CN2677096Y

CN2677096Y - Piston rod location device of nail gun

Info

Publication number: CN2677096Y
Application number: CN 200320112341
Authority: CN
Inventors: 黄傑雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-24
Filing date: 2003-11-24
Publication date: 2005-02-09
Anticipated expiration: 2013-11-24

Abstract

The utility model discloses a piston rod location device of nail gun and it is arranged inside the nail gun. The utility model is composed of two containing grooves, a ring groove, a pair of cylindrical steel balls and a C-shaped clamp; the two containing grooves are respectively through-fitted at two wall surface corresponding location of the bigger diameter end of a nail tube; the ring groove surrounds the wall surface of the nail tube and cross the two containing grooves; the two cylindrical steel balls are respectively positioned inside the two containing grooves; the surface of either cylindrical steel ball is provided with the ring groove; the C-shaped clamp is buckled at the ring groove which is positioned on the wall of the nail tube; the two cylindrical steel balls are fixed inside the containing grooves. The C-shaped clamp buckles the ring groove. The two cylindrical steel balls fixed inside the containing grooves are right located between a transmission tube and the cylinder rod. The exoloma of the cylindrical steel ball contacts the inner wall surface of the transmission tube. The inner edge of the cylindrical steel ball contacts the cylinder rod, forming a small contact face with the cylinder rod but being able to support the cylinder rod to ensure a cylinder rod location device whose ejector pin direction can not be changed.

Description

Ail gun piston rod positioner

Technical field

The utility model relates to a kind of ail gun, relates in particular to a kind of can the contact under the situation in the friction of minimum, make piston rod guarantee the ail gun piston rod positioner that the direction of its back and forth movement can not change.

Background technology

Ail gun is widely used on the constructing operation relevant with cement wall nailing, its main motion characteristic is, utilize gunpowder outburst thrust to push ail gun internal piston bar, in order to the nail spare in the percussion front end nail casket, make the nail part hammer into correct position, utilize back-moving spring that piston rod is resetted again, to reach ejector pin action quickly and easily.

Existing ail gun, in above-mentioned piston rod ejector pin and the back and forth movement that resets, in order to keep the stability of piston rod movement direction, generally all can be at the sheathed piston ring of piston rod front end; But because piston ring is contacted with the piston rod of motion, piston ring has easy deformation, the life-span is short and the big problem of frictional resistance and make.Because frictional resistance is big, cause the direction of motion instability of this piston rod in the transmitting tube relatively, homing action is bad and produce many problems such as improper vibrations and friction noise.

In addition because existing piston ring is arranged on the piston rod in the transmitting tube, in case when piston ring damages, just must waste time and energy with the ail gun integral demounting, until the degree of seeing piston rod, so operate extremely inconvenience tearing group open.

The utility model content

In order to overcome the above-mentioned shortcoming that existing ail gun exists, the utility model provides a kind of assembly few, ail gun piston rod positioner simple in structure, and it can make piston rod guarantee that the direction of its back and forth movement can not change under the friction contact situation of minimum.

The technical scheme that its technical problem that solves the utility model adopts is:

A kind of ail gun piston rod positioner, be arranged on by the body of a gun, handle, signature button, follow closely casket, be positioned at the ail gun inside that transmitting tube, the back-moving spring of body of a gun inside, a piston rod that is arranged on transmitting tube and a nail pipe are formed, the nail pipe is to be contained in the protecgulum of transmitting tube front opening, nail pipe front end extends out in the axis hole of protecgulum, end is established a cushion pad, and this piston rod is contained in nail pipe hollow inside through the axis hole of cushion pad; It is characterized in that it comprises: two tanks are located in wall two correspondence positions that nail is managed the bigger end of caliber respectively; One annular groove is surrounded on nail tube wall face and passes through this two tank; A pair of cylindricality steel ball is contained in this two tanks inside respectively, and each cylindricality steel ball surface also is provided with annular groove; One C clamp is to be fastened on the annular groove of nail tube wall, and this two cylindricalitys steel ball is located in tank; Be fastened on annular groove by C clamp, and the two cylindricality steel balls of in tank, locating, just between transmitting tube and piston rod, internal face by cylindricality steel ball outer rim contact transmitting tube, and by cylindricality steel ball inner edge contact piston bar, form with the piston rod contact-making surface is little and but can guarantee the piston rod positioner that the ejector pin direction can not change by the support piston bar.

The contact-making surface of the utility model cylindricality steel ball and piston rod is minimum, and has significantly reduced frictional resistance and noise, but can guarantee that the ejector pin direction can not change by the support piston bar, can effectively improve the shortcoming of existing piston ring.

