Novel anti-theft screw

Abstract

The novel anti-theft screw comprises a screw body, a screw head is arranged at the top of the screw body, and a mounting groove is formed in the center of the top of the screw head. The mounting groove is matched with a filling block, an inner positioning groove is formed in the side wall of the filling block and provided with a positioning spring and a positioning shaft, and the mounting groove is provided with an outer positioning groove corresponding to the inner positioning groove; when the filling blocks are placed in the mounting grooves, the inner positioning grooves are opposite to the corresponding outer positioning grooves, and the positioning shafts are partially clamped in the outer positioning grooves under the action of the positioning springs; the anti-theft device is screwed and fastened through a conventional wrench, use is convenient, after fastening, the filling block is placed in the installation groove, the installation groove is filled and leveled up through the filling block, reverse screwing cannot be achieved, and the anti-theft effect is really achieved; the positioning shaft is clamped between the inner positioning groove and the outer positioning groove through the positioning spring, so that the filling block can be locked in the mounting groove and cannot be taken out, and the stability is high; the overall structure is simple and suitable for popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of screws, and in particular relates to a novel anti-theft screw. Background Art

[0002] Screws are commonly used mechanical fasteners, mainly used to fix and connect two or more workpieces, and have a very wide range of uses.

[0003] In order to solve the problem of screw theft prevention, the Chinese utility model patent anti-theft screw (CN217328058U) proposes to set a cover plate, a fixing rod and a glue bag. The cover plate can be rotated to cover the top of the screw head, and the fixing rod can be inserted into the positioning groove and press the glue bag, so that the glue in the glue bag flows out. When the glue solidifies, it can fix the fixing rod in the positioning groove, thereby fixing the position of the cover plate. Since the cover plate has covered the cross slot, people cannot use a screwdriver to remove the screw, so that the screw has a certain anti-theft performance.

[0004] This type of anti-theft screw is inconvenient to operate, and is bonded by glue, which has poor stability. The cover plate is easily removed under external force, making it difficult to truly play an anti-theft role. Utility Model Content

[0005] The utility model provides a novel anti-theft screw. A filling block is placed in an installation groove. The filling block fills the installation groove and cannot be twisted in the opposite direction, thereby truly achieving an anti-theft effect. A positioning spring causes a positioning shaft to be clamped between an inner positioning groove and an outer positioning groove, thereby locking the filling block in the installation groove and preventing it from being taken out. The utility model has a high stability. The overall structure is simple and suitable for promotion, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of anti-theft screw, including a screw body, a screw head is provided on the top of the screw body, and a mounting groove is provided in the center of the top of the screw head; the mounting groove is matched with a filling block, the side wall of the filling block is provided with an inner positioning groove, the inner positioning groove is equipped with a positioning spring and a positioning shaft, and the mounting groove is provided with an outer positioning groove corresponding to the inner positioning groove; when the filling block is placed in the mounting groove, the inner positioning groove is opposite to the corresponding outer positioning groove, and the positioning shaft is partially stuck in the outer positioning groove under the action of the positioning spring.

[0007] Preferably, the mounting groove is a hexagonal groove, and the filling block is a corresponding hexagonal block.

[0008] Preferably, when the filling block is placed in the mounting groove, the filling block fits tightly with the mounting groove.

[0009] Preferably, the filling block is a high hardness alloy.

[0010] Preferably, two inner positioning grooves are provided, which are respectively arranged on two sides of the filling block, and two outer positioning grooves are also relatively provided.

[0011] Preferably, the head end of the positioning shaft is a conical head structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. It is easy to use by tightening with a conventional wrench. After tightening, place the filling block in the installation groove. The filling block will fill the installation groove and cannot be twisted in the opposite direction, thus truly achieving an anti-theft effect.

[0014] 2. The positioning shaft is stuck between the inner positioning groove and the outer positioning groove through the positioning spring, so that the filling block can be locked in the installation groove and cannot be taken out, with high stability.

[0015] 3. The overall structure is simple and suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 2 It is a front structural schematic diagram of the utility model;

[0018] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the screw body, screw head, and mounting groove of the utility model;

[0020] Figure 5 This is a schematic diagram of the cross-sectional structure of the filling block, the inner positioning groove, the positioning spring, and the positioning shaft of the utility model;

[0021] Figure 6 This is a schematic diagram of the side view structure of the positioning shaft of the utility model;

[0022] Figure 7 It is a schematic diagram of the top view structure of the filling block and the positioning shaft of the utility model.

