Nailing depth adjusting mechanism and nail gun

Abstract

The invention provides a nailing depth adjusting mechanism and a nail gun, the nailing depth adjusting mechanism comprises a mounting base, a sliding sleeve assembly, an adjusting assembly and a limiting assembly, the sliding sleeve assembly comprises a sliding sleeve part and a sliding shaft used for triggering a nailing signal, the sliding sleeve part comprises a sliding sleeve and a front end sleeve, and the adjusting assembly comprises a front end connecting part and an adjusting part. Due to the fact that the front-end connecting component is integrally arranged in the assembling hole of the sliding sleeve component in a penetrating mode and provided with the circle of protruding edge, pulling force and bounce borne by the front end of the nailing depth adjusting mechanism act on the protruding edge during nailing, and due to the fact that the front-end connecting component is not a sheet piece and the protruding edge is supported by other parts of the front-end connecting component, the nailing depth adjusting mechanism can be used for nailing. Compared with the prior art, the nailing depth adjusting mechanism has the advantages that the nailing depth adjusting mechanism can bear larger pulling force and rebound force, deformation and fracture failure are not prone to occurring in the long-term use process, the overall service life of the nailing depth adjusting mechanism and the nail gun is longer, safety and reliability are higher during nailing, and overhaul and maintenance time can be saved for a user.

Description

Technical Field

[0001] The invention belongs to the technical field of nail guns, and in particular relates to a nailing depth adjustment mechanism and a nail gun. Background Art

[0002] Nail guns are widely used in many fields such as construction and furniture assembly. They are easy-to-operate fastening tools. In order to make the same nail gun suitable for nailing workpieces of various materials and different assembly requirements, for example, to be able to nail wooden boards of various hardnesses and thicknesses well, some nail guns on the market are currently equipped with a nailing depth adjustment mechanism at the gun nozzle. A part of the mechanism protrudes in front of the gun nozzle, and the length of the protruding part is adjustable. Adjusting the length of this part means adjusting the distance between the front end of the gun nozzle and the target position during nailing, thereby conveniently adjusting the nailing depth.

[0003] Fig. 22 and Fig.23 The three-dimensional diagram and the exploded diagram of the structure of an existing nailing depth adjustment mechanism are respectively shown, and the mechanism includes a sliding sleeve 1, an adjusting screw 2, an adjusting nut 3, and a clamping spring 4. Among them, the adjusting nut 3 has an axially protruding clamping portion, on which a circle of clamping grooves are formed, and the clamping spring 4 is an overall L-shaped metal sheet, a part of which is in the shape of a semicircular ring sheet. After the clamping portion of the adjusting nut 3 passes through the assembly hole on the sliding sleeve 1, the semicircular ring sheet portion of the clamping spring 4 is embedded in the clamping groove, thereby fixing the front end of the mechanism. Such a structure has a fatal disadvantage. The retaining spring 4, which serves as the front-end fixing component and the force transmission component, is relatively thin and lacks strength. When the lithium electric spring nail gun is working, the strong pulling force and rebound force mainly act on the arc surface with a small contact area of ​​the retaining spring 4, causing a large pressure. Therefore, after multiple nailing operations, the retaining spring 4 is prone to deformation or even breakage. Once the retaining spring 4 breaks, the sliding sleeve 1, the adjusting screw 2 and the adjusting nut 3 are no longer connected and fixed by them and are separated from each other, and the overall structure of the nail depth adjustment mechanism falls apart and fails. Therefore, in order to avoid mechanism failure and ensure the safety and reliability of the nail gun during use, it is necessary to frequently check and replace the retaining spring 4, which brings an additional burden to the user. Even if regular maintenance is performed, the above-mentioned risks cannot be completely avoided when the nailing force is large. The user may be injured during the nailing operation, resulting in serious consequences. Summary of the invention

[0004] The present invention is made to solve the above problems, and aims to provide a nailing depth adjustment mechanism with higher reliability and safety. The present invention adopts the following technical solutions: The present invention provides a nailing depth adjustment mechanism for a nail gun, which is arranged on the gun nozzle of the nail gun and is used to adjust the nailing depth. The mechanism has the following technical features: it comprises: a mounting seat fixed on the gun nozzle, a sliding sleeve assembly, an adjustment assembly and a limit assembly, wherein the sliding sleeve assembly comprises: a sliding sleeve component, comprising a sliding sleeve and a front end sleeve, one end of the sliding sleeve has a sleeve connection hole and is slidably sleeved on the gun nozzle through the sleeve connection hole, and the other end is located above the gun nozzle and has an assembly hole, the front end sleeve is connected to the sleeve connection hole and has a through nail extension hole, and the nail extension hole is connected to the nail hole; and a sliding shaft , which can be axially slidably arranged on the mounting seat to trigger a nailing signal, and the adjusting component includes: a front end connecting component, which is inserted into the assembly hole and has a circle of annular convex edges for abutting against the assembly hole, and one end of the sliding shaft is connected to the front end connecting component; and an adjusting component, which is sleeved on the front end connecting component and is respectively located on both sides of the assembly hole with the annular convex edges, and is used to drive the front end connecting component to rotate relative to the sliding shaft, so as to adjust the length of the sliding sleeve component protruding from the gun nozzle, and the limiting component is used to limit the relative position of the adjusting component and the front end connecting component.

[0005] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein the front end connecting component has a cylindrical connecting component main body, the annular convex edge is arranged on one end of the connecting component main body, the connecting component main body has a circle of annular grooves, the side surface of the connecting component main body has one or more mating surfaces, the mating surface is a plane, and the adjusting component has: a clamping hole, whose cross-sectional shape matches the cross-sectional shape of the connecting component main body at the mating surface, and whose inner circumferential surface includes a pair of relatively arranged arc surfaces; and a pair of limit member mounting holes, respectively forming long strip openings on the arc surfaces, the limit assembly includes a pair of limit pins, which are inserted into a pair of the limit member mounting holes, and the middle part of the limit pin is placed in the clamping hole through the long strip opening, and the middle part of the limit pin is embedded in the annular groove, thereby fixing the front end connecting component and the adjusting component in the axial direction.

[0006] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein the limit pin is an elastic cylindrical pin, the limit member mounting hole is a through hole matching the limit pin, an annular surface is formed around the assembly hole, and a plurality of pairs of ball limit grooves are distributed on the annular surface, the adjustment component also has a pair of clamping member accommodating grooves, which are respectively arranged on both sides of the clamping hole, and the adjustment assembly also includes: two clamping members, which are respectively arranged in a pair of the clamping member accommodating grooves, one end of which abuts against the bottom of the clamping member accommodating groove; and two positioning beads, each of the positioning beads abuts against the other end of the clamping member and the annular surface, and the ball limit groove matches the positioning ball.

