CN100360283C

CN100360283C - Stapler buffer

Info

Publication number: CN100360283C
Application number: CNB2005100002510A
Authority: CN
Inventors: 温铭汉
Original assignee: De Poan Pneumatic Corp
Current assignee: De Poan Pneumatic Corp
Priority date: 2005-01-07
Filing date: 2005-01-07
Publication date: 2008-01-09
Anticipated expiration: 2025-01-07
Also published as: CN1799778A

Abstract

The present invention discloses a buffer of a nailing gun, which comprises a circle of annular outer pads and another circle of annular inner pads, wherein the circle of annular outer pads are inlaid at the bottom of a cylinder chamber of the nailing gun, and the circle of annular inner pads are inlaid in the outer pads; the inner and the outer pads are all made of flexible rubber materials, and a plurality of axial convex ribs are arranged between the inner and the outer pads to form a plurality of axial rid grooves which surround with equal intervals; the top of each axial rid groove is communicated with the cylinder chamber of a bottom layer of a nail striking piston, the bottom of each axial rid groove is provided with an axial signal channel and a radial signal channel which are communicated, and each radial signal channel can pass through a center through hole of each inner pad and is communicated with the cylinder chamber and a hole of a nail striking rod at the bottom end of the cylinder chamber. Therefore, the present invention is favorable to exhaust heat energy which occurs because of the reciprocating motion of the nail striking piston in the cylinder chamber and increase a surface area for being favorable to dissipate heat between the inner and the outer pads so as to enhance the heat dissipating capability and the durability of the buffer.

Description

The buffer of ailing machine

Technical field

The present invention relates to a kind of buffer of ailing machine,, and have the venting flow path of heat transmission between the inside and outside pad particularly by the buffer of pad in the annular with outer pad be combined into.

Background technology

The buffer of ailing machine is that group is put in the bottom of rifle body inside cylinder chamber, and the suppressing action power when absorbing the downward nail hitting of nail hitting piston in the cylinder chamber makes the nail hitting piston avoid impaired shock-absorbing assembly.

As everyone knows, in order to absorb the suppressing action power of nail hitting piston, traditional buffer, great majority all are to use flexible glue material to make, but because the nail hitting piston continues back and forth to drive the running of nail hitting in cylinder chamber, can make to produce high temperature in the cylinder chamber, force buffer glue material to be easy to heat ageing and be full of cracks, be unfavorable for the durable use that withstands shocks.For overcoming this problem, selecting for use heat resistant type glue material to make buffer has been instant solution.

In addition, promote the heat-sinking capability of buffer in cylinder chamber, also can prolong the service life of buffer.Under this design, the shape of buffer or structure body except possessing good damping capaicty, outside the durable impact of bearing the nail hitting piston, also must possess good heat-sinking capability, and the buffer durability is strengthened.But no matter the market finding is that individual pen ring or two circle loops close the buffer of form, and the heat-sinking capability indoor at the high temperature cylinder is all obviously not enough, to such an extent as to influenced the life-span of durable use.

Summary of the invention

The purpose of this invention is to provide a kind of buffer of being convenient to be installed in the cylinder chamber bottom of ailing machine, possess good shock-absorbing and heat-sinking capability, being beneficial to can increase the service life that buffer bears the durable impact of nail hitting piston under cylinder chamber's environment of high temperature.

For achieving the above object, the present invention takes technical scheme: a kind of buffer of ailing machine includes an interior pad and an outer pad that heat-resisting flexible glue material is made; Should in spacer one central through hole, and the outer wall of outer pad is formed with a stopper, described stopper is embedded at the cylinder chamber bottom, pad is embedded that pad is inner outside in this; Movable sleeve is provided with blow nail piston in this cylinder chamber, cylinder chamber is separated into top layer and bottom cylinder chamber, the nail hitting piston base is formed with the nail hitting bar, bottom cylinder chamber bottom has an anvil and chute and is fixed on rifle body bottom surface, has the bar hole on the anvil and chute, its activity wears the nail hitting bar, and wears bar hole behind the nail hitting bar and have the gap and communicate with ambient atmosphere;

Had a plurality of axial fin between should interiorly filling up and fill up outward, and the interval forms a plurality of axial rib grooves that equidistantly center on, each rib groove top is connected with bottom cylinder chamber, and each rib trench bottom has the axial channel that is connected and channel radially, respectively radially channel is connected with interior pad central through hole, form a plurality of venting flow path thereby construct, be communicated between the gap in bottom cylinder chamber and its bar hole, bottom.

