CN213145013U

CN213145013U - Self-locking bolt for thin-wall component

Info

Publication number: CN213145013U
Application number: CN202022057435.3U
Authority: CN
Inventors: 李�瑞; 张宁; 李杨; 匡伟
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-05-07
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a from locking-type bolt for thin wall component belongs to the component connection field, including screw rod, nut and the sleeve of can buckling, the anchor hole has been seted up along the circumferencial direction in the bottom of screw rod. The nut is connected at the periphery of the screw in a matching way. The bendable sleeve is connected to the bottom end of the nut and sleeved outside the screw rod, the bottom end of the bendable sleeve is bent inwards to form a sleeve elbow matched with the anchoring hole, and the side wall of the bendable sleeve is symmetrically provided with a vertical sleeve opening. When the nut is screwed to the bottom, the bendable sleeve and the nut lock the screw rod to finish fixing. The self-locking bolt can ensure that the screw can be fixedly locked only by operating on one side of the thin-wall component, and the risk of detachment or detour is conveniently and quickly saved.

Description

Self-locking bolt for thin-wall component

Technical Field

The utility model relates to a component connection field specifically is a from locking-type bolt for thin wall component.

Background

At present, the types of bolts on the world are many, and common bolts, self-tapping screws, expansion bolts and the like, chemical anchor bolts and the like are mainly used. Among them, the ordinary bolt needs to be fixed at one end by a nut, the tapping screw needs to have a contact surface of sufficient thickness to lock the thread, and the expansion bolt and the chemical bolt are used for a structure body of not less than the thickness of the bolt itself. Some thin-wall components such as iron sheets, thin steel plates, thin plastic plates and the like are fixedly installed, and can not be stretched to the back by hands or tools for nut fixation, the plates are easily burnt out after being welded too thin, and the plates are easy to fall off after being glued for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a from locking-type bolt for thin wall component to can't stretch the technical problem who carries out the nut at the back with hand or instrument when solving current bolt and being used for installing the thin wall component.

In order to solve the technical problem, the utility model provides a from locking-type bolt for thin wall component, include:

the bottom of the screw is provided with an anchoring hole along the circumferential direction;

the nut is connected to the periphery of the screw in a matching way;

the sleeve of can buckling is connected in the bottom of nut and the cover is established outside the screw rod, the telescopic bottom of can buckling inwards buckles and forms and anchor hole complex sleeve elbow, the telescopic lateral wall symmetry of can buckling has seted up the vertical opening of sleeve.

Preferably, the inner wall of the bendable sleeve is provided with a bending gap along the circumferential direction.

Preferably, the bending gaps are arranged at intervals along the length direction of the bendable sleeve.

Preferably, the depth of the bending gap is 1/3 of the wall thickness of the bendable sleeve.

Preferably, the bendable sleeve is an annular iron sheet.

Preferably, the bendable sleeve is an annular iron sheet with the thickness of 0.5-1 mm.

Preferably, the vertical opening of the sleeve is 10mm away from the top and the bottom of the bendable sleeve.

Compared with the prior art, the utility model discloses a characteristics and beneficial effect do: the utility model discloses a from locking-type bolt connect a sleeve of can buckling in the bottom of nut, the telescopic cover of can buckling is outside the screw rod, and telescopic bottom of can buckling is connected with the bottom anchor of screw rod, and the vertical opening of sleeve is seted up to telescopic lateral wall symmetry of can buckling. When the nut is screwed to the bottom, the bendable sleeve and the nut lock the screw rod to finish fixing. The self-locking bolt can ensure that the screw can be fixedly locked only by operating on one side of the thin-wall component, and the risk of detachment or detour is conveniently and quickly saved.

Drawings

Fig. 1 is a schematic view of the self-locking bolt of the present invention.

FIG. 2 is a schematic view of a screw.

FIG. 3 is a schematic view of the connection of the nut and the bendable sleeve.

Fig. 4 is a schematic view of section 1-1 in fig. 1.

Fig. 5 is an enlarged view of a portion a of fig. 4.

Fig. 6 is an enlarged view of part B of fig. 4.

Fig. 7 is a first schematic view of the installation of the self-locking bolt.

