TWM499496U

TWM499496U - Piston buffering structure

Info

Publication number: TWM499496U
Application number: TW103220547U
Authority: TW
Inventors: Jin-Kuan Xie
Original assignee: Jin-Kuan Xie
Priority date: 2014-11-19
Filing date: 2014-11-19
Publication date: 2015-04-21

Description

活塞緩衝結構Piston cushioning structure

本創作係有關於一種緩衝結構，尤指一種應用於往復式氣動手工具之活塞緩衝結構。This creation is about a cushioning structure, especially a piston cushioning structure applied to a reciprocating pneumatic hand tool.

按，往復式氣動手工具係一種利用高壓空氣作為工作動力源的手工具，習知的往復式氣動手工具，如第五圖所示，包含：一手工具本體10、一氣閥單元20、一氣缸30及一活塞件40，其中該手工具本體10具有一筒狀部101及一接設於該筒狀部101下側之握柄102，該筒狀部101係呈水平狀，內部設有一開口朝前之腔室103，該握柄102上設有一開關104及可供接設高壓空氣的進氣端(圖未示)，該腔室103可供氣閥單元20及氣缸30依序裝入組裝，該氣閥單元20貼靠於該氣缸30後端，該氣缸30內部設有一沿軸向設置之滑室301，該滑室301恰可供該活塞件40置入作前後往復滑動，另該氣缸30的內壁設有一空氣流道302，該空氣流道302設置於滑室301前端與氣閥單元20間連通，高壓空氣透過握柄102到達氣閥單元20。藉此，使用時開啟握柄102上的開關104，使高壓空氣經氣閥單元20控制由氣缸30之滑室301後端進入，推動活塞件40往前滑動位移至預定位置撞擊工具頭(圖中未示)，受該工具頭擋止而停止滑動，接著高壓空氣經氣閥單元20控制變換由空氣流道302進入氣缸30滑室301前端，推動活塞件40往後滑動位移撞擊氣閥單元20，受該氣閥單元20擋止而停止滑動，如此，往復前後推動活塞件40，進行預定的工作。Pressing, reciprocating pneumatic hand tool is a hand tool using high pressure air as working power source. The conventional reciprocating pneumatic hand tool, as shown in the fifth figure, comprises: a hand tool body 10, a gas valve unit 20, a cylinder And a piston member 40, wherein the hand tool body 10 has a cylindrical portion 101 and a handle 102 connected to a lower side of the cylindrical portion 101. The tubular portion 101 is horizontal and has an opening therein. The front chamber 103 is provided with a switch 104 and an intake end (not shown) for connecting high-pressure air, and the chamber 103 can be sequentially loaded into the valve unit 20 and the cylinder 30. Assembly, the valve unit 20 abuts against the rear end of the cylinder 30. The cylinder 30 is internally provided with an axially disposed sliding chamber 301. The sliding chamber 301 is just for the piston member 40 to be inserted back and forth for reciprocating sliding. An air flow path 302 is disposed in the inner wall of the cylinder 30. The air flow path 302 is disposed between the front end of the sliding chamber 301 and the gas valve unit 20, and the high pressure air passes through the handle 102 to reach the gas valve unit 20. Thereby, in use, the switch 104 on the handle 102 is opened, so that the high-pressure air is controlled by the gas valve unit 20 to enter the rear end of the sliding chamber 301 of the cylinder 30, and the piston member 40 is pushed forward and displaced to a predetermined position to strike the tool head (Fig. Not shown in the middle), stopped by the tool head and stopped sliding, then high The compressed air is controlled by the gas valve unit 20 to enter the front end of the sliding chamber 301 of the cylinder 30 by the air flow passage 302, and the piston member 40 is slidably displaced to the rear of the air valve unit 20, and is stopped by the air valve unit 20 to stop sliding. The piston member 40 is pushed back and forth to perform a predetermined work.

