Limiting interlocking structure of isolating switch

Abstract

The invention provides an isolating switch limiting interlocking structure which comprises an isolating switch body, the isolating switch body comprises a supporting bracket, a control box and a vertical connecting rod, the isolating switch body further comprises a transmission limiting mechanism, the top of the control box protrudes upwards to form a limiting block, and the limiting 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 invention relates to the technical field of isolating switches, in particular to a limiting interlocking structure of an isolating switch. Background Art

[0002] In the isolating switch, an electric or manual mechanism is required to operate the vertical connecting rod to transmit power for the opening and closing movements of the isolating switch. According to the user's usage habits, the operating mechanism of the isolating switch must have the opening and closing limit function to prevent the isolating switch from opening and closing too much. 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 of an isolating switch to solve or at least alleviate the above defects. Summary of the invention

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

[0006] To achieve the above object, the present invention provides a limit interlocking structure for an isolating switch, 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 convexly arranged upward 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 concave to form a limit slot;

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

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

[0010] Preferably, the transmission part comprises a transmission turntable and a transmission shaft, a vertical through hole is opened in the middle of the transmission turntable, the transmission shaft penetrates and is connected in 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;

[0011] The transmission shaft is radially protruding outward to form a connecting block, and the connecting block is recessed inward to form a mounting groove for installing the limiting part. The limiting part is rotatably connected in the mounting groove, and the transmission turntable is radially recessed inward 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 control handle and a buckle plate, the buckle plate is rotatably connected to the mounting groove, and the control handle is fixedly connected to one end of the buckle 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 to the supporting 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 stop opening 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, it further comprises 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.

[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 penetrates 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 buckle plate is rotatably connected to the mounting groove via a pin.

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

[0021] The invention provides a kind of isolating switch limit interlocking structure, including an isolating switch body, the isolating switch body including a supporting bracket, a control box and a vertical connecting rod, and also including a transmission limit mechanism, the top of the control box is convexly arranged upward to form a limit block, the limit block has a closing end and an opening end, the closing end and the opening end are both recessed to form a limit slot, the transmission limit mechanism includes 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 control box, the top of the transmission part is connected to the vertical connecting rod, the transmission part is provided with 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 stuck in the limit slot, the control box is in a stop limit state, and the limit can be performed in the closing / opening state; and when the limit part is rotated to the top of the limit slot, the control box is in an adjustment control state, and the limit can be separated to switch the state, the overall manual operation switching is more convenient, and the structural limit is in place, which can ensure a better 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 drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 creative work.

[0023] Figure 1 A schematic diagram of a scene of a stop limit state of the overall structure in one embodiment of the present invention;

[0024] Figure 2 A schematic diagram of a scene of the opening position of the overall structure in one embodiment of the present invention;

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

[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 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. Clamp plate; 20. Isolating switch body; 210. Support bracket; 220. Control box; 221. Limiting block; 222. Limiting card 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 used 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the 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 the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Please see attached Figure 1-4In one embodiment of the present invention, a limit interlocking structure for an isolating switch is provided, comprising an isolating switch body 20, wherein the isolating switch body 20 comprises a supporting bracket 210, an operating box 220 and a vertical connecting rod 230, wherein the operating box 220 is fixed to one end of the supporting 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 limit 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 protrudes 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, the transmission part 110 is arranged above the limit block 221, the bottom of the transmission part 110 is connected to the output end of the control box 220, 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 clamped 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 with manually controlled opening and closing switching, and includes but is not limited to a supporting bracket 210, an operating box 220 and a vertical connecting rod 230, which are all relatively well known to those skilled in the art and will not be described in detail. It also includes a transmission limit mechanism 10, and the transmission limit mechanism 10 is used to limit the operating box 220 to maintain a stable state and no longer rotate when the operating box 220 is in a closed / open state, thereby ensuring the accuracy of the closing / opening position.

[0037] The transmission limit mechanism 10 includes a transmission part 110 and a limit part 120, wherein the transmission part 110 is used for installing the limit part 120, and at the same time, the transmission part 110 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 limit block 221 formed on the top of the control box 220 is used to cooperate with the limit part 120 to achieve a limiting effect, and it 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 closing position in the control box 220. In order to facilitate the identification of the opening position by technical personnel, a limit slot 222 may be formed by recessing at both the closing end and the opening end, so that the limit portion 120 can be clamped in the limit slot 222 during closing / opening to achieve a limiting effect; further, a limit opening is also provided on the transmission portion 110, and the limit opening is used for the installation of the limit portion 120 and for the limit portion 120 to pass through, and the limit portion 120 is rotatably connected to the limit opening, so that the limit portion 120 can be switched to two states of being clamped in the limit slot 222 and being detached from the limit slot 222 by rotating the limit portion 120.

