Air nozzle head for clamping tire air nozzle

Abstract

The invention provides an air nozzle head for clamping a tire air nozzle, which comprises a main body, a cavity, an air inlet, an air outlet, an air inlet and an air outlet, the air inlet channel is arranged on the main body and is communicated with the cavity; pressure gas can enter the cavity from the gas inlet channel. A through binding hole is formed in the center of the soft binding ring, and the binding ring is arranged in the cavity; and the plurality of clamping pieces are arranged on the clamp. During inflation, a tire valve extends into the binding hole of the binding ring, and gas entering the cavity promotes the binding ring to deform, so that the clamping piece moves towards the center of the binding hole and clamps the tire valve.

Description

Technical Field

[0001] The present invention relates to a tire inflation device, in particular, to a nozzle head connected to a tire air nozzle, which can automatically clamp the tire air nozzle. Background Art

[0002] The inflation device covers the tire nozzle with a nozzle head to inject pressurized gas into the tire from the tire nozzle.

[0003] During inflation, the nozzle head is in a high pressure state, and the tire nozzle may be pushed out of the nozzle head by the pressure of the high pressure gas, making it impossible to inflate. Therefore, preventing the tire nozzle from separating from the nozzle head during inflation is a basic problem. In order to prevent the tire nozzle from separating from the nozzle head, a prior art is to set a lever on the nozzle head, and by pulling the lever, the nozzle head is clamped to the tire nozzle. Summary of the invention

[0004] The present invention provides a nozzle head connected to a tire air nozzle for inflating a tire. The purpose of the present invention is to provide an innovative nozzle head that can automatically clamp the tire air nozzle during inflation to prevent the tire air nozzle from being separated from the nozzle head without using a lever or a structure with similar functions.

[0005] Another object of the present invention is to provide a nozzle head for clamping a tire air nozzle, wherein the nozzle head clamps the tire air nozzle by air pressure during inflation.

[0006] The nozzle head for clamping a tire air nozzle provided by the present invention comprises:

[0007] A main body having a first end and a second end; a chamber disposed in the main body, one end of the chamber passing through the first end of the main body; an air inlet disposed in the main body and connected to the chamber; pressurized gas can enter the chamber from the air inlet;

[0008] a soft clamp ring having a through-hole in the center thereof, the clamp ring being installed in the chamber; and

[0009] A plurality of clamps are arranged on the beam ring and located on the periphery of the beam hole. The gas entering the chamber causes the beam ring to deform, so that the clamps move toward the center of the beam hole.

[0010] Thus, the air nozzle of the tire is inserted into the hole of the tie ring, and the air nozzle head drives the clamping piece to move toward the center of the hole through the air pressure during inflation, so that the clamping piece clamps the air nozzle of the tire. The present invention can clamp the air nozzle of the tire without using a lever or other operating means.

[0011] Preferably, the clamp ring is hollow, having an inner circumferential wall and an outer circumferential wall which maintain a gap, and an air chamber located between the inner circumferential wall and the outer circumferential wall; the pressurized gas entering the chamber flows into the air chamber of the clamp ring, squeezing the inner circumferential wall of the clamp ring toward the center of the clamp hole.

[0012] The present invention further provides a nozzle head for clamping a tire air nozzle, comprising:

[0013] A main body having a bottom end and a top end; a chamber disposed in the main body, one end of the chamber passing through the bottom end of the main body; an air inlet disposed in the main body and connected to the chamber; pressurized gas can enter the chamber from the air inlet;

[0014] A soft cinch ring with a cinch hole formed in the center; the cinch ring is hollow and has an inner ring circumferential wall and an outer ring circumferential wall for maintaining a spacing, and an air chamber located between the inner ring and the outer ring; the air chamber is open and communicated with the chamber; the pressurized gas in the chamber can flow into the air chamber; and

[0015] A plurality of clamps are arranged in a ring shape on the clamp ring, and the inner edge of each clamp is located on the circumference of the clamp hole. When the pressure gas port enters the air chamber of the clamp ring, it exerts pressure on the clamp ring, and the inner ring wall drives the inner edge of the clamp to move toward the center of the clamp hole.

[0016] Thus, the air nozzle of the tire is inserted into the hole of the tie ring, and the air nozzle head is deformed by squeezing the tie ring by the air pressure during inflation, so that the inner ring peripheral wall drives the clamping piece to move toward the center of the tie hole and clamp the air nozzle of the tire. The present invention can clamp the air nozzle of the tire without the need for a lever or similar means.

