TWI803386B - Inflatable nozzle with double-layer gripper - Google Patents

Abstract

The present invention provides an inflatable nozzle with double-layer clamping jaws, which includes: at least one valve plug is provided with a tightening hole, each of the tightening holes can be connected with an air nozzle; at least one clamping unit is composed of an inner jaw part and an outer claw part; the clamping unit is arranged on the outside of each valve plug, each of the inner claws has a chamber for each valve plug to be forced into and fixed, and one end is provided with several clamping claws along the axial direction. The force produces a radial position change that can squeeze the valve plug and the tightening hole; each of the outer claws is composed of several claws, and the claws are arranged at intervals on the outer circumference of the inner claw; The jaws of each outer jaw are provided with a pressing area at one end, and the pressing area will be compressed to produce a radially inward position change, so that the pressing area can press the jaws of the inner jaw And the tightening hole of the valve plug, so that the valve plug can strengthen the tightening effect.

Description

Inflatable nozzle with double-layer gripper

The present invention is related to an inflatable mouthpiece, in detail, it refers to an inflatable mouthpiece capable of forming double-layer clamping jaws with double pressing effect.

The M485834 new patent in my country developed by the inventor provides a direct pressure inflation joint, which can be applied to a single or two tire valves of different specifications. A valve plug is arranged in the valve hole of the body of the tuyere head, and the valve plug can be switched between a first position and a second position; a first nozzle and a second nozzle are respectively installed on the valve The two ends of the plug are matched with tire air nozzles of two different specifications. The valve plug is equipped with a plurality of first jaws and second jaws, so that the first jaws are arranged alternately with the first bundle of grooves, so as to define a valve hole that is coaxial with the valve hole and can be retracted radially. The first beam hole of the beam is used for the coaxial insertion and assembly of the first nozzle. As for the second jaws, the second beam groove is alternately arranged to define the coaxial configuration with the valve hole. And the second beam hole that can be radially converged, the second beam hole is for the coaxial insertion and assembly of the second nozzle; when the valve plug is in the first position, the valve hole can release the second jaw and press the first clamp Claws, prompting the first beam hole to automatically radially clamp the first nozzle, and make the first nozzle to be inflated; however, when the valve plug is in the second position, the valve hole releases the first clamping claw and presses the first nozzle. The two clamping claws are used to make the second beam hole radially clamp the second mouthpiece automatically and inflate the second mouthpiece.

Although the above-mentioned prior art can utilize the compressing effect of the first jaw and the second jaw, the first mouthpiece and the second mouthpiece can be compressed by force, thereby forming a more airtight effect. However, the clamping range of the first jaw and the second jaw is limited, so that the pressing effect on the first mouthpiece and the second mouthpiece is limited, and a good airtight effect cannot be achieved.

The purpose of the present invention is to provide an inflatable nozzle, which can produce a better airtight effect during the inflating process of the gas nozzle through double clamping force.

In order to achieve the above purpose, the present invention provides an inflatable nozzle with double-layer jaws, which includes: a main body is provided with an air chamber, and an air inlet passage is provided on the side of the main body to connect with the air chamber; The connecting seat is slidingly arranged in the air chamber, and can be displaced in the axial direction of the air chamber; the connecting seat is provided with at least one joint and at least one air guide port; each of the air guide ports is selectively connected to the air intake passage , each of the air guide ports is connected with each of the joint ports; at least one valve plug is assembled with each of the joint ports, and each of the valve plugs is provided with a tightening hole, and each of the tightening holes is connected with each of the joint ports pass; at least one clamping unit is composed of an inner claw and an outer claw; each of the inner claws has a chamber for each of the valve plugs to be forced into and fixed, and one end of each of the inner claws is close to the connecting seat, The end away from the connecting seat is provided with several long slots in the axial direction; a clamping claw is formed between the long slots; the clamping claws can be forced to produce a radial position change and can squeeze the valve plug and the tightening hole ; Each of the outer claws is composed of several claws, and the claws are arranged at intervals on the outer circumference of the inner claw; each of the claws of the outer claws is provided with a tight area at one end; When the outer claw moves toward the air chamber of the main body, the main body will cause a radial inward position change of the pressing area, so that the pressing area can press the clamping jaw of the inner jaw and the valve plug The tight hole.

