Connector positioning detection device for prefabricated directly-buried thermal insulation pipe production

Abstract

The invention provides a connector positioning detection device for prefabricated directly-buried thermal insulation pipe production, and relates to the technical field of pipeline detection, the connector positioning detection device comprises a balancing machine main body, and the top surface of the balancing machine main body is rotatably provided with a vertically arranged detection sleeve. According to the interface positioning detection device for prefabricated directly-buried thermal insulation pipe production provided by the invention, the balancing machine main body, the detection sleeve, the clamping block, the adjusting mechanism, the test bracket, the induction block and the pressure sensor are arranged, so that the weight of each part of the detection sleeve can be ensured to be in a symmetrical state, and the detection accuracy is ensured in the detection process. The interference to the balance of the pipeline is reduced, the problem of the balance of the pipeline caused by the uneven weight distribution due to the structure is reduced, the interference factors to the pipeline detection structure are reduced, the accuracy of the detection structure is improved, the accuracy of the detection result can be ensured through the numerical comparison of a plurality of sensors, and the detection efficiency is improved. And the condition of inaccurate detection data caused by a fault of a single sensor is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline detection, and in particular to an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes. Background Art

[0002] Prefabricated, direct-buried insulated pipes, crucial for conveying media in urban centralized heating and petrochemical pipelines, offer advantages such as convenient construction and excellent thermal insulation. Since these pipes are mostly circular, their joints are prone to irregularities at the factory, significantly impacting installation. The structural stability and sealing of these joints are crucial for the safe operation of subsequent projects. Therefore, during the production of prefabricated, direct-buried insulated pipes, joint detection and positioning are crucial for ensuring product quality. Summary of the Invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes.

[0004] The present invention proposes an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes, comprising a balancing machine body, a vertically arranged detection sleeve rotatably mounted on the top surface of the balancing machine body, a mounting slot being formed at the top end of the detection sleeve, the mounting slot being coaxial with the detection sleeve, a plurality of clamping blocks being mounted in the mounting slot, the plurality of clamping blocks being arranged in a circular array and capable of clamping and fixing the pipe, an adjustment mechanism being mounted on the detection sleeve, the adjustment mechanism being capable of adjusting the positions of the plurality of clamping blocks in the mounting slot, the adjustment mechanism being a symmetrical structure;

[0005] A test bracket is also fixedly installed on the top surface of the balancing machine body. The transverse section of the test bracket is located above the detection sleeve. A test port is opened through the transverse section of the test bracket, and the test port is located directly above the detection sleeve. The axis of the test port coincides with the axis of the detection sleeve. Four sensing blocks are installed in the test port. The four sensing blocks are arranged in a cross shape. Pressure sensors are installed on the four sensing blocks. The four sensing blocks can all rest against the outer periphery of the pipeline.

[0006] Preferably, the adjustment mechanism includes a driving inclined plane block, a cross, a reset assembly and a positioning assembly; the inner wall of the mounting groove is provided with a transverse groove that is slidably matched with the clamping block, the number of the transverse grooves is the same as the number of the clamping blocks and is arranged in a one-to-one correspondence, the number of the driving inclined plane blocks is the same as the number of the clamping blocks and is arranged in a one-to-one correspondence, a plurality of the driving inclined plane blocks are respectively slidably installed in a plurality of transverse grooves, the inclined plane of the cross is slidably matched with the inclined plane of the driving inclined plane block, a plurality of the driving inclined plane blocks are fixedly connected to a cross, and a cross groove that is slidably matched with the cross is provided in the main body of the balancing machine;

[0007] The reset assembly can drive the clamping block to slide and reset in the installation groove;

[0008] The positioning assembly can fix the position of the cross in the fixing groove.

[0009] Preferably, the reset assembly includes a reset slider and a reset spring; the reset slider is fixedly connected to the clamping block, the inner wall of the transverse groove is provided with a reset groove that slides with the reset slider, the reset spring is installed in the reset groove, and the two ends of the reset spring are respectively fixedly connected to the reset slider and the inner wall of the end of the limit groove.

