Fluid distribution valve group and pneumatic comfort system

Abstract

The embodiment of the utility model relates to the technical field of fluid distribution, and particularly discloses a fluid distribution valve group and a pneumatic comfort system, the fluid distribution valve group comprises a distribution mechanism and a driving mechanism, the distribution mechanism comprises a first channel and a plurality of fluid distribution units, and each fluid distribution unit comprises a second channel, a second medium opening, a valve core and a reset piece. The valve element is movably arranged in the second channel, the reset piece is arranged in the second channel, the two ends of the reset piece abut against one end of the valve element and the wall face of one end of the second channel respectively, a switching valve port communicated with the first channel is formed in one end of the second channel, and a first medium opening is formed in the other end of the second channel. The driving mechanism is arranged on one side of the distribution mechanism and comprises at least one sliding block and a driving assembly, and the driving assembly is connected with the sliding blocks. By means of the mode, the heating value of the fluid distribution valve group in the working process can be reduced, the miniaturization and simplicity of the structure of the fluid distribution valve group are achieved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The embodiment of the utility model relates to the technical field of fluid distribution, and in particular to a fluid distribution valve group and a pneumatic comfort system. Background Art

[0002] In the pneumatic comfort system, it is equipped with multiple massage air bags and a fluid distribution valve group. The fluid distribution valve group includes multiple solenoid valves and a circuit board. Each solenoid valve independently controls a massage air bag. The opening and closing of the solenoid valve is controlled by the circuit board, thereby controlling the inflation and deflation of the corresponding massage air bag to achieve the massage function.

[0003] However, in the process of implementing the embodiments of the utility model, the inventors found that: currently all solenoid valves are welded on the circuit board, which makes the fluid distribution valve group generate large heat when working, has a complex structure, high manufacturing cost, and occupies a large space. Utility Model Content

[0004] The utility model provides a fluid distribution valve group to solve the technical problems that all electromagnetic valves are welded on the circuit board in the current technical means, so that the fluid distribution valve group generates a large amount of heat when working, has a complex structure, a high manufacturing cost, and occupies a large space. The utility model can reduce the heat generated by the fluid distribution valve group when working, realize the miniaturization and simplicity of the structure of the fluid distribution valve group, and reduce the manufacturing cost.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is to provide a fluid distribution valve group, including:

[0006] A distribution mechanism, comprising a first channel and a plurality of fluid distribution units, wherein the plurality of distribution units are arranged side by side, wherein the fluid distribution unit comprises a second channel, a first medium opening, a valve core and a reset member, wherein the valve core and the reset member are both arranged in the second channel, wherein one end of the second channel is connected to the first channel, and the other end is provided with a second medium opening, and a part of the inner wall in the second channel is also enclosed to form a switching valve port;

[0007] A driving mechanism is arranged on one side of the distribution mechanism, the driving mechanism comprises at least one slider and a driving assembly, the driving assembly is connected to the slider, and the driving assembly is used to drive the slider to move back and forth, so as to drive the valve core to move;

[0008] Wherein, when the slider pushes against any of the valve cores, so that the valve core moves from a preset first position to a preset second position, the valve core closes the first medium opening and simultaneously opens the switching valve port, and the second medium opening is connected and connected to the first channel; when the slider disengages from any of the valve cores, the reset member pushes the valve core to move from the preset second position to the preset first position, so that the valve core closes the switching valve port and simultaneously opens the first medium opening, and the second medium opening is connected to the first medium opening.

[0009] Optionally, the valve core includes a movable core and a pushing member, the movable core is movably arranged in the second channel, a sealing member is also provided between the pushing member and the movable core, the pushing member abuts against a side of the sealing member close to the driving mechanism, an end of the movable core facing away from the second medium opening abuts against a side of the sealing member facing away from the driving mechanism, and the pushing member is used to abut against the slider.

[0010] Optionally, the movable core has a first blocking portion for blocking the first medium opening and a second blocking portion for blocking the switching valve port, the first blocking portion is located at one end of the movable core close to the first medium opening, the second blocking portion is a raised portion on the outer wall of the middle part of the movable core, one end face of the raised portion is used to open or block the switching valve port, and the reset member abuts between the other end face of the raised portion and the inner wall of the second channel.

