Forming and cooling mechanism for plastic corrugated pipe production

Abstract

The utility model provides a kind of forming cooling mechanism for plastic corrugated pipe production, it is related to cooling mechanism technical field, the utility model includes cooling mechanism main part, the inner wall of cooling mechanism main part is fixedly connected with cylinder, the surface of cylinder is equipped with spiral pipe, water pump is installed in the both ends of spiral pipe, the side of water pump away from spiral pipe is provided with connecting pipe, the side of the storage tank of the one side of cooling mechanism main part is installed, connecting pipe is inserted in the one side of storage tank, the bottom of storage tank is fixedly connected with support frame, the one side of cooling mechanism main part is provided with support device, the one side of cooling mechanism main part is provided with protection device, the support device includes arc plate, when using support device, manually control connecting frame is slid on the surface of connecting strip, to drive arc plate to move to suitable position in the inner wall of cylinder, to make that arc plate can be well supported by corrugated pipe.

Description

Technical Field

[0001] This utility model relates to the field of cooling mechanism technology, and in particular to a cooling mechanism. Background Technology

[0002] A cooling mechanism is a device used in the production of plastic corrugated pipes to cool the corrugated pipes. When using the cooling mechanism, the newly formed plastic corrugated pipe is squeezed into the cooling mechanism, and a water pump draws water from the storage tank into the spiral pipe. Because the spiral pipe is fitted inside the cylinder, the cold water circulates inside the spiral pipe, which carries away the heat from the surface of the corrugated pipe to a certain extent, thus allowing the corrugated pipe to be cooled effectively.

[0003] The inventors discovered in their daily work that the cooling mechanism still has at least the following problems: When using the cooling mechanism, the newly formed plastic corrugated pipe is squeezed into the interior of the cooling mechanism, and the water pump draws water from the storage tank into the interior of the spiral pipe. Because the spiral pipe is fitted inside the cylinder, the cold water circulates inside the spiral pipe, which to some extent removes heat from the surface of the corrugated pipe, thus allowing the corrugated pipe to be cooled well. However, in actual use, when the corrugated pipe is squeezed into the interior of the cylinder, it will be in close contact with the inner wall of the cylinder, which will affect the cooling of the corrugated pipe to some extent. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a molding and cooling mechanism for the production of plastic corrugated pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a molding and cooling mechanism for producing plastic corrugated pipes, comprising a cooling mechanism body, a cylinder fixedly connected to the inner wall of the cooling mechanism body, a spiral tube sleeved on the surface of the cylinder, water pumps installed at both ends of the spiral tube, a connecting pipe provided on the side of the water pump away from the spiral tube, a storage box installed on one side of the cooling mechanism body, the connecting pipe being inserted through and into one side of the storage box, a support frame fixedly connected to the bottom of the storage box, a support device provided on one side of the cooling mechanism body, a protective device provided on one side of the cooling mechanism body, the support device including an arc plate, the arc plate being disposed on the inner wall of the cylinder, a connecting frame fixedly connected to one side of the arc plate, a connecting strip fixedly connected to the bottom of the cooling mechanism body, the connecting strip being slidably inserted through and into one side of the connecting frame, and a rubber strip fixedly connected to one side of the connecting strip.

[0006] The effect achieved by the above components is as follows: when using the support device, the connecting frame is manually controlled to slide on the surface of the connecting strip, thereby driving the arc plate to move to a suitable position on the inner wall of the cylinder, so that the arc plate can support the bellows well and avoid the bellows from contacting the inner wall of the cylinder to a certain extent.

[0007] Preferably, the top of the arc plate is uniformly provided with grooves, and the top of the arc plate is uniformly provided with balls.

[0008] The effect achieved by the above components is as follows: the corrugated pipe is set on the top of the arc plate, and the groove can effectively reduce the contact area between the corrugated pipe and the arc plate. When the corrugated pipe moves on the arc plate, it will drive the ball bearings to roll, so that the corrugated pipe can move well on the top of the arc plate.

[0009] Preferably, a first damping rod is fixedly connected to the bottom of the cooling mechanism body, the bottom of the first damping rod is fixedly connected to the top of one side of the connecting frame, a first spring is sleeved on the surface of the first damping rod, one end of the first spring is fixedly connected to the bottom of the cooling mechanism body, and the end of the first spring near the first damping rod is fixedly connected to the top of one side of the connecting frame.

