Pipe roofing construction device

Abstract

The utility model discloses a pipe roofing construction device, which mainly solves the technical problem of how to provide a sufficient supporting effect in a steel pipe, and comprises a main body, a plurality of supporting arm mechanisms are arranged on the outer side of the main body at equal intervals, an adjusting mechanism is arranged in the main body, and each supporting arm mechanism comprises a supporting plate and a telescopic assembly. The supporting plate supports the steel pipe through the telescopic assembly, the telescopic assembly comprises a threaded sleeve and a threaded rod, the supporting plate is fixedly connected to one end of the threaded sleeve, and the threaded sleeve is in threaded connection outside the threaded rod. When a steel pipe is supported, the multiple supporting plates can be adjusted to move outwards at the same time by twisting the rotating disc till all the supporting plates are attached to the inner wall of the steel pipe, the supporting plates can be supported in a multi-angle mode through the supporting plates, and under the condition, the multiple supporting plates which are arranged in a circumferential mode can be evenly distributed in the pipe; therefore, the supporting interval can be reduced, and the sufficient supporting effect on the steel pipe is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe curtain steel pipe support, in particular to a pipe curtain construction device. Background Art

[0002] The pipe curtain method is an underground tunnel construction method. Its core lies in using micro-pipe jacking technology to push steel pipes or pipes made of other materials around the proposed underground building. These pipes are connected by locks and injected with waterproof materials to form an impermeable underground space in which the underground building can be built.

[0003] After the steel pipe is pushed in, concrete can be poured into it to maintain the strength of the pipe body. However, since steel pipes are often pushed into the ground one by one in the form of pipe sections, it is necessary to confirm the position and height between the pipe sections and the sealing and stability of the connections before this. Therefore, a temporary support structure needs to be set up inside the pipeline to ensure that the pipeline will not be displaced or deformed before pouring.

[0004] A search revealed a Chinese utility model patent with publication number CN209163810U, which discloses a new pipe support device for pipe curtain construction. The device comprises a support body, wherein the support body comprises a support column, the upper end of the support column being connected to an arched support portion, the lower end of the support column being connected to an inverted arched support portion via a telescopic component, the arched support portion being adapted to the arched pipe arc, and the inverted arched support portion being adapted to the inverted arched pipe arc. This application provides support inside the pipe by providing two upper and lower curved plates. However, relying solely on support in the upper and lower directions or the left and right directions cannot fully withstand pressure from all directions outside the steel pipe, especially since a large support gap is left between the two curved plates, making it impossible to provide sufficient support inside the steel pipe. Utility Model Content

[0005] In view of the above-mentioned prior art, the present invention provides a pipe curtain construction device, the main technical problem to be solved is how to provide sufficient support effect inside the steel pipe.

[0006] To achieve the above-mentioned purpose, the technical solution of the embodiment of the utility model is implemented as follows:

[0007] A pipe curtain construction device includes a main body, a plurality of support arm mechanisms are equidistantly provided on the outside of the main body, and an adjustment mechanism is provided inside the main body, the support arm mechanism includes a support plate and a telescopic assembly, the support plate supports the steel pipe through the telescopic assembly, the telescopic assembly includes a threaded sleeve and a threaded rod, the support plate is fixedly connected to one end of the threaded sleeve, and the threaded sleeve is threadedly connected to the outside of the threaded rod, the adjustment mechanism is used to synchronously adjust the position of each support plate, the adjustment mechanism includes a driving wheel and a plurality of driven wheels, the driven wheels are meshed with the driving wheel, and the number of driven wheels is the same as that of the threaded rods and corresponds one to one.

[0008] Further, a first through hole is provided in the middle of the side wall of the main body, and a rotating rod is rotatably connected to the main body at the first through hole. The driving wheel is connected to the outer part of the rod body of the rotating rod inside the main body by a key.

[0009] Further, one end of the rotating rod outside the main body is fixedly connected with a turntable, and a sleeve is fixedly connected to the outer side of the side wall of the main body at the outside of the rotating rod.

[0010] Further, a plurality of second through holes are equidistantly provided on the outer side of the main body. The number of the threaded rods is the same as that of the second through holes and they correspond one by one. The threaded rods are rotatably connected to the main body at the second through holes.

[0011] Further, the driven wheel is connected to one end of the threaded rod inside the main body by a key. Both the driving wheel and the driven wheel are bevel gears.

[0012] Further, a guide cylinder is fixedly connected to the outer side of the main body at the outside of each second through hole. The guide cylinder is sleeved on the outside of the threaded sleeve, and a chute is provided on the outer side of the guide cylinder.