[0017] Preferably, the air chamber has at least one opening located on a wall surface of the clamp ring; the pressurized gas in the chamber enters the air chamber from the opening.

[0018] Preferably, the clamp is arranged at the bottom end of the clamp ring; and further comprises: a bottom cover having a through hole corresponding to the clamp hole of the clamp ring; the bottom cover is connected to the bottom end of the main body and supports the clamp.

[0019] Preferably, a mounting chamber is provided at the bottom end of the clamping ring; the clip is arranged in the mounting chamber.

[0020] Preferably, the nozzle head further comprises: an inner part, arranged in the chamber and located above the clamp ring; an air passage, arranged in the inner part, the air passage is connected to the chamber and the air chamber of the clamp ring. After the pressurized gas flows into the chamber, it flows into the air chamber of the clamp ring from the air passage.

[0021] Preferably, the opening of the air chamber is located at the top of the clamp ring; the air channel is connected to the chamber and the opening of the air chamber.

[0022] Preferably, the air passage is formed by an annular groove and a through groove, the annular groove is recessed on the outer circumferential surface of the inner component; the through groove is radially arranged on the inner component, at least one end of which is connected to the annular groove, and the bottom side of the through groove passes through the bottom end of the inner component and is connected to the opening of the air chamber of the clamp ring.

[0023] Preferably, the opening of the air chamber is an annular opening, which is located on the top surface of the clamping ring; the bottom end of the inner part has at least one convex ring, and the convex ring extends into the opening.

[0024] Preferably, the inner edge of each clip has a thinner clamping portion, which facilitates the inner edge of the clip to be inserted into a gap between the threads of the tire valve.

[0025] Preferably, the nozzle head further comprises: an air release component installed on the main body and connected to the chamber.

[0026] Preferably, the air leakage component has: an air leakage hole, an air leakage piece and an elastic component, the air leakage hole is arranged in the main body and connected to the chamber; a valve part is arranged in the air leakage piece, the air leakage piece is arranged in the air leakage hole and can be displaced between a sealing position and a air leakage position, when the air leakage piece is located at the sealing position, the valve part seals the air leakage hole; when the air leakage piece is located at the air leakage position, the valve part does not seal the air leakage hole; the elastic component is arranged in the main body, and its elasticity can keep the air leakage piece in the sealing position. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 It is a cross-sectional view of the nozzle head of the first preferred embodiment of the present invention.

[0029] Figure 2 for Figure 1 Exploded top view of the nozzle head.

[0030] Figure 3 for Figure 1 Exploded bottom view of the nozzle head.

[0031] Figure 4 for Figure 1 Bottom stereogram of the cinch ring and the clamp.

[0032] Figure 5 for Figure 4 Exploded three-dimensional diagram.

[0033] Figure 6 A bottom perspective view showing another embodiment of the clamping ring and the clamping member of the present invention.

[0034] Figure 7 for Figure 6 Exploded three-dimensional diagram.

[0035] Figure 8 show Figure 1 Cross-section of a tire with a nozzle head connected to a Presta valve, not inflated.

[0036] Fig. 9 Similar to Figure 8 , showing the status of the nozzle head inflating the tire.

[0037] Fig.10 Similar to Fig. 9 , showing the status of the nozzle head's pressure relief.

[0038] Fig.11 It is a cross-sectional view of a nozzle head according to a second preferred embodiment of the present invention.

[0039] Fig.12 for Fig.11 Exploded bottom view of the nozzle head.

[0040] Fig.13 show Fig.11 Cross-section of a tire with a nozzle head connected to a Schrader valve, not inflated.

[0041] Fig.14 Similar to Fig.13 , showing the status of the nozzle head inflating the tire.

