Transmission mechanism, action mechanism, conversion mechanism, linkage mechanism, remote tripping mechanism, and isolating switch

Abstract

The present disclosure provides a transmission mechanism, an action mechanism, a switching mechanism, a connecting bar mechanism, a remote release mechanism, and an isolating switch, and relates to the technical field of low-voltage electric appliances. The transmission mechanism includes a first four-bar linkage mechanism, the first four-bar linkage mechanism is configured to be connected between an operating mechanism rotating shaft and a body rotating shaft, and the operating mechanism rotating shaft drives the body rotating shaft to synchronously rotate through the first four-bar linkage mechanism so as to enable a switch body to be opened or closed; and a rotation angle of the operating mechanism rotating shaft is less than a rotation angle of the body rotating shaft. The first four-bar linkage mechanism and the switch body are driven to be linked in sequence through the action of an operating mechanism, such that opening and closing are achieved. Compared with an existing structure connected by one connecting bar, the first four-bar linkage mechanism of the present disclosure meets the transmission requirement for a small distance between a rotating point (the operating mechanism rotating shaft) of the operating mechanism and a rotating point (the body rotating shaft) of the switch body under the miniaturized spatial layout, the rotation angle of the operating mechanism is less than that of the switch body, the transmission is stable and reliable, the transmission torque is large, the requirement for angle conversion in a small space is met, and the miniaturized product arrangement is facilitated.

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] The present disclosure claims priorities to Chinese Patent Application No. 2023106461212, filed on June 01, 2023 to China National Intellectual Property Administration and entitled "TRANSMISSION MECHANISM AND ISOLATING SWITCH"; Chinese Patent Application No. 2023106476627, filed on June 01, 2023 to China National Intellectual Property Administration and entitled "ACTION MECHANISM AND ISOLATING SWITCH"; Chinese Patent Application No. 2023208399368, filed on April 13, 2023 to China National Intellectual Property Administration and entitled "SWITCHING MECHANISM AND ISOLATING SWITCH"; Chinese Patent Application No. 202321386531X, filed on June 01, 2023 to China National Intellectual Property Administration and entitled "RELEASE MECHANISM OF ISOLATING SWITCH, AND ISOLATING SWITCH"; and Chinese Patent Application No. 2023208236638, filed on April 13, 2023 to China National Intellectual Property Administration and entitled "REMOTE RELEASE MECHANISM AND ISOLATING SWITCH". The entire contents of the above five patents are incorporated herein by reference.TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of low-voltage electric appliances, in particular to a transmission mechanism, an action mechanism, a switching mechanism, a connecting bar mechanism, a remote release mechanism, and an isolating switch.BACKGROUND

[0003] In an existing isolating switch, an operating mechanism is in transmission connection to a switch body through a connecting bar. The existing isolating switch has a large space, the distance between a rotating point of the operating mechanism and a rotating point of the switch body is far, and the connecting bar is convenient to arrange. However, with the demand for miniaturization, the space of the isolating switch becomes smaller, and in such a case, the distance between the rotating point of the existing operating mechanism and the rotating point of the switch body is also shortened accordingly, such that the arrangement of the existing connecting bar is undoubtedly no longer suitable for the space demand for miniaturization.SUMMARY

[0004] Aiming at the defects in the prior art, the present disclosure aims to provide a transmission mechanism, an action mechanism, a switching mechanism, a connecting bar mechanism, a remote release mechanism, and an isolating switch, which can meet the requirement for a miniaturized spatial layout.

[0005] In order to achieve the above objective, embodiments of the present disclosure adopt the following technical solutions: In a first aspect of the embodiments of the present disclosure, a transmission mechanism is provided. The transmission mechanism includes a first four-bar linkage mechanism, the first four-bar linkage mechanism is configured to be connected between an operating mechanism rotating shaft and a body rotating shaft, and the operating mechanism rotating shaft drives the body rotating shaft to synchronously rotate through the first four-bar linkage mechanism so as to enable a switch body to be opened or closed; a rotation angle of the operating mechanism rotating shaft is less than a rotation angle of the body rotating shaft.

[0006] Optionally, the first four-bar linkage mechanism is disposed inside the switch body, and an operating mechanism is connected to the first four-bar linkage mechanism through a mechanism support; a part of the mechanism support extends into the switch body, such that projections of the mechanism support and the first four-bar linkage mechanism along an axis direction of the body rotating shaft partially overlap the switch body.

[0007] Optionally, the first four-bar linkage mechanism includes a first connecting bar, a second connecting bar, a third connecting bar, and a fourth connecting bar which are connected in sequence, the first connecting bar is connected to the operating mechanism rotating shaft, the third connecting bar is connected to the body rotating shaft, and the fourth connecting bar is a virtual connecting bar connecting the body rotating shaft to the operating mechanism rotating shaft.

[0008] Optionally, the mechanism support is connected to the first connecting bar through the operating mechanism rotating shaft.

[0009] Optionally, the rotation angle of the operating mechanism rotating shaft is 40° to 70°, and the rotation angle of the body rotating shaft is 80° to 120°.

[0010] Optionally, when a quantity of switch bodies is greater than 1, a plurality of stages of switch bodies are disposed side by side along a first direction, and the body rotating shafts of two adjacent stages of switch bodies are connected through a second four-bar linkage mechanism.

[0011] Optionally, the second four-bar linkage mechanism includes a fifth connecting bar connected to the body rotating shaft of one stage of switch body, a sixth connecting bar connected to the body rotating shaft of a next stage of switch body, a seventh connecting bar connected to the fifth connecting bar and the sixth connecting bar, and a virtual eighth connecting bar connected between the body rotating shafts of two adjacent stages of switch bodies.

[0012] Optionally, the fifth connecting bar and the sixth connecting bar are disposed in parallel, such that the second four-bar linkage mechanism forms a parallelogram.

[0013] Optionally, the second connecting bar of the first four-bar linkage mechanism and the seventh connecting bar of the second four-bar linkage mechanism are respectively located on both sides of a connecting line of the body rotating shafts of two stages of switch bodies.

[0014] Optionally, in the first four-bar linkage mechanism and the second four-bar linkage mechanism, two adjacent connecting bars are in transmission connection through a shaft and a hole.

[0015] Optionally, in the first four-bar linkage mechanism and the second four-bar linkage mechanism, two adjacent connecting bars are in clamped connection.

[0016] In a second aspect of the embodiments of the present disclosure, an isolating switch is provided. The isolating switch includes a handle, an operating mechanism, and at least one stage of switch body which are linked in sequence, and the operating mechanism is connected to the switch body through the above-mentioned transmission mechanism.

[0017] Optionally, each stage of switch body includes a plurality of layers of switch units disposed along an axis direction of a body rotating shaft, and adjacent switch units are in transmission connection through respective body rotating shafts.

[0018] Optionally, the body rotating shafts are symmetrically disposed along a first direction, and grooves or bosses are formed at both symmetrical ends of each body rotating shaft; the body rotating shafts of two adjacent switch units are connected through cooperation of the groove and the boss which are adjacent; the plurality of layers of switch units are synchronously driven through respective body rotating shafts, an operating mechanism rotating shaft drives the body rotating shafts of one stage of switch body to synchronously rotate through a first four-bar linkage mechanism, and each stage of body rotating shaft of a plurality of stages of switch bodies is driven through a second four-bar linkage mechanism to synchronously rotate, such that the isolating switch is opened or closed.

[0019] In a third aspect of the embodiments of the present disclosure, an action mechanism is provided. The action mechanism includes an action assembly, and the action assembly includes a mechanism support and a first four-bar linkage mechanism which are in transmission connection; the mechanism support is driven to rotate and can drive the first four-bar linkage mechanism to move, such that a contact mechanism in a switch body of an isolating switch is opened or closed; along a rotation axis direction of the mechanism support, an orthographic projection of the action assembly on the switch body partially overlaps the switch body; the mechanism support includes a support main body and a bent portion connected to the support main body, and a width of the support main body along the rotation axis direction of the mechanism support is different from a width of the bent portion along the rotation axis direction of the mechanism support. The action mechanism can reduce the size of the isolating switch in a height direction.

[0020] Optionally, along the rotation axis direction of the mechanism support, an orthographic projection of the mechanism support on the switch body partially overlaps the switch body.

[0021] Optionally, the mechanism support includes two mounting plates disposed symmetrically and a connecting plate connecting the two mounting plates, and each mounting plate includes a first vertical plate, a second vertical plate, and a linkage plate connected between the first vertical plate and the second vertical plate; the two linkage plates and the two second vertical plates form the bent portion, and the bent portion is located inside the switch body; the two first vertical plates and the connecting plate form the support main body.

[0022] Optionally, a distance between the two first vertical plates is greater than a distance between the two second vertical plates.

[0023] Optionally, the second vertical plates are provided with arc-shaped grooves, and the arc-shaped grooves are configured to limit a rotation angle of the first four-bar linkage mechanism.

[0024] Optionally, a first connecting bar is disposed between the two second vertical plates, and a rotation center of the first connecting bar is disposed on a rotation shaft of the two second vertical plates; one end of the first connecting bar is in transmission connection to the first four-bar linkage mechanism, the other end of the first connecting bar is provided with a pin shaft, and one end of the pin shaft extends into the arc-shaped grooves.

[0025] Optionally, the action mechanism further includes an energy storage member, the energy storage member is disposed between the first connecting bar and the second vertical plates, and the energy storage member is capable of storing energy when the mechanism support drives the first four-bar linkage mechanism to be closed and releasing energy when the first four-bar linkage mechanism is opened.

[0026] Optionally, an energy storage spring is double torsional springs disposed symmetrically, two opposite ends of the double torsional springs are respectively fixed on the two second vertical plates, and middle ends of the double torsional springs are abutted with the first connecting bar.

[0027] Optionally, one ends of the two second vertical plates away from the first vertical plates extend toward a direction away from the first vertical plates to form extension plates; along the rotation axis direction of the mechanism support, orthographic projections of the extension plates on the switch body at least cover a part of the first four-bar linkage mechanism.

[0028] In a fourth aspect of the embodiments of the present disclosure, an isolating switch is provided. The isolating switch includes a handle, the above-mentioned action mechanism, a switch body, and a contact mechanism; the handle is in transmission connection to the action mechanism, and the contact mechanism is disposed inside the switch body and is in transmission connection to the action mechanism; the handle drives the action mechanism to rotate, and can drive the contact mechanism in the switch body to be opened or closed.

[0029] In a fifth aspect of the embodiments of the present disclosure, a switching mechanism is provided. The switching mechanism includes a handle rotating shaft and a rotation disc connected to the handle rotating shaft; a first matching portion is disposed on the rotation disc, and the first matching portion is configured to be in driving connection to a lever of an operating mechanism of an isolating switch; the handle rotating shaft is driven to rotate at an angle equal to or greater than 90° to drive the rotation disc to rotate, and when the rotation disc rotates, the first matching portion drives the lever to swing at an acute angle, such that the operating mechanism is opened or closed. The switching mechanism is simple in structure, and can achieve switching of an operation mode of an operating mechanism of a molded case circuit breaker, such that the operating mechanism of the molded case circuit breaker can be applicable to the isolating switch.

[0030] Optionally, the switching mechanism further includes a sliding plate between the rotation disc and the lever; the sliding plate is slidably configured on a housing of the isolating switch and is respectively in transmission connection to the first matching portion and the lever; a sliding direction of the sliding plate is perpendicular to an axis of the handle rotating shaft; the rotation disc rotates to drive the sliding plate to slide on the housing, and the lever can be driven to swing.

[0031] Optionally, the rotation disc is driven to rotate with the handle rotating shaft as a center on a first plane, the sliding plate is driven to move linearly along a first direction, and a linear movement of the sliding plate drives the lever to swing on a second plane; the first plane is a plane where the rotation disc is located, and the second plane is perpendicular to the first plane; the first direction is parallel to the first plane and perpendicular to the second plane.

[0032] Optionally, a sliding distance of the sliding plate in the first direction is equal to a first distance of the lever; the first distance is a movement distance of an end of the lever connected to the sliding plate along the first direction.

[0033] Optionally, the sliding plate is provided with a first limiting portion, and the first limiting portion is in transmission connection to the first matching portion; the handle rotating shaft is driven to rotate to drive the rotation disc to rotate, and when the rotation disc rotates, the first matching portion acts on the first limiting portion to enable the sliding plate to slide on the housing.

[0034] Optionally, the first matching portion is a kidney-shaped groove or a U-shaped groove, and the first limiting portion is a protrusion structure protruding toward the rotation disc; or, the first matching portion is a protrusion structure protruding towards the sliding plate, and the first limiting portion is a kidney-shaped groove or a U-shaped groove.

[0035] Optionally, a connector is disposed on one side of the sliding plate back away from the rotation disc, the connector is provided with a second matching portion, a second limiting portion is disposed on one side of the lever close to the connector, and the second limiting portion is in transmission connection to the second matching portion; the sliding plate is driven to slide on the housing, and the second matching portion can act on the second limiting portion to enable the lever to swing.

[0036] Optionally, the second matching portion is a kidney-shaped groove or a U-shaped groove, and the second limiting portion is a connecting shaft provided on the lever; or, the second matching portion is a connecting shaft provided on the connector, and the second limiting portion is a kidney-shaped groove or a U-shaped groove.

[0037] Optionally, the switching mechanism further includes a guide rod fixed on the housing of the isolating switch, the sliding plate is provided with a guide hole adapted to the guide rod, and the sliding plate is disposed on the guide rod through the guide hole in a penetrating manner and can slide on the guide rod.

[0038] Optionally, a rotation axis of the handle rotating shaft is perpendicular to a rotation axis of the lever, the rotation axis of the handle rotating shaft is located within a range of a first projection of the lever, and the first projection is an orthographic projection of a swing region of the lever between an open position and a closed position along an axis direction of the handle rotating shaft.

[0039] In a sixth aspect of the embodiments of the present disclosure, an isolating switch is provided. The isolating switch includes a switch body, an operating mechanism, a handle, and the above-mentioned switching mechanism; the switch body, the operating mechanism, the switching mechanism and the handle are stacked in sequence, and the handle drives the operating mechanism to move through the switching mechanism, such that the operating mechanism drives the switch body to be opened or closed.

