CN2738954Y - Shock-resisting structure of pneumatic tool - Google Patents

Abstract

The utility model relates to a shock-resisting structure of pneumatic tool, which is used for the shock-resisting of the impact unit of the pneumatic tool. The utility model comprises a body which is provided with an installing part. The installing part is provided with a first bearing bore and a containing hole in turn, a first fixing part is arranged at the bottom side of the first bearing bore, and the impart unit is provided with a moving control canister. The moving control canister is provided with a canister body which is hermetically inserted into the containing hole of the body can move. A first shock-resisting element is provided with a telescopic body and the telescopic body is used as a buffering function for the body and the moving control canister. The telescopic body forms a tubular shape which can form a plurality of telescopic reception parts, and the plurality of telescopic reception parts can realize axial deformations and can make the telescopic body compress or stretch.

Description

Air tool shock-damping structure

Technical field

The utility model is relevant with pneumatic tool, is meant a kind of air tool shock-damping structure that is used in especially.

Background technology

Existing pneumatic tool, especially pneumatic reciprocating motion type instrument, the vibrations that its impact unit effect produces are big, but do not have good cushioning effect, allow the user produce the injured work injury of hand easily.

Therefore, promptly have various design and the products that slow down vibrations to keep up a steady flow of on the market, yet its structure is nothing more than members such as use coil springs, the effect of its damping is unsatisfactory, elasticity is to count to be difficult for grasping, and because the factor of high-frequency vibration, this class A of geometric unitA is very easy to damage and takes normal replacing.

The utility model content

Because above-mentioned disappearance, the creator be hammer away and the air tool shock-damping structure of the utility model.

Main purpose of the present utility model is promptly providing a kind of air tool shock-damping structure, and scalable the making of its shock absorber part has preferable damping effect.

An of the present utility model purpose more providing a kind of air tool shock-damping structure, and it is simple in structure, intensity is good, convenience is made and cost is low.

Take off purpose for before reaching, the utility model provides a kind of air tool shock-damping structure, be can be for the usefulness of an air tool impact unit damping, this damping device includes a body and has an installing department, one first holds the hole and a containing hole is opened in this installing department in regular turn, and one first solid portion is located at this first bottom side of holding the hole; It is for this impact unit of installing that one control moves tube, and this control moves tube and has the sealably movable containing hole that is inserted in this body of a stack shell; One first shock absorber part has an extrusome and moves the usefulness that cushions between tube for this body and control, and this extrusome generally is pipe-shape, but and be formed with and somely be subjected to the pars contractilis axial deformation, and make the compressible or stretching of this extrusome.

Description of drawings

Fig. 1 is the side-looking combination section of the utility model one preferred embodiment;

Fig. 2 is the side cutaway view that the utility model one preferred embodiment control moves tube;

Fig. 3 to Fig. 5 is that the distortion hole of the utility model one preferred embodiment shock absorber part is respectively triangular in shape, the structure chart of arc and rhombus;

Fig. 6 is that the distortion hole adds the structure chart of filling out another fender;

Fig. 7 is that the extrusome of this shock absorber part is the structure chart of a fender;

Fig. 8 is the side cutaway view that the utility model one preferred embodiment control moves tube, shows the state of arranged askew;

Fig. 9 is the side cutaway view that the utility model one preferred embodiment control moves tube, shows the state that screw is arranged;

Figure 10 is the side cutaway view that the utility model one preferred embodiment control moves tube, shows that an extrusome is that the whole circle of circumference radially bends shape and is subjected to pars contractilis, and to be that circumferential arrangement is a plurality of radially bend the state that shape is subjected to pars contractilis to another extrusome;

Figure 11 is along 11-11 secant direction cutaway view among Figure 10;

Figure 12 is the side cutaway view that the utility model one preferred embodiment control moves tube, shows that extrusome is the state that a plurality of axial bending shapes of circumferential arrangement are subjected to pars contractilis;

Figure 13 is along 13-13 secant direction cutaway view among Figure 12.

