Blocking assembly, gun nozzle mechanism and execution device of retaining ring nail gun

Abstract

The utility model belongs to the technical field of retaining ring nail clamping tools, and particularly relates to a blocking assembly, a gun nozzle mechanism and an execution device of a retaining ring nail gun. Comprising a mounting part mounted on a gun nozzle; the blocking part is movably arranged on the mounting part; the driving piece acts on the blocking piece to enable the blocking piece to move; wherein one side of the blocking piece is provided with a blocking face used for abutting against the closed end, and the gun nozzle is provided with a through hole for the blocking piece to penetrate out. The blocking piece can provide certain supporting force for the retaining ring nail, the retaining ring nail can be prevented from becoming sharp at the position due to the acting force of the clamp arms, and the retaining ring nail after nail pressing is smoother and fuller in appearance.

Description

Technical Field

[0001] The utility model belongs to the technical field of snap ring nail clamping tools, and in particular relates to a blocking component, a gun nozzle mechanism and an execution device of a snap ring nail gun. Background Art

[0002] A snap nail is a nail with an opening, including C-shaped nails, clamp nails, M-shaped nails, etc. It gradually closes the opening by acting on the edges on both sides of the opening. It is mainly used in situations where multiple bundles of metal wires need to be bundled, such as for bundling or fixing cages, metal nets, and cloth bags.

[0003] Existing tools for clamping snap rings primarily include manual and pneumatic types. Manual tools are simple in structure and generally include a pair of handles for gripping, with a nail magazine located between them. The handles are manually pressed to compress the snap rings in the magazine. Pneumatic tools generally include a pair of clamps mounted on a gun muzzle, which are closed by pneumatic pressure to compress the snap rings in the magazine. The magazines described above generally have similar structures, including inner and outer clamps that are coupled inside and outside, with a space for stacking snap rings between them. The clamping component (handle or clamp) is located at the top of the magazine and compresses the snap ring at a time. Existing magazines generally lack a blocking member, especially for C-shaped nails, which are closed at one end and open at the other. During the compression process, the clamping components primarily act on both sides of the open end. This leaves the closed end unobstructed from the rear, causing the nails to easily become pointed at the closed end. Summary of the Invention

[0004] In order to solve the above problems, the utility model provides a blocking assembly, a gun nozzle mechanism and an execution device of a snap ring nail gun. By setting a blocking member, the blocking member can block the snap ring nail at the rear side of the snap ring nail during the nail pressing process, providing support for the snap ring nail, so that the pressed nail can remain in a round state.

[0005] The utility model adopts the following technical solutions:

[0006] The utility model proposes a blocking assembly for a snap ring nail gun, which has the following characteristics: it is installed on the gun nozzle of the snap ring nail gun and is used to block the closed end of the snap ring nail on the rear side when the snap ring nail is bent. The blocking assembly comprises: a mounting component installed on the gun nozzle; a blocking member movably arranged on the mounting component; and a driving member acting on the blocking member to make the blocking member movable; wherein, a blocking surface for abutting against the closed end is provided on one side of the blocking member, and a through hole is provided on the gun nozzle for the blocking member to pass through.

[0007] The blocking assembly of the buckle nail gun proposed in the present invention also has such a feature that the mounting component is installed at the bottom of the gun nozzle, the main body of the mounting component is a plate-shaped structure, and the middle part protrudes downward to form a mounting block, and the mounting block presses the nail opening toward the side of the gun nozzle to form a mounting groove, the lower end of the blocking member is installed in the mounting groove, and the upper end passes through the through hole, and the driving member is a spring, which is installed inside the mounting groove and rests on the blocking member.

[0008] The blocking assembly of the snap ring nail gun proposed in the present invention also has the following characteristics: the width of the mounting groove is greater than the inner diameter of the through hole, and the blocking member has a step structure adapted to the junction of the mounting groove and the through hole.

[0009] The blocking assembly of the buckle nail gun proposed in the present invention also has the following characteristics: a pair of positioning holes are opened on the gun mouth, and the mounting component is fixed at the positioning holes by a pair of fixing pins.

[0010] The present invention also proposes a gun nozzle mechanism of a snap ring nail gun, which is installed at the front end of the gun body of the snap ring nail gun and has the following characteristics: a gun nozzle; a nail magazine, installed on the gun nozzle; and a blocking assembly, installed on the gun nozzle; wherein the blocking assembly is the blocking assembly of the snap ring nail gun as described above.

