TW200817121A - Pneumatic tool - Google Patents

Abstract

The invention is to provide a pneumatic tool. The pneumatic tool comprises a casing, an operation set, and a front buffering element. The characteristic is that the single front buffering element is set between the sliding space of the front end of the casing and the corresponding end of the sliding base. Therefore, the sliding base pushes to the back end direction of the casing in elasticity. The other end of the sliding base can be inserted in the insert slot set in the sliding space of the back end of the casing in sliding type by the inlet pipe protruded from the switch valve. There is an interval between the end portion of the inlet pipe and the inner wall of the insert slot, so a rear air buffer space is formed between the end of the sliding base and the back end of the casing. Therefore, when the air pressure is guided in it, the end portion of the inlet pipe is pushed by the air pressure to form the volume-enlarging state of the rear air buffering space, and the sliding base slides to the front end of the casing simultaneously to press the front buffer element to cause the cushioning effect. It forms an innovation type that one ends of the sliding base causes the cushioning effect by the air pressure. Therefore, when the pneumatic tool doesn't be used without air, the front buffering element can return to the releasing state completely to extend the operating life. It increases the time with the best buffering effect.

Description

200817121 IX. Description of the invention: [Technical field to which the invention pertains] In particular, the invention relates to a shock absorbing structure. The invention relates to an innovative designer of a pneumatic tool. [Prior Art] According to the traditional pneumatic tools (such as oxygen-driven:, ^, tampering, pneumatic hammers, etc.), the internal piston and the external guard end are generated during the reciprocating motion. , is completely transmitted to the gas red of the pneumatic tool, the housing and the control switch (such as the trigger), that is, the vibration force is all absorbed by the cylinder, the housing and the control switch, so that when the operator holds the pneumatic tool Because the vibration is too severe, it is easy to cause pain and injury to the elbow joint, and the related components are more likely to be damaged by the severe vibration force, resulting in shortcomings of shortened service life and improved maintenance cost. In view of this, there is a “suspended” pneumatic tool damping structure developed by the industry. The conventional structure is as shown in the figure [the figure shows that the pneumatic work is a pneumatic saw]. The components such as the cylinder 12, the switching valve 13, and the tool 14 are combined into a "module" state, and then the integral mold is assembled in a sliding sleeve 15, which is disposed between the front end of the sliding sleeve 15 and the casing 16. A front buffer spring 17 is disposed, and a rear buffer spring 18 is disposed between the rear end of the sliding sleeve 15 and the housing 16. The front and rear buffer springs 17, 18 are elastically supported by the front and rear. 'The sliding sleeve 15 is formed in the housing 16 for reciprocating displacement movement, and the vibration generated by the sliding sleeve 15 during operation will be absorbed by the front and rear buffer springs 17, 18 for transmission to the operator. The vibration force of the hand 200817121 has been greatly reduced. However, this conventional structure has found that the following problems still exist in the actual use experience: Since the front and rear cushioning magazines 17, 18 are in the center of the above-mentioned conventional structure After that 'the normal state (four) is pressed to a certain extent' so no matter whether the pneumatic tool 10 or not In the working state, the front and rear buffer springs 17, 18 will have no release release timing. Therefore, the front and rear buffer springs 17, 18 will be prone to fatigue early due to the constant separation, and the buffering effect cannot be sustained. Use the problem of shortening the life and the shortcomings. Therefore, the problem of the design of the buffer structure of the above-mentioned conventional pneumatic tools is how to develop a kind of technology that can be more ideal and practical: the new structure is subject to the goal and direction of the relevant industry. . +; b Λ明人 has been engaged in the manufacture and development of related products for many years. Therefore, the heart of T f is on the way, after the design and careful evaluation, 、, 仔, a practical invention. SUMMARY OF THE INVENTION The main object of the present invention is to solve the problem of solving the problem, which is based on the conventional, /, 31 from /, the name of the latter two buffer strong, I. The structure is supported by the front and the working center, so that no matter whether the pneumatic tool is used or not, the cushioning will be released without any release. The use of the technique is long-lasting: the evil is in compression and easy to get tired and buffered. Effect 1 The ancient long-lasting, shortened service life and the scoop of blush] pass through to think about the breakthrough; the technical characteristics of the problem of the gas-breaking problem are mainly composed of two parts; the corner of the invention lies in the oxygen tool Only a single front 矣 200817121 punching member is arranged between the sliding space of the front end of the air tool and the front end of the sliding seat, thereby elastically supporting the sliding seat toward the rear end of the housing; and the rear end of the sliding seat is controlled by the switching valve The air inlet extending from the seat is guided by the insertion slot provided in the sliding space of the rear end of the housing, and the air inlet and the inner wall of the insertion slot are left therebetween, thereby obtaining the rear end of the sliding seat and the housing. Forming a rear air floating buffer between the back ends ; Whereby, when the air pressure introduced into the inlet end of the conduit is constituted by the pressure of the buffer space after the air-floating state of the larger volume pushed towards the joint housing causes distal sliding seat slide slightly

