Simple drilling and pulling device for small-diameter pipe of soil subgrade

Abstract

This utility model relates to the field of pipeline laying technology, specifically to a simple drilling and traction device for small-diameter pipes in soil subgrades. A connecting seat is fixedly connected to the upper surface of a movable base plate, and one end of a support plate is rotatably connected to the connecting seat. An adjustment mechanism is mounted on the movable base plate and rotatably connected to the lower surface of the support plate. The traction mechanism includes a movable base, a mounting base, grippers, gears, hydraulic rods, and a push rod. The movable base is slidably connected to the support plate, the output end of the push rod is connected to the movable base, the top of the movable base is connected to the mounting base, and a pair of grippers are rotatably connected to the top of the mounting base. Gears are connected to the tails of the grippers, and the two gears mesh. A pair of hydraulic rods are rotatably connected to the side of the mounting base near the movable base, and the output end of the hydraulic rods is rotatably connected to the grippers. This device achieves automatic cyclic traction of the drill rod, improving upon the problem of the existing technology where the gripper needs to be manually adjusted repeatedly, resulting in complex operation and greatly improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipeline laying technology, specifically to a simple drilling and traction device for small-diameter pipes in soil subgrade. Background Technology

[0002] In road construction and related underground infrastructure laying projects, it is necessary to bury small-diameter pipes in the soil subgrade, such as PVC pipes for drainage and corrugated pipes for communication line laying. Drilling to bury pipes is a common construction method. The specific operation is to use a drill rod to hold the drill bit, and rotate the drill rod to make the drill bit drill a channel underground. When the drill bit emerges from the ground, one end of the pipe is fixed to the drill bit. Then, by pulling the drill rod, the drill bit is moved in the opposite direction, thereby smoothly pulling the pipe into the drilled channel, realizing the burial of small-diameter pipes in the soil subgrade.

[0003] Currently, the existing traction devices for drilling and burying small-diameter pipes in soil subgrades have a relatively simple structure, consisting of a simple clamping seat. In actual use, the clamping seat is tightly clamped to the drill rod using bolts, and then the drill rod is moved by pushing or pulling the clamping seat with external force, thus achieving the traction operation of the drill rod. However, this existing traction device has many drawbacks. Since the distance that the clamping seat can move each time is limited, after the clamping seat has moved a certain distance, it is necessary to unscrew the bolts, move it back to the starting position, and fix the drill rod again. This repeated operation makes the whole process extremely cumbersome, not only consuming a lot of time and manpower, but also seriously affecting construction efficiency. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to overcome the defects in the prior art, thereby providing a simple drilling and traction device for small-diameter pipes in soil subgrade.

[0005] A simple drilling and traction device for small-diameter pipes in soil subgrade includes a movable base plate, a traction mechanism, an adjustment mechanism, a connecting seat, and a support plate.

[0006] A pair of connecting seats are fixedly connected to the upper surface of the movable base plate, one end of the support plate is rotatably connected to the connecting seats, and the adjustment mechanism is set on the movable base plate and is rotatably connected to the lower surface of the support plate.

[0007] The traction mechanism includes a movable seat, a mounting seat, grippers, gears, hydraulic rods, and push rod one. The movable seat is slidably connected to the support plate. The output end of push rod one is connected to the movable seat. The top of the movable seat is connected to the mounting seat. A pair of grippers are rotatably connected to the top of the mounting seat. Gears are connected to the tails of the grippers. The two gears are meshed together. A pair of hydraulic rods are rotatably connected to the side of the mounting seat near the movable seat. The output end of the hydraulic rods is rotatably connected to the grippers.

[0008] Furthermore, the adjustment mechanism includes a second push rod, a first rotating seat, a connecting rod, and a second rotating seat;

[0009] The moving base plate is provided with a sliding groove, a rotating seat one is slidably connected to the sliding groove, one end of a connecting rod is rotatably connected to the rotating seat one, the other end of the connecting rod is rotatably connected to the rotating seat two, the rotating seat two is fixedly connected to the support plate, and the push rod two is fixedly connected to the moving base plate, and the output end of the push rod two is connected to the rotating seat one.

