Automatic coil pipe laying device for ground source heat energy buried pipe construction

Abstract

The invention relates to the technical field of ground source heat energy construction, in particular to an automatic coil pipe laying device for ground source heat energy pipe burying construction, which comprises two winding sets, each winding set comprises a winding sleeve, an adjusting shaft is rotatably arranged in each winding sleeve, and a variable-diameter adjusting rod is radially and slidably arranged on the peripheral wall of each winding sleeve; the variable-diameter adjusting rod is meshed with the tooth groove of the adjusting shaft; the reverse winding group comprises a rotating roller, and a first heating assembly is arranged in the rotating roller; the pipeline lowering frame comprises a lowering channel, and a butt clamping roller set is arranged in the lowering channel and used for driving a pipeline to be lowered. By arranging the winding group and the reverse winding group, the two rolls of PE pipes can be combined together and then synchronously put down to the ground, so that the convenience of the pipeline laying process is greatly improved; besides, in order to ensure the smoothness of the pipeline in the descending process, the pipeline is extended and straightened through the reverse winding group, so that the pipeline is prevented from being scraped and collided with the hole wall in the descending process, and smooth pipe burying is ensured.

Description

Technical Field

[0001] This application relates to the field of geothermal energy technology, and in particular to an automatic coil laying device for the construction of geothermal energy buried pipes. Background Technology

[0002] With the increasing global demand for resources, the supply and demand relationship of traditional energy sources such as oil and coal is becoming increasingly strained, and the environmental pollution caused by traditional energy sources is becoming increasingly serious. Therefore, energy conservation and emission reduction have become the main direction of energy development at this stage. Geothermal energy, as a renewable energy source, has advantages over other new energy sources such as solar, wind, and bioenergy, including wide distribution, abundant reserves, less susceptibility to external factors, low carbon emissions, cleanliness, and reusability, making it extremely promising for development. Geothermal energy refers to a renewable energy source that utilizes soil or groundwater at a certain depth below the Earth's surface as a heat source or heat sink. Its working principle is based on a ground source heat pump system, which uses the constant temperature of underground soil or groundwater to provide stable heating and cooling energy. In winter, the ground source heat pump absorbs heat from the ground and transfers it to buildings for heating; in summer, it transfers heat from within buildings to the ground for cooling. This system achieves efficient and environmentally friendly energy utilization through heat exchangers with underground soil or groundwater.

[0003] For example, patent document CN116659105A discloses a geothermal energy cascade utilization heat exchange system and a geothermal energy cascade utilization method, in which geothermal energy is utilized by burying pipes in well holes for heat exchange. Another example is patent document CN212645014U, which discloses a geothermal energy extraction device, in which an improvement is made to the winding method of the geothermal pipes buried underground, thereby reducing heat energy consumption and improving efficiency.

[0004] In the entire geothermal energy utilization construction process, geothermal pipe laying is a very important step. First, holes need to be drilled in the ground, and then the geothermal pipes are lowered into the holes until they reach the ground. At present, PE pipes are usually used as geothermal pipes for construction, and drilling equipment is used to assist in the gradual lowering of PE pipes. Normally, PE pipes are usually rolled up in single strands, but in the process of laying geothermal pipes, two pipes need to be lowered into the ground simultaneously, that is, the inlet pipe and the return pipe are lowered at the same time. Traditional pipe laying equipment often only has the function of winding and rewinding, and cannot achieve the simultaneous lowering of the inlet and return pipes. Moreover, due to the deep lowering depth, the lower end of the pipe often bends and abuts against the hole wall due to the original winding during the lowering process, which affects the lowering. Summary of the Invention

[0005] The purpose of this application is to provide an automatic coil laying device for the construction of geothermal energy buried pipes in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, the technical solution of this application is as follows: An automatic coil laying device for geothermal energy buried pipe construction includes: two winding groups, each winding group including a winding sleeve, an adjusting shaft rotatably disposed inside the winding sleeve, and a diameter adjusting rod radially slidingly disposed on the outer peripheral wall of the winding sleeve, the diameter adjusting rod engaging with the toothed groove of the adjusting shaft; a reverse winding group including a rotating roller, the rotating roller having a first heating component disposed inside; and a pipe lowering frame including a lowering channel, the lowering channel having a pair of clamping rollers for driving the pipe lowering.

[0007] Preferably, the outer peripheral wall of the adjusting shaft is provided with an annular rack, and the variable diameter adjusting rod is provided with a corresponding straight rack, the straight rack and the annular rack meshing with each other.

