A plug-in union for refrigerant lines

Abstract

This application relates to the field of refrigeration piping technology, and more particularly to an insert-type union for refrigeration piping. To address the problem of limited space hindering disassembly and installation, the union includes a plug with a socket on its right side and a limiting component above the plug. The plug includes a tapered head with a feed connector fixedly mounted on its left end. The socket has a sleeve on its right side, and a discharge connector is fixedly mounted on the right side of the sleeve. This application utilizes the cooperation of the tapered head and tapered groove to allow the plug and socket to be inserted. The cooperation of a first rubber ring and a second rubber ring provides elasticity, ensuring a seal after the plug and socket are closed. Furthermore, the cooperation of a U-shaped plate and a stepped hole allows the threaded rod to control the pressure applied to the plug and socket by the top post, ensuring a tight seal. This device can be operated without tools, effectively ensuring installation and disassembly in confined spaces.

Description

Technical Field

[0001] This invention relates to the field of refrigeration piping technology, specifically to an insert-type union for refrigeration piping. Background Technology

[0002] Refrigeration piping is a sealed piping system in a refrigeration system used to connect the main components (compressor, condenser, expansion valve, evaporator) and allow refrigerant to circulate within it. It is the "blood vessels" of the refrigeration system, and its design and construction quality directly affect the efficiency, reliability, and lifespan of the entire system.

[0003] Currently, refrigeration pipes require fittings for use. While these fittings can connect pipes, they still have some shortcomings in actual use. For example, they are generally made by thread, which requires various tools and can affect disassembly and installation if space is limited.

[0004] Based on this, the present invention designs an insert-type union for refrigeration pipes to solve the problem. Summary of the Invention

[0005] The purpose of this invention is to provide an insert-type union for refrigeration pipes to solve the problem in the background art where limited space can affect disassembly and installation.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an insert-type fitting for a refrigeration pipe, comprising a plug, a socket on the right side of the plug, a limiting component above the plug, the plug including a tapered head, and a feed connector fixedly installed at the left end of the tapered head.

[0007] Preferably, the socket has a sleeve on the right side, a discharge connector is fixedly installed on the right side of the sleeve, and a tapered groove is provided on the left side of the sleeve, with a first rubber ring on the inner wall of the tapered groove.

[0008] Preferably, the limiting component includes a U-shaped plate disposed outside the plug, with openings on both the left and right sides of the U-shaped plate, and two sets of stepped holes on the inner wall of the U-shaped plate. A threaded rod is threadedly connected to the inner wall of each stepped hole, and a top post is slidably installed on the inner wall of each stepped hole.

[0009] Preferably, a second rubber ring is provided on the right side of the conical head, and the first rubber ring and the second rubber ring are in contact.

[0010] Preferably, the left side of the socket has two sets of slots, and each slot has a locking block slidably installed on its inner wall. The left side of each locking block is fixedly installed with the right side of the conical head.

[0011] Preferably, limit rings are fixedly installed on the outer surfaces of both the feed connector and the discharge connector, with the two limit rings located inside the two openings respectively.

[0012] Preferably, a handle is fixedly installed on both the front and back of the U-shaped plate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: by providing a conical head and a conical groove, the plug and socket can be inserted; by cooperating with the first rubber ring and the second rubber ring, elasticity can be provided, thereby ensuring a seal after the plug and socket are closed; and by utilizing the cooperation of the U-shaped plate and the stepped hole, the threaded rod can control the top column to apply pressure to the plug and socket, ensuring a closing effect. Thus, the device can be operated without tools, thereby effectively ensuring installation and disassembly in confined spaces. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the U-shaped plate of the present invention; Figure 3 This is a three-dimensional schematic diagram of the front section of the conical head of the present invention; Figure 4 This is a three-dimensional structural diagram of the top column of the present invention.

[0016] The attached diagram lists the components represented by each number as follows: 1. Plug; 101. Conical head; 102. Second rubber ring; 103. Locking block; 104. Limiting ring; 105. Feed connector; 2. Socket; 201. Socket sleeve; 202. First rubber ring; 203. Slot; 204. Conical groove; 205. Discharge connector; 3. Limiting assembly; 301. U-shaped plate; 302. Through port; 303. Stepped hole; 304. Threaded rod; 305. Top post; 306. Pull handle. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figures 1 to 4 The present invention provides a technical solution: an insert-type fitting for a refrigeration pipe, including a plug 1, a socket 2 on the right side of the plug 1, a limiting component 3 on the top of the plug 1, the plug 1 including a conical head 101, and a feed connector 105 fixedly installed on the left end of the conical head 101.

[0019] Please see Figure 3 The socket 2 has a sleeve 201 on the right side, and a discharge connector 205 is fixedly installed on the right side of the sleeve 201. The sleeve 201 has a tapered groove 204 on the left side, and a first rubber ring 202 is provided on the inner wall of the tapered groove 204. The tapered groove 204 and the tapered head 101 can be used to stably close the plug 1 and the socket 2.

