Vacuum flushing device

Abstract

The utility model discloses a vacuum flushing device, which relates to the technical field of regulation and storage tank flushing and comprises a shell and a cover body communicated with the shell, a water storage chamber is formed in the shell, and a closed cavity is formed in an area between the liquid level of water at the bottom of the water storage chamber and the top of the water storage chamber. A sealing assembly used for blocking or opening the closed cavity is arranged on the top of the cover body. An air exhaust pipeline used for exhausting air in the closed cavity is arranged on the closed cavity in a communicating manner; and the air inlet pipeline is used for inflating the interior of the closed cavity. Under the combined action that the sealing assembly opens the closed cavity and the air inlet pipeline inflates air, the vacuum state formed in the closed cavity can be quickly broken, in the process that the vacuum state is broken, water is not only subjected to the action of gravitational potential energy of the water, but also subjected to the pushing action of inflating the closed cavity through the air inlet pipeline, and therefore the water is prevented from entering the closed cavity. Therefore, the inside of the regulation and storage tank can be well flushed.

Description

Technical Field

[0001] The utility model relates to the technical field of flushing a regulating reservoir, in particular to a vacuum flushing device. Background Art

[0002] As a large-scale rainwater collection facility, the regulating reservoir is usually built in public places (such as city squares, green spaces and underground parking lots). The regulating reservoir can temporarily store the peak flow of rainwater runoff, and then slowly discharge the rainwater from the regulating reservoir after the maximum flow drops. This can not only avoid the peak of rainwater and realize the recycling of rainwater, but also avoid the pollution of the receiving water body by the initial rainwater, and play a positive role in the drainage scheduling between drainage areas.

[0003] During the rainwater temporary storage and collection process, the particulate impurities in the rainwater tend to settle at the bottom of the storage tank. Since the storage tank is located deep underground and the tank body itself is deep and large in area, manual cleaning would be time-consuming and laborious. Therefore, a vacuum flushing device is generally installed to achieve daily cleaning work.

[0004] After searching, the patent document with authorization announcement number CN220346781 U discloses a vacuum flushing device, which first fixes the working position of the vacuum pump through a mounting plate, and at the same time fixes the working position of the water storage chamber, and evacuates the water storage chamber through a vacuum pump, so that the water storage chamber reaches a negative pressure state, and the water in the regulating reservoir is pumped into the water storage chamber through the water storage chamber, and the working position of the maintenance component is fixed through a water storage pipe, and then the working position of the vacuum filter component is fixed through the maintenance component, so as to achieve the effect of facilitating the maintenance of the vacuum filter component, and then the air in the water storage chamber is pumped through the vacuum filter component in cooperation with the vacuum pump, while preventing impurities in the water storage chamber from entering the vacuum pump, and finally, the air entering the water storage pipe is filtered through the air intake filter component connected to the water storage pipe to prevent impurities in the air from entering the water storage pipe, thereby reducing the working pressure of the vacuum filter component.

[0005] When the above device is in use, it prevents large particles of impurities in the air from entering the water storage pipe, reduces the working pressure of the vacuum filter component, and increases the service life. However, when the negative pressure environment in the water storage pipe is broken, the water in the water storage pipe will only fall naturally due to the gravitational potential energy and flush the regulating reservoir; the impact of the water in this state on the inside of the regulating reservoir is single and the impact is small, and the flushing effect on the regulating reservoir is poor. At the same time, breaking the vacuum state in the water storage pipe is achieved by starting the solenoid valve. When the circuit in the solenoid valve has a fault such as poor contact, the solenoid valve cannot work normally and cannot break the vacuum state in the water storage pipe, which is inconvenient to use.

[0006] Therefore, we propose a new vacuum flushing device to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to propose a vacuum flushing device in order to solve the problems in the prior art. By adding additional air pressure in the vacuum flushing device, at the moment the vacuum state is broken, the water body will not only be affected by its own potential energy, but also by the pushing effect of the additional air pressure, so that the water body in this state has a greater impact on the regulating reservoir and the flushing effect is better.

