Staple feeding unit for straight and u-shaped staples and nail gun

Abstract

The application provides a nail feeding unit and a nail gun, which are suitable for straight nails and U-shaped nails. The nail feeding unit comprises a nail accommodating part for accommodating nails and a nail pushing part for pushing the nails along a nail path. The nail accommodating part has a U-shaped nail path for accommodating U-shaped nails and a straight nail path for accommodating straight nails. The straight nail path is located inside the U-shaped nail path, that is, the U-shaped nails and the straight nails have separate nail paths and share no part of the nail path. Therefore, even when the line diameters of the U-shaped nails and the straight nails differ greatly, the U-shaped nails and the straight nails can be stably transported through the corresponding nail paths, and the nails are not prone to being sent in an unsmooth manner or being stuck. The same nail gun can be conveniently switched for driving straight nails and U-shaped nails, and multiple nail guns are no longer needed in scenarios where such switching is required, which is more convenient to carry and use and can reduce equipment costs.

Description

Technical Field

[0001] This invention belongs to the field of fastening tool technology, specifically relating to a dual-purpose nail feeding unit suitable for straight nails and U-shaped nails, as well as a nail gun. Background Technology

[0002] A nail gun is a common fastening tool that fires nails from a magazine sequentially. Nails come in various types, such as straight nails, U-shaped nails, and L-shaped nails. Traditionally, nail guns were typically used with specific magazine sizes, limiting their application to only one type of nail. For example, in sofa manufacturing, straight nails and U-shaped nails are used sequentially to connect and secure different parts. In such cases, at least two nail guns would be needed for switching between them, which is inconvenient.

[0003] Currently, while some nail magazines exist that can accommodate two or more nail types simultaneously, these magazines often require different types of nails to share a common nail track. For example, part of the nail track for a straight nail may also be part of the nail track for a U-shaped nail. Therefore, the wire diameters of the straight and U-shaped nails need to be relatively similar to achieve a satisfactory nail feeding effect. When using two different types of nails with significantly different wire diameters, the mismatch in nail track dimensions can easily lead to uneven nail feeding and nail jamming in these magazines. These issues can also cause wear and tear on the nail track, reducing their lifespan.

[0004] Therefore, in order to solve the above problems, it is necessary to design a new type of multi-purpose nail box for the above usage scenarios. Summary of the Invention

[0005] This invention addresses the aforementioned problems by providing a dual-purpose nail feeding unit suitable for both straight and U-shaped nails with significant differences in wire diameter. This allows nail guns to fire both straight and U-shaped nails. The invention employs the following technical solution:

[0006] This invention provides a nail feeding unit suitable for straight nails and U-shaped nails, installed in a nail gun, characterized in that it includes: a nail receiving part having a straight nail channel for receiving straight nails and a U-shaped nail channel for receiving U-shaped nails, the straight nail channel being located inside the U-shaped nail channel; and a nail pushing part including a first nail pushing member disposed in the U-shaped nail channel and a second nail pushing member disposed in the straight nail channel, respectively used to push the U-shaped nail in the U-shaped nail channel and the straight nail in the straight nail channel toward the nozzle.

[0007] The nail feeding unit for straight nails and U-shaped nails provided by the present invention may also have the following technical features, wherein the nail receiving portion includes: a first nail receiving member having a member receiving groove extending along its length direction; a second nail receiving member disposed within the member receiving groove; and a third nail receiving member having a third main body and a third extension, the third extension being connected to the third main body and bent relative to the third main body, the U-shaped nail channel being formed between the inner wall of the member receiving groove and the end of the third nail receiving member having the third extension, and the straight nail channel being formed between the second nail receiving member and the third main body.

[0008] The nail feeding unit for straight nails and U-shaped nails provided by the present invention may also have the following technical features, wherein the second nail receiving component includes: a second main body portion, which is rectangular plate-shaped; and a plurality of second strip-shaped protrusions disposed on one side of the second main body portion, all extending along the length direction of the second main body portion and arranged sequentially along the width direction of the second main body portion; the third nail receiving component further includes: a plurality of third strip-shaped protrusions disposed on one side of the rectangular plate-shaped third main body portion, all extending along the length direction of the third main body portion and arranged sequentially along the width direction of the third main body portion; the shape and arrangement of the plurality of third strip-shaped protrusions correspond to the plurality of second strip-shaped protrusions; and the straight nail channel is formed between the side of the second main body portion and the side of the third main body portion.

[0009] The nail feeding unit for straight nails and U-shaped nails provided by the present invention may also have the following technical features, wherein the second nail pusher includes: a second nail pusher body, which is plate-shaped, and has a plurality of pushing protrusions at one end facing the nozzle direction, the shape and arrangement of the plurality of pushing protrusions corresponding to the plurality of second strip-shaped protrusions.

[0010] The nail feeding unit for straight nails and U-shaped nails provided by the present invention may also have the following technical features, wherein the second nail receiving component further includes: a second block-shaped protrusion disposed on the other side of the second main body, and the third nail receiving component further includes: a third block-shaped protrusion disposed on the other side of the third main body, wherein the second block-shaped protrusion and the third block-shaped protrusion are respectively connected to the inner walls of opposite sides of the component receiving groove, and the U-shaped nail channel is formed between the inner wall of the component receiving groove, the edge portion of the second block-shaped protrusion, the other side of the second main body, the end of the third nail receiving component having the third extension portion, the other side of the third main body, and the edge portion of the third block-shaped protrusion.

[0011] The nail feeding unit for straight nails and U-shaped nails provided by the present invention may also have the following technical features, wherein the third nail receiving component further includes: a fitting and fixing part, the middle part of which is connected to one end of the third main body that is away from the third extension part, the fitting and fixing part having a pair of component end fitting grooves, the slots of the pair of component end fitting grooves facing each other, the first nail receiving component having a U-shaped cross section, and its two ends having second extensions extending in opposite directions, the pair of second extensions respectively fitting into the pair of component end fitting grooves.

