Auxiliary tool for installing pressurizing pipe

Abstract

The utility model relates to an auxiliary tool for installing a pressurizing pipe in the technical field of pressurizing pipe installation, which comprises a protective pipe and a pressing column, the upper end of the pressing column is installed on an external hammering device, a first flexible connecting piece is connected between the outer wall of the pressing column and the outer wall of the upper end of the protective pipe, and a protective cover which can be opened by pushing inwards is arranged on a lower port cover of the protective pipe; the installation auxiliary tool can protect the pressurizing pipe to be smoothly and conveniently placed into the soil.

Description

Technical Field

[0001] The utility model relates to the technical field of boost pipe installation, in particular to an auxiliary tool for installing a boost pipe. Background Art

[0002] As is known, vacuum preloading soft foundation treatment is a method of foundation treatment. This method is usually applied to areas with loose soil or high moisture content. Through drainage and preloading, the density and bearing capacity of the soil are increased, thereby providing more stable support for infrastructure such as buildings, tunnels, and bridges. There are many existing drainage treatment methods. One is a pressurized vacuum flexible pipe well drainage system disclosed in the Chinese invention patent with announcement number CN109763479A, in which the pipe is inserted into the ground to draw a vacuum, and the water is pumped out using the pores in the pipe wall. Another method is to use a booster pipe in combination with a drainage board, and use the gap between the booster pipe walls to pump air into the soil and increase the pressure, while the drainage board siphons the water outward.

[0003] Regardless of which of the above methods is used, the boost pipe needs to be inserted into the soil. Due to the limited strength of the air permeable structure of the boost pipe, it is impossible to use a pressure hammer device to directly drive the boost pipe into the soil. Even if the hole is drilled in advance, the soil will be moist and loose, resulting in the inability to maintain complete unobstructed drilling. In addition, the boost pipe is prone to deformation and bending when it is long, so it is usually not very smooth to place the boost pipe in the drill hole. Utility Model Content

[0004] In order to overcome the deficiencies in the background technology and solve the existing technical problems, the utility model discloses an auxiliary installation tool for a boost pipe, which can protect the boost pipe so as to be smoothly and conveniently placed into the soil.

[0005] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0006] A boost pipe installation auxiliary tool comprises a protective pipe and a pressure column with an upper end installed on an external hammer pressure device, a first flexible connector is connected between the outer wall of the pressure column and the outer wall of the upper end of the protective pipe, and a protective cover is provided on the lower end cover of the protective pipe that can be opened from the inside.

[0007] Furthermore, the number of the first flexible connecting members is set to two, and they are symmetrically arranged on both sides of the pressure column.

[0008] Furthermore, the first flexible connection member is configured as a chain or a rope.

[0009] Furthermore, one side edge of the protective cover is correspondingly hinged to the corresponding end wall of the protective tube through a hinge, or correspondingly connected through a second flexible member.

[0010] Furthermore, the lower end surface of the pressure column is provided with a groove adapted to be inserted into the gap of the upper end of the protective tube.

[0011] Furthermore, the lower end surface of the protective tube is configured as an inclined surface so that the protective tube forms a pointed tip.

[0012] Furthermore, the inner wall of the protective tube is provided with a plurality of circumferentially arranged reinforcing ribs.

[0013] Furthermore, a clamping ring is fixed to the inner cover surface of the protective cover, and the clamping ring is adapted to be inserted into the lower port of the protective tube, or sleeved outside the lower port of the protective tube.

[0014] Furthermore, a hanging ear is fixed to the outer wall of the upper end of the protective tube, a draw rope is connected between the hanging ear and the middle of the inner cover surface of the protective cover, and a plurality of limiting rings for the draw rope to pass through are fixed to the inner wall of the protective tube at intervals along the axial direction of the protective tube.

[0015] Furthermore, the hammer pressing device is configured as an excavator gun head.

[0016] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0017] The auxiliary installation tool for the boost pipe disclosed in the utility model can cover the lower end of the protective cover with the protective cover, and then use the pressure column connected to the hammer pressure device to press the upper end surface of the protective pipe to press the protective pipe into the soil, and then put the boost pipe into the upper end of the protective pipe, push the protective cover outward, and then use the first flexible connecting piece to pull the protective pipe out, so that the boost pipe can be placed in the soil smoothly and conveniently, which greatly improves the efficiency and safety of inserting the boost pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of an implementation structure of the utility model;

[0019] Figure 2 It is another schematic diagram of the implementation structure of the utility model.

[0020] In the figure: 1, pressure column; 101, groove; 2, first flexible connecting part; 3, protective tube; 4, protective cover; 5, second flexible part; 6, clamping ring; 7, reinforcing rib; 8, pull rope; 9, limiting ring; 10, hanging ear. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" and the like indicating directions or positional relationships, they are only corresponding to the drawings of the present invention, for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction: Embodiment 1:

