Transmission mechanism and isolating switch

Abstract

The invention provides a transmission mechanism and an isolating switch, and relates to the technical field of low-voltage electrical appliances, the transmission mechanism comprises a first four-bar mechanism, the first four-bar mechanism is used for being 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 mechanism to enable a switch body to be switched on and switched off; the rotating angle of the operating mechanism rotating shaft is smaller than that of the body rotating shaft. The first four-bar mechanism and the switch body are driven to be linked in sequence through the action of the operating mechanism to realize opening and closing; compared with an existing structure that a connecting rod is connected, the first four-connecting-rod mechanism meets the transmission requirement that the distance between a rotating point (an operating mechanism rotating shaft) of the operating mechanism and a rotating point (a body rotating shaft) of the switch body is small under the miniaturized space layout, and the rotating angle of the operating mechanism is smaller than that of the switch body; and the transmission is stable and reliable, the transmission torque is large, the angle conversion requirement in a small space is met, and the arrangement of miniaturized products is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of low-voltage electrical appliances, and in particular to a transmission mechanism and an isolating switch. Background Art

[0002] In the existing isolating switches, the operating mechanism and the switch body are connected by a connecting rod; the existing isolating switches have a large space, and the distance between the rotation point of the operating mechanism and the rotation point of the switch body is relatively far, which is convenient for the arrangement of the connecting rod. However, with the emergence of miniaturization requirements, the space of the isolating switches becomes smaller. In this case, the distance between the rotation point of the existing operating mechanism and the rotation point of the switch body should also be shortened accordingly, making the existing connecting rod arrangement no longer suitable for the miniaturization space requirements. Summary of the invention

[0003] The purpose of the present application is to provide a transmission mechanism and a disconnector that can meet the needs of miniaturized space layout in order to address the deficiencies in the above-mentioned prior art.

[0004] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is as follows:

[0005] In one aspect of an embodiment of the present application, a transmission mechanism is provided, including a first four-bar linkage mechanism, wherein the first four-bar linkage mechanism is used to connect between an operating mechanism shaft and a main body shaft, and the operating mechanism shaft drives the main body shaft to rotate synchronously through the first four-bar linkage mechanism to open and close the switch body; the rotation angle of the operating mechanism shaft is smaller than the rotation angle of the main body shaft.

[0006] Optionally, the first four-bar linkage is arranged in the switch body, and the operating mechanism is connected to the first four-bar linkage through a mechanism bracket; part of the mechanism bracket extends into the switch body so that the projection of the mechanism bracket and the first four-bar linkage in the axial direction along the body rotation shaft partially overlaps with the switch body.

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

[0008] Optionally, the mechanism bracket is connected to the first connecting rod via the operating mechanism shaft.

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

[0010] Optionally, when the number of the switch bodies is greater than 1, multiple levels of the switch bodies are arranged side by side along the first direction, and the body rotation axes of two adjacent levels of the switch bodies are connected by a second four-bar linkage.

[0011] Optionally, the second four-bar linkage includes a fifth link connected to the body rotation shaft of the first-level switch body, a sixth link connected to the body rotation shaft of the next-level switch body, a seventh link connecting the fifth link and the sixth link, and a virtual eighth link connected between the body rotation shafts of two adjacent levels of the switch bodies.

[0012] Optionally, the fifth link and the sixth link are arranged in parallel so that the second four-bar linkage forms a parallelogram.

[0013] Optionally, the second link of the first four-bar linkage and the seventh link of the second four-bar linkage are respectively located on both sides of a line connecting the body rotation axes of the two-stage switch bodies.

[0014] Optionally, in the first four-bar linkage mechanism and the second four-bar linkage mechanism, two adjacent connecting rods are transmission connected via an axial hole.

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

[0016] Another aspect of an embodiment of the present application provides an isolating switch, comprising a handle, an operating mechanism and at least one switch body which are linked in sequence, wherein the operating mechanism and the switch body are connected via the above-mentioned transmission mechanism.

[0017] Optionally, each level of the switch body includes multiple layers of switch units arranged along the axial direction of the body rotation shaft, and adjacent switch units are transmission-connected via their respective body rotation shafts.

[0018] Optionally, the body rotation axis is symmetrically arranged along the first direction, and grooves or bosses are formed at both symmetrical ends of the body rotation axis; the body rotation axes of two adjacent switch units are connected by the cooperation of the adjacent grooves and bosses;

[0019] The switch units of multiple layers are synchronously driven by their respective main body shafts, the operating mechanism shaft drives the main body shaft of the first stage of the switch body to rotate synchronously through the first four-bar linkage mechanism, and the main body shafts of each stage of the multi-stage switch bodies are driven to rotate synchronously by the second four-bar linkage mechanism to open and close the isolating switch.

