Nail gun

Abstract

An electric nailing tool, which relates to the technical field of pneumatic tools, and mainly solves the problems of how to improve the user experience, improve the stability of nail feeding, and reduce the installation difficulty. In a nail gun, a nail pushing holder (3a) is hinged to a nail feeding rod (3) inserted into a stop portion (2d1), and by means of left-to-right movement of a pushing rod (4) on a reduction mechanism (2e) or by means of a driving member, the nail pushing holder (3a) drives a downward-pressing member (3b) on the nail feeding rod (3) to move back and forth, thereby completing nail feeding. Moreover, by placing a main electric motor (7) and a power battery box (8) along an axis of symmetry, the overall center of gravity of the nail gun is lowered, thereby improving the use experience; and the main electric motor (7) is connected to the reduction mechanism (2e) by means of a transmission shaft (7a) and an angle compensation structure (7b), thereby reducing installation errors and the impact caused by shocks during nailing.

Description

A nail gun Technical Field

[0001] The present invention relates to the technical field of nailing tools, in particular to a nail gun, and more particularly to a nail gun using a coiled nail magazine. Background Art

[0002] Nailing tools are widely used in furniture production. Usually, a motor or high-pressure gas is used to drive the reciprocating movement of the striker to drive coil nails, flat-head nails, and U-shaped nails into the workpiece to complete the connection between the two parts. After the nailing is completed, the spring located in the nail magazine drives the nail upward, thereby completing the nailing and preparing for the next nailing cycle. Among them, since the coil nails are supplied by chain, the coil nails are uniformly arranged in the nail box below the nail outlet.

[0003] In order to complete the nailing, a power fastener driver is provided in the prior art, which drives the lever to swing back and forth through a cam to drive the feed arm to move up and down, and pivot under the interference of the nail, cooperating with the front end to complete the nailing. However, this solution uses multiple torsion springs and multiple connection methods, and the structure is relatively complex, so the stability is poor. In addition, the battery is set at the bottom of the motor, the center of gravity is offset, and fatigue is prone to occur after long-term use. In addition, the drive shaft and the motor are directly connected to the lifting part, and the installation accuracy and coaxiality of the drive shaft are required to be high. Technical issues

[0004] How to improve user experience, nailing stability and reduce installation difficulty. Technical Solutions

[0005] Among them, in order to improve user experience, the present invention provides the following technical solution that can complete the cycle of autonomous nailing: a nail gun, comprising a shell and a cylinder body located in the shell, a cylinder mounting seat and a nail-out part, the nail-out part comprising a nail-out mouth and a nail-feeding channel located below the nail-feeding mouth, a firing pin being provided in the cylinder body and passing through the cylinder mounting seat and the nail-feeding mouth in sequence, characterized in that a blocking part is provided on one side of the nail-feeding channel, the blocking part is sequentially provided with a reset part, a lower pressing part and a nail-pushing clip that can cooperate with the nail, the nail-pushing clip and the lower pressing part are connected to the lower pressing part through an upper nail rod arranged obliquely to the nail, the two ends of the reset part respectively abut against the blocking part and the upper nail rod, a push rod is provided below the cylinder mounting seat at an acute angle to the lower pressing part, when the firing pin moves in the opposite direction of nailing, the push rod moves along the nailing direction, and drives the upper nail rod and the nail-pushing clip downward to move downward through the lower pressing part until the push rod stops moving, and the reset part drives the lower pressing block and the nail-pushing clip upward to move through the upper nail rod.

[0006] Among them, the present application mainly drives the nail pushing clamp downward by the nailing rod, thereby completing the separation of the nail pushing clamp from the nail, and cooperates with the next nail after moving downward, and then pushes the above nail upward through the reset member to complete the nailing process, wherein one end of the nailing rod is hingedly connected to the nail pushing clamp, and the nailing rod and the lower pressure member on the nailing rod are both inclined to the nail, to avoid the shaking generated during the nailing process from pushing open the nail pushing clamp hinged only to the nailing rod, resulting in it being unable to nail, and when the firing pin is reset, the downward movement of the nailing rod and the nailing are completed by the pushing rod and the reset member, thereby improving the nailing efficiency, and the lower pressure member is arranged between the reset member and the nail pushing clamp, so as to improve the integration while ensuring that normal nailing can be completed, and the structure is simple and stable.

[0007] To complete nailing, the present application also provides another nail gun, comprising a shell and a cylinder body located in the shell, a cylinder mounting seat and a nail-out part, the nail-out part comprising a nail-out mouth and a nail box located below the nail-out mouth, the nail box and the nail-out mouth being connected through a nail feeding channel, a firing pin is provided in the cylinder body which can pass through the nail feeding mouth and the cylinder mounting seat in sequence to drive the nail out, characterized in that a blocking part, an upper nail rod and a nail pushing clamp are provided on one side of the nail feeding channel, the nail feeding channel and the upper nail rod are both inclined relative to the firing pin, one end of the upper nail rod is provided with a hinged part hingedly connected to the nail pushing clamp, the other end passes through the blocking part and forms a downward pressing piece, the outer sleeve of the upper nail rod is provided with a reset part, the two ends of the reset part respectively abut against the lower end surface of the blocking part and the hinged part, a driving part is provided on one side of the nail feeding channel, and the driving part drives the upper nail rod to move downward through the downward pressing piece.

