Quickly-assembled one-way valve structure

Abstract

The utility model relates to a one-way valve structure capable of being quickly assembled. The one-way valve structure comprises an end cover and a valve body, a second circulation opening and a plurality of first circulation openings are formed in the valve body, and a liquid flowing channel is formed in the valve body and located between the second circulation opening and the first circulation openings. A valve element assembly used for sealing the liquid flowing channel is connected into the end cover in a sliding mode, and a spring used for abutting against the valve element assembly to move towards the liquid flowing channel is arranged between the valve element assembly and the end cover. Opening and closing of the one-way valve are achieved in the mode that fluid overcomes the elasticity of the spring to push the valve element assembly to move, the end cover, the spring, the valve element assembly and the valve body can be independently machined and then rapidly assembled to obtain the one-way valve, assembly is convenient, time is saved, and the one-way valve is simple in structure and easy to machine and obtain.

Description

Technical Field

[0001] The utility model belongs to the technical field of flow valves, and in particular relates to a fast-assembled one-way valve structure. Background Art

[0002] The thermal management system is a very important component in new energy vehicles. The one-way valve in the thermal management system is an important component for controlling the flow direction of the coolant or heating liquid. The one-way valve in the prior art is generally composed of an end cover, a valve body, and a valve core arranged inside the end cover and the valve body. The end cover and the valve body are mostly connected by welding or screw fastening. There are many processing steps when assembling the end cover and the valve body, and the processing time is long, which brings inconvenience to production and processing. Utility Model Content

[0003] The purpose of the present invention is to provide a quick-assembly one-way valve structure in order to solve the above-mentioned problems, aiming to solve the technical problem that in the prior art one-way valves, the end cover and the valve body are mostly connected by welding and screw fastening, and there are many processing steps when assembling the end cover and the valve body, which consumes a long processing time and brings inconvenience to production and processing.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] A quick-assembly one-way valve structure comprises an end cover and a valve body connected to each other;

[0006] The valve body is provided with a second flow port and a plurality of first flow ports, and the valve body is provided with a liquid flow channel between the second flow port and the first flow port;

[0007] A valve core assembly for sealing a liquid flow channel is slidably connected inside the end cover, and a spring for pressing the valve core assembly to move toward the liquid flow channel is arranged between the valve core assembly and the end cover.

[0008] As a further optimization solution of the utility model, a mounting groove is provided inside the end cover, and a plurality of clamping steps are provided on the inner wall of the mounting groove;

[0009] A plurality of buckles are provided on the top of the valve body, and one end of the buckle away from the valve body is a protrusion matching the clamping step, and the buckles are evenly distributed on the top of the valve body;

[0010] The top of the valve body is provided with a plurality of limiting ribs which are clamped in the installation groove, and the limiting ribs are evenly distributed on the top of the valve body.

[0011] As a further optimization solution of the utility model, the valve core assembly includes a sealing portion and a central guide column arranged on the sealing portion, and the spring is connected to the sealing portion and sleeved on the outside of the central guide column;

[0012] A guide column moving channel for the central guide column to slide up and down is provided inside the end cover, and a spring limiting step for pressing and limiting the spring is provided at the inlet end of the guide column moving channel.

[0013] As a further optimization solution of the utility model, the valve core assembly also includes a plurality of guide ribs arranged on the top of the sealing portion and surrounding the periphery of the central guide column;

[0014] A guide groove for limiting the movement of the guide rib is provided on the inner wall of the limiting rib.

[0015] As a further optimization solution of the utility model, the outer wall of the sealing portion is an inclined surface and is provided with a second O-ring groove, and a valve core O-ring is provided inside the second O-ring groove.

[0016] As a further optimization solution of the utility model, a sealing inclined surface matching the inclined surface of the outer wall of the sealing part and the valve core O-ring is provided on the inner wall of the liquid flow channel.

[0017] As a further optimization solution of the utility model, an O-ring groove 1 is opened on the outer wall of the end cover, and an end cover O-ring is arranged inside the O-ring groove 1.

[0018] As a further optimization solution of the utility model, an O-ring groove three is opened on the outer wall of the valve body, and a valve body O-ring is arranged inside the O-ring groove three.

[0019] The beneficial effects of the utility model are:

[0020] 1) The opening and closing of the one-way valve in the utility model is achieved by the fluid overcoming the elastic force of the spring to push the valve core assembly to move, and the end cover, spring, valve core assembly, and valve body can be independently processed and then quickly assembled to obtain the one-way valve, which is convenient to assemble and saves time, and has a simple structure and is easy to process;

[0021] 2) The utility model can limit the upward and downward movement of the guide rib through the guide groove, thereby preventing the valve core assembly from being misaligned during movement, thereby allowing the valve core assembly to move up and down stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an exploded view of the overall structure of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the end cover of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the valve core of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the valve body of the utility model.

