WO2023160636A1 - 一种打钉枪的撞针锁定结构 - Google Patents
一种打钉枪的撞针锁定结构 Download PDFInfo
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- WO2023160636A1 WO2023160636A1 PCT/CN2023/077998 CN2023077998W WO2023160636A1 WO 2023160636 A1 WO2023160636 A1 WO 2023160636A1 CN 2023077998 W CN2023077998 W CN 2023077998W WO 2023160636 A1 WO2023160636 A1 WO 2023160636A1
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- WIPO (PCT)
- Prior art keywords
- locking
- firing pin
- striker
- shaft
- locking piece
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
- B25C1/047—Mechanical details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C7/00—Accessories for nailing or stapling tools, e.g. supports
Definitions
- the invention belongs to the technical field of nailing guns, and relates to a nailing gun, in particular to a firing pin locking structure of the nailing gun.
- the nail gun is a product of modern nail fastening technology, which can shoot nails and belongs to the direct consolidation technology. It is an essential hand tool for carpentry and building construction.
- the nail gun products on the market are mainly pneumatic nail guns.
- the working principle of the air nail gun is to use the high-pressure gas generated by the air pump (air compressor) as the power source.
- the high-pressure gas drives the firing pin in the cylinder of the nail gun to do a hammering movement, and the nails in the nail groove are inserted into the object or the nails are shot out. Because the firing pin is under the action of high-pressure gas, the unlocking and locking of the firing pin is subject to greater friction, and the firing pin is worn during use, which may eventually lead to the failure of the firing pin lock.
- the Chinese patent [Application No.: 201910099968.7] discloses a nailing gun with a casing and a firing pin capable of reciprocating movement relative to the casing.
- the casing is provided with a locking piece. and an intermediate piece that can move relative to the housing, the intermediate piece is located between the locking piece and the striker, and the middle piece has a locking part 1 and a locking part 2 that can be stuck on the striker respectively; the locking piece can lean against the locking part 1 and Blocking the movement of the intermediate piece relative to the housing keeps the locking part 2 in engagement with the striker, or the locking piece can release the blocking so that the locking part 2 can move and disengage the striker.
- the hinged lever when the hinged lever rotates to the position of the dial, it can trigger the dial to drive the lock to rotate, then the lock can release the blocking of the middle piece, so that the middle piece is pushed by the striker relative to the housing Rotate and overcome the elastic force of the torsion spring to disengage the striker until the blocking surface 2 on the locking piece contacts and abuts against the backstop surface on the intermediate piece.
- the middle part is unlocked by rotation, and during the unlocking process, it still contacts with the groove of the striker for a long time to generate greater friction. At the same time, the contact time between the middle part and the locking part is also longer, which accelerates the firing pin. , The wear of the middle piece and the locking piece reduces the service life of the nailing gun.
- the purpose of the present invention is to solve the above problems in the existing technology, and propose a locking structure for the firing pin of a nailing gun.
- the technical problem to be solved by the present invention is: how to improve the service life of the nailing gun.
- a locking structure of a firing pin of a nailing gun the nailing gun includes an inner casing and a firing pin that can move relative to the inner casing and is used for nailing, on the inner casing
- a locking piece for indirectly or directly locking the striker it is characterized in that the inner housing is also provided with a driving mechanism and a top shaft that can move along the vertical direction of the inner housing driven by the driving mechanism.
- the top shaft is connected with the locking part, and when the striker is unlocked, the top shaft and the locking part can move along the vertical direction of the inner casing and away from the striker.
- the jacking shaft and the locking piece can move along the vertical direction of the inner housing and away from the striker, that is, the locking piece and the jacking shaft move to the top or bottom of the inner shell, and the detachment speed of the locking piece is fast, reducing
- the contact between the locking piece and the firing pin or the locking piece, the firing pin and other parts is improved, the wear of the locking piece and the firing pin or the locking piece, the firing pin and other parts is slowed down, and the service life of the nailing gun is improved.
- This proposal provides a technical proposal with different technical concepts, which can reach the level of the prior art.
- the driving mechanism includes a turntable disposed in the inner casing, at least one boss is provided on the turntable, and one end of the top shaft is connected with the locking member, so The other end of the jacking shaft is provided with a propping block capable of abutting against the boss. After the abutting block touches the boss, both the jacking shaft and the locking piece move up the inner casing along the vertical direction of the inner casing. At this time, the striker is unlocked.
- the striker When the abutting block is separated from the boss, the striker can be re-locked or Continue to move, the striker does not come into contact with other objects in the locking structure during the continuous movement of the striker, the movement and reset of the lock in this scheme are controlled by the top shaft, the structure is simple, and the smooth progress of locking and unlocking of the striker is guaranteed.
- the jack shaft is provided with a reset spring for the reset of the jack shaft, one end of the reset spring leans against or is fixed on the jack shaft, and the other end of the reset spring leans against inside the inner casing.
- the back-moving spring is used for resetting in the vertical direction of the top shaft.
- the locking piece directly locks the firing pin, and a groove is also provided on the firing pin, and the locking piece includes a lock portion.
- the lock portion is located in the groove and directly locks the striker; when the striker is unlocked, the lock is located above or below the groove.
