One-way guide assembly and one-way guide valve composed of the same

Abstract

The present invention relates to a one-way conducting component, comprising: a one-way conducting end and an open end opposite to the one-way conducting end, the one-way conducting end is flat, a cavity is formed inside the one-way conducting component, and the cavity forms an opening at the open end; the one-way conducting component gradually closes from the open end to the one-way conducting end, and a limit component is provided on the end face of the one-way conducting end. It can ensure that the one-way conducting component has a better effect of preventing backflow. Since the limit component is formed on the end face of the one-way conducting end, when the fluid flows from the open end to the one-way conducting end and the normally closed flat slit of the one-way conducting end is opened by the fluid pressure, the size of the opening of the flat slit can be limited by the limit component, thereby further limiting the flow through the valve.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid control, in particular to a one-way conducting component and a one-way conducting valve composed of the component. Background Art

[0002] The wiper system is an essential safety device for cars. It can promptly remove the rain and snow on the car windows in rainy and snowy weather, or promptly remove the muddy water splashed on the car windows when driving on muddy roads, so as to ensure the driver's sight and further ensure the safety of the vehicle. The wiper system is mainly composed of a washer liquid tank, a water pump, a motor, a washer liquid pipeline, a nozzle, and a traditional wiper. The driver controls the wiper system through the in-car control device to clean the car windows in time.

[0003] In the current traditional technology, the water pump and the wiper motor are started at the same time, but because there is a washing liquid pipeline between the water pump and the nozzle, the washing liquid reaches the front windshield through the nozzle later than the wiper movement. This will cause damage to the wiper and the front windshield. Therefore, a check valve needs to be installed between the washing liquid tank and the washing liquid pipeline so that the washing liquid can reach the front windshield through the nozzle in time. The commonly used check valve is: spring steel ball one-way valve.

[0004] In the above-mentioned conventional technology, a spring steel ball one-way valve is used for one-way conduction. The spring steel ball one-way valve may have defects such as excessive noise and poor backflow prevention effect during use. Summary of the invention

[0005] Based on this, it is necessary to provide a one-way guide component and a one-way guide valve composed of the one-way guide component to address the defects of the spring steel ball one-way valve, such as excessive noise and poor backflow prevention effect.

[0006] The present invention provides a one-way conducting component comprising: a one-way conducting end and an open end opposite to the one-way conducting end, wherein the one-way conducting end is flat, a cavity is formed inside the one-way conducting component, and the cavity forms an opening at the open end; the one-way conducting component gradually closes from the open end to the one-way conducting end, and a limit assembly is arranged on the end face of the one-way conducting end.

[0007] Furthermore, a normally closed flat slit is formed along the flat end of the one-way conducting end to the other end.

[0008] Furthermore, the limiting component is a limiting surface formed by extending outwardly along the end surface of the one-way conducting end.

[0009] Furthermore, the limiting component is a limiting surface formed along the end surface of the unidirectional conductive end and parallel to the end surface of the opening end.

[0010] Furthermore, the one-way conducting component is made of silicone rubber.

[0011] The present invention also provides a one-way conducting valve comprising: any one of the above-mentioned one-way conducting components, an inlet valve body and an outlet valve body; the inlet valve body comprises an inlet end, a first connecting end and a fixing portion, and the fixing portion is circumferentially arranged on the outer wall of the first connecting end; the outlet valve body comprises an outlet end and a second connecting end; the one-way conducting component is arranged in the outlet valve body, and the one-way conducting end is close to the outlet end, the opening end is close to the second connecting end, and the opening end is connected to the inner wall of the second connecting end of the outlet valve body; the first connecting end of the inlet valve body extends into the second connecting end, the fixing portion abuts against the opening end, the fixing portion is connected to the inner wall of the second connecting end, and the first connecting end extends into the opening end.

[0012] Furthermore, the circumferential surface of the limiting surface of the one-way conductive component matches the shape and size of the inner wall of the second connecting end.

[0013] Furthermore, the outer wall of the opening end of the one-way conducting component matches the shape and size of the inner wall of the second connecting end; the outer wall of the fixing portion matches the shape and size of the inner wall of the second connecting end.

[0014] Further, the inlet valve body is made of polyformaldehyde; and / or the inlet valve body is made of polyformaldehyde.

[0015] Furthermore, the outer wall of the inlet end is provided with a first clamping portion; and the outer wall of the outlet end is provided with a second clamping portion.

