Well lid height and inclination adjusting structure and well lid

Abstract

The utility model is suitable for the field of well lid adjustment, and particularly relates to a well lid height and inclination adjusting structure and a well lid. The well lid height and inclination adjusting structure comprises an installation base installed in a roadbed and the well lid fixed to the upper end of the installation base through an adjusting structure, and the adjusting structure comprises a replaceable adjusting gasket arranged in a gasket groove; the silencing gasket is arranged on the lower edge of the well lid and abuts against the adjusting gasket; the sealing gasket sleeves the outer edge of the well lid and is extruded with the upper edge of the mounting seat; wherein at least two types of adjusting washers are arranged, namely height adjusting washers and inclination adjusting washers, and the heights of all positions of the height adjusting washers are equal; the inclination adjusting gasket comprises a lowest end and a highest end, and the lowest end and the highest end generate a height difference. The height and inclination of the well lid can be adjusted through the adjusting gasket, the silencing gasket connected with the adjusting gasket in an extrusion mode is arranged, the silencing gasket can play a buffering role, when the well lid is rolled, noise of the well lid can be avoided through buffering of the silencing gasket, and noise pollution of a road can be reduced.

Description

Technical Field

[0001] The utility model belongs to the field of manhole cover adjustment, and specifically relates to a manhole cover height and slope adjustment structure and a manhole cover. Background Art

[0002] A manhole cover is a device used to cover the wellhead or other underground facilities. Its main function is to prevent people or vehicles from accidentally falling into the well. It is usually used in roads, sidewalks, underground facilities and urban infrastructure.

[0003] Manhole covers are usually fixed in form. The base of the manhole cover is fixedly installed in the roadbed through cement concrete. The manhole cover is then installed on the fixed base through hinges. The gap between the manhole cover and the roadbed is filled with asphalt or cement to complete the installation of the manhole cover. However, when the foundation of the manhole cover settles or the road surface rises, a certain height difference will be produced between the manhole cover and the road surface, affecting the flatness and aesthetics of the road surface, and seriously affecting the user experience of the road. In serious cases, it may also cause accidents or traffic accidents.

[0004] The prior art provides a plurality of bolts between the manhole cover and the base of the manhole cover, and controls the height and slope changes of the manhole cover in different directions by raising and lowering the bolts, thereby achieving the effect of adjusting the height and slope of the manhole cover. However, in actual use, when the weight of the traffic vehicles or pedestrians above the manhole cover is too heavy, it is easy to cause the bolts to bend, and even damage the threads, causing the bolt structure to lose the function of adjusting the height and slope of the manhole cover. When the bolts are bent too severely, the manhole cover cannot be opened normally. The interior of the manhole cover is in a humid and dark environment for a long time, and metal products are prone to rust, which increases the subsequent maintenance costs. In addition, the bolt structure is large in size and will occupy a certain amount of space in the well, affecting the normal entry and exit of the well.

[0005] In summary, a new manhole cover height and slope adjustment structure is urgently needed to solve the problems of unstable structure, poor durability, difficult maintenance and high cost of the existing manhole cover adjustment device. Utility Model Content

[0006] The embodiment of the utility model provides a manhole cover height and slope adjustment structure and a manhole cover, aiming to solve the problems of unstable structure, poor durability, difficult maintenance and high cost of existing manhole cover adjustment devices.

[0007] The utility model is achieved in this way:

[0008] A manhole cover height and slope adjustment structure, a mounting seat fixedly mounted in a roadbed, a manhole cover fixed to the upper end of the mounting seat through the adjustment structure, the adjustment structure comprising:

[0009] a replaceable adjusting washer disposed in the washer groove; and

[0010] A sound-absorbing gasket disposed at the lower edge of the manhole cover and pressed against the adjusting gasket; and

[0011] A sealing gasket is embedded in the outer edge of the manhole cover and pressed against the upper edge of the mounting seat; wherein there are at least two types of adjusting gaskets.

[0012] Furthermore, the adjusting washers are height-adjusting washers and tilt-adjusting washers.

[0013] Furthermore, the heights of the height-adjusting washers at various positions are equal; the tilt-adjusting washers include a lowest end and a highest end, and there is a height difference between the lowest end and the highest end.

[0014] Furthermore, the noise-absorbing gasket is provided with a baffle structure.