[0008] The present application is the same as the previous scheme, and both use an obliquely arranged nail rod to drive the nail pushing clamp to complete nailing, wherein one end of the nail rod passes through the blocking part and forms a lower pressure piece, and the driving part drives the nail rod to move by rotation, and the reset piece is sleeved on the nail rod, and the two ends are respectively against the blocking part and the hinge part, so as to further increase the moving distance of the nail pushing clamp. It is only necessary to manually pull the lower pressure piece to the lowest position, and then embed the coiled nail into the nail embedding groove and then release the lower pressure piece. There is no need to put one end of the coiled nail into the nail outlet mouth first, and then match the nail located below with the nail pushing clamp. While ensuring that normal nailing can be completed, the integration is improved, and the structure is simple and the stability is high.

[0009] In order to reduce the impact of the impact generated during the nailing process on the connecting parts and improve the grip feel, the technical solution of the present application also provides a nail gun, including a shell, a cylinder body and a nail-out part located in the shell, one end of the cylinder body is connected to the nail-out part through a cylinder mounting seat, a firing pin is provided in the cylinder body, and the firing pin passes through the cylinder mounting seat and the nail-out part in turn to drive the nail out, and a lifting part and a reduction mechanism arranged parallel to the firing pin are provided on one side of the cylinder mounting seat, characterized in that a handle grip is provided on the shell, and a main motor located at the bottom is provided in the handle grip, the main motor is connected to the lifting machine through a reduction mechanism, a transmission shaft is connected to the main motor, the transmission shaft is covered in the handle grip and coincides with the central axis of the handle grip, and the reduction mechanism is connected to the transmission shaft through an angle compensation structure.

[0010] While the handle grip is tilted, the main motor and the reduction mechanism that controls the rotation of the lifting part are connected to the angle compensation structure through the transmission shaft. While ensuring that the lifting part can work normally, the angle compensation structure reduces the impact generated after nailing on the connection between the main motor and the reduction mechanism, thereby improving the reliability of the connection and reducing the coaxiality of the transmission shaft and the impact on the nail gun caused by large installation errors.

[0011] In order to avoid the weight imbalance of the nailing tool affecting the user experience, the present application also provides a nail gun, comprising a horizontally arranged strip shell, a nailing body arranged along the strip direction in the strip shell, and a nailing groove provided at the front end of the nailing body, characterized in that the middle part of the strip shell has a vertically arranged and strip-shaped handle grip, and a symmetry axis arranged along the length direction of the strip shell in the middle of the handle grip, a nail box located at the front end of the middle part of the handle is arranged on the symmetry axis, and the nail box is connected below the nail ejection mouth, and a main motor and a power battery box located in front of the main motor are provided in the bottom of the handle grip below the symmetry axis, the main motor and the power battery box are lower than the bottom of the nail box, and with the symmetry axis as the center, the power battery box and the main motor can form a counterweight relative to the weight in the strip shell after being arranged side by side front and back.

[0012] As the firing pin is driving a nail, the piston at one end of the firing pin will collide with the cylinder mounting seat. If the center of gravity of the nail gun is upward, the weight of the upper end of the nail will be further increased by the influence of the piston during the nailing process. In this application, the power battery box and the main motor are arranged along the length direction of the symmetry axis, and the power battery box and the main motor are arranged side by side to form a counterweight, and a nail box is arranged on the symmetry axis, so that the weight of the nail gun is concentrated on the symmetry axis. By lowering the center of gravity so that it is located on the handle grip, the impact of the movement of the firing pin during use is reduced, thereby improving the feel of use. Beneficial effects

[0013] 1. By setting the nailing rod obliquely relative to the nail and making it hingedly connected only to the nail pushing clip, the nail pushing clip is prevented from being separated from the movable groove during the nailing process, which affects the normal use of the nail gun.

[0014] 2. By placing the center of gravity, the impact of the striker on the user's hand during nailing is reduced.

[0015] 3. By connecting the main motor and the reduction mechanism through the angle compensation structure and the transmission shaft, the assembly difficulty and the impact on the connection position during the nailing process are reduced.

[0016] 4. By placing the lower pressure piece downward, the moving distance is increased to facilitate the installation of nails. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a left side schematic view of the first embodiment;

[0018] FIG2 is a schematic cross-sectional view of the first embodiment, which does not include the bar-shaped housing;

[0019] FIG3 is an exploded schematic diagram of the cylinder mounting base, the speed reduction mechanism, and the nail ejection portion;

[0020] FIG4 is a schematic front view of the nail-extracting portion in the first embodiment;

[0021] FIG5 is a schematic top view of the nail-extracting portion in the first embodiment;

[0022] FIG6 is a top view of the process of pushing the nail clip downward in the first embodiment

[0023] 7 is a schematic left view of the first embodiment of the nail rod before pushing the nail clamp to nail;

[0024] FIG8 is a left side schematic diagram of the nail pusher clamp after the nail is pushed by the nail pusher rod in the first embodiment;

[0025] 9 is a schematic left view of the second embodiment of the nail rod before pushing the nail clamp to nail;

[0026] 10 is a schematic left view of the second embodiment of the nail rod after pushing the nail push clamp nail;

[0027] FIG11 is a schematic front view of the upper nail rod before pushing the nail push clamp in the third embodiment;

[0028] FIG12a is a left side schematic diagram of the nail-loading rod before pushing the nail-pushing clamp to load the nail in the third embodiment.

