Pressing disassembly type high-voltage circuit breaker

Abstract

The utility model relates to the field of circuit breakers, in particular to a press-detachable high-voltage circuit breaker. Comprising a base and a cover plate which are connected through a spring buckle assembly; the spring buckle assembly comprises a connecting swing rod with one end hinged to the base and the other end provided with a fixing cross rod; the pressing clamping piece is arranged in the cover plate in a sliding mode and provided with a positioning block, a first positioning groove and a second positioning groove, and the positioning block is provided with a third positioning groove; when the connecting swing rod is inserted into the clamping cavity and presses the pressing clamping piece, the fixing transverse rod slides into the first positioning groove, the pressing clamping piece is loosened, the fixing transverse rod slides into the third positioning groove, when the pressing clamping piece is pressed, the fixing transverse rod slides into the second positioning groove, and when the pressing clamping piece is loosened, the connecting swing rod is separated from the clamping cavity. The base and the cover plate are fixed in a pressing mode, the fixing mode is simplified, the base and the cover plate can be fixed only through pressing operation, operation is convenient, and disassembly is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of circuit breakers, in particular to a push-to-disassemble high-voltage circuit breaker. Background Art

[0002] High Voltage Circuit Breaker (HVCB) is an automatic disconnect device used in high voltage power systems, primarily used to protect equipment and circuits from overloads, short circuits, and other electrical faults. They play an important role in power transmission and distribution systems, ensuring the safety and stability of the power system. The following is a detailed introduction to high voltage circuit breakers:

[0003] Working principle:

[0004] The basic working principle of a high-voltage circuit breaker is to detect changes in current and quickly cut off the circuit when a fault occurs. Its working process usually includes the following steps:

[0005] Fault detection: When the current exceeds a set threshold, a detection device inside the circuit breaker (such as an electromagnetic element or a thermal element) will identify the fault.

[0006] Trigger mechanism: Once a fault is detected, the trigger mechanism will immediately operate, driving the switch contacts to separate and cut off the circuit.

[0007] Restoration Operation: Manual or automatic resetting of the circuit breaker to restore power to the circuit after the fault is eliminated.

[0008] The base and cover of a high-voltage circuit breaker are usually connected with screws, but the high-voltage circuit breaker may cause the screws to be electrified, causing danger if the screws are accidentally touched.

[0009] Therefore, there is an urgent need to provide an improved technical solution to solve the above technical problems. Utility Model Content

[0010] The purpose of the present invention is to provide a push-to-disassemble high-voltage circuit breaker with technical effects in response to the above-mentioned technical problems.

[0011] In view of this, the present invention provides a push-to-disassemble high-voltage circuit breaker, comprising a housing and an internal mechanism disposed within the housing, wherein the housing comprises a base and a cover, and the base and the cover are connected by a spring buckle assembly;

[0012] The spring clip assembly includes:

[0013] A connecting swing rod, one end of which is hinged on the base and the other end of which is provided with a fixed cross bar;

[0014] A pressing card piece is slidably arranged in the cover plate and provided with a reset spring for pressing the card piece to reset. A card cavity is provided in the pressing card piece and a positioning block is provided in the card cavity. The card cavity includes: a first positioning groove and a second positioning groove, and the positioning block is provided with a third positioning groove;

[0015] When the connecting swing rod is inserted into the card connection cavity and the card connection piece is pressed, the fixed cross rod slides into the first positioning groove first, and then the card connection piece is released and pressed, and the fixed cross rod slides into the third positioning groove. When the card connection piece is pressed again, the fixed cross rod slides into the second positioning groove, and when the card connection piece is released and pressed, the connecting swing rod is disengaged from the card connection cavity.

[0016] Furthermore, when the pressing engaging piece is in the unlocking state, the pressing engaging piece protrudes from the surface of the cover plate.

[0017] Furthermore, it also includes:

[0018] There are two limit rods, which are respectively arranged on both sides of the swing rod.

[0019] Furthermore, a first guide surface is provided on the positioning block, and when the fixed cross bar contacts the first guide surface, it will preferentially move toward the first positioning groove.

[0020] Furthermore, the second guide surface is provided on the pressing clamping piece, and the second guide surface preferentially guides the fixed cross bar to the first guide surface.

[0021] Furthermore, the second guide surface is provided on the pressing clamping piece, and the second guide surface preferentially guides the fixed cross bar to the first guide surface, and the limiting rod ensures that the fixed cross bar is always within the range of the second guide surface.