[0015] Furthermore, there are at least two types of sealing gaskets.

[0016] Furthermore, a gasket groove may be provided in the mounting seat.

[0017] Furthermore, at least one functional hole or functional groove is provided in the gasket groove.

[0018] Furthermore, a reinforcing rib plate used in conjunction with the functional groove is provided on the back of the manhole cover.

[0019] A square manhole cover comprises a square manhole cover and a manhole cover base, wherein the manhole cover height and slope adjustment structure as described above is arranged between the square manhole cover and the manhole cover base.

[0020] A circular manhole cover, comprising a hook hole penetrating the manhole cover, a marking structure and an anti-slip structure arranged on the surface of the manhole cover,

[0021] An integrally formed adjustment sleeve is provided at the lower end of the manhole cover;

[0022] The lower end of the adjusting sleeve is pressed and connected with the silencer washer.

[0023] Furthermore, the identification structure is an identification plate, and the anti-slip structure is an anti-slip pattern.

[0024] A sewage manhole cover, comprising the manhole cover height and slope adjustment structure as described above.

[0025] A rainwater manhole cover comprises the manhole cover height and slope adjustment structure as described above.

[0026] A fireproof manhole cover, comprising the manhole cover height and slope adjustment structure as described above.

[0027] A power manhole cover, comprising the manhole cover height and slope adjustment structure as described above.

[0028] A communication manhole cover, comprising the manhole cover height and slope adjustment structure as described above.

[0029] A water supply manhole cover, comprising the manhole cover height and slope adjustment structure as described above.

[0030] A gas manhole cover comprises the manhole cover height and slope adjustment structure as described above.

[0031] A greening manhole cover, comprising the manhole cover height and slope adjustment structure as described above.

[0032] The beneficial effects achieved by the utility model are:

[0033] The utility model provides a reinforcing rib plate at the lower end of the manhole cover, and provides a functional groove on the gasket groove at the corresponding position, thereby ensuring that the manhole cover can still be installed on the mounting seat in the original position; by providing a through functional groove, water stains entering the gap between the gasket groove and the mounting seat can be removed in time, avoiding rust on the mounting seat due to the water stains.

[0034] At the same time, an adjusting washer and a silencer washer extruded and connected thereto are provided. The silencer washer can play a buffering role. When the manhole cover is rolled, the silencer washer can buffer the manhole cover to avoid noise, thereby reducing noise pollution on the road. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the assembly of the manhole cover of the utility model when adjusting the height;

[0036] Figure 2 This is a schematic diagram of the assembly of the manhole cover of the utility model when the inclination is adjusted;

[0037] Figure 3 It is a structural schematic diagram of a height adjustment structure and a manhole cover adjustment device provided by the utility model;

[0038] Figure 4 It is a schematic diagram of the exploded structure of the height adjustment structure and the manhole cover adjustment device provided by the utility model;

[0039] Figure 5 It is a schematic diagram of the structure of the utility model when the height is adjusted;

[0040] Figure 6 It is a partial enlarged schematic diagram of the utility model A;

[0041] Figure 7 It is a schematic diagram of the structure of the utility model when the slope is adjusted;

[0042] Figure 8 It is a partial enlarged schematic diagram of the utility model B;

[0043] Fig. 9 It is a schematic diagram of the structure of the reinforcing rib plate of the utility model;

[0044] Fig.10 It is a schematic diagram of the structure of a circular manhole cover of the utility model;

[0045] Fig.11 It is a schematic diagram of the structure of a square manhole cover of the utility model;

[0046] Fig.12 It is a schematic diagram of the structure of the height-adjusting washer of the utility model;

[0047] Fig.13 It is a schematic diagram of the structure of the tilting washer of the utility model;

[0048] Fig.14 It is a schematic diagram of the structure of the iso-height gasket of the utility model;

[0049] Fig.15 It is a schematic diagram of the structure of the inclined washer of the utility model.

