CN2216896Y

CN2216896Y - Pneumatic nailing machine

Info

Publication number: CN2216896Y
Application number: CN 94242953
Authority: CN
Inventors: 刘东生
Original assignee: XUZHOU PNEUMATIC TOOLS FACTORY
Current assignee: XUZHOU PNEUMATIC TOOLS FACTORY
Priority date: 1994-11-17
Filing date: 1994-11-17
Publication date: 1996-01-10
Anticipated expiration: 2004-11-17

Abstract

The utility model discloses a pneumatic nailing machine. A switch valve is arranged on the left end of the air inlet cavity of the machine body of the pneumatic nailing machine, a valve hood is arranged on the upper part of the switch valve, and the lower part is provided with a valve body; the inner cavity of the valve body is provided with a valve rod, and a spring is arranged between the valve hood and the valve rod; the lower part of a contact arm is sheathed on the outside of a machine head. The action of a piston and a rush rod of the pneumatic nailing machine is accurate. The phenomena that many nails are hammered or no nail is hammered, which are caused by the high-low variation of the atmospheric pressure of compressed air are avoided. In addition, the pneumatic nailing machine can not act by a mistake when the contact arm of the pneumatic nailing machine is not pressed toward workpiece surfaces, so safe operation is ensured. The utility model has high work efficiency, and can nail various wooden wares.

Description

Pneumatic stapler

The utility model relates to a kind of carpenter's nailing instrument.

Known pneumatic stapler (producing " N80S-1 " pneumatic stapler) as the U.S., be compressed air from back body, enter the cylinder inner top through switch and promote piston and drive the jumper bar nailing.The switch of this nailing machine is controlled inaccuracy to compressed air, and at compressed air air pressure when higher or low, nailing machine is prone to the many nailings or the phenomenon of nailing not.And do not have safety guard, the easy misoperation of nailing machine causes the accident.

The purpose of this utility model provides a kind of pneumatic stapler, and it can adapt to the variation of compressed air height, can avoid many nailings, not nailing and misoperation phenomenon.

The purpose of this utility model is achieved in that at the inlet chamber left end of a fuselage installs a switch valve, and switch valve top is valve bonnet, and the bottom is a valve body, and body cavity is adorned a valve rod, adorns a spring between valve bonnet and the valve rod.

Valve bonnet is enclosed within valve body top, and there is a groove in the valve bonnet outside, cover one sealing ring in the groove, and there is a pore at center, valve bonnet top.Side, valve body middle part has pore to communicate with body cavity, and there is low groove on the twice valve body lower portion side, is with a sealing ring in the upper groove, has pore to communicate with body cavity in the low groove, and there is a circular hole at the valve body lower end center.Valve rod in the body cavity stretches out in the circular hole at valve body lower end center, and the twice groove is arranged at valve rod top, is with sealing ring in the groove, valve rod middle part cover one sealing ring.The valve rod lower end is positioned at above the contact lever.

Contact lever is positioned at above the starter, and the contact lever right-hand member connects the starter right-hand member, and the starter left end links to each other with fuselage, and contact lever gives on contact arm upper end.

Contact arm middle bent, contact arm bottom are enclosed within the head outside, and lower left side has a spring abutment, adorn a compression spring on the spring abutment, and compression spring upper end presses closer head.

Owing to adopted technique scheme, make the piston of nailing machine and jumper bar action accurately, stopped just to change the many nailings that cause or the phenomenon of nailing not because of compressed air air pressure.And when the contact arm of nailing machine was not pressed to surface of the work, nailing machine can misoperation, has guaranteed safe handling.Its high efficiency can be followed closely the various wooden utensils of system.

Elaborate below in conjunction with drawings and Examples.

Fig. 1 is the pneumatic stapler structure chart.

Fig. 2 is the switch valve structure chart of pneumatic stapler.

Fig. 3 is the contact arm structure chart of pneumatic stapler.

(1) housing-case among the figure, (2) promote bearing assembly, (3) screw, (4) contact lever, (5) starter, (6) resilient key, (7) arm controller, (8) head, (9) pin, (10) bolt, (11) connecting plate, (12) dust cover, (13) contact arm, (14) compression spring, (15) fuselage, (16) cylinder, (17) jumper bar, (18) cylinder head, (19) main piston, (20) tail-hood, (21) head valve piston, (22) switch valve, (23) valve bonnet, (24) spring, (25) sealing ring, (26) sealing ring, (27) sealing ring, (28) sealing ring, (29) sealing ring, (30) sealing ring, (31) valve body, (32) valve rod, (33) pore, (34) spring abutment, (35) door bolt sheet.