- the inner casing is also provided with a fixed block close to the locking piece, the fixed block and the locking piece are located on the same side of the firing pin, and the fixed block is compared to the locking piece. Far away from the striker, when the striker is locked, the fixed block, the locking piece and the partial structure of the striker are on the same level.
- the fixing block is used to prevent the locking part from moving in the horizontal direction, thereby improving the locking effect of the locking part on the striker.
- the contacting parts of the fixing block and the locking part are all beveled and matched; or the fixing block or the locking part has a bevel.
- the fixed block is provided with an inclined surface, and the upper edge of the inclined surface is farther away from or closer to the locking piece than the lower edge.
- the locking piece indirectly locks the firing pin
- the firing pin is provided with a groove
- an intermediate piece is provided between the locking piece and the firing pin
- the middle pieces respectively have The first locking part and the second locking part that can be stuck on the striker, the locking part can abut against the first locking part and block the movement of the middle part relative to the inner housing so that the second locking part is engaged with the groove of the striker.
- a rotating shaft is rotatably connected to the inner housing, and a torsion spring with one end capable of abutting against the inner housing is sheathed on the rotating shaft, and the other end of the torsion spring is fixedly connected to the rotating shaft, and the intermediate piece is connected to On the axis of rotation, when the striker is unlocked, said locking element is located above or below the intermediate element.
- the firing pin When the firing pin is unlocked, it drives the middle piece to rotate. During the unlocking process of the firing pin, the middle piece is no longer in contact with the locking piece, which slows down the wear of the middle piece and the locking piece, and improves the service life of the nailing gun.
- the inner casing is also connected with a limiting shaft, and the locking member is provided with a limiting hole matching the limiting shaft, and the limiting shaft is located at the position of the limiting shaft. inside the hole.
- the limiting shaft and the limiting hole work together to prevent the locking piece from rotating in the horizontal direction. When the striker is locked, the locking piece abuts against the middle piece, which improves the locking effect of the middle piece on the striker.
- a turntable connected to the output shaft of the motor is also provided in the inner casing, a boss is arranged on the turntable, the jack shaft is fixedly connected with the locking member, and the jack
- the shaft is provided with a reset device that can abut against the inner casing at one end, and the other end of the reset device abuts against the limit platform of the top shaft, and the abutment shaft is also connected to the locking piece, and the abutment
- An ejection block is provided at one end of the shaft, and the ejection block can lean against the boss.
- the periphery of the boss and the abutting block is arc-shaped, a limit platform or a fixing hole is provided on the top shaft, and the return spring leans against the limit platform Or fixed in the fixing hole.
- the periphery of the boss and the abutting block is an arc-shaped structure, which plays a certain guiding and buffering role for the abutting block and the movement to the boss, so that the movement of the locking member is smoother.
- the present invention has the following advantages:
- the top shaft and the locking piece can move along the vertical direction of the inner casing and away from the firing pin, that is, the locking piece and the top shaft move to the upper part of the inner casing, and the detachment speed of the locking piece is fast, which reduces the contact between the locking piece and the firing pin.
- the contact between the firing pin or the locking piece, the firing pin and other parts slows down the wear of the locking piece and the firing pin or the locking piece, the firing pin and other parts, and improves the service life of the nailing gun.
- the periphery of the boss and the abutment block is an arc structure, which plays a certain guiding and buffering role for the movement of the abutment block and the ejector block to the boss, making the movement of the locking piece more smooth.
- Fig. 1 is the three-dimensional structure schematic diagram of the present invention
- Fig. 2 is the sectional structure schematic diagram of the present invention
- Fig. 3 is a partial structural schematic diagram in Embodiment 1 of the present invention.
- Fig. 4 is a partial structural schematic diagram in Embodiment 1 of the present invention.
- Fig. 5 is a partial structural schematic diagram in Embodiment 1 of the present invention.
- Fig. 6 is a partial structural schematic diagram in Embodiment 2 of the present invention.
- Fig. 7 is a partial structural schematic diagram in Embodiment 2 of the present invention.
- Fig. 8 is a schematic cross-sectional structure diagram in Embodiment 2 of the present invention.
- Fig. 9 is a partial structural diagram of Embodiment 2 of the present invention.
- the nailing gun includes an inner housing 1a, an outer housing 1b and a striker 2 that can move relative to the inner housing 1a for nailing, and the inner housing 1a also includes A first cylinder 18 and a second cylinder 19 are provided, and a first piston 17 capable of compression stroke and return stroke is arranged in the first cylinder 18, and the first piston 17 divides the first cylinder 18 which can be used to store gas
- the first air chamber 18a, the first piston 17 is connected with a piston rod 16, the piston rod 16 is connected with a crank 15, and the driving mechanism includes a motor 13, a gear reducer 14, a turntable 5 and a crank 15.
- the motor 13 arranged in the inner casing 1a is connected to the gear reducer 14, the output shaft of the gear reducer 14 is connected to the crank 15, and the piston rod 16 and the crank 15 form a crank connecting rod structure, which changes the rotational power of the motor The power to drive the first activity to perform linear reciprocating movement.
- the second cylinder 19 is provided with a second piston 20, the striker 2 is fixedly connected on the second piston 20, and the second piston 20 divides the second air chamber 19a in the second cylinder 19, between the first air chamber 18a and the second air chamber The two air chambers 19a communicate with each other through a fully enclosed air passage.