The utility model in fact only is to be arranged on the nail tube wall by a C clamp and two cylindricality steel balls; all very convenient simple and easy in the actual dismounting operation; its another characteristics; in actual use; the utility model can guarantee that the piston rod movement direction is stable; improve service life, and can reduce operation vibrations and noise, and have creativity and practicality.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the schematic appearance that the utility model is assembled in an ail gun inside.

Fig. 2 is the partial sectional view of ail gun shown in Figure 1.Demonstrate the relevant position of piston rod positioner among the figure

Fig. 3 is the decomposing schematic representation of the utility model positioner and associated components thereof

Fig. 4 is the assembled sectional view of the utility model positioner

The number in the figure explanation:

10 body of a guies, 11 handles

12 give as security button 13 nail caskets

14 transmitting tubes, 15 protecgulums

16 back-moving springs, 17 piston rods

18 nail pipes, 19 cushion pads

20 positioners, 21 tanks

22 annular grooves, 23 cylindricality steel balls

24 annular grooves, 25 C clamps

The specific embodiment

As shown in Figures 1 and 2, the utility model ail gun piston rod positioner 20 is arranged on ail gun inside; This ail gun comprises the body of a gun 10, handle 11, signature button 12, nail casket 13, the transmitting tube 14 that is positioned at the body of a gun 10 inside, back-moving spring 16, a piston rod 17 that is arranged on transmitting tube 14 and a nail pipe 18.

As Fig. 2, shown in Figure 3, the utility model positioner 20 is arranged on the nail pipe 18 of transmitting tube 14 inside, and this nail pipe 18 is to be contained in the protecgulum 15 of transmitting tube 14 front openings, nail pipe 18 front ends extend out in the axis hole of protecgulum 15, and end is established a cushion pad 19; This piston rod 17 is to be contained in nail pipe 18 hollow inside through the axis hole of cushion pad 19.

The utility model positioner 20 is included in wall two correspondence positions of the bigger end of nail pipe 18 calibers, wears two tanks 21 respectively; One annular groove 22 is surrounded on nail pipe 18 walls and passes through this two tank 21; A pair of cylindricality steel ball 23, be contained in this two tanks, 21 inside respectively, each cylindricality steel ball 23 surface, also be provided with annular groove 24, an and C clamp 25, can be fastened on the annular groove 22 of nail pipe 18 tube walls, and this two cylindricalitys steel ball 23 is located in tank 21, but to form the direction positioner that support piston bar 17 can not fall.

The utility model positioner 20 after combination, its structure as shown in Figure 4, be fastened on annular groove 22 by C clamp 25, and the two cylindricality steel balls 23 of in tank 21, locating, just between transmitting tube 14 and piston rod 17, by the internal face of cylindricality steel ball 23 outer rims contact transmitting tube 14, and by cylindricality steel ball 23 inner edge contact piston bars 17; Because of cylindricality steel ball 23 is little with the contact-making surface of piston rod 17, when piston rod 17 back and forth movements, can significantly reduce frictional resistance and noise, but can guarantee that the ejector pin direction can not change by support piston bar 17, effectively improve the shortcoming of existing piston ring.

The utility model positioner 20 in fact only is two cylindricality steel balls 23 to be clamped on the tube wall of nail pipe 18 by a C clamp 25, in actual dismounting operation, only need screw off the protecgulum 15 of transmitting tube 14 front openings, can take out nail pipe 18 each part, have the easy advantage of easy accessibility with the installation or the positioner 20 that changes the outfit.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of ail gun piston rod positioner, be arranged on by the body of a gun, handle, signature button, follow closely casket, be positioned at the ail gun inside that transmitting tube, the back-moving spring of body of a gun inside, a piston rod that is arranged on transmitting tube and a nail pipe are formed, the nail pipe is to be contained in the protecgulum of transmitting tube front opening, nail pipe front end extends out in the axis hole of protecgulum, end is established a cushion pad, and this piston rod is contained in nail pipe hollow inside through the axis hole of cushion pad; It is characterized in that, comprising:

Two tanks are located in wall two correspondence positions that nail is managed the bigger end of caliber respectively;

One annular groove is surrounded on nail tube wall face and passes through this two tank;

A pair of cylindricality steel ball is contained in this two tanks inside respectively, and each cylindricality steel ball surface also is provided with annular groove;

One C clamp is to be fastened on the annular groove of nail tube wall, and this two cylindricalitys steel ball is located in tank; Be fastened on annular groove by C clamp, and the two cylindricality steel balls of in tank, locating, just between transmitting tube and piston rod, by the internal face of cylindricality steel ball outer rim contact transmitting tube, and by cylindricality steel ball inner edge contact piston bar.