CN202926788U

CN202926788U - Expansion bolt capable of being installed on thin wall

Info

Publication number: CN202926788U
Application number: CN 201220702395
Authority: CN
Inventors: 邓楠; 谭俊伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-30
Filing date: 2012-11-30
Publication date: 2013-05-08
Anticipated expiration: 2022-11-30

Abstract

The utility model discloses an expansion bolt capable of being installed on a thin wall, belongs to the field of threaded connection member, and the expansion bolt comprises a bolt, an expansion sleeve and a nut, the expansion sleeve comprises a cylinder portion and an expansion portion provided with a plurality of longitudinal slots, the expansion portion is provided with a plurality of expansion ribs, and the expansion bolt is characterized in that an outer surface of the cylinder portion of the expansion sleeve is provided with outer threads, an inner hole surface of the nut is provided with inner threads matched with the expansion sleeve outer threads, an inner surface of the cylinder portion of the expansion sleeve is provided with inner threads matched with outer threads of the bolt, the expansion sleeve is sleeved on the bolt and is in threaded connection with the bolt, and the nut is sleeved on the expansion sleeve and is in threaded connection with the expansion sleeve. Only single side construction is needed to reliably fasten the expansion bolt on the thin wall or on a thick wall, the expansion bolt can be easily dismounted for repeat usage, destructive damage to the wall body will not happen, and the expansion bolt is saving and environment friendly.

Description

Can fill the EXPANSION ANCHOR BOLTS of thin-walled

Technical field

The utility model relates to EXPANSION ANCHOR BOLTS, particularly a kind of EXPANSION ANCHOR BOLTS that can be arranged on the filled thin-walled that also can reliably fix on heavy wall on thin-walled.

Background technique

Traditional EXPANSION ANCHOR BOLTS is to utilize nut to screw in, and the expansion rib that promotes expansion sleeve opens in body of wall to be realized fixing.It is well that this EXPANSION ANCHOR BOLTS is used for thicker wallboard effect, but is used in thinner wallboard, and when cutting off wallboard, canister wall etc. as thin-walled, fastening effect is just very poor.On thinner wallboard fixedly during the load-bearing bolt, often need to be in the two-sided construction of wallboard, and some canisters enter internal tank difficulty and wasting time and energy especially after coming into operation.Notice of authorization number for the Chinese utility model patent of CN2464976Y " thin-walled EXPANSION ANCHOR BOLTS " although can tighten at thin-walled, but also need two surface constructions, and the bead structures of expansion sleeve is complicated, difficulty of processing is high, the perforated section of expansion sleeve is suitable with thickness of wall body, and Applicable scope is restricted.

Therefore, provide a kind of need the single face construction can reliable fastening EXPANSION ANCHOR BOLTS be the technical problem that needs to be resolved hurrily in the industry on thin-walled or heavy wall again.

The model utility content

The purpose of this utility model only be to provide need the single face construction just can be on thin-walled or heavy wall reliable fastening EXPANSION ANCHOR BOLTS, be applicable to the wallboard of different-thickness, simple in structure, easy for installation.

The utility model proposes a kind of EXPANSION ANCHOR BOLTS that fills thin-walled, comprise bolt, expansion sleeve, nut, expansion sleeve is comprised of cylindrical part and the bulge that has some cannelures, bulge has many expansion muscle, the cylindrical part outer surface of expansion sleeve is provided with outside thread, the bore area of nut is provided with the internal thread that matches with described expansion sleeve outside thread, the cylindrical part internal surface of expansion sleeve is provided with the internal thread that matches with the outside thread of bolt, expansion sleeve is connected with bolt thread and is sleeved on bolt, and nut is threaded with expansion sleeve and is sleeved on expansion sleeve.

Preferably, the nut of described bolt is coniform, and the end of bolt is connecting clamp, and clamp is provided with two mutual parallel surfaces.

Be provided with packing ring between described nut and body of wall.

Cannelure on described expansion sleeve is the rectangular groove with fillet.

