TW201800688A - Dual-purpose valve connector characterized by using two valve connection ends to respectively connect different valves, thereby preventing user from operation errors and having the advantages of simple structure and lower cost - Google Patents

Abstract

The present invention relates to a dual-purpose valve connector mainly comprising a first valve connection end, a second valve connection end, an air inlet, a switching valve chamber, a sealing slidable block, and a fixing pin. The switching valve chamber is in communication with the first air-inflating channel of the first valve connection end, the second air-inflating channel of the second valve connection end and the air inlet. The sealing slidable block is received in the switching valve chamber. The fixing pin is mounted in the first air-inflating channel, wherein the first end thereof protrudes into the switching valve chamber. When the first valve connection end is coupled with the first valve, the on/off valve of the first valve abuts against the second end of the fixing pin so as to open the on/off valve and the air flow coming from the first valve pushes the sealing slidable block to seal the second air-inflating channel. When the second valve connection end is coupled with the second valve, the air flow coming from the second valve pushes the sealing slidable block to seal the first air-inflating channel.

Description

Dual-use gas nozzle connector

The invention relates to a dual-purpose nozzle joint, in particular to a nozzle joint applicable to inflating vehicle tires of two types of nozzle.

Taking the bicycle industry as an example, there are a variety of valve specifications for different tire types. Commonly, they include French valve (Presta valve), American valve (Schrader valve), and British valve (Dunlop valve). However, users are often troubled by the multiple nozzle configurations, as the joints must be replaced for different nozzle configurations.

Although some manufacturers have developed a single connector that can be commonly used for American and French gas nozzles, such as the Republic of China Patent Bulletin No. 1498479 "American and French dual-use gas nozzle connector structure", but in terms of user experience, , There are still inconveniences in its use.

To further clarify, the main feature of the above patent is that the American and French gas nozzles share the same connection port, and the operations when connecting the American and French gas nozzles are different and quite complicated, which may easily cause user confusion. To further explain, when you want to connect the American-style gas valve, the control group must first push in the direction of the American-style gas valve so that the stopper bites the brake lever; then, connect the American-style gas valve so that the external thread of the American-style gas valve is screwed to the joint The American teeth of the body, during the screwing process, the brake lever will open the American valve, so that it can be inflated.

On the other hand, when you want to connect the French gas nozzle, the control group must first push in the opposite direction, and then insert the French gas nozzle, and then the control group pushes in the French gas nozzle's insertion direction, so that the stopper bites and bites the French gas. The mouth of the French screw teeth, and finally the French valve is opened by the inflation pressure, so that the French gas nozzle can be inflated.

In conclusion, because American and French gas nozzles share the same connection port, and the operation methods of the two are very different, it is easy to cause confusion for users. If the operation is wrong, it will not be able to inflate smoothly. In severe cases, it may even cause gas. Damage to mouth or joint.

In addition, when the nozzle joint disclosed in the above patent is connected to a French valve, the French valve must be opened by the inflation pressure; in other words, it is possible only when the pressure of the inflation source is greater than the pressure in the tire. Open the French valve; in this case, it can only be inflated in one direction. When the air pressure in the tire is too high, the valve joint cannot be adjusted immediately, which is quite inconvenient!

The main purpose of the present invention is to provide a dual-purpose nozzle joint, which can provide two different specifications of nozzle joints and inflate them, which is convenient to operate and difficult to mix, which is quite convenient for users.

To achieve the above object, a dual-purpose nozzle joint of the present invention mainly includes a first nozzle connection end, a second nozzle connection end, an air inlet, a switching valve chamber, a sealed slider, and a fixing device. The connection end of the first air nozzle includes a first inflation channel, the connection end of the second air nozzle includes a second inflation channel, and the air inlet is used to connect to a pressure source, and the switching valve chamber is connected to the first An inflatable channel, a second inflatable channel, And an air inlet, and the switching valve chamber includes a first end face and a second end face, the first end face is provided with a first opening, the second end face is provided with a second opening, and the first opening communicates with the first inflation channel. The two openings communicate with the second inflation channel, and the sealed slider is housed in the switching valve chamber and can slide freely. In addition, the fixing pin includes a through hole, a first end, and a second end, and the through hole penetrates the first end and the second end, and the fixing pin is disposed in the first inflation channel, and the first end extends into The switching valve chamber has an end surface of the first end constituting a first end surface. Wherein, when the first nozzle connection end is coupled to a first nozzle, the opening and closing valve of the first nozzle is pushed against the second end of the fixed pin to open the opening and closing valve, and the airflow from the first nozzle is pushed and sealed. The slider seals the second inflation channel, and the inflation air from the air pressure source passes through the air inlet, the switching valve chamber, and the first inflation channel to inflate the first air nozzle; wherein, when the second air nozzle connection end is coupled, When a second air nozzle is used, the airflow from the second air nozzle pushes the sealing slider to seal the first inflation channel, and the airflow from the air pressure source passes through the air inlet, the switching valve chamber, and the second inflation channel. The second nozzle is inflated.