[0008] In order to solve the above problems, the utility model provides the following technical solutions:

[0009] A vacuum flushing device includes a shell placed inside a regulating reservoir and a cover body arranged on the top of the shell and connected to the shell, the interior of the shell constitutes a water storage chamber, and the area between the water level at the bottom of the water storage chamber and the top of the water storage chamber forms a closed chamber, the top of the cover body is provided with a sealing component for blocking or opening the closed chamber; the closed chamber is connected to a suction pipe for suctioning air inside the closed chamber; and also includes an air intake pipe, which is used to inflate the inside of the closed chamber.

[0010] As a further solution of the utility model: the air extraction pipeline and the air intake pipeline are jointly formed into a first air charging and discharging pipeline.

[0011] As a further solution of the utility model: the sealing assembly includes a sealing plate for sealing or opening a closed chamber and a driving member arranged on the cover body, the driving member includes a rubber diaphragm fixedly arranged on the top inner wall of the cover body, and a closed control area is formed between the rubber diaphragm and the top inner wall of the cover body, and the size of the closed control area can be adjusted by gas action; a connecting rod is sealingly fixed on the rubber diaphragm, one end of which extends downward and fixes the sealing plate.

[0012] As a further solution of the utility model: the rubber diaphragm is provided with an assembly hole for the connecting rod to pass through, the connecting rod is sleeved with two sealing washers, and the two sealing washers are respectively located at the top and bottom of the assembly hole, the connecting rod is configured as a threaded rod, and the connecting rod is respectively threaded with a cap nut and a hexagonal nut for pressing the sealing washers against the assembly hole.

[0013] As a further solution of the utility model: it also includes a compression spring with a vertical axis, and the two ends of the compression spring are respectively arranged on the top inner wall of the cover body and the rubber diaphragm, so as to provide the rubber diaphragm with a restoring force, and the direction of action of the restoring force is the same as the retraction direction of the rubber diaphragm under gas suction.

[0014] As a further solution of the utility model: a second air-charging and air-discharging pipe is connected to the closed control area, and the second air-charging and air-discharging pipe is used to evacuate or inflate air into the closed control area.

[0015] As a further solution of the utility model: it also includes a supply device connected to the first air-charging and air-discharging pipe and the second air-charging and air-discharging pipe, and the supply device is used to drive the first air-charging and air-discharging pipe and the second air-charging and air-discharging pipe to evacuate or inflate.

[0016] As a further solution of the utility model: a Y-shaped gasket is arranged at the bottom of the sealing plate, and the Y-shaped gasket is used to seal between the bottom of the sealing plate and the end of the flange; the top of the shell is connected to the cover body through a flange, a rubber sealing ring is arranged at the bottom of the flange, and the rubber sealing ring is used to seal between the end of the flange and the top of the shell.

[0017] As a further solution of the utility model: a ferrule-type end-butted right-angle pipe joint is provided on the closed control area, and the second inflation and deflation pipeline is connected to the closed control area via the ferrule-type end-butted right-angle pipe joint.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. Through the setting of the air intake pipe, when the sealing component covers and blocks the closed chamber, air is extracted into the closed chamber through the air extraction pipe, so that the closed chamber forms a vacuum state, and the water level inside the shell rises at this time; when the water level rises to the specified position, the sealing component can open the closed chamber, and at the same time, air is inflated into the closed chamber through the air intake pipe. Under the joint action of the sealing component opening the closed chamber and the air inlet pipe inflating, the vacuum state formed by the closed chamber can be quickly broken, and in the process of breaking the vacuum state, the water body is not only affected by its own gravitational potential energy, but also by the pushing effect of the air inlet pipe inflating the closed chamber, so that the water body is subjected to a large impact force at the moment when the vacuum state is broken, so that the inside of the storage tank can be well flushed, and the flushing effect is good;

[0020] 2. Through the setting of the sealing assembly, when the sealing plate covers and blocks the closed chamber, when the first inflation and deflation pipe inflates the closed chamber, the second inflation and deflation pipe can be used to evacuate the airtight control area. At this time, the sealing plate will not only be subjected to the pulling force of the rubber diaphragm, but also to the upward squeezing force of the closed chamber on the sealing plate. The sealing plate can move upward quickly to quickly break the vacuum state inside the closed chamber. Compared with the technical solution of setting a solenoid valve to break the vacuum state in the prior art, the utility model has diversified ways to break the vacuum state through the setting of the second inflation and deflation pipe, and can avoid the risk of being unable to break the vacuum state when the solenoid valve fails.

