Nail gun

Abstract

The utility model discloses a nail gun which comprises a nail box, an upper cover plate, a lower cover plate, a nailing channel arranged between the upper cover plate and the lower cover plate, an avoiding channel communicated with the nailing channel and a movably-arranged nail distributing piece, and the nailing channel can allow a first fastening piece and / or a second fastening piece to enter the nailing channel and can move under the action of an impact piece. A limiting part extending out of the avoiding channel is arranged on the nail separating piece; when the nail distributing piece is located at the first position, the nail distributing piece can guide movement of the first fastener in the nailing channel, and the limiting part abuts against the upper cover plate so as to prevent the nail distributing piece from making contact with the lower cover plate. Compared with the existing design, the nail gun is more stable and reliable in nailing, and no extra nailing energy loss exists. The positioning mechanism is arranged, so that accurate matching of the nail conveying opening, the nail conveying channel and the channel is guaranteed in the assembling process of the upper cover plate, the lower cover plate and the nail box, and therefore the firing pin smoothly moves in the nailing channel, and nail discharging is smoother.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastening tool technical field, in particular to a nail gun. BACKGROUND

[0002] Most of the nail guns on the market are for single type nails, such as the special nail guns for straight nails or U-shaped nails, and the user needs two different special nail guns for different types of nails.

[0003] There are also multi-purpose nail guns on the market that can shoot straight nails and U-shaped nails, and the gun nozzle cover plate adopts a stepped slot form, which directly stops the nail through the gap between the upper cover plate and the lower cover plate. The nail rubs against the gun nozzle cover plate during movement, resulting in a large energy loss of the ram during the nail shooting process, thereby weakening the nail shooting force.

[0004] On some known multi-purpose nail guns, a movable nail separating member is provided, which provides guidance for the movement of straight nails in the nail shooting channel when shooting straight nails, and when shooting U-shaped nails, the nail separating member exits the nail shooting channel to provide space for the movement of U-shaped nails. However, the setting method of the nail separating member causes one end of the nail separating member near the nail outlet to always abut against the lower cover plate in the gun nozzle cover plate when shooting straight nails. During the process of the ram hitting the straight nail, the nail separating member must first be separated from the lower cover plate. At the moment when the ram separates the nail separating member from the lower cover plate, the nail separating member loses its guiding or supporting effect on the straight nail, and the straight nail also loses its guidance and is easily skewed. SUMMARY

[0005] Therefore, it is necessary to provide a multi-purpose nail gun that can ensure stable and reliable nail shooting without affecting the nail shooting force.

[0006] The present application provides a nail gun, comprising: a nail magazine for accommodating fasteners; an impact member for hitting the fasteners and extending along the longitudinal axis of the impact member; a gun nozzle assembly comprising an upper cover plate and a lower cover plate arranged oppositely; a nail shooting channel provided between the upper cover plate and the lower cover plate; an avoidance channel communicating with the nail shooting channel; and a nail separating member movably arranged relative to the upper cover plate; wherein the nail shooting channel can allow the first fastener or the second fastener to enter and move under the drive of the impact member; the nail separating member can be switched between a first position of extending into the nail shooting channel and a second position of exiting the nail shooting channel; the nail separating member is provided with a limiting portion extending out of the avoidance channel; when the nail separating member is in the first position, the nail separating member can guide the movement of the first fastener in the nail shooting channel, and the limiting portion abuts against the upper cover plate to prevent the nail separating member from contacting the lower cover plate; when the second fastener moves in the nail shooting channel, the second fastener drives the nail separating member to exit the nail shooting channel.

[0007] Preferably, the nail separating member is pivotally arranged relative to the upper cover plate by a pivot. One end of the nail separating member is connected to the upper cover plate by an elastic member, the limiting portion is arranged at the other end of the nail separating member, and the pivot is arranged between the elastic member and the limiting portion. When the nail separating member is in the first position, the one end of the nail separating member is kept in abutment with the upper cover plate by the biasing force of the elastic member.

