Anti-falling type invisible pavement well lid for sidewalk

Abstract

The utility model belongs to the technical field of well lids, and particularly relates to an anti-falling type hidden pavement well lid for a sidewalk. According to the technical scheme, the anti-falling type invisible pavement well lid for the sidewalk comprises a well frame, face bricks are laid in the well frame, an operation hole used for lifting the well frame is formed in the front side of the well frame, a rear side transmission mechanism is installed on the rear side of the well frame, and an exposed force transmission block is arranged between the input end of the rear side transmission mechanism and the rear sides of the face bricks; side face transmission mechanisms are installed on the left side and the right side of the well frame, the output end of the rear side transmission mechanism is connected with a steering transmission mechanism, the output end of the steering transmission mechanism is connected with a dowel bar, and the other end of the dowel bar is connected with the input ends of the side face transmission mechanisms. An anti-skid steel bar is arranged between the output end of the side face transmission mechanism and the left side or the right side of the face brick. The utility model provides an anti-falling hidden pavement manhole cover for a sidewalk. When the manhole cover is lifted from one side, face bricks are prevented from loosening or stripping under the action of gravity.

Description

Technical Field

[0001] This utility model belongs to the field of manhole cover technology, and specifically relates to an anti-fall-off invisible paving manhole cover for sidewalks. Background Technology

[0002] With rapid urban development and a significant increase in urbanization rates, new construction projects are beginning to decline. There is a growing number of projects focused on improving the quality and efficiency of old urban areas and urban renewal projects, especially road renovations. Early infrastructure development was immature, and urban road planning and the municipal road network system were not synchronized. Coupled with accumulated natural wear and tear and various loads, the pavement and ancillary systems of the sidewalks built in earlier years have aged. This is especially true for the concealed manhole covers on sidewalks, which involve fire protection, water supply, and electrical systems, requiring frequent inspection and use. Combined with traffic loads and water erosion, many concealed manhole covers have become severely loose, misaligned, detached, or even broken. This not only affects the city's appearance but also creates significant difficulties for existing sidewalk passage and drainage. Failure to repair or address these issues promptly will inevitably lead to safety hazards and damage to underground facilities and equipment.

[0003] Currently, many projects in old urban areas and street renovation projects use commercially available manhole covers for sidewalk concealed paving, employing a process of manhole cover + cement grout + mortar + paving stone. After completion, the bonding effect between the manhole cover and the cementitious material is uncertain; secondly, the paving bricks and the manhole frame cannot be completely tightly adhered, leading to water seepage and contamination or erosion later on; especially for manholes that require repeated opening for inspection or use, external forces can cause the entire paving bricks to loosen and peel off, significantly reducing the lifespan of the manhole cover. Furthermore, loose paving bricks may be struck by objects, causing injury to workers. To ensure construction quality and extend the lifespan of the paved manhole covers, a new type of anti-detachment concealed paving manhole cover for sidewalks is proposed.

[0004] Existing technology: Currently, all paved manhole covers are factory-made cast iron filler covers. These covers only serve as containers for paving materials. The bottom surface of the cover is a ribbed cast iron plate, while the frame is a smooth cast iron plate. During construction, mortar is loosely laid up to the height of the frame, then the surface layer is covered with decorative stone and compacted with a rubber mallet. After completion, it is left to cure for one to two days before being opened to traffic.

[0005] In existing technologies, the bottom and sides of manhole covers are in direct contact with the paving mortar and cement paste. The smooth surface of the manhole cover results in poor bonding with the paving adhesive, always leaving a certain gap. If only subjected to vertical forces from pedestrians or other vertical forces, the manhole cover surface material can maintain adhesion for a relatively long time. However, for frequently opened manholes such as fire hydrants, water supply manholes, and power manholes, the increased external disturbance due to frequent opening and inspection causes the entire paving to be subjected to both upward vertical tension and downward gravitational forces, leading to loosening and peeling. Furthermore, existing technologies do not seal the contact surface between the manhole cover and the paving material, leaving micro-gaps. Later water erosion easily damages the bond between the two, affecting the lifespan of the manhole cover. Loose stones are also prone to water seepage, grouting, and even falling off, creating safety hazards. Utility Model Content

[0006] In order to solve the above-mentioned problems in the existing technology, the purpose of this utility model is to provide an anti-fall-off invisible paving manhole cover for sidewalks, which prevents the paving bricks from loosening or peeling off under the action of gravity when the manhole cover is lifted from one side.

