Circuit breaker convenient to mount and dismount

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker convenient to mount and dismount, which comprises a circuit breaker main body, a plurality of wiring jacks are arranged at two ends of the circuit breaker main body, an extrusion pushing assembly is mounted in the circuit breaker main body, and a plurality of suckers are arranged on the back of the circuit breaker main body. The circuit breaker main body can be directly adsorbed on the mounting guide rail of the distribution box through the suckers, and in order to conveniently mount the circuit breaker main body in a complicated internal environment of the distribution box, the suckers can adjust mounting stations on the back surface of the circuit breaker main body up and down and left and right, so that the circuit breaker main body has the characteristic of convenience in mounting and dismounting preliminarily; a screw for extruding a wire by the circuit breaker main body is improved into the extrusion pushing assembly, and after the fastening screw is unscrewed, the pushing head is pushed to the mounting guide rail in the distribution box from the back surface of the circuit breaker main body through a related transmission assembly, so that the suction cup is separated from the mounting guide rail in the distribution box, and further, the circuit breaker has the characteristic of convenience in mounting and dismounting.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker which is easy to install and disassemble. Background Art

[0002] In the generation, transmission and use of electricity, power distribution is an extremely important link. The power distribution system includes transformers and various high and low voltage electrical equipment. Low voltage circuit breakers are a kind of electrical appliances with large usage and wide application. They refer to switching devices that can close, carry and disconnect currents under normal circuit conditions and can close, carry and disconnect currents under abnormal circuit conditions within a specified time. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. When they have serious overloads or short circuits and undervoltage faults, they can automatically cut off the circuit. Their function is equivalent to the combination of fuse switches and over- and under-temperature relays. With the development of the times, circuit breakers have been continuously improved and extended, and have been widely used.

[0003] Most existing circuit breakers are detachably mounted on the mounting rails in the distribution box by bolts. In order to ensure that the circuit breaker is firmly installed, multiple bolts are generally required to be tightened and fixed at the same time;

[0004] Since the bolt structure often causes screws to fall off or the ends of the screws to not align with the reserved holes on the guide rails in the distribution box during the process of tightening and loosening the circuit breaker, and since the installation space in the distribution box where the circuit breaker is installed is small and the number of bolts to be installed is not unique, there is a problem of inconvenience in installation and disassembly. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the utility model provides a circuit breaker that is easy to install and disassemble, which can effectively solve the problem of inconvenient disassembly in the prior art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a circuit breaker which is easy to install and disassemble, comprising a circuit breaker body, wherein both ends of the circuit breaker body are provided with a plurality of wiring jacks, an extrusion and push assembly is installed in the circuit breaker body, the extrusion and push assembly comprises a telescopic block, the telescopic block is telescopically and slidably installed in the circuit breaker body, L-shaped racks are fixedly installed on both sides of the telescopic block, two L-shaped racks are meshed and installed with gears on the sides facing each other, two gears are meshed and installed with U-shaped racks on the sides close to each other, push rods are fixedly installed at the ends of the U-shaped racks, the ends of a plurality of push rods are penetrated and extended to the outside of the circuit breaker body and vertically fixedly installed with push heads, a fixed frame is fixedly installed on the back side of the circuit breaker body, a sliding rod is slidably installed in the fixed frame, a sliding block is slidably installed on the corresponding sliding rod, a rubber suction cup is installed at one end of the sliding block away from the circuit breaker body, a positioning screw is threadedly installed at one end of the sliding block, and the thread of the positioning screw penetrates the sliding block and conflicts with the circuit breaker body.

[0008] Furthermore, a plurality of fastening screws are threadedly installed on one side of the circuit breaker body, and the ends of the plurality of fastening screws are rotatably installed with one end of the corresponding telescopic block.

[0009] Furthermore, the upper cavity top and the lower cavity bottom of the fixed frame are both provided with first sliding grooves, and sliders are fixedly installed at both ends of the sliding rod, and the two sliders are respectively slidably installed in the corresponding first sliding grooves.