In the buffer of above-mentioned ailing machine, in described a plurality of axial fins are formed on the outer wall of pad, and the outside wall surface of each fin is the scalene cone form, and embedding is held in the tilted prick hole that outer pad offered.

In the buffer of above-mentioned ailing machine, described a plurality of axial fins are formed on the inner hole wall of outer pad, and the outside wall surface of each fin is the scalene cone form, in embedding is held on the outer wall of pad.

In the buffer of above-mentioned ailing machine, the stopper on the described outer pad is embedded on the caulking groove of the rifle body inside of bottom cylinder chamber bottom being offered.

In the buffer of above-mentioned ailing machine, the stopper on the described outer pad is embedded in bottom cylinder locular wall bottom.

In the buffer of above-mentioned ailing machine, described venting flow path can be disposed to the external world through the bar hole with heat energy guiding between hot gas in the bottom cylinder chamber and inside and outside pad when the downward nail hitting of nail hitting piston.

In the buffer of above-mentioned ailing machine, when described venting flow path upwards resets at the nail hitting piston, can guide the extraneous normal temperature air that sucks from the bar hole, and between inside and outside pad, form the convection gas that is beneficial to heat exchange, enter in the bottom cylinder chamber.

The present invention is owing to take above design, it has the following advantages: 1, among the present invention, be formed with venting flow path between outer pad and the interior pad, thereby can make the gaseous exchange around the inside and outside pad, help heat exchange, can can regulate the temperature in the bottom cylinder chamber simultaneously again in the lump for the usefulness of heat radiation simultaneously, effectively enhance the heat-sinking capability and the durability of buffer.2, the venting flow path among the present invention, pad and outer pad use bearing the breathing space that the nail hitting piston presses down when impacting in also can be used as, and the radially channel position of interior rebasing both sides has bigger floor space, the footpath body thickness of the stopper position of outer pad also can be made into comparatively abundant form, just can have under the situation of damping capaicty, promote the impact strength of buffer, help to prolong the service life of buffer.3, the present invention also has advantages such as simple in structure, easy for installation, with low cost.

Description of drawings

Fig. 1 is the three-dimensional exploded view of first embodiment of the invention, illustrates in a cylinder chamber's bottom group that is provided with the nail hitting piston to establish in one pad and outer the pad.

Fig. 2 is the cut-away view of first embodiment of the invention, illustrates interior pad embedding group is filled up inside outside, and will fill up outward on the caulking groove of the rifle body inside that is embedded in bottom cylinder wall bottom.

Fig. 3 is another cut-away view of first embodiment of the invention, and pad is subjected to the state that the nail hitting piston presses down impact with outer pad in illustrating.

Fig. 4 is a first embodiment of the invention cut-away view again, illustrate the nail hitting piston press down impact in pad and the outer pad back state during involution upwards.

Fig. 5 is the decomposition cut-away view of second embodiment of the invention, and explanation can be prolonged a plurality of axial fins system and is formed on the outer inwall that fills up.

Fig. 6 is the cut-away view of third embodiment of the invention, illustrates interior pad embedding group is filled up inside outside, and will fill up the form that is embedded in the cylinder wall bottom outward.

