Electrical panel cabinet pressing plate assembly with anti-misoperation function

Abstract

The utility model discloses an electrical panel cabinet pressing plate assembly with an anti-misoperation function, which comprises a back plate provided with a first contact connected with a circuit breaker opening and closing loop and a second contact connected with an action contact of a protection device; one side of the sliding block is provided with a contact connecting strip, and the sliding block can linearly slide along the back plate, so that the contact connecting strip is communicated with the first contact and the second contact; the first locking mechanism is arranged on the back plate and used for limiting the sliding block to slide towards the position where the contact connecting strip is communicated with the first contact and the second contact; the second locking mechanism is arranged on the back plate and used for limiting the sliding block to slide towards the position where the contact connecting strip disconnects the first contact and the second contact. According to the electrical panel cabinet pressing plate assembly with the anti-misoperation function, throwing and retreating can be conveniently achieved through the sliding plate structure, meanwhile, two locking mechanisms are matched, complete locking is achieved, and misoperation is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical cabinet pressure plate structures, in particular to an electrical panel cabinet pressure plate component with an anti-misoperation function. Background Art

[0002] The pressure plate is a switch structure installed on the operation panel of the relay protection cabinet. It disconnects or connects the secondary circuit by inserting and withdrawing the pressure plate. At present, there are two common pressure plates. One is the knife switch type pressure plate, which can be turned counterclockwise or clockwise to the knife switch to achieve the function of deactivating or adding the pressure plate (disconnecting or connecting the secondary circuit). The other is the plug-in type pressure plate, which can be pulled out or inserted into the pressure plate panel to achieve the function of deactivating or adding the pressure plate (disconnecting or connecting the secondary circuit).

[0003] The existing solutions have the following disadvantages:

[0004] 1) The pressure plate cannot be equipped with a mechanical locking device, and the risk of accidental release is high. The role of the pressure plate is similar to that of a circuit breaker or valve, and is a disconnectable connection point. Disconnecting the pressure plate is a secondary safety measure for the maintenance of electrical secondary equipment. The current pressure plate structure cannot be equipped with a mechanical locking device. If personnel accidentally release the pressure plate, it may cause malfunction of the running electrical equipment.

[0005] 2) The knife-type pressure plate has exposed live metal parts, which poses a high risk of electric shock. When the circuit breaker of the primary electrical equipment is in the closed position, the knife-type pressure plate carries a 110V voltage, and the knife-type pressure plate has exposed live metal parts, which poses a high risk of electric shock when operating the pressure plate.

[0006] 3) There is no electrical indication, and after the pressure plate is extended or retracted, the only way to judge whether it is extended or retracted properly is by its position. Utility Model Content

[0007] The utility model aims to provide an electrical panel cabinet pressure plate assembly with an anti-misoperation function, which can effectively limit the insertion and withdrawal operations of the pressure plate, avoid misoperation, and improve the safety of the electrical panel cabinet.

[0008] The utility model is realized by the following technical solutions:

[0009] An electrical panel cabinet pressure plate assembly with an anti-misoperation function, comprising:

[0010] A back plate, the back plate being provided with a first contact connected to the circuit breaker opening and closing circuit and a second contact connected to the action contact of the protection device;

[0011] A slider, a contact connection strip is provided on one side of the slider, and the slider can slide linearly along the back plate so that the contact connection strip connects the first contact and the second contact;

[0012] A first locking mechanism, arranged on the back plate, for limiting the sliding block from sliding toward a position where the contact connecting strip connects the first contact and the second contact;

[0013] The second locking mechanism is arranged on the back plate and is used to limit the sliding block from sliding to a position where the contact connecting strip disconnects the first contact and the second contact.

[0014] Optionally, a third contact connected to the indication circuit is further provided on the back plate, the third contact is arranged side by side with the second contact, and the contact connection strip of the slider can connect or disconnect the second contact and the third contact at the same time.

[0015] Optionally, T-shaped grooves are provided on both sides of the back plate, and T-shaped slide rails are provided on both sides of the slider, and the T-shaped slide rails are embedded in the T-shaped grooves, so that the slider can slide straightly along the back plate.

[0016] Optionally, the first locking mechanism includes a locking hole arranged on one side of the back plate and a lock for limiting the sliding block from sliding toward a position where the contact connecting strip connects the first contact and the second contact after being inserted into the locking hole.

[0017] Optionally, the second locking mechanism includes a stepped hole, a stepped pin and an elastic component. The stepped hole is a structure in which the hole diameter is smaller than the inner diameter of the hole. The stepped pin is arranged in the stepped hole and is maintained in the hole by the stepped hole. The elastic component is arranged in the stepped hole and can keep the stepped pin in a state of extending out of the stepped hole.

[0018] Optionally, the indication circuit includes an indicator light, and the indicator light is arranged on the slider.

