A pipe gallery manhole cover capable of stopping at any angle and method thereof

Abstract

The present invention discloses a pipe gallery manhole cover and method that can stop at any angle, which belongs to the technical field of pipe gallery manhole covers, and includes a manhole cover body and a mounting seat, wherein an inner groove for installing the manhole cover body is provided in the mounting seat; and an axle connection assembly is provided between the mounting seat and the manhole cover body. The present invention discloses a pipe gallery manhole cover and method that can stop at any angle, wherein the first abutment plate and the second abutment plate limit the positioning blade and the installation shaft rod to realize the stopping of the manhole cover body, satisfying the stopping of the manhole cover body at any angle, increasing the convenience of use, and through the dual limitation of the fixed semi-ring and the covering semi-ring, improving the overall load-bearing performance, preventing deformation of the support, and improving the service life, preventing the covering semi-ring from shifting by limiting movement, improving the accuracy of the moving alignment, adjusting the position of the left and right clamping parts, and misaligning the positioning blades to reset the manhole cover body, and being able to perform limit adjustment as needed to meet the use requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of pipe gallery manhole covers, and in particular to a pipe gallery manhole cover capable of being stopped at any angle and a method thereof. Background Art

[0002] A pipe gallery is a corridor for pipelines. Many pipelines in chemical and related factories are concentrated together and arranged along the outside of the equipment or factory buildings. They are usually in the air and supported by brackets to form a corridor-like appearance. A few pipe galleries are located underground, and manhole covers are used to cover deep wells on roads or in homes to prevent people or objects from falling.

[0003] In the prior art, for example, publication number CN216640677U discloses a self-positioning tunnel manhole cover, in which a positioning signal transmitter is powered by a power supply battery in a positioning assembly, so that the positioning signal transmitter sends out a positioning signal, so that maintenance personnel can use the equipment to receive the positioning signal and determine the actual position of the tunnel manhole cover before entering the tunnel, thereby facilitating the maintenance personnel to locate the orientation of the manhole cover in the tunnel, thereby facilitating the maintenance or repair of the tunnel manhole cover.

[0004] However, during the process of opening the pipe gallery manhole cover, the above-mentioned pipe gallery manhole cover often has the following defects:

[0005] 1. It is impossible to automatically support the manhole cover after it is flipped over, and there is no way to achieve free stop;

[0006] 2. It is not possible to automatically reset after a free stop, which makes the adjustment process complicated and affects the use. Summary of the Invention

[0007] The object of the present invention is to provide a pipe gallery manhole cover and method that can stop at any angle. Under the action of the first abutment plate and the second abutment plate, the positioning blade and the installation shaft are limited to realize the stopping of the manhole cover body, satisfying the stopping of the manhole cover body at any angle, increasing the convenience of use, and through the double limitation of the fixed semi-ring and the covering semi-ring, the overall load-bearing performance is improved, the deformation of the support is prevented, and the service life is increased. Through the limited movement, the displacement of the covering semi-ring is prevented, and the accuracy of the movement and positioning is improved. The position of the left and right clamps is adjusted to be misaligned with the positioning blade to reset the manhole cover body. The limit adjustment can be performed as needed to meet the use requirements, so as to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A pipe gallery manhole cover capable of being stopped at any angle comprises a manhole cover body and a mounting seat, wherein the mounting seat is provided with an inner groove for mounting the manhole cover body;

[0010] A shaft connection assembly is provided between the mounting seat and the manhole cover body;

[0011] The shaft connection assembly includes a shaft connection seat, an inner connection groove, a movable seat and a mounting shaft rod. The shaft connection seat is arranged at the side end of the mounting seat, an inner connection groove is opened inside the shaft connection seat, the movable seat is fixed to the side end of the manhole cover body, the movable seat is arranged in the inner connection groove, and the mounting shaft rod is connected through the movable seat and the shaft connection seat.

[0012] The two ends of the mounting shaft are respectively sleeved with a left clamping piece and a right clamping piece, a driving assembly is arranged between the left clamping piece and the right clamping piece, and the left clamping piece and the right clamping piece have the same structure and are symmetrically arranged on the mounting shaft.

