TWM520849U - Airstream regulation valve - Google Patents

Description

Air flow control valve

The present invention relates to the technical field of air pressure regulation, and more particularly to a gas flow regulating valve applied to an air bed.

The bed is an indispensable living furniture in human life, and with the advancement of the times and the rapid development of industrial technology, various uses and various beds have also appeared in people's lives. A plurality of air cushions support and fill the air cushions with air to support the human body, thereby producing an air air bed different from the comfort of the conventional spring bed.

Further, in the conventional air-bed technology, the air pump directly injects air into a plurality of air cushion cylinders, and the air cushion cylinders are inflated to support the user's body weight, thereby achieving Unlike the general spring bed for lying comfort. However, in the actual use of the above air-cushion bed products, it has been found that for patients with inconvenient movement and general paralysis, it is unable to provide the desired back massage and soothing effect, even though the air-cushion bed has been provided higher. Lying comfort, but when the patient with inconvenient movement or general paralysis lies on it, he often suffers from hemorrhoids and ulceration caused by poor blood circulation in his back.

Among them, with the continuous improvement of air-bed technology, in order to improve the poor blood circulation, hemorrhoids and ulceration caused by the above-mentioned patients with inconvenient movement or full body lying on the air bed, there is a kind of neighboring on the market. Between the air cushion cylinders, alternating air cushioning functions can be performed to achieve a wave-like massage effect. Referring to Fig. 1, there is shown a schematic view of a conventional alternate air bed. As shown in Fig. 1, the conventional alternating air bed is mainly composed of an inflatable pump 2' and an air bed body 3'. The air bed body 3' has a plurality of odd air cushion cylinders 31' and a plurality of even air cushion cylinders 32', and the odd air cushion cylinders 31' are respectively connected to the even air cushion cylinders 32'. On a base gas duct 21' and an even number of air ducts 22'.

According to the above description, the base air duct 21' and the even air duct 22' are connected to the inflating pump 2', so that the inflating pump 2' can be respectively directed to the odd air cushion cylinders 31' and the even numbers The air-cushion cylinder 32' performs an inflating action, and causes the air-cushion bed body 3' to exhibit a wave-like undulation effect; in addition, since the undulating effect of the bed body is capable of generating a massage effect on the back of the user, Therefore, when the user is a patient with general paralysis or inconvenient movement, the alternating air bed can effectively improve the comfort of lying and improve the acne or ulceration of the patient due to prolonged bed rest.

With the continuous evolution of technology and technology, there is a new type of air bed on the market that is connected to three different areas of the bed through three air ducts. Please refer to FIG. 2, which is a schematic diagram of the use of a three-tube air bed. As shown in FIG. 2, the conventional three-tube air bed mainly includes: an inflatable pump 2'' and an air bed body 3'', wherein The air bed body 3'' has a plurality of odd air cushion cylinders 31" and a plurality of even air cushion cylinders 32" and a plurality of third regional air cushion cylinders 33", and the odd air cushion cylinders 31'' The even number of air cushion cylinders 32 ′′ and the third regional air cushion cylinders 33 ′′ are respectively connected to a base air duct 21 ′′, an even air duct 22 ′′ and a third area air duct 23 ′′ on.

According to the above description, the base air duct 21", the even air duct 22" and the third regional air duct 23" are connected to the inflatable pump 2", thereby making the inflatable pump 2'' The air cushion cylinders 31 ′′, the even air cushion cylinders 32 ′′, and the third air cushion cylinders 33 ′′ are respectively inflated, and the air cushion bed 3′′ is similarly wavy. The effect of the ups and downs. Wherein, the third region air-cushion cylinder 33'' is a voltage-regulating region, the purpose of which is to prevent a specific region from being affected by the wave alternately to protect the patient from being unsmooth, and at the same time reduce the odd-numbered air cushion cylinder 31'' and the even-numbered air cushion cylinder 32. ''The gas volume occupied by the two sets of air-cushion cylinders, in order to achieve a more undulating effect.

According to the above-mentioned technical description, we can know that the main technical difference between the general alternating air bed and the three-tube air bed is the output quantity of the air pump. Obviously, the general alternating air bed only uses the air with double output. The pump can be used, but in the three-tube air bed, it must be operated with an inflatable pump with three outputs. However, when the user only has a dual-output inflatable pump, it is inevitably unable to replace and make the three-tube air bed operate normally. Thus, not only does the three-tube air bed not be compatible with the technical problems of the general air bed, its use In the case of a three-tube air bed, the condition of the three-output air pump must be purchased at the same time, which further leads to a significant increase in the cost of use, which in turn affects the popularity of the use and the marketability of the product.