[0020] The beneficial effects of this application include:

[0021] The present application provides a transmission mechanism and an isolating switch, including a first four-bar linkage connecting an operating mechanism and a switch body, wherein the operating mechanism shaft and the body shaft are connected in transmission through the first four-bar linkage, so that the first four-bar linkage and the switch body are driven to sequentially link together through the action of the operating mechanism to realize opening and closing of the switch; compared with the situation where the existing structure is connected through one connecting rod, the operating mechanism shaft in the present application drives the body shaft to rotate synchronously through the first four-bar linkage, and the first four-bar linkage solves the transmission requirement of a small distance between the rotation point of the operating mechanism (operating mechanism shaft) and the rotation point of the switch body (body shaft) in a miniaturized space layout, so that the rotation angle of the operating mechanism is smaller than the rotation angle of the switch body, the transmission is stable and reliable, the transmission torque is large, the angle conversion requirement in a small space is realized, and it is conducive to miniaturized product settings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 One of the structural schematic diagrams of a transmission mechanism provided in an embodiment of the present application;

[0024] Figure 2 A second structural schematic diagram of a transmission mechanism provided in an embodiment of the present application;

[0025] Figure 3 A third structural diagram of a transmission mechanism provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the main body shaft structure of an isolating switch provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of the structure of the mechanism support provided in the embodiment of the present application;

[0028] Figure 6 A schematic diagram of the structure of an isolating switch provided in an embodiment of the present application.

[0029] Icons: 10-operating mechanism; 10a-operating mechanism shaft; 11-mechanism bracket; 11a-extension portion; 11b-arc notch; 11c-arc groove; 11d-shaft; 11e-energy storage member; 20-switch body; 201-body shaft; 201a-groove; 21-switch unit; 101-first four-bar linkage; 101a-first link; 101b-second link; 101c-third link; 102-second four-bar linkage; 102a-fifth link; 102b-sixth link; 102c-seventh link; F1-first direction; θ 1 ,θ 2 -Rotation angle. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. It should be noted that, in the absence of conflict, the various features in the embodiments of the present application can be combined with each other, and the combined embodiments are still within the scope of protection of the present application.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the existing isolating switches, the distance between the rotation point of the operating mechanism and the rotation point of the switch body is relatively far, which is convenient for the arrangement of the connecting rod. However, under the requirements of miniaturized space scenes, the existing connecting rod arrangement is undoubtedly no longer suitable for short-distance transmission requirements.

[0037] In view of this, in order to solve the above problems, one aspect of the embodiment of the present application is as follows: Figure 1 As shown, a transmission mechanism is provided, which includes a first four-bar linkage 101, and the first four-bar linkage 101 is used to connect between the operating mechanism shaft 10a and the body shaft 201, so that the operating mechanism shaft 10a rotates at an angle θ 1 Smaller than the rotation angle θ of the main body shaft 201 2 .

[0038] The operating mechanism 10 and the switch body 20 are driven by a transmission mechanism. The handle drives the operating mechanism 10 to move, and then drives the switch body 20 to move through the transmission mechanism to achieve opening and closing.

[0039] The transmission mechanism includes a first four-bar linkage 101 , through which the operating mechanism shaft 10a and the body shaft 201 are connected, so that the first four-bar linkage 101 and the switch body 20 are driven to work in conjunction with each other through the action of the operating mechanism 10 .

[0040] In the embodiments of the present application, Figure 3 As shown, the rotation angle θ of the operating mechanism shaft 10a is 1 In the range of 40° to 70°, the rotation angle θ of the main body shaft 201 is 2 The rotation angle θ of the operating mechanism shaft 10a is between 80° and 120°. 1 is an acute angle, and the rotation angle θ of the main body shaft 201 2The acute angle is an obtuse angle, and the first four-bar linkage 101 is used to realize the conversion from an acute angle to an obtuse angle, so as to meet the requirement of a short distance between the rotation center of the operating mechanism 10 and the rotation center of the switch body 20 .

