Auxiliary crimping pipe device for electric power production

Abstract

The utility model discloses an auxiliary crimping pipe device for electric power production, which comprises an inner connection assembly used for wire pipe connection and an outer clamping piece assembly used for wire pipe connection and reinforcement, the inner connection assembly comprises a heat shrink pipe, the outer side of the heat shrink pipe is covered with a coating pipe, the outer side of the coating pipe is provided with a filling material, and the outer clamping piece assembly is provided with an outer clamping piece. The outer clamping piece assembly comprises an upper clamping piece and a lower clamping piece which are matched with each other, the upper clamping piece and the lower clamping piece are rotationally matched through a linkage piece, a first rotating pin is arranged at the rotating position of the upper clamping piece and the lower clamping piece, a threaded bolt is rotationally arranged on the lower clamping piece through a second rotating pin, and a screwing cap is arranged above the upper clamping piece. End protection pieces are arranged at the two ends of the cavities of the upper clamping piece and the lower clamping piece, and plugging caps are arranged at the end protection pieces; according to the utility model, the internal connection assembly realizes close fitting and electrical insulation between the wire pipes, contact resistance is effectively reduced, connection stability and electrical safety are improved, the external clamping piece assembly can flexibly fasten the internal connection assembly, mechanical strength is enhanced, loosening of the connection position is avoided, and protection performance is improved at the same time.

Description

Technical Field

[0001] This utility model belongs to the field of power technology equipment, and in particular relates to an auxiliary crimping pipe device for power production. Background Technology

[0002] In the field of power production and transmission, from large electrical equipment in power plants to various cable lines in urban power grids, conduit connections are a key link in the power transmission system and run through the entire power network system. Whether it is the line connection between transformers and distribution cabinets or the connection between high-voltage transmission lines and end-user lines, stable and reliable electrical connections are achieved with the help of press-fit pipe devices.

[0003] As the power industry develops towards higher voltage, larger capacity, and smarter technologies, higher requirements are placed on the reliability, stability, and safety of line connections. The performance of press-fit pipe devices directly affects the overall operational quality of the power system.

[0004] However, the commonly used power crimping pipe devices on the market have many shortcomings. Specifically, traditional crimping devices are mainly formed by multiple sets of covered tubes. However, during long-term high-load operation, the connection is prone to loosening due to the thermal expansion and contraction of current, mechanical vibration, and changes in ambient temperature and humidity. This leads to a continuous increase in contact resistance, causing local overheating or even burnout, which seriously threatens the safe operation of the power system. At the same time, the lack of effective electrical insulation and waterproof and dustproof design makes it unable to resist the erosion of external moisture, dust, and corrosive gases, which easily causes oxidation and corrosion at the connection, resulting in a decrease in insulation performance and an increased risk of short circuits.

[0005] Therefore, developing an auxiliary pressurized pipe device for power generation is key to solving existing technical problems and ensuring the safe and efficient operation of the power system. Utility Model Content

[0006] The purpose of this invention is to provide an auxiliary crimping device for power production, which addresses the problems of loose connections and poor electrical insulation, waterproofing, and dustproofing performance of existing crimping devices during long-term high-load operation, leading to local overheating, reduced insulation, and increased risk of short circuits.

[0007] The present invention achieves the above objectives through the following technical solution: an auxiliary pipe crimping device for power production, comprising an inner connecting component for pipe connection and an outer clamping component for pipe connection reinforcement;

[0008] The inner connecting component includes a heat shrink tubing, the outside of which is covered with a covering tube, and the outside of the covering tube is covered with a filling material;

[0009] The outer clamping component includes an upper clamping component and a lower clamping component that cooperate with each other. The inner connecting component is placed inside the cavities of the upper clamping component and the lower clamping component. The upper clamping component and the lower clamping component are rotatably engaged by a linkage component, and a first rotating pin is provided at their rotation points. A threaded bolt is rotatably provided on the lower clamping component through a second rotating pin. A screw cap that cooperates with the threaded bolt is provided on the upper clamping component. Both ends of the cavities of the upper clamping component and the lower clamping component are provided with end guards, and each end guard is provided with a plug.

[0010] Furthermore, the filling material is thermally conductive silicone, and glass fibers are uniformly distributed within the thermally conductive silicone.

[0011] Furthermore, the upper and lower clamps have the same specifications, and the cavity cross-section is semi-circular, with a radius 1-3 mm larger than the outer diameter of the covering tube.

[0012] Furthermore, an anti-reverse washer is provided at the mating point of the threaded bolt and the screw cap.

[0013] Furthermore, the end protection component includes an inner ring that is adapted to the inner wall of the upper and lower clamping components' cavities, and the end of the inner ring is provided with a transition ring, the inner diameter of which is provided with a transition chamfer.

[0014] Furthermore, the cap has a conical structure and is made of rubber.

