Switchable portable inflator pump pressing type air nozzle and portable inflator pump

Abstract

The utility model relates to a switchable portable inflator pump push type air tap and portable inflator pump, the air tap comprises a mouthpiece sleeve and a sealing cover, an air cavity is formed in the mouthpiece sleeve in a penetrating manner, the sealing cover is detachably assembled with the mouthpiece sleeve at the head part of the air cavity, the sealing cover is provided with an air port, the air tap also comprises a mouthpiece core arranged in the air cavity, and the mouthpiece core is provided with an air outlet. The two ends of the mouthpiece core are a first receiving end and a second receiving end which are matched with different types of valve cores, the installation direction of the mouthpiece core can be changed so that the first receiving end and the second receiving end can be switched and controlled to be matched and correspond to the air port, an air channel is arranged between the first receiving end and the second receiving end, and the air channel is communicated with the air port and the air cavity. The two ends of the nozzle connecting core of the air nozzle are matched with the valve cores of different models respectively, the first receiving end or the second receiving end is adjusted to correspond to the air port according to the actual model of the valve core, the air nozzle can be connected with the American valve core and the manufactured valve core, the number of the improved air nozzle components is small, switching is easy, and the components do not need to be detached and stored independently and are not prone to being lost.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzles of portable air pumps, in particular to a nozzle adapted to American and French valve cores. Background Art

[0002] When replenishing air pressure for vehicle tires, an air pump needs to use a corresponding nozzle to cooperate with the valve core on the tire. The common tire valve cores are American or French. Therefore, air pumps usually need to be equipped with American nozzles and French nozzles for easy switching. However, this has the disadvantages of cumbersome operation and inconvenience in use. The utility model patent with application number 2022233172795 provides a new air pump nozzle solution. The nozzle itself is a French nozzle, and an American nozzle is installed inside it. By disassembling and assembling the American nozzle, it can be adapted to American or French valve cores for use. However, when using the French nozzle, the disassembled American nozzle is prone to being lost. Therefore, there is room for improvement in the existing air pump nozzles. Summary of the Utility Model

[0003] The technical problem solved by the present disclosure is to provide an improved nozzle for a portable air pump, which is convenient to switch and not prone to losing accessories; and to provide a portable air pump with such a nozzle.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a switchable push-button nozzle for a portable air pump. The nozzle includes a nozzle sleeve and a sealing cover. An air cavity is formed through the nozzle sleeve. The sealing cover is detachably assembled with the nozzle sleeve at the head of the air cavity. The sealing cover is provided with an air port. The nozzle further includes a nozzle core installed in the air cavity. The two ends of the nozzle core are respectively a first connection end and a second connection end that can be adapted to valve cores of different models. The nozzle core can be adjusted in the installation direction to switch and control the adaptation and correspondence between the first connection end, the second connection end and the air port. An air channel is provided between the first connection end and the second connection end. The air channel connects the air port and the air cavity.

[0005] For a switchable push-button nozzle for a portable air pump as described above, the first connection end is adapted to an American valve core, and the second connection end is adapted to a French valve core.

[0006] For a switchable push-button nozzle for a portable air pump as described above, the radial dimension of the first connection end is smaller than that of the second connection end; the air channel penetrates through the second connection end and extends along the surface of the first connection end after passing through the inner end wall of the second connection end.

[0007] A switchable portable inflator push-type nozzle as described above, wherein the side wall of the sealing cover protrudes into the air chamber to form a limiting flange, and a first supporting step is formed in the middle of the air chamber; the nozzle core is inserted into the air chamber, and the second receiving end is clamped and defined by the limiting flange and the first supporting step, and the first receiving end is correspondingly received in the air port or the tail of the air chamber.

[0008] A switchable portable inflator push-type nozzle as described above, wherein a second supporting step is provided at the head of the air chamber, and the sealing cover is installed at the second supporting step.

[0009] A switchable portable inflator push-type nozzle as described above, wherein the sealing cover is assembled with the nozzle sleeve by a tight fit, a snap fit or a threaded structure.