[0011] Optionally, the movable core has a first blocking portion for blocking the first medium opening and a second blocking portion for blocking the switching valve port, the first blocking portion is located at one end of the movable core close to the first medium opening, and a portion of the end surface of the second blocking portion abuts against the sealing member. Optionally, one end of the valve core has a pushing portion that cooperates with and abuts against the slider, and the other end has a first blocking portion for blocking the first medium opening, and the side of the fluid distribution unit close to the drive assembly also has an elastic sealing portion, the elastic sealing portion is surrounded and clamped in the sealing groove on the side wall of the valve core to seal and isolate the opposite sides of the elastic sealing portion, a protrusion is provided on a portion of the outer wall in the middle of the valve core, and one end surface of the second protrusion is used to open or block the switching valve port, and the reset member abuts between the other end surface of the protrusion and the inner wall of the second channel.

[0012] Optionally, the pushing member is a sphere, or the surface of one end of the pushing member used for pushing against the sliding block is an arc surface.

[0013] Optionally, the driving assembly includes a driver and a screw rod, the driver is connected to the screw rod, the slider is sleeved on the screw rod, and the driver is used to drive the screw rod to rotate so as to drive the slider to reciprocate.

[0014] Optionally, the number of the sliders is at least two.

[0015] Optionally, there are two groups of the distribution mechanisms, and the two groups of the distribution mechanisms are located on opposite sides of the slider.

[0016] In order to solve the above technical problems, another technical solution adopted by the utility model is: to provide a pneumatic comfort system, an air source, a plurality of air bags and the above-mentioned fluid distribution valve group, the air source is connected to the first channel of the fluid distribution valve group, and the air bag is connected to the second medium opening of the fluid distribution valve group.

[0017] In the embodiment of the utility model, the slider is driven to move back and forth by the driving component so that the slider abuts against or disengages from any valve core, so that the second medium opening and the switching valve port are connected, or the second medium opening and the first medium opening are connected, thereby realizing the functions of inflating and deflating the fluid distribution unit, and controlling different fluid distribution units by moving the slider, replacing the original multi-solenoid valve integrated structure, and no circuit board is required to control the fluid distribution valve group. The fluid distribution valve group has a miniaturized and simple structure, higher stability in use, and longer service life. In addition, since there are no multiple solenoid valves, the fluid distribution valve group generates less heat during operation and operates more stably.

[0018] Furthermore, since the slider cooperates with the spherical pusher, the friction between the slider and the pusher is reduced during the abutment process, so that the slider can move quickly between the various fluid distribution units, switching across the fluid distribution units can be achieved, and the heat generated between the slider and the pusher is reduced.

[0019] Furthermore, the fluid distribution valve group can be applied to the control of multiple air bag massage systems. It only needs to control the rotation of the driver according to the frequency of inflation and deflation, which has lower power consumption. In addition, compared with the impact noise generated by the instantaneous response of the solenoid valve, the fluid distribution unit has no obvious impact noise, which is more suitable for pneumatic massage products with high requirements for silence.

[0020] Furthermore, the cross-sectional dimensions of the traditional solenoid valve core meet certain requirements, resulting in a relatively small air intake gap. Under the same power, the filling and deflation speed will be affected by the limited air intake gap. The second medium opening of the fluid distribution unit can be opened according to demand and is not affected by the screw rod, which can achieve a faster filling and deflation speed; in addition, the seal does not directly serve as an element to open or close the switching valve port and the first medium opening, and can also achieve very good sealing under the condition of sliding switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the fluid distribution valve group of the utility model;

[0023] Figure 2 It is a structural explosion diagram of the fluid distribution valve group of the utility model;

[0024] Figure 3 yes Figure 1 Schematic diagram of the structural section at AA in the middle;

[0025] Figure 4 yes Figure 1 Schematic diagram of the structural section at BB in the middle;

[0026] Figure 5 yes Figure 1 Schematic diagram of the structural section at CC;

[0027] Figure 6 It is an exploded schematic diagram of the movable core structure of the fluid distribution valve group of the utility model;

[0028] Figure 7 It is a structural schematic diagram of another distribution structure of the fluid distribution valve group of the utility model;

[0029] Figure 8 yes Figure 7 Schematic diagram of the structural section at DD in the middle;

[0030] Fig. 9 It is a structural schematic diagram of a valve core of another distribution structure of the fluid distribution valve group of the utility model.