Therefore, through the above description, we can know how to improve the technical barrier between the existing general air bed and the three-tube air bed, and make the general double output air pump suitable for the three-tube air bed. The main focus of today's three-tube air bed technology; in view of this, the creator of this case is trying to research and create, and finally developed a damper valve of this creation, and by installing this creation on the air pressure pump After the air duct of the air bed body, the effect of the general double output air pump on the three-tube air bed technology can be effectively realized.

The purpose of the present invention is to provide an air flow regulating valve, which is mainly applied to the technical field of air pressure supply of an air bed, wherein the air flow regulating valve mainly has a regulating valve main body, and through which the double output air pressure pump is converted into three. The output is applied to the three-tube air bed, so that the air pump with dual gas source output is also suitable for the three-tube air bed technology, which indirectly reduces the use cost of the three-tube air bed and improves the existing air cushion. Bed compatibility.

Therefore, in order to achieve the above object of the present invention, the creator of the present invention proposes an air flow regulating valve, which mainly has a regulating valve main body, and the main system of the regulating valve comprises: at least one first cavity, which is arranged and connected with a first An input tube and a first output tube, and the first cavity system is formed with a first communication hole; a second cavity is disposed and connected to a second input tube and a second output tube, and the first The two-cavity system is formed with at least one second communication hole; and at least one gas distribution cavity is connected to the first communication hole and the second communication hole; wherein the first communication hole is provided with a first a check valve, such that gas can only flow from the first cavity into the gas splitting cavity, and the second input pipe is provided with a second check valve, so that gas can only flow from the second input pipe to the first a gas chamber from which the gas input from the first input pipe can flow to the first output pipe for gas output, and a gas system input from the second input pipe can pass through the gas system Circulating in the second cavity The second output tube performs gas output; wherein the gas system input from the first input tube can pass through the first cavity, the first communication hole, the gas distribution cavity, the second communication hole, and the second cavity The flow is branched to the second output pipe, and the first output pipe and the second output pipe are simultaneously subjected to gas output.

In order to more clearly describe a flow regulating valve proposed by the present invention, a preferred embodiment of the present invention will be described in detail below with reference to the drawings.

Please refer to FIG. 3a, FIG. 3b, FIG. 4a, FIG. 4b and FIG. 5, which are respectively different perspective perspective views, different angle exploded views and usage diagrams of the first embodiment of the air flow regulating valve of the present invention; FIG. 3a, FIG. 3b, As shown in FIG. 4a, FIG. 4b and FIG. 5, the first embodiment of the damper valve 1 of the present invention is mainly composed of a regulating valve body 11 and an upper cover body 12, wherein the upper cover body 12 is provided with a cover body 12 a second locking member 121, and the adjusting valve body 11 is provided with a first locking member 116, and the upper cover body 12 is tightly covered by the second locking member 121 and the first locking member 116. The regulator valve body 11 is on the valve.

Further, the regulating valve body 11 includes: two first cavity bodies 11a, a second cavity body 11b and two gas distributing cavity bodies 11c, wherein each of the first cavity bodies 11a is disposed and connected with a first one. The input tube 112 and a first output tube 111, and the first cavity 11a is formed with a first communication hole 11a1, and the second cavity 11b is disposed and connected to a second input pipe 114 and a second output The tube 113 and the second cavity 11b are formed with at least one second communication hole 11b1, and each of the gas distribution chambers 11c communicates with the first communication hole 11a1 and the second communication hole 11b1. In more detail, the first communication hole 11a1 is provided with a first check valve 11a2 so that gas can flow only from the first cavity 11a into the gas distribution cavity 11c, and the second input pipe 114 is provided. There is a second check valve 1141 so that gas can only flow from the second input pipe 114 into the second cavity 11b.

It should be particularly noted that, in the prior art, in a general state, the gas system input from the first input pipe 112 can flow to the first output pipe 111 via the first cavity 11a for gas output, and The gas system input from the two input tubes 114 can flow to the second output tube 113 via the second chamber 11b for gas output; in addition, in another state, when the second input tube 114 is connected to the gas supply device, The gas system input from the first input pipe 112 can be branched to the second output pipe 113 via the first cavity 11a, the first communication hole 11a1, the gas distribution cavity 11c, the second communication hole 11b1, and the second cavity 11b. And allowing the first output pipe 111 and the second output pipe 113 to simultaneously perform gas output.

