Circular safety protective barrier for inspection well
By designing a combination of rectangular steel pipe frame and support rod slot, the problem of inconvenient installation of existing guardrails is solved, enabling rapid installation and improving on-site safety. It is suitable for inspection wells of different sizes.
Patent Information
- Application Number
- CN202520274067.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-20
AI Technical Summary
The existing manhole guardrails constructed with fastener-type steel pipes are extremely inconvenient to install and dismantle, and pose safety hazards during construction.
Design a guardrail comprising a rectangular steel pipe frame, the frame consisting of an upper horizontal bar, a lower horizontal bar, and two side uprights. The lower end of the uprights is inserted into the manhole and fixed with L-shaped angle steel. The two uprights are equipped with pins and pin seats, which, together with the support rod slot seats, form a circular safety guardrail. The exterior is equipped with wire mesh and black and yellow warning patterns.
It enables rapid installation and dismantling of guardrails, improves the safety of construction sites, and has wide applicability and aesthetic appeal.
Smart Images

Figure CN223689441U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a protective fence, specifically a round safety protective fence for inspection well. BACKGROUND
[0002] Currently, fastener type steel pipe is used to erect a simple protective fence for inspection well in municipal engineering construction, and the protective fence needs to be fixed to the ground during installation, and needs to be installed and dismounted multiple times as the inspection well is raised, which is extremely inconvenient.
[0003] Therefore, the known fastener type steel pipe erection protective fence has the above-mentioned inconveniences and problems. SUMMARY
[0004] The utility model aims at providing a safe and reliable round safety protective fence for inspection well.
[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows:
[0006] A round safety protective fence for inspection well comprises a plurality of protective fences and a plurality of support rods, and is characterized in that:
[0007] The plurality of protective fences are identical in structure and size, each protective fence is provided with a rectangular steel pipe frame, the steel pipe frame comprises an upper horizontal rod, a lower horizontal rod and two side vertical rods, the bottom of the steel pipe frame is not fully sealed, the lower end of the vertical rod is an insertion end for insertion into the well mouth, a curved ruler-shaped angle steel is fixedly arranged at the top end of the insertion end to enable the curved ruler-shaped angle steel on the outer surface of the vertical rod to be clamped into the well mouth foundation, a latch and a latch seat are fixedly arranged at the upper middle part of each vertical rod, the rectangular steel pipe frame is provided with a steel mesh, a steel plate is arranged between the lower end of the steel mesh and the lower horizontal rod, and a black and yellow alternating warning pattern is arranged on the steel plate; a support rod groove seat is fixedly arranged on the vertical rod.
[0008] The plurality of support rods are matched with the support rod groove seats to form horizontal support inside the round safety protective fence.
[0009] The round safety protective fence for inspection well of the utility model can be further implemented by the following technical measures.
[0010] The aforementioned round safety protective fence for inspection well, wherein the support rod is a φ24mm steel pipe.
[0011] After the above technical solution is adopted, the round safety protective fence for inspection well of the utility model has the following advantages:
[0012] 1. The protective fence is simple in manufacturing principle and wide in application range.
[0013] 2. The use effect is obvious, and the protective fence can be mass-produced, installed fast and has an attractive appearance.
[0014] 3、 can effectively improve the safety of construction site. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 Structure diagram of single protective fence of the utility model embodiment is shown in the figure;
[0016] Figure 2 For Figure 1 side view;
[0017] Figure 3 Usage state diagram of protective fence of the utility model embodiment is shown in the figure;
[0018] Figure 4 Supporting rod and supporting rod groove seat cooperation diagram of the utility model embodiment is shown in the figure;
[0019] Figure 5 Connecting diagram of two adjacent protective fences of the utility model embodiment is shown in the figure. DETAILED DESCRIPTION
[0020] The utility model will be further described below in combination with its embodiments and drawings.
[0021] Embodiment 1
[0022] The inspection well round safety protective fence of the utility model, including eight protective fences, three supporting rods.
