CN213839201U

CN213839201U - Anti-loosening unidirectional self-tapping locking screw

Info

Publication number: CN213839201U
Application number: CN202022726314.3U
Authority: CN
Inventors: 姚永祥
Original assignee: Haiyan Jiahai Hardware Co ltd
Current assignee: Haiyan Jiahai Hardware Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-07-30
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses an one-way self tapping locking screw of locking moving relates to self tapping locking screw technical field. The utility model discloses a first screw, first screw internal rotation fit has the second screw, and the week side of second screw is fixed with the fixation clamp, and week side of first screw is equipped with first external screw thread, and week side on first screw upper portion has seted up a plurality of square grooves, and week side of second screw is equipped with the second external screw thread, has seted up the screw hole corresponding with the second external screw thread in the first screw. The utility model discloses an installing of second screw can extrude first screw, makes first screw receive extrusion inflation, makes the first screw that the spiral entered into in the product be difficult for the pine to take off, installing of fixation clamp can fix the second screw, makes the second screw be difficult for breaking away from first screw, makes that first screw can be fixed the product for a longer time, installing of first external screw thread can make this screw spiral enter into the inside of product to fix the product.

Description

Anti-loosening unidirectional self-tapping locking screw

Technical Field

The utility model belongs to the technical field of self-tapping locking screw, especially, relate to locking one-way self-tapping locking screw that moves.

Background

The self-tapping locking screw (commonly called triangular bolt) has the features of reduced fastening man-hour, stronger locking and anti-loosing functions, etc. it is widely used in automobile and motorcycle fields, general bolt fastening needs to pre-process screw thread on fastening object or use nut, while the cross section of its screw thread part is triangular circular, the screw thread tooth form is the same as common one, but its effective diameter is larger than common screw thread, and it is equipped with conical guide part at the front end of screw, the screw can extrude internal screw thread on the machine body prefabricated unthreaded hole with plastic deformation ability in normal screwing mode, thus realizing interference connection.

Most of the existing anti-loosening one-way self-tapping locking screws are easy to loosen after entering products, and the fixing time of the existing anti-loosening one-way self-tapping locking screws for the products is short.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-looseness one-way self tapping locking screw, through installing of second screw, can extrude first screw, make first screw receive extrusion inflation, make the difficult pine of first screw that the spiral entered into in the product take off, installing of fixation clamp, can fix the second screw, make the second screw be difficult for breaking away from first screw, make that first screw can be longer fix the product, installing of first external screw thread, can make this screw spiral enter into the inside of product, thereby fix the product, the problem that exists among the above-mentioned prior art has been solved.

In order to achieve the purpose, the utility model is realized by the following technical proposal:

locking one-way self tapping locking screw that moves, including first screw, first screw normal running fit has the second screw, and week side of second screw is fixed with the fixation clamp, and week side of first screw is equipped with first external screw thread, and week side on first screw upper portion has seted up a plurality of square grooves, and the cross notch has been seted up to the upside of second screw, and week side of second screw is equipped with the second external screw thread, has seted up the screw hole corresponding with the second external screw thread in the first screw.

Optionally, the first screw is formed by splicing a first cylinder and a first regular hexagonal prism in sequence, the first cylinder is located on the lower side of the first regular hexagonal prism, the diameter of the circumscribed circle of the first regular hexagonal prism is larger than that of the first cylinder, a sharp corner is arranged on the lower side of the first cylinder, and the length of the first cylinder is larger than that of the first regular hexagonal prism.

Optionally, the first external thread is located on the periphery of the first cylinder, one end of the first external thread is attached to one side of the first regular hexagonal prism, one side of the first external thread is located on one side of the sharp corner, and the sharp corner is located on the lower side of the first external thread.

Optionally, the second screw is formed by sequentially splicing a circular truncated cone, a second cylinder and a second regular hexagonal prism, the upper side of the circular truncated cone is attached to the lower side of the second cylinder, and the upper side of the second cylinder is attached to the lower side of the second regular hexagonal prism.

