CN210716145U

CN210716145U - Cleaning system and check valve

Info

Publication number: CN210716145U
Application number: CN201921452518.3U
Authority: CN
Inventors: 周炬光
Original assignee: Guangzhou Nv Automobile Parts Co ltd
Current assignee: Guangzhou Nv Automobile Parts Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-06-09
Anticipated expiration: 2029-09-03

Abstract

The utility model relates to a cleaning system and check valve. The cleaning system comprises a cleaning nozzle, a water pump and a one-way valve, wherein the one-way valve comprises a valve sleeve, an elastic valve body and a connector. The water pump pumps fluid into the joint, and pushes away the check part of the elastic valve body through the pressure of the fluid. The fluid enters the flow channel formed by the supporting part from the gap between the non-return part and the inner wall of the connecting end of the valve sleeve. Because the flow channel is communicated with the water outlet end of the valve sleeve, fluid can enter the cleaning spray head through the water outlet end. When the fluid flows back, the fluid can push the pressing part or the non-return part to enable the non-return part to be stably abutted against the connector, the fluid is prevented from flowing back into the connector, and the non-return and the circulation of the one-way valve can be realized through the elasticity of the elastic valve body. The check valve has the advantages of few parts, simple structure and convenient installation process. And the portion that sticiss of elasticity valve body sets up in compressing tightly the space, and then avoids leading to the installation unstability through the spring mounting.

Description

Cleaning system and check valve

Technical Field

The utility model relates to a valve body technical field especially relates to a cleaning system and check valve.

Background

Conventional check valves are used in many applications to prevent fluid backflow. For example, one-way valves are used in cleaning systems to prevent backflow of contaminated water during cleaning. The interior of the traditional check valve is abutted to the valve core through a spring to realize the control of one-way fluid circulation. However, the check valve has more parts and complex structure, and the check performance of the check valve can be failed due to the fact that the spring is not installed and matched in place.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a cleaning system and a check valve that have simple structures and are stably installed.

A one-way valve comprising:

the valve sleeve is provided with a water outlet end and a connecting end, at least two supporting parts arranged at intervals are formed on the inner wall of the connecting end, a flow channel is formed between every two adjacent supporting parts, the flow channel is communicated with the water outlet end, and a compression space is enclosed between the inner walls of the supporting parts;

the elastic valve body comprises a non-return part and a pressing part connected with the non-return part, the pressing part is arranged in the pressing space, and a gap is formed between the non-return part and the inner wall of the connecting end; and

and one end of the joint is connected with the connecting end, and the non-return part can be abutted against the joint.

When the check valve is installed, the elastic valve body is arranged in a compression space enclosed by the inner wall of the valve sleeve supporting part, and one end of the joint is further connected to the connecting end of the valve sleeve, so that the non-return part of the elastic valve body can be abutted against the joint. When the check valve is used, fluid enters the joint, and the check part is pushed to be opened by the pressure of the fluid due to the elasticity of the elastic valve body. Because the non-return portion has the clearance with the inner wall of connecting end for fluid can enter into the runner that the supporting part formed. Because the flow channel is communicated with the water outlet end of the valve sleeve, the fluid can flow out through the water outlet end. When the fluid flows in from the water outlet end, the fluid can push the pressing part or the non-return part, so that the non-return part is stably abutted against the joint, and the fluid is prevented from flowing back into the joint. The check and the circulation of the check valve can be realized through the elasticity of the elastic valve body. The check valve has the advantages of few parts, simple structure and convenient installation process. And the portion that sticiss of elasticity valve body sets up in compressing tightly the space, and then avoids leading to the installation unstability through the spring mounting.

The technical solution is further explained below:

in one embodiment, the size of one end of the compaction space away from the water outlet end tends to increase towards the direction away from the water outlet end.

In one embodiment, at least two pressing portions arranged at intervals are formed on the outer wall of the pressing portion, and the pressing portions can abut against the supporting portion.

In one embodiment, the number of the supporting portions corresponds to the number of the pressing portions, and each pressing portion can be correspondingly abutted against one supporting portion.

In one embodiment, an abutting table is further formed on the inner wall of the support part or the water outlet end, and one end, far away from the non-return part, of the pressing part abuts against the abutting table.

