CN211820297U

CN211820297U - Anti-drop self tapping screw

Info

Publication number: CN211820297U
Application number: CN201921990707.6U
Authority: CN
Inventors: 林洹宇
Original assignee: Suzhou Hongyu Precision Hardware Co Ltd
Current assignee: Suzhou Hongyu Precision Hardware Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-10-30
Anticipated expiration: 2029-11-18

Abstract

The utility model discloses an anti-drop self tapping screw, including double-screw bolt and anti-disengaging mechanism, self tapping mechanism is installed to the bottom of double-screw bolt, the top middle part of double-screw bolt is worn to be equipped with the screw of locking, and the upper end of double-screw bolt installs the upper prop, wear the post in the inside has been seted up of double-screw bolt, settle the upper end of upper prop has the base, and the base all wears to be equipped with the wearing groove in both ends of controlling, anti-disengaging mechanism installs in the inner of wearing the groove, anti-disengaging mechanism is installed on the top of base. This anti-drop self tapping screw is through attacking the head outward and attacking the toper form outer wall of head in, can conveniently come the montage to use, the outer wall of attacking the head can be fine promptly through the outer inside of drilling into fixed surfaces such as panel, and appear damaging when attacking the head use outward, when appearing damaging under the long-term use, can rotate the head of attacking outward, make outer attack the head phase separation with interior attack, then attack the head in using and carry out self tapping operation, has fine convenience, be favorable to carrying out the montage operation, reduce the unexpected probability that appears.

Description

Anti-drop self tapping screw

Technical Field

The utility model relates to a self tapping screw technical field specifically is an anti-drop self tapping screw.

Background

Generally, the screw is pointed, coarse, hard wood screw, aluminum alloy and plastic. A special self-tapping screw for tapping metal holes is called a tap, and the self-tapping screw is used for nonmetal or softer metal without drilling and tapping; the self-tapping screw is pointed, so that self-tapping can be realized; the common screws are flat-headed and consistent in thickness.

The situation that the design of a screw main body on the market is not tight enough often exists for example, the screw body is of an integrated structure, so that when a certain structure is damaged after being used for a long time, the whole device body can be replaced, the situation that the whole device body is wasted and not practical enough exists, and the problem that the screw is easy to fall off also exists during use, therefore, the anti-falling self-tapping screw is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-drop self tapping screw to the screw main part that proposes in solving above-mentioned background often has the design not inseparable enough condition if, the spiral shell body formula structure as an organic whole, leads to certain structure to appear damaging when using for a long time, can change the whole device body, has extravagant and not practical enough the condition, has also to appear the problem that drops easily moreover when using.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-drop self tapping screw, includes double-screw bolt and anti-disengaging mechanism, self tapping mechanism is installed to the bottom of double-screw bolt, the top middle part of double-screw bolt is worn to be equipped with the screw of locking, and the upper end of double-screw bolt installs the upper prop, interior post of wearing is seted up to the inside of double-screw bolt, the upper end of upper prop is settled there is the base, and the base about both ends all wear to be equipped with the trough of wearing, anti-disengaging mechanism installs in the inner of trough of wearing, anti-skidding mechanism is installed on.

Preferably, the self-tapping mechanism comprises an outer tapping head and an inner tapping head, wherein an inner cavity is formed in the outer tapping head, and the inner tapping head is arranged in the outer tapping head in a threaded connection mode.

Preferably, the outer walls of the outer tapping head and the inner tapping head are both in a conical shape, the inner wall of the thread embedded in the inner cavity of the outer tapping head is matched with the outer wall of the thread of the inner tapping head, and the direction of the thread of the inner tapping head is the same as that of the thread of the stud.

Preferably, the anti-disengaging mechanism comprises a threaded hole and a continuous loading head, and preferably, the anti-disengaging mechanism is provided with the threaded hole, and the bottom end of the anti-disengaging mechanism is fixed with the continuous loading head.

The inner end of the screw connection hole is provided with a screw connection rod in a threaded manner, the screw connection rod is in threaded connection with the continuous loading head, and the end part of the continuous loading head is in a rectangular tooth-shaped structure.