The specific embodiment

In order to implement the present invention, in Fig. 1 to Fig. 4, disclose the necessary member assembly relation of first embodiment of the buffer of ailing machine of the present invention, this buffer by the flexible glue material of heat resistant type (for example heat resistant rubber) make one in pad 1 and 2 (as shown in Figure 1) of another outer pad formed, and be that group of buffers is fitted over cylinder chamber 4 bottoms (as shown in Figure 2) in the rifle body 3, movable sleeve is provided with blow nail piston 5 in this cylinder chamber 4, cylinder chamber's 4 active intervals are formed top layer cylinder chamber 40 and bottom cylinder chamber 41 (as shown in Figure 4), these nail hitting piston 5 bottoms are formed with nail hitting bar 51 and wear and be stated from the bottom cylinder chamber 41, and bottom cylinder chamber 41 bottoms have an anvil and chute 6 and are fixed on rifle body 3 bottom surfaces, have activity on this anvil and chute 6 and wear the bar hole 61 of nail hitting bar 51 usefulness, this bar hole 61 wears to have the gap behind the nail hitting bar 51 and can be connected with ambient atmosphere.Wherein:

Should be a circle annular solid by interior pad 1, the center has a through hole 10 (as shown in Figures 1 and 2), be formed with the radial axial fin 11 that a plurality of equi-spaced apart are arranged on the outer wall in interior 1 ring week of pad, the outside wall surface 12 of each axial fin 11 is made the scalene cone form, and between each axial fin 11, form a plurality of axial rib grooves 13 that equidistantly center at interval, each axial rib groove 13 top is connected with bottom cylinder chamber 41, and each axial rib groove 13 bottom is formed with the axial channel that is connected 14 and channel 15 radially, each radial passage 15 and can be simultaneously via the central through hole 10 of interior pad 1, and be connected with the bar hole 61 of bottom cylinder chamber 41 and bottom thereof.

Should enclose annular solid with being one by outer pad 2, the center is provided with a tilted prick hole 20, have the oblique cone angle identical with the outside wall surface 12 of above-mentioned each axial fin 11, so that pad 1 embedding group in above-mentioned filled up outside in 2 the tilted prick hole 20, and the outside wall surface 12 of each axial fin 11 can be held on the hole wall of tilted prick hole 20 in embeddings; Simultaneously, fill up outward between 2 outer wall and be formed with a stopper 21 at least, can be embedded in the present embodiment on the caulking groove of rifle body 3 inside of bottom cylinder chamber 41 bottoms offering 31, inside and

outside pad

1 and 2 all can be had be difficult for loosening stability.

By above-mentioned group of configuration attitude, make each axial rib groove 13 of inside and

outside pad

1 and 2, axially channel 14, radially 10 of the central through holes of channel 15 and interior pad 1 are constructed several venting flow path that form in the buffer, and be communicated between the gap in bottom cylinder chamber 41 and its bar hole, bottom 61; And these venting flow path have the effect of the surface area that increases inside and outside pad 1 and 2.Therefore, when the downward nail hitting of nail hitting piston 5 (as shown in Figure 3), these venting flow path can be guided the hot gas in the

bottom cylinder chamber

41 and 2 heat energy that absorbed of interior pad 1 and outer pad and be disposed to the external world through nail hitting bar hole 61; Change when nail hitting piston 5 upwards resets (as shown in Figure 4), can produce a swabbing action power, and 61 draw extraneous normal temperature air, enter in the bottom cylinder chamber 41 via inside and outside pad 1 and 2 s' venting flow path from the bar hole; Make inside and

outside pad

1 and 2 gaseous exchange on every side, help heat exchange, can regulate the temperature in the bottom cylinder chamber 41 simultaneously again in the lump for the usefulness of heat radiation simultaneously, effectively enhance the heat-sinking capability and the durability of buffer.

Above-mentioned venting flow path, pad 1 and outer pad 2 use bearing the breathing space that nail hitting piston 5 presses down when impacting in also can be used as, and radially channel 15 positions of interior pad 1 two bottom sides have bigger floor space, the footpath body thickness of stopper 21 positions of outer pad 2 also can be made into comparatively abundant form, just can possess under the situation of damping capaicty, promote the impact strength of buffer, also help to prolong the durable life-span of buffer.