[0010] Preferably, the positioning assembly includes a positioning block, a positioning spring and a straight rod; telescopic holes are provided at the ends of the cross, the positioning block is slidably installed in the telescopic hole, the positioning spring is located in the telescopic hole, the two ends of the positioning spring are respectively fixedly connected to one end of the positioning block and the inner wall of the end of the telescopic hole, the positioning spring can drive the end of the positioning block to press against the inner wall of the cross slot, one end of the straight rod slides through the detection sleeve and is fixedly connected to the end of the positioning block, and a vertical groove that slides with the straight rod is provided on the balancing machine body.

[0011] Preferably, an adjustment structure is further installed on the balancing machine body, and the adjustment structure can drive the positioning block to retract in the telescopic hole.

[0012] Preferably, the adjustment structure includes an adjusting ring, a sliding sleeve, an adjusting drive block and a lifting spring; the adjusting ring is slidingly sleeved on the detection sleeve, and the end of the straight rod away from the positioning block slides through the adjusting ring, and the sliding sleeve is slidingly sleeved on the adjusting ring, the number of the adjusting drive blocks is the same as the number of the straight rods and is arranged in a one-to-one correspondence, the adjusting drive block is fixedly mounted on the inner wall of the adjusting ring, and a lifting slot is provided on the adjusting ring to slide with the adjusting drive block, the end of the straight rod away from the positioning block is located in the lifting slot, the inclined surface of the adjusting drive block can slide with the end of the straight rod, and the two ends of the lifting spring are respectively fixedly connected to the adjusting ring and the transverse section of the adjusting drive block, and the number of the lifting springs is the same as the number of the adjusting drive blocks and is arranged in a one-to-one correspondence.

[0013] Preferably, four elastic telescopic rods are installed in the test port, and the four sensing blocks are fixedly installed on the output shafts of the four elastic telescopic rods respectively.

[0014] Preferably, a motor for driving the detection sleeve to rotate on the balancing machine body is installed in the balancing machine body.

[0015] The interface positioning detection device for the production of prefabricated direct-buried insulated pipes proposed by the present invention has the following beneficial effects: through the provision of a balancing machine main body, a detection sleeve, a clamping block, an adjustment mechanism, a test bracket, a sensing block and a pressure sensor, it can ensure that the weight of each part of the detection sleeve is in a symmetrical state, ensuring that during the detection process, interference with the balance of the pipeline is reduced, reducing the uneven weight distribution due to the structure, resulting in problems with the balance of the pipeline, reducing interference factors to the pipeline detection structure, and improving the accuracy of the detection structure. In addition, the numerical values ​​of multiple sensors can be compared and verified with each other to ensure the accuracy of the detection results, and reduce the situation where inaccurate detection data caused by failure of a single sensor is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0017] Figure 2 The present invention proposes an interface positioning detection device for the production of prefabricated direct buried insulation pipes Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a cross-sectional view of a detection sleeve in an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0019] Figure 4 The present invention proposes an interface positioning detection device for the production of prefabricated direct buried insulation pipes Figure 3 Enlarged view of point B in the middle;

[0020] Figure 5 The present invention proposes an interface positioning detection device for the production of prefabricated direct buried insulation pipes Figure 3 Enlarged view of point C in the middle;

[0021] Figure 6 This is a structural schematic diagram of a clamping block and a reset slider in an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0022] Figure 7 This is a three-dimensional cross-sectional view of a detection sleeve in an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0023] Figure 8 This is a structural diagram of a driving ramp block and a cross in an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0024] Figure 9 This is a structural diagram of a cross in an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0025] Figure 10 This is a structural schematic diagram of the sensing block on the test bracket in the interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0026] Figure 11 This is a three-dimensional cross-sectional view of an adjusting ring in an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0027] Figure 12 This is a three-dimensional cross-sectional view of a sliding sleeve in an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention;

[0028] Figure 13 This is a structural schematic diagram of a positioning block and a straight rod in an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes proposed by the present invention.