[0015] Beneficial effects: This utility model has a reasonable design, simple and stable structure, and strong practicality, and has the following beneficial effects:

[0016] 1. Excellent electrical performance: The internal connection component combination design allows the heat shrink tubing to fit tightly into the conduit after shrinking, and the covering tube further strengthens the protection. The filling material is thermally conductive silicone with evenly distributed glass fiber, which can not only effectively reduce contact resistance and enhance the stability of electrical connection, but also quickly conduct the heat generated by the current, avoid local overheating, and significantly improve electrical performance.

[0017] 2. High mechanical strength and stability: The upper and lower clamps of the outer clamping assembly are secured by the cooperation of linkage, rotating pin, threaded bolt and screw cap. The semi-circular cavity is adapted to the outer diameter of the covering tube and is equipped with anti-loosening washers to effectively prevent loosening at the connection. At the same time, the upper and lower clamps are of the same specification and the cavity size design is reasonable, so that the device can still maintain a reliable mechanical connection when subjected to external forces such as mechanical vibration and thermal expansion and contraction, thus enhancing the overall mechanical strength.

[0018] 3. Excellent protection performance: The built-in ring, transition ring and transition chamfer design of the end protection component, together with the conical plug made of rubber, form a multi-seal structure that can effectively resist the intrusion of external moisture, dust and corrosive gases, prevent oxidation and corrosion at the connection, reduce the risk of short circuit, and improve the protection performance and service life of the device. In addition, this structural design can also reduce the wear of external impurities on the conduit connection parts, further ensuring the safe and stable operation of the power system. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal connecting component of this utility model.

[0021] Figure 3 This is a schematic diagram of the exploded structure of this utility model.

[0022] In the diagram: 1 - Inner connecting component, 2 - Outer card component;

[0023] 101-Heat shrink tubing, 102-Covered tubing, 103-Filling material, 201-Upper clamp, 202-Lower clamp, 203-Linking component, 204-First rotating pin, 205-Second rotating pin, 206-Threaded bolt, 207-Tightening cap, 208-End protection component, 209-Plug cap;

[0024] 2081 - Built-in ring, 2082 - Transition ring, 2083 - Transition chamfer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1:

[0027] Combination Figure 1-3 An auxiliary crimping pipe device for power generation is shown, including an inner connecting component 1 for pipe connection and an outer clamping component 2 for pipe connection reinforcement.

[0028] The inner connecting component 1 includes a heat shrink tubing 101, which is made of radiation cross-linked polyolefin material. It has excellent insulation properties and a high heat shrinkage rate. After being heated, it can tightly wrap around the surface of the tubing to form a good electrical insulation layer, effectively isolating the external environment from the connection part. The heat shrink tubing 101 is covered with a covering tube 102, which is a stainless steel tube with grooves on its surface. This improves the durability of the device and facilitates the subsequent placement of the filling material 103. The covering tube 102 is covered with a filling material 103, which is thermally conductive silicone with glass fibers evenly distributed inside. The thermally conductive silicone has good thermal conductivity and plasticity, which can fill the gap between the covering tube 102 and the heat shrink tubing 101, ensuring that the two fit tightly. The addition of glass fibers enhances the mechanical strength of the filling material 103, making it less prone to deformation or falling off when subjected to external forces, effectively reducing contact resistance and improving the stability of the electrical connection.

[0029] The outer clamping component 2 includes an upper clamping component 201 and a lower clamping component 202 that cooperate with each other. Both the upper clamping component 201 and the lower clamping component 202 are made of high-strength aluminum alloy, which is lightweight and has high strength. The inner connecting component 1 is placed in the cavity of the upper clamping component 201 and the lower clamping component 202. The upper clamping component 201 and the lower clamping component 202 are rotatably engaged by a linkage component 203. The two ends of the linkage component 203 are respectively rotatably connected to the upper clamping component 201 and the lower clamping component 202 by a first rotating pin 204. A threaded bolt 206 is rotatably provided on the lower clamping component 202 by a second rotating pin 205. A limit part is provided at the end of the threaded bolt 206 near the rotating end of the lower clamping component 202 to prevent the threaded bolt 206 from rotating during the rotation process. After the lower clamp 202 is disengaged, a screw cap 207 that mates with the threaded bolt 206 is provided on the upper clamp 201. The outer circumferential surface of the screw cap 207 is provided with a screwing part, which facilitates the operator to perform screwing operations. By rotating the screw cap 207, it can be locked with the threaded bolt 206, thereby achieving a tight fit between the upper clamp 201 and the lower clamp 202. Both ends of the cavity of the upper clamp 201 and the lower clamp 202 are provided with end guards 208, and each end guard 208 is provided with a plug cap 209, which can fit tightly against the outside of the end guard 208 to form a good sealing effect, effectively preventing the intrusion of external moisture, dust and corrosive gases, and protecting the conduit connection from the influence of the external environment.

