Pipeline tail anchoring device for pipeline rear anchoring section type jacking and pulling
By using a segmental jacking device for pipe tail anchoring, the problem of difficult control of pullback force parameters during pipe pullback construction was solved, thus improving the stability and practicality of the pipe during the pullback process.
Patent Information
- Application Number
- CN202423230574.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing technologies, the parameters of the pullback force are difficult to control during pipeline pullback construction, making it difficult to ensure pullback stability. This can lead to pipeline stretching deformation or damage, reducing the practicality of the device.
The pipe tail anchoring device adopts a segmental top-pull type pipe anchoring device. The drill bit and connecting pipe are firmly connected by the threaded hole and the bolt. The rotational connection between the connecting pipe and the connecting seat isolates the torque. The cooperation between the anchoring top plate and the connecting seat provides axial tensile support. The clamping mechanism is adapted to different pipe diameters. The linkage mechanism of anchor cable fixing and clamping mechanism prevents pipe deformation.
It effectively isolates the torque of the drill rod, ensuring that the pipeline maintains the correct direction and posture during the pullback process, preventing tensile deformation or displacement, and improving the stability and practicality of construction.
Smart Images
Figure CN223622405U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline laying technology, and in particular to a pipeline tail anchoring device for pipeline rear anchor segment jacking. Background Technology
[0002] Pipeline burial is an engineering technique that involves laying pipelines underground to transport water from water sources to various areas of a city. By burying pipelines to transport water, the building area above ground can be reduced, and the pipelines can be effectively protected.
[0003] Traditional pipeline installation involves first determining the pipeline's location and then excavating the ground. However, this method not only causes significant soil erosion but also involves a large workload, wasting considerable time and manpower. To address these issues, existing technology uses a drill bit to excavate the soil. By controlling the drill bit's movement, a channel for the pipeline is created. After the drill bit emerges from the excavation site, one end of the pipeline is connected to it, and the drill bit is then retracted, pulling the pipeline into the cleared channel. This significantly reduces construction time. However, in practical use, friction occurs between the pipeline and the channel as the drill bit pulls the pipeline. This friction is further amplified by the pipeline's own weight, causing it to stretch and deform. Controlling the pullback force during the pipeline retraction process is difficult, making it challenging to ensure stability and potentially leading to stretching deformation or damage to the pipeline, thus reducing the device's practicality. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a pipe tail anchoring device for pipe rear anchor segment jacking, which aims to improve the existing technology where the parameters of the pullback force are difficult to control during pipe pullback construction, the pullback stability is difficult to ensure, and the pipe may be subjected to tensile deformation or damage, thus reducing the practicality of the device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pipe tail anchoring device for pipe rear anchor segment jacking, comprising a drill bit, the left end of which has multiple threaded holes, a connecting pipe on the left side of the drill bit, multiple bolts connected to the right side of the outer wall of the connecting pipe, the bolts being threadedly connected to the threaded holes, a connecting seat rotatably connected to the left side of the outer wall of the connecting pipe, a pipe on the left side of the outer wall of the connecting seat, the right end of the pipe fitting against the connecting seat, an anchoring top plate on the left side of the pipe fitting against the pipe, a hollow pipe fixedly connected to the middle of the left side of the anchoring top plate, a limiting ring fixedly connected to the left side of the outer wall of the hollow pipe, a bolt fixedly connected to the left side of the outer wall of the limiting ring, a fixing block fixedly connected to the left side of the outer wall of the connecting seat, a through hole in the middle of the fixing block, an anchor cable fixedly connected inside the through hole, the other end of the anchor cable passing through the anchoring top plate, the hollow pipe and the bolts, and a clamping mechanism on the left side of the outer wall of the anchoring top plate.
