A precision control circuit breaker lock

Abstract

The application relates to the electrical technical field and relates to a precision circuit breaker lock, which comprises a circuit breaker lock body, the circuit breaker lock body comprises two lock halves, namely a left lock half on the left side and a right lock half on the right side, the fitting plate comprises two fitting plate halves, the side panel comprises a shell, the shell further comprises a positioning sheet, the positioning sheet is a length direction positioning sheet of a circuit breaker operating rod, the positioning sheet is provided with a positioning sheet mounting hole and a length direction positioning groove, the positioning sheet is mounted in the shell through the positioning sheet mounting hole by means of a hinge shaft, and the positioning sheets on the two lock halves are symmetrically arranged with the hinge shaft. The precision circuit breaker lock has the advantages that the position of the circuit breaker operating rod can be strictly controlled, and the precision circuit breaker lock is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of electrical technology, to locks, and more specifically to circuit breaker locks. Background Technology

[0002] A circuit breaker is a device that can close and open a circuit. A circuit breaker generally includes a housing, internal accessories, and a rotary operating handle. The operator moves the handle up and down to open and close the circuit breaker. During equipment maintenance, the circuit breaker must be kept in a certain operating state to ensure the safety of personnel. If the circuit breaker is misoperated due to a lack of warnings or lacks mechanisms to restrict the operation of the handle, it could potentially cause equipment damage, property damage, or even personal injury, posing a significant safety hazard. Therefore, circuit breaker locks have been developed.

[0003] The circuit breaker lock includes a lock body with a mounting plate underneath. The mounting plate has a running channel for the circuit breaker handle, and side panels on both sides of the running channel have lock holes. In use, the lock is placed on top of the circuit breaker, with the handle passing through the running channel. A padlock passes through the lock hole to limit the handle's movement, preventing unauthorized personnel from operating the handle and achieving a protective effect. The lock can be removed when the circuit breaker is not being controlled.

[0004] In the prior art, such circuit breaker locks do not have a positioning component that precisely positions the handle along the length of the circuit breaker. Since the handle determines the working state of the circuit breaker, when locking the circuit breaker with this lock, the circuit breaker handle will be slightly moved, which has the disadvantages of not being able to strictly control the position of the circuit breaker operating lever and being inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a precision circuit breaker lock that allows for strict control of the circuit breaker operating lever position and is easy to use.

[0006] The technical solution of this invention is as follows: a precision-controlled circuit breaker lock includes a circuit breaker lock body, a bonding plate on the underside of the circuit breaker lock body, a running channel for the circuit breaker handle on the bonding plate, and side panels on both sides of the running channel. A locking mechanism is located on each side panel. The circuit breaker lock body comprises two lock components: a left lock component on the left and a right lock component on the right. The bonding plate comprises two bonding plate components: a left bonding plate mounted on the left lock component and a right bonding plate mounted on the right lock component. The side panels include a housing, and within the housing are positioning pieces. These positioning pieces are positioning pieces along the length of the circuit breaker operating lever. Each positioning piece has a positioning piece mounting hole and a positioning groove along its length. The cross-section of the positioning groove is a groove that matches the side structure of the operating lever. The positioning pieces are mounted inside the housing via the positioning piece mounting hole using a hinge. The positioning pieces and hinges on the two lock components are symmetrically arranged. Furthermore, the housing contains a nut with spaced protrusions, the hinge is a bolt installed in the nut, the mounting hole of the positioning plate has multiple grooves that mate with the protrusions at the contact points with the nut, and there is a spring around the bolt that abuts against the positioning plate.

[0007] Furthermore, each lock assembly has multiple sets of positioning plates and hinge pins, and the grooves on these multiple positioning plates have different cross-sections.

[0008] Furthermore, there is an adjusting screw installed on the bonding plate. The adjusting screw is a component that controls the height of the circuit breaker locking body on the circuit breaker body.

[0009] Furthermore, suction cups are installed under the bonding plate.

[0010] Furthermore, the suction cup on one of the lock components is connected to a vent pipe, the other end of which is inside the housing and equipped with a valve.

