A tap head-closing structure capable of rapid disassembly

Abstract

The utility model relates to the technical field of taps, specifically a tap head-closing structure that can be quickly disassembled, comprising a circular ring, the top and bottom of the circular ring are respectively connected to a limiting frame, the inner wall of the circular ring is rotatably connected with a cylinder, the inner wall of the cylinder is provided with an arc-shaped through groove, the limiting frame is provided with a limiting groove corresponding to the position of the cylinder, the inner wall of the limiting groove is slidably connected to a sliding rod, the inner wall of the arc-shaped through groove is slidably connected with a sliding rod, and the bottom of the sliding rod is connected with a clamping claw, by arranging the cylinder to rotate on the circular ring, when the cylinder rotates, relative limitation is performed through the connection relationship between the sliding rod and the limiting groove, so that the sliding rod will move closer to or expand each other in the arc-shaped through groove due to the rotation of the cylinder, so as to facilitate the adjustment of the spacing between the clamping claws connected below the sliding rod, so as to facilitate the adaptation to different types of taps, so as to achieve the purpose of quickly adjusting to adapt to different types of taps and disassembly, and has a wide range of applications.

Description

Technical Field

[0001] The utility model relates to the technical field of taps, in particular to a tap head-closing structure which can be quickly disassembled. Background Art

[0002] At present, when tapping a workpiece, the tapping tool (such as a tap) is mostly held with both hands. However, the handle held by both hands often tilts due to uneven force when rotating, resulting in the tap failing to be perpendicular to the workpiece and directly causing the tap to break in the workpiece. This not only causes defects to the workpiece itself (destroying the technical requirements), but can also directly lead to unqualified workpieces in severe cases. At present, there are two main methods in the market: electric spark tapping and manual tapping. The former tapping device has the problems of large size and high cost, and is not suitable for small machinery manufacturing enterprises and students of related majors in some colleges and universities to use during metalworking internships; the latter has the disadvantages of time-consuming operation, and the workpiece may also be damaged, resulting in unqualified and becoming waste.

[0003] The prior art, such as publication number CN208147764U, provides a device for quickly removing broken taps, including a rotating rod, a sleeve and at least two clamping jaws; the rotating rod is provided with an external thread, the sleeve is provided with an internal thread matching the external thread, the sleeve is rotatably sleeved on the rotating rod through the matching external thread and internal thread, and one end of the rotating rod is provided with a collar; one end of the clamping jaw is provided on the sleeve, and the clamping jaws are symmetrically distributed along the axis of the sleeve, and the other end of the clamping jaw is located in the collar, the inner cavity of the collar is a flat-top cone, and each clamping jaw is provided with an inclined surface matching the flat-top cone inner cavity. The broken tap can be easily removed, and the entire device has a simple structure, a small size, and is easy to operate, saving time and effort.

[0004] In this scheme, the sleeve is kept stationary first, and the handle is used to rotate the rotating rod. Due to the threaded fit between the rotating rod and the sleeve, the rotating rod rotates and moves downward, and then pushes the collar downward. In the process of the collar gradually moving downward, the clamping jaws are squeezed toward the middle, and then the broken tap is clamped. After clamping, the clamping jaws, sleeve, rotating rod, collar and tap are fixed together, and then the rotating rod continues to rotate in the same direction, and then the broken tap is driven to rotate in the loosening direction, and the broken tap can be taken out. However, in actual use, in the process of the collar gradually moving downward, the clamping jaws are squeezed toward the middle, and the inclined surfaces on each clamping jaw that match the flat-top conical inner cavity are squeezed through the conical surface of the inner cavity of the collar. The squeezing results in a small adjustable spacing, a small range of adaptability to the disassembly of different types of taps, and low practicality. In view of this, we propose a tap head-destroying structure that can be quickly disassembled. Utility Model Content

