CN211525285U

CN211525285U - Novel unsmooth self-adaptation expansion bolts

Info

Publication number: CN211525285U
Application number: CN202020062118.8U
Authority: CN
Inventors: 钱春芳
Original assignee: Shenzhen Jianhui Hardware Products Co ltd
Current assignee: Shenzhen Jianhui Hardware Products Co ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-09-18
Anticipated expiration: 2030-01-13

Abstract

The utility model discloses a novel unsmooth self-adaptation expansion bolts, which comprises an outer cover, the movable hole has all been seted up to the both sides of overcoat, the inner chamber swing joint in movable hole has the fixture block, one side fixedly connected with contact piece of fixture block, the bottom threaded connection of overcoat has the threaded rod, bearing swing joint has the landing leg at the top of threaded rod through pivot swing joint, the surface of landing leg has the pulley through pivot swing joint, the pulley is located between two contact pieces. The utility model discloses a place the overcoat in the hole of having beaten in advance, then rotatory threaded rod, the threaded rod drives landing leg and pulley motion, and the pulley moves between two contact blocks to extrude contact block and fixture block, the fixture block is from the inner chamber of activity hole outwards moving, thereby with the hole joint, it is higher to the requirement of hole when the fastening to have solved current expansion bolts, moreover relatively poor to the adaptability of hole, thereby bring inconvenient problem for the use.

Description

Novel unsmooth self-adaptation expansion bolts

Technical Field

The utility model relates to an expansion bolts technical field specifically is a novel unsmooth self-adaptation expansion bolts.

Background

The fixing principle of the expansion screw is that the wedge inclination is utilized to promote expansion to generate friction bond force, so that the fixing effect is achieved, one end of the screw is provided with a thread, the other end of the screw is provided with a taper, a steel sheet is wrapped outside the screw, a plurality of notches are arranged on one half of an iron sheet cylinder, the steel sheet cylinder and the notches are plugged into a hole drilled in a wall together, then a nut is locked, the nut pulls the screw outwards to pull the taper into the steel sheet cylinder, and the steel sheet cylinder is expanded and is tightly fixed on the wall.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel unsmooth self-adaptation expansion bolts possesses strong adaptability's advantage, has solved current expansion bolts and has had higher to the requirement of hole when the fastening, and is relatively poor to the adaptability of hole moreover to the problem of inconvenience is brought for the use.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel unsmooth self-adaptation expansion bolts, includes the overcoat, the movable hole has all been seted up to the both sides of overcoat, the inner chamber swing joint in movable hole has the fixture block, one side fixedly connected with contact block of fixture block, the bottom threaded connection of overcoat has the threaded rod, bearing swing joint has the landing leg in the top of threaded rod, the surface of landing leg has the pulley through pivot swing joint, the pulley is located between two contact blocks.

Preferably, the top of the inner cavity of the outer sleeve is fixedly connected with a limiting plate, the inner cavity of the limiting plate is connected with a limiting rod in a sliding mode, and the bottom of the limiting rod is fixedly connected with the contact block.

Preferably, the sliding grooves are formed in the two sides of the inner cavity of the limiting plate, the inner cavity of each sliding groove is connected with a sliding block in a sliding mode, and one side, far away from the inner cavity of each sliding groove, of each sliding block is fixedly connected with the limiting rod.

Preferably, the bottom of threaded rod fixedly connected with carousel, the top of overcoat is the arc.

Preferably, the fixture block is in sliding connection with an inner cavity of the movable hole, and the contact block is triangular.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a place the overcoat in the hole of having beaten in advance, then rotatory threaded rod, the threaded rod drives landing leg and pulley motion, and the pulley moves between two contact blocks to extrude contact block and fixture block, the fixture block is from the inner chamber of activity hole outwards moving, thereby with the hole joint, it is higher to the requirement of hole when the fastening to have solved current expansion bolts, moreover relatively poor to the adaptability of hole, thereby bring inconvenient problem for the use.

2. The utility model discloses a set up spout and slider, played the spacing effect to the gag lever post.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the outer cover of the present invention;

fig. 3 is the utility model discloses the limiting plate looks sideways at the structural sketch map.

