CN103213097A

CN103213097A - Gas nail gun

Info

Publication number: CN103213097A
Application number: CN2013101478849A
Authority: CN
Inventors: 朱益民
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-04-25
Filing date: 2013-04-25
Publication date: 2013-07-24

Abstract

The invention discloses a gas nail gun. The gas nail gun comprises a cylinder head and a cylinder body, wherein a sliding sleeve is sleeved outside the cylinder body, and a connecting arm of the sliding sleeve is installed in a sliding chute on the outer surface of the cylinder body. The gas nail gun is characterized in that connecting columns are arranged at the top of the cylinder body; a locating ring is arranged at the top ends of the connecting columns; screw holes connected with the cylinder head are formed on the locating ring; cavities of the screw holes are formed in the connecting columns; and the cylinder body, the connecting columns and the locating ring are in an integral structure. The gas nail gun has a compact, simple and convenient design structure, is accurate in location among parts, has high location accuracy and strong anti-fatigue impact force, and can prolong the service lives of products and reduce the processing cost.

Description

A kind of combustion air nail gun

Technical field

The present invention relates to a kind of combustion-type driver, particularly a kind of combustion air nail gun.

Background technology

The structure of existing combustion air nail gun as shown in Figures 1 to 4, at present, at on the market combustion air nail gun is to bear hitting power with plastic casing all, wherein the endoporus of plastic casing bottom cooperates the location with the cylindrical of cylinder bottom, and the bottom of cylinder is to be positioned on the step of plastic casing 1-4, because the not machinability of plastic casing and the distortion after the plastic shaping and change in size all can cause the axial line disalignment of cylinder axial line and plastic casing, and can cause cylinder to change, and make the installation of cylinder and ailhead seat also axial deviation can take place in axial size.In addition, cylinder heads of all combustion air nail guns all are to be connected with pre-buried screw 1-2 on the plastic casing top in the market, cause cylinder head and cylinder occurrence positions to be offset like this.The high temperature that causes owing to igniting, burning, blast in the use of whole combustion air nail gun can make its plastic casing take place softening and expand, and has caused this product that change in size in use all can take place, or length variations.And even more serious be: each igniting blast all can make plastic casing axially impact, and the trend of drawing crack is arranged.Behind the general nailing tens0000 times, this plastic casing will break.

Summary of the invention

Purpose of the present invention just provides that a kind of can to cancel plastic casing stressed, improves the service precision and the combustion air nail gun in service life.

The objective of the invention is to realize by such technical scheme, a kind of combustion air nail gun, comprise cylinder head and cylinder body, the outside of cylinder body is with sliding sleeve, and the linking arm of sliding sleeve is installed in the chute of outer surface of cylinder block, it is characterized in that: the top of described cylinder body has joint pin, the top of joint pin is provided with the location annulus, on the annulus of location the screw that is connected with cylinder head is arranged, wherein the cavity of screw is arranged in the joint pin, and cylinder body, joint pin and location annulus are integrated.

First sealed groove that sealing ring is installed is arranged on the annulus periphery of described location, and the periphery at piston shift motion top has second sealed groove that sealing ring is installed, with the anchor ring of a coaxial sealing of first sealed groove formation.

The upper surface of described location annulus has first positioning boss, has second positioning boss that matches with first positioning boss at the lower surface of cylinder head.

The cylindrical of described cylinder head has the convex tendon of a plurality of projectioies, and the screw that is connected with cylinder head cover is arranged on the convex tendon, convex tendon is used to support the interior circle of the thermally insulating housing of combustion air nail gun, and has formed the passage that air enters combustion chamber between each convex tendon.

Described sliding sleeve is cylindrical shape, and sliding sleeve has the aperture of matching with setting circle ring outer surface sealing ring place, and the top of sliding sleeve has along the upwardly extending plural positioning bar of axis direction.The cylindrical seal ring seal at sliding sleeve bottom and cylinder piston shift motion top, top and the cylindrical seal ring seal of locating annulus.

