CN111546292B - A locking device for firing pin of electric nail gun - Google Patents
A locking device for firing pin of electric nail gun Download PDFInfo
- Publication number
- CN111546292B CN111546292B CN202010435247.1A CN202010435247A CN111546292B CN 111546292 B CN111546292 B CN 111546292B CN 202010435247 A CN202010435247 A CN 202010435247A CN 111546292 B CN111546292 B CN 111546292B
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- positioning
- firing pin
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- hole
- cylinder
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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
- B25C1/06—Hand-held nailing tools; Nail feeding devices operated by electric power
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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
- B25C7/00—Accessories for nailing or stapling tools, e.g. supports
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The utility model provides a locking device of electric nail rifle firing pin, includes gear box, connector, goes up cylinder, lower cylinder, cylinder seat, cylinder head, and connector left side lateral wall is equipped with the firing pin hole that link up mutually with last cylinder, is equipped with the piston in going up the cylinder, goes up piston left side lateral wall center and is equipped with the firing pin, and the firing pin left end passes the striking pin hole left, is equipped with down the piston in the lower cylinder, is equipped with eccentric axle seat in the gear box, and eccentric axle seat one side is equipped with the eccentric axle, and lower piston left side lateral wall center articulates there is the piston arm, and piston arm one end articulates on the eccentric axle, gear box upper surface left side is equipped with the fixed orifices, the locating hole corresponding with the fixed orifices position. The locking device of the electric nailing gun firing pin not only can automatically open the locating plate under the condition that the air pressure in the nailing gun is enough, and realize the effect of automatic nailing, but also can effectively avoid the condition that the locating plate has position deviation in the lifting process, and ensure that the locating plate can be quickly and accurately reset.
Description
Technical Field
The invention relates to a locking device, in particular to a locking device of a firing pin of an electric nailing gun.
Background
When the electric nail gun is not used, the firing pin assembly is locked through the locating piece, when the electric nail gun is used, the air pressure in the air cylinder is continuously increased, at the moment, a worker only needs to pull the locating piece to separate from the firing pin assembly through external force, and can push out the firing pin by utilizing the increased air pressure, so that nails can be driven through the firing pin, but the automatic nailing mode cannot be realized, the locating piece is still required to be opened by the worker after the air pressure is enough, the situation is very troublesome, the nailing efficiency is seriously influenced, the locating piece is not limited in the lifting process, the locating piece can only move in the longitudinal direction, so that the deviation of the angle of the locating piece is very easy to occur in the process of opening the locating piece, the locking efficiency of the firing pin assembly is influenced after the nailing of the electric nail gun is finished, the next nailing efficiency is influenced, the traditional electric nail gun is limited by the structure, the air pressure generated when the nailing machine is not changed, the nailing force is constant, the nailing force is also required to be limited in the actual use process or the nailing test, the depth is not required to be different, and the nailing force is not suitable for the nailing depth is required to be changed, and the nailing force is not to be changed in the same.
Disclosure of Invention
The invention aims to solve the technical problem of providing the locking device of the firing pin of the electric nailing gun, which not only can automatically open the positioning sheet under the condition that the air pressure in the nailing gun is enough to realize the effect of automatic nailing, but also can effectively avoid the condition that the positioning sheet has position deviation in the lifting process, ensure that the positioning sheet can be quickly and accurately reset, and can also adjust the air pressure in the nailing gun, so that nails can be driven out to different depths, and more nailing requirements are met.
The technical scheme adopted for solving the technical problems is as follows:
the invention discloses a locking device of a firing pin of an electric nailing gun, which comprises a gear box, a connector, an upper cylinder, a lower cylinder, a cylinder seat and a cylinder cover, wherein a firing pin hole communicated with the upper cylinder is arranged on the left side wall of the connector, an upper piston is arranged in the upper cylinder, a firing pin is arranged at the center of the left side wall of the upper piston, the left end of the firing pin penetrates through the firing pin hole leftwards, a lower piston is arranged in the lower cylinder, an eccentric shaft seat is arranged in the gear box, an eccentric shaft is arranged on one side of the eccentric shaft seat, a piston arm is hinged at the center of the left side wall of the lower piston, and one end of the piston arm is hinged on the eccentric shaft, and the locking device is characterized in that: the left side of the upper surface of the gear box is provided with a fixed hole and a positioning hole corresponding to the fixed hole; the positioning hole is internally provided with a positioning screw rod matched with the positioning screw rod, the lower end of the positioning screw rod penetrates downwards into the inner space of the gear box and is hinged with a rocker, the rocker is provided with a reset structure matched with the gear box, the front side of the right end of the rocker is provided with a pressing plate corresponding to the position of the eccentric shaft, the rear side of the middle part of the rocker is provided with an extension arm, the end part of the extension arm is provided with a plane guide plate, the plane guide plate is provided with an inclined plane guide plate inclined downwards left, the extension arm, the plane guide plate and the inclined plane guide plate are enclosed to form a C-shaped structure, the fixing hole is internally provided with a fixing pipe matched with the fixing arm, the lower end of the fixing pipe is pressed into the inner space of the gear box, the fixing tube is tightly matched and fixed with the fixing hole, a lifting rod is arranged in the fixing tube, the upper end of the lifting rod penetrates out of the fixing tube and is provided with a positioning plate, a plurality of uniformly distributed positioning teeth are arranged on the front side of the right part of the positioning plate, a plurality of positioning grooves matched with the positioning teeth are formed in the side, opposite to the positioning plate, of the firing pin, a guide structure matched with the positioning plate is arranged at the upper end of the positioning screw rod, the lower end of the lifting rod penetrates out of the fixing tube downwards and is provided with a pressure regulating plate, the pressure regulating plate is provided with a pressure regulating structure, the pressure regulating structure comprises a point contact corresponding to the position of the inclined plane guide plate, and a lifting spring sleeved outside the lifting rod is arranged between the pressure regulating plate and the lower end face of the fixing tube.
