CN213981565U

CN213981565U - Low-screwing-in torsion type wood screw

Info

Publication number: CN213981565U
Application number: CN202022134808.2U
Authority: CN
Inventors: 陈吴斌
Original assignee: Haiyan Longcheng Hardware Technology Co Ltd
Current assignee: Haiyan Longcheng Hardware Technology Co Ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-08-17
Anticipated expiration: 2030-09-25

Abstract

The utility model discloses a low screw in torsion type wood screw relates to screw technical field. The utility model comprises a screw rod, wherein a tip is arranged at one end of the screw rod, first threads are arranged around the screw rod and the tip, second threads are arranged around the screw rod, and the first threads and the second threads are staggered; the second threads are arranged at the middle lower part of the screw rod in a staggered surrounding mode, threads of the second threads are lower than threads of the first threads, and the thread pitch of the second threads is larger than that of the first threads. The utility model discloses a first screw thread that sets up in screw rod week side can play the trompil effect under the condition that wooden finished piece does not have the pre-drilled hole to improve work efficiency, through the second screw thread that sets up, at screw in-process, can additionally cut out a thread line in the screw, thereby reserve for the extra accommodation space of saw-dust, reduced the saw-dust and blockked up the condition that the screw caused wooden finished piece inflation fracture.

Description

Low-screwing-in torsion type wood screw

Technical Field

The utility model belongs to the technical field of the screw, especially, relate to low screw in torsion type wood screw.

Background

The wood screw is similar to a machine screw, but the thread on the screw rod is a special thread for the wood screw, and can be directly screwed into a wood component (or a part) for tightly connecting a metal (or nonmetal) part with a through hole and the wood component. This connection is also referred to as a detachable connection.

Most of wood screws on the market are easy to crack the surface of a wood product when being screwed into the wood product manually or by using an electric tool, and when the wood product with high hardness is encountered, the wood screw needs to be screwed with large force, and the surface of the wood product is easy to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low screw in torsion type wood screw, through the first screw thread that sets up in screw rod week side, can play the trompil effect under the condition that wooden finished piece does not have the pre-drilling hole to improve work efficiency, through the second screw thread that sets up, at screw in-process, can additionally cut out a thread line in the screw, thereby reserve for the extra accommodation space of saw-dust, reduced the saw-dust and blockked up the condition that the screw caused wooden finished piece inflation fracture, 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:

the low-screwing-in torsion type wood screw comprises a screw rod, wherein a pointed end is arranged at one end of the screw rod, first threads are arranged on the periphery of the screw rod and the pointed end, second threads are arranged on the periphery of the screw rod, and the first threads and the second threads are staggered;

the second threads are arranged at the middle lower part of the screw rod in a staggered surrounding mode, threads of the second threads are lower than threads of the first threads, and the thread pitch of the second threads is larger than that of the first threads.

Optionally, a screw head is mounted on the upper end of the screw.

Optionally, the periphery of the screw head is provided with an anti-slip groove.

Optionally, the upper side of the screw head is provided with a hexagonal hole.

Optionally, a straight hole is formed in the upper side of the head of the screw, and the straight hole is located in the upper side of the hexagonal hole.

Optionally, the circumference of the pointed end is provided with a reaming edge, and the reaming edge intersects with the first thread.

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

the utility model discloses an embodiment can play the trompil effect under the condition that wooden finished piece does not have the pre-drilling through the first screw thread that sets up week side at the screw rod to improve work efficiency, through the second screw thread that sets up, at screw in-process, can additionally cut out a thread line in the screw, thereby reserve for the extra accommodation space of saw-dust, reduced the saw-dust and blockked up the condition that the screw caused wooden finished piece inflation fracture.

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 side perspective view of an embodiment of the present invention;

fig. 3 is a schematic perspective view of a screw head according to an embodiment of the present invention;

fig. 4 is a schematic view of a screw head structure according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

the screw comprises a screw rod 1, a screw head 2, a pointed end, a screw 3, a first thread 4, a second thread 5, a reaming edge 6, an anti-skidding groove 7, a hexagonal hole 8 and a straight hole 9.