[0010] The effect achieved by the above components is that the connecting frame is pulled closer to the main body of the cooling mechanism by the first spring, so that the arc plate can be well set inside the cylinder.

[0011] Preferably, a second damping rod is fixedly connected to the top of one side of the connecting frame, a rectangular block is fixedly connected to the top of the second damping rod, a second spring is sleeved on the surface of the second damping rod, one end of the second spring is fixedly connected to the top of one side of the connecting frame, the end of the second spring near the second damping rod is fixedly connected to the bottom of the rectangular block, a third damping rod is fixedly connected to one side of the rectangular block, a triangular block is fixedly connected to the end of the third damping rod away from the rectangular block, a third spring is sleeved on the surface of the third damping rod, one end of the third spring is fixedly connected to one side of the rectangular block, the end of the third spring near the third damping rod is fixedly connected to one side of the triangular block, and protrusions are uniformly fixedly connected to one side of the triangular block, the protrusions being fitted onto one side of the rubber strip.

[0012] The effect achieved by the above components is as follows: when the connecting frame moves to the appropriate position on the surface of the connecting strip, the third spring presses the triangular block towards the connecting strip, thereby causing the protrusion to press against one side of the rubber strip. Then, the second spring pulls the rectangular block towards the connecting frame, thereby causing the triangular block to be inserted into the gap between the connecting strip and the connecting frame, thus effectively fixing the connecting frame to the surface of the connecting strip.

[0013] Preferably, the protective device includes an asbestos board, which is disposed on one side of the main body of the cooling mechanism. A rectangular strip is fixedly connected to the top of the asbestos board, and a limiting frame is slidably fitted on the surface of the rectangular strip. The limiting frame is fixedly connected to the top of the main body of the cooling mechanism.

[0014] The effect achieved by the above components is as follows: When using the protective device, the rectangular bar is manually controlled to slide on the inner wall of the limiting frame, thus placing the asbestos board in the middle between the main body of the cooling mechanism and the corrugated pipe extrusion structure. Because the temperature of the corrugated pipe extrusion structure is relatively high, the asbestos board is mainly composed of asbestos fibers and other materials (such as rubber and fillers). Asbestos is a natural mineral fiber, mainly composed of silicate minerals, and has extremely high high temperature resistance. This can, to a certain extent, prevent one end of the main body of the cooling mechanism from being heated and affecting the cooling effect.

[0015] Preferably, an L-shaped plate is fixedly connected to the end of the rectangular strip away from the asbestos board, and the L-shaped plate is disposed on one side of the cooling mechanism body.

[0016] The effect achieved by the above components is that the L-shaped plate can effectively control the sliding of the rectangular strip on the inner wall of the limiting frame.

[0017] Preferably, a connecting frame is fixedly connected to one side of the main body of the cooling mechanism. The inner wall of the connecting frame is slidably connected to one end of the L-shaped plate. A fourth damping rod is fixedly connected to one side of the inner wall of the connecting frame. The end of the fourth damping rod near the inside of the connecting frame is fixedly connected to one side of the L-shaped plate. A fourth spring is sleeved on the surface of the fourth damping rod. One end of the fourth spring is fixedly connected to one side of the inner wall of the connecting frame. The end of the fourth spring near the fourth damping rod is fixedly connected to one side of the L-shaped plate. A fixing plate is fixedly connected to one side of the L-shaped plate. The fixing plate is slidably inserted through one side of the inner wall of the connecting frame.

[0018] The effect achieved by the above components is that the L-shaped plate is pulled towards the inner wall of the connecting frame by the fourth spring, which can effectively place the asbestos plate on one side of the cooling mechanism body.

[0019] Preferably, a bolt is threaded through one side of the connecting frame, one end of the bolt is located on one side of the fixing plate, and a fifth damping rod is fixedly connected to one end of the bolt. The end of the fifth damping rod near the bolt is located on one side of the connecting frame, and a fifth spring is sleeved on the surface of the fifth damping rod. One end of the fifth spring is fixedly connected to one end of the bolt, and the end of the fifth spring near the fifth damping rod is fixedly connected to the end of the fifth damping rod near the bolt.

[0020] The effect achieved by the above components is as follows: when the fixed plate is moved to the appropriate position, the bolt is manually controlled to rotate, thereby pressing the bolt against one side of the fixed plate. Then, the fifth spring drives one end of the fifth damping rod to press against one side of the connecting frame, which makes it easier to confine the bolt inside the connecting frame.

