Non-negative pressure water supply device and water supply method

Abstract

The present application relates to non-negative pressure water supply technical field, specifically to a kind of non-negative pressure water supply equipment and water supply method, including box, and box top surface is connected with water inlet pipe, the box side is connected with flow guide pipe, and flow guide pipe is connected with multiple pressure increasing mechanism, and box interior is provided with vacuum suppressor and steady flow compensator, the box interior is provided with circulating mechanism, and circulating mechanism interior is provided with cleaning mechanism, the cleaning mechanism side is provided with driving mechanism.In the present application, by starting circulating mechanism, make circulating mechanism the part of water flow inside the water tank located at the bottom of the box into the water tank located at the top of the box, make water flow produce flow, and then water flow enters the interior of cleaning mechanism, and then driving mechanism drives cleaning mechanism to clean and filter water flow, so that water flow reflows into the water tank located at the bottom of the box, to clean the water flow inside the water tank, reduce internal impurities, so that water flow inside the water tank is not easy to deteriorate, reduce sediment production.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-negative pressure water supply, in particular to a non-negative pressure water supply equipment and a water supply method. BACKGROUND

[0002] The non-negative pressure water supply equipment is a new type of water supply pressurizing equipment in recent years, mainly used for secondary pressurizing water supply equipment of series connection pressure superposition water supply on the basis of residual pressure of municipal pipe network. Generally, the non-negative pressure water supply equipment sets the working pressure of the water use point according to the actual situation, and monitors the pressure of the municipal pipe network at any time. When the pressure is lower than the required pressure of the user, the microcomputer automatically controls the sub-frequency converter to start, adjusts the rotating speed of the water pump to increase, until the pressure of the pipe network rises to the required pressure of the user, and controls the water pump to run at a constant rotating speed for constant pressure water supply. When the water consumption increases, the rotating speed increases, and when the water consumption decreases, the rotating speed decreases, so as to ensure the constant pressure of the water use of the user. The lower the pressure of the tap water is, the higher the rotating speed of the water pump is. The higher the pressure of the tap water is, the lower the rotating speed of the water pump is. When the pressure of the tap water is not less than the required pressure of the user, the water pump stops running.

[0003] The existing non-negative pressure water supply equipment is generally matched with a water storage tank for storing and taking water source, which can use the water tank as a standby water source of the whole system. When the pressure of the tap water pipe network is insufficient or there is no water, it can supply water to ensure the stability and continuity of water supply. At the same time, in case of danger such as fire, it can also be used as a standby water source. The existing non-negative pressure water supply equipment generally has a vacuum inhibitor and a flow stabilizer on the water storage tank for eliminating negative pressure. However, in order to prevent the water in the water storage tank from deteriorating, the water in the water storage tank is periodically emptied and then injected. However, due to different purification processes of tap water in different regions and possible differences in standard operation, the water quality in different regions is different. In some regions, the quality of tap water is poor. When the equipment is not running, impurities may deposit on the side wall of the water tank before the normal replacement time. In addition, the aging of some municipal water pipes may also carry impurities in the transported tap water, so that the tap water entering the water tank already contains some impurities. After a period of deposition in the water tank, impurities may adhere to the water tank, which is relatively inconvenient. In addition, when the air temperature is too high, when the water temperature rises to 30-40 degrees Celsius, microorganisms in the tap water are easy to produce some flocculation in the water. With the increase of water temperature, the flocculation will increase and adhere to the unscaling pipe wall to form biological sludge, which is also the reason why the water discharged from the tap water pipe is extremely turbid. This will further exacerbate the deterioration of water quality due to a period of deposition in the water tank, which is relatively inconvenient. SUMMARY

[0004] In order to overcome the above technical problems, the purpose of the present application is to provide a non-negative pressure water supply equipment and a water supply method, by starting the circulating mechanism, the circulating mechanism draws part of the water in the water tank at the bottom of the box into the water tank at the top of the box, so that the water flow is generated, and then the water flow enters the inside of the cleaning mechanism, and then the driving mechanism drives the cleaning mechanism to clean the water flow, and then the water flow is reflowed into the water tank at the bottom of the box, so that the water flow in the water tank is cleaned, the internal impurities are reduced, so that the water flow in the water tank is not easy to deteriorate, and the sediment is reduced.

[0005] The purpose of the present application can be realized by the following technical solutions:

[0006] A non-negative pressure water supply equipment, comprising a box, and the top surface of the box is connected with a water inlet pipe, one side of the box is communicated with a flow guide pipe, and the flow guide pipe is connected with a plurality of pressure increasing mechanisms, and a vacuum suppressor and a flow stabilizing compensator are arranged in the box, a circulating mechanism is arranged in the box, and a cleaning mechanism is arranged in the circulating mechanism, and a driving mechanism is arranged on one side of the cleaning mechanism.

[0007] The circulating mechanism comprises two water tanks, and the two water tanks are respectively fixedly connected to the top and bottom ends of the box, wherein the water tank at the bottom end of the box is communicated with the water inlet pipe and is connected with the vacuum suppressor and the flow stabilizing compensator, and the water tank at the bottom end of the box is communicated with the flow guide pipe and is connected with the plurality of pressure increasing mechanisms in a communicated manner through the flow guide pipe, the cleaning mechanism is located between the two water tanks, the bottom surface of the water tank at the top end is communicated with a water valve, and the water valve is connected with a hose, the top end of the hose is communicated with the cleaning mechanism, the bottom end of the water tank at the bottom end of the box is connected with a suction pump through a water pipe, and the outlet end of the suction pump is connected with a guide pipe, one end of the guide pipe is communicated with the water tank at the top end of the box, when the non-negative pressure water supply equipment is used for water supply, the cleaning mechanism, the circulating mechanism and the driving mechanism are all in a closed state, so that they do not easily affect the normal use of the flow stabilizing compensator and the vacuum suppressor on the water tank at the bottom end of the box, and do not easily affect the normal use of the water pressure boosting of the water tank through the flow guide pipe and the pressure increasing mechanism, after the water flow in the water tank at the bottom end of the box is stored for a certain period of time, the circulating mechanism is started, the suction pump first draws part of the water flow at the bottom end in the bottom water tank into the top water tank, then the water valve is started, the water flow automatically falls into the cleaning mechanism and is automatically closed, the water flow is sucked and disappears, and then the water flow above rushes in, so as to cause a certain stirring effect on the water flow on the bottom surface of the water tank at the bottom end of the box, so that the impurities that may be deposited in the water float and are sucked into the water tank at the top end of the box with the water flow, the water valve is in a normally closed state when there is no water in the top water tank, so as not to easily affect the normal use of the bottom water tank, then the water flow is cleaned by the cleaning mechanism and is reflowed into the bottom water tank, and then the suction pump sucks the water flow at the bottom of the bottom water tank again, so that most of the water flow in the water tank at the bottom end of the box can be cleaned by the cleaning mechanism to maintain the water quality and reduce the deterioration of the water quality.

