CN213731524U

CN213731524U - Miniature electric pin puller

Info

Publication number: CN213731524U
Application number: CN202022783661.XU
Authority: CN
Inventors: 刘浩; 唐琴; 杨小珍; 李慧芬; 卢烨
Original assignee: Sichuan Lanshi Technology Co ltd
Current assignee: Sichuan Lanshi Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-07-20
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a miniaturized electric pin puller, which belongs to the field of a flame gas actuating device and comprises a shell, wherein a piston assembly is arranged in the shell, two ends of the piston assembly respectively penetrate out of two ends of the shell, a backing ring is arranged at the inner side of one end of the shell, and a 0-shaped ring and a movable sheet are also arranged inside the shell and between the shell and the piston assembly; the piston assembly comprises a piston shell, and a glue layer, an insulating plug, an electrostatic release ring, an ignition part, an ignition medicament and a gasket are sequentially arranged in the piston shell; the utility model discloses an electricity pin puller passes through institutional advancement, can be accurate, reliably realize the function, and reduction in production cost is applicable to the operation of the miniaturized pin puller of various demands.

Description

Miniature electric pin puller

Technical Field

The utility model relates to a device field is done to firer type gas, especially relates to a miniaturized electric pin puller.

Background

The electric pin puller has the characteristics of simple structure, small size, reliable action and high safety, and is widely applied to weapon systems such as aerospace, aviation, weapons and the like. With the development of miniaturization of weapons, the ballistic mechanics environment is more and more complex, and the requirements of the electrical pin puller on miniaturization, high overload resistance and the like are met. The electric pin puller has higher requirements on multi-direction high overload resistance and action reliability, and has more strict requirements on environmental protection performance and action environment. The current structure cannot meet the requirements.

Disclosure of Invention

An object of the utility model is to provide a miniaturized electric pin puller to solve above-mentioned problem.

In order to achieve the above purpose, the utility model adopts the technical scheme that: a miniaturized electric pin puller comprises a shell, wherein a piston assembly is arranged in the shell, two ends of the piston assembly respectively penetrate out of two ends of the shell, a backing ring is arranged on the inner side of one end of the shell, and a 0-shaped ring and a movable sheet are further arranged inside the shell and between the shell and the piston assembly; the piston assembly comprises a piston shell, and a glue layer, an insulating plug, an electrostatic release ring, an ignition part, an ignition medicament and a gasket are sequentially arranged in the piston shell.

The shell is of an integral appearance structure of the electric pin puller, the expected pin pulling function is completed in the shell after the piston acts, and the structural integrity of the shell is preserved after the action is completed; the piston assembly can ignite corresponding medicaments through the electrode plug to provide gas kinetic energy for the pin pulling action of the whole system; the two O-shaped rings and the movable sheet jointly form an air chamber structure of the electric pin puller, and under the condition that the piston assembly continuously provides air, the air chamber is gradually enlarged and pushes the piston body to move to the left side, so that the pin pulling function is realized; the pin fixes the piston assembly, so that the piston assembly does not move under the condition that the electric pin puller is not acted, and meanwhile, certain high overload resistance can be met.

The piston assembly has an independent function and can meet the requirements of static electricity and 20M omega insulation; under the condition of a given rated ignition current, an ignition part in the piston assembly ignites a medicament, the medicament instantly works to generate flame and a large amount of gas, the generated flame burns a gasket, and the gas provides energy for the piston motion of the electric pin puller through a pore canal filling chamber of the piston assembly; the piston assembly is sealed by a gasket and a glue layer to isolate the medicament from air, thereby meeting the 14-year life requirement.

The two O-shaped rings and the movable sheet form an air chamber structure; the air enters the air chamber through the pore channel of the piston assembly, the pressure of the air chamber is inevitably changed due to the continuous increase of the air, the movable pieces on the two sides of the air chamber are acted by force, the movable pieces move to the right side under the pushing of the air and the O-shaped ring compresses a certain amount, and after the O-shaped ring is compressed to the limit, the air pushes the piston assembly to move to the left side, so that the preset pin pulling function of a product is achieved.

As a preferred technical scheme: one end of the piston assembly is fixed with the shell through a pin.

The pin fixes the piston assembly, so that the piston assembly does not move under the condition that the electric pin puller does not act, and the structural integrity is kept; the product can satisfy certain anti high overload ability and mainly realize through the pin, under the condition that bears the overload effort, the pin is not cracked.

