Spring barrel cover for power distribution control equipment
By introducing an L-shaped connecting rod and a pressing rod structure into the spring cylinder protective cover of the power distribution control equipment, the problem of complex disassembly in the existing technology is solved, realizing the convenience of easy disassembly and maintenance, and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HENGGAO PRECISION FORMING TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-03
AI Technical Summary
The process of removing the spring cylinder protective cover of existing power distribution control equipment is cumbersome and complicated, which increases the difficulty of maintenance and may cause damage to the protective cover or spring cylinder.
A protective cover for a spring cylinder of a power distribution control device was designed. It uses an L-shaped connecting rod to snap into the connecting hole, combined with the structure of a pressing rod and a movable base, to achieve easy disassembly and facilitate inspection or replacement of the internal spring.
It simplifies the disassembly process of the spring cylinder protective cover, reduces maintenance difficulty, reduces the risk of damage to the protective cover and spring cylinder, and extends the service life of the equipment.
Smart Images

Figure CN224458958U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shock absorption structure technology, specifically to a spring cylinder protective cover for power distribution control equipment. Background Technology
[0002] Power distribution control equipment is a general term for equipment in a power system, including high-voltage distribution cabinets, generators, transformers, power lines, circuit breakers, low-voltage switchgear, distribution panels, switch boxes, and control boxes. A spring cylinder is a component that may be used in power distribution control equipment. It typically contains a spring and other structures and can be used for energy storage, buffering, and providing power. The protective cover of the spring cylinder is designed to protect it, preventing dust, moisture, and foreign objects from entering and damaging the spring cylinder due to external environmental factors, thus extending its service life and ensuring the normal operation of the power distribution control equipment. After prolonged use, the spring inside the spring cylinder gradually weakens, requiring inspection or replacement. Existing protective cover designs often make disassembly cumbersome and complex, increasing maintenance difficulty and potentially causing damage to the cover or spring cylinder due to improper operation. Utility Model Content
[0003] The purpose of this utility model is to provide a protective cover for the spring cylinder of power distribution control equipment to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A protective cover for a spring cylinder of a power distribution control equipment includes a spring cylinder body, a cover body on the top of the spring cylinder body, a telescopic rod inside the spring cylinder body, the top end of the telescopic rod penetrating the center of the cover body, and connecting components on both the top and inner ends of the cover body.
[0006] The connecting assembly includes a pressing rod penetrating the top of the cover. An outer shell is fixedly connected to the inner wall of the cover. A movable plate is fixedly connected to the outer wall of the pressing rod. The top of the movable plate contacts the top of the inner side of the cover. A telescopic spring is sleeved on the outside of the pressing rod. A movable seat is provided inside the outer shell. A trapezoidal groove is opened on the top of the movable seat. A sliding rod passes through the inside of the movable seat. The two ends of the sliding rod are fixedly connected to the inner walls of the outer shell on both sides respectively. A return spring is sleeved on one side of the sliding rod. An L-shaped connecting rod is fixedly connected to the bottom of the movable seat away from the return spring. Connecting holes are symmetrically opened on the top of the inner walls of the spring cylinder on both sides.
[0007] As a preferred embodiment of this utility model, the bottom end of the pressing rod is inclined, the bottom end of the pressing rod penetrates the top of the outer shell and extends into the interior of the trapezoidal groove, and the bottom end of the pressing rod is slidably connected to the inner wall of the movable seat.
[0008] In a preferred embodiment of this utility model, the top end of the telescopic spring is fixedly connected to the bottom of the movable plate, and the bottom end of the telescopic spring is fixedly connected to the top of the outer casing.
[0009] As a preferred embodiment of this utility model, the other end of the L-shaped connecting rod extends to the outside of the outer shell and is respectively engaged with the connecting hole, and the two sets of connecting components are symmetrically arranged.
[0010] As a preferred embodiment of this utility model, a sealing ring is provided on the top of the cover, and the inner wall of the sealing ring is in close contact with the surface of the telescopic rod.
[0011] As a preferred embodiment of this utility model, a protruding ring is fixedly connected to the top of the spring cylinder, and an annular groove is provided at the bottom of the cover, with the top end of the protruding ring extending into the interior of the annular groove.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, the spring cylinder and the cover can be connected by an L-shaped connecting rod that is snapped into the inside of the connecting hole. The L-shaped connecting rod can be moved by a pressing rod and a moving seat, making it convenient to disassemble the cover. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the connection between the spring cylinder and the cover of this utility model;
[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model.
[0017] In the diagram: 1. Spring cylinder; 2. Telescopic rod; 3. Cover; 4. Sealing ring; 5. Connecting assembly; 6. Protruding ring; 7. Annular groove; 501. Pressing rod; 502. Outer shell; 503. Moving plate; 504. Telescopic spring; 505. Moving seat; 506. Trapezoidal groove; 507. Slide rod; 508. Return spring; 509. L-shaped connecting rod; 510. Connecting hole. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0019] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.
