Locking device for municipal road well lid

Abstract

The utility model discloses a locking device of a municipal road well lid, which relates to the technical field of composite well lids and comprises a well lid base, a well lid body is hinged to the upper end inside the well lid base, an annular supporting table is fixedly connected inside the bottom end of the well lid base, a mounting frame is mounted at the upper end of the annular supporting table, and fixing components are symmetrically mounted inside the mounting frame. A filter screen is fixedly connected to the inner wall of the mounting frame, a connecting block is fixedly connected to the side wall of the well lid body, locking assemblies are symmetrically mounted in the connecting block, a fixing block is fixedly connected to the side wall of the well lid base, unlocking blocks are symmetrically and fixedly connected to the two ends of the fixing block, and unlocking assemblies are mounted in the unlocking blocks. By the adoption of the structure, sundries such as garbage and sludge in rainwater can be filtered out, the sundries are prevented from entering a drainage pipeline, the drainage pipeline is prevented from being blocked, the filter screen can be conveniently detached, complex tools or equipment do not need to be used, and therefore the difficulty and time cost of maintenance work are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite manhole covers, and particularly relates to a locking device for a municipal road manhole cover. Background Art

[0002] Municipal roads refer to urban roads, which are important public roads that connect various areas within the city and are connected to roads outside the city, facilitating the daily life and travel of urban residents. Municipal road manhole covers are an important part of urban infrastructure. They are spread all over the streets and alleys of the city, protecting underground pipes and facilities, such as drainage wells, cable wells, water meter wells, etc. There are many types of manhole covers, the most common ones are cast iron manhole covers, composite manhole covers, stainless steel manhole covers, fiberglass manhole covers and plastic manhole covers. These manhole covers are made of different materials, each with its own characteristics and applicable scenarios. For example, cast iron manhole covers are one of the most common manhole covers in municipal engineering, and are widely used in places such as roads, gardens, and squares; composite manhole covers have anti-slip and anti-theft characteristics while ensuring load-bearing capacity, and are not easily infiltrated by rainwater and sewage; stainless steel manhole covers are corrosion-resistant, strong and durable.

[0003] Publication number "CN219753307U" is a manhole cover locking structure, which belongs to the field of composite manhole cover technology, including a bracket, a manhole cover body is installed in the bracket, and a plurality of locking openings are equidistantly opened on the inner surface of the bracket, a T-slot is opened through the center of the upper surface of the manhole cover body, a connecting plate with a handle is placed in the T-slot, and a plurality of guide blocks are equidistantly installed on the lower surface of the manhole cover body, and a locking rod that can be reset and moved outward is movably installed between two corresponding guide blocks, and the outer end of the locking rod is inserted into the corresponding locking opening, and a plurality of pull ropes with hooks are equidistantly fixedly connected to the lower surface of the connecting plate, and the pull ropes are connected to the corresponding locking rods through the hooks. After lifting the connecting plate, the pull ropes can be used to pull the corresponding locking rods inward to disengage the locking opening. The utility model has no blind spots during the repair and maintenance of the locking structure, which effectively solves the problem of inconvenience in the inspection and maintenance of the locking structure in the prior art.

