Built-in one-way valve filter element and liquid filter device

Abstract

The utility model discloses a built-in one-way valve filter element and an applied liquid filter device, the built-in one-way valve filter element comprises a framework and a check valve, the framework is provided with a water inlet flow channel and a water outlet flow channel which are communicated with each other, the check valve comprises a check seat and a plug, the check seat is accommodated in the water outlet flow channel, and the plug is arranged in the framework. The non-return seat is provided with a communicating opening communicating with the water inlet runner and the water outlet runner, the plug can move relative to the non-return seat to open and close the communicating opening, and the plug moves towards the water inlet direction to open the communicating opening when water flows towards the water inlet direction and moves towards the non-return direction to close the communicating opening when water stops flowing. The built-in one-way valve filter element is arranged in the shell and comprises the non-return seat and the chock plug, and the chock plug is communicated with a water path when water is supplied to the wading equipment and cuts off the water path when the wading equipment stops supplying water. Therefore, the problems of abnormal sound and resource waste caused by water backflow when water supply of the wading equipment is stopped are avoided while water supply of the wading equipment is ensured.

Description

Technical Field

[0001] The utility model relates to a pre-filtering device for water-related equipment, in particular to a built-in one-way valve filter core and a liquid filtering device. Background Art

[0002] The pre-filter device of water-related equipment is a filter device configured at the water inlet end of the water-related equipment, which is used to filter impurities in the water and improve the water quality. The water-related equipment includes but is not limited to water heaters and dishwashers. Existing water-related equipment is prone to backflow when the water inlet pipe stops supplying water, causing other water pipes connected to it to be affected. For example, the backflow of hot water from a constant temperature water heater will cause the water temperature of the water pipe connected to it to rise, resulting in a waste of resources, and abnormal noise will be generated during the backflow of water. Utility Model Content

[0003] The utility model aims to provide a built-in one-way valve filter element to solve the problem of abnormal noise and waste of resources caused by water backflow in existing water-related equipment when the water inlet pipe stops supplying water.

[0004] The utility model is realized by the following technical solutions:

[0005] A built-in one-way valve filter element includes a skeleton and a check valve, wherein the skeleton has an inlet channel and an outlet channel that are interconnected, the inlet channel is connected to the outside via a water inlet, and the outlet channel is connected to the outside via a water outlet, the direction of the inlet channel toward the outlet channel is defined as the inlet direction, and the direction of the outlet channel toward the inlet channel is defined as the check direction, the check valve includes a check seat and a plug, the check seat is accommodated in the outlet channel, the check seat has a connecting port connecting the inlet channel and the outlet channel, at least a portion of the connecting port is formed on the check seat and is in close contact with the outlet channel, the plug can move relative to the check seat to open and close the connecting port, the plug moves toward the inlet direction to open the connecting port when water flows toward the inlet direction, and moves toward the check direction to close the connecting port when water stops flowing.

[0006] Furthermore, the anti-return seat is detachably fixedly connected to the water outlet channel and the frame.

[0007] Furthermore, an elastic member is provided between the plug and the anti-return seat, and the elastic member is used to drive the plug to move in the anti-return direction to close the communication port.

[0008] Furthermore, a positioning rod is provided on a side of the plug facing away from the communicating port, the positioning rod extends in a direction away from the communicating port, and the elastic member is passed through the positioning rod.

[0009] Furthermore, the anti-return seat is provided with a clearance hole for the positioning rod to pass through when the plug moves toward the water inlet direction.

[0010] Furthermore, a positioning hole for inserting the elastic member is formed on the anti-reverse seat.

[0011] Furthermore, the anti-return seat has a connecting part and a supporting part, the connecting part has the connecting port, the outer wall of the connecting part is tightly fitted with the inner wall of the water outlet channel, the connecting part and the supporting part are detachably fixedly connected to form an accommodating space for accommodating the plug, and the accommodating space is connected with the water outlet channel.

[0012] Furthermore, a sealing groove extending circumferentially thereof is formed on the outer wall of the connecting portion, and a sealing strip is provided in the sealing groove.

[0013] Furthermore, there are a plurality of water inlets, which are spaced apart in the circumferential direction and / or axial direction of the skeleton; and / or a filter material is provided outside the skeleton.

