Flow adjusting device and water purifying equipment

Abstract

The utility model discloses a flow regulating device and water purification equipment, and relates to the technical field of water purification equipment manufacturing, the flow regulating device comprises a shell and a regulating assembly, the shell is provided with a containing cavity and comprises a first channel and a second channel which are communicated with the containing cavity, the first channel is used for being connected with a water source, and the second channel is used for being connected with a water outlet. The second channel is connected with a water inlet of the filter element; the adjusting assembly is connected to the shell and comprises an adjusting rod, and at least part of the adjusting rod is arranged in the containing cavity and can move in the axial direction of the adjusting rod so as to adjust the communication area of the first channel and the containing cavity. The flow adjusting device and the water purifying equipment provided by the technical scheme of the utility model aim at providing a multi-gear adjusting function of water flow and improving user experience.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification equipment manufacturing, and particularly relates to a flow regulating device and a water purification equipment. Background Art

[0002] With the improvement of people's living standards, water purification equipment is increasingly used to filter impurities in water resources. A stop valve is usually arranged between the water purification equipment of the related technology and the water source to control whether the external water source is introduced into the water purification equipment according to the working state of the water purification equipment.

[0003] However, the function of the stop valve in the related technology is relatively single, that is, the stop valve usually only has two states of opening and closing, and cannot adjust the inlet water flow in multiple gears according to the user's demand for the flow rate, which affects the user experience. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a flow regulating device and a water purification equipment, aiming to provide a multi-gear regulating method for the inlet water flow, meet different needs of users, and improve the user experience.

[0005] To achieve the above purpose, the utility model provides a flow regulating device, which includes a housing and a regulating component. The housing has a receiving cavity and includes a first channel and a second channel communicating with the receiving cavity. The first channel is used to connect to the water source, and the second channel is used to connect to the water inlet of the filter element; the regulating component is connected to the housing and includes a regulating rod. At least part of the regulating rod is arranged in the receiving cavity and can move along its own axis to adjust the communication area between the first channel and the receiving cavity.

[0006] In some embodiments, the first channel includes a straight cylinder section communicating with the receiving cavity, and the straight cylinder section is coaxial with the regulating rod; along the direction from the straight cylinder section to the regulating rod, the cross-sectional area of the end of the regulating rod close to the straight cylinder section gradually increases.

[0007] In some embodiments, the shape of the port of the straight cylinder section close to the receiving cavity matches the shape of the end face of the regulating rod close to the straight cylinder section.

[0008] In some embodiments, the housing further includes an installation cavity, and the regulating component further includes a fastener connected to the housing; the regulating rod includes a plurality of buckles arranged at intervals along the axis in sequence, and the plurality of buckles are arranged in the installation cavity and are movably connected to the fastener.

[0009] In some embodiments, the fastener includes a plate body part and a through groove opened on the plate body part. The plate body part is perpendicular to the axis of the regulating rod, and the through groove penetrates through the plate body part along the axis of the regulating rod; the plurality of buckles can pass through the through groove along the axis of the regulating rod with the regulating rod, and after the regulating rod rotates along the axis, the buckles are clamped with the fastener.

[0010] In some embodiments, the thickness of the plate body portion is not greater than the distance between adjacent buckles. After the adjusting rod rotates axially, the plate body portion is clamped between adjacent buckles.

[0011] In some embodiments, the fastener includes a buckle seat. The buckle seat is received in the installation cavity and connected to the housing. The buckle seat includes at least one installation wall, and a clamping block matching the buckle is provided on the installation wall; the adjusting rod can move axially to adjust the positions of the buckles and the clamping blocks, and the adjusting rod can rotate axially to switch the connection and release states of the buckle and the fastening.

[0012] In some embodiments, the adjusting rod further includes a support plate. The support plate is perpendicular to the axial direction of the adjusting rod and is arranged at intervals along the axial direction of the adjusting rod with a plurality of buckles. A return spring is arranged between the buckle seat and the support plate.

[0013] In some embodiments, the housing further includes a third channel for communicating the water outlet of the filter element with the outside.

[0014] The present utility model also provides a water purification device, which includes the flow rate adjusting device provided in any of the foregoing embodiments.