[0050] Figure Number:

[0051] 100. Manhole cover height and slope adjustment structure;

[0052] 110, manhole cover; 120, reinforcing ribs; 130, lifting hook hole; 140, anti-slip structure; 150, identification structure; 160, adjustment sleeve;

[0053] 200, sealing gasket; 210, equal height gasket; 220, inclined gasket;

[0054] 300, sound-absorbing gasket;

[0055] 400, adjusting washer; 410, height-adjusting washer; 420, tilt-adjusting washer;

[0056] 500, gasket groove; 510, functional groove; 520, functional hole;

[0057] 600, mounting seat;

[0058] 700. Square drainage manhole cover; 710. Square manhole cover; 720. Manhole cover base. DETAILED DESCRIPTION

[0059] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0060] In the utility model, a reinforcing rib is provided at the lower end of the manhole cover, and a functional groove is provided on the gasket groove at the corresponding position, so that the manhole cover can be installed on the mounting seat at the original position. When a road sign is painted on the manhole cover, the integrity of the road sign can be guaranteed; by providing a through functional groove, water stains entering the gasket groove can be removed in time to avoid rust on the mounting seat due to the water stains; at the same time, an adjusting gasket and a sound-absorbing gasket squeezed and connected thereto are provided, and the sound-absorbing gasket can play a buffering role. When the manhole cover is rolled, the noise of the manhole cover can be avoided through the buffering of the protective gasket, so that noise pollution on the road can be reduced.

[0061] Embodiment 1

[0062] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 In the embodiment of the utility model, a height adjustment structure is provided, a mounting seat 600 fixedly mounted in the roadbed, a manhole cover 110 fixed to the upper end of the mounting seat 600 by the adjustment structure, and the adjustment structure includes:

[0063] A replaceable adjusting washer 400 disposed in the washer groove; and

[0064] The sound-absorbing gasket 300 is disposed at the lower edge of the manhole cover 110 and is pressed against the adjusting gasket 400.

[0065] The sealing gasket 200 is embedded in the outer edge of the manhole cover 110 and pressed against the upper edge of the mounting seat 600; wherein, there are at least two types of adjusting gaskets 400.

[0066] In this embodiment, the manhole cover 110 is a device used to cover the wellhead or other underground facilities to prevent people or vehicles from accidentally falling into the well. As the foundation settles or the road surface is renovated, the manhole cover 110 usually has a certain height difference or slope with the road surface. When a vehicle travels over the manhole cover 110, it will produce bumps, vibrations, noise, etc., causing certain damage to the roadbed and the vehicle. The existing height and slope adjustment devices of the manhole cover 110 are unreasonably designed, difficult to adjust or the adjustment range is too small, which cannot meet actual needs, and are easily damaged or maliciously destroyed, thereby affecting the service life and safety of the manhole cover 110.

[0067] Therefore, this embodiment provides a manhole cover height and slope adjustment device 100, which is easy to design and manufacture on the one hand, and has high stability, adjustability and safety on the other hand. When a heavy object hits the manhole cover 110, it can also buffer the impact between the manhole cover 110 and the roadbed, eliminate noise, and extend the service life of the manhole cover 110 and the foundation.

[0068] Specifically, in one embodiment, it includes a manhole cover 110 and a mounting seat 600, the mounting seat 600 is fixed in the roadbed, the lower end of the manhole cover 110 may be provided with an adjustment sleeve 160 for being embedded in the mounting seat 600, the manhole cover 110 is fixedly connected to the mounting seat 600 through an anti-loss structure, it is easy to understand that the anti-loss structure includes a slip ring, a manhole cover fixing rod and a mounting seat fixing rod, the cross-sectional shape of the slip ring may be elliptical, the manhole cover fixing rod may be fixed to one side of the manhole cover 110 by an integral molding manner, the mounting seat fixing rod is arranged on one side of the mounting seat by an integral molding manner, and the manhole cover 110 and the mounting seat 600 are fixedly linked together by the slip ring.

[0069] See also Figure 1 and Figure 2 A manhole cover height and slope adjustment structure 100 is also fixed between the manhole cover 110 and the mounting seat 600. The manhole cover height and slope adjustment structure 100 is used to adjust the height and slope of the manhole cover 110 relative to the fixing seat, so as to make the manhole cover 110 flush with the road surface.

[0070] See also Figure 3 and Figure 4 In another embodiment, the manhole cover height and slope adjustment structure 100 includes a gasket groove 500 arranged in the mounting seat 600. The gasket groove 500 can be arranged in the mounting seat 600 in an integrated manner. The gasket groove 500 is used to guide the manhole cover 110 when it is fixed to the mounting seat 600. The width of the gasket groove 500 can be 10 mm, 20 mm, or 30 mm. The specific value can be adjusted according to actual needs. The shape of the gasket groove 500 can be circular, square or rectangular. The adjusting gasket 400 is fixed in the mounting seat 600 through the gasket groove 500.