[0008] Preferably, the end of the variable diameter adjusting rod located outside the winding sleeve is provided with an arc-shaped support plate; there are three sets of variable diameter adjusting rods, two of which in each set are axially symmetrical, and the three variable diameter adjusting rods are spaced apart along the adjusting shaft.

[0009] Preferably, the inside of the winding sleeve is provided with a support ring frame, and the end of the adjusting shaft away from the other winding group is rotatably disposed with the support ring frame; the end of the adjusting shaft is provided with a limiting member that slides elastically along the axial direction, and the support ring frame is provided with a limiting hole, so that when the limiting member is pulled against the elastic force, the limiting member disengages from the limiting hole.

[0010] Preferably, the end of the adjusting shaft is provided with a cavity, the limiting member is disposed in the cavity, the periphery of the cavity is provided with a plurality of circumferentially arranged slots, the limiting member includes a plurality of circumferentially spaced limiting rods, the ends of the limiting rods corresponding to the slots and located outside the cavity; a cover is screwed onto the cavity, the cover is provided with a through hole, the limiting member includes a pull rod, the pull rod is located outside the adjusting shaft through the through hole; a first spring is provided between the cover and the limiting rod.

[0011] Preferably, it also includes a base, on which a second support is provided, a rotating shaft is provided inside the rotating roller, the end of the rotating shaft is rotatably mounted on the second support, a connecting arm is provided on the rotating shaft, and the connecting arm is connected to the inner wall of the rotating roller; the first heating component is provided on the second support; and a first support is also provided on the base.

[0012] Preferably, there are two sets of clamping rollers, which are spaced apart along the length of the lowering channel. Each clamping roller set includes two clamping assemblies located on both sides of the pipe. Each clamping assembly includes a first drive roller, a first pulley, a second drive roller, and a second pulley. The first drive roller and the first pulley are coaxially rotatable, and the second drive roller and the second pulley are coaxially rotatable. The first pulley and the second pulley are driven by a belt, and the two clamping assemblies are driven by gear meshing. The lowering channel has an opening through which part of the first drive roller and part of the second drive roller abut against the pipe.

[0013] Preferably, a hinge arm is provided on the second rotating shaft where the second drive roller and the second pulley are located, and the other end of the hinge arm is hinged to the first rotating shaft where the first drive roller and the first pulley are located; the two hinge arms opposite each other in the two clamping assemblies are elastically connected.

[0014] Preferably, a baffle is provided on one side of the two wound sleeves facing each other; an abutment ring is provided on the first support; an air outlet is provided on the side of the abutment ring facing the baffle; a venting ring is provided on the baffle; an annular cavity is provided in the venting ring; a plurality of circumferentially spaced air inlets are provided on the side of the baffle facing the first support; the air inlets communicate with the annular cavity; an air outlet pipe is provided on the side of the baffle facing away from the first support; the abutment ring and the baffle rotate and abut against each other. Preferably, an elastic arc-shaped plate is elastically provided in the lowering channel; a through hole is provided on the elastic arc-shaped plate; a cold water pipe is provided above the elastic arc-shaped plate. And / or, The lowering channel is provided with a semi-circular clamp, and two sets of the semi-circular clamps are symmetrically arranged. The side wall of the lowering channel is provided with an inclined groove corresponding to the semi-circular clamp, and the two inclined grooves are brought closer to each other from top to bottom.

[0015] The automatic coiling and laying device for geothermal energy buried pipe construction disclosed in this application, by setting up a winding group and a reverse winding group, allows two rolls of PE pipe (single pipe) to be combined together and simultaneously lowered into the ground, thereby greatly improving the convenience of the pipeline laying process; in addition, in order to ensure the smoothness of the pipeline during the lowering process, the reverse winding group is also used to extend and straighten the pipeline to ensure that the pipeline does not scrape against the borehole wall during the descent, thus ensuring the smooth laying of the pipe. Attached Figure Description

[0016] Figure 1 This is the main view of the overall structure of this application; Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle; Figure 3 for Figure 1 Sectional view of section BB; Figure 4 This is a left view of the overall structure of this application; Figure 5 for Figure 4 Enlarged view of a portion of point B in the middle; Figure 6 This is a three-dimensional view of the overall structure of this application; Figure 7 for Figure 6 Enlarged view of a portion of point C in the middle; Figure 8 This is a partially enlarged schematic diagram of the adjusting shaft in this application; Figure 9 This is a schematic diagram showing the assembly relationship between the limiting component, the cover, the first spring, and the pull rod in this application; Figure 10 This is a partially enlarged schematic diagram of the abutment ring in this application; Figure 11 This is a cross-sectional view of the abutment ring in this application; Figure 12 This is a partially enlarged schematic diagram of the side of the baffle facing away from the abutment ring in this application; Figure 13 This is a schematic diagram of the cross-sectional structure of the lowering channel; Figure 14 for Figure 13 Sectional view of the middle DD section (stereoscopic view); Figure 15 for Figure 13 Sectional view of the EE section (stereoscopic view).

