CN210195544U - Integrated inner support pipe assembly - Google Patents
Integrated inner support pipe assembly Download PDFInfo
- Publication number
- CN210195544U CN210195544U CN201822146310.0U CN201822146310U CN210195544U CN 210195544 U CN210195544 U CN 210195544U CN 201822146310 U CN201822146310 U CN 201822146310U CN 210195544 U CN210195544 U CN 210195544U
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- nut
- plastic nut
- injection molding
- stay tube
- inner support
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
An integral inner support tube assembly comprising: the plastic nut is positioned at the front end of the inner supporting pipe and formed by injection molding, and a plurality of injection molding holes are uniformly distributed at the front end of the inner supporting pipe along the circumferential direction so as to be connected with the plastic nut into a whole in an injection molding way; the front end face of the plastic nut is uniformly provided with a plurality of triangular slotted holes with cross sections along the circumferential direction. The utility model discloses an integral type design no longer uses the vice connection structure of nut between interior stay tube and the plastic nut in the current interior stay tube structure, and interior stay tube and plastic nut link together through moulding plastics, have avoided the vice connection of nut of current interior stay tube, and interior stay tube end portion still need process the internal thread in the thin wall spare, and wall thickness is thin, yielding, the not enough shortcoming of joint strength reduces manufacturing procedure, assembling process, productivity gain, reduce cost.
Description
Technical Field
The utility model relates to a vehicle part, in particular to support tube assembly in the integral type.
Background
Along with the popularization of the electric tail gate, the SUV vehicle type, the three-compartment vehicle type and the MPV vehicle type of a plurality of host factories are all provided with the electric stay bar at present, the tail gate is opened or closed in an electric or remote control mode or an induction mode, the convenience and the rapidness are very high, and especially the induction type opening and closing tail gate is suitable for the situation that the tail gate is opened by too many objects on hands or by using an electronic vehicle key.
At present, an inner support pipe assembly of an electric stay bar is assembled by an inner support pipe (made of aluminum) and a plastic nut (made of POM), internal threads are processed in the end part of the inner support pipe, an external nut is processed on the plastic nut, and the inner support pipe assembly and the plastic nut are connected together through a nut pair and then fixed by dotting. This structure has the following disadvantages:
(1) the aluminum inner supporting tube is a thin-wall part, the wall thickness is 2mm, an M14 internal thread is processed at the end part of the aluminum inner supporting tube, the wall thickness of the connecting part is changed into 1mm, and then the aluminum inner supporting tube is connected with a plastic nut, so that the aluminum inner supporting tube is too thin and easy to deform, and the connecting strength is insufficient;
(2) the inner supporting tube and the plastic nut are screwed together through the nut pair and then need to be dotted and fixed, the dotting of the cylinder is difficult to control technically, the dotting force value is difficult to control, more products are often scrapped, and the tensile strength of a semi-finished product of dotting assembly is not high, so that the tensile strength of the electric stay bar assembly is influenced;
(3) the plastic nut is made of POM, the inner part of the plastic nut is provided with internal threads which are matched with the screw rod for transmission, the outer part of the plastic nut is provided with an external nut which is connected with the internal support tube, so that the strength of the whole plastic nut is not high, and particularly after dotting, the plastic nut is easily pressed and deformed, the shape of the internal nut is influenced, and the plastic nut is often not smoothly matched with the screw rod;
(4) interior support inside processing of pipe end portion has the internal thread, and processing of plastics nut the inside has the internal thread, and outside processing has outer nut, and the manufacturing procedure of material is too many, assembles complicacy, and the workman's operation of not being convenient for influences production efficiency, and the line beat is produced in the extension, increases manufacturing cost.
Disclosure of Invention
The utility model discloses an interior support tube assembly of design integral type, the integral type design, intensity obtains improving, save material and cost simultaneously.
In order to achieve the above purpose, the technical scheme of the utility model is that:
an integral inner support tube assembly comprising: the plastic nut is positioned at the front end of the inner supporting pipe and formed by injection molding, and a plurality of injection molding holes are uniformly distributed at the front end of the inner supporting pipe along the circumferential direction so as to be connected with the plastic nut into a whole in an injection molding way; the front end face of the plastic nut is uniformly provided with a plurality of triangular slotted holes with cross sections along the circumferential direction.
Preferably, at least two rows of injection molding holes are formed in the front end of the inner supporting tube along the axial direction, and the diameter of each injection molding hole is 2-4 mm.
Preferably, the wall thickness of the inner support tube is 1.5-1.8 mm.