[0041] Therefore, the transmission mechanism provided by the embodiment of the present application includes a first four-bar linkage 101 connecting the operating mechanism 10 and the switch body 20, and the operating mechanism shaft 10a and the body shaft 201 are connected in transmission through the first four-bar linkage 101, so that the first four-bar linkage 101 and the switch body 20 are driven to sequentially link through the action of the operating mechanism 10 to realize opening and closing of the switch; compared with the situation where the connection is made through one connecting rod in the existing structure, the operating mechanism shaft 10a in the present application drives the body shaft 201 to rotate synchronously through the first four-bar linkage 101, and the first four-bar linkage 101 solves the transmission requirement of a small distance between the rotation point of the operating mechanism 10 (the operating mechanism shaft 10a) and the rotation point of the switch body 20 (the body shaft 201) under the miniaturized space layout, so that the rotation angle θ of the operating mechanism 10 1 is smaller than the rotation angle θ of the switch body 20 2 The transmission is stable and reliable, the torque is large, and the angle conversion needs in a small space are met, which is conducive to miniaturized product settings.

[0042] On this basis, the first four-bar linkage 101 is arranged in the switch body 20, and the operating mechanism 10 is connected to the first four-bar linkage 101 through the mechanism bracket 11; part of the mechanism bracket 11 extends into the switch body 20 so that the projection of the mechanism bracket 11 and the first four-bar linkage 101 along the axial direction of the body rotation shaft 201 overlaps with part of the switch body 20.

[0043] For example, Figure 5 As shown, the mechanism bracket 11 has an extension portion 11 a extending into the switch body 20 , an arc-shaped notch 11 b is formed on the extension portion 11 a to avoid the body shaft 201 , and the operating mechanism shaft 10 a passes through the extension portion 11 a of the mechanism bracket 11 to connect to the first four-bar linkage 101 .

[0044] For example, there are two extending portions 11 a disposed opposite to each other, clamping the first link 101 a of the first four-bar linkage 101 therebetween.

[0045] An arc groove 11c is also formed on the extension portion 11a, and the rotation angle of the first four-bar linkage 101 can be limited by the arc groove 11c; a rotating shaft 11d is arranged in the arc groove 11c, and the rotating shaft 11d passes through the first four-bar linkage 101 to connect the extension portion 11a and the first four-bar linkage 101; when the first four-bar linkage 101 rotates with the mechanism bracket 11, the rotating shaft 11d rotates in the arc groove 11c to limit the rotation range of the first four-bar linkage 101 within the arc range of the arc groove 11c.

[0046] In addition, if Figure 2 As shown, an energy storage component 11e is also provided on the main body shaft 201. The energy storage component is generally an energy storage spring, which is sleeved on the main body shaft 201, and the two ends are respectively connected to the two extension parts 11a; the energy storage component 11e is used for the mechanism bracket 11 to drive the first four-bar linkage 101 to store energy when closing the switch, and to release energy when opening the switch.

[0047] The first four-bar linkage 101 is located in the switch body 20, the extension 11a extends into the switch body 20, and the operating mechanism shaft 10a is connected to the extension 11a. Such a configuration can better meet the transmission requirements of a smaller distance between the operating mechanism shaft 10a and the body shaft 201. Figure 3 It can be seen that the operating mechanism shaft 10a and the body shaft 201 are basically close to each other, which can compress the size of the isolating switch in the height direction (first direction F1), so that the isolating switch can meet the scenario requirements of miniaturization.

[0048] Specifically, the first four-bar linkage 101 includes a first link 101a, a second link 101b, a third link 101c and a fourth link connected in sequence, the first link 101a is connected to the operating mechanism shaft 10a, the third link 101c is connected to the main body shaft 201, and the fourth link is a virtual link connecting the main body shaft 201 and the operating mechanism shaft 10a.

[0049] For example, one end of the first link 101a is connected to the operating mechanism shaft 10a, and the other end is connected to one end of the second link 101b. The other end of the second link 101b is connected to one end of the third link 101c, and the third link 101c is provided with a main body shaft 201. The first four-bar mechanism 101 is formed by the above three links and a virtual link formed between the operating mechanism shaft 10a and the main body shaft 201.

[0050] As mentioned above, the operating mechanism shaft 10 a passes through the extended portion of the mechanism bracket 11 to connect to the first four-bar linkage 101 ; specifically, the mechanism bracket 11 and the first link 101 a are connected through the operating mechanism shaft 10 a .

[0051] When the first four-bar linkage 101 is connected, two adjacent links are connected by shaft holes, specifically, the first link 101a and the second link 101b are connected by shaft holes, and the second link 101b and the third link 101c are connected by shaft holes.