Optionally, the second external thread is located the week side of round platform, and the diameter of round platform downside is greater than the diameter of round platform upside, and the round platform is located first cylinder, and the round hole has been seted up to first regular hexagonal prism upside, and the round hole runs through first regular hexagonal prism, and the round hole is linked together with the screw hole, and the second cylinder is located the round hole, and the cross notch is located the upside of second regular hexagonal prism, and second regular hexagonal prism is located the upside of first regular hexagonal prism.

Optionally, the fixation clamp is of a U-shaped structure, the fixation clamp is located on the periphery of the second cylinder, one end of the fixation clamp is fixed to the second cylinder, the other end of the fixation clamp is located in the square groove, and the fixation clamp is located between the second regular hexagonal prism and the circular truncated cone.

The embodiment of the utility model has the following beneficial effect:

the utility model discloses an embodiment can extrude first screw through installing of second screw, makes first screw receive extrusion inflation, makes the difficult pine of first screw that the spiral entered into in the product take off, and installing of fixation clamp can fix the second screw, makes the second screw be difficult for breaking away from first screw, makes that first screw can be fixed the product for a longer time, and installing of first external screw thread can make the inside of this screw spiral entry product to fix the product.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of an embodiment of the present invention;

fig. 3 is a schematic diagram of a square groove structure according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

the structure comprises a first screw 1, a second screw 2, a fixing clamp 3, a first cylinder 101, a first regular hexagonal prism 102, a square groove 103, a first external thread 104, a second cylinder 201, a second regular hexagonal prism 202 and a circular truncated cone 203.

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

Referring to fig. 1-3, in the present embodiment, a loosening-preventing one-way thread forming screw is provided, which includes: first screw 1, first screw 1 internal rotation fit has second screw 2, and the week side of second screw 2 is fixed with fixation clamp 3, and week side of first screw 1 is equipped with first external screw thread 104, and week side on first screw 1 upper portion has seted up a plurality of square grooves 103, and the cross notch has been seted up to the upside of second screw 2, and week side of second screw 2 is equipped with the second external screw thread, has seted up the screw hole corresponding with the second external screw thread in the first screw 1.

The application of one aspect of the embodiment is as follows: when the screw is used, firstly, a first screw 1 is screwed into a product to fix the product, then the lower part of a fixing clamp 3 is pulled to enable the lower part of the fixing clamp 3 to be separated from a square groove 103, then a second screw 2 is screwed, the fixing clamp 3 moves to one side far away from a first external thread 104, the fixing clamp 3 rotates around the first screw 1, then the second screw 2 extrudes the first screw 1, then the first screw 1 expands, the expansion of the first screw 1 extrudes the product, then the fixing clamp 3 is loosened, the lower part of the fixing clamp 3 enters the square groove 103, then the fixing clamp 3 limits the rotation of the second screw 2, after the second screw 2 is limited, the extrusion of the first screw 1 by the second screw 2 is kept, then the deformation of the first screw 1 is kept, and the first screw 1 is not easy to separate from the product.

Through installing of second screw 2, can extrude first screw 1, make first screw 1 receive extrusion inflation, make the first screw 1 of spiral entry in the product difficult pine take off, installing of fixation clamp 3, can fix second screw 2, make second screw 2 be difficult for breaking away from first screw 1, make that first screw 1 can be fixed the product for a longer time, installing of first external screw thread 104, can make the inside of this screw spiral entry product, thereby fix the product.

The first screw 1 of this embodiment is formed by splicing a first cylinder 101 and a first regular hexagonal prism 102 in sequence, and the first cylinder 101 is located the downside of the first regular hexagonal prism 102, the diameter of the circumscribed circle of the first regular hexagonal prism 102 is greater than the diameter of the first cylinder 101, the downside of the first cylinder 101 is provided with a sharp corner, the length of the first cylinder 101 is greater than the length of the first regular hexagonal prism 102, and the installation of the first screw 1 can fix a product.

The first external thread 104 of this embodiment is located the week side of first cylinder 101, and the one end of first external thread 104 is laminated with one side of first regular hexagonal prism 102 mutually, and one side of first external thread 104 is located the one side of closed angle, and the closed angle is located the downside of first external thread 104, and the setting of closed angle makes first screw 1 enter into in the product more easily.