[0040] In a seventh aspect of the embodiments of the present disclosure, a connecting bar mechanism is provided. The connecting bar mechanism includes an action assembly and a test assembly, the action assembly includes a release member, the release member moves along a preset direction to drive the action assembly to complete an opening action, the test assembly is disposed inside a housing, a driving surface of the test assembly is exposed out of the housing, and the test assembly is driven to directly or indirectly act on the release member so as to drive the release member to move along the preset direction.

[0041] Optionally, the test assembly is embedded into a test through hole of the housing, the driving surface is flush with an outer surface of the housing, or, the driving surface is located inside the test through hole.

[0042] Optionally, the test assembly includes a test button, the test button includes a pressing portion and a linkage portion connected to the pressing portion, the pressing portion is embedded in a test through hole of the housing and can move in the test through hole, and the linkage portion is connected to the release member.

[0043] Optionally, the test assembly reciprocates linearly within the housing, and the release member reciprocates rotationally within the housing.

[0044] Optionally, a release assembly is further included, and the release assembly is released to directly or indirectly act on the release member so as to drive the release member to move along the preset direction.

[0045] Optionally, the test assembly is rotatably connected to the release member through a connecting shaft, and the release assembly indirectly acts on the release member through the connecting shaft.

[0046] Optionally, the release assembly includes a release and a driving member connected to the release, and the release is energized to drive the driving member to move toward the release member so as to drive the release member to move along the preset direction.

[0047] Optionally, the driving member is provided with a first working face and a second working face, the first working face is connected to the release, and the second working face is configured to drive the release member to move along the preset direction.

[0048] Optionally, the second working face is parallel to the first working face, and the second working face is perpendicular to a knockout direction of the release.

[0049] In an eighth aspect of the embodiments of the present disclosure, an isolating switch is provided. The isolating switch includes: a housing, a handle disposed on the housing, any one of the above-mentioned connecting bar mechanisms, and a switch unit; the handle, an action assembly of a release mechanism, and a movable contact assembly of the switch unit are in driving connection in sequence.

[0050] In a ninth aspect of the embodiments of the present disclosure, a remote release mechanism is provided. The remote release mechanism includes a release and a driving member which are disposed inside a housing of an operating mechanism of an isolating switch and mounted on one side of a connecting bar mechanism of the operating mechanism, the driving member is in abutting contact with the connecting bar mechanism, the release includes a fixed portion and a slidable striking member, and when the release receives a breaking signal sent by a controller, the striking member slides out relative to the fixed portion and drives the connecting bar mechanism to be unlocked and opened through the driving member.

[0051] Optionally, a knockout direction of the striking member is the same as an unlocking direction of the connecting bar mechanism.

[0052] Optionally, the striking member is connected to the driving member, such that the striking member can drive the driving member to slide synchronously.

[0053] Optionally, the release is a magnetic flux release, the magnetic flux release is electrically connected to the controller, and the magnetic flux release is configured to receive the breaking signal sent by the controller.

[0054] Optionally, a sliding plate slidably connected in the housing is further included, a pushing portion is disposed on the sliding plate, the pushing portion is disposed on one side of the striking member back away from the fixed portion, and the pushing portion is configured to push the striking member to reset.

[0055] Optionally, a sliding direction of the sliding plate is the same or opposite to a knockout direction of the striking member.

[0056] Optionally, a contact surface of the pushing portion in contact with the striking member is perpendicular to a knockout axis of the striking member.

[0057] Optionally, a guide rod fixedly connected in the housing is further included, the sliding plate is provided with a guide hole, and the sliding plate is disposed on the guide rod through the guide hole in a penetrating manner, such that the sliding plate is slidably connected to the guide rod.

[0058] Optionally, a quantity of guide rods is two, and the two guide rods are parallel to each other.

[0059] In a tenth aspect of the embodiments of the present disclosure, an isolating switch is provided. The isolating switch includes a switch body, a handle, and an operating mechanism, the operating mechanism includes a connecting bar mechanism and any one of the above-mentioned remote release mechanisms, the switch body, the operating mechanism, and the handle are stacked in sequence, and the handle drives the switch body to be opened or closed through the operating mechanism.BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly described below. It should be understood that the following drawings only illustrate some embodiments of the present disclosure and therefore should not be considered as limiting the scope of the present disclosure, and other related drawings can be derived from these drawings by those of ordinary skill in the art without creative efforts. FIG. 1 is a first schematic structural diagram of a transmission mechanism according to an embodiment of the present disclosure; FIG. 2 is a second schematic structural diagram of a transmission mechanism according to an embodiment of the present disclosure; FIG. 3 is a third schematic structural diagram of a transmission mechanism according to an embodiment of the present disclosure; FIG. 4 is a schematic structural diagram of a body rotating shaft of an isolating switch according to an embodiment of the present disclosure; FIG. 5 is a schematic structural diagram of a mechanism support according to an embodiment of the present disclosure; FIG. 6 is a first schematic structural diagram of an isolating switch according to an embodiment of the present disclosure; FIG. 7 is a first schematic structural diagram of an action mechanism inside a switch body according to an embodiment of the present disclosure; FIG. 8 is a second schematic structural diagram of an action mechanism inside a switch body according to an embodiment of the present disclosure; FIG. 9 is a schematic structural diagram of an action mechanism, a first four-bar linkage mechanism and a contact mechanism according to an embodiment of the present disclosure; FIG. 10 is a schematic structural diagram of an action mechanism according to an embodiment of the present disclosure; FIG. 11 is a schematic structural diagram of an action mechanism and a first four-bar linkage mechanism according to an embodiment of the present disclosure; FIG. 12 is a first schematic structural diagram of a switching mechanism according to an embodiment of the present disclosure; FIG. 13 is a second schematic structural diagram of a switching mechanism according to an embodiment of the present disclosure; FIG. 14 is a third schematic structural diagram of a switching mechanism according to an embodiment of the present disclosure; FIG. 15 is a fourth schematic structural diagram of a switching mechanism according to an embodiment of the present disclosure; FIG. 16 is a fifth schematic structural diagram of a switching mechanism according to an embodiment of the present disclosure; FIG. 17 is a schematic structural diagram of a lever according to an embodiment of the present disclosure; FIG. 18 is a schematic structural diagram of a sliding plate and a lever according to an embodiment of the present disclosure; FIG. 19 is a first schematic structural diagram of a connecting bar mechanism according to an embodiment of the present disclosure; FIG. 20 is a second schematic structural diagram of a connecting bar mechanism according to an embodiment of the present disclosure; FIG. 21 is a schematic diagram of a connecting bar mechanism mounted inside a housing according to an embodiment of the present disclosure; FIG. 22 is a third schematic structural diagram of a connecting bar mechanism according to an embodiment of the present disclosure; FIG. 23 is a fourth schematic structural diagram of a connecting bar mechanism according to an embodiment of the present disclosure; FIG. 24 is a second schematic structural diagram of an isolating switch according to an embodiment of the present disclosure; FIG. 25 is an exploded schematic diagram of an operating mechanism according to an embodiment of the present disclosure; FIG. 26 is a first schematic structural diagram of an operating mechanism according to an embodiment of the present disclosure; FIG. 27 is a second schematic structural diagram of an operating mechanism according to an embodiment of the present disclosure; FIG. 28 is a schematic structural diagram of a release and a driving member according to an embodiment of the present disclosure; FIG. 29 is a third schematic structural diagram of an operating mechanism according to an embodiment of the present disclosure; and FIG. 30 is a schematic structural diagram of a sliding plate according to an embodiment of the present disclosure.

[0061] Reference numerals: 110-first four-bar linkage mechanism; 111-first connecting bar; 1111-pin shaft; 112-second connecting bar; 113-third connecting bar; 120-mechanism support; 121-support main body; 122-bent portion; 123-mounting plate; 1231-first vertical plate; 1232-second vertical plate; 1232a-arc-shaped groove; 1232b-arc shaped notch; 1233-linkage plate; 1234-extension plate; 124-connecting plate; 125-energy storage member; 200-operating mechanism; 210-operating mechanism rotating shaft; 220-lever; 221-second limiting portion; 230-connecting bar mechanism; 231-release member; 2311-abutting portion; 232-test button; 2321-pressing portion; 2322-driving surface; 2323-linkage portion; 233-release assembly; 2331-release; 2332-striking member; 2333-driving member; 2334-first working face; 2335-second working face; 2336-fixed portion; 2337-abutting arm; 234-connecting shaft; 2341-connecting cap; 235-rotating shaft; 236-reset member; 237-latch plate; 2371-first limiting groove; 2372-second limiting groove; 238-trip latch member; 2381-limiting portion; 300-switch body; 310-body rotating shaft; 311-groove; 320-second four-bar linkage mechanism; 321-fifth connecting bar; 322-sixth connecting bar; 323-seventh connecting bar; 330-switch unit; 410-handle rotating shaft; 420-rotation disc; 421-first matching portion; 422-connector; 4221-second matching portion; 430-sliding plate; 431-first limiting portion; 432-guide hole; 433-pushing portion; 440-guide rod; 500-housing; 600-handle; 700-contact mechanism; 710-movable contact assembly; 800-isolating switch.DETAILED DESCRIPTION

[0062] To make the objectives, technical solutions, and advantages of embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It is evident that the described embodiments are some, but not all embodiments of the present disclosure. Components of the embodiments of the present disclosure generally described and illustrated in the drawing herein may be arranged and designed in various configurations.

[0063] Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the present disclosure as claimed, but merely represents selected embodiments of the present disclosure. It should be noted that, unless conflicting, various features of the embodiments of the present disclosure may be combined with each other, and the combined embodiments still fall within the protection scope of the present disclosure.

[0064] It should be noted that similar reference numerals and letters refer to similar items in the following drawings, and thus, once an item is defined in one figure, it need not be further defined or explained in the subsequent drawings.

[0065] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, or orientations or positional relationships commonly assumed when using the product of the present disclosure, which is merely for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation, be constructed and operated in the specific orientation, and thus should not be construed as limiting the present disclosure. Furthermore, the terms "first", "second", "third", and the like are used for distinguishing descriptions only and shall not be construed as indicating or implying relative importance.

[0066] Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

[0067] In the description of the present disclosure, it should also be noted that, unless otherwise explicitly specified or defined, the terms "disposed", "mounted", "connected", or "linked" shall be interpreted broadly and may be, for example, fixed connection, detachable connection, or integral connection; mechanical connection, or electrical connection; direct connection, indirect connection via an intermediate, or internal communication between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present disclosure may be understood according to the specific condition.

[0068] In an existing isolating switch, the distance between a rotating point of an operating mechanism and a rotating point of a switch body is far, such that the arrangement of connecting bars is convenient. However, under the requirement of a miniaturized space scene, the arrangement of the existing connecting bar is undoubtedly no longer suitable for the requirement of short-distance transmission.

[0069] In view of the above, in order to solve the above problems, in a first aspect of embodiments of the present disclosure, referring to FIGS. 1-3, a transmission mechanism is provided. The transmission mechanism includes a first four-bar linkage mechanism 110, and the first four-bar linkage mechanism 110 is configured to be connected between an operating mechanism rotating shaft 210 and a body rotating shaft 310, such that a rotation angle θ 1 of the operating mechanism rotating shaft 210 is less than a rotation angle θ 2 of the body rotating shaft 310.

[0070] An operating mechanism 200 and a switch body 300 are driven by the transmission mechanism. Referring to FIG. 6, a handle 600 drives the operating mechanism 200 to act, and then drives the switch body 300 to act through the transmission mechanism, so as to achieve opening and closing.

[0071] The transmission mechanism includes the first four-bar linkage mechanism 110, and the operating mechanism rotating shaft 210 is connected to the body rotating shaft 310 through the first four-bar linkage mechanism 110, such that the first four-bar linkage mechanism 110 and the switch body 300 are driven to be linked through the action of the operating mechanism 200.

[0072] In the embodiments of the present disclosure, the rotation angle θ 1 of the operating mechanism rotating shaft 210 is 40° to 70°, and the rotation angle θ 2 of the body rotating shaft 310 is 80° to 120°. The rotation angle θ 1 of the operating mechanism rotating shaft 210 is an acute angle, the rotation angle θ 2 of the body rotating shaft 310 is an obtuse angle, and the conversion from the acute angle to the obtuse angle is achieved through the first four-bar linkage mechanism 110, so as to adapt to the requirement of a short distance between a rotation center of the operating mechanism 200 and a rotation center of the switch body 300.

[0073] Therefore, the transmission mechanism provided by the embodiments of the present disclosure includes the first four-bar linkage mechanism 110 connecting the operating mechanism 200 and the switch body 300. The operating mechanism rotating shaft 210 and the body rotating shaft 310 are in transmission connection through the first four-bar linkage mechanism 110, such that the first four-bar linkage mechanism 110 and the switch body 300 are driven to be linked in sequence through the action of the operating mechanism 200, so as to achieve opening and closing. Compared with an existing structure in which connection is achieved through one connecting bar, in the present disclosure, the operating mechanism rotating shaft 210 drives the body rotating shaft 310 to synchronously rotate through the first four-bar linkage mechanism 110, and the first four-bar linkage mechanism 110 meets the transmission requirement for the small distance between the rotating point (the operating mechanism rotating shaft 210) of the operating mechanism 200 and the rotating point (the body rotating shaft 310) of the switch body 300 under the miniaturized spatial layout, such that the rotation angle θ 1 of the operating mechanism 200 is less than the rotation angle θ 2 of the switch body 300, the transmission is stable and reliable, the transmission torque is large, the requirement for angle conversion in a small space is met, and the miniaturized product arrangement is facilitated.

[0074] On this basis, the first four-bar linkage mechanism 110 is disposed inside the switch body 300, and the operating mechanism 200 is connected to the first four-bar linkage mechanism 110 through a mechanism support 120; a part of the mechanism support 120 extends into the switch body 300, such that projections of the mechanism support 120 and the first four-bar linkage mechanism 110 along an axis direction of the body rotating shaft 310 partially overlap the switch body 300.

[0075] Exemplarily, referring to FIGS. 3, 5 and 6, the mechanism support 120 is provided with second vertical plates 1232 extending into the switch body 300, arc-shaped notches 1232b are formed on the second vertical plates 1232 to avoid the body rotating shaft 310, and the operating mechanism rotating shaft 210 penetrates through the second vertical plates 1232 of the mechanism support 120 and is connected to the first four-bar linkage mechanism 110.

[0076] Exemplarily, two second vertical plates 1232 oppositely disposed are provided to clamp the first connecting bar 111 of the first four-bar linkage mechanism 110 therebetween.

