CN218785542U - Firing pin assembly, energy storage control mechanism and nail gun - Google Patents

Firing pin assembly, energy storage control mechanism and nail gun Download PDF

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Publication number
CN218785542U
CN218785542U CN202222461507.XU CN202222461507U CN218785542U CN 218785542 U CN218785542 U CN 218785542U CN 202222461507 U CN202222461507 U CN 202222461507U CN 218785542 U CN218785542 U CN 218785542U
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China
Prior art keywords
pushing
piston
energy storage
nail
firing pin
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CN202222461507.XU
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Chinese (zh)
Inventor
杨涛
李海军
黄锦全
周卫荣
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Taizhou Dajiang Industry Co Ltd
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Taizhou Dajiang Industry Co Ltd
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Priority to CN202222461507.XU priority Critical patent/CN218785542U/en
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Publication of CN218785542U publication Critical patent/CN218785542U/en
Priority to US18/368,815 priority patent/US20240091920A1/en
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Abstract

The utility model belongs to the technical field of fastening tool, concretely relates to firing pin subassembly, energy storage control mechanism and nail gun. The firing pin assembly includes: the piston is movably arranged in the shell, and the firing pin is detachably arranged on the piston and used for impacting the gun needle, wherein one side of the piston, facing the gun needle, is provided with a fixed part, and the end part of the firing pin is connected to the fixed part through threads. According to the utility model discloses a firing pin subassembly, energy storage control mechanism and power actuated setting device, because the tip of firing pin is on the fixed part of piston through threaded connection, consequently make things convenient for the firing pin directly to dismantle the change, and need not to change whole piston, not only change the convenience and practiced thrift the cost.

Description

Firing pin assembly, energy storage control mechanism and nail gun
Technical Field
The utility model belongs to the technical field of fastening tool, concretely relates to firing pin subassembly, energy storage control mechanism and power actuated setting device.
Background
The nail gun is a fastening tool, is used for building construction mostly, at present, a widely used nail gun is an electric nail gun adopting lithium batteries, the nail gun is powered by the lithium batteries, a driving motor and a corresponding driving structure push a piston, and then the piston compresses a force supply spring to store energy, when a nail is shot, the piston is driven to move by the elasticity of the force supply spring, and then a firing pin arranged on the piston is driven to shoot the shot nail by impact.
However, in the above patent technology, there still exist some disadvantages such as: the firing pin is usually fixed on the piston directly by welding, and after the firing pin is used for a long time, if the firing pin is worn and damaged, the whole firing pin and the piston need to be replaced together, so that the cost is high.
Disclosure of Invention
For solving above-mentioned problem, provide a demountable installation's firing pin, only need change the firing pin subassembly that the firing pin can when the firing pin replacement to and energy storage control mechanism and the power actuated setting device that contain this kind of firing pin subassembly, the utility model discloses a following technical scheme:
the utility model provides a firing pin subassembly sets up in the power actuated setting device that has the casing for hit the rifle nail in the rifle mouth mechanism of power actuated setting device and hit and play, have such characteristic, include: the piston is movably arranged in the shell, the firing pin is detachably mounted on the piston and used for impacting the gun nail, a fixing portion is arranged on one side, facing the gun nail, of the piston, and the end portion of the firing pin is connected to the fixing portion through threads.
The utility model provides an among the firing pin subassembly, can also have such characteristic, wherein, a style of calligraphy socket has been seted up along the horizontal direction to the fixed part, sets up the fixed orifices that runs through this style of calligraphy socket along vertical direction, and the tip of firing pin inserts in this style of calligraphy socket, and the mounting hole that corresponds with the fixed orifices is seted up to the tip of firing pin, passes fixed orifices and mounting hole through bolt or screw and fixes the firing pin on the fixed part.
The utility model also provides an energy storage control mechanism, set up in the power actuated setting device who has the casing for the rifle nail of control and drive power actuated setting device is hit and is beaten and go out, has such characteristic, include: the striker assembly includes a striker assembly, an energy storage assembly for storing energy for and urging the striker assembly to move, and a control assembly for controlling the operation of the energy storage assembly, wherein the striker assembly is the striker assembly as described above.
The utility model provides an among the energy storage control mechanism, can also have such characteristic, wherein, the energy storage subassembly has: the guide rod is installed in the shell through the fixed seat, a piston and a force supply spring are movably arranged on the guide rod, the guide rod is sleeved on the periphery of the guide rod, one end of the guide rod is abutted to the piston and is pushed by the piston to perform compression energy storage, the pushing component is provided with a pushing end facing the piston and used for pushing the piston to move towards the force supply spring so as to enable the force supply spring to perform compression energy storage, and the driving motor is used for driving the pushing component to rotate; the control assembly has: the main switch has according to splenium and main switch element, and safety switch has toggle portion and safety switch element, and main switch, safety switch and driving motor link, and when main switch element all produced the signal of telecommunication with the safety switch element, driving motor ran.
The utility model provides an among the energy storage control mechanism, can also have such characteristic, wherein, the periphery of guide bar still overlaps and is equipped with the guide pin bushing, and this guide pin bushing is located between power spring and the guide bar, and the length of guide pin bushing is less than the length after power spring is compressed.
The utility model provides an among the energy storage control mechanism, can also have such characteristic, wherein, be provided with on the piston and support the propelling movement end with the propelling movement end is mutually supported to have: the first end that pushes against extends along the nail shooting direction of power actuated setting device from the piston, and the second end that pushes against extends towards the pushing component from the piston, and the promotion end has: the first pushing end is matched with the first abutting end, the second pushing end is matched with the second abutting end, and the outer diameter of the second pushing end is smaller than that of the first pushing end.
In the energy storage control mechanism provided by the present invention, such a feature may also be provided wherein the pushing member further has a crank, the crank containing: the first crank arm is used for installing the first pushing end, the second crank arm is used for installing the second pushing end and is equal in length to the first crank arm, an included angle is formed between the first crank arm and the second crank arm, the first pushing end and the second pushing end are cylindrical and are respectively arranged at the outer end portions of the first crank arm and the second crank arm, the outer end portions of the first crank arm and the second crank arm are arc-shaped, and the outer edge of the first pushing end protrudes out of the outer end portion of the first crank arm.
The utility model provides an among the energy storage control mechanism, can also have such characteristic, the portion of stirring has: the poking sheet is used for being in contact with the contact point of the safety switch element to generate an electric signal; one end of the deflector rod is linked with the pushing component, and the other end of the deflector rod is linked with the shifting sheet and is used for pushing the shifting sheet to break the contact with the safety switch element; the shifting piece seat is internally provided with a shifting piece return spring, one end of the shifting piece is propped against the shifting piece return spring, and the other end of the shifting piece extends out of the shifting piece seat to be linked with the shifting rod; the shifting piece comprises: a contact plate for contacting with a touch point of the safety switch element, a poke plate for contacting with a poke rod, and when the touch point of the safety switch element contacts with the contact plate, the safety switch element generates an electric signal; when the contact point of the safety switch element is separated from the contact plate, the safety switch element disconnects the electrical signal.