[0042] Among them, 10, 10' nozzle head; 20 main body; 21 bottom end; 22 top end; 23 air inlet; 24 chamber; 26 recessed chamber; 261 hole; 30 inner part; 32 airtight ring; 33 containing chamber; 34 annular groove; 35 through groove; 36 air duct; 38 ring part; 39 ejector rod; 40 clamping ring; 42 clamping hole; 43 inner ring peripheral wall; 44 outer ring peripheral wall; 45 air chamber; 46 opening; 48 installation chamber; 481 second positioning part; 50 clip; 52 first positioning part; 54 clamping part; 60 end cover; 62 through hole; 64 supporting part; 70 air leakage component; 72 seat; 721 leak-proof ring; 73 leak hole; 74 leak part; 75 valve part; 751 leak-proof ring; 76 button; 80, 85 air nozzle; 84, 88 thread; 86 valve stem. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 3 The first preferred embodiment of the present invention provides a nozzle head 10 for clamping a tire air nozzle, which mainly includes: a main body 20, a soft clamp ring 40 and a plurality of clamps 50. The clamp ring 40 is arranged in the chamber 24 of the main body 20, and the clamps 50 are located on the inner circumference of the clamp ring 40. The nozzle head 10 is installed on or connected to an air pump, such as an air pump. The pressurized gas generated by the air pump flows from the air inlet of the nozzle head 10 into the chamber 24 of the nozzle head 10. The pressurized gas drives the clamp ring 40 to deform and squeezes the inner circumference of the clamp ring 40 inward, so that the clamps 50 clamp the tire air nozzle to prevent the air nozzle from falling out of the nozzle head 10.

[0045] The main body 20 has a first end, such as a bottom end 21, and a second end, such as a top end 22; a cylindrical chamber 24 is provided in the main body 20, and one end of the chamber (such as the bottom end) passes through the bottom end 21 of the main body 20; an air inlet 23 is provided on one side of the main body 20 and connected to the chamber 24; pressurized gas enters the chamber from the air inlet 23.

[0046] An inner member 30 is cylindrical and is disposed in the chamber 24. A gas-tight ring 32 is disposed on the circumference of the top of the inner member 30 to gas-tightly engage the circumference of the chamber 24. In this embodiment, the center of the inner member 30 is hollow, forming a chamber 33 for a French valve to extend into. An annular groove 34 is concavely disposed on the outer circumference of the inner member 30; a through groove 35 is disposed on the inner member 30 along the radial direction, and the two ends of the through groove 35 are connected to the annular groove 34, and the bottom side of the through groove 35 also passes through the bottom end of the inner member 30. The annular groove 34 and the through groove 35 are both connected to the chamber 24, and the two 34, 35 together form an air channel 36, which can guide the gas in the chamber 24 to flow to the clamp ring 40.

[0047] The collar 40 is made of rubber and can be deformed by force. A through collar hole 42 is formed in the center of the collar. The collar has a hollow wall, an inner wall 43 and an outer wall 44 that are spaced apart, and an air chamber 45 between the two walls 43 and 44. Figure 2As shown, the air chamber 45 is an annular space in a circle, but it is not limited to this, and it can also be formed by arranging a plurality of hollow small compartments in a circle. The air chamber 45 is open, and at least one opening 46 is formed on a wall surface of the clamp ring 40. In this embodiment, the air chamber 45 has an annular opening 46 located on the top surface of the clamp ring 40. The clamp ring 40 is installed in the chamber 24 and is located below the inner member 30; the top end of the clamp ring 40 contacts the bottom end of the inner member 30, and the opening 46 of the air chamber 45 is connected to the bottom side of the through groove 35 of the inner member 30. In addition, a ring-shaped convex ring 38 is provided at the bottom end of the inner member 30. In this embodiment, the convex ring 38 is divided into two convex rings with a predetermined arc length (for example, semicircular) by the through groove 35. The convex ring 38 extends into the opening 46 to separate the inner ring peripheral wall 43 from the outer ring peripheral wall 44.

[0048] The plurality of clips 50 are annular metal sheets, and the number is preferably two, three or four, but not limited thereto, and may be a greater number. The clips 50 are preferably arranged in a circle or a circle. The clips 50 are arranged on the clamp ring 40, and the inner edge thereof is located at or exposed to the hole wall of the clamp hole 42. The clips 50 are installed on the inner peripheral wall 43 of the clamp ring 40, which is conducive to the clips being located at the peripheral surface of the clamp hole 42.

[0049] See also Figure 4 and Figure 5 The bottom end of the clamp ring 40 is concavely provided with an annular installation chamber 48, which is located on the inner peripheral wall 43 and communicates with the clamp hole 42; two clips 50 are installed in the installation chamber 48 and arranged in a circle, each clip 50 has an outer edge and an inner edge, and its inner edge can extend into the clamp hole 42. A plurality of first positioning portions 52 are provided on the periphery of each clip 50, which can be mutually buckled with a plurality of second positioning portions 481 provided in the installation chamber 48 in a concave-convex matching relationship, so that the clip 50 is positioned in the installation chamber.