[0008] Alternatively, the limiting portion is arranged to be connected to a first pin of the nail separating member or a pin hole formed in the nail separating member, and a transverse groove matched with the first pin or a second pin matched with the pin hole is fixedly arranged on the upper cover plate.

[0009] In the longitudinal direction of the nail driving channel, a guide surface for guiding the movement of the first fastener is arranged on the nail separating member, and a contact surface intersecting with the guide surface is arranged on the nail separating member, the second fastener contacts the contact surface when moving in the nail driving channel, and at least one inclined surface or arc surface is arranged on the contact surface.

[0010] Preferably, the nail driving channel is provided with a nail outlet for the fastener to be ejected, the avoiding channel is provided with an avoiding outlet communicated with the nail outlet, and when the nail separating member is in the first position, the nail separating member is partially located in the avoiding outlet and partially extends into the nail outlet.

[0011] Preferably, the first fastener is a straight nail, the second fastener is a U-shaped nail, a groove for accommodating the straight nail and / or the U-shaped nail is arranged on the upper cover plate, and a nail conveying channel is arranged on the lower cover plate, the groove and the nail conveying channel jointly form the nail driving channel.

[0012] Preferably, the groove and the avoiding channel respectively extend along the longitudinal direction of the gun nozzle cover plate, the groove has a pair of oppositely arranged side walls, and when the nail separating member is in the first position, the nail separating member at least partially extends into the groove and extends between the side walls, and any one of the side walls and the nail separating member forms a passage for the movement of the first fastener.

[0013] Preferably, the impact member is provided with a groove extending along the longitudinal direction of the impact member on the side opposite to the inner side of the upper cover plate, and when the nail separating member is in the first position, the groove can be used to accommodate at least part of the nail separating member extending into the nail driving channel, so that the impact member avoids interference with the nail separating member when moving in the nail driving channel.

[0014] The setting of the nail separating member in the application makes it keep separated from the lower cover plate in the first position, so that the impact member does not interfere with the nail separating member when it hits the straight nail in the nailing channel, and thus the straight nail moves along the side of the nail separating member during the whole movement in the nailing channel, that is, the nail separating member always provides guidance for the movement of the straight nail in the nailing channel, so that the straight nail shot out of the nail outlet will not be deviated or skewed; compared with the prior design, the nail gun of the application is more stable and reliable in nailing, and has no additional nailing energy loss.

[0015] The application also provides a nail gun, comprising: a nail magazine for accommodating fasteners, the nail magazine being provided with a nail feeding opening; an impact member for hitting the fasteners and extending along a longitudinal axis of the impact member; and a muzzle assembly comprising oppositely arranged upper and lower cover plates; wherein the upper cover plate is provided with a channel, and the lower cover plate is provided with a nail feeding channel, the nail feeding channel being communicated with the nail feeding opening and the channel; the nail gun further comprises a positioning mechanism comprising positioning portions arranged on the upper and lower cover plates and the nail magazine respectively, and a positioning member integrally formed with one of the upper and lower cover plates and the nail magazine or in interference fit with the positioning portions of the upper and lower cover plates and the nail magazine, the positioning member being matched with the positioning portions of the other two of the upper and lower cover plates and the nail magazine to limit the relative positions of the upper and lower cover plates and the nail magazine.

[0016] Preferably, the positioning portions on the upper and lower cover plates and the nail magazine are provided as positioning holes. The positioning member is provided as a positioning pin capable of being matched with the positioning holes.

[0017] Preferably, the positioning holes arranged on the upper and lower cover plates and the nail magazine respectively comprise at least two. The number of the positioning pins corresponds to the number of the positioning holes on any one of the upper and lower cover plates and the nail magazine.

[0018] The application also provides a nail gun, comprising: a nail magazine for accommodating fasteners, the nail magazine being provided with a nail feeding opening; an impact member for hitting the fasteners and extending along a longitudinal axis of the impact member; and a muzzle assembly comprising oppositely arranged upper and lower cover plates; wherein the upper cover plate is provided with a channel, and the lower cover plate is provided with a nail feeding channel, the nail feeding channel being communicated with the nail feeding opening and the channel; the nail gun further comprises a positioning mechanism comprising positioning portions arranged on the upper and lower cover plates and the nail magazine respectively, and a positioning member for being matched with the positioning portions, the positioning member being capable of limiting the relative positions of the upper and lower cover plates and the nail magazine in sequence when being matched with the positioning portions.