[0012] The nail feeding unit for straight nails and U-shaped nails provided by the present invention may also have the following technical features, wherein the first nail receiving component further comprises: a pair of guide grooves extending along the length direction of the first nail receiving component and respectively located on both sides of the receiving groove of the component; the first nail pusher comprises: a first nail pusher body portion with a U-shaped cross-section, fitted into the U-shaped nail channel; and a pair of elastic member connecting pieces, respectively extending outward from two ends of the first nail pusher body portion and respectively embedded in the pair of guide grooves; the nail pusher portion further comprises: an elastic member, one end connected to the elastic member connecting piece portion and the other end connected to the first nail receiving component, for moving the first nail pusher towards the nozzle direction.

[0013] The nail feeding unit for straight nails and U-shaped nails provided by the present invention may also have the following technical features, wherein a nail-pushing passage is formed between the end of the third extension and the end of the second nail-receiving member, the two ends of the nail-pushing passage are respectively connected to the straight nail passage and the U-shaped nail passage, the first nail-pushing member has a first connecting piece extending toward its inner side, the second nail-pushing member has a second connecting piece fixedly connected to the first connecting piece, and the first connecting piece and the second connecting piece are accommodated in the nail-pushing passage.

[0014] The present invention provides a nail gun, characterized in that it includes: a nozzle having a nail outlet for firing nails; and a nail feeding unit for storing a row of nails and sequentially feeding the nails in the row of nails to the nozzle, wherein the nail feeding unit is the aforementioned nail feeding unit suitable for straight nails and U-shaped nails.

[0015] The nail gun provided by the present invention may also have the following technical features, wherein the nozzle has: a straight nail receiving port for receiving a straight nail from the straight nail path of the nail supply unit; and a U-shaped nail receiving port for receiving a U-shaped nail from the U-shaped nail path of the nail supply unit.

[0016] Invention Function and Effect

[0017] According to the present invention, a nail feeding unit and a nail gun suitable for straight nails and U-shaped nails are provided. The nail feeding unit includes a nail receiving part for accommodating nails and a nail pushing part for pushing nails along the nail track. The nail receiving part has a U-shaped nail track for accommodating U-shaped nails and a straight nail track for accommodating straight nails. The straight nail track is located inside the U-shaped nail track. That is, U-shaped nails and straight nails each have separate nail tracks and do not share any nail tracks. Therefore, even when the wire diameter difference between U-shaped nails and straight nails is large, they can be stably fed through their respective nail tracks, and it is not easy for nail feeding to be unsmooth or for nails to get stuck. This allows the same nail gun to be easily switched between firing straight nails and U-shaped nails. In scenarios where this is required, it is no longer necessary to equip multiple nail guns, making them more convenient to carry and use, and also reducing equipment costs. Attached Figure Description

[0018] Figure 1 This is a perspective view of the nail supply unit in an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the nail supply unit in an embodiment of the present invention;

[0020] Figure 3 This is a perspective view of the first nail-receiving component in an embodiment of the present invention;

[0021] Figure 4 This is an orthographic projection of the first nail-receiving component in an embodiment of the present invention;

[0022] Figure 5 This is a perspective view of the second nail-receiving component in an embodiment of the present invention;

[0023] Figure 6 This is a perspective view of the third nail-receiving component in an embodiment of the present invention;

[0024] Figure 7 This is an orthographic projection of the third nail-receiving component in an embodiment of the present invention;

[0025] Figure 8 This is an orthographic projection of the three nail-receiving components in an embodiment of the present invention.

[0026] Figure 9 This is a perspective view of the base component in an embodiment of the present invention;

[0027] Figure 10 This is a perspective view of the nail supply unit structure in an embodiment of the present invention;

[0028] Figure 11 This is a perspective view of the first pusher pin in an embodiment of the present invention;

[0029] Figure 12 This is a perspective view of the second pusher pin in an embodiment of the present invention;

[0030] Figure 13 This is an orthographic projection of the nail-feeding unit in an embodiment of the present invention;

[0031] Figure 14 This is a perspective view of the nozzle unit in an embodiment of the present invention;

[0032] Figure 15 This is an exploded view of the nozzle unit in an embodiment of the present invention;

[0033] Figure 16 This is a frontal projection view of the nozzle body in an embodiment of the present invention;

[0034] Figure 17 This is a perspective view of the cover plate in an embodiment of the present invention;

[0035] Figure 18 This is a perspective view of the limiting connecting seat in an embodiment of the present invention;

[0036] Figure 19 This is a schematic diagram of the straight nail structure in an embodiment of the present invention;

[0037] Figure 20 This is a schematic diagram of the U-shaped nail structure in an embodiment of the present invention;

[0038] Figure 21 This is an orthographic projection of the nail-feeding unit in a modified embodiment of the present invention;

[0039] Figure 22 This is a schematic diagram of the U-shaped nail in a modified example of the present invention.

[0040] Figure label:

[0041] Nail supply unit 10; nail receiving portion 11; first nail receiving member 111; first main body portion 1111; bottom 1111a; side portion 1111b; elastic element receiving portion 1112; elastic element receiving hole 1112a; guide groove 1112b; blocking connection hole 1112c; observation notch 1112d; first extension portion 1113; second extension portion 1114; member receiving groove 1115; first base connecting hole 1116; first fixing hole 1117; second nail receiving member 112; second main body portion 1121; second strip-shaped protrusion 1122; second recess Groove 1122a; Second block protrusion 1123; Second base connecting hole 1126; Second fixing hole 1127; Third nail receiving component 113; Fitting and fixing part 1131; Component end fitting groove 1131a; Inlay fitting groove 1131b; Nozzle connecting hole 1131c; Third main body part 1132; Third strip protrusion 1133; Third block protrusion 1134; Third extension part 1135; Inlay 114; Base component 115; Component mounting groove 1151; Straight nail track 117; U-shaped nail track 118; Nail pusher passage 119; Nail pusher part 12;

