One-way filtering bottom valve of salt chlorine machine

Abstract

The utility model relates to the technical field of salt chlorine machine equipment, in particular to a one-way filtering bottom valve of a salt chlorine machine, which comprises a liquid inlet and a liquid outlet, and further comprises a liquid return cavity communicated with the liquid outlet; an access port is formed in one end of the elastic body, a crack is formed in the end face of the other end of the elastic body, and the crack extends in the elastic body and is communicated with the access port; the access port is communicated with the liquid inlet; the access port and the liquid return cavity are communicated with each other and isolated from each other through opening and closing of the crack; the elastic body is arranged in the liquid return cavity, and a certain space is reserved between the elastic body and the inner wall of the liquid return cavity so that the elastic body can be extruded through liquid pressure in the liquid return cavity to close the crack. According to the one-way filtering bottom valve of the salt chlorine machine, liquid backflow can be avoided in an acid solution conveying channel of the salt chlorine machine when a pump body is in a non-working state, and the backflow liquid is prevented from polluting an acid solution stored in a container.

Description

Technical Field

[0001] The utility model relates to the technical field of salt chlorine machine equipment, in particular to a one-way filtering bottom valve of a salt chlorine machine. Background Art

[0002] A salt chlorine machine is a disinfection device that uses salt to make chlorine. It can solve the problems of strong odor and dust when using chlorine-containing disinfectants. Its working principle is to electrolyze water with salt added to make sodium chloride in the water produce chlorine gas, and the chlorine gas is dissolved in water to produce sodium chlorate, that is, the final disinfection is done by sodium chlorate. Therefore, existing salt chlorine machines often need to be used in conjunction with a certain amount of acidic solution to adjust the pH value of the swimming pool water in real time. However, due to the different storage environments of acidic solutions, it is inevitable that a certain amount of impurities will be mixed in the solution. Therefore, when using a pump body to extract the acidic solution in the container, it is necessary to first filter out the impurities at the suction end. The pump body responsible for extracting the acidic solution in salt chlorination is generally a peristaltic pump. The peristaltic pump is an intermittently working liquid pump. When the peristaltic pump is in a non-working state, it is necessary to prevent the liquid that has been pumped from flowing back to prevent contamination of the acidic solution stored in the container. Utility Model Content

[0003] In order to solve the technical problems existing in the prior art, the utility model provides a one-way filtering bottom valve of a salt chlorine machine, which can avoid liquid reflux in the acid solution delivery channel of the salt chlorine machine when the pump body is in a non-working state, and prevent the refluxed liquid from contaminating the acid solution stored in the container.

[0004] The utility model discloses a one-way filtering bottom valve of a salt chlorine machine, comprising a liquid inlet and a liquid outlet, and also comprising:

[0005] A liquid return chamber, the liquid return chamber being connected to the liquid outlet;

[0006] An elastic body, wherein one end of the elastic body is provided with an access port, and an end surface of the other end is provided with a slit, wherein the slit extends inside the elastic body and is connected to the access port;

[0007] in:

[0008] The access port is connected to the liquid inlet;

[0009] The access port and the liquid return chamber are respectively connected to and isolated from each other through the opening and closing of the slit;

[0010] The elastic body is arranged in the liquid return chamber and is spaced a certain distance from the inner wall of the liquid return chamber so that the elastic body is squeezed by the liquid pressure in the liquid return chamber to close the clamping gap.

[0011] According to the utility model, a one-way filtering bottom valve of a salt chlorine machine:

[0012] The elastic body comprises a flat section and a widened tube that are butted against each other;

[0013] The access port is formed on the widening tube;

[0014] The slit passes through the interior of the flat section and one end extends to the end surface of the flat section, and the other end expands and butts to the interior of the widening tube.

[0015] According to the one-way filtering bottom valve of a salt chlorine machine of the utility model, the inner wall of the clamping gap and the inner wall of the widening pipe transition to each other in an arc shape.

[0016] According to the utility model, a one-way filtering bottom valve of a salt chlorine machine also includes a filtering base, and the liquid inlet is arranged on the filtering base;

[0017] The filter base is provided with a filter screen covering the liquid inlet.

[0018] According to the utility model, a one-way filtering bottom valve of a salt chlorine machine is provided on the filtering base, and a plurality of base feet are arranged, each of the base feet surrounds the filtering net and protrudes to the outside of the filtering base along the thickness direction of the filtering net.