In this way, each of the valve plugs will be acted by the clamping unit, and when the valve plug moves into the air chamber of the body, the body will force the pressing area of the outer claw to produce a radially inward position change , when the inner and outer claws move towards the valve plug at the same time, a double-layer tightening effect can be formed, and the tightening hole of the valve plug can be tightened, so that the inserted air nozzle can form a good airtight effect.

Preferably, a spacer bar protrudes from the outside of the jaws of each inner claw portion along the axial direction, and the claw pieces of each outer claw portion are arranged between the spacer bars.

Preferably, the thickness of the spacer is about the same as the claws; when the inner claw moves toward the air chamber of the body, the body will cause a radially inward position change of the spacer.

Preferably, the end of the jaws of each of the inner jaws is provided with an inner clamping portion radially inward, and when the clamping jaws change radially inward, the inner clamping portions will be pressed against each of the valve plugs. The axes of the holes are concentrated so that the inner clamping portion can be buckled and fixed to the air nozzle in the tightening hole when inflated.

Preferably, the claws of each of the outer claws are provided with an outer clamping portion radially inward at one end of the pressing area, and when the claws change radially inward, the outer clamping The parts will be concentrated to the axis of each tightening hole of the valve plug, so that the outer clamping part can be buckled and fixed to the air nozzle in the tightening hole when inflated.

The inflatable structure of the double-layer jaws of the present invention. When each of the valve plugs is connected by the air nozzle and pushed into the air chamber of the main body, a radial inward position change will be formed when the pressing area of the claw pieces of the outer claw is close to the main body, so that the outer claw part and the inner claw part can form a pressing action on the valve plug at the same time, so that the valve plug and its central pressing hole can produce a good squeezing and pressing effect, so that the gas set in the pressing hole The mouth can be tightly clamped to produce a good airtight effect.

Please refer to Fig. 1 to Fig. 4, the present invention provides an inflatable nozzle, which includes:

A body 10 is formed into a T-shaped structure, and one side is provided with an air chamber 11, and the body 10 is provided with an air inlet channel 12 on the side of the air chamber 11, and the air inlet channel 12 is provided with an air inlet hole 121 It communicates with the air chamber 11; the ends of both sides of the air chamber 11 are respectively screwed with a first cover 13 and a second cover 14, and the first cover 13 and the second cover 14 are respectively protruded. a first ring contact portion 131 and a second ring contact portion 141;

A connection seat 20 is slidingly arranged in the air chamber 11, and can be displaced in the axial direction of the air chamber 11; the connection seat 20 is provided with a first joint 21, a second joint 22, a first guide Air port 23 and a second air guide port 24; the first air guide port 23 and the second air guide port 24 are arranged at intervals on the side of the connection seat 20, and the two are not connected to each other. When sliding in the chamber 11, the air intake channel 12 can be selectively connected to the first air guide port 23 or the second air guide port 24; the first air guide port 23 communicates with the first joint port 21, and the second air guide port 23 The air guide port 24 communicates with the second joint port 22; the end of the first joint port 21 is provided with a first bump 211, and the first joint port 21 is suitable for the specifications of American air nozzles; the second joint port 22 A second protruding block 221 is also provided at the end, and the second joint port 22 is suitable for the specifications of the French air nozzle; therefore, when the connecting seat 20 is pushed to the position, the first air guide port 23 communicates with the air intake passage 12 , the first joint port 21 can inflate a American air nozzle, and when the connecting seat 20 is pushed to the position so that the second air guide port 24 communicates with the intake passage 12, the second joint port 22 can be used for a The French air nozzle is inflated, but the present invention is not limited to the use of American or French air nozzles; the connecting seat 20 is provided with several first joints 21 and 22 at intervals on the side of the second joint. The connecting groove 25 and the second connecting groove 26 .

A first valve plug 30 is made of soft material that can be extruded, and the center of the first valve plug 30 is provided with a first tightening hole 31, and the first valve plug 30 is connected to the first tightening hole. One side of the hole 31 is concavely provided with a first groove 32 to be combined with the first protrusion 211 of the first joint 21, and the first pressing hole 31 will communicate with the first joint 21; In this embodiment, a tightening hole 31 is relatively set to a hole size conforming to an American air nozzle.

A second valve plug 40 is made of soft material that can be extruded, and the center of the second valve plug 40 is provided with a second tightening hole 41, and the second valve plug 40 is connected to the second tightening hole. One side of the hole 41 is concavely provided with a second groove 42 to be assembled with the second protrusion 221 of the second joint 22, and the second pressing hole 41 will communicate with the second joint 22; In this embodiment, the two tightening holes 41 are relatively set to a diameter that conforms to the size of the French valve. In order to increase the sealing effect, a ring protrusion 411 is also provided in the second tightening hole 41 .

