CN202690635U

CN202690635U - Novel expansion bolt

Info

Publication number: CN202690635U
Application number: CN 201220379421
Authority: CN
Inventors: 薄其玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-02
Filing date: 2012-08-02
Publication date: 2013-01-23
Anticipated expiration: 2022-08-02

Abstract

The utility model relates to a novel expansion bolt which comprises a screw and an expansion sleeve. The novel expansion bolt is characterized in that the expansion sleeve is sleeved on the screw, and the parts of the screw, at both sides of the expansion sleeve, are connected with a nut and an expansion cone through threads; the expansion sleeve is provided with an opening, the end head of a connecting end of the screw and the nut is provided with an inner hexagonal hole with an axis which coincides with the axis of the screw; one side of the expansion cone on the screw is provided with an annular slot, the depth of the annular slot is equal to the depths of the threads, and a sealing rubber ring is sleeved on the annular slot; and the nut is matched with a spring ring and a gasket. According to the novel expansion bolt, when the expansion bolt is used for screwing, the expansion bolt provided by the utility model is the same as a traditional expansion bolt, and when the expansion bolt is disassembled, the screw and the expansion cone can be separated and pulled out through an inner hexagonal screwing screw; the expansion sleeve and the expansion cone are embedded in a wall surface or the ground, so that subsequent construction cannot be influenced; and the arrangement of the sealing rubber ring can be used for preventing a thread connecting part of the expansion cone and the screw from being rusted by water, and the disassembly is easier. The novel expansion bolt has the advantages of compact structure and simple manufacturing process and is suitable for promotion and application.

Description

Upset bolt

Technical field

The utility model relates to a kind of EXPANSION ANCHOR BOLTS, a kind of upset bolt particularly, and waterproof is antirust can remove easily.

Background technique

EXPANSION ANCHOR BOLTS is as a kind of mounting and connection parts extensive use in daily construction, can conveniently realize installing, solid and reliable economic and practical enjoying great popularity, consumption applied widely is huge, multiplex in the building decoration link in completion later stage, since decorate have with trend substitute special, so some place just needs to remove after decoration has used a period of time, the EXPANSION ANCHOR BOLTS of before installing also will be removed thereupon, especially difficulty is torn in soundness and corrosion owing to EXPANSION ANCHOR BOLTS when removing open, not only waste time and energy, indivedual outstanding screw rods are also torn open not thorough, residual outstanding position not only affects next step construction that also affects attractive in appearance, also easily the people is caused injury.

The model utility content

Remove the difficult problem of difficulty in order to solve EXPANSION ANCHOR BOLTS, the utility model provides that a kind of upset bolt waterproof is antirust can remove easily.

The technical solution adopted in the utility model is: a kind of upset bolt, comprise screw rod and expansion sleeve, it is characterized in that expansion sleeve is enclosed within on the screw rod, nut and expansion cone have been threaded connection on the screw rod of expansion sleeve both sides, expansion sleeve is provided with opening, and screw rod is provided with the interior hexagonal hole that axis overlaps with screw axis with the termination of nut connecting end.

Expansion cone one side is provided with circular groove on the described screw rod, and cover has O-ring seal on the circular groove.

The degree of depth of described circular groove equates with height of thread.

Described nut is combined with spring ring and pad.

The utility model arranges interior hexagonal hole at screw rod, expansion cone is flexibly connected by screw thread and screw rod, identical with the conventional expanded bolt when screwing, when removing, screw nut or screw screw rod by interior six sides and can realize extracting screw rod and separating of expansion cone, expansion sleeve and expansion cone are embedded in metope or ground is inner, without outstanding position, do not affect follow-up construction, arranging of O-ring seal can also prevent expansion cone and the water inlet corrosion of screw flight joint, make dismounting easier, simple for structure, effect is remarkable, is suitable for applying.

Description of drawings

Fig. 1 is the utility model embodiment overall structure schematic diagram;

Fig. 2 is the utility model cross-sectional view.

Number in the figure title: 1 screw rod; 2 expansion sleeves; 3 expansion cones; 4 O-ring seals; 5 openings; 6 nuts; 7 spring rings; 8 pads; 9 interior hexagonal holes.

Embodiment

The utility model embodiment as shown in Figure 1 and Figure 2, this upset bolt is provided with screw rod 1 and expansion sleeve 2, expansion sleeve 2 is enclosed within on the screw rod 1, nut 6 and expansion cone 3 have been threaded connection on the expansion sleeve 2 both sides screw rods 1, be provided with opening 5 at expansion sleeve 2, the termination of screw rod 1 and nut 6 connecting ends is provided with the interior hexagonal hole 9 of axis and screw rod 1 dead in line; Expansion cone 3 one sides are provided with circular groove on the screw rod 1, and the degree of depth of circular groove equates with height of thread, and cover has O-ring seal 4 on the circular groove; Nut 6 is combined with spring ring 7 and pad 8; When screwing nut 6, installation can pass through interior hexagonal hole 9 standing screws 1, prevent that screw rod 1 from rotating, expansion cone 3 enters expansion sleeve 2, expansion sleeve 2 is in opening 5 places distending swelling, when removing, can screw rod 1 and separating of expansion cone 3 can be extracted by screwing the nut 6 that gets loose, can screw screw rod 1 by interior six sides and realize that screw rod 1 extracts with separating of expansion cone 3 as not extracting, expansion sleeve 2 and expansion cone 3 are embedded in metope or ground is inner, without outstanding position, do not affect follow-up construction, arranging of O-ring seal 4 can also prevent expansion cone 3 and the water inlet corrosion of screw rod 1 threaded connection place, make dismounting easier, simple for structure, preparation process is simple, effect is remarkable, is suitable for applying.

Claims

1. upset bolt, comprise screw rod (1) and expansion sleeve (2), it is characterized in that expansion sleeve (2) is enclosed within on the screw rod (1), nut (6) and expansion cone (3) have been threaded connection on expansion sleeve (2) the both sides screw rods (1), expansion sleeve (2) is provided with opening (5), and the termination of screw rod (1) and nut (6) connecting end is provided with the interior hexagonal hole (9) of axis and screw rod (1) dead in line.

2. upset bolt according to claim 1 is characterized in that upper expansion cone (3) one sides of described screw rod (1) are provided with circular groove, and cover has O-ring seal (4) on the circular groove.

3. upset bolt according to claim 2 is characterized in that the degree of depth of described circular groove equates with height of thread.

4. upset bolt according to claim 2 is characterized in that described nut (6) is combined with spring ring (7) and pad (8).