[0007] The technical solution adopted in this utility model is as follows:

[0008] A type of anti-fall-off concealed paving manhole cover for sidewalks includes a manhole frame, with facing bricks paved inside the frame. An operating hole for lifting the manhole frame is provided on the front side of the frame. A rear transmission mechanism is installed on the rear side of the frame. An exposed force transmission block is provided between the input end of the rear transmission mechanism and the rear side of the facing bricks. Side transmission mechanisms are installed on both the left and right sides of the frame. A steering transmission mechanism is connected to the output end of the rear transmission mechanism, and a force transmission rod is connected to the output end of the steering transmission mechanism. The other end of the force transmission rod is connected to the input end of the side transmission mechanism. An anti-slip steel strip is provided between the output end of the side transmission mechanism and the left or right side of the facing bricks.

[0009] This utility model features an exposed force transmission block on the rear side of the manhole cover. When the manhole cover is pulled up from the front operating hole, the bricks inside the frame tend to move rearward under gravity. The exposed force transmission block presses against the rear transmission mechanism, and the steering transmission mechanism transmits the power from the rear transmission mechanism to the side transmission mechanism after a 90° turn. The side transmission mechanism presses against the anti-slip steel strip, thus pressing the side of the brick tightly and preventing further loosening or peeling.

[0010] This utility model utilizes the gravity of the bricks, and through the transmission action of the exposed force transmission block, rear transmission mechanism, steering transmission mechanism, force transmission rod, and side transmission mechanism, the side of the bricks is pressed tightly by the anti-slip steel strip, ensuring the stability of the bricks when the manhole cover is lifted from one side, and preventing the bricks in the manhole cover that needs to be opened frequently from becoming loose or falling off.

[0011] As a preferred embodiment of this utility model, the rear transmission mechanism includes a rear transmission box, which is installed on the rear side of the well frame. A rear guide rod is sleeved on the rear transmission box. One end of the rear guide rod extending into the rear transmission box is connected to a rear spring, and the other end of the rear spring is connected to a rear wedge-shaped slider. The rear wedge-shaped slider is slidably connected inside the rear transmission box. The exposed force transmission block has a wedge-shaped surface at its end away from the facing brick, and the wedge-shaped surface of the exposed force transmission block contacts the wedge surface of the rear wedge-shaped slider. The exposed force transmission block is perpendicular to the rear guide rod. When the exposed force transmission block moves towards the rear transmission box, it pushes the rear wedge-shaped slider to slide, and the rear guide rod moves towards extending out of the rear transmission box.

[0012] When the manhole cover is lifted from the front, the facing brick tilts and, under the influence of gravity, presses against the exposed force transmission block. The exposed force transmission block pushes the rear wedge-shaped slider to slide to the left or right via the wedge-shaped surface. The rear wedge-shaped slider, through the rear spring, pushes the rear guide rod to extend. The rear guide rod transmits power to the steering transmission mechanism.

[0013] In a preferred embodiment of this utility model, the rear transmission box is provided with a rear guide hole, and the exposed force transmission block is fitted into the rear guide hole. The rear guide hole guides the exposed force transmission block to prevent it from deflecting.

[0014] As a preferred embodiment of this utility model, the side transmission mechanism includes a side transmission box, which is installed on the left or right side of the well frame. A side guide rod is sleeved on the side transmission box. One end of the side guide rod extending into the side transmission box is connected to a side spring, and the other end of the side spring is connected to a side wedge-shaped slider. The side wedge-shaped slider is slidably connected inside the side transmission box. A wedge-shaped surface is provided at the end of the force transmission rod away from the steering transmission mechanism, and the wedge-shaped surface of the force transmission rod contacts the wedge surface of the side wedge-shaped slider. The force transmission rod is perpendicular to the side guide rod. When the force transmission rod moves towards the side transmission box, it pushes the side wedge-shaped slider to slide, and the side guide rod moves towards extending out of the side transmission box.

