Leak-proof sealing type refrigerant pipeline connecting structure of evaporative cooling all-in-one machine

By using quick-connect components and double-layer sealing rings, the problems of difficult disassembly and poor sealing in traditional refrigerant piping connections are solved, achieving rapid installation and reliable sealing, reducing maintenance costs and leakage risks.

CN224245685UActive Publication Date: 2026-05-15SHANGHAI XINBAI REFRIGERATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI XINBAI REFRIGERATION TECH CO LTD
Filing Date
2025-07-05
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Traditional refrigerant piping connections are difficult to disassemble, easily loosening and leading to decreased sealing, increased maintenance costs, and leakage risks.

Method used

The quick-connect assembly, including a female collar and a male collar, uses a snap-fit ​​design between the female and male fasteners, combined with a double-layer sealing ring structure, to achieve quick connection and disassembly, and provide a reliable sealing effect.

Benefits of technology

It improves installation efficiency, reduces maintenance costs, ensures the stability and sealing of the refrigeration system, and effectively prevents refrigerant leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of evaporation cooling all-in-one machines, in particular to a leakage-proof sealing type refrigerant pipeline connecting structure of an evaporation cooling all-in-one machine, which comprises a front-section pipeline and a rear-section pipeline, and a quick connector assembly is arranged between the front-section pipeline and the rear-section pipeline. The quick connector assembly is composed of a female lantern ring fixedly connected to the rear-section pipeline and a male lantern ring fixedly connected to the front-section pipeline, two symmetrically-arranged female fasteners are arranged on the outer wall of the female lantern ring, and male fasteners fixedly connected with the female fasteners in an inserted mode are fixedly arranged on the outer wall of the male lantern ring. Compared with a traditional pipeline connecting structure, the anti-leakage sealed refrigerant pipeline connecting structure of the evaporative cooling all-in-one machine has the advantages that connection can be quickly completed, the installation time is greatly shortened, the installation efficiency is improved, the anti-leakage sealed refrigerant pipeline connecting structure can be easily disassembled and can be reused after being disassembled, the maintenance cost and material waste are reduced, the reliable sealing effect can be provided, and the service life of the anti-leakage sealed refrigerant pipeline connecting structure is prolonged. Refrigerant leakage is effectively prevented, and stability and refrigerating efficiency of a refrigerating system are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of evaporative cooling integrated machines, specifically a leak-proof, sealed refrigerant pipeline connection structure for an evaporative cooling integrated machine. Background Technology

[0002] Traditional refrigerant piping connections primarily employ welding or threaded connections. While welding offers high connection strength and sealing, the process requires specialized equipment and technicians, is complex to install, and its quality is highly susceptible to human error, making it prone to defects and refrigerant leaks. Furthermore, once welded connections are completed, they are difficult to disassemble and repair; any modifications or repairs often require damaging the existing piping, increasing maintenance costs and complexity. Threaded connections, while relatively simple, are prone to loosening due to vibrations generated during refrigeration system operation, leading to decreased sealing and refrigerant leaks. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a leak-proof, sealed refrigerant pipeline connection structure for an integrated evaporative refrigeration system, which solves the technical problems of existing pipeline connection structures being difficult to disassemble and prone to loosening, thus affecting sealing performance.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a leak-proof, sealed evaporative refrigeration integrated refrigerant pipeline connection structure, including a front pipeline and a rear pipeline, wherein a quick-connect assembly is provided between the front pipeline and the rear pipeline; the quick-connect assembly consists of a female collar fixed to the rear pipeline and a male collar fixed to the front pipeline, wherein two symmetrically arranged female fasteners are provided on the outer wall of the female collar, and a male fastener that is inserted and fixed to the female fasteners is fixed on the outer wall of the male collar;

[0005] The female fastener includes a slider, which is elastically slidably disposed in a groove opened on the outer wall of the female collar by means of a spring, and a female buckle is fixed on the surface of the slider; the male fastener includes a male buckle, which is fixedly connected to the outer wall of the male collar, and the male buckle is inserted and fixedly connected to two female buckles.

[0006] Preferably, the female buckle has a "U" shaped structure, and the inner wall of the female buckle is provided with a groove, and the end of the female buckle away from the slider is provided with an inclined surface.

[0007] Preferably, the male buckle is arrow-shaped, with slots on both sides of the male buckle and a bevel at one end.

[0008] Preferably, the surface of the female buckle is provided with protrusions.

[0009] Preferably, the bottom of the female collar is fixedly provided with a positioning block, and the bottom of the male collar is provided with a positioning slot that engages with the positioning block.

[0010] Preferably, the opening of the positioning slot is provided with two guide ramps.

[0011] Preferably, an annular groove is provided on the opposite sidewalls of the male and female collars, and a sealing ring is embedded in the annular groove.

[0012] Preferably, annular grooves are provided on the opposite sidewalls of the front and rear pipelines, and sealing rings are embedded in the annular grooves.