[0016] The present invention sets a one-way conducting component. When the fluid flows from the open end to the one-way conducting end, the normally closed flat slit of the one-way conducting end is opened by the fluid pressure, and the fluid passes through the one-way conducting component. When the fluid flows from the one-way conducting end to the open end, since the normally closed flat slit is in a normally closed state, the fluid cannot pass through the one-way conducting component. Therefore, it can be ensured that the one-way conducting component has a better effect of preventing backflow. Since the end face of the one-way conducting end forms a limiting component, when the fluid flows from the open end to the one-way conducting end and the normally closed flat slit of the one-way conducting end is opened by the fluid pressure, the size of the flat slit opening can be limited by the limiting component, and the flow rate through the valve is further limited. The one-way conducting valve of the present invention is provided with a one-way conducting component, an inlet valve body and an outlet valve body. Since the one-way conducting component is made of silicone rubber, and the inlet valve body and the outlet valve body are made of polyoxymethylene, the effects of high temperature resistance, high pressure resistance, low noise and long service life can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a one-way conducting component provided in an embodiment of the present invention;

[0018] Figure 2 A schematic structural diagram of a one-way conducting valve provided in an embodiment of the present invention.

[0019] Figure numerals: 100 is a one-way conducting component, 110 is a one-way conducting end, 120 is an opening end, 130 is a cavity, 140 is a limit component, 150 is a normally closed flat gap, 200 is an inlet valve body, 210 is an inlet end, 220 is a first connecting end, 230 is a fixing part, 300 is an outlet valve body, 310 is an outlet end, and 320 is a second connecting end. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The embodiment of the present invention discloses a one-way conducting component including an open end and a one-way conducting end, wherein the one-way conducting end is normally closed. When a fluid flows in from the open end, the one-way conducting end is opened by the pressure of the fluid on the one-way conducting end, and the fluid passes through. When the fluid flows through the one-way conducting end, the fluid cannot pass through because the one-way conducting end is normally closed. Such a structure enables the one-way conducting component to have a better effect of preventing backflow. A limit position component is provided at the one-way conducting end, which is used to limit the opening size of the one-way conducting end after the one-way conducting end is opened when the fluid flows in from the open end, so as to prevent the valve from being damaged due to excessive fluid pressure caused by excessive opening when the one-way conducting component is used in a valve.

[0022] See also Figure 1 , Figure 1 A schematic structural diagram of a one-way conducting component provided in an embodiment of the present invention.

[0023] like Figure 1 As shown, a one-way conductive component includes: a one-way conductive end 110 and an open end 120 opposite to the one-way conductive end 110, the one-way conductive end 110 is flat, a cavity 130 is formed inside the one-way conductive component 100, and the cavity 130 forms an opening at the open end 120; the one-way conductive component 100 gradually closes from the open end 120 to the one-way conductive end 110, and a limit assembly 140 is set on the end face of the one-way conductive end 110.

[0024] Specifically, the one-way conducting component 100 includes a one-way conducting end 110 and an open end 120, and a normally closed flat slit 150 is formed from one flat end to the other end of the one-way conducting end 110. The normally closed flat slit 150 is formed by gradually closing from the open end 120 to the one-way conducting end 110. The normally closed flat slit 150 is in a closed state under normal conditions, and is used to prevent the fluid from flowing from the one-way conducting end 110 to the open end 120. When the open end 120 is connected to an external fluid, the fluid enters the internal cavity 130 of the one-way conducting component 100 from the open end 120. Since the normally closed flat slit 150 is formed by gradually closing from the open end 120 to the one-way conducting end 110, when the fluid enters the cavity 130, the fluid forms pressure on the inner wall of the one-way conducting component 100, so that the normally closed flat slit 150 of the one-way conducting end 110 is opened, and the fluid flows through the one-way conducting component 100. When the one-way conducting end 110 is connected to an external fluid, the fluid forms pressure on the outer wall of the one-way conducting end 110, so that the normally closed flat slit 150 of the one-way conducting end 110 is closed more tightly, thereby achieving the purpose of one-way conduction and preventing fluid backflow. A limiting component 140 is also provided on the end face of the one-way conducting end 110. The limiting component 140 is a limiting surface extending outwardly along the end face of the one-way conducting end 110. More specifically, the limiting component 140 is a limiting surface formed along the end face of the one-way conducting end 110 and parallel to the end face of the open end 120. The limiting component 140 of the present invention only needs to form a limiting surface, and the direction of the limiting surface is not specifically limited. The limit assembly 140 is used to limit the size of the opening when the fluid enters the cavity 130 of the one-way guide assembly 100 from the opening end 120, and forms pressure on the inner wall of the one-way guide end 110 to open the normally closed flat slit 150 of the one-way guide end 110, so as to prevent the valve from being damaged by excessive fluid pressure due to excessive opening when the one-way guide assembly 100 is used in a valve. The limit assembly 140 is also used to be pressed by an external device to close the normally closed flat slit 150 more tightly, and the normally closed flat slit 150 opens when the pressure of the fluid on the inner wall of the one-way guide end 110 is 0.1 bar-0.4 bar; and to prevent the normally closed flat slit 150 from opening when the pressure of the fluid on the inner wall of the one-way guide end 110 is too small. The one-way guide assembly 100 is made of silicone rubber.

