A box-type non-negative pressure water supply equipment with self-cleaning function

Abstract

The present invention discloses a box-type non-negative pressure water supply device with a self-cleaning function, including a steady flow compensator body. One end of the steady flow compensator body is provided with a connecting pipe. In this box-type non-negative pressure water supply device with a self-cleaning function, by arranging an energy storage tank in series with the steady flow compensator body, while ensuring stable pressure water supply, when there is a large amount of instantaneous water usage in places such as schools, the water in the energy storage tank can cooperate with the steady flow compensator body to supply water, avoiding the entire device from stopping water supply due to the water flow in the steady flow compensator body running out. Through the arranged conversion mechanism, the water flow speed entering the energy storage tank through the connecting pipe can be slowed down, avoiding the impact of the water flow on the inner wall of the energy storage tank when the water enters the energy storage tank, resulting in the shaking of the energy storage tank. At the same time, the conversion mechanism drives the cleaning mechanism to work to cooperate with scraping the inner wall of the energy storage tank, avoiding the phenomenon of scale formation on the inner wall of the tank and ensuring the cleaning performance of the water supply.

Description

Technical Field

[0001] The present invention relates to the technical field of non-negative pressure water supply equipment, and specifically relates to a box-type non-negative pressure water supply equipment with a self-cleaning function. Background Technique

[0002] In people's daily life, water resources are essential. Water supply refers to the provision of water resources to commercial organizations, communities, or individuals through public facilities. The transportation of water is usually through water pumps and pipelines, and irrigation is also included. Water of substandard quality is likely to cause pollution, so it is necessary to conduct on-line monitoring of water quality.

[0003] A non-negative pressure water supply equipment is a pressurized water supply unit that is directly connected to the municipal water supply pipe network and supplies water in series and superimposed pressure on the basis of the remaining pressure of the municipal pipe network to ensure that the pressure of the municipal pipe network is not less than the set protection pressure (the set pressure must be higher than the pressure demand of the direct supply area of the community, generally not less than 1.2 Kg). The stable flow compensator is one of the important components of the non-negative pressure water supply equipment. The system sets a constant pressure value. If the pipe network pressure is higher than the set pressure value, the pressure transmitter will feedback the pipe network pressure to the frequency conversion control cabinet, and the tap water can directly reach the user pipe network through the direct supply pipeline to supply water to the user. When the municipal pipe network pressure changes or the water consumption of the user pipe network changes, causing the pipe pressure to be lower than the set pressure, the pressure transmitter will feedback the pipe network pressure to the PlD controller in the frequency conversion control cabinet. The output frequency of the frequency converter is adjusted through the PlD controller, the water pump unit is started, and the speed of the water pump is adjusted to maintain constant pressure water supply; if the water supply requirement cannot be met, the control cabinet will control the start and stop of multiple industrial frequency pumps and the speed of the frequency conversion pump, so as to meet the requirements of constant pressure variable water supply. When the detection device detects that the actual water consumption is less than the water supply flow of the water supply pipe network, there will be no negative pressure in the pipe network at this time. At this time, the stable flow low-energy compensator enters the energy storage state. When the stored energy reaches a certain limit, part of the excess energy is compensated to the high-energy compensator through the stable flow self-balancing compensation device, and part of it is released to the water supply pipe network in the form of pressure to realize the small-flow pressure maintenance of the pipe network; when the detection device detects that the actual water consumption is greater than the water supply flow of the water supply pipe network, the stable flow high-energy compensator will release the originally stored energy to compensate for the energy shortage at this time to ensure the pressure balance in the whole system.

