Circulating purification type secondary water supply direct drinking equipment

Abstract

The invention discloses circulating purification type secondary water supply direct drinking equipment, and relates to the technical field of water supply equipment.The circulating purification type secondary water supply direct drinking equipment comprises a base and a water supply mechanism installed at the top of the base, the water supply mechanism comprises a water tank fixedly installed at the top of the base, and the top of the water tank is in through connection with a water inlet pipe; the bottom of the water tank is communicated with a water outlet pipe; a water pump unit is mounted in the middle of the water outlet pipe; a first conveying mechanism is arranged in the water supply mechanism; a second conveying mechanism is arranged at the top of the first conveying mechanism; the first conveying mechanism and the second conveying mechanism independently operate to adaptively drive the water supply mechanism to independently operate in the two environments that the water pressure reaches the standard and the water pressure does not reach the standard respectively, and meanwhile water is purified and self-cleaned. The circulating purification type secondary water supply direct drinking equipment disclosed by the invention has the effects of actively supplying pressure, filtering water quality and simultaneously having a self-cleaning function.

Description

Technical Field

[0001] The present invention relates to the technical field of water supply equipment, and in particular to a circulating purification type secondary water supply direct drinking equipment. Background Art

[0002] Secondary water supply equipment is a system used to supplement the insufficient pressure of municipal water supply. It pressurizes tap water for the second time and then transports it to high-rise buildings or users far away from the municipal pipeline network. It is mainly used to solve the problem of insufficient pressure. The pressure of the municipal pipeline network can usually only meet the direct supply of buildings below 6 floors. High-rise buildings need to achieve stable water supply through secondary pressurization while ensuring water safety. Water pollution is avoided through closed design (such as no negative pressure, box-type equipment).

[0003] At present, the secondary water supply equipment on the market is for municipal water to flow directly into water tanks and water tanks, and the water pressure of the municipal water supply is adjusted by the pressure stabilizing device on the water tank body. On the one hand, this adjustment method is relatively passive. When there are continuous water pressure fluctuations, the pressure stabilizing device inside the tank will work frequently, and the water pump will also increase the start and stop frequency synchronously, resulting in an increase in the frequency of equipment failures and a lack of intelligence. On the other hand, traditional secondary water supply equipment does not have the function of self-cleaning. Residential water is usually mixed with scale that is easy to precipitate. Untreated scale will affect the quality of residents' drinking water. At the same time, it will cause blockage of the internal pipes of the tank over time, affecting the water supply to users and increasing maintenance costs. Summary of the Invention

[0004] The present invention discloses a circulating purification type secondary water supply direct drinking equipment, which aims to solve the technical problems that the secondary water supply equipment on the market lacks intelligence in the water pressure regulation method and does not have the function of self-cleaning, and the operational integrity needs to be improved.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A circulating purification type secondary water supply direct drinking device, comprising a base, a water supply mechanism mounted on the top of the base, the water supply mechanism comprising a water tank fixedly mounted on the top of the base, a water inlet pipe connected through the top of the water tank, a water outlet pipe connected through the bottom of the water tank, the water outlet pipe mounted on the top of the base, and a water pump unit mounted in the middle of the water outlet pipe; A first conveying mechanism is provided inside the water supply mechanism, and the first conveying mechanism includes an L-shaped tube connected to the bottom of the water inlet pipe, the L-shaped tube is distributed inside the water tank, and the end of the L-shaped tube is connected to a central tube, the central tube is vertically distributed inside the water tank, and the lower side of the central tube is connected to a first horizontal tube; A second conveying mechanism is provided on the top of the first conveying mechanism, and the second conveying mechanism includes a second transverse pipe horizontally connected to the upper side of the middle pipe, the end of the second transverse pipe is connected to the second water outlet row, the end of the first transverse pipe is connected to the first water outlet row, and a filter cartridge is installed on the outer sides of the second water outlet row and the first water outlet row; By utilizing the independent operation of the first conveying mechanism and the second conveying mechanism, the water supply mechanism is adapted to drive the water supply mechanism to operate independently in two environments: when the water pressure meets the standard and when the water pressure does not meet the standard, and the water quality is purified and self-cleaned at the same time.