[0007] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein the front end connecting component has a connecting piece main body part in the shape of a cylinder, the annular convex edge is arranged on one end of the connecting piece main body part, the connecting piece main body part has a circle of annular grooves, the side surface of the connecting piece main body part has one or more matching surfaces, the matching surface is a plane, and the adjusting component has: a clamping hole, the cross-sectional shape of which matches the cross-sectional shape of the connecting piece main body part at the matching surface, and the inner side surface thereof includes a pair of planes arranged oppositely and parallel to each other; and a pair of pressing members accommodating The holes are respectively arranged on both sides of the clamping hole, and the limiting assembly includes: a pair of limiting fixing parts, respectively embedded in the pair of pressing part accommodating holes; and a limiting sheet, having a limiting hole consistent with the shape of the clamping hole and a pair of fixing part embedding holes arranged on both sides of the limiting hole, the limiting hole has a pair of straight edges that are oppositely arranged and parallel to each other, the straight edges are perpendicular to the plane, and a pair of straight edges are embedded in the annular groove, one end of a pair of limiting fixing parts are respectively embedded in a pair of fixing part embedding holes, so as to fix the front end connecting component and the adjusting component in the axial direction.

[0008] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein one axial end of the adjusting component has a circular groove, the limiting plate is in the shape of a circular plate, and is embedded in the circular groove, an annular surface is formed around the assembly hole, and a plurality of pairs of ball limiting grooves are distributed on the annular surface, and the adjusting component also includes: two clamping members, which are respectively arranged in a pair of the clamping member accommodating holes, and one end of each of which abuts against the corresponding limiting fixing member; and two positioning beads, each of the positioning beads abuts against the other end of the clamping member and the annular surface, and the ball limiting groove matches the positioning ball.

[0009] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein one end of the sliding shaft has a square notch and an embedding groove arranged next to the square notch, the embedding groove is used to embed and install the sensing component used to trigger the nailing signal, and the mounting seat has: a sliding shaft sleeve hole, the one end of the sliding shaft is inserted into the sliding shaft sleeve hole; a pair of pin holes, which are respectively connected to the sliding shaft sleeve holes and are used to set a sliding shaft limit pin, the sliding shaft limit pin passes through the square notch, and the width of the square notch is greater than the diameter of the sliding shaft limit pin.

[0010] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein the sliding sleeve component includes: a sliding sleeve, which is in a right-angle Z shape as a whole, has a sleeve hole for being sleeved on the gun nozzle at one end, and has the assembly hole at the other end; and a front end sleeve, which is detachably connected to the sleeve hole, the gun nozzle has a nail outlet hole for shooting nails, and the front end sleeve has a through nail outlet extension hole, which is connected to the nail outlet hole.

[0011] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein the front end sleeve includes: a sleeve connecting portion, which is used to be connected to the sleeve hole; and a gun nozzle extension portion, one end of which is connected to the sleeve connecting portion, and the cross-sectional size of the gun nozzle extension portion gradually decreases from the one end to its outer end portion, and the outer end portion of the gun nozzle extension portion has a square notch, one end of the nail extension hole is located in the square notch, and the aperture of the nail extension hole gradually decreases from the one end to the outer end portion.

[0012] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein the front end sleeve includes: a sleeve connecting portion for connecting to the sleeve hole; and a gun nozzle extension portion, including a cylindrical portion connected to the sleeve connecting portion and an arc-shaped plate-shaped portion extending outward from one side of one end of the cylindrical portion, the other side of the one end of the cylindrical portion has an inclined surface inclined relative to the axial direction of the cylindrical portion, and one end of the nail extension hole is located on the one end of the cylindrical portion.

[0013] The present invention provides a nail gun having the following technical features: a gun nozzle for shooting out nails; and the above-mentioned nailing depth adjustment mechanism for the nail gun, which is arranged on the gun nozzle and is used to adjust the nailing depth.

[0014] The present invention has the following technical effects.

[0015] The nailing depth adjustment mechanism for a nail gun and the nail gun provided by the present invention include a mounting seat, a sleeve assembly, an adjustment assembly and a limit assembly, wherein the sleeve assembly includes a sleeve component and a sliding shaft for triggering a nailing signal, and the adjustment assembly includes a front end connecting component and an adjustment component. Since the front end connecting component is integrally inserted into the assembly hole of the sleeve component, and the front end connecting component has a circle of annular convex edges, when nailing, the pulling force and rebound force exerted on the front end of the nailing depth adjustment mechanism will act on the annular convex edges. Since the front end connecting component is not a thin sheet member, and the annular convex edges are also supported by other parts of the front end connecting component, it can withstand greater pulling force and rebound force, and is not prone to deformation, breakage and failure during long-term use. Therefore, the nailing depth adjustment mechanism has a longer service life, higher safety and reliability during nailing, and can also save users time for inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the partial structure of the nail gun in the first embodiment of the present invention.

[0017] Figure 2 It is a three-dimensional diagram of the hole nail member in the first embodiment of the present invention.

[0018] Figure 3 It is a three-dimensional diagram of the nailing depth adjustment mechanism in the first embodiment of the present invention.

[0019] Figure 4 It is a structural exploded view of the nailing depth adjustment mechanism in the first embodiment of the present invention.

[0020] Figure 5 It is a cross-sectional view of the nailing depth adjustment mechanism in the first embodiment of the present invention.

[0021] Figure 6 It is a three-dimensional diagram of the sliding sleeve in the first embodiment of the present invention.

[0022] Figure 7 It is a stereoscopic diagram of the sliding shaft in the first embodiment of the present invention.

[0023] Figure 8 It is a stereoscopic diagram of the first front end sleeve in the first embodiment of the present invention.

[0024] Fig. 9 It is a stereoscopic diagram of the second front end sleeve in the first embodiment of the present invention.

[0025] Fig.10 It is a stereoscopic diagram of the third front end sleeve in the first embodiment of the present invention.

[0026] Fig.11 It is a stereoscopic diagram of each of the four front end sleeves in the first embodiment of the present invention.

[0027] Fig.12It is a stereoscopic diagram of the front end connecting component in the first embodiment of the present invention.

[0028] Fig.13 It is a three-dimensional diagram of the adjusting component in the first embodiment of the present invention.

[0029] Fig.14 It is a cross-sectional view of the adjusting component in the first embodiment of the present invention.

[0030] Fig.15 It is a three-dimensional diagram of the nailing depth adjustment mechanism in the second embodiment of the present invention.

[0031] Fig.16 It is a structural exploded view of the nailing depth adjustment mechanism in the second embodiment of the present invention.

[0032] Fig.17 It is a cross-sectional view of the nailing depth adjustment mechanism in the second embodiment of the present invention.

[0033] Fig.18 It is a stereoscopic diagram of the front end connecting component in the second embodiment of the present invention.

[0034] Fig.19 It is a three-dimensional diagram of the adjusting component in the second embodiment of the present invention.

[0035] Fig. 20 It is a three-dimensional diagram of the limiting piece in the second embodiment of the present invention.

[0036] Fig.21 It is a three-dimensional diagram of the limiting fixing member in the second embodiment of the present invention.

[0037] Fig. 22 It is a stereoscopic diagram of a nailing depth adjustment mechanism in the prior art.

[0038] Fig.23 It is a structural exploded view of a nailing depth adjustment mechanism in the prior art.