[0019] Optionally, the back plate is provided with connecting bolts respectively connected to the contacts, and the connecting bolts are used to connect to the secondary circuit wires.

[0020] The technical solution of the utility model has at least the following beneficial effects:

[0021] The electrical panel cabinet pressure plate assembly with anti-misoperation function of the utility model completes the insertion and withdrawal functions by adopting a pressure plate assembly formed by a back plate and a slider with a sliding structure, and at the same time realizes limiting at the insertion and withdrawal position through a first locking mechanism and a second locking mechanism, so that the insertion and withdrawal operation can only be completed after the limit is released, effectively avoiding the operator's misoperation, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front exploded schematic diagram of the electrical panel cabinet pressure plate assembly of the utility model;

[0023] Figure 2 This is a rear exploded schematic diagram of the electrical panel cabinet pressure plate assembly of the utility model;

[0024] Figure 3 This is a top exploded schematic diagram of the electrical panel cabinet pressure plate assembly of the utility model;

[0025] Figure 4 This is a diagram of the electrical panel cabinet pressure plate assembly being put into operation in the utility model;

[0026] Figure 5 This is a diagram of the electrical panel cabinet pressure plate assembly exiting state of the utility model;

[0027] Figure 6 It is a circuit schematic diagram of the electrical panel cabinet pressure plate assembly of the utility model in the put-in state;

[0028] Figure 7 It is a circuit schematic diagram of the electrical panel cabinet pressure plate assembly of the utility model in the exit state;

[0029] Icons: 10-back plate, 20-slider, 31-second contact, 32-third contact, 33-first contact, 34-contact connection strip, 41-lock hole, 51-step pin, 52-elastic component, 60-indicator light, DETAILED DESCRIPTION

[0030] Example 1

[0031] Reference Figure 1-7 The utility model discloses an electrical panel cabinet pressure plate assembly with an anti-misoperation function, comprising a back plate 10 and a slider 20, wherein the back plate 10 is provided with a first contact 33 connected to a circuit breaker opening and closing circuit and a second contact 31 connected to an action contact of a protection device, the first contact 33 and the second contact 31 are both supported by conductive copper springs, and the back plate 10 is provided with connecting bolts corresponding to each contact, and the connecting bolts are connected to different functional circuits, for example, the first contact 33 is connected to the opening and closing circuit of the circuit breaker through the connecting bolts on its back, and the second contact 31 is connected to the action contact of the protection device through the connecting bolts on the back of the back plate 10. A contact connection strip 34 is provided on one side of the slider 20. The contact connection strip 34 adopts a long copper strip structure. The slider 20 can slide in a straight line along the back plate 10 so that the contact connection strip 34 connects the first contact 33 and the second contact 31. The first contact 33 and the second contact 31 are a certain distance apart on the moving path of the contact connection strip 34. When the slider 20 slides until the contact connection strip 34 contacts the first contact 33 and the second contact 31 at the same time, the connection between the pressure plate and the secondary circuit is realized; and when the slider 20 moves in the opposite direction so that the contact connection strip 34 leaves one of the contacts, the connection is disconnected. In this embodiment, the relative sliding mode of the back plate 10 and the slide plate is: T-shaped grooves are provided on both sides of the back plate 10, and T-shaped slide rails are provided on both sides of the slider 20. The T-shaped slide rails are embedded in the T-shaped grooves, so that the slider 20 can slide in a straight line along the back plate 10.

[0032] Reference Figure 6 and Figure 7 The first contact 33 corresponds to K3 in the figure, the second contact 31 corresponds to K2 in the figure, and the third contact 32 corresponds to K1 in the figure.

[0033] In order to realize the function of preventing misoperation, on the basis of the above-mentioned basic principle of insertion and withdrawal, a first locking mechanism and a second locking mechanism are further provided between the back plate 10 and the slider 20. The first locking mechanism is arranged on the back plate 10, and is used to limit the slider 20 from sliding to the position where the contact connection strip 34 connects the first contact 33 and the second contact 31; the second locking mechanism is arranged on the back plate 10, and is used to limit the slider 20 from sliding to the position where the contact connection strip 34 disconnects the first contact 33 and the second contact 31. When the slider 20 moves to the contact connection strip 34 and contacts the first contact 33 and the second contact 31 at the same time, the second locking mechanism limits the slider 20 from moving in the direction of withdrawal, and the locked state can be maintained; and when the slider 20 moves to the contact connection strip 34 and does not contact the first contact 33 and the second contact 31 at the same time, it is necessary to prevent the contact connection strip 34 from contacting the two contacts at the same time, and the first locking cabinet is used to limit or limit the slider 20 so that it cannot move to the contact connection strip 34 to contact the two contacts at the same time.

