Anti-falling structure of inspection well cover

By setting up a combined structure of card slot, limit slot and block-proof on the manhole cover, the problem of vibration and ripping or lifting of the manhole cover is solved, and the manhole cover is stable and conveniently disassembled and has filtering function.

CN223189733UActive Publication Date: 2025-08-05HANGZHOU HONGTU ROAD FACILITIES CO LTD
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Patent Information

Application Number
CN202421725385.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-22
Publication Date
2025-08-05
Estimated Expiration
2034-07-22

AI Technical Summary

Technical Problem

Existing manhole covers are prone to rush or lift up due to vibration when the vehicle passes, which poses safety hazards.

Method used

A combined structure of card slot, limit slot and block-proof block are installed on the manhole cover. The handle drives the block-proof block to rotate between the card slot and limit slot to achieve the effective limit of the manhole cover, and combines the filter plate to perform dirty filtering.

Benefits of technology

Effectively prevent manhole cover from falling off, reduce safety hazards, and facilitate disassembly and replacement of manhole covers, and also has filtering function.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223189733U_ABST
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Abstract

The utility model discloses an anti-falling structure of an inspection well lid, and belongs to the field of well lids. Comprising a well lid body, the well lid body is mounted at the top of the inner wall of an inspection well, and a plurality of mounting grooves are formed in the well lid body; an anti-disengaging assembly is arranged at the top position of the inner wall of the inspection well and comprises a plurality of fixing plates fixedly connected to the inner wall of the inspection well, each fixing plate is provided with a clamping groove and a limiting groove which are communicated, one side of each fixing plate is fixedly connected with a connecting rod, and the inner wall of the mounting groove is rotationally connected with a rotating rod. The anti-falling structure of the inspection well cover has the beneficial effect that the anti-falling structure of the inspection well cover can effectively prevent the inspection well cover from falling off.
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Description

Technical Field

[0001] The present application relates to the field of manhole covers, and in particular to an anti-fall-off structure for manhole covers. Background Art

[0002] Urban construction involves numerous underground pipelines, such as sewers, gas lines, water lines, power lines, communications lines, and defense lines. These pipelines often have an outlet to the surface. This section of the pipeline that reaches the surface is called a manhole. Manhole openings are usually flush with the ground, so they require a cover. Manhole covers are typically made of reinforced concrete, metal, reinforced plastic, and other materials, and are typically round or square in shape.

[0003] In the prior art, a Chinese patent with application number CN202021504744.4 discloses a multifunctional manhole cover, which belongs to the field of manhole covers and includes a manhole seat, a manhole cover groove is provided at the upper end of the manhole seat, and anti-slip grooves are respectively provided on the left and right sides of the lower end of the manhole seat. A manhole cover is placed inside the manhole cover groove, and the manhole cover is provided with a through hole. The inner upper end of the through hole is evenly fixedly connected with a reinforcement rod, the inner lower end of the through hole is fixedly connected with a filter plate, the lower end of the manhole cover is fixedly connected with anti-slip rods on the left and right sides, and a retaining ring is fixedly connected to the inside of the manhole seat, a bracket is placed on the upper end of the retaining ring, the bracket is fixedly connected to the filter, and the upper end of the retaining ring is fixedly connected with an insertion rod on the left and right sides.

[0004] In the above application, in order to prevent the manhole cover from being stolen, an anti-slip groove and an anti-slip rod are provided. The anti-slip rod is fixedly connected to the manhole cover and is slidably connected to the anti-slip groove. When the manhole cover is in normal use, vehicles often pass through the manhole cover. Since the anti-slip rod and the anti-slip groove are slidably connected, when a vehicle passes through the manhole cover, the vibration caused by the vehicle on the ground and the manhole cover may cause the manhole cover to move or even tilt, posing a safety hazard. To this end, this application proposes a manhole cover anti-slip structure. Utility Model Content

[0005] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0006] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a manhole cover anti-drop structure, including a manhole cover, the manhole cover is installed at the top position of the inner wall of the manhole, and a plurality of mounting grooves are opened on the manhole cover;

[0007] The top position of the inner wall of the manhole is provided with an anti-slip assembly, and the anti-slip assembly includes a plurality of fixing plates fixedly connected to the inner wall of the manhole, each of the fixing plates is provided with a connected card slot and a limit slot, one side of the fixing plate is fixedly connected to a connecting rod, the inner wall of the mounting slot is rotatably connected to the rotating rod, the bottom of the rotating rod is fixedly connected to an anti-slip block, the top of the rotating rod is fixedly connected to a handle, the handle is provided with a fixing hole, the inner wall of the mounting slot is fixedly connected to a fixing block, the fixing block is provided with a fixing slot, one side of the handle abuts against the inner wall of the fixing slot, and the fixing block and the handle are fixedly connected by fixing bolts and the fixing holes; it also includes a filter assembly, the filter assembly includes a connecting plate and a filter plate, and the connecting plate is hung with the connecting rod through a second connecting slot.