[0039] Reference numerals: Nail gun 100; nailing depth adjustment mechanism 10; mounting seat 11; plate-shaped portion 111; cylindrical portion 112; sliding shaft limiting pin 113; sliding shaft sleeve hole 112a; pin hole 112b; sleeve assembly 12; sleeve 121; sleeve portion 1211; first sleeve portion 12111; second sleeve portion 12112; sleeve hole 12113; extension portion 1212; mounting guide groove 1212a; mounting portion 1213; annular portion 12131; ball limiting hole 1213a; assembly hole 1213 13b; rectangular parallelepiped portion 12132; sliding shaft 122; sleeve connection portion 1221; locking groove 1221a; sliding push portion 1222; mounting seat connection portion 1223; square notch 1223a; cylindrical embedding groove 1223b; reset drive member 123; first front end sleeve 124; second front end sleeve 124'; third front end sleeve 124''; fourth front end sleeve 124'''; gun nozzle extension portion 1241; cylindrical portion 12411; inclined surface 12411a; arc plate portion 12 412; notch 1241a; nail extension hole 1241b; side through hole 1241c; sleeve connecting part 1242; guide plate 125; adjustment assembly 13; front connecting part 131; connecting part main body 1311; annular groove 1311a; first matching surface 1311b; second matching surface 1311c; connecting part ring 1312; annular convex edge 13121; sliding shaft assembly hole 1313; adjustment part 132; clamping hole 1321; pressing part accommodating groove 1322; stopper mounting hole 1323 ; Long strip opening 1323a; Processing track 1323N; Pressing member accommodating hole 1324; Circular groove 1325; Pressing member 133; Positioning bead 134; Limiting assembly 14; Limiting pin 141; Stop ring member 142; Limiting plate 143; Limiting hole 1431; Fixing member embedding hole 1432; Limiting fixing member 144; Spring limiting end 1441; Fixing member main body 1442; Embedding end 1443; Gun nozzle 20; Mounting plate 21; Nail hole member 22; Nail hole member front end 221; Nail hole 221a. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the nailing depth adjustment mechanism for a nail gun and the nail gun of the present invention are specifically described below in conjunction with embodiments and drawings.

[0041] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0042] <Example 1> The present embodiment provides a nailing depth adjustment mechanism for a nail gun, which is arranged in the nail gun and is used to adjust the nailing depth of the nail gun. The gun body of the nail gun has a gun mouth for shooting nails, and the nailing depth adjustment mechanism for the nail gun is installed at the gun mouth, which is used to adjust the distance between the outer end of the gun mouth and the target nailing position, thereby adjusting the nailing depth. The front end of the gun mouth is cylindrical. In the present embodiment, the nail gun is a lithium electric spring nail gun.

[0043] Figure 1 It is a three-dimensional diagram of the partial structure of the nail gun in this embodiment.

[0044] like Figure 1 As shown, the nail gun 100 includes a gun nozzle 20 and a nailing depth adjustment mechanism 10 .

[0045] The gun nozzle 20 includes a mounting plate 21 which is roughly trapezoidal and a nail hole member 22. The upper surface of the mounting plate 21 is flat, and the lower part has a mounting groove extending along the length direction of the gun nozzle 20. The mounting plate 21 also has a plurality of mounting holes, which are all connected to the above-mentioned mounting groove.

[0046] Figure 2 It is a three-dimensional diagram of the nail hole member in this embodiment.

[0047] like Figure 2 As shown, the nail hole member 22 is a long strip, one end of which is mounted in the mounting groove of the mounting plate 21 and fixed by a plurality of fasteners (screws), and the other end is a front end 221 of the nail hole member, which is cylindrical and protrudes outside the front end of the mounting plate 21 along the nail shooting direction D1. A through nail hole 221a is formed in the middle of the front end 221 of the nail hole member.

[0048] Figure 3 is a three-dimensional diagram of the nailing depth adjustment mechanism in this embodiment, Figure 4 is a structural exploded view of the nailing depth adjustment mechanism in this embodiment, Figure 5 It is a cross-sectional view of the nailing depth adjustment mechanism in this embodiment.

[0049] like Figures 3 to 5As shown, the nailing depth adjustment mechanism 10 includes a mounting seat 11 , a sliding sleeve assembly 12 , an adjustment assembly 13 , and a limit assembly 14 .

[0050] The mounting seat 11 is fixed on the upper surface of the mounting plate 21. The mounting seat 11 includes a plate-like portion 111 and a cylindrical portion 112 formed in the middle of the upper surface of the plate-like portion 111. The plate-like portion 111 is provided with a plurality of mounting holes, and can be fixedly mounted on the mounting plate 21 by corresponding fasteners. The cylindrical portion 112 has a sliding shaft sleeve hole 112a with a uniform diameter and through, and the axial direction of the sliding shaft sleeve hole 112a is consistent with the nailing direction D1. A pin hole 112b is also provided on both sides of the sliding shaft sleeve hole 112a, and the connecting direction of the two pin holes 112b is perpendicular to the D1 direction.

[0051] The sliding sleeve assembly 12 comprises a sliding sleeve 121, a sliding shaft 122, a reset driving member 123, a front sleeve 124, a guide plate 125 and a sensing component (not shown in the figure). The sliding sleeve 121 and the front sleeve 124 are fixedly assembled together to form a sliding sleeve component.

[0052] Figure 6 It is a three-dimensional diagram of the sliding sleeve in this embodiment.

[0053] like Figure 6 As shown, the sliding sleeve 121 includes an integrally formed sleeve portion 1211 , an extension portion 1212 , and a mounting portion 1213 . When viewed from one side, the sliding sleeve 121 is generally in a right-angled Z shape.

[0054] The sleeve connection part 1211 includes a coaxial first sleeve connection part 12111 and a second sleeve connection part 12112. The first sleeve connection part 12111 is generally annular, and an external thread is formed on the outer peripheral surface of the first sleeve connection part 12111. The second sleeve connection part 12112 is generally cylindrical and has an outer diameter smaller than the first sleeve connection part 12111. A through sleeve connection hole 12113 with a uniform aperture is formed in the middle of the sleeve connection part 1211, which is used for the sliding sleeve 11 to be slidably sleeved on the cylindrical outer end of the gun nozzle 20.

[0055] The extension portion 1212 extends from one side of the second sleeve portion 12112, and its extension direction is consistent with the axial direction of the sleeve portion 1211. The middle portion of the extension portion 1212 is roughly rectangular, and the connecting portion between the extension portion 1212 and the sleeve portion 111 is arc-shaped. An installation guide groove 1212a is formed on the upper surface of the extension portion 1212. The installation guide groove 1212a is an arc-shaped bottom groove with a very shallow groove depth. Its extension direction is consistent with the axial direction of the sleeve hole 12113, and in the width direction of the extension portion 1212, the installation guide groove 1212a is arranged close to one side of the extension portion 1212.

[0056] The mounting portion 1213 extends from one end of the extension portion 1212 away from the sleeve portion 1211, and its extension direction is perpendicular to the surface direction of the extension portion 1212 and also perpendicular to the axial direction of the sleeve hole 12113. The mounting portion 1213 is in the shape of a special-shaped flat plate, having a circular ring portion 12131 and a rectangular parallelepiped portion 12132 extending from one side of the circular ring portion 12131. The circular ring portion 12131 is evenly distributed with a plurality of ball limiting holes 1213a, four in this embodiment; the inner ring of the circular ring portion 12131 forms an assembly hole 1213b. The size of the rectangular parallelepiped portion 12132 corresponds to the cross-sectional size of the extension portion 1212, and the rectangular parallelepiped portion 12132 is relatively close to one side of the radial direction of the annular portion 12131, so that the annular portion 12131 is not coaxial with the sleeve hole 12113 (that is, it is eccentric relative to the sleeve hole 12113). The outer end surface 12134 of the mounting portion 1213 is generally a plane, and the plane is perpendicular to the axial direction of the sleeve hole 1113.

