Quick connection type copper pipe

Abstract

This utility model provides a quick-connect copper pipe, belonging to the field of copper pipe connection technology. It mainly addresses the problems of low connection efficiency and easy loosening of connections due to mechanical vibration in existing copper pipe connections. The device includes a first copper pipe and a second copper pipe. The first copper pipe has a connecting groove and two sets of limiting grooves at one end. The second copper pipe has a connecting tube at one end, with two sets of limiting protrusions symmetrically arranged on the connecting tube. Two sets of first fixing holes are respectively provided on both sides of the connecting tube. Two sets of mounting frames and two sets of second fixing holes are symmetrically arranged on both sides of the first copper pipe. Fixing components are provided in both mounting frames, and collars are provided in both sets of second fixing holes. Through the cooperation of the fixing components, the pipe connection process does not require professional tools, improving the connection efficiency of the copper pipe. Furthermore, the cooperation between the connecting tube and the connecting groove, along with the addition of two sets of sealing rings, reduces the impact of external mechanical vibration along the axial direction of the copper pipe on the reliability of the connection.

Description

Technical Field

[0001] This utility model relates to the field of copper pipe connection technology, and more specifically, to a quick-connect copper pipe. Background Technology

[0002] Copper pipes, with their excellent thermal conductivity, corrosion resistance, and plasticity, play a vital role in refrigeration and air conditioning, water and gas supply, hydraulic systems, and industrial equipment piping. Reliable pipe connections are the foundation for the safe and efficient operation of systems, directly affecting energy efficiency, operating costs, and long-term stability. For a long time, while traditional copper pipe connection methods have met basic functional requirements, their inherent technical limitations have become increasingly apparent in engineering practice. Traditional copper pipe connections are inefficient and prone to loosening due to mechanical vibration.

[0003] On the one hand, traditional connection methods such as brazing or flaring and tightening with nuts have strict requirements on the operating environment and professional skills. The brazing process not only requires a high-temperature heat source, flux and skilled welding techniques, but also involves the risks of open flame operations, strict fire prevention in the work area, and the tedious process of thoroughly cleaning the welding slag and residual flux after welding to prevent corrosion. Even the relatively simple flaring and nut tightening requires precise flaring quality, thread alignment and tightening, and Teflon tape wrapping. The installation process also cannot achieve the ideal efficiency and convenience.

[0004] On the other hand, during long-term use, it is susceptible to various factors, which may lead to a decline in the sealing performance of the connection or a loosening of the structure, posing a potential risk to the operation of the system. The inherent mechanical vibration of the pipeline system will continue to act on the connection, and under long-term vibration, the clamping force at the pipeline connection may gradually decrease.

[0005] Therefore, existing copper pipes need improvement in terms of connection efficiency and reliability at the connection points. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides a quick-connect copper pipe to solve the technical issues of low connection efficiency and easy loosening of the connection due to mechanical vibration in the existing copper pipe technology.

[0007] The purpose and function of this utility model of a quick-connect copper pipe are achieved by the following specific technical means:

[0008] A quick-connect copper pipe includes a first copper pipe and a second copper pipe. One end of the first copper pipe is provided with a connecting groove and two sets of limiting grooves. One end of the second copper pipe is provided with a connecting pipe. Two sets of limiting protrusions are symmetrically provided on the connecting pipe. Two sets of first fixing holes are provided on both sides of the connecting pipe. One end of the first copper pipe is connected to the second copper pipe.

[0009] Two sets of mounting frames and two sets of second fixing holes are symmetrically arranged on both sides of the first copper tube. Fixing components are provided in both sets of mounting frames, and collars are provided in both sets of second fixing holes.

[0010] Both sets of fixing components include a locking block, a limiting member, and a first spring.

[0011] According to a preferred embodiment, the connecting pipe is engaged in the connecting groove, and the two sets of limiting protrusions are respectively engaged in the two sets of limiting grooves;

[0012] The positions of the two sets of first fixing holes correspond to the positions of the two sets of second fixing holes, respectively.

