Nail gun with easily replaceable firing pin

Abstract

The present application provides a nail gun with convenient replacement of the striker, since the striker baffle is detachably installed on the opening of the outer casing, and the opening position corresponds to the mounting portion of the striker, thus the striker baffle can be removed, the striker can be replaced through the opening, and the entire casing does not need to be disassembled, a large number of internal components do not need to be removed and disassembled; since the tail portion of the striker has a protruding portion perpendicular to the reciprocating direction, and the piston has a hole portion matched with the protruding portion, thus the protruding portion of the striker is embedded and fixed in the hole portion on the piston to connect the striker and the piston, without the need of setting connecting members such as pins and screws, the number of components is reduced, the loss of these smaller components is avoided, the installation steps are reduced, and for ordinary users, the operation of replacing the striker is greatly simplified.

Description

Technical Field

[0001] This invention belongs to the field of fastening tool technology, specifically relating to a nail gun that facilitates quick replacement of the firing pin. Background Technology

[0002] A nail gun is a fastening tool, mostly used in construction, that uses a firing pin to propel nails out. Due to mechanical wear during the impact process, the firing pin will wear down and deform. Therefore, the firing pin needs to be replaced after a period of use to prevent deformation from affecting the nail-shooting force and creating safety hazards.

[0003] In existing technologies, most nail guns are electric nail guns powered by lithium batteries. Replacing the firing pin requires disassembling the entire outer casing and removing the internal components. The outer casing is a two-part design, secured together by six or more screws, and the internal component assembly is complex. Therefore, for ordinary users, disassembling and assembling nail guns and replacing the firing pin is quite difficult, time-consuming, and inconvenient. Furthermore, small internal parts such as pins and screws are easily lost during disassembly and assembly, causing inconvenience to users.

[0004] Therefore, to solve the above problems, a nail gun that is easy for ordinary users to replace the firing pin and has relatively fewer parts is needed. Summary of the Invention

[0005] This invention is made to solve the above-mentioned problems, and its purpose is to provide a nail gun structure that is easy to replace the firing pin and has fewer parts. The technical solution adopted by this invention is as follows:

[0006] This invention provides a nail gun with an easily replaceable firing pin, characterized in that it comprises: a housing, including a main body housing and a firing pin baffle detachably mounted on an opening in the main body housing; a firing pin, mounted inside the main body housing and located below the firing pin baffle, for striking a nail; and a firing pin drive assembly, including a piston for driving the firing pin to move along a predetermined reciprocating motion direction, wherein the firing pin has a plate-shaped firing pin tail, a protrusion extending from one side of the firing pin tail perpendicular to the reciprocating motion direction, and a guide impact portion for striking the nail; the piston has a firing pin connecting portion, the firing pin connecting portion having a hole that matches the protrusion; the firing pin tail abuts against the surface of the firing pin connecting portion, and the protrusion is fitted into the hole.

[0007] The nail gun provided by the present invention, which facilitates the replacement and installation of the firing pin, may also have the following technical features: the protrusion is in the shape of a square plate and is integrally formed with the tail of the firing pin; the hole is a strip-shaped hole that matches the protrusion.

[0008] The nail gun provided by the present invention, which facilitates the replacement and installation of the firing pin, may also have the following technical feature: the length direction of the strip hole is perpendicular to the reciprocating motion direction.

[0009] The nail gun provided by the present invention, which facilitates the replacement and installation of the firing pin, may also have the following technical features: the tail of the firing pin is in the shape of a square plate, the protrusion extends from the edge of the tail of the firing pin, and the guiding impact part is in the shape of a long strip plate, integrally formed with the tail of the firing pin.

[0010] The nail gun provided by the present invention, which facilitates the replacement and installation of the firing pin, may also have the following technical features: the protrusion is cylindrical, and the hole is a circular hole that matches the protrusion.

[0011] The nail gun provided by the present invention, which facilitates the replacement and installation of the firing pin, may also have the following technical features: the tail of the firing pin is in the shape of a square plate, the protrusion extends from the middle of one surface of the tail of the firing pin, and the guiding impact part is in the shape of a long strip plate and is integrally formed with the tail of the firing pin.

