Municipal thermal pipe butt joint connector

Abstract

The utility model discloses a municipal thermal pipe butt joint connector which comprises an installation shaft, an auxiliary butt joint assembly and a sealing assembly. The auxiliary butt joint assembly comprises sliding rings, lower pipe hoops, upper pipe hoops and butt joint plates, the lower pipe hoops are slidably connected to the left end and the right end of the mounting shaft through the sliding rings, the upper pipe hoops are hinged to the rear ends of the lower pipe hoops, and the butt joint plates are arranged on the opposite inner side faces of the two lower pipe hoops; the sealing assembly comprises an upper sealing ring and a lower sealing ring, the upper sealing ring and the lower sealing ring are rotationally connected to the middle of the mounting shaft respectively, the upper sealing ring and the lower sealing ring are arranged in a matched mode, the auxiliary butt joint assembly further comprises fastening nuts, and the left end and the right end of the mounting shaft are in threaded connection with the fastening nuts which are symmetrically distributed. According to the municipal thermal pipe butt joint connector, convenient and accurate pipeline butt joint is achieved through the auxiliary butt joint assembly, and efficient sealing is ensured in cooperation with multiple sealing rings and a special pressing structure in the sealing assembly.

Description

Technical Field

[0001] This utility model relates to the field of municipal engineering pipeline connection technology, specifically a municipal heating pipe docking connector. Background Technology

[0002] In modern urban construction, centralized heating systems are important infrastructure for ensuring the comfort of residents' lives and the stable operation of industrial production. With the continuous expansion of urban scale and the increasing demands of people for heating quality, the laying range of municipal heating pipe networks is also continuously expanding. Heating pipe networks need to efficiently and stably deliver the heat generated by heat sources to various user terminals, which places extremely high demands on the connection quality of heating pipes. High-quality heating pipe connections can not only reduce heat loss, but also ensure the long-term safe and stable operation of the heating system, reduce maintenance costs, and have a vital impact on the city's energy supply and the quality of life of residents.

[0003] Currently, the commonly used technologies for connecting municipal heating pipes mainly include welding, flange connection, and thermofusion connection. Welding connection involves melting and fusing the metal at the pipe joint at high temperature to form a unified connection structure. In actual operation, construction personnel use professional welding equipment and select appropriate welding processes according to the material and specifications of the pipes, such as manual electric arc welding and argon arc welding, to ensure the quality and strength of the weld. Flange connection involves installing flanges at the ends of two heating pipes, connecting the two flanges together with bolts, and adding a sealing gasket in the middle to achieve a seal. During construction, it is necessary to accurately align the bolt holes on the flanges and tighten the bolts evenly to ensure the tightness of the connection. Thermofusion connection is mainly suitable for heating pipes made of plastic materials. Heating tools are used to heat the pipe connection parts to a molten state, and then quickly butt them together and apply a certain pressure to connect the pipes into one. During construction, the heating temperature, time, and butt pressure must be strictly controlled to ensure the reliability of the connection.

[0004] In terms of construction efficiency, welding connections require professional welders, demanding high skill levels and involving lengthy welding processes. This is especially problematic during large-scale pipeline construction, which can severely impact construction progress. Flange connections, on the other hand, involve cumbersome bolt tightening, requiring multiple people to work together, and aligning the flange bolt holes also takes considerable time. For thermofusion connections, the heating and cooling times are relatively long, leading to low construction efficiency. Regarding sealing performance, the sealing gaskets in flange connections gradually deteriorate after long-term exposure to thermal media, temperature changes, and pipeline vibrations, increasing the risk of leakage. Improper operation during heating or butt welding in thermofusion connections can also result in inadequate sealing at the connection points, affecting the stability and safety of heat transfer. Therefore, we propose a municipal heating pipe butt connector. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a municipal heating pipe connection connector, which improves the efficiency of municipal heating pipe connection construction, enhances the sealing performance, and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a municipal heating pipe docking connector, including a mounting shaft, an auxiliary docking assembly, and a sealing assembly;

[0007] Auxiliary docking assembly: It includes a slip ring, a lower pipe clamp, an upper pipe clamp, and a docking plate. The left and right ends of the mounting shaft are slidably connected to the lower pipe clamps through the slip rings. The rear ends of the lower pipe clamps are hinged to the upper pipe clamps. The opposite inner surfaces of the two lower pipe clamps are provided with docking plates.

