TWM603821U - Pneumatic tool structure with vibration isolation and depressurization - Google Patents

Abstract

This creation of a pneumatic tool structure with shock isolation and pressure relief includes: an intake head, a sliding sleeve, an actuation unit, a piston, a working piece, an elastic piece, a first vibration isolation ring and a The second shock isolation ring, the sliding sleeve is assembled with the intake head, the inner edge is provided with a limit sliding groove, the actuation unit is provided with a main pipe, and a section of the back end of the main pipe is slidably arranged on the sliding sleeve Inside the barrel, a positioning groove is provided on the outer edge, and a steel ball is sandwiched between the positioning groove and the limiting sliding groove of the sliding sleeve, which limits the main tube to only linearly slide back and forth with respect to the sliding sleeve and cannot rotate. The main body tube is provided with a chamber, the piston member is slidably accommodated in the chamber, the working member is assembled on the front side of the main body tube, and the elastic member is disposed inside the sliding sleeve and located between the intake head and the Between the actuation units, the first vibration isolation ring and the second vibration isolation ring are arranged between the actuation unit and the sliding sleeve; thereby, the shock absorption effect is improved, and the normal leakage can be maintained during use Pressure.

Description

Pneumatic tool structure with shock isolation and pressure relief

This creation is about a pneumatic tool, especially a pneumatic tool structure with shock isolation and pressure relief.

According to, pneumatic tools can be divided into reciprocating and rotating modes. The reciprocating pneumatic tool uses high-pressure gas to push a piston to reciprocate and strike a work piece, so that the work piece is driven by the repeated impact of the piston. The reciprocating motion can then be used for derusting, cutting, punching, gouging... etc.

As shown in the twelfth and thirteenth figures, it is a conventional pneumatic tool. The pneumatic tool 90 includes a tool body 91, a transmission part 92, a coupling unit 93 and a working part 94, wherein the tool body 91 has an intake head 911, the intake head 911 is provided with a switch 912, the intake head 911 is connected to a main body pipe 913, and the main body pipe 913 is away from the center of one end of the intake head 911 with a set of connecting holes 9131 , A set of connecting ring grooves 9132 are provided on the outside, a set of connecting grooves 9133 are provided on the set of connecting ring grooves 9132 to communicate with the set of connecting holes 9131, and the main body tube 913 is provided with a cavity 9134 in communication with the set of connecting holes 9131, The chamber 9134 is provided with an air valve 914 near the intake head 911. The chamber 9134 houses a movably sliding piston member 915 between the air valve 914 and the set of connecting holes 9131. The transmission member 92 has An inserting rod 921 and a disc-shaped pushing portion 922. The assembling unit 93 has two limiting blocks 931 and a ring 932. The inserting rod 921 of the transmission member 92 is inserted into the main tube 913 of the tool body 91 The assembling hole 9131 is assembled in the assembling notch 9133 of the main pipe 913 with the two limiting blocks 931 of the assembling unit 93 , To cooperate with the fastening ring 932 of the assembling unit 93 to be fastened to the assembling ring groove 9132 of the main tube 913, so that the transmission member 92 is fixed to the end of the main tube 913 of the tool body 91 away from the intake head 911. The working piece 94 has a tool sleeve 941 which is sleeved and fixed on the outside of the main tube 913. The tool sleeve 941 is provided with an elastic element 942 and a needle seat 943. The needle seat 943 is inserted A plurality of needle-shaped bodies 944 with derusting functions protrude out of the tool sleeve 941, and the needle seat 943 abuts against the pushing portion 922 of the transmission member 92.

When in use, the operator holds the intake head 911 and the main tube 913 in one hand, and the tool sleeve 941 in the other hand, turns on the switch 912, so that the high-pressure air is controlled by the intake head 911 through the air valve 914 to push the piston 915 toward The transmission member 92 slides and strikes the transmission member 92, and then the high-pressure air is controlled and transformed by the air valve 914 to push the piston member 915 to slide toward the air valve 914 to hit the air valve 914. In this way, the piston member 915 is pushed back and forth to hit the transmission member 92 and the air valve. The valve 914 uses the pusher portion 922 of the transmission member 92 to push the needle seat 943 of the working member 94 to drive the needle 944 to perform the rust removal operation.

