A new type of vacuum flushing device

Abstract

The present invention discloses a novel vacuum flushing device, which includes a base fixed to the top of a water storage chamber and a vacuum pump disposed on the base for sucking air. One end of the vacuum pump is connected to a vacuum extraction pipeline, and the other end of the vacuum extraction pipeline is disposed inside the water storage chamber. An air pressure increasing and relieving mechanism is provided at the upper end of the base. The air pressure increasing and relieving mechanism includes a sealing assembly and a lifting assembly. The downward movement of the lifting assembly drives the sealing assembly to descend, so that the sealing assembly seals the orifice groove at the upper part of the water storage chamber, ensuring the overall sealing performance of the water storage chamber when a vacuum is formed in the water storage chamber, increasing the pressure inside the water storage chamber, causing a vacuum to be formed in the water storage chamber, and water in the reservoir to enter the water storage chamber. The upward movement of the lifting assembly drives the sealing assembly to ascend, so that the sealing assembly disengages from the orifice groove at the upper part of the water storage chamber. When the vacuum pump stops, the pressure relief efficiency inside the water storage chamber is greatly improved, and the potential energy of the water body is instantly released to achieve the purpose of flushing; an air filtering assembly can effectively prevent blockage in the vacuum pump.

Description

Technical Field

[0001] The present invention relates to the technical field of sediment cleaning at the bottom of a reservoir, and specifically relates to a novel vacuum flushing device. Background Art

[0002] With the development of social economy and the continuous improvement of living standards, people have put forward higher requirements for the living environment. China has proposed corresponding solutions to adapt to environmental changes and cope with natural disasters brought by rainwater. Sponge City is a new concept measure for rainwater and flood management. Aiming at rainwater and flood water bodies, new processes and practices for reservoirs or catch basins have been proposed to achieve the purposes of storing for infiltration, storing for use, and storing for drainage.

[0003] Since rainwater contains a large amount of suspended solids and particulate matter, etc., after staying in a reservoir or catch basin, these pollutants in the water will deposit at the bottom of the pool. Long-term deposition and in a sealed space will not only form substances that cause blackening and odor, but also occupy the water storage volume of the pool body.

[0004] CN104196118B discloses a pool automatic vacuum flushing and dredging device and method. This device is used for flushing and dredging the pool. After the water in the pool enters the flushing chamber through a vacuum pump and a vacuum diaphragm valve and reaches a set height, the vacuum diaphragm valve is closed and the remaining water in the pool is drained. The siphon unit prevents the flushing water in the flushing chamber from entering the reservoir. By opening the vacuum diaphragm valve, the flushing water in the flushing chamber enters the pool and takes away the sludge in the pool. However, the sealing performance of the water storage chamber is not good, resulting in an ineffective formation of a true vacuum state in the reservoir. At the same time, when the vacuum pump stops, the pressure relief in the water storage chamber is slow, resulting in poor water impact force from the water storage chamber into the reservoir, and most of the blackening and odor-causing sludge still remains at the bottom of the pool; and due to a large amount of suspended solids and particulate matter in the pool water, the vacuum pump is extremely likely to cause a large amount of suspended solids and particulate matter to enter the vacuum pump when sucking air, resulting in blockage of the vacuum pump and affecting the overall use. Therefore, it is urgent for those skilled in the art to design a novel vacuum flushing device. Summary of the Invention

[0005] The problem to be solved by the present invention is that the sealing component is driven to descend by the descending movement of the lifting component, so that the sealing component seals the groove on the upper part of the water storage chamber, which can effectively ensure the overall sealing of the water storage chamber when the water storage chamber gradually forms a vacuum, increase the pressure in the water storage chamber, form a vacuum in the water storage chamber, and the water in the reservoir enters the water storage chamber. The sealing component is driven to rise by the ascending movement of the lifting component, so that the sealing component is separated from the groove on the upper part of the water storage chamber, and the pressure relief efficiency in the water storage chamber is greatly improved when the vacuum pump stops, so that the potential energy of the water body is released instantly to achieve the purpose of flushing; the filter can preliminarily filter a large amount of suspended matter and particulate matter in the air when the vacuum pump sucks air, and then the air filter can filter the inhaled air again to achieve the effect of double filtration, thereby effectively preventing blockage in the vacuum pump. A new type of vacuum flushing device.