[0013] By employing the above technical solution, this utility model provides a leak-proof, sealed refrigerant pipeline connection structure for an integrated evaporative refrigeration system, which has at least the following beneficial effects:

[0014] 1. This leak-proof, sealed evaporative refrigeration system features an improved refrigerant piping connection structure. It utilizes a male and female fastener snap-fit ​​connection method, allowing for quick connection compared to traditional piping structures. This significantly reduces installation time and efficiency. It also allows for easy disassembly and reuse, lowering maintenance costs and material waste. Furthermore, it provides a reliable seal, effectively preventing refrigerant leakage and ensuring the stability and efficiency of the refrigeration system.

[0015] 2. The leak-proof, sealed evaporative refrigeration system's refrigerant piping connection structure features a double-layer sealing ring structure with two sealing rings: sealing ring one and sealing ring two. This double-layer sealing ring structure provides double protection. Even if the inner sealing ring two leaks slightly, the outer sealing ring one can still prevent further refrigerant leakage, greatly reducing the risk of refrigerant leakage and ensuring the normal operation of the refrigeration system. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the male and female collars after disassembly.

[0019] Figure 3 This is a schematic diagram of the bottom structure of the male sleeve of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the front and rear pipelines of this utility model after they are separated.

[0021] Figure label:

[0022] 1. Front-end piping; 2. Rear-end piping; 3. Quick-connect assembly; 31. Female collar; 311. Female fastener; 3111. Slider; 3112. Spring; 3113. Female fastener; 31131. Slot 1; 31132. Bevel 1; 31133. Protrusion; 312. Positioning block; 32. Male collar; 321. Male fastener; 3211. Male fastener; 32111. Slot 2; 32112. Bevel 2; 322. Positioning slot; 3221. Guide bevel; 4. Annular groove 1; 5. Sealing ring 1; 6. Annular groove 2; 7. Sealing ring 2. Detailed Implementation

[0023] 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.

[0024] In the field of refrigeration technology, evaporative air conditioners, as a highly efficient refrigeration device, are widely used in air conditioning systems of industrial, commercial, and civil buildings. The performance and stability of their refrigeration systems are crucial to the overall operation of the equipment, and the refrigerant piping connection structure is a key component of the refrigeration system.

[0025] Due to the inherent technical limitations of existing technologies, such as difficulty in disassembly and easy loosening that affects sealing, please refer to... Figures 1-4 This embodiment provides a leak-proof, sealed refrigerant piping connection structure for an integrated evaporative refrigeration system. This structure allows for quick connection, significantly shortening installation time and improving efficiency. It is easily disassembled and can be reused after disassembly, reducing maintenance costs and material waste. Furthermore, it provides a reliable seal, effectively preventing refrigerant leakage and ensuring the stability and efficiency of the refrigeration system. The connection structure includes a front pipe section 1 and a rear pipe section 2, with a quick-connect assembly 3 between them. The quick-connect assembly 3 consists of a female collar 31 fixed to the rear pipe section 2 and... The system consists of a male collar 32 fixed to the front section of the pipeline 1, and two symmetrically arranged female fasteners 311 on the outer wall of the female collar 31. A male fastener 321 is fixed on the outer wall of the male collar 32 to be inserted and fixed to the female fasteners 311. The system adopts a snap-fit ​​quick-connect design between the female collar 31 and the male collar 32, which can be quickly connected and disassembled without tools, significantly improving installation efficiency, reducing labor costs, and being reusable. In use, the front section of the pipeline 1 and the rear section of the pipeline 2 are aligned, and then their ends are inserted into each other to form a snap-fit ​​connection between the male fastener 321 and the female fastener 311.

[0026] Furthermore, the female fastener 311 includes a slider 3111, which is elastically slidably disposed in a groove opened on the outer wall of the female collar 31 by a spring 3112, and a female buckle 3113 is fixedly provided on the surface of the slider 3111; the male fastener 321 includes a male buckle 3211, which is fixedly connected to the outer wall of the male collar 32, and the male buckle 3211 is inserted and fixedly connected to two female buckles 3113; the female buckle 3113 has a "U" shaped structure, and a slot 31131 is provided on the inner wall of the female buckle 3113, and a bevel 31132 is provided at the end of the female buckle 3113 away from the slider 3111; the male buckle 3211 is arrow-shaped. The male buckle 3211 has slots 32111 on both sides of its side wall, and a bevel 32112 at one end of its side. When the male collar 32 and the female collar 31 are connected, the male buckle 3211 will be engaged with the female buckle 3113 by the action of the bevel 31132 and the bevel 32112. During the insertion process, the female buckle 3113 can move under the action of the slider 3111 and the spring 3112. When the male buckle 3211 and the female buckle 3113 are fully engaged, the spring 3112 can reset the female buckle 3113, and the male buckle 3211 and the female buckle 3113 are automatically connected.