The pressure regulating structure comprises a first screw hole arranged at the right part of the pressure regulating plate, a point contact is in threaded connection with the first screw hole, a straight slot is arranged at the upper end of the point contact, the end part of the lower end of the point contact is spherical, and a fastening nut which is attached to the upper surface of the pressure regulating plate is in threaded connection with the outer side of the point contact.
The lower end of the point contact is provided with a spherical caulking groove, a ball matched with the spherical caulking groove is arranged in the spherical caulking groove, and one end of the ball protrudes out of the spherical caulking groove.
The rear side of the right part of the locating plate is provided with a guide surface which inclines forwards and rightwards, the guide structure comprises a limiting plate which is connected with the upper end of the locating screw in a threaded mode, the limiting plate is located above the firing pin, a movable gap is formed between the lower surface of the limiting plate and the upper surface of the locating plate, the movable gap is larger than the thickness of the locating plate, one side, opposite to the limiting plate, of the outer wall of the gear box is provided with a rear guide plate which is attached to the guide surface, one end of the limiting plate is provided with a front guide plate which is attached to the side wall of the front side of the locating tooth, the lower end face of the front guide plate is attached to the upper surface of the firing pin, the upper part of the locating screw is provided with a base plate which is located on the lower surface of the firing pin, and the upper surface of the base plate is provided with a guide sleeve which is attached to the side wall of the firing pin.
The reset structure comprises a second screw hole arranged in the middle of the rocker, a fixing bolt is screwed in the second screw hole, the head of the fixing bolt is arranged above the rocker, a buffer sheath is sleeved outside the head of the fixing bolt and made of rubber, the diameter of the buffer sheath is larger than the width of the rocker, and the fixing bolt is connected with the inner wall of the gear box through a tension spring.
The positioning teeth and the positioning grooves are in a shape of narrow bottom and wide top, the outer walls of the positioning teeth and the inner walls of the positioning grooves are inclined planes, and the outer walls of the positioning teeth are attached to the inner walls of the positioning grooves.
The left side of the connector is provided with a buffer hole communicated with the collision pin hole, the left end of the upper cylinder is connected with the hole position of the right end of the buffer hole, an annular buffer cushion is arranged in the buffer hole and made of rubber, the inner wall of the lower side of the buffer hole is provided with a rib groove, the lower surface of the buffer cushion is provided with a positioning rib matched with the rib groove, the positioning rib is embedded in the rib groove, and the side wall of the right side of the upper part of the buffer cushion is provided with a notch.
The upper end and the lower end of the lifting rod are respectively provided with a clamping head matched with the waist-shaped holes, and the upper end clamping head and the positioning sheet as well as the lower end clamping head and the pressure regulating plate are respectively fixed by screws.
The lower end of the positioning seat is provided with a fixing nut which is screwed and fixed with the lower end of the positioning screw.
The beneficial effects of the invention are as follows:
Compared with the prior art, the locking device of the electric nailing gun firing pin adopting the structure can drive the lower piston to move and drive the rocker to rotate simultaneously by utilizing the rotation of the eccentric shaft, when the lower piston moves, the pressurized gas acts on the upper piston and pushes the lower piston, when the rocker rotates, the positioning plate can drive the positioning teeth to separate from the positioning grooves on the firing pin, when the positioning teeth completely separate from the positioning grooves, the upper piston can drive the firing pin to collide out of the firing pin, the automatic nailing effect is realized, the artificial restriction of the positioning plate on the firing pin is not required to be removed, the trouble in the nailing process is reduced, the nailing efficiency is effectively improved, the guiding structure always guides the positioning plate in the process that the positioning plate drives the positioning teeth to separate from the positioning grooves on the firing pin, the positioning plate can only move up and down all the time, the angle of the positioning plate cannot be changed any, the situation that the positioning plate has position deviation in the lifting process can be effectively avoided, the positioning plate can be reset quickly and accurately can also be regulated by the pressure regulating structure to the air pressure inside the nailing gun, the upper piston can drive the firing pin to eject out of different air under the action, and the different nailing depth can not be regulated, and the nailing effect can be more suitable for the firing pin to realize different nailing depth.