[0008] Further in, the cleaning mechanism includes a meshing tooth cover, and the top surface of the meshing tooth cover is fixedly connected with an annular track, a support arm is arranged above the meshing tooth cover, one end of the support arm is slidably connected to the inside of the annular track, and the other end is rotatably connected with the driving mechanism, a filter screen is fixedly connected to the inner bottom surface of the meshing tooth cover, a bottom plate is fixedly connected to the bottom end of the filter screen, a rotating frame is rotatably sleeved to the bottom end of the meshing tooth cover, a closed ring is slidably sleeved to the outer side wall of the filter screen, a plurality of limiting grooves are formed in the inner side wall of the closed ring, a support rod is fixedly connected to the outer side wall of the filter screen at a position corresponding to each limiting groove, and the support rod is slidably connected to the inside of the adjacent limiting groove, a blowdown pipe is rotatably connected to the center of the bottom surface of the bottom plate, an electromagnetic valve is arranged in the blowdown pipe, one end of the blowdown pipe penetrates through the bottom surface of the rotating frame and is fixedly connected with the bottom surface of the rotating frame, a plurality of communication pipes are in communication with the inside of the water tank arranged at the bottom end of the box, and the water flow falls above the bottom plate after passing through the water valve and the hose and entering the cleaning mechanism, and is blocked by the closed ring falling on the bottom plate due to gravity, and then the water flow is shaken in a spiral vortex shape by the driving mechanism for filtering, and then the filtered water flow is lifted upward by the driving mechanism to make the water flow flow into the rotating frame through the filter screen and then reflow into the water tank at the bottom of the box through the rotating frame, so that the water flow is filtered, and thus the solid impurities are more easily shaken to the middle of the bottom plate for accumulation when the water flow is shaken in a lighter spiral vortex shape, facilitating the cleaning of the impurities.

[0009] Further in, a plurality of filter papers are fixedly connected to the top surface of the bottom plate, and the filter papers are arranged inside the filter screen, one end of each filter paper is fixedly connected with the inner side wall of the filter screen, and the other end of each filter paper is arranged at the center of the top surface of the bottom plate, so that the filter papers are arranged in a circumferential direction, and the impurities are more easily intercepted by the filter papers and adhered to the filter papers when the impurities move with the water flow in the moving direction of the water flow, facilitating the further concentration of the impurities and avoiding the floating movement of some lighter impurities with the water flow.

[0010] Further in, a heater is fixedly connected to the bottom surface of the rotating frame, when the temperature of the tap water is thirty to forty degrees Celsius, the microorganisms and other objects in the inside are easy to condense into flocculent substances and float on the water, the heater heats the water flow on the bottom plate, the flocculent substances are easy to be intercepted by the filter papers and adhered to the filter papers after appearing, and the distance between the bottom plate and the meshing tooth cover is small, so that the flow cross section of the water flow on the bottom plate is increased and the heating is more uniform, and the water flow is first slightly flowed in a spiral vortex shape under the driving of the driving mechanism, so that the water flow is more uniformly heated, and the heater can operate in an infrared heating mode.

[0011] Further in: the drive mechanism includes drive motor, and drive motor fixedly connected to the inner bottom surface of the box, the drive motor shaft fixedly connected with the rotating rod, and the rotating rod top fixedly connected with the card frame, the card frame top surface fixedly connected with the drive gear disc, and the card frame is located in the drive gear disc inner top surface center, the drive gear disc top surface is equipped with guide slot, and the guide slot inside is slidably connected with the sliding block, the sliding block top and the other end of the support arm rotatably connected, the sliding block outer wall rotatably connected with the connecting rod, and the connecting rod one end rotatably connected with the rotating ring, the rotating ring and the rotating rod outer wall slip sleeve, the box one side is fixedly connected with the electric push rod through the connecting frame, and the movable end of the electric push rod is fixedly connected with the sliding ring, the sliding ring and the rotating rod outer wall rotatably sleeve, and the sliding ring top surface and the rotating ring bottom surface rotatably connected, the support arm bottom surface is equipped with the sliding slot, and the sliding slot inside is slidably connected with two sliding plates, two the sliding plate one side is equipped with U-shaped groove, and the two U-shaped grooves are slidably connected with the U-shaped plate, the box relative both sides are equipped with sliding through hole, and the U-shaped plate is slidably embedded in the two sliding through hole inside, two The sliding plate one side is equipped with rectangular groove, and the both ends of the two rectangular grooves are rotatably connected with the rotating roller, two The sliding plate between is provided with the toothed belt, and the toothed belt is rotatably sleeved between the two rotating rollers, two The sliding plate bottom surface is fixedly connected with the U-shaped frame, and the two U-shaped frame inner bottom surface is rotatably connected with the rotating plate, and the two rotating plates adjacent one end is provided with the connecting plate, the connecting plate both ends are rotatably connected with the two rotating plates adjacent one end, The connecting plate top surface is rotatably connected with the telescopic rod, and the telescopic rod one end and the sliding ring top surface rotatably connected, the guide slot one end is located in the drive gear disc top surface center, the other end is located in the drive gear disc top surface outer ring edge, in the initial state, the sliding block and the other end of the support arm is located in the drive gear disc outer ring edge, namely the other end of the guide slot, while two sliding plates because of two rotating plates close to each other and in the similar state, the distance is small, and then drive motor starts to drive the rotating rod and the drive gear disc synchronous rotation, the drive gear disc pulls the sliding block to drive the other end of the support arm to move according to the sliding block annular moving track, while two sliding plates because of U-shaped groove clamping in U-shaped plate can only slide on it, and the sliding plate clamping in the sliding slot can only slide and cannot rotate, and the U-shaped plate can only slide between the two sliding through holes and cannot rotate, so that the sliding plate is limited by the U-shaped plate and the sliding plate and can only keep horizontal state to pull the synchronous movement of the meshing tooth cover, the meshing tooth cover and the sliding block moving track are the same, which is annular track, and the meshing tooth cover is not self-transmission at this time, the meshing tooth cover drives the bottom plate to move synchronously in annular, the water flow on the bottom plate moves to form vortex flow direction due to the annular moving track, and then the activated electric push rod pulls the sliding ring down, the sliding ring pulls the rotating ring and the telescopic rod to move synchronously, the rotating ring pulls the sliding block to slide into the card frame through the connecting rod, and the telescopic rod pulls the connecting plate to move down and extrude the two rotating plates away from each other, so that the two sliding plates are separated, and then the two sliding plates are separated to pull the toothed belt straight through the two rotating rollers,The tooth belt is engaged with the driving tooth disc and the meshing tooth cover, so that the driving tooth disc is driven to rotate, the tooth belt is driven to rotate, the meshing tooth cover is driven to rotate, the meshing tooth cover is self-transmitted, and then the closed ring is slid upward, so that the water flow on the bottom plate rotating synchronously with the meshing tooth cover enters the rotating frame through the filter screen due to centrifugal force.