[0017] In the picture: 1. Base; 10. First support; 11. Second support; 12. Vertical frame; 13. Inclined frame; 20. Arc-shaped support plate; 21. Baffle; 22. Variable diameter adjusting rod; 220. Straight rack; 23. Adjusting shaft; 230. Ring rack; 24. First transmission pulley; 25. Second transmission pulley; 26. Belt; 30. Rotating roller; 31. Rotating shaft; 32. Connecting arm; 33. First heating assembly; 40. Interlaced roller group; 41. Lowering channel; 42. Vibration motor; 44. Gear; 45. Hinge arm; 46. Second pulley; 47. Second spring; 48. First pulley; 50. Rotating roller; 52. First drive roller; 53. Second drive roller; 54. Support ring frame; 55. Slot; 60. Limiting rod; 61. First spring; 62. Cover; 63. Pull rod; 410. Relief groove; 100. Air inlet pipe; 101. Abutment ring; 102. Vent ring; 103. Annular cavity; 104. Air inlet; 105. Air outlet pipe; 7. Elastic arc plate; 70. Compression spring; 700. Connecting hole; 8. Semi-annular clamp; 80. Sliding rod; 81. Telescopic rod; 83. Sliding sleeve; 84. Guide rail; 85. Inclined slide groove; 86. Drive screw. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present application, and therefore only show the components relevant to the present application.

[0019] like Figure 1-15 As shown, an automatic coil laying device for geothermal energy buried pipe construction includes: two winding groups, each winding group including a winding sleeve, an adjusting shaft 23 rotatably provided inside the winding sleeve, and a diameter adjusting rod 22 radially sliding on the outer peripheral wall of the winding sleeve, the diameter adjusting rod 22 engaging with the toothed groove of the adjusting shaft 23; a reverse winding group including a rotating roller 30, the rotating roller 30 having a first heating component 33 inside; and a pipe lowering frame including a lowering channel 41, the lowering channel 41 having a pair of clamping rollers for driving the pipe lowering.

[0020] There are two winding groups, one for winding the inlet pipe and the other for winding the return pipe. The two winding groups are not specifically designed for the inlet pipe and the return pipe, and can be matched randomly in actual situations.

[0021] The inside of the winding sleeve is hollow, and the adjusting shaft 23 inside can rotate independently relative to the winding sleeve, and the rotation of the two does not affect each other.

[0022] A variable diameter adjusting rod 22 is radially slidably provided on the outer peripheral wall of the winding sleeve. The variable diameter adjusting rod 22 can slide radially relative to the winding sleeve. When it slides away from the center of the winding sleeve, the radial dimension of the support part of the entire winding assembly used to support the PE roll will increase. When it slides closer to the center of the winding sleeve, the radial dimension of the support part of the entire winding assembly used to support the PE roll will be adjusted, thereby meeting the fitting requirements of different rolls.

[0023] In addition, the size of the support section can be increased after the roll material is placed on the winding assembly, which can effectively fix the roll material and prevent it from slipping and scattering.

[0024] The change of the support in the winding assembly is achieved by adjusting the shaft 23. The adjusting shaft 23 and the variable diameter adjusting rod 22 are connected by a toothed transmission. That is, rotating the adjusting shaft 23 can achieve radial adjustment of the variable diameter adjusting rod 22 relative to the winding sleeve.

[0025] The two winding groups are set back from each other, but the two corresponding winding sleeves are located on the same axis. When installing PE pipes, they can be sleeved from the opposite ends of the two winding sleeves.

[0026] To prevent the PE pipe from bending after being unwound from the winding assembly, a reverse winding assembly is specially provided in this embodiment. The straight line of the rotation center of the reverse winding assembly is parallel to the straight line of the rotation center of the winding assembly.