[0012] The nail gun provided by the present invention, which facilitates the replacement and installation of the firing pin, may also have the following technical feature: a crimping protrusion is formed on the other side of the tail of the firing pin, the crimping protrusion is formed at a position corresponding to the protrusion, and the crimping protrusion abuts against the bottom surface of the firing pin baffle.

[0013] The nail gun provided by the present invention, which facilitates the replacement and installation of the firing pin, may also have the following technical feature: the firing pin drive assembly has a firing pin receiving groove that matches the guiding impact part, the firing pin receiving groove having a receiving groove opening for inserting the firing pin, and the projection of the replacement opening on the plane where the receiving groove opening is located covers the receiving groove opening.

[0014] The nail gun provided by the present invention, which facilitates the replacement and installation of the firing pin, may also have the following technical features: the direction of the opening of the receiving groove is consistent with the length direction of the replacement opening, the length of the replacement opening is greater than the length of the firing pin, and the width of the replacement opening is greater than the width of the firing pin.

[0015] The nail gun provided by this invention, which facilitates the replacement and installation of the firing pin, may also include the following technical features: multiple baffle fasteners for fixing the firing pin baffle to the firing pin drive assembly. The firing pin baffle has a snap-fit ​​on its surface facing the firing pin, and the main housing has a slot that matches the snap-fit. The firing pin baffle and the main housing are engaged through the snap-fit ​​and the slot. The firing pin baffle also has multiple mounting through holes, and the firing pin drive assembly has multiple baffle mounting holes. When the firing pin baffle is engaged with the main housing, the baffle fasteners pass through the mounting through holes and the baffle mounting holes, detachably installing the firing pin baffle to the main housing and the firing pin drive assembly.

[0016] Invention Function and Effect

[0017] The nail gun of the present invention, which facilitates quick replacement and installation of the firing pin, features a firing pin baffle detachably mounted on an opening in the outer housing, with the opening corresponding to the firing pin mounting portion. This allows the firing pin baffle to be removed and the firing pin replaced through the opening without disassembling the entire housing or removing and reassembling numerous internal components. Furthermore, the firing pin tail has a protrusion perpendicular to the reciprocating motion direction, and the piston has a hole matching the protrusion. Therefore, the protrusion of the firing pin can be fitted and fixed into the hole on the piston to connect the two, eliminating the need for pins, screws, or other connecting parts. This reduces the number of parts, prevents the loss of these smaller components, and reduces installation steps, greatly simplifying the firing pin replacement operation for ordinary users. Attached Figure Description

[0018] Figure 1 This is a perspective view of the nail gun in Embodiment 1 of the present invention;

[0019] Figure 2 This is a structural breakdown of the nail gun in Embodiment 1 of the present invention. Figure 1 ;

[0020] Figure 3 This is a structural breakdown of the nail gun in Embodiment 1 of the present invention. Figure 2 ;

[0021] Figure 4 This is a perspective view of the firing pin baffle in Embodiment 1 of the present invention;

[0022] Figure 5 This is a schematic diagram of the engagement between the buckle and the slot in Embodiment 1 of the present invention;

[0023] Figure 6 This is an exploded view of the nozzle structure in Embodiment 1 of the present invention;

[0024] Figure 7 This is a perspective view of the guiding impact part of the firing pin in Embodiment 1 of the present invention;

[0025] Figure 8 yes Figure 3 Enlarged view of the inner part of frame A;

[0026] Figure 9 This is a flowchart of replacing the firing pin in Embodiment 1 of the present invention;

[0027] Figure 10 This is an exploded view of the nail gun in Embodiment 2 of the present invention.

[0028] Figure 11 This is a perspective view of the firing pin in Embodiment 2 of the present invention.

