Spray head fixing device for precast pile body

Abstract

The spray head fixing device comprises a fixing part and an adjustable part, the adjustable part is arranged on the periphery of the fixing part, the size of the adjustable part can be adjusted, a penetrating hole is formed in the center of the fixing part and used for fixing a spray head, the spray head fixing device further comprises a fastening part, the fastening part is arranged on the outer side of the adjustable part, and the fixing part is used for fixing the spray head. And the fastening part is used for connecting the adjustable part and the prefabricated pile body, the outer side face of the fastening part is matched with the inner side wall of the prefabricated pile body, and the contact area of the fastening part and the prefabricated pile body is increased. The fastening part is arranged on the periphery of the fixing device to increase the contact area between the device and the precast pile body, so that the friction force between the device and the precast pile body is increased, the stability of the fixing device is improved, and recoil force generated by high-pressure water spraying can be resisted during sediment cleaning.

Description

Technical Field

[0001] The present application relates to the technical field of civil engineering, and in particular to a sprinkler fixing device for a prefabricated pile body. Background Art

[0002] In pile foundation projects, implanted piles are often used to increase the stability of the project foundation. However, when the piles are placed, a large amount of loose soil often falls at the bottom of the piles, causing the implanted piles to be unstable or uneven, so the soil at the bottom of the borehole needs to be cleaned. In the prior art, high-pressure water spraying is often used to clean the loose soil at the bottom of the borehole or flush the soil so that when the implanted piles fall to the bottom of the borehole, there will be no loose soil underneath. In the existing method, a fixing device is used to fix the rotating sprinkler in the prefabricated pile body and sink it to the bottom of the borehole for flushing.

[0003] For example, the Chinese invention patent with application number 202210954600.6 discloses a pile sinking device and method for cleaning sediment, the device includes a prefabricated pile body, a high-pressure water pipe connected to a water source, a rotating nozzle arranged in the high-pressure water pipe, and a fixed bracket clamped in the through hole of the prefabricated pile body, which is used to fix the high-pressure water pipe and the rotating nozzle in the through hole of the prefabricated pile body; the fixed bracket includes a fixed plate and an airbag, the middle of the fixed plate is provided with a through hole for fixing the rotating nozzle, the airbag is fixed to the edge of the fixed plate for adjusting the size of the fixed bracket, the airbag is connected to a ventilation pipe, and the ventilation pipe extends outside the drilled hole. The fixed bracket is convenient for fixing the rotating sprinkler at an appropriate height, and the size of the fixed bracket is adjustable, which is convenient for installation. After the operation is completed, it is also convenient to take out the fixed bracket and the rotating sprinkler. Moreover, a soft sealing film is arranged on the fixed bracket to make the prefabricated pile body descend and flush the sediment, and the air pressure is pressed down to make the water and the sediment go downward and outward, so as to flush the sediment into the gap between the side wall of the borehole and the outer wall of the prefabricated pile body as much as possible. However, in actual use, since the rotating sprinkler is subjected to a large upward thrust when spraying water, and the air bag is in a circular ring shape, when the rotating sprinkler is fixed in the prefabricated pile body by the air bag, only a very small part of the side of the air bag contacts the inner side of the prefabricated pile body. When the upward thrust of the rotating sprinkler pushes the entire fixed bracket, the air bag is easily pushed to slide, so that the nozzle moves or falls off, and the direction of the sprinkler water spraying will be uncontrolled, and it is difficult to achieve the purpose of flushing the sediment. Therefore, it is necessary to find a fixed bracket that can solve the above problems. Summary of the invention

[0004] In order to solve the above-mentioned problems, the present application proposes a nozzle fixing device for a prefabricated pile body, which increases the contact area between the device and the prefabricated pile body by arranging a fastening part on the periphery of the fixing device, thereby increasing the friction between the two, increasing the stability of the fixing device, and being able to resist the recoil force generated by high-pressure water spraying when cleaning sediment.

