A 10KV indoor circuit breaker device

Abstract

The present invention discloses a 10KV indoor circuit breaker device. By arranging a sliding circuit breaker in a switch cabinet provided with a terminal block, and by arranging a crossbar at the bottom of the circuit breaker and a screw on the crossbar, the rotation of a handle drives the rotation of the screw, causing the circuit breaker to move forward and backward on the screw. And relying on a separation component to quickly separate a moving block that has moved to the end of the screw from a screw sleeve, so that a reset component pulls the circuit breaker to quickly reset, causing the plug connector on the circuit breaker to disengage from the busbar contact and the outgoing line contact, and in case of an emergency, the faulty circuit can be quickly cut off, preventing the expansion of the accident and ensuring safe operation. At the same time, by arranging a reset connection component, after the moving block and the screw sleeve are separated, the screw sleeve can be rotated back to its original position by rotating the screw to realize reconnection with the moving block, so as to facilitate rotating the screw again to push the circuit breaker forward.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, in particular to a 10KV indoor circuit breaker device. Background Art

[0002] A circuit breaker is a device that cuts off a faulty circuit, prevents accidents from escalating, and ensures safe operation of the line. Existing 10KV indoor circuit breakers are generally used in the trolley compartment of a switchgear. The circuit is connected by placing the circuit breaker in the trolley compartment and pushing the circuit breaker so that its plug engages with the busbar contacts and outgoing line contacts. Because the plugs of circuit breakers in the prior art are manually cranked to connect and disconnect from the busbar contacts and outgoing line contacts, the plugs are slow to connect and disconnect, making it impossible to quickly disconnect. Therefore, it is necessary to design a circuit breaker device with a quick-disconnect function that allows the plugs to quickly disconnect from the busbar contacts and outgoing line contacts in the event of an emergency. Summary of the invention

[0003] The present invention provides a 10KV indoor circuit breaker device, aiming to solve the problems existing in the above-mentioned 10KV indoor circuit breaker device.

[0004] To achieve the above-mentioned object, the present invention provides a 10KV indoor circuit breaker device, comprising a circuit breaker with rollers on both sides, a crossbar, a screw, a reset assembly, a separation assembly and a reset connection assembly, wherein the crossbar is provided on one side of the circuit breaker, the screw is rotatably provided on the crossbar, a movable block is fixedly provided on the lower end surface of the circuit breaker, a screw sleeve is detachably provided on the movable block, and the screw sleeve is threadedly connected to the screw; an elastic push rod is slidably provided in the screw rod, and the reset assembly and the reset connection assembly are connected to the crossbar; the screw rotates to drive the circuit breaker to move on the screw rod until the screw sleeve abuts against the separation assembly, and the elastic push rod is pressed to cause the conical push block at the end of the elastic push rod to push the separation assembly to separate the screw sleeve from the movable block, thereby causing the circuit breaker to return to its original position under the action of the reset assembly.

[0005] Furthermore, the movable block is detachably connected to the threaded sleeve via an elastic connection assembly. The elastic connection assembly includes a first elastic connection assembly and a second elastic connection assembly. The first elastic connection assembly includes a first locking rod and a first spring slidably mounted on one end of the movable block. The first spring is mounted on the first locking rod and connected to the movable block. The end of the first locking rod is provided with a first circular push block. The second elastic connection assembly includes a second locking rod and a second spring mounted on the other end of the movable block. The second spring is mounted on the second locking rod and connected to the movable block. The end of the second locking rod is provided with a second circular push block. The end of the second locking rod is provided with an inclined section.

[0006] Furthermore, the reset assembly includes a first limiting rod, a reset spring and a slider. The first limiting rod is arranged on both sides of the cross piece, the slider is fixedly connected to the bottom surface of the circuit breaker, the slider is slidably sleeved on the first limiting rod, the reset spring is arranged on the first limiting rod, and the two ends of the reset spring are respectively connected to the cross piece and the slider; the end of the first limiting rod is connected to the cross plate, and the separation assembly is arranged on the cross plate.