According to this, the present invention is provided with two gas nozzle connection ends, and different types of gas nozzles each have independent gas nozzle connection ends, which is not easy for users to confuse, and the probability of operation errors will be greatly reduced. Furthermore, the dual-purpose gas nozzle connector of the present invention can automatically switch the flow path of the inflation air flow by the connected gas nozzle, that is, directly push the sealed slider to determine the flow path of the inflation air flow by the internal air pressure of the connected gas nozzle. , There is no other switching mechanism or means that requires the user to manually, the mechanism is simple, not easy to fail, and the cost is low.

Furthermore, the through hole of the fixing pin of the present invention can be used to form the flow path of the inflation air flow, and the first end thereof can form a switching valve chamber. One of the wall surfaces, and the second end thereof can be directly used to open the on-off valve of the first gas nozzle, that is, the second end can be pressed against the on-off valve of the first gas nozzle to open the valve. In addition, more importantly, the setting of the fixed pin can simplify the whole mechanism design, make assembly more convenient, and the cost is lower.

Preferably, when the connecting end of the first gas nozzle is coupled to the first gas nozzle and the pressure in the first gas nozzle is about one atmosphere, more than half of the airflow from the air inlet will first flow out through the second inflation channel. The sealing slider will move and seal the second inflation channel; after inflating the first nozzle, the air pressure from the first nozzle will continuously drive the sealing slider to seal the second inflation channel. When the second air nozzle connection end is coupled to the second air nozzle, and the pressure in the second air nozzle is about one atmosphere, more than half of the airflow from the air inlet will first flow out through the first inflation channel to seal the slider The first inflation channel will be moved and sealed; after inflating the second nozzle, the air pressure from the second nozzle will continue to make the sealing slider seal the first inflation channel.

In other words, when there is no gas in the tire with the first air nozzle, the inflation airflow can first inflate the tire to about one atmosphere, and then because the inflation airflow flows to a lower pressure, most of the inflation airflow will pass through first. The second inflation channel flows out. At this time, the inflation flow will drive the seal block to seal the second inflation channel. Then, the inflation flow inflates the first nozzle, and then the high-pressure air pressure from the first nozzle will continuously drive the seal. The stopper block seals the second inflation channel, so that the first air nozzle can be inflated smoothly. On the other hand, when a tire with a second air nozzle is to be inflated and the tire is also in an airless state, it operates on the same principle.

Moreover, the switching valve chamber of the dual-purpose gas nozzle joint of the present invention may be a barrel-shaped chamber; the other sealed slider is a cylindrical slider, which includes a The first airtight surface and a second airtight surface, and the diameters of the first airtight surface and the second airtight surface are larger than the diameters of the first opening and the second opening, respectively. According to this, the present invention can slide the cylindrical sealing block into the barrel-shaped switching valve chamber, and use the first airtight surface and the second airtight surface of the sealing block to seal the barrel cavity. The first and second openings on the first end face and the second end face of the chamber are used to achieve the purpose of switching the gas flow.

Furthermore, the dual-purpose gas nozzle connector of the present invention may further include a body, and the first inflation channel is arranged in the body, and the fixing pin is screwed to be fixed to the body. In addition, the dual-purpose gas nozzle connector of the present invention may further include an O-ring, which may be disposed between the fixing pin and the body. In other words, the fixing pin of the present invention can be screw-locked and fixed to the body. The assembly process is quite simple, and an O-ring can be used to achieve the airtightness between the fixing pin and the body.

In addition, the cross-sectional area of the switching valve chamber of the dual-purpose gas nozzle joint of the present invention is larger than the cross-sectional area of the sealing slider; and the side wall surface of the switching valve chamber is provided with at least one vent hole which is connected to the air inlet. Accordingly, by designing the cross-sectional area of the switching valve chamber to be larger than the cross-sectional area of the sealing slider, the sealing slider can be easily slid into the switching valve chamber, and the inflation air can easily pass through the switching valve chamber. The vent holes in the side wall flow into the switching valve chamber.