[0029] FIG12b is a right side schematic diagram of the nail pusher pushing the nail into the nail pusher clamp in the third embodiment;

[0030] 13 is a schematic front view of the fourth embodiment of the nail rod before pushing the nail clamp;

[0031] FIG14a is a left side view of the nailing process of the nailing rod pushing the nail pushing clamp in the fourth embodiment

[0032] FIG14b is a right side schematic diagram of the nailing process of the nailing rod pushing the nail pushing clamp to install the nail in the fourth embodiment;

[0033] 1. Housing; 1a. Handle grip; 2. Nail driving body; 2a. Cylinder; 2a1. Strike pin; 2b. Cylinder mounting seat; 2b1. Lifting part; 2c. Nail ejector; 2c1. Nail ejector nozzle; 2c2. Nail feeding channel; 2c2a. Nail ejector guard; 2c2b. Movable plate; 2c3. Nail box; 2d. Movable groove; 2d1. Blocking part; 2b2. Support plate; 2e. Speed ​​reduction mechanism; 2e1. Driving wheel; 2e2. Driven wheel; 2e2a. Stop pin; 2e2b. Main bevel gear; 2e3. Cover; 2e3a. Opening; 2e4. Bottom shell; 2f. Cylinder cover; 2f1. Inflatable structure; 2f2. Deflation structure; 3. Nail-up rod; 3a. Nail-pushing clamp; 3a1. Nail-embedding groove; 3b. Pressing member; 3b1. Pressing slope; 3b2. Swinging plate; 3b2a. Pushing plate; 3b3. Blocking block; 3b4. Connecting part; 3b5. Rack; 3c. Resetting member; 3d. Hinge part; 4. Pushing rod; 4a. Rod body; 4a1. Strip groove; 4a2. Limiting strip hole; 4a3. Limiting column; 4b. Pushing part; 4b1. Pushing block, 5. From bevel gear; 6. Nail-up motor; 6a. Incomplete gear; 7. Main motor; 7a. Transmission shaft; 7b. Angle compensation structure; 7b1. Intermediate part; 8. Power battery box. Modes for Carrying Out the Invention

[0034] Example 1

[0035] As shown in Figure 1, a nail gun includes a strip-shaped shell 1 and a nail gun main body located in the strip-shaped shell 1. The nail gun main body is provided with a nail-out portion 2c, a cylinder mounting seat 2b and a cylinder body 2a in sequence from bottom to top. The cylinder mounting seat 2b is located between the nail-out portion 2c and the cylinder body 2a, and a lifting portion 2b1 is provided on one side of the cylinder mounting seat 2b. A speed reduction mechanism 2e and a main motor 7 are provided below the lifting portion 2b1. The main motor 7 is tilted relative to the axis of the cylinder body 2a and is connected to the speed reduction mechanism 2e and the angle compensation structure through a transmission shaft 7a. The nail-out portion 2c includes a nail-out mouth 2c1 and a nail feeding channel 2c2 and a nail box 2c3 located below the nail-out mouth 2c1. A power battery box 8 is provided below the nail box 2c3. The main motor 7 The deceleration mechanism 2e is located at the rear end of the power battery box 8 and the nail box 2c3. An upper nail rod 3 is provided on the nail feeding channel 2c2, and a lower pressure piece 3b and a nail pushing clamp 3a are provided on the upper nail rod 3. A reset piece 3c is provided between the lower pressure piece 3b and the blocking part 2d1 on the nail feeding channel 2c2. The deceleration mechanism 2e includes a cover shell 2e3, and a pushing part 4b is passed through one end of the cover shell 2e3. The pushing part 4b is placed opposite to the lower pressure piece 3b on the lower pressure piece 3b. The nail pushing clamp 3a is connected to one end of the upper nail rod 3. The nail feeding channel 2c2 and the transmission shaft 7a are both inclined relative to the central axis of the cylinder body 2a, and form an acute angle of 30° to 80°. Among them, in this embodiment, the inclination angle of the transmission shaft 7a and the nail feeding channel 2c2 is 60°.

[0036] Among them, the motor and the reduction mechanism 2e are connected to the angle supplement mechanism through the transmission shaft 7a, which ensures that the motor can operate normally within a certain angle range, reducing the probability that the motor will shake and the lifting part 2b1 will not work normally due to a large impact during the nailing process. The transmission shaft 7a is used to connect the angle supplement structure to the motor, thereby further reducing the size of the holding position of the nail gun, thereby improving the user experience.

[0037] The middle of the strip-shaped housing 1 has a vertically arranged strip-shaped handle grip 1a, with the middle of the handle grip 1a as the axis of symmetry. A nail box 2c3 is arranged at the front end of the middle portion of the handle on this axis of symmetry. The nail box 2c3 is connected below the nail ejection nozzle 2c1. A main motor 7 and a power battery box 8 located in front of the main motor 7 are provided at the bottom of the handle grip 1a below the axis. The main motor 7 and the power battery box 8 are lower than the bottom of the nail box 2c3. With the axis of symmetry as the center, the power battery box 8 and the main motor 7 are arranged side by side to form a counterweight relative to the weight inside the strip-shaped housing 1. This adjusts the center of gravity of the nail gun to this axis, reducing fatigue during long-term use and improving the user experience. The axis of symmetry is a hypothetical axis, but it is actually the symmetry line of the nailing device during use.