[0006] Through the above technical solution: the threaded hole and multiple bolts on the right side of the outer wall of the connecting pipe cooperate to achieve a firm connection between the drill bit and the connecting pipe. The rotational connection between the connecting pipe and the connecting seat effectively isolates the torque of the drill rod, allowing the pipeline to mainly bear the axial tensile force. The pipeline maintains a relative positional relationship with the connecting pipe through the connecting seat. As the drill bit advances and the pipeline is pulled back, the connecting seat helps the pipeline maintain the correct direction and posture. When the drill rod applies tension to the pipeline through the connecting pipe and the connecting seat, the anchor plate can withstand the reaction force from the pipeline, preventing the pipeline from undergoing tensile deformation or displacement due to excessive tension during the pullback process. The anchor cable connects the anchor plate and the connecting seat. After tightening the anchor cable, the anchor cable is pressed by rotating the bolt, so that the anchor plate and the connecting seat can clamp the pipeline, thereby providing better support for the pipeline and preventing pipeline deformation.
[0007] As a further description of the above technical solution:
[0008] The clamping mechanism includes a rotating plate rotatably connected to the right side of the outer wall of the hollow tube. The outer right side of the anchoring top plate has sliding grooves on all four sides. Clamping blocks are slidably connected to the inner walls of multiple sliding grooves. Extension rods are fixedly connected to the left side of the outer walls of multiple clamping blocks. Arc-shaped grooves are formed around the outer walls of the rotating plate, and multiple extension rods are slidably connected to their corresponding arc-shaped grooves. A spring is provided on the outer side of the hollow tube, with its left end fixedly connected to the clamping mechanism. A toothed ring is fixedly connected to the right side of the outer wall of the rotating plate, and a toothed groove is formed on the left side of the outer wall of the anchoring top plate, with the toothed ring engaging with the toothed groove.
[0009] Through the above technical solution: the clamping block slides in conjunction with the arc groove of the rotating plate via the extension rod, forming a linkage mechanism. When the rotating plate rotates, the clamping block slides in the second sliding groove through the arc groove and the extension rod, realizing the adaptable clamping of pipes with different diameters. When it is necessary to rotate the rotating plate, pull the rotating plate to the left, and then rotate the rotating plate to drive multiple clamping blocks to move. When the rotating plate is released, under the action of the spring, the rotating plate is squeezed to move towards the anchoring top plate, so that the toothed ring of the rotating plate engages with the toothed groove of the anchoring top plate, locking the rotating plate and preventing the rotating plate from moving and causing the clamping block to move.
[0010] As a further description of the above technical solution:
[0011] A water inlet hole is provided on the right side of the outer wall of the drill bit, and a drain hole is provided on all four sides of the outer wall of the drill bit. The water inlet hole and the drain hole are connected.
[0012] The above technical solution reduces the temperature of the drill bit by injecting water into the inlet hole and draining it out through the outlet hole.
[0013] As a further description of the above technical solution:
[0014] A rubber pad is fixedly connected to the left side of the outer wall of the connecting pipe, and a rubber pad is fixedly connected to the right side of the outer wall of the anchoring top plate.
[0015] The above technical solution provides protection for both ends of the pipe by rubber pad one and rubber pad two, preventing damage to both ends of the pipe from affecting the subsequent installation of other connecting parts.
[0016] As a further description of the above technical solution:
[0017] The outer wall of the connecting pipe is fixedly connected to a second limiting ring, and a limiting groove is opened in the middle of the inner wall of the connecting seat. The second limiting ring is rotatably connected to the limiting groove.
[0018] Through the above technical solution, the rotational connection between the limiting ring II and the limiting groove provides precise and stable rotational support for the connecting pipe.
[0019] As a further description of the above technical solution:
[0020] An information sign is provided on the front side of the outer wall of the connecting pipe. Screws are threaded around the outer wall of the information sign, and the information sign is threaded to the connecting pipe through the screws.
[0021] Through the above technical solution, the information board is used to label the relevant parameters and usage methods of the device, providing step-by-step guidance for staff.
[0022] As a further description of the above technical solution:
[0023] Multiple anti-slip strips are fixedly connected to the outer side of the rotating plate, and the multiple anti-slip strips are arranged in a ring with the center of the rotating plate as the center.