Preferably, the bottom of spiro union pole is screw column structure, and the bottom outer wall of spiro union pole inlays and has the screw thread, and the spiro union pole is provided with four moreover, and the spiro union pole is the annular distribution about the center of base.

Preferably, the anti-skid mechanism comprises an outer screw seat and an inner screw seat, and the inner end of the outer screw seat is provided with the inner screw seat.

Preferably, an inner screw seat-shaped inner cavity is formed in the outer screw seat, the inner screw seat cavity and the inner screw seat are mutually embedded, and both the inner screw seat cavity and the inner screw seat are of octagonal columnar structures.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the anti-falling self-tapping screw can be conveniently assembled and used through the conical outer walls of the outer tapping head and the inner tapping head, namely, the anti-falling self-tapping screw can well drill into the inner parts of fixed surfaces such as plates through the outer wall of the outer tapping head, and when the outer tapping head is damaged during use and is damaged after long-term use, the outer tapping head can be rotated to separate the outer tapping head from the inner tapping head, so that the inner tapping head is used for self-tapping operation, the anti-falling self-tapping screw has good convenience and convenience, is beneficial to assembly operation, and reduces the probability of accidents;

2. the anti-falling self-tapping screw can be connected with the screw connecting rod through the screw connecting hole, the screw connecting rod can be conveniently clamped to rotate according to the large-caliber through groove, the using effect of the screw connecting rod is further improved, the screw connecting rod can be conveniently positioned to use, and meanwhile, the connecting head can be tightly attached to the fixed surface after moving downwards through the use of the connecting head at the bottom end of the screw connecting rod, so that the biting force between the base and the fixed surface is improved, the whole screw is prevented from loosening and falling off, and the anti-falling self-tapping screw is quite safe and stable;

3. this anti-drop self tapping screw is through being the outer screw seat of octagonal column structure and interior screw seat, can make things convenient for structures of screwing such as spanner to carry out the centre gripping and use, and the edge of the outer wall of that outer screw seat can separate outer screw seat and interior screw seat when damage appears in long-time the use simultaneously to use the interior screw seat of outer screw seat inner, use the spanner to carry out the rotational positioning use, very convenient in the centre gripping interior screw seat.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection structure of the outer screw seat and the inner screw seat of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.

In the figure: 1. a stud; 2. a self-tapping mechanism; 3. an outer tapping head; 4. an inner tapping head; 5. locking screws; 6. putting the column on; 7. penetrating a column; 8. a base; 9. penetrating a groove; 10. an anti-drop mechanism; 11. screwing holes; 12. a loading head; 13. an anti-slip mechanism; 14. an external screw seat; 15. an inner screw seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an anti-falling self-tapping screw comprises a stud 1, a self-tapping mechanism 2, an outer tapping head 3, an inner tapping head 4, a locking screw 5, an upper column 6, an inner through column 7, a base 8, a through groove 9, an anti-falling mechanism 10, a screwing hole 11, a loading head 12, an anti-skidding mechanism 13, an outer screw seat 14 and an inner screw seat 15, wherein the self-tapping mechanism 2 is installed at the bottom end of the stud 1, the locking screw 5 penetrates through the middle of the top end of the stud 1, the upper column 6 is installed at the upper end of the stud 1, the inner through column 7 is arranged inside the stud 1, the base 8 is arranged at the upper end of the upper column 6, the through groove 9 penetrates through the left end and the right end of the base 8, the anti-falling mechanism 10 is installed at the inner end of the through groove 9;

the self-tapping mechanism 2 comprises an outer tapping head 3 and an inner tapping head 4, an inner cavity is arranged in the outer tapping head 3, the inner tapping head 4 is arranged in the outer tapping head 3 in a threaded connection mode, the outer walls of the outer tapping head 3 and the inner tapping head 4 are both in a conical shape, the inner wall of a thread embedded in the inner cavity of the outer tapping head 3 is matched with the outer wall of a thread of the inner tapping head 4, the direction of the thread of the inner tapping head 4 is the same as that of a thread of a stud 1, the outer wall of the outer tapping head 3 and the outer wall of the inner tapping head 4 are in conical shape, assembly and use can be conveniently carried out, namely the outer wall of the outer tapping head 3 can well drill into the inner part of a fixed surface such as a plate, when the outer tapping head 3 is damaged during use and is damaged in long-term use, the outer tapping head 3 can be rotated to separate the outer tapping head 3 from the inner tapping head 4, so that the self-tapping operation is carried out, the self, the probability of accidents is reduced;

