CN117287517B - Valve assembly, pneumatic massage system and seat - Google Patents
Valve assembly, pneumatic massage system and seatInfo
- Publication number
- CN117287517B CN117287517B CN202311407936.1A CN202311407936A CN117287517B CN 117287517 B CN117287517 B CN 117287517B CN 202311407936 A CN202311407936 A CN 202311407936A CN 117287517 B CN117287517 B CN 117287517B
- Authority
- CN
- China
- Prior art keywords
- sliding sleeve
- valve
- valve rod
- medium opening
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H9/00—Pneumatic or hydraulic massage
- A61H9/005—Pneumatic massage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/90—Details or parts not otherwise provided for
- B60N2/976—Details or parts not otherwise provided for massaging systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K2200/00—Details of valves
- F16K2200/30—Spring arrangements
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Multiple-Way Valves (AREA)
Abstract
本发明实施例涉及阀组件技术领域,尤其公开了一种阀组件、气动按摩系统及座椅，包括阀体、阀芯和致动器，阀体包括电路板，阀体具有阀腔，阀体开设有与阀腔连通的第一介质开口、第二介质开口和第三介质开口，阀芯包括滑套、第一阀杆、第二阀杆和第一弹性件，滑套设置于阀腔，第一阀杆位于滑套的一端，第二阀杆位于滑套的另一端，第一弹性件连接于第一阀杆和第二阀杆，致动器与电路板连接，致动器用于致动滑套在第一位置、第二位置和第三位置之间移动。通过上述方式，本发明实施例能够避免同时出现第一阀杆打开第一介质开口和第二阀杆打开第二介质开口的状态，保证气泵对其它气袋的供应压力，从而不会影响其它气袋的供气效率。
This invention relates to the field of valve assembly technology, and specifically discloses a valve assembly, a pneumatic massage system, and a seat. The assembly includes a valve body, a valve core, and an actuator. The valve body includes a circuit board and has a valve cavity. The valve body has a first medium opening, a second medium opening, and a third medium opening communicating with the valve cavity. The valve core includes a sliding sleeve, a first valve stem, a second valve stem, and a first elastic element. The sliding sleeve is disposed in the valve cavity. The first valve stem is located at one end of the sliding sleeve, and the second valve stem is located at the other end of the sliding sleeve. The first elastic element is connected to the first and second valve stems. The actuator is connected to the circuit board and is used to actuate the sliding sleeve to move between the first, second, and third positions. Through this method, this invention can avoid the simultaneous occurrence of the first valve stem opening the first medium opening and the second valve stem opening the second medium opening, ensuring the air pump's supply pressure to other air bags and thus not affecting the air supply efficiency of other air bags.
Description
Technical Field
The embodiment of the invention relates to the technical field of valve assemblies, in particular to a valve assembly, a pneumatic massage system and a seat.
Background
People often experience discomfort due to static posture in the vehicle seat when riding the vehicle for a long time, even resulting in soreness of waist and back pain, and in order to reduce the discomfort of people when riding the vehicle for a long time, the vehicle seat is provided with a pneumatic massage system. The pneumatic massage system comprises an air pump, a valve assembly and an air bag, and the air bag is regulated to be inflated and deflated through the valve assembly so as to realize the massage function. In actual use, a single air pump is typically connected to a plurality of valve assemblies, and a single air pump supplies air to a plurality of air bags.
However, in the process of realizing the embodiment of the invention, the inventor finds that at present, the valve assembly is moved from one position to the other position through one valve core to respectively switch the air inlet and the air outlet, but the state that the air inlet and the air outlet are simultaneously opened easily occurs in the moving process, so that the air supply pressure of the air pump to other air bags is insufficient, and the air supply efficiency of other air bags is influenced.
Disclosure of Invention
The invention mainly solves the technical problem of providing a valve assembly, which avoids the state that a first medium opening and a second medium opening are simultaneously opened in the moving process of a valve core, ensures the supply pressure of an air pump to other air bags, and therefore, the air supply efficiency of the other air bags is not affected.
