CN219932609U - Cylinder of hand-held type nail shooting fastening tool - Google Patents

Abstract

The utility model discloses a cylinder of a handheld nail-shooting fastening tool, which comprises an inner cylinder and an outer cylinder, wherein the inner cylinder and the outer cylinder of an aluminum profile are connected together through aluminum profile ribs integrated with the inner cylinder and the outer cylinder; the front part of the air cylinder is provided with an air cylinder sealing ring groove, a sealing ring is inserted between the inner cylinder and the outer cylinder, an inner cylinder sealing ring and an outer cylinder sealing ring are respectively arranged inside and outside the sealing ring, and sealing is respectively formed with the outer wall of the inner cylinder and the inner wall of the outer cylinder; the rear part of the cylinder and the rear cover with the sealing ring form a seal, and the inner wall of the inner cylinder and the firing pin piston form a seal through the piston sealing ring; a rear air chamber is arranged at the rear part of the inner cylinder, so that the air chamber between the inner cylinder and the outer cylinder is communicated to form an air chamber together. The utility model has the advantages of high consistency of concentricity for the inner cylinder and the outer cylinder, high qualification rate, small processing amount and good working performance.

Description

Cylinder of hand-held type nail shooting fastening tool

Technical Field

The utility model relates to a cylinder of a hand-held nail shooting fastening tool.

Background

The nail shooting fastening tool is directly powered by a lithium battery, and the specific principle is as follows: the high-pressure gas is stored behind the striker piston, the striker piston is driven by the high-pressure gas after the switch is pressed, the striker is driven to fire and nailing, the striker piston finally collides and stops on the buffer block, and then the flywheel is driven after the motor is decelerated through the gear box, so that the striker is pulled back to the initial firing position, and the next firing is prepared.

The device for storing high-pressure gas is called a cylinder, and is generally divided into an inner cylinder and an outer cylinder, and a closed space between the outer cylinder and the inner cylinder is used for storing high-pressure gas and is called a gas chamber. The inner cylinder wall is used for a track on which the striker piston runs.

The products on the market generally separate the inner cylinder and the outer cylinder. With threaded connections or directly assembled. The disadvantages of this approach are the following:

1) The inner cylinder and the outer cylinder are complex in shape, large in processing amount and high in cost.

2) The inner cylinder and the outer cylinder are connected by screw threads or directly matched, the concentricity is not guaranteed, and the qualification rate is low.

Disclosure of Invention

The utility model aims to provide a cylinder of a handheld nail shooting fastening tool, which has the advantages of high consistency of concentricity for an inner cylinder and an outer cylinder, high qualification rate, small processing amount and good working performance.

The technical scheme of the utility model is as follows:

the utility model provides a hand-held type is penetrated nail fastening tool's cylinder, includes interior jar, outer jar, characterized by: an aluminum section is adopted to connect the inner cylinder and the outer cylinder together through a plurality of ribs (namely, the aluminum section inner cylinder and the aluminum section outer cylinder are connected together through a plurality of aluminum section ribs which are integrated with the inner cylinder and the outer cylinder);

the front part of the air cylinder is provided with an air cylinder sealing ring groove, a sealing ring is inserted between the inner cylinder and the outer cylinder, an inner cylinder sealing ring and an outer cylinder sealing ring are respectively arranged inside and outside the sealing ring, and sealing is respectively formed with the outer wall of the inner cylinder and the inner wall of the outer cylinder;

the rear part of the cylinder and the rear cover with the sealing ring form a seal, and the inner wall of the inner cylinder and the firing pin piston form a seal through the piston sealing ring;

the rear air chamber is arranged at the rear part of the inner cylinder (namely, at one side close to the rear cover), so that the air chamber between the inner cylinder and the outer cylinder is communicated to form the air chamber together.

The utility model has the advantages of high consistency of concentricity for the inner cylinder and the outer cylinder, high qualification rate, small processing amount and good working performance.

Drawings

The utility model is further described below with reference to the drawings and examples.

Fig. 1 is a schematic diagram of the structure of an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of a cylinder.

Fig. 3 is an axial side view of the cylinder.

Fig. 4 is a schematic view of the cylinder according to the present utility model in use.

In the figure: 1, an air cylinder; 1-1 an outer cylinder; 1-2 cylinder inner cylinders; 1-3 connecting ribs of the inner cylinder and the outer cylinder; 1-4 cylinder seal ring grooves; 1-5 rear air chambers; 2, a rear cover; 3, a bracket; 4 gun nozzles; 5 nailing seat; 6, a gear box; 7, a motor; 8, flywheel; 9 a striker piston; 10 piston sealing rings; 11 firing pins; 12 sealing rings; 13 inner cylinder sealing rings; 14 an outer cylinder sealing ring; 15 cushion pad.

Description of the embodiments

The utility model provides a cylinder of hand-held type nail shooting fastening instrument, has avoided the separate structure of outer cylinder and interior jar on the market, designs one section aluminium alloy (aluminium agent shaping) structure and connects the interior jar 1-2 and the outer jar 1-1 of nail shooting fastening instrument cylinder 1 together through several inside and outside jar connecting rib 1-3.

A cylinder sealing ring groove 1-4 is designed at the front part of a cylinder 1, a sealing ring 12 is inserted between an inner cylinder 1-2 and an outer cylinder 1-1, an inner cylinder sealing ring 13 and an outer cylinder sealing ring 14 are respectively arranged inside and outside the sealing ring 12, and sealing is respectively formed with the outer wall of the inner cylinder 1-2 and the inner wall of the outer cylinder 1-1.

The rear part of the cylinder 1 is sealed with the rear cover 2 with a sealing ring, and the inner wall of the inner cylinder 1-2 is sealed with the firing pin piston 9 through a piston sealing ring 10.

At the rear part of the inner cylinder 1-2 (near the rear cover 2 side), a part of the material of the inner cylinder 1-2 is removed by turning to serve as a rear air chamber 1-5. The air chamber between the inner cylinder 1-2 and the outer cylinder 1-3 is communicated to form an air chamber together.

The cylinder 1, the rear cover 2, the striker piston, the sealing ring 12 and the respective seals thus made of aluminum profiles form a gas chamber for storing high-pressure gas.

Claims (1)

1. The utility model provides a hand-held type is penetrated nail fastening tool's cylinder, includes interior jar, outer jar, characterized by: an inner cylinder and an outer cylinder are connected together through a plurality of ribs by adopting a section of aluminum profile;

the front part of the air cylinder is provided with an air cylinder sealing ring groove, a sealing ring is inserted between the inner cylinder and the outer cylinder, an inner cylinder sealing ring and an outer cylinder sealing ring are respectively arranged inside and outside the sealing ring, and sealing is respectively formed with the outer wall of the inner cylinder and the inner wall of the outer cylinder;

the rear part of the cylinder and the rear cover with the sealing ring form a seal, and the inner wall of the inner cylinder and the firing pin piston form a seal through the piston sealing ring;

a rear air chamber is arranged at the rear part of the inner cylinder, so that the air chamber between the inner cylinder and the outer cylinder is communicated to form an air chamber together.