Limiting interlocking structure of isolating switch

Abstract

The utility model provides an isolating switch limit interlocking structure, which comprises an isolating switch body, the isolating switch body comprises a support, a control box, a vertical connecting rod and a transmission limit mechanism, the top of the control box protrudes upwards to form a limit block, and the limit block is provided with a closing end and an opening end. And the transmission limiting mechanism comprises a transmission part and a limiting part, the transmission part is arranged above the limiting block, the bottom of the transmission part is connected with the output end of the control box, the top of the transmission part is connected with the vertical connecting rod, the transmission part is provided with a limiting opening, and the limiting part is rotatably connected in the limiting opening. In this way, when the limiting part is manually rotated to be clamped in the limiting clamping groove, limiting can be carried out in the switching-on / switching-off state; and when the limiting part is rotated to the position above the limiting clamping groove, the limiting part can be separated to perform state switching, so that the whole manual operation switching is relatively convenient, the structure is limited in place, and a relatively good opening and closing effect can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of isolating switches, in particular to a limit interlocking structure of an isolating switch. Background Art

[0002] In the disconnector, an electric or manual mechanism is required to operate the vertical connecting rod to transmit power for the opening and closing movement of the disconnector. According to the user's usage habits, the operating mechanism of the disconnector must have an opening and closing limit function to prevent the disconnector from opening or closing too far. Therefore, it is necessary to perform electrical interlocking with other equipment to prevent misoperation.

[0003] In the prior art, when an electric mechanism is used to control the opening and closing of the switch, due to the presence of electrical components such as travel switches and auxiliary switches, the opening and closing limits can be automatically and synchronously performed and interlocked with other equipment. However, these are not suitable for the opening and closing control of the manual mechanism. If the displacement is manually limited during opening and closing, inaccurate opening and closing may occur, and the operation is inconvenient, time-consuming and labor-intensive. Therefore, a limit structure is required to ensure the opening and closing effect.

[0004] In view of this, it is necessary to propose a limit interlocking structure for an isolating switch to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a limit interlock structure for an isolating switch, so as to solve the problem in the prior art that only manual limit is used when opening and closing a manual mechanism, which leads to inaccurate opening and closing and inconvenient operation.

[0006] To achieve the above-mentioned purpose, the present invention provides an isolating switch limit interlocking structure, comprising an isolating switch body, wherein the isolating switch body comprises a support bracket, a control box and a vertical connecting rod, wherein the control box is fixed to one end of the support bracket and further comprises a transmission limit mechanism; wherein,

[0007] The top of the control box is upwardly protruded to form a limit block, and the limit block has a closing end and an opening end, and the closing end and the opening end are both recessed to form a limit slot;

[0008] The transmission limiting mechanism includes a transmission part and a limiting part, wherein the transmission part is arranged above the limiting block, the bottom of the transmission part is connected to the output end of the control box, and the top of the transmission part is connected to the vertical connecting rod. The transmission part is provided with a limiting opening, and the limiting part is rotatably connected to the limiting opening;

[0009] When the limiting portion is rotated to be locked in the limiting slot, the control box is in a stop limiting state; when the limiting portion is rotated to above the limiting slot, the control box is in an adjustment control state.

[0010] Preferably, the transmission part includes a transmission turntable and a transmission shaft, a vertical through-hole is opened in the middle of the transmission turntable, the transmission shaft is connected to the vertical through-hole, and the top and bottom ends of the transmission shaft are respectively extended out of the vertical through-hole, the bottom end of the transmission shaft is connected to the output end of the control box, and the top end of the transmission shaft is connected to the vertical connecting rod;

[0011] The transmission shaft is radially outwardly protruding to form a connecting block, and the connecting block is recessed inwardly to form a mounting groove for installing the limiting part. The limiting part is rotatably connected to the mounting groove, and the transmission turntable is radially inwardly recessed to form an opening groove corresponding to the mounting groove, and the mounting groove is communicated with the opening groove to form the limiting opening.

[0012] Preferably, the limiting portion includes a manipulation handle and a gusset plate, the gusset plate is rotatably connected to the mounting slot, and the manipulation handle is fixedly connected to one end of the gusset plate.

[0013] Preferably, an interlocking assembly is also included, which includes a locking mechanism, a lock card and a mounting plate, wherein the locking mechanism has a retractable lock core, wherein the mounting plate is fixed on the support bracket, the locking mechanism is fixedly connected to the mounting plate, the lock card is connected to the vertical connecting rod, and a stop opening is provided on the lock card for the lock core to be embedded, and the stop opening is arranged corresponding to the lock core.