However, with the above two conventional hand-held power tools, each time the piston 915 hits the air valve 914 during use, the vibration of the reaction force is directly transmitted to the operator's hand holding the intake head 911 and the main tube 913. Above, this will not only make the operator feel uncomfortable, reduce work efficiency, but also need to work harder to hold the intake head 911 and the main tube 913, which will easily cause fatigue caused by sore hands, even in severe cases. It will cause injury to the operator's hand joints.

In view of the above-mentioned shortcomings of the conventional pneumatic tools, the creator of this creation is based on the idea of thinking and creation, after many discussions, trial sample tests, and many revisions and improvements, and then launched this creation.

This creation provides a pneumatic tool structure with shock isolation and pressure relief, including: Air head, the air inlet head is provided with a pressure handle switch, an air inlet channel is arranged inside, and a connecting part is arranged at one end of the air inlet head. The end surface of the connecting part is provided with a coupling hole communicating with the air inlet channel. One end of an air duct is inserted and fixed; a sliding sleeve, one end is assembled with the connecting part of the intake head, and the inner edge of the other end is provided with a convex stop part; an actuation unit is provided with a main body tube, the main body tube has A front end and a rear end. A section of the back end of the main body tube is slidably assembled in the sliding sleeve. The outer edge of the main body tube is provided with a ring recess. The end of the ring recess near the intake head is provided with a limit stop The limit stop edge is blocked by the convex stop part of the sliding sleeve to limit the extreme position of the main body tube sliding forward. An exhaust passage is provided between the sliding sleeve and the main body tube. At least one pressure relief groove is provided on the limit stop edge, a locking bolt is fixed inside the rear end of the main body tube, and a vent hole is provided in the center of the locking bolt along the axial direction. The locking bolt passes through the vent hole and the The air ducts are connected by sliding sleeves, the central part of the front end of the main body tube is provided with a set of holes, the main body tube is provided with a cavity in communication with the set of holes, and an air valve is arranged between the cavity and the locking bolt; The piston is slidably accommodated in the chamber; a working part is assembled on the front side of the main body tube; an elastic part is elastic and is arranged inside the sliding sleeve and located between the intake head and the locking bolt In between, a through hole is provided in the center of the elastic member for the air duct to pass through; a first shock isolation ring, which is an annular body, is sleeved on the outer edge of the locking bolt and is located in the lock Between the tightening bolt and the sliding sleeve, the first vibration isolation ring has a first side and a second side opposite to the first side, and the outer edge of the first vibration isolation ring is provided with a plurality of first rows at equal intervals Air grooves, each of the adjacent first exhaust grooves respectively forms a first shock isolation contact portion, and the first side and the second side are connected by the plurality of first exhaust grooves; and a second shock isolation ring , Is an annular body, sleeved on the outer edge of the main body tube, and located between the main body tube and the sliding sleeve, the second vibration isolation ring has a third side and a first side opposite to the third side On four sides, the outer edge of the second vibration isolation ring is provided with a plurality of second exhaust grooves at equal intervals, and each adjacent second exhaust groove forms a first The two shock isolation contact parts communicate with the third side and the fourth side through the plurality of second exhaust grooves.

The main purpose of creating a pneumatic tool structure with shock isolation and pressure relief is that when the piston slides backward to hit the air valve, the air guide tube can be used to provide the main tube displacement guide, and the elastic part is compressed to provide elastic buffering. And the first vibration isolation ring and the second vibration isolation ring are used to achieve vibration isolation, thereby achieving a more effective shock absorption effect.

The second purpose of the structure of the pneumatic tool with vibration isolation and pressure relief is that an exhaust channel is provided between the sliding sleeve and the main pipe, and the outer edges of the first vibration isolation ring and the second vibration isolation ring are respectively arranged at equal intervals In the plural first exhaust grooves and the plural second exhaust grooves, at least one pressure relief groove is provided on the limit stop edge of the main pipe, which can maintain normal pressure relief during use.

