A grouting tube

Abstract

The utility model belongs to the field of building engineering, concretely relates to a grouting pipe, including outer tube, inner tube and anchor rod, a plurality of outer tubes are detachably connected in proper order, and one inner tube is slidably arranged in each outer tube, a plurality of inner tubes are detachably connected in proper order, and the outer wall of outer tube is provided with the inclined cavity in penetration, and the anchor rod for fixing is slidably arranged in the inclined cavity. The outer tube is inserted into the borehole after connection, and the inner tube is inserted after the outer tube is laid, and the anchor rod is pushed to embed into the soil layer and the relative fixation of the device and the soil layer is realized in the process of sliding down when the inner tube is inserted into the outer tube.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering, and specifically relates to a grouting pipe. Background Technology

[0002] Grouting is a practical and effective method for reinforcing and sealing leaks. It involves adding an appropriate amount of cement to the existing soil to improve its physical properties and ensure the soil reaches the strength required for construction projects. With the continuous development of grouting materials, the application scope of grouting technology is expanding, now covering various engineering fields such as urban underground engineering, foundations, mining, roads and bridges, water conservancy, construction, and railways. However, current grouting pipes may detach and be pulled out during the grouting process due to grouting pressure, rendering the grouting borehole unusable and resulting in significant waste. Utility Model Content

[0003] The purpose of this invention is to provide a grouting pipe for injecting mud, so as to solve the problems existing in the prior art. To achieve the above-mentioned objective, the technical solution adopted by this invention is as follows:

[0004] A grouting pipe includes an outer pipe, an inner pipe, and an anchor rod; a plurality of the outer pipes are detachably connected in sequence, and an inner pipe is slidably disposed inside each outer pipe; the plurality of inner pipes are detachably connected in sequence, and an inclined cavity is provided through the outer wall of the outer pipe, and the anchor rod for fixing is slidably disposed inside the inclined cavity.

[0005] Furthermore, the outer tube includes an outer tube body, the outer wall of the outer tube body is uniformly provided with a plurality of inclined cavities in the circumferential direction, the outer tube body is uniformly provided with a number of sets of inclined cavities in the length direction, the top of the outer tube body is provided with a first internal thread, the outer tube body is uniformly provided with a number of mud outlet hole groups in the length direction, and the mud outlet hole group includes a plurality of mud outlet holes uniformly provided in the circumferential direction of the outer tube body.

[0006] Furthermore, the outer tube is an outer tube A, and a cone is fixedly provided at the bottom of the outer tube A, with the outer tube A located at the very bottom.

[0007] Furthermore, the outer tube is an outer tube B, and the bottom of the outer tube B is fixedly provided with a first external thread, which is threadedly connected to the first internal thread.

[0008] Furthermore, two sliding grooves are symmetrically arranged around an axis on the inner wall of the outer tube, and the sliding grooves are arranged along the length direction of the outer tube. The inner tube includes an inner tube body, and two sliders are symmetrically arranged around an axis on the outer wall of the inner tube. The sliders slide in cooperation with the sliding grooves.

[0009] Furthermore, multiple through grooves are uniformly provided along the circumference of the inner tube sidewall, and the positions of the through grooves correspond to the mud outlet hole group.

[0010] Furthermore, a second external thread is fixedly provided at the bottom of the inner tube body, and a second internal thread is fixedly provided at the top of the inner tube body, wherein the second internal thread of one inner tube body is threadedly connected to the second external thread of the other inner tube body.

[0011] Furthermore, the inclined cavity includes a first cavity and a second cavity. The first cavity extends through the outer tube, and the second cavity is located in the middle of the first cavity. The vertical height of the end of the first cavity and the second cavity near the inside of the outer tube is lower than that of the end near the outside of the outer tube.

[0012] Furthermore, the anchor rod includes a sliding rod, a limiting block is provided in the middle of the sliding rod, and a spring is sleeved on the sliding rod. The spring connects the inner wall of the second cavity and the end of the limiting block near the outer wall of the outer tube.