[0071] See also Figure 6 and Figure 8 In another embodiment, a replaceable adjusting gasket 400 is provided in the gasket groove 500. The adjusting gasket 400 may be in the shape of a ring, square or rectangle with equal heights at all positions, and the specific height may be 5 mm, 10 mm, 20 mm, 50 mm, etc.; it may also be in the shape of a ring, square or rectangle with one side higher than the other, for example, the height of one side of the adjusting gasket 400 is 5 mm and the height of the other side is 10 mm, or the height of one side is 10 mm and the height of the other side is 20 mm. The above is a specific example of this embodiment, and the specific height can be set according to the actual height generated by the manhole cover 110 and the road surface.

[0072] The material of the adjusting washer 400 can be metal, such as cast iron, stainless steel or alloy. The material of the adjusting washer 400 can also be non-metallic material, such as fiber, plastic or PVC. The above are specific examples of the material of the adjusting washer 400. It should be noted that this embodiment includes but is not limited to the above examples, and any material with high strength, high hardness and good wear resistance can be used.

[0073] In another embodiment, a silencer washer 300 used in conjunction with the adjusting washer 400 may be further provided at the lower edge of the adjusting sleeve 160. The silencer washer 300 may be fixedly connected to the adjusting sleeve 160 by inlaying. The lower edge of the silencer washer 300 is pressed against the adjusting washer 400. The upper edge of the silencer washer 300 is pressed against the lower edge of the adjusting sleeve 160. The material of the silencer washer 300 may be rubber or plastic, and the specific material may be selected according to actual needs.

[0074] In this embodiment, the silencer gasket 300, the adjustment gasket 400 and the mounting seat 600 are connected by pressing, and can be freely separated from each other, which is convenient for later replacement and maintenance, and avoids the silencer gasket 300 and the adjustment gasket 400, and the adjustment gasket 400 and the mounting seat 600 from sticking to each other due to rust. They are connected by pressing, which makes it easy to separate the three from each other.

[0075] In another embodiment, a sealing gasket 200 is provided between the adjusting sleeve 160 and the mounting seat 600. The material of the sealing gasket 200 may be rubber. The sealing gasket 200 may be fixed to the outer edge of the adjusting sleeve 160 by a sleeve or nested connection, and may be extruded and connected to the upper edge of the mounting seat 600 to prevent debris from entering the gasket groove.

[0076] Based on the above structure, when the manhole cover 110 is installed, the mounting seat 600 is fixed in the roadbed, the adjusting washer 400 is embedded in the washer groove 500, the silencer washer 300 is pressed against the upper end of the adjusting washer 400, and then the adjusting sleeve 160 is mortgaged against the upper end of the silencer washer 300. Prior to this, the silencer washer 200 is mounted on the outer edge of the manhole cover 110, and the lower end of the adjusting sleeve 160 is embedded in the washer groove 500 until it is pressed against the silencer washer 300.

[0077] When the height or slope of the manhole cover 110 needs to be adjusted, it is only necessary to replace the adjusting washer 400, move the manhole cover 110 upward until it is separated from the mounting seat 600, and use the barb to hook the silencer washer 300 and the adjusting washer 400 out of the washer groove 500 in turn, place the new adjusting washer 400 in the washer groove 500, and re-insert the silencer washer 300 and the adjusting sleeve 160 in turn in the mounting seat 600 to adjust the height and slope of the manhole cover 110.

[0078] Specifically, when only the height of the manhole cover 110 needs to be raised, the shape of the newly replaced adjusting gasket 400 is a gasket with uniform height. When the slope of the manhole cover 110 needs to be adjusted, the shape of the newly replaced adjusting gasket 400 is a shape with one side high and the other side low. The above is an example of a specific embodiment in which the adjusting gasket 400 adjusts the position of the manhole cover 110 by its shape. The shape of the adjusting gasket 400 can also be adjusted according to specific actual needs.