[0004] Although the above-mentioned utility model does not have a blind spot during the repair and maintenance of the locking structure, and effectively solves the problem of the inconvenience of the locking structure in the prior art during repair and maintenance, debris such as garbage, leaves, mud and sand in the rainwater will directly enter the well and the drainage pipe. These debris will gradually accumulate, causing pipe blockage and affecting drainage efficiency. Especially under extreme weather conditions such as heavy rain, a large amount of debris will pour into the well, and the blockage problem will be more serious. In addition, the debris in the well and the pipe needs to be cleaned and maintained regularly, which increases the investment of manpower and material resources. At the same time, frequent blockages and cleaning work may also cause equipment damage, further increasing maintenance costs. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a locking device for a municipal road manhole cover to solve the problem that garbage, leaves, mud and sand in rainwater directly enter the manhole and drainage pipes. These debris will gradually accumulate, causing pipe blockage and affecting drainage efficiency.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A locking device for a manhole cover of a municipal road comprises a manhole cover base, a manhole cover body is hingedly connected to the upper end of the manhole cover base, a functional lifting hole is opened at the upper end of the manhole cover body, an annular support platform is fixedly connected to the bottom end of the manhole cover base, an installation frame is installed on the upper end of the annular support platform, the installation frame is plugged into the inside of the manhole cover base, a fixing component is symmetrically installed inside the installation frame, a filter screen is fixedly connected to the inner wall of the installation frame, a connecting block is fixedly connected to the side wall of the manhole cover body, a locking component is symmetrically installed inside the connecting block, a fixing block is fixedly connected to the side wall of the manhole cover base, unlocking blocks are symmetrically fixedly connected to both ends of the fixing block, and an unlocking component is installed inside the unlocking block;

[0008] The fixing assembly includes a second return spring, a moving block, a sliding block, a pushing block, a positioning block and a fixing column, a second accommodating cavity is symmetrically opened inside the installation frame, one end of the second accommodating cavity is fixedly connected to the second return spring, the other end of the second return spring is fixedly connected to the moving block, the upper end of the moving block is fixedly connected to the sliding block, the end of the sliding block away from the moving block is fixedly connected to the pushing block, the bottom end of the moving block is fixedly connected to the positioning block, the end of the positioning block away from the moving block extends out of the bottom of the installation frame, the end of the positioning block away from the second return spring is fixedly connected to the fixing column, the upper end of the installation frame is symmetrically opened with a sliding groove, the sliding groove and the second accommodating cavity are connected The receiving cavity is connected, the slide groove and the slider are slidably connected, the bottom end of the installation frame is symmetrically provided with movable grooves, the movable groove and the positioning block are slidably connected, the upper end of the installation frame is symmetrically provided with slide grooves, the slide groove is connected with the second receiving cavity, the slide groove and the slider are slidably connected, the bottom end of the installation frame is symmetrically provided with movable grooves, the movable groove and the positioning block are slidably connected, which can filter out garbage, sludge and other debris in rainwater to prevent debris from entering the drainage pipe, thereby avoiding blockage of the drainage pipe, and the filter net can be easily disassembled without the use of complex tools or equipment, thereby reducing the difficulty and time cost of maintenance work.

[0009] As a preferred technical scheme, the locking assembly includes a first return spring, a movable plate, a locking block and an inclined surface, a first accommodating cavity is symmetrically opened inside the connecting block, one end of the first accommodating cavity is fixedly connected to the first return spring, the other end of the first return spring is fixedly connected to the movable plate, the end of the movable plate away from the first return spring is fixedly connected to the locking block, the end of the locking block away from the movable plate extends out of the side end of the connecting block, the bottom end of the locking block is set as an inclined surface, a connecting groove is opened at the upper end of the fixed block, the connecting groove and the connecting block are plug-in, locking grooves are symmetrically opened inside the connecting groove, the locking groove and the locking block are snap-connected, which can ensure that the manhole cover is firmly fixed on the wellhead and effectively prevent the manhole cover from loosening or shifting due to wind, vibration or human factors, which not only reduces the risk of pedestrians or vehicles falling into the well, but also reduces the possibility of traffic accidents caused by displacement of the manhole cover.

[0010] As a preferred technical solution, the unlocking assembly includes a built-in hole, a third return spring, a connecting column and a pressing block. A built-in hole is opened at one end of the unlocking block, one end of the built-in hole is fixedly connected to the third return spring, the other end of the third return spring is fixedly connected to the pressing block, the pressing block and the built-in hole are slidably connected, one end of the pressing block close to the third return spring is fixedly connected to the connecting column, the third return spring is sleeved on the outside of the connecting column, one end of the connecting column away from the press block extends toward the inside of the locking groove, one end of the connecting column away from the press block is fixedly connected to a push plate, the push plate and the locking groove are slidably connected, and the manhole cover can be quickly opened in emergency situations, such as maintenance, rescue or inspection, so that relevant personnel can quickly enter the well and perform necessary operations, reducing the time and effort required to open the manhole cover.