[0025] See also Figure 2 , Figure 2 A schematic structural diagram of a one-way conducting valve provided in an embodiment of the present invention.

[0026] like Figure 2As shown, a one-way valve comprises any one of the one-way valve components 100, an inlet valve body 200 and an outlet valve body 300; the inlet valve body 200 comprises an inlet end 210, a first connecting end 220 and a fixing portion 230, the fixing portion 230 being arranged circumferentially on the outer wall of the first connecting end 220; the outlet valve body 300 comprises an outlet end 310 and a second connecting end 320; the one-way valve component 100 is arranged in the outlet valve body 300, and the one-way valve component 100 is arranged in the outlet valve body 300, and the one-way valve body 200 comprises an inlet end 210, a first connecting end 220 and a fixing portion 230, the fixing portion 230 being arranged circumferentially on the outer wall of the first connecting end 220; the outlet valve body 300 comprises an outlet end 310 and a second connecting end 320; the one-way valve component 100 is arranged in the outlet valve body 300, and the one-way valve body 2 ... The guiding end 110 is close to the outlet end 310, the opening end 120 is close to the second connection end 320, and the opening end 120 is connected to the inner wall of the second connection end 320 of the outlet valve body 300; the first connection end 220 of the inlet valve body 200 extends into the second connection end 320, the fixing portion 230 abuts against the opening end 120, the fixing portion 230 is connected to the inner wall of the second connection end 320, and the first connection end 220 extends into the opening end 120.

[0027] Specifically, the one-way valve is provided with an inlet valve body 200 and an outlet valve body 300, and the one-way conducting assembly 100 is provided in the outlet valve body 300, the one-way conducting end 110 of the one-way conducting assembly 100 is close to the outlet end 310 of the outlet valve body 300, and the open end 120 of the one-way conducting assembly 100 is close to the second connecting end 320 of the outlet valve body 300. The first connecting end 220 of the inlet valve is extended into the second connecting end 320 of the outlet valve body 300, and the fixing portion 230 of the inlet valve body 200 is against the open end 120 of the one-way conducting assembly 100, so that the connection between the inlet valve body 200, the outlet valve body 300 and the one-way conducting assembly 100 is more tightly connected. The first connecting end 220 of the inlet valve body 200 is extended into the cavity 130 of the one-way conducting assembly 100. The circumferential surface of the limiting surface of the one-way conducting component 100 matches the shape and size of the inner wall of the second connecting end 320; specifically, the inner wall of the second connecting end 320 can be a quadrilateral, a triangle or any irregular shape, as long as the circumferential surface of the limiting surface is completely in contact with the inner wall of the second connecting end 320. The outer wall of the opening end 120 of the one-way conducting component 100 matches the shape and size of the inner wall of the second connecting end 320; specifically, the inner wall of the second connecting end 320 can be a quadrilateral, a triangle or any irregular shape, as long as the outer wall of the opening end 120 of the one-way conducting component 100 is completely in contact with the inner wall of the second connecting end 320. The outer wall of the fixing portion 230 matches the shape and size of the inner wall of the second connecting end 320; specifically, the inner wall of the second connecting end 320 can be a quadrilateral, a triangle or any irregular shape, as long as the outer wall of the fixing portion 230 is completely in contact with the inner wall of the second connecting end 320. The outer wall of the inlet end 210 is provided with a first clamping part; the outer wall of the outlet end 310 is provided with a second clamping part. The first clamping part and the second clamping part are used to connect external pipelines. The first clamping part provided on the outer wall of the inlet end 210 is used to connect the water inlet pipeline; the second clamping part provided on the outer wall of the outlet end 310 is used to connect the water outlet pipeline. The inlet valve body 200 is made of polyformaldehyde; the inlet valve body 200 is made of polyformaldehyde. The one-way guide assembly 100 is made of silicone rubber, and the inlet valve body 200 and the outlet valve body 300 are made of polyformaldehyde, which will not produce odor and improve the air quality of the use environment. That is, when the one-way guide valve is used in the automobile wiper system, the air quality in the automobile can be improved. In addition, the one-way guide assembly 100 is made of silicone rubber, and the inlet valve body 200 and the outlet valve body 300 are made of polyformaldehyde, which is light in weight and can better achieve the lightweight of the automobile.

