Municipal engineering drainage well lid structure

Abstract

The municipal engineering drainage well lid structure comprises a well lid body, a trigger hole is formed in the well lid body, a water pressure trigger plate is arranged in the trigger hole in a sealed and sliding mode, a water pressure trigger area is formed in the area, located above the water pressure trigger plate, of the well lid body, and an elastic trigger assembly is movably arranged below the well lid body. A trigger linkage assembly is connected between the water pressure trigger plate and the elastic trigger assembly, a water drainage hole is formed in the well lid body, a barrier plate is movably arranged in the water drainage hole, and a linkage control assembly for controlling the barrier plate to be opened is connected between the elastic trigger assembly and the barrier plate. The system has the following advantages and effects that automatic drainage can be achieved so as to ensure the personal safety of municipal personnel and the timeliness of drainage, better implementability is achieved, and losses and inconvenience caused by accumulated water are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of municipal engineering, in particular to a drainage manhole cover structure for municipal engineering. Background Art

[0002] In municipal engineering, manhole covers are an indispensable component. Manhole covers cover the openings of various pipes and facilities such as sewers, drainage systems, and power lines to protect people's lives and property. The south is an area with abundant rainfall, especially in the summer, so many low-lying roads in the south will frequently accumulate water in the summer. In order to reduce the accumulation of water on the road, municipal workers often lift the manhole covers to reduce the accumulation of water on the road by increasing the drainage speed. When water accumulates in a large area and in many places in the city, it is impossible to solve the drainage problem in a timely and rapid manner by manually lifting the manhole covers, and the operation method of the staff wading through the water also has certain safety hazards. Based on the above problems, the present invention was born. Summary of the Invention

[0003] The purpose of the present invention is to provide a municipal engineering drainage manhole cover structure, which can realize automatic drainage to ensure the personal safety of municipal personnel and the timeliness of drainage, has better feasibility and reduces the losses and inconvenience caused by water accumulation.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a municipal engineering drainage manhole cover structure, including a manhole cover body, a trigger hole is provided on the manhole cover body, a water pressure trigger plate is sealed and slidably arranged in the trigger hole, the manhole cover body is located above the water pressure trigger plate to form a water pressure trigger area, an elastic trigger component is movably arranged under the manhole cover body, a trigger linkage component is connected between the water pressure trigger plate and the elastic trigger component, a drain hole is provided on the manhole cover body, a blocking plate is movably arranged in the drain hole, and a linkage control component for controlling the opening of the blocking plate is connected between the elastic trigger component and the blocking plate.

[0005] By adopting the above technical solution, when the accumulated water on the road surface floods the top of the manhole cover body and the depth gradually deepens, the pressure on the top of the manhole cover body from the accumulated water gradually increases. As the water pressure increases, the water pressure trigger plate is triggered to operate. After the water pressure trigger plate is activated, it triggers the elastic trigger component to operate by triggering the linkage component. The elastic trigger component after the operation controls the barrier plate to switch to the open state through the linkage control component, thereby realizing the automatic opening of the drainage hole when water accumulates. The drainage speed of the accumulated water is increased through the drainage hole to reduce the water accumulation on the road surface, thereby realizing the automatic drainage of the structure. This structure does not require personnel to operate on site, ensuring the personal safety of personnel while improving the timeliness of drainage, making the structure more feasible and reducing the losses and inconvenience caused by water accumulation.

[0006] It is further configured as follows: a plurality of trigger holes are provided, and the water pressure trigger plate is provided in each trigger hole; each water pressure trigger plate is connected to the elastic trigger component via the trigger linkage component; an error-touch component is provided between the trigger linkage component and the elastic trigger component to prevent the two from forming an error-touch linkage; when each water pressure trigger plate is triggered, the trigger linkage component and the elastic trigger component are linked via the error-touch component.