[0010] Furthermore, the support plate is provided with a sliding groove, and guide grooves are provided on the inner walls on both sides of the sliding groove. Rollers are provided at the bottom of the inner wall of the sliding groove. Guide blocks are provided on both sides of the movable seat. The movable seat is slidably connected to the sliding groove, and the guide blocks are slidably connected to the guide groove. There are push rod mounting holes on the support plate, and push rod 1 is set in the push rod mounting holes.

[0011] Furthermore, the device also includes a support assembly;

[0012] The support assembly includes a hollow sleeve, a threaded rod, a rotating sleeve, and an arc-shaped plate. One end of the hollow sleeve is fixedly connected to the support plate, and the other end of the hollow sleeve is rotatably connected to the rotating sleeve. The inner wall of the rotating sleeve is threaded. The threaded rod is threadedly connected to the rotating sleeve and extends to the inner wall of the hollow sleeve. Limiting blocks are provided on both sides of the threaded rod. The limiting blocks are slidably connected to the limiting grooves on the inner wall of the hollow sleeve. The arc-shaped plate is fixedly connected to the threaded rod.

[0013] Furthermore, the upper surface of the arc-shaped plate is provided with multiple ball bearings.

[0014] Furthermore, the device also includes a positioning component;

[0015] The positioning assembly includes a positioning plate, a lead screw, a tapered foot, and a fixing ring; multiple positioning plates are provided on the side of the movable base plate, a lead screw is threadedly connected to the positioning plate, a tapered foot is fixedly connected to the bottom end of the lead screw, and a fixing ring is fixedly connected to the outer wall of the lead screw.

[0016] Furthermore, a drag plate is provided on one side of the movable base plate, and a pre-drilled hole is provided on the drag plate.

[0017] Furthermore, multiple rubber pads are evenly arranged on the clamping surface of the gripper.

[0018] Furthermore, an anti-slip strip is provided between two adjacent rubber pads.

[0019] Furthermore, multiple auxiliary wheels are provided on the outer wall of the gripper.

[0020] This utility model's technical solution utilizes the cooperation of a hydraulic rod, grippers, and gears. The hydraulic rod extends to drive the front grippers to rotate, and the gears mesh to drive the rear grippers to simultaneously clamp the drill rod. Then, a push rod engages with the moving seat and mounting seat to push the drill rod to move. When the moving seat moves to its limit position, the hydraulic rod and push rod retract to return to their original positions, repeating the clamping and pushing actions. In this way, automatic cyclic traction of the drill rod is achieved, improving upon the problem of the existing technology where the clamping seat needs to be manually adjusted repeatedly, resulting in complex operation and greatly improving work efficiency. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A three-dimensional diagram of a simple drilling and traction device for small-diameter pipes in soil roadbeds;

[0023] Figure 2 A front view of a simple drilling and traction device for small-diameter pipes in soil roadbeds;

[0024] Figure 3 A partial structural breakdown diagram of a simple drilling and traction device for small-diameter pipes in soil roadbeds;

[0025] Figure 4 A cross-sectional view of the hollow sleeve of a simple drilling and traction device for small-diameter pipes in soil subgrade.

[0026] Figure 5 A schematic diagram of the positioning components of a simple drilling and traction device for small-diameter pipes in soil subgrade.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Movable base plate; 2. Traction mechanism; 201. Movable seat; 202. Slide groove; 203. Mounting seat; 204. Gripper; 205. Gear; 206. Hydraulic rod; 207. Push rod one; 3. Adjustment mechanism; 301. Push rod two; 302. Slide groove; 303. Rotating seat one; 304. Connecting rod; 305. Rotating seat two; 4. Connecting seat; 5. Support plate; 6. Support assembly; 601. Empty 602. Core sleeve; 603. Threaded rod; 604. Limiting block; 605. Limiting groove; 606. Rotating sleeve; 607. Arc plate; 608. Ball bearing; 709. Positioning assembly; 7001. Positioning plate; 701. Lead screw; 702. Tapered foot; 703. Fixing ring; 704. Dragging plate; 9. Reserved hole; 10. Rubber pad; 11. Anti-slip strip; 12. Auxiliary wheel; 13. Roller; 14. Guide block; 15. Guide groove. Detailed Implementation

