TWI763471B - Valve connector - Google Patents

Abstract

A valve connector includes a body, an injector, a lever, a connecting device, and an airtight device. The body is provided with a first through hole, a second through hole for communicating with an air hose of an air pump, and a third through hole located between the first through hole and the second through hole. The two opposite ends of the third through hole respectively communicate with the first through hole and the second through hole. The injector is movably accommodated in the first through hole and has a fourth through hole and a fifth through hole communicating with the fourth through hole. The lever is pivotally connected to the body and is configured to push the injector to move relative to the first through hole. The connecting device is arranged in the body and communicates with the fifth through hole, and the connecting device is adapted to be pressed by the injector to attach with an air valve of an inflating object. The airtight device is configured to selectively airtightly close at least one end of the third through hole as the injector moves relative to the first through hole, so that the second through hole selectively communicates with the fourth through hole through the third through hole.

Description

Air nozzle connector

The present invention relates to a gas nozzle joint, in particular to a gas nozzle joint applied to a pump.

The air nozzle connector of the inflator is used to accept the air nozzle of the inflatable object, so that the inflator can inflate the inflatable object. However, conventional valve fittings do not remain airtight when the lever is not raised. In other words, once the user operates the piston rod to inflate before the conventional air nozzle connector has not yet received the air nozzle of the object to be inflated, the high-pressure gas will be directly ejected through the air nozzle connector. Therefore, the conventional valve fittings cannot be applied to various types of pumps and cannot meet various inflation requirements. For example, when the conventional valve fittings are used in pumps with dual air tubes, if only one of the dual air tubes is used by When the conventional air nozzle connector is connected to the object to be inflated, but the other trachea and the air nozzle connector are not connected to any object to be inflated, once inflated, the high-pressure gas will be ejected from the air nozzle connector that is not connected to the object to be inflated. Reduced inflation efficiency.

The invention provides a gas nozzle joint which can keep air tight when the lever is not pulled up.

The gas nozzle joint provided by the present invention includes a body, an injector, a lever, a connecting device and an airtight device. The body is provided with a first through hole, a second through hole suitable for communicating with the trachea of the inflatable device, and a position a third through hole between the first through hole and the second through hole. The first through hole has a pivot end and a connecting end. The opposite ends of the third through hole communicate with the first through hole and the second through hole respectively. The injector is movably accommodated in the first through hole and has a fourth through hole and a fifth through hole communicating with the fourth through hole. The lever is pivotally connected to the pivot end and is configured to push the injector to move relative to the first through hole. The connecting device is arranged at the connecting end and communicates with the fifth through hole, and the connecting device is suitable for being pressed by the pressure injector to connect with the air nozzle of the object to be inflated. The air-tight device is configured to selectively air-tightly close at least one end of the third through-hole as the injector moves relative to the first through-hole, so that the second through-hole selectively communicates with the fourth through-hole through the third through-hole.

In an embodiment of the present invention, the airtight device is disposed in the injector and accommodated in the first through hole. The air-tight device selectively and air-tightly closes one end of the third through-hole adjacent to the first through-hole as the injector moves relative to the first through-hole.

In an embodiment of the present invention, the airtight device includes two annular grooves formed on the outer periphery of the injector, two airtight rings respectively disposed in the two annular grooves, and a spacer between the two annular grooves. The lever is pivotable relative to the pivot end to switch between a release position and a locked position. When the lever is in the release position, the spacer portion faces the third through hole, the two airtight rings abut against the inner wall surface of the first through hole airtightly, and the airtight device airtightly closes the third through hole adjacent to the first through hole. On one side of the hole, the third through hole does not communicate with the fourth through hole. When the lever is in the locking position, the injector is pushed by the lever to move relative to the first through hole, and the spacer faces the inner wall surface of the first through hole, so that the third through hole communicates with the fourth through hole.

In an embodiment of the present invention, the fourth through hole is adjacent to one of the two annular grooves, and the fourth through hole faces and communicates with the third through hole when the lever is in the locking position.