[0013] According to a preferred embodiment, one end of each of the two sets of collars is fixedly connected to one of the two sets of the first springs, and the other end of each of the two sets of the first springs is fixedly connected to one of the two sets of the limiting members. One end of each of the two sets of limiting members is in contact with the locking block.

[0014] According to a preferred embodiment, one end of each of the two sets of limiting members passes through the first fixing hole and the second fixing hole.

[0015] According to a preferred embodiment, mounting holes are provided on both sides of the two sets of card blocks, and a second spring is installed in each of the four sets of mounting holes. One end of each of the four sets of second springs is connected to a limit rod.

[0016] Both sets of mounting frames have through holes on both sides, and all four sets of through holes have pushers inserted into them. The end of each of the four sets of pushers near the locking block is in contact with the limiting rod.

[0017] According to a preferred embodiment, a first sealing ring is provided inside the second copper tube, and a second sealing ring is fitted inside the connecting groove, wherein the second sealing ring has the same shape and size as the connecting groove.

[0018] One end of the first copper tube is in contact with the first sealing ring, and one end of the connecting tube is in contact with the second sealing ring.

[0019] According to a preferred embodiment, both sets of the card blocks have a sloped bottom.

[0020] Based on the above aspects, the embodiments of this application achieve the following:

[0021] 1. When connecting the first copper pipe and the second copper pipe, align the two sets of limiting protrusions on the connecting pipe with the two sets of limiting grooves respectively, insert the connecting pipe into the connecting groove, and initially connect the first copper pipe and the second copper pipe. Then, press the limiting rods on both sides of the clamp into the mounting hole. At this time, the second spring is compressed, pushing the clamp into the mounting frame. The inclined surface at the bottom of the clamp allows the clamp to push the limiting member into the second fixing hole. At this time, the first spring is compressed, and one end of the limiting member is also inserted into the first fixing hole, so that the connecting pipe is restricted in the connecting groove, and the first copper pipe and the second copper pipe are fixed. The clamp continues to be pushed into the mounting frame. When the limiting rod is aligned with the through hole, the second spring will rebound, pushing the limiting rod into the through hole, so that the clamp is fixed in the mounting frame. The installation process does not require professional tools, reducing the difficulty of pipe connection and improving the connection efficiency of copper pipes.

[0022] 2. Inserting the connecting pipe into the connecting groove increases the axial contact area between the first and second copper pipes. The first and second sealing rings also have a certain degree of elasticity, which improves the sealing performance of the pipe connection and buffers some of the vibrations along the pipe axis generated by external machinery, thereby reducing the impact of external mechanical vibrations on the reliability of the pipe connection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a quick-connect copper pipe provided in an embodiment of this utility model;

[0024] Figure 2 This is an exploded view of a quick-connect copper pipe provided in an embodiment of this utility model;

[0025] Figure 3 yes Figure 2 Enlarged view of region a in the middle;

[0026] Figure 4 This is a right view of a quick-connect copper pipe provided in an embodiment of this utility model;

[0027] Figure 5 yes Figure 4 Cross-sectional view of AA in the middle;

[0028] Figure 6 yes Figure 5 Enlarged view of region b in the middle;

[0029] Figure 7 This is a schematic diagram of the structure of the first copper tube in a quick-connect copper tube according to an embodiment of the present utility model.

[0030] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0031] 100. First copper tube; 101. Second copper tube; 102. Connecting groove; 103. Limiting groove; 104. Connecting pipe; 105. Limiting protrusion; 106. First fixing hole; 107. Mounting frame; 108. Second fixing hole; 109. Collar; 110. Locking block; 111. Limiting component; 112. First spring; 113. Second spring; 114. Limiting rod; 115. Pushing component; 116. First sealing ring; 117. Second sealing ring. Detailed Implementation

[0032] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0033] As attached Figure 1 To be continued Figure 7 As shown:

