Nailing depth adjusting mechanism for nail gun and nail gun

Abstract

The nailing depth adjusting mechanism for the nail gun comprises an installation 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 adjusting assembly comprises a front end connecting part and an adjusting part, and the front end connecting part is connected with the limiting assembly. Due to the fact that the front-end connecting part is integrally arranged in the assembling hole of the sliding sleeve part in a penetrating mode and provided with the annular protruding edge, pulling force and bounce borne by the front end of the nailing depth adjusting mechanism act on the annular protruding edge during nailing, and the front-end connecting part is not a thin sheet part, so that the nailing depth adjusting mechanism is not damaged. The annular convex edge is also supported by other parts of the front-end connecting component, so that the annular convex edge can bear larger pulling force and bounce and is not easy to deform and break and lose efficacy in a long-term use process, and therefore, the nailing depth adjusting mechanism and the nail gun are longer in overall service life, higher in safety and reliability during nailing, and higher in practicability. And the overhaul and maintenance time can be saved for a user.

Description

Technical Field

[0001] The utility model belongs to the technical field of nail guns, and particularly relates to a nailing depth adjustment mechanism for a nail gun and the nail gun. Background Art

[0002] A nail gun is a commonly used fastening tool. In order to make the nail gun suitable for nailing workpieces made of a variety of different materials and with different assembly requirements, some nail guns are currently equipped with a nailing depth adjustment mechanism at the gun nozzle. A part of the mechanism protrudes from the front of the gun nozzle, and the length of the protruding part is adjustable. Adjusting the length of the protruding part means adjusting the distance between the front end of the gun nozzle and the target nailing position during nailing, thereby adjusting the nailing depth.

[0003] Figure 22 A conventional nailing depth adjustment mechanism is shown (in an exploded view). The mechanism comprises a sliding sleeve 1, an adjusting screw 2, an adjusting nut 3, and a retaining spring 4. The retaining spring 4 is an L-shaped sheet metal member, with a portion thereof in the form of a semicircular ring. After the retaining portion of the adjusting nut 3 passes through the assembly hole in the sliding sleeve 1, the semicircular ring portion of the retaining spring 4 engages with the retaining groove, thereby achieving assembly and securing the front end of the mechanism. The above structure has an important problem. The retaining spring 4 serves as both a front-end fixing component and a force transmission component. However, since the retaining spring 4 itself is relatively thin and lacks strength, when the nail gun is working, the strong pulling force and rebound force mainly act on the curved surface of the retaining spring 4, causing a large pressure. Therefore, after multiple nailing, 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. Therefore, in order to avoid the mechanism from falling apart 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 with frequent maintenance, it is difficult to completely avoid the above risks. Utility Model Content

[0004] The present invention is designed 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:

[0005] The utility model 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 to the gun nozzle, a sliding sleeve assembly, an adjustment assembly, and a limit assembly, wherein the sliding sleeve assembly comprises: a sliding sleeve component slidably mounted on the gun nozzle, one end of which protrudes from the front end of the gun nozzle and the other end is located above the gun nozzle and has an assembly hole; and a sliding shaft axially slidably mounted on the mounting seat and used to trigger a nailing signal. The adjustment assembly comprises: a liner sleeve inserted into the assembly hole and having an annular ridge for abutting the assembly hole, one end of the sliding shaft being connected to the liner sleeve; and an adjustment component mounted on the liner sleeve, and the annular ridge being located on both sides of the assembly hole, respectively, for driving the liner sleeve to rotate relative to the sliding shaft, thereby adjusting the length of the sliding sleeve component protruding from the gun nozzle. The limit assembly is used to limit the relative position of the adjustment component and the liner sleeve.

[0006] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such technical features, wherein the liner kit has a cylindrical connector body, the annular convex edge is arranged on one end of the connector body, the connector body has a circle of annular grooves, the side surface of the connector body has one or more matching surfaces, the matching surface is a plane, and the adjustment component has: a clamping hole, the cross-sectional shape of which matches the cross-sectional shape of the connector body at the matching surface, and the inner side surface of which includes a pair of oppositely arranged and mutually parallel planes; and a pair of pressing member containers 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 a pair of the pressing part accommodating holes; and a limiting plate, 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, thereby fixing the lining kit and the adjustment component in the axial direction.

[0007] 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, and a circular surface is formed around the assembly hole, and multiple pairs of ball limiting grooves are distributed on the circular surface. The adjusting component also includes: two pressing members, which are respectively arranged in a pair of the pressing 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 pressing member and the circular surface, and the ball limiting groove matches the positioning ball.

[0008] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such a technical feature, wherein the inner side surface of the clamping hole further includes a pair of oppositely arranged arcuate surfaces, and the limiting hole further has a pair of oppositely arranged arcuate edges. After assembly is completed, the pair of planes on the inner side surface of the clamping hole are respectively perpendicular to the pair of straight edges of the limiting hole.

[0009] The nailing depth adjustment mechanism for a nail gun provided by the utility model can also have such technical features, wherein the liner kit has a cylindrical connecting piece main body, the annular convex edge is arranged on one end of the connecting piece main body, the connecting piece main body has a circle of annular groove, the side of the connecting piece main body has one or more mating surfaces, and 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 piece main body at the mating surface, and its inner circumferential surface includes a pair of oppositely 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 passed through 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 liner kit and the adjusting component in the axial direction.