[0030] In this embodiment, the upper clamp 201 and the lower clamp 202 have the same specifications, and their cavity cross-sections are in the form of a standard semi-circular structure. This shape design can form a complete circular cavity after closure, which is highly compatible with the shape of the conduit and the inner connecting component 1, ensuring uniform force distribution and avoiding damage to the connection parts caused by local stress concentration. The cavity radius of the upper clamp 201 and the lower clamp 202 is 1-3mm larger than the outer diameter of the covering tube 102. This ensures that the inner connecting component 1 can be smoothly inserted into the cavity, and the upper clamp 201 and the lower clamp 202 can be closed and tightened by tightening the threaded bolt 206, forming an appropriate pre-tightening pressure. At the same time, the pre-tightening force can make the filling material 103 fully fill the gap, enhance the tightness and stability of the electrical connection, and will not excessively squeeze the heat shrink tube 101 and the covering tube 102, preventing them from breaking due to excessive force. At the same time, the reserved small gap can also adapt to the thermal expansion and contraction of the material caused by changes in ambient temperature, avoiding loosening of the connection due to the accumulation of thermal stress, and effectively improving the long-term reliability of the device under complex working conditions.

[0031] In this embodiment, an anti-loosening washer is provided at the mating point of the threaded bolt 206 and the screw cap 207. When the screw cap 207 is tightened, the anti-loosening washer engages with the bottom surface of the screw cap 207 and the surface of the upper clamp 201 respectively, forming an anti-loosening torque, which effectively solves the hidden danger of loosening of the threaded connection due to mechanical vibration during the long-term operation of power equipment.

[0032] In this embodiment, the end protection component 208 includes an inner ring 2081 that is adapted to the inner wall of the cavity of the upper clamp 201 and the lower clamp 202. During installation, a tight fit is achieved through interference fit, forming the first sealing barrier, which effectively prevents external moisture and dust from entering from the connection between the protection component and the clamp. The end of the inner ring 2081 is provided with a transition ring 2082, and the inner diameter of the transition ring 2082 is provided with a transition chamfer 2083. The transition chamfer 2083 adopts an arc transition design. When the conduit is inserted or withdrawn, the smooth arc chamfer can effectively reduce frictional resistance and prevent scratching the conduit insulation layer. At the same time, this rounded transition structure forms a guide surface with the subsequently installed plug cap 209, guiding external rainwater and impurities to slide down along the curved surface, further improving the protective performance.

[0033] In this embodiment, the plug cap 209 has a conical structure. This angle can maximize the reduction of the adhesion area of ​​rainwater, dust and other impurities while ensuring the sealing effect. The plug cap 209 is made of rubber material, which can maintain good elasticity and sealing performance over a wide temperature range, ensuring the safe and stable operation of power production.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An assisted crimping tube device for power production, characterized by: It includes an inner connector assembly (1) for conduit connection and an outer clamp assembly (2) for conduit connection reinforcement. The inner connecting component (1) includes a heat shrink tubing (101), and a covering tube (102) is provided on the outside of the heat shrink tubing (101). A filling material (103) is provided on the outside of the covering tube (102). The outer clamping component (2) includes an upper clamping component (201) and a lower clamping component (202) that cooperate with each other. The inner connecting component (1) is placed in the cavity of the upper clamping component (201) and the lower clamping component (202). The upper clamping component (201) and the lower clamping component (202) are rotatably connected by a linkage component (203), and a first rotating pin (204) is provided at the rotation point. A threaded bolt (206) is rotatably provided on the lower clamping component (202) through a second rotating pin (205). A screw cap (207) that cooperates with the threaded bolt (206) is provided above the upper clamping component (201). End protection components (208) are provided at both ends of the cavity of the upper clamping component (201) and the lower clamping component (202), and a plug cap (209) is provided at each end protection component (208).

2. An assisted crimping tube device for power production according to claim 1, characterized in that: The filling material (103) is thermally conductive silicone, and glass fibers are uniformly distributed within the thermally conductive silicone.

3. An assisted crimping tube device for power production as defined in claim 2, characterized in that: The upper clamp (201) and the lower clamp (202) have the same specifications, and the cavity cross-section is semi-circular, with a radius 1-3 mm larger than the outer diameter of the covering tube (102).

4. An assisted crimping tube device for power production as defined in claim 3, characterized in that: An anti-reverse washer is provided at the mating point of the threaded bolt (206) and the screw cap (207).

5. An assisted crimping tube device for power production as defined in claim 4, characterized in that: The end guard (208) includes an inner ring (2081) that is adapted to the inner wall of the cavity of the upper clamp (201) and the lower clamp (202). The end of the inner ring (2081) is provided with a transition ring (2082), and the inner diameter of the transition ring (2082) is provided with a transition chamfer (2083).

6. An assisted crimping tube device for power production as defined in claim 5, characterized in that: The cap (209) has a conical structure and is made of rubber.

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