Circuit breaker energy storage spring assembly and circuit breaker

Abstract

The circuit breaker energy storage spring assembly comprises a first seat body and a second seat body which are oppositely arranged, an energy storage spring is installed between the first seat body and the second seat body, the first seat body is fixedly connected with a guide insertion rod, the second seat body is provided with an insertion hole part, and the guide insertion rod is fixedly connected with the insertion hole part. The guide insertion rod is at least partially inserted into the insertion hole part in a matched mode, and the second base body is provided with a limiting piece which can be in limiting fit with the guide insertion rod so as to lock the matching distance between the first base body and the second base body or release the limiting fit so as to release the matching distance between the first base body and the second base body. According to the utility model, the end part of the insertion rod can be guided to be locked in the insertion hole part by utilizing the limiting piece, so that the distance between the first seat body and the second seat body is locked, and the energy storage spring is further kept in a compressed state and forms a modular structure, thereby facilitating the subsequent disassembly and assembly operation of the energy storage spring assembly in the circuit breaker operating mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker energy storage spring assembly and a circuit breaker. Background Art

[0002] The supporting base plate of the circuit breaker energy storage spring in the prior art is fixed to the side plate of the operating mechanism by bolts. During the installation of the energy storage spring, an external force is required to compress the energy storage spring, and then the supporting base plate is fixed to the side of the operating mechanism by bolts to complete the assembly operation of the energy storage spring in the operating mechanism. However, during the installation of the energy storage spring, it is necessary to compress the energy storage spring while fixing the supporting base plate to the side plate of the operating mechanism by bolts, which makes the entire assembly process relatively difficult and the assembly efficiency is low. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a circuit breaker energy storage spring assembly, which mainly solves the technical problem of low assembly efficiency of the energy storage spring of the existing circuit breaker in the operating mechanism.

[0004] To achieve the above-mentioned purpose, the present invention is realized through the following technical solutions:

[0005] A circuit breaker energy storage spring assembly includes a first base body and a second base body arranged opposite to each other, an energy storage spring is installed between the first base body and the second base body, and a guide rod is fixedly connected to the first base body, a socket portion is provided on the second base body, the guide rod is at least partially adapted to be inserted into the socket portion, and a limiting member is provided on the second base body, which can form a limiting cooperation with the guide rod to lock the fitting spacing between the first base body and the second base body or release the limiting cooperation to release the fitting spacing between the first base body and the second base body.

[0006] Furthermore, when the limiting piece on the second seat body forms a limiting fit with the guide rod, the fitting distance between the first seat body and the second seat body is locked, and the energy storage spring is compressed by the first seat body and the second seat body to form an energy storage state.

[0007] Furthermore, a limiting recess is provided at the head position of the guide rod, and a connecting hole radially connecting the socket portion is provided on the second seat body. The limiting member is a limiting pin structure, and the limiting member is adaptively inserted into the connecting hole and forms a limiting fit with the limiting recess of the guide rod, thereby forming an anti-retraction effect on the plug-in fit of the guide rod and the socket portion, so as to lock the fitting distance between the first seat body and the second seat body.

[0008] Furthermore, the limiting recess is a perforated structure that radially penetrates the head of the guide rod.

[0009] Furthermore, the limiting recess is an annular groove structure provided at the position of the head of the guide rod.

[0010] Furthermore, the first seat body is a base structure, and the second seat body is a guide seat structure for connecting to the energy storage lever of the circuit breaker operating mechanism.

[0011] Furthermore, it also includes a supporting base plate, the first base body is configured to be rotatably connected to the supporting base plate, and the supporting base plate is plugged and fixed to the side plate of the circuit breaker operating mechanism through a plug-in fixed connection structure.

[0012] Furthermore, a connecting protrusion is provided at the outer end of the first seat body, and a connecting hole corresponding to the connecting protrusion is opened on the support bottom plate.