[0010] The nailing depth adjustment mechanism for a nail gun provided by the utility model 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 multiple pairs of ball limit grooves are distributed on the annular surface, and 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, 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 respectively abuts against the other end of the clamping member and the annular surface, and the ball limit groove matches the positioning ball.

[0011] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such a technical feature, wherein the limit pin is a cylindrical pin with elasticity, and a pair of the limit member mounting holes are arranged parallel to each other.

[0012] 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 for triggering 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, respectively connected to the sliding shaft sleeve holes, for setting 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.

[0013] The nailing depth adjustment mechanism for a nail gun provided by the present invention may also have such a technical feature, wherein the sliding sleeve component includes a sliding sleeve, which is in a right-angled Z shape as a whole, has a sleeve hole at one end for being sleeved on the gun nozzle, and has the assembly hole at the other end.

[0014] The utility model provides a nail gun, which has the following technical features: a gun nozzle for shooting 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.

[0015] Function and effect of utility model

[0016] According to the utility model, the nailing depth adjustment mechanism for a nail gun and the nail gun provided include a mounting seat, a sliding sleeve assembly, an adjustment assembly and a limit assembly, wherein the sliding sleeve assembly includes a sliding sleeve part and a sliding shaft for triggering a nailing signal, and the adjustment assembly includes a lining kit and an adjustment part. Since the lining kit is entirely inserted into the assembly hole of the sliding sleeve part, and the lining kit 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 lining kit is not a thin sheet part, and the annular convex edges are also supported by other parts of the lining kit, 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, is safer and more reliable during nailing, and can also save users time for inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a perspective view of the structure of the nail gun in the first embodiment of the present invention;

[0018] Figure 2 This is a three-dimensional diagram of the nailing member in the first embodiment of the present utility model;

[0019] Figure 3 This is a three-dimensional diagram of the nailing depth adjustment mechanism in the first embodiment of the present invention;

[0020] Figure 4 This is an exploded view of the structure of the nailing depth adjustment mechanism in the first embodiment of the present invention;

[0021] Figure 5 This is a cross-sectional view of the nailing depth adjustment mechanism in the first embodiment of the present invention;

[0022] Figure 6 It is a three-dimensional diagram of the sliding sleeve in the first embodiment of the present utility model;

[0023] Figure 7 It is a three-dimensional diagram of the sliding shaft in the first embodiment of the present utility model;

[0024] Figure 8 This is a three-dimensional diagram of the first front end sleeve in the first embodiment of the present utility model;

[0025] Figure 9 This is a three-dimensional diagram of the second front end sleeve in the first embodiment of the present utility model;

[0026] Figure 10 This is a three-dimensional diagram of the third front end sleeve in the first embodiment of the present utility model;

[0027] Figure 11 This is a three-dimensional diagram of the fourth front end sleeve in the first embodiment of the present utility model;

[0028] Figure 12 This is a three-dimensional diagram of the lining kit in the first embodiment of the present invention;

[0029] Figure 13 It is a three-dimensional diagram of the adjustment component in the first embodiment of the present utility model;

[0030] Figure 14 It is a cross-sectional view of the adjusting component in the first embodiment of the present utility model;

[0031] Figure 15 This is a three-dimensional diagram of the nailing depth adjustment mechanism in the second embodiment of the present utility model;

[0032] Figure 16 This is an exploded view of the structure of the nailing depth adjustment mechanism in the second embodiment of the present invention;

[0033] Figure 17 This is a cross-sectional view of the nailing depth adjustment mechanism in the second embodiment of the present invention;

[0034] Figure 18 This is a three-dimensional diagram of the lining kit in the second embodiment of the present utility model;

[0035] Figure 19 It is a three-dimensional diagram of the adjustment component in the second embodiment of the present utility model;

[0036] Figure 20 This is a three-dimensional diagram of the limiting piece in the second embodiment of the present utility model;

[0037] Figure 21 This is a three-dimensional diagram of the position-limiting fixing member in the second embodiment of the present utility model;

[0038] Figure 22 It is a structural exploded view of a nailing depth adjustment mechanism in the prior art.

[0039] Reference numerals:

[0040] Nail gun 100; nailing depth adjustment mechanism 10; mounting seat 11; plate 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 1 213b; 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 sleeve 124; second front sleeve 124'; third front sleeve 124"; fourth front sleeve 124"'; gun nozzle extension portion 1241; cylindrical portion 12411; inclined surface 12411a; arcuate plate portion 12 412; notch 1241a; nail extension hole 1241b; side through hole 1241c; sleeve connecting portion 1242; guide plate 125; adjustment assembly 13; liner sleeve 131; connector body 1311; annular groove 1311a; first mating surface 1311b; second mating surface 1311c; connector ring portion 1312; annular ridge 13121; sliding shaft assembly hole 1313; adjustment component 132; snap-fit hole 1321; pressing member accommodating groove 1322; limiter 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 component 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

[0041] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the nailing depth adjustment mechanism for a nail gun and the nail gun of the present invention are described in detail below with reference to the embodiments and drawings.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] <Example 1>

[0044] This embodiment provides a nailing depth adjustment mechanism for a nail gun, which is installed in the nail gun and is used to adjust the nailing depth of the nail gun. The nail gun body has a nozzle for ejecting nails. The nailing depth adjustment mechanism is installed at the nozzle and is used to adjust the distance between the outer end of the nozzle and the target nailing position, thereby adjusting the nailing depth. The front end of the nozzle is cylindrical. In this embodiment, the nail gun is a lithium-ion spring nail gun.

