Replaceable gasket structure for adjusting sinking of well lid

Abstract

The utility model discloses a replaceable gasket structure used for adjusting sinking of a well lid, which comprises a well lid body and a rubber-covered steel gasket, the rubber-covered steel gasket is coaxially arranged on the bottom surface of a skirt edge part on the periphery of the bottom of the well lid body, and the top surface of the rubber-covered steel gasket abuts against the bottom surface of the skirt edge part. A plurality of combined connecting pieces are arranged on the inner periphery of the rubber-covered steel gasket in an extending mode, and the rubber-covered steel gasket is detachably and coaxially fixed to the bottom face of the skirt edge part through the combined connecting pieces. The well lid has the beneficial effects that the rubber-covered steel gasket is coaxially and detachably fixed on the bottom surface of the skirt edge part of the well lid body through the combined connecting piece, so that the rubber-covered steel gasket and the well lid body can be connected into a whole through the arrangement of the combined connecting piece, and the rubber-covered steel gasket can be conveniently arranged to adjust the sinking problem of the well lid body; and meanwhile, the rubber-covered steel gasket can be conveniently and quickly combined at the lower part of the skirt edge part of the well lid body.

Description

Technical Field

[0001] The utility model relates to the field of manhole cover auxiliary components, and particularly relates to a replaceable washer structure for adjusting the sinking of a manhole cover. Background Technique

[0002] When carrying out road construction and renovation, the problem of inspection manhole covers needs to be fully considered. At present, the installed manhole covers will rotate, wear and sink synchronously under the huge torque and heavy pressure of automobile tires, and individual manhole covers with serious wear will break, endangering people's traffic safety. Especially in the case of wide roads, high vehicle speeds and heavy vehicle types, the wear speed of manhole covers is extremely fast, and newly replaced manhole covers will start to sink seriously within two or three years.

[0003] After the manhole cover sinks, due to the height difference, passing vehicles will form long-term and high-frequency impacts on the manhole cover during bumps, shortening the service life of the manhole cover further, and at the same time increasing the fitting clearance with the manhole ring, resulting in shaking and rattling. Moreover, when suffering strong impacts, the manhole cover may even break away from the manhole ring and lose the protection of the wellhead. The utility model patent with the application number 202322092701.X provides a replaceable manhole cover structure for adjusting the sinking of a manhole cover, belonging to the technical field of steel structure prefabricated components, and solves the problem that the existing technology requires frequent replacement of the manhole ring and excavation of the road when the manhole cover sinks. The structure includes a large inspection well cover, a detachable and replaceable manhole cover washer, and a small inspection well cover arranged up and down.

[0004] Although the above solution can achieve the repair of the sinking of the manhole cover, in the actual implementation process, since the washer is not connected to the manhole cover as a whole and additional fixing clips need to be configured, it is not only very inconvenient to replace the washer subsequently, but also special accessories need to be selected for the fixing clips when replacing the washer. Content of the Utility Model

[0005] The purpose of the utility model is to provide a replaceable washer structure for adjusting the sinking of a manhole cover to solve the above problems. The rubber-coated steel washer is coaxially and detachably fixed to the bottom surface of the skirt part of the manhole cover body through a combined connecting piece. Through the setting of the combined connecting piece, the rubber-coated steel washer can be connected to the manhole cover body as a whole, as described in detail below.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A replaceable washer structure for adjusting the sinking of a manhole cover provided by the utility model includes a manhole cover body and a rubber-coated steel washer. The rubber-coated steel washer is coaxially arranged on the bottom surface of the skirt part of the periphery of the bottom of the manhole cover body, and the top surface of the rubber-coated steel washer abuts against the bottom surface of the skirt part.

[0008] A plurality of combined connectors are arranged to extend along the inner circumference of the rubber-coated steel washer. A part of the combined connectors is fixed at the corresponding position on the bottom surface of the top of the well cover body, and the rubber-coated steel washer is coaxially and detachably fixed on the bottom surface of the skirt part through the combined connectors.

[0009] Preferably, the rubber-coated steel washer is a steel ring coated with a rubber outer lining on the periphery.

[0010] Preferably, the steel ring of the rubber-coated steel washer is provided with three specifications of thin, medium and thick thicknesses, and the thickness of the rubber outer lining coated on the periphery of the rubber-coated steel washer is at least 3 mm.

