Stepping component suitable for assembly type inspection well

Abstract

The utility model discloses a step member suitable for an assembly type inspection well, which comprises a U-shaped embedded sleeve and a frame-shaped step main body, the embedded sleeve is embedded in a prefabricated well body and is fixed with a reinforcing steel bar in the prefabricated well body, and the embedded sleeve is composed of a U-shaped deformed steel bar and sleeves respectively connected to two ends of the U-shaped deformed steel bar; bolt holes are formed in the positions, corresponding to the two sleeves, of one side of the step body, and threaded holes are formed in the sleeves. Bolts are arranged in the corresponding bolt holes and the corresponding threaded holes in a penetrating mode respectively and used for fixing the embedded sleeve and the step body. The embedded sleeve does not protrude out of the surface of the prefabricated well body, a formwork is convenient to erect when the prefabricated well body is poured, the step main body is connected through bolts when the step main body is installed, construction steps are simplified, construction quality and efficiency are improved, and the problems that an existing step part is not firm in installation, inconvenient to embed and not easy to construct are effectively solved. The finished product is high in strength, corrosion-resistant, simple to manufacture, low in manufacturing cost and suitable for assembly type inspection wells with all diameters.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection wells, in particular to a step component suitable for an assembled inspection well. Background Art

[0002] The step is a vertical passage for the construction and daily operation and maintenance of the inspection well of the municipal engineering pipeline network, and is an indispensable component in the inspection well. The assembled inspection well is an inspection well assembled by using prefabricated bottom plate, well chamber, cover plate, well shaft, step and other components through a reliable connection method. Most of the existing assembled inspection well steps are pre-buried integrated structures. The original intention of this structural design is to ensure the structural integrity of the steps and prefabricated components; however, this pre-buried integrated component production method requires holes to be opened in the template, which not only destroys the overall strength of the prefabricated component template, but also brings many inconveniences to the later demoulding. In fact, in the current construction process of assembled inspection wells, construction workers use on-site drilling and later supplementary installation for convenience. As we all know, this on-site drilling construction method often damages the steel bars of the components and causes a large range of concrete damage, which not only reduces the safety performance of the prefabricated components of the inspection well, but also causes the step components to deform, shift or even fall off during later use, causing safety accidents.

[0003] For example, Chinese patent document 202321236863X discloses an easy-to-install inspection well step structure, and its installation method is: reserving installation holes when pouring the inspection well or directly drilling holes on the formed inspection well body or shaft. Although this installation method is more convenient, it also has certain disadvantages. If the installation is carried out by reserving installation holes and then anchoring, the connection between the step and the well body is not firm enough. If holes are drilled on site, the concrete or steel bars of the prefabricated well body will be damaged, thereby affecting the structural strength of the prefabricated well body.

[0004] Therefore, how to effectively solve the on-site assembly problem of prefabricated inspection well steps and improve the construction efficiency and construction quality of prefabricated inspection wells has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the utility model provides a step component suitable for an assembled inspection well, the purpose of which is to improve the construction efficiency and quality of the assembled inspection well and the pedal, and to ensure the high safety of the assembled inspection well structure.

[0006] In order to achieve the above technical purpose, the utility model provides a step member suitable for an assembled inspection well, comprising a U-shaped embedded sleeve and a frame-shaped step body, wherein the embedded sleeve is embedded in a prefabricated well body and fixed to the steel bars in the prefabricated well body, and the embedded sleeve is composed of a U-shaped threaded steel bar and sleeves respectively connected to both ends of the U-shaped threaded steel bar;

[0007] Bolt holes are respectively provided at positions corresponding to the two sleeves on one side of the step body, and threaded holes are provided inside the sleeves;

[0008] Bolts are respectively inserted into the corresponding bolt holes and threaded holes to fix the embedded sleeve and the step body.

[0009] Preferably, the footrest side of the step body is provided with an anti-skid outer layer, and the surface of the anti-skid outer layer is provided with mesh convex patterns.

[0010] Preferably, the step body corresponds to one side of the bolt head and is configured as a plane that can match the bolt head.

[0011] Preferably, a gasket and a rubber ring are provided between the head of the bolt and the step body.

[0012] Beneficial effects of the utility model:

[0013] Due to the above structural design, the embedded sleeve of the utility model does not protrude from the surface of the prefabricated well body, which is convenient for supporting the formwork when pouring the prefabricated well body. The step body is connected by bolts when installed, and there is no need to drill holes on site, which simplifies the construction and installation steps, improves the construction quality and efficiency, and effectively solves the problems of the existing step parts being unreliable to install, inconvenient to embed, and difficult to construct, and effectively ensures the structural safety of the assembled inspection well. The finished product has high strength and corrosion resistance, is simple to make and low in cost, and the size standard is suitable for assembled inspection wells of all diameters, which is easy to promote and popularize. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 for Figure 1 Schematic diagram of the cross-section structure at aa in the middle;

[0016] Figure 3 This is a schematic diagram of the U-shaped embedded sleeve being embedded in the circular prefabricated well body when the step body is not installed in the utility model;

[0017] Figure 4 for Figure 3 Schematic diagram of the cross-section structure at bb in the middle;

[0018] Figure 5 This is a schematic diagram of the U-shaped embedded sleeve being embedded in a rectangular prefabricated well body when the step body is not installed in the utility model;

[0019] Figure 6 for Figure 5 Schematic diagram of the cross-section structure at cc;

[0020] Figure 7It is a structural schematic diagram of the step body in the utility model;

[0021] Figure 8 for Figure 7 Schematic diagram of the cross-section structure at dd in the middle;

[0022] Fig. 9 It is a structural schematic diagram of the cover cap in the utility model.

