A special manhole cover for sloped terrain and its assembly method

Abstract

The present invention discloses a special manhole cover for terrain with a slope and an assembly method thereof, which belongs to the technical field of manhole covers, and comprises a manhole cover and a manhole ring, wherein a notch is provided on the inner side of the manhole ring, a protruding flaring ring is fixed on the bottom end of the manhole ring, the manhole ring and the flaring ring are fixed by reinforcing ribs, a slope adjustment component is installed on the bottom surface of the flaring ring, and the flaring ring is connected to the manhole seat through the slope adjustment. The special manhole cover for terrain with a slope proposed by the present invention and an assembly method thereof, first detects the slope angle of the terrain, and then changes the angle of the manhole cover by rotating the adjustment shaft, so that the manhole seat is in a horizontal position, and the manhole cover can be in an inclined position, so as to avoid leveling a flat ground on the slope before installation.

Description

Technical Field

[0001] The invention relates to the technical field of manhole covers, and in particular to a special manhole cover for sloped terrain and an assembling 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 alleys, etc.

[0003] CN201821536461.0 A slope-adjustable combined weighing platform foundation pit manhole cover, which changes the height of the vertical edge at intervals along the original foundation pit slope, adapts to the slope changes before and after the weighing platform, seals the maintenance wells on both sides of the weighing platform, and prolongs the service life of the weighing platform and the weighing sensor under the weighing platform;

[0004] The above description does not provide a manhole cover that is specially designed for use on a sloping terrain and can be adjusted along the slope angle. Summary of the invention

[0005] The object of the present invention is to provide a special manhole cover with a slope and an assembly method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: a special manhole cover with a slope, comprising a manhole cover and a manhole ring, a notch is opened inside the manhole ring, a protruding expansion ring is fixed on the bottom end of the manhole ring, the manhole ring and the expansion ring are fixed by reinforcing ribs, a slope adjustment component is installed on the bottom surface of the expansion ring, and the expansion ring is connected to the manhole seat through slope adjustment;

[0007] A pin shaft is inserted through the notch of the well ring, and a pin seat fixed on the edge of the outer ring of the well cover is penetrated by the pin shaft.

[0008] Furthermore, the slope adjustment assembly includes a lead screw, a sleeve, a pin seat, a support assembly, a coupling, an adjustment shaft, a collar and a limit shaft, the support assembly is fixed to the inner wall of the well seat, the sleeve and the coupling are connected by a coupling, and the top end of the support assembly is sleeved on the coupling;

[0009] The collar is fixed on the bottom surface of the flaring ring, the well seat is located below the collar and is processed with a strip groove, the limiting shaft is placed in the strip groove and fixed, and the collar is penetrated by the limiting shaft;

[0010] The other end of the adjusting shaft passes through the well seat horizontally, one end of the screw is engaged with the sleeve, the pin connected to the other end of the screw is inserted into the pin seat for active connection, the adjusting shaft rotates synchronously with the sleeve through the coupling, and the position between the sleeve and the screw is adjusted to drive the flaring to rotate around the limit shaft to adapt to the slope.

[0011] Further, a crossbeam is mounted on the expansion ring, the crossbeam is arranged along the diameter of the expansion ring, and the crossbeam is located directly above the lead screw and the sleeve;

[0012] The pin shaft seat is fixed at the center of the crossbeam, the expansion ring is located in a horizontal position, the lead screw is retracted into the sleeve and is located in a horizontal position, the lead screw extends out of the sleeve, and the expansion ring is tilted.

[0013] Furthermore, the support assembly includes a support ring, a support rod and a support plate. The support plate is fixed to the inner wall of the well seat by welding. One end of the support rod is vertically fixed to the support plate. The support ring is fixed to the other end of the support rod. The support ring is sleeved on the coupling.

[0014] Furthermore, the coupling comprises a center frame, a first coupling end, a second coupling end, and a limiting outer ring, the first coupling end and the second coupling end are movably connected via the center frame, and the limiting outer ring is fixed on the outer wall of the second coupling end;

[0015] The ports of the first coupling end and the second coupling end are fixed to the sleeve and the adjusting shaft respectively, and the limiting outer ring is inserted into the ring groove of the inner ring of the supporting ring.