[0013] Further, a slider is fixedly connected to the outside of the threaded sleeve. The slider is slidably connected to the guide cylinder at the chute.

[0014] Further, a gear is connected to the outside of the rotating rod at the top of the sleeve by a key. A dial is rotatably connected to the top of one side of the sleeve.

[0015] Further, a torsion spring is fixedly connected between the dial and the sleeve, and a tooth block is fixedly connected to one side of the top of the dial. The tooth block is engaged with the gear.

[0016] Further, a plurality of ribs are equidistantly fixedly connected to the outer side of the support plate. The material of the ribs is rubber.

[0017] The beneficial effects of the utility model are as follows:

[0018] 1. When the device is placed in a steel pipe for supporting it, by twisting the turntable, several support plates can be adjusted to move outwards simultaneously until all the support plates are in contact with the inner wall of the steel pipe. The former can support the latter in a multi-angle form. In this case, several support plates arranged in a circular pattern can be evenly distributed in the pipeline, so the support interval can be reduced to ensure the full support effect on the steel pipe. In addition, since the drive between the threaded rod and the threaded sleeve has a reverse self-locking effect, after adjusting the position of the support plate by using the two, the stability can be ensured, and further the stable support effect of the device on the steel pipe can be ensured. In addition, by adjusting the position of the support plate, the device can also be applied to pipe curtains of various calibers and provide sufficient bearing capacity to ensure its safety.

[0019] 2. After adjusting the position of the support plate by turning the turntable, the dial can push the tooth block into contact with the gear under the elastic force of the torsion spring. At this time, relative rotation between the rotating rod and the sleeve is no longer possible, and the position of the support plate cannot be further adjusted by turning the turntable. In this way, accidental contact with the turntable, which may cause loosening between the support plate and the steel pipe, can be prevented, and thus the stable support effect of the device on the steel pipe can be further ensured.

[0020] 3. By providing rib strips made of rubber material and using the rib strips to contact the inner wall of the steel pipe instead of the support plate, not only can the friction between the two be increased to ensure stable support, but the rib strips can also cushion between the two to ensure the safety of the support. Description of the Drawings

[0021] Figure 1 is a perspective view of a pipe curtain construction device in Embodiment 1 of the present application;

[0022] Figure 2 is a cross-sectional view of the main body of a pipe curtain construction device in Embodiment 1 of the present application;

[0023] Figure 3 is a cross-sectional view of the guide tube of a pipe curtain construction device in Embodiment 1 of the present application;

[0024] Figure 4 is a perspective view of a pipe curtain construction device in Embodiment 2 of the present application.

[0025] Explanation of the Reference Numerals in the Drawings:

[0026] Main body 1, guide tube 2, threaded sleeve 3, slider 301, support plate 4, sleeve 5, rotating rod 6, turntable 7, gear 8, tooth block 9, torsion spring 10, dial 11, driving wheel 12, threaded rod 13, driven wheel 14, rib strip 15. Detailed Embodiments

[0027] The technical solution of the present invention will be further described in detail below in conjunction with the drawings in the specification and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0028] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "inner", "outer", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0029] Embodiment 1

[0030] Referring to the attached Figures 1 - 3 , this application provides a pipe curtain construction device, including a main body 1. The main body 1 is in the shape of a hollow disc. A number of arm mechanisms are equidistantly arranged on the outer side of the main body 1. The equidistant arrangement of the arm mechanisms can avoid leaving a large support interval on the inner wall of the steel pipe, but instead support the inner wall of the steel pipe at a smaller support interval from multiple angles and more fully. And an adjustment mechanism is provided inside the main body 1. The arm mechanism includes a support plate 4 and a telescopic assembly. The support plate 4 supports the steel pipe through the telescopic assembly. The telescopic assembly includes a threaded sleeve 3 and a threaded rod 13. The transmission between the two has a reverse self-locking effect. Therefore, the two can stably support the support plate 4, and the support plate 4 can stably support the steel pipe. The support plate 4 is fixedly connected to one end of the threaded sleeve 3. Therefore, when the threaded rod 13 rotates, the support plate 4 can be moved through the threaded sleeve 3 to ensure that the support plate 4 can fit the inner wall of the steel pipe. The threaded sleeve 3 is threadedly connected to the outside of the threaded rod 13. The adjustment mechanism is used to synchronously adjust the position of each support plate 4. The adjustment mechanism includes a driving wheel 12 and a number of driven wheels 14. The driven wheels 14 are meshed with the driving wheel 12. When the driving wheel 12 rotates, it can drive all the driven wheels 14 to rotate synchronously. At this time, the driven wheels 14 drive the threaded rods 13 to make the threaded sleeves 3 push the support plates 4 to move, thereby realizing the synchronous adjustment of the positions of all the support plates 4. In this case, each support plate 4 can have the same degree of fit with the inner wall of the steel pipe. Therefore, the support effect of the support plate 4 on the steel pipe can be ensured. The number of the driven wheels 14 is the same as that of the threaded rods 13 and they correspond one by one.

