Composite material anti-tripping natural suppression manhole cover and method thereof

Abstract

The present invention discloses a composite material anti-jumping natural inhibition type manhole cover and a method thereof, and belongs to the field of manhole cover technology. The composite material anti-jumping natural inhibition type manhole cover and a method thereof of the present invention include a metal manhole cover, a manhole cover seat and a manhole platform seat, and the manhole cover seat is provided with a built-in gasket ring inside. In order to solve the problem that the pillar and U-shaped column seat structure in the above scheme can achieve the effect of bite and anti-deviation, but its overall support is relatively poor, and it will also wear out over time and lose the bite force, the locking operation of the manhole cover can be completed by the rotation combination of the male shaft lock ring buckle and the female shaft lock ring buckle, so that when a vehicle passes on the manhole cover, the manhole cover will not bounce up due to the influence of the reaction force. This locking structure can play an anti-theft role while the manhole cover is deflected. The novel locking structure can prevent the manhole cover from being stolen except for the staff.

Description

Technical Field

[0001] The invention relates to the technical field of manhole covers, and in particular to a composite material anti-tripping natural inhibition manhole cover and a method thereof. Background Art

[0002] Manhole covers are used to cover deep wells on roads or in homes to prevent people or objects from falling. According to the material, they can be divided into metal manhole covers, high-strength fiber cement concrete manhole covers, resin manhole covers, etc. The invention with application number 200710004933.8 discloses an anti-theft, anti-jumping naturally inhibited reinforced structure manhole cover and manhole cover seat and an anti-theft method thereof. The manhole cover has a pillar cast on the bottom edge of the manhole cover, which is used to engage with the U-shaped column seat of the manhole cover seat to form an integral structure, which can prevent the manhole cover from vertically displacing upward and detaching from the manhole cover seat, and has multiple functions such as anti-theft, anti-noise, anti-slip, anti-jumping, anti-displacement, and anti-falling, to avoid traffic accidents caused by displacement of the manhole cover.

[0003] Although the pillars and U-shaped column base structure in the above scheme can achieve the effect of bite and anti-deviate, its overall support is relatively poor. As the use time goes by, it will also wear out and lose the bite force. Therefore, it does not meet the existing needs. In this regard, we propose a composite material anti-jump natural suppression manhole cover and method. Summary of the invention

[0004] The purpose of the present invention is to provide a composite material anti-jumping natural inhibition type manhole cover and a method thereof. The locking operation of the manhole cover can be completed by the rotational combination of the male shaft locking ring buckle and the female shaft locking ring buckle, so that when a vehicle passes over the manhole cover, the manhole cover will not bounce upward due to the influence of the reaction force. This locking structure can not only prevent the manhole cover from being deflected, but also play an anti-theft role. The novel locking structure can prevent the manhole cover from being stolen by people other than the staff, and can solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite material anti-jumping natural inhibition manhole cover, comprising a metal manhole cover, a manhole cover seat and a manhole platform seat, the manhole cover seat is provided with a built-in gasket, and a manhole cover assembly groove is provided between the built-in gasket and the manhole cover seat, the metal manhole cover is connected to the manhole cover seat through the manhole cover assembly groove, and a manhole cover metal patch is provided on the outer surface of the metal manhole cover, a rubber patch is provided at the bottom of the manhole cover metal patch, and the manhole cover metal patch is bonded and connected to the metal manhole cover through the rubber patch, barb locks are provided on both sides of the surface of the metal manhole cover, and the barb locks extend through to the bottom of the metal manhole cover, the manhole cover seat is provided above the manhole platform seat, and a drainage ditch is provided on the outer surface of the manhole cover seat, and an anchor screw is provided at the bottom of the manhole platform, and there are multiple anchor screws.

[0006] Preferably, male shaft locking ring buckles are provided on both sides of the bottom of the metal manhole cover, and the male shaft locking ring buckles are welded to the metal manhole cover, and female shaft locking ring buckles are provided on both sides of the top of the built-in gasket, and the female shaft locking ring buckles are welded to the built-in gasket.