[0013] The present invention has the following advantages: It is provided with an outer tube, and the side wall of the outer tube is slidably provided with an anchor rod. When the inner tube is inserted into the outer tube and slides to the bottom, it will contact the corresponding anchor rod and push it to embed into the soil layer outward. This avoids the entire tube from sliding outward due to excessive pressure during grouting, which would cause the borehole to be scrapped. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a sectional view of the outer tube;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a 3D view of the inner tube. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0020] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 utility model 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 utility model.

[0021] like Figure 1-5 As shown, a grouting pipe includes an outer pipe 1, an inner pipe 4, and an anchor rod 5. Several outer pipes 1 are detachably connected in sequence. Each outer pipe 1 has a sliding inner pipe 4. Several inner pipes 4 are detachably connected in sequence. An inclined cavity is provided through the outer wall of the outer pipe 1, and the anchor rod 5 for fixation is slidably installed within the inclined cavity. After the outer pipes 1 are connected, they are inserted into the borehole. After the outer pipes are laid, the inner pipes 4 are inserted. As the inner pipe 4 is inserted into the outer pipe 1 and slides downwards, it pushes the anchor rod 5 outwards to embed into the soil layer, achieving relative fixation between the device and the soil layer.

[0022] like Figure 3 As shown, the outer pipe 1 includes an outer pipe body 101. The outer wall of the outer pipe body 101 is uniformly provided with a plurality of inclined cavities in the circumferential direction to form a set of inclined cavities. The outer pipe body 101 is uniformly provided with several sets of inclined cavities in the length direction. The top of the outer pipe body 101 is provided with a first internal thread 104. The first internal thread 104 is used to connect another outer pipe body 101. The outer pipe body 101 is uniformly provided with several sets of mud outlet holes in the length direction. The mud outlet hole sets include a plurality of mud outlet holes 102 uniformly arranged in the circumferential direction of the outer pipe body 101. The mud outlet holes 102 are used to inject mud into the soil layer.

[0023] It should be noted that outer pipe 1 includes outer pipe A and outer pipe B. A cone 3 is fixedly installed at the bottom of outer pipe A, which is located at the very bottom. The cone 3 is used to break through obstacles at the bottom. A first external thread 2 is fixedly installed at the bottom of outer pipe B, and the first external thread 2 is threadedly connected to a first internal thread 104. That is, outer pipe A is only located at the very bottom, and several outer pipes A are connected above it. There can be zero outer pipes A, depending on the thickness of the soil layer.

[0024] like Figure 3As shown, two symmetrical sliding grooves 103 are provided on the inner wall of the outer tube 101 around an axis. The sliding grooves 103 are arranged along the length of the outer tube 101. The inner tube 4 includes an inner tube 405. Two sliders 402 are symmetrically arranged on the outer wall of the inner tube 405 around an axis. The sliders 402 slide in conjunction with the sliding grooves 103. In order to align the sliding grooves 103 of different outer tubes 101, there are requirements for the starting and ending points of the first external thread 2 and the first internal thread 104. The starting and ending points of the threads are both on the straight line where the sliding grooves 103 are located. Similarly, the second internal thread 404 and the second external thread 401 on the outer tube 405 are both set on the straight line where the sliders 402 are located.

[0025] like Figure 5 As shown, multiple through grooves 403 are evenly provided circumferentially on the side wall of the inner tube 405. The positions of the through grooves 403 correspond to the mud outlet hole group, that is, the gaps where the through grooves 403 are located completely cover all the mud outlet holes 102. The bottom of the inner tube 405 is fixedly provided with a second external thread 401, and the top of the inner tube 405 is fixedly provided with a second internal thread 404. The second internal thread 404 of one inner tube 405 is threadedly connected to the second external thread 401 of another inner tube 405.