[0029] Figure label:

[0030] 10 nail gun; 12 quick-installation mechanism for firing pin; 20 outer casing; 21 main casing; 211 left outer casing; 2111 left casing notch; 2112 left support protrusion; 2113 slot; 212 right outer casing; 2121 right casing notch; 2122 right support protrusion; 2123 replacement opening; 2131 snap-fit ​​positioning notch; 214 outer casing fastener; 22 firing pin baffle; 221 inner side of baffle; 2211 protrusion; 222 outer side of baffle; 222 anti-slip protrusion; 2222 indicator protrusion; 223 snap-fit; first extension Extension 2231; Second extension 2232; Mounting through hole 224; Support protrusion 225; Baffle fastener 226; Firing pin drive assembly 30; Piston 31; Firing pin connection 311; Hole 312; Spring 32; Nozzle 33; Firing pin receiving part 331; Firing pin receiving groove 3312; Receiving groove opening 3311; Cover plate 332; Regulation frame 34; Baffle mounting hole 341; Guide rod 35; Firing pin 40; Firing pin tail 41; Guide impact part 42; Guide groove 421; Protrusion 43; Pressing protrusion 44. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the following describes in detail the nail gun of the present invention, which facilitates quick replacement and installation of the firing pin, in conjunction with the embodiments and accompanying drawings.

[0032] <Example 1>

[0033] Figure 1 This is a perspective view of the nail gun in an embodiment of the present invention.

[0034] Figure 2 This is a structural breakdown of the nail gun in an embodiment of the present invention. Figure 1 .

[0035] Figure 3 This is a structural breakdown of the nail gun in an embodiment of the present invention. Figure 2 .

[0036] like Figure 1-3 As shown, the nail gun 10 of this embodiment includes a quick-installation mechanism 12 for the firing pin and a firing pin 40. The nail gun 10 also includes conventional internal components such as a motor and a battery, which are not shown in the figure and are disposed within the housing 20. These are existing technologies and will not be described in detail here.

[0037] The quick-change and installation mechanism 12 for quickly replacing and installing the firing pin 40 installed in the nail gun 10. The quick-change and installation mechanism 12 includes a housing 20 and a firing pin drive assembly 30 disposed within the housing 20. In this embodiment, the firing pin 40 moves along a predetermined reciprocating direction under the drive of the firing pin drive assembly 30. Figure 2 The direction indicated by the middle arrow D1 is the direction of the nail shot, and the direction indicated by the arrow D2 is the direction of the spring energy storage, which is opposite to the direction of the nail shot. The reciprocating motion direction includes both the direction of the nail shot and the direction of the spring energy storage.

[0038] The outer casing 20 includes the main casing 21 and the striker baffle 22.

[0039] The main housing 21 houses the aforementioned firing pin drive assembly 30, firing pin 40, motor, battery, and other internal components, and provides protection for these components. The main housing 21 includes a left outer housing 211, a right outer housing 212, and multiple outer housing fasteners 214. Furthermore, in this embodiment, the directions "left," "right," "up," and "down" are defined as the left, right, top, and bottom directions relative to the direction the operator faces when holding the nail gun.

[0040] The left outer casing 211 and the right outer casing 212 can be fitted together to form an integral main casing 21, and can be fastened by multiple outer casing fasteners 214. In this embodiment, the outer casing fasteners 214 are screws that match the casing mounting holes on the left outer casing 211 and the right outer casing 212.

[0041] The top of the left outer housing 211 has a left housing notch 2111, and the right outer housing 212 has a right housing notch 2121 that matches the left housing notch 2111. When the left outer housing 211 and the right outer housing 212 are installed together, the left housing notch 2111 and the right housing notch 2121 are combined to form a replacement opening 213. That is, the main housing 21 has a replacement opening 213 for replacing the firing pin 40.

[0042] The replacement opening 213 is roughly rectangular, with a length greater than the length of the firing pin 40 and a width greater than the width of the firing pin 40, thus facilitating the removal and placement of the firing pin 40 through the replacement opening 213. The end of the replacement opening 213 away from the firing pin 40 has a snap-fit ​​positioning notch 2131.

[0043] The inner surfaces of the left outer casing 211 and the right outer casing 212 also have mesh-like reinforcing ribs and structures for supporting and fixing internal components such as motors. At the same time, the left outer casing 211 and the right outer casing 212 also have multiple through holes for heat dissipation and exhaust. The specific structure of the left outer casing 211 and the right outer casing 212 is existing technology and will not be described in detail.