A first clamping unit 5 is composed of a first inner claw 50 and a first outer claw 60; the first clamping unit 5 is arranged on the air chamber 11 of the body 10 and the first valve Between the plugs 30, the outer circumference of the first clamping unit 5 is in contact with the first ring contact portion 131, and can change the radial position as the position of the connecting seat 20 changes. The first outer The strength of the claw portion 60 is greater than that of the first inner claw portion 50, the first outer claw portion 60 can be made of metal, and the first inner claw portion 50 can be made of plastic material, the first outer claw portion 60 The hardness is greater than the hardness of the first inner claw portion 50, the first The strength of an outer claw portion 60 can reduce the amount of deformation and force the first inner claw portion 50 to produce a larger deformation effect after being pressed; the first inner claw portion 50 has a first chamber 51 in the center for the first The valve plug 30 is forced into and fixed so that the first valve plug 30 can be installed between the connecting seat 20 and the first inner claw 50, and the end away from the connecting seat 20 is provided with several long grooves 52 along the axial direction; A first clamping jaw 53 is respectively formed between the equal long grooves 52; the first clamping jaws 53 can be forced to produce a radial position change and can squeeze the first valve plug 30 and the first tightening hole 31, The position of the first valve plug 30, especially the first pressing hole 31, can form a squeezing effect concentrated toward the axis; the ends of the first clamping jaws 53 protrude axially inwards with a first internal clamp parts 531, the first inner clamping parts 531 are arranged on the outside of the first valve plug 30 and change radially with the first jaws 53, when the first jaws 53 are squeezed When facing inward, the first inner locking parts 531 will also produce a radially inward position change, so that the first inner locking parts 531 will move to the axial center position of the first pressing hole 31, Because the first inner clamping portions 531 are arranged at the ends of the first clamping jaws 53, the distance of the radial change is the largest, so that the first inner clamping portions 531 do not go deep into the first clamping position at the original position. The inside of the hole 31 will move into the first tightening hole 31 during radial deformation; the outer center of the first jaws 53 is respectively protruded with a first spacer bar 532 along the axial direction, and the first spacers The strips 532 are in contact with the first annulus 131 of the main body 10, and when the relative position of the first clamping unit 5 on the main body 10 changes, the first spacer strips 532 can move along with the position change. Drive the first jaws 53 to change the radial position.

The first outer claw portion 60 is composed of several first claw pieces 61, and the first claw pieces 61 are arranged at intervals on the outer peripheral side of the first inner claw portion 50, that is, the first spacer bars 532 Between them, the thickness of the first claws 61 is equivalent to the thickness of the first spacers 532, so that the first ring contact portion 131 can be in contact with the first spacers 532 and the first claws at the same time. 61; the outer sides of the first claw pieces 61 are sequentially provided with a first tight area 611, a first recessed area 612 and a first stop area 613, and the first tight area 611 is a gradually rising The arc surface is arranged on one side of the first recessed area 612, and the first stop area 613 is arranged in the air chamber 11 of the body 10, and is stopped by the first ring contact portion 131, the first recessed The area 612 is arranged between the first tightening area 611 and the first stop area 613, and the first recessed area 612 is the thinnest position of the overall radial thickness of the first clamping unit 5; when the first When the first recessed area 612 of the clamping unit 5 is located at the position of the first ring contact portion 131, the first clamping unit 5 will not exert force on the first valve plug 30, when the first clamping unit 5 When moving into the main body 10, the first ring contact portion 131 will press the first pressing area 611 and the first spacer bar 532, so that the first clamping jaw 53 of the first inner jaw portion 50 is aligned with the first clamping jaw 53. The first claw pieces 61 of the outer claw portion 60 will displace radially inward, and the first claw pieces 61 and the first spacers 532 will push the first clamping jaws 53 to radially move inwardly and squeeze The first valve plug 30 and the first tightening hole 31 enable the first valve plug 30 to be fully squeezed to form a good airtight effect; the first claw pieces 61 are close to the first valve plug The end of a pressing zone 611 is radially inwardly provided with a first outer clamping portion 614, and the first outer clamping portion 614 is arranged on the outside of the first inner clamping portion 531, and will also follow the first claws. Sheet 61 is formed with a radial position of the When the first recessed area 612 of the first claw pieces 61 is located at the position of the first ring contact portion 131 of the first sleeve cover 13, the first outer clamping portions 614 will not protrude from the first In the tightening hole 31; when the first tightening regions 611 abut against the first ring contact portion 131 of the first sleeve cover 13, the first outer clamping portion 614 will also generate a radial movement toward the center. displacement, so that the first outer clamping portion 614 protrudes from the first tightening hole 31; in addition, the first claw pieces 61 are provided with a first Assembly parts 615, the first assembly parts 615 are engaged in the first assembly groove 25 of the connection seat 20, so that the first claws 61 can be combined with the connection seat 20 and can move freely .

