An easy-to-replace heat pump pipe connection device

Abstract

This invention discloses a heat pump pipe connection device that is easy to replace, relating to the technical field of pipe connection devices. It includes a telescopic connecting pipe and an adjusting mechanism for adjusting the length of the telescopic connecting pipe. The telescopic connecting pipe has a first connecting portion and a second connecting portion at both ends, which connect to a first pipe body and a second pipe body, respectively. The adjusting mechanism includes guide plates symmetrically and vertically arranged on both sides of the installation spacing, with connecting plates at the bottom of the two guide plates. During installation, the telescopic connecting pipe is simply connected to a cylindrical sliding seat via a snap-fit ​​structure. Then, the driving mechanism is activated to move the cylindrical sliding seat from the top to the bottom of the L-shaped guide groove. During disassembly, the driving mechanism is activated to move the cylindrical sliding seat from the bottom to the top of the L-shaped guide groove, and then the telescopic connecting pipe is removed. The entire installation and disassembly process is not only convenient but also simple, improving replacement efficiency and ease of operation.

Description

Technical Field

[0001] This invention relates to the field of pipe connection device technology, specifically to a heat pump pipe connection device that is easy to replace. Background Technology

[0002] Air source heat pumps transport water of varying heat levels through pipe connections. The problem with existing technology is that, since the heat pump pipes transport high-temperature media, the sealing gaskets at the connections age faster due to the high temperature, leading to leaks. Therefore, staff need to regularly inspect and replace the sealing gaskets at the connections. However, in conventional technologies, the connecting shaft is mostly connected to the pipe body with bolts, making it more troublesome to inspect and replace the sealing gaskets. Summary of the Invention

[0003] The purpose of this invention is to provide a heat pump pipe connection device that is easy to replace, so as to solve the problems mentioned in the background art.

[0004] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0005] The present invention provides a heat pump pipe connection device that is easy to replace, used to connect a first pipe body and a second pipe body. The first pipe body and the second pipe body are coaxial and have an installation gap between them. The device is characterized in that it includes a telescopic connecting pipe and an adjustment mechanism for adjusting the length of the telescopic connecting pipe. The two ends of the telescopic connecting pipe have a first connecting part and a second connecting part that are connected to the first pipe body and the second pipe body, respectively.

[0006] The adjustment mechanism includes guide plates symmetrically and vertically arranged on both sides of the installation spacing. A connecting plate is provided at the bottom of each guide plate, and both ends of the connecting plate are fixedly connected to the first and second pipe bodies respectively via fixing components. An L-shaped guide groove is symmetrically provided through each guide plate on one side opposite to the first and second pipe bodies. The L-shaped guide groove includes a first sliding groove extending downwards towards the side of the guide plate, and a second sliding groove connected to the bottom of the first sliding groove and extending horizontally towards the side of the guide plate. A cylindrical sliding seat is also fitted inside the L-shaped guide groove. The symmetrical cylindrical sliding seats between the two guide plates are connected to the side walls of the first and second connecting parts of the telescopic connecting pipe via a snap-fit ​​structure. The adjustment mechanism also includes a driving component for driving the cylindrical sliding seats to move within the guide groove.

[0007] After the telescopic connecting pipe is snapped into the cylindrical sliding seat through the snap-fit ​​structure, when the cylindrical sliding seat moves in the first sliding groove, the length of the telescopic connecting pipe is less than the installation spacing. When the cylindrical sliding seat is located in the second sliding groove, the telescopic connecting pipe is coaxial with the first pipe body. When the cylindrical sliding seat is located at the end of the second sliding groove away from the first sliding groove, the first pipe body is connected to the first connecting part, and the second pipe body is connected to the second connecting part.

