CN212972369U

CN212972369U - Seat back frame provided with metal framework and plastic back shell

Info

Publication number: CN212972369U
Application number: CN202021147586.1U
Authority: CN
Inventors: 吴庆
Original assignee: Dxracer Technology Wuxi Co ltd
Current assignee: Dxracer Technology Wuxi Co ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-04-16
Anticipated expiration: 2030-06-19
Also published as: WO2021254517A1

Abstract

The utility model discloses a seat back frame provided with a metal framework and a plastic back shell, which comprises a plastic front frame, a metal framework and a plastic rear frame, wherein the edge of the inner surface of the plastic front frame is provided with a plurality of guide pillar male heads, and the edge of the inner surface of the plastic rear frame is provided with a plurality of guide pillar female heads matched with the guide pillar male heads; the male guide post head is locked with a claw nail through a screw, and the claw nail is pressed into the female guide post head of the plastic rear frame so as to lock the plastic front frame, the metal framework and the plastic rear frame. The utility model discloses an installation claw nail on the public head of guide pillar of frame before plastics, press from both sides metal framework before plastics between frame and the plastics back of the body frame, through claw nail and spacing rib cooperation chucking reach frame and plastics back of the body frame and metal framework combination purpose as an organic whole before plastics. The utility model discloses a structure innovation tubular metal resonator and moulded the compound mode between the shell, technology is succinct, and firm not pine takes off.

Description

Seat back frame provided with metal framework and plastic back shell

Technical Field

The utility model relates to a seat back frame provided with a metal framework and a plastic back shell.

Background

The chair is the indispensable furniture in people's life, and the skeleton of current net chair adopts the tubular metal resonator to make mostly, for pleasing to the eye and comfortable consideration, needs to wrap hard main part such as plastics outside the skeleton, need adopt the mode of blow molding or injection moulding to wrap up including the metal when adopting plastics as hard main part, and production technology is complicated and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome among the prior art when seat adopts metal framework and plastics dorsal scale, the complicated and higher defect of cost of production technology provides one kind and will mould the detached fixed knot of shell and metal framework and construct, specifically is a seat back of the body frame that is provided with metal framework and plastics dorsal scale.

In order to solve the technical problem, the utility model provides a following technical scheme:

a seat back frame provided with a metal framework and a plastic back shell comprises a plastic front frame, the metal framework and a plastic rear frame, wherein a plurality of guide pillar male heads are arranged on the edge of the inner surface of the plastic front frame, and a plurality of guide pillar female heads matched with the guide pillar male heads are arranged on the edge of the inner surface of the plastic rear frame; the male guide post head is locked with a claw nail through a screw, and the claw nail is pressed into the female guide post head of the plastic rear frame so as to lock the plastic front frame, the metal framework and the plastic rear frame.

Furthermore, the inner surfaces of the plastic front frame and the plastic rear frame are provided with limiting ribs for preventing the metal framework from shaking when the plastic front frame and the plastic back frame are combined.

Furthermore, the plastic front frame and the plastic back frame are symmetrically provided with limiting ribs.

Furthermore, the number of the limiting ribs on the plastic front frame and the plastic back frame is 10-30.

Furthermore, a plurality of guide post male heads are arranged at the corner of the radian of the frame of the plastic front frame, and a guide post female head matched with the plastic rear frame is arranged on the plastic rear frame.

Furthermore, the number of the guide post male heads and the guide post female heads is 10-30.

Furthermore, the metal framework is an iron pipe framework, and the plastic front frame and the plastic rear frame are made of PP materials.

The utility model discloses the beneficial effect who reaches is: the utility model discloses an installation claw nail on the public head of guide pillar of frame before plastics, press from both sides metal framework before plastics between frame and the plastics back of the body frame, through claw nail and spacing rib cooperation chucking reach frame and plastics back of the body frame and metal framework combination purpose as an organic whole before plastics. The utility model discloses a structure innovation tubular metal resonator and moulded the compound mode between the shell, technology is succinct, and firm not pine takes off.