A second clamping unit 7 is composed of a second inner claw 70 and a second outer claw 80; the second clamping unit 7 is arranged on the air chamber 11 of the body 10 and the second valve Between the plugs 40, the outer circumference of the second clamping unit 7 is in contact with the second ring contact portion 141, and can change the radial position as the position of the connecting seat 20 changes. The first outer The strength of the claw portion 80 is greater than that of the second inner claw portion 70, the second outer claw portion 80 can be made of metal, and the second inner claw portion 70 can be made of plastic material, the second outer claw portion 80 The hardness is greater than the hardness of the second inner claw portion 70, the strength of the second outer claw portion 80 can reduce the amount of deformation and force the second inner claw portion 70 to produce a larger deformation effect after being pressed; There is a second chamber 71 in the center of the inner claw part 70 for the second valve plug 40 to be forced into and fixed, so that the second valve plug 40 can be installed between the connecting seat 20 and the second inner claw part 70, away from the One end of the connecting base 20 is axially provided with several long grooves 72; a second jaw 73 is formed between the equal length grooves 72; the second jaws 73 can be forced to generate a The radial position changes to squeeze the second valve plug 40 and the second tightening hole 41, so that the second valve plug 40, especially the position of the second tightening hole 41, can form an extrusion concentrated toward the axis. Effect: The ends of the second jaws 73 protrude axially inwards with a second inner locking portion 731, and the second inner locking portions 731 are arranged on the outside of the second valve plug 40 and follow the second inner locking portion 731. The clamping jaws 73 produce a radial position change, and when the second clamping jaws 73 are squeezed radially inward, the second inner clamping portions 731 also produce a radially inward position change, so that The second inner clamping parts 731 will move towards the axis position of the second tightening hole 41, because the second inner clamping parts 731 are arranged at the ends of the second clamping jaws 73, so the radially changing distance maximum, so that the second inner clamping portion 731 does not go deep into the inside of the second pressing hole 41 when it is in its original position, but it will move in the second pressing hole 41 during radial deformation; the second clips A second spacer bar 732 protrudes from the center of the outer side of the claw 73 along the axial direction. When the relative position on the main body 10 changes, the second spacing strips 732 can drive the second clamping jaws 73 to change the radial position along with the position change.

The second outer claw portion 80 is composed of several second claw pieces 81, and the second claw pieces 81 are arranged at intervals on the outer peripheral side of the second inner claw portion 70, that is, the second spacer bars 732 Between them, the thickness of the second claws 81 is equivalent to the thickness of the second spacers 732, so that the second ring contact portion 141 can be in contact with the second spacers 732 and the second claws at the same time. 81; the outer sides of the second pawl pieces 81 are provided with a second pressing area 811, a second recessed area 812 and a second blocking area 813 in sequence, and the second pressing area 811 is a gradually rising The arc surface is set on one side of the second recessed area 812, and the first The second blocking area 813 is set in the air chamber 11 of the body 10 and is stopped by the second ring contact portion 141, and the second recessed area 812 is set in the second pressing area 811 and the second pressing area 811. Between the stopper areas 813, the second recessed area 812 is the position where the overall radial thickness of the second clamping unit 7 is the thinnest; when the second recessed area 812 of the second clamping unit 7 is located on the second ring When the abutting portion 141 is in position, the second clamping unit 7 will not exert force on the second valve plug 40, and when the second clamping unit 7 moves into the body 10, the second ring abutting portion 141 will Pressing the second pressing area 811 and the second spacer bar 732 causes the second jaw 73 of the second inner jaw 70 and the second jaw 81 of the second outer jaw 80 to displace radially inward , and the second claws 81 and the second spacers 732 will push the second clamping claws 73 to move radially inwards to squeeze the second valve plug 40 and the second tightening hole 41, so that The second valve plug 40 can be fully squeezed to form a good airtight effect; the second claws 81 are provided with a second radially inward near the end of the second tight area 811. The outer clamping part 814, the second outer clamping part 814 is arranged on the outside of the second inner clamping part 731, and also forms a radial position movement along with the second claw pieces 81, when the second claws When the second recessed area 812 of the sheet 81 is at the position of the second ring contact portion 141 of the second sleeve cover 14, the second outer clamping portions 814 will not protrude from the second tightening hole 41; When the second pressing area 811 abuts against the second ring contact portion 141 of the second sleeve cover 14, the second outer clamping portion 814 will also produce a radial displacement towards the center, so that the second outer clamping portion 814 will part 814 protrudes from the second tightening hole 41; in addition, the second claw pieces 81 are provided with a second joint part 815 radially inwardly near the end of the second blocking area 813, and the second claw pieces 81 The second assembly part 815 is clamped on the second group of the connecting base 20 The connecting groove 26 allows the second claw pieces 81 to be combined with the connecting base 20 and move freely.