[0023] In the figure: 1 embedded sleeve, 2 step body, 3 U-shaped threaded steel, 4 sleeve, 5 threaded hole, 6 cap, 7 anti-slip outer layer, 8 bolt hole, 9 bolt, 10 gasket, 11 rubber ring. DETAILED DESCRIPTION

[0024] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0025] Example:

[0026] like Figure 1-Figure 9 As shown, a step component suitable for an assembled inspection well comprises a U-shaped embedded sleeve 1 and a frame-shaped step body 2. The embedded sleeve 1 is embedded in the prefabricated well body and fixed to the steel bars in the prefabricated well body. The embedded sleeve 1 consists of a U-shaped threaded steel bar 3 and sleeves 4 respectively connected to the two ends of the U-shaped threaded steel bar 3; bolt holes 8 are respectively opened at positions corresponding to the two sleeves 4 on one side of the step body 2, and threaded holes 5 are opened inside the sleeve 4; bolts 9 are respectively passed through the corresponding bolt holes 8 and threaded holes 4 to fix the embedded sleeve 1 and the step body 2.

[0027] The main innovation of the utility model is that the embedded sleeve 2 does not protrude from the surface of the prefabricated well body, which is convenient for supporting the formwork when casting the prefabricated well body. The step body 1 is installed by bolt connection without on-site drilling, which simplifies the construction and installation steps and improves the construction quality and efficiency.

[0028] Specifically, the embedded sleeve 1 is fixed to the steel bars of the prefabricated well body and can be integrally cast with the prefabricated well body, so that the embedded sleeve 1 forms a good connection with the prefabricated well body and increases the pull-out resistance.

[0029] The material of the step body 2 is 304 stainless steel or a combination of plastic and steel. The overall structure adopts a closed frame structure formed by bending a round steel bar with a diameter of not less than 20 mm, so that the step body 2 has the characteristics of corrosion resistance and strong tensile and bending resistance, thereby improving the safety and durability of the step body 2.

[0030] like Figure 3 , Figure 4 , Figure 5 , Figure 6 and Fig. 9As shown, before pouring the prefabricated well body, a cap 6 can be inserted into the sleeve 4. The cap 6 is provided with threads on the outside so that the cap 6 fits tightly with the threaded hole 5, which can effectively prevent the threaded hole 5 from being blocked when pouring concrete; before installing the step body 2, remove the cap 6 that blocks the threaded hole 5, and tighten the step body 2 to the embedded sleeve 1 with bolts 9 to complete the installation of the step body 1. The bolts 9 are friction-type high-strength bolts.

[0031] like Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, further, the footrest side of the step body 1 is provided with an anti-skid outer layer 7, and the surface of the anti-skid outer layer 7 is provided with a mesh convex pattern, so that the step body 2 has high strength and is water-resistant, oil-resistant, corrosion-resistant, convenient to hold and step on, and has good anti-skid performance.

[0032] like Figure 1 , Figure 2 and Figure 7 As shown, one side of the step body 1 corresponding to the head of the bolt 9 is set to a plane that can match the head of the bolt 9; the bolt hole 8 side of the step body 2 can be flattened to facilitate the stable fit of the high-strength bolt 9 and the bolt hole 8, thereby enhancing the stability of the step body 2 after installation.

[0033] like Figure 1 and Figure 2 As shown, a gasket 10 and an apron 11 are provided between the head of the bolt 9 and the step body 1. The material of the apron 11 can be water-swellable rubber or silicone to disperse the stress generated by tightening, prevent moisture and seepage, and make the connection between components more fitting and firm.

[0034] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A step component suitable for an assembled inspection well, comprising a U-shaped embedded sleeve and a frame-shaped step body, characterized in that: The embedded sleeve is embedded in the prefabricated well body and fixed with the steel bars in the prefabricated well body. The embedded sleeve is composed of a U-shaped threaded steel bar and sleeves respectively connected to both ends of the U-shaped threaded steel bar. Bolt holes are respectively provided at positions corresponding to the two sleeves on one side of the step body, and threaded holes are provided inside the sleeves; Bolts are respectively inserted into the corresponding bolt holes and threaded holes to fix the embedded sleeve and the step body.

2. The step member suitable for an assembled inspection well according to claim 1 is characterized in that: The footrest side of the step body is provided with an anti-skid outer layer, and the surface of the anti-skid outer layer is provided with mesh convex patterns.

3. The step member suitable for an assembled inspection well according to claim 2 is characterized in that: The step body corresponds to one side of the bolt head and is arranged to be a plane that can match the bolt head.

4. The step member suitable for an assembled inspection well according to any one of claims 1 to 3, characterized in that: A gasket and a rubber ring are arranged between the head of the bolt and the step body.

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