The utility model provides an among the energy storage control mechanism, can also have such characteristic, still include the bent lever subassembly for promote the plectrum and move with the safety switch component, and have: the outer end of the outer curved rod extends out of a gun nozzle mechanism of the nail gun, the inner end of the outer curved rod is linked with the shifting sheet and is used for enabling the contact plate to be in contact with a contact point of the safety switch element, the outer end of the inner curved rod is linked with the outer curved rod, the inner end of the inner curved rod is combined with the shifting sheet seat, and a curved rod reset spring is arranged at one end, close to the outer curved rod, of the inner curved rod.
The utility model also provides a power actuated setting device, have such characteristic, include at least: the gun nozzle mechanism comprises a shell, a gun nozzle mechanism and an energy storage control mechanism, wherein the shell is internally provided with an installation cavity, the gun nozzle mechanism is installed at the front end of the shell, the energy storage control mechanism is installed in the installation cavity, and the driving control mechanism is the energy storage control mechanism.
Utility model with the functions and effects
According to the utility model discloses a firing pin subassembly, energy storage control mechanism and power actuated setting device, because the tip of firing pin is on the fixed part of piston through threaded connection, consequently make things convenient for the firing pin directly to dismantle the change, and need not to change whole piston, not only change the convenience and practiced thrift the cost.
Drawings
Fig. 1 is a structural view of a nail gun according to embodiment 1 of the present invention.
Fig. 2 is a structural view of the nail gun of embodiment 1 of the present invention with a part of the housing removed.
Fig. 3 is a partial configuration view of a muzzle mechanism according to embodiment 1 of the present invention.
Fig. 4 is a structural diagram of the nail-shooting energy storage control mechanism according to embodiment 1 of the present invention.
Fig. 5 is a gun nozzle mechanism mounting structure view according to embodiment 1 of the present invention.
Fig. 6 is an exploded view of the piston and the pushing member according to embodiment 1 of the present invention.
Fig. 7 is an exploded view of the striker assembly according to embodiment 1 of the present invention.
Fig. 8 is a schematic view of an installation structure of the piston and the cylinder head base according to embodiment 1 of the present invention.
Fig. 9 is a mounting structure diagram of the unidirectional rotation member and the speed reducer according to embodiment 1 of the present invention.
Fig. 10 is one of the process diagrams of the pushing member of embodiment 1 of the present invention engaging with the piston and pushing the piston to move.
Fig. 11 is a second process diagram of the pushing member of embodiment 1 of the present invention engaging with the piston and pushing the piston to move.
Fig. 12 is a schematic view of a stroke analysis formed by the mutual fit of the pushing member and the piston pushing end according to embodiment 1 of the present invention.
Fig. 13 is a schematic view illustrating the stroke analysis formed by the cooperation of the pushing member and the pushing end of the piston in the control group.
Fig. 14 is a schematic structural view of the safety switch of embodiment 1 of the present invention installed in a housing.
Fig. 15 is a partially enlarged view of fig. 14 at a.
Fig. 16 is a schematic structural view of the pick of the embodiment of the present invention installed in the pick holder.
Fig. 17 is an exploded view of the mounting structure of the pick and the pick holder according to the embodiment of the present invention.
Fig. 18 is a partially enlarged view of fig. 14 at B.
Fig. 19 is one of the schematic installation positions of the safety switch and the crank assembly according to embodiment 1 of the present invention.
Fig. 20 is a second schematic view showing the installation positions of the safety switch and the trip lever assembly according to embodiment 1 of the present invention.
Fig. 21 is a schematic structural view of the safety switch of embodiment 2 of the present invention installed in a housing.
Fig. 22 is a schematic view of the installation position of the safety switch and the trip lever assembly according to embodiment 2 of the present invention.
Reference numerals are as follows: the nail gun comprises a nail gun 10, a shell 20, a machine shell 21, a front cover plate 211, a rear cover plate 212, a mounting part 2121, a handle 213, a bottom support 214, a mounting groove 2141, a gun nozzle mechanism 30, a cartridge clip 31, a gun nozzle bottom plate 32, a gun nozzle cover plate 33, a nail passing channel 34, a nail shooting driving mechanism 40, a piston 41, a first pushing end 411, a second pushing end 412, a fixing part 413, a straight-line socket 4131 fixing hole 4132, mounting portion 414, mounting seat 4141, connecting portion 415, force supply spring 42, rear fixing plate 421, guide rod 48, guide sleeve 481, pushing member 43, crank 430, first crank arm 4301, second crank arm 4302, first pushing end 431, second pushing end 432, driving motor 44, motor 441, speed reducer 442, unidirectional rotation member 45, ratchet 451, ratchet wheel 451, and the like ratchet 4511, pawl 452, pawl spring 453, main switch 46, pressing part 461, main switch element 462, safety switch 47, toggle part 471, contact plate 47111, toggle plate 47112, connection plate 47113, toggle return spring 47114, toggle rod 4712, first toggle rod 47121, guide surface 471211, second toggle rod 47122, pin shaft 47123, toggle seat 4713, spring seat 47131, jack 47132, safety switch element 472, touch point 4721, front fixing plate 422, mounting plate 4221, screw 4222, through hole 4223, cushion 423, striker 521, mounting hole 491, crank assembly 50, outer crank 51, inner crank 52, short side 521, long side 522, touching section 5221, pressing plate 53, protective cover 54, crank return spring 55, lithium battery 60.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the firing pin assembly, the energy storage control mechanism and the nail gun of the present invention are specifically described below with reference to the embodiments and the drawings.
< example 1>
The present embodiment provides a lithium electric nail gun.
Fig. 1 is a structural view of a nail gun according to embodiment 1 of the present invention.
Fig. 2 is a structural view of the nail gun of embodiment 1 of the present invention with a part of the casing removed.
As shown in fig. 1 to 2, the nail gun 10 of the present embodiment includes a housing 20, a gun nozzle mechanism 30, a nail-shooting energy storage control mechanism 40 (i.e., an energy storage control mechanism), and a power supply unit (a lithium battery 60). The casing 20 is a casing 21 arranged on the outer side, the casing 21 is formed by mutually buckling a front cover plate 211 and a rear cover plate 212 which are arranged in front and back, an installation cavity for installing the nail-shooting energy-storage control mechanism 40 is formed inside the casing, and the casing 21 not only can accommodate internal components such as the nail-shooting energy-storage control mechanism 40, but also can protect the internal components. The main body housing 21 includes a handle 213 for a user to hold and a bottom support 214 connected to the handle 213, the handle 213 and the bottom support 214 are both hollow structures, the bottom support 214 has a mounting groove 2141, and the lithium battery 60 is detachably mounted on the mounting groove 2141. The power supply unit is used for supplying power to the whole nail gun; the gun nozzle mechanism 30 is used for storing the gun nails and enabling the gun nails to be shot out; the staple ejection energy storage control mechanism 40 is used to drive the firing pin in a predetermined reciprocating direction to fire the staples out of the muzzle mechanism 30 for ejection.
Fig. 3 is a partial configuration diagram of a muzzle mechanism according to embodiment 1 of the present invention.
As shown in fig. 2-3, the gun nozzle mechanism 30 is disposed at the front end of the casing 21, the gun nozzle mechanism 30 has a cartridge holder 31 for storing the gun nails, a gun nozzle bottom plate 32 and a gun nozzle cover plate 33 mounted on the top of the cartridge holder 31, a nail passing channel 34 for ejecting the gun nails is disposed between the gun nozzle bottom plate 32 and the gun nozzle cover plate 33, and the nail-ejecting energy-storage control mechanism 40 is used for impacting the gun nails to eject the gun nails from the nail passing channel 34.