[0038] As shown in Figure 2, a cross-sectional view of the nailing process, a push piston is provided in the cylinder body 2a, and a striker 2a1 is provided on one side of the push piston. One end of the striker 2a1 passes through the cylinder mounting seat 2b and the nail-out portion 2c in sequence to drive the nail out. The other side of the push piston cooperates with the cylinder wall of the cylinder body 2a to form a power chamber, and one end of the cylinder body 2a is connected to the cylinder mounting seat 2b, and the other end cover is provided with a cylinder cover 2f. The cylinder cover 2f is provided with an air filling port and an air release structure 2f2. The speed reduction mechanism 2e includes a cover shell 2e3 and a bottom shell. Three mutually meshing drive gears are provided between the cover shell 2e3 and the bottom shell. The drive gear It includes a driving wheel 2e1, a driven wheel 2e2 and an idler wheel located between the driving wheel 2e1 and the driven wheel 2e2. The main motor 7 is connected to the driving wheel 2e1 through a transmission shaft 7a and an angle compensation structure. The lifting part 2b1 is connected to the driven wheel 2e2. In this embodiment, the angle compensation structure 7b is composed of an intermediate piece 7b1 and two hinged shafts connected to the driving wheel 2e1 and the motor respectively. The two hinged shafts are connected through the intermediate piece 7b1. As an alternative, a ball head is used as a connecting piece, and one end of the transmission shaft is hingedly connected to the ball head to transmit the transmission, etc., so as to complete the transmission under a certain angular displacement. In addition, the present application can also be connected to the hinged piece through a fixing piece. The transmission shaft 7a on the handle gripping part 1a and the nail box 2c3 are tilted relative to the striker 2a1.

[0039] During factory inspection, the power chamber in the cylinder body 2a is first inflated through the inflation port, and then the main motor 7 drives the lifting part 2b1 connected to the driven wheel 2e2 to rotate through the driving wheel 2e1 in the reduction mechanism 2e, and drives the firing pin 2a1 to move toward the cylinder head 2f through the lifting part 2b1 until the piston on the firing pin 2a1 is reset. During the reset process, if the internal pressure is too high, it will be discharged through the venting structure 2f2 until the appropriate pressure is reached.

[0040] The handle grip portion 1a is tilted relative to the firing pin, and the transmission shaft is driven to rotate by the main motor 7, and has a certain rotational inertia during the rotation process. The transmission shaft 7a is located exactly on the handle grip portion and is tilted, which is the same as the user's holding method during use, thereby improving the feel of using the nail gun.

[0041] As shown in Figures 3 and 4, the nail-feeding portion 2c includes a nail box 2c3 and a nail-feeding channel 2c2. The nail-feeding channel 2c2 includes a nail-feeding guard plate 2c2a and a movable plate 2c2b located on the other side of the nail-feeding guard plate 2c2a. One end of the coiled nail is located in the nail box 2c3, and the other end is clamped between the movable plate 2c2b and the nail-feeding guard plate 2c2a. A snap-fit ​​pin is provided at one end of the movable plate 2c2b. A movable groove 2d, a blocking portion 2d1 and a support plate 2b2 located on one side of the movable groove 2d are provided on the nail-feeding guard plate 2c2a. The nail channel 2c2 is connected to the outside world through the movable groove 2d, the blocking part 2d1 is located at one end of the movable groove 2d, the support plate 2b2 is vertically arranged with the blocking part 2d1, and the support plate 2b2 is parallel to the center line of the movable groove 2d. The other side of the nail guard 2c2a is provided with an upper nail rod 3 whose axis is parallel to the support plate 2b2. One end of the upper nail rod 3 is hinged with a nail pushing clamp 3a, and the other end is sleeved with a reset member 3c. In this embodiment, the reset member 3c is a spring, and a downward pressure is provided between the nail pushing clamp 3a and the reset member 3c. Part 3b, the speed reduction mechanism 2e below the lifting part 2b1 includes a cover 2e3, a bottom shell 2e4 and a driving gear located between the cover 2e3 and the bottom shell 2e4. An opening 2e3a is provided at one end of the cover 2e3. A stop pin 2e2a is provided on the driven wheel 2e2 in the driving gear. A push rod 4 is provided between the cover 2e3 and the driving gear. The push rod 4 includes a rod body 4a and a push portion 4b. The rod body 4a is provided with a strip groove 4a1 located in the middle and position-limiting strip holes 4a located on both sides of the strip groove 4a1. 2. A limiting column 4a3 is provided on the limiting strip hole 4a2, and a limiting plate is provided at the lower end of the limiting column 4a3. The limiting plate contacts the plane below the limiting strip hole 4a2, and the pushing portion 4b is located at one end of the rod body 4a. Both the pressing member 3b and the pushing portion 4b are provided with inclined surfaces, and the two inclined surfaces are arranged opposite to each other, of which the pressing inclined surface 3b1 is located at the end of the pressing member 3b, and the movable groove 2d, the supporting plate and the blocking portion 2d1 are all inclined relative to the striker 2a1. In this embodiment, the pushing portion 4b is a push block 4b1.

