CN104045013A - Manhole cover start warning device - Google Patents

Abstract

The present invention discloses a manhole cover activation warning device, comprising a bracket that can be covered and connected above the manhole cover, wherein the bracket is provided with a lifting device for lifting the manhole cover. Since the present invention covers the bracket above the manhole cover and then lifts the manhole cover by the lifting device, it is convenient for drainage, and the bracket also connects the drainage mouth therein, which can prevent pedestrians or cars from falling into the drainage port, and does not need to arrange people to guard the drainage port, thus saving labor and reducing the labor intensity of the guards; at the same time, the warning device of the present invention is also provided with a warning light for reminding people to pay attention, so that pedestrians or cars can be prevented from colliding with the warning device in environments with poor visibility such as rainy days or at night; in addition, a filter screen is provided on the outer periphery of the middle and lower part of the bracket, which can be used to intercept debris mixed in the water, so as to prevent the debris from entering the drainage pipe and blocking the drainage pipe.

Description

Manhole cover start warning device

technical field

The invention relates to a manhole cover, in particular to a device capable of lifting the manhole cover to facilitate drainage.

Background technique

As we all know, due to the unreasonable design of drainage pipes in most cities in our country, in the season when the rainwater increases rapidly, cities are prone to waterlogging due to excessive water accumulation that cannot be drained away in time.

Sometimes, sanitation workers or armed police officers and soldiers will remove the manhole cover to increase the flow of accumulated water into the drainage pipes and speed up the drainage in order to solve the flooding disaster in the city as much as possible. Although this can drain water quickly, after the manhole cover is uncovered, the drain outlet is relatively large, and pedestrians or vehicles are easy to sink into it. The labor intensity of the people who guard the drain is also very high.

In addition, after the manhole cover is lifted, the debris floating in the water will easily follow the water into the drainage pipe from the drain outlet and cause blockage of the drainage pipe.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide an early warning device with a simple structure, which can lift the manhole cover to facilitate drainage, and at the same time does not require special personnel to be stationed at the drain.

The technical scheme that the present invention adopts for solving its technical problem is:

The early warning device for starting the manhole cover includes a support that can be covered and connected to the top of the manhole cover, and a lifting device for lifting the manhole cover is arranged on the support.

As an improvement of the above technical solution, the supporting legs of the support are height-adjustable telescopic sleeves.

As a further improvement of the above technical solution, the bottom of the supporting foot of the bracket is provided with rollers for facilitating the movement of the bracket.

In order to fix the support and prevent it from moving when it is covered on the top of the manhole cover, a brake mechanism that can lock it is also provided on the roller.

Preferably, the lifting device includes a main body, on which a rotating drum is movably installed, and the rotating drum is wound with a traction cable that can be driven by the rotating drum to rewind and lift the manhole cover or to stretch and lower the manhole cover.

In order to lift the manhole cover more conveniently, the rotating drum is connected with a motor that drives it to rotate forward or reversely.

In order to lift the manhole cover in the case of power failure, the rotating drum is connected with a rotating handle that can be manually driven to rotate.

Further, the traction cable is one or a combination of iron chains, hemp ropes or steel wire cables.

In order to intercept the sundries mixed in the water and prevent the sundries from entering the drainage pipe, a filter screen for filtering sundries is also ringed on the outer periphery of the middle and lower part of the support.

In order to attract people's attention in rainy days or at night and other environments with poor sightlines, to avoid pedestrians or vehicles colliding with the early warning device of the present invention, preferably, the bracket and/or lifting device is also provided with a warning device for reminding people Attention warning lights.

The beneficial effects of the present invention are: because the present invention connects the support to the top of the manhole cover, and then uses the lifting device to lift the manhole cover, it is convenient for drainage, and at the same time, the support connects the drainage mask in it, which not only avoids pedestrians or vehicles If you fall into the drain, there is no need to arrange people to guard the drain, which saves labor and reduces the labor intensity of the stationed people; meanwhile, the early warning device of the present invention is also provided with a warning light for reminding people to pay attention, so that people with poor vision in rainy days or at night In the environment, it can prevent pedestrians or vehicles from colliding with the early warning device; in addition, there is a filter screen on the outer periphery of the middle and lower part of the support, which can be used to intercept debris mixed in the water to prevent debris from entering the drainage pipe and blocking the drainage pipe.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural view of the present invention.