- the motor 13 drives the first piston 17 to perform a compression stroke and a return stroke.
- the front end of the inner casing 1a is provided with a nail box 30, and the nails in the nail box 30 will automatically rise to the front of the striker 2 under the action of the spring.
- the locking structure of the firing pin is unlocked, so that both the firing pin 2 and the second piston 20 are in the unlocked state, and the second piston 20 moves at a high speed under the action of high pressure, driving the firing pin 2 to hit the nail in front of the firing pin 2 , to complete a nailing action.
- the first piston 17 performs a return stroke, and under the action of negative pressure, the second piston 20 is pulled back from the position after the firing pin to the position where the firing pin is locked, and the firing pin 2 is re-locked. Continuous nailing.
- the striker 2 is provided with a groove 21, and the inner casing 1a is also provided with a blocking piece 12, a top shaft 4 and a locking piece 3, the blocking piece 12 and the locking piece 3 are fixed on the top shaft 4, and the blocking piece 12 is located on the locking piece. 3 above.
- the lock part 3 is provided with a lock part 31
- the striker 2 is provided with a lock part 31 matching the shape of the groove 21
- the lock part 3 is engaged in the groove 21 by the lock part 31 to lock the striker 2 .
- the inner housing 1a is also provided with a fixed block 9 close to the locking piece 3.
- the fixed block 9 and the locking piece 3 are located on the same side of the striker 2.
- the fixed block 9 is farther away from the striker 2 than the locking piece 3.
- the fixed block 9 and the locking piece The contact part of 3 can be set as an inclined surface and matched, and the upper edge of the inclined surface of the fixing block 9 is farther away from the locking member 3 than the lower edge.
- the fixing block 9 is used to prevent the locking member 3 from moving in the horizontal direction, which improves the locking effect of the locking member 3 on the striker 2 .
- the fixed block 9 can also be replaced by a structure in which a positioning shaft is provided on the inner casing 1 a and a positioning hole is provided on the locking member 3 .
- the positioning shaft is inserted into the positioning hole, and the partial structures of the locking member 3 and the striker 2 are on the same horizontal plane.
- the positioning shaft is used to prevent the locking member 3 from rotating in the horizontal direction, and the structure of the positioning hole and the positioning shaft can save the space of the locking structure of the striker 2 .
- the inner casing 1a is also provided with a turntable 5 connected with the crank linkage mechanism, the turntable 5 is provided with a boss 51, the jack shaft 4 is fixedly connected with the locking member 3, and the other end of the jack shaft 4 is provided There is an abutment block 41 that can abut on the boss 51.
- the periphery of the boss 51 and the abutment block 41 is arc-shaped, and the top shaft 4 is provided with a return spring 10 that can abut against the inner casing 1a. The other end of the return spring 10 abuts against the limit platform 42 of the top shaft 4 .
- the working principle of this embodiment is that when the striker 2 is locked, the abutting block 41 of the jacking shaft 4 contacts the turntable 5, and the return spring 10 is in a compressed state. With the downward force of the inner casing 1a, the lock part 31 is located in the groove 21 of the striker 2 and locks the striker 2; The locking part 3 is driven to move upwards of the inner casing 1 a, so that the locking part 31 is separated from the groove 21 and finally is above the striker 2 . As an alternative solution, when the striker 2 is unlocked, the lock part 31 is separated from the groove 21 and finally under the striker 2, and the corresponding driving mechanism is adjusted accordingly.
- the structure of this embodiment is roughly the same as that of Embodiment 1.
- the locking member 3 adopts the method of directly locking the striker 2, and an intermediate member 6 is provided between the locking member 3 and the striker 2.
- the housing 1a is rotatably connected with a rotating shaft 7, the middle piece 6 is fixed on the rotating shaft 7, the rotating shaft 7 is also provided with a blocking piece 12, the blocking piece 12 is located above the middle piece 6, and the inner casing 1a is also connected with a limit
- the shaft 8 and the locking member 3 are provided with a limit hole 33 matching the limit shaft 8 , and the limit shaft 8 is located in the limit hole 33 .
- the intermediate piece 6 has a locking part 1 61 and a locking part 2 62 respectively, the locking part 2 62 can be snapped into the groove 21 of the striker 2, and the inner side of the locking part 61 has a backstop surface 621 for locking.
- the inside of the lock hook part 32 has a blocking surface one 321, and the outside of the locking hook part 32 has a blocking surface two 322.
- a limiting shaft 8 is also connected to the inner housing 1 a , and a limiting hole 33 matching the limiting shaft 8 is provided on the locking member 3 , and the limiting shaft 8 is located in the limiting hole 33 .
- the boss 51 in this embodiment includes a first boss 511 and a first boss 511, and a torsion spring 11 with one end capable of abutting against the inner casing 1a is sheathed on the rotating shaft 7 , the other end of the torsion spring 11 is fixedly connected on the rotating shaft 7 .
- the working principle of this embodiment is that when the striker 2 is locked, the blocking surface 1 321 can abut against the abutment surface 622 and keep the locking portion 2 62 fixed in the groove 21 of the striker 2;
- the abutting block 41 of the shaft 4 abuts against the first boss 511, at this time the jacking shaft 4 drives the locking piece 3 to move vertically upward along the inner casing 1a, the locking piece 3 is located above the middle piece 6, and the middle piece 6
- the striker 2 moves toward the front end of the inner casing 1a driven by the high-pressure gas, and the striker 2 makes the locking part 2 62 rotate and completely separate from the groove 21.
