CN111546292A - Locking device of striker of electric nail gun - Google Patents
Locking device of striker of electric nail gun Download PDFInfo
- Publication number
- CN111546292A CN111546292A CN202010435247.1A CN202010435247A CN111546292A CN 111546292 A CN111546292 A CN 111546292A CN 202010435247 A CN202010435247 A CN 202010435247A CN 111546292 A CN111546292 A CN 111546292A
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- positioning
- plate
- hole
- firing pin
- striker
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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 locking device of the firing pin of the electric nail gun comprises a gear box, a connector, an upper air cylinder, a lower air cylinder, an air cylinder seat and an air cylinder cover, wherein a firing pin hole communicated with the upper air cylinder is formed in the side wall of the left side of the connector, an upper piston is arranged in the upper air cylinder, the center of the side wall of the left side of the upper piston is provided with the firing pin, the left end of the firing pin penetrates through the firing pin hole leftwards, a lower piston is arranged in the lower air 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 to the center of the side wall of the left side of. The locking device of the striker of the electric nail gun not only can automatically open the positioning sheet under the condition that the air pressure in the nail 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, and ensure that the positioning sheet 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 nail gun.
Background
When the electric nailing gun is not used, the firing pin assembly is locked through the positioning sheet, when the electric nailing gun is used, the air pressure in the air cylinder is continuously increased, at the moment, a worker only needs to pull the positioning sheet to separate the positioning sheet from the firing pin assembly through external force, the firing pin can be pushed out by utilizing the increased air pressure, so that a nail is driven out through the firing pin, but the automatic nailing mode cannot realize automatic nailing, the positioning sheet needs to be actively opened by the worker after the air pressure is enough every time, the operation is very troublesome, the nailing efficiency is seriously influenced, the positioning sheet can only move in the longitudinal direction without a limiting structure in the lifting process, so that the angle of the positioning sheet is extremely easy to deviate in the process of opening the positioning sheet, the positioning sheet cannot be rapidly reset, the locking efficiency of a striking pin assembly after the electric nailing gun is finished is influenced, the next nailing efficiency is influenced, and the traditional electric nailing gun is limited by the structure of the traditional electric nailing gun, the atmospheric pressure when unable self nailing that changes, consequently the atmospheric pressure that produces when the nailing is invariable, leads to the nailing dynamics also invariable, nevertheless in the in-service use process or nailing test procedure, then can need the nail to beat different depths, and in the unchangeable condition of nailing dynamics, can only beat the same nailing degree of depth, can't adapt to other nailing requirements, has serious limitation.
Disclosure of Invention
The invention aims to solve the technical problem in the prior art and provides a locking device for a firing pin of an electric nail gun, which not only can automatically open a positioning sheet under the condition that the air pressure in the nail 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 adjust the air pressure in the nail gun, so that nails can be driven to different depths after being driven, and the locking device can meet more nailing requirements.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention discloses a locking device of a firing pin of an electric nail gun, which comprises a gear box, a connector, an upper air cylinder, a lower air cylinder, an air cylinder seat and an air cylinder cover, wherein the left side wall of the connector is provided with a firing pin hole communicated with the upper air cylinder, an upper piston is arranged in the upper air cylinder, the center of the left side wall of the upper piston is provided with the firing pin, the left end of the firing pin penetrates through the firing pin hole leftwards, the lower air cylinder is provided with the lower piston, an eccentric shaft seat is arranged in the gear box, one side of the eccentric shaft seat is provided with an eccentric shaft, the center of the left side wall of: a fixing hole and a positioning hole corresponding to the fixing hole are formed in the left side of the upper surface of the gear box; a positioning screw matched with the positioning hole is arranged in the positioning hole; the lower end of the positioning screw rod penetrates into the internal space of the gear box downwards and is hinged with a rocker; a reset structure matched with the gear box is arranged on the rocker; a pressing plate corresponding to the position of the eccentric shaft is arranged on the front side of the right end of the rocker; an extension arm is arranged at the rear side of the middle part of the rocker; 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 which inclines to the left lower side, and the extension arm, the plane guide plate and the inclined plane guide plate are enclosed to form a C-shaped structure; a fixing pipe matched with the fixing hole is arranged in the fixing hole, the lower end of the fixing pipe is pressed into the internal space of the gear box, and the fixing pipe is tightly matched and fixed with the fixing hole; a lifting rod is arranged in the fixed pipe; the upper end of the lifting rod penetrates out of the fixing pipe and is provided with a positioning sheet; a plurality of positioning teeth which are uniformly distributed are arranged on the front side of the right part of the positioning sheet; a plurality of positioning grooves matched with the positioning teeth are formed in one side of the firing pin opposite to the positioning sheet; the upper end of the positioning screw is provided with a guide 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 the inclined 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 fixed pipe.