[0006] A first conveying mechanism and a second conveying mechanism are provided inside the water tank. Under normal circumstances, when the water pressure of the municipal water supply pipe connected to the water tank reaches a preset value, the first conveying mechanism will operate, and use a single channel to passively introduce the municipal water supply into the water tank for filtration and storage; when the water pressure of the municipal water supply pipe connected to the water tank does not reach the preset value, the second conveying mechanism will operate, and use another channel to actively introduce the municipal water supply into the water tank for filtration and storage; and when the second conveying mechanism introduces the water supply into the water tank, it will also self-clean the water tank, thereby protecting the pressure stabilizing device of this equipment by active voltage stabilization, thereby improving the service life of this equipment while completing the self-cleaning and filtration of the water quality and the water tank, greatly improving the cleanliness of residents' water and the functionality of traditional equipment.

[0007] In a preferred solution, the first conveying mechanism further comprises a buoyancy valve slidably mounted on the lower interior of the central tube, and the top of the buoyancy valve is fixedly connected to a stirring paddle via a connecting rod.

[0008] A center pipe structure is connected through an L-shaped pipe at the bottom of the water inlet pipe of the water tank, and a stirring paddle structure connected to a buoyancy valve is arranged inside the center pipe. When the water pressure of the municipal water supply pipe connected to the water tank reaches a preset value, the water flow entering the center pipe has sufficient pressure to push the buoyancy valve to move, thereby exposing the first horizontal pipe and introducing the municipal water supply into the interior of the water tank. At the same time, the moving buoyancy valve will also drive the stirring paddle to move vertically to the connection between the L-shaped pipe and the center pipe. As the municipal water supply enters, the water flow will impact the stirring paddle to rotate, thereby cleaning the scale accumulated at the connection between the L-shaped pipe and the center pipe, thereby improving the functionality of traditional equipment.

[0009] In a preferred embodiment, the second conveying mechanism also includes a variable speed motor installed on the top of the water tank, the output end of the variable speed motor horizontally penetrates into the interior of the water tank and is fixedly installed with a pin component, the top of the stirring paddle is fixedly installed with a joint component, the pin component and the joint component are snap-connected, and the bottom of the water tank is connected with a drain valve.

[0010] By additionally arranging a second conveying mechanism on the top of the first conveying mechanism, when the water pressure of the municipal water supply pipe connected to the water tank fails to reach the preset value, the buoyancy valve that loses the pressure limit will drive the stirring paddle to move upward, and utilize the mutual docking of the pin component and the joint component to cooperate with the operation of the variable speed motor to drive the water supply to be back-pumped by the rotation of the stirring paddle, so as to introduce the municipal water supply from the second transverse pipe into the interior of the water tank, and the second water outlet row additionally arranged at the end of the second transverse pipe and the first water outlet row at the end of the first transverse pipe can filter the water supply introduced into the interior of the water tank while the two conveying mechanisms are running, thereby actively pressurizing and replenishing the water inside the water tank, and further filtering the water supply, thereby improving the integrity and functionality of the equipment operation.

[0011] In a preferred solution, a second one-way valve is provided at the connecting end of the second water outlet row and the first water outlet row, and a first one-way valve is provided at the connecting end of the first water outlet row and the first transverse pipe.

[0012] By arranging a second one-way valve at the connecting end of the second water outlet and the first water outlet, and a first one-way valve at the connecting end of the first water outlet and the first transverse pipe, when the water pressure of the municipal water supply pipe connected to the water tank reaches a preset value, the water supply flowing from the first transverse pipe will enter the first water outlet, and at the same time be blocked by the second one-way valve, and be discharged from the first water outlet at a stable flow rate; when the water pressure of the municipal water supply pipe connected to the water tank does not reach the preset value, the water supply flowing from the second transverse pipe will enter the second water outlet, and at the same time be blocked by the first one-way valve, and flow out from the first water outlet and the second water outlet at the same time at a high flow rate, thereby adapting the flow rate of the water supply, maintaining the filtration efficiency of the water supply, and ensuring the integrity of the operation of this equipment.

