Quick-release pillar for low-voltage circuit breaker

Abstract

The utility model relates to the field of circuit breakers, in particular to a quick-release strut for a low-voltage circuit breaker, which adopts the technical scheme that the quick-release strut for the low-voltage circuit breaker comprises a circuit breaker base, a circuit breaker shell, a connecting terminal, an elastic contact, a control switch and an insulating strut, the upper end and the lower end of the control switch are provided with three sets of groove points which are distributed at equal intervals, the edge of the right end of the control switch is obliquely provided with an insulating handle, the center of the inner wall of the circuit breaker shell is provided with an insulating interlayer, and the upper end and the lower end of the insulating interlayer are provided with three sets of through holes which are distributed at equal intervals in a penetrating mode. According to the invention, the insulating pillar can be conveniently and rapidly disassembled by a worker, and the electric connection between the connecting terminal and the insulating pillar can be blocked when the insulating pillar is disassembled by the worker through the arc-shaped bent control switch which is rotationally adjusted, so that the insulating pillar can be rapidly replaced by the worker under the condition of local power failure.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of circuit breaker, specifically relates to low voltage circuit breaker quick detachable support post. BACKGROUND

[0002] Low voltage circuit breaker is a kind of protection device for power system, mainly used for overload, short circuit and leakage protection, it can automatically cut off current, prevent circuit or equipment damage, at the same time, protect personal safety, and the insulating support post on low voltage circuit breaker plays an important role in its working process.

[0003] The insulating support post on the existing low voltage circuit breaker is usually installed on the low voltage circuit breaker by bolt or integrally connected with the low voltage circuit breaker, and the insulating support post needs to be replaced or maintained by electrician after long time use, and the integral connection or bolt connection is not convenient for workers to disassemble and maintain the insulating support post, and if the whole circuit is directly powered off when maintaining the low voltage circuit breaker, other appliances will be affected.

[0004] Therefore, in view of the problems that the existing insulating column on low voltage circuit breaker is very time-consuming and laborious in disassembly and maintenance, and the safety of workers during maintenance and construction is not good, the low voltage circuit breaker quick detachable support post is developed, which can make workers quickly replace the insulating support post on the low voltage circuit breaker under the condition of partial power-off during maintenance and repair of the existing low voltage circuit breaker by adding the rotating adjusting switch structure, threaded disassembly structure and top shell structure to the low voltage circuit breaker. SUMMARY

[0005] In order to overcome the problems that the existing insulating column on low voltage circuit breaker is very time-consuming and laborious in disassembly and maintenance, and the safety of workers during maintenance and construction is not good.

[0006] The technical scheme of the utility model is as follows: the low voltage circuit breaker quick detachable support post comprises a circuit breaker base, a circuit breaker shell and a connecting terminal, and further comprises elastic contacts, a control switch and an insulating support post, the upper end of the circuit breaker base is provided with the circuit breaker shell, the upper and lower ends of the control switch are provided with three groups of equidistantly distributed recess points, the right end edge of the control switch is obliquely provided with an insulating handle, the inner wall center of the circuit breaker shell is provided with an insulating partition layer, the upper and lower ends of the insulating partition layer are provided with three groups of equidistantly distributed through holes, the upper end of the through hole is fixedly connected with three groups of equidistantly distributed threaded sleeves, and the lower end outer wall of the insulating support post is fixedly connected with a threaded block.

[0007] Preferably, the threaded block on the insulating support matches the threaded sleeve on the insulating layer, which can facilitate workers to quickly disassemble the insulating support, and the arc-shaped control switch can be manually rotated by workers when the insulating support is disassembled, so that the recess point on the control switch is moved out of the contact point on the elastic contact point and the contact point on the insulating support, thereby blocking the electrical connection between the connecting terminal and the insulating support, so that workers can quickly replace the insulating support under the condition of local power failure.

[0008] Preferably, the right end of the circuit breaker base is provided with a hinge groove, and the front and rear ends of the circuit breaker base are fixedly connected with equally distributed foot pins.

[0009] Preferably, the inner wall of the circuit breaker shell is provided with a connecting terminal, and the upper end of the connecting terminal is provided with three groups of equally distributed elastic contact points.

[0010] Preferably, the control switch is hinged in the hinge groove, and the upper end of the elastic contact point is fixedly connected with a connecting socket.

[0011] Preferably, the lower end of the insulating support passes through the through hole and is installed in the connecting socket, the lower end contact point of the connecting socket is matched with the recess point, and the recess point is matched with the contact point on the elastic contact point.

[0012] Preferably, the upper end of the circuit breaker shell is provided with a front and rear distributed second top shell and a first top shell, the upper and lower ends of the second top shell are provided with three groups of equally distributed second groove bodies, and the upper and lower ends of the first top shell are provided with three groups of equally distributed first groove bodies.