In the figure: 1. a jacket; 2. a movable hole; 3. a clamping block; 4. a contact block; 5. a threaded rod; 6. a support leg; 7. a pulley; 8. a limiting plate; 9. a limiting rod; 10. a chute; 11. a slide block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model discloses an overcoat 1, activity hole 2, fixture block 3, contact block 4, threaded rod 5, landing leg 6, pulley 7, limiting plate 8, gag lever post 9,

spout

10 and 11 parts of slider are the parts that universal standard spare or technical field personnel know, and its structure and principle all can learn through the technical manual or learn through conventional experimental method for this technical staff.

Referring to fig. 1-3, a novel concave-convex self-adaptive expansion bolt comprises an outer sleeve 1, wherein both sides of the outer sleeve 1 are respectively provided with a movable hole 2, the inner cavity of the movable hole 2 is movably connected with a clamping block 3, one side of the clamping block 3 is fixedly connected with a contact block 4, the top of the inner cavity of the outer sleeve 1 is fixedly connected with a limiting plate 8, the inner cavity of the limiting plate 8 is slidably connected with a limiting rod 9, the bottom of the limiting rod 9 is fixedly connected with the contact block 4, both sides of the inner cavity of the limiting plate 8 are respectively provided with a sliding groove 10, the inner cavity of the sliding groove 10 is slidably connected with a sliding block 11, one side of the sliding block 11 away from the inner cavity of the sliding groove 10 is fixedly connected with the limiting rod 9, the clamping block 3 is slidably connected with the inner cavity of the movable hole 2, the contact block 4 is triangular, the bottom of the outer, the surface of landing leg 6 has pulley 7 through pivot swing joint, pulley 7 is located between two contact blocks 4, through placing overcoat 1 in the hole of beating in advance, then rotatory threaded rod 5, threaded rod 5 drives landing leg 6 and pulley 7 motion, pulley 7 moves between two contact blocks 4, thereby extrude contact block 4 and fixture block 3, fixture block 3 is from the inside chamber of activity hole 2 outwards moving, thereby with the hole joint, it is higher to the requirement in hole when the fastening to have solved current expansion bolts, and relatively poor to the adaptability of hole, thereby bring inconvenient problem for the use.

During the use, through placing overcoat 1 in the hole of beating in advance, then rotatory threaded rod 5, threaded rod 5 drives landing leg 6 and pulley 7 motion, and pulley 7 moves between two contact blocks 4 to extrude contact block 4 and fixture block 3, fixture block 3 from the inside chamber of activity hole 2 outwards movement, thereby with the hole joint.

The standard parts used in the present application document can be purchased from the market, and can be customized according to the description of the specification and the accompanying drawings, the specific connection mode of each part adopts the conventional means of mature bolt, rivet, welding and the like in the prior art, and the machines, parts and equipment adopt the conventional models in the prior art, so the detailed explanation of the control mode and the circuit connection is not needed in the present application.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel unsmooth self-adaptation expansion bolts, includes overcoat (1), its characterized in that: activity hole (2) have all been seted up to the both sides of overcoat (1), the inner chamber swing joint of activity hole (2) has fixture block (3), one side fixedly connected with contact block (4) of fixture block (3), the bottom threaded connection of overcoat (1) has threaded rod (5), there is landing leg (6) at the top of threaded rod (5) through bearing swing joint, there is pulley (7) on the surface of landing leg (6) through pivot swing joint, pulley (7) are located between two contact blocks (4).

2. The novel concave-convex self-adaptive expansion bolt as claimed in claim 1, wherein: the top fixedly connected with limiting plate (8) of overcoat (1) inner chamber, the inner chamber sliding connection of limiting plate (8) has gag lever post (9), the bottom and contact block (4) fixed connection of gag lever post (9).

3. The novel concave-convex self-adaptive expansion bolt as claimed in claim 2, wherein: the limiting plate is characterized in that sliding grooves (10) are formed in the two sides of the inner cavity of the limiting plate (8), sliding blocks (11) are connected to the inner cavity of the sliding grooves (10) in a sliding mode, and one sides, far away from the inner cavity of the sliding grooves (10), of the sliding blocks (11) are fixedly connected with the limiting rods (9).

4. The novel concave-convex self-adaptive expansion bolt as claimed in claim 1, wherein: the bottom fixedly connected with carousel of threaded rod (5), the top of overcoat (1) is the arc.

5. The novel concave-convex self-adaptive expansion bolt as claimed in claim 1, wherein: the fixture block (3) is in sliding connection with the inner cavity of the movable hole (2), and the contact block (4) is triangular.