Drawer-type switchgear with mistake-proofing mechanical structure

Abstract

The present application belongs to the technical field of switch cabinet, disclose a drawer type switch cabinet with mistake proofing mechanical structure, including switch cabinet assembly, the drawer cabinet assembly in the process of inserting into the cabinet groove, through the engagement between the drawer cabinet assembly and the mistake proofing drive assembly, make the mistake proofing drive assembly drive the cabinet pin assembly to fall, through the falling of the cabinet pin assembly to lock the inserted drawer cabinet assembly, when the corresponding drawer cabinet assembly is inserted into the matching cabinet groove, the cabinet pin assembly can realize the mistake proofing locking of the drawer cabinet assembly, through the insertion of the inner pin rod in the locking blind hole, realize the locking of the drawer cabinet assembly in the cabinet groove, that is, matching locking, the drawer cabinet assembly of the present application is inserted into the unmatched cabinet groove, at this time, the position of the mistake proofing tooth moving arm is set forward or backward, at this time, the inner pin rod cannot be inserted into the locking blind hole, and locking cannot be realized, whether locking or not is used to judge whether the drawer cabinet assembly is inserted incorrectly, the present application integrates locking and incorrect insertion together, and simplifies the structure.

Description

Technical Field

[0001] This invention belongs to the field of switch cabinet technology, specifically relating to a drawer-type switch cabinet with a mechanical structure to prevent incorrect insertion. Background Technology

[0002] Drawer-type switchgear is widely used in power distribution systems due to its advantages such as compact structure, convenient maintenance, and high degree of modularity. However, some technical problems still exist in the practical use of existing drawer-type switchgear.

[0003] Chinese patent CN111817194B discloses a drawer-type switch cabinet, which achieves automatic push-pull and locking of the drawer through the cooperation of an electric push rod, elastic element, and baffle, improving the convenience and safety of operation. Although this structure solves the problem of difficult drawer push-pull and has a certain anti-theft capability, it does not address the issue of preventing incorrect insertion of the drawer within the cabinet. Therefore, it cannot prevent electrical connection errors or equipment damage caused by the drawer being mistakenly inserted into a mismatched compartment.

[0004] On the other hand, in switch cabinets with multiple drawers, each drawer typically has different electrical specifications or functions. If an operator mistakenly inserts a drawer into the wrong slot, it could lead to a short circuit, equipment malfunction, or even a safety accident after power is applied. Although there are independent anti-misinsertion mechanisms in existing technologies, they are often complex in structure, occupy a lot of space, and are separate from the drawer locking mechanism, increasing manufacturing costs and assembly difficulty.

[0005] Therefore, how to design a drawer-type switch cabinet that is compact, easy to operate, and has reliable anti-misinsertion and locking functions has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] To address the problems mentioned in the background section, this invention provides a drawer-type switch cabinet with a mechanical structure that prevents incorrect insertion, featuring a compact structure.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a drawer-type switch cabinet with an anti-misinsertion mechanical structure, comprising a switch cabinet assembly, wherein the switch cabinet assembly comprises a switch cabinet body, a cabinet slot and an arc-shaped slot, wherein the switch cabinet body is provided with a plurality of cabinet slots, and an arc-shaped slot is provided on one side of the cabinet slot; Each cabinet slot has a drawer assembly that slides inside. Multiple drawer assemblies are arranged longitudinally within the switch cabinet assembly. Each cabinet slot has a rotatable anti-misinsertion drive assembly. One end of the anti-misinsertion drive assembly has a cabinet pin assembly, and the other end has a locking assembly. When a drawer assembly is inserted into a cabinet slot, the engagement between the drawer assembly and the anti-misinsertion drive assembly causes the anti-misinsertion drive assembly to drive the cabinet pin assembly to fall. The falling of the cabinet pin assembly locks the inserted drawer assembly. Only when the corresponding drawer assembly is inserted into the matching cabinet slot can the cabinet pin assembly achieve the anti-misinsertion locking of this drawer assembly.