[0050] See also Figure 6 and Figure 7 , which is another embodiment of the present invention, a clamping ring 40 and a clip 50. This embodiment takes three clips as an example. The three clips 50 are arranged in the installation chamber 48 of the clamping ring 40 and arranged in a circle. The two ends of each clip are respectively provided with a first positioning portion 52, which can be buckled with the second positioning portion 481 provided in the installation chamber 48 in a concave-convex matching relationship.

[0051] The inner edge of each clip 50 is formed into a relatively thin clamping portion 54, so that the inner edge of the clip can be inserted into the gap between the threads of the tire valve.

[0052] An end cap 60 is detachably mounted on the bottom end 21 of the main body 20 by screwing or other means, so that the clamping ring 40 is retained in the chamber 24. The end cap 60 has a through hole 62 corresponding to the clamping hole 42 of the clamping ring 40 and the chamber 33 of the inner member 30. The end cap 60 is provided with a circle of abutting portions 64 protruding from the wall surface facing the clamping ring to support the clips 50.

[0053] The nozzle head further includes: a venting assembly 70, which is installed on a wall of the main body 20 and connected to the chamber 24 to release the pressurized gas in the chamber. The venting assembly 70 has: a seat 72, a venting piece 74 and an elastic assembly 78. The seat 72 is arranged in a recessed chamber 26 provided in the main body 20, and is airtight with a leak-proof ring 721. The recessed chamber 26 is connected to the chamber 24 via a hole 261. A venting hole 73 is provided in the seat 72 and passes through the two ends of the seat 72. The venting hole 73 is connected to the chamber 24 via the hole 261. The venting piece 74 is a rod body, and one end (inner end) thereof has a valve portion 75, and the valve portion 75 is provided with a leak-proof ring 751. The venting piece 74 is installed in the venting hole 73, and can be Figure 1 The seal position shown and Fig.10 When the leaking member 74 is located in the sealing position, the valve portion 75 seals the leaking hole 73 so that the gas in the chamber 24 cannot flow out of the leaking hole 73. The other end (outer end) of the leaking member 74 is provided with a button 76 for pressing. The elastic component 78 is provided in the main body 20 to elastically support the leaking member 74, and its elastic energy acts on the leaking member 74 so that the leaking member 74 remains in the sealing position under normal conditions. Preferably, the chamber 33 of the inner member 30 has a hole portion 331 penetrating the top end of the inner member, and the chamber 33 is connected to the leaking hole 73 via the hole portion 331 and the hole 261.

[0054] The following describes the use of the nozzle head 10. The nozzle head of this embodiment is suitable for tires with a Presta valve 80. Figure 8 When the tire is to be inflated, the nozzle head 10 is first covered with the air nozzle 80. When there is no pressurized gas in the chamber of the nozzle head, the clips 50 will not interfere with the air nozzle. Therefore, the air nozzle 80 can pass through the bundle hole 42 of the tie ring 40 and the chamber 33 of the inner part 30.

[0055] Then, the pressurized gas of the pumping device is allowed to enter the chamber 24 from the air inlet 23. Fig. 9As shown, the pressurized gas will flow from the annular groove 34 into the through groove 35, and then flow from the bottom side of the through groove 35 into the air chamber 45 of the clamp ring from the opening 46 of the clamp ring 24. The pressure of the pressurized gas will squeeze the clamp ring 40 to deform, and the air chamber 45 will expand and increase. The pressurized gas will squeeze the outer circumferential wall 44 outward, so that it will stretch outward and fit the circumference of the chamber 24; the pressurized gas will squeeze the inner circumferential wall 33 toward the beam hole 42, so that the beam hole 42 will shrink and tighten the gas nozzle 80 inward to maintain airtightness, so that the pressurized gas in the chamber 24 cannot leak out. At the same time, the inner circumferential wall 33 squeezed toward the beam hole 42 pushes the clips 50 to move along the radial direction of the beam hole toward the center of the beam hole 42, and the displacement is to Fig. 9 In the clamping position shown, the clamping portion 54 on the inner edge of the clip 50 extends into the beam hole 42 and is inserted into the gap between the threads 84 of the air nozzle 80. In this way, the air nozzle 80 is fixed by the clip 50 and will not fall out of the air nozzle head 10 during the inflation process.

[0056] During inflation, the pressurized gas in the chamber 24 flows into the air nozzle 80 to inflate the tire. The pressurized gas in the chamber 24 also keeps squeezing the clamp ring 40 so that the clip 50 clamps the air nozzle 80 , and the end cover 60 supports the clip 50 .