The pressure regulating structure comprises a first screw hole arranged at the right part of the pressure regulating plate, and the point contact is screwed in the first screw hole; the upper end of the point contact is provided with a straight groove, and the lower end part of the point contact is spherical; the outer screw of point contact has a fastening nut who laminates mutually with pressure regulating plate upper surface.
The lower end part of the point contact is provided with a spherical caulking groove; the ball caulking groove is internally provided with a ball matched with the ball caulking groove, and one end of the ball is protruded out of the ball caulking groove.
The rear side of the right part of the positioning sheet is provided with a guide surface which inclines forwards and rightwards; the guide structure comprises a limit plate in threaded connection with the upper end of the positioning screw rod, and the limit plate is positioned above the firing pin; a movable gap is formed between the lower surface of the limiting plate and the upper surface of the positioning plate, and the movable gap is larger than the thickness of the positioning plate; a rear guide plate attached to the guide surface is arranged on one side, opposite to the limiting plate, of the outer wall of the gear box, and a front guide plate attached to the side wall of the front side of the positioning tooth is arranged at one end of the limiting plate; the lower end surface of the front guide plate is attached to the upper surface of the firing pin; the upper part of the positioning screw is provided with a backing plate positioned on the lower surface of the firing pin, and the upper surface of the backing plate is provided with a guide sleeve attached to the side wall of the firing pin.
The reset structure comprises a second screw hole arranged in the middle of the rocker, and a fixing bolt is screwed in the second screw hole; the head of the fixing bolt is positioned above the rocker, a buffer sheath is sleeved outside the head of the fixing bolt, and the buffer sheath is made of rubber; the diameter of the buffer sheath is larger than the width of the rocker; 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 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 planes, and the outer walls of the positioning teeth and the inner walls of the positioning grooves are attached.
The left side of the connector is provided with a buffer hole communicated with the striker hole, and the left end of the upper cylinder is connected to the orifice position at the right end of the buffer hole; an annular buffer cushion is arranged in the buffer hole, and the buffer cushion is made of rubber; a rib groove is formed in the inner wall of the lower side of the buffer hole; the lower surface of the buffer cushion is provided with positioning ribs matched with the rib grooves, and the positioning ribs are embedded in the rib grooves; a notch is formed in the side wall of the right side of the upper portion of the buffering cushion.
The positioning plate and the pressure regulating plate are provided with waist-shaped holes; the upper end and the lower end of the lifting rod are provided with clamping heads 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 fixed through screws.
A positioning seat is arranged below the rocker and is arranged in the rocker hinge hole, and the lower end of the positioning screw 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.
The invention has the beneficial effects that:
compared with the prior art, the locking device of the firing pin of the electric nail gun adopting the structure of the invention can utilize the rotation of the eccentric shaft to simultaneously drive the lower piston to move and drive the rocker to rotate, when the lower piston moves, the pressurized gas acts on the upper piston and pushes the upper piston, when the rocker rotates, the positioning piece 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 eject the nail, thereby realizing the automatic nailing effect, the limit of the positioning piece on the firing pin is not required to be manually removed, the trouble in the nailing process is reduced, the nailing efficiency is effectively improved, and in the process that the positioning piece drives the positioning teeth to separate from the positioning grooves on the firing pin, the guide structure always guides the positioning piece, so that the positioning piece can only move up and down all the time, and the angle of the positioning piece can not be changed at all, can effectively avoid the spacer the condition of positional deviation to appear at the lift in-process, guarantee that the spacer can be fast accurate reset, can also adjust the inside atmospheric pressure of nail rifle through the pressure regulating structure, make the upper piston can drive the firing pin under different atmospheric pressure effects and beat the nail, when the dynamics that the firing pin was applyed on the nail is different, just can beat different depths, realize nailing degree of depth adjustable effect to can adapt to more nailing requirements.
