Manhole cover processing fixing device
By using the clamping and snapping components of the manhole cover processing fixing device, the problem of manhole covers being easily lost or detached in heavy rain is solved, achieving a stable connection between the manhole cover and the manhole ring, improving safety and stability, and adapting to diverse usage scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIQIAO FOUNDRY IND CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-02
AI Technical Summary
Existing manhole covers are prone to being lost or dislodged during heavy rain, increasing the risk of pedestrians or vehicles falling in and posing a safety hazard.
A fixing device for manhole cover processing is adopted, including a manhole ring, a clamping component and a snap-fit component. The clamping component and the snap-fit component are respectively set at both ends of the manhole ring. Multiple sets of clamping elements and snap-fit elements are used to achieve a stable connection between the manhole cover and the manhole ring, and enhance the clamping force and snap-fit fixation.
Ensures a secure connection between the manhole cover and the manhole ring, reduces shaking and displacement, improves safety and stability, adapts to the needs of different usage scenarios, has strong applicability, and ensures a tight connection during the manhole cover manufacturing process.
Smart Images

Figure CN224314245U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of manhole cover technology, specifically a fixing device for manhole cover processing. Background Technology
[0002] Manhole covers are very common in our lives. They are usually made of reinforced concrete, metal, reinforced plastic and other materials. They are mainly round and square in shape. They are mainly used at the outlets of sewers, underground gas pipelines, water pipes, power pipelines, communication pipelines and other pipelines that connect to the ground to prevent people or objects from falling into the pipeline. Manhole covers can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers and so on, according to their materials.
[0003] The current method of installing manhole covers involves directly installing the cover onto the base. This method has significant drawbacks. During heavy rain, manhole covers are frequently lost or washed away. Furthermore, manhole covers are prone to detaching from their original position after prolonged use. In some areas, the frequent loss of manhole covers greatly increases the probability of pedestrians or vehicles accidentally falling into them, leading to numerous accidents and other safety hazards. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a fixing device for manhole cover processing. This solves the problem that existing manhole cover installations directly install the manhole cover onto the base, which has significant drawbacks. In heavy rain, manhole covers are frequently lost or washed away. Moreover, manhole covers are prone to detaching from their original position after long-term use, and in some areas, manhole cover loss incidents are common, greatly increasing the probability of pedestrians or vehicles accidentally falling into them, thus causing many sudden accidents and other safety hazards.
[0005] The technical solution adopted by this utility model is: a fixing device for manhole cover processing, including a manhole ring, a manhole cover, a clamping assembly, and a snap-fit assembly. The manhole cover is disposed on the manhole ring, and the clamping assembly and the snap-fit assembly are respectively disposed at both ends of the manhole ring. The clamping assembly and the snap-fit assembly are used to clamp and fix the manhole cover to the manhole ring. The clamping assembly includes a first clamping element and a second clamping element. The first clamping element is disposed on the manhole cover, and the second clamping elements are disposed on both sides of the manhole ring close to the first clamping element. Multiple sets of the second clamping elements are provided, and the snap-fit assembly is disposed between two adjacent sets of the second clamping elements for clamping and fixing the manhole cover and the manhole ring and / or snap-fit fixing.
[0006] A further improvement to the above scheme is that an installation ring is provided on the outer edge of the well ring, and the clamping assembly and the snap-fit assembly are provided on the installation ring.
[0007] A further improvement to the above solution is that the manhole cover is arc-shaped, and the height of the manhole cover is the same as the height of the clamping assembly and the snap-fit assembly.
[0008] A further improvement to the above solution is that an adsorption ring is provided on the upper surface of the manhole cover, the first pressing element is disposed on the adsorption ring, and the second pressing element performs pressing activities along with the first pressing element.
[0009] A further improvement to the above solution is that the first pressing element includes a first pressing head, a first pressing rod, and a first pressing valve. The first pressing head is disposed on the first pressing rod, the first pressing valve is sleeved on the first pressing rod, and the outer surface of the first pressing rod is provided with a drive thread. The first pressing valve performs a pressing action along the drive thread.
[0010] A further improvement to the above solution is that the second clamping element includes a second pressure rod and a second pressure head. The second pressure head is disposed on the second pressure rod and moves on the second pressure rod. The second pressure head clamps and fixes the well cover toward the well ring along the second pressure rod.
