Shock absorbing manhole cover structure

Abstract

This utility model relates to the field of manhole cover technology and provides a shock-absorbing manhole cover structure, including a manhole casing, a manhole opening assembly, a limiting assembly, an annular buffer pad, and a manhole cover. The manhole opening assembly is coaxially arranged with the manhole casing and located at the upper part of the manhole casing. The lower part of the limiting assembly is connected to the inner wall of the manhole casing, and the upper part of the limiting assembly is connected to the manhole opening assembly. An annular limiting groove is formed circumferentially between the upper part of the limiting assembly and the manhole opening assembly. The annular buffer pad is disposed in the annular limiting groove, and the radial inner wall of the annular buffer pad abuts against the radial outer wall of the limiting groove. The radial outer wall of the annular buffer pad abuts against the manhole opening assembly. The lower part of the manhole cover abuts against the annular buffer pad. The shock-absorbing manhole cover structure provided by this utility model solves the defect in the prior art where flexible washers used for cushioning and shock absorption of manhole covers are prone to structural displacement during use, leading to poor shock absorption effect or even failure.

Description

Technical Field

[0001] This utility model relates to the field of manhole cover technology, and in particular to a shock-absorbing manhole cover structure. Background Technology

[0002] Vibration-damping installations on manhole covers are typically designed to reduce the impact of vehicle vibrations on the covers, prevent noise, and extend their lifespan.

[0003] In existing technologies, flexible washers are commonly used to dampen the vibration of manhole covers. However, due to insufficient fixing mechanisms, existing flexible washers often experience structural displacement during long-term use, leading to a decrease or even failure of the vibration damping function, making it difficult to maintain the expected vibration damping performance. Utility Model Content

[0004] This utility model provides a shock-absorbing manhole cover structure to solve the defect in the prior art where the flexible gasket used for buffering and shock absorption of manhole covers is prone to structural displacement during use, resulting in poor shock absorption effect or even failure.

[0005] This utility model provides a shock-absorbing manhole cover structure, including: a manhole cylinder, a manhole opening assembly, a limiting assembly, an annular buffer pad, and a manhole cover.

[0006] The wellhead assembly is coaxially arranged with the wellbore and located at the upper part of the wellbore; the lower part of the limiting assembly is connected to the inner wall of the wellbore, and the upper part of the limiting assembly is connected to the wellhead assembly. An annular limiting groove is formed circumferentially between the upper part of the limiting assembly and the wellhead assembly; the annular buffer pad is disposed in the annular limiting groove, the radial inner wall of the annular buffer pad abuts against the radial outer wall of the limiting groove, and the radial outer wall of the annular buffer pad abuts against the wellhead assembly; the lower part of the well cover abuts against the annular buffer pad.

[0007] According to the shock-absorbing manhole cover structure provided by this utility model, the limiting component includes: multiple limiting plates arranged circumferentially, the lower part of the limiting plate being connected to the inner wall of the manhole, the upper part of the limiting plate being connected to the manhole opening component, a sub-limiting groove being formed between the upper part of the limiting plate and the manhole opening component, and all the sub-limiting grooves forming the annular limiting groove along the circumferential direction.

[0008] According to the shock-absorbing manhole cover structure provided by this utility model, multiple limiting plates are arranged at intervals along the circumference.

[0009] According to the shock-absorbing manhole cover structure provided by this utility model, the spacing between adjacent limiting plates is the same.

[0010] According to the shock-absorbing manhole cover structure provided by this utility model, adjacent limiting plates are connected to each other.

[0011] According to the shock-absorbing manhole cover structure provided by this utility model, the limiting plate includes: a first main body and a positioning plate, the lower part of the first main body is connected to the inner wall of the well barrel, and the upper part of the first main body is connected to the wellhead assembly; the positioning plate is vertically connected to the first main body, and the axial inner wall of the positioning plate abuts against the wellhead assembly, and the sub-limiting groove is formed between the first main body, the positioning plate and the wellhead assembly.