[0019] Preferably, the positioning portions on the upper and lower cover plates and the nail magazine are provided as positioning holes. The positioning member is provided as a positioning pin capable of being matched with the positioning holes.

[0020] Preferably, the positioning holes arranged on the upper cover plate, the lower cover plate and the nail magazine respectively comprise at least two. The number of the positioning pins corresponds to the number of the positioning holes on any one of the upper cover plate, the lower cover plate and the nail magazine.

[0021] Due to the positioning mechanism arranged in the present application, the upper cover plate, the lower cover plate and the nail magazine can be precisely matched in the assembly process, so that the impact piece can smoothly move in the driving path, and the nail can be smoothly driven out. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic view of the structure of the nail gun of the present application.

[0023] Figure 2 is a schematic view of the structure of the nail gun of the present application.

[0024] Figure 3 is a schematic view of the structure of the nail gun of the present application.

[0025] Figure 4 is a schematic view of the structure of the nail gun of the present application.

[0026] Figure 5 is a schematic view of the structure of the nail gun of the present application.

[0027] Figure 6 is Figure 5 is a schematic view of the structure of the nail gun of the present application.

[0028] Figure 7 is a schematic view of the structure of the nail gun of the present application.

[0029] Figure 8 is a schematic view of the structure of the nail gun of the present application.

[0030] Figure 8 is a schematic view of the structure of the nail gun of the present application.

[0031] Figure 9 is a schematic view of the structure of the nail gun of the present application.

[0032] Figure 10 is Figure 9 is a schematic view of the structure of the nail gun of the present application.

[0033] Figure 11 is Figure 9 is a schematic view of the structure of the nail gun of the present application.

[0034] Figure 12 is a top view of another upper cover plate mounting sub-nail piece of the present application.

[0035] Figure 13 is Figure 12 is a cross-sectional view of the sub-nail piece in the first position and the second position.

[0036] Marking Description:

[0037] 1-piston; 10-main housing; 11-fastening screw; 12-positioning pin; 13-limiting pin; 14-firing pin; 144-groove; 16-nail conveying passage; 16a-first branch; 16b-second branch; 18-groove; 19-avoidance passage; 19a-avoidance opening; 20-gun nozzle assembly; 21-nail shooting opening; 3-nail magazine; 3a-nail conveying opening; 3k-positioning hole; 30-motor; 32-transmission device; 4, 4'-upper cover plate; 4a-inner side surface; 4b-outer side surface; 4k-positioning hole; 42-connection seat; 42a-pin hole; 43-connection seat; 431-cross groove; 432-longitudinal groove; 433-top wall; 44-support wall; 45-accommodation space; 5-lower cover plate; 5a-inner side surface; 5k-positioning hole; 6, 6'-sub-nail piece; 6a-inclined surface; 6c-guiding surface; 6d-contact surface; 61-fitting part; 611, 611'-pin; 61a-pin hole; 612-waist-shaped hole; 62-elastic member; 63-fitting part; 63a-pin hole; 631-pin; 65-first extended end; 66-second extended end; DETAILED DESCRIPTION

[0038] In order to make the objectives, technical solutions and advantages of the present application clearer, the following further describes the present application in detail with reference to the specific embodiments and the accompanying drawings.

[0039] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be understood as their common meanings to those of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the embodiments of the present application do not represent any order, number, or importance, but are only used to distinguish different components. The terms "comprising" or "including" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, without excluding other elements or objects. The terms "connected" or "linked" and similar terms do not mean physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like only represent relative positional relationships, which can change when the absolute positions of the described objects change.

[0040] The details are set forth in the following description in order to provide a thorough understanding of the present application. The application, however, can be practiced without resorting to the details specifically disclosed.