[0021] In this invention, by setting up a support device, when using the support device, the connecting frame is manually controlled to slide on the surface of the connecting strip, thereby driving the arc plate to move to a suitable position on the inner wall of the cylinder, so that the arc plate can support the corrugated pipe well and avoid the corrugated pipe from contacting the inner wall of the cylinder to a certain extent. Attached Figure Description

[0022] Figure 1 This utility model provides a three-dimensional structural diagram of a molding and cooling mechanism for the production of plastic corrugated pipes;

[0023] Figure 2 A three-dimensional structural diagram of the novel arc plate proposed in this utility model is provided.

[0024] Figure 3 A three-dimensional structural diagram of the novel triangular block proposed in this utility model is provided.

[0025] Figure 4 A three-dimensional structural diagram of the novel asbestos board proposed in this utility model is provided.

[0026] Legend: 1. Cooling mechanism body; 2. Cylinder; 3. Spiral tube; 4. Water pump; 5. Connecting pipe; 6. Storage box; 7. Support frame; 8. Support device; 801. Arc plate; 802. Connecting frame; 803. Connecting strip; 804. Groove; 805. Ball bearing; 806. First damping rod; 807. First spring; 808. Rubber strip; 809. Triangular block; 810. Protrusion; 811. Third damping rod; 812. Third spring; 813. Rectangular block; 814. Second damping rod; 815. Second spring; 9. Protective device; 901. Asbestos board; 902. Rectangular strip; 903. Limiting frame; 904. L-shaped plate; 905. Connecting frame; 906. Fourth damping rod; 907. Fourth spring; 908. Fixing plate; 909. Bolt; 910. Fifth damping rod; 911. Fifth spring. Detailed Implementation

[0027] Example 1, as Figure 1-4As shown, a molding and cooling mechanism for producing plastic corrugated pipes includes a cylinder 2 fixedly connected to the inner wall of the main body 1 of the cooling mechanism. A spiral tube 3 is fitted onto the surface of the cylinder 2. Water pumps 4 are installed at both ends of the spiral tube 3. A connecting pipe 5 is provided on the side of the water pump 4 away from the spiral tube 3. A storage tank 6 is installed on one side of the main body 1 of the cooling mechanism. The connecting pipe 5 is inserted through one side of the storage tank 6. A support frame 7 is fixedly connected to the bottom of the storage tank 6. A support device 8 and a protective device 9 are provided on one side of the main body 1 of the cooling mechanism. When using the cooling mechanism, the newly molded plastic corrugated pipe is squeezed into the interior of the cooling mechanism. The water pump 4 draws water from the storage tank 6 into the spiral tube 3. Because the spiral tube 3 is fitted inside the cylinder 2, the cold water circulates inside the spiral tube 3, which to some extent removes heat from the surface of the corrugated pipe, thus effectively cooling the corrugated pipe.