[0013] From the above, it can be seen that the circulating purification type secondary water supply direct drinking equipment provided by the present invention has the following technical effects.

[0014] First, a middle pipe structure is connected to the bottom of the water inlet pipe through an L-shaped pipe, and a stirring paddle structure connected to a buoyancy valve is arranged inside the middle pipe. When the water pressure of the municipal water supply pipe connected to the water tank reaches a preset value, the water flow entering the middle pipe has enough pressure to push the buoyancy valve to move, thereby exposing the first horizontal pipe and introducing the municipal water supply into the water tank. At the same time, the moving buoyancy valve will also drive the stirring paddle to move vertically to the connection between the L-shaped pipe and the middle pipe. As the municipal water supply enters, the water flow will impact the stirring paddle to rotate, thereby stirring the stack. The scale accumulated at the connection between the L-shaped pipe and the center pipe is cleaned. When the water pressure of the municipal water supply pipe connected to the water tank does not reach the preset value, the buoyancy valve that loses the pressure limit will drive the stirring paddle to move upward. The mutual docking of the pin component and the joint component is coordinated with the operation of the variable speed motor. The municipal water supply is introduced into the interior of the water tank from the additionally set second horizontal pipe by the rotation of the stirring paddle to drive the water supply back pumping, thereby actively pressurizing and replenishing the water inside the water tank. Different operating modes are performed in the two environments, which greatly improves the service life of the passive pressure stabilizing device of the traditional secondary water supply equipment.

[0015] Second: the second water outlet row additionally arranged at the end of the second transverse pipe and the first water outlet row at the end of the first transverse pipe can filter the water supply introduced into the water tank while the two transport mechanisms are running, and the connecting end of the second water outlet row and the first water outlet row is provided with a second one-way valve, and the connecting end of the first water outlet row and the first transverse pipe is provided with a first one-way valve. When the water pressure of the municipal water supply pipe connected to the water tank reaches a preset value, the water supply flowing from the first transverse pipe will enter the first water outlet row and be blocked by the second one-way valve, and be discharged from the first water outlet row at a stable flow rate and be filtered by the filter cartridge; when the water pressure of the municipal water supply pipe connected to the water tank does not reach the preset value At this time, the water supply flowing from the second horizontal pipe will enter the second water outlet row, and at the same time will be blocked by the first one-way valve, and will flow out from the first water outlet row and the second water outlet row at the same time at a high flow rate, thereby adapting to the flow rate of the water supply, maintaining the filtration efficiency of the water supply, and ensuring the integrity of the operation of this equipment; at the same time, when the accumulated water inside the water tank is drained, the water supply that is actively pressurized by the motor and enters the water tank through the second horizontal pipe will directly impact the surface of the filter cartridge. Since the inside of the water tank is in a hollow state, the internal pressure of the filter cartridge is greater than the external pressure at this time, which can wash away the scale adhering to the inner surface of the filter cartridge, thereby realizing the self-cleaning function of the equipment and further improving the functionality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure proposed by the present invention.

[0017] Figure 2 This is a top view of the overall structure proposed by the present invention.

[0018] Figure 3This is a cross-sectional view of the internal structure of the water tank proposed by the present invention.

[0019] Figure 4 The present invention proposes Figure 3 A magnified view of the structure at point A.

[0020] Figure 5 This is a schematic structural diagram of the first conveying mechanism proposed in the present invention.

[0021] Figure 6 This is a cross-sectional view of the first conveying mechanism structure proposed in the present invention.

[0022] Figure 7 This is an exploded diagram of the second water supply mechanism structure proposed in the present invention.

[0023] Figure 8 This is a schematic diagram of the surrounding structure of the stirring paddle proposed in the present invention.

[0024] Figure 9 This is a schematic diagram of the operating status of the first water supply mechanism proposed in the present invention.

[0025] Figure 10 This is a schematic diagram of the operating status of the second water supply mechanism proposed in the present invention.

