Rotating shaft module for firearms

Abstract

The utility model discloses a rotating shaft module for firearms, which is convenient to mount and dismount. A rotating shaft module for firearms comprises a shaft sleeve, a shaft mortise and tenon and a rotating shaft, a stepped hole is formed in the shaft sleeve, the shaft mortise and tenon is in clearance fit with the large-diameter section of an inner hole of the shaft sleeve, a clamping shaft is arranged on the shaft mortise and tenon in the radial direction, an upper groove and a side groove are formed in the shaft sleeve and correspond to the clamping shaft, the upper groove is communicated with the side groove, the clamping shaft enters the upper groove, and the clamping shaft enters the side groove. The side face groove is used for being matched with the clamping shaft and limiting the axial limit position of the shaft clamping tenon, the rotating shaft is in clearance fit in the small-diameter section of an inner hole of the shaft sleeve, and a limiting head is arranged at one end of the rotating shaft, located in the large-diameter section of the inner hole of the shaft sleeve and limiting the axial position of the rotating shaft. The other end of the rotating shaft extends out of the shaft sleeve, and the end, extending out of the shaft sleeve, of the rotating shaft is used for being connected with a rotating component of a firearm.

Description

Technical Field

[0001] The utility model relates to the technical field of firearms, in particular to a rotating shaft module for firearms. Background Art

[0002] The rotating shaft is a common connection method in the mechanical field. Generally, two independent parts are connected by a shaft to achieve relative rotation between the parts. However, for special products with small volume, it is not easy to achieve because the shaft connection usually requires a through-shaft hole. For this reason, the present invention summarizes practical experience and adopts a modular design concept to design the rotating body, shaft and other parts as independent functional modules to achieve the free rotation of the rotating body. At the same time, the designed shaft can be installed on the product body by axial pressing. When disassembling, just press one end, and the design of a through-shaft hole is no longer required, which not only facilitates the structural design, but also simplifies the processing technology.

[0003] Taking the ejection window baffle of a firearm as an example, the firearm product must have an ejection window baffle in its structure. From the perspective of structural design and process, the part should not be designed to be connected by a through-axis hole. In terms of use, the ejection window baffle must be easy to install and disassemble. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a rotating shaft module for firearms, which is easy to install and disassemble.

[0005] The purpose of the utility model is achieved in this way:

[0006] A rotating shaft module for a firearm comprises a shaft sleeve, a shaft tenon and a rotating shaft. The interior of the shaft sleeve is a stepped hole, the shaft tenon is clearance-fitted in the large-diameter section of the inner hole of the shaft sleeve, the shaft tenon is radially provided with a clamping shaft, an upper groove and a side groove are provided on the shaft sleeve corresponding to the clamping shaft, the upper groove and the side groove are connected, the upper groove is for the clamping shaft to enter, the side groove is used to cooperate with the clamping shaft, the side groove defines the axial limit position of the shaft tenon, the rotating shaft is clearance-fitted in the small-diameter section of the inner hole of the shaft sleeve, a limit head is provided at one end of the rotating shaft, the limit head is located in the large-diameter section of the inner hole of the shaft sleeve, the limit head defines the axial position of the rotating shaft, an shaft spring is provided between the shaft tenon and the limit head of the rotating shaft, the other end of the rotating shaft extends out of the shaft sleeve, and the end of the rotating shaft extending out of the sleeve is used to connect the rotating part of the firearm.

[0007] Preferably, one end of the shaft tenon extends out of the shaft sleeve.

[0008] Preferably, the side groove is oblate.

[0009] Preferably, the sleeve is located at the ejection window of the firearm, and one end of the rotating shaft extending out of the sleeve is connected to the ejection window baffle.

[0010] Due to the adoption of the above technical solution, the utility model has the following beneficial effects:

[0011] 1. The rotating shaft module has independent functions. The present invention adopts a modular design concept and designs a rotatable and easy-to-install shaft into a functional module with independent functions to form a standard functional module. It can be used in various occasions through the changes in different structural forms of the shaft sleeve 3. It is a rotating shaft that can be installed and disassembled without the need for a through-shaft hole design.

[0012] 2. The rotating axis module has a simple and compact structure and is easy to install and disassemble, especially for small products such as firearms. It is convenient for structural design and simplifies the processing technology, making it more practical.

[0013] 3. The rotating shaft module has good concealment, a concealed design for the field appearance, and a good product camouflage effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the general assembly of the present invention;

[0015] Figure 2 It is a schematic diagram of the shaft sleeve of the present invention;

[0016] Figure 3 This is a schematic diagram of the shaft tenon of the present invention;

[0017] Figure 4 It is a schematic diagram of the rotating axis of the present invention;

[0018] Figure 5 The present invention is applied to a firearm ejection window baffle.