Drawings
FIG. 1 is a schematic view of the structure of the locking device of the firing pin of the electric nailer of the present invention;
FIG. 2 is a partial schematic view of the locking mechanism of the firing pin of the electric stapling gun of the present invention;
FIG. 3 is a schematic view of the structure of the point contact with balls;
FIG. 4 is a cross-sectional view of the locking mechanism of the firing pin of the electric stapling gun of the present invention;
FIG. 5 is a top view of the locking mechanism of the firing pin of the electric stapling gun of the present invention;
FIG. 6 is a partial rear view of the locking mechanism of the firing pin of the electric stapling gun of the present invention;
fig. 7 is a schematic structural diagram of the lifting rod assembled with the locating plate and the pressure regulating plate.
Fig. 8 is a side cross-sectional view of the positioning teeth assembled with the positioning slots.
Detailed Description
The invention is described in further detail below with reference to the attached drawings and detailed description:
Referring to fig. 1 to 8, the invention provides a locking device for a striker of an electric nailing gun, which comprises a gear box 1, a connector 2, an upper cylinder 3, a lower cylinder 4, a cylinder seat 5 and a cylinder cover 6, wherein a striker hole 7 communicated with the upper cylinder 3 is arranged on the left side wall of the connector 2, the upper piston 8 is arranged in the upper cylinder 3, the striker 9 is arranged in the center of the left side wall of the upper piston 8, the left end of the striker 9 passes through the striker hole 7 leftwards, the lower piston 10 is arranged in the lower cylinder 4, a eccentric shaft seat 11 is arranged in the gear box 1, an eccentric shaft 12 is arranged on one side of the eccentric shaft seat 11, a piston arm 13 is hinged to the center of the left side wall of the lower piston 10, one end of the piston arm 13 is hinged to the eccentric shaft 12, a fixing hole 14 and a fixing hole 15 corresponding to the fixing hole 14 are arranged on the left side of the upper surface of the gear box 1, a rocker 17 is arranged in the fixing hole 16 which is matched with the fixing hole 16, the lower end of the fixing screw 16 is downwards penetrated into the inner space of the gear box 1 and hinged with the rocker 17, a reset structure matched with the rocker 17 is arranged on the rocker 17, a pressing plate 18 corresponding to the position of the eccentric shaft seat 12 is arranged on the front of the lower end of the rocker 17, a guide plate 20 is arranged on the lower end of the inclined plane 20, a guide plate 20 is formed by a slope 20 and a guide plate 20 is arranged on the lower end 20 of the guide plate 20, and a slope 20 is formed in the plane 20 of the guide plate 20 and is matched with the lower end 20, the fixing tube is tightly matched and fixed with the fixing hole, a lifting rod 23 is arranged in the fixing tube 22, the upper end of the lifting rod 23 penetrates through the fixing tube 22 and is provided with a positioning plate 24, a plurality of uniformly distributed positioning teeth 25 are arranged on the front side of the right part of the positioning plate 24, a plurality of positioning grooves 26 matched with the positioning teeth 25 are arranged on the side, opposite to the positioning plate 24, of the firing pin 9, a guiding structure matched with the positioning plate 24 is arranged on the upper end of the positioning screw 16, the lower end of the lifting rod 23 penetrates through the fixing tube 22 downwards and is provided with a pressure regulating plate 18, the pressure regulating plate 18 is provided with a pressure regulating structure, the pressure regulating structure comprises a point contact 27 corresponding to the position of the inclined plane guiding plate 21, and a lifting spring 28 sleeved outside the lifting rod 23 is arranged between the pressure regulating plate 18 and the lower end face of the fixing tube 22.
The pressure regulating structure comprises a first screw hole 29 arranged at the right part of the pressure regulating plate 18, a point contact 27 is screwed in the first screw hole 29, a character groove 30 is arranged at the upper end of the point contact 27, the lower end part of the point contact 27 is spherical, and a fastening nut 31 attached to the upper surface of the pressure regulating plate 18 is screwed outside the point contact 27.
The lower end of the point contact 27 is provided with a ball-shaped caulking groove 32, a ball 33 matched with the ball-shaped caulking groove 32 is arranged in the ball-shaped caulking groove 32, and one end of the ball 33 protrudes out of the ball-shaped caulking groove 32.
The rear side of the right part of the positioning plate 24 is provided with a guide surface 34 which inclines forwards and rightwards, the guide structure comprises a limiting plate 35 which is connected with the upper end of the positioning screw rod 16 in a screwed mode, the limiting plate 35 is located above the firing pin 9, a movable gap is formed between the lower surface of the limiting plate 35 and the upper surface of the positioning plate 24, the movable gap is larger than the thickness of the positioning plate 24, one side, opposite to the limiting plate 35, of the outer wall of the gear box 1 is provided with a rear guide plate 36 which is attached to the guide surface, one end of the limiting plate 35 is provided with a front guide plate 37 which is attached to the side wall of the front side of the positioning tooth 25, the lower end face of the front guide plate 37 is attached to the upper surface of the firing pin 9, the upper part of the positioning screw rod 16 is provided with a base plate 38 which is located on the lower surface of the firing pin 9, and the upper surface of the base plate 38 is provided with a guide sleeve 3801 which is attached to the side wall of the firing pin 9.
