Underground diaphragm wall drilling and leaking stoppage device with low disturbance degree

Abstract

The invention belongs to the technical field of subway construction, and particularly discloses a low-disturbance-degree underground diaphragm wall drilling and leaking stoppage device which comprises a base, a cavity is formed in one end of the base, a screw rod is rotationally connected into the cavity, a first gear fixedly sleeves the screw rod, a first motor is fixedly connected to the outer wall of the base, and a second gear fixedly sleeves the first motor. An output shaft of the first motor penetrates through the outer wall of the base and extends into the cavity, and the extending end of the output shaft of the first motor is fixedly sleeved with a second gear meshed with the first gear. A sliding groove is formed in the top of the base, one end of the screw penetrates through the inner wall of the cavity and extends into the sliding groove, and the end, located in the sliding groove, of the screw is in threaded connection with a sliding block in a sleeved mode. According to the continuous wall drilling and leaking stoppage device, through arrangement of multiple adjusting mechanisms, the angle and the position of the continuous wall drilling and leaking stoppage device can be freely adjusted according to actual use requirements, and therefore the application range of the continuous wall drilling and leaking stoppage device is widened.

Description

Technical Field

[0001] This invention relates to the field of subway construction technology, and in particular to a low-disturbance underground continuous wall drilling and sealing device. Background Technology

[0002] Infrastructure construction often involves large-scale foundation pit excavation. Diaphragm walls, as a common retaining structure in underground engineering, are widely used for foundation pit maintenance. The joint type and construction quality of diaphragm walls in deep foundation pit construction are major factors affecting the overall waterproofing performance of the retaining structure. As a concealed underground project, the joints of diaphragm walls are the most prone to leakage due to construction techniques. Joint quality is influenced by many factors, making construction quality difficult to control. If leakage is not properly addressed, the loss of sediment behind the diaphragm wall can create voids, leading to foundation pit instability and endangering its safety. Common methods of sealing leaks include using high-pressure jet grouting piles, but the high pressure can actually accelerate leakage and create danger; or applying sealing material to the surface of the diaphragm wall at the leakage point, but if the water pressure in the leak is high, leakage often recurs after a period of time, rendering the sealing ineffective.

[0003] A patent with publication number "CN216767261U" discloses a low-disturbance underground continuous wall drilling and sealing device, including an electric drilling device, a grouting and sealing device, and a connecting mechanism detachably connected to the electric drilling device or the grouting and sealing device. The connecting mechanism includes a housing and an L-shaped channel provided inside the housing for the flow of grouting fluid. The two ends of the L-shaped channel are respectively designated as a first port and a second port, which are located on the side and bottom of the housing, respectively.

[0004] However, the existing drilling and sealing devices have a relatively simple structure and cannot be freely adjusted in terms of angle and position according to actual usage requirements, thus affecting the applicability of the drilling and sealing devices. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] The purpose of this invention is to solve the problem that existing drilling and sealing devices cannot freely adjust their angle and position according to actual usage requirements, and to propose a low-disturbance drilling and sealing device for underground continuous walls.

[0007] 2. Technical Solution

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A low-disturbance underground continuous wall drilling and sealing device includes a base, one end of which is provided with a cavity, a screw is rotatably connected in the cavity, a first gear is fixedly sleeved on the screw, a first motor is fixedly connected to the outer wall of the base, the output shaft of the first motor passes through the outer wall of the base and extends into the cavity, and a second gear that meshes with the first gear is fixedly sleeved at one end of the extended output shaft of the first motor.

[0010] The base has a groove at the top. One end of the screw penetrates the inner wall of the cavity and extends into the groove. A slider is threaded onto the end of the screw located in the groove. A support block is fixedly connected to the top of the slider. A support column and a hydraulic cylinder are fixedly connected to the top of the support block. A sliding opening is provided on the support column. A guide rod is fixedly connected inside the sliding opening. A bearing plate is slidably sleeved on the guide rod. The bearing plate passes through both ends of the sliding opening and extends outward.