[0011] A further improvement to the above solution is that the second clamping element further includes an auxiliary mounting block and an auxiliary locking block; the auxiliary mounting block is disposed on the outside of the well ring, one end of the auxiliary locking block is disposed on the auxiliary mounting block, and the other end is disposed on the well cover; the auxiliary locking block is an L-shaped block.
[0012] A further improvement to the above scheme is that one end of the second pressure rod passes through the auxiliary locking block and is mounted on the auxiliary mounting block, and the second pressure head slides along the second pressure rod.
[0013] A further improvement to the above solution is that the snap-fit assembly includes an assembly element and a snap block, the snap block being movably disposed on the assembly element; the assembly element includes an assembly frame and an assembly shaft, the snap block being disposed near the assembly frame with an assembly shaft, the assembly shaft cooperating with the assembly shaft.
[0014] A further improvement to the above solution is that the assembly frame is disposed on the outer wall of the well ring, the locking block is disposed on the assembly frame, one end of the locking block is provided with an embedding block, and one end of the embedding block is disposed between the well ring and the well cover.
[0015] The beneficial effects of this utility model are:
[0016] Compared to existing manhole covers, this utility model reliably presses and fixes the manhole cover onto the manhole ring by setting a clamping component and a snap-fit component at both ends of the manhole ring. This ensures a stable connection between the manhole cover and the manhole ring. The first clamping element of the clamping component is located on the manhole cover, while multiple sets of second clamping elements are located on both sides of the manhole ring. These elements can be used to clamp the manhole cover from two different positions, enhancing the clamping force and making the manhole cover less prone to shaking or displacement. The snap-fit component is located between two adjacent sets of second clamping elements. It can work in conjunction with the clamping component to further press and fix the manhole cover and the manhole ring, and it can also snap the manhole cover and the manhole ring together. This provides a variety of fixing methods to adapt to different usage scenarios and needs. It has strong applicability and stability, ensuring that the manhole cover and the manhole ring maintain a tight and stable connection during the manhole cover manufacturing process, making it highly practical. Attached Figure Description
[0017] Figure 1 This is a perspective view of the fixing device for manhole cover processing according to this utility model;
[0018] Figure 2 This is a top view of the fixing device for manhole cover processing according to this utility model;
[0019] Figure 3 for Figure 2 Sectional view at point AA.
[0020] Explanation of reference numerals in the attached drawings: Well ring 10, mounting ring 11;
[0021] Manhole cover 20, suction ring 21;
[0022] The clamping assembly 30, the first clamping element 31, the first pressure head 311, the first pressure rod 312, the first pressure valve 313, the second clamping element 32, the second pressure rod 321, the second pressure head 322, the auxiliary mounting block 323, and the auxiliary locking block 324;
[0023] Snap-fit assembly 40, assembly element 41, assembly frame 411, assembly shaft 412, snap block 42, assembly shaft 421, and insert block 422. Detailed Implementation
[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0025] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.
[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
[0027] like Figure 1-3 As shown in the embodiment of this utility model, a fixing device for manhole cover processing includes a manhole ring 10, a manhole cover 20, a clamping assembly 30, and a snap-fit assembly 40. The manhole cover 20 is disposed on the manhole ring 10. The clamping assembly 30 and the snap-fit assembly 40 are respectively disposed at both ends of the manhole ring 10. The clamping assembly 30 and the snap-fit assembly 40 are used to clamp and fix the manhole cover 20 to the manhole ring 10. The clamping assembly 30 includes a first clamping element 31 and a second clamping element 32. The first clamping element 31 is disposed on the manhole cover 20, and the second clamping element 32 is disposed on both sides of the manhole ring 10 near the first clamping element 31. Multiple sets of the second clamping elements 32 are provided, and the snap-fit assembly 40 is disposed between two adjacent sets of the second clamping elements 32 for clamping and fixing the manhole cover 20 and the manhole ring 10 and / or snap-fit fixing. In this embodiment, by setting a clamping component 30 and a snap-fit component 40 at both ends of the manhole ring 10, the manhole cover 20 can be reliably clamped and fixed to the manhole ring 10, ensuring a stable connection between the manhole cover 20 and the manhole ring 10. The first clamping element 31 of the clamping component 30 is set on the manhole cover 20, and the second clamping element 32 is set on both sides of the manhole ring 10 in multiple sets, which can cooperate to clamp the manhole cover 20 and the manhole ring 10 from two different positions, enhancing the clamping force on the manhole cover 20 and making the manhole cover 20 less prone to shaking or displacement. The snap-fit component 40 is set between two adjacent sets of second clamping elements 32, which can work together with the clamping component 30 to further clamp and fix the manhole cover 20 and the manhole ring 10, and can also snap and fix the manhole cover 20 and the manhole ring 10, providing a variety of fixing methods to adapt to different usage scenarios and needs. It has strong applicability and stability, ensuring that the manhole cover 20 and the manhole ring 10 maintain a tight and stable connection during the processing of the manhole cover 20, and has strong practicality.
