TWI598530B - Swivel jaw air nozzle - Google Patents

Description

Rotary jaw type nozzle

The present invention relates to an inflatable device, and more particularly to a rotary jaw type air nozzle.

According to the different types of tire nozzles, the conventional nozzle joints cannot be used universally, so they must be replaced during use, and there is inconvenience in replacement. At present, many manufacturers have developed a universal nozzle for the American nozzle and the French nozzle. The main purpose is to design a lever that can be pulled up and down, and a displacement ejector is designed inside and pulled by the wrench. The rod is pulled up and down to drive a plurality of clamps to clamp and loosen the thimble, so that the French nozzle can be inflated when the thimble is pushed in, and the American nozzle can be used when the ejector is pushed outward. Inflate.

However, the general-purpose air nozzle has some problems in practical use. One of them is that the trigger must be pulled up and down, which is not intuitive enough to operate, and has the problem of insufficient operation; the other is that the wrench must be between the ejector pins. Braking and loosening by means of additional clamps result in more components and higher manufacturing costs and complicated assembly. The other is that the clamping force of the American or French air nozzles is low, which is easy to cause American gas. The mouth or French air nozzle is loose, and there is difficulty in inflation.

In view of this, in order to improve the prior art, the conventional nozzle joint has insufficient operation and intuition, and the components are high, the manufacturing cost is high, the assembly work is complicated, and the American air nozzle and Therefore, the present invention provides a rotary jaw type air nozzle, which mainly comprises: a nozzle body having a top and bottom chamber, an American symbol and a a French symbol; an inner cylinder is placed in the chamber of the gas nozzle body and reciprocally slidably along the chamber, the inner cylinder axially penetrates a shaft hole; a screw cap is attached to one end of the inner cylinder Rotating in combination, and located at the top end of the nozzle body, the cap has an indication area at one end, and the other end of the cap has an inwardly extending pocket, and two pressure walls on opposite sides of the slot And two sliding grooves on the opposite sides of the container; a clamping jaw having a ring portion at one end and a plurality of annularly arranged claw portions at the other end, the ring portion being coupled to the other end of the inner tube, the claws a lateral portion has a concave portion and a convex portion connected to the concave portion; a bundle of rings having elastic deformation capability is disposed in the clamping jaw; and a thimble is disposed in the shaft hole of the inner cylinder, the thimble Two opposite sides have two convex wings; a spring is placed in the cavity of the screw cap, Abutting against one end of the ejector pin; an action ring coupled to the bottom end of the air nozzle body, the inner circumferential surface of the action ring having a ring flange, the ring flange abutting the claw portion of the clamping jaw On the side surface; when the cap is rotated until the indication area is aligned with the American symbol of the nozzle body, the spring pushes the thimble down, and the pressure wall of the cap is pressed against the bulge of the thimble The ejector pin is fixed for an American air nozzle to penetrate into the bundle ring, and the ejector pin is driven by the American air nozzle to drive the inner cylinder, the screw cap, the clamping jaw and the bundle ring to the gas Moving the tip end of the nozzle body such that the ring flange of the action ring abuts against the concave portion of the jaw, and the ring flange abuts against the convex portion of the jaw, and the claw portion of the jaw is moved toward Retracting, thereby compressing the loop, such that the American bell is tightly bundled by the loop to inflate the American nozzle; when the cap is rotated to the indication area, the French symbol of the nozzle body is aligned At this time, the sliding groove of the screw cap corresponds to the position of the convex wing of the ejector pin, so that a French air nozzle penetrates into the bundle ring, French air nozzle against the thimble, the thimble convex sliding wing within the chute and into the receiving groove moves compressing the spring to drive the inner cylinder, screw, and the cinch ring with jaws Stepwise moving toward the top end of the nozzle body such that the ring flange of the action ring abuts against the recess of the jaw, and the ring flange abuts the convex portion of the jaw to make the jaw The claw portion is inwardly contracted, thereby pressing the bundle ring, so that the French air nozzle is tightly bundled by the bundle ring to inflate the French air nozzle; thereby facilitating the operation and intuition, and reducing the required components , which makes the manufacturing cost lower and assembly easier, and can improve the clamping force of the American air nozzle and the French air nozzle.

