CN216515224U - A float formula warning anti-falling device for rain bilge well - Google Patents

Abstract

The utility model discloses a fish float type warning and anti-fall device for rainwater wells, which comprises at least three limit rings fixed on the inner wall of the rainwater well on the same horizontal plane. The axis of the rainwater well is parallel to the connecting rod passing through the limit ring. The upper and lower ends of the connecting rod are provided with fish floats that provide buoyancy for the connecting rod to extend upward from the rainwater wellhead. The center diameter of the fish float is greater than the diameter of the limit ring. After the manhole cover is washed away, the utility model is activated in time to become a temporary roadblock to warn passing pedestrians and vehicles to detour.

Description

A fish float type warning anti-fall device for rainwater wells

technical field

The utility model relates to the technical field of municipal facilities, in particular to a fish float type warning and anti-fall device for rainwater and sewage wells.

Background technique

With the acceleration of urbanization, many pipelines will be laid underground, such as sewers, water pipelines, power pipelines, communication pipelines, etc. Each section of these pipelines must have an outlet leading to the ground, from the pipeline to the section on the ground. Known as a manhole, the entrance of the manhole is usually flush with the ground, so a manhole cover is needed to prevent vehicles or pedestrians from falling.

Due to global warming, extreme weather is becoming more and more frequent, and there will be prolonged rainfall in many areas, resulting in the loss of basic drainage functions of urban sewage pipes. The wellhead has become a safety hazard.

Patent document CN 108589781A discloses an automatic anti-fall warning type rainwater well cover, including anti-falling net and automatic warning sign. The road is laid horizontally, and there is a certain gap from the rainwater manhole cover on the ground. A warning sign is installed in the gap between the anti-falling net and the manhole cover. One end of the warning sign is hinged to the anti-falling net with bolts, and a torsion spring is installed. This device can automatically eject the warning sign after the rainwater manhole cover is flushed through the torsion spring. , became a temporary roadblock, but the torsion spring of the device would fail after a long period of operation.

Patent document CN 213741232U discloses a pit cover, which includes a mounting base, a cover body and a secondary cover. The mounting base is coaxially provided with mounting holes, the mounting base is fixed on the wellhead of the manhole, the cover is mounted in the mounting holes, and the holes of the mounting holes The wall is provided with an annular limit shoulder, the auxiliary cover is located on the annular limit shoulder, and the auxiliary cover is located under the cover body. , the auxiliary cover has become a temporary manhole cover to prevent pedestrians from stepping on the air and falling, but this device is more troublesome when workers go down to repair, and the auxiliary cover can be opened only after removing the bolts on the four sides.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a fish float type warning anti-fall device with simple structure and convenient maintenance and use. The device is suitable for most rainwater wells and can be started in time after the well cover is washed away. It becomes a temporary warning sign to prevent pedestrians from falling into the well because there is no well cover.

A fish float type warning anti-fall device for rainwater wells, comprising:

On the same horizontal plane, at least three limit rings are fixed on the inner wall of the rainwater well, and the central axis direction of the limiter ring is parallel to the axis of the rainwater well;

a connecting rod passing through the limit ring;

The upper and lower ends of the connecting rod are provided with fish floats that provide buoyancy for the connecting rod to extend upward from the wellhead of the rainwater and sewage, and the center diameter of the fish float is larger than the diameter of the limit ring.

Preferably, there are three limit rings in total, and they are fixed on the inner wall of the rainwater well at equal intervals, so that the entire structure of the device is very stable.

Preferably, the fish float type warning anti-fall device further includes a protection ring located above the limit ring and fixed to the connecting rod along the circumference of the well wall to prevent the connecting rod from falling when the water level in the rainwater well is insufficient.

Preferably, a fixing ring fixed to the connecting rod along the circumference of the well wall is arranged above the protection ring, so that the structure of the three connecting rods is more stable.

Preferably, both the protection ring and the fixing ring pass through the middle of the connecting rod, so that the whole structure is firmer.

Preferably, the outer peripheral surfaces of the protection ring and the fixing ring are provided with warning colors, which can prompt pedestrians and vehicles to bypass at a certain distance.

Preferably, the outer peripheral surfaces of the protection ring and the fixing ring are coated with reflective paint, which can also play a warning role at night.

Preferably, the lower end of the connecting rod is provided with a one-way spring buckle that is used in conjunction with the limit ring at the position close to the fish float. When the accumulated water recedes, it is ensured that it remains in a stretched state before the arrival of the maintenance personnel, which acts as a roadblock .

Preferably, the outer surface of the fish float is provided with a warning color, and when the protective ring is submerged due to excessive accumulation of water, the substitute protective ring acts as a temporary warning.

Preferably, the length ratio of the fish float to the connecting rod is 1:5 to 10, and the fish float type warning anti-fall device can be selected according to different sizes of rain and sewage wells.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model is simple in structure and convenient in installation, and only needs to fix the limit ring; when the manhole cover is washed away, the connecting rod is moved by the buoyancy provided by the fish float. Hold up and extend out of the wellhead, and at the same time, the protection ring driven by the connecting rod extends upwards and becomes a roadblock, providing warnings to pedestrians and vehicles in the distance; further, the one-way spring buckle at the lower end is locked with the limit ring when it floats up. The buckle connection ensures that after the water recedes, the device can still play a warning role and will not fall.