[0011] In summary, the utility model mainly has the following beneficial effects:

[0012] First, in the present invention, the push block is pushed to make the slider slide inside the slide groove, the slider drives the moving block and the positioning block to move, and then the installation frame is plugged into the inside of the manhole cover base, and the installation frame is combined with the annular support platform, so that the positioning block is inserted into the positioning groove, the push block is released, the second reset spring is reset, the moving block drives the positioning block to rebound, and the fixed column is returned to its position and connected with the fixed groove, so that the installation of the filter is completed, which can filter out garbage, sludge and other debris in rainwater and prevent debris from entering the drainage pipe, thereby avoiding clogging of the drainage pipe, and when the filter needs to be cleaned, replaced or repaired, it can be easily disassembled without the need to use complex tools or equipment, thereby reducing the difficulty and time cost of maintenance work;

[0013] Second, in the present invention, the manhole cover body is combined with the manhole cover base, and the connecting block is inserted into the connecting groove. During the insertion process, the extrusion force applies pressure to the bottom inclined surface of the retracting block, so that the locking block drives the movable plate to compress the first reset spring. When the locking block moves to the locking groove, the first reset spring is reset, the movable plate rebounds, and the locking block pops out to be clamped and fixed with the locking groove, thereby completing the locking of the manhole cover body. It can ensure that the manhole cover is firmly fixed on the wellhead, and effectively prevent the manhole cover from loosening or shifting due to wind, vibration or human factors, which not only reduces the risk of pedestrians or vehicles falling into the well, but also reduces the possibility of traffic accidents caused by the displacement of the manhole cover, thereby greatly improving public safety and reducing the risk of the manhole cover being stolen.

[0014] Third, in the utility model, the push block is pressed, the connecting column drives the push plate to move, and the third reset spring is compressed, and the push plate pushes the locking block, so that the locking block drives the moving plate to compress the first reset spring, and the locking block and the locking groove are connected at the same time, and then the manhole cover body is opened upward, the connecting block and the connecting groove are connected, and the push block is released at the same time, the third reset spring is reset, and the push block pops out, completing the unlocking of the manhole cover body. In emergency situations, such as maintenance, rescue or inspection, the manhole cover can be quickly opened, so that relevant personnel can quickly enter the well and perform necessary operations, reducing the time and effort required to open the manhole cover, and maintenance personnel can quickly complete the unlocking operation, thereby starting maintenance or inspection work faster, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the filter screen of the utility model;

[0017] Figure 3 It is a cross-sectional three-dimensional structural schematic diagram of the fixing component of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the locking assembly of the utility model.

[0019] Figure numerals: 1, manhole cover base, 2, manhole cover body, 3, fixed block, 4, connecting groove, 5, connecting block, 6, first accommodating chamber, 7, locking assembly, 71, first return spring, 72, movable plate, 73, locking block, 74, inclined plane, 8, locking groove, 9, annular support, 10, installation frame, 11, filter screen, 12, second accommodating chamber, 13, fixed assembly, 131, second return spring, 132, movable block, 133, slider, 134, push block, 135, positioning block, 136, fixed column, 14, slide groove, 15, movable groove, 16, positioning groove, 17, fixed groove, 18, unlocking block, 19, unlocking assembly, 191, built-in hole, 192, third return spring, 193, connecting column, 194, press block, 20, push plate, 21, functional lifting hole. DETAILED DESCRIPTION

