A drawer type switch cabinet anti-misoperation device with mechanical interlocking

Abstract

The utility model relates to drawer type switch cabinet technical field, and disclose a drawer type switch cabinet anti -misoperation device with mechanical interlock, solved the problem that the current locking pin is easy to loosen, it includes support and incoming line plug operating hole, the plug operating hole is equipped with the pinhole on, the outside of support is equipped with the anti -misoperation mechanism, the anti -misoperation mechanism includes the mounting plate fixed in the outside of support, and the symmetrical fixed connection of mounting plate and support has two guide posts, and the guide plate is movably connected between the two guide posts, and the side close to the pinhole of guide plate is fixedly connected with the locking pin, the utility model discloses, the locking pin is conveniently removed and inserted into the incoming line plug operating hole or from the incoming line plug operating hole, and through the cooperation between handle, pull rod, spring, slide, L type round rod, square and square frame, can lock the sleeve plate and avoid its arbitrary rotation, thereby being convenient for the fixed locking pin and avoiding its loosening.

Description

Technical Field

[0001] This utility model belongs to the technical field of drawer-type switch cabinets, specifically a drawer-type switch cabinet anti-misoperation device with mechanical interlock. Background Technology

[0002] Drawer-type switchgear is an enclosed power distribution device made of steel plates. The electrical components of its incoming and outgoing circuits are installed in removable drawers, forming independent functional units. This equipment uses a grounded metal or plastic functional plate to separate the busbars, functional units, and cables into three independent areas. Isolation measures are implemented between each unit, effectively improving safety and reliability. As a core device in low-voltage power distribution systems, its modular design offers high interchangeability and is suitable for industrial and mining enterprises and high-rise building power distribution centers with high requirements for power supply stability. However, without interlocking devices, when the power supply drawer unit is in the working position and the circuit breaker is closed, it is easy to cause misoperation such as disconnection of the incoming plug with power, leading to arcing short circuits and power outages, damaging the incoming plug and the busbars it is connected to. Therefore, it is necessary to install appropriate anti-misoperation devices in accordance with electrical equipment safety regulations. According to the patent document with authorization announcement number CN101425406B and titled "Anti-misoperation interlocking device for a low-voltage drawer-type switchgear," it includes an interlocking crank arm, a hanging pin, a locking pin, a locking pin bracket, an inlet plug operating hole, and a locking pin hole. An interlocking control handle is fitted onto the upper end of the interlocking crank arm, and the interlocking crank arm and the interlocking control handle form a fixed angle of 45 degrees. The lower end of the interlocking crank arm is connected to the end of the locking pin via a hanging pin. A locking pin bracket is provided in the middle of the locking pin, and the locking pin reciprocates on the locking pin bracket through an inner hole. A locking pin hole is provided at the top of the locking pin, next to the main inlet plug operating hole, and the size of the locking pin hole should be sufficient for the locking pin to pass through. When the inlet plug is in the fully inserted position, the top of the locking pin is locked inside the inlet plug operating hole through the locking pin hole. However, the following defects still exist:

[0003] Although it can rotate the interlock control handle to insert the locking pin through the locking pin hole into the inlet plug operating hole and completely lock the inlet plug operating hole, the interlock control handle is easily touched by the outside and rotated arbitrarily, which can easily cause the locking pin to loosen. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a drawer-type switch cabinet anti-misoperation device with mechanical interlock, which effectively solves the problem that the locking pin is prone to loosening.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drawer-type switch cabinet anti-misoperation device with mechanical interlock, including a bracket and an inlet plug operation hole, the inlet plug operation hole is provided with a pin hole, and an anti-misoperation mechanism is provided on the outside of the bracket;

[0006] The anti-misoperation mechanism includes a mounting plate fixed to the outside of the bracket. Two guide posts are symmetrically fixedly connected between the mounting plate and the bracket. A guide plate is movably sleeved between the two guide posts. A locking pin is fixedly connected to the side of the guide plate near the pin hole. The outer diameter of the locking pin is equal to the inner diameter of the pin hole.

[0007] Preferably, a rotating shaft is rotatably connected to the side of the mounting plate away from the bracket, a sleeve plate is fixedly sleeved on the outside of the rotating shaft, a drive rod is rotatably connected to the side of the sleeve plate away from the mounting plate, and the end of the drive rod away from the sleeve plate is rotatably connected to the guide plate.

[0008] Preferably, an L-shaped rod is fixedly connected to the side of the sleeve away from the mounting plate, a sliding plate is movably sleeved on the outside of the L-shaped rod, and a block is fixedly connected to the side of the sliding plate near the rotating shaft.