[0057] Figure 7 It is a three-dimensional diagram of the sliding shaft in this embodiment.

[0058] like Figure 7 As shown, the sliding shaft 122 includes a sliding sleeve connecting portion 1221 , a sliding push portion 1222 , and a mounting seat connecting portion 1223 that are integrally formed and coaxially arranged.

[0059] The sleeve connection part 1221 is used for assembly connection with the sleeve 121. Its front end is in the shape of a truncated cone, and its middle part is in the shape of a cylinder with uniform diameter. A circle of concave retaining grooves 1221a is formed near the front end. The circumferential cross section of the retaining groove 1221a is rectangular, and the connection position between the groove bottom and the side wall is chamfered. In addition, the outer peripheral surface of the sleeve connection part 1221 is formed with external threads.

[0060] The sliding push portion 1222 includes a plurality of coaxially arranged flat cylindrical portions, wherein the flat cylindrical portion closest to the sleeve connecting portion 1221 has the largest diameter, and its diameter is larger than the diameter of the sleeve connecting portion 1221 and the diameter of the mounting seat connecting portion 1223 .

[0061] The mounting seat connection portion 1223 is generally cylindrical in shape, with a diameter greater than that of the sleeve connection portion 1221 , and has a square notch 1223 a on one side and a cylindrical embedding groove 1223 b near the outer end.

[0062] A sliding shaft limiting pin 113 is installed at a pair of pin holes 112b of the mounting seat 11, passing through the square notch 1223a, so that the sliding shaft 122 cannot rotate axially. The diameter of the sliding shaft limiting pin 113 is substantially equal to the depth of the square notch 1223a, and is smaller than the width of the square notch 1223a. The cooperation of the two can also limit the moving distance of the sliding shaft 122.

[0063] The sensing component is in the shape of a flat cylinder and is embedded in the cylindrical groove 1223b. A signal sensor corresponding to the sensing component is provided in the gun body of the nail gun 100. When the sliding shaft 122 slides to a predetermined position in the opposite direction of D1 (i.e., when it is retracted), the sensing component passes through the sensing area of ​​the signal sensor, thereby triggering a nailing signal, and after the trigger (switch) of the nail gun is pulled, its motor is energized, and the nail gun starts to work and nail, thereby making the nailing process safer. The sensing component can be a magnet, and the signal sensor can be a Hall sensor.

[0064] The reset driving member 123 is a spring, which is mounted on the mounting seat connecting portion 1223 of the sliding shaft 12, one end of which is in contact with the sliding push portion 1222, and the other end is in contact with the mounting seat 11. The spring is used to drive the sliding sleeve assembly 12 to move along the nailing direction D1, so as to reset it. After nailing is completed, the sliding shaft 122 is driven by the reset driving member 123 to move in the direction D1, so that the sensing component leaves the sensing area of ​​the signal sensor.

[0065] The guide plate 125 is L-shaped as a whole, and has two substantially perpendicular plate portions, one of which is in the shape of a rectangular plate and abuts against the substantially flat upper surface of the nail hole member 22; the other plate portion has a semicircular end with a protrusion on the side, and has a circular hole on the plate portion, which is sleeved on and abuts against the sliding push portion 1222. During the sliding process of the sliding sleeve component, the guide plate 125 can play an auxiliary guiding role, allowing it to keep moving in the D1 direction or the opposite direction.

[0066] Figure 8 It is a stereoscopic view of the first front end sleeve in this embodiment.

[0067] like Figure 8 As shown, the first front end sleeve 124 is installed on the front end of the slide sleeve 121. The front end sleeve 124 includes a gun nozzle extension portion 1241 and a sleeve connecting portion 1242 which are coaxially arranged.

[0068] The overall shape of the nozzle extension 1241 can be regarded as a cut cylinder. From the end where the nozzle extension 1241 is connected to the sleeve connecting portion 1242 to its outer end, the cross-sectional size of the nozzle extension 1241 gradually decreases. The cross-section near the front end of the nozzle extension 1241 is in the shape of a long strip, so that it can be extended into a recessed or narrow target nailing position when in use. A rectangular notch 1241a is also provided at the front end of the gun nozzle extension 1241, and a through nail extension hole 1241b is formed inside the gun nozzle extension 1241. The portion of the nail extension hole 1241b connected to the nail hole 211a is a tapered hole portion. From the end of the gun nozzle extension 1241 connected to the sleeve connection portion 1242 to its outer end, the aperture of the tapered hole portion gradually decreases so as to guide the ejected nails. The rest of the nail extension hole 1241b is a circular hole portion, and the aperture of the circular hole portion is consistent with the aperture of the small end of the tapered hole portion. One end of the nail extension hole 1241b is located at the notch 1241a.

[0069] The sleeve connection portion 1242 is in a circular ring shape, with an inner circumference formed with an internal thread and an outer circumference formed with a plurality of ridges to increase friction when the user holds and operates.

[0070] After being assembled on the gun nozzle 20, the nail extension hole 1241b is axially aligned and connected with the nail hole 221a of the gun nozzle piece 30. When nailing, the nail passes through the nail hole 221a and the nail extension hole 1241b in sequence and then emerges to the outside.

[0071] In this embodiment, the first front sleeve 124 is detachably threadedly connected to the front end of the sliding sleeve 121. According to the required nailing depth, the material and surface structure of the target nailing position, etc., a plurality of front sleeves with different overall lengths and slightly different structures can be provided accordingly, so that the user can replace and use different front sleeves as needed. Several other front sleeves will be exemplarily shown below.

[0072] Fig. 9 It is a stereoscopic view of the second front end sleeve in this embodiment.

[0073] like Fig. 9 As shown, the second front end sleeve 124' also has a gun nozzle extension 1241 and a sleeve connection 1242, the difference is that the gun nozzle extension 1241 is in two cylindrical sections, wherein the diameter of the cylindrical section near the outer end is relatively larger, and the front end of the gun nozzle extension 1241 does not have the above-mentioned notch, and the front end surface 12411 perpendicular to the axial direction thereof has a plurality of positioning grooves 12411a, which are cylindrical grooves distributed around the nail extension hole 1241b, and the inner diameter of the positioning grooves 12411a is smaller than the aperture of the nail extension hole 1241b. Compared with the first front end sleeve 124, the overall length (axial length) of the second front end sleeve 124' is longer.

[0074] Fig.10 It is a stereoscopic view of the third front end sleeve in this embodiment.

[0075] like Fig.10 As shown, the third front end sleeve 124'' also has a muzzle extension portion 1241 and a sleeve connecting portion 1242, the difference being that the muzzle extension portion 1241 is cylindrical, and the front end of the muzzle extension portion 1241 does not have the above-mentioned notch, a circle of step-like structure is formed in the nail extension hole 1241b, and the aperture of the nail extension hole 1241b is larger than the aperture of the nail extension hole 1241b in the first front end sleeve 124.

[0076] Fig.11 It is a stereoscopic view of the fourth front end sleeve in this embodiment.

