CN217107761U - Anti-theft screw and special screwdriver head thereof - Google Patents
Anti-theft screw and special screwdriver head thereof Download PDFInfo
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- CN217107761U CN217107761U CN202122939924.6U CN202122939924U CN217107761U CN 217107761 U CN217107761 U CN 217107761U CN 202122939924 U CN202122939924 U CN 202122939924U CN 217107761 U CN217107761 U CN 217107761U
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Abstract
The utility model discloses an anti-theft screw and special batch head thereof, anti-theft screw include the screw body, and screw body top is equipped with a recess, and the recess cross-section is interior hexagonal flower type structure, is equipped with an anti-theft round pin in the middle of the recess, and the radial cross-section of anti-theft round pin is circular or oval, is equipped with the breach of a vertical setting on the anti-theft round pin, and the breach has two first sides, and two first sides constitute an contained angle limit, and the contained angle limit is in the anti-theft round pin. The utility model discloses set up the breach on the anti-theft pin, the angle size of breach, opening orientation all can regard as user's exclusive design, not only beautifully but also have uniqueness, are difficult to be imitated by the people, also are difficult to be unscrewed by the outfit instrument of the anti-theft screw commonly used, have improved the theftproof performance greatly.
Description
Technical Field
The utility model relates to a machinery accessories technical field, in particular to anti-theft screw and special batch head thereof.
Background
The screw is a tool for fastening the parts of the object step by utilizing the physics and mathematical principles of the inclined circular rotation and friction of the object. The screw in the prior art can be detached by using a universal screwdriver, so that the safety is lacked, and the screw gives many unscrupulous or even lawless persons a chance to damage the screw. Therefore, a plurality of anti-theft screws appear in the market, and the anti-theft screws integrate the anti-theft technology while taking the product fastening function into consideration, so as to meet the requirements of specific customers, and particularly obtain great needs in the field of public facilities. The anti-theft screw is generally based on a machine screw, an anti-theft pin is arranged in a head groove of the anti-theft screw, a conventional tool cannot extend into the head groove to screw the anti-theft pin, and a special tool is required to operate the anti-theft screw, so that the anti-theft function of the anti-theft screw is highlighted. However, the anti-theft pin of the anti-theft screw commonly used in the market is generally arranged in a cylindrical shape, so that the phenomenon that one equipped tool can unscrew the anti-theft screw produced by multiple manufacturers often occurs, and the anti-theft capability is greatly reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a simple structure, theftproof performance is good theftproof screw and special batch head thereof.
Therefore, the utility model discloses a first technical scheme is: the anti-theft screw comprises a screw body, wherein a groove is formed in the top of the screw body, the cross section of the groove is of an inner hexagonal flower type structure, an anti-theft pin is arranged in the middle of the groove, the radial cross section of the anti-theft pin is circular or oval, a vertically arranged notch is formed in the anti-theft pin and is provided with two first side faces, the two first side faces form an included angle edge, and the included angle edge is located in the anti-theft pin.
The utility model discloses add one breach on the cylindrical antitheft pin originally, be different from the shape of conventional theftproof post, and change the circular cross section originally into oval, perhaps on the basis of conventional product, increase the diameter of theftproof post about 0.4mm, though theftproof post main part is cylindrical equally, nevertheless is different with current conventional theftproof post size, also the easy antitheft screw that is used commonly of being equipped with the instrument and unscrews to improve the theftproof performance. Because the recess at screw body top is convenient dedicated batch head to insert, batch head and recess cooperation can unscrew the screw, because the power that the twisting needs is great, so the intensity of batch head needs to guarantee, the size of theftproof round pin in the recess can not be too big, influences batch head intensity, so only when the theftproof round pin has seted up vertical setting breach, on the condition of having reduced partial theftproof round pin volume in other words, increase the diameter of a bit theftproof round pin, can not exert an influence to the intensity of batch head.
Preferably, the included angle between the two first side surfaces of the notch is 30-120 degrees. The angle of contained angle can be customized according to customer's demand, and the orientation of breach is more optional, for example the recess is interior hexagonal structure, and the breach can be selected towards hexagonal limit or towards hexagonal contained angle, and this can make the anti-theft screw have more uniqueness, is difficult to imitated by the people, and theftproof performance strengthens.
Preferably, the radial section of the anti-theft pin is circular, the radial section of the notch is fan-shaped, the vertex of the fan-shaped is superposed with the circle center of the radial section of the anti-theft pin, and the included angle of the fan-shaped is 90 degrees. The 90-degree gap is equivalent to the reduction of the volume of one fourth of the original anti-theft pin, so the diameter of the anti-theft pin can be properly increased, the insertion space of the batch head cannot be occupied, and the strength of the batch head cannot be influenced.
Preferably, the radial section of the anti-theft pin is oval, the vertex of the radial section of the notch is located on the long axis of the oval, and the two first side surfaces of the notch are symmetrically arranged relative to the long axis. After the anti-theft pin is changed into an oval shape, the long shaft is longer than the diameter of the conventional cylindrical anti-theft column, and obviously, the anti-theft pin cannot be unscrewed by a conventionally equipped tool, so that the anti-theft performance is improved.