[0015] The steering transmission mechanism drives the force transmission rod to move, and the force transmission rod pushes the side wedge slider to slide to the left or right through the wedge surface. The side wedge slider pushes the side guide rod to extend through the side spring. When the side guide rod extends, the side of the brick is pressed firmly by the anti-slip steel strip to prevent the brick from loosening or peeling off.

[0016] As a preferred embodiment of this utility model, the side transmission box is provided with a side guide hole, and the force transmission rod is sleeved in the side guide hole. The side guide hole guides the force transmission rod to prevent it from deflecting.

[0017] As a preferred embodiment of the present invention, the steering transmission mechanism includes a corner cavity disposed at the corner of the well frame, the corner cavity being filled with hydraulic oil, a rear sealing sliding plate being disposed on the side of the corner cavity near the rear transmission mechanism, the output end of the rear transmission mechanism being in contact with the rear sealing sliding plate, a side sealing sliding plate being disposed on the side of the corner cavity near the side transmission mechanism, and one end of the force transmission rod being fixed to the side sealing sliding plate.

[0018] When the rear guide rod pushes the rear sealing sliding plate to move, the hydraulic oil pushes the side sealing sliding plate to move forward, thereby moving the force transmission rod forward. By filling the corner chamber with hydraulic oil, the power can be steered 9°, converting the power to move the bricks backward into the power for the anti-slip steel strip to press the bricks against the side.

[0019] As a preferred embodiment of this utility model, a sealing water-stop strip is provided between the facing brick and the well frame. An anti-slip steel strip presses the side of the facing brick tightly through the sealing water-stop strip, and an exposed guide block passes through the sealing water-stop strip. The well cover of this utility model is a commonly available cast iron filled well cover. A 3mm wide rubber sealing water-stop strip is used around the top of the well cover to prevent external water erosion.

[0020] As a preferred embodiment of this utility model, a guide groove is provided on the side of the well frame, and an anti-slip steel strip is fitted inside the guide groove. The guide groove can guide and limit the anti-slip steel strip, ensuring that the anti-slip steel strip can press against the side of the brick in the correct position.

[0021] As a preferred embodiment of this utility model, the well frame is provided with several well cover ribs, and several facing bricks are laid in the area enclosed between the well cover ribs and the well frame. The well cover ribs further prevent the facing bricks from slipping off.

[0022] In a preferred embodiment of this utility model, the number of the exposed force transmission block, the rear transmission mechanism, the steering transmission mechanism, the force transmission rod, the side transmission mechanism, and the anti-slip steel strip are all two, with the two anti-slip steel strips respectively located on the left and right sides of the brick. The anti-slip steel strips on both sides clamp the brick from the left and right sides respectively, ensuring the stability of the brick when the manhole cover is lifted from the front.

[0023] The beneficial effects of this utility model are as follows:

[0024] This utility model utilizes the gravity of the bricks, and through the transmission action of the exposed force transmission block, rear transmission mechanism, steering transmission mechanism, force transmission rod, and side transmission mechanism, the side of the bricks is pressed tightly by the anti-slip steel strip, ensuring the stability of the bricks when the manhole cover is lifted from one side, and preventing the bricks in the manhole cover that needs to be opened frequently from becoming loose or falling off. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the rear transmission mechanism;

[0027] Figure 3 This is a sectional view of the rear transmission mechanism.

[0028] Figure 4 This is a schematic diagram of the side transmission mechanism;

[0029] Figure 5 This is a sectional view of the side transmission mechanism.

[0030] In the diagram: 1-Well frame; 2-Facing brick; 3-Rear transmission mechanism; 4-Exposed force transmission block; 5-Side transmission mechanism; 6-Steering transmission mechanism; 7-Force transmission rod; 8-Anti-slip steel strip; 9-Sealing water-stop strip; 11-Operating hole; 12-Well cover rib; 31-Rear transmission box; 32-Rear guide rod; 33-Rear spring; 34-Rear wedge slider; 51-Side transmission box; 52-Side guide rod; 53-Side spring; 54-Side wedge slider; 61-Hydraulic oil; 62-Rear sealing sliding plate; 63-Side sealing sliding plate. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the present invention can be combined with each other.