[0024] Through the above technical solution: the anti-slip strip facilitates the rotation of the rotating plate, increases the friction between the hand and the rotating plate, and prevents the hand from slipping.
[0025] As a further description of the above technical solution:
[0026] Each of the multiple clamping blocks has a slider fixedly connected to its outer side, and each of the multiple sliding grooves has a first sliding groove on its inner wall. The multiple sliders are slidably connected to the corresponding first sliding groove.
[0027] Through the above technical solution, the slider and the groove can restrict the left and right movement of the clamping block, preventing the left and right movement of the clamping block from affecting the stability of the clamping mechanism.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, the drill bit and the connecting pipe are firmly connected by the threaded hole and the bolt. The torque of the drill rod is effectively isolated by the rotational connection between the connecting pipe and the connecting seat. The connecting seat can help the pipeline maintain the correct direction and posture. The anchor plate can withstand the reaction force from the pipeline and prevent the pipeline from being stretched or displaced due to excessive tension during the pullback process. After tightening the anchor cable, the anchor cable is pressed by rotating the bolt, so that the anchor plate and the connecting seat can clamp the pipeline, thereby providing better support for the pipeline and preventing pipeline deformation.
[0030] 2. In this utility model, the rotating plate drives the clamping blocks to slide within the second slide groove, thereby achieving adaptive clamping of pipes with different diameters. When it is necessary to rotate the rotating plate, the rotating plate is pulled to the left, and then the rotating plate is rotated to drive multiple clamping blocks to move, thereby supporting the pipe from the inner wall of the pipe and fixing the pipe. When the rotating plate is released, the rotating plate is squeezed towards the anchoring top plate under the action of the spring, so that the toothed ring of the rotating plate engages with the toothed groove of the anchoring top plate, locking the rotating plate. Attached Figure Description
[0031] Figure 1 This is a perspective view of a pipe tail anchoring device for pipe rear anchor segment jacking proposed in this utility model.
[0032] Figure 2 This is a partial structural breakdown diagram of a pipe tail anchoring device for segmental jacking of pipes proposed in this utility model.
[0033] Figure 3 This is a partial structural diagram of a pipe tail anchoring device for segmental jacking of pipes proposed in this utility model.
[0034] Figure 4 This is a schematic diagram of the clamping mechanism of a pipe tail anchoring device for pipe rear anchor segment jacking proposed in this utility model.
[0035] Figure 5 A schematic diagram of a drill bit for a pipe tail anchoring device for pipe rear anchor segment jacking proposed in this utility model;
[0036] Figure 6 This is a schematic diagram of the anchoring top plate of a pipe tail anchoring device for pipe rear anchoring segment jacking proposed in this utility model.
[0037] Legend:
[0038] 1. Drill bit; 2. Clamping mechanism; 201. Rotating plate; 202. Slide groove II; 203. Clamping block; 204. Extension rod; 205. Arc groove; 206. Spring; 207. Toothed ring; 208. Toothed groove; 3. Threaded hole; 4. Connecting pipe; 5. Bolt I; 6. Connecting seat; 7. Pipe; 8. Anchoring top plate; 9. Hollow pipe; 10. Limiting ring I; 11. Bolt II; 12. Fixing block; 13. Through hole; 14. Anchor cable; 15. Water inlet hole; 16. Drain hole; 17. Rubber pad I; 18. Rubber pad II; 19. Limiting ring II; 20. Limiting groove; 21. Information board; 22. Screw; 23. Anti-slip strip; 24. Slider; 25. Slide groove I. Detailed Implementation
[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0040] Reference Figure 1 , Figure 2 and Figure 3This utility model provides an embodiment of a pipe tail anchoring device for segmental jacking and pulling, comprising a drill bit 1, which is a key component that directly acts on the formation for drilling operations. The left end of the drill bit 1 has multiple threaded holes 3, and a connecting pipe 4 is provided on the left side of the drill bit 1. Multiple bolts 5 are threadedly connected to the right side of the outer wall of the connecting pipe 4, and the bolts 5 are threadedly connected to the threaded holes 3. The multiple threaded holes 3 provide interfaces for connection with the connecting pipe 4. A connecting seat 6 is rotatably connected