Thus, with the above technical design, the damper of the present invention can convert the dual gas source output into the three gas source output, so that the gas pump output of the dual gas source can be applied to the three tube air bed. Specifically, as shown in FIG. 5, the dual output pneumatic pump 2 can be connected to the air flow regulating valve 1 by its two output pipes 21, 22, and then the two outputs can be transmitted through the function of the air flow regulating valve 1. The air of the tubes 21, 22 is regulated and converted into three outputs, and the gas is output to the different gas cylinder regions 31, 32, 33 of the air bed 3 through the three gas connecting tubes 311, 321, 331 respectively; thus, the general inflatable gang can be realized. The Pu is compatible with the technical structure of the three-tube air bed, which effectively reduces the cost of using the three-tube air bed.

In addition, please refer to FIG. 3a, FIG. 3b, FIG. 4a, FIG. 4b and FIG. 5. As shown in the figure, in the embodiment, the two first cavities 11a are respectively disposed on the second cavity 11b. Correspondingly, the first input tube 112 and the first output tube 111 connected to the two first cavities 11a are also disposed on opposite sides of the second input tube 114 and the second output tube 113, respectively. And, the two gas splitting chambers 11c are correspondingly formed at the bottom of the regulating valve body 11.

The two gas splitting chambers 11c are provided with a splitting chamber cover 115, and the splitting chamber cover 115 is formed corresponding to the two gas distributing chambers 11c to form two splitting chamber cover grooves. 1151, when the shunt chamber cover 115 is disposed on the two gas shunting chambers 11c, the two shunt chamber cover recesses 1151 are tightly respectively sealed on the two gas shunting chambers 11c. And the two gas splitting chambers 11c are not connected to each other. Moreover, the bottom of the regulating valve body 11 is formed with two indicator marks 117, and the two indicator marks 117 correspond to the second input tube 114 and the second output tube 113, respectively. The end portions of the first input tube 112, the first output tube 111, the second input tube 114, and the second output tube 113 are each formed with a tube connecting convex portion 118, thereby increasing the output and input through the tube connecting the convex portion. The connection between the tube and the external air tube is stable.

Thus, through the above, the constituent elements and technical features of the first embodiment of the air flow regulating valve of the present invention have been clearly and completely described, and it is known that the use of the first embodiment described above is not only applicable. The connection between the three-output inflatable pump and the three-tube air bed can make the dual-output inflatable pump compatible and applicable to the three-tube air bed technology.

On the other hand, in order to make the three-tube air bed also have an emergency deflation function, it is convenient for the medical staff to perform medical first aid such as Cardiopulmonary Resuscitation (CPR) for the patient lying on the air bed. Further, the original airflow regulating valve 1 is further modified to complete the second embodiment of the airflow regulating valve of the present invention, and the airflow regulating valve of the second embodiment of the present invention has the function of emergency air release; A second embodiment of a flow regulating valve of the present invention will be described in detail in conjunction with the drawings.

Please refer to FIG. 6a, FIG. 6b, FIG. 7, FIG. 8 and FIG. 9a and FIG. 9b, which are different perspective perspective views, exploded views, and an exploded view of the emergency venting valve cover of the second embodiment of the damper valve. And a schematic diagram of the use of the second embodiment of the air flow regulating valve. As shown in FIG. 6a, FIG. 6b, FIG. 7, FIG. 8 and FIG. 9a and FIG. 9b, in the second embodiment, the difference from the first embodiment is that the second embodiment does not have a cover. However, it should be particularly noted that the second embodiment still has the regulating valve body 11 of the first embodiment, and its function and structure are the same, and therefore, the regulating valve will not be repeatedly described herein. Related structural features of the body 11.

The structure of the first embodiment is different from that of the first embodiment. In the second embodiment of the present invention, the air flow regulating valve 1 ′ further includes an emergency vent valve cover 13 to replace the original upper cover body, and the emergency vent valve cover 13 The cover is disposed on the regulating valve body 11 and is composed of a bonnet main body 132 and a switch knob 131. In more detail, the bonnet main body 132 is disposed on the regulating valve body 11 , and the bonnet main body 132 is provided with a plurality of first venting openings 1326 , wherein the first venting openings 1326 are respectively Corresponding to and connected to the first cavity 11a and the second cavity 11b; further, the switch knob 131 is disposed and rotatable on the bonnet body 132, wherein the switch knob 131 is configured to correspond to the A plurality of second vent holes 1311 of the first venting opening 1326.

