An extractable circuit breaker

Abstract

The utility model discloses a kind of draw-out circuit breaker, it is related to circuit breaker technical field, including shell, protection mechanism, extrusion mechanism and positioning mechanism, the front of shell is slidably provided with circuit breaker body, the bottom of shell is fixedly connected with base, the front of base is provided with operating hole, protection mechanism is set to the front of operating hole, extrusion mechanism is set between protection mechanism and base, positioning mechanism is set to the inside of base The utility model under the cooperation of extrusion mechanism when circuit breaker body is not needed to move out, protection mechanism can shield operating hole, so that foreign matter cannot be jammed into operating hole and cause operating hole to be blocked, when needing to move out circuit breaker body, move protection mechanism and position protection mechanism by positioning mechanism, so that operating hole is exposed, at this time, staff can directly insert into operating hole Handle is inserted into operating hole to move circuit breaker body, so that it is guaranteed that circuit breaker body can be stably drawn out when needed.

Description

Technical Field

[0001] This utility model relates to the field of circuit breaker technology, and in particular to a withdrawable circuit breaker. Background Technology

[0002] In modern power distribution systems, withdrawable circuit breakers are widely used in various distribution cabinets due to their significant advantages in terms of ease of maintenance, repair, and replacement. These circuit breakers are typically moved out and inserted onto the guide rail via a dedicated operating hole using tools such as a crank.

[0003] However, in practical applications, existing withdrawable circuit breaker structures have a common problem: the operating hole on the front of the base is usually exposed when not in use. This open design makes it easy for dust and foreign objects to enter and accumulate inside the operating hole. Long-term accumulation of contaminants may cause blockage of the operating hole or jamming of the internal mechanism, making it difficult to insert the crank handle or operate the circuit breaker when it is necessary to operate it in an emergency, which seriously affects maintenance efficiency. To address this, we propose a withdrawable circuit breaker. Utility Model Content

[0004] The purpose of this invention is to provide a withdrawable circuit breaker to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a withdrawable circuit breaker, comprising:

[0006] The outer casing has a circuit breaker body slidably mounted on its front side, and a base is fixedly connected to its bottom end. An operating hole is provided on the front side of the base.

[0007] A protective mechanism is provided on the front of the operating hole;

[0008] An extrusion mechanism is disposed between the protective mechanism and the base;

[0009] A positioning mechanism is disposed inside the base.

[0010] Preferably, the protective mechanism includes:

[0011] A sliding groove is formed on the front of the base, and the interior of the sliding groove is connected to the interior of the operating hole;

[0012] A blocking block, the outer wall of which is slidably connected to the inner wall of the groove, and the extrusion mechanism is disposed on one side of the blocking block.

[0013] Preferably, the extrusion mechanism includes:

[0014] A movable rod, which is fixedly connected to one side of the blocking block;

[0015] A movable hole is formed in the inner wall of the slide groove, and the movable rod is inserted into the inner wall of the movable hole;

[0016] A first spring is disposed between one end of the movable rod and the inner wall of the movable hole.

[0017] Preferably, the positioning mechanism includes:

[0018] The first movable groove is formed on the inner wall of the slide groove;

[0019] A positioning block, wherein the outer wall of the positioning block is slidably connected to the inner wall of the first movable groove;

[0020] A positioning hole is provided on the back of the blocking block.

[0021] Preferably, the base has a connecting groove inside, the inside of the connecting groove is connected to the inside of the first movable groove, a connecting block is slidably connected to the inner wall of the connecting groove, one side of the connecting block is fixedly connected to one side of the positioning block, and a second spring is provided between the back of the connecting block and the inner wall of the connecting groove.

[0022] Preferably, the base has a second movable groove on its front side, the interior of the second movable groove is connected to the interior of the connecting groove, and a pressing block is inserted into the inner wall of the second movable groove, the pressing block being fixedly connected to the other side of the connecting block.

[0023] Preferably, the front of the positioning block has a bevel, and the back side of the blocking block has a rounded chamfer.