Fig. 4 is a structural diagram of the nail-shooting energy storage control mechanism according to embodiment 1 of the present invention.
As shown in fig. 4, the nail firing energy storage control mechanism 40 includes a striker assembly for striking a nail in a nose mechanism of the nail gun, an energy storage assembly for storing energy for the striker assembly and causing movement thereof, and a control assembly for controlling operation of the energy storage assembly. The striker assembly has a piston 41 movably disposed within the housing 20 and a striker 49 for striking the gun nail, and the energy storage assembly includes at least one power spring 42, at least one guide rod 48, at least one guide sleeve 481, a pusher member 43, and a drive motor 44 for rotating the pusher member 43. The guide rod 48 is installed in the housing 20 through a fixed seat, the piston 41 is movably arranged on the guide rod 48, a firing pin 49 used for striking a gun nail to enable the gun nail to be struck is installed on the piston 41, the force supply spring 42 is sleeved on the periphery of the guide rod 48, one end of the force supply spring is abutted to the piston 41 and is pushed by the piston 41 to perform compression energy storage, a guide sleeve 4221 is further sleeved on the periphery of the guide rod, and the guide sleeve 4221 is located between the force supply spring 42 and the guide rod 48.
Specifically, as shown in fig. 2, the fixing base includes a front fixing plate 422 and a rear fixing plate 421 for fixing front and rear ends of the guide rod 48, a fastening groove structure is disposed in the mounting cavity inside the housing 21, the front fixing plate 422 is fixed to the front end of the fastening groove structure (in this embodiment, the front fixing plate 422 is a sheet structure), the rear fixing plate 421 is fixed to the rear end of the fastening groove structure (in this embodiment, the rear fixing plate 421 is also a sheet structure), a pair of parallel guide rods 48 is disposed between the front fixing plate 422 and the rear fixing plate 421, the piston 41 is located on a side of the guide rod 48 close to the front fixing plate 422, the guide rod 48 passes through the piston 41 and is fixed to the front fixing plate 422 through a bolt, a cushion 423 is further disposed between the front fixing plate 422 and the piston 41, and the piston 41 is slowed down in collision with the front fixing plate 422 during movement of the piston 41. As shown in fig. 4, in this embodiment, two parallel force-supplying springs 42 are provided, the front ends of the force-supplying springs 42 abut against the piston 41, the rear ends thereof abut against the rear fixing plate 421, the two force-supplying springs 42 are respectively sleeved on the peripheries of the two guide rods 48, one ends of the guide rods 48 are fixed to the rear fixing plate 421 through screws, and the other ends thereof penetrate through the piston 41 and are fixed to the front fixing plate 422. The guide rod 48 serves to guide the piston 41 to reciprocate in a predetermined direction.
Similarly, the two guide sleeves 481 are also provided, and are respectively sleeved on the peripheries of the two guide rods 48 and located inside the power supply spring, and the length of the guide sleeve 4221 is smaller than the length of the power supply spring 42 when being compressed to a set limit position (when the length of the guide sleeve is designed, generally, when the piston moves to the limit position towards one side of the power supply spring, the guide sleeve and the piston do not interfere with each other, the longer the guide rod is, the better the guide rod is, the longer the guide rod is generally, the length of the guide rod is greater than the length of the power supply spring after being compressed), so that the power supply spring 42 can be normally compressed. The guide sleeve 481 is a cylinder with a small friction coefficient (generally made of nylon and polyformaldehyde, and can be replaced by other similar materials), and is arranged inside the force supply spring 42, when the force supply spring 42 is compressed or restored, the guide sleeve can move on the guide rod along the compression or restoration direction, the guide sleeve can play a role in guiding the force supply spring 42, and can also prevent deformation of the force supply spring in other directions, reduce abrasion of the force supply spring, prolong the service life of the force supply spring, and simultaneously reduce friction force when the force supply spring is compressed, so that the compression process of the force supply spring is smoother.
The front end of the piston 41 is provided with a striker 49 for striking the gun nail to fire the gun nail, and the rear end of the piston 41 is matched with the force supply spring 42, so that the piston 41 can be driven to move by the force supply spring 42 (namely, the force supply spring 42 is used for providing power for the movement of the piston 41). The pushing member 43 has a pushing end facing the piston 41 for pushing the piston 41 toward the end where the force supply spring 42 is located, thereby allowing the force supply spring 42 to perform compression energy storage. Correspondingly, the piston 41 is provided with a pushing end matched with the pushing end, the pushing end has a first pushing end 411 and a second pushing end 412, the first pushing end 411 extends from the piston 41 along the nail-shooting direction of the nail gun, and the second pushing end 412 extends from the piston 41 toward the pushing member 43. The pushing end has a first pushing end 431 matching with the first pushing end 411 and a second pushing end 432 matching with the second pushing end 412, the first pushing end 431 and the second pushing end 432 are both cylindrical structures, the pushing member 43 can drive the first pushing end 431 and the second pushing end 432 to rotate in the rotating process, the outer diameter of the second pushing end 432 is smaller than that of the first pushing end 431, and the height of the second pushing end 432 is also lower than that of the first pushing end 431.
Fig. 5 is a gun nozzle mechanism mounting structure view according to embodiment 1 of the present invention.
As shown in fig. 5, as a first embodiment of the front fixing plate 422, the front fixing plate 422 is located forward of the piston 41 in the striking direction, and a mounting plate 4221 is formed by extending forward near the lower end portion, the gun nozzle bottom plate 32 and the gun nozzle cover plate 33 are fixed above the mounting plate 4221 by bolts, the front end of the striker 49 at the middle portion of the piston 41 passes through the middle portion of the front fixing plate 422 and is inserted into the nail passing passage 34 between the gun nozzle bottom plate 32 and the gun nozzle cover plate 33, and the left and right sides of the front fixing plate 422 are fixed to the housing by screws 4222.
Fig. 6 is an exploded view of the piston and the pushing member according to embodiment 1 of the present invention.
Fig. 7 is an exploded view of the striker assembly according to embodiment 1 of the present invention.
Fig. 8 is a schematic view of an installation structure of the piston and the cylinder head base according to embodiment 1 of the present invention.
As shown in fig. 6 to 8, the fixing portion 413 is provided on the side of the piston 41 facing the gun nail for fixing the striker 49, the fixing portion 413 is generally shaped like a cylinder, a straight socket 4131 is formed in the middle portion of the fixing portion 413 in the horizontal direction (i.e., the axial direction of the cylinder), a fixing hole 4132 is formed in the vertical direction (i.e., the radial direction of the cylinder) through the entire cylinder and the straight socket 4131, the fixing hole 4132 is a threaded hole with threads, one end of the striker 49 is inserted into the straight socket 4131, and the end of the striker 49 is formed with a mounting hole 491 corresponding to the fixing hole 4132, and is inserted into the fixing hole 4132 by a bolt 416 or a screw, thereby fixing the striker 49 to the fixing portion 413. The striker 49 is mounted between the striker 49 and the piston 41 in a threaded connection mode, the mounting is a detachable mounting mode, when the striker 49 is worn and needs to be replaced, the striker 49 can be taken out for replacement only by detaching a bolt, the convenience is high, the piston is not damaged, the piston does not need to be replaced, and the cost is saved.