[0016] Furthermore, the well seat is laid at the wellhead of the sloped sewer, the well cover and the sloped terrain have the same inclination, and the top surface of the well cover is flush with the sloped terrain.

[0017] Furthermore, the center frame is a cross structure, and screw holes are provided on the ports of the center frame, and the bolts passing through the first coupling end and the second coupling end are screwed into the screw holes for fixing.

[0018] The present invention provides a method for assembling a special manhole cover for a sloped terrain, comprising the following steps:

[0019] S1: The manhole cover and the manhole ring are connected by inserting a pin shaft into the pin seat, and the sleeve ring at one end of the bottom of the expansion ring is sleeved on the limit shaft to complete the movable connection between the expansion ring and the manhole seat;

[0020] S2: The limiting outer ring of the second coupling end is inserted into the supporting ring, the second coupling end is fixed to the adjusting shaft by bolts, and the adjusting shaft passes through the well seat;

[0021] S3: The lead screw is screwed into the sleeve, the other end of the lead screw is exposed, and the lead screw end is inserted into the pin seat and penetrated by the pin;

[0022] S4: The sleeve and the first coupling end are fixed by bolts to complete the assembly.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention proposes a special manhole cover for sloped terrain and an assembly method thereof, wherein the other end of the adjusting shaft passes through the manhole seat horizontally, one end of the lead screw meshes with the sleeve, the pin connected to the other end of the lead screw is inserted into the pin seat for active connection, the adjusting shaft rotates synchronously with the sleeve through a coupling, the position between the sleeve and the lead screw is adjusted, and the expansion mouth is used to rotate around the limit shaft to adapt to the slope, and the slope angle of the terrain is detected first, and then the angle of the manhole cover is changed by rotating the adjusting shaft, so that the manhole seat is in a horizontal position, and the manhole cover can be in an inclined position, and the manhole seat is laid at the wellhead of the sloped sewer, the inclination of the manhole cover and the sloped terrain is the same, and the top surface of the manhole cover is flush with the sloped terrain, so that on the sloped terrain, the manhole cover is also in an inclined state, avoiding leveling a flat ground on the slope before installation. The sleeve is also driven to rotate by the coupling, and during the rotation of the sleeve, the lead screw slowly expands and contracts along the sleeve, thereby achieving the purpose of adjusting the angle of the manhole cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall axonometric diagram of the present invention;

[0026] Figure 2 An exploded view of the present invention;

[0027] Figure 3 is a non-inclined cross-sectional view of the present invention;

[0028] Figure 4 is an oblique cross-sectional view of the present invention;

[0029] Figure 5 It is a side sectional view of the first coupling end of the present invention;

[0030] Figure 6 For the present invention Figure 4 A magnified image of point A;

[0031] Figure 7 This is a structural diagram of Embodiment 2 of the present invention;

[0032] Figure 8 This is a cylinder structure diagram of Embodiment 2 of the present invention;

[0033] Fig. 9 This is a structural diagram of Embodiment 3 of the present invention;

[0034] Fig.10 This is a diagram of the motor and lead screw structure of the third embodiment of the present invention;

[0035] Fig.11 This is a structural diagram of embodiment 4 of the present invention.

[0036] In the figure: 1. manhole cover; 2. manhole ring; 21. notch; 22. expansion ring; 221. crossbeam; 3. slope adjustment assembly; 31. screw; 32. sleeve; 33. pin seat; 34. support assembly; 341. support ring; 342. support rod; 343. support plate; 35. coupling; 351. center frame; 352. first coupling end; 353. second coupling end; 354. limiting outer ring; 36. adjusting shaft; 37. sleeve; 38. limiting shaft; 4. manhole seat; 41. strip groove. DETAILED DESCRIPTION

[0037] 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.