[0038] Among them, when the technician operates the control box 220 to switch the isolating switch to the closed or open state, the technician operates the limit part 120 to rotate so that it rotates to one end that 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 isolating switch 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 penetrates and is connected to the vertical through hole. 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 protruding outward to form a connecting block 113, and the connecting block 113 is recessed inward 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 recessed inward 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 the transmission turntable 111 is preferably arranged to be convenient for shielding 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 that of a coupling), which is connected to the vertical through hole and the upper and lower ends are both extended out, so that it is convenient for connection and fixation; and the connecting block 113 is used for the installation of the limit portion 120, which is radially protruding on the outside of the transmission shaft 112, and the mounting groove 1131 is recessed on the connecting block 113 for the limit portion 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 installing groove 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 groove 222 when rotating, an opening groove 1111 is formed by radially inward depression on the transmission turntable 111. The opening groove 1111 is arranged corresponding to the installing groove 1131. Here, the corresponding arrangement means that the size and shape of the opening groove 1111 are consistent and are arranged along the vertical coaxial centerline. In this way, the installing groove 1131 and the opening groove 1111 are vertically connected, thereby forming the limiting opening for the limiting portion 120 to be freely rotated and adjusted.

[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 easy 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 component 30, which includes a locking mechanism, a lock card 320 and a mounting plate 330, wherein the locking mechanism has a retractable lock core 311, wherein the mounting plate 330 is fixed to the supporting 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. 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 supporting 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. Using the principle of electromagnetism, its lock core 311 can be extended or retracted through a switch. The specific principle is well known to those skilled in the art, so it will not be described in detail here. When the technician manipulates the limit part 120 to rotate until the control box 220 is in a 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 opening 321 of the lock card 320, thereby limiting the rotation of the vertical connecting rod 230 to further improve the limiting effect of the overall structure. When the technician manipulates the limit part 120 to rotate until the control box 220 is in an adjustment control state, the normally open contact of the electromagnetic lock 310 interlock can be unlocked at this time, so that it is 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 unlocking the limit function, and the technician can switch the closing and opening states by himself.

[0048] Furthermore, it also includes a locking ring 231, which 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 the locking card 320 is fixedly sleeved on the vertical connecting rod 230 by a bolt passing through the locking block 322 and extending into the locking card 320.

[0051] It should be noted that the U-shaped groove of the locking 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 locking 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 locking 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 a technician to operate. In a preferred embodiment, the length of the control handle 121 can be set to 400 mm to 500 mm, and technicians in this field can choose according to actual needs.

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

[0055] It can be understood 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 of an isolating switch, comprising an isolating switch body, wherein the isolating switch body comprises a supporting bracket, a control box and a vertical connecting rod, wherein the control box is fixed to one end of the supporting bracket, It is characterized in that It also includes a transmission limiting mechanism; wherein, The top of the control box is convexly arranged upward 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 concave to form a limit slot; The transmission limit mechanism comprises a transmission part and a limit part, wherein the transmission part is arranged above the limit block, the bottom of the transmission part is connected to the output end of the control box, the top of the transmission part is connected to the vertical connecting rod, the transmission part is provided with a limit opening, and the limit part is rotatably connected to the limit opening; Among them, when the limiting part is rotated to be locked in the limiting slot, the control box is in a stop limiting state; when the limiting part 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, It is 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 penetrates and is connected to the vertical through hole. 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 protruding outward to form a connecting block, and the connecting block is recessed inward to form a mounting groove for installing the limiting part. The limiting part is rotatably connected in the mounting groove, and the transmission turntable is radially recessed inward 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, It is characterized in that The limiting part includes a control handle and a buckle plate, the buckle plate is rotatably connected to the mounting groove, and the control handle is fixedly connected to one end of the buckle plate.

4. The isolating switch limit interlocking structure according to claim 1, It is characterized in that It also includes an interlocking component, 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 to the supporting 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, It is characterized in that The locking mechanism is an electromagnetic lock.

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

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

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