[0029] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0033] Please see Figures 1 to 5A simple drilling and traction device for small-diameter pipes in soil subgrade includes a movable base plate 1, a traction mechanism 2, an adjustment mechanism 3, a connecting seat 4, and a support plate 5.

[0034] A pair of connecting seats 4 are fixedly connected to the upper surface of the movable base plate 1. One end of the support plate 5 is rotatably connected to the connecting seats 4. The adjustment mechanism 3 is set on the movable base plate 1 and is rotatably connected to the lower surface of the support plate 5.

[0035] The movable base plate 1 serves as the basic load-bearing component of the entire device, providing an installation and support platform for other components. The movable base plate 1 is used to rotate and connect with the support plate 5 to adjust the angle of the support plate 5 relative to the movable base plate 1. The support plate 5 provides an installation plane for the traction mechanism 2 and the support assembly 6, and can also change its own angle through rotational connection with the connecting seat 4. The movable base plate 1 is equipped with an adjustment mechanism 3 to adjust the tilt angle of the support plate 5, thereby adjusting the traction angle of the traction mechanism 2. The support assembly 6 on the top of the support plate 5 provides support for the drill rod, ensuring the stability of the drill rod during the traction process.

[0036] The traction mechanism 2 includes a movable seat 201, a mounting seat 203, grippers 204, gears 205, hydraulic rods 206, and push rod 207. The movable seat 201 is slidably connected to the support plate 5. The output end of the push rod 207 is connected to the movable seat 201. The top of the movable seat 201 is connected to the mounting seat 203. A pair of grippers 204 are rotatably connected to the top of the mounting seat 203. Gears 205 are connected to the tail of the grippers 204. The two gears 205 are meshed together. A pair of hydraulic rods 206 are rotatably connected to the side of the mounting seat 203 near the movable seat 201. The output end of the hydraulic rods 206 is rotatably connected to the grippers 204. The support plate 5 is provided with a sliding groove 202, and guide grooves 15 are provided on the inner walls on both sides of the sliding groove 202. Rollers 13 are provided at the bottom of the inner wall of the sliding groove 202. Guide blocks 14 are provided on both sides of the movable seat 201. The movable seat 201 is slidably connected to the sliding groove 202, and the guide blocks 14 are slidably connected to the guide grooves 15. The support plate 5 has push rod mounting holes, and push rod 207 is set in the push rod mounting holes.

[0037] The groove 202 on the top of the support plate 5 provides a sliding track for the movable seat 201, limiting its direction of movement and ensuring the linearity of the traction process. The movable seat 201 slides in the groove 202 to achieve the traction movement of the drill rod. The mounting seat 203 fixedly connected to the top of the movable seat 201 is used to install the chuck 204 and related transmission components, providing a support structure for the rotation of the chuck 204 and the clamping of the drill rod. The opening and closing action of the chuck 204 is achieved by the meshing of two gears 205, thereby realizing the gripping and release of the drill rod. The hydraulic rod 206 rotatably connected to the mounting seat 203 serves as a driving component, pushing the chuck 204 to rotate around its connection point with the mounting seat 203 through telescopic action, thereby realizing the opening and closing of the chuck 204. The top end of the hydraulic rod 206 is rotatably connected to the front chuck 204. The push rod 207 on the inner wall of the support plate 5 provides a horizontal pushing force for the movable seat 201 and the mounting seat 203, realizing the traction movement of the drill rod.