[0005] The utility model aims to provide a tap head-closing structure which can be quickly disassembled. The tap head-closing structure which can be quickly disassembled solves the problem that the disassembly adaptability range for taps of different models is small.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A quickly detachable tap head-closing structure comprises a circular ring, the top and bottom of the circular ring are respectively connected to a limiting frame, the inner wall of the circular ring is rotatably connected to a cylinder, the inner wall of the cylinder is provided with an arc-shaped through groove, the limiting frame is provided with a limiting groove corresponding to the position of the cylinder, the inner wall of the limiting groove is slidably connected to a sliding rod, the inner wall of the arc-shaped through groove is slidably connected to a sliding rod, and the bottom of the sliding rod is connected to a clamping claw, by arranging the cylinder to rotate on the circular ring, when the cylinder rotates, relative limit is performed through the connection relationship between the sliding rod and the limiting groove, so that the sliding rod will move closer to or expand each other in the arc-shaped through groove due to the rotation of the cylinder, so as to facilitate the adjustment of the spacing between the clamping claws connected below the sliding rod, so as to facilitate the adaptation to different types of taps, so as to achieve the purpose of quickly adjusting to adapt to different types of taps and disassembly, and has a wide range of applications.

[0008] Preferably, the number of the arc-shaped through grooves is three, which are distributed in a ring array, and the arc-shaped through grooves correspond to the sliding rods one by one.

[0009] Preferably, the clamping surface of the clamping jaw is arranged in an arc shape, which is used to fit the outer wall of the tap, thereby increasing the contact area during clamping and improving stability.

[0010] Preferably, the outer wall of the sliding rod is connected to the top and bottom of the cylinder with limit rings, and the top and bottom of the limit rings are respectively fitted with the limit frame and the cylinder. By connecting the limit rings on the outer wall of the sliding rod, the sliding rod can be relatively limited, which can prevent the sliding rod from moving up and down on the inner wall of the arc-shaped through groove, so as to ensure the stability of the clamping of the clamp.

[0011] Preferably, a worm wheel is provided on the outer wall of the cylinder, a worm is meshingly connected to one side of the worm wheel, the worm is rotatably connected to the top of the ring through a support block, and a knob is connected to one end of the worm, and the worm is rotated by twisting the knob, so that the worm wheel can drive the cylinder to rotate, and the self-locking property brought by the irreversible transmission of the worm and worm wheel itself can lock and adjust the distance between the clamping jaws to facilitate the rotation of the tap for disassembly.

[0012] Preferably, the outer wall of the circular ring is connected to a handle, and the handle is arranged in a circular array, and the tap clamped by the lower clamping claw is driven to rotate for disassembly by holding the handle.

[0013] Preferably, a rectangular groove is provided at the bottom of the sliding rod, a rectangular bar is slidably connected to the inner wall of the rectangular groove, and the rectangular bar is connected to the bottom of the limit frame, and relative limitation is performed through the connection relationship between the rectangular bar and the rectangular groove to facilitate relative limitation of the jaws, so that when the jaws adjust the spacing, the arc surface of the jaws used to fit the outer wall of the tap is offset.

[0014] By means of the above technical solution, the utility model provides a tap head-closing structure that can be quickly disassembled. It has at least the following beneficial effects:

[0015] First, the utility model sets a way that the cylinder rotates in a circular ring. When the cylinder rotates, the slide rod is relatively limited by the connection between the slide rod and the limit groove, so that the slide rod will move closer to or spread out in the arc groove due to the rotation of the cylinder, so as to facilitate the adjustment of the distance between the clamping claws connected below the slide rod, so as to facilitate the adaptation to different types of taps, so as to achieve the purpose of rapid adjustment to adapt to different types of taps and disassembly, and has a wide range of applications.

[0016] Second, the utility model drives the worm to rotate by twisting the knob, so that the worm wheel can drive the cylinder to rotate, and the self-locking property brought by the irreversible transmission of the worm and worm wheel itself can lock and adjust the distance between the rear clamping jaws to facilitate the rear sleeve to drive the tap to rotate for disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the circular ring in the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the cylinder in the utility model;

[0021] Figure 4 It is a structural schematic diagram of the slide bar in the utility model.

