A flat open hydraulic well cover for a utility tunnel and a method of implementing the same

Abstract

The application discloses a flat-open hydraulic well lid for a comprehensive pipe gallery and an implementation method thereof, and belongs to the technical field of hydraulic well lids. The flat-open hydraulic well lid for the comprehensive pipe gallery comprises a well lid support ring, the upper end of the outer part of the well lid support ring is provided with a concrete well lid; the inner part of two structure containing frames is provided with recessed cavities, one side of the inner part of the recessed cavities is provided with an anti-falling frame, one side of the inner part of the anti-falling frame is provided with a limiting net, the lower end of one side of the anti-falling frame is provided with a third transmission block, and the upper end of the third transmission block is provided with a second transmission block. The application solves the problem that the articles carried by maintenance personnel are prone to falling off in the actual use process of the existing hydraulic well lid, the anti-falling frame can be turned over by the rotation of the first rotating connection shaft, the transmission of the second transmission belt and the first transmission belt, and the articles carried by the maintenance personnel are prevented from falling off.

Description

Technical Field

[0001] This invention relates to the field of hydraulic manhole cover technology, specifically to a hinged hydraulic manhole cover for integrated utility tunnels and its implementation method. Background Technology

[0002] Integrated utility tunnels are a type of piping system used to connect the interior and exterior of buildings. They can accommodate pipes, cables, conduits, fire protection systems, air conditioning systems, and ventilation systems. Integrated utility tunnels offer safer, more reliable, and more energy-efficient solutions. They reduce the complexity of internal piping systems and effectively prevent pollution and leaks. Drainage areas within integrated utility tunnels need to be enclosed, and hydraulic manhole covers need to be installed during the enclosing process. A hydraulic manhole cover is a device used to cover sewage ditches or drainage wells. It consists of a heavy-duty metal cover and a hydraulic cylinder, which uses hydraulic pressure to control the opening and closing of the cover. This device helps prevent unauthorized humans or animals from entering sewage ditches or drainage wells, thereby protecting the environment and safety.

[0003] Chinese patent CN211257083U discloses an automatic hydraulic manhole cover for integrated utility tunnels, comprising a manhole base and a manhole cover. The manhole cover is positioned over the manhole opening of the manhole base. The manhole base is equipped with a hydraulic cylinder and an electric gripper, which are spaced apart from each other. The manhole cover has a pin for mating with the electric gripper; when the pin is engaged with the electric gripper, the manhole cover is locked. The push rod of the hydraulic cylinder faces upwards and is connected to the bottom of the manhole cover. Compared with related technologies, the automatic hydraulic manhole cover for integrated utility tunnels provided by this utility model has reliable structural performance, is easy to automatically open and close, and saves costs.

[0004] In actual use, when the hydraulic manhole cover of the aforementioned patent is unfolded and the inside of the drainage hole is inspected, the items carried by the maintenance personnel are prone to fall off. There is no restraining structure to restrict the falling items, which is inconvenient for maintenance. Therefore, it does not meet the existing needs. In response, we propose a swing-type hydraulic manhole cover for integrated utility tunnels and its implementation method. Summary of the Invention

[0005] The purpose of this invention is to provide a hinged hydraulic manhole cover for integrated utility tunnels and its implementation method. The concrete manhole cover is pushed open by the extension of a hydraulic telescopic rod. During the opening process, the first rotating connecting shaft rotates. The rotation of the first rotating connecting shaft can drive the anti-detachment frame to flip after being driven by the second transmission belt and the first transmission belt. The flipping of the anti-detachment frame can drive the restraining net to rotate. The anti-detachment frames on both sides rotate simultaneously and can wrap around the lower end of the manhole cover support ring. The wrapping can directly restrain the inside of the manhole cover support ring and prevent maintenance personnel from losing their personal belongings. In addition, during the resetting of the concrete manhole cover, the two anti-detachment frames can be reset and housed in the recessed cavity. The overall structure facilitates maintenance by maintenance personnel and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a hinged hydraulic manhole cover for integrated utility tunnels, comprising a manhole cover support ring, wherein a concrete manhole cover is provided at the upper end of the outer side of the manhole cover support ring;

