A precise tripping molded case circuit breaker

Abstract

The utility model relates to the technical field of molded case circuit breaker, concretely is a kind of molded case circuit breaker of accurate tripping, including molded case circuit breaker main part, the periphery of molded case circuit breaker main part is uniformly connected with mounting seat, recess is established in the side of mounting seat, the inside of recess is connected with L type seat, the side of L type seat is slidably connected with array distribution telescopic link, the side of telescopic link is fixedly connected with protective baffle, the side of protective baffle is fixedly connected with rubber pad;First connecting spring is connected between protective baffle and L type seat in array, the both ends of mounting seat are equipped with the L type groove that passes through, the both ends of L type seat are equipped with storage groove, the utility model is automatically connected with the structure of elastic L type block and L type groove, the quick installation of L type seat and stable fixed position are realized, and the elastic protective baffle and rubber pad of periphery are simultaneously utilized, effectively absorb external impact, avoid molded case circuit breaker to be damaged due to collision, improve the protective performance and service life of molded case circuit breaker.

Description

Technical Field

[0001] This utility model relates to the field of molded case circuit breaker technology, specifically a molded case circuit breaker with precise tripping. Background Technology

[0002] Molded case circuit breakers are an important power distribution protection device. They are compact in size and stable in performance. They are specially installed in low-voltage power supply circuits and protect equipment safety by quickly interrupting power in critical situations. The tripping mechanism in the molded case circuit breaker is the core component that enables the circuit breaker to trip automatically.

[0003] In actual use, the outer shell of a molded case circuit breaker is usually made of plastic material. Such plastic shells are relatively fragile and have poor strength. If the molded case circuit breaker is accidentally slipped, it will be directly damaged by impact, which will affect the service life of the molded case circuit breaker. Utility Model Content

[0004] The purpose of this invention is to provide a molded case circuit breaker with precise tripping capability to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A precision-tripping molded case circuit breaker includes a molded case circuit breaker body. Mounting seats are fixedly connected to all four sides of the body. A groove is formed on one side of each mounting seat, and an L-shaped seat is engaged inside the groove. An array of telescopic rods is slidably connected to one side of the L-shaped seat. A protective baffle is fixedly connected to one side of each telescopic rod, and a rubber pad is fixedly connected to one side of the protective baffle. A first connecting spring is connected in an array between the protective baffle and the L-shaped seat. Through L-shaped slots are formed at both ends of the mounting seat, and storage slots are formed at both ends of the L-shaped seat. Two guide rods are slidably connected inside the storage slots. An L-shaped block is fixedly connected to one side of each guide rod. Two second connecting springs are fixedly connected to the L-shaped block and the storage slot. One side of the L-shaped block is engaged inside the L-shaped slot.

[0007] Preferably, the molded case circuit breaker body has two tripping brackets inside, and two L-shaped mounting plates are slidably connected to the lower side of each tripping bracket. One side of each of the four L-shaped mounting plates is threaded with a first bolt, and the lower side of the first bolt passes through the L-shaped mounting plate and extends into the interior of the molded case circuit breaker body.

[0008] Preferably, both ends of the two trip brackets are threaded with a second bolt, one side of which penetrates the trip bracket and extends into the interior of the trip bracket.

[0009] Preferably, both ends of the two release brackets are slidably engaged with L-shaped insert plates, and one end of each of the four L-shaped mounting plates is provided with an array of through slots, with one side of the L-shaped insert plate being engaged with the L-shaped insert plate.

[0010] Preferably, one side of the tripping bracket is fixedly connected to two first horizontal plates, and the other side of the tripping bracket is fixedly connected to two second horizontal plates, with an extension plate fixedly connected to one side of each of the two first horizontal plates.

[0011] Preferably, a groove is provided on one side of each of the two second horizontal plates, and one side of the extension plate is slidably placed inside the groove. A stop block is fixedly connected to one end of each of the two extension plates.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model achieves rapid installation and stable positioning of the L-shaped seat through the automatic snap-fit ​​structure of the elastic L-shaped block and L-shaped groove. At the same time, the elastic protective baffles and rubber pads around the perimeter effectively absorb external impacts, prevent the molded case circuit breaker from being damaged by collisions, and improve the protection performance and service life of the molded case circuit breaker.

