CN220101746U - Special-shaped bolt fastener - Google Patents

Abstract

The utility model discloses a special-shaped bolt fastener which comprises a first connecting piece, a second connecting piece inserted into the first connecting piece, a nut and a screw, wherein the first connecting piece and the second connecting piece are connected through screw threads, the nut is fixed at the top of the screw and is attached to the top end of the first connecting piece, the top of the first connecting piece is connected with a protective cover through a pressurizing mechanism, and the protective cover is sleeved outside the nut. This special-shaped bolt fastener, the protection casing can carry out comprehensive protection with the nut, can seal the protection casing bottom under sealed effect of filling up, avoids water to flow into the nut surface through the bottom clearance to reach comprehensive sealed effect, and under pressurizing mechanism's effect, can make the protection casing can be stable push down, can ensure that the protection casing is difficult for droing, and this kind of mode is when outdoor use, can play fine guard action, avoids taking place the dead problem of lock between nut and the connection object, plays fine result of use.

Description

Special-shaped bolt fastener

Technical Field

The utility model relates to the technical field of fasteners, in particular to a special-shaped bolt fastener.

Background

The bolt fastener is a mechanical part which is used for fastening connection and has extremely wide application, has wide application industries including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, molds, hydraulic pressure and the like, and is used on various machines, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments, articles and the like.

For example, chinese issued patent, publication No.: the special-shaped bolt fastener of CN218235785U solves the technical problems that the bolt can be reinforced by the clamping positioning piece to prevent the main structure of the bolt from loosening and shaking, but the clamping positioning piece is clamped at the bottom of the main structure of the bolt, so that the space of the bottom of the main structure of the bolt is occupied relatively; the bolt comprises a to-be-fixed piece and a bolt body, wherein the to-be-fixed piece is connected with the bolt body in a penetrating way, a nut is connected with the bottom end of the bolt body in a threaded way, a groove is formed in the surface of the bolt body, a rubber sleeve is connected with the groove in a clamping way, the rubber sleeve is connected with the through hole in a clamping way, and a gasket is connected with the top of the bolt body in a penetrating way.

The screw cap is generally exposed outside air when the bolt fastener is used, the screw cap is generally made of metal iron products, and when the bolt fastener is used outdoors, the screw cap is easily rusted due to weathering and rain erosion, so that the screw cap and a connecting object are locked, the screw cap is difficult to detach and take out, and the using effect of the existing bolt fastener is reduced.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the special-shaped bolt fastener provided by the utility model has the advantages that the nut can be comprehensively protected by arranging the protective cover, the sealing gasket and the pressurizing mechanism for combined use, the bottom of the protective cover can be sealed under the action of the sealing gasket, the water is prevented from flowing into the surface of the nut through a bottom gap, so that the comprehensive sealing effect is achieved, the protective cover can be stably pressed down under the action of the pressurizing mechanism, the protective cover is prevented from falling off easily, the protective cover can play a good protective role when the special-shaped bolt fastener is used outdoors, the problem of locking between the nut and a connecting object is avoided, the use effect is good, and the like, and the problems raised by the background technology are solved.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the special-shaped bolt fastener comprises a first connecting piece, a second connecting piece inserted into the first connecting piece, a nut and a screw rod, wherein the first connecting piece and the second connecting piece are connected through screw threads, the nut is fixed at the top of the screw rod and is attached to the top of the first connecting piece, the top of the first connecting piece is connected with a protective cover through a pressurizing mechanism, and the protective cover is sleeved outside the nut.

Preferably, a sealing gasket is fixed at the bottom end of the protective cover, and the sealing gasket is attached to the top of the first connecting piece.

Preferably, the pressurizing mechanism comprises a pressurizing plate, a movable column, a fixed column and a pressurizing spring, wherein the fixed column is fixed at the top end of the first connecting piece, the movable column is connected inside the fixed column through the pressurizing spring, the pressurizing plate is fixed at the top end of the movable column, and the pressurizing plate is correspondingly arranged at the top of the protective cover.

