CN215928091U

CN215928091U - High-torsion mechanical impact-resistant fastener structure

Info

Publication number: CN215928091U
Application number: CN202121984659.7U
Authority: CN
Inventors: 余真宝; 蒋如宝
Original assignee: Suzhou Fenghao Electromechanical Co ltd
Current assignee: Suzhou Fenghao Electromechanical Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-01
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a high-torsion mechanical impact-resistant fastener structure which comprises a top plate, wherein a screw rod is fixedly connected to the center of the lower surface of the top plate, a nut connected through threads is sleeved on the outer surface of the screw rod, a circular groove is formed in the upper surface of the top plate, a through hole is formed in the screw rod, and the top end of the through hole is communicated with the inside of the circular groove. According to the utility model, the rotary table enters the circular groove at the top of the top plate under the action of the second spring in the telescopic rod, the clamping rod of the clamping mechanism on the rotary table can be clamped into the corresponding clamping groove, at the moment, the clamping rod keeps an inclined state and is matched with the corresponding clamping groove under the action of the first spring, so that a self-locking structure is formed, the rotary table cannot rotate reversely, and further the nut cannot loosen due to vibration.

Description

High-torsion mechanical impact-resistant fastener structure

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a high-torsion mechanical impact-resistant fastener structure.

Background

Fasteners are a very widely used class of mechanical parts for fastening connections. A wide variety of fasteners are found on a variety of machines, equipment, vehicles, boats, railways, bridges, buildings, structures, tools, instruments, meters, supplies, and the like. The device is characterized by various varieties and specifications, different performance and purposes, extremely high standardization, serialization and universalization degrees, and often needing to use fasteners to fix objects in the field of agricultural machinery;

the prior fastener for agricultural machinery often causes the fastener to loosen due to the vibration of machinery when in use, thereby causing the fixing failure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that fasteners used for agricultural machinery are loosened due to mechanical vibration frequently when the fasteners are used in the prior art, and provides a high-torsion mechanical impact-resistant fastener structure.

In order to achieve the purpose, the utility model adopts the following technical scheme: a high-torsion mechanical impact-resistant fastener structure comprises a top plate, wherein a screw rod is fixedly connected to the central position of the lower surface of the top plate, a nut connected through threads is sleeved on the outer surface of the screw rod, a circular groove is formed in the upper surface of the top plate, a through hole is formed in the screw rod, the top end of the through hole is communicated with the inside of the circular groove, a telescopic rod is rotatably connected to the inside of the through hole in a penetrating manner, a rotary disc is fixedly connected to the top end of the telescopic rod, a buckling mechanism is mounted on the upper surface of the rotary disc, a plurality of clamping grooves corresponding to the buckling mechanism are formed in the circumferential direction of the inner wall of the circular groove, guide rods are symmetrically connected to the two sides of the nut in a penetrating and sliding manner, the same fixing plate is fixedly connected between the bottom ends of the two guide rods, an inserting plate is fixedly connected to the bottom end of the telescopic rod, and the bottom end of the inserting plate penetrates through the fixing plate and extends to the lower side of the fixing plate, and the outer surface of one end of the inserting plate, which is positioned below the fixing plate, is connected with a cotter pin in a penetrating way;

the buckle mechanism includes kelly, first spring and fixed block, the one end of kelly is connected with the last surface rotation of carousel, in the draw-in groove was gone into to the one end slope card of kelly, the upper surface at the carousel is fixed to the fixed block, the both ends of first spring are connected with the external fixed surface of kelly and fixed block respectively.

Further, the telescopic link includes first bracing piece, sliding connection is run through to the inside of first bracing piece has the second bracing piece, the inside top fixedly connected with second spring of first bracing piece, the bottom of second spring and the top fixed connection of second bracing piece.

Furthermore, counter bores have been seted up to the upper surface bilateral symmetry of nut, just the top of guide bar extends to the inside and the fixedly connected with stopper in counter bore.

Furthermore, the height of the limiting block is smaller than the depth of the counter bore.

Furthermore, the outer surface of the fixing plate is provided with a socket corresponding to the plug board.

Further, the top plate is in the shape of a regular hexagon.

Furthermore, a pulling plate is fixedly connected to the center of the upper surface of the rotating disc.

