CN215171405U

CN215171405U - High-strength projection welding bolt for automobile

Info

Publication number: CN215171405U
Application number: CN202121461880.4U
Authority: CN
Inventors: 张海静
Original assignee: Ruian Hengfa Auto Parts Co ltd
Current assignee: Ruian Hengfa Auto Parts Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-12-14
Anticipated expiration: 2031-06-29

Abstract

The utility model provides a high strength projection welding bolt for car, including the bolt head, the welding of bolt head surface one side has the threaded rod, the antirust coat has been paintd on the threaded rod surface, the welding of threaded rod top has the strengthening mechanism, threaded rod outer wall cover is equipped with the rubber gasket, rubber gasket one side bonds has metal gasket, telescopic tightening mechanism is all installed to metal gasket surface both sides, bolt head outer wall surface block has protection machanism. This high strength projection welding bolt for car through the setting of fixed slot, steel pole and connecting block, can insert the steel pole in the middle of the fixed slot, then welds connecting block and threaded rod, through the bearing capacity that adds the steel pole in threaded rod inside can effectual increase projection welding bolt, is difficult to fracture and warp, the effectual intensity that has increased the projection welding bolt.

Description

High-strength projection welding bolt for automobile

Technical Field

The utility model relates to a relevant technical field of bolt especially relates to a high strength projection welding bolt for car.

Background

The cylindrical threaded fastener of bolt, machine part, adapted nut, by head and screw rod, the cylinder that has the external screw thread, a kind of fastener that two parts are constituteed, need with the nut cooperation for two parts that have the through-hole of fastening connection, this kind of connection form is called bolted connection, if unscrew the nut from the bolt, can make these two parts part again, so bolted connection belongs to and can dismantle the connection, and the bolt also divide into very many, in automotive production, we often use a high strength projection welding bolt for car.

However, most of the existing projection welding bolts are used in a long time due to small volume, and when the automobile runs, the joints of parts vibrate, so that the projection welding bolts are easy to break, meanwhile, the bolt of the projection welding bolts is too long in service time, and the bolts of the projection welding bolts are easy to wear, so that the projection welding bolts are loosened, and the service lives of the projection welding bolts are very short.

Disclosure of Invention

An object of the utility model is to provide a high strength projection welding bolt for car, in order to solve the current high strength projection welding bolt for car that proposes in the above-mentioned background art, but current projection welding bolt, most of them are in the use, because the volume ratio is small, in long-time the use, when the car travel in-process, part junction produces the vibration, make projection welding bolt appear the fracture easily, the live time overlength simultaneously, projection welding bolt's screw rod is worn and torn easily, make projection welding bolt appear not hard up the condition, thereby lead to projection welding bolt life very few problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high strength projection welding bolt for car, includes the bolt head, and the welding of bolt head surface one side has the threaded rod, the antirust coat has been paintd on the threaded rod surface, the welding of threaded rod top has strengthening mechanism, threaded rod outer wall cover is equipped with the rubber gasket, rubber gasket one side bonds has the metal gasket, telescopic tightening mechanism is all installed to metal gasket surface both sides, bolt head outer wall surface block has protection machanism.

Preferably, the anti-rust layer is tightly attached to the threaded rod, and the anti-rust layer is made of iron red alkyd anti-rust paint.

Preferably, strengthen the mechanism and include fixed slot, steel pole and connecting block, the fixed slot has been seted up to threaded rod outer wall top surface, fixed slot inner wall cover is equipped with the steel pole, steel pole one end welded connection piece.

Preferably, the rubber gasket is tightly attached to the metal gasket, and the size of the rubber gasket is matched with that of the metal gasket.

Preferably, the tightening mechanism comprises a sleeve, limiting blocks, springs and limiting grooves, the sleeve is welded on one side of the outer wall of the metal gasket, the limiting blocks are welded on two sides of the outer wall of the sleeve, the springs are welded on the inner wall of the sleeve, and the limiting grooves are formed in the surface of the bolt head.

Preferably, the size of the limiting block is matched with that of the limiting groove, and the limiting block is movably connected with the limiting groove.

Preferably, the protection mechanism comprises a clamping groove, a clamping block and a protection sleeve, the clamping groove is formed in the surface of the bolt head at equal intervals, the clamping block matched with the clamping groove is arranged at one end of the clamping groove, and the protection sleeve is welded on one side of the clamping block.

