CN220622417U

CN220622417U - Guardrail bolt with locking function

Info

Publication number: CN220622417U
Application number: CN202322418849.8U
Authority: CN
Inventors: 王金利; 杨永山; 杨俊山; 周雄杰
Original assignee: Handan Yuanyi Fastener Co ltd
Current assignee: Handan Yuanyi Fastener Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-03-19
Anticipated expiration: 2033-09-06

Abstract

The utility model discloses a guardrail bolt with a locking function, which comprises a bolt and a nut in threaded connection with the outer wall of the bolt, wherein a limiting mechanism is arranged in the bolt, the upper end of the nut is connected with the locking mechanism, the locking mechanism comprises a mounting shell, a pushing shell and a group of spring pieces, and the limiting mechanism comprises a groove, a screw nut, a screw rod, a sliding block, a group of sliding grooves and a group of limiting blocks. The utility model has the beneficial effects that the locking mechanism is connected to the upper end of the nut, when the nut is screwed down, the spring pieces are pressed and deformed, then the spring pieces generate elastic force to reversely push the nut, so that the nut and the bolt are tightly matched, the locking purpose is achieved, the matched limiting mechanism adopts the limiting blocks to limit the screwed nut, the nut is prevented from rotating, and the connecting position of the guardrail fixed by the bolt is more stable.

Description

Guardrail bolt with locking function

Technical Field

The utility model relates to the technical field of fasteners, in particular to a guardrail bolt with a locking function.

Background

Fasteners are also known in the market as standard components and are a generic term for a type of mechanical component used when two or more parts (or members) are fastened together as a single piece.

Guardrail bolts are a type of fastener used to connect guardrail plates to guardrail posts. The existing guardrail bolts are common bolts, and have no anti-loosening performance, when a vehicle passes near the guardrail, vibration of the vehicle can be conducted to the guardrail, so that the bolts vibrate slightly, the bolts are loosened in the long term, and then the guardrail plates fall off, so that the use requirements cannot be met.

The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.

Disclosure of Invention

Aiming at the defects, the utility model provides a guardrail bolt with a locking function, so as to solve the locking problem of the guardrail bolt.

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

the guardrail bolt with the anti-loosening function comprises a bolt and a nut in threaded connection with the outer wall of the bolt, wherein a limiting mechanism is arranged in the bolt, and the upper end of the nut is connected with the anti-loosening mechanism;

the anti-loosening mechanism comprises a mounting shell, a pushing shell and a group of spring pieces, wherein the mounting shell is mounted at the upper end of the nut, the pushing shell is movably inserted in the center of the bottom of the mounting shell, the lower end of the pushing shell is in contact with the nut, the group of spring pieces are mounted in the mounting shell, and the bottom of the spring pieces is connected with the pushing shell.

Further, stop gear includes recess, screw, lead screw, sliding block, a set of spout and a set of limit piece, the recess is opened in the bolt bottom, screw movable mounting is in the recess, lead screw movable cartridge is in the screw, sliding block slidable mounting is in the recess upper end, and with lead screw front end swing joint, a set of spout slope is opened in sliding block upper surface both sides, a set of limit piece movable cartridge is in the bolt both sides, and with rear end slidable mounting on a set of spout.

Further, the rear end of the screw rod is provided with an inner hexagon head.

Further, the bottoms of the group of limiting blocks are respectively and slidably arranged on the group of sliding grooves through sliding blocks.

Further, a first round hole corresponding to the bolt is formed in the center of the pushing shell, and a second round hole corresponding to the bolt is formed in the center of the group of spring pieces.

Further, an annular groove corresponding to the group of limiting blocks is formed in the inner bottom of the nut.

The utility model provides a guardrail bolt with a locking function, which has the beneficial effects that a locking mechanism is connected to the upper end of a nut, when the nut is screwed down, a group of spring pieces receive pressure and deform and then generate elastic force to push the nut reversely, so that the nut and the bolt are tightly matched, the locking purpose is achieved, the screwed down nut can be limited by adopting a group of limiting blocks by matching with a limiting mechanism, the nut is prevented from rotating, and the connecting position of the guardrail fixed by the bolt is more stable.

