Single-spring quick-acting circuit breaker

Abstract

The single-spring quick-acting circuit breaker comprises a circuit breaker body and a mounting base, the circuit breaker body is fixedly arranged on the upper surface of the mounting base, a plurality of groups of telescopic sleeve rods are arranged on the lower surface of the mounting base, and threaded rods are arranged in the plurality of groups of telescopic sleeve rods in a threaded manner; a moving seat is clamped on the lower surface of the mounting base, a plurality of groups of mounting blocks are arranged on the lower surface of the moving seat, a plurality of groups of universal wheels are arranged on the lower surfaces of the mounting blocks, and a clamping assembly used for clamping the moving seat below the mounting base is arranged below the mounting base. When the circuit breaker body needs to be transported, a plurality of groups of threaded rods extend out of the telescopic sleeve rod, then the movable seat is clamped into the lower surface of the mounting base through the clamping assembly, and then the plurality of groups of threaded rods are retracted into the telescopic sleeve rod, so that the circuit breaker body can be driven to move and transport through the universal wheels; therefore, the transportation and disassembly efficiency of the circuit breaker body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a single-spring fast-acting circuit breaker. Background Art

[0002] A circuit breaker is a switching device that can close, carry, and interrupt current under normal circuit conditions, and can close, carry, and interrupt current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The boundary between high and low voltage is relatively vague, and those above 3kV are generally called high-voltage electrical appliances. Circuit breakers can be used to distribute electrical energy, start asynchronous motors infrequently, and protect power lines and motors. They can automatically cut off the circuit when they suffer serious overloads, short circuits, undervoltages, and other faults. Their function is equivalent to a combination of a fuse-type switch and an over- and under-temperature relay, and generally no component changes are required after disconnecting the fault current.

[0003] The existing single-spring fast-acting circuit breaker takes a long time to transport and disassemble, which is not conducive to improving work efficiency. In addition, the installed single-spring fast-acting circuit breaker is somewhat unstable. Therefore, it is necessary to propose a single-spring fast-acting circuit breaker. Utility Model Content

[0004] The present utility model aims to provide a single-spring fast-acting circuit breaker. The circuit breaker body is fixedly mounted on the upper surface of a mounting base, a plurality of sets of threaded rods are extended from the interior of a telescopic sleeve, a movable seat is then connected to the lower surface of the mounting base via a clamping assembly, and the plurality of sets of threaded rods are then retracted into the interior of the telescopic sleeve. The circuit breaker body can then be moved and transported by means of universal wheels, thereby resolving the problems raised in the above-mentioned background art.

[0005] To achieve the above object, the present invention provides the following technical solution: a single-spring fast-acting circuit breaker, comprising a circuit breaker body and a mounting base, wherein the circuit breaker body is fixedly mounted on the upper surface of the mounting base, and a plurality of groups of telescopic sleeves are disposed on the lower surface of the mounting base, wherein the plurality of groups of telescopic sleeves are each threadedly provided with a threaded rod;

[0006] The lower surface of the mounting base is provided with a movable seat, and the lower surface of the movable seat is provided with several groups of mounting blocks. The lower surfaces of the several groups of mounting blocks are provided with several groups of universal wheels. A clamping component for clamping the movable seat to the bottom of the mounting base is provided below the mounting base.

[0007] Preferably, the clamping assembly includes side plates, positioning blocks and side spring plungers, and the side plates, positioning blocks and side spring plungers are provided in several groups, several groups of the side plates are fixedly installed on the lower surface of the mounting base, several groups of the positioning blocks are fixedly installed on both sides of the movable seat, and several groups of the side spring plungers are symmetrically arranged on both sides of the movable seat.

[0008] Preferably, the lower surface of the mounting base is provided with positioning grooves corresponding to the movable seat and several groups of positioning blocks, and the inner sides of several groups of side plates are provided with side positioning holes corresponding to several groups of side spring plungers.

[0009] Preferably, a connecting rod is clamped on the side of the movable seat, a support plate is fixedly installed on the upper surface of the connecting rod, an upper spring plunger is fixedly installed on the upper surface of the mounting base, and an upper positioning hole corresponding to the upper spring plunger is opened on the side of the support plate close to the mounting base.

[0010] Preferably, a clamping block is fixedly installed on the side of the connecting rod close to the movable seat, and a mounting groove corresponding to the connecting rod and the clamping block is opened on the side of the movable seat close to the connecting rod, and a clamping groove corresponding to the clamping block is opened below the mounting groove.

[0011] Preferably, the bottom ends of the plurality of groups of threaded rods are all fixedly provided with anti-skid bases, and the lower surfaces of the anti-skid bases are provided with a plurality of groups of anti-skid rubber balls.