[0031] Description of reference numerals:

[0032] 100. Fluid distribution valve group;

[0033] 1. distribution mechanism; 11. first channel; 12. multiple fluid distribution units; 121. second channel; 122. second medium opening; 123. valve core; 1231. movable core; 1232. sealing member; 1233. pushing member; 1234. first blocking portion; 1235. second blocking portion; 1236. pushing member; 1237. sealing groove; 1238. raised portion; 124. reset member; 125. switching valve port; 126. first medium opening; 127. distribution valve body; 128. connecting groove; 129. elastic sealing portion; 13. third channel;

[0034] 2. driving mechanism; 21. slider; 211. slideway; 22. driving assembly; 221. driver; 222. screw rod; 23. guide rod;

[0035] 3. Shell; 31. Third medium opening. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "locked to" another element, it can be directly on the other element, or there can be one or more centered elements between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements between them. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

[0037] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by technicians in the technical field of the present invention. The terms used in this specification are only for the purpose of describing specific embodiments and are not used to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0038] See also Figure 1-Figure 4The fluid distribution valve group 100 includes a distribution mechanism 1 and a driving mechanism 2. The distribution mechanism 1 includes a first channel 11 and a plurality of fluid distribution units 12. The first channel 11 is used to communicate with the gas source. The plurality of fluid distribution units 12 are arranged side by side. The fluid distribution unit 12 includes a second channel 121, a second medium opening 122, a valve core 123 and a reset member 124. The second medium opening 122 is used to communicate with the gas unit. The valve core 123 is movably arranged in the second channel 121. The reset member 124 is arranged in the second channel 121. The two ends of the reset member 124 are respectively abutted against the valve core 123 and one end of the second channel 121. The reset member 124 is used to push the valve core 123 to move. One end of the second channel 121 is connected to the first channel 11. Part of the inner wall of the second channel 121 encloses a switching valve port 125. The other end of the second channel 121 is provided with a first medium opening 126, and the first medium opening 126 is used to communicate with the outside world. The driving mechanism 2 is arranged on one side of the dispensing mechanism 1. The driving mechanism 2 includes at least one slider 21 and a driving assembly 22. The driving assembly 22 is connected to the slider 21, and the driving assembly 22 is used to drive the slider 21 to move back and forth. To drive the valve core 123 to move; wherein, when the slider 21 pushes against any valve core 123, so that the valve core 123 moves from the preset first position to the preset second position, the valve core 123 closes the first medium opening 126 and opens the switching valve port 125 at the same time, and the second medium opening 122 is connected to the first channel 11 through the switching valve port 125. When the slider 21 is separated from any valve core 123, the reset member 124 pushes the valve core 123 from the preset second position to the preset first position, so that the valve core 123 closes the switching valve port 125 and opens the second medium opening 122 at the same time. A medium opening 126, a second medium opening 122 and a first medium opening 126 are connected to realize the functions of inflation and deflation of the fluid distribution unit, and control different fluid distribution units by moving the slider 21, replacing the original multi-solenoid valve integrated structure. No circuit board is required to control the fluid distribution valve group 100. The fluid distribution valve group 100 has a miniaturized and simple structure, higher stability in use, and longer service life. In addition, since there are no multiple solenoid valves, the fluid distribution valve group 100 generates less heat during operation and runs more stably.

[0039] In some embodiments, the restoring member 124 is an elastic member.

[0040] For the above allocation agency 1, see Figure 3-Figure 5 The distribution mechanism 1 further includes a third channel 13, the third channel 13 is connected to the first medium opening 126, the third channel 13 is used to communicate with the outside, and the third channel 13 is used to discharge gas to the outside as a confluence channel.

[0041] In some embodiments, see Figure 4The fluid distribution unit 12 further includes a distribution valve body 127 and a connecting groove 128. The second channel 121, the second medium opening 122, the switching valve port 125, the first medium opening 126 and the connecting groove 128 are all arranged on the distribution valve body 127. The connecting groove 128 connects the first channel 11 with the outside.