Drawings

Fig. 1 is a schematic view of a guardrail bolt with a locking function.

Fig. 2 is a schematic view of a push shell according to the present utility model.

FIG. 3 is a schematic view of a spring plate according to the present utility model.

Fig. 4 is a cross-sectional view of a bolt according to the present utility model.

Fig. 5 is a schematic view of the limiting block according to the present utility model.

Fig. 6 is a cross-sectional view of a nut according to the present utility model.

In the figure: 1. a bolt; 2. a nut; 3. a mounting shell; 4. pushing the shell; 5. a spring piece; 6. a groove; 7. a nut; 8. a screw rod; 9. a sliding block; 10. a chute; 11. a limiting block; 12. an inner hexagon head; 13. a slide block; 14. a circular hole I; 15. a circular hole II; 16. an annular groove.

Detailed Description

The utility model is described in detail below with reference to the accompanying drawings, as shown in fig. 1-6: the guardrail bolt with the anti-loosening function comprises a bolt 1 and a nut 2 in threaded connection with the outer wall of the bolt 1, wherein a limiting mechanism is arranged in the bolt 1, and the upper end of the nut 2 is connected with the anti-loosening mechanism; the anti-loosening mechanism comprises a mounting shell 3, a pushing shell 4 and a group of spring pieces 5, wherein the mounting shell 3 is mounted at the upper end of the nut 2, the pushing shell 4 is movably inserted in the center of the bottom of the mounting shell 3, the lower end of the pushing shell is in contact with the nut 2, and the group of spring pieces 5 are mounted in the mounting shell 3, and the bottom of the spring pieces is connected with the pushing shell 4; the limiting mechanism comprises a groove 6, a screw 7, a screw rod 8, a sliding block 9, a group of sliding grooves 10 and a group of limiting blocks 11, wherein the groove 6 is formed in the inner bottom of the bolt 1, the screw rod 7 is movably installed in the groove 6, the screw rod 8 is movably inserted in the screw rod 7, the sliding block 9 is slidably installed at the inner upper end of the groove 6 and is movably connected with the front end of the screw rod 8, the group of sliding grooves 10 are obliquely formed on two sides of the upper surface of the sliding block 9, the group of limiting blocks 11 are movably inserted on two sides of the bolt 1 and are slidably installed on the group of sliding grooves 10 with the rear end; an inner hexagon head 12 is arranged at the rear end of the screw rod 8; the bottoms of the group of limiting blocks 11 are respectively and slidably arranged on the group of sliding grooves 10 through sliding blocks 13; the center of the pushing shell 4 is provided with a first round hole 14 corresponding to the bolt 1, and the center of the group of spring pieces 5 is provided with a second round hole 15 corresponding to the bolt 1; an annular groove 16 corresponding to the group of limiting blocks 11 is formed in the inner bottom of the nut 2.

The working principle of the embodiment is as follows: when in installation, a user firstly passes the bolt 1 through the fixing hole on the guardrail plate;

when loose prevention: the installation shell 3 is installed at the upper end of the nut 2, the pushing shell 4 is movably inserted in the center of the bottom of the installation shell 3, the lower end of the pushing shell is in contact with the nut 2, a group of spring pieces 5 are installed in the installation shell 3, the bottom of the pushing shell is connected with the pushing shell 4, a circular hole I14 corresponding to the bolt 1 is formed in the center of the pushing shell 4, a circular hole II 15 corresponding to the bolt 1 is formed in the center of the group of spring pieces 5, as shown in fig. 1-3, a user firstly installs the installation shell 3 on the bolt 1 in a sleeved mode, enables the upper end of the group of spring pieces 5 to be in contact with a guardrail plate, then hangs the nut 2, when the nut 2 is screwed, the pushing shell 4 pushes the group of spring pieces 5, the group of spring pieces 5 receives pressure and deforms (inwards sunken) and generates elasticity, and the nut 2 is reversely pushed, so that the nut 2 and the bolt 1 and the nut 1 are tightly matched are prevented;