[0007] It also includes structural receiving frames, which are set on both sides of the lower end inside the manhole cover support ring. Each of the two structural receiving frames has a recessed cavity inside. Each recessed cavity has an anti-detachment frame on one side. Each anti-detachment frame has a limiting net on one side inside. The limiting net is fixedly connected to the anti-detachment frame by bolts. A third transmission block is set at the lower end of one side of the anti-detachment frame. A second transmission block is set at the upper end of the third transmission block. One end of both the second and third transmission blocks is rotatably connected to one side inside the structural receiving frame.

[0008] Preferably, a second transmission frame is provided in the middle inside the manhole cover support ring, and a second support frame is provided on both sides of the second transmission frame. The second support frame and the second transmission frame are rotatably connected by a first rotating connecting shaft. A fourth transmission block is provided on both sides of the first rotating connecting shaft, and the fourth transmission block and the first rotating connecting shaft are integrally formed. A fifth transmission block is provided on one side of the fourth transmission block, and the fifth transmission block and the fourth transmission block are connected by a second transmission belt.

[0009] Preferably, a second sector gear is provided at one end of the fifth transmission block, a first sector gear is provided on one side outside the second sector gear, and the outer side of the first sector gear is meshed with the outer side of the second sector gear. The first sector gear is rotatably connected to the inner wall of the manhole cover support ring through the first transmission block. The first transmission block, the second transmission block and the third transmission block are connected by a first transmission belt.

[0010] Preferably, a first transmission frame is provided at one end of the second transmission frame, and the first transmission frame and the second transmission frame are an integral structure. A first support frame is provided on both sides of the outer side of one end of the first transmission frame, and the first support frame and the first transmission frame are rotatably connected by a second rotating connecting shaft.

[0011] Preferably, the first support frame is located on one side of the lower end of the concrete manhole cover, and the concrete manhole cover is welded and fixed to the first support frame, while the second support frame is welded and fixed to the inner wall of the manhole cover support ring.

[0012] Preferably, a second return spring is provided on both sides of the outside of the first rotating connecting shaft, and the two second return springs are respectively located on both sides of the second transmission frame and between the second support frame. The two ends of the second return springs are welded and fixed to the second transmission frame and the second support frame respectively. A first return spring is provided on both sides of the outside of the second rotating connecting shaft, and the two first return springs are respectively located on both sides of the first transmission frame and between the first support frame. The two ends of the first return springs are welded and fixed to the first transmission frame and the first support frame respectively.

[0013] Preferably, a hydraulic telescopic rod is provided at the upper end of one of the structural receiving frames. The hydraulic telescopic rod is located between the concrete manhole cover and the structural receiving frame. The lower end of the hydraulic telescopic rod is fixedly connected to the upper end of the structural receiving frame by bolts. A connecting block is provided at the telescopic end of the hydraulic telescopic rod. A limiting ring is provided outside the connecting block. The limiting ring, the connecting block, and the hydraulic telescopic rod are welded and fixed. A sliding frame is provided outside the connecting block. The sliding frame is welded and fixed to the lower end of the concrete manhole cover. A first transverse sliding rail is provided inside the sliding frame. A second transverse sliding rail is provided outside the first transverse sliding rail. The interior of the second transverse sliding rail is slidably connected to the exterior of the limiting ring. The exterior of the connecting block is slidably connected to the interior of the first transverse sliding rail.

[0014] Preferably, a gripping groove is provided on one side of the inside of the concrete manhole cover, and the gripping groove is embedded inside the concrete manhole cover.

[0015] Preferably, a waterproof cover is provided at the upper end of the outer side of the first sector gear, and the waterproof cover is welded and fixed to the manhole cover support ring. The waterproof cover covers the outer side of the first sector gear, the first transmission block and the second sector gear.

