Plastic inspection well protection device
By designing a plastic inspection well protection device for screws, adjustment plates and support components, the problems of wellbore deformation and unstable fixation of wooden formwork are solved, and anti-deformation and safety protection of plastic inspection wells are achieved, and it is suitable for inspection wells of various specifications.
Patent Information
- Application Number
- CN202422331094.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The wellbore of the plastic inspection well is prone to deform when the backfill soil is compacted, and the wooden formwork is not firmly fixed, which poses a safety hazard.
A protective device including a screw, an adjustment plate and a support assembly is designed to support the plastic inspection wellbore through the support assembly to prevent deformation and to secure the wooden formwork using formwork and fixing nuts to ensure that it does not shift.
Effectively prevent the plastic inspection wellbore from deforming under backfill soil compaction, while ensuring that the wooden formwork is firmly fixed and avoiding safety hazards. It is suitable for inspection wells of different specifications and diameters.
Smart Images

Figure CN223305137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a plastic inspection well protection device. Background Art
[0002] At present, most outdoor rainwater and sewage inspection wells in construction parks are made of plastic. The well seat is placed in a pre-excavated foundation pit. The well seat foundation is simply compacted with plain soil. The well seat and the well shaft are connected with a socket joint. The well shaft and the surrounding soil have no supporting structure. When the existing technology backfills the soil around the inspection well and compacts it, the lateral pressure of the backfill soil on the inspection well can easily cause the inspection well to deform, because there is no supporting structure between the inspection well and the surrounding soil. Rework wastes materials and increases construction costs. At the same time, the inspection well is protected by cast iron manhole covers, composite manhole covers, etc., which are prone to theft. Therefore, wooden formwork is often used to cover the inspection well opening to protect it. However, there is a disadvantage that the wooden formwork is not firmly fixed. Under the surrounding mechanical vibration or adverse conditions (such as strong winds, heavy rain, etc.), the wooden formwork may shift and loosen, thereby losing its protective effect on the inspection well, posing a safety hazard. Summary of the Invention
[0003] In order to solve the problems in the prior art that the shaft of a plastic inspection well is easily deformed and the wooden formwork is not firmly fixed when the backfill soil around the inspection well is compacted, the utility model provides a plastic inspection well protection device, which can effectively protect the shaft of the plastic inspection well from deformation, thereby avoiding the deformation of the shaft of the plastic inspection well due to the lateral pressure of the backfill soil compaction; at the same time, it can also effectively fix the wooden formwork, thereby ensuring that the purpose of protecting the plastic inspection well opening with the wooden formwork is achieved.
[0004] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a plastic inspection well protection device, comprising a screw, an adjustment plate, and a plurality of support assemblies, wherein the adjustment plate comprises an upper adjustment plate and a lower adjustment plate slidably arranged on the screw, the upper and lower adjustment plates having the same size and structure and corresponding to each other up and down, the upper and lower adjustment plates are movably connected to support rods on all sides, and one end of the two support rods corresponding to each other up and down is movably connected to the support assembly. By placing the device in the plastic inspection well shaft, and with the cooperation of the upper and lower adjustment plates and the support rods, the support assembly supports the inner side wall of the plastic inspection well shaft, thereby protecting the plastic inspection well shaft from deformation under the lateral pressure of backfill soil.
[0005] The support assembly includes a side top plate and a square steel tube. The end of the support rod, distal from the screw rod, is flexibly connected to the side top plate. The square steel tube is positioned outside the side top plate. The support rod is flexibly connected to the side top plate, upper adjustment plate, and lower adjustment plate, respectively, enabling the device to accommodate plastic inspection wells of varying sizes and diameters.
[0006] The screw rod is also fitted with a template positioned above the upper adjustment plate. Adjustment nuts are also installed on the screw rod to control the position of the upper and lower adjustment plates. The template protects the plastic manhole opening, and the adjustment nuts control the position of the upper and lower adjustment plates, ensuring that the support assembly contacts the inner wall of the plastic manhole.
[0007] Furthermore, each of the upper and lower adjustment plates includes a sliding plate having a circular hole at its center. The sliding plate is slidably mounted on the screw rod through the circular hole. Fixed blocks (1) are fixedly mounted around the sliding plate, and connecting bolts (1) are vertically mounted on the fixing blocks (1). The circular hole allows the sliding plate to slide on the screw rod to adjust the spacing between the upper and lower adjustment plates. The connecting bolts (1) are used to connect to the support rod.
[0008] Furthermore, two fixing blocks are symmetrically provided on the upper and lower sides of the side top plate, and two connecting bolts are vertically provided on the two fixing blocks, and the two connecting bolts are used to connect with the support rod.
