CN2527401Y

CN2527401Y - Pneumatic straight nail gun

Info

Publication number: CN2527401Y
Application number: CN02221603U
Authority: CN
Inventors: 喻启平
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-07
Filing date: 2002-02-07
Publication date: 2002-12-25
Anticipated expiration: 2012-02-07

Abstract

A pneumatic nail gun comprises a gun body, an executive mechanism of a cylinder piston, an air inlet channel, an exhaust channel, a control mechanism of a balance valve and a control mechanism of a pneumatic valve. The utility model is characterized in that: the exhaust channel is formed by an exhaust room and an exhaust path which are mutually communicated and arranged in sequence on the gun body and an exhaust cavity extending rearward the gun body, an air outlet of the exhaust cavity is positioned at the end part of the gun body, an exhaust hole inside communicated with the exhaust cavity inside the valve seat is arranged on the valve seat of the control mechanism of the balance valve, and a sealing cover is positioned at the top part of the control mechanism of the balance valve. The utility model has the advantages of simple structure, convenient manufacture and low noise, etc., and has strong sealing property that strengthens nailing force and the waste gas can be discharged to the end part of the gun body to avoid polluting working substance.

Description

Pneumatic straight nail rifle

(1), affiliated technical field

The utility model relates to a kind of pneumatic tool of architectural decoration, particularly a kind of pneumatic stapler.

(2), technical background

Existing pneumatic stapler generally is made up of rifle body, cylinder piston executing agency, inlet channel, exhaust passage, balanced valve controlling organization and pneumatic valve control device, its exhaust passage operated by rotary motion belongs to rifle body front top exhaust structure on the top of balanced valve controlling organization.Because exhaust the place ahead on the rifle body, the ail gun of this structure exists the big deficiency of noise, but also easily the greasy dirt air is arranged to working substance, pollutes working substance, has influenced the attractive in appearance of ornament, has increased labor intensity of operating personnel.

(3), summary of the invention

The purpose of this utility model just provides a kind of simple in structure, easily manufactured and pneumatic straight nail rifle that noise is little, and its waste gas can be arranged to rifle body afterbody, avoids polluting working substance.

The purpose of this utility model is to realize by such technical scheme, it includes rifle body, cylinder piston executing agency, inlet channel, exhaust passage, balanced valve controlling organization and pneumatic valve control device, it is characterized in that: the exhaust passage is to constitute by be disposed with exhaust chamber, exhaust duct that communicates with each other and the discharge chamber of stretching to edge, rifle body rear on the rifle body, the gas outlet of discharge chamber is positioned at the afterbody of rifle body, the valve seat of balanced valve controlling organization is provided with the exhaust hole that communicates with exhaust chamber in the valve seat, and balanced valve controlling organization top is provided with seal cover.

In the utility model, cylinder piston executing agency, balanced valve controlling organization and pneumatic valve control device are ripe prior art.Cylinder piston executing agency is made up of cylinder, piston, upper chamber, lower chamber and the check valve, the return-air hole that are arranged on the cylinder wall; The balanced valve controlling organization is made up of valve seat, spool, spring, the airtight pad that is arranged at the O-ring seal on the spool and is arranged at the valve seat top; Pneumatic operated valve is formed by plate machine handle, pneumatic operated valve with into and out of air flue.

Operation principle of the present utility model mainly contains air inlet nailing and exhaust two processes that reset:

1. air inlet nailing process: inlet channel and source of the gas are connected, pull the plate machine handle on the pneumatic operated valve controlling organization, pneumatic operated valve cuts out, compressed air directly enters the upper chamber of cylinder piston executing agency through inlet channel, spool on the balanced valve controlling organization seals cylinder port by O-ring seal at this moment, because the exhaust hole of the over top of spool is through exhaust chamber, exhaust duct, discharge chamber is communicated with atmosphere, make the bottom surface and the end face of spool form up-small and down-big pressure difference, thereby promoting spool moves up, until the airtight pad that compresses on the valve seat, block the exhaust hole, and the cylinder port of opening, the compressed air in the upper chamber can only enter cylinder along cylinder port, promotes piston fast and moves downward, the striker that is connected with piston impacts straight nail in nail Leading board, finish the work of air inlet nailing.

When piston moved downward rapidly, the compressed air that enters in the cylinder entered in the lower chamber through check valve.

2. exhaust reseting procedure: unclamp plate machine handle, pneumatic operated valve is opened, compressed air in the inlet channel is through pneumatic operated valve, air intake duct enters the spool upper surface on the balanced valve controlling organization, make spool up and down the pressure of both ends of the surface equate, spool moves down under the effect of spring, until blocking cylinder port by the O-ring seal on the spool, prevent entering of inlet channel compressed air, simultaneously, spool and airtight pad are separated, and the exhaust hole on the valve seat is opened, and through exhaust chamber, exhaust duct, discharge chamber communicates with atmosphere, the air passing hole of residual gas on spool of piston top, the exhaust hole, discharge to rifle body afterbody the exhaust passage, simultaneously, the return-air hole of the compressed air in the lower chamber on cylinder wall enters the piston below, moves on the promotion piston is rapid, get back to original position until piston, to finish the exhaust reseting procedure.Because exhaust of the present utility model is discharged from the afterbody of rifle body, therefore, it can avoid polluting working substance, has reduced noise.