[0013] Furthermore, a support plate is provided at the bottom end of the mounting seat, and a plurality of side-by-side triangular support plates are provided between the support plate and the outer side wall of the mounting seat.

[0014] Furthermore, the left clamping part includes a sleeve ring, a locking blade, a fixed half ring and a covering half ring. One side of the fixed half ring is fixed to the side end of the shaft seat. The covering half ring is fitted inside the fixed half ring. The sleeve ring is set at the inner end of the covering half ring. The sleeve ring is sleeved on one end of the mounting shaft rod. Multiple groups of locking blades for limiting and fixing are installed on the surface of the sleeve ring.

[0015] Furthermore, two sliding grooves are opened on the inner wall of the fixed semi-ring, and two sliders matching the sliding grooves are installed on the outer wall of the covering semi-ring. The covering semi-ring slides in the sliding grooves on the inner wall of the fixed semi-ring through the sliders.

[0016] Furthermore, mounting ring plates are respectively provided on both sides of the covering half ring, two inner connecting rods are installed between the two mounting ring plates, the outer sides of the two inner connecting rods are respectively sleeved with movable sleeves, and the side ends of the two movable sleeves are respectively fixed with a first limiting clamping plate and a second limiting clamping plate, the side end of the first limiting clamping plate is provided with a first abutment plate, and the side end of the second limiting clamping plate is provided with a second abutment plate, and the first abutment plate and the second abutment plate are fixed between the two mounting ring plates.

[0017] Furthermore, the interior of the movable sleeve is sleeved on the inner connecting rod through a torsion spring, and the first limiting clamping plate and the second limiting clamping plate are limited clockwise by the positioning blade.

[0018] Furthermore, the driving assembly includes an air pump, a bidirectional telescopic cylinder, an air pipe, a closed partition and an air vent. The air delivery end of the air pump is connected to the air pipe. The bidirectional telescopic cylinder is laterally fixed in the internal groove. Two closed partitions are provided at the inner end of the bidirectional telescopic cylinder. Air vents are opened in the center of the two closed partitions. One end of the air pipe is connected to the space between the two closed partitions.

[0019] Furthermore, two groups of movable plates are provided inside the two-way telescopic cylinder at both ends of the closed partition. The outer walls of the two groups of movable plates are covered with piston sleeves, and the movable plates are fitted with the inner walls of the two-way telescopic cylinder through the piston sleeves. Connecting rods are provided on the two groups of movable plates, and the two groups of movable plates are respectively connected to the left clamp and the right clamp through the connecting rods.

[0020] The present invention provides another technical solution: a method for using a pipe gallery manhole cover that can be stopped at any angle, comprising the following steps:

[0021] Step 1: When the manhole cover body is pulled out from the inner groove, the movable seat at the side end of the manhole cover body flips in the inner groove of the shaft seat, and at the same time drives the installation shaft to rotate, thereby driving the left and right clamping parts to limit;

[0022] Step 2: During the flipping process, the shaft is installed to drive the positioning blade to rotate. The positioning blade rotates counterclockwise. During the flipping process, the left and right sets of positioning blades squeeze the first limit card plate and the second limit card plate respectively. Under the action of the torsion spring, the first limit card plate flips downward and the second limit card plate flips upward, and no longer blocks the positioning blade plate.

[0023] Step 3: When the first limit card plate and the second limit card plate are flipped, the movable sleeve is driven to rotate on the inner connecting rod. When the first limit card plate and the second limit card plate are squeezed to a certain position and no longer contact the positioning blade, the torsion spring drives the first limit card plate, the second limit card plate and the movable sleeve to reset.

[0024] Step 4: When the cover is flipped to the required angle, the cover body stops flipping. Under the action of gravity, the cover body falls clockwise. When the installation shaft drives the positioning blade to rotate clockwise, the positioning blade squeezes the first limiting card plate and the second limiting card plate clockwise. Under the action of the first and second abutment plates, the positioning blade plate and the installation shaft rod are limited, and the cover body is stopped.

[0025] Step 5: When the manhole cover body needs to be reset, the air pump injects air into the middle of the closed partition in the two-way telescopic cylinder through the air pipe, and transports air to the two-way telescopic cylinder on both sides of the closed partition through the air holes on the closed partition. Under the action of air pressure, the two sets of movable plates are driven to move, thereby driving the connecting rod to adjust the position of the left and right clamps, and dislocate them with the clamping blades to reset the manhole cover body.