[0011] The beneficial effects of this invention are: such a circuit breaker lock has the advantages of being able to strictly control the position of the circuit breaker operating lever and being easy to use. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention.

[0013] Figure 2 This is a front structural diagram of the present invention.

[0014] Figure 3 yes Figure 2 A schematic diagram of the A-A direction structure.

[0015] Figure 4 yes Figure 3 A schematic diagram of the B-B direction structure in the diagram.

[0016] Figure 5 yes Figure 4 A schematic diagram of the C-C direction structure.

[0017] The components include: 1. Adhesive plate 11. Running channel 12. Left adhesive plate 13. Right adhesive plate 2. Side panel 21. Outer shell 3. Locking mechanism 41. Left lock body 42. Right lock body 5. Positioning plate 51. Positioning plate mounting hole 511. Groove 52. Positioning slot 6. Hinge 7. Nut 71. Protrusion 8. Spring 9. Top screw 10. Suction cup 101. Air release pipe 102. Valve 103. Warning light 103. 104. Battery 105. Switch. Detailed Implementation

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] like Figure 1 , 2 As shown in Figure 3, a precision-controlled circuit breaker lock includes a circuit breaker lock body. The circuit breaker lock body has a bonding plate 1 on its underside, and the bonding plate has a running channel 11 for the circuit breaker handle. Side panels 2 are located on both sides of the running channel, and a locking mechanism 3 is located on the side panels. The lock body comprises two locking components: a left locking component 41 on the left and a right locking component 42 on the right. The bonding plate comprises two bonding plate components, namely... A left bonding plate 12 is installed on the left lock assembly, and a right bonding plate 13 is installed on the right lock assembly. The side panel includes a housing 21, and a positioning piece 5 is also provided inside the housing. The positioning piece is a positioning piece along the length of the circuit breaker operating lever. The positioning piece has a positioning piece mounting hole 51 and a positioning groove 52 along the length. The cross-section of the positioning groove is a groove that matches the side structure of the operating lever. The positioning piece is installed inside the housing through the positioning piece mounting hole by a hinge 6. The positioning pieces and hinges on the two lock assemblies are symmetrically arranged.

[0020] The design principle is based on the fact that the direction of the circuit breaker operating lever determines the working state of the circuit breaker. For example, by moving the operating lever, the angle between the operating lever and the circuit breaker body changes, thus changing the working state of the circuit breaker between the open and closed states. In this invention, the direction of the positioning groove is adjusted to suit the direction of the operating lever in the working state. The two locking devices are then separately fastened to the side of the circuit breaker operating lever, and the two positioning grooves lock the operating lever. The locking mechanism fixes the two locking devices separately relative to each other, achieving the positioning of the operating lever, preventing accidental operation by other personnel, and ensuring precise control, thus achieving the purpose of this invention.

[0021] The lock mechanism can be, for example, a keyhole for installing a padlock, or any other lock mechanism, as long as it can combine two separate lock parts together. There are many types of lock mechanisms in the prior art, and for example, electromagnetic locks can also be used.

[0022] The positioning plates and hinge shafts on the two separate locking devices are symmetrically arranged to ensure that the circuit breaker operating lever is gripped tightly on both sides.

[0023] The positioning piece is mounted inside the housing via a hinge pin 6 through a positioning piece mounting hole, ensuring that the direction of the positioning groove can be adjusted. Figure 3 In the diagram, the direction of arrow F is the direction of adjustment for the positioning piece, and the direction of D is the direction of the length of the positioning groove.

[0024] To elaborate further, such as Figure 3 , 4 As shown in Figure 5, the housing contains a nut 7, the nut has spaced protrusions 71, the hinge is a bolt installed in the nut, the mounting hole of the positioning piece and the part in contact with the nut have multiple grooves 511 that cooperate with the protrusions, and there is a spring 8 around the bolt that abuts against the positioning piece.

[0025] This invention allows for adjustment of the height of the circuit breaker lock mounted on the circuit breaker, enabling real-time adjustment on different models of circuit breakers, making it more convenient to use.

[0026] Furthermore, each lock assembly has multiple sets of positioning plates and hinge pins, and the grooves on these multiple positioning plates have different cross-sections.

