CN215815762U - Small circuit breaker with anti-touch structure - Google Patents

Abstract

The utility model provides a miniature circuit breaker with a touch-proof structure, which comprises a circuit breaker body and a push rod, wherein the push rod is positioned on one side of the surface of the circuit breaker body and used for controlling a circuit switch; when the push rod is pulled downwards to disconnect the circuit, the push rod drives the fixed part to move downwards and be clamped into the positioning assembly, and the positioning assembly fixes the position of the push rod; according to the utility model, through arranging the positioning assembly and the fixed part which are connected in a clamping manner, when the circuit needs to be closed for maintenance work, the push rod is pushed downwards to close the circuit, and meanwhile, the fixed part is clamped in the positioning assembly to fix the position of the push rod pulled downwards, so that the push rod is prevented from moving upwards under the action of external force, and the circuit is prevented from being opened; the safety performance of the equipment is effectively improved.

Description

Small circuit breaker with anti-touch structure

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a miniature circuit breaker with an anti-touch structure.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances.

When the circuit needs to be maintained, the circuit is firstly disconnected through the driving push rod, and maintenance personnel can perform maintenance work, if the maintenance work is performed by the working personnel, the push rod is mistakenly touched by external force, so that the circuit is opened, and certain danger can be caused to the maintenance personnel.

SUMMERY OF THE UTILITY MODEL

The utility model provides a small circuit breaker with a touch-proof structure aiming at the defects of the prior art.

The utility model solves the technical problems through the following technical means:

the miniature circuit breaker with the anti-touch structure comprises a circuit breaker body and a push rod which is positioned on one side of the surface of the circuit breaker body and used for controlling a circuit switch, wherein a positioning assembly is arranged on one side of the circuit breaker body, which is close to the surface of the push rod, and a fixed part is arranged at the free end of the push rod; when the push rod is pulled downwards to disconnect the circuit, the push rod drives the fixed part to move downwards and is clamped into the positioning assembly, and the positioning assembly fixes the position of the push rod.

Further, by fixed part including sliding connection in circuit breaker body and the T shape kelly that is located the push rod downside, T shape kelly surface articulates there is the connecting rod, the free end of connecting rod is flexible to be pegged graft in the push rod, the draw-in groove has been seted up to the one end that T shape kelly is close to locating component, and the one end that T shape kelly is close to the draw-in groove is the inclined plane form from being close to circuit breaker body one side to keeping away from circuit breaker body one side top-down.

Further, locating component is including being located the location shell of push rod downside, and the location shell is fixed in the circuit breaker body, from one side that is close to the circuit breaker body to one side of keeping away from the circuit breaker body fixedly connected with spring, connecting block and fixture block in proper order in the location shell cavity, fixture block and draw-in groove block adaptation, the through-hole with T shape kelly adaptation is seted up on location shell surface.

Further, the positioning assembly further comprises a handle vertically fixed on the surface of the connecting block, a sliding groove matched with the handle in a sliding mode is formed in the surface of the positioning shell, and the handle extends to the outer side of the sliding groove.

Furthermore, a plurality of balls are arranged on the inclined plane of the T-shaped clamping rod.

The utility model has the beneficial effects that:

by arranging the positioning assembly and the fixed part which are connected in a clamping manner, when the circuit needs to be closed for maintenance work, the push rod is pushed downwards to close the circuit, and meanwhile, the fixed part is clamped in the positioning assembly to fix the position of the push rod pulled downwards, so that the push rod is prevented from moving upwards under the action of external force, and the circuit is prevented from being opened; the safety performance of the equipment is effectively improved.

Drawings

Fig. 1 is a schematic structural view of a small circuit breaker of a touch prevention structure of the present invention;

FIG. 2 is a schematic cross-sectional view of a positioning assembly of the present invention;

FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;

in the figure: 1. a circuit breaker body; 2. a push rod; 3. a positioning assembly; 31. a positioning shell; 32. a spring; 33. connecting blocks; 34. a clamping block; 35. a handle; 36. a chute; 37. a through hole; 4. a fixed member; 41. a T-shaped clamping rod; 42. a connecting rod; 44. a clamping groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Examples

As shown in fig. 1 and fig. 2, the miniature circuit breaker with a touch-proof structure in this embodiment includes a circuit breaker body 1, and a push rod 2 located on one side of the surface of the circuit breaker body 1 for controlling a circuit switch, wherein a positioning assembly 3 is disposed on one side of the circuit breaker body 1 close to the surface of the push rod 2, and a fixed component 4 is disposed at a free end of the push rod 2; when the push rod 2 is pulled downwards to disconnect a circuit, the push rod 2 is driven by the fixed part 4 to move downwards and be clamped into the positioning component 3, and the positioning component 3 fixes the position of the push rod 2;

when the circuit needs to be closed for maintenance work, the push rod 2 is pushed downwards to close the circuit, and meanwhile, the fixed component 4 is clamped into the positioning component 3 to fix the position of the push rod 2 pulled downwards, so that the push rod 2 is prevented from moving upwards under the action of external force, and the circuit is opened; this embodiment is through setting up locating component 3 that the block is connected and by fixed part 4, and the position fixation when being convenient for close the circuit with push rod 2 prevents that push rod 2 from receiving external force, causes the circuit to be opened, produces dangerous problem, the effectual security performance who improves equipment.