[0011] The gun nozzle mechanism of the buckle nail gun proposed in the present invention also has the following features: the gun nozzle is provided with a nail-out hole for receiving the buckle nail and a nail-pressing hole for inserting the object to be tied; the nail magazine is mounted at the nail-out hole, the through hole is located between the nail-out hole and the nail-pressing hole, the portion of the blocking member extending from the through hole is provided with a guide slope on the side facing the nail-out hole, and the side of the blocking member facing the nail-pressing hole is provided with a blocking surface. The through hole is located between the nail-out hole and the nail-pressing hole, the portion of the blocking member extending from the through hole is provided with a guide slope on the side facing the nail-out hole, and the side of the blocking member facing the nail-pressing hole is provided with a blocking surface.

[0012] The gun nozzle mechanism of the buckle nail gun proposed in the present invention also has such a feature that the nail magazine includes an inner clamp and an outer clamp, and a nail storage gap for storing buckle nails is formed between the inner clamp and the outer clamp, and a plurality of buckle nails are vertically stacked in the nail storage gap; a nail feeding assembly for transporting the buckle nails toward the side where the nail outlet hole is located is installed on the inner clamp, and the nail feeding assembly has a nail feeding part and an elastic part, and the nail feeding part includes a nail feeding end and a fixed end, and the nail feeding end has a shape adapted to the buckle nail and is arranged under the buckle nail located at the bottom, and the fixed end is installed on the elastic part. Under the elastic action of the elastic part, the buckle nail always has a tendency to move toward the side where the jaw is located.

[0013] The gun nozzle mechanism of the snap ring nail gun proposed in the present invention also has such a feature that the nail magazine is fixed to the gun nozzle by a fixing assembly, and the fixing assembly comprises: an L-shaped connecting piece, comprising a first connecting piece and a second connecting piece arranged perpendicular to each other, a first fixing pin passing through the gun nozzle and fixed to the first connecting piece; a second fixing pin and a fixing plate, and the second fixing pin passes through the fixing plate and the second connecting piece in sequence and is fixed to the nail magazine.

[0014] The present utility model also proposes an execution device of a snap ring nail gun, which is arranged on the gun body of the snap ring nail gun and is used to act on the snap ring nail to bend the snap ring nail so that the open end of the snap ring nail is closed. It has the following characteristics: a gun nozzle mechanism, which is the gun nozzle mechanism of the snap ring nail gun as described above, and an execution mechanism, which is movably arranged on the gun nozzle and has: a push rod, which is movably arranged on the gun nozzle, a pair of clamp arms, which are rotatably installed on the gun nozzle and contain a pair of jaws matching the shape of the snap ring nail, and the pair of clamp arms realize the opening and closing of the pair of jaws under the drive of the push rod.

[0015] The execution device of the snap ring nail gun proposed in the present invention also has such a feature that the push rod has: a fixed part, which is installed in the gun body; a pushing part, which is used to push the snap ring nail to move; and a pulling part, which is located between the fixed part and the pushing part, and is used to drive a pair of clamp arms to rotate; wherein, the pushing part has a pushing surface on the side facing the snap ring nail, and has a front limiting surface on the side facing the pulling part for abutting against the rotating part; and the pulling part has a rear limiting surface on the side facing the pushing part for abutting against the rotating part.

[0016] The execution device of the snap ring nail gun proposed in the present invention also has such a feature that a side of the pushing portion facing the snap ring nail is provided with an escape opening for avoiding the blocking member.

[0017] Function and effect of utility model

[0018] According to the blocking assembly, gun nozzle mechanism and execution device of the snap ring nail gun of the utility model, a blocking assembly is arranged on the gun nozzle, and the blocking assembly has a driving part and a blocking part. A blocking surface for supporting the closed end of the snap ring nail is provided on one side of the blocking part, which can give the snap ring nail a certain supporting force to prevent the snap ring nail from becoming pointed at this place due to the action of the clamp arm, so that the appearance of the snap ring nail after pressing is smoother and fuller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the buckle nail of the utility model.

[0020] Figure 2 The utility model is a structural diagram of a snap ring nail gun.

[0021] Figure 3 The utility model is a structural schematic diagram of a snap ring nail gun with the front cover removed.

[0022] Figure 4 It is a schematic diagram of the installation structure of the gun nozzle and the actuator of the utility model.

[0023] Figure 5 It is a top view of the installation structure of the actuator and the gun nozzle of the utility model.

[0024] Figure 6 This is an exploded view of the installation structure of the push rod and the gun nozzle of the utility model.

[0025] Figure 7 It is an exploded view of the installation structure of the actuator and the gun nozzle of the utility model.

[0026] Figure 8 It is a schematic diagram of the installation structure of the blocking component of Example 1 of the present utility model.

[0027] Figure 9 It is a cross-sectional view of the installation structure of the blocking component in Example 1 of the present utility model.