Please refer to Figures 5 and 6, when the user wants to inflate, he will first match the applicable valve plug according to the required valve. If the American valve is used, he will match the first valve plug 30 For use, the end of the Schrader air nozzle is plugged into the first tightening hole 31 of the first valve plug 30. At this time, the first clamping unit 5 is located at the first clamping unit 5 with the first recessed area 612. At the position of the ring contact portion 131, the first valve plug 30 and the first tightening hole 31 are not squeezed, the American-style air nozzle can be inserted into the first tightening hole 31 and pushed toward the direction of the air chamber 11, when the When the American-style air nozzle touches the first joint 21 of the connecting seat 20, the American-style air nozzle is ready to fill in the air. When the American-style air nozzle pushes the connecting seat 20, the first clamping unit 5 can be moved toward the body 10 into the air chamber 11, and the second clamping unit 7 will be relatively pushed away from the direction of the air chamber 11, when the first clamping unit 5 enters the air chamber 11, the first outer jaw The contact positions of the first claw pieces 61 of the part 60 and the first ring contact portion 131 will gradually shift from the first recessed areas 612 to the first pressing areas 611, because the first pressing areas The tightening area 611 presents an ascending arc, so when the first ring contact portion 131 is in contact with the first pressing areas 611, the first ring contact portion 131 will drive the first claw pieces 61 and the second contact portions. A spacer bar 532 is displaced radially inward, so that the first clamping jaws 53 of the first inner jaw portion 50 are gradually radially moved by the first claw pieces 61 and the first spacer bars 532. Inward displacement, the radial displacement of the first jaws 53 will make the first chamber 51 gradually shrink, and at the same time the first valve plug 30 arranged in the first chamber 51 will also be squeezed, so that This first pressing hole 31 also can be squeezed, and like this, inserts in this first The American-style air nozzle in a tightening hole 31 will also be squeezed and tightly combined with the first tightening hole 31, so that the periphery of the American-style air nozzle is tightly covered to produce a good airtight effect, and, Because the first clamping area 611 is a rising arc surface, when the first clamping unit 5 moves into the air chamber 11, the diameter of the first outer claw portion 60 and the first inner claw portion 50 The larger the displacement distance, the greater the extrusion effect on the first valve plug 30 and the airtight effect will also increase. When the first clamping unit 5 is pushed to the thickest position of the first pressing area 611 (the highest point of the arc surface) or pushed to the position where the second stopper area 813 of the second clamping unit 7 contacts the second ring contact portion 141, the first clamping unit 5 cannot continue to push. At the same time, when the first jaws 53 of the first inner jaw 50 and the first jaw 61 of the first outer jaw 60 are performing diameter When moving in the direction, the first inner clamping parts 531 and the first outer clamping parts 614 at the ends will approach the first tightening hole 31, and will be clamped and embedded in the outer circumference of the American air nozzle, increasing The overall holding effect; at this time, the gas in the air intake passage 12 will enter the air chamber 11 through the air intake hole 121, and be transported to the position of the first joint port 21 by the first air guide port 23, so that it can Pour gas into the American-style air nozzle. After the inflation is completed, the second clamping unit 7 can push the connecting seat 20 to move towards the first clamping unit 5. At this time, the first clamping areas 611 will gradually move away from the first ring contact portion 131, that is, the contact position of the first pressing areas 611 will gradually move to the lower position of the arc surface, so that the first claws of the first outer claws 60 The sheet 61 and the first jaws 53 will form a radially outward displacement action, so that the first chamber 51 in the first inner jaw portion 50 will gradually expand, and the first chamber 51 will be disposed in the first chamber 51. The first valve plug 30 will also be released thereby, so that the first pressing hole 31 is no longer squeezed The Schrader valve, meanwhile, because the first jaws 53 and the first jaws 61 move radially outward, so the first inner clamping portions 531 and the first outer clamping portions 614 will also radially Move outward without the American-style air nozzle being stuck and embedded, and the American-style air nozzle can be pulled out. When the first stop areas 613 are blocked on the inner side of the first ring contact portion 131, the user will Can't continue to pull outward, but can form the effect of certain point, the user can confirm that has reached the end, and will not continue to push again.