[0005] This application is implemented through the following technical solutions:

[0006] A nozzle fixing device for a prefabricated pile body, comprising a fixing part and an adjustable part, wherein the adjustable part is arranged around the fixing part, the adjustable part can be adjusted in size, a through hole is provided in the center of the fixing part for fixing the nozzle, and further comprising:

[0007] The fastening part is arranged on the outside of the adjustable part and is used to connect the adjustable part and the prefabricated pile body. The outer side surface of the fastening part fits with the inner side wall of the prefabricated pile body to increase the contact area between the fastening part and the prefabricated pile body.

[0008] Furthermore, the fixing portion is a circular plate, and the adjustable portion surrounds the fixing portion.

[0009] Furthermore, the fixing part is an inflatable plate, an inflatable frame is provided inside the fixing part, and the inflatable frame radiates outwards from the center of the fixing part.

[0010] Furthermore, the adjustable part is an annular air bag, the annular air bag is fixed around the fixed part, and an air filling tube is provided on the adjustable part.

[0011] Furthermore, the adjustable part is an internally connected inflatable block, a plurality of the inflatable blocks are connected in a ring, the inflatable block surrounds the fixed part, and the size of the entire fixing device is adjusted by inflation and deflation, and an inflation tube is provided on the inflatable block.

[0012] Furthermore, the fastening part is arranged around the outside of the adjustable part, and the fastening part includes an extrusion surface and an extrusion part. The extrusion part is an air bag, and the extrusion surface is arranged in an arc shape on the side of the extrusion part to fix the entire device tightly against the inner wall of the prefabricated pile body when inflated.

[0013] Furthermore, the fastening portion is in the shape of a ring or a block connected to form a ring, and the curvature of the extrusion surface matches the inner side surface of the prefabricated pile body.

[0014] Furthermore, the height of the extrusion surface is greater than the height of the adjustable portion, and the adjustable portion is located at the midline of the extrusion surface.

[0015] Furthermore, an elastic pit is provided on the extrusion surface, and an extrusion protrusion is provided on the extrusion part. The elastic pit is arranged on the outer surface of the extrusion surface, and the elastic pit is recessed toward one side of the extrusion part. The extrusion protrusion is arranged on the extrusion part, and each extrusion protrusion corresponds to an elastic pit, so that when the extrusion part is inflated, the extrusion protrusion is inflated to extrude the elastic pit outward to contact the inner wall of the prefabricated pile body.

[0016] The implementation of the above technical solution in this application has the following beneficial effects:

[0017] (1) The present application increases the contact area between the device and the prefabricated pile body by arranging a fastening portion on the periphery of the fixing device, thereby increasing the friction between the two, increasing the stability of the fixing device, and being able to resist the recoil force generated by high-pressure water spraying when cleaning sediment;

[0018] (2) The present application sets the adjustable part and the fastening part into an airbag shape, so that the size of the whole device can be easily controlled. It only needs to connect the air pipe to inflate or deflate, which is simple to operate. The whole device is easy to store and light. Reducing the weight of the device itself is conducive to ensuring the stability of its installation in the prefabricated pile body.

[0019] (3) The present application provides an elastic concave pit and an extrusion protrusion so that when the fixing device is installed, the extrusion protrusion expands and squeezes the elastic concave pit tightly against the inner wall of the precast pile body, which can greatly increase the gripping force of the extrusion surface and increase the stability of the entire device when it is clamped on the inner side of the precast pile body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the nozzle fixing device of the present application;

[0021] Figure 2 A schematic cross-sectional structure diagram of an embodiment of the nozzle fixing device of the present application;

[0022] Figure 3 A schematic cross-sectional view of another embodiment of the nozzle fixing device of the present application;

[0023] Figure 4 A schematic diagram of a top view of an embodiment of a nozzle fixing device of the present application;

[0024] Figure 5 A schematic diagram of a top view of an embodiment of a nozzle fixing device of the present application;

[0025] Figure 6 A schematic diagram of a top view of an embodiment of a nozzle fixing device of the present application;

[0026] Figure 7 This is a schematic structural diagram of the elastic concave pit and the extrusion protrusion of the extrusion part of the nozzle fixing device of the present application before inflation;

[0027] Figure 8 This is a schematic diagram of the structure of the elastic concave pit and the extrusion protrusion of the extrusion part of the nozzle fixing device of the present application after inflation;

[0028] Fig. 9 This is a schematic diagram of the structure of a traditional nozzle fixing device.

