Non-negative pressure water supply device

Abstract

The utility model belongs to the technical field of water supply structures, and particularly relates to a non-negative-pressure water supply device which comprises a pressure-stabilizing adjusting tank, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are arranged on the pressure-stabilizing adjusting tank, and a connecting pipe, a conveying pipe, a sealing cover, a filtering layer and a first telescopic structure are arranged below the water outlet pipe. The connecting pipe is horizontally arranged at one end of the water outlet pipe and communicated with the pressure stabilizing adjusting tank, the connecting pipe is composed of a rectangular pipe and cylindrical pipes arranged at the two ends of the rectangular pipe, and the water outlet pipe and the connecting pipe are of an inverted-T-shaped structure; the conveying pipe is arranged at one end of one cylindrical pipe, the filtering layer is located in the connecting pipe and can move in the connecting pipe, the outer wall of the filtering layer is attached to the inner wall of the cylindrical pipe, the sealing cover is detachably connected with one end of the other cylindrical pipe, and the first telescopic structure is arranged on the sealing cover. The pressure-stabilizing adjusting tank has a filtering function, and meanwhile, the inner wall of the pressure-stabilizing adjusting tank can be automatically cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of water supply devices, in particular to a water supply device without negative pressure. Background Art

[0002] The non-negative pressure water supply equipment is a secondary pressure water supply equipment that is directly connected to the municipal water supply network and supplies water in series based on the residual pressure of the municipal official website to ensure that the pressure of the municipal network is not less than the set protection pressure.

[0003] The existing non-negative pressure water supply equipment does not filter the water sucked out by the water pump, and cannot filter out impurities caused by aging of the water supply pipe, thereby failing to ensure water safety; in addition, scale will form inside the pressure regulating tank after long-term use, and the equipment does not have a descaling function. Utility Model Content

[0004] The utility model aims to provide a non-negative pressure water supply device, which has a filtering function and can automatically clean the inner wall of a pressure-stabilizing and regulating tank.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a non-negative pressure water supply device, comprising a pressure-stabilizing and regulating tank and a water inlet pipe and a water outlet pipe arranged on the pressure-stabilizing and regulating tank, wherein a connecting pipe, a conveying pipe, a sealing cover, a filter layer, and a first telescopic structure are arranged below the water outlet pipe; the connecting pipe is horizontally arranged at one end of the water outlet pipe and is connected with the pressure-stabilizing and regulating tank, the connecting pipe is composed of a rectangular tube and a cylindrical tube arranged at both ends of the rectangular tube, and the water outlet pipe and the connecting pipe are in a L-shaped structure; the conveying pipe is arranged at one end of one of the cylindrical tubes, the filter layer is located in the connecting pipe, the filter layer can move in the connecting pipe, and the outer wall of the filter layer is in contact with the inner wall of the cylindrical tube, the sealing cover is detachably connected to one end of the other cylindrical tube, the first telescopic structure is arranged on the sealing cover, the telescopic end of the first telescopic structure penetrates the sealing cover and is arranged on the filter layer, and an ultrafiltration membrane filter element is arranged in the filter layer;

[0006] A screw, a sliding rod, a sliding sleeve and a shovel sleeve are arranged in the voltage stabilizing and regulating tank. The sliding sleeve is a circular structure, and the shovel sleeve is an annular structure. The shovel sleeve is arranged on the outer wall of the sliding sleeve, and the outer wall of the shovel sleeve fits with the inner wall of the voltage stabilizing and regulating tank; one end of the screw and the sliding rod both pass through the sliding sleeve, the sliding sleeve is threadedly connected to the outer wall of the screw, the sliding sleeve is slidably connected to the outer wall of the sliding rod, and both ends of the screw and the sliding rod are arranged parallel to the inner wall of the voltage stabilizing and regulating tank along the length direction of the voltage stabilizing and regulating tank, and the voltage stabilizing and regulating tank is provided with a motor fixedly connected to one end of the screw.