Preferably, a groove is formed in the top end of the protective cover, and the groove is arranged corresponding to the pressurizing plate.

Preferably, the connecting plate is fixed on the outer wall of the first connecting piece, the inserting rod penetrates through the connecting plate, the first jack is formed in the first connecting piece and the second connecting piece, the second jack corresponding to the first jack is formed in the screw, one end of the inserting rod is inserted into the first jack and the second jack, and the baffle is fixed at the other end of the inserting rod.

Preferably, the outer wall of the inserted link is wound with an inserting spring, one end of the inserting spring is connected with the baffle plate, and the other end of the inserting spring is connected with the connecting plate.

(III) beneficial effects

Compared with the prior art, the utility model has the following beneficial effects:

1. through setting up protection casing, sealed pad and pressurization mechanism combination use, the protection casing can be with the nut comprehensive protection, can seal the protection casing bottom under sealed effect of pad, avoid water to flow into the nut surface through the bottom clearance, thereby reach comprehensive sealed effect, and under pressurization mechanism's effect, can make the protection casing can be stable push down, can ensure that the protection casing is difficult for droing, this kind of mode is when outdoor use, can play fine guard action, avoid the nut to take place the dead problem of lock between the connection object, play fine result of use.

2. Through setting up inserted bar, first jack and second jack combination use, the inserted bar can insert inside first jack and the second jack to realize the anti-drop effect to the screw rod, the screw rod can be difficult for coming off with first connecting piece and second connecting piece, realizes further stability, has strengthened the connection stability of two connecting pieces.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

fig. 4 is a schematic view of the structure of the protective cover in the opened state.

In the figure: 1. a first connector; 2. a second connector; 311. a screw cap; 312. a screw; 313. a protective cover; 314. a sealing gasket; 315. a pressurizing plate; 316. a movable column; 317. fixing the column; 318. a pressurizing spring; 411. a connecting plate; 412. a rod; 413. a first jack; 414. a plug spring; 415. a baffle; 416. and a second jack.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, the special-shaped bolt fastener comprises a first connecting piece 1, a second connecting piece 2 inserted into the first connecting piece 1, a nut 311 and a screw 312, wherein the first connecting piece 1 and the second connecting piece 2 are in threaded connection through the screw 312, the nut 311 is fixed at the top of the screw 312 and is attached to the top end of the first connecting piece 1, the top of the first connecting piece 1 is connected with a protective cover 313 through a pressurizing mechanism, the protective cover 313 is sleeved outside the nut 311, the protective cover 313 can be sleeved with the nut 311, so that the purpose of good protection can be achieved, the surface of the nut 311 is ensured not to be contacted with water, the problem that the nut 311 is rusted is avoided, and the protection function is achieved. The protection casing 313 bottom mounting has sealed pad 314, and sealed pad 314 can be rubber material, and sealed pad 314 is laminated mutually with first connecting piece 1 top, and sealed pad 314 can be laminated with first connecting piece 1 top, realizes further sealed effect, reaches fine sealed effect.

The pressurizing mechanism comprises a pressurizing plate 315, a movable column 316, a fixed column 317 and a pressurizing spring 318, wherein the top end of the first connecting piece 1 is fixedly provided with the fixed column 317, the movable column 316 is connected inside the fixed column 317 through the pressurizing spring 318, the pressurizing plate 315 is fixedly arranged at the top end of the movable column 316, the pressurizing plate 315 is correspondingly arranged at the top of the protective cover 313, the pressurizing spring 318 is in a compressed state in an initial state, namely, after the pressurizing plate 315 is released, the movable column 316 and the pressurizing plate 315 can be pressed down under the elasticity of the pressurizing spring 318. The top end of the protective cover 313 is provided with a groove which is arranged corresponding to the pressurizing plate 315, and the pressurizing plate 315 can be inserted into the groove after being pressed down, so that the protective cover 313 can be prevented from falling off, and a good limiting purpose is achieved.