[0026] Furthermore, in step five, the connecting rod drives the covering half ring to slide within the sliding groove on the inner wall of the fixed half ring.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The pipe gallery manhole cover and method proposed by the present invention can be stopped at any angle. The first limiting card plate and the second limiting card plate are limited by the positioning vane clockwise. During the flipping process, the shaft rod is installed to drive the positioning vane and the fixed half ring to rotate, and the positioning vane rotates counterclockwise. During the flipping, the left and right groups of positioning vanes squeeze the first limiting card plate and the second limiting card plate respectively. Under the action of the torsion spring, the first limiting card plate flips downward and the second limiting card plate flips upward and is not locked with the positioning vane plate. When the first limiting card plate and the second limiting card plate are flipped, they drive the movable sleeve to rotate on the inner connecting rod. When flipping, after the first limiting card plate and the second limiting card plate are squeezed to a certain position, After no longer in contact with the positioning blade, the torsion spring drives the first limiting clamp, the second limiting clamp and the movable sleeve to reset. When it is flipped to the required angle, the manhole cover body stops flipping. Under the action of gravity, the manhole cover body falls clockwise. When the installation shaft drives the positioning blade to rotate clockwise, the positioning blade squeezes the first limiting clamp and the second limiting clamp clockwise. Under the action of the first and second abutment plates, the positioning blade and the installation shaft are limited to realize the stopping of the manhole cover body, satisfying the stopping of the manhole cover body at any angle, increasing the convenience of use, and through the double limitation of the fixed half ring and the covering half ring, the overall load-bearing performance is improved, the support is prevented from deformation, and the service life is increased.

[0029] 2. The pipe gallery manhole cover and method proposed in the present invention can be stopped at any angle. Two sliding grooves are opened on the inner wall of the fixed semi-ring, and two sliders matching the sliding grooves are installed on the outer wall of the covering semi-ring. The covering semi-ring slides in the sliding grooves on the inner wall of the fixed semi-ring through the sliders. The connecting rod drives the covering semi-ring to slide in the sliding grooves on the inner wall of the fixed semi-ring. The limited movement prevents the covering semi-ring from deflection, thereby improving the accuracy of the movement and positioning.

[0030] The two lever of the upper right corner of the second end is connected with the up-down knob on the bottom of the second end of the second stop block to stop the rotation of the push rod, and the two limit switches are connected with the up-down knob on the bottom of the second end of the second stop block to stop the rotation of the push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a side view of the overall structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the overall split structure of the present invention;

[0034] Figure 4 For the present invention Figure 2 A magnified view of point A;

[0035] Figure 5 This is a schematic diagram of the covered semi-ring structure of the present invention;

[0036] Figure 6 It is a cross-sectional view of the coated semi-ring of the present invention;

[0037] Figure 7 Schematic diagram of the connection structure between the fixed half ring and the covering half ring of the present invention;

[0038] Figure 8 This is a schematic diagram of the installation structure of the drive assembly of the present invention;

[0039] Figure 9 A partial cross-sectional view of a drive assembly of the present invention;

[0040] Figure 10 It is a cross-sectional view of the bidirectional telescopic cylinder structure of the present invention.

[0041] In the figure: 1. manhole cover body; 2. mounting seat; 21. support plate; 22. triangular abutment plate; 23. inner groove; 3. shaft connection assembly; 31. shaft connection seat; 32. inner groove; 33. movable seat; 34. mounting shaft rod; 4. left clamping piece; 41. sleeve ring; 42. positioning blade; 43. fixed half ring; 431. slide groove; 432. slider; 44. covering half ring; 441. mounting ring plate; 442. inner connecting rod; 443. movable sleeve; 444. first limiting clamping plate; 445. second limiting clamping plate; 446. first abutment plate; 447. second abutment plate; 5. right clamping piece; 6. drive assembly; 61. air pump; 62. two-way telescopic cylinder; 621. movable plate; 622. piston sleeve; 623. connecting rod; 63. air pipe; 64. closed partition; 65. air vent. DETAILED DESCRIPTION

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0043] See also Figure 1-Figure 3 A pipe gallery manhole cover that can be stopped at any angle includes a manhole cover body 1 and a mounting base 2. The mounting base 2 is provided with an inner groove 23 for installing the manhole cover body 1. A support plate 21 is provided at the bottom end of the mounting base 2. A plurality of triangular support plates 22 are arranged side by side between the support plate 21 and the outer wall of the mounting base 2. The outer side of the mounting base 2 is reinforced by multiple sets of triangular support plates 22 to improve the overall stability.