[0012] Further, two C-shaped frames are arranged between the two sliding plates, and the two C-shaped frames are located at opposite sides of the tooth belt, two rotating shafts are rotatably connected between the two ends of the two C-shaped frames, the outer walls of the two rotating shafts are in contact with the inner walls of the tooth belt, elastic ropes are fixedly connected to one side of each of the two C-shaped frames, clamping blocks are fixedly connected to one end of each of the two elastic ropes, sliding clamping grooves are formed in opposite sides of the U-shaped plate, and the clamping blocks are slidably clamped in the sliding clamping grooves.

[0013] Further, a plurality of fixed rods are fixedly connected to the inner wall of the rotating frame, and a plurality of lifting rods are fixedly connected to the outer wall of the closed ring, the lifting rods are in movable contact with the adjacent fixed rods, when the meshing tooth cover drives the bottom plate and the filter screen to rotate, and the closed ring is driven to rotate by the supporting rods on the filter screen, the rotating frame is pulled by the plurality of communication pipes, the communication pipes are soft pipes, and a certain length is reserved, so that the meshing tooth cover does not be limited by the communication pipes when it rotates in a ring shape with the sliding block located at the outer ring edge of the driving tooth disc, the position of the rotating frame is not easy to change, so that the plurality of lifting rods on the closed ring drive the closed ring to move upward by contacting the adjacent fixed rods, and the closed ring maintains the state after moving upward due to the high rotating speed of the meshing tooth cover, so that the water flow can fall from the gap between the closed ring and the bottom plate to the rotating frame.

[0014] Further, the bottom surface of the lifting rod is an arc surface, and the top surface of the fixed rod is an arc surface, so as to facilitate the sliding of the lifting rod on the fixed rod.

[0015] Further in: the side of the box is provided with air pump, and the air pump outlet is communicated with the air pipe, one end of the air pipe penetrates the side wall of the box and is fixedly connected with the side wall of the box, and one end of the air pipe penetrates the outer side wall of the rotating frame and is located in the rotating frame, the outer side wall of the air pipe is fixedly connected with the outer side wall of the rotating frame, and the part of the air pipe between the rotating frame and the box is reserved a certain length, which will not affect the movement of the meshing tooth cover, and the pipe head of the air pipe is inclined and arranged towards the center of the bottom plate bottom surface, after the water flow flows into the rotating frame, the air pump is started to blow the filter paper arranged in the circle, the impurities and flocculation on the filter paper are blown to the center of the bottom plate by blowing, and then the electromagnetic valve in the sewage pipe is opened, the impurities and flocculation are blown out of the sewage pipe by the blowing of the air pump.

[0016] A water supply method of a non-negative pressure water supply device, specifically comprising the following steps:

[0017] Step one: first install the vacuum suppressor and the flow stabilizer on the water tank at the bottom end of the box, then connect the water inlet pipe and the flow guide pipe with the water tank, and then set a plurality of controllers on the box to control the opening and closing of the water valve, the suction pump, the driving motor, the electric push rod, the electromagnetic valve, the water pump and the heater respectively;

[0018] Step two: when the water supply is carried out, the water pressure is appropriately boosted by the pressure boosting mechanism, the cleaning mechanism, the circulating mechanism and the driving mechanism are not started, and the water valve is in the closed state, and the water tank at the bottom end of the box eliminates negative pressure through the flow stabilizer and the vacuum suppressor;

[0019] Step three: then after the water flow in the water tank is stored for a certain period of time, the suction pump is started to suck part of the water flow at the bottom of the water tank at the bottom end of the box into the water tank at the top of the box, and then the water valve is started to make the part of the water flow flow into the above of the bottom plate through the hose and be blocked by the closed ring, and then the heater is started to heat the water flow on the bottom plate to make the water on the bottom plate heat and precipitate flocculation;

[0020] Step four: at the same time, the driving motor is started to drive the rotating rod to rotate slowly, the rotating rod drives the driving gear plate to rotate, and the driving gear plate drives the sliding block at the outer ring edge to drive the support arm to move the meshing tooth cover when rotating, because the support arm is limited by the sliding plate and the U-shaped plate and cannot rotate, the meshing tooth cover is kept in the horizontal state and is pulled to move along the circular track of the sliding block on the driving gear plate, so that the water flow on the bottom plate moves in a spiral shape along the movement of the meshing tooth cover, and the flocculation in the water is filtered by the circularly arranged filter paper and adheres to the filter paper along the spiral flow direction of the water flow;

[0021] Step five: then the electric push rod starts to pull down, the sliding ring drives the rotating ring to pull the connecting rod to move, the connecting rod pulls the slider to move to be clamped into the card frame, and the sliding ring will drive the telescopic rod to move down synchronously, the telescopic rod drives the connecting plate to move down, the connecting plate presses down one end of the two rotating plates, the two rotating plates rotate towards each other to open, so that the two sliding plates move away from each other, and the rotating rollers on the two sliding plates pull the toothed belt to be taut;

[0022] Step six: then the driving motor is started again to drive the rotating rod to rotate rapidly, the rotating rod drives the driving gear through the meshing toothed belt to rotate, the toothed belt rotates between the two rotating rollers, and the meshing tooth cover rotates, the rotating frame does not rotate because it is pulled by the air pipe and the communication pipe, the meshing tooth cover drives the closed ring to rotate synchronously through the support rod on the filter screen, and the multiple lifting rods on the closed ring continuously and rapidly touch the adjacent fixed rods to drive the closed ring to keep moving up, and the centrifugal force of the water flow on the bottom plate makes the water flow fall into the rotating frame through the filter screen, then the air pump is started, the air pipe blows the flocculent material on the filter paper and other impurities in the water to the center of the bottom plate, the electromagnetic valve is started, and the sewage pipe discharges the flocculent material and impurities;

[0023] Step seven: the water flow falling into the rotating frame flows back into the water tank at the bottom end of the box through the communication pipe, then the electric push rod moves up to reset, the slider is reset by the rotating ring touching the connecting rod, the other end of the supporting arm moves to the outer ring edge of the driving gear, then the suction pump sucks part of the water flow into the water tank at the top of the box and repeats the cycle of filtering through the cleaning mechanism.

[0024] The beneficial effects of the present application are:

[0025] 1. By starting the circulating mechanism, the circulating mechanism sucks part of the water flow in the water tank at the bottom of the box into the water tank at the top of the box, so that the water flow flows, the water flow after being sucked flows into the water tank at the bottom of the box, the impurities deposited on the bottom surface of the water tank are stirred, the water flow and impurities enter the water tank above the box, then enter the cleaning mechanism, and then the driving mechanism drives the cleaning mechanism to clean and filter the water flow, so that the water flow in the water tank is cleaned, the internal impurities are reduced, so that the water flow in the water tank is not easy to deteriorate, and the sediment is reduced.