[0042] As shown in Figure 5, the coiled nail is clamped between the nail guard plate 2c2a and the movable plate 2c2b, and the nail guard plate 2c2a is provided with a clamping portion for the clamping pin to pass through, and the other end of the movable plate 2c2b is clamped and connected to the nail guard plate 2c2a through the clamping pin, forming a nail feeding channel 2c2 for accommodating and clamping nails, and the nail guard plate 2c2a is provided with a movable groove 2d for accommodating the nail push clamp 3a, and the movable groove 2d and the upper nail rod 3 are relative to the nail mouth 2c1 is set at an angle, and one side of the lower pressing piece 3b is abutted against the support plate 2b2 on the nail-exiting guard plate 2c2a, and the inclined surface on the other side is arranged opposite to the inclined surface of the pushing portion 4b, wherein the nail pushing clamp 3a located at one end of the upper nail rod 3 is provided with a nail groove for accommodating the rolled nail, and the other end of the upper nail rod 3 passes through the blocking portion 2d1 on the nail-exiting guard plate 2c2a, and the two ends of the reset piece 3c mounted on one end of the upper nail rod 3 are respectively abutted against the blocking portion 2d1 and the bottom surface of the lower pressing piece 3b.

[0043] As shown in Figures 6 and 7, the housing 2e3 and the bottom housing cooperate to form an opening 2e3a. The rod body 4a of the push rod 4 passes through the opening 2e3a and is connected to the push portion 4b. One end of the limit post 4a3 is fixed to the housing 2e3. When the main motor 7 drives the driven pulley 2e2 to rotate via the driving pulley 2e1 and the idler pulley, the stop pin 2e2a rotates around the axis of the driven pulley 2e2. At the same time, the stop pin 2e2a abuts against the side wall of the strip groove 4a1 on the rod body 4a, driving the push portion 4b forward. The inclined surface on the push portion 4b contacts the inclined surface on the lower pressure member 3b, thereby driving the nail push clamp 3a downward via the upper nail rod 3. During the downward movement of the nail push clamp 3a, one side of the nail push clamp 3a interferes with the next coiled nail. Since the nail push clamp 3a is hingedly connected to the upper nail rod 3, the nail push clamp 3a folds outward around the hinge portion 3d.

[0044] As shown in Figure 8, when the next coil nail enters the nail groove 3a1, one side of the nail groove 3a1 is embedded in the gap between the two coil nails, the stop pin 2e2a on the driven wheel 2e2 is separated from the strip groove 4a1 on the rod body 4a, and the reset part 3c pushes the nail rod 3 and the nail pushing clamp 3a upward through the lower pressure part 3b, thereby completing the nailing process.

[0045] This application mainly drives the lifting part 2b1 to rotate through the reduction mechanism 2e by the motor, thereby completing the reset of the firing pin 2a1. By setting a stop pin 2e2a on the driven wheel 2e2 connected to the lifting part 2b1, the pushing part 4b on the pushing rod 4 is driven to move back and forth, so that the inclined surface on the pushing part 4b and the inclined surface on the pressing part 3b abut against each other, controlling the downward movement of the upper nail rod 3, and making the lower end face of the nail pushing clamp 3a interfere with the next coil nail, causing it to fold outward until the coil nail enters the nail embedding groove 3a1 in the middle of the nail pushing clamp 3a, and the side groove wall of the nail embedding groove 3a1 is embedded in the distance between the two coil nails. The spring pushes the coil nail upward through the upper nail rod 3 and the nail pushing clamp 3a, thereby completing the nailing. Example 2

[0046] As shown in FIG9 and FIG10, as an alternative solution, its basic working principle is the same as that of the first embodiment, that is, the driving spur gear drives the push rod 4 to move back and forth to control the push nail clamp 3a to push the nail. The difference lies in the structural change of the lower pressing member 3b, which is as follows:

[0047] A reciprocatingly swinging pressing piece 3b is hinged on the nail-pulling guard plate 2c2a, wherein the pressing piece 3b is a swinging plate 3b2, and one end of the pressing piece 3b is provided with a push plate 3b2a that can abut against the pushing portion 4b, and the push plate 3b2a is provided with an inclined surface arranged opposite to the opening 2e3a of the speed reduction mechanism 2e. The pressing piece 3b in the upper nail rod 3 is a pin shaft, and the other end of the pressing piece 3b has a movable hole for the pin shaft to move back and forth. The pressing piece 3b is hingedly connected to the nail-pulling guard plate 2c2a, and the part where the push plate 3b2a abuts against the pushing portion 4b is higher than the hinged position of the pressing piece 3b and the nail-pulling guard plate 2c2a.