惟，該習知往復式氣動手工具，推動活塞件40往後滑動位移撞擊氣閥單元20時，會產生反作用力傳遞至使用者手部，如此，在活塞件40不斷的往復前後滑動位移過程中，不僅造成使用者需費更大的力氣握持該往復式氣動手工具，及容易有手痠之情況，並且由於活塞件40往後滑動位移時係直接撞擊氣閥單元20而停止，故易致使氣閥單元20損壞，縮短氣閥單元20之使用壽命。However, the conventional reciprocating pneumatic hand tool, when the piston member 40 is slid and displaced rearwardly and hits the gas valve unit 20, a reaction force is transmitted to the user's hand, so that the piston member 40 is continuously reciprocated before and after the sliding displacement process. In addition, it not only causes the user to have more effort to hold the reciprocating pneumatic hand tool, but also has a situation of easy hand acid, and since the piston member 40 slides backward and rearward, it directly hits the gas valve unit 20 and stops. The valve unit 20 is easily damaged, and the service life of the valve unit 20 is shortened.

本創作人有鑑於習知往復式氣動手工具，不僅使用費力，易造成手痠的問題，且氣閥單元易損壞，使用壽命短，是以乃思及創作的意念，經多方探討設計與試作樣品試驗，及多次修正改良後，終設計出本創作。In view of the conventional reciprocating pneumatic hand tools, the creator not only uses the laborious force, but also causes the problem of hand acid, and the valve unit is easy to be damaged, and the service life is short, which is the idea of creation and trial. After the sample test, and many corrections and improvements, the design was finally designed.

本創作提供一種活塞緩衝結構，其係應用於往復式氣動手工具，該具有活塞緩衝結構之往復式氣動手工具包含：一手工具本體、一氣閥單元、一氣缸、一活塞件、一滑動件、一壓縮彈簧及一防磨墊片，其中該手工具本體具有一水平狀筒狀部接設一握柄，該筒狀部內部設有一開口朝前之腔室，供氣閥單元及氣缸依序裝入組裝，該氣缸內部設有一沿軸向設置之滑室，該滑室恰可供該活塞件置入作前後往復滑動，該滑室後端並設有一容置槽，另該氣缸的內壁設有一空氣流道，該滑動件及壓縮彈簧係依序套置於該氣缸滑室後端的容置槽內，該防磨墊片係裝設於氣閥單元與氣缸間，使該壓縮彈簧彈抵於該滑動件與該防磨墊片間。The present invention provides a piston buffer structure, which is applied to a reciprocating pneumatic hand tool. The reciprocating pneumatic hand tool with a piston buffer structure comprises: a hand tool body, a gas valve unit, a cylinder, a piston member, a sliding member, a compression spring and a wear-resistant gasket, wherein the hand tool body has a horizontal cylindrical portion connected to a handle, the cylindrical portion is internally provided with an opening-facing chamber, and the gas supply valve unit and the cylinder are sequentially Loading and assembling, the cylinder is internally provided with an axially disposed sliding chamber, the sliding chamber is just for the piston member to be inserted back and forth for reciprocating sliding, and the rear end of the sliding chamber is provided with a receiving groove, and the inside of the cylinder The wall is provided with an air flow passage, the sliding member and the compression spring The sleeve is disposed in the accommodating groove at the rear end of the cylinder sliding chamber, and the wear-resistant gasket is installed between the valve unit and the cylinder, so that the compression spring is elastically abutted between the sliding member and the wear-resistant gasket. .

本創作之主要目的，在於其推動活塞件往後滑動位移時，不會直接撞擊氣閥單元，而是碰撞滑動件並順勢往後推移滑動件壓縮壓縮彈簧，故可緩衝減震，降低反作用力傳遞至使用者手部，達到省力及保護使用者手腕減輕痠痛及傷害的效果，並且可避免氣閥單元直接受撞擊，而延長氣閥單元之使用壽命。The main purpose of this creation is that when it pushes the piston member to slide backward, it does not directly hit the valve unit, but collides with the sliding member and pushes the sliding member to compress the compression spring. Therefore, it can cushion shock absorption and reduce reaction force. It is transmitted to the user's hand, which saves labor and protects the user's wrist from relieving soreness and injury, and can avoid the direct impact of the valve unit and prolong the service life of the valve unit.