As a preferred technical scheme: the piston assembly and the shell both adopt a closing-in structure. The structure has lower requirements on size and space, is very suitable for application of small weapons, and simultaneously has higher structural strength after the piston assembly and the shell are closed; after a large amount of gas is generated under the action of the medicament, the piston assembly and the glue layer after closing up jointly play a sealing role, so that the gas is not sprayed out from the tail end, and the gas chamber is ensured to be full of the gas; meanwhile, the retraction of the piston assembly has certain impact energy, and the shell closing-in structural strength ensures that the piston assembly is not separated from a product.

In addition, the shell structure has corresponding strength, and a single-side closing structure is adopted, so that structural strength support can be provided for the backing ring to block the movement of the piston assembly, and meanwhile, the upper part of the backing ring is filled with glue to be integrally sealed with the shell; the die cavity is reasonable in design and can provide installation and movement space for the piston assembly, the backing ring, the pin, the O-shaped ring and the movable sheet.

Compared with the prior art, the utility model has the advantages of: the utility model discloses an electricity pin puller passes through institutional advancement, can be accurate, reliably realize the function, and reduction in production cost is applicable to the operation of the miniaturized pin puller of various demands.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural view of the piston assembly of fig. 1.

In the figure: 1. a backing ring; 2. a piston assembly; 21. a glue layer; 22. an ignition member; 23. an ignition agent; 24. A gasket; 25. a static electricity discharge ring; 26. an insulating plug; 27. a piston housing; 3. an O-shaped ring; 4. a pin; 5. a movable plate; 6. a housing.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Example (b):

referring to fig. 1-2, a miniaturized electric pin puller comprises a housing 6, wherein a piston assembly 2 is arranged in the housing 6, two ends of the piston assembly 2 respectively penetrate out of two ends of the housing 6, a backing ring 1 is arranged on the inner side of one end of the housing 6, a 0-shaped ring 3 and a movable sheet 5 are further arranged inside the housing 6 and between the housing 6 and the piston assembly 2, and one end of the piston assembly 2 is fixed with the housing 6 through a pin 4; the piston assembly comprises a piston shell 27, and a glue layer 21, an insulating plug 26, an electrostatic release ring 25, an ignition part 22, an ignition medicament 23 and a gasket 24 are sequentially arranged in the piston shell 27;

in the embodiment, the size of the whole electric pin puller is phi 6.5 multiplied by 17.6, the pin pulling stroke is not less than 1.5mm, and meanwhile, the cyclic hammering of 23 teeth with downward pin heads, 23 teeth with upward heads, 1 time and 6 times (1 time per 60 degrees) of horizontal 18-tooth hammering is met, so that the structure cannot be damaged;

in the embodiment, two O-shaped rings 3 and a movable sheet 5 form a closed air chamber, the left O-shaped ring 3 is in a sealed state in a groove, and the right O-shaped ring 3 and the movable sheet 5 jointly form a sealed structure; a closed air chamber is formed in the two O-shaped rings, so that the piston assembly can be pushed to move, and the self-locking function can be realized after the movement is finished;

the piston assembly 2 of the embodiment is smaller, so the electrostatic discharge function is completed by adopting the electrostatic discharge ring 25 in the anti-static design of the scheme, the electrostatic discharge ring 25 has a certain distance with the electrode plug contact pin, and the distance is favorable for discharging static electricity from the electrostatic discharge channel; meanwhile, the insulating plug 26 plays a role in fixing the static electricity releasing ring 25, so that the static electricity releasing ring 25 does not move in the product;

the specific working process is as follows:

firstly, an external system gives a set electric signal, an electric ignition part 22 ignites an ignition medicament 23 to generate a large amount of high-temperature and high-pressure gas, and the gas breaks through a gasket 24 and enters a closed gas chamber; the increase of the closed air chamber breaks the pin 4 and then pushes the piston assembly 2 to move backwards, thereby realizing the pin pulling function of the product.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a miniaturized electric pin puller which characterized in that: the piston assembly is arranged in the shell, two ends of the piston assembly respectively penetrate out of two ends of the shell, a backing ring is arranged on the inner side of one end of the shell, and a 0-shaped ring and a movable sheet are arranged in the shell and between the shell and the piston assembly; the piston assembly comprises a piston shell, and a glue layer, an insulating plug, an electrostatic release ring, an ignition part, an ignition medicament and a gasket are sequentially arranged in the piston shell.

2. The miniaturized electrical pin puller of claim 1, wherein: one end of the piston assembly is fixed with the shell through a pin.

3. The miniaturized electrical pin puller of claim 1, wherein: the piston assembly and the shell both adopt a closing-in structure.