[0010] A switchable portable inflator push-type nozzle as described above, wherein an external thread or a snap fit is provided at the tail end of the nozzle sleeve.

[0011] A portable inflator, wherein the inflator is configured with a nozzle as described in any one of the preceding items.

[0012] Advantages of the present disclosure: The two ends of the nozzle core of the nozzle are respectively adapted to valve cores of different models. According to the actual valve core model, the first receiving end or the second receiving end can be adjusted to correspond to the air port. The nozzle has few components, simple switching, and the components do not need to be disassembled and stored separately, and are not easily lost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Some specific embodiments of the present invention will be described in detail below in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale.

[0014] In the drawings:

[0015] Figure 1 is a schematic diagram of the first state (American standard nozzle) of the nozzle of the present invention;

[0016] Figure 2 is an exploded schematic diagram of the first state of the nozzle of the present invention;

[0017] Figure 3 is a sectional view of the first state of the nozzle of the present invention;

[0018] Figure 4 is a sectional view of the nozzle sleeve in the first state of the nozzle of the present invention;

[0019] Figure 5 is a schematic diagram of the nozzle core in the first state of the nozzle of the present invention;

[0020] Figure 6 It is a cross-sectional schematic diagram of the nozzle core of the utility model in state 1 of the gas nozzle;

[0021] Figure 7 This is a schematic diagram of the utility model's gas nozzle in a state of use;

[0022] Figure 8 This is a schematic diagram of the explosion of the gas nozzle of the utility model in state 2 (French gas nozzle);

[0023] Figure 9 This is a schematic cross-sectional view of the second state of the gas nozzle of the utility model;

[0024] Figure 10 This is a schematic diagram of the second use state of the gas nozzle of the utility model;

[0025] The symbols in the figure are explained as follows:

[0026] 1. nozzle sleeve; 100. air cavity; 101. first supporting step; 102. second supporting step; 2. sealing cover; 200. air port; 201. limiting flange; 3. nozzle core; 300. air channel; 301. first connecting end; 302. second connecting end; 3020. (second connecting end) inner end wall. DETAILED DESCRIPTION

[0027] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0028] Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used in this disclosure should be the common meanings understood by people with ordinary skills in the field to which the utility model belongs.

[0029] As used in this disclosure, words such as "first", "second" and the like do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a", "an" or "the" do not denote a quantity limitation, but mean that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0030] Refer to the appendix Figures 1-10 , shown is a switchable portable inflator push-type nozzle. The nozzle includes a nozzle sleeve 1 and a sealing cover 2. An air cavity 100 is formed through the nozzle sleeve 1. The sealing cover 2 is detachably assembled with the nozzle sleeve 1 at the head of the air cavity 100, and the sealing cover 2 is provided with an air port 200. The nozzle further includes a nozzle core 3 installed in the air cavity 100. The two ends of the nozzle core 3 are respectively a first receiving end 301 and a second receiving end 302 that can be adapted to different types of valve cores. The nozzle core 3 can be adjusted in the installation direction to switch and control the adaptation and correspondence between the first receiving end 301, the second receiving end 302 and the air port 200. An air channel 300 is provided between the first receiving end 301 and the second receiving end 302. The air channel 300 communicates the air port 200 with the air cavity 100.

[0031] The nozzle sleeve 1 is usually made of metal materials such as brass and aluminum alloy. Its shape is cylindrical. An air cavity 100 is formed through it from head to tail. The radial dimension of the head is larger to have enough space to install the nozzle core 3. The radial dimension of the tail is smaller. The tail is provided with an external thread or a snap structure to stably connect with the inflator. The nozzle core 3 is also made of brass or aluminum alloy, or can be made of a plastic material with good heat resistance, such as nylon 66 + 33% glass fiber. The two ends of the nozzle core 3 are in different shapes for adapting to different types of valve cores. Usually, the two ends are respectively adapted to American standard valve cores and French standard valve cores. The sealing cover 2 can be made of nitrile rubber or silica gel that can withstand temperatures above 150°C. It is generally circular and is detachably connected to the nozzle sleeve 1 by means of tight fitting, threaded structure or snap, etc., and covers the head end of the air cavity 100. An air port 200 is opened in the middle to facilitate the docking of the internal nozzle core 3 with the valve core and input the air flow.