[0022] The beneficial effects of the utility model are:

[0023] 1. The utility model realizes the fixation of the base and the cover by pressing, which simplifies the fixing method. It can be fixed by pressing, which is convenient to operate and more convenient to disassemble.

[0024] 2. The present invention enables the operator to more intuitively see whether the state of the pressing card piece is locked or unlocked by making the pressing card piece protrude from the surface of the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0026] Figure 2 This is a structural diagram of the installation position of the spring buckle assembly of the utility model;

[0027] Figure 3 for Figure 2 Schematic diagram of the structure of area A in the middle.

[0028] The marks in the figure are:

[0029] 1. Base; 2. Cover; 3. Connecting swing rod; 4. Fixed cross bar; 5. Pressing card; 6. Return spring; 7. First positioning slot; 8. Second positioning slot; 9. Third positioning slot; 10. Positioning block; 11. Limiting rod; 12. First guide surface; 13. Second guide surface. DETAILED DESCRIPTION

[0030] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0031] It should be noted that the directional words such as front, back, left, and right mentioned in the article are consistent with the normally placed circuit breakers.

[0032] Example 1:

[0033] This embodiment provides a push-to-disassemble high-voltage circuit breaker, comprising a housing and an internal mechanism disposed within the housing, wherein the housing comprises a base 1 and a cover 2, and the base 1 and the cover 2 are connected by a spring buckle assembly;

[0034] The spring clip assembly includes:

[0035] A connecting swing rod 3, one end of which is hinged on the base 1, and the other end of which is provided with a fixed cross bar 4;

[0036] Press the card plate 5, which is slidably arranged in the cover plate 2 and is provided with a return spring 6 for pressing the card plate 5 to return to its original position. A card cavity is provided in the card plate 5 and a positioning block 10 is provided in the card cavity. The card cavity includes: a first positioning groove 7 and a second positioning groove 8. The positioning block 10 is provided with a third positioning groove 9;

[0037] When the connecting swing rod 3 is inserted into the card cavity and the card plate 5 is pressed, the fixed cross bar 4 slides into the first positioning groove 7 first, and then the card plate 5 is released and pressed, the fixed cross bar 4 slides into the third positioning groove 9, and when the card plate 5 is pressed again, the fixed cross bar 4 slides into the second positioning groove 8, and when the card plate 5 is released and pressed, the connecting swing rod 3 is disengaged from the card cavity.

[0038] The above-mentioned spring clip assemblies can be provided in multiple groups to increase stability. For example, two are provided on each of the left and right sides of the cover plate 2, one end of the swing rod 3 is inserted into the side wall of the base 1 and is hinged to the base 1, and the other end of the swing rod 3 is placed outside the base 1 and can swing up and down, and a fixed cross bar 4 is provided at this end; the pressing card piece 5 is slidably arranged on the cover plate 2 front and back, and the pressing card piece 5 passes through the front and back sides of the cover plate 2, and a convex portion is provided on the upper and lower sides of the pressing card piece 5, a return spring 6 is provided between the convex portion and the cover plate 2, and a card cavity is provided on the end surface of the pressing card piece 5 facing the base 1, and a first positioning groove 7 and a second positioning groove 8 as shown in the figure are provided in the card cavity, and a third positioning groove 9 is provided in the positioning block 10. It should be noted that one end of the positioning block 10 is fixedly connected to one side wall of the card cavity, and the other end of the positioning block 10 is separated from the card cavity. This gap is used to connect the normal movement of the swing rod 3.

[0039] When the connecting swing rod 3 is inserted into the card cavity and the card plate 5 is pressed, the fixed cross bar 4 slides into the first positioning groove 7 first, and then the card plate 5 is released and pressed, the fixed cross bar 4 slides into the third positioning groove 9, and when the card plate 5 is pressed again, the fixed cross bar 4 slides into the second positioning groove 8, and when the card plate 5 is released and pressed, the connecting swing rod 3 is disengaged from the card cavity.

[0040] The above structure can realize the fixing of the base 1 and the cover 2 by pressing, which simplifies the fixing method. The base 1 and the cover 2 can be fixed by pressing, which is convenient for operation and more convenient for disassembly.

[0041] Example 2:

[0042] This embodiment provides a push-to-disassemble high-voltage circuit breaker, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0043] When the pressing engaging piece 5 is in the unlocking state, the pressing engaging piece 5 protrudes from the surface of the cover plate 2 .

[0044] Providing the pressing latch piece 5 to protrude from the surface of the cover plate 2 allows the operator to more intuitively see whether the pressing latch piece 5 is in a locked or unlocked state at this time.