[0028] Figure 10 This is an exploded view of the installation structure of the blocking component in Example 1 of the present utility model.

[0029] Figure 11 It is a schematic diagram of the state of the buckle nail of the utility model when it is located at the pressing nail position.

[0030] Figure 12 It is a schematic diagram of the state of the clamp arm of the utility model when pressing nails.

[0031] Figure 13 It is a cross-sectional schematic diagram of the buckle nail of the utility model when it is in the pressing nail position.

[0032] Figure 14 The utility model is a schematic diagram of a nail magazine with buckle nails stored therein.

[0033] Figure 15 It is a structural schematic diagram of the inner clip of the utility model.

[0034] Figure 16 It is a schematic diagram of the installation structure of the nail feeding component of the utility model.

[0035] Figure 17 It is a structural schematic diagram of the utility model in which the driving device is installed in the gun body.

[0036] Figure 18 It is a schematic diagram of the installation structure of the gun nozzle of the utility model.

[0037] Figure 19 This is a positional relationship diagram between the push rod and the clamp arm of the utility model.

[0038] Reference numerals:

[0039] Ring nail 1, open end 2, closed end 3;

[0040] Gun body 10, front cover 11, rear cover 12, handle 13, base 14;

[0041] Nozzle mechanism 20, nozzle 21, through slot 211, nail-exit hole 212, nail-removal position 213, nail-pressing position 214, guide plate 215, stepped mounting hole 2151, nail-pressing opening 216, through hole 217, nail magazine 22, inner clamp 23, outer clamp 24, fixing member 25, nail storage gap 26, nail-feeding assembly 27, nail-feeding member 271, main body 2711, nail-feeding end 2712, fixing end 2713, elastic member 272, spring fixing member 2721, L-shaped connecting piece 28, first connecting piece 281, second connecting piece 282;

[0042] Actuator 30, push rod 31, fixing portion 311, pushing portion 312, pulling portion 313, pushing surface 314, front limiting surface 315, avoidance opening 316, rear limiting surface 317, left clamp arm 32, left jaw 321, driving section 322, working section 323, embedding groove 324, right clamp arm 33, right jaw 331, left roller 34, connecting shaft 341, connecting piece 342, right roller 35, left rotating portion 36, shaft sleeve 361, fixing pin 362, right rotating portion 37, fixing member 38, groove 381, pressure plate 39, top plate 391;

[0043] Driving device 40, guide component 41, energy storage component 42, driving seat 43, driving seat washer 431, power component 45, mounting frame 46, first fixing seat 461, second fixing seat 462, spring mounting seat 463, avoidance groove 464, limiting protrusion 465, mounting platform 466;

[0044] A first fixing pin 51, a second fixing pin 52, and a fixing plate 53;

[0045] Blocking assembly 70 , mounting component 71 , mounting block 713 , blocking member 72 , guiding slope 721 , blocking surface 722 , driving member 73 . DETAILED DESCRIPTION

[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the blocking assembly, nozzle mechanism and execution device of the buckle nail gun of the present invention are described in detail below with reference to the embodiments and drawings.

[0047] It should be noted that when an element is referred to as being “connected,” “disposed,” or “installed” on another element, it may be directly connected to the other element or indirectly connected, disposed, or installed on the other element via an intervening element.

[0048] It should also be noted that the descriptions of "first", "second", etc. in this application are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0049] <Example 1>

[0050] This embodiment provides a snap ring nail gun, in particular an electric snap ring nail gun, for bending snap ring nails. The snap ring nail 1 of this embodiment takes a C-shaped nail as an example. Figure 1 , the structure of the snap ring nail 1 is shown in FIG. , and the snap ring nail 1 is C-shaped as a whole, with an open end 2 and a closed end 3. Figure 2 and Figure 3 An electric snap ring nail gun is shown, which includes a gun body 10, an actuator, a drive device 40, a power supply unit and a control unit, wherein the actuator includes a nozzle mechanism 20 and an actuator 30, the nozzle mechanism 20 is installed at the front end of the gun body 10, and has a nozzle 21, a nail magazine 22 for storing snap ring nails 1 and a blocking assembly 70, the actuator 30 is movably arranged on the nozzle 21, and is used to act on the snap ring nail 1, and the drive device 40 is installed in the gun body 10, and is used to drive the actuator 30 to work.

[0051] like Figure 2 As shown, the gun body 10 is formed by two front and rear cover plates 11 and 12, which are interlocked and fixed by screws. The interior forms a mounting cavity for mounting the drive device 40. The gun body 10 not only accommodates the drive device 40 and other internal components, but also protects these internal components. The gun body 10 includes a handle 13 for the user to hold and a base 14 connected to the handle 13. The handle 13 and the base 14 are both hollow structures. The power supply unit and the control unit are both disposed within the base 14. The power supply unit is used to power the entire electric buckle nail gun. The control unit is electrically connected to the power supply unit and is used to control the operation of the drive device.