[0026] In the figure: 1. base; 2. water supply mechanism; 201. water tank; 202. water inlet pipe; 203. water outlet pipe; 204. water pump unit; 205. pressure gauge; 206. energy storage tank; 3. first conveying mechanism; 301. L-shaped pipe; 302. center pipe; 3021. pressure stabilizing zone; 303. first transverse pipe; 304. buoyancy valve; 305. connecting rod; 306. stirring paddle; 307. elastic member; 4. second conveying mechanism; 401. second transverse pipe; 402. second water outlet; 4021. second one-way valve; 403. first water outlet; 4031. first one-way valve; 404. filter cartridge; 405. speed-changing motor; 406. latch member; 407. joint member; 4071. inner recess; 408. drain valve; 409. drain pipe. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] The circulating purification type secondary water supply direct drinking equipment disclosed by the present invention is mainly used in the scenario of secondary pressurized water supply for residential areas.

[0029] Reference Figures 1 to 10A circulating purification type secondary water supply direct drinking device includes a base 1 and a water supply mechanism 2 installed on the top of the base 1. The water supply mechanism 2 includes a water tank 201 fixedly installed on the top of the base 1. The top of the water tank 201 is connected to a water inlet pipe 202, and the bottom of the water tank 201 is connected to a water outlet pipe 203. The water outlet pipe 203 is mounted on the top of the base 1, and a water pump unit 204 is installed in the middle of the water outlet pipe 203. A first conveying mechanism 3 is provided inside the water supply mechanism 2. The first conveying mechanism 3 includes an L-shaped tube 301 connected to the bottom of the water inlet pipe 202. The L-shaped tube 301 is distributed inside the water tank 201. The end of the L-shaped tube 301 is connected to a central tube 302. The central tube 302 is vertically distributed inside the water tank 201. The lower side of the central tube 302 is connected to a first horizontal tube 303. A second conveying mechanism 4 is provided on top of the first conveying mechanism 3. The second conveying mechanism 4 includes a second transverse pipe 401 horizontally connected to the upper side of the central pipe 302. The end of the second transverse pipe 401 is connected to the second water outlet drain 402. The end of the first transverse pipe 303 is connected to the first water outlet drain 403. A filter cartridge 404 is installed on the outer sides of the second water outlet drain 402 and the first water outlet drain 403. By utilizing the independent operation of the first conveying mechanism 3 and the second conveying mechanism 4, the water supply mechanism 2 is adapted to be driven to operate independently in two environments: the water pressure meets the standard and the water pressure does not meet the standard, and the water quality is purified and self-cleaned at the same time.

[0030] In this embodiment: the top of the water inlet pipe 202 is connected to the municipal water supply pipe. When in use, the municipal water supply pipe will introduce water into the interior of the water inlet pipe 202. At this time, when the water pressure of the municipal water supply pipe reaches the preset value, the water supply entering the water inlet pipe 202 will enter the interior of the middle pipe 302 through the L-shaped pipe 301 and be introduced into the interior of the water tank 201 through the first conveying mechanism 3. When the water pressure of the municipal water supply pipe does not reach the preset value, the water supply entering the water inlet pipe 202 will enter the interior of the middle pipe 302 through the L-shaped pipe 301 and be introduced into the interior of the water tank 201 through the second conveying mechanism 4. At the same time, when the residential area uses water, the water pump unit 204 is driven by the external frequency converter to start running, and the water supply inside the water tank 201 is introduced into the residential area through the outlet pipe 203.

[0031] Among them, a pressure gauge 205 is installed on the top of the water tank 201 and the top of the water outlet pipe 203 respectively. An energy storage tank 206 is installed on the top of the water tank 201. The energy storage tank 206 is horizontally distributed on the side of the pressure gauge 205. The pressure gauge 205 is used to observe the water pressure inside the water tank 201. When the water pressure is unbalanced, the air pressure accumulated in the energy storage tank 206 is introduced into the interior of the water tank 201, thereby passively maintaining the water pressure balance.