Drawings
FIG. 1 is a schematic view of the locking arrangement for the striker of the electric nail gun of the present invention;
FIG. 2 is a schematic view of a portion of the locking arrangement for the striker of the electric nailer of the present invention;
FIG. 3 is a schematic view of the point contact with balls;
FIG. 4 is a cross-sectional view of the locking arrangement for the striker of the electric nailer of the present invention;
FIG. 5 is a top view of the locking arrangement for the striker of the electric nailer of the present invention;
FIG. 6 is a rear elevational view of a portion of the locking arrangement for the striker of the electric nailer of the present invention;
fig. 7 is a schematic structural view of the lifting rod when being assembled with the positioning piece and the pressure adjusting plate.
Fig. 8 is a side sectional view of the positioning teeth assembled with the positioning grooves.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
referring to fig. 1 to 8, the invention provides a locking device for a striker of an electric nail gun, comprising a gear box 1, a connector 2, an upper cylinder 3, a lower cylinder 4, a cylinder block 5 and a cylinder cover 6, wherein a striker hole 7 communicated with the upper cylinder 3 is formed in the left side wall of the connector 2, an upper piston 8 is arranged in the upper cylinder 3, a striker 9 is arranged in the center of the left side wall of the upper piston 8, the left end of the striker 9 penetrates through the striker hole 7 leftwards, a lower piston 10 is arranged in the lower cylinder 4, an 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 in the center of the left side wall of the lower piston 10, one end of the piston arm 13 is hinged on the eccentric shaft 12, and a fixing hole 14 and a positioning; a positioning screw 16 matched with the positioning hole 15 is arranged in the positioning hole; the lower end of the positioning screw rod 16 downwards penetrates into the internal space of the gear box 1 and is hinged with a rocker 17; a reset structure matched with the gear box 1 is arranged on the rocker 17; a pressure plate 18 corresponding to the eccentric shaft 12 is arranged at the front side of the right end of the rocker 17; an extension arm 19 is arranged at the rear side of the middle part of the rocker 17; a plane guide plate 20 is arranged at the end part of the extension arm 19; the plane guide plate 20 is provided with an inclined plane guide plate 21 which inclines to the lower left, and the extension arm 19, the plane guide plate 20 and the inclined plane guide plate 21 are enclosed to form a C-shaped structure; a fixing pipe 22 matched with the fixing hole 14 is arranged in the fixing hole 14, the lower end of the fixing pipe 22 is pressed into the internal space of the gear box 1, and the fixing pipe is tightly matched and fixed with the fixing hole; a lifting rod 23 is arranged in the fixed pipe 22; the upper end of the lifting rod 23 penetrates through the fixed pipe 22 and is provided with a positioning sheet 24; a plurality of positioning teeth 25 which are uniformly distributed are arranged on the front side of the right part of the positioning sheet 24; a plurality of positioning grooves 26 matched with the positioning teeth 25 are formed in one side of the firing pin 9 opposite to the positioning sheet 24; the upper end of the positioning screw 16 is provided with a guide structure matched with the positioning sheet 24; the lower end of the lifting rod 23 penetrates out of the fixed pipe 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 guide plate 21; 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 fixed tube 22.
The pressure regulating structure comprises a first screw hole 29 arranged at the right part of the pressure regulating plate 18, and the point contact 27 is screwed in the first screw hole 29; the upper end of the point contact 27 is provided with a straight groove 30, and the lower end part of the point contact 27 is spherical; the point contact 27 is externally screwed with a fastening nut 31 which is attached to the upper surface of the pressure regulating plate 18.
The lower end part of the point contact 27 is provided with a spherical caulking groove 32; the ball-shaped caulking groove 32 is internally provided with a ball 33 matched with the ball-shaped caulking groove, 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 sheet 24 is provided with a guide surface 34 which inclines forwards and rightwards; the guide structure comprises a limit plate 35 screwed on the upper end of the positioning screw 16, and the limit plate 35 is positioned above the firing pin 9; a movable gap is formed between the lower surface of the limit plate 35 and the upper surface of the positioning sheet 24, and the movable gap is larger than the thickness of the positioning sheet 24; a rear guide plate 36 attached to the guide surface is arranged on one side of the outer wall of the gear box 1 opposite to the limiting plate 35, and a front guide plate 37 attached to the side wall of the front side of the positioning teeth 25 is arranged at one end of the limiting plate 35; the lower end surface of the front guide plate 37 is attached to the upper surface of the firing pin 9; the upper part of the positioning screw 16 is provided with a backing plate 38 positioned on the lower surface of the firing pin 9, and the upper surface of the backing plate 38 is provided with a guide sleeve 3801 attached to the side wall of the firing pin 9.
