CN217234064U

CN217234064U - Double-nut fastening bolt

Info

Publication number: CN217234064U
Application number: CN202220572300.7U
Authority: CN
Inventors: 杨音
Original assignee: Xingping Qinling Machinery Equipment Co ltd
Current assignee: Xingping Qinling Machinery Equipment Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-08-19
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a two nut fastening bolt, including bolt post, spliced pole, bolt head, first nut and second nut, the upper end fixedly connected with spliced pole of bolt post, the upper end of spliced pole is connected with the bolt head through adjustment mechanism, it has first nut and second nut to twist to close on the bolt post, be provided with nut anticreep subassembly between first nut and the second nut. This two nut fastening bolt, through being provided with nut anticreep subassembly, twist back on the bolt post at first nut, will support the board cover to establish the tail end at the bolt post, twist the bolt post with the second nut on, until the spring is compressed, the resilience force of spring promotes first nut and second nut this moment, thereby first nut and the second nut that makes can not loosen and take off, thereby avoid need twist the second nut too deeply on the bolt post, thereby improve this two nut fastening bolt's the installation and the efficiency of dismantling.

Description

Double-nut fastening bolt

Technical Field

The utility model relates to a bolt technical field specifically is a two nut fastening bolt.

Background

When the double nuts are used for fastening the bolt, the two nuts are screwed on the bolt, and after the two nuts are screwed, the axial force generated between the nuts increases the friction force between the nut teeth and the bolt teeth so as to prevent the nut from loosening automatically;

when present traditional two nut fastening bolt used, when the nut need twist deeply on the bolt, the second nut also need twist to the position of closing with first nut mutual offset this moment to it is comparatively time-consuming and laboursome when twisting and dismantling at the nut.

Aiming at the problems, the novel design is carried out on the basis of the original double-nut fastening bolt.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two nut fastening bolt to when solving the present traditional two nut fastening bolt that proposes in the above-mentioned background art and using, need twist when darker on the bolt as the nut, the second nut also need twist to reach the position of closing with first nut each other this moment, thereby comparatively waste time and energy the problem when the nut is twisted and is dismantled.

In order to achieve the above purpose, the utility model provides a following technical scheme: a double-nut fastening bolt comprises a bolt column, a connecting column, a bolt head, a first nut and a second nut, wherein the upper end of the bolt column is fixedly connected with the connecting column, the upper end of the connecting column is connected with the bolt head through an adjusting mechanism, the first nut and the second nut are screwed on the bolt column, and a nut anti-falling assembly is arranged between the first nut and the second nut;

the nut anticreep subassembly is including supporting the plywood, it is provided with two sets ofly to support the plywood cover and establish at the middle part of bolt post, and is two sets of support fixedly connected with telescopic link between the plywood, the outside cover of telescopic link is equipped with the spring, the upper and lower both ends of spring are two sets of upper and lower supporting plywood fixed connection respectively, and are two sets of from top to bottom support the plywood respectively with first nut and second nut each other support and close.

Preferably, the upper and lower two sets of keep away from the one side surface bonding of telescopic link to the plywood have the rubber slipmat, upper and lower two sets of rubber slipmat closes with first nut and second nut are supported each other respectively.

Preferably, the adjusting mechanism comprises an extension rod, the extension rod is inserted into the upper end of the connecting column, a jack matched with the extension rod is formed in the middle of the connecting column, the upper end of the extension rod is fixedly connected with a bolt head, an inner hexagon bolt is rotatably connected to the middle of the extension rod, the lower end of the inner hexagon bolt is in threaded connection with the middle of the bolt column, and a threaded hole matched with the inner hexagon bolt is formed in the middle of the bolt column.

Preferably, the outer side surface of the lower end of the extension rod is fixedly connected with a limiting clamping block, the outer side of the connecting column is provided with a limiting sliding groove in which the limiting clamping blocks are matched with each other, and the limiting clamping block is clamped in the limiting sliding groove.

Preferably, the lower end of the bolt head and the upper end of the first nut are fixedly connected with clamping anti-falling plates.