[0006] In order to solve the above problems, the present invention provides a new type of vacuum flushing device, including a base fixed to the top of a water storage chamber and a vacuum pump arranged on the base to suck air, one end of the vacuum pump is connected to a vacuum pipe, and the other end of the vacuum pipe is arranged in the water storage chamber. A pressure increasing and releasing mechanism is provided at the upper end of the base, and the pressure increasing and releasing mechanism includes a sealing assembly and a lifting assembly. The sealing assembly is arranged at the upper end of the base, and a lifting assembly is provided at the upper end of the sealing assembly. The lifting part of the lifting assembly is fixedly connected to the sealing assembly to drive it to move up and down. The connecting parts at both ends of the lifting assembly are fixedly connected to a supporting connecting member, and the supporting connecting member is a hollow structure. The sealing assembly is arranged in a give way groove of the supporting connecting member, and one end of the vacuum pipe is arranged in the water reservoir and connected to the air filter assembly.

[0007] Preferably, the protective cover is arranged at the upper end of the base and the sealing assembly, the lifting assembly and the supporting connector are arranged therein.

[0008] Preferably, the sealing assembly comprises a sealing protrusion connector and a sealing pressure plate, wherein the sealing protrusion connector is arranged at the upper end of the base, and both ends of the sealing pressure plate are in contact with the sealing protrusion connector.

[0009] Preferably, the lifting part of the lifting assembly is an actuator cylinder, and the connecting part is a cylinder seat. The actuator cylinder is arranged in the cylinder seat. The piston rod of the actuator cylinder is fixedly connected to the sealing pressure plate through a coupling. The actuator cylinder drives the sealing pressure plate to move up and down, so that the sealing pressure plate and the sealing protrusion connecting piece are compacted and sealed or separated.

[0010] Preferably, the supporting connection piece is a connecting flange, and both ends of the cylinder seat are fixedly connected to the supporting connection piece.

[0011] Preferably, a liquid level meter is provided on the base, and the liquid level meter extends downward and is disposed in the water reservoir.

[0012] Preferably, the actuating cylinder is provided with P1 and P2 channels. The P1 channel is connected to the vacuum pumping pipeline, and the P2 channel is connected to the air supply device. Solenoid valves are installed on both the P1 and P2 channels.

[0013] Preferably, the air filtering assembly includes an air filter and a filter screen. The filter screen is fixedly arranged in the connecting seat. Threaded protrusions are provided on the outer wall of the connecting seat, and threaded grooves are provided on the inner side of one end of the air filter. The threaded protrusions and the threaded grooves are rotationally detachably connected.

[0014] Adopting the above structure, the beneficial effects are as follows:

[0015] At the upper end of the base of the present invention, a pressure increasing and relieving mechanism is provided. The pressure increasing and relieving mechanism includes a sealing assembly and a lifting assembly. The sealing assembly is arranged at the upper end of the base, and the lifting assembly is arranged at the upper end of the sealing assembly. The lifting part of the lifting assembly is fixedly connected to the sealing assembly to drive it to move up and down. Through the downward movement of the lifting assembly, the sealing assembly is driven to descend, so that the sealing assembly seals the mouth groove at the upper part of the water storage chamber, which can effectively ensure the overall sealing performance of the water storage chamber when a vacuum is gradually formed in the water storage chamber, increase the pressure in the water storage chamber, so that a vacuum is formed in the water storage chamber, and the water in the water storage tank enters the water storage chamber. Through the upward movement of the lifting assembly, the sealing assembly is driven to rise, so that the sealing assembly is separated from the mouth groove at the upper part of the water storage chamber, which can greatly improve the pressure relief efficiency in the water storage chamber when the vacuum pump stops, so that the water potential energy is instantly released to achieve the purpose of flushing, and the water impact effect of the water flowing from the water storage chamber into the water storage tank is excellent.

[0016] One end of the vacuum pumping pipeline of the present invention is arranged in the water storage tank and is connected to the air filtering assembly. The air filtering assembly includes an air filter and a filter screen. The filter screen can preliminarily filter a large amount of suspended substances and particulate matters in the air when the vacuum pump sucks air. Then, the air filter can filter the inhaled air again to achieve the effect of double filtration, effectively preventing blockage in the vacuum pump. The filter screen is fixedly arranged in the connecting seat. Threaded protrusions are provided on the outer wall of the connecting seat, and threaded grooves are provided on the inner side of one end of the air filter. The threaded protrusions and the threaded grooves are rotationally detachably connected, which can effectively ensure the fixation of the air filter and the connecting seat, and is convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the novel vacuum flushing device of the present invention when it is opened.

