CN215521541U

CN215521541U - Anti-sticking knock pin

Info

Publication number: CN215521541U
Application number: CN202121877332.XU
Authority: CN
Inventors: 刘胜; 谢志力; 张永富; 谌国梁
Original assignee: Foshan Shunde East Asia Auto Parts Co ltd
Current assignee: Foshan Shunde East Asia Auto Parts Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-01-14
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses an anti-blocking ejector pin which comprises a base, wherein a shell is installed on the outer wall of the top of the base through a bolt, a first pin shaft is movably inserted in the shell, a second pin shaft is movably inserted in the first pin shaft, a third pin shaft is movably inserted in the second pin shaft, a fourth pin shaft is slidably inserted in the third pin shaft, a pin head is inserted at the top end of the fourth pin shaft, movable grooves are formed in the outer walls of the two sides of the fourth pin shaft, movable blocks are slidably connected in the movable grooves, and an inserting rod is welded on the outer wall of one side of each movable block. The ejector pin is provided with four pin shafts, so that the length of the whole ejector pin can be longer, further, the pins in pin holes with different lengths can be ejected out, when the four pin shafts are contracted, the length of the ejector pin is integrally shortened, and the ejector pin is convenient to store and store.

Description

Anti-sticking knock pin

Technical Field

The utility model relates to the technical field of ejector pins, in particular to an anti-jamming ejector pin.

Background

The ejector pin is an appliance for ejecting the bolt from the inside of the pin hole, and the ejector pin can be used for dismounting the bolt of the interference fit parts due to the fact that the ejector pin usually encounters the interference fit parts with different sizes in the field of electromechanical installation.

The existing anti-blocking ejector pin cannot detach and replace a pin head according to the diameter of a pin hole, so that the pin hole and the pin shaft which are only single in diameter can be detached and used, the using range is narrow, only one section of pin shaft is arranged, the length of the whole ejector pin is short, and a long pin hole cannot be ejected out, so that the anti-blocking ejector pin is urgently needed to be designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that a pin head cannot be detached and replaced according to the diameter of a pin hole, the length of the whole ejector pin is short, and a plug pin in the long pin hole cannot be ejected in the prior art, and provides an anti-jamming ejector pin.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides an anti-sticking knock pin, includes the base, install the shell through the bolt on the outer wall at base top, and the inside activity of shell is pegged graft and is had first round pin axle, the inside activity of first round pin axle is pegged graft and is had second round pin axle, the inside activity of second round pin axle is pegged graft and is had third round pin axle, and the inside slip of third round pin axle is pegged graft and has fourth round pin axle, the top of fourth round pin axle is pegged graft and is had the round pin head, the movable groove has been seted up on the outer wall of fourth round pin axle both sides, and the inside sliding connection of movable groove has the movable block, the welding has the inserted bar on the outer wall of movable block one side, and has all seted up the slot on the outer wall of round pin head both sides, the inserted bar is pegged graft in the inside of slot, the welding has the pull rod on the outer wall of movable block one side, and has the welding to cup jointed the joint spring in the pull rod outside on the outer wall of movable block one side.

Further, install the motor through the bolt on the outer wall at base top, and install the axostylus axostyle through the bolt on the output of motor, the welding has the thread bush that is equidistant structure and distributes on the outer wall of axostylus axostyle.

Furthermore, thread grooves are formed in the first pin shaft, the second pin shaft, the third pin shaft and the fourth pin shaft, and the thread sleeves are connected to the inner portions of the thread grooves in a threaded mode.

Furthermore, a first spring is welded on the inner wall of the bottom of the first pin shaft, and the top end of the first spring is welded on the outer wall of the bottom of the second pin shaft.

Furthermore, a second spring is welded on the inner wall of the bottom of the second pin shaft, and the top end of the second spring is welded on the outer wall of the bottom of the third pin shaft.

Furthermore, a third spring is welded on the inner wall of the bottom of the third pin shaft, and the top end of the third spring is welded on the outer wall of the bottom of the fourth pin shaft.

Furthermore, the inner walls of the two sides of the base, the first pin shaft, the second pin shaft and the third pin shaft are provided with limiting grooves, the bottoms of the outer walls of the two sides of the first pin shaft, the second pin shaft, the third pin shaft and the fourth pin shaft are welded with limiting blocks, and the limiting blocks are connected inside the limiting grooves in a sliding mode.

The utility model has the beneficial effects that:

1. through the fourth round pin axle, round pin head, activity groove, movable block, inserted bar, slot, pull rod and the joint spring that sets up, the inside of slot is kept away from to the inserted bar during pulling the pull rod, is convenient for dismantle the change to the round pin head, and the scope of use is more extensive.

