Underground communication honeycomb tube traction device

Abstract

The utility model relates to the technical field of plastic pipeline production equipment, in particular to an underground communication honeycomb pipe traction device, which is characterized in that two groups of crawlers distributed up and down are rotatably arranged in a traction box, and a plurality of groups of rubber blocks are uniformly distributed on the surfaces of the crawlers and are used for contacting a honeycomb pipe; the embedding groove which can be fit with the outer wall of the honeycomb tube in shape is formed in the side, away from the connected crawler belt, of the rubber block, the contact area between the rubber block and the honeycomb tube is increased, friction force between the rubber block and the honeycomb tube is increased, and therefore the traction capacity of the honeycomb tube is improved, the traction process is more stable, and the slipping risk is reduced; the technical problem that in the prior art, traction force applied to the honeycomb pipe is not stable is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe production equipment, and more specifically, to an underground communication honeycomb pipe traction device. Background Art

[0002] The honeycomb tube tractor is generally a crawler-type tractor with two upper and lower tracks. A certain number of rubber blocks are embedded on the surface of the tracks for contacting the honeycomb tube. However, since the rubber blocks only contact the upper and lower sides of the honeycomb tube, the contact area is insufficient, resulting in insufficient traction.

[0003] The prior art discloses a traction device for producing plastic pipes, which includes: a frame, a traction part and a transmission part; the frame includes a first frame and a second frame, the first frame has a first through hole, the second frame has a second through hole, the first through hole and the second through hole are arranged opposite to each other, and are used to form a traction channel for the plastic pipe; the traction part includes a plurality of traction mechanisms, the plurality of traction mechanisms are evenly distributed in annular shapes on the axial side of the traction channel, each traction mechanism includes a roller frame, a crawler, a driving roller and a driven roller, the roller frame and the traction channel extend in the same direction, the driving roller and the driven roller are respectively rotatably arranged at opposite ends of the roller frame, and the crawler is tensioned between the driving roller and the driven roller. This solution enables the crawlers of the plurality of traction mechanisms to contact the pipe wall of the plastic pipe respectively.

[0004] Since the surface of the rubber block in the prior art is flat, the contact area relative to the honeycomb tube is small, the friction is small, and the traction force formed is unstable and easy to slip during the traction process. If the pressure between the traction tracks is increased, the tube will be deformed inside due to uneven force, affecting product quality. There is a technical problem that the traction force applied to the honeycomb tube is unstable. Utility Model Content

[0005] The utility model aims to overcome the drawback of the prior art that the traction force applied to the honeycomb pipe is unstable, and provides an underground communication honeycomb pipe traction device.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A traction device for an underground communication cellular tube comprises a traction box, two groups of crawlers rotatably arranged in the traction box, and a plurality of groups of rubber blocks evenly distributed on the surface of the crawlers, wherein the two groups of crawlers are distributed up and down, and a groove that can fit the shape of the outer wall of the honeycomb tube is provided on the side of the rubber block away from the crawlers, and a traction channel for traction of the honeycomb tube is formed between the upper and lower grooves.

[0008] The utility model discloses an underground communication cellular tube traction device, which adopts two groups of crawlers distributed up and down and rotatably arranged in a traction box, and evenly distributes a plurality of groups of rubber blocks on the crawler surface for contacting the honeycomb tube, and arranges an embedding groove which can fit the shape of the outer wall of the honeycomb tube on the side of the rubber block away from the connected crawler, so as to increase the contact area between the rubber block and the honeycomb tube, increase the friction between the rubber block and the honeycomb tube, thereby improving the traction capacity of the honeycomb tube, making the traction process more stable, reducing the risk of slipping, and effectively solving the technical problem of unstable traction force applied to the honeycomb tube in the prior art.