The resetting structure comprises a second screw hole 39 arranged in the middle of the rocker 17, and a fixing bolt 40 is screwed in the second screw hole 39; the head of the fixing bolt 40 is positioned above the rocker 17, a buffer sheath 41 is sleeved outside the head of the fixing bolt 40, and the buffer sheath 41 is made of rubber; the diameter of the buffer sheath 41 is larger than the width of the rocker 17; the fixing bolt 40 is connected with the inner wall of the gear case 1 through a tension spring 42.
A buffer hole 43 communicated with the firing pin hole 7 is formed in the left side of the connecting head 2, and the left end of the upper air cylinder 3 is connected to the orifice position of the right end of the buffer hole 43; an annular buffer pad 44 is arranged in the buffer hole 43, and the buffer pad 44 is made of rubber; a rib groove 4301 is arranged on the inner wall of the lower side of the buffer hole 43; the lower surface of the cushion pad 44 is provided with positioning ribs 4401 matched with the rib grooves 4301, and the positioning ribs 4401 are embedded in the rib grooves 4301; the right side wall of the upper portion of the cushion pad 44 is provided with a notch 4402.
The positioning sheet 24 and the pressure regulating plate 18 are both provided with a waist-shaped hole 45; the upper end and the lower end of the lifting rod 23 are both provided with clamping heads 46 matched with the waist-shaped hole 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 fixed through screws 47.
A positioning seat 51 is arranged below the rocker 17 and is arranged in a hinge hole 1701 of the rocker 17, and the lower end of the positioning screw 16 penetrates through the positioning seat 51; 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 using method of the invention is as follows:
in the practical use process, a motor for driving the eccentric shaft seat 11 is arranged in the gear box 1, the connecting head is arranged on the right side above the gear box 1, the lower air cylinder 4 is positioned under the upper air cylinder 3, the lower air cylinder 4 is arranged on the right side of the gear box 1, the right end of the upper air cylinder 3 is connected with the right end of the lower air cylinder 4 through an air cylinder seat 5, the air cylinder cover 6 covers the outside of the air cylinder seat 5, and the air cylinder seat 5 is provided with an upper vent hole 48 communicated with the upper air cylinder 3 and a lower vent hole 49 communicated with the lower air cylinder 4; the side wall of the cylinder cover 6 opposite to the cylinder seat 5 is provided with a vent chamber 50, an upper vent hole 48 is communicated with a lower vent hole 49 through the vent chamber 50, when the eccentric shaft seat 11 is driven by a motor, the eccentric shaft 12 rotates along with the eccentric shaft seat, the eccentric shaft 12 is hinged with the piston arm 13, the eccentric shaft 12 pushes the lower piston 10 rightwards through the piston arm 13, the lower piston 10 moves rightwards along the track of the lower cylinder 4, the gas in the lower cylinder 4 is squeezed into the vent chamber 50 through the lower vent hole 49, the gas pressure in the vent chamber 50 is continuously increased along with the continuous right movement of the lower piston 10, the pressurized gas acts on the upper piston 8 through the upper vent hole 48, the upper piston 8 is pushed leftwards, and the firing pin is limited by the positioning piece 24 at the moment, and the upper piston 8 cannot move leftwards.
