CN212177616U

CN212177616U - Hidden screw fastener

Info

Publication number: CN212177616U
Application number: CN201821832373.5U
Authority: CN
Inventors: 孙鹏
Original assignee: Tianjin Century Leipeng Technology Co ltd
Current assignee: Tianjin Century Leipeng Technology Co ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2020-12-18
Anticipated expiration: 2030-08-28

Abstract

The utility model discloses a hidden screw fastener, including screw post and nut, the welding of screw post top has the nut, the protection casing is installed in the nut outside, and the nut is located the protection casing inner chamber, protection casing top movable mounting has the lid, the pickproof lock is installed to lid one side, pickproof lock inner chamber bottom movable mounting has the lock core, special-shaped lockhole has been seted up to the lock core inner chamber, the welding of lock core bottom one side has the gim peg, the draw-in groove has been seted up to protection casing a lateral wall. The utility model discloses a nut cage cover can avoid the nut to expose in the middle of the inner chamber in the outer end with the protection casing, so not only rust easily and expose and influence pleasing to the eye outside, setting up of pickproof lock makes the screw have the theftproof function, avoids the lid accident to open like this and exposes the nut to influence pleasing to the eye and rust easily, and more importantly avoids someone to open on purpose and unscrew the screw and steal by the fixture spare.

Description

Hidden screw fastener

Technical Field

The utility model relates to a fastener, in particular to hidden screw fastener.

Background

A screw is a common fixing part, which is commonly used in machinery, electrical appliances, buildings, etc., and is generally made of metal or plastic, and is cylindrical, and grooves with concave and convex surfaces engraved thereon are called threads. The primary function of the screw is to engage two objects or to fix the position of an object.

However, the nut on the top of the screw-fixing member is exposed to the outside, which not only affects the beauty of the fixed member but also easily rusts, and the nut is easily unscrewed to allow someone to intentionally steal the fixed member. To this end, we propose a concealed screw fastener.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a hidden screw fastener, cover the nut cage through the protection casing can avoid the nut to expose in the middle of the inner chamber in the outer end, not only rust easily and expose outside influence pleasing to the eye like this, the setting up of pickproof lock makes the screw have the theftproof function, avoid the lid accident to open like this and expose the nut and influence pleasing to the eye and rust easily, more mainly avoid someone to open on purpose and unscrew the screw and steal by the fixed object spare, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a hidden screw fastener, includes screw post and nut, the welding of screw post top has the nut, the protection casing is installed in the nut outside, and the nut is located the protection casing inner chamber, protection casing top movable mounting has the lid, the pickproof lock is installed to lid one side, pickproof lock inner chamber bottom movable mounting has the lock core, special-shaped lockhole has been seted up to the lock core inner chamber, the welding of lock core bottom one side has the gim peg, the draw-in groove has been seted up to protection casing lateral wall.

Furthermore, the bottom end of the outer side wall of the protective cover is provided with decorative petals.

Further, the top of the two sides of the screw column is welded with a sliding block, the sliding block is located in the inner cavity of the protective cover, a sliding groove is fixedly formed in the outer side wall of the top of the screw column, and the sliding block is located in the inner cavity of the sliding groove.

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

1. the protection casing is installed in the outside of nut, and the nut is located the protection casing inner chamber in the middle of, and the protection casing is run through on the top of screw post, and the lid is installed at the top of protection casing, so cover the nut cage can avoid the nut to expose in the middle of the protection casing in the outer end, not only rust easily and expose and influence pleasing to the eye in the outside like this, and the lateral wall bottom of protection casing is installed and is decorated the petal, decorates the petal and accompanies in the circular protection casing outside, has added the pleasing to the.

2. One side of the cover is provided with an anti-theft lock, the inner cavity of the anti-theft lock is movably provided with a lock cylinder, the inner cavity of the lock cylinder is provided with a special-shaped lock hole, one side of the bottom end of the lock cylinder is welded with a fixed bolt, the side wall of the protective cover, which is positioned on the anti-theft lock, is provided with a clamping groove with a sunken inner cavity, when the cover is covered, the key with the shape matched with the special-shaped lock hole is inserted into the inner cavity of the special-shaped lock hole, then the lock core is rotated to make the fixed bolt rotate to the clamping groove at one side of the protective cover, then the key is pulled out, thus, the cover is fixed at the top end of the protective cover, thereby avoiding the influence on the appearance and the easy rusting caused by the exposed nut when the cover is accidentally opened, and more importantly, avoiding the stealing of the fixed object by intentionally opening the unscrewed screw, and the special-shaped lock hole improves the anti-theft effect, and the anti-theft lock enables the screw to have the anti-theft function, so that the safety of the fixed object is improved.

3. The top of screw post runs through the protection casing inner chamber, and the top both sides pass through the slider slip to be fixed at the spout inner chamber, even someone rotates the protection casing on purpose and can not drive the screw and rotate like this to cause the screw not hard up, improve the theftproof effect once more.

Drawings

Fig. 1 is a schematic view of the overall structure of a hidden screw fastener of the present invention.

Fig. 2 is a schematic view of the top view structure of the protective cover of the concealed screw fastener of the present invention.

Fig. 3 is a schematic view of the anti-theft lock using a hidden screw fastener of the present invention.