[0028] Reference Figure 2 and Figure 3The support device 8 includes an arc plate 801, which is disposed on the inner wall of the cylinder 2. A connecting frame 802 is fixedly connected to one side of the arc plate 801. A connecting strip 803 is fixedly connected to the bottom of the cooling mechanism body 1. The connecting strip 803 is slidably inserted through one side of the connecting frame 802. A rubber strip 808 is fixedly connected to one side of the connecting strip 803. When using the support device 8, the connecting frame 802 is manually controlled to slide on the surface of the connecting strip 803, thereby moving the arc plate 801 to a suitable position on the inner wall of the cylinder 2. This allows the arc plate 801 to effectively support the bellows and, to a certain extent, prevent the bellows from contacting the inner wall of the cylinder 2. Grooves 804 are evenly distributed on the top of the arc plate 801. Roller balls 805 are evenly distributed on the top of plate 801. A bellows is located on the top of the arc plate 801. The groove 804 effectively reduces the contact area between the bellows and the arc plate 801. When the bellows moves on the arc plate 801, it drives the roller balls 805 to roll, allowing the bellows to move smoothly on the top of the arc plate 801. A first damping rod 806 is fixedly connected to the bottom of the cooling mechanism body 1. The bottom of the first damping rod 806 is fixedly connected to the top of one side of the connecting frame 802. A first spring 807 is sleeved on the surface of the first damping rod 806. One end of the first spring 807 is fixedly connected to the bottom of the cooling mechanism body 1, and the end of the first spring 807 near the first damping rod 806 is connected to the connecting frame. The top of one side of the connecting frame 802 is fixedly connected. A first spring 807 pulls the connecting frame 802 towards the cooling mechanism body 1, allowing the arc plate 801 to be properly positioned inside the cylinder 2. A second damping rod 814 is fixedly connected to the top of one side of the connecting frame 802. A rectangular block 813 is fixedly connected to the top of the second damping rod 814. A second spring 815 is sleeved on the surface of the second damping rod 814. One end of the second spring 815 is fixedly connected to the top of one side of the connecting frame 802. The end of the second spring 815 near the second damping rod 814 is fixedly connected to the bottom of the rectangular block 813. A third damping rod 811 is fixedly connected to one side of the rectangular block 813. The end of the third damping rod 811 away from the rectangular block 813 is fixed... A triangular block 809 is connected to a third damping rod 811, on which a third spring 812 is fitted. One end of the third spring 812 is fixedly connected to one side of a rectangular block 813. The end of the third spring 812 near the third damping rod 811 is fixedly connected to one side of the triangular block 809. A protrusion 810 is evenly fixedly connected to one side of the triangular block 809, and the protrusion 810 is fitted onto one side of the rubber strip 808. When the connecting frame 802 moves to a suitable position on the surface of the connecting strip 803, the third spring 812 presses the triangular block 809 towards the connecting strip 803, thereby pressing the protrusion 810 against one side of the rubber strip 808. Then, the second spring 815 pulls the rectangular block 813 towards the connecting frame 802.This allows the triangular block 809 to be inserted into the gap between the connecting strip 803 and the connecting bracket 802, thus effectively fixing the connecting bracket 802 to the surface of the connecting strip 803.

[0029] Reference Figure 4The protective device 9 includes an asbestos board 901, which is disposed on one side of the cooling mechanism body 1. A rectangular strip 902 is fixedly connected to the top of the asbestos board 901, and a limiting frame 903 is slidably fitted onto the surface of the rectangular strip 902. The limiting frame 903 is fixedly connected to the top of the cooling mechanism body 1. When using the protective device 9, the rectangular strip 902 is manually controlled to slide on the inner wall of the limiting frame 903, thus placing the asbestos board 901 between the cooling mechanism body 1 and the corrugated pipe extrusion structure. Because the temperature of the corrugated pipe extrusion structure is relatively high, the asbestos board 901 is mainly composed of asbestos fibers and other materials such as rubber and fillers. Asbestos is a natural mineral fiber, mainly composed of silicate minerals, and has extremely high... High temperature resistance helps to prevent one end of the cooling mechanism body 1 from being heated and affecting the cooling effect. An L-shaped plate 904 is fixedly connected to the end of the rectangular bar 902 away from the asbestos board 901. The L-shaped plate 904 is located on one side of the cooling mechanism body 1. The L-shaped plate 904 effectively controls the sliding of the rectangular bar 902 on the inner wall of the limiting frame 903. A connecting frame 905 is fixedly connected to one side of the cooling mechanism body 1. The inner wall of the connecting frame 905 is slidably connected to one end of the L-shaped plate 904. A fourth damping rod 906 is fixedly connected to one side of the inner wall of the connecting frame 905. The end of the fourth damping rod 906 closest to the inside of the connecting frame 905 is fixedly connected to one side of the L-shaped plate 904. The surface of the fourth damping rod 906... The faceplate is equipped with a fourth spring 907. One end of the fourth spring 907 is fixedly connected to one side of the inner wall of the connecting frame 905. The end of the fourth spring 907 near the fourth damping rod 906 is fixedly connected to one side of the L-shaped plate 904. A fixing plate 908 is fixedly connected to one side of the L-shaped plate 904. The fixing plate 908 is slidably inserted through one side of the inner wall of the connecting frame 905. By pulling one side of the L-shaped plate 904 towards the inner wall of the connecting frame 905 through the fourth spring 907, the asbestos board 901 can be properly positioned on one side of the cooling mechanism body 1. A bolt 909 is threaded through one side of the connecting frame 905. One end of the bolt 909 is located on one side of the fixing plate 908 and is fixedly connected to one side of the connecting frame 905. The fifth damping rod 910 is located on one side of the connecting frame 905, with one end of the fifth damping rod 910 near the bolt 909. A fifth spring 911 is fitted on the surface of the fifth damping rod 910, with one end of the fifth spring 911 fixedly connected to one end of the bolt 909. When the fixing plate 908 moves to the appropriate position, the bolt 909 is manually rotated, causing the bolt 909 to be pressed against one side of the fixing plate 908. Then, the fifth spring 911 drives one end of the fifth damping rod 910 to be pressed against one side of the connecting frame 905, thus confining the bolt 909 inside the connecting frame 905.