In an embodiment of the present invention, the injector is provided with a linkage portion formed at one end of the injector and abutting against the lever, and the outer periphery of the injector is provided with a linkage portion located between the linkage portion and the fourth through hole Leak stop ring.

In an embodiment of the present invention, the body includes a head and a body connected to the head. The first through hole is formed in the head, the second through hole is formed in the body, and the third through hole is formed between the head and the body. A first accommodating portion penetrating the pivot end, a second accommodating portion penetrating the connecting end, and a limiting portion located between the first accommodating portion and the second accommodating portion are formed in the first through hole. The injector is movably accommodated between the first accommodating portion and the limiting portion. The connecting end is provided with a cover.

In an embodiment of the present invention, the air nozzle joint further includes a switching member, which is pivotally disposed in the first container portion. One end of the switching member is exposed to the head and the other end is provided with a socket hole which is sleeved with the link portion, so that the switching member is configured to drive the injector to rotate synchronously. The connecting device includes a limiter that is movably but non-rotatably arranged on the limiter, a soft pressing piece that is accommodated in the second accommodating portion and located between the limiter and the cover, and is movably arranged on the fifth port. The top core piece between the hole, the limit piece and the soft pressing piece, and the elastic piece that elastically biases the top core piece. The switching member can pivot relative to the first accommodating portion to change between the first position and the second position. When the switching member is in the first position, the injector is driven by the switching member to form a dislocation with the core member, so that the core member is displaced. It is limited to the stopper and is suitable for the American valve. When the switching member is located at the second position, the injector is driven by the switching member and corresponds to the ejector, so that the ejector is biased by the elastic member and can move relative to the limiting member and the ejector and is suitable for a French gas nozzle.

In an embodiment of the present invention, the air nozzle joint further includes a pressure relief device, which is disposed on the body and includes a seat body, a valve stem, and a biasing member that elastically biases the valve stem. The seat body has a perforation communicating with the second through hole and the outside, and an air sealing ring arranged on one side of the perforation. The valve rod is movably penetrated through the through hole and has a pressing end exposed to the through hole, a biasing end opposite to the pressing end, and an abutting portion formed between the pressing end and the biasing end and located in the second through hole. The opposite ends of the biasing piece elastically abut against the inner wall surface and the biasing end of the second through hole, respectively. The abutting portion selectively and airtightly abuts against the air seal ring as the valve stem moves relative to the through hole, so that the second through hole selectively communicates with the outside world through the through hole.

Based on the above, in the embodiment of the present invention, the air-tight device is configured to selectively air-tightly close at least one end of the third through-hole as the injector moves relative to the first through-hole, so that the second through-hole is selected The airtight state of the air nozzle joint can be controlled through the lever.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, the following embodiments are given and described in detail with the accompanying drawings as follows.

1: Air nozzle connector

10: Ontology

101: Head

102: Body

11: The first through hole

111: Pivot end

112: Connector

113: The first volume

114: Second Volume

115: Limiting part

116: Cover

12: Second through hole

13: Third through hole

20: Injector

21: Fourth through hole

22: Fifth through hole

23: Linkage

24: Leak stop ring

30: lever

40: Connection device

41: Limiter

42: Soft pressing parts

43: top heart piece

44: Elastic

50: Airtight device

51: Ring groove

52: Air tight ring

53: Spacer

60: Switching pieces

61: socket hole

70: Pressure relief device

71: seat body

711: Perforation

712: Gas seal ring

72: Stem

721: Pressing end

722: Bias terminal

723: Abutment

73: Bias

2: Trachea

3: air nozzle

FIG. 1 is a schematic view of the appearance of an embodiment of the gas nozzle joint of the present invention, and shows that the gas nozzle joint is applied to a double-pipe air pump.

FIG. 2 is an exploded schematic view of the gas nozzle joint shown in FIG. 1 .

Fig. 3 is a schematic cross-sectional view of the valve fitting shown in Fig. 1, showing the lever in the release position.