[0014] In order to solve the problem of abnormal noise and waste of resources caused by water backflow in existing water-related equipment when the water inlet pipe stops supplying water, the utility model provides a built-in one-way valve filter element, and accordingly, provides a liquid filtering device, including an outer shell, the outer shell having a filter chamber, a water inlet interface and a water outlet interface, the filter chamber is provided with the above-mentioned built-in one-way valve filter element, the built-in one-way valve filter element is spaced apart from the wall of the filter chamber to form a water inlet waterway, the water inlet waterway is connected with the water inlet channel through the water inlet, and is connected with the external waterway through the water inlet interface, and one end of the skeleton formed with the water outlet abuts against the wall of the filter chamber formed with the water outlet interface, so that the water outlet is directly opposite to the water outlet interface.

[0015] The advantage of the technical solution is that a built-in one-way valve filter element is arranged in the outer shell. Since the built-in one-way valve filter element includes a check seat and a plug, the plug connects the water path when the water-wading equipment is supplied with water and blocks the water path when the water-wading equipment stops supplying water. Therefore, the water supply to the water-wading equipment is ensured while avoiding the problem of abnormal noise and waste of resources caused by water backflow when the water-wading equipment stops supplying water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0018] Figure 1is a three-dimensional diagram of a liquid filtering device disclosed in an embodiment;

[0019] Figure 2 is a cross-sectional view of a liquid filtering device disclosed in an embodiment;

[0020] Figure 3 is a stereoscopic diagram of a filter element with a built-in one-way valve disclosed in an embodiment;

[0021] Figure 4 is an exploded view of a filter element with a built-in one-way valve disclosed in an embodiment;

[0022] Figure 5 is a cross-sectional view of a filter element with a built-in one-way valve disclosed in an embodiment;

[0023] Figure 6 is a three-dimensional diagram of a check valve in an embodiment;

[0024] Figure 7 2 is an exploded view of the check valve in the embodiment. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example: Figure 1-7As shown, the liquid filtering device includes a shell 1, the shell 1 has a filter chamber 101, a water inlet interface 102 and a water outlet interface 103, the water inlet interface 102 and the water outlet interface 103 are connected to the filter chamber 101, a built-in one-way valve filter core 2 is provided in the filter chamber 101, the built-in one-way valve filter core 2 includes a skeleton 201 and a check valve 202, the skeleton 201 has an inlet flow channel 215 and an outlet flow channel 216 that are connected to each other, the built-in one-way valve filter core 2 is spaced apart from the cavity wall of the filter chamber 101 to form an inlet waterway 100, the inlet waterway 100 is connected to the inlet flow channel 215 through the water inlet 217, and is connected to the external waterway through the water inlet interface 102, the outlet flow channel 216 is only connected to the outside through the water outlet 218, and there is only one water outlet 218, and one end of the skeleton 201 formed with the water outlet 218 abuts against the cavity wall of the filter chamber 101 formed with the water outlet interface 103 The water outlet 218 is directly opposite to the water outlet interface 103, the water outlet channel 216 is connected with the external water path through the water outlet 218 and the water outlet interface 103, the direction of the water inlet channel 215 toward the water outlet channel 216 is defined as the water inlet direction, and the direction of the water outlet channel 216 toward the water inlet channel 215 is defined as the anti-return direction, the check valve 202 includes a check seat 203 and a plug 204, the check seat 203 is accommodated in the water outlet channel 216, and ... The anti-return seat 203 has a connecting port 205 connecting the water inlet channel 215 and the water outlet channel 216. The anti-return seat 203 at least forms a portion of the connecting port 205 in close contact with the water outlet channel 216. The plug 204 can move relative to the anti-return seat 203 to open and close the connecting port 205. When water flows in the water inlet direction, the plug 204 moves in the water inlet direction to open the connecting port 205, and when the water stops flowing, it moves in the anti-return direction to close the connecting port 205.

[0027] The liquid filtering device is arranged at the water inlet end of the water-related equipment, wherein the liquid filtering device is connected to the water inlet pipe via the water inlet interface 102 , and is connected to the water-related equipment via the water outlet interface 103 .

