Dual-source heat pump piping quick-connect installation joint structure

Abstract

This utility model relates to the field of dual-source heat pump technology, specifically a quick-connect installation joint structure for dual-source heat pump pipelines. It includes a first pipeline and a second pipeline. The right end of the first pipeline has a female connector sleeve containing an inner tube communicating with the first pipeline. The left end of the second pipeline has a male connector end, and the left side of the male connector end has an outer sleeve adapted to the inner tube. The outer wall of the female connector sleeve has two locking elements symmetrically arranged front and back. This quick-connect installation joint structure for dual-source heat pump pipelines, through the quick-connect design of the female connector sleeve and the male connector end, combined with the elastic self-locking mechanism of the locking elements, allows for pipeline connection without welding or thread tightening. During operation, simply pulling the rectangular sleeve block releases the locking state, avoiding the time-consuming maintenance problems caused by thread jamming or difficult disassembly in traditional methods.

Description

Technical Field

[0001] This utility model relates to the field of dual-source heat pump technology, specifically to a quick-connect installation joint structure for dual-source heat pump pipelines. Background Technology

[0002] A dual-source heat pump is a highly efficient heat energy conversion device that utilizes renewable energy sources from nature for heating or cooling. By simultaneously extracting heat energy from the air and groundwater or soil, it can flexibly adjust its operating mode according to different seasons and environmental conditions, achieving efficient energy utilization and environmentally friendly operation. With increasing awareness of energy conservation and environmental protection, dual-source heat pumps are being used more and more widely in residential, commercial, and industrial sectors, becoming an important heating and cooling solution in modern buildings.

[0003] In dual-source heat pump systems, piping design and connection are crucial for their proper operation. Traditional piping connections primarily rely on welding or threading. While welding provides a relatively robust connection, its installation process is complex and time-consuming, especially during on-site construction. Welding demands high skill levels, and improper operation can easily lead to substandard weld quality, increasing the difficulty of later maintenance. Furthermore, once a welded joint is formed, disassembly often requires cutting or re-welding, resulting in waste of equipment and materials.

[0004] Comparatively, threaded connections are more convenient to install and allow for flexible disassembly. However, after prolonged use, threaded connections are prone to jamming due to wear, corrosion, or aging. In severe cases, reverse rotation during disassembly may cause the threads to break or be damaged. This not only affects maintenance efficiency but may also lead to leaks in the piping system, impacting overall operational safety and performance. Therefore, there is an urgent need for a piping connection solution that improves connection efficiency and ensures ease of disassembly to meet the actual needs of dual-source heat pump systems.

[0005] In view of the above problems, we propose a quick-connect installation joint structure for dual-source heat pump pipelines. The aim is to improve the convenience and reliability of pipeline connections through optimized connection design, and to provide an effective solution for the installation and maintenance of dual-source heat pump systems. Utility Model Content

[0006] The purpose of this invention is to provide a quick-connect installation joint structure for dual-source heat pump pipelines to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] The dual-source heat pump pipeline quick-connect installation joint structure includes a first pipe and a second pipe, which are used to transport circulating fluid in the dual-source heat pump system. The right end of the first pipe is provided with a female connector sleeve, which is used to fix the first pipe and provide a locking structure with the male connector end. The female connector sleeve is provided with an inner tube that communicates with the first pipe. The inner tube is used to insert into the outer tube and form a fluid channel. The left end of the second pipe is provided with a male connector end, which is used to quickly connect with the female connector sleeve through the outer tube. The left side of the male connector end is provided with an outer tube that is adapted to the inner tube. The outer tube is used to wrap the inner tube. The outer wall of the female connector sleeve is provided with two locking members that are symmetrically arranged front and back. The locking members are used to prevent the connection from falling off by cooperating with the locking block and the locking groove.

[0009] Preferably, the left end of the inner wall of the female coupling sleeve is provided with a first rubber ring, and the left end of the outer sleeve is provided with a tapered end. The outer wall of the tapered end is in close contact with the inner wall of the first rubber ring. The tapered end is used to guide the outer sleeve into the female coupling sleeve and compress the first rubber ring to achieve initial sealing.

[0010] Preferably, a second rubber ring is embedded at the right end of the inner wall of the female coupling sleeve. The inner wall of the second rubber ring is in close contact with the outer wall of the outer sleeve, and the second rubber ring is used to form a secondary seal by contacting the outer wall of the outer sleeve.

[0011] Preferably, the outer sleeve is connected to the second pipe, and the connection between the outer sleeve and the second pipe is used to establish a fluid transmission path. A rubber gasket is provided at the right end of the inner wall of the outer sleeve.

[0012] Preferably, the outer wall of the inner tube is in contact with the inner wall of the outer tube, and the right end of the inner tube is in close contact with the left side of the rubber gasket. The rubber gasket is used to fit with the right end of the inner tube to prevent fluid leakage.

[0013] Preferably, the locking component includes a rectangular housing, the open end of which is welded to the outer wall of the female coupling sleeve. A locking block is slidably connected inside the rectangular housing. Two locking grooves are provided on the outer wall of the outer sleeve near the left end, arranged symmetrically in front and behind. The locking block passes through the outer wall of the female coupling sleeve and is inserted into the locking groove. The locking block is used to insert into the locking groove to achieve mechanical locking.