[0022] In the figure: 1, circular ring; 11, limiting frame; 111, limiting groove; 12, hand handle; 13, rectangular bar; 131, rectangular groove; 2, cylinder; 21, arc-shaped through groove; 22, worm wheel; 221, worm; 222, support block; 223, knob; 3, slide bar; 31, limiting ring; 32, clamping claw. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] A tap head-closing structure that can be quickly disassembled, such as Figure 1 - Figure 4 As shown, it includes a ring 1, the top and bottom of the ring 1 are respectively connected to a limiting frame 11, the inner wall of the ring 1 is rotatably connected to a cylinder 2, the inner wall of the cylinder 2 is provided with an arc-shaped through groove 21, the limiting frame 11 is provided with a limiting groove 111 at a position corresponding to the cylinder 2, the inner wall of the limiting groove 111 is slidably connected to a slide bar 3, the inner wall of the arc-shaped through groove 21 is slidably connected to the slide bar 3, and the bottom of the slide bar 3 is connected to a clamping claw 32. By setting the cylinder 2 to rotate on the ring 1, when the cylinder 2 rotates, it is relatively limited by the relationship between the slide bar 3 and the limiting groove 111. The slide bar 3 will move closer to or apart in the arc-shaped groove 21 due to the rotation of the cylinder 2, so as to facilitate the adjustment of the spacing between the clamping jaws 32 connected below the slide bar 3, so as to facilitate the adaptation to different types of taps, so as to achieve the purpose of rapid adjustment to adapt to different types of taps and disassembly, and has a wide range of applications. There are three arc-shaped grooves 21 distributed in a circular array, and the arc-shaped grooves 21 correspond to the slide bar 3 one by one. The clamping surface of the clamping jaw 32 is set in an arc surface, which is used to fit the outer wall of the tap, increase the contact area during clamping, and improve stability.

[0026] In this embodiment, by setting the cylinder 2 to rotate on the ring 1, when the cylinder 2 rotates, the slide rod 3 is relatively limited by the connection between the limit groove 111, so that the slide rod 3 will move closer to or spread out in the arc groove 21 due to the rotation of the cylinder 2, so as to facilitate the adjustment of the distance between the clamping claws 32 connected below the slide rod 3, so as to facilitate the adaptation to different types of taps, so as to achieve the purpose of quickly adjusting to different types of taps and disassembling, and has a wide range of applications.

[0027] Example 2

[0028] like Figure 1 - Figure 4As shown, the outer wall of the slide rod 3 is located at the top and bottom of the cylinder 2 and is respectively connected with a limit ring 31, and the top and bottom of the limit ring 31 are respectively fitted with the limit frame 11 and the cylinder 2. By setting the limit ring 31 on the outer wall of the slide rod 3, the slide rod 3 can be relatively limited, and the slide rod 3 can be prevented from moving up and down on the inner wall of the arc-shaped through groove 21 to ensure the stability of the clamping of the clamping claw 32. The outer wall of the cylinder 2 is sleeved with a worm wheel 22, and one side of the worm wheel 22 is meshingly connected with a worm 221. The worm 221 is rotatably connected at the top of the ring 1 through a support block 222. A knob 223 is connected to one end of the worm 221. The worm 221 is driven to rotate by twisting the knob 223, so that the worm wheel 22 can drive the cylinder 2 to rotate, and the cylinder 2 can be rotated by the worm wheel 22. The self-locking property brought by the irreversible transmission of the worm 221 and the worm wheel 22 is used to lock and adjust the distance between the rear jaws 32, so as to facilitate the rotation of the tap for disassembly. The outer wall of the ring 1 is connected with a hand handle 12, and the hand handle 12 is arranged in a circular array. The tap clamped by the lower jaw 32 is driven to rotate for disassembly by holding the hand handle 12. A rectangular groove 131 is provided at the bottom of the slide bar 3. A rectangular bar 13 is slidably connected to the inner wall of the rectangular groove 131, and the rectangular bar 13 is connected to the bottom of the limit frame 11. Relative positioning is performed by the connection relationship between the rectangular bar 13 and the rectangular groove 131 to facilitate relative positioning of the jaws 32, so that when the jaws 32 adjust the spacing, the arc surface of the jaws 32 used to fit the outer wall of the tap is offset.

