CN217434082U

CN217434082U - Be applied to pincers from restoring to throne pin joint structure and from restoring to throne pincers

Info

Publication number: CN217434082U
Application number: CN202221342755.6U
Authority: CN
Inventors: 陈熠洋
Original assignee: Zhangjiagang Mingxing Metal Products Co ltd
Current assignee: Zhangjiagang Mingxing Metal Products Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-09-16
Anticipated expiration: 2032-05-31

Abstract

The utility model relates to a be applied to pincers from pin joint structure that restores to throne and from pliers that restores to throne, from pin joint structure that restores to throne through set up spacing breach on first pin joint dish, set up the spacing post of grafting in spacing breach on second pin joint dish, set up precompressed elastic component simultaneously before spacing breach between face and the spacing post to make first pin joint dish rotate relatively and further compress the elastic component after with second pin joint dish, have great restoring force between first pin joint dish and the second pin joint dish, can effectively and make first pin joint dish and second pin joint dish restore to the throne fast. And because the self-resetting pliers adopt the self-resetting pivoting structure, when the first plier head and the second plier head of the pliers are closed, the compressed elastic piece has larger elastic potential energy, and after the holding force on the first plier handle and the second plier handle is released, the elastic force of the elastic piece can effectively and quickly open the first plier head and the second plier head for resetting.

Description

Be applied to pincers from restoring to throne pin joint structure and from restoring to throne pincers

Technical Field

The utility model belongs to the technical field of hardware and tools, concretely relates to be applied to pincers from pin joint structure and from pincers that reset.

Background

The pliers are common tools in daily life, the traditional pliers have no self-resetting function, when the pliers are used, the jaws need to be manually opened, after a workpiece is clamped, the jaws are manually clamped, the workpiece is clamped or cut, therefore, in practical use, the pliers need to be manually operated twice, the operation is troublesome, the working efficiency is low, the pliers are labor-consuming to use, particularly, when the pliers are opened, the pliers are more difficult to open than the pliers are tightly held due to the characteristics of hand joints of people, and even some operators need to open the pliers by means of two hands.

In order to solve the technical problem, utility model patent No. ZL2013200447092 discloses a multifunctional pliers, and this pliers sets up the ring spring through slotting in pivot portion inside, realizes the automatic re-setting of pliers, but this kind of structure exists the problem that reduces pivot portion intensity, leads to pliers life to descend by a wide margin. And the installation difficulty of the coil spring is high, pre-compression is difficult to realize during installation, so that the reset force of the pliers is small, and even the pliers with a relatively tight pivot part can not be automatically reset.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who at first will solve is: the self-resetting pivoting structure applied to the pliers is simple and reliable in structure and convenient to assemble, and solves the technical problems that a coil spring of a traditional self-resetting pliers is high in installation difficulty and difficult to apply pre-compression force during installation.

In order to solve the technical problem, the utility model discloses a technical scheme is: a self-reset pivoting structure applied to pliers comprises a first pivoting disc and a second pivoting disc which are oppositely arranged, wherein a pivoting shaft is vertically connected to the center of the first pivoting disc or the second pivoting disc, a shaft hole matched with the pivoting shaft is formed in the center of the second pivoting disc or the first pivoting disc, the second pivoting disc is rotatably connected with the first pivoting disc through the pivoting shaft, a limiting notch which is sunken towards the center is formed in the outer edge of the first pivoting disc, a limiting column inserted in the limiting notch is arranged on the disc surface of the second pivoting disc, the limiting column is movably inserted in the limiting notch, when the first pivoting disc rotates relative to the second pivoting disc, the limiting column moves back and forth in the limiting notch around the circumferential direction of the pivoting shaft to limit the relative rotating angle of the first pivoting disc and the second pivoting disc, the two ends of the limiting notch in the circumferential direction of the pivoting shaft are a front blocking surface and a rear blocking surface respectively, and a pre-compression elastic element is connected between the front blocking surface and the limiting column, the elasticity of the elastic piece drives the limiting column to be separated from the front blocking face.

As a preferred scheme, a pin hole is respectively formed in each of the first pivoting disc and the second pivoting disc, the distance from the center of each pin hole to the center of the pivoting shaft is equal, a self-locking positioning spring pin is installed in one pin hole, when the two pin holes are coaxial, a button of the self-locking positioning spring pin is pressed, a pin shaft of the self-locking positioning spring pin can be inserted into the other pin hole, the first pivoting disc and the second pivoting disc are locked, and a central angle corresponding to an arc taking the center of the pivoting shaft as a circle between the centers of the two pin holes is not larger than a relative rotation angle between the first pivoting disc and the second pivoting disc.