[0008] In a preferred embodiment of a drawer-type switch cabinet with an anti-misinsertion mechanical structure, the drawer cabinet assembly includes a drawer cabinet body, a drawer seat plate, a locking blind hole, an anti-misinsertion toothed moving arm, a vertical arm, and a handle. The drawer seat plate is fixedly installed at the bottom of the drawer cabinet body, the locking blind hole is opened at one end of the drawer seat plate, the vertical arm is fixedly installed at the other end of the drawer seat plate, the anti-misinsertion toothed moving arm is fixedly installed at the top of the vertical arm, and the handle is fixedly installed at the front end of the drawer cabinet body. The drawer cabinet body and the drawer seat plate are inserted into the switch cabinet body through a cabinet groove.

[0009] In a preferred embodiment of a drawer-type switchgear with an anti-misinsertion mechanical structure, the anti-misinsertion drive assembly includes a drive shaft, an incomplete gear, a drive gear, and a locking ratchet. The incomplete gear is fixedly mounted at one end of the drive shaft, and the drive gear and the locking ratchet are fixedly mounted at the other end of the drive shaft. Each cabinet slot is provided with a set of anti-misinsertion drive assemblies, and the drive shaft is rotatably mounted on the top of the cabinet slot via a bearing.

[0010] In a preferred embodiment of a drawer-type switchgear with an anti-misinsertion mechanical structure, the cabinet pin assembly includes a supporting cross arm, a push spring, a push sliding rod, a push bottom arm, an outer pin tube, an inner pin rod, a driven toothed arm, and a push top plate. The push sliding rod is disposed through one end of the supporting cross arm, the push top plate is fixedly disposed at the top of the push sliding rod, the push bottom arm is fixedly disposed at the bottom of the push sliding rod, the outer pin tube is fixedly disposed on the push bottom arm, the inner pin rod is telescopically disposed within the outer pin tube, the driven toothed arm is fixedly disposed at the end of the push bottom arm away from the push sliding rod, the push spring is sleeved on the top of the push sliding rod, and the cabinet pin assembly is disposed at one end inside the cabinet slot. At this time, the end of the supporting cross arm away from the push sliding rod is fixedly disposed on the slot wall at the rear end of the cabinet slot; the locking blind hole is located directly below the inner pin rod.

[0011] In a preferred embodiment of a drawer-type switchgear with an anti-misinsertion mechanical structure, the locking assembly includes a handle, a connecting rod, a back plate spring, a back plate, and a locking pawl. The back plate is fixedly mounted on the top of the locking pawl, the connecting rod is fixedly mounted on one side of the top of the back plate, the back plate spring is fixedly mounted on one end of the back plate, the handle is fixedly mounted on the end of the connecting rod away from the back plate, the locking assembly is rotatably mounted on the side of the cabinet slot away from the cabinet pin assembly, the locking pawl is rotatably connected to the side wall of the cabinet slot via a bearing, the end of the back plate spring away from the back plate is fixedly mounted on a support plate provided on the side wall of the cabinet slot, the connecting rod slides in an arc-shaped groove, and the handle is located on the outside of the switchgear body.

[0012] In a preferred embodiment of a drawer-type switch cabinet with an anti-misinsertion mechanical structure, each cabinet slot is provided with a set of anti-misinsertion drive components, a set of cabinet pin components and a set of locking components. The anti-misinsertion drive components, cabinet pin components and locking components in each cabinet slot are arranged in different longitudinal positions. The anti-misinsertion toothed arm and locking blind hole on each drawer cabinet component are arranged in different longitudinal positions on the drawer seat plate.

[0013] In a preferred embodiment of a drawer-type switch cabinet with an anti-misinsertion mechanical structure, the locking pawl is located on one side of the locking ratchet. Through the pushing action of the back plate spring on the back plate, the locking pawl abuts against the locking ratchet. Through the unidirectional limiting of the locking pawl and the locking ratchet, the anti-misinsertion drive assembly rotates only in one direction.