[0044] The firing pin baffle 22 is detachably mounted on the replacement opening 213. When the firing pin baffle 22 is removed, the replacement opening 213 is exposed, allowing the firing pin 40 to be easily replaced through the replacement opening 213. When the firing pin baffle 22 is installed, the main body housing 21 and the firing pin baffle 22 form an integrated outer shell 20, which has higher overall structural strength and completely encloses the firing pin 40, motor, and other internal components within the outer shell 20, protecting these internal components and also protecting the operator during the nail firing process.

[0045] Figure 4 This is a perspective view of the impact pin baffle in an embodiment of the present invention.

[0046] like Figure 2 , Figure 4 As shown, the firing pin baffle 22 includes an inner side 221 and an outer side 222. When the firing pin baffle 22 is installed on the replacement opening 213, the inner side 221 faces the firing pin 40. The firing pin baffle 22 also includes a snap-fit ​​223, a pair of mounting through holes 224, and a pair of support protrusions 225.

[0047] The inner surface 221 of the baffle has a grid-like reinforcing rib to enhance the structural strength of the firing pin baffle 22. The reinforcing rib is composed of multiple protrusions, one of which is the central protrusion 2211, whose extension direction is consistent with the length direction of the firing pin baffle 22.

[0048] Figure 5 This is a schematic diagram of the structure in which the buckle and the slot engage in an embodiment of the present invention.

[0049] like Figure 4-5 As shown, the buckle 223 is provided on the inner side 221 of the baffle. The buckle 223 matches the slot 2113 of the left outer housing 211. The firing pin baffle 22 and the main housing 21 can be engaged by the buckle 223 and the slot 2113, thereby restricting the movement of the firing pin baffle 22 in the direction of the nail.

[0050] Specifically, the latch 223 includes a first extension 2231 extending generally vertically downward from the inner side 221 of the baffle and a second extension 2232 extending from the end of the first extension 2231 along the length of the firing pin baffle 22. The second extension 2232 extends into the latch groove 2113 to engage the latch 223 with the latch groove 2113. The latch 223 also matches the latch positioning notch 2131, allowing the latch 223 to be positioned at a predetermined insertion position, i.e., the opening of the latch groove 2113, during installation. That is, after aligning the latch 223 with the latch positioning notch 2131 and pressing it down, pushing the firing pin baffle 22 in the direction of the nail firing will engage the latch 223 with the latch groove 2113, and pushing the firing pin baffle 22 in the energy storage direction will disengage the latch 223 from the latch groove 2113.

[0051] The outer side 222 of the baffle has multiple anti-slip protrusions 2211, which are used to increase friction when the ejector pin baffle 22 is pushed to engage or disengage the buckle 223. The multiple anti-slip protrusions 2211 are arranged in the reciprocating motion direction as described above and are evenly spaced, and the length direction of each anti-slip protrusion 2211 is perpendicular to the reciprocating motion direction.

[0052] The mounting through-hole 224 is used to mount the firing pin baffle 22 to the firing pin drive assembly 30. Two baffle fasteners 226 pass through the two mounting through-holes 224 and the baffle mounting hole 331 on the firing pin drive assembly 30, respectively, to securely mount the firing pin baffle 22 to the firing pin drive assembly 30. The mounting through-holes 224 and the snap-fit ​​223 are respectively provided on both sides of the firing pin baffle 22 along its length, wherein the mounting through-hole 224 is provided on the side closer to the firing pin 40.

[0053] The support protrusions 225 are used to support the striker baffle 22 after it is installed on the main housing 21, preventing the striker baffle 22 from getting stuck in the replacement opening 213 due to force. A pair of support protrusions 225 are located on both sides of the striker baffle 22 along its width direction, and the shape and position of the pair of support protrusions 225 correspond to the shape and position of a pair of supporting protrusions (i.e., the aforementioned left supporting protrusion 2112 and right supporting protrusion 2122). After the striker baffle 22 is installed on the main housing 21, the pair of support protrusions 225 abut against the pair of supporting protrusions.

[0054] The firing pin drive assembly 30 is used to drive the firing pin 40 to move in a predetermined reciprocating motion direction. The firing pin drive assembly 30 includes a piston 31, a spring 32, a nozzle 33, a regulating frame 34, and a guide rod 35.