In Fig. 1, the inlet chamber right-hand member of fuselage (15) connects tail-hood (20), and the inlet chamber left end is installed switch valve (22).Switch valve (22) top is valve bonnet (23), and the bottom is valve body (31).Valve body (31) inner chamber dress valve rod (32), shock mount (24) between valve bonnet (23) and the valve rod (32).

In Fig. 2, valve bonnet (23) is enclosed within valve body (31) top, valve bonnet (23) and valve body (31) junction cover sealing ring (26), and valve bonnet (23) outside is fluted, cover " O " RunddichtringO (25) in the groove, there is a pore (33) at valve bonnet (23) center, top.

Side, valve body (31) middle part has pore (33) to communicate with valve body (31) inner chamber, and valve body (31) lower side has low groove on the twice, and cover " O " RunddichtringO (28) has pore (33) to communicate with valve body (31) inner chamber in the upper groove in the low groove.There is circular hole at valve body (31) center, lower end.

In valve body (31) inner chamber.Valve rod (32) in the circular hole at valve body (31) center, lower end, stretch out, the twice groove is arranged at valve rod (32) top, cover " O " RunddichtringO (27,29) in the groove, valve rod (32) middle part cover " O " RunddichtringO (30), valve rod (32) upper diameter is greater than lower diameter.Valve rod (32) lower end is positioned at above the contact lever (4).

In Fig. 1,3, contact lever (4) is positioned at above the starter (5), and contact lever (5) right-hand member connects starter (5) right-hand member by screw (3), and starter (5) left end is connected on the fuselage (15), and contact lever (4) gives on contact arm (13) upper end.

Contact arm (13) middle bent, contact arm (13) bottom are enclosed within head (8) outside, and lower left side has spring abutment (34), and spring abutment (34) is gone up dress compression spring (14), and compression spring (14) upper end presses closer head (8) one sides.Contact arm (13) lower edge indentation.Dust cover (12) is enclosed within contact arm (13) outside, enters nail mouthful both sides by what connecting plate (11), bolt (10) were fixed on head (8) right side.

Head (8) right side is entered nail mouthful both sides and is also connected housing-case (1) left end, and there is nail groove housing-case (1) the inside, and promotion bearing assembly (2) is housed.Door bolt sheet (35) is equipped with in housing-case (1) rear end, and it can catch on promoting bearing assembly (2), is convenient to binding in the nail groove.

During use, the inlet chamber part of hand-held fuselage (15) places head (8) on the working face, firmly press down, contact arm (13) moves upward, contact arm (13) upper end presses closer contact lever (4), pulls starter (5), and the valve rod (32) in the valve body (31) moves upward, cause that main piston (19) and jumper bar (17) move downward, and hammer into the iron nail in the head (8) in the workpiece; Unclamp starter (5), valve rod (32) returns back to original state under the effect of spring (24), and main piston (19) and jumper bar (17) also return back to original state.When if head (8) leaves working face and pulls starter (5), because separate with contact lever (5) contact arm (13) upper end, valve rod (32) does not move on not understanding, and main piston (19) and jumper bar (17) be transfixion also, and nailing machine is not worked.Guarantee safe handling, prevented maloperation.

Claims

1, a kind of pneumatic stapler, connect switch by fuselage inlet chamber left end, piston, jumper bar are installed in the fuselage, and the fuselage lower end connects head, and the head right side connects housing-case and forms, it is characterized in that: fuselage inlet chamber left end is installed switch valve, switch valve top is valve bonnet, and the bottom is a valve body, body cavity dress valve rod, shock mount between valve bonnet and the valve rod, contact arm bottom are enclosed within the head outside.

2, pneumatic stapler according to claim 1, it is characterized in that: valve bonnet is enclosed within valve body top, the valve bonnet outside is fluted, cover " O " RunddichtringO in the groove, there is pore on the valve bonnet top, side, valve body middle part has pore to communicate with body cavity, there is low groove on the twice valve body lower portion side, is with one " O " RunddichtringO in the upper groove, has pore to communicate with body cavity in the low groove, valve body lower end has circular hole, valve rod in the body cavity stretches out in the valve body lower end circular hole, and the twice groove is arranged at valve rod top, is with " O " RunddichtringO in the groove, valve rod middle part cover " O " RunddichtringO, the valve rod lower end is positioned at above the contact lever.

3, pneumatic stapler according to claim 1 is characterized in that: the contact arm lower left side has spring abutment, dress compression spring on the spring abutment, and compression spring upper end presses closer head, contact arm lower edge indentation.