The reset structure comprises a second screw hole 39 arranged in the middle of the rocker 17, a fixing bolt 40 is screwed in the second screw hole 39, the head of the fixing bolt 40 is arranged above the rocker 17, a buffer jacket 41 is sleeved outside the head of the fixing bolt 40, the buffer jacket 41 is made of rubber, the diameter of the buffer jacket 41 is larger than the width of the rocker 17, and the fixing bolt 40 is connected with the inner wall of the gear box 1 through a tension spring 42.
The positioning teeth 25 and the positioning grooves 26 are in a shape with a narrow bottom and a wide top, the outer walls of the positioning teeth 25 and the inner walls of the positioning grooves 26 are inclined planes, and the outer walls of the positioning teeth 25 are attached to the inner walls of the positioning grooves 26.
The left side of the connector 2 is provided with a buffer hole 43 communicated with the firing pin hole 7, the left end of the upper cylinder 3 is connected to the hole position of the right end of the buffer hole 43, the buffer hole 43 is internally provided with a ring-shaped buffer pad 44, the buffer pad 44 is made of rubber, the inner wall of the lower side of the buffer hole 43 is provided with a rib slot 4301, the lower surface of the buffer pad 44 is provided with a positioning rib 4401 matched with the rib slot 4301, the positioning rib 4401 is embedded in the rib slot 4301, and the side wall of the right side of the upper part of the buffer pad 44 is provided with a notch 4402.
The positioning plate 24 and the pressure regulating plate 18 are respectively provided with a waist-shaped hole 45, the upper end and the lower end of the lifting rod 23 are respectively provided with a clamping head 46 matched with the waist-shaped holes 45, and the upper end clamping head 46 and the positioning plate 24 and the lower end clamping head 46 and the pressure regulating plate 18 are respectively fixed by screws 47.
The lower part of the rocker 17 is provided with a positioning seat 51 and is arranged in a hinge hole 1701 of the rocker 17, the lower end of the positioning screw 16 penetrates through the positioning seat 51, and the lower end of the positioning seat 51 is provided with a fixing nut 52 which is screwed and fixed with the lower end of the positioning screw 16.
The application method of the invention is as follows:
In the actual use process, a motor for driving the eccentric shaft seat 11 is arranged in the gear box 1, the connector is arranged on the right side above the gear box 1, the lower cylinder 4 is arranged right below the upper cylinder 3, the lower cylinder 4 is arranged on the right side of the gear box 1, the right end of the upper cylinder 3 and the right end of the lower cylinder 4 are connected through the cylinder seat 5, the cylinder cover 6 covers the outside of the cylinder seat 5, an upper vent hole 48 communicated with the upper cylinder 3 and a lower vent hole 49 communicated with the lower cylinder 4 are arranged on the cylinder seat 5, a vent chamber 50 is arranged on one side wall of the cylinder cover 6 opposite to the cylinder seat 5, the upper vent hole 48 is communicated with the lower vent hole 49 through the vent chamber 50, when the motor drives the eccentric shaft seat 11, the eccentric shaft 12 rotates along with the eccentric shaft 12 and the piston arm 13 are hinged, at the moment, the lower piston 10 moves rightwards along the track of the lower cylinder 4 through the piston arm 13, gas in the lower cylinder 4 is extruded into the vent chamber 50 through the lower vent hole 49, the lower piston 10 moves leftwards along with the track of the lower cylinder 4, the upper vent hole 48 is continuously moved leftwards, the upper vent hole 48 is pushed by the upper vent hole 8, and the upper vent hole 8 can not be positioned right, and the upper piston 8 can not be positioned, and the upper piston 8 can be punched, when the upper piston 8 is moved, and the upper piston 8 is positioned, and the upper piston 8 can not be moved, and the upper, due to the upper vent hole 8 is moved, and the upper vent hole is positioned, the upper piston 8, the upper piston is left, and the upper piston 8 can be moved, and the upper piston, the upper piston 8, and the upper piston and the upper piston 8.
When the eccentric shaft 12 rotates to a certain angle, the eccentric shaft is arranged on the pressing plate 18 at the front side of the right end of the rocker 17, so that the rocker 17 is pushed, at the moment, the rocker 17 rotates around the positioning screw 16, the tension spring 42 is pulled and generates elastic force, the inclined guide plate 21 gradually moves to the position right below the point contact 27 along with the rotation of the rocker 17, the end part of the lower end of the final point contact 27 is attached to the upper surface of the inclined guide plate 21, then the inclined guide plate 21 continuously rotates, the extending arm 19, the plane guide plate 20 and the inclined guide plate 21 are surrounded to form a C-shaped structure along with the movement of the inclined guide plate 21, the point contact 27 is continuously pushed upwards by the inclined upper surface of the inclined guide plate 21, the point contact 27 is fixed on the pressure regulating plate 18, the pressure regulating plate 18 is fixed on the lower end of the lifting rod 23, the point contact 27 is driven to move upwards through the pressure regulating plate 18 when the lifting rod 23 moves upwards, the lifting spring 28 is compressed and generates elastic force in the process when the lifting rod 23 moves upwards, the positioning plate 24 arranged at the upper end of the lifting rod 23 moves upwards along with the lifting guide plate 24, the positioning plate 24 gradually moves out of the positioning plate 25 from the positioning plate 25 when the positioning plate 25 and is separated from the positioning plate 25 to the positioning plate 25 completely from the positioning plate 25.