[0011] The bottom of one end of the support plate is fixedly connected to the output end of the hydraulic cylinder. The end of the support plate away from the hydraulic cylinder is rotatably connected to the mounting plate via a rotating shaft. A fixing block is fixedly connected to the top of the support plate. The fixing block and the mounting plate are connected via a telescopic cylinder. The two ends of the telescopic cylinder are rotatably connected to the fixing block and the mounting plate, respectively. A second motor is fixedly connected to the top of the mounting plate. A worm gear is fixedly connected to the output end of the second motor. A drill rod is rotatably inserted into the mounting plate. A worm wheel that meshes with the worm gear is fixedly sleeved on the drill rod. A channel is provided inside the drill rod. The bottom of the drill rod penetrates the mounting plate and extends downward. A through-hole corresponding to the drill rod is provided on the mounting plate. A sliding sleeve is fixedly sleeved on the end of the drill rod located in the through-hole.

[0012] Preferably, the bottom of the base is rotatably connected to multiple universal self-locking wheels.

[0013] Preferably, a slide rod is fixedly connected inside the slide groove, and the slide block is provided with a slide opening corresponding to the slide rod.

[0014] Preferably, a torsion spring is sleeved on the rotating shaft, and the two ends of the torsion spring are fixedly connected to the mounting plate and the bearing plate, respectively.

[0015] Preferably, a support spring is sleeved on the guide rod, and the two ends of the support spring are fixedly connected to the inner wall of the bearing plate and the sliding opening, respectively.

[0016] Preferably, a ball bearing is fixedly embedded in the through-hole, and the ball bearing is fixedly sleeved on the outside of the drill rod.

[0017] Preferably, the bottom of the bearing plate away from the hydraulic cylinder is connected to the top of the support block via a damping shock absorber.

[0018] Preferably, a support sleeve is rotatably sleeved on the drill rod, and one side of the support sleeve abuts against the bottom of the mounting plate.

[0019] Preferably, a connecting flange is rotatably fitted onto the top of the drill pipe.

[0020] 3. Beneficial effects

[0021] Compared with the prior art, the advantages of this invention are:

[0022] (1) In this invention, by setting multiple adjustment mechanisms, the continuous wall drilling and sealing device can be freely adjusted in angle and position according to actual usage requirements, thereby improving the applicability of the continuous wall drilling and sealing device.

[0023] (2) In this invention, the second spring can provide a certain elastic support for the bearing plate, the torsion spring can provide a certain torsion support for the mounting plate, and the damping shock absorber can provide a certain shock absorption and buffering effect for the bearing plate.

[0024] (3) The universal self-locking wheel in this invention can facilitate the movement of the base, the slide bar can prevent the slider from shaking, the ball bearing can reduce the friction between the drill rod and the inner wall of the through hole, and the support sleeve can prevent the drill rod from shaking. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a low-disturbance underground continuous wall drilling and sealing device proposed in this invention.

[0026] Figure 2 This is a side view of the first motor of a low-disturbance underground continuous wall drilling and sealing device proposed in this invention.

[0027] Figure 3 This is a side view of the guide rod of a low-disturbance underground continuous wall drilling and plugging device proposed in this invention.

[0028] Figure 4 This is a top view of the base structure of a low-disturbance underground continuous wall drilling and sealing device proposed in this invention.

[0029] In the diagram: 1. Base, 2. Screw, 3. First gear, 4. First motor, 5. Second gear, 6. Slider, 7. Support block, 8. Support column, 9. Hydraulic cylinder, 10. Guide rod, 11. Bearing plate, 12. Rotary shaft, 13. Mounting plate, 14. Fixing block, 15. Telescopic cylinder, 16. Second motor, 17. Worm gear, 18. Drill rod, 19. Worm wheel, 20. Channel, 21. Sliding sleeve, 22. Universal self-locking wheel, 23. Sliding rod, 24. Support spring, 25. Ball bearing, 26. Damping shock absorber, 27. Support sleeve, 28. Connecting flange. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0032] Example 1:

[0033] Reference Figure 1-4 A low-disturbance underground continuous wall drilling and sealing device includes a base 1. The bottom of the base 1 is rotatably connected to multiple universal self-locking wheels 22 for easy movement of the base 1. One end of the base 1 is provided with a cavity, and a screw 2 is rotatably connected in the cavity for driving a slider 6 to slide. A first gear 3 is fixedly sleeved on the screw 2 for driving the screw 2 to rotate. A first motor 4 is fixedly connected to the outer wall of the base 1 for driving a second gear 5 to rotate. The output shaft of the first motor 4 passes through the outer wall of the base 1 and extends into the cavity. One end of the extended output shaft of the first motor 4 is fixedly sleeved with a second gear 5 that meshes with the first gear 3 for driving the screw 2 to rotate.