[0015] By arranging at least a part of the adjusting rod in the accommodation cavity and setting that the adjusting rod can move axially along itself, the technical solution of the present utility model enables the adjusting rod to adjust the communication area at the connection between the first channel and the accommodation cavity through its axial movement, thereby controlling the flow rate of the external water source flowing into the accommodation cavity and realizing multi-stage adjustment of the flow rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model 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 utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0017] Figure 1 is a three-dimensional structural schematic diagram of a flow rate adjusting device provided by an embodiment of the present utility model;

[0018] Figure 2 is Figure 1 a three-dimensional structural exploded schematic diagram of the flow rate adjusting device shown;

[0019] Figure 3 is Figure 2 in the flow rate adjusting device shown;

[0020] Figure 4a -c is Figure 1Schematic cross-sectional structure diagrams of the flow regulating device shown in different working states;

[0021] Figure 5 is a schematic three-dimensional structure diagram of the flow regulating device provided by another embodiment of the present utility model;

[0022] Figure 6 is Figure 5 a schematic exploded three-dimensional structure diagram of the flow regulating device shown;

[0023] Figure 7a -c is Figure 5 a schematic cross-sectional structure diagram of the flow regulating device shown in different working states.

[0024] Explanation of reference numerals in the drawings:

[0025] 100, flow regulating device; 10, housing; 11, first channel; 111, straight cylinder section; 12, second channel; 13, installation cavity; 14, third channel; 20, regulating assembly; 21, regulating rod; 211, buckle; 212, body part; 213, support plate; 22, fastener; 221, plate body part; 222, through groove; 223, buckle seat; 2231, installation wall; 2232, base plate; 2233, connecting wall; 224, return spring; 23, seal; 101, accommodating cavity.

[0026] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to 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 of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model.

[0028] 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 and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] 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 may 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 scope of protection required by the present utility model.

[0030] With the improvement of people's living standards, water purification devices are increasingly being applied to filter impurities in water resources. A stop valve is usually provided between a water purification device of the related art and a water source to control whether the external water source is introduced into the water purification device according to the working state of the water purification device.

[0031] However, the function of the stop valve in the related art is relatively single, that is, the stop valve usually only has two states of opening and closing, and cannot adjust the incoming water flow in multiple gears according to the user's demand for flow rate, which affects the user experience.

[0032] Based on this, please refer to Figure 1 to FIG. 4. The present utility model provides a flow rate adjusting device 100. The flow rate adjusting device 100 includes a housing 10 and an adjusting assembly 20. Among them, the housing 10 has a receiving cavity 101 and includes a first channel 11 and a second channel 12 that communicate with the receiving cavity 101. The first channel 11 is used to connect to a water source, and the second channel 12 is used to connect to the water inlet of a filter element; the adjusting assembly 20 is connected to the housing 10 and includes an adjusting rod 21. At least a part of the adjusting rod 21 is disposed in the receiving cavity 101 and can move along its own axial direction to adjust the communication area between the first channel 11 and the receiving cavity 101.

[0033] The flow rate adjusting device 100 is applied to a water purification device to control and adjust the water flow rate flowing into the water purification device.

[0034] The housing 10 is a structural member of the flow rate adjusting device 100, which is used to define the external shape structure of the flow rate adjusting device 100 and connect to the external water source and the filter element, so that the water from the external water source flows into the filter element for filtration after the flow rate is adjusted by the adjusting assembly 20.

[0035] The housing 10 having the receiving cavity 101 means that at least a part of the housing 10 encloses to form a receiving cavity 101 with a certain space. In these embodiments of the present utility model, the function of the receiving cavity 101 is at least to transfer the water flowing in from the water source to the water inlet of the filter element.

[0036] The housing 10 includes a first channel 11 and a second channel 12 that communicate with the accommodation cavity 101. Among them, the first channel 11 and the second channel 12 are the channels in the flow rate adjustment device 100 that connect the accommodation cavity 101 with external components, so as to access the water from the external water source into the accommodation cavity 101 and transfer the water in the accommodation cavity 101 to the filter element for filtration.

[0037] In these embodiments of the present invention, the first channel 11 is a channel for connecting to the water source, and the second channel 12 is a channel for connecting to the water inlet of the filter element.

[0038] The function of the adjustment component 20 is to adjust the size of the port where the first channel 11 communicates with the accommodation cavity 101, thereby achieving the effect of adjusting the inflow rate of the external water source. That is, when the adjustment component 20 makes the port where the first channel 11 communicates with the accommodation cavity 101 smaller, the inflow rate of the external water source can be slowed down, and when the adjustment component 20 makes the port where the first channel 11 communicates with the accommodation cavity 101 larger, the inflow rate of the external water source can be increased.