[0013] Based on the same inventive concept, the present invention also provides a circuit breaker, including a circuit breaker operating mechanism and any of the above-mentioned circuit breaker energy storage spring assemblies, wherein oppositely arranged plug-in slots are provided on the two side plates of the circuit breaker operating mechanism, and the two ends of the supporting base plate are respectively plugged into the corresponding plug-in slots on the two side plates.

[0014] Furthermore, a reinforcing rib is formed on the supporting bottom plate and matches the distance between the two side plates of the operating mechanism, and two ends of the reinforcing rib are respectively in contact with the inner side walls of the two side plates.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] In the circuit breaker energy storage spring assembly and circuit breaker described in the present invention, a socket portion and a guide plug rod that cooperate with each other are provided between the first seat body and the second seat body, and a limit piece is provided on the second seat body, and the energy storage spring is sleeved on the guide plug rod. When the energy storage spring assembly is to be installed in the operating mechanism of the circuit breaker, pressure can be applied to the first seat body and the second seat body to make the two close together and thus compress the energy storage spring. Then, the end of the guide plug rod is locked in the socket portion by using the limit piece. In this way, the distance between the first seat body and the second seat body is locked, so that the energy storage spring is kept in a compressed state and a modular structure is formed. Then, the assembled entire energy storage spring assembly can be conveniently assembled into the operating mechanism of the circuit breaker, and then the limit piece can be removed to release the compression lock of the spring for normal use. There is no need to apply force to compress the spring while fixing the supporting base plate. Its installation is quick and convenient, and the assembly efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the circuit breaker energy storage spring assembly according to the first embodiment of the present utility model.

[0018] Figure 2 It is a schematic diagram of the exploded structure of the circuit breaker energy storage spring assembly of the first embodiment of the present utility model.

[0019] Figure 3It is a schematic diagram of the disassembled structure of the first base and the second base of the first embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the assembled state of the circuit breaker energy storage spring assembly according to the first embodiment of the present utility model.

[0021] Figure 5 It is an exploded schematic diagram of the assembly state of the circuit breaker energy storage spring assembly of the first embodiment of the present utility model.

[0022] Figure 6 This is a schematic diagram of the disassembled structure of the first base and the second base of the second embodiment of the present invention.

[0023] Description of labels:

[0024] 1. First seat body, 2. Second seat body, 3. Energy storage spring, 4. Limiting member, 5. Support base plate, 6. Energy storage lever, 7. Side plate, 11. Guide rod, 12. Connecting protrusion, 21. Inserting hole, 22. Connecting hole, 51. Connecting hole, 52. Reinforcing rib, 71. Inserting slot, 111. Limiting recess. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0027] Example 1

[0028] Please refer to the attached Figure 1 To the attached Figure 5An embodiment of the present invention provides a circuit breaker energy storage spring assembly, including a first base body 1 and a second base body 2 arranged relatively to each other, an energy storage spring 3 is installed between the first base body 1 and the second base body 2, and a guide plug rod 11 is fixedly connected to the first base body 1, and a socket portion 21 is provided on the second base body 2. The guide plug rod 11 is at least partially adapted to be inserted into the socket portion 21, and a limit member 4 is provided on the second base body 2, which can form a limiting fit with the guide plug rod 11 to lock the fitting distance between the first base body 1 and the second base body 2 or release the limiting fit to release the fitting distance between the first base body 1 and the second base body 2. It can be understood that in this embodiment, a socket portion 21 and a guide rod 11 that cooperate with each other are provided between the first seat body 1 and the second seat body 2, and a limit member 4 is provided on the second seat body 2, and the energy storage spring 3 is sleeved on the guide rod 11. When the energy storage spring assembly is to be installed in the operating mechanism of the circuit breaker, pressure can be applied to the first seat body 1 and the second seat body 2 to make the two close together and thus compress the energy storage spring 3. Then, the end of the guide rod 11 is locked in the socket portion 21 using the limit member 4. In this way, the distance between the first seat body 1 and the second seat body 2 is locked, so that the energy storage spring 3 is kept in a compressed state and a modular structure is formed. Then, the entire assembled energy storage spring assembly can be conveniently assembled into the operating mechanism of the circuit breaker, and then the limit member 4 is removed to release the compression lock of the spring for normal use. Compared with the existing technology, there is no need to apply force to compress the spring while fixing the support base plate. Its installation is quick and convenient, and the assembly efficiency is high. In actual applications, when the spring needs to be replaced, it is only necessary to reuse the limiting member 4 and the guide rod 11 to form a limiting fit to lock the fitting distance between the first base body 1 and the second base body 2.