[0008] Furthermore, the telescopic connecting pipe includes a first connector pipe and a second connector pipe that are nested together and can slide relative to each other. A sealing structure is provided at the opposite ends of the first connector pipe and the second connector pipe. A first recess and a second recess are respectively provided at the opposite ends of the first connector pipe and the second connector pipe. The first recess is adapted to the first pipe body, and a first sealing gasket is pre-installed inside the first recess. The second recess is adapted to the second pipe body, and a second sealing gasket is pre-installed inside the second recess. When the cylindrical sliding seat is located at the end of the second sliding groove away from the first sliding groove, the first pipe body is inserted into the first recess of the first connector pipe, and the second pipe body is inserted into the second recess of the first connector pipe. The first and second sealing gaskets pre-installed in the first and second recesses are compressed.

[0009] Furthermore, the sealing structure includes a first abutment ring disposed on the outer side of one end of the first connector tube relative to the second connector tube, a second abutment ring disposed on the inner side of one end of the second connector tube relative to the first connector tube, and a third sealing gasket disposed between the first abutment ring and the second abutment ring. The outer peripheral surface of the first abutment ring abuts against the inner wall of the second connector tube, and the inner peripheral surface of the second abutment ring abuts against the outer wall of the first connector tube.

[0010] Furthermore, the driving component includes four electric telescopic rods, which correspond to four guide slots. Two of the same guide plate are arranged between two guide slots. The fixed end of the electric telescopic rod is hinged to the guide plate, and the working end of the electric telescopic rod is hinged to the cylindrical sliding seat.

[0011] Furthermore, the snap-fit ​​structure includes a snap-fit ​​block disposed on the side of the cylindrical sliding seat near the first tube body, and snap-fit ​​grooves disposed on both sides of the first and second tube bodies that are adapted to the snap-fit ​​block.

[0012] Furthermore, the driving component includes a snap-fit ​​component and a disassembly component;

[0013] The snap-fit ​​component includes a first fixed post fixed to the side wall of the guide plate and located below the end of the second sliding groove away from the first sliding groove. A rocker arm is rotatably mounted on the first fixed post, and a compression spring is provided below the end of the rocker arm away from the first fixed post. The bottom end of the compression spring is connected to a fixed seat fixed to the guide plate. When the cylindrical sliding seat is located at the top of the first sliding groove, the top end of the rocker arm abuts against the bottom of the cylindrical sliding seat and is inclined, and the compression spring is in an uncompressed state. When the cylindrical sliding seat is located at the end of the second sliding groove away from the first sliding groove, the side of the rocker arm abuts against the side of the cylindrical sliding seat and is inclined, and the compression spring is in a compressed state.

[0014] The disassembly component includes a second fixed post fixed to the side wall of the guide plate and located above the end of the second sliding groove away from the first sliding groove. A lever is hinged to the second fixed post, with a deflecting end and a driving end at its two ends. A deflecting section is formed between the deflecting end of the lever and the second fixed post, and a driving section is formed between the driving end of the lever and the second fixed post. A third fixed post is also fixed to the side wall of the guide plate directly above the second fixed post. A guide wheel is rotatably mounted on the third fixed post, and a connecting rope is fixed to the driving end. The connecting rope is located away from the driving end. One end of the cylindrical sliding seat extends upward around the guide wheel and is connected to a crossbar. The crossbar slides in a sliding engagement with the guide plate through a sliding member and slides only in the vertical direction. Two crossbars on the same guide plate are connected to each other to form a pull rod. When the cylindrical sliding seat is located at the top of the first sliding groove, the actuating section of the lever abuts against the side wall of the cylindrical sliding seat away from the first sliding groove, and the driving section is inclined from the second fixed post to the driving end toward the first sliding groove. The lever can rotate around the second fixed post and push the cylindrical sliding seat into the bottom end of the first sliding groove through the actuating section.