[0042] First pusher 121; First pusher body 1211; First hole 1211a; Second hole 1211b; First connecting piece 1212; Elastic connecting piece 1213; Guide piece 1214; Second pusher 122; Second pusher body 1221; Second connecting piece 1222; Pusher protrusion 1221a; Spring 123; Connecting pin 124; Connecting member 13; Pile holder clamping plate 131; Connecting plate 132; Nozzle unit 20; Gun Mouth body 21; nail outlet groove 211; straight nail inlet 212; U-shaped nail inlet 213; nail magazine connecting hole 214; gun body connecting hole 215; nail outlet 216; cover plate 22; clearance groove 221; mouthpiece body connecting hole 222; nail limiting part 23; limiting connecting seat 231; spacer mounting groove 2311; spring receiving groove 2312; spacer 232; ball bearing 233; return spring 234; straight nail 100; nail body 101; nail head 102; U-shaped nail 200. Detailed Implementation

[0043] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the following describes in detail the dual-purpose nail supply unit applicable to straight nails and U-shaped nails and the nail gun of the present invention with reference to embodiments and accompanying drawings.

[0044] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] <Example>

[0046] This embodiment provides a nail gun, which includes a nozzle for firing nails, a nail feeding unit (nail magazine) for storing nails and supplying them to the nozzle, and a main body. The main body includes a housing and a firing pin, a drive mechanism, etc., disposed within the housing, for firing the nails from the nozzle. The structure of the main body is prior art and will not be described in detail. The nail gun of this embodiment is suitable for straight nails and U-shaped nails with large differences in wire diameter. The structure of the nail feeding unit is based on the structural design of straight nails and U-shaped nails; therefore, the structures of the two types of nails will be briefly described below.

[0047] Figure 19 This is a schematic diagram of the straight nail structure in this embodiment.

[0048] like Figure 19As shown, the straight nail 100 (also called a T-nail) includes a straight nail body 101 and a nail head 102 connected to one end of the nail body 101. The other end of the nail body 101 is the nail tip. Viewed from the side, the straight nail 100 is T-shaped. In this embodiment, the wire diameter of the straight nail 100 (i.e., the diameter of the cylindrical nail body 101) is 1.05 mm, and the overall length is available in five specifications: 15 mm, 20 mm, 25 mm, 30 mm, and 32 mm. The dimensions of the nail head 102 and the wire diameter of the nail body 101 are the same for all specifications of the straight nail 100.

[0049] Figure 20 This is a schematic diagram of the U-shaped nail in this embodiment.

[0050] like Figure 20 As shown, the U-shaped nail 200 is U-shaped overall, with nail tips at both ends. Along the extension direction of the U-shaped nail 200, its cross-section is circular. In this embodiment, the wire diameter of the U-shaped nail 200 (i.e., the diameter of the circular cross-section) is 0.6 mm, significantly smaller than the wire diameter of the straight nail 100. The overall length of the U-shaped nail 200 is available in five specifications: 6 mm, 8 mm, 10 mm, 13 mm, and 22 mm. The overall width (i.e., the distance between the two ends of the U-shape) of these five types of U-shaped nails 200 is consistent.

[0051] Figure 1 and Figure 2 These are, respectively, a perspective view and an exploded view of the nail supply unit in this embodiment.

[0052] like Figures 1-2 As shown, the nail feeding unit 10 (hereinafter referred to as the nail feeding unit 10), suitable for straight nails and U-shaped nails, includes a nail receiving part 11, a nail pushing part 12, and a connecting member 13. The nail receiving part 11 is used to receive a row of nails, and the nail pushing part 12 is used to push the row of nails in the nail receiving part 11 toward the end of the nail receiving part 11, thereby feeding the nails sequentially to the nozzle. The connecting member 13 is used to fix the nail feeding unit 10 to the main body of the nail gun.

[0053] The nail receiving part 11 includes a first nail receiving member 111, a second nail receiving member 112, a third nail receiving member 113, an insert 114, and a base member 115. The first nail receiving member 111 and the second nail receiving member 112 are pre-assembled together as an outer nail clamp, and the third nail receiving member 113 is an inner nail clamp.

[0054] Figure 3 and Figure 4 These are, respectively, a perspective view and an orthographic projection view of the first nail-receiving component in this embodiment.

[0055] like Figures 3-4As shown, the first nail-receiving component 111 is generally strip-shaped, and its cross-section along its length is approximately U-shaped. The first nail-receiving component 111 includes a first main body 1111, an elastic element receiving portion 1112, a first extension portion 1113, and a second extension portion 1114. In this embodiment, the first nail-receiving component 111 is a one-piece molded part made of metal.

[0056] The first main body 1111 has a U-shaped cross section, an arc-shaped bottom 1111a and two roughly square plate-shaped side portions 1111b, the surface directions of the two side portions 1111b are parallel to each other.

[0057] The elastic element receiving portion 1112 is a hollow square rod shape with a strip-shaped opening on one side. The two ends of this opening are connected to the end of the first main body portion 1111 and the end of the first extension portion 1113, respectively. The elastic element receiving portion 1112 has an elastic element receiving hole 1112a extending along its length and passing through it. The elastic element receiving hole 1112a is a square through hole with rounded corners. One end of the elastic element receiving portion 1112 along its length also has a blocking connection hole 1112c and an observation notch 1112d.

[0058] The first extension 1113 is generally square plate-shaped, and its surface direction is consistent with the surface direction of the side portion 1111b of the first main body 1111. A component receiving groove 1115 is formed between the first main body 1111 and the two first extensions 1113, and the bottom of the component receiving groove 1115 is arc-shaped. The elastic member receiving hole 1112a communicates with the component receiving groove 1115 through an opening on one side of the elastic member receiving portion 1112, and a guide groove 1112b for guiding the push pin portion 12 is formed at the opening.

[0059] Both second extensions 1114 are square plates, extending further perpendicularly from the ends of the two first extensions 1113 that are away from the first main body 1111, and the two second extensions 1114 extend in opposite directions.