In order to solve the technical problems, the valve assembly comprises a valve body, a valve core and an actuator, wherein the valve body comprises a circuit board, the valve body is provided with a valve cavity, the valve body is provided with a first medium opening, a second medium opening and a third medium opening which are communicated with the valve cavity, the valve core comprises a sliding sleeve, a first valve rod, a second valve rod and a first elastic piece, the sliding sleeve is arranged in the valve cavity, the first valve rod is positioned at one end of the sliding sleeve, the second valve rod is positioned at the other end of the sliding sleeve, the first elastic piece is connected with the first valve rod and the second valve rod, the actuator is connected with the circuit board, the actuator is used for actuating the sliding sleeve to move among a first position, a second position and a third position, wherein when the sliding sleeve is positioned at the first position, the first valve rod seals the first medium opening, the second valve rod opens the second medium opening, when the sliding sleeve is positioned at the second position, the first valve rod seals the second opening, and when the first valve rod seals the second opening, the second valve rod closes the first medium opening, and when the second valve rod closes the first medium opening.
Optionally, the first valve rod is located in one end of the sliding sleeve, one end of the first valve rod extends out of one end of the sliding sleeve, the sliding sleeve is provided with a through hole, one end of the first valve rod is provided with a first step surface, when the sliding sleeve is located at a first position, a first gap exists between a first wall surface of the through hole and the first step surface, and when the sliding sleeve is located at a second position and a third position, the first wall surface is abutted to the first step surface;
The second valve rod is located in the other end of the sliding sleeve, one end of the second valve rod extends out of the other end of the sliding sleeve, a second step surface is arranged at one end of the second valve rod, when the sliding sleeve is located at a first position and a second position, the second step surface is abutted to a second wall surface of the through hole, when the sliding sleeve is located at a third position, a second gap exists between the second step surface and the second wall surface, and the second wall surface is opposite to the first wall surface.
Optionally, the other end of the first valve rod is provided with a containing groove, the other end of the second valve rod is provided with a sleeving column, one end of the first elastic piece is contained in the containing groove, and the other end of the elastic piece is sleeved on the sleeving column.
Optionally, a sliding groove is formed in the inner side wall of the valve cavity, and the sliding sleeve is arranged on the sliding groove in a sliding manner.
Optionally, the actuator includes an SMA element and a second elastic member, the SMA element is connected to the circuit board and the sliding sleeve, and the second elastic member is connected to the sliding sleeve and a bottom wall of the valve cavity.
Optionally, the number of the SMA elements is two, the two SMA elements are oppositely arranged, the middle part of one SMA element is connected with the sliding sleeve, the two ends of one SMA element are oppositely located at two sides of the sliding sleeve respectively, and the two ends of one SMA element are both connected with the circuit board.
Optionally, the number of the SMA elements is two, the two SMA elements are located at two sides of the sliding sleeve, respectively, two ends of the SMA element are connected with the circuit board, and a middle part of the SMA element is connected with the sliding sleeve.
Optionally, the number of SMA elements is one, two ends of the SMA element are located at one side of the sliding sleeve, two ends of the SMA element are connected with the circuit board, and the middle part of the SMA element is connected with the sliding sleeve in a surrounding manner.
In order to solve the technical problem, the invention adopts another technical scheme that the pneumatic massage system comprises an air pump, an air bag and the valve assembly, wherein the air pump is communicated with a first medium opening of the valve assembly, and the air bag is communicated with a third medium opening of the valve assembly.
In order to solve the technical problem, the other technical scheme adopted by the invention is that the seat comprises the pneumatic massage system.