[0079] By providing an adjusting washer 400, the height and slope of the manhole cover 110 can be adjusted so that the manhole cover 110 can be flush with the ground again, thereby extending the service life of the ground and the manhole cover 110. At the same time, a silencer washer 300 is provided to press against the adjusting washer 400. The silencer washer 300 can play a buffering role. When the manhole cover 110 is rolled, the isolation of the silencer washer 300 can avoid the adjusting sleeve 160 and the washer groove 500 from colliding with each other and generating noise, thereby reducing noise pollution on the road.

[0080] Embodiment 2

[0081] See also Figure 5 , Figure 6 , Figure 7 and Figure 8 In the embodiment of the utility model, the adjusting washer 400 includes a height adjusting washer 410 and a tilt adjusting washer 420 .

[0082] In this embodiment, the adjusting washer 400 can be installed in the washer groove 500 by inlaying, wherein there are at least two types of adjusting washers 400, specifically a height adjusting washer 410 and a tilt adjusting washer 420. The height adjusting washer 410 is a washer with uniform height, and its cross-sectional shape can be square, rectangular or circular. The tilt adjusting washer 420 is a shape with a certain height difference, and the cross-sectional shape of the tilt adjusting washer 420 can be a right-angled trapezoid. The above are specific examples of the types of adjusting washers 400, and the specific shapes can be selected according to actual needs.

[0083] Specifically, in the present embodiment, the adjusting washer 400 can be embedded in the cavity between the mounting seat 600 and the washer groove 500. By adopting the embedding connection, the adjusting washer 400 can be easily replaced and adjusted. Moreover, in the present embodiment, the adjusting washer 400 can be made into a highly unified standard part, which is convenient for the widespread manufacture of the adjusting washer 400 and saves costs.

[0084] Embodiment 3

[0085] See also Figure 6 , Figure 8 , Fig.12 and Fig.13, the heights of the height-adjusting washer 410 at each position are equal; the tilt-adjusting washer 420 includes a lowest end and a highest end, and there is a height difference between the lowest end and the highest end.

[0086] The cross-sectional shape of the height adjustment washer 410 may be rectangular, circular or square. The tilt adjustment washer 420 includes a lowest end and a highest end, and there is a height difference between the lowest end and the highest end. Specifically, the cross-sectional shape of the tilt adjustment washer 420 may be a right-angled trapezoid.

[0087] When manufacturing the adjusting washer 400, the height adjusting washer 410 and the tilt adjusting washer 420 can be manufactured into standard parts. For example, the height adjusting washer 410 can be manufactured into a standard part with a height of 5 mm and a rectangular cross-section, or the tilt adjusting washer 420 can be manufactured into a standard part with a slope of 5°, a narrow side of 5 mm, a wide side of 10 mm, and a right-angled trapezoidal cross-section. When the height and slope of the manhole cover are adjusted by using the adjusting washer 400, multiple adjusting washers 400 can be conveniently stacked and used, and during manufacturing, only two templates need to be set up, which reduces the manufacturing difficulty and cost and facilitates widespread popularization.

[0088] Embodiment 4

[0089] See also Figure 1 , Figure 2 , Figure 6 and Figure 8 In the embodiment of the utility model, the silencer gasket 300 is provided with a barrier structure, and the lower end of the adjustment sleeve 110 is isolated from the mounting seat 600 by the barrier structure.

[0090] In this embodiment, a barrier structure is provided on the silencer gasket 300, and the barrier structure is specifically arranged on the side of the silencer gasket 300 close to the mounting seat 600, wherein the shape of the barrier structure can be L-shaped, U-shaped or V-shaped, and the shape of the barrier structure can be complementary to the shape of the lower end of the adjusting sleeve 160, thereby making the silencer gasket 300 and the adjusting sleeve 160 fixedly connected by inlaying.

[0091] By providing a blocking structure on the sound-absorbing gasket 300, the adjusting sleeve 160 can be isolated from the mounting seat 600 to avoid collision between the adjusting sleeve 160 and the mounting seat 600, thereby achieving a sound-absorbing effect.

[0092] The adjusting sleeve 160 is connected to the silencer gasket 300 by embedding, which can prevent the silencer gasket 300 from turning over when it is placed in the gasket groove 500. When the manhole cover 110 is lifted out, the silencer gasket 300 can be lifted out together with the adjusting sleeve 160, so that the silencer gasket 300 is easy to replace.