[0008] Sealing assembly: It includes an upper sealing ring and a lower sealing ring. The upper sealing ring and the lower sealing ring are rotatably connected to the middle part of the mounting shaft. The upper sealing ring and the lower sealing ring are configured to cooperate. The auxiliary docking assembly enables convenient and precise pipe docking. The multiple sealing rings and special compression structure in the sealing assembly ensure efficient sealing.

[0009] Furthermore, the auxiliary docking assembly also includes fastening nuts, and both ends of the mounting shaft are threaded with symmetrically distributed fastening nuts. The slip rings are all configured to cooperate with the adjacent fastening nuts in the lateral direction, which facilitates the adjustment of the position of the two heat pipes.

[0010] Furthermore, the sealing assembly also includes rubber sealing rings, and the inner arc surfaces of both the upper and lower sealing rings are provided with rubber sealing rings to ensure a seal.

[0011] Furthermore, the sealing assembly also includes a soft rubber sealing ring, with a soft rubber sealing ring in the middle of each rubber sealing ring, used to fill the gap between the joints of the two heat pipes.

[0012] Furthermore, the sealing assembly also includes a pressing groove, a fastening wire, and a strip-shaped opening. The upper and lower sealing rings are both provided with pressing grooves, and a fastening wire is provided between the two pressing grooves. The fastening wire contacts the soft rubber sealing ring. The upper end of the upper sealing ring is provided with a strip-shaped opening, which is connected to the pressing groove on the upper side. The upper end of the fastening wire is exposed through the strip-shaped opening, pressing the soft rubber sealing ring.

[0013] Furthermore, the sealing assembly also includes a connecting plate and a bolt. The outer arc face of both the upper and lower sealing rings is provided with a connecting plate, and a connecting hole is provided in the middle of the connecting plate. The lower end of the bolt passes through the two connecting holes in sequence, and a nut is threaded onto the lower end of the bolt to facilitate the connection of the upper and lower sealing rings.

[0014] Furthermore, both the lower and upper pipe clamps are provided with fastening plates on their front sides, and the two adjacent fastening plates are fitted together to facilitate the connection of the upper and lower pipe clamps.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This municipal heating pipe docking connector has the following advantages:

[0016] 1. The auxiliary docking assembly is ingeniously designed. The sliding ring on the mounting shaft is slidably connected to the lower pipe clamp, making it easy to adjust the position of the two heating pipes. The docking plate ensures that the two heating pipes are accurately positioned during docking. The upper and lower pipe clamps are hinged together to firmly hold the heating pipes. They are further secured by the fastening plate and fastening nut. The entire docking process is simple to operate and can ensure the accuracy of docking, which greatly improves construction efficiency. Compared with traditional docking methods, there is no need to repeatedly adjust the pipe position, reducing construction time and labor costs.

[0017] 2. The sealing assembly adopts a multi-seal structure, combining rubber sealing rings and soft rubber sealing rings. This effectively fills the tiny gaps between the heat pipe and the sealing ring, as well as at the joint of the two heat pipes. By connecting the upper and lower sealing rings with bolts and tightening them, the fit between the sealing ring and the heat pipe is enhanced, preventing the sealing ring from loosening. In addition, the special design of the fastening wire and the compression groove applies greater pressure to the soft rubber sealing ring when the wire is tightened, filling the gap between the joint of the two heat pipes, further enhancing the sealing performance, effectively preventing the leakage of heat medium, and ensuring the stability and safety of heat transmission. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the rear structure of the present invention;

[0020] Figure 3 This is a partial structural schematic diagram of the auxiliary connection component of this utility model;

[0021] Figure 4 This is a partial structural schematic diagram of the sealing assembly of this utility model;

[0022] Figure 5 This is a partial cross-sectional structural diagram of the sealing assembly of this utility model;

[0023] Figure 6 This is an enlarged structural diagram of point A of this utility model.

