Automatic winding, coating and sleeving equipment for heat insulation pipe

By designing an automated winding, wrapping, and fitting equipment, and employing rack and pinion drive and distance sensors, the automated winding and fitting of insulation pipes is achieved, solving the problems of high labor intensity and equipment wear caused by manual winding, and improving work efficiency and safety.

CN121553465APending Publication Date: 2026-02-24SHENGLI OILFIELD SHENGJI PETROLEUM EQUIP
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Patent Information

Application Number
CN202511740867.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

The current process of winding and fitting insulation pipes involves high manual labor intensity, severe wear of the pullers, safety hazards, and large space occupation.

Method used

Design an automatic winding, wrapping, and fitting device that includes an inner tube conveying mechanism, a winding mechanism, and an outer tube conveying mechanism. Employ rack and pinion drive and a distance sensor to achieve automatic pushing and winding of the inner tube, reducing manual intervention.

Benefits of technology

It reduces the labor intensity of workers, improves work efficiency, reduces the risk of equipment wear and tear, occupies little space, is simple to operate, and is highly safe.

✦ Generated by Eureka AI based on patent content.

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Abstract

The automatic winding, coating and sleeving equipment comprises an inner pipe conveying mechanism, a winding mechanism and an outer pipe conveying mechanism, the winding mechanism is arranged between the inner pipe conveying mechanism and the outer pipe conveying mechanism, and the inner pipe conveying mechanism comprises racks symmetrically installed on a first machine base; the upper end of the rack is connected with gears, a transmission shaft is arranged between the gears, a housing is installed on the outer sides of the gears, a driving motor is installed on one side wall of the housing, and a detachable lengthened push rod is fixed to the side wall, adjacent to the driving motor, of the housing. The automatic pushing type sleeving equipment has the beneficial effects that the automatic pushing type sleeving equipment can be completed only by one person, operation is easy, the labor intensity is low, relatively safety is high, automatic winding is achieved, the labor intensity is greatly reduced, and the working efficiency is improved.
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Description

Technical Field

[0001] This invention relates to the technical field of heat insulation oil casing processing equipment, specifically to an automatic winding, wrapping, and fitting equipment for heat insulation pipes. Background Technology

[0002] Insulated tubing is mainly used in heavy oil extraction. Heavy oil extraction requires viscosity reduction, such as through thermal recovery processes like steam injection or steam drive, where high-temperature steam is injected into the oil layer to heat the crude oil. In this case, insulated tubing is needed to reduce heat loss. The main body of the insulated tubing is a concentric double-layered steel pipe, with the cavity filled with high-performance insulation material. The inner and outer pipes are connected by welded ends.

[0003] The first step in making thermal insulation pipes is winding and fitting. Currently, the winding method is manual, and the fitting method is pull-type. This involves first using a puller to clamp one end of the inner pipe, then passing the winch's wire rope through the outer pipe, connecting the wire rope and the puller, and using the winch to pull the inner pipe to the desired position to complete the fitting. The main disadvantages are the conveying of the puller, the wear of the puller, and the wire rope passing through the outer pipe. This method involves high labor intensity for workers, and the wear of the puller can easily cause certain safety hazards. Therefore, there is an urgent need for an automatic winding, wrapping, and fitting device for thermal insulation pipes to solve the existing problems. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic winding, wrapping, and fitting device for heat insulation pipes in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] An automatic winding, wrapping, and fitting device for heat insulation tubes includes an inner tube conveying mechanism, a winding mechanism, and an outer tube conveying mechanism. The winding mechanism is located between the inner tube conveying mechanism and the outer tube conveying mechanism. The inner tube conveying mechanism includes racks symmetrically mounted on a base, with gears connected to the upper ends of the racks. A drive shaft is provided between the gears, and a cover is mounted on the outside of the gears. A drive motor is mounted on one side wall of the cover, and a detachable extended push rod is fixed on the side wall of the cover adjacent to the drive motor. The winding mechanism includes an inlet cup mounted on the upper end of the machine housing. An aerogel storage box is mounted on one side wall of the machine housing. A servo motor is mounted on one side of the inlet cup, and a drive wheel is mounted on the output shaft of the servo motor. A drive wheel is connected to the drive wheel via a belt, and a turntable is fixed on one side wall of the drive wheel. Two sets of storage bins are symmetrically mounted on the turntable. The outer tube conveying mechanism includes a baffle fixed on one side of the upper end of a base, and a distance measuring sensor is mounted in the middle of the baffle.

