Pipeline connecting mechanism based on solar photovoltaic thermal coupling buried pipe heat exchange system

Abstract

The invention discloses a pipeline connecting mechanism based on a solar photovoltaic thermal coupling buried pipe heat exchange system, the pipeline connecting mechanism comprises a sealing box, two insertion holes and a connecting mechanism, and the two insertion holes are oppositely formed in the two sides of the sealing box. According to the pipeline connecting mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system, the pipelines are connected in a sleeving mode, the connecting position can be wrapped, corrosion of foreign matter to the connecting position is reduced, the protection effect is achieved, the connecting quality between the two pipelines is improved, meanwhile, the supporting sleeves are used for supporting the pipelines, and the connecting quality of the two pipelines is improved. The anti-pressure capacity of the pipeline joint is improved, the reliability and stability of pipeline connection are further improved, the sealing performance of the joint is ensured through the sealing strip, deformation of the pipeline joint caused by too large local pressure is avoided by increasing the length of the joint and enlarging the compression area, and therefore the compression capacity is enhanced, and the high-pressure pipeline joint is suitable for a high-pressure pipeline system.

Description

Technical Field

[0001] The present application relates to the technical field of pipeline connection, and in particular to a pipeline connection mechanism based on a solar photovoltaic thermal coupling buried pipe heat exchange system. Background Art

[0002] Solar photovoltaic thermal coupling system is a comprehensive energy system that combines photovoltaic power generation and thermal energy utilization. The system converts sunlight into electrical energy through solar photovoltaic panels, and uses the thermal energy on the back of the photovoltaic panels for heating or cooling, thereby improving the comprehensive utilization efficiency of solar energy. In recent years, with the continuous growth of energy demand and the improvement of environmental protection awareness, solar photovoltaic thermal coupling system has been widely used in construction, agriculture, industry and other fields.

[0003] The underground heat exchange system is a technology that uses the constant temperature of the underground to exchange heat energy. By burying pipes underground, circulating media (such as water or antifreeze) are used to exchange heat with the soil to achieve heating and cooling. The underground heat exchange system has the advantages of high efficiency, environmental protection, and low operating costs. It is particularly suitable for use in combination with solar photovoltaic thermal coupling systems to further improve energy efficiency.

[0004] Although the solar photovoltaic thermal coupling buried pipe heat exchange system has many advantages, in practical applications, the traditional pipe connection method has some shortcomings: Traditional pipe connection methods (such as welding, threaded connection, etc.) require professional technology and tools, and the installation and maintenance process is complicated, which increases the difficulty and cost of construction. In addition, traditional connection methods are easily corroded by foreign matter, affecting the service life of the pipeline. Summary of the invention

[0005] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0006] To this end, one purpose of the present application is to provide a pipe connection mechanism based on a solar photovoltaic thermal coupling buried pipe heat exchange system, which has the effects of protecting the connection, improving connection reliability, ensuring sealing, enhancing pressure bearing capacity and facilitating installation and maintenance.

[0007] To achieve the above-mentioned purpose, the first aspect embodiment of the present application proposes a pipe connection mechanism based on a solar photovoltaic thermal coupling buried pipe heat exchange system, comprising a sealing box, two insertion holes and a connection mechanism, wherein the two insertion holes are relatively opened on both sides of the sealing box; the connection mechanism comprises a support plate, a sealing sleeve, a support disk, a support sleeve, a plurality of sealing strips and a clamping assembly, wherein the support plate is installed in the sealing box; the sealing sleeve is installed on the top of the support plate; the support disk is installed in the sealing sleeve, and the support disk is located in the middle position of the sealing sleeve; the support sleeve is located in the sealing sleeve, and the support sleeve is connected to the sealing sleeve through the support disk; the plurality of sealing strips are respectively installed on the inner wall of the sealing sleeve and the outer wall of the support sleeve; the clamping assembly is arranged in the sealing box, and the clamping assembly is connected to the sealing sleeve.

[0008] In addition, the pipe connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system proposed in the present application may also have the following additional technical features: In one embodiment of the present application, the length of the sealing sleeve is the same as the length of the supporting sleeve.

