Fastener provided with limiting structure and used for installing automobile parts

Abstract

The utility model discloses an automobile part mounting fastener with a limiting structure, which belongs to the technical field of fasteners and comprises a bolt, a nut screwed on the bolt, a limiting shell sleeved on the bolt, a connecting plate fixedly mounted in the limiting shell and an inserting cylinder fixedly mounted on the connecting plate. The inner wall of the inserting barrel is attached to the side surface of the bolt, one side of the connecting plate is attached to one side of the nut, a through groove is formed in the inserting barrel, a clamping block is slidably connected into the through groove, a telescopic rod is fixedly connected to one side of the clamping block, and the end, away from the clamping block, of the telescopic rod is fixedly connected to the inner wall of one side of the limiting shell. Through cooperative use of the devices, the limiting shell, the connecting plate, the inserting cylinder and other parts are fixed to the side surface of the bolt, the connecting plate can also firmly abut against the nut, and therefore the nut is limited, and the situation that the nut loosens on the bolt due to external vibration is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener with a limiting structure for installing automobile parts. Background Art

[0002] Fasteners are a general term for a type of mechanical parts used to fasten two or more parts together to form a whole. They are a type of mechanical parts used for fastening and are extremely widely used in vehicles, construction machinery, agricultural machinery, manufacturing machinery, etc.

[0003] In the prior art, bolts are usually passed through the fixing holes of the two parts to be fixed, and then nuts are screwed on the bolt posts to tighten them. However, when a car is driving on a bumpy road, vibrations will be generated, and the fasteners may become loose in a vibrating working environment for a long time, resulting in insufficient tightness in the connection of automobile parts and causing the connectors to fall off, posing a safety hazard during the driving of the car.

[0004] Therefore, the present invention provides a fastener for installing automobile parts with a limiting structure to solve the above problems. Utility Model Content

[0005] (1) Technical problems solved

[0006] The utility model provides a fastener for installing automobile parts with a limiting structure, aiming to solve the problems raised in the background technology.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fastener for installing automobile parts with a limiting structure, the fastener comprising a bolt, a nut threaded on the bolt, a limiting shell sleeved on the bolt, a connecting plate fixedly installed inside the limiting shell, and an insert tube fixedly installed on the connecting plate, the inner wall of the insert tube fits with the side surface of the bolt, one side of the connecting plate fits with one side of the nut, a through groove is provided on the insert tube, a card block is slidably connected to the inside of the through groove, a telescopic rod is fixedly connected to one side of the card block, and an end of the telescopic rod away from the card block is fixedly connected to the inner wall of one side of the limiting shell.

[0009] As a preferred technical solution of the present application, a first spring is sleeved on the side surface of the telescopic rod, one end of the first spring is fixedly connected to the inner wall of one side of the limit shell, and the other end of the first spring is fixedly connected to one side of the blocking block.

[0010] As a preferred technical solution of the present application, a pressure block is sleeved on the side surface of the insert, one side of the pressure block is fixedly connected to a connecting strip, one side of the clamping block is fixedly connected to a traction block, and the side surface of the traction block slides against the side surface of the connecting strip.

[0011] As a preferred technical solution of the present application, the interior of the limit shell is fixedly connected to a limit ring, the inner wall of the limit ring slides in contact with the side surface of the pressure block, a reset pressure plate is sleeved on the side surface of the insert, and the end of the connecting strip away from the pressure block is fixedly connected to one side of the reset pressure plate.

[0012] As a preferred technical solution of the present application, a second spring is sleeved on the side surface of the insert, one end of the second spring is fixedly connected to the side of the connecting plate away from the nut, and the other end of the second spring is fixedly connected to the side of the reset pressure plate away from the connecting strip.

[0013] As a preferred technical solution of the present application, a first gasket and a second gasket are respectively provided on the side surfaces of the bolt, one side of the first gasket fits with one end of the bolt, and one side of the second gasket fits with the side of the nut away from the connecting plate.

[0014] (3) Beneficial effects

[0015] The utility model has a simple structure and is easy to use. Through the arrangement of the clamping block, the telescopic rod, the first spring and the through groove, the limit shell, the connecting plate, the insert cylinder and other parts are fixed on the side surface of the bolt. The connecting plate can also firmly support the nut, thereby limiting the nut and reducing the loosening of the nut on the bolt due to external vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a fastener for installing automobile parts with a limiting structure;

[0017] Figure 2 This is a schematic diagram of the installation of a second gasket in a fastener for installing an automobile part with a limiting structure;

[0018] Figure 3 This is a schematic diagram of the installation of a connecting strip in a fastener for installing automotive parts with a limiting structure;

[0019] Figure 4 The figure is a cross-sectional view of a limiting shell in a fastener for installing automobile parts with a limiting structure;

[0020] Figure 5 for Figure 3 A in the enlarged view.