100‧‧‧Rotary jaw type nozzle

10‧‧‧ gas nozzle body

11‧‧‧ 容部

111‧‧ ‧ room

112‧‧‧ external thread

113‧‧‧American symbols

114‧‧‧ French symbols

115‧‧‧ Limit slot

12‧‧‧Connecting Department

121‧‧‧Inflatable Road

20‧‧‧ inner tube

21‧‧‧Axis hole

22‧‧‧ Ring groove

23‧‧‧ external thread

24‧‧‧Limited convex

30‧‧‧Capping

31‧‧‧ head

311‧‧‧Indicating area

32‧‧‧ Body

321‧‧‧ 容容

322‧‧‧

323‧‧ ‧ chute

324‧‧‧ convex ring

40‧‧‧claw

41‧‧‧ Ring Department

411‧‧‧ internal thread

42‧‧‧ claws

421‧‧‧ recess

422‧‧‧ convex

50‧‧‧Bundle

60‧‧‧ thimble

61‧‧‧wings

70‧‧‧ Spring

80‧‧‧ action ring

81‧‧‧ internal thread

82‧‧‧ ring flange

91‧‧‧American gas nozzle

92‧‧‧ French vents

The first figure is an exploded perspective view of a preferred embodiment of the present invention.

The second drawing is a perspective assembled view of the embodiment shown in the first figure.

The third to fifth figures are schematic diagrams of the operation of the American air nozzle inflating the embodiment shown in the first figure.

6 to 8 are schematic views showing the operation of the French air nozzle inflating the embodiment shown in the first figure.

In order to enable the reviewing committee to have a better understanding and recognition of the features and features of the present invention, the following preferred embodiments are illustrated as follows: Referring to the first to eighth figures, a preferred embodiment of the present invention is preferred. The embodiment provides a rotary jaw type air nozzle 100, which mainly includes a nozzle body 10, an inner cylinder 20, a screw cap 30, a jaw 40, a bundle ring 50, a thimble 60, and a spring 70. And an action ring 80, wherein: the first to third figures, the air nozzle body 10 has a receiving portion 11 and a connecting portion 12; the top end of the receiving portion 11 is axially penetrated The outer surface of the bottom end of the accommodating portion 11 has an external thread 112. The top end of the accommodating portion 11 has an American symbol 113 and a French symbol 114. The connecting portion 12 is integrated. It is connected to one side of the accommodating portion 11 and has an inflation passage 121 that communicates the chamber 111 to the outside.

Referring to the first to third figures, the inner cylinder 20 is disposed in the chamber 111 of the nozzle body 10. The inner cylinder 20 is axially inserted through a shaft hole 21, and the shaft hole 21 at one end of the inner cylinder 20 The wall has a ring groove 22, and the other end of the inner tube 20 has an external thread 23 on the outer peripheral surface.

Referring to the first to third figures, the cap 30 has a head 31 at one end and a body 32 at the other end. The head 31 has an indication area 311, and the end edge of the body 32 is directed toward the inner shaft. A plurality of pressure walls 322 are defined on opposite sides of the body edge 32. The other two opposite sides of the body portion 32 have two sliding slots 323. The two sliding slots 323 are located on the second pressure wall 322. The outer peripheral surface of the body portion 32 has a convex ring 324 which is slidably coupled to the annular groove 22 of the inner cylinder 20 so that the body portion 32 is located in the axial hole 21 of the inner cylinder 20. The head 31 is located outside the shaft hole 21, and the cap 30 is rotatably coupled to the inner cylinder 20 to be rotated in situ relative to the inner cylinder 20.

Referring to the first to third figures, the clamping jaw 40 has a ring portion 41 at one end and a plurality of claw portions 42 arranged in an annular shape at the other end. The inner circumference of the ring portion 41 has an internal thread 411. The external threads 20 of the inner cylinder 20 are screwed together, and each of the claw portions 42 has a concave portion 421 on one outer side surface and a convex portion 422 on the outer side surface of the other end portion. The concave portion 421 and the convex portion 422 are connected in a curved line.

Referring to the first to third figures, the collar 50 has elastic deformation characteristics and is placed in the jaw 40.

Referring to the first to third figures, the ejector pin 60 is placed in the shaft hole 21 of the inner cylinder 20, and the ejector pin 60 has two convex wings 61 on the opposite outer side.

Referring to the first to third figures, the spring 70 is placed in the cavity 321 of the cap 30 and abuts against one end of the thimble 60.

Referring to the first to third figures, the action ring 80 has an internal thread 81 on one end inner circumference and a ring flange 82 on the other end inner circumference surface; the internal thread 81 is externally threaded with the nozzle body 10 The ring flange 82 abuts against the outer surface of each of the claw portions 42 of the jaw 40.