[0014] In a preferred embodiment of a drawer-type switch cabinet with an anti-misinsertion mechanical structure, the cabinet pin assembly is located on one side of the incomplete gear, the driven gear arm meshes with the incomplete gear, the top of the push spring abuts against the push plate, and the bottom of the push spring abuts against the support cross arm. Through the push of the push plate by the push spring, the driven gear arm is in an upward structure on the support cross arm.

[0015] In a preferred embodiment of a drawer-type switchgear with a reverse insertion prevention mechanism, a spring is fixedly installed between the outer pin tube and the inner pin rod, and a spring-loaded pin structure is formed between the outer pin tube and the inner pin rod.

[0016] In a preferred embodiment of a drawer-type switch cabinet with an anti-misinsertion mechanical structure, when the drawer cabinet assembly is inserted into the cabinet slot, the anti-misinsertion toothed arm meshes with the drive gear. By the anti-misinsertion toothed arm sliding under and meshing with the drive gear, the drive gear drives the drive shaft to rotate counterclockwise. At this time, the drive shaft drives the inner pin rod to insert into the locking blind hole through the incomplete gear and the driven toothed arm. The insertion of the inner pin rod into the locking blind hole achieves the locking of the drawer cabinet assembly in the cabinet slot.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. During the insertion of the drawer cabinet assembly into the cabinet slot, the engagement between the drawer cabinet assembly and the anti-misinsertion drive assembly causes the anti-misinsertion drive assembly to drive the cabinet pin assembly to fall. The falling of the cabinet pin assembly locks the inserted drawer cabinet assembly. Only when the corresponding drawer cabinet assembly is inserted into the matching cabinet slot can the cabinet pin assembly achieve the anti-misinsertion locking of this drawer cabinet assembly. The inner pin rod is inserted into the locking blind hole to achieve the locking of the drawer cabinet assembly in the cabinet slot, that is, matching locking.

[0018] 2. When the drawer cabinet component of this invention is inserted into a mismatched cabinet slot, the anti-misalignment toothed moving arm is positioned too far forward or too far back. At this time, the inner pin rod cannot be inserted into the locking blind hole, that is, it cannot be locked. Whether the drawer cabinet component is misaligned is determined by whether it is locked. This invention integrates locking and misalignment into one, simplifying the structural design.

[0019] 3. The other end of the anti-misinsertion drive assembly of the present invention is provided with a locking assembly. Through the pushing action of the back plate spring on the back plate, the locking pawl abuts against the locking ratchet. Through the one-way limiting of the locking pawl and the locking ratchet, the anti-misinsertion drive assembly can only rotate in one direction. That is, when the anti-misinsertion drive assembly drives the inner pin rod on the cabinet pin assembly to be inserted into the locking blind hole, the anti-misinsertion drive assembly cannot rotate in the opposite direction. At this time, the inner pin rod can be stably inserted into the locking blind hole, thereby solving the problem of preventing the drawer from falling back after the drawer cabinet assembly is inserted and locked. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the switch cabinet assembly of the present invention; Figure 3 This is a perspective view of some components of the present invention; Figure 4 This is a perspective view of the drawer cabinet component of the present invention; Figure 5 This is a perspective view of the anti-misinsertion drive component of the present invention; Figure 6 This is a perspective view of the counter pin assembly of the present invention; Figure 7 This is a perspective view of the locking component of the present invention.