In one embodiment, the size of the end of the pressing portion away from the non-return portion tends to decrease in a direction away from the non-return portion.

In one embodiment, the elastic valve body is a rubber valve body.

In one embodiment, the valve sleeve further comprises a mating end connected to a side of the connecting end opposite to the water outlet end, and one end of the connector is inserted into the mating end.

In one embodiment, a clamping table is formed on the outer wall of one end of the connector, a clamping groove is formed on the inner wall of the mating end, and the clamping table is clamped in the clamping groove; or

The connector is characterized in that a clamping groove is formed in the outer wall of one end of the connector, a clamping table is formed on the inner wall of the matching end, and the clamping table is arranged in the clamping groove.

A cleaning system, comprising:

cleaning the spray head;

a water pump; and

according to the one-way valve, the water outlet end of the valve sleeve is connected with the cleaning spray head, and the other end of the joint is connected with the water pump.

When the cleaning system is used, the water pump pumps fluid into the joint and flows into one end of the joint from the other end of the joint. Because the elastic valve body has elasticity, the check part is pushed by the pressure of the fluid, and then the check part is pushed away. Because the non-return portion has the clearance with the inner wall of connecting end for fluid can enter into the runner that the supporting part formed. Because the flow channel is communicated with the water outlet end of the valve sleeve, the fluid can flow out through the water outlet end and enter the cleaning spray head through the water outlet end. When the fluid flows in from the water outlet end, the fluid can push the pressing part or the non-return part, so that the non-return part is stably abutted against the joint, and the fluid is prevented from flowing back into the joint. The check and the circulation of the check valve can be realized through the elasticity of the elastic valve body. The check valve has the advantages of few parts, simple structure and convenient installation process. And the portion that sticiss of elasticity valve body sets up in compressing tightly the space, and then avoids leading to the installation unstability through the spring mounting.

Drawings

FIG. 1 is a cross-sectional view of a one-way valve in one embodiment;

fig. 2 is a partial cross-sectional view of the valve sleeve of fig. 1;

FIG. 3 is a schematic structural view of the elastomeric valve body of FIG. 1;

fig. 4 is a schematic structural view of the joint of fig. 1.

Description of reference numerals:

10. the check valve comprises a check valve body 100, a valve sleeve 110, a water outlet end 120, a connecting end 130, a supporting portion 132, a flow channel 134, a pressing space 136, a butting table 140, a matching end 142, a clamping groove 200, an elastic valve body 210, a check portion 220, a pressing portion 230, a pressing portion 300, a connector 310 and a clamping table.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

Referring to fig. 1 and 2, an embodiment of a check valve 10 is used to realize fluid circulation and check. Specifically, the check valve 10 includes a valve housing 100, an elastic valve body 200, and a joint 300.

The valve sleeve 100 has a water outlet end 110 and a connecting end 120, at least two supporting portions 130 are formed on the inner wall of the connecting end 120 at intervals, a flow channel 132 is formed between two adjacent supporting portions 130, the flow channel 132 is communicated with the water outlet end 110, and a compression space 134 is defined between the inner walls of the supporting portions 130. The elastic valve body 200 includes a check portion 210 and a pressing portion 220 connected to the check portion 210, the pressing portion 220 is disposed in the pressing space 134, and the check portion 210 has a gap with an inner wall of the connection end 120. One end of the joint 300 is connected to the connection end 120, and the check portion 210 can be abutted against the joint 300.

When the check valve 10 is mounted, the elastic valve body 200 is disposed in the pressing space 134, and one end of the joint 300 is connected to the connection end 120 of the valve housing 100, so that the check portion 210 of the elastic valve body 200 can be brought into contact with the joint 300. In use, fluid enters the connector 300, and due to the elasticity of the elastic valve body 200, the check part 210 is pushed by the pressure of the fluid, so that the check part 210 is pushed away. Since the check portion 210 has a gap with the inner wall of the connection end 120, the fluid enters the flow passage 132 formed by the support portion 130 through the gap. Because the flow passage 132 is in communication with the water outlet end 110 of the valve housing 100, fluid can flow out through the water outlet end 110. When the fluid flows in from the water outlet end 110, the fluid can push the pressing portion 220 or the check portion 210, so that the check portion 210 stably abuts against the connector 300, thereby preventing the fluid from flowing back into the connector 300. The check and the flow of the check valve 10 can be realized by the elasticity of the elastic valve body 200. The check valve 10 has the advantages of few parts, simple structure and convenient installation process. And the pressing portion 220 of the elastic valve body 200 is disposed in the pressing space 134, thereby preventing unstable installation caused by spring installation.