[0039] The adjustment component 20 is connected to the housing 10. Possibly, at least part of the structure in the adjustment component 20 is connected to the housing 10 to maintain the relative positional relationship between the adjustment component 20 and the housing 10. Exemplarily, in some embodiments, it can be set that at least part of the structure of the adjustment component 20 is fixedly connected to the housing 10 by welding or even integrally formed. In some embodiments, it can also be set that at least part of the structure of the adjustment component 20 is detachably connected to the housing 10 by means of threaded connection, snap connection, etc.

[0040] The adjustment component 20 includes an adjustment rod 21. At least part of the adjustment rod 21 is disposed in the accommodation cavity 101. Possibly, the part of the adjustment component 20 other than the adjustment rod 21 is connected to the housing 10, and at least part of the structure of the adjustment rod 21 can be located in the accommodation cavity 101, so that the adjustment rod 21 can adjust the size of the port where the first channel 11 communicates with the accommodation cavity 101 by adjusting its relative positional relationship with the first channel 11, and realize the adjustment of the inflow rate of the external water source.

[0041] In these embodiments of the present invention, the adjustment rod 21 can move along its own axis, and the purpose is to change the relative positional relationship between the adjustment rod 21 and the first channel 11, and further adjust the size of the port where the first channel 11 communicates with the accommodation cavity 101.

[0042] Exemplarily, in some embodiments, the axial direction of the adjusting rod 21 can be set parallel to the direction in which water flows into the accommodation cavity 101 through the first channel 11, that is, the adjusting rod 21 is arranged along a direction perpendicular to the port where the first channel 11 communicates with the accommodation cavity 101. At this time, the adjusting rod 21 blocks the water flow in the first channel 11 by using its end face. When the adjusting rod 21 moves along its own axial direction, the distance between the adjusting rod 21 and the port of the first channel 11 communicating with the accommodation cavity 101 can be adjusted, thereby realizing the adjustment of the rate of water flowing into the accommodation cavity 101.

[0043] It should be noted that in these embodiments of the present invention, since the adjusting rod 21 blocks the water flow in the first channel 11 by using its end face, in order to enable the adjusting rod 21 to completely block the port where the first channel 11 communicates with the accommodation cavity 101, it is necessary to set the projection of the port where the first channel 11 communicates with the accommodation cavity 101 along the axial direction of the adjusting rod 21 to completely fall on the end face of the adjusting rod 21; at the same time, in order to enable the adjusting rod 21 to adjust the size of the water flow from the first channel 11 into the accommodation cavity 101, it is necessary to set the end face of the adjusting rod 21 to be conical. In this way, when the adjusting rod 21 moves axially towards the first channel 11, a part of the end face of the adjusting rod 21 extends into the first channel 11 to reduce the area of the port where the first channel 11 communicates with the accommodation cavity 101.

[0044] In some embodiments, the axial direction of the adjusting rod 21 can also be set perpendicular to the direction in which water flows into the accommodation cavity 101 through the first channel 11. At this time, the adjusting rod 21 blocks the water flow in the first channel 11 by using its side face. In these embodiments of the present invention, it is necessary to set the port where the first channel 11 communicates with the accommodation cavity 101 to be adapted to the adjusting rod 21, that is, when the cross-sectional shape of the adjusting rod 21 along its own axial direction is rectangular, the port where the first channel 11 communicates with the accommodation cavity 101 can be set to be planar; when the cross-sectional shape of the adjusting rod 21 along its own axial direction is circular, the port where the first channel 11 communicates with the accommodation cavity 101 can be set to be a curved surface, and the radius of curvature of this curved surface is equal to the radius of the adjusting rod 21.

[0045] In this way, the port where the first channel 11 communicates with the accommodation cavity 101 can be made more fitting with the adjusting rod 21, reducing the probability of water leakage from the first channel 11. At this time, by controlling the movement of the adjusting rod 21 along its own axial direction, the area of the port where the adjusting rod 21 blocks the communication between the first channel 11 and the accommodation cavity 101 can be controlled, thereby realizing the adjustment of the water flow rate.

[0046] In these embodiments of the present invention, the way the adjusting rod 21 moves along its own axial direction can be, but is not limited to, pushing and pulling, rotational advancement, etc., and can be selected according to the shape of the adjusting rod 21, the shape of the first channel 11, and the relative positional relationship between the adjusting rod 21 and the first channel 11.

[0047] In the technical solution of the present utility model, at least a part of the adjusting rod 21 is arranged in the accommodating cavity 101, and the adjusting rod 21 is arranged to be axially movable along its own axis, so that the adjusting rod 21 can adjust the communication area at the connection between the first channel 11 and the accommodating cavity 101 through its own axial movement, thereby controlling the flow rate of the external water source flowing into the accommodating cavity 101 and realizing multi-stage adjustment of the flow rate.