[0004] At present, when the energy storage cavity of the existing stable flow compensator is in use, although its energy storage cavity plays a role in storing water and ensuring the stable flow compensation in the municipal water supply pipe network, the compensation cavity of this device only has the function of storing water. Although it has the function of secondary stable flow compensation, in the case of a large instantaneous water consumption, such as in school dormitories, when the instantaneous water consumption is too large, there will still be a phenomenon that the water flow in the compensation cavity runs out and the entire equipment stops supplying water. For this reason, we propose a box-type non-negative pressure water supply equipment with a self-cleaning function. Summary of the Invention

[0005] The object of the present invention is to provide a box-type non-negative pressure water supply device with a self-cleaning function to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: A box-type non-negative pressure water supply device with a self-cleaning function, including a steady flow compensator body. One end of the steady flow compensator body is provided with a connecting pipe, one end of the connecting pipe is provided with an energy storage tank, and a conversion mechanism capable of slowing down the water flow velocity in the connecting pipe is provided near the energy storage tank end of the connecting pipe; a cleaning mechanism capable of scraping the inner wall of the energy storage tank is provided on the inner wall of the energy storage tank, and the cleaning mechanism is connected to the conversion mechanism.

[0007] Preferably, the conversion mechanism includes an impeller arranged on the inner wall of the connecting pipe near the energy storage tank end. Both ends of the impeller are connected to the inner wall of the connecting pipe. One end of the impeller penetrates through the inner wall of the connecting pipe and is provided with a helical gear one. A helical gear two is arranged outside the helical gear one, a fixed box is arranged outside the helical gear two, a driving gear one is arranged at one end of the helical gear two, a driving chain is arranged outside the driving gear one, a driving gear two is arranged at one end of the driving chain, and the driving gear two is connected to the cleaning mechanism.

[0008] Preferably, the cleaning mechanism includes a plurality of cleaning plates arranged on the inner wall of the energy storage tank. Moving blocks are respectively arranged on both sides of the cleaning plates. A moving groove capable of slidingly connecting with the moving blocks is arranged on the inner wall of the energy storage tank. A limiting member capable of limiting the cleaning plates is arranged on the inner wall of the moving groove. A reciprocating lead screw is arranged on the inner wall of the energy storage tank. One end of the reciprocating lead screw is connected to the helical gear two. A moving plate is arranged outside the reciprocating lead screw. The moving plate is slidably connected to the inner wall of the moving groove. A connecting member capable of alternately connecting with a plurality of cleaning plates is arranged outside the moving plate, and the connecting member is connected to the cleaning plates.

[0009] Preferably, the limiting member includes a trapezoidal block arranged on the inner wall of the moving groove. A limiting block one is arranged outside the trapezoidal block. A limiting groove one capable of slidingly connecting with the limiting block one is arranged on the inner wall of the energy storage tank. One end of the limiting block one is provided with a return spring one, and one end of the return spring one is connected to the inner wall of the energy storage tank.

[0010] Preferably, the connecting member includes pressing blocks arranged on both sides of the moving plate. A clamping block is arranged outside the pressing block. A communicating groove capable of clamping with the clamping block is arranged on the inner wall of the pressing block. A switching member capable of alternately clamping the clamping blocks on both sides of the moving plate with the communicating groove is arranged on the inner wall of the communicating groove. The clamping block is slidably connected to the inner wall of the cleaning plate. Limiting blocks two are respectively arranged on both sides of the clamping block. A limiting groove two capable of slidingly connecting with the limiting block two is arranged on the inner wall of the cleaning plate. One end of the limiting block two is provided with a return spring two, and one end of the return spring two is connected to the inner wall of the cleaning plate.

[0011] Preferably, the switching member includes a push rod disposed on the inner wall of the communication groove. A slider is provided outside the push rod. A sliding groove capable of slidably connecting with the slider is provided on the inner wall of the communication groove. A positioning block is provided on the inner wall of the sliding groove. On both sides of one end of the positioning block, there are respectively provided third limiting blocks. A third limiting groove capable of slidably connecting with the third limiting blocks is provided on the inner wall of the moving plate. One end of the third limiting block is provided with a third return spring. One end of the third return spring is connected to the inner wall of the cleaning plate.

[0012] Preferably, a semi-circular plate is provided outside the cleaning plate. A plurality of inclined plates are provided on the inner wall of the semi-circular plate.

[0013] Preferably, the inclined plates on the inner walls of the plurality of cleaning plates are arranged staggeredly.

[0014] Preferably, inclined ends are respectively provided outside the extrusion block and the clamping block.