[0009] Preferably, an L-shaped plate is fixedly connected to the side of the mounting plate away from the bracket, and a square frame is fixedly connected to the side of the L-shaped plate close to the slide plate, with the square block inserted into the square frame.

[0010] Preferably, a side block is fixedly connected to the end of the L-shaped rod away from the sleeve plate, a pull rod is fixedly connected to the side of the slide plate near the side block, the end of the pull rod away from the slide plate passes through the side block and is fixedly connected to a handle, a spring is fixedly connected between the side block and the slide plate, and the spring is sleeved on the outside of the pull rod.

[0011] Preferably, a positioning rod one and a positioning rod two are fixedly connected to the side of the mounting plate away from the bracket, and a sleeve plate is located between the positioning rod one and the positioning rod two, with the sleeve plate abutting against the positioning rod one.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The engagement between the rotating shaft, sleeve plate, drive rod, guide plate, guide post and pin hole facilitates the movement of the locking pin into or out of the inlet plug operating hole. The engagement between the handle, pull rod, spring, slide plate, L-shaped round rod, square block and square frame locks the sleeve plate to prevent it from rotating arbitrarily, thus facilitating the fixation of the locking pin and preventing it from loosening.

[0014] 2. The positioning rods 1 and 2 work together to position the sleeve plate, which facilitates the quick insertion or removal of the locking pin into or from the inlet plug operating hole. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the anti-misoperation device for a drawer-type switchgear with mechanical interlock according to this utility model;

[0018] Figure 2 This is a schematic diagram of the anti-misoperation mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the mounting plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the skateboard structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the L-shaped plate structure of this utility model.

[0022] In the diagram: 1. Bracket; 2. Anti-misoperation mechanism; 201. Mounting plate; 202. Sleeve plate; 203. Drive rod; 204. Guide column; 205. Locking pin; 206. Guide plate; 207. Positioning rod one; 208. L-shaped plate; 209. Rotating shaft; 2010. Slide plate; 2011. Positioning rod two; 2012. Block; 2013. Spring; 2014. Pull rod; 2015. Handle; 2016. Side block; 2017. L-shaped round rod; 2018. Square frame; 3. Inlet plug operating hole; 4. Pin hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example 1, by Figure 1 The present invention relates to a drawer-type switch cabinet anti-misoperation device with mechanical interlock, comprising a bracket 1 and an inlet plug operation hole 3, wherein the inlet plug operation hole 3 is provided with a pin hole 4, and an anti-misoperation mechanism 2 is provided on the outside of the bracket 1.

[0025] Specifically, by Figure 2-5The anti-misoperation mechanism 2 includes a mounting plate 201 fixed to the outside of the bracket 1. Two guide posts 204 are symmetrically fixedly connected between the mounting plate 201 and the bracket 1. A guide plate 206 is movably sleeved between the two guide posts 204. A locking pin 205 is fixedly connected to the side of the guide plate 206 near the pin hole 4. The outer diameter of the locking pin 205 is equal to the inner diameter of the pin hole 4. A rotating shaft 209 is rotatably connected to the side of the mounting plate 201 away from the bracket 1. A sleeve plate 202 is fixedly sleeved on the outside of the rotating shaft 209. A drive rod 203 is rotatably connected to the side of the sleeve plate 202 away from the mounting plate 201. One end of the drive rod 203 away from the sleeve plate 202 is rotatably connected to the guide plate 206. An L-shaped round rod 2017 is fixedly connected to the side of the sleeve plate 202 away from the mounting plate 201. A sliding plate 2010 is movably sleeved on the outside of 17. A block 2012 is fixedly connected to the side of the sliding plate 2010 near the pivot 209. An L-shaped plate 208 is fixedly connected to the side of the mounting plate 201 away from the bracket 1. A frame 2018 is fixedly connected to the side of the L-shaped plate 208 near the sliding plate 2010. The block 2012 is inserted into the frame 2018. A side block 2016 is fixedly connected to the end of the L-shaped rod 2017 away from the sleeve plate 202. A pull rod 2014 is fixedly connected to the side of the sliding plate 2010 near the side block 2016. A handle 2015 is fixedly connected to the end of the pull rod 2014 away from the sliding plate 2010 through the side block 2016. A spring 2013 is fixedly connected between the side block 2016 and the sliding plate 2010. The spring 2013 is sleeved on the outside of the pull rod 2014.