[0029] The descriptions of the reference numerals in the figures are as follows:

[0030] The fixing part 1, the adjustable part 2, the fastening part 3, the prefabricated pile body 4, the inflatable skeleton 5, the air pipe 6, the extrusion surface 7, the extrusion part 8, the elastic pit 9, and the extrusion protrusion 10. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Example 1

[0035] like Figure 1 to Figure 2 As shown, this embodiment provides a nozzle fixing device for a prefabricated pile body, comprising a fixing portion 1 and an adjustable portion 2, wherein the adjustable portion 2 is arranged around the fixing portion 1, the adjustable portion 2 is adjustable in size, a through hole is provided in the center of the fixing portion 1 for fixing the nozzle, and further comprising:

[0036] The fastening part 3 is arranged on the outside of the adjustable part 2 and is used to connect the adjustable part 2 and the prefabricated pile body 4. The outer side surface of the fastening part 3 fits with the inner side wall of the prefabricated pile body 4 to increase the contact area between the fastening part 3 and the prefabricated pile body 4.

[0037] It should be noted that if Fig. 9The figure shows a traditional fixing device structure, in which the contact area between the adjustable part 2 and the prefabricated pile body 4 is small. When the device is subjected to the recoil force of high-pressure water, it is easy to slide up and down, causing the nozzle position to move, affecting the effect of flushing sediment. On the basis of the traditional fixing device, the present application adds a fastening part 3, which is arranged on the outside of the adjustable part 2. By increasing the contact area with the prefabricated pile body 4, the friction area is increased to increase the friction force. The adjustable part 2 and the fastening part 3 are adjustable by inflation. When in use, the entire device is placed at an appropriate position of the prefabricated pile body 4, and the size of the adjustable part 2 is adjusted so that it is stuck in the prefabricated pile body 4. At the same time, the fastener is adjusted by the adjustable part 2 to be close to the inner wall of the prefabricated pile body 4, which can greatly increase the friction between the fixing device and the inner side of the prefabricated pile body 4. In the process of flushing sediment, the fixing device is not easy to move due to the reverse thrust of high-pressure water, thereby ensuring the flushing effect.

[0038] As a further embodiment, Figure 2 As shown, the fixed part 1 is a circular plate, and the adjustable part 2 surrounds the fixed part 1 .

[0039] It should be noted that, by setting the fixing part 1 as a circular plate and setting a perforation at the center of the circular plate, the water inlet of the nozzle is directly fixed at the center of the circular plate, so that the nozzle is located at the center when the device is in use, which is convenient for evenly flushing the surrounding sediment. The adjustable part 2 surrounds the fixing part 1, and the entire fixing device is squeezed and fixed in all directions when in use, which is more stable. The fixing part 1 and the adjustable part 2 can be fixed by bundling, snap-on fixing, etc., and they only need to be firmly fixed.

[0040] As a further embodiment, Figure 5 As shown, the fixing part 1 is an inflatable plate, and an inflatable skeleton 5 is arranged inside the fixing part 1 , and the inflatable skeleton radiates outwards from the center of the fixing part 1 .

[0041] It should be noted that by setting the fixing part 1 as an inflatable board, the overall function of use is not affected, and the structure is light, easy to carry and store, and can be used repeatedly. The inflatable board can also be set integrally with the adjustable part 2 to form an internally connected structure, which is uniformly inflated to form a fixing device. An inflatable skeleton 5 is set in the fixing part 1 to increase the strength of the fixing part 1. Since the rotary nozzle has a certain weight, the fixing part 1 needs to bear a certain weight during installation, so increasing the strength of the fixing part 1 is beneficial to ensuring the stability of the fixing device.

[0042] As a further embodiment, Figure 4 As shown, the adjustable part 2 is an annular air-filled bag, which is fixed around the fixed part 1 , and an air tube 6 is provided on the adjustable part 2 .