[0015] Furthermore, a one-way rotation damper is provided on the lever and the second fixed post.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] During installation, this invention simply requires connecting the telescopic connecting pipe to the cylindrical sliding seat via a snap-fit ​​structure, then activating the drive mechanism to move the cylindrical sliding seat from the top of the L-shaped guide groove to the bottom of the L-shaped guide groove. During disassembly, the drive mechanism is activated to move the cylindrical sliding seat from the bottom of the L-shaped guide groove to the top of the L-shaped guide groove, and then the telescopic connecting pipe is removed. The entire installation and disassembly process is not only convenient but also simple, improving replacement efficiency and ease of operation.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] Figure 1 This is a schematic diagram of the installation state structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the disassembled structure of Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the telescopic connecting pipe structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the L-shaped guide groove structure of the present invention;

[0024] Figure 5 This is a schematic diagram of the installation state structure of Embodiment 2 of the present invention;

[0025] Figure 6 yes Figure 5 A partial structural diagram at point A;

[0026] Figure 7 This is a schematic diagram of the disassembled structure of Embodiment 2 of the present invention;

[0027] Figure 8 This is a schematic diagram of the first state structure of the cylindrical sliding seat according to Embodiment 2 of the present invention;

[0028] Figure 9 This is a schematic diagram of the second state structure of the cylindrical sliding seat according to Embodiment 2 of the present invention;

[0029] Figure 10 This is a schematic diagram of the second state structure of the cylindrical sliding seat according to Embodiment 3 of the present invention.

[0030] In the picture:

[0031] 100. First pipe body; 200. Second pipe body; 300. Telescopic connecting pipe; 400. Adjustment mechanism;

[0032] 310. First connector pipe; 311. First settling groove; 312. First sealing gasket; 320. Second connector pipe; 321. Second settling groove; 322. Second sealing gasket; 330. Sealing structure; 331. First abutment ring; 332. Second abutment ring; 333. Third sealing gasket;

[0033] 410. Guide plate; 420. Connecting plate; 430. L-shaped guide groove; 431. First sliding groove; 432. Second sliding groove; 440. Columnar sliding seat; 450. Snap-fit ​​structure; 451. Snap block; 452. Snap groove; 460. Driving component; 470. Fixing component;

[0034] 510. First fixed post; 520. Swing rod; 530. Return spring; 540. Fixed base;

[0035] 610. Second fixed post; 620. Lever; 621. Actuating end; 622. Driving end; 623. Driving section; 624. Actuating section; 630. Third fixed post; 640. Connecting rope; 650. Guide wheel; 660. Pull rod. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0037] Example 1, please refer to Figures 1-4 The present invention provides a heat pump pipe connection device that is easy to replace, for connecting a first pipe body 100 and a second pipe body 200. The first pipe body 100 and the second pipe body 200 are coaxially arranged and have an installation gap between them. The heat pump pipe connection device includes a telescopic connecting pipe 300 and an adjusting mechanism 400 for adjusting the length of the telescopic connecting pipe 300. The two ends of the telescopic connecting pipe 300 have a first connecting part and a second connecting part that are connected to the first pipe body 100 and the second pipe body 200, respectively. The telescopic connecting pipe 300 is a connector that connects the first pipe body 100 and the second pipe body 200. During installation, it can be adjusted by the adjusting mechanism 400 to a length less than the installation distance, so that it can be moved between the first pipe body 100 and the second pipe body 200 and remain coaxial with the first pipe body 100 and the second pipe body 200. Then, the telescopic connecting pipe 300 can be extended by the adjusting mechanism 400 and achieve a sealed connection with the first pipe body 100 and the second pipe body 200 through the first connecting part and the second connecting part.

[0038] Specifically, such as Figure 3As shown, the telescopic connecting pipe 300 includes a first connector pipe 310 and a second connector pipe 320 that are sleeved together and can slide relative to each other. A sealing structure 330 is provided at the opposite end of the first connector pipe 310 and the second connector pipe 320. A first groove 311 and a second groove 321 are respectively provided at the opposite ends of the first connector pipe 310 and the second connector pipe 320. The first groove 311 is adapted to the first pipe body 100, and a first sealing gasket 312 is pre-installed inside the first groove 311. The second groove 321 is adapted to the second pipe body 200, and a second sealing gasket 322 is pre-installed inside the second groove 321.

