Air valve assembly and airwave pressure therapeutic apparatus

Abstract

The utility model relates to an air valve assembly and an airwave pressure therapeutic apparatus, the air valve assembly comprises a mounting seat, an air guide structure and a control member, and the mounting seat is provided with a first through hole and an air release channel; the air guide structure is provided with a buffer groove, an air outlet channel, an air inlet channel and a first air guide hole; the buffer groove is communicated with the air outlet channel; the first air guide hole communicates with the buffer groove and the air inlet channel; the control piece comprises a driving part and a movable part. The driving part is arranged on the side, away from the air guide structure, of the mounting base. The driving part is configured to drive the movable part to move between a first position and a second position; when the movable part is located at the first position, the movable part is in sealing fit with the first through hole so as to block communication between the buffer groove and the air leakage channel; when the movable part is located at the second position, the movable part is in sealing fit with the first air guide hole, so that the buffer groove is communicated with the air leakage channel through the first through hole, and communication between the buffer groove and the air inlet channel is blocked, and therefore air inflation and air leakage can be conveniently controlled, the air leakage risk is reduced, the assembly difficulty is reduced, and the assembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to an air valve assembly and an airwave pressure therapy instrument. BACKGROUND

[0002] The airwave pressure therapy instrument is a rehabilitation medical device for preventing deep vein thrombosis and pulmonary embolism by periodically inflating and deflating airbags to squeeze and massage limbs and increase the venous blood flow of patients at risk of venous thrombosis, thereby greatly increasing the blood flow speed and reducing blood stasis.

[0003] In the related art, the air valve in the airwave pressure therapy instrument is connected to the air outlet interface through a pipeline to control the inflation and deflation of the airbag. However, due to the complex pipeline position, large pipeline space occupation, and easy pipeline falling off, the airwave pressure therapy instrument has high assembly difficulty, low assembly efficiency, and is prone to air leakage. UTILITARIAN CONTENT

[0004] Therefore, the present application provides an integrated air valve assembly and an airwave pressure therapy instrument, which can conveniently control inflation and deflation, reduce the risk of air leakage, reduce assembly difficulty, and improve assembly efficiency.

[0005] In a first aspect, an air valve assembly is provided, comprising:

[0006] a mounting seat provided with a first through hole and a deflation passage in communication with the first through hole;

[0007] a gas guide structure connected to the mounting seat, the gas guide structure being provided with a buffer groove, an air outlet passage, an air inlet passage, and a first gas guide hole; the buffer groove is arranged on the side of the gas guide structure close to the mounting seat and in communication with the air outlet passage; the first gas guide hole communicates the buffer groove and the air inlet passage;

[0008] a control member comprising a driving portion and a movable portion connected to each other, the driving portion being arranged on the side of the mounting seat away from the gas guide structure; the driving portion is configured to drive the movable portion to move along the axial direction of the first through hole between a first position and a second position;

[0009] when the movable portion is in the first position, the movable portion is in sealing engagement with the first through hole to block the communication between the buffer groove and the deflation passage;

[0010] when the movable portion is in the second position, the movable portion is in sealing engagement with the first gas guide hole to make the buffer groove communicate with the deflation passage through the first through hole and block the communication between the buffer groove and the air inlet passage.

[0011] In one of the embodiments, the movable part is movably arranged in the first through hole, and an end of the movable part away from the driving part is arranged in the buffer groove, and the end of the movable part away from the driving part is provided with a first sealing pad;

[0012] When the movable part is in the first position, the first sealing pad abuts against an end of the first through hole close to the buffer groove to block the communication between the buffer groove and the air exhaust passage;

[0013] When the movable part is in the second position, the first sealing pad abuts against an end of the first air guide hole close to the first through hole to make the buffer groove communicate with the air exhaust passage through the first through hole and block the communication between the buffer groove and the air inlet passage.

