TWM517079U - Reciprocating pneumatic tool - Google Patents

Description

Reciprocating pneumatic tool

This creation is about a reciprocating pneumatic tool, especially a pneumatic tool that uses a gas-driven method to push a workpiece to reciprocate, improve work speed, save time and effort, and reduce cost.

According to the current reciprocating tool, the piston shaft or the cam is driven by the driving of the power tool, or the working piece is directly driven to reciprocate for the purpose of operation; and the reciprocating driving device drives the moving working piece Reciprocating motion, its mechanical structure is complex, the number of parts is large, and the assembly is complicated. When the reciprocating drive device is damaged, it is difficult to directly judge the damaged part, resulting in the need for overall disassembly to be repairable, and because of the large number of parts, It is inconvenient for disassembly and maintenance.

In order to solve the above-mentioned shortcomings, a reciprocating pneumatic tool (or impact tool) is designed by the manufacturer. The pneumatic tool uses a high-pressure gas to drive an impact member to reciprocate the working piece, so that the working piece is repeatedly struck by the impact member. The force is driven to reciprocate, and thus can be cut, cut, and cut. The operator, as disclosed in the "Power Driven Hammer" patent of No. 201028260, includes a main body, a sleeve and a block, and is provided therein. a plurality of air flow passages, and the valve body is used to change the passage of the air flow, so that the block body is driven to reciprocate upward (or downward) by the air, so that the block can reciprocally impact the workpiece to cut, cut or break the material. .

However, since the pneumatic tool described above utilizes the valve body to switch the passage of the air flow, the valve body is also movable by the air flow, so that it is easy to cause unstable movement of the valve body and is easy to generate. Vibration, displacement, and thus the switching of the channel is unstable, so that the block does not smoothly reciprocate, and it is easy to cause the valve body card to abut at the switching position, so that the air cannot be smoothly switched, thereby affecting the smoothness of the operation.

The purpose of this creation is to improve the lack of the above-mentioned pneumatic tools, and to provide a pneumatic tool that uses a gas-driven method to push the workpiece to reciprocate, improve the working speed, save time and effort, and reduce the cost.

In order to achieve the above object, the reciprocating pneumatic tool of the present invention comprises an operating body, a first air flow switching seat, a second air flow switching seat and an impact block; wherein: the operating body is configured to provide high pressure air and operate the body An air flow passage is provided, and an operating valve is disposed on the operating body; the first air flow switching seat is pivotally coupled to the operating body, and includes a joint, the joint is provided with a groove, and the joint side edge ring is provided with a plurality of a slot, the slot is in communication with the groove, the air flow sleeve is sleeved on the lower side of the joint, and the first chamber is disposed in the center of the air flow sleeve, and the air flow sleeve wall is provided with a plurality of air flow channels, the air flow channel The lower end is connected to the first chamber; the second air flow switching seat is pivotally coupled to the first air flow switching seat, and the second air flow switching seat is provided with a second chamber and a jack in the center, so that the second air chamber is The jack is connected, and the second chamber and the jack are in communication with the first chamber of the first airflow switching seat; and the sidewall of the lower end of the second airflow switching seat is provided with a plurality of perforations, so that the through hole is Jack connected, this Bore and is provided with a ball, the second gas stream is provided with a switching spring seat lower cover and a sleeve, the sleeve can be so by a spring The top cover and the closed cover are placed on the perforations and the steel balls so that the work piece can be provided; further, the sleeve is provided with a plurality of grooves corresponding to the number of perforations; and the second air flow switches the side walls of the seat a plurality of venting holes are provided, the venting holes are in communication with the second chamber; and a spring is disposed in the second chamber; the impacting block is disposed in the first chamber of the first airflow switching seat and Sliding in the first chamber, the impact block has a stepped cylinder; a top air passage is disposed at a top end of the impact block, and a plurality of second air passages are disposed on the side wall of the impact block, so that the second air passage is The first air passage is connected; thereby, the utility model provides a pneumatic tool for driving the workpiece to reciprocate by using a gas driving method, thereby improving the working speed, saving time and labor, and reducing the cost.