[0019] Reference numerals

[0020] In the attached drawings, 1-axis tenon, 2-axis spring, 3-axis sleeve, 4-rotating axis;

[0021] 301-upper groove, 302-side groove, 303-step hole. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] A rotating shaft module for firearms comprises a shaft sleeve 3, a shaft tenon 1 and a rotating shaft 4. The interior of the shaft sleeve 3 is a stepped hole 303. The shaft tenon 1 is clearance-fitted in the large-diameter section of the inner hole of the shaft sleeve 3. A clamping shaft is radially arranged on the shaft tenon 1. An upper groove 301 and a side groove 302 are arranged on the shaft sleeve 3 corresponding to the clamping shaft. The upper groove 301 and the side groove 302 are connected. The upper groove 301 is for the clamping shaft to enter. The side groove 302 is used to cooperate with the clamping shaft. The side groove 302 defines the axial limit position of the shaft tenon 1. The side groove 302 is oblate, and the arcs at both ends are used for limiting. The rotating shaft 4 is loosely fitted in the small diameter section of the inner hole of the sleeve 3, a limit head is provided at one end of the rotating shaft 4, the limit head is located in the large diameter section of the inner hole of the sleeve 3, the limit head limits the axial position of the rotating shaft 4, an axis spring 2 is provided between the axis tenon 1 and the limit head of the rotating shaft 4, the other end of the rotating shaft 4 extends out of the sleeve 3, and the end of the rotating shaft 4 extending out of the sleeve 3 is used to connect the rotating part of the firearm.

[0024] One end of the shaft tenon 1 extends out of the shaft sleeve 3, and the end of the shaft tenon 1 extending out of the shaft sleeve 3 is used to manually press the shaft tenon 1, and then manually rotate the shaft to make the shaft enter the upper groove 301 from the side groove 302 for easy disassembly.

[0025] The structure of a rotating shaft module for firearms of the present invention is shown in FIG. Figure 1 It is composed of an axis tenon 1, an axis spring 2, an axis sleeve 3 and a rotating axis 4. In this embodiment, the axis sleeve 3 is located at the ejection window of the firearm (molded as one piece), and one end of the rotating axis 4 extending out of the axis sleeve 3 is connected to the ejection window baffle.

[0026] The shaft sleeve 3 has a stepped hole 303 inside and an upper groove 301 and a side groove 302 at one end; the shaft tenon 1 is a "7"-shaped structure; and the rotating shaft 4 is a stepped shaft with one large and one small.

[0027] The shaft tenon 1, shaft spring 2, and rotating shaft 4 are installed in the shaft sleeve 3. During the assembly process, the shaft tenon 1 is installed from the upper groove 301 of the shaft sleeve 3, and after it is in place, it is rotated to the side groove 302 to play a limiting role; after the rotating shaft 4 is installed, it is limited by the stepped hole 303 in the shaft sleeve 3.

[0028] The shaft spring 2 is placed between the shaft tenon 1 and the rotating shaft 4 to apply force to both ends. The shaft tenon 1 and the rotating shaft 4 can be pressed toward the middle within a certain range.

[0029] After assembly, the rotating shaft 4 can freely rotate in the circumferential direction in the sleeve 3; the assembled components can freely rotate in the circumferential direction.

[0030] Finally, it should be understood by those skilled in the art that different products can be formed by designing the outer structure of the sleeve, such as the ejection window baffle ( Figure 5The above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A rotating shaft module for firearms, characterized in that: It includes a shaft sleeve, a shaft tenon, and a rotating shaft. The interior of the shaft sleeve is a stepped hole, and the shaft tenon is clearance-fitted in the large-diameter section of the inner hole of the shaft sleeve. The shaft tenon is radially provided with a clamping shaft, and the shaft sleeve is provided with an upper groove and a side groove corresponding to the clamping shaft. The upper groove and the side groove are connected, and the upper groove is for the clamping shaft to enter, and the side groove is used to cooperate with the clamping shaft. The side groove limits the axial limit position of the shaft tenon, and the rotating shaft is clearance-fitted in the small-diameter section of the inner hole of the shaft sleeve. A limit head is provided at one end of the rotating shaft, and the limit head is located in the large-diameter section of the inner hole of the shaft sleeve. The limit head limits the axial position of the rotating shaft, and an shaft spring is provided between the shaft tenon and the limit head of the rotating shaft. The other end of the rotating shaft extends out of the shaft sleeve, and the end of the rotating shaft extending out of the sleeve is used to connect the rotating part of the firearm.

2. A firearm rotating shaft module according to claim 1, characterized in that: One end of the shaft tenon extends out of the shaft sleeve.

3. The firearm rotating shaft module according to claim 1, characterized in that: The side groove is oblate.

4. The firearm rotating shaft module according to claim 1, characterized in that: The shaft sleeve is located at the ejection window position of the firearm, and one end of the rotating shaft extending out of the shaft sleeve is connected to the ejection window baffle.

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