Please refer to Figures 7 and 8, when the user wants to perform French inflation action, it will be used with the second valve plug 40, and the end of the French air nozzle will be pushed by the second valve plug 40. The tightening hole 41 is plugged in. At this time, the second clamping unit 7 is located at the position of the second ring contact portion 141 with the second recessed area 812, and the second valve plug 40 and the second tightening hole 41 are not After being squeezed, the French air nozzle can be inserted into the second pressing hole 41 and pushed toward the air chamber 11. When the French air nozzle touches the second joint port 22 of the connecting seat 20, the French air nozzle is Air can be poured in, and at the same time, the ring convex portion 411 of the second valve plug 40 can be ring-locked on the concave portion of the French air nozzle to form an airtight fixation. When the French air nozzle pushes the connecting seat 20, the second The clamping unit 7 can enter into the air chamber 11 of the body 10, and the first clamping unit 5 will be relatively pushed away from the air chamber 11, when the second clamping unit 7 enters the air chamber 11 , the position where the second claw pieces 81 of the second outer claw portion 80 contact the second ring contact portion 141 will gradually shift from the second recessed areas 812 to the second pressing areas 811 , because the second pressing areas 811 present a rising arc, so when the second ring contacting part 141 contacts with the second pressing areas 811, the second ring contacting part 141 will drive the second ring contacting part 141 The claw pieces 81 and the second spacers 732 are displaced radially inward, so that the claws of the second inner claw portion 70 The second jaws 73 will be gradually displaced radially inwards by the action of the second jaws 81 and the second spacers 732, and the radial displacement of the second jaws 73 will make the second container The chamber 71 shrinks gradually, and the second valve plug 40 arranged in the second chamber 71 will also be squeezed accordingly, so that the second pressing hole 41 and the inner ring protrusion 411 will also be squeezed, so As a result, the French air nozzle inserted in the second tightening hole 41 will also be squeezed and tightly combined with the second tightening hole 41 and the ring protrusion 411, so that the periphery of the French air nozzle is compressed. Tight wrapping produces a good airtight effect, and, because the second clamping area 811 is a rising arc, so when the second clamping unit 7 moves into the air chamber 11, the second outer claw The greater the radial displacement distance between the portion 80 and the second inner claw portion 70, the greater the extrusion effect on the second valve plug 40 and the airtight effect will also increase. When the second clamping unit 7 pushes Before reaching the thickest position (the highest point of the arc surface) of the second pressing area 811 or pushing to the position where the first stop area 613 of the first clamping unit 5 contacts the first ring contact portion 131 , the The second clamping unit 7 cannot continue to push, and the airtight effect of the second valve plug 40 is the best at this moment; When the second claw piece 81 of the claw part 80 is radially displaced, the second inner clamping parts 731 and the second outer clamping part 814 at the end will approach the second tightening hole 41, and will lock Embedded in the outer circumference of the French air nozzle to increase the overall holding effect; at this time, the gas in the air intake channel 12 will enter the air chamber 11 through the air intake hole 121, and then pass through the second air guide port 24 Transfer to the position of the second joint 22, and the gas can be poured into the French gas nozzle. After the inflation is completed; the connecting seat 20 can be pushed by the first clamping unit 5 to the direction of the second clamping unit 7 move, at this time, the second tight areas 811 will gradually move away from the second ring to reach part 141, that is, the contact position of the second pressing areas 811 will gradually move to the lower position of the arc surface, so that the second claw pieces 81 and the second jaws of the second outer claw parts 80 73 will form a radially outward displacement action, so that the second chamber 71 in the second inner claw portion 70 will gradually expand, and the second valve plug 40 disposed in the second chamber 71 will also Thereby release, make this second pressing hole 41 no longer squeeze this French type air nozzle, simultaneously, because these second clamping jaws 73 and these second claw pieces 81 move radially outwards, so these second inner The clamping part 731 and the second outer clamping parts 814 will also move radially outwards so that the French valve is no longer clamped, and the French valve can be pulled out. When the second stop areas 813 stop When it is inside the second ring contact portion 141, the user will not be able to continue to pull outward, but a certain effect can be formed, and the user can confirm that the end has been reached, and will not continue to push.