[0038] Embodiment 1:

[0039] See also Figure 1 A special manhole cover for terrain with a slope, comprising a manhole cover 1 and a manhole ring 2, a notch 21 is opened inside the manhole ring 2, wherein the size of the notch 21 is set according to the demand, a protruding expansion ring 22 is fixed on the bottom end of the manhole ring 2, the width of the expansion ring 22 is not less than 6cm, and the thickness of the expansion ring 22 is not less than 2cm, by increasing the thickness and width of the expansion ring 22, the subsequent support provides a strong guarantee, the manhole ring 2 and the expansion ring 22 are fixed by reinforcing ribs, and the strength is guaranteed by the provided reinforcing ribs, a slope adjustment component 3 is installed on the bottom surface of the expansion ring 22, and the expansion ring 22 is connected to the manhole seat 4 through the slope adjustment component 3;

[0040] A pin is inserted through the notch 21 of the manhole ring 2, and a pin seat fixed on the outer edge of the manhole cover 1 is penetrated by the pin. In this embodiment, the manhole cover 1 rotates around the pin seat by the arranged pin, thereby realizing the function of opening or closing between the manhole cover 1 and the manhole ring 2.

[0041] See also Figure 2-6 The slope adjustment assembly 3 includes a lead screw 31, a sleeve 32, a pin seat 33, a support assembly 34, a coupling 35, an adjusting shaft 36, a collar 37 and a limiting shaft 38. The support assembly 34 is fixed to the inner wall of the well seat 4. The sleeve 32 and the coupling 35 are connected by the coupling 35. The top end of the support assembly 34 is sleeved on the coupling 35. In this embodiment, the coupling 35 is supported by the support assembly 34, so that the coupling 35 is always limited when rotating, so that the overall lifting can remain stable;

[0042] The collar 37 is fixed on the bottom surface of the expansion ring 22. The well seat 4 is located below the collar 37 and is processed with a strip groove 41. The limiting shaft 38 is placed in the strip groove 41 and fixed. The collar 37 is penetrated by the limiting shaft 38. Through the arrangement of the collar 37 and the limiting shaft 38, the expansion ring 22 can rotate around the well seat 4.

[0043] The other end of the adjusting shaft 36 horizontally passes through the well seat 4, one end of the screw 31 meshes with the sleeve 32, and the pin connected to the other end of the screw 31 is inserted into the pin seat 33 for active connection. The adjusting shaft 36 rotates synchronously with the sleeve 32 through the coupling 35, and the position between the sleeve 32 and the screw 31 is adjusted to drive the expansion ring 22 to rotate around the limit shaft 38 to adapt to the slope. After first detecting the slope angle of the terrain, the angle of the manhole cover 1 is changed by rotating the adjusting shaft 36, so that the well seat 4 is in a horizontal position, while the manhole cover 1 is in an inclined position, and the well seat 4 is laid at the wellhead of the sloped sewer, the inclination of the manhole cover 1 and the sloped terrain are the same, and the top surface of the manhole cover 1 is flush with the sloped terrain, so that on the sloped terrain, the manhole cover 1 is also in an inclined state, avoiding leveling a flat ground on the slope before installation.

[0044] A crossbeam 221 is mounted on the expansion ring 22 , and the crossbeam 221 is arranged along the diameter of the expansion ring 22 , and the crossbeam 221 is located directly above the lead screw 31 and the sleeve 32 ;

[0045] The pin seat 33 is fixed at the center of the crossbeam 221, the flared ring 22 is in a horizontal position, the lead screw 31 is retracted into the sleeve 32 and in a horizontal position, the lead screw 31 extends out of the sleeve 32, and the flared ring 22 is tilted. The crossbeam 221 is set to make the flared ring 22 more solid as a whole and also provide an installation position for the pin seat 33.

[0046] The support assembly 34 includes a support ring 341, a support rod 342 and a support plate 343. The support plate 343 is fixed to the inner wall of the well seat 4 by welding. One end of the support rod 342 is vertically fixed to the support plate 343. The support ring 341 is fixed to the other end of the support rod 342. The support ring 341 is sleeved on the coupling 35.