[0028] like Figure 1As shown, an installation ring 11 is provided on the outer edge of the manhole cover 10, and the clamping assembly 30 and the snap-fit assembly 40 are mounted on the installation ring 11. In this embodiment, the installation ring 11 provides a stable mounting base for the clamping assembly 30 and the snap-fit assembly 40, ensuring the stability of the installation of each component, preventing loosening or displacement during use, and ensuring accurate positioning of the manhole cover 20 during processing.
[0029] The manhole cover 20 is arc-shaped, and its height is the same as that of the clamping assembly 30 and the snap-fit assembly 40. In this embodiment, the arc-shaped manhole cover 20 can better disperse the pressure from above, enhancing its pressure resistance. Furthermore, the fact that the height of the manhole cover 20 is the same as that of the clamping assembly 30 and the snap-fit assembly 40 makes the entire fixing device structure more compact and reasonable, ensuring the smooth passage of pedestrians and vehicles, and improving overall practicality and safety.
[0030] like Figure 2 As shown, an adsorption ring 21 is provided on the upper surface of the manhole cover 20. The first pressing element 31 is disposed on the adsorption ring 21, and the second pressing element 32 performs pressing activities along with the first pressing element 31. In this embodiment, the adsorption ring 21 can enhance the connection stability between the device and the manhole cover 20, making the manhole cover 20 less prone to shaking or displacement during processing, thus ensuring processing accuracy. The first pressing element 31, disposed on the adsorption ring 21, provides a stable support point for subsequent pressing operations. The second pressing element 32, performing pressing activities along with the first pressing element 31, can achieve uniform and reliable pressing of the manhole cover 20, ensuring that the manhole cover 20 is in a stable state during processing, avoiding the impact of loosening on processing quality, and improving the stability and reliability of the entire processing process.
[0031] like Figure 3 As shown, the first clamping element 31 includes a first pressure head 311, a first pressure rod 312, and a first pressure valve 313. The first pressure head 311 is disposed on the first pressure rod 312, and the first pressure valve 313 is sleeved on the first pressure rod 312. The outer surface of the first pressure rod 312 is provided with a drive thread, and the first pressure valve 313 performs clamping activities along the drive thread. In this embodiment, by disposing of the first pressure head 311 on the first pressure rod 312, force can be precisely applied to the processed part of the manhole cover 20 to ensure accurate fixing position; by sleeved on the first pressure rod 312 and clamping activities are achieved through the drive thread of the first pressure valve 313, this threaded fit design makes the clamping operation more flexible and precise. The operator can easily adjust the clamping force by rotating the first pressure valve 313 according to actual needs to adapt to the processing and fixing requirements of manhole covers 20 of different sizes and materials.
[0032] The second clamping element 32 includes a second clamping rod 321 and a second clamping head 322. The second clamping head 322 is disposed on the second clamping rod 321 and moves along the second clamping rod 321 to clamp and fix the manhole cover 20 toward the manhole ring 10. In this embodiment, by movably disposing of the second clamping head 322 on the second clamping rod 321, adjustments can be made according to the different compatibility of the manhole cover 20 and the manhole ring 10. Furthermore, by moving the second clamping head 322 along the second clamping rod 321, the manhole cover 20 can be precisely clamped and fixed toward the manhole ring 10. This better adapts to manhole covers 20 and manhole rings 10 of different specifications and states, ensuring a tight fit between the two and improving the stability and sealing of the manhole cover 20 installation.
