阅读说明：本技术 一种电路断路器 (Circuit breaker ) 是由 陈欣欣 于 2021-07-02 设计创作，主要内容包括：本发明提供一种电路断路器,包括断路器主体,活动柱,连接板,套筒,空心柱,开关和夹紧块,所述断路器主体顶部内侧壁活动连接有活动柱,所述活动柱底部末端固定安装有连接板,所述连接板底部设置有套筒,所述套筒后侧设置有空心柱,通过设置有活动柱、连接板、夹紧块及套筒等装置,由活动柱的下移带动连接板上的夹紧板对夹紧块进行驱动,夹紧块相向移动对进入电线接头孔中的电线进行夹紧固定,当需要将电线拆卸时可以使用手掌对夹紧块的后端进行按压,当伸缩柱与夹紧块分离后因为其中复位弹簧的弹力将夹紧板向上弹去,使得活动柱复位,上述结构便于电线接头的固定,无需借助外界工具即可轻松实现电线接头的安装及拆卸。(The invention provides a circuit breaker, which comprises a breaker main body, a movable column, a connecting plate, a sleeve, a hollow column, a switch and a clamping block, wherein the inner side wall of the top of the breaker main body is movably connected with the movable column, the tail end of the bottom of the movable column is fixedly provided with the connecting plate, the bottom of the connecting plate is provided with the sleeve, the rear side of the sleeve is provided with the hollow column, the movable column, the connecting plate, the clamping block, the sleeve and other devices are arranged, the movable column moves downwards to drive the clamping plate on the connecting plate to drive the clamping block, the clamping block moves oppositely to clamp and fix an electric wire entering a wire connector hole, when the electric wire needs to be disassembled, the rear end of the clamping block can be pressed by a palm, after the telescopic column is separated from the clamping block, the clamping plate is upwards bounced due to the elasticity of a reset spring, so that the movable column is reset, the structure is convenient for fixing the electric wire connector, the installation and the disassembly of the wire joint can be easily realized without the help of external tools.)

1. The utility model provides a circuit breaker, includes circuit breaker main part (1), movable post (2), connecting plate (3), sleeve (4), hollow post (5), switch (7) and clamp tight piece (8), its characterized in that: the inner side wall of the top of the breaker main body (1) is movably connected with a movable column (2), the tail end of the bottom of the movable column (2) is fixedly provided with a connecting plate (3), the bottom of the connecting plate (3) is provided with a sleeve (4), the rear side of the sleeve (4) is provided with a hollow column (5), a clamping block (8) is arranged right above the hollow column (5), and the top of the breaker main body (1) is rotatably connected with a switch (7);

a sleeve column (201) is movably sleeved on the inner side wall of the movable column (2), and triangular wedges (202) are symmetrically and fixedly connected to the outer walls of two sides of the sleeve column (201);

two sides of the connecting plate (3) are fixedly connected with two groups of clamping plates (302), the outer wall of one side, away from the two groups of clamping plates (302), is fixedly connected with a first bump (303), and a fixed pin shaft (301) is arranged between the clamping plates (302) and the connecting plate (3);

the inner wall of the bottom of the sleeve (4) is fixedly connected with a return spring (402), and the tail end of the top of the return spring (402) is fixedly connected with a telescopic column (401);

the telescopic column (401) and the clamping block (8) are in mutual contact.

2. A circuit breaker according to claim 1, wherein: the inner side of the top of the breaker main body (1) corresponds to the movable column (2) and is provided with a sliding hole (101), and the outer wall of the front side of the breaker main body (1) is provided with a mounting groove (102).

3. A circuit breaker according to claim 2, wherein: the mounting groove (102) is internally and fixedly sleeved with a limiting cylinder (6), and the inner side wall of the limiting cylinder (6) is fixedly sleeved with a protective lantern ring (601).

4. A circuit breaker according to claim 1, wherein: the outer walls of the two sides of the movable column (2) are provided with sliding grooves (203) at positions corresponding to the triangular wedges (202), and the inner side walls of the sliding holes (101) are provided with triangular grooves (103) at positions corresponding to the triangular wedges (202).