[0031] Preferably, a first through hole is opened in the middle of the side wall of the main body 1, and a rotating rod 6 is rotatably connected to the main body 1 at the first through hole. The driving wheel 12 is key-connected to the outside of the rod body of the rotating rod 6 inside the main body 1. One end of the rotating rod 6 outside the main body 1 is fixedly connected to a turntable 7. A sleeve 5 is fixedly connected to the side wall of the main body 1 outside the rotating rod 6. The user can hold the sleeve 5 with one hand and twist the turntable 7 with the other hand. At this time, the turntable 7 can drive the relative rotation between the rotating rod 6 and the sleeve 5, that is, the relative rotation between the driving wheel 12 and the main body 1. Therefore, the driven wheels 14 can be driven to smoothly expand the support plates 4 inside the steel pipe.

[0032] Preferably, a number of second through holes are equidistantly formed on the outer side of the main body 1. The number of the threaded rods 13 is the same as that of the second through holes and they correspond to each other one by one. The threaded rods 13 are rotatably connected to the main body 1 at the second through holes. The driven wheel 14 is connected to one end of the threaded rod 13 inside the main body 1 by a key connection. Both the driving wheel 12 and the driven wheel 14 are bevel gears. Through the transmission of the bevel gears, the effect of rotating direction change can be achieved, that is, the rotation in the axial direction of the steel pipe is converted into the rotation and movement in its radial direction. In this way, the user can operate the turntable 7 outside the steel pipe and make the support plate 4 unfold inside the steel pipe.

[0033] Preferably, a guide cylinder 2 is fixedly connected to the outer side of the main body 1 at the outside of each second through hole. The guide cylinder 2 is sleeved on the outside of the threaded sleeve 3, and a chute is formed on the outer side of the guide cylinder 2. A slider 301 is fixedly connected to the outside of the threaded sleeve 3. The slider 301 is slidably connected to the guide cylinder 2 at the chute. The guide cylinder 2 can limit and guide the threaded sleeve 3 through the slider 301 and the chute, that is, limit the rotation of the threaded sleeve 3 so that it can only move linearly inside the guide cylinder 2. This can ensure that the arc-shaped support plate 4 moves and unfolds along a straight line, and further ensure the fitting effect between the support plate 4 and the inner wall of the steel pipe. An infrared sensor can be arranged on the surface of the support plate 4 to monitor the distance between the support plate 4 and the inner wall of the steel pipe, so as to ensure the fitting effect during support.

[0034] Preferably, a gear 8 is connected to the outside of the rotating rod 6 at the top of the sleeve 5 by a key connection. A dial 11 is rotatably connected to the top side of one side of the sleeve 5. A torsion spring 10 is fixedly connected between the dial 11 and the sleeve 5. Through the elastic force of the torsion spring 10, the dial 11 can be kept in a state of pushing and engaging the tooth block 9 with the gear 8. In this case, the tooth block 9 can limit the rotation of the rotating rod 6 by engaging with the gear 8. Therefore, the position of the support plate 4 cannot be further adjusted in this case, and the support plate 4 can stably support the steel pipe, preventing the loosening between the support plate 4 and the inner wall of the steel pipe caused by accidentally touching the turntable 7. Moreover, a tooth block 9 is fixedly connected to one side of the top of the dial 11. The tooth block 9 is engaged with the gear 8, and the dial 11 is in a zigzag shape.

[0035] Working principle: When using this device, the device can be placed inside the steel pipe along the axis of the steel pipe. Then, while holding the sleeve 5 with one hand and pressing the dial 11, turn the turntable 7 with the other hand. At this time, since the dial 11 will drive the tooth block 9 to deflect and separate from the gear 8 when pressed, the rotation of the rotating rod 6 and the gear 8 will not be restricted. Therefore, when turning the turntable 7, the driving wheel 12 can be driven to rotate through the rotating rod 6. The driving wheel 12 can drive the threaded rod 13 to rotate through the driven wheel 14. Under the guiding and limiting action of the slider 301, the rotation of the threaded rod 13 can cause the threaded sleeve 3 to move in the guiding cylinder 2, and the threaded sleeve 3 can drive the support plate 4 to move. Therefore, the position of the support plate 4 can be adjusted so that all the support plates 4 move outwards simultaneously. When the support plate 4 fits against the inner wall of the steel pipe, this device can be used to support the steel pipe inside it;

[0036] After the position of the support plate 4 is adjusted appropriately, the dial 11 can be released. At this time, the torsion spring 10 will cause the dial 11 to deflect in the reverse direction to return to its original state due to its own elastic force. Therefore, the dial 11 will push the tooth block 9 to engage with the gear 8 again. At this time, the rotation of the gear 8 is restricted, so the position of the support plate 4 cannot be further adjusted by using the turntable 7, thereby ensuring the stability of its support for the steel pipe.