The rear side of fixed part 413 is provided with installation department 414 that is used for installing confession power spring 42, installation department 414 is two conical mount pads 4141 that correspond the confession power spring setting (as shown in fig. 6 and 8, the concrete shape of this toper is that the middle part is cylindrical, the cylindrical periphery distributes and has a plurality of reinforcing structure that are triangle-shaped), mount pad 4141 contains the great main aspects of width and the less tip of width, the centre bore that supplies guide bar 48 to pass is seted up at the middle part of uide bushing 481, the aperture of this centre bore is less than the diameter of tip, can avoid uide bushing 481 to block on the mount pad 4141 of piston 41 in the in-process that guide bar 48 moved. Through holes 4223 are formed in the middle of the mounting seat 4141 and at corresponding positions of the front fixing plate 422 and the cushion pad 423, and the front ends of the two guide rods 48 are fixed to the front fixing plate 422 through the corresponding through holes 4223.
The fixing portion 413 and the mounting portion 414 are connected by a plate-shaped connecting portion 415, a lower end of the connecting portion 415 extends downward (in the direction of the pushing member 43) to form a second pushing end 412, one side of the second pushing end 412 extends toward the fixing portion 413 to form a first pushing end 411, and the second pushing end 412 is substantially perpendicular to the first pushing end 411. As shown in fig. 8, the second embodiment of the front fixing plate 422 is only a square plate structure, in which case, the gun nozzle mechanism is directly fixed to the casing 20, and the gun nozzle bottom plate 32 is fixed to the casing 20 by bolts without being fixed to the front fixing plate 422.
The first pushing end 431 and the second pushing end 432 are cylindrical structures, the pushing member 43 further comprises a crank 430 which comprises a first crank arm 4301 and a second crank arm 4302, the first pushing end 431 is mounted at the outer end of the first crank arm 4301, the second pushing end 432 is mounted at the outer end of the second crank arm 4302, the first crank arm 4301 and the second crank arm 4302 are equal in length, an included angle is formed between the first crank arm 4301 and the second crank arm 4302, the outer ends of the first crank arm 4301 and the second crank arm 4302 are arc-shaped, the outer edge of the first pushing end 431 protrudes out of the outer end of the first crank arm 4301, and the outer edge of the second pushing end 432 is flush with or slightly recessed from the outer end of the second crank arm 4302.
As shown in fig. 4, the driving motor 44 includes a motor body 441 and a speed reducer 442, the speed reducer 442 is mounted on an output shaft of the motor body 441, the pushing member 43 is mounted on an output end of the speed reducer 442, and a unidirectional rotating member 45 is disposed between the pushing member and the speed reducer 442, and the pushing member 43 is driven by the motor body 441 and the speed reducer 442 to rotate in a unidirectional manner. The motor body 441 of the present embodiment is a brushless motor. The speed reducer 442 is mounted on an output shaft of the motor body 441 for reducing an output rotation speed of the motor body 441, thereby obtaining a higher output torque, that is, a greater driving force. The unidirectional rotation member 45 is used to restrict the rotation direction of the output 443 of the driving motor 44 (i.e., the output shaft of the reduction gear 442) so that it can rotate only in one direction. The unidirectional rotation member 45 is mounted on the output shaft of the reducer 442 and forms a hole-shaft fit with the output shaft, so that the output shaft can perform only unidirectional rotation. Meanwhile, when the pushing member 43 receives a pushing force for rotating it in the reverse direction, the unidirectional rotation member 45 receives the pushing force so that the pushing force is not transmitted to the output shaft, thereby protecting the motor body 441. The specific structure of the motor body 441 and the speed reducer 442 can adopt the structure in the prior art. As shown in fig. 1, 2 and 4, the driving motor and the pushing member 43 are both located almost right under the piston 41, so that the whole structure is more compact, the gravity is concentrated in the middle of the whole nail gun, and compared with the case that the motor and the driving part are arranged on the side surface, the structure is more stable and the stress is more uniform, and no redundant space is occupied.
During installation, a through hole is formed in the middle of the crank 430 at the joint between the first crank arm 4301 and the second pushing end 432, the crank 430 is installed at the output end of the reducer 442 through the through hole, and the crank 430 can rotate along with the motor body 441 and the reducer 442. The pushing member 43 is designed to be in the shape of the crank 430, and compared with structures such as a disc in the prior art, the structure is lighter, materials can be saved, energy consumption can be reduced, and the transmission effect is better.
When the pushing member 43 rotates, the first pushing end 431 and the second pushing end 432 thereof follow the crank 430 to perform an arc motion, and cooperate with the first abutting end 411 and the second abutting end 412 on the piston 41 respectively to push the piston 41 toward the energy storage direction. The shape and height of the first pushing end 431 correspond to the arrangement of the first pushing end 411, and the shape and height of the second pushing end 432 correspond to the arrangement of the second pushing end 412.
Fig. 9 is a mounting structure diagram of the unidirectional rotation member and the speed reducer according to embodiment 1 of the present invention.
In this embodiment, the unidirectional rotation member may be a unidirectional bearing, or may be a ratchet and ratchet structure as shown in fig. 9. The one-way bearing is a common structure, and will not be described herein too much, and mainly introduces the ratchet structure of the ratchet wheel in this embodiment. As shown in fig. 9, the unidirectional rotation member 45 has a ratchet 451, a pawl 452 and a pawl spring 453, the ratchet 451 is sleeved on the output end 443 and has a plurality of ratchet teeth 4511, the pawl 452 is disposed on the speed reducer 442 located on a side of the ratchet 451, the pawl 452 is inserted between the ratchet teeth 4511 and is matched with the ratchet teeth 4511 to make the ratchet 451 rotate in a unidirectional manner, one end of the pawl spring 453 is fixed on the speed reducer 443 through a bolt, and the other end of the pawl spring 453 abuts against the pawl 453 to make the pawl 452 move towards the pawl 452 and tend to be inserted into the ratchet teeth 4511.
Fig. 10 is one of the process diagrams of the pushing member of embodiment 1 of the present invention engaging with the piston and pushing the piston to move.
Fig. 11 is a second process diagram of the pushing member of embodiment 1 of the present invention engaging with the piston and pushing the piston to move.
As shown in fig. 10 and 11, the pushing member 43 is driven by the motor body 441 to rotate clockwise, and along with the rotation of the pushing member 43, the second pushing end 432 moves to the second abutting end 412 and abuts against the second abutting end 412, at this time, the pushing member 43 continues to rotate, the second pushing end 432 performs an arc-shaped motion approximately facing the energy storage direction, an arc-shaped pushing force approximately facing the energy storage direction is applied to the piston 41 through the second abutting end 412, the piston 41 can move towards the energy storage direction along the guide rod 48 under the action of the pushing force, and the force supplying spring 42 is compressed to store energy.
The second pushing end 432 completes the first stage of energy storage when rotating to the maximum stroke along the energy storage direction. At this time, the pushing member 43 continues to rotate, the second pushing end 432 rotates therewith and disengages from the second abutting end 412, meanwhile, the first pushing end 431 rotates to the first abutting end 411 and abuts against the first abutting end 411, and then the first pushing end 431 pushes the piston 41 to further move toward the energy storage direction in the same manner until the first pushing end 431 rotates to the maximum stroke along the energy storage direction, so as to complete the second stage of energy storage, thereby completing the whole spring energy storage process.