[0029] Please refer to the attached Figure 1 To the attached Figure 3 In one preferred embodiment, when the stopper 4 on the second base 2 engages the guide rod 11, the spacing between the first and second bases 1 and 2 is locked, and the energy storage spring 3 is compressed by the first and second bases 1 and 2, forming a stored energy state. In this embodiment, the energy storage spring assembly has a pre-compressed, locked state, facilitating subsequent maintenance, disassembly, and installation, significantly improving on-site maintenance efficiency and quality.

[0030] Please refer to the attached Figure 1 To the attached Figure 3In one preferred embodiment, a limiting recess 111 is defined at the head of the guide rod 11, and a connecting hole 22 radially connected to the receptacle portion 21 is defined in the second base 2. The limiting member 4 is a limiting pin structure, and the limiting member 4 is adaptively inserted into the connecting hole 22 to form a limiting fit with the limiting recess 111 of the guide rod 11, thereby preventing the guide rod 11 from being inserted into the receptacle portion 21 and locking the fitting distance between the first base 1 and the second base 2. In this embodiment, the limiting recess 111 is preferably a perforated structure that radially penetrates the head of the guide rod 11. It can be understood that in this embodiment, by designing the limiting recess 111 as a perforated structure that passes through the head of the guide rod 11, when it cooperates with the limiting pin, a stable and high-strength limiting cooperation effect can be produced. In this way, the cooperation distance between the first seat body 1 and the second seat body 2 can be more firmly locked, effectively avoiding the problem of failure of the locking state between the first seat body 1 and the second seat body 2 due to unstable locking of the limiting member 4 when installing the energy storage spring assembly, and ensuring the operational safety during the installation of the energy storage spring assembly.

[0031] Please refer to the attached Figure 1 To the attached Figure 5 In one preferred embodiment, the first seat body 1 is a base structure, and the second seat body 2 is a guide seat structure for connecting to the energy storage lever 6 of the circuit breaker operating mechanism.

[0032] Please refer to the attached Figure 1 To the attached Figure 5 In one preferred embodiment, the first base 1 is further configured to be rotatably connected to the support base 5. The support base 5 is also plug-fastened to the side panels of the circuit breaker operating mechanism via a plug-fastening structure. In this embodiment, the support base 5 is plug-fastened to the side panels of the circuit breaker operating mechanism via a plug-fastening structure. Compared to existing structures that use bolts to secure the support base, this embodiment provides a faster and simpler installation process, eliminating the need for bolt alignment and locking, and reducing the number of components, thereby improving overall assembly efficiency.

[0033] Please refer to the attached Figure 3 To the attached Figure 5 In one preferred embodiment, a connecting protrusion 12 is provided at the outer end of the first base body 1, and a connecting hole 51 corresponding to the connecting protrusion 12 is opened on the supporting base plate 5.

[0034] An embodiment of the present invention further provides a circuit breaker, comprising a circuit breaker operating mechanism and a circuit breaker energy storage spring assembly according to any of the above embodiments, wherein oppositely arranged plug-in slots 71 are provided on two side plates 7 of the circuit breaker operating mechanism, and the two ends of the support base plate 5 are respectively plugged into corresponding plug-in slots 71 on the two side plates 7.