FIG. 4 is another schematic cross-sectional view of the gas nozzle joint shown in FIG. 1 , and shows that the lever is in the locked position and the engaging device is engaged with the gas nozzle.

FIG. 5 and FIG. 6 are schematic diagrams of the use of the air nozzle joint shown in FIG. 1 applied to a double air tube inflator.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Element symbols quoted in the following description will be regarded as the same or similar elements when the same element symbols appear in different drawings. These examples are only a part of the invention and do not disclose all possible embodiments of the invention. Rather, these embodiments are only examples of valve fittings within the scope of the patent application of the present invention.

Please refer to FIG. 1 to FIG. 4 in sequence, which are a schematic appearance diagram, an exploded schematic diagram, and a cross-sectional schematic diagram of an embodiment of the gas nozzle connector 1 of the present invention. The valve fitting 1 shown in this embodiment can be applied to a dual air pump. It can be understood that the aforementioned double-trachea inflator can have two air tubes 2, and the number of air nozzle joints 1 shown in this embodiment can provide two and are respectively installed at the ends of the two air tubes 2, so that when the double-trachea inflator is inflated, two air tubes can be provided. , the high-pressure gas is transported to the two gas nozzle joints 1 through the two gas pipes 2 respectively, so that the two objects to be inflated can be inflated at the same time. The operation and use state will be described in detail later. The structure of the gas nozzle joint 1 shown in this embodiment will be described below. and efficacy.

The gas nozzle joint 1 shown in this embodiment includes a body 10 , an injector 20 , a lever 30 , a connecting device 40 and an airtight device 50 . The body 10 is provided with a first through hole 11 , a second through hole 12 suitable for communicating with the trachea 2 of the inflatable device, and a third through hole 13 between the first through hole 11 and the second through hole 12 . The first through hole 11 has a pivot end 111 and a connection end 112 . The opposite ends of the third through hole 13 communicate with the first through hole 11 and the second through hole 12 respectively. The injector 20 is movably accommodated in the first through hole 11 and has at least one fourth through hole 21 and a fifth through hole 22 communicating with the fourth through hole 21 . The injector 20 of the present embodiment can have a plurality of fourth through holes 21 which are respectively formed to extend radially. The lever 30 is pivotally connected to the pivot end 111 and is configured to push the injector 20 to move relative to the first through hole 11 . The connecting device 40 is disposed on the connecting end 112 and communicates with the fifth through hole 22 . The connecting device 40 is suitable for being pressed by the pressure injector 20 to connect to the air nozzle 3 of the object to be inflated. The air-tight device 50 is configured to selectively air-tightly close at least one end of the third through-hole 13 as the injector 20 moves relative to the first through-hole 11 , so that the second through-hole 12 can selectively pass through the third through-hole 13 The fourth through hole 21 is communicated.

Further, the air-tight device 50 of this embodiment can be disposed in the injector 20 and accommodated in the first through hole 11 , and the air-tight device 50 is selectively air-tight as the injector 20 moves relative to the first through hole 11 . The third through hole 13 is closed to one end of the first through hole 11 .

In order for the airtight device 50 to airtightly close the end of the third through hole 13 adjacent to the first through hole 11 , the airtight device 50 can include two annular grooves 51 formed on the outer periphery of the injector 20 , and two annular grooves 51 are respectively provided. The airtight ring 52 in the two ring grooves 51 and a spacer 53 between the two ring grooves 51 . In addition, the lever 30 can be pivoted relative to the pivot end 111 to change between a release position (FIG. 3) and a locked position (FIG. 4).

Further, the fourth through hole 21 is adjacent to one of the two annular grooves 51 , and the fourth through hole 21 faces and communicates with the third through hole 13 when the lever 30 is in the locking position. In addition, in order to prevent the high-pressure gas from leaking from the pivot end 111 , the injector 20 is provided with a linkage portion 23 formed at one end of the injector 20 and abutting against the lever 30 , and an outer peripheral edge of the injector 20 is provided with a connecting portion 23 located at one end of the injector 20 and abutting against the lever 30 . The leakage stop ring 24 between the linkage portion 23 and the fourth through hole 21 .