[0007] In order to ensure normal water supply, as a preferred non-negative pressure water supply device of the utility model, a first hidden sleeve is connected to the side of the bottom of the rectangular tube close to the sealing cover, and a first slidable sealing plug is arranged in the first hidden sleeve and the rectangular tube, and a second telescopic structure fixedly connected to the lower end of the first sealing plug is arranged at the bottom of the first hidden sleeve.

[0008] In order to seal the delivery pipe and prevent sewage from entering the delivery pipe, as a preferred non-negative pressure water supply device of the utility model, a second hidden sleeve is connected to the side of the bottom of the rectangular tube close to the delivery pipe, and a second slidable sealing plug is provided in the second hidden sleeve and the rectangular tube, and a third telescopic structure fixedly connected to the lower end of the second sealing plug is provided at the bottom of the second hidden sleeve.

[0009] In order to discharge the sewage inside the pressure stabilizing and regulating tank, as a preferred non-negative pressure water supply device of the utility model, a drain pipe is arranged at the bottom of the rectangular tube, a one-way valve is arranged on the drain pipe, and the drain pipe is located between the first hidden sleeve and the second hidden sleeve.

[0010] In order to facilitate the selection of the first telescopic structure, the second telescopic structure and the third telescopic structure, as a preferred non-negative pressure water supply device of the utility model, the first telescopic structure, the second telescopic structure and the third telescopic structure are electric telescopic rods, pneumatic telescopic rods or hydraulic telescopic rods.

[0011] In order to enhance the stability of the pressure-stabilizing and regulating tank, as a preferred non-negative-pressure water supply device of the utility model, a bracket is provided at the bottom of the pressure-stabilizing and regulating tank.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model is provided with a connecting pipe, a first telescopic structure and a filter layer. When in use, the first telescopic structure is activated to move the filter layer into the cylindrical tube connected to the delivery pipe. Water passing through the filter layer can filter out impurities such as water rust caused by aging of the water supply pipe, and can filter out substances such as bacteria and viruses in the water, thereby ensuring water safety and improving the practicality of the utility model; in addition, by opening the sealing cover, the filter layer can be cleaned or replaced, thereby ensuring the filtering effect.

[0014] 2. The utility model is provided with a screw, a slide rod, a sliding sleeve, a shovel sleeve and a motor, and the shovel sleeve fits the inner wall of the voltage regulating tank. When in use, the motor is started, and the output end of the motor drives the sliding sleeve to move on the screw and the slide rod. When the shovel sleeve moves, the scale on the inner wall of the voltage regulating tank can be automatically cleaned. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a front view structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the connecting pipe of the utility model;

[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the filter layer of the utility model.

[0019] In the figure: 1. voltage-stabilizing and regulating tank; 2. water inlet pipe; 3. water outlet pipe; 4. connecting pipe; 5. conveying pipe; 6. sealing cover; 7. filtering layer; 8. first telescopic structure; 9. rectangular tube; 10. cylindrical tube; 11. ultrafiltration membrane filter element; 12. screw; 13. sliding rod; 14. sliding sleeve; 15. shovel sleeve; 16. motor; 17. first hidden sleeve; 18. first sealing plug; 19. second telescopic structure; 20. second hidden sleeve; 21. second sealing plug; 22. third telescopic structure; 23. drain pipe; 24. one-way valve; 25. bracket. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 3, a non-negative pressure water supply device, comprising a pressure stabilizing and regulating tank 1, a water inlet pipe 2 and a water outlet pipe 3 arranged on the pressure stabilizing and regulating tank 1. Below the water outlet pipe 3, there are a connecting pipe 4, a conveying pipe 5, a sealing cover 6, a filtering layer 7, and a first telescopic structure 8; the connecting pipe 4 is horizontally arranged at one end of the water outlet pipe 3 and is communicated with the pressure stabilizing and regulating tank 1. The connecting pipe 4 is composed of a rectangular pipe 9 and cylindrical pipes 10 arranged at both ends of the rectangular pipe 9. The water outlet pipe 3 and the connecting pipe 4 form a cross structure; the conveying pipe 5 is arranged at one end of one of the cylindrical pipes 10. The filtering layer 7 is located inside the connecting pipe 4. The filtering layer 7 can move inside the connecting pipe 4, and the outer wall of the filtering layer 7 fits with the inner wall of the cylindrical pipe 10. The sealing cover 6 is detachably connected to one end of the other cylindrical pipe 10. The first telescopic structure 8 is arranged on the sealing cover 6, and the telescopic end of the first telescopic structure 8 penetrates through the sealing cover 6 and is arranged on the filtering layer 7. An ultrafiltration membrane filter element 11 is arranged inside the filtering layer 7;