In addition, the dual-purpose gas nozzle connector of the present invention may further include a pressure source connector; the second inflation channel and the switching valve chamber are arranged in the body, and the pressure source connector is arranged in the body; the pressure source connector includes An air passage, a pressure relief valve, and an air inlet, and one end of the air passage communicates with the air inlet, and the other end of the air passage communicates with at least one ventilation of the switching valve chamber Orifice; pressure relief valve system optionally connects the airway to the atmosphere. According to this, the present invention can adjust the air pressure in the first and second gas nozzles through the pressure relief valve.

In addition, the dual-purpose gas nozzle joint of the present invention may further include two seal rings, and a vent ring groove and two seal ring grooves may be provided on the outer periphery of the body, and the vent ring grooves are arranged between the two seal ring grooves. The ventilation ring groove is connected to the air passage and at least one ventilation hole; wherein the two seal rings are respectively arranged in the two seal ring grooves, so that the outer peripheral surface of the body and the inner peripheral surface of the air pressure source connecting member constitute air. dense. In other words, the air flow from the air pressure source will flow through the air passage of the air pressure source connector and the air ring groove of the body, and enter the switching valve chamber through at least one air hole on the body; and the two seal rings and the two seal ring grooves It is used to prevent gas from leaking from the vent ring groove through the outer peripheral surface of the body and the inner peripheral surface of the pressure source connection piece.

Furthermore, the dual-purpose gas nozzle connector of the present invention may further include a rear airtight ring and a cap, and the body includes a front end and a rear end, and the rear end includes a convex portion, and the cap set is arranged at the rear end. Then, the air-tight ring is sleeved on the convex portion and interposed between the cap and the rear end. In addition, the second inflation channel may be disposed at the rear end of the body, and the convex portion is provided with at least one radial through hole, which is connected to the second inflation channel; wherein, when the second gas nozzle is connected to the second gas nozzle connection end, The front end edge of the second air nozzle abuts the rear air-tight ring, the convex part abuts the opening and closing valve of the second air nozzle, and the inflation air flow from the air pressure source passes through the air inlet, the air passage, at least one air hole, the switching valve chamber, The second inflation channel and at least one radial through hole inflates the second air nozzle.

To achieve the above object, a dual-purpose gas nozzle connector of the present invention mainly includes a body, an air pressure source connecting member, a sealed slider, and a fixing pin; the body includes a first inflation channel, a second inflation channel, and a switching valve chamber, and The switching valve chamber is interposed between the first inflation channel and the second inflation channel and communicates with each other; the air pressure source connection is arranged on the body, the air pressure source connection includes an air passage and an air inlet, and the air passage is connected to Switching valve chamber and air inlet, the air inlet is used to connect to the air pressure source; the sealed slider is housed in the switching valve chamber and can slide freely; the fixing pin includes a through hole, the first end, and the second end The through hole is penetrated through the first end and the second end, the fixing pin is arranged in the first inflation channel, the first end extends into the switching valve chamber, and the second end is used to push against the opening and closing valve of a gas nozzle.

In order to achieve the above object, a dual-purpose gas nozzle connector of the present invention mainly includes a body, a pressure source connecting member, a sealed slider, and a fixing pin; the body includes a first inflation channel, a second inflation channel, and a switching valve chamber; and The switching valve chamber is a barrel-shaped chamber, which includes a first end surface and a second end surface. The first end surface is provided with a first opening, the second end surface is provided with a second opening, and the first opening communicates with the first inflation channel. The second opening communicates with the second inflation channel; the air pressure source connection is arranged on the body, and the air pressure source connection includes an air inlet, and the air inlet is used to connect to a pressure source and communicate with the body's switching valve Chamber; the sealed slider is housed in the switching valve chamber; the fixed pin includes a through hole, a first end, and a second end, the through hole penetrates the first end and the second end, and the fixed pin is provided in the first inflation channel Inside, the first end extends into the switching valve chamber, and the end surface of the first end constitutes the first end surface; wherein, when the first inflation channel is coupled to the first air nozzle, the airflow from the first air nozzle pushes the sealing slider to seal Second opening When the second inflation channel is coupled to the second gas nozzle, the airflow from the second gas nozzle pushes the sealing slider to seal the first opening on the first end surface.

