Novel reserved PE drainage pipe inner support protection device and construction method

Abstract

The invention discloses a novel reserved PE drainage pipe inner support protection device and a construction method, and the device comprises an adjusting assembly which is provided with a cover plate and a supporting plate movably connected with the cover plate through a bolt; the supporting assembly comprises a sleeve which sleeves the bolt and is fixedly connected with the cover plate, and a plurality of supporting plates which are movably connected with the sleeve through connecting rods; the lower end face of the supporting plate is carried on the supporting plate. The driving bolt moves upwards to drive the supporting plate to ascend, and the supporting plate pushes the supporting plate to be gradually unfolded outwards so as to abut against and support the inner wall of the PE pipe. The driving bolt moves downwards to drive the supporting plate to descend, and the supporting plate loosens the supporting plate to enable the supporting plate to contract inwards so as to loosen contact with the inner wall of the PE pipe. The overall rigidity of the PE pipe can be improved, the PE pipe can be protected against bending deformation caused by external collision, the device can adapt to PE pipes with different diameters through extension or contraction, operation is convenient and fast, disassembly and assembly are safe, the adjustable performance is good, the repeated utilization rate is high, construction is easy and convenient, efficiency is high, environment friendliness is achieved, and cost is saved.

Description

Technical Field

[0001] This application belongs to the technical field of construction engineering auxiliary equipment, and particularly relates to a new type of reserved PE drainage pipe inner support protection device and construction method. Background Technique

[0002] The development of plastic pipes in China is very rapid, and the quality is constantly improving. Among them, polyethylene (PE) pipes are widely used in building water supply, building drainage, buried drainage pipes, building heating, gas transmission pipes, electrical and telecommunications protection sleeves, industrial pipes, agricultural pipes, etc. due to their own unique advantages. They are mainly used in fields such as urban water supply, urban gas supply, and farmland irrigation.

[0003] After traditional PE pipes are pre-buried and exposed on the ground, there are no protection measures, and they are prone to bending and deformation when subjected to external force collision. The existing protection for PE pipes has the following problems:

[0004] 1. The method of wrapping PE pipes with mortar has a relatively high cost and is a one-time protection. The mortar cannot be reused, resulting in increased costs. After construction, manual maintenance needs to be carried out daily, otherwise the strength cannot be achieved. The mortar has low strength and is prone to fragmentation and cannot protect the PE pipes, and the labor cost is relatively high.

[0005] 2. Wrapping PE pipes with external formwork also requires a large amount of building formwork, and the formwork needs to be manually processed into square boxes before it can be used. While consuming materials, it also requires a certain amount of labor cost; at the same time, the formwork has low stiffness and is easily damaged, and cannot protect the pipeline well.

[0006] 3. Blocking the pipe orifice with plastic film is extremely easy to block and difficult to remove, which is time-consuming and material-consuming.

[0007] How to provide a PE pipe protection device that is convenient to operate and can be reused is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0008] This application provides a new type of reserved PE drainage pipe inner support protection device and construction method, which solves the technical problems that the existing protection devices are not only troublesome to operate, but also time-consuming and laborious, and have high costs.

[0009] To solve at least one of the above technical problems, the technical solution adopted in this application is:

[0010] A new type of reserved PE drainage pipe inner support protection device includes:

[0011] An adjustment component, which is provided with a cover plate and a support plate movably connected to the cover plate by bolts;

[0012] The supporting component includes a sleeve sleeved on the bolt and fixedly connected to the cover plate, and a plurality of support plates movably connected to the sleeve through connecting rods;

[0013] Wherein, the lower end surface of the support plate is placed on the support plate;

[0014] Drive the bolt to move upward to drive the support plate to rise, and the support plate pushes the support plate to gradually expand outwards to abut against and support the inner wall of the PE pipe; drive the bolt to move downward to drive the support plate to descend, and the support plate releases the support plate to enable the support plate to contract inwards to release the contact with the inner wall of the PE pipe.