[0060] The first nail-receiving member 111 also has a pair of first base connecting holes 1116 and three first fixing holes 1117, all of which are circular through holes. The pair of first base connecting holes 1116 are respectively opened on the two elastic member receiving portions 1112 and are located at one end of the length direction of the first nail-receiving member 111. The three first fixing holes 1117 are opened on one of the first extension portions 1113 and are distributed along the length direction of the first nail-receiving member 111.

[0061] Figure 5 This is a perspective view of the second nail-receiving component in this embodiment.

[0062] like Figure 5As shown, the second nail-receiving member 112 is generally strip-shaped, with the same length as the first nail-receiving member 111, and a width less than the groove depth of the member receiving groove 1115. The second nail-receiving member 112 includes a second main body 1121, a plurality of second strip-shaped protrusions 1122, and a second block-shaped protrusion 1123.

[0063] The second main body portion 1121 is in the shape of a square plate. A plurality of second strip-shaped protrusions 1122 are formed parallel to each other on one surface of the second main body portion 1121 in the thickness direction and are arranged sequentially along the width direction of the second main body portion 1121. A square strip-shaped second groove 1122a is formed between two adjacent second strip-shaped protrusions 1122. A second block-shaped protrusion 1123 is formed on another surface of the second main body portion 1121 in the thickness direction and is located on one side of the second main body portion 1121 in the width direction.

[0064] The second nail receiving component 112 also has a second base connecting hole 1126 and three second fixing holes 1127, all of which are circular through holes. The second base connecting hole 1126 is located at one end of the length direction of the second nail receiving component 112. The three second fixing holes 1127 are located at the block-shaped protrusion 1123 and are distributed along the length direction of the second nail receiving component 112. The arrangement of the second base connecting hole 1126 and the three second fixing holes 1127 is consistent with the arrangement of the first base connecting hole 1116 and the first fixing hole 1117 on the first nail component 111. By aligning the three fixing holes of the first nail receiving component 111 and the second nail receiving component 112 respectively and setting fasteners, the two can be fixedly connected to form an external nail clip.

[0065] Figure 6 and Figure 7 These are, respectively, a perspective view and an orthographic projection view of the third nail-receiving component in this embodiment.

[0066] like Figures 6-7 As shown, the third rivet-receiving component 113 is generally strip-shaped, with a length shorter than that of the first rivet-receiving component 111, and its cross-section along its length is approximately T-shaped. The third rivet-receiving component 113 includes a fitting and fixing portion 1131, a third main body portion 1132, multiple third strip-shaped protrusions 1133, third block-shaped protrusions 1134, and a third extension portion 1135. In this embodiment, the third rivet-receiving component 113 is also a one-piece molded part made of metal.

[0067] The third main body 1132 is generally square plate-shaped. The middle part of the fitting and fixing part 1131 is connected to one end of the third main body 1132 in the width direction. Multiple hook-shaped structures are formed on both sides of the third main body 1132 in the thickness direction. Two component end fitting grooves 1131a and a strip fitting groove 1131b are formed on the inner side of the hook-shaped structures. Both are square grooves and extend along the length direction of the third accommodating member 113. The openings of the two component end fitting grooves 1131a are opposite each other, and the two second extensions 1114 of the first accommodating member 111 can be respectively fitted into the two component end fitting grooves 1131a. In addition, the fitting and fixing part 1131 also has a pair of nozzle connecting holes 1131c, which are opened at the two corners away from the third main body 1132. The nozzle connecting holes 1131c are through the fitting and fixing part 1131 in the length direction.

[0068] Multiple third strip-shaped protrusions 1133 are formed parallel to each other on one surface of the third main body portion 1132 in the thickness direction and are arranged sequentially along the width direction of the third main body portion 1132. A square strip-shaped third groove 1133a is formed between two adjacent third strip-shaped protrusions 1133. The shape, size and arrangement of the multiple third strip-shaped protrusions 1133 correspond to the multiple second strip-shaped protrusions 1122 of the second rivet member 112. A third block-shaped protrusion 1134 is formed on another surface of the third main body portion 1132 in the thickness direction and is located on one side of the width direction of the third main body portion 1132.

[0069] The third extension 1135 extends from the other end of the third main body 1132 in the width direction and forms a hook shape, so that the end of the third nail receiving member 113 with the third extension 1135 (i.e. the end of the third nail receiving member 113 in the width direction) is semi-cylindrical.

[0070] The strip 114 is rectangular and fits into the strip fitting groove 1131b. The two end faces of the strip 114 are flush with the two end faces of the third nail receiving member 113.

[0071] Figure 9 This is a perspective view of the base component in this embodiment.

[0072] like Figure 9 As shown, the base member 115 has a component mounting groove 1151 that matches the cross-sectional shape of the first nail receiving member 111 and a plurality of connecting holes communicating with the component mounting groove 1151.

[0073] Since the third nail-receiving component 113 is shorter than the first nail-receiving component 111, when the two are assembled, one end in the length direction is aligned and this end is used to connect the nozzle. The other end in the length direction is one end of the first nail-receiving component 111. This end of the first nail-receiving component 111 is fitted into the component mounting groove 1151 of the base component 115, and fasteners can be provided to fix the base component 115 and the first nail-receiving component 111 together. After the nozzle is further installed, the third nail-receiving component 113 is confined between the nozzle and the base component 115.

[0074] Figure 8 This is an orthographic projection of the three nail-receiving components in this embodiment.

[0075] like Figure 8 As shown, after the three nail-receiving components are fixedly connected, the second nail-receiving component 112 is located in the component receiving groove 1115, and its second block-shaped protrusion 1123 is in contact with the inner wall of the first extension 1113 (that is, the side wall of the component receiving groove 1115); the third main body 1132 and the third extension 1135 of the third nail-receiving component 113 are accommodated in the component receiving groove 1115, and its third block-shaped protrusion 1134 is in contact with the inner wall of the other first extension 1113.