[0048] In some embodiments, the first channel 11 includes a straight cylinder section 111 communicating with the accommodating cavity 101, and the straight cylinder section 111 is coaxial with the adjusting rod 21; along the direction from the straight cylinder section 111 to the adjusting rod 21, the cross-sectional area of the end of the adjusting rod 21 close to the straight cylinder section 111 gradually increases.

[0049] The first channel 11 includes a straight cylinder section 111 communicating with the accommodating cavity 101, which means that the first channel 11 can be a special-shaped structure. The first channel 11 can include a cavity structure or a curved section structure formed by enclosing the wall structure of the housing 10, and the part of the first channel 11 communicating with the accommodating cavity 101 is the straight cylinder section 111, and the straight cylinder section 111 is the last section structure before the external water source enters the accommodating cavity 101.

[0050] The straight cylinder section 111 is coaxial with the adjusting rod 21, that is, in these embodiments of the present utility model, the axis of the adjusting rod 21 is parallel to the direction of the water flow flowing through the first channel 11 into the accommodating cavity 101, and the end face of the adjusting rod 21 seals the port of the first channel 11 communicating with the accommodating cavity 101.

[0051] Along the direction from the straight cylinder section 111 to the adjusting rod 21, the cross-sectional area of the end of the adjusting rod 21 close to the straight cylinder section 111 gradually increases, which means that the end face of the adjusting rod 21 close to the straight cylinder section 111 is conical. In this way, when the adjusting rod 21 advances axially towards the straight cylinder section 111, a part of the end face of the adjusting rod 21 extends into the straight cylinder section 111 to block the water flow in the straight cylinder section 111, so that the water flow in the straight cylinder section 111 can only flow out through the gap between the adjusting rod 21 and the inner wall of the straight cylinder section 111, thus achieving the purpose of reducing the rate of the external water source flowing into the accommodating cavity 101.

[0052] At the same time, as described above, since the projection of the port of the first channel 11 communicating with the accommodating cavity 101 along the axis of the adjusting rod 21 completely falls on the end face of the adjusting rod 21, when the adjusting rod 21 abuts against the port of the first channel 11, the adjusting rod 21 can completely block the port of the first channel 11 communicating with the accommodating cavity 101 and restrict the flow of the external water source into the accommodating cavity 101.

[0053] In some embodiments, the shape of the port of the straight cylinder section 111 close to the accommodating cavity 101 matches the shape of the end face of the adjusting rod 21 close to the straight cylinder section 111. That is, the shape of the port where the straight cylinder section 111 communicates with the accommodating cavity 101 is such that, along the direction from the straight cylinder section 111 to the adjusting rod 21, the cross-sectional area of the port of the straight cylinder section 111 close to the accommodating cavity 101 gradually increases.

[0054] In this way, in these embodiments of the present utility model, by providing an end face with a gradually increasing cross-sectional area along the direction from the straight cylinder section 111 to the adjusting rod 21 at one end of the adjusting rod 21 close to the straight cylinder section 111, and providing a port with a gradually increasing cross-sectional area along the direction from the straight cylinder section 111 to the adjusting rod 21 at one end where the straight cylinder section 111 communicates with the accommodating cavity 101, a tapered mating structure with a matching shape is formed between the end face of the adjusting rod 21 and the port of the straight cylinder section 111.

[0055] When the adjusting rod 21 moves axially towards the straight cylinder section 111, the part with a smaller cross-sectional area first extends into the part with a larger cross-sectional area in the straight cylinder section 111, realizing the blocking of the port where the straight cylinder section 111 flows into the accommodating cavity 101, so that the water in the straight cylinder section 111 can only flow into the accommodating cavity 101 through the gap between the adjusting rod 21 and the inner wall of the straight cylinder section 111. As the adjusting rod 21 continues to move axially towards the straight cylinder section 111, the gap between the adjusting rod 21 and the inner wall of the straight cylinder section 111 gradually decreases, thereby gradually reducing the rate at which the water in the first channel 11 flows into the accommodating cavity 101.

[0056] In some embodiments, the housing 10 further includes an installation cavity 13, and the adjusting assembly 20 further includes a fastener 22 connected to the housing 10; the adjusting rod 21 includes a plurality of buckles 211 arranged at intervals along the axial direction, and the plurality of buckles 211 are arranged in the installation cavity 13 and are movably connected to the fastener 22.