[0077] like Fig.11 As shown, the fourth front end sleeve 124''' also has a gun nozzle extension portion 1241 and a sleeve connecting portion 1242, the difference being that the gun nozzle extension portion 1241 is in the shape of a cylinder with a missing part as a whole, and includes a cylindrical portion 12411 in the shape of a missing corner cylinder and an arc-shaped plate-shaped portion 12412. The arc-shaped plate-shaped portion 12412 extends from one end surface of the cylindrical portion 12411 along the axial direction of the cylindrical portion 12411, and its extension length is greater than the length of the cylindrical portion 12411. The other side of the end surface of the cylindrical portion 12411 has a crescent-shaped inclined surface 12411a inclined relative to its axial direction, and the inclined surface and the arc-shaped plate-shaped portion 12412 enable inclined nailing to be more conveniently performed (i.e., the nailing direction is inclined relative to the surface of the target nailing position). Compared with the first to third front end sleeves, the fourth front end sleeve 124 ′″ has a longer overall length, wherein the length of the cylindrical portion 12411 is close to the length of the muzzle extension portion 1241 of the first front end sleeve 1241 .

[0078] The nail gun can be equipped with the above several front end sleeves at the same time, so that the user can select the most suitable one to assemble and use as required, or it can only be equipped with one or several of them. In an alternative, the sliding sleeve 121 and the front end sleeve can also be made into one component.

[0079] The adjusting assembly 13 includes a front connecting component 131 , an adjusting component 132 , a pressing member 133 and a positioning bead 134 .

[0080] Fig.12 It is a stereoscopic view of the front end connecting component in this embodiment.

[0081] like Fig.12 As shown, the front end connection component 131 (adjusting nut inner sleeve) includes a connection piece body portion 1311 and a connection piece ring portion 1312 which are formed integrally.

[0082] The connector body 1311 is generally cylindrical in shape, and the connector ring 1312 is formed on one axial end of the connector body 1311, and the edge of the other end of the connector body 1311 has a chamfer. A circle of annular grooves 1311a is formed at a position slightly close to the other end in the middle of the connector body 1311, and the connection position between the groove bottom and the side wall of the annular groove 1311a is arc-shaped, and the groove width of the annular groove 1311a is greater than its groove depth. The side surface of the connector body 1311 also has a pair of first mating surfaces 1311b and a pair of second mating surfaces 1311c, both of which are planes. The pair of first mating surfaces 1311b and the pair of second mating surfaces 1311c are arranged opposite to each other in the radial direction of the connector body 1311. A first mating surface 1311b and a second mating surface 1311c on the same side are respectively arranged on both sides of the annular groove 1311a, and the two are coplanar. That is, all the first mating surfaces 1311b and a pair of second mating surfaces 1311c are parallel to each other. The annular groove 1311a divides the connector body 1311 into two sections, one long and one short. The first mating surface 1311b is located on the side of the longer section, and along the axial direction of the connector body 1311, the length of the first mating surface 1311b is substantially equal to or slightly greater than half of the length of the section; the second mating surface 1311c is located on the side of the shorter section, and the length of the second mating surface 1311c is substantially the same as the length of the section. The width of the first mating surface 1311b and the width of the second mating surface 1311c are approximately half of the diameter of the connector body 1311.

[0083] The connector ring 1312 is in the shape of a circular ring, and its outer end away from the connector body 1311 is in the shape of a conical ring; its portion close to the connector body 1311 is in the shape of a circular ring plate with a uniform diameter, and the outer diameter of this portion is greater than the outer diameter of the connector body 1311, so the connector ring 1312 has a circle of protruding annular ridges 13121. The thickness of the annular ridge 13121 (the thickness along the axial direction of the connector body 1311) is greater than its protruding height (the relative protruding height in the radial direction of the connector body 1311).

[0084] The maximum outer diameter of the connecting member main body 1311 is substantially equal to or slightly smaller than the aperture of the assembly hole 1213b of the sliding sleeve 121, and the outer diameter of the annular convex edge 13121 is larger than the aperture of the assembly hole 1213b.

[0085] The front end connecting component 131 also has a sliding shaft assembly hole 1313 which passes through the axial direction thereof. The inner circumferential surface of the sliding shaft assembly hole 1313 has an internal thread which can be threadedly connected to the sliding sleeve connecting portion 1221 of the sliding shaft 122. Therefore, the length of the entire mechanism can be adjusted by relative rotation between the front end connecting component 131 and the sliding shaft 122, thereby adjusting the length of the front end sleeve 124 protruding from the outside of the gun nozzle 20.

[0086] Fig.13 is a three-dimensional diagram of the adjusting component in this embodiment, Fig.14 2 is a cross-sectional view of the adjusting component in this embodiment.

[0087] like Fig.13 and Fig.14 As shown, the adjusting component 132 (adjusting nut) is generally annular in shape, and a plurality of ridges are distributed on its outer circumference to increase friction when the user operates. The adjusting component 132 also has a snap-in hole 1321, a pair of clamping member accommodating grooves 1322, and a pair of limit member mounting holes 1323.

[0088] The clamping hole 1321 is arranged at the center axis of the adjusting component 132 and penetrates along the axial direction thereof. The axial cross-sectional shape of the clamping hole 1321 matches the axial cross-sectional shape of a pair of planes of the front connecting component 131, and is used to drive the front connecting component 131 to rotate. The inner side wall of the clamping hole 1321 includes two driving surfaces 1321a (planes) that are arranged oppositely and parallel to each other, and two arc-shaped surfaces that are arranged oppositely. When the adjusting component 132 is sleeved on the front connecting component 131, the two driving surfaces 1321a are in contact with the first mating surface 1311b and the second mating surface 1311c of the corresponding side, respectively.

[0089] The pressing member accommodating groove 1322 is a cylindrical groove, and its groove bottom is conical. A pair of pressing member accommodating grooves 1322 are respectively arranged on both sides of a pair of driving surfaces 1321 a of the clamping hole 1321 .

[0090] The position-limiting member installation holes 1323 are through holes, and the extension directions of a pair of position-limiting member installation holes 1323 are parallel to each other and are respectively arranged on both sides of a diameter line of the adjustment component 132, that is, the position-limiting member installation holes 1323 do not pass through the central axis of the adjustment component 132. Each position-limiting member installation hole 1323 forms two elliptical openings on the outer circumference of the adjustment component 132, and forms a long strip (long and curved elliptical) opening 1323a on the inner circumference of the adjustment component 132. In an alternative solution, one end of the position-limiting member installation hole 1323 may not be through.

[0091] The clamping member 133 and the positioning bead 134 are used to position the rotation angle of the adjustment member 132 so that the user can adjust it with a predetermined angle stroke (corresponding to the predetermined nailing depth adjustment amount). For example, the front end protrusion length increases by 5 mm for every 90 degrees of forward rotation. In this embodiment, the clamping member 133 is a spring and the positioning bead 134 is a steel ball. The two clamping members 133 are respectively arranged in two clamping member receiving grooves 1322, one end of which abuts against the bottom of the clamping member receiving groove 1322, and the other end abuts against a circular surface of the circular ring portion 12131 of the sliding sleeve 121 through the positioning bead 134. When the user rotates the adjusting component 132, the positioning bead 134 can slide or roll along the annular surface, reducing the rotation resistance of the adjusting component 132; after the adjusting component 132 is rotated to a certain position, the positioning bead 134 is pressed into the ball limit hole 1213a by the clamping member 133, so that the sliding sleeve component and the adjusting component 132 are in a relatively stable state.