[0076] At this time, the surfaces of the second nail-receiving member 112 and the third nail-receiving member 113 with strip-shaped protrusions face each other, forming a straight nail channel 117 for receiving a straight nail between these two surfaces. Specifically, a strip-shaped portion 1171 of the nail channel is formed between two opposing strip-shaped protrusions, and a square portion 1172 of the nail channel is formed between two opposing grooves. Along its extending direction, the cross-section of the straight nail channel 117 includes five alternating strip-shaped portions 1171 and five square portions 1172 connected sequentially. The straight nail 100 of this embodiment has five length specifications, and the arrangement and spacing of the strip-shaped portions 1171 and square portions 1172 of the straight nail channel 117 match these five length specifications of the straight nail 100. For the shortest straight nail 100 (15 mm in length), its head 102 is accommodated in a square portion 1172 closest to the insert 114; for the next shortest straight nail 100 (20 mm in length), its head 102 is accommodated in a second square portion 1172 closest to the insert 114, and so on. The insert 114 is positioned at one end of the nail path to accommodate the nail tip, preventing the nail tip from damaging the component.

[0077] Simultaneously, a U-shaped nail channel 118 for accommodating U-shaped nails is formed between the sidewalls of the second nail-receiving member 112, the third nail-receiving member 113, and the component receiving groove 1115. Specifically, the U-shaped nail channel 118 is formed between the sidewall of the component receiving groove 1115, the edge of the second block protrusion 1123, the surface of the second main body 1121 (i.e., the surface on one side of the second block protrusion 1123), the end of the third nail-receiving member 113 with the third extension 1135, the surface of the third main body 1132, and the edge of the third block protrusion 1134. A straight nail channel 117 is located inside the U-shaped nail channel 118, meaning that straight nails and U-shaped nails each have independent, separate nail channels.

[0078] Furthermore, a pusher passage 119 for moving the pusher is formed between the inner side of the third extension 1135 of the third nail receiving member 113 and one end of the second nail receiving member 112 in the width direction. The pusher passage 119 connects the straight nail channel 117 and the U-shaped nail channel 118.

[0079] Figure 10 This is a perspective view of the nail supply unit structure in this embodiment, showing the structure of the internal nail pusher. Figure 10 The first receiving nail component is omitted.

[0080] like Figure 10 As shown, the pusher part 12 includes a first pusher 121, a second pusher 122, an elastic member 123, and a connecting pin 124.

[0081] Figure 11 This is a perspective view of the first pusher pin in this embodiment.

[0082] like Figure 11 As shown, the first pusher 121 includes a first pusher body 1211, a first connecting piece 1212, an elastic connecting piece 1213, and a guide piece 1214.

[0083] The first pusher pin body 1211 is U-shaped. Specifically, it is formed by bending a rectangular sheet along its length so that its two ends in the length direction are close to each other. The first pusher pin body 1211 has a first hole 1211a and two second holes 1211b. The first hole 1211a is located in the bent portion of the first pusher pin body 1211, and the two second holes 1211b are respectively located at the two ends of the first pusher pin body 1211.

[0084] Two first connecting pieces 1212 extend from opposite ends of the first pusher body 1211. The first connecting pieces 1212 are rectangular pieces, and their surface direction is approximately perpendicular to the surface direction of the end of the first pusher body 1211.

[0085] The elastic connecting piece 1213 is square in shape and extends from one end of the first hole 1211a toward the inside of the first push pin main body 1211. That is, it is formed by cutting the first push pin main body 1211 and pushing the cut part inward.

[0086] Both guide plates 1214 are square-shaped and extend opposite to each other from one end of the two second holes 1211b toward the outside of the first pusher main body 1211. The surface direction of the guide plate 1214 is approximately perpendicular to the surface direction of the end of the first pusher main body 1211. That is, it is formed by cutting the first pusher main body 1211 and pushing the cut portion outward.

[0087] Figure 12 This is a perspective view of the second pusher in this embodiment.

[0088] like Figure 12 As shown, the second pusher 122 includes a second pusher body 1221 and a second connecting piece 1222.

[0089] The second pusher rivet body 1221 is plate-shaped, with one end of its length being a rounded rectangle and the width of the other end gradually changing. One end of the second pusher rivet body 1221 in the width direction has multiple pusher rivet protrusions 1221a, arranged sequentially along the length direction of the second pusher rivet body 1221, with a notch formed between adjacent pusher rivet protrusions 1221a. The size and arrangement of the multiple pusher rivet protrusions 1221a correspond to the size and arrangement of the multiple second strip-shaped protrusions 1122 of the second rivet receiving member 112.

[0090] One end of the second connecting piece 1222 in the width direction is connected to the other end of the second pusher body 1221, and the surface direction of the second connecting piece 1222 is perpendicular to the surface direction of the second pusher body 1221.

[0091] The first connecting piece 1212 of the first pusher 121 and the second connecting piece 1222 of the second pusher 122 are fixedly connected together (e.g., welded together) to form an integral pusher block.

[0092] Figure 13 This is an orthographic projection of the nail supply unit in this embodiment.

[0093] like Figure 13 As shown, the first pusher body 1211 of the first pusher member 121 is housed in the U-shaped nail channel 118, and its two elastic connecting pieces 1213 and two guide pieces 1214 are respectively housed in two elastic receiving holes 1112a and limited by the guide groove 1112b.

[0094] The second pusher body 1221 of the second pusher member 122 is housed within the straight nail channel 117, and one end of it having a pusher protrusion 1221a faces the nozzle. The pusher protrusion 1221a and notch on the second pusher member 122 can be combined with the strip-shaped protrusion and strip-shaped groove of the second nail receiving member 112 and the third nail receiving member 113 to form a cavity structure for accommodating the nail body 101 and nail head 102 of the straight nail 100, thereby stably pushing five types of straight nails 100.

[0095] The first connecting piece 1212 of the first pusher 121 and the second connecting piece 1222 of the second pusher 122 are accommodated in the pusher passage 119.