The utility model has the beneficial effects that:

when the high-torsion mechanical impact-resistant fastener structure is used, the rotary table enters the circular groove in the top of the top plate under the action of the second spring in the telescopic rod, the clamping rod of the clamping mechanism on the rotary table is clamped into the corresponding clamping groove, and the clamping rod keeps an inclined state and is matched with the corresponding clamping groove under the action of the first spring, so that a self-locking structure is formed, the rotary table cannot rotate reversely, and the nut cannot loosen due to vibration.

When the high-torque mechanical impact-resistant fastener structure is used, the fastener is convenient to fix, disassemble and separate replacement and maintenance through the detachable turntable and the buckle mechanism, and great convenience is brought to users.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top view of the top plate of the present invention;

fig. 3 is a schematic view of the internal structure of the telescopic rod of the present invention.

Illustration of the drawings:

1. a top plate; 2. a screw; 3. a nut; 4. a circular groove; 5. a through hole; 6. a telescopic rod; 7. a turntable; 8. a card slot; 9. a guide bar; 10. a fixing plate; 11. inserting plates; 12. a cotter pin; 13. a clamping rod; 14. a first spring; 15. a fixed block; 16. a first support bar; 17. a second support bar; 18. a second spring; 19. a countersunk hole; 20. a limiting block; 21. a socket; 22. and (5) pulling the plate.

Detailed Description

Referring to fig. 1, a high-torque mechanical impact-resistant fastener structure is provided, which includes a top plate 1, the top plate 1 is regular hexagon, the hexagonal shape is convenient for rotating the top plate 1, a screw rod 2 is fixedly connected to the center position of the lower surface of the top plate 1, a nut 3 connected by a thread is sleeved on the outer surface of the screw rod 2, a circular groove 4 is formed on the upper surface of the top plate 1, a through hole 5 is formed inside the screw rod 2, the top end of the through hole 5 is communicated with the inside of the circular groove 4, an expansion link 6 is connected to the inside of the through hole 5 in a penetrating and rotating manner, a rotary table 7 is fixedly connected to the top end of the expansion link 6, a buckle mechanism is installed on the upper surface of the rotary table 7, a plurality of clamping grooves 8 corresponding to the buckle mechanism are formed in the circumferential direction of the inner wall of the circular groove 4, guide rods 9 are connected to the two sides of the nut 3 in a penetrating and sliding manner, countersunk holes 19 are symmetrically formed in the two sides of the upper surface of the nut 3, and the top end of the guide rods 9 extends to the inside of the countersunk holes 19 and is fixedly connected with a stopper 20, the falling of the guide rods 9 can be avoided through the arranged limiting blocks 20, the height of each limiting block 20 is smaller than the depth of each counter sink 19 so that the limiting blocks 20 can fully enter the counter sinks 19, the surface smoothness of the nut 3 is guaranteed, the same fixing plate 10 is fixedly connected between the bottom ends of the two guide rods 9, the bottom end of each telescopic rod 6 is fixedly connected with an inserting plate 11, the bottom end of each inserting plate 11 penetrates through the fixing plate 10 and extends to the lower portion of the fixing plate 10, the outer surface of each fixing plate 10 is provided with an inserting opening 21 corresponding to the inserting plate 11, the inserting plate 11 is convenient to insert through the arranged inserting opening 21, and the outer surface of one end, located below the fixing plate 10, of the inserting plate 11 is connected with an opening pin 12 in a penetrating mode;

referring to fig. 2, buckle mechanism includes kelly 13, first spring 14 and fixed block 15, the one end of kelly 13 is connected with the upper surface rotation of carousel 7, the one end slope card of kelly 13 is gone into in draw-in groove 8, fixed block 15 is fixed at the upper surface of carousel 7, the both ends of first spring 14 respectively with kelly 13 and fixed block 15's fixed surface connection, the upper surface central point of carousel 7 puts fixedly connected with arm-tie 22, be convenient for spur carousel 7 through the arm-tie 22 that sets up, thereby be convenient for take out buckle mechanism.

Referring to fig. 3, the telescopic rod 6 includes a first supporting rod 16, a second supporting rod 17 is slidably connected inside the first supporting rod 16, a second spring 18 is fixedly connected to the top of the first supporting rod 16, and the bottom end of the second spring 18 is fixedly connected to the top end of the second supporting rod 17.