[0021] In the diagram: 100, switch cabinet assembly; 101, switch cabinet body; 102, cabinet groove; 103, arc-shaped groove; 200, drawer cabinet assembly; 201, drawer cabinet body; 202, drawer seat; 203, locking blind hole; 204, anti-misalignment toothed lever arm; 205, vertical arm; 206, handle; 300, anti-misalignment drive assembly; 301, drive shaft; 302, incomplete gear; 303, drive gear. 304. Locking ratchet; 400. Cabinet pin assembly; 401. Support crossarm; 402. Push spring; 403. Push sliding rod; 404. Push bottom arm; 405. Outer pin tube; 406. Inner pin rod; 407. Driven gear arm; 408. Push top plate; 500. Locking assembly; 501. Handle; 502. Connecting rod; 503. Back plate spring; 504. Back plate; 505. Locking pawl. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-7 As shown, the present invention provides a drawer-type switch cabinet with an anti-misinsertion mechanical structure, including a switch cabinet assembly 100. The switch cabinet assembly 100 includes a switch cabinet body 101, a cabinet slot 102 and an arc-shaped slot 103. The switch cabinet body 101 is provided with a plurality of cabinet slots 102, and an arc-shaped slot 103 is provided on one side of the cabinet slot 102. Each cabinet slot 102 has a drawer cabinet assembly 200 slidably installed inside. Multiple drawer cabinet assemblies 200 are arranged longitudinally within the switch cabinet assembly 100. In this embodiment, longitudinal refers to the height direction. Each cabinet slot 102 is rotatably equipped with an anti-misinsertion drive assembly 300. One end of the anti-misinsertion drive assembly 300 is provided with a cabinet pin assembly 400, and the other end of the anti-misinsertion drive assembly 300 is provided with a locking assembly 500. During the process of inserting the drawer cabinet assembly 200 into the cabinet slot 102, the engagement between the drawer cabinet assembly 200 and the anti-misinsertion drive assembly 300 causes the anti-misinsertion drive assembly 300 to drive the cabinet pin assembly 400 to fall. The falling of the cabinet pin assembly 400 locks the inserted drawer cabinet assembly 200. Only when the corresponding drawer cabinet assembly 200 is inserted into the matching cabinet slot 102 can the cabinet pin assembly 400 achieve the anti-misinsertion locking of the drawer cabinet assembly 200. In this embodiment, each cabinet slot 102 is provided with a set of anti-misinsertion drive components 300, a set of cabinet pin components 400 and a set of locking components 500.

[0024] In this embodiment, the anti-misinsertion drive component 300, cabinet pin component 400 and locking component 500 in each cabinet slot 102 are arranged in different positions in the longitudinal direction, that is, the installation positions of the anti-misinsertion drive component 300, cabinet pin component 400 and locking component 500 in each cabinet slot 102 are different in the height direction of the switch cabinet.

[0025] In a preferred embodiment, please refer to Figure 4 The drawer cabinet assembly 200 includes a drawer cabinet body 201, a drawer seat 202, a locking blind hole 203, an anti-misalignment toothed moving arm 204, a vertical arm 205, and a handle 206. The drawer seat 202 is fixedly installed at the bottom of the drawer cabinet body 201. The locking blind hole 203 is opened at one end of the drawer seat 202. The vertical arm 205 is fixedly installed at the other end of the drawer seat 202. The anti-misalignment toothed moving arm 204 is fixedly installed at the top of the vertical arm 205. The handle 206 is fixedly installed at the front end of the drawer cabinet body 201.

[0026] In this embodiment, the drawer cabinet 201 and the drawer seat 202 are inserted into the switch cabinet 101 through the cabinet groove 102.

[0027] In this embodiment, the anti-misalignment insert arm 204 and the locking blind hole 203 on each drawer cabinet assembly 200 are positioned differently in the longitudinal direction of the drawer seat plate 202.

[0028] In this embodiment, when the drawer cabinet assembly 200 is inserted into the cabinet slot 102, the anti-misalignment inserting toothed arm 204 meshes with the drive gear 303.

[0029] In this embodiment, the anti-misalignment shearing arm 204 slides under and meshes with the drive gear 303, causing the drive gear 303 to drive the drive shaft 301 to rotate counterclockwise.

[0030] In this embodiment, the drive shaft 301 drives the inner pin 406 to be inserted into the locking blind hole 203 via the incomplete gear 302 and the driven gear arm 407.

[0031] In this embodiment, the drawer cabinet assembly 200 is locked in the cabinet groove 102 by inserting the inner pin 406 into the locking blind hole 203.

[0032] In a preferred embodiment, please refer to Figure 5 The anti-misinsertion drive assembly 300 includes a drive shaft 301, an incomplete gear 302, a drive gear 303, and a locking ratchet 304. The incomplete gear 302 is fixedly disposed at one end of the drive shaft 301, and the drive gear 303 and the locking ratchet 304 are fixedly disposed at the other end of the drive shaft 301.