[0009] Furthermore, the cross-sectional shape of the embedding groove is W-shaped, and the angles of the two groove corners at the bottom of the W-shaped embedding groove are 120 degrees. The cross-sectional shape of the embedding groove is designed to be W-shaped, which is consistent with the shape of the upper and lower surfaces of the seven-hole honeycomb tube, so that the embedding groove of the lower rubber block can be embedded with the lower end surface of the outer wall of the seven-hole honeycomb tube. Since the direction of the upper rubber block is opposite to that of the lower rubber block, the upper embedding groove is M-shaped, which is embedded with the upper end surface of the outer wall of the seven-hole honeycomb tube and can fit with the edges and corners of the upper and lower surfaces of the honeycomb tube; since the edges and corners of the outer wall of the seven-hole honeycomb tube are 120 degrees, the angles of the two groove corners at the bottom of the W-shaped embedding groove are set to 120 degrees, so that the edges and corners can perfectly complement each other and avoid gaps.

[0010] Furthermore, several groups of rubber blocks are arranged in parallel with each other. The several groups of rubber blocks are arranged in parallel with each other so that the traction channel can stably traction the honeycomb tube and avoid distortion of the honeycomb tube.

[0011] Furthermore, an outlet and an inlet are respectively provided on opposite sides of the traction box, and the two ends of the two groups of crawlers are respectively arranged between the outlet and the inlet, and the traction box is provided with a support plate at the bottom of the inlet side. An outlet and an inlet are respectively provided on opposite sides of the traction box to facilitate connection with the traction channel, and the support plate provided at the bottom of the inlet side supports the honeycomb tube.

[0012] Furthermore, the traction box is provided with a blowing device for drying the surface moisture of the honeycomb tube at the inlet side, and the blowing device is arranged on the side of the support plate away from the traction box. The blowing device for drying the surface moisture of the honeycomb tube is arranged on the side of the support plate away from the traction box to remove water droplets attached to the surface of the honeycomb tube, thereby improving the safety of the product surface and subsequent operations, and cooling the honeycomb tube to improve the product quality.

[0013] Furthermore, the blowing device includes an adjustment bracket connected to the traction box at one end, an elastic clamp connected to the other end of the adjustment bracket, and an air ring detachably connected to the elastic clamp. The adjustment bracket can adjust the distance between the air ring and the support plate and the horizontal height of the air ring; the honeycomb tube can pass through the air ring, and the air ring can radially supply air to the honeycomb tube. The adjustment bracket can adjust the distance between the air ring and the support plate and the horizontal height of the air ring, which is convenient for changing the position of the air ring; the honeycomb tube is inserted into the air ring, so that the air ring radially supplies air to the honeycomb tube, forming 360° blowing without dead angles, improving the appearance of the product and improving the safety of subsequent traction and cutting.

[0014] Furthermore, the inner wall of the wind ring is surrounded by a plurality of ventilation holes, the outer wall of the wind ring is provided with an air intake column that can be connected to an air source, and the air intake column is provided with an air intake hole connected to the ventilation hole. The inner wall of the wind ring is surrounded by a plurality of ventilation holes, and the air source can supply air to the ventilation hole through the air intake holes of the air intake column on the outer wall, so that the air supply and air delivery are separated at the positions of the inner and outer walls, and the air pipe is prevented from contacting the honeycomb tube.

[0015] Furthermore, the adjustment bracket includes a horizontal arm with one end connected to the traction box, an L-shaped arm with one end movably connected to the other end of the horizontal arm, and a vertical arm movably connected to the other end of the L-shaped arm, one end of the L-shaped arm can adjust the installation position relative to the horizontal arm, the vertical arm can adjust the installation position relative to the other end of the L-shaped arm, and the adjustment direction of the L-shaped arm relative to the horizontal arm is perpendicular to the adjustment direction of the vertical arm relative to the L-shaped arm. Since one end of the L-shaped arm can adjust the installation position relative to the horizontal arm, the vertical arm can adjust the installation position relative to the other end of the L-shaped arm, and the adjustment direction of the L-shaped arm relative to the horizontal arm is perpendicular to the adjustment direction of the vertical arm relative to the L-shaped arm, the spacing between the air ring and the support plate and the horizontal height of the air ring can be adjusted.

