Inspection well cover
By using a manhole cover structure composed of angle iron, closure plate, reinforcement rod and epoxy resin steel bar, the existing manhole cover is solved, and the effect of low cost and extended service life is achieved.
Patent Information
- Application Number
- CN202421013978.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The existing manhole covers require concrete fillers, which leads to high manufacturing costs and bulky, affecting production and construction.
A rectangular frame structure consisting of angle iron, closure plate, reinforcement rod and epoxy resin steel bar is adopted to form a manhole cover through welding connection to ensure structural strength and cover function. At the same time, corner reinforcement blocks are used to improve the stability of the four-corner connection.
It reduces manufacturing costs, improves production efficiency, and extends the service life of manhole covers through epoxy resin steel bars to ensure structural stability and deformation resistance.
Smart Images
Figure CN222252226U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of manhole covers, in particular to a manhole cover. Background Art
[0002] A manhole cover is an essential facility for modern urban road construction. For example, China Patent has disclosed China Patent No. [CN202121349198.6], a manhole cover for municipal engineering with a stable structure, including a metal shell, metal support feet are welded at the four corners of the lower surface of the metal shell, a water-permeable pipe is penetrated through the surface of the metal shell by welding, a metal woven mesh and a blocking plate are welded inside the metal shell, and the metal woven mesh and the blocking plate are vertically arranged; it is convenient for the metal shell and the metal support feet to cooperate to protect the concrete filler, thereby increasing the stability of the edge of the manhole cover, and it is also convenient for the manhole cover to be limited by the metal support feet to avoid dislocation when the manhole cover is squeezed, thereby increasing the reliability of the manhole cover structure, and at the same time, a metal woven mesh and a blocking plate are arranged inside the metal shell, so that the metal woven mesh and the blocking plate cooperate to strengthen the concrete filler, thereby increasing the strength of the manhole cover structure.
[0003] Although the above solution has the above advantages, the above solution requires concrete filler in the metal shell. From the cost perspective, the manufacturing cost of this solution is relatively high (concrete and concrete pouring are required). Secondly, from the weight perspective of the manhole cover, the above solution will make the total amount of the entire manhole cover very heavy, affecting production and construction. Utility Model Content
[0004] The purpose of the utility model is to provide a manhole cover that solves the above-mentioned technical problems in view of the above-mentioned problems in the prior art.
[0005] The purpose of the utility model can be achieved through the following technical solutions:
[0006] The manhole cover comprises a manhole cover body having a chamber, wherein the manhole cover body comprises a plurality of angle irons connected end to end, wherein the plurality of angle irons form an annular frame, wherein a closing plate for closing an axial end of the annular frame is provided on the annular frame, and a plurality of reinforcing rods distributed transversely and / or longitudinally are provided on the inner wall of the annular frame, wherein the reinforcing rods are in tangential contact with the closing plate.
[0007] In the manhole cover, the closing plate is made of metal material, the reinforcing rod is a metal rod, and the reinforcing rod and the closing plate are welded together.
[0008] In the manhole cover, the reinforcing rod is welded to the closing plate via a plurality of welding points distributed at intervals.
[0009] In the manhole cover, the reinforcing rod is an epoxy resin steel bar. In the manhole cover, the angle iron and the closing plate are welded and connected. The epoxy resin steel bar has good corrosion resistance and greatly improves the overall service life of the manhole cover.
[0010] In the manhole cover, the annular frame is a rectangular frame, and corner reinforcement blocks are respectively provided at the four inner corners of the annular frame.
[0011] In the manhole cover, the axial height of the corner reinforcement block in the annular frame is lower than the axial length of the annular frame.
[0012] In the manhole cover, the corner reinforcement block is an angle iron triangular reinforcement block, and the corner reinforcement block and the inner corner of the annular frame form a triangular space, and a tool insertion hole is provided on a surface of the corner reinforcement block away from the closing plate, and the triangular space is connected to the tool insertion hole.
[0013] Compared with the prior art, the manhole cover has the following beneficial effects:
[0014] Angle iron is used as the main frame structure to ensure the structural strength of the entire ring frame, while the further arranged closing plate and reinforcing rod can ensure that the manhole cover has a covering function while also ensuring the structural strength.
[0015] From a cost perspective, the present application can be processed as long as the manufacturing is completed (no concrete filler is required), which is low-cost and can invisibly improve production efficiency.
[0016] From the perspective of use, this application can also meet the use requirements of manhole covers. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 A schematic diagram of the structure of a manhole cover provided in an embodiment of the utility model.
[0018] Figure 2 A schematic diagram of the structure of a manhole cover from another angle provided in an embodiment of the utility model.
[0019] Figure 3 This is a reference diagram for the transverse distribution structure of the reinforcement rods in the manhole cover.
[0020] Figure 4 This is a structural reference diagram for the horizontal and vertical placement of reinforcement rods in manhole covers.