[0057] After the inflation is completed, the user Fig.10 As shown, the air leakage member 74 of the air leakage assembly 70 is pressed to the air leakage position, so that the valve portion 75 no longer seals the air leakage hole 73, and the gas in the chamber 24 can flow to the air leakage hole 73 through the hole portion 331 and the hole 261, and then flow to the outside, and the chamber 24 returns to normal pressure. The clamp ring 40 is no longer pressurized by the pressurized gas, and the air chamber 45, the inner peripheral wall 33 and the outer peripheral wall 34 return to normal pressure. Figure 8 In the normal state shown, the clips 50 move away from the beam hole 42, returning to Figure 8 In the unclamped position shown, the air nozzle 80 is no longer clamped by the clamping portion 54 of the inner edge of the clip 50, and the air nozzle head 10 can be separated from the air nozzle 80. After releasing the force applied to the air release member 74, the elastic component 78 drives the air release member to return to the original position. Figure 1 Seal position shown.

[0058] Figure 11 to Figure 12 The nozzle head 10' for clamping a tire air nozzle provided by the second preferred embodiment of the present invention also includes: a main body 20, an inner part 30, a clamp ring 40, a plurality of clamps 50, an end cover 60 and a deflation component 70. Most of the components of this embodiment are the same as those of the first preferred embodiment. To avoid redundancy, the same components are marked with the same reference numerals as those of the first preferred embodiment, and their structures can be understood from the first preferred embodiment.

[0059] The nozzle head 10' of this embodiment is suitable for tires with Schrader valves, and the difference between this embodiment and the first embodiment is that the structure of the inner part 30' is slightly different. A suspended push rod 39 is provided in the chamber 33 of the inner part 30' to support the valve stem of the Schrader valve.

[0060] See also Fig.13 When there is no pressurized gas in the chamber 24 of the main body 20, the clamping ring 40 is in a normal state and is not squeezed by the pressurized gas. The clips 50 are in an unclamped position and will not interfere with the Schrader gas nozzle 85, so that the gas nozzle can easily penetrate into the binding hole 42 of the clamping ring 40. The push rod 39 pushes open the valve stem 86 of the gas nozzle 85, so that the pressurized gas can flow into the gas nozzle.

[0061] Then, the pressurized gas of the pumping device is allowed to enter the chamber 24, as shown in FIG. Fig.14 As shown, the pressurized gas will flow from the annular groove 34 into the through groove 35, and then flow into the air chamber 45 of the clamp ring from the opening 46 of the clamp ring 24. The pressure of the pressurized gas squeezes the clamp ring 40 to deform, making the air chamber 45 larger. The outer circumferential wall 44 expands outward and fits the circumference of the chamber 24, while the inner circumferential wall 33 expands inward, so that the clamp hole 42 tightens the gas nozzle 85 to maintain airtightness, and the pressurized gas in the chamber 24 will not leak out. The inner circumferential wall 33 of the clamp ring 40 pushes the clips 50 to move toward the center of the clamp hole 42, and the displacement to Fig.14 In the clamping position shown, the clamping portion 54 on the inner edge of the clip 50 is inserted into the gap of the thread 88 of the air nozzle 85 to clamp the air nozzle, so that the air nozzle will not fall out of the air nozzle head 10' during the inflation process. During inflation, the pressurized gas in the chamber 24 is injected into the tire from the air nozzle 85 to inflate the tire, and the pressurized gas in the chamber 24 keeps squeezing the clamp ring 40, so that the clip 50 clamps the air nozzle 85.

[0062] After the inflation is completed, the deflation member 74 of the deflation assembly 70 is pressed to the deflation position, so that the valve portion 75 no longer seals the deflation hole 73, allowing the gas in the chamber 24 to escape from the deflation hole 73, thereby reducing the air pressure in the chamber 24. The clamp ring 40 is no longer pressurized by the pressurized gas, and the air chamber 45, the inner peripheral wall 33 and the outer peripheral wall 34 are restored to the original state. Fig.13 In the normal state shown, the clips 50 move in the opposite direction of the beam hole 42 to restore Fig.13 In the unclamped position shown, the air nozzle 85 is no longer clamped, and the nozzle head 10 ′ can be separated from the air nozzle 85 .