[0093] Embodiment 5

[0094] See also Figure 6 , Figure 8 , Fig.14 and Fig.15 There are at least two types of sealing gaskets 200.

[0095] The sealing gasket 200 can be fixed to the outer edge of the manhole cover 110 by nesting, and pressed against the upper edge of the mounting seat 600 , and the manhole cover 110 is fixedly connected to the mounting seat 600 through the sealing gasket 200 .

[0096] In the present embodiment, there are at least two types of heights of the sealing gasket 200. The sealing gasket 200 can be configured as a uniform-height gasket 210 with a rectangular cross-section, or as an inclined gasket 220 with a trapezoidal cross-section. When in use, if it is only necessary to raise the manhole cover 110, the sealing gasket 200 uses a uniform-height gasket 210 with a rectangular cross-section. If the manhole cover 110 needs to be tilted at a certain angle, an inclined gasket 220 with a trapezoidal cross-section can be selected.

[0097] In this embodiment, there are two types of sealing gaskets 200, namely rectangular and trapezoidal. The type of sealing gasket 200 can be selected according to the type of use of the adjusting gasket 400. Specifically, when the adjusting gasket 400 selects the height-adjusting gasket 410, the corresponding rectangular equal-height gasket 210 can be selected. When the adjusting gasket 400 selects the adjusting gasket 420, the corresponding trapezoidal inclined gasket 220 can be selected. The above is a specific example of the selection of the sealing gasket 200. Obviously, this embodiment is not limited to the above specific examples.

[0098] By embedding a sealing gasket 200 at the lower end of the manhole cover 110, the sealing gasket 200 can prevent various debris from entering the gasket groove 500. The cushioning of the sealing gasket 200 can avoid the collision between the manhole cover 110 and the mounting seat 600, thereby extending the service life of the manhole cover 110 and the mounting seat 600 and reducing the noise pollution caused by the collision between the manhole cover 110 and the mounting seat 600.

[0099] Embodiment 6

[0100] See also Figure 4 In this embodiment, the mounting seat 600 may be provided with a gasket groove 500.

[0101] The gasket groove 500 can be set in the mounting seat 600 in an integrally formed manner. The gasket groove 500 is used to guide the manhole cover 110 when it is fixed to the mounting seat 600. The width of the gasket groove 500 can be 10 mm, 20 mm, or 30 mm. The specific value can be adjusted according to actual needs. The shape of the gasket groove 500 can be circular, square or rectangular. The adjusting gasket 400 is fixed in the mounting seat 600 through the gasket groove 500.

[0102] Embodiment 7 See also Figure 3 and Figure 4 At least one functional hole 520 or functional groove 510 is provided in the gasket groove 500 . It is easy to understand that at least one functional hole 520 is provided in the gasket groove 500 , or at least one functional groove 510 is provided in the gasket groove 500 .

[0103] Specifically, in one embodiment, the functional groove 510 is used to facilitate the removal of the adjusting gasket 400 and the silencer gasket 300 from the gasket groove 500. The functional groove 510 can penetrate the gasket groove 500 to the bottom surface of the gasket groove 500. The number of functional grooves 510 can be 1, 2, or 3. The specific number can be selected according to actual needs. The shape of the functional groove 510 can be rectangular, square, or elliptical. The width of the functional groove 510 is 10 mm, 20 mm, or 30 mm. The specific width can be set according to actual usage requirements.

[0104] By providing a through functional groove 510, water stains entering the gasket groove 500 can be removed in time to avoid rusting of the mounting seat 600 due to water stains. At the same time, it is also convenient to hook the adjustment gasket 400 set between the gasket groove 500 and the mounting seat 600.

[0105] In another embodiment, the functional hole 520 is arranged on the lower end surface of the gasket groove 500, and penetrates the lower end surface of the gasket groove 500 until it penetrates the lower end surface of the mounting seat 600. The number of functional holes 520 can be 1, 2, or 3, and the specific number can be selected according to actual needs. The shape of the functional hole 520 can be rectangular, square, circular, or elliptical. In this embodiment, a circular shape is preferred. The diameter of the functional hole 520 can be 10 mm, 20 mm, or 30 mm, and the specific value of the diameter can be adjusted according to the width of the gasket groove 500.