[0096] The connecting pin 124 has a slotted section at one end and a smaller diameter at the other end. The elastic connecting piece 1213 of the first pusher 121 is fitted into the slotted section of the connecting pin 124. The spring 123 is a compression spring, with one end fitted onto and abutting against the other end of the connecting pin 124, and the other end abutting against the fastener (screw) at the first base connecting hole 1116. Therefore, under the force of the spring 123, the first pusher 121 and the second pusher 122 are pushed toward the nozzle. During the movement, the first connecting piece 1212 and the guide piece 1214 act as guides. In addition, the screw provided at the blocking connecting hole 1112c can also block and limit the connecting pin 124. When the connecting pin 124 is blocked by the screw, it can be observed through the observation notch 1112d, thus indicating that the nails are almost used up.

[0097] The connecting member 13 includes two nail-receiving clamping plates 131 and a connecting plate 132.

[0098] The nail-receiving clamping plate 131 has a bent portion, and a structure matching the shape of the nail-receiving portion 11 is formed between a pair of nail-receiving clamping plates 131. Each end of the nail-receiving clamping plate 131 in the longitudinal direction has a connecting hole for connecting the nail feeding unit 10 and a connecting hole for connecting the nail gun, respectively. The width direction of the nail-receiving clamping plate 131 has an extending wedge-shaped end, and both ends of the connecting plate 132 are respectively connected between the two wedge-shaped ends to form an integral component. The connecting member 13 can connect and clamp the nail-receiving portion 11, facilitating the installation of the nail feeding unit 10 onto the main body of the nail gun.

[0099] The nozzle is connected to one end of the nail feeding unit 10 along its length. The nozzle has both straight and U-shaped openings corresponding to the straight nail path 117 and the U-shaped nail path 118, allowing nails to be picked up from the corresponding paths in the nail feeding unit 10. This enables the same nail gun to be used for both straight and U-shaped nails. When it is necessary to switch the type of nail used, simply replace the nail in the nail feeding unit 10.

[0100] Preferably, a nozzle unit used in conjunction with the above-described nail supply unit 10 is shown below.

[0101] Figure 14 and Figure 15 These are, respectively, a perspective view and an exploded view of the nozzle unit in this embodiment.

[0102] like Figures 14-15 As shown, the nozzle unit 20 includes a nozzle body 21, a cover plate 22, and a nail limiting part 23.

[0103] Figure 16 This is a frontal projection of the nozzle body in this embodiment.

[0104] like Figure 16 As shown, the muzzle body 21 is generally plate-shaped, with one end roughly rectangular and the other trapezoidal. The muzzle body 21 has a nail outlet groove 211, a straight nail insertion port 212, a U-shaped nail insertion port 213, a pair of nail magazine connection holes 214, and a pair of gun body connection holes 215.

[0105] The nail ejection groove 211 is a flat rectangular groove, which is provided on one surface in the thickness direction of the nozzle body 21 and located in the middle of the width direction of the nozzle body 21. The nail ejection groove 211 extends and passes through the length direction of the nozzle body 21.

[0106] The straight nail access port 212 is an irregularly shaped hole that runs through the thickness direction of the nozzle body 21 and is located in the middle of the bottom of the nail outlet groove 211. The shape of the straight nail access port 212 is consistent with the cross-sectional shape of the straight nail channel 117.

[0107] The U-shaped nail insertion port 213 is an arc-shaped hole extending along the thickness direction of the nozzle body 21, located at the bottom of the nail outlet groove 211, with both ends close to the side walls of the nail outlet groove 211. The straight nail insertion port 212 is located inside the U-shaped nail insertion port 213.

[0108] Both nail cartridge connection holes 214 are countersunk holes, used to fix the nozzle unit 20 to the nail supply unit 10. When the two are fixedly connected through the nail cartridge connection holes 214 and the nozzle connection holes 1131c, the straight nail channel 117 and the U-shaped nail channel are aligned with the straight nail receiving port 212 and the U-shaped nail receiving port 213, respectively, so that the nails in the nail supply unit 10 can be supplied to the nail outlet slot 211 through the corresponding nail channel and receiving port.

[0109] Figure 17 This is a perspective view of the cover plate in this embodiment.

[0110] like Figure 17As shown, the cover plate 22 is plate-shaped, with one end roughly rectangular and the other trapezoidal, corresponding to the shape of the nozzle body 21. The length of the cover plate 22 is less than the length of the nozzle body 21. The cover plate 22 has two clearance grooves 221 and a pair of nozzle body connecting holes 222.

[0111] The clearance groove 221 is a square strip groove. Two clearance grooves 221 are arranged parallel to each other on one surface of the cover plate 22 in the thickness direction and located at the middle of the cover plate 22 in the width direction. The clearance grooves 221 extend and pass through the cover plate 22 in the length direction. The distance between the two clearance grooves 221 is slightly larger than the diameter of the nail head of the straight nail 100 and smaller than the overall width of the U-shaped nail 200.

[0112] Both nozzle body connection holes 222 are countersunk holes, used to fix the cover plate 22 to the nozzle body 21. After the two are fixedly connected, the clearance groove 221 communicates with the nail outlet groove 211, and one end of the nail outlet groove 211 is the nail outlet 216.

[0113] The nail limiting part 23 includes a limiting connecting seat 231, two spacers 232, a ball bearing 233, and a return spring 234.

[0114] Figure 18 This is a perspective view of the limiting connector in this embodiment.

[0115] like Figure 18 As shown, the limiting connector 231 is fixedly connected to one square end of the nozzle body 21. The limiting connector 231 has two spacer mounting grooves 2311 and two spring receiving grooves 2312, and the spring receiving grooves 2312 are cylindrical grooves.

[0116] The spacer 232 is strip-shaped, with one end of its length being hook-shaped and having a connecting hole. This end of the spacer 232 is rotatably connected to a spacer mounting groove 2311 in the limiting connecting seat 231, and its rotation is limited by the spacer mounting groove 2311.

[0117] The ball 233 and the return spring 234 are disposed in the spring receiving groove 2312 of the limiting connecting seat 231. One end of the return spring 234 abuts against the bottom of the spring receiving groove 2312, and the other end abuts against the ball 233. The ball 233 also abuts against one end of the spacer 232 in the width direction.

