Resorption device and water purification equipment

Abstract

The utility model discloses a back suction device and water purification equipment. The resorption device comprises a shell and an elastic isolation piece, the shell is provided with a cavity, the elastic isolation piece is arranged in the cavity and divides the cavity into a first cavity body and a second cavity body, and the elastic isolation piece is used for deforming under the action of external force and restoring to the original state under the action of the elastic force of the elastic isolation piece. The size of the first cavity and the size of the second cavity can be changed; wherein the first cavity and the second cavity are respectively used for communicating different water paths of the water purification equipment; when the elastic separator deforms under the action of external force, the volume of the first cavity becomes smaller. And when the elastic separator recovers to the original state under the action of self elasticity, the volume of the first cavity is increased. The back suction device provided by the utility model is simple in structure, convenient to install and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to a back-suction device and a water purification device. Background Art

[0002] With the improvement of people's demands, reverse osmosis water purifiers are added with a heating function to facilitate the provision of pure water at different water temperatures. In addition, a back-suction device is provided in the water purifier to solve the problem of low temperature of the first cup of water. However, in the related art, the structure of the back-suction device is complex, the installation is cumbersome, and the cost is high. Summary of the Utility Model

[0003] The first object of the utility model is to provide a back-suction device, which aims to solve the technical problem of the complex structure of the existing back-suction device.

[0004] To achieve the above object, the solution provided by the utility model is: a back-suction device applied to a water purification device, comprising:

[0005] A housing having a cavity;

[0006] An elastic isolation member disposed in the cavity and separating the cavity into a first cavity and a second cavity. The elastic isolation member is configured to deform under an external force and return to its original state under its own elastic force, so that the volumes of the first cavity and the second cavity can change.

[0007] Wherein, the first cavity and the second cavity are respectively used to communicate with different water circuits of the water purification device; when the elastic isolation member deforms under an external force, the volume of the first cavity decreases from large to small; when the elastic isolation member returns to its original state under its own elastic force, the volume of the first cavity increases from small to large.

[0008] As an embodiment, the elastic isolation member includes an elastic diaphragm configured to deform under an external force and return to its original state under its own elastic force.

[0009] As an embodiment, the elastic isolation member includes an isolation membrane and an elastic member;

[0010] The elastic member is connected between the isolation membrane and the housing and is located in the first cavity or the second cavity; the isolation membrane is configured to deform under an external force and return to its original state under the action of the elastic member.

[0011] As an embodiment, the first cavity and the second cavity are arranged along the axial direction of the housing.

[0012] As an implementation manner, when the elastic isolation member is in the original state, the volume of the first cavity is greater than or equal to the volume of the second cavity.

[0013] As an implementation manner, the housing is provided with a through hole, and both the first cavity and the second cavity communicate with different water paths of the water purification device through the through hole.

[0014] As an implementation manner, the housing is provided with at least two through holes, and both the first cavity and the second cavity are communicated with at least one through hole.

[0015] As an implementation manner, the housing is provided with at least three through holes, and one of the first cavity and the second cavity is communicated with at least one through hole and the other is communicated with at least two through holes.

[0016] As an implementation manner, the housing is provided with at least four through holes, and both the first cavity and the second cavity are communicated with at least two through holes.

[0017] The second object of the present invention is to provide a water purification device including the above-mentioned back suction device.

[0018] The back suction device and the water purification device provided by the present invention divide the cavity into a first cavity and a second cavity by setting an elastic isolation member, and by setting that the elastic isolation member deforms under an external force and returns to its original state under its own elastic force, so that the volume sizes of the first cavity and the second cavity can change. Thereby, the first cavity and the second cavity are communicated with different water paths of the water purification device, and through the change of the pressure in the second cavity, the water in the water path downstream of the first cavity can be sucked back into the first cavity. The back suction device has a simple structure, is convenient to install, and has a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 is a schematic structural diagram of the back suction device provided in Embodiment 1 of the present invention;

[0021] Figure 2 is Figure 1 the right view of the back suction device shown;

[0022] Figure 3 is Figure 2Cross-sectional view along line A-A;

[0023] Figure 4 It is a schematic structural diagram of a suction-back device provided in the second embodiment of the present utility model;

[0024] Figure 5 Is Figure 4 The right view of the suction-back device shown;

