CN205444399U - Cascaded drop well - Google Patents

Abstract

The utility model discloses a stepped water drop well, which comprises a well body, and a spiral staircase is arranged along the inner wall of the water drop well; the water drop well is also provided with at least two water inlet pipes and at least one water outlet pipe, and the water inlet pipe and the water outlet pipe There is any angle between them, so that when water enters the well body from any direction, it can flow out from the same side along the rotating ladder after falling to the bottom of the well; two inspection well covers are arranged side by side at the top of the rotating staircase, one of which is The manhole cover communicates with the first platform of the spiral staircase, and the center of the other manhole cover is aligned with the center of the partition wall. The utility model can effectively solve the step type water drop well which can not only realize the large water drop but also realize the water drop turning at the same time, and also solves the water flow turning problem when the existing water drop well has no three-way or four-way connection; in addition, it also reduces the upstream inspection The engineering quantity of buried depth of wells and pipelines reduces the engineering cost and improves the safety of operation at the same time.

Description

stepped drop well

technical field

The utility model relates to urban drainage engineering, in particular to a stepped water drop well.

Background technique

The stepped drop well is to eliminate the impact of the high flow rate caused by the height difference of the pipeline on the pipeline and the bottom plate of the inspection well. If there is no drop well, it will cause damage to the pipeline and the inspection well in the long run, and even the bottom of the well will be hollowed out.

Generally speaking, the water inlet pipe and the water outlet pipe of the stepped water drop well are in a straight line at present, there is no water drop well that drops water and turns again, there is no three-way, four-way water drop well, and there is no ventilation pipe. Therefore, there are generally the following disadvantages in the current national general map of the water drop well:

1. The water inlet pipe and the water outlet pipe are in a straight line, and there is no drop well where the water falls and turns;

2. There is no three-way or four-way drop well, that is, an intersection well composed of two or three water inlet pipes and water outlet pipes. When the above situation is encountered in the project, the upstream inspection well of the node can only be made into a drop well, and then the node can be made into a turning well or a three-way and four-way intersection well. Therefore, the upstream inspection well and pipelines are bound to be increased. The buried depth of the project increases accordingly;

3. It is necessary to use the climbing ladder or foot socket in the well to enter the water well, which is generally very deep from the ground to the bottom of the well, which is extremely unsafe for maintenance workers to operate;

4. During the falling process of the water flow, the gas in the water flow will overflow, and there is no ventilation pipe. Therefore, a new design method for drop wells is needed to solve the above-mentioned series of problems.

Utility model content

In view of the above-mentioned defects of the prior art, the utility model provides a stepped water drop well that can not only drop water but also realize water flow turning, which includes a well body, and is characterized in that a spiral staircase is set along the inner wall of the water drop well (this utility model The new type of spiral staircase is also used for the inspection and maintenance of the next person in the future, so the width and elevation of the spiral staircase are all with reference to the civil construction stairs); the falling well is also provided with at least two water inlet pipes and at least one water outlet pipe, and the water inlet pipe and the water outlet pipe There is an arbitrary angle between them, so that when water enters the well body from any direction, it can flow out from the same side along the rotating ladder after falling to the bottom of the well; two inspection well covers are arranged side by side at the top of the rotating staircase, one of which is The manhole cover communicates with the first platform of the spiral staircase, and the center of the other manhole cover is aligned with the center of the partition wall.

In some embodiments, the elevation of the top of the first stage platform of the spiral staircase is lower than the elevation of the inner bottom of the water inlet pipe (generally, it is sufficient to meet the requirement of structural opening reinforcement reinforcement). Connecting the elevation of the water inlet pipe with the elevation of the spiral staircase can make the water flow more smoothly from any direction through the water inlet pipe into the drop well.

In some embodiments, a middle partition wall for preventing water from directly falling to the bottom of the well is provided at the center of the drop well, and a hole is opened at the center of the middle partition wall. In this embodiment, by opening a hole in the center of the partition wall, it can go up to the ground and down to the bottom of the well.

In some embodiments, a detachable stainless steel flat grid is also provided at the mouth of each water inlet pipe. This can prevent the solid matter in the pipeline from directly entering the spiral staircase of the drop well.

In some embodiments, a ventilation pipe for exhausting air is also arranged adjacent to the top plate of the drop well.

On the basis of conforming to common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain preferred embodiments of the present utility model.

The beneficial effects of the utility model:

1. The design structure of the stepped water drop well of the present utility model can effectively solve the problem of the step type water drop well that can not only realize a large drop of water but also realize the turning point of the water drop at the same time, and also solve the problem that the existing water drop well does not have three links or four links. Water flow turning problem; In addition, it also reduces the engineering quantity of the upstream inspection well and pipeline buried depth, reduces the project cost, and improves the safety of operation at the same time.

2. The water-falling spiral staircase can be used as a passage for going down to the well for maintenance in the future, from the top floor to the bottom of the well step by step, replacing conventional ladders or footwells, and improving the safety of maintenance workers going down the well.

3. Furthermore, since the gas in the water flow will overflow after the water flow falls, the stepped water drop well of this utility model is also equipped with a corresponding ventilation pipe for discharging the gas.

