Fastener driver

Abstract

The utility model relates to a fastener driver which comprises a driving blade, and the driving blade can move from a retraction position to a driving position so as to drive a fastener into a workpiece. The fastener auxiliary driver is used for driving the driving blade from the retraction position to the driving position, and the fastener auxiliary driver can move between a retraction state and a driving state; a trigger mechanism movable between a default position in which activation of the drive cycle is prohibited and a depressed position in which activation of the drive cycle is permitted; the driving mechanism is used for driving the fastener auxiliary driver to move between a retraction state and a driving state; the fastener driver is simple in structure, the structures of the whole fastener driver and the nailing gun are optimized, the structure is more reliable, high-speed continuous nailing can be achieved, use is safe, and assembling performance is good.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical technology, in particular to a fastener driver. Background Art

[0002] Nail guns are modern nail-shooting fastening technology products that can fire nails. Currently, the nail gun products on the market are mainly pneumatic nail guns, which are mainly composed of gun body, cylinder, switch assembly, piston, firing pin, firing pin locking device, nail mouth and nail box. The working principle of pneumatic nail guns is that the high-pressure gas generated in the cylinder is used as the power source. The high-pressure gas drives the firing pin in the nail gun cylinder to do hammering motion, and the nails in the nail slot are nailed into the object.

[0003] It can be seen from the search that the Chinese patent with application number 202310645018.6 discloses a powered fastener driver, including a driver blade, a lifting device, a nose piece, a cassette and a lamp. The driver blade is configured to be movable between an upper dead center position and a lower dead center position. The lifting device can be operated to move the driver blade from the lower dead center position toward the upper dead center position. When moving from the upper dead center position to the lower dead center position, the driver blade can extend through the nose piece. The cassette is configured to transfer each fastener into the nose piece. The cassette has a front side, an opposite rear side, and a lateral side extending between the front side and the rear side, and the front side is configured to face the workpiece during the driving of the fastener. The lamp is positioned adjacent to the lateral side of the cassette, closer to the front side than the rear side.

[0004] However, practice shows that the fastener driver disclosed in the above prior art has the disadvantages of insufficient power, slow continuous nailing speed and high empty-strike rate during the driving nailing process; and the structure of the above fastener driver is complicated, which brings inconvenience to use.

[0005] In view of the above problems, it is necessary to improve them. Utility Model Content

[0006] The utility model aims to overcome the defects in the prior art and provides a fastener driver which has a simple structure, a reasonable design, and is overall firm and can continuously nail at a relatively high speed.

[0007] In order to achieve the above objectives, the technical solution adopted by the utility model is: a fastener driver, including a driving blade, which can move from a retracted position to a driving position to drive the fastener into a workpiece; a fastener auxiliary driver, which is used to drive the driving blade from the retracted position to the driving position, and the fastener auxiliary driver can move between a retracted state and a driving state; a trigger mechanism, which can move between a default position and a pressed position, wherein in the default position, the driving cycle is prohibited from starting, and in the pressed position, the driving cycle is allowed to start; a driving mechanism, which is used to drive the fastener auxiliary driver to move between a retracted state and a driving state; the fastener auxiliary driver includes a limit seat and a bracket assembly; a first guide column is fixed between the limit seat and the bracket assembly; a compression spring is mounted on the first guide column; one end of the compression spring abuts against one end of the limit seat, and the other end of the compression spring abuts against the bracket assembly.

[0008] As a preferred solution of the utility model, the bracket assembly includes a base plate and a drive plate; the drive plate is vertically fixed on the base plate, the compression spring rests on the drive plate, and a first through hole is formed on the drive plate; the first guide column passes through the first through hole.

[0009] As a preferred solution of the utility model, a limiting sleeve is fixedly provided on one side of the driving plate close to the compression spring, and the compression spring passes through the limiting sleeve and abuts against the driving plate.