The body 10 of this embodiment can include a head 101 and a body 102 connected to the head 101 . The first through hole 11 is formed in the head 101 , the second through hole 12 is formed in the body 102 , and the third through hole 13 is formed between the head 101 and the body 102 . In the first through hole 11 are formed a first accommodating portion 113 penetrating the pivot end 111 , a second accommodating portion 114 penetrating the connecting end 112 , and a space between the first accommodating portion 113 and the second accommodating portion 114 . Limiting part 115 . The injector 20 is movably accommodated between the first accommodating portion 113 and the limiting portion 115 , and a cover member 116 is provided at the connecting end 112 .

In order to make the air nozzle fitting 1 shown in this embodiment applicable to various air nozzles, the air nozzle fitting 1 can further include a switching member 60, which is pivotally arranged in the first container portion 113, and one end of the switching member 60 is exposed to the head. 101 and the other end is provided with a socket hole 61 which is connected to the link part 23 , so that the switching member 60 is configured to drive the injector 20 to rotate synchronously. The engaging device 40 can include a limiting member 41 movably but not rotatably disposed on the limiting portion 115 , a soft pressing member accommodated in the second accommodating portion 114 and located between the limiting member 41 and the cover member 116 . 42. A core member 43 movably disposed between the fifth through hole 22, the limiting member 41 and the soft pressing member 42, and an elastic member 44 for elastically biasing the core member 43. The switching member 60 can pivot relative to the first accommodating portion 113 and change between the first position and the second position. When the switching member 60 is located at the first position, the injector 20 is driven by the switching member 60 to form a dislocation with the core member 43 , so that the core member 43 is restricted to the limiting member 41 and is suitable for the American gas nozzle. When the switching member 60 is located at the second position, the injector 20 is driven by the switching member 60 to correspond to the ejector 43 , so that the ejector 43 is biased by the elastic member 44 and can move relative to the limiting member 41 and the ejector 20 . Suitable for French valves.

In order to enable the gas nozzle joint 1 shown in this embodiment to have a pressure relief function to adjust the air pressure in the object to be inflated, the gas nozzle joint 1 can further include a pressure relief device 70, which is arranged on the body 102 and includes a base 71, a The valve stem 72 and a biasing member 73 that elastically biases the valve stem 72 . The base body 71 has a through hole 711 communicating with the second through hole 12 and the outside, and an air seal ring 712 disposed on one side of the through hole 711 . The valve stem 72 is movably penetrated through the through hole 711 and has a pressing end 721 exposed to the through hole 711 , a biasing end 722 opposite to the pressing end 721 , and a pressing end 721 and the biasing end 722 formed between the pressing end 721 and the biasing end 722 . The contact portion 723 in the second through hole 12 . The opposite ends of the biasing member 73 elastically abut against the inner wall surface of the second through hole 12 and the biasing end 722 respectively, and the abutting portion 723 selectively and airtightly abuts against the air as the valve stem 72 moves relative to the through hole 711 . The sealing ring 712 enables the second through hole 12 to selectively communicate with the outside world through the through hole 711 . The user can apply a force greater than the biasing force of the biasing member 73 to the pressing end 721 to make the valve stem 72 move relative to the through hole 711, and the abutting portion 723 does not abut the air seal ring 712, so that the second through hole 12 The outside world is communicated through the through hole 711 . Therefore, the gas in the object to be inflated can be discharged to the outside through the connecting device 40 , the fifth through hole 22 , the fourth through hole 21 , the third through hole 13 and the second through hole 12 .

Referring to FIG. 3 , when the lever 30 is in the release position, the spacer 53 faces the third through hole 13 , the two airtight rings 52 are airtightly abutted against the inner wall surface of the first through hole 11 , and the airtight device 50 is airtight One side of the third through hole 13 adjacent to the first through hole 11 is closed off, so that the third through hole 13 does not communicate with the fourth through hole 21 . Therefore, the high-pressure gas generated by the pump cannot pass through the trachea 2 to the object to be inflated.