[0024] In the diagram: 1. Mounting shaft, 2. Auxiliary docking assembly, 21. Slip ring, 22. Lower pipe clamp, 23. Upper pipe clamp, 24. Dating plate, 25. Fastening nut, 3. Sealing assembly, 31. Upper sealing ring, 32. Lower sealing ring, 33. Rubber sealing ring, 34. Soft rubber sealing ring, 35. Pressing groove, 36. Fastening wire, 37. Strip opening, 38. Connecting plate, 39. Bolt, 4. Fastening plate. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 This embodiment provides a technical solution: a municipal heating pipe docking connector, including a mounting shaft 1, an auxiliary docking assembly 2, and a sealing assembly 3;

[0027] Auxiliary docking assembly 2 includes a slip ring 21, a lower pipe clamp 22, an upper pipe clamp 23, and a docking plate 24. Both ends of the mounting shaft 1 are slidably connected to the lower pipe clamp 22 via the slip ring 21. The rear ends of the lower pipe clamp 22 are hinged to the upper pipe clamp 23. The inner surfaces of the two lower pipe clamps 22 are each provided with a docking plate 24. The auxiliary docking assembly 2 also includes fastening nuts 25. Both ends of the mounting shaft 1 are threaded with symmetrically distributed fastening nuts 25. The slip ring 21 is configured to cooperate with the laterally adjacent fastening nuts 25. The front surfaces of the lower pipe clamp 22 and the upper pipe clamp 23 are each provided with a fastening plate 4. The two adjacent fastening plates 4 are configured to cooperate with each other. When connecting two municipal heating pipes, the auxiliary docking assembly 2 is first used for initial positioning and... The lower pipe clamps 22, which are slidably connected to the left and right ends of the mounting shaft 1 via slip rings 21, can slide axially along the mounting shaft 1. The two heat pipes to be connected are placed in the two lower pipe clamps 22 respectively. Then, the two heat pipes are aligned on the docking plate 24. Next, the upper pipe clamp 23, which is hinged to the rear end of the lower pipe clamp 22, is rotated to engage with the lower pipe clamp 22 and hold the heat pipes tightly. Then, the two fastening plates 4 are tightly connected using external screws and nuts. Then, the fastening nut 25 is rotated. When the fastening nut 25 rotates, it will squeeze the adjacent slip rings 21 and generate axial displacement on the mounting shaft 1, causing the two heat pipes to move closer to each other until they contact, thus completing the pipe docking positioning, assisting docking, and ensuring the accuracy of the docking of the two heat pipes.