[0077] Arc-shaped grooves 1232a are further formed on the second vertical plates 1232, and a rotation angle of the first four-bar linkage mechanism 110 can be limited through the arc-shaped grooves 1232a; a pin shaft 1111 is disposed inside the arc-shaped grooves 1232a, and the pin shaft 1111 penetrates into the first four-bar linkage mechanism 110 to connect the second vertical plates 1232 to the first four-bar linkage mechanism 110; when the first four-bar linkage mechanism 110 rotates along with the mechanism support 120, a rotation range of the first four-bar linkage mechanism 110 is limited within an arc range of the arc-shaped grooves 1232a through the rotation of the pin shaft 1111 in the arc-shaped grooves 1232a.

[0078] In addition, the operating mechanism rotating shaft 210 is further provided with an energy storage member 125, the energy storage member 125 is generally an energy storage spring and sleeves the operating mechanism rotating shaft 210, and two ends of the energy storage member are respectively connected to the two second vertical plates 1232; the energy storage member 125 is configured to store energy when the mechanism support 120 drives the first four-bar linkage mechanism 110 to be closed and release energy when the first four-bar linkage mechanism 110 is opened.

[0079] The first four-bar linkage mechanism 110 is located inside the switch body 300, the second vertical plates 1232 extend into the switch body 300, and the operating mechanism rotating shaft 210 is connected to the second vertical plates 1232, such that the arrangement can more adapt to the transmission requirement of the small distance between the operating mechanism rotating shaft 210 and the body rotating shaft 310. It can be seen from FIG. 3 that the operating mechanism rotating shaft 210 and the body rotating shaft 310 are basically close to each other, such that the size of the isolating switch 800 in a height direction (a first direction F1) can be reduced, and thus the isolating switch 800 can meet the scene requirement of volume miniaturization.

[0080] Specifically, the first four-bar linkage mechanism 110 includes a first connecting bar 111, a second connecting bar 112, a third connecting bar 113, and a fourth connecting bar which are connected in sequence, the first connecting bar 111 is connected to the operating mechanism rotating shaft 210, the third connecting bar 113 is connected to the body rotating shaft 310, and the fourth connecting bar is a virtual connecting bar connecting the body rotating shaft 310 to the operating mechanism rotating shaft 210.

[0081] Exemplarily, one end of the first connecting bar 111 is connected to the operating mechanism rotating shaft 210, the other end is connected to one end of the second connecting bar 112, the other end of the second connecting bar 112 is connected to one end of the third connecting bar 113, and the third connecting bar 113 is provided with the body rotating shaft 310; the first four-bar linkage mechanism 110 is formed by the three connecting bars and the virtual connecting bar formed between the operating mechanism rotating shaft 210 and the body rotating shaft 310.

[0082] As mentioned above, the operating mechanism rotating shaft 210 penetrates through the second vertical plates 1232 of the mechanism support 120 to be connected to the first four-bar linkage mechanism 110. Specifically, the mechanism support 120 is connected to the first connecting bar 111 through the operating mechanism rotating shaft 210.

[0083] When the first four-bar linkage mechanism 110 is connected, two adjacent connecting bars are in transmission connection through a shaft and a hole. Specifically, the first connecting bar 111 and the second connecting bar 112 are in transmission connection through the shaft and the hole, and the second connecting bar 112 and the third connecting bar 113 are in transmission connection through the shaft and the hole.

[0084] Exemplarily, the hole is formed on an end portion of the first connecting bar 111, the shaft is disposed on an end portion of the second connecting bar 112, and the shaft and the hole cooperate to connect the first connecting bar 111 to the second connecting bar 112. In other cases, the shaft is disposed on an end portion of the first connecting bar 111, the hole is formed on an end portion of the second connecting bar 112, and the shaft and the hole cooperate to connect the first connecting bar and the second connecting bar. Similarly, for the second connecting bar 112 and the third connecting bar 113, the hole may be formed on the second connecting bar 112, and the shaft is disposed on the third connecting bar 113; or, the hole is formed on the third connecting bar 113, and the shaft is disposed on the second connecting bar 112.

[0085] Further, the first connecting bar 111, the second connecting bar 112, and the third connecting bar 113 may be connected pairwise; or a single connecting bar is clamped between two connecting bars; when the first four-bar linkage mechanism 110 is connected, two adjacent connecting bars are connected in a clamping manner. For example, two first connecting bars 111 are included, and the second connecting bar 112 is clamped between the two parallel first connecting bars 111; or, two second connecting bars 112 are included, and the first connecting bar 111 and the third connecting bar 113 are respectively clamped between the two parallel second connecting bars 112; or, two third connecting bars 113 are included, and the second connecting bar 112 is clamped between the two parallel third connecting bars 113.

[0086] In one implementation of the present disclosure, two parallel second connecting bars 112 are provided, and end portions of the two parallel second connecting bars 112 respectively clamp end portions of the first connecting bar 111 and the third connecting bar 113 therebetween. Compared with a case that single-side stress deflection is likely to occur when a single connecting bar is used for connection, the present disclosure adopts the arrangement of clamping a single connecting bar between two connecting bars, and can ensure that the transmission force is transmitted in a plane and the transmission force is stable.

[0087] On this basis, when a quantity of switch bodies 300 is greater than 1, a plurality of stages of switch bodies 300 are disposed side by side along the first direction, and the body rotating shafts 310 of two adjacent stages of switch bodies 300 are connected through a second four-bar linkage mechanism 320.

[0088] Referring to FIG. 1, the first direction is an axis direction perpendicular to the body rotating shaft 310, and in the first direction, one side of the operating mechanism 200 is sequentially provided with a first stage of switch body 300, a second stage of switch body 300, and a third stage of switch body 300, etc. side by side. Every two stages of switch bodies 300 are connected through the second four-bar linkage mechanism 320, and specifically, the second four-bar linkage mechanism 320 is connected between the body rotating shafts 310 of the stages of switch bodies 300.

[0089] Specifically, the second four-bar linkage mechanism 320 includes a fifth connecting bar 321 connected to the body rotating shaft 310 of one stage of switch body 300, a sixth connecting bar 322 connected to the body rotating shaft 310 of a next stage of switch body 300, a seventh connecting bar 323 connected to the fifth connecting bar 321 and the sixth connecting bar 322, and a virtual eighth connecting bar connected between the body rotating shafts 310 of two adjacent stages of switch bodies 300.

[0090] The virtual eighth connecting bar is formed between the body rotating shafts 310 of two adjacent stages of switch bodies 300, and, together with the fifth connecting bar 321, the sixth connecting bar 322, and the seventh connecting bar 323, forms the second four-bar linkage mechanism 320. Exemplarily, the fifth connecting bar 321, the third connecting bar 113 and the first stage of body rotating shaft 310 are integrally disposed, and the first stage of body rotating shaft 310 is located at a junction of end portions of the fifth connecting bar 321 and the third connecting bar 113.

[0091] The first stage of switch body 300 and the second stage of switch body 300 are linked through the second four-bar linkage mechanism 320. Similarly, another second four-bar linkage mechanism 320 may be disposed between the second stage of switch body 300 and the third stage of switch body 300, yet another second four-bar linkage mechanism may be disposed between the third stage of switch body 300 and the fourth stage of switch body 300, and in this way, the transmission among all stages of switch bodies 300 is achieved through the second four-bar linkage mechanism 320.

[0092] Through the second four-bar linkage mechanism 320, synchronous transmission among all stages of switch bodies 300 is achieved, the transmission is stable and reliable, and the transmission torque is large; the structure has strong extensibility, and a plurality of stages of switch bodies 300 can be connected in parallel through the second four-bar linkage mechanism 320, thereby achieving the modularization requirement of products.

[0093] Similar to the first four-bar linkage mechanism 110, in the second four-bar linkage mechanism 320, two adjacent connecting bars are in transmission connection through a shaft and a hole. Specifically, the fifth connecting bar 321 and the sixth connecting bar 322 are in transmission connection through the shaft and the hole, and the sixth connecting bar 322 and the seventh connecting bar 323 are in transmission connection through the shaft and the hole.

[0094] The shaft may be disposed on the fifth connecting bar 321, and the hole is formed on the sixth connecting bar 322; or the shaft is disposed on the sixth connecting bar 322, and the hole is formed on the fifth connecting bar 321; similarly, for the sixth connecting bar 322 and the seventh connecting bar 323, the shaft and the hole cooperate to achieve connection and transmission between the two connecting bars.

[0095] Exemplarily, the fifth connecting bar 321 and the sixth connecting bar 322 are disposed in parallel, such that the second four-bar linkage mechanism 320 forms a parallelogram structure so as to achieve stable transmission.

[0096] Similarly, in the second four-bar linkage mechanism 320, two adjacent connecting bars are connected in a clamping manner. Two fifth connecting bars 321 are included, and the sixth connecting bar 322 is clamped between the two parallel fifth connecting bars 321; or, two sixth connecting bars 322 are included, and the fifth connecting bar 321 and the seventh connecting bar 323 are respectively clamped between the two parallel sixth connecting bars 322; or, two seventh connecting bars 323 are included, and the sixth connecting bar 322 is clamped between the two parallel seventh connecting bars 323.

[0097] The present disclosure shows a case that end portions of the two seventh connecting bars 323 respectively clamp the fifth connecting bar 321 and the sixth connecting bar 322. Similar to the first four-bar linkage mechanism 110, the second four-bar linkage mechanism 320 can ensure stable transmission by using two connecting bars to clamp a single connecting bar.

[0098] The first four-bar linkage mechanism 110 and the second four-bar linkage mechanism 320 are respectively located at two sides of a connection line of the body rotating shafts 310 of two stages of switch bodies 300.

[0099] A connection line direction of the body rotating shafts 310 of the two stages of switch bodies 300 is the first direction. Exemplarily, the first four-bar linkage mechanism 110 is located below the connection line, and the second four-bar linkage mechanism 320 is located above the connection line, so as to facilitate spatial layout and achieve stable transmission.

[0100] Specifically, the second connecting bar 112 and the seventh connecting bar 323 are respectively located at two sides of the connection line of the body rotating shafts 310 of the two stages of switch bodies 300 to form a structure symmetrical along the connection line, which is beneficial to the rotation balance of the two four-bar linkage mechanisms 230.

[0101] In a second aspect of the embodiments of the present disclosure, referring to FIGS. 3 and 6, the embodiments of the present disclosure further provides an isolating switch 800. The isolating switch further includes a handle 600, an operating mechanism 200, and at least one stage of switch body 300 which are linked in sequence, and the operating mechanism 200 and one stage of switch body 300 are connected through the above-mentioned transmission mechanism.

[0102] The operating mechanism 200 is in transmission connection to the first stage of switch body 300 through a first four-bar linkage mechanism 110, and all stages of switch bodies 300 are in transmission connection through a second four-bar linkage mechanism 320.

[0103] Each stage of switch body 300 includes a plurality of layers of switch units 330 disposed along an axis direction of a body rotating shaft 310, and adjacent switch units 330 are in transmission connection through respective body rotating shafts 310.

[0104] For a single stage of switch body 300, the switch body includes a plurality of layers of switch units 330 stacked, and the plurality of layers of switch units 330 are stacked along the axis direction of the body rotating shaft 310; the plurality of layers of switch units 330 are in transmission connection through respective body rotating shafts 310.

[0105] In addition, in order to improve the convenience of assembly, the body rotating shafts 310 of the switch units 330 are symmetrically disposed along a direction perpendicular to the axis direction of the body rotating shaft 310, that is, the first direction. Referring to FIG. 4, grooves 311 or bosses are formed at both symmetrical ends of the body rotating shaft 310; the body rotating shafts 310 of two adjacent switch units 330 are connected through the cooperation of the adjacent grooves 311 and the bosses.

[0106] Both ends of the same body rotating shaft 310 are provided with the grooves 311 or the bosses; the adjacent body rotating shafts 310 are in transmission connection through the cooperation of the bosses and the grooves 311.

[0107] For example, both ends of a first body rotating shaft 310 are provided with grooves 311, both ends of the adjacent body rotating shaft 310 above the first body rotating shaft are provided with bosses, and the bosses of the body rotating shaft 310 above the first body rotating shaft are embedded in the grooves 311 of the first body rotating shaft 310, such that the two body rotating shafts are in transmission connection; the body rotating shaft 310 below the first body rotating shaft 310 is also connected to the first body rotating shaft in the same manner, and all layers of body rotating shafts 310 are sequentially in transmission connection to achieve torque transfer, such that all layers of switch units 330 are synchronously driven.

[0108] In the axis direction of the body rotating shaft 310, the plurality of layers of switch units 330 are synchronously driven through respective body rotating shafts 310; along the first direction, the handle 600 drives the operating mechanism 200 to act, an operating mechanism rotating shaft 210 drives the body rotating shafts 310 of one stage of switch body 300 to synchronously rotate through the first four-bar linkage mechanism 110, and each stage of body rotating shaft 310 of the plurality of stages of switch bodies 300 is driven through the second four-bar linkage mechanism 320 to synchronously rotate, such that the isolating switch 800 is opened or closed.

[0109] The isolating switch 800 has the same structure and beneficial effects as the transmission mechanism in the above-mentioned embodiments. The structure and beneficial effects of the transmission mechanism have been described in detail in the above-mentioned embodiments, and are not described in detail herein.

[0110] In a third aspect of the embodiments of the present disclosure, referring to FIGS. 7-9, an action mechanism is provided. The action mechanism includes an action assembly, and the action mechanism includes a mechanism support 120 and a first four-bar linkage mechanism 110 which are in transmission connection; the mechanism support 120 is driven to rotate and can drive the first four-bar linkage mechanism 110 to move, such that contact mechanisms 700 in switch bodies 300 of an isolating switch 800 are opened or closed; along a rotation axis direction of the mechanism support 120, an orthographic projection of the action assembly on the switch bodies 300 partially overlaps the switch bodies 300; the mechanism support 120 includes a support main body 121 and a bent portion 122 connected to the support main body 121, and a width of the support main body 121 along the rotation axis direction of the mechanism support 120 is different from a width of the bent portion 122 along the rotation axis direction of the mechanism support 120. The action mechanism can reduce the size of the isolating switch 800 in a height direction.