[0009] Furthermore, rotating nuts are fixedly provided at both ends of the support rod, and the two rotating nuts are respectively rotatably sleeved on the connecting bolt 1 of the adjustment plate and the connecting bolt 2 of the side top plate. By rotating the nuts, the support rod is movably connected to the connecting bolt 1 and the connecting bolt 2, thereby facilitating the adjustment of the distance between the upper adjustment plate and the lower adjustment plate, and the distance between the two corresponding support components.
[0010] Furthermore, the inner diameter of the rotating nut is larger than the diameters of the first and second connecting bolts; the first connecting bolt is threadedly connected to the first limiting nut, and the second connecting bolt is threadedly connected to the second limiting nut. The first limiting nut acts as a limiter for the rotating nut mounted on the first connecting bolt, and the second limiting nut acts as a limiter for the rotating nut mounted on the second connecting bolt.
[0011] Furthermore, a fixing nut is threadedly connected to the screw rod, and the fixing nut is located above the template. The template is fixed by the fixing nut to prevent the template from being displaced and loosened.
[0012] Furthermore, the upper surface of the upper adjustment plate and the upper and lower surfaces of the lower adjustment plate are provided with the adjusting nuts, and the adjusting nuts are threadedly connected to the screw, wherein the adjusting nuts on the upper and lower surfaces of the lower adjustment plate limit the position of the lower adjustment plate, and the adjusting nuts on the upper surface of the upper adjustment plate can limit the upward movement of the upper adjustment plate on the screw to ensure that the support assembly is pushed to the inner side of the wellbore of the plastic inspection tube, thereby supporting the wellbore of the plastic inspection tube.
[0013] Through the above technical solution, the beneficial effects of the utility model are:
[0014] The utility model has a reasonable structure and good use effect. It can effectively protect the plastic inspection well shaft from deformation and avoid the deformation of the plastic inspection well shaft due to the lateral pressure of the backfill soil compaction; at the same time, it can also play a role in safety protection for the plastic inspection well hole, and can effectively fix the template to avoid displacement and loosening of the template, thereby ensuring that the template plays a protective role for the plastic inspection well hole; and it has a wide range of applications and can be used for plastic inspection wells of different specifications and diameters.
[0015] The utility model is placed in the plastic inspection well shaft. By adjusting the distance between the upper adjustment plate and the lower adjustment plate, and with the cooperation of the upper adjustment plate, the lower adjustment plate and the support rod, the square steel pipe of the support assembly is pushed to the inner wall of the plastic inspection well shaft, thereby providing support for the inner wall of the plastic inspection well shaft, thereby protecting the plastic inspection well shaft from deformation under the lateral pressure of backfill soil.
[0016] The utility model can change the spacing between two corresponding support components by changing the spacing between the upper adjustment plate and the lower adjustment plate, thereby achieving the effect of being suitable for plastic inspection wells of different specifications and diameters; the adjusting nuts on the upper and lower surfaces of the lower adjustment plate limit the position of the lower adjustment plate; the adjusting nuts on the upper surface of the upper adjustment plate limit the upward movement of the upper adjustment plate on the screw to ensure that the square steel pipe of the support component is pushed against the inner wall of the wellbore of the plastic inspection well.
[0017] The utility model protects the plastic inspection well opening by using a template sleeved on a screw rod, and fixes the template by using a fixing nut above the template, thereby achieving the effect of preventing the template from shifting and loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the structure of a plastic inspection well protection device of the utility model. Figure 1 ;
[0019] Figure 2 This is a schematic diagram of the structure of a plastic inspection well protection device of the utility model. Figure 2 ;
[0020] Figure 3 It is a structural diagram of the adjustment plate of the utility model;
[0021] Figure 4 This is a structural diagram of the support rod and the rotating nut of the utility model;
[0022] Figure 5 yes Figure 1 Schematic diagram of the enlarged structure at A in the middle;
[0023] Figure 6 yes Figure 2 Schematic diagram of the enlarged structure at point B in the middle.