[0041] The present application provides a fastening tool, referring to Figure 1 , Figure 2 , Figure 3 The fastening tool is a nail gun, comprising a main housing 10, a cylinder (not shown in the figure) arranged in the main housing 10, a piston 1 movably arranged in the cylinder, and an impact element connected to the piston 1. In this embodiment, the impact element is a striker 14 extending along a longitudinal axis X. A nose assembly 20 is arranged outside the main housing 10, and a nail magazine 3 is arranged at one side of the nose assembly 20 for pre-storing fasteners such as straight nails or U-shaped nails. The nose assembly 20 is provided with a nail driving channel allowing the striker 14 to hit the fasteners therein, and the end of the nail driving channel is provided with a nail ejection port 21 for the fasteners to be ejected. The nose assembly 20 comprises a pair of cover plates, one of which is a lower cover plate 5 adjacent to the nail magazine 3, and the other of which is an upper cover plate 4 opposite to the lower cover plate 5. The lower cover plate 5 is provided with a nail feeding channel 16 communicating with a nail feeding port 3a of the nail magazine 3, and the upper cover plate 4 is provided with a slot 18 corresponding to the nail feeding channel 16. When the upper cover plate 4 and the lower cover plate 5 are assembled together, the nail feeding channel 16 and the slot 18 jointly form the nail driving channel.

[0042] The nail gun is provided with a motor 30 and a transmission device 32 driven by the motor, wherein the transmission device 32 can convert the rotary motion of the motor 30 into the linear motion of the striker 14 along its longitudinal axis X through a lifting mechanism (not shown in the figure). The motion of the striker 14 drives the piston 1 to move in the cylinder from a lower dead point to an upper dead point, thereby compressing the gas in the cylinder to store energy. When the piston 1 reaches the upper dead point, the energy of the compressed gas is instantaneously released, and the piston 1 drives the striker 14 to move rapidly along the longitudinal axis X to hit the fasteners fed from the nail magazine 3 into the nose assembly 20, and the fasteners are ejected from the nail ejection port 21 and driven into a workpiece.

[0043] Referring to Figure 2 , Figure 3 Before the upper cover plate 4, the lower cover plate 5, and the nail magazine 3 are assembled together, they need to be positioned first. After positioning, the lower cover plate 5 and the nail magazine 3 are fixedly connected together by fastening screws 11, and the upper cover plate 4 and the lower cover plate can be selectively connected by fastening screws or by a snap-on quick release connection, which can eliminate the separately arranged part of the fastening screws and facilitate disassembly and connection. The positioning of the upper cover plate 4, the lower cover plate 5, and the nail magazine 3 before fixed connection is to avoid problems such as poor ejection of nails and nail jamming caused by installation errors between the three or any two of them or by installation out of position due to manufacturing precision. After the assembly of the three is completed, the straight nails or U-shaped nails can move without interference in the nail driving channel and be ejected from the nail ejection port 21 under the drive of the striker 14.

[0044] Referring to Figure 2 、 Figure 4 When the upper cover plate 4 is installed on the lower cover plate 5, the channel 18 needs to be aligned with the nail conveying channel 16 and then fastened together to ensure that the two channels are not misaligned in the width direction, so as to form a nail striking channel for the striker to pass through. Similarly, when the lower cover plate 5 is connected with the nail magazine 3, the nail conveying channel 16 needs to be aligned with the nail conveying port 3a of the nail magazine 3 to ensure that the nails sent out from the nail conveying port 3a of the nail magazine 3 can smoothly enter the nail striking channel without being stuck. In the embodiment, the positioning mechanism is configured as follows: the upper cover plate 4, the lower cover plate 5, and the nail magazine 3 are respectively provided with positioning parts, which are configured as positioning holes 4k, 5k, and 3k in the embodiment. When assembled, the positioning hole 5k of the lower cover plate 5 is aligned with the positioning hole 3k of the nail magazine 3, and then the positioning hole 4k of the upper cover plate 4 is aligned with the positioning hole 5k of the lower cover plate 5. The positioning mechanism is further provided with positioning members matched with the positioning parts. In the embodiment, the positioning members are configured as positioning pins 12 matched with the positioning holes 4k, 5k, and 3k. The positioning pins 12 are sequentially inserted into the positioning holes 4k, 5k, and 3k. The number of positioning holes provided on each of the upper cover plate 4, the lower cover plate 5, and the nail magazine 3 is at least two, because two points determine a line. From top to bottom, the positioning holes 4k, 5k, and 3k of the three parts correspond to each other in sequence. The number of positioning pins 12 is the same as the number of positioning holes on one of the three parts. The lower cover plate 5 is further provided with a pair of parallel limiting pins 13. The spacing of the limiting pins 13 is matched with the width of the striker 14, so that the striker 14 is corrected in position before entering the nail striking channel, and enters the nail striking channel in a linear manner to move quickly in the nail striking channel to strike the nails.