[0009] In one embodiment of the present application, the clamping assembly includes two support rods, a first limiting rod, a second limiting rod, two sliding plates, two sliding grooves, a threaded tube, a threaded rod, a push plate, a plurality of shrinking tubes, a plurality of shrinking rods, a push rod, a plurality of clamping belts and a positioning component, wherein the two support rods are relatively installed in the sealing box; the two ends of the first limiting rod are respectively connected to the two support rods; the second limiting rod is arranged below the first limiting rod; the two sliding plates are installed on the two ends of the second limiting rod; the two sliding grooves are opened on the corresponding support rods, and the two sliding grooves are connected to the The corresponding sliding plates are slidably connected; the threaded cylinder is installed on the support plate; the threaded rod is threadedly connected to the threaded cylinder; the push plate is rotatably arranged on one end of the threaded rod, and the second limit rod is connected to the push plate; multiple shrinking cylinders are arranged on the sealing sleeve, and multiple shrinking rods are slidably arranged on the corresponding shrinking cylinders; the push rod is installed on one end of multiple shrinking rods, and the push rod is located between the first limit rod and the second limit rod; multiple clamping belts are sleeved on the sealing sleeve and the push rod; the positioning component is arranged in the shrinking rod.

[0010] In one embodiment of the present application, an extrusion plate is installed at one end of the plurality of shrinking tubes close to the sealing sleeve, the extrusion plate is arc-shaped, and the plurality of shrinking tubes are fixedly connected to the sealing sleeve via the extrusion plate.

[0011] In one embodiment of the present application, the plurality of clamping bands are distributed in a linear array, and the plurality of clamping bands are connected to the sealing sleeve via an elastic band.

[0012] In one embodiment of the present application, the positioning component includes multiple positioning plates, multiple positioning rods, multiple pulling springs, multiple positioning disks, multiple first pulling ropes, second pulling ropes and multiple positioning grooves, wherein multiple positioning plates are installed on one end of the corresponding retraction rod; multiple positioning rods slide through the corresponding positioning plates; multiple pulling springs are respectively mounted on the corresponding positioning rods, and one end of multiple pulling springs is respectively connected to the corresponding positioning plates; multiple positioning disks are respectively installed on one end of the corresponding positioning rods, and multiple positioning disks are respectively connected to the other end of the corresponding pulling springs; the second pulling rope is slidably arranged in the pushing rod; one end of multiple first pulling ropes is connected to the corresponding positioning disks, and the other end of multiple first pulling ropes is connected to the second pulling rope; multiple positioning grooves are opened in the retraction tube in a linear array.

[0013] In one embodiment of the present application, a middle portion of the second pulling rope is located outside the pushing rod.

[0014] Compared with the prior art, the beneficial effects of this application are: By connecting the pipes in a sleeve manner, the joints can be wrapped to reduce the corrosion of the joints by foreign objects, achieve a protective effect, and improve the connection quality between the two pipes. At the same time, the support sleeve is used to support the pipe to improve the pressure resistance of the pipe joints, further improve the reliability and stability of the pipe connection, use sealing strips to ensure the sealing of the joints, and by increasing the length of the joints, expand the pressure area, avoid deformation of the pipe joints caused by excessive local pressure, thereby enhancing the pressure resistance, which is suitable for high-pressure pipeline systems.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which: Figure 1 This is a structural schematic diagram of a pipeline connection mechanism based on a solar photovoltaic thermal coupling buried pipe heat exchange system according to an embodiment of the present application; Figure 2 is a cross-sectional view of a sealing box according to an embodiment of the present application; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 is a cross-sectional view of a sealing sleeve according to an embodiment of the present application; Figure 5 is a three-dimensional diagram of a support rod according to an embodiment of the present application; Figure 6 is a three-dimensional diagram of a push rod according to an embodiment of the present application; Figure 7 for Figure 6 An enlarged view of the positioning component; Figure 8 The figure is a usage scenario diagram of a clamping belt according to one embodiment of the present application.