[0029] In the figure: 1. Balancing machine body; 2. Detection sleeve; 3. Clamping block; 4. Test bracket; 5. Sensing block; 6. Driving ramp block; 7. Cross; 8. Reset slider; 9. Reset spring; 10. Positioning block; 11. Positioning spring; 12. Straight rod; 13. Adjusting ring; 14. Sliding sleeve; 15. Adjusting driving block; 16. Lifting spring; 17. Elastic telescopic rod. DETAILED DESCRIPTION

[0030] Reference Figures 1-13The present invention proposes an interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes, comprising a balancing machine body 1, a vertically arranged detection sleeve 2 being rotatably installed on the top surface of the balancing machine body 1, a motor for driving the detection sleeve 2 to rotate on the balancing machine body 1 being installed in the balancing machine body 1, a mounting groove being provided on the top of the detection sleeve 2, the mounting groove being coaxial with the detection sleeve 2, four clamping blocks 3 being installed in the mounting groove, the side cross-section of the clamping block 3 being a right-angled trapezoid, the side of the four clamping blocks 3 being close to each other being a vertical surface, the four clamping blocks 3 being arranged in a ring array, the four clamping blocks 3 being able to clamp and fix the pipe, and the detection sleeve 2 being installed on the detection sleeve There is an adjustment mechanism, which can adjust the positions of the four clamping blocks 3 in the installation groove. The adjustment mechanism is a symmetrical structure. During specific operation, the tubular part of the pipeline is inserted into the installation groove, and the four clamping blocks 3 are driven by the adjustment mechanism to move synchronously together and clamp the tubular part of the pipeline, so that the pipeline is in a vertical state, and its key position is on the axis of the pipeline. During testing, the motor drives the detection sleeve 2 and the pipeline to rotate at high speed. Since the adjustment mechanism is a symmetrical structure, the balance of the rotation of the detection sleeve 2 will not be affected by the inconsistent weight distribution of the adjustment mechanism on the detection sleeve 2 during the detection process.

[0031] like Figure 1 、 Figure 2 and Figure 10As shown in , a test bracket 4 is also fixedly installed on the top surface of the balancing machine body 1, and the transverse section of the test bracket 4 is located above the detection sleeve 2. A test port is opened through the transverse section of the test bracket 4, and the test port is located just above the detection sleeve 2, and the axis of the test port coincides with the axis of the detection sleeve 2. Four sensing blocks 5 are installed in the test port, and the four sensing blocks 5 are arranged in a cross shape. Four elastic telescopic rods 17 are installed in the test port, and the output shafts of the elastic telescopic rods 17 always have a tendency to extend. The four sensing blocks 5 are respectively fixed on the output shafts of the four elastic telescopic rods 17, and pressure sensors are installed on the four sensing blocks 5. The four sensing blocks 5 can all rest against the outer periphery of the pipeline. When clamping the pipeline, the pipeline needs to be inserted into the mounting groove through the test port, so that the four sensing blocks 5 all rest against the outer periphery of the pipeline interface. The four elastic telescopic rods 17 always drive the four sensing blocks 5 to rest against the outer periphery of the pipeline interface. The two opposing four sensing blocks 5 form a group, and the pipeline is Regarding its axially centrally symmetrical structure, during the test process, when the pipeline is in a standard balanced state, the pressures sensed by the pressure sensors on the four sensing blocks 5 will fluctuate in a regular curve, but the numerical curve trajectories detected by the pressure sensors on the two relative sensing blocks 5 (non-adjacent) are different (because the sensing blocks 5 are against the cutting groove position of the pipeline interface, the pressure effect sensed by the pressure sensors will change). The curves formed by the pressure value changes sensed by the four pressure sensors are mutually verified; when the center of the pipeline deviates from its axis, the maximum pressure and minimum pressure sensed by the pressure sensor will change from the standard value. If the pressure value sensed by the pressure sensor is within the qualified range, or after adjustment, the pressure value sensed by the pressure sensor is within the qualified range, the pipeline balance test is qualified. When the pipeline cannot reach the qualified range after adjustment, the balance of the pipeline does not meet the standard, which can also be mutually verified by the four pressure sensors.