[0039] During installation, the length of the telescopic connecting pipe 300 is adjusted by the adjusting mechanism 400, so that the first pipe body 100 is inserted into the first recess 311 of the first connector pipe 310, and the second pipe body 200 is inserted into the second recess 321 of the first connector pipe 310. The first sealing gasket 312 and the second sealing gasket 322 pre-installed in the first recess 311 and the second recess 321 are compressed to achieve a seal at the connection.

[0040] Specifically, such as Figure 3 As shown, the sealing structure 330 includes a first abutment ring 331 disposed on the outer side of one end of the first connector tube 310 relative to the second connector tube 320, a second abutment ring 332 disposed on the inner side of one end of the second connector tube 320 relative to the first connector tube 310, and a third sealing gasket 333 disposed between the first abutment ring 331 and the second abutment ring 332. The outer circumferential surface of the first abutment ring 331 abuts against the inner wall of the second connector tube 320, and the inner circumferential surface of the second abutment ring abuts against the outer wall of the first connector tube 310. When the first sealing gasket 312 and the second sealing gasket 322 pre-installed in the first recess 311 and the second recess 321 are compressed, the first abutment ring 331 and the second abutment ring 332 cooperate to simultaneously compress the third sealing gasket 333, thus achieving a seal.

[0041] Of course, this is not the only possibility; the sealing structure 330 also includes other mechanisms that enable a seal between the first connector tube 310 and the second connector tube 320. For example, a seal between the first connector tube 310 and the second connector tube 320 can be achieved using a sliding sealing assembly in the prior art.

[0042] During operation, the heat pump pipeline transports a high-temperature medium, causing the gaskets at the joints to age rapidly due to the high temperature. Therefore, regular inspection and replacement of the gaskets are necessary. However, conventional technologies often use bolts to connect the connecting shaft to the pipe body, making gasket inspection and replacement cumbersome. To improve efficiency and ease of operation, this technical solution... Figures 1-4As shown, the adjustment mechanism 400 includes guide plates 410 symmetrically and vertically arranged on both sides of the installation spacing. A connecting plate 420 is provided at the bottom of the two guide plates 410. The two ends of the connecting plate 420 are fixedly connected to the first tube 100 and the second tube 200 respectively via fixing components 470. An L-shaped guide groove 430 is symmetrically provided on the guide plate 410 relative to the sides of the first tube 100 and the second tube 200. The L-shaped guide groove 430 includes a first sliding groove 431 extending obliquely from top to bottom towards the side of the guide plate 410, and a second sliding groove 432 connected to the bottom of the first sliding groove 431 and extending horizontally towards the side of the guide plate 410. A cylindrical sliding seat 440 is also fitted inside the L-shaped guide groove 430. The symmetrical cylindrical sliding seats 440 between the two guide plates 410 are respectively connected to the side walls of the first connector tube 310 and the second connector tube 320 of the telescopic connecting tube 300. The adjustment mechanism 400 is connected via a snap-fit ​​structure 450. It also includes a drive component 460 for driving the cylindrical sliding seat 440 to move within the L-shaped guide groove 430. After the telescopic connecting pipe 300 is snapped into the cylindrical sliding seat 440 via the snap-fit ​​structure 450, when the cylindrical sliding seat 440 moves in the first sliding groove 431, the length of the telescopic connecting pipe 300 is less than the installation spacing. When the cylindrical sliding seat 440 is located within the second sliding groove 432, the telescopic connecting pipe 300 is coaxial with the first pipe body 100. When the cylindrical sliding seat 440 is located at the end of the second sliding groove 432 away from the first sliding groove 431, the first pipe body 100 is inserted into the first recess 311 of the first connector pipe 310, and the second pipe body 200 is inserted into the second recess 321 of the first connector pipe 310. The first sealing gasket 312 and the second sealing gasket 322 pre-installed in the first recess 311 and the second recess 321 are compressed.