10: intake head

11: Press handle switch

12: intake channel

13: Connection part

131: Combination hole

14: Airway

20: Sliding sleeve

21: convex block

211: Limit Chute

30: Actuating unit

31: Main tube

31A: Front end

31B: backend

311: ring recess

3111: positioning slot

3112: limit stop edge

3113: Pressure Relief Slot

312: Assembly hole

313: assembly ring groove

314: missing slot

32: steel ball

33: lock bolt

331: Vent

332: guide bush

333: limit cushion

34: Transmission parts

341: Drive Rod

342: Arrival

35: limit block

36: Clamping ring

37: Cylinder parts

371: Chamber

38: Air valve

40: Piston

50: work piece

51: Tool sleeve

52: Spring

53: Needle seat

54: Needle

60: Elastic

61: Through hole

70: The first isolation ring

70A: First side

70B: second side

71: First exhaust slot

72: first isolation contact

80: Second isolation ring

80A: third side

80B: Fourth side

81: second exhaust slot

82: second isolation contact

A1: Exhaust channel

The first picture is a three-dimensional picture of this creation.

The second picture is a three-dimensional exploded view of this creation.

The third A is a partial cross-sectional view of this creation.

The third picture B is another partial sectional view of this creation.

The third picture C is an enlarged view of the 3C part of the third picture A.

The third D diagram is an enlarged view of the 3D part of the third A diagram.

The fourth figure is a three-dimensional sectional view of the sliding sleeve of this creation.

The fifth figure is a three-dimensional cross-sectional view of the main body of the creation.

The sixth picture is a side plan view of the main body of this creation.

Figure 7A is a side plan view of the first seismic isolation ring of this creation.

Figure 7B is a cross-sectional view of the first seismic isolation ring in this creation.

Figure 8A is a side plan view of the second seismic isolation ring of this creation.

Figure 8B is a cross-sectional view of the second isolation ring of this creation.

The ninth picture is a schematic diagram of this creation using air pressure to push the piston forward.

Figure 9A is an enlarged view of part 9A of Figure ninth.

Figure 9B is an enlarged view of part 9B of Figure ninth.

The tenth picture is a schematic diagram of this creation using air pressure to move the piston backwards.

The eleventh picture is a schematic diagram of the shock absorption of this creation.

Figure 12 is a three-dimensional view of a conventional pneumatic tool.

Figure 13 is a cross-sectional view of a conventional pneumatic tool.

The following is a further description with the drawings of the preferred embodiment of this creation, in order to enable those who are familiar with the related technology of this creation to implement it according to the statements in this manual.

First of all, please refer to the first, second, third A, third B, third C and third D diagrams. This creation is a pneumatic tool structure with shock isolation and pressure relief, including : An intake head 10, a sliding sleeve 20, an actuating unit 30, a piston member 40, a working member 50, an elastic member 60, a first vibration isolation ring 70 and a second vibration isolation ring 80.

The intake head 10 is provided with a pressure lever switch 11, an intake passage 12 is arranged inside, and an end of the intake head 10 is provided with a connecting portion 13, and the end surface of the connecting portion 13 is provided with a coupling hole 131 and the intake passage 12 is connected, and the coupling hole 131 is used for inserting and fixing one end of the air duct 14.

Please refer to Figure 4 for cooperation. One end of the sliding sleeve 20 is assembled with the connecting portion 13 of the intake head 10 in a screwed manner, and the inner edge of the other end is provided with a raised stop 21 which is axially arranged There is a long limit chute 211.

