Intelligent shock absorption and noise reduction well lid

By installing protective frames and limit feet on the manhole cover, the problem of loosening and displacement of the manhole cover due to vehicle crushing is solved, and the effect of reducing noise and improving stability is achieved.

CN119877602APending Publication Date: 2025-04-25CHONGQING ZHONGSHE ENG DESIGN
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Patent Information

Application Number
CN202510032770.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-04-25

AI Technical Summary

Technical Problem

After being crushed by the car for a long time, the manhole cover is prone to loosening and displacement, causing a lot of noise when the vehicle passes by and affects nearby residents and vehicles' driving.

Method used

A smart shock-absorbing and noise-reducing manhole cover is designed. By installing a protective frame on the manhole cover, the limit foot at the bottom of the protective frame is set to connect to the ground to enhance the resistance to displacement and to fix the connection with the ground by bolts.

Benefits of technology

Effectively prevent the manhole cover from loosening or displaced due to the vehicle rolling, reduce noise when the vehicle passes, and improve the stability and anti-shaking ability of the manhole cover.

✦ Generated by Eureka AI based on patent content.

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    Figure CN119877602A_ABST
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Abstract

An intelligent shock absorption and noise reduction well lid comprises a well lid body, the well lid body is installed above an inspection well, a protection frame installation groove is formed in the well lid body, a protection frame is installed in the protection frame installation groove, and the upper surface of the protection frame is higher than the upper surface of the well lid body and flush with the ground; at least three limiting feet are evenly arranged at the bottom of the protection frame, the protection frame extends into limiting foundation pits through the limiting feet to be connected with the ground, the limiting foundation pits correspond to the limiting feet in a one-to-one mode, and the limiting foundation pits are evenly distributed on the periphery of the inspection well. The protection frame is further fixedly connected with the ground through bolts. The protection frame replaces the well lid body to be rolled by a vehicle, and the well lid body is prevented from loosening or shifting due to rolling by the vehicle. Meanwhile, the protective frame extends into the deep underground through the limiting feet, so that the anti-displacement capability of the protective frame is enhanced, and the protective frame is prevented from being displaced due to rolling of a vehicle. The connecting strength between the protective frame and the ground is enhanced through the bolts, and the protective frame is prevented from loosening due to rolling of a vehicle.
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Description

Technical Field

[0001] The present invention relates to the technical field of manhole covers, and in particular to an intelligent shock-absorbing and noise-reducing manhole cover. Background Art

[0002] In urban construction, the planning of municipal underground water pipe network facilities and urban roads will inevitably overlap. To facilitate the inspection and maintenance of underground water pipes, underground water pipes will be equipped with a manhole leading to the ground at intervals. To ensure the beauty and safety of the ground, manhole covers will be installed at the manhole openings to seal them. Therefore, manhole covers often appear on motor vehicle lanes and non-motor vehicle lanes.

[0003] Manhole covers are usually made of reinforced cement, metal, reinforced plastic and other materials, and are mainly round and square in shape. After being crushed by cars for a long time, many manhole covers on motor vehicle lanes and non-motor vehicle lanes will become loose between the manhole covers and the manhole openings, causing a lot of noise when vehicles pass by, and in severe cases, the manhole covers will deform and shift, which has a serious impact on the lives of nearby residents and the driving of vehicles. Summary of the invention

[0004] The purpose of the present invention is to provide an intelligent shock-absorbing and noise-reducing manhole cover, which can prevent the manhole cover from loosening and shifting, and reduce the noise generated by vehicles passing through the manhole cover.

[0005] The key of the intelligent vibration-absorbing and noise-reducing manhole cover is that it includes a manhole cover body, which is installed above the manhole, and a protective frame installation groove is opened on the manhole cover body, and a protective frame is installed in the protective frame installation groove, and the upper surface of the protective frame is higher than the upper surface of the manhole cover body and is flush with the ground;

[0006] At least three limiting feet are evenly arranged at the bottom of the protection frame, and the limiting feet extend into the limiting foundation pit and are connected to the ground. The limiting foundation pits correspond to the limiting feet one by one, and all the limiting foundation pits are evenly distributed on the periphery of the manhole;

[0007] The protection frame is also fixedly connected to the ground via bolts.