[0024] Preferably, the front of the blocking block is provided with a slot, and the inner wall of the slot is fixedly connected with raised strips at intervals.

[0025] The technical effects and advantages of this utility model are as follows:

[0026] With the cooperation of the extrusion mechanism, the protective mechanism of this invention can block the operating hole, so that foreign objects will not get stuck in the operating hole and cause blockage. When it is necessary to remove the circuit breaker body, the protective mechanism is moved and positioned by the positioning mechanism, so that the operating hole is exposed. At this time, the operator can directly insert the crank into the operating hole to remove the circuit breaker body, thus ensuring that the circuit breaker body can be stably pulled out when needed. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0028] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0029] Figure 3 This is a top-view sectional view of the protective mechanism of this utility model.

[0030] Figure 4 This is a top sectional view of the positioning mechanism of this utility model.

[0031] In the diagram: 101, circuit breaker body; 102, outer casing; 103, base; 104, operating hole; 201, sliding groove; 202, blocking block; 301, movable hole; 302, movable rod; 303, first spring; 401, first movable groove; 402, positioning block; 403, positioning hole; 501, connecting block; 502, connecting groove; 503, second spring; 601, second movable groove; 602, pressing block; 701, inclined surface; 702, rounded chamfer; 801, slot; 802, raised strip. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] This utility model provides, for example Figures 1-4 The withdrawable circuit breaker shown includes a housing 102, a protective mechanism, a pressing mechanism, and a positioning mechanism. The circuit breaker body 101 is slidably disposed on the front of the housing 102, and a base 103 is fixedly connected to the bottom of the housing 102. An operating hole 104 is opened on the front of the base 103. The protective mechanism is disposed on the front of the operating hole 104, the pressing mechanism is disposed between the protective mechanism and the base 103, and the positioning mechanism is disposed inside the base 103. When the circuit breaker body 101 does not need to be moved out, the protective mechanism can block the operating hole 104 with the cooperation of the pressing mechanism, so that foreign objects will not get stuck in the operating hole 104 and cause blockage. When the circuit breaker body 101 needs to be moved out, the protective mechanism is moved and positioned by the positioning mechanism, so that the operating hole 104 is exposed. At this time, the operator can directly insert the crank into the operating hole 104 to move the circuit breaker body 101 out, thereby ensuring that the circuit breaker body 101 can be stably pulled out when needed.

[0034] The protective mechanism includes a slide 201 and a blocking block 202. The slide 201 is located on the front of the base 103 and its interior is connected to the interior of the operating hole 104. The outer wall of the blocking block 202 is slidably connected to the inner wall of the slide 201. The squeezing mechanism is located on one side of the blocking block 202. By blocking the front of the operating hole 104 with the blocking block 202, foreign objects can be prevented from getting stuck in the operating hole 104 and causing blockage.

[0035] The compression mechanism includes a movable rod 302, a movable hole 301, and a first spring 303. The movable rod 302 is fixedly connected to one side of the blocking block 202. The movable hole 301 is opened in the inner wall of the slide groove 201. The movable rod 302 is inserted into the inner wall of the movable hole 301. The first spring 303 is disposed between one end of the movable rod 302 and the inner wall of the movable hole 301. Through the elastic action of the first spring 303 and the connection of the movable rod 302, the blocking block 202 can stably block the front of the operating hole 104 in the slide groove 201, thereby improving the stability of the protective mechanism.

[0036] The positioning mechanism includes a first movable groove 401, a positioning block 402, and a positioning hole 403. The first movable groove 401 is formed on the inner wall of the slide groove 201. The outer wall of the positioning block 402 is slidably connected to the inner wall of the first movable groove 401. The positioning hole 403 is formed on the back of the blocking block 202. When the blocking block 202 moves to expose the operating hole 104, the blocking block 202 is positioned by inserting the positioning block 402 into the positioning hole 403, which makes it convenient for the operator to stably insert the crank handle into the operating hole 104.