[0045] In an alternative embodiment, the positioning pins 12 can be integrally formed with the lower cover plate 5 (the original position of the positioning hole 5k) or be in interference fit with the positioning hole 5k of the lower cover plate 5, which is more convenient when assembled. When assembled, the positioning pins 12 on the lower cover plate 5 are aligned with the positioning hole 3k on the nail magazine 3, and then the positioning hole 4k on the upper cover plate 4 is aligned with the positioning pins 12. Finally, the relative positions of the three parts are fastened or locked.

[0046] In another alternative embodiment, the positioning pins 12 can be integrally formed with the nail magazine 3 (the original position of the positioning hole 3k) or be in interference fit with the positioning hole 3k of the nail magazine 3. When assembled, the positioning pins 12 on the nail magazine 3 are aligned with the positioning hole 5k on the lower cover plate 5, and then the positioning hole 4k on the upper cover plate 4 is aligned with the positioning pins 12. Finally, the relative positions of the three parts are fastened or locked.

[0047] Meanwhile, the positioning pins 12 can also be integrally formed with or in interference fit with the upper cover plate 4, which is not described here.

[0048] The staple feeding channel 16 in this embodiment is U-shaped, and therefore can be used to accommodate a U-shaped staple, wherein the U-shaped staple feeding channel 16 comprises a first branch 16a and a second branch 16b; wherein the first branch 16a is used to accommodate a straight staple, and the two side walls of the first branch 16a are provided with a plurality of concave-convex parts for respectively matching with the head of a straight staple of different specifications to guide the straight staple to enter the staple feeding channel from the staple magazine 3. The first branch 16a and the second branch 16b are used to accommodate the two legs of a U-shaped staple, which is fed into the channel 18 from the staple feeding port 3a of the staple magazine 3 through the staple feeding channel 16 by a staple pusher (not shown in the figure).

[0049] With reference to Figures 4 to 6 The channel 18 is formed on the inner side 4a of the upper cover plate 4 facing the striker 14, and is used to accommodate a straight staple A or a U-shaped staple B fed from the staple feeding port 3a, and is also used to accommodate the striker 14 to move quickly therein to hit the straight staple A or the U-shaped staple B. The channel 18 extends along the longitudinal axis X of the striker 14, and the upper cover plate 4 is further provided with an avoiding channel 19 communicating with the channel 18, which also extends along the longitudinal axis X of the striker. A staple separating member 6 extends along the longitudinal direction of the avoiding channel 19, and is at least partially arranged in the avoiding channel 19 and is movable relative to the upper cover plate 4. The avoiding channel 19 is provided with an avoiding port 19a communicating with the staple outlet 21. In this embodiment, the staple separating member 6 is pivotally arranged relative to the upper cover plate 4 by a pivot 631. The staple separating member 6 has a first position in which at least a part of the staple separating member 6 extends into the channel 18, and a second position in which the staple separating member 6 exits the channel 18, that is, the staple separating member 6 can be switched between the first position and the second position. Figure 4 When the staple separating member 6 is in the first position, the straight staple A moves along one side wall of the staple separating member 6, i.e. a guide surface 6c, when moving in the channel 18, and the side wall of the staple separating member 6 provides guidance for the movement of the straight staple A in the channel 18. When the staple separating member 6 is in the first position, it extends into the channel 18 and separates the channel 18 into two spaces, and if necessary, the straight staple A can be accommodated in the other space, and the other side wall of the staple separating member 6 can also guide the movement of the straight staple A in the channel 18. The meaning of the word "guide" in this application refers to the fact that the straight staple A moves along the staple separating member 6 on one hand, and on the other hand, the straight staple A is also limited by the staple separating member 6 to prevent the straight staple A from deviating when moving.

