A rear door interlock mechanism

Abstract

The utility model relates to the switchgear door interlock application technical field especially relates to a kind of grounding rear door interlock mechanism.A kind of grounding rear door interlock mechanism, characterized by, including: support fixed seat and sliding web, the sliding web one side end is provided with lock plate end hook, the lock plate end hook one side is close to with the connecting lock pin resistance and is engaged, the sliding web is fixed in support fixed seat interior, the sliding web is provided with return spring, control is carried out to sliding web by return spring and external force, and then control lock plate end hook and the connecting lock pin whether to engage and separate.By simplifying the connecting component structure of support fixed seat and sliding web, the whole grounding rear door interlock mechanism assembly is simple, simultaneously, the reciprocating motion of sliding web is more smooth.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet door interlocking application technology, and in particular to a grounded rear door interlocking mechanism. Background Technology

[0002] With the rapid development of the power application industry, the application of high-voltage switchgear is becoming increasingly widespread. In high-voltage switchgear, the rear door interlocking device is an important safety device. However, the existing conventional rear door interlocking devices are relatively complex in design because they need to generate joint transmission actions at both the front and rear ends of the device. This makes the overall design of the rear door interlocking device more complicated and the assembly process more complicated. In addition, during the reciprocating linkage opening and closing process, in extreme cases, the rear door interlocking device may experience difficulties in engaging or delays in disengaging from the locking bolt, resulting in a decrease in the sensitivity of the overall linkage action. Utility Model Content

[0003] The technical solution of this utility model is as follows: a grounding rear door interlocking mechanism, characterized in that it includes: a supporting fixed base and a sliding connecting plate, a locking plate end hook is provided at one end of the sliding connecting plate, one side of the locking plate end hook is close to and engaged with a connecting lock pin, the sliding connecting plate is fixed inside the supporting fixed base, and a return spring is provided on the sliding connecting plate. The return spring and external force control the sliding connecting plate, thereby controlling whether the locking plate end hook and the connecting lock pin are engaged and disengaged.

[0004] Optionally, the sliding connecting plate is provided with a plurality of second spring hook seats on the side away from the locking plate end hook, and a first spring hook seat is provided at the lower part of one end of the support fixing seat. The return spring uses second spring hook seats at different positions according to the actual elastic force feedback requirements.

[0005] Optionally, the support mounting base is provided with multiple fixed installation threaded holes on the side near the lock plate end hook, for fixing the support mounting base to the inner wall of the cabinet.

[0006] Optionally, the support fixing seat is provided with a third sliding groove on the side near the return spring, and a first sliding groove is provided on the side of the third sliding groove that is parallel and at the same height. A second sliding groove is provided on the upper part of the first sliding groove, and the second sliding groove is parallel to the third sliding groove to facilitate the sliding movement of the sliding connecting plate.

[0007] Optionally, a rotary limiting arm is provided on one side of the sliding connecting plate, and one end of the rotary limiting arm slides through the second sliding groove.

[0008] Optionally, an installation clearance groove is provided on the lower side of the first slide groove, and multiple bends are provided inside the support fixing seat. The installation clearance groove is located at one of the bends, and the installation clearance groove facilitates the rapid sliding of the sliding connecting plate.

[0009] Optionally, the support and fixing base is integrally formed by bending multiple times with a bending machine.

[0010] Optionally, a rotating block is also provided on the locking plate end hook, and a fixing rotating shaft screw is provided at the middle position of the upper part of the sliding connecting plate. The fixing rotating shaft screw is fixedly connected to the rotating block and the sliding connecting plate.

[0011] Optionally, the bottom of the rotating block is provided with a rotating block base, and the rotating block base and the upper part of the rotating block are in a trapezoidal shape, with the upper part being smaller and the lower part being larger, to improve the response speed of the rotating block returning to its original position.

[0012] Optionally, a limiting post is provided on the lower side inside the connecting locking pin, and the space area formed between adjacent limiting posts facilitates engagement and contact with the locking plate end hook.

[0013] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0014] In this utility model, firstly, the support and fixing base is bent in multiple places and a first sliding groove, a second sliding groove, and a third sliding groove are provided. The second sliding groove and the third sliding groove are parallel to each other, so that the sliding connecting plate can move back and forth very smoothly inside the support and fixing base. At the same time, in the assembly process, it can be completed simply by insertion, simplifying the assembly process.