Since the guide surface 34 at the rear side of the right part of the positioning sheet 24 is inclined to the front right, when the rear guide plate 36 is attached to the guide surface 34, the rear guide plate 36 can limit and guide the rear and side directions of the positioning sheet 24, when the front guide plate 37 is attached to the front side wall of the positioning teeth 25, the front guide plate 37 can limit and guide the front of the positioning sheet 24, under the cooperation of the front guide plate 37 and the rear guide plate 36, the positioning sheet 24 can only move up and down, no deviation of the angle of the positioning sheet 24 can occur, thereby effectively avoiding the situation that the positioning sheet 24 is difficult to reset quickly or even cannot reset due to the angle deviation in the upward movement process, when the positioning sheet 24 moves up to the upper side of the firing pin 9, the positioning teeth 25 of the positioning sheet 24 can be separated from the positioning groove 26 of the firing pin 9, because a movable gap is formed between the lower surface of the limiting plate 35 and the upper surface of the positioning sheet 24, the movable clearance is larger than the thickness of the positioning sheet 24, so the positioning sheet 24 can drive the positioning teeth 25 to smoothly separate from the positioning grooves 26, the upward movement of the positioning sheet 24 is not limited by the limiting plate 35, after the limitation of the positioning teeth 25 is lost, the firing pin 9 can freely move, the upper piston 8 rapidly drives the firing pin 9 to move leftwards under the action of high-pressure gas applied to the upper piston 8, the firing pin 9 drives nails out of the gun muzzle to finish the nailing action, the front guide plate 37 cooperates with the backing plate 38 to limit the moving track of the firing pin 9 on the same plane, the firing pin is prevented from bending upwards or downwards, the upper surface of the backing plate 38 is provided with the guide sleeve 3801 attached to the side wall of the firing pin 9, the existence of the guide sleeve 3801 can limit the firing pin 9 when the firing pin 9 bends sideways, the suspended part of the firing pin 9 is effectively prevented from being bent radially due to stress, ensuring the stability of the striker 9 in use.
When the nailing is completed once, the motor drives the eccentric shaft seat 11 to drive the eccentric shaft 12 to continue to rotate, so that the eccentric shaft 12 is reset, at this time, the eccentric shaft 12 pulls the lower piston 10 to move left and reset through the piston arm 13, gas in the upper cylinder 3 is pumped into the lower cylinder 4 sequentially through the upper vent hole 48, the ventilation chamber 50 and the lower vent hole 49, the air pressure of the upper cylinder 3 changes, the upper piston 8 moves right and resets along with the upper piston 8, when the upper piston 8 moves right and resets, the upper piston 8 drives the firing pin 9 to move right and resets, at the same time, along with the rotation and reset of the eccentric shaft 12, the eccentric shaft 12 is not pressed on the pressing plate, after the pressure applied on the pressing plate 18 is lost, the rocking rod 17 is reset under the action of the elastic force of the tension spring 42, after the rocking rod 17 resets, the point contact 27 gradually breaks away from the inclined upper surface of the inclined surface guide plate 21, in the process, the pressure regulating plate 18 gradually moves down and resets through the elastic force of the lifting spring 28, when the point contact 27 breaks away from the inclined surface guide plate 21 completely, the point contact 27 completely, the upper piston 18 drives the point contact 27 to reset completely, and simultaneously, when the positioning plate 24 breaks away from the firing pin 9, the lifting spring 28 resets, the pressing plate 24 moves down, the upper pressure generated by the lifting plate 24 and acts on the striker plate 24, the positioning plate 24 is positioned down correspondingly to the firing pin 9, and the positioning plate 24 is positioned on the positioning plate 9, and the positioning plate 9 is positioned on the positioning groove, and the firing pin 9 is positioned on the positioning groove, and the positioning plate 9, and the positioning plate is positioned on the positioning plate 9.
When the rocker 17 is reset, the elastic force of the tension spring 42 acts on the rocker 17 instantly, so that the rocker 17 inevitably collides on the inner wall of the gear box 1, and the buffer jacket 41 can replace the rocker 17 to collide with the inner wall of the gear box 1 because the diameter of the buffer jacket 41 is larger than the width of the rocker 17, the buffer jacket 41 is made of rubber, and the collision force can be effectively buffered through the elastic performance of the rubber, so that the damage of the rocker 17 and the inner wall of the gear box 1 is effectively avoided.