〔習知〕[study]

10‧‧‧手工具本體10‧‧‧Hand tool body

101‧‧‧筒狀部101‧‧‧Cylinder

102‧‧‧握柄102‧‧‧Handle

103‧‧‧腔室103‧‧‧ chamber

104‧‧‧開關104‧‧‧ switch

20‧‧‧氣閥單元20‧‧‧ gas valve unit

30‧‧‧氣缸30‧‧‧ cylinder

301‧‧‧滑室301‧‧ ‧ sliding room

302‧‧‧空氣流道302‧‧‧Air flow path

40‧‧‧活塞件40‧‧‧ piston parts

〔本創作〕[this creation]

1‧‧‧手工具本體1‧‧‧Hand tool body

11‧‧‧筒狀部11‧‧‧Cylinder

111‧‧‧腔室111‧‧‧ chamber

12‧‧‧握柄12‧‧‧Handle

121‧‧‧開關121‧‧‧Switch

2‧‧‧氣閥單元2‧‧‧ gas valve unit

3‧‧‧氣缸3‧‧‧ cylinder

31‧‧‧滑室31‧‧‧Sliding room

32‧‧‧容置槽32‧‧‧ accommodating slots

33‧‧‧空氣流道33‧‧‧Air flow path

4‧‧‧活塞件4‧‧‧ piston parts

5‧‧‧滑動件5‧‧‧Sliding parts

51‧‧‧穿孔51‧‧‧Perforation

6‧‧‧壓縮彈簧6‧‧‧Compressed spring

61‧‧‧通道61‧‧‧ passage

7‧‧‧防磨墊片7‧‧‧wear pad

71‧‧‧通孔71‧‧‧through hole

第一圖係本創作應用於往復式氣動手工具之立體分解圖。The first figure is an exploded view of the reciprocating pneumatic hand tool.

第二圖係本創作應用於往復式氣動手工具之外觀立體圖。The second figure is a perspective view of the appearance of the reciprocating pneumatic hand tool.

第三圖係本創作應用於往復式氣動手工具之剖面圖。The third diagram is a cross-sectional view of the reciprocating pneumatic hand tool.

第四圖係本創作活塞件往復前後滑動之動作示意圖。The fourth figure is a schematic diagram of the movement of the piston member of the present invention to slide back and forth.

第五圖係習知往復式氣動手工具之剖面圖。The fifth figure is a cross-sectional view of a conventional reciprocating pneumatic hand tool.