When the high-torque mechanical impact-resistant fastener structure is used, the nut 3 is sleeved on the screw rod 2 through threads, the telescopic rod 6 at the bottom end of the rotary table 7 penetrates through the through hole 5, the inserting plate 11 is inserted into the inserting hole 21, the cotter pin 12 penetrates through the bottom end of the inserting plate 11, the rotary table 7 enters the circular groove 4 at the top of the top plate 1 under the action of the second spring 18 in the telescopic rod 6, the clamping rod 13 of the clamping mechanism on the rotary table 7 can be clamped into the corresponding clamping groove 8, the nut 3 is further rotated continuously, the top plate 1 and the nut 3 fix the agricultural machine, when the agricultural machine vibrates, the clamping rod 13 keeps an inclined state and is matched with the corresponding clamping groove 8 under the action of the first spring 14, so that a self-locking structure is formed, the rotary table 7 cannot rotate reversely, and the nut 3 cannot rotate reversely through the matching of the telescopic rod 6, the inserting plate 11, the fixing plate 10 and the guide rod 9, thereby make the fastener can not become flexible because of vibrations, only need take off the split pin 12 of bottom when needs dismantle the fastener, and then pulling arm-tie 22 can take off carousel 7 from circular slot 4, and then make nut 3 lose the constraint, can reverse rotation nut 3 take off nut 3, and then realize the dismantlement of fastener, easy operation.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A high-torque mechanical impact-resistant fastener structure, comprising a top plate (1), characterized in that: the lower surface center position of the top plate (1) is fixedly connected with a screw rod (2), the outer surface sleeve of the screw rod (2) is provided with a nut (3) which is connected through threads, the upper surface of the top plate (1) is provided with a circular groove (4), the inside of the screw rod (2) is provided with a through hole (5), the top end of the through hole (5) is communicated with the inside of the circular groove (4), the inside of the through hole (5) is connected with a telescopic rod (6) in a penetrating and rotating manner, the top end of the telescopic rod (6) is fixedly connected with a turntable (7), the upper surface of the turntable (7) is provided with a buckle mechanism, the inner wall circumferential direction of the circular groove (4) is provided with a plurality of clamping grooves (8) corresponding to the buckle mechanism, two sides of the nut (3) are symmetrically connected with guide rods (9) in a penetrating and sliding manner, and the bottom ends of the two guide rods (9) are fixedly connected with the same fixing plate (10), the bottom end of the telescopic rod (6) is fixedly connected with an inserting plate (11), the bottom end of the inserting plate (11) penetrates through the fixing plate (10) and extends to the position below the fixing plate (10), and the outer surface of one end, located below the fixing plate (10), of the inserting plate (11) is connected with a cotter pin (12) in a penetrating mode;

buckle mechanism includes kelly (13), first spring (14) and fixed block (15), the one end of kelly (13) is connected with the upper surface rotation of carousel (7), the one end slope card of kelly (13) is gone into in draw-in groove (8), the upper surface at carousel (7) is fixed in fixed block (15), the both ends of first spring (14) are connected with the external fixed surface of kelly (13) and fixed block (15) respectively.

2. A high torque mechanical impact resistant fastener structure as claimed in claim 1, wherein: telescopic link (6) are including first bracing piece (16), sliding connection is run through to the inside of first bracing piece (16) has second bracing piece (17), the inside top fixedly connected with second spring (18) of first bracing piece (16), the bottom of second spring (18) and the top fixed connection of second bracing piece (17), just first bracing piece (16) and second bracing piece (17) can not the rotation each other.

3. A high torque mechanical impact resistant fastener structure as claimed in claim 1, wherein: counter bores (19) have been seted up to the upper surface bilateral symmetry of nut (3), just the top of guide bar (9) extends to the inside and fixedly connected with stopper (20) of counter bores (19).

4. A high torque mechanical impact resistant fastener structure as claimed in claim 3, wherein: the height of the limiting block (20) is smaller than the depth of the counter sink (19).

5. A high torque mechanical impact resistant fastener structure as claimed in claim 1, wherein: the outer surface of the fixing plate (10) is provided with a socket (21) corresponding to the inserting plate (11).

6. A high torque mechanical impact resistant fastener structure as claimed in claim 1, wherein: the top plate (1) is in a regular hexagon shape.

7. A high torque mechanical impact resistant fastener structure as claimed in claim 1, wherein: the center of the upper surface of the turntable (7) is fixedly connected with a pulling plate (22).