Detailed ways

Referring to Fig. 1, the early warning device for starting the manhole cover includes a bracket 1 that can be covered and connected to the top of the manhole cover. In order to adjust the height of the bracket 1 at will, preferably, the supporting leg 10 of the bracket 1 is a height-adjustable telescopic Sleeve, the telescopic sleeve is formed by connecting the inner and outer sleeves. The outer sleeve is provided with a bolt pressing device that can extend into it and compress the inner sleeve. When the height of the bracket 1 needs to be adjusted, it can be screwed. Loosen the bolt compression device, and then adjust the length of the overlapping part of the inner and outer casings to adjust the overall height of the bracket 1. After the adjustment, tighten the bolt compression device to compress the inner casing to ensure that the inner and outer casings no longer move relative to each other , so as to ensure that the height of the support 1 is fixed, of course, it is also possible for the support leg 10 of the support 1 to adopt a common, non-adjustable length support tube, but in that case the height of the support 1 cannot be achieved, so that the drainage warning device of the present invention The height is not adjustable, and it may not be so convenient to use. Further, the support stand 10 is hingedly mounted on the support 1, so the opening angle of the support stand 10 can be adjusted according to needs; For the hoisting device 2 for hoisting the manhole cover, as a preferred embodiment of the present invention, the hoisting device 2 includes a main body 20. Here, the above-mentioned main body 20 can be a shell independent of the bracket 1, or it can be a bracket 1. The extended casing can be freely selected according to actual needs; the main body 20 is movably installed with a rotating cylinder 21, and the rotating cylinder 21 is wound with a manhole cover that can be driven by its rotation to lift up the manhole cover or stretch it down to put down the manhole cover. The traction cable 22 is a combination of one or more of iron chains, hemp ropes or steel wire cables, which can be freely selected according to actual needs. The end of the traction cable 22 is bifurcated into two Branch cables 220, when working, the drainage early warning device of the present invention moves above the drain outlet, so that the support 1 is covered on the top of the manhole cover, and then the hooks on the two branch cables 220 are inserted into the lifting holes of the manhole cover, Rotate the hook again so that it is engaged with the lifting hole of the manhole cover, and then drive the rotating drum 21 to rotate the winding traction cable 22, thereby lifting the manhole cover so as to speed up drainage; The barrel 21 stretches the traction cable 22 to lower the manhole cover and re-close the manhole cover at the discharge outlet. Because the present invention connects the support 1 to the top of the manhole cover, and then utilizes the hoisting device 2 to lift the manhole cover to facilitate drainage. There is no need to specially arrange people to be stationed, which saves labor and reduces the labor intensity of the people who are arranged to be stationed.

Further, in order to facilitate moving the drainage warning device of the present invention to the manhole cover that needs to be hoisted, preferably, the bottom of the support leg 10 of the support 1 is provided with a roller 11 that facilitates the movement of the support 1, through the above The roller 11 can easily push the drainage warning device to move to the target position, and further preferably, a brake mechanism that can lock it is also provided on the roller 11, and when the drainage warning device moves to a suitable position, it can pass through the The brake mechanism locks the roller 11, so the roller 11 can no longer rotate, so the drainage warning device can not move easily, so that it works more stably.

Furthermore, in order to allow the lifting device 2 of the present invention to lift the manhole cover more easily, preferably, the rotating drum 21 is connected with a motor that drives it to rotate forward or reversely, and the rotating drum 21 is driven to rotate by the motor The manhole cover can be lifted or lowered without manpower driving the drum 21, which helps to reduce the labor intensity of the operator; in addition, in order to prevent power failure, the drainage early warning device of the present invention can still work normally, preferably , one end of the central axis of the drum 21 extends out of the exterior of the main body 20, and a rotating handle 210 is detachably connected to the end of the central axis. There is a hexagonal through hole matched with the hexagonal cylinder. When installing, the rotating handle 210 can be socketed on the hexagonal cylinder, so as to drive the central shaft to drive the rotating drum 21 to rotate. People can manually drive the rotating drum 21 through the above-mentioned rotating handle 210, and can still rotate under the situation of power failure to normally lift or lower the manhole cover, thus making the drainage early warning device of the present invention have a wider application range. In addition, the motor and rotating drum 21 or between the rotating handle 210 and the rotating drum 21 can also be provided with a gearbox for adjusting the transmission ratio between them.