[0008] The protective frame replaces the manhole cover body to receive the vehicle rolling over, preventing the manhole cover body from loosening or shifting due to vehicle rolling over.

[0009] At the same time, the protective frame extends deep into the ground through the limiting feet, which enhances the anti-displacement ability of the protective frame and prevents the protective frame from shifting due to vehicle running over. Moreover, the protective frame also strengthens the connection strength with the ground through bolts to prevent the protective frame from loosening due to vehicle running over, thereby reducing the noise generated by vehicles passing over the protective frame.

[0010] Furthermore, the protection frame installation groove is in a stepped shape, and the upper step of the protection frame installation groove is a protection frame support platform, and the protection frame is embedded in the protection frame installation groove and is close to the protection frame support platform;

[0011] The cross section of the upper step of the protective frame installation slot is an inverted trapezoidal structure.

[0012] Furthermore, the protective frame is composed of a horizontal support frame and a limiting foot, wherein the horizontal support frame is a grid-shaped support plate structure, wherein the cross section of the support plate is an inverted trapezoidal structure;

[0013] The horizontal support frame extends outwards on all sides and bends downwards to form the limiting feet.

[0014] The limiting feet are arranged in a rectangular shape or in a "well" shape or a nine-square grid arrangement, and the cross section of the support plate is consistent with the cross section of the step on the protective frame installation groove.

[0015] Each end of the support plate is provided with a bolt through hole, through which the bolt extends into the ground, and the upper surface of the bolt is lower than or equal to the upper surface of the horizontal support frame.

[0016] Further, each of the limiting foundation pits is in a stepped shape, and a group of limiting blocks are fixed on the upper step of the limiting foundation pit and the lower step of the limiting foundation pit, the upper step of the limiting foundation pit is located in the middle of the limiting foundation pit, and the lower step of the limiting foundation pit is close to the bottom of the limiting foundation pit;

[0017] A set of limiting devices is provided at the middle and lower ends of each limiting foot;

[0018] All the limiting devices are connected with all the limiting blocks in a one-to-one correspondence.

[0019] Furthermore, the limiting device is composed of two horizontally arranged upper and lower springs, and the limiting block is clamped between the two springs;

[0020] The limit foot is provided with a reed installation groove, the inner cavity length of the reed installation groove being greater than the opening length of the reed installation groove;

[0021] The two ends of the reed extend into the inner cavity of the reed installation slot, and the middle part of the reed extends out of the opening of the reed installation slot.

[0022] When a vehicle runs over the protective frame, the protective frame will shake up and down. The up and down shaking of the protective frame will cause the bolts to loosen, causing the protective frame to loosen.

[0023] The relative force between the limit block and the two spring leaves increases the anti-shaking ability of the protective frame, thereby avoiding the loosening of the bolts and strengthening the fixing ability of the bolts.

[0024] Furthermore, the limiting foundation pit is connected to the manhole through a slag discharge pipe, and the upper pipe opening of the slag discharge pipe is located below the limiting block, and the lower pipe opening is located on the side wall of the manhole.

[0025] The limiting foundation pit discharges rainwater, mud and other debris to the manhole through the slag discharge pipe, preventing the limiting feet and limiting blocks from being soaked and corroded by rainwater, mud and other debris for a long time.

[0026] Furthermore, a spring groove is arranged around the opening of the manhole;

[0027] The four sides of the manhole cover body are covered on the spring groove, and a support spring is installed in the spring groove, and the support spring supports the manhole cover body.

[0028] The supporting force of the supporting spring forces the manhole cover body to maintain contact with the bolt, thereby enhancing the connection strength of the bolt.

[0029] Furthermore, the spring groove is an annular groove, and the support spring is arranged in the annular groove.

[0030] Furthermore, the manhole cover body is provided with a first water inlet hole combination and a second water inlet hole combination, the first water inlet hole combination is located outside the protective frame installation groove, and the second water inlet hole combination is located inside the protective frame installation groove;

[0031] The manhole cover body is provided with a weight-added basket, which is connected to the lower bottom of the manhole cover body through a connecting plate, and the opening of the weight-added basket is away from the manhole cover body;

[0032] A third water hole combination is provided at the bottom of the weight-increasing basket.

