Well lid capable of being automatically opened or closed according to water pressure

Abstract

The utility model relates to the technical field of well lids, and discloses a well lid capable of being automatically opened or closed according to water pressure, which comprises a well seat and a well lid, the well lid is embedded in the upper side of the interior of the well seat, one side of the lower end of the well seat is connected with an anti-floating fitting through a first hexagon bolt, and the anti-floating fitting movably abuts against the inner side wall of the well seat. The other side of the lower end of the well lid is connected with a connecting rod fitting through a second hexagon bolt piece, and the connecting rod fitting movably abuts against the inner side wall of the well base. According to the utility model, the anti-floating fitting and the connecting rod fitting are arranged on the two sides of the lower end of the well lid, so that the well lid can be automatically opened and closed in a high-pressure state and a low-pressure normal state of the water pressure of the well body, and the response speed and efficiency of a drainage system are greatly improved; the double locking design of the novel anti-floating fitting and the connecting rod fitting effectively prevents the manhole cover from accidentally moving when the water pressure is abnormal, guarantees the safety of pedestrians and vehicles, and is safe and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of manhole cover technology, specifically a manhole cover that can automatically open or close according to water pressure. Background Technology

[0002] Traditional manhole covers are mostly manual or fixed, and cannot automatically adjust their opening and closing according to environmental conditions (such as water accumulation caused by heavy rain). This not only affects drainage efficiency but may also pose safety hazards due to excessive water accumulation. Therefore, developing a manhole cover device that can automatically respond to changes in water pressure is particularly important.

[0003] Based on this, a manhole cover that can automatically open or close according to water pressure was designed. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a well cover that can automatically open or close according to water pressure, effectively solving the problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a manhole cover that can be automatically opened or closed according to water pressure, comprising a manhole base and a manhole cover, wherein the manhole cover is embedded in the upper side of the manhole base, and an anti-floating fitting is connected to one side of the lower end of the manhole base by a first hexagonal bolt, the anti-floating fitting being in movable contact with the inner wall of the manhole base, and a connecting rod fitting is connected to the other side of the lower end of the manhole cover by a second hexagonal bolt, the connecting rod fitting being in movable contact with the inner wall of the manhole base.

[0006] Preferably, the upper side of the well base is provided with a boss, the well cover is located on the boss, and a fall-prevention ladder is installed on the lower side of the well base.

[0007] Preferably, one end of the anti-buoyancy fitting is provided with a hook, and the inside of the well base is provided with a hook limiting protrusion on one side corresponding to the hook part of the anti-buoyancy fitting. Under normal pressure, the hook and the hook limiting protrusion are in a disengaged state, and under high pressure, the hook and the hook limiting protrusion are in an abutting state.

[0008] Preferably, one end of the connecting rod fitting is provided with an external protrusion, and the inner side of the well base corresponding to the external protrusion of the connecting rod fitting is provided with an external protrusion limiting protrusion. Under normal pressure, the external protrusion and the external protrusion limiting protrusion are in a disengaged state, and under high pressure, the external protrusion and the external protrusion limiting protrusion are in an abutting state.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. This utility model, through the anti-floating hardware and connecting rod hardware set on both sides of the lower end of the manhole cover, can realize the automatic opening and closing of the manhole cover under high pressure and low pressure conditions, which greatly improves the response speed and efficiency of the drainage system.

[0011] 2. The dual locking design of the new anti-floating hardware and connecting rod hardware effectively prevents the manhole cover from moving unexpectedly when the water pressure is abnormal, ensuring the safety of pedestrians and vehicles, and is safe and reliable. Attached Figure Description

[0012] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0013] In the attached diagram:

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the fall-prevention ladder of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the manhole cover of this utility model under normal pressure.

[0017] Figure 4 This is a schematic diagram of the structure of the manhole cover of this utility model in the high-pressure floating state;

[0018] In the diagram: 1. Manhole base; 2. Manhole cover; 3. First hexagonal bolt; 4. Anti-floating hardware; 5. Second hexagonal bolt; 6. Connecting rod hardware; 7. Boss; 8. Fall protection ladder; 9. Hook; 10. Hook limiting protrusion; 11. Outer protrusion; 12. Outer protrusion limiting protrusion. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Example 1, by Figures 1-4 The present invention includes a well base 1 and a well cover 2. The well cover 2 is embedded in the upper side of the inside of the well base 1. A first hexagonal bolt 3 connects an anti-floating hardware 4 to one side of the lower end of the well base 1. The anti-floating hardware 4 is in movable contact with the inner wall of the well base 1. A second hexagonal bolt 5 connects a connecting rod hardware 6 to the other side of the lower end of the well cover 2. The connecting rod hardware 6 is in movable contact with the inner wall of the well base 1.

[0021] The upper side of the well base 1 is provided with a boss 7, the well cover 2 is located on the boss 7, and the lower side of the well base 1 is provided with a fall prevention ladder 8.