Referring to FIG. 4 , when the connecting device 40 is connected to the air nozzle 3 and the lever 30 is in the locked position, the injector 20 is pushed by the lever 30 to move relative to the first through hole 11 , the limiting member 41 and the soft pressing member 42 are moved by the lever 30 . The injector 20 is squeezed to firmly connect the gas nozzle 3, so that the core member 43 abuts the gas core of the gas nozzle 3, and the spacer 53 faces the inner wall surface of the first through hole 11, so that the third through hole 13 communicates with the second through hole 11. Four through holes 21 . Therefore, the high-pressure gas generated by the air pump can pass through the air nozzle 3 through the air pipe 2 , the second through hole 12 , the third through hole 13 , the fourth through hole 21 , the fifth through hole 22 and the core piece 43 of the connecting device 40 . Enter the object to be inflated.

Please refer to FIG. 5 first, as described above, the number of air nozzle joints 1 shown in this embodiment can be provided two and are respectively installed at the ends of the two air pipes 2, and the two air nozzle joints 1 can respectively connect two objects to be inflated ( The two tires of the bicycle), and the two levers 30 of the two air nozzle joints 1 are set in the locked position, when the double air pipe inflator is inflated, the high-pressure gas is transported to the two air nozzle joints 1 through the two air pipes 2 respectively and enters the bicycle. Two tires.

Please refer to FIG. 6 , which shows another inflation requirement, that is, when only a single tire needs to be inflated, only one of the air pipes 2 of the double air pipes 2 is connected to the object to be inflated (tire) through the air nozzle joint 1, but the other air pipe 2 And when the valve fitting 1 is not connected to the tire. Since the lever 30 of the valve joint 1 not connected to the tire is in the release position, the valve joint 1 that is not connected to the tire is kept airtight, and the high-pressure gas generated by the pump cannot be ejected through the air pipe 2 and the valve joint 1 that are not connected to the tire. , but maintaining an air tube 2 capable of inflating a single tire through the valve joint 1 .

To sum up, the air-tight device 50 is configured to selectively air-tightly seal at least one end of the third through-hole 13 as the injector 20 moves relative to the first through-hole 11 , so that the second through-hole 12 can be selectively closed. The ground is connected to the fourth through hole 21 through the third through hole 13 , so the airtight state of the air nozzle joint 1 can be controlled through the lever 30 .

Although the present invention has been disclosed above through the embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field, without departing from the spirit and scope of the present invention, can make There are some changes and modifications, so the scope of protection of the present invention should be determined by the scope of the appended patent application.

1: Air nozzle connector

10: Ontology

101: Head

102: Body

11: The first through hole

111: Pivot end

112: Connector

113: The first volume

114: Second Volume

115: Limiting part

116: Cover

12: Second through hole

13: Third through hole

20: Injector

21: Fourth through hole

22: Fifth through hole

23: Linkage

24: Leak stop ring

30: lever

40: Connection device

41: Limiter

42: Soft pressing parts

43: top heart piece

44: Elastic

50: Airtight device

51: Ring groove

52: Air tight ring

53: Spacer

60: Switching pieces

61: socket hole

70: Pressure relief device

71: seat body

711: Perforation

712: Gas seal ring

72: Stem

721: Pressing end

722: Bias terminal

723: Abutment

73: Bias

2: Trachea

Claims (6)