[0014] Preferably, the locking block has a rectangular rod on the side away from the outer sleeve. The rectangular rod is used to transmit operating force and restrict the movement direction of the locking block. A spring is sleeved on the outer side of the rectangular rod. The spring is used to provide elastic restoring force to keep the locking block in a locked state. The end of the rectangular rod away from the locking block passes through the inner wall of the rectangular housing and is fixedly connected to a rectangular sleeve block. The rectangular sleeve block is sleeved on the outer side of the rectangular housing and is used to manually pull it outward to release the locking state.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The quick-connect installation joint structure for dual-source heat pump pipelines features a quick-connect design between the female and male connector sleeves, combined with the elastic self-locking mechanism of the locking component. This allows for pipeline connection without welding or thread tightening. During operation, simply pulling the rectangular sleeve block releases the locking state, avoiding the time-consuming maintenance issues caused by thread jamming or difficult disassembly in traditional methods.

[0017] 2. The quick-connect installation joint structure of this dual-source heat pump pipeline forms a double sealing barrier by setting a first rubber ring and a second rubber ring inside the female connection sleeve, which fits tightly with the tapered end and outer wall of the outer sleeve. At the same time, the inner tube fits with the end face of the rubber gasket to further prevent fluid leakage, effectively solving the system leakage risk caused by poor sealing in traditional connection methods.

[0018] 3. The quick-connect installation joint structure of this dual-source heat pump pipeline, with the mechanical locking of the locking block and locking groove combined with the elastic reset function of the spring, ensures that the pipeline remains firmly connected under high pressure or vibration environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0021] Figure 3 This is one of the partial structural schematic diagrams of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0023] Figure 5 This is a partial cross-sectional structural diagram of the present invention;

[0024] Figure 6 This is the second partial structural schematic diagram of the present utility model;

[0025] In the diagram: 100, first pipe; 200, second pipe; 300, female connector sleeve; 310, inner tube; 400, male connector end; 410, outer tube; 411, locking groove; 412, tapered end; 500, locking element; 510, rectangular shell; 520, rectangular rod; 530, locking block; 540, spring; 550, rectangular sleeve block; 600, first rubber ring; 700, second rubber ring; 800, rubber washer. Detailed Implementation

[0026] 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.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Please see Figures 1-6 This utility model provides a technical solution:

[0029] The dual-source heat pump pipeline quick-connect installation joint structure includes a first pipe 100 and a second pipe 200. The first pipe 100 and the second pipe 200 are used to transport circulating fluid in the dual-source heat pump system. A female connector sleeve 300 is provided at the right end of the first pipe 100. The female connector sleeve 300 is used to fix the first pipe 100 and provides a locking structure with the male connector end 400. An inner insertion tube 310 communicating with the first pipe 100 is provided inside the female connector sleeve 300. The inner insertion tube 310 is used to insert the outer outer tube 410. The internal fluid channel is formed. The left end of the second pipe 200 is provided with a male docking end 400, which is used to quickly dock with the female docking sleeve 300 through the outer sleeve 410. The left side of the male docking end 400 is provided with an outer sleeve 410 that is adapted to the inner insertion tube 310. The outer sleeve 410 is used to wrap the inner insertion tube 310. The outer wall of the female docking sleeve 300 is provided with two locking members 500 arranged symmetrically in front and behind. The locking members 500 are used to prevent the connection from falling off by cooperating with the locking groove 411 through the locking block 530.

[0030] In this embodiment, a first rubber ring 600 is provided at the left end of the inner wall of the female coupling sleeve 300, and a tapered end 412 is provided at the left end of the outer sleeve 410. The outer wall of the tapered end 412 is tightly fitted with the inner wall of the first rubber ring 600. The tapered end 412 is used to guide the outer sleeve 410 into the female coupling sleeve 300 and compress the first rubber ring 600 to achieve initial sealing.

[0031] Specifically, a second rubber ring 700 is embedded at the right end of the inner wall of the female coupling sleeve 300. The inner wall of the second rubber ring 700 is tightly fitted with the outer wall of the outer sleeve 410. The second rubber ring 700 is used to contact the outer wall of the outer sleeve 410 to form a secondary seal.

[0032] Furthermore, the outer sleeve 410 is connected to the second pipe 200, and the connection between the outer sleeve 410 and the second pipe 200 is used to establish a fluid transmission path. A rubber gasket 800 is provided at the right end of the inner wall of the outer sleeve 410.

[0033] Furthermore, the outer wall of the inner tube 310 is in contact with the inner wall of the outer tube 410, and the right end of the inner tube 310 is in close contact with the left side of the rubber gasket 800. The rubber gasket 800 is used to fit with the right end of the inner tube 310 to prevent fluid leakage.