[0016] This invention also provides another technical solution: a method for implementing a hinged hydraulic manhole cover for an integrated utility tunnel, comprising the following steps:

[0017] Step 1: When the hydraulic telescopic rod is pulled and started, the extension of the hydraulic telescopic rod can push the connecting block and the limiting ring. After the connecting block and the limiting ring are restricted within the sliding frame, the concrete manhole cover can be pushed.

[0018] Step 2: After the concrete manhole cover is pushed, it is restricted by the first transmission frame and the second transmission frame. One end of the first transmission frame rotates with the first support frame around the second rotating connecting shaft, and one end of the second transmission frame rotates with the second support frame around the first rotating connecting shaft.

[0019] Step 3: The limiting ring slides within the second transverse sliding rail and restricts the concrete manhole cover so that it remains horizontal after being pushed by the hydraulic telescopic rod. It moves horizontally while moving longitudinally upward, thereby opening and exposing the manhole cover support ring.

[0020] Step 4: The second transmission frame drives the first rotating connecting shaft to rotate clockwise, which can directly drive the fourth transmission blocks on both sides to rotate. The fourth transmission blocks drive the fifth transmission block to rotate clockwise through the second transmission belt. The fifth transmission block can directly drive the second sector gear at one end to rotate clockwise.

[0021] Step 5: The second sector gear drives the first sector gear on one side to rotate through meshing connection. The first sector gear can drive the first transmission block at one end to rotate. The first transmission block drives the third transmission block to rotate after being driven by the first transmission belt.

[0022] Step Six: The rotation of the third transmission block can drive the anti-detachment frame to rotate. The rotation of the anti-detachment frame can unfold to one side outside the recessed cavity. The unfolding of the anti-detachment frame can drive the limiting net to wrap around the lower end of the manhole cover support ring.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. This invention features structural receiving frames on both sides inside the manhole cover support ring. Each of the two structural receiving frames has a recessed cavity, and each of the two recessed cavities contains an anti-detachment frame. When the concrete manhole cover is pushed open by the extension of a hydraulic telescopic rod, the first rotating connecting shaft rotates during the opening process. This rotation, driven by the second and first transmission belts, causes the anti-detachment frames to flip. The flipping of the anti-detachment frames causes the limiting net to rotate. The simultaneous rotation of the anti-detachment frames on both sides wraps around the lower end of the manhole cover support ring, directly restricting the interior of the support ring and preventing items carried by maintenance personnel from falling out. Furthermore, during the repositioning of the concrete manhole cover, the two anti-detachment frames are reset and housed within the recessed cavities. The overall structure facilitates maintenance by personnel.

[0025] 2. In this invention, two second support frames are rotatably connected to one end of a second transmission frame via a first rotating connecting shaft. A second return spring is provided on both sides of the outer surface of the first rotating connecting shaft. The other end of the first transmission frame is rotatably connected to the first support frame via the second rotating connecting shaft, and a first return spring is provided on both sides of the outer surface of the second rotating connecting shaft. When the concrete manhole cover is actually extended by the hydraulic telescopic rod and pushed open, the elasticity of the first and second return springs assists in the extension and retraction of the hydraulic telescopic rod, thus helping the concrete manhole cover unfold, improving the unfolding efficiency of the concrete manhole cover, and reducing the extension and retraction strength of the hydraulic telescopic rod. Attached Figure Description

[0026] Figure 1 This is a perspective view of the overall external structure of the present invention;

[0027] Figure 2 This is a cross-sectional view of the internal structure of the manhole cover support ring of the present invention;

[0028] Figure 3 This is a schematic diagram of the manhole cover support ring transmission structure of the present invention;

[0029] Figure 4 For the present invention Figure 3 Enlarged view of a portion of region A in the middle;

[0030] Figure 5 This is a schematic diagram of the internal structure of the sliding frame of the present invention;

[0031] Figure 6 For the present invention Figure 5 Enlarged view of a portion of region B in the middle.