[0038] The guide blocks 14 on both sides of the movable seat 201 are slidably connected to the guide grooves 15 opened on the inner wall of the slide 202. The guide blocks 14 and the guide grooves 15 cooperate to further ensure the stability and straightness of the movable seat 201 in the slide 202. The multiple rollers 13 rotatably connected to the bottom of the inner wall of the slide 202 can reduce the friction between the movable seat 201 and the bottom of the inner wall of the slide 202, making the movement of the movable seat 201 smoother.

[0039] The adjustment mechanism 3 includes a second push rod 301, a first rotating seat 303, a connecting rod 304, and a second rotating seat 305;

[0040] The moving base plate 1 is provided with a sliding groove 302, a rotating seat 303 is slidably connected to the sliding groove 302, one end of the connecting rod 304 is rotatably connected to the rotating seat 303, the other end of the connecting rod 304 is rotatably connected to the rotating seat 305, the rotating seat 305 is fixedly connected to the support plate 5, and the push rod 301 is fixedly connected to the moving base plate 1, and the output end of the push rod 301 is connected to the rotating seat 303.

[0041] The sliding groove 302 on the movable base plate 1 provides a specific sliding trajectory for the rotating seat 303. The rotating seat 303 slides in the sliding groove 302 to achieve subsequent angle adjustment. The connecting rod 304 converts the sliding of the rotating seat 303 into a force on the support plate 5. The rotating seat 305 rotatably connected to the connecting rod 304 is used to connect the connecting rod 304 and the support plate 5 and transmit the force from the connecting rod 304.

[0042] Specifically, the components of the adjustment mechanism 3 work closely together to flexibly adjust the angle of the support plate 5 to adapt to the traction requirements of drill rods at different angles. The push rod 301 is fixed at the top center of the movable base plate 1, serving as a power output component. When activated, it pushes the rotating seat 303 to slide within the sliding groove 302. The sliding groove 302 provides a sliding track for the rotating seat 303, limiting its direction of movement and ensuring the stability of the adjustment process. As the rotating seat 303 slides within the sliding groove 302, it drives the connecting rod 304 to move. The connecting rod 304 acts as a force transmitter and converter; when the connecting rod 304 is under force, it transmits the force to the rotating seat 305, causing the support plate 5 to rotate around its connection point with the connecting seat 4, thus adjusting the angle. Through the coordinated work of these components, the adjustment mechanism 3 can flexibly change the inclination of the support plate 5 according to the actual drilling angle, allowing the traction mechanism 2 mounted on the support plate 5 to better adapt to drill rods at different angles, improving the versatility and efficiency of the device.

[0043] The device also includes a support component 6;

[0044] The support assembly includes a hollow sleeve 601, a threaded rod 602, a rotating sleeve 605, and an arc-shaped plate 606. One end of the hollow sleeve 601 is fixedly connected to the support plate 5, and the other end of the hollow sleeve 601 is rotatably connected to the rotating sleeve 605. The inner wall of the rotating sleeve 605 is threaded. The threaded rod 602 is threadedly connected to the rotating sleeve 605 and extends to the inner wall of the hollow sleeve 601. Limiting blocks 603 are provided on both sides of the threaded rod 602. The limiting blocks 603 are slidably connected to the limiting grooves 604 on the inner wall of the hollow sleeve 601. The arc-shaped plate 606 is fixedly connected to the threaded rod 602. A plurality of ball bearings 607 are provided on the upper surface of the arc-shaped plate 606.

[0045] Two hollow sleeves 601 provide sliding guide space for the threaded rod 602, which can slide up and down within the hollow sleeves 601 to adjust the height of its top connecting component, thereby adapting to the support requirements of drill pipes of different heights. Limiting blocks 603 on the two threaded rods 602 cooperate with limiting grooves 604 on the inner wall of the hollow sleeves 601 to restrict the rotation of the threaded rods 602, ensuring they can only slide up and down within the hollow sleeves 601. This sliding connection effectively constrains the movement trajectory of the threaded rods 602. A rotating sleeve 605 rotatably connected to the hollow sleeves 601 further enhances the control. The rotating sleeve 605 is connected to the threaded rod 602 by threaded connection. Using the principle of threaded transmission, the rotation of the rotating sleeve 605 is converted into the up and down linear motion of the threaded rod 602. The top of both threaded rods 602 is fixedly connected to the arc plate 606 to provide a support surface for the drill rod. Multiple balls 607 set on the top of the two arc plates 606 reduce the friction when the drill rod slides on the arc plate 606, making the drill rod move more smoothly. The right side of the outer wall of the movable base plate 1 is fixedly connected to the drag plate 8, which provides a component for connecting external dragging equipment. The outer wall of the drag plate 8 has a reserved hole 9 in the middle.