[0015] Secondly, the bottom of the rotating block is equipped with a rotating block base. The rotating block base and the upper part of the rotating block are in the shape of a trapezoid, with the upper part being smaller and the lower part being larger. Since the size of the upper part of the rotating block is smaller than that of the lower part of the rotating block base, the gap formed between the upper part of the rotating block and the sliding connecting plate front arm effectively avoids collision and jamming between the rotating block and the sliding connecting plate during the movement of the rotating block, thereby improving the response speed of the rotating block's return. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the connection between the present invention and the connecting locking pin in an embodiment;

[0018] Figure 3 for Figure 1 A side view of the three-dimensional structure;

[0019] Figure 4 This is a three-dimensional view of the support and fixing base in this utility model example;

[0020] Figure 5 This is a schematic diagram of the combination of the sliding connecting plate and the locking plate end hook in an embodiment of this utility model.

[0021] Reference numerals: 1-Support fixing seat; 101-Fixed mounting threaded hole; 102-First slide groove; 1021-Mounting clearance groove; 103-Second slide groove; 104-Third slide groove; 105-First spring hook seat; 2-Sliding connecting plate; 201-Return spring; 202-Second spring hook seat; 203-Fixed rotating shaft screw; 204-Rotation limit arm; 3-Locking plate end hook; 301-Rotating block; 3011-Rotating block base; 4-Connecting locking pin; 401-Limiting post; Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0023] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] This embodiment proposes a grounded rear door interlocking mechanism, such as... Figures 1 to 5As shown, it includes: a support base 1 and a sliding connecting plate 2. A locking plate end hook 3 is provided on one end of the sliding connecting plate 2. One side of the locking plate end hook 3 is close to and engaged with the connecting locking pin 4. The sliding connecting plate 2 is fixed inside the support base 1. A return spring 201 is provided on the sliding connecting plate 2. The return spring 201 and external force control the sliding connecting plate 2, thereby controlling whether the locking plate end hook 3 and the connecting locking pin 4 are engaged and disengaged.

[0028] The sliding connecting plate 2 has multiple second spring hook seats 202 on the side away from the locking plate end hook 3, and the lower part of one end of the support fixing seat 1 has a first spring hook seat 105. The return spring 201 uses second spring hook seats 202 at different positions according to the actual elastic force feedback requirements. The support fixing seat 1 has multiple fixing threaded holes 101 on the side near the locking plate end hook 3 for fixing the support fixing seat 1 to the inner wall of the cabinet.

[0029] The support fixing seat 1 is provided with a third slide groove 104 on the side near the return spring 1. A first slide groove 102 is provided on the side of the third slide groove 104 that is parallel and at the same height. A second slide groove 103 is provided on the upper part of the first slide groove 102. The second slide groove 103 is parallel to the third slide groove 104, which facilitates the sliding connecting plate 2 to slide.

[0030] A rotation limiting arm 204 is provided on one side of the sliding connecting plate 2, and one end of the rotation limiting arm 204 slides within the second sliding groove 103. A mounting clearance groove 1021 is provided on the lower side of the first sliding groove 102. The support fixing seat 1 has multiple bends inside, and the mounting clearance groove 1021 is located at one of the bends. The mounting clearance groove 1021 facilitates the rapid sliding of the sliding connecting plate 2.

[0031] The support base 1 is integrally formed by multiple bending processes using a bending machine. A rotating block 301 is also provided on the locking plate end hook 3. A fixing shaft screw 203 is located at the middle of the upper part of the sliding connecting plate 2, and the fixing shaft screw 203 is fixedly connected to the rotating block 301 and the sliding connecting plate 2. A rotating block base 3011 is provided at the bottom of the rotating block 301. The rotating block base 3011 and the upper part of the rotating block 301 are trapezoidal in shape, with a smaller upper part and a larger lower part, enhancing the response speed of the rotating block 301's return. A limiting post 401 is provided on the lower side inside the connecting locking pin 4. The space formed between adjacent limiting posts 401 facilitates engagement and contact with the locking plate end hook 3.