[0015] Preferably, the positioning block is hemispherical in shape.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. When the present invention is in use, by arranging the energy storage tank and the steady flow compensator body in series, while ensuring stable water supply, in the case of a large amount of instantaneous water usage in schools and other places, the water in the energy storage tank can cooperate with the steady flow compensator body to supply water, avoiding the entire device from stopping water supply due to the water flow in the steady flow compensator body running out.

[0018] 2. When the present invention is in use, through the arranged conversion mechanism, the water flow rate entering the energy storage tank through the communication pipe can be slowed down, avoiding the impact of the water flow on the inner wall of the energy storage tank when the water enters the energy storage tank, resulting in the shaking of the energy storage tank, improving the service life of the energy storage tank. At the same time, the conversion mechanism drives the cleaning mechanism to work to cooperate with scraping the inner wall of the energy storage tank, avoiding the phenomenon of scale formation on the inner wall of the tank and ensuring the cleanliness of the water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a front sectional view of the structure conversion mechanism of the present invention;

[0021] Figure 3 It is a side view of the structure conversion mechanism of the present invention;

[0022] Figure 4 It is a connection diagram of the structure conversion mechanism and the cleaning mechanism of the present invention;

[0023] Figure 5 It is a side sectional view of the structure energy storage tank of the present invention;

[0024] Figure 6 Side view sectional view schematic diagram of the cleaning plate of the structure of the present invention;

[0025] Figure 7 Front view sectional view schematic diagram of the cleaning mechanism of the structure of the present invention;

[0026] Figure 8 Front view sectional view schematic diagram of the limiting member of the structure of the present invention;

[0027] Figure 9 Top view sectional view schematic diagram of the connecting member of the structure of the present invention;

[0028] Figure 10 Front view sectional view schematic diagram of the connecting member of the structure of the present invention;

[0029] Figure 11 Schematic diagram of the series connection of the steady flow compensator body and multiple energy storage boxes of the structure of the present invention;

[0030] In the figure: 1 - steady flow compensator body 1; 2 - connecting pipe; 3 - energy storage box; 4 - conversion mechanism; 40 - impeller; 41 - first helical gear; 42 - second helical gear; 43 - fixed box; 44 - first transmission gear; 45 - transmission chain; 46 - second transmission gear; 5 - cleaning mechanism; 50 - cleaning plate; 51 - moving block; 52 - moving groove; 53 - limiting member; 54 - reciprocating lead screw; 55 - moving plate; 56 - connecting member; 57 - trapezoidal block; 58 - first limiting block; 59 - first limiting groove; 5A - first return spring; 5B - extrusion block; 5C - clamping block; 5D - communicating groove; 5E - switching member; 5F - second limiting block; 5G - second limiting groove; 5H - second return spring; 5J - push rod; 5K - slider; 5L - sliding groove; 5M - positioning block; 5N - third limiting block; 5P - third limiting groove; 5Q - third return spring; 5R - semi - ring plate; 5S - inclined plate; 5T - inclined end. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Embodiment 1

[0033] Please refer to Figures 1-10, the present invention provides a technical solution: a box-type non-negative pressure water supply device with a self-cleaning function, including a steady flow compensator body 1. One end of the steady flow compensator body 1 is connected to a connecting pipe 2. One end of the connecting pipe 2 is connected to an energy storage tank 3. A conversion mechanism 4 capable of slowing down the water flow velocity in the connecting pipe 2 is provided at one end of the connecting pipe 2 close to the energy storage tank 3. A cleaning mechanism 5 capable of scraping the inner wall of the energy storage tank 3 is provided on the inner wall of the energy storage tank 3. The cleaning mechanism 5 is connected to the conversion mechanism 4. During use, by arranging the energy storage tank 3 and the steady flow compensator body 1 in series, while ensuring stable pressure water supply, in the case of a large amount of instantaneous water usage in schools and other places, the water in the energy storage tank 3 can cooperate with the steady flow compensator body 1 to supply water, avoiding the entire device from stopping water supply due to the water flow in the steady flow compensator body 1 running out. By arranging the conversion mechanism 4, the water flow velocity entering the energy storage tank 3 through the connecting pipe 2 can be slowed down, avoiding the impact of the water flow on the inner wall of the energy storage tank 3 when the water enters the energy storage tank 3, resulting in the shaking of the energy storage tank 3, improving the service life of the energy storage tank 3. At the same time, the conversion mechanism 4 drives the cleaning mechanism 5 to work to cooperate with scraping the inner wall of the energy storage tank 3, avoiding the phenomenon of scale formation on the inner wall of the tank and ensuring the cleanliness of the water supply.

