Gas exchange valve module and combination valve

Abstract

The utility model relates to the technical field of air valves, and particularly provides a scavenging air valve module and a combination valve. A containing groove is formed in the air valve shell, and a sliding rod and a memory alloy strip are arranged in the containing groove. The sliding rod is arranged in the containing groove in a penetrating mode, and one end of the sliding rod is provided with a sealing structural part. The memory alloy strip is electrified to deform and drives the sliding rod to slide in the extending direction of the containing groove, and the sliding rod drives the sealing structural part to get close to and block the air-bleed hole. Or, the memory alloy strip is powered off to deform and drives the sealing structural part to be far away from the vent hole through the sliding rod, so that the vent hole is opened. The telescopic characteristic of the memory alloy strip is used as a power source, the structure of the air valve is simplified, the size and weight of the air valve are effectively reduced, and the manufacturing cost can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of gas valves, and in particular to a gas exchange valve module and a combination valve. Background Art

[0002] Massage equipment, air conditioning equipment, medical rehabilitation equipment, etc. have become an indispensable part of people's lives, and the requirements for their comfort and intelligence are getting higher and higher. In these devices, the control of the air valve is a key link, which can control the flow of gas to achieve various functions. The prior art usually uses a solenoid valve with a complex structure, which is not only costly, but also large in size and weight, making it difficult to replace. Therefore, the ventilation valve module and combination valve provided by the prior art are not convenient for use in portable devices. Utility Model Content

[0003] The purpose of the present application is to provide a ventilation valve module and a combination valve, which utilize the expansion and contraction characteristics of the memory alloy strip as a power source, which not only simplifies the valve structure, effectively reduces the volume and weight of the valve, but also reduces the manufacturing cost.

[0004] The embodiment of the present application is implemented as follows:

[0005] In the first aspect, an embodiment of the present application provides a ventilation valve module, comprising an air valve housing and a connecting air passage with an air vent; the air valve housing has a receiving groove, and a sliding rod and a memory alloy strip are arranged in the receiving groove; the sliding rod is inserted into the receiving groove and a sealing structure is arranged at one end; the memory alloy strip is deformed when powered on and drives the sliding rod to slide in the extension direction of the receiving groove, and the sliding rod drives the sealing structure to approach and block the air vent; or, the memory alloy strip is deformed when powered off and drives the sealing structure away from the air vent through the sliding rod, so that the air vent is opened.

[0006] As an optional embodiment, an elastic part connected to the other end of the sliding rod is also provided in the accommodating groove. When the memory alloy strip is energized and deformed, it drives the sliding rod to squeeze the elastic part. When the memory alloy strip is de-energized, the elastic force generated by the elastic part can push the sealing structure to move away from the vent hole through the sliding rod, so that the sealing structure opens the vent hole.

[0007] As an optional embodiment, the connecting air duct includes an air inlet duct and an air outlet duct; when the sealing structure blocks the air vent hole, the air inlet duct is connected to the air outlet duct so that the air flow enters the air outlet duct through the air inlet duct; when the air vent hole is opened, the sealing structure can block the air inlet hole formed at the connection between the air inlet duct and the air outlet duct, so that the air flow enters the external environment connected to the air vent hole through the air inlet duct.

[0008] As an optional implementation, the air release hole and the air inlet hole are respectively located on both sides of the sealing structure and arranged along the movement path of the sealing structure. When the sealing structure moves away from the air release hole, the air inlet hole can be blocked.

[0009] As an optional implementation, the valve housing is provided with a plurality of accommodating grooves arranged in parallel and at intervals, and a sealing structure is provided in each accommodating groove.

[0010] As an optional implementation, there are multiple air outlet pipes and they are spaced apart along the axial direction of the air inlet pipe, and the extending direction of the air inlet pipe is perpendicular to the extending direction of the accommodating groove.

[0011] As an optional implementation, the vent hole is filled with noise reduction cotton.

[0012] As an optional implementation, the air valve housing includes a main housing and an air valve base; the main housing and the air valve base are connected via a snap-fit ​​structure, and the connecting air channel is arranged on a side of the main housing away from the air valve base.

[0013] As an optional embodiment, a pressed sheet metal part is arranged inside the valve housing, and a wiring terminal electrically connected to the pressed sheet metal part is arranged outside the valve housing; one end of the memory alloy strip is connected to the sliding rod, and the other end is electrically connected to the pressed sheet metal part.

[0014] In a second aspect, an embodiment of the present application provides a combination valve, comprising a plurality of the above-mentioned ventilation valve modules; adjacent ventilation valve modules are connected to the airways via a switching assembly.