[0020] refer to Figures 1 to 4 , a locking device for a municipal road manhole cover described in this embodiment includes a manhole cover base 1, a manhole cover body 2 is hingedly connected to the upper end of the manhole cover base 1, a functional lifting hole 21 is opened at the upper end of the manhole cover body 2, an annular support platform 9 is fixedly connected to the bottom of the manhole cover base 1, an installation frame 10 is installed on the upper end of the annular support platform 9, the installation frame 10 is plugged into the inside of the manhole cover base 1, a fixing component 13 is symmetrically installed inside the installation frame 10, a filter screen 11 is fixedly connected to the inner wall of the installation frame 10, a connecting block 5 is fixedly connected to the side wall of the manhole cover body 2, a locking component 7 is symmetrically installed inside the connecting block 5, a fixing block 3 is fixedly connected to the side wall of the manhole cover base 1, unlocking blocks 18 are symmetrically fixedly connected to both ends of the fixing block 3, and an unlocking component 19 is installed inside the unlocking block 18;

[0021] The fixing assembly 13 includes a second return spring 131, a moving block 132, a slider 133, a push block 134, a positioning block 135 and a fixing column 136. The second accommodating chamber 12 is symmetrically provided inside the installation frame 10. The second return spring 131 is fixedly connected to one end of the second accommodating chamber 12, and the moving block 132 is fixedly connected to the other end of the second return spring 131. The upper end of the moving block 132 is fixedly connected to the slider 133, and the end of the slider 133 away from the moving block 132 is fixedly connected to the push block 134. The bottom end of the moving block 132 is fixedly connected to the positioning block 135. The end of the positioning block 135 away from the moving block 132 extends out of the bottom end of the installation frame 10, and the end of the positioning block 135 away from the second return spring 131 is fixedly connected to the fixing column 136. The upper end of the installation frame 10 is symmetrically provided with a slide groove 14, which is communicated with the second accommodating chamber 12, and the slide groove 14 is connected to the slider 133. For sliding connection, the bottom end of the installation frame 10 is symmetrically provided with moving grooves 15, and the moving grooves 15 and the positioning blocks 135 are slidingly connected. The upper end of the annular support platform 9 is symmetrically provided with positioning grooves 16, and the positioning grooves 16 and the positioning blocks 135 are movably connected. A fixed groove 17 is provided at one end inside the positioning groove 16, and the fixed groove 17 and the fixed column 136 are snap-connected. Push the push block 134 to make the slider 133 slide inside the slide groove 14, and the slider 133 drives the moving block 132 and the positioning block 135 to move, and then the installation frame 10 is plugged into the inside of the manhole cover base 1, and the installation frame 10 is merged with the annular support platform 9 at the same time, so that the positioning block 135 is inserted into the inside of the positioning groove 16, and the push block 134 is released. The second reset spring 131 is reset, and the moving block 132 drives the positioning block 135 to rebound. At the same time, the fixed column 136 returns to its position and snaps into the fixed groove 17 to complete the installation of the filter screen 11.

[0022] refer to Figure 4 The locking assembly 7 includes a first return spring 71, a movable plate 72, a locking block 73 and an inclined surface 74. A first accommodating cavity 6 is symmetrically opened inside the connecting block 5. One end of the first accommodating cavity 6 is fixedly connected to the first return spring 71, and the other end of the first return spring 71 is fixedly connected to the movable plate 72. The end of the movable plate 72 away from the first return spring 71 is fixedly connected to the locking block 73. The end of the locking block 73 away from the movable plate 72 extends out of the side end of the connecting block 5. The bottom end of the locking block 73 is set as an inclined surface 74. The upper end of the fixed block 3 is provided with a connecting groove 4, and the connecting groove 4 is connected to the connecting block 5. The connecting block 5 is plug-in, and locking grooves 8 are symmetrically opened inside the connecting groove 4. The locking groove 8 and the locking block 73 are snap-connected. The manhole cover body 2 and the manhole cover base 1 are merged, and the connecting block 5 is inserted into the connecting groove 4. During the insertion process, the extrusion force exerts pressure on the bottom end inclined surface 74 of the retracting block, so that the locking block 73 drives the moving plate 72 to compress the first return spring 71. When the locking block 73 moves to the locking groove 8, the first return spring 71 is reset, the moving plate 72 rebounds, and the locking block 73 pops out and is snap-connected and fixed with the locking groove 8, thereby completing the locking of the manhole cover body 2.