[0032] like Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9 As shown in , the adjustment mechanism includes a driving inclined plane block 6, a cross 7, a reset assembly and a positioning assembly; the inner wall of the mounting groove is provided with a transverse groove that slides with the clamping block 3, the number of the transverse grooves is the same as the number of the clamping blocks 3 and is arranged one-to-one, the number of the driving inclined plane blocks 6 is the same as the number of the clamping blocks 3 and is arranged one-to-one, the four driving inclined plane blocks 6 are slidably installed in the four transverse grooves, the inclined surface of the cross 7 slides with the inclined surface of the driving inclined plane block 6, the four driving inclined plane blocks 6 are fixedly connected to a cross 7, and the connection structure of the four driving inclined plane blocks 6 and a cross 7 is as shown in Figure 8As shown in the figure, a cross slot is provided in the balancing machine body 1 for sliding cooperation with the cross 7, and the cross slot and the mounting slot partially overlap; the reset assembly can drive the clamping block 3 to slide and reset in the mounting slot; the positioning assembly can fix the position of the cross 7 in the fixing slot. In actual operation, the cross 7 is first loosened by the positioning assembly, and the staff grasps the interface of the pipe, passes the tubular part of the pipe through the test port and inserts it into the mounting slot, so that the tubular part of the pipe is against the middle position of the cross 7, presses the pipe, and the pipe pushes the cross 7 down. The cross 7 drives the four driving inclined plane blocks 6 to descend synchronously. Due to the sliding cooperation between the driving inclined plane block 6 and the inclined surface of the clamping block 3, the four clamping blocks 3 are driven to move synchronously close to each other. The four clamping blocks 3 squeeze the pipe to the middle position of the mounting slot, so that the pipe approaches the middle position. Finally, the pipe is clamped and fixed by the four clamping blocks 3, and the position of the cross 7 is fixed by the positioning assembly, and the positions of the driving inclined plane block 6 and the clamping block 3 are fixed at the same time, thereby ensuring the stability and firmness of the PCB board clamping.

[0033] like Figure 3 、 Figure 4 and Figure 8 As shown in the figure, the reset assembly includes a reset slider 8 and a reset spring 9; five reset sliders 8 are fixedly connected to the clamping block 3, one of which is fixedly connected to the bottom of the clamping block 3, and the other four reset sliders 8 are symmetrically arranged on both sides of the clamping block 3. The inner wall of the transverse groove is provided with a reset groove that slides with the reset slider 8, and the reset spring 9 is installed in the reset groove. The two ends of the reset spring 9 are respectively fixedly connected to the reset slider 8 and the inner wall of the end of the limit groove. After the pipeline balance test is completed, when the pipeline is released, the rebound effect of the reset spring 9 pushes the reset slider 8 to slide and reset, and the reset slider 8 drives the clamping block 3 to slide and reset, and at the same time drives the traction clamping block 3 of the inclined plane block 6 to slide and reset in the transverse groove.

[0034] In actual situations, when the diameter of the tubular portion of the pipeline is thinner, the depth of the pipeline inserted into the installation groove is deeper, and the protruding length of the pipeline cannot be controlled. Therefore, the cross 7 is designed to be lowered without the need to push the pipeline down.

[0035] like Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 13As shown in, the positioning assembly includes a positioning block 10, a positioning spring 11 and a straight rod 12; the ends of the cross 7 are provided with telescopic holes, the positioning block 10 is slidably installed in the telescopic hole, the positioning spring 11 is located in the telescopic hole, the two ends of the positioning spring 11 are respectively fixedly connected with one end of the positioning block 10 and the inner wall of the end of the telescopic hole, the positioning spring 11 can drive the end of the positioning block 10 to press against the inner wall of the cross groove, the inner wall of the cross groove and the end of the positioning block 10 are provided with teeth, and the engagement of the teeth increases the friction force, thereby improving the firmness and stability of the position of the positioning block 10 and the cross 7, and one end of the straight rod 12 slides The dynamic penetration detection sleeve 2 is fixedly connected to the end of the positioning block 10. A vertical groove that slides with the straight rod 12 is provided on the balancing machine body 1. When clamping the pipeline, the staff can press the end of the straight rod 12, and the straight rod 12 pushes the positioning block 10 to retract in the telescopic hole, so that the positioning block 10 and the inner wall of the cross groove are disengaged, and then the four straight rods 12 are pushed down in the vertical groove. The straight rod 12 drives the positioning block 10, the cross 7 and the driving inclined plane block 6 to descend synchronously, so that the driving inclined plane block 6 drives the clamping block 3 to move horizontally to clamp and fix the pipeline, without relying on the push of the pipeline for clamping and fixing.