[0026] 2, by starting the drive motor, the drive gear plate rotating, the drive gear plate driving cleaning mechanism as a whole along the circular track, the water flow inside the cleaning mechanism to move in a vortex, easy to collect the impurities in the water flow, and then start the electric push rod driving the rotating ring to pull the connecting rod down, the sliding block is inserted into the card frame, and the sliding ring pulls the connecting block down through the extension rod, the two rotating plates rotate towards each other, the two sliding plates are unfolded, the belt is pulled straight, and then the drive gear plate drives the meshing tooth cover to rotate through the belt, the meshing tooth cover drives the bottom plate to rotate, the multiple lifting rods on the cleaning mechanism contact the adjacent fixed rods and move up, and the closed ring is lifted, so that the water flow flows into the water tank inside the box body;

[0027] 3, by driving mechanism first drive meshing tooth cover and bottom plate along the circular track, the water flow on the bottom plate moves in a vortex, and the heater is started, the water flow on the bottom plate is heated, because the distance between the bottom plate and the meshing tooth cover is small, the water flow cross section increases, and the water flow moves in a vortex, improves the water flow heating effect, and the water flow may be condensed into flocculation, and then through the vortex moving water flow, the impurities and flocculation are attached to the filter paper, and then when the meshing tooth cover drives the bottom plate to rotate, the lifting rods on the closed ring are in contact with the fixed rods to lift the closed ring, and the water flow is separated from the bottom plate due to the centrifugal force of the rotating bottom plate and falls into the water tank below;

[0028] 4, by starting the air pump, the inclined air pipe sprays air flow, after the water flow enters the rotating frame due to the centrifugal force, the electromagnetic valve is started to open the sewage pipe, and the air flow from the air pipe blows the impurities and flocculation on the filter paper, and the flocculation and impurities are discharged through the sewage pipe. BRIEF DESCRIPTION OF DRAWINGS

[0029] The application will be further described below in combination with the drawings.

[0030] Figure 1 is a schematic diagram of the installation position plane of the application;

[0031] Figure 2 is a schematic diagram of the overall structure of the application;

[0032] Figure 3 is a schematic diagram of the internal structure of the box body in the application;

[0033] Figure 4 is a schematic diagram of the position relationship between the circulating mechanism and the cleaning mechanism in the application;

[0034] Figure 5 is an exploded view of the cleaning mechanism structure in the application;

[0035] Figure 6 is a schematic diagram of the rotating frame, closed ring and filter screen structure in the application;

[0036] Figure 7 is a schematic diagram of the driving mechanism structure in the application;

[0037] Figure 8 is an exploded view of the driving mechanism structure in the application;

[0038] Figure 9 is a plan view of the driving mechanism in use in the application.

[0039] In the figure: 100, box body; 101, sliding through hole; 200, circulating mechanism; 210, water tank; 220, water valve; 230, hose; 240, suction pump; 241, conduit; 300, cleaning mechanism; 310, meshed tooth cover; 320, annular track; 330, support arm; 331, sliding chute; 340, filter screen; 341, support rod; 350, bottom plate; 351, filter paper; 360, closed ring; 361, lifting rod; 362, limiting groove; 370, rotating frame; 371, fixed rod; 372, communication pipe; 373, sewage pipe; 374, heater; 380, air pipe; 400, driving mechanism; 410, driving motor; 420, rotating rod; 421, clamping frame; 430, driving toothed disc; 431, guide groove; 440, sliding block; 441, connecting rod; 442, rotating ring; 450, electric push rod; 451, sliding ring; 460, U-shaped plate; 461, sliding clamping groove; 470, sliding plate; 471, rotating roller; 472, U-shaped groove; 480, toothed belt; 481, C-shaped frame; 482, rotating shaft; 483, elastic rope; 484, clamping block; 490, U-shaped frame; 491, rotating plate; 492, connecting plate; 493, telescopic rod; 500, water inlet pipe; 600, pressure boosting mechanism; 700, flow guide pipe. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0041] Please refer to Figures 1-9 As shown in the figure, a non-negative pressure water supply device includes a box body 100, the top surface of the box body 100 is connected with a water inlet pipe 500, one side of the box body 100 is communicated with a flow guide pipe 700, the flow guide pipe 700 is connected with a plurality of pressure boosting mechanisms 600, a vacuum suppressor and a flow stabilizing compensator are arranged inside the box body 100, a circulating mechanism 200 is arranged inside the box body 100, a cleaning mechanism 300 is arranged on one side of the circulating mechanism 300, and a driving mechanism 400 is arranged on one side of the cleaning mechanism 300;

[0042] The circulating mechanism 200 comprises two water tanks 210, and the two water tanks 210 are fixedly connected to the top and bottom of the tank body 100 respectively. The water tank 210 located at the bottom of the tank body 100 is communicated with the water inlet pipe 500 and is connected with the vacuum inhibitor and the steady flow compensator. The water tank 210 located at the bottom of the tank body 100 is communicated with the flow guide pipe 700 and is connected with the plurality of pressure increasing mechanisms 600 through the flow guide pipe 700. The cleaning mechanism 300 is located between the two water tanks 210. The bottom surface of the water tank 210 located at the top is communicated with the water valve 220, and the water valve 220 is connected with the hose 230. The top end of the hose 230 is communicated with the cleaning mechanism 300. The bottom end of the water tank 210 located at the bottom of the tank body 100 is connected with the suction pump 240 through the water pipe. The outlet end of the suction pump 240 is connected with the conduit 241. One end of the conduit 241 is communicated with the water tank 210 located at the top of the tank body 100. When the non-negative pressure water supply equipment is used for water supply, the cleaning mechanism 300, the circulating mechanism 200 and the driving mechanism 400 are all in the closed state, so that they are not easy to affect the normal use of the steady flow compensator and the vacuum inhibitor on the water tank 210 located at the bottom of the tank body 100, and are not easy to affect the normal use of the water pressure increasing of the water tank 210 through the flow guide pipe 700 and the pressure increasing mechanism 600. After the water flow in the water tank 210 at the bottom of the tank body 100 is stored for a certain period of time, the circulating mechanism 200 is started. The suction pump 240 first sucks the water flow at the bottom end in the bottom water tank 210 into the top water tank 210. Then, the water valve 220 is started. The water flow is automatically dropped into the cleaning mechanism 300 and is automatically closed. The water flow is sucked and disappears. Then, the upper water flow rushes in to cause a certain stirring effect on the water flow on the bottom surface of the water tank 210 located at the bottom of the tank body 100, so that the impurities possibly deposited in the water flow float and are sucked into the water tank 210 located at the top of the tank body 100 with the water flow. When there is no water in the top water tank 210, the water valve 220 is in the normally closed state, so as not to affect the normal use of the bottom water tank 210. Then, the water flow is cleaned after passing through the cleaning mechanism 300 and is reflowed into the bottom water tank 210. Then, the suction pump 240 sucks the water flow at the bottom of the bottom water tank 210 again, so that most of the water flow in the water tank 210 located at the bottom of the tank body 100 can be cleaned by the cleaning mechanism 300 to keep the water quality and reduce the deterioration of the water quality.