[0007] Preferably, the male shaft locking ring buckle includes an upper locking plate, and an upper sliding groove is provided between the upper locking plate and the metal manhole cover, an end plate is provided at one end of the upper sliding groove, and the end plate and the upper locking plate are arranged as an integrated structure, the female shaft locking ring buckle includes a lower locking plate, and a lower sliding groove is provided between the lower locking plate and the built-in gasket, and both ends of the upper locking plate are provided with arc chamfers.

[0008] Preferably, the upper locking plate is slidably connected to the female shaft locking ring buckle through a lower sliding groove, and the lower locking plate is slidably connected to the male shaft locking ring buckle through an upper sliding groove, the thickness of the upper locking plate and the lower locking plate is set to 5mm, the height of the upper sliding groove is set to 5mm, and the height of the lower sliding groove is set to 7.5mm.

[0009] Preferably, a surrounding sleeve is arranged below the manhole cover sleeve, and the surrounding sleeve and the manhole cover sleeve are arranged as an integrated structure, locking lifting blocks are arranged around the outer surface of the surrounding sleeve, and the locking lifting blocks are fixedly connected to the surrounding sleeve, the outer surface of the locking lifting block is provided with locking lifting holes, and the outer surface of the built-in gasket is provided with a side-mounted locking groove.

[0010] Preferably, a lock shaft receiving groove is provided inside the built-in gasket, and there are eight lock shaft receiving grooves. A self-locking elastic shaft mechanism is provided inside the lock shaft receiving groove, and the self-locking elastic shaft mechanism includes a stop seat shaft, a constant torsion spring and a piston sleeve. The constant torsion spring is provided between the stop seat shaft and the piston sleeve, and there are two constant torsion springs. The stop seat shaft is connected to the built-in gasket by screws, and the piston sleeve is slidably connected to the lock shaft receiving groove.

[0011] Preferably, a metal pulley is provided on the inner side of the top of the piston sleeve, and the metal pulley is rotatably connected to the piston sleeve, a limiting clamping plate is provided above the metal pulley, and the limiting clamping plate is connected to the built-in gasket through a clamping groove, a lifting wheel groove is provided on the outer surface of the limiting clamping plate, and the metal pulley is connected to the limiting clamping plate through the lifting wheel groove.

[0012] Preferably, alignment and correction grooves are provided on all four sides of the inner side of the manhole platform, and a wear-resistant lining is provided at the bottom of the alignment and correction groove, a rubber wear-resistant sleeve is provided inside the alignment and correction groove, and the rubber wear-resistant sleeve is fit-connected to the alignment and correction groove, the locking lifting block is connected to the manhole platform through the alignment and correction groove, and the locking lifting block is fit-connected to the rubber wear-resistant sleeve and the wear-resistant lining.

[0013] Preferably, an inner expansion shaft ring is provided on the inner side of the bottom of the manhole pedestal, and the inner expansion shaft ring and the manhole pedestal are arranged as an integrated structure, an anchoring screw hole is provided on the outer surface of the inner expansion shaft ring, and the anchoring screw is connected to the inner expansion shaft ring through the anchoring screw hole, and the built-in gasket is fit-fittingly connected to the inner expansion shaft ring.

[0014] A method for using a composite material anti-tripping natural suppression manhole cover comprises the following steps:

[0015] Step 1: First, connect the manhole platform with the preset vertical manhole pipe on the road surface. The manhole platform is generally a prefabricated concrete structure, and the inner expansion shaft ring at the bottom is a metal structure. After the inner expansion shaft ring is connected to the manhole pipe, use the anchor screw to pass through the anchor screw hole to anchor it to the pipe structure. The interface needs to be treated for anti-seepage;

[0016] Step 2: Combine the built-in gasket and the manhole cover seat, and lock the built-in gasket through the lock hole structure on the surface of the locking lifting block to prevent it from rotating and deviating inside the manhole cover seat. Then, place the built-in gasket together with the manhole cover seat on the top of the manhole platform. During the placement process, the locking lifting block needs to be aligned with the alignment correction groove;