[0046] Specifically, when the support component 6 is working, it utilizes the threaded transmission principle and limiting structure to effectively support the drill rod. Because the limiting block 603 and the limiting groove 604 are slidably connected, the rotation of the threaded rod 602 is restricted, allowing only up-and-down sliding. When the rotating sleeve 605 is rotated, based on the threaded transmission, the threaded engagement between the inner wall of the rotating sleeve 605 and the outer wall of the threaded rod 602 causes the threaded rod 602 to slide up and down within the hollow sleeve 601, thereby adjusting the height of the arc plate 606. This allows for flexible support based on the actual position and requirements of the drill rod. Multiple ball bearings 607 at the top of the arc plate 606 convert sliding friction into rolling friction during the drill rod's sliding process, greatly reducing the friction between the drill rod and the arc plate 606, making the drill rod move more smoothly. The drag plate 8 and its pre-drilled hole 9 on the right side of the outer wall of the movable base plate 1 facilitate the connection of a dragging device via external tools, making it convenient to move the entire device.

[0047] The device also includes a positioning component 7, which is used to fix the position of the movable base plate 1 on the soil subgrade, preventing displacement of the device during operation.

[0048] The positioning component 7 includes a positioning plate 701, a lead screw 702, a tapered foot 703, and a fixing ring 704; multiple positioning plates 701 are provided on the side of the movable base plate 1, the lead screw 702 is threaded onto the positioning plate 701, the tapered foot 703 is fixedly connected to the bottom end of the lead screw 702, and the fixing ring 704 is fixedly connected to the outer wall of the lead screw 702; multiple rubber pads 10 are evenly arranged on the clamping surface of the gripper 204; an anti-slip strip 11 is also provided between two adjacent rubber pads 10; multiple auxiliary wheels 12 are provided on the outer wall of the gripper 204.

[0049] Multiple positioning plates 701 are fixedly connected to the outer walls of the movable base plate 1, ensuring that the positioning components 7 are evenly distributed around the movable base plate 1, providing stable positioning support for the device. The lead screw 702, through its threaded engagement with the positioning plates 701, can move up and down to adjust the soil penetration depth of the tapered foot 703. The tapered foot 703, fixedly connected to the bottom end of the lead screw 702, is inserted into the soil, utilizing soil resistance to fix the movable base plate 1 and prevent displacement of the device during operation. A fixing ring 704 fixedly connected to the lead screw 702 increases the contact area with the ground, enhancing positioning accuracy. Stability is ensured to prevent excessive sinking of the lead screw 702. Rubber pads 10 are fixedly connected to adjacent sides of the two jaws 204 to increase the friction between the jaws 204 and the drill rod, while also acting as a buffer to prevent damage to the drill rod surface by the jaws 204. At the same time, by setting multiple anti-slip strips 11, the friction between the rubber pads 10 and the drill rod is further increased to ensure that the drill rod will not slip during clamping. Multiple auxiliary wheels 12 are fixedly connected to the left and right sides of the outer wall of the jaws 204 to reduce the resistance of the jaws 204 during movement, making the jaws 204 drive the drill rod to move more smoothly.

[0050] Specifically, when the lead screw 702 is rotated, since the lead screw 702 is threadedly connected to the positioning plate 701, the lead screw 702 will drive the tapered foot 703 at the bottom to move downwards, causing the tapered foot 703 to insert into the soil. The soil resistance on the tapered foot 703 will help to fix the moving base plate 1. The fixing ring 704 in the middle of the lead screw 702 increases the contact area with the ground, further enhancing the stability of the positioning. In addition, the rubber pad 10 and anti-slip strip 11 on the gripper 204 can increase the friction with the drill rod, and the auxiliary wheel 12 helps the gripper 204 move more smoothly when pulling the drill rod.