[0026] Figure 5 It is a schematic diagram of the structure of the utility model in the open state and the closed state (C is the matching connection between the buckle and the clamping step).

[0027] In the figure: 1. end cover; 1-1. snap-fit ​​step; 1-2. guide column moving channel; 1-3. spring limit step; 1-4. O-ring groove one; 1-5. limit surface; 2. end cover O-ring; 3. spring; 4. valve core assembly; 4-1. center guide column; 4-2. guide rib; 4-3. O-ring groove two; 4-4. upper end surface; 4-5. lower end surface; 5. valve core O-ring; 6. valve body; 6-1. buckle; 6-2. liquid flow channel; 6-3. O-ring groove three; 6-5. limit rib; 6-6. upper end surface of limit rib; 6-7. guide groove; 6-8. sealing slope; 7. valve body O-ring; 8. flow port one; 9. flow port two. DETAILED DESCRIPTION

[0028] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0029] like Figure 1-5 As shown, a quick-assembly one-way valve structure comprises an end cover 1 and a valve body 6 connected to each other;

[0030] The valve body 6 is provided with a second flow port 9 and a plurality of first flow ports 8, and a liquid flow channel 6-2 is provided inside the valve body 6 between the second flow port 9 and the first flow port 8;

[0031] A valve core assembly 4 for sealing the liquid flow channel 6 - 2 is slidably connected inside the end cover 1 , and a spring 3 for pressing the valve core assembly 4 to move toward the liquid flow channel 6 - 2 is provided between the valve core assembly 4 and the end cover 1 .

[0032] Preferably, a mounting groove is provided inside the end cover 1, and a plurality of clamping steps 1-1 are provided on the inner wall of the mounting groove;

[0033] The top of the valve body 6 is provided with a plurality of buckles 6-1, one end of the buckle 6-1 away from the valve body 6 is a protrusion matching the clamping step 1-1, and the buckles 6-1 are evenly distributed on the top of the valve body 6;

[0034] The top of the valve body 6 is provided with a plurality of limiting ribs 6 - 5 which are clamped in the inside of the installation groove, and the limiting ribs 6 - 5 are evenly distributed on the top of the valve body 6 .

[0035] It should be noted that, in this embodiment, after the end cover 1 and the valve body 6 are connected by the buckle 6-1 and the snap-on step 1-1, only a small gap is retained between the upper end surface 6-6 of the limiting rib 6-5 and the limiting surface 1-5 of the mounting groove. After assembly, there will be no obvious up and down displacement between the end cover 1 and the valve body 6 and the circumference can be effectively tightened.

[0036] Preferably, the valve core assembly 4 includes a sealing portion and a central guide column 4-1 disposed on the sealing portion, and the spring 3 is connected to the sealing portion and sleeved on the outside of the central guide column 4-1;

[0037] A guide column moving channel 1-2 for the central guide column 4-1 to slide up and down is provided inside the end cover 1, and a spring limiting step 1-3 for pressing and limiting the spring 3 is provided at the inlet end of the guide column moving channel 1-2.

[0038] It should be noted that, in the present embodiment, the upper end of the spring 3 is clamped and pressed against the spring limiting step 1-3, and the lower end is connected to the upper end surface 4-4. In some other embodiments, the upper and lower ends of the spring 3 can also be welded and screwed to the spring limiting step 1-3 and the upper end surface 4-4 respectively. When naturally not subject to liquid pressure, the spring 3 can press the sealing part against the inside of the liquid flow channel 6-2 to form a sealing effect on the liquid flow channel 6-2.

[0039] Preferably, the valve core assembly 4 further includes a plurality of guide ribs 4-2 disposed on the top of the sealing portion and surrounding the periphery of the central guide column 4-1;

[0040] The inner wall of the limiting rib 6-5 is provided with a guide groove 6-7 for limiting the movement of the guide rib 4-2.

[0041] It should be noted that, in this embodiment, the guide groove 6-7 limits the upward and downward movement of the guide rib 4-2 to prevent the valve core assembly 4 from being misaligned during movement.

[0042] Preferably, the outer wall of the sealing portion is an inclined surface and is provided with an O-ring groove 4 - 3 , and a valve core O-ring 5 is provided inside the O-ring groove 4 - 3 .

[0043] Preferably, a sealing slope 6-8 matching the outer wall slope of the sealing portion and the valve core O-ring 5 is provided on the inner wall of the liquid flow channel 6-2, thereby achieving good sealing performance.