Drawings

The accompanying drawings 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 structural diagram of the present invention;

FIG. 2 is a schematic structural view of the plastic front frame of the present invention;

fig. 3 is a schematic structural view of the plastic rear frame of the present invention.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1

As shown in fig. 1-3, a seat back frame with an iron pipe framework and a plastic back shell comprises a plastic front frame 1, an iron pipe framework 3 and a plastic rear frame 2, wherein the edge of the inner surface of the plastic front frame 1 is provided with a plurality of guide post male heads 6, and the edge of the inner surface of the plastic rear frame 2 is provided with a plurality of guide post female heads 8 matched with the guide post male heads 6; the male guide post head 6 is locked with a claw nail 4 through a screw 5, and the claw nail 4 is pressed into the female guide post head 8 of the plastic rear frame 2 so as to lock the plastic front frame 1, the iron pipe framework 3 and the plastic rear frame 2. And limiting ribs 7 for preventing the iron pipe framework 3 from shaking forwards and backwards when the plastic front frame 1 and the plastic back frame 2 are combined are arranged on the inner surfaces of the plastic front frame 1 and the plastic back frame 2. 16 pairs of limiting ribs 7 are arranged on the plastic front frame 1 and the plastic back frame 2 in a scattered way.

The turning part of the radian of the frame of the plastic front frame 1 is provided with a plurality of guide post male heads 6, and the plastic rear frame 2 is provided with a guide post female head 8 matched with the guide post male heads. The number of the guide post male heads and the guide post female heads is 23 pairs, and the guide post male heads and the guide post female heads are uniformly distributed on the inner surface of the plastic front frame 1 and the inner surface of the plastic rear frame 2. Because the radian of the whole chair back frame fluctuates greatly, the guide posts are arranged at the turning positions of the radian, so that gaps generated after the front frame and the back frame are combined are reduced, and the combination is firmer.

The plastic front frame and the plastic rear frame are made of PP materials.

During installation, the plastic front frame, the iron pipe framework and the plastic rear frame can be produced in batches respectively, then the claw nails are installed on the guide posts of the plastic front frame, the iron pipe framework is clamped between the plastic front frame and the plastic back frame, and the purpose that the plastic front frame, the plastic back frame and the iron pipe framework are combined into a whole is achieved through the cooperation and clamping of the claw nails and the limiting ribs. Not only simplifies the process and is simple, but also the seat back frame is stable and is not easy to loosen.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A seat back frame provided with a metal framework and a plastic back shell is characterized by comprising a plastic front frame, the metal framework and a plastic rear frame, wherein the edge of the inner surface of the plastic front frame is provided with a plurality of guide pillar male heads; the male guide post head is locked with a claw nail through a screw, and the claw nail is pressed into the female guide post head of the plastic rear frame so as to lock the plastic front frame, the metal framework and the plastic rear frame.

2. The seat back frame provided with the metal frame and the plastic back shell according to claim 1, wherein limiting ribs for preventing the metal frame from shaking when the plastic front frame and the plastic back frame are combined are provided on inner surfaces of the plastic front frame and the plastic back frame.

3. The seat back frame with metal skeleton and plastic back shell as recited in claim 2, wherein the plastic front frame and the plastic back frame have symmetrically arranged limiting ribs.

4. The seat back frame provided with the metal framework and the plastic back shell as claimed in claim 2, wherein the number of the limiting ribs on the plastic front frame and the plastic back frame is 10-30.

5. The seat back frame with metal frame and plastic back shell as claimed in claim 1, wherein the plastic front frame has several male guide posts at the corners of the frame arc, and the plastic back frame has female guide posts.

6. The seat back frame with the metal framework and the plastic back shell as claimed in claim 1, wherein the number of the male heads and the female heads of the guide posts is 10-30.

7. The seat back frame provided with the metal framework and the plastic back shell according to claim 1, wherein the metal framework is an iron pipe framework, and the plastic front frame and the plastic rear frame are made of PP materials.