[0055] The piston 31 is used to drive the firing pin 40 to move in a predetermined reciprocating direction. The piston 31 has a hole 312 for fixing the firing pin 40.

[0056] Figure 6yes Figure 2 Enlarged view of the inner part of frame A.

[0057] like Figure 2 , Figure 6 As shown, the piston 31 has a firing pin connecting portion 311 extending upward from its main body perpendicular to the reciprocating motion direction. A hole 312 is provided on the firing pin connecting portion 311 for connecting the firing pin 40. The hole 312 is a rectangular strip-shaped hole, the length of which is perpendicular to the reciprocating motion direction. Furthermore, after installation, the upper surface of the firing pin connecting portion 311 of the piston 31 is parallel to the reciprocating motion direction.

[0058] Spring 32 provides power for the movement of piston 31.

[0059] The nozzle 33 is used to receive the firing pin 40 and to limit the movement of the firing pin 40 when it strikes the nail.

[0060] Figure 6 This is an exploded view of the nozzle structure in an embodiment of the present invention.

[0061] like Figure 2 , Figure 6 As shown, the nozzle 33 includes a firing pin receiving member 331 and a cover plate 332.

[0062] The firing pin receiving member 331 has a groove. When the firing pin receiving member 331 is installed together with the cover plate 332, a firing pin receiving groove 3312 is formed between the groove and the surface of the cover plate 332 facing the groove, for receiving the firing pin 40. The firing pin receiving groove 3312 has a receiving groove opening 3311 aligned with the length direction of the replacement opening 213, for inserting and removing the firing pin 40. Figure 2 As shown, the projection of the replacement opening 213 on the plane where the receiving groove opening 3311 is located covers the receiving groove opening 3311, that is, the replacement opening 213 makes the receiving groove opening 3311 completely exposed.

[0063] The regulating frame 34 is used to regulate and limit the movement of the piston 31 during the nail firing and energy storage processes. The regulating frame 33 is a rectangular frame, and both the piston 31 and the spring 32 are disposed within the regulating frame 33. The piston 31 is held in place by two parallel regulating side plates of the regulating frame 33. The piston 31 is located on the side closest to the nail nozzle, and one end of the spring 32 abuts against the piston 31, while the other end abuts against the side of the regulating frame 33 away from the nail nozzle.

[0064] The regulating frame 34 is provided with the two baffle mounting holes 331 mentioned above near the nail gun nozzle, and the baffle mounting holes 331 are matched with the baffle fasteners 226 mentioned above.

[0065] The guide rod 35 cooperates with the regulating frame 34 to regulate and limit the movement of the piston 31. One end of the guide rod 35 is fixedly mounted on the piston 31, and the other end is connected to the side of the regulating frame 34 away from the nail hole. The extension direction of the guide rod 35 is consistent with the predetermined reciprocating motion direction. A spring 32 is fitted onto the guide rod 35.

[0066] The firing pin 40 is used to strike the nail.

[0067] Figure 7 This is a perspective view of the guiding impact portion of the firing pin in an embodiment of the present invention.

[0068] Figure 8 yes Figure 3 Enlarged view of the inner part of frame A.

[0069] like Figure 2 , Figure 6-8 As shown, the firing pin 40 includes a firing pin tail 41, a guiding impact portion 42, and a protrusion 43, all of which are integrally formed.

[0070] The firing pin tail 41 and protrusion 43 are used to mount the firing pin 40 to the firing pin drive assembly 30. The firing pin tail 41 is square plate-shaped, and the protrusion 43 is also square plate-shaped, but its width is smaller than that of the firing pin tail 41. The protrusion 43 extends vertically from the edge of the firing pin tail 41 away from the guide impact part 42, that is, the extension direction of the protrusion 43 is also perpendicular to the reciprocating motion direction. The strip hole on the piston 31 matches the protrusion 43, and the depth of the strip hole is basically the same as the length of the protrusion 43.

[0071] The guide impact part 42 is used to impact the nail, and is in the shape of a long strip plate, connected to the middle of one side of the mounting part 41. The connection between the mounting part 41 and the guide impact part 42 is arc-shaped.

