CN204270931U - A handle lock of a circuit breaker - Google Patents

Abstract

The utility model discloses a kind of handle lock of circuit breaker, comprise fixed support and be arranged on the clamp on fixed support by rotating shaft mechanism, at described fixed support, one end of described rotating shaft mechanism is provided with padlock portion, this padlock portion offers at least one through hole for padlock; Described clamp be provided with the slot that inserts for described padlock portion and be positioned at the sticking department of described slot away from described rotating shaft mechanism side, described sticking department offers lock hole.The utility model only comprises fixed support and clamp two parts, simple and stable structure, and parts are few; Fixed support is not offered larger hole slot structure, therefore its structural strength is higher; Clamp has only been offered a slot and a lock hole, manufacturing procedure is simple, and slot is positioned at inside lock hole, and make overall structure comparatively compact, small volume, mounting structure can not take too many space.

Description

A handle lock of a circuit breaker

technical field

The utility model relates to a handle lock of a circuit breaker, belonging to the technical field of circuit breakers.

Background technique

Circuit breakers are used in power distribution lines and are closed and opened by the operation of the handle. During the use of the circuit breaker, in order to prevent the circuit breaker from being accidentally misoperated, affecting the power on and off, or affecting the life safety of maintenance personnel during circuit maintenance, and bringing unforeseen consequences, the position of the circuit breaker handle Relatively fixed in the opening or closing position, so that it is particularly important not to be misoperated. Therefore, when the line is in use or needs maintenance and repair, the handle lock device can be used as an external accessory to be installed on the circuit breaker to fix the handle and prevent losses caused by misoperation of the circuit breaker by others.

Some of the current handle locks need to process additional installation holes or installation grooves on the circuit breaker, but because the design volume of the circuit breaker is getting smaller and smaller, the shape and structure tend to be simplified. It becomes very difficult. Some handle locks rely on the combination of multiple parts to achieve locking in different states, and the matching parts must be removed after unlocking, which may be lost when used again, which not only increases the cost, but also has a cumbersome structure. There are also other handle locks, which have complex structures, cumbersome production and processing steps, more materials, low structural strength, and the disadvantages of inconvenient installation.

Utility model content

Therefore, the technical problem to be solved by the utility model is to overcome the defects in the prior art and provide a handle lock of a circuit breaker with simple structure, few parts, small volume and high structural strength.

In order to achieve the above purpose, a handle lock of a circuit breaker of the present utility model includes a fixed bracket and a clamp mounted on the fixed bracket through a rotating shaft mechanism, and a padlock part is provided at the end of the fixed bracket far away from the rotating shaft mechanism. The padlock part is provided with at least one through hole for the padlock; the card plate is provided with a slot for the padlock part to be inserted and a locking part located on the side of the slot away from the rotating shaft mechanism. A locking hole is opened on the locking part.

The rotating shaft mechanism includes two supporting parts that are bent vertically upward on both sides of the fixed bracket. A shaft hole is opened on the top of each supporting part. The holes correspond to the two mating projections, and the projections are inserted into the shaft holes so that the two supporting parts support the clamping plate.

The base part of the fixing bracket is arranged horizontally, the padlock part is bent upward, and a connecting part is arranged between the base part of the fixing bracket and the padlock part.

The lower part of the padlock part is provided with a shoulder structure, and the shoulder structure is used to withstand the clamping plate after the upper part of the padlock part is inserted into the slot.

The base part is provided with a screw through hole.

By adopting the above technical solution, the handle lock of the circuit breaker of the utility model has the following beneficial effects compared with the prior art:

1. The utility model only includes two parts of the fixed bracket and the clamping plate, the structure is simple and stable, and there are few components; there is no larger hole structure on the fixing bracket, so its structural strength is relatively high; only one plug is set on the clamping plate Slot and a locking hole, the processing procedure is simple, the slot is located inside the locking hole, so that the overall structure is relatively compact, the volume is small, and the installation structure will not take up too much space; the locking hole of the clamp locks a station of the handle, At the same time, the edge of the locking part at the front of the clamp can also block and lock another station of the handle, so that the clamp can be shorter, use less material, and realize a more compact overall structure of the handle lock.

2. The base part of the support plate in the utility model is set horizontally, and the base part is provided with a screw through hole, which can be installed on the existing circuit breaker through screws, and the parts can be retained on the circuit breaker after unlocking, which is convenient for reuse .

3. The padlock part can have two padlock holes, which can be selected and used according to the needs, which is more flexible.

Description of drawings

Fig. 1 is a structural schematic diagram of a circuit breaker handle lock of the present invention.

Fig. 2 is a structural schematic diagram of the locked state of the circuit breaker handle lock of the utility model when the circuit breaker is opened.

Fig. 3 is a structural schematic diagram of the locked state of the circuit breaker handle lock of the utility model when the circuit breaker is closed.

Fig. 4 is a structural schematic diagram of the handle lock of the circuit breaker in the unlocked state of the circuit breaker of the present invention.

Fig. 5 is a schematic diagram of the structure of the fixed bracket in the present invention.