[0026] like Figure 4 As shown, the inclined cavity includes a first cavity 106 and a second cavity 105. The first cavity 106 penetrates the outer tube 101, and the second cavity 105 is located in the middle of the first cavity 106. The vertical height of the ends of the first cavity 106 and the second cavity 105 near the inside of the outer tube 101 is lower than that of the ends near the outside of the outer tube 101. The anchor rod 5 includes a sliding rod 501, a limiting block 503 is located in the middle of the sliding rod 501, and a spring 502 is sleeved on the sliding rod 501. The spring 502 connects the inner wall of the second cavity 105 and the end of the limiting block 503 near the outer wall of the outer tube 101. The cross-sections of both ends of the slide rod 501 are triangular as shown in the diagram. When the inner tube 405 slides downward, it pushes the right side of the slide rod to slide to the left along the first cavity 106. The left end of the slide rod 501 is embedded in the soil layer. The slide rod 501 is set with a downward tilt from left to right. This setting achieves the barbed effect of the anchor rod 5. When the device wants to move outward, it will increase the resistance and prevent it from sliding outward, thereby achieving the purpose of preventing it from getting out of the borehole. After the inner tube 4 is removed, the spring 502 drives the slide rod 501 to slide to the right into the first cavity 106, at which point the outer tube 1 can be removed.

[0027] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications, alterations, alterations, or substitutions made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. A grouting pipe, characterized in that: It includes an outer tube (1), an inner tube (4) and an anchor rod (5); several outer tubes (1) are detachably connected in sequence, and an inner tube (4) is slidably provided in each outer tube (1). Several inner tubes (4) are detachably connected in sequence. An inclined cavity is provided through the outer wall of the outer tube (1), and the anchor rod (5) for fixing is slidably provided in the inclined cavity.

2. A grouting pipe according to claim 1, characterized in that: The outer tube (1) includes an outer tube body (101). The outer tube body (101) has a plurality of inclined cavities uniformly arranged in the circumferential direction on its outer wall. The outer tube body (101) has a plurality of sets of inclined cavities uniformly arranged in the length direction. The top of the outer tube body (101) is provided with a first internal thread (104). The outer tube body (101) has a plurality of mud outlet hole groups uniformly arranged in the length direction. The mud outlet hole group includes a plurality of mud outlet holes (102) uniformly arranged in the circumferential direction of the outer tube body (101).

3. A grouting pipe according to claim 2, characterized in that: The outer tube (1) is the outer tube A, and a cone (3) is fixedly provided at the bottom of the outer tube A, with the outer tube A located at the bottommost point.

4. A grouting pipe according to claim 2, characterized in that: The outer tube (1) is the outer tube B, and the bottom of the outer tube B is fixedly provided with a first external thread (2), which is threadedly connected to the first internal thread (104).

5. A grouting pipe according to claim 2, characterized in that: The inner wall of the outer tube (101) is provided with two sliding grooves (103) symmetrically arranged around the axis. The sliding grooves (103) are arranged along the length direction of the outer tube (101). The inner tube (4) includes an inner tube body (405). The outer wall of the inner tube body (405) is provided with two sliders (402) symmetrically arranged around the axis. The sliders (402) slide in cooperation with the sliding grooves (103).

6. A grouting pipe according to claim 5, characterized in that: The inner tube (405) has multiple through grooves (403) evenly distributed along its circumference on its side wall, and the positions of the through grooves (403) correspond to the mud outlet hole group.

7. A grouting pipe according to claim 5, characterized in that: The bottom of the inner tube (405) is fixedly provided with a second external thread (401), and the top of the inner tube (405) is fixedly provided with a second internal thread (404), wherein the second internal thread (404) of one inner tube (405) is threadedly connected to the second external thread (401) of the other inner tube (405).

8. A grouting pipe according to claim 2, characterized in that: The inclined cavity includes a first cavity (106) and a second cavity (105). The first cavity (106) penetrates the outer tube (101). The second cavity (105) is located in the middle of the first cavity (106). The vertical height of the end of the first cavity (106) and the second cavity (105) near the inside of the outer tube (101) is lower than that of the end near the outside of the outer tube (101).

9. A grouting pipe according to claim 8, characterized in that: The anchor rod (5) includes a slide rod (501), a limiting block (503) is provided in the middle of the slide rod (501), and a spring (502) is sleeved on the slide rod (501). The spring (502) connects the inner wall of the second cavity (105) and the end of the limiting block (503) near the outer wall of the outer tube (101).

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