[0034] In this embodiment, the top of the base 1 is provided with a sliding groove, one end of the screw 2 penetrates the inner wall of the cavity and extends into the sliding groove, and the end of the screw 2 located in the sliding groove is threaded with a slider 6 for driving the support block 7 to slide. A sliding rod 23 is fixedly connected in the sliding groove, and the slider 6 is provided with a sliding opening corresponding to the sliding rod 23 for supporting and guiding the slider 6. The top of the slider 6 is fixedly connected with a support block 7, and the top of the support block 7 is fixedly connected with a support column 8 and a hydraulic cylinder 9 for driving the bearing plate 11 to move up and down.

[0035] In this embodiment, the support column 8 is provided with a sliding opening, and a guide rod 10 is fixedly connected inside the sliding opening. A bearing plate 11 is slidably sleeved on the guide rod 10 for connecting the mounting plate 13. The bearing plate 11 passes through both ends of the sliding opening and extends outward. A support spring 24 is sleeved on the guide rod 10. The two ends of the support spring 24 are fixedly connected to the bearing plate 11 and the inner wall of the sliding opening, respectively, which plays a certain elastic buffering role on the bearing plate 11.

[0036] In this embodiment, the bottom of one end of the bearing plate 11 is fixedly connected to the output end of the hydraulic cylinder 9. The end of the bearing plate 11 away from the hydraulic cylinder 9 is rotatably connected to the mounting plate 13 via the rotating shaft 12, which is used to adjust the angle of the mounting plate 13. The bottom of the end of the bearing plate 11 away from the hydraulic cylinder 9 is connected to the top of the support block 7 via the damping shock absorber 26, which provides a certain damping and shock absorption effect for the bearing plate 11. A torsion spring is sleeved on the rotating shaft 12, and the two ends of the torsion spring are fixedly connected to the mounting plate 13 and the bearing plate 11 respectively, which provides a certain torsional support for the mounting plate 13.

[0037] In this embodiment, a fixing block 14 is fixedly connected to the top of the bearing plate 11. The fixing block 14 is connected to the mounting plate 13 through a telescopic cylinder 15 for adjusting the angle of the mounting plate 13. The two ends of the telescopic cylinder 15 are rotatably connected to the fixing block 14 and the mounting plate 13 respectively. A second motor 16 is fixedly connected to the top of the mounting plate 13 for driving the drill rod 18 to rotate. A worm gear 17 is fixedly connected to the output end of the second motor 16 for driving the worm wheel 19 to rotate. The drill rod 18 is rotatably inserted on the mounting plate 13 for drilling. A worm wheel 19 that meshes with the worm gear 17 is fixedly sleeved on the drill rod 18.

[0038] In this embodiment, the drill rod 18 is provided with a channel 20 to facilitate the introduction of grouting fluid. The bottom of the drill rod 18 passes through the mounting plate 13 and extends downward. The mounting plate 13 is provided with a through-hole corresponding to the drill rod 18. A ball bearing 25 is fixedly embedded in the through-hole. The ball bearing 25 is fixedly sleeved on the outside of the drill rod 18 to reduce the friction between the drill rod 18 and the inner wall of the through-hole. A sliding sleeve 21 is fixedly sleeved on one end of the drill rod 18 located in the through-hole. A support sleeve 27 is rotatably sleeved on the drill rod 18. One side of the support sleeve 27 abuts against the bottom of the mounting plate 13. A connecting flange 28 is rotatably sleeved on the top of the drill rod 18 to facilitate connection with an external grouting pipe.

[0039] In this embodiment, the first motor 4 is first turned on, and the screw 2 is rotated by the meshing action between the first gear 3 and the second gear 5. This causes the support block 7 to move left and right through the slider 6, adjusting the horizontal position of the drill rod 18. Then, the hydraulic cylinder 9 is turned on to move the bearing plate 11 up and down, adjusting the height of the drill rod 18. Then, the telescopic cylinder 15 is turned on to rotate the mounting plate 13, adjusting the angle of the drill rod 18. Then, the second motor 16 is turned on to rotate the drill rod 18 for drilling. The support spring 24 provides elastic support to the bearing plate 11, while the torsion spring provides torsional support to the mounting plate 13. The damping shock absorber 26 provides shock absorption to the bearing plate 11. Then, grouting fluid is injected into the drill rod 18 through the channel 20. The grouting fluid enters the leakage hole of the underground continuous wall through the channel 20 to achieve leakage sealing.