After the second section of energy storage is completed, the nail can be shot. When the nail is fired, the motor body 441 drives the pushing member 43 to rotate continuously, the first pushing end 431 rotates along with the pushing member and is separated from the first abutting end 411, and at this time, the first pushing end 431 and the second pushing end 432 are both located outside the moving path of the piston 41, so that the piston 41 can move towards the nail firing direction under the action of the elastic force of the power supply spring 42 until the striker 49 impacts the nail to eject the nail, and the nail firing process is completed. During the first stage energy storage or the second stage energy storage, the one-way bearing is provided, so that the crank 430 does not rotate in the opposite direction under the action of the piston 41, and the nail is not shot by mistake.
The motor body 441 is used for driving the pushing member 43 to rotate, so as to push the piston 41 to move through the pushing member 43, so that the force supply spring 42 is compressed to store energy, and finally the piston 41 is pushed out through the elastic force of the force supply spring 42.
Fig. 12 is a schematic view of a stroke analysis formed by the mutual cooperation of the pushing member and the piston abutting end according to embodiment 1 of the present invention.
Fig. 13 is a schematic view of the stroke analysis of the control group formed by the mutual cooperation of the pushing member and the pushing end of the piston.
In the embodiment, the first pushing end 431 and the second pushing end 432 are both cylindrical, and the outer diameter of the second pushing end 432 is smaller than that of the first pushing end 431, and the outer diameters of the two are not equal, so that the stroke of the piston can be enlarged compared with a mode of designing the outer diameters to be equal. The utility model people has carried out the reference experiment to this as follows:
as shown in fig. 12, in the present embodiment, the outer diameter of the first pushing end 431 is 18mm (the radius is 9 mm), the outer diameter of the second pushing end 432 is 14mm (the radius is 7 mm), the distance between the first abutting end 411 and the second abutting end 412 of the piston is 35mm, and the working stroke achieved by the experiment is 81.5mm.
As shown in fig. 13, as a control group of the present embodiment, the outer diameters of the first pushing end 431 and the second pushing end 432 are both 14mm (the radius is 7 mm), the distance between the first abutting end 411 and the second abutting end 412 of the piston is 35mm, and the working stroke that can be achieved by the experiment is 79.5mm, which is significantly smaller than the stroke that can be achieved by the present embodiment.
The operation mode formed by the above work is as follows:
the working stroke is S, the distance between the first pushing end and the second pushing end of the piston is L, the included angle between the first pushing end 431 and the second pushing end 432 is n (i.e. the included angle between the first crank arm 4301 and the second pushing end 432), and the arc length around when the first pushing end 431 and the second pushing end 432 rotate is calculated as: l = n π R/180 °; when the first pushing end 431 and the second pushing end 432 are in the same diameter (the radii are both R), the working stroke of the piston is S = L + L = L + (n pi R/180 °); the first and second pushing ends 431, 432 are not of equal diameter (radii R1 and R2, respectively) S = L + (R1-R2). It is clear that in the case of unequal diameters, the working stroke of the piston is increased by a distance (R1-R2) compared to the case of equal diameters. That is to say, the maximum working stroke is obtained as much as possible by adjusting the outer diameter of the pushing end without changing the length of the pushing end of the piston, and the larger the working stroke is, the larger the amount of compression of the force supply spring 42 is, so that the larger energy can be obtained, and the gun nail can be ejected more powerfully and rapidly. Meanwhile, as the nail gun needs to be compact in structure, the design length of the nail gun is reduced as much as possible, and the nail gun is also beneficial to operation, packaging and transportation.
As shown in fig. 2, the nail-driving energy-storage control mechanism 40 further includes a control component, the control component includes a main switch 46 and a safety switch 47, the main switch 46 and the safety switch 47 are connected in series and connected to the lithium battery 60 and the motor body 441, and when the main switch 46 and the safety switch 47 have electrical signals at the same time, the motor body 441 can be controlled to start.
The main switch 46 is a push-button type switch, and the specific structure can adopt the structure in the prior art, and includes a pressing portion 461 and a main switch element 462, and the main switch element 462 can generate a corresponding starting electric signal when the pressing portion 461 is pressed; the safety switch 47 is a linkage switch, and has a toggle portion 471 and a safety switch element 472, and the safety switch element 472 can generate an electrical signal when contacting the toggle portion 471. In the present embodiment, the main switch element 462 and the safety switch element 472 are both micro switches. When the main switch element 462 and the safety switch element 472 both generate electric signals, the motor body 441 operates to drive the pushing member 43 to rotate to complete the spring energy storage process.
Fig. 14 is a schematic structural view of the safety switch of embodiment 1 of the present invention installed in a housing.
Fig. 15 is a partially enlarged view of fig. 14 at a.
Fig. 16 is a schematic structural view of the pick of the embodiment of the present invention installed in the pick holder.
Fig. 17 is an exploded view of the mounting structure of the pick and the pick holder according to the embodiment of the present invention.
As shown in fig. 14 to 17, the toggle part 471 of the safety switch 47 has a toggle piece 4711, a toggle lever 4712 and a toggle piece seat 4713 for mounting the toggle piece 4711, and the toggle piece 4711 is located on the side of the safety switch element 472 and is interlocked therewith. The linkage mode is as follows: one side of the safety switching element 472 is provided with a touch point 4721, a dial 4711 is of a hook type and mounted on a dial plate holder 4713, the dial 4711 has a contact plate 47111, a dial plate 47112 and a connection plate 47113 for connecting the contact plate 47111 and the dial plate 47112. A contact plate 47111 is disposed toward a contact point 4721 of the safety switching element 472 for contacting the contact point 4721, the safety switching element generating an electrical signal when the contact point 4721 contacts the contact plate 47111; the outer end of the striking plate 47112 extends out of the striking plate seat 4713 for contacting the striking plate 4712, the length of the contact plate 47111 is less than the length of the striking plate 47112, the difference in length between the two forms a gap, the striking plate 47112 will move towards the side of the striking plate seat 4713 under the push of the striking plate 4712, thus carrying the contact plate 47111 to move and gradually separating from the contact point 4721, when the contact point 4721 is in the gap, the safety switch 472 will disconnect the electrical signal. In order to allow the paddle 4711 to return, a spring seat 47131 is further provided on the paddle seat 4713, a paddle return spring 47114 is provided at an end of the inner end of the spring seat 47131 facing the paddle 4711, and the paddle return spring 47114 abuts against a connecting plate 47113 of the paddle 4711.
Fig. 18 is a partially enlarged view of fig. 14 at B.