[0026] First, pull the handle 2015, which drives the slide plate 2010 to slide along the L-shaped rod 2017 via the pull rod 2014. At this time, the spring 2013 is compressed, which moves the block 2012 to move out of the frame 2018. Then, rotate the sleeve plate 202, which drives the guide plate 206 to slide along the two guide posts 204 via the drive rod 203, and moves the locking pin 205 so that the locking pin 205 is inserted into or removed from the inlet plug operation hole 3. Then, release the handle 2015. At this time, the spring 2013 returns to its original position, which drives the slide plate 2010 to slide along the L-shaped rod 2017, and moves the block 2012 until it is inserted into the frame 2018. Lock the sleeve plate 202 to prevent it from rotating arbitrarily. Finally, fix the locking pin 205 to prevent it from loosening.

[0027] Specifically, by Figure 3 As shown, a positioning rod 1 207 and a positioning rod 2011 are fixedly connected to the side of the mounting plate 201 away from the bracket 1, and a sleeve plate 202 is located between the positioning rod 1 207 and the positioning rod 2011, and the sleeve plate 202 abuts against the positioning rod 1 207.

[0028] Positioning rod 2011 and positioning rod 207 are set on mounting plate 201 to position sleeve plate 202. When sleeve plate 202 abuts against positioning rod 207, locking pin 205 is removed from the inlet plug operation hole 3. When sleeve plate 202 abuts against positioning rod 2011, locking pin 205 is inserted into inlet plug operation hole 3, thereby controlling the movement distance of locking pin 205.

Claims

1. A drawer-type switchgear anti-misoperation device with mechanical interlock, comprising a bracket (1) and an inlet plug operation hole (3), wherein the inlet plug operation hole (3) is provided with a pin hole (4), characterized in that: The bracket (1) is provided with an anti-misoperation mechanism (2) on its outer side; The anti-misoperation mechanism (2) includes a mounting plate (201) fixed to the outside of the bracket (1). Two guide posts (204) are symmetrically fixed between the mounting plate (201) and the bracket (1). A guide plate (206) is movably sleeved between the two guide posts (204). A locking pin (205) is fixedly connected to the side of the guide plate (206) near the pin hole (4). The outer diameter of the locking pin (205) is equal to the inner diameter of the pin hole (4).

2. The anti-misoperation device for a drawer-type switchgear with mechanical interlock as described in claim 1, characterized in that: The mounting plate (201) is rotatably connected to a rotating shaft (209) on the side away from the bracket (1). A sleeve plate (202) is fixedly sleeved on the outside of the rotating shaft (209). A drive rod (203) is rotatably connected to the side of the sleeve plate (202) away from the mounting plate (201). The end of the drive rod (203) away from the sleeve plate (202) is rotatably connected to the guide plate (206).

3. The anti-misoperation device for a drawer-type switchgear with mechanical interlock as described in claim 2, characterized in that: An L-shaped rod (2017) is fixedly connected to the side of the sleeve plate (202) away from the mounting plate (201). A sliding plate (2010) is movably sleeved on the outside of the L-shaped rod (2017). A block (2012) is fixedly connected to the side of the sliding plate (2010) near the rotating shaft (209).

4. The anti-misoperation device for a drawer-type switchgear with mechanical interlock as described in claim 1, characterized in that: An L-shaped plate (208) is fixedly connected to the side of the mounting plate (201) away from the bracket (1), and a square frame (2018) is fixedly connected to the side of the L-shaped plate (208) close to the slide plate (2010). A block (2012) is inserted into the square frame (2018).

5. The anti-misoperation device for a drawer-type switchgear with mechanical interlock as described in claim 3, characterized in that: The L-shaped rod (2017) is fixedly connected to a side block (2016) at the end away from the sleeve plate (202). The slide plate (2010) is fixedly connected to a pull rod (2014) on the side near the side block (2016). The end of the pull rod (2014) away from the slide plate (2010) passes through the side block (2016) and is fixedly connected to a handle (2015). A spring (2013) is fixedly connected between the side block (2016) and the slide plate (2010). The spring (2013) is sleeved on the outside of the pull rod (2014).

6. The anti-misoperation device for a drawer-type switchgear with mechanical interlock as described in claim 1, characterized in that: The mounting plate (201) is fixedly connected to a positioning rod one (207) and a positioning rod two (2011) on the side away from the bracket (1). The sleeve plate (202) is located between the positioning rod one (207) and the positioning rod two (2011), and the sleeve plate (202) abuts against the positioning rod one (207).

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