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

1. through the nut anti-falling assembly, after a first nut is screwed into a bolt column, the abutting plate is sleeved at the tail end of the bolt column, a second nut is screwed into the bolt column until the spring is compressed, and the resilience force of the spring pushes the first nut and the second nut, so that the first nut and the second nut cannot be loosened, the second nut is prevented from being screwed too deeply into the bolt column, and the mounting and dismounting efficiency of the double-nut fastening bolt is improved;

2. through being provided with adjustment mechanism, through twisting hexagonal socket head cap bolt, the extension rod that makes outwards stretches out in the spliced pole, and then improves the whole length of bolt, improves the practicality and the suitability of this bolt.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic sectional view of the front view of the structure of the present invention;

fig. 3 is a schematic perspective view of the bolt column, the connecting column, the insertion hole and the limiting chute of the present invention;

fig. 4 is a schematic perspective view of the nut anti-drop assembly of the present invention;

fig. 5 is the perspective structure schematic diagram of the bolt head, the clamping anti-drop plate, the extension rod, the hexagon socket head cap screw and the limiting fixture block of the utility model.

In the figure: 1. a bolt column; 2. connecting columns; 3. a bolt head; 4. a first nut; 5. a second nut; 611. Abutting the plate; 612. a telescopic rod; 613. a spring; 614. a rubber non-slip mat; 711. an extension pole; 712. A jack; 713. a hexagon socket head cap screw; 714. a limiting clamping block; 715. a limiting chute; 8. and clamping the anti-drop plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1, fig. 2 and fig. 4, the present invention provides a technical solution: a double-nut fastening bolt comprises a bolt column 1, a connecting column 2, a bolt head 3, a first nut 4 and a second nut 5, wherein in order to improve the speed of installing and disassembling the nuts on the double-nut fastening bolt, the upper end of the bolt column 1 is fixedly connected with the connecting column 2, the upper end of the connecting column 2 is connected with the bolt head 3 through an adjusting mechanism, the bolt column 1 is screwed with the first nut 4 and the second nut 5, a nut anti-disengaging assembly is arranged between the first nut 4 and the second nut 5 and comprises two groups of abutting plates 611, the two groups of abutting plates 611 are arranged, the abutting plates 611 are sleeved at the middle part of the bolt column 1, a telescopic rod 612 is fixedly connected between the two groups of abutting plates 611, a spring 613 is sleeved outside the telescopic rod 612, the upper end and the lower end of the spring 613 are respectively fixedly connected with the upper group of abutting plates 611 and the lower group of abutting plates 611 are respectively abutted with the first nut 4 and the second nut 5, after the first nut 4 is screwed into the bolt column 1, the abutting plate 611 is sleeved on the tail end of the bolt column 1, after the second nut 5 is screwed onto the stud stub 1 until the spring 613 is compressed, at which time the resilient force of the spring 613 pushes the first nut 4 and the second nut 5, so that the first nut 4 and the second nut 5 are not loosened, thereby avoiding the need to screw the second nut 5 too deeply into the bolt stud 1, thereby improving the efficiency of the installation and disassembly of the double-nut fastening bolt, the surfaces of one side of the upper and lower sets of abutting plates 611 far away from the telescopic rod 612 are adhered with rubber anti-skid pads 614, the upper and lower sets of rubber anti-skid pads 614 are abutted with the first nut 4 and the second nut 5 respectively, and are abutted with the first nut 4 and the second nut 5 through the rubber anti-skid pads 614, thereby further prevent that first nut 4 and second nut 5 from taking place to rotate, reach the effect of anticreep.

Referring to fig. 1, 2, 3 and 5, in order to adjust the length of the bolt, the adjusting mechanism includes an extension rod 711, an extension rod 711 is inserted into the upper end of the connecting column 2, a jack 712 matching with the extension rod 711 is formed in the middle of the connecting column 2, the upper end of the extension rod 711 is fixedly connected with the bolt head 3, the middle of the extension rod 711 is rotatably connected with an inner hexagon bolt 713, the lower end of the inner hexagon bolt 713 is connected with the middle of the bolt column 1 through a screw, the middle of the bolt column 1 is provided with a threaded hole matching with the inner hexagon bolt 713, the extension rod 711 is extended out of the connecting column 2 by screwing the inner hexagon bolt 713, so as to improve the overall length of the bolt and improve the practicability and applicability of the bolt, a limiting fixture block 714 is fixedly connected to the outer surface of the lower end of the extension rod 711, a limiting chute 715 matching with the limiting fixture block 714 is formed on the outer side of the connecting column 2, the limit locking block 714 is engaged with the limit sliding groove 715, so that when the hexagon socket screw 713 is screwed, the extension bar 711 is prevented from rotating in the insertion hole 712, and the extension bar 711 is prevented from being separated from the insertion hole 712 by the limit sliding groove 715.