[0028] Sealing assembly 3 includes an upper sealing ring 31 and a lower sealing ring 32. The upper sealing ring 31 and the lower sealing ring 32 are rotatably connected to the middle part of the mounting shaft 1. The upper sealing ring 31 and the lower sealing ring 32 are fitted together. Sealing assembly 3 also includes a rubber sealing ring 33. The inner arc surface of the upper sealing ring 31 and the lower sealing ring 32 are provided with rubber sealing rings 33. Sealing assembly 3 also includes a soft rubber sealing ring 34. The middle part of the rubber sealing ring 33 is provided with a soft rubber sealing ring 34. Sealing assembly 3 also includes a pressing groove 35, a fastening wire 36, and a strip-shaped opening 37. The upper sealing ring 31 and the lower sealing ring 32 are both provided with pressing grooves 35. A fastening device is provided between the two pressing grooves 35. The wire 36 is fastened to contact the soft rubber sealing ring 34. The upper end of the upper sealing ring 31 has a slot 37, which communicates with the upper pressing groove 35. The upper end of the fastening wire 36 is exposed above the slot 37. The sealing assembly 3 also includes a connecting plate 38 and bolts 39. Connecting plates 38 are provided on the outer arc face of both the upper sealing ring 31 and the lower sealing ring 32. Connecting holes are provided in the middle of each connecting plate 38. The lower end of the bolt 39 passes through two connecting holes in sequence, and a nut is threaded onto the lower end of the bolt 39. After the pipe connection and positioning are completed, the sealing assembly 3 begins to function, rotatably connecting the upper sealing ring 31 and the lower sealing ring 32 in the middle of the mounting shaft 1. After the pipe connection is completed, the upper sealing ring 31 and the lower sealing ring 32 are rotated around the mounting shaft 1 to fit against the joint of the two heat pipes. The rubber sealing rings 33 on the inner arc surfaces of the upper sealing ring 31 and the lower sealing ring 32 directly contact the surface of the heat pipes. Utilizing the good elasticity of the rubber, the tiny gaps between the heat pipes and the sealing rings are initially filled to prevent leakage of the heat medium. The connection is made by bolts 39 and nuts. When the bolts 39 are tightened, an inward squeezing force is generated on the upper sealing ring 31 and the lower sealing ring 32, further ensuring a tight fit between the upper and lower sealing rings, preventing the sealing rings from loosening, and ensuring the stability of the sealing effect. Then, the fastening wire 36 is passed through the strip... The left end of the opening 37 is inserted into the upper clamping groove 35, and then a pushing force is applied to the fastening wire 36. The fastening wire 36 gradually slides down the upper clamping groove 35 and enters the lower clamping groove 35. It is continuously pushed along the back side of the lower clamping groove 35 and into the back side of the upper clamping groove 35 until it enters the interior of the strip opening 37 from the top of the upper clamping groove 35. Then, the worker twists and tightens the two ends of the fastening wire 36 that are protruding from the strip opening 37. The tension generated by the wire will put greater pressure on the soft rubber sealing ring 34, so that it fills the gap between the two heat pipes and enhances the sealing performance. Multiple sealing rings and special clamping structure ensure efficient sealing.

