Anti-overflow well lid

Abstract

The anti-overflow well lid comprises a well lid body and a water hole, the interior of the water hole is connected with a lifting block in a sliding mode, an overflow groove is formed in the lifting block, a linkage rod is fixedly installed at the lower end of the lifting block, a floating block is fixedly installed at the lower end of the linkage rod, a spring cavity is formed in the outer side of the water hole, and the spring cavity is communicated with the overflow groove. And a telescopic spring is fixedly installed in the spring cavity, a connecting rod is fixedly installed at the lower end of the telescopic spring, a water baffle is fixedly installed at the lower end of the connecting rod, and a water baffle groove is formed under the spring cavity. The floating block, the linkage rod, the lifting block, the water baffle, the telescopic spring and the connecting rod are used in cooperation, double-layer sealing can be achieved on a well lid water hole, it is guaranteed that water below a well lid cannot overflow upwards, the situation that dirty water in a well overflows to the road surface, and the environment and attractiveness are affected is avoided, practicability is high, and the well lid is suitable for popularization and application. And daily use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of manhole covers, in particular to an anti-overflow manhole cover. Background Art

[0002] Municipal administration refers to various administrative management work in a city, and also refers to market and trade affairs; urban management work includes industry and commerce, transportation, public security, culture and education, environment, health, infrastructure, etc. Drainage generally refers to the urban water supply system and drainage system, referred to as water supply and drainage. Water supply projects are projects that supply water for living and production for residents and factories, mines and transportation enterprises, as well as water for fire fighting and road greening. They are composed of water supply sources, water intake structures, raw water pipelines, water treatment plants and water supply networks, and have the function of collecting and transporting raw water to improve water quality.

[0003] Existing technologies include the utility model with announcement number CN210712956U, which discloses a manhole cover. The manhole cover of the utility model adopts a composite structure combining steel plates and decorative surface layers, which can greatly improve the bearing capacity of the manhole cover and reduce the loss caused by corrosion in the natural environment; the limiting frame and the load-bearing base plate are welded and fixed on site, and the load-bearing base plate is welded to the corresponding height of the limiting frame, which can flexibly adapt to the thickness of the decorative surface layer on the construction site, and the overall structure is simple and easy to install, maintain and open, including: a load-bearing base plate, formed into a shape adapted to the wellhead, and a distance between the outer edge of the load-bearing base plate and the corresponding wellhead; a limiting frame, matched and sleeved on the outside of the load-bearing base plate and fixed to the load-bearing base plate, and the top edge of the limiting frame is higher than the top surface of the load-bearing base plate; a decorative surface layer, arranged on the load-bearing base plate, and the top surface of the decorative surface layer is flush with the top surface of the limiting frame.

[0004] The above-mentioned existing technical solutions have the following defects: when the drainage volume of the above-mentioned manhole cover is large during the rainy season, when the water level in the manhole is too high, the water under the manhole cover will overflow upward from the drainage hole, causing the dirty water from the sewer to overflow onto the road surface, affecting the environment and appearance. Therefore, we propose a new type of overflow-proof manhole cover. Utility Model Content

[0005] The utility model provides an anti-overflow manhole cover to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] An anti-overflow manhole cover includes a manhole cover body, a water hole is opened inside the manhole cover body, a lifting block is slidably connected to the inside of the water hole, an overflow groove is opened inside the lifting block, a linkage rod is fixedly installed at the lower end of the lifting block, a floating block is fixedly installed at the lower end of the linkage rod, a spring cavity is opened outside the water hole, a telescopic spring is fixedly installed inside the spring cavity, a connecting rod is fixedly installed at the lower end of the telescopic spring, a water baffle is fixedly installed at the lower end of the connecting rod, and a water baffle groove is provided directly below the spring cavity.

[0008] As a further improvement of the technical solution: the floating block is made of a combination of composite foam and low-density filler.

[0009] As a further improvement of the present technical solution: a plurality of evenly distributed overflow troughs are provided inside the lifting block.

[0010] As a further improvement of the present technical solution: the telescopic spring is a waterproof spring, wherein the telescopic spring is made of stainless steel.

[0011] As a further improvement of this technical solution: the water retaining plate is made of polyethylene plastic material.

[0012] As a further improvement of the present technical solution: the water baffle is in the shape of a cylindrical barrel as a whole, wherein the water baffle is located directly below the water baffle groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] When rainwater is about to overflow from the sewer (well), the floating block, linkage rod and lifting block are used together, so that the floating block will block the water hole, completing the first sealing treatment of the manhole cover body. The water baffle, telescopic spring and connecting rod are used together to complete the second sealing treatment of the manhole cover body. The double-layer sealing mechanism is used to seal the water hole of the manhole cover to ensure that the water under the manhole cover cannot overflow upward, and the dirty water inside the sewer (well) will not overflow onto the road surface, affecting the environment and appearance. It is highly practical.

[0015] 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 description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the overflow trough structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the telescopic spring structure of the utility model.