The above-mentioned embodiment is suitable for the use of double-mouth type inflatable mouthpieces. The present invention can also be applied to single-mouth type inflatable mouthpieces. Or two different structures of double-valve nozzles, the present invention can also be applied to the inflation of single-mouth type like these structures.

The inflatable nozzle with double-layer jaws provided by the present invention can form a double clamping effect through the clamping unit having inner jaws and outer jaws, compared to the conventional force applied by only a single jaw Insufficient airtight effect is not good, the clamping unit of the present invention can increase the clamping force and the clamping effect of the whole circumference through the inner claw part and the outer claw part, so that the valve plug can be more tightly and the force is more uniform The tightness of the air nozzle set in the tightness hole forms a good airtight effect, and can be reduced through the double clamping effect. The size of the low applied force allows the user to use a smaller operating force to produce a more airtight effect.

The above disclosed embodiments are only to illustrate the technical features of the present invention and not to limit them. For example, any structural design equivalent to the present invention should fall within the scope of the present invention. The inflatable mouthpiece of the double-layer jaws provided by the present invention is the first structure in this technical field, and has progressive effects, and the application is filed according to the law.

10: Ontology

11: air chamber

12: Intake channel

121: air intake hole

13: First set of covers

131: Arrival of the first ring

14: Second set of covers

141: Arrival of the second ring

20: Connecting seat

21: First joint

211: the first bump

22:Second joint

221: Second bump

23: The first air guide port

24: The second air guide port

25: The first set of slots

26: The first set of slots

30: The first valve plug

31: The first tight hole

32: the first groove

40: Second valve plug

41: Second tight hole

411: ring convex part

42: Second groove

5: The first clamping unit

50: the first inner claw

51: The first chamber

52: long slot

53: The first jaw

531: The first inner card department

532: The first spacer

60: The first outer claw

61: The first claw piece

611: The first emergency area

612: the first recessed area

613: The first stop area

614: The first wild card department

615: The first joint

7: Second clamping unit

70: Second inner claw

71: Second chamber

72: long slot

73:Second jaw

731: The second inner card part

732: Second spacer

80: Second outer claw

81: Second claw piece

811: The second emergency area

812: Second depressed area

813:Second stop area

814:Second wild card department

815: The second joint

In order to further understand the purpose, characteristics and achieved effects of the present invention, a preferred embodiment of the present invention will be cited below, and will be described in detail with the accompanying drawings: Fig. 1 is a perspective view of an inflatable mouthpiece according to a preferred embodiment of the present invention. Fig. 2 is an exploded perspective view of an inflatable mouthpiece according to a preferred embodiment of the present invention. Fig. 3 is a sectional view of the line 3-3 of an inflatable mouthpiece according to a preferred embodiment of the present invention. Fig. 4 is a top view of an inflatable nozzle according to a preferred embodiment of the present invention, and a schematic view of the first clamping unit in an untightened state. Fig. 5 is a schematic diagram of an inflatable nozzle connected to an American-style gas nozzle without being pushed in or pulled out according to a preferred embodiment of the present invention. Fig. 6 is a schematic diagram of a push-in and fixed state of an inflatable nozzle connected to an American-style gas nozzle according to a preferred embodiment of the present invention. Fig. 7 is a schematic view of an inflatable nozzle connected to a French-style gas nozzle without being pushed in or pulled out according to a preferred embodiment of the present invention. Fig. 8 is a schematic diagram of a push-in and fixed state of an inflatable nozzle connected to a French-style gas nozzle according to a preferred embodiment of the present invention.

