Mute valve structure

Abstract

The utility model discloses a mute valve structure which comprises a valve body, the valve body is provided with an air inlet, a plurality of exhaust ports and a plurality of air outlets, each exhaust port corresponds to a first cavity in the valve body and is communicated with the corresponding first cavity, each air outlet corresponds to a second cavity in the valve body and is communicated with the corresponding second cavity. The first cavities are communicated with the corresponding second cavities, communicating holes are formed between the first cavities and the adjacent second cavities, the air inlets are communicated with the first cavities through the communicating holes respectively, the driving motors are installed on the valve body, the driving end of each driving motor is provided with a sealing valve block, and the sealing valve blocks are communicated with the first cavities through the communicating holes respectively. The sealing valve block is movably installed in the first cavity, and contact sealing faces are formed on the surfaces of the two opposite sides of the sealing valve block respectively and used for sealing the communicating hole or the conducting hole. The double-motor-driven mute valve structure is adopted, uninterrupted work is achieved, the working efficiency is improved while the working quality is guaranteed, and almost no noise exists in the whole working process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the valve field, concretely relates to a mute valve structure. BACKGROUND

[0002] Valve structure is widely used in various technical fields, which realizes the transmission control of different gas flow paths in different scenes by changing the path of gas. Common valve structures include two-position three-way valves, three-position four-way valves, four-position five-way valves, etc. In these applications, especially in the field of oxygen production, due to the high requirements for shock absorption and noise reduction, the performance of the valve structure is particularly important. Specifically, when compressed air enters the molecular sieve, oxygen needs to pass smoothly, and nitrogen needs to be released in time after adsorption saturation, and then nitrogen can continue to be adsorbed to ensure the continuity and efficiency of the oxygen production process.

[0003] The existing valve structure has the following main problems in use:

[0004] The valve structure usually adopts a complex driving mechanism, which is complicated to operate and inconvenient to control, making it difficult to meet the needs of rapid response and accurate control.

[0005] The valve structure produces a lot of noise during operation, which not only affects the user's experience, but also shortens the service life of the valve structure.

[0006] Single motor driving mode is low in efficiency, and the valve structure driven by a single motor has low working efficiency and poor control performance, making it difficult to achieve efficient gas transmission control.

[0007] Although the double-motor driving mode can improve the working efficiency to some extent, the overall structure is complex and large in size, which is not conducive to use in space-limited environments.

[0008] Taking the field of oxygen production as an example, this field has high requirements for shock absorption and noise reduction of the valve structure, and when compressed air enters the molecular sieve, oxygen needs to pass smoothly, and nitrogen needs to be released in time after adsorption saturation, and then nitrogen can continue to be adsorbed. Therefore, in order to meet the special needs of this field, the existing valve structure needs to be optimized in design and performance to realize uninterrupted oxygen production and ensure the stable operation and low noise of the equipment. UTILITY MODEL CONTENTS

[0009] To solve the above problems, the utility model provides a mute valve structure, which adopts a double-motor driven and mute valve structure to realize uninterrupted work, improve working efficiency while ensuring working quality, and almost no noise during the whole working process, improve user experience and facilitate use.

[0010] The utility model is realized by the following technical scheme: a mute valve structure, comprising:

[0011] The valve body is provided with an air inlet, a plurality of air outlets and a plurality of gas outlets. Each of the air outlets corresponds to a first chamber inside the valve body and is in communication with the corresponding first chamber. Each of the gas outlets corresponds to a second chamber inside the valve body and is in communication with the corresponding second chamber. The first chamber and the adjacent second chamber are provided with a communication hole. The air inlet is in communication with each of the first chambers through the communication hole.

[0012] A plurality of drive motors are installed on the valve body. The drive end of each drive motor is provided with a sealing valve block. The sealing valve block is movably installed in the first chamber. The opposite surfaces of the sealing valve block form a contact sealing surface to close the communication hole or the communication hole. The position of the sealing valve block is driven by the plurality of drive motors to realize gas transmission.