[0028] When the water-wading equipment is supplied with water, water flows into the water inlet waterway 100 from the water inlet interface 102 and then enters the water inlet channel 215 through the water inlet 217. The plug 204 moves toward the water inlet direction under the push of the water flow to open the connecting port 205, allowing the water to flow from the water inlet channel 215 into the water outlet channel 216, and flows out of the liquid filter device through the water outlet 218 and the water outlet interface 103 and into the water-wading equipment.

[0029] When the water supply to the water-carrying device stops, the plug 204 moves in the non-return direction to close the connecting port 205, so that the water outlet channel 216 and the water inlet channel 215 are separated, thereby preventing the water in the water-carrying device from flowing back into the pipe connected thereto, causing abnormal noise and waste of resources.

[0030] In summary, the present embodiment provides a liquid filtering device to solve the problem of abnormal noise and waste of resources caused by water backflow when the water inlet pipe stops supplying water to the existing water-related equipment. The problem is mainly solved by configuring a built-in one-way valve filter element 2 in the outer shell 1. Since the built-in one-way valve filter element 2 includes a check seat 203 and a plug 204, the plug 204 connects the water path when the water-related equipment supplies water and blocks the water path when the water-related equipment stops supplying water. Therefore, the water supply to the water-related equipment is ensured while avoiding the problem of abnormal noise and waste of resources caused by water backflow when the water-related equipment stops supplying water.

[0031] In the embodiment of the utility model, the built-in one-way valve filter core 2 is detachably fixedly connected to the housing 1 in the filter chamber 101, and the check seat 203 is detachably fixedly connected to the frame 201 in the water outlet flow channel 216. Since the built-in one-way valve filter core 2 is detachably fixedly connected to the housing 1, and the check seat 203 is detachably fixedly connected to the frame 201, it is convenient to assemble and replace the built-in one-way valve filter core 2 and the check seat 203, and the maintenance cost is low.

[0032] In the embodiment of the utility model, an elastic member 206 is provided between the plug 204 and the anti-return seat 203, and the elastic member 206 is used to drive the plug 204 to move in the anti-return direction to close the communication port 205. Specifically, the elastic member 206 is a spring. The above arrangement enables the plug 204 to move in the anti-return direction to close the communication port 205 when the wading equipment stops supplying water by providing an elastic member 206 between the plug 204 and the anti-return seat 203 to move the plug 204 in the anti-return direction to close the communication port 205, so that the driving structure is simple and easy to implement.

[0033] In the embodiment of the utility model, a positioning rod 207 is provided on the side of the plug 204 facing away from the communication port 205, the positioning rod 207 extends in a direction away from the communication port 205, and the elastic member 206 is passed through the positioning rod 207. The above arrangement makes the elastic member 206 stably assembled by providing the positioning rod 207 on the side of the plug 204 facing away from the communication port 205 for the elastic member 206 to pass through.

[0034] In the embodiment of the utility model, the anti-return seat 203 is provided with a clearance hole 208 for the positioning rod 207 to pass through when the plug 204 moves toward the water inlet direction. Since the anti-return seat 203 is provided with a clearance hole 208 for the positioning rod 207 to pass through when the plug 204 moves toward the water inlet direction, it is prevented that the plug 204 stops on the anti-return seat 203 when moving toward the water inlet direction, so that the connecting port 205 opens smoothly.

[0035] In the embodiment of the utility model, a positioning hole 209 for inserting the elastic member 206 is formed on the anti-reverse seat 203. Since the positioning hole 209 for inserting the elastic member 206 is formed on the anti-reverse seat 203, the elastic member 206 is stably assembled.

[0036] In the embodiment of the utility model, the anti-return seat 203 has a connecting portion 210 and a supporting portion 211, the connecting portion 210 has a connecting port 205, the outer wall of the connecting portion 210 is tightly fitted with the inner wall of the water outlet flow channel 216, the connecting portion 210 and the supporting portion 211 are detachably fixedly connected to enclose a receiving space 212 for accommodating the plug 204, and the receiving space 212 is connected to the water outlet flow channel 216. The above arrangement is convenient for assembling the anti-return seat 203 and the plug 204 by configuring the anti-return seat 203 to be detachably fixedly connected to enclose the connecting portion and the supporting portion 211 that define the plug 204.