10: Ontology

11: air chamber

12: Intake channel

13: First set of covers

131: Arrival of the first ring

14: Second set of covers

141: Arrival of the second ring

20: Connecting seat

21: First joint

211: the first bump

22:Second joint

221: Second bump

25: The first set of slots

26: The second set of slots

30: The first valve plug

31: The first tight hole

32: the first groove

40: Second valve plug

41: Second tight hole

42: Second groove

5: The first clamping unit

50: the first inner claw

51: The first chamber

52: long slot

53: The first jaw

531: The first inner card department

532: The first spacer

60: The first outer claw

61: The first claw piece

611: The first emergency area

612: the first recessed area

613: The first stop area

614: The first wild card department

615: The first joint

7: Second clamping unit

70: Second inner claw

71: Second chamber

72: long slot

73:Second jaw

731: The second inner card part

732: Second spacer

80: Second outer claw

81: Second claw piece

811: The second emergency area

812: Second depressed area

813:Second stop zone

814:Second wild card department

815: The second joint

Claims (11)

An inflatable mouthpiece with double-layer jaws, comprising: a body with an air chamber through it, and an air inlet channel connected to the air chamber on the side of the body; a connecting seat is slidably installed in the air chamber, And can be displaced in the axial direction of the air chamber; the connecting seat is provided with at least one joint port and at least one air guide port; each of the air guide ports is selectively connected to the air intake channel, and each of the air guide ports is connected with each of the air guide ports At least one valve plug is assembled with each of the joint ports, each of the valve plugs is provided with a tightening hole, and each of the tightening holes communicates with each of the joint ports; at least one clamping unit is connected with Consists of an inner claw and an outer claw; each inner claw has a chamber for each valve plug to be forced into and fixed, one end of each inner claw is close to the connecting seat, and the end away from the connecting seat is along the axial direction There are several long grooves; a jaw is formed between the long grooves; the jaws can be forced to produce a radial position change and can squeeze the valve plug and the tightening hole; each of the outer claws is composed of several These claws are arranged at intervals on the outer circumference of the inner claw; each of the claws of the outer claws is provided with a tight area at one end; when the air from the outer claws to the body When moving in the direction of the chamber, the body will cause a radially inward position change of the tightening area, so that the tightening area can press the clamping claw of the inner claw part and the tightening hole of the valve plug. The inflatable mouthpiece as described in claim 1, wherein: the outer side of the jaws of each inner jaw part is provided with a spacer along the axial direction, and the claw pieces of each outer jaw part are arranged at the spacers between the bars. The inflatable nozzle as described in claim 2, wherein: the thickness cover of the spacer between the jaws of each inner jaw is equivalent to the claw pieces of the outer jaws; When moving in the direction of the chamber; the body will cause a radially inward position change of the spacer bar. The inflatable mouthpiece as described in Claim 1, wherein: the end of the jaws of each of the inner jaws is provided with an inner clamping portion radially inward, and when the clamping jaws change radially inward, the inner clamping portion It will concentrate on the axis of the tightening hole of each valve plug. The inflatable mouthpiece as described in claim 1, wherein: the claw pieces of each of the outer claws are provided with an outer clamping portion radially inward at one side end of the pressing area, and the claw pieces produce a radial direction When the inside changes, the outer clamping parts will concentrate on the axis of each tightening hole of the valve plug. The inflatable nozzle as described in claim 1, wherein: the claws of each of the outer claws are provided with a set of connecting parts radially inward near the end of the connecting seat; the connecting seat is near each of the joints A group of connecting grooves is arranged on the circumferential side, and the connecting parts of the claws are clamped in the connecting grooves. The inflatable mouthpiece as described in claim 1, wherein: the outer side of the claw piece further includes a blocking area and a recessed area; the recessed area is arranged between the blocking area and the pressing area, and the recessed area The radial thickness is the thinnest position. The inflatable mouthpiece according to claim 1 or 6, wherein: the pressing area is a rising arc. The inflatable nozzle according to claim 1, wherein: the main body is provided with a ring contact portion on at least one side of the air chamber, and the ring contact portion is in contact with the outer circumference of the clamping unit. The inflatable mouthpiece as described in claim 1, wherein: each end surface of the joint is provided with a protrusion, each of the valve plugs is provided with a groove; each of the grooves is embedded in each of the protrusions. The inflatable mouthpiece according to Claim 1, wherein: the hardness of the outer claws is greater than the hardness of the inner claws.

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