[0032] Refer to the appendix Figures 2-3, Figures 8-9, during use, adjust the installation direction of the nozzle core 3 according to the valve core to be paired. For example, if the valve core is a model adapted to the first connection end 301, insert the nozzle core 3 into the air cavity 100 with the first connection end 301 facing the air port 200, and the second connection end 302 facing the tail of the air cavity 100. Then install the sealing cover 2 on the nozzle sleeve 1. If the valve core is a model adapted to the second connection end 302, open the sealing cover 2, reverse the direction of the nozzle core 3 and then insert it into the air cavity 100 so that the second connection end 302 faces the air port 200 and the first connection end 301 faces the tail of the air cavity 100. Then install the sealing cover 2 again. In the above installation state, the air passage 300 in the nozzle core 3 always remains unobstructed. When the air pump injects air pressure into the tire, the air flow flows from the tail of the air cavity 100 to the air passage 300, and finally flows from the air port 200 to the valve core and enters the tire.

[0033] By reversing the installation direction of the nozzle core 3, switching and pairing with different valve cores can be achieved. The structure of the air nozzle is simplified, and the operation is more convenient. There is no need to store the disassembled components when inflating different valve cores, effectively avoiding the phenomenon of component loss.

[0034] In some embodiments, the first connection end 301 is adapted to the American standard valve core, and the second connection end 302 is adapted to the French standard valve core. When the air pump inflates the tire, the air nozzle is connected to the air pump through the tail of the nozzle sleeve 1. Refer to the appendix Figure 7 , if the tire has an American standard valve core, install the first connection end 301 of the nozzle core 3 towards the air port 200 of the sealing cover 2. Refer to the appendix Figure 10 , if the tire has a French standard valve core, install the second connection end 302 of the nozzle core 3 towards the air port 200 of the sealing cover 2. The air pump outputs air pressure towards the air nozzle, enters the air passage 300 of the nozzle core 3 from the tail of the air cavity 100, and the valve core of the tire is opened by the first connection end 301 or the second connection belt at the air port 200, so that the air flow can flow from the air port 200 to the valve core and then enter the tire.

[0035] Refer to the appendix Figures 5-6, to be adapted to American valve cores and French valve cores, the radial dimension of the first receiving end 301 is smaller than that of the second receiving end 302. That is, the nozzle core 3 has a small end (the first receiving end 301) and a large end (the second receiving end 302). The large end, i.e., the second receiving end 302, has an exposed inner end wall 3020. The air passage 300 penetrates through the second receiving end 302 and exits through the inner end wall 3020 of the second receiving end 302, and then extends along the surface of the first receiving end 301. Specifically, a chamber is formed inside the second receiving end 302. One end of the chamber opposite to the inner end wall 3020 forms a chamber opening, and a plurality of hole positions communicating with the chamber are formed on the inner end wall 3020. And a plurality of groove bodies corresponding to the hole positions are formed on the surface of the first receiving end 301, thereby constituting the air passage 300.

[0036] In some embodiments, the side wall of the sealing cover 2 protrudes into the air cavity 100 to form a limiting flange 201, and a first supporting step 101 is formed in the middle of the air cavity 100; the nozzle core 3 is inserted into the air cavity 100, and the second receiving end 302 is clamped and limited by the limiting flange 201 and the first supporting step 101, and the first receiving end 301 is correspondingly received in the air port 200 or the tail of the air cavity 100.