[0014] In one of the embodiments, a first protrusion is arranged in the buffer groove, the first protrusion is provided with a second through hole in communication with the first air guide hole, and a central axis of the second through hole coincides with a central axis of the first through hole; when the movable part is in the second position, the first sealing pad abuts against the first protrusion.

[0015] In one of the embodiments, a first annular boss is arranged on a side of the mounting base close to the air guide structure, the first annular boss is arranged around the first through hole and is in communication with the first through hole;

[0016] When the movable part is in the first position, the first sealing pad abuts against the first annular boss.

[0017] In one of the embodiments, a first annular groove is arranged on a side of the mounting base close to the air guide structure, the first annular groove is arranged around the first annular boss;

[0018] A second annular boss is arranged on a side of the air guide structure close to the mounting base, the second annular boss is arranged around the buffer groove; and the second annular boss is arranged in the first annular groove.

[0019] In one of the embodiments, a third annular boss is arranged on a side of the mounting base away from the air guide structure;

[0020] The third annular boss is arranged around the first through hole; a side wall of the third annular boss is provided with an air exhaust hole, and the air exhaust hole and an inner space of the third annular boss jointly define an air exhaust passage in communication with the first through hole;

[0021] The driving part is connected to the third annular boss.

[0022] In one of the embodiments, the number of the buffer grooves is plural, and the plural buffer grooves are arranged at intervals on the side of the air guide structure close to the mounting base;

[0023] The number of the first through holes is plural, and the plural first through holes are arranged at intervals on the mounting base and correspond to the plural buffer grooves one by one;

[0024] The number of the first air guide holes is plural, and the plural first air guide holes are arranged at intervals in the air guide structure; each first air guide hole communicates the air inlet channel and the corresponding buffer groove;

[0025] The number of the control members is plural, and the plural control members correspond to the plural first through holes one by one; the driving part of each control member is configured to drive the movable part to move along the axial direction of the corresponding first through hole between a first position and a second position.

[0026] In one of the embodiments, the number of the air outlet channels is plural, and the plural air outlet channels correspond to the plural buffer grooves one by one;

[0027] The air guide structure is provided with an air inlet interface and plural air outlet interfaces; the air inlet interface communicates with the air inlet channel, and the plural air outlet interfaces correspond to the plural air outlet channels one by one.

[0028] In one of the embodiments, the air guide structure comprises:

[0029] The air guide plate comprises oppositely arranged first and second surfaces; the plural buffer grooves are arranged at intervals on the first surface, and the second surface is arranged with plural gas flow channels; the air guide plate is arranged with plural second air guide holes; each second air guide hole communicates the corresponding gas flow channel and the buffer groove; the plural first air guide holes and the air inlet channel are arranged in the air guide plate;

[0030] The cover plate is sealingly fitted on the second surface of the air guide plate; the plural gas flow channels and the cover plate jointly define plural air outlet channels; and the plural air outlet interfaces are arranged on the cover plate.

[0031] In a second aspect, the embodiments of the present application provide an air wave pressure therapy instrument, which comprises the air valve assembly in any of the above embodiments.