[0111] It should be noted that, firstly, the action mechanism provided by the present disclosure includes the action assembly, the action assembly includes the mechanism support 120 and the first four-bar linkage mechanism 110, as shown in FIGS. 8 and 9, the mechanism support 120 is in transmission connection to the first four-bar linkage mechanism 110, such that the mechanism support 120 is driven to rotate to drive the first four-bar linkage mechanism 110 to move, and thus the first four-bar linkage mechanism 110 drives the contact mechanisms 700 in the switch bodies 300 of the isolating switch 800 to be opened or closed.

[0112] It should be understood that the contact mechanisms 700 of the isolating switch 800 are located inside the switch bodies 300. The specific structures of the first four-bar linkage mechanism 110 and the contact mechanisms 700 are not limited in the present disclosure, and those skilled in the art can set the specific structures by themselves as long as the mechanism support 120 can be driven to rotate to drive the first four-bar linkage mechanism 110 to move, so as to open or close the contact mechanisms 700 located inside the switch bodies 300.

[0113] Secondly, along the rotation axis direction of the mechanism support 120, an orthographic projection of the action assembly on the switch body 300 partially overlaps the switch body 300. Optionally, in one feasible implementation, it may be that: along the rotation axis direction of the mechanism support 120, the orthographic projection of the mechanism support 120 on the switch body 300 partially overlaps the switch body 300.

[0114] In another feasible implementation, it may be that: along the rotation axis direction of the mechanism support 120, an orthographic projection of the first four-bar linkage mechanism 110 on the switch body 300 partially overlaps the switch body 300.

[0115] In yet another feasible implementation, it may be that: along the rotation axis direction of the mechanism support 120, orthographic projections of a part of the structure of the mechanism support 120 and the first four-bar linkage mechanism 110 on the switch body 300 partially overlap with the switch body 300.

[0116] That is, along the rotation axis direction of the mechanism support 120, the present disclosure does not limit which part of the action assembly partially overlaps the switch body 300 in the orthographic projection on the switch body 300, and the action assembly can be determined by those skilled in the art according to the actual situation. For convenience of description, the following and the drawings mainly exemplify that along the rotation axis direction of the mechanism support 120, the orthographic projection of the first four-bar linkage mechanism 110 on the switch body 300 partially overlaps the switch body 300.

[0117] It should be noted that the rotation axis direction of the mechanism support 120 corresponds to a direction perpendicular to the paper in the orientation of FIG. 8. In the present embodiment, along the rotation axis direction of the mechanism support 120, an orthographic projection of the mechanism support 120 on the switch body 300 partially overlaps the switch body 300. That is, as shown in FIGS. 7 and 8, at least a part of the mechanism support 120 extends downward into the switch body 300 of the isolating switch 800.

[0118] According to the present disclosure, at least a part of region of the action assembly extends into the switch body 300 of the isolating switch 800, such that the overall size of the isolating switch 800 along the height direction thereof can be reduced, the isolating switch 800 is beneficial to miniaturization, the application scenes of the isolating switch 800 can be widened, and the applicability of a plurality of application scenes of the isolating switch 800 is improved.

[0119] Specifically, the size of the action assembly extending into the switch body 300 is not limited in the present disclosure, and those skilled in the art can determine the size according to the actual situation. For example, when the mechanism support 120 of the action assembly extends into the switch body 300, the bent portion 122 of the mechanism support 120 may extend into the switch body 300 as a whole, or at least a part of the bent portion 122 may extend into the switch body 300. The bent portion 122 will be described in detail below.

[0120] Thirdly, the above-mentioned mechanism support 120 includes a support main body 121 and a bent portion 122 connected to the support main body 121. In the present embodiment, the bent portion 122 is located between the first four-bar linkage mechanism 110 and the support main body 121.

[0121] In addition, exemplarily, the above-mentioned bent portion 122 and the support main body 121 may be connected to each other to form an integral structure, as shown in FIG. 9.

[0122] In the present embodiment, along the rotation axis direction of the mechanism support 120, a width of the support main body 121 and a width of the bent portion 122 are different, and thus, the mechanism support 120 has two different widths. The specific width of the support main body 121 and the specific width of the bent portion 122 may be set by those skilled in the art according to the specific components of the isolating switch 800 used for being connected to the mechanism support 120, which are not specifically limited in the present disclosure.

[0123] In summary, the action mechanism provided by the present disclosure includes the action assembly, and the action assembly includes the mechanism support 120 and the first four-bar linkage mechanism 110 which are in transmission connection; the mechanism support 120 is driven to rotate and can drive the first four-bar linkage mechanism 110 to move, such that the contact mechanisms 700 in the switch bodies 300 of the isolating switch 800 are opened or closed; along the rotation axis direction of the mechanism support 120, the orthographic projection of the action assembly on the switch bodies 300 partially overlaps the switch bodies 300; the mechanism support 120 includes the support main body 121 and the bent portion 122 connected to the support main body 121, and the width of the support main body 121 along the rotation axis direction of the mechanism support 120 is different from the width of the bent portion 122 along the rotation axis direction of the mechanism support 120. According to the action mechanism provided by the present disclosure, the action assembly included in the action mechanism is configured in a way that the orthographic projection of the action assembly on the switch body 300 partially overlaps the switch body 300 along the rotation axis direction of the mechanism support 120, such that it is equivalent to that at least a part of region of the action assembly extends into the switch body 300 of the isolating switch 800, and thus, the overall size of the isolating switch 800 along the height direction thereof can be reduced, the miniaturization of the isolating switch 800 can be achieved, the application scenes of the isolating switch 800 can be widened, and the applicability of a plurality of application scenes of the isolating switch 800 is improved.

[0124] Referring to FIGS. 5 and 10 in combination, optionally, the mechanism support 120 includes two mounting plates 123 disposed symmetrically and a connecting plate 124 connecting the two mounting plates 123, and each mounting plate 123 includes a first vertical plate 1231, a second vertical plate 1232, and a linkage plate 1233 connected between the first vertical plate 1231 and the second vertical plate 1232; the two linkage plates 1233 and the two second vertical plates 1232 form the bent portion 122, and the bent portion 122 is located inside the switch body 300; the two first vertical plates 1231 and the connecting plate 124 form the support main body 121.

[0125] It should be noted that, firstly, the above-mentioned symmetrical arrangement does not mean that the two mounting plates 123 are absolutely symmetrical, but that slight differences may be made in the specific detailed structure. That is, the symmetrical arrangement is meant to be substantially symmetrical but allows for minor differences (for example, one mounting plate 123 is provided with a small lug and the other mounting plate 123 is not provided with a small lug).

[0126] Secondly, the mechanism support 120 includes the two mounting plates 123 disposed symmetrically and the connecting plate 124 connected between the two mounting plates 123, as shown in FIG. 5. Exemplarily, each mounting plate 123 includes the first vertical plate 1231, the second vertical plate 1232, and the linkage plate 1233, where one end of the linkage plate 1233 is connected to the first vertical plate 1231, and the other end is connected to the second vertical plate 1232.

[0127] The two linkage plates 1233 and the two second vertical plates 1232 form the bent portion, and the bent portion is located inside the switch body 300 (that is, along the rotation axis direction of the mechanism support 120, an orthographic projection of the bent portion on the switch body 300 partially overlaps the switch body 300). The two first vertical plates 1231 and the connecting plate 124 form the support main body 121.

[0128] Optionally, in the present embodiment, a distance between the two first vertical plates 1231 is greater than a distance between the two second vertical plates 1232. In this way, along the rotation axis direction of the mechanism support 120, the width of the support main body 121 is different from the width of the bent portion 122, and the width of the support main body 121 is greater than the width of the bent portion, as shown in FIGS. 5 and 10. In the present disclosure, the width of the bent portion 122 along the rotation axis direction of the mechanism support 120 is set to be less than the width of the support main body 121 along the rotation axis direction of the mechanism support 120, such that the bent portion extending into the switch body 300 can occupy the space inside the switch body 300 as little as possible.

[0129] In addition, in the present embodiment, as shown in FIGS. 5 and 11, the second vertical plates 1232 are provided with arc-shaped grooves 1232a, and the arc-shaped grooves 1232a are configured to limit a rotation angle of the first four-bar linkage mechanism 110. The rotation angle of the first four-bar linkage mechanism 110 can be limited through the arrangement of the arc-shaped grooves 1232a, where the size and the radian of the arc-shaped grooves 1232a are not limited in the present disclosure and can be determined by those skilled in the art according to the requirement.

[0130] It should be noted that, for example, the first four-bar linkage mechanism 110 may be embedded in the arc-shaped grooves 1232a, such that when the mechanism support 120 rotates, the first four-bar linkage mechanism 110 is driven to rotate through the arc-shaped grooves 1232a, thereby achieving opening or closing. For another example, an intermediate member may be embedded in the arc-shaped grooves 1232a, and the intermediate member is in transmission connection to the first four-bar linkage mechanism 110, such that when the mechanism support 120 rotates, the intermediate member is driven to rotate through the arc-shaped grooves 1232a, and thus, the intermediate member drives the first four-bar linkage mechanism 110 to move, and opening or closing of the first four-bar linkage mechanism 110 may also be achieved.

[0131] Exemplarily, referring to FIG. 3 in combination, when the arc-shaped grooves 1232a drive the first four-bar linkage mechanism 110 to move through the intermediate member, it may be that: a first connecting bar 111 (i.e. the above-mentioned intermediate member) is disposed between the two second vertical plates 1232, and a rotation center of the first connecting bar 111 is disposed on a rotation shaft of the two second vertical plates 1232; one end of the first connecting bar 111 is in transmission connection to the first four-bar linkage mechanism 110, the other end of the first connecting bar is provided with a pin shaft 1111, and one end of the pin shaft 1111 extends into the arc-shaped grooves 1232a.

[0132] That is, the first connecting bar 111 sleeves the rotation shaft of the two second vertical plates 1232 (the rotation shaft of the two second vertical plates 1232 rotates to drive the mechanism support 120 to rotate), and the first connecting bar 111 can rotate on the rotation shaft of the two second vertical plates 1232.

[0133] In addition, one end of the first connecting bar 111 is in transmission connection to the first four-bar linkage mechanism 110, and the other end is provided with the pin shaft 1111, and one end of the pin shaft 1111 away from the first connecting bar 111 extends into the arc-shaped grooves 1232a. In this way, when the mechanism support 120 is driven to rotate, the mechanism support 120 can drive the pin shaft 1111 in the arc-shaped grooves 1232a to move, such that the pin shaft 1111 drives the first connecting bar 111 to rotate, and then the first connecting bar 111 drives the first four-bar linkage mechanism 110 to move to be opened or closed, as shown in FIGS. 9 and 12.

[0134] As shown in FIGS. 5 and 10, optionally, the action mechanism further includes an energy storage member 125, the energy storage member 125 is disposed between the first connecting bar 111 and the second vertical plates 1232, and the energy storage member 125 is capable of storing energy when the mechanism support 120 drives the first four-bar linkage mechanism 110 to be closed and releasing energy when the first four-bar linkage mechanism 110 is opened.

[0135] That is, in the process that the mechanism support 120 rotates to drive the first four-bar linkage mechanism 110 to be closed, the energy storage member 125 can store energy; when the first four-bar linkage mechanism 110 rotates to a closed position, the energy storage member 125 completes energy storage; when the first four-bar linkage mechanism 110 needs to be opened, an energy storage mechanism can release energy to enable the first four-bar linkage mechanism 110 to be opened quickly. Therefore, the breaking speed of the isolating switch 800 can be improved, and the breaking performance of the isolating switch 800 is improved.

[0136] Exemplarily, as shown in FIGS. 5 and 10, the above-mentioned energy storage member 125 is an energy storage spring, and a fixed end of the energy storage spring is connected to the second vertical plates 1232, and an energy storage end of the energy storage spring is connected to the first connecting bar 111. Therefore, when opening is needed, the energy storage spring can quickly drive the first connecting bar 111 to rotate, such that the first connecting bar 111 drives the first four-bar linkage mechanism 110 to be opened quickly.

[0137] In the present embodiment, the energy storage spring is specifically double torsional springs disposed symmetrically (as shown in FIG. 5), two opposite ends (i.e. the above-mentioned fixed end) of the double torsional springs are respectively fixed on the two second vertical plates 1232, and middle ends (i.e. the above-mentioned energy storage end) of the double torsional springs are abutted with the first connecting bar 111.

[0138] In addition, as shown in FIGS. 5 and 9, in order to make the transmission of the first four-bar linkage mechanism 110 more stable, in the present embodiment, one ends of the two second vertical plates 1232 away from the first vertical plates 1231 extend toward a direction away from the first vertical plates 1231 to form extension plates 1234; along the rotation axis direction of the mechanism support 120, orthographic projections of the extension plates 1234 on the switch body 300 at least cover a part of the first four-bar linkage mechanism 110.

[0139] That is, the extension plates 1234 are formed by one ends of the second vertical plates 1232 away from the first vertical plates 1231 extending toward the direction the direction away from the first vertical plates 1231, and in the present embodiment, each second vertical plate 1232 and the corresponding extension plate 1234 are an integrated part. The second vertical plates 1232 extend downward in the present disclosure in order to make the orthographic projections of the extension plates 1234 on the switch body 300 at least partially cover a part of the first four-bar linkage mechanism 110 in the rotation axis direction of the mechanism support 120, such that the two extension plates 1234 symmetrically disposed can limit the first four-bar linkage mechanism 110 therebetween, so as to limit the axial movement of the first four-bar linkage mechanism 110 to a certain extent, thereby improving the transmission stability of the first four-bar linkage mechanism 110.

[0140] It should be noted that, referring to FIG. 8 in combination, along the rotation axis direction of the mechanism support 120, the orthographic projections of the mounting plates 123 (including the first vertical plates 1231, the linkage plates 1233, the second vertical plates 1232, and the extension plates 1234) on the switch body 300 may cover a part of the first four-bar linkage mechanism 110, or may also cover all of the first four-bar linkage mechanism 110, which is not limited in the present disclosure, and can be determined by those skilled in the art according to the actual structure.

[0141] In a fourth aspect of the embodiments of the present disclosure, referring to FIGS. 6-9, an isolating switch 800 is provided. The isolating switch 800 includes a handle 600, the above-mentioned action mechanism, switch bodies 300, and contact mechanisms 700; the handle 600 is in transmission connection to the action mechanism, and the contact mechanisms 700 are disposed inside the switch bodies 300 and are in transmission connection to the action mechanism; the handle 600 drives the action mechanism to rotate, and can drive the contact mechanisms 700 in the switch bodies 300 to be opened or closed.

