CN211852452U

CN211852452U - T-shaped bolt

Info

Publication number: CN211852452U
Application number: CN202020110305.9U
Authority: CN
Inventors: 李勇; 宋江磊
Original assignee: Kunshan Yeahok Hardware Co ltd
Current assignee: Stabio fasteners (Kunshan) Co.,Ltd.
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-11-03
Anticipated expiration: 2030-01-18

Abstract

The utility model discloses a T type bolt, including tying head and screw rod, tie and be equipped with spacing platform between head and the screw rod, tie the head and possess two extension, spacing platform is equipped with two extensions, and arbitrary extension is equipped with a plurality of lock solid muscle bodies, and the strip groove includes vallecular cavity, line seam, and arbitrary extension is equipped with and supplies to tie the head and dodge the arc angle at vallecular cavity internal rotation displacement complex, and arbitrary extension is equipped with and supplies spacing platform to dodge the chamfer at vallecular cavity internal rotation displacement complex. The utility model discloses a bolt head satisfies the position degree stability of bolt in the bar inslot with the spacing design of dual rotation of spacing platform, can make the operation when the bar inslot position degree adjusts smooth and easy simultaneously. The degree of cooperation between the twisted nut and the strip groove is improved, the nut is not easy to deviate in the locking process, and the position precision is improved. The design of the U-shaped gasket with specific design can effectively reduce the damage to the aluminum profile in a locking state and meet the requirements of repeated disassembly and assembled position accuracy of the same position degree.

Description

T-shaped bolt

Technical Field

The utility model relates to a T type bolt belongs to the technical field of locking part.

Background

The T-shaped bolt can be directly placed in an aluminum profile groove, can be automatically positioned and locked in the installation process, is often matched with a flange nut for use, is a standard matched connecting piece in the process of installing corner fittings, and can be selectively used according to the width of the profile groove and different series of profiles. T-bolt belongs to activity rag bolt.

The traditional T-shaped bolt comprises a bolt head and a screw rod, wherein the bolt head penetrates through an adjusting position in an aluminum section groove, the screw rod penetrates through a groove slot to be exposed, the traditional bolt head is locked through a nut, a blocking feeling exists in the sliding of the traditional bolt head in the groove, the position adjustment during assembly is influenced, and in order to meet tolerance requirements, the bolt head needs to be slightly smaller than the size of the groove under general conditions, so that locking movement exists, and the assembly stability is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough of above-mentioned prior art, to traditional T type bolt locking position degree poor stability scheduling problem, provide a T type bolt.

In order to achieve the above purpose, the utility model discloses the technical scheme who adopts is:

a T-shaped bolt is used for being matched and connected in a strip groove of an aluminum profile and comprises a bolt head and a screw rod,

a limiting table is arranged between the bolt head and the screw rod, the bolt head is provided with two extending parts extending outwards along the radial direction of the screw rod, the limiting table is provided with extending parts which correspond to the extending parts one by one and extend towards the same direction, a plurality of locking ribs are arranged on the end surface of any extending part towards the screw rod direction,

the strip groove comprises a groove cavity matched with the bolt head, a slot opening matched with the limiting table is arranged on the groove cavity, two side walls of the groove cavity are respectively matched and abutted with free ends of the two extending parts, two side walls of the slot opening are respectively matched and abutted with free ends of the two extending parts,

wantonly extension portion is equipped with the confession the key head is in the cell cavity internal rotation displacement complex dodges the arc angle, wantonly the extension is equipped with the confession spacing platform is in the complex chamfer of dodging of cell gap internal rotation displacement.

Preferably, the inner wall of the groove cavity is of an isosceles trapezoid groove-shaped structure, and the end face of the plug head is provided with a conical surface matched with the inner wall.

Preferably, an inner concave ring groove used for loading a U-shaped gasket is arranged between the limiting table and the screw rod, and two sides of the U-shaped gasket are respectively abutted to two side walls of the slot opening.

Preferably, the locking rib bodies and the extension portion have the same extension direction, and the locking rib bodies are arranged in parallel.

Preferably, the cross section of the locking rib body is triangular.

Preferably, the outer surface of the T-shaped bolt is provided with an anti-corrosion coating.

The beneficial effects of the utility model are mainly embodied in that:

1. the dual-rotation limiting design of the bolt head and the limiting table is adopted, the stability of the position degree of the bolt in the bar groove is met, and meanwhile, the operation in the bar groove position degree adjustment process is smooth.

2. The degree of cooperation between the twisted nut and the strip groove is improved, the nut is not easy to deviate in the locking process, and the position precision is improved.

3. The design of the U-shaped gasket with specific design can effectively reduce the damage to the aluminum profile in a locking state and meet the requirements of repeated disassembly and assembled position accuracy of the same position degree.

Drawings

Fig. 1 is a schematic view of a partial cross-sectional structure of a T-shaped bolt according to the present invention.

Fig. 2 is a schematic structural diagram of the T-shaped bolt of the present invention.

Fig. 3 is a schematic bottom view of the T-bolt of the present invention.

Fig. 4 is a schematic top view of the T-bolt of the present invention.

Fig. 5 is a schematic view illustrating a connection state of the T-bolt according to the present invention.

Fig. 6 is a schematic diagram illustrating a state of the T-bolt after being connected.

Detailed Description

The utility model provides a T type bolt. The technical solution of the present invention will be described in detail below with reference to the accompanying drawings so as to be easier to understand and grasp.