[0032] The gas valve assembly comprises a mounting seat, a gas guide structure and a control member, the mounting seat is provided with a first through hole and a gas discharge channel communicated with the first through hole; the gas guide structure is provided with a buffer groove, a gas outlet channel, a gas inlet channel and a first gas guide hole, the buffer groove is arranged on the side of the gas guide structure close to the mounting seat and communicated with the gas outlet channel, and the first gas guide hole communicates the buffer groove and the gas inlet channel; the driving part of the control member is configured to drive the movable part to move between the first position and the second position along the axial direction of the first through hole; when inflation is needed, the driving part of the control member drives the movable part to move to the first position, the movable part is in sealing fit with the first through hole, the communication between the buffer groove and the gas discharge channel is blocked, and the gas entering the gas inlet channel enters the gas outlet channel through the first gas guide hole and the buffer groove, so that inflation can be realized; when deflation is needed, the driving part of the control member drives the movable part to move to the second position, the movable part is in sealing fit with the first gas guide hole, so that the communication between the buffer groove and the gas inlet channel is blocked, and the gas inlet is stopped, the gas to be discharged returns to the gas outlet channel and reaches the gas discharge channel through the buffer groove and the first through hole, and is discharged through the gas discharge channel, so that deflation can be realized, that is, through the cooperation of the gas guide structure, the mounting seat and the control member, inflation and deflation can be conveniently controlled; in addition, by integrating the gas inlet channel, the gas outlet channel, the buffer groove and the first gas guide hole on the gas guide structure, and arranging the first through hole and the gas discharge channel on the mounting seat, inflation and deflation can be realized without external pipeline, so that the probability of gas leakage of the gas valve assembly can be reduced, the integration degree of the gas valve assembly can be improved, the assembly of the gas valve assembly is facilitated, and the assembly efficiency is improved. In summary, the application can conveniently control inflation and deflation, reduce the risk of gas leakage, reduce the assembly difficulty and improve the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 The structure schematic diagram of the gas valve assembly provided for some embodiments of the application is shown.

[0034] Figure 2 The exploded structure schematic diagram of the gas valve assembly provided for some embodiments of the application is shown.

[0035] Figure 3 The structure schematic diagram of the gas valve assembly provided for some embodiments of the application is shown. Figure 2 The local structure schematic diagram of the gas valve assembly is shown.

[0036] Figure 4 The structure schematic diagram of the gas guide plate of the gas guide structure in the gas valve assembly provided for some embodiments of the application is shown.

[0037] Figure 5 The structure schematic diagram of the gas guide plate of the gas guide structure in the gas valve assembly provided for some embodiments of the application is shown.

[0038] Figure 6 The structure schematic diagram of the gas guide plate of the gas guide structure in the gas valve assembly provided for some embodiments of the application is shown.

[0039] Figure 7 Structure diagram of the cover plate of the air guide structure in the air valve assembly according to some embodiments of the present application.

[0040] Figure 8 Structure diagram of the connection between the air guide structure and the mounting seat in the air valve assembly according to some embodiments of the present application.

[0041] Figure 9 Structure diagram of the mounting seat in the air valve assembly according to some embodiments of the present application.

[0042] Figure 10 Another structure diagram of the mounting seat in the air valve assembly according to some embodiments of the present application.

[0043] Explanation of reference signs:

[0044] 10, air valve assembly; 11, mounting seat; 111, first through hole; 112, air release channel; 12, air guide structure; 12a, air guide plate; 12a1, first surface; 12a2, second surface; 12b, cover plate; 121, buffer groove; 122, air outlet channel; 122a, gas flow channel; 123, air inlet channel; 124, first air guide hole; 125, second air guide hole; 126, air inlet interface; 127, air outlet interface; 13, control member; 131, driving part; 14, first protrusion; 141, second through hole; 15, first annular boss; 16, first annular groove; 17, second annular boss; 18, third annular boss; 19, air release hole; 201, second sealing gasket; 202, first mounting through hole; 203, second mounting through hole; 204, third mounting through hole; 205, fastener. DETAILED DESCRIPTION

[0045] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0046] In the description of the application, it should be understood that, if there are these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0047] In addition, if there are these terms "first", "second", these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, if the term "multiple" appears, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0048] In this application, unless otherwise explicitly specified and limited, if there are terms such as "mounting", "connecting", "connecting", "fixing" and the like, these terms should be broadly understood. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0049] In this application, unless otherwise explicitly specified and limited, if there are similar descriptions such as "first feature on or under second feature", the meaning can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0050] It is to be noted that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, it is to be understood that when a layer is referred to as being "connected", "coupled", or "adjacent" to another element, it can be directly connected, coupled, or adjacent to the other element, or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. As used herein, the term "about" when used in reference to a particular recited numerical value, means that the value can vary from the recited value by no more than 1%, 2%, 5%, or 10%. As used herein, the terms "vertical", "horizontal", "up", "down", "left", "right", and similar terms are used for explanation only, and are not to be taken literally unless otherwise indicated.

