CN216554851U

CN216554851U - FDS leakproofness self-flowing drilling screw

Info

Publication number: CN216554851U
Application number: CN202122647207.6U
Authority: CN
Inventors: 方建平
Original assignee: Shanghai Nate Auto Standard Parts Co ltd
Current assignee: Shanghai Nate Auto Standard Parts Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2022-05-17
Anticipated expiration: 2031-11-01

Abstract

The utility model relates to the technical field of self-flow drilling screws, and discloses an FDS (fully drawn Soxhlet) sealing self-flow drilling screw which comprises a head, wherein a rod part is arranged below the head, a gasket is sleeved on the rod part, the lower end of the rod part is provided with a thread, a sealing part is arranged on the rod part corresponding to the lower part of the gasket, the scheme utilizes high temperature and pressure generated during FDS flow drilling to overflow a plastic, pre-coated adhesive and rubber extrusion deformation part to the upper end of the rod part and the thread, the sealing performance of the scheme is improved, the FDS air leakage and liquid leakage problem is fundamentally solved by quick one-time installation, a recess is arranged on the lower wall surface of the head, the rod part is fixedly connected with the inner wall of the top of the recess, six groups of upward bent bulges are integrally formed on one side, close to a central point, and the shapes of the bulges are matched with the recess.

Description

FDS leakproofness self-flowing drilling screw

Technical Field

The utility model relates to the technical field of self-flowing drilling screws, in particular to an FDS (fully drawn Standard) sealing self-flowing drilling screw.

Background

Along with the new energy and light weight of an automobile, the interface (the interface contains aluminum sections) of dissimilar materials is connected, wherein the requirement on the sealing performance of internal and external connection in a battery pack is a special characteristic related to safety, the internal connection is a frame structure, so that the current technology needs to use the single-sided connection technology of FDS, and the frame structure exists for a long time due to the large workpiece: the factors such as deflection factor, processing deviation factor, repetition of the gun head of the FDS equipment and the like are accumulated, and the lower part of the FDS is often not attached to an interface (a gap visible to naked eyes) after the FDS is installed.

The existing method for installing the FDS is characterized in that after the FDS is installed, a sealant is integrally coated on the periphery of the head of the existing FDS, the surface of the sealant is cured for 8 hours, the sealant is integrally cured for 24 hours, and the FDS is transported and delivered after the integral curing, so that the installation and sealing process of the self-flow drilling screw cannot be rapidly completed in one step.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an FDS sealing self-flowing drilling screw, which solves the problems.

(II) technical scheme

In order to achieve the above purpose, the utility model provides the following technical scheme: the utility model provides a FDS leakproofness bores screw automatically, includes the head, the below of head is provided with pole portion, the gasket has been cup jointed on the pole portion, the lower extreme of pole portion is seted up threadedly, and the below that corresponds the gasket on the pole portion is provided with the sealing member, and this scheme utilizes FDS to flow to produce high temperature and pressure when boring with plastics, precoating, rubber extrusion deformation part overflow to the upper end and the screw thread of pole portion, increases the leakproofness of this scheme, and FDS gas leakage, weeping problem are fundamentally solved in quick disposable installation.

Preferably, the lower wall surface of the head part is provided with a recess, and the rod part is fixedly connected with the inner wall of the top of the recess.

Preferably, one side of the gasket, which is close to the central point, is integrally formed with six groups of protrusions which are bent upwards, and the shapes of the protrusions are matched with those of the recesses.

Preferably, the sealing element is a glue coating area, the glue coating area is located at a part, which is not provided with threads, of the upper end of the rod part, and glue or plastic can be injected at the joint of the rod part and the threads by using an injection molding machine.

Preferably, a tapered part is fixedly mounted at the lower end of the rod part, and the lower end of the tapered part is oval.

Preferably, the sealing element comprises an elastic part, the elastic part is sleeved on the rod part and is positioned below the gasket, and the deformation of the elastic part can fill the head part, the recess and the gap between the gaskets when the sealing element is installed.