[0037] In the embodiment of the utility model, the outer wall of the connecting portion 210 is formed with a sealing groove 213 extending around the circumference thereof, and a sealing strip 214 is arranged in the sealing groove 213. The above arrangement is provided by providing the sealing groove 213 on the outer wall of the connecting portion 210 and providing the sealing strip 214 in the sealing groove 213, so that the connecting portion 210 is tightly connected with the water outlet channel 216, and the sealing effect is good.

[0038] In the embodiment of the utility model, there are a plurality of water inlets 217, which are spaced apart in the circumferential direction and / or axial direction of the skeleton 201, and a filter material 3 is provided outside the skeleton 201. Since there are a plurality of water inlets 217, which are spaced apart in the circumferential direction and / or axial direction of the skeleton 201, the filtering efficiency of the built-in one-way valve filter element 2 is high.

[0039] It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as the "second" information, and similarly, the "second" information may also be referred to as the "first" information. In addition, the terms "center of a circle", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0040] As described above, one or more implementation methods are provided in combination with specific contents, and the specific implementation of the utility model is not limited to these descriptions. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or some technical deductions or replacements made on the premise of the concept of the utility model should be regarded as the protection of the utility model.

Claims

1. Built-in one-way valve filter element, characterized by: It comprises a frame and a check valve, wherein the frame has an inlet flow channel and an outlet flow channel that are interconnected, wherein the inlet flow channel is connected to the outside through a water inlet, and the outlet flow channel is connected to the outside through a water outlet, wherein the direction from the inlet flow channel to the outlet flow channel is defined as a water inlet direction, and the direction from the outlet flow channel to the inlet flow channel is defined as a check valve direction; The check valve includes a check seat and a plug. The check seat is accommodated in the water outlet channel. The check seat has a connecting port connecting the water inlet channel and the water outlet channel. The check seat at least forms a portion of the connecting port that is in close contact with the water outlet channel. The plug can move relative to the check seat to open and close the connecting port. When water flows in the water inlet direction, the plug moves in the water inlet direction to open the connecting port, and when water stops flowing, it moves in the check direction to close the connecting port.

2. The filter element with a built-in one-way valve according to claim 1, characterized in that: The anti-return seat is detachably fixedly connected to the water outlet channel and the frame.

3. The filter element with built-in one-way valve according to claim 1, characterized in that: An elastic member is provided between the plug and the anti-return seat, and the elastic member is used to drive the plug to move in the anti-return direction to close the communication port.

4. The filter element with a built-in one-way valve according to claim 3, characterized in that: A positioning rod is provided on a side of the plug head facing away from the communicating port. The positioning rod extends in a direction away from the communicating port, and the elastic member is passed through the positioning rod.

5. The filter element with a built-in one-way valve according to claim 4, characterized in that: The anti-return seat is provided with a clearance hole for the positioning rod to pass through when the plug moves toward the water inlet direction.

6. The filter element with a built-in one-way valve according to claim 3, characterized in that: The anti-reverse seat is formed with a positioning hole for the elastic member to be placed.

7. The filter element with a built-in one-way valve according to claim 1, characterized in that: The anti-return seat has a connecting part and a supporting part, the connecting part has the connecting port, the outer wall of the connecting part is tightly fitted with the inner wall of the water outlet channel, the connecting part and the supporting part are detachably fixedly connected to form an accommodating space for accommodating the plug, and the accommodating space is connected with the water outlet channel.

8. The filter element with a built-in one-way valve according to claim 7, characterized in that: The outer wall of the communication portion is formed with a sealing groove extending around the circumference thereof, and a sealing strip is arranged in the sealing groove.

9. The filter element with a built-in one-way valve according to claim 1, characterized in that: There are a plurality of water inlets, which are spaced apart in the circumferential direction and / or axial direction of the frame; and / or a filter material is disposed outside the frame.

10. A liquid filtering device, comprising a housing, wherein the housing has a filtering chamber, a water inlet interface and a water outlet interface, wherein: The filter chamber is provided with a built-in one-way valve filter element as described in any one of claims 1 to 9, and the built-in one-way valve filter element is spaced apart from the filter chamber wall to form an inlet waterway, the inlet waterway is connected with the inlet channel via the water inlet, and is connected with the external waterway via the water inlet interface, and one end of the skeleton forming the water outlet abuts against the wall of the filter chamber forming the water outlet interface, so that the water outlet is opposite to the water outlet interface.

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