limiting: the groove 6 is formed in the inner bottom of the bolt 1, the screw 7 is movably mounted in the groove 6 through a bearing, the screw rod 8 is movably inserted in the screw 7, the sliding block 9 is slidably mounted at the upper end in the groove 6 and is movably connected with the front end of the screw rod 8, a group of sliding grooves 10 are obliquely formed in two sides of the upper surface of the sliding block 9, a group of limiting blocks 11 are movably inserted in two sides of the bolt 1 and are slidably mounted on a group of sliding grooves 10 with the rear end, an inner hexagon head 12 is mounted at the rear end of the screw rod 8, the bottoms of the group of limiting blocks 11 are slidably mounted on a group of sliding grooves 10 through sliding blocks 13 respectively, annular grooves 16 corresponding to the group of limiting blocks 11 are formed in the bottom of the nut 2, at the moment, after the nut 2 is screwed down, the group of limiting blocks 11 correspond to the annular grooves 16 in the nut 2, a group of limiting blocks 11 are screwed down through a hexagonal wrench clockwise, the sliding block 9 is driven to slide the sliding block 9 to slide up, and meanwhile, the group of limiting blocks 11 are driven into the annular grooves 16 of the nut 2 to limit the screwed nut 2, and the nut 2 is prevented from rotating, so that the position of the bolt is fixed, and the bolt is more stable, and the bolt is fixed.

The above technical solution only represents the preferred technical solution of the present utility model, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present utility model, and the technical solution falls within the scope of the present utility model.

Claims

1. The guardrail bolt with the anti-loosening function comprises a bolt (1) and a nut (2) in threaded connection with the outer wall of the bolt (1), and is characterized in that a limiting mechanism is arranged in the bolt (1), and the upper end of the nut (2) is connected with the anti-loosening mechanism;

the anti-loosening mechanism comprises a mounting shell (3), a pushing shell (4) and a group of spring pieces (5), wherein the mounting shell (3) is mounted at the upper end of the nut (2), the pushing shell (4) is movably inserted in the center of the bottom of the mounting shell (3), the lower end of the pushing shell is in contact with the nut (2), the group of spring pieces (5) are mounted in the mounting shell (3), and the bottom of the spring pieces is connected with the pushing shell (4).

2. The guardrail bolt with anti-loosening function according to claim 1, wherein the limiting mechanism comprises a groove (6), a screw (7), a screw rod (8), a sliding block (9), a group of sliding grooves (10) and a group of limiting blocks (11), the groove (6) is formed in the inner bottom of the bolt (1), the screw rod (7) is movably mounted in the groove (6), the screw rod (8) is movably mounted in the screw rod (7), the sliding block (9) is slidably mounted at the inner upper end of the groove (6) and is movably connected with the front end of the screw rod (8), the sliding grooves (10) are obliquely formed on two sides of the upper surface of the sliding block (9), the group of limiting blocks (11) are movably mounted on two sides of the bolt (1) and are slidably mounted on the group of sliding grooves (10) with the rear end.

3. A guardrail bolt with anti-loosening function according to claim 2, characterized in that the rear end of the screw rod (8) is provided with an inner hexagon head (12).

4. A guardrail bolt with anti-loosening function according to claim 2, characterized in that the bottoms of a set of limiting blocks (11) are respectively slidably mounted on a set of sliding grooves (10) through sliding blocks (13).

5. The guardrail bolt with the anti-loosening function according to claim 1, wherein a circular hole I (14) corresponding to the bolt (1) is formed in the center of the pushing shell (4), and a circular hole II (15) corresponding to the bolt (1) is formed in the center of the group of spring pieces (5).

6. A guardrail bolt with anti-loosening function according to claim 1, characterized in that the inner bottom of the nut (2) is provided with an annular groove (16) corresponding to a set of limiting blocks (11).