CN211039311U

CN211039311U - Dismantle convenient novel expansion bolts

Info

Publication number: CN211039311U
Application number: CN201921548190.5U
Authority: CN
Inventors: 李宝彦
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-07-17
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a dismantle convenient novel expansion bolts, including nut and sleeve pipe. The nut is conical and is a conical nut, and a plurality of bosses are arranged on the conical nut. One end of the sleeve is provided with a plurality of expansion pieces which can be inserted into two adjacent bosses, so that the expansion pieces block the bosses and have a guiding function. The cone nut and the boss form an expansion nut, and the sleeve and the expansion sheet form an expansion pipe. The expansion pipe is additionally provided with the gasket to realize technical breakthrough, is mainly used for mounting and dismounting hollow pipe walls such as steel structures, aluminum alloy structures, stainless steel structures and the like, is particularly suitable for mounting and dismounting square pipes, angle steel, H-shaped steel, channel steel and composite plates, and is also suitable for mounting and dismounting cement masonry walls. After the common expansion bolt is installed on the masonry wall, the screw rod is exposed outside, potential safety hazards are brought, and the disassembly is difficult. The above disadvantages are overcome with the new expansion bolts. The detachable assembled building is particularly suitable for detachable assembled buildings, and the detachable assembled building is simple in design structure, convenient to disassemble and assemble, strong in fastening stress, attractive and practical.

Description

Dismantle convenient novel expansion bolts

The technical field is as follows: the utility model relates to a kind is for connecting the class fastener, is a dismantle convenient novel expansion bolts.

Background art: at present, the domestic common expansion bolt is mainly used for connecting concrete blocks and consists of an expansion sleeve, a hammer screw, a gasket, a spring pad and a nut. The defects that the connection of steel structures such as square pipes, round pipes and other hollow components can not be realized, the steel structures are difficult to take out after installation, a long section of threaded rod can be leaked from the wall surface, the potential safety hazard is brought, and the appearance of the wall surface is not attractive.

The invention content is as follows: the utility model discloses expansion bolts's purpose is exactly to overcome prior art's shortcoming, provides a dismantle convenient novel expansion bolts. Is characterized by a guiding function; locking by internal rotation; the strength is high; can be conveniently disassembled, etc.

In order to achieve the purpose, the invention provides a novel expansion bolt convenient to disassemble, which comprises a nut, a sleeve, a washer and a screw rod, wherein the nut is matched with threads in the screw rod, and the sleeve is sleeved on the screw rod. The novel expansion bolt convenient to disassemble comprises a nut and a sleeve. The nut is conical and is a conical nut, and a plurality of bosses are arranged on the conical nut. One end of the sleeve is provided with a plurality of expansion pieces, and the expansion pieces can be inserted into two adjacent bosses or the bosses can be inserted into openings of the two adjacent expansion pieces, so that the expansion pieces block the bosses and have a guiding function.

Furthermore, cone nut be the taper shape, boss and inflation piece evenly distributed just belong to clearance fit, boss and cone nut body coupling.

Furthermore, the taper nut, the boss and the expansion sheet are provided with chamfers or fillets and can also be provided with conicity.

Furthermore, a gasket is arranged at the other end of the sleeve, and the inner diameter of the gasket is matched with the inner diameter and the outer diameter of the sleeve.

Furthermore, the sleeve and the gasket are integrally connected or detachably combined and connected, one side of the gasket is provided with a chamfer or a fillet, and the gasket is provided with two platforms or a polygon consisting of more than two platforms for fixing a wrench.

Furthermore, the sleeve and the gasket are connected in a detachable and combined manner, two or more clamping grooves are formed in the sleeve, two or more clamping platforms are arranged on the gasket and inserted into the clamping grooves, and the clamping platforms and the clamping grooves are in clearance fit.

Furthermore, the sleeve and the gasket are connected in a detachable and combined mode, and knurling (or indentation) matching is arranged on the joint and connection part of the sleeve and the gasket, so that the gasket can block the sleeve and prevent the sleeve from rotating.

The novel expansion bolt convenient to disassemble is characterized in that the expansion bolt is inserted into a mounting component hole from the inside, the exposed surface is outside, the screw rod moves from the outside to the inside and then moves from the inside to the outside relative to the nut, the screw rod head is exposed outside, and the nut is arranged inside to realize internal rotation locking. The cone nut is provided with a plurality of bosses, and the cone nut and the bosses form an expansion nut. The sleeve is provided with a plurality of expansion sheets, and the sleeve and the expansion sheets form an expansion pipe. The expansion pipe is additionally provided with the gasket to realize technical breakthrough, is mainly used for mounting hollow pipe walls of steel structures, aluminum alloy structures, stainless steel structures and the like, and is particularly suitable for mounting square pipes, angle steel, H-shaped steel, channel steel and composite plates.

(Note: the "plurality" mentioned above means two or more).