[0008] During the working process or installation process, due to the coordinated use of the card slot, the limit slot and the anti-slip block, the handle drives the anti-slip block to rotate from a horizontal direction with the card slot to a vertical direction with the card slot, thereby effectively limiting the manhole cover, so that the manhole cover is tightly attached to the manhole. When a vehicle passes by the manhole cover, the vibration generated on the ground and the manhole cover will not cause the manhole cover to move or even tilt, effectively reducing the safety hazard of the manhole cover.

[0009] Furthermore, a positioning groove is provided on the handle, and a positioning rod is fixedly connected to the inner wall of the mounting groove, and the positioning groove is adapted to the positioning rod.

[0010] Furthermore, a first connecting groove is provided on the connecting plate, the first connecting groove is communicated with the second connecting groove, a plurality of filter holes are provided on the filter plate, and the filter plate is fixedly connected to the bottom of the connecting plate.

[0011] Furthermore, the bottom of the anti-slip block is provided with a rectangular chamfer.

[0012] Furthermore, a plurality of anti-slip grooves are provided on the handle.

[0013] Furthermore, the size of the locking slot is slightly larger than the size of the anti-slip block, and the diameter of the limiting slot is the same as the diameter of the anti-slip block.

[0014] Furthermore, the connecting rod has a T-shaped structure, and the size of the first connecting groove is slightly larger than the maximum diameter of the connecting rod.

[0015] Furthermore, the filter plate is made of metal.

[0016] The beneficial effect of the present application is that it provides a manhole cover anti-falling structure that can effectively prevent the manhole cover from falling off.

[0017] By cooperating with the provided card slot, limit slot and anti-slip block, when in use, the manhole cover is placed on the manhole, so that the anti-slip block moves down along the card slot to the bottom of the anti-slip block and abuts against the bottom of the inner wall of the limit slot, the handle can be rotated to one side of the handle to abut against the inner wall of the fixing slot, and the fixing block and the handle are fixed with a fixing bolt to achieve the effect of limiting and fixing the handle. At this time, the handle drives the anti-slip block to rotate from a horizontal direction with the card slot to a vertical direction with the card slot, thereby effectively limiting the manhole cover, making the manhole cover fit tightly against the manhole, and when a vehicle passes by the manhole cover, the vibration generated on the ground and the manhole cover will not cause the manhole cover to move or even tilt, thereby effectively reducing the safety hazard of the manhole cover.

[0018] The present application uses the positioning rod and positioning slot in combination. When dismantling the manhole cover, the fixing bolt is removed and the handle is rotated until the positioning slot abuts the positioning rod. The anti-slip block is then rotated to return to its original position, and the manhole cover can be lifted upward to achieve dismantling or replacement of the manhole cover, which can achieve an effective positioning effect.

[0019] The filter plate set in this application can effectively filter the dirt flowing into the manhole cover when in use. During installation, the first connecting groove is aligned with the connecting rod, and then the connecting plate is moved downward so that the second connecting groove is hooked to the connecting rod to achieve the installation of the filter plate. The installation is easy and convenient to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0021] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0022] In the attached figure:

[0023] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0024] Figure 2 is an overall schematic diagram according to an embodiment of the present application;

[0025] Figure 3 is a partially cutaway enlarged overall schematic diagram according to an embodiment of the present application;

[0026] Figure 4 1 is a schematic diagram of the assembly of a manhole, a fixing plate and a connecting rod according to an embodiment of the present application;

[0027] Figure 5This is a schematic diagram of the assembly of the connecting plate and the filter plate according to an embodiment of the present application;

[0028] Figure 6 yes Figure 2 Magnified view of part A.