2. Through the first round pin axle, second round pin axle, third round pin axle and the fourth round pin axle that sets up, this knock pin has four round pin axles, can make the length of whole knock pin longer, and then can be ejecting to the inside bolt of pinhole of different length, when contracting four round pin axles, has wholly shortened the length of knock pin, is convenient for accomodate and store, and in the sunken department of the round pin axle between two round pin axles, can dropwise add lubricating oil, can prevent the phenomenon that the card pauses from appearing between each round pin axle.

3. Through motor, axostylus axostyle, thread bush, spacing groove and the stopper that sets up, the motor drives axostylus axostyle and thread bush and rotates, and during thread bush and thread groove screw thread, can make a plurality of round pin axles flexible simultaneously, the stopper can make round pin axle vertical migration simultaneously, avoids round pin axle to follow the rotation of thread bush and pivoted phenomenon.

Drawings

Fig. 1 is a schematic perspective view of an anti-jamming pin according to the present invention;

fig. 2 is a schematic diagram of a pin shaft ejection structure of an anti-jamming ejector pin according to the present invention;

FIG. 3 is a schematic view of an internal structure of an anti-jamming pin according to the present invention;

FIG. 4 is a schematic view of a pin head fixing structure of an anti-jamming pin according to the present invention;

fig. 5 is a schematic view of a detailed structure of an anti-jamming pin according to the present invention.

In the figure: the spring comprises a base 1, a shell 2, a first pin shaft 3, a second pin shaft 4, a third pin shaft 5, a fourth pin shaft 6, a pin head 7, a movable groove 8, a movable block 9, an inserted rod 10, an inserted slot 11, a pull rod 12, a clamping spring 13, a threaded groove 14, a limiting groove 15, a limiting block 16, a first spring 17, a motor 18, a shaft rod 19, a threaded sleeve 20, a second spring 21 and a third spring 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, an anti-jamming pin comprises a base 1, a housing 2 is mounted on an outer wall of the top of the base 1 through bolts, a first pin shaft 3 is movably inserted into the housing 2, a second pin shaft 4 is movably inserted into the first pin shaft 3, a third pin shaft 5 is movably inserted into the second pin shaft 4, a fourth pin shaft 6 is slidably inserted into the third pin shaft 5, a pin head 7 is inserted into the top end of the fourth pin shaft 6, movable grooves 8 are formed in outer walls of two sides of the fourth pin shaft 6, a movable block 9 is slidably connected into the movable grooves 8, an insertion rod 10 is welded on an outer wall of one side of the movable block 9, insertion grooves 11 are formed in outer walls of two sides of the pin head 7, the insertion rod 10 is inserted into the insertion grooves 11, a pull rod 12 is welded on an outer wall of one side of the movable block 9, and a jamming spring 13 sleeved outside the pull rod 12 is welded on an outer wall of one side of the movable block 9, when the pulling pull rod 12 drives the inserted link 10 to be far away from the slot 11, the pin head 7 is convenient to disassemble, different pin heads 7 can be installed according to the pin hole diameters of the pins to be ejected, and the application range is wider.

Further, install motor 18 through the bolt on the outer wall at base 1 top, and install axostylus axostyle 19 through the bolt on motor 18's the output, the welding has the thread bush 20 that is equidistant structure and distributes on axostylus axostyle 19's the outer wall, and motor 18's model is 68KTY2, and motor 18 can drive axostylus axostyle 19 and thread bush 20 and rotate, and thread bush 20 and thread groove 14 screw thread can make each round pin axle go up and down.

Further, thread groove 14 has all been seted up to first round pin axle 3, second round pin axle 4 and the inside of third round pin axle 5 and fourth round pin axle 6, and threaded sleeve 20 threaded connection is in thread groove 14's inside, can make first round pin axle 3 go up and down in the inside of shell 2, second round pin axle 4 goes up and down in the inside of first round pin axle 3, third round pin axle 5 goes up and down in the inside of second round pin axle 4, fourth round pin axle 6 goes up and down in the inside of third round pin axle 5, can increase the length of whole knock pin.

Furthermore, the inner wall of the bottom of the first pin shaft 3 is welded with the first spring 17, the top end of the first spring 17 is welded on the outer wall of the bottom of the second pin shaft 4, and the first spring 17 can play a certain buffering force for the second pin shaft 4 and can play a role in buffering and protecting the second pin shaft 4.

Furthermore, the inner wall of the bottom of the second pin shaft 4 is welded with a second spring 21, the top end of the second spring 21 is welded on the outer wall of the bottom of the third pin shaft 5, and the second spring 21 can buffer the third pin shaft 5 and can buffer and protect the third pin shaft 5.

Furthermore, the inner wall of the bottom of the third pin shaft 5 is welded with a third spring 22, the top end of the third spring 22 is welded on the outer wall of the bottom of the fourth pin shaft 6, the elastic extension force of the third spring 22 can buffer the fourth pin shaft 6, and the bottom of the fourth pin shaft 6 is protected when descending.