[0034] The conversion mechanism 4 includes an impeller 40 located on the inner wall of the connecting pipe 2 close to the energy storage tank 3. Both ends of the impeller 40 are rotatably connected to the inner wall of the connecting pipe 2, and the impeller 40 is located on the upper inner wall of the connecting pipe 2 to cooperate with the water flow flowing in the connecting pipe 2 to be able to drive the impeller 40 to rotate. One end of the impeller 40 penetrates through the inner wall of the connecting pipe 2 and is fixedly connected to a first helical gear 41. A second helical gear 42 is meshed outside the first helical gear 41. The second helical gear 42 is rotatably connected to the inner wall of the fixed box 43. One end of the second helical gear 42 is fixedly connected to a first transmission gear 44. A transmission chain 45 is meshed outside the first transmission gear 44. One end of the transmission chain 45 is meshed with a second transmission gear 46. The second transmission gear 46 is connected to the cleaning mechanism 5. When the conversion mechanism 4 works, the water flow flowing in the connecting pipe 2 drives the impeller 40 to rotate. At the same time, the impeller 40 slows down the water flow velocity in the flow pipe that is about to enter the energy storage tank 3. The rotation of the impeller 40 drives the rotation of the first helical gear 41. The rotation of the first helical gear 41 drives the rotation of the second helical gear 42. The second helical gear 42 drives the rotation of the first transmission gear 44. The first transmission gear 44 drives the rotation of the transmission chain 45. The transmission chain 45 drives the rotation of the second transmission gear 46. The second transmission gear 46 drives the cleaning mechanism 5 to work to cooperate with the cleaning mechanism 5 to scrape the inner wall of the energy storage tank 3, avoiding the mixture of impurities in the water flow from causing scale formation on the inner wall of the energy storage tank 3.

[0035] The cleaning mechanism 5 includes a plurality of cleaning plates 50 slidably connected to the inner wall of the energy storage tank 3. There are two cleaning plates 50, which are respectively located on both sides of the inner wall of the energy storage tank 3. A semi-circular plate 5R is fixedly connected to one side of the cleaning plate 50 close to the connecting pipe 2. A plurality of inclined plates 5S are fixedly connected to the inner wall of the semi-circular plate 5R to cooperate with the diversion of the water flow entering through the connecting pipe 2 so as to reduce the impact force of the water flow entering. And the inclined plates 5S on the inner walls of the two cleaning plates 50 are staggeredly arranged. Moving blocks 51 are respectively fixedly connected to both sides of the cleaning plate 50. A moving groove 52 capable of slidably connecting with the moving block 51 is provided on the inner wall of the energy storage tank 3. A limiting member 53 capable of limiting the cleaning plate 50 is provided on the inner wall of the moving groove 52. The reciprocating lead screw 54 is rotatably connected to the inner wall of the energy storage tank 3. One end of the reciprocating lead screw 54 is fixedly connected to the helical gear two 42. A moving plate 55 is threadedly connected to the outside of the reciprocating lead screw 54. The moving plate 55 is slidably connected to the inner wall of the moving groove 52. A connecting member 56 capable of alternately connecting with a plurality of cleaning plates 50 is provided on the outside of the moving plate 55. The connecting member 56 is connected to the cleaning plate 50. When the cleaning mechanism 5 works, the transmission gear two 46 drives the reciprocating lead screw 54 to rotate. The reciprocating lead screw 54 drives the moving plate 55 to move. The moving plate 55 is connected to one of the cleaning plates 50 through the connecting member 56. Thus, the movement of the moving plate 55 drives the cleaning plate 50 connected thereto to move. The cleaning plate 50 moves to cooperate with the scraping and cleaning of the inner wall of the energy storage tank 3 to prevent scale from generating on the inner wall of the energy storage tank 3. And the remaining cleaning plates 50 are fixed to the inner wall of the moving groove 52 through the limiting member 53, so that the semi-circular plate 5R inside the cleaning plate 50 is attached to the connection part between the energy storage tank 3 and the connecting pipe 2. The inclined plates 5S slow down the flowing speed of the inflowing water flow to prevent the water flow from directly impacting the inner wall of the energy storage tank 3. When the moving plate 55 drives the cleaning plate 50 to move back and forth along the moving groove 52 for one time, the connection with it is released through the connecting member 56 and connected to the remaining cleaning plate 50 to cooperate with the cleaning of the other half of the inner wall of the cleaning tank. The two cleaning plates 50 alternately move on the inner wall of the energy storage tank 3 to cooperate with the cleaning of the energy storage tank 3, reducing the influence of the resistance when the cleaning plate 50 moves.