[0017] Step 3: Use the locking lifting block and the alignment correction groove to complete the connection and fixation between the manhole cover seat and the manhole platform seat. The placed manhole cover seat is flush with the road surface or slightly lower than the road surface -mm. Finally, use the metal hook to hook the barb locks on both sides of the metal manhole cover and put it into the manhole cover assembly groove set between the built-in gasket and the manhole cover seat;

[0018] Step 4: When inserting, you need to put the male shaft lock ring buckle at the bottom into the empty space between the female shaft lock ring buckle below, and then rotate the metal manhole cover clockwise to make the male shaft lock ring buckle engage with the female shaft lock ring buckle. During the rotation process, the metal pulley above the self-locking elastic shaft mechanism inside the built-in gasket can assist the male shaft lock ring buckle to rotate;

[0019] Step 5: When the end plate of the male shaft lock ring buckle fits with the female shaft lock ring buckle, it means that the locking is completed. At this time, the self-locking elastic shaft mechanism located in the outer area of ​​the end plate will use the internal spring to push the pulley out a short distance after losing the pressure from the manhole cover. The pulley height in the compressed state is 1-1.5mm, and the pulley height in the pressure-free state is 3-3.5mm;

[0020] Step 6: After the pulley is raised, the edge of the metal manhole cover cannot separate from the manhole cover seat by itself. When separation is required, the barb must be extended from the barb lock first, and the barb structure is used to press the pulley in the outer area of ​​the end plate. Then, the manhole cover is dragged counterclockwise to separate the male shaft lock ring buckle and the female shaft lock ring buckle.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The locking mechanism of the present invention is to lock the locking wheel with the help of the spring, and then the locking wheel can be locked.

[0023] 2. The present invention has a total of eight groups of self-locking elastic shaft mechanisms, four of which are distributed on the inner side of the female shaft locking ring buckle, and the other four are distributed in the gap area between the female shaft locking ring buckle, each group of locking elastic shaft mechanisms is composed of a stop seat shaft, a constant torsion spring and a piston sleeve plate, wherein the constant torsion spring is arranged between the stop seat shaft and the piston sleeve plate, the stop seat shaft below is fixed to the built-in gasket by screws, and a sliding structure is provided between the upper piston sleeve plate and the locking shaft receiving groove, a metal pulley structure is arranged inside the piston sleeve plate, a limiting card plate is arranged above the metal pulley, and the limiting card plate can play a limiting role on the piston sleeve plate, while the self-locking elastic shaft mechanism realizes the locking effect, and can also help the manhole cover to withstand the pressure from the upper vehicle, and avoid the reaction force from damaging the connection structure of the manhole cover;

[0024] 3. In the present invention, the alignment correction groove can be matched with the locking lifting blocks around the outer side of the manhole cover seat, so that the manhole cover seat can be fixed inside the manhole platform. This combined loading and unloading method is also convenient for the later maintenance of the well body. The interior of the alignment correction groove is provided with a rubber wear-resistant sleeve and a wear-resistant lining. The rubber wear-resistant sleeve is fixed to the interior of the alignment correction groove through a slot between the rubber wear-resistant lining and the wear-resistant lining. In this way, the locking lifting blocks can be prevented from directly making frictional contact with the manhole platform, thereby extending the service life of the manhole platform. The wear-resistant lining is a solid structure, which avoids the risk of settlement at the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall front view of the present invention;

[0026] Figure 2 It is a schematic diagram of the overall decomposition structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the metal patch of the manhole cover of the present invention;

[0028] Figure 4 It is a schematic diagram of the male shaft lock ring buckle structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the manhole cover seat of the present invention;

[0030] Figure 6 It is a schematic diagram of the lock shaft receiving groove structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the distribution structure of the self-locking elastic shaft mechanism of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the self-locking elastic shaft mechanism of the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the manhole platform of the present invention.