[0010] As a preferred solution of the utility model, the bracket assembly also includes a side plate arranged parallel to the driving plate, and a buffer block is arranged between the side plate and the driving plate; the side plate and the buffer block are sleeved and fastened to the first guide column.

[0011] As a preferred solution of the utility model, a first positioning plate is fixedly provided at the bottom of the base plate; the first positioning plate extends toward the driving mechanism and selectively engages with the driving mechanism.

[0012] As a preferred solution of the utility model, the driving mechanism includes a motor, a gear box and a driving assembly; the driving assembly includes a conveying shaft and a support plate; the support plate is equipped with a first deflection shaft and a second deflection shaft, and the first deflection shaft and the second deflection shaft are vertically spaced apart; the motor drives the conveying shaft to rotate, thereby driving the support plate to rotate.

[0013] As a preferred solution of the present utility model, the conveying shaft, the support plate, the first deflection shaft and the second deflection shaft are fixedly connected and integrally formed.

[0014] As a preferred solution of the present invention, the first deflection axis extends farther from the bracket assembly than the second deflection axis.

[0015] As a preferred solution of the utility model, guide plates are installed on the driving plate and the side plates, and the driving blades are located on the guide plates.

[0016] As a preferred scheme of the utility model, a limiting groove and a guide groove are formed on the guide plate; the guide groove is arranged along the length direction of the guide plate; a first protrusion and a second protrusion are formed on the top of the driving plate, the second protrusion is fixed on the first protrusion, and the second protrusion and the first protrusion are in a step-like structure, and a third protrusion is formed on the top of the side plate; the limiting groove on the guide plate is clamped on the third protrusion, the guide groove of the guide plate passes through the second protrusion and is located on the outside of the first protrusion, so that the guide plate moves along the guide groove, and a groove matched with the second protrusion is formed on the driving blade, and the driving blade is clamped on the driving plate; the compression spring pushes the driving plate and the side plate to move, thereby driving the guide plate and the driving blade to move, so that the driving blade drives the fastener into the workpiece.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model has a simple structure, optimizes the structure of the entire fastener driver and the nail gun, has a more reliable structure, can nail continuously at a higher speed, is safe to use, and has good assembly performance.

[0019] 2. The utility model is cleverly designed. By providing a fastener auxiliary driver, the structure of the entire fastener driver is more reasonable, and the cooperation between the fastener auxiliary driver and the driving mechanism is safer and more stable.

[0020] 3. The utility model uses a driving mechanism to drive the fastener auxiliary driver to drive the driving blade to move, so that the structure of the entire fastener driver is more compact and the design is reasonable. At the same time, it also realizes the rapid and continuous firing of the nail gun, with a compact structure, stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the nail gun of the utility model;

[0022] Figure 2 This is a front view of the nail gun of the utility model;

[0023] Figure 3 It is a schematic diagram of the structure of the utility model after removing the shell;

[0024] Figure 4 This is a diagram of the utility model in use after the shell is removed;

[0025] Figure 5 This utility model Figure 4 A partial enlarged view of the A direction;

[0026] Figure 6It is a structural schematic diagram of the fastener driver of the utility model;

[0027] Figure 7 It is a structural schematic diagram of the driving mechanism of the utility model;

[0028] Figure 8 It is a structural schematic diagram of the drive assembly of the utility model;

[0029] Fig. 9 It is a structural schematic diagram of the fastener driver of the utility model after the compression spring is removed;

[0030] Fig.10 It is a schematic diagram of the connection between the limit sleeve, the drive plate, the side plate and the buffer block of the utility model;

[0031] Fig.11 It is a structural schematic diagram of the bracket assembly of the utility model;

[0032] Fig.12 It is a structural schematic diagram of the guide plate of the utility model;

[0033] Fig.13 It is a structural schematic diagram of the driving blade of the utility model;