[0014] Preferably, the locking mechanism is an electromagnetic lock.

[0015] Preferably, the bottom of the gusset plate is arc-shaped.

[0016] Preferably, a locking ring is further included, which is sleeved outside the vertical connecting rod and the control handle, and the inner diameter of the locking ring is adjustable.

[0017] Preferably, a locking block is further included, the locking card has a U-shaped groove, the locking card is sleeved on the vertical connecting rod, and a bolt passes through the locking block and extends into the locking card to fix the locking card on the vertical connecting rod.

[0018] Preferably, the length of the control handle is 400 mm to 500 mm.

[0019] Preferably, the gusset plate is rotatably connected to the mounting slot via a pin.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The utility model provides a limit interlock structure for an isolating switch, comprising an isolating switch body, the isolating switch body comprising a support bracket, an operating box and a vertical connecting rod, and also comprising a transmission limit mechanism, wherein the top of the operating box is upwardly protruded to form a limit block, the limit block has a closing end and an opening end, and the closing end and the opening end are both recessed to form a limit slot, the transmission limit mechanism comprises a transmission part and a limit part, the transmission part is arranged above the limit block, the bottom of the transmission part is connected to the output end of the operating box, the top of the transmission part is connected to the vertical connecting rod, the transmission part has a limit opening, and the limit part is rotatably connected to the limit opening. In this way, when the limit part is manually rotated to be locked in the limit slot, the operating box is in a stop limit state, at which time the limit can be performed in the closing / opening state; and when the limit part is rotated above the limit slot, the operating box is in an adjustment control state, at which time the limit can be released to switch the state, the overall manual operation switching is relatively convenient, and the structural limit is in place, which can ensure a good closing and opening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of a stop-limiting state of the overall structure in one embodiment of the present utility model;

[0024] Figure 2 A schematic diagram of the scene of the open position of the overall structure in one embodiment of the utility model;

[0025] Figure 3 A schematic diagram of a scene showing an adjustment and control state of the overall structure in one embodiment of the present utility model;

[0026] Figure 4 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0027] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments.

[0028] Description of Figure Numbers:

[0029] 10. Transmission limit mechanism; 110. Transmission part; 111. Transmission turntable; 1111. Opening slot; 112. Transmission shaft; 113. Connecting block; 1131. Mounting slot; 120. Limiting part; 121. Control handle; 122. Buckle plate; 20. Isolating switch body; 210. Support bracket; 220. Control box; 221. Limiting block; 222. Limiting slot; 230. Vertical connecting rod; 231. Locking ring; 30. Interlocking assembly; 310. Electromagnetic lock; 311. Lock core; 320. Locking card; 321. Stopper; 322. Locking block; 330. Mounting plate. DETAILED DESCRIPTION

[0030] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0034] Please see the attached Figure 1-4In one embodiment, the present invention provides an isolating switch limit interlocking structure, comprising an isolating switch body 20, wherein the isolating switch body 20 comprises a support bracket 210, an operating box 220 and a vertical connecting rod 230, wherein the operating box 220 is fixed to one end of the support bracket 210, and further comprises a transmission limit mechanism 10. First of all, it should be noted that, unlike the limiting means in the prior art, it is not suitable for the opening and closing control of the manual mechanism. If the displacement is manually limited during opening and closing, inaccurate opening and closing may occur, and the operation is inconvenient, time-consuming and labor-intensive. Therefore, a limiting structure is required to ensure the opening and closing effect. The present application solves the above-mentioned defects in the prior art by setting up an isolating switch limit interlocking structure, as follows:

[0035] The top of the control box 220 is protruded upward to form a limit block 221, and the limit block 221 has a closing end and an opening end, and the closing end and the opening end are both recessed to form a limit slot 222; the transmission limit mechanism 10 includes a transmission part 110 and a limit part 120, and the transmission part 110 is arranged above the limit block 221, and the bottom of the transmission part 110 is connected to the output end of the control box 220, and the top of the transmission part 110 is connected to the vertical connecting rod 230. The transmission part 110 is provided with a limit opening, and the limit part 120 is rotatably connected to the limit opening; wherein, when the limit part 120 is rotated to be stuck in the limit slot 222, the control box 220 is in a stop limit state; when the limit part 120 is rotated to above the limit slot 222, the control box 220 is in an adjustment control state.