[0016] Furthermore, the outer walls at both ends of the L-shaped arm are respectively slidably connected to the inner walls of the horizontal arm and the vertical arm, and the horizontal arm and the vertical arm are respectively threadedly connected with adjustment bolts that can abut against the outer walls of the L-shaped arm. The outer walls at both ends of the L-shaped arm are respectively slidably connected to the inner walls of the horizontal arm and the vertical arm, so that the position of the L-shaped arm relative to the horizontal arm and the vertical arm can be adjusted, and the adjustment bolts for adjusting the horizontal arm and the vertical arm respectively abut against the outer walls of the L-shaped arm, so that the position of the L-shaped arm relative to the horizontal arm and the vertical arm can be fixed.

[0017] Furthermore, the tension clamp includes a fixed claw connected to the bottom of the vertical arm, an adjusting claw rotatably connected to the fixed claw, and a tension bolt axially rotatably connected to the fixed claw, the threaded portion of the tension bolt is threadedly connected to the adjusting claw, and the outer wall of the tension bolt is sleeved with a spring whose two ends respectively abut against the fixed claw and the adjusting claw. One end of the tension bolt is axially rotatably connected to the fixed claw, and the threaded portion of the tension bolt is threadedly connected to the adjusting claw. Since the adjusting claw is rotatably connected to the fixed claw, the spacing between the fixed claw and the adjusting claw can be adjusted by screwing the tension bolt, thereby realizing the control of the clamping action; the spring can give the adjusting claw and the fixed claw an outward elastic force, making the adjustment of the tension bolt more labor-saving and convenient.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model discloses an underground communication cellular tube traction device, which adopts two groups of crawlers distributed up and down and rotatably arranged in a traction box, and evenly distributes a plurality of groups of rubber blocks on the crawler surface for contacting the honeycomb tube, and arranges an embedding groove which can fit the shape of the outer wall of the honeycomb tube on the side of the rubber block away from the connected crawler, so as to increase the contact area between the rubber block and the honeycomb tube, increase the friction between the rubber block and the honeycomb tube, thereby improving the traction capacity of the honeycomb tube, making the traction process more stable, reducing the risk of slipping, and effectively solving the technical problem of unstable traction force applied to the honeycomb tube in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an underground communication cellular tube traction device;

[0021] Figure 2 It is a schematic diagram of the structure of the rubber block;

[0022] Figure 3 It is the structural schematic diagram of the wind ring;

[0023] Figure 4 A schematic diagram of the structure of the adjustment bracket.

[0024] In the attached figure: 1. traction box; 11. outlet; 12. inlet; 2. track; 3. rubber block; 4. groove; 5. support plate; 6. adjustment bracket; 61. horizontal arm; 62. L-shaped arm; 63. vertical arm; 64. adjustment bolt; 7. tension clamp; 71. fixing claw; 72. adjusting claw; 73. tension bolt; 8. air ring; 81. ventilation hole; 82. air intake column; 83. air intake hole; 9. fixing plate. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with specific implementation methods. The drawings are only used for exemplary descriptions, and are only schematic diagrams, not actual pictures, and cannot be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0026] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] Embodiment 1

[0028] like Figure 1 to Figure 2 The figure shows the first embodiment of an underground communication cellular tube traction device of the utility model.

[0029] A traction device for underground communication honeycomb pipes, comprising a traction box 1, two groups of crawlers 2 rotatably arranged in the traction box 1, and a plurality of groups of rubber blocks 3 evenly distributed on the surface of the crawlers 2, wherein the two groups of crawlers 2 are distributed up and down, and a groove 4 that can fit the shape of the outer wall of the honeycomb pipe is arranged on the side of the rubber block 3 away from the crawlers 2, and a traction channel for traction of the honeycomb pipe is formed between the grooves 4 on the upper and lower sides. The cross-sectional shape of the groove 4 is W-shaped, and the angle of the two groove angles at the bottom of the W-shaped groove 4 is 120 degrees. The plurality of groups of rubber blocks 3 are arranged parallel to each other.