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. 1-4, in the present embodiment, a low-torque wood screw is provided, which includes: the screw comprises a screw 1, wherein a tip 3 is arranged at one end of the screw 1, first threads 4 are arranged on the peripheral sides of the screw 1 and the tip 3, second threads 5 are arranged on the peripheral sides of the screw 1, and the first threads 4 and the second threads 5 are staggered in threads;

the second threads 5 are arranged at the middle lower part of the screw rod 1 in a staggered surrounding mode, the thread pitch of the second threads 5 is lower than that of the first threads 4, and the thread pitch of the second threads 5 is larger than that of the first threads 4.

The application of one aspect of the embodiment is as follows: when screwing the screw rod into wooden finished piece, first screw thread 4 and second screw thread 5 pass through in the drive screw in wooden finished piece of screw rod 1, and a thread is additionally cut out through self in the screw to second screw thread 5, and the thread is accomodate the saw-dust of first screw thread 4 and the 5 cutting of second screw thread, can reduce the condition of wooden finished piece fracture.

Through the first screw thread 4 that sets up in 1 week side of screw rod, can play the trompil effect under the condition that wooden finished piece does not have the pre-drilled hole to improve work efficiency, through the second screw thread 5 that sets up, at screw in-process, can additionally cut out a thread line in the screw, thereby reserve for the extra accommodation space of saw-dust, reduced the saw-dust and blockked up the condition that the screw caused wooden finished piece inflation fracture.

The screw 1 of the present embodiment has a screw head 2 attached to the upper end thereof.

In the embodiment, the periphery of the screw head 2 is provided with an anti-slip groove 7. Through the antiskid groove 7 that sets up, enable the user and rotate the screw with light hand to accomplish the preliminary fixed to the screw.

In the embodiment, a hexagonal hole 8 is formed on the upper side of the screw head 2.

In the embodiment, the upper side of the screw head 2 is provided with a straight hole 9, and the straight hole 9 is positioned on the upper side of the hexagonal hole 8. Through the arranged straight hole 9, the screw can be adapted to different tools.

The tip 3 of the present embodiment is provided with a reamer blade 6 on the peripheral side, and the reamer blade 6 crosses the first thread 4. Through the reaming sword 6 that sets up, can be at the in-process reaming by oneself of the wooden finished piece of twist, the extrusion force that makes wooden finished piece receive reduces to wooden finished piece surface cracking's the condition has been reduced.

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. A low-screwing-torque type wood screw, characterized by comprising: the screw rod (1), one end of the screw rod (1) is provided with a tip (3), first threads (4) are arranged on the peripheral sides of the screw rod (1) and the tip (3), second threads (5) are arranged on the peripheral sides of the screw rod (1), and the first threads (4) and the second threads (5) are staggered in threads;

the second threads (5) are arranged on the middle lower portion of the screw rod (1) in a staggered surrounding mode, threads of the second threads (5) are lower than threads of the first threads (4), the thread pitch of the second threads (5) is larger than that of the first threads (4), the periphery of the pointed end (3) is provided with a hole expanding blade (6), and the hole expanding blade (6) is crossed on the first threads (4).

2. A low torque driving type wood screw according to claim 1, wherein the screw head (2) is installed at the upper end of the screw shaft (1).

3. A low torque wood screw according to claim 2 wherein the screw head (2) is provided with anti-slip grooves (7) around its periphery.

4. A low torque wood screw according to claim 2 wherein the head (2) of the screw is provided with hexagonal holes (8) on the upper side.

5. A low torque wood screw according to claim 2 wherein the head (2) of the screw is formed with a slotted hole (9) at the upper side and the slotted hole (9) is formed at the upper side of the hexagonal hole (8).