[0033] The second clamping element 32 also includes an auxiliary mounting block 323 and an auxiliary locking block 324. The auxiliary mounting block 323 is disposed on the outside of the manhole ring 10, and one end of the auxiliary locking block 324 is disposed on the auxiliary mounting block 323, and the other end is disposed on the manhole cover 20. The auxiliary locking block 324 is an L-shaped block. In this embodiment, the auxiliary mounting block 323 in the second clamping element 32 is disposed on the outside of the manhole ring 10, which serves as a stable installation foundation and provides a reliable attachment point for the auxiliary locking block 324, ensuring that the entire structure is tightly connected to the manhole ring 10. The auxiliary locking block 324, with one end on the auxiliary mounting block 323 and the other end on the manhole cover 20, enhances the fit and stability between the manhole cover 20 and the manhole ring 10, preventing the manhole cover 20 from shaking or shifting during use, thereby improving the safety and reliability of the manhole cover 20.
[0034] One end of the second pressure rod 321 passes through the auxiliary locking block 324 and is mounted on the auxiliary mounting block 323. The second pressure head 322 slides along the second pressure rod 321. In this embodiment, by having one end of the second pressure rod 321 pass through the auxiliary locking block 324 and be mounted on the auxiliary mounting block 323, the second pressure head 322 can slide along the second pressure rod 321, making the position of the second pressure head 322 flexible. It can accurately change the position of the second pressure head 322 according to the size, shape, and processing requirements of different manhole covers 20, thereby effectively fixing manhole covers 20 of different specifications. The sliding setting enhances the adaptability of the device. When facing complex and diverse processing procedures, the height and angle of the second pressure head 322 can be easily adjusted, improving the versatility and practicality of the device.
[0035] The snap-fit assembly 40 includes an assembly element 41 and a snap-fit block 42, the snap-fit block 42 being movably disposed on the assembly element 41. The assembly element 41 includes an assembly frame 411 and an assembly shaft 412, the snap-fit block 42 being positioned close to the assembly frame 411 with the assembly shaft 421 engaging with the assembly shaft 412. In this embodiment, the snap-fit block 42 being movably disposed on the assembly element 41 allows for flexible position adjustment during use, better adapting to the fixing requirements of manhole covers 20 of different sizes or shapes, thus improving the versatility of the device. The engagement of the assembly shaft 421 with the assembly shaft 412 ensures the stability and accuracy of the connection between the snap-fit block 42 and the assembly element 41, effectively improving the processing precision and quality of the manhole cover 20 and ensuring smooth production.
[0036] An assembly frame 411 is mounted on the outer wall of the manhole ring 10, and a locking block 42 is mounted on the assembly frame 411. One end of the locking block 42 has an inserting block 422, which is positioned between the manhole ring 10 and the manhole cover 20. In this embodiment, the locking block 42, mounted on the assembly frame 411, provides stable support for subsequent components. The inserting block 422 at one end of the locking block 42, positioned between the manhole ring 10 and the manhole cover 20, effectively secures the manhole cover 20, ensuring processing accuracy and quality; it also enhances the stability of the connection between the manhole cover 20 and the manhole ring 10.