11‧‧‧ Ontology

110‧‧‧Radial through hole

111‧‧‧Front

112‧‧‧ backend

113‧‧‧ convex

114‧‧‧ rear airtight ring

115‧‧‧ Cap

116‧‧‧Ventilation ring groove

117‧‧‧Sealing ring groove

12‧‧‧Pneumatic source connection

121‧‧‧airway

122‧‧‧ Pressure Relief Valve

13‧‧‧ sets of connectors

131‧‧‧Radial through groove

14‧‧‧ sleeve

140‧‧‧step difference

15‧‧‧ Clamp

151‧‧‧occlusal teeth

16‧‧‧ Reset element

2‧‧‧ the first gas nozzle connection end

21‧‧‧ the first inflatable channel

3‧‧‧Second air nozzle connection end

31‧‧‧Second inflatable channel

4‧‧‧air inlet

5‧‧‧Switch valve chamber

51‧‧‧first end face

511‧‧‧first opening

52‧‧‧Second end face

521‧‧‧Second Opening

53‧‧‧ Vent

6‧‧‧closed slider

61‧‧‧First airtight surface

62‧‧‧Second Airtight Surface

7‧‧‧ fixed pin

71‧‧‧through hole

72‧‧‧ the first end

73‧‧‧ second end

731‧‧‧cross slot

74‧‧‧O-ring

81,82‧‧‧Seal ring

83‧‧‧Front seal ring

84‧‧‧ rear seal ring

85‧‧‧ front airtight ring

P‧‧‧The first gas nozzle

P1‧‧‧Open and close valve

S‧‧‧Second gas nozzle

S1‧‧‧Open and close valve

FIG. 1 is an exploded view of a preferred embodiment of the present invention.

Fig. 2 is a sectional view of a preferred embodiment of the present invention.

FIG. 3 is a sectional exploded view of a preferred embodiment of the present invention.

FIG. 4 is a cross-sectional view of a preferred embodiment of the present invention when an American-style gas nozzle is connected.

FIG. 5 is a cross-sectional view when a French gas nozzle is connected according to a preferred embodiment of the present invention.

Before the dual-purpose gas nozzle connector of the present invention is described in detail in this embodiment, it should be particularly noted that in the following description, similar elements will be represented by the same element symbols. Furthermore, the drawings of the present invention are only for illustration, they are not necessarily drawn to scale, and not all details are necessarily presented in the drawings.

Please refer to FIG. 1, FIG. 2, and FIG. 3 together. FIG. 1 is an exploded view of a preferred embodiment of the dual-purpose nozzle connector of the present invention, and FIG. 2 is a preferred embodiment of the dual-purpose nozzle connector of the present invention. Sectional view, FIG. 3 is a sectional exploded view of a preferred embodiment of the dual-purpose gas nozzle joint of the present invention. It should be noted that the following embodiments are described by using the French valve (Presta valve) and the American valve (Schrader valve) as examples, but the present invention is not limited to this, and other types of gas nozzles are also Applicable to the present invention.

As shown in the figure, the most important components of the dual-purpose gas nozzle joint of this embodiment include a main body 11, an air pressure source connector 12, a sealing slider 6, a fixing pin 7, a sleeve joint 13, and a sleeve 14. The main body 11 includes a first inflation channel 21, a switching valve chamber 5, and a second inflation channel 31, which are arranged along the axial direction of the main body 11. The switching valve chamber 5 is a barrel-shaped chamber including a first An end surface 51 and a second end surface 52. The first end surface 51 is provided with a first opening 511, and the second end surface 52 is provided with a second opening 521. The first opening 511 communicates with the first inflation channel 21 and the second opening 521. Connected to the second inflatable channel 31.

In addition, a vent ring groove 116 and two seal ring grooves 117 are provided around the outer periphery of the body 11, and the vent ring groove 116 is disposed between the two seal ring grooves 117. As shown in the figure, two seal rings 81 and 82 are respectively disposed in the two seal ring grooves 117, and two vent holes 53 are opened on the side wall surface of the switching valve chamber 5 and communicate with the vent ring grooves 116. Accordingly, in this embodiment, the two sealing rings 81 and 82 are arranged to form an airtightness between the outer peripheral surface of the body 11 and the inner peripheral surface of the air pressure source connecting member 12 so as to flow through the vent ring groove 116. Gas will not leak.