[0033] like Figures 1-5As shown, the anti-fall-off concealed paving manhole cover for sidewalks in this embodiment includes a manhole frame 1, with facing bricks 2 paved inside the manhole frame 1. An operation hole 11 for lifting the manhole frame 1 is provided on the front side of the manhole frame 1. A rear transmission mechanism 3 is installed on the rear side of the manhole frame 1. An exposed force transmission block 4 is provided between the input end of the rear transmission mechanism 3 and the rear side of the facing brick 2. Side transmission mechanisms 5 are installed on both the left and right sides of the manhole frame 1. A steering transmission mechanism 6 is connected to the output end of the rear transmission mechanism 3. A force transmission rod 7 is connected to the output end of the steering transmission mechanism 6. The other end of the force transmission rod 7 is connected to the input end of the side transmission mechanism 5. An anti-slip steel strip 8 is provided between the output end of the side transmission mechanism 5 and the left or right side of the facing brick 2.

[0034] The manhole cover of this invention has an exposed force transmission block 4 on the rear side. When the manhole cover is pulled up from the operating hole 11 on the front side, the brick 2 inside the manhole frame 1 tends to move backward under the action of gravity. The exposed force transmission block 4 presses against the rear transmission mechanism 3. The steering transmission mechanism 6 transmits the power of the rear transmission mechanism 3 to the side transmission mechanism 5 through the force transmission rod 7 after turning 90°. The side transmission mechanism 5 presses against the anti-slip steel strip 8, so that the anti-slip steel strip 8 can press the side of the brick 2 tightly, preventing the brick 2 from loosening or peeling off further.

[0035] This utility model utilizes the gravity of the brick 2, and through the transmission action of the exposed force transmission block 4, the rear transmission mechanism 3, the steering transmission mechanism 6, the force transmission rod 7, and the side transmission mechanism 5, the side of the brick 2 is pressed tightly by the anti-slip steel strip 8, ensuring the stability of the brick 2 when the manhole cover is lifted from one side, and avoiding the situation where the brick 2 in the manhole cover that needs to be opened frequently is loose or peeled off.

[0036] Specifically, such as Figure 2 and Figure 3 As shown, the rear transmission mechanism 3 includes a rear transmission box 31, which is installed on the rear side of the well frame 1. A rear guide rod 32 is sleeved on the rear transmission box 31. One end of the rear guide rod 32, which extends into the rear transmission box 31, is connected to a rear spring 33. The other end of the rear spring 33 is connected to a rear wedge slider 34. The rear wedge slider 34 is slidably connected inside the rear transmission box 31. The exposed force transmission block 4 has a wedge-shaped surface at its end away from the facing brick 2. The wedge-shaped surface of the exposed force transmission block 4 contacts the wedge surface of the rear wedge slider 34. The exposed force transmission block 4 is perpendicular to the rear guide rod 32. When the exposed force transmission block 4 moves toward the rear transmission box 31, it pushes the rear wedge slider 34 to slide, and the rear guide rod 32 moves toward the direction of extending out of the rear transmission box 31.

[0037] When the manhole cover is lifted from the front, the facing brick 2 tilts and, under the action of gravity, presses against the exposed force transmission block 4. The exposed force transmission block 4 pushes the rear wedge slider 34 to slide to the left or right through the wedge-shaped surface. The rear wedge slider pushes the rear guide rod 32 to extend through the rear spring 33. The rear guide rod 32 transmits power to the steering transmission mechanism 6.

[0038] The rear transmission box 31 is provided with a rear guide hole, and the exposed force transmission block 4 is fitted into the rear guide hole. The rear guide hole guides the exposed force transmission block 4 to prevent it from deflecting.

[0039] Specifically, such as Figure 4 and Figure 5 As shown, the side transmission mechanism 5 includes a side transmission box 51, which is installed on the left or right side of the well frame 1. A side guide rod 52 is sleeved on the side transmission box 51. One end of the side guide rod 52 extending into the side transmission box 51 is connected to a side spring 53, and the other end of the side spring 53 is connected to a side wedge slider 54. The side wedge slider 54 is slidably connected inside the side transmission box 51. The end of the force transmission rod 7 away from the steering transmission mechanism 6 is provided with a wedge-shaped surface, and the wedge-shaped surface of the force transmission rod 7 contacts the wedge surface of the side wedge slider 54. The force transmission rod 7 is perpendicular to the side guide rod 52. When the force transmission rod 7 moves toward the side transmission box 51, it pushes the side wedge slider 54 to slide, and the side guide rod 52 moves toward the direction of extending out of the side transmission box 51.

