TWI619585B - Signal generating device for pneumatic tools - Google Patents

Abstract

The invention relates to a signal generating device for a pneumatic tool, which is arranged in a pressing chamber of a pneumatic tool and communicates with a button, and includes a valve core sleeve, a valve core, a piston pin and a gas guiding body. The valve core sleeve is mounted in the pressing cavity of the pneumatic tool, and the valve core is rotatably mounted on the inner side of the valve sleeve, the piston pin is threaded through the valve core and connected to the valve core at one end a valve sleeve, the other end of which is connected to a button of the pneumatic tool, the air guiding component is rotatably coupled to the valve core; the invention is capable of pushing the piston pin through a button of the pneumatic tool to make the pneumatic tool Part of the intake air can be introduced into the valve core and into the air guide assembly, so that the air guide assembly generates a pressure signal and is metered or counted with a counter or a pressure gauge.

Description

Signal generating device for pneumatic tools

The present invention relates to a pneumatic tool, and more particularly to a signal generating device for a pneumatic tool.

As shown in FIG. 6, a conventional pneumatic tool 70 includes a body 71, a driving component 72, a pressing component 73, and a muffler 74. The body 71 includes a receiving cavity 711 adjacent to the a pressing chamber 712 that accommodates the cavity 711 and extends horizontally, and an intake passage 713 and an exhaust passage 714 that are respectively connected to the pressing chamber 712. The driving component 72 is correspondingly disposed in the receiving cavity 711. 73 is correspondingly disposed in the pressing cavity 712, and the muffler 74 is connected to the bottom of the body 71 and correspondingly communicates with the exhaust passage 714.

In the state of use, the pneumatic tool 70 is connected to an air compressor (not shown) by the body 71, and the compressed air is introduced from the intake passage 713, so that the compressed air can be controlled by the pressing assembly 73. The drive member 72 is driven to rotate to drive the pneumatic tool 70 to operate, and the remaining gas during the intake process will be exhausted by the drive member 72 through the exhaust passage 714 to complete the entire cycle of actuation.

The main driving medium of the existing pneumatic tool 70 is to drive the internal parts through the compressed air, so the design is subject to considerable restrictions. In addition, the compressed air is easy to cause airflow or air pressure instability during the transmission. The situation is also likely to affect the accuracy of the detection. Therefore, the existing pneumatic tool 70 has the function of detecting or detecting the signal transmission such as the number of presses or pressure, which is quite difficult.

In addition, the existing pneumatic tool 70 is also not easy to directly apply electronic components for signal monitoring or detection of the number of pressing, air pressure or air pressure. If electronic components are to be applied, additional matching is required. In view of the fact that the wire or the mounting of electronic components is likely to cause complicated design, difficulty in designing, or increase the volume of the pneumatic tool, the inventors believe that the existing pneumatic tools are still necessary for improvement.

In order to solve the difficulty of the existing pneumatic tool in increasing the function of detecting or detecting signals, the main object of the present invention is to provide a signal generating device for a pneumatic tool, which is further combined with a gas guiding component in a pressing cavity of a pneumatic tool. The compressed air intake air through the pneumatic tool is shunted to the air guide assembly to generate a pressure signal, which can be connected to a counter, a pressure gauge or other signal transmission application, so that the pneumatic tool can be installed without electronic components. Signal detection function.

The technical means used in the present invention is to provide a signal generating device for a pneumatic tool, which is disposed in a pressing cavity of a pneumatic tool and connected to a button, comprising: a valve core sleeve, which is disposed on a valve passage formed in the pressing chamber of the pneumatic tool and an opening formed at one end of the valve passage, the opening being oriented toward a button of the pneumatic tool, and the valve sleeve having a valve opposite to the opening a valve core, which is rotatably mounted on the valve passage of the valve sleeve, and has a horizontally extending plug shaft hole and a movable ring groove surrounding the outer periphery of the valve core; a piston pin The utility model is movably disposed through the plug shaft hole of the valve core, and is connected to the button of the pneumatic tool at one end, and passes through the valve core sleeve at the other end and is coupled with a cover corresponding to the bottom side of the valve. And a gas guiding component that is rotatably coupled to the valve core, and includes a signal member and a gas guiding member, the signal member is coupled to the valve core and located in the movable ring groove of the valve core, Forming a valve core sleeve inside the signal member A passage within the passage, the air guide member bonded to an end of the signal and the communication signal is within the channel of the member.