[0044] A shaft connection assembly 3 is provided between the mounting seat 2 and the manhole cover body 1. The shaft connection assembly 3 includes a shaft connection seat 31, an inner groove 32, a movable seat 33 and a mounting shaft rod 34. The shaft connection seat 31 is provided at the side end of the mounting seat 2. An inner groove 32 is provided inside the shaft connection seat 31. The movable seat 33 is fixed at the side end of the manhole cover body 1. The movable seat 33 is provided in the inner groove 32. An mounting shaft rod 34 is connected through the movable seat 33 and the shaft connection seat 31. The two ends of the mounting shaft rod 34 are respectively sleeved with the left clamping member 4 and A driving assembly 6 is provided between the right clamping part 5, the left clamping part 4 and the right clamping part 5. The left clamping part 4 and the right clamping part 5 have the same structure and are symmetrically arranged on the installation shaft 34. When the manhole cover body 1 is pulled out from the inner groove 23, the movable seat 33 at the side end of the manhole cover body 1 flips in the inner groove 32 of the shaft seat 31, and at the same time drives the installation shaft 34 to rotate, thereby driving the left clamping part 4 and the right clamping part 5 to limit, effectively adjusting the angle of the manhole cover body 1, and facilitating the opening of the manhole cover body 1.

[0045] In order to solve the problem that the existing technology cannot automatically support the manhole cover after it is flipped over, and there is no way to achieve free stop, please refer to Figure 4-Figure 6 , this embodiment provides the following technical solutions:

[0046] The left clamping part 4 includes a sleeve ring 41, a positioning blade 42, a fixed half ring 43 and a covering half ring 44. One side of the fixed half ring 43 is fixed to the side end of the shaft seat 31. The covering half ring 44 is fitted inside the fixed half ring 43. The inner end of the covering half ring 44 is provided with a sleeve ring 41. The sleeve ring 41 is sleeved on one end of the mounting shaft rod 34. Multiple groups of positioning blades 42 for limiting and fixing are installed on the surface of the sleeve ring 41. Both sides of the covering half ring 44 are respectively provided with mounting ring plates 441. Two inner connecting rods 442 are installed between the two mounting ring plates 441. The outer sides of the two inner connecting rods 442 are respectively sleeved with movable sleeves 443. The two movable sleeves 4 The side ends of 43 are respectively fixed with a first limiting card plate 444 and a second limiting card plate 445, the side end of the first limiting card plate 444 is provided with a first abutment plate 446, and the side end of the second limiting card plate 445 is provided with a second abutment plate 447, the first abutment plate 446 and the second abutment plate 447 are fixed between the two mounting ring plates 441, the interior of the movable sleeve 443 is sleeved on the inner connecting rod 442 through a torsion spring, the first limiting card plate 444 and the second limiting card plate 445 are limited clockwise with the positioning leaf plate 42, and in the process of flipping, the mounting shaft 34 drives the positioning leaf plate 42 to rotate, and the positioning leaf plate 42 rotates counterclockwise, and when flipping, the left and right sides are rotated. The two groups of positioning blades 42 squeeze the first limiting clamping plate 444 and the second limiting clamping plate 445 respectively. Under the action of the torsion spring, the first limiting clamping plate 444 flips downward and the second limiting clamping plate 445 flips upward and is not positioned with the positioning blade 42. When the first limiting clamping plate 444 and the second limiting clamping plate 445 flip, they drive the movable sleeve 443 to rotate on the inner connecting rod 442. When flipping, after the first limiting clamping plate 444 and the second limiting clamping plate 445 are squeezed to a certain position and no longer contact the positioning blade 42, the torsion spring drives the first limiting clamping plate 444, the second limiting clamping plate 445 and the movable sleeve 443 to reset. When flipped to When the required angle is reached, the manhole cover body 1 stops flipping, and under the action of gravity, the manhole cover body 1 falls clockwise. When the installation shaft 34 drives the locking blade 42 to rotate clockwise, the locking blade 42 squeezes the first limiting card plate 444 and the second limiting card plate 445 clockwise. Under the action of the first abutment plate 446 and the second abutment plate 447, the locking blade 42 and the installation shaft 34 are limited to realize the stopping of the manhole cover body 1, satisfying the stopping of the manhole cover body 1 at any angle, increasing the convenience of use, and through the dual limitation of the fixed half ring 43 and the covering half ring 44, the overall load-bearing performance is improved, the support is prevented from deformation, and the service life is increased.