[0035] Please refer to the attached Figure 4 , Attachment Figure 5 In one preferred embodiment, a reinforcing rib 52 is formed on the supporting base plate 5 and is adapted to the distance between the two side plates 7 of the operating mechanism, and both ends of the reinforcing rib 52 are respectively in contact with the inner side walls of the two side plates 7.

[0036] Example 2

[0037] Please refer to the attached Figure 6 The difference between this embodiment and the first embodiment is that the limiting recess 111 is an annular groove structure provided at the head position of the guide rod 11 .

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. 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 make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present invention.

Claims

1. A circuit breaker energy storage spring assembly, characterized in that: The invention comprises a first base body (1) and a second base body (2) arranged opposite to each other, an energy storage spring (3) is installed between the first base body (1) and the second base body (2), a guide plug rod (11) is fixedly connected to the first base body (1), a socket portion (21) is provided on the second base body (2), the guide plug rod (11) is at least partially adapted to be inserted into the socket portion (21), and a limiting member (4) is provided on the second base body (2) which can form a limiting fit with the guide plug rod (11) to lock the fitting distance between the first base body (1) and the second base body (2) or release the limiting fit to release the fitting distance between the first base body (1) and the second base body (2).

2. The circuit breaker energy storage spring assembly according to claim 1, characterized in that: When the limiting member (4) on the second seat body (2) forms a limiting fit with the guide insert rod (11), the fitting distance between the first seat body (1) and the second seat body (2) is locked, and the energy storage spring (3) is compressed by the first seat body (1) and the second seat body (2) to form an energy storage state.

3. The circuit breaker energy storage spring assembly according to claim 1, characterized in that: A limiting recess (111) is provided at the head of the guide rod (11), and a connecting hole (22) is provided on the second seat body (2) for radially connecting the socket portion (21). The limiting member (4) is a limiting pin structure, and the limiting member (4) is adaptively inserted into the connecting hole (22) and forms a limiting fit with the limiting recess (111) of the guide rod (11), thereby forming an anti-retraction effect on the plug-in fit of the guide rod (11) and the socket portion (21), so as to lock the fitting distance between the first seat body (1) and the second seat body (2).

4. The circuit breaker energy storage spring assembly according to claim 3, characterized in that: The limiting recess (111) is a perforated structure that radially penetrates the head of the guide rod (11).

5. The circuit breaker energy storage spring assembly according to claim 3, characterized in that: The limiting recess (111) is an annular groove structure arranged at the head position of the guide rod (11).

6. The circuit breaker energy storage spring assembly according to any one of claims 1 to 5, characterized in that: The first seat body (1) is a base structure, and the second seat body (2) is a guide seat structure for connecting with an energy storage lever (6) of a circuit breaker operating mechanism.

7. The circuit breaker energy storage spring assembly according to claim 6, characterized in that: It also includes a supporting base plate (5), the first base body (1) is configured to be rotatably connected to the supporting base plate (5), and the supporting base plate (5) is plugged and fixed to the side plate (7) of the circuit breaker operating mechanism through a plug-in fixed connection structure.

8. The circuit breaker energy storage spring assembly according to claim 7, characterized in that: A connecting protrusion (12) is provided at the outer end of the first seat body (1), and a connecting hole (51) corresponding to the connecting protrusion (12) is opened on the supporting bottom plate (5).

9. A circuit breaker, characterized in that: The invention comprises a circuit breaker operating mechanism and a circuit breaker energy storage spring assembly as claimed in any one of claims 7 or 8, wherein oppositely arranged plug-in slots (71) are provided on two side plates (7) of the circuit breaker operating mechanism, and two ends of the supporting base plate (5) are respectively plugged into corresponding plug-in slots (71) on the two side plates (7).

10. The circuit breaker according to claim 9, characterized in that: A reinforcing rib (52) adapted to the spacing between the two side plates (7) of the operating mechanism is formed on the supporting bottom plate (5), and two ends of the reinforcing rib (52) respectively abut against the inner side walls of the two side plates (7).

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