[0045] Figure 1 It is a three-dimensional diagram of the partial structure of the nail gun in this embodiment.

[0046] like Figure 1 As shown, the nail gun 100 includes a gun nozzle 20 and a nailing depth adjustment mechanism 10 .

[0047] The gun nozzle 20 includes a mounting plate 21 that is roughly trapezoidal and a nail hole piece 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 multiple mounting holes, all of which are connected to the above-mentioned mounting groove.

[0048] Figure 2 It is a three-dimensional diagram of the nail hole component in this embodiment.

[0049] like Figure 2 As shown, the nail hole member 22 is an elongated strip, one end of which is mounted in the mounting groove of the mounting plate 21 and secured by multiple fasteners (screws). The other end is a nail hole member front end 221. The nail hole member front end 221 is cylindrical and protrudes outside the front end of the mounting plate 21 along the nail injection direction D1. A through nail hole 221a is formed in the middle of the nail hole member front end 221.

[0050] Figure 3 : is a three-dimensional diagram of the nailing depth adjustment mechanism in this embodiment, Figure 4 This is an 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.

[0051] like Figures 3 to 5 As shown, the nailing depth adjustment mechanism 10 includes a mounting seat 11 , a sliding sleeve assembly 12 , an adjustment assembly 13 , and a limiting assembly 14 .

[0052] The mounting base 11 is fixed to the upper surface of the mounting plate 21. It comprises a plate-shaped portion 111 and a cylindrical portion 112 formed in the middle of the upper surface of the plate-shaped portion 111. The plate-shaped portion 111 is provided with multiple mounting holes and can be fixed to the mounting plate 21 using corresponding fasteners. The cylindrical portion 112 has a sliding shaft sleeve hole 112a with a uniform diameter and extends through it. The axial direction of the sliding shaft sleeve hole 112a aligns with the nail driving direction D1. A pin hole 112b is provided on either side of the sliding shaft sleeve hole 112a, and the line connecting the two pin holes 112b is perpendicular to the direction D1.

[0053] The sliding sleeve assembly 12 includes a sliding sleeve 121, a sliding shaft 122, a reset driver 123, a front sleeve 124, a guide plate 125 and a sensing component (not shown). The sliding sleeve 121 and the front sleeve 124 are fixedly assembled together to form a sliding sleeve component.

[0054] Figure 6 2 is a three-dimensional diagram of the sliding sleeve in this embodiment.

[0055] 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.

[0056] The connecting portion 1211 comprises a coaxial first connecting portion 12111 and a second connecting portion 12112. The first connecting portion 12111 is generally annular and has external threads formed on its outer circumference. The second connecting portion 12112 is generally cylindrical and has a smaller outer diameter than the first connecting portion 12111. A through-hole 12113 of uniform diameter is formed in the center of the connecting portion 1211 for slidably connecting the slide 11 to the cylindrical outer end of the muzzle 20.

[0057] Extension portion 1212 extends from one side of second sleeve portion 12112, its extension direction aligned with the axial direction of sleeve portion 1211. The middle portion of extension portion 1212 is roughly rectangular, and the connection portion between extension portion 1212 and sleeve portion 111 is arc-shaped. An installation guide groove 1212a is formed on the upper surface of extension portion 1212. Installation guide groove 1212a is a shallow, arc-shaped bottom groove. Its extension direction is aligned with the axial direction of sleeve hole 12113, and installation guide groove 1212a is located near one side of extension portion 1212 along its width.

[0058] The mounting portion 1213 extends from the end of the extension portion 1212 away from the sleeve portion 1211. 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 a special-shaped flat plate, comprising an annular portion 12131 and a rectangular parallelepiped portion 12132 extending from one side of the annular portion 12131. The annular portion 12131 is evenly distributed with multiple ball retaining holes 1213a, four in this embodiment; the inner ring of the annular portion 12131 forms an assembly hole 1213b. The dimensions of the rectangular portion 12132 correspond to the cross-sectional dimensions of the extension portion 1212, and the rectangular portion 12132 is relatively close to one radial side of the annular portion 12131, so that the annular portion 12131 is not coaxial with the sleeve hole 12113 (i.e., it is eccentric relative to the sleeve hole 12113). The outer end surface 12134 of the mounting portion 1213 is generally flat, and this plane is perpendicular to the axial direction of the sleeve hole 1113.

[0059] Figure 7 It is a three-dimensional diagram of the sliding shaft in this embodiment.

[0060] 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.