[0022] Combined with Figure 1The auxiliary tool for installing the boost pipe comprises a protective tube 3 and a pressure column 1 whose upper end is installed on an external hammer pressure device. The hammer pressure device can be set as an excavator gun head, that is, a pressure hammer connected to the wall end of the excavator, which can apply pressure to the protective tube 3 together with the pressure column; as needed, the lower end face of the pressure column 1 is provided with a groove 101 adapted to fit the gap of the upper end of the protective tube 3 to prevent the pressure column 1 from deviating from the upper end of the protective tube 3 when pressing down; a first flexible connector 2 is connected between the outer wall of the pressure column 1 and the outer wall of the upper end of the protective tube 3, and the first flexible connector 2 can prevent the protective tube 3 from being excessively driven into the soil and unable to find the upper pipe opening during the downward pressing process, and can also facilitate the protective tube 3 to be lifted out at the end; as needed, the number of the first flexible connectors 2 is set to two, and they are symmetrically arranged on both sides of the pressure column 1 side, ensuring uniform lifting and pulling, and also serving as a backup. Of course, the specific arrangement quantity can also be more; in addition, the first flexible connecting member 2 can be set as a chain or a rope; the lower port cover of the protective tube 3 is provided with a protective cover 4 that can be opened from the inside, so that the boost pipe can resist and open outward; according to needs, one side edge of the protective cover 4 is hinged to the corresponding end wall of the protective tube 3 through a hinge, and when the protective tube 3 is lifted, it can be pulled out together with the protective cover 4 for continued use next time; in addition, a snap ring 6 is fixed to the inner cover surface of the protective cover 4, and the snap ring 6 is adapted to be inserted into the lower port of the protective tube 3, or to be sleeved on the outside of the lower port of the protective tube 3, so as to facilitate the corresponding cover installation. The snap ring 6 can be set as an elastic member, such as rubber or plastic, to ensure that the cover is tight while facilitating opening together with the protective cover 4.

[0023] To implement the auxiliary tool for installing the boost pipe described in the utility model, the protective cover 4 is first covered on the lower end of the protective pipe 3, and then the upper end surface of the protective pipe 3 is pressed by the pressure column 1 connected to the hammer pressure device to press the protective pipe 3 into the soil. The pressure can be pressed directly or along the pre-drilled hole. Then the pressure column 1 is offset, and the boost pipe is placed from the upper end of the protective pipe 3. The protective cover 4 is pushed open downward, and the protective pipe 3 is pulled out by the first flexible connecting piece 2, so that the boost pipe can be smoothly and conveniently left in the soil. Embodiment 2:

[0024] As attached Figure 2As shown, the difference from the first embodiment is that the lower end surface of the protective tube 3 is set as an inclined surface, so that the protective tube 3 forms a pointed head, which is convenient for the protective tube 3 to be pressed and inserted into the soil. The edge of one side of the protective cover 4 is connected to the corresponding end wall of the protective tube 3 through the second flexible member 5. Compared with the hinged member, the second flexible member 5, such as a cloth belt, a belt, a chain, etc., can fit the wall of the protective tube 3 more closely, and will not scratch the soil when pressed down, and the resistance is small. According to needs, a hanging ear 10 is fixed to the outer wall of the upper end of the protective tube 3, and the hanging ear 10 is connected to the inner cover of the protective cover 4. A draw rope 8 is connected between the middle parts of the surface, and a plurality of limit rings 9 for the draw rope 8 to pass through are fixed at intervals along the axial direction of the inner tube wall of the protective tube 3. The protective cover 4 is tightened by the draw rope 8 to prevent accidental opening during the downward pressing process, and after the draw rope 8 is loosened, the fitted protective cover 4 can also quickly detach from the lower port of the protective tube 3, and the limit ring 9 can ensure that the draw rope 8 is close to the inner tube wall of the protective tube 3, so as not to interfere with the insertion of the boost pipe; in addition, the inner tube wall of the protective tube 3 is provided with a plurality of circumferentially arranged reinforcing ribs 7 to increase the strength of the protective tube 3.

[0025] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. An auxiliary tool for installing a booster pipe, characterized in that: It comprises a protective tube (3) and a pressure column (1) whose upper end is mounted on an external hammer pressing device, wherein a first flexible connecting piece (2) is connected between the outer wall of the pressure column (1) and the outer wall of the upper end of the protective tube (3), and a protective cover (4) capable of being opened by pushing inward is provided on the lower end cover of the protective tube (3).

2. The boost pipe installation auxiliary tool according to claim 1, characterized in that: The number of the first flexible connecting members (2) is set to two, and they are symmetrically arranged on both sides of the pressure column (1).

3. The boost pipe installation auxiliary tool according to claim 1, characterized in that: The first flexible connection member (2) is configured as a chain or a rope.

4. The boost pipe installation auxiliary tool according to claim 1, characterized in that: One side edge of the protective cover (4) is correspondingly hinged to the end wall of the corresponding protective tube (3) via a hinged member, or is correspondingly connected via a second flexible member (5).

5. The boost pipe installation auxiliary tool according to claim 1, characterized in that: The lower end surface of the pressure column (1) is provided with a groove (101) adapted to be inserted into the gap at the upper end of the protective tube (3).

6. The boost pipe installation auxiliary tool according to claim 1, characterized in that: The lower end surface of the protective tube (3) is configured as an inclined surface, so that the protective tube (3) forms a pointed tip.

7. The boost pipe installation auxiliary tool according to claim 1, characterized in that: The inner tube wall of the protective tube (3) is provided with a plurality of circumferentially arranged reinforcing ribs (7).

8. The boost pipe installation auxiliary tool according to claim 1, characterized in that: A clamping ring (6) is fixed to the inner cover surface of the protective cover (4), and the clamping ring (6) is adapted to be inserted into the lower port of the protective tube (3), or to be sleeved outside the lower port of the protective tube (3).

9. The boost pipe installation auxiliary tool according to claim 1, characterized in that: A hanging ear (10) is fixed to the outer wall of the upper end of the protective tube (3), a drawstring (8) is connected between the hanging ear (10) and the middle of the inner cover surface of the protective cover (4), and a plurality of limiting rings (9) for the drawstring (8) to pass through are fixed to the inner wall of the protective tube (3) at intervals along the axial direction of the protective tube (3).

10. The boost pipe installation auxiliary tool according to claim 1, characterized in that: The hammer pressing device is configured as an excavator gun head.

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