When the electric nailing gun is required to be regulated, the pressure regulating operation can be completed only by changing the height position of the point contact 27 of the pressure regulating structure, when the height position of the point contact 27 is required to be changed, the upper end of the point contact 27 is only required to be held to rotate, the point contact 27 can move up and down along the thread track of the first screw hole 29, after the height position of the point contact 27 is regulated, a straight screwdriver can be inserted into the straight slot 30, thereby fixing the point contact 27, then the external spanner is utilized to rotate the fastening nut 31, thereby the point contact is fastened on the pressing plate 18 through the fastening nut 31, the stability of the point contact 27 after the height position regulation is completed is effectively ensured, the loosening condition does not occur, when the height position of the point contact 27 is changed, the inclined guide plate 21 can be changed along with the moment, the positioning tooth 25 of the positioning piece 24 can be separated from the positioning groove 26 on the firing pin 9 earlier or later, meanwhile, the eccentric shaft 12 can rotate by a smaller angle to be contacted with the pressing plate 17 or the eccentric shaft can be rotated by a larger angle to be contacted with the pressing plate 18 or the pressing plate 10 can be rotated by a larger angle to be different from the moment, the same, the pneumatic force can be different from the pressing plate is required to be pressed by the pressing piston, and the pressing piston is not changed along with the different distances of the pressing plate 10, and the pressing force is different in the pressing force can be changed, and the pressing force can be different in the pressing the depth can be changed.
The end part of the lower end of the point contact 27 is spherical, friction force between the point contact 27 and the inclined plane guide plate 21 and between the point contact 27 and the plane guide plate 20 can be effectively reduced, the point contact 27 can slide smoothly along the upper surface of the inclined plane guide plate 21 and the upper surface of the plane guide plate 20, a spherical caulking groove 32 is formed in the end part of the lower end of the point contact 27, a ball 33 matched with the ball caulking groove is arranged in the spherical caulking groove 32, one end of the ball 33 protrudes out of the spherical caulking groove 32, friction force between the point contact 27 and the inclined plane guide plate 21 and between the ball 33 and the plane guide plate 20 can be further reduced, when the point contact 27 slides, the ball 33 rolls by means of contact with the inclined plane guide plate 21 and the plane guide plate 20, and the rolling ball 33 can ensure smoothness of the point contact 27 during sliding to the greatest extent.
In summary, the invention can utilize the rotation of the eccentric shaft 12 to drive the lower piston 10 to move and drive the rocker 17 to rotate, when the lower piston 10 moves, the pressurized gas acts on the upper piston 8 and pushes the lower piston, when the rocker 17 rotates, the positioning plate 24 can drive the positioning teeth 25 to separate from the positioning grooves 26 on the firing pins 9, when the positioning teeth 25 completely separate from the positioning grooves 26, the upper piston 8 can drive the firing pins 9 to collide with nails, so as to realize an automatic nailing effect, the limitation of the positioning plate 24 on the firing pins 9 is not needed to be relieved by people, the trouble in the nailing process is reduced, the nailing efficiency is effectively improved, in addition, the guiding structure always guides the positioning plate in the process that the positioning plate 25 is separated from the positioning grooves 26 on the firing pins 9, the positioning plate 24 can only move up and down all the time, the angle of the positioning plate 24 can not change any, the situation that the positioning plate 24 has position deviation in the lifting process can be effectively avoided, the rapid and accurate reset of the positioning plate 24 can also realize the automatic nailing effect, the automatic nailing effect can be realized by adjusting the pressure inside the nail, the pressing structure can not be adjusted, the nail can be applied to the firing pins 9 with different depths, and the different nailing effect can not be realized, and the nailing depth can be adjusted, and the different nailing effect can be realized.
The positioning teeth 25 and the positioning grooves 26 are in a shape of narrow bottom and wide top, the outer walls of the positioning teeth 25 and the inner walls of the positioning grooves 26 are inclined planes, the outer walls of the positioning teeth 25 are attached to the inner walls of the positioning grooves 26, and the friction force between the vertical planes is far greater than that between the inclined planes, so that the positioning teeth 25 can be separated from the positioning teeth 25 more smoothly under the matching of the inclined planes of the positioning teeth 25 and the inclined planes of the positioning grooves 26, and the phenomenon that the positioning teeth 25 are jammed when the limit of the firing pin 9 is relieved is effectively avoided.
The left side of the connector 2 is provided with a buffer hole 43 communicated with the firing pin hole 7, the left end of the upper cylinder 3 is connected to the hole position of the right end of the buffer hole 43, an annular buffer cushion 44 is arranged in the buffer hole 43, the buffer cushion 44 is made of rubber, when the upper piston 8 moves with the firing pin 9 under the action of maximum air pressure, the upper piston 8 collides with the buffer cushion 44, the buffer cushion 44 effectively buffers the upper piston 8, the condition that the upper piston 8 directly collides on the inner wall of the connector 2 to cause damage is effectively avoided, a rib slot 4301 is arranged on the inner wall of the lower side of the buffer hole 43, a positioning rib 4401 matched with the rib slot 4301 is arranged on the lower surface of the buffer cushion 44, the positioning rib 4401 is embedded in the rib slot 4301, a notch 4402 is arranged on the right side wall of the upper part of the buffer cushion 44, and the right side wall of the upper part of the buffer cushion 44 is contacted with the upper piston 8 due to the existence of the notch 4402.