[0019] According to the utility model, a one-way filtering bottom valve of a salt chlorine machine also includes a pipeline joint and a connecting seat connected to each other, and the liquid return cavity is formed in the pipeline joint;

[0020] The end of the elastic body is integrally formed with a sealing ring surrounding the access port;

[0021] Wherein, the sealing ring is sealingly squeezed between the pipe joint and the connecting seat.

[0022] According to the utility model, a one-way filtering bottom valve of a salt chlorine machine, the pipeline joint includes a section of external threaded pipe, the end surface of the external threaded pipe is provided with a mounting groove, and the sealing ring is sleeved in the mounting groove;

[0023] The connecting seat comprises a section of internally threaded tube, and a radially extending extrusion surface is formed inside the internally threaded tube;

[0024] Wherein, after the externally threaded tube is inserted into the internally threaded tube and meshed and locked with the internally threaded tube, the two opposite sides of the sealing ring are respectively squeezed by the groove bottom plane of the installation groove and the squeezing surface.

[0025] According to the one-way filtering bottom valve of a salt chlorine machine of the utility model, the outer wall of the externally threaded pipe is formed with a plurality of clamping surfaces distributed circumferentially along the axis of the externally threaded pipe.

[0026] According to the one-way filtering bottom valve of a salt chlorine machine of the utility model, an intermediate channel is formed inside the connecting seat;

[0027] The two ends of the intermediate channel are connected to the liquid inlet and the access port respectively.

[0028] According to the utility model, a one-way filtering bottom valve of a salt chlorine machine, the pipeline joint also includes an output pipe extending outward, one end of the output pipe is provided with the liquid outlet, and the other end is butt-connected to the liquid return chamber.

[0029] The utility model discloses a one-way filtering bottom valve of a salt chlorine machine. A liquid return chamber and an elastic body are additionally arranged inside the filtering bottom valve of the salt chlorine machine. The liquid return chamber is connected to the liquid outlet of the filtering bottom valve. One end of the elastic body is provided with an access port, and the end surface of the other end is provided with a slit. In addition, the slit is also extended inside the elastic body and connected to the access port. Therefore, when the pump body of the salt chlorine machine extracts the acid solution in the container, the acid solution can enter the access port through the liquid inlet of the filtering bottom valve. At the same time, since the access port and the liquid return chamber are respectively connected and mutually closed through the opening and closing of the slit, Isolation, that is, when the slit is opened, the access port and the liquid return chamber are interconnected, and the solution in the filter bottom valve can be circulated by controlling the opening of the slit. When the pump body extracts the acidic solution in the container into the access port of the elastomer through the pump pressure, the pump pressure will be transmitted to the inside of the elastomer through the solution. Since the elastomer has the characteristic of deformation under force, the solution entering the inside of the elastomer will open the slit from the inside. After the slit is opened, the acidic solution can continue to flow forward through the slit and enter the liquid return chamber, and finally reach the liquid outlet of the filter bottom valve and be smoothly output to the outside. On the other hand, the access port and the liquid return chamber are respectively connected and isolated from each other through the opening and closing of the slit, that is, when the slit is closed, the access port and the liquid return chamber are isolated from each other, and the solution in the filter bottom valve can be intercepted by controlling the closing of the slit. Furthermore, since the elastic body is arranged in the liquid return chamber and is spaced a certain distance from the inner wall of the liquid return chamber, the structure can realize the slit closing by squeezing the elastic body by the liquid pressure in the liquid return chamber. Therefore, when the pump body of the salt chlorine machine completes the extraction of a certain amount of acid solution and switches to the non-working state, the internal pressure generated by the pump body on the slit also increases with the pressure. If the filter bottom valve disappears, at this time, if liquid reflux occurs inside the filter bottom valve, the refluxed liquid will enter the liquid return chamber. At this time, since the elastic body is in the liquid return chamber and is spaced a certain distance from the inner wall of the liquid return chamber, and since the elastic body has the characteristic of being deformed under pressure, the liquid pressure generated in the liquid return chamber will squeeze the elastic body from the outside, forcing the elastic body to be deformed under pressure and clamp the internal gap, so that the gap remains in a closed state, and the refluxed liquid cannot enter the gap, preventing the extracted liquid from flowing back into the container storing the acid solution, effectively preventing the refluxed liquid from contaminating the acid solution stored in the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a three-dimensional diagram of the utility model;

[0032] Figure 2 It is a three-dimensional diagram of the filter base of the utility model;

[0033] Figure 3 It is the internal structure diagram of the utility model;

[0034] Figure 4 It is the internal structure diagram of the utility model.