Owing to adopted technique scheme, advantage such as the utlity model has and noise is little simple in structure, easily manufactured, its sealing is strong, strengthens the nailing dynamics, and its waste gas can be arranged to rifle body afterbody, avoids polluting working substance.

(4), description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is the structural representation of the utility model under the nailing state;

Fig. 2 is the structural representation of the utility model under exhaust condition.

Among the figure: 1. rifle body; 2. inlet channel; 3. exhaust chamber; 4. exhaust duct; 5. discharge chamber; 6. valve seat; 7. exhaust hole; 8. seal cover; 9. cylinder; 10. piston; 11. upper chamber; 12. lower chamber; 13. check valve; 14. return-air hole; 15. spool; 16. spring; 17. O-ring seal; 18. airtight pad; 19. plate machine handle; 20. air intake duct.

(5), the specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, 2, the utility model includes rifle body 1, cylinder piston executing agency, inlet channel 2, exhaust passage, balanced valve controlling organization and pneumatic valve control device, it is characterized in that: the exhaust passage is to constitute by be disposed with exhaust chamber 3, exhaust duct 4 that communicates with each other and the discharge chamber of stretching to edge, rifle body rear 5 on rifle body 1, the gas outlet of discharge chamber 5 is positioned at the afterbody of rifle body, the valve seat 6 of balanced valve controlling organization is provided with the exhaust hole 7 that communicates with exhaust chamber 3 in the valve seat, and balanced valve controlling organization top is provided with seal cover 8.

As shown in Figure 1, 2, in the utility model, cylinder piston executing agency, balanced valve controlling organization and pneumatic valve control device are ripe prior art.Cylinder piston executing agency is made up of cylinder 9, piston 10, upper chamber 11, lower chamber 12 and the check valve 13, the return-air hole 14 that are arranged on the cylinder wall; The balanced valve controlling organization is made up of valve seat 6, spool 15, spring 16, the airtight pad 18 that is arranged at the O-ring seal 17 on the spool 15 and is arranged at valve seat 6 tops; Pneumatic operated valve is made up of plate machine handle 19, pneumatic operated valve and air intake duct 20.

1. air inlet nailing process: inlet channel 2 and source of the gas are connected, pull the plate machine handle 19 on the pneumatic operated valve controlling organization, pneumatic operated valve cuts out, compressed air directly enters the upper chamber 11 of cylinder piston executing agency through inlet channel 2, spool 15 on the balanced valve controlling organization seals cylinder port by O-ring seal 17 at this moment, because the exhaust hole 7 of the over top of spool 15 is through exhaust chamber 3, exhaust duct 4, discharge chamber 5 is communicated with atmosphere, make the bottom surface and the end face of spool 15 form up-small and down-big pressure difference, thereby promoting spool 15 moves up, until the airtight pad 18 that compresses on the valve seat 6, block exhaust hole 7, and the cylinder port of opening, the compressed air in the upper chamber 11 can only enter cylinder 9 along cylinder port, promotes piston 10 fast and moves downward, the striker that is connected with piston 10 impacts straight nail in nail Leading board, finish the work of air inlet nailing.

When piston 10 moved downward rapidly, the compressed air that enters in the cylinder 9 entered in the lower chamber 12 through check valve 13.

2. exhaust reseting procedure: unclamp plate machine handle 19, pneumatic operated valve is opened, compressed air in the inlet channel 2 is through pneumatic operated valve, air intake duct 20 enters spool 15 upper surfaces on the balanced valve controlling organization, the pressure of spool both ends of the surface about in the of 15 is equated, spool 15 moves down under the effect of spring 16, until blocking cylinder port by the O-ring seal on the spool 15 17, prevent entering of inlet channel 2 compressed airs, simultaneously, spool 15 is separated with airtight pad 18, exhaust hole 7 on the valve seat 6 is opened, and through exhaust chamber 3, exhaust duct 4, discharge chamber 5 communicates with atmosphere, the air passing hole of residual gas on spool 15 of cylinder 9 inner carriers 10 tops, exhaust hole 7, discharge to rifle body afterbody the exhaust passage, simultaneously, the return-air hole 14 of the compressed air in the lower chamber 12 on cylinder wall enters piston 10 belows, promotes piston 10 and moves on rapidly, get back to original position until piston 10, to finish the exhaust reseting procedure.Because exhaust of the present utility model is discharged from the afterbody of rifle body, therefore, it can avoid polluting working substance, has reduced noise.

Claims

1. pneumatic straight nail rifle, include rifle body (1), cylinder piston executing agency, inlet channel (2), the exhaust passage, balanced valve controlling organization and pneumatic valve control device, it is characterized in that: the exhaust passage is the exhaust chamber (3) that communicates with each other by being disposed with on rifle body (1), exhaust duct (4) and the discharge chamber of stretching to edge, rifle body rear (5) constitute, the gas outlet of discharge chamber (5) is positioned at the afterbody of rifle body, the valve seat of balanced valve controlling organization (6) is provided with the exhaust hole (7) that communicates with exhaust chamber (3) in the valve seat, and balanced valve controlling organization top is provided with seal cover (8).