[0043] The cleaning mechanism 300 comprises an engagement tooth cover 310, and the top surface of the engagement tooth cover 310 is fixedly connected with an annular track 320. An arm 330 is arranged above the engagement tooth cover 310, and one end of the arm 330 is slidably connected to the inside of the annular track 320, and the other end is rotatably connected with a driving mechanism 400. A filter screen 340 is fixedly connected to the inner bottom surface of the engagement tooth cover 310. A bottom plate 350 is fixedly connected to the bottom end of the filter screen 340. A rotating frame 370 is rotatably sleeved to the bottom end of the engagement tooth cover 310. A closed ring 360 is slidably sleeved to the outer side wall of the filter screen 340. A plurality of limiting grooves 362 are arranged on the inner side wall of the closed ring 360. A plurality of supporting rods 341 are fixedly connected to the outer side wall of the filter screen 340 at positions corresponding to the plurality of limiting grooves 362. The plurality of supporting rods 341 are slidably connected to the inside of the adjacent limiting grooves 362. A blowdown pipe 373 is rotatably connected to the center of the bottom surface of the bottom plate 350. An electromagnetic valve is arranged in the blowdown pipe 373. One end of the blowdown pipe 373 penetrates through the bottom surface of the rotating frame 370 and is fixedly connected with the bottom surface of the rotating frame 370. A plurality of communication pipes 372 are in communication with the inside of the water tank 210 arranged at the bottom end of the box body 100. After the water flow passes through the water valve 220 and the hose 230 and enters the cleaning mechanism 300, it falls above the bottom plate 350 and is blocked by the closed ring 360 falling on the bottom plate 350 due to gravity. Then the water flow is shaken in a spiral vortex shape by the driving mechanism 400 for filtration. Then the filtered water flow is lifted by the driving mechanism 400 to move the closed ring 360 upwards, so that the water flow flows into the rotating frame 370 through the filter screen 340 and then reflows into the inside of the water tank 210 at the bottom of the box body 100. The water flow is filtered, so that the solid impurities are more easily shaken to the middle of the bottom plate 350 for accumulation when the water flow is shaken in a lighter spiral vortex shape during filtration, facilitating the cleaning of the impurities.

[0044] A plurality of filter papers 351 are fixedly connected to the top surface of the bottom plate 350, and the plurality of filter papers 351 are arranged inside the filter screen 340. One end of the plurality of filter papers 351 is fixedly connected with the inner side wall of the filter screen 340, and the other end of the plurality of filter papers 351 is arranged at the center of the top surface of the bottom plate 350. The plurality of filter papers 351 are arranged in a circumferential direction, so that the impurities are more easily intercepted by the filter papers 351 and adhered to the filter papers 351 when the impurities move with the water flow in the moving direction of the water flow, facilitating the further concentration of the impurities and avoiding the floating movement of part of the lighter impurities with the water flow.

[0045] The bottom surface of the rotating frame 370 is fixedly connected with a heater 374. When the temperature of tap water is 30-40 degrees Celsius, microorganisms and other objects in the water are prone to flocculate and float on the water. The heater 374 heats the water flow on the bottom plate 350, so that the flocculation is easily intercepted by the filter paper 351 and adheres to the filter paper 351. At the same time, due to the small distance between the bottom plate 350 and the meshing tooth cover 310, the water flow cross section on the bottom plate 350 is increased, and the heating is more uniform. At the same time, the water flow is first slightly vortexed under the driving of the driving mechanism 400, so that the water flow is heated more uniformly. The heater 374 can operate in an infrared heating mode.

[0046] The driving mechanism 400 comprises a driving motor 410 fixedly connected to the inner bottom surface of the box body 100, a rotating rod 420 fixedly connected to the motor shaft of the driving motor 410, a clamping frame 421 fixedly connected to the top end of the rotating rod 420, a driving gear disc 430 fixedly connected to the top surface of the clamping frame 421 and located at the inner top center of the driving gear disc 430, a guide groove 431 formed in the top surface of the driving gear disc 430, a sliding block 440 slidably connected inside the guide groove 431, the other end of the sliding block 440 rotatably connected to the other end of the supporting arm 330, a connecting rod 441 rotatably connected to the outer lateral wall of the sliding block 440, a rotating ring 442 rotatably connected to one end of the connecting rod 441 and slidably sleeved with the outer lateral wall of the rotating rod 420, an electric push rod 450 fixedly connected to one side of the box body 100 through a connecting frame, a sliding ring 451 fixedly connected to the movable end of the electric push rod 450 and rotatably sleeved with the outer lateral wall of the rotating rod 420, the top surface of the sliding ring 451 rotatably connected to the bottom surface of the rotating ring 442, a sliding groove 331 formed in the bottom surface of the supporting arm 330, two sliding plates 470 slidably connected inside the sliding groove 331, a U-shaped slot 472 formed in one side of each of the two sliding plates 470, a U-shaped plate 460 slidably connected between the two U-shaped slots 472, a sliding through hole 101 formed in each of the opposite sides of the box body 100 and into which the U-shaped plate 460 is slidably embedded, a rectangular slot formed in one side of each of the two sliding plates 470, a rotating roller 471 rotatably connected between the two ends of each of the two rectangular slots, a toothed belt 480 arranged between the two sliding plates 470 and rotatably sleeved between the two rotating rollers 471, a U-shaped frame 490 fixedly connected to the bottom surface of each of the two sliding plates 470, a rotating plate 491 rotatably connected to the inner bottom surface of each of the two U-shaped frames 490, a connecting plate 492 arranged between the adjacent one end of each of the two rotating plates 491 and rotatably connected to the adjacent one end of each of the two rotating plates 491, a telescopic rod 493 rotatably connected to the top surface of the sliding ring 451 and to the top surface of the connecting plate 492, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493 rotatably connected to the top surface of the sliding ring 451, one end of the telescopic rod 493The moving track of the meshing tooth cover 310 is the same as that of the sliding block 440, which is annular, and the meshing tooth cover 310 is not self-transmitted at this time. The meshing tooth cover 310 drives the bottom plate 350 to move synchronously in a ring shape, so that the water flow on the bottom plate 350 moves to form a vortex flow direction due to the annular moving track. After the flocculation and impurities in the water adhere to the filter paper 351, the electric push rod 450 is started to pull down the sliding ring 451, so that the sliding ring 451 pulls down the rotating ring 442 and the telescopic rod 493 synchronously, the rotating ring 442 pulls the sliding block 440 to slide into the clamping frame 421 through the connecting rod 441, and the telescopic rod 493 pulls the connecting plate 492 to move downward to press the two rotating plates 491 away from each other, so that the two sliding plates 470 are separated, and the two rotating rollers 471 are used to pull the tooth belt 480 straight, so that the gear teeth on the tooth belt 480 located on the two rotating rollers 471 are engaged with the driving tooth disc 430 and the meshing tooth cover 310. When the rotating rod 420 rotates, the driving tooth disc 430 rotates, the gear teeth on the driving tooth disc 430 rotate through the tooth belt 480 engaged therewith, the tooth belt 480 drives the meshing tooth cover 310 to rotate, so that the meshing tooth cover 310 performs self-transmission, and then the closed ring 360 is moved upward, so that the water flow on the bottom plate 350 rotating synchronously with the meshing tooth cover 310 enters the rotating frame 370 through the filter screen 340 due to the centrifugal force.

