CN217632845U - Inflating device and universal air nozzle connector thereof - Google Patents

Abstract

The utility model discloses an aerating device and a universal air tap connector thereof, wherein the universal air tap connector comprises a shell, an operating handle pivoted on the top of the shell, a columnar plug body, a top shaft, a movable sliding block component and a rubber clamping piece which are sequentially arranged in an inner cavity of the shell from top to bottom, and a connecting pipe part for leading compressed gas into the inner cavity of the shell is also arranged on the side wall of the shell; and a roller pin for clamping the top shaft is arranged between the top shaft and the movable sliding block assembly, and the roller pin and the movable sliding block are in a linear contact relation in a clamping state. Through inciting somebody to action the kingpin with set up to the line contact relation between the activity sliding block set spare, and adopt activity sliding block set spare etc. mutually supports, the utility model provides an easy scratch wearing and tearing problem of inner wall of casing among the prior art to prolonged the life of product greatly, and can avoid the kingpin is blocked dead problem, the performance of product is more reliable and more stable.

Description

Inflating device and universal air nozzle connector thereof

Technical Field

The utility model relates to an aerating device especially relates to an aerating device and general air cock connector thereof.

Background

The tire is used widely as an indispensable component in a vehicle, and correspondingly, an inflating device for inflating the tire also becomes one of tools which cannot be separated from daily life. In order to meet the requirements of different consumers, even the use requirements of the same consumer under different conditions, the air inflation joint of the universal American type air nozzle and the French type air nozzle is available on the market, such as the Chinese utility model patent with the publication number of CN 203809252U. However, the inflation joint in the prior art has the problems of high product cost, poor reliability, poor use experience of some products and short service life, so that improvement is needed. For example the piston of centre gripping air cock is great in the design of above-mentioned patent, and the thrust that bears during the high pressure is very big, dismantles very big bounce occasionally of air cock, and operation experience is not good, and because of this design air cock piston reset spring is in both sides for the casing size is great, and is with high costs and carry inconvenience. In addition, the design of the above patent can only achieve the dual-purpose of American air nozzle and French air nozzle, and can not be applied to English air nozzle, therefore, it is not a true universal inflation connector.

It is to be noted that the information disclosed in the above background section is only for understanding the background of the present application and thus may include information that does not constitute prior art known to a person of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a general air cock connector with long service life and stable and reliable performance, which comprises a shell, an operating handle pivoted on the top of the shell, a columnar plug body, a top shaft, a movable sliding block component and a rubber clamping piece which are sequentially arranged in an internal cavity of the shell from top to bottom, wherein the side wall of the shell is also provided with a connecting pipe part for leading compressed gas into the internal cavity of the shell; a first resetting component capable of automatically resetting the columnar plug body is arranged between the columnar plug body and the top shaft, and a second resetting component capable of automatically resetting the top shaft is arranged on the movable sliding block assembly; the movable sliding block assembly is provided with a sliding block assembly through hole for the lower end part of the top shaft to pass through, the rubber clamping piece is provided with a clamping piece through hole for the lower end part of the top shaft to pass through, and a clamping cavity with a downward opening is formed; a roller pin for clamping the top shaft is arranged between the top shaft and the movable sliding block assembly, and in a clamping state, the roller pin is in line contact with the inner wall of the movable sliding block; the operating handle can be switched between two working states of locking and unlocking through pivoting operation.

The utility model discloses still can adopt following optional/preferred scheme:

the movable sliding block assembly comprises a cylinder part and two opposite roller pin collision parts positioned on the inner side of the cylinder part, and the roller pin collision parts are planes; the needle rollers are arranged on two opposite sides of the jacking shaft in pairs, the axial directions of the needle rollers are perpendicular to the axial direction of the column part, and a linear contact relation is formed when the needle rollers are in close contact with the needle roller collision parts.