[0015] The beneficial effects of the embodiments of the present application include:

[0016] In the first aspect, the embodiment of the present application provides a ventilation valve module, including a valve housing and a connecting airway with a venting hole; the valve housing of the embodiment of the present application has a receiving groove, and a sliding rod and a memory alloy strip are arranged in the receiving groove; the sliding rod is inserted in the receiving groove and a sealing structure is arranged at one end; the memory alloy strip of the embodiment of the present application is energized and deformed and drives the sliding rod to slide in the extending direction of the receiving groove, and the sliding rod drives the sealing structure to approach and block the venting hole; the memory alloy strip of the embodiment of the present application is de-energized and drives the sealing structure away from the venting hole through the sliding rod, so that the venting hole is opened. Compared with the prior art, the embodiment of the present application adopts a memory alloy strip as a power source, and the memory alloy strip is contracted or extended by energizing and de-energizing. The present application has a compact structure, simplifies the valve structure, and effectively reduces the volume and weight of the valve, so that the ventilation valve module is easy to install in a portable device with a small volume. Since the ventilation valve module provided by the embodiment of the present application is small in volume and light in weight, it is convenient to disassemble and assemble.

[0017] On the second aspect, the embodiment of the present application provides a combination valve, including a plurality of the above-mentioned ventilation valve modules; adjacent ventilation valve modules are connected to the airways through a switching assembly. The combination valve provided in the embodiment of the present application includes a plurality of the above-mentioned ventilation valve modules, so it is possible to realize the control function of multiple airways and meet the requirements of different types of equipment for the number of air valves. The embodiment of the present application utilizes the telescopic characteristics of the memory alloy strip as a power source, which can greatly reduce the weight and volume of the combination valve. In addition, the embodiment of the present application uses the memory alloy strip as a power source, which does not generate a lot of noise when it is energized to contract and extend, and can effectively reduce noise pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is one of the structural schematic diagrams of the ventilation valve module of the embodiment of the present application;

[0020] Figure 2 This is the second structural schematic diagram of the ventilation valve module of the embodiment of the present application;

[0021] Figure 3 This is one of the structural schematic diagrams of the combination valve according to the embodiment of the present application;

[0022] Figure 4 This is the second structural diagram of the combination valve according to the embodiment of the present application;

[0023] Figure 5 This is the third structural diagram of the combination valve according to the embodiment of the present application;

[0024] Figure 6 This is the fourth structural schematic diagram of the combination valve according to the embodiment of the present application.

[0025] icon:

[0026] 100-air exchange valve module; 101-air valve housing; 102-connecting airway; 103-accommodating groove; 104-sliding rod; 105-memory alloy strip; 106-sealing structural member; 107-elastic member; 108-inlet pipe; 109-outlet pipe; 110-inlet hole; 111-main housing; 112-air valve base; 113-wiring terminal; 114-combination valve; 115-adapter assembly; 116-vent hole; 117-port plugging member. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0030] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0031] Massage equipment, air conditioning equipment, medical rehabilitation equipment, etc. have become an indispensable part of people's lives, and the requirements for their comfort and intelligence are getting higher and higher. In these devices, the control of the air valve is a key link, which can control the flow of gas to achieve various functions. The prior art usually uses a solenoid valve with a complex structure, which is not only costly, but also large in size and weight, making it difficult to replace. Therefore, the ventilation valve module 100 and the combination valve 114 provided by the prior art are not convenient for use in portable devices.

[0032] In order to solve the above technical problems, the embodiment of the present application provides a ventilation valve module 100 and a combination valve 114.

[0033] Reference Figure 1 and Figure 2As shown, an embodiment of the present application provides a ventilation valve module 100, including a valve housing 101 and a connecting airway 102 with a vent hole 116; the valve housing 101 has a receiving groove 103, and a sliding rod 104 and a memory alloy strip 105 are arranged in the receiving groove 103; the sliding rod 104 is inserted into the receiving groove 103 and a sealing structure 106 is arranged at one end; the memory alloy strip 105 is deformed when powered on and drives the sliding rod 104 to slide in the extension direction of the receiving groove 103, and the sliding rod 104 drives the sealing structure 106 to approach and block the vent hole 116; or, the memory alloy strip 105 is deformed when powered off and drives the sealing structure 106 away from the vent hole 116 through the sliding rod 104, so that the vent hole 116 is opened.

