CN219062545U

CN219062545U - Tubeless vacuum nozzle

Info

Publication number: CN219062545U
Application number: CN202223041745.1U
Authority: CN
Inventors: 苏清林
Original assignee: Kunshan Fuluo Auto Parts Co ltd
Current assignee: Kunshan Fuluo Auto Parts Co ltd
Priority date: 2022-11-16
Filing date: 2022-11-16
Publication date: 2023-05-23
Anticipated expiration: 2032-11-16

Abstract

The utility model provides a tubeless vacuum nozzle which is fixed on a rim and comprises a hollow threaded rod and a core rod nested in the hollow threaded rod, wherein the core rod is a hollow rod; the lower extreme of cavity threaded rod is provided with the base, is provided with recess B in the middle of the base bottom, is provided with the recess C of intercommunication cavity threaded rod cavity passageway in the middle of the recess B, and the upper end of core bar stretches into the cavity passageway of cavity threaded rod from the base, and the lower extreme of core bar is sliding connection in recess C, and the length of core bar is greater than the length of cavity screw rod, and the external screw thread through setting up connects soon to have sealed cap on the core bar upper end, is provided with recess A in the middle of the bottom of sealed cap, is provided with the thread groove that does not run through and correspond the external screw thread in the middle of the recess A, and sealed cap's whole body encircles and is provided with the exhaust hole of four sets of intercommunication thread grooves. Because the coreless vacuum design is adopted, a valve core is not needed, the operation is convenient, and the efficiency is higher.

Description

Tubeless vacuum nozzle

Technical Field

The utility model belongs to the technical field of inflating valves, and particularly relates to a tubeless vacuum nozzle.

Background

The inflating valve is an independent one-way valve body device, when the inflating valve is opened, air is allowed to enter the space of the tubeless tire or the inner tube, and then the inflating valve is automatically closed and sealed to preserve the air so as to generate air pressure, so that the air is prevented from escaping the tire or the inner tube. Tires used in automobiles are liner-free tires, structurally, a valve and the tires are separated from each other, and the valve is mounted on a rim to play a role.

The tyre repairing liquid is one kind of polymer chemical material and is suitable for use in tyre of electric vehicle, motorcycle and small and medium-sized automobile. When the tyre repairing liquid is injected, the valve core is firstly required to be unscrewed anticlockwise by a specific valve core wrench, then the tyre repairing liquid is injected into the tyre repairing liquid by aligning the bottle mouth of the tyre repairing liquid with the valve mouth, or the tyre repairing liquid is injected into the tyre along the valve mouth by an injector, and finally the valve core is rotated back to the valve mouth by the valve core wrench. Therefore, when the existing valve is used for injecting the tire repair liquid, the valve core needs to be detached, and once the valve core wrench is lost, the tire repair liquid cannot be injected, so that the valve is quite inconvenient.

In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.

Disclosure of Invention

In view of the drawbacks noted in the background art, it is an object of the present utility model to provide a tubeless valve that eliminates the traditional valve core to allow rapid tire repair without disassembly.

In order to achieve the above object, the technical scheme of the present utility model is as follows:

the tubeless vacuum nozzle is fixed on the rim and comprises a hollow threaded rod and a core rod nested in the hollow threaded rod, wherein the core rod is a hollow rod; the lower extreme of cavity threaded rod is provided with the base, be provided with recess B in the middle of the base bottom, be provided with the recess C of intercommunication cavity threaded rod cavity passageway in the middle of the recess B, the upper end of core bar stretches into the cavity passageway of cavity threaded rod from the base, the lower extreme of core bar is in slip joint in recess C, the length of core bar is greater than the length of cavity threaded rod, the core bar upper end has connect the sealing cap soon through the external screw thread that sets up, be provided with recess A in the middle of the bottom of sealing cap, be provided with the thread groove that does not run through and correspond the external screw thread in the middle of the recess A, the whole body of sealing cap encircles the exhaust hole that is provided with four sets of intercommunication thread grooves.

As a preferable technical scheme, the lower end of the core rod is provided with a tail block with the width being larger than the diameter of the core rod and the thickness being smaller than the diameter of the core rod, the end face of the tail block is provided with a through air inlet and outlet, a cavity of the core rod is communicated with the air inlet and outlet, and the tail block is connected in a sliding mode in the groove C.

As a preferred technical scheme, the tail piece lower extreme is connected with the collet through the connecting rod, the collet whole body is provided with two sets of guide blocks of evagination, and the contained angle of two guide blocks is the degree, the whole body of base encircles and is provided with six sets of intercommunication recess B's notch, and six sets of notches all point to recess B's axis, two sets of guide blocks of tail piece inlay in corresponding notch.

As a preferable technical scheme, the depth of the groove C is larger than the total length of the tail block and the connecting rod, and the connecting rod is sleeved with a sealing ring.

As a preferable technical scheme, a limit ring used for limiting the displacement of the core rod is embedded in the groove B of the base, the lower end of the base is divided into six groups of independent cylinders by six groups of notches, each cylinder is provided with a clamping groove towards one side of the groove B, and the limit ring is embedded in the groove B through the clamping groove.