The movable sliding block assembly comprises a cylinder part and two lug parts extending upwards along the cylinder part, the two lug parts are oppositely arranged, and the opposite surfaces are planes; the columnar plug body is provided with two notch parts which are respectively matched with the two lug parts, and the two lug parts can enter or exit the two notch parts; the roller pins are arranged on two opposite sides of the jacking shaft in pairs, the axial directions of the roller pins are perpendicular to the axial direction of the column part, and when the roller pins are in close contact with the roller pin abutting parts, a line contact relation is formed.

The bottom surface of breach portion is the inclined plane, the top surface of two lug parts is the inclined plane, the bottom surface of breach portion with the inclination phase-match of the top surface of lug part to can laminate each other.

The movable sliding block assembly further comprises a lining arranged in the cylindrical part, and the lining is cylindrical; the inner liner comprises an upper inner liner section and a lower inner liner section, the outer diameter of the upper inner liner section is equal to the inner diameter of the cylindrical part, the outer diameter of the lower inner liner section is smaller than the inner diameter of the cylindrical part, and an accommodating cavity capable of accommodating the second resetting part is formed between the outer side of the lower inner liner section and the cylindrical part; the upper end face of the lining is an abutting inclined face for jacking the roller pins, and the abutting inclined face is high inside and low outside.

And a sealing element is arranged between the columnar plug body and the shell for sealing.

The top shaft comprises a top shaft upper section and a top shaft lower section, the diameter of the top shaft upper section is larger than that of the top shaft lower section, and the top shaft upper section and the top shaft lower section are in transition through a section of cone; the columnar plug body is provided with a top shaft accommodating cavity with a downward opening along the axial direction, and the top shaft accommodating cavity can be used for accommodating at least the upper section of the top shaft; the inner diameter of the lining is correspondingly consistent with the inner diameter of the top shaft accommodating cavity.

And a limiting connecting piece is further arranged between the columnar plug body and the movable sliding block so as to limit the reset height of the columnar plug body.

The lower end of the shell is also provided with an end cover, and the bottom wall of the end cover is provided with an end cover through hole; the end cover through hole corresponds to the clamping cavity.

The utility model also provides an aerating device, including aerating device body and air cock connector, the air cock connector is as above arbitrary the general air cock connector.

Compared with the prior art, one or more technical schemes provided in the embodiment of the application have at least the following beneficial effects:

by setting the needle roller and the movable sliding block to be in a linear contact relationship and adopting the technical characteristics of the movable sliding block assembly and the like, the problem that the inner wall of the shell is easily scratched and abraded in the prior art is solved, so that the service life of a product is greatly prolonged, the problem that the needle roller is blocked can be avoided, and the performance of the product is more stable and reliable.

Through the cooperation that adopts breach portion and lug portion etc. in technical scheme, can make the motion between the relevant part have directive property more with the cooperation to cooperation that can be more smooth and easy, and can promote the reliability.

Through the column cock body is established the apical axis and is held the chamber, the apical axis includes that the structures of apical axis upper segment and apical axis lower segment etc. cooperate, both can make the product structure compacter to reduce the volume, can be right again the apical axis plays the guide effect, promotes the stability and the reliability of product operation.

Through set up spacing connecting piece in technical scheme in order to restrict the height that resets of column cock body, can keep the relative position relation between the relevant part in the predetermined scope, can conveniently operate, improve user's operation experience.

Through adding extra end cover, can keep the position of rubber holder in the casing more reliably, can also increase the intensity of casing corresponding part simultaneously to guarantee the reliable and stable of centre gripping, and the product is not fragile.

Drawings

FIG. 1 is an exploded view of a universal gas nozzle connector of one embodiment;

FIG. 2A is a schematic cross-sectional view of the universal air nozzle connector of FIG. 1 in a locked position;

FIG. 2B is a cross-sectional schematic view of the universal air nozzle connector of FIG. 1 in a loosened condition;

FIG. 3A is a schematic cross-sectional view of the universal air faucet connector in connection with the American style air faucet and locking the operating handle;

FIG. 3B is a cross-sectional view of the universal air nozzle connector in a state of being connected to the American style air nozzle but the operating handle is released;

FIG. 4A is a schematic cross-sectional view of the universal nozzle connector in connection with a French nozzle and locking the operating handle;

FIG. 4B is a schematic cross-sectional view of the universal air nozzle connector coupled to the French air nozzle with the operating handle in a released position;

FIG. 4C is a schematic cross-sectional view of the universal air faucet connector in connection with a French air faucet with the operating handle in a semi-locked and semi-unlocked state (i.e., in a state between the locked and unlocked states);

FIG. 5A is a schematic cross-sectional view of the universal air nozzle connector in connection with the British air nozzle and locking the operating handle;

FIG. 5B is a cross-sectional view of the universal air nozzle connector coupled to the air nozzle but with the operating handle in an unlocked position.