[0011] Preferably, the inner and outer diameters of the rubber-coated steel washer are respectively the same as the inner and outer diameters of the bottom surface of the skirt part.

[0012] Preferably, the combined connector includes a fixed lifting lug and a locking rod. A plurality of horizontally arranged fixed lifting lugs are fixedly connected to extend along the inner circumference of the rubber-coated steel washer, and each fixed lifting lug is provided with a mating hole. The locking rods are vertically and fixedly installed above the mating holes on the bottom surface of the top of the well cover body, and the locking rods vertically penetrate through the corresponding mating holes below. A locking ring is coaxially and detachably installed on the part of the locking rod extending out of the bottom end of the corresponding mating hole, and each locking ring presses against the bottom surface of the corresponding fixed lifting lug.

[0013] Preferably, a plurality of layers of support washers are coaxially inserted in a clearance fit manner in the part of the locking rod between the bottom surface of the top of the well cover body and the top surface of the fixed lifting lug, and the distance between the bottom surface of the top of the well cover body and the top surface of the fixed lifting lug is the same as the thickness of the plurality of layers of support washers, so as to fill the gap between the bottom surface of the top of the well cover body and the top surface of the fixed lifting lug through the support washers.

[0014] Preferably, the mating holes are all waist-shaped holes, and the outer diameter of the locking ring is larger than the aperture of the mating hole.

[0015] Preferably, the locking rods are all flat base screws, the locking rings are all nylon locknuts, and the locking rings are coaxially and detachably connected to the locking rods through threaded fit.

[0016] Adopting the above-mentioned replaceable washer structure for adjusting the sinking of the manhole cover, specifically during the process of combining the rubber-coated steel washer on the bottom surface of the skirt part of the manhole cover body, the rubber-coated steel washer is coaxially detachably fixed on the bottom surface of the skirt part of the manhole cover body through the combination connecting piece. In this way, through the setting of the combination connecting piece, the rubber-coated steel washer can be connected to the manhole cover body as a whole, which is not only convenient for setting the rubber-coated steel washer to complete the adjustment of the sinking problem of the manhole cover body, but also convenient for quickly combining the rubber-coated steel washer under the skirt part of the manhole cover body. Specifically, when using the combination connecting piece for combination and disassembly operations, when combining, since a plurality of horizontally arranged fixed lifting lugs are fixedly connected to the inner periphery extension of the rubber-coated steel washer, and at the same time, a plurality of locking rods corresponding to the matching holes of the fixed lifting lugs are vertically fixedly connected to the top bottom surface of the manhole cover body. In this way, by passing the locking rod through the matching hole and then installing the locking ring to press against the bottom surface of the fixed lifting lug, the rubber-coated steel washer can be coaxially combined and fixed at the bottom of the skirt part. The fixed combination method of the rubber-coated steel washer at the bottom of the skirt part is simple and easy to implement, which is convenient for quickly combining the rubber-coated steel washer at the bottom of the skirt part of the manhole cover body for use. When performing the disassembly operation, only by detaching the locking rings from the bottom ends of the locking rods, the rubber-coated steel washer can be separated from the skirt part of the manhole cover body by sliding down along the locking rod through the matching hole. The disassembly method of the rubber-coated steel washer at the bottom of the skirt part is simple and easy to implement, which is convenient for subsequent disassembly, replacement and maintenance of the rubber-coated steel washer.

[0017] The beneficial effects are as follows: 1. The rubber-coated steel washer of the present utility model is coaxially detachably fixed on the bottom surface of the skirt part of the manhole cover body through the combination connecting piece. In this way, through the setting of the combination connecting piece, the rubber-coated steel washer can be connected to the manhole cover body as a whole, which is not only convenient for setting the rubber-coated steel washer to complete the adjustment of the sinking problem of the manhole cover body, but also convenient for quickly combining the rubber-coated steel washer under the skirt part of the manhole cover body;

[0018] 2. A plurality of horizontally arranged fixed lifting lugs are fixedly connected to the inner periphery extension of the rubber-coated steel washer, and at the same time, a plurality of locking rods corresponding to the matching holes of the fixed lifting lugs are vertically fixedly connected to the top bottom surface of the manhole cover body. In this way, by passing the locking rod through the matching hole and then installing the locking ring to press against the bottom surface of the fixed lifting lug, the rubber-coated steel washer can be coaxially combined and fixed at the bottom of the skirt part. The fixed combination method of the rubber-coated steel washer at the bottom of the skirt part is simple and easy to implement, which is convenient for quickly combining the rubber-coated steel washer at the bottom of the skirt part of the manhole cover body for use;