[0040] The steering transmission mechanism 6 pushes the force transmission rod 7 to move. The force transmission rod 7 pushes the side wedge slider 54 to slide to the left or right through the wedge surface. The side wedge slider pushes the side guide rod 52 to extend through the side spring 53. When the side guide rod 52 extends, the side of the brick 2 is pressed tightly by the anti-slip steel strip 8 to prevent the brick 2 from loosening or peeling off.

[0041] The side transmission box 51 is provided with a side guide hole, and the force transmission rod 7 is sleeved in the side guide hole. The side guide hole guides the force transmission rod 7 to prevent the force transmission rod 7 from deflecting.

[0042] Specifically, the steering transmission mechanism 6 includes a corner cavity located at the corner of the well frame 1, which is filled with hydraulic oil 61. A rear sealing sliding plate 62 is provided on the side of the corner cavity near the rear transmission mechanism 3. The output end of the rear transmission mechanism 3 is in contact with the rear sealing sliding plate 62. A side sealing sliding plate 63 is provided on the side of the corner cavity near the side transmission mechanism 5. One end of the force transmission rod 7 is fixed to the side sealing sliding plate 63.

[0043] When the rear guide rod 32 pushes the rear sealing sliding plate 62 to move, the hydraulic oil 61 pushes the side sealing sliding plate 63 to move forward, thereby moving the force transmission rod 7 forward. By loading the hydraulic oil 61 into the corner cavity, the power can be steered by 9°, converting the power to move the brick 2 backward into the power for the anti-slip steel strip 8 to press the brick 2 against the side.

[0044] Furthermore, a sealing water-stop strip 9 is provided between the facing brick 2 and the well frame 1. The anti-slip steel strip 8 presses the side of the facing brick 2 through the sealing water-stop strip 9, and the exposed guide block passes through the sealing water-stop strip 9. The well cover of this utility model is a common cast iron filled well cover on the market. The top of the well cover is covered with a 3mm wide rubber sealing water-stop strip 9 to prevent external water erosion.

[0045] The well frame 1 has a guide groove on its side, and the anti-slip steel strip 8 is fitted inside the guide groove. The guide groove can guide and limit the anti-slip steel strip 8, ensuring that the anti-slip steel strip 8 can press against the side of the brick 2 in the correct position.

[0046] The manhole frame 1 is provided with several manhole cover ribs 12, and several facing bricks 2 are laid in the area enclosed between the manhole cover ribs 12 and the manhole frame 1. The manhole cover ribs 12 further prevent the facing bricks 2 from slipping off.

[0047] The exposed force transmission block 4, rear transmission mechanism 3, steering transmission mechanism 6, force transmission rod 7, side transmission mechanism 5, and anti-slip steel strip 8 are all in pairs, with the two anti-slip steel strips 8 located on the left and right sides of the facing brick 2 respectively. The anti-slip steel strips 8 on both sides clamp the facing brick 2 from the left and right sides respectively, ensuring the stability of the facing brick 2 when the manhole cover is lifted from the front.

[0048] Construction process: Inspection of manhole covers upon arrival (including waterstop strips, rear transmission mechanism 3, side transmission mechanism 5, anti-slip steel strips 8) → Cleaning and leveling around the manhole → Grouting around the manhole → Installation of manhole covers → Grouting of manhole covers → Mortar laying → Applying grout to facing bricks 2 → Laying facing bricks 2 and compacting with a rubber hammer → Enclosure and curing → Opening to traffic.

[0049] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A type of anti-fall-off concealed manhole cover for sidewalks, characterized in that: The well frame (1) is paved with bricks (2). An operating hole (11) for lifting the well frame (1) is provided on the front side of the well frame (1). A rear transmission mechanism (3) is installed on the rear side of the well frame (1). An exposed force transmission block (4) is provided between the input end of the rear transmission mechanism (3) and the rear side of the brick (2). Side transmission mechanisms (5) are installed on both the left and right sides of the well frame (1). A steering transmission mechanism (6) is connected to the output end of the rear transmission mechanism (3). A force transmission rod (7) is connected to the output end of the steering transmission mechanism (6). The other end of the force transmission rod (7) is connected to the input end of the side transmission mechanism (5). An anti-slip steel strip (8) is provided between the output end of the side transmission mechanism (5) and the left or right side of the brick (2).