[0010] Furthermore, a second sliding groove is formed at one end of the sliding rod away from the circuit breaker body, and third sliding grooves are formed on two opposite inner groove walls of the second sliding groove.

[0011] Furthermore, the slider is adaptively slidably installed in the second slide groove, sliding plates are fixedly installed on both sides of the slider, and the two sliding plates are adaptively slidably installed in the corresponding third slide grooves.

[0012] Furthermore, the distance between the plurality of pushing heads and the circuit breaker body is greater than the distance between the rubber suction cup and the circuit breaker body, and the distance between the rubber suction cup and the circuit breaker body is greater than the thickness of the fixing frame.

[0013] Compared with the known prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] 1. Multiple suction cups are set on the back of the circuit breaker body. The circuit breaker body can be directly adsorbed on the installation rail of the distribution box through the suction cups. In order to facilitate the installation of the circuit breaker body in the complex internal environment of the distribution box, multiple suction cups can adjust the installation position up, down, left and right on the back of the circuit breaker body, which has the initial characteristics of convenient installation and disassembly;

[0015] 2. The screws that squeeze the wires on the circuit breaker body are improved to squeeze and push components. When the wires need to be removed, after loosening the fastening screws, the push head will be pushed from the back of the circuit breaker body to the mounting rail in the distribution box through the relevant transmission components, so that the suction cup is separated from the mounting rail in the distribution box, which further has the characteristics of easy installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of the extrusion and ejection assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the extrusion and ejection assembly of the utility model;

[0020] Figure 4 This is a schematic diagram of the installation structure of the sliding rod of the utility model;

[0021] Figure 5 This is a schematic diagram of the installation structure of the slider of the utility model.

[0022] The numbers in the figure represent: 1. Circuit breaker body; 11. Wiring jack; 12. Fastening screw; 13. Telescopic block; 14. L-shaped rack; 15. Gear; 16. U-shaped rack; 17. Push rod; 18. Push head; 2. Fixed frame; 21. First slide groove; 3. Sliding rod; 31. Second slide groove; 32. Third slide groove; 33. Sliding head; 4. Sliding block; 41. Sliding piece; 42. Rubber suction cup; 43. Positioning screw. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] The utility model is further described below in conjunction with embodiments.

[0025] Example 1

[0026] Reference Figure 1-5 , which is the first embodiment of the utility model, discloses a circuit breaker that is easy to install and disassemble, including a circuit breaker body 1, a plurality of wiring jacks 11 are provided at both ends of the circuit breaker body 1, an extrusion and push assembly is installed in the circuit breaker body 1, and the extrusion and push assembly includes a telescopic block 13, the telescopic block 13 is telescopically and slidably installed in the circuit breaker body 1, L-shaped racks 14 are fixedly installed on both sides of the telescopic block 13, and the two L-shaped racks 14 are meshed and installed on the opposite sides of the gear 15, and the gear 15 is limited and rotated in the circuit breaker body 1, and the two gears 15 are meshed and installed on the side close to each other. U-shaped racks 16 are installed at the ends of the U-shaped racks 16. Rod 17, the ends of the plurality of push rods 17 all extend through and extend outside the circuit breaker body 1 and are vertically fixedly installed with a push head 18, the fixing frame 2 is fixedly installed on the back of the circuit breaker body 1, the sliding rod 3 is slidably installed in the fixing frame 2, the sliding block 4 is slidably installed on the corresponding sliding rod 3, and a rubber suction cup 42 is installed at one end of the sliding block 4 away from the circuit breaker body 1, and a positioning screw 43 is threadedly installed at one end of the sliding block 4, the positioning screw 43 thread penetrates the sliding block 4 and conflicts with the circuit breaker body 1, and by tightening the positioning screw 43, the slider 4, the sliding rod 3 and the circuit breaker body 1 can be quickly fixed at the same time, that is, the rubber suction cup 42 is quickly fixed.