[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0022] For examples, please refer to Figure 1-3 This utility model provides a technical solution:
[0023] A protective cover for a spring cylinder of a power distribution control device includes a spring cylinder body 1, a cover body 3 on the top of the spring cylinder body 1, a telescopic rod 2 inside the spring cylinder body 1, the top end of the telescopic rod 2 penetrating the center of the cover body 3, and connecting components 5 at both ends of the top and inner side of the cover body 3. The connecting components 5 include a pressing rod 501 penetrating the top of the cover body 3, a housing 502 fixedly connected to the inner wall of the cover body 3, and a movable plate 503 fixedly connected to the outer wall of the pressing rod 501. The top of the movable plate 503 contacts the top of the inner side of the cover body 3. A telescopic spring 504 is sleeved on the outside of the outer shell 501. A movable seat 505 is provided inside the outer shell 502. A trapezoidal groove 506 is opened on the top of the movable seat 505. A slide rod 507 passes through the inside of the movable seat 505. The two ends of the slide rod 507 are fixedly connected to the inner walls of the two sides of the outer shell 502 respectively. A return spring 508 is sleeved on one side of the slide rod 507. An L-shaped connecting rod 509 is fixedly connected to the bottom of the movable seat 505 away from the return spring 508. Connecting holes 510 are symmetrically opened on the top of the two sides of the inner wall of the spring cylinder 1.
[0024] The bottom end of the pressing rod 501 is inclined and extends through the top of the outer shell 502 and into the interior of the trapezoidal groove 506. The bottom end of the pressing rod 501 is slidably connected to the inner wall of the movable seat 505. The top end of the telescopic spring 504 is fixedly connected to the bottom of the movable plate 503. The bottom end of the telescopic spring 504 is fixedly connected to the top of the outer shell 502. The other end of the L-shaped connecting rod 509 extends to the outside of the outer shell 502 and is respectively engaged with the connecting hole 510. The two sets of connecting components 5 are symmetrically arranged. A sealing ring 4 is provided on the top of the cover 3. The inner wall of the sealing ring 4 is in close contact with the surface of the telescopic rod 2. A protruding ring 6 is fixedly connected to the top of the spring cylinder 1. An annular groove 7 is opened at the bottom of the cover 3. The top end of the protruding ring 6 extends into the interior of the annular groove 7.
[0025] The working process of this utility model is as follows: During use, the protruding ring 6 and the annular groove 7 form a concave-convex shape, which improves the sealing between the spring cylinder 1 and the cover 3. The spring cylinder 1 and the cover 3 are connected by an L-shaped connecting rod 509 that is snapped into the inside of the connecting hole 510. The spring cylinder is installed inside the distribution box to buffer and dampen shocks. However, after a period of use, the elasticity of the internal spring will gradually weaken and it will not be able to dampen the distribution box well. By pressing the two pressing rods 501 downwards, the two pressing rods 501, together with the trapezoidal groove 506, can push the two moving seats 505 to the middle, thereby causing the two L-shaped connecting rods 509 to leave the inside of the connecting hole 510. The cover 3 can then be removed to inspect or replace the internal spring.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A spring drum protection cover for a power distribution control device comprising a spring drum body (1), characterized in that: The top of the spring cylinder (1) is provided with a cover (3), and the inside of the spring cylinder (1) is provided with a telescopic rod (2). The top end of the telescopic rod (2) passes through the center of the cover (3). The top and both ends of the cover (3) are provided with connecting components (5). The connecting assembly (5) includes a pressing rod (501) penetrating the top of the cover (3). A housing (502) is fixedly connected to the inner wall of the cover (3). A movable plate (503) is fixedly connected to the outer wall of the pressing rod (501). The top of the movable plate (503) contacts the top of the inner side of the cover (3). A telescopic spring (504) is sleeved on the outside of the pressing rod (501). A movable seat (505) is provided inside the housing (502). A trapezoidal groove (506) is provided at the top. A slide rod (507) runs through the interior of the movable seat (505). The two ends of the slide rod (507) are fixedly connected to the inner walls of the outer shell (502) on both sides respectively. A return spring (508) is sleeved on one side surface of the slide rod (507). An L-shaped connecting rod (509) is fixedly connected to the bottom of the movable seat (505) away from the return spring (508). Connecting holes (510) are symmetrically provided at the top of both sides of the inner wall of the spring cylinder (1).
2. The power distribution control device spring barrel protective cover of claim 1, wherein: The bottom end of the pressing rod (501) is inclined. The bottom end of the pressing rod (501) penetrates the top of the outer shell (502) and extends into the interior of the trapezoidal groove (506). The bottom end of the pressing rod (501) is slidably connected to the inner wall of the movable seat (505).
3. The power distribution control device spring barrel protective cover of claim 1, wherein: The top end of the telescopic spring (504) is fixedly connected to the bottom of the movable plate (503), and the bottom end of the telescopic spring (504) is fixedly connected to the top of the outer shell (502).
4. The power distribution control device spring barrel protective cover of claim 1, wherein: The other end of the L-shaped connecting rod (509) extends to the outside of the outer shell (502) and is engaged with the connecting hole (510). The two sets of connecting components (5) are symmetrically arranged.
5. The power distribution control device spring barrel protective cover of claim 1, wherein: A sealing ring (4) is provided on the top of the cover (3), and the inner wall of the sealing ring (4) is in close contact with the surface of the telescopic rod (2).
6. The power distribution control device spring barrel protective cover of claim 1, wherein: The top of the spring cylinder (1) is fixedly connected with a protruding ring (6), and the bottom of the cover (3) is provided with an annular groove (7). The top of the protruding ring (6) extends into the interior of the annular groove (7).