[0034] It should be noted that the memory alloy strip 105 provided in the embodiment of the present application is a U-shaped strip, an alloy strip connecting hole is provided on the sliding rod 104, and both ends of the memory alloy strip 105 are respectively fixed on the valve housing 101 and connected to the power supply through the wiring terminal 113.

[0035] The bottom of the memory alloy strip 105 is inserted into the alloy strip connection hole, and the strip structures at both ends of the memory alloy strip 105 are respectively located on both sides of the extending direction of the sliding rod 104 .

[0036] It should be noted that the memory alloy strip 105 contracts when energized. By arranging the memory alloy strips 105 on both sides of the extending direction of the sliding rod 104, a uniform and symmetrical traction force can be formed on the sliding rod 104, so that the sliding rod 104 can drive the sealing structure 106 to move linearly smoothly.

[0037] It should be noted that the specific structure of the sealing structure 106 can be selected by those skilled in the art according to needs, and there is no special limitation on this.

[0038] Reference Figure 1 and Figure 2As shown, the ventilation valve module 100 provided in the embodiment of the present application includes a valve housing 101 and a connecting airway 102 with a vent hole 116; the valve housing 101 of the embodiment of the present application has a receiving groove 103, and a sliding rod 104 and a memory alloy strip 105 are arranged in the receiving groove 103; the sliding rod 104 is inserted into the receiving groove 103 and a sealing structure 106 is arranged at one end; the memory alloy strip 105 of the embodiment of the present application is energized and deformed and drives the sliding rod 104 to slide in the extending direction of the receiving groove 103, and the sliding rod 104 drives the sealing structure 106 to approach and block the vent hole 116; the memory alloy strip 105 of the embodiment of the present application is de-energized and deformed and drives the sealing structure 106 away from the vent hole 116 through the sliding rod 104, so that the vent hole 116 is opened. Compared with the prior art, the embodiment of the present application uses the memory alloy strip 105 as a power source, and the memory alloy strip 105 is contracted or extended by energizing and de-energizing.

[0039] The present invention has a compact structure and simplifies the valve structure, thereby effectively reducing the volume and weight of the valve, making it easy to install the air exchange valve module 100 in a small portable device. Since the air exchange valve module 100 provided in the embodiment of the present invention is small in volume and light in weight, it is easy to disassemble and assemble.

[0040] Reference Figure 1 As shown, as an optional embodiment, an elastic member 107 connected to the other end of the sliding rod 104 is also provided in the accommodating groove 103. When the memory alloy strip 105 is energized and deformed, it drives the sliding rod 104 to squeeze the elastic member 107. When the memory alloy strip 105 is de-energized, the elastic force generated by the elastic member 107 can push the sealing structure 106 to move away from the vent hole 116 through the sliding rod 104, so that the sealing structure 106 opens the vent hole 116.

[0041] Furthermore, the embodiment of the present application provides a stronger resilience force for the sliding rod 104 by arranging an elastic member 107 in the accommodating groove 103. When the memory alloy strip 105 contracts when powered on, it drives the sliding rod 104 to compress the elastic member 107, so the elastic member 107 can store elastic potential energy when powered on. When the memory alloy strip 105 extends and deforms after power is turned off, the elastic member 107 releases the elastic potential energy and has a strong driving force, so that the sealing structure 106 is away from the vent hole 116 and close to the air inlet hole 110 formed at the connection between the air inlet pipe 108 and the air outlet pipe 109.

[0042] It should be noted that the memory alloy will extend and deform after power is cut off, and the sliding rod 104 can be driven to move by the extension deformation without adding the elastic member 107. By adding the elastic member 107, the force of the memory alloy in the case of power cut off can be greatly enhanced, so that the driving force of the sealing structure 106 is sufficient, and reliable and accurate control can be achieved.

[0043] It should be noted that the elastic member 107 in the embodiment of the present application can be a spring element or a rubber elastic member 107, and those skilled in the art can make the selection according to their needs.

[0044] Reference Figure 1 As shown, as an optional embodiment, the connecting air duct 102 includes an air inlet duct 108 and an air outlet duct 109; when the sealing structure 106 blocks the air vent hole 116, the air inlet duct 108 is connected to the air outlet duct 109, so that the air flow enters the air outlet duct 109 through the air inlet duct 108; when the air vent hole 116 is opened, the sealing structure 106 can block the air inlet hole 110 formed at the connection between the air inlet duct 108 and the air outlet duct 109, so that the air flow enters the external environment connected to the air vent hole 116 through the air inlet duct 108.