[0012] According to the shock-absorbing manhole cover structure provided by this utility model, the limiting component includes: an annular limiting cylinder, the lower part of the annular limiting cylinder being connected to the inner wall of the manhole cylinder, the upper part of the annular limiting cylinder being connected to the manhole opening component, and an annular limiting groove being formed circumferentially between the upper part of the manhole cylinder and the manhole opening component.

[0013] According to the shock-absorbing manhole cover structure provided by this utility model, the annular limiting cylinder includes: a second main body and a limiting outer edge, the lower part of the second main body is connected to the inner wall of the manhole cylinder, and the upper part of the second main body is connected to the manhole assembly; the limiting outer edge is perpendicularly connected to the outer wall of the second main body, and the axial inner wall of the limiting outer edge abuts against the manhole assembly, and the annular limiting groove is formed between the second main body, the limiting outer edge and the manhole assembly.

[0014] According to the shock-absorbing manhole cover structure provided by this utility model, the limiting component further includes: an anchor, the lower part of the limiting component is connected to the inner wall of the well barrel through the anchor, and the upper part of the limiting component is connected to the wellhead component through the anchor.

[0015] According to the shock-absorbing manhole cover structure provided by this utility model, the manhole assembly includes: a manhole ring and a manhole seat. The manhole ring is coaxially arranged with the manhole casing and is located at the upper end of the manhole casing. The manhole seat is coaxially arranged with the manhole ring and is embedded in the manhole ring. The lower part of the limiting component is connected to the inner wall of the manhole casing, and the upper part of the limiting component is connected to the manhole ring. An annular limiting groove is formed circumferentially between the upper part of the limiting component and the manhole seat.

[0016] The shock-absorbing manhole cover structure provided by this utility model, by setting a limiting component, can use the annular limiting groove formed between the fixed limiting component and the manhole opening component to limit and fix the annular buffer pad. When the annular buffer pad is placed in the annular limiting groove, its radial inner wall abuts against the radial outer wall of the limiting groove, and the radial outer wall abuts against the manhole opening component, which has a good limiting and fixing effect, can ensure positional stability during long-term use, and can effectively buffer and reduce shock for the manhole cover.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is one of the schematic diagrams of the shock-absorbing manhole cover structure provided in this embodiment of the utility model.

[0020] Figure 2 yes Figure 1 A magnified view of part A in the diagram.

[0021] Figure 3 This is the second schematic diagram of the shock-absorbing manhole cover structure provided in this embodiment of the utility model.

[0022] Figure label:

[0023] 100, Well shaft; 200, Wellhead assembly; 210, Well ring; 220, Well base; 300, Limiting assembly; 310, Limiting plate; 311, First main body; 312, Positioning plate; 320, Anchor; 400, Annular buffer pad; 500, Well cover; 600, Annular limiting groove. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0027] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0029] The following is combined Figures 1 to 3 This invention describes the shock-absorbing manhole cover structure provided by this utility model.

[0030] See Figures 1 to 3 As shown, the shock-absorbing manhole cover structure provided in this embodiment of the present invention includes: a manhole 100, a manhole opening assembly 200, a limiting assembly 300, an annular buffer pad 400, and a manhole cover 500.

[0031] The wellhead assembly 200 is coaxially arranged with the well casing 100 and located at the upper part of the well casing 100; the lower part of the limiting assembly 300 is connected to the inner wall of the well casing 100, and the upper part of the limiting assembly 300 is connected to the wellhead assembly 200. An annular limiting groove 600 is formed circumferentially between the upper part of the limiting assembly 300 and the wellhead assembly 200; an annular buffer pad 400 is disposed in the annular limiting groove 600, the radial inner wall of the annular buffer pad 400 abuts against the radial outer wall of the limiting groove, and the radial outer wall of the annular buffer pad 400 abuts against the wellhead assembly 200; the lower part of the well cover 500 abuts against the annular buffer pad 400.

[0032] The shock-absorbing manhole cover structure provided by this utility model, by setting a limiting component 300, can use the annular limiting groove 600 formed between the fixed limiting component 300 and the manhole assembly 200 to limit and fix the annular buffer pad 400. When the annular buffer pad 400 is set in the annular limiting groove 600, its radial inner wall abuts against the radial outer wall of the limiting groove, and its radial outer wall abuts against the manhole assembly 200, which has a good limiting and fixing effect, can ensure the stability of the position during long-term use, and can effectively buffer and reduce the shock of the manhole cover 500.

