CN214092649U - Non-standard special countersunk screw - Google Patents

Non-standard special countersunk screw Download PDF

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Publication number
CN214092649U
CN214092649U CN202022529129.5U CN202022529129U CN214092649U CN 214092649 U CN214092649 U CN 214092649U CN 202022529129 U CN202022529129 U CN 202022529129U CN 214092649 U CN214092649 U CN 214092649U
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CN
China
Prior art keywords
screw
nut
block
screw rod
connecting portion
Prior art date
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Active
Application number
CN202022529129.5U
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Chinese (zh)
Inventor
孙木楚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tailing Technology Development Co ltd
Original Assignee
Tailing Technology Development Co ltd
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Filing date
Publication date
Application filed by Tailing Technology Development Co ltd filed Critical Tailing Technology Development Co ltd
Priority to CN202022529129.5U priority Critical patent/CN214092649U/en
Application granted granted Critical
Publication of CN214092649U publication Critical patent/CN214092649U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model belongs to the technical field of the screw technique and specifically relates to a special countersunk screw of non-standard, including screw rod and nut, link to each other through toper connecting portion transitional coupling and conical microcephaly end and screw rod between screw rod and the nut, conical stub end and nut link to each other, the surface mounting block of nut, the external profile of block is hexagon nut form, the cross recess is seted up at the surface middle part of block, through toper connecting portion transitional coupling between screw rod and the nut, during the installation screw, the toper outer peripheral face of connecting portion and the inner wall of mounting hole outer extreme department can support all around well and lean on the cooperation, can carry out guiding orientation to the installation of screw on the one hand, gap between on the other hand connecting portion can be fine compensaties mounting hole and the screw rod, prevent effectively that the screw is not hard up. The arrangement of the block body in the shape of the hexagon nut and the cross groove can realize the installation and the disassembly of the screw by screwing the screw by a wrench or a screwdriver, and is convenient.

Description

Non-standard special countersunk screw
Technical Field
The utility model belongs to the technical field of the screw technique and specifically relates to a special countersunk screw of non-standard.
Background
The screw of the present electric vehicle anti-theft lock usually adopts a common flat head screw, and for the convenient installation of the anti-theft lock, the mounting hole of the lock is slightly larger, so that a mounting gap exists after the installation, the anti-theft lock is easy to loosen under the use of the national standard safety torsion force of 200N, and the anti-theft durability of the electric vehicle is influenced.
SUMMERY OF THE UTILITY MODEL
The applicant aims at the defects in the prior art, and provides a non-standard special countersunk head screw which can effectively prevent the screw from loosening and can be conveniently mounted and dismounted by adopting various tools.
The utility model discloses the technical scheme who adopts as follows: the utility model provides a special countersunk screw of non-standard, includes screw rod and nut, links to each other through toper connecting portion transitional coupling and conical stub end and screw rod between screw rod and the nut, and conical stub end and nut link to each other, and the external surface of nut fixes the block, and the external profile of block is the hexagon nut form, and the cross recess is seted up at the surface middle part of block.
As a further improvement of the above technical solution:
the central line of the block body is coincided with the central line of the screw.
The outer surface of the block body is provided with a cylindrical groove, and the cross groove is formed in the middle of the bottom of the groove.
The peripheral edge of the block and the peripheral edge of the nut are arranged at intervals.
The utility model has the advantages as follows: in this application, through toper connecting portion transitional coupling between screw rod and the nut, during the installation screw, the cooperation can be supported all around well to the toper outer peripheral face of connecting portion and the inner wall of mounting hole outer extreme department, can carry out guiding orientation to the installation of screw on the one hand, and on the other hand connecting portion can be fine compensate the clearance between mounting hole and the screw rod, prevent effectively that the screw is not hard up. The outer surface of the nut is fixed with a hexagon nut-shaped block, and the wrench can be used for screwing the block to realize the installation and the disassembly of the screw. The cross slot is seted up at the surface middle part of block, can insert through the screwdriver and twist the screw in the cross slot and realize the installation and the dismantlement to the screw, can install and dismantle the screw in order to adopt multiple instrument, it is comparatively convenient.
Drawings
Fig. 1 is a structural view of the present invention.
Fig. 2 is a structural view of another aspect of the present invention.
Wherein: 10. a screw; 20. a nut; 30. a connecting portion; 40. a block body; 41. a groove; 50. a cross-shaped groove.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-2, the non-standard special countersunk head screw of the present embodiment includes a screw 10 and a nut 20, the screw 10 and the nut 20 are transitionally connected through a tapered connection portion 30, a tapered small head end is connected to the screw 10, a tapered large head end is connected to the nut 20, a block 40 is fixed on an outer surface of the nut 20, an outer contour of the block 40 is a hexagon nut, and a cross groove 50 is formed in a middle portion of an outer surface of the block 40.
The centre line of the block 40 and the centre line of the screw 10 coincide.
The outer surface of the block body 40 is provided with a cylindrical groove 41, and the cross groove 50 is arranged in the middle of the bottom of the groove 41.
The peripheral edge of the block 40 is spaced from the peripheral edge of the nut 20 so that when the block 40 is turned with a wrench, the wrench can be placed on the nut 20 to provide support.
In this application, through toper connecting portion 30 transitional coupling between screw rod 10 and the nut 20, during the installation screw, the cooperation can be leaned on all around well to the inner wall of the toper outer peripheral face of connecting portion 30 and mounting hole outer end department, can carry out guiding orientation to the installation of screw on the one hand, and on the other hand connecting portion 30 can be fine compensate the clearance between mounting hole and the screw rod 10, prevent effectively that the screw is not hard up. The outer surface of the nut 20 is fixed with a hexagonal nut-shaped block 40, and the block 40 can be screwed by a wrench to realize the installation and the removal of the screw. The cross groove 50 is seted up in the surface middle part of block 40, can insert through the screwdriver and screw the installation and the dismantlement of screw in the cross groove 50, can install and dismantle the screw in order to adopt multiple instrument, it is comparatively convenient.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.

Claims (3)

1. The utility model provides a special countersunk screw of nonstandard which characterized in that: including screw rod (10) and nut (20), link to each other through toper connecting portion (30) transitional coupling and conical stub end and screw rod (10) between screw rod (10) and nut (20), conical stub end and nut (20) link to each other, the external surface fixed block (40) of nut (20), the outside profile of block (40) is the hexagon nut form, cross recess (50) are seted up at the surface middle part of block (40), columniform recess (41) are seted up to the surface of block (40), and the tank bottom middle part in recess (41) is seted up in cross recess (50).
2. The non-standard special purpose countersunk screw of claim 1, wherein: the central line of the block body (40) is coincident with the central line of the screw (10).
3. The non-standard special purpose countersunk screw of claim 2, wherein: the peripheral edge of the block (40) and the peripheral edge of the nut (20) are arranged at intervals.
CN202022529129.5U 2020-11-04 2020-11-04 Non-standard special countersunk screw Active CN214092649U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022529129.5U CN214092649U (en) 2020-11-04 2020-11-04 Non-standard special countersunk screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022529129.5U CN214092649U (en) 2020-11-04 2020-11-04 Non-standard special countersunk screw

Publications (1)

Publication Number Publication Date
CN214092649U true CN214092649U (en) 2021-08-31

Family

ID=77447508

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022529129.5U Active CN214092649U (en) 2020-11-04 2020-11-04 Non-standard special countersunk screw

Country Status (1)

Country Link
CN (1) CN214092649U (en)

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