In addition, the body 11 includes a front end 111 and a rear end 112. The rear end 112 includes a convex portion 113, and the convex portion 113 defines a radial through hole 110, which is connected to the second inflation channel 31. In addition, as shown in the figure, the rear end 112 of the body 11 is provided with a cap 115, and the rear part 113 is sleeved with a rear air-tight ring 114, and the rear air-tight ring 114 is located between the cap 115 and the rear end 112. between. However, the rear end 112 of the body 11, the cap 115, and the rear air-tight ring 114 constitute a second air nozzle connection end 3, which can be used to connect the second air nozzle S; the second air nozzle S of this embodiment is an American-style gas mouth.

Furthermore, the air pressure source connecting piece 12 is arranged on the main body 11, and the air pressure source connecting piece 12 includes an air passage 121, a pressure relief valve 122, and an air inlet 4, and one end of the air passage 121 communicates with the air inlet 4, and the other end of the air passage 121 is communicated to the ventilation ring groove 116 of the switching valve chamber 5. The pressure relief valve 122 selectively connects the air passage 121 to the atmosphere for pressure regulation.

In addition, the fixing pin 7 shown in the figure includes a through hole 71, a first end 72, and a second end 73, and the through hole 71 penetrates the first end 72 and the second end 73, and the fixing pin 7 is disposed in the first inflation channel 21, the first end 72 projects into the switching valve chamber 5, and the end surface of the first end 72 constitutes the first end surface 51, and the second end 73 is used to push against the first air nozzle P For the on-off valve P1, the first gas nozzle P referred to in this embodiment is a French gas nozzle.

In addition, the second end 73 of the fixing pin 7 of this embodiment is provided with a cross-shaped slot 731 that communicates with the through hole 71. However, in this embodiment, the second end 73 of the fixing pin 7 is designed as a cross-shaped slot 731. The main purpose is to facilitate the locking and fixing of the fixing pin 7 in the first inflation channel 21, or to loosen it from the body 11 Disassembly, even in assembly or repair, replacement. Also, as shown in FIG. 2, an O-ring 74 is sleeved around the outer ring of the fixing pin 7 in this embodiment, which can prevent gas from the outer peripheral surface of the fixing pin 7 and the first inflation channel 21 of the body 11. Leakage between the inner peripheral surface.

On the other hand, the sealed slider 6 is accommodated in the switching valve chamber 5 and can slide freely with loose fit. The sealed slider 6 of this embodiment is a cylindrical slider whose material is rubber and which includes a first An airtight surface 61, and a second airtight surface 62, the first airtight surface 61, and the second airtight surface 62 are straight The diameters are larger than the diameters of the first opening 511 on the first end 72 of the fixing pin 7 and the second opening 521 on the second end surface 52, so that the first airtight surface 61 and the second airtight surface 62 can completely cover The first opening 511 and the second opening 521 are sealed.

As shown in the figure, the sleeve joint 13 is locked and sleeved on the front end 111 of the body 11, and the sleeve joint 13 is provided with two radial through grooves 131, and two clamping blocks 15 are respectively accommodated in the two radial through The groove 131 can slide relative to each other. Another two resetting elements 16 are arranged between the two clamping blocks 15 and provide the two clamping blocks 15 with a force to open away from each other. The resetting element 16 of this embodiment is: spring. Furthermore, the surface of each clamp block 15 facing the first inflation channel 21 in this embodiment includes an engaging tooth 151 for engaging an external thread of the first air valve P.

In addition, a sleeve 14 is shown in the figure, which is sleeved on the sleeve joint 13, and the inner ring surface of the sleeve 14 includes a segment 140, and the segment 140 will drive the two clamp blocks 15 toward each other, or allow They are moved away from each other by the opening force of the two resetting elements 16. In addition, a seal ring, that is, a front seal ring 83 and a rear seal ring 84 are provided in each of the two radial through grooves 131. The front seal ring 83 is provided on the sleeve joint 13 and the rear seal ring 84 is provided on the body 11. The front seal ring 83 and the rear seal ring 84 mainly prevent gas from flowing through the radial through groove 131 and self-sleeve the joint. Leaks between 13 and sleeve 14 or between body 11 and sleeve 14.

In addition, a front air-tight ring 85 is shown in the figure and is disposed in the socket 13. The front air-tight ring 85 mainly prevents gas from leaking from the gap between the first air nozzle P and the socket 13. Generally speaking, the first air nozzle connection end 2 can be formed by including the sleeve joint 13, the front air-tight ring 85, and the sleeve 14, which is used to connect the first air nozzle P, that is, the French air nozzle.