5. A circuit breaker according to claim 1, wherein: the included angle between the clamping plate (302) and the connecting plate (3) is 70 degrees.

6. A circuit breaker according to claim 1, wherein: hollow post (5) inside wall is provided with torque spring (502), torque spring (502) inside wall is provided with rotates post (501), it is terminal with clamp block (8) bottom outer wall fixed connection to rotate post (501) top.

7. A circuit breaker according to claim 6, wherein: the quantity of pressing from both sides tight piece (8) is two sets of, is the symmetric distribution between two sets of tight piece (8), and is two sets of press from both sides close one side outer wall of tight piece (8) and seted up recess (801), and two sets of press from both sides tight piece (8) and leave one side outer wall and first lug (303) corresponding position fixedly connected with second lug (802), chucking each other between first lug (303) and second lug (802).

Technical Field

The invention relates to the technical field of circuit breakers, in particular to a circuit breaker.

Background

The circuit breaker is a switching device capable of closing, carrying and opening a current under a normal circuit condition and closing, carrying and opening a current under an abnormal circuit condition within a prescribed time, and is used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply line, a motor and the like, and automatically cutting off a circuit when a fault such as serious overload, short circuit, undervoltage and the like occurs, and has a function equivalent to a combination of a fuse type switch, an over-under-heat relay and the like, and parts do not need to be changed after a fault current is broken.

The existing circuit breaker mainly has the following problems: 1. the wiring position of the circuit breaker is generally fixed by bolts to the connector of the electric wire, and a corresponding tool is needed during installation, so that the installation of the connector of the electric wire is inconvenient; 2. after the fixing bolt is used for a period of time, the fixing bolt can be loosened due to external environment such as vibration or jolt, and the fixing bolt is not provided with a corresponding anti-loosening structure, so that the connection contact between the wire connector and the circuit breaker is poor, and the normal use of the circuit breaker is influenced; we therefore propose a circuit breaker.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a circuit breaker, which solves the problems that the joint of the circuit breaker is inconvenient to fix and easy to loosen.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a circuit breaker comprises a breaker main body, a movable column, a connecting plate, a sleeve, a hollow column, a switch and a clamping block, wherein the inner side wall of the top of the breaker main body is movably connected with the movable column;

the inner side wall of the movable column is movably sleeved with a sleeve column, and the outer walls of two sides of the sleeve column are symmetrically and fixedly connected with triangular wedges;

two sides of the connecting plate are fixedly connected with two groups of clamping plates, the outer wall of one side of each group of clamping plates, which is away from the connecting plate, is fixedly connected with a first lug, and a fixed pin shaft is arranged between each clamping plate and the connecting plate;

the inner wall of the bottom of the sleeve is fixedly connected with a return spring, and the tail end of the top of the return spring is fixedly connected with a telescopic column;

the telescopic column is contacted with the clamping block.

Preferentially, the inner side of the top of the breaker main body is provided with a sliding hole corresponding to the movable column, and the outer wall of the front side of the breaker main body is provided with a mounting groove.

Preferentially, the inside fixed cover of mounting groove rear side has connect a spacing section of thick bamboo, the fixed protection lantern ring that has cup jointed of a spacing section of thick bamboo inside wall.

Preferentially, the outer walls of the two sides of the movable column are provided with sliding grooves corresponding to the triangular wedges, and the inner side walls of the sliding holes are provided with triangular grooves corresponding to the triangular wedges.

Preferably, the included angle between the clamping plate and the connecting plate is 70 °.

Preferentially, the hollow column inner side wall is provided with a torque spring, the torque spring inner side wall is provided with a rotating column, and the rotating column top end is fixedly connected with the outer wall of the clamping block bottom.

Preferably, the number of the clamping blocks is two, the two groups of clamping blocks are symmetrically distributed, a groove is formed in the outer wall of one side close to the two groups of clamping blocks, the second convex block is fixedly connected to the position, corresponding to the first convex block, of the outer wall of one side, away from the two groups of clamping blocks, and the first convex block and the second convex block are clamped mutually.