[0142] The specific structures of the handle 600, the switch bodies 300, and the contact mechanisms 700 are not limited in the present disclosure, and can be set by those skilled in the art. As long as the handle 600 can drive the action mechanism to rotate, and the contact mechanisms 700 in the switch bodies 300 can be driven to be opened or closed.

[0143] In the present embodiment, the isolating switch 800 further includes an operating mechanism 200, one end of the operating mechanism 200 is in transmission connection to the handle 600, and the other end of the operating mechanism is in transmission connection to a mechanism support 120 of the action mechanism. Thus, opening or closing can be achieved by the following method: the handle 600 drives the operating mechanism 200 to move, the operating mechanism 200 drives the mechanism support 120 of the action mechanism to move, such that the mechanism support 120 drives a first four-bar linkage mechanism 110 to move, and the first four-bar linkage mechanism 110 moves to drive the contact mechanisms 700 located in the switch bodies 300 to move, and thus, the contact mechanisms 700 are opened or closed.

[0144] The specific structure and the beneficial effects of the above-mentioned action mechanism are described in detail in the foregoing, and are not described in the present disclosure again.

[0145] In a fifth aspect of the embodiments of the present disclosure, referring to FIGS. 6 and 12, an isolating switch 800 is provided. The isolating switch 800 includes switch bodies 300, an operating mechanism 200, a handle 600, and the above-mentioned switching mechanism; the switch bodies 300, the operating mechanism 200, the switching mechanism, and the handle 600 are stacked in sequence, and the handle 600 drives the operating mechanism 200 to move through the switching mechanism, such that the operating mechanism 200 drives the switch bodies 300 to be opened or closed.

[0146] In the present embodiment, the switch bodies 300, the operating mechanism 200, the switching mechanism, and the handle 600 are stacked in sequence from bottom to top, as shown in FIGS. 6 and 12.

[0147] The switch bodies 300 are provided with contact mechanisms 700 therein. The above-mentioned operating mechanism 200 adopts an operating mechanism 200 of a molded case circuit breaker, and the switching mechanism is configured to switch an operation mode of the molded case operating mechanism 200 into an operation mode of the isolating switch 800, namely, the switching mechanism is configured to enable the acute-angle rotation of levers 220 of the molded case operating mechanism 200 and the right-angle rotation of the handle 600 of the isolating switch 800 to achieve butt joint adaptation, such that the molded case operating mechanism 200 can be applied to the isolating switch 800.

[0148] It should be noted that a plurality of switch bodies 300 are included, and the plurality of switch bodies 300 are arranged in sequence along a vertical direction shown in FIG. 6. Each switch body includes a plurality of switch units 330 (the contact mechanism 700 is disposed in each switch unit 330), and the plurality of switch units 330 are arranged side by side along a horizontal direction as shown in FIG. 6.

[0149] The handle 600 is in transmission connection to the switching mechanism and configured to drive the switching mechanism to move. The handle 600 drives the switching mechanism to rotate, and the switching mechanism can drive the operating mechanism 200 to move, such that the operating mechanism 200 drives the switch bodies 300 to be opened or closed.

[0150] In a sixth aspect of the embodiments of the present disclosure, referring to FIG. 6, and FIGS. 12-14, a switching mechanism is provided. The switching mechanism includes a handle rotating shaft 410 and a rotation disc 420 connected to the handle rotating shaft 410; a first matching portion 421 is disposed on the rotation disc 420, and the first matching portion 421 is configured to be in driving connection to levers 220 of an operating mechanism 200 of an isolating switch 800; the handle rotating shaft 410 is driven to rotate at an angle equal to or greater than 90° to drive the rotation disc 420 to rotate, and when the rotation disc 420 rotates, the first matching portion 421 drives the levers 220 to swing at an acute angle, such that the operating mechanism 200 is opened or closed. The switching mechanism has a simple structure, and can switch the operation mode of the operating mechanism 200 of the molded case circuit breaker, such that the operating mechanism 200 of the molded case circuit breaker can be applied to the isolating switch 800.

[0151] It should be noted that, firstly, the handle rotating shaft 410 is in transmission connection to a handle 600 of the isolating switch 800, and the handle 600 is driven to rotate to drive the handle rotating shaft 410 to rotate. One end of the handle rotating shaft 410 should be adapted to the handle 600, and the other end should be adapted to the rotation disc 420, such that the handle 600 rotates to drive the handle rotating shaft 410 to rotate, and further drive the rotation disc 420 to rotate through the handle rotating shaft 410.

[0152] The structure of the handle rotating shaft 410 is not particularly limited in the present disclosure, as long as the handle rotating shaft can rotate under the driving of the handle 600, and the rotation of the handle rotating shaft can drive the rotation disc 420 to rotate.

[0153] In addition, the handle rotating shaft 410 and the rotation disc 420 may be two parts and are connected together in a clamping or buckling manner; or, the handle rotating shaft 410 and the rotation disc 420 may be an integrally formed part.

[0154] Secondly, the rotation disc 420 is connected to one end of the handle rotating shaft 410 away from the handle 600, the first matching portion 421 is disposed on the rotation disc 420, and the first matching portion 421 is configured to be in driving connection to the levers 220 of the operating mechanism 200 of the isolating switch 800, such that when the rotation disc 420 rotates, the first matching portion 421 can drive the levers 220 to rotate, and thus, the operating mechanism 200 is opened or closed.

[0155] As shown in FIG. 13, in an embodiment, the above-mentioned rotation disc 420 may be located above the levers 220, such that the rotation disc 420 and the levers 220 are distributed up and down, which can facilitate the volume miniaturization of the isolating switch 800.

[0156] Or, in another embodiment, as shown in FIG. 14, the above-mentioned rotation disc 420 may be located at one side of the levers 220, that is, the rotation disc 420 and the levers 220 are disposed side by side, such that a height of the isolating switch 800 can be reduced to some extent.

[0157] Thirdly, as shown in FIGS. 13 and 14, the above-mentioned operating mechanism 200 is a molded case operating mechanism 200, and since the specific structure of the molded case operating mechanism 200 is well known to those skilled in the art, the detailed description is omitted in the present disclosure.

[0158] Fourthly, in the present embodiment, the handle rotating shaft 410 rotates at an angle equal to or greater than 90°, and the above-mentioned lever 220 swings at an acute angle (i.e., the swing angle of the levers 220 between the open position and the closed position is an acute angle, as shown in FIG. 15). The arrangement of the switching structure provided by the present disclosure can achieve butt joint adaptation of large-angle rotation of the handle rotating shaft 410 and small-angle swing of the levers 220.

[0159] In summary, the switching mechanism provided by the present disclosure includes the handle rotating shaft 410 and the rotation disc 420 connected to the handle rotating shaft 410; the first matching portion 421 is disposed on the rotation disc 420, and the first matching portion 421 is configured to be in driving connection to the levers 220 of the operating mechanism 200 of the isolating switch 800; the handle rotating shaft 410 is driven to rotate at an angle equal to or greater than 90° to drive the rotation disc 420 to rotate, and when the rotation disc 420 rotates, the first matching portion 421 drives the levers 220 to swing at an acute angle, such that the operating mechanism 200 is opened or closed. According to the present disclosure, the switching mechanism is provided, and the corresponding first matching portion 421 is disposed on the rotation disc 420 of the switching mechanism, such that when the handle rotating shaft 410 is driven to rotate at an angle equal to or greater than 90°, the handle rotating shaft 410 drives the rotation disc 420 to rotate, the first matching portion 421 on the rotation disc 420 can drive the levers 220 to swing at an acute angle, and thus, the operating mechanism 200 is opened or closed. According to the present disclosure, the operating mechanism 200 of the isolating switch 800 and the handle 600 of the isolating switch 800 are connected through the switching mechanism, and the butt joint adaptation of the rotating mode of the operating mechanism 200 and the rotating mode of the handle 600 can be achieved, such that the operating mechanism 200 can be stably and reliably applied to the isolating switch 800, the switching mechanism has a simple structure, and a switching mode for switching the operating mode of the operating mechanism 200 of the molded case circuit breaker is simple.

[0160] Referring to FIGS. 12, 13 and 18, optionally, the switching mechanism further includes a sliding plate 430 between the rotation disc 420 and the levers 220; the sliding plate 430 is slidably configured on a housing 500 of the isolating switch 800 and is respectively in transmission connection to the first matching portion 421 and the levers 220; a sliding direction of the sliding plate 430 is perpendicular to an axis of the handle rotating shaft 410; the rotation disc 420 rotates to drive the sliding plate 430 to slide on the housing 500, and the levers 220 can be driven to swing.

[0161] The above-mentioned sliding plate 430 is disposed between the rotation disc 420 and the levers 220, one side of the sliding plate 430 is in transmission connection to the rotation disc 420, and the other side is in transmission connection to the levers 220. Thus, the rotation of the rotation disc 420 can be transmitted to the levers 220 through the sliding plate 430 to swing the levers 220.

[0162] In the present embodiment, the sliding direction of the sliding plate 430 is parallel to a plane where the rotation disc 420 is located and perpendicular to the axis of the handle rotating shaft 410. That is, the rotation disc 420 rotates, the first matching portion 421 can drive the sliding plate 430 to move linearly on the housing 500, and the linear movement of the sliding plate 430 can drive the levers 220 to swing.

[0163] In the present embodiment, a swing plane of the levers 220 is perpendicular to the sliding direction of the sliding plate 430.

[0164] The rotation disc 420 is driven to rotate with the handle rotating shaft 410 as a center on a first plane, the sliding plate 430 is driven to move linearly along a first direction, and a linear movement of the sliding plate 430 drives the levers 220 to swing on a second plane; the first plane is the plane where the rotation disc 420 is located, and the second plane is perpendicular to the first plane; the first direction is parallel to the first plane and perpendicular to the second plane.

[0165] Corresponding to FIGS. 6 and 12, the above-mentioned first direction is a horizontal direction, the first plane is a horizontal plane, and the second plane is a vertical plane.

[0166] In the present embodiment, a sliding distance of the sliding plate 430 in the first direction is equal to a first distance of the levers 220; the first distance is a movement distance of an end of the levers 220 connected to the sliding plate 430 along the first direction.

[0167] To more clearly understand the feature that the sliding distance of the sliding plate 430 in the first direction is equal to the first distance of the levers 220, referring to FIGS. 15 and 16, when the sliding plate 430 slides from a first position to a second position, a rotation angle of the levers 220 is θ 3 , the movement distance of the end of the levers 220 connected to the sliding plate 430 along the first direction is L 1 , a rotation angle of the first matching portion 421 is θ 4 , and a movement distance of the first matching portion 421 along the first direction is L 2 ; the first position and the second position are an open position and a closed position, respectively, L 1 = L 2 , and the first direction is the sliding direction of the sliding plate 430.

[0168] It should be noted that the above-mentioned first position may be an open position, and the second position is a closed position; or, the above-mentioned first position is a closed position, and the second position is an open position.

[0169] When the handle rotating shaft 410 is driven to rotate to switch the isolating switch 800 between the closed position and the open position, as shown in FIG. 16, the corresponding rotation angle of the first matching portion 421 on the rotation disc 420 is θ 4 , and the movement distance of the first matching portion 421 along the first direction is L 2 ; at this time, correspondingly, as shown in FIG. 15, the rotation angle of the levers 220 is θ 3 , and the movement distance of the end of the levers 220 connected to the sliding plate 430 along the first direction is L 1 .

[0170] Since the movement distance of the end of the levers 220 connected to the sliding plate 430 along the first direction and the movement distance of the first matching portion 421 along the first direction are both the same as the sliding distance of the sliding plate 430, L 1 = L 2 . Thus, according to the above-mentioned relationship, it is possible to switch between the rotation angle of the levers 220 of the operating mechanism 200 and the rotation angle (i.e., the rotation angle of the handle 600 of the isolating switch 800) of the handle rotating shaft 410.

[0171] In the present embodiment, the sliding plate 430 is a switching medium, θ 4 = 90° in the isolating switch 800, the rotation angle θ 3 < 90° (about 40°) of the levers 220 in the operating mechanism 200, and different angles and spatial positions can be switched.

[0172] As shown in FIG. 13, optionally, the sliding plate 430 is provided with a first limiting portion 431, and the first limiting portion 431 is in transmission connection to the first matching portion 421; the handle rotating shaft 410 is driven to rotate to drive the rotation disc 420 to rotate, and when the rotation disc 420 rotates, the first matching portion 421 acts on the first limiting portion 431 to enable the sliding plate 430 to slide on the housing 500.

[0173] The specific structural forms of the first matching portion 421 and the first limiting portion 431 are not limited in the present disclosure, and can be set by those skilled in the art by themselves according to requirements as long as the rotation of the rotation disc 420 can drive the first matching portion 421 to act on the first limiting portion 431, such that the sliding plate 430 slides on the housing 500.

[0174] Exemplarily, the above-mentioned first matching portion 421 is a kidney-shaped groove or a U-shaped groove (FIG. 13 exemplifies a U-shaped groove), and the first limiting portion 431 is a protrusion structure protruding toward the rotation disc 420. Of course, the structure of the first matching portion 421 and the structure of the first limiting portion 431 may be interchanged, that is, the first matching portion 421 is a protrusion structure protruding toward the sliding plate 430, and the first limiting portion 431 is a kidney-shaped groove or a U-shaped groove.

[0175] As shown in FIG. 18, optionally, connectors 422 are disposed on one side of the sliding plate 430 back away from the rotation disc 420, the connectors 422 are provided with second matching portions 4221, second limiting portions 221 are disposed on one side of the levers 220 close to the connectors 422, and the second limiting portions 221 are in transmission connection to the second matching portions 4221; the sliding plate 430 is driven to slide on the housing 500, and the second matching portions 4221 can act on the second limiting portions 221 to enable the levers 220 to swing.

[0176] Two connectors 422 may be provided, the two connectors 422 are both disposed on one side of the sliding plate 430 back away from the rotation disc 420, and the two connectors 422 are respectively disposed at two opposite ends of the sliding plate 430.

[0177] The second limiting portions 221 are disposed on one sides of the levers 220 close to the connectors 422, and the second limiting portions 221 are configured to be in transmission connection to the second matching portions 4221.

[0178] Optionally, the second matching portions 4221 are kidney-shaped grooves or U-shaped grooves (FIG. 18 exemplifies the second matching portions 4221 as U-shaped grooves), and the second limiting portions 221 are a connecting shaft 234 disposed on the levers 220.