請參閱第一圖、第二圖及第三圖，本創作活塞緩衝結構，係應用於往復式氣動手工具，該具有活塞緩衝結構之往復式氣動手工具包含：一手工具本體1、一氣閥單元2、一氣缸3、一活塞件4、一滑動件5、一壓縮彈簧6及一防磨墊片7，其中該手工具本體1具有一筒狀部11及一接設於該筒狀部11下側之握柄12，該筒狀部11係呈水平狀，內部設有一開口朝前之腔室111，該握柄12上設有一開關121及可供接設高壓空氣的進氣端(圖未示)，該氣閥單元2係裝設於該腔室111 內端部，高壓空氣可透過該握柄12到達該氣閥單元2，該氣缸3一部分穿入該腔室111內組裝，使該氣閥單元2貼靠於該氣缸3後側，該氣缸3內部設有一沿軸向設置之滑室31，該滑室31後端並設有一擴大狀之容置槽32，另該氣缸3的內壁設有一空氣流道33，該空氣流道33設置於該滑室31前端與該氣閥單元2間連通，該活塞件4係恰可置入該氣缸3的滑室31內，並可藉由高壓空氣推動而沿著該滑室31作前後往復滑動位移，該滑動件5係套置於該氣缸3的容置槽32內，並可沿著該容置槽32前後滑動位移，該滑動件5中央具有一軸向之穿孔51，該壓縮彈簧6係套置於該氣缸3的容置槽32內，並貼置於該滑動件5後側，該壓縮彈簧6中央具有一軸向之通道61，該防磨墊片7可為金屬材質，裝設於該氣閥單元2與該氣缸3間，使該壓縮彈簧6彈抵於該滑動件5與該防磨墊片7間，該防磨墊片7中央具有一軸向之通孔71，使該氣閥單元2經由該通孔71、通道61及穿孔51與氣缸3之滑室31後端相通。Referring to the first figure, the second figure and the third figure, the piston cushioning structure of the present invention is applied to a reciprocating pneumatic hand tool, and the reciprocating pneumatic hand tool with a piston buffer structure comprises: a hand tool body 1, a gas valve unit 2. A cylinder 3, a piston member 4, a sliding member 5, a compression spring 6 and a wear pad 7, wherein the hand tool body 1 has a cylindrical portion 11 and a cylindrical portion 11 is attached thereto. The handle 12 on the lower side is horizontal, and is internally provided with a chamber 111 having an opening facing forward. The handle 12 is provided with a switch 121 and an intake end for connecting high-pressure air (Fig. Not shown), the gas valve unit 2 is installed in the chamber 111 The inner end portion, the high-pressure air can pass through the grip 12 to the gas valve unit 2, and a part of the cylinder 3 is inserted into the chamber 111 to be assembled, so that the gas valve unit 2 abuts against the rear side of the cylinder 3, the cylinder 3 A sliding chamber 31 is disposed in the axial direction. The rear end of the sliding chamber 31 is provided with an enlarged receiving groove 32. The inner wall of the cylinder 3 is provided with an air flow passage 33. The air flow passage 33 is disposed at The front end of the sliding chamber 31 communicates with the gas valve unit 2, and the piston member 4 is just inserted into the sliding chamber 31 of the cylinder 3, and can be reciprocated back and forth along the sliding chamber 31 by being pushed by high-pressure air. Displacement, the sliding member 5 is sleeved in the accommodating groove 32 of the cylinder 3, and is slidably displaced back and forth along the accommodating groove 32. The sliding member 5 has an axial through hole 51 at the center thereof, and the compression spring 6 The sleeve is placed in the accommodating groove 32 of the cylinder 3 and is placed on the rear side of the sliding member 5. The central portion of the compression spring 6 has an axial passage 61. The wear-resistant gasket 7 can be made of metal. Provided between the gas valve unit 2 and the cylinder 3, the compression spring 6 is elastically struck between the sliding member 5 and the wear-resistant gasket 7, and the wear-resistant gasket 7 has a central portion thereof. The axial through hole 71, so that the gas valve unit 271, the perforations 51 and the passage 61 and the cylinder 3 of the rear end of the sliding chamber 31 communicates via the through hole.

藉此，使用時如第四圖所示，開啟握柄12上的開關121，使高壓空氣經氣閥單元2控制通過防磨墊片7的通孔71、壓縮彈簧6的通道61及滑動件5的穿孔51進入氣缸3之滑室31後端，推動活塞件4往前滑動位移至預定位置撞擊工具頭(圖中未示)，受該工具頭擋止而停止滑動，接著高壓空氣經氣閥單元2控制變換由空氣流道33進入氣缸3滑室31前端，推動活塞件4往後滑動位移至預定位置碰撞滑動件5並順勢往後推移滑動件5壓縮該壓縮彈簧6，達到緩衝減震效果，直到受該氣閥單元2擋止而停止滑動，如此，往復前後推動活塞件4，進行預定的工作。Thereby, as shown in the fourth figure, the switch 121 on the handle 12 is opened, so that the high-pressure air is controlled by the gas valve unit 2 through the through hole 71 of the wear pad 7, the passage 61 of the compression spring 6, and the sliding member. The through hole 51 of the 5 enters the rear end of the sliding chamber 31 of the cylinder 3, and pushes the piston member 4 to slide forward to a predetermined position to strike the tool head (not shown), and stops sliding by the tool head, and then the high pressure air passes through the gas. The valve unit 2 controls the change from the air flow passage 33 into the front end of the sliding chamber 31 of the cylinder 3, and pushes the piston member 4 to slide back to the predetermined position to collide with the sliding member 5 and pushes the sliding member 5 backward to compress the compression spring 6 to achieve buffer reduction. The shock effect is stopped until the valve unit 2 is stopped, so that the piston member 4 is pushed back and forth to perform a predetermined operation.