The second screw 2 of this embodiment is formed by splicing a round table 203, a second cylinder 201, and a second regular hexagonal prism 202 in sequence, the upside of round table 203 is attached to the lower side of second cylinder 201, the upside of second cylinder 201 is attached to the lower side of second regular hexagonal prism 202, and the setting of round table 203 can extrude first screw 1.

The second external thread of this embodiment is located the week side of round platform 203, the diameter of round platform 203 downside is greater than the diameter of round platform upside, round platform 203 is located first cylinder 101, the round hole has been seted up to first regular hexagonal prism 102 upside, the round hole runs through first regular hexagonal prism 102, the round hole is linked together with the screw hole, second cylinder 201 is located the round hole, the cross notch is located the upside of the regular hexagonal prism 202 of second, the regular hexagonal prism 202 of second is located the upside of first regular hexagonal prism 102, the setting of the regular hexagonal prism 202 of second, be convenient for screw up second screw 2.

The fixation clamp 3 of this embodiment is U type structure, and fixation clamp 3 is located the week side of second cylinder 201, and the one end of fixation clamp 3 is fixed on second cylinder 201, and the other end of fixation clamp 3 is located the square groove, and fixation clamp 3 is located between the positive hexagonal prism 202 of second and round platform 203, and the second screw 2 can be fixed in installing of fixation clamp 3.

The above embodiments may be combined with each other.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Claims

1. Locking one-way self tapping locking screw that moves, its characterized in that includes: the fixing device comprises a first screw (1), wherein a second screw (2) is rotationally matched in the first screw (1), a fixing clamp (3) is fixed on the peripheral side of the second screw (2), a first external thread (104) is arranged on the peripheral side of the first screw (1), a plurality of square grooves (103) are formed in the peripheral side of the upper portion of the first screw (1), and a cross-shaped notch is formed in the upper side of the second screw (2);

second external threads are arranged on the peripheral sides of the second screws (2), and threaded holes corresponding to the second external threads are formed in the first screws (1).

2. A one-way self-tapping locking screw with looseness prevention according to claim 1, wherein the first screw (1) is formed by sequentially splicing a first cylinder (101) and a first regular hexagonal prism (102), the first cylinder (101) is located on the lower side of the first regular hexagonal prism (102), the diameter of the circumscribed circle of the first regular hexagonal prism (102) is larger than that of the first cylinder (101), the lower side of the first cylinder (101) is provided with a sharp corner, and the length of the first cylinder (101) is larger than that of the first regular hexagonal prism (102).

3. A one-way self-tapping locking screw with looseness prevention according to claim 2, wherein the first male screw (104) is located on a peripheral side of the first cylinder (101), one end of the first male screw (104) abuts one side of the first regular hexagonal prism (102), one side of the first male screw (104) is located on a side of a sharp corner, and the sharp corner is located on a lower side of the first male screw (104).

4. A one-way self-tapping locking screw with looseness prevention as claimed in claim 3, wherein the second screw (2) is formed by sequentially splicing a circular truncated cone (203), a second cylinder (201) and a second regular hexagonal prism (202), wherein the upper side of the circular truncated cone (203) is attached to the lower side of the second cylinder (201), and the upper side of the second cylinder (201) is attached to the lower side of the second regular hexagonal prism (202).

5. The anti-loosening one-way self-tapping locking screw as claimed in claim 4, wherein the second external thread is located on the periphery of the circular truncated cone (203), the diameter of the lower side of the circular truncated cone (203) is larger than that of the upper side of the circular truncated cone, the circular truncated cone (203) is located in the first cylinder (101), a round hole is formed in the upper side of the first regular hexagonal prism (102) and penetrates through the first regular hexagonal prism (102), the round hole is communicated with the threaded hole, the second cylinder (201) is located in the round hole, the cross-shaped notch is located on the upper side of the second regular hexagonal prism (202), and the second regular hexagonal prism (202) is located on the upper side of the first regular hexagonal prism (102).

6. A one-way self-tapping locking screw with looseness prevention according to claim 5, wherein the fixing clip (3) is of a U-shaped structure, the fixing clip (3) is located on the periphery side of the second cylinder (201), one end of the fixing clip (3) is fixed to the second cylinder (201), the other end of the fixing clip (3) is located in the square groove, and the fixing clip (3) is located between the second regular hexagonal prism (202) and the circular truncated cone (203).