[0027] When the PE pipe gradually winds down from the top edge of the coiled sleeve, it is then passed around from below the reverse winding group, bending the PE pipe in the opposite direction to ensure straightness. Similarly, when the PE pipe gradually winds down from the bottom edge of the coiled sleeve, it is then passed around from above the reverse winding group, bending the PE pipe in the opposite direction to ensure straightness.

[0028] Two winding sleeves are provided with baffles 21 on one side facing each other. The outer edge of the baffles 21 gradually moves away from their respective winding sleeves so that the baffles 21 are flared, thereby satisfying the smooth transition from the winding sleeve to the reverse winding group.

[0029] Since the PE pipe passes through the roller 30, in order to further ensure the effect of stretching and straightening the PE pipe, a first heating component 33 is specially set inside the roller 30. Under the action of temperature, the pipe will be straightened more easily after being reverse-bent.

[0030] In practice, a return water pipe is installed on one winding group and an inlet water pipe is installed on the other winding group. Before the start, the ends of the return water pipe and the inlet water pipe are flush, and a connecting joint can be installed at this time to connect the two pipes. After the entire pipeline is laid, the connecting joint is located at the bottom of the drilled hole.

[0031] The lowering channel 41 is set on the pipe lowering frame. The lowering channel 41 is set vertically. After the return water pipe and the inlet water pipe are connected and pass through the reverse winding pipe, they will enter the lowering channel 41. Under the driving action of the clamping roller group in the lowering channel 41, they will continue to go deeper into the ground to realize the pipe laying process.

[0032] By setting up winding and anti-winding groups, two rolls of PE pipe (single pipes) can be combined together and lowered into the ground simultaneously, which greatly improves the convenience of the pipeline laying process. In addition, in order to ensure the smoothness of the pipeline during the lowering process, the anti-winding group is used to extend and straighten the pipeline to prevent it from scraping against the borehole wall during the descent, thus ensuring the smooth burial of the pipe.

[0033] In some further embodiments, an annular rack 230 is provided on the outer peripheral wall of the adjusting shaft 23, and a straight rack 220 is provided on the variable diameter adjusting rod 22, with the straight rack 220 meshing with the annular rack 230.

[0034] Specifically, the outer peripheral wall of the adjusting shaft 23 is provided with a ring rack 230, and correspondingly, the variable diameter adjusting rod 22 is provided with a straight rack 220. The straight rack 220 and the ring rack 230 mesh with each other, thereby realizing the radial movement of the variable diameter adjusting rod 22 relative to the winding sleeve when the adjusting shaft 23 rotates.

[0035] In some further embodiments, an arc-shaped support plate 20 is provided at one end of the variable diameter adjusting rod 22 located outside the winding sleeve; there are three sets of variable diameter adjusting rods 22, two of which in each set are axially symmetrical, and the three variable diameter adjusting rods 22 are spaced apart along the adjusting shaft 23.

[0036] The arc-shaped support plate 20 is located on the end of the variable diameter adjusting rod 22 outside the winding sleeve. When the adjusting shaft 23 is rotated, the six sets of arc-shaped support plates 20 will move closer to each other and further away from each other. When the six sets of arc-shaped support plates 20 move closer to each other, they form a part that supports the PE roll material.

[0037] In some further embodiments, the inside of the winding sleeve is provided with a support ring frame 54, and the end of the adjusting shaft 23 away from another winding group is rotatably set with the support ring frame 54; the end of the adjusting shaft 23 is provided with a limiting member that slides elastically along the axial direction, and the support ring frame 54 is provided with a limiting hole, so that when the limiting member is pulled against the elastic force, the limiting member disengages from the limiting hole.

[0038] The adjusting shaft 23 is rotatably mounted inside the winding sleeve via the support ring frame 54. The center of the support ring frame 54 and the adjusting shaft 23 can be connected by a bearing, and the outer edge is connected to the inner circumferential wall of the winding sleeve.

[0039] The limiting member can slide along the axial direction of the adjusting shaft 23. When the limiting member is pulled away from the adjusting shaft 23, the limiting member separates from the limiting hole on the support ring frame 54. At this time, the adjusting shaft 23 rotates relative to the winding sleeve. In its natural state, due to the elastic effect, the limiting member always cooperates with the limiting hole, thereby stopping the adjustment shaft 23 from rotating relative to the support ring frame 54.