[0047] In order to solve the problem that the existing technology cannot move in the automatic limit, resulting in inaccurate positioning and the accuracy of the subsequent positioning, please refer to Figure 7 , this embodiment provides the following technical solutions:

[0048] Two sliding grooves 431 are provided on the inner wall of the fixed semi-ring 43, and two sliders 432 matching the sliding grooves 431 are installed on the outer wall of the covering semi-ring 44. The covering semi-ring 44 slides in the sliding grooves 431 on the inner wall of the fixed semi-ring 43 through the sliders 432. The connecting rod 623 drives the covering semi-ring 44 to slide in the sliding grooves 431 on the inner wall of the fixed semi-ring 43. Through the limited movement, the covering semi-ring 44 is prevented from being offset, thereby improving the accuracy of the movement and positioning.

[0049] In order to solve the problem that the existing technology cannot automatically reset after free stop, which makes the adjustment process complicated and affects the use, please refer to Figures 8-10 , this embodiment provides the following technical solutions:

[0050] The driving assembly 6 includes an air pump 61, a two-way telescopic cylinder 62, an air pipe 63, a closed partition 64 and an air vent 65. The air delivery end of the air pump 61 is connected to the air delivery pipe 63. The two-way telescopic cylinder 62 is transversely fixed in the internal groove 32. Two closed partitions 64 are provided at the inner end of the two-way telescopic cylinder 62. The centers of the two closed partitions 64 are provided with air vents 65. One end of the air delivery pipe 63 is interconnected with the space between the two closed partitions 64. Two groups of movable plates 621 are provided inside the two-way telescopic cylinder 62 at both ends of the closed partition 64. The outer walls of the two groups of movable plates 621 are covered with piston sleeves 622. The movable plates 621 are attached to the inner wall of the two-way telescopic cylinder 62 through the piston sleeves 622. When the manhole cover body 1 needs to be reset, the air pump 61 injects air into the middle of the closed partition 64 in the two-way telescopic cylinder 62 through the air pipe 63, and the air is transported to the two-way telescopic cylinder 62 on both sides of the closed partition 64 through the air holes 65 on the closed partition 64. Under the action of air pressure, the two groups of movable plates 621 are driven to move, thereby driving the connecting rod 623 to adjust the position of the left and right clamping parts 4 and 5, and to dislocate the clamping blade 42, so that the manhole cover body 1 is reset. The limit adjustment can be performed as needed to meet the use requirements.

[0051] In order to better illustrate the use process of the pipe gallery manhole cover that can be stopped at any angle, this embodiment proposes a method for using the pipe gallery manhole cover that can be stopped at any angle, including the following steps:

[0052] Step 1: When the manhole cover body 1 is pulled out from the inner groove 23, the movable seat 33 at the side end of the manhole cover body 1 flips in the inner groove 32 of the shaft seat 31, and at the same time drives the installation shaft 34 to rotate, thereby driving the left clamping member 4 and the right clamping member 5 to limit the position;

[0053] Step 2: During the flipping process, the mounting shaft 34 drives the locking blade 42 to rotate. The locking blade 42 rotates counterclockwise. During the flipping process, the left and right sets of locking blades 42 squeeze the first limiting clamping plate 444 and the second limiting clamping plate 445 respectively. Under the action of the torsion spring, the first limiting clamping plate 444 flips downward, and the second limiting clamping plate 445 flips upward, and no longer blocks the locking blade 42.