[0048] Its working principle is basically the same as that of Example 1, except that: when the driving spur gear drives the push rod 4 to move and contacts the push plate 3b2a, it pushes the push plate 3b2a to move along the moving direction of the striker 2a1, wherein, since the swing plate 3b2 is hingedly connected to the nail-pulling guard plate 2c2a through a hinge shaft, when pushing the push plate 3b2a, the end of the swing plate 3b2 with the movable hole swings downward with the hinge shaft as the center, and at the same time, the nail rod 3 and the nail pushing clamp 3a are driven downward by the pin shaft in the movable hole until the stop pin 2e2a is disengaged from the strip groove 4a1 on the push rod 4, and the reset part 3c abutting against the blocking part 2d1 on the nail-pulling guard plate 2c2a pushes the nail rod 3 to move upward, and at the same time, the push plate 3b2a is driven to swing and reset through the pin shaft, and the push rod 4 is pushed to reset, in preparation for the next nailing. Example 3

[0049] As an alternative solution, the basic principle is the same as that of the first embodiment, in which the driving spur gear on the speed reduction mechanism 2e is used to control the vertical movement of the nailing rod 3 for nailing. However, compared with the first embodiment, the third embodiment uses a bevel gear to drive the nailing rod 3 to move up and down, as follows:

[0050] A main bevel gear 2e2b and a slave bevel gear 5 are arranged below the driving spur gear connected to the lifting part 2b1. One side of the slave bevel gear 5 is meshed with the main bevel gear 2e2b, and the other side is provided with a stop pin 2e2a. One end of the upper nail rod 3 passes through the blocking part 2d1 on the nail guard 2c2a and forms a lower pressure piece 3b, and the stop pin 2e2a is arranged on the other side of the slave bevel gear 5 and contacts the blocking block 3b3 on the lower pressure piece 3b. The blocking block 3b3 is connected to the upper nail rod 3 through the connecting part 3b4. The upper nail rod 3 is tilted to the firing pin 2a1 and forms an acute angle of 30° to 80°. Among them, in this embodiment, the inclination angle of the transmission shaft 7a and the nail feeding channel 2c2 is 60°, and the axis of the upper nail rod 3 is tangent to the pitch circle of the slave bevel gear 5.

[0051] Its basic principle is basically the same as that of Example 1, with the difference being that: when the driving spur gear drives the elevator to rotate and thus completes the reset of the striker 2a1, the main bevel gear 2e2b located below the driving spur gear drives the slave bevel gear 5 to rotate, thereby causing the stop pin 2e2a located on the other side to rotate around the axis of the slave bevel gear 5. During this process, the stop pin 2e2a contacts the pushing surface on the lower pressure piece 3b, and drives the lower pressure piece 3b to move downward, thereby driving the upper nail rod 3 to move downward, until the stop pin 2e2a disengages from the lower pressure piece 3b, and the reset piece 3c pushes the upper nail rod 3 to move upward, completing a nail changing process. Example 4

[0052] As another alternative, the basic principle is substantially the same as that of the first embodiment, both of which complete the nailing process of the coil nail by driving the driving member to move up and down. The difference is that the fourth embodiment uses an incomplete gear 6a to drive the nailing rod 3 to move up and down.

[0053] Compared with the push rod 4 in Example 1 and the bevel gear in Example 3, this embodiment adopts a nailing motor 6 set between the nail guard plate 2c2a and the nail box 2c3, and a partial spur gear is connected to the output shaft of the nailing motor 6. One end of the nailing rod 3 is provided with a rack 3b5 that can engage with the partial spur gear. The rack 3b5 is located below the blocking portion 2d1, and the nailing rod 3 passes through the blocking portion 2d1 and is connected to the rack 3b5. The nailing rod 3 and the firing pin 2a1 are tilted and form an acute angle of 30° to 80°. Among them, in this embodiment, the inclination angle of the transmission shaft 7a and the nail feeding channel 2c2 is 60°, and the axis of the nailing rod 3 can be tangent to the pitch circle on the incomplete gear 6a.

[0054] Its working principle is the same as that of the first embodiment, and the nailing process is completed by the reciprocating movement of the nail pushing clamp 3a. The difference is that the fourth embodiment mainly adopts the incomplete gear 6a to engage with the rack 3b5, thereby driving the nailing rod 3 to move back and forth until the incomplete gear 6a rotates to a position where it cannot engage. At this time, the nailing rod 3 is reset by the reset member 3c, thereby completing the nailing.

Claims

1. A nail gun, comprising a strip-shaped shell (1), a cylinder body (2a) located in the strip-shaped shell (1), a cylinder mounting seat (2b), and a nail-extruding portion (2c), wherein the nail-extruding portion (2c) comprises a nail-extruding mouth (2c1) and a nail-feeding channel (2c2) located below the nail-extruding mouth (2c1), and a firing pin (2a1) is provided in the cylinder body (2a) and passes through the cylinder mounting seat (2b) and the nail-extruding mouth (2c1) in sequence, characterized in that: A blocking portion (2d1) is provided on one side of the nail feeding channel (2c2), and a reset member (3c), a lower pressing member (3b) and a nail pushing clamp (3a) capable of cooperating with the nail are sequentially provided on the blocking portion (2d1) from bottom to top. The nail pushing clamp (3a) and the lower pressing member (3b) are connected to the nail pushing clamp (3a) via an upper nail rod (3) arranged obliquely with the nail. The two ends of the reset member (3c) respectively abut against the blocking portion (2d1) and the upper nail rod (3). A push rod (4) is provided below the cylinder mounting seat (2b) and forms an acute angle with the lower pressing member (3b). When the striker (2a1) moves in the opposite direction of nailing, the push rod (4) moves in the nailing direction and drives the upper nail rod (3) and the nail pushing clamp (3a) to move downward through the lower pressing member (3b) until the push rod (4) stops moving. The reset member (3c) drives the lower pressing block and the nail pushing clamp (3a) to move upward through the upper nail rod (3).