The locating plate 24 and the pressure regulating plate 18 are provided with waist-shaped holes 45, the upper end and the lower end of the lifting rod 23 are provided with clamping heads 46 matched with the waist-shaped holes 45, the upper end clamping heads 46 and the locating plate 24 and the lower end clamping heads 46 and the pressure regulating plate 18 are fixed through screws 47, and the connection mode is convenient for the disassembly between the locating plate 24, the pressure regulating plate 18 and the lifting rod 23, and is beneficial to maintenance and replacement.
Claims (6)
1. The locking device of the firing pin of the electric nailing gun comprises a gear box, a connector, an upper cylinder, a lower cylinder, a cylinder seat and a cylinder cover, wherein a firing pin hole communicated with the upper cylinder is formed in the left side wall of the connector, an upper piston is arranged in the upper cylinder, a firing pin is arranged in the center of the left side wall of the upper piston, the left end of the firing pin penetrates through the firing pin hole leftwards, the lower piston is arranged in the lower cylinder, a eccentric shaft seat is arranged in the gear box, an eccentric shaft is arranged on one side of the eccentric shaft seat, a piston arm is hinged to the center of the left side wall of the lower piston, one end of the piston arm is hinged to the eccentric shaft The plane guide plate and the inclined plane guide plate are enclosed to form a C-shaped structure; the fixed hole is internally provided with a fixed pipe matched with the fixed pipe, the lower end of the fixed pipe is pressed into the internal space of the gear box, the fixed pipe is tightly matched with the fixed hole and fixed, the fixed pipe is internally provided with a lifting rod, the upper end of the lifting rod penetrates out of the fixed pipe and is provided with a positioning sheet, the front side of the right part of the positioning sheet is provided with a plurality of uniformly distributed positioning teeth, one side of the firing pin opposite to the positioning sheet is provided with a plurality of positioning grooves matched with the positioning teeth, the upper end of the positioning screw is provided with a guiding structure matched with the positioning sheet, the lower end of the lifting rod penetrates out of the fixed pipe downwards and is provided with a pressure regulating plate, the pressure regulating plate is provided with a pressure regulating structure, the pressure regulating structure comprises a point contact corresponding to the position of an inclined guiding plate, a lifting spring sleeved outside the lifting rod is arranged between the pressure regulating plate and the lower end surface of the fixed pipe, the pressure regulating structure comprises a first screw hole arranged at the right part of the pressure regulating plate, the point contact is screwed into the first screw hole, the upper end of the point contact is provided with a word groove, the end of the point contact is spherical, the end of the point contact is connected with the end of the positioning sheet, the point contact is provided with a guiding structure matched with the positioning sheet, the upper surface of the positioning screw is provided with a large-side of the positioning plate is in a clearance between the front side of the positioning plate and the upper surface of the positioning plate, the positioning plate is in a clearance joint between the front surface of the positioning plate and the upper surface is provided with a large-limit stop nut, the reset structure comprises a second screw hole arranged in the middle of the rocker, a fixing bolt is screwed in the second screw hole, the head of the fixing bolt is arranged above the rocker, a buffer sheath is sleeved outside the head of the fixing bolt, the buffer sheath is made of rubber material, the diameter of the buffer sheath is larger than the width of the rocker, and the fixing bolt is connected with the inner wall of the gear box through a tension spring.
2. The locking device of the electric nailing gun firing pin according to claim 1, wherein the lower end part of the point contact is provided with a spherical caulking groove, a ball matched with the spherical caulking groove is arranged in the spherical caulking groove, and one end of the ball protrudes out of the spherical caulking groove.
3. The device for locking a striker of an electric nailing gun according to claim 1, wherein the positioning teeth and the positioning grooves are both in a shape of being narrow at the bottom and wide at the top, the outer walls of the positioning teeth and the inner walls of the positioning grooves are inclined surfaces, and the outer walls of the positioning teeth are attached to the inner walls of the positioning grooves.
4. The locking device of the electric nailing gun firing pin is characterized in that a buffer hole communicated with a firing pin hole is formed in the left side of the connector, the left end of an upper cylinder is connected to the right end hole position of the buffer hole, an annular buffer cushion is arranged in the buffer hole and made of rubber, a rib groove is formed in the inner wall of the lower side of the buffer hole, positioning ribs matched with the rib groove are arranged on the lower surface of the buffer cushion, the positioning ribs are embedded in the rib groove, and a notch is formed in the side wall of the right side of the upper portion of the buffer cushion.
5. The device for locking the firing pin of the electric nailing gun according to claim 1, wherein the positioning plate and the pressure regulating plate are respectively provided with a waist-shaped hole, the upper end and the lower end of the lifting rod are respectively provided with a clamping head matched with the waist-shaped holes, and the upper clamping head and the positioning plate and the lower clamping head and the pressure regulating plate are respectively fixed by screws.