[0007] Furthermore, the rack is fixed to both sides of the upper end of the base by screws, the gear meshes with the rack, the drive shaft is fixed between the gears, the drive shaft is connected to the cover by bearings, the drive motor is fixed to one side wall of the cover by bolts, and the output shaft of the drive motor is fixedly connected to one end of the drive shaft.

[0008] By adopting the above technical solution, the inner tube is placed in the middle of the machine base, and the drive motor is controlled to work. The drive motor drives the gear to rotate through the transmission shaft, and then drives the cover to move under the action of the rack. The cover then pushes the inner tube through the extended push rod, so that it enters the winding mechanism.

[0009] Furthermore, the extended push rod is fixed to one side wall of the cover by screws, and a guide rail is also fixed to the middle of the upper end of the base.

[0010] By adopting the above technical solution, the guide rail can be limited and guided during the inner tube pushing process.

[0011] Furthermore, the inlet cup is embedded in the convex plate at the upper end of the chassis. The inlet cup has a hollow structure and the inlet end has a horn-shaped structure. The aerogel storage box is fixed to one side wall of the chassis by a support plate. The top of the aerogel storage box is reserved with guide rollers.

[0012] By adopting the above technical solution, when producing aerogel heat-insulating oil pipes, when the inner tube just reaches the vicinity of the inlet cup, one end of the heat-insulating material is manually fixed to the inner tube. As the inner tube moves forward, the heat-insulating material automatically covers the inner tube. The two guide rollers on the aerogel storage box clamp the aerogel and play a corrective role. The movement direction of the heat-insulating material is restricted by the inlet cup.

[0013] Furthermore, the servo motor is fixed to the upper end of the chassis by bolts, the output shaft of the servo motor is fixedly connected to the drive wheel, and the transmission wheel has a ring structure.

[0014] By adopting the above technical solution, the servo motor drives the drive wheel to rotate, and the drive wheel then drives the transmission wheel to rotate via a belt.

[0015] Furthermore, the turntable is fixed to one side wall of the transmission wheel, and the storage bin is fixed to the turntable by screws.

[0016] By adopting the above technical solution, when producing high vacuum heat-insulating oil pipes, when the inner tube reaches the outlet of the inlet cup, one end of the heat-insulating material is manually fixed to the inner tube. As the inner tube moves forward, the transmission wheel drives the turntable to rotate, so that the heat-insulating material is automatically wound around the inner tube. After the heat-insulating material is used up, the cover is opened to add more heat-insulating material. Two storage buckets are set up to prevent the inconvenience of adding heat-insulating material when the rotation distance is too far.

[0017] Furthermore, the storage hopper has a built-in bearing shaft, and a discharge port is provided on one side wall of the storage hopper, with a guide shaft installed inside the discharge port.

[0018] By adopting the above technical solution, the bearing shaft facilitates the installation of the heat insulation material, and the guide shaft on the discharge port can guide the output of the heat insulation material to ensure its stable output.

[0019] Furthermore, a controller is fixed to the upper part of the chassis, and an operation panel is reserved on the controller.

[0020] By adopting the above technical solution, the controller controls the operation of the entire set of equipment.

[0021] Furthermore, electric push rods are fixed at the four corners of the bottom of the chassis, and a bearing plate is installed at the bottom of the electric push rods.

[0022] By adopting the above technical solution, the electric push rod can adjust the height of the chassis, thereby making the first guide rail, the second guide rail, and the inlet cup coaxial.

[0023] Furthermore, the baffle is installed on one side of the top of the second base with screws, the ranging sensor is fixed in the middle of the baffle with screws, and a guide rail is also installed in the middle of the top of the second base.

[0024] By adopting the above technical solution, when the ranging sensor detects that the inner tube has been pushed to a certain distance, it stops pushing, automatically records the difference between the inner and outer tubes, completes the heat insulation oil pipe assembly, and then replaces the new inner and outer tubes to repeat the operation.