2. The anti-fall-off concealed pavement manhole cover for sidewalks according to claim 1, characterized in that: The rear transmission mechanism (3) includes a rear transmission box (31), which is installed on the rear side of the well frame (1). A rear guide rod (32) is sleeved on the rear transmission box (31). One end of the rear guide rod (32) extending into the rear transmission box (31) is connected to a rear spring (33), and the other end of the rear spring (33) is connected to a rear wedge slider (34). The rear wedge slider (34) is slidably connected to the rear transmission box. (31) Inside, the exposed force transmission block (4) is provided with a wedge-shaped surface at one end away from the brick (2), and the wedge-shaped surface of the exposed force transmission block (4) is in contact with the wedge surface of the rear wedge slider (34); the exposed force transmission block (4) is perpendicular to the rear guide rod (32), and when the exposed force transmission block (4) moves toward the rear transmission box (31), it pushes the rear wedge slider (34) to slide, and the rear guide rod (32) moves toward the direction of extending out of the rear transmission box (31).

3. The anti-fall-off concealed pavement manhole cover for sidewalks according to claim 2, characterized in that: The rear transmission box (31) is provided with a rear guide hole, and the exposed force transmission block (4) is sleeved in the rear guide hole.

4. The anti-fall-off concealed pavement manhole cover for sidewalks according to claim 1, characterized in that: The side transmission mechanism (5) includes a side transmission box (51), which is installed on the left or right side of the well frame (1). A side guide rod (52) is sleeved on the side transmission box (51). One end of the side guide rod (52) extending into the side transmission box (51) is connected to a side spring (53), and the other end of the side spring (53) is connected to a side wedge slider (54). The side wedge slider (54) is slidably connected inside the side transmission box (51). A wedge-shaped surface is provided at the end of the force transmission rod (7) away from the steering transmission mechanism (6). The wedge-shaped surface of the force transmission rod (7) contacts the wedge surface of the side wedge slider (54). The force transmission rod (7) is perpendicular to the side guide rod (52). When the force transmission rod (7) moves toward the side transmission box (51), it pushes the side wedge slider (54) to slide. The side guide rod (52) moves toward the side transmission box (51).

5. A non-detachable concealed pavement manhole cover for sidewalks according to claim 4, characterized in that: The side transmission box (51) is provided with a side guide hole, and the force transmission rod (7) is sleeved in the side guide hole.

6. The anti-fall-off concealed pavement manhole cover for sidewalks according to claim 1, characterized in that: The steering transmission mechanism (6) includes a corner cavity located at the corner of the well frame (1), which is filled with hydraulic oil (61). A rear sealing sliding plate (62) is provided on the side of the corner cavity near the rear transmission mechanism (3). The output end of the rear transmission mechanism (3) is in contact with the rear sealing sliding plate (62). A side sealing sliding plate (63) is provided on the side of the corner cavity near the side transmission mechanism (5). One end of the force transmission rod (7) is fixed on the side sealing sliding plate (63).

7. The anti-fall-off concealed pavement manhole cover for sidewalks according to claim 1, characterized in that: A sealing waterstop strip (9) is provided between the brick (2) and the well frame (1). The anti-slip steel strip (8) presses the side of the brick (2) through the sealing waterstop strip (9), and the exposed guide block passes through the sealing waterstop strip (9).

8. A non-detachable concealed pavement manhole cover for sidewalks according to claim 1, characterized in that: The well frame (1) has a guide groove on its side, and the anti-slip steel strip (8) is fitted inside the guide groove.

9. A non-detachable concealed pavement manhole cover for sidewalks according to claim 1, characterized in that: The well frame (1) is provided with several well cover ribs (12), and several bricks (2) are laid in the area enclosed between the well cover ribs (12) and the well frame (1).

10. A non-detachable concealed pavement manhole cover for sidewalks according to any one of claims 1 to 9, characterized in that: The number of the exposed force transmission block (4), the rear transmission mechanism (3), the steering transmission mechanism (6), the force transmission rod (7), the side transmission mechanism (5), and the anti-slip steel strip (8) are all two, with the two anti-slip steel strips (8) being located on the left and right sides of the brick (2).

Images