Steel plate invisible well lid convenient to disassemble
By setting a combined structure of card slot, card block, screw and limit block on the steel plate invisible manhole cover, the displacement problem caused by the lack of limit is solved, rapid disassembly and firmly fixing is achieved, and safety and operating efficiency are improved.
Patent Information
- Application Number
- CN202422369334.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-27
AI Technical Summary
Due to the lack of effective limits, existing steel plate invisible manhole covers are prone to displacement when the vehicle passes, resulting in safety hazards. Especially when driving frequently on urban roads, it may cause fall risks to pedestrians and construction personnel.
A steel plate invisible manhole cover is designed for easy disassembly. By setting a combined structure of card slots, card blocks, screws and limit blocks on the cover plate and the protective cover, the protective box is fixed with screws, so as to achieve rapid disassembly and firm fixation of the cover plate to prevent movement caused by external forces.
The rapid disassembly and firm fixation of the manhole cover is achieved, which reduces the time of road closure, improves safety and avoids safety hazards caused by the displacement of the manhole cover.
Smart Images

Figure CN223269276U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel plate invisible manhole covers, in particular to a steel plate invisible manhole cover which is easy to disassemble. Background Art
[0002] A steel plate invisible manhole cover is a manhole cover made of high-quality steel. It is designed to blend perfectly with the surrounding environment to achieve an "invisible" effect. In terms of material, high-strength steel plates are usually selected to ensure that it can withstand the heavy pressure of vehicles and pedestrians and has excellent load-bearing capacity. The steel plates undergo special treatment processes, such as anti-rust and anti-corrosion treatment, to increase their durability and adapt to various outdoor environmental conditions. Common manhole covers are mostly fixed by cement pouring, which increases the overall weight, makes installation and disassembly inconvenient, and lacks effective limiters. Vehicles travel frequently on urban roads. If the manhole cover has no effective limiter, the vibration and pressure generated when the vehicle passes by may cause the manhole cover to shift. For some deeper inspection wells, once the manhole cover is displaced or turned over, it will pose a serious risk of falling to pedestrians and construction workers. Therefore, a steel plate invisible manhole cover that is easy to disassemble is proposed to meet the above-mentioned usage needs. Utility Model Content
[0003] (1) Technical problems solved
[0004] In response to the shortcomings of the existing technology, the utility model provides an easy-to-disassemble steel plate invisible manhole cover, which solves the problem that vehicles frequently travel on urban roads and, if the manhole cover has no effective limit, the vibration and pressure generated when vehicles pass by may cause the manhole cover to shift.
[0005] (2) Technical solution
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steel plate invisible manhole cover that is easy to disassemble, comprising an outer frame and a cover plate, the upper surface of the cover plate is movably connected with a protective cover, the upper surface of the protective cover is movably connected with a protective box, the upper surface of the protective cover is penetrated by a slot four and two slots two, a connecting block is fixedly connected in the slot four, the left surface of the connecting block is fixedly connected to a fixed block, the front surface of the fixed block is provided with a slot three, a block is movably connected in the slot three, a screw is rotatably connected in the slot four, the left and right ends of the screw are threadedly connected with limit blocks, the two limit blocks are respectively fitted with the two slots two, the annular side of the screw is fixedly connected with a roller, the upper surface of the protective box is threadedly connected with two screws, and the two screws are threadedly connected with the protective cover.
[0007] As a preferred technical solution of the present invention, a spring is fixedly connected to the rear surface of the clamping block, a handle block is fixedly connected to the upper surface of the clamping block, and the spring is fixedly connected to the clamping slot three.
[0008] As a preferred technical solution of the present invention, a card slot is provided through both the left and right sides of the outer frame and the cover plate, and two pairs of the card slots are movably connected with two limit blocks respectively.
[0009] As a preferred technical solution of the present invention, a limiting groove three is provided on the annular side surface of the screw rod, and the limiting groove three is movably engaged with the clamping block.
[0010] As an optimal technical solution of the present invention, two limit grooves 1 are provided on the upper surface of the outer frame, and the two limit grooves 1 are both movably connected to the protective box. Two limit grooves 2 are provided on the upper surface of the cover plate, and the two limit grooves 2 are both movably connected to the protective box.
[0011] (3) Beneficial effects
[0012] 1. The clamping block is engaged with the limiting groove three on the screw, which can effectively limit the screw to prevent the screw from rotating due to the influence of external vibration. The two limiting blocks will be separated from the limiting fixation with the outer frame and the cover plate during the movement, and the protective cover and the cover plate can be disassembled as a whole. The overall operation is convenient. The quick disassembly design enables the relevant operations to be completed efficiently when the cover plate is damaged or underground equipment maintenance is required, reducing the road closure time and the impact on traffic.