[0179] It should be noted that firstly, the structural forms of the second matching portions 4221 and the second limiting portions 221 can be interchanged, that is, the second matching portions may be the connecting shaft 234 disposed on the connectors 422, and the second limiting portions 221 may be the kidney-shaped grooves or the U-shaped groove formed on the levers 220.

[0180] Secondly, the connecting shaft 234 may be a whole shaft penetrating through the levers 220 as shown in FIG. 18, or may be protrusions protruding from the sides of the levers 220 as shown in FIG. 17.

[0181] Thirdly, according to the present disclosure, the second matching portions 4221 are provided as the kidney-shaped grooves or the U-shaped grooves in order to prevent the linear movement of the sliding plate 430 and the swing of the levers 220 from being affected.

[0182] Further, in order to make the sliding plate 430 slide on the housing 500 more stably, optionally, referring to FIG. 13, the switching mechanism further includes guide rods 440 fixed on the housing 500 of the isolating switch 800, the sliding plate 430 is provided with guide holes 432 adapted to the guide rods 440, and the sliding plate 430 is disposed on the guide rods 440 through the guide holes 432 in a penetrating manner and can slide on the guide rods 440.

[0183] As shown in FIG. 13, two guide rods 440 may be provided, and the two guide rods 440 are spaced apart from each other on the housing 500. Thus, the sliding of the sliding plate 430 can be made more stable.

[0184] Optionally, a rotation axis of the handle rotating shaft 410 is perpendicular to a rotation axis of the levers 220, the rotation axis of the handle rotating shaft 410 is located within a range of a first projection of the levers 220, and the first projection is an orthographic projection of a swing region of the levers 220 between an open position and a closed position along an axis direction of the handle rotating shaft 410.

[0185] The rotation axis of the handle rotating shaft 410 may be located between two bent arm plates of the levers 220. The rotation axis of the handle rotating shaft 410 is located within the range of the first projection, such that the operation force of the isolating switch 800 can be centered, and the operation of the mechanism is more stable and reliable.

[0186] In a seventh aspect of the embodiments of the present disclosure, referring to FIGS. 19 and 20, a connecting bar mechanism 230 is provided. The connecting bar mechanism includes an action assembly and a test assembly, the action assembly includes a release member 231, the release member 231 moves along a preset direction to drive the action assembly to complete an opening action, the test assembly is disposed inside a housing 500, a driving surface 2322 of the test assembly is exposed out of the housing 500, and the test assembly is driven to directly or indirectly act on the release member 231 so as to drive the release member 231 to move along the preset direction.

[0187] Referring to FIG. 24 in combination, the connecting bar mechanism 230 is mounted inside the housing 500 of the isolating switch 800, and includes the action assembly and the test assembly, where the action assembly can drive movable contact assemblies 710 of the isolating switch 800 to rotate through the opening-closing (opening and closing) actions of the action assembly, so as to complete the opening and closing operation of the isolating switch 800; the action assembly includes the release member 231, and the release member 231 moves along the preset direction, such that the action assembly can complete the opening operation. The test assembly is provided with the driving surface 2322, and the driving surface 2322 is exposed from the housing 500; a worker can touch the driving surface 2322 outside the housing 500, and apply an acting force to the driving surface 2322 to drive the test assembly to move, and after the test assembly is driven to move, the release member 231 can be directly or indirectly driven to move along the preset direction, such that the action assembly completes the opening operation.

[0188] It should be noted that the driving surface 2322 being exposed from the housing 500 means that: the driving surface 2322 is visible and accessible from the exterior of the housing 500, and is not limited by the present embodiment as to whether the driving surface 2322 is located outside the housing 500, inside the housing 500, or embedded in a sidewall of the housing 500.

[0189] The above-mentioned connecting bar mechanism 230 is provided with the test assembly linked with the action assembly, and the release member 231 of the action assembly can be indirectly driven to move by driving the test assembly outside the housing 500, such that whether the action assembly can be smoothly opened or not can be used for testing the remote release function. The connecting bar mechanism 230 has increased the test assembly inside the isolating switch 800 for the first time, the remote release test can be achieved only by adding one test assembly, the structure is simple, and operation is easy and convenient in the test process.

[0190] Referring to FIG. 21, optionally, in one implementation of the embodiments of the present disclosure, the test assembly is embedded into a test through hole of the housing 500, the driving surface 2322 is flush with an outer surface of the housing 500, or, the driving surface 2322 is located inside the test through hole.

[0191] The driving surface 2322 does not protrude from the housing 500, such that the surface of the housing 500 can be kept flat and beautiful, the mounting space required by the housing 500 cannot be increased, the housing 500 can be used for protecting the test assembly, and the opening of the action assembly caused by misoperation can be avoided.

[0192] Referring to FIGS. 19-21, optionally, in one implementation of the embodiments of the present disclosure, the test assembly includes a test button 232, the test button 232 includes a pressing portion 2321 and a linkage portion 2323 connected to the pressing portion 2321, the pressing portion 2321 is embedded in the test through hole of the housing 500 and can move in the test through hole, and the linkage portion 2323 is connected to the release member 231.

[0193] The sidewall of the housing 500 is provided with the test through hole for mounting the test button 232, and the test button 232 includes the pressing portion 2321 and the linkage portion 2323 connected to each other. The linkage portion 2323 is mounted in the housing 500 and in driving connection to the release member 231; the pressing portion 2321 is at least partially embedded into the test through hole, the driving surface 2322 is located on the pressing portion 2321, the test through hole exposes the driving surface 2322, and the worker pushes the pressing portion 2321 by using a tool outside the housing 500, such that the release member 231 is driven through the linkage portion 2323 to move along the preset direction, thereby enabling the action assembly to complete the opening operation.

[0194] Optionally, in one implementation of the embodiments of the present disclosure, the test assembly reciprocates linearly within the housing 500, and the release member 231 reciprocates rotationally within the housing 500.

[0195] The test assembly is rotatably connected to the release member 231, the test assembly is pressed, the test assembly slides along a straight line and moves toward the inside of the housing 500, the release member 231 is driven to rotate along the preset direction, and therefore the action assembly completes the opening action. The implementation structure for the above-mentioned motion mode is simple and small in size, and is beneficial to the test and miniaturization design of the connecting bar mechanism 230.

[0196] Exemplarily, the test assembly includes the test button 232, the test button 232 includes the pressing portion 2321 and the linkage portion 2323, the pressing portion 2321 is vertically connected to the middle position of the linkage portion 2323, and the linkage portion 2323 is rotatably connected to the release member 231; when the worker pushes the pressing portion 2321 by using the tool, the stress on the linkage portion 2323 may be more balanced; the pressing portion 2321 is matched with the test through hole, and the size of the test through hole is equal to or slightly greater than that of the pressing portion 2321, such that the test through hole can limit and guide the movement of the pressing portion 2321.

[0197] Optionally, a release assembly 233 is further included, and the release assembly 233 is released to directly or indirectly act on the release member 231 so as to drive the release member 231 to move along the preset direction.

[0198] The release assembly 233 is configured to drive the release member 231 to move along the preset direction in a release manner when remote opening is needed, so as to drive the action assembly to complete the opening action; it can be understood that the release assembly 233 and the test assembly can both drive the release member 231 to move along the preset direction, and the release assembly 233 and the test assembly are triggered in parallel without mutual influence. After the release assembly 233 and the test assembly drive the action assembly to be opened, the manual closing of the action assembly is not limited.

[0199] Optionally, in one implementation of the embodiments of the present disclosure, the test assembly is rotatably connected to the release member 231 through a connecting shaft 234, and the release assembly 233 indirectly acts on the release member 231 through the connecting shaft 234.

[0200] Exemplarily, the release member 231 is provided with a mounting space for accommodating the test assembly, the test assembly is hollow and located in the mounting space, and the connecting shaft 234 penetrates through the release member 231 and the test assembly to rotatably connect the release member to the test assembly. Furthermore, one end of the connecting shaft 234 is provided with a connecting cap 2341, and a diameter of the connecting cap 2341 is greater than that of the connecting shaft 234, so as to prevent the connecting shaft 234 from falling off. The release assembly 233 indirectly drives the release member 231 by driving the connecting shaft 234. Through the arrangement, the connecting shaft 234 may be lengthened to dispose the release assembly 233 at a side of the release member 231, so as to prevent interference between the release assembly 233 and the test assembly.

[0201] Referring to FIGS. 19, 10 and 22, optionally, in one implementation of the embodiments of the present disclosure, the release assembly 233 includes a release 2331 and a driving member 2333 connected to the release 2331, and the release 2331 is energized to drive the driving member 2333 to move toward the release member 231 so as to drive the release member 231 to move along the preset direction.

[0202] After the release 2331 is energized, a striking member 2332 can be knocked out under the action of magnetic force, the driving member 2333 is connected to the striking member 2332, and the striking member 2332 is knocked out to drive the driving member 2333 to move. The driving member 2333 may directly drive the release member 231 to move or may indirectly drive the release member 231 to move. The driving member 2333 can drive the release member 231 to move along the preset direction during the movement, such that the action assembly can complete the opening operation.

[0203] Optionally, in one implementation of the embodiments of the present disclosure, the driving member 2333 is provided with a first working face 2334 and a second working face 2335, the first working face 2334 is connected to the release 2331, and the second working face 2335 is configured to drive the release member 231 to move along the preset direction. The first working face 2334 is configured to be connected to the release 2331 and the second working face 2335 is configured to strike the release member 231. The separation of the two working faces can facilitate the control over the driving member 2333.

[0204] Optionally, in one implementation of the embodiments of the present disclosure, the second working face 2335 is parallel to the first working face 2334, and the second working face 2335 is perpendicular to a knockout direction (F2 direction in the figure) of the release 2331.

[0205] The two parallel working faces make movement directions of the two working faces be consistent, and the two working faces are both perpendicular to the knockout direction of the release 2331, such that the release 2331 can conveniently control the driving member 2333, and the driving member 2333 forward drives the release member 231 to move.

[0206] Exemplarily, the release member 231 is connected to the test assembly through the connecting shaft 234, the release assembly 233 is located at a side of the release member 231, and an end portion of the connecting shaft 234 extends to the driving member 2333 of the release member 233. When the action assembly is in a closed state and the release 2331 is not energized, a striking surface of the driving member 2333 is just abutted against or spaced from the connecting shaft 234 by a preset distance, the driving member 2333 moves, and the striking surface is in contact with the connecting shaft 234 to push the connecting shaft 234 to move so as to drive the release member 231 to move. Furthermore, the connecting shaft 234 is located between the first working face 2334 and the second working face 2335 so as to drive the release member 231 to move by using a space between the first working face 2334 and the second working face 2335, thereby reducing the volume of the connecting bar mechanism 230.

[0207] Referring to FIGS. 19, 20 and 23, optionally, in one implementation of the embodiments of the present disclosure, the release member 231 is rotatably disposed inside the housing 500 through a rotating shaft 235, a reset member 236 (e.g., a torsion spring) is disposed on the rotating shaft 235, and the reset member 236 is connected to the release member 231. When the release member 231 is driven to rotate through the test assembly or the release assembly 233, the reset member 236 is deformed to store energy, after the driving force disappears, the reset member 236 restores to release energy, and the release member 231 drives the test assembly to reset together.

[0208] Optionally, in one implementation of the embodiments of the present disclosure, the action assembly further includes a latch plate 237 and a trip latch member 238 rotatably disposed inside the housing 500, a rotation axis 235 of the release member 231 is located between a rotation axis 235 of the latch plate 237 and the test button 232, the test button 232 is located on a side of the latch plate 237 away from the trip latch member 238, and the rotation axes 235 of the release member 231, the latch plate 237, and the trip latch member 238 are parallel to each other.

[0209] In the view of FIG. 20, the test button 232 is pressed, the release member 231 rotates clockwise, an abutting portion 2311 of the release member 231 slides along the surface of the latch plate 237 and then is clamped into a first limiting groove 2371 of the latch plate 237, and in the process, the latch plate 237 rotates anticlockwise. The latch plate 237 is further provided with a second limiting groove 2372, a limiting portion 2381 of the trip latch member 238 is clamped into the second limiting groove 2372 and locked with the latch plate 237, the trip latch member 238 has a clockwise rotation trend, when the latch plate 237 rotates anticlockwise, the limiting portion 2381 of the trip latch member 238 is separated from the second limiting groove 2372 of the latch plate 237, the trip latch member 238 is unlocked with the latch plate 237, and the action assembly completes the opening action.

[0210] In an eighth aspect of the embodiments of the present disclosure, referring to FIGS. 6, 21, and 24, an isolating switch 800 is provided. The isolating switch includes: a housing 500, a handle 600 disposed on the housing 500, any one of the above-mentioned connecting bar mechanisms 230, and switch units 330; the handle 600, an action assembly of a connecting bar mechanism 230, and movable contact assemblies 710 of the switch units 330 are in driving connection in sequence.

[0211] The handle 600 is rotated to manually drive the action assembly to complete the opening and closing action, and then the action assembly directly or indirectly drives the movable contact assemblies 710 in the switch units 330 to be separated from or in contact with stationary contacts, so as to achieve the manual opening and closing of the isolating switch 800.

[0212] After being driven, a test assembly in the connecting bar mechanism 230 can directly or indirectly act on a release member 231 to drive the release member 231 to move along a preset direction, and can also drive the action assembly to complete the opening and closing action, thereby achieving a remote release test on the isolating switch 800.

[0213] The isolating switch 800 has the same structure and beneficial effects as the connecting bar mechanism 230 in the above-mentioned embodiments. The structure and beneficial effects of the connecting bar mechanism 230 have been described in detail in the above-mentioned embodiments, and are not described in detail herein.

[0214] In a ninth aspect of the embodiments of the present disclosure, referring to FIGS. 6 and 25 in combination, an isolating switch 800 is provided. The isolating switch includes a switch body 300, a handle 600, and an operating mechanism 200, the operating mechanism 200 includes a housing 500, and a connecting bar mechanism 230 and a remote release mechanism which are disposed inside the housing 500, the switch body 300, the operating mechanism 200, and the handle 600 are stacked in sequence, and the handle 600 drives the switch body 300 to be opened or closed through the operating mechanism 200. The remote release mechanism can reasonably set the mounting position and the working mode of a release 2331, such that the isolating switch 800 can achieve the remote release function.