[0019] 3. Only by detaching the locking rings from the bottom end of the locking rod can the rubber-coated steel washer slide vertically downward along the locking rod through the mating hole and separate from the skirt part of the well cover body. The splitting method of the rubber-coated steel washer at the bottom of the skirt part is simple and easy to implement, facilitating the subsequent disassembly, installation, replacement, and maintenance of the rubber-coated steel washer. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is the overall front view schematic diagram of the present invention;

[0022] Figure 2 is the present invention Figure 1 top view schematic diagram of the rubber-coated steel washer.

[0023] The descriptions of the reference numerals are as follows:

[0024] 1. Well cover body; 101. Skirt part; 2. Rubber-coated steel washer; 3. Combined connecting piece; 301. Locking rod; 302. Support washer; 303. Fixed lifting lug; 304. Locking ring; 305. Mating hole. Detailed Embodiment

[0025] To make the purpose, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present invention.

[0026] See Figure 1 and Figure 2As shown in the figure, the utility model provides a replaceable washer structure for adjusting the sinking of the manhole cover, including a manhole cover body 1 and a rubber-coated steel washer 2. The bottom surface of the skirt part 101 on the periphery of the bottom of the manhole cover body 1 is coaxially provided with a rubber-coated steel washer 2, and the top surface of the rubber-coated steel washer 2 abuts against the bottom surface of the skirt part 101. A plurality of combined connectors 3 are extended and arranged on the inner periphery of the rubber-coated steel washer 2. Part of the combined connectors 3 are fixed at the corresponding positions on the bottom surface of the top of the manhole cover body 1, and the rubber-coated steel washer 2 is detachably coaxially fixed on the bottom surface of the skirt part 101 through the combined connectors 3. Specifically, the combined connector 3 includes a fixed lifting lug 303 and a locking rod 301. A plurality of horizontally arranged fixed lifting lugs 303 are extended and fixedly connected to the inner periphery of the rubber-coated steel washer 2, and each fixed lifting lug 303 is provided with a mating hole 305. Locking rods 301 are vertically fixedly installed on the bottom surface of the top of the manhole cover body 1 at the positions above the mating holes 305, and the locking rods 301 vertically penetrate through the corresponding mating holes 305 below. A locking ring 304 is coaxially detachably installed on the part of the locking rod 301 extending out of the bottom end of the corresponding mating hole 305, and each locking ring 304 is pressed against the bottom surface of the corresponding fixed lifting lug 303. The purpose of such a setting is that the rubber-coated steel washer 2 can be coaxially combined and fixed at the bottom of the skirt part 101 by the way that the locking rod 301 passes through the mating hole 305 and then the locking ring 304 is pressed against the bottom surface of the fixed lifting lug 303. At the same time, only by detaching the locking rings 304 from the bottom ends of the locking rods 301, the rubber-coated steel washer 2 can be separated from the skirt part 101 of the manhole cover body 1 by sliding down along the locking rod 301 through the mating hole 305. The combination and disassembly methods of the rubber-coated steel washer 2 at the bottom of the skirt part 101 are simple and easy to implement.

[0027] See Figure 1 and Figure 2 As shown in the figure, the following optimizations are respectively carried out on the rubber-coated steel washer 2 and the combined connector 3. Specifically for the rubber-coated steel washer 2, the rubber-coated steel washer 2 is a steel ring coated with a rubber outer lining on the periphery, so that the rubber-coated steel washer 2 has a design style that meets the use requirements. At the same time, optionally, the thickness of the steel ring of the rubber-coated steel washer 2 is set in three specifications: thin, medium, and thick. The preferred thickness range of the thin one is 5 mm and below, the medium thickness range is 5 mm to 10 mm, and the thick thickness range is 10 mm to 20 mm. At the same time, the thickness of the rubber outer lining coated on the periphery of the rubber-coated steel washer 2 is at least 3 mm. Such a setting is convenient to match the appropriate rubber-coated steel washer 2 according to the actual situation of the sinking of the manhole cover. Further optionally, the inner and outer diameters of the rubber-coated steel washer 2 are respectively kept consistent with the inner and outer diameters of the bottom surface of the skirt part 101. In this way, it is convenient for the rubber-coated steel washer 2 to be more closely arranged on the bottom surface of the skirt part 101, preventing interference in the use position of the wellhead.