[0027] When disassembly is required for maintenance in the later stage, the two female buckles 3113 need to be separated in order to disconnect them from the male buckle 3211. For this purpose, a protrusion 31133 is provided on the surface of the female buckle 3113. With the setting of the protrusion 31133, it is easy to operate the two female buckles 3113 to move away from each other, thereby realizing the separation from the male buckle 3211.

[0028] When the male fastener 321 and the female fastener 3113 are mated, angular deviations may occur, affecting the connection. To address this issue, a positioning block 312 is fixedly provided at the bottom of the female collar 31, and a positioning slot 322 is provided at the bottom of the male collar 32 to engage with the positioning block 312. When the male fastener 3211 and the female fastener 3113 are connected, the positioning block 312 can be inserted into the positioning slot 322 to ensure that the male fastener 3211 and the female fastener 3113 are precisely aligned during mating, thereby improving connection efficiency.

[0029] Furthermore, two guide ramps 3221 are provided at the opening of the positioning slot 322; by setting the guide ramps 3221, the positioning plug 312 can be inserted into the positioning slot 322 more accurately, so as to realize the connection and positioning of the male buckle 3211 and the female buckle 3113.

[0030] Existing refrigerant piping connection structures typically employ single-layer sealing rings. These single-layer sealing rings are prone to leakage due to aging, wear, or pressure fluctuations. Furthermore, traditional sealing structures struggle to simultaneously withstand internal refrigerant pressure and external environmental corrosion. To address this issue, annular grooves 4 are formed on the opposing sidewalls of the male collar 32 and the female collar 31, with a sealing ring 5 embedded within each groove. Similarly, annular grooves 6 are formed on the opposing sidewalls of the front section of pipe 1 and the rear section of pipe 2, with a sealing ring 7 embedded within each groove. By incorporating sealing rings 5 ​​and 7, a double-layer sealing structure provides dual protection. Even if the inner sealing ring 7 experiences a slight leak, the outer sealing ring 5 can still prevent further refrigerant leakage, significantly reducing the risk of refrigerant leakage and ensuring the normal operation of the refrigeration system.

[0031] It should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] 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 leak-proof, sealed refrigerant piping connection structure for an integrated evaporative refrigeration system, comprising a front piping section (1) and a rear piping section (2), characterized in that: A quick-connect assembly (3) is provided between the front section pipeline (1) and the rear section pipeline (2); the quick-connect assembly (3) consists of a female collar (31) fixed to the rear section pipeline (2) and a male collar (32) fixed to the front section pipeline (1). The outer wall of the female collar (31) is provided with two symmetrically arranged female fasteners (311), and the outer wall of the male collar (32) is provided with a male fastener (321) that is inserted and fixed to the female fasteners (311). The female fastener (311) includes a slider (3111), which is elastically slidably disposed in a groove opened on the outer wall of the female collar (31) by means of a spring (3112), and a female buckle (3113) is fixedly provided on the surface of the slider (3111); the male fastener (321) includes a male buckle (3211), which is fixedly connected to the outer wall of the male collar (32), and the male buckle (3211) is inserted and fixedly connected to two female buckles (3113).

2. The leak-proof, sealed evaporative refrigeration integrated machine refrigerant pipeline connection structure according to claim 1, characterized in that: The female buckle (3113) has a "U" shaped structure, and the inner wall of the female buckle (3113) is provided with a slot (31131), and the end of the female buckle (3113) away from the slider (3111) is provided with a slope (31132).

3. The leak-proof, sealed evaporative refrigeration integrated machine refrigerant pipeline connection structure according to claim 1, characterized in that: The male buckle (3211) is arrow-shaped, and slots (32111) are provided on both sides of the male buckle (3211). An inclined surface (32112) is provided at one end of the male buckle (3211).

4. The leak-proof, sealed evaporative refrigeration integrated machine refrigerant pipeline connection structure according to claim 1, characterized in that: The surface of the female buckle (3113) is provided with protrusions (31133).

5. The leak-proof, sealed evaporative refrigeration integrated machine refrigerant pipeline connection structure according to claim 1, characterized in that: The bottom of the female collar (31) is fixed with a positioning plug (312), and the bottom of the male collar (32) is provided with a positioning slot (322) that is inserted and engaged with the positioning plug (312).

6. The leak-proof, sealed evaporative refrigeration integrated machine refrigerant pipeline connection structure according to claim 5, characterized in that: The positioning slot (322) has two guide ramps (3221) at its opening.

7. The leak-proof, sealed evaporative refrigeration integrated machine refrigerant pipeline connection structure according to claim 1, characterized in that: The male collar (32) and the female collar (31) are provided with annular grooves (4) on their opposite sidewalls, and a sealing ring (5) is embedded in the annular grooves (4).

8. The leak-proof, sealed evaporative refrigeration integrated machine refrigerant pipeline connection structure according to claim 1, characterized in that: The front section pipe (1) and the rear section pipe (2) are provided with annular grooves (6) on their opposite side walls, and sealing rings (7) are embedded in the annular grooves (6).