When the eccentric shaft 12 rotates to a certain angle, it will contact the pressure plate 18 located at the front side of the right end of the rocker 17 to push the rocker 17, at this time, the rocker 17 rotates with the positioning screw 16 as the center, the tension spring 42 is pulled and generates elasticity, as the rocker 17 rotates, the inclined plane guide plate 21 will gradually move to the right below the point contact 27, the end of the bottom end of the final point contact 27 will be attached to the upper surface of the inclined plane guide plate 21, then it will continue to rotate and move with the inclined plane guide plate 21, because the inclined plane guide plate 21 inclines to the left and down, the extension arm 19, the plane guide plate 20 and the inclined plane guide plate 21 enclose to form a C-shaped structure, the point contact 27 will be continuously pushed upwards by the inclined upper surface of the inclined plane guide plate 21, the point contact 27 is fixed on the pressure adjusting plate 18, the pressure adjusting plate 18 is fixed at the bottom end of the lifting rod 23, when the point contact 27 moves upwards, the point contact 27 will drive the lifting rod, during the upward movement of the lifting rod 23, the lifting spring 28 is compressed and generates an elastic force, when the lifting rod 23 moves upward, the positioning piece 24 disposed at the upper end of the lifting rod 23 moves upward, the positioning piece 24 drives the positioning teeth 25 to gradually move upward to separate from the positioning slots 26 on the striker 9, and when the point contact 27 moves from the inclined plane guide plate 21 to the plane guide plate 20, the positioning teeth 25 completely separate from the positioning slots 26.
Because the guide surface 34 at the rear side of the right part of the positioning plate 24 inclines forwards and rightwards, when the rear guide plate 36 is attached to the guide surface 34, the rear guide plate 36 can simultaneously limit and guide the rear and side directions of the positioning plate 24, when the front guide plate 37 is attached to the side wall at the front side of the positioning teeth 25, the front guide plate 37 can limit and guide the front of the positioning plate 24, under the matching action of the front guide plate 37 and the rear guide plate 36, the positioning plate 24 can only move up and down, no deviation can occur in the angle of the positioning plate 24, thereby effectively avoiding the situation that the positioning plate 24 is difficult to reset quickly or even can not reset because of the angular deviation in the upward moving process, when the positioning plate 24 moves up to the position above the firing pin 9, the positioning teeth 25 of the positioning plate 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 plate 24, the movable clearance is larger than the thickness of the positioning piece 24, so that the positioning piece 24 can drive the positioning teeth 25 to smoothly separate from the positioning groove 26, the upward movement of the positioning piece 24 is not limited by the limiting plate 35, after the limitation of the positioning teeth 25 is lost, the firing pin 9 can move freely, at the moment, 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, the firing pin 9 ejects nails from the muzzle of the nail gun to finish the nailing action, and the front guide plate 37 cooperates with the backing plate 38 to limit the movement trajectory of the striker 9 to the same plane, avoiding the striker from bending upward or downward, and backing plate 38 upper surface is equipped with the uide bushing 3801 with striker 9 lateral wall looks laminating, and the existence of uide bushing 3801 can be restricted when striker 9 is buckled to the side, effectively avoids the condition that the unsettled part of striker 9 leads to radial bending because of the atress, guarantees the stability when striker 9 uses.
After completing one nailing, the motor will drive the eccentric shaft seat 11 to drive the eccentric shaft 12 to continue rotating, so that the eccentric shaft 12 is reset, at this time, the eccentric shaft 12 will pull the lower piston 10 to move left to reset through the piston arm 13, the air in the upper cylinder 3 will be pumped into the lower cylinder 4 through the upper vent hole 48, the vent chamber 50, the lower vent hole 49 in sequence, the air pressure of the upper cylinder 3 will change, the upper piston 8 will move right to reset, when the upper piston 8 moves right to reset, the upper piston 8 will drive the striker 9 to move right to reset, at the same time, as the eccentric shaft 12 rotates to reset, the eccentric shaft 12 will not press on the pressure plate, after losing the pressure applied on the pressure plate 18, the rocker 17 will reset under the elastic force of the tension spring 42, after the rocker 17 resets, the point contact 27 will gradually separate from the inclined upper surface of the inclined surface guide plate 21, during this process, the pressure plate 18 will gradually move down to reset through the elastic force of the lifting spring 28, when the point contact 27 is completely separated from the inclined plane guide plate 21, the pressure regulating plate 18 drives the point contact 27 to be completely reset, meanwhile, when the positioning piece 24 is separated from the firing pin 9, the lifting spring 28 is reset to generate downward pressure and acts on the pressure regulating plate 18, the positioning piece 24 is reset downwards, the lower surface of the positioning piece is attached to the firing pin 9 until the firing pin 9 is retracted to the position, the positioning piece 24 enters the corresponding positioning groove 26 of the firing pin 9, the firing pin 9 is located in a locking state again, and limiting teeth at the attaching surface of the positioning piece 24 and the firing pin 9 are provided with chamfers, so that the positioning piece 24 can conveniently enter the firing pin positioning groove 26 quickly.