[0022] Inside the pressure stabilizing and regulating tank 1, there are a screw rod 12, a sliding rod 13, a sliding sleeve 14, and a scraping sleeve 15. The sliding sleeve 14 is circular in structure, and the scraping sleeve 15 is annular in structure. The scraping sleeve 15 is arranged on the outer wall of the sliding sleeve 14, and the outer wall of the scraping sleeve 15 fits with the inner wall of the pressure stabilizing and regulating tank 1; one end of the screw rod 12 and the sliding rod 13 both penetrate through the sliding sleeve 14. The sliding sleeve 14 is threadedly connected to the outer wall of the screw rod 12 and is slidably connected to the outer wall of the sliding rod 13. The two ends of the screw rod 12 and the sliding rod 13 are arranged on the inner wall of the pressure stabilizing and regulating tank 1 in parallel along the length direction of the pressure stabilizing and regulating tank 1. A motor 16 fixedly connected to one end of the screw rod 12 is arranged on the pressure stabilizing and regulating tank 1.

[0023] In this embodiment: Start the first telescopic structure 8 to move the filtering layer 7 into the cylindrical pipe 10 communicated with the conveying pipe 5. The filtering layer 7 fits with the cylindrical pipe 10. When the water in the pressure stabilizing and regulating tank 1 flows through the connecting pipe 4 to the conveying pipe 5, it is filtered through the filtering layer 7, and impurities such as scale generated due to the aging of the water supply pipe are filtered out. And an ultrafiltration membrane filter element 11 is arranged inside the filtering layer 7, and the ultrafiltration membrane filter element 11 can filter out substances such as bacteria and viruses in the water, thus ensuring the safety of water use and improving the practicability of the present utility model at the same time; in addition, by opening the sealing cover 6, the filtering layer can be cleaned or replaced, thus ensuring the filtering effect.

[0024] The scraping sleeve 15 fits with the inner wall of the pressure stabilizing and regulating tank 1. Start the motor 16, and the sliding sleeve 14 moves on the screw rod 12 and the sliding rod 13. When the scraping sleeve 15 moves, it can automatically clean the scale on the inner wall of the pressure stabilizing and regulating tank 1.

[0025] As a technical optimization scheme of the present utility model, on one side of the bottom of the rectangular pipe 9 close to the sealing cover 6, there is a first hidden sleeve 17 communicated. Inside the first hidden sleeve 17 and the rectangular pipe 9, there is a slidable first sealing plug 18. At the bottom of the first hidden sleeve 17, there is a second telescopic structure 19 fixedly connected to the lower end of the first sealing plug 18.

[0026] In this embodiment: when cleaning or replacing the filter layer 7, the filter layer 7 is moved into the left cylindrical tube 10, the second telescopic structure 19 is started, the first sealing plug 18 is moved into the rectangular tube 9, the left cylindrical tube 10 is sealed, and the water outlet pipe 3 and the delivery pipe 5 remain connected to ensure normal water supply of the utility model.