to the left side of the outer wall of the connecting pipe 4, and a pipe 7 is provided on the left side of the outer wall of the connecting seat 6. During directional drilling, the connecting pipe 4 needs to transmit the rotational power of the drilling rig, but if... This rotational force is then transmitted to the connecting seat 6 and the subsequent pipe 7, which could cause damage to the pipe 7 due to torsion. This rotational connection method allows the connecting pipe 4 to rotate independently while transmitting the propulsive force to the pipe 7, effectively isolating the rotational torque and preventing it from adversely affecting the pipe 7. The right end of the pipe 7 is in close contact with the connecting seat 6, ensuring effective force transmission. An anchoring plate 8 is installed on the left side of the pipe 7, and the anchoring plate 8 is in close contact with the pipe 7, providing strong rear-end anchoring support for the pipe 7. A hollow pipe 9 is fixedly connected to the middle of the left side of the anchoring plate 8. Hollow tube 9 serves as a channel for subsequent anchor cables 14 and provides an installation base for other components. A limiting ring 10 is fixedly connected to the left side of the outer wall of hollow tube 9. A bolt 11 is fixedly connected to the left side of the outer wall of the limiting ring 10. Tightening the bolt 11 applies preload, securing the anchor cable 14. A fixing block 12 is fixedly connected to the left side of the outer wall of connecting seat 6. The fixing block 12 provides installation for the anchor cable 14. A through hole 13 is provided in the middle of the fixing block 12. The right end of the anchor cable 14 passes through the through hole 13, ensuring a secure connection between the right end of the anchor cable 14 and the fixing block 12. The anchor cable 14 is fixedly connected inside the through hole 13, and the other end of the anchor cable 14 passes through the anchor top. Plate 8, hollow tube 9, limiting ring 10 and bolt 2 11, and clamping mechanism 2 are provided on the left side of the outer wall of anchoring top plate 8; water inlet hole 15 is opened on the right side of the outer wall of drill bit 1, and drain hole 16 is opened on all four sides of the outer wall of drill bit 1. Water inlet hole 15 and drain hole 16 are connected. During construction, water is injected into water inlet hole 15 and discharged from drain hole 16, which can reduce the temperature of drill bit 1; rubber pad 17 is fixedly connected to the left side of the outer wall of connecting pipe 4, and rubber pad 2 18 is fixedly connected to the right side of the outer wall of anchoring top plate 8. Rubber pad 17 and rubber pad 2 18 provide protection for both ends of pipe 7 to prevent damage to both ends of pipe 7 from affecting the subsequent installation of other connecting parts;
[0041] Specifically, multiple threaded holes 3 on the left end of drill bit 1 cooperate with multiple bolts 5 threaded on the right side of the outer wall of connecting pipe 4, achieving a firm connection between drill bit 1 and connecting pipe 4. Through the rotational connection between connecting pipe 4 and connecting seat 6, the torque of the drill rod is effectively isolated, allowing pipe 7 to primarily bear axial tensile force. Pipe 7 maintains a relative positional relationship with connecting pipe 4 via connecting seat 6. Furthermore, as drill bit 1 advances and pipe 7 retracts, connecting seat 6 helps pipe 7 maintain the correct direction and posture. When the drill rod applies tensile force to pipe 7 through connecting pipe 4 and connecting seat 6, anchoring top plate 8 can withstand the reaction force from pipe 7. The tight fit between anchoring top plate 8 and pipe 7, and sufficient connection... The contact area ensures effective force transmission, preventing the pipe 7 from tensile deformation or displacement due to excessive tension during pullback. The anchor plate 8 and the connecting seat 6 are connected by using anchor cable 14. After tightening the anchor cable 14, the anchor cable 14 is pressed by rotating bolt 11, so that the anchor plate 8 and the connecting seat 6 can clamp the pipe 7, thereby providing better support for the pipe 7 and preventing deformation. During construction, mud or other fluids are injected into the drill bit 1 through the water inlet hole 15. The mud plays a role in cooling the drill bit 1, carrying drill cuttings, and stabilizing the hole wall during directional drilling. Rubber pad 17 and rubber pad 18 protect the pipe 7 and prevent wear at both ends of the pipe 7, which would affect the subsequent installation of other components.