[0052] like Figure 3As shown, the gun nozzle mechanism 20 is arranged at the front end of the gun body 10. The gun nozzle mechanism 20 has a plate-shaped gun nozzle 21, a nail magazine 22 for storing the snap ring nail 1, and a blocking assembly 70 for abutting against the rear side of the closed end 3 of the snap ring nail 1 when the snap ring nail 1 is pressed. The gun nozzle 21 is installed between the nail magazine 22 and the gun body 10, and the top of the nail magazine 22 is basically aligned with the bottom of the gun nozzle 21. An actuator 30 for acting on the snap ring nail 1 is movably arranged above the gun nozzle 21. Figure 4 and Figure 5 As shown, the actuator 30 comprises a push rod 31, a pair of clamp arms (left clamp arm 32, right clamp arm 33), a pair of rollers (left roller 34, right roller 35), a pair of rotating parts (left rotating part 36, right rotating part 37), a fixing part 38 and a pressure plate 39. Figure 6 As shown, the push rod 31 comprises a rod body, one end of which is a fixed portion 311 mounted within the gun body, and the other end is a pushing portion 312 for acting on and moving the snap ring 1. The rod body also comprises a pulling portion 313 in the middle, located between the fixed portion 311 and the pushing portion 312. The pulling portion 313 is provided with a left roller 34 and a right roller 35, respectively, via a connecting piece 342 and two connecting shafts 341 and 351. A pair of jaws are rotatably mounted on the gun mouth 21, and a pair of jaws (left jaw 321 and right jaw 331) are defined on the front side. The left jaw 321 and the right jaw 331 are arranged opposite each other and have a shape adapted to the snap ring 1. During operation, the left jaw 321 and the right jaw 331 respectively act on the left and right sides of the open end 2 of the snap ring 1, causing the two jaws to approach each other, causing the open end 2 to bend and gradually close.

[0053] like Figure 6 and Figure 7As shown, a through slot 211 is defined in the middle of the muzzle 21 along its length. A pair of planar guide plates 215 extending along the length are formed on either side of the through slot 211. The push rod 31 is movably mounted on the through slot 211. A left tongs arm 32 and a right tongs arm 33 are pivotally mounted on the guide plates 215 on the left and right sides of the push rod 31 via a left pivoting portion 36 and a right pivoting portion 37, respectively. The left and right tongs arms 32 and 33 have identical structures and are symmetrically arranged. The structure of the left tongs arm 32 will be described in detail below. The left tongs arm 32, bounded by its midsection where it connects to the left pivoting portion 36, has a driving section 322 and an operating section 323 on either side. The driving section 322 is configured to interact with a left roller 34 mounted on the push rod 31. When the push rod 31 moves toward the direction where the gun body is located, the left roller 34 and the right roller 35 can respectively roll along the driving sections 322 of the curved left and right clamp arms 32 and 33, thereby forcing the respective action sections 323 of the left and right clamp arms 32 and 33 located at the front side to rotate inward, so that the left jaw 321 and the right jaw 331 approach each other and bend the buckle nail 1. Conversely, when the push rod 31 moves toward the side where the nail magazine 22 is located, the left roller 34 and the right roller 35 can respectively roll in the opposite direction along the driving sections 322 of the curved left and right clamp arms 32 and 33, thereby forcing the respective action sections 323 of the left and right clamp arms 32 and 33 located at the front side to rotate outward, so that the left jaw 321 and the right jaw 331 move away from each other (open).

[0054] Specifically, the driving end 322 is bent, and the end close to the push rod 31 is provided with an embedding groove 324 for the side of the push rod 31 to be embedded. The driving end 322 forms a first action portion for cooperating with the roller on the side facing the push rod. In this embodiment, the first action portion is actually the action surface 325 of the clamp arm facing the roller. Figure 12 As shown, the roller can roll along the action surface 326. When the roller follows the pulling portion 313 to move backward, the interaction between the roller and the first action surface can gradually bring the two separated jaws closer together until they are closed. The front end of the action section 323 is provided with the left jaw 321 for acting on the buckle nail 1, and the action section 323 is formed with a second action portion that cooperates with the pushing portion on the side facing the push rod 31. In this embodiment, as shown in FIG. Figure 19 As shown, the second action portion is actually a groove-shaped structure 326 opened at the bottom of the clamp arm, which allows the pushing portion 312 to extend into and the two can contact each other. During the forward movement of the pushing portion 312, the interaction between the pushing portion 312 and the second action portion can push the two close clamp arms away from each other.

