A kind of anti-fall inspection well

Abstract

The utility model relates to an anti-fall inspection well, and its structure includes a well body, an anti-fall base and a cover plate; the anti-fall base is arranged at the upper end of the well body, and an expansion ring extending downward along the inner wall of the well body is arranged at the inner end of the anti-fall base, and a support portion extending horizontally toward the center of the well body is arranged at the lower end of the expansion ring, and a protrusion extending horizontally toward the center of the well body is arranged at the upper end of the expansion ring; the cover plate is arranged on the anti-fall base, and a groove cooperating with the protrusion is arranged on the cover plate. By arranging the anti-fall base and the cover plate, the utility model can effectively avoid the safety hazards caused by the loss or damage of the manhole cover, and can prevent pedestrians from accidentally falling into the well. At the same time, it can also provide certain support when pedestrians accidentally fall into the well, so as to minimize the damage.

Description

Technical Field

[0001] The utility model relates to a protective device, in particular to an anti-falling inspection well. Background Art

[0002] Inspection wells are commonly known as "manholes". They are widely used in the installation, inspection and maintenance of urban underground infrastructure such as power supply, water supply, drainage, sewage, communications, cable TV, gas pipes, street light lines, etc., to facilitate the entry and exit and maintenance operations of workers. Inspection wells are generally set up at pipeline intersections, turns, places where pipe diameters or slopes change, and at regular intervals on straight pipe sections to facilitate inspection and maintenance by workers.

[0003] Once the manhole is no longer protected by a manhole cover, it will become a potential source of danger. Pedestrians, especially those riding electric bikes or bicycles, may accidentally fall into the manhole without a manhole cover, resulting in injury or even life-threatening situations. This risk is particularly prominent at night. In addition, when it rains heavily, urban waterlogging often occurs. As an important part of the urban drainage system, the manhole plays an important role in flood discharge and drainage. Utility Model Content

[0004] The purpose of the utility model is to provide a fall-proof inspection well to solve the problem of potential safety hazards caused by the loss of existing well covers.

[0005] The utility model is implemented as follows: a fall-proof inspection well, whose structure includes a well body, an anti-fall base and a cover plate; the anti-fall base is arranged at the upper end of the well body, and an expansion ring extending downward along the inner wall of the well body is provided at the inner end of the anti-fall base, a support portion extending horizontally toward the center of the well body is provided at the lower end of the expansion ring, and a protrusion extending horizontally toward the center of the well body is provided at the upper end of the expansion ring; the cover plate is arranged on the anti-fall base, and a groove cooperating with the protrusion is provided on the cover plate.

[0006] Furthermore, the outer end of the anti-fall base is flush with the outer wall of the well body.

[0007] Furthermore, the size of the cover plate is larger than the size of the protrusion and smaller than the size of the expansion ring.

[0008] Furthermore, the cover plate is arranged between the supporting portion and the protruding portion.

[0009] Furthermore, there are a plurality of elongated holes on the cover plate.

[0010] Furthermore, a support rod is arranged on the cover plate, and a warning sign is arranged on the support rod.

[0011] Furthermore, reflective stickers are attached to the support rod and the warning sign.

[0012] Furthermore, the support rod is arranged on the corresponding cover plate through a torsion spring.

[0013] Furthermore, the support rod is made of elastic material.

[0014] Furthermore, the wellbore is a wound structure wall pipe.

[0015] The utility model can effectively avoid the potential safety hazards caused by the loss or damage of the manhole cover by setting an anti-fall base and a cover plate, can prevent pedestrians from accidentally falling into the well, and can also provide certain support when pedestrians accidentally fall into the well, thereby minimizing the damage. The utility model is provided with an expansion ring in the anti-fall base, which increases the structural strength of the wellhead, prevents the deformation and damage of the wellhead caused by the external extrusion force, thereby ensuring the stability of the wellhead and improving the reliability of the anti-fall inspection well. The utility model is provided with a support rod and a warning sign on the cover plate, and a reflective sticker is affixed to remind pedestrians and vehicles to pay attention to the existence of the wellhead, thereby reducing the possibility of accidents. The long strip holes are arranged on the cover plate, which will not affect the normal drainage function of the inspection well, and can also prevent the wellhead from being blocked by accumulated water and debris, thereby ensuring the normal operation of the urban drainage system. The utility model has a simple structure and is easy to install. It can be modified or upgraded on the existing manhole to improve its safety performance. At the same time, the use of the winding structure wall pipe can save raw materials, has excellent corrosion resistance and a long service life, and has a high market promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the anti-fall base.

[0018] Figure 3 It is a structural diagram of the cover.

[0019] In the figure: 1. well body, 2. anti-fall base, 3. cover plate, 4. support rod, 5. warning sign, 21. expansion ring, 22. support part, 23. protrusion, 31. groove. DETAILED DESCRIPTION

[0020] As shown in the figure, the utility model comprises a well body 1, an anti-falling base 2 arranged at the upper end of the well body 1, and a cover plate 3 arranged on the anti-falling base 2.

[0021] Well body 1 is a polyethylene / polypropylene spiral structure wall pipe or a solid wall pipe. The spiral structure wall pipe has low production cost and excellent corrosion resistance and long service life. When well body 1 adopts polyethylene / polypropylene spiral structure wall pipe, well body 1 is a typical example of type A structure wall pipe in standard number: GB / T 19472.2-2017 "Buried Polyethylene (PE) Structural Wall Pipe System Part 2: Polyethylene Spiral Structure Wall Pipe Material" or standard number: GB / T 35451.2-2018 "Buried Polypropylene (PP) Structural Wall Pipe System Part 2: Polypropylene Spiral Structure Wall Pipe Material" Typical A-type structure wall pipe schematic diagram Figure II structure.