[0015] Further, the diameter of the cover plate is larger than the outer diameter of the PE pipe; and the diameter of the support plate is smaller than the diameter of the cover plate.

[0016] Further, a support rod is horizontally arranged inwardly at the lower end surface inside each support plate. When the support plate rotates and moves upward, it can drive the support plate to gradually expand outwards through the support rod.

[0017] Further, the length of the support rod is smaller than the radius of the support plate and larger than the radius difference between the maximum expansion state and the minimum contraction state of the support plate.

[0018] Further, the support plate is configured as a long strip plate structure with an arc surface; its height is higher than the height of the sleeve and smaller than the height of the bolt.

[0019] Further, the lower limit position of the lower bottom surface of the support plate is lower than the lower limit position of the support plate.

[0020] Further, the bolt is in threaded or free fit with the inner wall of the sleeve.

[0021] Further, a strip rod is arranged along the height direction on the inner wall surface of the support plate and fixedly connected to it. Both ends of the connecting rod are hinged to the sleeve and the strip rod respectively.

[0022] Further, a handle for driving the bolt is provided on the cover plate, and the handle is detachably fitted with the cover plate.

[0023] Adopt the construction method of a new type of reserved inner support protection device for PE drainage pipes as described above. The steps include:

[0024] First, place the support plate in a contracted state on the support plate;

[0025] Then, control all other components of the entire protection device except the cover plate located below the cover plate to be placed inside the PE pipe, and cover the cover plate on the pipe orifice of the PE pipe to fix its position;

[0026] Fix the hexagonal bolt at the top of the cover plate through the handle sleeve and set it at the top end of the bolt, so that the handle is fitted and connected with the bolt;

[0027] Rotate the handle and make the bolt drive the pallet to move upward while rotating, and the pallet pushes the support plate to gradually unfold outward until all the support plates synchronously abut against the inner wall of the PE pipe; and make the lower part of all the support plates support the inner wall of the PE pipe below the ground, and the upper part of it supports the inner wall of the PE pipe above the ground;

[0028] When the handle cannot be rotated, it means that the support plate has been closely fitted with the inner wall of the PE pipe;

[0029] Remove the handle and prepare for the inner support protection construction of the next group of PE pipes.

[0030] Adopting a novel inner support protection device and construction method for reserved PE drainage pipes designed in this application can not only increase the overall stiffness of the PE pipe, but also protect the PE pipe from bending deformation caused by external collisions. Moreover, the device can adapt to PE pipes with different diameters through extension or contraction, with convenient and fast operation, safe disassembly and assembly, good adjustable performance, high reuse rate, simple and efficient construction, safety and reliability, environmental protection, and better cost savings in construction. Brief Description of the Drawings

[0031] Figure 1 is a perspective view of the inner support protection device for reserved PE drainage pipes in this application;

[0032] Figure 2 is a perspective view of the inner support protection device for reserved PE drainage pipes in this application when viewed from below;

[0033] Figure 3 is a perspective view of the protection device after removing the support plate in this application;

[0034] Figure 4 is a working state diagram of the protection device in this application.

[0035] In the figure:

[0036] 10. Adjusting component 11. Cover plate 12. Bolt

[0037] 13. Pallet 14. Handle 20. Support component

[0038] 21. Sleeve 22. Connecting rod 23. Support plate

[0039] 24. Strut 25. Strip rod 30. PE pipe

[0040] 40. Ground Detailed Description of the Embodiment

[0041] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] This embodiment provides a novel inner support protection device for reserved PE drain pipes. As Figure 1 shown, it includes an adjustment component 10 for adjusting the position of the protection device and a support component 20 for supporting the inner wall of the PE pipe 30. Specifically, the adjustment component 10 is provided with a cover plate 11 and a support plate 13 movably connected to the cover plate 11 by bolts 12; the support component 20 includes a sleeve 21 sleeved on the bolt 12 and fixedly connected to the lower end surface of the cover plate 11, and a plurality of support plates 23 movably connected to the sleeve 21 by connecting rods 22; wherein, the lower end surface of the support plate 23 is placed on the upper end surface of the support plate 13. Driving the bolt 12 to move upward drives the support plate 13 to rise, and the support plate 13 pushes the support plates 23 to gradually expand outwards to abut against and support the inner wall of the PE pipe 30; driving the bolt 12 to move downward drives the support plate 13 to descend, and the support plate 13 releases the support plates 23, enabling the support plates 23 to contract inwards to release the contact with the inner wall of the PE pipe 30. All the PE pipes 30 in the present application are PE drain pipes, and of course, including but not limited to drain pipes, are within the protection scope of this case.

[0043] As Figure 4 shown, in actual operation, the cover plate 11 should be placed at the pipe orifice position of the PE pipe 30, which can not only protect the PE pipe 30 from being blocked, but also be used to cover the pipe orifice to prevent dust or other sundries from falling into the pipe. Preferably, the PE pipe 30 is circular and its diameter is larger than the outer diameter of the PE pipe 30. In order to enable the support plate 13 to move freely up and down inside the PE pipe 30, the diameter of the support plate 13 is not only smaller than the diameter of the cover plate 11, but also smaller than the inner diameter of the PE pipe 30. And it must be ensured that when the support plates 23 are in the minimum contraction state, the outer diameter of the support plates 23 placed on the support plate 13 is still smaller than the inner diameter of the PE pipe 30 to avoid being unable to insert the contracted support plates 23 into the PE pipe 30 during construction.

[0044] As Figure 2 shown, on the inner lower end surface of each support plate 23, there is a horizontally inward-facing alignment rod 24. When the support plate 13 rotates and moves upward, the alignment rod 24 is placed on the upper end surface of the support plate 13 and drives the support plates 23 to gradually expand outwards. Also, when the support plate 13 moves downward, the alignment rod 24 is no longer supported by the support plate 13, so it will drive the support plates 23 to contract as it moves downward with the support plate 13, and the alignment rod 24 placed on the support plate 13 can also improve the stable placement of the support plates 23 when they contract.

[0045] As Figure 4As shown, when supporting and protecting the PE pipe 30, the lower part of the height of the support plate 23 needs to be supported on the inner wall of the PE pipe 30 inside the wall, and the upper part of the height of the support plate 23 needs to be supported on the inner wall of the PE pipe 30 outside the wall. This can not only increase the overall stiffness of the PE pipe, but also protect the PE pipe from bending deformation caused by external collisions. By extending or contracting the support plate 23, it can adapt to the support and protection of PE pipes 30 with different diameters. The operation is convenient and fast, the disassembly and installation are safe, the adjustable performance is good, the reuse rate is high, the construction is simple and efficient, safe and reliable, green and environmentally friendly, and can better save construction costs.

[0046] In this embodiment, the number of the support plates 23 is at least 3, and they are evenly arranged around the sleeve 21 and can be expanded and contracted synchronously. This structure can not only ensure the uniformity of the support force on the PE pipe 30, but also facilitate the installation and disassembly, is convenient to use, has a simple structure, is easier to control, and has a low cost.

[0047] Furthermore, the length of the support rod 24 is less than the radius of the support plate 13 to prevent interference with the outer diameter of the bolt 12 when the support plate 23 is in the minimum contraction state. And the length of the support rod 24 is greater than the radius difference between the maximum expansion state and the minimum contraction state of the support plate 23, so as to ensure that the support plate 23 can be erected on the upper end surface of the support plate 13 regardless of the state of the support plate 23, and maintain the stability of the support plate 23.

[0048] Preferably, the diameter of the support plate 13 is also less than the diameter of the circle surrounded by the support plate 23 in the minimum contraction state. Otherwise, when controlling the bolt 12 to rise and rotate, the rotation of the bolt 12 driving the support plate 13 will conflict with the position of the support plate 23, and the support plate 13 cannot push the support plate 23 to move up while rising and rotating through the support rod 24.

