CN212431919U - Heat shield quick detach fixing device of firearms - Google Patents
Heat shield quick detach fixing device of firearms Download PDFInfo
- Publication number
- CN212431919U CN212431919U CN202021086418.6U CN202021086418U CN212431919U CN 212431919 U CN212431919 U CN 212431919U CN 202021086418 U CN202021086418 U CN 202021086418U CN 212431919 U CN212431919 U CN 212431919U
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- heat shield
- barrel
- groove
- fixing
- heat
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Abstract
The utility model discloses a heat shield quick detach fixing device of firearms belongs to firearms apparatus technical field. A flat groove is arranged at the rear end of the top of the fixed seat; the top thread of the casing is screwed into a limit screw of the heat shield; the top of the heat shield is provided with a Picatinny guide rail, the front end of the heat shield is provided with a positioning block, and the cross section of the positioning block is the same as that of the flat groove of the fixing seat and slightly smaller than the depth of the flat groove. The rear end of the heat shield is provided with a U-shaped limiting groove, the U-shaped limiting groove is inserted into a heat shield limiting screw rod, and the rear end of the heat shield is limited in the up-down, left-right direction at the moment; the barrel component is arranged in the receiver, the positioning block at the front end of the heat shield is inserted into the flat groove of the fixing seat, after the barrel fixing nut is screwed, the front and back directions of the heat shield are limited, the heat shield is installed, otherwise, the heat shield can be disassembled, and therefore the purpose of installing and disassembling the heat shield under the condition that no tool is used and any part is disassembled is achieved.
Description
Technical Field
The utility model relates to a heat shield quick detach fixing device of firearms belongs to firearms apparatus technical field.
Background
At present, most firearms heat shields on the market are fixed by screws. The front end of the heat shield is arranged on the fixed seat through two screws, the middle part of the heat shield is clamped through the spring piece sleeved on the barrel, when the heat shield needs to be replaced due to aging and external force damage or the gun needs to be maintained and disassembled, the screws need to be screwed, and the heat shield can be disassembled after the spring piece is extruded by an auxiliary tool. In the installation, because the heat shield utilizes the spring leaf cover on the barrel, often rotate easily and leak the space narrow and small outward in the installation, lead to the operator hardly to fix current heat shield middle part, increased and maintained the assembly, dismantled the degree of difficulty, bring serious inconvenience for the operator.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects existing in the prior art, the utility model provides a heat shield quick-release fixing device of a firearm. In the process of installation and disassembly, any screw does not need to be screwed, the operation can be completed through one-step action, and the quick assembly and disassembly are realized. Meanwhile, the Picatinny guide rail is additionally arranged above the heat shield, so that firearm accessories can be flexibly and reasonably arranged on the firearm, limited space is reasonably utilized, and the tactical performance of the firearm is improved.
The utility model provides a technical scheme that its technical problem adopted is: a quick-release fixing device for a heat shield of a firearm comprises a fixing seat, the heat shield, a receiver, a magazine tube, a barrel fixing nut and a barrel. The fixing seat is riveted on the gun barrel, the gun barrel and the magazine pipe are arranged at the front end of the cartridge case, the gun barrel is arranged at the top, the magazine pipe is arranged at the bottom, the heat-proof cover limited and fixed by the fixing seat and the cartridge case is arranged above the gun barrel, and the barrel is screwed to fix the nut to realize assembly. The barrel sleeve hole of the fixing seat is provided with a flat groove on the rear end face of the top of the barrel sleeve hole, a heat shield limiting screw is screwed in the top of the magazine in a threaded manner, a positioning block is fixedly connected to the front end of the heat shield, the cross section of the positioning block is the same as that of the flat groove of the fixing seat, the length of the positioning block is slightly smaller than the depth of the flat groove, and an inclined plane is guided on each side of the end face of the flat groove. The rear end of the heat shield is provided with a U-shaped limiting groove, and the root end of the U-shaped limiting groove is provided with an inclined plane. The top of the heat shield is provided with a Picatinny guide rail, the heat shield is inserted on a threaded rod of a screw through a U-shaped limiting groove and is pressed by a nut at the top end of the heat shield, the upper, lower, left and right directions of the rear end of the heat shield are limited, when the fixing seat is sleeved on the barrel and the magazine tube, the flat groove of the heat shield is sleeved on a positioning block of the heat shield, the upper, lower, left and right directions of the front end of the heat shield are limited, when the fixing seat is fixed after the barrel fixing nut is screwed, the front and back directions of the heat shield are limited at the same time, the heat shield is installed under the condition that any screw does not need to be disassembled, otherwise, only.