[0033] In this embodiment, each cabinet slot 102 is provided with a set of anti-misinsertion drive components 300.

[0034] In this embodiment, the drive shaft 301 is rotatably mounted on the top of the cabinet slot 102 via a bearing.

[0035] In this embodiment, the locking pawl 505 is disposed on one side of the locking ratchet 304.

[0036] In this embodiment, the locking pawl 505 abuts against the locking ratchet 304 by the pushing action of the back plate spring 503 on the back plate 504.

[0037] In this embodiment, the anti-misinsertion drive assembly 300 rotates only in one direction by the one-way limiting of the locking pawl 505 and the locking ratchet 304.

[0038] In a preferred embodiment, please refer to Figure 6 The cabinet pin assembly 400 includes a supporting cross arm 401, a push spring 402, a push sliding rod 403, a push bottom arm 404, an outer pin tube 405, an inner pin rod 406, a driven gear arm 407, and a push top plate 408. The push sliding rod 403 is disposed through one end of the supporting cross arm 401. The push top plate 408 is fixedly disposed on the top of the push sliding rod 403. The push bottom arm 404 is fixedly disposed on the bottom of the push sliding rod 403. The outer pin tube 405 is fixedly disposed on the push bottom arm 404. The inner pin rod 406 is telescopically slidably disposed inside the outer pin tube 405. The driven gear arm 407 is fixedly disposed on the end of the push bottom arm 404 away from the push sliding rod 403. The push spring 402 is sleeved on the top of the push sliding rod 403.

[0039] In this embodiment, the cabinet pin assembly 400 is located at one end of the cabinet slot 102.

[0040] In this embodiment, the end of the support arm 401 away from the push sliding rod 403 is fixedly installed on the groove wall at the rear end of the cabinet groove 102; the locking blind hole 203 is located directly below the inner pin rod 406, and the vertically falling inner pin rod 406 can be inserted into the locking blind hole 203.

[0041] In this embodiment, the counter pin assembly 400 is disposed on one side of the incomplete gear 302.

[0042] In this embodiment, the driven gear arm 407 meshes with the incomplete gear 302.

[0043] In this embodiment, the top of the push spring 402 abuts against the push plate 408, and the bottom of the push spring 402 abuts against the support cross arm 401.

[0044] In this embodiment, the driven toothed arm 407 is in an upward position on the supporting cross arm 401 by the pushing of the pushing plate 408 by the pushing spring 402.

[0045] In this embodiment, a spring is fixedly provided between the outer pin tube 405 and the inner pin rod 406, and a spring-loaded pin structure is formed between the outer pin tube 405 and the inner pin rod 406 through the spring.

[0046] In a preferred embodiment, please refer to Figure 7 The locking assembly 500 includes a handle 501, a connecting rod 502, a back plate spring 503, a back plate 504, and a locking pawl 505. The back plate 504 is fixedly disposed on the top of the locking pawl 505, the connecting rod 502 is fixedly disposed on one side of the top of the back plate 504, the back plate spring 503 is fixedly disposed on one end of the back plate 504, and the handle 501 is fixedly disposed on the end of the connecting rod 502 away from the back plate 504.

[0047] In this embodiment, the locking component 500 is rotatably disposed on the side of the cabinet slot 102 away from the cabinet pin component 400.

[0048] In this embodiment, the locking pawl 505 is rotatably connected to the side wall of the cabinet slot 102 via a bearing.

[0049] In this embodiment, the end of the back plate spring 503 away from the back plate 504 is fixedly mounted on a support plate provided on the side wall of the cabinet slot 102.

[0050] In this embodiment, the connecting rod 502 slides within the arcuate groove 103.

[0051] In this embodiment, the handle 501 is located on the outside of the switch cabinet 101.