Shifting, and further, the cushioning member forms a cushioning action before the pressing, and the one end of the sliding seat is an innovative type that generates a floating cushioning effect by the air pressure, thereby designing that when the pneumatic tool is not ventilated, the front cushioning member will The release state can be fully restored, and the life expectancy can be extended by extending its service life. [Embodiment] The drawings are shown in Figures 2, 3, and 4, which are preferred embodiments of the pneumatic tool of the present invention, but the embodiments are for illustrative purposes only, and the structure is not limited by the structure. The pneumatic tool A of the present embodiment is a pneumatic saw, which comprises: a housing 20 having a sliding space 21 therein, and the rear end of the housing 2 is an air inlet 22, and the air inlet 22 can be In a joint type, the inlet portion 22 is provided with a insertion groove 23 toward the sliding space, and the front end of the housing 2 has a tool assembly portion 24 for setting a predetermined tool 25 (ie, a saw blade). The tool assembly portion 24 can be a sliding seat type; one side of the housing 2 is provided with a control device 26, and the control device 26 can be a buckle handle; 7 200817121. A sliding seat 3〇 The sliding seat 30 is slidably assembled in the sliding space 2i of the housing 20. The sliding seat 30 includes an accommodating space 31. The accommodating space 31 of the sliding base 2 forms a cylinder 43 in the accommodating space 31. There is a side passage between 43, at least all the faces 431 are arranged on the side of the cylinder 43, and the exhaust is provided at the at least all the faces 43 432, the vent hole 432 of the cut surface 43 432 is further provided with an anti-icing member 433, and the anti-icing member 4 is preferably made of a plastic material, and the anti-icing member 4 of the embodiment is a two-arc. The shape of the plate can be achieved by inserting the hole and the column into the positioning state, and the sound of the anti-ice component 433 is set, mainly when the cylinder 43 is operated, the internal airflow is arranged by the row. The vent 3 is directed to the space formed by the outside of the cut surface 431. The rapid flow of the money flow reduces the temperature of the portion, and the portion corresponds to the housing 2 of the pneumatic tool A for the user to hold the part, so that the fear The coldness and discomfort of the user's hand is caused. By the arrangement of the anti-icing member 433, the ice-cold air of the portion can be appropriately isolated from the outer casing 20, thereby preventing the user from being cold. An actuating assembly 40 includes a switching valve seat 41, a pneumatic circuit control assembly 42 and a piston 44; the actuating assembly 4 is set in the accommodating space 31 of the sliding seat=the t-switching valve seat 41 series can be by the foregoing The garment setting 26 controls the opening and closing state thereof, and the switching valve seat μ can be assembled with: a brake valve stem 413 and a return spring 415, by which the switching valve seat 41 can be controlled by the brake valve stem 413 The opening and closing state of the middle-class road 417; the piston 44 is coupled to the tool assembly portion of the casing 2 by an extension rod 441; one end of the switching socket 41 is provided with an intake duct 411, the intake duct The end 4 412 of the 411 is slidably inserted into the insertion slot 23 8 200817121 provided in the air inlet portion 22, and the end portion 412 of the intake duct 411 and the inner wall 2 31 of the insertion slot 23 are left. There is a spacing L (as shown in FIG. 5); the pneumatic control unit 42 may include a main block 421, a top block 422, a bottom plate 423, and a movable plug body 424 stacked thereon, and The three holes are provided with opposite holes 425, which can be combined by the pin body 426. The pin body 426 can be a spring pin (as shown in FIG. 10) or a solid cylinder; The space and gas flow path of the gas path control assembly 42 can be implemented as follows: as shown in Figures 2 and 7, the center of the main block 421 An accommodating groove 427 is disposed for the movable plug body 424 to be movably received therein. The accommodating groove 427 is provided with a venting port 4270 on the side, and a deflecting hole 428 is disposed on the side of the main block 421. The top block 422 has a guiding groove 429 for communicating with the receiving groove 427 of the main block 421 and the flow channel 417 of the switching valve seat 41. The bottom plate block 423 has a through hole 4230 opposite to the bottom end of the movable plug body 424. The bottom side of the bottom plate block 423 is provided with a through hole 4231 communicating with the bottom end of the deflecting hole 428 of the main block 421, and the other end of the through hole 4231 is connected to the bypass channel 430 provided on the side of the cylinder 43; The air floating buffer space B is between the insertion slot 23 and the switching wide seat 41, and between the end portion 412 of the intake duct 411 and the inner wall 231 of the insertion slot 23 in the intake duct 411. a variable volume air pressure accommodating space defined by the formed gap L; a front cushioning member 5Q, which may be a spring, is disposed in the front end sliding space 21 of the casing 20, a fixing portion 27 and a front end