[0032] Reference Figure 3、 Figures 5 to 8 In a preferred embodiment, the first conveying mechanism 3 further includes a buoyancy valve 304 slidably mounted at the bottom of the middle tube 302 , and the top of the buoyancy valve 304 is fixedly connected to a stirring paddle 306 via a connecting rod 305 .

[0033] When the water pressure of the municipal water supply pipe reaches a preset value, the water supply entering the water inlet pipe 202 will enter the interior of the middle pipe 302 through the L-shaped pipe 301 and push the buoyancy valve 304, causing the buoyancy valve 304 to move vertically downward, exposing the port of the first transverse pipe 303. At this time, the water supply located inside the middle pipe 302 will be introduced into the interior of the water tank 201 through the first transverse pipe 303, and the moving buoyancy valve 304 will also drive the stirring paddle 306 to move vertically through the connecting rod 305, causing the stirring paddle 306 to move to the connection between the middle pipe 302 and the L-shaped pipe 301. At this time, the water supply flowing along the inside of the middle pipe 302 will also push the stirring paddle 306 to rotate, thereby cleaning the scale at the connection between the middle pipe 302 and the L-shaped pipe 301.

[0034] Among them, a pressure stabilizing zone 3021 is opened through the bottom of the middle tube 302, and the buoyancy valve 304 is slidably distributed above the pressure stabilizing zone 3021. The water supply inside the water tank 201 contacts the lower end of the buoyancy valve 304 through the pressure stabilizing zone 3021, so that the pressure on the buoyancy valve 304 is kept balanced.

[0035] Furthermore, an elastic member 307 is fixedly installed at the bottom of the middle tube 302, and the top of the elastic member 307 is fixedly connected to the bottom of the buoyancy valve 304. When the water pressure on the top of the buoyancy valve 304 does not reach the preset value, the elastic member 307 that undergoes elastic deformation will push the buoyancy valve 304 to move vertically, thereby causing the joint component 407 and the pin component 406 to dock and engage.

[0036] Reference Figures 3 to 8 In a preferred embodiment, the second conveying mechanism 4 also includes a variable speed motor 405 installed on the top of the water tank 201. The output end of the variable speed motor 405 horizontally penetrates into the interior of the water tank 201 and is fixedly installed with a latch component 406. A joint component 407 is fixedly installed on the top of the stirring paddle 306. The latch component 406 and the joint component 407 are snap-connected. A drain valve 408 is connected to the bottom of the water tank 201.

[0037] When the water pressure in the municipal water supply pipe does not reach the preset value, the water supply entering the water inlet pipe 202 does not have enough pressure to push the buoyancy valve 304. At this time, the joint component 407 and the latch component 406 on the top of the stirring paddle 306 are engaged, and the variable speed motor 405 is started, and the stirring paddle 306 is driven to reverse through the connected joint component 407 and the latch component 406. At this time, the water supply inside the middle pipe 302 will be pulled by the stirring paddle 306 and flow from the second transverse pipe 401; and when the water supply flows from the first transverse pipe 303, it will be discharged from the first water outlet 403 to the inside of the water tank 201, and will be filtered by the filter cartridge 404 while being discharged; when the water supply flows from the second transverse pipe 401, it will be discharged from the second water outlet 402 and the first water outlet 403 to the inside of the water tank 201 simultaneously, and will be filtered by the filter cartridge 404 while being discharged. 4; at this time, due to the accumulated water inside the water tank 201, the internal and external pressures of the filter cartridge 404 are the same. When the worker needs to clean the inside of the water tank 201, the worker opens the drain valve 408 at the bottom of the water tank 201, causing the water supply accumulated inside the water tank 201 to be discharged, and at the same time starts the water supply pipe connected to the top of the water inlet pipe 202, causing the high-pressure water flow to be synchronously sprayed out from the second water outlet 402 and the first water outlet 403. At this time, the internal pressure of the filter cartridge 404 is greater than the external pressure, which will bring the scale adhered to the inner wall of the filter cartridge 404 out of the filter cartridge 404 and discharge it from the drain valve 408; wherein, the end of the first horizontal pipe 303 is connected with a drain pipe 409, which is vertically distributed inside the drain valve 408, and the remaining scale accumulated inside the filter cartridge 404 will be discharged from the drain pipe 409.