As a preferred scheme, the elastic part is a pre-compressed coil spring, a positioning hole is formed in a front blocking surface connected with the coil spring, a positioning hole is also formed in the limiting column, the two positioning holes are oppositely arranged, and two ends of the coil spring are respectively inserted into the two positioning holes.

As a preferred scheme, the bottom surface of the limiting notch is a convex arc surface concentric with the pivot shaft, the rear blocking surface is radially arranged along the pivot shaft, and the extension line of the front blocking surface is positioned between the rear blocking surface and the pivot shaft.

The utility model discloses the technical problem that further solve is: the utility model provides a self-resetting pliers, solves the not enough technical problem of present self-resetting pliers restoring force.

In order to solve the technical problem, the utility model adopts the technical scheme that: the self-resetting pliers comprise the self-resetting pivoting structure applied to the pliers, wherein a first plier head and a first plier handle are arranged on two opposite sides of the outer circumferential surface of a first pivoting disc respectively, a second plier head and a second plier handle are arranged on two opposite sides of the outer circumferential surface of a second pivoting disc respectively, the first plier head and the second plier head are arranged oppositely, the first plier handle is opposite to the second plier handle, the first plier handle and the second plier handle are tightly held, when the first plier head and the second plier head are closed, an elastic element is compressed, and when the first plier handle and the second plier handle are loosened, the elastic element drives the first plier head and the second plier head to be separated.

The beneficial effects of the utility model are that: from reset pin joint structure through set up spacing breach on first pin joint dish, set up the grafting at the intraoral spacing post of spacing breach on second pin joint dish, stop simultaneously before spacing breach and set up precompression elastic component between the spacing post to make first pin joint dish rotate relatively with second pin joint dish and further compress the elastic component after, have great restoring force between first pin joint dish and the second pin joint dish, can effectively and make first pin joint dish and second pin joint dish reset fast.

But still can realize first pivoting dish and second pivoting dish from restoring to throne pin joint structure simultaneously relative pivoted angle, when being applied to the pliers, can restrict the aperture of keeping silent, avoid keeping silent the too big and lead to the pincers handle to grip the degree of difficulty and increase.

Simultaneously from pincers that reset through having adopted the aforesaid from the pin joint structure that resets, consequently when the first binding clip and the second binding clip of pliers are closed, the elastic component of compressed has great elastic potential energy, after loosening the power of gripping on first pincers handle and the second pincers handle, the elasticity of elastic component can effectively and open first binding clip and second binding clip fast and reset.

Drawings

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

fig. 1 is an exploded view of the self-resetting pivoting structure of the present invention;

fig. 2 is a perspective view of the self-resetting pivoting structure of the present invention in an assembled state when the self-locking positioning spring pin is not installed;

fig. 3 is a schematic structural view of the self-resetting pliers of the present invention;

in FIGS. 1 to 3: 1. the self-locking pliers comprise a first pivoting disc, a second pivoting disc, a pivoting shaft, a shaft hole, a limiting notch, a limiting column, a limiting block surface, an elastic part, a locking hole, a self-locking positioning spring pin 11, a limiting hole 12, a limiting hole 13a, a first pliers head, a self-locking positioning spring pin 13b, a second pliers head, a self-locking positioning spring pin 14a, a first pliers handle, a self-locking positioning spring hole 14b and a self-locking positioning spring handle.

Detailed Description

The following describes in detail a specific embodiment of the present invention with reference to the drawings.

Example 1:

fig. 1 and fig. 2 show a self-resetting pivot structure applied to pliers, which includes a first pivot disk 1 and a second pivot disk 2 which are oppositely arranged, a pivot shaft 3 is vertically connected to the center of the second pivot disk 2, a shaft hole 4 matched with the pivot shaft 3 is formed in the center of the first pivot disk 1, the second pivot disk 2 is rotatably connected with the first pivot disk 1 through the pivot shaft 3, in actual production, the pivot shaft 3 and the shaft hole 4 can be switched between the first pivot disk 1 and the second pivot disk 2, for example, the pivot shaft 3 is arranged on the first pivot disk 1. The outer edge of the first pivot disc 1 is provided with a limiting notch 5 sunken to the center, a limiting column 6 inserted in the limiting notch 5 is arranged on the disc surface of the second pivot disc 2, the limiting column 6 is movably inserted in the limiting notch 5, when the first pivot disc 1 rotates relative to the second pivot disc 2, the limiting column 6 moves back and forth in the limiting notch 5 around the circumference of the pivot shaft 3 to limit the relative rotation angle of the first pivot disc 1 and the second pivot disc 2, the two ends of the limiting notch 5 in the circumferential direction of the pivot shaft 3 are respectively a front blocking surface 7 and a rear blocking surface 8, a pre-compressed elastic piece 9 is connected between the front blocking surface 7 and the limiting column 6, and the elastic force of the elastic piece 9 drives the limiting column 6 to be separated from the front blocking surface 7.