[0023] refer to Figure 4 The unlocking assembly 19 includes a built-in hole 191, a third return spring 192, a connecting column 193 and a pressing block 194. The unlocking block 18 has a built-in hole 191 at one end, and the third return spring 192 is fixedly connected to one end of the built-in hole 191. The other end of the third return spring 192 is fixedly connected to the pressing block 194. The pressing block 194 is slidably connected to the built-in hole 191. The end of the pressing block 194 close to the third return spring 192 is fixedly connected to the connecting column 193. The third return spring 192 is sleeved on the outside of the connecting column 193. The end of the connecting column 193 away from the pressing block 194 extends to the inside of the locking groove 8. The connecting column The end of 193 away from the pressing block 194 is fixedly connected with a push plate 20, and the push plate 20 is slidably connected to the locking groove 8. When the pressing block 194 is pressed, the connecting column 193 drives the push plate 20 to move, and at the same time the third return spring 192 is compressed, and the push plate 20 pushes the locking block 73, so that the locking block 73 drives the moving plate 72 to compress the first return spring 71, and at the same time the locking block 73 and the locking groove 8 are disconnected, and then the manhole cover body 2 is opened upward, the connecting block 5 and the connecting groove 4 are disconnected, and at the same time the pressing block 194 is released, the third return spring 192 is reset, and the pressing block 194 pops out, completing the unlocking of the manhole cover body 2.

[0024] Principle and advantages of use: First, push the push block 134 to make the slider 133 slide inside the slide groove 14, and the slider 133 drives the moving block 132 and the positioning block 135 to move, then plug the installation frame 10 into the inside of the manhole cover base 1, and at the same time merge the installation frame 10 with the annular support 9, so that the positioning block 135 is inserted into the positioning groove 16, release the push block 134, the second reset spring 131 resets, the moving block 132 drives the positioning block 135 to rebound, and at the same time the fixed column 136 returns to the fixed groove 1 7 is connected by clamping to complete the installation of the filter screen 11, and then the manhole cover body 2 and the manhole cover base 1 are combined, and the connecting block 5 is inserted into the connecting groove 4. During the insertion process, the extrusion force exerts pressure on the bottom end inclined surface 74 of the retracting block, so that the locking block 73 drives the moving plate 72 to compress the first return spring 71. When the locking block 73 moves to the locking groove 8, the first return spring 71 is reset, the moving plate 72 rebounds, and the locking block 73 pops out and is clamped and fixed with the locking groove 8, thereby completing the locking of the manhole cover body 2;

[0025] The utility model can filter out garbage, sludge and other debris in rainwater to prevent the debris from entering the drainage pipe, thereby avoiding blockage of the drainage pipe, and the filter screen 11 can be easily disassembled without the need to use complicated tools or equipment, thereby reducing the difficulty and time cost of maintenance work, and at the same time can effectively prevent the manhole cover from being opened or moved at will, thereby ensuring public safety, and enabling maintenance personnel to quickly and conveniently complete the operation when they need to enter the well for maintenance, inspection and the like.