[0028] Specifically for the combined connector 3, multiple layers of support washers 302 are coaxially inserted in a clearance fit manner in the part of the locking rod 301 between the bottom surface of the top of the manhole cover body 1 and the top surface of the fixed lifting lug 303. Moreover, the distance between the bottom surface of the top of the manhole cover body 1 and the top surface of the fixed lifting lug 303 is consistent with the thickness of the multiple layers of support washers 302, so as to fill the gap between the bottom surface of the top of the manhole cover body 1 and the top surface of the fixed lifting lug 303 through the support washers 302. With such a setting, it is convenient to enhance the support stability of the fixed lifting lug 303 through the setting of the support washers 302, which is beneficial to improving the compressive capacity of the fixed lifting lug 303. At the same time, optionally, the mating holes 305 are all waist-shaped holes, and the outer diameter of the locking ring 304 is greater than the aperture of the mating hole 305, so that the mating hole 305 can smoothly allow the locking rod 301 to pass through, and at the same time, it is convenient for multiple mating holes 305 to be respectively aligned with the locking rod 301 one by one. Further optionally, the locking rods 301 are all flat base screws, the locking rings 304 are all nylon lock nuts, and the locking rings 304 are coaxially detachably connected to the locking rods 301 by means of threaded fit. With such a setting, it is not only convenient to realize the quick combination and disassembly of the locking ring 304 and the locking rod 301 by means of screwing, but also convenient to prevent the locking ring 304 from loosening naturally during use.

[0029] With the above structure, specifically during the process of combining the rubber-coated steel washer 2 on the bottom surface of the skirt part 101 of the manhole cover body 1, the rubber-coated steel washer 2 is coaxially detachably fixed on the bottom surface of the skirt part 101 of the manhole cover body 1 through the combined connector 3. Thus, through the setting of the combined connector 3, the rubber-coated steel washer 2 can be connected to the manhole cover body 1 as a whole, which is not only convenient to set the rubber-coated steel washer 2 to complete the adjustment of the sinking problem of the manhole cover body 1, but also convenient to quickly combine the rubber-coated steel washer 2 under the skirt part 101 of the manhole cover body 1. Specifically when using the combined connector 3 for combination and disassembly operations, when combining, since multiple horizontally arranged fixed lifting lugs 303 are fixedly connected to the inner periphery extension of the rubber-coated steel washer 2, and at the same time, multiple locking rods 301 vertically fixedly connected to the bottom surface of the top of the manhole cover body 1 and respectively aligned with the mating holes 305 of the fixed lifting lugs 303, the rubber-coated steel washer 2 can be coaxially combined and fixed at the bottom of the skirt part 101 by means of the locking rods 301 passing through the mating holes 305 and then adding the locking rings 304 to press against the bottom surface of the fixed lifting lugs 303. The fixed combination method of the rubber-coated steel washer 2 at the bottom of the skirt part 101 is simple and easy to implement, which is convenient to quickly combine the rubber-coated steel washer 2 at the bottom of the skirt part 101 of the manhole cover body 1 for use. When performing the disassembly operation, only by detaching the locking rings 304 from the bottom ends of the locking rods 301, the rubber-coated steel washer 2 can be separated from the skirt part 101 of the manhole cover body 1 by sliding down along the locking rods 301 through the mating holes 305. The disassembly method of the rubber-coated steel washer 2 at the bottom of the skirt part 101 is simple and easy to implement, which is convenient for subsequent disassembly, replacement and maintenance of the rubber-coated steel washer 2.