[0014] 2. This utility model adopts an L-shaped mounting plate, sliding groove and bolt adjustment design for the trip bracket, which supports flexible adjustment of height and horizontal position, can adapt to molded case circuit breakers of different sizes, enhances installation applicability, reduces modification costs and improves installation efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a utility model Figure 1 A schematic diagram of the middle guide rod, L-shaped block, and second connecting spring;

[0018] Figure 3 This is a utility model Figure 2 A schematic diagram of the structure of the telescopic rod, the protective baffle, and the first connecting spring;

[0019] Figure 4 This is a utility model Figure 1 Installation diagram of the L-shaped mounting plate and trip bracket;

[0020] Figure 5 This is a utility model Figure 1 Installation diagram of the middle slide and extension plate;

[0021] The attached figures are labeled as follows:

[0022] 1. Molded case circuit breaker body; 2. Mounting base; 3. Groove; 4. L-shaped base; 5. Telescopic rod; 6. Protective baffle; 7. Rubber pad; 8. First connecting spring; 9. Guide rod; 10. L-shaped block; 11. Second connecting spring; 12. L-shaped groove; 13. L-shaped mounting plate; 14. Tripping bracket; 15. First bolt; 16. Second bolt; 17. Slot; 18. L-shaped insert plate; 19. Stop block; 20. First horizontal plate; 21. Second horizontal plate; 22. Slide groove; 23. Extension plate; 66. Storage groove. Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 5 As shown, a molded case circuit breaker with precise tripping includes a molded case circuit breaker body 1. Mounting bases 2 are fixedly connected to all four sides of the molded case circuit breaker body 1. A groove 3 is provided on one side of the mounting base 2. An L-shaped seat 4 is snapped into the groove 3. An array of telescopic rods 5 are slidably connected to one side of the L-shaped seat 4. A protective baffle 6 is fixedly connected to one side of the telescopic rod 5. A rubber pad 7 is fixedly connected to one side of the protective baffle 6.

[0025] A first connecting spring 8 is arrayed between the protective baffle 6 and the L-shaped seat 4. Both ends of the mounting base 2 are provided with through L-shaped grooves 12, and both ends of the L-shaped seat 4 are provided with storage grooves 66. Two guide rods 9 are slidably connected inside the storage grooves 66. An L-shaped block 10 is fixedly connected to one side of the two guide rods 9. Two second connecting springs 11 are fixedly connected to the L-shaped block 10 and the storage groove 66. One side of the L-shaped block 10 is snapped into the inside of the L-shaped groove 12. By pressing the two elastic L-shaped blocks 10 from the L-shaped groove 12 of the L-shaped block 10, the two L-shaped blocks 10 can be retracted to release the restriction on the L-shaped seat 4, so that the L-shaped seat 4 can be easily disassembled and the elastic protective baffle 6 can be removed. In this way, the elastic protective baffle 6 can be reused, saving costs.

[0026] The molded case circuit breaker body 1 has two tripping brackets 14 inside. The lower side of each tripping bracket 14 is slidably connected to two L-shaped mounting plates 13. One side of each of the four L-shaped mounting plates 13 is threaded with a first bolt 15. The lower side of the first bolt 15 passes through the L-shaped mounting plate 13 and extends into the interior of the molded case circuit breaker body 1. The first bolt 15 can be used to fix the L-shaped mounting plate 13 inside the molded case circuit breaker body 1, so that the tripping brackets 14 can be fixed. In this way, the tripping mechanism of the molded case circuit breaker can accurately realize the tripping operation.

[0027] Both ends of the two trip brackets 14 are threaded with second bolts 16, one side of which penetrates the trip bracket 14 and extends into the interior of the trip bracket 14.

[0028] Both ends of the two release brackets 14 are slidably engaged with L-shaped insert plates 18, and one end of each of the four L-shaped mounting plates 13 is provided with a through slot 17. One side of the L-shaped insert plate 18 is engaged with the L-shaped insert plate 18.

[0029] Two first horizontal plates 20 are fixedly connected to one side of the tripping bracket 14, and two second horizontal plates 21 are fixedly connected to one side of the other tripping bracket 14. An extension plate 23 is fixedly connected to one side of each of the two first horizontal plates 20.

[0030] Each of the two second horizontal plates 21 has a groove 22 on one side. One side of the extension plate 23 is slidably placed inside the groove 22. One end of each of the two extension plates 23 is fixedly connected to a stop block 19. The stop block 19 can be used to block the movement trajectory of the extension plate 23, so that the extension plate 23 is always in the groove 22.