(III) advantageous effects

Compared with the prior art, the utility model provides an FDS sealing self-flowing drilling screw, which has the following beneficial effects:

1. this FDS leakproofness is from flowing and bores screw, this scheme utilizes production high temperature and pressure when FDS flows and bores with plastics, glue of precoating, rubber extrusion deformation part overflow to the upper end and the screw thread of pole portion, increases the leakproofness of this scheme, and quick disposable installation fundamental solution FDS leaks gas, the weeping problem.

2. This FDS leakproofness bores screw automatically, and this scheme utilizes FDS to flow and produces high temperature and pressure when boring for the deformation of elastic component deformation elastic component can fill head, sunken and the clearance between the gasket, increases the leakproofness of this scheme, and FDS gas leakage, weeping problem are fundamentally solved to quick disposable installation.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic view of a gasket according to the present invention;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic cross-sectional view of the present invention.

In the figure: 1. a head portion; 2. recessing; 3. a gasket; 4. a protrusion; 5. an elastic member; 6. a thread; 7. a rod portion; 8. a taper portion.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an FDS sealing self-flow drilling screw comprises a head 1, a rod 7 is arranged below the head 1, a gasket 3 is sleeved on the rod 7, a thread 6 is arranged at the lower end of the rod 7, a sealing element is arranged on the rod 7 and corresponds to the lower portion of the gasket 3, compared with the existing method that after the FDS is installed, the sealing adhesive is integrally coated on the periphery of the head, the surface of the sealing adhesive is cured for 8 hours, the sealing adhesive is integrally cured for 24 hours, and the sealing adhesive is transported and delivered after the integral curing.

Furthermore, the lower wall surface of the head part 1 is provided with a recess 2, and the rod part 7 is fixedly connected with the inner wall of the top of the recess 2.

Furthermore, one side of the gasket 3 close to the central point is integrally formed with six groups of protrusions 4 which are bent upwards, and the shapes of the protrusions 4 are matched with those of the recesses 2.

Further, the sealing element is a glue coating area which is positioned at the part of the upper end of the rod part 7 without the thread 6, and glue or plastic can be injected at the joint of the rod part 7 and the thread 6 by using an injection molding machine.

Further, a tapered portion 8 is fixedly attached to the lower end of the rod portion 7, and the lower end of the tapered portion 8 is elliptical.

Further, the sealing element comprises an elastic piece 5, the elastic piece 5 is sleeved on the rod part 7, the elastic piece 5 is located below the gasket 3, and the deformation of the elastic piece 5 can fill the gap between the head part 1, the recess 2 and the gasket 3 during installation.

When the scheme is used, the plastic, the precoating glue and the rubber extrusion deformation part overflow to the upper end of the rod part 7 and the thread 6 by utilizing high temperature and pressure generated during the FDS flow drilling, the sealing performance of the scheme is improved, and the problems of gas leakage and liquid leakage of the FDS are fundamentally solved by quick one-time installation.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An FDS leakproofness self-drilling screw, includes head (1), the below of head (1) is provided with pole portion (7), its characterized in that: the gasket (3) is sleeved on the rod part (7), the lower end of the rod part (7) is provided with a thread (6), and a sealing element is arranged on the rod part (7) and below the gasket (3).

2. An FDS sealing free-flow drill screw as recited in claim 1, wherein: the lower wall surface of the head part (1) is provided with a recess (2), and the rod part (7) is fixedly connected with the inner wall of the top of the recess (2).

3. An FDS sealing free-flow drill screw as recited in claim 1, wherein: one side that gasket (3) are close to the central point integrated into one piece has six sets of upwards crooked arch (4), and the shape and sunken (2) looks adaptation of arch (4).

4. An FDS sealing free-flow drill screw as recited in claim 1, wherein: the sealing element is a gluing area which is positioned at the part of the upper end of the rod part (7) which is not provided with the thread (6).

5. An FDS sealing free-flow drill screw according to claim 4, wherein: the lower end of the rod part (7) is fixedly provided with a cone part (8), and the lower end of the cone part (8) is oval.

6. An FDS sealing free-flow drill screw as recited in claim 1, wherein: the sealing element comprises an elastic part (5), the elastic part (5) is sleeved on the rod part (7), and the elastic part (5) is located below the gasket (3).