[0034] A quick-connect copper pipe includes a first copper pipe 100 and a second copper pipe 101. The second copper pipe 101 is provided at one end of the first copper pipe 100. The first copper pipe 100 has a connecting groove 102 and two sets of limiting grooves 103 at one end. The two sets of limiting grooves 103 are symmetrically distributed on both sides of the connecting groove 102. A connecting pipe 104 is provided at one end of the second copper pipe 101. The size of the connecting groove 102 is adapted to the connecting pipe 104. The length of the connecting pipe 104 matches the depth of the connecting groove 102, so that the connecting pipe 104 can be inserted into the connecting groove 102. Two sets of limiting protrusions 105 are symmetrically provided on the connecting pipe 104. The positions of the limiting grooves 103 correspond to the limiting protrusions 105 on the connecting pipe 104. The size of the limiting protrusions 105 matches the limiting grooves 103. Two sets of first fixing holes 106 are provided on both sides of the connecting pipe 104.

[0035] Two sets of mounting frames 107 and two sets of second fixing holes 108 are symmetrically arranged on both sides of the first copper tube 100. Fixing components are provided in both sets of mounting frames 107. The fixing components are used to fix the first copper tube 100 and the second copper tube 101 to ensure the stability of the connection between the two. A collar 109 is provided in both sets of second fixing holes 108.

[0036] Both sets of fixing components include a locking block 110, a limiting member 111, and a first spring 112. The locking block 110 can slide up and down within the mounting frame 107.

[0037] It should be noted that the limiting protrusion 105 and the limiting groove 103 are used to initially position the connection between the connecting pipe 104 and the connecting groove 102, and at the same time, they can prevent the connection between the first copper pipe 100 and the second copper pipe 101 from rotating, thus ensuring the stability of the connection.

[0038] One end of each of the two sets of collars 109 is fixedly connected to one of the two sets of first springs 112, and the other end of each of the two sets of first springs 112 is fixedly connected to one of the two sets of limiting members 111. One end of each of the two sets of limiting members 111 is in contact with the locking block 110. When the locking block 110 moves, it can push the limiting member 111 to move accordingly.

[0039] Both sets of limiting members 111 have one end passing through the first fixing hole 106 and the second fixing hole 108, which can fix the connecting pipe 104 in the connecting groove 102, and the first copper pipe 100 and the second copper pipe 101 are fixed accordingly.

[0040] Both sides of the two sets of locking blocks 110 are provided with mounting holes. The size of the mounting holes is adapted to the second spring 113, which can provide a stable mounting space for the second spring 113. The second spring 113 is installed in each of the four sets of mounting holes. One end of each of the four sets of second spring 113 is connected to a limit rod 114. When the second spring 113 is not under force, it pushes the limit rod 114 to reset.

[0041] Both sides of the two sets of mounting frames 107 are provided with through holes, and the positions of the through holes correspond to the limiting rods 114. Pushing members 115 are inserted into the four sets of through holes. One end of the pushing member 115 contacts the limiting member 111. The pushing member 115 can be used to push the limiting rod 114 into the mounting hole when disassembling the copper pipe, so that the user can remove the locking block 110 from the mounting frame 107.

[0042] In this embodiment, when the user connects the first copper pipe 100 and the second copper pipe 101, the two sets of limiting protrusions 105 on the connecting pipe 104 are aligned with the two sets of limiting grooves 103 respectively, and the connecting pipe 104 is inserted into the connecting groove 102, so that the first copper pipe 100 and the second copper pipe 101 are initially connected. Then, the limiting rods 114 on both sides of the locking block 110 are pressed into the mounting hole. At this time, the second spring 113 is compressed, pushing the locking block 110 into the mounting frame 107. The inclined surface at the bottom of the locking block 110 allows the locking block 110 to push the limiting member 111 into the second fixing hole 10. Within 8, the first spring 112 is compressed, and one end of the limiting member 111 is also inserted into the first fixing hole 106, so that the connecting pipe 104 is restricted in the connecting groove 102, and the first copper pipe 100 and the second copper pipe 101 are also fixed. The locking block 110 continues to be pushed into the mounting frame 107. When the limiting rod 114 is aligned with the through hole, the second spring 113 will rebound, pushing the limiting rod 114 into the through hole, so that the locking block 110 is fixed in the mounting frame 107. The installation process does not require professional tools, which reduces the difficulty of pipe connection and improves the connection efficiency of copper pipe.