In the second embodiment of the present invention, when the emergency vent flap 13 is in the closed state, the second vent holes 1311 of the switch knob 131 do not correspond to the first deflation Opening the opening 1326; and rotating the switch knob 131 to turn the emergency vent flap 13 into an open state. At this time, the second vent holes 1311 of the switch knob 131 respectively correspond to the first deflation openings The hole 1326 further allows the internal gas of the first cavity 11a and the second cavity 11b to be discharged from the damper valve 1 by the first venting opening 1326 and the second venting holes 1311.

Thus, by the design of the emergency vent valve cover 13, when the patient lying on the air bed needs to perform emergency first aid, the switching of the switch knob 131 can discharge the internal gas of the air bed emergencyly and quickly, making the disease Suffering from lying on a hard bed to avoid the inconvenience and impact of the soft air bed when the medical staff is in emergency emergency.

Further, the bonnet main body 132 includes a plurality of O-rings 1324 and a marking ring cover 1322, wherein the O-rings 1324 are respectively disposed on the first venting openings 1326, and the marking The ring cover 1322 is disposed on the bonnet main body 132 and surrounds the switch knob 131, and the indicator ring cover 1322 is formed with a closed state indicating area 13221 and an open state indicating area 1322. Further, in the present creation, The close state flag area 13221 and the open state flag area 13222 can be distinguished by any one, any combination or any combination of the following: color, text, and symbolic representation.

As shown in FIG. 9a and FIG. 9b, the switch knob 131 has a knob grip 1312, and when the emergency vent flap 13 is in the closed state, the knob grip 1312 corresponds to the closed state indicating area 13221, and When the emergency vent flap 13 is in the open state, the knob grip 1312 corresponds to the open state indicating area 1322; thus, the user can be clearly defined by the relative angle between the knob grip 1312 and the bonnet body 132. It is judged that the air flow regulating valve 1' is in an open or closed state.

Further, the indicator ring cover 1322 is further formed with a plurality of snap-fit members 13223, and the indicator ring cover 1322 is transmitted through the plurality of snap-fit holes 1325 of the snap-fit member 13223 and the bonnet body 132. The snap-fit members 13223 are fastened to the snap-fit holes 1325 by a plurality of fastening pins 1321, respectively. In addition, the bonnet body 132 is formed with two second indicator marks 1329, and the two second indicator marks 1329 correspond to the second input tube 114 and the second output tube 113, respectively.

Please refer to FIG. 6a, FIG. 6b, FIG. 7, FIG. 8 and FIG. 9a and FIG. 9b. As shown, the switch knob 131 is formed with a first wave-shaped joint 1313 and a joint shaft 1314. The first wave-shaped joint portion 1313 is formed around the switch knob 131, and the valve cover body 132 is formed with a second wave-shaped joint portion 1328 corresponding to the first wave-shaped joint portion 1313, and when the switch is When the knob 131 is coupled to the bonnet main body 132, the first wave-shaped joint portion 1313 and the second wave-shaped joint portion 1328 are coupled to each other.

According to the above combined design, the effect of the limit movement between the switch knob 131 of the present creation and the bonnet main body 132 is generated, so that when the user operates the created emergency vent flap 13 for state switching, The first air venting opening 1326 and the second air venting holes 1311 are accurately matched with each other to ensure an emergency deflation effect; relatively, the air can be prevented from being opened from the first venting due to insufficient rotation angle of the switch knob 131. The case where the hole 1326 and the second blow hole 1311 leak.

In addition, the switch knob 131 is disposed through the coupling shaft 1314 and is rotatable on the bonnet main body 132. The bonnet main body 132 is formed with a locking hole 1327, and the locking hole 1327 corresponds to the The first locking member 116 of the valve body 11 is adjusted, wherein the coupling shaft 1314 of the switch knob 131 is coupled to the first locking member 116 through the locking hole 1327, so that the switch knob 131 is disposed on the bonnet body. 132.

Thus, through the above, the components and technical features of the damper valve of the present invention have been clearly and completely described, and the above-mentioned one can understand that the creation has the following advantages:

1. Through the design of this creation, it can be used not only between the three-output inflatable pump and the three-tube air bed, but also to convert the dual gas source output into three gas source output, thereby making the dual gas source output inflated. The pump is also suitable for three-tube air bed; in addition, this creation can of course also be applied to the inflation technology of the general air bed.