Description of the drawings:

the following is further described with reference to the accompanying drawings and examples.

Fig. 1 is a schematic view of an expansion nut (1) of the novel expansion bolt convenient to disassemble.

FIG. 2 is a schematic view of the expansion nut (2) of the novel expansion bolt of the present invention with convenient disassembly

Fig. 3 is a schematic view of the expansion pipe (1) of the novel expansion bolt convenient to disassemble.

Fig. 4 is a schematic view of the expansion pipe (2) of the novel expansion bolt convenient to disassemble.

Fig. 5 is a schematic view of the expansion pipe (3) of the novel expansion bolt of the utility model, which is convenient to disassemble.

Fig. 6 is an installation schematic diagram of the novel expansion bolt convenient to disassemble.

Fig. 7 is a schematic structural view of the novel expansion bolt convenient to disassemble.

In the figure: 1-conical nut 2-boss 3-screw 4-expansion sheet 5-sleeve 6-washer 7-spring washer 9-neck 10-clamping table 11-chamfer 12-platform 14-component (1) 15-component (2) 20-taper 21-smooth curved surface transition

Wherein FIG. 7 is also taken as an abstract figure

The utility model discloses dismantle convenient novel expansion bolts and lie in overcoming prior art's shortcoming, provide a dismantle convenient novel expansion bolts, mainly used steel construction class, the installation of hollow pipe walls such as aluminum alloy structure class, stainless steel, the installation of specially adapted side pipe, angle steel, H shaped steel, channel-section steel and special composite board. (see fig. 6), the above-described taper nuts may each have a taper and a rounded curve transition.

The utility model relates to a dismantle convenient novel expansion bolts comprises expansion nut, expansion pipe, spring shim, screw rod (as figure 7).

The expansion nut is composed of a cone nut and a boss, and is characterized in that: the cone nut is provided with a plurality of bosses, the tail of the cone nut is provided with a chamfer or a fillet, and the cone nut is various in shape. The taper nut with the taper and the boss form an expansion nut (1) (as shown in figure 1), and the taper nut with the smooth curved surface transition and the boss form an expansion nut (2) (as shown in figure 2). (Note: the "plurality" means two or more)

The expansion pipe is composed of an expansion sheet and a sleeve (as shown in figure 4), or the expansion sheet, the sleeve and a gasket can be integrally connected or detachably combined and connected to form the expansion pipe (1) (as shown in figure 3) or the expansion pipe (3) (as shown in figure 5). The split-combined connection can be connected by the following methods (for example, welding, inserting, riveting, rolling, threading, expansion and other processes can be used). If the sleeve, the expansion sheet and the gasket are fixedly connected in a detachable and combined manner (for example, the sleeve, the expansion sheet and the gasket can be manufactured by welding, riveting, stamping, threading, expanding and other processes). If sleeve pipe and inflation piece body coupling, but sleeve pipe and retaining ring combination swing joint (if inlay, roll extrusion, block etc.), only be unfavorable for drawing the sleeve pipe, and then be unfavorable for dismantling, nevertheless right the utility model discloses become the essence influence inadequately, and hexagonal retaining ring and ordinary retaining ring (or gasket) function are the same with the effect and still play and block sleeve pipe pivoted effect.

The specific implementation mode is as follows:

as shown in the figure: only three connection methods are listed, and a plurality of combination connection methods are not listed.

The connection method 1: comprises an expansion nut (2), an expansion pipe (2), a gasket, a spring gasket and a screw rod.

The connection method 2: comprises an expansion nut (1), an expansion pipe (1), a spring gasket and a screw rod.

The connection method 3: comprises an expansion nut (1), an expansion pipe (3), a spring gasket and a screw (as shown in figure 7).

Taking the connection method 3 as an example only: as shown in fig. 7, and is embodied in conjunction with the installation schematic (fig. 6).

The cone nut (1) is integrally connected with the boss (2), and the sleeve (5), the expansion sheet (4) and the gasket (6) are movably connected in a split combination way (for example, the process methods such as insert and the like can be used). The taper of the conical nut (1) is basically the same as or different from that of the expansion sheet (4), and the expansion sheet (4) can be provided with round corners or chamfers and can also be embossed or protruded. Firstly, a clamping table (10) on the gasket (6) is inserted into a clamping groove (9) on the sleeve (5).

The guiding function is as follows:

4 equipartitions in this design just insert 4 equipartitions and have tapering inflation piece (4) and have in 4 equipartitions and have tapering boss (2), boss (2) and inflation piece (4) belong to clearance fit, and the top edge that the topside of boss (2) is higher than inflation piece (4) keeps flat, blocks inflation piece (4). The expansion nut (1) and the expansion pipe (3) are coaxially guided, and do linear reciprocating motion along the opening of the expansion sheet (4). If the expansion pipe (3) does not rotate, the expansion nut (1) cannot rotate, and can only do linear reciprocating motion along the expansion sheet (4) but cannot rotate, except the guide range beyond the expansion sheet (4).