[0047] The coupling 35 includes a center frame 351, a first coupling end 352, a second coupling end 353, and a limiting outer ring 354. The first coupling end 352 and the second coupling end 353 are movably connected through the center frame 351, and the limiting outer ring 354 is fixed on the outer wall of the second coupling end 353.

[0048] The ports of the first coupling end 352 and the second coupling end 353 are fixed to the sleeve 32 and the adjusting shaft 36 respectively, and the limiting outer ring 354 is inserted into the annular groove of the inner ring of the supporting ring 341 .

[0049] The center frame 351 is a cross structure, and screw holes are provided on the ends of the center frame 351. Bolts passing through the first coupling end 352 and the second coupling end 353 are screwed into the screw holes for fixing.

[0050] The first coupling end 352 and the second coupling end 353 are arranged with the center frame 351 during rotation, and the first coupling end 352 can also rotate around the center frame 351 while rotating, so that the sleeve 32 and the adjusting shaft 36 can rotate synchronously even if they are not on the same axis, and the rotation angles of the two will also change accordingly.

[0051] In this embodiment, the adjusting shaft 36 rotates, and the coupling 35 drives the sleeve 32 to rotate. During the rotation of the sleeve 32, the lead screw 31 slowly extends and retracts along the sleeve 32, thereby achieving the purpose of adjusting the angle of the manhole cover 1.

[0052] Based on the above-mentioned special manhole cover for terrain with a slope, the present embodiment proposes an assembly method of a special manhole cover for terrain with a slope, in order to better demonstrate the assembly process of the special manhole cover for terrain with a slope, which includes the following steps:

[0053] Step 1: The manhole cover 1 and the manhole ring 2 are connected by inserting a pin shaft into the pin seat, and the ring 37 at one end of the bottom of the expansion ring 22 is sleeved on the limit shaft 38 to complete the movable connection between the expansion ring 22 and the manhole seat 4;

[0054] Step 2: The limiting outer ring 354 of the second coupling end 353 is inserted into the supporting ring 341 , and the second coupling end 353 is fixed to the adjusting shaft 36 by bolts, and the adjusting shaft 36 passes through the well seat 4 ;

[0055] Step 3: The lead screw 31 is screwed into the sleeve 32, the other end of the lead screw 31 is exposed, and the end of the lead screw 31 is inserted into the pin seat 33 and penetrated by the pin;

[0056] Step 4: The sleeve 32 and the first coupling end 352 are fixed by bolts to complete the assembly.

[0057] Embodiment 2:

[0058] See also Figure 7-8 A special manhole cover for terrain with a slope, comprising a manhole cover 1 and a manhole ring 2, a notch 21 is opened inside the manhole ring 2, wherein the size of the notch 21 is set according to the demand, a protruding expansion ring 22 is fixed on the bottom end of the manhole ring 2, the width of the expansion ring 22 is not less than 6cm, and the thickness of the expansion ring 22 is not less than 2cm, by increasing the thickness and width of the expansion ring 22, the subsequent support provides a strong guarantee, the manhole ring 2 and the expansion ring 22 are fixed by reinforcing ribs, and the strength is guaranteed by the provided reinforcing ribs, a slope adjustment component 3 is installed on the bottom surface of the expansion ring 22, and the expansion ring 22 is connected to the manhole seat 4 through the slope adjustment component 3;

[0059] A pin is inserted through the notch 21 of the manhole ring 2, and a pin seat fixed on the outer edge of the manhole cover 1 is penetrated by the pin. In this embodiment, the manhole cover 1 rotates around the pin seat by the arranged pin, thereby realizing the function of opening or closing between the manhole cover 1 and the manhole ring 2.

[0060] The present embodiment is different from the first embodiment in the slope adjustment component 3 and the crossbeam 221, wherein the slope adjustment component 3 of the present embodiment includes four groups of cylinders, each group of cylinders is connected to a retractable cylinder rod, wherein one end of the cylinder is fixed on the well seat 4, and a pin protruding from the port of the cylinder rod is movably connected to a pin seat 33 on the bottom surface of the expansion ring 22, and the four groups of cylinders are uniformly controlled by an external air pump, which fills or extracts gas into or from the corresponding cylinders through the provided air pump, thereby adjusting the angle of the expansion ring 22, so that the manhole cover 1 can be assembled on the slope with its surface flush with the slope, so that it can adapt to the slope.