[0029] The working principle of the municipal heating pipe connector provided by this utility model is as follows: When connecting two municipal heating pipes, the auxiliary docking assembly 2 is first used for preliminary positioning and docking. The lower pipe clamps 22, which are slidably connected to the left and right ends of the mounting shaft 1 through slip rings 21, can slide axially along the mounting shaft 1. The two heating pipes to be connected are placed in the two lower pipe clamps 22 respectively. Then, the positions of the two heating pipes on the docking plate 24 are made the same. Next, the upper pipe clamp 23, which is hinged to the rear end of the lower pipe clamp 22, is rotated to cooperate with the lower pipe clamp 22 and tighten the connection. The two heat pipes are then tightly connected using external screws and nuts. The fastening nut 25 is then rotated, causing it to compress the adjacent slip ring 21, resulting in axial displacement on the mounting shaft 1. This causes the two heat pipes to move closer together until they contact each other. After the pipe connection is complete, the sealing assembly 3 begins to function. The upper sealing ring 31 and lower sealing ring 32, rotatably connected in the middle of the mounting shaft 1, are rotated around the mounting shaft 1 after the pipe connection is completed, so that they fit against the joint of the two heat pipes. The rubber sealing rings 33, located on the inner arc surfaces of the upper and lower sealing rings 31 and 32, directly contact the surface of the heat pipe. Utilizing the good elasticity of the rubber, they initially fill the tiny gaps between the heat pipe and the sealing rings, preventing leakage of the heat medium. Connected by bolts 39 and nuts, tightening the bolts 39 generates an inward compressive force on the upper and lower sealing rings 31 and 32, further ensuring a tight fit between the upper and lower sealing rings, preventing loosening, and ensuring the stability of the sealing effect. Subsequently, the fastening wire 36 is inserted through the left end of the slot 37 into the upper clamping groove 35. Then, a pushing force is applied to the fastening wire 36, and the fastening wire 36 gradually slides down from the upper clamping groove 35 into the lower clamping groove 35. It is continuously pushed along the rear side of the lower clamping groove 35 into the rear side of the upper clamping groove 35 until it enters the interior of the strip opening 37 from the upper end of the upper clamping groove 35. Then, the worker twists and tightens the two ends of the fastening wire 36 that are protruding from the strip opening 37. The tension generated by the wire will put greater pressure on the soft rubber sealing ring 34, so that it fills the gap between the two heat pipes and enhances the sealing performance.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A municipal heating pipe docking connector, comprising a mounting shaft (1), characterized in that: It also includes an auxiliary docking assembly (2) and a sealing assembly (3); Auxiliary docking assembly (2): It includes a slip ring (21), a lower pipe clamp (22), an upper pipe clamp (23) and a docking plate (24). The left and right ends of the mounting shaft (1) are slidably connected to the lower pipe clamp (22) through the slip ring (21). The rear end of the lower pipe clamp (22) is hinged to the upper pipe clamp (23). The two lower pipe clamps (22) are provided with docking plates (24) on their opposite inner sides. Sealing assembly (3): It includes an upper sealing ring (31) and a lower sealing ring (32). The middle part of the mounting shaft (1) is rotatably connected to the upper sealing ring (31) and the lower sealing ring (32), and the upper sealing ring (31) and the lower sealing ring (32) are configured to cooperate.

2. A municipal heat pipe butt connector according to claim 1, characterised in that: The auxiliary docking assembly (2) also includes fastening nuts (25). Both ends of the mounting shaft (1) are threaded with symmetrically distributed fastening nuts (25). The slip rings (21) are all configured to cooperate with the adjacent fastening nuts (25) laterally.

3. A municipal heat pipe butt connector according to claim 1, wherein: The sealing assembly (3) also includes a rubber sealing ring (33), and the inner arc surfaces of the upper sealing ring (31) and the lower sealing ring (32) are both provided with rubber sealing rings (33).

4. A municipal heat pipe butt connector according to claim 3, wherein: The sealing assembly (3) also includes a soft rubber sealing ring (34), and the middle part of each rubber sealing ring (33) is provided with a soft rubber sealing ring (34).

5. A municipal heat pipe butt connector according to claim 4, wherein: The sealing assembly (3) further includes a pressing groove (35), a fastening wire (36), and a strip opening (37). The upper sealing ring (31) and the lower sealing ring (32) are both provided with pressing grooves (35). A fastening wire (36) is provided between the two pressing grooves (35). The fastening wire (36) is in contact with the soft rubber sealing ring (34). The upper end of the upper sealing ring (31) is provided with a strip opening (37). The strip opening (37) is connected to the pressing groove (35) on the upper side. The upper end of the fastening wire (36) is exposed outside the strip opening (37).

6. A municipal heat pipe butt connector according to claim 1, wherein: The sealing assembly (3) also includes a connecting plate (38) and a bolt (39). The outer arc face of the upper sealing ring (31) and the lower sealing ring (32) are provided with a connecting plate (38). The middle part of the connecting plate (38) is provided with a connecting hole. The lower end of the bolt (39) passes through the two connecting holes in sequence. The lower end of the bolt (39) is threaded with a nut.

7. A municipal heat pipe docking connector according to claim 1, wherein: The front sides of both the lower pipe clamp (22) and the upper pipe clamp (23) are provided with fastening plates (4), and the two adjacent fastening plates (4) are fitted together.

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