[0013] As a preferred technical solution, the silent valve structure includes at least a first drive motor and a second drive motor. The drive end of the first drive motor is provided with a first sealing valve block. The drive end of the second drive motor is provided with a second sealing valve block.

[0014] As a preferred technical solution, the first sealing valve block and the second sealing valve block can be located at the communication hole position, or the first sealing valve block and the second sealing valve block can be located at the communication hole position, or one of the first sealing valve block and the second sealing valve block is located at the communication hole position, and the other is located at the communication hole position.

[0015] As a preferred technical solution, the silent valve structure includes at least a first gas outlet, a second gas outlet, a first air outlet and a second air outlet.

[0016] When the work is stopped, the first sealing valve block and the second sealing valve block are located at the communication hole position.

[0017] When starting work, the first sealing valve block is located at the communication hole position, and the second sealing valve block is located at the communication hole position, or the first sealing valve block is located at the communication hole position, and the second sealing valve block is located at the communication hole position. One of the first gas outlet and the second gas outlet is in communication with the air inlet, and the other is in communication with the corresponding air outlet. By alternately switching the positions of the first sealing valve block and the second sealing valve block, uninterrupted gas transmission is realized.

[0018] Before stopping working, the first sealing valve block and the second sealing valve block are located at the through hole position, the first gas outlet is communicated with the first gas exhaust, and the second gas outlet is communicated with the second gas exhaust.

[0019] As a preferred technical scheme, the valve body comprises a first valve plate, a second valve plate and a fixed plate connected in sequence, and the first valve plate, the second valve plate and the fixed plate are sequentially fastened and connected through fasteners;

[0020] Among them, a plurality of gas exhausts are arranged on the first valve plate, a plurality of gas outlets are arranged on the second valve plate, and a plurality of drive motors are fixedly installed at the bottom position of the fixed plate.

[0021] As a preferred technical scheme, the drive end of the drive motor has a push rod, the push rod extends into the first chamber through the second chamber and the communication hole, and the sealing valve block is installed on the push rod.

[0022] As a preferred technical scheme, the sealing valve block adopts a rubber valve block.

[0023] As a preferred technical scheme, the drive motor adopts a stepping motor.

[0024] As a preferred technical scheme, the clamping position of the first valve plate and the second valve plate is provided with a rubber ring.

[0025] As a preferred technical scheme, the clamping position of the second valve plate and the fixed plate is provided with a first rubber pad;

[0026] The clamping position of the fixed plate and the drive motor is provided with a second rubber pad.

[0027] The beneficial effects of the utility model are: the mute four-position five-way valve structure has the advantages of convenient operation, simple control, low noise, long service life and the like, efficient gas transmission control is realized through double motor driving, uninterrupted oxygen production is realized, meanwhile, the compactness and adaptability of the structure are maintained, high-quality rubber material is adopted for the valve block, excellent sealing performance and corrosion resistance are provided, the safety and stability of the system are significantly improved, the problems of complex driving, loud noise, low efficiency and complex structure in the prior art are comprehensively solved, the overall performance and user experience of the valve are significantly improved, and through the adoption of the stepping motor, compared with the traditional electromagnetic valve, the rotating sound is basically inaudible, and the mute is realized. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0029] Figure 1 is a structural schematic view of the mute valve structure;

[0030] Figure 2 is Figure 1 is a front view of the mute valve structure in the middle position;

[0031] Figure 3 is a sectional view of the mute valve structure in the first position;

[0032] Figure 4 is a sectional view of the mute valve structure in the second position;

[0033] Figure 5 is a sectional view of the mute valve structure in the third position;

[0034] Figure 6 is a sectional view of the mute valve structure in the fourth position;

[0035] Explanation of reference signs:

[0036] 11, first valve plate; 12, second valve plate; 13, fixed plate; 21, first driving motor; 22, second driving motor; 31, first push rod; 32, second push rod; 41, first sealing valve block; 42, second sealing valve block; 50, rubber ring; 60, first rubber pad; 70, second rubber pad; 111, air inlet; 112, first air outlet; 113, second air outlet; 121, first air outlet; 122, second air outlet; 100, first chamber; 200, second chamber. DETAILED DESCRIPTION

[0037] All features disclosed in this specification, or all steps of any method or process disclosed in this specification, can be combined in any combination, except where it is specifically stated otherwise.