Therefore, the above description is a description of each component of the rotary jaw type air nozzle 100 and its assembly manner provided by a preferred embodiment of the present invention, and then its use characteristics are as follows: as shown in the third figure, When an American air nozzle 91 is to be inflated, the cap 30 is first rotated to align the indicator area 311 with the American symbol 113 of the nozzle body 10, at which time the spring force of the spring 70 is the thimble. 60 is pushed down, and when the indication area 311 of the screw cap 30 is aligned with the American symbol 113 of the air nozzle body 10, the pressing wall 322 of the screw cap 30 is pressed against the convex wing 61 of the ejector pin 60, so that At this time, the position of the ejector pin 60 is fixed. Then, the bottom end of the accommodating portion 11 of the nozzle body 10 is moved toward the American air nozzle 91, so that the American air nozzle 91 enters the bundle ring 50 (as shown in the fourth figure), and then continuously The bottom end of the accommodating portion 11 is moved in the direction of the American air nozzle 91, so that the ejector pin 60 is supported by the American air nozzle 91, and the inner cylinder 20, the screw cap 30, the clamping jaw 40 and the bundle ring 50 are driven to the same. The receiving portion 11 of the nozzle body 10 moves in the distal direction, so that the ring flange 82 of the active ring 80 abuts against the recess 421 of the jaw 40, and now the ring flange 82 abuts against the jaw. The convex portion 422 of the 40, the claw portion 42 of the clamping jaw 40 is retracted, thereby pressing the collar 50, so that the American air nozzle 91 is tightly bundled by the collar 50 (as shown in the fifth figure). ), in this way, the American air nozzle 91 can be inflated.

As shown in the sixth figure, when a French air nozzle 92 is to be inflated, the cover 30 is first rotated to align the indication area 311 with the French symbol 114 of the nozzle body 10, at which time the spring The elastic force of 70 still pushes the ejector pin 60 downward, and when the indication area 311 of the screw cap 30 is aligned with the French symbol 114 of the air nozzle body 10, the sliding groove 323 of the screw cap 30 corresponds to the ejector pin 60. The position of the lobe 61 is such that the ejector pin 60 at this time can be moved by an external force. Then, the bottom end of the receiving portion 11 of the nozzle body 10 is moved toward the French air nozzle 92, so that the French air nozzle 92 passes through the inside of the collar 50 and against the thimble 60, so that the The spur pin 61 of the ejector pin 60 slides along the sliding groove 323, so that the ejector pin 60 compresses the spring 70 (as shown in FIG. 7), and continuously presses the bottom end of the accommodating portion 11 toward the French air nozzle 92. Moving in the direction of the ejector pin 60, the inner cylinder 20, the screw cap 30, the jaw 40 and the collar 50 are synchronously moved toward the top end of the accommodating portion 11 of the nozzle body 10, The ring flange 82 of the active ring 80 is abutted against the recess 421 of the jaw 40, and now the ring flange 82 abuts against the convex portion 422 of the jaw 40, so that the jaw 40 The claw portion 42 is inwardly contracted, thereby pressing the bundle ring 50, so that the French air nozzle 92 is tightly bundled by the collar 50 (as shown in FIG. 8), so that the French air nozzle 92 can be used. Inflate.

Therefore, the present invention not only can generally inflate the American air nozzle and the French air nozzle, and has a simple structure to reduce the manufacturing cost and improve the assembly ease. Moreover, since the creation only needs to rotate the screw cap, the inflation of the American air nozzle or the French air nozzle can be adjusted, and the operation mode is quite intuitive, and the convenience in use can be improved. Furthermore, the present invention compresses and tightens the bundle ring with the jaws, and can improve the clamping force on the American air nozzle or the French air nozzle to prevent air leakage during inflation.

In addition, in the above embodiment, the connecting portion 12 of the air nozzle body 10 can be inflated with one breath. A cartridge or an inflation tube is connected to introduce a gas through the inflation passage 121 for inflation.

Next, the inner wall surface of the chamber 111 of the air nozzle body 10 has an axially extending limiting slot 115, and the outer wall surface of the inner cylinder 20 has an axially extending limiting protrusion 24, the inner cylinder When the 20 is placed in the chamber 111, the limiting protrusion 24 slides into the limiting slot 115 to prevent the inner cylinder 20 from rotating.

The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All of the related art in the art will be equally changed according to the present invention. The scope of coverage.

100‧‧‧Rotary jaw type nozzle

10‧‧‧ gas nozzle body

11‧‧‧ 容部

111‧‧ ‧ room

112‧‧‧ external thread

113‧‧‧American symbols

114‧‧‧ French symbols

115‧‧‧ Limit slot

12‧‧‧Connecting Department

121‧‧‧Inflatable Road

20‧‧‧ inner tube

21‧‧‧Axis hole

22‧‧‧ Ring groove

23‧‧‧ external thread

24‧‧‧Limited convex

30‧‧‧Capping

31‧‧‧ head

311‧‧‧Indicating area

32‧‧‧ Body

321‧‧‧ 容容

322‧‧‧

323‧‧ ‧ chute

324‧‧‧ convex ring

40‧‧‧claw

41‧‧‧ Ring Department

411‧‧‧ internal thread

42‧‧‧ claws

421‧‧‧ recess

422‧‧‧ convex

50‧‧‧Bundle

60‧‧‧ thimble

61‧‧‧wings

70‧‧‧ Spring

80‧‧‧ action ring

81‧‧‧ internal thread

82‧‧‧ ring flange

Claims (10)