The first pivoting disc 1 and the second pivoting disc 2 are respectively provided with a pin hole 10, the distance between the center of each pin hole 10 and the center of the pivoting shaft 3 is equal, a self-locking positioning spring pin 11 is installed in one pin hole 10, and the self-locking positioning spring pin 11 is a self-locking positioning spring pin produced and sold by thin and long precision technology (Dongguan) Limited company, belongs to outsourcing products and belongs to the prior art, so the description is omitted herein. When the two pin holes 10 are coaxial, the button of the self-locking positioning spring pin 11 is pressed, the pin shaft of the self-locking positioning spring pin 11 is inserted into the other pin hole 10, so that the first pivoting disc 1 and the second pivoting disc 2 are locked, and the central angle between the centers of the two pin holes 10, which corresponds to the circular arc taking the center of the pivoting shaft 3 as a circle, is not larger than the relative rotation angle between the first pivoting disc 1 and the second pivoting disc 2. The self-locking positioning spring pin 11 can mutually lock the first pivoting disc 1 and the second pivoting disc 2 at a required position, for example, when the self-resetting pivoting structure is applied to the pliers, when two pliers heads are closed, the first pivoting disc 1 and the second pivoting disc 2 are mutually locked, so that the accommodating space of the pliers can be reduced, and the carrying convenience is improved.

In this embodiment, a pre-compressed coil spring is preferably used as the elastic member 9, but other elastic members such as a rubber strip may be used. The front blocking surface 7 connected with the coil spring is provided with a positioning hole 12, the limiting column 6 is also provided with a positioning hole 12, the two positioning holes 12 are oppositely arranged, and two ends of the coil spring are respectively inserted into the two positioning holes 12. The positioning holes 12 are used for fixing and limiting two ends of the coil spring, so that the coil spring is prevented from falling off, and the use stability of the self-resetting pivoting structure is improved.

In this embodiment, the bottom surface of the limiting notch 5 is a convex arc surface concentric with the pivot shaft 3 to ensure the structural strength of the first pivot plate 1 and avoid the occurrence of stress concentration. The rear blocking face 8 is radially arranged along the pivot shaft 3, the extension line of the front blocking face 7 is positioned between the rear blocking face 8 and the pivot shaft 3, when the limiting column 6 rotates to a limit position towards the front blocking face 7, a triangular accommodating area is formed between one face of the limiting column 6, facing the front blocking face 7, and the front blocking face 7 and used for accommodating a compressed elastic piece, so that the length of the elastic piece pressed into the positioning hole 12 can be shortened, and the resistance generated by friction between the elastic piece and the inner wall of the positioning hole 12 is reduced.

Example 2:

as shown in fig. 3, a pair of self-resetting pliers comprises the self-resetting pivoting structure applied to pliers of embodiment 1, wherein two opposite sides of the outer circumferential surface of the first pivoting plate 1 are respectively provided with a first head 13a and a first handle 14a, two opposite sides of the outer circumferential surface of the second pivoting plate 2 are respectively provided with a second head 13b and a second handle 14b, the first head 13a and the second head 13b are arranged opposite, the first handle 14a and the second handle 14b are tightly held, when the first head 13a and the second head 13b are closed, the elastic element 9 is compressed, and when the first handle 14a and the second handle 14b are released, the elastic element 9 drives the first head 13a and the second head 13b to be separated.

The utility model discloses a working process is: combine fig. 1~ 3, from the pin joint structure that restores to throne generally not exclusive use, but be applied to on the pliers, as shown in fig. 3, when using, operating personnel holds first pincers handle 14a and second pincers handle 14b and holds tightly, makes first binding clip 13a and second binding clip 13b draw close each other, keeps silent the closure, and at this moment, first pivot dish 1 is for second pivot dish 2 clockwise turning, and spacing post 6 is close to preceding face 7 that blocks, and elastic component 9 is compressed. This process is a pliers shearing or clamping process.