[0033] When the rainfall is normal, the amount of water in the weighted basket is small, the gravity of the weighted basket and the manhole cover body is less than or equal to the supporting force of the supporting spring, the manhole cover body remains stationary, the upper step of the protective frame mounting groove fits tightly with the supporting plate, and rainwater is discharged into the manhole through the first water inlet hole.

[0034] When the rainfall is too heavy, the amount of water in the weight-increasing basket increases, the weight of the weight-increasing basket and the manhole cover body is greater than the supporting force of the supporting spring, the manhole cover body sinks, and the upper step of the protective frame mounting groove is separated from the supporting plate. The rainwater flows into the protective frame mounting groove through the gap between the upper step of the protective frame mounting groove and the supporting plate, and then the rainwater is discharged into the manhole through the first water inlet hole and the second water inlet hole, which speeds up the discharge of rainwater into the manhole and can effectively prevent rainwater accumulation on the road.

[0035] The cross-sections of the upper step of the protective frame mounting groove and the support plate are both inverted trapezoidal structures. When the manhole cover body sinks, the gap between the upper step of the protective frame mounting groove and the support plate can be increased, thereby accelerating the flow of rainwater into the protective frame mounting groove and increasing the speed at which rainwater is discharged into the manhole.

[0036] Furthermore, the mass of the protective frame is greater than the mass of the manhole cover body.

[0037] The material density of the protection frame is greater than the material density of the manhole cover body.

[0038] The upper surface area of ​​the protective frame is greater than 1 / 3 of the upper surface area of ​​the manhole cover body.

[0039] The deadweight of the guard frame and the limit foot can reduce the impact of vehicle rolling on the guard frame, thereby offsetting the rolling force that causes the guard frame to swing up and down, preventing the bolts from loosening, and reducing the noise generated by the vehicle passing through the manhole cover body.

[0040] Beneficial effects: 1. The protective frame replaces the manhole cover body to accept vehicle rolling, preventing the manhole cover body from loosening or shifting due to vehicle rolling. At the same time, the protective frame extends deep into the ground through the limit feet, enhancing the anti-shifting ability of the protective frame, avoiding the displacement of the protective frame due to vehicle rolling, and the protective frame also strengthens the connection strength with the ground through bolts, avoiding the loosening of the protective frame due to vehicle rolling, thereby reducing the noise generated by vehicles passing over the protective frame.

[0041] 2. When a vehicle runs over the protective frame, the protective frame will shake up and down, causing the bolts to loosen, thereby causing the protective frame to loosen. The relative force between the limit block and the two spring leaves increases the anti-shaking ability of the protective frame, thereby avoiding the loosening of the bolts and strengthening the bolt fixing ability.

[0042] At the same time, the supporting force of the supporting spring forces the manhole cover body to maintain contact with the bolt, thereby enhancing the connection strength of the bolt.

[0043] 3. The cross-sections of the upper step of the protective frame installation groove and the support plate are both inverted trapezoidal structures. When the rainfall is too heavy, the amount of water inflow into the weight-added basket increases, and the gravity of the weight-added basket and the manhole cover body is greater than the supporting force of the supporting spring. The manhole cover body sinks, causing the gap between the upper step of the protective frame installation groove and the support plate to increase, thereby accelerating the flow of rainwater into the protective frame installation groove and increasing the speed at which rainwater is discharged into the manhole. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 Top view of the intelligent shock-absorbing and noise-reducing manhole cover assembly;

[0045] Figure 2 for Figure 1 Sectional view at AA;

[0046] Figure 3 This is a top view of the manhole cover;

[0047] Figure 4 for Figure 3 Sectional view at the middle BB;

[0048] Figure 5 This is a top view of the upper manhole cover;

[0049] Figure 6 for Figure 5 Sectional view at CC

[0050] Figure 7 This is a schematic diagram of the reed installation. DETAILED DESCRIPTION

[0051] The specific implementation manner and working principle of the present invention are further described in detail below with reference to the accompanying drawings.