[0033] Specifically, the manhole assembly 200 is located at the upper part of the manhole casing 100, providing support and fixation for the manhole cover 500, ensuring that the manhole cover 500 can stably cover the opening of the manhole casing 100 and preventing it from shifting or falling off due to external forces (such as traffic vibrations, heavy object impacts, etc.). The lower part of the limiting assembly 300 is connected to the inner wall of the manhole casing 100, and the upper part is connected to the manhole assembly 200, forming an annular limiting groove 600 between the manhole assembly 200 and the limiting assembly 300 to accommodate the annular buffer pad 400, ensuring that the buffer pad will not move or fall off during use and always maintains a fixed position. The annular buffer pad 400 is a flexible pad (such as a rubber gasket), which can use its flexible deformation capability to provide cushioning and shock absorption for the manhole cover 500.

[0034] In some embodiments, the annular buffer pad 400 can be glued into the limiting groove to further enhance the stability of the annular buffer pad 400.

[0035] The wellhead assembly 200 includes a well ring 210 and a well seat 220. The well ring 210 is coaxially arranged with the well casing 100 and is located at the upper end of the well casing 100. The well seat 220 is coaxially arranged with the well ring 210 and is embedded in the well ring 210. The lower part of the limiting assembly 300 is connected to the inner wall of the well casing 100, and the upper part of the limiting assembly 300 is connected to the well ring 210. An annular limiting groove 600 is formed circumferentially between the upper part of the limiting assembly 300 and the well seat 220.

[0036] See Figure 2 and Figure 3 As shown, according to some embodiments of the present invention, the limiting component 300 includes: multiple limiting plates 310 arranged circumferentially, the lower part of the limiting plate 310 being connected to the inner wall of the wellbore 100, the upper part of the limiting plate 310 being connected to the wellhead component 200, a sub-limiting groove being formed between the upper part of the limiting plate 310 and the wellhead component 200, and all the sub-limiting grooves forming an annular limiting groove 600 circumferentially.

[0037] By configuring the limiting assembly 300 to include multiple limiting plates 310 arranged circumferentially, and utilizing the multiple sub-limiting grooves formed between the multiple limiting plates 310 and the wellhead assembly 200, the annular buffer pad 400 is limited and fixed at different parts along the circumferential direction, thereby achieving an effective limiting and fixing effect on the annular buffer pad 400. At the same time, the multiple limiting plates 310 have strong flexibility, allowing for the selection of different numbers / specifications of limiting plates 310 according to the specifications of the wellbore 100.

[0038] Specifically, the number of limit plates 310 can be set according to actual needs. Based on the size of the manhole cover 500, load requirements, and vibration characteristics, an appropriate number of limit plates 310 can be selected. Adjacent limit plates 310 can be set at intervals or adjacent to each other, without special restrictions.

[0039] When adjacent limiting plates 310 are spaced apart, the spacing between adjacent limiting plates 310 can be the same, that is, multiple limiting plates 310 are evenly spaced along the circumference to provide a uniform limiting and fixing effect on the annular buffer pad 400 along the circumference. Alternatively, the spacing between at least some adjacent limiting plates 310 can be different, that is, multiple limiting plates 310 are non-uniformly spaced along the circumference.

[0040] When adjacent limiting plates 310 are set adjacent to each other, it means that the corresponding sides of the adjacent limiting plates 310 are connected to each other. At this time, the limiting plates 310 can constrain each other to achieve auxiliary fixation and improve the fixation stability of the limiting plates 310. The corresponding sides of adjacent limiting plates 310 can be directly connected or connected by an intermediate connector, without special restrictions.

[0041] It is understandable that the specifications of multiple limit plates 310 can be the same or different, and there are no special restrictions on this.

[0042] The limiting plate 310 is preferably made of a material with strong corrosion resistance, such as stainless steel or corrosion-resistant plastics (such as polytetrafluoroethylene PTFE).