[0043] Based on the above design, before installation, the cylindrical sliding seat 440 is located at the top of the L-shaped guide groove 430, that is, the cylindrical sliding seat 440 is located at the top of the first sliding groove 431. At this time, it is only necessary to connect the first tube body 100 and the second tube body 200 of the telescopic connecting tube 300 to the corresponding cylindrical sliding seat 440 through the snap-fit ​​structure 450. Then, the cylindrical sliding seat 440 is moved to the bottom of the L-shaped guide groove 430 by the driving member 460, that is, the cylindrical sliding seat 440 is moved to the end of the second sliding groove 432 away from the first sliding groove 431, thus completing the connection of the first tube body 100 and the second tube body 200. Specifically, the principle is that the cylindrical sliding seat 440 has two displacements during its movement within the L-shaped guide groove 430. The first displacement occurs when the cylindrical sliding seat 440 moves from the top to the bottom of the first sliding groove 431. During this process, the distance between the two cylindrical sliding seats 440 on the same guide plate 410 continuously increases while their height continuously decreases, causing the telescopic connecting pipe 300 to extend in length and move downwards simultaneously. When the moving seat slides to the bottom of the first sliding groove 431, the telescopic connecting pipe 300 is exactly coaxial with the first pipe body 100, and the overall length of the telescopic connecting pipe 300 is still less than the installation spacing. The second displacement occurs when the cylindrical sliding seat 440 moves from one end of the second sliding groove 432 to its bottom. At the other end; during this process, the distance between the two cylindrical sliding seats 440 of the same guide plate 410 continuously increases while the height remains constant. The length of the telescopic connecting pipe 300 extends, causing the first pipe body 100 to be inserted into the first recess 311 of the first connector pipe 310, and the second pipe body 200 to be inserted into the second recess 321 of the first connector pipe 310. When the cylindrical sliding seat 440 moves to its other end, the first sealing gasket 312 and the second sealing gasket 322 pre-installed in the first recess 311 and the second recess 321 are compressed, completing the installation. As can be seen from the above, during disassembly, it is only necessary to use the driving component 460 to move the cylindrical sliding seat 440 from its bottom end to its top end in the L-shaped guide groove 430 to complete the disassembly.

[0044] During installation, the telescopic connecting pipe 300 is simply connected to the cylindrical sliding seat 440 via the snap-fit ​​structure 450. Then, the driving component 460 is activated to move the cylindrical sliding seat 440 from the top of the L-shaped guide groove 430 to the bottom of the L-shaped guide groove 430. During disassembly, the driving component 460 is activated to move the cylindrical sliding seat 440 from the bottom of the L-shaped guide groove 430 to the top of the L-shaped guide groove 430, and then the telescopic connecting pipe 300 is removed. The entire installation and disassembly process is not only convenient but also simple, improving replacement efficiency and ease of operation.

[0045] Specifically, such as Figure 1As shown, the driving component 460 includes four electric telescopic rods, each corresponding to one of the four L-shaped guide grooves 430. Two electric telescopic rods on the same guide plate 410 are inclinedly arranged between two L-shaped guide grooves 430. The fixed end of the electric telescopic rod is hinged to the guide plate 410, and the working end of the electric telescopic rod is hinged to the cylindrical sliding seat 440. In application, the cylindrical sliding seat 440 can slide along the L-shaped guide grooves 430 simply by synchronously driving the extension and retraction of the four electric telescopic rods.

[0046] Specifically, such as Figure 2 As shown, the snap-fit ​​structure 450 includes a snap-fit ​​block 451 disposed on the side of the cylindrical sliding seat 440 near the first tube 100, and snap-fit ​​grooves 452 disposed on both sides of the first tube 100 and the second tube 200, which are adapted to the snap-fit ​​block 451. In application, the first tube 100 and the second tube 200 are slid together so that the snap-fit ​​grooves 452 of the first tube 100 and the second tube 200 are aligned with the snap-fit ​​block 451, and then snapped in from above to complete the snap-fit. This design facilitates the disassembly of the telescopic connecting pipe 300 and the disassembly of the first connector pipe 310 and the second connector pipe 320 of the telescopic connecting pipe 300; that is, the third sealing gasket 333 can be removed and replaced by bidirectionally sliding the first connector pipe 310 and the second connector pipe 320.