Claims

1. A locking device for a municipal road manhole cover, comprising a manhole cover base (1), characterized in that: The upper end of the manhole cover base (1) is hinged with a manhole cover body (2), and a functional lifting hole (21) is opened at the upper end of the manhole cover body (2). The bottom end of the manhole cover base (1) is fixedly connected to an annular support platform (9), and an installation frame (10) is installed on the upper end of the annular support platform (9). The installation frame (10) is plugged into the inside of the manhole cover base (1), and a fixing component (13) is symmetrically installed inside the installation frame (10). The inner wall of the installation frame (10) is fixedly connected to a filter screen (11), and the side wall of the manhole cover body (2) is fixedly connected to a connecting block (5), and a locking component (7) is symmetrically installed inside the connecting block (5). The side wall of the manhole cover base (1) is fixedly connected to a fixing block (3), and unlocking blocks (18) are symmetrically fixedly connected at both ends of the fixing block (3), and an unlocking component (19) is installed inside the unlocking block (18); The fixing assembly (13) comprises a second return spring (131), a moving block (132), a slider (133), a push block (134), a positioning block (135) and a fixing column (136); a second accommodating chamber (12) is symmetrically provided inside the installation frame (10); one end of the second accommodating chamber (12) is fixedly connected to the second return spring (131); the other end of the second return spring (131) is fixedly connected to the moving block (132); the upper end of the moving block (132) is fixedly connected to the slider (133); the end of the slider (133) away from the moving block (132) is fixedly connected to the push block (134); the bottom end of the moving block (132) is fixedly connected to the positioning block (135); the end of the positioning block (135) away from the moving block (132) extends out of the bottom end of the installation frame (10); and the end of the positioning block (135) away from the second return spring (131) is fixedly connected to the fixing column (136).

2. The locking device for a municipal road manhole cover according to claim 1, characterized in that: The upper end of the installation frame (10) is symmetrically provided with a slide groove (14), the slide groove (14) is communicated with the second accommodating chamber (12), the slide groove (14) is slidably connected to the slider (133), and the bottom end of the installation frame (10) is symmetrically provided with a moving groove (15), the moving groove (15) is slidably connected to the positioning block (135).

3. The locking device for a municipal road manhole cover according to claim 2, characterized in that: A positioning groove (16) is symmetrically provided at the upper end of the annular support platform (9), and the positioning groove (16) is movably connected to the positioning block (135). A fixing groove (17) is provided at one end inside the positioning groove (16), and the fixing groove (17) is clamped to the fixing column (136).

4. The locking device for a municipal road manhole cover according to claim 3 is characterized in that: The locking assembly (7) comprises a first return spring (71), a movable plate (72), a locking block (73) and an inclined surface (74); a first accommodating cavity (6) is symmetrically provided inside the connecting block (5); one end of the first accommodating cavity (6) is fixedly connected to the first return spring (71); the other end of the first return spring (71) is fixedly connected to the movable plate (72); one end of the movable plate (72) away from the first return spring (71) is fixedly connected to the locking block (73); one end of the locking block (73) away from the movable plate (72) extends out of the side end of the connecting block (5); and the bottom end of the locking block (73) is set as an inclined surface (74).

5. The locking device for a municipal road manhole cover according to claim 4, characterized in that: A connecting groove (4) is provided at the upper end of the fixing block (3), and the connecting groove (4) and the connecting block (5) are plug-connected. A locking groove (8) is symmetrically provided inside the connecting groove (4), and the locking groove (8) and the locking block (73) are snap-connected.

6. The locking device for a municipal road manhole cover according to claim 5, characterized in that: The unlocking assembly (19) comprises a built-in hole (191), a third return spring (192), a connecting column (193) and a pressing block (194); the unlocking block (18) is provided with a built-in hole (191) at one end; the third return spring (192) is fixedly connected to one end of the built-in hole (191); the pressing block (194) is fixedly connected to the other end of the third return spring (192); the pressing block (194) is slidably connected to the built-in hole (191); one end of the pressing block (194) close to the third return spring (192) is fixedly connected to the connecting column (193); the third return spring (192) is sleeved on the outside of the connecting column (193); and one end of the connecting column (193) away from the pressing block (194) extends toward the inside of the locking groove (8).

7. The locking device for a municipal road manhole cover according to claim 6, characterized in that: One end of the connecting column (193) away from the pressing block (194) is fixedly connected to a push plate (20), and the push plate (20) is slidably connected to the locking groove (8).

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