[0055] The pushing portion 312 of the push rod 31 has a pushing surface 314 on the side facing the buckle nail 1, and has a front limiting surface 315 on the side facing the pulling portion 313 for abutting against the rotating portion. The pulling portion 313 has a rear limiting surface 317 on the side facing the pushing portion 312, which abuts against the rotating portion. That is to say, during the movement of the push rod 31, the front limiting surface 315 and the rear limiting surface 317 will abut against the front and rear sides of the rotating portion, thereby limiting the movement of the push rod 31. When the front limiting surface 315 abuts against the front side of the rotating portion, the push rod 31 is at the rear side of the nail-taking position 213, and can obtain and push the buckle nail 1; when the rear limiting surface 317 abuts against the rear side of the rotating portion, it means that the buckle nail 1 has been pushed to the nail pressing position (such as Figure 8 shown).

[0056] In this embodiment, if Figure 7 As shown, the left rotating portion 36 and the right rotating portion 37 each consist of a sleeve 361 and a fixing pin 362. Mounting holes are defined in the middle of the left and right caliper arms 32 and 33, respectively, and are located at corresponding positions. A pair of stepped mounting holes 2151 are defined on the left and right guide plates 215 of the gun nozzle 21. The sleeves 361 are mounted within the mounting holes, with their lower ends embedded in the stepped mounting holes 51. The fixing pin 362 passes through the sleeves 361 and extends into the stepped mounting holes 2151 on the gun nozzle 21, thereby rotatably mounting the left and right caliper arms 32 and 33 to the gun nozzle 21. The upper surface of the sleeves 361 is slightly higher than the upper surfaces of the caliper arms.

[0057] A block-shaped fixing member 38 is mounted on the end of the muzzle 21 near the gun body. A slot 381 is defined below the fixing member 38 for the push rod 31 to pass through. The upper surface of the fixing member 38 and the upper surface of the shaft sleeve 361 are substantially coplanar. A pressure plate 39 is pressed against the upper surfaces of the fixing member 38 and the shaft sleeve 361. A space is formed between the pressure plate 39 and the left and right guide plates 215 of the muzzle to accommodate a pair of caliper arms. The gap between the lower surface of the pressure plate 39 and the upper surface of the guide plates 215 is small, meaning that this space is just enough for the caliper arms to be installed and rotated, and also provides upper and lower limit stops for the caliper arms' rotation, preventing them from sliding upward during rotation. This space effectively controls longitudinal play, preventing excessive gaps from causing nail collision.

[0058] A top plate 391 is fixed above the pressure plate 39. Both the top plate 391 and the pressure plate 39 are secured to the fixing member 38 and the rotating portion's fixing pins, the fixing member 38, and the gun nozzle 21. The vertical projection of the top plate 391 at least partially overlaps with the vertical projection of the connecting piece 342 for mounting a pair of rollers, thereby limiting the longitudinal position of the connecting piece 342 between the top plate 391 and the rollers and preventing the connecting piece 342 from falling out.

[0059] like Figure 6 and Figure 7 As shown, the through slot 211 defines a nail-out hole 212 whose contour matches the shape of the ring-shaped nail 1. This nail-out hole 212 corresponds to the nail magazine 22. The muzzle 21 has a nail-removal position 213 and a nail-pressing position 214. The nail-out hole 212 is located at the nail-out position 213, while the nail-pressing position 214 is located in front of the nail-out hole 212, i.e., at the front end of the muzzle 21. The left and right jaws 321 and 331 are located at the nail-pressing position 214. The push rod 31 can retrieve the ring-shaped nail 1 at the nail-out position 213 and then push it to the nail-pressing position 214, where the jaws bend and press the ring-shaped nail 1. The muzzle 21 also defines a nail-pressing opening 216 at the nail-pressing position 214 for inserting objects to be tied.

[0060] like Figures 8-10As shown, the blocking assembly 70 is located between the nail removal position 213 and the nail pressing position 214, and includes a mounting component 71, a blocking component 72 and a driving component 73. The main body of the mounting component 71 is plate-shaped and is fixed to the bottom of the gun nozzle 21 by a pair of fixing pins (which can also be bolts). The gun nozzle 21 is located between the nail removal hole 212 and the nail pressing hole 216. A pair of positioning holes are opened on the guide plates 215 on the left and right sides. The mounting component 71 is fixed at the positioning holes by a pair of fixing pins and is located below the gun nozzle 21. The blocking member 72 is movably arranged on the mounting component 71 and is located between the nail removal position 213 and the nail pressing position 214. The driving member 73 is a spring, which is installed between the blocking member 72 and the mounting component 71, and is used to act on the blocking member 72 so that the blocking member 72 has an extended blocking state and a retracted avoidance state. When the blocking member 72 is in the retracted avoidance state, the buckle nail 1 can be pushed by the push rod 31 over the blocking member 72 and moved to the nail pressing position; when the blocking member 72 is in the extended blocking state, the clamp arm can bend the buckle nail. The locking cam 721 is pressed against the locking cam 722 and the locking cam 723 is engaged, and the locking cam 724 is engaged, so that the locking cam 722 is engaged. When the locking cam 72 is in the unlocked position, the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 72 is in the unlocked position, and the locking cam 7 Figure 10 As shown), the closed end 3 can be prevented from protruding backward due to pressure, so that the annular nail can be smoother after the nail is pressed.