[0043] It should be noted that the adjustable part 2 is configured as an annular air bag, which is convenient for storage and adjustment. Especially after flushing the sediment, it is necessary to adjust the size of the fixing device through the adjustable part 2. The air bag can be directly deflated to shrink the adjustable part 2, so that the entire fixing device can be taken out. The operation is simple and fast, and the structure of the annular air bag is light, not easy to damage, and can be used repeatedly.

[0044] As a further embodiment, Figure 6 As shown, the adjustable part 2 is an internally connected inflatable block, and a plurality of the inflatable blocks are connected in a ring shape. The inflatable block surrounds the fixed part 1, and the size of the entire fixing device is adjusted by inflation and deflation. An air pipe 6 is provided on the inflatable block.

[0045] It should be noted that the adjustable part 2 is configured as a plurality of inflatable blocks, which can surround and fix the fixed part 1 in the middle. The plurality of inflatable blocks are arranged in an arc shape and connected to form a ring, which can be contacted and squeezed with the prefabricated pile body 4 around the fixed part 1 and fixed. The plurality of fixed blocks are provided with air pipe connections to make the internals connected, which is convenient for overall inflation and deflation and easy to operate.

[0046] As a further embodiment, the fastening portion 3 is arranged around the outside of the adjustable portion 2, and the fastening portion 3 includes an extrusion surface 7 and an extrusion portion 8. The extrusion portion 8 is an air bag, and the extrusion surface 7 is arranged in an arc shape on the side of the extrusion portion 8, which is used to fix the entire device tightly against the inner wall of the prefabricated pile body 4 when inflated.

[0047] It should be noted that the fastening portion 3 is arranged around the outside of the adjustable portion 2, so that the fixing device is connected and fastened to the prefabricated pile body 4 through the fastening portion 3. By setting the extrusion surface 7 and the extrusion portion 8, the extrusion portion 8 is an air bag, which expands after inflation to stretch the extrusion surface 7 and stick it to the inner wall of the prefabricated pile body 4. The extrusion surface 7 and the prefabricated pile body 4 have a large contact area. When the nozzle sprays water, the fixing device is subjected to an upward thrust, and the extrusion surface 7 and the prefabricated pile body 4 generate friction, which limits the fixing device to a fixed position.

[0048] As a further embodiment, the fastening portion 3 is annular or a block connected into an annular shape, and the curvature of the extrusion surface 7 matches the inner side surface of the prefabricated pile body 4 .

[0049] It should be noted that the fastening portion 3 is configured as a ring or annular block, so that the surroundings of the fixing device are subjected to greater friction, so that the fixing device is subjected to uniform force and can be more firmly fixed in the prefabricated pile body 4. The curvature of the extrusion surface 7 is matched with the inner side of the prefabricated pile body 4, so as to increase the tightness of the fit between the extrusion surface 7 and the prefabricated pile body 4 and increase the stability of the device.

[0050] As a further implementation manner, the height of the extrusion surface 7 is greater than the height of the adjustable portion 2 , and the adjustable portion 2 is located at the midline position of the extrusion surface 7 .

[0051] It should be noted that setting the height of the extrusion surface 7 greater than the height of the adjustable portion 2 greatly increases the contact area between the fixing device and the prefabricated pile body 4, and the adjustable portion 2 is set at the midline position of the extrusion surface 7, that is, the extrusion surface 7 extends upward and downward from the midline position, increasing the upward and downward friction forces, and keeping the adjustable portion 2 at the midline position.

[0052] As a further embodiment, Figure 7 and Figure 8 As shown, an elastic pit 9 is provided on the extrusion surface 7, and an extrusion protrusion 10 is provided on the extrusion portion 8. The elastic pit 9 is arranged on the outer surface of the extrusion surface 7, and the elastic pit 9 is recessed toward one side of the extrusion portion 8. The extrusion protrusion 10 is arranged on the extrusion portion 8, and each of the extrusion protrusions 10 corresponds to one elastic pit 9, so that when the extrusion portion 8 is inflated, the extrusion protrusion 10 is inflated to squeeze the elastic pit 9 outward to contact the inner wall of the prefabricated pile body 4.