Detailed Description

The present invention is further described with reference to the accompanying figures 1 through 5 and the detailed description, wherein like reference numerals refer to like parts, unless otherwise specified. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

The utility model provides a discovery after the people research relevant prior art's product, so the reliability of prior art's general air cock connector is poor, and easy card dies, life weak point etc. mainly because the apical axis is blocked or the card dies easily to lead to the operation not smooth or even unable operation, must lead to the user to increase the operating force degree or carry out unconventional operation when this kind of condition appears, and then accelerated the damage of product. Further research has found that the further reason for this problem is that the hardness of the steel balls and the mandrel used for clamping the mandrel in the prior art is high, while the hardness of the shell is relatively low and the wall thickness is thin, and in the case of a small contact surface, the shell is easily scratched or deformed to be clamped, and finally the clamping or deadlocking condition occurs. From this, utility model people has conceived the improvement scheme that the card of the area of contact of multiplicable casing held the apical axis to solve the above-mentioned problem that prior art exists.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. In addition, the connection may be for either a fixed or coupled or communicating function.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example one

As shown in fig. 1, fig. 2A and fig. 2B, the universal air faucet connector of the present embodiment includes a housing 1, an operating handle 2 pivoted to the top of the housing, a cylindrical plug 3, a top shaft 4, a movable slider assembly 5 and a rubber clamping member 6, which are sequentially disposed in the housing 1 from top to bottom; the side wall of the shell 1 is further provided with a connecting pipe part 12 for introducing compressed gas into a cavity 11 in the shell 1, the operating handle 2 can be switched between a locking state and a releasing state through pivoting operation, a first resetting part 7 capable of enabling the cylindrical plug body 3 to automatically reset is arranged between the cylindrical plug body 3 and the top shaft 4, the movable sliding block assembly 5 is provided with a second resetting part 8 capable of enabling the top shaft 4 to automatically reset, a roller pin 9 for clamping the top shaft 4 is further arranged between the movable sliding block assembly 5 and the top shaft 4, and in a clamping state, the roller pin 9 and the movable sliding block assembly 5 are in a line contact relation.

When the rubber clamping member 6 is pressed from the top by the movable slider assembly 5, the bottom and the peripheral wall are blocked by the housing 1, so that the rubber clamping member deforms inwards in the transverse direction, thereby achieving the air faucet clamping effect.

The operating handle 2 comprises a handle portion 21 and a pressing portion 22 located at one end of the handle portion 21, the pressing portion 22 is eccentrically pivoted to the pivoting portion 13 at the top of the housing 1 in combination with a pivot 23, and the pressing portion 22 corresponds to the top end of the cylindrical plug body 3. Preferably, the pivot 23 is a pin, the other end of the handle 21 is tilted upward to facilitate the operation, and the abutting surface 221 of the abutting portion 22 and the surface adjacent to the abutting surface are in smooth transition of an arc surface, so as to facilitate the switching of the states and reduce the wear.

The plunger 3 can reciprocate up and down in the housing 1, and the plunger 3 and the inner wall of the housing 1 are hermetically sealed, for example, by sealing elements 38 such as sealing rings sleeved outside the plunger 3.