[0061] In this embodiment, if Figure 9-10As shown, the main body of the mounting member 71 is plate-shaped, with a downwardly projecting mounting block 713 at its center. Mounting block 713 is hollow and opens toward the side of the muzzle 21, forming a mounting slot. A through hole 217 is provided in the muzzle 21, through which the upper end of the blocking member 72 passes. Through hole 217 is located between the nail-exit hole 212 and the nail-pressing opening 216, and corresponds to the mounting slot. The lower end of the blocking member 72 is mounted within the mounting slot, while the upper end passes through the through hole 217. The width of the mounting slot is greater than the inner diameter of the through hole 217. A stepped structure is formed at the lower end of the blocking member 72, which aligns with the junction of the mounting slot and the through hole 217, thereby enabling the blocking member 72 to be installed there. A spring is also mounted within the mounting slot, with its upper end abutting against the blocking member 72. Driven by the spring's force, the upper end of the blocking member 72 can pass through the through hole 217.

[0062] like Figure 13-15 As shown, the nail magazine 22 includes an inner clip 23, an outer clip 24 and a fixing member 25. The cross-section of the outer clip 24 is basically C-shaped and at least partially surrounds the inner clip 23. The inner clip 23 is hollow and cylindrical, and a nail storage gap 26 for storing the retaining ring nails 1 is formed between the inner clip 23 and the outer clip 24. The nail storage gap 26 has a shape that is compatible with the C-shaped nail, so that several retaining ring nails 1 can be vertically stacked in the nail storage gap 26. The fixing member 25 passes through the inner clip 23 and the outer clip 24 from the bottom to fix the two to each other.

[0063] like Figure 13-16 As shown, a nail feeding assembly 27 for transporting the buckle nail 1 toward the side where the jaws are located is installed on the inner clamp 23, and the nail feeding assembly 27 has a nail feeding member 271 and an elastic member 272. The nail feeding member 271 includes a main body 2711, a nail feeding end 2712 and a fixed end 2713. The nail feeding end 2712 has a shape that is compatible with the buckle nail 1 and is used to be positioned below the buckle nail 1 located at the bottom; the fixed end 2713 is formed by bending one end of the main body 2711 away from the nail feeding end 2712, and is used to be installed on the elastic member 272, so that under the elastic action of the elastic member 272, the buckle nail 1 can always have a tendency to move toward the side where the jaws are located.

[0064] Since the inner clip 23 is hollow, the elastic member 272 is a force spring, which can be installed inside the inner clip 23. The inner clip 23 has a long guide groove 231 along the length direction on the side facing the gun body 10. The fixed end 2713 can pass through the guide groove 231 and be clamped on the force spring. The bottom fixing member 25 is also clamped with a spring fixing member 2721, and the bottom end of the force spring is sleeved on the spring fixing member 2721. When in use, Figure 14As shown, multiple buckle nails 1 are stacked above the nail feeding end 2712. Under the gravity of the buckle nails 1, the force spring is compressed so that the force spring has a certain elastic force. When the first buckle nail 1 at the top is taken away by the push rod 31 and sent out, the second buckle nail 1 will be pushed to the top under the push rod 31 under the elastic force of the force spring, waiting to be taken away next time. In addition, see Figure 14 When the retaining ring nail 1 is stacked in the nail storage gap 26, the retaining ring nail 1 at the top is higher than the top of the inner clamp 23 and the outer clamp 24 under the action of the nail feeding assembly 27, which makes it convenient for the push rod 31 to remove the retaining ring nail 1 and carry it for movement.

[0065] like Figure 13 As shown, the nail magazine 22 is fixed to the gun nozzle 21 through a fixing assembly, which has an L-shaped connecting piece 28, a first fixing pin 51, a second fixing pin 52 and a fixing plate 53. The L-shaped connecting piece 28 contains a first connecting piece 281 and a second connecting piece 282 arranged perpendicular to each other, wherein the first fixing pin 51 and the second fixing pin 52 can both be bolts or screws. The first fixing pin 51 passes through the gun nozzle 21 and the first connecting piece 281 and is fixed with a fixing nut. The second fixing pin 52 passes through the outer clamp 24, the second connecting piece 282, and the fixing plate 53 in turn and is fixed with a fixing nut to achieve the installation and fixation of the nail magazine 22 and the gun nozzle 21.