[0007] By adopting the above technical solution, by providing a plurality of trigger holes and water pressure trigger plates and cooperating with a false trigger assembly, the risk of accidental opening of the drain hole due to the activation of a single or a small number of water pressure trigger plates during daily use of the structure is reduced. This avoids the safety hazard caused by accidental opening of the drain hole, making the structure safer and more reliable. Only when all water pressure trigger plates are activated can the false trigger assembly and the elastic trigger assembly be linked to each other to initiate the subsequent action.

[0008] It is further configured as follows: the elastic trigger assembly includes a fixed tube fixedly arranged at the bottom of the manhole cover body, a trigger rod that is lifted and slidably arranged in the fixed tube, and a retaining spring that fixedly connects the trigger rod and the manhole cover body.

[0009] By adopting the above technical solution, this design structure enables the trigger rod to have two states under the action of the retaining spring, namely a stressed state and a non-stressed state, thereby giving the elastic trigger component a trigger function.

[0010] It is further configured as follows: the trigger linkage assembly includes multiple trigger linkage rods, and the multiple trigger linkage rods are arranged in a one-to-one correspondence with multiple water pressure trigger plates. Each of the trigger linkage rods includes a first rod segment hinged at one end to the bottom of the corresponding water pressure trigger plate and a second rod segment hinged to the first rod segment. The second rod segment is connected to the lower end of the trigger rod, and the water pressure trigger plate reciprocates toward the trigger hole.

[0011] By adopting the above technical solution, the water pressure trigger plate drives the trigger rod to move through the cooperation of the first rod segment and the second rod segment after the action, thereby realizing the linkage between the water pressure trigger plate and the trigger rod, with a simple structure and low production cost.

[0012] It is further configured as follows: multiple water pressure trigger plates are distributed around the outer circumference of the trigger rod, the false touch component is arranged between the second rod segment and the trigger rod and is located directly below the trigger rod, the false touch component includes a ball head fixedly connected to the lower end of the trigger rod, a sleeve rolling with the ball head, a balance rod connected to the ball head and located below the sleeve, and a balance spring sleeved on the balance rod, the sleeve is fixedly connected to multiple second rod segments, one end of the balance spring abuts against the balance rod, and the other end abuts against each second rod segment.

[0013] By adopting the above-mentioned technical solution, with the surrounding distribution and the rolling arrangement of the centrally located false trigger assembly, when a single or a small number of hydraulic trigger plates are actuated, the deflection and rotational travel generated by the rolling structure between the ball head and the housing offsets the movement of the local hydraulic trigger plates. This prevents the trigger lever from actuating due to the triggering of the single or a small number of hydraulic trigger plates, thereby preventing false triggering. Only after all hydraulic trigger plates are actuated does the trigger linkage lever actuate the false trigger assembly through linear motion, rather than local deflection and rotational travel, to actuate the trigger lever. After a single or a small number of hydraulic trigger plates have moved, a balancing spring is provided to reset the hydraulic trigger plate. This ensures that each hydraulic trigger plate, when subjected to force, maintains a reliable sealing and sliding relationship with the trigger hole, effectively addressing subsequent water accumulation conditions.

[0014] The further configuration is as follows: the blocking plate is hinged to the manhole cover body, and the linkage control assembly includes a first linkage hook that moves with the blocking plate, a second linkage hook that is hinged to the manhole cover body and can be engaged with the first linkage hook, a torsion spring that drives the second linkage hook to separate from the first linkage hook, a retaining rod that is slidably arranged on the fixed tube and reciprocates between the second linkage hook and the trigger rod, and a trigger groove arranged on the outer wall of the trigger rod, the movement path of the trigger groove overlaps with the orthographic projection of the end face of the retaining rod, when one end of the retaining rod abuts against the trigger rod and the other end abuts against the second linkage hook, the first linkage hook and the second linkage hook are in an engaged state, and at the same time the blocking plate closes the drain hole and the torsion spring drives the second linkage hook to rotate toward the side of the retaining rod.

