CN117145846A - Fastening pin capable of being quickly disassembled and assembled - Google Patents

Abstract

The application relates to the technical field of fasteners, and provides a quick-to-detach fixing pin which comprises a pin rod, a pin core and an actuating assembly; the pin rod is provided with a perforation in the axial direction, one end of the pin rod is provided with an adjusting part, the other end of the pin rod is movably connected with a locking part, and the adjusting part can move along the axial direction of the pin rod so as to control the interval between the adjusting part and the locking part; the pin core is connected in the perforation in a sliding way, one end of the pin core is abutted with one end of the locking part, and the other end of the pin core is associated with the actuating assembly, so that the actuating assembly can drive the pin core to reciprocate in the perforation; wherein, the movement of the pin core can drive the locking part to be unfolded to the locking position; or the movement of the pin core makes the locking part separate from the abutting joint with the pin core so as to make the locking part be in the unlocking position. According to the application, through the arrangement of the actuating assembly, locking and unlocking can be completed on one side of the fastening surface, so that the operation is convenient, and when the locking is performed, the dead point principle of the connecting rod mechanism is utilized, so that the error unlocking error is avoided, and the reliability is high.

Description

Fastening pin capable of being quickly disassembled and assembled

Technical Field

The application relates to the technical field of fasteners, in particular to a fastening pin capable of being quickly disassembled and assembled.

Background

The fastening pin is suitable for various fields, and the locking of the component can be realized through the fastening pin. If the bolts are commonly used in the market, a rotating moment is applied to the bolts at two ends, so that the bolts at two ends are gradually closed and fastened, the bolt fastening mode needs to be capable of applying the rotating moment at two ends of the bolts to play a role in fastening, and the bolt fastening mode is difficult to be applied under the condition that only one end can be operated.

The conventional fastening method by one end operation, such as expansion bolts, is difficult to unlock, difficult to recycle and inconvenient to operate in an environment with limited mine illumination. In the existing mine construction, the procedures of frequent disassembly and assembly among the flat plates exist, the existing fasteners such as bolts are adopted for locking, and the disassembly and assembly efficiency is low. Therefore, a quick assembly and disassembly fastening pin which meets the underground safety requirement, has high reliability, good adaptability, convenient operation and certain pretightening force and fastening force and is quick to assemble and disassemble is needed.

Disclosure of Invention

The application provides a fastening pin capable of being quickly disassembled and assembled, which is used for solving the defects of complicated disassembly and assembly and poor reliability in the prior art.

The application provides a fastening pin capable of being quickly disassembled and assembled, which comprises the following components: a pin rod, a pin core, and an actuation assembly;

the pin rod is provided with a perforation in the axial direction, one end of the pin rod is provided with an adjusting part, the other end of the pin rod is movably connected with a locking part, and the adjusting part can move along the axial direction of the pin rod so as to control the interval between the adjusting part and the locking part;

the pin core is connected in the through hole in a sliding way, one end of the pin core is in abutting fit with one end of the locking part, and the other end of the pin core is associated with the actuating assembly, so that the actuating assembly can drive the pin core to reciprocate in the through hole;

wherein, the movement of the pin core can drive the locking part to be unfolded to a locking position; or, the movement of the pin core causes the locking portion to be out of abutment with the pin core, thereby causing the locking portion to be in an unlocked position.

According to the quick-disassembly fastening pin provided by the application, the actuating assembly comprises a base, a compression ring and a connecting rod; the base is arranged at one end of the pin rod, which is far away from the locking part, the pressing ring is hinged with the base, and the connecting rod is arranged between the pressing ring and the pin core so as to convert the swinging motion of the pressing ring into the reciprocating motion of the pin core through the connecting rod;

the pressing ring is provided with an elastic piece, so that the pin core can keep the current locking position or unlocking position through the elastic piece.

The fastening pin capable of being quickly disassembled and assembled further comprises a handle, wherein the handle is connected with one end, far away from the locking part, of the pin core.

According to the quick-disassembly fastening pin provided by the application, the locking part comprises the locking column, one end of the locking column is provided with the eccentric hinge hole, the eccentric hinge hole is hinged on the pin rod through the hinge shaft, and the other end of the locking column freely stretches out.

According to the quick-disassembly fastening pin provided by the application, the locking column is provided with the abutting surface abutting against the pin core, and the abutting surface is constructed into an arc-shaped structure so that the abutting surface can abut against the pin core.