[0061] Based on the above-mentioned special manhole cover for terrain with a slope, the present embodiment proposes an assembly method of a special manhole cover for terrain with a slope, in order to better demonstrate the assembly process of the special manhole cover for terrain with a slope, which includes the following steps:

[0062] Step 1: The manhole cover 1 and the manhole ring 2 are connected by inserting a pin shaft into a pin seat;

[0063] Step 2: One end of the four cylinders is fixed to the well seat 4, and the pin protruding from the end of the cylinder rod is inserted into the pin seat 33 of the expansion ring 22;

[0064] Step 3: The pipes connecting the four groups of cylinders pass through the ground and are connected to the air pump, wherein the working status of the four groups of cylinders is debugged through the controller connected to the air pump, thereby completing the assembly.

[0065] Embodiment three:

[0066] See also Figure 9-10 A special manhole cover for terrain with a slope, comprising a manhole cover 1 and a manhole ring 2, a notch 21 is opened inside the manhole ring 2, wherein the size of the notch 21 is set according to the demand, a protruding expansion ring 22 is fixed on the bottom end of the manhole ring 2, the manhole ring 2 and the expansion ring 22 are fixed by reinforcing ribs, and the strength is guaranteed by the provided reinforcing ribs, a slope adjustment component 3 is installed on the bottom surface of the expansion ring 22, and the expansion ring 22 is connected to the manhole seat 4 through the slope adjustment component 3;

[0067] A pin is inserted through the notch 21 of the manhole ring 2, and a pin seat fixed on the outer edge of the manhole cover 1 is penetrated by the pin. In this embodiment, the manhole cover 1 rotates around the pin seat by the arranged pin, thereby realizing the function of opening or closing between the manhole cover 1 and the manhole ring 2.

[0068] The present embodiment is different from the first embodiment in the slope adjustment component 3 and the crossbeam 221, wherein the slope adjustment component 3 of the present embodiment includes four groups of screws, motors and screw sleeves, one end of each group of screws is connected to the motor, and the other end is engaged with the screw sleeve, the motor is fixed on the well seat 4, the pin shaft protruding from the port of the screw sleeve is movably connected to the pin shaft seat 33 on the bottom surface of the expansion ring 22, the four groups of motors are uniformly controlled by an external controller, and the motor is driven to work by the set controller, so that the motor drives the screw to rotate, adjusts the position of the corresponding screw sleeve, realizes the angle of the expansion ring 22, and allows the manhole cover 1 to be assembled on the slope with its surface flush with the slope, so that it can adapt to the slope.

[0069] Based on the above-mentioned special manhole cover for terrain with a slope, the present embodiment proposes an assembly method of a special manhole cover for terrain with a slope, in order to better demonstrate the assembly process of the special manhole cover for terrain with a slope, which includes the following steps:

[0070] Step 1: The manhole cover 1 and the manhole ring 2 are connected by inserting a pin shaft into a pin seat;

[0071] Step 2: One end of the four cylinders is fixed to the well seat 4, and the pin protruding from the end of the cylinder rod is inserted into the pin seat 33 of the expansion ring 22;

[0072] Step 3: The wires connecting the four motors are passed through the ground and connected to the controller, wherein the working status of the four motors is debugged through the controller to complete the assembly.

[0073] Embodiment 4:

[0074] See also Fig.11 A special manhole cover with a slope, comprising a manhole cover 1 and a manhole ring 2, a notch 21 is provided inside the manhole ring 2, a slope adjustment component 3 is installed on the bottom surface of a flared ring 22, and the flared ring 22 is connected to a manhole seat 4 through the slope adjustment component 3;

[0075] A pin is inserted through the notch 21 of the manhole ring 2, and a pin seat fixed on the outer edge of the manhole cover 1 is penetrated by the pin. In this embodiment, the manhole cover 1 rotates around the pin seat by the arranged pin, thereby realizing the function of opening or closing between the manhole cover 1 and the manhole ring 2.