[0021] 3. Through the setting of the compression spring, when the sealing plate blocks the closed chamber, the compression spring inside the closed control area is in a stretched state. Then, when the sealing plate is forced to move upward, the compression spring will also exert an upward thrust on the sealing plate, so that the sealing plate can move upward faster, that is, the vacuum state inside the closed chamber can be further and quickly broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0024] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0025] In the figure: 1. shell; 2. flange; 3. cover; 4. rubber diaphragm; 5. sealing gasket; 6. rubber sealing ring; 7. cap nut; 8. compression spring; 9. hexagonal nut; 10. sealing plate; 11. connecting rod; 12. Y-type gasket; 13. ferrule-type end-to-end right-angle pipe joint; 14. supply equipment; 15. closed chamber; 16. closed control area; 17. first charging and discharging pipe; 18. second charging and discharging pipe; a. water level. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-Figure 2 As shown, a vacuum flushing device comprises a shell 1 placed inside a regulating reservoir and a cover 3 arranged on the top of the shell 1 and connected to the shell 1, the inside of the shell 1 constitutes a water storage chamber, and the area between the water level a at the bottom of the water storage chamber and the top of the water storage chamber forms a closed chamber 15, and a sealing component for blocking or opening the closed chamber 15 is arranged on the top of the cover 3; an exhaust pipe for exhausting air inside the closed chamber 15 is connected to the closed chamber 15; and an air intake pipe is also included, and the air intake pipe is used to inflate the inside of the closed chamber 15. Preferably, the exhaust pipe and the air intake pipe are used together to form a first charging and discharging pipe 17, and the corresponding charging and discharging functions of the first charging and discharging pipe 17 can be used to perform exhaust and inflation work.

[0028] In the initial state, the sealing component blocks the closed chamber 15. When it is necessary to clean the inside of the regulating and storage tank, the first charging and discharging pipe 17 can be used to evacuate the closed chamber 15. At the same time, under the cooperation of atmospheric pressure, the water level a located inside the water storage chamber will move upward. When the water level a moves to a specified height position, the first charging and discharging pipe 17 can be stopped from evacuating the closed chamber 15. At this time, the closed chamber 15 will be adjusted to be smaller and form a vacuum state. Then the first charging and discharging pipe 17 is made to inflate the inside of the closed chamber 15, and at the same time, the sealing component is also made to open the closed chamber 15. Under the combined action of the inflation process of the first charging and discharging pipe 17 and the opening of the sealing component, the vacuum state inside the closed chamber 15 can be instantly broken. At this time, the water inside the shell 1 will not only be affected by its own gravitational potential energy, but also by the downward push of the air pressure inside the closed chamber 15. The water in this state will have a better flushing effect on the inside of the regulating and storage tank, and it is convenient to use.

[0029] Regarding the setting of the sealing assembly in the above, the sealing assembly includes a sealing plate 10 for blocking or opening the closed chamber 15 and a driving member arranged on the cover body 3. The cover body 3 is provided with a plurality of vents. The top of the shell 1 is connected to the cover body 3, and the driving member is used to drive the sealing plate 10 to approach or move away from the top of the shell 1, so as to achieve the blocking or opening of the closed chamber 15 by the sealing plate 10. During the flushing process of the regulating reservoir, when the vacuum state of the closed chamber 15 needs to be broken, the sealing plate 10 is driven to move upward by the driving member, that is, the sealing plate 10 has a tendency to open the closed chamber 15.

[0030] In this embodiment, on the basis of setting the first gas charging and discharging pipe 17, the driving member provided includes a rubber diaphragm 4 fixedly provided on the inner wall of the top of the cover body 3, and a closed control area 16 is formed between the rubber diaphragm 4 and the inner wall of the top of the cover body 3, and the size of the closed control area 16 is adjustable through the action of gas; a connecting rod 11 is sealedly fixed on the rubber diaphragm 4, and one end of the connecting rod 11 extends downward and fixes the sealing plate 10. A second gas charging and discharging pipe 18 is connected to the closed control area 16, and the second gas charging and discharging pipe 18 is used to evacuate or inflate the closed control area 16.