[0034] In the figure: 1, metal manhole cover; 2, manhole cover seat; 3, manhole platform seat; 4, built-in gasket; 5, male shaft locking ring buckle; 6, female shaft locking ring buckle; 7, self-locking elastic shaft mechanism; 101, barb lock; 102, manhole cover metal patch; 103, adhesive film; 201, drainage channel; 202, manhole cover assembly groove; 203, surrounding shaft sleeve; 204, locking lifting block; 205, locking lifting hole; 301, anchor screw; 302, inner shaft ring; 303, anchor screw Hole; 304, alignment correction groove; 305, wear-resistant lining; 306, rubber anti-wear sleeve; 401, side-mounted lock groove; 402, lock shaft storage groove; 501, upper locking plate; 502, end plate; 503, arc chamfer; 504, upper sliding groove; 601, lower locking plate; 602, lower sliding groove; 701, seat shaft; 702, constant torsion spring; 703, piston sleeve; 704, metal pulley; 705, limit clamping plate; 706, lifting wheel groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-3An embodiment of the present invention is as follows: a composite material anti-jumping natural inhibition manhole cover, comprising a metal manhole cover 1, a manhole cover seat 2 and a manhole platform seat 3, the manhole cover seat 2 is provided with an internal gasket 4, and a manhole cover assembly groove 202 is provided between the internal gasket 4 and the manhole cover seat 2, the metal manhole cover 1 is connected to the manhole cover seat 2 through the manhole cover assembly groove 202, and the outer surface of the metal manhole cover 1 is provided with a manhole cover metal patch 102, the bottom of the manhole cover metal patch 102 A rubber patch 103 is provided, and the metal patch 102 of the manhole cover is connected to the metal manhole cover 1 through the rubber patch 103. Barb locks 101 are provided on both sides of the surface of the metal manhole cover 1, and the barb locks 101 extend through and extend to the bottom of the metal manhole cover 1. The manhole cover seat 2 is provided above the manhole platform 3, and a drainage channel 201 is provided on the outer surface of the manhole cover seat 2. Anchor screws 301 are provided at the bottom of the manhole platform 3, and there are multiple anchor screws 301;

[0037] The metal patch 102 on the surface of the metal manhole cover 1 can play a role of pressure buffering in cooperation with the adhesive patch 103 at the bottom. When a vehicle passes through the manhole cover surface, the manhole cover metal patch 102 in contact can absorb the pressure with the help of the colloid at the bottom, and the metal material of the manhole cover metal patch 102 itself can play a role of wear resistance.

[0038] Both sides of the bottom of the metal manhole cover 1 are provided with male shaft locking ring buckles 5, and the male shaft locking ring buckle 5 is welded to the metal manhole cover 1, and both sides of the top of the built-in gasket 4 are provided with female shaft locking ring buckles 6, and the female shaft locking ring buckle 6 is welded to the built-in gasket 4;

[0039] The two groups of barb locks 101 on the surface of the manhole cover will be just above the self-locking elastic shaft mechanism 7 in the outer area of ​​the end plate 502 after the manhole cover and the manhole cover sleeve 2 are fully assembled. Use metal hooks to hook the barb locks 101 on both sides of the metal manhole cover 1 and put it into the manhole cover assembly groove 202 provided between the built-in gasket 4 and the manhole cover sleeve 2. When inserting it, the bottom male shaft locking ring buckle 5 needs to be put into the empty area between the female shaft locking ring buckle 6 below, and then the metal manhole cover 1 is rotated clockwise to engage the male shaft locking ring buckle 5 with the female shaft locking ring buckle 6, and counterclockwise rotation is for disengagement.

[0040] See also Figure 4, the male shaft locking ring buckle 5 includes an upper locking plate 501, and an upper sliding groove 504 is provided between the upper locking plate 501 and the metal manhole cover 1, an end plate 502 is provided at one end of the upper sliding groove 504, and the end plate 502 and the upper locking plate 501 are set as an integrated structure, the female shaft locking ring buckle 6 includes a lower locking plate 601, and a lower sliding groove 602 is provided between the lower locking plate 601 and the built-in gasket 4, and arc chamfers 503 are provided at both ends of the upper locking plate 501, the upper locking plate 501 is slidably connected to the female shaft locking ring buckle 6 through the lower sliding groove 602, and the lower locking plate 601 is slidably connected to the male shaft locking ring buckle 5 through the upper sliding groove 504, the thickness of the upper locking plate 501 and the lower locking plate 601 is set to 5mm, the height of the upper sliding groove 504 is set to 5mm, and the height of the lower sliding groove 602 is set to 7.5mm;

[0041] The locking operation of the manhole cover can be completed by rotating the male shaft locking ring buckle 5 and the female shaft locking ring buckle 6, so that when a vehicle passes over the manhole cover, the manhole cover will not bounce upward due to the influence of the reaction force;

[0042] The arc chamfers 503 at both ends of the bottom of the upper locking plate 501 are to facilitate better pressing between the upper locking plate 501 and the metal pulley 704 during the rotation process;

[0043] The lower sliding groove 602 is higher than the upper sliding groove 504 in order to reserve a required height for the metal pulley 704 .

