CN212431921U - Novel air guide piston assembly - Google Patents
Novel air guide piston assembly Download PDFInfo
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- CN212431921U CN212431921U CN202021086414.8U CN202021086414U CN212431921U CN 212431921 U CN212431921 U CN 212431921U CN 202021086414 U CN202021086414 U CN 202021086414U CN 212431921 U CN212431921 U CN 212431921U
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- piston
- piston rod
- air guide
- seat
- rod seat
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Abstract
The utility model discloses a novel air guide piston subassembly belongs to firearms accessory technical field. The piston assembly is composed of a piston and a piston rod, the piston rod is arranged at the rear end of the piston, the end part of the piston rod is in contact with the piston, a piston spring is arranged between the piston rod and a piston rod seat, the rear part of the front end of the piston rod is turned, and the diameter of the piston rod after being turned is the same as that of a shaft hole of the piston rod seat. The piston spring is arranged between the piston rod and the piston rod seat, the piston rod is supported on the rear end face of the piston, when bullets are shot, gunpowder gas enters the gas guide hoop through the gun barrel, the piston moves backwards, the piston supports the piston rod which is in contact with the piston rod and moves backwards, the piston rod compresses the piston spring and then is rigidly connected with the gun frame, the gun is driven to retreat together, and finally, the re-feeding spring resets, so that the gun can be used normally.
Description
Technical Field
The utility model relates to a novel air guide piston subassembly belongs to firearms accessory technical field.
Background
The piston assembly of the air-guide type firearm that uses now all is the integral type structure, in order to guarantee the axiality requirement, lead to the processing cycle long, the rejection rate is also high, and in the installation, because piston assembly's piston is located air guide hoop, and piston assembly's the body of rod is located the piston rod seat, both all need closely cooperate with supporting device, when strict passing to piston assembly's technology, all have this higher technological requirement to air guide hoop, the barrel of piston rod seat and its supporting installation, this makes air guide type firearm device's installation power become lower, supporting part rejection rate height, the cost of manufacture increases substantially, production efficiency step-down.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies existing in the prior art, the utility model provides a novel air guide piston assembly simplifies processing technology, reduces the installation degree of difficulty, reduces the rejection rate, and reduction in production cost improves production efficiency, in the installation, need not anxious air guide hoop and piston rod seat whether coaxial, and the homoenergetic is installed piston assembly, does not influence the result of use to convenient the dismantlement.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a novel air guide piston subassembly, the cover has the air guide hoop on the barrel, air guide hoop front end installation regulator, and the cover has a piston rod seat on the barrel at air guide hoop rear, and the barrel at piston rod seat rear passes through barrel coupling nut and firearms cooperation installation, is equipped with piston assembly in the air guide hoop, and piston assembly's piston rod inserts in the axle hole of piston rod seat, is equipped with the piston spring between piston rod and piston rod seat, wherein, piston assembly constitute by piston and piston rod, the piston rear end is equipped with the piston rod, the tailpiece of the piston rod portion contacts with the piston, the piston is the shoulder shaft, its rear end turning has the cylinder chamber, the piston rod be a shaft body, its front end diameter is greater than the shaft hole of piston rod seat and is less than the cavity diameter of piston, its front end rear is by lathe work, the diameter is the same with piston rod seat shaft.
During installation, firstly, the piston spring is sleeved on the piston rod, then, the rear end of the piston rod is inserted into the shaft hole of the piston rod seat, then, the piston is inserted into the air guide hoop, the front end of the piston rod abuts against the end face of the rear cavity of the piston through the piston spring, and the piston rod is always in contact with the piston no matter whether the piston and the piston rod are coaxial or not, so that a complete piston assembly is formed.
When the bullet is launched, gunpowder gas enters the gas guide hoop through the gun barrel, so that the piston moves backwards, the piston abuts against a piston rod in contact with the piston and moves backwards, the piston rod compresses a piston spring and then is rigidly connected with a gun frame, the gun is driven to retreat together, and finally, the gun is reset through the re-feeding spring, so that the gun can be normally used.
The utility model has the advantages that: the problem of the air guide formula device production cycle of current firearms long, the rejection rate is high and the installation degree of difficulty is big is solved, a novel air guide piston assembly is provided, become split type structure with piston assembly, simplify processing technology, reduce the installation degree of difficulty, need not worry whether the shaft hole of air guide hoop inner tube and piston rod seat is coaxial, the homoenergetic installs piston assembly, and does not influence the result of use, reduces the rejection rate simultaneously, reduction in production cost improves production efficiency to convenient the dismantlement.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is a schematic structural diagram of the present invention.