[0037] The base 103 has a connecting groove 502 inside, which communicates with the interior of the first movable groove 401. A connecting block 501 is slidably connected to the inner wall of the connecting groove 502. One side of the connecting block 501 is fixedly connected to one side of the positioning block 402. A second spring 503 is provided between the back of the connecting block 501 and the inner wall of the connecting groove 502. The front of the base 103 has a second movable groove 601, which communicates with the interior of the connecting groove 502. The circuit breaker body 101 is connected to the outer casing 102. The inner wall of the second movable groove 601 is fitted with a pressing block 602. The pressing block 602 is fixedly connected to the other side of the connecting block 501. When the circuit breaker body 101 is pulled out and reset into the outer casing 102, the pressing block 602 is pressed. Under the connection of the connecting block 501, the positioning block 402 moves until the positioning block 402 separates from the positioning hole 403. At this time, under the elastic action of the first spring 303, the blocking block 202 automatically resets and moves to block the operation hole 104.

[0038] The positioning block 402 has a bevel 701 on its front side and a rounded chamfer 702 on the back side of the blocking block 202. When the blocking block 202 moves, the rounded chamfer 702 will press against the bevel 701, causing the positioning block 402 to move backward automatically, thereby improving the ease of operation of the positioning mechanism.

[0039] The shielding block 202 has a slot 801 on its front side, and protrusions 802 are fixedly connected to the inner wall of the slot 801 at intervals. The shielding block 202 can be moved by the operator by pressing the position of the protrusions 802, thereby improving the convenience of operation of the protective mechanism.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A withdrawable circuit breaker, characterized in that, include: The outer casing (102) has a circuit breaker body (101) slidably disposed on the front side of the outer casing (102), and a base (103) is fixedly connected to the bottom end of the outer casing (102). An operation hole (104) is provided on the front side of the base (103). A protective mechanism is provided on the front of the operating hole (104); An extrusion mechanism is disposed between the protective mechanism and the base (103); A positioning mechanism is disposed inside the base (103).

2. The withdrawable circuit breaker according to claim 1, characterized in that, The protective mechanism includes: The slide (201) is formed on the front of the base (103), and the interior of the slide (201) is connected to the interior of the operating hole (104); The outer wall of the blocking block (202) is slidably connected to the inner wall of the slide groove (201), and the extrusion mechanism is disposed on one side of the blocking block (202).

3. The withdrawable circuit breaker according to claim 2, characterized in that, The extrusion mechanism includes: Movable rod (302), which is fixedly connected to one side of the blocking block (202); A movable hole (301) is formed on the inner wall of the slide groove (201), and a movable rod (302) is inserted into the inner wall of the movable hole (301); The first spring (303) is disposed between one end of the movable rod (302) and the inner wall of the movable hole (301).

4. A withdrawable circuit breaker according to claim 2, characterized in that, The positioning mechanism includes: The first movable groove (401) is formed on the inner wall of the slide (201); The positioning block (402) has its outer wall slidably connected to the inner wall of the first movable groove (401); Positioning hole (403) is provided on the back of the blocking block (202).

5. A withdrawable circuit breaker according to claim 4, characterized in that, The base (103) has a connecting groove (502) inside, which is connected to the inside of the first movable groove (401). A connecting block (501) is slidably connected to the inner wall of the connecting groove (502). One side of the connecting block (501) is fixedly connected to one side of the positioning block (402). A second spring (503) is provided between the back of the connecting block (501) and the inner wall of the connecting groove (502).

6. A withdrawable circuit breaker according to claim 5, characterized in that, The base (103) has a second movable groove (601) on its front side. The interior of the second movable groove (601) is connected to the interior of the connecting groove (502). A pressing block (602) is inserted into the inner wall of the second movable groove (601). The pressing block (602) is fixedly connected to the other side of the connecting block (501).

7. A withdrawable circuit breaker according to claim 4, characterized in that, The positioning block (402) has a bevel (701) on its front side, and the blocking block (202) has a rounded chamfer (702) on its back side.

8. A withdrawable circuit breaker according to claim 2, characterized in that, The front of the blocking block (202) is provided with a slot (801), and the inner wall of the slot (801) is fixedly connected with protruding strips (802) at intervals.

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