[0025] The specific working principle is as follows: The device is placed in position and connected to an external power source, allowing the electric push rod to adjust the height of the chassis, thereby ensuring that guide rail one, guide rail two, and the inlet cup are coaxial. During use, the inner tube is placed on guide rail one on the base, and the drive motor is activated. The drive motor drives the gear through the transmission shaft, which in turn moves the cover under the action of the rack. The cover then pushes the inner tube through the extended push rod, allowing it to enter the winding mechanism. Since the winding mechanism consists of two parts—a winding device and a coating device—the winding device operates on high-vacuum heat-insulating oil pipes, and the coating device operates on aerogel heat-insulating oil pipes, the specific process is as follows:

[0026] (1) When producing aerogel heat-insulating oil pipe, when the inner tube just reaches the vicinity of the inlet cup, one end of the heat-insulating material is fixed to the inner tube by hand. The inner tube moves forward and drives the heat-insulating material to automatically cover the inner tube. The two guide rollers on the aerogel storage box clamp the aerogel and play a corrective role. The direction of movement of the heat-insulating material is restricted by the inlet cup.

[0027] (2) When producing high vacuum heat insulation oil pipe, when the inner tube reaches the outlet of the inlet cup, one end of the heat insulation material is fixed to the inner tube by hand. Then the servo motor drives the drive wheel to rotate. The drive wheel drives the transmission wheel to rotate through the belt. While the inner tube moves forward, the transmission wheel drives the turntable to rotate, so that the heat insulation material is automatically wrapped around the inner tube. After the heat insulation material is used up, the cover is opened to add heat insulation material. Two storage buckets are set up to prevent the distance of rotation from being too far to add heat insulation material.

[0028] Finally, when the ranging sensor detects that the inner tube has been advanced to a certain distance, it stops advancing, automatically records the difference between the inner and outer tubes, completes the installation of the heat-insulating oil pipe, and then replaces the inner and outer tubes and repeats the operation.

[0029] The beneficial effects of this invention are as follows:

[0030] 1. The inner tube is conveyed by a rack and pinion drive. The drive motor drives the cover to convey the inner tube to one end of the outer tube, realizing automation and reducing the labor intensity of workers. The inner tube pushing device has a guide rail throughout the process. The guide rail can correct the pushing direction and push the heat insulation inner tube into the outer tube, reducing the number of manual interventions.

[0031] 2. The winch-driven winding method requires two workers to work together, including a puller to pull out the wire rope. This is labor-intensive, and the puller is prone to wear and tear, requiring regular maintenance. Worn wire ropes can easily pop out, posing a safety hazard. The newly designed automatic push-type winding equipment only requires one person to operate. It is simple to operate, has low labor intensity, and is much safer. It also achieves automatic winding, greatly reducing labor intensity and improving work efficiency.

[0032] 3. The end is equipped with a distance sensor, which can automatically detect the distance and make it reach the standard. No manual measurement or secondary aiming is required, which is convenient and quick. At the same time, this set of equipment occupies a small area and can save space. Attached Figure Description

[0033] Figure 1 This is a front view of an automatic winding, wrapping, and fitting device for heat insulation pipes as described in this invention;

[0034] Figure 2 This is a schematic diagram of the winding mechanism in the automatic winding, wrapping and fitting equipment for heat insulation pipes described in this invention;

[0035] Figure 3 This is a rear view of the winding mechanism in the automatic winding, wrapping and fitting equipment for heat insulation pipes described in this invention;

[0036] Figure 4 This is an exploded schematic diagram of the gear and rack connection relationship of the controller in the automatic winding, wrapping and assembly equipment for heat insulation pipes described in this invention;

[0037] Figure 5 This invention relates to an automatic winding, wrapping, and fitting device for heat insulation pipes. Figure 1 Enlarged view of point A in the middle;

[0038] Figure 6 This is a schematic diagram of the internal structure of the storage bin in the automatic winding, wrapping and fitting equipment for heat insulation pipes described in this invention.