the anti-falling mechanism 10 comprises a thread connecting hole 11 and a loading head 12, the thread connecting hole 11 is arranged in the middle of the anti-falling mechanism 10, the loading head 12 is fixed at the bottom end of the anti-falling mechanism 10, the thread connecting rods are arranged at the inner ends of the thread connecting holes 11 in a threaded manner and are in threaded connection with the loading head 12, the end parts of the loading head 12 are in a rectangular tooth-shaped structure, the bottom ends of the thread connecting rods are in a screw-shaped structure, the outer wall of the bottom end of each thread connecting rod is embedded with threads, the four thread connecting rods are arranged and are distributed annularly about the center of the base 8, the thread connecting rods can be connected through the thread connecting holes 11, the thread connecting rods can be clamped conveniently to rotate according to the large-caliber through grooves 9, the using effect of the thread connecting rods is further improved, the position adjusting use of the thread connecting rods is facilitated, and the loading head 12 at the bottom ends of the thread connecting rods can be used to enable the loading head 12 to be tightly attached to a fixed surface, the engaging force between the base 8 and the fixed surface is further improved, so that the whole screw is prevented from loosening and falling off, the safety and the stability are high, the loading head 12 can be rotated and taken off from the bottom end of the screw rod, the fixed surface can be drilled according to the conical head at the bottom end of the screw rod, the stability of the screw rod is further improved, the controllability of the screw rod is enhanced, and the performance of the screw rod is enriched;

the anti-skid mechanism 13 comprises an outer screw seat 14 and an inner screw seat 15, the inner end of the outer screw seat 14 is provided with the inner screw seat 15, the inner screw seat 14 is internally provided with an inner screw seat 15-shaped inner cavity, the inner cavity of the outer screw seat 14 and the inner screw seat 15 are mutually embedded, and both are in octagonal columnar structures, the outer screw seat 14 and the inner screw seat 15 which are in the octagonal columnar structures can be conveniently clamped by a wrench and other screwing structures, and meanwhile, when the edge of the outer wall of the outer screw seat 14 is damaged after long-time use, the outer screw seat 14 and the inner screw seat 15 can be separated, so that the inner screw seat 15 at the inner end of the outer screw seat 14 can be used, namely, the inner screw seat 15 is clamped by the wrench for rotating and positioning, the anti-skid mechanism is very convenient and fast, the length of the whole naked body can be adjusted according to the movement between the stud 1 and the upper stud 6, the upper stud 6 in the stud 1 can be conveniently and better used by the rotation of the locking screw 5, and the inner chamber of double-screw bolt 1 and the outer wall of last post 6 are octagonal column structure, then can make things convenient for the interlock that carries on firmly between the two, make things convenient for promptly to carry out while rotatory operation between double-screw bolt 1 and the last post 6, very convenient and practical.