[0066] like Figure 3 and Figure 17As shown, the driving device 40 has a mounting frame 46, a guide component 41, an energy storage component 42, a driving seat 43 and a power component 45. The mounting frame 46 has a first fixed seat 461 and a second fixed seat 462 arranged at both ends and two left and right connecting plates connecting the two fixed seats. The first fixed seat 461 and the second fixed seat 462 are both fixed on the front cover 11 and the rear cover 12. The guide component 41 is a guide rod mounted on the first fixed seat 461 and the second fixed seat 462. The energy storage component 42 and the driving seat 43 are both movably arranged on the guide rod and located between the first fixed seat 461 and the second fixed seat 462. The energy storage component 42 is an energy storage spring. A spring mounting seat 463 is provided on the first fixed seat 461, and a drive seat washer 431 is provided on the drive seat 43. One end of the energy storage spring is mounted on the spring mounting seat 463, and the other end is mounted on the drive seat washer 431. The push rod 31 is also fixed to the drive seat 43. When the drive seat 43 moves toward the side where the energy storage spring is located, driven by the power component 45, the energy storage spring is compressed, thereby accumulating energy. At the same time, the drive seat 43 moves toward the side where the energy storage spring is located, and the roller on the push rod 31 rolls along the clamp arm, driving the left jaw 321 and the right jaw 331 to move closer together and close together to press the nail. When the drive seat 43 is not affected by the power component 45, the accumulated elastic force of the energy storage spring causes the drive seat 43 to move toward the side where the actuator 30 is located, driving the push rod 31 toward the side where the nail magazine is located, and pushing the retaining nail 1 from the material removal position to the nail pressing position.

[0067] In this embodiment, if Figure 17 As shown, the energy storage component 42 comprises two energy storage springs arranged inside and outside each other. In practice, a single energy storage spring may be used, or two energy storage springs may be installed side by side in parallel, or two energy storage springs may be installed in series along a guide rod. A buffer is also installed on the side of the second fixed seat 462 facing the drive seat 43 to cushion the movement of the drive seat 43 toward the actuator.

[0068] In this embodiment, the fixing portion 311 of the push rod 31 is fixed to the driving device 40. Figure 18As shown, the second fixing base 462 is provided with an escape slot 464 for the other end of the push rod to pass through. The escape slot 464 is aligned with the through slot 211, allowing the other end of the push rod 31 to extend through the escape slot 464 into the through slot 211 and move along the through slot 211. Furthermore, the second fixing base 462 has stopper bumps 465 on either side of the escape slot 464. These two stopper bumps 465 cooperate with the escape slot 464 to guide the movement of the push rod 31 and to limit the push rod 31 left and right, preventing it from deviating from its direction of movement. A mounting platform 466 is formed on one side of the second fixing base 462, on which one end of the muzzle 21 is fixed.

[0069] The working principle of the execution device of this utility model:

[0070] like Figure 11 As shown, at this time, the buckle nail 1 is pushed to the nail pressing position 214 by the pushing end 312 of the push rod 31, and the pushing end 312 is located at a position where it is stuck at the blocking member 72. With this position as the initial position, when pressing the nail, the nail pressing opening 216 is aligned with the object to be tied, and then the push rod 31 moves backward (towards the direction of the gun body). At this stage, the front ends of the left clamp arm 32 and the right clamp arm 33 begin to close to press the nail, while the pushing end 312 keeps moving backward and moves to the rear side of the nail removal position 213 (see Figure 12 After nailing is completed, the push rod 31 moves forward again, and the front ends of the left clamp arm 32 and the right clamp arm 33 are opened, and the previously nailed buckle nail is released; when preparing for the next nailing, the pushing end 312 continues to move forward, pushing the next buckle nail located at the nail removal position 213 to the nailing position 214, returning to the initial position, so as to prepare for the next nailing. Directly using the state when the buckle nail 1 is pushed to the nailing position as the initial state can improve the nailing efficiency.

[0071] <Example 2>

[0072] This embodiment is substantially the same as the first embodiment described above, except that the driving member of the blocking assembly in this embodiment is a pneumatic cylinder mounted on the mounting member, and its extended end is connected to the blocking member. The cylinder drives the blocking member to extend and retract, thereby also achieving the function of the blocking member abutting the closed end of the retaining ring nail. In this structure, because the cylinder can directly drive the blocking member to retract, the blocking member can be a block-shaped structure, eliminating the need for an inclined guide surface on the opposite side of the blocking surface.