And when rocker 17 resets, the elasticity of extension spring 42 acts on rocker 17 in the twinkling of an eye, then can make rocker 17 inevitable striking on the inner wall of gear box 1, because the diameter of buffer sheath 41 is greater than the width of rocker 17, buffer sheath 41 then can replace rocker 17 and gear box 1 inner wall to bump, and buffer sheath 41 is the rubber material, can effectively cushion the impact force through the elastic property of self material to effectively avoid rocker 17 and gear box 1 inner wall to appear the condition of damage.
When the pressure of the electric nail gun needs to be adjusted, the pressure adjusting work can be completed only by changing the height position of the point contact 27 of the pressure adjusting structure, when the height position of the point contact 27 needs to be changed, the upper end of the point contact 27 is only needed to be held to rotate, the point contact 27 can move up and down along the thread track of the first screw hole 29, when the height position of the point contact 27 is adjusted, a straight screwdriver can be inserted into the straight groove 30 to fix the point contact 27, then an external wrench is used to rotate the fastening nut 31, so that the point contact is fastened on the pressure plate 18 through the fastening nut 31, the stability of the point contact 27 after the height position adjustment is completed is effectively ensured, the loosening condition cannot occur, when the height position of the point contact 27 is changed, the distance that the inclined plane guide plate 21 can touch the point contact 27 is changed along with the inclined plane guide plate, the positioning teeth 25 of the positioning plate 24 can be separated from the positioning grooves 26 on the firing pins 9 earlier or later, meanwhile, the eccentric shaft 12 can rotate by a smaller angle to touch the pressing plate 18 of the rocker 17 or rotate by a larger angle to touch the pressing plate 18 of the rocker 17, the rotation angle of the eccentric shaft 12 changes, the moving distance of the lower piston 10 changes accordingly, when the moving distance of the lower piston 10 is different, the air pressure of the extruded gas is different, therefore, when the air pressure acting on the upper piston 8 is different, the force of the firing pin 9 striking the nail is different, and different forces can strike the nail by different depths, so that the nailing depth adjustable effect is realized, and the nailing requirement can be adapted to more nailing requirements.
The lower end of the point contact 27 is spherical, so that the friction force between the point contact 27 and the inclined plane guide plate 21 and the plane guide plate 20 can be effectively reduced, the point contact 27 can smoothly slide along the upper surface of the inclined plane guide plate 21 and the upper surface of the plane guide plate 20, the lower end of the point contact 27 is provided with a spherical caulking groove 32, a ball 33 matched with the spherical caulking groove is arranged in the spherical caulking groove 32, one end of the ball 33 protrudes out of the spherical caulking groove 32, the friction force between the point contact 27 and the inclined plane guide plate 21 and the plane guide plate 20 can be further reduced due to the existence of the ball 33, when the point contact 27 slides, the ball 33 can roll by virtue of contact with the inclined plane guide plate 21 and the plane guide plate 20, and the smooth performance of the point contact 27 when the rolling ball 33 slides can be ensured to the maximum extent.
In conclusion, 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 simultaneously, when the lower piston 10 moves, the pressurized gas acts on the upper piston 8 and pushes the upper piston, when the rocker 17 rotates, the positioning piece 24 drives the positioning teeth 25 to separate from the positioning groove 26 on the firing pin 9, when the positioning teeth 25 completely separate from the positioning groove 26, the upper piston 8 drives the firing pin 9 to eject nails, thereby realizing the automatic nailing effect, without manually removing the limitation of the positioning piece 24 on the firing pin 9, reducing the trouble in the nailing process, effectively improving the nailing efficiency, and in the process that the positioning piece drives the positioning teeth 25 to separate from the positioning groove 26 on the firing pin 9, the guide structure always guides the positioning piece, so that the positioning piece 24 can only move up and down all the time, and the angle of the positioning piece can not be changed at all times, can effectively avoid the spacer 24 the condition of positional deviation appears in the lift in-process, guarantee the resetting that spacer 24 can be quick accurate, can also adjust the inside atmospheric pressure of nail rifle through the pressure regulating structure, make the upper piston can drive the firing pin under different atmospheric pressure effects and beat the nail, the dynamics that the firing pin 9 was applyed on the nail is different, just can beat different degree of depth, realize nailing degree of depth adjustable effect, thereby can adapt to more nailing requirements.