[0038] Any feature disclosed in this specification, unless stated otherwise, can be replaced by any other feature serving the same, or a similar, purpose.

[0039] As Figure 1 and Figure 2As shown, the utility model relates to a kind of mute valve structure, including a valve body.The upper portion of valve body is provided with air inlet 111, for the entry and distribution of gas.The output end of air inlet 111 is connected with multiple first chambers 100 in the inside of valve body by multiple through holes, so that in working time, gas can flow into each chamber smoothly, guaranteeing flow efficiency.

[0040] Valve body is also provided with multiple exhaust ports and air outlets.Each exhaust port (for example, first exhaust port 112 and second exhaust port 113) corresponds a first chamber 100 located in the inside of valve body, and each exhaust port is communicated with its corresponding first chamber 100, so as to discharge gas from first chamber.At the same time, air outlet (such as first air outlet 121 and second air outlet 122) corresponds a second chamber 200, and each air outlet is communicated with corresponding second chamber 200, ensuring the shunt of gas discharge and the effectiveness of transmission.

[0041] In the structure, the communication hole is arranged between each first chamber 100 and adjacent second chamber 200, and the communication of first chamber 100 and second chamber 200 is realized through the communication hole.Air inlet 111 is connected with each first chamber 100 by multiple through holes, so that gas entering valve body can be distributed to each chamber as needed, ensuring the uniformity of gas flow and the efficiency of transmission.

[0042] As shown in Figure 3 And Figure 4 The mute valve structure further includes multiple driving motors, and each driving motor is installed at the bottom position of valve body.The driving end of each driving motor is provided with a sealing valve block, and the sealing valve block is movably installed in the corresponding first chamber 100.

[0043] The opposite side surfaces of the sealing valve block are formed with contact sealing surfaces, which can control the flow of gas by sealing contact with the communication hole or through hole.Each driving motor drives the sealing valve block to move in the first chamber 100 by its driving end, so as to close or open the communication hole and the through hole, and finally realize the flow control of gas and the switching of transmission path.

[0044] As shown in Figure 4 And Figure 5 In the embodiment, preferably, at least two driving motors are provided, which are first driving motor 21 and second driving motor 22.The driving end of first driving motor 21 is provided with first sealing valve block 41, and the driving end of second driving motor 22 is equipped with second sealing valve block 42.

[0045] The first sealing valve block 41 and the second sealing valve block 42 can be located at the through holes at the same time, or located at the communication holes at the same time, and can also be switched so that one of the sealing valve blocks is located at the through hole while the other sealing valve block is located at the communication hole.

[0046] As shown in Figure 3 , when the mute valve structure is in the stop working state, the first sealing valve block 41 and the second sealing valve block 42 are located at the communication holes. At this time, all the exhaust ports are not connected with the outside, and the gas is isolated between the first chamber and the second chamber, and the gas outlet is also disconnected with the outside air, so that the whole device is in a static state, and the gas transmission is stopped.

[0047] As shown in Figure 4 and Figure 5 , when starting to work, the first sealing valve block 41 moves to the communication hole position, and the second sealing valve block 42 moves to the through hole position. At this time, one of the first gas outlet 121 or the second gas outlet 122 will be connected with the air inlet 111, and the other gas outlet will be connected with the corresponding exhaust port, so as to start the one-way gas inlet and exhaust. By alternately switching the positions of the first sealing valve block 41 and the second sealing valve block 42, uninterrupted gas transmission can be achieved.