The conception, specific structure and technical effects of the present utility model will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present utility model.

Description of drawings

Fig. 1 is the plane structural diagram of the stepped water drop well of the present invention.

Fig. 2 is the plane structural diagram of the ladder-type drop well-0.60m platform of the present invention.

Fig. 3 is the plane structural diagram of the ladder-type drop well-2.40m platform of the utility model.

Fig. 4 is the plane structural diagram of the ladder-type drop well-5.25m platform of the utility model.

Fig. 5 is a sectional view along A-A in Fig. 1 .

Fig. 6 is a sectional view along B-B in Fig. 1 .

Explanation of reference signs: well body 1; spiral staircase 2; middle partition wall 3; inspection well cover 4; inspection well cover 5; water inlet pipe 6; water outlet pipe 7; ventilation pipe 8;

detailed description

List the preferred embodiments below, and illustrate the utility model more clearly and completely in conjunction with the accompanying drawings.

Example

The purpose of this utility model is achieved through the following technical solutions: as shown in Figures 1 to 6, the stepped water drop well (hereinafter referred to as the water drop well) provided by this embodiment includes a well body 1, where the pipelines meet and need to drop The water drop well is provided with a spiral staircase 2, and the drop well is also provided with at least two water inlet pipes 6 and at least one water outlet pipe 7. The water inlet pipes 6 and the water outlet pipes 7 are at any angle, which is used when the water flow enters from any direction. The well body 1 can all flow out from the same side after falling down the bottom of the well along the spiral ladder; the spiral staircase 2 is arranged along the inner side of the wall of the falling well, and the platforms of all levels of the spiral staircase are evenly arranged; wherein, the top of the first-level platform of the spiral staircase 2 The elevation is slightly lower than the elevation of the inner bottom of the water inlet pipe 6 (for example, it is enough to meet the reinforcement of the structural orifice reinforcement).

In addition, a middle partition wall 3 is also set in the center of the well body 1 to prevent the water flow from falling directly to the bottom of the well, to promote the water flow to the bottom of the well along the spiral staircase 2, and finally to the bottom of the well. The water flow can pass through the outlet pipe at the bottom of the well. 7 discharge.

As shown in Figure 5 and Figure 6, two manhole covers are arranged on the top of the spiral staircase 2 altogether, and one manhole cover 4 is opened to the first-level platform of the spiral staircase 2, which is used for the maintenance of the next person; the other manhole cover 5 Align with the centerline of the partition wall. During the construction of the manhole cover, it is used as a hoisting port for entering and exiting the construction formwork, and it can also be used as an inspection port for cleaning garbage after completion.

In addition, a hole is set in the center of the partition wall 3, which can go up to the ground and down to the bottom of the well.

In addition, the stepped water drop well of the present utility model is also equipped with a corresponding ventilation pipe 8 on the top plate of the water drop well for discharging gas. The outlet of vent pipe 8 stretches out the ground, and pipe mouth place is provided with cover type vent hole 801.

In order to prevent the solid matter in the pipeline from directly entering the spiral staircase, a stainless steel flat grid (not shown in the figure) is provided at the mouth of each water inlet pipe 6, which can be disassembled.

Since the spiral staircase will also be used for the maintenance of the descendants in the future, the width and elevation of the spiral staircase refer to the civil staircase, that is, the width is 250mm and the height is 150mm.

Therefore, the stepped water drop well of the present utility model can not only effectively solve the step type water drop well which can not only realize the large water drop but also realize the water drop turning point at the same time, but also solve the problem of water flow when the existing water drop well does not have three links or four links. turning point.

In addition, the utility model also reduces the engineering quantity of the upstream inspection well and pipeline burial depth, reduces the engineering cost, and improves the safety of operation at the same time.

Various preferred specific embodiments of the present utility model have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims .

Claims (5)

1. a staged drop well, it includes well body, it is characterised in that the inwall along drop well arranges spiral stairs；Described drop well also sets up at least two water inlet pipes and at least one outlet pipe, in any angle between described water inlet pipe and outlet pipe, for entering well body when current from any direction, all can flow out after rotating at the bottom of ladder back drop from the same side；Being provided with two manhole covers at the tip position of described spiral stairs side by side, wherein manhole cover described in communicates with the first order platform of spiral stairs, the center of another described manhole cover just central authorities to mid-board.

2. staged drop well as claimed in claim 1, it is characterised in that the top mark height of the first order platform of described spiral stairs is in the pipe inner bottom absolute altitude of described water inlet pipe.

3. staged drop well as claimed in claim 1, it is characterised in that being provided centrally with for intercepting the mid-board at the bottom of the direct back drop of current at described drop well, the center of septum wall offers hole.

4. staged drop well as claimed in claim 1, it is characterised in that be additionally provided with dismountable stainless steel flat plate grid at the mouth of pipe of each described water inlet pipe.

5. the staged drop well as described in any one in Claims 1 to 4, it is characterised in that the top board that against described drop well is also configured with the permeability cell for aerofluxus.