[0022] The anti-fall base 2 is arranged at the upper end of the well body 1, and the anti-fall base 2 is used to prevent the cover plate 3 from falling into the well. The outer end of the anti-fall base 2 does not protrude from the outer wall of the well body 1 to reduce the obstruction that may be caused when the anti-fall base 2 is placed, so that the anti-fall base 2 can be used more smoothly. A circle of expansion ring 21 extending downward along the inner wall of the well body is provided at the inner end of the anti-fall base 2. The expansion ring 21 is used to support the upper end of the well body 1 so that it does not deform, ensure the verticality of the well body 1 and the stability of the wellhead, thereby ensuring the smooth installation and use of the manhole cover 3. A support portion 22 extending flatly toward the center of the well body is provided at the lower end of the expansion ring 21, and a protrusion 23 extending flatly toward the center of the well body is provided at the upper end of the expansion ring 21. The cover plate 3 is arranged between the support portion 22 and the protrusion 23. In order to better buckle the cover plate 3, more than two protrusions 23 can be provided on the expansion ring 21.

[0023] The outer diameter of the cover plate 3 is larger than the inner diameter of the protrusion 23 and smaller than the inner diameter of the expansion ring 21. A groove 31 is provided on the outer edge of the cover plate 3 to match the protrusion 23. The cover plate 3 is placed on the support portion 22 of the anti-fall base 2 through the groove 31, and then the cover plate 3 is rotated to make the groove on the cover plate 3 staggered with the protrusion 23 on the anti-fall base 2 to lock the cover plate 3. A plurality of long holes are provided on the cover plate 3 to ensure normal drainage function.

[0024] The anti-fall base 2 and the cover plate 3 can be made of metal, or other materials or the same material as the well body 1. The specific material can be selected according to actual needs and conditions. If the durability of the anti-fall base 2 and the cover plate 3 needs to be improved, metal can be selected; if the cost needs to be saved and improved, other materials or the same material as the well body 1 can be selected.

[0025] A support rod 4 is arranged on the cover plate 3, a warning sign 5 is arranged on the support rod 4, and reflective stickers are affixed to the support rod 4 and the warning sign 5. The support rod 4 is arranged on the cover plate 3 through a torsion spring, or the support rod 4 is made of an elastic material, such as rubber, plastic, glass fiber reinforced plastic or carbon fiber reinforced plastic. When the manhole cover is closed, the warning sign 5 is pressed under the manhole cover. When the manhole cover is opened, the warning sign 5 is erected under the torsion spring or the elasticity of the support rod 4 itself, ensuring that the warning sign 5 always remains in a conspicuous position, especially in rainy days and other conditions with low visibility, the warning sign 5 protruding from the bottom surface can more conspicuously remind pedestrians to pay attention to safety. The use of reflective stickers can also enhance the visibility of the warning sign 5 at night or in low visibility conditions, increase pedestrians' alertness to danger, and further reduce the risk of accidents.

[0026] The utility model is a polyethylene / polypropylene wrapped structure wall pipe well or solid wall pipe well and its manhole cover plate used below the manhole, and a manhole base and manhole cover made of ductile iron are arranged above the utility model. The utility model is used to prevent pedestrians from falling into the well after the manhole cover above is lost, damaged or pushed open by rainwater. Even if pedestrians accidentally fall into the manhole, the anti-fall base and cover plate can provide certain support for the pedestrians, minimizing the damage. The utility model adopts plastic material, which makes the utility model light and durable, easy to manufacture and maintain. The utility model adopts plastic material, which makes the utility model light and durable, easy to manufacture and maintain.

Claims

1. A fall prevention inspection well, characterized in that: It includes a well body, an anti-fall base and a cover plate; the anti-fall base is arranged at the upper end of the well body, an expansion ring extending downward along the inner wall of the well body is arranged at the inner end of the anti-fall base, a supporting part extending horizontally toward the center of the well body is arranged at the lower end of the expansion ring, and a protrusion extending horizontally toward the center of the well body is arranged at the upper end of the expansion ring; the cover plate is arranged on the anti-fall base, and a groove cooperating with the protrusion is arranged on the cover plate.

2. The anti-fall inspection well according to claim 1 is characterized in that: The outer end of the anti-fall base is flush with the outer wall of the well body.

3. The anti-fall inspection well according to claim 1 is characterized in that: The size of the cover plate is larger than that of the protrusion and smaller than that of the expansion ring.

4. The anti-fall inspection well according to claim 1 is characterized in that: The cover plate is disposed between the support portion and the protruding portion.

5. The anti-fall inspection well according to claim 1 is characterized in that: A plurality of elongated holes are provided on the cover plate.

6. The anti-fall inspection well according to claim 1 is characterized in that: A support rod is arranged on the cover plate, and a warning sign is arranged on the support rod.

7. The anti-fall inspection well according to claim 6 is characterized in that: Reflective stickers are attached to the support rod and the warning sign.

8. The anti-fall inspection well according to claim 6 is characterized in that: The support rod is arranged on the corresponding cover plate through a torsion spring.

9. The anti-fall inspection well according to claim 6, characterized in that: The support rod is made of elastic material.

10. The anti-fall inspection well according to claim 1, characterized in that: The wellbore is a wound structural wall pipe.

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