[0012] Preferably, a push rod is fixedly provided on the upper surface of the connecting rod, and the top end of the push rod is wrapped with an anti-slip pad.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model fixes the mounting base by means of a plurality of sets of threaded rods and an anti-slip base, and the circuit breaker body is fixedly mounted on the upper surface of the mounting base. When the circuit breaker body needs to be transported, the plurality of sets of threaded rods are extended from the inside of the telescopic sleeve, and then the movable seat is connected to the lower surface of the mounting base by means of a clamping assembly, and then the plurality of sets of threaded rods are retracted into the inside of the telescopic sleeve. Then, the circuit breaker body can be driven by the universal wheels for moving and transporting, thereby improving the efficiency of transporting and disassembling the circuit breaker body.

[0015] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is an exploded view of the structure below the installation base of the utility model;

[0018] Figure 3 This is a schematic diagram of the mobile seat of the utility model;

[0019] Figure 4 It is a side view of the mobile seat of the utility model.

[0020] In the figure: 1. Circuit breaker body; 2. Mounting base; 3. Connecting rod; 4. Universal wheel; 5. Telescopic sleeve; 6. Anti-slip base; 7. Moving seat; 8. Upper spring plunger; 9. Side plate; 10. Positioning slot; 11. Threaded rod; 12. Positioning block; 13. Side spring plunger; 14. Mounting block; 15. Side positioning hole; 16. Push rod; 17. Support plate; 18. Upper positioning hole; 19. Snap-in block; 20. Mounting slot; 21. Snap-in slot. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] The utility model provides: a single spring fast-acting circuit breaker, such as Figure 1-4 As shown, the circuit breaker body 1 and the mounting base 2 are included. The circuit breaker body 1 is fixedly arranged on the upper surface of the mounting base 2. The lower surface of the mounting base 2 is provided with a plurality of groups of telescopic sleeves 5. The interiors of the plurality of telescopic sleeves 5 are all threaded with threaded rods 11.

[0023] A movable seat 7 is clamped on the lower surface of the mounting base 2, and several groups of mounting blocks 14 are provided on the lower surface of the movable seat 7. Several groups of universal wheels 4 are provided on the lower surfaces of the several groups of mounting blocks 14. A clamping component for clamping the movable seat 7 to the lower surface of the mounting base 2 is provided below the mounting base 2.

[0024] Preferably, the clamping assembly includes side plates 9, positioning blocks 12 and side spring plungers 13, and the side plates 9, positioning blocks 12 and side spring plungers 13 are each provided in several groups, several groups of side plates 9 are fixedly mounted on the lower surface of the mounting base 2, several groups of positioning blocks 12 are fixedly mounted on both sides of the movable seat 7, several groups of side spring plungers 13 are symmetrically arranged on both sides of the movable seat 7, several groups of side plates 9 are symmetrically arranged on both sides of the lower surface of the mounting base 2, and several groups of side plates 9 do not contact several groups of positioning blocks 12, thereby ensuring that the movable seat 7 can be clamped into the lower surface of the mounting base 2, and at the same time several groups of side spring plungers 13 do not contact several groups of positioning blocks 12, and are located below several groups of positioning blocks 12, thereby ensuring that several groups of side spring plungers 13 can be used normally.

[0025] Furthermore, a positioning groove 10 corresponding to the movable seat 7 and several groups of positioning blocks 12 is opened on the lower surface of the mounting base 2, and side positioning holes 15 corresponding to several groups of side spring plungers 13 are opened on the inner sides of several groups of side panels 9. The movable seat 7 and several groups of positioning blocks 12 are snapped into the positioning groove 10 on the lower surface of the mounting base 2, thereby ensuring that the movable seat 7 will not be displaced in the left and right, front and back directions relative to the mounting base 2 after being snapped in, thereby ensuring the stability of the connection between the mounting base 2 and the movable seat 7. At the same time, the mounting base 2 and the movable seat 7 are snapped into position by snapping several groups of side spring plungers 13 into the corresponding side positioning holes 15, further ensuring the stability of the snap connection between the mounting base 2 and the movable seat 7.

[0026] Furthermore, a connecting rod 3 is provided on the side of the movable seat 7, a support plate 17 is fixedly installed on the upper surface of the connecting rod 3, an upper spring plunger 8 is fixedly provided on the upper surface of the mounting base 2, and an upper positioning hole 18 corresponding to the upper spring plunger 8 is opened on the side of the support plate 17 close to the mounting base 2. The upper spring plunger 8 is inserted into the upper positioning hole 18 on the side of the support plate 17, and the support plate 17 is fixedly connected to the connecting rod 3, thereby positioning the connecting rod 3 to ensure that the upper half of the connecting rod 3 is fixed to the position of the movable seat 7.