[0118] Therefore, when the straight nail 100 enters the nail outlet groove 211 through the straight nail receiving port 212, the straight nail 100 is confined between the two spacers 232 and can be stably fired towards the nail outlet 216. When the U-shaped nail 200 enters the nail outlet groove 211 through the U-shaped nail receiving port 213, the U-shaped nail 200 pushes the two spacers 232 upwards into the clearance groove 221 of the cover plate 22; therefore, the spacers do not affect the ejection of the U-shaped nail 200. After the U-shaped nail 200 is fired, the spacers 232 are reset under the force of the return spring 234.

[0119] The preferred nozzle unit 20 is used, and the inserted straight nail 100 is limited between two spacers 232, while the inserted U-shaped nail 200 is limited between the two side walls of the nail outlet groove 211. It is not easy to cause displacement or skew, so it is not easy for two nails with different wire diameters to get stuck at the nozzle.

[0120] In this embodiment, the parts not described in detail are well-known technologies in the art.

[0121] Functions and effects of the embodiments

[0122] According to the universal nail feeding unit 10 and nail gun provided in this embodiment, the nail feeding unit 10 includes a nail receiving part 11 for accommodating nails and a nail pushing part 12 for pushing nails along the nail track. The nail receiving part 11 has a U-shaped nail track 118 for accommodating U-shaped nails 200 and a straight nail track 117 for accommodating straight nails 100. The straight nail track 117 is located inside the U-shaped nail track 118. That is, U-shaped nails and straight nails each have separate nail tracks and do not share some nail tracks. Therefore, even when the wire diameter difference between U-shaped nails and straight nails is large, they can be fed through their respective nail tracks, and it is not easy for nails to be ejected unevenly or jammed. This allows the same nail gun to be easily switched between firing straight nails and U-shaped nails. In scenarios where such a need exists, it is no longer necessary to equip multiple nail guns, making them more convenient to carry and use, and also reducing equipment costs.

[0123] In this embodiment, the nail receiving part 11 includes three nail receiving components. A U-shaped nail channel 118 is formed between the inner wall of the first nail receiving component 111 and the end of the third nail receiving component 113. A straight nail channel 117 is formed between the opposing surfaces of the second nail receiving component 112 and the third nail receiving component 113, which have strip-shaped protrusions. Furthermore, the first nail receiving component 111 and the second nail receiving component 112 can be pre-assembled as an outer nail clip, and the third nail receiving component 113 can be used as an inner nail clip. The inner nail clip and the outer nail clip are fitted together and fixedly connected by three screws to form the nail receiving part 11. Therefore, the structure of the nail supply unit 10 is simple and reliable, and it is easy to disassemble and assemble, making it convenient for maintenance.

[0124] Furthermore, the straight nail track 117 includes alternating strip-shaped portions 1171 and square portions 1172, which can be applied to straight nails 100 of various lengths. For shorter straight nails 100, it can prevent them from moving too far at the nozzle and affecting the nail ejection effect.

[0125] In this embodiment, the pusher part 12 includes a first pusher 121 and a second pusher 122 fixedly connected. The cross-sectional shape of the first pusher 121 matches the U-shaped nail channel 118 and can move smoothly within the U-shaped nail channel 118. The cross-sectional shape of the second pusher 122 matches the straight nail channel 117 and can move smoothly within the straight nail channel 117, thereby stably pushing the two types of nails to move and supplying the nails to the nozzle.

[0126] Furthermore, the first pusher 121 has an elastic connecting piece 1213 and a guide piece 1214 embedded in the guide groove 1112b of the first nail receiving member 111, and the first pusher 121 is fixedly connected to the second pusher 122. Therefore, during the nail pushing process, the first pusher 121 is guided and limited, and will not rotate or shift position along the U-shaped nail path 118.

[0127] Furthermore, the second pusher 122 has multiple protrusions at the end facing the nozzle, which can cooperate with the strip-shaped protrusions on both sides of the straight nail track 117 to form a cavity for accommodating and supporting the nail body 101 and nail head 102 of the straight nail 100, thereby enabling more stable pushing of straight nails 100 of various lengths.

[0128] In this embodiment, the nail supply unit 10 is used in conjunction with the nozzle unit 20. The nozzle unit 20 has two movable spacers 232. When a straight nail 100 is inserted, the straight nail 100 is limited between the two spacers 232, thereby stably firing the straight nail 100. When a U-shaped nail 200 is inserted, the U-shaped nail 200 pushes the two spacers 232 toward the corresponding groove on the cover plate 22, thus not affecting the nail ejection of the U-shaped nail 200. At the same time, the U-shaped nail 200 is limited between the two side walls of the nail ejection groove 211, thus stably firing the U-shaped nail 200. When used in conjunction with the nozzle unit 20, the stability and reliability of nail ejection can be further improved, and the two types of nails are less likely to get stuck at the nozzle.

[0129] <Variation Example>

[0130] Figure 21 This is the orthographic projection of the nail supply unit in this modified example.

[0131] Figure 22 This is a schematic diagram of the U-shaped nail in this variation.

[0132] like Figures 21-22As shown, this modified example provides a nail feeding unit 10' suitable for straight nails and U-shaped nails, as well as a nail gun. The difference from the embodiment is that the nail feeding unit 10' is suitable for the aforementioned straight nail 100 and U-shaped nail 200'.

[0133] The U-shaped nail 200' has two bends that form a square frame shape, with the two bends forming approximately right angles.

[0134] Correspondingly, the first nail-receiving member 111' has a right-angled U-shaped cross-section, and the bottom of the member receiving groove 1115' is square; the third extension 1135' of the third nail-receiving member 113' extends perpendicularly to the third main body 1132, such that one end of the third nail-receiving member 113' in the width direction is rectangular. This forms a U-shaped nail channel 118' with a right-angled U-shape between the groove wall of the member receiving groove 1115' and this end of the third nail-receiving member 113'. The first pusher body 1211' of the first pusher member 121' has a right-angled U-shaped cross-section.