[0051] In a first aspect, referring to Figure 1 , Figure 2 , Figures 4 to 6 and Figure 10 , the gas valve assembly 10 provided by the embodiments of the present application includes a mounting seat 11, a gas guiding structure 12, and a control member 13. The mounting seat 11 is provided with a first through hole 111 and a gas release passage 112 in communication with the first through hole 111. The gas guiding structure 12 is connected to the mounting seat 11. The gas guiding structure 12 is provided with a buffer groove 121, a gas outlet passage 122, a gas inlet passage 123, and a first gas guiding hole 124. The buffer groove 121 is arranged on the side of the gas guiding structure 12 close to the mounting seat 11 and is in communication with the gas outlet passage 122. The first gas guiding hole 124 is in communication with the buffer groove 121 and the gas inlet passage 123. The control member 13 includes a driving portion 131 and a movable portion (not shown) connected to each other. The driving portion 131 is arranged on the side of the mounting seat 11 away from the gas guiding structure 12. The driving portion 131 is configured to drive the movable portion to move along the axial direction of the first through hole 111 between a first position and a second position. When the movable portion is at the first position, the movable portion is in sealing engagement with the first through hole 111 to block the communication between the buffer groove 121 and the gas release passage 112. When the movable portion is at the second position, the movable portion is in sealing engagement with the first gas guiding hole 124 to make the buffer groove 121 communicate with the gas release passage 112 through the first through hole 111 and block the communication between the buffer groove 121 and the gas inlet passage 123.

[0052] The air valve assembly 10 provided by the embodiment of the application comprises a mounting seat 11, a gas guide structure 12 and a control member 13. The mounting seat 11 is provided with a first through hole 111 and a gas discharge channel 112 in communication with the first through hole 111. The gas guide structure 12 is provided with a buffer groove 121, a gas outlet channel 122, a gas inlet channel 123 and a first gas guide hole 124. The buffer groove 121 is arranged on the side of the gas guide structure 12 close to the mounting seat 11 and in communication with the gas outlet channel 122. The first gas guide hole 124 communicates the buffer groove 121 and the gas inlet channel 123. The driving part 131 of the control member 13 is configured to drive the movable part to move along the axial direction of the first through hole 111 between the first position and the second position. When air charging is needed, the driving part 131 of the control member 13 drives the movable part to move to the first position. The movable part is in sealing cooperation with the first through hole 111, thereby blocking the communication between the buffer groove 121 and the gas discharge channel 112. The gas entering the gas inlet channel 123 enters the gas outlet channel 122 through the first gas guide hole 124 and the buffer groove 121, so that air charging can be realized. When air discharge is needed, the driving part 131 of the control member 13 drives the movable part to move to the second position. The movable part is in sealing cooperation with the first gas guide hole 124, thereby blocking the communication between the buffer groove 121 and the gas inlet channel 123, stopping air intake, and the gas to be discharged returns to the gas outlet channel 122 and reaches the gas discharge channel 112 through the buffer groove 121 and the first through hole 111, and is discharged through the gas discharge channel 112, so that air discharge can be realized. That is, through the cooperation of the gas guide structure 12, the mounting seat 11 and the control member 13, the charging and discharging can be conveniently controlled. In addition, by integrating the gas inlet channel 123, the gas outlet channel 122, the buffer groove 121 and the first gas guide hole 124 on the gas guide structure 12, and arranging the first through hole 111 and the gas discharge channel 112 on the mounting seat 11, the charging and discharging can be realized without external pipeline, so that the probability of air leakage of the air valve assembly 10 can be reduced, the integration degree of the air valve assembly 10 can be improved, the assembly of the air valve assembly 10 is facilitated, and the assembly efficiency is improved. In summary, the application can facilitate the control of charging and discharging, reduce the risk of air leakage, reduce the assembly difficulty and improve the assembly efficiency.