[0030] Working principle: When using the cooling mechanism, the newly formed plastic corrugated pipe is squeezed into the interior of the cooling mechanism. The water pump 4 draws water from the storage tank 6 into the spiral pipe 3. Because the spiral pipe 3 is fitted inside the cylinder 2, the cold water circulates inside the spiral pipe 3, which to some extent removes heat from the surface of the corrugated pipe, thus effectively cooling the corrugated pipe. When using the support device 8, the connecting frame 802 is manually controlled to slide on the surface of the connecting strip 803. The first spring 807 pulls the connecting frame 802 towards the cooling mechanism body 1, allowing the arc plate 801 to be properly positioned inside the cylinder 2, thereby driving the arc plate 801... 1. The connecting frame 802 moves to a suitable position on the inner wall of the cylinder 2. When the connecting frame 802 moves to a suitable position on the surface of the connecting strip 803, the third spring 812 presses the triangular block 809 towards the connecting strip 803, thereby causing the protrusion 810 to press against one side of the rubber strip 808. Then, the second spring 815 pulls the rectangular block 813 towards the connecting frame 802, thereby causing the triangular block 809 to be inserted into the gap between the connecting strip 803 and the connecting frame 802, thus effectively fixing the connecting frame 802 to the surface of the connecting strip 803. This allows the arc plate 801 to effectively support the bellows, as the groove 804 can effectively... To reduce the contact area between the bellows and the arc plate 801, when the bellows moves on the arc plate 801, it will cause the ball bearing 805 to roll, thus allowing the bellows to move well on the top of the arc plate 801. This avoids the bellows from contacting the inner wall of the cylinder 2 to a certain extent. When using the protective device 9, the rectangular bar 902 is manually controlled to slide on the inner wall of the limiting frame 903. The fourth spring 907 pulls one side of the L-shaped plate 904 closer to the inner wall of the connecting frame 905, which can effectively place the asbestos board 901 on one side of the cooling mechanism body 1. This places the asbestos board 901 between the cooling mechanism body 1 and the bellows extrusion structure. When the fixed plate 908 is moved to the appropriate position, the bolt 909 is manually rotated, which causes the bolt 909 to be pressed against one side of the fixed plate 908. Then, the fifth spring 911 drives one end of the fifth damping rod 910 to be pressed against one side of the connecting frame 905. This makes it easier to restrict the bolt 909 inside the connecting frame 905. Because the temperature of the corrugated pipe extrusion structure is relatively high, the asbestos board 901 is mainly composed of asbestos fiber and other materials such as rubber and fillers. Asbestos is a natural mineral fiber, mainly composed of silicate minerals, and has extremely high high temperature resistance. This can, to a certain extent, prevent one end of the cooling mechanism body 1 from being heated and affecting the cooling effect.

[0031] It should be noted that all damping rods in this case are telescopic dampers, which can absorb energy during the extension and retraction process.

Claims

1. A molding and cooling mechanism for producing plastic corrugated pipes, comprising a cooling mechanism body (1), characterized in that: A cylinder (2) is fixedly connected to the inner wall of the main body (1) of the cooling mechanism. A spiral tube (3) is sleeved on the surface of the cylinder (2). Water pumps (4) are installed at both ends of the spiral tube (3). A connecting pipe (5) is provided on the side of the water pump (4) away from the spiral tube (3). A storage box (6) is installed on one side of the main body (1) of the cooling mechanism. The connecting pipe (5) is inserted through one side of the storage box (6). A support frame (7) is fixedly connected to the bottom of the storage box (6). A support is provided on one side of the main body (1) of the cooling mechanism. The device (8) has a protective device (9) on one side of the main body (1) of the cooling mechanism. The support device (8) includes an arc plate (801), which is set on the inner wall of the cylinder (2). A connecting frame (802) is fixedly connected to one side of the arc plate (801). A connecting strip (803) is fixedly connected to the bottom of the main body (1) of the cooling mechanism. The connecting strip (803) is slidably inserted through one side of the connecting frame (802). A rubber strip (808) is fixedly connected to one side of the connecting strip (803).