[0052] like Figure 1 , Figure 2 As shown, the intelligent vibration-absorbing and noise-reducing manhole cover comprises a manhole cover body 1, which is installed above a manhole 3. A spring installation groove 31 is provided around the opening of the manhole 3. The spring groove 31 is an annular groove, and a support spring 32 is installed in the inner spring installation groove 31.

[0053] The four sides of the manhole cover body 1 are covered on the spring groove 31 , and the support spring 32 supports the manhole cover body 1 .

[0054] like Figure 3 , Figure 4 As shown, a protective frame installation groove 11 is opened on the manhole cover body 1, and the protective frame installation groove 11 is in a stepped shape. The upper step of the protective frame installation groove 11 is a protective frame support platform 111, and the cross section of the upper step of the protective frame installation groove 11 is an inverted trapezoidal structure;

[0055] The manhole cover body 1 is provided with a first water inlet hole 12 combination and a second water inlet hole 112 combination, wherein the first water inlet hole 12 combination is located outside the protection frame installation groove 11, and the second water inlet hole 112 combination is located inside the protection frame installation groove 11;

[0056] The manhole cover body 1 is provided with a weight-added basket 13, which is connected to the lower bottom of the manhole cover body 1 through a connecting plate 14, and the opening of the weight-added basket 13 is away from the manhole cover body 1;

[0057] A third water hole 131 is formed at the bottom of the weight-increasing basket 13 .

[0058] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, a protective frame 2 is installed above the manhole cover body 1, and the protective frame 2 is composed of a horizontal support frame 21 and four limit legs 22, wherein the horizontal support frame 21 is a grid-like support plate structure, the cross section of the support plate is an inverted trapezoidal structure, and two bolt through holes 211 are opened at both ends of each support plate;

[0059] The four limiting feet 22 are evenly arranged with each supporting plate spaced apart, and each limiting foot 22 is formed by extending outward from any end of the supporting plate and bending downward;

[0060] like Figure 1 , Figure 2 As shown, the horizontal support frame 21 is embedded in the protection frame installation groove 11 and is close to the protection frame support platform 111, and the cross section of the support plate is consistent with the cross section of the step on the protection frame installation groove 11.

[0061] like Figure 2 As shown, the upper surface of the horizontal support frame 21 is higher than the upper surface of the manhole cover body 1 and is flush with the ground.

[0062] like Figure 2 As shown, four limiting pits 4 are evenly distributed on the periphery of the manhole 3, and the four limiting feet 22 extend into the four limiting pits 4 one by one, and the horizontal support frame 21 is fixedly connected to the ground through bolts, and the bolts pass through the bolt holes 211 and extend into the ground, and the upper surface of the bolts is lower than or equal to the upper surface of the horizontal support frame 21.

[0063] like Figure 2 As shown, each of the limiting foundation pits 4 is in a stepped shape, and a group of limiting blocks 41 are fixed on the upper step of the limiting foundation pit 4 and the lower step of the limiting foundation pit 4. The upper step of the limiting foundation pit 4 is located in the middle of the limiting foundation pit 4, and the lower step of the limiting foundation pit 4 is close to the bottom of the limiting foundation pit 4.

[0064] A set of limiting devices is disposed at the middle and lower ends of each limiting leg 22 , and all the limiting devices are connected to all the limiting blocks 41 in a one-to-one correspondence.

[0065] like Figure 2 As shown, the limiting device is composed of two horizontally arranged upper and lower springs 221, and the limiting block 41 is clamped between the two springs 221;

[0066] like Figure 7 As shown, a reed mounting groove 222 is formed on the limiting foot 22, and the inner cavity length of the reed mounting groove 222 is greater than the opening length of the reed mounting groove 222; both ends of the reed 221 extend into the inner cavity of the reed mounting groove 222, and the middle part of the reed 221 extends out of the opening of the reed mounting groove 222.

[0067] like Figure 2 As shown, each of the limiting foundation pits 4 is connected to the manhole 3 through two slag discharge pipes 42, and the slag discharge pipes 42 correspond to the limiting blocks 41 one by one and are close to the limiting blocks 41;

[0068] The upper pipe opening of each slag discharge pipe 42 is located below the limiting block 41 , and the lower pipe opening is located on the side wall of the manhole 3 .

[0069] The mass and material density of the protective frame 2 are respectively greater than the mass and material density of the manhole cover body 1 .