[0023] Please see Figures 1-5 As shown in the figure, the structure, size of the eight protective fences are same, each protective fence is equipped with rectangular steel tube frame, and the steel tube frame includes upper horizontal rod, lower horizontal rod, two side vertical rods 2, the bottom of the steel tube frame is not full seal, the lower end of the vertical rod is inserted end 21, which is used to insert the inspection well mouth 10, and the top of the inserted end is fixedly provided with curve ruler shaped angle steel 7, so that the curve ruler shaped angle steel of the vertical rod outer facade 8 is clamped into the inspection well mouth foundation 11, the upper middle part of the two vertical rods is fixedly provided with bolt 1 and bolt seat 3 respectively, the rectangular steel tube frame is provided with steel wire mesh 4, and the lower end of the steel wire mesh is provided with steel plate 5 between the lower horizontal rod, and the steel plate is provided with black and yellow warning pattern;The vertical rod 2 is fixedly provided with supporting rod groove seat 6;
[0024] The plurality of supporting rods 9 are arranged in up and down cross, the supporting rod is matched with the supporting rod groove seat, and horizontal support inside the round safety protective fence is formed.
[0025] The manufacturing method of the inspection well round safety protective fence of the utility model is as follows:
[0026] The manhole round safety guardrail needs to check the size of the manhole respectively to make the length of the inner support steel pipe, so as to ensure the firmness and reliability after the installation of the inner support after the installation of the guardrail in the manhole of different sizes. Table 1 is a material table of the manhole round safety guardrail (500mm wide one piece of guardrail)
[0027] Table 1 Material table of manhole round safety guardrail
[0028]
[0029] The manufacturing principle of the manhole round safety guardrail of the utility model is as follows:
[0030] The round safety guardrail uses left and right vertical poles and upper and lower horizontal poles to splice the whole frame, the bolt is bent F type and welded on the vertical pole, the steel wire mesh and the steel plate are welded according to the drawing, one side of the square tube is cut off, is processed into U type and welded on the back of one piece of the round safety guardrail to form a support rod groove seat, and finally the whole is sprayed with paint.
[0031] The application principle of the manhole round safety guardrail of the utility model is as follows: the manhole round safety guardrail is divided into one piece by one piece through customized processing, the guardrail is fixed by the bolts on both sides and the inner support steel pipe, the vertical pole and the angle steel are inserted into the manhole to fix the whole guardrail.
[0032] The manhole round safety guardrail of the utility model can be applied in the Shangli Nanbei Street urban renewal project and the municipal road manhole construction process. The manufacturing principle is simple, the application is strong, the use effect is obvious, the manhole round safety guardrail can be simply installed fast in the use process, and the safety of the construction site can be effectively improved.
[0033] The above examples are only used to illustrate the utility model, and are not limited to the utility model. Those skilled in the art can make various transformations or changes without departing from the spirit and scope of the utility model. Therefore, all equivalent technical solutions should belong to the scope of the utility model, and should be limited by the claims.
Claims
1. A manhole round safety fence, comprising a plurality of fence panels and a plurality of support rods, characterized in that: the plurality of fence panels are identical in structure and size, each fence panel is provided with a rectangular steel tube frame, the steel tube frame comprises an upper horizontal rod, a lower horizontal rod and two side vertical rods (2), the bottom of the steel tube frame is not fully sealed, the lower end of the vertical rod is an insertion end (21) for insertion into a manhole opening (10), the top end of the insertion end is fixedly provided with a curved ruler-shaped angle steel (7) to enable the curved ruler-shaped angle steel of the outer vertical surface (8) of the vertical rod to be clamped into a manhole opening base (11), a bolt (1) and a bolt seat (3) are fixedly arranged on the upper middle part of each vertical rod, the rectangular steel tube frame is provided with a steel mesh (4), a steel plate (5) is arranged between the lower end of the steel mesh and the lower horizontal rod, the steel plate is provided with a black and yellow alternating warning pattern, and a support rod groove seat (6) is fixedly arranged on the vertical rod (2); the plurality of support rods (9) cooperate with the support rod groove seats to form horizontal support inside the round safety fence.
2. The inspection well round safety fence railing of claim 1, wherein, the support rod (9) is a φ24mm steel tube.