The shift lever 4712 is in the shape of a long rod with one end bent to control the movement of the shift piece 4711. The method comprises the following specific steps: the shift lever 4712 comprises a first shift lever 47121 and a second shift lever 47122, wherein the end of the first shift lever 47121 is disposed close to the pushing end of the pushing member 43 and can generate collision (scratch) during the rotation of the pushing end; an end portion of the second tap lever 47122 is located inside the tap 4711, a pin 47123 is disposed at a connection section where the first tap lever 47121 and the second tap lever 47122 are connected, a mounting portion 2121 for mounting the pin 47123 is protruded from an inner portion of the rear cover plate 212 of the housing 20, and the tap lever 4712 is rotatably mounted on the mounting portion 2121 through the pin 47123. Meanwhile, in this embodiment, the first poke rod 47121 and the second poke rod 47122 are arranged in a staggered manner, that is, the first poke rod 47121 and the second poke rod 47122 are not collinear, the whole poke rod 4712 is in a zigzag shape, and the length of the first poke rod 47121 is smaller than that of the second poke rod 47122, and by adopting the lever principle, once the first poke rod 47121 is scratched by the pushing end, the second poke rod 47122 and the first poke rod 47121 will rotate in the opposite direction, so as to touch the poke piece 4711 and push the poke piece 4711. The two are designed to be offset in order to allow the first tap lever 47121 to have enough space when rotating and to allow the second tap lever 47122 to obtain a required stroke when pushing the finger 4711.
Fig. 19 is one of the schematic installation positions of the safety switch and the crank assembly according to embodiment 1 of the present invention.
As shown in fig. 19, when the safety switch element 472 is in a state of having an electrical signal, that is, the contact point 4721 is in contact with the contact plate 47111 of the blade, when the pushing end of the pushing member 43 rotates clockwise, once the first pulling rod 47121 is cut by the blade, the first pulling rod 47121 is forced to rotate inwards, according to the lever principle, the second pulling rod 47122 rotates outwards to touch the pulling plate 47112 of the blade 4711, and pushes the blade 4711 to move outwards, so that the contact plate 47111 is away from the contact point 4721, at this time, the safety switch element 472 disconnects the electrical signal, and the driving motor also stops working immediately.
Because a poking return spring 47114 is arranged between one side of the poking piece 4711 and the poking piece seat, when the pushing end is not in contact with the first poking end 47121, the poking return spring 47114 pushes the poking piece 4711 inwards to return, and the first poking rod 47121 and the second poking rod 47122 also return successively. The outside of the first tap lever 47121 can be provided with an inclined guide surface to facilitate the collision of the pushing end with the first tap lever 47121 during rotation.
Fig. 20 is a second schematic view showing the installation positions of the safety switch and the trip lever assembly according to embodiment 1 of the present invention.
The spike firing energy storage control mechanism 40 further includes a crank assembly 50, the crank assembly 50 being configured to push the paddle 4711 in conjunction with the safety switch element 472. The curved rod assembly 50 has an outer curved rod 51 and an inner curved rod 52, as shown in fig. 1 and 2, the outer end of the outer curved rod 51 extends out of the casing 20 and is mounted on the muzzle cover 33 of the muzzle mechanism through a pressing plate 53, the outer end of the outer curved rod protrudes out of the muzzle mechanism, and the inner end of the outer curved rod 51 is inserted into the casing 20 and is linked with the inner curved rod 52. As shown in fig. 19 and 20, the inner curved rod 52 has a short side 521 and a long side 522 which are perpendicular to each other, the outer side of the short side 521 contacts with the inner end of the outer curved rod 51, the long side 522 extends to the vicinity of the pick holder 4713, and is bent at the end toward the pick holder 4713 to form a touching section 5221, an insertion hole 47132 is provided on the pick holder 4713, and the end of the touching section 5221 is inserted into the insertion hole 47132 so that the touching section 5221 is connected with the pick holder 4713.
The linkage of the crank assembly to the safety switch element 472 is specifically as follows:
when the nail gun is used, firstly, a gun nozzle mechanism on the front side is aligned to a target position needing to be nailed, as the outer end part of the outer curved rod 51 protrudes out of the gun nozzle mechanism, when the outer end part is propped against the target position, a reaction force is generated on the outer curved rod 51, so that the outer curved rod 51 moves towards one side of the nail gun, the inner end of the outer curved rod 51 touches the short edge 521 of the inner curved rod 52, so that the inner curved rod 52 is pushed to move inwards, the outer curved rod 51 drives the plectrum seat 4713 to move towards the safety switch element 472 in the moving process, so that the contact plate 47111 on the plectrum 4711 in the plectrum seat 4713 contacts with and presses the contact point 4721 of the safety switch element 472, and the safety switch element 472 generates an electric signal; then, a user presses the pressing part 461 to trigger the main switch element 462 to be turned on to generate an electric signal, when the two switch elements are both in an on state, the motor body 441 is turned on to allow the force spring to start energy storage, and then the gun nail is struck out to realize nail shooting.
As shown in fig. 20, a curved rod return spring 55 for urging the curved rod assembly to return is provided between the short side 521 of the inner curved rod 52 and the front fixing plate 422, and when the user takes down the nail gun after the completion of the nail driving and separates the outer end of the outer curved rod 51 from the target portion, the curved rod return spring 55 drives the inner curved rod 52 and the outer curved rod 51 to return. The outer end part of the outer curved rod 51 is also provided with a protective cover 54, and the protective cover 54 is contacted with a target part, so that the abrasion of the outer end of the outer curved rod 51 can be reduced, and the service life of the outer curved rod is prolonged.
The working principle of the embodiment is as follows:
when the nail gun is used, the gun nozzle mechanism on the front side is aligned to a target position to be nailed, the outer curved rod 51 is pushed, the inner curved rod drives the shifting piece seat to move towards the safety switch element 472, the safety switch element 472 is prompted to be started to generate an electric signal, then a user starts the main switch element 462 to generate the electric signal, and at the moment, the main switch and the safety switch generate the electric signal, so that the motor body 441 is started to drive the pushing member 43 to rotate. The pushing member 43 urges the piston 41 to move toward the power supply spring 42 during the rotation, thereby compressing the power supply spring 42 and performing the first stage energy storage and the second stage energy storage step by step. After the second section of energy storage is finished, the nail can be shot. When the nail is fired, the motor body 441 drives the pushing member 43 to rotate continuously, the first pushing end 431 rotates along with the pushing member and is separated from the first abutting end 411, and at this time, the first pushing end 431 and the second pushing end 432 are both located outside the moving path of the piston 41, so that the piston 41 can move towards the nail firing direction under the action of the elastic force of the power supply spring 42 until the striker 49 impacts the nail to eject the nail, and the nail firing process is completed. Meanwhile, since the outer edge of the first pushing end 431 is arranged to protrude out of the outer end part of the first crank arm 4311, the first pushing end 431 can scrape and rub against the first poke rod 47121 in the rotating process, so that the first poke rod 47121 is caused to rotate inwards, the second poke rod 47122 is caused to poke outwards and touches the poke piece 4711, the poke piece 4711 is caused to move outwards, so that the contact plate 47111 is caused to leave the touch point 4721, and at the moment, the touch point 4721 is just aligned with the open groove 47112, and the safety switch element 472 is disconnected, so that the motor stops rotating.
< example 2>
Fig. 21 is a schematic structural view of the safety switch of embodiment 2 of the present invention installed in a housing.
Fig. 22 is a schematic view of the installation position of the safety switch and the trip lever assembly according to embodiment 2 of the present invention.