[0029] Reference numerals:

[0030] 1. Manhole; 2. Manhole cover; 3. Mounting slot; 4. Fixing plate; 5. Slot; 6. Limiting slot; 7. Connecting rod; 8. Rotating rod; 9. Anti-slip block; 10. Handle; 11. Positioning slot; 12. Fixing hole; 13. Positioning rod; 14. Fixing block; 15. Fixing slot; 16. Connecting plate; 17. First connecting slot; 18. Second connecting slot; 19. Filter plate; 20. Filter hole. DETAILED DESCRIPTION

[0031] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0032] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0033] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0035] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0036] refer to Figures 1-6, a manhole cover anti-slip structure, including a manhole cover 2, the manhole cover 2 is installed at the top position of the inner wall of the manhole 1, a plurality of mounting slots 3 are opened on the manhole cover 2, an anti-slip assembly is provided at the top position of the inner wall of the manhole 1, the anti-slip assembly includes a plurality of fixing plates 4 fixedly connected to the inner wall of the manhole 1, each fixing plate 4 is provided with a connected card slot 5 and a limit slot 6, one side of the fixing plate 4 is fixedly connected to a connecting rod 7, the inner wall of the mounting slot 3 is rotatably connected to a rotating rod 8, the bottom of the rotating rod 8 is fixedly connected to an anti-slip block 9, the top of the rotating rod 8 is fixedly connected to a handle 10, a fixing hole 12 is opened on the handle 10, the inner wall of the mounting slot 3 is fixedly connected to a fixing block 14, the fixing block 14 is opened on the fixing slot 15, one side of the handle 10 abuts against the inner wall of the fixing slot 15, and the fixing block 14 and the handle 10 are fixed by fixing bolts and fixing holes 12 The filter assembly includes a connecting plate 16 and a filter plate 19, and the connecting plate 16 is hung with the connecting rod 7 through the second connecting groove 18, so that the manhole cover 2 is covered on the manhole 1, so that the anti-slip block 9 moves down along the slot 5 to the bottom of the anti-slip block 9 and abuts against the bottom of the inner wall of the limiting slot 6. The handle 10 can be rotated to one side of the handle 10 to abut against the inner wall of the fixing slot 15, and the fixing bolt is used to fix the fixing block 14 and the handle 10 to achieve the limiting and fixing effect of the handle 10. At this time, the handle 10 drives the anti-slip block 9 to rotate from a horizontal direction with the slot 5 to a vertical direction with the slot 5, thereby effectively limiting the manhole cover 2, so that the manhole cover 2 is tightly attached to the manhole 1. When a vehicle passes through the manhole cover 2, the vibration generated on the ground and the manhole cover 2 will not drive the manhole cover 2 to move or even tilt, effectively reducing the safety hazard of the manhole cover 2.

[0037] In this embodiment, a positioning groove 11 is provided on the handle 10, and a positioning rod 13 is fixedly connected to the inner wall of the mounting groove 3. The positioning groove 11 is adapted to the positioning rod 13. When the manhole cover 2 is removed, the fixing bolt is removed and the handle 10 is rotated until the positioning groove 11 abuts against the positioning rod 13. The anti-slip block 9 is rotated to return to its original position, and the manhole cover 2 can be lifted upward to achieve the removal or replacement of the manhole cover 2, which can achieve an effective positioning effect.

[0038] Furthermore, a first connecting groove 17 is provided on the connecting plate 16, and the first connecting groove 17 is connected to the second connecting groove 18. A plurality of filter holes 20 are provided on the filter plate 19, and the filter plate 19 is fixedly connected to the bottom of the connecting plate 16. The connecting plate 16 can be made of plastic or rubber. The filter plate 19 can effectively filter the dirt flowing into the manhole cover 2 when in use. During installation, the first connecting groove 17 is aligned with the connecting rod 7, and then the connecting plate 16 is moved downward so that the second connecting groove 18 is hung with the connecting rod 7 to realize the installation of the filter plate 19. The installation is convenient and easy to disassemble.

[0039] Furthermore, a rectangular chamfer is provided at the bottom of the anti-slip block 9 to facilitate insertion of the anti-slip block 9 into the card slot 5 and the limiting slot 6 .

[0040] Furthermore, a plurality of anti-slip grooves are provided on the handle 10 , and the anti-slip grooves can effectively increase the friction between the user's hand and the handle 10 , thereby improving the comfort of using the handle 10 .

[0041] Furthermore, the size of the slot 5 is slightly larger than the size of the anti-slip block 9, and the diameter of the limiting slot 6 is the same as the diameter of the anti-slip block 9, which facilitates the anti-slip block 9 to be inserted into the slot 5 and the limiting slot 6, and facilitates the anti-slip block 9 to rotate in the limiting slot 6.

[0042] Furthermore, the connecting rod 7 is in a T-shaped structure, and the size of the first connecting groove 17 is slightly larger than the maximum diameter of the connecting rod 7. The T-shaped structure facilitates the hooking of the connecting plate 16, making the installation of the connecting plate 16 easy and convenient.