- the twist of the rotating shaft 7 The spring 11 is in a compressed state and one end of the torsion spring 11 abuts against the inner casing 1a; in order to keep the gap between the locking part 2 62 and the striker 2, the motor 13 drives the turntable 5 to rotate, and the abutting block 41 is separated from the first boss 511 , the return spring 10 drives the top shaft 4 and the locking piece to move downward along the vertical direction of the inner casing 1a, at this time, the blocking surface 2 322 can abut against the anti-retraction surface 621 and keep the distance between the intermediate piece 6 and the striker 2 always There is a gap; after the firing pin 2 finishes nailing, the abutting block 41 passes through the second boss 512 on the turntable, and finally the locking part 2 62 is kept fixed in the firing pin 2 again.
- the locking member 3 is located below the intermediate member 6, and the corresponding driving mechanism is adjusted accordingly.
- the structure of the third embodiment is basically the same as that of the first embodiment, and the only difference is that the inner casing 1a is also provided with an abutment shaft including an ejector block, the ejector block is connected with the locking piece 3, and no abutment block is provided on the ejector shaft 4 41, the movement of the locking member 3 is realized through the ejection block and the boss 51.
- the abutment shaft is used to move the locking member vertically upward, and the reset spring 10 on the top shaft 4 resets the locking member.
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Abstract
一种打钉枪的撞针锁定结构，打钉枪包括内壳体（1a）和能够相对内壳体（1a）移动且用于打钉的撞针（2），内壳体（1a）上还设有用于间接或直接锁住撞针（2）的锁定件（3），内壳体（1a）上还设有驱动机构和在驱动机构带动下能沿内壳体（1a）竖直方向运动的顶轴（4），顶轴（4）与锁定件（3）连接，撞针（2）解锁时，顶轴（4）和锁定件（3）能沿内壳体（1a）竖直方向且远离撞针（2）移动。锁定件（3）的脱离速度快，减少了锁定件（3）与撞针（2）或者锁定件（3）、撞针（2）和其他部件的接触，减缓了锁定件（3）与撞针（2）或者锁定件（3）、撞针（2）和其他部件的磨损，提高了打钉枪的使用寿命。
Description
本发明属于打钉枪技术领域，涉及一种打钉枪，特别涉及一种打钉枪的撞针锁定结构。
打钉枪是现代射钉紧固技术产品，能发射射钉，属于直接固结技术。是木工、建筑施工等必备的手动工具。 目前市面上打钉枪的产品主要以气动打钉枪为主，气钉枪工作原理以气泵(空气压缩机)产生的高压气体为动力源, 压气体产生时，撞针处于锁定状态，在撞针解锁时，高压气体带动钉枪气缸里的撞针做锤击运动,将出钉槽中的钉入物体中或者将排钉射出去。由于撞针受到高压气体的作用，撞针的解锁和锁定受到较大的摩擦力，撞针在使用过程中受到磨损，可能最终导致撞针锁定失效。
申请人针对撞针的锁定结构给出了一种设计方案，中国专利【申请号：201910099968.7】公开了一种打钉枪，壳体和能够相对壳体往复移动的撞针，壳体上设有锁定件和能够相对壳体移动的中间件，中间件位于锁定件和撞针之间，中间件上分别具有锁定部一和能够卡在撞针上的锁定部二；锁定件能够抵靠在锁定部一上并阻挡中间件相对壳体移动使锁定部二与撞针保持卡接，或者锁定件能够解除阻挡使锁定部二能够移动并脱开撞针。