[0034] 1 , a first guide post 31 , a first guide column 32 , a first guide column 33 , a first guide column 34 , a first guide column 35 , a first guide column 36 , a second guide column 37 , a second guide column 38 , a second guide column 39 , a first guide column 38 , a second guide column 39 , a first guide column 39 , a first guide column 39 , a first guide column 39 , a first guide column 30 , a first guide column 31 , a second guide column 32 , a second guide column 33 , a first guide column 34 , a first guide column 35 , a first guide column 36 , a second guide column 37 , a second guide column 38 , a second guide column 39 , a first guide column 30 , a first guide column 31 , a second guide column 33 , a second guide column 34 ... DETAILED DESCRIPTION

[0035] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Example:

[0038] like Figure 6 As shown, the fastener driver provided in this embodiment includes a driving blade 2, which can move from a retracted position to a driving position to drive the fastener into a workpiece; a fastener auxiliary driver 3, which is used to drive the driving blade 2 from the retracted position to the driving position, and the fastener auxiliary driver 3 can move between a retracted state and a driving state; a trigger mechanism 4, which can move between a default position and a pressed position, wherein in the default position, the driving cycle is prohibited from starting, and in the pressed position, the driving cycle is allowed to start; a driving mechanism 5, which is used to drive the fastener auxiliary driver 3 to move between a retracted state and a driving state; the utility model has a simple structure, optimizes the structure of the entire fastener driver and the nail gun, has a more reliable structure, can continuously nail at a higher speed, is safe to use, and has good assembly performance.

[0039] like Fig.10 The figure is a schematic diagram of the connection between the limit sleeve, the drive plate, the side plate and the buffer block of the utility model; specifically, the fastener auxiliary driver 3 includes a limit seat 30 and a bracket assembly 34; a first guide column 31 is fixedly provided between the limit seat 30 and the bracket assembly 34; a compression spring 33 is assembled on the first guide column 31; one end of the compression spring 33 abuts against one end of the limit seat 30, and the other end of the compression spring 33 abuts against the bracket assembly 34; by setting the first guide column 31, the bracket assembly 34 slides left and right along the first guide column 31, thereby improving the sliding stability and safety of the bracket assembly 34.

[0040] like Fig.11 As shown, Fig.11 It is a structural schematic diagram of the bracket assembly of the utility model; the bracket assembly 34 includes a base plate 35 and a drive plate 37; the drive plate 37 is vertically fixed on the base plate 35, the compression spring 33 rests on the drive plate 37, and a first through hole 370 is formed on the drive plate 37; the first guide column 31 passes through the first through hole 370.

[0041] A limiting sleeve 36 is fixedly provided on one side of the driving plate 37 close to the compression spring 33, and the compression spring 33 passes through the limiting sleeve 36 and rests on the driving plate 37; by setting the limiting sleeve 36, the compression spring 33 close to the side of the driving plate 37 is sleeved on the limiting sleeve 36, and the limiting sleeve 36 can give the compression spring 33 an axial positioning, and enable the bracket assembly 34 to remain stable and not shake during the movement, thereby ensuring safety in use.

[0042] Among them, the bracket assembly 34 also includes a side plate 38 arranged parallel to the driving plate 37, and a buffer block 39 is arranged between the side plate 38 and the driving plate 37; the side plate 38 and the buffer block 39 are sleeved and fastened on the first guide column 31; by setting the buffer block 39, the bracket assembly 34 can have a deceleration process during each nailing process during the driving process of the driving mechanism 5, thereby reducing the noise of nailing.

[0043] A first positioning plate 301 is fixedly disposed at the bottom of the base plate 35 ; the first positioning plate 301 extends toward the driving mechanism 5 and selectively engages with the driving mechanism 5 .

[0044] like Figure 7 , which is a schematic diagram of the structure of the driving mechanism of the utility model; the driving mechanism 5 includes a motor 50 , a gear box 51 and a driving assembly 52 .