[0053] It can be understood that the control member 13 can be an electromagnetic valve, the movable part includes a valve core, and the driving part 131 includes an iron core, an electromagnetic coil, a return spring, a wiring terminal and the like.

[0054] In one of the embodiments, the movable part is movably arranged in the first through hole 111, and the end of the movable part away from the driving part 131 is located in the buffer groove 121, and the end of the movable part away from the driving part 131 is provided with a first sealing gasket (not shown). When the movable part is in the first position, the first sealing gasket abuts against the end of the first through hole 111 close to the buffer groove 121 to block the communication between the buffer groove 121 and the air release passage 112. When the movable part is in the second position, the first sealing gasket abuts against the end of the first air guide hole 124 close to the first through hole 111 to make the buffer groove 121 communicate with the air release passage 112 through the first through hole 111 and block the communication between the buffer groove 121 and the air inlet passage 123.

[0055] In this way, by arranging the first sealing gasket, the sealing cooperation between the movable part and the first through hole 111 when the movable part is in the first position and the sealing cooperation between the movable part and the first air guide hole 124 when the movable part is in the second position can be ensured, so that the air valve assembly 10 can effectively control the air charging and releasing and reduce the probability of air leakage of the air valve assembly 10.

[0056] It should be noted that the first sealing gasket can be a silica gel sealing gasket.

[0057] Referring to Figure 4 and Figure 5 In one of the embodiments, a first protrusion 14 is arranged in the buffer groove 121, and the first protrusion 14 is provided with a second through hole 141 in communication with the first air guide hole 124, and the central axis of the second through hole 141 coincides with the central axis of the first through hole 111. When the movable part is in the second position, the first sealing gasket abuts against the first protrusion 14.

[0058] In this way, by arranging the first protrusion 14, the second through hole 141 in communication with the first air guide hole 124 is arranged on the first protrusion 14, the central axis of the second through hole 141 coincides with the central axis of the first through hole 111, so that the coaxiality of the second through hole 141, the first through hole 111 and the movable part can be improved. Therefore, when the driving part 131 drives the movable part to move along the axial direction of the first through hole 111 towards the second position, it can be ensured that the first sealing gasket on the movable part can abut against the first protrusion 14 reliably to block the communication between the second through hole 141 and the buffer groove 121, so as to block the communication between the air inlet passage 123 and the buffer groove 121 to release air.

[0059] Referring to Figure 9 In one of the embodiments, the mounting seat 11 is provided with a first annular boss 15 close to the air guide structure 12, the first annular boss 15 is arranged around the first through hole 111 and communicates with the first through hole 111, and when the movable part is in the first position, the first sealing gasket abuts against the first annular boss 15.

[0060] Thus, by arranging the first annular boss 15 on the side of the mounting base 11 close to the air guide structure 12, the first annular boss 15 is arranged around and communicates with the first through hole 111. When air charging is needed, the movable part is driven by the driving part 131 to move along the axial direction of the first through hole 111 to the first position, and the first sealing gasket on the movable part abuts against the first annular boss 15, thereby blocking the communication between the first through hole 111 and the buffer groove 121, so as to charge air and avoid air leakage.

[0061] Referring to Figure 5 and Figure 9 In one embodiment, the mounting base 11 is provided with a first annular groove 16 on the side close to the air guide structure 12, and the first annular groove 16 is arranged around the first annular boss 15; the air guide structure 12 is provided with a second annular boss 17 on the side close to the mounting base 11, and the second annular boss 17 is arranged around the buffer groove 121; and the second annular boss 17 is arranged in the first annular groove 16.

[0062] Thus, by arranging the first annular groove 16 around the first annular boss 15 on the mounting base 11, and arranging the second annular boss 17 around the buffer groove 121 on the air guide structure 12, and arranging the second annular boss 17 in the first annular groove 16, the communication between the first through hole 111 and the buffer groove 121 can be ensured, and the air tightness of the communication between the first through hole 111 and the buffer groove 121 can be ensured, thereby reducing the probability of air leakage of the air valve assembly 10.