[0027] This invention is designed to be more convenient to use depending on the different cross-sections of the operating levers of different circuit breakers. The cross-sections of the grooves come in multiple models; for example, some grooves have a larger curvature, some have a smaller curvature, some have a circular arc cross-section, and some have a square cross-section. These shapes are designed to match the side structure of different circuit breaker handles.

[0028] To elaborate further, such as Figure 3 As shown, there is also an adjusting screw 9 installed on the bonding plate. The adjusting screw is a component that controls the height of the circuit breaker locking body on the circuit breaker body.

[0029] To elaborate further, such as Figure 3 As shown, a suction cup 10 is also installed under the bonding plate.

[0030] This invention is designed so that, during use, the suction cup can be fixed to the surface of the circuit breaker, and the circuit breaker locking device can be firmly fixed to the surface of the circuit breaker. The suction cup can be, for example, a hemispherical rubber cup. By displacing the air inside the rubber cup, a negative pressure can be created inside the rubber cup, making the rubber cup firmly fixed, thus ensuring that the circuit breaker locking device is firmly fixed to the surface of the circuit breaker.

[0031] To elaborate further, such as Figure 3 As shown, the suction cup on one of the lock parts is also connected to a vent pipe 101, and the other end of the vent pipe is inside the housing and is equipped with a valve 102.

[0032] This invention is designed so that the valve is opened only after the circuit breaker lock is opened, i.e., after the other lock is removed, air enters the suction cup, the suction cup loses its suction force, the lock is removed, and the circuit breaker operating lever is activated.

[0033] To elaborate further, such as Figure 3 As shown, a warning light 103 is also installed on the housing, and a battery 104 is also installed inside the housing. The battery is connected to the warning light via a switch 105, which is installed inside the housing.

[0034] The warning light serves a warning function, and the switch is installed inside the housing, meaning that the warning light cannot be operated without opening the housing, thus providing a strict control effect.

[0035] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A precision-controlled circuit breaker lock, comprising a circuit breaker lock body, wherein the circuit breaker lock body has a bonding plate on its underside, the bonding plate has a running channel for a circuit breaker handle, and side panels are located on both sides of the running channel, wherein the side panels are located on both sides of the running channel, and a locking mechanism is located on the side panels; characterized in that: The circuit breaker lock body includes two lock parts: a left lock part on the left and a right lock part on the right. The bonding plate includes two bonding plate parts: a left bonding plate installed on the left lock part and a right bonding plate installed on the right lock part. The side panel includes a housing, and inside the housing are positioning pieces. The positioning pieces are positioning pieces along the length of the circuit breaker operating lever. The positioning pieces have positioning piece mounting holes and positioning grooves along the length. The cross-section of the positioning groove is a groove that matches the side structure of the operating lever. The positioning pieces are installed inside the housing by hinges through the positioning piece mounting holes. The positioning pieces and hinges on the two lock parts are symmetrically arranged.

2. The precision control circuit breaker lock according to claim 1, characterized in that: The housing contains a nut with spaced protrusions. The hinge is a bolt installed in the nut. The mounting hole of the positioning piece has multiple grooves that mate with the protrusions at the contact points with the nut. There is also a spring around the bolt that abuts against the positioning piece.

3. The precision control circuit breaker lock according to claim 2, characterized in that: Each lock assembly has multiple sets of positioning plates and hinge pins, and the grooves on the multiple sets of positioning plates have different cross-sections.

4. The precision control circuit breaker lock according to claim 3, characterized in that: There is also an adjusting set screw installed on the bonding plate. The adjusting set screw is a component that controls the height of the circuit breaker locking body on the circuit breaker body.

5. The precision control circuit breaker lock according to claim 4, characterized in that: There are also suction cups installed under the bonding plate.

6. The precision control circuit breaker lock according to claim 5, characterized in that: One of them The suction cup on the lock body is also connected to a vent pipe, the other end of which is inside the housing and equipped with a valve.

7. The precision control circuit breaker interlocking device according to claim 1, characterized in that: The housing is also equipped with a warning light, and a battery is installed inside the housing. The battery is connected to the warning light via a switch, which is installed inside the housing.

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