[0061] The sliding sleeve connection portion 1221 is used for assembly and connection with the sliding sleeve 121. Its front end is truncated cone-shaped, while the middle section is cylindrical with a uniform diameter. A recessed retaining groove 1221a is formed near the front end. The retaining groove 1221a has a rectangular cross-section in the circumferential direction, and the bottom of the groove is chamfered where it meets the side wall. Furthermore, the outer surface of the sliding sleeve connection portion 1221 is formed with external threads.

[0062] The sliding push portion 1222 includes a plurality of flat cylindrical portions coaxially arranged in sequence, wherein the flat cylindrical portion closest to the sliding sleeve connection portion 1221 has the largest diameter, and its diameter is larger than the diameter of the sliding sleeve connection portion 1221 and the diameter of the mounting seat connection portion 1223 .

[0063] The mounting seat connection portion 1223 is generally cylindrical in shape, with a diameter larger than that of the sleeve connection portion 1221 . One side of the mounting seat connection portion 1223 has a square notch 1223 a and a cylindrical embedding groove 1223 b near the outer end.

[0064] A sliding shaft limiting pin 113 is mounted in a pair of pin holes 112b of the mounting base 11 and extends through the square notch 1223a, thereby preventing axial rotation of the sliding shaft 122. The diameter of the sliding shaft limiting pin 113 is substantially equal to the depth of the square notch 1223a and smaller than the width of the square notch 1223a. The combination of the two limits the travel distance of the sliding shaft 122.

[0065] 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 in the direction opposite to D1 to a predetermined position (i.e., when it is retracted), the sensing component passes through the sensing area of the signal sensor, thereby triggering a nailing signal. After the trigger (switch) of the nail gun is pulled, its motor is energized and the nail gun begins to work, thereby making the nailing process safer. The sensing component can be a magnet, and the signal sensor can be a Hall sensor.

[0066] The reset driver 123 is a spring mounted on the mounting base connection portion 1223 of the sliding shaft 12. One end of the spring abuts the sliding push portion 1222, and the other end abuts the mounting base 11. This spring is used to drive the sleeve assembly 12 in the nail driving direction D1, thereby resetting it. After nailing is completed, the reset driver 123 drives the sliding shaft 122 in the direction D1, causing the sensing component to leave the sensing area of the signal sensor.

[0067] The guide plate 125 is L-shaped, with two generally perpendicular portions. One portion is rectangular and rests against the generally planar upper surface of the nail hole member 22. The other portion has a semicircular end with a protrusion on the side. This portion has a circular hole that fits over and abuts the sliding push portion 1222. During the sliding movement of the sleeve, the guide plate 125 provides auxiliary guidance, helping the sleeve to maintain movement in the direction D1 or the opposite direction.

[0068] Figure 8 It is a three-dimensional view of the first front end sleeve in this embodiment.

[0069] like Figure 8 As shown, the first front sleeve 124 is mounted on the front end of the slide 121. The front sleeve 124 includes a coaxially arranged nozzle extension portion 1241 and a sleeve connecting portion 1242.

[0070] 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 part 1242 to its outer end, the cross-sectional size of the nozzle extension 1241 gradually becomes smaller. The cross-section near the front end of the nozzle extension 1241 is long and strip-shaped, so that it can be extended into a concave or narrow target nailing position when in use. The front end of the muzzle extension 1241 also has a rectangular notch 1241a. A through-hole 1241b is formed within the muzzle extension 1241. The portion connecting the muzzle extension 1241b to the nail hole 211a is a tapered hole. The diameter of the tapered hole gradually decreases from the end where the muzzle extension 1241 connects to the sleeve connection 1242 to its outer end, thereby guiding the ejected nail. The remainder of the nail extension 1241b is a circular hole, the diameter of which matches the diameter of the smaller end of the tapered hole. One end of the nail extension 1241b is located at the notch 1241a.

[0071] The sleeve connection portion 1242 is annular, with an inner circumference formed with an internal thread and an outer circumference formed with multiple ridges to increase friction when the user holds it.

[0072] After being assembled on the gun nozzle 20, the nail extension hole 1241b is axially aligned with and connected to 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 is ejected to the outside.

[0073] In this embodiment, the first front sleeve 124 is detachably threaded onto the front end of the sliding sleeve 121. Depending on the desired nailing depth, the material and surface structure of the target nailing location, and other factors, a plurality of front sleeves of varying overall lengths and slightly different structures can be provided, allowing the user to replace and use different front sleeves as needed. Several other front sleeves are exemplified below.

[0074] Figure 9 It is a three-dimensional view of the second front end sleeve in this embodiment.

[0075] like Figure 9 As shown, the second front sleeve 124' also has a nozzle extension 1241 and a sleeve connecting portion 1242. The difference is that the nozzle extension 1241 is a two-section cylindrical section, the cylindrical section near the outer end having a relatively larger diameter. The front end of the nozzle extension 1241 lacks the aforementioned notch. Its front end surface 12411, perpendicular to the axial direction, has a plurality of positioning grooves 12411a. These positioning grooves 12411a are cylindrical grooves distributed around the nail extension hole 1241b. The inner diameter of the positioning grooves 12411a is smaller than the aperture of the nail extension hole 1241b. Compared with the first front sleeve 124, the second front sleeve 124' has a longer overall length (axial length).