[0049] Furthermore, the support plate 23 is configured as a long plate structure with an arc surface; its height is higher than the height of the sleeve and less than the height of the bolt 12, which is convenient to ensure that the rising height of the bolt 12 can support the stable state when the support plate 23 expands outwards. Preferably, the upward movement height of the bolt 12 is greater than the height change of the support plate 23 from the minimum contraction state to the maximum expansion state, and it is the basic condition for the expansion of the support plate 23 to ensure that it can adapt to PE pipes with different diameters by extension or contraction.

[0050] Furthermore, the bolt 12 and the sleeve 21 can be threadedly matched with the inner wall, so as to ensure the stability of the movement of the bolt 12 when it rises or moves. Of course, the bolt 12 and the sleeve 21 can also be freely matched, that is, the inner cavity of the sleeve 21 is smooth, and the bolt 12 can freely pass through the sleeve 21 for free up and down movement, but the gap range between the outer diameter of the bolt 12 and the inner wall of the sleeve 21 is 2-5 mm, otherwise it will affect the balance of the expansion or contraction of the support plate 23.

[0051] As Figure 3 shown, a strip rod 25 is further provided on the inner wall surface of the support plate 23 along its height direction and fixedly connected thereto. Both ends of the connecting rod 22 are respectively hinged to the sleeve 21 and the strip rod 25. Thus, on the basis of improving the fixing strength of the support plate 23, it is also convenient to load and unload the support plate 23, the operation is convenient and fast, the disassembly and assembly are safe and the adjustable performance is good. Correspondingly, the lower limit position of the lower bottom surface of the support plate 23, that is, the lower limit position of the lower end surface of the strip rod 25, is lower than the lower limit position of the support plate 13, so as to ensure that the support plate 13 can safely move up and down while rotating, and the support rod 24 is carried on the support plate 13 and does not interfere with the strip rod 25.

[0052] Preferably, a handle 14 for driving the bolt 12 to rotate is provided on the cover plate 11, and the handle 14 is detachably matched with the cover plate 11. When it is necessary to adjust the state or position of the support plate 23, the handle 14 is sleeved on the hexagonal bolt head at the top of the bolt 12 for direct operation. When adjustment is not required, the handle 14 can be directly removed, which will not affect the cooperation between the cover plate 11 and the PE pipe, nor will it affect the construction safety.

[0053] Adopt a construction method of a novel inner support protection device for reserved PE drainage pipes as described above. The steps include:

[0054] First, the support plate 23 is in a contracted state, and the support rod 24 is carried on the upper end surface of the support plate 13.

[0055] Then, control all other components located below the cover plate 11 except the cover plate 11 of the entire protection device to be placed inside the PE pipe 30, and cover the cover plate 11 on the pipe orifice of the PE pipe 30 to fix its position.

[0056] The handle 14 is sleeved and fixed on the hexagonal bolt provided at the top end of the bolt 12 in the top of the cover plate 11, so that the handle 14 is in an interference fit with the bolt 12.

[0057] Rotate the handle 14 and make the bolt 12 drive the support plate 13 to move upward while rotating. The support plate 13 pushes the support plate 23 to gradually expand outwards until all the support plates 23 synchronously abut against the inner wall of the PE pipe 30. And the lower section of all the support plates 23 supports the inner wall of the PE pipe 30 below the ground, and the upper section thereof supports the inner wall of the PE pipe 30 above the ground.

[0058] When the handle 14 cannot be rotated, it indicates that the support plate 23 is in close fit with the inner wall of the PE pipe 30.

[0059] Then take away the handle and prepare for the inner support protection construction of the next group of PE pipes 30.

[0060] A new type of reserved PE drainage pipe internal support protection device and construction method designed by this application can not only increase the overall stiffness of the PE pipe, but also protect the PE pipe from bending deformation caused by external collision. Moreover, the device can adapt to PE pipes of different diameters through extension or contraction, with convenient and fast operation, safe disassembly and assembly, good adjustable performance, high reuse rate, simple and efficient construction, safety and reliability, environmental protection, and better saving of construction costs.