As a preferable technical scheme, the body of the hollow threaded rod is screwed with a compression nut, one side of the compression nut, which faces the base, is embedded with an O-shaped ring, the lower end of the hollow threaded rod is sleeved with a conical rubber pad, and the rubber pad is propped against the base and the tip of the rubber pad faces the O-shaped ring.

After the technical scheme is adopted, the utility model has the beneficial effects that:

when filling the tire repair liquid, the sealing cap is screwed down firstly, the lower slide of the core rod is blocked by the limiting ring, the tire repair liquid is filled into the upper port of the aligning core rod, the tire repair liquid enters the tire along the cavity of the core rod, and the repair is completed after the tire repair liquid is solidified. After repairing, the tire is inflated, the inflation end is aligned with the upper port of the core rod, compressed gas is filled into the tire, when the pressure is enough, the inflation end is pulled out, the bottom support moves outwards under the action of the tire pressure because the pressure in the tire is far higher than the atmospheric pressure, the tail block is completely embedded into the groove C, the sealing ring is embedded into the groove C to prevent the gas from leaking, and finally the sealing cap is screwed on. Because the coreless vacuum design is adopted, a valve core is not needed, the operation is convenient, and the efficiency is higher.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of the core rod.

Fig. 3 is a cross-sectional view of the present utility model.

The marks in the figure: 1. the sealing cap, 2, the grooves A and 3, the thread groove, 4, the exhaust hole, 5, the core bar, 6, the hollow threaded rod, 7, the compression nut, 8, the O-shaped ring, 9, the rubber cushion, 10, the base, 11, the notch, 12 and the limit ring, 13, grooves B and 14, cavities, 15, external threads, 16, tail blocks, 17, air inlet and outlet ports, 18, connecting rods, 19, a bottom bracket, 20, guide blocks, 21, sealing rings, 22, grooves C and 23 and clamping grooves.

Detailed Description

Features and exemplary embodiments of various aspects of the present utility model will be described in detail below, and in order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the utility model and are not configured to limit the utility model. It will be apparent to one skilled in the art that the present utility model may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the utility model by showing examples of the utility model.

The directional terms appearing in the following description are those directions shown in the drawings and do not limit the specific structure of the utility model. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

As shown collectively in fig. 1-3, a tubeless vacuum nozzle is secured to the rim and includes a hollow threaded rod 6 and a core rod 5 nested within it. The lower extreme of cavity threaded rod 6 is provided with base 10, is provided with recess B13 in the middle of the base 10 bottom, is provided with recess C22 that communicates cavity threaded rod 6 hollow channel in the middle of the recess B13. The upper end of the core rod 5 extends into the hollow channel of the hollow threaded rod 6 from the base 10, and the lower end of the core rod 5 is in sliding connection in the groove C22. The core rod 5 is a hollow rod, the length of the core rod 5 is longer than that of the hollow threaded rod 6, and the upper end of the core rod 5 is screwed with the sealing cap 1 through the arranged external thread 15. The middle of the bottom of the sealing cap 1 is provided with a groove A2, the middle of the groove A2 is provided with a thread groove 3 which does not penetrate through and corresponds to the external thread 15, and the whole body of the sealing cap 1 is provided with four groups of vent holes 4 communicated with the thread groove 3 in a surrounding mode. When the sealing cap 1 is in threaded connection with the core rod 5, the groove A2 at the bottom of the sealing cap 1 is buckled at the upper end of the hollow threaded rod 6, and the upper port of the core rod 5 is higher than the position of the exhaust hole 4.

The body of the hollow threaded rod 6 is screwed with a compression nut 7, one side of the compression nut 7 facing the base 10 is embedded with an O-shaped ring 8, the lower end of the hollow threaded rod 6 is sleeved with a conical rubber pad 9, the rubber pad 9 is propped against the base 10, and the tip of the rubber pad is facing the O-shaped ring 8. When the vacuum nozzle is installed, the hollow threaded rod 6 penetrates out of the inner side of the rim, the base 10 is aligned with the inner side surface of the rim, the compression nut 7 is aligned with the outer side surface of the rim, and the hollow threaded rod 6 is fixed on the rim through compression between the compression nut 7 and the base 10, so that the sealing performance of the joint is improved by the O-shaped ring 8 and the rubber pad 9, and air leakage is avoided.

The lower end of the core rod 5 is provided with a tail block 16 with the width larger than the diameter of the core rod 5 and the thickness smaller than the diameter of the core rod 5, the end face of the tail block 16 is provided with an air inlet and outlet 17 which is communicated with the rectangular cavity 14 of the core rod 5, and the air inlet and outlet 17 is communicated with the rectangular cavity 14. The air inlet and outlet 17 is enlarged, so that the air inlet and outlet speed is increased. The tail block 16 is connected in a sliding way in the groove C22, the lower end of the tail block 16 is connected with a bottom support 19 through a connecting rod 18, two groups of outwards protruding guide blocks 20 are arranged on the whole body of the bottom support 19, and the included angle of the two guide blocks 20 is 180 degrees. Six groups of notches 11 communicated with the groove B13 are formed around the whole body of the base 10, the six groups of notches 11 point to the central axis of the groove B13, and two groups of guide blocks 20 of the tail block 16 are embedded in the corresponding notches 11. The depth of the groove C22 is larger than the total length of the tail block 16 and the connecting rod 18, and the connecting rod 18 is sleeved with a sealing ring 21.