Please refer to the fifth and sixth figures together, the actuating unit 30 is provided with a main tube 31 The main body tube 31 has a front end 31A and a rear end 31B. A section of the back end 31B of the main body tube 31 is slidably arranged in the sliding sleeve 20. The outer edge of the main body tube 31 is provided with a ring recess 311, the ring The concave portion 311 is provided with a positioning groove 3111, and a freely rolling steel ball 32 is arranged on the positioning groove 3111. The steel ball 32 is sandwiched between the positioning groove 3111 and the limiting sliding groove 211 of the sliding sleeve 20, so that the steel ball 32 slides against the limit chute 211 of the sliding sleeve 20, restricting the main body tube 31 to only linearly slide back and forth relative to the sliding sleeve 20 without being able to rotate. The ring recess 311 is close to one end of the intake head A limit stop edge 3112 is provided, and the limit stop edge 3112 is blocked by the convex stop 21 of the sliding sleeve 20 to limit the limit position of the main body tube 31 sliding forward, the sliding sleeve 20 and An exhaust passage A1 is provided between the main pipe 31, at least one pressure relief groove 3113 is provided on the limit stop edge 3112, a locking bolt 33 is fixed inside the rear end 31B of the main pipe 31, and the center of the locking bolt 33 A vent hole 331 is provided along the axial direction. The vent hole 331 is equipped with a guiding bush 332 and a limiting soft pad 333. The locking bolt 33 penetrates the guiding bush 332 installed in the vent hole 331 Connected to the air duct 14 with a sliding sleeve, the limit cushion 333 is used for the air duct 14 to hit, a set of holes 312 are provided in the center of the front end 31A of the main body tube 31, and a transmission is provided at the front end 31A of the main body tube 31 34. The transmission member 34 is provided with a transmission rod 341 and a disc-shaped pushing portion 342 connected with the transmission rod 341. The transmission rod 341 of the transmission member 34 penetrates through the assembly of the front end 31A of the main tube 31 Hole 312, the main body tube 31 is provided with a set of ring grooves 313 near the front end 31A, the set of ring grooves 313 is provided with a notch 314 communicating with the set of holes 312, and the notch 314 is set with two limiting blocks 35, The connecting ring groove 313 is assembled with a clamping ring 36 for fixing the two limiting blocks 35, the transmission member 34 is limited by the two limiting blocks 35, and a cylinder member 37 is assembled inside the main tube 31, The cylinder member 37 is provided with a cavity 371 communicating with the assembly hole 312, and an air valve 38 is assembled between the cavity 371 and the locking bolt 33.

The piston 40 is slidably received in the cavity 371 of the actuating unit 30.

The working piece 50 is assembled on the front side of the main body tube 31, the working piece 50 is provided with a tool sleeve 51, the tool sleeve 51 is sleeved on the outer side of the main body tube 31, and a spring 52 is installed inside the tool sleeve 51 And a needle seat 53 on which a plurality of needle bodies 54 with rust removal function are inserted to protrude outside the tool sleeve 51, and the needle seat 53 abuts against the pushing part 342 of the transmission member 34.

The elastic member 60 is elastic and is arranged inside the sliding sleeve 20 and located between the air intake head 10 and the locking bolt 33. The center of the elastic member 60 is provided with a through hole 61 for the air duct. 14 through, in this embodiment, the elastic member 60 is a hemispherical elastic body, or a spring or the like.

Please refer to FIGS. 7A and 7B in conjunction. The first vibration isolation ring 70 is an annular body, sleeved on the outer edge of the locking bolt 33, and located between the locking bolt 33 and the sliding sleeve 20 In between, the first vibration isolation ring 70 has a first side 70A and a second side 70B opposite to the first side 70A. The outer edge of the first vibration isolation ring 70 is provided with a plurality of first exhaust grooves at equal intervals 71. A first shock-isolating contact portion 72 is formed between each adjacent first exhaust groove 71, and the first side 70A and the second side 70B are connected through the plurality of first exhaust grooves 71.

Please refer to Fig. 8A and Fig. 8B in conjunction. The second vibration isolation ring 80 is an annular body, sleeved on the outer edge of the main pipe 31 and located between the main pipe 31 and the sliding sleeve 20 The second vibration isolation ring 80 has a third side 80A and a fourth side 80B opposite to the third side 80A. The outer edge of the second vibration isolation ring 80 is provided with a plurality of second exhaust grooves 81 at equal intervals. A second shock isolation contact portion 82 is formed between each adjacent second exhaust groove 81, and the third side 80A and the fourth side 80B are connected through the plurality of second exhaust grooves 81.

When in use, as shown in the ninth, ninth A and ninth B, the operator holds the intake head 10 and the sliding sleeve 20 in one hand, and holds the tool sleeve 51 in the other hand to open the intake head 10 The pressure handle switch 11 makes the high-pressure air reach the air valve 38 from the air intake passage 12 of the air intake head 10 through the air duct 14 and The air valve 38 is controlled to enter the chamber 371, and pushes the piston 40 to slide in the direction of the front end 31A of the main tube 31 and hits the transmission rod 341 of the transmission 34, driving the entire actuating unit 30 to slide in the direction of the working member 50, while part of the high-pressure air passes through The first exhaust groove 71 of the first vibration isolation ring 70, the exhaust channel A1, the second exhaust groove 81 of the second vibration isolation ring 80, and the pressure relief groove 3113 are discharged to the outside, achieving the effect of pressure relief and vacuum breaking.

