Energy storage indication structure for circuit breaker spring operating mechanism

Abstract

The utility model discloses an energy storage indication structure for a breaker spring operating mechanism. The energy storage indication structure comprises a spring cylinder. The indication seat is arranged at the top of the spring barrel, the top of the indication seat is connected with a protection piece, and a non-energy-storage indication board is arranged in the protection piece; one end of the indication adjusting assembly is installed at the end of the spring barrel, the other end of the indication adjusting assembly extends to the bottom of the indication base to be connected with one end of the indication board with stored energy, and the other end of the indication board with stored energy is located in the protection piece and is parallel to the indication board without stored energy; in the energy storage state, the indication adjusting assembly drives the indication board with stored energy to move, and the indication board without stored energy is shielded. According to the indicating structure, the indicating and adjusting assembly drives the indicating board with stored energy to move to shield the indicating board without stored energy, flexible display of indicating changes of the energy storage state is achieved, the whole indicating and adjusting assembly is few in part and simple in structure, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit breakers, and in particular relates to an energy storage indicating structure for a spring operating mechanism of a circuit breaker. Background Art

[0002] High-voltage circuit breakers refer to mechanical switching devices that can open, close and carry the normal current of the operating line, and can also carry, open and close abnormal current within a specified time. They are the most important control and protection equipment in the power system. The opening and closing action of the contacts in the circuit breaker is driven by the operating mechanism. The working performance of the operating mechanism directly affects the opening and closing characteristics and action reliability of the circuit breaker. The operating mechanisms of high-voltage circuit breakers mainly include hydraulic operating mechanisms, spring operating mechanisms and pneumatic operating mechanisms. Due to the characteristics of fast response, small size, light weight, simple structure, low operating noise and no pollution to the environment, the spring operating mechanism has been widely used in various self-energy and semi-self-energy arc extinguishing chambers with relatively small operating power, especially in the voltage level of 126~252kV. The spring operating mechanism has become the preferred mechanism due to its many advantages.

[0003] At present, publication number CN201811574598.X provides a spring energy storage indication device and a spring operating mechanism. This scheme realizes the energy storage indication function through a pointer indicator installed on the sliding rod. The overall number of parts is large, and the processing of individual parts is relatively complicated and the cost is high; secondly, no protective cover and other related parts are provided, while this patent installs a protective cover above the energy storage indicator to avoid jamming caused by foreign objects falling; finally, the sliding rod drives the pointer to move radially in the U-shaped groove, which is easy to cause the indication to fail due to jamming of foreign objects. Utility Model Content

[0004] The utility model provides an energy storage indicating structure for a circuit breaker spring operating mechanism, which is used to solve the above technical defects.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An energy storage indicating structure for a circuit breaker spring operating mechanism, comprising:

[0007] Spring barrel;

[0008] An indicator seat is arranged on the top of the spring tube, the top of the indicator seat is connected to a protective member, and a non-energy-storage indicator plate is arranged inside the protective member;

[0009] An indicator adjustment component, one end of which is mounted on the end of the spring tube, and the other end of which extends to the bottom of the indicator seat and is connected to one end of the energy-stored indicator sign, and the other end of the energy-stored indicator sign is located in the protective member and parallel to the energy-unstored indicator sign;

[0010] Among them, in the energy storage state, the indication adjustment component drives the energy-stored indication sign to move and blocks the non-energy-stored indication sign.

[0011] Furthermore, a support is provided at the bottom of the indicator seat, and an end of the support is fixed to the top of the spring tube;

[0012] The support is provided with a movable opening, and the other end of the indication adjustment component passes through the movable opening and is connected with the energy-stored indication sign.

[0013] Further, the indication adjustment assembly comprises a baffle, one end of which is connected to the slide rod, and the other end of which is connected to the closing spring pull rod, and the closing spring pull rod is connected to the spring cylinder;

[0014] A reset piece is sleeved on the outer side of the slide bar, and the end of the reset piece abuts against the side of the support. The end of the slide bar extends outward through the movable opening, and the energy stored indicator is connected to the end of the slide bar extending outward.

[0015] Furthermore, the energy stored indicator is an L-shaped structure, and the longer end thereof is connected to the indicator adjustment assembly through a cotter pin.

[0016] Furthermore, two supports are provided, and the two supports are arranged in sequence and spaced apart, and one end of the energy stored indicator plate connected to the indication adjustment component is located between the two supports.

[0017] Furthermore, the reset element is a reset spring.

[0018] Furthermore, a buffer is provided on one end of the baffle plate connected to the slide rod.

[0019] Furthermore, the buffer component is a buffer pad.

[0020] Furthermore, the protective member is a hollow structure, and the un-energy-stored indicator sign and the energy-stored indicator sign are located inside the protective member.