[0028] When the one-way guide valve of this embodiment is subjected to relevant performance tests, the test results are shown in the following table:

[0029]

[0030] It can be seen from the above table that the one-way guide valve provided in this embodiment, when the one-way guide valve is matched with an external pipeline, the force for separating the one-way guide valve from the external pipeline should be greater than 120N, and the actual measurement of the present invention is 170N, which meets the standard.

[0031] The high temperature resistance of the one-way guide valve is to be placed in a high temperature environment of 120° C. for more than 72 hours. After the experiment, the one-way guide valve has no cracking phenomenon and meets the standard.

[0032] The one-way guide valve is placed in a low temperature environment of -40°C for 12 hours and then in a high temperature environment of 80°C for 12 hours, alternating for 10 cycles. The one-way guide valve has no cracking or leakage and meets the standards.

[0033] When the one-way valve is used in the automobile wiper system, in the durability test of 8000 cycles of the water pump on for 4 seconds and off for 26 seconds, the one-way valve has no cracking and leakage. Specifically, the 8000 cycles are divided into four groups of cycle tests, i.e., first, 2000 cycles are performed at room temperature, then 2000 cycles are performed at 65°C, then 2000 cycles are performed at -12°C, and finally, 2000 cycles are performed at room temperature. The one-way valve has no cracking and leakage, and meets the standard.

[0034] The present invention sets a one-way conducting component. When the fluid flows from the open end to the one-way conducting end, the normally closed flat slit of the one-way conducting end is opened by the fluid pressure, and the fluid passes through the one-way conducting component. When the fluid flows from the one-way conducting end to the open end, since the normally closed flat slit is in a normally closed state, the fluid cannot pass through the one-way conducting component. Therefore, it can be ensured that the one-way conducting component has a better effect of preventing backflow. Since the end face of the one-way conducting end forms a limiting component, when the fluid flows from the open end to the one-way conducting end and the normally closed flat slit of the one-way conducting end is opened by the fluid pressure, the size of the flat slit opening can be limited by the limiting component, and the flow rate through the valve is further limited. The one-way conducting valve of the present invention is provided with a one-way conducting component, an inlet valve body and an outlet valve body. Since the one-way conducting component is made of silicone rubber, and the inlet valve body and the outlet valve body are made of polyoxymethylene, the effects of high temperature resistance, high pressure resistance, low noise and long service life can be achieved. Moreover, when the one-way valve is connected to other pipelines, it has good anti-detachment ability, which improves the durability of other pipelines. Furthermore, polyoxymethylene and silicone rubber will not generate pollution during production and use, and have good environmental performance.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A one-way conducting valve, characterized in that: include: One-way guide assembly, inlet valve body and outlet valve body; The one-way conducting component comprises: a one-way conducting end and an open end opposite to the one-way conducting end, the one-way conducting end is flat, a cavity is formed inside the one-way conducting component, and the cavity forms an opening at the open end; the one-way conducting component gradually closes from the open end to the one-way conducting end, and a limit component is arranged on the end surface of the one-way conducting end; the limit component is a limit surface formed by extending outwardly from the end surface of the one-way conducting end; the limit surface is parallel to the end surface of the open end; A normally closed flat gap is formed along the flat end of the one-way conducting end to the other end; The one-way conductive component is made of silicone rubber; The inlet valve body comprises an inlet end, a first connecting end and a fixing portion, wherein the fixing portion is arranged along the circumferential direction on the outer wall of the first connecting end; The outlet valve body comprises an outlet end and a second connecting end; The one-way conducting component is arranged in the outlet valve body, and the one-way conducting end is close to the outlet end, the opening end is close to the second connecting end, and the opening end is connected to the inner wall of the second connecting end of the outlet valve body; the first connecting end of the inlet valve body extends into the second connecting end, the fixing part abuts against the opening end, the fixing part is connected to the inner wall of the second connecting end, and the first connecting end extends into the opening end.

2. The one-way valve according to claim 1, characterized in that: The circumferential surface of the limiting surface of the one-way conductive component matches the shape and size of the inner wall of the second connecting end.

3. The one-way valve according to claim 1, characterized in that: The outer wall of the opening end of the one-way conductive component matches the shape and size of the inner wall of the second connecting end; The outer wall of the fixing portion matches the inner wall of the second connecting end in shape and size.

4. The one-way conducting valve according to claim 1, characterized in that: The inlet valve body is made of polyoxymethylene; and / or The outlet valve body is made of polyoxymethylene.

5. The one-way conducting valve according to claim 1, characterized in that: The outer wall of the inlet end is provided with a first clamping portion; The outer wall of the outlet end is provided with a second clamping portion.

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