[0015] By adopting the above technical solution, when the force on the water pressure trigger plate is greater than the elastic force of the retaining spring, the trigger rod is driven downward by the action of the trigger linkage assembly and the trigger slot is moved to a position corresponding to the end face of the retaining rod. The retaining rod, which has lost the counteracting force of the trigger rod, drives the second linkage hook toward one side of the retaining rod under the action of the torsion spring and causes the retaining rod to enter the trigger slot, so that the second linkage hook is separated from the first linkage hook, thereby realizing the trigger opening operation of the sewer hole.

[0016] It is further configured as follows: an annular protective frame is provided near the outer ring of the manhole cover body for lifting and sliding, and a protective linkage component is provided between the protective frame and the blocking plate. When the blocking plate is switched to the open state, the protective frame is triggered by the protective linkage component to rise above the upper surface of the manhole cover body.

[0017] By adopting this technical solution, the barrier plate is impacted by the accumulated water during the transition from closed to open state, and the protective linkage component triggers the protective frame to rise above the upper surface of the manhole cover body. This eliminates the need for an additional drive source to trigger the protective frame, and achieves a linkage between the manhole and the protective frame. The protective frame prevents people from accidentally wading into the manhole, providing a safety feature and making the mechanism safer to operate. It also filters out large pieces of trash, preventing them from clogging the manhole.

[0018] It is further configured that: the protective linkage component includes a driving spring that drives the protective frame to move upward, a linkage arm that is rotatably arranged on the manhole cover body, a positioning groove that is arranged on the protective frame and for the linkage arm to rotate into, and a reversing assembly that is arranged between the blocking plate and the linkage arm. The rotating surface formed by the rotation of the linkage arm is perpendicular to the movement direction of the protective frame. When the linkage arm rotates into the positioning groove, the protective frame does not protrude from the upper surface of the manhole cover body and the driving spring is in a stretched state.

[0019] By adopting the above technical solution, the barrier plate is deflected and rotated by the impact force from the accumulated water during the process of switching from the closed state to the open state. The direction of the force is changed by the provided reversing component, so that the deflected rotational force can drive the linkage arm to rotate and rotate out of the positioning groove to unlock the protective frame, so that the protective frame moves upward to above the upper surface of the manhole cover body under the action of the driving spring.

[0020] It is further configured as follows: the reversing assembly includes a reversing block that moves with the blocking plate and has a reversing inclined surface, and a matching inclined surface that is arranged on the linkage arm and matches the reversing inclined surface; the blocking plate cooperates with the reversing assembly to drive the linkage arm out of the positioning groove.

[0021] By adopting the above technical solution, the blocking plate drives the reversing block to move toward the linkage arm, and the direction of force is changed by the cooperation between the reversing inclined surface and the matching inclined surface, thereby achieving the driving purpose of the linkage arm, with a simple structure and low production cost.

[0022] In summary, the present invention has the following beneficial effects: the present invention can realize automatic drainage to ensure the personal safety of municipal personnel and the timeliness of drainage, has better feasibility and reduces the losses and inconvenience caused by water accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a structural diagram of an embodiment; Figure 2 A structural diagram of another perspective of the embodiment; Figure 3 is a cross-sectional view of an embodiment; Figure 4 for Figure 3 Enlarged view of part A in the middle; Figure 5 This is a structural diagram of the linkage control component in the embodiment; Figure 6 Schematic diagram of the structure of the mis-touch component in the embodiment; Figure 7 This is a schematic diagram of the structure in which the barrier plate is opened in the embodiment; Figure 8 Schematic diagram of the structure of the protective linkage component in the embodiment.