[0072] One side of the guiding impact part 42 has a guiding groove 421 for regulating the movement direction of the firing pin 40 during nail firing. The extending direction of the guiding groove 421 is consistent with the length direction of the firing pin 40. The aforementioned firing pin receiving groove 3312 also has a groove-shaped structure that matches the guiding groove 421, so the guiding impact part 42 can be inserted into the firing pin receiving groove 3312 from the receiving groove opening 3311 and slidably fitted with the firing pin receiving groove 3312.

[0073] When the firing pin 40 is mounted on the piston 31, the protrusion 43 of the firing pin 40 is fitted into the hole 312 (strip hole) of the piston 31, the tail 41 of the firing pin abuts against the upper surface of the firing pin connecting part 311 of the piston 31, and the guiding impact part 42 is fitted into the firing pin receiving groove 3312. During nail firing (i.e., when the piston 31 moves along the D1 direction) and when the spring 32 is charged (i.e., when the piston moves along the D2 direction), force can be applied to the firing pin 40 through the strip hole. Furthermore, when the piston 31 drives the firing pin 40 to move, the movement direction of the firing pin 40 can be further regulated through the strip hole perpendicular to the direction of movement, preventing it from deviating and improving the stability of the nail firing.

[0074] Therefore, after removing the firing pin baffle 22, the replacement opening 213 is exposed, and the mounting part 41 of the firing pin 40 and the corresponding firing pin fixing part 44 are exposed from the replacement opening 213. At this time, the firing pin 40 to be replaced can be easily removed. After removing the firing pin 40 to be replaced, the receiving groove opening 3311 is exposed from the replacement opening 213. At this time, the new firing pin 40 can be easily inserted into the firing pin receiving groove 3312 through the receiving groove opening 3311 for installation.

[0075] Figure 9 This is a flowchart of replacing the firing pin in an embodiment of the present invention.

[0076] like Figure 9 As shown, based on the aforementioned nail gun 10 and firing pin quick-change mounting mechanism 12, in this embodiment, the process of replacing the firing pin 40 in the nail gun 10 includes the following steps:

[0077] Step S1: Use a screwdriver to remove the two baffle fasteners 226 respectively, and then proceed to step S2;

[0078] Step S2: Press the anti-slip protrusion 2221 on the firing pin baffle 22 and push it in the direction indicated by the protrusion 2222 to disengage the buckle 223 from the slot 2113, and then proceed to step S3.

[0079] Step S3: Remove the firing pin baffle 22 to expose the replacement opening 213, and then proceed to step S4;

[0080] Step S4: Pry out the tail 41 of the firing pin 40 to be replaced, so that the protrusion 43 is disengaged from the hole 312 (strip hole) of the piston 31, and then proceed to step S5.

[0081] Step S5: Remove the replacement firing pin 40 from the firing pin receiving groove 3312, and then proceed to step S6.

[0082] Step S6: Insert the new firing pin 40 into the firing pin receiving groove 3312 from the receiving groove opening 3311, adjust the insertion depth of the firing pin 40 so that the protrusion 43 is aligned with the hole 312 of the piston 31 and embedded, and then proceed to step S7.

[0083] Step S7: Align the firing pin baffle 22 with the replacement opening 213 and align the buckle 223 with the buckle positioning notch 2131. Cover the replacement opening 213 with the firing pin baffle 22 and then proceed to step S8.

[0084] Step S8: Press the anti-slip protrusion 2211 on the firing pin baffle 22 and push it in the opposite direction indicated by the indicator protrusion 2212 to make the buckle 223 engage in the slot 2213, and then proceed to step S9.

[0085] Step S9: Insert the two baffle fasteners 226 into the two mounting through holes 224 of the firing pin baffle 22 respectively and tighten them with a screwdriver, then enter the end state.

[0086] As described above, with the quick-change mounting mechanism 12 for the firing pin and the nail gun 10 of this embodiment, the firing pin baffle 22 can be removed and the firing pin 40 can be replaced conveniently and quickly through the replacement opening 213. The firing pin baffle 22 can also be reinstalled conveniently and quickly, so that the nail gun 10 can be quickly restored to a working state.