As shown in fig. 1, 2A and 2B, the movable slider assembly 5 includes a cylindrical portion 51, two lug parts 53 extending upward along the cylindrical portion 51, and needle roller abutting portions 52 located on opposite sides of the two lug parts 53, the needle roller abutting portions 52 being flat surfaces. It should be noted that, in other embodiments, the needle roller interference portions 52 may also be directly provided on the inner side of the column portion 51 in pairs, without providing the two lug portions 53, as long as the corresponding portions of the inner side of the column portion 51 contacting the needle roller interference portions 52 are flat. In this embodiment, the lower end of the plunger body 3 is provided with two notch portions 33, the two notch portions 33 respectively match with the two lug portions 53, and the two lug portions 53 can enter or exit the two notch portions 33. The roller pins 9 are preferably round-head roller pins or flat-head roller pins, and are arranged on two opposite sides of the top shaft 4 in pairs, the axial direction of the roller pins 9 is perpendicular to the axial direction of the cylindrical part 51, and when the roller pins 9 are in close contact with the roller pin interference part 52, a line contact relationship is formed between the roller pins 9 and the cylindrical part. This structure is configured such that the needle roller interference portion 52 inside the cylindrical portion 51 and the needle rollers 9 are in line contact, and thus can bear a large interference pressure without causing scratching or deformation of the inside of the cylindrical portion 51, that is, without causing seizure or seizure in the case where the needle rollers 9 provide a sufficient clamping force to clamp the head shaft 4, thereby greatly prolonging the service life of the product. Further, this structure can achieve guiding and positioning effects by the cooperation of the two lug parts 53 and the two notch parts 33, so that stability and reliability of the relevant parts in relative movement can be enhanced. Moreover, the two notches 33 are arranged, so that the installation of the needle roller 9 and the assembly of the whole product are greatly facilitated.

As shown in fig. 2A and 2B, the movable slider assembly 5 further includes a liner 55 disposed inside the cylinder 51, the liner 55 is cylindrical and includes a liner upper segment 551 and a liner lower segment 552, an outer diameter of the liner upper segment 551 is equal to an inner diameter of the cylinder 51, an outer diameter of the liner lower segment 552 is smaller than the inner diameter of the cylinder 51, and a receiving cavity 553 is formed between an outer side of the liner lower segment 552 and the cylinder 51 for receiving the second restoring member 8. Through the size fit relation between the lining 55 and the adjacent components, the second restoring component 8 can be limited in a specific space, and the conditions of dislocation and the like in the process of converting the working state are avoided, so that the product can work more stably and reliably. In addition, the upper end surface of the lining 55 is an interference inclined surface 555 for jacking the roller pins 9, and the interference inclined surface 555 is high inside and low outside. This way the resetting of the needle 9 is facilitated, with respect to the case where the tip is plane.

As shown in fig. 1, 2A, and 2B, the top shaft 4 includes a top shaft upper section 41 and a top shaft lower section 42, the diameter of the top shaft upper section 41 is greater than that of the top shaft lower section 42, and the top shaft upper section 41 and the top shaft lower section 42 are in transition through a cone. The plunger 3 is provided with a top shaft accommodating cavity 31 with a downward opening along the axial direction, the top shaft accommodating cavity 31 at least can accommodate the top shaft upper section 41, and the inner diameter of the lining 55 corresponds to the inner diameter of the top shaft accommodating cavity 31. The first reset component 7 is located in the top shaft accommodating cavity 31, and two ends of the first reset component respectively abut against the bottom of the top shaft accommodating cavity 31 and the upper end surface of the top shaft 4. Therefore, the upper section 41 of the top shaft can be guided and limited, deviation in up-and-down movement is avoided, and stability and reliability of a product are improved. The first return component 7 and the second return component 8 are preferably springs, and other suitable elastic bodies such as elastic sheets can be used instead. When second reset device 8 adopts the spring, still be equipped with spring guide post 37 on the diapire that the apical axis held the chamber 31, apical axis upper segment 41 is equipped with the reset device that the opening is up and holds chamber 411, through spring guide post 37 guide effect with reset device holds chamber 411 limit action and mutually supports, can ensure the direction that the spring is flexible warp to can reliably smoothly work.