The limit ring 12 used for limiting the displacement of the core rod 5 is embedded in the groove B13 of the base 10, the lower end of the base 10 is divided into six groups of independent cylinders by six groups of notches 11, a clamping groove 23 is formed in one side, facing the groove B13, of each cylinder, and the limit ring 12 is embedded in the groove B13 through the clamping groove 23. The stop collar 12 can block the core rod 5 from sliding down to avoid falling into the tire.

When filling the tire repair liquid, the sealing cap 1 is screwed down firstly, the core rod 5 slides downwards and is blocked by the limiting ring 12, the tire repair liquid is filled in the upper port of the alignment core rod 5, the tire repair liquid enters the tire along the cavity 14 of the core rod 5, and the repair is completed after the tire repair liquid is solidified. After repairing, the tire is inflated, the inflation end is aligned with the upper port of the core rod 5, compressed gas is filled into the tire, when the pressure is enough, the inflation end is pulled out, the bottom support 19 moves outwards under the action of the tire pressure because the pressure in the tire is far higher than the atmospheric pressure, the tail block 16 is completely embedded into the groove C22, the sealing ring 21 is embedded into the groove C22 to prevent the gas from leaking, and finally the sealing cap 1 is screwed on.

In accordance with the above embodiments of the present utility model, these embodiments are not exhaustive of all technical details, nor are they intended to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model and various modifications as are suited to the particular use contemplated. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The tubeless vacuum nozzle is fixed on a rim and comprises a hollow threaded rod (6) and a core rod (5) nested in the hollow threaded rod, wherein the core rod (5) is a hollow rod; the method is characterized in that: the lower extreme of cavity threaded rod (6) is provided with base (10), be provided with recess B (13) in the middle of base (10) bottom, be provided with recess C (22) of intercommunication cavity threaded rod (6) cavity passageway in the middle of recess B (13), the upper end of core bar (5) stretches into the cavity passageway of cavity threaded rod (6) from base (10), the lower extreme of core bar (5) is in sliding connection in recess C (22), the length of core bar (5) is greater than the length of cavity threaded rod (6), the outer screw thread (15) that set up are screwed in core bar (5) upper end has sealed cap (1), be provided with recess A (2) in the middle of the bottom of sealed cap (1), be provided with in the middle of recess A (2) non-run through and correspond outer screw thread (15) thread groove (3), the whole body of sealed cap (1) encircles and is provided with exhaust hole (4) of four sets of intercommunication thread groove (3).

2. A tubeless vacuum nozzle according to claim 1 wherein: the lower end of the core rod (5) is provided with a tail block (16) with the width being larger than the diameter of the core rod (5) and the thickness being smaller than the diameter of the core rod (5), the end face of the tail block (16) is provided with a through air inlet and outlet (17), a cavity (14) of the core rod (5) is communicated with the air inlet and outlet (17), and the tail block (16) is connected in a sliding mode in the groove C (22).

3. A tubeless vacuum nozzle according to claim 2 wherein: the utility model discloses a novel structure of a foot rest, including base (10), tail piece (16), connecting rod (18), shoe (19) are connected with shoe (19) through connecting rod (18), shoe (19) are provided with two sets of guide blocks (20) of evagination on the whole body, and the contained angle of two guide blocks (20) is 180 degrees, the whole body of base (10) encircles notch (11) that are provided with six sets of intercommunication recess B (13), and six sets of notches (11) all point to the axis of recess B (13), two sets of guide blocks (20) of tail piece (16) inlay in notch (11) that correspond.

4. A tubeless vacuum nozzle according to claim 3 wherein: the depth of the groove C (22) is larger than the total length of the tail block (16) and the connecting rod (18), and the connecting rod (18) is sleeved with a sealing ring (21).

5. A tubeless vacuum nozzle according to claim 3 wherein: the limit ring (12) used for limiting the displacement of the core rod (5) is embedded in the groove B (13) of the base (10), the lower end of the base (10) is divided into six groups of independent columns by six groups of notches (11), each column is provided with a clamping groove (23) towards one side of the groove B (13), and the limit ring (12) is embedded in the groove B (13) through the clamping groove (23).

6. A tubeless vacuum nozzle according to claim 1 wherein: the utility model discloses a novel energy-saving device for the automobile, including hollow threaded rod (6), gland nut (7) has been connect soon to the shaft of hollow threaded rod (6), gland nut (7) have embedded O type circle (8) towards one side of base (10), the cover of hollow threaded rod (6) lower extreme has conical cushion (9), cushion (9) support on base (10) and pointed end towards O type circle (8).