CN204003872U

CN204003872U - Expansion anchor bolts

Info

Publication number: CN204003872U
Application number: CN201420357781.5U
Authority: CN
Inventors: 吴泽文
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2014-12-10
Anticipated expiration: 2024-06-30

Abstract

EXPANSION ANCHOR BOLTS, it comprises screw rod, expansion tube, pad, spring washer and nut, the front portion of screw rod has the outside thread matching with nut, rear end has expansion-head, the rear end of expansion tube is evenly equipped with some along its axially extended opening slot, screw rod is set in expansion tube actively and front end and the expansion-head of screw rod are stretched out from the two ends of expansion tube respectively, expansion-head and opening slot are positioned at the same side, pad, spring washer and nut are by being set in successively the front end of screw rod before backward, on the front end outer wall of expansion tube by being provided with successively the first ring-shaped step and the second ring-shaped step after forward direction, the diameter of the second ring-shaped step is less than the diameter of the first ring-shaped step.The EXPANSION ANCHOR BOLTS that the utility model provides can be disassembled like a cork, can reuse, and has solved the problem attractive in appearance that affects, avoid producing potential safety hazard, and simple in structure, be easy to make, improved the recycling rate of waterused of resource, energy-conservation and environmental protection in the extreme.

Description

EXPANSION ANCHOR BOLTS

Technical field

The utility model relates to fastener areas, relates in particular to a kind of EXPANSION ANCHOR BOLTS.

Background technique

A kind of EXPANSION ANCHOR BOLTS of existing use, it comprises screw rod, expansion tube, pad, spring washer and nut, the front portion of screw rod has outside thread, the rear end of matching with nut and has expansion-head, the rear end of expansion tube is evenly equipped with some along its axially extended opening slot, screw rod is set in expansion tube actively and front end and the expansion-head of screw rod are stretched out from the two ends of expansion tube respectively, expansion-head and opening slot are positioned at the same side, and pad, spring washer and nut are by being set in successively the front end of screw rod before backward.The EXPANSION ANCHOR BOLTS of this structure can only be used once, this is because after EXPANSION ANCHOR BOLTS installation, expansion tube has been fixed on ground or wall firmly, on expansion tube, do not borrow force, therefore be difficult to be disassembled, even if EXPANSION ANCHOR BOLTS is pulled down by rough power, EXPANSION ANCHOR BOLTS also can produce compared with large distortion and distortion and can not use because of expansion tube; If expansion tube can not disassemble in time after being used to complete, not only affect attractive in appearancely, and have scratch personnel's potential safety hazard.

Model utility content

Technical problem to be solved in the utility model is to provide a kind of simple in structure, detachable and reusable EXPANSION ANCHOR BOLTS.

In order to solve the problems of the technologies described above, the utility model adopts following technological scheme: EXPANSION ANCHOR BOLTS, it comprises screw rod, expansion tube, pad, spring washer and nut, the front portion of screw rod has the outside thread matching with nut, rear end has expansion-head, the rear end of expansion tube is evenly equipped with some along its axially extended opening slot, screw rod is set in expansion tube actively and front end and the expansion-head of screw rod are stretched out from the two ends of expansion tube respectively, expansion-head and opening slot are positioned at the same side, pad, spring washer and nut are by being set in successively the front end of screw rod before backward, on the front end outer wall of expansion tube by being provided with successively the first ring-shaped step and the second ring-shaped step after forward direction, the diameter of the second ring-shaped step is less than the diameter of the first ring-shaped step.

The using method of the EXPANSION ANCHOR BOLTS that the utility model provides is as follows: first on metope or ground, make a call to one and the corresponding hole of EXPANSION ANCHOR BOLTS, expansion tube is placed in this hole together with suit screw rod, expansion-head in the inner, the first ring-shaped step and the second ring-shaped step are positioned at the outside in this hole, finally screw nut, screw rod is drawn in expansion-head in expansion tube, the rear end of expansion tube is swollen, and can reach fastening object; When needs disassemble this EXPANSION ANCHOR BOLTS, first remove nut, spring washer and pad, knock screw rod, expansion-head is departed from from the rear end of expansion tube, finally the claw of claw hammer or bearing puller stretched in the space that the first ring-shaped step, the second ring-shaped step and metope enclose formation and fasten the first ring-shaped step, slightly firmly expansion tube can be pulled out, screw rod also can be removed immediately, the EXPANSION ANCHOR BOLTS removing does not almost deform, and can reuse a little after finishing.