[0040] In some further embodiments, the end of the adjusting shaft 23 is provided with a cavity, and a limiting member is disposed in the cavity. The periphery of the cavity is provided with a plurality of circumferentially arranged slots 55. The limiting member includes a plurality of circumferentially spaced limiting rods 60, the ends of which pass through the slots 55 and are located outside the cavity. A cover 62 is screwed onto the cavity, and the cover 62 is provided with a through hole. The limiting member includes a pull rod 63, which is located outside the adjusting shaft 23 through the through hole. A first spring 61 is provided between the cover 62 and the limiting rods 60.

[0041] The limiting component is specifically set in the cavity at the end of the adjusting shaft 23. The cavity has a cylindrical structure, and multiple slots 55 are arranged circumferentially on its side wall. All slots 55 penetrate the side wall of the cavity.

[0042] The limiting component includes several limiting rods 60. One end of each limiting rod 60 passes through the slot 55 and is located outside the cavity. The number of limiting holes corresponds to the number of limiting rods 60. The end of the limiting rod 60 located outside the cavity is used to cooperate with the limiting hole.

[0043] The limiting component also includes a pull rod 63. One end of the pull rod 63 is located inside the cavity and is connected to multiple limiting rods 60. The other end passes through a through hole on the cover 62 and is located outside the cavity for the operator to pull. A first spring 61 is sleeved on the pull rod 63. One end of the first spring 61 abuts against the limiting rod 60, and the other end abuts against the inner wall of the cover 62. The first spring 61 is in a compressed state.

[0044] In some further embodiments, a base 1 is also included, on which a second support 11 is provided. A rotating shaft 31 is provided inside the rotating roller 30. The end of the rotating shaft 31 is rotatably mounted on the second support 11. A connecting arm 32 is provided on the rotating shaft 31 and is connected to the inner wall of the rotating roller 30. A first heating component 33 is provided on the second support 11. A first support 10 is also provided on the base 1.

[0045] The base 1 serves as the support for the entire device, and rollers are also installed on the base 1 to facilitate the movement of the entire device.

[0046] The base 1 is provided with a first bracket 10, and the winding group is located on the top of the first bracket 10. Specifically, there are two first brackets 10, each corresponding to two winding groups.

[0047] The winding sleeve is rotatably mounted on the first support 10, which can be achieved through bearings. A first transmission pulley 24 is provided on the side opposite to the winding sleeve across the first support 10. The first transmission pulley 24 rotates coaxially with the winding sleeve. A first motor is provided at the bottom of the first support 10. A second transmission pulley 25 is provided at the transmission end of the first motor. The first transmission pulley 24 and the second transmission pulley 25 are connected by a belt 26.

[0048] A second bracket 11 is also provided on the base 1 corresponding to the reverse winding group. The inside of the rotating roller 30 is hollow. The inside of the rotating roller 30 is connected to the rotating shaft 31 through the connecting arm 32. The rotating shaft 31 rotates synchronously with the rotating roller 30 under the action of the connecting arm 32. The end of the rotating shaft 31 is rotatably mounted on the second bracket 11.

[0049] The first heating component 33 is located inside the rotating roller 30, but is ultimately fixed on the second bracket 11. The first heating component 33 is not connected to the rotating roller 30 and the rotating shaft 31, so as to avoid interference with the first heating component 33 during the rotation process.

[0050] The first heating component 33 can be an electric heating tube. The first heating component 33 mainly heats the rotating roller 30, thereby making it easier for the reverse winding group to reverse bend the PE pipe.

[0051] In some further embodiments, there are two sets of clamping rollers, which are spaced apart along the length of the lowering channel 41. Each clamping roller set includes two clamping assemblies located on both sides of the pipe. Each clamping assembly includes a first drive roller 52, a first pulley 48, a second drive roller 53, and a second pulley 46. The first drive roller 52 and the first pulley 48 are coaxially rotatable, and the second drive roller 53 and the second pulley 46 are coaxially rotatable. The first pulley 48 and the second pulley 46 are driven by a belt 26, and the two clamping assemblies are driven by a gear 44. The lowering channel 41 has an opening through which part of the first drive roller 52 and part of the second drive roller 53 abut against the pipe.

[0052] The clamping components are located on both sides of the pipe to clamp the pipe and thus drive the pipe to move downward along the lowering channel 41.

[0053] The first drive roller 52 is coaxially arranged with the first pulley 48 and is located above it. The second drive roller 53 is coaxially arranged with the second pulley 46 and is located below it. The first pulley 48 and the second pulley 46 are connected by a belt 26.

[0054] The shaft containing the first drive roller 52 and the first pulley 48 is driven to rotate by a motor.