According to the quick-disassembly fastening pin provided by the application, the pressing ring is provided with the hinged end and the holding end, the hinged end of the pressing ring is hinged with the base, and the holding end of the pressing ring freely extends along the outer side of the base.

According to the quick-disassembly fastening pin, the quick-disassembly fastening pin further comprises a limit nut, the base is rotatably connected with the limit nut, and the limit nut is in threaded connection with one end, far away from the locking part, of the pin rod.

According to the fastening pin capable of being quickly disassembled and assembled, one end of the pin core matched with the locking part is in a conical columnar structure.

According to the quick-disassembly fastening pin provided by the application, the pin core is provided with the locking surface which is arranged along the axial direction, and the locking surface is abutted with the locking part.

According to the quick-disassembly fastening pin provided by the application, the adjusting part comprises the distance adjusting nut and the baffle disc, and the baffle disc is arranged at one end of the distance adjusting nut, which is close to the locking part.

According to the quick-disassembly fastening pin, through the arrangement of the actuating assembly, locking and unlocking can be completed on one side of the fastening surface in particular during operation, so that the quick-disassembly fastening pin is convenient to operate, and when locking is performed, the dead point principle of the connecting rod mechanism is utilized, so that error unlocking errors are avoided, and the reliability is high.

Drawings

In order to more clearly illustrate the application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a fastening pin provided by the present application;

FIG. 2 is a front view block diagram of a fastening pin provided by the present application;

FIG. 3 is an exploded view of the structure of the fastening pin provided by the present application;

FIG. 4 is a side elevational view of the securing pin of the present application;

FIG. 5 is a cross-sectional view of the structure of the D-D direction of FIG. 4 provided by the present application;

fig. 6 is an enlarged view of the structure at a in fig. 5 provided by the present application.

Reference numerals:

100. a pin rod;

200. a pin core; 210. a conical structure; 220. a locking surface;

300. an actuation assembly; 310. a base; 320. a compression ring; 330. a connecting rod; 340. an elastic member; 350. a limit nut;

400. a handle; 410. a hinge lug;

500. an adjusting section; 510. a baffle disc; 520. a distance adjusting nut;

600. a locking part; 610. an abutment surface; 620. eccentric hinge holes.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

A quick-release fastening pin according to the present application is described below with reference to fig. 1-5, and is configured to be used as a fastening member for fastening a plate body, and is particularly suitable for use in downhole environments of mines and environments with limited illumination. The fastening pin includes a pin shaft 100, a pin core 200, and an actuation assembly 300; the pin 100 is provided with a through hole in the axial direction, one end of the pin 100 is provided with an adjusting part 500, the other end of the pin 100 is movably connected with a locking part 600, and the adjusting part 500 is configured to be capable of moving along the axial direction of the pin 100 so as to control the interval between the adjusting part 500 and the locking part 600; the pin core 200 is slidably connected in the through hole, one end of the pin core 200 is in abutting fit with one end of the locking part 600, and the other end of the pin core 200 is associated with the actuating assembly 300, so that the actuating assembly 300 can drive the pin core 200 to reciprocate in the through hole; wherein movement of the pin core 200 can drive the latch 600 to be deployed to a latched position; or, the movement of the pin core 200 causes the locking portion 600 to be out of abutment with the pin core 200, thereby causing the locking portion 600 to be in the unlocked position.

The actuating assembly 300 can realize the moving operation of the pin core 200 and can keep the pin core 200 at the locking position under the action of external force, and the whole operation process is finished at one side of the fastening surface, so that the operation is convenient. One end of the pin core 200 is engaged with the locking portion 600, and the locking portion 600 can be locked and unlocked during movement of the pin core 200. When the lock portion 600 is in the extended state, the lock portion 600 is in the locked position, and when the lock portion 600 is out of contact with the pin core 200, the lock portion 600 is in the free state, and the lock portion 600 is in the unlocked position.