[0042] Reference Figure 4 and Figure 6The clamping mechanism 2 includes a rotating plate 201, which is rotatably connected to the right side of the outer wall of the hollow tube 9. This rotatable connection ensures that the rotating plate 201 can rotate freely within a certain range, providing a dynamic adjustment basis for subsequent clamping actions. Slide grooves 202 are provided around the right side of the outer wall of the anchoring top plate 8. Clamping blocks 203 are slidably connected to the inner walls of multiple slide grooves 202. The slide grooves 202 provide linear sliding tracks for the clamping blocks 203. The left side of the outer walls of the multiple clamping blocks 203... Each of the rotating plate 201 is fixedly connected with an extension rod 204. Arc-shaped grooves 205 are formed around the outer wall of the rotating plate 201. Multiple extension rods 204 are slidably connected to their corresponding arc-shaped grooves 205. The slidable connection between the extension rods 204 and the arc-shaped grooves 205 establishes a transmission link between the rotating plate 201 and the clamping block 203. When the rotating plate 201 rotates, the arc-shaped grooves 205, through their sliding engagement with the extension rods 204, convert the rotational motion into linear reciprocating motion of the clamping block 203 along the second sliding groove 202. The movement distance of the clamping block 203 is precisely controlled to achieve flexible and precise clamping of pipes of different diameters. A spring 206 is provided on the outside of the hollow pipe 9. The elastic force of the spring 206 compresses the rotating plate 201, causing the rotating plate 201 to engage with the anchoring top plate 8. The left end of the spring 206 is fixedly connected to the limiting ring 10. A toothed ring 207 is fixedly connected to the right side of the outer wall of the rotating plate 201. A toothed groove 208 is provided on the left side of the outer wall of the anchoring top plate 8. The toothed ring 207 engages with the toothed groove 208. The toothed ring 207 engages with the toothed groove 208 to fix the rotating plate 201 after clamping the pipe 7, preventing the rotating plate 201 from rotating; the outer sides of the multiple clamping blocks 203 are all fixedly connected with sliders 24, and the inner walls of the multiple sliding grooves 202 are all provided with sliding grooves 25. The multiple sliders 24 are slidably connected to the corresponding sliding grooves 25. The sliders 24 and the sliding grooves 25 can restrict the left and right movement of the clamping blocks 203, preventing the left and right movement of the clamping blocks 203 from affecting the stability of the clamping mechanism 2;
[0043] Specifically, the clamping block 203 slides in conjunction with the arc-shaped groove 205 of the rotating plate 201 via the extension rod 204, forming a linkage mechanism. When the rotating plate 201 rotates, the clamping block 203 slides within the sliding groove 202 via the arc-shaped groove 205 and the extension rod 204, achieving adaptive clamping for pipes 7 of different diameters. When it is necessary to rotate the rotating plate 201, the rotating plate 201 is pulled to the left, and then rotating the rotating plate 201 drives multiple clamping blocks 203 to move, thereby clamping them from the inside of the pipe 7. The wall supports the pipe 7 and fixes the pipe 7. After fixing, the rotating plate 201 is released. Under the action of the spring 206, the rotating plate 201 is squeezed to move towards the anchoring top plate 8, so that the toothed ring 207 of the rotating plate 201 engages with the toothed groove 208 of the anchoring top plate 8, locking the rotating plate 201 and preventing the rotating plate 201 from moving and causing the clamping block 203 to move. The slider 24 cooperates with the slide groove 25 to restrict the left and right movement of the clamping block 203 and prevent the clamping block 203 from loosening.