[0076] The present embodiment is different from the first embodiment in that an auxiliary supporting component is added to the slope adjustment assembly 3 to increase the supporting force of the manhole cover 1 when it is tilted.

[0077] The slope adjustment assembly 3 includes a lead screw 31, a sleeve 32, a pin seat 33, a support assembly 34, a coupling 35, an adjusting shaft 36, a collar 37 and a limiting shaft 38. The support assembly 34 is fixed to the inner wall of the well seat 4. The sleeve 32 and the coupling 35 are connected by the coupling 35. The top end of the support assembly 34 is sleeved on the coupling 35. In this embodiment, the coupling 35 is supported by the support assembly 34, so that the coupling 35 is always limited when rotating, so that the overall lifting can be kept stable;

[0078] The collar 37 is fixed on the bottom surface of the expansion ring 22. The well seat 4 is located below the collar 37 and is processed with a strip groove 41. The limiting shaft 38 is placed in the strip groove 41 and fixed. The collar 37 is penetrated by the limiting shaft 38. Through the arrangement of the collar 37 and the limiting shaft 38, the expansion ring 22 can rotate around the well seat 4.

[0079] The other end of the adjusting shaft 36 horizontally passes through the well seat 4, one end of the screw 31 meshes with the sleeve 32, and the pin connected to the other end of the screw 31 is inserted into the pin seat 33 for active connection. The adjusting shaft 36 rotates synchronously with the sleeve 32 through the coupling 35, and the position between the sleeve 32 and the screw 31 is adjusted to drive the expansion ring 22 to rotate around the limit shaft 38 to adapt to the slope. After first detecting the slope angle of the terrain, the angle of the manhole cover 1 is changed by rotating the adjusting shaft 36, so that the well seat 4 is in a horizontal position, while the manhole cover 1 is in an inclined position, and the well seat 4 is laid at the wellhead of the sloped sewer, the inclination of the manhole cover 1 and the sloped terrain are the same, and the top surface of the manhole cover 1 is flush with the sloped terrain, so that on the sloped terrain, the manhole cover 1 is also in an inclined state, avoiding leveling a flat ground on the slope before installation.

[0080] A crossbeam 221 is mounted on the expansion ring 22 , and the crossbeam 221 is arranged along the diameter of the expansion ring 22 , and the crossbeam 221 is located directly above the lead screw 31 and the sleeve 32 ;

[0081] The pin seat 33 is fixed at the center of the crossbeam 221, the flared ring 22 is in a horizontal position, the lead screw 31 is retracted into the sleeve 32 and in a horizontal position, the lead screw 31 extends out of the sleeve 32, and the flared ring 22 is tilted. The crossbeam 221 is set to make the flared ring 22 more solid as a whole and also provide an installation position for the pin seat 33.

[0082] The support assembly 34 includes a support ring 341, a support rod 342 and a support plate 343. The support plate 343 is fixed to the inner wall of the well seat 4 by welding. One end of the support rod 342 is vertically fixed to the support plate 343. The support ring 341 is fixed to the other end of the support rod 342. The support ring 341 is sleeved on the coupling 35.

[0083] The coupling 35 includes a center frame 351, a first coupling end 352, a second coupling end 353, and a limiting outer ring 354. The first coupling end 352 and the second coupling end 353 are movably connected through the center frame 351, and the limiting outer ring 354 is fixed on the outer wall of the second coupling end 353.

[0084] The ports of the first coupling end 352 and the second coupling end 353 are fixed to the sleeve 32 and the adjusting shaft 36 respectively, and the limiting outer ring 354 is inserted into the annular groove of the inner ring of the supporting ring 341 .

[0085] The center frame 351 is a cross structure, and screw holes are provided on the ends of the center frame 351. Bolts passing through the first coupling end 352 and the second coupling end 353 are screwed into the screw holes for fixing.