[0051] The working principle of this device is as follows: First, the movable base plate 1 is moved to the designated drilling position on the soil subgrade. Then, the drill rod is placed between the two grippers 204, ready for traction. Next, the hydraulic rod 206 is activated, extending and pushing the front gripper 204 to rotate around its connection point with the mounting base 203. Because the gears 205 fixedly connected to the bottom ends of the two grippers 204 mesh with each other, the rotation of the front gripper 204 drives the rear gripper 204 to rotate synchronously through the meshing transmission between the gears 205, thus enabling the two grippers 204 to firmly clamp the drill rod. Subsequently, the push rod 207 is activated, pushing the movable base 201 forward along the slide groove 202. Since the top of the movable base 201 is fixedly connected to the mounting base 203, and the mounting base 203 clamps the drill rod through the grippers 204, the movement of the movable base 201 will cause the mounting base 203 and the drill rod to move forward together, achieving traction of the drill rod over a certain distance. When the movable seat 201 moves to the front end of the slide 202, in order to perform the next traction, the hydraulic rod 206 needs to retract, causing the two grippers 204 to open and release the grip on the drill rod. At the same time, the push rod 207 also retracts, moving the movable seat 201 and the mounting seat 203 together to the starting position of the slide 202. Then, the hydraulic rod 206 extends again, causing the grippers 204 to re-grip the drill rod. Then, the push rod 207 extends, moving the movable seat 201 and the mounting seat 203 forward again. This cycle is repeated until the drill rod is completely removed, completing the traction operation for drilling small-diameter pipes. Compared with the traditional method, this greatly simplifies the operation process and improves work efficiency.

[0052] Furthermore, in actual operation, different drilling angles result in different traction angles for the drill rod. When it is necessary to adjust the traction angle, push rod 2 301 is activated. The bottom of push rod 2 301 is fixed to the middle of the top of the movable base plate 1. When it is pushed forward, it will drive the rotating seat 1 303, which is fixedly connected to it, to slide within the sliding groove 302. The left side of the inner wall of the rotating seat 1 303 is rotatably connected to the connecting rod 304, which in turn is rotatably connected to the rotating seat 2 305. The top of the rotating seat 2 305 is fixedly connected to the bottom of the support plate 5. Therefore, when the rotating seat 1 303 moves within the sliding groove 302, it will generate an upward pushing force on the support plate 5 through the connecting rod 304. The support plate 5 is rotatably connected to the connecting seat 4. Under the pushing force of the connecting rod 304, the support plate 5 will rotate about the connection point with the connecting seat 4 as the axis. In this way, the tilt angle of the support plate 5 is adjusted, which in turn changes the angle of the traction mechanism 2 installed on the support plate 5, thereby adapting to the traction of drill rods at different angles and ensuring that the drill rods can be smoothly pulled at different drilling angles, thus improving the applicability and flexibility of the device.

[0053] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A simple drilling and pulling device for small diameter pipes in earth roadbeds, characterized in that It includes a movable base plate (1), a traction mechanism (2), an adjustment mechanism (3), a connecting seat (4), and a support plate (5); A pair of connecting seats (4) are fixedly connected to the upper surface of the movable base plate (1), one end of the support plate (5) is rotatably connected to the connecting seats (4), the adjustment mechanism (3) is set on the movable base plate (1), and the adjustment mechanism (3) is rotatably connected to the lower surface of the support plate (5). The traction mechanism (2) includes a movable seat (201), a mounting seat (203), a gripper (204), a gear (205), a hydraulic rod (206), and a push rod (207). The movable seat (201) is slidably connected to the support plate (5). The output end of the push rod (207) is connected to the movable seat (201). The top of the movable seat (201) is connected to the mounting seat (203). A pair of grippers (204) are rotatably connected to the top of the mounting seat (203). A gear (205) is connected to the tail of the gripper (204). The two gears (205) are meshed. A pair of hydraulic rods (206) are rotatably connected to the side of the mounting seat (203) near the movable seat (201). The output end of the hydraulic rod (206) is rotatably connected to the gripper (204).