of the sliding seat 30 Between (as shown in FIG. 6), the sliding seat 30 is elastically supported by the rear end of the casing 20; A spacer 28 is further disposed between the front cushioning member 50 and the fixing portion 27 of the sliding space 21, so as to further enhance the stability and the buffering effect of the front cushioning structure 9 200817121 50. Extend the service life of the front cushioning member 5〇. Wherein, as shown in the second and seventh figures, one end of the accommodating space 31 of the sliding seat 3 can be provided with a threaded section 32, thereby locking a limiting ring seat 6 〇, and the limiting ring seat 60 has a center The hole 61 is bored for the intake duct 4 11 of the switching valve seat 41. The eccentric region of the limiting ring seat 60 is provided with a venting hole 62. The limiting ring seat 60 is combined and positioned at the bottom end. It is pressed against the top surface of the switching valve seat to form a limit effect. With the above structural composition design, the state of use of the present invention is explained as follows: First, as shown in FIG. 5, when the air intake of the pneumatic tool is connected to the air source, the air pressure W will be via the air intake portion 22. The insertion groove 23 is filled in the intake duct 411 of the switching valve seat 41. At this time, since a gap 匕 is left between the end portion 412 of the intake duct 411 and the inner wall 231 of the insertion slot 23, the air pressure w acts simultaneously. Including the end (4), an axial thrust is generated on the intake duct 4 ι: and constitutes a state in which the rear air floating buffer space is expanded and expanded. At this time, since the switching valve seat 41 and the sliding seat are combined Positioning the body-body and the sliding seat 30 is a "suspension" (four) that can slide in the sliding space 2" of the casing 2, so that the sliding seat 3G is urged toward the front end of the casing (four): a slight slip is generated '胄, as shown in Fig. 6, the other end of the sliding seat Deng will press the front cushioning member 5G, and the front cushioning structure (4) will generate an elastic reaction force by using the bomb 2, thereby forming a sliding (four) front end 5. Second salt: In this case, the sliding seat 3 is configured such that only the front end thereof is buffered by the front cushioning member, and the rear end of the sliding seat 3 is pushed by the air pressure (10 200817121, that is, the air floating buffer space B An innovative unique tectonic type that produces a floating buffer effect. As shown in Fig. 7, when the pneumatic tool A is to be activated, the control device 26 is pressed to drive the brake valve stem 413 of the switching valve seat 41 to slide inward, thereby forming the flow path 417 open state. The air pressure W remaining in the intake valve 411 of the switching valve seat 41 is flowed to the air passage control unit 42 via the flow path 4 17 of the switching valve seat 41, and the air pressure W flows from the flow guiding groove 429 of the top plate block 422 to the main block 421. When the groove 427 is received, the movable plug body 424 _ is pressed downward, so that the air pressure W is diverted from the bias hole 428 of the main block 421 to the through hole 4231 of the bottom plate block 423, and the side of the cylinder 43 is disposed. The bypass channel 430 enters from the bottom of the cylinder 43 and pushes the piston 44 back toward the bottom plate block 423. At this time, the extension rod 441, the tool assembly portion 24 and the tool 25 (shown in Fig. 4) are synchronously generated. In the upward displacement action, the piston 44 pushback process generates a high pressure in the air in the compression cylinder 43, and the high pressure will push up through the opening 4230 in the center of the bottom plate block 423 to push the movable plug body 424 upward. When the plug body 424 is pushed to the top dead center, the top φ plate 4纟2 is closed. The flow cell 429, which in turn temporarily blocks the gas pressure W entering the cylinder 43, on the other hand, when the piston 44 is pushed back to a predetermined height, the residual gas pressure W pushed against the piston 44 will be discharged by the vent hole 432, constituting the piston 44. The bottom side space is in a negative pressure state. At this time, as shown in FIG. 8, the air pressure W will be along the through hole 4220 provided in the top plate block 422 (please refer to FIG. 2) and the through hole 4210 of the main block 421. When the cylinder 44 is reached, the piston 44 is pushed downward, thereby synchronously driving the extension rod 441, the tool assembly portion 24 and the tool 25 (please cooperate with FIG. 4) to generate a downward displacement action, and with the piston 44 As a result of the lowering, the air in the cylinder 43 will be exhausted by the venting opening 432 (as shown in Fig. 8 in Fig. 8 , the movable plug body 424 of 200817121 will pressurize the air pressure W again to form the tool 25 as shown above and below W2. Then, the main block 42; [the middle guide groove 429 of the top plate block 422 is introduced into the state shown in Fig. 7, and the state of the rapid reciprocating operation is repeated. According to the figure shown in Figure 11, it is another type of embodiment of the anti-icing component that is assembled in the outer circumference of the exhaust, the shovel, and the 420.