Pre-pressing and fixing:

make corresponding hole to component side pipe (14), component composite sheet (15) earlier, adjusted and dismantled convenient novel expansion bolts, put into the component hole to it, put the platform of packing ring (6) with the opening of spanner on, hold the spanner motionless with the left hand, during right hand sleeve pipe spanner inserted hexagon flange screw rod (3), with certain power pre-compaction sleeve pipe spanner of right hand, locking hexagon flange screw rod (3), realized the installation of pre-compaction fixed component.

Internal rotation locking:

after the component and the expansion bolt are pre-pressed and fixed, the right hand is screwed into a sleeve spanner on the rotary hexagonal flange screw (3), and the expansion nut (1) does not rotate because the expansion pipe (3) does not rotate. Namely a hexagonal flange screw (3). The hexagonal flange screw (3) is supposed to rotate reversely relative to the expansion nut (1) without rotating. And because the expansion nut (1) is arranged in the component, the expansion nut is locked by internal rotation.

The strength is large:

the expansion nut (1) and the expansion pipe (3) are high in matching precision, the machining process is not complex, and due to the fact that the boss (2) in the expansion nut (1) is provided with the taper and the tail portion is provided with the round angle or the chamfer angle. The main functions of the taper and the chamfer are to lock or insert the components (14) and (15) in holes conveniently and smoothly and ensure the matching coaxiality of the components (14) and (15) in the holes. But also can increase the length of the screw thread of the expansion nut (1), increase the stress intensity and protect the nut. Therefore, the strength is high.

Can be conveniently disassembled:

after the installation is finished, the novel expansion bolt is required to be disassembled.

And the hexagonal flange screw (3) can be screwed in and out. After the hexagonal flange screw rod (3) is screwed out for a certain distance, the gasket (6) on the sleeve is pried by a straight screwdriver, the hexagonal platform on the gasket (6) is clamped by a spanner, the hexagonal flange screw rod (3) is screwed out gradually, and the gasket (6) and the sleeve (5) are in clearance fit with the clamping table (10) through the clamping groove (9), so that the gasket (6) can be pulled out, and the component (15) can be moved out.

The method comprises the following steps: after the component (15) is moved out, the expansion nut (1) is propped against the hexagonal flange screw (3) to enable the expansion nut (1) to be separated from the expansion sheet (4) and fall into the component (14), then the sleeve (5) is pulled out by force through a pliers, under the action of pulling force, the hole of the component (14) blocks the expansion sheet (4), the expansion sheet (4) is enabled to deform, contract and reset, and the sleeve (5) is pulled out.

The method 2 comprises the following steps: after the component (15) is removed, the sleeve (5) is slightly hammered inwards by a hammer, so that the sleeve (5) and the expansion nut (1) fall into the component (14), and the disassembly can be completed by repeating the above operation processes for several times.

This completes the embodiment.

Because the expansion bolt is easy to disassemble, the expansion bolt is a novel expansion bolt convenient to disassemble.

It should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a dismantle convenient novel expansion bolts which characterized in that: including nut and sleeve pipe, the nut be the toper, be a cone nut, be equipped with a plurality of boss on the cone nut, sleeve pipe one end set up a plurality of expansion piece, the boss can insert in the opening of two adjacent expansion pieces, make the expansion piece block the boss and have the direction function.

2. The novel expansion bolt convenient to disassemble as claimed in claim 1, wherein the taper nut is conical, the boss and the expansion sheet are uniformly distributed and are in clearance fit, and the boss and the taper nut are integrally connected.

3. The novel expansion bolt convenient to disassemble as claimed in claim 2, wherein the taper nut, the boss and the expansion sheet have chamfer or fillet and also have taper.

4. A novel expansion bolt as claimed in any one of claims 1 to 3 wherein the other end of the sleeve is fitted with a washer having an internal diameter matching the internal and external diameters of the sleeve.

5. A novel expansion bolt convenient to disassemble according to claim 4, characterized in that one side of the washer is provided with a chamfer or fillet, the washer is provided with two platforms or a polygon consisting of more than two platforms, and the washer is connected with the sleeve in an integrated or detachable manner.

6. A novel expansion bolt convenient to disassemble and assemble as claimed in claim 5, wherein the sleeve is detachably combined and connected with the washer, two or more than two clamping grooves are formed in the sleeve, two or more than two clamping platforms are formed in the washer, the clamping platforms are inserted into the clamping grooves, and the clamping platforms and the clamping grooves are in clearance fit.

7. The novel expansion bolt convenient to disassemble and assemble as claimed in claim 5, wherein the sleeve is detachably combined and connected with the washer, and knurling or indentation is arranged on the joint of the sleeve and the washer to match with each other, so that the washer can block the sleeve and prevent the sleeve from rotating.