The second technical proposal of the utility model is that: the special batch head of the anti-theft screw comprises a batch head body, wherein one end of the batch head body is an installation end, the other end of the batch head body is a working end, and the radial section of the working end is of an inner hexagonal flower type structure and is matched with a groove at the top of the screw body; the working end is internally provided with a pin hole, a convex block is arranged in the pin hole, and the pin hole is matched with the anti-theft pin at the top of the screw body. The screwdriver head is matched with the anti-theft screw, the screwdriver head can be arranged on a screwdriver head for screwing the screw on an electric hand drill or an electric hammer, and the working end of the screwdriver head can be inserted into the groove at the top of the anti-theft screw and is completely attached to the groove; due to the existence of the anti-theft pin, the screwdriver bit is provided with the pin hole, so that the anti-theft pin can be conveniently inserted; in order to increase the strength of the batch head, a lug capable of being inserted into the notch is arranged in the pin hole, and the lug can increase the strength of the working end of the batch head and prevent the working end of the batch head from being distorted and deformed.
Preferably, the working end of the bit body is inserted into the groove of the screw body, the outer side surface of the working end is attached to the inner side surface of the groove, the anti-theft pin in the middle of the groove is inserted into the pin hole of the working end, and the convex block of the pin hole is inserted into the notch of the anti-theft pin.
Preferably, the lug in the pin hole comprises two second side surfaces, and an included angle formed by the two second side surfaces is smaller than or equal to an included angle formed by the two first side surfaces on the notch. In order to reduce the processing precision, the convex block at the pin hole is not required to be consistent with the gap of the anti-theft pin in size, and can be slightly smaller than the gap, so that the convex block can be conveniently inserted.
Compared with the prior art, the beneficial effects of the utility model are that: the notch is formed in the anti-theft pin, the angle size and the opening direction of the notch can be designed as the exclusive of a user, the anti-theft pin is attractive and unique, the anti-theft pin is not easy to imitate by people, and is not easy to be unscrewed by a commonly used anti-theft screw, so that the anti-theft performance is greatly improved.
Drawings
The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention
FIG. 1 is a schematic structural view of an antitheft screw according to embodiment 1;
FIG. 2 is a structural plan view of the antitheft screw according to embodiment 1;
FIG. 3 is a schematic structural diagram of a batch head dedicated to embodiment 1;
FIG. 4 is a bottom view of the special batch head of embodiment 1;
FIG. 5 is a structural plan view of the antitheft screw of embodiment 2;
FIG. 6 is a bottom view of the special batch head of embodiment 2.
Labeled as: the anti-theft bolt comprises a bolt body 1, a groove 2, a first anti-theft pin 3, a first gap 4, a bit body 5, a mounting end 6, a working end 7, a first pin hole 8, a first convex block 9, a second anti-theft pin 10, a second gap 11, a second pin hole 12 and a second convex block 13.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and as used in the description of the invention, the definition of "a plurality" or "a plurality" means two or more unless otherwise explicitly specified.
Example 1
As shown in fig. 1-2, the antitheft screw of the present embodiment includes a screw body 1, a groove 2 is provided at the top of the screw body, the cross section of the groove is of an inner hexagonal flower type structure, a first antitheft pin 3 is provided in the middle of the groove, the radial cross section of the first antitheft pin 3 is circular, a first vertically-arranged notch 4 is provided on the first antitheft pin, the radial cross section of the first notch 4 is fan-shaped, the center of the fan-shaped vertex coincides with the center of the first antitheft pin radial cross section, and the included angle of the fan-shaped notch is 90 degrees. The 90-degree first gap is equivalent to the reduction of the volume of one fourth of the original anti-theft pin, so the diameter of the anti-theft pin can be properly increased by 0.4mm on the conventional product, the insertion space of the batch head cannot be occupied, and the strength of the batch head cannot be influenced.
The angle of contained angle can be customized according to customer's demand, and the orientation of breach is more optional, for example the recess is interior hexagonal structure, and the breach can be selected towards hexagonal limit or towards hexagonal contained angle, and this can make the anti-theft screw have more uniqueness, is difficult to imitated by the people, and theftproof performance strengthens.
As shown in fig. 3 to 4, the special bit matched with the anti-theft screw comprises a bit body 5, one end of the bit body is a mounting end 6, the other end of the bit body is a working end 7, the mounting end is used for being fixed on a screwdriver head for screwing the screw on an electric hand drill or an electric hammer, and the radial section of the working end 7 is of an inner hexagonal flower-shaped structure and is matched with a groove at the top of the screw body; the anti-theft pin is characterized in that a first round pin hole 8 is formed in the working end, the diameter of the first pin hole is slightly larger than that of the first anti-theft pin 3, the first anti-theft pin 3 can be conveniently inserted into the first pin hole 8, a first protruding block 9 is arranged in the first pin hole, the first protruding block 9 is matched with a first gap 4 of the first anti-theft pin, in order to reduce machining precision, the first protruding block in the first pin hole does not need to be consistent with the first gap of the first anti-theft pin in size, and can be slightly smaller than the first gap, and the first protruding block can be conveniently inserted.