[0039] The annotations in the attached figures are explained as follows:

[0040] 1. Inner tube conveying mechanism; 101. Rack; 102. Drive motor; 103. Cover; 104. Extended push rod; 105. Guide rail one; 106. Base one; 107. Drive shaft; 108. Gear; 2. Winding mechanism; 201. Chassis; 202. Electric push rod; 203. Bearing plate; 204. Aerogel storage box; 205. Inlet cup; 206. Servo motor; 207. Controller; 208. Drive wheel; 209. Turntable; 210. Storage hopper; 211. Drive wheel; 3. Outer tube conveying mechanism; 301. Base two; 302. Guide rail two; 303. Baffle; 304. Distance sensor. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings:

[0042] like Figures 1-6As shown, an automatic winding, wrapping, and fitting device for heat insulation pipes includes an inner pipe conveying mechanism 1, a winding mechanism 2, and an outer pipe conveying mechanism 3. The winding mechanism 2 is located between the inner pipe conveying mechanism 1 and the outer pipe conveying mechanism 3. The inner pipe conveying mechanism 1 includes racks 101 symmetrically mounted on a base 106. Gears 108 are connected to the upper end of the racks 101. A drive shaft 107 is arranged between the gears 108. A cover 103 is mounted on the outside of the gears 108. A drive motor 102 is mounted on one side wall of the cover 103. A detachable extended push rod 104 is fixed on the side wall of the cover 103 adjacent to the drive motor 102, which can push the inner pipe. The winding mechanism 2 includes a mounting mechanism... An inlet cup 205 is located at the top of the housing 201. An aerogel storage box 204 is installed on one side wall of the housing 201 to cover the inner tube with aerogel. A servo motor 206 is installed on one side of the inlet cup 205. A drive wheel 211 is installed on the output shaft of the servo motor 206. A transmission wheel 208 is connected to the drive wheel 211 by a belt. A turntable 209 is fixed on one side wall of the transmission wheel 208. Two sets of storage bins 210 are symmetrically installed on the turntable 209 to wrap the inner tube with heat insulation material. The outer tube conveying mechanism 3 includes a baffle 303 fixed on one side of the upper end of the base 301. A distance sensor 304 is installed in the middle of the baffle 303 to detect the movement distance of the inner tube.

[0043] In this embodiment, rack 101 is fixed to both sides of the upper end of base 106 by screws, gear 108 meshes with rack 101, drive shaft 107 is fixed between gear 108, drive shaft 107 is connected to cover 103 by bearing, drive motor 102 is fixed to one side wall of cover 103 by bolts, output shaft of drive motor 102 is fixedly connected to one end of drive shaft 107, inner tube is placed in the middle of base 106, drive motor 102 is controlled to work, drive motor 102 drives gear 108 to rotate through drive shaft 107, and then drives cover 103 to move under the action of rack 101, cover 103 then pushes inner tube through extended push rod 104, so that it enters winding mechanism 2.

[0044] In this embodiment, the extended push rod 104 is fixed to one side wall of the cover 103 by screws, and a guide rail 105 is also fixed at the middle of the upper end of the base 106. The guide rail 105 can limit and guide the inner tube during the pushing process.

[0045] In this embodiment, the inlet cup 205 is embedded in the convex plate at the upper end of the housing 201. The inlet cup 205 has a hollow structure and the inlet end has a horn-shaped structure. The aerogel storage box 204 is fixed to one side wall of the housing 201 by the support plate 203. The top of the aerogel storage box 204 is reserved with guide rollers. When producing aerogel heat insulation oil pipe, when the inner tube just reaches the vicinity of the inlet cup 205, one end of the heat insulation material is fixed to the inner tube by hand. The inner tube moves forward and drives the heat insulation material to automatically cover the inner tube. The two guide rollers on the aerogel storage box 204 clamp the aerogel and play a corrective role. The movement direction of the heat insulation material is restricted by the inlet cup 205.

[0046] In this embodiment, the servo motor 206 is fixed to the upper end of the chassis 201 by bolts. The output shaft of the servo motor 206 is fixedly connected to the drive wheel 211. The transmission wheel 208 has a ring structure. The servo motor 206 drives the drive wheel 211 to rotate, and the drive wheel 211 then drives the transmission wheel 208 to rotate through the belt.