[0045] Example 3:

[0046] This embodiment provides a push-to-disassemble high-voltage circuit breaker, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0047] Also includes:

[0048] There are two limiting rods 11 , which are respectively arranged on both sides of the swing rod 3 .

[0049] The limiting rods 11 are arranged on the upper and lower sides of the connecting swing rod 3. The limiting rods 11 can prevent the connecting swing rod 3 from swinging too much, so that the connecting swing rod 3 can better cooperate with the pressing clamping piece 5.

[0050] Example 4:

[0051] This embodiment provides a push-to-disassemble high-voltage circuit breaker, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0052] A first guide surface 12 is provided on the positioning block 10 . When the fixing cross bar 4 contacts the first guide surface 12 , it will preferentially move toward the first positioning groove 7 .

[0053] The first guide surface 12 is provided to prevent the fixed cross bar 4 from moving to a wrong direction.

[0054] Example 5:

[0055] This embodiment provides a push-to-disassemble high-voltage circuit breaker, which, in addition to the technical solutions of the above-mentioned embodiments, also has the following technical features.

[0056] The second guide surface 13 is provided on the pressing clamping piece 5 , and the second guide surface 13 preferentially guides the fixing cross bar 4 to the first guide surface 12 .

[0057] The second guide surface 13 is provided to prevent the fixed cross bar 4 from moving to a wrong direction.

[0058] Example 6:

[0059] The second guide surface 13 is provided on the pressing clamping piece 5 . The second guide surface 13 guides the fixed cross bar 4 to the first guide surface 12 first, and the limiting rod 11 ensures that the fixed cross bar 4 is always within the range of the second guide surface 13 .

[0060] The limiting rod 11 prevents the fixed cross bar 4 from being out of the range of the second guide surface 13, thereby preventing the second guide surface 13 from failing to play a guiding role.

[0061] The embodiments of the present application are described above in conjunction with the accompanying drawings. Unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which fall within the scope of protection of this application.

Claims

1. A push-to-disassemble high-voltage circuit breaker, comprising a housing and an internal mechanism disposed within the housing, characterized in that: The housing comprises a base (1) and a cover (2), and the base (1) and the cover (2) are connected via a spring buckle assembly; The spring clip assembly includes: A connecting swing rod (3), one end of which is hinged to the base (1) and the other end of which is provided with a fixed cross bar (4); A pressing card plate (5) is slidably arranged in the cover plate (2) and is provided with a reset spring (6) for resetting the pressing card plate (5). A card cavity is provided in the pressing card plate (5) and a positioning block (10) is provided in the card cavity. The card cavity includes a first positioning groove (7) and a second positioning groove (8). The positioning block (10) is provided with a third positioning groove (9). When the connecting swing rod (3) is inserted into the clamping cavity and the clamping piece (5) is pressed, the fixed cross rod (4) slides into the first positioning groove (7), and then the clamping piece (5) is released and the fixed cross rod (4) slides into the third positioning groove (9). When the clamping piece (5) is pressed again, the fixed cross rod (4) slides into the second positioning groove (8), and when the clamping piece (5) is released and pressed, the connecting swing rod (3) is released from the clamping cavity.

2. The push-to-disassemble high-voltage circuit breaker according to claim 1, characterized in that: When the pressing card connecting piece (5) is in the unlocking state, the pressing card connecting piece (5) protrudes from the surface of the cover plate (2).

3. The push-to-disassemble high-voltage circuit breaker according to claim 1, characterized in that: Also includes: The limiting rods (11) are provided with two limiting rods (11), which are respectively arranged on both sides of the connecting swing rod (3).

4. The push-to-disassemble high-voltage circuit breaker according to claim 1, characterized in that: A first guide surface (12) is provided on the positioning block (10). When the fixed crossbar (4) contacts the first guide surface (12), it will preferentially move toward the first positioning groove (7).

5. The push-to-disassemble high-voltage circuit breaker according to claim 4, characterized in that: The second guide surface (13) is arranged on the pressing clamping piece (5), and the second guide surface (13) preferentially guides the fixed cross bar (4) to the first guide surface (12).

6. The push-to-disassemble high-voltage circuit breaker according to claim 3, characterized in that: The second guide surface (13) is arranged on the pressing clamping piece (5), and the second guide surface (13) preferentially guides the fixed cross bar (4) to the first guide surface (12), and the limiting rod (11) ensures that the fixed cross bar (4) is always within the range of the second guide surface (13).

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