[0031] The working principle of the precision tripping molded case circuit breaker provided by this utility model is as follows:

[0032] By pressing the two elastic L-shaped blocks 10 at the L-shaped seat 4, the two L-shaped blocks 10 can retract into the two storage slots 66. Then, the L-shaped seat 4 is placed in the groove 3 of the mounting seat 2. In this way, the L-shaped seat 4 can be initially engaged with the groove 3. When the L-shaped seat 4 is installed in place, the restriction on the two L-shaped blocks 10 will be released, allowing the two elastic L-shaped blocks 10 to automatically extend and engage with the two L-shaped slots 12. In this way, the two L-shaped slots 12 can limit and fix the L-shaped seat 4. Then, the four L-shaped seats 4 can be sequentially engaged and installed in the four mounting seats 2, so that the four elastic protective baffles 6 can be fixed around the body 1 of the molded case circuit breaker, increasing the buffer strength of the body 1 of the molded case circuit breaker. At the same time, with the rubber pads 7 on the protective baffles 6, the molded case circuit breaker can be further buffered and protected, avoiding direct collision and damage to the molded case circuit breaker, and improving the service life of the molded case circuit breaker.

[0033] The four L-shaped mounting plates 13 at the trip bracket 14 can be moved up and down. Then, the second bolts 16 are tightened to press and position the L-shaped mounting plates 13. The L-shaped insert plate 18 is then inserted into the slot 17 to further fix the L-shaped mounting plates 13, so as to adjust the height of the trip bracket 14. Then, the extension plate 23 can be moved and adjusted in the slide groove 22 of the second horizontal plate 21 to adjust the size and position of the trip bracket 14 to adapt to different molded case circuit breakers, improve the applicability of the trip bracket 14 during installation in the molded case circuit breaker, and save costs.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A precision-tripping molded case circuit breaker, comprising a molded case circuit breaker body (1), characterized in that, The main body (1) of the molded case circuit breaker is fixedly connected to a mounting base (2) on all four sides. A groove (3) is provided on one side of the mounting base (2). An L-shaped seat (4) is snapped into the inside of the groove (3). An array of telescopic rods (5) are slidably connected to one side of the L-shaped seat (4). A protective baffle (6) is fixedly connected to one side of the telescopic rod (5). A rubber pad (7) is fixedly connected to one side of the protective baffle (6). The protective baffle (6) and the L-shaped seat (4) are connected in an array with a first connecting spring (8). Both ends of the mounting base (2) are provided with through L-shaped grooves (12). Both ends of the L-shaped seat (4) are provided with storage grooves (66). Two guide rods (9) are slidably connected inside the storage groove (66). An L-shaped block (10) is fixedly connected to one side of the two guide rods (9). Two second connecting springs (11) are fixedly connected to the L-shaped block (10) and the storage groove (66). One side of the L-shaped block (10) is snapped into the inside of the L-shaped groove (12).

2. The molded case circuit breaker with precise tripping according to claim 1, characterized in that, The molded case circuit breaker body (1) is provided with two tripping brackets (14) inside. The lower side of each tripping bracket (14) is slidably connected to two L-shaped mounting plates (13). One side of each of the four L-shaped mounting plates (13) is threaded with a first bolt (15). The lower side of the first bolt (15) passes through the L-shaped mounting plate (13) and extends into the interior of the molded case circuit breaker body (1).

3. A molded case circuit breaker with precise tripping according to claim 2, characterized in that, Both ends of the two trip brackets (14) are threaded with a second bolt (16), one side of which penetrates the trip bracket (14) and extends into the interior of the trip bracket (14).

4. A molded case circuit breaker with precise tripping according to claim 3, characterized in that, Both ends of the two release brackets (14) are slidably engaged with L-shaped insert plates (18), and one end of each of the four L-shaped mounting plates (13) is provided with a through slot (17), and one side of the L-shaped insert plate (18) is engaged with the L-shaped insert plate (18).

5. A molded case circuit breaker with precise tripping according to claim 2, characterized in that, Two first horizontal plates (20) are fixedly connected to one side of the release bracket (14), and two second horizontal plates (21) are fixedly connected to one side of the other release bracket (14). An extension plate (23) is fixedly connected to one side of each of the two first horizontal plates (20).

6. A molded case circuit breaker with precise tripping according to claim 5, characterized in that, Each of the two second horizontal plates (21) has a groove (22) on one side, and one side of the extension plate (23) is slidably placed inside the groove (22). Each of the two extension plates (23) has a stop block (19) fixedly connected to one end.

Images