[0027] Example 2

[0028] Reference Figure 1-5, which is the second embodiment of the utility model. The embodiment is different from the first embodiment in that: a plurality of fastening screws 12 are threadedly installed on one side of the circuit breaker body 1, and the ends of the plurality of fastening screws 12 are rotatably installed with one end of the corresponding telescopic block 13. A limit block is installed at the end of the fastening screw 12, and a limit cavity is provided at one end of the telescopic block 13 close to the fastening screw 12. The limit block is rotatably installed in the limit cavity, so that the telescopic block 13 and the fastening screw 12 are rotatably installed. A first slide groove 21 is provided on the upper cavity top and the lower cavity bottom of the fixed frame 2, and sliders 33 are fixedly installed at both ends of the sliding rod 3. The two sliders 33 are respectively slidably installed in the corresponding first slide grooves 21. A second slide groove 31 is provided at the end of the sliding rod 3 away from the circuit breaker body 1, and two opposite inner groove walls of the second slide groove 31 are provided with a third slide groove 32. The slider 4 is adaptively slidably installed in the second slide groove 31, and the two sliders 4 are The sliding pieces 41 are fixedly installed on both sides, and the two sliding pieces 41 are respectively slidably installed in the corresponding third sliding grooves 32. The design purpose of the sliding piece 41 is to make the slider 4 only slide up and down along the direction of the corresponding sliding rod 3 to prevent the slider 4 from falling off from the second sliding groove 31 of the sliding rod 3, thereby reducing the disassembly efficiency. The distance between the several pushing heads 18 and the circuit breaker body 1 is greater than the distance between the rubber suction cup 42 and the circuit breaker body 1. Because the pushing head 18 is telescopically slidable, the distance between the pushing head 18 and the circuit breaker body 1 here is the maximum distance between the pushing head 18 and the circuit breaker body 1. The distance between the rubber suction cup 42 and the circuit breaker body 1 is greater than the thickness of the fixed frame 2 to ensure that when the circuit breaker body 1 is close to the installation rail in the distribution box, the rubber suction cup 42 will first contact the fixed frame 2 and the installation rail to achieve adsorption and fixation between the circuit breaker body 1 and the installation rail.

[0029] The remaining structures are the same as those of Example 1.

[0030] First, insert the wires into the corresponding wiring jacks 11 respectively, and then tighten the corresponding fastening screws 12 so that the corresponding telescopic blocks 13 are pressed against the wires, so that the wires are tightly connected to the circuit breaker body 1 and are not easy to loosen and fall off. At the same time, the telescopic blocks 13 will drive the L-shaped racks 14 on both sides to slide, thereby driving the corresponding gears 15 to engage and rotate. The rotation of the two gears 15 will eventually drive the U-shaped racks 16 to slide in the opposite direction, thereby retracting the push rod 17 and the push head 18. At this time, the distance between the push head 18 and the circuit breaker body 1 is less than the thickness of the fixing frame 2, and will not affect the adsorption between the rubber suction cup 42 and the mounting rail in the distribution box.

[0031] Secondly, according to the installation environment in the distribution box, the specific position of each rubber suction cup 42 is adjusted respectively. The specific method is as follows: loosen the positioning screw 43 so that the corresponding slider 4 can slide up and down on the corresponding sliding rod 3 to adjust the longitudinal position. At the same time, the sliding rod 3 can also adjust the lateral position left and right in the fixing frame 2 because there is no squeezing and interference of the positioning screw 43. Finally, when the position of the rubber suction cup 42 is adjusted, tighten the positioning screw 43 so that the end thread of the positioning screw 43 passes through the corresponding slider 4 and squeezes and interferes with the back of the circuit breaker body 1. At this time, the slider 4 is forced to be limited and fixed on the sliding rod 3, and the sliding rod 3 is forced to be limited and fixed on the circuit breaker body 1, so that the locking and fixing of the rubber suction cup 42 is realized, and the circuit breaker body 1 is directly brought close to the installation guide rail in the distribution box, so that multiple rubber suction cups 42 are squeezed and adsorbed and fixed on the installation guide rail, completing the rapid fixation between the circuit breaker body 1 and the installation guide rail of the distribution box;