[0045] like Figure 8 As shown, Figure 8 Schematic diagram of the structure of the drive assembly of the utility model; the drive assembly 52 includes a conveying shaft 520 and a support plate 521; the support plate 521 is equipped with a first deflection shaft 522 and a second deflection shaft 523, and the first deflection shaft 522 and the second deflection shaft 523 are vertically spaced apart; the motor 50 drives the conveying shaft 520 to rotate, thereby driving the support plate 521 to rotate; in the present embodiment, the motor 50 is a brushed DC motor, which receives power from a battery pack 53, and the battery pack 53 is assembled in the housing 6, and the motor 50 can be configured as a brushless DC motor.

[0046] The conveying shaft 520, the support plate 521, the first deflection shaft 522 and the second deflection shaft 523 are fixedly connected and formed as one piece; the structural strength and overall firmness of the entire driving assembly 52 are improved, and the safety of use is further ensured.

[0047] The first deflection axis 522 extends farther from the bracket assembly 34 than the second deflection axis 523; a distance is left between the first deflection axis 522 and the second deflection axis 523. This solution can prevent the first deflection axis 522 from contacting the base plate 35 during the rotation of the driving assembly 52, thereby affecting the stability and safety of the entire nailing process.

[0048] A guide plate 21 is installed on the driving plate 37 and the side plate 38, and the driving blade 2 is located on the guide plate 21; when the motor 50 drives the entire driving assembly 52 to rotate, the first deflection shaft 522 located on the support plate 521 fits with the first positioning plate 301 and drives the bracket assembly 34 to move, when the first deflection shaft 522 is separated from the first positioning plate 301, the second deflection shaft 523 fits with the first positioning plate 301 and drives the bracket assembly 34 to move, so that the compression spring 33 is in a maximum compression state, when the second deflection shaft 523 is separated from the first positioning plate 301, at this time, the compression spring 33 pushes the driving plate 37 and the driving blade 2 to move, so that the driving blade 2 drives the fastener into the workpiece, and after the compression spring 33 releases its elasticity, the bracket assembly 34 returns to its initial position to prepare for the next subsequent nailing cycle.

[0049] like Figure 10-13 As shown, Fig.10 It is a schematic diagram of the connection between the limit sleeve, the drive plate, the side plate and the buffer block of the utility model; Fig.11 It is a structural schematic diagram of the bracket assembly of the utility model; Fig.12 It is a structural schematic diagram of the guide plate of the utility model; Fig.13 It is a structural schematic diagram of the driving blade of the utility model.

[0050] A limiting groove 22 and a guide groove 23 are formed on the guide plate 21; the guide groove 23 is arranged along the length direction of the guide plate 21; a first protrusion 372 and a second protrusion 373 are formed on the top of the driving plate 37, the second protrusion 373 is fixed on the first protrusion 372, and the second protrusion 373 and the first protrusion 372 are in a step-shaped structure, and a third protrusion 380 is formed on the top of the side plate 38; the limiting groove 22 on the guide plate 21 is clamped on the third protrusion 380, and the guide groove 23 of the guide plate 21 passes through the second protrusion 373 and is located on the outside of the first protrusion 372, so that the guide plate 21 moves along the guide groove 23, and a groove 20 adapted to the second protrusion 373 is formed on the driving blade 2, and the driving blade 2 is clamped on the driving plate 37; the compression spring 33 pushes the driving plate 37 and the side plate 38 to move, thereby driving the guide plate 21 and the driving blade 2 to move, so that the driving blade 2 drives the fastener into the workpiece;

[0051] Specifically, by setting the guide plate 21, which cooperates with the driving blade 2, the driving blade 2 is clamped on the driving plate 37, the guide plate 21 is clamped on the side plate 38, the guide groove 23 on the guide plate 21 moves along the first protrusion 372, and the compression spring 33 pushes the driving plate 37 and the driving blade 2 to move, so that the driving blade 2 drives the fastener into the workpiece; the utility model is cleverly designed, and the driving mechanism is used to drive the fastener to assist the driver in driving the driving blade to move, so that the structure of the entire fastener driver is more compact and the design is reasonable. At the same time, it also realizes the rapid and continuous firing of the nail gun, and the structure is compact, stable and reliable.