[0036] Specifically, the isolating switch limit interlocking structure in the present application includes an isolating switch body 20, which is a type of isolating switch for manually controlling the switching of opening and closing, and includes but is not limited to a support bracket 210, an operation box 220 and a vertical connecting rod 230, which are all contents that are relatively well known to those skilled in the art, so they will not be described in detail, and also includes a transmission limit mechanism 10, which is used to limit the operation box 220 to maintain a stable state and no longer rotate when the operation box 220 is in the closed / open state, thereby ensuring the accuracy of the closing / opening position.

[0037] Among them, the transmission limiting mechanism 10 includes a transmission part 110 and a limiting part 120, the transmission part 110 is used for the installation of the limiting part 120, and at the same time, the transmission is connected to the output end of the control box 220 and the vertical connecting rod 230, so that the transmission part 110, the output end of the control box 220 and the vertical connecting rod 230 rotate synchronously; the limiting block 221 formed on the top of the control box 220 is used to cooperate with the limiting part 120 to achieve a limiting effect, and has a closing end and an opening end, and the closing end and the opening end respectively correspond to display the closing position and the opening position in the control box 220. In order to facilitate identification of the opening position by technical personnel, a limit slot 222 can be formed at both the closing end and the opening end, so that the limit part 120 can be clamped in the limit slot 222 when closing / opening the switch to achieve a limiting effect; further, a limit opening is also provided on the transmission part 110, and the limit opening is used for the installation of the limit part 120 and for the limit part 120 to pass through, and the limit part 120 is rotatably connected to the limit opening, so that the limit part 120 can be switched to two states of being clamped in the limit slot 222 and being out of the limit slot 222 by rotating the limit part 120.

[0038] Among them, when the technician operates the control box 220 to switch the disconnector to the closed or open state, the technician operates the limit part 120 to rotate so that one end can be abutted against the limit slot 222. At this time, the control box 220 is in a stop limit state, that is, it can no longer be rotated at will to ensure the accuracy of closing or opening. When the disconnector needs to be switched between the closed state and the open state, the limit part 120 is operated to rotate so that one end abutted against the limit slot 222 is separated from the limit slot 222 (that is, rotated to the top of the limit slot 222). At this time, the control box 220 is in an adjustment control state, that is, the control box 220 can be rotated and adjusted again to switch the closed state and the open state.

[0039] As a preferred embodiment of the present invention, the transmission part 110 includes a transmission turntable 111 and a transmission shaft 112. A vertical through hole is opened in the middle of the transmission turntable 111. The transmission shaft 112 is connected to the vertical through hole, and the top and bottom ends of the transmission shaft 112 extend out of the vertical through hole respectively. The bottom end of the transmission shaft 112 is connected to the output end of the control box 220, and the top end of the transmission shaft 112 is connected to the vertical connecting rod 230.

[0040] The transmission shaft 112 is radially outwardly protruding to form a connecting block 113, and the connecting block 113 is recessed inwardly to form a mounting groove 1131 for installing the limiting portion 120. The limiting portion 120 is rotatably connected to the mounting groove 1131, and the transmission turntable 111 is radially inwardly recessed to form an opening groove 1111 corresponding to the mounting groove 1131. The mounting groove 1131 is communicated with the opening groove 1111 to form the limiting opening.

[0041] It should be noted that, in one embodiment, the limit block 221 on the top of the control box 220 is in a semicircular arc shape, so it is preferably provided that the transmission turntable 111 can be conveniently blocked above the limit block 221, so that its upper and lower sides are respectively connected to the vertical connecting rod 230 and the output end of the control box 220, and the transmission shaft 112 is used to respectively connect the vertical connecting rod 230 and the output end of the control box 220 (its effect is similar to a coupling), which is connected to the vertical through hole and has both upper and lower ends extending out, so that it is convenient to connect and fix; and the connecting block 113 is used for the installation of the limit part 120, which is radially protruded on the outside of the transmission shaft 112, and the mounting groove 1131 is recessed on the connecting block 113 for the limit part 12 0 is rotatably connected and installed. During installation, it is necessary to ensure that the limiting portion 120 can rotate freely (that is, one end thereof will not be stopped by the position of other connecting blocks 113 other than the installation slot 1131). Since the connecting block 113 is located above the transmission turntable 111, in order to facilitate the limiting portion 120 to be smoothly clamped in the limiting clamping slot 222 when rotating, an opening slot 1111 is formed by radially inward depression on the transmission turntable 111. The opening slot 1111 is corresponding to the installation slot 1131. The corresponding arrangement here means that the size and shape of the opening slot 1111 are consistent and are arranged along the vertical coaxial centerline. In this way, the installation slot 1131 and the opening slot 1111 are vertically connected, thereby forming the limiting opening for the free rotation adjustment of the limiting portion 120.