[0086] The first coupling end 352 and the second coupling end 353 are arranged with the center frame 351 during rotation, and the first coupling end 352 can also rotate around the center frame 351 while rotating, so that the sleeve 32 and the adjusting shaft 36 can rotate synchronously even if they are not on the same axis, and the rotation angles of the two will also change accordingly.

[0087] In this embodiment, the adjusting shaft 36 rotates, and the coupling 35 drives the sleeve 32 to rotate. During the rotation of the sleeve 32, the lead screw 31 slowly extends and retracts along the sleeve 32, thereby achieving the purpose of adjusting the angle of the manhole cover 1.

[0088] The auxiliary support components include a telescopic support frame and spherical hinges installed at both ends of the telescopic support rod, wherein the spherical hinge at one end of the telescopic support frame is connected to the expansion ring 22, and the spherical hinge at the other end of the telescopic support frame is connected to the well seat 4. When the expansion ring 22 rotates, the telescopic support frame also adjusts the angle accordingly through the spherical hinges on both sides, thereby supporting the inclined expansion ring 22.

[0089] Based on the above-mentioned special manhole cover for terrain with a slope, the present embodiment proposes an assembly method of a special manhole cover for terrain with a slope, in order to better demonstrate the assembly process of the special manhole cover for terrain with a slope, which includes the following steps:

[0090] Step 1: The manhole cover 1 and the manhole ring 2 are connected by inserting a pin shaft into the pin seat, and the ring 37 at one end of the bottom of the expansion ring 22 is sleeved on the limit shaft 38 to complete the movable connection between the expansion ring 22 and the manhole seat 4;

[0091] Step 2: The limiting outer ring 354 of the second coupling end 353 is inserted into the supporting ring 341 , and the second coupling end 353 is fixed to the adjusting shaft 36 by bolts, and the adjusting shaft 36 passes through the well seat 4 ;

[0092] Step 3: The lead screw 31 is screwed into the sleeve 32, the other end of the lead screw 31 is exposed, and the end of the lead screw 31 is inserted into the pin seat 33 and penetrated by the pin;

[0093] Step 4: The sleeve 32 is fixed to the first coupling end 352 by bolts, and the spherical hinges on both sides of the support frame are installed on the expansion ring 22 and the well seat 4 to complete the assembly.

[0094] To sum up; the special manhole cover with sloped terrain and its assembly method of the present invention, the other end of the adjusting shaft 36 horizontally passes through the manhole seat 4, one end of the screw 31 is meshed with the sleeve 32, and the pin connected to the other end of the screw 31 is inserted into the pin seat 33 for active connection, and the adjusting shaft 36 rotates synchronously with the sleeve 32 through the coupling 35, and the position between the sleeve 32 and the screw 31 is adjusted to drive the expansion ring 22 to rotate around the limit shaft 38 to adapt to the slope. After first detecting the slope angle of the terrain, the angle of the manhole cover 1 is changed by rotating the adjusting shaft 36, so that the manhole seat 4 is in a horizontal position, and the manhole cover 1 is in an inclined position, and the manhole seat 4 is laid at the wellhead of the sloped sewer, the manhole cover 1 and the sloped terrain have the same inclination, and the top surface of the manhole cover 1 is flush with the sloped terrain, so that on the sloped terrain, the manhole cover 1 is also in a tilted state, avoiding leveling a flat ground on the slope before installation. The coupling 35 drives the sleeve 32 to rotate as well. During the rotation of the sleeve 32 , the lead screw 31 slowly extends and retracts along the sleeve 32 , thereby achieving the purpose of adjusting the angle of the manhole cover 1 .