(III) advantageous effects

The invention provides a circuit breaker. The method has the following beneficial effects:

1. according to the invention, the movable column, the connecting plate, the clamping block, the sleeve and other devices are arranged, the clamping plate on the connecting plate is driven by the downward movement of the movable column to drive the clamping block, the clamping blocks move oppositely to clamp and fix the electric wire entering the electric wire connector hole, when the electric wire needs to be disassembled, the back end of the clamping block can be pressed by a palm, and after the telescopic column is separated from the clamping block, the clamping plate is upwards bounced off due to the elasticity of the reset spring, so that the movable column is reset, the structure is convenient for fixing the electric wire connector, and the installation and the disassembly of the electric wire connector can be easily realized without an external tool;

2. according to the invention, the sleeve column is movably connected in the movable column through the sleeve column and other devices, so that electric wires with different thicknesses can be better fixed conveniently, when the movable column needs to be fixed, the sleeve column is rotated to be clamped in, so that the triangular wedge is clamped in the triangular groove to realize the fixation of the sleeve column, and different electric wires can be fixed conveniently;

3. according to the invention, by arranging the limiting cylinder and other devices, for some electric wires with bent connectors, the contact between the connectors and the internal conductive elastic sheet is difficult to ensure due to the bending of the head of the electric wires when the circuit breaker is connected, the electric wires are inserted into the limiting cylinder, the limiting cylinder guides and limits the electric wires so as to facilitate the accurate contact between the electric wires and the conductive elastic sheet, and the protection sleeve ring arranged in the limiting cylinder can protect the extruded electric wire area and prevent the electric wires from being damaged.

4. According to the invention, the first lug and the second lug are respectively arranged on the clamping plate and the clamping block and are mutually clamped by matching of the first lug, the second lug and the hollow column through extrusion of the first lug and the second lug and the triangular groove, the clamping block is connected with the hollow column through the rotating column, the torque spring is arranged between the rotating column and the hollow column, the torque spring provides elastic force for the rotating column, the direction of the torque spring is opposite to the direction of the compression force of the clamping block by the second lug, so that the clamping block cannot move in an environment without external force, the fixed connection between the wire connector and the circuit breaker can be ensured, the circuit breaker cannot be loosened from the wire, and the normal operation of the circuit breaker is ensured.

Drawings

Fig. 1 is a schematic perspective view of a circuit breaker according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic view of the connection structure between the movable column, the connecting plate, the clamping block, the sleeve and the hollow column;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a schematic perspective view of a connection structure between a movable column, a connecting plate, a clamping block, a sleeve and a hollow column;

fig. 7 is a schematic view of a connection structure between a breaker main body and a sleeve column;

FIG. 8 is a schematic view of the cross-sectional structure A-A of FIG. 7;

fig. 9 is a partial enlarged view of fig. 8 at D.

The circuit breaker comprises a circuit breaker main body, a circuit breaker main body and a circuit breaker control device, wherein 1; 101. a slide hole; 102. mounting grooves; 103. a triangular groove; 2. a movable post; 201. sleeving a column; 202. a triangular wedge; 203. a chute; 3. a connecting plate; 301. fixing a pin shaft; 302. a clamping plate; 303. a first bump; 4. a sleeve; 401. a telescopic column; 402. a return spring; 5. a hollow column; 501. rotating the column; 502. a torque spring; 6. a limiting cylinder; 601. a protective collar; 7. a switch; 8. a clamping block; 801. a groove; 802. and a second bump.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Example (b):

as shown in fig. 1 to 9, an embodiment of the present invention provides a circuit breaker, including a breaker main body 1, a movable column 2, a connecting plate 3, a sleeve 4, a hollow column 5, a switch 7 and a clamping block 8, wherein the inner side wall of the top of the breaker main body 1 is movably connected with the movable column 2, the bottom end of the movable column 2 is fixedly installed with the connecting plate 3, the bottom of the connecting plate 3 is provided with the sleeve 4, the rear side of the sleeve 4 is provided with the hollow column 5, the clamping block 8 is arranged right above the hollow column 5, and the top of the breaker main body 1 is rotatably connected with the switch 7;