[0032] In the diagram: 1. Manhole cover support ring; 2. Concrete manhole cover; 3. Grabbing groove; 4. Structural receiving frame; 5. Recessed cavity; 6. Anti-fall frame; 7. Restriction net; 8. Waterproof cover; 9. Hydraulic telescopic rod; 10. Sliding frame; 11. First transverse sliding rail; 12. First transmission block; 13. Second transmission block; 14. Third transmission block; 15. First transmission belt; 16. First sector gear; 17. First transmission frame; 18. Second transmission frame; 19. First support frame; 20. First return spring; 21. Second return spring; 22. Second support frame; 23. Second sector gear; 24. Fourth transmission block; 25. Second transmission belt; 26. Fifth transmission block; 27. Second transverse sliding rail; 28. Restriction ring; 29. ​​Connecting block; 30. First rotating connecting shaft; 31. Second rotating connecting shaft. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] To address the issue raised in Chinese Patent CN211257083U regarding the automatic hydraulic manhole cover for integrated utility tunnels, where items carried by maintenance personnel can easily fall off during the opening of the cover and inspection of the drainage holes, and the lack of a restraining structure to contain these items, thus hindering maintenance, please refer to [the relevant documentation / reference needed]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment provides the following technical solution:

[0035] A hinged hydraulic manhole cover for integrated utility tunnels includes a manhole cover support ring 1, with a concrete manhole cover 2 mounted on the upper part of the outer side of the support ring 1; it also includes structural receiving frames 4, which are disposed on both sides of the lower part of the inner side of the support ring 1. Each of the two structural receiving frames 4 has a recessed cavity 5 inside, and an anti-fall-off frame 6 is provided on one side of each recessed cavity 5. A restraining net 7 is provided on one side of the anti-fall-off frame 6, and the outer side of the restraining net 7 is fixedly connected to the anti-fall-off frame 6 by bolts. A third transmission block 14 is provided at the lower end of one side of the anti-fall-off frame 6, and a second transmission block 13 is provided at the upper end of the third transmission block 14. One end of both the second transmission block 13 and the third transmission block 14 is rotatably connected to one side of the inner side of the structural receiving frame 4. A second transmission frame 18 is provided in the middle inside the manhole cover support ring 1. Second support frames 22 are provided on both sides of the second transmission frame 18, and the second support frames 22 and the second transmission frame 18 are rotatably connected via a first rotating connecting shaft 30. Fourth transmission blocks 24 are provided on both sides of the first rotating connecting shaft 30, and the fourth transmission blocks 24 and the first rotating connecting shaft 30 are integrally formed. A fifth transmission block 26 is provided on one side of the fourth transmission block 24, and the fifth transmission block 26 and the fourth transmission block 24 are connected by a second transmission belt 25. A second sector gear 23 is provided at one end of the fifth transmission block 26, and a first sector gear 16 is provided on one side of the outer side of the second sector gear 23. The first sector gear 16 is externally meshed with the second sector gear 23. The first sector gear 16 is rotatably connected to the inner wall of the manhole cover support ring 1 via the first transmission block 12. The first transmission block 12, the second transmission block 13, and the third transmission block 14 are connected by the first transmission belt 15. One end of the second transmission frame 18 is provided with the first transmission frame 17, and the first transmission frame 17 and the second transmission frame 18 are an integral structure. Both sides of the outer side of one end of the first transmission frame 17 are provided with the first support frame 19, and the first support frame 19 and the first transmission frame 17 are rotatably connected by the second rotating connecting shaft 31. The first support frame 19 is located on one side of the lower end of the concrete manhole cover 2, and the concrete manhole cover 2 is welded and fixed to the first support frame 19. The second support... The support frame 22 is welded and fixed to the inner wall of the manhole cover support ring 1. The concrete manhole cover 2 is pushed open by the extension of the hydraulic telescopic rod 9. During the opening process, the first rotating connecting shaft 30 will rotate. The rotation of the first rotating connecting shaft 30 can be driven by the second transmission belt 25 and the first transmission belt 15 to drive the anti-fall frame 6 to flip. The flipping of the anti-fall frame 6 can drive the limiting net 7 to rotate. The anti-fall frames 6 on both sides rotate at the same time to wrap the lower end of the manhole cover support ring 1. The wrapping can directly restrict the inside of the manhole cover support ring 1 and prevent maintenance personnel from falling off their personal items. In addition, during the resetting of the concrete manhole cover 2, the two anti-fall frames 6 can be reset and housed in the recessed cavity 5. The overall structure is convenient for maintenance personnel to carry out maintenance.