It will be appreciated that the free state is a state in which the pin moves rearward, as shown in fig. 1 and 5, so that the locking portion is disengaged from the force generated by the abutment and can be freely rotated under a small external force. The extended state is a state when the locking portion 600 is rotated to be substantially perpendicular to the axial direction of the pin shaft 100, and both states can achieve unlocking and locking effects, respectively. Specifically, when the locking device is unfolded, the protruding end of the locking part 600 exceeds the outer wall surface of the pin rod 100 through the movement of the pin core 200, so that a locking area is formed between the locking part 600 and the adjusting part 500, and the locking requirements of different sizes can be adapted through the operation of the size of the interval between the locking areas. At the time of unlocking, the locking portion 600 is released from contact with the pin core by movement of the pin core 200 (the movement direction is opposite to the direction of movement at the time of locking), and at this time, the locking portion is in a free state, and when the pin rod is pulled by an external force, the locking portion can be rotated to be substantially parallel to the axial direction of the pin rod 100, and at this time, unlocking of the fastening pin is achieved.

Specifically, as shown in fig. 3, the locking is achieved by the driving of the pin core 200 to move in the right direction so that the locking portion 600 is spread out, whereas the locking portion 600 can be brought out of abutment by the driving of the pin core 200 to move in the left direction so that a freely rotatable state is established.

In some embodiments, the actuation assembly 300 includes a base 310, a compression ring 320, and a linkage 330; the base 310 is arranged at one end of the pin 100 away from the locking part 600, the compression ring 320 is hinged with the base 310, and the connecting rod 330 is arranged between the compression ring 320 and the pin core 200, so that the swinging motion of the compression ring 320 is converted into the reciprocating motion of the pin core 200 through the connecting rod 330; the compression ring 320 is provided with an elastic member 340, so that the pin core 200 can maintain a current locking position or unlocking position through the elastic member 340.

Specifically, the number of the pressing rings 320 may be one or more, and when the pressing rings 320 are one, the elastic member 340 connected to the pressing rings 320 is connected to the pin 100 to maintain the stability of the locked state or the unlocked state. When the number of the pressing rings 320 is plural; for example, as shown in fig. 1 and 2, two pressing rings 320 are disposed on both sides of the pin shaft 100 in a symmetrical arrangement. Of course, more than two compression rings 320 may be provided, and the compression rings 320 may be kept in a locked state or an unlocked state by connecting the elastic members 340 between each other. It should be noted that, for the selection of the number of the compression rings 320, those skilled in the art can adjust the number according to actual needs, which is not described in detail.

The compression ring 320 is connected with the base 310 in a hinged manner, and the base 310 is arranged on the pin 100, so that the compression ring 320 can swing with a certain amplitude by taking a hinged point with the base 310 as a swing center, and has a certain amplitude displacement in an axial direction in the swing process of the compression ring 320.

In addition, the elastic member 340 may be a member capable of elastic deformation. For example, in an embodiment of the elastic member 340 of the present application, two ends of the tension spring are respectively connected between the two compression rings 320, and the tension spring is always in a stretched state, which can keep the state of the current pin core 200 stable through the action of the tension spring when locking.

In the above embodiment, the connecting rod 330 is disposed between the compression ring 320 and the pin core 200, and a specific manner may be that one end of the connecting rod 330 is hinged to the compression ring 320, and the other end of the connecting rod 330 is hinged to the pin core 200, where there may be various manners for hinging the connecting rod 330 to the pin core 200. For example, a hinge seat may be provided at an end of the pin core 200, and the hinge connection with the pin core 200 may be achieved by means of the hinge seat. For example, when two compression rings 320 are configured, the two compression rings 320 are symmetrically disposed on the base 310, and at this time, the base 310 is of a strip structure, and the compression rings 320 are configured at two symmetrical sides of the strip structure, as shown in fig. 2, the two opposite arrangement modes can make the manual holding more convenient. Of course, in the embodiment of the present application shown in fig. 5, the connecting rod 330 is directly hinged to the handle 400, so that the connecting rod 330 is disposed between the compression ring 320 and the pin core 200. Specific examples are described by way of the following examples.

In a specific example, the compression ring 320 has a hinged end and a gripping end, the hinged end of the compression ring 320 being hinged to the base 310, the gripping end of the compression ring 320 extending freely along the outside of the base 310.

As further shown in fig. 2, the hinged end of the pressing ring 320 is provided with a long hole, a hinge shaft is arranged in the long hole, the connecting rod 330 is hinged through the hinge shaft and can rotate in the range of the long hole, the whole holding end of the pressing ring 320 is of an annular structure, and the end part of the holding end can protrude along the left side, so that when the fastening pin is in a locking position, the end part of the holding end is provided with a space capable of being manually held, the holding is convenient, and especially, quick holding operation is realized in environments with limited illumination such as mines.