[0044] Reference Figure 1 , Figure 2 and Figure 5 A limiting ring 19 is fixedly connected to the outer wall of the connecting pipe 4. A limiting groove 20 is opened in the middle of the inner wall of the connecting seat 6. The limiting ring 19 is rotatably connected to the limiting groove 20. The rotatable connection between the limiting ring 19 and the limiting groove 20 provides precise and stable rotation support for the connecting pipe 4. An information plate 21 is provided on the front side of the outer wall of the connecting pipe 4. Screws 22 are threaded around the outer wall of the information plate 21. The information plate 21 is threaded to the connecting pipe 4 through the screws 22. The information plate 21 carries a lot of key information. Multiple anti-slip strips 23 are fixedly connected to the outer side of the rotating plate 201. The anti-slip strips 23 increase the friction between the hand and the rotating plate 201 and prevent the hand from slipping when rotating the rotating plate 201. The multiple anti-slip strips 23 are arranged in a ring with the center of the rotating plate 201 as the center.
[0045] Specifically, the limiting ring 19 and the limiting groove 20 cooperate to provide stable rotation support for the connecting pipe 4 and accurately limit the rotation axis and trajectory; the information plate 21 is used to mark the relevant parameters and usage methods of the device, providing step guidance for the staff; the anti-slip strip 23 facilitates the rotation of the rotating plate 201, increases the friction between the hand and the rotating plate 201, and prevents the hand from slipping.
[0046] Working principle: Multiple threaded holes 3 on the left end of drill bit 1 engage with multiple bolts 5 threaded on the right side of the outer wall of connecting pipe 4, achieving a firm connection between drill bit 1 and connecting pipe 4. The rotational connection between connecting pipe 4 and connecting seat 6 effectively isolates the torque of the drill rod, allowing pipe 7 to primarily bear axial tension. Pipe 7 maintains a relative positional relationship with connecting pipe 4 via connecting seat 6. As drill bit 1 advances and pipe 7 retracts, connecting seat 6 helps pipe 7 maintain the correct direction and posture. When the drill rod applies tension to pipe 7 through connecting pipe 4 and connecting seat 6, anchor plate 8 can withstand the reaction force from pipe 7. The tight fit and sufficient contact area between anchor plate 8 and pipe 7 ensure effective force transmission, preventing pipe 7 from tensile deformation or displacement due to excessive tension during retraction. Anchor plate 8 and connecting seat 6 are connected using anchor cable 14. After tightening anchor cable 14, bolt 21 is rotated to press anchor cable 14 into place. This allows the anchor plate 8 and the connecting seat 6 to clamp the pipe 7, thus providing better support for the pipe 7 and preventing deformation. Furthermore, by rotating the rotating plate 201, and through the arc groove 205 and the extension rod 204, the clamping blocks 203 slide within the sliding groove 202, achieving adaptable clamping for pipes 7 of different diameters. When it is necessary to rotate the rotating plate 201, it is pulled to the left, and then rotating the rotating plate 201 drives multiple clamping blocks 203 to move, thereby clamping the pipe 7... The inner wall supports the pipe 7 and fixes the pipe 7. After fixing, the rotating plate 201 is released. Under the action of the spring 206, the rotating plate 201 is squeezed to move towards the anchoring top plate 8, so that the toothed ring 207 of the rotating plate 201 engages with the toothed groove 208 of the anchoring top plate 8, locking the rotating plate 201 and preventing the rotating plate 201 from moving and causing the clamping block 203 to move. The slider 24 cooperates with the slide groove 25 to restrict the left and right movement of the clamping block 203 and prevent the clamping block 203 from loosening.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A segmental jacking device for pipe tail anchoring, comprising a drill bit (1), characterized in that: The drill bit (1) has multiple threaded holes (3) at its left end. A connecting pipe (4) is provided on the left side of the drill bit (1). Multiple bolts (5) are threadedly connected to the right side of the outer wall of the connecting pipe (4). The bolts (5) are threadedly connected to the threaded holes (3). A connecting seat (6) is rotatably connected to the left side of the outer wall of the connecting pipe (4). A pipe (7) is provided on the left side of the outer wall of the connecting seat (6). The right end of the pipe (7) is fitted with the connecting seat (6). An anchoring plate (8) is provided on the left side of the pipe (7). The anchoring plate (8) is fitted with the pipe (7). A hollow tube (9) is fixedly connected to the middle of the left side of the connecting seat (6). A limiting ring (10) is fixedly connected to the left side of the outer wall of the hollow tube (9). A bolt (11) is fixedly connected to the left side of the outer wall of the limiting ring (10). A fixing block (12) is fixedly connected to the left side of the outer wall of the connecting seat (6). A through hole (13) is opened in the middle of the fixing block (12). An anchor cable (14) is fixedly connected inside the through hole (13). The other end of the anchor cable (14) passes through the anchoring top plate (8), the hollow tube (9), (10) and the bolt (11). A clamping mechanism (2) is provided on the left side of the outer wall of the anchoring top plate (8).