The operation principle of the dual-purpose gas nozzle connector of this embodiment is briefly described below. Please refer to FIG. 4 first, which is a cross-sectional view of a preferred embodiment of the present invention when the American-style gas nozzle is connected. As shown in the figure, when a second gas nozzle S is coupled to the second gas nozzle connection end 3, the external thread of the American gas valve is screwed to the internal thread of the cap 115, and the second gas nozzle S The front edge abuts on the rear air-tight ring 114 to form an air-tightness, and the convex portion 113 abuts against the on-off valve S1 of the second valve S, thereby opening the on-off valve S1, so that the second valve S and the inside of the joint Communication is formed; in order to conveniently display the on-off valve S1 of the second gas nozzle S, a partial cross section is taken at the front end of the second gas nozzle S.

At this time, because the gas pressure higher than one atmosphere in the second gas nozzle S is connected to the second inflation channel 31, the second gas nozzle S will generate an airflow into the joint, and push the sealed slider 6 toward the switching valve chamber 5 The first end surface 51 slides and seals the first opening 511 so that the gas does not leak out through the first inflation channel 21. Then, the inflation is started, that is, the inflation air flow from the air pressure source passes through the air inlet 4 and the air passage 121 of the air pressure source connector 12, and the air ring groove 116 of the body 11, the switching valve chamber 5, the second inflation channel 31, and the diameter. The second air nozzle S is inflated into the through hole 110.

However, the above operation description is based on the fact that the second valve S still contains gas. If there is no gas in the second valve S, that is, when the pressure in the first valve S is less than or equal to one atmosphere, The operation of the dual-purpose nozzle connector of this embodiment will be described later.

When the second air nozzle S is coupled to the second air nozzle connection end 3, the airtight slider 6 can be pushed because there is no gas or sufficient air pressure in the second air nozzle S, and when it is directly inflated, it comes from the air intake The air flow from the port 4 will flow out from the first inflation channel 21 and the second inflation channel 31, respectively. However, because of A second air nozzle S and a tire (not shown) are connected to the two inflation channels 31, so when the pressure in the tire is higher than or equal to one atmosphere, more than half of the inflation air will pass through the first inflation channel 21 The outflow at this time will drive the seal block 6 to move to the first end surface 51 of the switching valve chamber 5 and seal the first opening 511 and the first inflation channel 21. Next, the inflation airflow will be directly charged into the second air nozzle S, and as the pressure in the second air nozzle S continues to rise, the air pressure inside the second air nozzle S will continue to drive the sealing slider 6 to seal The first inflation channel 21 does not allow gas to leak from the first inflation channel 21.

On the other hand, the operation of the dual-purpose gas nozzle connector of this embodiment to connect the French gas nozzle is described below. Please refer to FIG. 5, which is a cross-sectional view of a preferred embodiment of the dual-purpose gas nozzle connector of the present invention when the French gas nozzle is connected . When the first air nozzle P is to be connected, the sleeve 14 is first operated to slide in the direction of the second air nozzle connection end 3, and at this time, the clamping block 15 will move radially outward to facilitate the insertion of the first air nozzle P. However, after the first gas nozzle P is inserted into the first gas nozzle connection end 2, the sleeve 14 is operated to slide it toward the first gas nozzle P, so that the engaging teeth 151 on the clamping block 15 bite the French gas nozzle. Outside thread. At this time, the front airtight ring 85 will be airtight with the outer peripheral surface of the first air nozzle P.

Next, slightly rotate the sleeve 14 for about a half turn, and the components including the body 11 and the socket 13 will also rotate accordingly, so that the engaging teeth 151 will drive the engaged first air nozzle P toward the fixed pin 7 to It is ensured that the front end of the first gas nozzle P is pressed against the second end 73 of the fixing pin 7, and then the opening and closing valve P1 of the first gas nozzle P is opened, so that the inside of the first gas nozzle P and the first inflation channel 21 are in communication.

At this time, because the gas pressure higher than one atmosphere in the first air nozzle P is communicated to the first inflation channel 21, the first air nozzle P will generate an airflow into the joint, and push the sealed slider 6 toward the switching valve chamber 5 The second end surface 52 slides and seals the second opening 521 so that the gas will not leak out through the second inflation channel 31. Then, the inflation is started, that is, the air flow from the air pressure source passes through the air inlet 4 and the air passage 121 of the air pressure source connector 12, and the air ring groove 116, the switching valve chamber 5, and the first inflation channel 21 of the body 11 The first air nozzle P is inflated.