It will be appreciated that, as further shown in fig. 2, the compression ring 320 can slide along the perforations in the pin shaft 100 to assume different positions during oscillation. For example, when the abutment surface of the lock portion 600 contacts the tapered surface region of the pin 200 as shown in fig. 6, the lock portion 600 is gradually expanded as the pin 200 moves further, and when the lock portion 600 contacts the lock surface 220, the pin 200 and the lock portion 600 lock at this time, and the lock portion 600 is fully expanded to lock. When the fastening pin needs to be detached, unlocking of the fastening pin can be achieved by pulling the pressing ring 320 or the auxiliary pulling handle 400. Specifically, the size of the compression ring 320 is configured to greatly exceed the outer portion of the rod body of the pin rod 100, so that the pulling can be more convenient and labor-saving.

Some embodiments further include a handle 400, the handle 400 being connected to one end of the pin 200. The connection of the handle 400 to the core 200 enables an auxiliary moving operation to be performed by grasping the handle 400 when the core 200 is driven to move.

It can be appreciated that the arrangement of the handle 400 can provide a more effective force-receiving contact surface than the prior art fastening pin structure, so that the handle is more stable when held, and the driving of the pin core 200 can be more conveniently achieved. Specifically, the handle 400 is fixedly connected to the end of the pin core 200 in a bolt-fixing connection structure. More specifically, an external thread is formed at the connection end of the pin core 200 and the handle 400, and a threaded hole is formed in the middle of the handle 400, and the pin core 200 passes through the threaded hole to fixedly connect the handle 400 to the pin core 200 through a nut.

In the above embodiment, through the connection to the handle 400 at the end of the pin core 200, the manual holding can be realized conveniently under the condition of limited lighting conditions such as mines, the external force can be realized rapidly to drive the movement of the pin core 200, and the handle 400 is provided with more force points, so that the manual application of force can be facilitated, and the convenience of disassembly and assembly is improved.

As shown in fig. 2 and 3, a hinge lug 410 is connected to an edge of one end of the handle 400 connected to the pin 200, one end of the link 330 is hinged to the hinge lug 410, and the handle 400 is fixedly connected to the pin 200. Therefore, the connecting rod 330 can be provided between the pin 200 and the pressing ring 320 in the above-described manner.

Specifically, the connecting rods 330 include two groups, each group of connecting rods 330 has two connecting pieces, the two connecting pieces are hinged with the two compression rings 320 respectively, and the other ends of the two connecting pieces are commonly hinged on the hinge lugs 410, so as to realize connection between one group of connecting rods 330 and the two compression rings 320.

In a specific example, the locking part 600 includes a locking post having an eccentric hinge hole 620 at one end thereof, the eccentric hinge hole 620 being hinged to the pin shaft 100 through a hinge shaft, and the other end of the locking post freely protruding.

In order to make the locking effect good, have more stable locking effect, dispose a plurality of when disposing the locking post. Specifically, notches are provided at the end of the pin shaft 100, a rotation shaft is provided in each notch, and the eccentric hinge hole 620 on the locking post is rotatably connected to the rotation shaft, so that the locking post can rotate around the rotation shaft, thereby enabling the locking post to rotate to a shape body substantially perpendicular or substantially parallel to the pin shaft 100, thereby achieving locking and unlocking.

As shown in fig. 3, the locking columns are preferably provided with four locking columns, and the four locking columns are uniformly arranged in the circumferential direction of the end of the pin shaft 100, so that each locking column can be uniformly stressed when being locked, the reliability and the adaptability of the locking column are improved, and the stability of locking can be improved through the arrangement of the four locking columns. It should be noted that the above limitation on the number of locking posts is merely illustrated as an example, and is not to be construed as limiting the number of locking posts in the present application. It can be understood that the arrangement of the four locking columns ensures that the locking contact area at the end is larger, the adaptability of the pin holes with different diameters is strong, the locking failure is not easy to occur, and the reliability and the adaptability are further improved. Correspondingly, the four locking posts correspondingly have four locking surfaces 220 on the pin core 200, so that the rod body of the pin core 200 has a quadrangular prism structure.

Further, the locking post has an abutment surface 610 that abuts the pin core 200, and the abutment surface 610 is configured in an arc-shaped structure such that the abutment surface 610 always abuts the pin core 200.