The specific embodiment

More understand characteristics of the present utility model and reached effect by making, lift following preferred embodiment now and cooperate graphic being described as follows:

See also Fig. 1 and Fig. 2, the utility model one preferred embodiment provides air tool shock-damping structure, is to connect to establish an impact unit 8; This damping device includes:

One body 10, has an installing department 11, one grip part 12 connects this installing department 11, one first hold hole 13, a containing hole 14 and one second holds hole 15 and is opened in this installing department 11 in regular turn, an one seal ring ditch 141 and a channeling 142 are located on this containing hole 14 precalculated positions, one first solid portion 16 (is to be a screw in present embodiment) is located at this and first holds an end in hole 13, one second a solid portion 17 and a solid cap 18 (the two is to be same screw in present embodiment) are located at this and second are held hole 15 opening parts, and an airway 19 passes to this channeling 142 by these 12 bottoms, grip part.

Wherein, the seal ring ditch 141 of this body 10 is to be equiped with a sealing ring 71, so that airtight effect to be provided.

One control moves tube 20, have a stack shell 21 movable containing holes 14 that are inserted in this body 10, the periphery of this stack shell 21 is the sealings that are subjected to sealing ring 71, fixed the closing of spiral shell that one air chamber 22 is opened in this stack shell 21 and the screw 23 that communicates supplies this impact unit 8, some passages 24 are passed to the channeling 142 of this body 10 by this air chamber 22.

One first shock absorber part 30, have an extrusome 31 be formed with a mesopore 32, one first connect portion 33 be arranged in integratedly this control move tube 20 stack shell 21, one second connect portion 34 in this extrusome 31 in addition end for the first solid portion 16 that is fixed at this body 10; Wherein, this extrusome 31 is shapes of spring coil twist.

One second shock absorber part 40, have an extrusome 41 be formed with a mesopore 42, one first connect portion 43 be arranged in integratedly this control move tube 20 stack shell 21, one second connect portion 44 in this extrusome 41 in addition end for the first solid portion 16 that is fixed at this body 10; Wherein, this extrusome 41 is cylindrical, and itself and circumference spaced radial are arranged and offered some rectangular poroid distortion holes 45 that are, and some connecting portions 46 are formed at 45 in adjacent distortion hole, and are formed with some pars contractilis 47 that are subjected to.

The above-mentioned control of present embodiment moves tube 20, first shock absorber part 30 and second shock absorber part 40 is one-body molded with the plastics ejaculation, and can make its convenient manufacturing fast; Especially be good to have preferable elasticity and oil resistant and resistance to impact material, as materials such as MC nylon MC NYLON etc., other as rubber, bubble is continuous and elasticity such as excellent power glue and the good material of intensity also can; It is integrally formed that it can be ejaculation, perhaps imposes to fuse, be spirally connected or the combination of riveted joint mode after ejaculation out of the ordinary again.

The operation of present embodiment and start situation are described as follows now:

As shown in Figure 2, each extrusome the 31, the 41st of this first shock absorber part 30 and second shock absorber part 40 all can provide compression and stretcher strain, especially the pars contractilis 47 that respectively is subjected to of this second shock absorber part 40 can provide better compression and stretcher strain, with the usefulness as good damping.

In the foregoing description, this first shock absorber part can be identical structure with this second shock absorber part, and promptly this first shock absorber part also has distortion hole, connecting portion and is subjected to identical important document such as pars contractilis.

Except the foregoing description, this control of the utility model moves tube, first shock absorber part and one second shock absorber part all can remake following variation:

As shown in Figure 3, its distortion hole 45A is separated by for triangle to arrange with forward and reverse; Perhaps, as shown in Figure 4, the curved hole of 45B hole shape, distortion hole of shock absorber part; And as shown in Figure 5, its distortion hole 45C then is a diamond hole; In addition, its distortion hole is also to can be circular hole, elliptical aperture, V font, S shape, trapezoidal or the like; It respectively is out of shape the connecting portion that promptly forms between the hole, the purpose of the flexible damping of same attainable cost utility model distortion.

