Automatic leveling and locking structure for upper shell and lower shell of nail box mechanism of nail gun

Abstract

The utility model discloses an automatic leveling structure for an upper shell and a lower shell of a nail box mechanism of a nail gun, which comprises the upper shell and the lower shell which are arranged in an up-and-down overlapping manner, a connecting seat is arranged at the tail part of the lower shell, two connectors which are arranged at an interval are forwards arranged on the connecting seat, and connecting holes which are coaxially arranged are formed in the two connectors; a connecting arm is arranged at the tail part of the upper shell; the connecting arm is movably hinged with the connecting hole through a pin shaft; the connecting hole is of a special-shaped hole structure, the outline of the whole connecting hole comprises a rear upper arc section, a rear lower arc section and a front lower arc section, and the adjacent arc sections are in transition connection through linear sections. And the pin shaft is assembled in the connecting hole in a clearance fit manner. The automatic leveling and locking structure designed by the utility model can realize seamless butt joint and attachment of the upper shell and the lower shell in a self-adaptive manner, and has the characteristics of simple structure and practicability.

Description

BACKGROUND

[0001] The nail box mechanism of the nail gun is characterized in that the upper shell and the lower shell are automatically leveled and locked. BACKGROUND

[0003] At present, the nail box mechanism of the nail gun is composed of an upper shell, a lower shell and a nail clip with a nail storage and feeding function. The bottom surface of the upper shell is provided with a nail shooting groove in the center, and guide protrusions are arranged on both sides of the nail shooting groove. The nail shooting groove is arranged in a straight line with the center line of the energy storage mechanism and the center line of the needle of the nail gun. The center part of the lower shell is provided with a nail outlet penetrating the upper and lower surfaces, and the nail outlet is communicated with the nail clip below the lower shell.

[0004] The upper part of the tail of the lower shell is provided with a connecting seat, and the connecting seat is provided with a spacing arrangement

[0005] Two connecting heads of the local are provided with coaxially arranged connecting holes; the front part of the lower shell is provided with two spaced clamping hooks. The tail of the upper shell is provided with a connecting arm, which is movably hinged with the connecting hole of the connecting seat through a pin shaft; at the same time, the middle part of the upper shell is provided with a mounting seat, which is hinged with the front end of a rocker arm through a pin shaft, and the middle part of the rocker arm is hinged with an elastic buckle, and the tail of the rocker arm is provided with a wrench. In use, when the wrench is turned to the front end, the elastic buckle can hook the clamping hook, and when the wrench is turned back, the rocker arm is driven to press down, and the pressing down of the rocker arm makes the upper shell generate a locking force obliquely forward and downward through the elastic movable buckle, so that the upper shell is tightly pressed on the upper part of the lower shell.

[0006] In work, the nail clip sends nails into the nail shooting groove one by one through the nail outlet, and the nails are taken out by the forward movement of the needle to complete the nailing operation.

[0007] Here, in order to ensure the normal nailing operation of the needle, it is necessary to ensure the seamless butt joint between the upper shell and the lower shell, so that only one nail enters the nail shooting groove and is smoothly taken out by the needle each time. Once a gap appears between the upper shell and the lower shell, too many nails will enter the nail shooting groove, which not only affects the normal nailing and nail taking of the needle, but also even causes the nail to be stuck, causing the needle gun to be damaged.

[0008] In the above structure, the connecting arm of the tail of the upper shell is movably connected with the connecting hole on the connecting head of the connecting seat through a pin shaft, and the connecting and matching precision of the two plays a key role in seamless butt joint of the upper shell and the lower shell. In this case, the connecting hole in the existing structure is a round hole structure, and there is no adjustment gap in the connection with the pin shaft. If the position of the connecting hole is too high, the position of the pin shaft and the tail of the upper shell will be lifted, thereby causing a gap at the rear end of the upper shell and the lower shell. If the position of the connecting hole is too low, the pin shaft and the tail of the upper shell will be lowered, thereby causing a gap at the front end of the upper shell and the lower shell. In practice, due to the limitation of machining precision and assembly error, the precision of the connecting hole is difficult to guarantee, and eventually the gap between the upper shell and the lower shell occurs from time to time. Practical new type content

[0009] In view of the above problems, the utility model discloses a nail magazine mechanism upper shell and lower shell's automatic leveling locking structure of nail gun, it can self -adaptation realizes seamless butt joint of upper shell and lower shell, has simple and practical characteristics.