[0044] See also Figure 5-8 A surrounding sleeve 203 is arranged below the manhole cover sleeve 2, and the surrounding sleeve 203 and the manhole cover sleeve 2 are arranged as an integrated structure, and locking lifting blocks 204 are arranged around the outer surface of the surrounding sleeve 203, and the locking lifting blocks 204 are fixedly connected to the surrounding sleeve 203, and the outer surface of the locking lifting block 204 is provided with a locking lifting hole 205, and the outer surface of the built-in gasket 4 is provided with a side-mounted locking groove 401, and the interior of the built-in gasket 4 is provided with a locking shaft receiving groove 402, and there are eight locking shaft receiving grooves 402, and the interior of the locking shaft receiving groove 402 is provided with a self-locking elastic shaft mechanism 7, and the self-locking elastic shaft mechanism 7 includes a seat shaft 701, a constant torsion spring 702 and a piston sleeve plate 70 3. The constant torsion spring 702 is arranged between the stop seat shaft 701 and the piston sleeve plate 703, and there are two constant torsion springs 702. The stop seat shaft 701 is connected to the built-in gasket 4 by screws, and the piston sleeve plate 703 is slidably connected to the lock shaft receiving groove 402. A metal pulley 704 is arranged on the inner side of the top of the piston sleeve plate 703, and the metal pulley 704 is rotatably connected to the piston sleeve plate 703. A limiting clamping plate 705 is arranged above the metal pulley 704, and the limiting clamping plate 705 is connected to the built-in gasket 4 by a clamping groove. A lifting wheel groove 706 is arranged on the outer surface of the limiting clamping plate 705, and the metal pulley 704 is connected to the limiting clamping plate 705 through the lifting wheel groove 706;

[0045] The locking cam 705 is a kind of spring loaded mechanism which is used to lock the piston and the piston shaft. The spring loaded mechanism 706 is a kind of spring loaded mechanism which is used to lock the piston and the piston shaft. The spring loaded mechanism 707 is a kind of spring loaded mechanism which is used to lock the piston and the piston shaft.

[0046] When the metal pulley 704 is subjected to pressure from the male shaft locking ring buckle 5, the piston sleeve 703 will shrink downward. During the rotation of the manhole cover, the metal pulley 704 on the top can assist the male shaft locking ring buckle 5 to rotate, thereby reducing the friction resistance of the manhole cover and facilitating the rotation combination. When the end plate 502 of the male shaft locking ring buckle 5 is in contact with the female shaft locking ring buckle 6, it means that the locking is completed. At this time, the self-locking elastic shaft mechanism 7 located in the outer area of ​​the end plate 502 will use the internal spring to push the pulley out a short distance after losing the pressure from the manhole cover. The pulley height in the compressed state is 1-1.5mm, and the pulley height in the pressure-free state is 3-3.5mmm. This locking structure can not only prevent the manhole cover from being deflected, but also play an anti-theft role. The novel locking structure can prevent the manhole cover from being stolen except by the staff.