[0047] Example 2, the difference between Example 2 and Example 1 is that;

[0048] like Figures 5-10 As shown, the drive component 460 includes a snap-fit ​​component and a disassembly component;

[0049] like Figure 6 As shown, the snap-fit ​​component includes a first fixed post 510 fixed to the side wall of the guide plate 410 and located below the end of the second sliding groove 432 away from the first sliding groove 431. A rocker arm 520 is rotatably mounted on the first fixed post 510, and a return spring 530 is located below the end of the rocker arm 520 away from the first fixed post 510. The bottom end of the return spring 530 is connected to a fixed seat 540 fixed to the guide plate 410. When the cylindrical sliding seat 440 is located at the top of the first sliding groove 431, the top end of the rocker arm 520 abuts against the bottom of the cylindrical sliding seat 440 and is inclined, and the return spring 530 is in an uncompressed state (see reference). Figure 10 As shown), when the cylindrical sliding seat 440 is located at the end of the second sliding groove 432 away from the first sliding groove 431, the side of the rocker arm 520 abuts against the side of the cylindrical sliding seat 440 and is inclined, and the return spring 530 is in a compressed state (as shown). Figure 8 (As shown).

[0050] Based on the above design, during installation, after the telescopic connecting pipe 300 is snapped into the cylindrical sliding seat 440, the cylindrical sliding seat 440 is simply snapped into place and pushed downwards. The cylindrical sliding seat 440 can move along the first sliding groove 431, causing the rocker arm 520 to rotate and compress the return spring 530. When the cylindrical sliding seat 440 moves to the bottom of the first sliding groove 431, the return spring 530 is compressed due to the inclined shape of the rocker arm 520. The force generated by the return spring 530 has an oblique thrust, and the cylindrical sliding seat 440 cannot move upwards. At this time, the cylindrical sliding seat 440 can be pushed to the other end of the second sliding groove 432, completing the quick installation work.

[0051] It should be noted that the design of the rocker arm 520 can amplify the torque when the cylindrical sliding seat 440 is located at the end of the second sliding groove 432 away from the first sliding groove 431. According to the lever principle, when the cylindrical sliding seat 440 is located at the end of the second sliding groove 432 away from the first sliding groove 431, the distance between the point where the rocker arm 520 abuts against the cylindrical sliding seat 440 and the fixed column is close. The return spring 530 generates a force that pushes the cylindrical sliding seat 440, which is much greater than the elastic force of the return spring itself at this time, thus ensuring the sealing after installation.

[0052] like Figure 6 As shown, the disassembly component includes a second fixed post 610 fixed to the side wall of the guide plate 410 and located above the end of the second sliding groove 432 away from the first sliding groove 431. A lever 620 is hinged to the second fixed post 610. The two ends of the lever 620 are actuating end 621 and driving end 622, respectively. An actuating section 624 is formed between the actuating end 621 of the lever 620 and the second fixed post 610, and a driving section 623 is formed between the driving end 622 of the lever 620 and the second fixed post 610. A third fixed post 630 is also fixed to the side wall of the guide plate 410 directly above the second fixed post 610. A guide wheel 650 is rotatably mounted on the third fixed post 630. A connecting rope 640 is fixed to the driving end 622. One end of the connecting rope 640 away from the drive end 622 extends upward around the guide wheel 650 and is connected to a crossbar. The crossbar slides in cooperation with the guide plate 410 through a sliding member and slides only in the vertical direction. Two crossbars on the same guide plate 410 are connected to each other to form a pull rod 660. When the cylindrical sliding seat 440 is located at the top of the first sliding groove 431, the actuating section 624 of the lever 620 abuts against the side wall of the cylindrical sliding seat 440 away from the first sliding groove 431, and the drive section 623 is inclined from the second fixed post 610 to the drive end 622 toward the first sliding groove 431. The lever 620 can rotate around the second fixed post 610 and push the cylindrical sliding seat 440 into the bottom end of the first sliding groove 431 through the actuating section 624.