由上述具體實施例之結構，可得到下述之效益：本創作活塞緩衝結構應用於往復式氣動手工具，當其推動活塞件4往後滑動位移時，不會直接撞擊氣閥單元2，而是碰撞滑動件5並順勢往後推移滑動件5壓縮壓縮彈簧6，藉以緩衝減震，降低反作用力傳遞至使用者手部，達到使用操作省力及保護使用者手腕減輕痠痛及傷害的效果，並且可避免氣閥單元2直接受活塞件4撞擊，而延長氣閥單元2之使用壽命。According to the structure of the above specific embodiment, the following benefits can be obtained: the piston cushioning structure of the present invention is applied to a reciprocating pneumatic hand tool, and when it pushes the piston member 4 to slide backward, it does not directly hit the valve unit 2, and It is a collision sliding member 5 and the sliding member 5 is pressed backwards to compress the compression spring 6 to buffer the shock absorption, thereby reducing the reaction force transmitted to the user's hand, thereby achieving the effect of saving labor and protecting the user's wrist to relieve soreness and injury, and It is possible to prevent the gas valve unit 2 from being directly hit by the piston member 4 and prolonging the service life of the gas valve unit 2.

綜上所述，本創作確實已經達於突破性之結構，而具有改良之創作內容，同時又能夠達到產業上利用性與進步性，當符合專利法之規定，爰依法提出新型專利申請，懇請鈞局審查委員授予合法專利權，至為感禱。In summary, this creation has indeed reached a breakthrough structure, and has improved content of creation, while at the same time achieving industrial use and progress. When complying with the provisions of the Patent Law, it proposes a new type of patent application according to law. The census review committee granted legal patent rights and was praying.