[0043] See Figure 2 and Figure 3 As shown, as an example, the limiting assembly 300 includes eight limiting plates 310, which are evenly spaced along the circumference.

[0044] See Figure 2 As shown, according to some embodiments of the present invention, the limiting plate 310 includes: a first main body 311 and a positioning plate 312. The lower part of the first main body 311 is connected to the inner wall of the well barrel 100, and the upper part of the first main body 311 is connected to the wellhead assembly 200. The positioning plate 312 is vertically connected to the first main body 311, and the axial inner wall of the positioning plate 312 abuts against the wellhead assembly 200. A sub-limiting groove is formed between the first main body 311, the positioning plate 312 and the wellhead assembly 200.

[0045] By setting the limiting plate 310 to a structure including a vertically connected first main body 311 and a positioning plate 312, the limiting plate 310 can be stably fixed as a whole by the first main body 311. At the same time, the first main body 311, the positioning plate 312 and the wellhead assembly 200 can be enclosed to form a sub-limiting groove, which effectively limits and fixes the annular buffer pad 400. Its structure is simple and can ensure the limiting and fixing effect.

[0046] The connection method between the first main body 311 and the positioning plate 312 can be selected according to the material of the limiting plate 310. For example, when the limiting plate 310 is made of metal, the first main body 311 and the positioning plate 312 can be connected by welding, and when corrosion-resistant plastic is used, they can be integrally molded by injection molding or other methods.

[0047] According to some embodiments of the present invention, the limiting component 300 includes: an annular limiting cylinder, the lower part of which is connected to the inner wall of the well casing 100, the upper part of which is connected to the wellhead component 200, and an annular limiting groove 600 is formed circumferentially between the upper part of the well casing 100 and the wellhead component 200.

[0048] By setting the limiting component 300 to the structure of an annular limiting cylinder, the overall integrity of the limiting component 300 can be improved while ensuring the limiting and fixing function of the annular buffer pad 400, and the installation steps of the limiting component 300 can be simplified.

[0049] Specifically, when the limiting component 300 is cylindrical, it can be placed inside the well casing 100 and fixed at once, without having to install and fix each component multiple times.

[0050] According to some embodiments of the present invention, an annular limiting cylinder includes: a second main body and a limiting outer edge. The lower part of the second main body is connected to the inner wall of the well casing 100, and the upper part of the second main body is connected to the wellhead assembly 200. The limiting outer edge is vertically connected to the outer wall of the second main body, and the axial inner wall of the limiting outer edge abuts against the wellhead assembly 200. An annular limiting groove 600 is formed between the second main body, the limiting outer edge, and the wellhead assembly 200.

[0051] By setting the annular limiting cylinder to a structure including a vertically connected second main body and a limiting outer edge, the annular limiting cylinder can be stably fixed by the second main body. At the same time, the second main body, the positioning plate 312 and the wellhead assembly 200 can be closed to form a sub-limiting groove, which effectively limits and fixes the annular buffer pad 400. Its structure is simple and can ensure the limiting and fixing effect.

[0052] Similarly, the connection method between the second main body and the positioning plate 312 can be selected according to the material of the limiting plate 310. For example, when the annular limiting cylinder is made of metal, the second main body and the positioning plate 312 can be connected by welding, and when corrosion-resistant plastic is used, it can be integrally molded by injection molding or other methods.

[0053] See Figure 1 and Figure 2 As shown, according to some embodiments of the present invention, the limiting component 300 further includes an anchor 320. The lower part of the limiting component 300 is connected to the inner wall of the well barrel 100 through the anchor 320, and the upper part of the limiting component 300 is connected to the wellhead component 200 through the anchor 320.

[0054] By fixing the upper and lower parts of the limiting component 300 with anchors 320, it can be ensured that the limiting component 300 will not loosen or even fall off during long-term use, thereby ensuring the installation stability of the annular buffer pad 400.

[0055] Specifically, the anchor 320 can be an anchoring nail, anchoring screw, rivet or pin, etc., without any special restrictions.

[0056] As an example, in this embodiment, the anchor 320 is an anchoring stud.

[0057] The installation method of the shock-absorbing manhole cover structure provided by this utility model is described below. (See attached image.) Figures 1 to 3 As shown.