[0045] Furthermore, the connecting air passage 102 of the embodiment of the present application includes an air inlet pipe 108 and an air outlet pipe 109 .

[0046] An air inlet hole 110 is formed at the connection point between the air inlet pipe 108 and the air outlet pipe 109 in the embodiment of the present application.

[0047] It should be noted that when the memory alloy contracts when energized, the sealing structure 106 blocks the vent hole 116, and the air inlet pipe 108 is connected to the air outlet pipe 109, so that the gas introduced into the air inlet pipe 108 can enter the air outlet pipe 109 through the air inlet hole 110, and this process can perform an inflation operation.

[0048] It should be noted that when the memory alloy is powered off and extended, the sealing structure 106 opens the vent hole 116 and blocks the air inlet hole 110, that is, the air inlet pipe 108 is disconnected from the air outlet pipe 109, and the air inlet pipe 108 is connected to the vent hole 116. At this time, the airflow entering the air inlet pipe 108 enters the external environment through the vent hole 116, realizing the deflation operation.

[0049] It should be noted that those skilled in the art can connect the air intake pipe 108 and the air exhaust pipe to the air path that needs to be controlled as needed, and this embodiment of the present application does not limit this.

[0050] Reference Figure 1 As shown, preferably, the air release hole 116 and the air inlet hole 110 are respectively located on both sides of the sealing structure 106 and arranged along the movement path of the sealing structure 106. When the sealing structure 106 moves away from the air release hole 116, the air inlet hole 110 can be blocked.

[0051] Reference Figure 1 As shown, as an optional implementation, a plurality of accommodating grooves 103 arranged in parallel and at intervals are provided on the air valve housing 101 , and a sealing structure 106 is provided in each accommodating groove 103 .

[0052] It should be noted that a plurality of receiving grooves 103 are provided on the valve housing 101 of the embodiment of the present application, and a sliding rod 104 , a sealing structure 106 , a memory alloy strip 105 and an elastic member 107 are provided in each receiving groove 103 .

[0053] Reference Figure 1 As shown, the embodiment of the present application has multiple outlet pipes 109 and is arranged at intervals along the axial direction of the inlet pipe 108, and the extension direction of the inlet pipe 108 is perpendicular to the extension direction of the receiving groove 103. Among them, the number of outlet pipes 109 is consistent with the number of receiving grooves 103, so that multiple receiving grooves 103 and multiple outlet pipes 109 can correspond one to one. Since each receiving groove 103 is provided with a sealing structure 106 and a driving structure formed by a memory alloy strip 105, the embodiment of the present application can control the on-off of multiple outlet pipes 109 on an inlet pipe 108, so that the ventilation valve module 100 has stronger functionality, can meet more needs, and effectively solves the diversified requirements of different devices for the number of air valves.

[0054] As an optional implementation, the air release hole 116 is filled with noise reduction cotton.

[0055] Furthermore, in the embodiment of the present application, the vent hole 116 is filled with noise reduction cotton. The setting of the noise reduction cotton can effectively reduce the noise generated when the airflow passes through the vent hole 116. Therefore, the ventilation valve module 100 provided in the embodiment of the present application will not generate loud noise during use.

[0056] Reference Figure 2 As shown, as an optional embodiment, the air valve housing 101 includes a main housing 111 and an air valve base 112; the main housing 111 and the air valve base 112 are connected by a snap-fit ​​structure, and the connecting air duct 102 is arranged on the side of the main housing 111 away from the air valve base 112.

[0057] Among them, a pressed sheet metal part is arranged inside the valve housing 101, and a terminal 113 electrically connected to the pressed sheet metal part is arranged outside the valve housing 101; one end of the memory alloy strip 105 is connected to the sliding rod 104, and the other end is electrically connected to the pressed sheet metal part.

[0058] Reference Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As shown, an embodiment of the present application provides a combination valve 114 , comprising a plurality of the above-mentioned ventilation valve modules 100 ; adjacent ventilation valve modules 100 are connected to the airway 102 via a switching assembly 115 .

[0059] It should be noted that the adapter assembly 115 may be a quick-change structure with a rubber ring disposed inside the quick-change joint, or may be a hollow rubber structure.

[0060] In the embodiment of the present application, two adjacent air exchange valve modules 100 can be quickly connected by a quick-change joint and a rubber ring, and the two air exchange valve modules 100 squeeze the rubber ring against the quick-change joint to produce a sealing effect. In this way, no matter how many air valves the device needs, it can be achieved through a simple connection method, meeting the requirements of different models of equipment for the number of air valves.