[0047] Two C-shaped frames 481 are arranged between the two sliding plates 470, and the two C-shaped frames 481 are located at opposite sides of the tooth belt 480. Rotating shafts 482 are rotatably connected between the two ends of the two C-shaped frames 481, and the outer side walls of the two rotating shafts 482 are in contact with the inner side walls of the tooth belt 480. Elastic ropes 483 are fixedly connected to one side of each of the two C-shaped frames 481, and clamping blocks 484 are fixedly connected to one end of each of the two elastic ropes 483. Sliding clamping grooves 461 are formed in the opposite sides of the U-shaped plate 460, and the two clamping blocks 484 are slidingly clamped in the sliding clamping grooves 461. When the two sliding plates 470 are close to each other, the tooth belt 480 located at the opposite sides between the two sliding plates 470 is pulled by the two elastic ropes 483 through the C-shaped frames 481 and the rotating shafts 482, so that most of the tooth belt 480 is located between the two sliding plates 470 and is not easy to move to the outside of the two sliding plates 470.

[0048] The plurality of fixed rods 371 are fixedly connected to the inner side wall of the rotating frame 370, and the plurality of lifting rods 361 are fixedly connected to the outer side wall of the closing ring 360, and the plurality of lifting rods 361 are in movable abutment with the adjacent fixed rods 371. When the meshing tooth cover 310 drives the bottom plate 350 and the filter screen 340 to rotate, and the closing ring 360 is driven to rotate through the support rod 341 on the filter screen 340, the rotating frame 370 is pulled by the plurality of communication pipes 372, the communication pipes 372 are soft pipes, and a certain length is reserved, so that the meshing tooth cover 310 is not limited by the communication pipes 372 when the meshing tooth cover 310 is circularly driven along with the sliding block 440 located at the outer ring edge of the driving tooth disc 430, and the position of the rotating frame 370 is not easily changed, so that the plurality of lifting rods 361 on the closing ring 360 drive the closing ring 360 to move up by abutting the adjacent fixed rods 371, and the closing ring 360 remains in the state after moving up due to the high rotating speed of the meshing tooth cover 310, so that the water flow can fall from the gap between the closing ring 360 and the bottom plate 350 to the rotating frame 370.

[0049] The bottom surface of the lifting rod 361 is an arc surface, and the top surface of the fixed rod 371 is an arc surface, so as to facilitate the sliding of the lifting rod 361 on the fixed rod 371.

[0050] A gas pump is arranged on one side of the box body 100, and a gas pipe 380 is communicated with the gas outlet end of the gas pump. One end of the gas pipe 380 penetrates through the side wall of the box body 100 and is fixedly connected with the side wall of the box body 100. One end of the gas pipe 380 penetrates through the outer side wall of the rotating frame 370 and is located inside the rotating frame 370. The outer side wall of the gas pipe 380 is fixedly connected with the outer side wall of the rotating frame 370. The part of the gas pipe 380 between the rotating frame 370 and the box body 100 is reserved with a certain length, which does not affect the movement of the meshing tooth cover 310. The pipe head of the gas pipe 380 is inclinedly arranged and faces the center of the bottom surface of the bottom plate 350. After the water flow flows into the rotating frame 370, the gas pump is started to blow the circumferentially arranged filter paper 351, so as to blow the impurities and flocculation on the filter paper 351 to the center of the bottom plate 350 by blowing. Then, the electromagnetic valve inside the blow-off pipe 373 is opened, and the impurities and flocculation are blown out of the blow-off pipe 373 by the blowing of the gas pump.

[0051] A water supply method of a non-negative pressure water supply device, specifically comprising the following steps:

[0052] Step one: first install the vacuum suppressor and the steady flow compensator on the water tank 210 located at the bottom end of the box body 100, then connect the water inlet pipe 500 and the flow guide pipe 700 with the water tank 210, and then set a plurality of controllers on the box body 100 to control the opening and closing of the water valve 220, the suction pump 240, the driving motor 410, the electric push rod 450, the electromagnetic valve, the water pump and the heater 374 respectively;

[0053] Step two: when the water supply, through the booster mechanism 600 on the water pressure is appropriate to boost, while cleaning mechanism 300, circulation mechanism 200 and drive mechanism 400 are not started, and the water valve 220 is in the closed state, while the water tank 210 at the bottom of the box 100 through the steady flow compensator and vacuum inhibitor to eliminate negative pressure;

[0054] Step three: then the water tank 210 inside the water storage for a certain period of time, the suction pump 240 start, the water tank 210 at the bottom of the box 100 bottom of the part of the water through the conduit 241 to the water tank 210 at the top of the box 100, and then the water valve 220 start, make the part of the water through the hose 230 into the floor 350 above, and be blocked by the closed ring 360, and then the heater 374 start to the floor 350 on the water heating, heating the water on the floor 350 to precipitate flocculation;

[0055] Step four: at the same time, start the drive motor 410 drive rotating rod 420 slow rotation, rotating rod 420 drive gear 430 rotation, drive gear 430 rotation through the sliding block 440 at its outer ring edge drive arm 330 pull the engagement tooth cover 310 movement, because the arm 330 by the sliding plate 470 and U-shaped plate 460 limit will not rotate to keep the horizontal state pull the engagement tooth cover 310 with the sliding block 440 on the drive gear 430 circular motion track synchronous ring track translation, the water on the floor 350 by the movement of the engagement tooth cover 310 on the floor 350 in the vortex flow, and make the water in the flocculation with the vortex flow direction of water flow circularly arranged filter paper 351 filtration and make the flocculation close to the filter paper 351;

[0056] Step five: then the electric push rod 450 start to pull down, make the sliding ring 451 drive rotating ring 442 pull the connecting rod 441 movement, make the connecting rod 441 pull the sliding block 440 movement make it card into the card frame 421 inside, and, sliding ring 451 will synchronous drive telescopic rod 493 down, make the telescopic rod 493 drive connecting plate 492 down, make the connecting plate 492 will two rotating plate 491 one end down, make two rotating plate 491 opposite rotation prop open, so that the two sliding plate 470 away from each other, make the two sliding plate 470 on the rotating roller 471 will pull the belt 480 straight;