[0020] Please see Figure 2 The limiting component 3 includes a U-shaped plate 301 disposed outside the plug 1. Both sides of the U-shaped plate 301 have openings 302. The inner wall of the U-shaped plate 301 has two sets of stepped holes 303. The inner wall of each stepped hole 303 is threaded with a threaded rod 304. The inner wall of each stepped hole 303 is slidably installed with a top post 305. By using the cooperation of the threaded rod 304 and the stepped hole 303, the movement of the top post 305 can be controlled, so that the top post 305 can apply pressure to the plug 1 and the socket 2 to prevent the plug 1 and the socket 2 from becoming loose.

[0021] Please see Figure 3 A second rubber ring 102 is provided on the right side of the conical head 101. The first rubber ring 202 and the second rubber ring 102 are in contact with each other. The first rubber ring 202 and the second rubber ring 102 can ensure that the sealing performance is maintained after docking.

[0022] Please see Figure 3 The left side of the socket 201 has two sets of slots 203. Each slot 203 has a sliding block 103 on its inner wall. The left side of each block 103 is fixedly installed with the right side of the conical head 101. The block 103 and the slot 203 can limit the plug 1 and the socket 2 to prevent them from rotating.

[0023] Please see Figure 3Limiting rings 104 are fixedly installed on the outer surfaces of the feed connector 105 and the discharge connector 205. The two limiting rings 104 are located inside the two ports 302 respectively. The limiting rings 104 can protect the feed connector 105 and the discharge connector 205 and prevent them from being worn.

[0024] Please see Figure 2 A handle 306 is fixedly installed on both the front and back of the U-shaped plate 301. The handle 306 allows for easy control of the device, making it convenient to pull the U-shaped plate 301 up and down.

[0025] The implementation principle of the insert-type union for refrigeration pipes in this application embodiment is as follows: During use, the inlet connector 105 and the outlet connector 205 can be connected to the pipe. Then, the conical head 101 is inserted into the conical groove 204, so that the first rubber ring 202 and the second rubber ring 202 can contact each other to ensure a sealing effect. Then, the U-shaped plate 301 is clamped on the outside of the plug 1 and the socket 2, so that the through port 302 can be clamped on the outside of the limiting ring 104. Then, the threaded rod 304 is rotated, so that the threaded rod 304 pushes the top column 305 to move, so that the top column 305 can apply pressure to the plug 1 and the socket 2, effectively preventing the plug 1 and the socket 2 from loosening. This not only allows for quick installation of the plug 1 and the socket 2, but also allows for the rotation of the threaded rod 304 in confined spaces without the need for other tools.

[0026] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0027] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0028] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A plug-in type union for a refrigeration pipe, comprising a plug (1), characterized in that: The plug (1) has a socket (2) on its right side and a limiting component (3) on its upper side. The plug (1) includes a conical head (101) and a feed connector (105) is fixedly installed on the left end of the conical head (101).

2. The insertion-type union for a refrigeration pipe according to claim 1, characterized in that: The socket (2) has a sleeve (201) on the right side, and a discharge connector (205) is fixedly installed on the right side of the sleeve (201). A conical groove (204) is opened on the left side of the sleeve (201), and a first rubber ring (202) is provided on the inner wall of the conical groove (204).

3. The insertion-type union for a refrigeration pipe according to claim 1, characterized in that: The limiting component (3) includes a U-shaped plate (301) disposed outside the plug (1). The left and right sides of the U-shaped plate (301) are provided with openings (302). The inner wall of the U-shaped plate (301) is provided with two sets of stepped holes (303). The inner wall of each stepped hole (303) is threaded with a threaded rod (304). The inner wall of each stepped hole (303) is slidably installed with a top post (305).

4. The insertion-type union for a refrigeration pipe according to claim 2, characterized in that: The right side of the conical head (101) is provided with a second rubber ring (102), and the first rubber ring (202) and the second rubber ring (102) are in contact.

5. The insertion-type union for a refrigeration pipe according to claim 2, characterized in that: The left side of the sleeve (201) is provided with two sets of slots (203), and each slot (203) has a sliding block (103) installed on its inner wall. The left side of each block (103) is fixedly installed with the right side of the conical head (101).

6. The insertion-type union for a refrigeration pipe according to claim 1, characterized in that: The outer surfaces of the feed connector (105) and the discharge connector (205) are fixedly equipped with limiting rings (104), and the two limiting rings (104) are located inside the two ports (302) respectively.

7. The insertion-type union for a refrigeration pipe according to claim 3, characterized in that: A handle (306) is fixedly installed on both the front and back of the U-shaped plate (301).

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