1‧‧‧手工具本體1‧‧‧Hand tool body

11‧‧‧筒狀部11‧‧‧Cylinder

111‧‧‧腔室111‧‧‧ chamber

12‧‧‧握柄12‧‧‧Handle

121‧‧‧開關121‧‧‧Switch

2‧‧‧氣閥單元2‧‧‧ gas valve unit

3‧‧‧氣缸3‧‧‧ cylinder

31‧‧‧滑室31‧‧‧Sliding room

32‧‧‧容置槽32‧‧‧ accommodating slots

4‧‧‧活塞件4‧‧‧ piston parts

5‧‧‧滑動件5‧‧‧Sliding parts

51‧‧‧穿孔51‧‧‧Perforation

6‧‧‧壓縮彈簧6‧‧‧Compressed spring

61‧‧‧通道61‧‧‧ passage

7‧‧‧防磨墊片7‧‧‧wear pad

71‧‧‧通孔71‧‧‧through hole

Claims

一種活塞緩衝結構，其係應用於往復式氣動手工具，該具有活塞緩衝結構之往復式氣動手工具包含：一手工具本體，具有一筒狀部接設一握柄，該筒狀部內部設有一開口朝前之腔室；一氣閥單元，裝設於該腔室內端部，高壓空氣可透過該手工具本體到達該氣閥單元；一氣缸，穿入該腔室內組裝，使該氣閥單元貼靠於該氣缸後側，該氣缸內部設有一沿軸向設置之滑室；一活塞件，恰可置入該氣缸的滑室內，並可藉由氣閥單元切換高壓空氣推動而沿著該滑室作前後往復滑動位移；及一壓縮彈簧，設置於該氣缸的滑室後端，而位於該活塞件與該氣閥單元間，利用該壓縮彈簧的彈力，於活塞件往後滑動位移至預定位置時，受推擠而壓縮，藉以達到緩衝減震效果。The utility model relates to a piston buffer structure, which is applied to a reciprocating pneumatic hand tool. The reciprocating pneumatic hand tool with a piston buffer structure comprises: a hand tool body having a cylindrical portion connected to a handle, and a cylindrical portion is internally provided with a handle a chamber facing the front; a valve unit installed at the end of the chamber, high-pressure air can pass through the body of the hand tool to reach the valve unit; a cylinder penetrates into the chamber to assemble, and the valve unit is attached Depending on the rear side of the cylinder, the cylinder is internally provided with an axially disposed sliding chamber; a piston member can be placed in the sliding chamber of the cylinder, and can be driven along with the high-pressure air by the valve unit. a reciprocating sliding displacement of the chamber; and a compression spring disposed at a rear end of the sliding chamber of the cylinder and located between the piston member and the valve unit, and utilizing the elastic force of the compression spring to slide the piston member backward to a predetermined position When the position is pressed, it is compressed by pushing, so as to achieve the buffer damping effect.

如申請專利範圍第1項所述之活塞緩衝結構，其另包含有一滑動件，該滑動件係設置該氣壓的滑室後端，並位於活塞件與壓縮彈簧間。The piston cushioning structure of claim 1, further comprising a sliding member disposed at a rear end of the air chamber and located between the piston member and the compression spring.

如申請專利範圍第2項所述之活塞緩衝結構，其中該氣缸之滑室後端設有一容置槽，供該滑動件與該壓縮彈簧容置，且該滑動件可沿著該容置槽前後滑動位移。The piston buffer structure of claim 2, wherein a rear end of the sliding chamber of the cylinder is provided with a receiving groove for receiving the sliding member and the compression spring, and the sliding member is along the receiving groove. Sliding displacement back and forth.

如申請專利範圍第1項所述之活塞緩衝結構，其中該氣缸之滑室後端設有一容置槽，供該壓縮彈簧容置。The piston buffer structure according to claim 1, wherein a rear end of the sliding chamber of the cylinder is provided with a receiving groove for receiving the compression spring.

如申請專利範圍第3或4項所述之活塞緩衝結構，其中該氣缸滑室後端之容置槽為擴大狀。The piston cushioning structure according to claim 3 or 4, wherein the rear end of the cylinder sliding chamber The receiving groove is enlarged.

如申請專利範圍第2或3項所述之活塞緩衝結構，其中該滑動件中央具有一軸向之穿孔。The piston cushioning structure of claim 2, wherein the slider has an axial perforation in the center.

如申請專利範圍第1項所述之活塞緩衝結構，其中該壓縮彈簧中央具有一軸向之通道。The piston cushioning structure of claim 1, wherein the compression spring has an axial passage in the center.

如申請專利範圍第1項所述之活塞緩衝結構，其中該氣缸的內壁設有一空氣流道，該空氣流道設置於該滑室前端與該氣閥單元間連通。The piston buffer structure according to claim 1, wherein an inner air wall of the cylinder is provided with an air flow passage, and the air flow passage is disposed at a front end of the sliding chamber to communicate with the gas valve unit.

如申請專利範圍第1項所述之活塞緩衝結構，其另包含有一防磨墊片，該防磨墊片裝設於該氣閥單元與該氣缸間，受該壓縮彈簧彈抵。The piston cushioning structure according to claim 1, further comprising an anti-wear gasket disposed between the gas valve unit and the cylinder and being biased by the compression spring.

如申請專利範圍第9項所述之活塞緩衝結構，其中該防磨墊片中央具有一軸向之通孔。The piston cushioning structure of claim 9, wherein the wear pad has an axial through hole in the center.