[0021] In the picture:

[0022] 1. Bolt; 2. Nut; 3. First gasket; 4. Second gasket; 5. Limiting shell; 6. Connecting plate; 7. Insertion tube; 8. Through slot; 9. Block; 10. Telescopic rod; 11. First spring; 12. Pulling block; 13. Pressing block; 14. Connecting strip; 15. Reset pressure plate; 16. Second spring; 17. Limiting ring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides a fastener for installing automobile parts with a limiting structure, such as Figure 1 、 Figure 4 and Figure 5 As shown, the fastener includes a bolt 1, a nut 2 threaded on the bolt 1, a limiting shell 5 sleeved on the bolt 1, a connecting plate 6 fixedly installed inside the limiting shell 5, and an insert 7 fixedly installed on the connecting plate 6. The inner wall of the insert 7 fits with the side surface of the bolt 1, and one side of the connecting plate 6 fits with one side of the nut 2. A through groove 8 is provided on the insert 7, and a block 9 is slidably connected to the inside of the through groove 8. A telescopic rod 10 is fixedly connected to one side of the block 9, and the end of the telescopic rod 10 away from the block 9 is fixedly connected to the inner wall of one side of the limiting shell 5.

[0025] A first spring 11 is sleeved on the side surface of the telescopic rod 10 . One end of the first spring 11 is fixedly connected to an inner wall of the limiting shell 5 , and the other end of the first spring 11 is fixedly connected to one side of the clamping block 9 .

[0026] When the fastener is in use, the bolt 1 needs to be passed through the fixing hole first. After the nut 2 is tightened, the limiting shell 5 needs to be taken out so that the insert 7 inside the limiting shell 5 is aligned with the end of the bolt 1. Then the limiting shell 5 and the insert 7 and other parts are sleeved on the bolt 1. The side surface of the bolt 1 is provided with a card groove. During the sleeve process, the bolt 1 can slide on the inner wall of the insert 7 and come into contact with the arc surface of the block 9. As the sleeve work proceeds, the end of the bolt 1 can squeeze the block 9, causing it to slide and shrink inside the through groove 8. The setting of the telescopic rod 10 is used to improve the stability of the block 9 when it moves. Since the telescopic rod 10 is also sleeved with a first spring 1 1, so the first spring 11 can be compressed during the contraction of the block 9. When the connecting plate 6 comes into contact with the nut 2, the slot just comes to the through slot 8. At this time, the block 9 and the first spring 11 lose the extrusion force. The first spring 11 can instantly release the pressure to push the block 9 to move, so that the block 9 can be inserted into the slot. The plane of the block 9 can resist the inner wall of the slot, so that the limit shell 5, the connecting plate 6 and the insert 7 and other parts are fixed to the side surface of the bolt 1. At this time, the connecting plate 6 can also firmly resist the nut 2, thereby limiting the nut 2 and reducing the loosening of the nut 2 on the bolt 1 due to external vibration.

[0027] Through the setting of the first spring 11, on the one hand, the block 9 can be automatically engaged in the slot, so that the limit shell 5, the connecting plate 6, the insert 7 and other parts can be installed on the bolt 1. On the other hand, the first spring 11 can always push the block 9 through its own force, so that the block 9 can be stably inserted in the slot, thereby providing stability for the installation of parts such as the limit shell 5, the connecting plate 6 and the insert 7 on the bolt 1.

[0028] Furthermore, in order to enable the limiting shell 5 and the insert 7 and other parts to be removed from the bolt 1, as shown in FIG. Figure 1 、 Figure 3 and Figure 4 As shown, a pressure block 13 is sleeved on the side surface of the insert 7, a connecting strip 14 is fixedly connected to one side of the pressure block 13, and a traction block 12 is fixedly connected to one side of the clamping block 9, and the side surface of the traction block 12 slides against the side surface of the connecting strip 14.

[0029] The interior of the limit shell 5 is fixedly connected to a limit ring 17, the inner wall of the limit ring 17 slides in contact with the side surface of the pressure block 13, the side surface of the insert 7 is sleeved with a reset pressure plate 15, and the end of the connecting strip 14 away from the pressure block 13 is fixedly connected to one side of the reset pressure plate 15.

[0030] When it is necessary to remove the limiting shell 5, connecting plate 6 and insert sleeve 7 and other parts from the bolt 1, it is only necessary to press the pressure block 13. The pressure block 13 is sleeved on the side surface of the insert sleeve 7 and can slide on the insert sleeve 7. The setting of the limiting ring 17 and the reset pressure plate 15 improves the stability of the pressure block 13 when moving. When the pressure block 13 moves, it can drive the connecting bar 14 to move synchronously. Since the inclined surface of the connecting bar 14 fits the inclined surface of the traction block 12, when the connecting bar 14 moves, it can force the block 9 to move out of the slot on the bolt 1 through the traction block 12, and shrink in the through slot 8 to provide moving space for the bolt 1. At this time, the limiting shell 5, connecting plate 6 and insert sleeve 7 and other parts can be directly removed from the bolt 1.