A buffer hole 43 communicated with the firing pin hole 7 is arranged at the left side of the connecting head 2, the left end of the upper air cylinder 3 is connected with the orifice position at 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 drives the striker 9 to move under the action of the maximum air pressure, the upper piston 8 can be impacted into the buffer hole 43, at the moment, the upper piston 8 can collide with the buffer pad 44, the buffer pad 44 can effectively buffer the upper piston 8, the condition that the upper piston 8 directly collides with the inner wall of the connector 2 to cause damage is effectively avoided, and the inboard wall of buffering hole 43 downside is equipped with rib groove 4301, and the blotter 44 lower surface is equipped with and fixes a position muscle 4401 with rib groove 4301 assorted, fixes a position muscle 4401 and inlays in rib groove 4301, and the upper portion right side lateral wall of blotter 44 is equipped with breach 4402, and the existence of breach 4402 makes the blotter 44 only the right side lateral wall of lower part contact with last piston 8.
Waist-shaped holes 45 are formed in the positioning plate 24 and the pressure regulating plate 18, clamping heads 46 matched with the waist-shaped holes 45 are arranged at the upper end and the lower end of the lifting rod 23, 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 fixed through screws 47, and the connecting mode facilitates the disassembly among the positioning plate 24, the pressure regulating plate 18 and the lifting rod 23 and is beneficial to maintenance and replacement.
Claims (9)
1. The utility model provides a locking device of electronic nail rifle firing pin, including the gear box, the connector, go up the cylinder, lower cylinder, the cylinder block, the cylinder head, connector left side lateral wall is equipped with the firing pin hole that link up mutually with last cylinder, upward be equipped with the piston in the cylinder, it is equipped with the firing pin to go up piston left side lateral wall center, the firing pin left end passes the firing pin hole left, be equipped with lower piston in the lower cylinder, be equipped with eccentric shaft seat in the gear box, eccentric shaft seat one side is equipped with the eccentric shaft, lower piston left side lateral wall center articulates there is the piston arm, piston arm one end articulates on the eccentric shaft: a fixing hole and a positioning hole corresponding to the fixing hole are formed in the left side of the upper surface of the gear box; a positioning screw matched with the positioning hole is arranged in the positioning hole; the lower end of the positioning screw rod penetrates into the internal space of the gear box downwards and is hinged with a rocker; a reset structure matched with the gear box is arranged on the rocker; a pressing plate corresponding to the position of the eccentric shaft is arranged on the front side of the right end of the rocker; an extension arm is arranged at the rear side of the middle part of the rocker; 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 which inclines to the left lower side, and the extension arm, the plane guide plate and the inclined plane guide plate are enclosed to form a C-shaped structure; a fixing pipe matched with the fixing hole is arranged in the fixing hole, the lower end of the fixing pipe is pressed into the internal space of the gear box, and the fixing pipe is tightly matched and fixed with the fixing hole; a lifting rod is arranged in the fixed pipe; the upper end of the lifting rod penetrates out of the fixing pipe and is provided with a positioning sheet; a plurality of positioning teeth which are uniformly distributed are arranged on the front side of the right part of the positioning sheet; a plurality of positioning grooves matched with the positioning teeth are formed in one side of the firing pin opposite to the positioning sheet; the upper end of the positioning screw is provided with a guide 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 the inclined 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 fixed pipe.
2. The locking device for the striker of the electric nail gun as claimed in claim 1, wherein: the pressure regulating structure comprises a first screw hole arranged at the right part of the pressure regulating plate, and the point contact is screwed in the first screw hole; the upper end of the point contact is provided with a straight groove, and the lower end part of the point contact is spherical; the outer screw of point contact has a fastening nut who laminates mutually with pressure regulating plate upper surface.
3. The locking device for the striker of the electric nail gun as claimed in claim 2, wherein: the lower end part of the point contact is provided with a spherical caulking groove; the ball caulking groove is internally provided with a ball matched with the ball caulking groove, and one end of the ball is protruded out of the ball caulking groove.