[0076] Figure 10 It is a three-dimensional view of the third front end sleeve in this embodiment.

[0077] like Figure 10 As shown, the third front end sleeve 124" also has a muzzle extension portion 1241 and a sleeve connecting portion 1242. The difference is 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.

[0078] Figure 11 It is a three-dimensional view of the fourth front end sleeve in this embodiment.

[0079] like Figure 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 is that the gun nozzle extension portion 1241 is a cylindrical portion with a missing part, which includes a cylindrical portion 12411 with a missing corner and an arc-shaped plate portion 12412. The arc-shaped plate 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 cylindrical portion 12411 is a cylindrical portion 12411. The other side of the end surface of the fourth front sleeve 12411 has a crescent-shaped inclined surface 12411a that is tilted relative to its axial direction. This inclined surface and the arcuate plate-like portion 12412 facilitate oblique nailing (i.e., the nailing direction is tilted relative to the surface of the target nailing position). Compared with the first to third front sleeves described above, the fourth front sleeve 124'' is longer in overall length, wherein the length of the cylindrical portion 12411 is close to the length of the gun nozzle extension 1241 of the first front sleeve 1241.

[0080] The nail gun can be equipped with the above several front end sleeves simultaneously, so that the user can select the most suitable one to assemble and use as required, or 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 part.

[0081] The adjustment assembly 13 includes a lining kit 131 , an adjustment component 132 , a pressing member 133 and a positioning bead 134 .

[0082] Figure 12 It is a three-dimensional diagram of the liner kit in this embodiment.

[0083] like Figure 12 As shown, the liner kit 131 (adjusting nut liner) includes an integrally formed connector body portion 1311 and a connector ring portion 1312 .

[0084] The connector body 1311 is generally cylindrical in shape. The connector ring 1312 is formed at one axial end of the connector body 1311. The edge of the other end of the connector body 1311 is chamfered. A circular groove 1311a is formed in the middle of the connector body 1311, slightly near the other end. The connection between the bottom of the groove 1311a and the sidewall is arc-shaped, and the groove width of the 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 flat. The pair of first mating surfaces 1311b and the pair of second mating surfaces 1311c are arranged opposite 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 either side of the circular groove 1311a, and the two are coplanar. That is, all first mating surfaces 1311b and the pair of second mating surfaces 1311c are parallel to each other. The annular groove 1311a divides the connector body 1311 into two sections, one longer and one shorter. 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 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 shorter section. The widths of the first mating surface 1311b and the second mating surface 1311c are approximately half the diameter of the connector body 1311.

[0085] The connector ring portion 1312 is annular, with its outer end away from the connector body 1311 being conical. The portion closer to the connector body 1311 is annular and plate-like with a uniform diameter. This portion has an outer diameter greater than that of the connector body 1311. Consequently, the connector ring portion 1312 has a raised annular lip 13121. The thickness of the annular lip 13121 (the thickness along the axial direction of the connector body 1311) is greater than its protrusion height (the relative protrusion height in the radial direction of the connector body 1311).

[0086] The maximum outer diameter of the connector body 1311 is substantially equal to or slightly smaller than the diameter of the assembly hole 1213b of the sleeve 121, and the outer diameter of the annular ridge 13121 is larger than the diameter of the assembly hole 1213b.

[0087] The liner kit 131 also has a sliding shaft assembly hole 1313 that passes through it axially. 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 part 1221 of the sliding shaft 122. Therefore, the length of the entire mechanism can be adjusted by the relative rotation of the liner kit 131 and the sliding shaft 122, thereby adjusting the length of the front sleeve 124 protruding from the outside of the gun nozzle 20.

[0088] Figure 13 is a three-dimensional diagram of the adjustment component in this embodiment, Figure 14 It is a cross-sectional view of the adjustment component in this embodiment.

[0089] like Figure 13 and Figure 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.

[0090] The engaging hole 1321 is located at the center axis of the adjusting component 132 and extends axially therethrough. The axial cross-sectional shape of the engaging hole 1321 matches the axial cross-sectional shape of the pair of flat surfaces of the liner assembly 131, and is used to drive the liner assembly 131 to rotate. The inner sidewall of the engaging hole 1321 includes two opposing and parallel driving surfaces 1321a (flat surfaces) and two opposing curved surfaces. When the adjusting component 132 is mounted on the liner assembly 131, the two driving surfaces 1321a contact the first mating surface 1311b and the second mating surface 1311c on the corresponding side, respectively.

[0091] The pressing member accommodating groove 1322 is a cylindrical groove with a conical bottom. The pair of pressing member accommodating grooves 1322 are respectively disposed on both sides of the pair of driving surfaces 1321 a of the engaging hole 1321 .

[0092] The position-limiting member mounting holes 1323 are through-holes. A pair of position-limiting member mounting holes 1323 extend parallel to each other and are located on opposite sides of a diameter line of the adjustment member 132. In other words, the position-limiting member mounting holes 1323 do not pass through the central axis of the adjustment member 132. Each position-limiting member mounting hole 1323 forms two elliptical openings on the outer circumference of the adjustment member 132 and a long, curved, elliptical opening 1323a on the inner circumference of the adjustment member 132. Alternatively, one end of the position-limiting member mounting hole 1323 may not be through-holes.