n The anti-ice member 433B is a cylindrical shape, so that the sliding seat 30 is further provided with a ππ τ corresponding to the cut surface 431 and has a concave surface 434 for the cylindrical position. By. The anti-ice component 433 sets the advantages of the present invention. The present invention compares the known effect enhancement analysis to the following facts: Conventional technology: Support 2: Dynamic tool: The set is supported by the front and rear buffers* relative top 'Squeeze: the stupid box so that the other, the rear buffer spring is normally normal after assembly and positioning. Therefore, no matter whether the pneumatic tool is in the working state or not, the buffering elastic will not release the timing, so the front, = The yellow will be easy to produce fatigue because the normal state is in compression, so as to reduce the effect of the effect, the service life is shortened, and the defect is short. The present invention: The pneumatic visor disclosed in the correction of 9 ^ month only uses a single-front cushioning member group disposed between the front end sliding space 21 and the front end of the sliding seat 3 ,, thereby elasticizing the rear end direction of the sliding double body 20 The top support; and the rear end of the sliding seat 12, 200817121 is slidably inserted into the sliding groove 21 of the rear end of the casing 20 by the intake duct 411 extending from the switching valve seat 41, and the cover is provided. A gap is left between the end portion 412 of the air inlet duct 411 and the inner wall 231 of the insertion slot 23, thereby forming a rear air cushioning buffer B between the end of the sliding seat and the rear end of the housing. When the air pressure is introduced, the end portion of the air intake duct 4 ιι will be pushed by the pressure to form a state in which the rear air floating buffer space B is stretched and expanded, and the sliding portion 30 is urged toward the front end of the housing 2 Sliding, and then pressing, the cushioning member 5D forms a buffering effect, and an innovative type in which the sliding seat 3 () is configured to generate a floating buffer effect by the air pressure (that is, the volume change of the air floating buffer space B) is formed. With this unique design, when the pneumatics are not ventilated, due to the air-floating The gas pressure in the buffer space will be lost: no thrust will be caused to the /f moving seat 30. Therefore, the elastic tension of the front cushioning member 5Q can be completely released to the uncompressed state, so that the dust force can be prevented from being ventilated in the pneumatic tool. The material is relieved, and the service life can be prolonged, so that the aging time of the optimal cushioning effect of the front cushioning member 50 is greatly increased. The new effects that can be produced by the present invention are as follows: 卜: The cylinder 43 is integrally formed by the sliding space 31 of the sliding seat 3〇, which can reduce the cost of mold manufacturing and processing, and achieve the cost-effective industrial utilization benefit. - The main seat block 421, the top block 422, and the bottom (four) 423 of the road control assembly 42 are combined with the lock body 426. The spring lock can be used for the spring lock and the elastic contraction. The assembly process of the main block 421, the top block 422, and the bottom plate block 423 is more convenient and fast, and has better positioning efficiency. 13 200817121 3, the advantages of the fruit. The purpose of the separation of the hole 432 of the anti-icing and cooling member 433 to the outside of the cut surface 431 is to achieve proper separation. The present invention can be specifically described by the above embodiments of the present invention, and the specific terms are used herein to describe the exhaust air of the cylinder 43 and the outer casing 20 to prevent the user's hand from being cold. The scope of the invention is not limited thereto, and those skilled in the art can change and modify the spirit and principles of the invention to achieve equivalent purposes, and such changes and modifications are It should be covered in the scope of the patent application scope as described later. 1