[0048] Specifically, the first sealing valve block 41 and the second sealing valve block 42 will be switched back and forth within a specified time interval, and the switching frequency can be set to be less than 0.5 seconds, so as to ensure efficient transmission of gas in each chamber.

[0049] As shown in Figure 6 , before the mute valve structure stops working, the first sealing valve block 41 and the second sealing valve block 42 will be located at the through hole position. At this time, the first exhaust port 112 and the first gas outlet 121 are connected, and the second exhaust port 113 and the second gas outlet 122 are connected, so that the device is in a simultaneous exhaust state before stopping, ensuring that all the gas in the chambers can be completely exhausted, avoiding the influence of residual gas on the next work. After the exhaust is completed, the valve structure will return to the initial position of the stop state to wait for the next start.

[0050] As shown in Figure 1 and Figure 2 , the structure of the valve body adopts a multi-layer connection design, including a first valve plate 11, a second valve plate 12 and a fixed plate 13. The first valve plate 11, the second valve plate 12 and the fixed plate 13 are connected with each other in sequence through fasteners such as screws, which can facilitate disassembly and maintenance, and ensure the stability of the valve body structure.

[0051] The first valve plate 11 is provided with a plurality of exhaust ports, such as a first exhaust port 112 and a second exhaust port 113, and the second valve plate 12 is provided with a plurality of gas outlet ports, such as a first gas outlet port 121 and a second gas outlet port 122. The fixed plate 13 is located at the bottom, and a plurality of drive motors are fixedly installed at the bottom of the fixed plate 13. The connection between the drive motor and the fixed plate 13 is also achieved by fasteners, which is convenient for maintenance.

[0052] As shown in Figure 3 to Figure 6 The drive end of each drive motor has a push rod. The push rod extends from the output end of the drive motor, passes through the second chamber 200 and extends to the communication hole, and finally extends into the first chamber 100. The sealing valve block is installed on the push rod, and through the reciprocating movement of the drive motor, the push rod is driven to move the sealing valve block between the first sealing position and the second sealing position. By moving the sealing valve block, the communication hole or the communication hole is effectively closed or opened, achieving precise control of the gas flow path and ensuring the reliability and efficiency of the valve structure.

[0053] In the selection of sealing materials, the sealing valve block is made of rubber material. Rubber material has excellent sealing performance. When in contact with the sealing position, the rubber sealing valve block produces moderate elastic deformation, so that it is more tightly fitted with the communication hole and the communication hole, effectively preventing gas leakage;

[0054] In addition, rubber has corrosion resistance, which can ensure the stability of the valve in long-term operation. In practical application, the number of sealing valve blocks can be increased according to the number of chambers in the valve body, to adapt to different gas flow requirements and realize multi-path, multi-channel gas distribution.

[0055] In this structure, the drive motor is a stepper motor. The stepper motor has very little noise during operation, which can meet the requirement of silence and overcome the noise problem of traditional electromagnetic valves during switching, making it suitable for application environments with high noise control requirements.

[0056] To further improve the sealing effect, sealing elements are installed at the key connection positions of the valve plates. A rubber ring 50 is arranged at the connection position of the first valve plate 11 and the second valve plate 12, a first rubber pad 60 is arranged at the connection position of the second valve plate 12 and the fixed plate 13, and a second rubber pad 70 is arranged at the connection position between the fixed plate 13 and the drive motor. The use of these rubber sealing elements further improves the sealing performance of the interface, prevents gas leakage, and also enhances the silence effect of the device.

[0057] The mute valve structure of the utility model drives sealing valve block alternately through driving motor, realizes uninterrupted transmission of gas, uses stepping motor and rubber sealing material, effectively reduces noise in working process, makes structure convenient to install, easy to disassemble and maintain, is suitable for various application scenes which have high requirements for gas transmission and mute performance, has good practicality and reliability.

[0058] The above merely illustrates the specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any change or replacement without creative labor should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be limited by the protection scope defined in the claims.