[0036] The limiting member 53 includes a trapezoidal block 57 located on the inner wall of the moving groove 52. A first limiting block 58 is fixedly connected to the outer side of the trapezoidal block 57. A first limiting groove 59 capable of slidingly connecting with the first limiting block 58 is provided on the inner wall of the energy storage box 3. One end of the first limiting block 58 is fixedly connected to a first return spring 5A, and one end of the first return spring 5A is fixedly connected to the inner wall of the energy storage box 3. When the limiting member 53 releases the limitation on the cleaning plate 50, the moving plate 55 moves along the moving groove 52 to the position of the trapezoidal block 57. The moving plate 55 presses the hypotenuse of the trapezoidal block 57 to push the first limiting block 58 to slide along the inner wall of the first limiting groove 59, and the trapezoidal block 57 presses the first return spring 5A. After the connecting member 56 switches to connect the cleaning plate 50, the reciprocating lead screw 54 drives the moving plate 55 to move outwards. The moving plate 55 drives the cleaning plate 50 connected thereto to slide along the inner wall of the moving groove 52. The remaining cleaning plates 50 are reset by the compressed first return spring 5A after the moving plate 55 leaves, driving the trapezoidal block 57 to reset. The trapezoidal block 57 drives the first limiting block 58 to slide along the inner wall of the first limiting groove 59, so that the trapezoidal block 57 limits the remaining cleaning plates 50, and the inclined plate 5S of the remaining cleaning plates 50 can slow down the water flow speed entering the energy storage box 3.

[0037] The connecting member 56 includes pressing blocks 5B fixedly connected to both sides of the moving plate 55. A clamping block 5C is located outside the pressing block 5B. Inclined ends 5T are respectively arranged on the outer sides of the pressing block 5B and the clamping block 5C. A communication groove 5D capable of clamping with the clamping block 5C is formed in the inner wall of the pressing block 5B. A switching member 5E capable of alternately clamping the clamping blocks 5C on both sides of the moving plate 55 with the communication groove 5D is provided on the inner wall of the communication groove 5D. The clamping block 5C is slidably connected to the inner wall of the cleaning plate 50. Second limiting blocks 5F are respectively fixedly connected to both sides of the clamping block 5C. Second limiting grooves 5G capable of slidingly connecting with the second limiting blocks 5F are provided on the inner wall of the cleaning plate 50. One end of the second limiting block 5F is fixedly connected to a second return spring 5H, and one end of the second return spring 5H is fixedly connected to the inner wall of the cleaning plate 50. When the connecting member 56 replaces the connection between the moving plate 55 and different cleaning plates 50, the moving plate 55 moves to drive the inclined end 5T of the pressing block 5B to press the inclined end 5T of the clamping block 5C, so that the clamping block 5C is slidably connected to the inner wall of the cleaning plate 50. The clamping block 5C drives the second limiting block 5F to slide along the inner wall of the second limiting groove 5G, and the clamping block 5C presses the second return spring 5H. After the communication groove 5D moves to the position corresponding to the clamping block 5C, the compressed second return spring 5H pushes the clamping block 5C out of the inner wall of the cleaning plate 50 and inserts it into the communication groove 5D to cooperate with the clamping of the cleaning plate 50 and the moving plate 55. At the same time, the impact force of the second return spring 5H pushing the clamping block 5C drives the switching member 5E to work, and the switching member 5E releases the connection between the cleaning plate 50 at the other end of the moving plate 55 and the moving plate 55, thus completing the connection between the moving plate 55 and different cleaning plates 50.