[0054] Step 3: When the first limiting clamping plate 444 and the second limiting clamping plate 445 are turned over, they drive the movable sleeve 443 to rotate on the inner connecting rod 442. When the first limiting clamping plate 444 and the second limiting clamping plate 445 are squeezed to a certain position and no longer contact the locking blade 42, the torsion spring drives the first limiting clamping plate 444, the second limiting clamping plate 445 and the movable sleeve 443 to return to their original position.

[0055] Step 4: When the cover body 1 is flipped to the required angle, the cover body 1 stops flipping. Under the action of gravity, the cover body 1 falls clockwise. When the mounting shaft 34 drives the locking blade 42 to rotate clockwise, the locking blade 42 squeezes the first limiting clamping plate 444 and the second limiting clamping plate 445 clockwise. Under the action of the first abutment plate 446 and the second abutment plate 447, the locking blade 42 and the mounting shaft 34 are limited, and the cover body 1 is stopped.

[0056] Step 5: When the manhole cover body 1 needs to be reset, the air pump 61 injects air into the middle of the closed partition 64 in the two-way telescopic cylinder 62 through the air pipe 63, and the air is transported to the two-way telescopic cylinder 62 on both sides of the closed partition 64 through the air holes 65 on the closed partition 64. Under the action of air pressure, the two groups of movable plates 621 are driven to move, thereby driving the connecting rod 623 to adjust the position of the left clamping part 4 and the right clamping part 5, and dislocate them with the locking blade 42 to reset the manhole cover body 1.