[0092] The limiting assembly 14 includes a pair of limiting pins 141 and a stop ring component 142 .

[0093] The limit pin 141 is an elastic long columnar member, whose length and diameter are adapted to the limit member mounting holes 1323, and is respectively assembled in the two limit member mounting holes 1323. The middle part of the limit pin 141 is located in the snap-in hole 1321 of the adjusting component 132 through the long strip opening 1323a, and is embedded in the annular groove 1311a of the front end connecting component 131, thereby fixing the relative position between the adjusting component 132 and the front end connecting component 131 so that no axial relative movement occurs.

[0094] The stop ring component 142 is an open wire retaining ring, which is embedded in the retaining groove 1221a at the end of the sliding shaft 122 and partially protrudes from the outside of the groove. It is used as a blocking point to limit the adjustment distance and prevent the adjustment component 132 from being disengaged from the sliding shaft 122 due to excessive adjustment.

[0095] like Figure 5As shown, the sleeve component (sleeve 121 and front sleeve 124) can be slidably mounted on the front end of the gun nozzle 20, and one end of the sliding shaft 122 can be axially movably mounted in the mounting hole of the mounting seat 11. The connecting member body 1311 of the front connecting member 131 is inserted into the assembly hole 1213b of the sleeve 121, and the front connecting member 131 is threadedly connected with the other end of the sliding shaft 122. The adjusting member 132 is mounted on the connecting member body 1311 of the front connecting member 131 through its clamping hole 1321. The annular convex edge 13121 and the adjusting member 132 are respectively located on both sides of the assembly hole 1213b. The pressing member 133 (pressing spring) is accommodated in the pressing member accommodating groove 1322 of the adjusting component 132, one end of which abuts against the groove bottom, and the other end abuts against the annular portion 12131 of the sliding sleeve 121 through the positioning bead 134. Under the action of the pressing member 133, the annular convex edge 13121 abuts against the edge of the assembly hole 1213b. The reset driving member 123 (reset spring) is sleeved on the sliding shaft 122 and abuts against the sliding push portion 1222 and the mounting seat 11 respectively.

[0096] Before use, a suitable front sleeve can be selected according to the required nailing depth and assembled to the front end of the slide sleeve 121, and then the length of the front sleeve protruding outside the front end of the gun nozzle 20 can be further adjusted by rotating the adjustment component 132, so that the nail gun 100 can be applied to scenes with different nailing depth requirements. When the adjustment component 132 is rotated, the adjustment component 132 drives the front connecting component 131 to rotate through its clamping hole 1321, and the sliding shaft 122 cannot rotate axially under the limiting action of the sliding shaft limiting pin 113, so the front connecting component 131 rotates relative to the sliding shaft 122, so that the overall length of the mechanism changes.

[0097] When nailing, the front end of the front sleeve 124 is pressed against the target nailing position, and the sleeve part moves in the opposite direction of D1 under the pressing force, driving the sensing part on the sliding shaft 122 to move to the sensing area of ​​the signal sensor, and then the trigger is pulled to shoot the nail. After nailing is completed, the nail gun 100 is moved away from the target nailing position, the front end of the front sleeve 124 is no longer subjected to force, and the sleeve part moves along the D1 direction under the action of the reset drive 123, driving the sensing part on the sliding shaft 122 to move away from the sensing area.

[0098] Embodiment 1 has the following functions and effects.

[0099] The nailing depth adjustment mechanism for a nail gun and the nail gun provided according to the present embodiment include a mounting seat, a sleeve assembly, an adjustment assembly and a limit assembly, wherein the sleeve assembly includes a sleeve component and a sliding shaft for triggering a nailing signal, and the adjustment assembly includes a front end connecting component and an adjustment component. Since the front end connecting component is integrally inserted into the assembly hole of the sleeve component, and the front end connecting component has a circle of annular convex edges, when nailing, the pulling force and rebound force exerted on the front end of the nailing depth adjustment mechanism will act on the annular convex edges. Since the front end connecting component is not a thin sheet member, and the annular convex edges are also supported by other parts of the front end connecting component, it can withstand greater pulling force and rebound force, and is not prone to deformation, breakage and failure during long-term use. Therefore, the nailing depth adjustment mechanism has a longer service life, higher safety and reliability during nailing, and can also save users time for inspection and maintenance.

[0100] In the embodiment, the side surface of the front end connecting component has a plurality of planes, and the middle portion of the adjusting component has a non-circular clamping hole matching the front end connecting component. The front end connecting component can be stably driven to rotate through the cooperation of the planes of the two.

[0101] Furthermore, the front-end connecting component has a circle of annular grooves, and the limit assembly includes a pair of limit pins. The limit pins are inserted into the limit member mounting holes on the adjusting component. The middle part of the limit pins is located in the snap-in hole and embedded in the annular groove, so that the front-end connecting component and the adjusting component can be fixed in the axial direction, and the assembly is very convenient, and quick disassembly and assembly can be achieved during assembly and maintenance.

[0102] Furthermore, the limit assembly also includes a stop ring component, and a matching locking groove is provided at one end of the sliding shaft, which can limit the adjustment amount of the adjusting component to prevent the component from falling out due to excessive adjustment. At the same time, the other end of the sliding shaft is also limited by a sliding shaft limit pin, so that the overall reliability of the mechanism is higher.

[0103] Furthermore, the adjustment component also includes a compression spring and a positioning ball, and there is a ball limit groove around the assembly hole of the sliding sleeve. Therefore, the positioning ball and the ball limit groove can conveniently allow the user to adjust the length to a predetermined amount. When the positioning ball is embedded in the ball limit groove, the user can obviously feel the increase in rotational resistance, so the length adjustment amount can be easily known. At this time, the mechanism is in a relatively stable state, which also makes the nailing process safer.

[0104] Furthermore, the sliding sleeve assembly also includes a guide plate supported on the upper surface of the nail hole member, which can support and guide the rear end of the sliding sleeve member during the sliding process, thereby further ensuring that the sliding sleeve member only moves stably in the nail shooting direction and the opposite direction, and will not slide under slight skewness and cause component wear, which is beneficial to further improve the service life of the mechanism.

[0105] Furthermore, the front end sleeve is detachably threadedly connected to the front end of the sliding sleeve component, and the nail gun can be equipped with multiple front end sleeves of different lengths and front end structures. The user can choose a suitable one to assemble on the nail gun according to the material, surface structure, required nailing depth, required nailing angle, etc. of the target nailing position. The operation is very convenient, which makes the nail gun have a wider range of applications.

[0106] <Example 2> The present embodiment provides a nailing depth adjustment mechanism for a nail gun and a nail gun. In the present embodiment, the same symbols are assigned to the same components as those in the first embodiment and the corresponding descriptions are omitted.

[0107] Although the nailing depth adjustment mechanism 100 of the first embodiment has the above advantages, the processing of the adjustment component 132 is relatively difficult. Fig.11 As shown, a pair of limit member mounting holes 1323 need to be processed on the adjusting component 132, and a long strip opening 1323a for exposing the limit pin 141 needs to be formed on the inner circumference of the adjusting component 132. For this reason, when drilling a hole in the metal adjusting component 132 with a drill bit, the drill bit needs to be processed on the inner circumference (arc surface) of the adjusting component 132. The drill bit is easily affected by the arc surface and tilted to one side, forming a processing trajectory as shown in 1323N. When this happens during processing, the drill bit may break. If such an adjusting component 132 (i.e., having an inclined limit member mounting hole 1323) is used, not only will the assembly of the limit pin 141 become inconvenient, but also due to the poor shape of the long strip opening, the limit pin 141 cannot fix the adjusting component 132 and the front connecting component 131 well.