[0021] Furthermore, the protective member is a protective cover.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] 1. The indication structure drives the energy-stored indication sign to move and shield the non-energy-stored indication sign through the indication adjustment component, thereby realizing flexible adjustment of the energy storage status indication change. The entire indication adjustment component has few parts and a simple structure, which reduces the operating cost. Secondly, the installation of the protective part solves the problem of jamming caused by the falling of foreign objects, and effectively protects the normal operation of the energy storage indication structure.

[0024] 2. The support is used to guide the movement of the indicating adjustment component, and cooperates with the protective part to avoid jamming of the indicating adjustment component when it moves.

[0025] 3. The installation of the reset part plays a buffering role for the indicating adjustment component.

[0026] 4. The energy stored indicator is designed to be an L-shaped structure, so that when the indication adjustment component moves, the energy stored indicator can be smoothly driven to move in the protective component. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A side view of the energy storage indicating structure for the spring operating mechanism of the circuit breaker provided by the utility model;

[0029] Figure 2 A three-dimensional diagram of the energy storage indicator structure for the spring operating mechanism of the circuit breaker provided by the utility model;

[0030] Figure 3 An assembly diagram of the energy storage indicating structure for the spring operating mechanism of the circuit breaker provided by the utility model;

[0031] Among them: 1. Spring cylinder; 2. Indicator seat; 3. No energy stored indicator plate; 4. Energy stored indicator plate; 5. Protective part; 6. Sliding rod; 7. Reset part; 8. Baffle; 9. Closing spring pull rod; 10. Buffer part. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invented product is usually placed when in use, it is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0037] High-voltage circuit breakers refer to mechanical switching devices that can open, close and carry the normal current of the operating line, and can also carry, open and close abnormal current within a specified time. They are the most important control and protection equipment in the power system. The opening and closing action of the contacts in the circuit breaker is driven by the operating mechanism. The working performance of the operating mechanism directly affects the opening and closing characteristics and action reliability of the circuit breaker. The operating mechanisms of high-voltage circuit breakers mainly include hydraulic operating mechanisms, spring operating mechanisms and pneumatic operating mechanisms. Due to the characteristics of fast response, small size, light weight, simple structure, low operating noise and no pollution to the environment, the spring operating mechanism has been widely used in various self-energy and semi-self-energy arc extinguishing chambers with relatively small operating power, especially in the voltage level of 126~252kV. The spring operating mechanism has become the preferred mechanism due to its many advantages.

[0038] At present, publication number CN201811574598.X provides a spring energy storage indication device and a spring operating mechanism. This scheme realizes the energy storage indication function through a pointer indicator installed on the sliding rod. The overall number of parts is large, and the processing of individual parts is relatively complicated and the cost is high; secondly, no protective cover and other related parts are provided, while this patent installs a protective cover above the energy storage indicator to avoid jamming caused by foreign objects falling; finally, the sliding rod drives the pointer to move radially in the U-shaped groove, which is easy to cause the indication to fail due to jamming of foreign objects.

[0039] In order to solve the above technical defects, the inventor provides an energy storage indication structure for a circuit breaker spring operating mechanism.

[0040] The utility model is further described in detail below with reference to the accompanying drawings:

[0041] The utility model embodiment provides an energy storage indication structure for a circuit breaker spring operating mechanism, such as Figure 1-Figure 3 As shown, it includes: a spring barrel 1; an indicator seat 2, which is arranged at the top of one end of the spring barrel 1, and a protective member 5 is connected to the top of the indicator seat 2. The protective member 5 is a hollow structure, and the non-energy-stored indicator sign 3 and the stored-energy indicator sign 4 are located in the protective member 5. The protective member 5 is preferably a protective cover. The non-energy-stored indicator sign 3 is arranged in the protective member 5; an indicator adjustment component, one end of which is installed at the end of the spring barrel 1, and the other end extends to the bottom of the indicator seat 2 and is connected to one end of the stored-energy indicator sign 4, and the other end of the stored-energy indicator sign 4 is located in the protective member 5 and is parallel to the non-energy-stored indicator sign 3. The length and width of the stored-energy indicator sign 4 are greater than or equal to the length and width of the non-energy-stored indicator sign 3; wherein, in the non-energy-stored state, the indicator adjustment component does not move, and in the energy-stored state, the closing spring in the spring barrel 1 drives the indicator adjustment component to drive the stored-energy indicator sign 4 to move, and the stored-energy indicator sign 4 blocks the non-energy-stored indicator sign 3, so as to realize the flexible display of the energy storage indication state. A support is provided at the bottom of the indicator seat 2, and the end of the support is fixed to the top of the spring tube 1; a movable opening is opened on the support, and the other end of the indicating adjustment component passes through the movable opening and is connected to the energy-stored indicator 4; specifically, the indicating adjustment component includes a baffle 8, one end of the baffle 8 is connected to the slide rod 6, and the other end is connected to the closing spring pull rod 9, and the closing spring pull rod 9 is connected to the spring tube 1; a reset member 7 is sleeved on the outer side of the slide rod 6, and the end of the reset member 7 is against the side of the support, and the end of the slide rod 6 extends outward through the movable opening, and the energy-stored indicator 4 is connected to the end of the slide rod 6 extending outward; the setting of the reset member 7 ensures that during the energy storage process, the two indicator signs will not swing due to the vibration of the overall structure, thereby affecting the indication; on the other hand, they can be quickly reset after the energy is released, thereby realizing the automatic reset function.