Further, the inner walls of the two sides of the base 1, the first pin shaft 3, the second pin shaft 4 and the third pin shaft 5 are provided with limiting grooves 15, the bottoms of the outer walls of the two sides of the first pin shaft 3, the second pin shaft 4, the third pin shaft 5 and the fourth pin shaft 6 are welded with limiting blocks 16, the limiting blocks 16 are connected inside the limiting grooves 15 in a sliding mode, the limiting blocks 16 can enable the first pin shaft 3, the second pin shaft 4, the third pin shaft 5 and the fourth pin shaft 6 to vertically lift, and stability is improved.

The working principle is as follows: when the anti-blocking ejector pin is used, the corresponding pin head 7 is selected according to the diameter of a mechanical pin hole, the pull rod 12 is pulled, the pin head 7 is inserted into the fourth pin head 6, the pull rod 12 is loosened, the clamping spring 13 is not stretched by tensile force at the moment, so that the insertion rod 10 can be driven to be inserted into the slot 11, the pin head 7 can be fixed, different pin heads 7 can be conveniently replaced by the structure, the use range is wider, then the motor 18 is started to drive the shaft rod 19 and the threaded sleeve 20 to rotate, the threaded sleeve 20 is threaded with the threaded groove 14, the first pin shaft 3 is lifted in the shell 2, the second pin shaft 4 is lifted in the first pin shaft 3, the third pin shaft 5 is lifted in the second pin shaft 4, the fourth pin shaft 6 is lifted in the third pin shaft 5, the limiting block 16 slides in the limiting groove 14 at the moment, and four pin shafts can be lifted simultaneously, can the ejecting dismantlement of the inside bolt of machinery pinhole, and a plurality of round pin axles, the length that can make whole knock pin is longer, can be ejecting with the inside bolt of different length pinholes, when not using the knock pin, can be with the inside of the 6 indentation third round pin axles 5 of fourth round pin axle, the inside of the 5 indentation second round pin axles 4 of third round pin axle, the inside of the 4 indentation first round pin axles 3 of second round pin axle, be convenient for receive and release the knock pin, at the sunken department dropwise add lubricating oil of two round pin axles, can increase the lubrication degree between each round pin axle, can avoid appearing the phenomenon that the card pauses.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. An anti-blocking ejector pin comprises a base (1) and is characterized in that a shell (2) is installed on the outer wall of the top of the base (1) through bolts, a first pin shaft (3) is movably inserted in the shell (2), a second pin shaft (4) is movably inserted in the first pin shaft (3), a third pin shaft (5) is movably inserted in the second pin shaft (4), a fourth pin shaft (6) is slidably inserted in the third pin shaft (5), a pin head (7) is inserted in the top end of the fourth pin shaft (6), movable grooves (8) are formed in the outer walls of the two sides of the fourth pin shaft (6), movable blocks (9) are slidably connected in the inner parts of the movable grooves (8), an insertion rod (10) is welded on the outer wall of one side of each movable block (9), and slots (11) are formed in the outer walls of the two sides of each pin head (7), the inserting rod (10) is inserted in the inserting groove (11), the pull rod (12) is welded on the outer wall of one side of the movable block (9), and the clamping spring (13) sleeved outside the pull rod (12) is welded on the outer wall of one side of the movable block (9).

2. The anti-jamming top pin according to claim 1 is characterized in that a motor (18) is mounted on the outer wall of the top of the base (1) through a bolt, a shaft rod (19) is mounted on the output end of the motor (18) through a bolt, and threaded sleeves (20) distributed in an equidistant structure are welded on the outer wall of the shaft rod (19).

3. The anti-jamming top pin according to claim 1, characterized in that the first pin shaft (3), the second pin shaft (4), the third pin shaft (5) and the fourth pin shaft (6) are all provided with a thread groove (14) inside, and the thread bushing (20) is in threaded connection with the inside of the thread groove (14).

4. The anti-jamming top pin according to claim 1, characterized in that the first spring (17) is welded on the inner wall of the bottom of the first pin (3), and the top end of the first spring (17) is welded on the outer wall of the bottom of the second pin (4).

5. The anti-jamming top pin according to claim 1, characterized in that the second spring (21) is welded on the inner wall of the bottom of the second pin (4), and the top end of the second spring (21) is welded on the outer wall of the bottom of the third pin (5).

6. The anti-jamming top pin according to claim 1, characterized in that the third spring (22) is welded on the inner wall of the bottom of the third pin (5), and the top end of the third spring (22) is welded on the outer wall of the bottom of the fourth pin (6).

7. The anti-jamming jacking pin according to claim 1, wherein the inner walls of two sides of the base (1), the first pin shaft (3), the second pin shaft (4) and the third pin shaft (5) are respectively provided with a limiting groove (15), the bottoms of the outer walls of two sides of the first pin shaft (3), the second pin shaft (4), the third pin shaft (5) and the fourth pin shaft (6) are respectively welded with a limiting block (16), and the limiting blocks (16) are slidably connected inside the limiting grooves (15).