CN215370515U

CN215370515U - High leakproofness long-life self-tapping screw

Info

Publication number: CN215370515U
Application number: CN202120904414.2U
Authority: CN
Inventors: 徐惠华
Original assignee: Jiaxing Huabin Hardware Technology Co ltd
Current assignee: Jiaxing Huabin Hardware Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-12-31
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a high-sealing and long-service-life self-tapping screw which comprises a screw body, a self-tapping head and a screw raised head, wherein the self-tapping head is arranged at one end of the screw body, the screw raised head is connected to the other end of the screw body, a metal cushion block and a rubber cushion block are arranged at the bottom of the screw raised head, and the top end of the rubber cushion block is clamped in the metal cushion block. This novel installation back and treat that the sealed effect between the thread groove on the installation face is good, the difficult corrosion of screw, the plush copper of screw possesses protective structure after the installation, long service life is fit for extensively using widely.

Description

High leakproofness long-life self-tapping screw

Technical Field

The utility model relates to the technical field of connecting pieces, in particular to a tapping screw with high sealing property and long service life.

Background

The self-tapping screw is used as a common metal connecting piece and plays an important role in industries such as furniture production and the like.

The conventional tapping screw has the following disadvantages: 1. the sealing effect between the screw and the thread groove on the surface to be installed is poor after installation, and the screw is easy to rust; 2. the raised head of the screw does not have a protective structure after being installed, and the service life is short. Therefore, a tapping screw with high sealing performance and long service life is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a tapping screw with high sealing property and long service life, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a high leakproofness long-life self-tapping screw, includes the screw body, self-tapping head and screw plush copper, screw body one end is provided with the self-tapping head, the screw body other end is connected with the screw plush copper, screw plush copper bottom is provided with metal cushion and rubber cushion, the metal cushion is located in the card of rubber cushion top.

Furthermore, the PVC sheath is clamped outside the screw raised head, a convex block is arranged at the top of the PVC sheath, and personnel can conveniently apply external force to the PVC sheath by screwing up the convex block, so that the PVC sheath can be disassembled and assembled as required.

Furthermore, the top of the screw raised head is provided with a cross groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the self-tapping screw with high sealing property and long service life, a cross groove can be used for enabling a person to conveniently insert the cross into the cross groove to rotate, the screw boss rotates, so that the self-tapping head is driven to rotate, a reserved hole on a surface to be installed is tapped, the metal cushion block and the rubber cushion block are arranged at the bottom of the screw boss, the top end of the rubber cushion block is clamped into the metal cushion block, one end of the metal cushion block is in contact with the rubber cushion block, the contact area of one end of the rubber cushion block can be increased, the rubber cushion block is more stable, the other end of the rubber cushion block is in contact with the surface to be installed, gaps between the screw boss and the surface to be installed can be effectively filled, the sealing effect between the screw boss and a thread groove on the surface to be installed is improved, and a screw body is not prone to being rusted.

2. According to the self-tapping screw with high sealing property and long service life, a worker can conveniently apply external force to the PVC sheath by screwing the convex block, the PVC sheath can be disassembled and assembled as required, and when the PVC sheath is sleeved on the outer side of the convex block, the screw raised head can be effectively protected, so that the screw raised head has a protection structure, and the service life is longer.

Drawings

Fig. 1 is a schematic view showing the overall structure of a tapping screw having high sealing performance and long life according to the present invention.

FIG. 2 is a schematic view of the bottom structures of a metal cushion block, a rubber cushion block and a PVC sheath of the tapping screw with high sealing property and long service life.

FIG. 3 is a schematic structural diagram of a high-sealing and long-life tapping screw of the utility model after a metal cushion block, a rubber cushion block and a PVC sheath are clamped.

In the figure: 1. a screw body; 2. a tapping head; 3. a metal cushion block; 4. a rubber cushion block; 5. a PVC sheath; 6. a bump; 7. a screw raised head; 8. a cross-shaped groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1-3, the self-tapping screw with high sealing performance and long service life comprises a screw body 1, a self-tapping head 2 and a screw raised head 7, wherein the self-tapping head 2 is arranged at one end of the screw body 1, the screw raised head 7 is connected to the other end of the screw body 1, a metal cushion block 3 and a rubber cushion block 4 are arranged at the bottom of the screw raised head 7, and the top end of the rubber cushion block 4 is clamped in the metal cushion block 3.

The outer side of the raised head 7 of the screw is clamped with a PVC sheath 5, and the top of the PVC sheath 5 is provided with a convex block 6.

In this embodiment, as shown in fig. 1, a worker can conveniently apply an external force to the PVC sheath 5 by screwing the protrusion 6, and can disassemble and assemble the PVC sheath 5 as required.

Wherein, the top of the screw raised head 7 is provided with a cross groove 8.

In the embodiment, as shown in fig. 1, the cross-shaped groove 8 is used for facilitating a person to insert the cross-shaped block into the cross-shaped groove 8 to rotate so as to rotate the screw raised head 7.

It should be noted that, the utility model is a self-tapping screw with high sealing performance and long service life, when in use, a cross groove 8 can be conveniently used by a person to insert into the cross groove 8 to rotate by using a cross, a screw boss 7 is rotated to drive a self-tapping head 2 to rotate, a reserved hole on a surface to be installed is tapped, a metal cushion block 3 and a rubber cushion block 4 are used at the bottom of the screw boss 7, the top end of the rubber cushion block 4 is clamped into the metal cushion block 3, one end of the metal cushion block 3 is contacted with the rubber cushion block 4, the contact area of one end of the rubber cushion block 4 can be increased, the rubber cushion block 4 is more stable, the other end of the rubber cushion block 4 is contacted with the surface to be installed, a gap between the screw boss 7 and the surface to be installed can be effectively filled, the sealing effect between the screw body and a thread groove on the surface to be installed is improved, the screw body 1 is not easy to rust, the person tightens the boss 6, the convenience is applyed external force to PVC sheath 5, carries out the dismouting with PVC sheath 5 as required, when 5 covers in the lug 6 outsides of PVC sheath, can effectively protect screw plush-out 7 for screw plush-out 7 possesses protective structure, and the life-span when using is longer.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a high leakproofness long-life self-tapping screw, includes screw body (1), self-tapping head (2) and screw plush copper (7), its characterized in that: the self-tapping screw is characterized in that a self-tapping head (2) is arranged at one end of the screw body (1), a screw raised head (7) is connected to the other end of the screw body (1), a metal cushion block (3) and a rubber cushion block (4) are arranged at the bottom of the screw raised head (7), and the top end of the rubber cushion block (4) is clamped in the metal cushion block (3).

2. A high-sealing long-life tapping screw as claimed in claim 1, wherein: the outer side of the raised head (7) of the screw is clamped with a PVC sheath (5), and the top of the PVC sheath (5) is provided with a convex block (6).

3. A high-sealing long-life tapping screw as claimed in claim 1, wherein: the top of the screw raised head (7) is provided with a cross groove (8).