[0013] Preferably, the inner wall of the first groove body is matched with the rear end outer wall of the insulating support, and the inner wall of the second groove body is matched with the front end outer wall of the insulating support.

[0014] The utility model discloses the beneficial effects of:

[0015] 1. By the threaded block on the insulating support matches the threaded sleeve on the insulating layer, can make the insulating support screw installation to the threaded sleeve, compares the installation structure of original insulating support, can facilitate workers to disassemble the insulating support and carry out quick disassembly,

[0016] 2. By the arc-shaped control switch can be manually rotated by workers when the insulating support is disassembled, so that the recess point on the control switch is moved out of the contact point on the elastic contact point and the contact point on the insulating support, thereby blocking the electrical connection between the connecting terminal and the insulating support, compared with the original low-voltage circuit breaker structure, workers can quickly replace the insulating support under the condition of local power failure. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a low voltage circuit breaker quick detachable support's three-dimensional structure schematic diagram is shown.

[0018] Figure 2 The utility model discloses a low voltage circuit breaker quick detachable support's three-dimensional structure split schematic diagram is shown.

[0019] Figure 3 The utility model discloses a low voltage circuit breaker quick detachable support's three-dimensional structure split schematic diagram is shown.

[0020] Figure 4 The utility model discloses a low voltage circuit breaker quick detachable support's three-dimensional structure split schematic diagram is shown.

[0021] Figure 5 The utility model discloses a low voltage circuit breaker quick detachable support's three-dimensional structure split schematic diagram is shown.

[0022] Figure 6 The utility model discloses a low voltage circuit breaker quick detachable support's three-dimensional structure split schematic diagram is shown.

[0023] Figure 7 The utility model discloses a low voltage circuit breaker quick detachable support's three-dimensional structure split schematic diagram is shown.

[0024] Mark 1-circuit breaker base, 2-circuit breaker shell, 3-first top end shell, 4-insulating support, 5-second top end shell, 6-control switch, 7-connection terminal, 8-foot needle, 9-hinge groove, 10-insulating spacer, 11-through hole, 12-spring contact, 13-connection socket, 14-insulating handle, 15-groove point, 16-thread block, 17-thread sleeve, 18-first groove body, 19-second groove body. DETAILED DESCRIPTION

[0025] The utility model will be further explained below in connection with the drawings and examples.

[0026] Please refer to Figures 1-7The utility model provides a kind of embodiment: low voltage circuit breaker quick release type support, including circuit breaker base 1, circuit breaker shell 2 and connecting terminal 7, further including elastic contact 12, control switch 6 and insulating support 4, the upper end of circuit breaker base 1 is equipped with circuit breaker shell 2, the upper and lower ends of control switch 6 are equipped with three groups of recess point 15 of equidistant distribution, the right end edge of control switch 6 is obliquely equipped with insulating handle 14, the inner wall center of circuit breaker shell 2 is equipped with insulating partition 10, three groups of through hole 11 of equidistant distribution are penetrated and equipped in the upper and lower ends of insulating partition 10, the upper end of through hole 11 is fixedly connected with three groups of threaded sleeve 17 of equidistant distribution, the lower end outer wall of insulating support 4 is fixedly connected with threaded block 16, threaded block 16 is compatible with threaded sleeve 17, by threaded block 16 on insulating support 4 cooperate threaded sleeve 17 on insulating partition 10, it can be convenient for worker to quickly dismount insulating support 4, and arc curved control switch 6 can be when worker dismounts insulating support 4, by worker manually poking control switch 6 and rotating, make recess point 15 on control switch 6 remove from the contact point on elastic contact 12 and the contact point on insulating support 4, to block the electrical connection between connecting terminal 7 and insulating support 4, so that worker can replace insulating support 4 quickly under the condition of partial power failure.

[0027] Please refer to Figures 3-4 In the embodiment, the right end of circuit breaker base 1 is penetrated and equipped with hinged groove 9, the front and rear ends of circuit breaker base 1 are fixedly connected with equidistantly distributed foot needle 8, in use, by foot needle 8, worker can conveniently install circuit breaker base 1 to power line, the inner wall center of circuit breaker shell 2 is equipped with connecting terminal 7, the upper end of connecting terminal 7 is equipped with three groups of equidistantly distributed elastic contact 12, in use, by elastic contact 12, connecting terminal 7 can be electrically connected with insulating support 4 by cooperating control switch 6, control switch 6 is hinged in hinged groove 9, the upper end of elastic contact 12 is fixedly connected with connecting socket 13, in use, by connecting socket 13, power on connecting terminal 7 can be transmitted to insulating support 4.