A rotary jaw type gas nozzle mainly comprises: a gas nozzle body having a cavity through which the top and bottom penetrate; an inner cylinder disposed in the cavity of the gas nozzle body and reciprocating along the chamber The inner cylinder is axially inserted through a shaft hole; a screw cap is coupled to one end of the inner cylinder and located at a top end of the air nozzle body, and the other end of the screw cap has a groove extending inwardly. At least one pressure wall and at least one sliding groove on the groove; a clamping jaw having a ring portion at one end and a plurality of claw portions arranged in an annular shape at the other end, the ring portion being coupled to the other end of the inner tube, the claw portions being external The side has a concave portion and a convex portion connected to the concave portion; a bundle of rings is elastically deformed and is placed in the jaw; a thimble is placed in the shaft hole of the inner cylinder, the thimble has at least a slanting wing; a spring is disposed in the cavity of the screw cap and abuts against one end of the ejector pin; an active ring is coupled to the bottom end of the air nozzle body, and the inner circumferential surface of the action ring has a ring a flange that abuts against an outer side of the claw of the jaw. The rotary jaw type air nozzle according to claim 1, wherein the air nozzle body has a receiving portion and a connecting portion; the chamber axially penetrates the top end of the receiving portion, the capacity The outer peripheral surface of the bottom portion has an external thread, and the top end of the receiving portion has an American symbol and a French symbol. The connecting portion is connected to one side of the receiving portion and has a connecting chamber to The inner circumference of the action ring has an internal thread, and the internal thread is screwed into the outer thread of the air nozzle body; the screw cap has an indication area at one end. The rotary jaw type nozzle according to claim 2, wherein the connecting portion of the nozzle body is connected to an inflator. The rotary jaw type nozzle according to claim 2, wherein the connecting portion of the nozzle body is connected to an inflation tube. The rotary jaw type nozzle according to claim 2, wherein when the cover is rotated until the indication area is aligned with the American symbol of the nozzle body, the spring is pushed down by the spring, and The pressure wall of the screw cap is pressed against the convex wing of the thimble, so that the thimble is fixed for an American air nozzle to penetrate into the bundle ring, and the American air nozzle is driven by the ejector pin to drive the ejector pin The inner cylinder, the screw cap, the clamping jaw and the collar are synchronously moved toward the top end of the nozzle body such that the ring flange of the action ring abuts against the concave portion of the jaw, and the ring flange and the jaw are replaced by the ring The convex portion abuts, and the claw portion of the jaw is retracted, thereby pressing the loop, so that the American air nozzle is tightly bundled by the loop to perform inflation of the American nozzle. The rotating jaw type nozzle according to claim 2, wherein when the cap is rotated until the indication area is aligned with the French symbol of the nozzle body, the sliding groove of the cap corresponds to the a fulcrum of the thimble is inserted into the rim of the ejector, and the ejector is held by the ejector, so that the spur of the ejector slides in the chute and goes to the sump The inner spring is compressed to drive the inner cylinder, the screw cap, the clamping jaw and the collar to move in the direction of the top end of the nozzle body, so that the ring flange of the action ring is abutted against the concave portion of the jaw. By abutting the ring flange with the convex portion of the jaw, the claw portion of the jaw is retracted, thereby pressing the collar, so that the French air nozzle is tightly bundled by the collar to perform Inflate the French nozzle. The rotary jaw type air nozzle according to claim 1, wherein the inner tube has a ring groove on the wall surface of the shaft hole, and the outer circumference of the screw cover has a convex ring, the convex ring and the inner tube The ring groove is slid so that the cap can be rotated in situ relative to the inner tube. The rotary jaw type nozzle according to claim 1, wherein the cap has a head at one end and a body at the other end, the indicator area is located on the head, the pocket is The end edge of the body is axially extended inwardly, and the two pressure walls are located on opposite sides of the end edge of the body, and the two sliding grooves are located on opposite sides of the edge of the body, and The two sliding slots are located between the two side edges of the two pressure walls, and the outer peripheral surface of the body has a convex ring, and the convex ring is slidably connected with the annular groove of the inner cylinder, so that the body is located in the inner cylinder The shaft hole is located outside the shaft hole, and the screw cap is rotatable in situ relative to the inner cylinder. The rotary jaw type nozzle according to claim 1, wherein the inner cylinder has an external thread on an outer peripheral surface; the inner circumference of the ring portion of the jaw has an internal thread and is external to the inner cylinder Screws are bolted together. The rotary jaw type air nozzle according to claim 1, wherein the inner wall surface of the air nozzle body has an axially extending limiting groove, and the outer tube side wall surface has an axial extension. The limiting protrusion is slid into the limiting slot to prevent the inner cylinder from rotating.