[0013] 2. During the rotation of the screw, the two limit blocks sleeved on it move opposite to each other under the action of the thread. At this time, the two limit blocks will be clamped with the outer frame and the cover plate, and the three are in a limited and fixed state. The protective box is fixed on the protective cover by two screws for protection. The overall limitation is simple, and the cover plate and the protective cover can be firmly fixed at the wellhead position and will not move easily due to external force, thereby effectively avoiding road safety hazards caused by the displacement of the cover plate and improving overall safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.
[0015] Figure 1 This is the overall structural diagram of the utility model;
[0016] Figure 2 This is a structural diagram of the cover plate in the utility model;
[0017] Figure 3 This is a structural diagram of the protective cover in the present utility model;
[0018] Figure 4 This is a structural diagram of the connection block in the utility model.
[0019] Legend: 1. Outer frame; 2. Cover plate; 3. Protective cover; 4. Protective box; 5. Slot 1; 6. Limit slot 1; 7. Limit slot 2; 8. Limit block; 9. Screw; 10. Connecting block; 11. Screw; 12. Slot 2; 14. Roller; 15. Handle block; 16. Spring; 17. Slot 3; 18. Fixing block; 19. Block; 20. Limit slot 3; 21. Slot 4. DETAILED DESCRIPTION
[0020] The embodiments of the present application provide an easy-to-remove invisible steel manhole cover, which effectively solves the problem that most manhole covers are fixed by pouring cement, which increases the overall weight, is inconvenient to install and remove, and lacks effective limiters. On urban roads, vehicles travel frequently. If the manhole cover has no effective limiter, the vibration and pressure generated by the passing of vehicles may cause the manhole cover to be displaced. For some deeper inspection wells, once the manhole cover is displaced or flipped over, it will pose a serious risk of falling to pedestrians and construction workers.
[0021] Example
[0022] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the overall idea of the embodiment of this application is as follows:
[0023] In view of the problems existing in the prior art, the utility model provides a steel plate invisible manhole cover that is easy to disassemble, including an outer frame 1 and a cover plate 2. The upper surface of the cover plate 2 is movably connected with a protective cover 3, and the upper surface of the protective cover 3 is movably connected with a protective box 4. The upper surface of the protective cover 3 is penetrated by a card slot four 21 and two card slots two 12. A connecting block 10 is fixedly connected in the card slot four 21. The left surface of the connecting block 10 is fixedly connected to a fixed block 18. The front surface of the fixed block 18 is provided with a card slot three 17. A card block 19 is movably connected in the card slot three 17. A screw rod 11 is rotatably connected in the card slot four 21. The left and right ends of the screw rod 11 are threadedly sleeved with a limit block 8. The two limit blocks 8 is respectively fitted with two card slots 2 12, and the annular side of the screw 11 is fixedly connected with a roller 14. Two screws 9 are threadedly sleeved on the upper surface of the protective box 4, and the two screws 9 are threadedly sleeved with the protective cover 3. When disassembly is required, the two screws 9 are turned to open the limit of the protective box 4, and the protective box 4 is removed. The handle block 15 is pressed backward to drive the card block 19 fixed to it to move together, compressing the spring 16. At this time, the roller 14 is turned to drive the two limit blocks 8 to move relative to each other, and the card block 19 is clamped with the limit slot 3 20 opened on the screw 11, which can effectively limit the screw 11 and prevent the screw 11 from rotating due to external vibration.
[0024] The rear surface of the card block 19 is fixedly connected with a spring 16, and the upper surface of the card block 19 is fixedly connected with a handle block 15. The spring 16 is fixedly connected to the card slot three 17. Card slots 5 are opened on the left and right sides of the outer frame 1 and the cover plate 2. The two pairs of card slots 5 are movably connected with the two limit blocks 8 respectively, and the two limit blocks 8 will be separated from the limit fixation with the outer frame 1 and the cover plate 2 during the movement. The protective cover 3 and the cover plate 2 can be disassembled as a whole. The overall operation is convenient. The quick disassembly design enables the relevant operations to be completed efficiently when the cover plate 2 is damaged or underground equipment maintenance is required, reducing the road closure time and the impact on traffic.
