Gas conversion structure of multi-channel valve

Abstract

The utility model relates to the technical field of valve gas conversion structures, in particular to a multi-channel valve gas conversion structure which comprises a multi-channel valve body and a conversion mechanism capable of converting gas directions, the multi-channel valve body comprises a valve body, a gas inlet and an output port, the gas inlet is formed in one side of the multi-channel valve body, and the output port is formed in the other side of the multi-channel valve body. Two output ports are formed in the other side of the multi-channel valve main body, a switching mechanism is arranged in the valve body and comprises a reset spring, a push rod, a piston, a coil and a magnetic block, the push rod is slidably connected in the valve body, the piston which is annularly arranged is fixedly connected to the outer side of the push rod, the coil is fixedly connected in the valve body, and the magnetic block is arranged in the coil. According to the utility model, the service life of the sealing structure is prolonged through a double elastic force increasing structure arranged at the position of the sealing structure, and the worn rubber layer is easy to replace through a detachable structure arranged on the rubber layer.

Description

Technical Field

[0001] The utility model relates to the technical field of valve gas conversion structures, in particular to a multi-channel valve gas conversion structure. Background Art

[0002] A multi-channel valve is a device that combines multiple valves into a multi-channel valve body, which can be used to switch the fluid flow between different systems or equipment. The multi-channel valve gas conversion structure is designed through the coordination of multi-channel valve structure and switching blocking structure, so that the device can be installed in the connection between the gas pipe and the liquid pipe, and through convenient deduction, convenient switching of gas and liquid can be achieved.

[0003] When the common two-position three-way reversing valve on the market is in use, the piston at the push rod only relies on the outer rubber ring to increase the sealing effect. The structure is simple and has a good effect in the short term. After long-term use, the rubber layer wears and the elasticity decreases, resulting in poor sealing effect and short service life. Therefore, a multi-channel valve gas conversion structure is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a multi-channel valve gas conversion structure to solve the problem of low service life of the rubber layer.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-channel valve gas conversion structure comprises a multi-channel valve body and a conversion mechanism for converting the direction of gas, the multi-channel valve body comprising a valve body, an air inlet and an outlet, an air inlet is provided on one side of the multi-channel valve body, and two outlets are provided on the other side of the multi-channel valve body, a conversion mechanism is provided in the valve body, the conversion mechanism comprises a reset spring, a push rod, a piston, a coil and a magnet, a push rod is slidably connected to the valve body, a piston arranged in an annular shape is fixedly connected to the outside of the push rod, a coil is fixedly connected to the valve body, a magnet is fixedly connected to the outside of one end of the push rod, a reset spring is provided between the valve body and the other end of the push rod, a sealing structure is provided on the outside of the piston, the sealing structure comprises a rubber layer, a sponge layer and an elastic block, a sponge layer for increasing elastic force is fixedly connected to the outside of the piston, and a rubber layer folded into a ring shape is tightly fitted to the outside of the sponge layer.

[0007] Preferably, an elastic block for increasing elastic force is provided in the sponge layer, and the cross-section of the elastic block is elliptical.

[0008] Preferably, a limiting ring is fixedly connected to the outer side of the push rod, and the limiting ring and the sponge layer fit tightly.

[0009] Preferably, a disassembly structure is provided at the rubber layer, and the disassembly structure comprises a fixing belt and Velcro.