[0215] Exemplarily, as shown in FIG. 6, in the present embodiment, the switch body 300, the operating mechanism 200, and the handle 600 are stacked in sequence from bottom to top, where a plurality of switch bodies 300 may be provided. It should be noted that the mounting positions indicated by "bottom" and "top" herein are simply described based on the orientation relationship shown in FIG. 6, and do not serve a specific limiting role.

[0216] Referring to FIG. 9 in combination, contact mechanisms 700 are disposed in the switch bodies 300, and the handle 600 is in transmission connection to the operating mechanism 200 for driving the operating mechanism 200 to move. The handle 600 drives the contact mechanisms 700 in the bodies to perform the opening and closing operation through the operating mechanism 200, so as to correspondingly achieve the connection or disconnection between the isolating switch 800 and a load line. With respect to the specific structure of the contact mechanisms 700, those skilled in the art should be able to make a reasonable choice and design according to practical situations with reference to the isolating switch 800 in the prior art, which will not be particularly limited.

[0217] In a tenth aspect of the embodiments of the present disclosure, as shown in FIGS. 25-30, a remote release mechanism is provided. The remote release mechanism includes a release 2331 and a driving member 2333 which are disposed inside a housing 500 of an operating mechanism 200 of an isolating switch 800 and mounted on one side of a connecting bar mechanism 230 of the operating mechanism 200, the driving member 2333 is in abutting contact with the connecting bar mechanism 230, the release 2331 includes a fixed portion 2336 and a slidable striking member 2332, and when the release 2331 receives a breaking signal sent by a controller, the striking member 2332 slides out relative to the fixed portion 2336 and drives the connecting bar mechanism 230 to be unlocked and opened through the driving member 2333.

[0218] It should be noted that, as shown in FIG. 25, the remote release mechanism includes a release 2331 and a driving member 2333, and the housing 500 of the operating mechanism 200 can provide a mounting base for the release 2331, the driving member 2333, and the connecting bar mechanism 230 and can play a protection role. As shown in FIGS. 26, 27, and 29, in the three accompanying drawings, the housing 500 is purposely hidden and shown from view in three different orientations to facilitate an understanding of the positional and assembly relationships of the release 2331, the driving member 2333, and the connecting bar mechanism 230.

[0219] As shown in FIGS. 26, 27, and 29, the driving member 2333 is in abutting contact with the connecting bar mechanism 230 to drive the connecting bar mechanism 230 to move through the driving member 2333, such that the connecting bar mechanism 230 is unlocked, and then the isolating switch 800 is opened. Exemplarily, as shown in FIGS. 26, 27, and 29, the driving member 2333 is provided with an abutting arm 2337, the connecting bar mechanism 230 includes a connecting shaft 234, and the abutting arm 2337 of the driving member 2333 is in abutting contact with the connecting shaft 234 of the connecting bar mechanism 230, such that the driving member 2333 can drive the connecting bar mechanism 230 to move synchronously.

[0220] As shown in FIG. 28, the release 2331 includes the fixed portion 2336 and the slidable striking member 2332, when the release 2331 receives the breaking signal sent by the controller, the striking member 2332 can slide out relative to the fixed portion 2336; moreover, during the sliding out of the striking member 2332, the striking member 2332 can drive the driving member 2333 to slide relative to the housing 500, such that the connecting shaft 234 of the connecting bar mechanism 230 is driven through the abutting arm 2337 of the driving member 2333 to rotate relative to the housing 500 to achieve unlocking, thereby achieving the opening operation of the isolating switch 800.

[0221] It is worth noting that, regarding the specific principle and operation process of the connecting shaft 234 of the connecting bar mechanism 230 rotating relative to the housing 500 to achieve unlocking, those skilled in the art should be able to understand with reference to the release process of the connecting bar mechanism 230 of the molded case circuit breaker in the prior art, which will not be described in detail herein.

[0222] As shown in FIGS. 26 and 27, the release 2331 and the driving member 2333 are disposed at one side of the connecting bar mechanism 230, such that on the one hand, the miniaturization of the operating mechanism 200 is convenient to achieve, and on the other hand, the knockout direction of the striking member 2332 is conveniently made to be the same as the unlocking direction of the connecting bar mechanism 230, thereby contributing to improvement of stability of the release 2331, and thus ensuring that the isolating switch 800 can be released in case of a fault and prevented from being released in case of no fault.

[0223] As described above, the remote release mechanism includes the release 2331 and the driving member 2333 which are disposed inside the housing 500 of the operating mechanism 200 of the isolating switch 800 and mounted on one side of the connecting bar mechanism 230 of the operating mechanism 200, the driving member 2333 is in abutting contact with the connecting bar mechanism 230, the release 2331 includes the fixed portion 2336 and the slidable striking member 2332, and when the release 2331 receives the breaking signal sent by the controller, the striking member 2332 slides out relative to the fixed portion 2336 and drives the connecting bar mechanism 230 to be unlocked and opened through the driving member 2333. Compared with the prior art, the remote release mechanism provided by the present disclosure does not add new parts, and the mounting position and the operation mode of the release 2331 are reasonably set on the basis of existing parts, such that the isolating switch 800 can achieve the remote release function, the miniaturization of the isolating switch 800 can be achieved, the stability of the release 2331 can be improved, and it is ensured that the isolating switch 800 is released in case of a fault and prevented from being released in case of no fault.

[0224] Optionally, as shown in FIG. 29, the striking member 2332 is connected to the driving member 2333, such that the striking member 2332 can drive the driving member 2333 to slide synchronously. Exemplarily, in the present embodiment, the striking member 2332 is fixedly connected to the driving member 2333, such that in the actual assembling process, the release 2331 and the driving member 2333 can be assembled first, and then the whole formed by the release 2331 and the driving member 2333 is assembled in the housing 500, thereby simplifying the mounting process. Of course, in other embodiments, the striking member 2332 and the driving member 2333 may be directly formed by an integral molding process, so as to further simplify the mounting steps of the remote release mechanism.

[0225] Exemplarily, as shown in FIG. 29, in the present embodiment, the release 2331 is a magnetic flux release, the magnetic flux release is electrically connected to the controller, and the magnetic flux release is configured to receive the breaking signal sent by the controller. Of course, in other embodiments, the release 2331 may also be a shunt release, and those skilled in the art should be able to make a reasonable choice and design according to the actual situations, which will not be particularly limited.

[0226] As shown in FIGS. 25, 26, 29, and 30, the remote release mechanism further includes a sliding plate 430 slidably connected in the housing 500, a pushing portion 433 is disposed on the sliding plate 430, the pushing portion 433 is disposed on one side of the striking member 2332 back away from the fixed portion 2336, and the pushing portion 433 is configured to push the striking member 2332 to reset.

[0227] It should be noted that, in order to ensure that the isolating switch 800 can be released at the next fault, after the release function of the release 2331 is achieved, the release 2331 is reset, that is, the striking member 2332 slides to retract relative to the fixed portion 2336. Therefore, as shown in FIGS. 25 and 29, in the present embodiment, the remote release mechanism further includes the sliding plate 430, the sliding plate 430 can slide relative to the housing 500, the sliding plate 430 is provided with the pushing portion 433, the pushing portion 433 is disposed on a side of the striking member 2332 back away from the fixed portion 2336, after the striking member 2332 slides out towards the side back away from the fixed portion 2336, the sliding plate 430 slides relative to the housing 500, and the striking member 2332 can be pushed through the pushing portion 433 to slide and reset towards a side close to the fixed portion 2336.

[0228] As shown in FIG. 29, the sliding plate 430 has two operating states to correspond to the opening and closing of the body, respectively. When the striking member 2332 is in the knockout state, the sliding plate 430 slides relative to the housing 500 to switch the sliding plate 430 from a first state to a second state, when the sliding plate 430 starts to move, the pushing portion 433 of the sliding plate 430 is not yet in contact with the striking member 2332, and as the sliding plate 430 continues to move until the sliding plate 430 moves by the movement distance L 3 , the pushing portion 433 of the sliding plate 430 can be in contact with the striking member 2332, such that the striking member 2332 is driven through the pushing portion 433 to slide and reset towards the side close to the fixed portion 2336. When the striking member 2332 is in the reset state, the sliding plate 430 slides relative to the housing 500 so as to switch the sliding plate 430 from the first state to the second state, and at this time, the pushing portion 433 of the sliding plate 430 is not in contact with the striking member 2332 until the sliding plate 430 moves by the maximum stroke, so as to prevent the release 2331 from affecting the movement of the sliding plate 430.

[0229] In the present embodiment, as shown in FIG. 25, the pushing portion 433 is located on a left side of the striking member 2332. Therefore, in the above process, the sliding direction of the sliding plate 430 is the same as the knockout direction of the striking member 2332, and the contact surface of the pushing portion 433 in contact with the striking member 2332 is perpendicular to the knockout axis of the striking member 2332, such that the pushing force direction of the pushing portion 433 acting on the striking member 2332 is the same as the sliding direction of the striking member 2332 (preferably, both are on the same axis), and moreover, the contact area of the pushing portion 433 and the striking member 2332 can be increased, which is conducive to improving the stability and prolonging the service life of the release 2331.

[0230] Of course, in other embodiments, the sliding direction of the sliding plate 430 may be opposite to the knockout direction of the striking member 2332, and the pushing portion 433 can push the striking member 2332 to reset in the above process, which only needs to mount the release 2331 and the driving member 2333 shown in FIG. 25 in a reversed manner (i.e., horizontally turned by 180°), and adjust the actual position of the pushing portion 433 until the pushing portion 433 is located on a right side of the striking member 2332.

[0231] As shown in FIGS. 25, 26, 29, and 30, the remote release mechanism further includes a guide rod 440 fixedly connected in the housing 500, the sliding plate 430 is provided with a guide hole 432, the sliding plate 430 is disposed on the guide rod 440 through the guide hole 432 in a penetrating manner, such that the sliding plate 430 is slidably connected to the guide rod 440, the sliding plate 430 can slide relative to the housing 500, and the guide rod 440 can also play a role in guiding and limiting the sliding of the sliding plate 430. Exemplarily, a quantity of guide rods 440 is two, and the two guide rods 440 are parallel to each other and spaced apart from each other, such that the sliding plate 430 can slide more stably.

[0232] The above are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure can be modified and varied. Any modification, equivalent replacement, improvement, and the like made within the spirit and principle of the present disclosure shall all fall within the protection scope of the present disclosure.

[0233] In addition, it should be noted that, the various specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction, and various possible combinations are not explained in the present disclosure in order to avoid unnecessary repetition.

Claims

1. A transmission mechanism, characterized by comprising a first four-bar linkage mechanism (110), wherein the first four-bar linkage mechanism (110) is configured to be connected between an operating mechanism rotating shaft (210) and a body rotating shaft (310), and the operating mechanism rotating shaft (210) drives the body rotating shaft (310) to synchronously rotate through the first four-bar linkage mechanism (110) so as to enable a switch body (300) to be opened or closed; and a rotation angle (θ1) of the operating mechanism rotating shaft (210) is less than a rotation angle (θ2) of the body rotating shaft (310).

2. The transmission mechanism according to claim 1, characterized in that the first four-bar linkage mechanism (110) is disposed inside the switch body (300), and an operating mechanism (200) is connected to the first four-bar linkage mechanism (110) through a mechanism support (120); and a part of the mechanism support (120) extends into the switch body (300), such that projections of the mechanism support (120) and the first four-bar linkage mechanism (110) along an axis direction of the body rotating shaft (310) partially overlap the switch body (300).

3. The transmission mechanism according to claim 2, characterized in that the first four-bar linkage mechanism (110) comprises a first connecting bar (111), a second connecting bar (112), a third connecting bar (113), and a fourth connecting bar which are connected in sequence, the first connecting bar (111) is connected to the operating mechanism rotating shaft (210), the third connecting bar (113) is connected to the body rotating shaft (310), and the fourth connecting bar is a virtual connecting bar connecting the body rotating shaft (310) to the operating mechanism rotating shaft (210).

4. The transmission mechanism according to claim 3, characterized in that the mechanism support (120) is connected to the first connecting bar (111) through the operating mechanism rotating shaft (210).

5. The transmission mechanism according to claim 1, characterized in that the rotation angle (θ1) of the operating mechanism rotating shaft (210) is 40° to 70°, and the rotation angle (θ2) of the body rotating shaft (310) is 80° to 120°.

6. The transmission mechanism according to any one of claims 1 to 5, characterized in that when a quantity of switch bodies (300) is greater than 1, a plurality of stages of switch bodies (300) are disposed side by side along a first direction (F1), and the body rotating shafts (310) of two adjacent stages of switch bodies (300) are connected through a second four-bar linkage mechanism (320).

7. The transmission mechanism according to claim 6, characterized in that the second four-bar linkage mechanism (320) comprises a fifth connecting bar (321) connected to the body rotating shaft (310) of one stage of switch body (300), a sixth connecting bar (322) connected to the body rotating shaft (310) of a next stage of switch body (300), a seventh connecting bar (323) connected to the fifth connecting bar (321) and the sixth connecting bar (322), and a virtual eighth connecting bar connected between the body rotating shafts (310) of two adjacent stages of switch bodies (300).

8. The transmission mechanism according to claim 7, characterized in that the fifth connecting bar (321) and the sixth connecting bar (322) are disposed in parallel, such that the second four-bar linkage mechanism (320) forms a parallelogram.

9. The transmission mechanism according to claim 6, characterized in that the second connecting bar (112) of the first four-bar linkage mechanism (110) and the seventh connecting bar (323) of the second four-bar linkage mechanism (320) are located on both sides of a connecting line of the body rotating shafts (310) of two stages of switch bodies (300), respectively.

10. The transmission mechanism according to claim 6, characterized in that in the first four-bar linkage mechanism (110) and the second four-bar linkage mechanism (320), two adjacent connecting bars are in transmission connection through a shaft and a hole.

11. The transmission mechanism according to claim 6, characterized in that in the first four-bar linkage mechanism (110) and the second four-bar linkage mechanism (320), two adjacent connecting bars are in clamped connection.

12. An isolating switch (800), characterized by comprising a handle (600), an operating mechanism (200), and at least one stage of switch body (300) which are linked in sequence, wherein the operating mechanism (200) is connected to the switch body (300) through the transmission mechanism as defined in any one of claims 1 to 11.

13. The isolating switch according to claim 12, characterized in that each stage of switch body (300) comprises a plurality of layers of switch units (330) disposed along an axis direction of a body rotating shaft (310), and adjacent switch units (330) are in transmission connection through respective body rotating shafts (310).