[0038] The switching member 5E includes a push rod 5J slidably connected to the inner wall of the communication groove 5D. A slider 5K is fixedly connected to the outside of the push rod 5J. A sliding groove 5L capable of slidably connecting with the slider 5K is provided on the inner wall of the communication groove 5D. A positioning block 5M is slidably connected to the inner wall of the sliding groove 5L. The shape of the positioning block 5M is hemispherical. On both sides of one end of the positioning block 5M, a third limiting block 5N is fixedly connected respectively. A third limiting groove 5P capable of slidably connecting with the third limiting block 5N is provided on the inner wall of the moving plate 55. One end of the third limiting block 5N is fixedly connected to a third return spring 5Q. One end of the third return spring 5Q is fixedly connected to the inner wall of the cleaning plate 50. When the switching member 5E works, the compressed second return spring 5H pushes the clamping block 5C to insert into the inner wall of the communication groove 5D. The inserted clamping block 5C impacts the push rod 5J, causing the push rod 5J to slide along the inner wall of the communication groove 5D so as to squeeze the clamping block 5C at the other end of the communication groove 5D, making the clamping block 5C at the other end slide out of the inner wall of the communication groove 5D and squeeze the second return spring 5H at the other end. Since the movement of the push rod 5J drives the third limiting block 5N to squeeze the positioning block 5M, the positioning block 5M drives the third limiting block 5N to slide along the inner wall of the third limiting groove 5P, and the positioning block 5M squeezes the third return spring 5Q. When the limiting block slides past the positioning block 5M, the compressed third return spring 5Q pushes the positioning block 5M to reset. The reset positioning block 5M can position the push rod 5J to prevent the compressed second return spring 5H at the other end from pushing the clamping block 5C to insert into the inner wall of the communication groove 5D.

[0039] Embodiment 2

[0040] As Figure 11 , in the second embodiment, other structures remain unchanged. The difference from the first embodiment is that multiple energy storage tanks 3 are provided. The multiple energy storage tanks 3 are connected in series with the main body 1 of the flow stabilization compensator. Users can increase the number of energy storage tanks 3 according to the amount of instantaneous water consumption, so as to prevent the water flow inside the main body 1 of the flow stabilization compensator from running out and causing the equipment to stop supplying water.