[0042] In some embodiments, except for the outermost dispensing valve body 127 at one end, the first channel 11 and the third channel 13 all penetrate the other dispensing valve bodies 127. Figure 4 The valve core 123 includes a movable core 1231 and a pusher 1233. The movable core 1231 is movably disposed in the second channel 121. The movable core 1231 is used to open or close the first medium opening 126 and the switching valve port 125. The movable core 123 is sleeved with the reset member 124, and the movable core 123 abuts against the reset member 124. The pusher 1233 is movably disposed in the connecting groove 128. At least part of the pusher 1233 extends out of the connecting groove 128. A sealing member 1232 is further disposed between the pusher 1233 and the movable core 1231. The sealing member 1232 seals and isolates the connecting groove 128 from the first channel 11. The pusher 1233 abuts against a side of the sealing member 1232 close to the driving mechanism 2. One end of the movable core 1231 facing away from the second medium opening 122 abuts against a side of the sealing member 1232 facing away from the driving mechanism 2. The pusher 1231 is used to abut against the slider 21.

[0043] In some embodiments, the seal 1232 is made of one of the rubbers such as silicone rubber, EPDM rubber, and fluororubber.

[0044] In some embodiments, see Figure 4 and Figure 6The movable core 1231 has a first blocking portion 1234 for blocking the first medium opening 126 and a second blocking portion 1235 for blocking the switching valve port 125. The first blocking portion 1234 is located at one end of the movable core 1231 close to the first medium opening 126. The second blocking portion 1235 is a protrusion on the outer wall of the middle part of the movable core 1231. One end face of the protrusion is used to open or block the switching valve port 125. The reset member 124 abuts between the other end face of the protrusion and the inner wall of the second channel 121. Among them, when the pushing member 1233 pushes against the slider 21, the slider 21 pushes the pushing member 1233 to move, so as to push the sealing member 1232 and the movable core 1231 to move, so that the movable core 1231 moves from the preset first position to the preset second position, and the first blocking portion 1234 opens the first medium opening 126, and at the same time, the second blocking portion 1235 closes the switching valve port 125. When the pushing member 1233 is disengaged from the slider 21, under the action of the reset member 124, the reset member 124 pushes the movable core 1231 to move, so as to push the sealing member 1232 and the pushing member 1233 to move, so that the movable core 1231 moves from the preset second position to the preset first position, and the first blocking portion 1234 closes the first medium opening 126, and at the same time, the second blocking portion 1235 opens the switching valve port 125. In other embodiments, the movable core 1231 has a first blocking portion 1234 for blocking the first medium opening 126 and a second blocking portion 1235 for blocking the switching valve port 125. The first blocking portion 1234 is located at one end of the movable core 1231 close to the first medium opening 126, and the second blocking portion 1235 is located at one end of the movable core 1231 away from the first medium opening 126, and a portion of the end surface of the second blocking portion 1235 abuts against the sealing member 1232.

[0045] It is understood that in some embodiments, see Figure 7-Figure 9 The fluid distribution unit 12 is not limited to the above structure. The fluid distribution unit 12 can also be other structures. For example, the valve core 123 is movably arranged in the second channel 123 and the connecting groove 128. One end of the valve core 123 has a pushing portion 1236 that cooperates with the slider 21 and a first blocking portion 1234 for blocking the first medium opening 126. The pushing portion 1236 extends out of the connecting groove 128. The end of the fluid distribution unit 12 close to the driving component 22 also has an elastic sealing portion 1 29. The elastic sealing portion 1239 is clamped around the sealing groove 1237 provided on the side wall of the valve core 123 to seal and isolate the two opposite sides of the elastic sealing portion 1239, that is, to seal and isolate one end of the connecting groove 128 from the outside. A protrusion 1238 is provided on the outer wall of the middle part of the valve core 123. One end surface of the protrusion 1238 is used to open or block the switching valve port 125. The reset member 124 is in contact between the other end surface of the protrusion 1238 and the inner wall of the second channel 121.