[0025] The annular side of the screw 11 is provided with a limiting groove three 20, and the limiting groove three 20 is movably engaged with the block 19. The upper surface of the outer frame 1 is provided with two limiting grooves 6, and the two limiting grooves 6 are movably engaged with the protective box 4. The upper surface of the cover plate 2 is provided with two limiting grooves 7, and the two limiting grooves 7 are movably engaged with the protective box 4. During use, the outer frame 1 is installed above the water well, and the cover plate 2 is clamped on the outer frame 1. At this time, the protective cover 3 is clamped on the cover plate 2. After the clamping is completed, the roller 14 is turned to drive the screw fixed thereto. 11 rotates together, and the two limit blocks 8 sleeved on the screw 11 move oppositely to each other under the action of the thread during the rotation. At this time, the two limit blocks 8 will be clamped with the outer frame 1 and the cover plate 2, and the three are in a limited and fixed state. The protective box 4 is fixed on the protective cover 3 by two screws 9 for protection. The overall limiting is simple, and the cover plate 2 and the protective cover 3 can be firmly fixed at the wellhead position and will not be easily moved due to external force, thereby effectively avoiding the road safety hazards caused by the displacement of the cover plate 2 and improving the overall safety.
[0026] Working principle:
[0027] When it is necessary to disassemble, turn the two screws 9 to open the limit of the protective box 4, remove the protective box 4, press the handle block 15 backward to drive the block 19 fixed with it to move together, compressing the spring 16, and at this time, turn the roller 14 to drive the two limit blocks 8 to move relative to each other, and the block 19 is engaged with the limit groove 3 20 opened on the screw rod 11, which can effectively limit the screw rod 11 to prevent the screw rod 11 from rotating due to external vibration, and the two limit blocks 8 will be separated from the limit fixation with the outer frame 1 and the cover plate 2 during the movement, and the protective cover 3 and the cover plate 2 can be disassembled as a whole. The overall operation is convenient, and the quick disassembly design makes it possible to efficiently complete the relevant operations when the cover plate 2 is damaged or when underground equipment maintenance is required, reducing the road The road closure time and the impact on traffic, during use, the outer frame 1 is installed above the water well, the cover plate 2 is clamped on the outer frame 1, and the protective cover 3 is clamped on the cover plate 2. After the clamping is completed, the roller 14 is turned to drive the screw 11 fixed to it to rotate together. During the rotation of the screw 11, the two limit blocks 8 sleeved on it are moved in opposite directions by the action of the thread. At this time, the two limit blocks 8 will be clamped with the outer frame 1 and the cover plate 2, and the three are in a limited and fixed state. The protective box 4 is fixed on the protective cover 3 by two screws 9 for protection. The overall limitation is simple, the cover plate 2 and the protective cover 3 can be firmly fixed at the wellhead position, and will not be easily moved due to external force, thereby effectively avoiding the road safety hazards caused by the displacement of the cover plate 2 and improving the overall safety.
[0028] Finally, it should be noted that the above embodiments are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to enumerate all embodiments here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.
Claims
1. A steel plate invisible manhole cover that is easy to disassemble, comprising an outer frame (1) and a cover plate (2), characterized in that: The upper surface of the cover plate (2) is movably connected to a protective cover (3), and the upper surface of the protective cover (3) is movably connected to a protective box (4). A fourth card slot (21) and two second card slots (12) are provided through the upper surface of the protective cover (3), and a connecting block (10) is fixedly connected in the fourth card slot (21); The left surface of the connecting block (10) is fixedly connected to a fixing block (18), a front surface of the fixing block (18) is provided with a third card slot (17), a card block (19) is movably connected in the third card slot (17), a screw rod (11) is rotatably connected in the fourth card slot (21), both left and right ends of the screw rod (11) are threadedly sleeved with limit blocks (8), the two limit blocks (8) are respectively fitted with the two second card slots (12), and the annular side surface of the screw rod (11) is fixedly connected to a roller (14).
2. The easily dismantled steel plate invisible manhole cover according to claim 1, characterized in that: Two screws (9) are threadedly sleeved on the upper surface of the protective box (4); Wherein, the two screws (9) are both threadedly sleeved with the protective cover (3).
3. The easily dismantled steel plate invisible manhole cover according to claim 1, characterized in that: The rear surface of the clamping block (19) is fixedly connected to a spring (16), and the upper surface of the clamping block (19) is fixedly connected to a handle block (15); Wherein, the spring (16) is fixedly connected to the third card slot (17).
4. The easily dismantled steel plate invisible manhole cover according to claim 1, characterized in that: A card slot (5) is provided through both the left and right sides of the outer frame (1) and the cover plate (2); The two pairs of the first card slots (5) are respectively movably connected to the two limit blocks (8).
5. The easily dismantled steel plate invisible manhole cover according to claim 1, characterized in that: The annular side surface of the screw (11) is provided with a limiting groove three (20); Wherein, the limiting groove three (20) is movably engaged with the clamping block (19).
6. The easily dismantled steel plate invisible manhole cover according to claim 1, characterized in that: The upper surface of the outer frame (1) is provided with two limiting grooves (6), and the two limiting grooves (6) are both movably engaged with the protective box (4); Wherein, two limiting grooves (7) are provided on the upper surface of the cover plate (2), and both limiting grooves (7) are movably engaged with the protection box (4).