[0050] The inner side 4a of the upper cover plate 4 opposite to the striker 14 is provided with a groove 144 extending along the longitudinal direction of the striker 14, which can be used to accommodate at least part of the staple separating member 6 extending into the staple feeding channel when the staple separating member 6 is in the first position, so that the striker 14 moves in the staple feeding channel without interfering with the staple separating member 16.

[0051] With further reference to Figure 5 , Figure 6When the staple B in the cartridge 3 is driven into the channel 18 by the feeding port 3a, the hitting part of the striker 14 first contacts the head of the staple B. The staple B is driven by the driving part 6, and the driving part 6 is moved from the first position to the second position, i.e. the driving part 6 is withdrawn from the channel 18 and inserted into the avoiding channel 19. Any side wall of the driving part 6 for guiding the straight staple is defined as the guiding surface 6c, and the surface intersecting with the guiding surface 6c and opposite to the staple is defined as the contact surface 6d. The contact surface 6d is provided with at least one inclined surface 6a. When the driving part 6 is in the first position, the driving part 6 is at least partially inserted into the channel 18, and correspondingly, at least part of the contact surface 6d protrudes into the channel 18. During the driving process of the staple B by the striker 14, especially during the process that the staple B climbs up the inclined surface 6a from the bottom end to the top end of the inclined surface 6a, the linear driving force applied to the staple B by the striker 14 generates a component force in the direction of the avoiding channel on the inclined surface 6a, which can drive the driving part 6 to move from the channel 18 into the avoiding channel 19 when the staple B passes through the inclined surface 5. The inclined surface 6a in the embodiment can be replaced by an arc surface with similar effect.

[0052] Referring to Figure 7 , Figure 8 , Figure 9As shown, the split pin 6 has two ends 65, 66 along its longitudinal direction, and the fitting part 61 and the fitting part 63 are arranged at the positions close to the ends respectively. The outer side 4b of the upper cover plate 4 is provided with a connecting seat 43 corresponding to the fitting part 61, and a connecting seat 42 corresponding to the fitting part 63. The fitting part 63 is provided with a pin hole 63a, and the outer side of the upper cover plate 4 is provided with a pair of support walls 44 protruding from the outer side 4b, the support walls 43 extend along the longitudinal direction of the split pin 6 and are substantially parallel, and a receiving space 45 is arranged between the support walls 44, the receiving space 45 is in communication with the avoiding passage 19, and is used for receiving the fitting part 63 and the first extension end 65 thereof; the support wall 42 is provided with a pair of pin holes 42a, when the fitting part 63 and the first extension end 65 of the split pin 6 extend into the receiving space 45, the pin 631 is inserted through the pin holes 42a and 63a respectively, so that the split pin 6 and the upper cover plate 4 are pivotally connected through the pin holes 42a. In addition, the receiving space 45 is provided with an elastic element 62 abutting against the first extension end 65, and the elastic element 62 provides a biasing force for lifting the first extension end 65 upward. The connecting seat 43 is provided with a horizontal slot 431 and a longitudinal slot 432, the horizontal slot 431 and the longitudinal slot 432 are substantially perpendicular, and their extension directions are perpendicular to the split pin 6 respectively. The horizontal slot 431 and the longitudinal slot 432 are in communication with the avoiding passage 19 respectively, and the longitudinal slot 432 can be used to accommodate the fitting part 61 of the split pin 6 to move therein, and the fitting part 61 is provided with a pin hole 61a, when the pin 611 is assembled in the pin hole 61a, under the biasing force of the elastic element 62, the pin 611 abuts against the bottom surface of the horizontal slot 431, so that the second extension end 66 of the split pin 6 is kept separated from the inner side surface 5a of the lower cover plate (see FIG. 4). Figure 11 The pin 631 serves as a pivot between the elastic element 62 and the limiting part, and the split pin 6 is similar to a lever, the first extension end 65 is lifted, and the second extension end 66 is pressed down. The pin 611 connected to the fitting part 61 serves as a limiting part, which can prevent the second extension end 66 of the split pin 6 from contacting the inner surface of the lower cover plate. Near the nail hole 21, the avoiding passage of the upper cover plate 4 is provided with a top wall 433, which is used to abut against the second extension end 66 of the split pin 6 when the fitting part 61 moves in the longitudinal slot 432, so as to limit the movement of the split pin 6 in the avoiding passage 19.