[0093] The pressing member 133 and the positioning bead 134 are used to position the rotation angle of the adjustment component 132 so that the user can adjust it at a predetermined angular stroke (corresponding to a predetermined nailing depth adjustment amount). For example, for every 90 degrees of forward rotation, the front end protrusion length increases by 5 mm. In this embodiment, the pressing member 133 is a spring and the positioning bead 134 is a steel ball. The two pressing members 133 are respectively arranged in two pressing member receiving grooves 1322, one end of which abuts against the bottom of the pressing member receiving groove 1322, and the other end abuts against a circular surface of the annular 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 limiting hole 1213a under the action of the clamping member 133, so that the sliding sleeve component and the adjusting component 132 are in a relatively stable state.

[0094] The limiting assembly 14 includes a pair of limiting pins 141 and a stop ring component 142 .

[0095] The limit pin 141 is an elastic long cylindrical member, the length and diameter of which are adapted to the limit member mounting hole 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-fit hole 1321 of the adjusting component 132 through the long strip opening 1323a, and is embedded in the annular groove 1311a of the lining kit 131, thereby fixing the relative position between the adjusting component 132 and the lining kit 131 so that axial relative movement will not occur.

[0096] 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.

[0097] like Figure 5As shown, the sliding sleeve assembly (sliding sleeve 121 and front sleeve 124) is slidably mounted on the front end of the gun nozzle 20, and one end of the sliding shaft 122 is axially movable and mounted in the mounting hole of the mounting base 11. The connecting member body 1311 of the liner assembly 131 is inserted into the assembly hole 1213b of the sliding sleeve 121, and the liner assembly 131 is threadedly connected to the other end of the sliding shaft 122. The adjusting member 132 is mounted on the mating surface of the connecting member body 1311 of the liner assembly 131 through its engaging hole 1321. The annular flange 13121 and the adjusting member 132 are respectively located on either side of the assembly hole 1213b. The pressure member 133 (compression spring) is housed within the pressure member receiving groove 1322 of the adjustment component 132. One end abuts the groove bottom, and the other end abuts the annular portion 12131 of the sliding sleeve 121 via the positioning bead 134. Under the action of the pressure member 133, the annular protrusion 13121 abuts the edge of the assembly hole 1213b. The reset driver 123 (reset spring) is mounted on the sliding shaft 122 and abuts the sliding push portion 1222 and the mounting seat 11, respectively.

[0098] Before use, an appropriate front sleeve can be selected based on the desired nailing depth and assembled onto the front end of the slide sleeve 121. The length of the front sleeve protruding from the front end of the nozzle 20 can then be further adjusted by rotating the adjustment member 132, thereby adapting the nail gun 100 to different nailing depth requirements. When the adjustment member 132 is rotated, the adjustment member 132 drives the liner assembly 131 to rotate through its engaging hole 1321. However, the sliding shaft 122 cannot rotate axially due to the limiting action of the sliding shaft limit pin 113. Therefore, the liner assembly 131 rotates relative to the sliding shaft 122, causing the overall length of the mechanism to change.

[0099] During nailing, the front end of the front sleeve 124 is pressed against the target nailing position. The sliding sleeve, under the compressive force, moves in the direction opposite to D1, driving the sensing component on the sliding shaft 122 to the sensing area of the signal sensor. At this point, the trigger is pulled to fire 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 under pressure, and the sliding sleeve, under the action of the reset driver 123, moves in the direction D1, driving the sensing component on the sliding shaft 122 out of the sensing area.

[0100] Functions and effects of embodiment 1

[0101] The nailing depth adjustment mechanism for a nail gun and the nail gun provided according to this embodiment include a mounting seat, a sliding sleeve assembly, an adjustment assembly and a limit assembly, wherein the sliding sleeve assembly includes a sliding sleeve part and a sliding shaft for triggering a nailing signal, and the adjustment assembly includes a lining kit and an adjustment part. Since the lining kit is entirely inserted into the assembly hole of the sliding sleeve part, and the lining kit has a circle of annular ridges, when nailing, the pulling force and rebound force exerted on the front end of the nailing depth adjustment mechanism will act on the annular ridges. Since the lining kit is not a thin sheet and the annular ridges are also supported by other parts of the lining kit, it can withstand greater pulling force and rebound force, and is not prone to deformation, breakage or failure during long-term use. Therefore, the nailing depth adjustment mechanism has a longer service life, is safer and more reliable during nailing, and can also save users time for inspection and maintenance.

[0102] In the embodiment, the side surface of the liner kit has multiple planes, and the middle portion of the adjustment component has a non-circular snap-in hole that matches the liner kit. The cooperation of the two planes can stably drive the liner kit to rotate.

[0103] Furthermore, the liner kit has a circle of annular grooves, and the limit assembly includes a pair of limit pins. The limit pins are passed through the limit member mounting holes on the adjusting component. The middle part of the limit pins is located in the snap-fit hole and is embedded in the annular groove, so that the liner kit 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.

[0104] 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, making the overall reliability of the mechanism higher.

[0105] 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 length adjustment 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.