[0135] If used in conjunction with the preferred nozzle unit 20 described above, the U-shaped nailing opening 213 on the nozzle body 21 of the nozzle unit 20 is also changed to a right-angled U-shape.

[0136] In this variation, the other structures and functions are the same as in the embodiment, so they will not be described again.

[0137] The above embodiments are only used to illustrate specific implementations of the present invention, and the present invention is not limited to the scope of the description of the above embodiments.

[0138] In the above embodiment, the wire diameter of the U-shaped nail 200 is 0.6mm and the overall length is 6~22mm. The size of the U-shaped nail channel 118 matches it. In an alternative, the U-shaped nail can also be of other sizes, and the size of the U-shaped nail channel 118 can match it, which can also achieve the corresponding technical effect.

[0139] In the above embodiment, the straight nail 100 has a wire diameter of 1.05mm and five different lengths. The dimensions of the straight nail track 117 are matched accordingly, and it has five strip sections 1171 and five square sections 1172 that are alternately connected in sequence. In an alternative embodiment, the straight nail 100 can also be of other sizes, and the dimensions of the straight nail track 117 can be matched accordingly. More or fewer strip sections 1171 and square sections 1172 can also be set accordingly, which can also achieve the corresponding technical effect.

Claims

1. A nail feeding unit suitable for straight nails and U-shaped nails, disposed in a nail gun, characterized in that, include: The nail receiving portion has a straight nail channel for receiving straight nails and a U-shaped nail channel for receiving U-shaped nails, the straight nail channel being located inside the U-shaped nail channel; as well as The nail-pushing unit includes a first nail-pushing component disposed within the U-shaped nail track and a second nail-pushing component disposed within the straight nail track, respectively used to push the U-shaped nail in the U-shaped nail track and the straight nail in the straight nail track towards the nozzle direction. The staple-receiving portion includes: The first nail receiving member has a member receiving groove extending along its length direction; A second accommodating member is disposed within the accommodating groove of the member; and The third rivet member has a third main body and a third extension, the third extension being connected to the third main body and bent relative to the third main body. The U-shaped nail channel is formed between the inner wall of the component receiving groove and the end of the third nail receiving component having the third extension. The straight nail path is formed between the second nail receiving member and the third main body.

2. The nail feeding unit applicable to straight nails and U-shaped nails according to claim 1, Its features are: The second nail-receiving component includes: The second main body is rectangular in shape; and Multiple second strip-shaped protrusions are disposed on one side of the second main body portion, all extending along the length direction of the second main body portion and arranged sequentially along the width direction of the second main body portion. The third screw-receiving component further includes: Multiple third strip-shaped protrusions are disposed on one side of the rectangular plate-shaped third main body portion, all extending along the length direction of the third main body portion and arranged sequentially along the width direction of the third main body portion. The shape and arrangement of the plurality of third strip-shaped protrusions correspond to the plurality of second strip-shaped protrusions. The straight nail track is formed between one side of the second main body and one side of the third main body.

3. The nail feeding unit for straight nails and U-shaped nails according to claim 2, characterized in that: in, The second pusher includes: The second pusher nail body is plate-shaped, with multiple pushing protrusions at the end facing the nozzle. The shape and arrangement of the plurality of pushing protrusions correspond to the plurality of the second strip-shaped protrusions.

4. The nail feeding unit for straight nails and U-shaped nails according to claim 2, characterized in that: in, The second receiving pin component further includes: The second block-shaped protrusion is located on the other side of the second main body. The third screw-receiving component further includes: The third block-shaped protrusion is located on the other side of the third main body. The second block-shaped protrusion and the third block-shaped protrusion are respectively connected to the inner walls of the opposite sides of the component receiving groove. The U-shaped nail path is formed between the inner wall of the component receiving groove, the edge of the second block-shaped protrusion, the other side of the second main body, the end of the third nail receiving component having the third extension, the other side of the third main body, and the edge of the third block-shaped protrusion.

5. The nail feeding unit for straight nails and U-shaped nails according to claim 1, characterized in that: in, The third screw-receiving component further includes: The fitting and fixing part has a portion connected to the end of the third main body portion away from the third extension portion. The fitting and fixing part has a pair of component end fitting grooves with opposite openings. The first nail-receiving member has a U-shaped cross-section, with second extensions extending in opposite directions at its two ends. A pair of second extension portions are respectively fitted into a pair of fitting grooves at the ends of the components.

6. The nail feeding unit applicable to straight nails and U-shaped nails according to claim 1, Its features are: The first nail-receiving member further comprises: A pair of guide grooves extend along the length of the first accommodating member and are located on both sides of the accommodating groove of the member. The first pusher pin includes: The first pusher pin body has a U-shaped cross-section and is fitted into the U-shaped pin track; and A pair of elastic connecting pieces extend outward from both ends of the first push pin body and are respectively embedded in a pair of guide grooves. The pusher pin section also includes: An elastic element, one end of which is connected to the elastic element connecting piece and the other end of which is connected to the first nail receiving member, is used to move the first nail pusher toward the nozzle direction.

7. The nail feeding unit for straight nails and U-shaped nails according to claim 6, characterized in that: in, A push-nail passage is also formed between the end of the third extension and the end of the second nail-receiving member, and the two ends of the push-nail passage are respectively connected to the straight nail track and the U-shaped nail track. The first pusher pin has a first connecting piece extending toward its inner side. The second pusher pin has a second connecting piece portion, which is fixedly connected to the first connecting piece portion. The first connecting piece and the second connecting piece are accommodated in the push pin passage.

8. A nail gun, characterized in that, include: The nozzle has a nozzle for firing nails; as well as The nail feeding unit is used to store the nails in the row and sequentially feed the nails from the row to the nozzle. The nail feeding unit is the nail feeding unit applicable to straight nails and U-shaped nails as described in any one of claims 1-7.

9. The nail gun according to claim 8, characterized in that: in, The nozzle has: A straight nail receiving port for receiving straight nails from the straight nail path of the nail supply unit; and The U-shaped nail receiving port is used to receive U-shaped nails from the U-shaped nail channel of the nail supply unit.

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