14 200817121 [Simplified description of the drawings] Fig. 1 is a cross-sectional view showing the structure of a conventional pneumatic tool. Fig. 2 is an exploded perspective view of a preferred embodiment of the present invention. Figure 3 is a combined perspective view of a preferred embodiment of the present invention. Figure 4 is a cross-sectional view of a combination of preferred embodiments of the present invention. Fig. 5 is a schematic view of the actuation state of the present invention. Figure 6 is a schematic diagram 2 of the actuation state of the present invention.

Fig. 7 is a schematic diagram 3 of the operating state of the present invention. Figure 8 is a fourth schematic diagram of the actuation state of the present invention. Fig. 9 is a transverse sectional view showing a cylinder portion of the present invention. Fig. 10 is a perspective view of the components of the pneumatic tower of the present invention, which are assembled by a combination of bullets and bolts. Fig. 1 is an illustration of another embodiment of the anti-icing member of the present invention. [Explanation of main component symbols] Φ Conventional part: Piston 11 switching valve 13 Sleeve 15 Front buffer spring 气动 Pneumatic tool 1 〇 cylinder 12 1 14 housing 16 rear buffer spring 18 Part of the invention: 15 200817121

Pneumatic tool A Housing 20 Inlet 22 Inner wall 231 Tool 25 Fixing part 27 Sliding seat 30 Threaded section 32 Actuating assembly 40 Intake duct 411 Brake stem 413 Flow path 417 Pneumatic control unit 42 Through hole 4210 Through hole 4220 4230 movable plug body 424 pin body 426 vent port 4270 guide groove 429 cut surface 431 sliding space 21 plug groove 23 tool set portion 24 control device 26 spacer 28 accommodating space 31 switching valve seat 41 end portion 412 return spring 415 main Block block 421 Top plate block 422 Floor plate block 423 Through hole 4231 Perforation 425 Locating groove 427 Bias hole 428 Cylinder 43 Vent hole 432 16 200817121