The threaded rod of the limit screw of the heat shield is screwed into the casing, and the distance between the bottom surface of the top cap body and the casing is equal to the wall thickness of the plate bodies on two sides of the U-shaped limit groove of the heat shield.
The utility model has the advantages that: the problem of current firearms heat shield assembly dismantlement difficulty is solved, a firearms heat shield quick detach fixing device is provided, the installation dismantlement in-process need not to twist soon any screw, and one step of action can be accomplished the operation, realizes rapid Assembly, and is more high-efficient. The heat shield is additionally provided with the Picatinny guide rail, so that accessories such as a white light sighting telescope, a night vision sighting telescope, a tactical lamp, a laser red spot sighting device, a camera and the like can be flexibly and reasonably arranged on the gun, the limited space is reasonably utilized, and the tactical performance of the gun is improved.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is a front view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a partial cross-sectional view of the present invention.
Fig. 4 is a schematic view of an installation structure of a heat shield of a conventional firearm.
Fig. 5 is a schematic structural view of the fixing base of the present invention.
Fig. 6 is a sectional view of the fixing base of the present invention.
Reference numbers in the figures:
1. the heat-proof cover type bullet magazine comprises a fixing seat, 2 parts of a heat-proof cover, 3 parts of a heat-proof cover limiting screw, 4 parts of a magazine, 5 parts of a magazine tube, 6 parts of a barrel fixing nut, 7 parts of a barrel, 8 parts of a spring piece, 9 parts of a heat-proof cover screw, 12 parts of a barrel sleeve hole, 13 parts of a magazine tube sleeve hole, 14 parts of a flat groove, 21 parts of a positioning block, 22 parts of a Picatinny guide rail, and 23 parts of a U-shaped limiting groove.
Detailed Description
As shown in fig. 1-6, a quick-release fixing device for a heat shield of a firearm comprises a fixing base 1, a heat shield 2, a receiver 4, a barrel 5, a barrel fixing nut 6 and a barrel 7. The fixing seat 1 is riveted on the gun barrel 7, the gun barrel 7 and the magazine tube 5 are arranged at the front end of the receiver 4, the gun barrel 7 is arranged at the upper part, the magazine tube 5 is arranged at the lower part, the heat-proof cover 2 which is limited and fixed by the fixing seat 1 and the receiver 4 is arranged above the gun barrel 7, and the gun barrel fixing nut 6 is screwed to realize assembly. Wherein, the barrel sleeve hole 12 of the fixed seat 1 is provided with a flat groove 14 on the rear end face, the top of the box 4 is screwed with a limit screw 3 of a heat shield, the front end of the heat shield 2 is fixedly connected with a positioning block 21, the rear end of the heat shield 2 is provided with a U-shaped limit groove 23, the top of the heat shield 2 is provided with a Picatinny guide rail 22, the heat shield 2 is inserted on the threaded rod of the screw 3 through the U-shaped limit groove 23 and is pressed by a screw cap at the top end of the heat shield, so that the upper, lower, left and right directions of the rear end of the heat shield are limited, when the fixed seat 1 is sleeved on the barrel 7 and the magazine tube 5, the flat groove 14 is sleeved on the positioning block 21 of the heat shield 2, so that the upper, lower, left and right directions of the front end of the heat shield are limited, when the fixed seat 1 is fixed after the nut 6 is fixed, the front and rear directions of the heat shield 2 are simultaneously limited, thereby the, can be disassembled.