[0031] It should be noted that in order to enable the connecting strip 14 and the pressing block 13 to be reset, Figure 1 、 Figure 3 and Figure 4 As shown, a second spring 16 is sleeved on the side surface of the insert 7 , one end of the second spring 16 is fixedly connected to the side of the connecting plate 6 away from the nut 2 , and the other end of the second spring 16 is fixedly connected to the side of the reset pressure plate 15 away from the connecting strip 14 .

[0032] When it is necessary to remove the limiting shell 5, the connecting plate 6 and the insert cylinder 7 from the bolt 1, it is necessary to press the pressure block 13. When the pressure block 13 slides on the insert cylinder 7, the reset pressure plate 15 will also slide synchronously. During the sliding process of the reset pressure plate 15, the second spring 16 can be compressed. After the pressure block 13 loses pressure, the second spring 16 can instantly release the pressure through the reset pressure plate 15 to drive the connecting bar 14 and the pressure block 13 to reset, thereby preventing the connecting bar 14 from affecting the normal operation of the traction block 12 and the card block 9.

[0033] Furthermore, in order to increase the service life of fasteners, Figure 1 、 Figure 2 and Figure 3 As shown, the side surfaces of the bolt 1 are respectively sleeved with a first gasket 3 and a second gasket 4, one side of the first gasket 3 is in contact with one end of the bolt 1, and one side of the second gasket 4 is in contact with the side of the nut 2 away from the connecting plate 6.

[0034] The first gasket 3 and the second gasket 4 have a certain buffering effect. When the fastener is used, the first gasket 3 and the second gasket 4 are in contact with the parts that need to be connected and fixed, avoiding direct hard contact between the bolt 1 and the nut 2 and the parts that need to be connected and fixed, reducing the possibility of mutual damage between the two parties, and helping to improve the service life of the fastener.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fastener for mounting automobile parts with a limiting structure, characterized in that: The fastener comprises a bolt (1), a nut (2) screwed on the bolt (1), a limiting shell (5) sleeved on the bolt (1), a connecting plate (6) fixedly mounted inside the limiting shell (5), and an insert (7) fixedly mounted on the connecting plate (6), wherein the inner wall of the insert (7) is in contact with the side surface of the bolt (1), one side of the connecting plate (6) is in contact with one side of the nut (2), a through slot (8) is provided on the insert (7), a clamping block (9) is slidably connected to the interior of the through slot (8), a telescopic rod (10) is fixedly connected to one side of the clamping block (9), and the end of the telescopic rod (10) away from the clamping block (9) is fixedly connected to the inner wall of one side of the limiting shell (5).

2. The fastener for mounting automobile parts with a limiting structure according to claim 1, characterized in that: A first spring (11) is sleeved on the side surface of the telescopic rod (10), one end of the first spring (11) is fixedly connected to an inner wall of one side of the limiting shell (5), and the other end of the first spring (11) is fixedly connected to one side of the clamping block (9).

3. The fastener for mounting automobile parts with a limiting structure according to claim 1, characterized in that: A pressure block (13) is sleeved on the side surface of the inserting cylinder (7), one side of the pressure block (13) is fixedly connected to a connecting strip (14), and one side of the clamping block (9) is fixedly connected to a traction block (12), and the side surface of the traction block (12) and the side surface of the connecting strip (14) are slidably attached to each other.

4. The fastener for mounting automobile parts with a limiting structure according to claim 3, characterized in that: The interior of the limiting shell (5) is fixedly connected to a limiting ring (17), the inner wall of the limiting ring (17) is slidingly fitted with the side surface of the pressure block (13), the side surface of the insert (7) is sleeved with a reset pressure plate (15), and the end of the connecting strip (14) away from the pressure block (13) is fixedly connected to one side of the reset pressure plate (15).

5. The fastener for mounting automobile parts with a limiting structure according to claim 4, characterized in that: A second spring (16) is sleeved on the side surface of the insert (7), one end of the second spring (16) is fixedly connected to the side of the connecting plate (6) away from the nut (2), and the other end of the second spring (16) is fixedly connected to the side of the reset pressure plate (15) away from the connecting strip (14).

6. The fastener for mounting automobile parts with a limiting structure according to claim 1, characterized in that: The side surfaces of the bolt (1) are respectively provided with a first washer (3) and a second washer (4), one side of the first washer (3) is in contact with one end of the bolt (1), and one side of the second washer (4) is in contact with the side of the nut (2) away from the connecting plate (6).

Images