10‧‧‧Operating the body

11‧‧‧Air passage

12‧‧‧ switch valve

13‧‧‧ gas pipeline

20‧‧‧First air flow switcher

21A‧‧‧ connector

21B‧‧‧Airflow sleeve

211‧‧‧ Groove

212‧‧‧ slots

213‧‧‧ first chamber

214‧‧‧ Ring groove

215‧‧‧Air passage

30‧‧‧Second air flow switcher

31‧‧‧Second chamber

32‧‧‧ jack

33‧‧‧Perforation

34‧‧‧ steel balls

35‧‧‧ Spring

36‧‧‧Sleeve

361‧‧‧ Groove

37‧‧‧ venting holes

38‧‧‧ Spring

40‧‧‧impact block

41‧‧‧ Push top

42‧‧‧ Middle section

43‧‧‧Beat Department

44‧‧‧First airway

45‧‧‧Second airway

50‧‧‧Workpieces

50A‧‧‧Workpieces

51‧‧‧Plunger

The first picture is a three-dimensional exploded view of the creation.

Figure 2 is a cross-sectional view of the creation.

Figure 3 is a cross-sectional view of the creation and a schematic diagram of the input of high pressure gas from the operating body.

Figure 4 is a partial cross-sectional view of the creation and a schematic diagram of the high pressure gas input first air flow switching seat.

Figure 5 is a partial cross-sectional view of the creation and a schematic diagram of the high pressure gas pushing the impact block upward.

Figure 6 is a partial cross-sectional view of the creation, and a schematic diagram of the high pressure gas passing through the passage provided by the impact block and the air passage above the first chamber.

Figure 7 is a partial cross-sectional view of the creation, and the high pressure gas pushes the impact block downwards. intention.

Figure 8 is a partial cross-sectional view of the present invention, and a schematic view of the impact block moving upward again and the gas is discharged from the first air passage and the second air passage of the impact block to the second chamber.

Figure 9 is a partial cross-sectional view of the present invention, and a schematic view in which the impact block is again forced to move upward and the gas in the second chamber is discharged from the vent hole.

Figure 10 is a partial cross-sectional view of the present invention, and a schematic view of pushing the sleeve back and moving the steel ball away from the work piece to pull the work piece out.

Figure 11 is a partial cross-sectional view of the present invention, and a schematic view of replacing another work piece and the steel ball abutting against the work piece so as not to slide out.

Regarding the technical means used for the purpose of this creation, we will cooperate with the examples shown in Figures 1 to 11 to explain in detail as follows:

As shown in FIG. 1, the reciprocating pneumatic tool of the embodiment includes an operating body 10, a first airflow switching seat 20, a second airflow switching seat 30, a striker block 40 and a work piece 50; wherein:

The operating body 10 (please refer to FIG. 2 at the same time) is used for providing high-pressure air injection. The operating body 10 is provided with a passage 11 and an operating valve 10 is provided with an on-off valve 12 for controlling the opening of the passage 11. The operating body 10 is connected to an air pipe 13 .

The first air flow switching seat 20 (please refer to FIG. 2 at the same time) is pivotally coupled to the operating body 10, and includes a joint 21A. The joint 21A is provided with a groove 211, and the joint 21A is provided with a plurality of side edges. The slot 212 is connected to the groove 211. The lower side of the joint 21A is sleeved with an air flow sleeve 21B, and the first sleeve chamber 213 is disposed at the center of the air flow sleeve 21B. The lower side wall of the first chamber 213 is provided with a ring groove 214. Further, the air flow sleeve 21B is axially provided with a plurality of air flow passages 215. The top end of the air flow passage 215 corresponds to the slot 212 of the joint 21A, and the bottom of the air flow passage 215 The end is connected to the annular groove 214 such that the lower end of the air flow passage 215 communicates with the first chamber 213.