[0057] The installation cavity 13 is a cavity formed by enclosing the wall structure of the housing 10 and can be used to install the adjusting assembly 20. In these embodiments of the present utility model, the installation cavity 13 is arranged on the axial extension line of the straight cylinder section 111 to facilitate the arrangement of the adjusting rod 21.

[0058] The adjusting assembly 20 further includes a fastener 22 connected to the housing 10. Among them, the fastener 22 can be used to provide support, guidance, and positioning for the adjusting rod 21. The fastener 22 is connected to the housing 10. A possible implementation manner is that the fastener 22 is connected to the housing 10 by a detachable connection manner such as threaded connection, snap connection, or connection by a connecting member; or, it can also be set that the fastener 22 is connected to the housing 10 by a fixed connection manner such as welding or integral molding.

[0059] In these embodiments of the present utility model, the fastener 22 may be disposed within the installation cavity 13. Alternatively, in some embodiments, the fastener 22 may also be a component that cooperates with the housing 10 to jointly form the installation cavity 13.

[0060] The adjusting rod 21 includes a plurality of buckles 211 that are sequentially spaced along the axial direction. The plurality of buckles 211 are movably connected to the fastener 22, which means that in these embodiments of the present utility model, the plurality of buckles 211 sequentially spaced along the axial direction of the adjusting rod 21 are the shifting structure of the flow rate adjusting device 100. That is, the adjusting rod 21 can adjust the distance between itself and the straight cylinder section 111 along the axial direction through the connection of each buckle 211 with the fastener 22, thereby adjusting the communication area size between the straight cylinder section 111 and the accommodating cavity 101, and finally realizing the shifting adjustment of the flow rate.

[0061] The movable connection between the buckle 211 and the fastener 22 enables each buckle 211 to switch the relationship between it and the fastener 22 between fastening and loosening. The ways of movable connection include but are not limited to rotational connection, sliding connection, snap connection, abutting connection, etc.

[0062] In these embodiments of the present utility model, the adjusting rod 21 includes a body portion 212 in the shape of a straight rod. In the embodiment where the body portion 212 is cylindrical, the plurality of buckles 211 may be formed by protruding radially outward from the body portion 212. In some embodiments, the plurality of buckles 211 may also be formed by radially inwardly recessing the body portion 212.

[0063] In some embodiments, the fastener 22 includes a plate body portion 221 and a through groove 222 opened in the plate body portion 221. The plate body portion 221 is disposed perpendicular to the axial direction of the adjusting rod 21, and the through groove 222 axially penetrates the plate body portion 221 along the axial direction of the adjusting rod 21; the plurality of buckles 211 can pass through the through groove 222 along the axial direction of the adjusting rod 21 as the adjusting rod 21 moves, and after the adjusting rod 21 rotates axially, the buckle 211 is snap-connected to the fastener 22.

[0064] In these embodiments of the present utility model, the plate body portion 221 is a structural component of the fastener 22, and can at least be used to form a fastening state with the buckle 211, so as to utilize the fastening state of the two to realize the positioning and fastening of the adjusting rod 21, and adjust the distance between the adjusting rod 21 and the port of the straight cylinder section 111 communicating with the accommodating cavity 101.

[0065] In these embodiments of the present utility model, the plate body portion 221 is disposed perpendicular to the axial direction of the adjusting rod 21, and the through groove 222 axially penetrates the plate body portion 221 along the axial direction of the adjusting rod 21. Among them, the through groove 222 is the part for the adjusting rod 21 to pass through the plate body portion 221, and can be used to provide positioning for the adjusting rod 21.

[0066] A plurality of buckles 211 can pass through the through slot 222 along the axial direction of the adjusting rod 21. After the adjusting rod 21 rotates axially, the buckle 211 is clamped with the fastener 22 to limit the degree of freedom of the adjusting rod 21 to continue moving axially.

[0067] In a possible implementation manner, the thickness of the plate body portion 221 is not greater than the distance between adjacent buckles 211. After the adjusting rod 21 rotates axially, the plate body portion 221 is clamped between adjacent buckles 211.

[0068] In these embodiments of the present utility model, the buckle 211 can be set as a boss structure protruding radially outward along the body portion 212, and the orthographic projection of the buckle 211 and the body portion 212 along the axial direction completely coincides with the cross-sectional shape of the through slot 222 along the plane perpendicular to the axial direction of the adjusting rod 21. That is, the through slot 222 includes a first portion (not labeled) with the same cross-sectional shape as the body portion 212 and a second portion (not labeled) with the same cross-sectional shape as the buckle 211.