Referring to fig. 1 and 2, in order to improve the firmness of the double-nut fastening bolt in fixing an object, the lower end of the bolt head 3 and the upper end of the first nut 4 are both fixedly connected with clamping anti-drop plates 8, and the fixed object is completely clamped by the two groups of clamping anti-drop plates 8, so that the firmness in fixing is improved.

The working principle is as follows: firstly, the length of an object is fixed according to the requirement, the extension rod 711 extends outwards from the connecting column 2 by screwing the hexagon socket head cap screw 713, further improving the overall length of the bolt, enabling the bolt column 1 and the connecting column 2 to penetrate through objects to be fixed, the first nut 4 is screwed in the bolt column 1 until the clamping anti-drop plate 8 on the first nut 4 and the clamping anti-drop plate 8 on the bolt column 1 completely clamp and fix the object, the abutting plate 611 is sleeved on the tail end of the bolt column 1, after the second nut 5 is screwed onto the stud stub 1 until the spring 613 is compressed, at which point the resilient force of the spring 613 pushes the first nut 4 and the second nut 5, so that the first nut 4 and the second nut 5 are not loosened, which is the working process of the whole device, and those not described in detail in this specification are well within the skill of those in the art.

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 two nut fastening bolt, includes bolt post (1), spliced pole (2), bolt head (3), first nut (4) and second nut (5), its characterized in that: the upper end of the bolt column (1) is fixedly connected with a connecting column (2), the upper end of the connecting column (2) is connected with a bolt head (3) through an adjusting mechanism, a first nut (4) and a second nut (5) are screwed on the bolt column (1), and a nut anti-falling assembly is arranged between the first nut (4) and the second nut (5);

nut anticreep subassembly is including supporting plywood (611), it is provided with two sets ofly to support plywood (611), it establishes at the middle part of bolt post (1) to support plywood (611), and is two sets of support fixedly connected with telescopic link (612) between plywood (611), the outside cover of telescopic link (612) is equipped with spring (613), the upper and lower both ends of spring (613) respectively with upper and lower two sets of plywood (611) fixed connection that supports, upper and lower two sets of support plywood (611) respectively with first nut (4) and second nut (5) each other support the closure.

2. A double nut fastening bolt as defined in claim 1 wherein: rubber anti-skidding pads (614) are bonded on the surfaces of the upper and lower groups of abutting plates (611) far away from one side of the telescopic rod (612), and the upper and lower groups of rubber anti-skidding pads (614) are abutted to the first nut (4) and the second nut (5) respectively.

3. A double nut fastening bolt according to claim 1, characterized in that: the adjusting mechanism comprises an extension rod (711), the upper end of the connecting column (2) is inserted with the extension rod (711), the middle of the connecting column (2) is provided with a jack (712) matched with the extension rod (711), the upper end of the extension rod (711) is fixedly connected with the bolt head (3), the middle of the extension rod (711) is rotatably connected with an inner hexagon bolt (713), the lower end of the inner hexagon bolt (713) is connected with the middle of the bolt column (1) through threads, and the middle of the bolt column (1) is provided with a threaded hole matched with the inner hexagon bolt (713).

4. A double nut fastening bolt according to claim 3, characterized in that: the outer side surface of the lower end of the extension rod (711) is fixedly connected with a limiting clamping block (714), the outer side of the connecting column (2) is provided with a limiting sliding groove (715) with the limiting clamping block (714) matched with each other, and the limiting clamping block (714) is clamped in the limiting sliding groove (715).

5. A double nut fastening bolt according to claim 1, characterized in that: the lower end of the bolt head (3) and the upper end of the first nut (4) are fixedly connected with clamping anti-falling plates (8).