[0032] In the actual assembly process, first connect and assemble the locking plate end hook 3 with the sliding connecting plate 2, then insert the assembled sliding connecting plate 2 into the inside of the support fixing seat 1, and then connect the two ends of the return spring 201 to the first spring hook seat 105 and the second spring hook seat 202 respectively.

[0033] The support base 1 is bent in multiple places and has a first slide groove 102, a second slide groove 103, and a third slide groove 104. The second slide groove 103 and the third slide groove 104 are parallel to each other, so that the sliding connecting plate 2 can move back and forth very smoothly inside the support base 1. At the same time, in the assembly process, it can be completed simply by inserting it, simplifying the assembly process.

[0034] Secondly, the bottom of the rotating block 301 is provided with a rotating block base 3011. The rotating block base 3011 and the upper part of the rotating block 301 are in the shape of a trapezoid, with the upper part being smaller and the lower part being larger. Since the upper part of the rotating block 301 is smaller than the lower part of the rotating block base 3011, the gap formed between the upper part of the rotating block 301 and the forearm of the sliding connecting plate 2 effectively avoids collision and jamming between the rotating block 301 and the sliding connecting plate 2 during the movement, which would cause the locking plate end hook 3 and the connecting locking pin 4 to be connected and disconnected unsmoothly.

[0035] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A grounded rear door interlocking mechanism, characterized in that, include: The support base and the sliding connecting plate are provided. A locking plate end hook is provided on one end of the sliding connecting plate. One side of the locking plate end hook is close to and engaged with the connecting locking pin. The sliding connecting plate is fixed inside the support base. A return spring is provided on the sliding connecting plate. The sliding connecting plate is controlled by the return spring and external force, thereby controlling whether the locking plate end hook and the connecting locking pin are engaged and disengaged.

2. The grounding rear door interlocking mechanism according to claim 1, characterized in that: The sliding connecting plate is provided with multiple second spring hook seats on the side away from the locking plate end hook, and a first spring hook seat is provided at the lower part of one end of the support fixing seat. The return spring uses second spring hook seats at different positions according to the actual elastic force feedback requirements.

3. The grounding rear door interlocking mechanism according to claim 1, characterized in that: The support mounting base has multiple threaded holes near the end hook of the lock plate for fixing the support mounting base to the inner wall of the cabinet.

4. The grounding rear door interlocking mechanism according to claim 1, characterized in that: The support fixing seat is provided with a third sliding groove on the side near the return spring. A first sliding groove is provided on the side of the third sliding groove that is parallel and at the same height. A second sliding groove is provided on the upper part of the first sliding groove. The second sliding groove and the third sliding groove are parallel to each other, which facilitates the sliding movement of the sliding connecting plate.

5. A grounding rear door interlocking mechanism according to claim 4, characterized in that: A rotary limiting arm is provided on one side of the sliding connecting plate, and one end of the rotary limiting arm slides through the second sliding groove.

6. A grounding rear door interlocking mechanism according to claim 4, characterized in that: The lower side of the first slide groove is provided with an installation clearance groove. The support fixing seat has multiple bends inside, and the installation clearance groove is located at one of the bends. The installation clearance groove facilitates the rapid sliding of the sliding connecting plate.

7. A grounding rear door interlocking mechanism according to claim 6, characterized in that: The support and fixing base is manufactured by bending multiple times in one piece using a bending machine.

8. The grounding rear door interlocking mechanism according to claim 1, characterized in that: The locking plate end hook is also provided with a rotating block, and a fixed rotating shaft screw is provided at the middle position of the upper part of the sliding connecting plate. The fixed rotating shaft screw is fixedly connected to the rotating block and the sliding connecting plate.

9. A grounding rear door interlocking mechanism according to claim 8, characterized in that: The bottom of the rotating block is provided with a rotating block base, and the rotating block base and the upper part of the rotating block are in a trapezoidal shape, with the upper part being smaller and the lower part being larger, which improves the response speed of the rotating block returning to its original position.

10. A grounding rear door interlocking mechanism according to claim 1, characterized in that: The lower side of the connecting locking pin is provided with a limiting post, and the space formed between adjacent limiting posts facilitates engagement and contact with the locking plate end hook.

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