[0053] Based on the above design, during disassembly, simply pull the crossbars at the two guide plates 410 upwards. As the crossbars move upwards, one end of the connecting rope 640 is pulled. This pull, through the steering of the guide wheel 650, causes the other end of the connecting rope 640 to pull the drive end 622 of the lever 620 towards the third fixed post 630. This causes the lever 620 to rotate around the second fixed post 610, thereby using the actuating section 624 to push the cylindrical sliding seat 440 along the second sliding groove 432 towards one end of the first sliding groove 431. This allows the cylindrical sliding seat 440 to move into the bottom end of the first sliding groove 431. Once the cylindrical sliding seat 440 is in the bottom end of the first sliding groove 431, it is pushed by the force of the swing rod 520, causing the swing rod 520 to oscillate and push the cylindrical sliding seat 440 into the top end of the first sliding groove 431 (see reference). Figures 8-10 As shown), at this point, the operator only needs to remove the telescopic part (as shown). Figure 7 (As shown).

[0054] It should be noted that the design of lever 620 also adopts the lever principle, which amplifies the upward pulling effect of the lever, making it easier for lever 620 to push sliding seat 440 from the first sliding groove 432 into the first sliding 431.

[0055] Furthermore, a one-way rotational damper is provided on the lever 620 and the second fixed post 610. During installation, (refer to...) Figures 10-8 (As shown) When the cylindrical sliding seat 440 moves to the bottom of the first sliding groove 431, the return spring 530 pushes the rocker arm 520 to deflect, so that when the cylindrical sliding seat 440 slides along the second sliding groove 432, the one-way rotation damper can generate damping, slowing down the sliding speed of the cylindrical sliding seat 440 in the second sliding groove 432, so as to avoid excessive speed, causing the telescopic connecting pipe 300 to collide with the first pipe body 100 and the second pipe body 200.

