CN218525963U - Locking mechanism for crank of direct-current switch cabinet - Google Patents

Abstract

The utility model discloses a direct current cubical switchboard crank blocked mechanical system, including shutting slide and cabinet door, shutting slide has seted up shutting slide jack, handcart crank jack has been seted up to the cabinet door, and the shutting slide passes through coupling assembling to be installed on the cabinet door, one side fixedly connected with sliding handle of shutting slide, opposite side fixedly connected with crank jack curb plate and locking hole curb plate, sliding handle's one end runs through the cabinet door, the inner circle movable sleeve of shutting slide is equipped with mechanical separating brake button, mechanical separating brake button runs through the cabinet door. The utility model ensures that the switching-off operation must be carried out firstly when the position of the circuit breaker handcart is changed, and the switching-on is locked in the operation process, thereby ensuring the personal safety and the equipment safety; meanwhile, the mechanical opening button on the equipment is used for locking, and unlocking is not needed by other tools and keys.

Description

Locking mechanism for crank of direct-current switch cabinet

Technical Field

The utility model relates to a direct current switch cabinet crank blocked mechanical system belongs to direct current switch cabinet technical field.

Background

The direct current switch cabinet is important power supply equipment in rail transit, and the running condition of equipment directly relates to the driving of rail transit vehicle, and direct current system current is great simultaneously, and the violation operation probably causes the bodily injury to operating personnel, so the possibility of maloperation will be reduced as far as possible.

When the direct current circuit breaker handcart was in the direct current cubical switchboard, generally had two states, station state and experimental station state, when the circuit breaker handcart removed experimental station from the station, can lead to circuit breaker separating brake, sound contact to separate, if the circuit breaker was the area load state this moment, will produce and draw the arc phenomenon, cause the harm to equipment, also probably cause the injury to the personnel. Consequently need a shutting to prevent that the circuit breaker from being changed the mechanism of circuit breaker handcart state by personnel's operation when closing a floodgate, some equipment manufacturers select to use the mode that increases the baffle on handcart crank jack and lock again at present to prevent the maloperation, such mode can prevent some operating personnel's maloperation, but all need take the key to open the baffle at every turn and just can operate, and is not convenient enough, just opens as long as there is the key moreover, can not link with the state of circuit breaker, still there is the risk.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem that prior art exists, overcome prior art's weak point, design a circuit breaker at the direct current switch cabinet crank blocked mechanical system that divides the position just can operate.

In order to realize the purpose, the technical scheme of the utility model is that:

the utility model provides a direct current cubical switchboard crank blocked mechanical system, includes shutting slide and cabinet door, shutting slide has seted up shutting slide jack, handcart crank jack has been seted up to the cabinet door, and the shutting slide passes through coupling assembling to be installed on the cabinet door, one side fixedly connected with slip handle of shutting slide, opposite side fixedly connected with crank jack curb plate and locking hole curb plate, the one end of slip handle runs through the cabinet door, the inner circle movable sleeve of shutting slide is equipped with mechanical separating brake button, mechanical separating brake button runs through the cabinet door.

Preferably, the locking slide plate is provided with a plurality of fixing holes and a locking hole, wherein the two fixing holes are respectively located at two sides of the locking slide plate insertion hole.

Preferably, coupling assembling includes bolt and self-locking nut, bolt and cabinet door welding, and bolt and fixed orifices sliding connection, self-locking nut and bolt threaded connection.

Preferably, the mechanical opening button comprises a mechanical opening screw, a button cap is sleeved at the top end of the mechanical opening screw, and the mechanical opening screw is matched with the locking hole.

Preferably, handle sliding holes and spacing holes have been seted up to the cabinet door, handle sliding holes is located the centre of handcart crank jack and spacing hole, sliding handle and handle sliding holes sliding connection, mechanical separating brake screw rod movable sleeve is established in the inner circle in spacing hole.

Preferably, the outer ring of the mechanical opening screw is fixedly sleeved with a limiting plate, and the limiting plate is matched with the limiting hole.