[0010] Preferably, one end of the rubber layer arranged in a strip shape is fixedly connected to a flexibly arranged fixing belt, the inner side of the fixing belt and the inner side of the other end of the rubber layer are both fixedly connected to Velcro, and the inner side of the fixing belt and the Velcro on the inner side of the other end of the rubber layer are tightly fitted.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, through the multi-channel valve main body, valve body, air inlet, air outlet, conversion mechanism, reset spring, push rod, piston, coil, magnetic block and sealing structure, the user can control the power on and off of the coil, so as to control the gas to flow out from one of the outlets or the other outlet; through the rubber layer, sponge layer and elastic block, the sponge layer is wrapped between the rubber layer and the piston, thereby increasing the elastic force of the rubber layer; through the plurality of elastic blocks with elliptical cross-sections arranged in the sponge layer, the elastic force of the rubber layer is further increased; when the elastic force of the rubber layer weakens, the elastic force of the sponge layer and the elastic block still enables the rubber layer to block the outlet, thereby increasing the practical life of the sealing structure; through the limit rings arranged on both sides of the piston, the sealing structure is made more stable when moving left and right; through the disassembly structure, fixing belt and Velcro, the Velcro makes the fixing belt and the rubber layer in a detachable state, thereby facilitating the replacement of the worn rubber layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic cross-sectional view of the sealing structure of the utility model.

[0015] In the figure: 1. multi-channel valve body; 11. valve body; 12. air inlet; 13. air outlet; 2. conversion mechanism; 21. return spring; 22. push rod; 23. piston; 24. coil; 25. magnetic block; 3. sealing structure; 31. rubber layer; 32. sponge layer; 33. elastic block; 4. limiting ring; 5. disassembly structure; 51. fixing belt; 52. Velcro. DETAILED DESCRIPTION

[0016] 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 in 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.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0019] See also Figure 1-2 , the utility model provides a technical solution:

[0020] A multi-channel valve gas conversion structure, comprising a multi-channel valve body 1 and a conversion mechanism 2 for converting the direction of gas, the multi-channel valve body 1 comprising a valve body 11, an air inlet 12 and an outlet 13, one side of the multi-channel valve body 1 is provided with an air inlet 12, and the other side of the multi-channel valve body 1 is provided with two outlets 13, the valve body 11 is provided with a conversion mechanism 2, the conversion mechanism 2 comprises a reset spring 21, a push rod 22, a piston 23, a coil 24 and a magnetic block 25, the valve body 11 is slidably connected with the push rod 22, the outer side of the push rod 22 is fixedly connected with a piston 23 arranged in an annular shape, the valve body 11 is fixedly connected with the coil 2 4. A magnetic block 25 is fixedly connected to the outer side of one end of the push rod 22, a return spring 21 is arranged between the valve body 11 and the other end of the push rod 22, a sealing structure 3 is arranged on the outer side of the piston 23, the sealing structure 3 comprises a rubber layer 31, a sponge layer 32 and an elastic block 33, a sponge layer 32 for increasing elastic force is fixedly connected to the outer side of the piston 23, a strip-shaped rubber layer 31 bent into a ring is tightly attached to the outer side of the sponge layer 32, the service life of the sealing structure 3 is increased by the double elastic force increasing structure arranged at the sealing structure 3, and the worn rubber layer 31 is easy to replace by the disassembly structure 5 arranged on the rubber layer 31.

[0021] An elastic block 33 for increasing elastic force is provided in the sponge layer 32. The cross-section of the elastic block 33 is elliptical, which increases the elasticity of the sealing structure 3 and thus increases its service life. A limit ring 4 is fixedly connected to the outer side of the push rod 22. The limit ring 4 and the sponge layer 32 fit tightly together, making the sealing structure 3 more stable when moving left and right. A disassembly structure 5 is provided at the rubber layer 31. The disassembly structure 5 includes a fixing belt 51 and a Velcro 52, which is convenient for replacing the worn rubber layer 31 that has been used for a long time. A flexible fixing belt 51 is fixedly connected to one end of the rubber layer 31 that is arranged in a strip shape, and the inner side of the fixing belt 51 and the inner side of the other end of the rubber layer 31 are both fixedly connected with the Velcro 52. The inner side of the fixing belt 51 and the Velcro 52 on the inner side of the other end of the rubber layer 31 fit tightly together, which is convenient for disassembly and assembly of the rubber layer 31.