[0034] Furthermore, the locking component 500 includes a rectangular housing 510, the open end of which is welded to the outer wall of the female coupling sleeve 300. A locking block 530 is slidably connected inside the rectangular housing 510. Two locking grooves 411 are provided on the outer wall of the outer sleeve 410 near the left end, arranged symmetrically in front and behind. The locking block 530 passes through the outer wall of the female coupling sleeve 300 and is inserted into the locking groove 411. The locking block 530 is used to insert into the locking groove 411 to achieve mechanical locking.

[0035] Furthermore, a rectangular rod 520 is provided on the side of the locking block 530 away from the outer sleeve 410. The rectangular rod 520 is used to transmit operating force and limit the movement direction of the locking block 530. A spring 540 is sleeved on the outer side of the rectangular rod 520. The spring 540 is used to provide elastic restoring force to keep the locking block 530 locked. The end of the rectangular rod 520 away from the locking block 530 passes through the inner wall of the rectangular housing 510 and is fixedly connected to a rectangular sleeve 550. The rectangular sleeve 550 is sleeved on the outer side of the rectangular housing 510 and is used to manually pull it outward to release the locking state.

[0036] In this embodiment, the quick-connect installation joint structure for the dual-source heat pump pipeline is used by first aligning the female connector 300 of the first pipeline 100 with the male connector 400 of the second pipeline 200. The outer sleeve 410 of the male connector 400 is then inserted into the female connector 300. The tapered end 412 at the left end of the outer sleeve 410 guides the insertion through an inclined plane and presses against the first rubber ring 600 inside the female connector 300 to form an initial seal. After the outer sleeve 410 is fully inserted into the female connector 300, the locking block 530 in the locking member 500 automatically inserts into the locking groove 411 on the outer wall of the outer sleeve 410 under the elastic force of the spring 540, completing the mechanical locking. At this time, the right end of the inner tube 310 is connected to the outer sleeve. The rubber gasket 800 inside the tube 410 fits tightly to prevent fluid leakage, while the second rubber ring 700 contacts the outer wall of the outer tube 410 to form a secondary seal. After connection, fluid is transmitted between the first pipe 100 and the second pipe 200 through the channel between the inner tube 310 and the outer tube 410. When disassembly is required, the rectangular sleeve 550 of the locking piece 500 is pulled outward manually, which drives the rectangular rod 520 to overcome the elastic force of the spring 540 and remove the locking block 530 from the locking groove 411, thus separating the female docking sleeve 300 from the male docking end 400. The whole process is tool-free and easy to operate. Through the above steps, the dual-source heat pump pipeline can be quickly installed, reliably sealed, and conveniently maintained.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. Double source heat pump pipeline rapid butt joint installation joint structure, comprising a first pipeline (100) and a second pipeline (200), characterized in that: The right end of the first pipe (100) is provided with a female docking sleeve (300), and the female docking sleeve (300) is provided with an inner tube (310) that communicates with the first pipe (100). The left end of the second pipe (200) is provided with a male docking end (400), and the left side of the male docking end (400) is provided with an outer tube (410) that is adapted to the inner tube (310). The outer wall of the female docking sleeve (300) is provided with two locking pieces (500) that are symmetrically arranged front and back.

2. The dual source heat pump quick dock fitting connection structure of claim 1, wherein: The left end of the inner wall of the female coupling sleeve (300) is provided with a first rubber ring (600), and the left end of the outer sleeve (410) is provided with a tapered end (412). The outer wall of the tapered end (412) is tightly fitted with the inner wall of the first rubber ring (600).

3. The dual source heat pump quick dock fitting connection structure of claim 1, wherein: The right end of the inner wall of the female coupling sleeve (300) is provided with a second rubber ring (700), and the inner wall of the second rubber ring (700) is tightly fitted with the outer wall of the outer sleeve (410).

4. The dual source heat pump quick mated installation fitting structure of claim 1, wherein: The outer sleeve (410) is connected to the second pipe (200), and a rubber gasket (800) is provided at the right end of the inner wall of the outer sleeve (410).

5. The dual source heat pump quick dock fitting connection structure of claim 4, wherein: The outer wall of the inner tube (310) is in contact with the inner wall of the outer tube (410), and the right end of the inner tube (310) is in close contact with the left side of the rubber gasket (800).

6. The quick-connect installation joint structure for dual-source heat pump pipelines according to claim 1, characterized in that: The locking component (500) includes a rectangular housing (510), the open end of which is welded to the outer wall of the female docking sleeve (300). A locking block (530) is slidably connected inside the rectangular housing (510). Two locking grooves (411) are provided on the outer wall of the outer sleeve (410) near the left end, arranged symmetrically in front and behind. The locking block (530) passes through the outer wall of the female docking sleeve (300) and is inserted into the locking groove (411).

7. The dual source heat pump quick dock fitting connection structure of claim 6, wherein: The locking block (530) has a rectangular rod (520) on the side away from the outer sleeve (410). A spring (540) is sleeved on the outside of the rectangular rod (520). The end of the rectangular rod (520) away from the locking block (530) passes through the inner wall of the rectangular shell (510) and is fixedly connected to a rectangular sleeve block (550). The rectangular sleeve block (550) is sleeved on the outside of the rectangular shell (510).

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