As shown in fig. 1, 2A and 2B, an end cap 10 is further disposed at the lower end of the housing 1, an end cap through hole 101 is disposed on the bottom wall of the end cap 10, a clamping cavity 61 with a downward opening is disposed at the lower section of the rubber clamping member 6, and the end cap through hole 101 corresponds to the clamping cavity 61, so that the air faucet can be smoothly inserted and removed. In addition, the end cover bottom wall around the end cover through hole 101 can provide a supporting function for the bottom contact position of the rubber clamping piece 6, the position of the rubber clamping piece 6 in the shell 1 can be more reliably maintained by adding the additional end cover 10, meanwhile, the strength of the lower end position of the shell 1 can be increased, the stability and the reliability of clamping can be ensured, and the product is not easy to damage.

The column part 51 with the tip that the rubber holder 6 contradicts each other can be the plane, also can be the unsmooth fitting surface of mutual matching, as shown in fig. 2A, fig. 2B, the lower part of column part 51 is equipped with the recess, the top of rubber holder be equipped with the boss that the recess matches, perhaps the recess with the boss set up the position and exchange, such cooperation structure can make the operation more reliable, more smooth and easy.

The following detailed description of the mutual matching relationship of the main components of the universal air faucet connector in different states when connecting different air faucets is made with reference to the accompanying drawings as follows:

as shown in fig. 3A, the cross-sectional structure of the universal air faucet connector is schematically illustrated when the universal air faucet connector is connected with an american air faucet and is in a locked state, at this time, the pressing portion 21 of the operating handle 2 presses the top end surface of the cylindrical plug body 3 to press the movable slider assembly 5, and presses the top shaft 4 downward through the mutual cooperation of the cylindrical plug body 3, the movable slider assembly 5 and the needle roller 9, at this time, the needle roller 9 is drawn toward the middle under the combined action of the cylindrical plug body 3 and the movable slider assembly 5 to clamp the top shaft upper section 41, the movable slider assembly 5 presses the rubber clamping member 6 under the action of the pressing portion 21, so that the rubber clamping member 6 deforms in the radial direction to clamp the american air faucet and the top shaft lower section 42, and the end of the top shaft lower section 42 pushes the valve core of the american air faucet, thereby inflating a tire and the like. As shown in fig. 3B, the cross-sectional structure of the universal air faucet connector and the american air faucet is schematically shown, but in a released state, at this time, the plunger 3 and the top shaft 4 are respectively reset under the action of the first reset component 7 and the second reset component 8, the movable slider assembly 5 is reset under the action of the rubber clamp 6, and under the thrust of the second reset component 8 and the self-gravity of the roller pin 9, the roller pin 9 naturally slides outward, so that the top shaft 4 is released, the top shaft 4 is enabled to be reset, and the rubber clamp 6 is also restored to a natural state, so that the american air faucet and the top shaft lower section 42 are released, at this time, the american air faucet can be conveniently removed.

As shown in fig. 4A, the cross-sectional structure of the universal air faucet connector is schematically illustrated when the universal air faucet connector is connected with a french air faucet and is in a locked state, at this time, the french air faucet is inserted and then jacks the top shaft 4, and the top shaft lower section 42 is thinner, so that the needle roller 9 does not apply a clamping force to the top shaft lower section 42, the pressing portion 21 of the operating handle 2 presses the top end surface of the cylindrical plug body 3 so as to press the movable slider assembly 5, and the top shaft 4 is pressed through the mutual cooperation of the cylindrical plug body 3, the movable slider assembly 5 and the needle roller 9, the movable slider assembly 5 presses the rubber clamping member 6 under the action of the pressing portion 21, so that the rubber clamping member 6 deforms in the radial direction to clamp the french air faucet, and the end portion of the top shaft lower section 42 pushes the valve core of the french air faucet, thereby inflating a tire and the like. As shown in fig. 4B, which is a schematic cross-sectional structural view of the universal air faucet connector and the french air faucet when the universal air faucet connector and the french air faucet are connected but in a released state, at this time, the cylindrical plug body 3 and the top shaft 4 are respectively reset under the action of the first resetting component 7 and the second resetting component 8, the movable slider assembly 5 is also reset under the action of the rubber clamping piece 6, the rubber clamping piece 6 is restored to a natural state, so as to release the french air faucet, and at this time, the french air faucet can be conveniently removed. As shown in fig. 4C, it is a schematic cross-sectional view of the universal air faucet connector and the french air faucet, and the operating handle 2 is in a half-locking and half-releasing state (i.e. in a state between the two states of locking and releasing), at this time, the deformation amount of the rubber clamping piece 6 is in an intermediate state, and thus the clamping force for the french air faucet is also in an intermediate state.