In an embodiment of the invention, the valve assembly comprises a valve body, a valve core and an actuator, wherein the valve body comprises a circuit board, the valve body is provided with a valve cavity, a first medium opening, a second medium opening and a third medium opening which are communicated with the valve cavity are formed in the valve body, the valve core comprises a sliding sleeve, a first valve rod, a second valve rod and a first elastic piece, the sliding sleeve is arranged in the valve cavity, the first valve rod is positioned at one end of the sliding sleeve, the second valve rod is positioned at the other end of the sliding sleeve, the first elastic piece is connected with the first valve rod and the second valve rod, the actuator is connected with the circuit board, the actuator is used for actuating the sliding sleeve to move among a first position, a second position and a third position, wherein when the sliding sleeve is positioned at the first position, the first valve rod seals the first medium opening, when the sliding sleeve is positioned at the second position, the first valve rod seals the first medium opening, and when the second valve rod is positioned at the second position, the second valve rod seals the first medium opening. According to the above, under the action of the actuator actuating sliding sleeve and the first elastic piece, the first valve rod seals the first medium opening and the second valve rod to open the second medium opening, the first valve rod seals the first medium opening and the second valve rod seals the second medium opening, and the first valve rod seals the first medium opening and the second valve rod seals the second medium opening are switched, so that the condition that the first valve rod opens the first medium opening and the second valve rod seals the second medium opening is avoided, the supply pressure of the air pump to other air bags is ensured, and the air supply efficiency of other air bags is not influenced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a valve assembly provided in an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a valve assembly according to an embodiment of the present invention;
FIG. 3 is another cross-sectional schematic view of a valve assembly according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a valve assembly according to an embodiment of the present invention;
FIG. 5 is a schematic exploded view of the valve cartridge of the valve assembly according to an embodiment of the present invention;
FIG. 6 is a schematic illustration of a connection of a sliding sleeve of a valve cartridge of a valve assembly with an SMA element of an actuator provided by an embodiment of the present invention;
FIG. 7 is another schematic illustration of the connection of a sliding sleeve of a valve cartridge of a valve assembly with an SMA element of an actuator provided by an embodiment of the present invention;
Fig. 8 is a schematic illustration of yet another connection of a sliding sleeve of a valve cartridge of a valve assembly with an SMA element of an actuator provided by an embodiment of the invention.
Reference numerals illustrate:
100. Valve assembly, 1, valve body, 11, upper case, 111, chute, 112, first medium opening, 113, third medium opening, 12, bottom case, 121, second medium opening, 122, annular flange, 13, circuit board, 14, valve cavity, 2, valve core, 21, sliding sleeve, 211, through port, 212, sliding part, 213, connecting groove, 22, first valve rod, 221, first step surface, 222, accommodating groove, 23, second valve rod, 231, second step surface, 232, socket post, 2321, abutting part, 24, first elastic piece, 25, first sealing piece, 26, second sealing piece, 3, actuator, 31, SMA element, 32, second elastic piece.
Detailed Description
In order that the invention may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. It will be understood that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements may be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements may be present therebetween. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, a valve assembly 100 includes a valve body 1, a valve spool 2, and an actuator 3. The valve body 1 is used for being connected with a supply source, the outside and a receiving end, so that the receiving end receives a medium supplied by the supply source, or discharges the medium in the receiving end to the outside, the supply source can be an air pump, and the receiving end can be an air bag, an air bag and the like. The valve core 2 is arranged in the valve body 1, the valve core 2 can slide in the valve body 1, and the valve core 2 is used for enabling the valve body 1 to be communicated with or closed off from a supply source and enabling the valve body 1 to be communicated with or closed off from the outside. An actuator 3 is provided in the valve body 1, the actuator 3 being connected to the valve body 1 and the valve body 2, respectively, the actuator 3 being adapted to actuate the valve body 2 to slide between a first position, a second position and a third position, when the valve body 2 is in the first position, the valve body 1 being in communication with the outside and the valve body 1 being disconnected from the supply, when the valve body 2 is in the second position, the valve body 1 being in communication with the supply and the valve body 1 being disconnected from the outside, respectively, when the valve body 2 is in the third position.