[0024] The numbers in the accompanying drawings are: 1 is a screw, 2 is a sliding plate, 3 is a round hole, 4 is a fixing block 1, 5 is a connecting bolt 1, 6 is a limiting nut 1, 7 is an adjusting nut, 8 is a side top plate, 9 is a fixing block 2, 10 is a connecting bolt 2, 11 is a limiting nut 2, 12 is a square steel pipe, 13 is a support rod, 14 is a rotating nut, 15 is a template, and 16 is a fixing nut. DETAILED DESCRIPTION
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0026] like Figures 1 to 6 A plastic inspection well protection device is shown, comprising a screw 1, an adjustment plate, and a plurality of support assemblies. The adjustment plate comprises an upper adjustment plate and a lower adjustment plate slidably disposed on the screw 1. The upper and lower adjustment plates are of identical size and structure and correspond to each other vertically. Support rods 13 are movably connected to each of the upper and lower adjustment plates. One end of each of the two corresponding support rods 13 is movably connected to the support assembly. In this embodiment, there are four support assemblies and eight support rods 13. One end of each support rod 13 is rotatable relative to the upper or lower adjustment plate and the other end is rotatable relative to the support assembly. Each support assembly is connected to two support rods 13 so that the support assembly can be pressed against the inner wall of the plastic inspection well shaft. By adjusting the spacing between the upper and lower adjustment plates, the spacing between the corresponding two support assemblies can be adjusted to ensure that the support assembly presses against the inner wall of the plastic inspection well shaft to support the plastic inspection well shaft. The device is suitable for plastic inspection wells of different diameters, and is suitable for plastic inspection wells with a diameter of ≤1000mm.
[0027] The support assembly includes a side top plate 8 and a square steel tube 12. The end of the support rod 13 away from the screw rod 1 is movably connected to the side top plate 8. The square steel tube 12 is arranged on the outside of the side top plate 8. In this embodiment, the square steel tube 12 is tied and fixed to the outside of the side top plate 8. The length of the square steel tube 12 is greater than the length of the side top plate 8, and the plastic inspection well shaft is supported by the square steel tube 12.
[0028] The screw rod 1 is also fitted with a template 15 positioned above the upper adjustment plate; the screw rod 1 is also provided with an adjustment nut 7 for limiting the position of the upper and lower adjustment plates. In this embodiment, a through-hole matching the screw rod 1 is provided at the center of the template 15. Once the support assembly has provided support for the plastic manhole shaft, the template 15 is fitted over the screw rod 1. The template 15 then moves downward on the screw rod 1 to the top of the plastic manhole, protecting the opening.
[0029] Both the upper and lower adjustment plates include a sliding plate 2 with a circular hole 3 defined at its center. The sliding plate 2 slides over the threaded rod 1 through the circular hole 3. Fixed blocks 4 are fixedly mounted around the perimeter of the sliding plate 2, with connecting bolts 5 vertically mounted on the fixed blocks 4. In this embodiment, the circular holes 3 allow the upper and lower adjustment plates to move on the threaded rod 1 to adjust the spacing between them. There are four fixed blocks 4, each welded to the sliding plate 2. The connecting bolts 5 are threadedly connected to the fixed blocks 4.
[0030] The side top plate 8 is symmetrically provided with fixing blocks 9 on the upper and lower sides, and connecting bolts 10 are vertically provided on the fixing blocks 9. In this embodiment, there are two fixing blocks 9, which are welded to the side top plate 8, and the connecting bolts 10 are threadedly connected to the fixing blocks 9.
[0031] A rotating nut 14 is fixedly mounted at each end of the support rod 13. The two rotating nuts 14 are rotatably mounted on the first connecting bolt 5 of the adjustment plate and the second connecting bolt 10 of the side top plate 8. In this embodiment, the rotating nuts 14 cooperate with the first connecting bolt 5 and the second connecting bolt 10 to connect the ends of the support rod 13 to the adjustment plate and the support assembly, respectively, thereby facilitating adjustment of the spacing between the two corresponding support assemblies.
[0032] The inner diameter of the rotating nut 14 is larger than the diameters of the connecting bolt 1 5 and the connecting bolt 2 10. The connecting bolt 1 5 is threadedly connected to the limiting nut 1 6, while the connecting bolt 2 10 is threadedly connected to the limiting nut 2 11. In this embodiment, the limiting nut 1 6 and the limiting nut 2 11 respectively limit the rotating nut 14 on the connecting bolt 1 5 and the connecting bolt 2 10, thereby preventing the rotating nut 14 from separating from the connecting bolt 1 5 and the connecting bolt 2 10.
[0033] The screw rod 1 is also threadedly connected to a fixing nut 16, which is located above the template 15. In this embodiment, a gasket is placed between the fixing nut 16 and the template 15, which is mounted on the screw rod 1. The template 15 is a wooden template. After the template 15 is mounted on the screw rod 1 and located at the top of the plastic inspection well, the fixing nut 16 is rotated onto the screw rod 1 to secure the template 15.
[0034] Adjustment nuts 7 are provided on the upper and lower surfaces of the upper and lower adjustment plates, and are threadedly connected to the screw 1. In this embodiment, three adjustment nuts 7 are provided, and a spacer, which fits over the screw 1, is positioned between the adjustment nuts 7 and the adjustment plates. The adjustment nuts 7 on the upper and lower surfaces of the lower adjustment plate restrict the position of the lower adjustment plate, while the adjustment nuts 7 on the upper surface of the upper adjustment plate restrict the upward movement of the upper adjustment plate on the screw.