This embodiment is basically the same as embodiment 1, except for the structure of the toggle part and the crank assembly in the control assembly. The method comprises the following specific steps: as shown in fig. 21, the toggle part 471 'of the safety switch 47' has a toggle piece 4711 'and a toggle lever 4712', and the toggle piece 4711 'is located on the side of the safety switch element 472' and is interlocked therewith. The linkage mode is as follows: one side of the safety switch element 472' is provided with a switch protrusion 4721', the toggle piece 4711' is provided with an activation end 47111', and when the activation end 47111' touches the switch protrusion 4721', the safety switch element 472' is triggered to be opened to generate an electric signal. An open groove 47112 'is provided at a side of the triggering end 47111', and the safety switching element 472 'breaks an electrical signal when the triggering end 47111' is separated from the switching protrusion 4721 'and the switching protrusion 4721' is aligned with the open groove 47112 'when the dial 4711' is moved.
As shown in fig. 22, the tap lever 4712 'has a long bar shape with one end bent, and is used to control the movement of the tap piece 4711'. The method comprises the following specific steps: the poke rod 4712' comprises a first poke end 47121' and a second poke end 47122', the end part of the first poke end 47121' is arranged close to the push end of the push member 43', and collision (scratch) can be generated in the rotation process of the push end; the end of the second driving end 47122' is located at the inner side of the driving piece 4711', a pin shaft 47123' is arranged at the connecting section where the first driving end 47121' and the second driving end 47122' are connected, an installation part for installing the pin shaft 47123' is arranged in a protruding manner in the rear cover plate 212' of the shell, and the driving rod 4712' is rotatably installed on the installation part through the pin shaft 47123 '. (the construction of the tap lever and its mounting structure to the housing are the same as those of embodiment 1).
As shown in fig. 22, when the pushing end of the pushing member 43' is rotated clockwise, once the pushing end scrapes against the first poking end 47121', the first poking end 47121' is forced to rotate inward, so that the second poking end 47122' pokes outward, hits the poking piece 4711', moves the poking piece 4711' outward, so that the triggering end 47111' leaves the switch protrusion 4721' and disconnects ' the safety switch element 472. A toggle return spring 47113' is arranged between the outer side of the toggle piece 4711' and the shell, when the pushing end is not in contact with the first toggle end 47121', the toggle return spring 47113' pushes the toggle piece 4711' inwards to return, and the first toggle end 47121' and the second toggle end 47122' also return in sequence. The outer side of the first poking end 47121' is provided with an inclined guide surface 471211' to facilitate the pushing end to collide with the first poking end 47121' when rotating.
The drive mechanism 40 also includes a curved rod assembly 50', the curved rod assembly 50' being used to push the paddle 4711 'into linkage with the safety switch element 472'. The curved bar assembly 50' has an outer curved bar 51' and an inner curved bar 52', the outer end of the outer curved bar 51 extending out of the housing 20 and the outer end protruding out of the muzzle mechanism, the inner end of the outer curved bar 51' being interlocked with the inner curved bar 52 '. As shown in fig. 22, the inner curved bar 52' has a short side 521' and a long side 522' which are perpendicular to each other, the outer side of the short side 521' contacts the inner end of the outer curved bar 51', and the long side 522' extends to the vicinity of the driver plate 4711' and is bent at the end toward the driver plate 4711' to form a touching section 5221'. A touch plate 47114 'is arranged on the shifting piece 4711' and close to the touch section 5221', an open groove 47112' is arranged between the touch plate 47114 'and the trigger end 47111', and a curved rod return spring 55 'is arranged on one side of the touch section 5221'.
The linkage of the crank assembly with the safety switch element 472' is as follows:
when the nail gun is used, the gun nozzle mechanism on the front side is firstly aligned to a target position needing to shoot nails, because the outer end of the outer curved rod 51 'protrudes out of the gun nozzle mechanism, when the outer end of the outer curved rod is propped against the target position, a reaction force can be generated on the outer curved rod 51', the outer curved rod 51 'moves towards one side of the nail gun, the inner end of the outer curved rod 51' can touch the short edge 521 'of the inner curved rod 52', so that the inner curved rod 52 'is pushed to move inwards, the outer curved rod 51' can enable the touch section 5221 'to be in contact with the touch plate 47114' on the shifting piece 4711 'in the moving process, the shifting piece 4711' is pressed towards one side of the safety switch element 472', so that the safety switch element 472' is opened to generate an electric signal, then a user presses the pressing part 461', the main switch element 462' is triggered to be opened to generate the electric signal, when the two switch elements are in the opening state, the motor is started, the power supply spring starts to impact and then the nails are ejected to realize the nail shooting. After the nail is driven, when the outer end of the outer curved bar 51 'is separated from the target portion, the curved bar return spring 55' drives the inner curved bar 52 'and the outer curved bar 51' to return. As in embodiment 1, the outer end of the outer curved bar 51 'is further provided with a protective cover 54', and the protective cover 54 'contacts the target site, so that the abrasion of the outer end of the outer curved bar 51' can be reduced, and the service life of the outer curved bar can be prolonged.
Effects and effects of the embodiments
According to the striker assembly in the above embodiment, the striker 49 is mounted between the striker 49 and the piston 41 by means of threaded connection, and this mounting is a detachable mounting means, so that when the striker 49 is worn and needs to be replaced, the striker 49 can be taken out and replaced by only detaching the bolt, which is very convenient, and the piston is not damaged, and the piston does not need to be replaced, thereby saving cost.
According to the energy storage assembly in the above embodiment, since the guide sleeve 481 is disposed between the guide rod 48 and the force supply spring 42, the guide sleeve 481 can not only guide the movement direction of the force supply spring 42, prevent the force supply spring 42 from bending and deforming in other directions when contracting, but also reduce the abrasion and friction force of the force supply spring 42 during movement, so that the force supply spring 42 has a longer service life, contracts more smoothly, and stores energy more rapidly.
According to the nail-shooting energy-storage control mechanism and the nail-shooting gun of the embodiment, the toggle part 471 of the safety switch 47 is provided with the plectrum 4711, the poking rod 4712 and the plectrum seat 4713, the mutual linkage mode among the plectrum 4711, the poking rod 4712, the plectrum seat 4713 and the pushing component 43 is adopted to play a role in opening the safety switch 47 to disconnect an electric signal, the nail-shooting energy-storage control mechanism belongs to a mechanical structure control mode, a controller is not required to be additionally arranged, the cost is saved, and the operation and control can be more stable.
According to the nail-shooting energy-storage control mechanism and the nail-shooting gun of the above embodiment, the pushing member 43 is provided, and the pushing member 43 is directly matched with the piston 41 and used for pushing the piston 41 to move towards the force-supplying spring 42, so that the force-supplying spring 42 can compress and store energy, and the pushing member 43 is not in direct contact with the striker 49, so that the influence on the movement of the piston 41 caused by the contact with the striker 49 is avoided, and the whole energy storage process is smoother and more stable.
In addition, the pushing member 43 has a pushing end facing the piston 41, the piston is urged to move by contacting with the pushing end of the piston 41 during the rotation of the pushing end, and the pushing end has a first pushing end 431 and a second pushing end 432, which can respectively perform a first stage energy storage and a second stage energy storage, so as to maximize the energy storage capacity of the force supply spring 42; meanwhile, the outer diameters of the first pushing end 431 and the second pushing end 432 are different, so that the maximum working stroke of the movement of the piston 41 can be obtained as much as possible by adjusting the outer diameter of the pushing end without changing the length of the abutting end of the piston 41, and the larger the working stroke is, the larger the amount of the force supply spring 42 is compressed, so that the larger energy can be obtained, and the gun nail can be ejected more powerfully and rapidly.