Description of drawings

Fig. 1 is the structural representation when the fish float type warning anti-fall device provided by the utility model is not activated;

Fig. 2 is the structural representation when the fish float type warning anti-fall device provided by the utility model is activated;

Fig. 3 is the structural schematic diagram when the one-way spring buckle is not clamped with the limit ring;

Fig. 4 is a structural schematic diagram when the one-way spring buckle and the limit ring are clamped;

In the picture: 1. Manhole cover; 2. Well wall; 3. Protection ring; 4. Bottom fish float; 5. One-way spring buckle; 6. Connecting rod; 7. Limit ring; .

Detailed ways

As shown in Figures 1 and 2, a fish float type warning anti-fall device for rainwater wells includes: in the rainwater well and the manhole cover 1 at a distance of 25CM, three limit positions are arranged at equal intervals along the circumference of the well wall 2 Ring 7, each limit ring 7 is provided with a connecting rod 6, and at the same time above the limit ring 7, there is also a protection ring 3 fixed in the middle of the connecting rod 6 along the circumference of the well wall 2. The position ring 7 is used in conjunction to limit the downward movement of the connecting rod 6, and a fixing ring 8 that is fixed in the middle of the connecting rod 6 along the circumferential direction of the well wall 2 is located above the protection ring 3. The fixing ring 8 cooperates with the limiting ring 7 so that The structure of the three connecting rods 6 is more stable; the connecting rod 6 is 75CM long, and the two ends of the connecting rod 6 are respectively provided with an upper fish float 9 and a lower fish float 4, and the upper fish float 9 and the lower fish float 4 are 15CM long.

When the manhole cover 1 is washed away due to a heavy rainstorm or flood, the device in the well is triggered and activated, and the upper fish float 9 and the lower fish float 4 provide buoyancy for the connecting rod 6, so that the upper part of the connecting rod 6 protrudes from the wellhead. At this time, the protection ring 3 It forms a temporary roadblock with the fixing ring 8; the surface of the upper fish float 9, the outer peripheral surface of the protection ring 3 and the fixing ring 8 are provided with yellow and black striped patterns for warning pedestrians and passing vehicles, while the protection ring 3 and the fixing ring The outer peripheral surface of 8 is coated with reflective paint, which can still play a warning role within a certain distance at night.

As shown in Figures 3 and 4, a one-way spring buckle 5 is provided at the connecting rod 6 near the lower end of the fish float 4. The one-way spring buckle 5 is in the shape of a right-angled triangle with the oblique side up, and the oblique side opens inward. There is a one-way guide port. When the water level in the well rises slowly, the bottom fish float 4 provides upward buoyancy for the connecting rod 6. Since the one-way spring buckle 5 is an elastic piece, when it is squeezed with the limit ring 7, it passes through. The one-way guide port and the limit ring 7 are locked firmly; when the accumulated water recedes, the limit ring 7 is still locked with the one-way spring buckle 5 by the action of gravity, until the maintenance personnel arrive at the site to manually restore.

Specific working principle: When the rainwater well is at normal water level, the manhole cover is used to limit the extension of the connecting rod; when the manhole cover is washed away by heavy rain or flood disaster, the device installed in the well will act through the buoyancy of the fish float and the limit ring. down, so that the connecting rod with the protective ring and the fixed ring extends vertically out of the wellhead, acting as a temporary roadblock to warn passing pedestrians and vehicles to detour.

Claims (10)

1. a fish float type warning anti-fall device for rainwater wells, is characterized in that, comprises: On the same horizontal plane, at least three limit rings are fixed on the inner wall of the rainwater well, and the central axis direction of the limiter ring is parallel to the axis of the rainwater well; a connecting rod passing through the limit ring; The upper and lower ends of the connecting rod are respectively provided with fish floats that provide buoyancy for the connecting rod to extend upward from the wellhead of the rainwater and sewage, and the center diameter of the fish float is larger than the diameter of the limit ring. 2 . The fish float type warning and anti-fall device for rainwater wells according to claim 1 , wherein there are three limit rings in total, and they are fixed on the inner wall of the rainwater well at equal intervals. 3 . 3 . The fish float type warning anti-fall device for rainwater wells according to claim 1 , wherein the fish float type warning anti-fall device further comprises a connecting rod located above the limit ring, along the circumference of the well wall and a connecting rod. 4 . Fixed guard ring. 4 . The fish float type warning and anti-fall device for rainwater and sewage wells according to claim 3 , wherein a fixing ring fixed to the connecting rod along the circumference of the well wall is arranged above the protection ring. 5 . 5 . The fish float type warning anti-fall device for rainwater wells according to claim 4 , wherein the protection ring and the fixing ring pass through the middle of the connecting rod. 6 . 6 . The fish float type warning anti-fall device for rainwater wells according to claim 4 , wherein the outer peripheral surfaces of the protection ring and the fixing ring are provided with warning colors. 7 . 7 . The fish float type warning and anti-fall device for rainwater wells according to claim 4 , wherein the outer peripheral surfaces of the protection ring and the fixing ring are both coated with reflective paint. 8 . 8 . The fish float type warning and anti-fall device for rainwater and sewage wells according to claim 1 , wherein the lower end of the connecting rod close to the fish float is provided with a one-way spring buckle for use with the limit ring. 9 . 9 . The fish float type warning anti-fall device for rainwater and sewage wells according to claim 1 , wherein the outer surface of the fish float is provided with a warning color. 10 . 10 . The fish float type warning anti-fall device for rainwater and sewage wells according to claim 1 , wherein the length ratio of the fish float to the connecting rod is 1:5-10. 11 .

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