[0057] Step six: then drive motor 410 again start belt driven rod 420 rotating quickly, make the rod 420 drive drive gear 430 through the meshing of the toothed belt 480, make the toothed belt 480 rotate between two rollers 471, and make the meshing tooth cover 310 rotate, while the rotating frame 370 is not rotating because of the air pipe 380 and the communication pipe 372, make the meshing tooth cover 310 through the filter screen 340 on the support rod 341 drive the closed ring 360 synchronous rotation, and make the multiple lifting rods 361 on the closed ring 360 keep the state of moving up by continuously touching the adjacent fixed rod 371, while the bottom plate 350 rotates to make the water flow on it produce centrifugal force through the filter screen 340 into the rotating frame 370, then start the air pump, make the air pipe 380 blow the flocculation on the filter paper 351 and other impurities in the water to the center of the bottom plate 350, start the electromagnetic valve, make the sewage pipe 373 discharge the flocculation and impurities;

[0058] Step seven: then the water flow in the rotating frame 370 flows back into the water tank 210 inside the box 100 through the communication pipe 372, then the electric push rod 450 moves up to reset through the rotating ring 442 touching the connecting rod 441 to drive the slider 440 to reset, make the other end of the support arm 330 move to the outer ring edge of the drive gear 430, then the suction pump 240 sucks part of the water flow into the water tank 210 inside the box 100 again through the cleaning mechanism 300 to repeat the cycle of filtration.

[0059] In the description of the present specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0060] The above is only an example and description of the present application, and those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as it does not deviate from the invention or exceed the scope defined by the present claims, which shall belong to the protection scope of the present application.

Claims

1. A negative pressure-free water supply device, comprising a housing (100), wherein a water inlet pipe (500) is connected to the top surface of the housing (100), a flow guide pipe (700) is connected to one side of the housing (100), and a plurality of pressurizing mechanisms (600) are connected to the flow guide pipe (700), and a vacuum suppressor and a flow stabilizing compensator are provided inside the housing (100), characterized in that, The box (100) is internally provided with a circulating mechanism (200), and the circulating mechanism (200) is internally provided with a cleaning mechanism (300), and the cleaning mechanism (300) is provided with a driving mechanism (400) on one side; The circulating mechanism (200) comprises two water tanks (210), and the two water tanks (210) are fixedly connected to the top and bottom ends of the box (100), wherein the water tank (210) located at the bottom end of the box (100) is communicated with the water inlet pipe (500) and is connected with a vacuum inhibitor and a steady flow compensator, and the water tank (210) located at the bottom end of the box (100) is communicated with the flow guide pipe (700) and is connected with a plurality of booster mechanisms (600) through the flow guide pipe (700), the cleaning mechanism (300) is located between the two water tanks (210), the bottom surface of the water tank (210) located at the top end is communicated with a water valve (220), and the water valve (220) is connected with a hose (230), the top end of the hose (230) is communicated with the cleaning mechanism (300), and the water tank (210) located at the bottom end of the box (100) is connected with a suction pump (240) through a water pipe at the bottom end, and the outlet end of the suction pump (240) is connected with a conduit (241), and one end of the conduit (241) is communicated with the water tank (210) located at the top end of the box (100); The cleaning mechanism (300) comprises a meshing tooth cover (310), and the top surface of the meshing tooth cover (310) is fixedly connected with an annular track (320); a supporting arm (330) is arranged above the meshing tooth cover (310), one end of the supporting arm (330) is slidably connected to the inside of the annular track (320), and the other end is rotatably connected with the driving mechanism (400); a filter screen (340) is fixedly connected to the inner bottom surface of the meshing tooth cover (310); the bottom end of the filter screen (340) is fixedly connected with a bottom plate (350); a rotating frame (370) is rotatably sleeved with the meshing tooth cover (310) at the bottom end; a closed ring (360) is slidably sleeved with the outer side wall of the filter screen (340), a plurality of limiting grooves (362) are formed in the inner side wall of the closed ring (360), a supporting rod (341) is fixedly connected to the outer side wall of the filter screen (340) at a position corresponding to each limiting groove (362), and the supporting rod (341) is slidably connected to the inside of the adjacent limiting groove (362); a blowdown pipe (373) is rotatably connected to the center of the bottom surface of the bottom plate (350), an electromagnetic valve is arranged in the blowdown pipe (373), one end of the blowdown pipe (373) penetrates through the bottom surface of the rotating frame (370) and is fixedly connected with the bottom surface of the rotating frame (370), a plurality of communication pipes (372) are communicated with the inside of the water tank (210) located at the bottom end of the box (100), and the plurality of communication pipes (372) are communicated with the inside of the water tank (210) located at the bottom end of the box (100). The bottom plate (350) top surface is fixedly connected with a plurality of filter paper (351), and the plurality of filter paper (351) is located inside the filter screen (340), and the plurality of filter paper (351) is fixedly connected with the inner wall of the filter screen (340) at one end, and the other end of the plurality of filter paper (351) is located at the center of the top surface of the bottom plate (350); The inner wall of the rotating frame (370) is fixedly connected with a plurality of fixed rods (371), and the outer wall of the closed ring (360) is fixedly connected with a plurality of lifting rods (361), and the plurality of lifting rods (361) are movably in contact with the adjacent fixed rods (371); The bottom surface of the lifting rod (361) is an arc surface, and the top surface of the fixed rod (371) is an arc surface; The box (100) is provided with a gas pump on one side, and the gas pump is communicated with a gas pipe (380), one end of the gas pipe (380) penetrates the side wall of the box (100) and is fixedly connected with the side wall of the box (100), and one end of the gas pipe (380) penetrates the outer side wall of the rotating frame (370) and is located inside the rotating frame (370), and the outer side wall of the gas pipe (380) is fixedly connected with the outer side wall of the rotating frame (370); The driving mechanism (400) can drive the meshing tooth cover (310) to move in a circular track, so that the water flow on the bottom plate (350) is affected by the movement of the meshing tooth cover (310) and flows in a vortex shape on the bottom plate (350); The driving mechanism (400) can drive the meshing tooth cover (310) to rotate, so that the plurality of lifting rods (361) on the closed ring (360) continuously and quickly contact the adjacent fixed rods (371) to drive the closed ring (360) to keep moving upward, and the centrifugal force of the water flow on the bottom plate (350) is generated by the rotation of the bottom plate (350) and falls into the rotating frame (370) through the filter screen (340).

2. The non-negative pressure water supply device according to claim 1, characterized in that, The bottom surface of the rotating frame (370) is fixedly connected with a heater (374).