[0043] Furthermore, the filter plate 19 is made of metal, preferably stainless steel, which has good corrosion resistance and can increase the service life of the filter plate 19.

[0044] The anti-slip structure of the manhole cover is used when the manhole cover 2 is covered on the manhole 1, so that the anti-slip block 9 moves down along the slot 5 to the bottom of the anti-slip block 9 and abuts against the bottom of the inner wall of the limiting slot 6. The handle 10 can be rotated until one side of the handle 10 abuts against the inner wall of the fixing slot 15, and the fixing block 14 and the handle 10 are fixed with a fixing bolt to achieve the limiting and fixing effect of the handle 10. At this time, the handle 10 drives the anti-slip block 9 to rotate from a horizontal direction with the slot 5 to a vertical direction with the slot 5, thereby effectively limiting the manhole cover 2, making the manhole cover 2 close to the manhole 1. When a vehicle passes by the manhole cover 2, the vibration generated on the ground and the manhole cover 2 will not drive The manhole cover 2 moves or even tilts up, which effectively reduces the safety hazard of the manhole cover 2. When disassembling the manhole cover 2, the fixing bolts are removed and the handle 10 is rotated until the positioning groove 11 abuts the positioning rod 13. The anti-slip block 9 is rotated to restore its original position, and the manhole cover 2 can be lifted up to achieve the disassembly or replacement of the manhole cover 2, which can play an effective positioning effect. The filter plate 19 provided can effectively filter the dirt flowing into the manhole cover 2 when in use. During installation, the first connecting groove 17 is aligned with the connecting rod 7, and the connecting plate 16 is moved downward so that the second connecting groove 18 is hung with the connecting rod 7 to achieve the installation of the filter plate 19. It is easy to install and easy to disassemble.

[0045] The above description is only an illustration of some preferred embodiments of the present disclosure and the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A manhole cover anti-fall structure, comprising: A manhole cover (2) is installed at the top of the inner wall of the manhole (1), and a plurality of mounting grooves (3) are provided on the manhole cover (2), characterized in that: An anti-slip assembly is provided at the top position of the inner wall of the manhole (1), and the anti-slip assembly comprises a plurality of fixing plates (4) fixedly connected to the inner wall of the manhole (1), each fixing plate (4) is provided with a connected card slot (5) and a limit slot (6), one side of the fixing plate (4) is fixedly connected to a connecting rod (7), the inner wall of the installation slot (3) is rotatably connected to a rotating rod (8), the bottom of the rotating rod (8) is fixedly connected to an anti-slip block (9), the top of the rotating rod (8) is fixedly connected to a handle (10), the handle (10) is provided with a fixing hole (12), the inner wall of the installation slot (3) is fixedly connected to a fixing block (14), the fixing block (14) is provided with a fixing slot (15), one side of the handle (10) abuts against the inner wall of the fixing slot (15), and the fixing block (14) and the handle (10) are fixedly connected by fixing bolts and the fixing holes (12); It also includes a filter assembly, which includes a connecting plate (16) and a filter plate (19). The connecting plate (16) is connected to the connecting rod (7) through a second connecting groove (18).

2. The anti-drop structure for manhole covers according to claim 1, characterized in that: A positioning groove (11) is provided on the handle (10), a positioning rod (13) is fixedly connected to the inner wall of the installation groove (3), and the positioning groove (11) is adapted to the positioning rod (13).

3. The anti-drop structure for manhole covers according to claim 1, characterized in that: The connecting plate (16) is provided with a first connecting groove (17), the first connecting groove (17) is communicated with the second connecting groove (18), the filter plate (19) is provided with a plurality of filter holes (20), and the filter plate (19) is fixedly connected to the bottom of the connecting plate (16).

4. The anti-drop structure for manhole covers according to claim 1, characterized in that: The bottom of the anti-fall-off block (9) is provided with a rectangular chamfer.

5. The anti-drop structure for manhole covers according to claim 1, characterized in that: The handle (10) is provided with a plurality of anti-slip grooves.

6. The anti-drop structure for manhole covers according to claim 1, characterized in that: The size of the clamping slot (5) is slightly larger than the size of the anti-slip block (9), and the diameter of the limiting slot (6) is the same as the diameter of the anti-slip block (9).

7. The anti-drop structure for manhole covers according to claim 3, characterized in that: The connecting rod (7) has a T-shaped structure, and the size of the first connecting groove (17) is slightly larger than the maximum diameter of the connecting rod (7).

8. The anti-drop structure for manhole covers according to claim 1, characterized in that: The filter plate (19) is made of metal.

Citation Information

Patent Citations

  • Multifunctional inspection well lid

    CN212956637U