[0035] Reference numerals:

[0036] 1. Liquid inlet;

[0037] 2. Liquid outlet;

[0038] 3. Liquid return chamber;

[0039] 4. elastic body, 41. access port, 42. gap, 43. flat section, 44. widening tube, 45. sealing ring;

[0040] 5. filter base, 51. filter screen, 52. base;

[0041] 6. Pipe joint, 61. External threaded pipe, 62. Mounting groove, 63. Clamping surface, 64. Output pipe;

[0042] 7. Connecting seat, 71. Internally threaded tube, 72. Extrusion surface, 73. Middle channel;

[0043] 8. Fix the nut. DETAILED DESCRIPTION

[0044] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and cannot be understood as limitations on the utility model. In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the utility model.

[0045] like Figures 1 to 3 As shown, a one-way filter bottom valve of a salt chlorine machine of this embodiment comprises a filter base 5, a connecting seat 7, a pipe joint 6 and a fixing nut 8. The filter base 5, the connecting seat 7, the pipe joint 6 and the fixing nut 8 are fixedly connected to each other in sequence, and a liquid inlet 1 is provided on the filter base 5, and a liquid outlet 2 is provided on the pipe joint 6. In addition, a liquid return chamber 3 and an elastic body 4 are additionally provided inside the filter bottom valve. The liquid return chamber 3 is formed in the pipe joint 6 and is connected to the liquid outlet 2. An access port 41 is provided at one end of the elastic body 4, and a slit 42 is provided on the end face of the other end. The slit 42 extends inside the elastic body 4 and is connected to the access port 41. More specifically, the access port 41 is connected to the liquid inlet 1, and the access port 41 and the liquid return chamber 3 are respectively connected to and isolated from each other by the opening and closing of the slit 42. The elastic body 4 is provided in the liquid return chamber 3 and is spaced a certain distance from the inner wall of the liquid return chamber 3, so as to utilize the liquid pressure in the liquid return chamber 3 to squeeze the elastic body 4 to close the slit 42.

[0046] Based on the above structure, it can be understood that in this embodiment, a liquid return chamber 3 and an elastic body 4 are additionally provided inside the filter bottom valve of the salt chlorine machine. The liquid return chamber 3 is connected to the liquid outlet 2 of the filter bottom valve, and one end of the elastic body 4 is provided with an access port 41, and the end surface of the other end is provided with a slit 42. In addition, the slit 42 also extends inside the elastic body 4 and is connected to the access port 41. Therefore, when the pump body of the salt chlorine machine extracts the acid solution in the container, the acid solution can enter the access port 41 through the liquid inlet 1 of the filter bottom valve. At the same time, since the access port 41 and the liquid return chamber 3 are respectively connected and isolated from each other through the opening and closing of the slit 42, That is to say, when the slit 42 is opened, the inlet 41 and the liquid return chamber 3 are interconnected, and the solution in the filter bottom valve can be circulated by controlling the opening of the slit 42. When the pump body draws the acidic solution in the container into the inlet 41 of the elastomer 4 through the pump pressure, the pump pressure will be transmitted to the inside of the elastomer 4 through the solution. Since the elastomer 4 has the characteristic of deformation under force, the solution entering the elastomer 4 will open the slit 42 from the inside. After the slit 42 is opened, the acidic solution can continue to flow forward through the slit 42 and enter the liquid return chamber 3, and finally reach the liquid outlet 2 of the filter bottom valve and be smoothly output to the outside. On the other hand, the access port 41 and the liquid return chamber 3 are connected and isolated from each other respectively through the opening and closing of the slit 42. That is to say, when the slit 42 is closed, the access port 41 and the liquid return chamber 3 are isolated from each other. By controlling the closing of the slit 42, the solution in the filter bottom valve can be intercepted. Furthermore, since the elastic body 4 is arranged in the liquid return chamber 3 and is spaced a certain distance from the inner wall of the liquid return chamber 3, the structure can realize the slit 42 closed by squeezing the elastic body 4 by the liquid pressure in the liquid return chamber 3. Therefore, when the pump body of the salt chlorine machine completes the extraction of a certain amount of acid solution and switches to the non-working state, the internal pressure generated by the pump body on the slit 42 is also increased. The filter element 4 disappears. At this time, if liquid reflux occurs inside the filter bottom valve, the refluxed liquid will enter the liquid return chamber 3. At this time, since the elastic body 4 is spaced a certain distance from the inner wall of the liquid return chamber 3 in the liquid return chamber 3, and since the elastic body 4 has the characteristic of being deformed under pressure, the liquid pressure generated in the liquid return chamber 3 will squeeze the elastic body 4 from the outside, forcing the elastic body 4 to be deformed under pressure and clamp the internal slit 42, so that the slit 42 remains in a closed state, and the refluxed liquid cannot enter the slit 42, thereby preventing the extracted liquid from flowing back into the container storing the acidic solution, and effectively preventing the refluxed liquid from contaminating the acidic solution stored in the container.

