Solid-sealed polar pole type circuit breaker
By introducing structures such as straight plates, connecting rods and fixed hooks into the fixed-seal pole circuit breaker, the problem of disassembly of circuit breakers in the existing technology requires two personnel, and a single person is quickly disassembled and efficient maintenance is achieved.
Patent Information
- Application Number
- CN202421108026.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-21
AI Technical Summary
During the disassembly process, the existing solid-sealed pole-column circuit breaker requires at least two staff members to cooperate with each other, and cannot be completed separately by one staff member. The structure is complex and inconvenient to use.
A fixed-seal pole-type circuit breaker including a base, a work box and a circuit breaker body is designed. By setting up structures such as straight plate, connecting rod and fixed hook, the rapid disassembly between the base and the work box is achieved, and the insertion rod is performed. The coordination with the fixing hole enables rapid disassembly of the circuit breaker body and work box.
It realizes a disassembly process that can be completed by a single person, saves labor, improves maintenance efficiency and simplifies operational steps.
Smart Images
Figure CN222281851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of circuit breakers, in particular to a sealed pole type circuit breaker. Background Art
[0002] A circuit breaker is a current switch device that can close, carry and disconnect current under normal circuit conditions, and can close and disconnect current under abnormal circuit conditions within a specified time. With the development of industry, circuit breakers have been widely used, and there are more and more types of circuit breakers, including sealed pole circuit breakers. However, there are still problems with the sealed pole circuit breakers on the market.
[0003] A Chinese patent with announcement number (CN217386995U) discloses a conveniently installed solid-sealed pole type vacuum circuit breaker, including a base, a circuit breaker body and a working box, wherein the circuit breaker body is arranged on the top of the working box, the working box is arranged on the top of the base, grooves are provided on both sides of the bottom of the working box, a movable plate is provided in the groove, and a card block is fixedly provided on one side of the two movable plates away from each other. The utility model grasps two levers and moves them closer to each other, and the two levers drive the movable plate and the card block to move to the top of the card slot, fits the working box with the base, drives the card block to move into the card slot, releases the lever, and multiple springs generate a reverse force to push the card block into the card slot, so that the card block and the card slot are firmly fixed together. When disassembly is required, it is only necessary to process the lever to move toward the center of the working box first, and then the working box can be taken down from the base. The structure is simple and it is very time-saving and labor-saving to use.
[0004] The defect of the above-mentioned selected technology is that when fixing the working box, a reverse force is generated by multiple springs to push the card block into the card slot to fix the working box and the base. When disassembling, the staff needs to grab the two levers and move them to the center of the working box. If the hands are released, the card block will be reinserted into the card slot. Therefore, the disassembly process cannot be completed by one staff member alone, and at least two staff members need to cooperate with each other. Utility Model Content
[0005] The purpose of the utility model is to provide a sealed pole type circuit breaker to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealed pole type circuit breaker comprises a base, the top of the base is detachably connected to a working box, the top of the working box is plugged with a circuit breaker body, a rectangular groove is provided inside the base, a straight plate is slidably connected inside the rectangular groove, one side of the straight plate is fixedly connected to a pull rod, the middle part of the straight plate is fixedly connected to the outside of the base, one end of the pull rod passes through the outside of the base, both ends of the straight plate close to the base are fixedly connected to connecting rods, the tops of the two connecting rods are fixedly connected to fixing hooks for fixing the base and the working box, four sliding grooves are provided on the top of the base, the fixing hooks are slidably connected to the sliding grooves, four fixing grooves are provided at the bottom of the working box, and a second fixing hole used in conjunction with the fixing hooks is provided inside the fixing grooves.
[0007] As a preferred solution of the utility model, two plug rods are fixedly connected to the bottom edge of the circuit breaker body, a first fixing hole for use with a fixing hook is provided inside the plug rod, and two slots for use with the plug rods are provided at positions corresponding to the plug rods on the top of the working box.
[0008] As a preferred solution of the utility model, limiting plates are symmetrically fixedly connected to both sides of the top edge of the base.
[0009] As a preferred solution of the utility model, the insertion rod can extend to the inside of the fixing groove after being inserted into the slot, and the first fixing hole and the second fixing hole are concentric.
[0010] As a preferred solution of the utility model, one end of the pull rod is fixedly connected with a pull plate.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model can quickly disassemble the base and the working box through the straight plate, connecting rod and fixing hook and other structures, and the disassembly steps are simple, which can be completed by only one worker, saving labor. At the same time, the circuit breaker body and the working box can be quickly disassembled through the first fixing hole, the slot and the insertion rod, further improving the maintenance efficiency of the workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the disassembled structure of the base, working box and circuit breaker body of the utility model;
[0013] Figure 2 It is a three-dimensional diagram of the utility model;
[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the base of the utility model;
[0015] Figure 4It is a schematic diagram of the connection structure of the fixing hook and the connecting rod of the utility model;
[0016] Figure 5 This is a schematic diagram of the pull rod structure of the utility model;
[0017] Figure 6 This is a schematic diagram of the fixing groove structure of the utility model.