2. The nail gun according to claim 1, characterized in that: The nail feeding channel (2c2) comprises a nail-exiting guard plate (2c2a) and a movable plate (2c2b) hinged to the nail-exiting guard plate (2c2a); the blocking portion (2d1) is fixedly connected to the nail-exiting guard plate (2c2a).

3. The nail gun according to claim 2, characterized in that: The cylinder mounting seat (2b) comprises a lifting portion (2b1) and a speed reduction mechanism (2e) located below the lifting portion (2b1); the speed reduction mechanism (2e) comprises a cover (2e3) and a driven wheel (2e2) that drives the lifting portion (2b1) to rotate; one end of the cover (2e3) is provided with an opening (2e3a) for the push rod (4) to pass through.

4. The nail gun according to claim 3, characterized in that: The pushing rod (4) comprises a rod body (4a) and a pushing portion (4b), and the pushing portion (4b) passes through the opening (2e3a) and abuts against the pressing member (3b).

5. The nail gun according to claim 4, characterized in that: The driven wheel is provided with a stop pin (2e2a) circumferentially arranged along the axis of the driven wheel (2e2); a strip groove (4a1) for the stop pin (2e2a) to move is provided in the middle of the rod body (4a); limiting strip holes (4a2) are provided on both sides of the strip groove (4a1); a reciprocating limiting column (4a3) is provided in the limiting strip hole (4a2); and the limiting column (4a3) is connected to the cover shell (2e3).

6. The nail gun according to claim 3, 4 or 5, characterized in that: One end of the push rod (4) passes through the opening (2e3a) to form a push portion (4b), and the push portion (4b) is a push block (4b1) with an inclined surface. The lower pressing member (3b) and the upper nail rod (3) are integrally formed, and the lower pressing member (3b) is provided with a lower pressing inclined surface (3b1) arranged opposite to the push block (4b1).

7. The nail gun according to claim 3, 4 or 5, characterized in that: The lower pressing member (3b) comprises a swinging plate (3b2) hinged to the nail-extruding guard plate (2c2a); one end of the swinging plate (3b2) (3b2) is provided with a push plate (3b2a); the other end is provided with a lower pressing member (3b) movably connected to the upper nail rod (3); the pushing portion (4b) on the pushing rod (4) passes through the opening (2e3a) and abuts against the push plate (3b2a).

8. The nail gun according to claim 1, characterized in that: The nail pushing clamp (3a) is provided with a nail embedding groove (3a1) that cooperates with the nail, and a guiding inclined surface is provided on one side of the nail embedding groove (3a1).

9. The nail gun according to claim 1, characterized in that: The nail ejection guard plate (2c2a) is provided with a movable groove (2d) for the nail pushing plate to reciprocate, and the movable groove (2d) is arranged obliquely relative to the striker (2a1).

10. The nail gun according to claim 1 or 9, characterized in that: The center line of the nail feeding channel (2c2) coincides with the axis of the upper nail rod (3) and forms an acute angle of 30° to 80° with the striker (2a1).

11. A nail gun, comprising a strip-shaped shell (1), a cylinder body (2a) located in the strip-shaped shell (1), a cylinder mounting seat (2b), and a nail-extruding portion (2c), wherein the nail-extruding portion (2c) comprises a nail-extruding mouth (2c1) and a nail box (2c3) located below the nail-extruding mouth (2c1), wherein the nail box (2c3) is connected to the nail-extruding mouth (2c1) via a nail-feeding channel (2c2), and a firing pin (2a1) is provided in the cylinder body (2a) and can pass through the nail-extruding mouth (2c1) and the cylinder mounting seat (2b) in sequence to drive out the nail, characterized in that: A blocking portion (2d1), an upper nail rod (3) and a nail pushing clamp (3a) are provided on one side of the nail feeding channel (2c2). The nail feeding channel (2c2) and the upper nail rod (3) are both inclined relative to the striker (2a1). One end of the upper nail rod (3) is provided with a hinged portion (3d) hingedly connected to the nail pushing clamp (3a), and the other end passes through the blocking portion (2d1) and forms a lower pressing member (3b). A reset member (3c) is provided on the outer sleeve of the upper nail rod (3). Both ends of the reset member (3c) respectively abut against the lower end surface of the blocking portion (2d1) and the hinged portion (3d). A driving member is provided on one side of the nail feeding channel (2c2). The driving member drives the upper nail rod (3) to move downward through the lower pressing member (3b).

12. The nail gun according to claim 11, characterized in that: The nail feeding channel (2c2) comprises a nail-exiting guard plate (2c2a) and a movable plate (2c2b) hinged to the nail-exiting guard plate (2c2a); the blocking portion (2d1) is fixedly connected to the nail-exiting guard plate (2c2a).

13. The nail gun according to claim 12, characterized in that: The cylinder mounting seat (2b) comprises a lifting portion (2b1) and a speed reduction mechanism (2e) located below the lifting portion (2b1); the speed reduction mechanism (2e) comprises a cover (2e3) and a driven wheel (2e2) that drives the lifting portion (2b1) to rotate; one end of the cover (2e3) is provided with an opening (2e3a) for the push rod (4) to pass through.