[0042] Furthermore, if Figure 2 As shown, there are two supports, which are spaced apart in sequence. The energy stored indicator 4 is an L-shaped structure, and its longer end is connected to the indicator adjustment component through a cotter pin, so that the end of the energy stored indicator 4 connected to the indicator adjustment component is located between the two supports.

[0043] In this embodiment, the reset member 7 is preferably a reset spring.

[0044] In this embodiment, a buffer member 10 is further provided on one end of the baffle plate 8 connected to the slide rod 6 .

[0045] In this embodiment, the buffer member 10 is preferably a buffer pad. In order to avoid collision between the slide rod 6 and the baffle 8 after energy release and extend the service life, the buffer member 10 is added to the baffle 8 to avoid collision between parts and play a buffering and protective role.

[0046] During operation, the closing spring of the spring operating mechanism is in the un-energy-stored state, and the un-energy-stored indicator 3 is fixedly installed on the indicator seat 2 and is not blocked. At this time, it can be observed through the mechanism box observation window that the mechanism energy storage state is un-energy-stored, and the spring operating mechanism starts to store energy. The closing spring is compressed and stores energy under the pull of the closing spring pull rod 9. At the same time, the baffle 8 installed at the end of the closing spring pull rod 9 moves horizontally with the movement of the closing spring pull rod 9, and pushes the slide rod 6 to move, while compressing the reset part 7. Since the energy-stored indicator 4 is fixed to the slide rod 6 by a cotter pin, it will also move with the movement of the slide rod 6 until the closing spring completes energy storage. At this time, the energy-stored indicator 4 has moved from the initial position blocked by the protective member 5 to directly above the un-energy-stored indicator 3, blocking the un-energy-stored indicator 3, and the mechanism energy storage indication shows that energy has been stored. When the closing spring energy is released, the closing spring pull rod 9 returns to the initial position. At this time, the energy stored indicator 4 is reset under the action of the reset member 7 and hidden in the protective member 5. The mechanism energy storage indicator shows that no energy is stored.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An energy storage indication structure for a circuit breaker spring operating mechanism, characterized in that: include: Spring barrel (1); An indicator seat (2) is arranged on the top of the spring tube (1), the top of the indicator seat (2) is connected to a protective member (5), and a non-energy-stored indicator sign (3) is arranged inside the protective member (5); An indicator adjustment component, one end of which is mounted on the end of the spring tube (1), and the other end of which extends to the bottom of the indicator seat (2) and is connected to one end of an energy-stored indicator sign (4), the other end of which is located in the protective member (5) and parallel to the energy-unstored indicator sign (3); In the energy storage state, the indication adjustment component drives the energy stored indication sign (4) to move, thereby shielding the energy unstored indication sign (3).

2. The indicating structure according to claim 1, characterized in that: A support is provided at the bottom of the indicator seat (2), and the end of the support is fixed to the top of the spring tube (1); The support is provided with a movable opening, and the other end of the indication adjustment component passes through the movable opening and is connected to the energy stored indication sign (4).

3. The indicating structure according to claim 2, characterized in that: The indicating adjustment assembly comprises a baffle (8), one end of the baffle (8) is connected to the slide rod (6), and the other end is connected to the closing spring pull rod (9), and the closing spring pull rod (9) is connected to the spring cylinder (1); A reset piece (7) is sleeved on the outer side of the slide bar (6), the end of the reset piece (7) abuts against the side of the support, the end of the slide bar (6) extends outward through the movable opening, and the energy stored indicator (4) is connected to the end of the slide bar (6) extending outward.

4. The indicating structure according to any one of claims 1 to 3, characterized in that: The stored energy indicator (4) is an L-shaped structure, and the longer end thereof is connected to the indicator adjustment component via a cotter pin.

5. The indicating structure according to claim 2, characterized in that: There are two supports, which are arranged in sequence and spaced apart, and one end of the energy stored indicator (4) connected to the indicator adjustment component is located between the two supports.

6. The indicating structure according to claim 3, characterized in that: The reset element (7) is a reset spring.

7. The indicating structure according to claim 3, characterized in that: A buffer member (10) is also provided on one end of the baffle plate (8) connected to the slide rod (6).

8. The indicating structure according to claim 7, characterized in that: The buffer component (10) is a buffer pad.

9. The indicating structure according to claim 1, characterized in that: The protective member (5) is a hollow structure, and the un-energy-stored indicator sign (3) and the energy-stored indicator sign (4) are located inside the protective member (5).

10. The indicating structure according to claim 9, characterized in that: The protective member (5) is a protective cover.

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