[0055] The shaft where the first drive roller 52 and the pulley are located is also equipped with a gear 44. The gears 44 in the two opposing clamping assemblies mesh with each other, thereby realizing the synchronous rotation of the two sets of clamping assemblies.

[0056] Since it includes an inlet pipe and a return pipe, the clamping assembly is provided in two sets corresponding to the direction of the arrangement of the inlet pipe and the return pipe.

[0057] The lowering channel 41 has openings corresponding to the first drive roller 52 and the second drive roller 53. Part of the first drive roller 52 and part of the second drive roller 53 are located in the lowering channel 41 through the openings for abutting drive of the pipe.

[0058] In some further embodiments, a hinge arm 45 is provided on the second rotating shaft where the second drive roller 53 and the second pulley 46 are located, and the other end of the hinge arm 45 is hinged to the first rotating shaft where the first drive roller 52 and the first pulley 48 are located; the two opposing hinge arms 45 in the two clamping assemblies are elastically connected.

[0059] One end of the hinge arm 45 is connected to the shaft where the second drive roller 53 and the second pulley 46 are located, and the other end is hinged to the shaft where the first drive roller 52 and the first pulley 48 are located. The two opposing hinge walls in the two clamping assemblies are elastically connected, so that the two opposing second drive rollers 53 press more tightly against the PE pipe, thereby ensuring the driving effect on the PE pipe during the lowering process.

[0060] It should be noted that the two second drive rollers 53 in the two clamping assemblies, which are gradually approaching each other, will not get too close and interfere with the opening edge in the lowering channel 41, because they will come into contact with the PE pipe during the process of approaching each other.

[0061] A second spring 47 is provided between the two hinged arms 45.

[0062] In some further embodiments, the pipe lowering frame is provided with an interlaced roller group 40 on the frame between the anti-winding group and the lowering channel 41, and the interlaced roller group 40 is provided with a rolling channel for straightening the pipe.

[0063] The pipes passing through the reverse winding group enter the lowering channel 41 through the rolling channel in the staggered roller group 40. There are three sets of staggered roller groups 40.

[0064] The pipe lowering frame includes a vertical frame 12 and an inclined frame 13. The inclined frame 13 is located on top of the vertical frame 12, and the staggered roller group 40 is located on the inclined frame 13. The three staggered roller groups 40 are arranged at intervals along the extension direction of the inclined frame 13.

[0065] The staggered roller group 40 includes two rotatably mounted rotating rollers 50. The two rotating rollers 50 are spaced apart along the extension direction of the inclined frame 13 and in the direction perpendicular to the height of the inclined frame 13, so that the entire rolling channel presents an S-shaped structure to avoid excessive reverse bending of the pipe after passing through the reverse winding group.

[0066] In some further embodiments, the first support 10 is provided with an abutment ring 101, the abutment ring 101 is provided with an air outlet on the side facing the corresponding baffle 21, the baffle 21 is provided with a ventilation ring 102, the ventilation ring 102 is provided with an annular cavity 103, the baffle 21 is provided with a plurality of circumferentially spaced air inlets 104 on the side facing the first support 10, the air inlets 104 are connected to the annular cavity 103, and the baffle 21 is provided with an air outlet pipe 105 on the side facing away from the first support 10; the abutment ring 101 and the baffle 21 are rotatably abutted together.

[0067] An abutment ring 101 is disposed on the first bracket 10, and an air outlet is provided in the abutment ring 101. An annular cavity 103 is provided in the ventilation ring 102.

[0068] When the winding assembly rotates, the vent ring 102 on the baffle 21 rotates and abuts against the contact ring 101. The vent is always in the venting state. The gas flowing out of the vent continuously enters the annular cavity 103 through the air inlet 104 provided on the vent ring 102. Then, the gas in the annular cavity 103 enters the PE pipe through the vent pipe 105, so that there is a certain air pressure inside the PE pipe during the lowering process, thereby increasing the toughness and hardness of the PE pipe and further reducing the risk of bending.

[0069] The first support 10 is provided with an air inlet pipe 100, which passes through the abutment ring 101 and is connected to the air outlet for supplying airflow to the air outlet.

[0070] The abutment ring 101 is protruding on the side facing the vent ring 102, and the vent ring 102 is recessed on the side facing the abutment ring 101. The two fit together to minimize gas loss between them.

[0071] In some further embodiments, a vibration motor 42 is provided on the outer peripheral wall of the lowering channel 41.