[0095] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A special manhole cover with a slope, characterized in that: The invention comprises a manhole cover (1) and a manhole ring (2), wherein a notch (21) is provided on the inner side of the manhole ring (2), a protruding expansion ring (22) is fixed on the bottom end of the manhole ring (2), and the manhole ring (2) and the expansion ring (22) are fixed by reinforcing ribs, and is characterized in that: a slope adjustment component (3) is installed on the bottom surface of the expansion ring (22), and the expansion ring (22) is connected to the manhole seat (4) through the slope adjustment component (3); a pin shaft is inserted through the notch (21) of the manhole ring (2), and a pin seat fixed on the outer edge of the manhole cover (1) is penetrated by the pin shaft; The slope adjustment component (3) comprises a lead screw (31), a sleeve (32), a pin seat (33), a support component (34), a coupling (35), an adjustment shaft (36), a collar (37) and a limit shaft (38); the support component (34) is fixed on the inner wall of the well seat (4); the sleeve (32) and the adjustment shaft (36) are connected via the coupling (35); the top end of the support component (34) is sleeved on the coupling (35); the collar (37) is fixed on the bottom surface of the expansion ring (22); the well seat (4) is located below the collar (37) and is provided with a strip groove (41); the limit shaft (38) is fixed in the strip groove (41); the collar (37) is penetrated by the limit shaft (38); the other end of the adjustment shaft (36) horizontally passes through the well seat (4); one end of the lead screw (31) and the sleeve (32) are connected to each other; ) are meshed, a pin connected to the other end of the lead screw (31) is inserted into a pin seat (33) for active connection, an adjusting shaft (36) rotates synchronously with the sleeve (32) through a coupling (35), and the position between the sleeve (32) and the lead screw (31) is adjusted to drive the flaring ring (22) to rotate around the limit shaft (38) to adapt to the slope, a crossbeam (221) is installed on the flaring ring (22), the crossbeam (221) is arranged along the diameter of the flaring ring (22), and the crossbeam (221) is located directly above the lead screw (31) and the sleeve (32); the pin seat (33) is fixed at the center of the crossbeam (221), the flaring ring (22) is located in a horizontal position, the lead screw (31) is retracted into the sleeve (32) and is located in a horizontal position, the lead screw (31) extends out of the sleeve (32), and the flaring ring (22) is tilted; The support assembly (34) includes a support ring (341), a support rod (342) and a support plate (343). The support plate (343) is fixed to the inner wall of the well seat (4) by welding. One end of the support rod (342) is vertically fixed to the support plate (343). The support ring (341) is fixed to the other end of the support rod (342). The support ring (341) is sleeved on the coupling (35). The coupling (35) includes a center frame (351), a first coupling end (352), and a second coupling end (353). ), a second coupling end (353), and a limiting outer ring (354); the first coupling end (352) and the second coupling end (353) are movably connected via a center frame (351); the limiting outer ring (354) is fixed on the outer wall of the first coupling end (352); the ports of the second coupling end (353) and the first coupling end (352) are respectively fixed to the sleeve (32) and the adjusting shaft (36); the limiting outer ring (354) is inserted into the annular groove of the inner ring of the support ring (341).

2. A special manhole cover with a slope as claimed in claim 1, characterized in that: The well seat (4) is laid at the well mouth of the sloped sewer, the well cover (1) and the sloped terrain have the same inclination, and the top surface of the well cover (1) is flush with the sloped terrain.

3. A special manhole cover with a slope as claimed in claim 2, characterized in that: The center frame (351) is a cross structure, and screw holes are arranged on the ends of the center frame (351), and bolts passing through the first shaft connecting end (352) and the second shaft connecting end (353) are screwed into the screw holes for fixing.

4. A method for assembling a special manhole cover for a sloped terrain according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1: The manhole cover (1) and the manhole ring (2) are connected by inserting a pin shaft into a pin seat, and a collar (37) at one end of the bottom of the expansion ring (22) is sleeved on the limit shaft (38), thereby completing the movable connection between the expansion ring (22) and the manhole seat (4); S2: The limiting outer ring (354) of the first coupling end (352) is inserted into the supporting ring (341), the first coupling end (352) and the adjusting shaft (36) are fixed by bolts, and the adjusting shaft (36) passes through the well seat (4); S3: The lead screw (31) is screwed into the sleeve (32), the other end of the lead screw (31) is exposed, and the end of the lead screw (31) is inserted into the pin seat (33) and penetrated by the pin; S4: The sleeve (32) and the second coupling end (353) are fixed by bolts to complete the assembly.

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