[0036] In actual operation, there are four straight rods 12. To push the cross 7 to maintain a horizontal state and lower it, it is necessary to press the straight rods 12 at the same time, which is inconvenient to operate. Therefore, the following design is proposed.

[0037] like Figure 1 、 Figure 2The balancing machine body 1 is also equipped with an adjustment structure, which can drive the positioning block 10 to retract in the telescopic hole; the adjustment structure includes an adjustment ring 13, a sliding sleeve 14, an adjustment drive block 15 and a lifting spring 16; the adjustment ring 13 is slidably mounted on the detection sleeve 2, and the end of the straight rod 12 away from the positioning block 10 slides through the adjustment ring 13, and the sliding sleeve 14 is slidably mounted on the adjustment ring 13. The number of the adjustment drive blocks 15 is the same as the number of the straight rods 12 and is set one by one. The adjustment drive blocks 15 are fixed. Installed on the inner wall of the adjusting collar 13, the adjusting collar 13 is provided with a lifting slot that slides with the adjusting drive block 15. The end of the straight rod 12 away from the positioning block 10 is located in the lifting slot. The inclined surface of the adjusting drive block 15 can slide with the end of the straight rod 12. The two ends of the lifting spring 16 are respectively fixedly connected to the adjusting collar 13 and the transverse section of the adjusting drive block 15. The number of the lifting springs 16 is the same as the number of the adjusting drive blocks 15 and is set one by one. During the specific adjustment, the staff pinches the adjusting collar 13 to adjust the position of the adjusting collar 13. 3. Slide the adjusting ring 13 and the sliding sleeve 14 at the same time, so that the sliding sleeve 14 slides down on the adjusting ring 13, and the sliding sleeve 14 drives the adjusting driving block 15 to descend synchronously. When the adjusting driving block 15 descends, the inclined surface of the adjusting driving block 15 and the end of the straight rod 12 slide together, thereby driving the straight rod 12 to slide horizontally, and then the straight rod 12 drives the positioning block 10 to slide horizontally, so that the positioning block 10 is separated from the inner wall of the cross groove, thereby ensuring that the cross 7 can be raised and lowered normally, thereby driving the four clamping blocks 3 The pipes are clamped and fixed close to each other. After the pipes are clamped and fixed, the sliding sleeve 14 is released by hand. Under the rebound action of the lifting spring 16, the adjustment drive block 15 is pushed upward, and the sliding sleeve 14 is synchronously raised by the adjustment drive block 15. Under the rebound action of the positioning spring 11, the positioning block 10 is driven to slide and reset in the telescopic hole, so that the positioning block 10 is pressed against the inner wall of the cross 7, so that the teeth at the end of the positioning block 10 are engaged with the teeth on the inner wall of the cross 7, thereby clamping the position of the positioning block 10.

[0038] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes, characterized in that: The invention comprises a balancing machine body (1), wherein a vertically arranged detection sleeve (2) is rotatably mounted on the top surface of the balancing machine body (1), a mounting groove is provided at the top end of the detection sleeve (2), the mounting groove is coaxial with the detection sleeve (2), a plurality of clamping blocks (3) are mounted in the mounting groove, the plurality of clamping blocks (3) are arranged in a ring array, the plurality of clamping blocks (3) can clamp and fix the pipe, an adjustment mechanism is mounted on the detection sleeve (2), the adjustment mechanism can adjust the position of the plurality of clamping blocks (3) in the mounting groove, and the adjustment mechanism is a symmetrical structure; A test bracket (4) is also fixedly installed on the top surface of the balancing machine body (1), and the transverse section of the test bracket (4) is located above the detection sleeve (2). A test port is opened through the transverse section of the test bracket (4), and the test port is located directly above the detection sleeve (2). The axis of the test port coincides with the axis of the detection sleeve (2). Four sensing blocks (5) are installed in the test port, and the four sensing blocks (5) are arranged in a cross shape. Pressure sensors are installed on the four sensing blocks (5), and the four sensing blocks (5) can all be against the outer periphery of the pipeline.