[0106] By providing a through functional hole 520, the accumulated water left between the kit and the mounting seat 600 can be easily drained to avoid rusting of the mounting seat 600 due to water stains. In the process of separating the adjusting gasket 400 from the gasket groove 500, air can enter the gasket groove 500 to avoid the formation of a vacuum cavity between the gasket groove 500 and the adjusting gasket 400, thereby facilitating the replacement of the adjusting gasket 400.

[0107] Embodiment 8

[0108] See also Fig. 9 A reinforcing rib 120 is provided on the back of the manhole cover 110 for use with the functional groove.

[0109] In this embodiment, a reinforcing rib 120 is provided on the back side of the manhole cover 110, and the number of the reinforcing rib 120 is at least one, and the specific number can be one, two, three, or five. The specific number can be set according to the actual number of functional grooves 510. The position of the reinforcing rib 120 corresponds to the functional groove 510, and the reinforcing rib 120 can be inlaid and connected with the functional groove 510 in an inlay manner. The width of the functional groove 510 is slightly wider than the width of the reinforcing rib 120, and the reinforcing rib 120 can be freely inlaid in the functional groove 510.

[0110] The reinforcing ribs 120 and the manhole cover 110 can be manufactured by an integrated molding process. It should be noted that the integrated molding process refers to a processing method in which multiple parts or components are formed into a whole through one processing. The manhole cover 110 and the reinforcing ribs can be manufactured by one or more methods including casting, die-casting, powder metallurgy or 3D printing.

[0111] By providing a reinforcing rib 120 at the lower end of the manhole cover 110, the position of the reinforcing rib 120 corresponds to the functional groove 510, which can ensure that the manhole cover 110 can still be installed on the mounting base 600 at the original position. When the manhole cover 110 is fixedly connected to the mounting base 600 again, the integrity of the signs drawn on the road and the signs on the manhole cover 110 can be guaranteed. That is, when the manhole cover 110 is re-fastened, it can be ensured that the road signs above the manhole cover 110 can be interlocked with the road signs above the road, thereby avoiding the destruction of the integrity of the road signs due to the misalignment of the manhole cover 110.

[0112] Embodiment 9

[0113] See also Fig.10 A square manhole cover 700 includes a rectangular manhole cover 710 and a manhole cover base 720. A manhole cover height and slope adjustment structure 100 is provided between the rectangular manhole cover 710 and the manhole cover base 720.

[0114] It is easy to understand that the cross-sectional shape of the adjusting gasket 400 in the manhole cover height and slope adjusting structure 100 of the rectangular drainage manhole cover 700 can be square or trapezoidal, and the specific shape can be selected and adjusted according to actual needs.

[0115] Embodiment 10

[0116] See also Fig.11 A road manhole cover 800 includes a hook hole 130 penetrating the manhole cover 110, a marking structure 150 and an anti-slip structure 140 arranged on the surface of the manhole cover 110, and an integrally formed adjustment sleeve 160 is arranged at the lower end of the manhole cover 110;

[0117] The lower end of the adjusting sleeve 160 is pressed and connected with the sound-absorbing gasket 300 .

[0118] In the present embodiment, a manhole cover 110 includes a lifting hook hole 130 that passes through the manhole cover 110. The shape of the lifting hook hole 130 can be cylindrical, or other shapes that are convenient for hooking and pulling. The number of the lifting hook holes 130 can be one, two, or three. The specific number can be selected according to actual needs. In the present embodiment, two are preferably selected.

[0119] In this embodiment, an identification structure 150 is further provided on the surface of the manhole cover 110. The identification structure 150 is an identification plate. The identification structure 150 can identify the type and purpose of the manhole cover 110. An anti-slip structure 140 is also provided on the surface of the manhole cover 110. The anti-slip structure 140 can be an anti-slip pattern. The anti-slip pattern can specifically be a "cross" shaped anti-slip pattern, or other patterns with anti-slip function.

[0120] In another embodiment, an integrally formed adjusting sleeve 160 is provided at the lower end of the manhole cover 110. The shape of the adjusting sleeve 160 may be cylindrical, rectangular or square. The length of the adjusting sleeve 160 may be 50 mm, 80 mm, 100 mm or 200 mm. The specific length may be set according to the depth of the gasket groove 500. The material of the adjusting sleeve 160 may be the same as that of the manhole cover 110, and may specifically be ductile iron.