[0057] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A method for using a pipe gallery manhole cover that can be stopped at any angle, used to demonstrate the operation process of the pipe gallery manhole cover that can be stopped at any angle, characterized in that: A pipe gallery manhole cover capable of stopping at any angle comprises a manhole cover body (1) and a mounting seat (2), wherein an inner groove (23) for mounting the manhole cover body (1) is provided in the mounting seat (2); an axial connection assembly (3) is provided between the mounting seat (2) and the manhole cover body (1); the axial connection assembly (3) comprises an axial connection seat (31), an inner connection groove (32), a movable seat (33) and an installation shaft rod (34), wherein the axial connection seat (31) is provided at a side end of the mounting seat (2), an inner connection groove (32) is provided inside the axial connection seat (31), the movable seat (33) is fixed at a side end of the manhole cover body (1), the movable seat (33) is provided in the inner connection groove (32), an installation shaft rod (34) is passed through between the movable seat (33) and the axial connection seat (31), and the mounting shaft rod (34) is connected to the mounting seat (2). A support plate (21) is provided at the bottom end of the seat (2), and a plurality of triangular abutment plates (22) are arranged side by side between the support plate (21) and the outer side wall of the mounting seat (2). The two ends of the mounting shaft (34) are respectively sleeved with a left clamping member (4) and a right clamping member (5), and a driving assembly (6) is provided between the left clamping member (4) and the right clamping member (5). The left clamping member (4) and the right clamping member (5) have the same structure and are symmetrically arranged on the mounting shaft (34). The left clamping member (4) includes a sleeve ring (41), a locking blade (42), a fixed half ring (43) and a covering half ring (44). One side of the fixed half ring (43) is fixed to the side end of the shaft seat (31), and a covering half ring (44) is provided in the fixed half ring (43). The covering half ring (44) is provided in the covering half ring (44). A sleeve ring (41) is provided at the end thereof, and the sleeve ring (41) is sleeved on one end of the mounting shaft (34). A plurality of groups of positioning blades (42) for limiting and fixing are installed on the surface of the sleeve ring (41). Mounting ring plates (441) are provided on both sides of the covering half ring (44). Two inner connecting rods (442) are installed between the two mounting ring plates (441). The outer sides of the two inner connecting rods (442) are sleeved on movable sleeves (443) respectively. The side ends of the two movable sleeves (443) are fixed with a first limiting clamping plate (444) and a second limiting clamping plate (445). The side end of the first limiting clamping plate (444) is provided with a first abutting plate (446). The side end of the second limiting clamping plate (445) is provided with a second abutting plate (447). The first abutting plate (44 46) and the second stop plate (447) are fixed between the two mounting ring plates (441), the interior of the movable sleeve (443) is sleeved on the inner connecting rod (442) through a torsion spring, the first limiting card plate (444) and the second limiting card plate (445) are clockwise limited with the positioning blade (42), the driving assembly (6) includes an air pump (61), a two-way telescopic cylinder (62), an air supply pipe (63), a closed partition (64) and an air vent (65), the air supply end of the air pump (61) is connected to the air supply pipe (63), the two-way telescopic cylinder (62) is transversely fixed in the inner connecting groove (32), the inner end of the two-way telescopic cylinder (62) is provided with two closed partitions (64), and the centers of the two closed partitions (64) are provided with air vents (65),One end of the gas transmission pipe (63) is interconnected with the space between the two closed partitions (64). Two groups of movable plates (621) are provided inside the two-way telescopic cylinder (62) at both ends of the closed partition (64). The outer walls of the two groups of movable plates (621) are covered with piston sleeves (622). The movable plates (621) are fitted with the inner walls of the two-way telescopic cylinder (62) through the piston sleeves (622). The two groups of movable plates (621) are provided with connecting rods (623). The two groups of movable plates (621) are respectively connected to the left clamping member (4) and the right clamping member (5) through the connecting rods (623). A method for using a pipe gallery manhole cover that can be stopped at any angle comprises the following steps: Step 1: When the manhole cover body (1) is pulled out from the inner groove (23), the movable seat (33) at the side end of the manhole cover body (1) turns over in the inner groove (32) of the shaft seat (31), and at the same time drives the mounting shaft (34) to rotate, thereby driving the left clamping member (4) and the right clamping member (5) to limit; Step 2: During the flipping process, the shaft (34) is installed to drive the positioning blade (42) to rotate, and the positioning blade (42) rotates counterclockwise. During the flipping process, the left and right groups of positioning blades (42) respectively squeeze the first limiting clamping plate (444) and the second limiting clamping plate (445). Under the action of the torsion spring, the first limiting clamping plate (444) flips downward, and the second limiting clamping plate (445) flips upward, and is not locked with the positioning blade (42); Step 3: When the first limiting card plate (444) and the second limiting card plate (445) are turned over, they drive the movable sleeve (443) to rotate on the inner connecting rod (442); and when the first limiting card plate (444) and the second limiting card plate (445) are squeezed to a certain position and no longer contact the positioning blade (42), the torsion spring drives the first limiting card plate (444), the second limiting card plate (445) and the movable sleeve (443) to reset; Step 4: When the cover body (1) is turned over to the required angle, the cover body (1) stops turning over. Under the action of gravity, the cover body (1) falls clockwise downward. When the mounting shaft (34) drives the positioning blade (42) to rotate clockwise, the positioning blade (42) squeezes the first limiting clamping plate (444) and the second limiting clamping plate (445) clockwise. Under the action of the first abutting plate (446) and the second abutting plate (447), the positioning blade (42) and the mounting shaft (34) are limited, and the cover body (1) is stopped. Step 5: When the manhole cover body (1) needs to be reset, the air pump (61) injects air into the middle of the closed partition (64) in the two-way telescopic cylinder (62) through the air pipe (63), and the air is transported to the two-way telescopic cylinder (62) on both sides of the closed partition (64) through the air vents (65) on the closed partition (64). Under the action of air pressure, the two sets of movable plates (621) are driven to move, thereby driving the connecting rod (623) to adjust the position of the left clamping member (4) and the right clamping member (5), and dislocate them with the clamping blade (42), so that the manhole cover body (1) is reset.

2. The method for using a pipe gallery manhole cover capable of stopping at any angle according to claim 1, characterized in that: Two sliding grooves (431) are provided on the inner wall of the fixed semi-ring (43), and two sliding blocks (432) matching the sliding grooves (431) are installed on the outer wall of the covering semi-ring (44). The covering semi-ring (44) slides in the sliding grooves (431) on the inner wall of the fixed semi-ring (43) through the sliding blocks (432).

3. The method for using a pipe gallery manhole cover capable of stopping at any angle according to claim 2, characterized in that: In step five, the connecting rod (623) drives the covering half ring (44) to slide within the sliding groove (431) on the inner wall of the fixed half ring (43).

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