For the valve body 1 described above, referring to fig. 2 to 3, the valve body 1 includes an upper case 11, a bottom case 12, and a circuit board 13. The upper case 11 is connected to the bottom case 12, and the upper case 11 and the bottom case 12 enclose a valve chamber 14. The circuit board 13 is fixed in the bottom case 12, and a part of the circuit board 13 protrudes out of the bottom case 12, that is, the circuit board 13 is fixed in the valve cavity 14, and a part of the circuit board 13 protrudes out of the valve cavity 14. The upper case 11 is provided with a chute 111, a first medium opening 112, and a third medium opening 113. The sliding groove 111 is located on the inner side wall of the upper shell 11, that is, the sliding groove 111 is located on the inner side wall of the valve cavity 14. In the present embodiment, the number of the sliding grooves 111 is two, and the two sliding grooves 111 are located opposite to the two inner side walls of the upper case 11. The first medium opening 112 and the third medium opening 113 are both in communication with the valve chamber 14, the first medium opening 112 being located at the top of the upper housing 11, the third medium opening 113 being located at one side of the upper housing 11, the first medium opening 112 being for supply connection, the third medium opening 113 being for connection with the receiving end. The bottom shell 12 is provided with a second media opening 121 and an annular flange 122. The second medium opening 121 communicates with the valve chamber 14, the second medium opening 121 is located at the bottom of the bottom case 12, the second medium opening 121 is opposite to the first medium opening 112, and the second medium opening 121 is used for connection with the outside. An annular flange 122 surrounds the second medium opening 121, the annular flange 122 being provided for the part of the actuator 3 to be sleeved.
It will be appreciated that the valve body 1 is not limited to the above structure, and the valve body 1 may have other structures, for example, the valve body 1 does not include the bottom shell 12, the upper shell 11 is connected to the circuit board 13, the upper shell 11 and the circuit board 13 enclose the valve cavity 14, that is, the surface of the circuit board 13 facing the upper shell 11 is the bottom wall of the valve cavity 14, and the circuit board 13 is provided with the second medium opening 121 and the annular flange 122.
For the valve element 2 described above, referring to fig. 2 to 5, the valve element 2 includes a sliding sleeve 21, a first valve stem 22, a second valve stem 23, a first elastic member 24, a first sealing member 25, and a second sealing member 26. The slide bush 21 is provided with a through hole 211, a slide portion 212, and a connecting groove 213. The through hole 211 is located on the side wall of the sliding sleeve 21, the through hole 211 penetrates through part of the side wall of the sliding sleeve 21, and the through hole 211 is used for assembling the first valve rod 22, the second valve rod 23 and the first elastic piece 24 on the sliding sleeve 21. The sliding portion 212 is located at one end of the sliding sleeve 21, and the sliding portion 212 is slidably disposed in the sliding slot 111, so that the sliding sleeve 21 can move along the sliding slot 111 between the first position, the second position and the third position. In the present embodiment, the number of sliding parts 212 is two, and one sliding part 212 is slidably disposed in one sliding slot 111. The connecting groove 213 is located at the sliding portion 212, and the connecting groove 213 allows a part of the actuator 3 to pass through and connect with the sliding sleeve 21. In the present embodiment, the number of the connection grooves 213 is two, and the two connection grooves 213 are disposed opposite to each other. The first valve rod 22 is located in one end of the sliding sleeve 21, and one end of the first valve rod 22 extends out of one end of the sliding sleeve 21, and the first valve rod 22 is provided with a first step surface 221 and a receiving groove 222. The first step surface 221 is provided at one end of the first valve stem 22, and when the sliding sleeve 21 is located at the first position, as shown in fig. 2, a first gap a exists between the first wall surface of the through hole 211 and the first step surface 221, and when the sliding sleeve 21 is located at the second position and the third position, as shown in fig. 3 and 4, the first wall surface abuts against the first step surface 221. The receiving groove 222 is provided at the other end of the first valve stem 22. The second valve rod 23 is arranged in the other end of the sliding sleeve 21, one end of the second valve rod 23 extends out of the other end of the sliding sleeve 21, and the second valve rod 23 is provided with a second step