[0017] As shown in the figure: 1. Sealing box; 2. Insertion hole; 3. Connecting mechanism; 31. Support plate; 32. Sealing sleeve; 33. Support disk; 34. Support sleeve; 35. Sealing strip; 36. Clamping assembly; 361. Support rod; 362. First limiting rod; 363. Second limiting rod; 364. Sliding plate; 365. Sliding groove; 366. Threaded cylinder; 367. Threaded rod; 368. Push plate; 369. Retracting cylinder; 370. Retracting rod; 371. Push rod; 372. Clamping belt; 373. Positioning component; 3731. Positioning plate; 3732. Positioning rod; 3733. Pull spring; 3734. Positioning disk; 3735. First pulling rope; 3736. Second pulling rope; 3737. Positioning groove. DETAILED DESCRIPTION

[0018] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0019] The following describes the pipe connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system according to the embodiment of the present application in conjunction with the accompanying drawings.

[0020] like Figure 1-Figure 8 As shown, the pipeline connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system of the embodiment of the present application includes a sealing box 1, two insertion holes 2 and a connection mechanism 3, wherein the two insertion holes 2 are relatively opened on both sides of the sealing box 1.

[0021] It should be noted that the insertion holes 2 on both sides of the sealing box 1 are for inserting two pipes. At the same time, the insertion holes 2 can also play a certain supporting and fixing effect after the pipes are inserted, which is convenient for connecting the two pipes. At the same time, in order to increase the sealing performance of the sealing box 1, it is necessary to first put a sealing ring on the connecting pipe, and connect the pipe and the insertion hole 2 through the sealing ring.

[0022] The connection mechanism 3 comprises a support plate 31, a sealing sleeve 32, a support disk 33, a support sleeve 34, a plurality of sealing strips 35 and a clamping assembly 36, wherein the support plate 31 is installed in the sealing box 1. The sealing sleeve 32 is installed on the top of the support plate 31.

[0023] It should be noted that the support sleeve 34 is made of a material with a certain support strength, so that when the pipeline is connected, the support sleeve 34 supports the pipeline to avoid deformation of the pipeline due to a large clamping force, which affects the quality of the pipeline connection.

[0024] The support plate 33 is installed in the sealing sleeve 32, and the support plate 33 is located in the middle of the sealing sleeve 32. The support sleeve 34 is located in the sealing sleeve 32, and the support sleeve 34 is connected to the sealing sleeve 32 through the support plate 33. A plurality of sealing strips 35 are respectively installed on the inner wall of the sealing sleeve 32 and the outer wall of the support sleeve 34.

[0025] It should be noted that the sealing strips 35 installed on the sealing sleeve 32 and the supporting sleeve 34 are arranged in a staggered manner.

[0026] The clamping assembly 36 is disposed in the sealing box 1 , and the clamping assembly 36 is connected to the sealing sleeve 32 .

[0027] Specifically, during the actual installation process, when two pipes need to be connected, the two pipes to be connected are first inserted into the sealing box 1 through the insertion holes 2 on both sides of the sealing box 1, and then the moving directions of the two ends of the pipes are adjusted in the sealing box 1 so that the two ends of the pipes enter the sealing sleeve 32. After the pipes enter the sealing sleeve 32, the sealing sleeve 32 is tightened by the clamping assembly 36, and then the connection of the pipes can be completed.

[0028] By connecting the pipes in a sleeve manner, the connection can be wrapped to achieve a protective effect and improve the connection quality between the two pipes. At the same time, the support sleeve 34 is used to support the pipe to ensure that the clamping force does not cause deformation of the pipe, further improving the reliability and stability of the pipe connection.

[0029] In one embodiment of the present application, Figure 4 As shown, the length of the sealing sleeve 32 is the same as the length of the supporting sleeve 34 .

[0030] In one embodiment of the present application, Figure 3 , Figure 5 and Figure 6As shown, the clamping assembly 36 includes two support rods 361, a first limiting rod 362, a second limiting rod 363, two sliding plates 364, two sliding grooves 365, a threaded cylinder 366, a threaded rod 367, a push plate 368, a plurality of shrinking cylinders 369, a plurality of shrinking rods 370, a push rod 371, a plurality of clamping bands 372 and a positioning component 373, wherein the two support rods 361 are relatively installed in the sealing box 1.