[0021] In the figure, there is a manhole cover body 1, a chamber 11, an angle iron 2, a ring frame 3, a closing plate 4, a reinforcing rod 5, a corner reinforcing block 6, and a tool insertion hole 61. DETAILED DESCRIPTION
[0022] The following are specific embodiments of the utility model and the accompanying drawings to further describe the technical solution of the utility model, but the utility model is not limited to these embodiments. Embodiment 1
[0023] like Figure 1 and Figure 2 As shown, the manhole cover includes a manhole cover body 1 having a chamber 11, and the manhole cover body 1 includes a plurality of angle irons 2 connected end to end, and the plurality of angle irons 2 form an annular frame 3, and a closing plate 4 is provided on the annular frame 3 to close one end of the annular frame 3 in the axial direction, and a plurality of reinforcing rods 5 distributed transversely and / or longitudinally are provided on the inner wall of the annular frame 3, and the reinforcing rods 5 are in tangential contact with the closing plate 4. Specifically, in this embodiment, the manhole cover body 1 is square in shape, for example, it can also be circular, polygonal, etc. without limitation, and specifically the closing plate 4 is made of metal material, the reinforcing rod 5 is a metal rod, and the reinforcing rod 5 and the closing plate 4 are welded and connected. The chamber 11 of the manhole cover body 1 is formed by closing one end of the annular frame 3 in the axial direction with the closing plate 4.
[0024] As a preferred solution, the reinforcing rods 5 of the manhole cover in this embodiment are longitudinally distributed, for example: Figure 4 The reinforcing rods 5 of the middle manhole cover can also achieve the same technical effect by being distributed laterally to ensure the connection stability between the annular frame 3 and the closing plate 4. For example: Figure 4 The reinforcing rod 5 of the middle manhole cover can also achieve the same technical effect by being placed up and down horizontally and vertically, which will not be described in detail here.
[0025] Specifically, the manhole cover in this embodiment is more resistant to deformation, stronger and more durable than traditional manhole covers, and its internal corrosion and weathering characteristics greatly increase the service life of the manhole cover.
[0026] To ensure the connection stability between the reinforcing rod 5 and the closing plate 4, Figure 2 As shown, the reinforcing rod 5 is welded to the closing plate 4 through a plurality of welding points distributed at intervals. Specifically, the reinforcing rod 5 in this embodiment is epoxy resin steel bar. Epoxy resin steel bar has good barrier properties, thereby preventing external erosion and corrosion to ensure the stability of the steel bar connection.
[0027] In order to ensure the overall stability of the manhole cover body 1, Figure 1 and Figure 2 As shown, specifically, in this embodiment, the angle iron 2 and the closing plate 4 are welded and connected. More specifically, the annular frame 3 is a rectangular frame, and corner reinforcement blocks 6 are respectively provided at the four inner corners of the annular frame 3. The reinforcement blocks 6 are used to prevent the four corners of the manhole cover body 1 from deformation and the like.
[0028] In order to prevent the corner reinforcement block 6 from affecting the use effect of the manhole cover body 1, Figure 2As shown, the axial height of the corner reinforcement block 6 in the annular frame 3 is lower than the axial length of the annular frame 3. This not only enhances the connection and contact between the four corners of the annular frame 3, but also realizes the overall aesthetics of the manhole cover body 1.
[0029] like Figure 1 and Figure 2 As shown, the corner reinforcement block 6 is an angle iron triangular reinforcement block, and the corner reinforcement block 6 and the inner corner of the annular frame 3 form a triangular space. A tool insertion hole 61 is provided on a surface of the corner reinforcement block 6 away from the closing plate 4, and the triangular space and the tool insertion hole 61 are connected.
[0030] Angle iron is used as the main frame structure to ensure the structural strength of the entire ring frame, while the further arranged closing plate and reinforcing rod can ensure that the manhole cover has a covering function while also ensuring the structural strength.
[0031] From a cost perspective, the present application can be processed as long as the manufacturing is completed (no concrete filler is required), which is low-cost and can invisibly improve production efficiency.
[0032] From the perspective of use, this application can also meet the use requirements of manhole covers.
[0033] Although the terms such as manhole cover body 1, chamber 11, angle iron 2, annular frame 3, closing plate 4, reinforcing rod 5, corner reinforcing block 6, tool insertion hole 61 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
Claims
1. A manhole cover, comprising a manhole cover body (1) having a chamber (11), characterized in that: The manhole cover body (1) comprises a plurality of angle irons (2) connected end to end, wherein the plurality of angle irons (2) form an annular frame (3), and a closing plate (4) is provided on the annular frame (3) for closing the opening of one axial end of the annular frame (3), and a plurality of reinforcing rods (5) distributed transversely and / or longitudinally are provided on the inner wall of the annular frame (3), and the reinforcing rods (5) are in tangential contact with the closing plate (4).
2. The manhole cover according to claim 1, characterized in that: The closing plate (4) is made of metal material, the reinforcing rod (5) is a metal rod, and the reinforcing rod (5) and the closing plate (4) are connected by welding.
3. The manhole cover according to claim 2, characterized in that: The reinforcing rod (5) is welded to the closing plate (4) via a plurality of welding points distributed at intervals.
4. The manhole cover according to claim 1 or 2, characterized in that: The reinforcing rod (5) is an epoxy resin steel bar.
5. The manhole cover according to claim 2, characterized in that: The angle iron (2) and the closing plate (4) are connected by welding.
6. The manhole cover according to claim 1, characterized in that: The annular frame (3) is a rectangular frame, and corner reinforcement blocks (6) are respectively provided at the four inner corners of the annular frame (3).
7. The manhole cover according to claim 6, characterized in that: The axial height of the corner reinforcement block (6) on the annular frame (3) is lower than the axial length of the annular frame (3).
8. The manhole cover according to claim 7, characterized in that: The corner reinforcement block (6) is an angle iron triangular reinforcement block, and the corner reinforcement block (6) and the inner corner of the annular frame (3) form a triangular space, and a tool insertion hole (61) is provided on a surface of the corner reinforcement block (6) away from the closing plate (4), and the triangular space and the tool insertion hole (61) are connected.