The abutment surface 610 is in contact with the pin core 200 and can realize rotation of the pin core 200 during movement of the pin core 200, and is fixedly arranged in an arc-shaped structure. Specifically, the abutment surface 610 is configured to have a circular arc structure, and abuts against the pin core 200 by the circular arc structure, thereby enabling the lock cylinder to rotate when the pin core 200 moves.

As shown in fig. 5 and 6, the end of the pin core 200 that cooperates with the locking portion 600 has a tapered columnar structure.

In the above embodiment, the head of the pin core 200 is configured as the tapered structure 210, that is, the tapered structure 210 is formed by the small to large cross-sectional diameter of the head initial section of the pin core 200. It will be appreciated that the locking post is provided with an eccentric hinge hole 620 which allows the abutment surface 610 on the locking post to contact the tapered surface of the tapered structure 210 and effect rotation of the locking post.

Some embodiments further include a stop nut 350, where the base 310 is rotatably connected to the stop nut 350, and where the stop nut 350 is threadably connected to an end of the pin shaft 100 remote from the locking portion 600.

The section of the rod body of the pin rod 100, which is close to the locking part 600, is of a polish rod structure, and the remaining rod body part is provided with external threads. For example, as shown in fig. 2, an external thread is formed on the shank of the pin 100 remote from the locking portion 600, the external thread extending to a substantially middle position of the shank, and the stop nut 350 is screwed to an end position of the shank having the external thread.

It can be appreciated that the base 310 is disposed on the limit nut 350, the limit nut 350 can move along the axial direction of the pin shaft 100 in a threaded rotation manner, and the displacement of the pin core 200 can be affected by the movement of the base 310 on the pin shaft 100, so that the lock position of the pin core 200 can be adjusted by the limit nut 350 at the position of the pin shaft 100, thereby improving the applicability thereof.

Further, the pin core 200 has a locking surface 220 provided in an axial direction, and the locking surface 220 abuts against the locking portion 600.

The plurality of locking portions 600 are arranged in plural, and the plurality of locking portions 600 are uniformly arranged in the circumferential direction of the end portion of the pin shaft 100, and the locking surface 220 provided on the pin core 200 is disposed straight in the circumferential direction thereof. It is envisioned that when the link 330 rotates to a certain angle to reach the dead point position, the moment of the link 330 to the pin core 200 is zero, at this time, the abutment position of the locking portion 600 and the pin core 200 is just located on the locking surface 220, and when the locking portion 600 is located on the locking surface 220, the locking portion 600 is substantially perpendicular to the pin shaft 100. That is, the present application utilizes the dead point principle of the link 330 mechanism, so that erroneous unlocking is not easy to occur even when the fastening pin is subjected to a high load, and the reliability of the fastening pin is increased.

In a specific example, the adjusting portion 500 includes a distance adjusting nut 520 and a blocking disc 510, where the blocking disc 510 is disposed at an end of the distance adjusting nut 520 near the locking portion 600.

The baffle disc 510 is provided with a locking surface, and the diameter of the locking surface of the baffle disc 510 is larger than that of the adjusting nut, so that the baffle disc 510 is provided with a larger stress surface during re-locking, and the reliability and stability of the locking pin can be improved.

It can be appreciated that the distance adjusting nut 520 is disposed on the pin shaft 100 in a threaded connection manner, so that the applicability of the fastening pin is improved in a scene that the distance adjusting nut can be suitable for different thickness requirements.

In the above embodiment, when the above embodiment is performed, firstly, drilling is performed on two or more plate bodies to be fixed, then the present application is inserted into the drill hole, at this time, the core of the fastening pin is in the unlocking position, and the locking part 600 in the unlocking position is in a free state (not abutting against the pin core 200), so that it can be smoothly inserted into the drill hole, and when the pin rod 100 is inserted, it has a proper locking space by operating the adjusting part 500; then, the handle 400 is pushed or the pressing ring 320 is pulled, so that the pin core 200 moves along the through hole in the pin rod 100, and the movement of the pin core 200 drives the locking part to rotate and spread, and finally spreads to a position approximately perpendicular to the pin rod 100; at this time, the integral locking pin maintains a locking position under the action of the elastic member 340, thereby achieving stable locking of the fastening pin. When the locking pin is required to be detached, the handle 400 or the compression ring 320 is pulled to enable the pin core 200 to reversely move, so that the locking part 600 is separated from the pin core 200, the locking part is restored to a free state, and unlocking of the fastening pin is achieved.