[0031] It should be noted that in order to prevent the threaded rod 367 from rotating when the threaded barrel 366 rotates, the push plate 368 and the second limiting rod 363 are connected, and the second limiting rod 363 is used to limit the push plate 368, thereby achieving the purpose of limiting the threaded rod 367.

[0032] The two ends of the first limiting rod 362 are respectively connected to the two supporting rods 361. The second limiting rod 363 is arranged below the first limiting rod 362. The two sliding plates 364 are installed on the two ends of the second limiting rod 363. The two sliding grooves 365 are provided on the corresponding supporting rods 361, and the two sliding grooves 365 are slidably connected to the corresponding sliding plates 364.

[0033] It should be noted that the sliding groove 365 cooperates with the sliding plate 364 to limit the second limiting rod 363 so that the second limiting rod 363 can only move up and down.

[0034] The threaded barrel 366 is installed on the support plate 31 , the threaded rod 367 is threadedly connected to the threaded barrel 366 , the push plate 368 is rotatably disposed on one end of the threaded rod 367 , and the second limiting rod 363 is connected to the push plate 368 .

[0035] It should be noted that, in the initial state, the second limiting rod 363 does not squeeze the clamping belt 372, and the portion of the clamping belt 372 above the second limiting rod 363 is in a relaxed state (eg, Figure 8 As shown), the path of the clamping band 372 can be changed with the help of the second limiting rod 363 (for example, the straight line between the two line segments is the shortest, and the distance is increased by changing the path, thereby tightening the clamping band 372), so that the clamping band 372 clamps the sealing sleeve 32.

[0036] The plurality of shrinking tubes 369 are disposed on the sealing sleeve 32, and the plurality of shrinking rods 370 are slidably disposed on the corresponding shrinking tubes 369. The pushing rod 371 is installed on one end of the plurality of shrinking rods 370, and the pushing rod 371 is located between the first limiting rod 362 and the second limiting rod 363.

[0037] It should be noted that the push rod 371 controls the length of the clamping band 372, and the position of the push rod 371 can be controlled to adjust the clamping force of the clamping band 372 on the sealing sleeve 32. When the push rod 371 drives the retracting rod 370 to slowly move out of the retracting tube 369, the clamping force on the sealing sleeve 32 can be slowly increased, otherwise the clamping force will be reduced.

[0038] The plurality of clamping bands 372 are sleeved on the sealing sleeve 32 and the pushing rod 371. The positioning component 373 is disposed inside the retracting rod 370.

[0039] In one embodiment of the present application, Figure 3 , Figure 5 and Figure 6 As shown, an extrusion plate is installed at one end of the plurality of shrink tubes 369 close to the sealing sleeve 32, and the extrusion plate is arc-shaped. The plurality of shrink tubes 369 are fixedly connected to the sealing sleeve 32 through the extrusion plate.

[0040] It should be noted that the arc-shaped extrusion plate is intended to improve the fit between the extrusion plate and the sealing sleeve 32, thereby making the pushing force of the extrusion plate on the sealing sleeve 32 more uniform. The pushing of the sealing sleeve 32 by the extrusion plate can also make the connection between the sealing sleeve 32 and the pipeline at the connection tighter, thereby reducing the connection dead angle.

[0041] In one embodiment of the present application, Figure 3 , Figure 5 and Figure 6 As shown, the plurality of clamping bands 372 are distributed in a linear array, and the plurality of clamping bands 372 are connected to the sealing sleeve 32 via elastic bands.

[0042] It should be noted that multiple clamping bands 372 are evenly distributed to form tightening at multiple locations, thereby improving the sealing effect.

[0043] In one embodiment of the present application, Figure 6 and Figure 7 As shown, the positioning component 373 includes multiple positioning plates 3731, multiple positioning rods 3732, multiple pulling springs 3733, multiple positioning disks 3734, multiple first pulling ropes 3735, second pulling ropes 3736 and multiple positioning grooves 3737, wherein the multiple positioning plates 3731 are installed on one end of the corresponding retraction rod 370.