Fig. 6 is a schematic diagram of the structure of the pallet in the utility model.

The reference signs in the figure represent:

1-fixed bracket; 2-clamp; 3-padlock; 4-handle; 5-screw; 101-support part; 102-shaft hole; 103-padlock part; 104-through hole; 107-screw through hole; 108-connecting part; 201-locking part; 202-projection; 203-slot; 204-locking hole.

Detailed ways

The utility model is described in further detail below by means of drawings and specific embodiments.

This embodiment provides a handle lock of a circuit breaker, as shown in Figures 2, 3 and 4, the handle lock is installed on the circuit breaker 10, and can lock the handle of the circuit breaker in the closing position or the opening position, making it not mishandled.

As shown in FIG. 1 , the handle lock of the circuit breaker includes a fixed bracket 1 and a clamping plate 2 mounted on the fixing bracket 1 through a rotating shaft mechanism, and the clamping plate 2 can rotate relative to the fixing bracket 1 through the rotating shaft mechanism.

The shaft mechanism includes two support parts 101 bent vertically upwards on both sides of the fixed bracket 1 , a shaft hole 102 is opened on the top of each support part 101 , and a shaft hole 102 is provided on both sides of the clamping plate 2 . The two shaft holes 102 correspond to the two protrusions 202 , and the protrusions 202 are inserted into the shaft holes 102 so that the two supporting parts 101 support the clamping plate 2 .

The two protrusions 202 are correspondingly stuck in the two shaft holes 102 respectively, and the line connecting the two protrusions 202 is the axis of rotation of the clamping plate 2. When the clamping plate 2 is pulled, the clamping plate 2 It can rotate around the axis formed by the two protrusions 202 , see FIG. 6 .

One end of the fixed bracket 1 away from the shaft mechanism is provided with a padlock portion 103, and the padlock portion 103 is provided with at least one through hole 104 for hanging the padlock 3, and there are two through holes 104 in this embodiment. , see Figure 5.

The clamping plate 2 is provided with a slot 203 for inserting the padlock 103 and a locking portion 201 located on the side of the slot 203 away from the shaft mechanism, and a locking hole 204 is opened on the locking portion 201 .

The lower part of the padlock part 103 is provided with a shoulder structure 105 , and the shoulder structure 105 is used to withstand the clamping plate 2 after the upper part of the padlock part 103 is inserted into the slot 204 .

When in use, as shown in Figure 4, first open the clamp 2, then move the handle 4 to the opening or closing position as required, then rotate the clamp 2, and insert the padlock 103 into the clamping slot 203 Inside, then lock the padlock 3 through the through hole 104. At this time, the handle 4 is either in the locking hole 204 as shown in FIG. 2 , or is blocked by the locking portion 201 as shown in FIG. 3 .

The base part 106 of the fixing bracket 1 is arranged horizontally, and has a screw through hole 107 , and the fixing bracket 1 can be fixed on the circuit breaker 10 through the screws 5 . The padlock part 103 is bent upwards, and a connecting part 108 is provided between the base part 106 of the fixing bracket 1 and the padlock part 103 .

Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, on the basis of the above description, other changes or changes in different forms can also be made. It is not necessary and impossible to exhaustively list all the implementation manners here. And the obvious changes or variations derived therefrom are still within the scope of protection of the utility model.

Claims (5)

1. A handle lock of a circuit breaker, characterized in that: it includes a fixed bracket (1) and a clamp (2) mounted on the fixed bracket through a rotating shaft mechanism, when the fixed bracket (1) is away from the rotating shaft mechanism A padlock part (103) is provided at one end, and at least one through hole (104) for a padlock is opened on the padlock part (103); an insertion hole for inserting the padlock part (103) is provided on the clamping plate (2). A slot (203) and a locking portion (201) located on the side of the slot (203) away from the rotating shaft mechanism, and a locking hole (204) is opened on the locking portion (201). 2. The handle lock of a circuit breaker according to claim 1, characterized in that: the rotating shaft mechanism includes two support parts (101) bent vertically upward on both sides of the fixing bracket (1), each of which A shaft hole (102) is opened on the top of the support part (101), and two protrusions (202) corresponding to the two shaft holes (102) are provided on both sides of the clamping plate (2), The protrusion (202) is inserted into the shaft hole (102) so that the two support parts (101) support the clamping plate (2). 3. The handle lock of a circuit breaker according to claim 1 or 2, characterized in that: the base part (106) of the fixing bracket (1) is arranged horizontally, the padlock part (103) is bent upwards, and A connecting portion (108) is provided between the base portion of the fixing bracket (1) and the padlock portion (103). 4. The handle lock of circuit breaker according to claim 1 or 2, characterized in that: the lower part of the padlock part (103) is provided with a shoulder structure (105), and the shoulder structure (105) structure is used for After the upper part of the padlock part (103) is inserted into the slot (203), it withstands the clamping plate (2). 5. The handle lock of a circuit breaker according to claim 3, characterized in that: the base part (106) is provided with a screw through hole (107).