CN113530950B

CN113530950B - Adjustable bolt

Info

Publication number: CN113530950B
Application number: CN202110811570.9A
Authority: CN
Inventors: 姚殷炎; 陈雪忠; 林培钟; 陆勤超; 王鹏
Original assignee: Haiyan Mengling Car Fittings Co ltd
Current assignee: Haiyan Mengling Car Fittings Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2023-03-31
Anticipated expiration: 2041-07-19
Also published as: CN113530950A

Abstract

The invention discloses an adjustable bolt which comprises a welding body, a T-shaped hole, a screw rod, an upper round body and a lower round body, wherein the welding body is provided with the T-shaped hole with a large upper part and a small lower part, the large diameter section of the T-shaped hole is internally provided with the upper round body matched with the T-shaped hole, the upper round body is eccentrically provided with the screw rod positioned in the T-shaped hole, the screw rod is eccentrically provided with the lower round body matched with the small diameter section of the T-shaped hole, and the large diameter section of the T-shaped hole is internally provided with a detachable blocking piece for blocking the upper round body.

Description

Adjustable bolt

Technical Field

The invention relates to the technical field of fasteners, in particular to the technical field of adjustable bolts.

Background

With the gradual increase of national consumption level, the automobile is no longer a product owned by enterprises and public institutions, and becomes a personal transportation tool; nowadays, automobiles, transportation and electric power industries are increasingly powerful and gradually become the first industry in China, automobiles of various well-known brands enter China, automobiles are distributed all over the country, welding bolts are often used on automobile body parts, and in the past, as a welding bolt, a welding projection is arranged on a receiving surface of a bolt head, and a guide portion which is embedded with an insertion hole formed on an automobile body part is arranged at a neck lower portion of the bolt. Such a welding bolt is welded to a plate material in the following manner: inserting a bolt into the insertion hole, fitting the guide portion into the insertion hole and inserting the bolt into the insertion hole such that the welding projection abuts against the surface of the plate material; then clamping the bolt and the plate inserted into the insertion hole in a manner of pressurizing through the upper and lower electrodes; then, a welding current is applied to the upper and lower electrodes in a state of being sandwiched by the upper and lower electrodes, and the welding projection is melted and the bolt is pressed against the plate material to perform welding. The welding bolt structure is unreasonable in arrangement, cannot be adjusted and is poor in adaptability.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides an adjustable bolt which can be adjusted and has improved adaptability.

In order to achieve the purpose, the invention provides an adjustable bolt which comprises a welding body, a T-shaped hole, a screw rod, an upper round body and a lower round body, wherein the welding body is provided with the T-shaped hole with a large upper part and a small lower part, the large diameter section of the T-shaped hole is internally provided with the upper round body matched with the T-shaped hole, the upper round body is eccentrically provided with the screw rod positioned in the T-shaped hole, the screw rod is eccentrically provided with the lower round body matched with the small diameter section of the T-shaped hole, and the large diameter section of the T-shaped hole is internally provided with a detachable blocking piece for blocking the upper round body.

Preferably, the circumferential surface of the lower end of the welding body is provided with an annular skirt, and the lower end of the annular skirt is provided with welding protrusions which are uniformly distributed.

Preferably, the lower ends of the welding protrusions are provided with conical tips.

Preferably, the lower end of the welding body is provided with a positioning boss matched with the mounting hole of the plate.

Preferably, the detachable blocking piece comprises a U-shaped elastic body, the two ends of the U-shaped elastic body are respectively provided with an inserting body, and the large-diameter section of the T-shaped hole is provided with inserting grooves which are in one-to-one correspondence with the inserting bodies and are matched with the inserting bodies.

Preferably, the lower circular body is sleeved on the screw rod, and a spring fixedly connected is arranged between the lower circular body and the upper circular body.

Preferably, the screw is provided with a groove, the groove is internally provided with a locking plastic body, and the outer end of the locking plastic body does not exceed the circumferential surface of the screw.

The invention has the beneficial effects that: according to the invention, the welding body is provided with the T-shaped hole with the large upper part and the small lower part, the upper circular body matched with the T-shaped hole is arranged in the large diameter section of the T-shaped hole, the screw rod positioned in the T-shaped hole is eccentrically arranged on the upper circular body, the lower circular body matched with the small diameter section of the T-shaped hole is eccentrically arranged on the screw rod, and the position adjustment of the screw rod can be realized by rotating the screw rod.

The both ends in U-shaped elastomer all are equipped with the socket, are equipped with on the big diameter section in T shape hole with socket one-to-one and matched with inserting groove, can easy dismounting, simple structure, the good reliability.

The lower extreme of the welding body is equipped with the location boss with the mounting hole complex of panel, and the location boss plays welding position's effect, supports the mounting simultaneously, improves fixed effect.