[0030] In this embodiment, if Figure 1 to Figure 2 As shown, two groups of crawlers 2 distributed up and down are rotatably arranged in a traction box 1, and a plurality of groups of rubber blocks 3 are evenly distributed on the surface of the crawlers 2 for contacting the honeycomb tube. An embedding groove 4 that can fit the shape of the outer wall of the honeycomb tube is provided on the side of the rubber block 3 away from the connected crawler 2, thereby increasing the contact area between the rubber block 3 and the honeycomb tube, and increasing the friction between the rubber block 3 and the honeycomb tube, thereby improving the traction ability of the honeycomb tube, making the traction process more stable, reducing the risk of slipping, and effectively solving the technical problem of unstable traction applied to the honeycomb tube in the prior art.

[0031] In this embodiment, if Figure 2As shown, the cross-sectional shape of the embedding groove 4 is designed to be W-shaped, which is consistent with the shape of the upper and lower surfaces of the seven-hole honeycomb tube, so that the embedding groove 4 of the lower rubber block 3 can be embedded with the lower end surface of the outer wall of the seven-hole honeycomb tube. Since the direction of the upper rubber block 3 is opposite to that of the lower rubber block 3, the upper embedding groove 4 is M-shaped, which is embedded with the upper end surface of the outer wall of the seven-hole honeycomb tube and can fit with the edges and corners of the upper and lower surfaces of the honeycomb tube; since the edges and corners of the outer wall of the seven-hole honeycomb tube are 120 degrees, the angles of the two groove corners at the bottom of the W-shaped embedding groove 4 are set to 120 degrees, so that the edges and corners can perfectly complement each other and avoid gaps.

[0032] In this embodiment, if Figure 1 As shown, a plurality of groups of rubber blocks 3 are arranged parallel to each other, so that the traction channel can stably pull the honeycomb tube and avoid distortion of the honeycomb tube.

[0033] Embodiment 2

[0034] like Figure 1 and Figure 3 The figure shows a second embodiment of an underground communication cellular tube traction device of the utility model.

[0035] This embodiment is similar to the first embodiment, except that: an outlet 11 and an inlet 12 are respectively provided on opposite sides of the traction box 1, and two ends of the two sets of crawlers 2 are respectively provided between the outlet 11 and the inlet 12, and a support plate 5 is provided at the bottom of the traction box 1 on the side of the inlet 12. The traction box 1 is provided with a blowing device for drying the surface moisture of the honeycomb tube on the side of the inlet 12, and the blowing device is provided on the side of the support plate 5 away from the traction box 1. The blowing device includes an adjustment bracket 6 connected to the traction box 1 at one end, an elastic clamp 7 connected to the other end of the adjustment bracket 6, and an air ring 8 detachably connected to the elastic clamp 7. The adjustment bracket 6 can adjust the spacing between the air ring 8 and the support plate 5 and the horizontal height of the air ring 8; the honeycomb tube can pass through the air ring 8, and the air ring 8 can supply air to the honeycomb tube in the radial direction. The inner wall of the air ring 8 is surrounded by a plurality of groups of ventilation holes 81, and the outer wall of the air ring 8 is provided with an air intake column 82 that can be connected to an air source, and the air intake column 82 is provided with an air intake hole 83 connected to the ventilation hole 81.

[0036] In this embodiment, if Figure 1 As shown, an outlet 11 and an inlet 12 are respectively provided on opposite sides of the traction box 1 to facilitate connection with the traction channel, and a support plate 5 provided at the bottom of the inlet 12 side supports the honeycomb tube.

[0037] In this embodiment, if Figure 1 As shown, a blowing device for drying the moisture on the surface of the honeycomb tube is arranged on the side of the support plate 5 away from the traction box 1, so as to remove the water droplets attached to the surface of the honeycomb tube, thereby improving the safety of the product surface and subsequent operations, and cooling the honeycomb tube to improve the product quality.

[0038] In this embodiment, if Figure 1 As shown, the adjusting bracket 6 can adjust the distance between the air ring 8 and the support plate 5 and the horizontal height of the air ring 8, so as to facilitate changing the position of the air ring 8; the honeycomb tube is inserted into the air ring 8, so that the air ring 8 can radially supply air to the honeycomb tube, forming 360° blowing without dead angles, thereby improving the appearance of the product and improving the safety of subsequent traction cutting.