2. In addition, with the design of the emergency venting valve cover, in an emergency, the user only needs to perform emergency deflation by switching the emergency venting valve cover, thereby replacing the conventionally necessary to remove the air connecting pipe connected to the pneumatic pump. The inconvenience and trouble caused by the deflation.

It is to be understood that the foregoing detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention. Both should be included in the scope of the patent in this case.

<this creation>
1‧‧‧Airflow control valve
1'‧‧‧Airflow control valve
11‧‧‧Regulator body
12‧‧‧Upper cover
13‧‧‧Emergency vent cap
111‧‧‧First output tube
112‧‧‧First input tube
113‧‧‧Second output tube
114‧‧‧Second input tube
115‧‧‧Diversion chamber cover
116‧‧‧First lock firmware
117‧‧‧Indication mark
118‧‧‧Body connection convex
11a‧‧‧First cavity
11b‧‧‧Second cavity
11c‧‧‧ gas shunt chamber
11a2‧‧‧First check valve
11a1‧‧‧ first connecting hole
11b1‧‧‧second connecting hole
1141‧‧‧Second check valve
1151‧‧‧Diversion chamber cover groove
121‧‧‧Second lock firmware
2‧‧‧Inflatable pump
21‧‧‧Output tube
22‧‧‧Output tube
3‧‧‧ air bed
31‧‧‧Air pump area
32‧‧‧Air pump area
33‧‧‧Air pump area
311‧‧‧ gas connection tube
321‧‧‧ gas connection tube
331‧‧‧ gas connection tube
131‧‧‧Switch knob
132‧‧‧ bonnet body
1311‧‧‧Second vent
1312‧‧‧ knob grip
1313‧‧‧First wave type joint
1314‧‧‧ Combined shaft
1321‧‧‧ fastening pin
1322‧‧‧Marking ring cover
1324‧‧‧O-ring
1325‧‧‧Snap joint hole
1326‧‧‧First venting opening
1327‧‧‧Lock hole
1328‧‧‧Second wave type joint
1329‧‧‧Second indicator
13221‧‧‧Closed status marking area
13222‧‧‧Open status marking area
13223‧‧‧Snap joints <知知>
2'‧‧‧Inflatable pump
21'‧‧‧Base gas duct
22'‧‧‧ even air duct
3'‧‧‧ air bed body
31'‧‧‧ odd air cushion cylinder
32'‧‧‧ even air cushion
2''‧‧‧Inflatable pump
21''‧‧‧Based Air Catheter
22''‧‧‧ Even air duct
23''‧‧‧ Third Regional Air Catheter
3''‧‧‧ air bed body
31''‧‧‧ odd air cushion cylinder
32''‧‧‧ even air cushion
33''‧‧‧3rd area air cushion cylinder

1 is a schematic view showing the use of a conventional alternate air bed; FIG. 2 is a schematic view showing the use of a conventional three-tube air bed; FIG. 3a to FIG. 3b are different angle perspective views of the first embodiment of the air flow regulating valve of the present invention; FIG. 4a to FIG. Fig. 5 is a schematic view showing the use of the first embodiment of the air flow regulating valve; Fig. 5 is a perspective view showing the second embodiment of the air flow regulating valve according to the present invention; Fig. 6a to Fig. 6b are different perspective views of the second embodiment of the air flow regulating valve; Fig. 8 is an exploded view of the emergency vent valve cover of the present invention; and Figs. 9a to 9b are schematic views showing the use of the second embodiment of the damper valve.

1'‧‧‧Airflow control valve

11‧‧‧Regulator body

13‧‧‧Emergency vent cap

111‧‧‧First output tube

112‧‧‧First input tube

113‧‧‧Second output tube

114‧‧‧Second input tube

131‧‧‧Switch knob

132‧‧‧ bonnet body

Claims (14)