Claims

1. A silent valve structure, characterized by, The valve body is provided with an air inlet (111), a plurality of air outlets and a plurality of gas outlets. Each of the air outlets corresponds to a first chamber (100) inside the valve body and is in communication with the corresponding first chamber (100). Each of the gas outlets corresponds to a second chamber (200) inside the valve body and is in communication with the corresponding second chamber (200). The first chamber (100) and the adjacent second chamber (200) are provided with a communication hole. The air inlet (111) is in communication with each first chamber (100) through each communication hole. A plurality of drive motors are installed on the valve body. The drive end of each drive motor is provided with a sealing valve block. The sealing valve block is movably installed in the first chamber (100). The opposite surfaces of the sealing valve block form a contact sealing surface to close the communication hole or the communication hole. The position of the sealing valve block driven by the plurality of drive motors is adjusted to achieve gas transmission. The mute valve structure includes at least a first drive motor (21) and a second drive motor (22). The drive end of the first drive motor (21) is provided with a first sealing valve block (41). The drive end of the second drive motor (22) is provided with a second sealing valve block (42).

2. The silent valve structure according to claim 1, characterized in that: The first sealing valve block (41) and the second sealing valve block (42) can be located at the communication hole position, or the first sealing valve block (41) and the second sealing valve block (42) can be located at the communication hole position, or one of the first sealing valve block (41) and the second sealing valve block (42) is located at the communication hole position, and the other is located at the communication hole position.

3. The silent valve structure according to claim 2, characterized in that: The mute valve structure includes at least a first gas outlet (121), a second gas outlet (122), a first air outlet (112) and a second air outlet (113).

4. The silent valve structure according to claim 3, characterized in that: When stopping working, the first sealing valve block (41) and the second sealing valve block (42) are located at the communication hole position. When starting working, the first sealing valve block (41) is located at the communication hole position, and the second sealing valve block (42) is located at the communication hole position, or the first sealing valve block (41) is located at the communication hole position, and the second sealing valve block (42) is located at the communication hole position. One of the first gas outlet (121) and the second gas outlet (122) is in communication with the air inlet (111), and the other is in communication with the corresponding air outlet. By alternately switching the positions of the first sealing valve block (41) and the second sealing valve block (42), uninterrupted gas transmission is achieved. Before stopping working, the first sealing valve block (41) and the second sealing valve block (42) are located at the communication hole position. The first gas outlet (121) is in communication with the first air outlet (112), and the second gas outlet (122) is in communication with the second air outlet (113). ​ 5. The silent valve structure according to any one of claims 1 to 4, characterized in that: The valve body comprises a first valve plate (11), a second valve plate (12) and a fixed plate (13) connected in sequence, and the first valve plate (11), the second valve plate (12) and the fixed plate (13) are sequentially fastened and connected by fasteners; Wherein, a plurality of said exhaust ports are respectively arranged on the first valve plate (11), a plurality of said air outlets are respectively arranged on the second valve plate (12), and a plurality of said driving motors are respectively fixedly installed at the bottom position of the fixed plate (13).

6. The silent valve structure according to any one of claims 1 to 4, characterized in that: The driving end of the driving motor has a push rod, the push rod penetrates through the second chamber (200) and the communication hole and extends into the first chamber (100), and the sealing valve block is installed on the push rod.

7. The silent valve structure according to claim 1, wherein: The sealing valve block adopts a rubber valve block.

8. The silent valve structure according to claim 1, wherein: The driving motor adopts a stepping motor.

9. The silent valve structure according to claim 5, wherein: The clamping position of the first valve plate (11) and the second valve plate (12) is provided with a rubber ring (50).

10. The silent valve structure of claim 5, wherein: The clamping position of the second valve plate (12) and the fixed plate (13) is provided with a first rubber pad (60); The clamping position of the fixed plate (13) and the driving motor is provided with a second rubber pad (70).

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