Preferably, the material of the plastic nut is PA 66.
The utility model discloses the structure no longer uses the interior stay tube in the current interior stay tube structure and the vice connection structure of nut between the plastic nut to bring following advantage:
(1) the utility model discloses it has a plurality of injection holes to open on well interior stay tube, melting plastics passes through the aperture and flows in when moulding plastics, firmly with the plastic nut with support the union coupling together in, both are difficult for droing, need not process the internal thread on the stay tube including, thereby the intensity of stay tube is strengthened in the thin wall spare, the nut of having avoided current interior stay tube is vice to be connected, support the pipe end portion in the thin wall spare and still need process the internal thread, the wall thickness is thin, yielding, the not enough shortcoming of joint strength, reduce manufacturing procedure, the assembling process, productivity gain, and cost is reduced.
(2) The utility model discloses interior stay tube and plastics nut link together through moulding plastics, need not beat fixedly, and the internal thread of plastics nut can not receive the influence, guaranteed with the good cooperation transmission of adversary's piece, still need beat fixedly after having avoided current interior stay tube and for the plastics nut to connect vice, the process control difficulty, the article of scrapping is more, it is not high to beat semi-manufactured goods tensile strength, leads to the not enough shortcoming of tensile strength of electronic vaulting pole assembly.
(3) The utility model discloses avoided present interior support pipe need process the internal thread, the screw thread is processed to the inside and outside of plastic nut, too much process, complicated assembly, low productivity ratio, long beat, costly shortcoming.
(4) The utility model discloses the plastic nut material is PA66, and toughness is good, stand wear and tear, high temperature resistant (fire resistance is good promptly), and the degree of polymerization of having avoided the plastic nut of POM material in the current structure is not high, easily receives the thermal depolymerization shortcoming.
(5) The utility model discloses open the plastics nut terminal surface has the triangle slotted hole for the exhaust of moulding plastics, the product indeformable when guaranteeing to mould plastics has avoided the yielding shortcoming of moulding plastics of the plastics nut in the current interior support tube structure.
(6) The utility model discloses moulding plastics the plastic nut and moulding on the interior stay tube, need not process the internal thread on the interior stay tube, intensity has obtained the improvement, falls 1.5-1.8mm with the wall thickness through the analysis, still can satisfy joint strength, has saved the material like this, has saved the cost.
Drawings
Fig. 1 is a perspective view of an embodiment of the present invention.
Detailed Description
Referring to fig. 1, the utility model discloses an interior support tube assembly of integral type, it includes: the plastic nut 2 is positioned at the front end of the inner supporting tube 1 and formed by injection molding, and a plurality of injection molding holes 101 are uniformly distributed at the front end of the inner supporting tube 1 along the circumferential direction so as to be connected with the plastic nut 2 into a whole by injection molding; the front end face of the plastic nut 2 is uniformly provided with a plurality of triangular slotted holes 201 along the circumferential direction.
Preferably, two rows of injection molding holes 101 are arranged at the front end of the inner support tube 1 along the axial direction, and the hole diameter is 2-4 mm.
Preferably, the material of the plastic nut 2 is PA 66.
Preferably, the wall thickness of the inner support tube 1 is 1.5-1.8 mm.
Claims (4)
1. An integral inner support tube assembly, comprising: the plastic nut is positioned at the front end of the inner supporting pipe and formed by injection molding, and a plurality of injection molding holes are uniformly distributed at the front end of the inner supporting pipe along the circumferential direction so as to be connected with the plastic nut into a whole in an injection molding way; the front end face of the plastic nut is uniformly provided with a plurality of triangular slotted holes with cross sections along the circumferential direction.
2. The integral inner support tube assembly of claim 1, wherein the front end of the inner support tube has at least two axially rows of injection holes with 2-4mm diameter.
3. An integral inner support tube assembly according to claim 1 or 2, wherein said inner support tube wall thickness is 1.5-1.8 mm.
4. The integrated inner support tube assembly of claim 1, wherein the plastic nut is PA 66.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822146310.0U CN210195544U (en) | 2018-12-20 | 2018-12-20 | Integrated inner support pipe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822146310.0U CN210195544U (en) | 2018-12-20 | 2018-12-20 | Integrated inner support pipe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210195544U true CN210195544U (en) | 2020-03-27 |
Family
ID=69880229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822146310.0U Active CN210195544U (en) | 2018-12-20 | 2018-12-20 | Integrated inner support pipe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210195544U (en) |
-
2018
- 2018-12-20 CN CN201822146310.0U patent/CN210195544U/en active Active
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