The lower round body is sleeved on the screw rod, the spring fixedly connected is arranged between the lower round body and the upper round body, the lower end of the lower round body is flush with the lower end of the plate, and the defect of suspension caused between the screw rod and the mounting hole of the plate is avoided.

Be equipped with the recess on the screw rod, be equipped with locking plastic body in the recess, can play locking effect to the nut.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic view of an adjustable bolt according to the present invention;

FIG. 2 is a top view of an adjustable bolt of the present invention.

In the figure: 1-welding body, 2-T-shaped hole, 3-screw rod, 4-upper round body, 5-lower round body, 6-detachable blocking piece, 7-annular skirt edge, 8-welding projection, 9-conical tip, 10-mounting hole, 11-positioning boss, 12-insertion groove, 13-groove, 14-anti-loose plastic body, 15-spring, 61-U-shaped elastic body and 62-insertion body.

Description of the preferred embodiment

Referring to fig. 1 and 2, the adjustable bolt comprises a welding body 1, a T-shaped hole 2, a screw 3, an upper circular body 4 and a lower circular body 5, wherein the welding body 1 is provided with the T-shaped hole 2 with a large upper end and a small lower end, the upper circular body 4 matched with the T-shaped hole 2 is arranged in the large diameter section of the T-shaped hole 2, the screw 3 positioned in the T-shaped hole 2 is eccentrically arranged on the upper circular body 4, the lower circular body 5 matched with the small diameter section of the T-shaped hole 2 is eccentrically arranged on the screw 3, a detachable blocking piece 6 blocking the upper circular body 4 is arranged in the large diameter section of the T-shaped hole 2, the circumferential surface of the lower end of the welding body 1 is provided with an annular skirt 7, the lower end of the annular skirt 7 is provided with uniformly distributed welding protrusions 8, the lower end of each welding protrusion 8 is provided with a conical tip 9, the lower end of the welding body 1 is provided with a positioning boss 11 matched with a mounting hole 10 of a plate, the detachable blocking piece 6 comprises a U-shaped elastic body 61, the two ends of the U-shaped elastic body 61 are provided with insertion bodies 62, the insertion bodies correspond to the insertion bodies 62 and the insertion bodies 12 are arranged on the upper circular body 3, the screw 13 is arranged on the outer ends of the screw 3, the screw is fixedly connected with the plastic grooves 13, and the plastic grooves 13, the screw 3, the plastic grooves 13 are arranged on the screw.

The working process of the invention is as follows:

in the working process of the adjustable bolt, a welding body 1 is placed on a plate 10, a positioning boss 11 is ensured to be positioned in a mounting hole of the plate 10, then an upper welding head is started to move downwards for a certain distance, the welding head pushes an annular skirt 7 to prick a conical tip 9 into the plate 10, then welding current is switched on for welding, after welding is completed, a screw rod 3 is inserted into a T-shaped hole 2, then a U-shaped elastic body 61 is extruded forcefully to enable an insertion body 62 to move oppositely and be inserted into a corresponding insertion groove 12, and then the U-shaped elastic body 61 is loosened.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. An adjustable bolt which characterized in that: including welding body (1), T shape hole (2), screw rod (3), go up circular body (4) and lower circular body (5), be equipped with big-end-up's T shape hole (2) on welding body (1), be equipped with in the big diameter section of T shape hole (2) rather than matched with and go up circular body (4), it is equipped with screw rod (3) that are located T shape hole (2) to go up the eccentricity on circular body (4), the eccentricity is equipped with circular body (5) down with the little diameter section matched with of T shape hole (2) on screw rod (3), be equipped with in the big diameter section of T shape hole (2) and block dismantling of keeping off piece (6) of keeping off last circular body (4), the lower extreme of welding body (1) is equipped with location boss (11) with the mounting hole complex of panel (10), can dismantle and keep off piece (6) including U-shaped elastomer (61), the both ends of U-shaped elastomer (61) all are equipped with the grafting body (62), be equipped with on the big diameter section of T (2) and peg graft body (62) and peg graft body (12) and peg graft and establish between circular body (5) the fixed spring (5) down the connection spring (15).

2. An adjustable bolt as defined in claim 1 wherein: the lower end periphery of the welding body (1) is provided with an annular skirt edge (7), and the lower end of the annular skirt edge (7) is provided with welding bulges (8) which are uniformly distributed.

3. An adjustable bolt as defined in claim 1 wherein: the lower ends of the welding bulges (8) are provided with conical tips (9).

4. An adjustable bolt as defined in any one of claims 1 to 3 wherein: the screw rod (3) is provided with a groove (13), a locking plastic body (14) is arranged in the groove (13), and the outer end of the locking plastic body (14) does not exceed the circumferential surface of the screw rod (3).