[0052] The working principle of this invention is as follows: In existing drawer cabinet components 200, when inserted into switch cabinet components 100, the existing anti-misinsertion mechanical structure and locking mechanical structure are separate and not integrated, resulting in a cumbersome structure. To overcome this problem, in this invention, during the insertion of the drawer cabinet component 200 into the cabinet slot 102, the engagement between the drawer cabinet component 200 and the anti-misinsertion drive component 300 causes the anti-misinsertion drive component 300 to drive the cabinet pin component 400 to fall. The falling of the cabinet pin component 400 locks the inserted drawer cabinet component 200. When the corresponding drawer cabinet component 200 is inserted into the matching cabinet slot 102, the cabinet pin component 400... This is how the anti-misinsertion locking mechanism for the drawer cabinet assembly 200 is achieved. Specifically, when the drawer cabinet assembly 200 is inserted into the matching cabinet slot 102, during the process of the drawer cabinet body 201 being inserted into the switch cabinet body 101 through the cabinet slot 102, the movement of the anti-misinsertion toothed moving arm 204 below the drive gear 303 causes the drive gear 303 to drive the drive shaft 301 to rotate counterclockwise. At this time, the drive shaft 301, through the incomplete gear 302 and the driven toothed arm 407, drives the inner pin 406 to insert into the locking blind hole 203. The insertion of the inner pin 406 into the locking blind hole 203 achieves the locking of the drawer cabinet assembly 200 in the cabinet slot 102, i.e., matching locking.

[0053] Based on the above, when the drawer assembly 200 is inserted into the mismatched cabinet slot 102, the position of the anti-misalignment toothed arm 204 is either too far forward or too far back. When the anti-misalignment toothed arm 204 is positioned too far back, the angle at which the anti-misalignment toothed arm 204 drives the drive shaft 301 to rotate via the drive gear 303 is insufficient. Therefore, the inner pin 406 cannot be inserted into the locking blind hole 203, and locking cannot be achieved. Whether or not locking occurs is used to determine if the drawer assembly 200 is misaligned. Similarly, when the anti-misalignment toothed arm 204 is positioned too far forward, the anti-misalignment toothed arm 204... If the angle of rotation of the drive shaft 301 driven by the drive gear 303 is too large, the rotation angle of the incomplete gear 302 will also be too large. At this time, the toothless body of the incomplete gear 302 will rotate to the side of the driven gear arm 407. Due to the lack of toothless meshing, the driven gear arm 407 will be moved upward by the push spring 402. At this time, the inner pin 406 still cannot be inserted into the locking blind hole 203, that is, it cannot be locked. Whether the drawer cabinet assembly 200 is mis-inserted is determined by whether it is locked. This invention integrates locking and mis-insertion into one, simplifying the structural design.

[0054] It should be noted that the anti-misalignment toothed arm 204, locking blind hole 203 and incomplete gear 302 on each drawer cabinet assembly 200 are set in different positions, lengths and number of teeth. Similarly, the anti-misalignment drive assembly 300, cabinet pin assembly 400 and locking assembly 500 in each cabinet slot 102 are also set in different positions.

[0055] Based on the above, in order to solve the problem of preventing drawer retraction after the drawer assembly 200 is inserted and locked, the other end of the anti-misinsertion drive assembly 300 of the present invention is provided with a locking assembly 500. Specifically, the locking assembly 500 includes a handle 501, a connecting rod 502, a back plate spring 503, a back plate 504, and a locking pawl 505. The back plate 504 is fixedly disposed on the top of the locking pawl 505, the connecting rod 502 is fixedly disposed on one side of the top of the back plate 504, the back plate spring 503 is fixedly disposed on one end of the back plate 504, the handle 501 is fixedly disposed on the end of the connecting rod 502 away from the back plate 504, the locking assembly 500 is rotatably disposed on the side of the cabinet slot 102 away from the cabinet pin assembly 400, the locking pawl 505 is rotatably connected to the side wall of the cabinet slot 102 through a bearing, and the end of the back plate spring 503 away from the back plate 504 is fixedly disposed. On the support plate set on the side wall of the cabinet slot 102, the connecting rod 502 slides in the arc-shaped slot 103. The handle 501 is set on the outside of the switch cabinet body 101. In actual use, the locking pawl 505 is set on one side of the locking ratchet 304. Through the pushing action of the back plate spring 503 on the back plate 504, the locking pawl 505 abuts against the locking ratchet 304. Through the one-way limiting of the locking pawl 505 and the locking ratchet 304, the anti-misinsertion drive assembly 300 only rotates in one direction. That is, when the anti-misinsertion drive assembly 300 drives the inner pin rod 406 on the cabinet pin assembly 400 to be inserted into the locking blind hole 203, the anti-misinsertion drive assembly 300 cannot rotate in the opposite direction. At this time, the inner pin rod 406 can be stably inserted into the locking blind hole 203, thereby solving the problem of preventing the drawer from falling back after the drawer cabinet assembly 200 is inserted and locked.