Referring to fig. 2 and fig. 3, in the present embodiment, the size of the end of the pressing space 134 away from the water outlet end 110 tends to increase toward the direction away from the water outlet end 110. When the fluid pushes the check part 210 through the joint 300, the check part 210 moves in a direction away from the joint 300, the check part 210 can move in the pressing space 134 in a direction towards the water outlet end 110, and the size of the end of the pressing space 134 away from the water outlet end 110 tends to increase in a direction away from the water outlet end 110, so that the movement stability of the check part 210 can be improved, and the movement distance of the check part 210 is effectively limited to be too large.

Specifically, the diameter of the check portion 210 is larger than that of the pressing portion 220, thereby enabling the pressing portion 220 to be stably disposed in the pressing space 134. The movement of the check 210 is effectively restricted by the pressing space 134, and the check 210 abuts against the joint 300 under the condition that the check 210 is not or only slightly stressed.

In an embodiment, at least two pressing portions 230 are formed on an outer wall of the pressing portion 220, and the pressing portions 230 can abut against the supporting portion 130. The pressing part 220 can be more stably arranged in the pressing space 134 by arranging the pressing part 230, and the pressing part 220 is prevented from influencing the circulation of the flow channel 132 formed between the supporting parts 130.

In other embodiments, the pressing portion 230 can be omitted, and the pressing portion 220 directly abuts against the inner wall of the supporting portion 130. Specifically, the size of the pressing portion 220 matches the size of the pressing space 134, thereby enabling the pressing portion 220 to be stably disposed in the pressing space 134.

In an embodiment, the number of the supporting portions 130 corresponds to the number of the pressing portions 230, and each pressing portion 230 can be correspondingly abutted against one supporting portion 130, so that the pressing portion 230 can be stably disposed in the pressing space 134 surrounded by the supporting portions 130, and the pressing portion 220 is prevented from moving in the pressing space 134. Effectively improving the stability of the mounting of the elastomeric valve body 200 on the valve housing 100. Specifically, the number of the supporting portions 130 is six, and the number of the pressing portions 230 is six.

In another embodiment, the number of the supporting portions 130 and the number of the pressing portions 230 may be different. For example, the number of the supporting portions 130 is six, the number of the pressing portions 230 is four, and the like, as long as the pressing portions 220 can be stably disposed in the pressing space 134.

In one embodiment, an abutting platform 136 is further formed on the inner wall of the supporting portion 130 or the water outlet end 110, and an end of the pressing portion 220 away from the non-return portion 210 abuts against the abutting platform 136. The abutting table 136 can effectively limit the movement of the elastic valve body 200, so that the check portion 210 of the elastic valve body 200 is stably abutted against the connector 300, and the check portion 210 is stably abutted against the connector 300 under the condition of no or small stress of the check portion 210.

In the present embodiment, the abutment 136 is formed on the inner wall of the supporting portion 130, so as to prevent the abutment 136 from affecting the communication between the flow channel 132 and the water outlet end 110.

Optionally, the size of the end of the pressing portion 220 away from the non-return portion 210 tends to decrease toward the direction away from the non-return portion 210, so that the pressing portion 220 can more stably abut against the abutment platform 136, and the stability of the non-return portion 210 abutting against the joint 300 is further improved.

In the present embodiment, the elastic valve body 200 is a rubber valve body, and the rubber valve body can improve the stability of the elastic valve body disposed in the valve housing 100 and the sealing property of the elastic valve body abutting against the joint 300, and can utilize the elasticity of the rubber valve body to realize the flow and check effects of the check valve 10. Specifically, the elastic valve body 200 is made of an EPDM material. The EPDM material has good aging resistance, so that the service life of the elastic valve body 200 can be effectively prolonged. In other embodiments, the elastic valve body 200 may be made of other elastic materials such as silicon rubber.