[0106] Furthermore, the sliding sleeve assembly also includes a guide plate supported on the upper surface of the nail hole part, which can support and guide the rear end of the sliding sleeve part during the sliding process, thereby further ensuring that the sliding sleeve part 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.

[0107] Furthermore, the front sleeve is detachably threadedly connected to the front end of the sliding sleeve component, and the nail gun can be equipped with multiple front 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 more applicable.

[0108] <Example 2>

[0109] This embodiment provides a nailing depth adjustment mechanism for a nail gun and a nail gun. In this embodiment, the same components as those in the first embodiment are given the same symbols and the corresponding descriptions are omitted.

[0110] 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. Figure 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 needs to be formed on the inner circumference of the adjusting component 132 to expose the limit pin 141. For this reason, when drilling a hole on the adjusting component 132 made of metal 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 lining kit 131 well.

[0111] The solution of this embodiment is intended to further solve the above-mentioned problem.

[0112] Figure 15 : is a three-dimensional diagram of the nailing depth adjustment mechanism in this embodiment, Figure 16 This is an exploded view of the nailing depth adjustment mechanism in this embodiment. Figure 17 It is a cross-sectional view of the nailing depth adjustment mechanism in this embodiment.

[0113] 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.

[0114] The adjustment assembly 13 also includes a lining kit 131 , an adjustment component 132 , a pressing member 133 and a positioning bead 134 , but the lining kit 131 and the adjustment component 132 are different from those in the first embodiment.

[0115] Figure 18It is a three-dimensional diagram of the liner kit in this embodiment.

[0116] like Figure 18 As shown, in the liner kit 131 of this embodiment, the annular groove 1311a is arranged at one end of the connector body 1311 (the end away from the annular protrusion 13121). Accordingly, the annular groove 1311a divides the connector 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. The length of the first mating surface 1311b is approximately 2 / 3 of the length of the longer section.

[0117] Figure 19 It is a three-dimensional diagram of the adjusting component in this embodiment.

[0118] like Figure 19 As shown, the adjustment component 132 of this embodiment has a snap-in hole 1321 and a pair of pressure member accommodating holes 1324. The structure of the snap-in hole 1321 is the same as that of the first embodiment. The pressure member accommodating holes 1324 are circular through-holes, also disposed on either side of the two driving surfaces of the snap-in hole 1321. In addition, one axial end of the adjustment component 132 has a shallow circular groove 1325. The cross-sectional dimensions of the circular groove 1325 are close to (slightly smaller than) the outer diameter of the adjustment component 132, and the bottom of the circular groove 1325 is substantially flat.

[0119] That is, the adjustment component 132 of this 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.

[0120] 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.

[0121] Figure 20 It is a three-dimensional diagram of the limiting piece in this embodiment.

[0122] like Figure 20 As shown, the limiting plate 143 is flat and circular in shape, with an outer diameter substantially identical to the inner diameter of the circular groove 1325. A limiting hole 1431 is located in the center of the limiting plate 143. The cross-sectional shape of the limiting hole 1431 is substantially identical to the axial cross-sectional shape of the engaging hole 1321, namely, it has two opposing and parallel straight sides and two opposing curved sides. Four fixing holes 1432, all circular through holes, are evenly distributed along the edge of the limiting plate 143. In this embodiment, two of the fixing holes 1432 are located adjacent to the two straight sides of the limiting hole 1431.

[0123] Figure 21 3D is a three-dimensional diagram of the position limiting fixing member in this embodiment.

[0124] like Figure 21 As shown, the limiting fixing part 144 includes a spring limiting end 1441, a fixing part 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 part main body 1442 is larger than that of the other two parts and matches the aperture of the clamping part accommodating hole 1324; the outer diameter of the interlocking end 1443 matches the aperture of the fixing part interlocking hole 1432.

[0125] During assembly, first pass the lining kit 131 through the assembly hole 1213b, then put the adjusting component 132 onto the lining kit 131, and then put 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 in sequence, and then align the limiting hole 1431 on the limiting plate 143 with the clamping hole 1321 on the adjusting component 132 along the axial direction and keep their relative angles to put the limiting plate 143 onto the lining kit 131, and then press the limiting plate 143 toward the direction of the lining kit 131 (to overcome the pressure of the pressing member 133). 133) until the limiting plate 143 reaches the annular groove 1311a, and then the limiting plate 143 is rotated 90 degrees so that the two straight sides of the limiting hole 1431 are stuck in the annular groove 1311a. At this time, the limiting plate 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 plate 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 plate 143, thereby locking the adjusting component 132 and the liner kit 131 in the axial direction.

[0126] Before use, the appropriate front sleeve can be installed as needed. The adjustment component 132 can then be rotated to further adjust the nailing depth. Rotating the adjustment component 132 causes the liner assembly 131 to rotate relative to the sliding shaft 122 via its engaging hole 1321, thereby adjusting the length of the mechanism protruding from the front end of the muzzle 20. During this rotation, since the stopper 143 is connected to the adjustment component 132 via a pair of stopper fixtures 144, it rotates with the adjustment component 132 and the liner assembly 131 without rotating axially relative to the liner assembly 131. Therefore, the stopper 143 does not become disengaged during the adjustment process. After adjustment, the nailing process is essentially the same as in Example 1.