[0052] like Figure 1-5 As shown, a nail gun provided in this embodiment includes a shell 6, a fastener driver 100 assembled in the shell 6, and a first switch 10 is also assembled in the shell 6. When the first switch 10 is not triggered, the fastener driver stops moving; a magazine assembly 1 is detachably assembled at the bottom of the shell 6, and the magazine assembly 1 contains fasteners; a nail ejection mouth 7 is arranged at the front end of the magazine assembly 1, and the magazine assembly 1 is connected to the shell 6 through the nail ejection mouth 7, and the trigger mechanism 4 is located at the position of the nail ejection mouth 7.

[0053] The user loads nails into the magazine assembly 1 and operates the control mechanism to perform nailing. Specifically, only when the first switch 10 and the trigger mechanism 4 are activated at the same time, the entire mechanism can be activated and perform nailing, wherein the first switch 10 can be operated to start the drive cycle of the drive blade 2; the trigger mechanism 4 can move between a first position and a second position, in which the trigger mechanism 4 is prevented from moving to start the drive cycle, and in which the first switch 10 can move to start the drive cycle.

[0054] Specifically, the trigger mechanism 4 includes a trigger link 40, the bottom of the trigger link 40 is connected to a trigger block 43, and the top of the trigger link 40 is connected to a connector 41; the shell 6 includes an adjustable trigger mechanism 9 electrically connected to a controller 8, and a micro switch 42 is installed on the adjustable trigger mechanism 9; the trigger link 40 can be connected to the micro switch 42 on the adjustable trigger mechanism 9 through the connector 41.

[0055] During use, the trigger block 43 contacts the physical object that needs to be nailed, and causes the trigger link 40 to move up and down along the nail mouth 7 within the moving range. Since the trigger link 40 is fixedly connected to the connecting piece 41, when the trigger link 40 moves in the opposite direction of nailing, the connecting piece 41 is driven by the trigger link 40 to contact the micro switch 42 of the adjustable trigger mechanism 9, and the adjustable trigger mechanism 9 transmits the electrical signal to the controller 8 by being electrically connected to the controller 8. At the same time, the controller 8 is also electrically connected to the first switch 10, and the controller 8 determines the status of the first switch 10 and the trigger link 40, and then determines whether to nail.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0057] Although this article uses more of the figure marks in the figures: magazine assembly 1, drive blade 2, fastener auxiliary driver 3, trigger mechanism 4, drive mechanism 5, housing 6, nail ejector mouth 7, controller 8, adjustable trigger mechanism 9, first switch 10, groove 20, guide plate 21, limit groove 22, guide groove 23, limit seat 30, first guide column 31, compression spring 33, bracket assembly 34, bottom plate 35, limit sleeve 36, drive plate 37, side plate 38, buffer block 39, trigger link 40, connecting member 41, micro switch 42, trigger block 43, motor 50, gear box 51, drive assembly 52, battery pack 53, conveying shaft 520, support plate 521, first deflection shaft 522, second deflection shaft, first positioning plate 301, first through hole 370, first protrusion 372, second protrusion 373, third protrusion 380, fastener driver 100 and other terms, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; any additional limitations interpreted as these terms are contrary to the spirit of the present invention.