[0121] In yet another embodiment, the lower end of the adjusting sleeve 160 is embedded and connected with the sound-absorbing gasket 300 , and after the adjusting sleeve 160 and the sound-absorbing gasket 300 are connected, they can be embedded in the gasket groove 500 together.

[0122] By providing the adjusting sleeve 160, the manhole cover 110 can be embedded in the gasket groove 500, so that the center of gravity of the manhole cover 110 is located below the road surface, which can prevent the manhole cover 110 from tilting up after being rolled over, thereby avoiding traffic accidents.

[0123] Embodiment 11

[0124] A sewage manhole cover 110 includes a manhole cover height and slope adjustment structure 100.

[0125] In this embodiment, a sewage manhole cover 110 is provided, and the sewage manhole cover 110 includes a manhole cover height and slope adjustment structure 100. When the sewage manhole cover 110 is lifted upward, an adjustment gasket 400 with a rectangular or trapezoidal cross-section is embedded in the gasket groove 500, thereby achieving the effect of adjusting the height of the sewage manhole cover 110 or adjusting the slope of the sewage manhole cover 110.

[0126] Embodiment 12

[0127] A rainwater manhole cover comprises a manhole cover height and slope adjustment structure 100.

[0128] A fireproof manhole cover comprises a manhole cover height and slope adjustment structure 100.

[0129] A power manhole cover comprises a manhole cover height and slope adjustment structure 100.

[0130] A communication manhole cover comprises a manhole cover height and slope adjustment structure 100.

[0131] A water supply manhole cover comprises a manhole cover height and slope adjustment structure 100.

[0132] A gas manhole cover comprises a manhole cover height and slope adjustment structure 100.

[0133] A greening manhole cover comprises a manhole cover height and slope adjustment structure 100.

[0134] In this embodiment, various manhole covers include a manhole cover height and slope adjustment structure 100. The height and slope of the manhole covers are adjusted by adjusting the gasket 400. The sound-absorbing gasket 300 cushions the impact between the manhole cover 110 and the mounting seat 600, reduces the noise generated by the rolling of the manhole cover 110, and extends the service life of the manhole cover 110, the mounting seat 600 and the road.

[0135] In the description of this specification, the description with reference to the terms "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0136] In addition, the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A manhole cover height and slope adjustment structure, fixedly mounted on a mounting seat in a roadbed, and a manhole cover fixed to the upper end of the mounting seat through an adjustment structure, characterized in that: The regulatory structure comprises: a replaceable adjusting washer disposed in the washer groove; and A sound-absorbing gasket disposed at the lower edge of the manhole cover and pressed against the adjusting gasket; and A sealing gasket is embedded in the outer edge of the manhole cover and pressed against the upper edge of the mounting seat; wherein there are at least two types of adjusting gaskets.

2. The height and slope adjustment structure of the manhole cover according to claim 1 is characterized in that: The adjusting washers are height-adjusting washers and tilt-adjusting washers.

3. The height and slope adjustment structure of the manhole cover according to claim 2 is characterized in that: The heights of the height-adjusting washers at various positions are equal; the tilt-adjusting washers include a lowest end and a highest end, and there is a height difference between the lowest end and the highest end.

4. The height and slope adjustment structure of the manhole cover according to claim 1 is characterized in that: The sound-absorbing gasket is provided with a baffle structure.

5. The height and slope adjustment structure of a manhole cover according to claim 1 is characterized in that: There are at least two types of sealing gaskets.

6. The height and slope adjustment structure of a manhole cover according to claim 1, characterized in that: A gasket groove may be provided in the mounting seat.

7. The height and slope adjustment structure of the manhole cover according to claim 6 is characterized in that: At least one functional hole or functional groove is provided in the gasket groove.

8. The height and slope adjustment structure of a manhole cover according to claim 1, characterized in that: The back of the well cover is provided with a reinforcing rib plate used in conjunction with the functional groove.

9. A manhole cover, comprising the manhole cover height and slope adjustment structure as described in any one of claims 1 to 8, wherein the manhole cover comprises a square manhole cover, or a round manhole cover, or a sewage manhole cover, or a rainwater manhole cover, or a fireproof manhole cover, or a power manhole cover, or a communication manhole cover, or a water supply manhole cover, or a gas manhole cover, or a greening manhole cover.

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