[0052] For example, a hole is formed at the end of the first connecting rod 101a, and an axis is set at the end of the second connecting rod 101b, and the first connecting rod 101a and the second connecting rod 101b are connected by fitting the axis hole; it is also possible that the axis is set at the end of the first connecting rod 101a, and the hole is formed at the end of the second connecting rod 101b, and the two can also be connected by fitting the axis hole; the same is true for the second connecting rod 101b and the third connecting rod 101c, the hole can be formed on the second connecting rod 101b, and the axis is set on the third connecting rod 101c; or, the hole is formed on the third connecting rod 101c, and the axis is set on the second connecting rod 101b.

[0053] Further, the first link 101a, the second link 101b and the third link 101c can be connected by a single rod; or a single link can be clamped between two links; when the first four-bar linkage 101 is connected, two adjacent links are clamped and connected. For example, the first link 101a includes two, and the second link 101b is clamped between two parallel first links 101a; or, the second link 101b includes two, and the first link 101a and the third link 101c are respectively clamped between two parallel second links 101b; or, the third link 101c includes two, and the second link 101b is clamped between two parallel third links 101c.

[0054] In one feasible method of the present application, there are two parallel second connecting rods 101b, and the ends of the two parallel second connecting rods 101b respectively clamp the ends of the first connecting rod 101a and the third connecting rod 101c therein; compared with the situation where a single connecting rod is prone to unilateral force deflection when connected, the present application adopts a setting of double connecting rods clamping a single connecting rod, which can ensure that the transmission force is transmitted within the plane, making the transmission force more stable.

[0055] On this basis, when the number of the switch bodies 20 is greater than 1, the multi-stage switch bodies 20 are arranged side by side along the first direction F1, and the body rotation shafts 201 of two adjacent stages of the switch bodies 20 are connected by a second four-bar linkage 102 .

[0056] The first direction F1 is an axial direction perpendicular to the body rotation shaft 201. In the first direction F1, a first-stage switch body 20, a second-stage switch body 20, a third-stage switch body 20... are sequentially arranged side by side on one side of the operating mechanism 10. The switch bodies 20 of each stage are connected by a second four-bar linkage 102. Specifically, the second four-bar linkage 102 is connected between the body rotation shafts 201 between the switch bodies 20 of each stage.

[0057] Specifically, the second four-bar linkage 102 includes a fifth link 102a connected to the body rotation shaft 201 of the first-level switch body 20, a sixth link 102b connected to the body rotation shaft 201 of the next-level switch body 20, a seventh link 102c connecting the fifth link 102a and the sixth link 102b, and a virtual eighth link connected between the body rotation shafts 201 of two adjacent switch bodies 20.

[0058] A virtual eighth link is formed between the main body shafts 201 of two adjacent switch bodies 20, and constitutes a second four-link mechanism 102 together with the fifth link 102a, the sixth link 102b, and the seventh link 102c; for example, the fifth link 102a, the third link 101c, and the first-level main body shaft 201 are integrally arranged, and the first-level main body shaft 201 is located at the intersection of the ends of the fifth link 102a and the third link 101c.

[0059] The first-stage switch body 20 and the second-stage switch body 20 are linked by a second four-bar linkage 102; similarly, another second four-bar linkage 102 can be set between the second-stage switch body 20 and the third-stage switch body 20, and between the third-stage switch body 20 and the fourth-stage switch body 20, and so on. The transmission between the switch bodies 20 of each stage is realized through the second four-bar linkage 102.

[0060] Through the second four-bar linkage 102, synchronous transmission between the switch bodies 20 at each level is achieved, and the transmission is stable and reliable, with large torque transmission; the structure has strong extensibility, and when multiple switch bodies 20 are connected in parallel, it can be achieved through the second four-bar linkage 102, realizing the modularization requirements of the product.

[0061] Similar to the first four-bar linkage 101, in the second four-bar linkage 102, two adjacent links are connected by shaft holes. Specifically, the fifth link 102a and the sixth link 102b are connected by shaft holes, and the sixth link 102b and the seventh link 102c are connected by shaft holes.

[0062] The shaft can be set on the fifth connecting rod 102a, and the hole can be formed on the sixth connecting rod 102b; or the shaft can be set on the sixth connecting rod 102b, and the hole can be formed on the fifth connecting rod 102a; the sixth connecting rod 102b and the seventh connecting rod 102c are similar, and the connection transmission between the two connecting rods is realized by matching the shaft and the hole.