The second airflow switching seat 30 (please refer to FIG. 2 at the same time) is pivotally coupled to the first airflow switching seat 20, and the second airflow switching seat 30 is provided with a second chamber 31 and a socket 32 in communication. And the second chamber 31 and the socket 32 are connected to the first chamber 213 of the first air flow switching seat 20; and the side wall of the lower end of the second air flow switching seat 30 is provided with a plurality of through holes 33. The through hole 33 is connected to the insertion hole 32, and a steel ball 34 is disposed in the through hole 33. The lower end of the second air flow switching seat 30 is sleeved with a spring 35 and a sleeve 36, so that the sleeve 36 can be closed by the top of the spring 35. The cover is disposed on the through hole 33 and the steel ball 34. The sleeve 36 is provided with a plurality of grooves 361 corresponding to the number of the perforations 33. Further, the second air flow switching seat 30 has a plurality of exhaust holes 37 therein. The vent hole 37 is in communication with the second chamber 31; further, a spring 38 is disposed in the second chamber 31 of the air flow switching seat 30.

The impact block 40 (please refer to FIG. 2 at the same time) is disposed in the first chamber 213 of the first air flow switching seat 10 and slidable in the first chamber 213, and the impact block 40 is supported from top to bottom. Forming the push top 41, the middle section 42 and the striking portion 43, the outer diameter of the push top 41 is the same as the inner diameter of the first chamber 213 provided by the first air flow switching seat 20, so that the outer diameter of the push top 41 is larger than the middle section. The outer diameter of the outer surface of the impact block 40 is a stepped cylinder; the top end of the impact block 40 is provided with a first air passage 44, and the side wall of the middle portion 42 of the impact block 40 is provided with a plurality of second air passages 45. The second air passage 45 is in communication with the first air passage 44.

The working piece 50 (please refer to FIG. 2 at the same time) has a plunger 51 that can be inserted into the insertion hole 32 of the second airflow switching seat 30, and the second airflow switching seat 30 The steel ball 34 is placed against the plunger 51 of the workpiece 50 so that the workpiece 50 does not slip off the socket 32.

With the above configuration, as shown in FIG. 2, the working member 50 can be inserted into the insertion hole 32 of the second air flow switching seat 30, at which time the sleeve 36 is pushed by the spring 35 to cover the second air flow. The perforation 33 on the switch seat 30 allows the steel ball 34 to abut against the plunger 51 of the work piece 50, so that the work piece 50 can be combined with the second air flow switch seat 30; in the initial operation, the impact block 40 is subjected to gravity. And settled at the bottom end of the first air flow switching seat 20, the middle portion 42 of the impact block 40 and the striking portion 43 extend into the second chamber 31 of the second air flow switching seat 30, and the intermediate portion 42 is located at the second portion The spring 38 disposed in the two chambers 31 forms a space between the bottom end of the push top 41 of the impact block 40 and the annular groove 214 provided by the first air flow switching seat 20 to avoid impacting the block 40 during initial operation. Pushing the top 41 does not block the closed ring groove 214 and affects the input of the high pressure gas; and when the work of cutting, cutting or breaking the material is to be performed, the operating body 10 is connected with a high pressure gas source (not shown), as in the first As shown in FIG. 3, the on-off valve 12 provided on the control operating body 10 is opened, and the high-pressure gas is input into the air flow passage 12. The high pressure gas can be input into the gas supply pipe 13 through the passage 11 of the operating body 10, and then input into the groove 211 of the joint 21A of the first air flow switching seat 20 by the gas pipe 13, as shown in Fig. 4, the input high pressure gas Then, the slot 212 provided in the joint 21A is input into the air flow passage 215 and the annular groove 214 of the air flow sleeve 21B. At this time, since the second air passage 45 of the impact block 40 is blocked by the second air flow switching seat 30, the high pressure gas is only The shock block 40 can be moved upwards (as shown in FIG. 5) by accumulating under the annular groove 214 and the first chamber 213, and continuously pushing the high pressure gas to form the air pressure to push the bottom end of the push top 41 of the impact block 40. When the impact block 40 moves up, the middle portion 42 of the impact block 40 moves up to the first chamber 213 of the first air flow switching seat 20, and the second air passage 45 provided by the impact block 40 corresponds to the first air flow switch. When the seat 20 is provided with a ring groove 214, At this time, the input high-pressure gas enters the second air passage 45 of the impact block 40, and then flows from the first air passage 44 to the upper portion of the impingement block 40 and above the first chamber 213 (as shown in FIG. 6). The continuous input of the high pressure gas causes the air pressure above the first chamber 213 to rise to push the top surface of the push top 41 of the impact block 40, so that the impact block 40 is forced to move downward. When the impact block 40 moves down, the impact block The striker 43 of 40 is moved down into the second chamber 31 of the second airflow switching seat 30 to strike the work piece 50 (as shown in Fig. 7), so that the work piece 50 is forced to move downward.