[0127] In this embodiment, other structures are the same as those in the first embodiment, and thus will not be described again.

[0128] Functions and effects of Example 2

[0129] According to the nailing depth adjustment mechanism for a nail gun and the nail gun provided in this 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 adjustment component and the lining kit 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 adjustment component. Therefore, the processing difficulty of the adjustment component is greatly reduced. During assembly, it is only necessary to put on the limiting plate, press it in, and rotate it 90 degrees so that it is stuck in the annular groove of the lining kit. Therefore, such a structural design still maintains the convenience of assembly, and can achieve quick disassembly and assembly when assembly and maintenance are required.

[0130] Furthermore, one end of the adjusting component has a groove that matches the limiting plate, and the assembled limiting plate is embedded in the groove, which not only makes the overall mechanism more streamlined and beautiful, but also prevents the limiting plate from being affected by external factors, further improving the reliability of the mechanism.

[0131] The above embodiments are merely examples of specific implementation methods of the present invention, and the present invention is not limited to the scope of the description of the above embodiments. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

[0132] 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.

[0133] 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 for a nail gun, provided in the nail gun, characterized in that: include: The mounting base, the sliding sleeve assembly, the adjusting assembly and the limiting assembly are fixed on the gun nozzle of the nail gun. Wherein, the sliding sleeve assembly includes: a sleeve component, slidably mounted on the gun nozzle, with one end thereof protruding from the front end of the gun nozzle and the other end having a mounting hole; and A sliding shaft is axially slidably arranged on the mounting seat, The adjustment component includes: an inner lining sleeve, which is inserted into the assembly hole and has an annular convex edge for abutting against the assembly hole, and one end of the sliding shaft is connected to the inner lining sleeve; and The adjusting component is mounted on the liner kit and is located on both sides of the assembly hole together with the annular convex edge, and is used to drive the liner kit to rotate relative to the sliding shaft, thereby adjusting the length of the sliding sleeve component protruding from the gun nozzle. The limiting assembly is used to limit the position of the adjusting component relative to the liner kit.

2. The nailing depth adjustment mechanism for a nail gun according to claim 1, Its characteristics are: The lining kit has a cylindrical connector body, and the annular convex edge is provided on one end of the connector 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 connector body at the mating surface, and the inner side surface of which includes a pair of oppositely disposed and mutually parallel planes; and A pair of pressing member accommodating holes are respectively arranged on both sides of the clamping hole. The limiting component includes: 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 with 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 lining kit and the adjustment component in the axial direction.

3. The nailing depth adjustment mechanism for a nail gun according to claim 2, Its characteristics are: 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 surface is formed around the assembly hole, and a plurality of pairs of ball limiting grooves are distributed on the circular surface. The adjustment component also includes: Two pressing members are respectively disposed in a pair of the pressing member accommodating holes, with one end thereof abutting against the corresponding limiting fixing member; and Two positioning balls, 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 ball.

4. The nailing depth adjustment mechanism for a nail gun according to claim 3, characterized in that: in, The inner side surface of the clamping hole also includes a pair of arc-shaped surfaces arranged opposite to each other. The limiting hole also has a pair of arc-shaped edges arranged opposite to each other. After the assembly is completed, a pair of planes on the inner side surface of the engaging hole are respectively perpendicular to a pair of straight sides of the limiting hole.

5. The nailing depth adjustment mechanism for a nail gun according to claim 1, characterized in that: in, The lining kit has a cylindrical connector body, and the annular convex edge is provided on one end of the connector 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 connector body at the mating surface, and the inner side surface of which includes a pair of oppositely disposed arcuate surfaces; and A pair of position-limiting member mounting holes are formed on the arc surface to form long strip openings. The limiting assembly includes a pair of limiting pins, which are passed through a pair of limiting member mounting holes, and the middle part of the limiting pin is placed in the clamping hole through the long strip opening, and the middle part of the limiting pin is embedded in the annular groove, thereby fixing the liner kit and the adjustment component in the axial direction.

6. The nailing depth adjustment mechanism for a nail gun according to claim 5, Its characteristics are: Wherein, the limiting pin is a cylindrical pin. The limiting member mounting hole is a through hole that matches the limiting pin. A circular surface is formed around the assembly hole, and a plurality of pairs of ball limiting grooves are distributed on the circular 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 receiving grooves, with one end thereof abutting against the bottom of the pressing member receiving 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.

7. The nailing depth adjustment mechanism for a nail gun according to claim 6, characterized in that: in, The limit pin is a cylindrical pin with elasticity. A pair of the position-limiting member mounting holes are arranged parallel to each other.

8. The nailing depth adjustment mechanism for a nail gun according to claim 1, Its characteristics are: in, One end of the sliding shaft has a square notch and a bezel arranged next to the square notch, and the bezel is used for mounting the sensing component. 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.

9. The nailing depth adjustment mechanism for a nail gun according to claim 1, characterized in that: in, The sliding sleeve component includes a sliding sleeve, The sliding sleeve is in a right-angled Z-shape as a whole, with one end having a sleeve hole for movably sleeved on the gun nozzle, and the other end having the assembly hole.

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

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