[0108] The solution of this embodiment is intended to further solve the above-mentioned problem.

[0109] Fig.15 is a three-dimensional diagram of the nailing depth adjustment mechanism in this embodiment, Fig.16 is a structural exploded view of the nailing depth adjustment mechanism in this embodiment, Fig.17 It is a cross-sectional view of the nailing depth adjustment mechanism in this embodiment.

[0110] like Figures 15 to 17 As shown, in the nailing depth adjustment mechanism 10 of this embodiment, the structures of the adjustment component 13 and the limiting component 14 are different.

[0111] The adjusting assembly 13 also includes a front connecting component 131 , an adjusting component 132 , a pressing member 133 and a positioning bead 134 , but the front connecting component 131 and the adjusting component 132 are different from those in the first embodiment.

[0112] Fig.18 It is a stereoscopic view of the front end connecting component in this embodiment.

[0113] like Fig.18 As shown, in the front end connecting component 131 of the present embodiment, the annular groove 1311a is arranged at one end of the connecting member main body 1311 (the end away from the annular convex edge 13121), and accordingly, the annular groove 1311a divides the connecting member main body 1311 into two sections with a larger length difference, and the lengths of the first mating surface 1311b and the second mating surface 1311c also change accordingly, and the length of the first mating surface 1311b is approximately 2 / 3 of the length of the longer section.

[0114] Fig.19 2 is a three-dimensional diagram of the adjusting component in this embodiment.

[0115] like Fig.19 As shown, the adjusting component 132 of this embodiment has a clamping hole 1321 and a pair of pressing member accommodating holes 1324. The structure of the clamping hole 1321 is the same as that in the first embodiment. The pressing member accommodating holes 1324 are circular through holes, which are also respectively arranged on both sides of the two driving surfaces of the clamping hole 1321. In addition, one axial end of the adjusting component 132 has a shallow circular groove 1325, the cross-sectional size of which is close to (slightly smaller than) the outer diameter of the adjusting component 132, and the bottom of the circular groove 1325 is basically a plane.

[0116] That is, the adjustment component 132 of the present embodiment does not need to be processed with the above-mentioned limiter mounting hole 1323, and the drill bit does not need to contact the arc surface, so the processing difficulty is greatly reduced.

[0117] The position limiting assembly 14 of this embodiment includes a position limiting piece 143, a pair of position limiting fixing members 144, and a stop ring component 142. The stop ring component 142 is the same as that in the first embodiment.

[0118] Fig. 20 It is a three-dimensional diagram of the limiting piece in this embodiment.

[0119] like Fig. 20 As shown, the limiting piece 143 is in the shape of a flat sheet, and its outer circumference is circular, and its outer diameter is substantially the same as the inner diameter of the circular groove 1325. The middle part of the limiting piece 143 has a limiting hole 1431, and the cross-sectional shape of the limiting hole 1431 is substantially the same as the axial cross-sectional shape of the clamping hole 1321, that is, it has two opposite and mutually parallel straight sides and two opposite arc-shaped sides. Four fixing member embedding holes 1432 are evenly distributed along the circumference of the edge of the limiting piece 143, and all of them are circular through holes. In this embodiment, two of the fixing member embedding holes 1432 are respectively located beside the two straight sides of the limiting hole 1431.

[0120] Fig.21 2 is a three-dimensional diagram of the position limiting fixing member in this embodiment.

[0121] like Fig.21 As shown, the limiting fixing member 144 includes a spring limiting end 1441, a fixing member main body 1442, and an interlocking end 1443 which are coaxially arranged in sequence. The three parts are all cylindrical and have rounded edges. The outer diameter of the fixing member main body 1442 is larger than the other two parts and matches the aperture of the clamping member accommodating hole 1324; the outer diameter of the interlocking end 1443 matches the aperture of the fixing member interlocking hole 1432.

[0122] During assembly, first pass the front connecting component 131 through the assembly hole 1213b, then fit the adjusting component 132 onto the front connecting component 131, then sequentially place the positioning bead 134, the pressing member 133, and the limiting fixing member 144 into the pressing member accommodating hole 1324 of the adjusting component 132, then align the limiting hole 1431 on the limiting sheet 143 with the clamping hole 1321 on the adjusting component 132 along the axial direction and keep their relative angles to fit the limiting sheet 143 onto the front connecting component 131, and then press the limiting sheet 143 toward the direction of the front connecting component 131 (overcoming the friction between the limiting sheet 143 and the adjusting component 132). The spring force of the clamping member 133 is applied until the limiting piece 143 reaches the annular groove 1311a, and then the limiting piece 143 is rotated 90 degrees so that the two straight sides of the limiting hole 1431 are inserted into the annular groove 1311a. At this time, the limiting piece 143 is embedded in the circular groove 1325 of the adjusting component 132, and the two limiting fixing members 144 are respectively pressed toward the limiting piece 143 under the action of the spring force, and the engaging ends 1443 thereof are respectively embedded in the two fixing member embedding holes 1432 of the limiting piece 143, thereby locking the adjusting component 132 and the front end connecting component 131 in the axial direction.

[0123] Before starting to use, you can also choose to assemble a suitable front sleeve as needed, and then you can rotate the adjustment component 132 to further adjust the nailing depth. When the adjustment component 132 is rotated, the front connecting component 131 is driven to rotate relative to the sliding shaft 122 through its clamping hole 1321 to adjust the length of the mechanism protruding from the front end of the gun nozzle 20. During the rotation process, since the limiting plate 143 is connected to the adjustment component 132 through a pair of limiting fixings 144, the limiting plate 143 will also rotate with the adjustment component 132 and the front connecting component 131, and will not produce axial rotation relative to the front connecting component 131, so the limiting plate 143 will not be disengaged during the adjustment process. After the adjustment is completed, the nailing operation process is basically the same as that in the first embodiment.

[0124] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0125] Embodiment 2 has the following functions and effects.

[0126] According to the nailing depth adjustment mechanism for a nail gun and the nail gun provided by the present embodiment, on the basis of the functions and effects of the first embodiment, a limiting plate with a limiting hole is adopted, and the shape of the limiting hole is consistent with the clamping hole. Therefore, the locking between the adjusting component and the front connecting component can be achieved through the limiting plate, and there is no need to process the limiting component mounting hole of the first embodiment on the adjusting component. Therefore, the processing difficulty of the adjusting component is greatly reduced. During assembly, it is only necessary to put the limiting plate on, press it in, and then rotate it 90 degrees so that it is stuck in the annular groove of the front connecting component. Therefore, such a structural design still maintains the convenience of assembly, and can achieve quick disassembly and assembly when assembly and maintenance are required.

[0127] Furthermore, one end of the adjustment component has a groove matching the limit plate, and the assembled limit plate is embedded in the groove, which not only makes the overall mechanism more streamlined and beautiful, but also prevents the limit plate from being affected by external factors, thereby further improving the reliability of the mechanism.