2. The interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes according to claim 1 is characterized in that: The adjustment mechanism includes a driving bevel block (6), a cross (7), a reset assembly and a positioning assembly; the inner wall of the installation groove is provided with a transverse groove that is slidably matched with the clamping block (3), the number of the transverse grooves is the same as the number of the clamping blocks (3) and is arranged in a one-to-one correspondence, the number of the driving bevel blocks (6) is the same as the number of the clamping blocks (3) and is arranged in a one-to-one correspondence, a plurality of the driving bevel blocks (6) are respectively slidably installed in a plurality of transverse grooves, the inclined surface of the cross (7) is slidably matched with the inclined surface of the driving bevel block (6), a plurality of the driving bevel blocks (6) are fixedly connected to a cross (7), and a cross groove that is slidably matched with the cross (7) is provided in the balancing machine body (1); The reset assembly can drive the clamping block (3) to slide and reset in the installation groove; The positioning assembly is capable of fixing the position of the cross (7) in the fixing groove.

3. The interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes according to claim 2 is characterized in that: The reset assembly includes a reset slider (8) and a reset spring (9); the reset slider (8) is fixedly connected to the clamping block (3); the inner wall of the transverse groove is provided with a reset groove that slides with the reset slider (8); the reset spring (9) is installed in the reset groove; and the two ends of the reset spring (9) are respectively fixedly connected to the reset slider (8) and the inner wall of the end of the limit groove.

4. The interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes according to claim 3 is characterized in that: The positioning assembly includes a positioning block (10), a positioning spring (11) and a straight rod (12); telescopic holes are provided at the ends of the cross (7), the positioning block (10) is slidably installed in the telescopic hole, the positioning spring (11) is located in the telescopic hole, the two ends of the positioning spring (11) are fixedly connected to one end of the positioning block (10) and the inner wall of the end of the telescopic hole respectively, the positioning spring (11) can drive the end of the positioning block (10) to press against the inner wall of the cross slot, one end of the straight rod (12) slides through the detection sleeve (2) and is fixedly connected to the end of the positioning block (10), and a vertical groove that slides with the straight rod (12) is provided on the balancing machine body (1).

5. The interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes according to claim 4 is characterized in that: An adjustment structure is also installed on the balancing machine body (1), and the adjustment structure can drive the positioning block (10) to retract in the telescopic hole.

6. The interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes according to claim 5, characterized in that: The adjustment structure includes an adjustment ring (13), a sliding sleeve (14), an adjustment drive block (15) and a lifting spring (16); the adjustment ring (13) is slidably mounted on the detection sleeve (2); the end of the straight rod (12) away from the positioning block (10) slides through the adjustment ring (13); the sliding sleeve (14) is slidably mounted on the adjustment ring (13); the number of the adjustment drive blocks (15) is the same as the number of the straight rods (12) and is arranged in a one-to-one correspondence; the adjustment drive blocks (15) are fixedly mounted on the adjustment ring (13), a lifting slot is provided on the adjusting collar (13) for slidingly cooperating with the adjusting drive block (15), one end of the straight rod (12) away from the positioning block (10) is located in the lifting slot, the inclined surface of the adjusting drive block (15) can slide with the end of the straight rod (12), the two ends of the lifting spring (16) are respectively fixedly connected to the adjusting collar (13) and the transverse section of the adjusting drive block (15), and the number of the lifting springs (16) is the same as the number of the adjusting drive blocks (15) and is arranged in a one-to-one correspondence.

7. The interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes according to claim 1 is characterized in that: Four elastic telescopic rods (17) are installed in the test port, and the four sensing blocks (5) are respectively fixedly installed on the output shafts of the four elastic telescopic rods (17).

8. The interface positioning detection device for the production of prefabricated direct-buried thermal insulation pipes according to claim 1 is characterized in that: A motor for driving the detection sleeve (2) to rotate on the balancing machine body (1) is installed in the balancing machine body (1).

Images