[0044] It should be noted that one end of the multiple first pull ropes 3735 is connected to the second pull rope 3736 inside the push rod 371, and when the multiple first pull ropes 3735 need to be moved, the second pull rope 3736 outside the push rod 371 needs to be pulled, and then when the second pull rope 3736 is pulled, the multiple first pull ropes 3735 will be driven to move synchronously.

[0045] The plurality of positioning rods 3732 penetrate and slide in the corresponding positioning plates 3731. The plurality of pulling springs 3733 are respectively sleeved on the corresponding positioning rods 3732, and one end of the plurality of pulling springs 3733 is respectively connected to the corresponding positioning plates 3731.

[0046] It should be noted that the pulling spring 3733 continuously pulls the positioning plate 3734 , and the positioning plate 3734 then drives the positioning rod 3732 to be continuously in the positioning groove 3737 .

[0047] The plurality of positioning plates 3734 are respectively mounted on one end of the corresponding positioning rod 3732, and the plurality of positioning plates 3734 are respectively connected to the other end of the corresponding pulling spring 3733. The second pulling rope 3736 is slidably disposed in the pushing rod 371. One end of the plurality of first pulling ropes 3735 is connected to the corresponding positioning plate 3734, and the other end of the plurality of first pulling ropes 3735 is connected to the second pulling rope 3736. The plurality of positioning grooves 3737 are arranged in a linear array in the shrinking tube 369.

[0048] Specifically, in the actual operation process, the installed pipe needs to be tightened. When tightening, the second pulling rope 3736 is first pulled. The movement of the second pulling rope 3736 will drive the movement of the plurality of first pulling ropes 3735. The movement of the first pulling rope 3735 will drive the movement of the positioning plate 3734. Then, the positioning plate 3734 pulls the positioning rod 3732 so that the positioning rod 3732 is no longer in the positioning groove 3737. Then, the position of the pushing rod 371 can be adjusted. After the position of the pushing rod 371 is adjusted, By rotating the threaded cylinder 366, since the threaded rod 367 is threadedly connected to the threaded cylinder 366, the threaded rod 367 moves upward when the threaded cylinder 366 rotates. The upward movement of the threaded rod 367 drives the push plate 368 to move upward. The upward movement of the push plate 368 pushes the second limiting rod 363, and then the second limiting rod 363 pushes the clamping band 372, so that the clamping band 372 fits with the sealing sleeve 32, and at the same time, the clamping band 372 is gradually tightened, so as to achieve the purpose of clamping the sealing sleeve 32.

[0049] In one embodiment of the present application, Figure 6 and Figure 7As shown, the middle portion of the second pulling rope 3736 is located outside the pushing rod 371 .

[0050] It should be noted that the portion of the second pulling rope 3736 outside the push rod 371 is for the convenience of pulling the second pulling rope 3736. When pulling the second pulling rope 3736, it is necessary to pull it in an upward or downward direction.

[0051] In summary, the pipe connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system in the embodiment of the present application connects the pipes by means of a sleeve, which can wrap the connection and reduce the corrosion of foreign matter on the connection, thereby achieving a protective effect and improving the connection quality between the two pipes. At the same time, the support sleeve 34 is used to support the pipe to improve the pressure resistance of the pipe connection, further improve the reliability and stability of the pipe connection, and a sealing strip is used to ensure the sealing of the connection. By increasing the length of the connection, the pressure area is expanded to avoid deformation of the pipe connection caused by excessive local pressure, thereby enhancing the pressure resistance and being suitable for high-pressure pipe systems.

[0052] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A pipeline connection mechanism based on a solar photovoltaic thermal coupling buried pipe heat exchange system, characterized in that: It comprises a sealing box (1), two insertion holes (2) and a connecting mechanism (3), wherein: The two insertion holes (2) are arranged oppositely on two sides of the sealing box (1); The connection mechanism (3) comprises a support plate (31), a sealing sleeve (32), a support disc (33), a support sleeve (34), a plurality of sealing strips (35) and a clamping assembly (36), wherein: The support plate (31) is installed in the sealing box (1); The sealing sleeve (32) is installed on the top of the supporting plate (31); The support plate (33) is installed in the sealing sleeve (32), and the support plate (33) is located in the middle of the sealing sleeve (32); The support sleeve (34) is located inside the sealing sleeve (32), and the support sleeve (34) is connected to the sealing sleeve (32) via the support plate (33); The plurality of sealing strips (35) are respectively mounted on the inner wall of the sealing sleeve (32) and the outer wall of the supporting sleeve (34); The clamping assembly (36) is arranged in the sealing box (1), and the clamping assembly (36) is connected to the sealing sleeve (32).