[0047] In this embodiment, the turntable 209 is fixed on one side wall of the transmission wheel 208, and the storage bin 210 is fixed on the turntable 209 by screws. When producing high vacuum heat-insulating oil pipes, when the inner tube reaches the outlet of the inlet cup 205, one end of the heat-insulating material is manually fixed to the inner tube. As the inner tube moves forward, the transmission wheel 208 drives the turntable 209 to rotate, so that the heat-insulating material is automatically wound around the inner tube. After the heat-insulating material is used up, the cover is opened to add more heat-insulating material. Two storage bins 210 are set to prevent the inconvenience of adding heat-insulating material when the rotation distance is too far.

[0048] In this embodiment, the storage tank 210 has a built-in bearing shaft, and a discharge port is provided on one side wall of the storage tank 210. A guide shaft is installed in the discharge port. The bearing shaft facilitates the application of the heat insulation material, and the guide shaft on the discharge port can guide the output of the heat insulation material to ensure its stable output.

[0049] In this embodiment, a controller 207 is also fixed on the upper end of the chassis 201. The controller 207 has an operation panel reserved on it, and the controller 207 controls the operation of the entire set of equipment.

[0050] In this embodiment, electric push rods 202 are fixed at the four corners of the bottom of the chassis 201. A bearing plate 203 is installed at the bottom of the electric push rods 202. The electric push rods 202 can adjust the height of the chassis 201, thereby making the guide rail 105, guide rail 202 and the inlet cup 205 coaxial.

[0051] In this embodiment, the baffle 303 is installed on one side of the top of the base 301 by screws, and the distance sensor 304 is fixed in the middle of the baffle 303 by screws. The guide rail 302 is also installed in the middle of the top of the base 301. When the distance sensor 304 detects that the inner tube has been pushed to a certain distance, it stops pushing and automatically records the difference between the inner and outer tubes to complete the heat insulation oil pipe assembly. Then, the new inner and outer tubes are replaced and the operation is repeated.

[0052] The specific working principle is as follows: After placing the device in position and connecting it to an external power source, the height of the housing 201 can be adjusted via the electric push rod 202, thereby ensuring that the guide rail 105, guide rail 202, and inlet cup 205 are coaxial. During use, the inner tube is placed on guide rail 105 on the base 106, and the drive motor 102 is activated. The drive motor 102 drives the gear 108 to rotate via the transmission shaft 107, which in turn drives the cover 103 to move under the action of the rack 101. The cover 103 then pushes the inner tube through the extended push rod 104, causing it to enter the winding mechanism 2. Since the winding mechanism 2 consists of a winding device and a coating device, the winding device operates on high-vacuum heat-insulating oil pipes, and the coating device operates on aerogel heat-insulating oil pipes. The specific process is as follows:

[0053] (1) When producing aerogel heat-insulating oil pipe, when the inner tube just reaches the vicinity of the inlet cup 205, one end of the heat-insulating material is fixed to the inner tube by hand. The inner tube moves forward and drives the heat-insulating material to automatically cover the inner tube. The two guide rollers on the aerogel storage box 204 clamp the aerogel and play a corrective role. The direction of movement of the heat-insulating material is restricted by the inlet cup 205.