The utility model can be fastened on thin-walled or heavy wall, has expanded the using scope of conventional expanded bolt, only needs the single face construction during installation, installs simple; Substantially the same with traditional EXPANSION ANCHOR BOLTS in the raw material use amount, reach better technique effect on the basis of saving cost; Can remove easily, and can to the damage of damaging property of body of wall, not reuse economical environment-protective.

Description of drawings

Fig. 1 is the structural representation that is in disassembled form of the present utility model;

Fig. 2 is assembly structure schematic diagram of the present utility model

The realization of the utility model purpose, functional characteristics and advantage are described further with reference to accompanying drawing in connection with embodiment.

Embodiment

Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.

with reference to Fig. 1, an embodiment of the present utility model is proposed, comprise bolt 1, expansion sleeve 2, nut 3, expansion sleeve 2 is comprised of cylindrical part and the bulge that has some cannelures 4, bulge has many expansion muscle 5, the cylindrical part outer surface of expansion sleeve is provided with outside thread, the bore area of nut 3 is provided with the internal thread that matches with described expansion sleeve 2 outside threads, the cylindrical part internal surface of expansion sleeve 2 is provided with the internal thread that matches with the outside thread of bolt 1, expansion sleeve 2 is threaded with bolt 1 and is sleeved on bolt 1, nut 3 is threaded with expansion sleeve 2 and is sleeved on expansion sleeve 2.The nut 6 of described bolt is coniform, and the end of bolt 1 is connecting clamp 7, and clamp 7 is provided with two mutual parallel surfaces.Be provided with packing ring 10 between described nut 3 and body of wall 8.Cannelure on described expansion sleeve is the rectangular groove with fillet 9.

during installation, bolt 1 is threaded in expansion sleeve 2, make nut and the expansion muscle 5 of bolt 1 be in same end, expand muscle 5 in the raw this moment, deformation does not occur, nut 3 is threaded into is enclosed within outside expansion sleeve 2, nut 3 is threaded to the cylindrical part and the bulge connecting place that are positioned at expansion sleeve 2 and is the best, the bulge end of packing ring from expansion sleeve 2 is inserted in, make packing ring 10 be close to nut 3, the bulge of bolt 1 and expansion sleeve 2 is put into the hole of body of wall, packing ring 10 pushes against metope, fix nut 3 with a spanner, screw the clamp 7 of bolt 1 with another spanner, expansion muscle 5 opens gradually, body of wall between packing ring 10 and expansion muscle 5 is tightened, whole EXPANSION ANCHOR BOLTS firmly is contained on body of wall.Fix nut 3 with a spanner when pulling down, the clamp 7 that screws bolt 1 with another spanner in the other direction gets final product.

The above is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.

Claims

1. EXPANSION ANCHOR BOLTS that can fill thin-walled, comprise bolt, expansion sleeve, nut, expansion sleeve is comprised of cylindrical part and the bulge that has some cannelures, bulge has many expansion muscle, it is characterized in that, the cylindrical part outer surface of expansion sleeve is provided with outside thread, the bore area of nut is provided with the internal thread that matches with the expansion sleeve outside thread, the cylindrical part internal surface of expansion sleeve is provided with the internal thread that matches with the outside thread of bolt, expansion sleeve is connected with bolt thread and is sleeved on bolt, and nut is threaded with expansion sleeve and is sleeved on expansion sleeve.

2. the EXPANSION ANCHOR BOLTS that fills thin-walled according to claim 1, is characterized in that, the nut of described bolt is coniform, and the end of bolt is connecting clamp, and clamp is provided with two mutual parallel surfaces.

3. the EXPANSION ANCHOR BOLTS that fills thin-walled according to claim 2, is characterized in that, is provided with packing ring between described nut and body of wall.

4. the EXPANSION ANCHOR BOLTS that fills thin-walled according to claim 3, is characterized in that, the cannelure on described expansion sleeve is the rectangular groove with fillet.