CN219345388U

CN219345388U - Drag chain

Info

Publication number: CN219345388U
Application number: CN202320126540.9U
Authority: CN
Inventors: 车伟; 许金强
Original assignee: Bohao Auto Parts Kunshan Co ltd
Current assignee: Bohao Auto Parts Kunshan Co ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-07-14
Anticipated expiration: 2033-01-13

Abstract

The utility model discloses a drag chain, comprising: a plurality of chain links, and a first connecting piece and a second connecting piece which are positioned at two ends; the chain link comprises two chain plates and at least one connecting plate for connecting the chain plates; two hinge areas are arranged on the chain plate, so that a limit opening is arranged at any hinge area, and a limit block is arranged at the other hinge area; when the chain links are connected with adjacent chain links, the limiting block is positioned in the limiting opening. And brand new connecting pieces are designed at the two ends of the drag chain, so that the integral torsion resistance of the drag chain is enhanced, and the drag chain is suitable for a severe use environment. The drag chain link of the drag chain has two bar-shaped clamping blocks, and the limiting opening of the adjacent chain link is matched with the two bar-shaped clamping blocks, so that the bending angle between the chain links can be limited effectively.

Description

Drag chain

Technical Field

The utility model relates to the technical field of drag chains, in particular to a drag chain.

Background

The drag chain is suitable for being used in the occasion of reciprocating motion, and can play a role in traction and protection on built-in cables, oil pipes, air pipes, water pipes and the like. The chain is generally flat and consists of a plurality of unit chain links, the unit chain links rotate freely, and each unit chain link consists of two chain plates and an upper cover plate and a lower cover plate.

At present, the drag chain is widely applied to the fields of numerical control machine tools, electronic equipment, stone machinery, glass machinery, door and window machinery, injection molding machines, manipulators, lifting and transporting equipment, automatic warehouses and the like. The drag chain can be divided into steel drag chain, steel aluminum drag chain, plastic drag chain, stainless steel drag chain, nylon drag chain and the like according to materials, no transition piece is usually arranged when the drag chain is used, the drag chain is directly applied, but in the specific application process, the chain link interaction structure design of the drag chain inevitably leads to the integral torsion resistance of the drag chain to be poor, deformation is easy to cause, and the quality problem of link fracture is caused, so that the drag chain with the transition piece is very necessary to be designed to solve the problem.

Disclosure of Invention

The utility model aims to provide a drag chain.

To achieve the above object, the present utility model adopts the following:

a drag chain comprising: a plurality of chain links, and a first connecting piece and a second connecting piece which are positioned at two ends; the chain link comprises two chain plates and at least one connecting plate for connecting the chain plates; two hinge areas are arranged on the chain plate, so that a limit opening is arranged at any hinge area, and a limit block is arranged at the other hinge area; when the chain links are connected with adjacent chain links, the limiting block is positioned in the limiting opening.

Preferably, the number of the connecting plates is two, the connecting plates are arranged between two chain plates of the chain link in parallel, and grooves are formed in two side walls of any one connecting plate.

Preferably, the two hinge areas of the chain plate are positioned on different surfaces of the chain plate, a limiting opening is arranged at the hinge area facing the outer side, and a limiting block is arranged at the hinge area facing the inner side.

Preferably, two link plates located in one of the links are symmetrically disposed.

Preferably, the limiting blocks are two strip-shaped clamping blocks which are arranged in parallel.

Preferably, the first connector includes: a mounting portion and a cover; the mounting part is connected to the chain links, and a cover body is arranged on the mounting part.

Preferably, a channel is provided in the mounting portion, the channel being bent by 90 ° and having a port of the channel corresponding between two connection plates of the link; a positioning part is arranged at the bending part of the channel; positioning ear blocks are arranged on two sides of the channel.

Preferably, the cover includes: the cover body covers the channel and the guide nozzle is used for connection; the guide nozzle and the cover body are integrally formed and positioned at one end of the channel, which is not connected with the chain link.

Preferably, the second connector includes: a second connection housing and a second hinge; one end of the second hinge joint is connected with the chain link, the other end of the second hinge joint is hinged in the second connecting shell, the second hinge joint is hollow, a continuous space is formed between the second hinge joint and the chain link as well as the first connecting piece, and the second connecting shell comprises: a chassis and an upper cover; the chassis is provided with a connecting hole for connecting the second hinge joint; the upper cover is provided with an upper connecting hole corresponding to the connecting hole on the chassis.