[0069] At the same time, since the thickness of the plate body portion 221 is not greater than the distance between adjacent buckles 211, during the operation of the flow rate adjusting device 100, after rotating the body portion 212, when the buckle 211 is aligned with the second portion of the through slot 222, the body portion 212 can be moved axially in a direction closer to or farther from the straight cylinder section 111. When adjusted to the appropriate position, the plate body portion 221 can be clamped between adjacent buckles 211 by rotation to achieve the positioning of the adjusting rod 21.

[0070] In some embodiments of the present utility model, the thickness of one end or both ends of the buckle 211 to the middle position along the rotation direction can be gradually increased. In this way, the distance between adjacent buckles 211 can be gradually reduced in the rotation direction, thereby providing a guiding effect for the plate body portion 221 to be inserted between adjacent buckles 211, reducing the accuracy requirement for the axial movement distance when the user adjusts the adjusting rod 21, and instead using the change in the distance between adjacent buckles 211 to provide guidance to further improve the user experience.

[0071] In some embodiments of the present utility model, in a plane perpendicular to the axial direction of the adjusting rod 21, the number of buckles 211 can be set to one, two, or three, but not limited thereto. Correspondingly, the second portion of the through slot 222 can also be set to one, two, or three, but not limited thereto.

[0072] Please refer to Figure 5To FIGS. 7, in some embodiments, the fastener 22 includes a snap seat 223. The snap seat 223 is received in the installation cavity 13 and connected to the housing 10. The snap seat 223 includes at least one installation wall 2231, and a snap block (not labeled) matching the snap 211 is provided on the installation wall 2231; the adjusting rod 21 can move along its axial direction to adjust the positions of the snaps 211 and the snap block, and the adjusting rod 21 can rotate along its axial direction to switch the connection and release states of the snap 211 and the fastener 22.

[0073] The snap seat 223 is another embodiment that can provide positioning or guiding for the adjusting rod 21 in addition to the plate body part 221. In these embodiments of the present utility model, when the adjusting rod 21 moves axially, the snap seat 223 can be respectively engaged with different snaps 211 to adjust the distance between the adjusting rod 21 and the straight cylinder section 111, thereby realizing the shift adjustment of the water flow rate flowing into the accommodation cavity 101.

[0074] The snap seat 223 is received in the installation cavity 13 and connected to the housing 10, which means that the snap seat 223 is connected to the inner wall of the housing 10 corresponding to the installation cavity 13. The connection method can adopt a fixed connection or a detachable connection method.

[0075] The snap seat 223 includes at least one installation wall 2231, and a snap block matching the snap 211 is provided on the installation wall 2231. That is, in these embodiments of the present utility model, each snap 211 can be respectively engaged with the snap block on the installation wall 2231 through the axial movement of the adjusting rod 21 to realize the multi-stage adjustment of the flow rate adjusting device 100.

[0076] The installation wall 2231 is provided with a snap block matching the snap 211, which means that in these embodiments of the present utility model, the snap 211 can be a recessed structure formed by the radial depression of the body part 212, and the snap block provided on the installation wall 2231 matches each snap 211 so that when the adjusting rod 21 moves along its own axial direction, the snap block can be successively engaged with each snap 211 to realize the adjustment of different gears of the flow rate adjusting device 100.

[0077] In these embodiments of the present utility model, it can be set that the snap block on the installation wall 2231 has a certain elasticity. The cross-sectional shape of each snap 211 perpendicular to the axial direction of the adjusting rod 21 is rectangular, and when each snap 211 contacts the snap block, the two include two contact surfaces opposite to each other along the axial direction of the adjusting rod 21, wherein one contact surface is an inclined surface and the other contact surface is a plane perpendicular to the axial direction of the adjusting rod 21.

[0078] In this way, when the user operates the adjusting lever 21 to adjust the gear, the rectangular snap 211 with a rectangular cross-sectional shape can be rotated to a posture where it can contact the clamping block by rotating the adjusting lever 21 axially first. At this time, since the clamping block on the mounting wall 2231 has a certain elasticity, and there are the aforementioned inclined plane and plane opposite to each other along the axial direction of the adjusting lever 21 between the snap 211 and the clamping block, the user can push the adjusting lever 21 axially to squeeze and deform the clamping block by using the inclined plane between the snap 211 and the clamping block. When the next snap 211 moves to a position where it can be clamped with the snap, the clamping block can quickly rebound to form a clamped and fastened structure with the snap 211, thus realizing the switching of the clamped states of the snaps 211 and the clamping block.