3. The non-negative pressure water supply device according to claim 2, characterized in that, The driving mechanism (400) includes a driving motor (410), and the driving motor (410) is fixedly connected to the inner bottom surface of the box (100), the motor shaft of the driving motor (410) is fixedly connected with a rotating rod (420), and the top end of the rotating rod (420) is fixedly connected with a clamping frame (421); the top surface of the clamping frame (421) is fixedly connected with a driving gear disc (430), and the clamping frame (421) is located at the inner top surface center of the driving gear disc (430); the top surface of the driving gear disc (430) is provided with a guide groove (431), and the guide groove (431) is slidably connected with a sliding block (440); the top end of the sliding block (440) is rotatably connected with the other end of the supporting arm (330); the outer side wall of the sliding block (440) is rotatably connected with a connecting rod (441), and one end of the connecting rod (441) is rotatably connected with a rotating ring (442); the rotating ring (442) is slidably sleeved with the outer side wall of the rotating rod (420); one side of the box (100) is fixedly connected with an electric push rod (450) through a connecting frame, and the movable end of the electric push rod (450) is fixedly connected with a sliding ring (451); the sliding ring (451) is rotatably sleeved with the outer side wall of the rotating rod (420), and the top surface of the sliding ring (451) is rotatably connected with the bottom surface of the rotating ring (442); the bottom surface of the supporting arm (330) is provided with a sliding groove (331), and the sliding groove (331) is slidably connected with two sliding plates (470); the two sliding plates (470) are both provided with a U-shaped groove (472) on one side, and a U-shaped plate (460) is slidably connected between the two U-shaped grooves (472); the opposite sides of the box (100) are both provided with a sliding through hole (101), and the U-shaped plate (460) is slidably embedded in the inner part of the two sliding through holes (101); the two sliding plates (470) are both provided with a rectangular groove on one side, and a rotating roller (471) is rotatably connected between the two ends of the two rectangular grooves; a toothed belt (480) is arranged between the two sliding plates (470), and the toothed belt (480) is rotatably sleeved between the two rotating rollers (471); the bottom surfaces of the two sliding plates (470) are both fixedly connected with a U-shaped frame (490), and the inner bottom surfaces of the two U-shaped frames (490) are both rotatably connected with a rotating plate (491); a connecting plate (492) is arranged between the adjacent ends of the two rotating plates (491); the connecting plate (492) is rotatably connected with the adjacent ends of the two rotating plates (491); the top surface of the connecting plate (492) is rotatably connected with an extension rod (493), and one end of the extension rod (493) is rotatably connected with the top surface of the sliding ring (451).

4. The non-negative pressure water supply device according to claim 3, characterized in that, Two C-shaped frames (481) are arranged between the two sliding plates (470) and are located at opposite sides of the toothed belt (480), rotating shafts (482) are rotatably connected between the two ends of the two C-shaped frames (481), the outer side walls of the two rotating shafts (482) are in contact with the inner side walls of the toothed belt (480), elastic ropes (483) are fixedly connected to one side of the two C-shaped frames (481), clamping blocks (484) are fixedly connected to one end of the two elastic ropes (483), and sliding clamping grooves (461) are formed in the opposite sides of the U-shaped plate (460) and the two clamping blocks (484) are slidably clamped in the sliding clamping grooves (461).

5. The water supply method of the non-negative pressure water supply apparatus according to claim 4, characterized in that, Specifically, the following steps are included: Step one: first, install the vacuum suppressor and the steady flow compensator on the water tank (210) at the bottom end of the box body (100), then connect the water inlet pipe (500) and the flow guide pipe (700) to the water tank (210), and then set a plurality of controllers on the box body (100) to control the opening and closing of the water valve (220), the suction pump (240), the driving motor (410), the electric push rod (450), the electromagnetic valve, the water pump and the heater (374); Step two: when the water supply is in progress, the water pressure is appropriately boosted by the pressure boosting mechanism (600), the cleaning mechanism (300), the circulating mechanism (200) and the driving mechanism (400) are not started, and the water valve (220) is in a closed state, and the water tank (210) at the bottom end of the box body (100) eliminates negative pressure through the steady flow compensator and the vacuum suppressor; Step three: then, after the water flow in the water tank (210) is stored for a certain period of time, the suction pump (240) starts to draw part of the water flow at the bottom of the water tank (210) at the bottom end of the box body (100) to the water tank (210) at the top of the box body (100) through the conduit (241), and then the water valve (220) is automatically started to make the part of the water flow flow into the soft tube (230) above the bottom plate (350) and be blocked by the closed ring (360), and then the heater (374) is started to heat the water flow on the bottom plate (350) to make the water on the bottom plate (350) heat and precipitate flocculation; Step four: at the same time, the driving motor (410) is started to drive the rotating rod (420) to rotate slowly, so that the rotating rod (420) drives the driving gear disc (430) to rotate, and the driving gear disc (430) drives the support arm (330) to pull the meshing tooth cover (310) to move through the sliding block (440) at the outer ring edge of the driving gear disc (430), because the support arm (330) is limited by the sliding plate (470) and the U-shaped plate (460) and cannot rotate to keep the horizontal state, the meshing tooth cover (310) is pulled to move along the circular track of the sliding block (440) on the driving gear disc (430) to keep the horizontal state, so that the water flow on the bottom plate (350) flows in a spiral shape under the influence of the movement of the meshing tooth cover (310), and the flocculation in the water is filtered by the circularly arranged filter paper (351) along the spiral flow direction of the water flow and adheres to the filter paper (351); Step five: Then the electric push rod (450) starts to pull down, the sliding ring (451) drives the rotating ring (442) to pull the connecting rod (441) to move, the connecting rod (441) pulls the sliding block (440) to move and make it clamped into the inside of the card frame (421), and the sliding ring (451) will drive the telescopic rod (493) to move down at the same time, the telescopic rod (493) drives the connecting plate (492) to move down, the connecting plate (492) presses one end of the two rotating plates (491) to make the two rotating plates (491) rotate and open, so that the two sliding plates (470) move away from each other, and the rotating rollers (471) on the two sliding plates (470) pull the tooth belt (480) to be straight; Step six: Then the driving motor (410) starts again to drive the rotating rod (420) to rotate quickly, the rotating rod (420) drives the driving gear (430) to rotate through the tooth belt (480) by rubbing, the tooth belt (480) rotates between the two rotating rollers (471), and the tooth belt (480) drives the meshing tooth cover (310) to rotate, while the rotating frame (370) does not rotate because it is pulled by the air pipe (380) and the communication pipe (372), the meshing tooth cover (310) drives the closed ring (360) to rotate synchronously through the support rod (341) on the filter screen (340), and the multiple lifting rods (361) on the closed ring (360) keep resisting the adjacent fixed rods (371) to drive the closed ring (360) to keep moving up, while the bottom plate (350) rotates to make the water flow on it produce centrifugal force and fall into the rotating frame (370) through the filter screen (340), then start the air pump, the air pipe (380) blows the flocculation on the filter paper (351) and other impurities in the water to the center of the bottom plate (350), and starts the electromagnetic valve, the sewage pipe (373) discharges the flocculation and impurities; Step seven: Then the water flow falling into the rotating frame (370) flows back into the water tank (210) inside the bottom end of the box (100) through the communication pipe (372), then the electric push rod (450) moves up to reset, the rotating ring (442) touches the connecting rod (441) to drive the sliding block (440) to reset, the other end of the supporting arm (330) moves to the outer ring edge of the driving gear (430) again, then the suction pump (240) sucks part of the water flow into the water tank (210) inside the top of the box (100) again to repeat the cycle of cleaning and filtering.

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