As shown in fig. 3, the fixed part 4 includes a T-shaped clamping rod 41 slidably connected to the circuit breaker body 1 and located on the lower side of the push rod 2, a connecting rod 42 is hinged to the surface of the T-shaped clamping rod 41, the free end of the connecting rod 42 is telescopically inserted into the push rod 2, a clamping groove 44 is formed at one end of the T-shaped clamping rod 41 close to the positioning component 3, and one end of the T-shaped clamping rod 41 close to the clamping groove 44 is inclined from top to bottom from the side close to the circuit breaker body 1 to the side far away from the circuit breaker body 1;

in use, when the push rod 2 is pushed downwards, the connecting rod 42 drives the T-shaped clamping rod 41 to move downwards, so that one end of the T-shaped clamping rod 41 enters the positioning component 3, the T-shaped clamping rod 41 is clamped by the positioning component 3, and the position of the push rod 2 is fixed.

As shown in fig. 3, the positioning assembly 3 includes a positioning shell 31 located on the lower side of the push rod 2, and the positioning shell 31 is fixed to the circuit breaker body 1, a spring 32, a connecting block 33 and a latch 34 are fixedly connected in sequence from a side close to the circuit breaker body 1 to a side far away from the circuit breaker body 1 in a cavity of the positioning shell 31, the latch 34 is engaged with the slot 44, and a through hole 37 adapted to the T-shaped latch 41 is formed in the surface of the positioning shell 31;

when the positioning shell 31 is used, when the T-shaped clamping rod 41 is driven by the push rod 2 to move downwards, one end of the T-shaped clamping rod 41 enters the cavity of the positioning shell 31 through the through hole 37, the inclined surface at the end of the T-shaped clamping rod 41 pushes the clamping block 34 and the connecting block 33 to move towards one side close to the circuit breaker body 1 and extrude the spring 32, so that one end of the T-shaped clamping rod 41 enters the positioning shell 31, the spring 32 enables the connecting block 33 and the clamping block 34 to reset through resilience force, meanwhile, the clamping block 34 enters the clamping groove 44, the clamping block 34 and the clamping groove 44 are in a clamping state, and the position of the push rod 2 is fixed.

As shown in fig. 3, the positioning assembly 3 further includes a handle 35 vertically fixed on the surface of the connecting block 33, a sliding groove 36 slidably fitted with the handle 35 is formed on the surface of the positioning shell 31, and the handle 35 extends to the outer side of the sliding groove 36;

when the circuit breaker is used, when the clamping state of the positioning component 3 and the fixed part 4 needs to be opened, the handle 35 is pushed to one side close to the breaker body 1, the handle 35 drives the connecting block 33 to move to one side of the breaker body 1, the connecting block 33 drives the clamping block 34 to move along with the connecting block, and the clamping block 34 is separated from the clamping groove 44, so that the clamping state of the clamping block 34 and the clamping groove 44 is opened, the position of the push rod 2 can be changed, and a circuit is opened.

A plurality of balls (not shown in the figure) are arranged on the inclined surface of the T-shaped clamping rod 41;

the balls are arranged, so that the friction force of the inclined surface of the T-shaped clamping rod 41 when the clamping block 34 is pushed is reduced, and labor is saved.

It is noted that, in this document, relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (5)

1. Prevent touching miniature circuit breaker of structure to reach push rod (2) that are used for control circuit switch on one side of being located circuit breaker body (1) surface, its characterized in that including circuit breaker body (1): a positioning assembly (3) is arranged on one side, close to the surface of the push rod (2), of the circuit breaker body (1), and a fixed part (4) is arranged at the free end of the push rod (2); when the push rod (2) is pulled downwards to disconnect a circuit, the push rod (2) is driven to move downwards by the fixing part (4) and is clamped into the positioning assembly (3), and the positioning assembly (3) fixes the position of the push rod (2).

2. A small-sized circuit breaker of a touch preventing structure according to claim 1, wherein: by fixed part (4) including sliding connection in circuit breaker body (1) and T shape kelly (41) that are located push rod (2) downside, T shape kelly (41) surface articulates there is connecting rod (42), the free end of connecting rod (42) is flexible to be pegged graft in push rod (2), draw-in groove (44) have been seted up to the one end that T shape kelly (41) are close to locating component (3), one end that T shape kelly (41) are close to draw-in groove (44) is the inclined plane form from being close to circuit breaker body (1) one side to keeping away from circuit breaker body (1) one side top-down.

3. A small-sized circuit breaker of a touch preventing structure according to claim 1, wherein: locating component (3) are including locating shell (31) that is located push rod (2) downside, and locate shell (31) and be fixed in circuit breaker body (1), from one side that is close to circuit breaker body (1) to one side of keeping away from circuit breaker body (1) fixedly connected with spring (32), connecting block (33) and fixture block (34) in proper order in locating shell (31) cavity, fixture block (34) and draw-in groove (44) block adaptation, through-hole (37) with T shape kelly (41) adaptation are seted up on locating shell (31) surface.

4. A small-sized circuit breaker of a touch preventing structure according to claim 3, wherein: locating component (3) still include vertical fixation handle (35) on connecting block (33) surface, spout (36) with handle (35) sliding fit are seted up on location shell (31) surface, handle (35) extend to the spout (36) outside.

5. A small-sized circuit breaker of a touch preventing structure according to claim 2, wherein: the inclined plane department of T shape kelly (41) is provided with a plurality of ball.

Images