[0056] When the drawer needs to be pulled out, the operator pulls the handle 501 outward, which drives the back plate 504 and locking pawl 505 to rotate against the elastic force of the back plate spring 503 through the connecting rod 502. This causes the locking pawl 505 to disengage from the locking ratchet 304. At this time, the anti-misinsertion drive assembly 300 can rotate in the opposite direction, and the inner pin 406 moves upward under the action of the push spring 402, releasing the lock on the drawer assembly 200.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drawer-type switchgear with a reverse insertion prevention mechanism, comprising a switchgear assembly (100), characterized in that: The switch cabinet assembly (100) includes a switch cabinet body (101), a cabinet slot (102) and an arc-shaped slot (103). The switch cabinet body (101) is provided with a plurality of cabinet slots (102), and an arc-shaped slot (103) is provided on one side of the cabinet slot (102). Each cabinet slot (102) has a drawer assembly (200) slidably disposed inside. Multiple drawer assemblies (200) are arranged longitudinally within the switch cabinet assembly (100). Each cabinet slot (102) has a rotatably disposed anti-misinsertion drive assembly (300). One end of the anti-misinsertion drive assembly (300) is provided with a cabinet pin assembly (400), and the other end of the anti-misinsertion drive assembly (300) is provided with a locking assembly (500). The drawer assembly (200) is inserted into the cabinet slot (102). During the process of 02), the engagement between the drawer cabinet assembly (200) and the anti-misinsertion drive assembly (300) causes the anti-misinsertion drive assembly (300) to drive the cabinet pin assembly (400) to fall. The falling of the cabinet pin assembly (400) locks the inserted drawer cabinet assembly (200). Only when the corresponding drawer cabinet assembly (200) is inserted into the matching cabinet slot (102) can the cabinet pin assembly (400) achieve the anti-misinsertion locking of the drawer cabinet assembly (200).

2. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 1, characterized in that: The drawer cabinet assembly (200) includes a drawer cabinet body (201), a drawer seat plate (202), a locking blind hole (203), an anti-misalignment toothed moving arm (204), a vertical arm (205), and a handle (206). The drawer seat plate (202) is fixedly installed at the bottom of the drawer cabinet body (201). The locking blind hole (203) is opened at one end of the drawer seat plate (202). The vertical arm (205) is fixedly installed at the other end of the drawer seat plate (202). The anti-misalignment toothed moving arm (204) is fixedly installed at the top of the vertical arm (205). The handle (206) is fixedly installed at the front end of the drawer cabinet body (201). The drawer cabinet body (201) and the drawer seat plate (202) are inserted into the switch cabinet body (101) through the cabinet groove (102).

3. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 2, characterized in that: The anti-misinsertion drive assembly (300) includes a drive shaft (301), an incomplete gear (302), a drive gear (303), and a locking ratchet (304). The incomplete gear (302) is fixedly disposed at one end of the drive shaft (301), and the drive gear (303) and the locking ratchet (304) are fixedly disposed at the other end of the drive shaft (301). Each cabinet slot (102) is provided with a set of anti-misinsertion drive assemblies (300). The drive shaft (301) is rotatably disposed at the top of the cabinet slot (102) through a bearing.

4. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 3, characterized in that: The cabinet pin assembly (400) includes a supporting cross arm (401), a push spring (402), a push sliding rod (403), a push bottom arm (404), an outer pin tube (405), an inner pin rod (406), a driven toothed arm (407), and a push top plate (408). The push sliding rod (403) is disposed through one end of the supporting cross arm (401). The push top plate (408) is fixedly disposed on the top of the push sliding rod (403). The push bottom arm (404) is fixedly disposed on the bottom of the push sliding rod (403). The outer pin tube (405) is fixedly disposed on the push bottom arm (404). The inner pin (406) is telescopically slidably disposed inside the outer pin tube (405). The driven toothed arm (407) is fixedly disposed at the end of the push bottom arm (404) away from the push sliding rod (403). The push spring (402) is sleeved on the top of the push sliding rod (403). The cabinet pin assembly (400) is disposed at one end of the cabinet slot (102). At this time, the end of the support cross arm (401) away from the push sliding rod (403) is fixedly disposed on the slot wall at the rear end of the cabinet slot (102). The locking blind hole (203) is located directly below the inner pin (406).

5. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 4, characterized in that: The locking assembly (500) includes a handle (501), a connecting rod (502), a back plate spring (503), a back plate (504), and a locking pawl (505). The back plate (504) is fixedly disposed on the top of the locking pawl (505). The connecting rod (502) is fixedly disposed on one side of the top of the back plate (504). The back plate spring (503) is fixedly disposed on one end of the back plate (504). The handle (501) is fixedly disposed on the connecting rod (502) away from the back plate (505). 4) At one end, the locking assembly (500) is rotatably disposed on the side of the cabinet slot (102) away from the cabinet pin assembly (400). The locking pawl (505) is rotatably connected to the side wall of the cabinet slot (102) through a bearing. The end of the back plate spring (503) away from the back plate (504) is fixedly disposed on the support plate disposed on the side wall of the cabinet slot (102). The connecting rod (502) slides in the arc groove (103). The handle (501) is disposed on the outside of the switch cabinet body (101).

6. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 5, characterized in that: Each cabinet slot (102) is provided with a set of anti-misinsertion drive components (300), a set of cabinet pin components (400) and a set of locking components (500). The anti-misinsertion drive components (300), cabinet pin components (400) and locking components (500) in each cabinet slot (102) are arranged in different positions in the longitudinal direction. The anti-misinsertion toothed arm (204) and the locking blind hole (203) on each drawer cabinet component (200) are arranged in different positions in the longitudinal direction of the drawer seat plate (202).

7. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 5, characterized in that: The locking pawl (505) is located on one side of the locking ratchet (304). Through the pushing action of the back plate spring (503) on the back plate (504), the locking pawl (505) abuts against the locking ratchet (304). Through the one-way limiting of the locking pawl (505) and the locking ratchet (304), the anti-misinsertion drive assembly (300) rotates only in one direction.

8. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 5, characterized in that: The cabinet pin assembly (400) is located on one side of the incomplete gear (302). The driven gear arm (407) meshes with the incomplete gear (302). The top of the push spring (402) abuts against the push plate (408), and the bottom of the push spring (402) abuts against the support cross arm (401). Through the push of the push plate (408) by the push spring (402), the driven gear arm (407) is in an upward structure on the support cross arm (401).

9. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 5, characterized in that: A spring is fixedly installed between the outer pin tube (405) and the inner pin rod (406), and a spring-loaded pin structure is formed between the outer pin tube (405) and the inner pin rod (406) through the spring.

10. The drawer-type switch cabinet with anti-misinsertion mechanical structure according to claim 5, characterized in that: When the drawer assembly (200) is inserted into the cabinet slot (102), the anti-misalignment toothed moving arm (204) meshes with the drive gear (303). The anti-misalignment toothed moving arm (204) slides under the drive gear (303) and meshes with it, causing the drive gear (303) to drive the drive shaft (301) to rotate counterclockwise. At this time, the drive shaft (301) drives the inner pin (406) to be inserted into the locking blind hole (203) through the incomplete gear (302) and the driven toothed arm (407). The inner pin (406) is inserted into the locking blind hole (203) to lock the drawer assembly (200) in the cabinet slot (102).

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