Other is the person, the present invention discloses the member configuration of second embodiment in Fig. 5, mainly with a plurality of the axial fins 11 on the pad 1 in above-mentioned, be altered to and extend to form the radial axial fin 22a that a plurality of equi-spaced apart on the inner hole wall 25 of outer pad 2a are arranged, and the outside wall surface 23a of each axial fin 22a also can be made into the scalene cone form, and make between each axial fin 22a, form a plurality of axial rib groove 24a that equidistantly center at interval, be connected with radial passage 15a with each axial passage 14a, and be built into the venting flow path of assembly form same as the previously described embodiments with interior pad 1a bottom side.

In addition, each axial channel of rebasing side and channel radially in above-mentioned, reciprocity position is prolonged system and is formed radial flank on also can the inwall by outer pad, and make axial channel or and radially channel be set on the outer pad, also can produce the assembly form of identical venting flow path.In other words, form above-mentioned heat transmission venting flow path, all should belong to application category of the present invention so long as between inside and outside pad, construct.

Moreover, the present invention discloses the member configuration of the 3rd embodiment in addition in Fig. 6, it mainly is the buffer that assembling can compatible coupling in different rifle body environment, comprise body according to nail hitting piston 5b bottom, and also being made, inside and

outside pad

1b and 2b top can be overlayed the body that touches synchronously, pad 1b and outer pad 2b can bear the active force that nail hitting piston 5b presses down impact synchronously in making, to give full play to the effect of buffering.In addition,, be that the stopper 29 of will fill up on the 2b outer wall is embedded at bottom cylinder wall 42 bottoms outward, inside and outside pad 1b and monarch 2b had be difficult for loosening stability that all the other contents are all same as the previously described embodiments with the foregoing description difference.

The above only is a preferable possible embodiments of the present invention, so the equivalence of being done according to claim scope of the present invention changes such as, ought to be included within protection scope of the present invention.

Claims

1, a kind of buffer of ailing machine includes an interior pad and an outer pad that heat-resisting flexible glue material is made; Should in spacer one central through hole, and the outer wall of outer pad is formed with a stopper, described stopper is embedded at the cylinder chamber bottom, pad is embedded that pad is inner outside in this; Movable sleeve is provided with blow nail piston in this cylinder chamber, cylinder chamber is separated into top layer and bottom cylinder chamber, the nail hitting piston base is formed with the nail hitting bar, bottom cylinder chamber bottom has an anvil and chute and is fixed on rifle body bottom surface, has the bar hole on the anvil and chute, its activity wears the nail hitting bar, and the bar hole wears and has the gap behind the nail hitting bar and communicate with ambient atmosphere; It is characterized in that:

2, the buffer of ailing machine according to claim 1 is characterized in that: in described a plurality of axial fins are formed on the outer wall of pad, and the outside wall surface of each fin is the scalene cone form, and embedding is held in the tilted prick hole that outer pad offered.

3, the buffer of ailing machine according to claim 1 is characterized in that: described a plurality of axial fins are formed on the inner hole wall of outer pad, and the outside wall surface of each fin is the scalene cone form, in embedding is held on the outer wall of pad.

4, the buffer of ailing machine according to claim 1 is characterized in that: the stopper on the described outer pad is embedded on the caulking groove of the rifle body inside of bottom cylinder chamber bottom being offered.

5, the buffer of ailing machine according to claim 1 is characterized in that: the stopper on the described outer pad is embedded in bottom cylinder locular wall bottom.

6, the buffer of ailing machine according to claim 1 is characterized in that: described venting flow path can be disposed to the external world through the bar hole with heat energy guiding between hot gas in the bottom cylinder chamber and inside and outside pad when the downward nail hitting of nail hitting piston.

7, the buffer of ailing machine according to claim 1, it is characterized in that: when described venting flow path upwards resets at the nail hitting piston, can guide the extraneous normal temperature air that sucks from the bar hole, and between inside and outside pad, form the convection gas that is beneficial to heat exchange, enter in the bottom cylinder chamber.