the inner side of the top of the breaker main body 1 is provided with a sliding hole 101 corresponding to the position of the movable column 2, the outer wall of the front side of the breaker main body 1 is provided with a mounting groove 102, two sides of a connecting plate 3 are fixedly connected with two groups of clamping plates 302, the two groups of clamping plates 302 are fixedly connected with a first convex block 303 away from the outer wall of one side, a fixed pin 301 is arranged between the clamping plates 302 and the connecting plate 3, a limiting cylinder 6 is fixedly sleeved inside the rear side of the mounting groove 102, the inner side wall of the limiting cylinder 6 is fixedly sleeved with a protective sleeve ring 601, the included angle between the clamping plates 302 and the connecting plate 3 is 70 degrees, the number of the clamping blocks 8 is two groups, the two groups of clamping blocks 8 are symmetrically distributed, the inner side wall of a hollow column 5 is provided with a torque spring 502, the inner side wall of the torque spring 502 is provided with a rotating column 501, the tail end of the top of the rotating column 501 is fixedly connected with the outer wall of the bottom of the clamping block 8, because the clamping block 8 is fixedly connected with the rotating column 501, the rotating column 501 is connected with the hollow column 5 through the torque spring 502, the two groups of clamping blocks 8 are kept parallel due to the torque force generated by the torque spring 502 in a normal state, a wire installation area is formed between the two groups of clamping blocks 8, the limiting cylinder 6 is positioned in the wire installation area, in order to prevent the bending of the connecting end of the electric wire, the electric wire needs to pass through the limiting cylinder 6 to be guided and limited, the electric wire is ensured to enter the interior of the breaker main body 1 and can be successfully contacted with a metal elastic sheet preset in the breaker main body 1, then the movable column 2 is pressed downwards, the movable column 2 drives the connecting plate 3 to be pressed downwards, as the clamping plates 302 are fixedly connected with the two ends of the connecting plate 3, the clamping plates 302 are contacted with the clamping blocks 8, as the clamping plates 302 are obliquely installed, the contact surface of the clamping blocks 8 is subjected to oblique pressure, the two groups of clamping blocks 8 rotate by taking the rotating column 501 as the center, and further enable the two groups of clamping blocks 8 to move oppositely, two sets of 8 rear end diagonals of clamp splice press from both sides tight fixedly to the outer wall of a spacing section of thick bamboo 6, extrusion force that a spacing section of thick bamboo 6 will receive is transmitted to inboard electric wire on, it is fixed to make the electric wire pressed from both sides, because spacing section of thick bamboo 6 itself is flexible material, and spacing 6 inside walls have set up the protection lantern ring 601, the protection lantern ring 601 is the rubber material, the protection lantern ring 601 is protected by the clamp part to the electric wire, spacing section of thick bamboo 6 is protected the electric wire lateral wall, prevent that the electric wire from taking place wearing and tearing when daily use, so that the dismantlement maintenance of follow-up electric wire.

The inner side wall of the movable column 2 is sleeved with a sleeve column 201, the inner side wall of the movable column 2 is movably sleeved with the sleeve column 201, and the outer walls of two sides of the sleeve column 201 are symmetrically and fixedly connected with triangular wedges 202; the outer walls of two sides of the movable column 2 are provided with sliding grooves 203 corresponding to the triangular wedges 202, the inner side wall of the sliding hole 101 is provided with triangular grooves 103 corresponding to the triangular wedges 202, in order to adapt to installation of electric wires with different thicknesses and guarantee fixation of the movable column 2, the sleeve column 201 moves downwards along with the movable column 2, when the position of the limiting cylinder 6 clamped by the two groups of clamping blocks 8 is reached, the sleeve column 201 is rotated, the triangular wedges 202 on two sides of the sleeve column 201 are clamped into the triangular grooves 103, the triangular wedges 202 are matched with each other to fix the sleeve column 201, the sleeve column 201 is connected with the movable column 2, the movable column 2 is fixed by fixing the sleeve column 201, the triangular grooves 103 are in multiple groups, and the distance between every two adjacent groups of the triangular grooves 103 is equal, so that the position of the movable column 2 can be adjusted according to the thickness of the electric wires, and installation of the electric wires with different thicknesses is adapted;