[0036] To address the issue of the difficulty in opening existing manhole covers due to their weight, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This embodiment provides the following technical solution:

[0037] Two second return springs 21 are provided on both sides of the outer side of the first rotating connecting shaft 30. The two second return springs 21 are located on both sides of the second transmission frame 18 and between the second support frame 22, respectively. The two ends of the second return springs 21 are welded and fixed to the second transmission frame 18 and the second support frame 22, respectively. Two first return springs 20 are provided on both sides of the outer side of the second rotating connecting shaft 31. The two first return springs 20 are located on both sides of the first transmission frame 17 and between the first support frame 19, respectively. The two ends of the first return springs 20 are welded and fixed to the first transmission frame 17 and the first support frame 19, respectively. A hydraulic telescopic rod 9 is provided at the upper end of one of the structural receiving frames 4. The hydraulic telescopic rod 9 is located between the concrete manhole cover 2 and the structural receiving frame 4. The lower end of the hydraulic telescopic rod 9 is fixedly connected to the upper end of the structural receiving frame 4 by bolts. A connecting block 29 is provided at the telescopic end of the hydraulic telescopic rod 9. A limiting ring 28 is provided on the outside of the connecting block 29. The limiting ring 28, the connecting block 29 and the hydraulic telescopic rod 9 are welded and fixed. A sliding frame 10 is provided and welded to the lower end of the concrete manhole cover 2. A first transverse sliding rail 11 is provided inside the sliding frame 10, and a second transverse sliding rail 27 is provided outside the first transverse sliding rail 11. The interior of the second transverse sliding rail 27 is slidably connected to the exterior of the limiting ring 28. The exterior of the connecting block 29 is slidably connected to the interior of the first transverse sliding rail 11. A gripping groove 3 is provided on one side inside the concrete manhole cover 2 and is embedded inside the concrete manhole cover 2. A waterproof cover 8 is provided on the upper end of the exterior of the first sector gear 16 and is welded to the manhole cover support ring 1. The waterproof cover 8 covers the exterior of the first sector gear 16, the first transmission block 12, and the second sector gear 23. When the hydraulic telescopic rod 9 extends and pushes the concrete manhole cover 2 to open, the elasticity of the first return spring 20 and the second return spring 21 can assist the extension and retraction of the hydraulic telescopic rod 9, assisting in the unfolding of the concrete manhole cover 2, improving the unfolding efficiency of the concrete manhole cover 2, and reducing the extension and retraction strength of the hydraulic telescopic rod 9.

[0038] To better demonstrate the operation process of the hinged hydraulic manhole cover for integrated utility tunnels, this embodiment proposes an implementation method for the hinged hydraulic manhole cover used in integrated utility tunnels, including the following steps:

[0039] Step 1: When the hydraulic telescopic rod 9 is pulled and started, the extension of the hydraulic telescopic rod 9 can push the connecting block 29 and the limiting ring 28. After the connecting block 29 and the limiting ring 28 are restricted within the sliding frame 10, the concrete manhole cover 2 can be pushed.

[0040] Step 2: After the concrete manhole cover 2 is pushed, it is restricted by the first transmission frame 17 and the second transmission frame 18. One end of the first transmission frame 17 rotates with the first support frame 19 around the second rotating connecting shaft 31, and one end of the second transmission frame 18 rotates with the second support frame 22 around the first rotating connecting shaft 30.

[0041] Step 3: The limiting ring 28 slides within the second transverse sliding rail 27 and restricts the concrete manhole cover 2 so that it remains horizontal after being pushed by the hydraulic telescopic rod 9. It moves horizontally while moving vertically upward, thereby opening and exposing the manhole cover support ring 1.