Further, in order to prevent the sundries mixed in the water from entering the drainage pipe together with the water and blocking the drainage pipe, a filter screen 12 for filtering sundries is also ringed on the outer periphery of the middle and lower part of the support 1, and the filter screen here can be Ordinary barbed wire can also be an iron chain wrapped around the outer peripheral wall of the lower part of the bracket 1, and the above-mentioned filter screen can intercept the sundries mixed in the water to ensure that the drainage pipe will not be blocked.

Furthermore, in order to prevent pedestrians or vehicles from colliding with the drainage early warning device of the present invention in rainy days or at night when the line of sight is not good, preferably, the bracket 1 and/or the lifting device 2 are also provided with reminders. People pay attention to the warning light 3, the warning light 3 can be an LED flashing light arranged on the top of the lifting device 2, or it can be an LED light strip around the lifting device 2 and/or the bracket 1, the above is only the warning The preferred embodiment of the lamp 3 is not limited thereto. Furthermore, in order to reduce the connection between the drainage warning device and the outside world, preferably, the main body 20 of the lifting device 2 is provided with a power supply for supplying power to the warning lamp 3. Correspondingly, The main body 20 of the lifting device 2 is also provided with a control switch for controlling the opening and closing of the warning light 3. Of course, the control switch can also be arranged on the warning light 3, and the installation position of the above-mentioned control switch can be freely selected according to specific conditions.

The early warning device for starting the manhole cover of the present invention can also be applied to other tasks that need to uncover the manhole cover, such as ordinary engineering operations. Some workers want to open the manhole cover and enter the well to work. the device. Workers can enter the well to work after the manhole cover is activated and opened by the manhole cover start warning device, and the manhole cover start warning device covered on the well can warn pedestrians or drivers that there is danger in the place and do not approach it.

The above descriptions are only the preferred implementation modes of the present invention, as long as the technical solutions to achieve the purpose of the present invention by basically the same means fall within the scope of protection of the present invention.

Claims (10)

1. manhole cover starts prior-warning device, it is characterized in that: comprise that one can cover the support (1) that is connected to manhole cover top, be provided with a lifting appliance for the manhole cover of slinging (2) on described support (1).

2. manhole cover according to claim 1 starts prior-warning device, it is characterized in that: the support foot rest (10) of described support (1) is height-adjustable telescopic tube.

3. manhole cover according to claim 1 starts prior-warning device, it is characterized in that: the bottom of the support foot rest (10) of described support (1) is provided with is convenient to promote the mobile roller (11) of described support (1).

4. manhole cover according to claim 3 starts prior-warning device, it is characterized in that: on described roller (11), also arranging can be by the braking mechanism of its locking.

5. manhole cover according to claim 1 starts prior-warning device, it is characterized in that: described lifting appliance (2) comprises a main body (20), in described main body (20), be movably installed with a rotating cylinder (21), on this rotating cylinder (21), be wound with and can rotarily drive sling manhole cover or unfold the tracting cable (22) that puts down manhole cover of rolling by it.

6. manhole cover according to claim 5 starts prior-warning device, it is characterized in that: described rotating cylinder (21) is connected with and drives its forward rotation or counter-rotational motor.

7. manhole cover according to claim 5 starts prior-warning device, it is characterized in that: described rotating cylinder (21) is connected with can be by the turning handle (210) that drives manually its rotation.

8. start prior-warning device according to manhole cover described in claim 5 or 6 or 7, it is characterized in that: described tracting cable (22) is one or more the combination in iron chains, the rope made of hemp or flexible steel wire.

9. manhole cover according to claim 1 starts prior-warning device, it is characterized in that: in the middle and lower part periphery of described support (1), be also equipped with the filter screen (12) for filtering foreign material.

10. start prior-warning device according to the manhole cover described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 9, it is characterized in that: on described support (1) and/or lifting appliance (2), be also provided with the Warning light (3) for reminding people to note.