[0010] In order to achieve the above object, the utility model adopts the following technical scheme:

[0011] A nail magazine mechanism upper shell and lower shell's automatic leveling structure of nail gun, including upper and lower stacked upper shell and lower shell, the tail of lower shell is provided with a connecting seat, and the connecting seat is provided with two connecting heads of interval arrangement towards the front, and the two connecting heads are provided with coaxial arrangement connecting holes;The tail of the upper shell is provided with a connecting arm, and the connecting arm is movably connected with the connecting hole through a pin shaft, characterized in that: the connecting hole is a special-shaped hole structure, and the profile of the whole connecting hole includes rear upper arc segment, rear lower arc segment and front lower arc segment, and the adjacent arc segments are connected by straight line segments.

[0012] More specifically, the radii of the rear upper arc segment, the rear lower arc segment and the front lower arc segment of the connecting hole are equal or unequal.

[0013] More specifically, the radii of the rear upper arc segment, the rear lower arc segment and the front lower arc segment of the connecting hole are less than the radius of the pin shaft.

[0014] More specifically, the pin shaft is composed of a center shaft and an outer bushing, and one side of the outer bushing is provided with a notch groove.

[0015] More specifically, the middle part of the upper shell and the front end of the lower shell are provided with separable buckle structures, the buckle structures include two hooks arranged at intervals on the front end of the lower shell and an elastic movable buckle arranged on the middle part of the upper shell; meanwhile, the middle part of the upper shell is provided with a mounting seat, the mounting seat is hinged to the front end of a rocker arm through a pin shaft, the middle part of the rocker arm is hinged to the elastic movable buckle, the tail part of the rocker arm is provided with a wrench, when the wrench is turned to the front end, the elastic movable buckle can hook the hooks, and the pressing of the rocker arm can make the upper shell generate a locking force which is inclined to the front and the bottom through the elastic movable buckle, so that the upper shell is tightly pressed on the lower shell.

[0016] More specifically, the middle part of the upper shell and the front end of the lower shell are provided with separable buckle structures, the buckle structures include two hooks arranged at intervals on the front end of the lower shell and an elastic movable buckle arranged on the middle part of the upper shell; meanwhile, the middle part of the upper shell is provided with a mounting seat, the mounting seat is hinged to the front end of a rocker arm through a pin shaft, the middle part of the rocker arm is hinged to the elastic movable buckle, the tail part of the rocker arm is provided with a wrench, when the wrench is turned to the front end, the elastic movable buckle can hook the hooks, and the pressing of the rocker arm can make the upper shell generate a locking force which is inclined to the front and the bottom through the elastic movable buckle, so that the upper shell is tightly pressed on the lower shell.

[0017] The connecting hole on the connecting seat above the tail part of the lower shell is a special-shaped hole structure, the whole hole is composed of a rear upper arc segment, a rear lower arc segment and a front lower arc segment which are connected by straight line segments, thereby forming a water-drop-like hole which is inclined to the front, the connecting hole is matched with the pin shaft with a certain adjustment gap. The connecting hole with the special-shaped hole structure can provide a certain movement gap for the connection with the pin shaft, when the connecting hole is too high or too low due to machining or installation errors, the movement gap can be used to make self-adaptive adjustment combined with the force which is inclined to the front generated by the elastic buckle structure between the upper shell and the lower shell, thereby ensuring seamless butt joint of the upper shell and the lower shell and normal work of the nail gun. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 The utility model discloses a three -dimensional structure schematic diagram;

[0019] Fig. 2 The utility model discloses a three -dimensional structure schematic diagram of connecting seat;