[0061] The above has described the embodiments of this application in detail. The above content is only the preferred embodiment of this application and cannot be considered as limiting the scope of implementation of this application. All equivalent changes and improvements made according to the scope of this application should still fall within the scope covered by the patent of this application.

Claims

1. A novel inner support protection device for reserved PE drainage pipes, characterized in that, Comprising: A regulating component, which is provided with a cover plate and a supporting plate movably connected to the cover plate by bolts; A supporting component, including a sleeve sleeved on the bolt and fixedly connected to the cover plate, and a plurality of supporting plates movably connected to the sleeve by connecting rods; Wherein, the lower end surface of the supporting plate is placed on the supporting plate; Drive the bolt to move upward to drive the supporting plate to rise, and the supporting plate pushes the supporting plates to gradually expand outwards to abut against and support the inner wall of the PE pipe; drive the bolt to move downward to drive the supporting plate to descend, and the supporting plate releases the supporting plates to enable the supporting plates to contract inwards to release the contact with the inner wall of the PE pipe.

2. A novel inner support protection device for reserved PE drainage pipes according to claim 1, characterized in that, The diameter of the cover plate is larger than the outer diameter of the PE pipe; and the diameter of the supporting plate is smaller than the diameter of the cover plate.

3. A novel reserved PE drainage pipe inner support protection device according to claim 1 or 2, characterized in that, On the inner lower end surface of each supporting plate, there is a horizontally arranged rod facing inwards. When the supporting plate rotates and moves upward, it can drive the supporting plates to gradually expand outwards through the rod.

4. A novel reserved PE drain pipe inner support protection device according to claim 3, characterized in that, The length of the rod is smaller than the radius of the supporting plate and larger than the radius difference between the maximum expanded state and the minimum contracted state of the supporting plate.

5. A novel reserved PE drainage pipe inner support protection device according to any one of claims 1-2 and 4, characterized in that, The supporting plate is configured as a long plate structure with an arc surface; its height is higher than the height of the sleeve and smaller than the height of the bolt.

6. A novel reserved inner support protection device for PE drainage pipes according to claim 5, characterized in that The lower limit position of the lower bottom surface of the supporting plate is lower than the lower limit position of the supporting plate.

7. A novel reserved inner support protection device for PE drainage pipes according to claim 5, characterized in that, The bolt is in threaded or free fit with the inner wall of the sleeve.

8. A novel reserved inner support protection device for PE drainage pipes according to claim 6 or 7, characterized in that, On the inner wall surface of the supporting plate, there is also a strip rod arranged along its height direction and fixedly connected to it. The two ends of the connecting rod are respectively hinged to the sleeve and the strip rod.

9. A novel reserved inner support protection device for PE drainage pipes according to claim 1, characterized in that, On the cover plate, there is a handle for driving the bolt, and the handle is detachably fitted with the cover plate.

10. A construction method of a new type of reserved PE drainage pipe inner support protection device as described in any one of claims 1-9, characterized in that the steps Comprising: First, place the supporting plates in a contracted state on the supporting plate; Then, control all other components located below the cover plate except the cover plate of the entire protection device to be placed inside the PE pipe, and cover the cover plate at the pipe orifice of the PE pipe to fix its position; fix the handle to the hexagonal bolt arranged at the top end of the bolt in the middle of the top of the cover plate, so that the handle is fitted and connected with the bolt; Rotate the handle and make the bolt drive the supporting plate to rotate and move upward. The supporting plate pushes the supporting plates to gradually expand outwards until all the supporting plates synchronously abut against the inner wall of the PE pipe; and make the lower sections of all the supporting plates support the inner wall of the PE pipe below the ground, and the upper sections support the inner wall of the PE pipe above the ground; When the handle cannot be rotated, it means that the supporting plates are closely fitted with the inner wall of the PE pipe; Remove the handle and prepare for the inner support protection construction of the next group of PE pipes.

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