[0039] In this embodiment, if Figure 3 As shown, a plurality of ventilation holes 81 are arranged around the inner wall of the wind ring 8, and the air source can supply air to the ventilation holes 81 through the air inlet holes 83 of the air inlet column 82 on the outer wall, so that the air supply and air delivery are separated at the positions of the inner and outer walls to prevent the air pipe from contacting the honeycomb tube.

[0040] Embodiment 3

[0041] like Figure 3 to Figure 4 The third embodiment of the underground communication cellular tube traction device of the utility model is shown.

[0042] This embodiment is similar to the first embodiment or the second embodiment, except that the adjustment bracket 6 includes a horizontal arm 61 with one end connected to the traction box 1, an L-shaped arm 62 with one end movably connected to the other end of the horizontal arm 61, and a vertical arm 63 movably connected to the other end of the L-shaped arm 62. One end of the L-shaped arm 62 can adjust the installation position relative to the horizontal arm 61, and the vertical arm 63 can adjust the installation position relative to the other end of the L-shaped arm 62. The adjustment direction of the L-shaped arm 62 relative to the horizontal arm 61 is perpendicular to the adjustment direction of the vertical arm 63 relative to the L-shaped arm 62. The outer walls at both ends of the L-shaped arm 62 are respectively slidably connected to the inner walls of the horizontal arm 61 and the vertical arm 63, and the horizontal arm 61 and the vertical arm 63 are respectively threadedly connected with adjustment bolts 64 that can abut against the outer wall of the L-shaped arm 62. Among them, the tension clamp 7 includes a fixed claw 71 connected to the bottom of the vertical arm 63, an adjusting claw 72 rotatably connected to the fixed claw 71, and a tension bolt 73 axially rotatably connected to the fixed claw 71. The threaded portion of the tension bolt 73 is threadedly connected to the adjusting claw 72, and the outer wall of the tension bolt 73 is provided with a spring whose two ends are respectively abutted against the fixed claw 71 and the adjusting claw 72.

[0043] In this embodiment, if Figure 3 As shown, since one end of the L-shaped arm 62 can be adjusted to a mounting position relative to the horizontal arm 61, the vertical arm 63 can be adjusted to a mounting position relative to the other end of the L-shaped arm 62, and the adjustment direction of the L-shaped arm 62 relative to the horizontal arm 61 is perpendicular to the adjustment direction of the vertical arm 63 relative to the L-shaped arm 62, the spacing between the wind ring 8 and the support plate 5 and the horizontal height of the wind ring 8 can be adjusted.

[0044] In addition, in this embodiment, Figure 1As shown, a fixing plate 9 is provided at one end of the horizontal arm 61 away from the L-shaped arm 62. The cross-sectional area of ​​the fixing plate 9 is larger than the cross-sectional area of ​​the horizontal arm 61. The fixing plate 9 is fixedly connected to the traction box 1 to increase the connection strength between the horizontal arm 61 and the traction box 1.

[0045] In this embodiment, if Figure 4 As shown, the outer walls at both ends of the L-shaped arm 62 are slidably connected to the inner walls of the horizontal arm 61 and the vertical arm 63, respectively, so that the position of the L-shaped arm 62 relative to the horizontal arm 61 and the vertical arm 63 can be adjusted. The adjusting bolts 64 for adjusting the horizontal arm 61 and the vertical arm 63 are respectively abutted against the outer wall of the L-shaped arm 62, so that the position of the L-shaped arm 62 relative to the horizontal arm 61 and the vertical arm 63 can be fixed.

[0046] In this embodiment, if Figure 4 As shown, one end of the tension bolt 73 is axially rotatably connected to the fixed claw 71, and the threaded portion of the tension bolt 73 is threadedly connected to the adjusting claw 72. Since the adjusting claw 72 is rotatably connected to the fixed claw 71, the spacing between the fixed claw 71 and the adjusting claw 72 can be adjusted by screwing the tension bolt 73 to achieve control of the clamping action; the spring can give the adjusting claw 72 and the fixed claw 71 an outward elastic force, making the adjustment of the tension bolt 73 more labor-saving and convenient.