[0079] It should be noted that since one of the two contact surfaces of the snap 211 and the clamping block opposite to each other along the axial direction of the adjusting lever 21 is an inclined plane and the other is a plane perpendicular to the axial direction of the adjusting lever 21, the two contact surfaces limit the user to only operate the adjusting lever 21 to adjust the contact state between the snaps 211 and the clamping block in one axial direction (the direction where the inclined plane is located), and the degree of freedom of movement will be limited by the abutting action of the plane in the other direction. That is, the user can only adjust the flow rate and rate of water in the first channel 11 by pushing the adjusting lever 21 to increase or decrease.

[0080] At this time, since the cross-sectional shape of each snap 211 in the plane perpendicular to the axial direction of the adjusting lever 21 is rectangular, the user can rotate the adjusting lever 21 to disengage the snap 211 from the clamped state with the clamping block, so that the user can pull the adjusting lever 21 axially back to a suitable position and then rotate to clamp the snap 211 with the clamping block to realize the adjustment of the gear.

[0081] Exemplarily, in some embodiments of the present invention, it can be set that the snap seat 223 further includes a substrate 2232 and a connecting wall 2233. Among them, the substrate 2232 is arranged perpendicular to the axial direction of the adjusting lever 21, and a through hole (not labeled) for the adjusting lever 21 to pass through is provided at the central position. In these embodiments of the present invention, the mounting wall 2231 is bent and extended from the inner ring part of the substrate 2232 close to the through hole so that the mounting wall 2231 maintains a state parallel to the axial direction of the adjusting lever 21. The connecting wall 2233 can be bent and extended from the outer ring part of the substrate 2232 to realize the connection and fastening between the outer ring part of the substrate 2232 and the inner wall of the housing 10, so as to install the snap seat 223 in the installation cavity 13.

[0082] At this time, since one end of the mounting wall 2231 is connected to the substrate 2232, and there is a gap between the portion bent and extending from the substrate 2232 and the connecting wall 2233 or the inner wall of the housing 10, this portion of the mounting wall 2231 is in a "suspended" state. In this way, when the user operates the adjusting rod 21 to move axially, the inclined surfaces between the buckle 211 and the clamping block interact, enabling the mounting wall 2231 to elastically deform, deform outward to avoid the buckle 211, and when the next buckle 211 moves to a position opposite to the clamping block, the mounting wall 2231 can rebound and drive the clamping block to be clamped and fixed with the next buckle 211. Such an implementation structure is simple and convenient to process, which is beneficial for the user to operate and further improves the user experience.

[0083] In some embodiments, the adjusting rod 21 further includes a support plate 213. The support plate 213 is disposed perpendicular to the axial direction of the adjusting rod 21 and is spaced from a plurality of buckles 211 along the axial direction of the adjusting rod 21. A return spring 224 is disposed between the buckle seat 223 and the support plate 213.

[0084] The function of the support plate 213 is to provide support for the setting of the return spring 224. At this time, the return spring 224 is disposed between the buckle seat 223 and the support plate 213. When the user operates the adjusting rod 21 to move axially, the distance between the support plate 213 and the buckle seat 223 changes, and then the return spring 224 deforms accordingly, converting mechanical energy into elastic potential energy. When the user operates the adjusting rod 21 to rotate so that the buckle 211 is disengaged from the clamping state with the clamping block, the elastic potential energy accumulated when the adjusting rod 21 moves axially is released by the return spring 224, and is converted into mechanical energy to drive the adjusting rod 21 to reset through the support plate 213.

[0085] In these embodiments of the present utility model, the return spring 224 can be arranged coaxially with the adjusting rod 21 and on the outer wall of the adjusting rod 21 to utilize the adjusting rod 21 to provide a limit for the return spring 224, with better reliability.

[0086] In some embodiments, the housing 10 further includes a third channel 14. The third channel 14 is used to communicate the water outlet of the filter element with the outside.

[0087] The third channel 14 is the drainage structure of the flow regulating device 100 and is used to connect the drainage port of the filter element to discharge the purified water or waste water filtered by the filter element for subsequent use.

[0088] In these embodiments of the present utility model, one end of the third channel 14 can be arranged to communicate with the accommodation cavity 101, and the other end communicates with the outside. At this time, it can be used in embodiments where the water inlet and the drain outlet of the filter element are at the same end. One end of the filter element provided with the water inlet and the water outlet is connected to the housing 10 through the second channel 12, the water inlet of the filter element is communicated with the accommodation cavity 101, and the water outlet of the filter element is communicated with the third channel 14.