[0063] It can be understood that a sealing ring (not shown) can be arranged in the first annular groove 16, so that when the second annular boss 17 is arranged in the first annular groove 16, the second annular boss 17 can press against the sealing ring, thereby improving the air tightness of the communication between the first through hole 111 and the buffer groove 121.

[0064] Referring to Figure 10 In one embodiment, the mounting base 11 is provided with a third annular boss 18 on the side away from the air guide structure 12; the third annular boss 18 is arranged around the first through hole 111; the side wall of the third annular boss 18 is provided with a vent hole 19, and the vent hole 19 and the inner space of the third annular boss 18 together define a vent passage 112 communicating with the first through hole 111; and the driving part 131 is connected to the third annular boss 18.

[0065] Thus, by arranging the third annular boss 18 around the first through hole 111 on the side of the mounting seat 11 away from the air guide structure 12, opening the air release hole 19 on the side wall of the third annular boss 18, and connecting the driving part 131 to the third annular boss 18, the control part 13 can be conveniently mounted on the mounting seat 11, the influence of the released gas on the control part 13 is reduced, and the reliability of the air valve assembly 10 is improved.

[0066] Referring to Figure 2 , Figure 4 and Figure 9 , in one of the embodiments, the number of the buffer grooves 121 is multiple, the multiple buffer grooves 121 are arranged at intervals on the side of the air guide structure 12 close to the mounting seat 11; the number of the first through holes 111 is multiple, the multiple first through holes 111 are arranged at intervals on the mounting seat 11 and correspond to the multiple buffer grooves 121 one by one; the number of the first air guide holes 124 is multiple, the multiple first air guide holes 124 are arranged at intervals in the air guide structure 12, and each first air guide hole 124 communicates the air inlet channel 123 and the corresponding buffer groove 121; the number of the control parts 13 is multiple, and the multiple control parts 13 correspond to the multiple first through holes 111 one by one; the driving part 131 of each control part 13 is configured to drive the movable part to move along the axis of the corresponding first through hole 111 between the first position and the second position.

[0067] Thus, by controlling the movement of the movable parts of the multiple control parts 13, the communication between the corresponding buffer grooves 121 and the air inlet channel 123 can be controlled, and the air outlet amount of the air outlet channel 122 can be conveniently controlled.

[0068] Referring to Figure 7 and Figure 8 , in one of the embodiments, the number of the air outlet channels 122 is multiple, and the multiple air outlet channels 122 correspond to the multiple buffer grooves 121 one by one; the air guide structure 12 is provided with the air inlet interface 126 and the multiple air outlet interfaces 127, the air inlet interface 126 communicates with the air inlet channel 123, and the multiple air outlet interfaces 127 correspond to the multiple air outlet channels 122 one by one.

[0069] Thus, by controlling the movement of the movable parts of the multiple control parts 13, the pressure conditions of the multiple air outlet channels 122 can be controlled, and the pressure conditions of the multiple air outlet interfaces 127 can be controlled, so that when the air valve assembly 10 is applied to an air wave pressure therapy instrument, the real-time adjustment of the treatment range of the air wave pressure therapy instrument can be realized. In addition, by arranging the air inlet interface 126 and the multiple air outlet interfaces 127 on the air guide structure 12, the connection of the air inlet channel 123 with the external air supply device for air intake and the communication of the multiple air outlet channels 122 with the air bags for air inflation to different parts can be facilitated.

[0070] In one embodiment, the number of air guide structures 12 is multiple, and the multiple air guide structures 12 are arranged on the mounting base 11 in a spaced manner. Specifically, referring to Figure 1 、 Figure 2 and Figure 7 , the number of air guide structures 12 is two, and the two air guide structures 12 are arranged on the mounting base 11 in a spaced manner; each air guide structure 12 is arranged with four buffer grooves 121 in a spaced manner, and the mounting base 11 is arranged with two sets of through holes, and each set of through holes includes four first through holes 111.