[0032] Finally, when the circuit breaker body 1 needs to be disassembled, several fastening screws 12 are loosened respectively, so that the corresponding telescopic blocks 13 no longer squeeze and interfere with the wires, making it convenient to pull the wires out of the corresponding wiring jacks 11. At the same time, the telescopic blocks 13 will drive the L-shaped racks 14 on both sides to slide in the opposite direction, and then drive the corresponding gears 15 to rotate in the opposite direction, and finally push the push rod 17 and the push head 18 out, and squeeze and interfere with the mounting guide rail, so that the rubber suction cup 42 is separated from the mounting guide rail. At this time, the circuit breaker body 1 can be directly removed, which has the characteristic of easy disassembly.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein by equivalents. These modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circuit breaker that is easy to install and disassemble, comprising a circuit breaker body (1), wherein both ends of the circuit breaker body (1) are provided with a plurality of wiring jacks (11), It is characterized in that Also includes: A squeezing and pushing assembly is installed in a circuit breaker body (1), the squeezing and pushing assembly comprising a telescopic block (13), the telescopic block (13) being telescopically and slidably installed in the circuit breaker body (1), L-shaped racks (14) being fixedly installed on both sides of the telescopic block (13), gears (15) being meshed and installed on the two L-shaped racks (14) facing each other, U-shaped racks (16) being meshed and installed on the two gears (15) close to each other, a pushing rod (17) being fixedly installed at the end of the U-shaped rack (16), and pushing heads (18) being fixedly installed at the ends of a plurality of pushing rods (17) extending through and extending outside the circuit breaker body (1) and vertically fixedly installed on the pushing heads; A fixing frame (2) fixedly mounted on the back of the circuit breaker body (1); A sliding rod (3) is slidably mounted in the fixed frame (2); A slider (4) is slidably mounted on a corresponding sliding rod (3), and a rubber suction cup (42) is mounted on one end of the slider (4) away from the circuit breaker body (1). A positioning screw (43) is threadedly mounted on one end of the slider (4), and the positioning screw (43) is threadedly penetrated through the slider (4) and abuts against the circuit breaker body (1).

2. A circuit breaker that is easy to install and disassemble according to claim 1, It is characterized in that A plurality of fastening screws (12) are threadedly mounted on one side of the circuit breaker body (1), and the ends of the plurality of fastening screws (12) are rotatably mounted on one end of a corresponding telescopic block (13).

3. A circuit breaker that is easy to install and disassemble according to claim 2, It is characterized in that The upper cavity top and the lower cavity bottom of the fixed frame (2) are both provided with a first slide groove (21), and sliders (33) are fixedly installed at both ends of the sliding rod (3), and the two sliders (33) are respectively slidably installed in the corresponding first slide grooves (21).

4. A circuit breaker that is easy to install and disassemble according to claim 3, It is characterized in that A second sliding groove (31) is provided at one end of the sliding rod (3) away from the circuit breaker body (1), and third sliding grooves (32) are provided on two opposite inner groove walls of the second sliding groove (31).

5. A circuit breaker that is easy to install and disassemble according to claim 4, It is characterized in that The slider (4) is slidably mounted in the second slide groove (31) in a matching manner, and slide plates (41) are fixedly mounted on both sides of the slider (4), and the two slide plates (41) are respectively slidably mounted in the corresponding third slide grooves (32).

6. A circuit breaker that is easy to install and disassemble according to claim 5, It is characterized in that The distance between the plurality of pushing heads (18) and the circuit breaker body (1) is greater than the distance between the rubber suction cup (42) and the circuit breaker body (1), and the distance between the rubber suction cup (42) and the circuit breaker body (1) is greater than the thickness of the fixing frame (2).

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