[0040] In this embodiment, the continuous wall drilling and sealing device can be freely adjusted in angle and position according to actual usage requirements by setting multiple adjustment mechanisms, thereby improving the applicability of the continuous wall drilling and sealing device.

[0041] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A low-disturbance underground diaphragm wall drilling and sealing device, comprising a base (1), characterized in that, One end of the base (1) is provided with a cavity, and a screw (2) is rotatably connected in the cavity. A first gear (3) is fixedly sleeved on the screw (2). A first motor (4) is fixedly connected to the outer wall of the base (1). The output shaft of the first motor (4) passes through the outer wall of the base (1) and extends into the cavity. A second gear (5) that meshes with the first gear (3) is fixedly sleeved at one end of the extended output shaft of the first motor (4). The base (1) has a groove at the top. One end of the screw (2) passes through the inner wall of the cavity and extends into the groove. The end of the screw (2) located in the groove is threaded with a slider (6). The top of the slider (6) is fixedly connected to a support block (7). The top of the support block (7) is fixedly connected to a support column (8) and a hydraulic cylinder (9). The support column (8) has a sliding opening. A guide rod (10) is fixedly connected inside the sliding opening. A bearing plate (11) is slidably sleeved on the guide rod (10). The bearing plate (11) passes through both ends of the sliding opening and extends outward. The bottom of one end of the support plate (11) is fixedly connected to the output end of the hydraulic cylinder (9). The end of the support plate (11) away from the hydraulic cylinder (9) is rotatably connected to the mounting plate (13) via a rotating shaft (12). A fixing block (14) is fixedly connected to the top of the support plate (11). The fixing block (14) and the mounting plate (13) are connected by a telescopic cylinder (15). The two ends of the telescopic cylinder (15) are rotatably connected to the fixing block (14) and the mounting plate (13) respectively. A second... The output end of the second motor (16) is fixedly connected to a worm gear (17). A drill rod (18) is rotatably inserted on the mounting plate (13). A worm wheel (19) that meshes with the worm gear (17) is fixedly sleeved on the drill rod (18). A channel (20) is provided inside the drill rod (18). The bottom of the drill rod (18) passes through the mounting plate (13) and extends downward. A through hole corresponding to the drill rod (18) is provided on the mounting plate (13). A sliding sleeve (21) is fixedly sleeved on one end of the drill rod (18) located in the through hole.

2. The low-disturbance underground diaphragm wall drilling and sealing device according to claim 1, characterized in that, The bottom of the base (1) is rotatably connected to multiple universal self-locking wheels (22).

3. The low-disturbance underground diaphragm wall drilling and sealing device according to claim 1, characterized in that, A slide rod (23) is fixedly connected inside the slide groove, and the slider (6) is provided with a slide opening corresponding to the slide rod (23).

4. The low-disturbance underground diaphragm wall drilling and sealing device according to claim 1, characterized in that, A torsion spring is fitted on the rotating shaft (12), and the two ends of the torsion spring are fixedly connected to the mounting plate (13) and the bearing plate (11) respectively.

5. The low-disturbance underground diaphragm wall drilling and sealing device according to claim 1, characterized in that, A support spring (24) is sleeved on the guide rod (10), and the two ends of the support spring (24) are fixedly connected to the bearing plate (11) and the inner wall of the slide, respectively.

6. The low-disturbance underground diaphragm wall drilling and sealing device according to claim 1, characterized in that, A ball bearing (25) is fixedly embedded in the through-hole, and the ball bearing (25) is fixedly sleeved on the outside of the drill rod (18).

7. A low-disturbance underground diaphragm wall drilling and sealing device according to claim 1, characterized in that, The bottom of the bearing plate (11) away from the hydraulic cylinder (9) is connected to the top of the support block (7) by a damping shock absorber (26).

8. A low-disturbance underground diaphragm wall drilling and sealing device according to claim 1, characterized in that, A support sleeve (27) is rotatably sleeved on the drill rod (18), and one side of the support sleeve (27) abuts against the bottom of the mounting plate (13).

9. A low-disturbance underground diaphragm wall drilling and sealing device according to claim 1, characterized in that, The top of the drill pipe (18) is rotatably fitted with a connecting flange (28).

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