An air nozzle joint, comprising: a body provided with a first through hole, a second through hole suitable for communicating with an air pipe of an inflatable device, and a third through hole located between the first through hole and the second through hole a hole, the first through hole has a pivot end and a connecting end, the opposite ends of the third through hole are respectively connected to the first through hole and the second through hole; an injector, movably accommodated The first through hole has at least one fourth through hole and a fifth through hole communicating with the at least one fourth through hole; a lever is pivotally connected to the pivoting end and is configured to push the injection The device moves relative to the first through hole; a connecting device is disposed at the connecting end and communicates with the fifth through hole, the connecting device is suitable for being pressed by the injector to connect with the gas nozzle of the object to be inflated; and an airtight a device disposed in the injector and accommodated in the first through hole, the air-tight device is configured to selectively hermetically close the third through hole as the injector moves relative to the first through hole Adjacent to one end of the first through hole, the second through hole selectively communicates with the at least one fourth through hole through the third through hole, and the airtight device includes two formed on the outer periphery of the injector. a ring groove, two airtight rings respectively disposed in the two ring grooves and a spacer between the two ring grooves, the lever can pivot relative to the pivot end to change between the release position and the lock position ; When the lever is in the release position, the spacer faces the third through hole, the two airtight rings airtightly abut on the inner wall surface of the first through hole, and the airtight device airtightly closes the first through hole The three through holes are adjacent to one side of the first through hole, so that the third through hole does not communicate with the at least one fourth through hole; when the lever is in the locking position, the injector is pushed by the lever to face the at least one fourth through hole. The first through hole moves, and the spacer faces the inner wall surface of the first through hole, so that the third through hole communicates with the at least one fourth through hole. The valve fitting of claim 1, wherein the at least one fourth through hole is adjacent to one of the two annular grooves, and the at least one fourth through hole faces and communicates with the lever when the lever is in the locked position the third through hole. The gas nozzle joint according to claim 1 or 2, wherein the injector is provided with a linkage portion formed at one end of the injector and abutting against the lever, and an outer periphery of the injector is provided with a link located at the A leak-proof ring between the linkage portion and the at least one fourth through hole. The valve fitting as claimed in claim 3, wherein the body comprises a head and a body connected to the head, the first through hole is formed in the head, and the second through hole is formed in the body , and the third through hole is formed between the head and the body, and the first through hole forms a first cavity penetrating the pivot end, a second cavity penetrating the connecting end, and a A limiting portion is located between the first accommodating portion and the second accommodating portion, the injector is movably accommodated between the first accommodating portion and the limiting portion, and the connecting end is provided with a cover. The air nozzle joint according to claim 4, further comprising: a switching member, which is pivotally disposed in the first container, one end of the switching member is exposed to the head portion, and the other end is provided with a sleeve connected to the linkage The socket hole of the stopper part, so that the switching part is configured to drive the injector to rotate synchronously; the connecting device includes a stopper which is movably but not rotatably arranged on the stopper part, a stopper which is accommodated in the first stopper. A soft pressing piece with two accommodating parts located between the limiting piece and the cover piece, a core piece movably disposed between the fifth through hole, the limiting piece and the soft pressing piece, and an elastic piece that elastically biases the jack; the switching piece can pivot relative to the first accommodating portion to change between a first position and a second position, when the switching piece is in the first position, the injection The device is driven by the switching member to form a dislocation with the core member, so that the The jacking piece is limited to the limiting piece and is suitable for American-style air nozzles; when the switching piece is at the second position, the injector is driven by the switching piece to correspond to the jacking piece, so that the jacking piece is subject to the The elastic member is biased and can move relative to the limiting member and the injector so as to be suitable for a French gas nozzle. The gas nozzle joint according to claim 4, further comprising: a pressure relief device disposed on the body and comprising a seat body, a valve stem and a biasing member for elastically biasing the valve stem, the seat body having A through hole communicating with the second through hole and the outside world, and an air seal ring disposed on one side of the through hole, the valve stem is movably penetrated through the through hole and has a pressing end exposed to the through hole, and an opposite to the through hole. The biasing end of the pressing end and an abutting portion formed between the pressing end and the biasing end and located in the second through hole, the opposite ends of the biasing piece elastically abut against the second through hole respectively The inner wall surface of the hole and the offset end, the abutting portion selectively air-tightly abuts the air seal ring as the valve stem moves relative to the through hole, so that the second through hole selectively communicates with the outside world through the through hole .

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