In this embodiment, the valve sleeve 100 is an integrally formed structure, so that the valve sleeve 100 has a stable structure and a low cost.

Referring to fig. 2 and 4, in one embodiment, the valve sleeve 100 further includes a mating end 140, the mating end 140 is connected to a side of the connecting end 120 opposite to the water outlet end 110, and an end of the connector 300 is inserted into the mating end 140. The coupling of the connector 300 to the valve housing 100, and thus the abutment of the backstop 210 against the connector 300, can be facilitated by the provision of the mating end 140.

Specifically, one end of the header 300 is interference fit with the mating end 140, thereby allowing the header 300 to be stably connected to the mating end 140.

In other embodiments, mating end 140 may be omitted and connector 300 may be connected directly to connecting end 120 of valve housing 100, so long as check 210 abuts connector 300.

In one embodiment, the outer wall of the connector 300 is formed with a locking step 310, the inner wall of the mating end 140 is formed with a locking groove 142, and the locking step 310 is locked in the locking groove 142. The fitting 300 is stably seated on the valve housing 100 by the engagement of the catching groove 142 with the catching step 310. In another embodiment, the outer wall of the connector 300 has a slot 142, the inner wall of the mating end 140 has a boss 310, and the boss 310 is disposed in the slot 142.

In other embodiments, the connector 300 may be disposed on the valve housing 100 in other manners as long as the check portion 210 can be stably abutted against the connector 300.

In one embodiment, the cleaning system comprises the check valve 10, the cleaning nozzle and the water pump in any of the above embodiments, the water outlet end 110 of the valve housing 100 is connected to a cleaning nozzle, and the other end of the connector 300 is connected to the water pump. In use, the water pump pumps fluid into the adapter 300 from the other end of the adapter 300 into one end of the adapter 300. The fluid pushes the check part 210, and due to the elasticity of the elastic valve body 200, the check part 210 is pushed away, so that the fluid flows into the flow channel 132 formed between the support parts 130 from the gap between the check part 210 and the connection end 120, and flows into the water outlet end 110 from the flow channel 132. Fluid enters the cleaning spray head through the outlet end 110. When the fluid flows back, the check pushes the elastic valve body 200, so that the check portion 210 abuts against the connector 300 more stably, and the fluid is prevented from flowing back into the connector 300.

In other embodiments, the check valve 10 of any of the above embodiments may also be applied to other systems requiring one-way fluid communication.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A check valve, comprising:

2. The one-way valve of claim 1, wherein the compacted space tends to increase in size away from the outlet end at an end of the compacted space away from the outlet end.

3. The check valve according to claim 1, wherein at least two pressing portions are formed on an outer wall of the pressing portion at intervals, and the pressing portions can abut against the supporting portions.

4. The check valve as claimed in claim 3, wherein the number of the supporting portions corresponds to the number of the pressing portions, and each pressing portion can be pressed against one supporting portion.

5. The check valve according to any one of claims 1 to 4, wherein an abutment is further formed on an inner wall of the support portion or the water outlet end, and one end of the pressing portion, which is far away from the check portion, abuts against the abutment.

6. A check valve as claimed in claim 5, wherein the dimension of the end of the biasing portion remote from the non-return portion tends to decrease away from the non-return portion.

7. The check valve of any of claims 1-4, wherein the resilient valve body is a rubber valve body.

8. The one-way valve of any one of claims 1 to 4, wherein the housing further comprises a mating end connected to a side of the connecting end facing away from the outlet end, an end of the connector extending through the mating end.

9. The check valve as claimed in claim 8, wherein a clamping table is formed on an outer wall of one end of the connector, a clamping groove is formed on an inner wall of the mating end, and the clamping table is clamped in the clamping groove; or

10. A cleaning system, comprising:

cleaning the spray head;

a water pump; and

a one-way valve as defined in any one of claims 1 to 9, wherein the outlet end of said housing is connected to a said cleaning nozzle and the other end of said connector is connected to said water pump.