[0018] Figure 2 is a schematic structural diagram of the novel vacuum flushing device of the present invention when it is closed.

[0019] Figure 3 is a schematic structural diagram of the actuating cylinder.

[0020] Figure 4 It is a schematic diagram of the structure of a vacuum pump.

[0021] In the figure: 1 - base, 2 - sealing assembly, 201 - sealing projection connecting piece, 202 - sealing pressing plate, 3 - lifting assembly, 301 - actuating cylinder, 302 - cylinder seat, 4 - support connecting piece, 5 - protective cover, 6 - vacuum pump, 7 - relief groove, 8 - vacuum extraction pipeline, 9 - air filtering assembly, 901 - air filter, 902 - filter screen, 903 - connecting seat, 904 - thread projection, 905 - thread groove, 10 - liquid level gauge, 11 - water storage chamber, 12 - reservoir. Detailed implementation mode

[0022] The present invention will be further explained and described below with reference to the accompanying drawings and embodiments.

[0023] A novel vacuum flushing device includes a base 1 fixed to the top of the water storage chamber and a vacuum pump 6 disposed on the base for sucking air. One end of the vacuum pump 6 is connected to a vacuum extraction pipeline 8, and the other end of the vacuum extraction pipeline 8 is disposed inside the water storage chamber. An air pressure increasing and relieving mechanism is provided at the upper end of the base 1. The air pressure increasing and relieving mechanism includes a sealing assembly 2 and a lifting assembly 3. The sealing assembly 2 is disposed at the upper end of the base 1, and the lifting assembly 3 is provided at the upper end of the sealing assembly 2. The lifting part of the lifting assembly 3 is fixedly connected to the sealing assembly 2 to drive it to move up and down. The connecting parts at both ends of the lifting assembly 3 are fixedly connected to a support connecting piece 4. The support connecting piece 4 is of a hollow structure. The sealing assembly 2 is disposed in a relief groove 7 of the support connecting piece 4. One end of the vacuum extraction pipeline 8 disposed in the reservoir is connected to an air filtering assembly 9.

[0024] The protective cover 5 is disposed at the upper end of the base 1 and houses the sealing assembly 2, the lifting assembly 3 and the support connecting piece 4 therein.

[0025] The sealing assembly 2 includes a sealing projection connecting piece 201 and a sealing pressing plate 202. The sealing projection connecting piece 201 is disposed at the upper end of the base 1, and both ends of the sealing pressing plate 202 are in contact with the sealing projection connecting piece 201.

[0026] The lifting part of the lifting assembly 3 is an actuating cylinder 301, and the connecting part is a cylinder seat 302. The actuating cylinder 301 is disposed inside the cylinder seat 302. The piston rod of the actuating cylinder 301 is fixedly connected to the sealing pressing plate 202 through a coupling. The actuating cylinder 301 drives the sealing pressing plate 4 to move up and down, so that the sealing pressing plate 202 is pressed against and sealed with the sealing projection connecting piece 201 or separated from it.

[0027] The support connecting piece 4 is a connecting flange, and both ends of the cylinder seat 302 are fixedly connected to the support connecting piece 4.

[0028] A liquid level gauge 10 is provided on the base 1, and the liquid level gauge 10 extends downward and is arranged in the reservoir.

[0029] The actuating cylinder 301 is provided with two channels P1 and P2. The P1 channel is connected to the vacuum extraction pipeline 8, and the P2 channel is connected to the air supply device. Solenoid valves are installed on both the P1 and P2 channels.

[0030] The air filtering assembly 9 includes an air filter 901 and a filter screen 902. The filter screen 902 is fixedly arranged in the connecting seat 903. Threaded protrusions 904 are provided on the outer wall of the connecting seat 903. Threaded grooves 905 are provided on the inner side of one end of the air filter 901. The threaded protrusions 904 and the threaded grooves 905 are connected in a rotationally separable manner.

[0031] To facilitate the understanding of the above technical solution of the present invention, the following provides a detailed description of the above technical solution of the present invention through specific usage methods.