Reference numbers in the figures:
1. barrel, 2, regulator, 3, air guide hoop, 4, piston, 5, piston rod, 6, piston rod seat, 7, barrel connection nut, 8, piston spring.
Detailed Description
As shown in figure 1, a novel air guide piston assembly, a barrel 1 is sleeved with an air guide hoop 3, the front end of the air guide hoop 3 is provided with an adjuster 2, the barrel 1 behind the air guide hoop 3 is sleeved with a piston rod seat 6, the barrel 1 behind the piston rod seat 6 is matched and installed with a firearm through a barrel connecting nut 7, a piston assembly is arranged in the air guide hoop 3, a piston rod 5 of the piston assembly is inserted into a shaft hole of a piston rod seat 6, a piston spring 8 is arranged between the piston rod 5 and the piston rod seat 6, wherein the piston assembly consists of a piston 4 and a piston rod 5, the piston rod 5 is arranged at the rear end of the piston 4, the end part of the piston rod 5 is contacted with the piston 4, the piston 4 is a stepped shaft, the rear end of the piston rod 5 is turned with a cylindrical cavity, the diameter of the front end of the piston rod 5 is larger than the shaft hole of the piston rod seat 6 and smaller than the diameter of the cavity of the piston 4, the rear part of the front end of the piston rod is turned, and the diameter of the front end of the piston rod is the same as the shaft hole of the piston rod seat 6 after being turned.
During the installation, embolia piston spring 8 on the piston rod 5 earlier, insert piston rod 5 rear end in the shaft hole of piston rod seat 6 again, in the back leads gas hoop 3 with the insertion of piston 4, piston rod 5 front end passes through piston spring 8 top on the rear chamber terminal surface of piston 4, no matter whether piston 4 is coaxial with piston rod 5, piston rod 5 contacts with piston 4 all the time, constitutes a complete piston assembly.
When the bullet is launched, gunpowder gas enters the gas guide hoop 3 through the gun barrel 1, so that the piston 4 moves backwards, the piston 4 abuts against the piston rod 5 in contact with the piston 4 to move backwards, the piston rod 5 compresses the piston spring 8 and then is rigidly connected with the gun frame, the gun is driven to retreat together, and finally, the gun is reset through the re-feeding spring, so that the gun can be normally used.
Claims (1)
1. The utility model provides a novel air guide piston subassembly, the cover has air guide hoop (3) on barrel (1), air guide hoop (3) front end installation regulator (2), the cover has piston rod seat (6) on barrel (1) of air guide hoop (3) rear, barrel (1) at piston rod seat (6) rear is installed through barrel coupling nut (7) and firearms cooperation, be equipped with piston subassembly in air guide hoop (3), piston subassembly's piston rod (5) insert in the shaft hole of piston rod seat (6), be equipped with piston spring (8) between piston rod (5) and piston rod seat (6), its characterized in that: piston assembly comprises piston (4) and piston rod (5), piston (4) rear end is equipped with piston rod (5), piston rod (5) tip and piston (4) contact, piston (4) are the step shaft, its rear end turning has the cylinder chamber, piston rod (5) are a shaft rod body, its front end diameter is greater than the shaft hole of piston rod seat (6) and is less than the cavity diameter of piston (4), its front end rear is lathe work, the diameter is the same with piston rod seat (6) shaft hole after the processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021086414.8U CN212431921U (en) | 2020-06-13 | 2020-06-13 | Novel air guide piston assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021086414.8U CN212431921U (en) | 2020-06-13 | 2020-06-13 | Novel air guide piston assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212431921U true CN212431921U (en) | 2021-01-29 |
Family
ID=74272389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021086414.8U Active CN212431921U (en) | 2020-06-13 | 2020-06-13 | Novel air guide piston assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212431921U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894289A (en) * | 2021-03-11 | 2021-06-04 | 重庆互久机械制造有限责任公司 | Processing technology of rifle piston seat |
-
2020
- 2020-06-13 CN CN202021086414.8U patent/CN212431921U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112894289A (en) * | 2021-03-11 | 2021-06-04 | 重庆互久机械制造有限责任公司 | Processing technology of rifle piston seat |
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