[0031] During the flushing process of the regulating reservoir, when it is necessary to break the vacuum state of the closed chamber 15, the second charging and discharging pipe 18 can be used to evacuate the air in the closed control area, and then the rubber diaphragm 4 will move upward and deform. Under the action of the air pressure inside the closed chamber 15 and the deformation of the rubber diaphragm 4, the connecting rod 11 will drive the sealing plate 10 to move upward, that is, the sealing plate 10 opens the closed chamber 15, and the vacuum state of the closed chamber 15 is broken. When the sealing plate 10 is needed to block the closed chamber 15, the second charging and discharging pipe 18 can be used to inflate the inside of the closed chamber 15. At this time, the first charging and discharging pipe 17 does not work, and then the rubber diaphragm 4 will move downward to reset and drive the connecting rod 11 and the sealing plate 10 to move downward until the sealing plate 10 covers the top of the shell 1 to block the closed chamber 15.

[0032] like Figure 2 As shown, for the sealing arrangement of the connecting rod 11 on the rubber diaphragm 4, an assembly hole for the connecting rod 11 to pass through can be opened on the rubber diaphragm 4, two sealing washers 5 are sleeved on the connecting rod 11, and the two sealing washers 5 are respectively located at the top and bottom of the assembly hole, the connecting rod 11 is set as a threaded rod, and the connecting rod 11 is respectively threaded with a cap nut 7 and a hexagonal nut 9 for pressing the sealing washers 5 against the assembly hole. Through the arrangement of the cap nut 7 and the hexagonal nut 9, the connecting rod 11 can be easily disassembled during subsequent maintenance.

[0033] In order to drive the rubber diaphragm 4 to move the sealing plate 10 upward faster and release the vacuum state of the closed chamber 15 during the process of evacuating air from the second air-charging and air-discharging pipe 18 to the closed control area 16, the present embodiment also includes a compression spring 8 with a vertical axis, and the two ends of the compression spring 8 are respectively arranged on the top inner wall of the cover body 3 and the rubber diaphragm 4, so as to provide the rubber diaphragm 4 with a reset force, and the action direction of the reset force is the same as the retraction direction of the rubber diaphragm 4 under the gas suction. Of course, in actual use, the compression spring 8 can also be set as an elastic member in other conventional technical means in the prior art. During the process of evacuating air from the second air-charging and air-discharging pipe 18 to the closed control area 16, the sealing control area 16 drives the sealing plate 10 to move downward until it covers the closed chamber 15, and the compression spring 8 is stretched. Then, during the process of evacuating air from the second air filling and discharging pipe 18 to the closed control area 16, while the rubber diaphragm 4 itself is deformed, the rubber diaphragm 4 is also subjected to the elastic restoring effect of the compression spring 8, and then under the joint cooperation of the two effects, the rubber diaphragm 4 can move upward more quickly, and then drive the sealing plate 10 to move upward more quickly, because a plurality of air vents are provided on the cover body 3, and then the upward movement of the sealing plate 10 can make the closed chamber 15 quickly connected with the outside world through the plurality of air vents, that is, quickly break the vacuum state of the closed chamber 15.

[0034] In this embodiment, with the combined effect of the first air-charging and air-discharging pipe 17 on inflating the closed chamber 15, the second air-charging and air-discharging pipe 18 on evacuating the closed control area 16, and the elastic effect of the compression spring 8, the vacuum state inside the closed chamber 15 can be quickly broken, and the water inside the shell 1 can flush the inside of the regulating reservoir at a faster speed.

[0035] After the sealing plate 10 seals and covers the closed chamber 15, in order to improve the sealing between the sealing plate 10 and the closed chamber 15, a Y-shaped gasket 12 can be provided at the bottom of the sealing plate 10, and the Y-shaped gasket 12 is used to seal between the bottom of the sealing plate 10 and the end of the flange 2; the top of the shell 1 and the cover body 3 are connected through the flange 2, and a rubber sealing ring 6 is provided at the bottom of the flange 2, and the rubber sealing ring 6 is used to seal between the end of the flange 2 and the top of the shell 1.