Then, as shown in the tenth and eleventh figures, the high-pressure air is controlled and transformed by the air valve 38 to push the piston member 40 to slide toward the rear end 31B of the main tube 31 and hit the air valve 38, driving the entire actuation unit 30 to the intake head 10. Direction sliding displacement, while part of the high-pressure air passes through the first exhaust groove 71 of the first vibration isolation ring 70 (from the first side 70A to the second side 70B), the exhaust passage A1, and the second vibration isolation ring 80 The exhaust groove 81 (from the third side 80A to the fourth side 80B) and the pressure relief groove 3113 are discharged outward to achieve the effect of pressure relief and vacuum breaking, and the elastic member 60 is squeezed by the locking bolt 33 to compress the elastic member 60 At the same time, the guide bushing 332 slides along the air guide tube 14, the limit soft cushion 333 collides with the air guide tube 14, and the compressed elastic member 60 is used to provide elastic cushioning to achieve a shock absorption effect, and the first shock isolation ring 70 The first vibration isolation contact portion 72 and the second vibration isolation contact portion 82 of the second vibration isolation ring 80 are in contact with the inner wall of the sliding sleeve 20 to achieve a vibration isolation effect and effectively reduce the transmission of the reaction force to the user's hand. In this way, reciprocating The piston member 40 is pushed back and forth to hit the transmission member 34 and the air valve 38, and the pusher portion 342 of the transmission member 34 is used to push the needle seat 53 of the working member 50 to drive the needle 54 to perform the rust removal operation.

From the structure of the above specific embodiment, the following benefits can be obtained:

1. The structure of the pneumatic tool with shock isolation and pressure relief. When the piston 40 slides backward and hits the air valve 38, the air guide tube 14 can be used to provide the displacement guide of the main tube 31, and the elastic member 60 is compressed to provide elastic force. Buffering effect, and the use of the first vibration isolation ring 70 and the second vibration isolation ring 80 to achieve a vibration isolation effect, so as to achieve a more effective shock absorption effect and reduce the transmission of the vibration of the reaction force to the operation The operator’s hand can save labor and protect the operator’s wrist, reducing soreness and injury.

2. The structure of the pneumatic tool with shock isolation and pressure relief. The sliding sleeve 20 and the main pipe 31 are provided with an exhaust channel A1. The outer edges of the first shock isolation ring 70 and the second shock isolation ring 80 are equally spaced. A plurality of first exhaust grooves 71 and a plurality of second exhaust grooves 81 are provided. At least one pressure relief groove 3113 is provided on the limit stop 3112 of the main pipe 31, which can maintain normal pressure relief during use, thereby ensuring The operation of pneumatic tools is normal.

10: intake head

11: Press handle switch

13: Connection part

131: Combination hole

14: Airway

20: Sliding sleeve

21: convex block

30: Actuating unit

31: Main tube

31A: Front end

31B: backend

311: ring recess

3111: positioning slot

312: Assembly hole

313: assembly ring groove

314: missing slot

32: steel ball

33: lock bolt

331: Vent

332: guide bush

333: limit cushion

34: Transmission parts

341: Drive Rod

342: Arrival

35: limit block

36: Clamping ring

37: Cylinder parts

38: Air valve

40: Piston

50: work piece

51: Tool sleeve

52: Spring

53: Needle seat

54: Needle

60: Elastic

61: Through hole

70: The first isolation ring

80: Second isolation ring

Claims (7)