After the pliers is sheared or the centre gripping is accomplished, operating personnel loosens the hand of holding tightly, at this moment, the power on first pincers handle 14a and the second pincers handle 14b is removed, spacing post 6 and the preceding separation of blocking face 7 are ordered about to the elasticity of elastic component 9, first pivot dish 1 is for 2 anticlockwise rotations of second pivot dish, first binding clip 13a and the separation of second binding clip 13b reset, this process is accomplished by pliers is automatic, operating personnel need not the operation, thereby reduce the operation degree of difficulty of pliers, operating personnel's work efficiency is improved.

The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments in use, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.

Claims

1. A self-resetting pivoting structure applied to pliers is characterized by comprising a first pivoting disc (1) and a second pivoting disc (2) which are arranged oppositely, wherein the center of the first pivoting disc (1) or the center of the second pivoting disc (2) is vertically connected with a pivoting shaft (3), the center of the second pivoting disc (2) or the first pivoting disc (1) is provided with a shaft hole (4) matched with the pivoting shaft (3), the second pivoting disc (2) is rotatably connected with the first pivoting disc (1) through the pivoting shaft (3), the outer edge of the first pivoting disc (1) is provided with a limiting notch (5) which is sunken towards the center, the disc surface of the second pivoting disc (2) is provided with a limiting column (6) inserted in the limiting notch (5), the limiting column (6) is movably inserted in the limiting notch (5), and when the first pivoting disc (1) rotates relative to the second pivoting disc (2), spacing post (6) are around pivot shaft (3) circumference round trip movement in spacing breach (5), the relative rotation angle of first pivot dish (1) of restriction and second pivot dish (2), spacing breach (5) are preceding face (7) and the back face (8) of blockking respectively along pivot shaft (3) circumferencial direction's both ends, preceding face (7) of blockking are connected with precompressed elastic component (9) between spacing post (6) and spacing post (7), spacing post (6) are ordered about to the elasticity of elastic component (9) and are blocked face (7) separation before with.

2. The self-resetting pivoting structure applied to the pliers according to claim 1, wherein the first pivoting disc (1) and the second pivoting disc (2) are respectively provided with a pin hole (10), the distance between the center of the two pin holes (10) and the center of the pivoting shaft (3) is equal, one of the pin holes (10) is internally provided with a self-locking positioning spring pin (11), when the two pin holes (10) are coaxial, a button of the self-locking positioning spring pin (11) is pressed, a pin shaft of the self-locking positioning spring pin (11) is inserted into the other pin hole (10), so that the first pivoting disc (1) and the second pivoting disc (2) are locked, and a central angle corresponding to an arc with the center of the pivoting shaft (3) being circular is not larger than a relative rotation angle between the first pivoting disc (1) and the second pivoting disc (2).

3. The self-resetting pivoting structure applied to pliers according to claim 1, wherein the elastic member (9) is a pre-compressed coil spring, a positioning hole (12) is formed in a front blocking surface (7) connected with the coil spring, a positioning hole (12) is also formed in the limiting post (6), the two positioning holes (12) are oppositely arranged, and two ends of the coil spring are respectively inserted into the two positioning holes (12).

4. The self-resetting pivoting structure applied to pliers according to claim 3, wherein the bottom surface of the limiting notch (5) is a convex arc surface concentric with the pivoting shaft (3), the rear blocking surface (8) is arranged along the radial direction of the pivoting shaft (3), and the extension line of the front blocking surface (7) is located between the rear blocking surface (8) and the pivoting shaft (3).

5. A pair of self-resetting pliers, comprising the self-resetting pivoting structure applied to the pliers as claimed in any one of claims 1 to 4, wherein a first plier head (13 a) and a first plier handle (14 a) are respectively arranged on two opposite sides of the outer circumferential surface of the first pivoting tray (1), a second plier head (13 b) and a second plier handle (14 b) are respectively arranged on two opposite sides of the outer circumferential surface of the second pivoting tray (2), the first plier head (13 a) and the second plier head (13 b) are oppositely arranged, the first plier handle (14 a) and the second plier handle (14 b) are tightly held, so that when the first plier head (13 a) and the second plier head (13 b) are closed, the elastic piece (9) is compressed, when the first clamp handle (14 a) and the second clamp handle (14 b) are released, the elastic piece (9) drives the first tong head (13 a) and the second tong head (13 b) to separate.