[0087] Example 1: Function and Effect

[0088] According to the nail gun provided in this embodiment, which facilitates quick replacement and installation of the firing pin, the firing pin baffle is detachably installed on the opening of the outer casing, and the opening position corresponds to the tail of the firing pin. Therefore, the firing pin baffle can be removed, and the firing pin can be replaced through the opening without disassembling the entire casing and removing and disassembling a large number of internal parts. Since the tail of the firing pin has a protrusion perpendicular to the reciprocating motion direction, and the piston has a hole that matches the protrusion, the two can be connected by fitting and fixing the protrusion of the firing pin into the hole on the piston, without the need for connecting parts such as pins and screws. This reduces the number of parts, avoids the loss of these small parts, and reduces the installation steps, greatly simplifying the operation of replacing the firing pin for ordinary users.

[0089] Specifically, the tail of the firing pin is square plate-shaped, and the protrusion extends vertically from the edge of the tail of the firing pin. The protrusion is also square plate-shaped and its width is smaller than that of the tail of the firing pin. The hole on the piston is a matching strip hole. The length direction of the strip hole is perpendicular to the direction of piston movement. Therefore, the piston and the firing pin can be connected by inserting the square plate-shaped protrusion into the strip hole, which is convenient and quick to install.

[0090] Furthermore, the firing pin's guiding impact part has a guiding groove aligned with the direction of the nail, and the firing pin receiving groove also has a matching structure. Therefore, the movement direction of the firing pin can be regulated during the nail firing process, improving the stability of the nail firing. Moreover, the movement of the firing pin tail can be further regulated through the strip hole on the piston that is perpendicular to the direction of the nail firing, preventing the firing pin from deflecting during the movement and further improving the stability of the nail firing.

[0091] <Example 2>

[0092] Figure 10 This is an exploded view of the nail gun in this embodiment.

[0093] Figure 11 This is a three-dimensional view of the firing pin in this embodiment.

[0094] like Figure 10-11 As shown, this embodiment provides a nail gun 10' that facilitates the replacement and installation of the firing pin. The difference between this embodiment and the first embodiment is that the structure of the firing pin 40 and the firing pin connection part 311 on the piston 31 is different in the nail gun 10' of this embodiment.

[0095] In this embodiment, the firing pin 40 includes a firing pin tail 41, a guiding impact portion 42, a protrusion 43, and a pressing protrusion 44, all of which are integrally formed.

[0096] The tail of the firing pin 41 is also square plate-shaped, and its length is longer than that in Embodiment 1, while its width and thickness are the same as those in Embodiment 1.

[0097] The protrusion 43 is cylindrical and extends from the middle of one side of the firing pin tail 41 perpendicular to the reciprocating motion direction. The firing pin connecting part 311 of the piston 31 also has a hole 312, which is a circular hole that matches the protrusion 43. The length of the protrusion 43 is basically the same as the depth of the circular hole.

[0098] A crimping protrusion 44 is formed on the other side of the tail portion 41 of the firing pin and at a position corresponding to the protrusion 43. The top of the crimping protrusion 44 is arc-shaped. After the firing pin baffle 22 is installed, the top of the crimping protrusion 44 abuts against the central protrusion 2211 on the bottom surface of the firing pin baffle 22. During the entire reciprocating motion, the firing pin baffle 22 can abut against the crimping protrusion 44, thereby further regulating the movement of the firing pin 40.

[0099] The structure of the guide impact part 42 is the same as that in Embodiment 1.

[0100] In this embodiment, the other structures and the replacement steps of the firing pin 40 are the same as in Embodiment 1, so they will not be described again.

[0101] Example 2: Function and Effect

[0102] The nail gun provided in this embodiment, which facilitates quick replacement and installation of the firing pin, also features a detachable firing pin baffle, a protrusion on the firing pin, and a hole on the piston that matches the protrusion, thus enabling convenient replacement and installation of the firing pin.