The signal generating device for a pneumatic tool, wherein the valve core has a venting portion, an air inlet portion, and a connecting portion connected between the exhaust portion and the air inlet portion, the plug shaft hole The valve The core of the core extends and horizontally penetrates the exhaust portion, the air inlet portion and the connecting portion, and the movable ring groove is located between the exhaust portion and the air inlet portion and surrounds the connecting portion, and the signal member is coupled to the The inlet of the spool.

The signal generating device for a pneumatic tool, wherein the air inlet portion defines a mounting groove and a gas guiding passage connecting the mounting groove and the valve passage, and the signal member is coupled to the mounting groove at one end, and The air passage is in communication with the valve passage.

The signal generating device for a pneumatic tool, wherein the signal member has a mounting end disposed in a horizontal direction and a conduit end extending obliquely in a vertical direction, the signal member being coupled to the valve core by the mounting end Install in the slot.

The signal generating device for a pneumatic tool, wherein a positioning groove is formed under the exhaust portion, the air guiding assembly further includes a positioning member coupled to the positioning groove, the signal member having a horizontal direction The positioning member is coupled to the positioning end of the signal member.

The present invention utilizes the provided signal generating device for a pneumatic tool, and the power enhancements that can be obtained include:

1. The invention is matched with a button of a pneumatic tool, and simultaneously presses a small amount of compressed air entering the pneumatic tool into a gas guiding component installed in the valve core, so that the compressed air generates a pressure signal in the air guiding component, and further With counters, pressure gauges or other cooperating accessories that can be operated by the use of pressure signals, the pneumatic tools can be counted, metered or torqued, pressure adjusted and more.

2. The invention only needs to utilize the existing pneumatic tool parts to produce the signal transmission effect without adding any electronic components or electronic wiring, and does not increase the volume or weight of the pneumatic tool.

10‧‧‧ pneumatic tools

11‧‧‧ Pressing cavity

12‧‧‧ button

13‧‧‧Intake passage

14‧‧‧Exhaust passage

20‧‧‧ spool sleeve

21‧‧‧Valve channel

22‧‧‧ openings

23‧‧‧air inlet

24‧‧‧Exhaust port

25‧‧‧Limited slot

26‧‧‧ bottom side of the valve

261‧‧ ‧ pinhole

30‧‧‧Spool

31‧‧‧Exhaust Department

311‧‧‧ Missing slot

312‧‧‧ positioning slot

32‧‧‧Intake Department

321‧‧‧Installation slot

322‧‧‧air conduction channel

323‧‧‧Intake chamber

324‧‧‧Air intake

325‧‧‧ guiding slot

33‧‧‧Connecting Department

34‧‧‧plug shaft hole

35‧‧‧Active ring groove

40‧‧‧Piston pin

41‧‧‧ Cover

50‧‧‧Gas Guide

51‧‧‧ Positioning parts

52‧‧‧Signal

521‧‧‧ Positioning end

522‧‧‧Installation end

523‧‧‧ catheter end

524‧‧‧Positioning holes

525‧‧‧Internal passage

53‧‧‧Air guides

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a front partial cross-sectional view of a preferred embodiment of the present invention.

Figure 2 is an exploded view of a preferred embodiment of the present invention.

Figure 3 is a partial cross-sectional enlarged view of the preferred embodiment of the present invention in a front view.

Figure 4 is a front partial cross-sectional view of the preferred embodiment of the present invention in use.

Figure 5 is a front, partially enlarged, cross-sectional view of the preferred embodiment of the present invention in use.

Figure 6 is a front partial cross-sectional view of a prior pneumatic tool.

In order to be able to understand the technical features and practical effects of the present invention in detail, and in accordance with the contents of the specification, further illustrated in the preferred embodiments as illustrated in the following: the present invention is a pneumatic tool For the signal generating device, please refer to the preferred embodiment of FIG. 1 to FIG. 4, the signal detecting device is disposed in a pressing cavity 11 of a pneumatic tool 10, and is connected to a button 12, and includes a valve core sleeve 20. A spool 30, a piston pin 40 and a gas guide assembly 50.

As shown in FIG. 1 , the pneumatic tool 10 is of a pneumatic tool type which is generally visible in the market. The pressing chamber 11 is inclined in the horizontal direction in the pneumatic tool 10 and has an intake passage respectively connected to the pressing chamber 11 . 13 and an exhaust passage 14.