The threaded rod of the heat shield limiting screw 3 is screwed into the casing 4, and the distance between the bottom surface of the top cap body and the casing 4 is equal to the wall thickness of the plate bodies on two sides of the U-shaped limiting groove 23 of the heat shield 2.
The root end of the U-shaped limiting groove 23 of the heat shield 2 is provided with an inclined plane.
The sectional dimension of the flat groove 14 of the fixing seat 1 is the same as that of the positioning block 21, the depth of the flat groove 14 is slightly larger than the length of the positioning block 21, and each side of the end face of the flat groove 14 is provided with an inclined surface.
As shown in fig. 4, when the conventional heat shield 2 is disassembled, the screws 9 of the heat shield, which are used for closing the screws, on both sides of the fixing seat 9 need to be removed first, and then the spring plate 8 is pressed by an auxiliary tool to realize the disassembly.
During installation, the front end of the heat shield 2 needs to be installed on the fixing seat 1 through the heat shield screw 9, the rotating spring piece 8 is adjusted through a gap between the heat shield 2 and the magazine tube 5, the spring piece 8 is extruded through an auxiliary tool, and installation can be achieved.
The utility model discloses after loosening heat shield stop screw 3, one step can accomplish the dismantlement, otherwise, the installation can be realized to the heat shield stop screw 3 of screwing.
Claims (4)
1. The utility model provides a heat shield quick detach fixing device of firearms, including fixing base (1), heat shield (2), receiver (4), magazine pipe (5), barrel fixing nut (6), barrel (7), receiver (4) front end is equipped with barrel (7) and magazine pipe (5), barrel (7) are last, magazine pipe (5) are under, fixing base (1) are simultaneously overlapped on barrel (7) and magazine pipe (5) through barrel trepanning (12) and magazine pipe trepanning (13), barrel (7) after the combination are fixed through barrel fixing nut (6) screw thread screw in magazine pipe (5) with fixing base (1), be equipped with above fixing base (7) by fixing base (1) and receiver (4) spacing fixed heat shield (2), its characterized in that: the barrel sleeve hole (12) of fixing base (1) top rear end face on seted up flat slot (14), screw in has heat shield stop screw (3) at receiver (4) top screw thread, heat shield (2) front end fixedly connected with locating piece (21), U type spacing groove (23) have been seted up to heat shield (2) rear end, heat shield (2) top is equipped with pick up ni's guide rail (22), heat shield (2) are inserted on the threaded rod of heat shield stop screw (3) through U type spacing groove (23), with the rear end about spacing, flat slot (14) cover through fixing base (1) is spacing about the front end about on locating piece (21), when spacing fixing base (1) through barrel fixation nut (6), prescribe a limit to its front and back.
2. The heat shroud quick release fixing device of a firearm of claim 1, wherein: the threaded rod of the heat shield limiting screw (3) is screwed into the casing (4), and the distance between the bottom surface of the top cap body and the casing (4) is the wall thickness of the plate bodies on two sides of the U-shaped limiting groove (23) of the heat shield (2).
3. The heat shroud quick release fixing device of a firearm of claim 1, wherein: the root end of the U-shaped limiting groove (23) of the heat-proof cover (2) is provided with an inclined plane.
4. The heat shroud quick release fixing device of a firearm of claim 1, wherein: the cross-sectional dimension of the flat groove (14) of the fixing seat (1) is the same as that of the positioning block (21), the depth of the flat groove (14) is slightly larger than the length of the positioning block (21), and an inclined surface is guided on one side of the end surface of the flat groove (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021086418.6U CN212431919U (en) | 2020-06-13 | 2020-06-13 | Heat shield quick detach fixing device of firearms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021086418.6U CN212431919U (en) | 2020-06-13 | 2020-06-13 | Heat shield quick detach fixing device of firearms |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212431919U true CN212431919U (en) | 2021-01-29 |
Family
ID=74272741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021086418.6U Active CN212431919U (en) | 2020-06-13 | 2020-06-13 | Heat shield quick detach fixing device of firearms |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212431919U (en) |
-
2020
- 2020-06-13 CN CN202021086418.6U patent/CN212431919U/en active Active
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