Patent Grant
10801805
A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to any reproduction by anyone of the patent disclosure, as it appears in the United States Patent and Trademark Office patent files or records, but otherwise reserves all copyright rights whatsoever.
The present invention relates to an air flow adjusting device of air gun, and more particularly to an air flow adjusting device of air gun, which can adjust the air flow rate by operating an adjusting knob inside a piston seat from the outside of the piston seat without any tool.
Most air guns nowadays use gas as the firing force of the bullet (commonly known as BB bomb), but in the intake structure of the conventional air gun, the gas flow rate of each firing stays the same; that is, the moving distance of an air separation valve (elastic plug block of the present invention) is fixed, so that the initial firing speed is stable. However, in view of different play methods and different needs of the users, air guns have appeared under the innovation of the industry to adjust different gas flow rate, but after many repeated fires, it is inevitable that the initial firing speed after adjustment will change due to vibration. In view of this, some improved air gun was invented, such as TW Pat. No. M534812, which tried to solve some of the issues.
The present invention mitigates and/or obviates the aforementioned disadvantages.
The primary objective of the present invention is to provide an air flow adjusting device of air gun which can solve the drawbacks of conventional technologies, especially in adjusting the initial firing speed.
The air flow adjusting device of air gun of the present invention comprises a piston seat, a piston sleeve and an adjusting assembly. The piston seat is internally defined with an air flow channel having an air inlet at a lower part thereof and an elastic plug block corresponding to the air inlet. The two sides of the air flow channel are respectively an air outlet and a closed opening. The piston sleeve has an end head at one end thereof and a rod body at the other end thereof. The rod body is inserted into the air flow channel via the closed opening, and the end head is located outside the closed opening. The rod body has a base and an external threaded portion. The adjusting assembly is located in the air flow channel of the piston seat and is connected between the rod body of the piston sleeve and the elastic plug block. It is characterized in that: the adjusting assembly is provided with an adjusting knob having an internal threaded portion and a locking seat for insertion of the rod body. The external threaded portion of the rod body is threaded with the internal threaded portion of the adjusting knob. A spring is provided between the locking seat and the base of the rod body. One end of the adjusting knob is locked to the locking seat. By rotating the adjusting knob, the locking position of the adjusting knob and the locking seat can be changed relatively, and the total length of the piston sleeve and the adjusting assembly can be adjusted; that is, the stroke position of the elastic plug block can be adjusted, so as to adjust the air flow rate.
The adjusting knob has a wiping portion provided on the surface thereof, and the piston seat is defined with at least one slot corresponding to the wiping portion, so that the adjusting knob can be rotated only by operating the wiping portion only with finger(s) via the slot.
In addition, the adjusting knob has a plurality of concave teeth arranged thereon relative to the end surface of the locking seat, and the locking seat correspondingly has at least one protruding tooth arranged thereon. The elasticity of the spring makes the protruding tooth engaged with the concave teeth so as to lock the adjusting knob in the locking seat. When rotating the adjusting knob, the protruding tooth can be changed and engaged with a different concave tooth.
Moreover, it is preferably to provide two symmetrical protruding teeth.
Therefore, it can be seen that the present invention is able to adjust the air flow rate by operating the wiping portion of the adjusting knob only with finger(s) via the slot, which solves the drawbacks of the operation of conventional technologies.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiments in accordance with the present invention.
Still further objects and advantages will become apparent from a consideration of the ensuing description and drawings.
These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.
The following description is disclosed to enable any person skilled in the art to make and use the present invention. Preferred embodiments in the following descriptions are to give examples only. Those skilled in the art can think of other obvious modifications. The general principles defined in the following description would be applied to other embodiments, alternatives, modifications, equivalents, and applications without departing from the spirit and scope of the present invention.
Referring to
The piston seat 1 (as shown in
The piston sleeve 2 (as shown in
The adjusting assembly 3 (as shown in
The adjusting knob 31 comprises a wiping portion 313 arranged on the surface thereof, and the slot 16 of the piston seat 1 is adapted to correspond to the wiping portion 313 (as shown in
By the above-mentioned arrangements, the initial firing speed is determined by the air flow rate. When the initial firing speed is adjusted (that is, when the air flow rate is adjusted), as long as the air flow adjusting device C is drawn a distance from the housing A (as shown in
According to the above-mentioned structure, it can be seen that the present invention allows the user to adjust the initial firing speed by operating the wiping portion 313 only with fingers, which avoids the drawbacks rendered by the requirements of tool operations for the conventional technologies.
While we have shown and described various embodiments in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.
It will thus be seen that the objects of the present invention have been fully and effectively accomplished. The embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 108215017 U | Nov 2019 | TW | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 20110146647 | Hu | Jun 2011 | A1 |
| 20150013656 | Priestley | Jan 2015 | A1 |
| 20170153081 | Hu | Jun 2017 | A1 |