[0020] Fig. 3 The utility model discloses a side view of connecting seat;

[0021] Wherein, 1 - upper shell, 11 - connecting arm, 12 - pin shaft, 121 - central shaft, 122 - outer bushing, 1221 - notch groove, 13 - mounting seat, 14 - rocker arm, 141 - wrench, 15 - elastic movable buckle, 2 - lower shell, 21 - hook, 3 - connecting seat, 31 - connecting head, 311 - connecting hole, 311a - upper arc segment, 311b - rear lower arc segment, 311c - front lower arc segment, 311d - straight line segment, 32 - fixed hole, 321 - bolt. DETAILED DESCRIPTION

[0022] As Figs. 1-3The automatic leveling locking mechanism of the upper shell and the lower shell of the nail magazine mechanism of a nail gun comprises an upper shell 1 and a lower shell 2 arranged in a stack, and a connecting seat 3 arranged above the tail of the lower shell 2, wherein the connecting seat 3 is provided with two connecting heads 31 arranged in a symmetrical interval, and the two connecting heads 31 are provided with connecting holes 311 arranged in a coaxial manner.

[0023] The tail of the upper shell 1 is provided with a connecting arm 11, and the connecting arm 11 is movably hinged with the connecting holes 311 through a pin shaft 12. Here, the pin shaft 12 is composed of a central shaft 121 and an outer bushing 122, and one side of the outer bushing 122 is provided with a notch groove 1221. The structure of the pin shaft 12 can improve the rigidity performance of the overall elastic deformation of the pin shaft 12, so as to facilitate the tight connection of the pin shaft 12 and the matching hole of the connecting arm 11.

[0024] The connecting hole 311 is a special-shaped hole structure, and the profile of the entire connecting hole 311 comprises a rear upper circular arc segment 311a, a rear lower circular arc segment 311b and a front lower circular arc segment 311c, and the adjacent circular arc segments are connected and transitioned through straight line segments 311d, so as to form a water-drop-like hole inclined forward and downward. The connecting hole 311 and the pin shaft 12 are clearance-fitted to form a corresponding adjustment gap, so as to form a self-adaptive adjustment structure of the pin shaft 12 and the connecting hole 311.

[0025] The radii of the rear upper circular arc segment 311a, the rear lower circular arc segment 311b and the front lower circular arc segment 311c of the connecting hole 311 can be equal or unequal, and the structure of equal radius is illustrated in the figure, and the corresponding radius can be selected according to the actual needs. Here, compared with the unequal radius structure, the equal radius structure is more convenient to punch, and is a best selection scheme.

[0026] A detachable buckle structure is arranged between the middle part of the upper shell 1 and the front end of the lower shell 2, and the buckle structure comprises two clamping hooks 21 and an elastic movable buckle 15, wherein the two clamping hooks 21 are arranged at the front end of the lower shell 2 and arranged in an interval, and the elastic movable buckle 15 is installed at the middle part of the upper shell 1. The middle part of the upper shell 1 is provided with a mounting seat 13, the front end of a rocker arm 14 is hinged with the middle part of the mounting seat 13, the middle part of the rocker arm 14 is hinged with the elastic movable buckle 15, and in consideration of the labor-saving operation, the tail of the rocker arm 14 is provided with a wrench 141, which can hook the clamping hook 21 when the wrench 141 is turned to the front end, and can drive the rocker arm 14 to be pressed downward when the wrench 141 is turned backward, so as to make the upper shell 1 generate a locking force inclined forward and downward through the elastic movable buckle 15, and tightly press the upper shell 1 above the lower shell 2.

[0027] Here, the connecting hole structure of the above special-shaped hole and the gap cooperation with the pin shaft 12 can provide a certain self-adaptive adjustment gap for the connection of the connecting hole 311 and the pin shaft 12. Once the connecting hole 311 is high or low due to machining or installation error, the self-adaptive adjustment can be performed in combination with the forward and downward force generated by the elastic buckle structure between the upper and lower shells, and finally the seamless butt joint of the upper shell 1 and the lower shell 2 is realized, and the normal nail shooting work of the nail gun is ensured.