[0025] Figure 6 Is Figure 5 Cross-sectional view along line B-B;

[0026] Figure 7 It is a cross-sectional view of another suction-back device provided in the second embodiment of the present utility model;

[0027] Figure 8 It is a schematic structural diagram of a suction-back device provided in the third embodiment of the present utility model;

[0028] Figure 9 Is Figure 8 The right view of the suction-back device shown;

[0029] Figure 10 Is Figure 9 Cross-sectional view along line C-C;

[0030] Figure 11 It is a cross-sectional view of a suction-back device provided in the fourth embodiment of the present utility model;

[0031] Figure 12 It is a cross-sectional view of another suction-back device provided in the fourth embodiment of the present utility model.

[0032] Explanation of the reference numerals in the drawings:

[0033] 100, suction-back device; 10, housing; 11, cavity; 111, first cavity; 112, second cavity; 12, through hole; 20, elastic separator; 21, elastic diaphragm; 22, isolation film; 23, elastic member; 30, connecting pipe.

[0034] The realization of the object, functional features and advantages of the present utility model will be further described in conjunction with the embodiments with reference to the accompanying drawings. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0037] It should also be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0038] In addition, the descriptions involving "first", "second", etc. in the present utility model are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0039] To solve the problem of the low temperature of the first cup of water in the water purification device, a back-suction device is usually provided to suck back the residual cold water in the drainage terminal pipeline of the water purification device for heating treatment. In the related art, the structure of the back-suction device is relatively complex, not only with high cost, but also with cumbersome installation and low assembly efficiency.

[0040] In view of this, the present utility model provides a novel back-suction device and a water purification device. Among them, the water purification device includes a back-suction device.

[0041] Embodiment 1:

[0042] As Figures 1 to 3 shown, the back-suction device 100 provided in the embodiment of the present utility model includes a housing 10 and an elastic isolation member 20; the housing 10 has a cavity 11, and the elastic isolation member 20 is disposed in the cavity 11 and divides the cavity 11 into a first cavity 111 and a second cavity 112; the elastic isolation member 20 is configured to deform under an external force and return to its original state under its own elastic force, so that the volume sizes of the first cavity 111 and the second cavity 112 can change.

[0043] Since the volume of the cavity 11 is fixed, that is, the sum of the volumes of the first cavity 111 and the second cavity 112 is fixed, during the deformation or restoration of the elastic spacer 20 to its original state, the volumes of the first cavity 111 and the second cavity 112 continuously change. For example, when the volume of the first cavity 111 increases, the volume of the second cavity 112 decreases; when the volume of the first cavity 111 decreases, the volume of the second cavity 112 increases.

[0044] As an implementation manner, the first cavity 111 and the second cavity 112 are respectively used to communicate with different water paths of the water purification device; when the elastic spacer 20 deforms under an external force, the volume of the first cavity 111 changes from large to small, where the external force includes but is not limited to pressure; when the elastic spacer 20 restores to its original state under its own elastic force, the volume of the first cavity 111 changes from small to large.

[0045] During use, the first cavity 111 is communicated with the pure water discharge water path of the water purification device. The pure water discharge water path is located at the drainage terminal of the water purification device. The first cavity 111 is communicated with the atmosphere and the pressure is zero. When the elastic spacer 20 deforms under an external force, the volume of the first cavity 111 changes from large to small, and the water in the first cavity 111 is squeezed out, discharged from the first cavity 111, and flows to the downstream pure water discharge water path; when the elastic spacer 20 restores to its original state under its own elastic force, the volume of the first cavity 111 changes from small to large, so that the water in the downstream pure water discharge water path is sucked back into the first cavity 111, that is, the water in the drainage terminal pipeline of the water purification device is sucked back.

[0046] The second cavity 112 is communicated with the waste water discharge water path of the water purification device and is arranged upstream of the waste water valve. When the water purification device is turned on, the pressure at the water inlet end of the water purification device is much greater than that at the drainage terminal, that is, the pressure in the second cavity 112 is much greater than the pressure in the first cavity 111, so that the elastic spacer 20 deforms under the action of the pressure and is pushed towards the side close to the first cavity 111, and further makes the volume of the first cavity 111 change from large to small; when the water purification device is turned off, if the waste water valve is opened, the pressure in the second cavity 112 is gradually discharged as the waste water is discharged. If the waste water valve is closed, since the waste water valve has a normally open structure similar to a small hole and this normally open structure is always in the open state, the pressure in the second cavity 112 is slowly discharged by the normally open structure of the waste water valve, and the pressure in the second cavity 112 gradually decreases. The elastic spacer 20 gradually restores to its original state under its own elastic force, so that the volume of the first cavity 111 changes from small to large.