上述结构中，当铰接杆转动到拨块的位置时，其能够触发拨块驱动锁定件转动，那么此时锁定件就能够解除对于中间件的阻挡，使得中间件在撞针的推动下相对壳体转动并克服扭簧的弹力脱开撞针，直至锁定件上的阻挡面二与中间件上的止退面接触抵靠。上述结构中，中间件通过旋转进行解锁，在解锁过程中仍与撞针的凹槽发生较长时间的接触产生较大摩擦，同时中间件和锁定件之间的接触时间也较长，加速了撞针、中间件和锁定件的磨损，降低了打钉枪的使用寿命。
本发明的目的是针对现有的技术存在上述问题，提出了一种打钉枪的撞针锁定结构，本发明所要解决的技术问题是：如何提高打钉枪的使用寿命。
本发明的目的可通过下列技术方案来实现：一种打钉枪的撞针锁定结构，打钉枪包括内壳体和能够相对内壳体移动且用于打钉的撞针，所述内壳体上还设有用于间接或直接锁住撞针的锁定件，其特征在于，所述内壳体上还设有驱动机构和在驱动机构带动下能沿内壳体竖直方向运动的顶轴，所述顶轴与锁定件连接，撞针解锁时，所述顶轴和锁定件能沿内壳体竖直方向且远离撞针移动。
本方案中，撞针解锁过程中，顶轴和锁定件能沿内壳体竖直方向且远离撞针移动即锁定件和顶轴往内壳体的上方或下方移动，锁定件的脱离速度快，减少了锁定件与撞针或者锁定件、撞针和其他部件的接触，减缓了锁定件与撞针或者锁定件、撞针和其他部件的磨损，提高了打钉枪的使用寿命。本方案提供了一种技术构思不同的技术方案，能够达到现有技术的水平。
在上述的打钉枪的撞针锁定结构中，所述驱动机构包括设在所述内壳体内的转盘，所述转盘上设有至少一个凸台，所述顶轴的一端与锁定件连接，所述顶轴的另一端设有能抵靠在凸台上的抵顶块。抵顶块接触到凸台后，顶轴和锁定件均沿着内壳体竖直方向往内壳体上方移动，此时撞针解锁，当抵顶块与凸台分离时，撞针能重新锁定或者继续移动，在撞针继续移动过程中撞针不与锁定结构中的其他物体发生接触，本方案中锁定件的移动和复位均由顶轴控制，结构简单，保证撞针锁定和解锁的顺利进行。
在上述的打钉枪的撞针锁定结构中，所述顶轴上设有用于顶轴复位的复位弹簧，复位弹簧的一端抵靠或固定在顶轴上，所述的复位弹簧的另一端抵靠在内壳体内。复位弹簧用于在顶轴竖直方向上的复位。
在上述的打钉枪的撞针锁定结构中，所述锁定件直接锁住撞针，所述撞针上还设置有凹槽，所述锁定件包括锁部，撞针锁定时，所述锁部位于凹槽内且直接锁住撞针；撞针解锁时，所述锁部位于凹槽的上方或下方。
在上述的打钉枪的撞针锁定结构中，所述内壳体上还设有靠近锁定件的固定块，所述固定块和锁定件位于撞针的同一侧，所述固定块相比于锁定件远离撞针，撞针锁定时，所述固定块、锁定件和撞针的部分结构处于同一水平面上。固定块用于防止锁定件在水平方向发生移动，提高了锁定件对于撞针的锁定效果。
在上述的打钉枪的撞针锁定结构中，所述固定块与锁定件相接触的部分均为斜面且相匹配；或者所述固定块或者锁定件具有斜面。固定块上设有斜面，斜面的上边相较于下边远离或者靠近锁定件。上述结构有利于锁定件竖直朝向内壳体运动时，锁定件不容易出现卡顿，为锁定件的运动提供一定的导向作用。
在上述的打钉枪的撞针锁定结构中，所述锁定件间接锁住撞针，所述撞针上设有凹槽，所述锁定件和撞针之间设有中间件，所述中间件上分别具有锁定部一和能够卡在撞针上的锁定部二，所述锁定件能够抵靠在锁定部一上并阻挡中间件相对内壳体移动使锁定部二与撞针的凹槽保持卡接，所述内壳体上转动连接有转动轴，所述转动轴上套设有一端能抵靠在内壳体上的扭簧，所述扭簧的另一端固连在转动轴上，所述中间件连接在转动轴上，撞针解锁时，所述锁定件位于中间件的上方或下方。撞针解锁时，带动中间件旋转，在撞针解锁过程中，中间件于锁定件不再接触，减缓了中间件和锁定件的磨损，提高了打钉枪的使用寿命。
在上述的打钉枪的撞针锁定结构中，所述内壳体上还连接有限位轴，所述锁定件上设有与限位轴相匹配的限位孔，所述限位轴位于限位孔内。限位轴与限位孔共同作用，防止锁定件在水平方向上发生转动，在撞针锁定时，锁定件抵靠在中间件上，提高了中间件对于撞针的锁定效果。
在上述的打钉枪的撞针锁定结构中，所述内壳体内还设有与电机输出轴连接的转盘，所述转盘上设有凸台，所述顶轴与锁定件固定连接，所述顶轴上设有一端能抵靠在内壳体上的复位装置，所述复位装置的另一端抵靠在顶轴的限位台上，所述锁定件上还连接有抵靠轴，所述抵靠轴一端设有顶出块，所述顶出块能抵靠在凸台上。
在上述的打钉枪的撞针锁定结构中，所述凸台和抵顶块的周边为弧形，所述顶轴上设有限位台或者固定孔，所述复位弹簧抵靠在限位台上或者固定在固定孔中。凸台和抵顶块的周边为弧形结构对于抵顶块和移动到凸台上起到一定的导向和缓冲作用，使得锁定件的移动更加的顺滑。
与现有技术相比，本发明具有以下优点：
1、撞针解锁过程中，顶轴和锁定件能沿内壳体竖直方向且远离撞针移动即锁定件和顶轴往内壳体的上方移动，锁定件的脱离速度快，减少了锁定件与撞针或者锁定件、撞针和其他部件的接触，减缓了锁定件与撞针或者锁定件、撞针和其他部件的磨损，提高了打钉枪的使用寿命。本方案提供了一种技术构思不同的技术方案，能够达到现有技术的水平。
2、凸台和抵顶块的周边为弧形结构对于抵顶块和顶出块移动到凸台上起到一定的导向和缓冲作用，使得锁定件的移动更加的顺滑。