Claims

1. Fastener drivers, including a drive blade (2) movable from a retracted position to a drive position to drive a fastener into a workpiece; A fastener auxiliary driver (3), the fastener auxiliary driver (3) is used to drive the driving blade (2) from the retracted position to the driven position, and the fastener auxiliary driver (3) is movable between the retracted state and the driven state; a trigger mechanism (4) movable between a default position and a pressed position, wherein in the default position the drive cycle is prohibited from being initiated, and in the pressed position the drive cycle is permitted to be initiated; A driving mechanism (5), the driving mechanism (5) being used to drive the fastener auxiliary driver (3) to move between a retracted state and a driven state; Characterized in that: the fastener auxiliary driver (3) comprises a limit seat (30) and a bracket assembly (34); A first guide column (31) is fixedly provided between the limit seat (30) and the bracket assembly (34); a compression spring (33) is mounted on the first guide column (31); one end of the compression spring (33) abuts against one end of the limit seat (30), and the other end of the compression spring (33) abuts against the bracket assembly (34).

2. The fastener driver according to claim 1, characterized in that: The support assembly (34) comprises a base plate (35) and a drive plate (37); the drive plate (37) is vertically fixed on the base plate (35); the compression spring (33) abuts against the drive plate (37); a first through hole (370) is formed on the drive plate (37); and the first guide column (31) passes through the first through hole (370).

3. The fastener driver according to claim 2, characterized in that: A limiting sleeve (36) is fixedly provided on one side of the driving plate (37) close to the compression spring (33), and the compression spring (33) passes through the limiting sleeve (36) and abuts against the driving plate (37).

4. The fastener driver according to claim 2, characterized in that: The bracket assembly (34) further comprises a side plate (38) arranged in parallel with the driving plate (37), a buffer block (39) being arranged between the side plate (38) and the driving plate (37); the side plate (38) and the buffer block (39) are sleeved and fastened to the first guide column (31).

5. The fastener driver according to claim 2, characterized in that: A first positioning plate (301) is fixedly provided at the bottom of the base plate (35); the first positioning plate (301) extends towards the driving mechanism (5) and selectively engages with the driving mechanism (5).

6. The fastener driver according to claim 1 or 5, characterized in that: The driving mechanism (5) comprises a motor (50), a gear box (51) and a driving assembly (52); the driving assembly (52) comprises a conveying shaft (520) and a support plate (521); a first deflection shaft (522) and a second deflection shaft (523) are mounted on the support plate (521), and the first deflection shaft (522) and the second deflection shaft (523) are vertically spaced apart; the motor (50) drives the conveying shaft (520) to rotate, thereby driving the support plate (521) to rotate.

7. The fastener driver according to claim 6, characterized in that: The conveying shaft (520), the support plate (521), the first deflection shaft (522) and the second deflection shaft (523) are fixedly connected and integrally formed.

8. The fastener driver of claim 7, wherein: The first deflection axis (522) extends further from the bracket assembly (34) than the second deflection axis (523).

9. The fastener driver of claim 4, wherein: A guide plate (21) is mounted on the driving plate (37) and the side plate (38), and the driving blade (2) is located on the guide plate (21).

10. The fastener driver of claim 9, wherein: The guide plate (21) is formed with a limit groove (22) and a guide groove (23); the guide groove (23) is arranged along the length direction of the guide plate (21); a first protrusion (372) and a second protrusion (373) are formed on the top of the driving plate (37); the second protrusion (373) is fixed on the first protrusion (372), and the second protrusion (373) and the first protrusion (372) are in a step-shaped structure; a third protrusion (380) is formed on the top of the side plate (38); The limiting groove (22) on the guide plate (21) is clamped on the third protrusion (380); the guide groove (23) of the guide plate (21) passes through the second protrusion (373) and is located outside the first protrusion (372), so that the guide plate (21) moves along the guide groove (23); a groove (20) adapted to the second protrusion (373) is formed on the driving blade (2); the driving blade (2) is clamped on the driving plate (37); the compression spring (33) pushes the driving plate (37) and the side plate (38) to move, thereby driving the guide plate (21) and the driving blade (2) to move, so that the driving blade (2) drives the fastener into the workpiece.

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