[0047] See also Fig. 9 , alignment correction grooves 304 are arranged around the inner side of the manhole platform 3, and a wear-resistant lining 305 is arranged at the bottom of the alignment correction groove 304, a rubber wear-resistant sleeve 306 is arranged inside the alignment correction groove 304, and the rubber wear-resistant sleeve 306 is fitted and connected with the alignment correction groove 304, the locking lifting block 204 is connected with the manhole platform 3 through the alignment correction groove 304, and the locking lifting block 204 is fitted and connected with the rubber wear-resistant sleeve 306 and the wear-resistant lining 305, an inner expansion shaft ring 302 is arranged on the inner side of the bottom of the manhole platform 3, and the inner expansion shaft ring 302 and the manhole platform 3 are set as an integrated structure, the outer surface of the inner expansion shaft ring 302 is arranged with an anchoring screw hole 303, and the anchoring screw 301 is connected with the inner expansion shaft ring 302 through the anchoring screw hole 303, and the built-in gasket 4 is fitted and connected with the inner expansion shaft ring 302;

[0048] The alignment correction groove 304 can be matched with the locking lifting blocks 204 around the outer side of the manhole cover sleeve 2, so that the manhole cover sleeve 2 can be fixed inside the manhole platform 3. This combined loading and unloading method is also convenient for the later maintenance of the well body. The alignment correction groove 304 is provided with a rubber wear-resistant sleeve 306 and a wear-resistant lining plate 305. The rubber wear-resistant sleeve 306 is fixed to the alignment correction groove 304 through a slot between the rubber wear-resistant sleeve 306 and the wear-resistant lining plate 305. This can avoid the locking lifting block 204 from directly contacting the manhole platform 3 with friction, thereby extending the service life of the manhole platform 3. The wear-resistant lining plate 305 is a solid structure to avoid the risk of settlement at the connection.

[0049] The inwardly extending shaft ring 302 can be connected and fixed with the manhole pipe structure, and can also play a supporting role for the internal gasket ring 4 structure.

[0050] A method for using a composite material anti-tripping natural suppression manhole cover comprises the following steps:

[0051] Step 1: First, dock the manhole base 3 with the preset vertical manhole pipe on the road surface. The manhole base 3 is generally a prefabricated concrete structure, and the inner expansion shaft ring 302 at the bottom is a metal structure. After the inner expansion shaft ring 302 is docked with the manhole pipe, the anchor screw 301 is passed through the anchor screw hole 303 to anchor it to the pipe structure, and the interface needs to be treated for anti-seepage;

[0052] Step 2: Combine the built-in gasket 4 with the manhole cover seat 2, and lock the built-in gasket 4 through the lock hole structure on the surface of the locking lifting block 204 to prevent it from rotating and deviating inside the manhole cover seat 2, and then place the built-in gasket 4 together with the manhole cover seat 2 on the top of the manhole platform 3. During the placement process, the locking lifting block 204 needs to be aligned with the alignment correction groove 304;

[0053] Step 3: Use the locking lifting block 204 to engage with the alignment correction groove 304 to complete the connection and fixation between the manhole cover seat 2 and the manhole platform seat 3. The placed manhole cover seat 2 is flush with the road surface or slightly lower than the road surface by 2-3mm. Finally, use a metal hook to hook the barb lock 101 on both sides of the metal manhole cover 1 and put it into the manhole cover assembly groove 202 provided between the built-in gasket 4 and the manhole cover seat 2;

[0054] Step 4: When inserting, the male shaft locking ring buckle 5 at the bottom needs to be placed into the empty space between the female shaft locking ring buckle 6 below, and then the metal manhole cover 1 is rotated clockwise to make the male shaft locking ring buckle 5 engage with the female shaft locking ring buckle 6. During the rotation process, the metal pulley 704 above the self-locking elastic shaft mechanism 7 inside the built-in gasket 4 can assist the male shaft locking ring buckle 5 to rotate;

[0055] Step 5: When the end plate 502 of the male shaft lock ring buckle 5 fits with the female shaft lock ring buckle 6, it means that the locking is completed. At this time, the self-locking elastic shaft mechanism 7 located in the outer area of ​​the end plate 502 will push the pulley out a short distance with the help of the internal spring after losing the pressure from the manhole cover. The height of the pulley in the compressed state is 1-1.5mm, and the height of the pulley in the pressure-free state is 3-3.5mm;