[0073] The above embodiments are only used to illustrate specific implementation methods of the present invention, and the present invention is not limited to the description scope of the above embodiments.

Claims

1. The blocking assembly of the snap ring nail gun is characterized by: Installed on the gun mouth of the snap ring nail gun, used to block the closed end of the rear side of the snap ring nail when the snap ring nail is bent, comprising: A mounting component, mounted on the gun nozzle; a blocking member movably disposed on the mounting component; and a driving member, acting on the blocking member to move the blocking member; Wherein, a blocking surface for abutting against the closed end is provided on one side of the blocking member, and a through hole for the blocking member to pass through is provided on the gun nozzle.

2. The blocking assembly of the snap ring nail gun according to claim 1, characterized in that: The mounting component is installed at the bottom of the gun nozzle. The main body of the mounting component is a plate-shaped structure, and the middle part protrudes downward to form a mounting block. The mounting block is opened on one side of the gun nozzle to form a mounting groove. The lower end of the blocking member is installed in the mounting groove, and the upper end passes through the through hole. The driving member is a spring, which is installed inside the mounting groove and abuts against the blocking member.

3. The blocking assembly of the snap ring nail gun according to claim 2, characterized in that: The width of the mounting groove is greater than the inner diameter of the through hole, and the blocking member has a step structure adapted to the junction of the mounting groove and the through hole.

4. The blocking assembly of the snap ring nail gun according to claim 2, characterized in that A pair of positioning holes are provided on the gun nozzle, and the mounting component is fixed at the positioning holes through a pair of fixing pins.

5. The gun nozzle mechanism of the snap ring nail gun is installed at the front end of the gun body of the snap ring nail gun, characterized in that: include: Gun muzzle, a nail magazine, mounted on the gun mouth; as well as a blocking assembly, mounted on the gun mouth; Wherein, the blocking component is the blocking component of the buckle nail gun as described in any one of claims 1-4.

6. The gun nozzle mechanism of the snap ring nail gun according to claim 5, characterized in that: The gun muzzle is provided with a nail-out hole for obtaining the buckle nail and a nail-pressing hole for inserting the tied object; the nail magazine is installed at the nail-out hole, the through hole is located between the nail-out hole and the nail-pressing hole, the part of the blocking member extending out of the through hole is provided with a guiding inclined surface on the side facing the nail-out hole, and the blocking member is provided with the blocking surface on the side facing the nail-pressing hole.

7. The gun nozzle mechanism of the snap ring nail gun according to claim 6, characterized in that: The nail magazine includes an inner clip and an outer clip, and a nail storage gap for storing the buckle nails is formed between the inner clip and the outer clip, and a plurality of buckle nails are vertically stacked in the nail storage gap; The inner clamp is provided with a nail feeding assembly for transporting the buckle nail toward the side where the nail outlet hole is located. The nail feeding assembly comprises a nail feeding member and an elastic member. The nail feeding member comprises a nail feeding end and a fixed end. The nail feeding end has a shape adapted to the buckle nail and is arranged under the buckle nail at the bottom. The fixed end is mounted on the elastic member. Under the elastic action of the elastic member, the buckle nail always has a tendency to move toward the side where the jaw is located.

8. An actuator of a snap ring nail gun, provided on the gun body of the snap ring nail gun, for acting on the snap ring nail to bend the snap ring nail so as to close the open end of the snap ring nail, characterized in that: include: The nozzle mechanism is the nozzle mechanism of the snap ring nail gun according to any one of claims 5 to 7, and The actuator is movably arranged on the gun nozzle and has: A push rod is provided on the gun nozzle for movement. A pair of clamp arms are respectively rotatably mounted on the gun mouth through a rotating part and include a pair of jaws matching the shape of the buckle nail. The pair of clamp arms realize the opening and closing of the pair of jaws under the drive of the push rod.

9. The actuator of the snap ring nail gun according to claim 8, characterized in that: The push rod has: A fixing portion, mounted in the gun body; a pushing portion, used for pushing the buckle nail to move; and a pulling portion, located between the fixing portion and the pushing portion, and configured to drive the pair of clamp arms to rotate; The pushing portion has a pushing surface on its side facing the buckle nail, and a front limiting surface on its side facing the pulling portion for abutting against the rotating portion; the pulling portion has a rear limiting surface on its side facing the pushing portion for abutting against the rotating portion.

10. The actuator of the snap ring nail gun according to claim 9, characterized in that: A side of the pushing portion facing the buckle nail is provided with an escape opening for avoiding the blocking member.

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