[0047] With the above technical solution, the cavity 11 is divided into a first cavity 111 and a second cavity 112 by arranging the elastic isolation member 20, and the elastic isolation member 20 is deformed under an external force and restored to its original state under its own elastic force, so that the volume sizes of the first cavity 111 and the second cavity 112 can change. Thus, the first cavity 111 and the second cavity 112 are communicated with different water paths of the water purification device, and through the change of the pressure in the second cavity 112, the water in the downstream water path of the first cavity 111 can be sucked back into the first cavity 111. The back-suction device 100 has a simple structure, is convenient to install, and has a low cost.

[0048] As an implementation manner, referring to Figure 1 and Figure 3 shown, the elastic isolation member 20 includes an elastic diaphragm 21, and the elastic diaphragm 21 is used to deform under an external force and restore to its original state under its own elastic force. In this way, the structure of the elastic isolation member 20 is simple, which is beneficial to the assembly of the back-suction device 100. Among them, the elastic diaphragm 21 is used to deform under pressure.

[0049] As an implementation manner, the first cavity 111 and the second cavity 112 are arranged along the axial direction of the housing 10. Of course, in specific applications, as an alternative implementation solution, the arrangement manner of the first cavity 111 and the second cavity 112 is not limited to this. For example, the first cavity 111 and the second cavity 112 are arranged along the radial direction of the housing 10, or the arrangement direction of the first cavity 111 and the second cavity 112 forms an angle of 20°, 50°, or 80° with the axial direction of the housing 10, etc.

[0050] As an implementation manner, when the elastic isolation member 20 is in its original state, the volume of the first cavity 111 is greater than or equal to the volume of the second cavity 112. That is to say, when the elastic isolation member 20 does not deform, the volume of the first cavity 111 is greater than or equal to the volume of the second cavity 112. Setting the volume of the first cavity 111 to be large enough is beneficial to the water to flow back into the first cavity 111. It can be understood that in other embodiments, it is also possible that the volume of the first cavity 111 is smaller than the volume of the second cavity 112.

[0051] As an implementation manner, the housing 10 is provided with a through hole 12, and both the first cavity 111 and the second cavity 112 are communicated with different water paths of the water purification device through the through hole 12. In this way, the first cavity 111 and the second cavity 112 are communicated with different water paths of the water purification device. Exemplarily, the water delivery pipe of the water purification device is inserted into the through hole 12, so that the first cavity 111 and the second cavity 112 are communicated with different water paths of the water purification device.

[0052] As an implementation manner, referring to Figure 1 and Figure 3As shown, the back-suction device 100 further includes a connecting pipe 30 disposed at the through-hole 12. The water delivery pipe of the water purification device is connected to the connecting pipe 30 so that the first cavity 111 and the second cavity 112 communicate with different water circuits of the water purification device.

[0053] As an implementation manner, the housing 10 is provided with at least two through-holes 12, and at least one through-hole 12 is communicated with both the first cavity 111 and the second cavity 112. For example, referring to Figure 3 As shown, the housing 10 is provided with two through-holes 12. One through-hole 12 communicates with the first cavity 111, and the other through-hole 12 communicates with the second cavity 112. In this way, both the first cavity 111 and the second cavity 112 are used as branches of the water purification device and communicate with different water circuits of the water purification device.

[0054] Furthermore, an embodiment of the present invention further provides a water purification device including the above-mentioned back-suction device 100. By adopting the above-mentioned back-suction device 100, the assembly steps of the water purification device can be simplified, the assembly efficiency can be improved, and the cost of the water purification device can be reduced.

[0055] As an implementation manner, the water purification device further includes a heating device. The first cavity 111 communicates with the heating device and is located upstream of the heating device. In this way, when the first cavity 111 back-sucks the water downstream of it, the water downstream of the heating device (such as the water remaining in the pure water discharge water circuit at the drainage terminal of the water purification device) flows back into the heating device, thereby solving the problem of low temperature of the first glass of water in the water purification device.

