CN103573769A

CN103573769A - Combination type expansion hook

Info

Publication number: CN103573769A
Application number: CN201310627896.1A
Authority: CN
Inventors: 乔睿智
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-28
Filing date: 2013-11-28
Publication date: 2014-02-12

Abstract

The invention discloses a combination type expansion hook and belongs to devices for fastening or fixing components or machine parts, such as nails, bolts, circlips, clamps, hoops or wedges, especially expansion bolts provided with detachable hooks. The combination type expansion hook comprises an expansion bolt provided with a conical tail end, and the expansion bolt consists of a bolt, a nut, a spring washer, a flat washer and a sleeve. The combination type expansion hook is characterized in that a dovetail groove is formed in the front end of the bolt, a hook with a dovetail joint at the tail end is installed in the dovetail groove, and the position where the bolt and the hook are connected is sleeved with a moving casing. The combination type expansion hook has the benefits that the expansion hook is formed by the expansion bolt and the hook through combination, the hook can be installed and dismounted at any time as required, hidden dangers caused by remaining hooks on the ground or walls are eliminated, and the expansion bolt with the hook dismounted can be used independently.

Description

Combined type expansion hook hitch

Technical field

The invention belongs to the device that fastening or fixed component or machine parts are used, as nail, bolt, circlip, folder, clip or wedge; Link or connection, particularly with the EXPANSION ANCHOR BOLTS of detachable hanger.

Background technique

EXPANSION ANCHOR BOLTS, be pipeline is propped up/hangs/bracket or equipment are fixing on the wall, a kind of special thread link used on floor, on post.Its principle is that EXPANSION ANCHOR BOLTS is got to the Kong Zhonghou on ground or metope, the nut screwing up with a wrench in EXPANSION ANCHOR BOLTS, and bolt walks toward outside, and the metallic sheath of outside is motionless, so the major part under bolt is just metallic sheath spreading, make the whole hole of its overflow, now, EXPANSION ANCHOR BOLTS just can't pump out.Bolt front end is extended and be made into hook-shaped and just become expansion hook hitch, expansion hook hitch is used widely, some advertiser usually installs expansion hook hitch for propaganda materials such as temporary fixed balloon rainbow doors and holds the fixedly rope of use in cement flooring, but because expansion hook hitch is difficult to take out, leave on the ground hidden danger after finishing using.

Summary of the invention

In order to overcome the deficiency that is difficult to taking-up after existing expansion hook hitch uses, the invention provides a kind of combined type expansion hook hitch, this combined type expansion hook hitch not only can be arranged on ground and wall easily, and it is separated with bolt to realize hook.

The technical solution adopted for the present invention to solve the technical problems is: a kind of combined type expansion hook hitch, comprise the EXPANSION ANCHOR BOLTS being formed by the bolt with taper end, nut, spring washer, plain washer, sleeve, it is characterized in that: the front end at bolt is provided with dovetail groove, tail end is installed with the hook of dovetail joint in dovetail groove, bolt and hook joint cover have moving casing.

Described moving casing is light pipe.

Described moving casing is that internal surface is with the threaded sleeve of the internal thread coordinating with bolt.

The using method one of combined type expansion hook hitch, first EXPANSION ANCHOR BOLTS is fixed on ground and wall according to usual method, then by the dovetail groove of the dovetail joint inserting bolt of hook and package moving casing, this hook can be used, use rear desirable lower draw-bar and sleeve pipe and use helmet nut to be screwed on bolt, the inconvenience that the hook that can avoid leaving over may cause.

The using method two of combined type expansion hook hitch, two concentric hole different with wall drill diameter on ground, middle aperture is identical with sleeve diameter, the large bore dia in top is more than or equal to helmet nut diameter 0.3-1cm, the degree of depth is identical with helmet nut, EXPANSION ANCHOR BOLTS is fixed on ground and wall according to usual method, then by the dovetail groove of the dovetail joint inserting bolt of hook and package moving casing, this hook can be used, using rear desirable lower draw-bar and moving casing uses helmet nut to be screwed on bolt, this is that helmet nut upper surface and ground and metope maintain an equal level.