[0027] As a technical optimization solution of the utility model, a second hidden sleeve 20 is connected to the side of the bottom of the rectangular tube 9 close to the conveying pipe 5, and a second slidable sealing plug 21 is arranged in the second hidden sleeve 20 and the rectangular tube 9. A third telescopic structure 22 fixedly connected to the lower end of the second sealing plug 21 is arranged at the bottom of the second hidden sleeve 20.

[0028] In this embodiment, the third telescopic structure 22 is activated to drive the second sealing plug 21 to move into the rectangular tube 9 , thereby blocking the rectangular tube 9 and preventing scale in the pressure stabilizing and regulating tank 1 from entering the delivery pipe 5 .

[0029] As a technical optimization solution of the utility model, a drain pipe 23 is provided at the bottom of the rectangular tube 9 , a one-way valve 24 is provided on the drain pipe 23 , and the drain pipe 23 is located between the first hidden sleeve 17 and the second hidden sleeve 20 .

[0030] In this embodiment: the second sealing plug 21 makes the delivery pipe 5 and the rectangular pipe 9 disconnected, and the one-way valve 24 on the drainage pipe 23 is opened to discharge the sewage cleaned inside the pressure regulating tank 1.

[0031] As a technical optimization solution of the present utility model, the first telescopic structure 8, the second telescopic structure 19 and the third telescopic structure 22 are electric telescopic rods, pneumatic telescopic rods or hydraulic telescopic rods.

[0032] In this embodiment, the first telescopic structure 8, the second telescopic structure 19 and the third telescopic structure 22 can adopt electric telescopic rods, pneumatic telescopic rods or hydraulic telescopic rods.

[0033] As a technical optimization solution of the utility model, a bracket 25 is provided at the bottom of the voltage stabilizing and regulating tank 1 .

[0034] In this embodiment, the stability of the voltage stabilizing and regulating tank 1 is enhanced by providing the bracket 25 .

[0035] Working principle: Start the first telescopic structure 8 to move the filter layer 7 into the cylindrical tube 10 connected to the delivery pipe 5. The filter layer 7 fits with the cylindrical tube 10. When the water in the voltage-stabilizing and regulating tank 1 flows to the delivery pipe 5 through the connecting pipe 4, it is filtered through the filter layer 7, and impurities such as rust in the water caused by the aging of the water supply pipe can be filtered out. In addition, an ultrafiltration membrane filter element 11 is arranged in the filter layer 7, and the ultrafiltration membrane filter element 11 can filter out substances such as bacteria and viruses in the water, thereby ensuring water safety and improving the practicality of the utility model; by opening the sealing cover 6, the filter layer can be cleaned or replaced, thereby ensuring the filtering effect; when cleaning or replacing the filter layer 7, start the second telescopic structure 19 to drive the first sealing plug 18 to move into the rectangular tube 9, and seal the cylindrical tube 10 on the left side. The outlet pipe 3 and the delivery pipe 5 remain in a connected state, which can ensure normal water supply;

[0036] When the pressure stabilizing and regulating tank 1 is to be cleaned, the water inlet pipe 2 is closed, and the third telescopic structure 22 is started to move the second sealing plug 21 into the rectangular tube 9. The second sealing plug 21 makes the delivery pipe 5 and the rectangular tube 9 unconnected. The motor 16 is started, and the output end of the motor 16 drives the sliding sleeve 14 to move on the screw 12 and the sliding rod 13. When the shovel sleeve 15 moves, the scale on the inner wall of the pressure stabilizing and regulating tank 1 can be automatically cleaned, and the one-way valve 24 on the drain pipe 23 is opened, and the sewage in the pressure stabilizing and regulating tank 1 can be discharged through the drain pipe 23; after the cleaning is completed, the second sealing plug 21 moves into the second hidden sleeve 20, and the filter layer 7 continues to move into the right cylindrical tube 10, so that the utility model can supply water normally, and the cleaning of the pressure stabilizing and regulating tank 1 is convenient, which improves the practicality.