After the impact block 40 is moved down, since the impact block 40 is located below the first air flow switch 20, the second air passage 45 of the impact block 40 is blocked by the second air flow switching seat 30, so that the high pressure gas is no longer input into the impact block 40. The second air passage 45 prevents the high pressure gas from being input into the first chamber 213. At this time, the push top 41 of the impact block 40 corresponds to the annular groove 214 of the first air flow switching seat 20, so that the air pressure formed by the high pressure gas can be Pushing the push top 41 of the impact block 40 again, the impact block 40 is moved upward again, and the gas accumulated above the first chamber 213 can be squeezed by the ascending block 40 to be pressed by the first air passage of the impact block 40. 44. The second air passage 45 is merged into the second chamber 31 of the second air flow switching seat 30, and then discharged by the exhaust hole 37 of the second air flow switching seat 30 (as shown in FIGS. 8 and 9). The operation of not accumulating too much high-pressure gas in one of the chambers 213 and the second chamber 31 affects the operation; therefore, the continuous intrusion of the high-pressure gas causes the impact block 40 to continuously move up and down, and continuously hits the workpiece 50, so that the workpiece 50 Reciprocating to cut, cut or break material .

After the operation of cutting, cutting or breaking the material is finished, the switch 11 provided on the operating body 10 is closed, and the input of the high pressure gas is stopped, so that the impact block 40 does not repeatedly hit the working member 50 to stop the operation.

When the working piece 50 is to be replaced, the sleeve on the second air flow switching seat 30 can be 36. The compression spring is slid rearwardly. When the groove 361 provided in the sleeve 36 corresponds to the through hole 33 provided on the second air flow switching seat 30, the steel ball 34 disposed in the through hole 33 moves to the groove 34. And no longer depends on the plunger 51 of the working piece 50 (as shown in FIG. 10), at this time, the working piece 50 can be detached from the insertion hole 32 of the second airflow switching seat 30, and another work is to be performed. After the plunger 51 of the piece 50A is inserted into the insertion hole 32, the sleeve 36 is released, and the sleeve 36 is moved forward by the top of the spring 35, so that the groove 361 of the sleeve 35 moves forward, so that the steel ball 34 is moved. It is possible to reset and closely abut against the plunger 51 of the workpiece 50A so that the workpiece 50A does not slip out (as shown in Fig. 11).

Therefore, as can be seen from the above, the present invention is provided in the first chamber 213 of the first air flow switching seat 20 and the second chamber 31 of the second air flow switching seat 30 by the impact block 40, and by the impact block. The first air passage 44 and the second air passage 45 are disposed such that when the impact block 40 moves, the flow direction of the high pressure gas can be changed at the same time, so that the impact block 40 can reciprocate and repeatedly impact the workpiece 50 to achieve cutting, The operation of cutting or breaking the material, so that the change of gas flow and direction is highly smooth and rapid, and thus can effectively provide the smoothness and convenience of the operation of the pneumatic tool.

Therefore, it can be seen from the above description and the embodiment of the drawings that the present invention can provide a gas driving method for pushing the workpiece to reciprocate, improving the working speed, saving time and labor, simple components, and reducing cost. Pneumatic tools; therefore, this creation does have significant progress, and its construction is indeed unprecedented. Cheng has already complied with the new patent requirements, and filed a patent application according to law, and prayed for a patent for prayer.