[0024] In the figure: 1. Manhole cover body; 2. Trigger hole; 3. Water pressure trigger plate; 4. Water pressure trigger area; 5. Elastic trigger assembly; 51. Fixed tube; 52. Trigger rod; 53. Retaining spring; 6. Trigger linkage rod; 61. First rod section; 62. Second rod section; 7. Drain hole; 8. Blocking plate; 9. Linkage control assembly; 91. First linkage hook; 92. Second linkage hook; 93. Retaining rod; 94. Trigger slot; 10. Mis-touch assembly; 101. Ball head; 102. Outer sleeve; 103. Balance rod; 104. Balance spring; 11. Protective frame; 12. Protective linkage member; 121. Drive spring; 122. Linkage arm; 123. Positioning slot; 124. Reversing assembly; 1241. Reversing ramp; 1242. Reversing block; 1243. Matching ramp. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] refer to Figures 1 to 8 A municipal engineering drainage manhole cover structure includes a manhole cover body 1, a trigger hole 2 is formed on the manhole cover body 1, and a water pressure trigger plate 3 is sealed and slidably installed in the trigger hole 2. The area of ​​the manhole cover body 1 above the water pressure trigger plate 3 forms a water pressure trigger zone 4. An elastic trigger component 5 is movably installed below the manhole cover body 1, and a trigger linkage component is connected between the water pressure trigger plate 3 and the elastic trigger component 5. The manhole cover body 1 is provided with drainage holes 7, and the number of drainage holes 7 is preferably two. A blocking plate 8 is hinged in each drainage hole 7. A linkage control component 9 for controlling the opening of the blocking plates 8 is connected between the elastic trigger component 5 and the two blocking plates 8. A sealing ring is provided between the water pressure trigger plate 3 and the trigger hole 2, and the sealing ring is fixedly set on the outer peripheral wall of the water pressure trigger plate 3.

[0027] The number of trigger holes 2 is set to be multiple and the water pressure trigger plate 3 is provided in each trigger hole 2. Each water pressure trigger plate 3 is connected to the elastic trigger component 5 through the trigger linkage component. A false touch component 10 is provided between the trigger linkage component and the elastic trigger component 5 to prevent the two from forming a false touch linkage. When each water pressure trigger plate 3 is triggered, the trigger linkage component and the elastic trigger component 5 are linked through the false touch component 10.

[0028] The elastic trigger assembly 5 comprises a fixed tube 51 fixedly mounted at the center of the bottom of the manhole cover body 1, a trigger rod 52 that slides and rises within the fixed tube 51, and a retaining spring 53 with one end fixedly connected to the trigger rod 52 and the other end fixedly connected to the manhole cover body 1. The trigger linkage assembly includes multiple trigger linkage rods 6, each corresponding to a plurality of hydraulic trigger plates 3. Each trigger linkage rod 6 comprises a first rod segment 61, one end hinged to the bottom of the corresponding hydraulic trigger plate 3, and a second rod segment 62 hinged to the first rod segment 61. The second rod segment 62 is connected to the lower end of the trigger rod 52, causing the hydraulic trigger plate 3 to reciprocate toward the trigger hole 2.

[0029] Multiple hydraulic trigger plates 3 are distributed around the periphery of the trigger rod 52. The false trigger assembly 10 is disposed between the second rod segment 62 and the trigger rod 52 and directly below the trigger rod 52. The false trigger assembly 10 includes a ball head 101 fixedly connected to the lower end of the trigger rod 52, a housing 102 that rolls with the ball head 101, a balance rod 103 fixedly connected to the ball head 101 and located below the housing 102, and a balance spring 104 sleeved on the balance rod 103. The housing 102 is fixedly connected to the multiple second rod segments 62. One end of the balance spring 104 is fixedly connected to the balance rod 103, and the other end abuts each second rod segment 62.

[0030] The linkage control assembly 9 includes a first linkage hook 91 integrally mounted on the baffle plate 8, a second linkage hook 92 hinged to the bottom of the manhole cover body 1 via a rotating shaft and capable of engaging with the first linkage hook 91, a torsion spring that drives the second linkage hook 92 to separate from the first linkage hook 91, a retaining rod 93 slidably mounted on the fixing tube 51 and reciprocating between the second linkage hook 92 and the trigger rod 52, and a trigger slot 94 defined in the outer wall of the trigger rod 52. The motion path of the trigger slot 94 overlaps with the orthographic projection of the end face of the retaining rod 93. When one end of the retaining rod 93 abuts the trigger rod 52 and the other end abuts the second linkage hook 92, the first linkage hook 91 and the second linkage hook 92 are engaged, the baffle plate 8 closes the drain hole 7, and the torsion spring drives the second linkage hook 92 to rotate toward the retaining rod 93. The torsion spring is mounted on the rotating shaft, with one end fixedly connected to the manhole cover body 1 and the other end fixedly connected to the second linkage hook 92.