图1是本发明的立体结构示意图；
图2是本发明的剖面结构示意图；
图3是本发明实施例一中的部分结构示意图；
图4是本发明实施例一中的部分结构示意图；
图5是本发明实施例一中的部分结构示意图；
图6是本发明实施例二中的部分结构示意图；
图7是本发明实施例二中的部分结构示意图；
图8是本发明实施例二中的剖面结构示意图；
图9是本发明实施例二中的部分结构示意图。
图中，1a、内壳体；1b、外壳体；2、撞针；21、凹槽；3、锁定件；31、锁部；32、锁钩部；321、阻挡面一；322、阻挡面二；33、限位孔；4、顶轴；41、抵顶块；42、限位台；5、转盘；51、凸台；511、第一凸台；512、第二凸台；6、中间件；61、锁定部一；611、止退面；612、抵靠面；62、锁定部二； 7、转动轴；8、限位轴；9、固定块；10、复位弹簧；11、扭簧；12、阻挡片；13、电机；14、齿轮减速器；15、曲柄；16、活塞杆；17、第一活塞；18、第一气缸；18a、第一气室；19、第二气缸；19a、第二气室；20、第二活塞；30、钉盒。
以下是本发明的具体实施例并结合附图，对本发明的技术方案作进一步的描述，但本发明并不限于这些实施例。
如图1、图2、图3和图4所示，打钉枪包括内壳体1a、外壳体1b以及能够相对内壳体1a移动用于打钉的撞针2，在内壳体1a 内还设有第一气缸18和第二气缸19，在第一气缸18内设有能够进行压缩冲程和回复冲程的第一活塞17，且第一活塞17划分出第一气缸18内能够用于存储气体的第一气室18a，第一活塞上17连接有活塞杆16，在活塞杆16连接曲柄15，驱动机构包括电机13、齿轮减速器14、转盘5和曲柄15。电机13设置在内壳体1a内的电机13与齿轮减速器14连接，齿轮减速器14的输出轴与曲柄15连接，活塞杆16和曲柄15形成了曲柄连杆结构，将电机的旋转动力改变为驱动第一活进行直线往复移动的动力。在第二气缸内19设有第二活塞20，撞针2 固连在第二活塞20上，第二活塞20划分出第二气缸19内的第二气室19a，在第一气室18a和第二气室19a之间通过全封闭的通气通道相互连通。电机13带动第一活塞17进行压缩冲程和回复冲程。在内壳体1a的前端设有钉盒30，钉盒30内的钉子在弹簧的作用下会自动上升到撞针2前。在第一活塞17完成压缩冲程后，撞针锁定结构解锁，使撞针2和第二活塞20都处于解锁状态，在第二活塞20在高压的作用下高速移动，带动撞针2撞击撞针2前方的钉子，完成一次打钉动作。之后第一活塞17进行回复冲程，在负压的作用下，将第二活塞20从位于撞针射钉后的位置重新拉回到位于撞针锁定的位置，撞针2被重新锁定，如此往复循环，实现连续打钉。
撞针2上设有凹槽21，内壳体1a上还设有阻挡片12、顶轴4和锁定件3，阻挡片12和锁定件3均固定在顶轴4上，阻挡片12位于锁定件3的上方。锁定件3上设有锁部31，撞针2上设有与凹槽21形状相匹配的锁部31，锁定件3通过锁部31卡接在凹槽21内来锁定撞针2。内壳体1a上还设有靠近锁定件3的固定块9，固定块9和锁定件3位于撞针2的同一侧，固定块9相比于锁定件3远离撞针2，固定块9和锁定件3相接触的部分可设置为为斜面且相匹配，固定块9斜面的上边相较于下边远离锁定件3。锁定件3撞针2锁定时，固定块9、锁定件3和撞针2的部分结构处于同一水平面上。固定块9用于防止锁定件3在水平方向发生移动，提高了锁定件3对于撞针2的锁定效果。固定块9还可以通过在内壳体1a上还设有定位轴和在锁定件3上设有定位孔的结构来替代。定位轴插接在定位孔内，锁定件3和撞针2的部分结构处于同一水平面上。定位轴用于防止锁定件3在水平方向上发生转动，定位孔和定位轴的结构能节省撞针2锁定结构的空间。
如图5所示，内壳体1a上还设有与曲柄连杆机构连接的转盘5，转盘5上设有凸台51，顶轴4与锁定件3固定连接，顶轴4的另一端设有能抵靠在凸台51上的抵顶块41，凸台51和抵顶块41的周边为弧形，顶轴4上设有一端能抵靠在内壳体1a上的复位弹簧10，复位弹簧10的另一端抵靠在顶轴4的限位台42上。
本实施例的工作原理为，撞针2锁定时，顶轴4的抵顶块41与转盘5接触，复位弹簧10处于压缩状态，在复位弹簧10的作用下，顶轴4和锁定件3受到沿着内壳体1a向下的力，使得锁部31位于撞针2的凹槽21内锁住撞针2；撞针2解锁时，顶轴4的抵顶块41抵靠凸台51上，顶轴4带动锁定件3往内壳体1a上方移动，使得锁部31从凹槽21中分离且最终在撞针2上方。作为可替代的方案撞针2解锁时，锁部31从凹槽21中分离且最终在撞针2下方，相应的驱动机构做相应的调整。
如图6所示，本实施例与实施例一的结构大致相同，本实施例中锁定件3间采用接锁住撞针2的方式，锁定件3和撞针2之间设有中间件6，内壳体1a上转动连接有转动轴7，中间件6固定在转动轴7上，转动轴7上还设有阻挡片12，阻挡片12位于中间件6上方，内壳体1a上还连接有限位轴8，锁定件3上设有与限位轴8相匹配的限位孔33，限位轴8位于限位孔33内。
如图7所示，中间件6上分别具有锁定部一61和锁定部二62，锁定部二62能卡接在撞针2的凹槽21内，锁定部一61内侧具有止退面621，锁定部一61的外侧上具有抵靠面622，锁定件3上具有呈钩状的锁钩部32，锁钩部32的内侧具有阻挡面一321，锁钩部32的外侧具有阻挡面二322。内壳体1a上还连接有限位轴8，锁定件3上设有与限位轴8相匹配的限位孔33，限位轴8位于限位孔33内。