[0072] To ensure the smooth descent of the lowering channel 41, a vibration motor 42 is installed on the outer wall of the lowering channel 41. When the PE pipe is lowered, the vibration effect brought by the vibration motor 42 is transmitted to the PE pipe, so that the lowered PE pipe has a certain degree of vibration. This prevents it from being stuck by the uneven parts of the hole wall when it touches the hole wall, and further ensures the smooth descent of the PE pipe.

[0073] In some further embodiments, a second heating component is provided on the outer peripheral wall of the lowering channel 41.

[0074] A second heating component is also provided on the outer peripheral wall of the lowering channel 41. Since two sets of clamping rollers are set at intervals above and below, they will exert a stretching effect on the PE pipe. The second heating component on the lowering channel 41 can effectively heat the PE pipe in the straightened state, thereby ensuring its straightness.

[0075] In some further embodiments, an elastic arc plate 7 is elastically provided in the lowering channel 41, a through hole 700 is provided on the elastic arc plate 7, and a cold water pipe is provided above the elastic arc plate.

[0076] Two sets of elastic arc plates 7 are provided, with multiple plates in each set. The multiple elastic arc plates 7 are arranged to form the shape of the outer contour of the PE pipe, so as to fit the PE pipe as closely as possible without locking it.

[0077] The cold water pipe installed above the elastic arc plate 7 can spray cold water toward the elastic arc plate 7, so that the PE pipe, after being bent and heated as described above, cools down and hardens to maintain a straight state, thereby ensuring smooth entry into the ground.

[0078] Each elastic arc plate 7 is connected to the inner wall of the lower channel by a compression spring 70.

[0079] In some further embodiments, a semi-circular clamp 8 is slidably provided in the lowering channel 41, and two sets of semi-circular clamps 8 are symmetrically provided. An inclined groove 85 is provided on the side wall of the lowering channel 41 corresponding to the semi-circular clamp 8, and the two inclined grooves 85 approach each other from top to bottom.

[0080] The semi-circular clamp 8 is provided with a sliding rod 80, one end of which is connected to the semi-circular clamp 8, and the other end is connected to the inclined slide groove 85.

[0081] The side wall of the lowering channel 41, which is correspondingly provided with the inclined slide 85, is provided with a clearance groove 410. A telescopic rod 81 is provided through the clearance groove 410. One end of the telescopic rod 81 is connected to a semi-circular clamp 8, and the other end is screwed to a drive screw 86 that is rotatably provided on the outer wall of the lowering channel 41. A sliding sleeve 83 is also provided on this end. The sliding sleeve 83 is sleeved on the guide rail 84 provided on the outer wall of the lowering channel 41. The drive screw 86 rotates to drive the semi-circular clamp 8 to rise and fall.

[0082] The telescopic rod 81 can be a structure with a sleeve and a rod nested and slidingly fitted, or a return spring can be set inside the sleeve. The return spring can keep the sleeve and rod in a "tight" state to prevent them from shaking and loosening.

[0083] When the drive screw 86 rotates and drives the two semi-annular clamps 8 to descend, due to the action of the inclined slide 85, the two semi-annular clamps 8 gradually approach and clamp the PE pipe, thereby pulling the PE pipe downward. This can straighten the cooled PE pipe and transport the PE pipe underground. As the drive screw 86 rotates alternately in both directions, the two semi-annular clamps 8 can reciprocate to transport the PE pipe underground.

[0084] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. An automatic coil laying device for the construction of geothermal energy buried pipes, characterized in that, include: Two winding groups, each winding group includes a winding sleeve, an adjusting shaft (23) is rotatably provided inside the winding sleeve, and a variable diameter adjusting rod (22) is radially slidably provided on the outer peripheral wall of the winding sleeve, the variable diameter adjusting rod (22) meshing with the tooth groove of the adjusting shaft (23); The reverse winding assembly includes a rotating roller (30), the interior of which is provided with a first heating component (33). The pipe lowering frame includes a lowering channel (41), in which a pair of clamping rollers are provided, which are used to drive the pipe lowering.

2. The automatic coil laying device for geothermal energy buried pipe construction according to claim 1, characterized in that, The outer peripheral wall of the adjusting shaft (23) is provided with an annular rack (230), and the variable diameter adjusting rod (22) is provided with a straight rack (220) corresponding to it. The straight rack (220) and the annular rack (230) mesh with each other.