As shown in FIG. 1 and FIG. 2, the valve core sleeve 20 is installed in the pressing chamber 11 of the pneumatic tool 10 in a horizontal direction. The valve core sleeve 20 is cylindrical and forms a valve passage 21 therein. An opening 22 formed at one end of the valve passage 21, the opening 22 is oriented toward the button 12 of the pneumatic tool 10, and the outer circumference of the valve core sleeve 20 is disposed at two sides away from the opening 22 and is connected to the valve passage The air inlet 23 of the 21 and the outer periphery of the valve sleeve 20 are provided with two exhaust ports 24 which are upper and lower opposite and communicate with the valve passage 21, and are located at the outer periphery of the valve sleeve 20 at the opening 22 A limiting slot 25 is defined between the upper exhaust port 24 and the valve core sleeve 20 defines a valve bottom side 26 opposite to the opening 22, and a valve bottom side 26 opens to the valve passage 21 Pin hole 261.

As shown in FIG. 1 to FIG. 3, the spool 30 is rotatably and horizontally mounted in the valve passage 21 of the valve sleeve 20, and the spool 30 has a cylindrical shape and has an exhaust portion 31. An air intake part 32 and a connection Connected to the connecting portion 33 between the exhaust portion 31 and the intake portion 32, the spool 30 has a plug shaft hole 34 extending along the axis of the spool 30 and horizontally penetrating the exhaust portion 31. The intake portion 32 and the connecting portion 33 define a movable ring groove 35 between the exhaust portion 31 and the intake portion 32 and surround the connecting portion 33. The position of the movable ring groove 35 corresponds to the valve sleeve The position of the two of the exhaust ports 24 of 20.

As shown in FIG. 2 and FIG. 3, it is preferable that the exhaust portion 31 is formed with a notch 311 corresponding to the upper limiting groove 25, and a cylindrical positioning groove is formed below the exhaust portion 31. 312. The air inlet portion 32 defines a coaxially disposed mounting groove 321 corresponding to the positioning groove 312, and a gas guiding passage 322 that communicates with the mounting groove 321 and the valve passage 21, and a portion is formed inside the air inlet portion 32. An intake cavity 323 communicating with the plug shaft hole 34 and an air inlet 324 extending above the air inlet portion 32 and communicating with the air inlet chamber 323, the air inlet hole 324 being correspondingly connected to the valve core sleeve 20 Any of the air inlets 23 is configured to achieve the effect of guiding the compressed air. The air inlet portion 32 is recessed on a side surface facing the pin hole 261 to form a guiding groove 325. The valve core 30 is connected to the air inlet portion 32. Proximate to the valve bottom side 26 of the valve sleeve 20, the guide groove 325 can be used to guide compressed air entering the pin hole 261 into the air guiding passage 322 and the air inlet chamber 323.

As shown in FIG. 1 and FIG. 2 , the piston pin 40 passes through the plug shaft hole 34 of the valve core 30 and protrudes from the pin hole 261 of the valve core sleeve 20 at one end, and the other end is connected to the pneumatic tool 10 . The button 12 has a cover 41 at an end extending from the pin hole 261. When the piston pin 40 is moved in the horizontal direction, the cover 41 can seal the pin hole 261 correspondingly. Compressed air cannot enter the valve sleeve 20 and the spool 30.

As shown in FIG. 2 and FIG. 3, the air guide assembly 50 is rotatably coupled to the valve core 30, and includes a positioning member 51, a signal member 52 and a gas guiding member 53. The locating member 51 is preferably a bolt, and the signal member 52 is correspondingly mounted to the mounting groove 321 of the air inlet portion 32 and is positioned therewith. The member 51 is disposed coaxially. The signal member 52 is a T-shaped cylindrical member having a positioning end 521 and a mounting end 522 disposed in a horizontal direction, and between the positioning end 521 and the mounting end 522. a guide that extends obliquely in the vertical direction The positioning end 521 defines a positioning hole 524 coaxial with the positioning member 51. The mounting end 522 and the inside of the catheter end 523 define an inner passage that is L-shaped and does not communicate with the positioning hole 521. 525, the inner channel 525 is connected to the air guiding channel 322 at one end of the mounting end 522. The signal member 52 is correspondingly assembled to the mounting groove 321 by the mounting end 522, and the positioning slot is pierced by the positioning member 51. The 312 is screwed and fixed to the positioning hole 524, so that the signal member 52 is located in the movable ring groove 35. The position of the air guiding component 50 can be used to drive the signal member 52 by adjusting the position of the positioning member 51. Displacement in the mounting groove 321, the air guiding member 53 is an elongated tubular body and is disposed at one end corresponding to the inner passage 525 of the conduit end 523, and the other end extends into the exhaust passage 14 of the pneumatic tool 10. Inside.