As shown in fig. 5A, which is a schematic cross-sectional view of a universal air faucet connector and an english air faucet when the universal air faucet connector is connected to the english air faucet and is in a locked state, the pressing portion 21 of the operating handle 2 presses the top end surface of the cylindrical plug 3 to press the movable slider assembly 5, and the top shaft 4 is pressed down through the mutual cooperation of the cylindrical plug 3, the movable slider assembly 5 and the needle roller 9, at this time, the needle roller 9 clamps the top shaft upper section 41, the movable slider assembly 5 presses the rubber clamping member 6 under the action of the pressing portion 21, so that the rubber clamping member 6 deforms along a radial direction to clamp the english air faucet, and the end portion of the top shaft lower section 42 presses the valve core of the english air faucet, so as to inflate a tire or the like. As shown in fig. 3B, the cross-sectional structure of the universal air faucet connector is schematically illustrated when the universal air faucet connector is connected with an english air faucet but is in a released state, at this time, the plunger 3 and the top shaft 4 are respectively reset under the action of the first resetting part 7 and the second resetting part 8, the movable slider assembly 5 is reset under the action of the rubber clamp 6, the needle roller 9 releases the top shaft 4, and the rubber clamp 6 returns to a natural state, so that the english air faucet is released, and at this time, the english air faucet can be conveniently removed.

It should be noted that, when the universal air nozzle connector is connected with an english air nozzle for inflation, the installation direction of the rubber clamping piece 6 in the housing 1 is different from the installation direction of the universal air nozzle connector when the universal air nozzle connector is connected with an american air nozzle/french air nozzle for inflation, and is upside down, that is, the clamping cavity 61 is upward when the universal air nozzle is connected with the english air nozzle for inflation, as shown in fig. 5A and 5B.

Example two

The present embodiment is different from the first embodiment mainly in that the bottom surface of the notch portion 33 is an inclined surface, the top surfaces of the two lug parts 53 are inclined surfaces, and the inclination of the bottom surface of the notch portion 33 and the inclination of the top surface of the lug part 53 are matched, so that they can be better attached to each other.

EXAMPLE III

The main difference between this embodiment and the first or second embodiment is that a limiting connection member is further disposed between the plunger body 3 and the movable sliding block assembly 5 to limit the reset height of the plunger body 3, so that the subsequent state switching operation of a user can be facilitated, and the operation experience of the user can be improved. As shown in fig. 1, the plunger body 3 is provided with a first limiting member mounting hole 36 for mounting the limiting connecting member, the movable sliding block assembly 5 is provided with a second limiting member mounting hole 56 for mounting the limiting connecting member, and after the limiting connecting member is mounted through the first limiting member mounting hole 36 and the second limiting member mounting hole 56, the relative position between the movable sliding block assembly 5 and the plunger body 3 can be limited, for example, the size of the second limiting member mounting hole 56 can be used for limiting the reset height of the plunger body 3.

Example four

The inflator of this embodiment is used for inflating tires and the like, and includes an inflator body and an air nozzle connector, where the air nozzle connector is a universal air nozzle connector as described in any one of the foregoing embodiments, and is connected to the inflator body through the connecting pipe portion.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific/preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. For those skilled in the art to which the present invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the present invention, and these alternatives or modifications should be considered as belonging to the protection scope of the present invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although the embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the application.