[0042] Step 4: The second transmission frame 18 drives the first rotating connecting shaft 30 to rotate clockwise, which can directly drive the fourth transmission blocks 24 on both sides to rotate. The fourth transmission blocks 24 drive the fifth transmission block 26 to rotate clockwise through the second transmission belt 25. The fifth transmission block 26 can directly drive the second sector gear 23 at one end to rotate clockwise.

[0043] Step 5: The second sector gear 23 drives the first sector gear 16 on one side to rotate through meshing connection. The first sector gear 16 can drive the first transmission block 12 at one end to rotate. The first transmission block 12 drives the third transmission block 14 to rotate after being driven by the first transmission belt 15.

[0044] Step 6: The rotation of the third transmission block 14 can drive the anti-falling frame 6 to rotate. The rotation of the anti-falling frame 6 can unfold on one side outside the recessed cavity 5. The flipping and unfolding of the anti-falling frame 6 can drive the limiting net 7 to wrap around the lower end of the inside of the well cover support ring 1.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hinged hydraulic manhole cover for integrated utility tunnels, comprising a manhole cover support ring (1), wherein a concrete manhole cover (2) is provided at the upper end of the outer side of the manhole cover support ring (1), characterized in that... ； It also includes structural receiving frames (4), which are set on both sides of the lower end of the manhole cover support ring (1). The two structural receiving frames (4) are each provided with a recessed cavity (5). An anti-falling frame (6) is provided on one side of the recessed cavity (5). A limiting net (7) is provided on one side of the anti-falling frame (6). The outside of the limiting net (7) is fixedly connected to the anti-falling frame (6) by bolts. A third transmission block (14) is provided at the lower end of one side of the anti-falling frame (6). A second transmission block (13) is provided at the upper end of the third transmission block (14). One end of the second transmission block (13) and the third transmission block (14) are rotatably connected to one side of the structural receiving frame (4). The manhole cover support ring (1) is located inside the manhole cover support ring (1). A second transmission frame (18) is provided in the middle, and a second support frame (22) is provided on both sides of the second transmission frame (18). The second support frame (22) and the second transmission frame (18) are rotatably connected by a first rotating connecting shaft (30). A fourth transmission block (24) is provided on both sides of the first rotating connecting shaft (30), and the fourth transmission block (24) and the first rotating connecting shaft (30) are an integral structure. A fifth transmission block (26) is provided on one side of the fourth transmission block (24), and the fifth transmission block (26) and the fourth transmission block (24) are connected by a second transmission belt (25). A second sector gear (23) is provided at one end of the fifth transmission block (26). 3) A first sector gear (16) is provided on one side of the exterior, and the exterior of the first sector gear (16) meshes with the exterior of the second sector gear (23). The first sector gear (16) is rotatably connected to the inner wall of the manhole cover support ring (1) through a first transmission block (12). The first transmission block (12), the second transmission block (13), and the third transmission block (14) are connected by a first transmission belt (15). A first transmission frame (17) is provided at one end of the second transmission frame (18), and the first transmission frame (17) and the second transmission frame (18) are an integral structure. A first support frame (19) is provided on both sides of the exterior of one end of the first transmission frame (17), and the first support frame (19) and the first transmission frame (18) are connected by a first transmission belt (15). 17) are rotatably connected by a second rotating connecting shaft (31). The first support frame (19) is located on one side of the lower end of the concrete manhole cover (2), and the concrete manhole cover (2) is welded and fixed to the first support frame (19). The second support frame (22) is welded and fixed to the inner wall of the manhole cover support ring (1). A hydraulic telescopic rod (9) is provided at the upper end of one of the structural receiving frames (4). The hydraulic telescopic rod (9) is located between the concrete manhole cover (2) and the structural receiving frame (4). The lower end of the hydraulic telescopic rod (9) is fixedly connected to the upper end of the structural receiving frame (4) by bolts. A connecting block (29) is provided at the telescopic end of the hydraulic telescopic rod (9). A limiting ring (28) is provided on the outside of the connecting block (29).The limiting ring (28), connecting block (29), and hydraulic telescopic rod (9) are welded and fixed. A sliding frame (10) is provided on the outside of the connecting block (29), and the sliding frame (10) is welded and fixed to the lower end of the concrete manhole cover (2). A first transverse sliding rail (11) is provided inside the sliding frame (10), and a second transverse sliding rail (27) is provided outside the first transverse sliding rail (11). The inside of the second transverse sliding rail (27) is slidably connected to the outside of the limiting ring (28), and the outside of the connecting block (29) is slidably connected to the inside of the first transverse sliding rail (11).