[0022] Working process: When the multi-channel valve gas conversion structure is in use, first place the multi-channel valve body 1 in a suitable position. In order to achieve the outflow of gas from a specific output port 13, the user achieves this by turning off and on the coil 24. When the coil 24 is energized, the coil 24 generates magnetism, and generates a magnetic attraction with the magnetic block 25 on the outside of the push rod 22, driving the push rod 22 to move left as a whole. At this time, one of the pistons 23 on the outside of the push rod 22 and the sealing structure 3 on the outside of the piston 23 block the output port 13 on the right side, and the gas enters from the air inlet 12 and flows out from the output port 13 on the left side. When the coil 24 is turned off, the reset spring 21 drives the push rod 22 to move right as a whole. At this time, another piston 23 on the outside of the push rod 22 and the sealing structure 3 on the outside of the piston 23 block the output port 13 on the left side, and the gas flows out from the air inlet 12. After entering, it flows out from the output port 13 on the right side. The sponge layer 32 and the elastic block 33 in the sealing structure 3 increase the overall elastic force of the sealing structure 3, thereby increasing the service life of the sealing structure 3. When the rubber layer 31 is worn out after long-term use, the user disassembles the valve body 11, and then holds the fixing belt 51 and tears off one end of it. The Velcro 52 on the inside of the fixing belt 51 and the Velcro 52 embedded at one end of the rubber layer 31 are separated, and the strip-shaped rubber layer 31 can be removed at this time, and then a new rubber layer 31 is wrapped around the outside of the sponge layer 32 and fixed by the Velcro 52. The double elastic force increasing structure set at the sealing structure 3 increases the service life of the sealing structure 3, and the disassembly structure 5 set on the rubber layer 31 makes it easy to replace the worn rubber layer 31.

[0023] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-channel valve gas conversion structure, comprising a multi-channel valve body (1) and a conversion mechanism (2) for converting the direction of gas, characterized in that: The multi-channel valve body (1) comprises a valve body (11), an air inlet (12) and an outlet (13); one side of the multi-channel valve body (1) is provided with an air inlet (12); the other side of the multi-channel valve body (1) is provided with two outlets (13); a conversion mechanism (2) is provided inside the valve body (11); the conversion mechanism (2) comprises a return spring (21), a push rod (22), a piston (23), a coil (24) and a magnet (25); a push rod (22) is slidably connected inside the valve body (11); and a piston (23) arranged in an annular shape is fixedly connected to the outside of the push rod (22). 23), a coil (24) is fixedly connected inside the valve body (11), a magnetic block (25) is fixedly connected to the outer side of one end of the push rod (22), a return spring (21) is provided between the valve body (11) and the other end of the push rod (22), a sealing structure (3) is provided on the outer side of the piston (23), the sealing structure (3) comprises a rubber layer (31), a sponge layer (32) and an elastic block (33), a sponge layer (32) for increasing elastic force is fixedly connected to the outer side of the piston (23), and a rubber layer (31) bent into a ring shape is tightly attached to the outer side of the sponge layer (32).

2. A multi-channel valve gas conversion structure according to claim 1, characterized in that: An elastic block (33) for increasing elastic force is arranged inside the sponge layer (32); the elastic block (33) has an elliptical cross section.

3. A multi-channel valve gas conversion structure according to claim 1, characterized in that: The outer side of the push rod (22) is fixedly connected to a limiting ring (4), and the limiting ring (4) and the sponge layer (32) are tightly fitted.

4. A multi-channel valve gas conversion structure according to claim 1, characterized in that: A disassembly structure (5) is provided at the rubber layer (31), and the disassembly structure (5) comprises a fixing belt (51) and a Velcro (52).

5. The multi-channel valve gas conversion structure according to claim 1, characterized in that: One end of the strip-shaped rubber layer (31) is fixedly connected to a flexible fixing belt (51), and the inner side of the fixing belt (51) and the inner side of the other end of the rubber layer (31) are both fixedly connected to a Velcro (52), and the inner side of the fixing belt (51) and the Velcro (52) on the inner side of the other end of the rubber layer (31) are tightly fitted.

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