[0058] During installation, firstly, anchor multiple limiting plates 310 into the well according to the set arrangement. Then, place the annular buffer pad 400 in the limiting groove and fix it with adhesive. Finally, place the well cover 500 at the well opening position, so that its lower end abuts against the axial outer wall of the annular buffer pad 400.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A shock-absorbing manhole cover structure, characterized by, include: Shaft(100); Wellhead assembly (200), which is coaxially arranged with the wellbore (100) and located at the upper part of the wellbore (100); A limiting component (300) is provided, the lower part of which is connected to the inner wall of the wellbore (100), the upper part of which is connected to the wellhead component (200), and an annular limiting groove (600) is formed circumferentially between the upper part of the limiting component (300) and the wellhead component (200). An annular buffer pad (400) is disposed within the annular limiting groove (600), the radial inner wall of the annular buffer pad (400) abuts against the radial outer wall of the limiting groove, and the radial outer wall of the annular buffer pad (400) abuts against the wellhead assembly (200). The manhole cover (500) has its lower part abutting against the annular buffer pad (400).

2. The shock attenuation manhole cover structure of claim 1, wherein, The limiting component (300) includes: Multiple limiting plates (310) are arranged circumferentially. The lower part of the limiting plate (310) is connected to the inner wall of the wellbore (100), and the upper part of the limiting plate (310) is connected to the wellhead assembly (200). A sub-limiting groove is formed between the upper part of the limiting plate (310) and the wellhead assembly (200). All the sub-limiting grooves form the annular limiting groove (600) circumferentially.

3. The shock attenuation manhole cover structure of claim 2, wherein, Multiple limiting plates (310) are arranged at intervals along the circumference.

4. The shock attenuation manhole cover structure of claim 3, wherein, The spacing between adjacent limiting plates (310) is the same.

5. The shock attenuation manhole cover structure of claim 2, wherein, The adjacent limiting plates (310) are connected to each other.

6. The shock attenuation manhole cover structure of claim 2, wherein, The limiting plate (310) includes: The first main body (311) has its lower part connected to the inner wall of the wellbore (100) and its upper part connected to the wellhead assembly (200). The positioning plate (312) is vertically connected to the first main body (311), and the axial inner wall of the positioning plate (312) abuts against the wellhead assembly (200). The sub-limiting groove is formed between the first main body (311), the positioning plate (312) and the wellhead assembly (200).

7. The shock attenuation manhole cover structure of claim 1, wherein, The limiting component (300) includes: An annular limiting cylinder, the lower part of which is connected to the inner wall of the well casing (100), the upper part of which is connected to the wellhead assembly (200), and an annular limiting groove (600) is formed circumferentially between the upper part of the well casing (100) and the wellhead assembly (200).

8. The shock attenuation manhole cover structure of claim 7, wherein, The annular limiting cylinder includes: The second main body is connected to the inner wall of the wellbore (100) at its lower part and to the wellhead assembly (200) at its upper part. The limiting outer edge is perpendicularly connected to the outer wall of the second main body, and the axial inner wall of the limiting outer edge abuts against the wellhead assembly (200). The annular limiting groove (600) is formed between the second main body, the limiting outer edge and the wellhead assembly (200).

9. The shock-absorbing manhole cover structure according to claim 1, characterized in that, The limiting component (300) further includes: Anchor (320), the lower part of the limiting component (300) is connected to the inner wall of the wellbore (100) through the anchor (320), and the upper part of the limiting component (300) is connected to the wellhead component (200) through the anchor (320).

10. The shock-absorbing manhole cover structure according to claim 1, characterized in that, The wellhead assembly (200) includes: Well ring (210), the well ring (210) is coaxially arranged with the well casing (100) and located at the upper end of the well casing (100); The well base (220) is coaxially arranged with the well ring (210). The well base (220) is embedded in the well ring (210). The lower part of the limiting component (300) is connected to the inner wall of the well barrel (100). The upper part of the limiting component (300) is connected to the well ring (210). The upper part of the limiting component (300) and the well base (220) form the annular limiting groove (600) in the circumferential direction.

Images