[0054] (2) When producing high vacuum heat insulation oil pipe, when the inner tube reaches the outlet of the inlet cup 205, one end of the heat insulation material is fixed to the inner tube manually. Then, the servo motor 206 drives the drive wheel 211 to rotate. The drive wheel 211 drives the transmission wheel 208 to rotate through the belt. While the inner tube moves forward, the transmission wheel 208 drives the turntable 209 to rotate, so that the heat insulation material is automatically wrapped around the inner tube. After the heat insulation material is used up, the cover is opened to add heat insulation material. Two storage buckets 210 are set to prevent the inconvenience of adding heat insulation material when the rotation distance is too far. Finally, when the distance sensor 304 detects that the inner tube has been pushed to a certain distance, it stops pushing and automatically records the difference between the inner and outer tubes to complete the heat insulation oil pipe assembly. Replace the new inner and outer tubes and repeat the operation.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. An automatic winding, wrapping, and fitting device for heat insulation pipes, characterized in that: The machine includes an inner tube conveying mechanism (1), a winding mechanism (2), and an outer tube conveying mechanism (3). The winding mechanism (2) is located between the inner tube conveying mechanism (1) and the outer tube conveying mechanism (3). The inner tube conveying mechanism (1) includes racks (101) symmetrically mounted on a base (106). Gears (108) are connected to the upper end of the racks (101). A drive shaft (107) is provided between the gears (108). A cover (103) is installed on the outside of the gears (108). A drive motor (102) is installed on one side wall of the cover (103). A detachable extended push rod (104) is fixed on the side wall of the cover (103) adjacent to the drive motor (102). The structure (2) includes an inlet cup (205) installed on the upper end of the chassis (201). An aerogel storage box (204) is installed on one side wall of the chassis (201). A servo motor (206) is installed on one side of the inlet cup (205). A drive wheel (211) is installed on the output shaft of the servo motor (206). A transmission wheel (208) is connected to the drive wheel (211) by a belt. A turntable (209) is fixed on one side wall of the transmission wheel (208). Two sets of storage bins (210) are symmetrically installed on the turntable (209). The outer tube conveying mechanism (3) includes a baffle (303) fixed on one side of the upper end of the base (301). A distance sensor (304) is installed in the middle of the baffle (303).

2. The automatic winding, wrapping, and fitting equipment for heat insulation pipes according to claim 1, characterized in that: The rack (101) is fixed to both sides of the upper end of the base (106) by screws. The gear (108) meshes with the rack (101). The transmission shaft (107) is fixed between the gear (108). The transmission shaft (107) is connected to the cover (103) by bearings. The drive motor (102) is fixed to one side wall of the cover (103) by bolts. The output shaft of the drive motor (102) is fixedly connected to one end of the transmission shaft (107).

3. The automatic winding, wrapping, and fitting equipment for heat insulation pipes according to claim 1, characterized in that: The extended push rod (104) is fixed to one side wall of the cover (103) by screws, and a guide rail (105) is also fixed at the middle of the upper end of the base (106).

4. The automatic winding, wrapping, and fitting equipment for heat insulation pipes according to claim 1, characterized in that: The inlet cup (205) is embedded in the convex plate at the upper end of the chassis (201). The inlet cup (205) has a hollow structure and the inlet end has a horn-shaped structure. The aerogel storage box (204) is fixed on one side wall of the chassis (201) by a support plate (203). The top of the aerogel storage box (204) is reserved with guide rollers.

5. The automatic winding, wrapping, and fitting equipment for heat insulation pipes according to claim 1, characterized in that: The servo motor (206) is fixed to the upper end of the chassis (201) by bolts. The output shaft of the servo motor (206) is fixedly connected to the drive wheel (211). The transmission wheel (208) has a ring structure.

6. The automatic winding, wrapping, and fitting equipment for heat insulation pipes according to claim 1, characterized in that: The turntable (209) is fixed on one side wall of the transmission wheel (208), and the storage bucket (210) is fixed on the turntable (209) by screws.

7. The automatic winding, wrapping, and fitting equipment for heat insulation pipes according to claim 1, characterized in that: The storage hopper (210) has a built-in bearing shaft, and a discharge port is provided on one side wall of the storage hopper (210), with a guide shaft installed inside the discharge port.

8. The automatic winding, wrapping, and fitting equipment for heat insulation pipes according to claim 1, characterized in that: The upper part of the chassis (201) is also fixed with a controller (207), and the controller (207) has a reserved operation panel.

9. The automatic winding, wrapping, and fitting equipment for heat insulation pipes according to claim 1, characterized in that: Electric push rods (202) are fixed at the four corners of the bottom of the chassis (201), and a bearing plate (203) is installed at the bottom of the electric push rods (202).

10. An automatic winding, wrapping, and fitting device for heat insulation pipes according to claim 1, characterized in that: The baffle (303) is installed on one side of the top of the base (301) by screws, and the distance sensor (304) is fixed in the middle of the baffle (303) by screws. The guide rail (302) is also installed in the middle of the top of the base (301).