[0029] In this embodiment, the worm 221 is driven to rotate by twisting the knob 223, so that the worm wheel 22 can drive the cylinder 2 to rotate, and the self-locking property brought by the irreversible transmission of the worm 221 and the worm wheel 22 itself can lock and adjust the distance between the jaws 32, and the relative position limitation is performed through the connection relationship between the rectangular bar 13 and the rectangular groove 131 to facilitate the relative position limitation of the jaws 32, so that when the jaws 32 adjust the spacing, the arc surface of the jaws 32 used to fit the outer wall of the tap is offset.

[0030] When the tap head-closing structure of the utility model can be quickly disassembled, the worm 221 is driven to rotate by twisting the knob 223, so that the worm wheel 22 can drive the cylinder 2 to rotate. When the cylinder 2 rotates, the sliding rod 3 is relatively limited by the connection relationship between the limiting groove 111, so that the sliding rod 3 will move closer to or spread out in the arc-shaped through groove 21 due to the rotation of the cylinder 2, so as to facilitate the adjustment of the spacing between the clamping jaws 32 connected below the sliding rod 3, so as to facilitate the adaptation to different types of taps to achieve the purpose of quickly adjusting and disassembling taps of different types, and the self-locking property brought by the irreversible transmission of the worm 221 and the worm wheel 22 themselves can lock the distance between the clamping jaws 32 after adjustment, and the connection relationship between the rectangular bar 13 and the rectangular groove 131 can be relatively limited, so as to facilitate the relative limitation of the clamping jaws 32, so that when the clamping jaws 32 adjust the spacing, the arc surface of the clamping jaws 32 used to fit the outer wall of the tap is offset.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tap head-closing structure that can be quickly disassembled, comprising a ring (1), characterized in that: The top and bottom of the circular ring (1) are respectively connected to a limiting frame (11); the inner wall of the circular ring (1) is rotatably connected to a cylinder (2); the inner wall of the cylinder (2) is provided with an arc-shaped through groove (21); the limiting frame (11) is provided with a limiting groove (111) at a position corresponding to the cylinder (2); the inner wall of the limiting groove (111) is slidably connected to a sliding rod (3); the inner wall of the arc-shaped through groove (21) is slidably connected to the sliding rod (3); and the bottom of the sliding rod (3) is connected to a clamping claw (32).

2. A quickly detachable tap head-closing structure according to claim 1, characterized in that: The arc-shaped through grooves (21) are three in number and are distributed in a ring array, and the arc-shaped through grooves (21) correspond one to one with the sliding rods (3).

3. A quickly detachable tap head-closing structure according to claim 1, characterized in that: The clamping surface of the clamping jaw (32) is arranged in the form of an arc surface, and is used to fit the outer wall of the tap.

4. The quickly detachable tap head-closing structure according to claim 1, characterized in that: The outer wall of the slide rod (3) is connected and sleeved with a limiting ring (31) at the top and bottom of the cylinder (2), and the top and bottom of the limiting ring (31) are respectively fitted with the limiting frame (11) and the cylinder (2).

5. The quickly detachable tap head-closing structure according to claim 1, characterized in that: The outer wall of the cylinder (2) is sleeved with a worm wheel (22), one side of the worm wheel (22) is meshingly connected with a worm (221), the worm (221) is rotatably connected to the top of the ring (1) through a support block (222), and one end of the worm (221) is connected to a knob (223).

6. The quickly detachable tap head-closing structure according to claim 1, characterized in that: The outer wall of the circular ring (1) is connected to a hand handle (12), and the hand handle (12) is arranged in a circular array.

7. The quickly detachable tap head-closing structure according to claim 2, characterized in that: A rectangular groove (131) is provided at the bottom of the sliding rod (3), a rectangular strip (13) is slidably connected to the inner wall of the rectangular groove (131), and the rectangular strip (13) is connected to the bottom of the limiting frame (11).

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