[0070] The upper surface area of ​​the protection frame 2 is larger than 1 / 3 of the upper surface area of ​​the manhole cover body 1 .

Claims

1. An intelligent vibration-absorbing and noise-reducing manhole cover, comprising a manhole cover body (1), the manhole cover body (1) being installed above a manhole (3), characterized in that: The manhole cover body (1) is provided with a protection frame installation groove (11), a protection frame (2) is installed in the protection frame installation groove (11), and the upper surface of the protection frame (2) is higher than the upper surface of the manhole cover body (1) and is flush with the ground; At least three limiting feet (22) are evenly arranged at the bottom of the protection frame (2), and the limiting feet (22) extend into the limiting foundation pit (4) to connect with the ground, the limiting foundation pit (4) corresponds to the limiting feet (22) one by one, and all the limiting foundation pits (4) are evenly distributed on the periphery of the manhole (3); The protection frame (2) is also fixedly connected to the ground via bolts.

2. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 1 is characterized in that: The protection frame installation groove (11) is in a stepped shape, and the upper step of the protection frame installation groove (11) is a protection frame support platform (111), and the protection frame (2) is embedded in the protection frame installation groove (11) and is close to the protection frame support platform (111); The cross section of the upper step of the protection frame installation groove (11) is in an inverted trapezoidal structure.

3. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 2 is characterized in that: The protective frame (2) is composed of a horizontal support frame (21) and a limiting foot (22), wherein the horizontal support frame (21) is a grid-shaped support plate structure, wherein the cross section of the support plate is an inverted trapezoidal structure; The horizontal support frame (21) extends outwards on all sides and bends downwards to form the limiting feet (22).

4. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 3 is characterized in that: Each of the limiting foundation pits (4) is in a stepped shape, and a group of limiting blocks (41) are fixed on the upper step of the limiting foundation pit (4) and the lower step of the limiting foundation pit (4), the upper step of the limiting foundation pit (4) is located in the middle of the limiting foundation pit (4), and the lower step of the limiting foundation pit (4) is close to the bottom of the limiting foundation pit (4); A set of limiting devices is provided at the middle and lower ends of each limiting foot (22); All the limiting devices are connected to all the limiting blocks (41) in a one-to-one correspondence.

5. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 4 is characterized in that: The limiting device is composed of two upper and lower horizontally arranged spring plates (221), and the limiting block (41) is clamped between the two spring plates (221); The limiting foot (22) is provided with a reed installation groove (222), and the inner cavity length of the reed installation groove (222) is greater than the opening length of the reed installation groove (222); Both ends of the reed (221) extend into the inner cavity of the reed installation slot (222), and the middle portion of the reed (221) extends out of the opening of the reed installation slot (222).

6. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 4 is characterized in that: The limiting foundation pit (4) is connected to the manhole (3) through a slag discharge pipe (42), and the upper pipe opening of the slag discharge pipe (42) is located below the limiting block (41), and the lower pipe opening is located on the side wall of the manhole (3).

7. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 2 is characterized in that: A spring groove (31) is arranged around the opening of the manhole (3); The four sides of the manhole cover body (1) are covered on the spring groove (31), and a support spring (32) is installed in the spring groove (31), and the support spring (32) supports the manhole cover body (1).

8. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 7 is characterized in that: The spring groove (31) is an annular groove, and the support spring (32) is arranged in the annular groove.

9. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 6 is characterized in that: The manhole cover body (1) is provided with a first water inlet hole (12) combination and a second water inlet hole (112) combination, wherein the first water inlet hole (12) combination is located outside the protection frame installation groove (11), and the second water inlet hole (112) combination is located inside the protection frame installation groove (11); The manhole cover body (1) is provided with a weight-added basket (13), the weight-added basket (13) is connected to the lower bottom of the manhole cover body (1) via a connecting plate (14), and the opening of the weight-added basket (13) is away from the manhole cover body (1); A third water hole (131) is provided at the bottom of the weight-increasing basket (13).

10. The intelligent vibration-absorbing and noise-reducing manhole cover according to claim 1 is characterized in that: The mass of the protective frame (2) is greater than the mass of the manhole cover body (1).