Claims (10)

1. A universal air tap connector is characterized by comprising a shell, an operating handle pivoted to the top of the shell, a columnar plug body, a top shaft, a movable sliding block assembly and a rubber clamping piece, wherein the columnar plug body, the top shaft, the movable sliding block assembly and the rubber clamping piece are sequentially arranged in an inner cavity of the shell from top to bottom;

a first resetting component capable of automatically resetting the columnar plug body is arranged between the columnar plug body and the top shaft, and a second resetting component capable of automatically resetting the top shaft is arranged on the movable sliding block assembly;

the movable sliding block assembly is provided with a sliding block assembly through hole for the lower end part of the top shaft to pass through, and the rubber clamping piece is provided with a clamping piece through hole for the lower end part of the top shaft to pass through and a clamping cavity with a downward opening;

a roller pin for clamping the top shaft is arranged between the top shaft and the movable sliding block assembly, and in a clamping state, the roller pin is in line contact with the inner wall of the movable sliding block assembly;

the operating handle can be mutually switched between two working states of locking and unlocking through pivoting operation.

2. The universal air tap connector as claimed in claim 1 wherein said movable slider assembly comprises a cylindrical portion and two opposing needle roller abutments on the inside of said cylindrical portion, said needle roller abutments being planar;

the roller pins are arranged on two opposite sides of the jacking shaft in pairs, the axial directions of the roller pins are perpendicular to the axial direction of the column part, and when the roller pins are in close contact with the roller pin abutting parts, a line contact relation is formed.

3. The universal air faucet connector as recited in claim 1, wherein the movable slider assembly comprises a post portion and two lug portions extending upwardly along the post portion, the two lug portions being disposed opposite each other and facing surfaces of the two lug portions are planar;

the columnar plug body is provided with two notch parts which are respectively matched with the two lug parts, and the two lug parts can enter or exit the two notch parts;

the needle rollers are arranged on two opposite sides of the jacking shaft in pairs, the axial directions of the needle rollers are perpendicular to the axial direction of the column part, and a linear contact relation is formed when the needle rollers are in close contact with the needle roller collision parts.

4. The universal air faucet connector as recited in claim 3, wherein the bottom surface of the notch portion is an inclined surface, the top surfaces of the two lug portions are inclined surfaces, and the bottom surface of the notch portion and the top surfaces of the lug portions are inclined to match each other so as to be attached to each other.

5. The universal air tap connector as claimed in any one of claims 2 to 4 wherein said movable slider assembly further comprises an inner liner disposed within said cylindrical body, said inner liner being cylindrical;

the inner liner comprises an upper inner liner section and a lower inner liner section, the outer diameter of the upper inner liner section is equal to the inner diameter of the cylindrical part, the outer diameter of the lower inner liner section is smaller than the inner diameter of the cylindrical part, and an accommodating cavity capable of accommodating the second resetting part is formed between the outer side of the lower inner liner section and the cylindrical part;

the upper end face of the lining is an abutting inclined face for jacking the roller pins, and the abutting inclined face is high inside and low outside.

6. The universal air faucet connector of claim 5, wherein a sealing member is further provided between the cylindrical plug body and the housing for sealing.

7. The universal gas nipple connector of claim 5, wherein said top shaft includes a top shaft upper section and a top shaft lower section, said top shaft upper section having a diameter greater than said top shaft lower section, said top shaft upper section and said top shaft lower section being in transition by a section of cone;

the columnar plug body is provided with a top shaft accommodating cavity with a downward opening along the axial direction, and the top shaft accommodating cavity can be used for accommodating at least the upper section of the top shaft;

the inner diameter of the lining is correspondingly consistent with the inner diameter of the top shaft accommodating cavity.

8. The universal air faucet connector as recited in claim 5, further comprising a limiting connection member disposed between the plug body and the movable slider for limiting the height of the plug body.

9. The universal air tap connector as claimed in any one of claims 1 to 4, wherein the lower end of the housing is further provided with an end cap, and the bottom wall of the end cap is provided with an end cap through hole;

the end cover through hole corresponds to the clamping cavity.

10. An inflator characterized by comprising an inflator body and a nozzle connector, the nozzle connector being the general-purpose nozzle connector according to any one of claims 1 to 9, connected to the inflator body through the connecting tube portion.

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