When the anti-theft bolt is used, the screwdriver head is arranged on the screwdriver head, the anti-theft bolt is placed in the mounting hole of the corresponding object, then the working end of the screwdriver head is inserted into the groove in the top of the bolt body, the angle is accurately seen when the anti-theft bolt is inserted, the first pin hole is opposite to the first anti-theft bolt, the first lug in the first pin hole is opposite to the first notch of the first anti-theft bolt, and then the screwdriver is rotated clockwise or anticlockwise to unscrew or screw the anti-theft bolt.
Example 2
As shown in fig. 5, the antitheft screw structure of the present embodiment is similar to that of embodiment 1, except that: a second anti-theft pin 10 is arranged in a groove in the top of the screw body, the radial section of the second anti-theft pin is oval, a second notch 11 which is vertically arranged is arranged on the second anti-theft pin, the vertex of the radial section of the second notch is positioned on the long axis of the oval, and two side faces of the second notch are symmetrically arranged relative to the long axis. After the second anti-theft pin is changed into the oval shape, the long shaft is longer than the diameter of the conventional cylindrical anti-theft column, and obviously cannot be unscrewed by a conventionally equipped tool, so that the anti-theft performance is improved.
As shown in fig. 6, the dedicated batch head structure of the present embodiment is similar to the dedicated batch head structure of embodiment 1, except that: an oval second pin hole 12 is formed in the working end of the screwdriver head body, the diameter of the oval second pin hole is slightly larger than that of the second anti-theft pin 10, the second anti-theft pin can be conveniently inserted into the second pin hole, a second convex block 13 is arranged in the second pin hole, the second convex block is matched with a second gap 11 of the second anti-theft pin, in order to reduce machining precision, the size of the second convex block in the second pin hole does not need to be consistent with that of the second gap of the second anti-theft pin, the second convex block can be slightly smaller than the second gap, and the second convex block can be conveniently inserted.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides an anti-theft screw, includes the screw body, and the screw body top is equipped with a recess, and the recess cross-section is hexagon socket head cap flower type structure, its characterized in that: the anti-theft pin is arranged in the middle of the groove, the radial section of the anti-theft pin is circular or oval, a vertically arranged notch is arranged on the anti-theft pin, the notch is provided with two first side faces, the two first side faces form an included angle edge, and the included angle edge is positioned in the anti-theft pin.
2. A theft-proof screw, as claimed in claim 1, wherein: the included angle between the two first side surfaces of the notch is 30-120 degrees.
3. A theft-proof screw, as claimed in claim 1, wherein: the radial cross section of the anti-theft pin is circular, the radial cross section of the notch is fan-shaped, the top point of the fan-shaped is superposed with the circle center of the radial cross section of the anti-theft pin, and the included angle of the fan-shaped is 90 degrees.
4. A theft-proof screw, as claimed in claim 1, wherein: the radial section of the anti-theft pin is oval, the vertex of the radial section of the notch is positioned on the long axis of the oval, and the two first side surfaces of the notch are symmetrically arranged relative to the long axis.
5. A special batch of anti-theft screws as claimed in any one of claims 1 to 4, characterized in that: the screwdriver head comprises a screwdriver head body, wherein one end of the screwdriver head body is an installation end, the other end of the screwdriver head body is a working end, and the radial section of the working end is of an inner hexagonal flower type structure and is matched with a groove in the top of a screw body; the working end is internally provided with a pin hole, a convex block is arranged in the pin hole, and the pin hole is matched with the anti-theft pin at the top of the screw body.
6. The specialized batch head of claim 5, wherein: the working end of the screwdriver bit body is inserted into the groove of the screw body, the outer side face of the working end is attached to the inner side face of the groove, the anti-theft pin in the middle of the groove is inserted into the pin hole of the working end, and the convex block of the pin hole is inserted into the gap of the anti-theft pin.
7. The specialized batch head of claim 5, wherein: the lug in the pin hole comprises two second side surfaces, and an included angle formed by the two second side surfaces is smaller than or equal to an included angle formed by the two first side surfaces on the notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122939924.6U CN217107761U (en) | 2021-11-23 | 2021-11-23 | Anti-theft screw and special screwdriver head thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122939924.6U CN217107761U (en) | 2021-11-23 | 2021-11-23 | Anti-theft screw and special screwdriver head thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217107761U true CN217107761U (en) | 2022-08-02 |
Family
ID=82588201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122939924.6U Active CN217107761U (en) | 2021-11-23 | 2021-11-23 | Anti-theft screw and special screwdriver head thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217107761U (en) |
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2021
- 2021-11-23 CN CN202122939924.6U patent/CN217107761U/en active Active
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