[0027] It is worth noting that a clamping block 19 is fixedly installed on the side of the connecting rod 3 close to the movable seat 7, and a mounting groove 20 corresponding to the connecting rod 3 and the clamping block 19 is opened on the side of the movable seat 7 close to the connecting rod 3, and a clamping groove 21 corresponding to the clamping block 19 is opened below the mounting groove 20. First, the clamping block 19 is inserted into the mounting groove 20, and then the connecting rod 3 moves downward and the clamping block 19 is clamped into the clamping groove 21, thereby connecting the lower half of the connecting rod 3 with the movable seat 7, and at this time, the upper spring plunger 8 is clamped into the upper positioning hole 18, thereby fixing the connecting rod 3.

[0028] Specifically, the bottom ends of the several groups of threaded rods 11 are fixed with anti-skid bases 6, and the lower surface of the anti-skid bases 6 is provided with several groups of anti-skid rubber balls. When the circuit breaker body 1 needs to be fixed, the several groups of threaded rods 11 are respectively unscrewed from the inside of the telescopic sleeve 5, and then contact the mounting surface through the anti-skid bases 6. The several groups of anti-skid rubber balls are provided to ensure the stability of the installation of the mounting base 2.

[0029] In addition, a push rod 16 is fixedly provided on the upper surface of the connecting rod 3, and the top end of the push rod 16 is wrapped with an anti-slip pad. The push rod 16 is provided to facilitate the staff to move the circuit breaker body 1, the mounting base 2 and the movable seat 7 as a whole, and the anti-slip pad is wrapped to protect the hands of the staff to prevent the hands of the staff from being cut.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-spring fast-acting circuit breaker, characterized in that: The invention comprises: a circuit breaker body (1) and a mounting base (2), wherein the circuit breaker body (1) is fixedly arranged on the upper surface of the mounting base (2), and a plurality of groups of telescopic sleeve rods (5) are arranged on the lower surface of the mounting base (2), and a threaded rod (11) is threadedly arranged inside each of the plurality of groups of telescopic sleeve rods (5); The lower surface of the mounting base (2) is provided with a movable seat (7) in a clamping manner, the lower surface of the movable seat (7) is provided with a plurality of mounting blocks (14), the lower surfaces of the plurality of mounting blocks (14) are provided with a plurality of universal wheels (4), and a clamping assembly for clamping the movable seat (7) to the lower surface of the mounting base (2) is provided below the mounting base (2).

2. A single-spring fast-acting circuit breaker according to claim 1, characterized in that: The clamping assembly comprises a side plate (9), a positioning block (12) and a side spring plunger (13), wherein the side plate (9), the positioning block (12) and the side spring plunger (13) are provided in a plurality of groups, wherein the plurality of groups of the side plates (9) are fixedly mounted on the lower surface of the mounting base (2), the plurality of groups of the positioning blocks (12) are fixedly mounted on both sides of the movable seat (7), and the plurality of groups of the side spring plungers (13) are symmetrically arranged on both sides of the movable seat (7).

3. A single-spring fast-acting circuit breaker according to claim 2, characterized in that: The lower surface of the mounting base (2) is provided with positioning grooves (10) corresponding to the movable seat (7) and a plurality of groups of positioning blocks (12), and the inner sides of the plurality of groups of side plates (9) are provided with side positioning holes (15) corresponding to a plurality of groups of side spring plungers (13).

4. A single-spring fast-acting circuit breaker according to claim 3, characterized in that: The movable seat (7) is provided with a connecting rod (3) on its side, a support plate (17) is fixedly mounted on the upper surface of the connecting rod (3), an upper spring plunger (8) is fixedly mounted on the upper surface of the mounting base (2), and an upper positioning hole (18) corresponding to the upper spring plunger (8) is provided on a side of the support plate (17) close to the mounting base (2).

5. The single-spring fast-acting circuit breaker according to claim 4, characterized in that: A clamping block (19) is fixedly mounted on one side of the connecting rod (3) close to the movable seat (7); a mounting groove (20) corresponding to the connecting rod (3) and the clamping block (19) is provided on one side of the movable seat (7) close to the connecting rod (3); and a clamping groove (21) corresponding to the clamping block (19) is provided below the mounting groove (20).

6. The single-spring fast-acting circuit breaker according to claim 1, characterized in that: The bottom ends of the plurality of groups of threaded rods (11) are all fixedly provided with anti-skid bases (6), and the lower surfaces of the anti-skid bases (6) are provided with a plurality of groups of anti-skid rubber balls.

7. The single-spring fast-acting circuit breaker according to claim 5, characterized in that: A push rod (16) is fixedly provided on the upper surface of the connecting rod (3), and the top end of the push rod (16) is wrapped with an anti-slip pad.

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