[0042] As a preferred embodiment of the present invention, the limiting portion 120 includes a control handle 121 and a buckle plate 122 , the buckle plate 122 is rotatably connected to the mounting groove 1131 , and the control handle 121 is fixedly connected to one end of the buckle plate 122 .

[0043] It should be noted that the buckle plate 122 is used to cooperate with the limit slot 222 to complete the switching of whether to limit the stop, and it is rotatably connected to the installation slot 1131. In order to facilitate rotation, its bottom will not contact the bottom of the limit block 221. Preferably, the bottom of the buckle plate 122 can be set to an arc shape, so that its rotation trajectory is more matched with the arc shape, no friction occurs, and rotation is more convenient; and the control handle 121 is convenient for technicians to operate, and it is fixedly connected to one end of the buckle plate 122.

[0044] As a preferred embodiment of the present invention, it also includes an interlocking assembly 30, which includes a locking mechanism, a lock card 320 and a mounting plate 330. The locking mechanism has a retractable lock core 311, wherein the mounting plate 330 is fixed to the support bracket 210, the locking mechanism is fixedly connected to the mounting plate 330, the lock card 320 is connected to the vertical connecting rod 230, and a stop opening 321 is provided on the lock card 320 for the lock core 311 to be embedded, and the stop opening 321 is arranged corresponding to the lock core 311.

[0045] It is worth noting that the interlocking assembly 30 is used to further limit the rotation, which is mainly used to limit the rotation of the vertical link 230. Since the vertical link 230, the transmission turntable 111 and the output end of the control box 220 rotate synchronously, further limiting the rotation of the vertical link 230 can also improve the limiting effect. It specifically includes a locking mechanism, a lock card 320 and a mounting plate 330. The locking mechanism has a retractable lock core 311. Through the retraction of the lock core 311, the locking mechanism is further limited. It cooperates with the stop opening 321 of the lock card 320 to realize the switching of locked rotation / open rotation, wherein the mounting plate 330 is used for the installation of the locking mechanism, so that the locking mechanism is installed on the support bracket 210 of the isolating switch body 20, and the lock card 320 is connected to the vertical connecting rod 230, so that the lock core 311 of the locking mechanism is aligned with the stop opening 321 of the lock card 320, thereby completing the purpose of setting the stop opening 321 corresponding to the lock core 311.

[0046] As a preferred embodiment of the present invention, the locking mechanism is an electromagnetic lock 310 .

[0047] It is worth noting that the electromagnetic lock 310 is a commonly used switch lock. It uses the principle of electromagnetism to control its lock core 311 to extend or retract through a switch. The specific principle is well known to those skilled in the art and will not be described in detail here. When the technician manipulates the limit part 120 to rotate to the control box 220 to be in the stop limit state, the circuit of the electromagnetic lock 310 can be disconnected at this time, and the lock core 311 loses the magnetic attraction effect and extends into the stop mouth 321 of the lock card 320, thereby limiting the rotation of the vertical link 230 to further improve the limiting effect of the overall structure. When the technician manipulates the limit part 120 to rotate to the control box 220 to be in the adjustment control state, the normally open contact of the electromagnetic lock 310 interlock can be unlocked, closed, and the electromagnetic lock 310 circuit is connected, and the lock core 311 of the electromagnetic lock 310 is retracted into the electromagnetic lock 310, thereby completely releasing the limit function, and the technician can switch the closing and opening states by himself.

[0048] Furthermore, a locking ring 231 is included. The locking ring 231 is sleeved outside the vertical connecting rod 230 and the control handle 121, and the inner diameter of the locking ring 231 is adjustable.

[0049] It should be understood that the locking ring 231 is used to lock the control handle 121 and the vertical connecting rod 230 together when the control handle 121 is in a vertical state (the bottom end is against the limit slot 222), thereby preventing the control handle 121 from automatically driving the buckle plate 122 to rotate; wherein, the inner diameter of the locking ring 231 can be adjusted to ensure the locking effect.

[0050] Furthermore, it also includes a locking block 322, the locking card 320 has a U-shaped groove, the locking card 320 is sleeved on the vertical connecting rod 230, and a bolt passes through the locking block 322 and extends into the locking card 320 to fix the locking card 320 on the vertical connecting rod 230.