A pneumatic tool structure with shock isolation and pressure relief, comprising: an air inlet head, a pressure handle switch is arranged on the air inlet head, an air inlet passage is arranged inside the air inlet head, and a connecting part is arranged at one end of the air inlet head, and the connecting part The end surface is provided with a connecting hole communicating with the air inlet passage, and the connecting hole is used for inserting and fixing one end of an air duct; a sliding sleeve, one end of which is assembled with the connecting part of the air inlet head, and the other end is provided with a convex Block; an actuating unit, provided with a main body tube, the main body tube has a front end and a rear end, the back end of the main body tube is slidably assembled in the sliding sleeve, the outer edge of the main body tube is provided with a ring recess An end of the ring recess near the intake head is provided with a limit stop edge, and the limit stop edge is blocked by the convex stop part of the sliding sleeve to limit the limit position of the main body tube sliding forward, An exhaust passage is provided between the sliding sleeve and the main body tube, at least one pressure relief groove is provided on the limit stop edge, a locking bolt is fixed inside the rear end of the main body tube, and the central part of the locking bolt is along the axis A vent hole is provided in the direction, the locking bolt is connected with the air duct through the vent hole and the air guide tube is slidingly sleeved. An air valve is provided between the chamber and the locking bolt; a piston member is slidably accommodated in the chamber; a working member is assembled on the front side of the main body tube; an elastic member is elastic and is arranged in Inside the sliding sleeve and between the air intake head and the locking bolt, a through hole is provided in the center of the elastic member for the air duct to pass through; a first shock isolation ring is a ring Body, sleeved on the outer edge of the locking bolt, and located at Between the locking bolt and the sliding sleeve, the first vibration isolation ring has a first side and a second side opposite to the first side. The outer edge of the first vibration isolation ring is provided with a plurality of An exhaust groove, each of the adjacent first exhaust grooves respectively forms a first shock isolation contact portion, through the plurality of first exhaust grooves to communicate the first side and the second side; and a second partition The vibration ring is an annular body, sleeved on the outer edge of the main body tube and located between the main body tube and the sliding sleeve. The second vibration isolation ring has a third side and a side opposite to the third side. On the fourth side, the outer edge of the second vibration isolation ring is provided with a plurality of second exhaust grooves at equal intervals, and a second vibration isolation contact portion is formed between each adjacent second exhaust groove. The exhaust groove communicates with the third side and the fourth side. The pneumatic tool structure with shock isolation and pressure relief according to claim 1, wherein the convex block of the sliding sleeve is provided with a limiting chute along the axial direction, and the ring recess of the main body tube is provided with a positioning groove, the A freely rolling steel ball is arranged on the positioning groove, and the steel ball clamp is placed between the positioning groove and the limiting chute of the sliding sleeve to keep the steel ball against sliding on the limiting chute of the sliding sleeve to limit The main body tube can only linearly slide back and forth relative to the sliding sleeve, and cannot rotate. The pneumatic tool structure with shock isolation and pressure relief according to claim 1, wherein the connecting part of the sliding sleeve and the intake head is assembled in a screw connection. The pneumatic tool structure with shock isolation and pressure relief as described in claim 1, wherein a guide bush and a limit cushion are installed in the air hole of the locking bolt, and the locking bolt passes through the guide bushing The sleeve and the air duct are connected with a sliding sleeve, and the limit soft cushion is used for the air duct to strike. The pneumatic tool structure with shock isolation and pressure relief according to claim 1, wherein the front end of the main tube is equipped with a transmission member, the transmission member is provided with a transmission rod and a disc-shaped pusher connected with the transmission rod , The transmission rod of the transmission part is inserted in front of the main tube The main body tube is provided with a set of ring grooves near the front end, a groove is provided on the set of ring grooves to communicate with the set of holes, the groove set is provided with two limit blocks, and the set of ring groove sets A tie ring is provided for fixing the two limiting blocks, the transmission member is limited by the two limiting blocks, a cylinder is assembled inside the main tube, and the cavity is arranged in the cylinder. The pneumatic tool structure with shock isolation and pressure relief according to claim 5, wherein the working piece is provided with a tool sleeve, the tool sleeve is placed on the outer side of the main tube to be combined, and the tool sleeve is equipped with a spring And a needle seat on which a plurality of needle-shaped bodies are inserted to protrude outside the tool sleeve, and the needle seat abuts against the pushing part of the transmission member. The pneumatic tool structure with shock isolation and pressure relief according to claim 1, wherein the elastic member is a hemispherical elastic body.

Images