As shown in Figure 6, be this control move the tube the distortion hole add the structure of filling out another fender 61; And as shown in Figure 7, the extrusome 41A of this shock absorber part is the structure chart of a fender directly, and has axial long hole.

Moreover each is out of shape the arrangement in hole, except aforementioned be radially directly to arranging; As shown in Figure 8, it more can be radially oblique arrangement, and its distortion hole 45D is formed with an angle; Perhaps, as shown in Figure 9, its distortion hole 45E be in the shape of a spiral to arrangement.

The utility model shock absorber part can be following structure again, and its extrusome is to improve enforcement more again, wherein:

In addition, as Figure 10 and shown in Figure 11, the extrusome 31A of this first shock absorber part be the whole circle of circumference radial section be Curved Continuous curved be subjected to pars contractilis 37, the strain that it can provide compression equally or stretch.And this extrusome 41B is that a plurality of axial cross sections of circumferential arrangement are the curved state that is subjected to pars contractilis 47B of Curved Continuous, and is formed with some hole 48A that escape.

Moreover, as Figure 12 and shown in Figure 13, this extrusome 41C be a plurality of axial bending shapes of circumferential arrangement be subjected to pars contractilis 47C, it is formed with some hole 48B that escape equally, it can reach the effect of flexible damping equally.

By above embodiment explanation, it is as follows to conclude characteristics of the present utility model:

1. the air tool shock-damping structure of the utility model, its shock absorber part are that compression and stretcher strain can be provided, and can make to have preferable damping effect.

2. the air tool shock-damping structure of the utility model, its shock absorber part simple in structure, bulk strength is good, convenient make and cost low.

Claims (10)

1. an air tool shock-damping structure is to supply the usefulness of an air tool impact unit damping, it is characterized in that this damping device includes:

One body has an installing department, and one first holds the hole and a containing hole is opened in this installing department in regular turn, and one first solid portion is located at this first bottom side of holding the hole;

One control moves tube, is for this impact unit of installing, and this control moves tube and has the sealably movable containing hole that is inserted in this body of a stack shell;

One first shock absorber part has an extrusome and moves the usefulness that cushions between tube for this body and control, this extrusome in a tubular form, but and be formed with and somely be subjected to the pars contractilis axial deformation, and make the compressible or stretching of this extrusome.

2. according to the described air tool shock-damping structure of claim 1, it is characterized in that: this first shock absorber part is with the plastics ejection formation.

3. according to the described air tool shock-damping structure of claim 1, it is characterized in that: it is to be one with first shock absorber part that this control moves tube.

4. according to the described air tool shock-damping structure of claim 1, it is characterized in that: one of group that the material of this first shock absorber part is continuous for plastics, rubber, bubble and excellent power glue is formed.

5. according to the described air tool shock-damping structure of claim 1, it is characterized in that: the extrusome of this first shock absorber part is to arrange the distortion hole that offers.

6. according to the described air tool shock-damping structure of claim 5, it is characterized in that: this respectively be out of shape the hole periphery arrange be for radially, one of oblique, screw and axial group that forms.

7. according to the described air tool shock-damping structure of claim 5, it is characterized in that: the distortion hole of this shock absorber part is one of group that forms for strip hole, triangle, trapezoidal, rhombus, circle, ellipse, S shape and arc.

8. according to the described air tool shock-damping structure of claim 5, it is characterized in that: the distortion hole of this shock absorber part is to fill out to be provided with fender.

9. according to the described air tool shock-damping structure of claim 1, it is characterized in that: it is curved that the radial section of this extrusome is Curved Continuous.

10. according to the described air tool shock-damping structure of claim 1, it has one second shock absorber part and is arranged in the end in addition that this control moves relative this first shock absorber part.

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