4. The locking device for the striker of the electric nail gun as claimed in claim 1, wherein: the rear side of the right part of the positioning sheet is provided with a guide surface which inclines forwards and rightwards; the guide structure comprises a limit plate in threaded connection with the upper end of the positioning screw rod, and the limit plate is positioned above the firing pin; a movable gap is formed between the lower surface of the limiting plate and the upper surface of the positioning plate, and the movable gap is larger than the thickness of the positioning plate; a rear guide plate attached to the guide surface is arranged on one side, opposite to the limiting plate, of the outer wall of the gear box, and a front guide plate attached to the side wall of the front side of the positioning tooth is arranged at one end of the limiting plate; the lower end surface of the front guide plate is attached to the upper surface of the firing pin; the upper part of the positioning screw is provided with a backing plate positioned on the lower surface of the firing pin, and the upper surface of the backing plate is provided with a guide sleeve attached to the side wall of the firing pin.
5. The locking device for the striker of the electric nail gun as claimed in claim 1, wherein: the reset structure comprises a second screw hole arranged in the middle of the rocker, and a fixing bolt is screwed in the second screw hole; the head of the fixing bolt is positioned above the rocker, a buffer sheath is sleeved outside the head of the fixing bolt, and the buffer sheath is made of rubber; the diameter of the buffer sheath is larger than the width of the rocker; the fixing bolt is connected with the inner wall of the gear box through a tension spring.
6. The locking device for the striker of the electric nail gun as claimed in claim 1, wherein: the positioning teeth and the positioning grooves are 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 planes, and the outer walls of the positioning teeth and the inner walls of the positioning grooves are attached.
7. The locking device for the striker of the electric nail gun as claimed in claim 1, wherein: the left side of the connector is provided with a buffer hole communicated with the striker hole, and the left end of the upper cylinder is connected to the orifice position at the right end of the buffer hole; an annular buffer cushion is arranged in the buffer hole, and the buffer cushion is made of rubber; a rib groove is formed in the inner wall of the lower side of the buffer hole; the lower surface of the buffer cushion is provided with positioning ribs matched with the rib grooves, and the positioning ribs are embedded in the rib grooves; a notch is formed in the side wall of the right side of the upper portion of the buffering cushion.
8. The locking device for the striker of the electric nail gun as claimed in claim 1, wherein: the positioning plate and the pressure regulating plate are provided with waist-shaped holes; the upper end and the lower end of the lifting rod are provided with clamping heads 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 fixed through screws.
9. The locking device for the striker of the electric nail gun as claimed in claim 1, wherein: a positioning seat is arranged below the rocker and is arranged in the rocker hinge hole, and the lower end of the positioning screw 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 CN111546292A (en) | 2020-05-21 | 2020-05-21 | Locking device of striker 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 CN111546292A (en) | 2020-05-21 | 2020-05-21 | Locking device of striker of electric nail gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111546292A true CN111546292A (en) | 2020-08-18 |
Family
ID=72006539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010435247.1A Pending CN111546292A (en) | 2020-05-21 | 2020-05-21 | Locking device of striker of electric nail gun |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111546292A (en) |
| WO (1) | WO2021232519A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2023024258A1 (en) * | 2021-08-23 | 2023-03-02 | 浙江荣鹏气动工具股份有限公司 | Locking device capable of adjusting nailing force of electric nail gun |
| WO2023160636A1 (en) * | 2022-02-24 | 2023-08-31 | 张华定 | Striker locking structure of nail gun |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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-powered fastener driver |
| 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 |
| CN210550947U (en) * | 2019-07-05 | 2020-05-19 | 朱益民 | Cylinder and nailing tool |
| CN111136617A (en) * | 2020-01-17 | 2020-05-12 | 浙江东亚工具有限公司 | Air nail gun capable of adjusting nailing depth |
-
2020
- 2020-05-21 CN CN202010435247.1A patent/CN111546292A/en active Pending
- 2020-07-08 WO PCT/CN2020/096000 patent/WO2021232519A1/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023024258A1 (en) * | 2021-08-23 | 2023-03-02 | 浙江荣鹏气动工具股份有限公司 | Locking device capable of adjusting nailing force of electric nail gun |
| WO2023160636A1 (en) * | 2022-02-24 | 2023-08-31 | 张华定 | Striker locking structure of nail 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021232519A1 (en) | 2021-11-25 |
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