[0037] Embodiment 2

[0038] Refer to the attached Figure 4 , this application provides a pipe roof construction device. Compared with Embodiment 1, in order to support the steel pipe more stably and safely, a plurality of ribs 15 are fixedly connected at equal intervals on the outer side of the support plate 4. The material of the ribs 15 is rubber. The rubber ribs 15 can be used to contact the inner wall of the steel pipe instead of the support plate 4. Therefore, the friction between the two can be enhanced, and unnecessary relative movement between the two can be prevented. In addition, the soft characteristic of the rubber material can also prevent the support plate 4 from over-extruding the steel pipe and leaving indentations on its inner wall.

[0039] Working principle: When using this device to support the steel pipe inside it, the rubber ribs 15 can contact the inner wall of the steel pipe instead of the support plate 4. In this case, the ribs 15 can not only increase the friction between the two, but also play a cushioning effect between the two. Therefore, the stability and safety of the support process can be ensured.

[0040] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A pipe roof construction device, comprising a main body (1), characterized in that, A number of arm mechanisms are equidistantly arranged on the outer side of the main body (1), and an adjusting mechanism is arranged inside the main body (1). The arm mechanism includes a support plate (4) and a telescopic assembly. The support plate (4) supports a steel pipe through the telescopic assembly. The telescopic assembly includes a threaded sleeve (3) and a threaded rod (13). The support plate (4) is fixedly connected to one end of the threaded sleeve (3), and the threaded sleeve (3) is threadedly connected to the outside of the threaded rod (13). The adjusting mechanism is used to synchronously adjust the positions of each support plate (4). The adjusting mechanism includes a driving wheel (12) and a number of driven wheels (14). The driven wheels (14) are meshed with the driving wheel (12), and the number of the driven wheels (14) is the same as that of the threaded rods (13) and they are in one-to-one correspondence.

2. The pipe roof construction device according to claim 1, characterized in that, A first through hole is formed in the middle of the side wall of the main body (1), and a rotating rod (6) is rotatably connected to the main body (1) at the first through hole. The driving wheel (12) is connected to the outer part of the rod body of the rotating rod (6) inside the main body (1) through a key connection.

3. The pipe curtain construction device according to claim 2, characterized in that, One end of the rotating rod (6) outside the main body (1) is fixedly connected to a turntable (7), and a sleeve (5) is fixedly connected to the side wall of the main body (1) outside the rotating rod (6).

4. The pipe roof construction device according to claim 3, characterized in that, A number of second through holes are equidistantly formed on the outer side of the main body (1). The number of the threaded rods (13) is the same as that of the second through holes and they are in one-to-one correspondence. The threaded rod (13) is rotatably connected to the main body (1) at the second through hole.

5. The pipe curtain construction device according to claim 4, characterized in that, The driven wheel (14) is connected to one end of the threaded rod (13) inside the main body (1) through a key connection. Both the driving wheel (12) and the driven wheels (14) are bevel gears.

6. The pipe curtain construction device according to claim 5, wherein, A guide cylinder (2) is fixedly connected to the outer side of the main body (1) at the outside of each second through hole. The guide cylinder (2) is sleeved on the outside of the threaded sleeve (3), and a chute is formed on the outer side of the guide cylinder (2).

7. The pipe curtain construction device according to claim 6, characterized in that, A slider (301) is fixedly connected to the outside of the threaded sleeve (3). The slider (301) is slidably connected to the guide cylinder (2) at the chute.

8. A pipe curtain construction device according to claim 7, characterized in that, A gear (8) is connected to the outer part of the rotating rod (6) at the top of the sleeve (5) through a key connection. A dial (11) is rotatably connected to one side of the top of the sleeve (5).

9. A pipe roof construction device according to claim 8, characterized in that, A torsion spring (10) is fixedly connected between the dial (11) and the sleeve (5), and a tooth block (9) is fixedly connected to one side of the top of the dial (11). The tooth block (9) is meshed with the gear (8).

10. The pipe roof construction device according to claim 1, characterized in that, A number of ribs (15) are equidistantly fixedly connected to the outer side of the support plate (4). The material of the ribs (15) is rubber.

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