[0046] In some embodiments, the pusher 1233 is a sphere, and the pusher 1233, which is a sphere, can rotate relative to the connecting groove 128. When the slider 21 pushes against the pusher 1233, the pusher 1233, which is a sphere, can roll relative to the connecting groove 128 and the slider 21 to reduce the friction between the pusher 1233 and the slider 21, so that the slider 21 can move quickly between the pushers 1233, and can move across the pushers 1233 to switch across the fluid distribution unit 12, and can also reduce the heat generated between the slider 21 and the pusher 1233. Furthermore, in some embodiments, the surface of one end of the pusher 1233 used to push against the slider 21 is an arc surface, which reduces the contact surface of the pusher 1233 and the slider 21 when pushing, thereby reducing the friction between the pusher 1233 and the slider 21.

[0047] In some embodiments, the surface of the slider 21 used to push against the pushing member 1233 is an arc surface, which reduces the contact area between the pushing member 1233 and the slider 21 when pushing against each other, thereby reducing the friction between the pushing member 1233 and the slider 21.

[0048] For the above drive mechanism 2, see Figure 3 and Figure 4 The driving mechanism 2 further includes a guide rod 23 , which is disposed on one side of the dispensing mechanism 1 . The slider 21 is provided with a slide groove 211 , which slides and accommodates the guide rod 23 . The guide rod 23 is used to guide the slider 21 .

[0049] In some embodiments, see Figure 3 The drive assembly 22 includes a driver 221 and a screw rod 222. The driver is arranged on one side of the distribution mechanism 1. The driver 221 is connected to the screw rod 222. The slider 21 is sleeved on the screw rod 222. The driver 221 is used to drive the screw rod 222 to rotate, so as to drive the slider 21 to slide back and forth along the guide rod 23, so that the fluid distribution valve group 100 can be applied to the control of the pneumatic comfort system of multiple air bags. It only needs to control the rotation of the driver 221 according to the inflation and deflation frequency, so that the power consumption is lower. In addition, compared with the impact noise generated by the instantaneous response of the solenoid valve, the fluid distribution valve group 100 of this embodiment has no obvious impact noise, and is more suitable for pneumatic comfort products with high requirements for quietness.

[0050] In some embodiments, the driver 221 is a motor. Furthermore, the driver 221 may be a stepping motor.

[0051] In some embodiments, the number of the sliders 21 is at least two, and the distance between two adjacent sliders 21 may be the same as the distance between two adjacent movable blocks.

[0052] In some embodiments, there are two groups of distribution mechanisms 1 , and the two groups of distribution mechanisms 1 are located on opposite sides of the slider 21 , so that the fluid distribution valve group 100 can control more gas-using units.

[0053] In some embodiments, see Figure 1-Figure 3 The fluid distribution valve group 100 includes a shell 3, the shell 3 is connected to the distribution mechanism 1, the driving mechanism 3 is arranged in the shell, the connecting groove 128 is connected to the space inside the shell 3 for setting the driving mechanism 3, and the shell 3 is provided with a third medium opening 31, and the third medium opening 31 is connected to the first channel 11.

[0054] In the embodiment of the utility model, the slider 21 is driven to move back and forth by the driving component 22, so that the slider 21 abuts against or disengages from any valve core 123, so that the second medium opening 122 and the switching valve port 125 are connected, or the second medium opening 122 and the first medium opening 126 are connected, so as to realize the function of inflating and deflating the fluid distribution unit, and control different fluid distribution units by moving the slider 21, replacing the original multi-solenoid valve integrated structure, without the need for a circuit board to control the fluid distribution valve group 100, the fluid distribution valve group 100 has a miniaturized and simple structure, higher stability in use, and longer service life, and because there are no multiple solenoid valves, the fluid distribution valve group 100 generates less heat during operation and operates more stably.

[0055] The utility model also provides an embodiment of a pneumatic comfort system, which includes an air source, a plurality of air bags and the above-mentioned fluid distribution valve group 100, the source is connected to the first channel 11 of the fluid distribution valve group 100, and the air bag is connected to the second medium opening 122 of the fluid distribution valve group 100. The structure and function of the fluid distribution valve group 100 can be referred to the above-mentioned embodiment, which will not be described one by one here.

[0056] It should be noted that the preferred embodiments of the utility model are given in the specification and drawings of the utility model, but the utility model can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional restrictions on the content of the utility model. The purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the utility model; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the utility model.