2. A hinged hydraulic manhole cover for integrated utility tunnels according to claim 1, characterized in that: A second return spring (21) is provided on both sides of the outside of the first rotating connecting shaft (30). The two second return springs (21) are respectively located on both sides of the second transmission frame (18) and between the second support frame (22). The two ends of the second return spring (21) are welded and fixed to the second transmission frame (18) and the second support frame (22) respectively. A first return spring (20) is provided on both sides of the outside of the second rotating connecting shaft (31). The two first return springs (20) are respectively located on both sides of the first transmission frame (17) and between the first support frame (19). The two ends of the first return spring (20) are welded and fixed to the first transmission frame (17) and the first support frame (19) respectively.

3. A hinged hydraulic manhole cover for integrated utility tunnels according to claim 2, characterized in that: A gripping groove (3) is provided on one side of the inside of the concrete manhole cover (2), and the gripping groove (3) is embedded inside the concrete manhole cover (2).

4. A hinged hydraulic manhole cover for integrated utility tunnels according to claim 3, characterized in that: A waterproof cover (8) is provided on the upper part of the first sector gear (16), and the waterproof cover (8) is welded and fixed to the well cover support ring (1). The waterproof cover (8) is wrapped around the first sector gear (16), the first transmission block (12) and the second sector gear (23).

5. The implementation method of the hinged hydraulic manhole cover for integrated utility tunnel as described in claim 4, characterized in that: Includes the following steps: Step 1: When the hydraulic telescopic rod (9) is pulled and started, the extension of the hydraulic telescopic rod (9) can push the connecting block (29) and the limiting ring (28). After the connecting block (29) and the limiting ring (28) are restricted in the sliding frame (10), the concrete manhole cover (2) can be pushed. Step 2: After the concrete manhole cover (2) is pushed, it is restricted by the first transmission frame (17) and the second transmission frame (18). One end of the first transmission frame (17) rotates with the first support frame (19) around the second rotating connecting shaft (31), and one end of the second transmission frame (18) rotates with the second support frame (22) around the first rotating connecting shaft (30). Step 3: The limiting ring (28) slides within the second transverse sliding rail (27) and restricts the concrete manhole cover (2) so that it remains horizontal after being pushed by the hydraulic telescopic rod (9), and moves horizontally while moving vertically upward, thereby opening and exposing the manhole cover support ring (1). Step 4: The second transmission frame (18) drives the first rotating connecting shaft (30) to rotate clockwise, which can directly drive the fourth transmission blocks (24) on both sides to rotate. The fourth transmission block (24) drives the fifth transmission block (26) to rotate clockwise through the second transmission belt (25). The fifth transmission block (26) can directly drive the second sector gear (23) at one end to rotate clockwise. Step 5: The second sector gear (23) drives the first sector gear (16) on one side to rotate through meshing connection. The first sector gear (16) can drive the first transmission block (12) at one end to rotate. The first transmission block (12) drives the third transmission block (14) to rotate after being driven by the first transmission belt (15). Step 6: The rotation of the third transmission block (14) can drive the anti-fall frame (6) to rotate. The rotation of the anti-fall frame (6) can unfold on one side outside the recessed cavity (5). The anti-fall frame (6) can flip and unfold to drive the limiting net (7) to wrap around the lower end of the well cover support ring (1).

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