On the top of sliding sleeve, on the excircle in the aperture of matching reinforcement is arranged with first sealed groove on the annulus periphery of location.

Described setting circle ring diameter is greater than the diameter of piston shift motion top cylindrical.

The thermally insulating housing upper end is installed between cylinder head cover and the cylinder head, and the lower end is installed between rifle head base and the cylinder body.

This invention project organization compactness, easy, accurate positioning between the parts, positioning accuracy height, the antifatigue impulsive force is strong, can prolong the service life of product, cuts down finished cost.

Figure of description

Fig. 1 is the structural representation of combustion air nail gun in the prior art;

Fig. 2 is the structural representation of cylinder in the present technology;

Fig. 3 is the structural representation of cylinder head in the prior art;

Fig. 4 is the structural representation of sliding sleeve combination in the prior art;

Fig. 5 is the structural representation of the embodiment of the invention;

Fig. 6 is the structural representation of cylinder body among Fig. 5;

Fig. 7 is the structural representation of cylinder head among Fig. 5;

Fig. 8 is the combining structure schematic diagram of cylinder head and cylinder body;

Fig. 9 is the structural representation of sliding sleeve among Fig. 5;

Figure 10 is the structural representation at cylinder body top.

Among the figure, 1-1 is a cylinder head cover, and 1-2 is pre-sunk screw, 1-3 is a cylinder head, and 1-4 is a plastic casing, and 5-1 is a cylinder head cover, 5-2 is a cylinder head, and 5-3 is a spark plug, and 5-4 is a sliding sleeve, 5-5 is a thermally insulating housing, and 5-6 is a guard, and 5-7 is a rifle head base, 5-8 is a motor, and 5-9 is the air blade combination, and 5-10 is a piston striker assembly, 5-11 is a cylinder body, and 5-12 is a cushion pad, and 6-1 is the location annulus, 6-2 is a joint pin, and 6-3 is first positioning boss, and 6-4 is a screw, 6-5 is first sealed groove, 6-6 is a piston shift motion top cylindrical, and 6-7 is second sealed groove, and 7-1 is that cylinder head cover connects screw, 7-2 is location annulus attachment screw via hole, 7-3 is a convex tendon, and 7-4 is second positioning boss, and 9-1 is a positioning bar, 9-2 is a linking arm, and 9-3 is a reinforcement.

The specific embodiment

The present invention will be further described below in conjunction with the drawings and specific embodiments.

Extremely shown in Figure 10 as Fig. 5, cylinder body 5-11 moves at piston the groove that sealing ring is installed on the periphery at top, stretch out a plurality of joint pin 6-2 on its end face, on the cylindrical of location, the top of joint pin annulus 6-1 the groove that seal is installed is arranged, the diameter of this groove moves the sealing ring trench diameter on the periphery at top greater than piston.At this location annulus the screw that is connected with cylinder head 5-2 is arranged, and this screw is through joint pin.

Cylinder head 5-2 is directly installed on the location annulus 6-1 on joint pin top of cylinder body 5-11, location annulus 6-1 by the second positioning boss 7-4 cylinder body top on the cylinder head 5-2 carries out radial location, is connected by the screw on the location annulus on the via hole above the cylinder head and cylinder body joint pin top.The lower end of cylinder body 5-11 is connected with rifle head base 5-1.So just formed one by rifle head base, cylinder body 5-11, to the connection integral body of the rigidity of cylinder head 5-2.

Sliding sleeve 5-4 is a single-piece, compact conformation, be cylindrical shape, directly between the cylindrical sealing ring at the annulus outer seal ring place, location on the joint pin top of cylinder body and piston shift motion top, slide, and locate by a plurality of positioning bar 9-1 that annulus outer seal ring place, the location aperture circumference with cylinder body 5-11 joint pin top up extends, and seal by the sealing ring in the sealed groove on two annulus, the axial force that the nail rifle produces in igniting, burning, blast with when hitting is all born by cylinder body 5-11.In addition, on the top of sliding sleeve, on the aperture excircle that matches with the location annulus on cylinder body 5-11 joint pin top reinforcement 9-3 is arranged, so that can bear the radial load that the nail rifle produces at igniting, burning, explosion time.There is a linking arm 9-2 who extends the sliding sleeve lower end, and the bottom of linking arm and guard 5-6 are fastenedly connected.