Preferably, the diameter of the handcart crank jack is smaller than that of the locking sliding plate jack.

The utility model discloses the beneficial effect who reaches:

1. the utility model ensures that the switching-off operation must be carried out firstly when the position of the circuit breaker handcart is changed, and the switching-on is locked in the operation process, thereby ensuring the personal safety and the equipment safety;

2. the utility model discloses convenient operation uses the mechanical separating brake button on the equipment to lock, need not come the unblock with the help of other apparatus, key.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the button cap and sliding handle of FIG. 1;

FIG. 3 is a schematic diagram of a pop-up structure of the mechanical tripping screw shown in FIG. 1;

FIG. 4 is a schematic view of a pressing structure of the mechanical opening screw shown in FIG. 1;

FIG. 5 is a schematic bottom view of the structure of FIG. 1;

FIG. 6 is a schematic view of an unlocking configuration of the lockout slide of FIG. 1;

fig. 7 is a schematic perspective view of the mechanical opening screw shown in fig. 1.

Reference numerals: 1. locking the slide plate; 2. a fixing hole; 3. locking the slide plate jack; 4. a locking hole; 5. a side plate of the crank jack; 6. a locking hole side plate; 7. a mechanical opening screw; 8. a button cap; 9. the connecting assembly 10 and a handcart crank jack; 11. a sliding handle; 12. a handle sliding hole; 13. a cabinet door; 14. a limiting hole; 15. and a limiting plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1

As shown in fig. 1 and 2, the utility model provides a direct current switch cabinet crank blocked mechanical system, including shutting slide 1 and cabinet door 13, shutting slide 1 has seted up shutting slide jack 3, handcart crank jack 10 has been seted up to cabinet door 13, and shutting slide 1 installs on cabinet door 13 through coupling assembling 9, one side fixedly connected with sliding handle 11 of shutting slide 1, opposite side fixedly connected with crank jack curb plate 5 and shutting hole curb plate 6, sliding handle 11's one end runs through cabinet door 13, the inner circle movable sleeve of shutting slide 1 is equipped with mechanical separating brake button, mechanical separating brake button runs through cabinet door 13, shutting slide 1 has seted up a plurality of fixed orificess 2 and a shutting hole 4, wherein two fixed orificess 2 are located the both sides of shutting slide jack 3 respectively.

In this embodiment, the diameter of handcart crank jack 10 is less than the diameter of shutting slide jack 3, and coupling assembling 9 includes bolt and self-locking nut, and the bolt welds with cabinet door 13, and bolt and 2 sliding connection of fixed orifices, and self-locking nut and bolt threaded connection, each bolt all are connected with two self-locking nuts simultaneously, and shutting slide 1 is located between two self-locking nuts.

Example 2

As shown in fig. 2-7, the utility model provides a dc switch cabinet crank blocked mechanical system, compare in embodiment 1, this embodiment still includes, machinery separating brake button includes machinery separating brake screw 7, machinery separating brake screw 7's top cover is equipped with button cap 8, and machinery separating brake screw 7 and locking hole 4 looks adaptation, handle sliding hole 12 and spacing hole 14 have been seted up to cabinet door 13, handle sliding hole 12 is located handcart crank jack 10 and spacing hole 14's centre, slip handle 11 and handle sliding hole 12 sliding connection, machinery separating brake screw 7 movable sleeve is established in the inner circle in spacing hole 14, machinery separating brake screw 7's outer lane fixed cover is equipped with limiting plate 15, limiting plate 15 and spacing hole 14 looks adaptation.

In this embodiment, mechanical separating brake screw 7 is the form that the both ends are thick and thin in the middle, and spacing hole 14 and limiting plate 15 all are the ellipse, and after limiting plate 15 and spacing hole 14 aligned, mechanical separating brake screw 7 just can remove in the inner circle of spacing hole 14, through limiting plate 15 and spacing hole 14's cooperation, makes mechanical separating brake screw 7 can not take place the displacement automatically, guarantees the stability of shutting slide 1.