[0028] In order to obtain a better activity adjustment gap, the radii of the rear upper arc segment 311a, the rear lower arc segment 311b and the front lower arc segment 311c of the connecting hole 311 can be slightly smaller than the radius of the pin shaft 12.

[0029] The connecting seat 3 can be integrally or separately provided with the lower shell 2. In the embodiment, the latter is adopted. The connecting seat 3 is provided with a fixing hole 32, and the fixing hole 32 is fixed in the lower fixing hole of the tail of the lower shell 2 through a bolt 321.

[0030] The above is only a preferred embodiment of the present application, and does not limit the application in any form. Any simple modification, equivalent change or modification made according to the technical principle of the present application to the above embodiment still belongs to the scope of the technical scheme of the present application.

Claims

1. A kind of automatic leveling locking structure of upper shell and lower shell of staple magazine mechanism of nail gun, including upper shell (1) and lower shell (2) arranged in upper and lower superposition, the tail of the lower shell (2) is provided with a connecting seat (3), connecting seat (3) is provided with two connecting heads (31) of interval layout towards front, two connecting heads (31) are equipped with coaxial layout connecting hole (311) on it;The tail of the upper shell (1) is equipped with connecting arm (11), connecting arm (11) is movably hinged with the connecting hole (311) by pin shaft (12), it is characterized by: The connecting hole (311) is a special-shaped hole structure, the profile of the whole connecting hole (311) comprises a rear upper circular arc segment (311a), a rear lower circular arc segment (311b) and a front lower circular arc segment (311c), and adjacent circular arc segments are connected by a straight line segment (311d); the connecting hole (311) is in clearance fit with the pin shaft (12) to form an adjusting gap.

2. The automatic leveling and locking structure of the upper shell and the lower shell of a nail magazine mechanism of a nail gun according to claim 1, characterized in that: The rear upper circular arc segment (311a), the rear lower circular arc segment (311b) and the front lower circular arc segment (311c) of the connecting hole (311) are equal or unequal in radius.

3. The automatic leveling and locking structure of the upper shell and the lower shell of a nail magazine mechanism of a nail gun according to claim 1, characterized in that: The rear upper circular arc segment (311a), the rear lower circular arc segment (311b) and the front lower circular arc segment (311c) of the connecting hole (311) are smaller in radius than the pin shaft (12).

4. The automatic leveling and locking structure of the upper shell and the lower shell of a nail magazine mechanism of a nail gun according to claim 1, characterized in that: The pin shaft (12) is composed of a central shaft (121) and an outer bushing (122), and one side of the outer bushing (122) is provided with a notch groove (1221).

5. The automatic leveling and locking structure of the upper shell and the lower shell of a nail magazine mechanism of a nail gun according to any one of claims 1-4, characterized in that: The middle part of the upper shell (1) and the front end of the lower shell (2) are provided with a separable buckle structure, the buckle structure comprises two spaced apart clamping hooks (21) arranged on the front end of the lower shell (2) and an elastic movable buckle (15) arranged on the middle part of the upper shell (1); the middle part of the upper shell (1) is provided with a mounting seat (13), the front end of a rocker arm (14) is hinged in the mounting seat (13), the middle part of the rocker arm (14) is hinged to the elastic movable buckle (15), the tail part of the rocker arm (14) is provided with a wrench (141), when the wrench (141) is turned to the front end, the elastic movable buckle (15) can hook the clamping hook (21), and when the wrench (141) is turned back, the rocker arm (14) is driven to be pressed down, the upper shell (1) is locked to the front and the bottom by the elastic movable buckle (15), so that the upper shell (1) is pressed to the lower shell (2).

6. The automatic leveling and locking structure of the upper shell and the lower shell of a clip magazine mechanism according to any one of claims 1-4, characterized in that: The connecting seat (3) is provided with a fixing hole (32), and the fixing hole (32) is fixed to the tail part of the lower shell (2) by a bolt (321).

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