[0051] It should be noted that the U-shaped groove of the lock card 320 is used for the vertical connecting rod 230 to pass through, and the locking block 322 is used to cooperate to fix the lock card 320 on the vertical connecting rod 230. It is installed by bolt connection with adjustable tightness to match the outer diameter of the vertical connecting rod 230 to ensure the stable connection effect of the lock card 320.

[0052] Furthermore, the length of the control handle 121 is 400 mm to 500 mm.

[0053] It should be noted that the longer the control handle 121 is, the easier it is for technicians to operate it. In a preferred embodiment, the length of the control handle 121 can be set to 400mm to 500mm, and those skilled in the art can make a selection according to actual needs.

[0054] Furthermore, the buckle plate 122 is rotatably connected to the mounting slot 1131 via a pin.

[0055] It is understandable that the pin connection method is more convenient for installation and connection, and can better realize the rotation function of the buckle plate 122.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A limit interlocking structure for an isolating switch, comprising an isolating switch body, the isolating switch body comprising a support bracket, a control box and a vertical connecting rod, the control box being fixed to one end of the support bracket, characterized in that: It also includes a transmission limiting mechanism; wherein, The top of the control box is upwardly protruded to form a limit block, and the limit block has a closing end and an opening end, and the closing end and the opening end are both recessed to form a limit slot; The transmission limiting mechanism includes a transmission part and a limiting part, wherein the transmission part is arranged above the limiting block, the bottom of the transmission part is connected to the output end of the control box, and the top of the transmission part is connected to the vertical connecting rod. The transmission part is provided with a limiting opening, and the limiting part is rotatably connected to the limiting opening; When the limiting portion is rotated to be locked in the limiting slot, the control box is in a stop limiting state; when the limiting portion is rotated to above the limiting slot, the control box is in an adjustment control state.

2. The isolating switch limit interlocking structure according to claim 1, characterized in that: The transmission part includes a transmission turntable and a transmission shaft. A vertical through-hole is opened in the middle of the transmission turntable. The transmission shaft is connected to the vertical through-hole, and the top and bottom ends of the transmission shaft extend out of the vertical through-hole respectively. The bottom end of the transmission shaft is connected to the output end of the control box, and the top end of the transmission shaft is connected to the vertical connecting rod. The transmission shaft is radially outwardly protruding to form a connecting block, and the connecting block is recessed inwardly to form a mounting groove for installing the limiting part. The limiting part is rotatably connected to the mounting groove, and the transmission turntable is radially inwardly recessed to form an opening groove corresponding to the mounting groove, and the mounting groove is communicated with the opening groove to form the limiting opening.

3. The isolating switch limit interlocking structure according to claim 2, characterized in that: The limiting portion includes a manipulation handle and a gusset plate, the gusset plate is rotatably connected to the mounting slot, and the manipulation handle is fixedly connected to one end of the gusset plate.

4. The isolating switch limit interlocking structure according to claim 1, characterized in that: It also includes an interlocking assembly, which includes a locking mechanism, a lock card and a mounting plate. The locking mechanism has a retractable lock core, wherein the mounting plate is fixed to the support bracket, the locking mechanism is fixedly connected to the mounting plate, the lock card is connected to the vertical connecting rod, and the lock card is provided with a stopper opening for the lock core to be embedded, and the stopper opening is arranged corresponding to the lock core.

5. The isolating switch limit interlocking structure according to claim 4, characterized in that: The locking mechanism is an electromagnetic lock.

6. The isolating switch limit interlocking structure according to claim 3, characterized in that: The bottom of the gusset plate is in an arc shape.

7. The isolating switch limit interlocking structure according to claim 3, characterized in that: It also includes a locking ring, which is sleeved outside the vertical connecting rod and the control handle, and the inner diameter of the locking ring is adjustable.

8. The isolating switch limit interlocking structure according to claim 4, characterized in that: It also includes a locking block, the locking card has a U-shaped groove, the locking card is sleeved on the vertical connecting rod, and a bolt passes through the locking block and extends into the locking card to fix the locking card on the vertical connecting rod.

9. The isolating switch limit interlocking structure according to claim 3, characterized in that: The length of the control handle is 400mm to 500mm.

10. The isolating switch limit interlocking structure according to claim 3, characterized in that: The gusset plate is rotatably connected to the mounting slot via a pin shaft.

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