Compared with the prior art, the beneficial effects of the utility model are that: this high strength projection welding bolt for car through the setting of fixed slot, steel pole and connecting block, can insert the steel pole in the middle of the fixed slot, then welds connecting block and threaded rod, through the bearing capacity that adds the steel pole in threaded rod inside can effectual increase projection welding bolt, is difficult to fracture and warp, the effectual intensity that has increased the projection welding bolt.

Drawings

FIG. 1 is a front view of the cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the tightening mechanism of the present invention;

FIG. 3 is a schematic view of the protection mechanism of the present invention;

fig. 4 is an enlarged schematic view of a portion a shown in fig. 1 according to the present invention.

In the figure: 1. a bolt head; 2. a threaded rod; 3. a rust-proof layer; 4. a reinforcing mechanism; 401. fixing grooves; 402. a steel rod; 403. connecting blocks; 5. a rubber gasket; 6. a metal gasket; 7. a tightening mechanism; 701. a sleeve; 702. a limiting block; 703. a spring; 704. a limiting groove; 8. a protection mechanism; 801. a card slot; 802. a clamping block; 803. a protective sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a high strength projection welding bolt for car, includes bolt head 1, and 1 surperficial one side welding of bolt head has threaded

rod

2, and 2 surfaces of threaded rod have been smeared

antirust coat

3, and 2 top welding of threaded rod have strengthening

mechanism

4, and 2 outer wall covers of threaded rod are equipped with

rubber gasket

5, and 5 one sides of rubber gasket bond has metal gasket 6, and telescopic tightening mechanism 7 is all installed to 6 surface both sides of metal gasket, and 1 outer wall surface block of bolt head has protection machanism 8.

Further, antirust coat 3 closely laminates with threaded rod 2, and antirust coat 3 uses iron red alkyd antirust paint, through antirust coat 3's setting, forms the one deck protective layer on threaded rod 2 surface, prevents that threaded rod 2 surface oxidation from rustting, the effectual life who increases this projection welding bolt.

Further, strengthening mechanism 4 includes fixed slot 401, steel pole 402 and connecting block 403, fixed slot 401 has been seted up on 2 outer wall top surfaces of threaded rod, fixed slot 401 inner wall cover is equipped with steel pole 402, steel pole 402 one end welded connection piece 403, through fixed slot 401, the setting of steel pole 402 and connecting block 403, can insert steel pole 402 in the middle of the fixed slot 401, then weld connecting block 403 and threaded rod 2, can effectual increase projection welding bolt's bearing capacity through adding steel pole 402 in 2 insides of threaded rod, be difficult to fracture and warp, the effectual intensity that increases projection welding bolt.

Further, rubber gasket 5 closely laminates with

metal gasket

6, and 5 sizes of rubber gasket are identical with 6 sizes of metal gasket, and through

rubber gasket

5 and 6 settings of metal gasket, wherein rubber gasket 5 can effectively increase the frictional force of projection welding bolt and junction, reduces the wearing and tearing of bolt head 1, and metal gasket 6 can effectual fixed sleeve 701, makes sleeve 701 remain stable.

Further, tightening mechanism 7 includes sleeve 701, stopper 702, spring 703 and spacing groove 704, sleeve 701 has all been welded to 6 outer wall one sides of metal gasket, stopper 702 has all been welded to sleeve 701 outer wall both sides, sleeve 701 inner wall welding has spring 703, spacing groove 704 has been seted up on bolt head 1 surface, through sleeve 701, stopper 702, the setting of spring 703 and spacing groove 704, can use the inside spring 703 of sleeve 701 at the inside up-and-down motion of spacing groove 704, stopper 702 can keep the stability of spring 703 simultaneously, can not control, effectual messenger's projection welding bolt is when installing, and there is a absorbing interval in the junction, the extrusion of spring 703 can make projection welding bolt keep stable simultaneously, be difficult to become flexible.

Furthermore, the size of the limiting block 702 is matched with that of the limiting groove 704, the limiting block 702 is movably connected with the limiting groove 704, the stability of the spring 703 can be effectively maintained through the arrangement of the limiting block 702 and the limiting groove 704, and the limiting spring 703 can only be tightened up and down in the limiting groove 704.