[0071] Referring to Figures 1 to 6 , in one embodiment, the air guide structure 12 includes an air guide plate 12a and a cover plate 12b, the air guide plate 12a includes a first surface 12a1 and a second surface 12a2 arranged in a spaced manner, a plurality of buffer grooves 121 are arranged on the first surface 12a1 in a spaced manner, and a plurality of gas flow channels 122a are arranged on the second surface 12a2 in a spaced manner; a plurality of second air guide holes 125 are arranged in the air guide plate 12a, each second air guide hole 125 is connected with a corresponding gas flow channel 122a and buffer groove 121; a plurality of first air guide holes 124 and an air inlet channel 123 are arranged in the air guide plate 12a; the cover plate 12b is sealingly fitted on the second surface 12a2 of the air guide plate 12a, and the plurality of gas flow channels 122a and the cover plate 12b jointly define a plurality of air outlet channels 122; and a plurality of air outlet interfaces 127 are arranged on the cover plate 12b.

[0072] In this way, the gas flow channels 122a, the buffer grooves 121, the first air guide holes 124 and the second air guide holes 125 on the air guide structure 12 can be conveniently cleaned, and the service life of the air guide structure 12 is prolonged, so that the service life of the gas valve assembly 10 can be prolonged.

[0073] Referring to Figure 2 , in a specific example, a second sealing gasket 201 is arranged between the air guide plate 12a and the cover plate 12b, so as to ensure the sealing fit between the air guide plate 12a and the cover plate 12b.

[0074] Referring to Figure 2 and Figure 8 , in one embodiment, the gas valve assembly 10 further includes a plurality of fasteners 205, the mounting base 11 is arranged with a plurality of first mounting through holes 202 in a spaced manner, the air guide structure 12 is arranged with a plurality of second mounting through holes 203 in a spaced manner, and the driving part 131 of the control member 13 is arranged with a third mounting through hole 204 matched with the first mounting through hole 202 and the second mounting through hole 203; each fastener 205 is arranged through the first mounting through hole 202, the second mounting through hole 203 and the third mounting through hole 204, so as to connect the control member 13, the mounting base 11 and the air guide structure 12 into one body.

[0075] It is appreciated that the fastener 205 can include a fastening screw.

[0076] In a second aspect, the embodiments of the present application provide an airwave pressure therapy instrument, which comprises the air valve assembly 10 in any of the above embodiments. In this way, the airwave pressure therapy instrument can be conveniently inflated and deflated, the probability of air leakage of the airwave pressure therapy instrument can be reduced, the assembly of the airwave pressure therapy instrument can be facilitated, and the assembly efficiency of the airwave pressure therapy instrument can be improved.

[0077] The technical features of the above embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not exist contradictions, they shall be considered as the scope of the present application.

[0078] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it shall not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. A gas valve assembly, characterized by, The application relates to a gas guiding device, which comprises: a mounting base provided with a first through hole and a gas leakage passage communicated with the first through hole; a gas guiding structure connected to the mounting base, the gas guiding structure being provided with a buffer groove, an air outlet passage, an air inlet passage and a first gas guiding hole; the buffer groove is arranged on the side of the gas guiding structure close to the mounting base and is communicated with the air outlet passage; the first gas guiding hole is communicated with the buffer groove and the air inlet passage; a control member comprising a driving part and a movable part connected to each other, the driving part being arranged on the side of the mounting base away from the gas guiding structure; the driving part is configured to drive the movable part to move along the axial direction of the first through hole between a first position and a second position; when the movable part is in the first position, the movable part is in sealing cooperation with the first through hole to block the communication between the buffer groove and the gas leakage passage; when the movable part is in the second position, the movable part is in sealing cooperation with the first gas guiding hole to make the buffer groove communicated with the gas leakage passage through the first through hole and block the communication between the buffer groove and the air inlet passage.