[0089] In this way, when the water flow input from the external water source flows into the accommodation cavity 101 through the first channel 11, it can be directly introduced into the water inlet of the filter element. After the water source introduced from the outside passes through the filter element, the wastewater generated by filtration or the purified water generated after filtration can be guided to the next process through the third channel 14, realizing wastewater purification or direct use of purified water.

[0090] In some embodiments, the adjustment assembly 20 can also be provided to include a seal 23.

[0091] In some embodiments of the present utility model, the seal 23 can be sleeved on one end of the body portion 212 close to the accommodation cavity 101 to increase the sealing performance between the body portion 212 and the inner wall of the housing 10 and reduce the risk of water in the accommodation cavity 101 flowing into the installation cavity 13.

[0092] In some embodiments of the present utility model, the seal 23 can also be sleeved on one end of the body portion 212 facing away from the accommodation cavity 101 to reduce the communication performance between the installation cavity 13 and the outside, improve the sealing performance and environmental stability of the installation cavity 13, and thus provide a good working environment for the normal operation of the adjustment assembly 20.

[0093] Exemplarily, in these embodiments of the present utility model, the seal 23 can be, but is not limited to, an elastic seal such as a rubber ring or a rubber pad.

[0094] The present utility model also provides a water purification device, which includes the flow rate adjustment device 100 provided in any of the foregoing embodiments.

[0095] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or direct / indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims

1. A flow regulating device, characterized in that: include: The housing has a receiving cavity and includes a first channel and a second channel communicating with the receiving cavity, wherein the first channel is used to connect to a water source, and the second channel is used to connect to a water inlet of the filter element; The adjusting assembly is connected to the housing and comprises an adjusting rod, at least a part of which is arranged in the accommodating cavity and can move along its own axial direction to adjust the communication area between the first channel and the accommodating cavity.

2. The flow regulating device according to claim 1, characterized in that: The first channel includes a straight section communicating with the accommodating chamber, and the straight section is coaxial with the adjusting rod; Along the direction from the straight tube section to the adjusting rod, the cross-sectional area of ​​the adjusting rod close to one end of the straight tube section gradually increases.

3. The flow regulating device according to claim 2, characterized in that: The shape of the port of the straight tube section close to the accommodating cavity matches the shape of the end surface of the adjusting rod close to the straight tube section.

4. The flow regulating device according to claim 1, characterized in that: The housing further comprises a mounting cavity, and the adjustment assembly further comprises a fastener connected to the housing; The adjusting rod comprises a plurality of buckles which are sequentially arranged at intervals along the axial direction, and the plurality of buckles are arranged in the mounting cavity and are movably connected with the fastener.

5. The flow regulating device according to claim 4, characterized in that: The fastener comprises a plate body and a through slot formed in the plate body, wherein the plate body is arranged perpendicular to the axial direction of the adjusting rod, and the through slot penetrates the plate body along the axial direction of the adjusting rod; The plurality of buckles can pass through the through slot along the axial direction of the adjusting rod along with the adjusting rod, and after the adjusting rod is rotated along the axial direction, the buckles are engaged with the fastener.

6. The flow regulating device according to claim 5, characterized in that: The thickness of the plate body is not greater than the spacing between adjacent buckles, and after the adjusting rod is rotated along the axial direction, the plate body is clamped between adjacent buckles.

7. The flow regulating device according to claim 4, characterized in that: The fastener comprises a buckle seat, which is accommodated in the mounting cavity and connected to the housing, and the buckle seat comprises at least one mounting wall, and the mounting wall is provided with a clamping block matching the buckle; The adjusting rod can be moved along its axial direction to adjust the position of each buckle and the clamping block, and the adjusting rod can be rotated along its axial direction to switch the connection and release states of the buckle and the fastening.

8. The flow regulating device according to claim 7, characterized in that: The adjusting rod further comprises a support plate, which is arranged perpendicular to the axial direction of the adjusting rod and is arranged spaced apart from the plurality of buckles along the axial direction of the adjusting rod. A return spring is arranged between the buckle seat and the support plate.

9. The flow regulating device according to claim 1, characterized in that: The housing further comprises a third channel, and the third channel is used to connect the water outlet of the filter element with the outside.

10. A water purification device, characterized in that: It comprises a flow regulating device as claimed in any one of claims 1 to 9.

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