[0047] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not intended to limit the implementation methods of the utility model. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. An underground communication cellular tube traction device, comprising a traction box (1), two sets of crawlers (2) rotatably arranged in the traction box (1), and a plurality of sets of rubber blocks (3) evenly distributed on the surface of the crawlers (2), the two sets of crawlers (2) being distributed up and down, characterized in that: The rubber block (3) is provided with a groove (4) that can fit the shape of the outer wall of the honeycomb tube on the side away from the track (2), and a traction channel for traction of the honeycomb tube is formed between the grooves (4) on the upper and lower sides; the cross-sectional shape of the groove (4) is W-shaped, and the angles of the two groove corners at the bottom of the W-shaped groove (4) are 120 degrees.

2. An underground communication cellular tube traction device according to claim 1, characterized in that: A plurality of groups of rubber blocks (3) are arranged parallel to each other.

3. The underground communication cellular tube pulling device according to claim 1, characterized in that: An outlet (11) and an inlet (12) are respectively provided on opposite sides of the traction box (1), two ends of the two sets of crawlers (2) are respectively arranged between the outlet (11) and the inlet (12), and a support plate (5) is provided at the bottom of the traction box (1) on the inlet (12) side.

4. The underground communication cellular tube pulling device according to claim 3, characterized in that: The traction box (1) is provided with a blowing device on the side of the inlet (12) for drying the moisture on the surface of the honeycomb tube, and the blowing device is arranged on a side of the support plate (5) away from the traction box (1).

5. The underground communication cellular tube pulling device according to claim 4, characterized in that: The blowing device comprises an adjusting bracket (6) with one end connected to the traction box (1), an elastic clamp (7) connected to the other end of the adjusting bracket (6), and an air ring (8) detachably connected to the elastic clamp (7); the adjusting bracket (6) can adjust the distance between the air ring (8) and the support plate (5) and the horizontal height of the air ring (8); the honeycomb tube can pass through the air ring (8), and the air ring (8) can supply air radially to the honeycomb tube.

6. The underground communication cellular tube pulling device according to claim 5, characterized in that: The inner wall of the air ring (8) is surrounded by a plurality of ventilation holes (81), the outer wall of the air ring (8) is provided with an air intake column (82) that can be connected to an air source, and the air intake column (82) is provided with an air intake hole (83) that is connected to the ventilation holes (81).

7. The underground communication cellular tube pulling device according to claim 5, characterized in that: The adjustment bracket (6) comprises a horizontal arm (61) with one end connected to the traction box (1), an L-shaped arm (62) with one end movably connected to the other end of the horizontal arm (61), and a vertical arm (63) movably connected to the other end of the L-shaped arm (62); one end of the L-shaped arm (62) can be adjusted to a mounting position relative to the horizontal arm (61); the vertical arm (63) can be adjusted to a mounting position relative to the other end of the L-shaped arm (62); and the adjustment direction of the L-shaped arm (62) relative to the horizontal arm (61) is perpendicular to the adjustment direction of the vertical arm (63) relative to the L-shaped arm (62).

8. The underground communication cellular tube pulling device according to claim 7, characterized in that: The outer walls at both ends of the L-shaped arm (62) are slidably connected to the inner walls of the horizontal arm (61) and the vertical arm (63), and the horizontal arm (61) and the vertical arm (63) are respectively threadedly connected with adjustment bolts (64) that can abut against the outer walls of the L-shaped arm (62).

9. The underground communication cellular tube pulling device according to claim 7, characterized in that: The tension clamp (7) includes a fixed claw (71) connected to the bottom of the vertical arm (63), an adjusting claw (72) rotatably connected to the fixed claw (71), and a tension bolt (73) axially rotatably connected to the fixed claw (71), the threaded portion of the tension bolt (73) being threadedly connected to the adjusting claw (72), and the outer wall of the tension bolt (73) is provided with a spring whose two ends are respectively abutted against the fixed claw (71) and the adjusting claw (72).

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