[0032] The specific working process is as follows: During operation, the operator starts the actuating cylinder 301 of the lifting assembly 3. The piston rod of the actuating cylinder 301 moves downward, thereby driving the sealing pressing plate 202 of the sealing assembly 2 to move downward, so that both ends of the sealing pressing plate 202 are in contact with the sealing protrusion connecting member 201, and the sealing pressing plate 202 and the sealing protrusion connecting member 20 are compacted to seal the water storage chamber. Then, the operator starts the vacuum pump 6. The filter screen 902 of the air filtering assembly 9 initially filters a large number of suspended substances and particulate matters in the air when the vacuum pump 6 sucks air. Then, the air filter 901 filters the inhaled air again, making the water storage chamber 11 form a vacuum. Thus, the water in the reservoir 12 enters the water storage chamber, the liquid level in the water storage chamber rises, the liquid level gauge 10 detects the liquid level in the water storage chamber and sends a signal to the liquid level controller connected thereto. When the liquid level reaches the set value of the liquid level controller, the operator turns off the vacuum pump 6 and turns off the actuating cylinder 301. The actuating cylinder 301 retracts upward, driving the sealing pressing plate 202 to move upward, so that both ends of the sealing pressing plate 202 are separated from the sealing protrusion connecting member 201. The pressure in the water storage chamber is relieved quickly, the vacuum in the water storage chamber is broken, and the potential energy of the water body is instantly released. Thus, the water in the water storage chamber flushes into the reservoir 12 to achieve the purpose of flushing the bottom of the reservoir.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. Unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] It should be noted that in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device including the said element.

[0035] The above are only specific embodiments of the present invention, which enable those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features described herein.

Claims

1. A novel vacuum flushing device, comprising a base (1) fixed to the top of a water storage chamber and a vacuum pump (6) disposed on the base for sucking air. One end of the vacuum pump (6) is connected to a vacuum pumping pipeline (8), and the other end of the vacuum pumping pipeline (8) is disposed inside the water storage chamber. Characterized in that: An air pressure increasing and relieving mechanism is provided at the upper end of the base (1). The air pressure increasing and relieving mechanism includes a sealing component (2) and a lifting component (3). The sealing component (2) is disposed at the upper end of the base (1), and the lifting component (3) is provided at the upper end of the sealing component (2). The connecting parts at both ends of the lifting component (3) are fixedly connected to a support connecting member (4). The support connecting member (4) is of a hollow structure. The sealing component (2) is disposed in a relief groove (7) of the support connecting member (4). One end of the vacuum pumping pipeline (8) disposed inside the water storage tank is connected to an air filtering component (9). A protective cover (5) is disposed at the upper end of the base (1) and houses the sealing component (2), the lifting component (3) and the support connecting member (4) therein. The sealing component (2) includes a sealing convex connecting member (201) and a sealing pressing plate (202). The sealing convex connecting member (201) is disposed at the upper end of the base (1), and both ends of the sealing pressing plate (202) are in fit with the sealing convex connecting member (201). The lifting part of the lifting component (3) is an actuating cylinder (301), and the connecting part is a cylinder seat (302). The actuating cylinder (301) is disposed inside the cylinder seat (302). The piston rod of the actuating cylinder (301) is fixedly connected to the sealing pressing plate (202) through a coupling. The actuating cylinder (301) drives the sealing pressing plate (202) to move up and down, so that the sealing pressing plate (202) is pressed and sealed with or separated from the sealing convex connecting member (201).

2. The novel vacuum flushing device according to claim 1, Characterized in that: The support connecting member (4) is a connecting flange, and both ends of the cylinder seat (302) are fixedly connected to the support connecting member (4).

3. The novel vacuum flushing device according to claim 1, Characterized in that: A liquid level gauge (10) is provided on the base (1), and the liquid level gauge (10) extends downward and is disposed inside the water storage tank.

4. The novel vacuum flushing device according to claim 1, Characterized in that: The actuating cylinder (301) is provided with P1 and P2 channels. The P1 channel is connected to the vacuum pumping pipeline (8), and the P2 channel is connected to a gas supply device. Solenoid valves are installed on both the P1 and P2 channels.

5. The novel vacuum flushing device according to claim 1, Characterized in that: The air filtering component (9) includes an air filter (901) and a filter screen (902). The filter screen (902) is fixedly disposed inside a connecting seat (903). Threaded protrusions (904) are provided on the outer wall of the connecting seat (903). Threaded grooves (905) are provided on the inner side of one end of the air filter (901). The threaded protrusions (904) and the threaded grooves (905) are rotationally detachably connected.

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