[0020] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0021] 1. Manhole cover body; 2. Water hole; 3. Lifting block; 4. Overflow trough; 5. Linkage rod; 6. Floating block; 7. Spring chamber; 8. Telescopic spring; 9. Connecting rod; 10. Water baffle; 11. Water baffle groove. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are in a very simplified form and are not in exact proportions, and are only used to facilitate and clearly illustrate the embodiments of the present invention.

[0023] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] See also Figures 1 to 3 In an embodiment of the utility model, an overflow-proof manhole cover includes a manhole cover body 1, a water hole 2 is opened inside the manhole cover body 1, a lifting block 3 is slidably connected to the inside of the water hole 2, an overflow groove 4 is opened inside the lifting block 3, a linkage rod 5 is fixedly installed at the lower end of the lifting block 3, a floating block 6 is fixedly installed at the lower end of the linkage rod 5, a spring cavity 7 is opened on the outside of the water hole 2, a telescopic spring 8 is fixedly installed inside the spring cavity 7, a connecting rod 9 is fixedly installed at the lower end of the telescopic spring 8, a water baffle 10 is fixedly installed at the lower end of the connecting rod 9, and a water baffle groove 11 is provided directly below the spring cavity 7.

[0026] See also Figure 1-2 The floating block 6 is made of a combination of composite foam and low-density filler. The floating block 6 made of a combination of composite foam and low-density filler has the characteristics of light weight and high buoyancy, and can hold up the linkage rod 5 and the lifting block 3 under the buoyancy of water.

[0027] See also Figure 1-2 A plurality of evenly distributed overflow grooves 4 are provided inside the lifting block 3, and the plurality of evenly distributed overflow grooves 4 are provided to allow water from the outside to enter the interior of the well.

[0028] See also Figure 1 and Figure 3 The telescopic spring 8 is a waterproof spring, which is made of stainless steel. The telescopic spring 8 made of stainless steel has anti-corrosion properties and can greatly extend the service life of the telescopic spring 8.

[0029] See also Figure 1 The water retaining plate 10 is made of polyethylene plastic material. The water retaining plate 10 made of polyethylene plastic material has the characteristics of light weight, high strength and corrosion resistance, and can meet daily use needs.

[0030] See also Figure 1 and Figure 3 The water baffle 10 is in the shape of a cylindrical barrel as a whole, wherein the water baffle 10 is located directly below the water baffle groove 11. By setting the water baffle 10 and the water baffle groove 11 to a fitting state, it is convenient to seal the water hole 2 when there is too much water in the well, which can effectively prevent the water in the well from overflowing.

[0031] The working principle of the present invention is as follows: when the manhole cover is used in the rainy season or in a season with particularly heavy rain, rainwater first flows from the water hole 2 inside the manhole cover body 1 into the overflow trough 4 inside the lifting block 3, and then flows into the sewer (well). When there is too much rain and the sewer (well) cannot be drained in time, the water inside the sewer (well) will generate buoyancy to push the water baffle 10 upward, the connecting rod 9 will move upward, the telescopic spring 8 will be compressed, and at the same time the buoyancy generated by the water will push the floating block 6 upward, the linkage rod 5 and the lifting block 3 will press the floating block 6 It plays a guiding role and controls the moving direction of the float 6. The float 6 will eventually block the water hole 2, completing the first sealing treatment of the manhole cover body 1. As the water inside the sewer (well) continues to rise, the upper end of the water baffle 10 will eventually enter the water baffle groove 11, completing the second sealing treatment of the lower end of the manhole cover body 1. When the water level in the well is too high, the water under the manhole cover cannot overflow upward, and the dirty water inside the sewer (well) will not overflow onto the road surface, affecting the environment and appearance, and the manhole cover is highly practical.

[0032] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. An anti-overflow manhole cover, characterized in that: The invention comprises a manhole cover body (1), wherein a water hole (2) is provided inside the manhole cover body (1), a lifting block (3) is slidably connected inside the water hole (2), an overflow groove (4) is provided inside the lifting block (3), a linkage rod (5) is fixedly installed at the lower end of the lifting block (3), a floating block (6) is fixedly installed at the lower end of the linkage rod (5), a spring cavity (7) is provided outside the water hole (2), a telescopic spring (8) is fixedly installed inside the spring cavity (7), a connecting rod (9) is fixedly installed at the lower end of the telescopic spring (8), a water baffle (10) is fixedly installed at the lower end of the connecting rod (9), and a water baffle groove (11) is provided directly below the spring cavity (7).

2. The anti-overflow manhole cover according to claim 1, characterized in that: The floating block (6) is made of a combination of composite foam and low-density filler.

3. The anti-overflow manhole cover according to claim 1, characterized in that: A plurality of evenly distributed overflow grooves (4) are provided inside the lifting block (3).

4. The anti-overflow manhole cover according to claim 1, characterized in that: The telescopic spring (8) is a waterproof spring, wherein the telescopic spring (8) is made of stainless steel.

5. The anti-overflow manhole cover according to claim 1, characterized in that: The water retaining plate (10) is made of polyethylene plastic material.

6. The anti-overflow manhole cover according to claim 1, characterized in that: The water baffle plate (10) is in the shape of a cylindrical barrel as a whole, wherein the water baffle plate (10) is located directly below the water baffle plate groove (11).

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