The working principle is as follows: for the anti-falling self-tapping screw, firstly, the outer tapping head 3 and the conical outer wall of the inner tapping head 4 can be conveniently assembled for use, namely, the outer tapping head 3 can well drill into the inner part of a fixed surface such as a plate and the like through the outer wall of the outer tapping head 3, when the outer tapping head 3 is damaged in use and is damaged in long-term use, the outer tapping head 3 can be rotated to separate the outer tapping head 3 from the inner tapping head 4, then the inner tapping head 4 is used for self-tapping operation, the assembly operation is facilitated, the probability of accidents is reduced, the tapping rod can be connected through the tapping hole 11, the tapping rod can be conveniently clamped to rotate according to the large-caliber through groove 9, the use effect of the tapping rod is improved, the tapping rod can be conveniently used for positioning, and meanwhile, the connecting head 12 at the bottom end of the tapping rod can be used through the connecting hole, the connecting head 12 can be tightly attached to the fixed surface after moving downwards, so that the engaging force between the base 8 and the fixed surface is improved, the situation that the whole screw is loosened and falls off is prevented, the safety and the stability are very high, meanwhile, the connecting head 12 can be rotationally taken down from the bottom end of the screw rod, so that the fixed surface can be drilled according to the conical head at the bottom end of the screw rod, the stability of the connecting head is further improved, the controllability of the connecting head is enhanced, the performance of the connecting head is enriched, the outer screw seat 14 and the inner screw seat 15 which are of the columnar structures can be convenient for clamping by screwing structures such as a spanner, and meanwhile, when the edge of the outer wall of the outer screw seat 14 is damaged after being used for a long time, the outer screw seat 14 and the inner screw seat 15 can be separated, so that the inner screw seat 15 at the inner end of the outer screw seat 14 can be used, the spanner is used for clamping the inner screw seat 15 for rotational positioning, very convenient, and can be according to the activity between double-screw bolt 1 and the last post 6, adjust the length of whole naked body, convenient better use, can fix a position last post 6 in the double-screw bolt 1 through the rotation of locking screw 5 simultaneously, and the inner chamber of double-screw bolt 1 and the outer wall of last post 6 are octagon column structure, then can make things convenient for the interlock that carries on firmly between the two, make things convenient for promptly to carry out while rotatory operation between double-screw bolt 1 and the last post 6, very convenient and practical, just so accomplish the use of whole anti-drop self tapping screw.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-drop self tapping screw, includes double-screw bolt (1) and anti-disengaging mechanism (10), its characterized in that: self-tapping mechanism (2) are installed to the bottom of double-screw bolt (1), lock screw (5) are worn to be equipped with in the top middle part of double-screw bolt (1), and the upper end of double-screw bolt (1) installs upper prop (6), wear post (7) in the inside has been seted up of double-screw bolt (1), settle the upper end of upper prop (6) has base (8), and base (8) about both ends all wear to be equipped with wearing groove (9), anti-disengaging mechanism (10) are installed in the inner of wearing groove (9), anti-skidding mechanism (13) are installed on the top of base (8).

2. An anti-drop self-tapping screw as defined in claim 1, wherein: the self-tapping mechanism (2) comprises an outer tapping head (3) and an inner tapping head (4), wherein an inner cavity is formed in the outer tapping head (3) and the inner tapping head (4) is arranged in the outer tapping head through threaded connection.

3. An anti-drop self-tapping screw as claimed in claim 2, wherein: the outer wall of the outer tapping head (3) and the outer wall of the inner tapping head (4) are both in a conical shape, the inner wall of a thread embedded in the inner cavity of the outer tapping head (3) is matched with the outer wall of the thread of the inner tapping head (4), and the direction of the thread of the inner tapping head (4) is the same as that of the thread of the stud (1).

4. An anti-drop self-tapping screw as defined in claim 1, wherein: the anti-falling mechanism (10) comprises a threaded hole (11) and a continuous loading head (12), the threaded hole (11) is arranged in the middle of the anti-falling mechanism (10), and the continuous loading head (12) is fixed at the bottom end of the anti-falling mechanism (10).

5. An anti-drop self-tapping screw as claimed in claim 4, wherein: the inner end of the screw connection hole (11) is provided with a screw connection rod in a threaded manner, the screw connection rod is in threaded connection with the loading head (12), and the end part of the loading head (12) is in a rectangular tooth-shaped structure.

6. An anti-drop self-tapping screw as claimed in claim 5, wherein: the bottom of spiro union pole is screw column structure, and the bottom outer wall of spiro union pole inlays and has the screw thread, and the spiro union pole is provided with four moreover to the spiro union pole is the annular distribution about the center of base (8).

7. An anti-drop self-tapping screw as defined in claim 1, wherein: the anti-skid mechanism (13) comprises an outer screw seat (14) and an inner screw seat (15), and the inner end of the outer screw seat (14) is provided with the inner screw seat (15).

8. An anti-drop self-tapping screw as claimed in claim 7, wherein: an inner screw seat (15) shaped inner cavity is formed in the outer screw seat (14), the inner cavity of the outer screw seat (14) and the inner screw seat (15) are mutually embedded, and the inner cavity and the inner screw seat are of octagonal columnar structures.