[0035] When the present invention is used, first adjust the distance between the two corresponding support components according to the diameter of the plastic inspection well shaft to ensure that the device can be placed inside the plastic inspection well shaft, that is, pull the upper adjustment plate upward, and the upper adjustment plate drives the side top plate 8 to move through the support rod 13, and the side top plate 8 drives the square steel pipe 12 to move, and the two corresponding side top plates 8 approach each other. After the distance between the two square steel pipes 12 is smaller than the diameter of the plastic inspection well shaft, the device is placed in the plastic inspection well shaft.
[0036] Then loosen the upper adjusting plate, and the upper adjusting plate slides downward on the screw 1. Under the action of the support rod 13, the upper adjusting plate increases the distance between the two corresponding side top plates 8 until the corresponding square steel pipe 12 contacts the inner wall of the plastic inspection well shaft. Continue to press the upper adjusting plate downward until the square steel pipe 12 is in close contact with the inner wall of the plastic inspection well shaft, and then rotate the adjusting nut 7 above the upper adjusting plate downward. Use the adjusting nut 7 to fix the upper adjusting plate, limit the position of the upper adjusting plate to avoid the upper adjusting plate from moving upward on the screw 1, and ensure that the square steel pipe 12 supports and protects the plastic inspection well shaft.
[0037] Then, the template 15 is put on the screw rod 1 so that the template 15 is located at the top of the plastic inspection well shaft, and then the fixing nut 16 is rotated onto the screw rod 1 to fix the template 15.
[0038] The embodiments described above are only preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, any equivalent changes or modifications made according to the technical solutions described in the patent scope of the utility model should be included in the scope of the patent application of the utility model.
Claims
1. A plastic inspection well protection device, characterized in that: It comprises a screw (1), an adjustment plate and a plurality of support components, wherein the adjustment plate comprises an upper adjustment plate and a lower adjustment plate which are slidably arranged on the screw (1), the upper adjustment plate and the lower adjustment plate have the same size and structure and correspond to each other up and down, the upper adjustment plate and the lower adjustment plate are movably connected to support rods (13) on all sides, and one end of two support rods (13) corresponding to each other up and down are movably connected to the support components; The support assembly comprises a side top plate (8) and a square steel tube (12); an end of the support rod (13) away from the screw rod (1) is movably connected to the side top plate (8); and the square steel tube (12) is arranged on the outside of the side top plate (8); The screw rod (1) is also sleeved with a template (15) located above the upper adjustment plate; the screw rod (1) is also provided with an adjustment nut (7) for limiting the positions of the upper adjustment plate and the lower adjustment plate.
2. A plastic inspection well protection device according to claim 1, characterized in that: The upper adjustment plate and the lower adjustment plate both comprise a sliding plate (2), a circular hole (3) is provided at the center of the sliding plate (2), the sliding plate (2) is slidably sleeved on the screw rod (1) through the circular hole (3), and a fixing block (4) is fixedly provided around the sliding plate (2), and a connecting bolt (5) is vertically provided on the fixing block (4).
3. A plastic inspection well protection device according to claim 2, characterized in that: Two fixing blocks (9) are symmetrically provided on the upper and lower sides of the side top plate (8), and two connecting bolts (10) are vertically provided on the two fixing blocks (9).
4. A plastic inspection well protection device according to claim 3, characterized in that: Both ends of the support rod (13) are fixedly provided with a rotating nut (14), and the two rotating nuts (14) are respectively rotatably sleeved on the connecting bolt 1 (5) of the adjustment plate and the connecting bolt 2 (10) of the side top plate (8).
5. A plastic inspection well protection device according to claim 4, characterized in that: The inner diameter of the rotating nut (14) is larger than the diameters of the connecting bolt 1 (5) and the connecting bolt 2 (10); the connecting bolt 1 (5) is threadedly connected to the limiting nut 1 (6), and the connecting bolt 2 (10) is threadedly connected to the limiting nut 2 (11).
6. A plastic inspection well protection device according to claim 1, characterized in that: The screw rod (1) is also threadedly connected to a fixing nut (16), and the fixing nut (16) is located above the template (15).
7. A plastic inspection well protection device according to claim 1, characterized in that: The upper surface of the upper adjustment plate and the upper and lower surfaces of the lower adjustment plate are both provided with the adjustment nut (7), and the adjustment nut (7) is threadedly connected to the screw rod (1).