The above descriptions are merely illustrative of the possible embodiments of the present invention, and therefore are not intended to limit the scope of the present invention. Anyone who is familiar with the skill of the art in accordance with the present specification and the scope of the patent application is equally modified or modified. It should remain within the scope of protection covered by this creation.

10‧‧‧Operating the body

11‧‧‧Air passage

12‧‧‧ switch valve

13‧‧‧ gas pipeline

20‧‧‧First air flow switcher

21A‧‧‧ connector

21B‧‧‧Airflow sleeve

211‧‧‧ Groove

212‧‧‧ slots

213‧‧‧ first chamber

214‧‧‧ Ring groove

215‧‧‧Air passage

30‧‧‧Second air flow switcher

31‧‧‧Second chamber

32‧‧‧ jack

33‧‧‧Perforation

34‧‧‧ steel balls

35‧‧‧ Spring

36‧‧‧Sleeve

361‧‧‧ Groove

37‧‧‧ venting holes

38‧‧‧ Spring

40‧‧‧impact block

41‧‧‧ Push top

42‧‧‧ Middle section

43‧‧‧Beat Department

44‧‧‧First airway

45‧‧‧Second airway

50‧‧‧Workpieces

51‧‧‧Plunger

Claims (4)

A reciprocating pneumatic tool includes an operating body, a first airflow switching seat, a second airflow switching seat and an impacting block; wherein: the operating body is configured to provide high-pressure air injection, and the airflow passage is arranged in the operating body, and the operation An on-off valve is disposed on the body; the first airflow switching seat is pivotally coupled to the operating body, and includes a joint, the joint is provided with a groove, and the joint side edge ring is provided with a plurality of slots communicating with the groove The air flow sleeve is disposed on the lower side of the joint, the first chamber is disposed in the center of the air flow sleeve, and a ring groove is disposed on the lower side wall of the first chamber, and a plurality of air flow passages are disposed in the axial direction of the air flow sleeve wall. The top end of the air flow channel corresponds to the slot provided by the joint, and the bottom end of the air flow channel is connected with the ring groove; the second air flow switching seat is pivotally coupled with the first air flow switching seat, and the second air flow switching seat is provided with the second a chamber and a jack, the second chamber is in communication with the jack, and the second chamber and the jack are in communication with the first chamber of the first airflow switching seat; and the second airflow switching seat The bottom side of the ring is set The perforation is such that the perforation is in communication with the socket, and a steel ball is disposed in the perforation. The lower end of the second air flow switching seat is sleeved with a spring and a sleeve, so that the sleeve can be closed by the top of the spring and the cover is placed in the perforation. And the steel ball, so that the working piece can be provided; further, the sleeve is provided with a plurality of grooves corresponding to the number of perforations; and the second air flow switching seat side wall is provided with a plurality of exhaust holes, The venting hole is in communication with the second chamber; further, the second chamber of the airflow switching seat is provided with a spring; the impacting block is disposed in the first chamber of the first airflow switching seat and can be first Sliding in the chamber, the impact block is a stepped cylinder; a top air passage is disposed at a top end of the impact block, and a plurality of second air passages are disposed on the side wall of the impact block to connect the first air passage with the second air passage By this, the utility model provides a pneumatic tool for driving the workpiece to reciprocate by means of gas driving, thereby improving the working speed, saving time and labor, and reducing the cost. The reciprocating pneumatic tool of claim 1, wherein the operating body is coupled to an air pipe, and the air pipe is engageable with the first air flow switching seat. The reciprocating pneumatic tool according to claim 1, wherein the impact block sequentially forms a push top, a middle portion and a striking portion from top to bottom, and the outer diameter of the push top is set with the first air flow switching seat. The inner diameter of the first chamber is the same, and the outer diameter of the push top is larger than the outer diameter of the middle portion. The reciprocating pneumatic tool of claim 3, wherein the second air passage ring of the impact block is disposed on a side wall of the intermediate section.