the number of the clamping blocks 8 is two, the two groups of clamping blocks 8 are symmetrically distributed, a groove 801 is formed in the outer wall of one side of the two groups of clamping blocks 8 close to each other, a second lug 802 is fixedly connected to the position, corresponding to the first lug 303, of the outer wall of one side of the two groups of clamping blocks 8, the two groups of clamping blocks 8 are mutually clamped, the clamping blocks 8 are rotatably connected with the hollow column 5 through the rotating column 501, a torque spring 502 is arranged between the hollow column 5 and the rotating column 501, the torque spring 502 applies a torque force to the clamping blocks 8 on the rotating column 501, the first lug 303 and the second lug 802 are respectively and fixedly connected to the outer walls of one side of the clamping plate 302 and one side of the clamping blocks 8 close to each other, the clamping blocks 8 are mutually extruded to receive oblique pressure on the contact surface of the clamping blocks 8, and the direction and the magnitude of the torque force received by the clamping blocks 8 are matched with the oblique pressure and direction received by the clamping blocks 8 in contact, the clamping block 8 is further firmly fixed, so that the clamping block 8 cannot move without applying external force, the electric wire in the limiting cylinder 6 is clamped by the diagonal angle at the rear end of the clamping block 8, the electric wire and the circuit breaker main body 1 are fixed, and the electric wire and the circuit breaker main body 1 are prevented from loosening;

the inner wall of the bottom of the sleeve 4 is fixedly connected with a return spring 402, and the tail end of the top of the return spring 402 is fixedly connected with a telescopic column 401; telescopic column 401 and clamp piece 8 contact each other, when needs are dismantled the electric wire, can will press from both sides 8 front end subtend angles of piece and carry out the removal in opposite directions, it rotates until telescopic column 401 and the separation of clamp piece 8 along rotating post 501 to press from both sides tight piece 8, because telescopic column 401 passes through reset spring 402 and is connected with sleeve 4, after telescopic column 401 breaks away from with clamp piece 8, reset spring 402 release compression elastic potential energy drive telescopic column 401 at this moment shifts up and goes clamp plate 302 top, clamp plate 302 and activity post 2 looks fixed connection, and then realize the restoration of activity post 2, make clamp plate 302 and clamp piece 8 separation, torque spring 502 drives and rotates post 501 and resets, it drives clamp piece 8 to rotate post 501 and resets to rotate post 501, it separates with spacing section of thick bamboo 6 to press from both sides tight 8 rear end subtend angles of clamp piece, the extrusion force that the electric wire received disappears, can take out the electric wire.

The working principle is as follows:

installation process of the electric wire and the breaker: the connecting plate 3 fixedly connected with the movable column 2 is driven to move downwards by pressing the movable column 2, and an oblique force is applied to the clamping block 8 by mutually extruding the first lug 303 on the connecting plate 3 and the second lug 802 on the clamping block 8, so that the clamping block 8 moves to fix the electric wire, and the electric wire is convenient to install;

the process of preventing the electric wire from loosening comprises the following steps: because the clamping block 8 is rotationally connected with the hollow column 5 through the rotating column 501 and the torque spring 502, a torque force is generated under the action of the torque spring 502 and is matched with the extrusion force applied to the clamping block 8, so that the clamping block 8 can be fixed, and the electric wire is prevented from loosening;

electric wire and circuit breaker dismantlement process: when the electric wire needs to be disassembled, the rear ends of the two groups of clamping blocks 8 only need to be manually moved in opposite directions, the telescopic column 401 at the bottom of the electric wire is ejected out under the driving of the reset spring 402, the clamping plate 302 rebounds to the original position, the reset of the movable column 2, namely the reset of the clamping blocks 8, is realized, the electric wire is conveniently taken out of the breaker main body 1, and the disassembly of the electric wire is facilitated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.