During the actual unlocking operation, since the pin core 200 and the locking portion 600 are at the locking position, the connecting rod 330 is at the dead point position, and at this time, the handle 400 is difficult to be pulled due to the locking between the pin core 200 and the locking portion 600, the operation of the pulling ring 320 is fixedly selected to realize that the connecting rod 330 is separated from the dead point position, so that the quick and labor-saving unlocking operation is convenient to realize. It is contemplated that when the compression ring 320 is pulled, the link 330 may be moved out of the dead-center position by pulling in a direction opposite to the locking swing direction.

From the above description of the embodiments, it will be apparent to those skilled in the art that the actuating assembly 300 is provided in each embodiment, and that the quick locking and quick unlocking operations of the fastening pin can be achieved by the actuating assembly 300; further, the fastening pin has more force points and effective holding parts by arranging the compression ring 320 and the handle 400, so that the convenience of operation is improved, and the fastening pin can be rapidly operated even in environments with limited illumination such as mines, and the convenience and applicability are improved; further, both the locking and unlocking actions are achieved by means of the connection of the connecting rod 330, greatly increasing the reliability of the fastening pin. The handle 400 can conveniently and rapidly realize the locking operation of the quick assembly by utilizing the principle of the connecting rod 330 mechanism during the quick assembly; during quick disassembly, the clamping ring 320 is utilized to realize unlocking operation of the fastening pin. By utilizing the dead point principle of the connecting rod 330 mechanism, the fastening pin is not easy to unlock by mistake even if bearing higher load, and the reliability of the fastening pin is increased.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. A quick-release fastener pin, comprising: a pin rod, a pin core, and an actuation assembly;

the pin rod is provided with a perforation in the axial direction, one end of the pin rod is provided with an adjusting part, the other end of the pin rod is movably connected with a locking part, and the adjusting part can move along the axial direction of the pin rod so as to control the interval between the adjusting part and the locking part;

the pin core is connected in the through hole in a sliding way, one end of the pin core is in abutting fit with one end of the locking part, and the other end of the pin core is associated with the actuating assembly, so that the actuating assembly can drive the pin core to reciprocate in the through hole;

wherein, the movement of the pin core can drive the locking part to be unfolded to a locking position; or, the movement of the pin core causes the locking portion to be out of abutment with the pin core, thereby causing the locking portion to be in an unlocked position.

2. The quick release fastener of claim 1, wherein the actuating assembly comprises a base, a compression ring, and a linkage; the base is arranged at one end of the pin rod, which is far away from the locking part, the pressing ring is hinged with the base, and the connecting rod is arranged between the pressing ring and the pin core so as to convert the swinging motion of the pressing ring into the reciprocating motion of the pin core through the connecting rod;

the pressing ring is provided with an elastic piece, so that the pin core can keep the current locking position or unlocking position through the elastic piece.

3. The quick release fastener of claim 1 or 2, further comprising a handle connected to an end of the core distal from the locking portion.

4. The quick detachable fastening pin according to claim 2, wherein the locking portion comprises a locking post, one end of the locking post has an eccentric hinge hole, the eccentric hinge hole is hinged to the pin rod through a hinge shaft, and the other end of the locking post is freely protruded.

5. The quick release fastener of claim 4, wherein the locking post has an abutment surface that abuts the pin core, the abutment surface being configured in an arcuate configuration to enable the abutment surface to abut the pin core.

6. The quick release fastener of claim 2, wherein the pressure ring has a hinged end and a gripping end, the hinged end of the pressure ring being hinged to the base, the gripping end of the pressure ring extending freely along the outside of the base.

7. The quick assembly disassembly fastening pin of claim 2, further comprising a stop nut, wherein the base is rotatably coupled to the stop nut, and wherein the stop nut is threadably coupled to an end of the pin distal from the locking portion.

8. The quick release fastener of claim 1 or 5, wherein the end of the core that mates with the locking portion is in a tapered cylindrical configuration.

9. The quick release fastener of claim 8, wherein the pin core has an axially disposed locking surface thereon, the locking surface abutting the locking portion.

10. The quick detachable fastening pin according to claim 1, wherein the adjusting portion comprises a distance adjusting nut and a blocking disc, and the blocking disc is disposed at one end of the distance adjusting nut, which is close to the locking portion.