surface 231 and a sleeving column 232. The second step surface 231 is disposed at one end of the second valve stem 23, and when the sliding sleeve 21 is located at the first position and the second position, the second step surface 231 abuts against the second wall surface of the through hole 211, and when the sliding sleeve 21 is located at the third position, as shown in fig. 4, the second step surface 231 has a second gap b with the second wall surface of the through hole 211, and the second wall surface is opposite to the first wall surface. the socket post 232 is located in the other end of the second valve rod 23, and the socket post 232 is provided with an abutting portion 2321, and the abutting portion 2321 surrounds one end of the socket post 232 away from the accommodating groove 222. One end of the first elastic member 24 is accommodated in the accommodating groove 222, and one end of the first elastic member 24 is connected to the bottom of the accommodating groove 222, the other end of the first elastic member 24 is sleeved on the sleeved post 232, and the other end of the first elastic member 24 is connected to the abutting portion 2321. A first seal 25 is secured to one end of the first valve stem 22. The second seal 26 is fixed to the other end of the second valve stem 23, wherein when the sliding sleeve 21 is located at the first position, the first seal 25 closes the first medium opening 112, and when the sliding sleeve 21 is located at the second position, the second seal 26 closes the second medium opening 121, as shown in fig. 4, the first seal 25 opens the first medium opening 112, and when the sliding sleeve 21 is located at the third position, the second seal 26 closes the second medium opening 121, as shown in fig. 3.
In some embodiments, the first resilient member 24 is a spring.
For the above described actuator 3, please refer to fig. 2-4 and 6, the actuator 3 comprises an SMA element 31 and a second elastic member 32. The number of the SMA elements 31 is two, the two SMA elements 31 are oppositely arranged, the middle part of one SMA element 31 is connected to the bottom of the connecting groove 213 so that the one SMA element 31 is connected to the sliding sleeve 21, two ends of the one SMA element 31 are oppositely arranged at two sides of the groove of the sliding sleeve 21 respectively, and two ends of the one SMA element 31 are connected with the circuit board 13. The SMA element 31 is deformed under the power of the circuit board 13 to actuate the sliding sleeve 21 to move along the sliding groove 111, from the first position to the second position and then to the third position. One end of the second elastic member 32 is sleeved at the other end of the sliding sleeve 21, one end of the second elastic member 32 is connected to the sliding portion 212, the other end of the second elastic member 32 is sleeved at the annular flange 122, the other end of the second elastic member 32 is connected to the bottom wall of the valve cavity 14, when the circuit board 13 is powered off to the SMA element 31, the SMA element 31 is restored, and under the action of the second elastic member 32, the sliding sleeve 21 moves along the sliding groove 111, moves from the third position to the second position and then moves to the first position.
It should be understood that, in some embodiments, referring to fig. 7, the SMA element 31 and the sliding sleeve 21 are not limited to the above structure, the SMA element 31 and the sliding sleeve 21 may have other structures, for example, two connecting grooves 213 are located on two opposite sides of the sliding sleeve 21, the SMA element 31 is two in number, the SMA element 31 is located on two opposite sides of the sliding sleeve 21, two ends of one SMA element 31 are connected with the circuit board 13 (i.e. two ends of one SMA element 31 are located on one side of the sliding sleeve 21 and connected with the circuit board 13, and two ends of the other SMA element 31 are located on the other side of the sliding sleeve 21 and connected with the circuit board 13), and a middle portion of one SMA element 31 is circumferentially connected with one connecting groove 213.
It will be appreciated that in some embodiments, referring to fig. 8, the SMA element 31 and the sliding sleeve 21 are not limited to the above structure, and the SMA element 31 and the sliding sleeve 21 may have other structures, for example, the sliding sleeve 21 is provided with a hook 214, the number of SMA elements 31 is one, two ends of SMA are located at one side of the sliding sleeve 21, two ends of SMA element 31 are connected to the circuit board 13, and the middle part of SMA element 31 bypasses two connecting slots 213 to connect to the hook 214. Furthermore, the hook 214 is provided at the bottom wall of the valve chamber 14.
In some embodiments, the second resilient member 32 is a spring.