However, the above operation description is based on the fact that the first gas nozzle P still contains gas. If there is no gas in the first gas nozzle P, that is, when the pressure in the first gas nozzle P is less than or equal to one atmosphere, The operation of the dual-purpose nozzle connector of this embodiment will be described later.

When the first air nozzle P is coupled to the first air nozzle connection end 2, because there is no gas or sufficient air pressure in the first air nozzle P, the sealed slider 6 can be pushed. The air flow from the port 4 will flow out from the first inflation channel 21 and the second inflation channel 31, respectively. However, since the first air nozzle P and the tire (not shown) are connected to the first inflation channel 21, when the pressure in the tire is higher than or equal to one atmosphere, more than half of the inflation air flow will pass through first. The second inflation channel 31 flows out. At this time, the outflowing air will drive the sealing block 6 to seal the second inflation channel 31. The next inflation flow will be directly charged into the first air nozzle P, and with the first gas The pressure in the mouth P keeps rising, and the internal air pressure will continue to drive the sealing slider 6 to seal the second inflation channel 31 and prevent the gas from leaking out of the second inflation channel 31.

The above embodiments are merely examples for the convenience of description. The scope of the claimed rights of the present invention should be based on the scope of the patent application, rather than being limited to the above embodiments.

11‧‧‧ Ontology

111‧‧‧Front

112‧‧‧ backend

114‧‧‧ rear airtight ring

115‧‧‧ Cap

12‧‧‧Pneumatic source connection

13‧‧‧ sets of connectors

131‧‧‧Radial through groove

14‧‧‧ sleeve

15‧‧‧ Clamp

151‧‧‧occlusal teeth

16‧‧‧ Reset element

6‧‧‧closed slider

61‧‧‧First airtight surface

62‧‧‧Second Airtight Surface

7‧‧‧ fixed pin

72‧‧‧ the first end

73‧‧‧ second end

731‧‧‧cross slot

74‧‧‧O-ring

81,82‧‧‧Seal ring

83‧‧‧Front seal ring

84‧‧‧ rear seal ring

85‧‧‧ front airtight ring

Claims (11)