[0031] An annular protective frame 11 is provided near the outer ring of the manhole cover body 1 for lifting and sliding. A protective linkage component 12 is provided between the protective frame 11 and the blocking plate 8. When the blocking plate 8 is switched to the open state, the protective frame 11 is triggered by the protective linkage component 12 to rise above the upper surface of the manhole cover body 1; the number of protective linkage components 12 is one or two groups.

[0032] The protective linkage assembly 12 includes a drive spring 121 that drives the protective frame 11 upward, a linkage arm 122 that is rotatably mounted on the manhole cover body 1, a positioning slot 123 provided in the protective frame 11 for the linkage arm 122 to rotate into, and a reversing assembly 124 disposed between the baffle plate 8 and the linkage arm 122. The rotational plane formed by the rotation of the linkage arm 122 is perpendicular to the direction of movement of the protective frame 11. When the linkage arm 122 rotates into the positioning slot 123, the protective frame 11 does not protrude from the upper surface of the manhole cover body 1, and the drive spring 121 is in a stretched state. One end of the drive spring 121 is fixedly connected to the protective frame 11, and the other end is fixedly connected to the manhole cover body 1.

[0033] The reversing assembly 124 includes a reversing block 1242 integrally mounted on the blocking plate 8 and having a reversing bevel 1241, and a mating bevel 1243 disposed on the linkage arm 122 and mating with the reversing bevel 1241. The blocking plate 8 cooperates with the reversing assembly 124 to drive the linkage arm 122 out of the positioning slot 123. The installation structure of the manhole cover body 1 is different from that of a conventional flip manhole cover. It is a placement structure that allows the manhole cover body 1 to be directly placed within the manhole cover frame.

[0034] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A drainage manhole cover structure for a municipal engineering project, comprising a manhole cover body (1), characterized in that: The manhole cover body (1) is provided with a trigger hole (2), a water pressure trigger plate (3) is sealed and slidably arranged in the trigger hole (2), the manhole cover body (1) is located in an area above the water pressure trigger plate (3) to form a water pressure trigger area (4), an elastic trigger component (5) is movably arranged below the manhole cover body (1), a trigger linkage component is connected between the water pressure trigger plate (3) and the elastic trigger component (5), a water discharge hole (7) is provided on the manhole cover body (1), a blocking plate (8) is movably arranged in the water discharge hole (7), and a linkage control component (9) for controlling the opening of the blocking plate (8) is connected between the elastic trigger component (5) and the blocking plate (8).

2. The municipal engineering drainage manhole cover structure according to claim 1, characterized in that: The trigger holes (2) are arranged in a plurality and the water pressure trigger plate (3) is provided in each trigger hole (2). Each water pressure trigger plate (3) is connected to the elastic trigger component (5) via the trigger linkage component. A false touch component (10) is provided between the trigger linkage component and the elastic trigger component (5) to prevent the two from forming a false touch linkage. When each water pressure trigger plate (3) is triggered, the false touch component (10) causes the trigger linkage component to form a linkage with the elastic trigger component (5).

3. The municipal engineering drainage manhole cover structure according to claim 2, characterized in that: The elastic trigger assembly (5) comprises a fixed tube (51) fixedly arranged at the bottom of the manhole cover body (1), a trigger rod (52) arranged in the fixed tube (51) for lifting and sliding, and a retaining spring (53) fixedly connecting the trigger rod (52) and the manhole cover body (1).