In the figure: 1. a screw post; 2. a nut; 3. a protective cover; 4. a cover; 5. an anti-theft lock; 6. a lock cylinder; 7. a fixing bolt; 8. a card slot; 9. decorating petals; 10. a chute; 11. a slider; 12. a special-shaped lock hole.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a hidden screw fastener, includes screw post 1 and nut 2, the welding of 1 top of screw post has nut 2, protection casing 3 is installed in the 2 outsides of nut, and nut 2 is located 3 inner chambers of protection casing, 3 top movable mounting of protection casing have lid 4, pickproof lock 5 is installed to lid 4 one side, 5 inner chamber bottom movable mounting of pickproof lock have lock core 6, special-shaped lockhole 12 has been seted up to 6 inner chambers of lock core, the welding of 6 bottom one side of lock core has gim peg 7, draw-in groove 8 has been seted up to 3 a lateral wall of protection casing.

In the embodiment, as shown in fig. 1, 2 and 3, the protective cover 3 covers the screw cap 2 in the inner cavity to prevent the screw cap 2 from being exposed at the outer end, so that the screw cap 2 is easy to rust and exposed outside to affect the appearance, the anti-theft lock 5 is arranged to enable the screw to have an anti-theft function, so that the cover 4 is prevented from being accidentally opened to expose the screw cap 2 to affect the appearance and be easy to rust, and more importantly, a person is prevented from intentionally opening and unscrewing the screw to steal a fixed object.

Wherein, the bottom end of the outer side wall of the protective cover 3 is provided with decorative petals 9.

In this embodiment, as shown in fig. 2, the decorative petals 9 accompany the outside of the circular protection cover 3, which adds to the aesthetic effect of the appearance of the protection cover 3.

Wherein, 1 both sides top welding of screw post has slider 11, and slider 11 is located the 3 inner chambers of protection casing, 1 top lateral wall of screw post is fixed and is equipped with spout 10, and slider 11 is located the 10 inner chambers of spout.

In this embodiment, as shown in fig. 1, the sliding block 11 is slidably fixed in the inner cavity of the sliding groove 10, so that even if someone intentionally rotates the protection cover 3, the screw is not driven to rotate, thereby loosening the screw and further improving the anti-theft effect.

It should be noted that the utility model relates to a hidden screw fastener, the screw post 1, the nut 2, the protection casing 3, the lid 4, the pickproof lock 5, the lock core 6, the dead bolt 7, the draw-in groove 8, decorate the petal 9, the spout 10, the slider 11, the dysmorphism lockhole 12, the part is the general standard component or the part that technical staff in this field knows, its structure and principle all can all be known through the technical manual or through the conventional experimental method to this technical staff, in operation, the protection casing 3 is installed to the outside of nut 2, and the nut 2 is located in the protection casing 3 inner chamber, the top of the screw post 1 runs through the protection casing 3, the lid 4 is installed at the top of the protection casing 3, so cover nut 2 in the protection casing 3 can avoid nut 2 to expose in the outer end, so not only rust easily and expose outside and influence pleasing to the eye, decorate the petal 9 is, the decorative petals 9 accompany the outer side of the circular protective cover 3, so that the beautiful effect of the appearance of the protective cover 3 is added; an anti-theft lock 5 is arranged on one side of a cover 4, a lock cylinder 6 is movably arranged in an inner cavity of the anti-theft lock 5, a special-shaped lock hole 12 is arranged in the inner cavity of the lock cylinder 6, a fixing bolt 7 is welded on one side of the bottom end of the lock cylinder 6, and a clamping groove 8 with a sunken inner cavity is arranged on one side wall of the anti-theft lock 5 of the protective cover 3, so that when the cover 4 is covered, a key with a shape matched with the special-shaped lock hole 12 is inserted into the inner cavity of the special-shaped lock hole 12, then the lock cylinder 6 is rotated, the fixing bolt 7 is rotated into the clamping groove 8 on one side of the protective cover 3, and then the key is pulled out, so that the cover 4 is fixed on the top end of the protective cover 3, the cover 4 is prevented from being accidentally opened to expose a nut 2 to affect beauty and rust easily, more importantly, a person is prevented from, the safety of the fixed object is improved. The top of screw post 1 runs through 3 inner chambers of protection casing, and the top both sides are passed through slider 11 and are slided and fix in 10 inner chambers of spout, even someone rotates protection casing 3 on purpose and can not drive the screw and rotate like this to cause the screw not hard up, improve the theftproof effect once more.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a hidden screw fastener, includes screw post (1) and nut (2), the welding of screw post (1) top has nut (2), its characterized in that: protection casing (3) are installed in nut (2) outside, and nut (2) are located protection casing (3) inner chamber, protection casing (3) top movable mounting has lid (4), pickproof lock (5) are installed to lid (4) one side, pickproof lock (5) inner chamber bottom movable mounting has lock core (6), dysmorphism lockhole (12) have been seted up to lock core (6) inner chamber, lock core (6) bottom one side welding has gim peg (7), draw-in groove (8) have been seted up to protection casing (3) a lateral wall.

2. The concealed screw fastener according to claim 1, wherein: decorative petals (9) are installed at the bottom end of the outer side wall of the protective cover (3).

3. The concealed screw fastener according to claim 1, wherein: the top welding of screw post (1) both sides has slider (11), and slider (11) are located protection casing (3) inner chamber, fixed spout (10) that are equipped with of screw post (1) top lateral wall, and slider (11) are located spout (10) inner chamber.