[0128] The above embodiments are only used to illustrate the specific implementation of the present invention, and the present invention is not limited to the description scope of the above embodiments. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

[0129] For example, in the above embodiment, the nail gun is a lithium electric spring nail gun. In an alternative solution, the above nailing depth adjustment mechanism can also be used in other types of nail guns, as long as the nail gun has a gun nozzle structure similar to the above.

[0130] In the above embodiment, the pressing member and the reset driving member are both springs. In an alternative solution, other elastic components may also be used.

Claims

1. A nailing depth adjustment mechanism, arranged on the gun nozzle of a nail gun, for adjusting the nailing depth, wherein the gun nozzle has a nail outlet hole for ejecting nails, characterized in that: include: The mounting seat, the slide assembly, the adjustment assembly and the limit assembly fixed on the gun nozzle, Wherein, the sliding sleeve assembly comprises: A sleeve component, comprising a sleeve and a front sleeve, wherein one end of the sleeve has a sleeve hole and is slidably sleeved on the gun nozzle through the sleeve hole, and the other end is located above the gun nozzle and has an assembly hole, the front sleeve is connected to the sleeve hole and has a through nail extension hole, and the nail extension hole is connected to the nail hole; and A sliding shaft is axially slidably disposed on the mounting seat and is used to trigger a nailing signal. The adjustment component comprises: a front end connecting component, which is inserted into the assembly hole and has a convex edge for abutting against the assembly hole, and one end of the sliding shaft is connected to the front end connecting component; and The adjusting component is mounted on the front connecting component and is located on both sides of the assembly hole together with the convex edge, and is used to drive the front connecting component to rotate relative to the sliding shaft, so as to adjust the length of the sliding sleeve component protruding from the gun nozzle. The limiting assembly is used to limit the relative position of the adjusting component and the front end connecting component.

2. The nailing depth adjustment mechanism according to claim 1, characterized in that: in, The front end connecting component has a cylindrical connecting member main body, and the flange is arranged on one end of the connecting member main body. The main body of the connector has a circle of annular grooves, and the side surface of the main body of the connector has one or more matching surfaces, and the matching surfaces are planes. The adjusting component has: A clamping hole, the cross-sectional shape of which matches the cross-sectional shape of the main body of the connector at the mating surface, and the inner peripheral surface of which includes a pair of arc-shaped surfaces arranged opposite to each other; and A pair of position-limiting member mounting holes are respectively formed with long strip openings on the arc surface. The limit assembly includes a pair of limit pins, which are inserted into a pair of limit member mounting holes, and the middle part of the limit pin is placed in the clamping hole through the long strip opening, and the middle part of the limit pin is embedded in the annular groove, thereby fixing the front end connecting component and the adjusting component in the axial direction.

3. The nailing depth adjustment mechanism according to claim 2, Features: Wherein, the limit pin is an elastic cylindrical pin. The limiting member mounting hole is a through hole matching the limiting pin. A circular ring surface is formed around the assembly hole, and a plurality of pairs of ball limiting grooves are distributed on the circular ring surface. The adjusting component also has a pair of pressing member accommodating grooves, which are respectively arranged on both sides of the clamping hole. The adjustment component also includes: Two pressing members are respectively disposed in a pair of the pressing member accommodating grooves, and one end of each pressing member abuts against the bottom of the pressing member accommodating groove; and Two positioning beads, each of which is respectively in contact with the other end of the pressing member and the annular surface, and the ball limiting groove matches the positioning beads.

4. The nailing depth adjustment mechanism according to claim 1, Features: The front end connecting component has a cylindrical connecting member body, and the flange is arranged on one end of the connecting member body. The main body of the connector has a circle of annular grooves, and the side surface of the main body of the connector has one or more matching surfaces, and the matching surfaces are planes. The adjusting component has: a snap-fit ​​hole, the cross-sectional shape of which matches the cross-sectional shape of the main body of the connector at the mating surface, and the inner side surface of which includes a pair of planes that are oppositely disposed and parallel to each other; and A pair of pressing member accommodating holes are respectively arranged on both sides of the clamping hole, The limiting component comprises: a pair of position-limiting fixing members, respectively embedded in the pair of pressing member accommodating holes; and The limiting plate has a limiting hole having the same shape as the clamping hole and a pair of fixing member embedding holes arranged on both sides of the limiting hole. The limiting hole has a pair of straight edges that are oppositely arranged and parallel to each other, the straight edges are perpendicular to the plane, and the pair of straight edges are embedded in the annular groove, and one end of a pair of limiting fixing members are respectively embedded in a pair of fixing member embedding holes, thereby fixing the front end connecting component and the adjusting component in the axial direction.

5. The nailing depth adjustment mechanism according to claim 4, Features: Wherein, one axial end of the adjusting component has a circular groove, The limiting piece is in the shape of a circular piece and is embedded in the circular groove. A circular ring surface is formed around the assembly hole, and a plurality of pairs of ball limiting grooves are distributed on the circular ring surface. The adjustment component also includes: Two pressing members are respectively arranged in a pair of the pressing member accommodating holes, and one end of each pressing member abuts against the corresponding limiting fixing member; and Two positioning beads, each of which is respectively in contact with the other end of the pressing member and the annular surface, and the ball limiting groove matches the positioning beads.

6. The nailing depth adjustment mechanism according to claim 1, Features: One end of the sliding shaft has a square notch and a groove next to the square notch, and the groove is used for fitting and installing a sensing component for triggering the nailing signal. The mounting seat has: A sliding shaft sleeve hole, wherein the one end of the sliding shaft is inserted into the sliding shaft sleeve hole; A pair of pin holes are respectively connected to the sliding shaft sleeve holes and are used to set the sliding shaft limit pins. The sliding shaft limit pins pass through the square notch. The width of the square notch is greater than the diameter of the sliding shaft limiting pin.

7. The nailing depth adjustment mechanism according to claim 1, characterized in that: in, The sliding sleeve is in a right-angle Z shape as a whole. The front end sleeve is detachably connected to the sleeve hole.

8. The nailing depth adjustment mechanism according to claim 7, characterized in that: in, The front end sleeve comprises: A sleeve connecting portion, used to connect with the sleeve hole; and The gun nozzle extension part has one end connected to the sleeve connecting part, and the cross-sectional size of the gun nozzle extension part gradually decreases from the one end to the outer end thereof, and the outer end of the gun nozzle extension part has a square notch, One end of the nail extension hole is located in the square notch, and the hole diameter of the nail extension hole gradually decreases from the one end to the outer end.

9. The nailing depth adjustment mechanism according to claim 7, characterized in that: in, The front end sleeve comprises: A sleeve connecting portion, used to connect with the sleeve hole; and The gun nozzle extension portion includes a cylindrical portion connected to the sleeve connecting portion and an arc-shaped plate-shaped portion extending outward from one side of one end of the cylindrical portion, and the other side of the one end of the cylindrical portion has an inclined surface inclined relative to the axial direction of the cylindrical portion. One end of the nail extension hole is located on the one end of the cylindrical part.

10. A nail gun, characterized in that: include: The mouth of the gun is used to shoot out nails; as well as The nailing depth adjustment mechanism is arranged on the gun nozzle and is used to adjust the nailing depth. Wherein, the nailing depth adjustment mechanism is the nailing depth adjustment mechanism according to any one of claims 1-9.

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