Further, the protection mechanism 8 comprises a clamping groove 801, a clamping block 802 and a protection sleeve 803, the clamping groove 801 is formed in the surface of the bolt head 1 at equal intervals, the clamping block 802 matched with one end of the clamping groove 801 is arranged at one end of the clamping groove 801, the protection sleeve 803 is welded on one side of the clamping block 802, and through the arrangement of the clamping groove 801, the clamping block 802 and the protection sleeve 803, the bolt head 1 can be effectively protected from being worn in long-time use, and the service life of the bolt head 1 is prolonged.

The working principle is as follows: firstly, a clamping groove 801 is required to be formed in the outer wall surface of a bolt head 1, then a clamping block 802 matched with the clamping groove 801 is required to be arranged on one side of the clamping groove 801, secondly, a protective sleeve 803 is welded with the clamping block 802, then the protective sleeve 803 is clamped on the surface of the bolt head 1, then a threaded rod 2 is welded on the surface of the bolt head 1, secondly, an anti-rust layer 3 is coated on the surface of the threaded rod 2, secondly, a fixing groove 401 is required to be formed in the upper surface of the threaded rod 2, then a steel rod 402 is inserted into the fixing groove 401, secondly, a connecting block 403 is welded at one end of the steel rod 402, after the steel rod 402 is placed, the connecting block 403 is welded with the threaded rod 2, secondly, a metal gasket 6 is required to be sleeved at one end of the threaded rod 2 close to the bolt head 1, a rubber gasket 5 is adhered to the upper surface of the metal gasket 6, secondly, sleeves 701 are required to be welded at two sides below the metal gasket 6, and a spring 703 is welded inside the sleeve 701, then, limiting blocks 702 are welded on two sides of the sleeve 701, meanwhile, limiting grooves 704 are formed in corresponding positions on the surfaces of the bolt heads 1, finally, when the automobile high-strength projection welding bolt is installed, the sleeve 701 is tightened towards the bolt heads 1 and clamped inside the limiting grooves 704 to extrude the springs 703, and tightening and shock absorption of the projection welding bolt are completed, so that the automobile high-strength projection welding bolt is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high strength projection welding bolt for car, includes bolt head (1), its characterized in that: the bolt head (1) surface one side welding has threaded rod (2), antirust coat (3) have been paintd on threaded rod (2) surface, the welding of threaded rod (2) top has strengthening mechanism (4), threaded rod (2) outer wall cover is equipped with rubber gasket (5), rubber gasket (5) one side bonds and has metal gasket (6), telescopic tightening mechanism (7) are all installed to metal gasket (6) surface both sides, bolt head (1) outer wall surface block has protection machanism (8).

2. The high-strength projection welding bolt for the automobile as claimed in claim 1, wherein the rust preventive layer (3) is tightly attached to the threaded rod (2), and the rust preventive layer (3) is made of iron oxide red alkyd rust preventive paint.

3. The high-strength projection welding bolt for the automobile according to claim 1, wherein the reinforcing mechanism (4) comprises a fixing groove (401), a steel rod (402) and a connecting block (403), the fixing groove (401) is formed in the upper surface of the outer wall of the threaded rod (2), the steel rod (402) is sleeved on the inner wall of the fixing groove (401), and the connecting block (403) is welded at one end of the steel rod (402).

4. The high-strength projection welding bolt for the automobile according to claim 1, characterized in that the rubber gasket (5) is tightly attached to the metal gasket (6), and the size of the rubber gasket (5) is matched with that of the metal gasket (6).

5. The high-strength projection welding bolt for the automobile according to claim 1, wherein the tightening mechanism (7) comprises a sleeve (701), a limiting block (702), a spring (703) and a limiting groove (704), the sleeve (701) is welded on one side of the outer wall of the metal gasket (6), the limiting block (702) is welded on both sides of the outer wall of the sleeve (701), the spring (703) is welded on the inner wall of the sleeve (701), and the limiting groove (704) is formed in the surface of the bolt head (1).

6. The high-strength projection welding bolt for the automobile according to claim 5, characterized in that the size of the limiting block (702) is matched with that of the limiting groove (704), and the limiting block (702) is movably connected with the limiting groove (704).

7. The high-strength projection welding bolt for the automobile according to claim 1, wherein the protection mechanism (8) comprises a clamping groove (801), a clamping block (802) and a protection sleeve (803), the clamping groove (801) is formed in the surface of the bolt head (1) at equal intervals, the clamping block (802) matched with one end of the clamping groove (801) is arranged at one end of the clamping groove (801), and the protection sleeve (803) is welded at one side of the clamping block (802).