[0053] It should be noted that, by arranging elastic pits 9 on the extrusion surface 7, the elastic pits 9 are made of elastic rubber or plastic, and an extrusion protrusion 10 is arranged corresponding to each elastic pit 9, and the extrusion protrusion 10 is arranged on the extrusion part 8. When the extrusion part 8 is inflated, the extrusion protrusion 10 is lifted up by the pressure, and the elastic pit 9 is squeezed, so that the inner surface of the pit is closely attached to the inner wall of the prefabricated pile body 4, thereby increasing the contact area of ​​the inner wall and increasing the friction.

[0054] Of course, the present application may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present application.

Claims

1. A nozzle fixing device for a prefabricated pile body, comprising a fixing portion (1) and an adjustable portion (2), wherein the adjustable portion (2) is arranged around the fixing portion (1), the adjustable portion (2) is adjustable in size, and a through hole is provided at the center of the fixing portion (1) for fixing the nozzle, characterized in that: Also includes: A fastening portion (3), the fastening portion (3) being arranged on the outside of the adjustable portion (2) and being used to connect the adjustable portion (2) and the prefabricated pile body (4), the outer side surface of the fastening portion (3) being in line with the inner side wall of the prefabricated pile body (4) and being used to increase the contact area between the fastening portion (3) and the prefabricated pile body (4).

2. The sprinkler head fixing device for prefabricated piles according to claim 1, characterized in that: The fixed part (1) is a circular plate, and the adjustable part (2) surrounds the fixed part (1).

3. The sprinkler head fixing device for prefabricated piles according to claim 1, characterized in that: The fixing part (1) is an inflatable plate, and an inflatable frame (5) is arranged inside the fixing part (1), and the inflatable frame radiates outwards from the center of the fixing part (1).

4. The sprinkler head fixing device for prefabricated piles according to claim 1, characterized in that: The adjustable part (2) is an annular air-filled bag, which is fixed around the fixed part (1), and an air tube (6) is provided on the adjustable part (2).

5. The sprinkler head fixing device for prefabricated piles according to claim 1, characterized in that: The adjustable part (2) is an internally connected inflatable block, a plurality of the inflatable blocks are connected in a ring, the inflatable blocks surround the fixed part (1), and the size of the entire fixing device is adjusted by inflation and deflation, and an air pipe (6) is provided on the inflatable block.

6. The sprinkler head fixing device for prefabricated piles according to claim 1, characterized in that: The fastening portion (3) is arranged around the outside of the adjustable portion (2), and the fastening portion (3) comprises an extrusion surface (7) and an extrusion portion (8). The extrusion portion (8) is an air bag, and the extrusion surface (7) is arranged in an arc shape on the side of the extrusion portion (8) and is used to fix the entire device tightly against the inner wall of the prefabricated pile body (4) when inflated.

7. The sprinkler head fixing device for prefabricated piles according to claim 6, characterized in that: The fastening portion (3) is annular or a block connected into an annular shape, and the curvature of the extrusion surface (7) matches the inner side surface of the prefabricated pile body (4).

8. The sprinkler head fixing device for prefabricated piles according to claim 7, characterized in that: The height of the extrusion surface (7) is greater than the height of the adjustable portion (2), and the adjustable portion (2) is located at the midline of the extrusion surface (7).

9. The sprinkler head fixing device for prefabricated piles according to claim 8, characterized in that: An elastic pit (9) is provided on the extrusion surface (7), and an extrusion protrusion (10) is provided on the extrusion portion (8). The elastic pit (9) is provided on the outer surface of the extrusion surface (7), and the elastic pit (9) is recessed toward one side of the extrusion portion (8). The extrusion protrusion (10) is provided on the extrusion portion (8), and each extrusion protrusion (10) corresponds to one elastic pit (9). When the extrusion portion (8) is inflated, the extrusion protrusion (10) is inflated to extrude the elastic pit (9) outwardly to contact the inner side wall of the prefabricated pile body (4).

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