[0038] Furthermore, an inner recess 4071 is provided on the top of the joint member 407 , and the inner recess 4071 assists the latch member 406 to be inserted into the interior of the joint member 407 .

[0039] Reference Figure 1 and Figure 3 In a preferred embodiment, a second one-way valve 4021 is provided at the connection end of the second water outlet row 402 and the first water outlet row 403 , and a first one-way valve 4031 is provided at the connection end of the first water outlet row 403 and the first transverse pipe 303 .

[0040] When the water pressure in the municipal water supply pipe does not reach the preset value, the variable speed motor 405 actively runs to pressurize the municipal water supply pipe. When the water flows through the second transverse pipe 401, it will be discharged synchronously from the second water outlet 402 and the first water outlet 403 to the inside of the water tank 201 (the water supply flow rate increases, providing more paths for water supply circulation), and at the same time, it is restricted by the first one-way valve 4031 and cannot enter the inside of the first transverse pipe 303; when the water pressure in the municipal water supply pipe reaches the preset value, the water will be discharged normally from the first water outlet 403 to the inside of the water tank 201, and at the same time, it is restricted by the second one-way valve 4021 and cannot enter the inside of the second water outlet 402.

[0041] When the water pressure in the water supply pipe reaches a preset value, the water in the water supply pipe 202 enters the middle pipe 302 through the L-shaped pipe 301 and pushes the buoyancy valve 304, causing the buoyancy valve 304 to move vertically downward, exposing the port of the first transverse pipe 303. At this time, the water in the middle pipe 302 is introduced into the water tank 201 through the first transverse pipe 303, and the moving buoyancy valve 304 drives the stirring paddle 306 to move vertically through the connecting rod 305, causing the stirring paddle 306 to move to the connection between the middle pipe 302 and the L-shaped pipe 301. At this time, the water flowing along the middle pipe 302 will also push the stirring paddle 306 to rotate, thereby cleaning the scale at the connection between the middle pipe 302 and the L-shaped pipe 301. The specific state is shown in the attached figure. Figure 9 As shown; When the water pressure in the municipal water supply pipe does not reach the preset value, the water supply entering the water inlet pipe 202 does not have enough pressure to push the buoyancy valve 304. At this time, the joint component 407 and the latch component 406 on the top of the stirring paddle 306 are engaged, and the variable speed motor 405 is started, and the stirring paddle 306 is driven to reverse through the connected joint component 407 and the latch component 406. At this time, the water supply inside the middle pipe 302 is pulled by the stirring paddle 306 and flows from the second transverse pipe 401; and when the water supply flows from the first transverse pipe 303, it is discharged from the first water outlet row 403 to the inside of the water tank 201, and is filtered by the filter cartridge 404 while being discharged; when the water supply flows from the second transverse pipe 401, it is discharged from the second water outlet row 402 and the first water outlet row 403 to the inside of the water tank 201 synchronously, and is filtered by the filter cartridge 404 while being discharged. The specific state is shown in the attached figure. Figure 10 As shown; At this time, due to the accumulated water inside the water tank 201, the internal and external pressures of the filter cartridge 404 are the same. When the worker needs to clean the inside of the water tank 201, the worker opens the drain valve 408 at the bottom of the water tank 201, causing the water accumulated inside the water tank 201 to be discharged. At the same time, the water supply pipe connected to the top of the water inlet pipe 202 is started, causing high-pressure water to be ejected synchronously from the second water outlet 402 and the first water outlet 403. At this time, the internal pressure of the filter cartridge 404 is greater than the external pressure, which will bring out the scale adhered to the inner wall of the filter cartridge 404 from the filter cartridge 404 and discharge it from the drain valve 408.