[0063] For example, the fifth link 102a and the sixth link 102b are arranged in parallel, so that the second four-bar linkage 102 forms a parallelogram structure to achieve stable transmission.

[0064] Similarly, in the second four-bar linkage 102, two adjacent links are clamped and connected. The fifth link 102a includes two, and the sixth link 102b is clamped between the two parallel fifth links 102a; or, the sixth link 102b includes two, and the fifth link 102a and the seventh link 102c are respectively clamped between the two parallel sixth links 102b; or, the seventh link 102c includes two, and the sixth link 102b is clamped between the two parallel seventh links 102c.

[0065] The present application shows a situation where the ends of the two seventh links 102c are respectively clamped with the fifth link 102a and the sixth link 102b; similar to the aforementioned first four-bar linkage 101, the second four-bar linkage 102 uses double links to clamp a single link to ensure stable transmission.

[0066] The first four-bar linkage 101 and the second four-bar linkage 102 are respectively located on both sides of the line connecting the body rotation shaft 201 of the two-stage switch body 20 .

[0067] The connecting direction of the body rotation axis 201 of the two-pole switch body 20 is the first direction F1. Figure 4 As shown, the first four-bar linkage 101 is located below the connecting line, and the second four-bar linkage 102 is located above the connecting line, so as to facilitate the spatial layout and realize stable transmission.

[0068] Specifically, the second connecting rod 101b and the seventh connecting rod 102c are respectively located on both sides of the line connecting the body rotation axis 201 of the two-stage switch body 20 to form a symmetrical structure along the line, which is beneficial to the rotation balance of the two four-bar linkages.

[0069] On the other hand, please refer to Figure 6 As shown, an embodiment of the present application further provides an isolating switch, comprising a handle, an operating mechanism 10 and at least one switch body 20 linked in sequence, wherein the operating mechanism 10 and the switch body 20 are connected via the transmission mechanism mentioned above.

[0070] The operating mechanism 10 and the first-stage switch body 20 are connected in transmission via a first four-bar linkage 101 , and the switch bodies 20 at each stage are connected in transmission via a second four-bar linkage 102 .

[0071] Each level of the switch body 20 includes multiple layers of switch units 21 arranged along the axial direction of the body rotation shaft 201 , and adjacent switch units 21 are transmission-connected via their respective body rotation shafts 201 .

[0072] For the single-stage switch body 20 , it includes multiple layers of stacked switch units 21 , which are stacked along the axial direction of the body shaft 201 ; the multiple layers of switch units 21 are transmission-connected via their respective body shafts 201 .

[0073] Furthermore, in order to improve the convenience of assembly, the main body shaft 201 of each switch unit 21 is symmetrically arranged along an axial direction perpendicular to the main body shaft 201, that is, a first direction F1, and grooves 201a or bosses are formed at both symmetrical ends of the main body shaft 201; the main body shafts 201 of two adjacent switch units 21 are connected by matching adjacent grooves 201a and bosses.

[0074] Both ends of the same main body rotating shaft 201 are grooves 201a, or both are bosses; the bosses and the grooves 201a cooperate to make the adjacent main body rotating shafts 201 transmission connected.

[0075] For example, Figure 4 As shown, both ends of the first body shaft 201 are grooves 201a, and both ends of the adjacent body shaft 201 above it are bosses, and the boss of the upper body shaft 201 is embedded in the groove 201a of the first body shaft 201 to achieve transmission connection between the two; the body shaft 201 below the first body shaft 201 is also connected in the same way, and the body shafts 201 of each layer are transmission connected in sequence to realize torque transmission, so that the switch units 21 of each layer are synchronously transmitted.

[0076] In the axial direction of the main body shaft 201, the multi-layer switch units 21 are synchronously transmitted through their respective main body shafts 201; along the first direction F1, the handle drives the operating mechanism 10 to move, and the operating mechanism shaft 10a drives the main body shaft 201 of the first-stage switch body 20 to rotate synchronously through the first four-bar linkage 101, and the multi-stage switch bodies 20 drive the main body shafts 201 of each stage to rotate synchronously through the second four-bar linkage 102 to realize the opening and closing of the isolating switch.

[0077] The isolating switch includes the same structure and beneficial effects as the transmission mechanism in the aforementioned embodiment. The structure and beneficial effects of the transmission mechanism have been described in detail in the aforementioned embodiment and will not be repeated here.