[0036] Furthermore, the present embodiment also includes a supply device 14 connected to the first and second air-charging and air-discharging pipes 17 and 18, and the supply device 14 is used to drive the first and second air-charging and air-discharging pipes 17 and 18 to evacuate or inflate. Among them, a ferrule-type end-to-end right-angle pipe joint 13 is provided on the closed control area 16, and the second air-charging and air-discharging pipe 18 is connected to the closed control area 16 through the ferrule-type end-to-end right-angle pipe joint 13. Specifically, the supply device 14 can be a vacuum pump in the prior art, or a combination of a vacuum pump and a high-pressure air pump, or a combination of a vacuum pump and other conventional means, or other conventional technical means in the prior art. In order to avoid cumbersome writing, this article will not go into details here.

[0037] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A vacuum flushing device, characterized in that: The invention comprises a shell (1) arranged inside a regulating reservoir, and a cover (3) arranged on the top of the shell (1) and connected to the shell (1); the interior of the shell (1) constitutes a water storage chamber, and the area between the water body liquid surface (a) at the bottom of the water storage chamber and the top of the water storage chamber forms a closed chamber (15); the top of the cover (3) is provided with a sealing component for blocking or opening the closed chamber (15); the closed chamber (15) is connected with an exhaust pipe for exhausting air inside the closed chamber (15); and the cover also comprises an air intake pipe, which is used to inflate the inside of the closed chamber (15).

2. A vacuum flushing device according to claim 1, characterized in that: The air extraction pipeline and the air intake pipeline are used together to form a first air charging and discharging pipeline (17).

3. A vacuum flushing device according to claim 2, characterized in that: The sealing assembly comprises a sealing plate (10) for blocking or opening a closed chamber (15) and a driving member arranged on a cover body (3); the driving member comprises a rubber diaphragm (4) fixedly arranged on the top inner wall of the cover body (3); a sealed control area (16) is formed between the rubber diaphragm (4) and the top inner wall of the cover body (3); and the size of the sealed control area (16) is adjustable through the action of gas; a connecting rod (11) is sealedly fixed on the rubber diaphragm (4), and one end of the connecting rod (11) extends downward and fixes the sealing plate (10).

4. A vacuum flushing device according to claim 3, characterized in that: The rubber diaphragm (4) is provided with an assembly hole for a connecting rod (11) to pass through, and two sealing washers (5) are sleeved on the connecting rod (11), and the two sealing washers (5) are respectively located at the top and bottom of the assembly hole. The connecting rod (11) is a threaded rod, and the connecting rod (11) is threadedly matched with a cap nut (7) and a hexagonal nut (9) for pressing the sealing washers (5) against the assembly hole.

5. A vacuum flushing device according to claim 3 or 4, characterized in that: It also includes a compression spring (8) with a vertical axis, and the two ends of the compression spring (8) are respectively arranged on the top inner wall of the cover body (3) and the rubber diaphragm (4), so as to provide the rubber diaphragm (4) with a restoring force, and the direction of action of the restoring force is the same as the retraction direction of the rubber diaphragm (4) under the gas suction force.

6. A vacuum flushing device according to claim 5, characterized in that: The enclosed control area (16) is connected to a second air-charging and air-discharging pipeline (18), and the second air-charging and air-discharging pipeline (18) is used to evacuate or inflate air into the enclosed control area (16).

7. A vacuum flushing device according to claim 6, characterized in that: It also includes a supply device (14) connected to the first air-charging and air-discharging pipeline (17) and the second air-charging and air-discharging pipeline (18), and the supply device (14) is used to drive the first air-charging and air-discharging pipeline (17) and the second air-charging and air-discharging pipeline (18) to evacuate or inflate.

8. A vacuum flushing device according to claim 3, characterized in that: A Y-shaped gasket (12) is arranged at the bottom of the sealing plate (10), and the Y-shaped gasket (12) is used to seal between the bottom of the sealing plate (10) and the end of the flange (2); the top of the shell (1) and the cover body (3) are connected via the flange (2), a rubber sealing ring (6) is arranged at the bottom of the flange (2), and the rubber sealing ring (6) is used to seal between the end of the flange (2) and the top of the shell (1).

9. A vacuum flushing device according to claim 7, characterized in that: The sealed control area (16) is provided with a sleeve-type end-butted right-angle pipe joint (13), and the second gas filling and deflation pipeline (18) is connected to the sealed control area (16) via the sleeve-type end-butted right-angle pipe joint (13).

Images