[0007] Furthermore, the separation component includes an "H"-shaped rod slidably arranged on the horizontal plate, a square push block, a second limit rod and a third spring, the square push block is connected to the "H"-shaped rod, the second limit rod is arranged on the horizontal plate, the third spring is sleeved on the second limit rod, and the second limit rod is slidably connected to the square push block; a first wedge block is provided at the end of the square push block, and the first wedge block abuts against the conical push block; the "H"-shaped rod is inserted into the first elastic connection component and the second elastic connection component, so that the elastic push rod can push the conical push block to push the first wedge block to drive the square push block to move, so that the "H"-shaped rod can move the first circular push block and the second circular push block to unlock the screw sleeve.

[0008] Furthermore, the reset connection assembly includes a stopper and a second wedge-shaped block, the stopper being connected to the crossbar via a connecting rod, the second wedge-shaped block being disposed on the stopper, the first circular push block being connected to the second wedge-shaped block to retract the end of the first locking rod into the moving block, and a third limiting rod being connected to the crossbar and the stopper, the threaded sleeve being slidably mounted on the third limiting rod.

[0009] Furthermore, the crossbar is provided with a rotation groove for rotating the screw, and a square block is protruding from the end of the screw, which is located in the rotation groove. A handle is also included, and a push rod is provided on the handle for pressing, and the end of the elastic push rod is located in the square block. The handle is inserted into the rotation groove to align the push rod with the elastic push rod.

[0010] Compared with the existing technology, it has the following beneficial effects:

[0011] This application proposes a 10KV indoor circuit breaker device. By setting a horizontal bar at the bottom of the circuit breaker and setting a screw on the horizontal bar, the circuit breaker can be moved forward and backward on the screw by rotating the handle, and the separation component is used to quickly separate the moving block that moves to the end of the screw from the screw sleeve, so that the reset component pulls the circuit breaker to quickly reset, so that the plug connector on the circuit breaker is separated from the busbar contact and the outgoing line contact. In an emergency, the fault circuit can be quickly cut off to prevent the accident from expanding and ensure safe operation. At the same time, by setting a reset connection component, after the moving block and the screw sleeve are separated, the screw sleeve can be turned back to its original position to achieve reconnection with the moving block, so that the screw can be turned again to push the circuit breaker forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only the preferred embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0013] Figure 1 It is a schematic diagram of the bottom of a 10KV indoor circuit breaker device of the present application;

[0014] Figure 2 It is a partial enlarged schematic diagram A of the present application;

[0015] Figure 3 It is a partial enlarged schematic diagram B of the present application;

[0016] Figure 4 It is a schematic diagram of a 10KV indoor circuit breaker device of the present application;

[0017] Figure 5 It is a partial enlarged schematic diagram C of the present application;

[0018] Figure 6 It is a schematic diagram of the separation component of the present application;

[0019] Figure 7 It is a schematic diagram of the reset connection component of the present application.

[0020] Reference numerals: 1 - circuit breaker; 2 - crossbar; 3 - screw; 4 - moving block; 5 - nut sleeve; 6 - elastic push rod; 7 - conical push block; 8 - rotating groove; 9 - square block; 10 - third limiting rod; 11 - switch cabinet; 12 - guide rail; 21 - first locking rod; 22 - first spring; 23 - first circular push block; 31 - second locking rod; 32 - second spring; 33 - second circular push block; 41 - first limiting rod; 42 - reset spring; 43 - slider; 44 - cross plate; 51 - "H"-shaped rod; 52 - square push block; 54 - second limiting rod; 55 - third spring; 56 - first wedge block; 61 - stop block; 62 - second wedge block. Detailed implementation manners

[0021] To more easily understand the structure of the present invention and the functional features and advantages that can be achieved, the following will describe the preferred embodiments of the present invention in detail in conjunction with the drawings as follows:

[0022] Embodiment 1:

[0023] Such as Figures 1 to 7As shown in the figure, the present invention provides a 10KV indoor circuit breaker device, which includes a circuit breaker 1 with rollers on both sides, a crossbar 2, a screw rod 3, a reset component, a separation component, and a reset connection component. Among them, the crossbar 2 is arranged on one side of the bottom of the circuit breaker 1, the screw rod 3 is rotatably arranged on the crossbar 2 through a bearing, a moving block 4 is fixedly arranged on the lower end surface of the circuit breaker 1, a screw sleeve 5 is detachably arranged on the moving block 4, and the screw sleeve 5 is threadedly connected with the screw rod 3; an elastic push rod 6 is slidably arranged in the screw rod 3, and the reset component and the reset connection component are connected to the crossbar 2. The rotation of the screw rod 3 drives the circuit breaker 1 to move on the screw rod 3 until the screw sleeve 5 abuts against the separation component, and the elastic push rod 6 is pressed to make the conical push block 7 at the end of the elastic push rod 6 push the separation component to make the screw sleeve 5 disengage from the moving block 4, so that the circuit breaker 1 returns under the action of the reset component.

[0024] Specifically, the moving block 4 is detachably connected to the screw sleeve 5 through an elastic connection component. The elastic connection component includes a first elastic connection component and a second elastic connection component. The first elastic connection component includes a first locking rod 21 slidably arranged at one end of the moving block 4 and a first spring 22. The first spring 22 is sleeved on the first locking rod 21 and connected to the moving block 4, and a first circular push block 23 is arranged at the end of the first locking rod 21. The second elastic connection component includes a second locking rod 31 arranged at the other end of the moving block 4 and a second spring 32. The second spring 32 is sleeved on the second locking rod 31 and connected to the moving block 4, and a second circular push block 33 is arranged at the end of the second locking rod 31; an inclined section is arranged at the end of the second locking rod 31.

[0025] Embodiment 2:

[0026] As Figures 1 to 7As shown in the figure, in combination with the technical solution of Embodiment 1, in this embodiment, the reset assembly includes a first limiting rod 41, a reset spring 42 and a slider 43. The first limiting rod 41 is arranged on both sides of the crossbar 2. The slider 43 is fixedly connected to the bottom surface of the circuit breaker 1. The slider 43 is slidably sleeved on the first limiting rod 41. The reset spring 42 is arranged on the first limiting rod 41. Both ends of the reset spring 42 are respectively connected to the crossbar 2 and the slider 43. When the separation assembly pushes the first circular push block 23 and the second circular push block 33 to separate the moving block 4 from the screw sleeve 5, the reset spring 42 pulls the slider 43 at the bottom of the circuit breaker 1 to contract, so as to quickly return the circuit breaker 1 to its original position. Further, a buffer damper is provided on the slider 43 to prevent the circuit breaker 1 from rebounding. In addition, an elastic locking mechanism can also be provided to lock the returned slider 43. Specifically, the elastic locking mechanism can be a magnetic lock that extends when energized. When the reset spring 42 drives the circuit breaker 1 to return to its original position, the slider 43 is inserted into the insertion rod on the magnetic lock. The insertion method is that the insertion rod is provided with a single-sided inclined surface, so that it can be automatically inserted. When it is necessary to separate the slider 43 from the magnetic lock, the iron rod wound with the wire is magnetized by energizing, so as to attract the permanent magnet connecting the insertion rod to perform a contraction movement to separate from the slider 43. A cross plate 44 is connected to the end of the first limiting rod 41, and the separation assembly is arranged on the cross plate 44.