Fig. 8 is a second schematic view of the installation of the self-locking bolt.

Fig. 9 is a third schematic view of the installation of the self-locking bolt.

The attached drawings are marked as follows: 1-screw rod, 2-nut, 3-bendable sleeve, 4-anchoring hole, 5-sleeve elbow, 6-sleeve vertical opening, 7-bending notch and 8-steel plate.

Detailed Description

In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention will be further described below.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 6, a self-locking bolt for a thin-walled member comprises a threaded rod 1, a nut 2 and a bendable sleeve 3.

The bottom of the screw rod 1 is provided with an anchoring hole 4 along the circumferential direction. The nut 2 is connected on the periphery of the screw rod 1 in a matching way. The sleeve 3 that can buckle is connected in the bottom of nut 2 and the cover is established outside screw rod 1, and the bottom of sleeve 3 that can buckle inwards buckles and forms and anchor hole 4 complex sleeve elbow 5, and sleeve vertical opening 6 has been seted up to the lateral wall symmetry of sleeve 3 that can buckle. The distance between the vertical opening 6 of the sleeve and the top and the bottom of the bendable sleeve 3 is 10 mm. The bendable sleeve 3 is an annular iron sheet with the thickness of 0.5-1 mm.

In order to facilitate the bending of the bendable sleeve 3, the inner wall of the bendable sleeve 3 is provided with bending notches 7 along the circumferential direction. The bending notches 7 are arranged at intervals along the length direction of the bendable sleeve 3. The depth of the bending gap 7 cannot be too large, so that the bendable sleeve 3 is prevented from being deformed after being bent, and the bendable sleeve 3 is difficult to take out due to deformation when being recycled. The depth of the bending gap 7 is 1/3 of the wall thickness of the bendable sleeve 3.

The self-locking bolt can be used for fixing thin-wall components such as iron sheets, thin steel plates, thin plastic plates and the like. As shown in fig. 7, taking a steel plate as an example, the screw 1 and the bendable sleeve 3 are first inserted through a hole reserved on the steel plate 8. As shown in fig. 8, when the nut 2 is tightened, the distance between the nut 2 and the bottom end of the screw rod 1 is gradually reduced, and the bendable sleeve 3 is expanded due to the force. As shown in fig. 9, after the nut 2 is screwed to the bottom, the bendable sleeve 3 and the nut 2 lock the screw 1 to complete the fixation, and the exposed screw 1 can be subsequently operated. A gasket can be arranged between the nut 2 and the steel plate 8 according to requirements.

The above embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims.

Claims

1. A self-locking bolt for a thin-walled component, comprising:

the bottom of the screw rod (1) is provided with an anchoring hole (4) along the circumferential direction;

the nut (2) is connected to the periphery of the screw (1) in a matching way;

the sleeve (3) of can buckling is connected in the bottom of nut (2) and the cover is established outside screw rod (1), the bottom of sleeve (3) of can buckling inwards buckle form with anchor hole (4) complex sleeve elbow (5), sleeve vertical opening (6) have been seted up to the lateral wall symmetry of sleeve (3) of can buckling.

2. The self-locking bolt for thin-walled components according to claim 1, characterized in that: the inner wall of the bendable sleeve (3) is provided with bending notches (7) along the circumferential direction.

3. The self-locking bolt for thin-walled components according to claim 2, characterized in that: the bending notches (7) are arranged at intervals along the length direction of the bendable sleeve (3).

4. The self-locking bolt for thin-walled components according to claim 2, characterized in that: the depth of the bending gap (7) is 1/3 of the wall thickness of the bendable sleeve (3).

5. The self-locking bolt for thin-walled components according to claim 1, characterized in that: the bendable sleeve (3) is an annular iron sheet.

6. The self-locking bolt for thin-walled components according to claim 5, characterized in that: the bendable sleeve (3) is an annular iron sheet with the thickness of 0.5-1 mm.

7. The self-locking bolt for thin-walled components according to claim 1, characterized in that: the distance between the vertical opening (6) of the sleeve and the top and the bottom of the bendable sleeve (3) is 10 mm.