[0030] Specifically, in the actual manufacturing stage of the above-mentioned rubber-coated steel washer 2 and the well cover body 1, during the manufacturing of the rubber-coated steel washer 2, a steel ring with the same inner diameter as the sunken wellhead is manufactured, and the width is the same as that of the load-bearing platform of the well cover. The thickness is divided into three grades of thin, medium, and thick according to the three grades of the sunken dimension of the well cover body 1, and production is carried out separately. Then, four fixed lifting lugs 303 are welded and fixed symmetrically in a cross shape inside the steel ring. Finally, metal rubber coating is carried out, and the rubber coating thickness is 3 mm at the periphery. At the same time, during the manufacturing of the well cover body 1, the skirt part 101 of the sunken well cover body 1 is polished and cut flat. Holes for fixing the locking rod 301 are correspondingly drilled on the top and bottom surfaces of the well cover body 1 according to the positions of the mating holes 305 of the four fixed lifting lugs 303, and the locking rod 301 is installed. Then, the part of the locking rod 301 between the fixed lifting lug 303 and the top and bottom surfaces of the well cover body 1 is filled by coaxially sleeving and supporting the washer 302. Finally, a locking ring 304 is installed at the bottom end of the locking rod 301 and pressed against the bottom surface of the fixed lifting lug 303 respectively. Then, after the load-bearing platform of the inner opening of the sunken well ring is polished and cut flat by machinery, the well cover body 1 with the rubber-coated steel washer 2 is covered to complete the setting.

[0031] As mentioned above, it is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. A replaceable gasket structure for adjusting the sinking of a manhole cover, comprising a manhole cover body (1) and a rubber-coated steel gasket (2), characterized in that: The rubber-coated steel gasket (2) is coaxially arranged on the bottom surface of the skirt portion (101) at the bottom circumference of the manhole cover body (1), and the top surface of the rubber-coated steel gasket (2) abuts against the bottom surface of the skirt portion (101); A plurality of combined connecting pieces (3) are extended from the inner periphery of the rubber-coated steel gasket (2), and the combined connecting pieces (3) are partially fixed at positions corresponding to the bottom surface of the top of the manhole cover body (1), and the rubber-coated steel gasket (2) is detachably and coaxially fixed to the bottom surface of the skirt portion (101) via the combined connecting pieces (3).

2. A replaceable gasket structure for adjusting the sinking of a manhole cover according to claim 1, characterized in that: The rubber-coated steel gasket (2) is a steel ring with a rubber outer lining on the periphery.

3. A replaceable gasket structure for adjusting the sinking of a manhole cover according to claim 2, characterized in that: The thickness of the steel ring of the rubber-coated steel washer (2) is set to three specifications: thin, medium and thick. At the same time, the thickness of the rubber outer lining covering the outer periphery of the rubber-coated steel washer (2) is at least 3 mm.

4. A replaceable gasket structure for adjusting the sinking of a manhole cover according to claim 3, characterized in that: The inner and outer diameters of the rubber-coated steel gasket (2) are respectively consistent with the inner and outer diameters of the bottom surface of the skirt portion (101).

5. A replaceable gasket structure for adjusting the sinking of a manhole cover according to any one of claims 2 to 4, characterized in that: The combined connecting piece (3) comprises a fixing ear (303) and a locking rod (301); a plurality of flat fixing ears (303) are extended and fixedly connected to the inner circumference of the rubber-coated steel gasket (2); and the fixing ears (303) are each provided with a matching hole (305); the locking rod (301) is vertically fixedly installed on the top bottom surface of the manhole cover body (1) above the matching hole (305); and the locking rod (301) is vertically inserted through the corresponding matching hole (305) below; the portion of the locking rod (301) extending out of the bottom end of the corresponding matching hole (305) is coaxially and detachably installed with a locking ring (304), and the locking ring (304) is pressed against the bottom surface of the corresponding fixing ear (303).

6. A replaceable gasket structure for adjusting the sinking of a manhole cover according to claim 5, characterized in that: The portion of the locking rod (301) between the top bottom surface of the manhole cover body (1) and the top surface of the fixing ear (303) is coaxially interspersed with multiple layers of supporting washers (302) in a clearance-fitting manner, and the spacing between the top bottom surface of the manhole cover body (1) and the top surface of the fixing ear (303) is consistent with the thickness of the multiple layers of the supporting washers (302), so as to fill the gap between the top bottom surface of the manhole cover body (1) and the top surface of the fixing ear (303) through the supporting washers (302).

7. A replaceable gasket structure for adjusting the sinking of a manhole cover according to claim 5, characterized in that: The matching holes (305) are all waist-shaped holes, and the outer diameter of the locking ring (304) is larger than the hole diameter of the matching holes (305).

8. A replaceable gasket structure for adjusting the sinking of a manhole cover according to claim 6 or 7, characterized in that: The locking rods (301) are all flat screws, the locking rings (304) are all nylon anti-loosening nuts, and the locking rings (304) are all coaxially detachably connected to the locking rods (301) by means of threaded engagement.

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