Anti-ice component 433, 433B Piston 44 Front cushioning member 50 Limiting ring seat 60 Venting hole 62

Rear air floating buffer space B concave surface 434 extension rod 441 through hole 61

17

Claims (1)

200817121, the scope of application for patents: a kind of pneumatic tools, including · a body, in which the jig eye port has a sliding space, the rear end of the casing, the air intake direction, the wind and the day of the office are the air intake The front end has a tool group message #^ socket, and the body is set; eight, 'and 6 again.卩, and one side of the housing is provided with a control compartment, wherein the sliding seat is slidably assembled in the housing. 4" space" the capacity of the sliding seat * has a cylinder;, upper, actuating assembly, the set of the set is located in the actuating assembly has a switching valve seat, the control device controls its opening and closing, an intake duct, the intake duct end In the insertion groove of the gas portion, a gap is left between the inlet and the inner wall; in the accommodating space of the sliding seat, the switching valve seat can be extended by the end of the switching valve seat. Sliding insert at the end of the intake duct and the insertion slot The post-milk buffer space is defined by the spacing between the insertion groove and the switching valve seat in the intake duct and the space formed between the end of the intake duct and the inner wall of the insertion slot. The first cushioning member is disposed between the fixing portion of the sliding space of the front end of the housing and the corresponding end of the sliding seat, so as to elastically support the sliding seat toward the rear end of the housing. According to the swaying tool of claim i, wherein the actuating component further comprises a pneumatic control component and a piston, wherein the active 18 200817121 tool set is connected; the pneumatic plug is borrowed Extension rod and housing work A rope, a top plate, a bottom plate, and the three are provided with opposing punching tools, wherein the combination can be worn by the pin body. The pneumatic pin body according to item 2 of the patent application scope may be a spring pin. 4. The pneumatic tool according to the patent application specification 1 jg ^ -X' ^ ^ ^月寸〜祀固乐丄, wherein the cylinder can be integrally formed by the housing space of the sliding seat. 5. A pneumatic tool according to the scope of claim 4 or 4, wherein the cylinder side may be provided with a venting opening. 6. The pneumatic tool according to claim J or 4, wherein the cylinder side can be provided with a cutting surface, and the exhaust hole is opened in the at least one flat surface, and the outer circumference of the exhaust hole is provided with anti-icing member. 7. The pneumatic tool according to claim 6, wherein the anti-icing member may be of a two-arc plate type or a cylindrical type. 8. The pneumatic tool according to claim 1, wherein the sliding seat has a threaded section at one end of the receiving space, thereby locking a limiting ring seat, and the limiting ring seat has a thread in the center. A hole is provided for the intake duct of the switching valve seat to pass through, and an eccentric region of the limit ring seat is provided with a vent hole. 9. The pneumatic tool according to claim 1, wherein the front cushioning member and the fixed portion of the sliding space are further provided with a sliding piece 19, a sliding seat of a pneumatic tool, the sliding seat is The sliding seat is slidably assembled in a sliding space of the air tool housing, the sliding seat includes a valley space for receiving the predetermined actuating component, and the housing of the sliding seat has a cylinder; . The air red system is integrally formed by the sliding space of the sliding seat. 1 sliding of the pneumatic tool as described in item i of the patent application scope The seat, wherein the actuating assembly can include a switching valve seat, a pneumatic control assembly, and a piston. 2' The sliding seat of the pneumatic tool according to the above-mentioned patent application scope, wherein the pneumatic circuit control assembly may comprise a main block, a top plate block, a bottom plate block and a movable plug body stacked, and The three are provided with opposite perforations, which can be worn by the pin body. 3. A sliding seat for a pneumatic tool according to claim 12, wherein the pin body may be a spring pin or a solid body. 20