4. The municipal engineering drainage manhole cover structure according to claim 3, characterized in that: The trigger linkage assembly comprises a plurality of trigger linkage rods (6), and the plurality of trigger linkage rods (6) are arranged in a one-to-one correspondence with a plurality of water pressure trigger plates (3). Each of the trigger linkage rods (6) comprises a first rod section (61) hinged at one end to the bottom of the corresponding water pressure trigger plate (3) and a second rod section (62) hinged to the first rod section (61). The second rod section (62) is connected to the lower end of the trigger rod (52), and the water pressure trigger plate (3) reciprocates toward the trigger hole (2).

5. The municipal engineering drainage manhole cover structure according to claim 4, characterized in that: A plurality of water pressure trigger plates (3) are distributed around the outer periphery of the trigger rod (52); the false touch assembly (10) is arranged between the second rod segment (62) and the trigger rod (52) and is located directly below the trigger rod (52); the false touch assembly (10) comprises a ball head (101) fixedly connected to the lower end of the trigger rod (52); a jacket (102) rollingly engaged with the ball head (101); a balance rod (103) connected to the ball head (101) and located below the jacket (102); and a balance spring (104) sleeved on the balance rod (103); the jacket (102) is fixedly connected to the plurality of second rod segments (62); one end of the balance spring (104) abuts against the balance rod (103) and the other end abuts against each second rod segment (62).

6. The municipal engineering drainage manhole cover structure according to claim 3, characterized in that: The blocking plate (8) is hinged to the manhole cover body (1), and the linkage control assembly (9) comprises a first linkage hook (91) that moves with the blocking plate (8), a second linkage hook (92) that is hinged to the manhole cover body (1) and can be engaged with the first linkage hook (91), a torsion spring that drives the second linkage hook (92) to separate from the first linkage hook (91), a retaining rod (93) that is slidably arranged on the fixing tube (51) and reciprocates between the second linkage hook (92) and the trigger rod (52), and a device A trigger groove (94) is arranged on the outer side wall of the trigger rod (52), and the movement path of the trigger groove (94) overlaps with the orthographic projection of the end face of the retaining rod (93). When one end of the retaining rod (93) abuts against the trigger rod (52) and the other end abuts against the second linkage hook (92), the first linkage hook (91) and the second linkage hook (92) are in a locked state, the blocking plate (8) closes the water outlet (7), and the torsion spring drives the second linkage hook (92) to rotate toward the side of the retaining rod (93).

7. The municipal engineering drainage manhole cover structure according to claim 6, characterized in that: The manhole cover body (1) is provided with an annular protective frame (11) in a position close to its outer ring, which is lifted and slidable. A protective linkage component (12) is provided between the protective frame (11) and the blocking plate (8). When the blocking plate (8) is switched to an open state, the protective frame (11) is triggered by the protective linkage component (12) to rise to a position higher than the upper surface of the manhole cover body (1).

8. The municipal engineering drainage manhole cover structure according to claim 7, characterized in that: The protective linkage component (12) comprises a driving spring (121) for driving the protective frame (11) to move upward, a linkage arm (122) rotatably arranged on the manhole cover body (1), a positioning groove (123) arranged on the protective frame (11) and for the linkage arm (122) to rotate into, and a reversing assembly (124) arranged between the blocking plate (8) and the linkage arm (122); a rotating surface formed by the rotation of the linkage arm (122) is perpendicular to the movement direction of the protective frame (11); when the linkage arm (122) rotates into the positioning groove (123), the protective frame (11) does not protrude from the upper surface of the manhole cover body (1) and the driving spring (121) is in a stretched state.

9. The municipal engineering drainage manhole cover structure according to claim 8, characterized in that: The reversing assembly (124) comprises a reversing block (1242) that moves with the blocking plate (8) and has a reversing inclined surface (1241), and a matching inclined surface (1243) that is arranged on the linkage arm (122) and matches the reversing inclined surface (1241). The blocking plate (8) cooperates with the reversing assembly (124) to drive the linkage arm (122) to disengage from the positioning groove (123).

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