2. The simple drilling and pulling device for small-diameter pipes of earth roadbed according to claim 1, characterized in that, The adjustment mechanism (3) includes push rod two (301), rotating seat one (303), connecting rod (304) and rotating seat two (305); The moving base plate (1) is provided with a sliding groove (302), a rotating seat (303) is slidably connected to the sliding groove (302), one end of a connecting rod (304) is rotatably connected to the rotating seat (303), the other end of the connecting rod (304) is rotatably connected to the rotating seat (305), the rotating seat (305) is fixedly connected to the support plate (5), and the push rod (301) is fixedly connected to the moving base plate (1), and the output end of the push rod (301) is connected to the rotating seat (303).

3. The simple drilling and pulling device for small diameter pipe of earth roadbed according to claim 1, wherein The support plate (5) is provided with a sliding groove (202), and guide grooves (15) are provided on the inner walls on both sides of the sliding groove (202). Rollers (13) are provided at the bottom of the inner wall of the sliding groove (202). Guide blocks (14) are provided on both sides of the movable seat (201). The movable seat (201) is slidably connected to the sliding groove (202), and the guide blocks (14) are slidably connected to the guide grooves (15). The support plate (5) has a push rod mounting hole, and push rod 1 (207) is set in the push rod mounting hole.

4. The simple drilling and traction device for small-diameter pipes in soil subgrade according to claim 1, characterized in that, The device also includes a support assembly (6). The support assembly includes a hollow sleeve (601), a threaded rod (602), a rotating sleeve (605), and an arc plate (606). One end of the hollow sleeve (601) is fixedly connected to the support plate (5), and the other end of the hollow sleeve (601) is rotatably connected to the rotating sleeve (605). The inner wall of the rotating sleeve (605) is provided with threads. The threaded rod (602) is threadedly connected to the rotating sleeve (605) and extends to the inner wall of the hollow sleeve (601). Limiting blocks (603) are provided on both sides of the threaded rod (602). The limiting blocks (603) are slidably connected to the limiting groove (604) on the inner wall of the hollow sleeve (601). The arc plate (606) is fixedly connected to the threaded rod (602).

5. The simple drilling and traction device for small-diameter pipes in soil subgrade according to claim 4, characterized in that, The upper surface of the arc plate (606) is provided with a plurality of balls (607).

6. The simple drilling and traction device for small-diameter pipes in soil subgrade according to claim 1, characterized in that, The device also includes a positioning component (7). The positioning component (7) includes a positioning plate (701), a lead screw (702), a tapered foot (703), and a fixing ring (704); the side of the movable base plate (1) is provided with multiple positioning plates (701), the positioning plate (701) is threaded with a lead screw (702), the bottom end of the lead screw (702) is fixedly connected with a tapered foot (703), and the outer wall of the lead screw (702) is fixedly connected with a fixing ring (704).

7. The simple drilling and traction device for small-diameter pipes in soil subgrade according to claim 1, characterized in that, A drag plate (8) is provided on one side of the movable base plate (1), and a reserved hole (9) is provided on the drag plate (8).

8. The simple drilling and traction device for small-diameter pipes in soil subgrade according to claim 1, characterized in that, Multiple rubber pads (10) are evenly arranged on the clamping surface of the gripper (204).

9. The simple drilling and traction device for small-diameter pipes in soil subgrade according to claim 8, characterized in that, An anti-slip strip (11) is also provided between two adjacent rubber pads (10).

10. The simple drilling and traction device for small-diameter pipes in soil subgrade according to claim 9, characterized in that, Multiple auxiliary wheels (12) are provided on the outer wall of the gripper (204).

Images