3. The automatic coil laying device for geothermal energy buried pipe construction according to claim 1 or 2, characterized in that, The variable diameter adjusting rod (22) is provided with an arc-shaped support plate (20) at one end outside the winding sleeve; the variable diameter adjusting rod (22) is provided in three groups, and the two variable diameter adjusting rods (22) in each group are axially symmetrical, and the three variable diameter adjusting rods (22) are spaced apart along the adjusting shaft (23).

4. The automatic coil laying device for geothermal energy buried pipe construction according to claim 1, characterized in that, The inside of the winding sleeve is provided with a support ring frame (54), and the end of the adjusting shaft (23) away from the other winding group is rotatably set with the support ring frame (54); the end of the adjusting shaft (23) is provided with a limiting member that slides elastically along the axial direction, and the support ring frame (54) is provided with a limiting hole. When the limiting member is pulled against the elastic force, the limiting member disengages from the limiting hole.

5. The automatic coil laying device for geothermal energy buried pipe construction according to claim 4, characterized in that, The end of the adjusting shaft (23) is provided with a cavity, and the limiting member is disposed in the cavity. The periphery of the cavity is provided with a plurality of circumferentially arranged slots (55). The limiting member includes a plurality of circumferentially spaced limiting rods (60). The ends of the limiting rods (60) pass through the slots (55) and are located outside the cavity. A cover (62) is screwed onto the cavity. The cover (62) is provided with a through hole. The limiting member includes a pull rod (63). The pull rod (63) is located outside the adjusting shaft (23) through the through hole. A first spring (61) is provided between the cover (62) and the limiting rods (60).

6. The automatic coil laying device for geothermal energy buried pipe construction according to claim 1, characterized in that, It also includes a base (1), on which a second bracket (11) is provided, and inside the rotating roller (30) is a rotating shaft (31). The end of the rotating shaft (31) is rotatably mounted on the second bracket (11). A connecting arm (32) is provided on the rotating shaft (31), and the connecting arm (32) is connected to the inner wall of the rotating roller (30). The first heating component (33) is mounted on the second bracket (11). The base (1) is also provided with a first bracket (10).

7. The automatic coil laying device for geothermal energy buried pipe construction according to claim 1, characterized in that, The number of clamping roller groups is two, and the two clamping roller groups are spaced apart along the length direction of the lowering channel (41). Each clamping roller group includes two clamping components located on both sides of the pipe. Each clamping component includes a first drive roller (52), a first pulley (48), a second drive roller (53), and a second pulley (46). The first drive roller (52) and the first pulley (48) are coaxially rotatable, and the second drive roller (53) and the second pulley (46) are coaxially rotatable. The first pulley (48) and the second pulley (46) are driven by a belt (26), and the two clamping components are driven by a gear (44). The lowering channel (41) is provided with an opening, and part of the first drive roller (52) and part of the second drive roller (53) abut against the pipe through the opening.

8. The automatic coil laying device for geothermal energy buried pipe construction according to claim 7, characterized in that, A hinge arm (45) is provided on the second rotating shaft where the second drive roller (53) and the second pulley (46) are located. The other end of the hinge arm (45) is hinged to the first rotating shaft where the first drive roller (52) and the first pulley (48) are located. The two hinge arms (45) of the two clamping assemblies are elastically connected to each other.

9. The automatic coil laying device for geothermal energy buried pipe construction according to claim 6, characterized in that, A baffle (21) is provided on one side of the two wound sleeves facing each other; an abutment ring (101) is provided on the first support (10), and an air outlet is provided on the side of the abutment ring (101) facing the baffle (21). A ventilation ring (102) is provided on the baffle (21), and an annular cavity (103) is provided in the ventilation ring (102). A plurality of air inlets (104) are provided circumferentially spaced on the side of the baffle (21) facing the first support (10), and the air inlets (104) are connected to the annular cavity (103). An air outlet pipe (105) is provided on the side of the baffle (21) facing away from the first support (10); the abutment ring (101) and the baffle (21) rotate and abut against each other.

10. The automatic coil laying device for geothermal energy buried pipe construction according to claim 1, characterized in that, The lowering channel (41) is elastically provided with an elastic arc plate (7), and a through hole (700) is provided on the elastic arc plate (7). A cold water pipe is provided above the elastic arc plate (7). And / or, The lowering channel (41) is provided with a semi-circular clamp (8), and two sets of the semi-circular clamp (8) are symmetrically arranged. The side wall of the lowering channel (41) is provided with an inclined groove (85) corresponding to the semi-circular clamp (8), and the two inclined grooves (85) are close to each other from top to bottom.

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