[0056] Step 6: After the pulley is raised, the metal manhole cover 1 cannot separate from the manhole cover sleeve 2 by itself. When separation is required, the barb must be inserted from the barb lock first, and the barb structure is used to press the pulley in the outer area of ​​the end plate 502. Then, the manhole cover is dragged counterclockwise to separate the male shaft lock ring buckle 5 and the female shaft lock ring buckle 6.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite material anti-jumping natural suppression manhole cover, comprising a metal manhole cover (1), a manhole cover seat (2) and a manhole platform seat (3), characterized in that: The manhole cover seat (2) is provided with an internal gasket (4), and a manhole cover assembly groove (202) is provided between the internal gasket (4) and the manhole cover seat (2); the metal manhole cover (1) is connected to the manhole cover seat (2) via the manhole cover assembly groove (202), and a manhole cover metal patch (102) is provided on the outer surface of the metal manhole cover (1), and a rubber patch (103) is provided at the bottom of the manhole cover metal patch (102), and the manhole cover metal patch (102) is connected to the manhole cover seat (2) via the rubber patch (103) is fitted and connected with the metal manhole cover (1), both sides of the surface of the metal manhole cover (1) are provided with barb locks (101), and the barb locks (101) extend through and extend to the bottom of the metal manhole cover (1), the manhole cover seat (2) is arranged above the manhole platform seat (3), and the outer surface of the manhole cover seat (2) is provided with a drainage channel (201), and the bottom of the manhole platform seat (3) is provided with an anchor screw (301), and there are a plurality of anchor screws (301); Both sides of the bottom of the metal manhole cover (1) are provided with male shaft locking ring buckles (5), and the male shaft locking ring buckle (5) is welded to the metal manhole cover (1), and both sides of the top of the built-in gasket (4) are provided with female shaft locking ring buckles (6), and the female shaft locking ring buckle (6) is welded to the built-in gasket (4); The male shaft locking ring buckle (5) comprises an upper locking plate (501), and an upper sliding groove (504) is provided between the upper locking plate (501) and the metal manhole cover (1), an end plate (502) is provided at one end of the upper sliding groove (504), and the end plate (502) and the upper locking plate (501) are provided as an integrated structure, the female shaft locking ring buckle (6) comprises a lower locking plate (601), and a lower sliding groove (602) is provided between the lower locking plate (601) and the built-in gasket (4), and both ends of the upper locking plate (501) are provided with arc chamfers (503); The upper locking plate (501) is slidably connected to the female shaft locking ring buckle (6) via the lower sliding groove (602), and the lower locking plate (601) is slidably connected to the male shaft locking ring buckle (5) via the upper sliding groove (504), the thickness of the upper locking plate (501) and the lower locking plate (601) is set to 5 mm, the height of the upper sliding groove (504) is set to 5 mm, and the height of the lower sliding groove (602) is set to 7.5 mm; The internal part of the built-in gasket (4) is provided with a lock shaft receiving groove (402), and there are eight lock shaft receiving grooves (402); the internal part of the lock shaft receiving groove (402) is provided with a self-locking elastic shaft mechanism (7), and the self-locking elastic shaft mechanism (7) comprises a stop seat shaft (701), a constant torsion spring (702) and a piston sleeve plate (703); the constant torsion spring (702) is arranged between the stop seat shaft (701) and the piston sleeve plate (703), and there are two constant torsion springs (702); the stop seat shaft (701) is connected to the internal gasket (4) by screws, and the piston sleeve plate (703) is slidably connected to the lock shaft receiving groove (402); A metal pulley (704) is arranged on the inner side of the top of the piston sleeve (703), and the metal pulley (704) is rotatably connected to the piston sleeve (703); a limit clamping plate (705) is arranged above the metal pulley (704), and the limit clamping plate (705) is connected to the built-in gasket (4) via a clamping groove; a lifting wheel groove (706) is arranged on the outer surface of the limit clamping plate (705), and the metal pulley (704) is connected to the limit clamping plate (705) via the lifting wheel groove (706).

2. The composite material anti-tripping natural suppression manhole cover according to claim 1 is characterized in that: A surrounding sleeve (203) is provided below the manhole cover seat (2), and the surrounding sleeve (203) and the manhole cover seat (2) are arranged as an integrated structure, locking lifting blocks (204) are arranged around the outer surface of the surrounding sleeve (203), and the locking lifting blocks (204) are fixedly connected to the surrounding sleeve (203), the outer surface of the locking lifting block (204) is provided with a locking lifting hole (205), and the outer surface of the built-in gasket (4) is provided with a side-mounted locking groove (401).