Claims

1. A fluid distribution valve group, characterized in that: include: A distribution mechanism, comprising a first channel and a plurality of fluid distribution units, wherein the plurality of fluid distribution units are arranged side by side, wherein the fluid distribution unit comprises a second channel, a first medium opening, a valve core and a reset member, wherein the valve core and the reset member are both arranged in the second channel, wherein one end of the second channel is communicated with the first channel, and the other end is provided with a second medium opening, and a portion of the inner wall in the second channel is also enclosed to form a switching valve port; A driving mechanism is arranged on one side of the distribution mechanism, the driving mechanism comprises at least one slider and a driving assembly, the driving assembly is connected to the slider, and the driving assembly is used to drive the slider to move back and forth to push the valve core to move; Wherein, when the slider pushes against any of the valve cores, so that the valve core moves from a preset first position to a preset second position, the valve core closes the first medium opening and simultaneously opens the switching valve port, and the second medium opening is connected to the first channel through the switching valve port; when the slider disengages from any of the valve cores, the reset member pushes the valve core to move from the preset second position to the preset first position, so that the valve core closes the switching valve port and simultaneously opens the first medium opening, and the second medium opening is connected to the first medium opening.

2. The fluid distribution valve assembly according to claim 1, characterized in that: The valve core includes a movable core and a pushing member, the movable core is movably arranged in the second channel, a sealing member is also arranged between the pushing member and the movable core, the pushing member abuts against a side of the sealing member close to the driving mechanism, an end of the movable core facing away from the second medium opening abuts against a side of the sealing member facing away from the driving mechanism, and the pushing member is used to abut against the slider.

3. The fluid distribution valve assembly according to claim 2, characterized in that: The movable core has a first blocking portion for blocking the first medium opening and a second blocking portion for blocking the switching valve port. The first blocking portion is located at one end of the movable core close to the first medium opening, and the second blocking portion is a protrusion on the outer wall of the middle part of the movable core. One end face of the protrusion is used to open or block the switching valve port, and the reset member abuts between the other end face of the protrusion and the inner wall of the second channel.

4. The fluid distribution valve assembly according to claim 2, characterized in that: The movable core has a first sealing portion for sealing the first medium opening and a second sealing portion for sealing the switching valve port, the first sealing portion is located at one end of the movable core close to the first medium opening, the second sealing portion is located at one end of the movable core away from the first medium opening and a portion of the end surface of the second sealing portion abuts against the seal.

5. The fluid distribution valve assembly according to claim 1, characterized in that: One end of the valve core has a pushing portion that cooperates and abuts with the slider, and the other end has a first blocking portion for blocking the first medium opening. The fluid distribution unit also has an elastic sealing portion on the side close to the drive assembly. The elastic sealing portion is surrounded and clamped in a sealing groove on the side wall of the valve core to seal and isolate the opposite sides of the elastic sealing portion. A protrusion is provided on part of the outer wall in the middle part of the valve core, and one end face of the protrusion is used to open or block the switching valve port, and the reset member abuts between the other end face of the protrusion and the inner wall of the second channel.

6. The fluid distribution valve assembly according to claim 2, characterized in that: The pushing member is a sphere, or the surface of one end of the pushing member used for pushing against the sliding block is an arc surface.

7. The fluid distribution valve assembly according to claim 1, characterized in that: The driving assembly includes a driver and a screw rod, the driver is connected to the screw rod, the slider is sleeved on the screw rod, and the driver is used to drive the screw rod to rotate so as to drive the slider to reciprocate.

8. The fluid distribution valve assembly according to claim 1, characterized in that: The number of the sliding blocks is at least two.

9. The fluid distribution valve assembly according to any one of claims 1 to 8, characterized in that: The number of the distributing mechanisms is two groups, and the two groups of the distributing mechanisms are located on opposite sides of the sliding block.

10. A pneumatic comfort system, characterized in that: It comprises an air source, a plurality of air bags and a fluid distribution valve group as described in any one of claims 1 to 9, wherein the air source is connected to a first channel of the fluid distribution valve group, and the air bags are connected to a second medium opening of the fluid distribution valve group.

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