[0042] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A circulating purification type secondary water supply direct drinking device, comprising a base (1), a water supply mechanism (2) installed on the top of the base (1), characterized in that: The water supply mechanism (2) comprises a water tank (201) fixedly mounted on the top of the base (1); a water inlet pipe (202) is connected through the top of the water tank (201); a water outlet pipe (203) is connected through the bottom of the water tank (201); the water outlet pipe (203) is mounted on the top of the base (1); and a water pump unit (204) is installed in the middle of the water outlet pipe (203); A first conveying mechanism (3) is provided inside the water supply mechanism (2), the first conveying mechanism (3) comprising an L-shaped tube (301) connected to the bottom of the water inlet pipe (202), the L-shaped tube (301) being distributed inside the water tank (201), the end of the L-shaped tube (301) being connected to a center tube (302), the center tube (302) being vertically distributed inside the water tank (201), and the lower side of the center tube (302) being connected to a first horizontal tube (303); A second conveying mechanism (4) is provided on the top of the first conveying mechanism (3), the second conveying mechanism (4) comprises a second transverse pipe (401) horizontally connected to the upper side of the central pipe (302), the end of the second transverse pipe (401) is connected to the second water outlet (402), the end of the first transverse pipe (303) is connected to the first water outlet (403), and a filter cartridge (404) is installed on the outer sides of the second water outlet (402) and the first water outlet (403); By utilizing the independent operation of the first conveying mechanism (3) and the second conveying mechanism (4), the water supply mechanism (2) is adapted to be driven to operate independently in two environments: one in which the water pressure meets the standard and the other in which the water pressure does not meet the standard, while simultaneously purifying and self-cleaning the water quality.

2. A circulating purification type secondary water supply direct drinking equipment according to claim 1, characterized in that: The first conveying mechanism (3) further comprises a buoyancy valve (304) slidably mounted on the lower interior of the central tube (302), and the top of the buoyancy valve (304) is fixedly connected to a stirring paddle (306) via a connecting rod (305).

3. A circulating purification type secondary water supply direct drinking equipment according to claim 2, characterized in that: The second conveying mechanism (4) further comprises a variable speed motor (405) mounted on the top of the water tank (201); an output end of the variable speed motor (405) horizontally penetrates into the interior of the water tank (201) and is fixedly mounted with a latch member (406); a joint member (407) is fixedly mounted on the top of the stirring paddle (306); the latch member (406) and the joint member (407) are engaged and connected; and a drain valve (408) is connected through the bottom of the water tank (201).

4. A circulating purification type secondary water supply direct drinking equipment according to claim 3, characterized in that: A pressure gauge (205) is installed on the top of the water tank (201) and the top of the water outlet pipe (203), respectively.

5. The circulating purification type secondary water supply direct drinking equipment according to claim 4 is characterized in that: A pressure stabilizing zone (3021) is provided through the bottom of the middle tube (302), and the buoyancy valve (304) is slidably distributed above the pressure stabilizing zone (3021).

6. The circulating purification type secondary water supply direct drinking equipment according to claim 5 is characterized in that: An elastic member (307) is fixedly mounted on the bottom of the central tube (302), and the top of the elastic member (307) is fixedly connected to the bottom of the buoyancy valve (304).

7. The circulating purification type secondary water supply direct drinking equipment according to claim 6 is characterized in that: The top of the joint member (407) is provided with an inner recess (4071), and the inner recess (4071) assists the latch member (406) in being inserted into the interior of the joint member (407).

8. The circulating purification type secondary water supply direct drinking equipment according to claim 7 is characterized in that: A second one-way valve (4021) is provided at the connection end between the second water outlet row (402) and the first water outlet row (403), and a first one-way valve (4031) is provided at the connection end between the first water outlet row (403) and the first transverse pipe (303).

9. The circulating purification type secondary water supply direct drinking equipment according to claim 8, characterized in that: The end of the first horizontal pipe (303) is connected to a sewage pipe (409), and the sewage pipe (409) is vertically distributed inside the sewage valve (408).

10. The circulating purification type secondary water supply direct drinking equipment according to claim 9, characterized in that: An energy storage box (206) is installed on the top of the water tank (201), and the energy storage box (206) is horizontally distributed on the side of the pressure gauge (205).

Images