3. The composite material anti-tripping natural suppression manhole cover according to claim 2 is characterized in that: The inner side of the manhole platform (3) is provided with alignment correction grooves (304) all around, and the bottom of the alignment correction groove (304) is provided with a wear-resistant lining (305), the alignment correction groove (304) is provided with a rubber wear-resistant sleeve (306), and the rubber wear-resistant sleeve (306) is fitted and connected to the alignment correction groove (304), the locking lifting block (204) is connected to the manhole platform (3) through the alignment correction groove (304), and the locking lifting block (204) is fitted and connected to the rubber wear-resistant sleeve (306) and the wear-resistant lining (305).

4. The composite material anti-tripping natural suppression manhole cover according to claim 3 is characterized in that: An inner expansion shaft ring (302) is arranged on the inner side of the bottom of the manhole platform (3), and the inner expansion shaft ring (302) and the manhole platform (3) are arranged as an integrated structure, an outer surface of the inner expansion shaft ring (302) is arranged with an anchoring screw hole (303), and the anchoring screw (301) is connected to the inner expansion shaft ring (302) through the anchoring screw hole (303), and the built-in gasket (4) is fitted and connected to the inner expansion shaft ring (302).

5. A method for using a composite material anti-tripping natural suppression manhole cover, which is implemented based on the composite material anti-tripping natural suppression manhole cover according to claim 4, wherein: The steps include: Step 1: firstly, the manhole base (3) is connected to the preset vertical manhole pipe on the road surface. The manhole base (3) is generally a prefabricated concrete structure, and the inner expansion shaft ring (302) at the bottom is a metal structure. After the inner expansion shaft ring (302) is connected to the manhole pipe, the anchor screw (301) is passed through the anchor screw hole (303) to anchor it to the pipe structure, and the interface needs to be treated for anti-seepage; Step 2: Combine the built-in gasket (4) with the manhole cover seat (2), and lock the built-in gasket (4) through the locking hole structure on the surface of the locking lifting block (204) to prevent it from rotating and deviating inside the manhole cover seat (2), and then place the built-in gasket (4) together with the manhole cover seat (2) on the top of the manhole platform (3). During the placement process, the locking lifting block (204) needs to be aligned with the alignment correction groove (304); Step 3: Use the locking lifting block (204) and the alignment correction groove (304) to engage with each other to complete the connection and fixation between the manhole cover seat (2) and the manhole platform seat (3). The placed manhole cover seat (2) is flush with the road surface or slightly lower than the road surface by 2-3 mm. Finally, use a metal hook to hook the barb lock (101) on both sides of the metal manhole cover (1) and place it into the manhole cover assembly groove (202) provided between the built-in gasket (4) and the manhole cover seat (2); Step 4: When inserting, the male shaft locking ring buckle (5) at the bottom needs to be placed into the empty space between the female shaft locking ring buckle (6) below, and then the metal manhole cover (1) is rotated clockwise to make the male shaft locking ring buckle (5) engage with the female shaft locking ring buckle (6). During the rotation process, the metal pulley (704) above the self-locking elastic shaft mechanism (7) inside the built-in gasket (4) can assist the male shaft locking ring buckle (5) to rotate; Step 5: When the end plate (502) of the male shaft locking ring buckle (5) fits with the female shaft locking ring buckle (6), the locking is completed. At this time, the self-locking elastic shaft mechanism (7) located in the outer area of ​​the end plate (502) will push the pulley out a short distance with the help of the internal spring after the pressure from the manhole cover is lost. The height of the pulley in the compressed state is 1-1.5mm, and the height of the pulley in the pressure-free state is 3-3.5mm; Step 6: After the pulley is raised, the metal manhole cover (1) cannot be separated from the manhole cover seat (2) by itself. When separation is required, the barb needs to be inserted from the barb lock first, and the pulley in the outer area of ​​the end plate (502) is pressed by the barb structure. Then, the manhole cover is dragged counterclockwise to separate the male shaft lock ring buckle (5) and the female shaft lock ring buckle (6).

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