14. The isolating switch according to claim 13, characterized in that the body rotating shafts (310) are symmetrically disposed along a first direction, and grooves (311) or bosses are formed at both symmetrical ends of each body rotating shaft (310); the body rotating shafts (310) of two adjacent switch units (330) are connected through cooperation of the groove (311) and the boss which are adjacent; and the plurality of layers of switch units (330) are synchronously driven through respective body rotating shafts (310), an operating mechanism rotating shaft (210) drives the body rotating shafts (310) of one stage of switch body (300) to synchronously rotate through a first four-bar linkage mechanism (110), and each stage of body rotating shaft (310) of a plurality of stages of switch bodies (300) is driven through a second four-bar linkage mechanism (320) to synchronously rotate, such that the isolating switch (800) is opened or closed.

15. An action mechanism, characterized by comprising an action assembly, wherein the action assembly comprises a mechanism support (120) and a first four-bar linkage mechanism (110) which are in transmission connection; the mechanism support (120) is driven to rotate and can drive the first four-bar linkage mechanism (110) to move, such that a contact mechanism (700) in a switch body (300) of an isolating switch (800) is opened or closed; along a rotation axis direction of the mechanism support (120), an orthographic projection of the action assembly on the switch body (300) partially overlaps the switch body (300); and the mechanism support (120) comprises a support main body (121) and a bent portion (122) connected to the support main body (121), and a width of the support main body (121) along the rotation axis direction of the mechanism support (120) is different from a width of the bent portion (122) along the rotation axis direction of the mechanism support (120).

16. The action mechanism according to claim 15, characterized in that along the rotation axis direction of the mechanism support (120), an orthographic projection of the mechanism support (120) on the switch body (300) partially overlaps the switch body (300).

17. The action mechanism according to claim 15 or 16, characterized in that the mechanism support (120) comprises two mounting plates (123) disposed symmetrically and a connecting plate (124) connecting the two mounting plates (123), and each mounting plate (123) comprises a first vertical plate (1231), a second vertical plate (1232), and a linkage plate (1233) connected between the first vertical plate (1231) and the second vertical plate (1232); the two linkage plates (1233) and the two second vertical plates (1232) form the bent portion (122), and the bent portion (122) is located inside the switch body (300); and the two first vertical plates (1231) and the connecting plate (124) form the support main body (121).

18. The action mechanism according to claim 17, characterized in that a distance between the two first vertical plates (1231) is greater than a distance between the two second vertical plates (1232).

19. The action mechanism according to claim 17, characterized in that the second vertical plates (1232) are provided with arc-shaped grooves (1232a), and the arc-shaped grooves (1232a) are configured to limit a rotation angle of the first four-bar linkage mechanism (110).

20. The action mechanism according to claim 19, characterized in that a first connecting bar (111) is disposed between the two second vertical plates (1232), and a rotation center of the first connecting bar (111) is disposed on a rotation shaft of the two second vertical plates (1232); and one end of the first connecting bar (111) is in transmission connection to the first four-bar linkage mechanism (110), the other end of the first connecting bar is provided with a pin shaft (1111), and one end of the pin shaft (1111) extends into the arc-shaped grooves (1232a).

21. The action mechanism according to claim 20, characterized by further comprising an energy storage member (125), wherein the energy storage member (125) is disposed between the first connecting bar (111) and the second vertical plates (1232), and the energy storage member (125) is capable of storing energy when the mechanism support (120) drives the first four-bar linkage mechanism (110) to be closed and releasing energy when the first four-bar linkage mechanism (110) is opened.

22. The action mechanism according to claim 21, characterized in that the energy storage member (125) is double torsional springs disposed symmetrically, two opposite ends of the double torsional springs are respectively fixed on the two second vertical plates (1232), and middle ends of the double torsional springs are abutted with the first connecting bar (111).

23. The action mechanism according to claim 17, characterized in that one ends of the two second vertical plates (1232) away from the first vertical plates (1231) extend toward a direction away from the first vertical plates (1231) to form extension plates (1234); and along the rotation axis direction of the mechanism support (120), orthographic projections of the extension plates (1234) on the switch body (300) at least cover a part of the first four-bar linkage mechanism (110).

24. An isolating switch, characterized by comprising a handle (600), the action mechanism according to any one of claims 15 to 23, a switch body (300), and a contact mechanism (700) , wherein the handle (600) is in transmission connection to the action mechanism, and the contact mechanism (700) is disposed inside the switch body (300) and is in transmission connection to the action mechanism; and the handle (600) drives the action mechanism to rotate, and can drive the contact mechanism (700) in the switch body (300) to be opened or closed.

25. A switching mechanism, characterized by comprising a handle rotating shaft (410) and a rotation disc (420) connected to the handle rotating shaft (410), wherein a first matching portion (421) is disposed on the rotation disc (420), and the first matching portion (421) is configured to be in driving connection to a lever (220) of an operating mechanism (200) of an isolating switch (800); and the handle rotating shaft (410) is driven to rotate at an angle equal to or greater than 90° to drive the rotation disc (420) to rotate, and when the rotation disc (420) rotates, the first matching portion (421) drives the lever (220) to swing at an acute angle, such that the operating mechanism (200) is opened or closed.

26. The switching mechanism according to claim 25, characterized by further comprising a sliding plate (430) between the rotation disc (420) and the lever (220), wherein the sliding plate (430) is slidably configured on a housing (500) of the isolating switch (800) and is respectively in transmission connection to the first matching portion (421) and the lever (220); a sliding direction of the sliding plate (430) is perpendicular to an axis of the handle rotating shaft (410); and the rotation disc (420) rotates to drive the sliding plate (430) to slide on the housing (500), and the lever (220) can be driven to swing.

27. The switching mechanism according to claim 26, characterized in that the rotation disc (420) is driven to rotate with the handle rotating shaft (410) as a center on a first plane, the sliding plate (430) is driven to move linearly along a first direction, and a linear movement of the sliding plate (430) drives the lever (220) to swing on a second plane; the first plane is a plane where the rotation disc (420) is located, and the second plane is perpendicular to the first plane; and the first direction is parallel to the first plane and perpendicular to the second plane.

28. The switching mechanism according to claim 27, characterized in that a sliding distance of the sliding plate (430) in the first direction is equal to a first distance of the lever (220); and the first distance is a movement distance of an end of the lever (220) connected to the sliding plate (430) along the first direction.

29. The switching mechanism according to claim 26, characterized in that the sliding plate (430) is provided with a first limiting portion (431), and the first limiting portion (431) is in transmission connection to the first matching portion (421); and the handle rotating shaft (410) is driven to rotate to drive the rotation disc (420) to rotate, and when the rotation disc (420) rotates, the first matching portion (421) acts on the first limiting portion (431) to enable the sliding plate (430) to slide on the housing (500).

30. The switching mechanism according to claim 29, characterized in that the first matching portion (421) is a kidney-shaped groove or a U-shaped groove, and the first limiting portion (431) is a protrusion structure protruding toward the rotation disc (420); or, the first matching portion (421) is a protrusion structure protruding towards the sliding plate (430), and the first limiting portion (431) is a kidney-shaped groove or a U-shaped groove.

31. The switching mechanism according to claim 26, characterized in that a connector (422) is disposed on one side of the sliding plate (430) back away from the rotation disc (420), the connector (422) is provided with a second matching portion (4221), a second limiting portion (221) is disposed on one side of the lever (220) close to the connector (422), and the second limiting portion (221) is in transmission connection to the second matching portion (4221); and the sliding plate (430) is driven to slide on the housing (500), and the second matching portion (4221) can act on the second limiting portion (221) to enable the lever (220) to swing.

32. The switching mechanism according to claim 31, characterized in that the second matching portion (4221) is a kidney-shaped groove or a U-shaped groove, and the second limiting portion (221) is a connecting shaft (234) provided on the lever (220); or, the second matching portion (4221) is a connecting shaft (234) provided on the connector (422), and the second limiting portion (221) is a kidney-shaped groove or a U-shaped groove.

33. The switching mechanism according to claim 26, characterized by further comprising a guide rod (440) fixed on the housing (500) of the isolating switch (800), wherein the sliding plate (430) is provided with a guide hole (432) adapted to the guide rod (440), and the sliding plate (430) is disposed on the guide rod (440) through the guide hole (432) in a penetrating manner and can slide on the guide rod (440).

34. The switching mechanism according to claim 25, characterized in that a rotation axis of the handle rotating shaft (410) is perpendicular to a rotation axis of the lever (220), the rotation axis of the handle rotating shaft (410) is located within a range of a first projection of the lever (220), and the first projection is an orthographic projection of a swing region of the lever (220) between an open position and a closed position along an axis direction of the handle rotating shaft (410).

35. An isolating switch, characterized by comprising a switch body (300), an operating mechanism (200), a handle (600), and the switching mechanism according to any one of claims 25 to 34, wherein the switch body (300), the operating mechanism (200), the switching mechanism and the handle (600) are stacked in sequence, and the handle (600) drives the operating mechanism (200) to move through the switching mechanism, such that the operating mechanism (200) drives the switch body (300) to be opened or closed.

36. A connecting bar mechanism, characterized by comprising an action assembly and a test assembly, wherein the action assembly comprises a release member (231), the release member (231) moves along a preset direction to drive the action assembly to complete an opening action, the test assembly is disposed inside a housing (500), a driving surface (2322) of the test assembly is exposed out of the housing (500), and the test assembly is driven to directly or indirectly act on the release member (231) so as to drive the release member (231) to move along the preset direction.

37. The connecting bar mechanism (230) according to claim 36, characterized in that the test assembly is embedded into a test through hole of the housing (500), the driving surface (2322) is flush with an outer surface of the housing (500), or, the driving surface (2322) is located inside the test through hole.

38. The connecting bar mechanism according to claim 36, characterized in that the test assembly comprises a test button (232), the test button (232) comprises a pressing portion (2321) and a linkage portion (2323) connected to the pressing portion (2321), the pressing portion (2321) is embedded in a test through hole of the housing (500) and can move in the test through hole, and the linkage portion (2323) is connected to the release member (231).

39. The connecting bar mechanism according to claim 36, characterized in that the test assembly reciprocates linearly within the housing (500), and the release member (231) reciprocates rotationally within the housing (500).

40. The connecting bar mechanism according to claim 36, characterized by further comprising a release assembly (233), wherein the release assembly (233) is released to directly or indirectly act on the release member (231) so as to drive the release member (231) to move along the preset direction.

41. The connecting bar mechanism according to claim 40, characterized in that the test assembly is rotatably connected to the release member (231) through a connecting shaft (234), and the release assembly (233) indirectly acts on the release member (231) through the connecting shaft (234).

42. The connecting bar mechanism according to claim 40, characterized in that the release assembly (233) comprises a release (2331) and a driving member (2333) connected to the release (2331), and the release (2331) is energized to drive the driving member (2333) to move toward the release member (231) so as to drive the release member (231) to move along the preset direction.

43. The connecting bar mechanism according to claim 42, characterized in that the driving member (2333) is provided with a first working face (2334) and a second working face (2335), the first working face (2334) is connected to the release (2331), and the second working face (2335) is configured to drive the release member (231) to move along the preset direction.

44. The connecting bar mechanism according to claim 43, characterized in that the second working face (2335) is parallel to the first working face (2334), and the second working face (2335) is perpendicular to a knockout direction of the release (2331).

45. An isolating switch, characterized by comprising: a housing (500), a handle (600) disposed on the housing (500), the connecting bar mechanism (230) according to any one of claims 36 to 44, and a switch unit (330), wherein the handle (600), an action assembly of a release mechanism, and a movable contact assembly (710) of the switch unit (330) are in driving connection in sequence.

46. A remote release mechanism, characterized by comprising a release (2331) and a driving member (2333) which are disposed inside a housing (500) of an operating mechanism (200) of an isolating switch (800) and mounted on one side of a connecting bar mechanism (230) of the operating mechanism (200), wherein the driving member (2333) is in abutting contact with the connecting bar mechanism (230), the release (2331) comprises a fixed portion (2336) and a slidable striking member (2332), and when the release (2331) receives a breaking signal sent by a controller, the striking member (2332) slides out relative to the fixed portion (2336) and drives the connecting bar mechanism (230) to be unlocked and opened through the driving member (2333).

47. The remote release mechanism according to claim 46, characterized in that a knockout direction of the striking member (2332) is the same as an unlocking direction of the connecting bar mechanism (230).

48. The remote release mechanism according to claim 46, characterized in that the striking member (2332) is connected to the driving member (2333), such that the striking member (2332) can drive the driving member (2333) to slide synchronously.

49. The remote release mechanism according to claim 46, characterized in that the release (2331) is a magnetic flux release (2331), the magnetic flux release (2331) is electrically connected to the controller, and the magnetic flux release (2331) is configured to receive the breaking signal sent by the controller.

50. The remote release mechanism according to claim 46, characterized by further comprising a sliding plate (430) slidably connected in the housing (500), wherein a pushing portion (433) is disposed on the sliding plate (430), the pushing portion (433) is disposed on one side of the striking member (2332) back away from the fixed portion (2336), and the pushing portion (433) is configured to push the striking member (2332) to reset.

51. The remote release mechanism according to claim 50, characterized in that a sliding direction of the sliding plate (430) is the same or opposite to a knockout direction of the striking member (2332).

52. The remote release mechanism according to claim 50, characterized in that a contact surface of the pushing portion (433) in contact with the striking member (2332) is perpendicular to a knockout axis of the striking member (2332).

53. The remote release mechanism according to claim 50, characterized by further comprising a guide rod (440) fixedly connected in the housing (500), wherein the sliding plate (430) is provided with a guide hole (432), and the sliding plate (430) is disposed on the guide rod (440) through the guide hole (432) in a penetrating manner, such that the sliding plate (430) is slidably connected to the guide rod (440).

54. The remote release mechanism according to claim 53, characterized in that a quantity of guide rods (440) is two, and the two guide rods (440) are parallel to each other.

55. An isolating switch, characterized by comprising a switch body (300), a handle (600), and an operating mechanism (200), wherein the operating mechanism (200) comprises a connecting bar mechanism (230) and the remote release mechanism according to any one of claims 46 to 54, the switch body (300), the operating mechanism (200) and the handle (600) are stacked in sequence, and the handle (600) drives the switch body (300) to be opened or closed through the operating mechanism (200).

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