2. The gas valve assembly of claim 1, wherein, the movable part is movably arranged in the first through hole, one end of the movable part away from the driving part is located in the buffer groove, and the one end of the movable part away from the driving part is provided with a first sealing pad; when the movable part is in the first position, the first sealing pad is in abutment with the one end of the first through hole close to the buffer groove to block the communication between the buffer groove and the gas leakage passage; when the movable part is in the second position, the first sealing pad is in abutment with the one end of the first gas guiding hole close to the first through hole to make the buffer groove communicated with the gas leakage passage through the first through hole and block the communication between the buffer groove and the air inlet passage.

3. The gas valve assembly of claim 2, wherein, a first protruding part is arranged in the buffer groove, the first protruding part is provided with a second through hole communicated with the first gas guiding hole, the central axis of the second through hole is coincident with the central axis of the first through hole; when the movable part is in the second position, the first sealing pad is in abutment with the first protruding part.

4. The gas valve assembly of claim 2, wherein, the side of the mounting base close to the gas guiding structure is provided with a first annular boss, the first annular boss is arranged around the first through hole and is communicated with the first through hole; when the movable part is in the first position, the first sealing pad is in abutment with the first annular boss.

5. The gas valve assembly of claim 4, wherein, the side of the mounting base close to the gas guiding structure is provided with a first annular groove, the first annular groove is arranged around the first annular boss; the side of the gas guiding structure close to the mounting base is provided with a second annular boss, the second annular boss is arranged around the buffer groove; the second annular boss is arranged in the first annular groove.

6. The gas valve assembly of claim 1, wherein, the side of the mounting base away from the gas guiding structure is provided with a third annular boss; the third annular boss is arranged around the first through hole; a gas leakage hole is arranged in the side wall of the third annular boss, and the gas leakage hole and the inner space of the third annular boss jointly define a gas leakage passage communicated with the first through hole; the driving part is connected to the third annular boss.

7. The gas valve assembly of any one of claims 1 to 6, wherein, a plurality of buffer grooves are arranged on the side of the gas guiding structure close to the mounting base. The first through holes are multiple, and the multiple first through holes are arranged on the mounting seat in a spaced manner and correspond to the multiple buffer grooves in a one-to-one manner; The first gas guide holes are multiple, and the multiple first gas guide holes are arranged in the gas guide structure in a spaced manner; each first gas guide hole communicates the air inlet channel and the corresponding buffer groove; The control members are multiple, and the multiple control members correspond to the multiple first through holes in a one-to-one manner; the driving part of each control member is configured to drive the movable part to move along the axis of the corresponding first through hole between the first position and the second position.

8. The gas valve assembly of claim 7, wherein, The air outlet channels are multiple, and the multiple air outlet channels correspond to the multiple buffer grooves in a one-to-one manner; The gas guide structure is provided with an air inlet interface and multiple air outlet interfaces; the air inlet interface communicates with the air inlet channel, and the multiple air outlet interfaces correspond to the multiple air outlet channels in a one-to-one manner.

9. The gas valve assembly of claim 8, wherein, The gas guide structure comprises: The gas guide plate comprises a first surface and a second surface arranged oppositely; the multiple buffer grooves are arranged on the first surface in a spaced manner; the second surface is provided with multiple gas flow channels in a spaced manner; the gas guide plate is provided with multiple second gas guide holes; each second gas guide hole communicates the corresponding gas flow channel and the buffer groove; the multiple first gas guide holes and the air inlet channel are arranged in the gas guide plate; The cover plate is sealingly fitted on the second surface of the gas guide plate; the multiple gas flow channels and the cover plate jointly define multiple air outlet channels; and the multiple air outlet interfaces are arranged on the cover plate.

10. An airwave pressure therapy apparatus, characterized by, The gas valve assembly comprises the gas valve assembly according to any one of claims 1 to 9.

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