[0047] In addition, a filter screen 51 is provided on the filter base 5 , and the filter screen 51 covers the liquid inlet 1 to achieve the effect of filtering impurities.

[0048] The following is an optional specific implementation structure of this embodiment:

[0049] The elastic body 4 includes a flat section 43 and a widening tube 44. The flat section 43 and the widening tube 44 are connected to each other. The access port 41 is set at the port of the widening tube 44. After the slit 42 penetrates the interior of the flat section 43, one end of the slit 42 extends to the end face of the flat section 43, and the other end expands and connects to the interior of the widening tube 44. It can be understood that the elastic body 4 expands the internal space through the widening tube 44, and the acidic solution output through the pump body can enter the elastic body 4 more easily through the widening tube 44, and then it can be easier to open the slit 42, so that the acidic solution can smoothly continue to flow forward through the slit 42. The flat section 43 of the elastic body 4 is in the liquid return chamber 3, which can be more easily elastically deformed by hydraulic pressure and close the internal slit 42, ensuring that the refluxed liquid cannot enter the elastic body 4 through the slit 42 when entering the liquid return chamber 3, effectively preventing the extracted solution from flowing back to the container storing the acidic solution and causing pollution.

[0050] Regarding the interior of the elastomer 4 , the inner wall of the slit 42 and the inner wall of the widening tube 44 transition to each other in an arc shape, so that the solution can flow more smoothly from the widening tube 44 to the slit 42 and more easily open the slit 42 .

[0051] A plurality of feet 52 are integrally formed on the filter base 5, and each foot 52 is positioned to surround the filter screen 51 and protrude to the outside of the filter base 5 along the thickness direction of the filter screen 51. Therefore, when the filter bottom valve is connected to a container storing an acidic solution through the liquid inlet 1, the feet 52 can maintain a certain gap between the filter screen 51 and the output port of the container, so that the solution can be more easily sucked into the filter bottom valve and impurities can be filtered more effectively.

[0052] In order to achieve the sealing inside the filter bottom valve, combined with Figure 3 and Figure 4 As shown, a sealing ring 45 is integrally formed at the end of the elastomer 4, and the sealing ring 45 surrounds the inlet 41. When the bottom valve is assembled, the sealing ring 45 is sealed and squeezed between the pipe connector 6 and the connecting seat 7, thereby preventing the solution from leaking out through the gap between the pipe connector 6 and the connecting seat 7 during the flow.

[0053] More specifically, a section of externally threaded tube 61 is provided on the pipe joint 6, and a mounting groove 62 is processed on the end face of the externally threaded tube 61. When assembling the bottom valve, the sealing ring 45 is fitted into the mounting groove 62. On the other hand, a section of internally threaded tube 71 is provided on the connecting seat 7. A radially extending extrusion surface 72 is formed inside the internally threaded tube 71. During the assembly of the bottom valve, when the externally threaded tube 61 is inserted into the internally threaded tube 71 and meshed and locked with the internally threaded tube 71, the opposite sides of the sealing ring 45 are also squeezed by the bottom plane of the mounting groove 62 and the extrusion surface 72, respectively. In this way, the mutual locking of the externally threaded tube 61 and the internally threaded tube 71 can be utilized to ensure the sealing connection of the sealing ring 45 between the pipe joint 6 and the connecting seat 7.

[0054] In order to facilitate tightening the external threaded tube 61 into the internal threaded tube 71, a plurality of clamping surfaces 63 are formed on the outer wall of the external threaded tube 61. The clamping surfaces 63 are circumferentially distributed along the axis of the external threaded tube 61. The clamping surfaces 63 can be convenient for clamping with fingers, a wrench or a pliers body, and can clamp the external threaded tube 61 more firmly, making it easier to tighten the external threaded tube 61 and the internal threaded tube 71 when they are engaged with each other.

[0055] In order to ensure that the liquid entering the access port 41 can smoothly pass through the connecting seat 7 and enter the access port 41 of the elastomer 4, an intermediate channel 73 is also integrally formed inside the connecting seat 7, and the two ends of the intermediate channel 73 are respectively connected to the liquid inlet 1 and the access port 41, so that the acidic solution can smoothly enter the access port 41 of the elastomer 4 from the intermediate channel 73.