[0053] Referring to Figure 10 , Figure 11As shown, when the nail separating member 6 is in the first position shown by the solid line, the nail separating member 6 extends into the channel 18 of the upper cover plate 4, i.e. into the nail striking channel, and the pin 611 abuts against the horizontal groove 431, thereby preventing the second extending end 66 of the nail separating member 16 from contacting the inner side surface 5a of the lower cover plate 5, i.e. the nail separating member 6 remains separated from the inner side surface 5a of the lower cover plate 5. At this time, the second extending end 66 of the nail separating member 6 is partially located in the avoiding opening 19a and partially extends into the nail ejection opening 21. At this time, the guide surface 6c of the nail separating member 6 remains to guide the movement of the straight nail A in the nail striking channel until the straight nail A is ejected from the nail ejection opening 21 by the striker 14. Therefore, the striker 14 can smoothly strike the nail in the nail striking channel without any energy loss. The straight nail A will not be deviated due to the lack of guidance near the nail ejection opening 21. When a U-shaped nail enters the nail striking channel, the striker 14 drives the U-shaped nail to move along the inclined surface 6a of the nail separating member 6, thereby driving the nail separating member 6 to move out of the nail striking channel to the second position shown by the dotted line.

[0054] Referring to Figure 12 , Figure 13 As shown, the upper cover plate 4' is a variant of the upper cover plate 4 and the nail separating member 6' is a variant of the nail separating member 6. For the convenience of description, the same structures are denoted by the same reference numerals and will not be described repeatedly. The difference lies in that the pin 611' is fixedly arranged in the horizontal groove 431 relative to the upper cover plate 4'. The extending direction of the elastic member 62 is defined as the height direction of the nail separating member 6'. The assembling portion 61 of the nail separating member 16' is provided with a waist-shaped hole 612 in the height direction. The pin 611' is engaged in the waist-shaped hole 612.

[0055] Referring to Figure 12 When the nail separating member 6' is in the first position shown by the solid line, the first extending end 65 of the nail separating member 6' has a tendency to be lifted under the biasing action of the elastic member 62. The second extending end 66 of the nail separating member 6' has a tendency to be pressed down, so that the pin 611' is engaged in the top of the waist-shaped hole 612, i.e. the top of the waist-shaped hole 612 limits the second extending end 66 of the pin 611' from contacting the lower cover plate (not shown in the figure). When the nail separating member 6' moves from the first position to the avoiding channel 19 shown by the dotted line, the pin 611' is engaged in the middle of the waist-shaped hole 612 of the nail separating member 6'. Further, the limit position of the nail separating member 6' in the avoiding channel 19 is limited by the bottom of the waist-shaped hole 612.

[0056] It should be noted that some embodiments of the present application have been described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order and still achieve desirable results. Additionally, the processes depicted in the figures do not necessarily require the particular order shown or sequential order to achieve desirable results.

[0057] It should be understood by those of ordinary skill in the art that the discussion of any implementation above is merely exemplary in nature and is in no way intended to suggest the scope of the application (including the claims) is limited to these examples; the implementations above or a combination of techniques from different implementations can be combined in the spirit of the application, steps can be implemented in any order, and there are many other variations of the different aspects of the implementations of the application as described above, which are not provided in detail for the sake of brevity. It will be apparent to those skilled in the art that the above-described implementations can be modified in various ways.