[0027] Specifically, the separation assembly includes an "H"-shaped rod 51 slidably arranged on the cross plate 44, a square push block 52, a second limiting rod 54 and a third spring 55. The square push block 52 is connected to the "H"-shaped rod 51. A strip-shaped limiting groove is provided on the cross plate 44, and the "H"-shaped rod 51 is slidably located in the strip-shaped limiting groove. The second limiting rod 54 is fixedly arranged on the cross plate 44. The third spring 55 is sleeved on the second limiting rod 54. The second limiting rod 54 is slidably connected to the square push block 52. A first wedge block 56 is provided at the end of the square push block 52, and the first wedge block 56 abuts against the conical push block 7. The "H"-shaped rod 51 is inserted into the first elastic connection assembly and the second elastic connection assembly, so that the elastic push rod 6 can push the conical push block 7 to extend out of the end of the screw rod 3 by pressing, so as to push the first wedge block 56 to drive the square push block 52 to move towards both ends, so that the "H"-shaped rod 51 can toggle the first circular push block 23 and the second circular push block 33 to drive the first locking rod 21 and the second locking rod 31 to disengage from the screw sleeve 5, so as to realize the unlocking of the screw sleeve 5 and the moving block 4. At this time, under the energy storage effect of the reset assembly, the circuit breaker 1 quickly returns to the crossbar 2 on the moving guide rail 12 in the handcart chamber of the switch cabinet 11 through the roller. The crossbar 2 is located at one end of the moving track. After closing the handcart chamber door, the crossbar 2 can be limited between the front end of the moving track and the cabinet door, and the rotating part can be inserted through the round hole on the handcart chamber door to be connected to the screw rod 3. Further, the elastic force of the elastic push rod 6 is realized by relying on two third springs 55. At the same time, in order to improve its elastic force, a spring sleeved on the elastic push rod 6 can be arranged in the screw rod 3.

[0028] Specifically, the reset connection assembly includes a stop block 61 and a second wedge block 62. The stop block 61 is connected to the crossbar 2 through a connecting rod. The second wedge block 62 is arranged on the stop block 61. The first circular push block 23 is in contact with the second wedge block 62 to enable the end of the first lock rod 21 to be received into the moving block 4. When the screw 3 rotates to rotate the screw sleeve 5 back to its original position, the screw sleeve 5 enables the jack inserted with the first lock rod 21 to pass smoothly through the inclined section on the second lock rod 31. When the jack inserted with the first lock rod 21 is inserted into the second lock rod 31, at this time, rotate the screw 3 to push the screw sleeve 5 forward to gradually separate the first circular push block 23 from the second wedge block 62, so that the first lock rod 21 gradually enters the jack to complete the connection between the screw sleeve 5 and the moving block 4. It further includes a third limiting rod 10. The third limiting rod 10 is connected to the cross plate 44 and the stop block 61. The screw sleeve 5 is slidably sleeved on the third limiting rod 10, so that the screw sleeve 5 separated from the moving block 4 moves linearly under the rotation of the screw 3 without rotating with the screw 3 by arranging the third limiting rod 10.

[0029] Embodiment 3:

[0030] As Figure 5 shown, in combination with the technical solution of Embodiment 2, in this embodiment, a rotation groove 8 for rotating the screw 3 is provided on the crossbar 2. A square block 9 protrudes from the end of the screw 3, and the square block 9 is located in the rotation groove 8. It further includes a handle (not shown). A push rod is pressed on the handle. The end of the elastic push rod 6 is located in the square block 9. The handle is inserted into the rotation groove 8 to align the push rod with the elastic push rod 6. When it is necessary to quickly reset the circuit breaker 1 to separate the plug connector from the busbar contact and the outgoing line contact, press the push rod to push the elastic push rod 6 to drive the conical push block 7 to move.

[0031] The above is only the preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent embodiment with equivalent changes, without departing from the scope of the technical solution of the present invention. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments according to the technology of the present invention without departing from the content of the technical solution of the present invention all fall within the protection scope of this technical solution.