To sum up, the EXPANSION ANCHOR BOLTS that the utility model provides can be disassembled like a cork, can reuse, solved and affected problem attractive in appearance, avoided producing potential safety hazard, and simple in structure, be easy to make, improved the recycling rate of waterused of resource, in the extreme energy-conservation and environmental protection.

As improvement of the present utility model, the front end outer wall Spielpassung of described the second ring-shaped step and expansion tube.Adopt such structure, the second ring-shaped step can take off from expansion tube when needed, and during fabrication, can first produce the second ring-shaped step, be then set on expansion tube, and more convenient like this processing, and save manufacturing process.

Accompanying drawing explanation

Fig. 1 is the utility model one embodiment's structural representation.

Fig. 2 is the utility model one embodiment's use phase diagram.

Fig. 3 is the utility model one embodiment's dismounting schematic diagram.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described:

Referring to Fig. 1, Fig. 2 and Fig. 3.

The EXPANSION ANCHOR BOLTS that the utility model one embodiment provides, it comprises screw rod 1, expansion tube 2, pad 3, spring washer 4 and nut 5, the front portion of screw rod 1 has the outside thread matching with nut 5, rear end has expansion-head 6, the rear end of expansion tube 2 is evenly equipped with four along its axially extended opening slot 21, screw rod 1 is set in expansion tube 2 actively and front end and the expansion-head 6 of screw rod 1 are stretched out from the two ends of expansion tube 2 respectively, expansion-head 6 is positioned at the same side with opening slot 21, pad 3, spring washer 4 and nut 5 are by being set in successively the front end of screw rod 1 before backward, the front end outer wall of expansion tube 2 is provided with the first ring-shaped step 7 and the second ring-shaped step 8 after by forward direction successively, the diameter of the second ring-shaped step 8 is less than the diameter of the first ring-shaped step 7.The front-end face coplanar of the front-end face of the first ring-shaped step 7 and expansion tube 2, the first ring-shaped step 7 can be one-body molded with expansion tube 2, the front end outer wall Spielpassung of the second ring-shaped step 8 and expansion tube 2.

During use, first on metope 9, make a call to one with expansion tube 2 shapes, size hole accordingly, expansion tube 2 is placed in this hole together with suit screw rod 1, expansion-head 6 in the inner, the first ring-shaped step 7 and the second ring-shaped step 8 are positioned at the outside in this hole, finally screw nut 5, screw rod 1 is drawn in expansion-head 6 in expansion tube 2, and the rear end of expansion tube 2 is swollen, and can reach fastening object; When needs disassemble this EXPANSION ANCHOR BOLTS, first remove nut 5, spring washer 4 and pad 3, knock screw rod 1, expansion-head 6 is departed from from the rear end of expansion tube 2, finally the claw of claw hammer 10 stretched in the space that the first ring-shaped step 7, the second ring-shaped step 8 and metope 9 enclose formation and fasten the first ring-shaped step 7, slightly firmly expansion tube 2 can be pulled out, screw rod 1 also can be removed immediately.

Be to be understood that example as herein described and mode of execution are only in order to illustrate, those skilled in the art can make various modifications or variation according to it, all belong to protection domain of the present utility model.

Claims

1. EXPANSION ANCHOR BOLTS, it comprises screw rod, expansion tube, pad, spring washer and nut, the front portion of screw rod has the outside thread matching with nut, rear end has expansion-head, the rear end of expansion tube is evenly equipped with some along its axially extended opening slot, screw rod is set in expansion tube actively and front end and the expansion-head of screw rod are stretched out from the two ends of expansion tube respectively, expansion-head and opening slot are positioned at the same side, pad, spring washer and nut are by being set in successively the front end of screw rod before backward, it is characterized in that: on the front end outer wall of expansion tube by being provided with successively the first ring-shaped step and the second ring-shaped step after forward direction, the diameter of the second ring-shaped step is less than the diameter of the first ring-shaped step.

2. EXPANSION ANCHOR BOLTS as claimed in claim 1, is characterized in that: the front end outer wall Spielpassung of described the second ring-shaped step and expansion tube.