[0056] As an implementation manner, the water purification device further includes a wastewater valve disposed on the wastewater discharge water circuit for controlling the discharge of wastewater. The second cavity 112 is disposed upstream of the wastewater valve. When the water purification device is closed, the pressure in the second cavity 112 can be reduced through the wastewater valve, so that the volume of the second cavity 112 changes from small to large, and then the back-suction of water flow is realized.

[0057] Specifically, the first cavity 111 communicates with the atmosphere and the pressure is zero. When the water purification device is turned on, the pressure at the water inlet end of the water purification device is much greater than that at the drainage terminal, that is, the pressure in the second cavity 112 is much greater than the pressure in the first cavity 111, so that the elastic isolation member 20 deforms under the action of the pressure and is pushed toward the side close to the first cavity 111, and then the volume of the first cavity 111 changes from large to small; when the water purification device is turned off, if the wastewater valve is opened, the pressure in the second cavity 112 is gradually discharged as the wastewater is discharged. If the wastewater valve is closed, since the normally open structure of the wastewater valve is always in the open state, the pressure in the second cavity 112 is slowly discharged by the normally open structure of the wastewater valve, and the pressure in the second cavity 112 gradually decreases. The elastic isolation member 20 gradually returns to its original state under the action of its own elastic force, so that the volume of the first cavity 111 changes from small to large.

[0058] Example Two:

[0059] The difference between the back suction device 100 and the water purification device provided in this embodiment and those in Example One mainly lies in the different numbers of through holes 12, specifically: in Example One, the housing 10 is provided with at least two through holes 12; while in this embodiment, the housing 10 is provided with at least three through holes 12.

[0060] As an implementation manner, at least one through hole 12 communicates with one of the first cavity 111 and the second cavity 112, and at least two through holes 12 communicate with the other one. When at least two through holes 12 communicate with the same cavity, at least one through hole 12 can be used for water flow to enter the cavity, and at least one through hole 12 can be used for water flow to flow out of the cavity. In this way, this cavity can be serially arranged in the water path of the water purification device.

[0061] As an implementation manner, referring to Figures 4 to 7 as shown, the housing 10 is provided with three through holes 12, one of which communicates with one of the first cavity 111 and the second cavity 112, and the other two through holes 12 communicate with the other one of the first cavity 111 and the second cavity 112. Exemplarily, referring to Figure 6 as shown, one of the through holes 12 communicates with the first cavity 111, and the other two through holes 12 communicate with the second cavity 112. In this way, the first cavity 111 is connected as a branch to the water path of the water purification device, and the second cavity 112 is serially arranged in the water path of the water purification device. In another embodiment, referring to Figure 7 as shown, one of the through holes 12 communicates with the second cavity 112, and the other two through holes 12 communicate with the first cavity 111. In this way, the first cavity 111 is serially arranged in the water path of the water purification device, and the second cavity 112 is connected as a branch to the water path of the water purification device.

[0062] Except for the above differences, the back suction device 100 and the water purification device provided in this embodiment can be designed with reference to Example One, and will not be described in detail here.

[0063] Example Three:

[0064] The difference between the back suction device 100 and the water purification device provided in this embodiment and those in Example One mainly lies in the different numbers of through holes 12, specifically: in Example One, the housing 10 is provided with at least two through holes 12; while in this embodiment, the housing 10 is provided with at least four through holes 12.

[0065] As an implementation manner, at least two through holes 12 communicate with both the first cavity 111 and the second cavity 112. With such a setting, both the first cavity 111 and the second cavity 112 are serially arranged in the water path of the water purification device.

[0066] As an implementation manner, referring toFigures 8 to 10 As shown, the housing 10 is provided with four through holes 12, two of which communicate with the first cavity 111 and the other two communicate with the second cavity 112. In a specific application, the two through holes 12 communicating with the first cavity 111 are respectively set as the water inlet hole and the water outlet hole of the first cavity 111, and the two through holes 12 communicating with the second cavity 112 are respectively set as the water inlet hole and the water outlet hole of the second cavity 112. In this way, the first cavity 111 and the second cavity 112 are connected in series in different water circuits of the water purification device. It can be understood that in other embodiments, when the number of through holes 12 is greater than four, the number of through holes 12 communicating with at least one cavity is greater than or equal to three. At this time, at least two of the through holes 12 communicating with the cavity can be set as the water inlet hole or the water outlet hole. For example, if the first cavity 111 communicates with three through holes 12, two of the through holes 12 can be set as the water inlet holes and the other through hole 12 can be set as the outlet hole.