As shown in FIG. 3 to FIG. 5, the pneumatic tool 10 is connected to compressed air when in use, and when the button 12 of the pneumatic tool 10 is pressed, the piston pin 40 will be driven along. The valve sleeve 20 and the valve core 30 actuate to separate the cover 41 from the valve core sleeve 20. At this time, compressed air enters the pressing chamber 11 from the intake passage 13 and has a partial compressed air split. After entering the air guiding channel 322 along the guiding slot 325, the air guiding member 53 continues to enter the air guiding member 53 through the inner passage 525 of the signal member 52. At this time, the divided compressed air enters the air guiding member 53 to generate a gas. The pressure signal allows the pneumatic tool 10 to pass the pressure signal with a counter, a pressure gauge or other cooperative fitting that can be operated by using the pressure signal, so that the pneumatic tool 10 can perform counting, metering or torque, pressure adjustment and the like. For example, when the button 12 of the pneumatic tool 10 is pressed once, the compressed air generates a pressure signal through the air guide assembly 50 and is calculated once by a counter, so that the user can pass through the original compression space. To calculate the number of presses without adding any electronic components or electronic wiring, and without increasing the volume or weight of the pneumatic tools, it is only necessary to use the existing pneumatic tool parts to generate signal transmission effects, which is equivalent in use. Comprehensive, it also breaks through the existing thinking to create a unique use effect.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any one of ordinary skill in the art, without departing from the invention. Equivalent embodiments that utilize local variations or modifications made by the teachings of the present invention are still within the scope of the technical features of the present invention.

Claims (5)

A signal generating device for a pneumatic tool is disposed in a pressing cavity of a pneumatic tool and connected to a button, comprising: a valve core sleeve disposed in a pressing cavity of the pneumatic tool, and Forming a valve passage and an opening formed at one end of the valve passage, the opening is toward a direction of a button of the pneumatic tool, and the valve core sleeve has a valve bottom side opposite to the opening; a valve core Rotatingly mounted on the valve passage of the valve sleeve, and having a horizontally extending plug shaft hole and a movable ring groove surrounding the outer circumference of the valve core; a piston pin movably passing through the valve core Plugging the shaft hole and connecting the button of the pneumatic tool at one end, passing the valve core sleeve at the other end and combining a cover corresponding to the bottom side of the valve; and a gas guiding component The valve core is rotatably coupled to the valve core, and includes a signal member and a gas guide member. The signal member is coupled to the valve core and located in the movable ring groove of the valve core, and the valve member is configured to communicate with the valve. An inner passage of the valve passage of the core sleeve, the air guide member is coupled to One end of the signal, and the signal member of the communication channel. The signal generating device for a pneumatic tool according to claim 1, wherein the valve body has a venting portion, an air inlet portion, and a connecting portion connected between the exhaust portion and the air inlet portion, a plug shaft hole extends along the axis of the spool and horizontally penetrates the exhaust portion, the air inlet portion and the connecting portion, and the movable ring groove is located between the exhaust portion and the air inlet portion and surrounds the connecting portion. The signal member is coupled to the inlet of the spool. The signal generating device for a pneumatic tool according to claim 2, wherein the air inlet portion defines a mounting groove and a gas guiding passage connecting the mounting groove and the valve passage, and the signal member is coupled to the mounting at one end. And communicating with the valve passage through the air guiding passage. The signal generating device for a pneumatic tool according to claim 3, wherein the signal member has a mounting end disposed in a horizontal direction and a conduit end extending obliquely in a vertical direction, the signal member being coupled to the mounting end The spool is installed in the groove. The signal generating device for a pneumatic tool according to any one of claims 2 to 4, wherein a positioning groove is formed under the exhaust portion, and the air guiding assembly further includes a positioning member coupled to the positioning groove. The signal member has a positioning end disposed in a horizontal direction, and the positioning member is coupled to the positioning end of the signal member.