[0044] Preferably, an O-ring groove 1-4 is provided on the outer wall of the end cover 1, and an end cover O-ring 2 is provided inside the O-ring groove 1-4 to prevent the end cover 1 and the valve body 6 from moving up and down after assembly.

[0045] Preferably, an O-ring groove 6-3 is provided on the outer wall of the valve body 6, and a valve body O-ring 7 is provided inside the O-ring groove 6-3 to prevent the end cover 1 and the valve body 6 from moving up and down after assembly.

[0046] When using, Figure 5 As shown in the left figure, when the liquid pressure acting on the lower end surface 4-5 of the sealing part of the valve core assembly 4 can overcome the elastic force of the spring 3, the liquid will push the sealing part, the central guide column 4-1, and the guide rib 4-2 to move upward. At this time, the liquid flow channel 6-2 is not blocked by the sealing part, and the flow port 2 9 and the flow port 1 8 are interconnected. At this time, the one-way valve is in an open state, and the liquid can be transported out through the flow port 2 9, the liquid flow channel 6-2, and the flow port 1 8;

[0047] When using, Figure 5 As shown in the right figure, when no liquid flows into the flow port 2 9 anymore, there is no upward liquid pressure on the lower end surface 4-5 of the sealing portion of the valve core assembly 4, and the sealing portion, the center guide column 4-1, and the guide rib 4-2 will move down under the elastic force of the spring 3 and be clamped in the liquid flow channel 6-2. At this time, the valve core O-ring 5 and the sealing slope 6-8 fit closely with each other, thereby blocking the connection between the flow port 2 9 and the flow port 1 8, thereby forming the function of sealing the liquid flow channel 6-2. At this time, the one-way valve is in a closed state, and the liquid cannot flow from the flow port 1 8 to the flow port 2 9.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A quick-assembly one-way valve structure, characterized in that: It comprises an end cover (1) and a valve body (6) which are connected to each other; The valve body (6) is provided with a second flow port (9) and a plurality of first flow ports (8); a liquid flow channel (6-2) is provided inside the valve body (6) between the second flow port (9) and the first flow port (8); A valve core assembly (4) for sealing a liquid flow channel (6-2) is slidably connected inside the end cover (1), and a spring (3) for pressing the valve core assembly (4) to move toward the liquid flow channel (6-2) is provided between the valve core assembly (4) and the end cover (1).

2. A quick-assembly one-way valve structure according to claim 1, characterized in that: The end cover (1) is provided with a mounting groove inside, and the inner wall of the mounting groove is provided with a plurality of clamping steps (1-1); A plurality of buckles (6-1) are provided on the top of the valve body (6); one end of the buckle (6-1) away from the valve body (6) is a protrusion matching the buckling step (1-1); and the buckles (6-1) are evenly distributed on the top of the valve body (6); The top of the valve body (6) is provided with a plurality of limiting ribs (6-5) which are clamped in the interior of the installation groove, and the limiting ribs (6-5) are evenly distributed on the top of the valve body (6).

3. A quick-assembly one-way valve structure according to claim 1, characterized in that: The valve core assembly (4) comprises a sealing portion and a central guide column (4-1) arranged on the sealing portion, and the spring (3) is connected to the sealing portion and sleeved on the outside of the central guide column (4-1); A guide column moving channel (1-2) for the central guide column (4-1) to slide up and down is provided inside the end cover (1), and a spring limiting step (1-3) for pressing and limiting the spring (3) is provided at the inlet end of the guide column moving channel (1-2).

4. A quick-assembly one-way valve structure according to claim 2, characterized in that: The valve core assembly (4) further comprises a plurality of guide ribs (4-2) arranged at the top of the sealing portion and surrounding the periphery of the central guide column (4-1); A guide groove (6-7) for limiting the movement of the guide rib (4-2) is provided on the inner wall of the limiting rib (6-5).

5. A quick-assembly one-way valve structure according to claim 3, characterized in that: The outer wall of the sealing portion is an inclined surface and is provided with a second O-ring groove (4-3), and a valve core O-ring (5) is provided inside the second O-ring groove (4-3).

6. A quick-assembly one-way valve structure according to claim 5, characterized in that: The inner wall of the liquid flow channel (6-2) is provided with a sealing inclined surface (6-8) matching the inclined surface of the outer wall of the sealing portion and the valve core O-ring (5).

7. A quick-assembly one-way valve structure according to claim 1, characterized in that: An O-ring groove (1-4) is provided on the outer wall of the end cover (1), and an end cover O-ring (2) is provided inside the O-ring groove (1-4).

8. A quick-assembly one-way valve structure according to claim 1, characterized in that: An O-ring groove three (6-3) is provided on the outer wall of the valve body (6), and a valve body O-ring (7) is provided inside the O-ring groove three (6-3).

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