A dual-purpose nozzle joint includes: a first nozzle connection end including a first inflation channel; a second nozzle connection end including a second inflation channel; and an air inlet port for Connected to a pressure source; a switching valve chamber connected to the first inflation channel, the second inflation channel, and the air inlet; the switching valve chamber includes a first end surface and a second end surface; A first opening is opened on the first end surface, and a second opening is opened on the second end surface. The first opening is connected to the first inflation channel, and the second opening is connected to the second inflation channel. It is housed in the switching valve room and can slide freely; and a fixing pin including a through hole, a first end, and a second end, the through hole penetrates the first end and the second end The fixing pin is disposed in the first inflation channel, the first end extends into the switching valve chamber, and an end surface of the first end constitutes the first end surface; wherein when the first air nozzle connection end is coupled to a first When a nozzle is opened, the opening and closing valve of the first nozzle is pushed against the second of the fixed pin. The on-off valve is further opened, and the airflow from the first air nozzle pushes the sealing slider to seal the second inflation channel, and the inflation airflow from the air pressure source passes through the air inlet, the switching valve chamber, And the first inflation channel inflates the first gas nozzle; wherein when the second gas nozzle connection end is coupled to a second gas nozzle, the airflow from the second gas nozzle pushes the sealing slider to seal The first inflation channel, and an inflation flow from the air pressure source passes through the intake air The second valve is inflated by the port, the switching valve chamber, and the second inflation channel. For example, the dual-purpose nozzle connector of claim 1, wherein when the first nozzle connection end is coupled to the first nozzle and the pressure in the first nozzle is about one atmosphere, More than half of the air flow will first flow out through the second inflation channel, and the sealing slider will move and seal the second inflation channel; after inflating the first nozzle, the air pressure from the first nozzle will continue Ground driving the sealing slider to seal the second inflation channel; when the second air nozzle connection end is coupled to the second air nozzle, and the pressure in the second air nozzle is about one atmosphere, from the inlet More than half of the air flow from the air port will first flow out through the first inflation channel, the sealing slider will move and seal the first inflation channel; after the second air nozzle is inflated, the air pressure from the second air nozzle The sealing slider will be continuously driven to seal the first inflatable channel. For example, the dual-purpose gas nozzle connector of claim 1, wherein the switching valve chamber is a barrel-shaped chamber; the sealed slider is a cylindrical slider, which includes a first airtight surface and a second air The diameters of the dense surface, the first airtight surface, and the second airtight surface are larger than the diameters of the first opening and the second opening, respectively. For example, the dual-purpose gas nozzle connector of claim 3 further includes a body, the first inflatable channel is set in the body, and the fixing pin is screwed to be fixed to the body. For example, the dual-purpose gas nozzle connector of claim 4, further comprising an O-ring, which is disposed between the fixing pin and the body. If the dual-purpose gas nozzle connector of claim 4 or 5 further comprises a pressure source connection piece; the second inflation channel and the switching valve chamber are arranged in the body, and the pressure source connection piece is arranged in the body The body; the side wall surface of the switching valve chamber is provided with at least one vent hole, which is connected to the air inlet; the air pressure source connection includes an air passage, a pressure relief valve, and the air inlet, and one end of the air passage is connected To the air inlet, the other end of the air passage communicates with the at least one air vent of the switching valve chamber; the pressure relief valve selectively connects the air passage to the atmosphere. For example, the dual-purpose gas nozzle joint of claim 6 further includes two seal rings, and a vent ring groove and a two seal ring groove are provided on the outer periphery of the body. The vent ring groove is provided between the two seal ring grooves. In the meantime, the ventilation ring groove is connected to the ventilation channel and the at least one ventilation hole; the two seal rings are respectively arranged in the two seal ring grooves, so that the outer peripheral surface of the body and the inner peripheral periphery of the pressure source connection The surfaces are airtight. For example, the dual-purpose gas nozzle connector of claim 6 further includes a rear air-tight ring and a cap. The body includes a front end and a rear end. The rear end includes a convex portion. At the rear end, the rear airtight ring is sleeved on the convex portion and interposed between the cap and the rear end. For example, the dual-purpose gas nozzle connector of claim 8, wherein the second inflatable channel is provided at the rear end of the body, and the convex portion is provided with at least one radial through hole, which is connected to the second inflatable channel; When the second gas nozzle is connected to the second gas nozzle connection end, the front edge of the second gas nozzle abuts the rear air-tight ring, the convex part abuts against the on-off valve of the second gas nozzle, and An inflation flow from the air pressure source passes through the air inlet, the air passage, the at least one vent hole, the switching valve chamber, the second inflation channel, and the at least one radial through hole to inflate the second air nozzle. A dual-purpose gas nozzle connector includes a body including a first inflation channel, a second inflation channel, and a switching valve chamber. The switching valve chamber is interposed between the first inflation channel and the second inflation channel. An air pressure source connecting piece is arranged in the body. The air pressure source connecting piece includes an air passage and an air inlet, and the air passage is connected to the switching valve chamber and the air inlet. The air inlet is used to connect to a pressure source; a sealed slider is housed in the switching valve chamber and can slide freely; and a fixed pin includes a through hole and a first end And a second end, the through hole penetrates the first end and the second end, the fixing pin is disposed in the first inflation channel, the first end extends into the switching valve chamber, and the second end It is an on-off valve used to push against a valve. A dual-purpose gas nozzle connector includes: a body including a first inflation channel, a second inflation channel, and a switching valve chamber; the switching valve chamber is a barrel-shaped chamber including a first end surface, And a second end surface, the first end surface has a first opening, the second end surface has a second opening, the first opening communicates with the first inflation channel, and the second opening communicates with the second inflation channel; An air pressure source connecting piece is arranged in the body, the air pressure source connecting piece includes an air inlet, and the air inlet is used for connecting to a air pressure source and communicating with the switching valve chamber of the body; a dense An end slide, which is housed in the switching valve chamber; and A fixing pin includes a through hole, a first end, and a second end. The through hole penetrates the first end and the second end. The fixing pin is disposed in the first inflation channel. A first end extends into the switching valve chamber, and an end surface of the first end constitutes the first end surface; wherein, when the first inflation channel is coupled to a first air nozzle, the airflow from the first air nozzle pushes the airtight valve. The second air channel is coupled to a second air nozzle, the air flow from the second air nozzle pushes the airtight slider to seal the first air opening; The first opening on an end surface.