[0103] Furthermore, in this embodiment, the protrusion of the firing pin is cylindrical, and the hole on the piston is a matching circular hole, making it easier to manufacture. During installation, embedding the cylindrical protrusion into the circular hole is also easier. In addition, the protrusion extends vertically from one side of the firing pin's tail, and a pressing protrusion is also present at a corresponding position on the other side of the firing pin's tail. After the firing pin baffle is installed, the pressing protrusion abuts against the bottom surface of the firing pin baffle, thereby further restricting the movement of the firing pin during the piston-driven firing pin movement, improving the stability and safety of the nail gun.

[0104] The above embodiments are only used to illustrate specific implementations of the present invention, and the present invention is not limited to the scope of the description of the above embodiments.

[0105] In the above embodiments, the firing pin tail 41, the guiding impact part 42, the protrusion 43, and the pressing protrusion 44 are all integrally formed. In an alternative, the protrusion 43 and the pressing protrusion 44 can also be a pin. The firing pin tail 41 has a mounting hole that matches the pin. The pin is inserted into the mounting hole and fixed by welding, which can also achieve the corresponding technical effect.

Claims

1. A nail gun with an easily replaceable firing pin, characterized in that, include: The housing includes a main housing and a striker baffle detachably mounted on a replacement opening in the main housing; A firing pin, installed inside the main housing and located below the firing pin baffle, is used to strike the nail; and The firing pin drive assembly includes a piston for driving the firing pin to move in a predetermined reciprocating direction. The firing pin has a plate-shaped firing pin tail, a protrusion extending from one side of the firing pin tail perpendicular to the reciprocating motion direction, and a guide impact portion for impacting the nail. The piston has a striking pin connection portion, and the striking pin connection portion has a hole that matches the protrusion. The tail of the firing pin abuts against the surface of the firing pin connecting part. The protrusion fits into the hole. The tail of the firing pin is square-shaped, and the protrusion extends from the middle of one surface of the tail of the firing pin. The guiding impact section is in the shape of an elongated plate and is integrally formed with the tail of the firing pin. The width of the tail of the firing pin is greater than that of the guiding impact portion.

2. The nail gun with an easily replaceable firing pin as described in claim 1, characterized in that: in, The protrusion is in the shape of a square plate and is integrally formed with the tail of the firing pin. The hole is a strip-shaped hole that matches the protrusion.

3. The nail gun with an easily replaceable firing pin as described in claim 2, characterized in that: in, The length direction of the strip hole is perpendicular to the reciprocating motion direction.

4. The nail gun with an easily replaceable firing pin as described in claim 1, characterized in that: in, The protrusion is cylindrical and is integrally formed with the tail of the firing pin. The hole is a circular hole that matches the protrusion.

5. The nail gun with an easily replaceable firing pin as described in claim 4, characterized in that: in, A crimping protrusion is formed on the other side of the firing pin tail, and the crimping protrusion is formed at a position corresponding to the protrusion. The crimping protrusion abuts against the bottom surface of the firing pin baffle.

6. The nail gun with an easily replaceable firing pin as described in claim 1, characterized in that: in, The firing pin drive assembly has a firing pin receiving groove that matches the guiding impact portion, the firing pin receiving groove having a receiving groove opening for inserting the firing pin. The projection of the replacement opening onto the plane containing the accommodating slot opening covers the accommodating slot opening.

7. The nail gun with an easily replaceable firing pin as described in claim 6, characterized in that: in, The direction of the accommodating slot opening is consistent with the length direction of the replacement opening. The length of the replacement opening is greater than the length of the firing pin. The width of the replacement opening is greater than the width of the firing pin.

8. The nail gun with an easily replaceable firing pin as described in claim 6, characterized in that, Also includes: Multiple baffle fasteners are used to securely mount the firing pin baffle to the firing pin drive assembly. The surface of the firing pin baffle facing the firing pin has a latch. The main housing has a slot that matches the buckle. The firing pin baffle is engaged with the main housing via the buckle and the slot. The firing pin baffle also has multiple mounting through holes. The striker drive assembly has multiple baffle mounting holes. After the striker baffle engages with the main housing, the baffle fastener passes through the mounting through hole and the baffle mounting hole, thereby detachably installing the striker baffle to the main housing and the striker drive assembly.

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