[0061] The adapter assembly 115 can connect two adjacent air inlet pipes 108. The ports of the air inlet pipe 108 or the air outlet pipe 109 can be sealed with a port plugging member 117.

[0062] The combination valve 114 provided in the embodiment of the present application includes a plurality of the above-mentioned ventilation valve modules 100, so that the control function of multiple airways can be realized, and the requirements for the number of air valves of different types of equipment can be met. The embodiment of the present application utilizes the telescopic characteristics of the memory alloy strip 105 as a power source, which can greatly reduce the weight and volume of the combination valve 114. In addition, the embodiment of the present application uses the memory alloy strip 105 as a power source, which does not generate a large noise when it is energized to shrink and extend. In addition, the noise generated during deflation is greatly reduced by the provision of sound insulation cotton. Therefore, the present application can effectively reduce noise pollution and improve user comfort.

[0063] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ventilation valve module, characterized in that: The invention comprises an air valve housing (101) and a connecting air passage (102) provided with an air release hole (116); the air valve housing (101) has a receiving groove (103), and a sliding rod (104) and a memory alloy strip (105) are arranged in the receiving groove (103); the sliding rod (104) is inserted into the receiving groove (103) and a sealing structure (106) is arranged at one end; the memory alloy strip (105) is deformed when powered on and drives the sliding rod (104) to slide in the extending direction of the receiving groove (103), and the sliding rod (104) drives the sealing structure (106) to approach and block the air release hole (116); or, the memory alloy strip (105) is deformed when powered off and drives the sealing structure (106) to move away from the air release hole (116) through the sliding rod (104), so that the air release hole (116) is opened.

2. The ventilation valve module according to claim 1, characterized in that: An elastic member (107) connected to the other end of the sliding rod (104) is also provided in the accommodating groove (103). When the memory alloy strip (105) is energized and deformed, it drives the sliding rod (104) to squeeze the elastic member (107). When the memory alloy strip (105) is de-energized, the elastic force generated by the elastic member (107) can push the sealing structure (106) to move away from the venting hole (116) through the sliding rod (104), so that the sealing structure (106) opens the venting hole (116).

3. The ventilation valve module according to claim 1, characterized in that: The connecting air passage (102) comprises an air inlet pipe (108) and an air outlet pipe (109); when the sealing structure (106) blocks the air release hole (116), the air inlet pipe (108) is connected to the air outlet pipe (109), so that the air flow enters the air outlet pipe (109) through the air inlet pipe (108); when the air release hole (116) is opened, the sealing structure (106) can block the air inlet hole (110) formed at the connection between the air inlet pipe (108) and the air outlet pipe (109), so that the air flow enters the external environment connected to the air release hole (116) through the air inlet pipe (108).

4. The ventilation valve module according to claim 3, characterized in that: The air release hole (116) and the air inlet hole (110) are respectively located on both sides of the sealing structure (106) and arranged along the movement path of the sealing structure (106); when the sealing structure (106) moves away from the air release hole (116), the air inlet hole (110) can be blocked.

5. The ventilation valve module according to any one of claims 1 to 4, characterized in that: The air valve housing (101) is provided with a plurality of accommodating grooves (103) arranged in parallel and at intervals, and each accommodating groove (103) is provided with a sealing structural component (106).

6. The ventilation valve module according to claim 3 or 4, characterized in that: There are a plurality of the air outlet pipes (109) which are arranged at intervals along the axial direction of the air inlet pipe (108); the extending direction of the air inlet pipe (108) is perpendicular to the extending direction of the containing groove (103).

7. The ventilation valve module according to any one of claims 1 to 4, characterized in that: The air release hole (116) is filled with noise reduction cotton.

8. The ventilation valve module according to any one of claims 1 to 4, characterized in that: The air valve housing (101) comprises a main housing (111) and an air valve base (112); the main housing (111) and the air valve base (112) are connected via a clamping structure, and the connecting air channel (102) is arranged on a side of the main housing (111) away from the air valve base (112).

9. The ventilation valve module according to any one of claims 1 to 4, characterized in that: A pressed sheet metal part is arranged inside the air valve housing (101), and a connection terminal (113) electrically connected to the pressed sheet metal part is arranged outside the air valve housing (101); one end of the memory alloy strip (105) is connected to the sliding rod (104), and the other end is electrically connected to the pressed sheet metal part.

10. A combination valve, characterized in that: It comprises a plurality of ventilation valve modules (100) according to any one of claims 1 to 9; adjacent ventilation valve modules (100) are connected to the airway (102) via a switching assembly (115).

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