The invention has the beneficial effects as follows by EXPANSION ANCHOR BOLTS and the expansion hook hitch that combines of hook and can install at any time or unload as required lower draw-bar, be convenient to clear up the hidden danger that the hook left on ground and wall causes, the EXPANSION ANCHOR BOLTS that sheds hook can be used separately.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention,

Fig. 2 is that the present invention uses rear phase diagram,

Fig. 3 is another phase diagram after the present invention uses.

In figure, 1. hook, 2. moving casing, 3. dovetail joint, 4. dovetail groove, 5. bolt, 6. nut, 7. spring washer, 8. plain washer, 9. sleeve, 10. taper end, 11. helmet nuts.

Embodiment

The specific embodiment of the present invention is, as shown in the figure:

Embodiment 1, a kind of combined type expansion hook hitch, comprise the EXPANSION ANCHOR BOLTS being formed by the bolt 5 with taper end 10, nut 6, spring washer 7, plain washer 8, sleeve 9, it is characterized in that: the front end at bolt is provided with dovetail groove 4, tail end is installed with the hook 1 of dovetail joint 3 in dovetail groove, bolt and hook joint cover have moving casing 2.Described moving casing is light pipe.

Embodiment 2, a kind of combined type expansion hook hitch, comprise the EXPANSION ANCHOR BOLTS being formed by the bolt 5 with taper end 10, nut 6, spring washer 7, plain washer 8, sleeve 9, it is characterized in that: the front end at bolt is provided with dovetail groove 4, tail end is installed with the hook 1 of dovetail joint 3 in dovetail groove, bolt and hook joint cover have moving casing 2.Described moving casing is that internal surface is with the threaded sleeve of the internal thread coordinating with bolt.

Embodiment 3, the using method one of combined type expansion hook hitch, first EXPANSION ANCHOR BOLTS is fixed on ground and wall according to usual method, then by the dovetail groove of the dovetail joint inserting bolt of hook and package moving casing, this hook can be used, use rear desirable lower draw-bar and sleeve pipe and use helmet nut to be screwed on bolt, the inconvenience that the hook that can avoid leaving over may cause.

Embodiment 4, the using method two of combined type expansion hook hitch, two concentric hole different with wall drill diameter on ground, middle aperture is identical with sleeve diameter, the large bore dia in top is more than or equal to helmet nut diameter 0.3-1cm, the degree of depth is identical with helmet nut, EXPANSION ANCHOR BOLTS is fixed on ground and wall according to usual method, then by the dovetail groove of the dovetail joint inserting bolt of hook and package moving casing, this hook can be used, using rear desirable lower draw-bar and moving casing uses helmet nut to be screwed on bolt, this is that helmet nut upper surface and ground and metope maintain an equal level.

Claims

1. a combined type expansion hook hitch, comprise the EXPANSION ANCHOR BOLTS being formed by the bolt with taper end, nut, spring washer, plain washer, sleeve, it is characterized in that: the front end at bolt is provided with dovetail groove, tail end is installed with the hook of dovetail joint in dovetail groove, bolt and hook joint cover have moving casing.

2. combined type expansion hook hitch according to claim 1, is characterized in that: described moving casing is light pipe.

3. combined type expansion hook hitch according to claim 1, is characterized in that: described moving casing is that internal surface is with the threaded sleeve of the internal thread coordinating with bolt.

4. the using method of the described combined type expansion hook hitch of one of right 1-3, it is characterized in that: first EXPANSION ANCHOR BOLTS is fixed on ground and wall according to usual method, then by the dovetail groove of the dovetail joint inserting bolt of hook and package moving casing, this hook can be used, use rear desirable lower draw-bar and sleeve pipe and use helmet nut to be screwed on bolt, the inconvenience that the hook that can avoid leaving over may cause.

5. the using method of the described combined type expansion hook hitch of one of right 1-3, it is characterized in that: two concentric hole different with wall drill diameter on ground, middle aperture is identical with casing diameter, the large bore dia in top is more than or equal to helmet nut diameter 0.3-1cm, the degree of depth is more than or equal to plain washer bottom to the distance at bolt top, EXPANSION ANCHOR BOLTS is fixed on ground and wall according to usual method, then by the dovetail groove of the dovetail joint inserting bolt of hook and package moving casing, this hook can be used, using rear desirable lower draw-bar and sleeve pipe uses helmet nut to be screwed on bolt, this is that helmet nut upper surface and ground and metope maintain an equal level.