[0063] The nozzle head 10 (10') provided by the present invention utilizes the pressure gas during inflation to squeeze the clamp ring 40, so that the clamp ring is deformed by force, and drives the clamping piece 50 to move toward the clamp hole 42 of the clamp ring 40, thereby clamping the tire's air nozzle to prevent the tire's air nozzle from being separated from the nozzle head during the inflation process. The nozzle head of the present invention can clamp the tire's air nozzle without setting and operating a lever or other operating means. The technical means of the present invention are the first of their kind and have improved efficacy.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A nozzle head for clamping a tire air nozzle, characterized in that: Contains: A main body having a first end and a second end; a chamber disposed in the main body, one end of the chamber passing through the first end of the main body; an air inlet disposed in the main body and connected to the chamber; pressurized gas can enter the chamber from the air inlet; a soft clamp ring having a through-hole in the center thereof, the clamp ring being installed in the chamber; and A plurality of clamps are arranged on the beam ring and located on the periphery of the beam hole. The gas entering the chamber causes the beam ring to deform, so that the clamps move toward the center of the beam hole.

2. The nozzle head according to claim 1, characterized in that: The beam ring is hollow and has an inner circumferential wall and an outer circumferential wall which are spaced apart, and an air chamber between the inner circumferential wall and the outer circumferential wall; the pressurized gas entering the chamber flows into the air chamber of the beam ring, pressing the inner circumferential wall of the beam ring toward the center of the beam hole.

3. A nozzle head for clamping a tire air nozzle, characterized in that: Contains: A main body having a bottom end and a top end; a chamber disposed in the main body, one end of the chamber passing through the bottom end of the main body; an air inlet disposed in the main body and connected to the chamber; pressurized gas can enter the chamber from the air inlet; A soft cinch ring with a cinch hole formed in the center; the cinch ring is hollow and has an inner ring circumferential wall and an outer ring circumferential wall for maintaining a spacing, and an air chamber located between the inner ring and the outer ring; the air chamber is open and communicated with the chamber; the pressurized gas in the chamber can flow into the air chamber; and A plurality of clamps are provided on the clamp ring and arranged in a ring shape. Each of the clamps has an inner edge, and the inner edge of the clamp is located on the circumference of the bundle hole. When the pressure gas port enters the air chamber of the clamp ring, pressure is applied to the clamp ring, the air chamber expands, and the inner ring circumferential wall drives the inner edge of the clamp to move toward the center of the bundle hole.

4. The nozzle head according to claim 3, characterized in that: The air chamber has at least one opening located on a wall surface of the clamp ring; the pressure gas in the chamber enters the air chamber from the opening.

5. The nozzle head according to claim 3, characterized in that: The clamp is arranged at the bottom end of the clamp ring; and further comprises: a bottom cover having a through hole corresponding to the clamp hole of the clamp ring; the bottom cover is connected to the bottom end of the main body and supports the clamp.

6. The nozzle head according to claim 3 or 5, characterized in that: The bottom end of the clamp ring is provided with a mounting chamber; the clamping piece is arranged in the mounting chamber.

7. The nozzle head according to claim 3 or 5, characterized in that: The invention also comprises: an inner part arranged in the chamber and located above the clamp ring; an air passage arranged in the inner part, the air passage is connected with the chamber and the air chamber of the clamp ring.

8. The nozzle head according to claim 4, characterized in that: The opening is located at the top of the clamp ring; and further comprises: an inner part, arranged in the chamber and located above the clamp ring; an airway, arranged in the inner part, the airway communicates with the chamber and the opening of the air chamber.

9. The nozzle head according to claim 8, characterized in that: An annular groove is concavely arranged on the outer circumference of the inner member; a through groove is radially arranged on the inner member, at least one end of the through groove is connected to the annular groove, the bottom side of the through groove passes through the bottom end of the inner member and is connected to the opening of the air chamber of the clamp ring.

10. The nozzle head according to claim 8, characterized in that: The opening is an annular opening located on the top surface of the clamping ring; the bottom end of the inner part has at least one convex ring extending into the opening.

11. The nozzle head according to claim 3, characterized in that: The inner edge of each clip has a thinner clamping portion.

12. The nozzle head according to claim 3, characterized in that: The invention also comprises: an air release component which is installed on the main body and communicated with the chamber.

13. The nozzle head according to claim 12, characterized in that: The air leakage component comprises: an air leakage hole, an air leakage part and an elastic component. The air leakage hole is arranged in the main body and connected to the chamber; a valve part is arranged in the air leakage part. The air leakage part is arranged in the air leakage hole and can be displaced between a sealing position and a air leakage position. When the air leakage part is located at the sealing position, the valve part seals the air leakage hole; when the air leakage part is located at the air leakage position, the valve part does not seal the air leakage hole; the elastic component is arranged in the main body, and its elasticity can keep the air leakage part in the sealing position.

Images