Claims

1. A 10KV indoor circuit breaker device, characterized in that, It includes a circuit breaker (1) with rollers on both sides, a crossbar (2), a screw (3), a reset component, a separation component, and a reset connection component. The crossbar (2) is arranged on one side of the circuit breaker (1). The screw (3) is rotatably arranged on the crossbar (2). A moving block (4) is fixedly arranged on the lower end face of the circuit breaker (1). A screw sleeve (5) is detachably arranged on the moving block (4). The screw sleeve (5) is threadedly connected to the screw (3). An elastic push rod (6) is slidably arranged in the screw (3). The reset component and the reset connection component are connected to the crossbar (2). The rotation of the screw (3) drives the circuit breaker (1) to move on the screw (3) until the screw sleeve (5) abuts against the separation component. Press the elastic push rod (6) to make the conical push block (7) at the end of the elastic push rod (6) push the separation component to make the screw sleeve (5) disengage from the moving block (4), so that the circuit breaker (1) returns under the action of the reset component. The reset component includes a first limit rod (41), a reset spring (42), and a slider (43). The first limit rod (41) is arranged on both sides of the crossbar (2). The slider (43) is fixedly connected to the bottom surface of the circuit breaker (1). The slider (43) is slidably sleeved on the first limit rod (41). The reset spring (42) is arranged on the first limit rod (41). The two ends of the reset spring (42) are respectively connected to the crossbar (2) and the slider (43). A cross plate (44) is connected to the end of the first limit rod (41). The separation component is arranged on the cross plate (44). The separation component includes an "H"-shaped rod (51) slidably arranged on the cross plate (44), a square push block (52), a second limit rod (54), and a third spring (55). The square push block (52) is connected to the "H"-shaped rod (51). The second limit rod (54) is arranged on the cross plate (44). The third spring (55) is sleeved on the second limit rod (54). The second limit rod (54) is slidably connected to the square push block (52). A first wedge block (56) is arranged at the end of the square push block (52). The first wedge block (56) abuts against the conical push block (7). The reset connection component includes a stop block (61) and a second wedge block (62). The stop block (61) is connected to the crossbar (2) through a connecting rod. The second wedge block (62) is arranged on the stop block (61).

2. The 10KV indoor circuit breaker device according to claim 1, characterized in that, The moving block (4) is detachably connected to the screw sleeve (5) through an elastic connection component.

3. The 10KV indoor circuit breaker device according to claim 2, characterized in that, The elastic connection component includes a first elastic connection component and a second elastic connection component. The first elastic connection component includes a first locking rod (21) slidably arranged at one end of the moving block (4) and a first spring (22). The first spring (22) is sleeved on the first locking rod (21) and connected to the moving block (4). A first circular push block (23) is arranged at the end of the first locking rod (21).

4. The 10KV indoor circuit breaker device according to claim 3, characterized in that, The second elastic connection component includes a second locking rod (31) and a second spring (32) provided at the other end of the moving block (4). The second spring (32) is sleeved on the second locking rod (31) and connected to the moving block (4). A second circular push block (33) is provided at the end of the second locking rod (31); an inclined cutting surface is provided at the end of the second locking rod (31).

5. The 10KV indoor circuit breaker device according to claim 4, characterized in that, The "H"-shaped rod (51) is inserted into the first elastic connection component and the second elastic connection component, so that the elastic push rod (6) can push the conical push block (7) to drive the first wedge-shaped block (56) to drive the square push block (52) to move by pressing, so that the "H"-shaped rod (51) toggles the first circular push block (23) and the second circular push block (33) to unlock the screw sleeve (5).

6. The 10KV indoor circuit breaker device according to claim 5, characterized in that, The first circular push block (23) and the second wedge-shaped block (62) are in contact with each other, so that the end of the first locking rod (21) is received into the moving block (4).

7. The 10KV indoor circuit breaker device according to claim 6, characterized in that, It further includes a third limiting rod (10). The third limiting rod (10) is connected to the cross plate (44) and the stopper (61). The screw sleeve (5) is slidably sleeved on the third limiting rod (10).

8. The 10KV indoor circuit breaker device according to claim 1, characterized in that, A rotating groove (8) for rotating the screw rod (3) is provided on the cross bar (2). A square block (9) is protrudingly provided at the end of the screw rod (3). The square block (9) is located in the rotating groove (8).

9. The 10KV indoor circuit breaker device according to claim 8, characterized in that, It further includes a handle. A push rod is press-fitted on the handle. The end of the elastic push rod (6) is located in the square block (9). The handle is inserted into the rotating groove (8) so that the push rod is aligned with the elastic push rod (6).

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