14. The nail gun according to claim 13, characterized in that: A driven wheel (2e2) is provided in the speed reduction mechanism (2e), and a main bevel gear (2e2b) and a slave bevel gear (5) are provided below the driven wheel (2e2). One side of the slave bevel gear (5) is meshed with the main bevel gear (2e2b), and the other side is provided with a stop pin (2e2a), and the stop pin (2e2a) can abut against one side of the lower pressing member (3b).

15. The nail gun according to claim 16, characterized in that: The lower pressing member (3b) comprises a blocking block (3b3) located at the bottom and a connecting portion (3b4) connected to the upper nail rod (3), and the slave bevel gear (5) drives the blocking pin (2e2a) to abut against the blocking portion (2d1).

16. The nail gun according to claim 12, characterized in that: The lower pressing member (3b) is a rack (3b5), an upper nail motor (6) is provided below the driven wheel (2e2), an incomplete gear (6a) is provided on the output shaft of the upper nail motor (6), and the incomplete gear (6a) is meshed with the rack (3b5).

17. The nail gun according to claim 11, characterized in that: The center line of the nail feeding channel (2c2) coincides with the axis of the upper nail rod (3) and forms an acute angle of 30° to 80° with the striker (2a1).

18. A nail gun, comprising a strip-shaped shell (1), a cylinder (2a) and a nail-extracting portion (2c) located in the strip-shaped shell (1), wherein one end of the cylinder (2a) is connected to the nail-extracting portion (2c) via a cylinder mounting seat (2b), a firing pin (2a1) is provided in the cylinder (2a), and the firing pin (2a1) passes through the cylinder mounting seat (2b) and the nail-extracting portion (2c) in sequence to drive out the nail, and a lifting portion (2b1) and a speed reduction mechanism (2e) are provided on one side of the cylinder mounting seat (2b) and are arranged parallel to the firing pin (2a1), and the nail gun is characterized in that: The strip-shaped housing (1) is provided with a handle holding portion (1a), and a main motor (7) located at the bottom is provided in the handle holding portion (1a). The main motor (7) is connected to the lifting portion (2b1) via a speed reduction mechanism (2e). A transmission shaft (7a) is connected to the main motor (7). The transmission shaft (7a) is covered in the handle holding portion (1a) and coincides with the central axis of the handle holding portion (1a). The speed reduction mechanism (2e) is connected to the transmission shaft (7a) via an angle supplement structure (7b).

19. The nail gun according to claim 18, characterized in that: The handle gripping portion (1a) is arranged tilted relative to the striker (2a1).

20. The nail gun according to claim 19, characterized in that: The speed reduction mechanism (2e) comprises a driving wheel (2e1) and a driven wheel (2e2), and the lifting portion (2b1) is fixedly connected to the driven wheel (2e2) in the speed reduction mechanism (2e).

21. The nail gun according to claim 20, characterized in that: The angle supplement structure (7b) comprises a columnar middle piece (7b1) and a rotating shaft that drives the main gear to rotate, and both ends of the middle piece (7b1) are respectively hingedly connected to the rotating shaft and the transmission shaft (7a).

22. The nail gun according to claim 20, characterized in that: The angle supplement structure (7b) comprises a ball head hingedly connected to the transmission shaft (7a), one end of the ball head being fixedly connected to the main gear.

23. The nail gun according to claim 18, characterized in that: The other end cover of the cylinder body (2a) is provided with a cylinder cover (2f), and the cylinder cover (2f) is provided with an inflation structure (2f1) and a deflation structure (2f2).

24. A nail gun, comprising a horizontally arranged strip-shaped housing (1), a nailing body (2) arranged along a strip direction in the strip-shaped housing (1), a nailing groove being provided at the front end of the nailing body (2), and characterized in that: The middle portion of the strip-shaped housing (1) has a vertically arranged strip-shaped handle grip portion (1a), and a symmetric axis is arranged in the middle of the handle grip portion (1a) along the length direction of the strip-shaped housing (1). A nail box (2c3) is arranged on the symmetric axis and is located at the front end of the middle portion of the handle. The nail box (2c3) is connected below the nail ejection nozzle (2c1). A main motor (7) and a power battery box (8) located in front of the main motor (7) are provided in the bottom of the handle grip portion (1a) below the axis. The main motor (7) and the power battery box (8) are lower than the bottom of the nail box (2c3) and are centered on the symmetric axis. The power battery box (8) and the main motor (7) are arranged side by side in front and back to form a counterweight relative to the weight in the strip-shaped housing (1).

25. The nail gun according to claim 23, characterized in that: A striker (2a1) that reciprocates along the length direction is provided in the nailing body (2), and the handle gripping portion (1a) and the nail box (2c3) are arranged at an angle relative to the striker (2a1).

26. The nail gun according to claim 23, characterized in that A nail feeding channel (2c2) is provided on the nail box (2c3) and the nail ejection nozzle (2c1), and the nail feeding channel (2c2) is arranged obliquely relative to the nail driving body (2).

27. The nail gun according to claim 24, characterized in that The nail driving body (2) comprises a cylinder body (2a) and a cylinder mounting seat (2b) connected to a nail ejection mouth (2c1), and the striker (2a1) passes through the cylinder mounting seat (2b) and the nail ejection mouth (2c1) in sequence.

28. The nail gun according to claim 24, characterized in that The main motor (7) is connected to the hoist in the cylinder mounting seat (2b) via a transmission shaft (7a), and the transmission shaft (7a) coincides with the central axis of the handle gripping portion (1a).

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