[0037] A fixing device for manhole cover processing includes a manhole ring 10, a manhole cover 20, a clamping assembly 30, and a snap-fit assembly 40. The manhole cover 20 is disposed on the manhole ring 10. The clamping assembly 30 and the snap-fit assembly 40 are respectively disposed at both ends of the manhole ring 10. The clamping assembly 30 and the snap-fit assembly 40 are used to clamp and fix the manhole cover 20 to the manhole ring 10. The clamping assembly 30 includes a first clamping element 31 and a second clamping element 32. The first clamping element 31 is disposed on the manhole cover 20, and the second clamping elements 32 are disposed on both sides of the manhole ring 10 close to the first clamping element 31. Multiple sets of the second clamping elements 32 are provided, and the snap-fit assembly 40 is disposed between two adjacent sets of the second clamping elements 32 for clamping and fixing the manhole cover 20 and the manhole ring 10 and / or snap-fit fixing. In this embodiment, by setting a clamping component 30 and a snap-fit component 40 at both ends of the manhole ring 10, the manhole cover 20 can be reliably clamped and fixed to the manhole ring 10, ensuring a stable connection between the manhole cover 20 and the manhole ring 10. The first clamping element 31 of the clamping component 30 is set on the manhole cover 20, and the second clamping element 32 is set on both sides of the manhole ring 10 in multiple sets, which can cooperate to clamp the manhole cover 20 and the manhole ring 10 from two different positions, enhancing the clamping force on the manhole cover 20 and making the manhole cover 20 less prone to shaking or displacement. The snap-fit component 40 is set between two adjacent sets of second clamping elements 32, which can work together with the clamping component 30 to further clamp and fix the manhole cover 20 and the manhole ring 10, and can also snap and fix the manhole cover 20 and the manhole ring 10, providing a variety of fixing methods to adapt to different usage scenarios and needs. It has strong applicability and stability, ensuring that the manhole cover 20 and the manhole ring 10 maintain a tight and stable connection during the processing of the manhole cover 20, and has strong practicality.
[0038] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A fixing device for processing manhole covers, characterized in that: The device includes a manhole ring, a manhole cover, a clamping assembly, and a snap-fit assembly. The manhole cover is mounted on the manhole ring, and the clamping assembly and snap-fit assembly are respectively located at both ends of the manhole ring. The clamping assembly and snap-fit assembly are used to clamp and fix the manhole cover to the manhole ring. The clamping assembly includes a first clamping element and a second clamping element. The first clamping element is mounted on the manhole cover, and the second clamping elements are located on both sides of the manhole ring near the first clamping element. Multiple sets of the second clamping elements are provided, and the snap-fit assembly is located between two adjacent sets of the second clamping elements for clamping and / or snap-fit fixing of the manhole cover and the manhole ring.
2. The fixing device for manhole cover processing according to claim 1, characterized in that: An installation ring is provided on the outer edge of the well ring, and the clamping assembly and the snap-fit assembly are provided on the installation ring.
3. The fixing device for manhole cover processing according to claim 2, characterized in that: The manhole cover is arc-shaped, and its height is the same as that of the clamping assembly and the buckle assembly.
4. The fixing device for manhole cover processing according to claim 3, characterized in that: The upper surface of the manhole cover is provided with an adsorption ring, the first pressing element is disposed on the adsorption ring, and the second pressing element performs pressing action along with the first pressing element.
5. The fixing device for manhole cover processing according to claim 1, characterized in that: The first pressing element includes a first pressing head, a first pressing rod, and a first pressing valve. The first pressing head is disposed on the first pressing rod, and the first pressing valve is sleeved on the first pressing rod. The outer surface of the first pressing rod is provided with a drive thread, and the first pressing valve performs a pressing action along the drive thread.
6. The fixing device for manhole cover processing according to claim 5, characterized in that: The second clamping element includes a second pressure rod and a second pressure head. The second pressure head is disposed on the second pressure rod and moves along the second pressure rod to clamp and fix the well cover toward the well ring.
7. The fixing device for manhole cover processing according to claim 6, characterized in that: The second clamping element also includes an auxiliary mounting block and an auxiliary locking block; the auxiliary mounting block is located on the outside of the well ring, one end of the auxiliary locking block is located on the auxiliary mounting block, and the other end is located on the well cover; the auxiliary locking block is an L-shaped block.
8. The fixing device for manhole cover processing according to claim 7, characterized in that: One end of the second pressure rod passes through the auxiliary locking block, which is mounted on the auxiliary mounting block, and the second pressure head slides along the second pressure rod.
9. The fixing device for manhole cover processing according to claim 1, characterized in that: The snap-fit assembly includes an assembly element and a snap-fit block, the snap-fit block being movably disposed on the assembly element; the assembly element includes an assembly frame and an assembly shaft, the snap-fit block being disposed near the assembly frame with an assembly shaft, the assembly shaft cooperating with the assembly shaft.
10. The fixing device for manhole cover processing according to claim 9, characterized in that: The assembly frame is disposed on the outer wall of the well ring, the locking block is disposed on the assembly frame, one end of the locking block is provided with an embedding block, and one end of the embedding block is disposed between the well ring and the well cover.