[0043] A first sealing ring 116 is provided inside the second copper tube 101. The first sealing ring 116 can fit the inner wall of the second copper tube 101 and the end of the first copper tube 100. A second sealing ring 117 is installed in the connecting groove 102. The second sealing ring 117 is the same size as the connecting groove 102 and can completely fill the gap between the connecting groove 102 and the connecting tube 104.

[0044] It should be noted that when the connecting pipe 104 is inserted into the connecting groove 102, the axial contact area between the first copper pipe 100 and the second copper pipe 101 is increased, and both the first sealing ring 116 and the second sealing ring 117 have a certain degree of elasticity. This improves the sealing performance of the pipe connection and can buffer some of the vibrations along the pipe axis generated by external machinery, thereby reducing the impact of external mechanical vibrations on the reliability of the pipe connection.

[0045] Both sets of locking blocks 110 have beveled bottoms to facilitate the smooth insertion of the limiting member 111 into the second fixing hole 108 when the locking block 110 is pushed into the mounting frame 107, thereby reducing resistance during operation.

[0046] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A quick-connect copper pipe, comprising a first copper pipe (100) and a second copper pipe (101), characterized in that: The first copper tube (100) is provided with a connecting groove (102) and two sets of limiting grooves (103) at one end, and the second copper tube (101) is provided with a connecting tube (104) at one end. Two sets of limiting protrusions (105) are symmetrically provided on the connecting tube (104). Two sets of first fixing holes (106) are provided on both sides of the connecting tube (104). One end of the first copper tube (100) is connected to the second copper tube (101). The first copper tube (100) is symmetrically provided with two sets of mounting frames (107) and two sets of second fixing holes (108) on both sides. Each of the two sets of mounting frames (107) is provided with a fixing component, and each of the two sets of second fixing holes (108) is provided with a collar (109). Each of the two sets of fixing components includes a locking block (110), a limiting member (111), and a first spring (112).

2. The quick-connect copper pipe according to claim 1, characterized in that... : The connecting pipe (104) is fitted into the connecting groove (102), and the two sets of limiting protrusions (105) are respectively fitted into the two sets of limiting grooves (103); The two sets of first fixing holes (106) correspond to the positions of the two sets of second fixing holes (108).

3. A quick-connect copper pipe according to claim 1, characterized in that: One end of each of the two sets of collars (109) is fixedly connected to one of the two sets of the first springs (112), and the other end of each of the two sets of the first springs (112) is fixedly connected to one of the two sets of the limiting members (111). One end of each of the two sets of the limiting members (111) is in contact with the locking block (110).

4. A quick-connect copper pipe according to claim 3, characterized in that: One end of each of the two sets of limiting members (111) passes through the first fixing hole (106) and the second fixing hole (108).

5. A quick-connect copper pipe according to claim 1, characterized in that: Both sets of the card blocks (110) have mounting holes on both sides, and a second spring (113) is installed in each of the four sets of mounting holes. One end of each of the four sets of second springs (113) is connected to a limit rod (114). Both sides of the two sets of mounting frames (107) are provided with through holes, and pushers (115) are inserted into the four sets of through holes. The end of the four sets of pushers (115) near the card block (110) is in contact with the limiting rod (114).

6. A quick-connect copper pipe according to claim 1, characterized in that: The second copper tube (101) is provided with a first sealing ring (116), and the connecting groove (102) is fitted with a second sealing ring (117), the second sealing ring (117) and the connecting groove (102) are the same size; One end of the first copper tube (100) is in contact with the first sealing ring (116), and one end of the connecting tube (104) is in contact with the second sealing ring (117).

7. A quick-connect copper pipe according to claim 1, characterized in that: Both sets of the card blocks (110) have a slope at the bottom.

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