6. The device for locking the firing pin of the electric nailing gun according to claim 1, wherein a positioning seat is arranged below the rocker and is arranged in the rocker hinge hole, the lower end of the positioning screw rod penetrates through the positioning seat, and a fixing nut is arranged at the lower end of the positioning seat and is screwed and fixed with the lower end of the positioning screw rod.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010435247.1A CN111546292B (en) | 2020-05-21 | 2020-05-21 | A locking device for firing pin of electric nail gun |
| PCT/CN2020/096000 WO2021232519A1 (en) | 2020-05-21 | 2020-07-08 | Locking device for electric nail gun striker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010435247.1A CN111546292B (en) | 2020-05-21 | 2020-05-21 | A locking device for firing pin of electric nail gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111546292A CN111546292A (en) | 2020-08-18 |
| CN111546292B true CN111546292B (en) | 2025-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010435247.1A Active CN111546292B (en) | 2020-05-21 | 2020-05-21 | A locking device for firing pin of electric nail gun |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111546292B (en) |
| WO (1) | WO2021232519A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111546292B (en) * | 2020-05-21 | 2025-03-14 | 浙江荣鹏气动工具股份有限公司 | A locking device for firing pin of electric nail gun |
| CN113580074B (en) * | 2021-08-23 | 2024-10-22 | 浙江荣鹏气动工具股份有限公司 | A locking device capable of adjusting the nailing force of an electric nail gun |
| CN114654429B (en) * | 2022-02-24 | 2026-01-27 | 台州市钉霸电动工具有限公司 | Firing pin locking structure of nailing gun |
| CN114536278A (en) * | 2022-03-19 | 2022-05-27 | 浙江荣鹏气动工具股份有限公司 | Locking mechanism of nail gun firing pin |
| CN117140437A (en) * | 2023-10-27 | 2023-12-01 | 浙江荣鹏气动工具股份有限公司 | A locking and unlocking structure for a locking block on a nail gun |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212123140U (en) * | 2020-05-21 | 2020-12-11 | 浙江荣鹏气动工具股份有限公司 | Locking device of striker of electric nail gun |
| WO2021232519A1 (en) * | 2020-05-21 | 2021-11-25 | 浙江荣鹏气动工具股份有限公司 | Locking device for electric nail gun striker |
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| JP3243927B2 (en) * | 1994-04-15 | 2002-01-07 | 日立工機株式会社 | Driving depth adjusting device for driving machine |
| JPH09155808A (en) * | 1995-12-06 | 1997-06-17 | Max Co Ltd | Nail feeding device for nailing machine |
| JP4085220B2 (en) * | 1999-07-14 | 2008-05-14 | マックス株式会社 | Piston catch device of pneumatic nailer |
| JP4505986B2 (en) * | 2000-12-11 | 2010-07-21 | マックス株式会社 | Fastening machine tightening depth adjustment device |
| JP4869872B2 (en) * | 2006-11-01 | 2012-02-08 | 株式会社マキタ | Driving depth adjusting device for driving machine |
| TW201116376A (en) * | 2009-11-09 | 2011-05-16 | Ming-jun YANG | Striking force adjustment device of nail gun |
| CN201808035U (en) * | 2010-09-15 | 2011-04-27 | 苏州卓识商务咨询有限公司 | Electric nail hammer |
| WO2015037299A1 (en) * | 2013-09-10 | 2015-03-19 | 株式会社マキタ | Driving tool |
| CN206598252U (en) * | 2017-03-04 | 2017-10-31 | 广东明晖气动科技有限公司 | Automatic nail feeding clasp rifle |
| CN207915400U (en) * | 2018-01-10 | 2018-09-28 | 南京腾亚精工科技有限公司 | Nailing depth adjusting mechanism of nail gun |
| EP3648932A4 (en) * | 2018-06-11 | 2021-08-04 | Milwaukee Electric Tool Corporation | GAS SPRING DRIVER |
| CN209648626U (en) * | 2018-12-17 | 2019-11-19 | 浙江普莱得电器有限公司 | A kind of adjustable nail gun of nailing depth |
| CN209648624U (en) * | 2018-12-17 | 2019-11-19 | 浙江普莱得电器有限公司 | An air nail gun with good nailing effect |
| CN109571373B (en) * | 2019-01-30 | 2023-08-18 | 浙江荣鹏气动工具股份有限公司 | Locking device on firing pin of double-cylinder electric nailing gun |
| CN209970636U (en) * | 2019-05-16 | 2020-01-21 | 浙江荣鹏气动工具股份有限公司 | A safety frame adjusting device for a nail gun |
| CN210550947U (en) * | 2019-07-05 | 2020-05-19 | 朱益民 | Cylinder and nailing tool |
| CN111136617B (en) * | 2020-01-17 | 2024-12-31 | 浙江东亚工具有限公司 | Air nail gun with adjustable nailing depth |
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2020
- 2020-05-21 CN CN202010435247.1A patent/CN111546292B/en active Active
- 2020-07-08 WO PCT/CN2020/096000 patent/WO2021232519A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212123140U (en) * | 2020-05-21 | 2020-12-11 | 浙江荣鹏气动工具股份有限公司 | Locking device of striker of electric nail gun |
| WO2021232519A1 (en) * | 2020-05-21 | 2021-11-25 | 浙江荣鹏气动工具股份有限公司 | Locking device for electric nail gun striker |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021232519A1 (en) | 2021-11-25 |
| CN111546292A (en) | 2020-08-18 |
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