[0058] The implementations of this application are intended to cover all such alternatives, modifications, and variations as fall within the scope of the broadest possible interpretation of the appended claims. Accordingly, any one or more features of any element in the drawings, or the language of the claims, is not to be understood as being critical, essential, or requiring exclusivity to the full extent expressly or implied by such terms. Thus, the scope of the application should be determined by the broadest possible interpretation of the claims.

Claims

1. A nail gun characterized by, The application relates to a nailer, comprising: a nail magazine for containing fasteners; a striking element for striking the fasteners and extending along a longitudinal axis of the striking element; a nose assembly comprising an upper cover plate and a lower cover plate arranged oppositely; a driving channel arranged between the upper cover plate and the lower cover plate; an avoiding channel communicating with the driving channel; and a separating element movably arranged relative to the upper cover plate; wherein the driving channel is capable of allowing the first fastener or the second fastener to enter and move in the driving channel under the driving of the striking element; the separating element is switchable between a first position of extending into the driving channel and a second position of withdrawing from the driving channel; the separating element is provided with a limiting portion extending out of the avoiding channel; when the separating element is in the first position, the separating element is capable of guiding the movement of the first fastener in the driving channel, and the limiting portion abuts against the upper cover plate to prevent the separating element from contacting the lower cover plate; when the second fastener moves in the driving channel, the second fastener drives the separating element to move to the second position.

2. The nail gun of claim 1, wherein: The separating element is rotatably arranged relative to the upper cover plate by a pivot.

3. The nail gun of claim 2, wherein: The first extending end of the separating element is connected to the upper cover plate by an elastic element, the limiting portion is arranged at the second extending end of the separating element, and the pivot is arranged between the elastic element and the limiting portion.

4. The nail gun of claim 3, wherein: When the separating element is in the first position, the first extending end of the separating element keeps the limiting portion of the second extending end of the separating element in abutment against the upper cover plate under the biasing force of the elastic element, so that the second extending end of the separating element keeps separated from the lower cover plate.

5. The nail gun of claim 1 or 4, wherein: The limiting portion is arranged to be connected to a first pin of the separating element or a pin hole formed in the separating element, and the upper cover plate is fixedly provided with a transverse groove matched with the first pin or a second pin matched with the pin hole.

6. The nail gun of claim 1, wherein: Along the longitudinal direction of the driving channel, the separating element is provided with a guide surface for guiding the movement of the first fastener in the driving channel and a contact surface intersecting with the guide surface, the second fastener contacts the contact surface when moving in the driving channel, and the contact surface is provided with at least one inclined surface or arc surface.

7. The nail gun of claim 1, wherein: The driving channel is provided with a nail outlet for the fastener to shoot out, the avoiding channel is provided with an avoiding outlet communicating with the nail outlet, and when the separating element is in the first position, the separating element is partially located in the avoiding outlet and partially extends into the nail outlet.

8. The nail gun of claim 1, wherein: The first fastener is arranged as a straight nail, the second fastener is arranged as a U-shaped nail, the upper cover plate is provided with a groove for containing the straight nail and / or the U-shaped nail, and the lower cover plate is provided with a nail conveying channel, the groove and the nail conveying channel jointly form the driving channel.

9. The nail gun of claim 8, wherein, The groove and the avoiding channel respectively extend along the longitudinal direction of the nose cover plate, the groove has a pair of oppositely arranged side walls, and when the separating element is in the first position, the separating element at least partially extends into the groove and extends between the side walls, and any side wall and the separating element can form a passage for the movement of the first fastener.

10. The nail gun of claim 1, wherein, The side opposite to the upper cover plate of the impact member is provided with a groove extending along the longitudinal direction of the striker, when the nail separating member is in the first position, the groove can be used to accommodate at least part of the nail separating member extending into the nail striking channel, so that the impact member moves in the nail striking channel to avoid interference with the nail separating member.

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