2. The molding and cooling mechanism for producing plastic corrugated pipes according to claim 1, characterized in that: The top of the arc plate (801) is uniformly provided with grooves (804), and the top of the arc plate (801) is uniformly provided with balls (805).

3. The molding and cooling mechanism for producing plastic corrugated pipes according to claim 1, characterized in that: A first damping rod (806) is fixedly connected to the bottom of the cooling mechanism body (1). The bottom of the first damping rod (806) is fixedly connected to the top of one side of the connecting frame (802). A first spring (807) is sleeved on the surface of the first damping rod (806). One end of the first spring (807) is fixedly connected to the bottom of the cooling mechanism body (1). The end of the first spring (807) near the first damping rod (806) is fixedly connected to the top of one side of the connecting frame (802).

4. The molding and cooling mechanism for producing plastic corrugated pipes according to claim 1, characterized in that: A second damping rod (814) is fixedly connected to the top of one side of the connecting frame (802). A rectangular block (813) is fixedly connected to the top of the second damping rod (814). A second spring (815) is sleeved on the surface of the second damping rod (814). One end of the second spring (815) is fixedly connected to the top of one side of the connecting frame (802). The end of the second spring (815) near the second damping rod (814) is fixedly connected to the bottom of the rectangular block (813). A third damping rod (811) is fixedly connected to one side of the rectangular block (813). The third damping rod (811) is fixedly connected to a triangular block (809) at one end away from the rectangular block (813). A third spring (812) is sleeved on the surface of the third damping rod (811). One end of the third spring (812) is fixedly connected to one side of the rectangular block (813). The end of the third spring (812) near the third damping rod (811) is fixedly connected to one side of the triangular block (809). A protrusion (810) is evenly fixedly connected to one side of the triangular block (809). The protrusion (810) is attached to one side of the rubber strip (808).

5. The molding and cooling mechanism for producing plastic corrugated pipes according to claim 1, characterized in that: The protective device (9) includes an asbestos board (901), which is disposed on one side of the cooling mechanism body (1). A rectangular strip (902) is fixedly connected to the top of the asbestos board (901), and a limiting frame (903) is slidably fitted on the surface of the rectangular strip (902). The limiting frame (903) is fixedly connected to the top of the cooling mechanism body (1).

6. The molding and cooling mechanism for producing plastic corrugated pipes according to claim 5, characterized in that: An L-shaped plate (904) is fixedly connected to one end of the rectangular strip (902) away from the asbestos board (901), and the L-shaped plate (904) is located on one side of the cooling mechanism body (1).

7. The molding and cooling mechanism for producing plastic corrugated pipes according to claim 1, characterized in that: A connecting frame (905) is fixedly connected to one side of the main body (1) of the cooling mechanism. The inner wall of the connecting frame (905) is slidably connected to one end of the L-shaped plate (904). A fourth damping rod (906) is fixedly connected to one side of the inner wall of the connecting frame (905). The end of the fourth damping rod (906) near the inside of the connecting frame (905) is fixedly connected to one side of the L-shaped plate (904). A fourth spring (907) is sleeved on the surface of the fourth damping rod (906). One end of the fourth spring (907) is fixedly connected to one side of the inner wall of the connecting frame (905). The end of the fourth spring (907) near the fourth damping rod (906) is fixedly connected to one side of the L-shaped plate (904). A fixing plate (908) is fixedly connected to one side of the L-shaped plate (904). The fixing plate (908) is slidably inserted through one side of the inner wall of the connecting frame (905).

8. The molding and cooling mechanism for producing plastic corrugated pipes according to claim 7, characterized in that: A bolt (909) is threaded through one side of the connecting frame (905). One end of the bolt (909) is located on one side of the fixing plate (908). A fifth damping rod (910) is fixedly connected to one end of the bolt (909). The end of the fifth damping rod (910) near the bolt (909) is located on one side of the connecting frame (905). A fifth spring (911) is sleeved on the surface of the fifth damping rod (910). One end of the fifth spring (911) is fixedly connected to one end of the bolt (909). The end of the fifth spring (911) near the fifth damping rod (910) is fixedly connected to the end of the fifth damping rod (910) near the bolt (909).

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