[0028] Please refer to Figures 6-7In the embodiment, the lower end of the insulating support 4 passes through the through hole 11 and is installed in the connecting socket 13, the lower end contact point of the connecting socket 13 is matched with the recess point 15, the recess point 15 is matched with the contact point on the elastic contact point 12, in use, the contact type electrical connection can be made by matching the lower end contact point of the connecting socket 13 and the contact point on the elastic contact point 12 through the recess point 15, the upper end of the circuit breaker shell 2 is provided with the front and rear distributed second top shell 5 and the first top shell 3, the upper and lower ends of the second top shell 5 are provided with three sets of equidistantly distributed second grooves 19, the upper and lower ends of the first top shell 3 are provided with three sets of equidistantly distributed first grooves 18, in use, the upper end of the circuit breaker shell 2 can be closed by the second top shell 5 and the first top shell 3 to protect the connecting terminal 7 and the elastic contact point 12 inside, the inner wall of the first groove 18 is matched with the rear end outer wall of the insulating support 4, and the inner wall of the second groove 19 is matched with the front end outer wall of the insulating support 4, in use, the contact point outer wall of the lower end of the insulating support 4 can be protected by the first groove 18 and the second groove 19.

[0029] In use, the foot pin 8 on the circuit breaker base 1 is first installed on the power supply line frame by a bolt, the line is installed on the connecting terminal 7, and the recess point 15 on the control switch 6 is installed between the contact point on the elastic contact point 12 and the contact point on the insulating support 4 by manually rotating the insulating handle 14 to make the power supply;

[0030] When the insulating support 4 needs to be maintained, the recess point 15 on the control switch 6 is removed from between the contact point on the elastic contact point 12 and the contact point on the insulating support 4 by rotating the insulating handle 14, so that the elastic contact point 12 on the connecting terminal 7 is disconnected from the insulating support 4, thereby forming a local power failure, and then the first top shell 3 and the second top shell 5 are removed from the upper end of the circuit breaker shell 2, and the worker manually rotates the insulating support 4 to remove the threaded block 16 from the threaded sleeve 17 for maintenance or replacement.

[0031] Through the above steps, the threaded block 16 matches the threaded sleeve 17, which can facilitate the worker to quickly disassemble the insulating support 4 from the connecting terminal 7, and the arc-shaped control switch 6 can block the electrical connection between the connecting terminal 7 and the insulating support 4 when the worker disassembles the insulating support 4, so that the worker can quickly replace the insulating support 4 under the condition of local power failure, solving the problem that the existing insulating column on the low-voltage circuit breaker is very time-consuming and laborious in disassembly and maintenance, and the safety of the worker during maintenance is not good.

[0032] The embodiment of the utility model is explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A quick-mounting support for low voltage circuit breakers, comprising a base (1) for the circuit breaker, a housing (2) for the circuit breaker and a connection terminal (7), characterized in that: It also includes elastic contact (12), control switch (6) and insulating pillar (4), the upper end of circuit breaker base (1) is installed with circuit breaker shell (2), the upper and lower ends of control switch (6) are provided with three sets of groove points (15) distributed at equal intervals, the right end edge of control switch (6) is installed with insulating handle (14) obliquely, the inner wall center of circuit breaker shell (2) is installed with insulating partition layer (10), the upper and lower ends of insulating partition layer (10) are provided with three sets of through holes (11) distributed at equal intervals, the upper end of through hole (11) is fixedly connected with three sets of threaded sleeves (17) distributed at equal intervals, the lower end outer wall of insulating pillar (4) is fixedly connected with threaded block (16), threaded block (16) is matched with threaded sleeve (17).

2. The low voltage circuit breaker quick disconnect post of claim 1, wherein: The right end of circuit breaker base (1) is provided with hinged groove (9), and the front and rear ends of circuit breaker base (1) are fixedly connected with equally distributed foot pins (8).

3. The low voltage circuit breaker quick disconnect post of claim 2, wherein: The inner wall center of circuit breaker shell (2) is installed with connecting terminal (7), and the upper end of connecting terminal (7) is installed with three sets of elastic contact (12) distributed at equal intervals.

4. The low voltage circuit breaker quick disconnect post of claim 3, wherein: Control switch (6) is hinged in hinged groove (9), and the upper end of elastic contact (12) is fixedly connected with connecting socket (13).

5. The low voltage circuit breaker quick disconnect post of claim 4, wherein: The lower end of insulating pillar (4) passes through through hole (11) and is installed in connecting socket (13), the lower end contact point of connecting socket (13) is matched with groove point (15), and groove point (15) is matched with the contact point on elastic contact (12).

6. The low voltage circuit breaker quick disconnect post of claim 5, wherein: The upper end of circuit breaker shell (2) is installed with front and rear distributed second top shell (5) and first top shell (3), the upper and lower ends of second top shell (5) are provided with three sets of second groove bodies (19) distributed at equal intervals, and the upper and lower ends of first top shell (3) are provided with three sets of first groove bodies (18) distributed at equal intervals.

7. The low voltage circuit breaker quick disconnect post of claim 6, wherein: The inner wall of first groove body (18) is matched with the rear end outer wall of insulating pillar (4), and the inner wall of second groove body (19) is matched with the front end outer wall of insulating pillar (4).

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