[0018] In the figure: 1. base; 2. working box; 3. circuit breaker body; 4. rectangular groove; 5. straight plate; 6. elastic member; 7. pull rod; 8. fixing hook; 9. slide groove; 10. connecting rod; 11. first fixing hole; 12. plug rod; 13. slot; 14. limit plate; 15. fixing groove; 16. second fixing hole. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] See also Figures 1 to 6 The utility model provides a technical solution: a sealed pole type circuit breaker, comprising a base 1, a working box 2 is detachably connected to the top of the base 1, a circuit breaker body 3 is plugged into the top of the working box 2, and the circuit breaker body 3 can be directly separated from the working box 2 upwards, a rectangular groove 4 is provided inside the base 1, a straight plate 5 is slidably connected inside the rectangular groove 4, and the straight plate 5 is located on the right side wall of the rectangular groove 4 when not subjected to tension, an elastic member 6 is fixedly connected to one side of the straight plate 5, and the elastic member 6 can be a spring, a pull rod 7 is fixedly connected to the middle of the straight plate 5, one end of the pull rod 7 passes through the outside of the base 1, one end of the pull rod 7 is fixedly connected to the pull plate, and the outer thread of the pull rod 7 A nut is connected, the pull rod 7 is slidably connected to the base 1, and the two ends of the straight plate 5 close to the base 1 are fixedly connected with connecting rods 10, and the connecting rods 10 slide inside the base 1. The tops of the two connecting rods 10 are fixedly connected with fixing hooks 8 for fixing the base 1 and the working box 2. The directions of the four fixing hooks 8 are consistent, facing the direction close to the circuit breaker body 3. Four sliding grooves 9 are provided on the top of the base 1, and the fixing hooks 8 are slidably connected to the sliding grooves 9. Four fixing grooves 15 are provided at the bottom of the working box 2. The fixing grooves 15 are provided with second fixing holes 16 used in conjunction with the fixing hooks 8. After the fixing hooks 8 are inserted into the second fixing holes 16, the working box 2 will be fixed.
[0021] Among them, two plug rods 12 are fixedly connected at the bottom edge of the circuit breaker body 3, and a first fixing hole 11 is opened inside the plug rod 12 for use with the fixing hook 8. Two slots 13 matching the plug rod 12 are opened at the position corresponding to the plug rod 12 on the top of the working box 2. After the plug rod 12 is inserted into the slot 13, the XY direction of the circuit breaker body 3 can be limited.
[0022] The top edge of the base 1 is symmetrically and fixedly connected with limit plates 14 on both sides, and the limit plates 14 can limit the XY direction of the working box 2.
[0023] Among them, after the insertion rod 12 is inserted into the slot 13, it can extend to the inside of the fixing groove 15, and then the fixing hook 8 can fix the working box 2 and the circuit breaker body 3 together. The first fixing hole 11 and the second fixing hole 16 are concentric, and the concentricity of the two holes also facilitates the insertion of the fixing hook 8.
[0024] Specifically, the two connecting rods 10 drive the four fixing hooks 8 to slide to the left, so that the fixing hooks 8 are disengaged from the inside of the second fixing hole 16, and at the same time, are disengaged from the inside of the first fixing hole 11, and then the bolts are twisted in the direction of the straight plate 5 to fix the pulled-out pull rod 7, and then the working box 2 is moved upward to complete the disassembly between the working box 2 and the base 1, and the circuit breaker body 3 is moved upward to make the insertion rod 12 withdrawn from the inside of the slot 13 to remove the circuit breaker body 3.
[0025] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.
[0027] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sealed pole type circuit breaker, comprising a base (1), characterized in that: The top of the base (1) is detachably connected to a working box (2), the top of the working box (2) is plugged with a circuit breaker body (3), a rectangular groove (4) is provided inside the base (1), a straight plate (5) is slidably connected inside the rectangular groove (4), one side of the straight plate (5) is fixedly connected to an elastic member (6), the middle of the straight plate (5) is fixedly connected to a pull rod (7), one end of the pull rod (7) passes through the outside of the base (1), and the straight plate (5) is close to the base ( 1) is fixedly connected to connecting rods (10) at both ends of one side, and the tops of the two connecting rods (10) are fixedly connected to fixing hooks (8) for fixing the base (1) and the working box (2), the top of the base (1) is provided with four sliding grooves (9), the fixing hooks (8) are slidably connected to the sliding grooves (9), and the bottom of the working box (2) is provided with four fixing grooves (15), and the inside of the fixing grooves (15) is provided with second fixing holes (16) used in conjunction with the fixing hooks (8).
2. The sealed pole type circuit breaker according to claim 1, characterized in that: Two insertion rods (12) are fixedly connected at the bottom edge of the circuit breaker body (3), and a first fixing hole (11) for use with a fixing hook (8) is provided inside the insertion rod (12). Two slots (13) for use with the insertion rod (12) are provided at positions corresponding to the insertion rods (12) on the top of the working box (2).
3. The sealed pole type circuit breaker according to claim 2, characterized in that: Limiting plates (14) are symmetrically fixedly connected to both sides of the top edge of the base (1).
4. The sealed pole type circuit breaker according to claim 3, characterized in that: After the insertion rod (12) is inserted into the slot (13), it can extend to the inside of the fixing groove (15), and the first fixing hole (11) and the second fixing hole (16) are concentric.
5. The sealed pole type circuit breaker according to claim 4, characterized in that: One end of the pull rod (7) is fixedly connected with a pull plate.