[0067] Except for the above differences, the backwashing device 100 and the water purification device provided in this embodiment can be designed with reference to Embodiment 1, and will not be described in detail here.

[0068] Embodiment 4:

[0069] The main difference between the backwashing device 100 and the water purification device provided in this embodiment and those in Embodiments 1 to 3 lies in the different structures of the elastic isolation member 20. Specifically, in Embodiments 1 to 3, the elastic isolation member 20 includes an elastic diaphragm 21; while in this embodiment, the elastic isolation member 20 includes an isolation membrane 22 and an elastic member 23.

[0070] As an implementation manner, the elastic member 23 is connected between the isolation membrane 22 and the housing 10 and is located in the first cavity 111 or the second cavity 112; the isolation membrane 22 is configured to deform under an external force and return to its original state under the action of the elastic member 23. The elastic force applied by the elastic member 23 to the isolation membrane 22 causes the isolation membrane 22 to return to its original state.

[0071] Exemplarily, referring to Figure 11 As shown, the elastic member 23 is located in the first cavity 111. When the isolation membrane 22 deforms under an external force, the first cavity 111 becomes smaller from larger, and the elastic member 23 is in a compressed state; when the external force gradually decreases, the isolation membrane 22 gradually returns to its original state under the compression force of the elastic member 23. In another embodiment, referring to Figure 12 As shown, the elastic member 23 is located in the second cavity 112. When the isolation membrane 22 deforms under an external force, the first cavity 111 becomes smaller from larger, and the elastic member 23 is in a stretched state; when the external force gradually decreases, the isolation membrane 22 gradually returns to its original state under the tensile force of the elastic member 23.

[0072] As an implementation manner, the elastic member 23 is a spring or an elastic sheet.

[0073] Except for the above differences, the suction device 100 and the water purification device provided in this embodiment can be designed with reference to Embodiments 1 to 3, and no detailed description will be given here.

[0074] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A back-suction device, applied to a water purification device, characterized in that, Comprising: A housing having a cavity; An elastic isolation member disposed within the cavity and partitioning the cavity into a first chamber and a second chamber, the elastic isolation member being configured to deform under an external force and return to its original state under its own elastic force, such that the volumes of the first chamber and the second chamber can change; Wherein, the first chamber and the second chamber are respectively configured to communicate with different water circuits of the water purification device; when the water purification device is turned on, the elastic isolation member deforms under an external force, and the volume of the first chamber decreases from large to small; when the water purification device is turned off, the elastic isolation member returns to its original state under its own elastic force, and the volume of the first chamber increases from small to large.

2. The back suction device according to claim 1, wherein, The elastic isolation member includes an elastic diaphragm configured to deform under an external force and return to its original state under its own elastic force.

3. The back suction device according to claim 1, characterized in that, The elastic isolation member includes an isolation membrane and an elastic member; The elastic member is connected between the isolation membrane and the housing, and is located within the first chamber or the second chamber; the isolation membrane is configured to deform under an external force and return to its original state under the action of the elastic member.

4. The back suction device according to claim 1, characterized in that, The first chamber and the second chamber are arranged axially along the housing.

5. The back suction device according to claim 1, characterized in that, When the elastic isolation member is in its original state, the volume of the first chamber is greater than or equal to the volume of the second chamber.

6. The back suction device according to any one of claims 1 to 5, characterized in that, The housing is provided with through holes, and both the first chamber and the second chamber communicate with different water circuits of the water purification device through the through holes.

7. The back suction device according to claim 6, characterized in that, The housing is provided with at least two of the through holes, and both the first chamber and the second chamber communicate with at least one of the through holes.

8. The suction device according to claim 6, characterized in that, The housing is provided with at least three of the through holes, and one of the first chamber and the second chamber communicates with at least one of the through holes and the other communicates with at least two of the through holes.

9. The back suction device according to claim 6, characterized in that, The housing is provided with at least four of the through holes, and both the first chamber and the second chamber communicate with at least two of the through holes.

10. A water purification device, characterized in that, Comprising the back-suction device according to any one of claims 1 to 9.

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