When the mechanical opening button is installed, the mechanical opening screw 7 firstly passes through the large hole on the right side of the locking hole 4, then passes through the handle sliding hole 12 of the mechanical opening button hole on the cabinet door 13, and finally the button cap 8 is installed;

when the equipment normally works, the locking sliding plate 1 is in the position shown in the figure 5, at the moment, the locking sliding plate 1 blocks the handcart crank jack 10 on the cabinet door 13, the crank cannot be inserted, an operator cannot change the position state of a circuit breaker handcart, the mechanical opening button is in the position shown in the figure 3, and the locking sliding plate 1 cannot slide left and right when the mechanical opening screw 7 is in the large-aperture position of the locking hole 4; when the mechanical opening button is pressed, the mechanical opening screw 7 pushes a mechanical opening push rod on a circuit breaker handcart to open the circuit breaker, the mechanical opening button is positioned in a position shown in figure 4, the thinner part of the mechanical opening screw 7 is positioned in the locking hole 4, and the locking sliding plate 1 can move; the locking sliding plate 1 is moved to the position shown in the figure 6 by using the sliding handle 11, the door 10 of the cabinet 13 is overlapped with the locking sliding plate jack 3 on the locking sliding plate 1, and at the moment, the position state of the circuit breaker handcart can be changed by using the crank; meanwhile, the locking hole 4 can clamp the mechanical opening screw 7, so that the mechanical opening push rod on the circuit breaker handcart is prevented from rebounding, the circuit breaker cannot be switched on when the circuit breaker is operated by personnel, and the personal safety of the operator is ensured.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims (7)

1. The utility model provides a direct current switch cabinet crank blocked mechanical system, is including shutting slide (1) and cabinet door (13), shutting slide jack (3) have been seted up in shutting slide (1), handcart crank jack (10) have been seted up in cabinet door (13), and install on cabinet door (13) its characterized in that through coupling assembling (9) shutting slide (1): one side fixedly connected with slip handle (11) of shutting slide (1), opposite side fixedly connected with crank jack curb plate (5) and shutting hole curb plate (6), cabinet door (13) are run through to the one end of slip handle (11), the inner circle movable sleeve of shutting slide (1) is equipped with mechanical separating brake button, mechanical separating brake button runs through cabinet door (13).

2. The locking mechanism for the crank handle of the direct current switch cabinet according to claim 1 is characterized in that the locking slide plate (1) is provided with a plurality of fixing holes (2) and a locking hole (4), wherein two fixing holes (2) are respectively arranged at two sides of the locking slide plate insertion hole (3).

3. The handle locking mechanism of the direct current switch cabinet as claimed in claim 2, wherein the connecting assembly (9) comprises a bolt and a self-locking nut, the bolt is welded with the cabinet door (13) and is slidably connected with the fixing hole (2), and the self-locking nut is in threaded connection with the bolt.

4. The crank handle locking mechanism of the direct current switch cabinet according to claim 2, wherein the mechanical opening button comprises a mechanical opening screw (7), the top end of the mechanical opening screw (7) is sleeved with a button cap (8), and the mechanical opening screw (7) is matched with the locking hole (4).

5. The direct-current switch cabinet crank locking mechanism according to claim 4, wherein the cabinet door (13) is provided with a handle sliding hole (12) and a limiting hole (14), the handle sliding hole (12) is located between the handcart crank jack (10) and the limiting hole (14), the sliding handle (11) is connected with the handle sliding hole (12) in a sliding manner, and the mechanical opening screw (7) is movably sleeved in an inner ring of the limiting hole (14).

6. The crank handle locking mechanism of the direct current switch cabinet according to claim 5, wherein a limiting plate (15) is fixedly sleeved on an outer ring of the mechanical opening screw (7), and the limiting plate (15) is matched with the limiting hole (14).

7. A DC switch cabinet handle lock mechanism according to claim 1, characterized in that the diameter of the handcart handle jack (10) is smaller than the diameter of the locking slide plate jack (3).

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