[0041] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A box-type non-negative pressure water supply equipment with self-cleaning function, including a steady flow compensator body (1), characterized in that: One end of the steady flow compensator body (1) is provided with a connecting pipe (2). One end of the connecting pipe (2) is provided with an energy storage tank (3). A conversion mechanism (4) capable of slowing down the water flow speed in the connecting pipe (2) is provided at one end of the connecting pipe (2) close to the energy storage tank (3). A cleaning mechanism (5) capable of scraping the inner wall of the energy storage tank (3) is provided on the inner wall of the energy storage tank (3). The cleaning mechanism (5) is connected to the conversion mechanism (4). The cleaning mechanism (5) includes a plurality of cleaning plates (50) arranged on the inner wall of the energy storage tank (3). Moving blocks (51) are respectively arranged on both sides of the cleaning plate (50). A moving groove (52) capable of slidingly connecting with the moving block (51) is provided on the inner wall of the energy storage tank (3). A limiting member (53) capable of limiting the cleaning plate (50) is provided on the inner wall of the moving groove (52). A reciprocating lead screw (54) is provided on the inner wall of the energy storage tank (3). One end of the reciprocating lead screw (54) is connected to the helical gear two (42). A moving plate (55) is arranged on the outer side of the reciprocating lead screw (54). The moving plate (55) is slidably connected to the inner wall of the moving groove (52). A connecting member (56) capable of alternately connecting with a plurality of cleaning plates (50) is arranged on the outer side of the moving plate (55). The connecting member (56) is connected to the cleaning plate (50). The connecting member (56) includes pressing blocks (5B) arranged on both sides of the moving plate (55). A clamping block (5C) is arranged on the outer side of the pressing block (5B). A communicating groove (5D) capable of clamping with the clamping block (5C) is arranged on the inner wall of the pressing block (5B). A switching member (5E) capable of alternately clamping the clamping blocks (5C) on both sides of the moving plate (55) with the communicating groove (5D) is arranged on the inner wall of the communicating groove (5D). The clamping block (5C) is slidably connected to the inner wall of the cleaning plate (50). Limiting blocks two (5F) are respectively arranged on both sides of the clamping block (5C). A limiting groove two (5G) capable of slidingly connecting with the limiting block two (5F) is arranged on the inner wall of the cleaning plate (50). One end of the limiting block two (5F) is provided with a return spring two (5H). One end of the return spring two (5H) is connected to the inner wall of the cleaning plate (50). The switching member (5E) includes a push rod (5J) arranged on the inner wall of the communicating groove (5D). A slider (5K) is arranged on the outer side of the push rod (5J). A sliding groove (5L) capable of slidingly connecting with the slider (5K) is arranged on the inner wall of the communicating groove (5D). A positioning block (5M) is arranged on the inner wall of the sliding groove (5L). Limiting blocks three (5N) are respectively arranged on both sides of one end of the positioning block (5M). A limiting groove three (5P) capable of slidingly connecting with the limiting block three (5N) is arranged on the inner wall of the moving plate (55). One end of the limiting block three (5N) is provided with a return spring three (5Q). One end of the return spring three (5Q) is connected to the inner wall of the cleaning plate (50).

2. The box-type non-negative pressure water supply equipment with a self-cleaning function according to claim 1, characterized in that: The conversion mechanism (4) includes an impeller (40) arranged on the inner wall of one end of the connecting pipe (2) close to the energy storage tank (3). Both ends of the impeller (40) are connected to the inner wall of the connecting pipe (2). One end of the impeller (40) penetrates through the inner wall of the connecting pipe (2) and is provided with a first helical gear (41). A second helical gear (42) is arranged outside the first helical gear (41). A fixed box (43) is arranged outside the second helical gear (42). One end of the second helical gear (42) is provided with a first transmission gear (44). A transmission chain (45) is arranged outside the first transmission gear (44). One end of the transmission chain (45) is provided with a second transmission gear (46). The second transmission gear (46) is connected to the cleaning mechanism (5).

3. The box-type non-negative pressure water supply equipment with self-cleaning function according to claim 1, characterized in that: The limiting member (53) includes a trapezoidal block (57) arranged on the inner wall of the moving groove (52). A first limiting block (58) is arranged outside the trapezoidal block (57). A first limiting groove (59) capable of slidingly connecting with the first limiting block (58) is arranged on the inner wall of the energy storage tank (3). One end of the first limiting block (58) is provided with a first return spring (5A). One end of the first return spring (5A) is connected to the inner wall of the energy storage tank (3).

4. A box-type non-negative pressure water supply device with a self-cleaning function according to claim 1, characterized in that: A semi-circular ring plate (5R) is arranged outside the cleaning plate (50). A plurality of inclined plates (5S) are arranged on the inner wall of the semi-circular ring plate (5R).

5. The box-type non-negative pressure water supply equipment with self-cleaning function according to claim 4, characterized in that: The inclined plates (5S) on the inner walls of the plurality of cleaning plates (50) are arranged staggeredly.

6. The box-type non-negative pressure water supply equipment with self-cleaning function according to claim 1, characterized in that: Inclined ends (5T) are respectively arranged outside the extrusion block (5B) and the clamping block (5C).

7. A box-type non-negative pressure water supply device with a self-cleaning function according to claim 1, characterized in that: The positioning block (5M) is hemispherical in shape.

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