[0037] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A non-negative pressure water supply device, comprising a pressure stabilizing and regulating tank (1) and a water inlet pipe (2) and a water outlet pipe (3) arranged on the pressure stabilizing and regulating tank (1), characterized in that: A connecting pipe (4), a delivery pipe (5), a sealing cover (6), a filtering layer (7), and a first telescopic structure (8) are arranged below the water outlet pipe (3); the connecting pipe (4) is arranged horizontally at one end of the water outlet pipe (3) and is connected to the pressure stabilizing and regulating tank (1); the connecting pipe (4) is composed of a rectangular pipe (9) and cylindrical pipes (10) arranged at both ends of the rectangular pipe (9); the water outlet pipe (3) and the connecting pipe (4) are in an L-shaped structure; the delivery pipe (5) is arranged at one end of one of the cylindrical pipes (10). end, the filter layer (7) is located in the connecting tube (4), the filter layer (7) is movable in the connecting tube (4), and the outer wall of the filter layer (7) is in contact with the inner wall of the cylindrical tube (10), the sealing cover (6) is detachably connected to one end of another cylindrical tube (10), the first telescopic structure (8) is arranged on the sealing cover (6), the telescopic end of the first telescopic structure (8) penetrates the sealing cover (6) and is arranged on the filter layer (7), and an ultrafiltration membrane filter element (11) is arranged in the filter layer (7); The voltage-stabilizing and regulating tank (1) is provided with a screw rod (12), a sliding rod (13), a sliding sleeve (14), and a shovel sleeve (15); the sliding sleeve (14) is of a circular structure; the shovel sleeve (15) is of an annular structure; the shovel sleeve (15) is arranged on the outer wall of the sliding sleeve (14), and the outer wall of the shovel sleeve (15) is in contact with the inner wall of the voltage-stabilizing and regulating tank (1); one end of the screw rod (12) and the sliding rod (13) both pass through the sliding sleeve (14); the sliding sleeve (14) is threadedly connected to the outer wall of the screw rod (12); the sliding sleeve (14) is slidably connected to the outer wall of the sliding rod (13); the two ends of the screw rod (12) and the sliding rod (13) are arranged parallel to the inner wall of the voltage-stabilizing and regulating tank (1) along the length direction of the voltage-stabilizing and regulating tank (1); and the voltage-stabilizing and regulating tank (1) is provided with a motor (16) fixedly connected to one end of the screw rod (12).

2. A non-negative pressure water supply device according to claim 1, characterized in that: A first hidden sleeve (17) is connected to the bottom of the rectangular tube (9) on one side close to the sealing cover (6); a first slidable sealing plug (18) is provided in the first hidden sleeve (17) and the rectangular tube (9); and a second telescopic structure (19) fixedly connected to the lower end of the first sealing plug (18) is provided at the bottom of the first hidden sleeve (17).

3. The non-negative pressure water supply device according to claim 1, characterized in that: A second hidden sleeve (20) is connected to the bottom of the rectangular tube (9) on one side close to the delivery tube (5); a second slidable sealing plug (21) is provided inside the second hidden sleeve (20) and the rectangular tube (9); and a third telescopic structure (22) fixedly connected to the lower end of the second sealing plug (21) is provided at the bottom of the second hidden sleeve (20).

4. The non-negative pressure water supply device according to claim 1, characterized in that: A drainage pipe (23) is provided at the bottom of the rectangular tube (9), a one-way valve (24) is provided on the drainage pipe (23), and the drainage pipe (23) is located between the first hidden sleeve (17) and the second hidden sleeve (20).

5. The non-negative pressure water supply device according to claim 4, characterized in that: The first telescopic structure (8), the second telescopic structure (19) and the third telescopic structure (22) are electric telescopic rods, pneumatic telescopic rods or hydraulic telescopic rods.

6. The non-negative pressure water supply device according to claim 1, characterized in that: A support (25) is provided at the bottom of the pressure stabilizing and regulating tank (1).

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