[0078] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A transmission mechanism, It is characterized in that The invention comprises a first four-bar linkage (101), wherein the first four-bar linkage (101) is used to be connected between an operating mechanism rotating shaft (10a) and a main body rotating shaft (201), wherein the operating mechanism rotating shaft (10a) drives the main body rotating shaft (201) to rotate synchronously through the first four-bar linkage (101), so as to open and close the switch main body (20); the rotation angle (θ 1 ) is smaller than the rotation angle (θ 2 ).

2. The transmission mechanism according to claim 1, It is characterized in that The first four-bar linkage (101) is arranged in the switch body (20), and the operating mechanism (10) is connected to the first four-bar linkage (101) via a mechanism bracket (11); a portion of the mechanism bracket (11) extends into the switch body (20), so that the projections of the mechanism bracket (11) and the first four-bar linkage (101) along the axial direction of the body rotation shaft (201) partially overlap with the switch body (20).

3. The transmission mechanism according to claim 2, It is characterized in that The first four-bar linkage (101) comprises a first link (101a), a second link (101b), a third link (101c) and a fourth link which are connected in sequence, wherein the first link (101a) is connected to the operating mechanism rotating shaft (10a), the third link (101c) is connected to the main body rotating shaft (201), and the fourth link is a virtual link connecting the main body rotating shaft (201) and the operating mechanism rotating shaft (10a).

4. The transmission mechanism according to claim 3, It is characterized in that The mechanism bracket (11) and the first connecting rod (101a) are connected via the operating mechanism rotating shaft (10a).

5. The transmission mechanism according to claim 1, It is characterized in that The rotation angle (θ 1 ) is between 40° and 70°, and the rotation angle (θ 2 ) is between 80° and 120°.

6. The transmission mechanism according to any one of claims 1 to 5, It is characterized in that When the number of the switch bodies (20) is greater than 1, multiple levels of the switch bodies (20) are arranged side by side along the first direction (F1), and the body rotation shafts (201) of two adjacent levels of the switch bodies (20) are connected via a second four-bar linkage (102).

7. The transmission mechanism according to claim 6, It is characterized in that The second four-bar linkage (102) comprises a fifth link (102a) connected to the body rotation shaft (201) of the first-level switch body (20), a sixth link (102b) connected to the body rotation shaft (201) of the next-level switch body (20), a seventh link (102c) connecting the fifth link (102a) and the sixth link (102b), and a virtual eighth link connected between the body rotation shafts (201) of two adjacent levels of the switch bodies (20).

8. The transmission mechanism according to claim 7, It is characterized in that The fifth link (102a) and the sixth link (102b) are arranged in parallel so that the second four-bar linkage (102) forms a parallelogram.

9. The transmission mechanism according to claim 6, It is characterized in that The second link (101b) of the first four-link mechanism (101) and the seventh link (102c) of the second four-link mechanism (102) are respectively located on both sides of a line connecting the body rotation axes (201) of the two-stage switch bodies (20).

10. The transmission mechanism according to claim 6, It is characterized in that In the first four-bar linkage (101) and the second four-bar linkage (102), two adjacent links are transmission-connected via shaft holes.

11. The transmission mechanism according to claim 6, It is characterized in that In the first four-bar linkage (101) and the second four-bar linkage (102), two adjacent links are clamped and connected.

12. An isolating switch, It is characterized in that It comprises a handle, an operating mechanism (10) and at least one switch body (20) which are linked in sequence, wherein the operating mechanism (10) and the switch body (20) are connected via a transmission mechanism according to any one of claims 1 to 11.

13. The isolating switch according to claim 12, It is characterized in that Each level of the switch body (20) comprises a plurality of layers of switch units (21) arranged along the axial direction of the body rotation shaft (201), and adjacent switch units (21) are transmission-connected via their respective body rotation shafts (201).

14. The isolating switch according to claim 13, It is characterized in that The body rotation shaft (201) is symmetrically arranged along the first direction (F1), and grooves (201a) or bosses are formed at both symmetrical ends of the body rotation shaft (201); the body rotation shafts (201) of two adjacent switch units (21) are connected through the cooperation of adjacent grooves (201a) and bosses; The switch units (21) of multiple layers are synchronously driven through their respective body rotating shafts (201); the operating mechanism rotating shaft (10a) drives the body rotating shaft (201) of the switch body (20) of one stage to rotate synchronously through the first four-bar linkage (101); and the body rotating shafts (201) of each stage are driven to rotate synchronously through the second four-bar linkage (102) between the multiple stages of the switch bodies (20), so as to open and close the isolating switch.

Images