[0056] In addition, the pipe connector 6 also includes an output pipe 64 extending outward, the liquid outlet 2 is formed at the front end of the output pipe 64, and the rear end of the output pipe 64 is connected to the liquid return chamber 3 to ensure that the acidic solution can be transported to the outside along the output pipe 64 of the pipe connector 6 during the process of the pump body extracting the acidic solution.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A one-way filtering bottom valve for a salt chlorinator, comprising a liquid inlet (1) and a liquid outlet (2), characterized in that: Also includes: A liquid return chamber (3), the liquid return chamber (3) being connected to the liquid outlet (2); An elastic body (4), wherein one end of the elastic body (4) is provided with an access port (41), and the end surface of the other end is provided with a slit (42), wherein the slit (42) extends inside the elastic body (4) and is connected to the access port (41); in: The access port (41) is connected to the liquid inlet (1); The access port (41) and the liquid return chamber (3) are respectively connected to and isolated from each other through the opening and closing of the slit (42); The elastic body (4) is arranged in the liquid return chamber (3) and is spaced a certain distance from the inner wall of the liquid return chamber (3) so that the elastic body (4) is squeezed by the liquid pressure in the liquid return chamber (3) to close the clamping gap (42).

2. The one-way filtering bottom valve of the salt chlorine machine according to claim 1 is characterized in that: The elastic body (4) comprises a flat section (43) and a widening tube (44) that are butted against each other; The access port (41) is formed on the widening tube (44); The slit (42) penetrates the interior of the flat section (43) and one end extends to the end surface of the flat section (43), and the other end expands and butts to the interior of the widening tube (44).

3. The one-way filtering bottom valve of the salt chlorine machine according to claim 2 is characterized in that: The inner wall of the clamping slit (42) and the inner wall of the widening tube (44) transition to each other in an arc shape.

4. The one-way filtering bottom valve of the salt chlorine machine according to claim 1 is characterized in that: It also comprises a filter base (5), wherein the liquid inlet (1) is provided on the filter base (5); The filter base (5) is provided with a filter screen (51) covering the liquid inlet (1).

5. The one-way filtering bottom valve of the salt chlorine machine according to claim 4 is characterized in that: A plurality of base feet (52) are arranged on the filter base (5), and each of the base feet (52) surrounds the filter screen (51) and protrudes to the outside of the filter base (5) along the thickness direction of the filter screen (51).

6. The one-way filtering bottom valve of the salt chlorine machine according to claim 1, characterized in that: It also comprises a pipeline joint (6) and a connection seat (7) which are connected to each other, and the liquid return cavity (3) is formed in the pipeline joint (6); A sealing ring (45) surrounding the access port (41) is integrally formed at the end of the elastic body (4); The sealing ring (45) is sealingly squeezed between the pipe joint (6) and the connecting seat (7).

7. The one-way filtering bottom valve of the salt chlorine machine according to claim 6, characterized in that: The pipe joint (6) comprises a section of externally threaded pipe (61), the end surface of the externally threaded pipe (61) is provided with a mounting groove (62), and the sealing ring (45) is sleeved in the mounting groove (62); The connecting seat (7) comprises a section of internally threaded tube (71), and a radially extending extrusion surface (72) is formed inside the internally threaded tube (71); After the externally threaded tube (61) is inserted into the internally threaded tube (71) and is meshed and locked with the internally threaded tube (71), the opposite sides of the sealing ring (45) are respectively squeezed by the bottom plane of the installation groove (62) and the squeezing surface (72).

8. The one-way filtering bottom valve of the salt chlorine machine according to claim 7, characterized in that: The outer wall of the externally threaded tube (61) is formed with a plurality of clamping surfaces (63) distributed circumferentially along the axis of the externally threaded tube (61).

9. The one-way filtering bottom valve of the salt chlorine machine according to claim 6, characterized in that: An intermediate channel (73) is formed inside the connecting seat (7); The two ends of the intermediate channel (73) are respectively connected to the liquid inlet (1) and the access port (41).

10. The one-way filtering bottom valve of the salt chlorine machine according to claim 6, characterized in that: The pipeline joint (6) further comprises an output pipe (64) extending outwards, one end of the output pipe (64) being provided with the liquid outlet (2), and the other end being butt-jointed and connected to the liquid return chamber (3).

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