A T-shaped bolt is used for being matched and connected in a strip groove of an aluminum profile, and comprises a bolt head 1 and a screw rod 2, wherein a limiting table 3 is arranged between the bolt head 1 and the screw rod 2, the bolt head 1 is provided with two extending portions 4 extending along the radial direction of the screw rod 2, the limiting table 3 is provided with extending portions 5 extending in the same direction corresponding to the extending portions 4 one by one, and a plurality of locking ribs 6 are arranged on the end face, facing the direction of the screw rod 2, of any extending portion 4.

The strip groove comprises a groove cavity 7 used for being matched with the bolt head 1, a groove slot 8 used for being matched with the limiting table 3 is arranged on the groove cavity 7, two side walls of the groove cavity 7 are respectively matched and abutted with free ends of the two extending portions 4, and two side walls of the groove slot 8 are respectively matched and abutted with free ends of the two extending portions 5.

Any extension part 4 is provided with an avoidance arc angle 9 for the bolt head 1 to rotate, displace and match in the groove cavity, and any extension part 5 is provided with an avoidance chamfer angle 10 for the limiting platform 3 to rotate, displace and match in the groove slot 8.

The specific implementation process and principle description are as follows:

as shown in fig. 5, the bolt head 1 and the position limiting table 3 pass through the slot 8, and an appropriate position is selected in the groove, so that the groove does not obstruct the bolt head 1 and the position limiting table 3, and the position adjustment is facilitated.

Then clockwise knob is carried out, namely rotation is realized through the design of an avoiding arc angle 9 and an avoiding chamfer angle 10, the bolt head 1 is matched and limited in the groove cavity 7 after rotation, and the limiting platform 3 is limited in the groove slot 8.

At this time, as shown in fig. 6, the screw rod 2 is locked by the washer and the nut, so that the aluminum profile is convenient to assemble the locking piece. In the process of locking the external nut, the locking rib body 6 and the connecting wall surface between the groove cavities 7 of the groove slots 8 are clamped relatively, so that reliable position fixing is realized.

In one embodiment, the inner wall of the slot cavity 7 is in an isosceles trapezoid groove-shaped structure, and the end surface of the bolt head 1 is provided with a conical surface 11 matched with the inner wall, and the conical surface is designed to facilitate the rotation, matching and avoiding of the bolt, so that the matching and rotation displacement requirements of the specific slot cavity 7 are met.

In one embodiment, as shown in fig. 6, a concave ring groove 13 for loading a U-shaped gasket 12 is provided between the stop block 3 and the screw rod 2, and two sides of the U-shaped gasket 12 are respectively abutted against two side walls of the slot 8.

Specifically, the gasket 12 is a ring-shaped gasket sleeved on the screw rod 2, and the ring-shaped gasket may cause compression damage to the aluminum profile in a locked state, which affects multiple disassembly and assembly at the same position, and causes a problem of locking position degree difference among multiple points.

In this case, U type gasket 12 is carried out the grafting by the reverse grafting of line of a small section of thick bamboo 8 and is loaded, and direct and nut looks butt is fixed, can not produce transition crimping damage to the aluminium alloy, when the repeated dismantlement installation of same position degree, can ensure that the position degree of each bolt is unanimous, ensures that the locking part is in same locking plane, has improved the fixed precision of assembly.

In one embodiment, the locking ribs 6 are in the same direction as the extension direction of the extension portion, and a plurality of locking ribs are arranged in parallel. The section of the locking rib body is triangular.

The axial locking after the bolt locking is easily realized, and the position degree is reliable and stable.

In one embodiment, the outer surface of the T-shaped bolt is provided with an anti-corrosion coating which can be a three-order color zinc coating and meets the outdoor use requirement.

Can discover through the above description, the utility model relates to a T type bolt adopts the spacing design of the dual rotation of tieing head and spacing platform, satisfies the position degree stability of bolt in the bar inslot, can make the operation when the bar inslot position degree adjusts smooth and easy simultaneously. The degree of cooperation between the twisted nut and the strip groove is improved, the nut is not easy to deviate in the locking process, and the position precision is improved. The design of the U-shaped gasket with specific design can effectively reduce the damage to the aluminum profile in a locking state and meet the requirements of repeated disassembly and assembled position accuracy of the same position degree.

The above technical solutions of the present invention have been fully described, and it should be noted that the present invention is not limited by the above description, and all technical solutions formed by equivalent transformation or equivalent transformation adopted by the spirit of the present invention in the aspects of structure, method or function by those of ordinary skill in the art all fall within the protection scope of the present invention.

Claims

1. The utility model provides a T type bolt for join in marriage in the strip inslot of aluminium alloy, includes bolt head and screw rod, its characterized in that:

2. A T-bolt as defined in claim 1 wherein:

the inner wall of the groove cavity is of an isosceles trapezoid groove-shaped structure, and the end face of the plug head is provided with a conical surface matched with the inner wall.

3. A T-bolt as defined in claim 1 wherein:

and an inner concave ring groove for loading a U-shaped gasket is arranged between the limiting table and the screw rod, and two sides of the U-shaped gasket are respectively abutted against two side walls of the slot opening.

4. A T-bolt as defined in claim 1 wherein:

the locking rib bodies and the extension direction of the extension portion are in the same direction, and the locking rib bodies are arranged in parallel.

5. A T-bolt as defined in claim 4 wherein:

the cross section of the locking rib body is triangular.

6. A T-bolt as defined in claim 1 wherein:

and an anti-rust coating is arranged on the outer surface of the T-shaped bolt.