2. The pipe tail anchoring device for segmental jacking and pulling of a pipe as described in claim 1, characterized in that: The clamping mechanism (2) includes a rotating plate (201), which is rotatably connected to the right side of the outer wall of the hollow tube (9). Slide grooves (202) are provided around the right side of the outer wall of the anchoring top plate (8). Clamping blocks (203) are slidably connected to the inner walls of multiple slide grooves (202). Extension rods (204) are fixedly connected to the left side of the outer walls of multiple clamping blocks (203). Arc-shaped grooves are provided around the outer walls of the rotating plate (201). (205), multiple extension rods (204) are slidably connected to the corresponding arc grooves (205), a spring (206) is provided on the outside of the hollow tube (9), the left end of the spring (206) is fixedly connected to (10), a toothed ring (207) is fixedly connected to the right side of the outer wall of the rotating plate (201), and a toothed groove (208) is provided on the left side of the outer wall of the anchoring top plate (8), and the toothed ring (207) engages with the toothed groove (208).
3. The pipe tail anchoring device for segmental jacking and pulling of a pipe as described in claim 1, characterized in that: A water inlet hole (15) is provided on the right side of the outer wall of the drill bit (1), and a drain hole (16) is provided on all four sides of the outer wall of the drill bit (1). The water inlet hole (15) and the drain hole (16) are connected.
4. The pipe tail anchoring device for segmental jacking and pulling of a pipe as described in claim 1, characterized in that: A rubber pad (17) is fixedly connected to the left side of the outer wall of the connecting pipe (4), and a rubber pad (18) is fixedly connected to the right side of the outer wall of the anchoring top plate (8).
5. The pipe tail anchoring device for segmental jacking and pulling of a pipe as described in claim 1, characterized in that: The outer wall of the connecting pipe (4) is fixedly connected to a limiting ring two (19), and a limiting groove (20) is opened in the middle of the inner wall of the connecting seat (6). The limiting ring two (19) is rotatably connected to the limiting groove (20).
6. The pipe tail anchoring device for segmental jacking and pulling of a pipe as described in claim 1, characterized in that: An information plate (21) is provided on the front side of the outer wall of the connecting pipe (4). Screws (22) are threaded around the outer wall of the information plate (21). The information plate (21) is threaded to the connecting pipe (4) through the screws (22).
7. The pipe tail anchoring device for segmental jacking and pulling of a pipe as described in claim 2, characterized in that: Multiple anti-slip strips (23) are fixedly connected to the outer side of the rotating plate (201), and the multiple anti-slip strips (23) are arranged in a ring with the center of the rotating plate (201) as the center.
8. The pipe tail anchoring device for segmental jacking and pulling of a pipe as described in claim 2, characterized in that: A slider (24) is fixedly connected to the outer side of each of the multiple clamping blocks (203), and a first slide groove (25) is opened on the inner wall of each of the multiple second slide grooves (202). The multiple sliders (24) are slidably connected to the corresponding first slide groove (25).