In the embodiment of the invention, the valve assembly 100 comprises a valve body 1, a valve core 2 and an actuator 3, the valve body 1 comprises a circuit board 13, the valve body 1 is provided with a valve cavity 14, the valve body 1 is provided with a first medium opening 112, a second medium opening 121 and a third medium opening 113 which are communicated with the valve cavity 14, the valve core 2 comprises a sliding sleeve 21, a first valve rod 22, a second valve rod 23 and a first elastic member 24, the sliding sleeve 21 is arranged on the valve cavity 14, the first valve rod 22 is positioned at one end of the sliding sleeve 21, the second valve rod 23 is positioned at the other end of the sliding sleeve 21, the first elastic member 24 is connected with the first valve rod 22 and the second valve rod 23, the actuator 3 is connected with the circuit board 13, and the actuator 3 is used for actuating the sliding sleeve 21 to move among a first position, a second position and a third position, wherein when the sliding sleeve 21 is positioned at the first position, the first valve rod 22 closes the first medium opening 112, the second valve rod 23 opens the second medium opening 121, when the sliding sleeve 21 is positioned at the second position, the first valve rod 22 closes the first medium opening 112, the second valve rod 23 closes the second medium opening 121, and when the sliding sleeve 21 is positioned at the third position. As can be seen from the above, under the action of the actuator 3 actuating the sliding sleeve 21 and the first elastic member 24, the first valve rod 22 closes the first medium opening 112 and the second valve rod 23 opens the second medium opening 121, the first valve rod 22 closes the first medium opening 112 and the second valve rod 23 closes the second medium opening 121, and the first valve rod 22 opens the first medium opening 112 and the second valve rod 23 closes the second medium opening 121 are switched between three states, so that the simultaneous occurrence of the state that the first valve rod 22 opens the first medium opening 112 and the second valve rod 23 opens the second medium opening 121 is avoided, the supply pressure of the air pump to other air bags is ensured, and the air supply efficiency of other air bags is not affected.
The present invention further provides an embodiment of a pneumatic massage system, where the pneumatic massage system includes an air pump, an air bag, and the valve assembly 100, the air pump is communicated with the first medium opening 112 of the valve assembly 100, the air bag is communicated with the third medium opening 113 of the valve assembly 100, and the structure and the function of the valve assembly 100 can refer to the above embodiment, and will not be described herein.
The invention also provides an embodiment of the seat, the seat comprises the pneumatic massage system, and the structure and the function of the pneumatic massage system can be referred to the above embodiment, and are not repeated herein. The seat can be applied to vehicles such as automobiles, ships or aircrafts.
It should be noted that while the present invention has been illustrated in the drawings and described in connection with the preferred embodiments thereof, it is to be understood that the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but are to be construed as providing a full breadth of the disclosure. The above technical features are further combined with each other to form various embodiments which are not listed above and are all considered as the scope of the present invention described in the specification, further, the improvement or transformation can be carried out by the person skilled in the art according to the above description, and all the improvements and transformation shall fall within the protection scope of the appended claims.