In the above embodiment, the pushing member 43 is designed to be in the shape of the crank 430, which is lighter than the structure such as a disc in the prior art, not only can save materials, but also can reduce energy consumption, so that the transmission effect is better.
The energy storage control mechanism for nail driving according to the above embodiment further comprises a control component, the control component comprises a main switch 46 and a safety switch 47, the two switches are connected in series and connected to the driving motor, so that the motor body 441 of the nail driving gun 10 can be directly controlled according to the nail driving electric signal and the safety electric signal generated by the main switch 46 and the safety switch 47, and the main switch 46 and the safety switch 47 are arranged in series, so that the motor body 441 can be controlled to be started only when the nail driving electric signal and the safety electric signal are received at the same time and both the two signals are effective, thereby performing nail driving. Because the nail-shooting energy storage control mechanism adopts a double-switch and double-safety design, the safety in the nail-shooting process is also ensured. Further, with the nail-firing energy-storage control mechanism of the above embodiment, the nail-firing gun 10 can start the safety switch through the curved lever assembly when it touches the target position, and automatically start energy storage when the main switch 46 is pressed, i.e. started, and keep in the energy-storage completion state, so that the user can directly discharge nails by pressing only one switch, and the operation is very convenient.
The above embodiments are merely illustrative of specific embodiments of the present invention, and the present invention is not limited to the description of the above embodiments. For example, in the implementation process, the unidirectional rotating component at the output end of the driving motor can be replaced by a unidirectional bearing from a ratchet-pawl structure, and the same purpose can be achieved.

Claims (10)

1. A firing pin assembly disposed in a nail gun having a housing for striking a nail in a nosepiece mechanism of the nail gun, comprising:
a piston movably disposed within the housing,
a striker detachably mounted to the piston for impacting the gun nail,
wherein, the piston is provided with the fixed part towards one side of rifle nail, the tip of firing pin passes through threaded connection on this fixed part.
2. The firing pin assembly of claim 1,
wherein the fixing part is provided with a linear socket along the horizontal direction and a fixing hole penetrating through the linear socket along the vertical direction,
the end part of the firing pin is inserted into the linear socket, and the end part of the firing pin is provided with a mounting hole corresponding to the fixing hole,
the striker is fixed to the fixing portion by a bolt or a screw passing through the fixing hole and the mounting hole.
3. An energy storage control mechanism disposed in a nail gun having a housing for controlling and driving the discharge of the impact of a nail of the nail gun, comprising:
the firing pin assembly is configured to be moved between,
an energy storage assembly for storing energy for and urging movement of the firing pin assembly, an
The control component is used for controlling the energy storage component to operate,
wherein the striker assembly is the striker assembly of claim 1 or 2.
4. The energy storage control mechanism of claim 3,
wherein, the energy storage subassembly has:
the guide rod is arranged in the shell through a fixed seat, and the piston is movably arranged on the guide rod;
the force supply spring is sleeved on the periphery of the guide rod, one end of the force supply spring is abutted against the piston and is pushed by the piston to carry out compression energy storage;
a pushing member having a pushing end facing the piston for pushing the piston toward the force supply spring to compress and accumulate the energy in the force supply spring, and
the driving motor is used for driving the pushing component to rotate;
the control assembly has:
a main switch having a pressing portion and a main switch element,
a safety switch having a toggle portion and a safety switch element,
the main switch, the safety switch and the driving motor are connected, and when the main switch element and the safety switch element generate electric signals, the driving motor operates.
5. The energy storage control mechanism of claim 4,
the guide sleeve is arranged on the periphery of the guide rod in a sleeved mode and located between the force supply spring and the guide rod, and the length of the guide sleeve is smaller than the length of the compressed force supply spring.
6. The energy storage control mechanism according to claim 4 or 5,
wherein, be provided with on the piston with the end of pushing mutually supporting pushes away the end to have:
a first push-against end extending from the piston along the nail-shooting direction of the nail-shooting gun,
a second pushing end extending from the piston toward the pushing member,
the pushing end has:
a first pushing end matched with the first pushing end,
the second pushing end is matched with the second abutting end, and the outer diameter of the second pushing end is smaller than that of the first pushing end.
7. The energy storage control mechanism of claim 6,
wherein the pushing member further has a crank including:
a first crank arm for mounting the first pusher end,
a second crank arm for mounting the second pusher end and having a length equal to the first crank arm,
an included angle is formed between the first crank arm and the second crank arm,
the first pushing end and the second pushing end are cylindrical and are respectively arranged at the outer ends of the first crank arm and the second crank arm,
the outer ends of the first crank arm and the second crank arm are arc-shaped, and the outer edge of the first pushing end protrudes out of the outer end of the first crank arm.
8. The energy storage control mechanism of claim 4,
the toggle part is provided with:
the poking sheet is used for being in contact with the contact point of the safety switch element to generate an electric signal;
one end of the shifting rod is linked with the pushing component, and the other end of the shifting rod is linked with the shifting sheet and used for pushing the shifting sheet to be disconnected from the safety switch element; and
the shifting piece seat is internally provided with a shifting piece return spring, one end of the shifting piece is abutted against the shifting piece return spring, and the other end of the shifting piece extends out of the shifting piece seat to be linked with the shifting rod;
the plectrum contains:
a contact plate for contacting a contact point of the safety switching element,
a toggle plate for contacting the toggle rod, an
When the touch point of the safety switch element is contacted with the contact plate, the safety switch element generates an electric signal; when the contact point of the safety switching element is separated from the contact plate, the safety switching element disconnects an electrical signal.
9. The energy storage control mechanism of claim 8, further comprising:
a crank assembly for urging the paddle in linkage with the safety switch element and having:
an outer curved rod, the outer end of which extends out of the gun nozzle mechanism of the nail gun, the inner end of which is linked with the shifting sheet and is used for enabling the contact plate to be in contact with the contact point of the safety switch element,
an inner curved bar, the outer end of which is linked with the outer curved bar, the inner end of which is combined with the shifting sheet seat,
and a curved bar return spring is arranged at one end of the inner curved bar, which is close to the outer curved bar.
10. A nail gun, comprising at least:
a shell, the interior of which is provided with a mounting cavity,
a muzzle mechanism mounted at the front end of the housing, an
The energy storage control mechanism is arranged in the mounting cavity,
wherein the energy storage control mechanism is the energy storage control mechanism according to any one of claims 3 to 9.
CN202222461507.XU 2022-09-15 2022-09-15 Firing pin assembly, energy storage control mechanism and nail gun Active CN218785542U (en)

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CN202222461507.XU CN218785542U (en) 2022-09-15 2022-09-15 Firing pin assembly, energy storage control mechanism and nail gun
US18/368,815 US20240091920A1 (en) 2022-09-15 2023-09-15 Energy storage and striking mechanisms and nail guns having same

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024055539A1 (en) * 2022-09-15 2024-03-21 台州市大江实业有限公司 Firing pin assembly, energy storage control mechanism, and nail gun

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024055539A1 (en) * 2022-09-15 2024-03-21 台州市大江实业有限公司 Firing pin assembly, energy storage control mechanism, and nail gun

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