[0037] In this embodiment, the radial dimension of the middle part of the air cavity 100 is increased compared with the tail of the air cavity 100 to form a stepped structure, and the bottom of the sealing cover 2 protrudes compared with the side wall of the middle part of the air cavity 100 to form a flange structure. Open the sealing cover 2 to expose the chamber opening at one end of the air cavity 100, insert the nozzle core 3 into the air cavity 100, make the second receiving end 302 abut against the first supporting step 101, and then install the sealing cover 2 to the head of the air cavity 100 and abut against the second receiving end 302. Thus, the second receiving end 302 is clamped between the limiting flange 201 and the first supporting step 101. And the first receiving end 301 is received in the air port 200 or the tail of the air cavity 100. If the required adaptation is for an American valve core, the first receiving end 301 is received in the air port 200; if the adaptation is for a French valve core, the first receiving end 301 is received in the tail of the air cavity 100.

[0038] In some embodiments, a second supporting step 102 is provided at the head of the air cavity 100, and the sealing cover 2 is installed at the second supporting step 102. Specifically, the radial dimension of the head of the air cavity 100 increases, so that a second supporting step 102 is formed at the connection between the head and the middle part of the air cavity 100. The sealing cover 2 is installed on the head of the air cavity 100 and abuts against the second supporting step 102. At the same time, the bottom of the sealing cover 2 extends radially inwards beyond the second supporting step 102 to form a limiting flange 201 in the air cavity 100. An internal thread can be provided on the head of the air cavity 100, and an external thread is provided on the sealing cover 2. The sealing sleeve is screwed onto the head of the air cavity 100. The cooperation between the sealing cover 2 and the head of the air cavity 100 can also be achieved by means of buckles, tight fits, etc.

[0039] A portable inflator is provided, and the inflator is configured with a nozzle as described in any one of the preceding items. When the inflator is used to inflate different tires, the installation direction of the connecting nozzle core 3 in the nozzle can be adjusted according to the valve core model of the tire. The structure of the nozzle is simplified, which is beneficial to reducing the production cost, simplifying the operation, and effectively avoiding the phenomenon of component loss.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes, combinations and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. A switchable portable air pump push-type air nozzle, the air nozzle comprises a nozzle cover and a sealing cover, an air cavity is formed through the nozzle cover, the sealing cover is detachably assembled with the nozzle cover at the head of the air cavity, the sealing cover is provided with an air port, and is characterized in that: The air nozzle also includes a nozzle core installed in the air cavity, and the two ends of the nozzle core are respectively a first connecting end and a second connecting end that can be adapted to different types of valve cores. The installation direction of the nozzle core can be changed to switch and control the first connecting end, the second connecting end and the air port to adapt to each other. An air channel is set between the first connecting end and the second connecting end, and the air channel connects the air port and the air cavity.

2. A switchable portable air pump push-type air nozzle as claimed in claim 1, characterized in that: The first connecting end is adapted to a US-made valve core, and the second connecting end is adapted to a French-made valve core.

3. A switchable portable air pump push-type air nozzle as claimed in claim 2, characterized in that: The radial dimension of the first connecting end is smaller than that of the second connecting end; The air channel passes through the second connecting end, passes through the inner end wall of the second connecting end, and extends along the surface of the first connecting end.

4. A switchable portable air pump push-type air nozzle as claimed in claim 2, characterized in that: The side wall of the sealing cover protrudes into the air cavity to form a limiting flange, and a first supporting step is formed in the middle of the air cavity; The nozzle core is inserted into the air cavity, the second connecting end is clamped and limited by the limiting flange and the first supporting step, and the first connecting end is correspondingly accommodated in the air port or the tail of the air cavity.

5. A switchable portable air pump push-type air nozzle as claimed in claim 4, characterized in that: The head of the air cavity is provided with a second supporting step, and the sealing cover is installed at the second supporting step.

6. A switchable portable air pump push-type air nozzle as claimed in claim 5, characterized in that: The sealing cover is assembled with the nozzle sleeve by a tight fit, a snap fit or a threaded structure.

7. A switchable portable air pump push-type air nozzle as claimed in claim 6, characterized in that: The tail end of the mouthpiece sleeve is provided with an external thread or a buckle.

8. A portable air pump, characterized in that: The air pump is equipped with an air nozzle as described in any one of claims 1-7.

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