[0022] One end of the anti-floating hardware 4 is provided with a hook 9, and the inside of the well base 1 is provided with a hook limiting protrusion 10 on one side corresponding to the hook 9 of the anti-floating hardware 4. Under normal pressure, the hook 9 and the hook limiting protrusion 10 are in a disengaged state, and under high pressure, the hook 9 and the hook limiting protrusion 10 are in an abutting state.

[0023] One end of the connecting rod fitting 6 is provided with an external protrusion 11. Inside the well base 1, on one side of the part corresponding to the external protrusion 11 of the connecting rod fitting 6, there is an external protrusion limiting protrusion 12. Under normal pressure, the external protrusion 11 and the external protrusion limiting protrusion 12 are in a disengaged state. Under high pressure, the external protrusion 11 and the external protrusion limiting protrusion 12 are in abutting state.

[0024] Working principle: Under normal pressure, the manhole cover 2 is placed stably on the protrusion 7 inside the manhole base 1 to ensure the sealing of the manhole opening and the safety of pedestrians and vehicles.

[0025] The hook 9 of the anti-floating hardware 4 is disengaged from the hook limiting protrusion 10 inside the well seat 1, and the outer protrusion 11 of the connecting rod hardware 6 is also disengaged from the outer protrusion limiting protrusion 12, which allows the well cover 2 to remain free when it is not subjected to external force.

[0026] When drainage is needed, such as in the event of light rain or normal rainfall, water flows into the well through the gaps in the well cover 2 or the reserved drainage holes, and the drainage channel inside the well seat 1 remains unobstructed to ensure that rainwater can be smoothly discharged into the sewer system.

[0027] When encountering extreme weather conditions such as heavy rain, the water pressure at the wellhead increases, causing the well cover 2 to float up. The hook 9 of the anti-floating hardware 4 is subjected to water pressure and automatically moves towards the hook limiting protrusion 10 inside the well seat 1 and abuts against it. This action effectively locks the position of the well cover 2, preventing it from being accidentally blown open due to excessive water pressure.

[0028] At the same time, the outer protrusion 11 of the connecting rod hardware 6 is also subjected to water pressure, moving towards the outer protrusion limiting protrusion 12 and abutting. This double locking mechanism further enhances the stability of the manhole cover 2, ensuring that the manhole cover 2 will not fall off or shift under high pressure water flow.

[0029] When the water pressure drops to a normal or lower level, the hook 9 of the anti-floating hardware 4 and the outer protrusion 11 of the connecting rod hardware 6 will automatically disengage from the contact state of the hook limiting protrusion 10 and the outer protrusion limiting protrusion 12. At this time, the manhole cover 2 can fall onto the protrusion 7 under its own weight.

[0030] In summary, this utility model, through a series of precisely designed structures and working principles, realizes the function of automatically opening or closing the manhole cover 2 according to changes in water pressure. This innovative design not only improves the efficiency and safety of the urban drainage system, but also provides more convenient and safer protection for citizens' travel and life.

Claims

1. A manhole cover that can automatically open or close according to water pressure, comprising a manhole base (1) and a manhole cover (2), characterized in that: The well base (1) is fitted with a well cover (2) on the upper side inside. The lower end of the well base (1) is connected to an anti-floating fitting (4) by a first hexagonal bolt (3). The anti-floating fitting (4) is in movable contact with the inner wall of the well base (1). The lower end of the well cover (2) is connected to a connecting rod fitting (6) by a second hexagonal bolt (5). The connecting rod fitting (6) is in movable contact with the inner wall of the well base (1).

2. A manhole cover that can automatically open or close according to water pressure as described in claim 1, characterized in that: The upper side of the well base (1) is provided with a boss (7), the well cover (2) is located on the boss (7), and the lower side of the well base (1) is provided with a fall prevention ladder (8).

3. A manhole cover that can automatically open or close according to water pressure as described in claim 1, characterized in that: The anti-floating fitting (4) is provided with a hook (9) at one end. Inside the well base (1), a hook limiting protrusion (10) is provided on one side corresponding to the hook (9) of the anti-floating fitting (4). Under normal pressure, the hook (9) and the hook limiting protrusion (10) are in a disengaged state. Under high pressure, the hook (9) and the hook limiting protrusion (10) are in an abutting state.

4. A manhole cover that can automatically open or close according to water pressure as described in claim 1, characterized in that: One end of the connecting rod fitting (6) is provided with an outer protrusion (11), and the well seat (1) is provided with an outer protrusion limiting protrusion (12) on one side of the part corresponding to the outer protrusion (11) of the connecting rod fitting (6). Under normal pressure, the outer protrusion (11) and the outer protrusion limiting protrusion (12) are in a disengaged state. Under high pressure, the outer protrusion (11) and the outer protrusion limiting protrusion (12) are in an abutting state.

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