2. The pipeline connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system according to claim 1 is characterized in that: The length of the sealing sleeve (32) is the same as the length of the supporting sleeve (34).

3. The pipeline connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system according to claim 1 is characterized in that: The clamping assembly (36) comprises two support rods (361), a first limiting rod (362), a second limiting rod (363), two sliding plates (364), two sliding grooves (365), a threaded cylinder (366), a threaded rod (367), a pushing plate (368), a plurality of shrinking cylinders (369), a plurality of shrinking rods (370), a pushing rod (371), a plurality of clamping bands (372) and a positioning component (373), wherein: The two support rods (361) are relatively mounted in the sealing box (1); Both ends of the first limiting rod (362) are respectively connected to the two supporting rods (361); The second limiting rod (363) is arranged below the first limiting rod (362); The two sliding plates (364) are mounted on two ends of the second limiting rod (363); The two sliding grooves (365) are formed on the corresponding support rods (361), and the two sliding grooves (365) are slidably connected to the corresponding sliding plates (364); The threaded barrel (366) is mounted on the support plate (31); The threaded rod (367) is threadedly connected to the threaded cylinder (366); The pushing plate (368) is rotatably disposed on one end of the threaded rod (367), and the second limiting rod (363) is connected to the pushing plate (368); A plurality of the shrinking tubes (369) are arranged on the sealing sleeve (32), and a plurality of the shrinking rods (370) are slidably arranged on corresponding shrinking tubes (369); The pushing rod (371) is mounted on one end of the plurality of contraction rods (370), and the pushing rod (371) is located between the first limiting rod (362) and the second limiting rod (363); A plurality of the clamping bands (372) are sleeved on the sealing sleeve (32) and the pushing rod (371); The positioning component (373) is arranged inside the retractable rod (370).

4. The pipeline connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system according to claim 3 is characterized in that: An extrusion plate is installed at one end of the plurality of shrinking tubes (369) close to the sealing sleeve (32); the extrusion plate is arc-shaped, and the plurality of shrinking tubes (369) are fixedly connected to the sealing sleeve (32) via the extrusion plate.

5. The pipeline connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system according to claim 3 is characterized in that: The plurality of clamping bands (372) are distributed in a linear array, and the plurality of clamping bands (372) are connected to the sealing sleeve (32) via an elastic band.

6. The pipeline connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system according to claim 3 is characterized in that: The positioning component (373) comprises a plurality of positioning plates (3731), a plurality of positioning rods (3732), a plurality of pulling springs (3733), a plurality of positioning disks (3734), a plurality of first pulling ropes (3735), a second pulling rope (3736) and a plurality of positioning grooves (3737), wherein: A plurality of positioning plates (3731) are mounted on one end of a corresponding retractable rod (370); A plurality of positioning rods (3732) penetrate and slide in corresponding positioning plates (3731); The plurality of pulling springs (3733) are respectively sleeved on the corresponding positioning rods (3732), and one end of the plurality of pulling springs (3733) is respectively connected to the corresponding positioning plates (3731); The plurality of positioning plates (3734) are respectively mounted on one end of the corresponding positioning rod (3732), and the plurality of positioning plates (3734) are respectively connected to the other end of the corresponding pulling spring (3733); The second pulling rope (3736) is slidably disposed in the pushing rod (371); One end of the plurality of first pulling ropes (3735) is connected to the corresponding positioning plate (3734), and the other end of the plurality of first pulling ropes (3735) is connected to the second pulling rope (3736); The plurality of positioning grooves (3737) are arranged in a linear array in the shrinking tube (369).

7. The pipeline connection mechanism based on the solar photovoltaic thermal coupling buried pipe heat exchange system according to claim 6 is characterized in that: The middle portion of the second pulling rope (3736) is located outside the pushing rod (371).

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