An air flow regulating valve mainly has a regulating valve main body, and the regulating valve main system comprises: at least one first cavity, which is disposed and connected to a first input pipe and a first output pipe, and the first cavity The system is formed with a first communication hole; a second cavity is disposed and connected to a second input pipe and a second output pipe, and the second cavity system is formed with at least one second communication hole; and at least one The gas distribution chamber is connected to the first communication hole and the second communication hole; wherein the first communication hole is provided with a first check valve, so that gas can only flow from the first cavity The gas is divided into a cavity, and the second input pipe is provided with a second check valve, so that gas can only flow from the second input pipe into the second cavity; wherein the gas input from the first input pipe The first output tube can be circulated to the first output tube for gas output, and the gas system input from the second input tube can flow to the second output tube for gas output via the second chamber Where the self-input tube The gas inlet system may be branched to the second output pipe via the first cavity, the first communication hole, the gas distribution cavity, the second communication hole and the second cavity, and the first output pipe and the first output pipe The second output tube is capable of simultaneously performing gas output. The damper valve of claim 1, further comprising an upper cover body, wherein the upper cover system is provided with a second lock, and the control valve main system is provided with a first lock, wherein the upper cover system The adjusting valve body is tightly disposed through the combination of the second locking member and the first locking member. The damper valve of claim 1, wherein the number of the first cavities is two, and the two first cavity systems are respectively disposed on two sides of the second cavity, correspondingly The first input tube and the first output tube connected to the two first cavities are also disposed on opposite sides of the second input tube and the second output tube, respectively. The damper valve of claim 3, wherein the number of the gas splitting chambers is two with respect to the two first chambers, and the two gas splitting chamber systems are correspondingly Formed at the bottom of the regulator valve body. The damper valve of claim 4, wherein the two gas split chamber system covers are provided with a split chamber cover, and the split chamber cover is formed corresponding to the two gas split chambers. There are two split chamber cover recesses, and when the split chamber cover is disposed on the two gas split chambers, the two split chamber cover recesses closely cover the two gases respectively The manifold is shunted and the two gas splitting chambers are not connected to each other. The damper valve of claim 1, wherein the bottom of the regulating valve body is formed with two indicator marks, and the two indicator marks respectively correspond to the second input tube and the second output tube. The air flow regulating valve according to claim 1, wherein the end portions of the first input pipe, the first output pipe, the second input pipe and the second output pipe are each formed with a pipe connecting convex portion. The damper valve of claim 1, further comprising an emergency venting valve cover, wherein the emergency venting valve cover is disposed on the regulating valve body and comprises: a bonnet body, the cover is disposed thereon a plurality of first venting openings are defined in the main body of the bonnet, wherein the first venting openings respectively correspond to and communicate with the first cavity and the second cavity; a switch knob is disposed and rotatable on the bonnet body, wherein the switch knob is provided with a plurality of second vent holes corresponding to the first vent openings; wherein, when the emergency vent cover is located When the state is off, the second venting holes of the switch knob do not correspond to the first venting openings; and by rotating the switch knob, the emergency venting valve cover is turned to an open state. The second venting holes of the switch knob respectively correspond to the first venting openings, so that the internal gases of the first cavity and the second cavity are enabled by the first venting openings and the second Venting hole and exhaust air flow regulating valve . The damper valve of claim 8, wherein the bonnet main system comprises: a plurality of O-rings respectively disposed on the first venting openings; And surrounding the switch knob, wherein the indicator ring cover is formed with a closed state indicating area and an open state indicating area; wherein the switch knob has a knob grip and the emergency drain valve When the cover is in the closed state, the knob grip corresponds to the closed state indicating area, and when the emergency vent flap is in the open state, the knob grip corresponds to the open state indicating area. The damper valve of claim 9, wherein the closed state indicating area and the open state indicating area are distinguishable by any one of the following two, any combination or any combination of three: color, text, and Symbolic illustration. The damper valve of claim 9, wherein the indicator ring cover is further formed with a plurality of snap fasteners, and the indicator ring cover is permeable to the plurality of snap joints and the bonnet body The snap fastening holes are coupled to each other, and the snap fasteners are respectively fastened to the snap fastening holes by a plurality of fastening pins. The damper valve of claim 8, wherein the bonnet main system is formed with two second indicator marks, and the two second indicator marks respectively correspond to the second input tube and the first Two output tubes. The damper valve of claim 8, wherein the switch knob is formed by: a first wave-shaped joint formed around the switch knob; and a combined shaft, the switch knob is transmitted through The bonnet main system is configured to be coupled to the bonnet main body; wherein the bonnet main system is formed with a second wave-shaped joint portion corresponding to the first wave-shaped joint portion, and when the switch knob is coupled to the valve When the cover body is attached, the first wave-shaped joint portion is coupled to the second wave-shaped joint portion in correspondence with each other. The damper valve of claim 13, wherein the bonnet main system is formed with a locking hole, and the locking hole corresponds to a first locking member of the regulating valve body, wherein the switch knob The coupling shaft is coupled to the first lock through the locking hole, so that the switch knob is disposed on the bonnet body.