[0034] Specifically, the first locking mechanism includes a lock hole 41 arranged on one side of the back plate 10 and a lock (not shown) inserted into the lock hole 41 to limit the sliding of the slider 20 to the position where the contact connecting strip 34 connects the first contact 33 and the second contact 31. The lock hole 41 adopts a common blind hole structure, and the lock can adopt a common latch. After the lock is inserted into the lock hole 41, the exposed part of the lock can limit the slider 20 from moving in a way of contacting the contacts at the same time. The lock hole 41 and the lock can be located below the first contact 33, so that after locking, the slider 20 cannot slide upward. Only when it contacts the lock can it continue to slide.

[0035] The second locking mechanism includes a stepped hole, a stepped pin 51 and an elastic component 52. The stepped hole is a structure in which the diameter of the hole is smaller than the inner diameter of the hole. The stepped pin 51 is arranged in the stepped hole and is kept in the hole by the stepped hole. The elastic component 52 is arranged in the stepped hole and can keep the stepped pin 51 in a state of extending out of the stepped hole. The first locking mechanism can also adopt the same structural form as the second locking mechanism. The elastic component 52 adopts a coil spring. The second locking mechanism has the stepped pin 51 extended in the natural state. When the slider 20 slides to the contact point connecting strip 34 and contacts the two contacts at the same time, the stepped pin 51 extends to prevent the slider 20 from moving and maintain this contact state. Only when the stepped pin 51 is manually pressed to retract it into the stepped hole can the slider 20 be withdrawn and the contact state is released.

[0036] Example 2

[0037] On the basis of the first embodiment, the present embodiment is further provided with a third contact 32 connected to the indicating circuit. The third contact 32 is arranged side by side with the second contact 31. The contact connecting strip 34 of the slider 20 can simultaneously connect or disconnect the second contact 31 and the third contact 32. The first contact 33 carries a 110V DC power. When the slider 20 slides to the contact connecting strip 34 and contacts the three contacts at the same time, the indicating circuit connected to the third contact 32 is energized. The indicating circuit includes an indicator light 60. The indicator light 60 is arranged on the slider 20. The indicator light 60 is on, indicating that the pressing plate is now in the state of being put into operation. Therefore, the third contact 32 and the second contact 31 are generally arranged side by side in a close manner, such as side by side longitudinally or side by side horizontally.

Claims

1. An electrical panel cabinet pressure plate assembly with anti-misoperation function, characterized in that: include: A back plate, the back plate being provided with a first contact connected to the circuit breaker opening and closing circuit and a second contact connected to the action contact of the protection device; A slider, a contact connection strip is provided on one side of the slider, and the slider can slide linearly along the back plate so that the contact connection strip connects the first contact and the second contact; A first locking mechanism, arranged on the back plate, for limiting the sliding block from sliding toward a position where the contact connecting strip connects the first contact and the second contact; The second locking mechanism is arranged on the back plate and is used to limit the sliding block from sliding to a position where the contact connecting strip disconnects the first contact and the second contact.

2. The electrical cabinet pressure plate assembly with anti-misoperation function according to claim 1 is characterized in that: The back plate is also provided with a third contact connected to the indicating circuit, the third contact is arranged side by side with the second contact, and the contact connection strip of the slider can connect or disconnect the second contact and the third contact at the same time.

3. The electrical panel cabinet pressure plate assembly with anti-misoperation function according to claim 1 or 2, characterized in that: T-shaped grooves are arranged on both sides of the back plate, and T-shaped slide rails are arranged on both sides of the slider. The T-shaped slide rails are embedded in the T-shaped grooves, so that the slider can slide straightly along the back plate.

4. The electrical panel cabinet pressure plate assembly with anti-misoperation function according to claim 1 or 2, characterized in that: The first locking mechanism comprises a locking hole arranged at one side of the back plate and a lock which is inserted into the locking hole and is used to limit the sliding block from sliding toward a position where the contact connecting strip connects the first contact and the second contact.

5. The electrical panel cabinet pressure plate assembly with anti-misoperation function according to claim 1 or 2, characterized in that: The second locking mechanism includes a stepped hole, a stepped pin and an elastic component. The stepped hole is a structure in which the diameter of the hole opening is smaller than the inner diameter of the hole. The stepped pin is arranged in the stepped hole and is maintained in the hole by the stepped hole. The elastic component is arranged in the stepped hole and can keep the stepped pin in a state of extending out of the stepped hole.

6. The electrical panel cabinet pressure plate assembly with anti-misoperation function according to claim 2, characterized in that: The indicating circuit comprises an indicator light, and the indicator light is arranged on the sliding block.

7. The electrical cabinet pressure plate assembly with anti-misoperation function according to claim 1, characterized in that: The back plate is provided with connecting bolts respectively connected to the contacts, and the connecting bolts are used to connect to the secondary circuit wires.

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