Claims (7)
1. A valve assembly, comprising:
the valve body comprises a circuit board and is provided with a valve cavity, and the valve body is provided with a first medium opening, a second medium opening and a third medium opening which are communicated with the valve cavity;
The valve core comprises a sliding sleeve, a first valve rod, a second valve rod and a first elastic piece, wherein the sliding sleeve is arranged in the valve cavity, the first valve rod is positioned at one end of the sliding sleeve, the second valve rod is positioned at the other end of the sliding sleeve, and the first elastic piece is connected with the first valve rod and the second valve rod;
An actuator connected to the circuit board for actuating the sliding sleeve to move between a first position, a second position and a third position;
When the sliding sleeve is positioned at a first position, the first valve rod seals the first medium opening, the second valve rod opens the second medium opening, when the sliding sleeve is positioned at a second position, the first valve rod seals the first medium opening, the second valve rod seals the second medium opening, and when the sliding sleeve is positioned at a third position, the first valve rod opens the first medium opening, and the second valve rod seals the second medium opening;
The first valve rod is positioned in one end of the sliding sleeve, one end of the first valve rod extends out of one end of the sliding sleeve, the sliding sleeve is provided with a through hole, one end of the first valve rod is provided with a first step surface, when the sliding sleeve is positioned at a first position, a first gap exists between a first wall surface of the through hole and the first step surface, and when the sliding sleeve is positioned at a second position and a third position, the first wall surface is abutted against the first step surface;
The second valve rod is positioned in the other end of the sliding sleeve, one end of the second valve rod extends out of the other end of the sliding sleeve, a second step surface is arranged at one end of the second valve rod, when the sliding sleeve is positioned at the first position and the second position, the second step surface is abutted against a second wall surface of the through hole, when the sliding sleeve is positioned at the third position, a second gap exists between the second step surface and the second wall surface, and the second wall surface is opposite to the first wall surface;
the inner side wall of the valve cavity is provided with a sliding groove, and the sliding sleeve is arranged on the sliding groove in a sliding manner;
The other end of the first valve rod is provided with an accommodating groove, the other end of the second valve rod is provided with a sleeving column, one end of the first elastic piece is accommodated in the accommodating groove, and the other end of the elastic piece is sleeved on the sleeving column.
2. The valve assembly of claim 1, wherein the valve assembly comprises a valve housing,
The actuator comprises an SMA element and a second elastic piece, wherein the SMA element is connected with the circuit board and the sliding sleeve, and the second elastic piece is connected with the sliding sleeve and the bottom wall of the valve cavity.
3. A valve assembly according to claim 2, wherein,
The number of the SMA elements is two, the two SMA elements are oppositely arranged, the middle part of one SMA element is connected with the sliding sleeve, the two ends of the one SMA element are oppositely positioned at the two sides of the sliding sleeve respectively, and the two ends of the one SMA element are connected with the circuit board.
4. A valve assembly according to claim 2, wherein,
The number of the SMA elements is two, the two SMA elements are oppositely and respectively positioned at two sides of the sliding sleeve, two ends of one SMA element are connected with the circuit board, and the middle part of the other SMA element is connected with the sliding sleeve.
5.A valve assembly according to claim 2, wherein,
The number of the SMA elements is one, two ends of the SMA elements are located on one side of the sliding sleeve, two ends of the SMA elements are connected with the circuit board, and the middle of the SMA elements is connected with the sliding sleeve in a surrounding mode.
6. A pneumatic massaging system comprising an air pump in communication with a first media opening of the valve assembly, an air bag in communication with a third media opening of the valve assembly, and a valve assembly according to any one of claims 1-5.
7. A seat comprising the pneumatic massage system of claim 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311407936.1A CN117287517B (en) | 2023-10-26 | 2023-10-26 | Valve assembly, pneumatic massage system and seat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311407936.1A CN117287517B (en) | 2023-10-26 | 2023-10-26 | Valve assembly, pneumatic massage system and seat |
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| Publication Number | Publication Date |
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| CN117287517A CN117287517A (en) | 2023-12-26 |
| CN117287517B true CN117287517B (en) | 2025-10-31 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN221221471U (en) * | 2023-10-26 | 2024-06-25 | 惠州市唐群座椅科技股份有限公司 | Valve assembly, pneumatic massage system and seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017116841B4 (en) * | 2017-07-25 | 2025-02-27 | Alfmeier Präzision SE | valve and valve arrangement |
| DE102019201591B4 (en) * | 2019-02-07 | 2025-05-28 | Bühler Motor GmbH | Airplane seat massage system and airplane seat with a massage system |
| CN114699291B (en) * | 2021-11-24 | 2024-05-03 | 重庆安道拓汽车部件系统有限公司 | Automobile seat, massage chair and massage mechanism |
| CN219769706U (en) * | 2023-03-17 | 2023-09-29 | 深圳和而泰汽车电子科技有限公司 | Seat massage system and seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN221221471U (en) * | 2023-10-26 | 2024-06-25 | 惠州市唐群座椅科技股份有限公司 | Valve assembly, pneumatic massage system and seat |
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