[0056] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A heat pump pipe connecting device for connecting a first pipe body and a second pipe body, the first pipe body and the second pipe body being coaxial, and having a mounting interval between the first pipe body and the second pipe body, characterized by, The application relates to a telescopic connecting pipe and an adjusting mechanism for adjusting the length of the telescopic connecting pipe, wherein the two ends of the telescopic connecting pipe are respectively provided with a first connecting part and a second connecting part connected with a first pipe body and a second pipe body. The adjusting mechanism comprises two guide plates vertically arranged symmetrically on both sides of the installation interval, the bottom of each guide plate is provided with a connecting plate, the two ends of the connecting plate are fixedly connected with the first pipe body and the second pipe body through fixing assemblies, L-shaped guide grooves are symmetrically arranged on the guide plates opposite to the first pipe body and the second pipe body, the L-shaped guide grooves comprise first sliding grooves formed by extending from top to bottom and towards the proximal side of the guide plate, and second sliding grooves connected with the bottom end of the first sliding grooves and horizontally extending towards the proximal side of the guide plate, cylindrical sliding seats are further arranged in the L-shaped guide grooves, and the cylindrical sliding seats on both sides of the guide plates are connected with the side walls of the first connecting part and the second connecting part of the telescopic connecting pipe through clamping structures; the adjusting mechanism further comprises a driving member for driving the cylindrical sliding seats to move in the guide grooves. When the cylindrical sliding seat moves in the first sliding groove, the length of the telescopic connecting pipe is smaller than the installation interval, when the cylindrical sliding seat is located in the second sliding groove, the telescopic connecting pipe is coaxial with the first pipe body, and when the cylindrical sliding seat is located at the end of the second sliding groove away from the first sliding groove, the first pipe body is connected with the first connecting part, and the second pipe body is connected with the second connecting part. The telescopic connecting pipe comprises a first joint pipe and a second joint pipe which are sleeved with each other and can slide relative to each other, and the opposite ends of the first joint pipe and the second joint pipe are provided with sealing structures; the sealing structure comprises a first abutting ring arranged on the outer side of one end of the first joint pipe relative to the second joint pipe, a second abutting ring arranged on the inner side of one end of the second joint pipe relative to the first joint pipe, and a third sealing gasket arranged between the first abutting ring and the second abutting ring; the outer circumferential surface of the first abutting ring abuts against the inner wall of the second joint pipe, and the inner circumferential surface of the second abutting ring abuts against the outer wall of the first joint pipe. The driving member comprises a clamping component and a dismounting component. The clamping component comprises a first fixing column fixed on the side wall of the guide plate and located below the end of the second sliding groove away from the first sliding groove, a swing rod is rotationally arranged on the first fixing column, a compression spring is arranged below the end of the swing rod away from the first fixing column, and the bottom end of the compression spring is connected with a fixing seat fixed on the guide plate; when the cylindrical sliding seat is located at the top end of the first sliding groove, the top end of the swing rod abuts against the cylindrical sliding seat below and is inclined, and the compression spring is in an uncompressed state; when the cylindrical sliding seat is located at the end of the second sliding groove away from the first sliding groove, the side surface of the swing rod abuts against the side of the cylindrical sliding seat and is inclined, and the compression spring is in a compressed state. The dismounting part comprises a second fixed column fixed on the side wall of the guide plate and above the end of the second sliding groove away from the first sliding groove, a push rod hinged on the second fixed column, the two ends of the push rod being a pushing end and a driving end respectively, a pushing section formed between the pushing end of the push rod and the second fixed column, a driving section formed between the driving end of the push rod and the second fixed column, a third fixed column fixed on the side wall of the guide plate directly above the second fixed column, a guide wheel rotatably arranged on the third fixed column, a connecting rope fixed on the driving end, and a horizontal rod connected to the end of the connecting rope away from the driving end and extending upwards around the guide wheel, the horizontal rod being in sliding cooperation with the guide plate and only sliding in the vertical direction, and two horizontal rods on the same guide plate being connected to form a pull rod; when the cylindrical sliding seat is located at the top end of the first sliding groove, the pushing section of the push rod abuts against the side wall of the cylindrical sliding seat away from the first sliding groove, the driving section is inclined from the second fixed column to the driving end towards the first sliding groove, and the push rod can rotate around the second fixed column to push the cylindrical sliding seat to move into the bottom end of the first sliding groove through the pushing section.

2. The heat pump duct connection device for easy replacement of claim 1, wherein, The first joint pipe and the second joint pipe are respectively provided with a first sunken groove and a second sunken groove at the end away from each other, the first sunken groove is matched with the first pipe body, and the first sunken groove is pre-installed with a first sealing gasket inside, the second sunken groove is matched with the second pipe body, and the second sunken groove is pre-installed with a second sealing gasket inside; when the cylindrical sliding seat is located at the end of the second sliding groove away from the first sliding groove, the first pipe body is inserted into the first sunken groove of the first joint pipe, the second pipe body is inserted into the second sunken groove of the first joint pipe, and the first sealing gasket and the second sealing gasket pre-installed in the first sunken groove and the second sunken groove are compressed.

3. The easy to replace heat pump duct connection of claim 1, wherein, The driving part comprises four electric telescopic rods corresponding to the four guide grooves, two of the same guide plate being arranged between two guide grooves, the fixed end of the electric telescopic rod being hinged with the guide plate, and the working end of the electric telescopic rod being hinged with the cylindrical sliding seat.

4. The easy-to-replace heat pump duct connection of claim 1, wherein, The clamping structure comprises a clamping block arranged on the side of the cylindrical sliding seat close to the first pipe body, and a clamping groove arranged on the two sides of the first pipe body and the second pipe body and matched with the clamping block.

5. The easy to replace heat pump duct connection of claim 1, wherein, The push rod and the second fixed column are provided with a one-way rotation damper.

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