[0023] In the figure: 1. screw body; 2. screw head; 3. mounting groove; 4. filling block; 5. inner positioning groove; 6. positioning spring; 7. positioning shaft; 8. outer positioning groove; 9. conical head structure. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-7 The utility model provides a new type of anti-theft screw, including a screw body 1, a screw head 2 is provided on the top of the screw body 1, and a mounting groove 3 is provided at the top center of the screw head 2; the mounting groove 3 is matched with a filling block 4, and the side wall of the filling block 4 is provided with an inner positioning groove 5, and the inner positioning groove 5 is equipped with a positioning spring 6 and a positioning shaft 7, and the mounting groove 3 is provided with an outer positioning groove 8 corresponding to the inner positioning groove 5; when the filling block 4 is placed in the mounting groove 3, the inner positioning groove 5 is opposite to the corresponding outer positioning groove 8, and the positioning shaft 7 is partially stuck in the outer positioning groove 8 under the action of the positioning spring 6; when in use, the screw A mounting groove 3 is provided on the screw head 2 of the main body 1, which can be tightened by an external wrench. After the fixation is completed, hold the filling block 4 and squeeze the positioning shaft 7 by hand to make it fully pressed into the inner positioning groove 5, and then make the inner positioning groove 5 correspond to the direction of the outer positioning groove 8, and press the filling block 4 into the mounting groove 3. After being fully pressed into place, the inner positioning groove 5 and the outer positioning groove 8 are opposite, and the positioning shaft 7 will partially enter the outer positioning groove 8 under the extrusion of the positioning spring 6, so as to be stuck between the inner positioning groove 5 and the outer positioning groove 8, and then the filling block 4 can be locked in the mounting groove 3 and cannot be taken out, and the filling block 4 fills the mounting groove 3, thereby truly achieving an anti-theft effect.

[0026] Specifically, the installation groove 3 is a hexagonal groove, and the filling block 4 is a corresponding hexagonal block; in this embodiment, by setting the installation groove 3 to a hexagonal structure, it is convenient to screw it with a conventional hexagonal wrench.

[0027] Specifically, when the filling block 4 is placed in the mounting groove 3, the filling block 4 fits tightly with the mounting groove 3; in this embodiment, the filling block 4 fully fills the mounting groove 3 and fits tightly to prevent external parts from twisting through the gap, thereby further improving the anti-theft effect.

[0028] Specifically, the filling block 4 is made of a high-hardness alloy; in this embodiment, the filling block 4 is not easily damaged, further improving the safety and stability effect.

[0029] Specifically, two inner positioning grooves 5 are provided, which are respectively arranged on both sides of the filling block 4, and two outer positioning grooves 8 are also relatively provided; in this embodiment, by relatively arranging the two sides to lock, the stability of the filling block 4 being locked on the screw head 2 is further improved.

[0030] Specifically, the head end of the positioning shaft 7 is a conical head structure 9; in this embodiment, after being fully pressed into place, the inner positioning groove 5 and the outer positioning groove 8 are opposite to each other, so that the positioning shaft 7 can enter the outer positioning groove 8 under the extrusion of the positioning spring 6 to prevent the positioning shaft 7 from being unable to enter due to workpiece errors.

[0031] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0032] Working principle: When in use, a mounting groove 3 is provided on the screw head 2 of the screw body 1. The mounting groove 3 is a hexagonal groove, which can be tightened by an external conventional wrench to tighten the workpiece. After the fixation is completed, hold the filling block 4 and squeeze the positioning shaft 7 by hand to make it fully pressed into the inner positioning groove 5, and then make the inner positioning groove 5 correspond to the direction of the outer positioning groove 8, and press the filling block 4 into the mounting groove 3. After being fully pressed into place, the inner positioning groove 5 and the outer positioning groove 8 are opposite, and the positioning shaft 7 will partially enter the outer positioning groove 8 under the extrusion of the positioning spring 6, thereby being stuck between the inner positioning groove 5 and the outer positioning groove 8, and then the filling block 4 can be locked in the mounting groove 3 and cannot be removed, and the filling block 4 fills the mounting groove 3, truly achieving an anti-theft effect.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel anti-theft screw, comprising a screw body (1), characterized in that: A screw head (2) is provided at the top of the screw body (1), and a mounting groove (3) is provided at the center of the top of the screw head (2); the mounting groove (3) is matched with a filling block (4), and the side wall of the filling block (4) is provided with an inner positioning groove (5), and the inner positioning groove (5) is equipped with a positioning spring (6) and a positioning shaft (7), and the mounting groove (3) is provided with an outer positioning groove (8) corresponding to the inner positioning groove (5); when the filling block (4) is placed in the mounting groove (3), the inner positioning groove (5) is opposite to the corresponding outer positioning groove (8), and the positioning shaft (7) is partially stuck in the outer positioning groove (8) under the action of the positioning spring (6).

2. A new anti-theft screw according to claim 1, characterized in that: The installation groove (3) is a hexagonal groove, and the filling block (4) is a corresponding hexagonal block.

3. A new anti-theft screw according to claim 1, characterized in that: When the filling block (4) is placed in the installation groove (3), the filling block (4) and the installation groove (3) are tightly matched.

4. The novel anti-theft screw according to claim 1 is characterized in that: The filling block (4) is made of high-hardness alloy.

5. The novel anti-theft screw according to claim 1 is characterized in that: Two inner positioning grooves (5) are provided, which are respectively arranged on two sides of the filling block (4), and two outer positioning grooves (8) are also arranged opposite to each other.

6. The novel anti-theft screw according to claim 1 is characterized in that: The head end of the positioning shaft (7) is a conical head structure (9).

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