In addition, the cylindrical of the cylinder head 5-2 that is connected with cylinder body 5-11 has the convex tendon 7-3 of a plurality of projectioies, and these convex tendons can support thermally insulating housing 5-5, and have formed the passage that a plurality of air enters combustion chamber between the interior circle of adjacent convex tendon and thermally insulating housing 5-5.The screw that this cylinder head 5-2 goes up convex tendon can be fastenedly connected with cylinder head cover 5-1, and between the positioning step of the bottom surface of a plurality of convex tendons of cylinder head 5-2 cylindrical projection and cylinder head cover 5-1, form the gap of a ring-type, so that thermally insulating housing 5-5 top can be fastened in this gap, the lower end of thermally insulating housing 5-5 is fastened in the annular gap of rifle head base 5-7 and cylinder body 5-11 formation, so in use the expansion of the plastics thermally insulating housing cause can not influence the serviceability of this product and change in size because temperature raises.

In this invention, thermally insulating housing only plays heat insulation effect, does not have support function, even just thermally insulating housing is removed, does not also influence the function of nail rifle at all.

Because it is ingenious, easy to process to have adopted technique scheme, the present invention to have a design, makes the precision height, prolongs the service life of whole nail rifle.

Claims

1. one kind fires air nail gun, comprise cylinder head and cylinder body, the outside of cylinder body is with sliding sleeve, the linking arm of sliding sleeve is installed in the chute of outer surface of cylinder block, it is characterized in that: the top of described cylinder body has joint pin, and the top of joint pin is provided with the location annulus, on the annulus of location the screw that is connected with cylinder head is arranged, wherein the cavity of screw is arranged in the joint pin, and cylinder body, joint pin and location annulus are integrated.

2. combustion air nail gun as claimed in claim 1, it is characterized in that: first sealed groove that sealing ring is installed is arranged on the annulus periphery of described location, the periphery at piston shift motion top has second sealed groove that sealing ring is installed, with the anchor ring of a coaxial sealing of first sealed groove formation.

3. combustion air nail gun as claimed in claim 1 or 2 is characterized in that: the upper surface of described location annulus has first positioning boss, has second positioning boss that matches with first positioning boss at the lower surface of cylinder head.

4. combustion air nail gun as claimed in claim 1, it is characterized in that: the cylindrical of described cylinder head has the convex tendon of a plurality of projectioies, the screw that is connected with cylinder head cover is arranged on the convex tendon, convex tendon is used to support the interior circle of the thermally insulating housing of combustion air nail gun, and formed the passage that air enters combustion chamber between each convex tendon.

5. combustion air nail gun as claimed in claim 1 is characterized in that: described sliding sleeve is cylindrical shape, and sliding sleeve has the aperture of matching with setting circle ring outer surface sealing ring place, and the top of sliding sleeve has along the upwardly extending plural positioning bar of axis direction.

6. the cylindrical seal ring seal at sliding sleeve bottom and cylinder piston shift motion top, the cylindrical seal ring seal of top and location annulus.

7. combustion air nail gun as claimed in claim 5 is characterized in that: on the top of sliding sleeve, on the excircle in the aperture of matching with first sealed groove on the annulus periphery of location reinforcement is arranged.

8. combustion air nail gun as claimed in claim 2 is characterized in that: described setting circle ring diameter is greater than the diameter of piston shift motion top cylindrical.

9. the described combustion air nail gun of claim 4 is characterized in that: the thermally insulating housing upper end is installed between cylinder head cover and the cylinder head, and the lower end is installed between rifle head base and the cylinder body.