CN213655405U

CN213655405U - Anti-theft screw

Info

Publication number: CN213655405U
Application number: CN202022461506.6U
Authority: CN
Inventors: 孔京生
Original assignee: Jiashan Zhengli Fastener Co ltd
Current assignee: Jiashan Zhengli Fastener Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-09
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a screw technical field aims at providing an anti-theft screw, and its technical scheme main points are including screw rod and nut, a word groove has been seted up to the upper surface of nut, the screw rod seted up run through in the logical groove in a word groove, it has the locating lever to lead to sliding connection, the butt pole that the bottom both sides fixed connection of locating lever has the level to set up, the confession has been seted up to the lateral wall of screw rod butt pole sliding connection's spout, the sliding tray of setting up the top of running through its top of locating lever, sliding connection has the slide bar in the sliding tray, the top fixed connection of slide bar has the connecting plate that the level set up, the first spring of fixedly connected with between the bottom inner wall of sliding tray and the tip of slide bar. The utility model discloses can effectively play the theftproof effect.

Description

Anti-theft screw

Technical Field

The utility model relates to a screw technical field, more specifically say, it relates to an anti-theft screw.

Background

The screw is a tool for fastening the parts of an object step by utilizing the physical and mathematical principles of the inclined circular rotation and friction of the object.

The existing screw can be disassembled and assembled again after being assembled, and under the condition that certain workpieces are only assembled and fixed once, if the screw can be disassembled again, the workpieces can be stolen, and the like, so that a new technical scheme is required to be provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide an antitheft screw.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an antitheft screw, includes screw rod and nut, the straight line groove has been seted up to the upper surface of nut, the screw rod seted up run through in the logical groove of straight line groove, it has the locating lever to lead to inslot sliding connection, the butt pole that the bottom both sides fixed connection of locating lever set up the level, the confession has been seted up to the lateral wall of screw rod butt pole sliding connection's spout, the sliding tray that runs through its top of locating lever has been seted up, sliding connection has the slide bar in the sliding tray, the top fixed connection of slide bar has the connecting plate that the level set up, a first spring of fixedly connected with between the bottom inner wall of sliding tray and the tip of slide bar.

Through adopting above-mentioned technical scheme, when installing this screw, insert a word inslot through the tip with the screwdriver and twist this screw, the lower surface of butt pole supports tightly in the work piece surface, continue to twist the screwdriver, make butt pole along spout upward movement, drive the locating lever upward movement simultaneously, make first spring compressed, after this screw is screwed up, take out the screwdriver back, under the effect of first spring elasticity, connecting plate upward movement, thereby play hidden jam effect with a word groove, thereby play the theftproof effect.

The utility model discloses further set up to: the connecting plate is provided with connecting grooves penetrating through side walls of two ends of the connecting plate, connecting rods are connected in the connecting grooves in a sliding mode, second springs are fixedly connected between the inner walls of the end portions of the connecting grooves and the connecting rods, the end portions of the connecting rods are abutted against the inner walls of the straight grooves, and positioning grooves for the connecting rods to be inserted are formed in the tops of the inner walls of the end portions of the straight grooves.

Through adopting above-mentioned technical scheme, when the screw is screwed up and is taken out the screwdriver, upward movement under the elastic force effect of first spring of connecting plate, when the connecting rod was located same height with the constant head tank, under the effect of second spring elastic force, the tip of connecting rod inserted in the constant head tank to make and to dismantle this screw.

The utility model discloses further set up to: the lower surface of the nut is provided with a slot for the abutting rod to be inserted into.

Through adopting above-mentioned technical scheme, after screwing up this screw for in the butt joint pole can enter into the slot, thereby guarantee the normal fastening effect of screw.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

fig. 2 is a schematic sectional structure of the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a partially enlarged schematic view of a portion B in fig. 2.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 4.

The utility model provides an antitheft screw, including screw rod 1 and nut 2, a word groove 3 has been seted up to the upper surface of nut 2, screw rod 1 has been seted up and has been run through in logical groove 4 of a word groove 3, sliding connection has locating lever 5 in leading to groove 4, butt pole 6 that the bottom both sides fixed connection of locating lever 5 had the level to set up, spout 7 that supplies butt pole 6 sliding connection is seted up to screw rod 1's lateral wall, locating lever 5 set up the sliding tray 8 that runs through its top, sliding connection has slide bar 9 in the sliding tray 8, the top fixed connection of slide bar 9 has connecting plate 10 that the level set up, first spring 11 of fixedly connected with between the bottom inner wall of sliding tray 8 and the tip of slide bar 9.

When installing this screw, twist this screw through inserting the tip with the screwdriver in the word groove 3, when the lower surface of butt pole 6 supports tightly in the work piece surface, continue to twist and move the screwdriver, make butt pole 6 along spout 7 upward movement, drive locating lever 5 upward movement simultaneously, make first spring 11 compressed, after this screw is screwed up, take out the screwdriver back, under the effect of first spring 11 elasticity, connecting plate 10 upward movement, thereby play a word groove 3 and hide the jam effect, thereby play the theftproof effect.

Connecting plate 10 sets up the spread groove 12 that runs through its both ends lateral wall, sliding connection has connecting rod 13 in the spread groove 12, fixedly connected with second spring 14 between the tip inner wall of spread groove 12 and the connecting rod 13, the tip of connecting rod 13 supports the inner wall in a word groove 3 tightly, constant head tank 15 that supplies connecting rod 13 to insert is seted up at the tip inner wall top in a word groove 3, when the screw is screwed up and is taken out the screwdriver, connecting plate 10 upward movement under the elastic force effect of first spring 11, when connecting rod 13 is located same height with constant head tank 15, under the effect of second spring 14 elasticity, the tip of connecting rod 13 inserts in constant head tank 15, thereby make unable dismantlement to this screw.

The slot 16 that supplies butt pole 6 to insert is seted up to the lower surface of nut 2, and after screwing up this screw for butt pole 6 can enter into slot 16 in, thereby guarantees the normal fastening effect of screw.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and the ordinary changes and replacements performed by those skilled in the art within the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an anti-theft screw, includes screw rod and nut, characterized by: the utility model discloses a nut, including screw cap, screw rod, locating lever, butt pole, connecting plate, the straight groove has been seted up to the upper surface of nut, the screw rod set up run through in the logical groove of straight groove, it has the locating lever to lead to inslot sliding connection, the butt pole that the bottom both sides fixed connection of locating lever has the level to set up, the confession has been seted up to the lateral wall of screw rod butt pole sliding connection's spout, the sliding tray that runs through its top of locating lever has been seted up, sliding connection has the slide bar in the sliding tray, the connecting plate that the top fixed connection of slide bar has the level to set up, the first.

2. The anti-theft screw according to claim 1, wherein: the connecting plate is provided with connecting grooves penetrating through side walls of two ends of the connecting plate, connecting rods are connected in the connecting grooves in a sliding mode, second springs are fixedly connected between the inner walls of the end portions of the connecting grooves and the connecting rods, the end portions of the connecting rods are abutted against the inner walls of the straight grooves, and positioning grooves for the connecting rods to be inserted are formed in the tops of the inner walls of the end portions of the straight grooves.

3. An anti-theft screw as claimed in claim 2, wherein: the lower surface of the nut is provided with a slot for the abutting rod to be inserted into.