The connecting plate 411 is fixed on the outer wall of the first connecting piece 1, the inserting rod 412 penetrates through the connecting plate 411, the first inserting holes 413 are formed in the first connecting piece 1 and the second connecting piece 2, the second inserting holes 416 corresponding to the first inserting holes 413 are formed in the screw 312, one end of each inserting rod 412 is inserted into each of the first inserting holes 413 and the second inserting holes 416, the baffle 415 is fixed at the other end of each inserting rod, the inserting rods 412 can be inserted into the first inserting holes 413 and the second inserting holes 416, at the moment, the first connecting piece 1 and the second connecting piece 2 can be further limited, the screw 312 is prevented from falling off easily, and further fastening effects are achieved. The inserted link 412 outer wall winding has plug spring 414, and plug spring 414 one end is connected in baffle 415, the other end is connected in connecting plate 411, under the elasticity of plug spring 414, can guarantee that baffle 415 and inserted link 412 can be stable the resilience, ensure that inserted link 412 can not take place to drop, and this kind of connected mode is more stable.

Working principle: when the plug-in type connector is required to be used, the second connecting piece 2 is inserted into the first connecting piece 1, then the screw rod 312 is used for connecting the first connecting piece 1 with the second connecting piece 2 by rotating the screw cap 311, after the baffle 415 is loosened, the plug-in rod 412 can be driven to be inserted into the first jack 413 and the second jack 416 under the elastic reset action of the plug-in spring 414, the limiting purpose can be achieved, and the screw rod 312 is prevented from falling off from the first connecting piece 1 and the second connecting piece 2.

When the nut 311 is required to be protected, the protection cover 313 is sleeved on the outer wall of the nut 311, at this time, the sealing gasket 314 can be extruded and attached to the top of the first connecting piece 1, so that a good sealing effect is achieved, meanwhile, the pressing plate 315 is loosened, the movable column 316 and the pressing plate 315 can be pressed down under the elastic action of the pressing spring 318, the pressing plate 315 can be inserted into the groove, and the protection cover 313 is not easy to fall off.

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

Claims (4)

1. Profiled bolt fastener, including first connecting piece (1), insert in inside second connecting piece (2) of first connecting piece (1), nut (311) and screw rod (312), its characterized in that: the first connecting piece (1) is in threaded connection with the second connecting piece (2) through a screw (312), the screw cap (311) is fixed at the top of the screw (312) and is attached to the top end of the first connecting piece (1), the top of the first connecting piece (1) is connected with a protective cover (313) through a pressurizing mechanism, and the protective cover (313) is sleeved outside the screw cap (311);

a sealing gasket (314) is fixed at the bottom end of the protective cover (313), and the sealing gasket (314) is attached to the top of the first connecting piece (1);

the pressurizing mechanism comprises a pressurizing plate (315), a movable column (316), a fixed column (317) and a pressurizing spring (318), wherein the fixed column (317) is fixed at the top end of the first connecting piece (1), the movable column (316) is connected inside the fixed column (317) through the pressurizing spring (318), the pressurizing plate (315) is fixed at the top end of the movable column (316), and the pressurizing plate (315) is correspondingly arranged at the top of the protective cover (313).

2. The profiled bolt fastener according to claim 1, characterized in that: the top end of the protective cover (313) is provided with a groove which is arranged corresponding to the pressurizing plate (315).

3. The profiled bolt fastener according to claim 1, characterized in that: the connecting plate is characterized in that a connecting plate (411) is fixed on the outer wall of the first connecting piece (1), a plug rod (412) penetrates through the connecting plate (411), first jacks (413) are formed in the first connecting piece (1) and the second connecting piece (2), second jacks (416) corresponding to the first jacks (413) are formed in the screw (312), one ends of the plug rods (412) are inserted into the first jacks (413) and the second jacks (416), and baffle plates (415) are fixed at the other ends of the plug rods.

4. The profiled bolt fastener of claim 3, wherein: the outer wall of the inserted link (412) is wound with an inserting spring (414), one end of the inserting spring (414) is connected with the baffle plate (415), and the other end of the inserting spring is connected with the connecting plate (411).