如图8和图9所示，本实施例中凸台51包括第一凸台511和第一凸台511，转动轴7上套设有一端能抵靠在内壳体1a上的扭簧11，扭簧11的另一端固连在转动轴7上。
本实施例的工作原理为，撞针2锁定时，阻挡面一321能够抵靠在抵靠面622上并使锁定部二62在撞针2的凹槽21内保持固定；撞针2需要解锁时，顶轴4的抵顶块41抵靠在第一凸台511上，此时顶轴4带动锁定件3沿着内壳体1a竖直向上移动，锁定件3位于中间件6的上方，中间件6处于在水平方向上自由转动状态，撞针2在高压气体的带动下朝向内壳体1a的前端运动，撞针2使得锁定部二62旋转并从凹槽21中完全分离，此时转动轴7的扭簧11处于压缩状态且扭簧11的一端抵靠在内壳体1a上；为了使锁定部二62与撞针2保持间隙，电机13带动转盘5旋转，抵顶块41与第一凸台511分离，复位弹簧10带动顶轴4和锁定片沿着内壳体1a竖直方向向下运动，此时阻挡面二322能够抵靠在止退面621上并使中间件6与撞针2之间始终保持有间隙；撞针2射钉完成后，抵顶块41再从转台上的第二凸台512经过，最终使得锁定部二62重新再撞针2内保持固定。作为可替代的方案，撞针2解锁时，锁定件3位于中间件6的下方，相应的驱动机构做相应的调整。
实施例三与实施例一的结构基本相同区别仅在于，内壳体1a上还设有包括顶出块的抵靠轴，顶出块和锁定件3连接，顶轴4上未设置抵顶块41，锁定件3的移动通过顶出块和凸台51来实现。本实施例中，抵靠轴用来使锁定件的竖直向上移动，顶轴4上的复位弹簧10使锁定件复位。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代，但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。
尽管本文较多地使用了，1、壳体；2、撞针；21、凹槽；3、锁定件；31、锁部；32、锁钩部；321、阻挡面一；322、阻挡面二；33、限位孔；4、顶轴；41、抵顶块；42、限位台；5、转盘；51、凸台；511、第一凸台；512、第二凸台；6、中间件；61、锁定部一； 611、止退面；612、抵靠面；62、锁定部二； 7、转动轴；8、限位轴；9、固定块；10、复位弹簧；11、扭簧；12、阻挡片；13、电机等术语，但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地描述和解释本发明的本质；把它们解释成任何一种附加的限制都是与本发明精神相违背的。
Claims (10)
- 一种打钉枪的撞针锁定结构，打钉枪包括内壳体（1）和能够相对内壳体（1）移动且用于打钉的撞针（2），所述内壳体（1）上还设有用于间接或直接锁住撞针（2）的锁定件（3），其特征在于，所述内壳体（1）上还设有驱动机构和在驱动机构带动下能沿内壳体（1）竖直方向运动的顶轴（4），所述顶轴（4）与锁定件（3）连接，撞针（2）解锁时，所述顶轴（4）和锁定件（3）能沿内壳体（1）竖直方向且远离撞针（2）移动。
- 根据权利要求1所述的打钉枪的撞针锁定结构，其特征在于，所述驱动机构包括设在所述内壳体（1）内的转盘（5），所述转盘（5）上设有至少一个凸台（51），所述顶轴（4）的一端与锁定件（3）连接，所述顶轴（4）的另一端设有能抵靠在凸台（51）上的抵顶块（41）。
- 根据权利要求2所述的打钉枪的撞针锁定结构，其特征在于，所述顶轴（4）上设有用于顶轴（4）复位的复位弹簧（10），复位弹簧（10）的一端抵靠或固定在顶轴（4）上，所述的复位弹簧（10）的另一端抵靠在内壳体（1）内。
- 根据权利要求1所述的打钉枪的撞针锁定结构，其特征在于，所述锁定件（3）直接锁住撞针（2），所述撞针（2）上还设置有凹槽（21），所述锁定件（3）包括锁部（31），撞针（2）锁定时，所述锁部（31）位于凹槽（21）内且直接锁住撞针（2）；撞针（2）解锁时，所述锁部（31）位于凹槽（21）的上方或下方。
- 根据权利要求4所述的打钉枪的撞针锁定结构，其特征在于，所述内壳体（1）上还设有靠近锁定件（3）的固定块（9），所述固定块（9）和锁定件（3）位于撞针（2）的同一侧，所述固定块（9）相比于锁定件（3）远离撞针（2），撞针（2）锁定时，所述固定块（9）、锁定件（3）和撞针（2）的部分结构处于同一水平面上。
- 根据权利要求5所述的打钉枪的撞针锁定结构，其特征在于，所述固定块（9）与锁定件（3）相接触的部分均为斜面且相匹配；或者所述固定块（9）或者锁定件（3）具有斜面。
- 根据权利要求1所述的打钉枪的撞针锁定结构，其特征在于，所述锁定件（3）间接锁住撞针（2），所述撞针（2）上设有凹槽（21），所述锁定件（3）和撞针（2）之间设有中间件（6），所述中间件（6）上分别具有锁定部一（61）和能够卡在撞针（2）上的锁定部二（62），所述锁定件（3）能够抵靠在锁定部一（61）上并阻挡中间件（6）相对内壳体（1）移动使锁定部二（62）与撞针（2）的凹槽（21）保持卡接，所述内壳体（1）上转动连接有转动轴（7），所述转动轴（7）上套设有一端能抵靠在内壳体（1）上的扭簧（11），所述扭簧（11）的另一端固连在转动轴（7）上，所述中间件（6）连接在转动轴（7）上，撞针（2）解锁时，所述锁定件（3）位于中间件（6）的上方或下方。
- 根据权利要求4或7所述的打钉枪的撞针锁定结构，其特征在于，所述内壳体（1）上还连接有限位轴（8），所述锁定件（3）上设有与限位轴（8）相匹配的限位孔（33），所述限位轴（8）位于限位孔（33）内。
- 根据权利要求1所述的打钉枪的撞针锁定结构，其特征在于，所述内壳体（1）内还设有与电机（7）输出轴连接的转盘（5），所述转盘（5）上设有凸台（51），所述顶轴（4）与锁定件（3）固定连接，所述顶轴（4）上设有一端能抵靠在内壳体（1）上的复位装置（10），所述复位装置（10）的另一端抵靠在顶轴（4）的限位台（42）上，所述锁定件（3）上还连接有抵靠轴，所述抵靠轴一端设有顶出块，所述顶出块能抵靠在凸台（51）上。
- 根据权利要求5或8所述的打钉枪的撞针锁定结构，其特征在于，所述凸台（51）和抵顶块（41）的周边为弧形，所述顶轴上设有限位台（42）或者固定孔（43），所述复位弹簧（10）抵靠在限位台（42）上或者固定在固定孔（43）中。
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| CN202210173205.4A CN114654429A (zh) | 2022-02-24 | 2022-02-24 | 一种打钉枪的撞针锁定结构 |
| CN202210173205.4 | 2022-02-24 |
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| CN114654429A (zh) * | 2022-02-24 | 2022-06-24 | 台州市钉霸电动工具有限公司 | 一种打钉枪的撞针锁定结构 |
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| CN108068059A (zh) * | 2016-11-09 | 2018-05-25 | 创科（澳门离岸商业服务）有限公司 | 气弹簧紧固件驱动器的卡塞释放和升降器机构 |
| CN109605285A (zh) * | 2019-01-31 | 2019-04-12 | 台州市钉霸电动工具有限公司 | 一种打钉枪 |
| US20190126453A1 (en) * | 2017-11-02 | 2019-05-02 | Basso Industry Corp. | Pneumatic nail gun and a nail-striking pin device thereof |
| CN111546292A (zh) * | 2020-05-21 | 2020-08-18 | 浙江荣鹏气动工具股份有限公司 | 一种电动钉枪撞针的锁定装置 |
| CN111791187A (zh) * | 2019-04-04 | 2020-10-20 | 南京德朔实业有限公司 | 钉枪 |
| CN212497592U (zh) * | 2020-03-18 | 2021-02-09 | 苏州宝时得电动工具有限公司 | 钉枪 |
| CN114654429A (zh) * | 2022-02-24 | 2022-06-24 | 台州市钉霸电动工具有限公司 | 一种打钉枪的撞针锁定结构 |
-
2022
- 2022-02-24 CN CN202210173205.4A patent/CN114654429A/zh active Pending
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- 2023-02-23 WO PCT/CN2023/077998 patent/WO2023160636A1/zh unknown
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108068059A (zh) * | 2016-11-09 | 2018-05-25 | 创科（澳门离岸商业服务）有限公司 | 气弹簧紧固件驱动器的卡塞释放和升降器机构 |
| US20190126453A1 (en) * | 2017-11-02 | 2019-05-02 | Basso Industry Corp. | Pneumatic nail gun and a nail-striking pin device thereof |
| CN109605285A (zh) * | 2019-01-31 | 2019-04-12 | 台州市钉霸电动工具有限公司 | 一种打钉枪 |
| CN111791187A (zh) * | 2019-04-04 | 2020-10-20 | 南京德朔实业有限公司 | 钉枪 |
| CN212497592U (zh) * | 2020-03-18 | 2021-02-09 | 苏州宝时得电动工具有限公司 | 钉枪 |
| CN111546292A (zh) * | 2020-05-21 | 2020-08-18 | 浙江荣鹏气动工具股份有限公司 | 一种电动钉枪撞针的锁定装置 |
| CN114654429A (zh) * | 2022-02-24 | 2022-06-24 | 台州市钉霸电动工具有限公司 | 一种打钉枪的撞针锁定结构 |
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