1. And brand new connecting pieces are designed at the two ends of the drag chain, so that the integral torsion resistance of the drag chain is enhanced, and the drag chain is suitable for a severe use environment.

2. The drag chain link of the drag chain has two bar-shaped clamping blocks, and the limiting opening of the adjacent chain link is matched with the two bar-shaped clamping blocks, so that the bending angle between the chain links can be limited effectively.

Drawings

The following describes the embodiments of the present utility model in further detail with reference to the drawings.

Fig. 1 is a schematic diagram of a drag chain construction of the present utility model.

Fig. 2 is a partially enlarged schematic illustration of a drag chain of the present utility model.

Fig. 3 is a schematic view showing a structure of the drag chain first link of the present utility model with the cover removed.

Fig. 4 is a schematic structural view of a drag chain link of the present utility model.

Fig. 5 is a schematic structural view of a second link of a drag chain link of the present utility model.

In the drawings, each reference numeral is:

1-first connecting piece, 101-mounting part, 1011-channel, 1012-positioning part, 1013-positioning ear piece, 102-cover body, 1021-cover body, 1022-guide mouth, 2-second connecting piece, 201-second connecting shell, 2021-chassis, 2022-upper cover, 202-second articulated joint, 3-chain link, 301-chain link, 302-connecting plate, 3021-groove, 303-articulated region, 304-limit mouth, 305-limit block, 3051-bar fixture block.

Detailed Description

In order to more clearly illustrate the present utility model, the present utility model will be further described with reference to preferred embodiments. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this utility model is not limited to the details given herein.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be fixedly connected, disposed, or detachably connected, disposed, or integrally connected, disposed, for example. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, a drag chain includes: the chain link 3 comprises a strip-shaped drag chain body, a first connecting piece 1 and a second connecting piece 2 which are positioned at two ends;

the chain link 3 comprises two link plates 301 and two connecting plates 302 for connecting the link plates; two hinge areas are arranged on the chain plate 301, two hinge areas 303 of the chain plate 301 are positioned on different surfaces of the chain plate 301, a limiting opening 304 is arranged at the hinge area 303 facing the outer side, and a limiting block 305 is arranged at the hinge area 303 facing the inner side. Two chain plates positioned in one chain link are symmetrically arranged.

According to the attached drawings, the chain plate is designed in an axisymmetric mode, and the design can obtain higher stability. If two link plates are designed in parallel, the same can be used, but the torsion resistance is reduced.

When the chain links 3 are connected with the adjacent chain links 3, the limiting block 305 is located in the limiting opening 304. Obviously, the width of spacing mouth has decided the swing angle between two liang of chain links, and this application is through directly seting up the design of spacing mouth on the link joint, and the link joint is as the biggest part of hardness in the chain link, guarantees that the size of spacing mouth can not change along with the time, has further promoted holistic stability.

Further, the number of the connecting plates 302 is two, and the connecting plates are arranged between the two link plates 301 of the chain link 3 in parallel, and grooves 3021 are arranged on two side walls of any one of the connecting plates 302.

It can be understood that the cross section is the rectangle that two connecting plates and two link joint are constituteed, and the rectangle has relatively poor torsion resistance, needs to hold the pencil in the rectangle inside, can't increase under the condition of unnecessary support piece, and the recess is seted up to the side on the connecting plate, can effectually increase connecting plate torsional strength.

Further, the limiting block 305 is two bar-shaped clamping blocks 3051 arranged in parallel. Compare in traditional integral type fixture block, two bar fixture blocks can avoid the complete damage when single fixture block fatigue failure fracture, improve holistic security.

Further, the first connector 1 includes: a mounting portion 101 and a cover 102; the mounting portion 101 is connected to the link 3, and a cover 102 is provided on the mounting portion 101.

A channel 1011 is arranged in the mounting part 101, the channel 1011 is bent by 90 degrees, and the port of the channel 1011 corresponds to the space between the two connecting plates 302 of the chain link 3; a positioning part 1012 is arranged at the bending part of the channel 1011; positioning lugs 1013 are arranged on two sides of the channel 1011.

The locating part is used for fixing the whole installation part outside, and the locating ear piece is used for cooperating the lid, and both functions are different.

The cover 102 includes: a cover body 1021 covering the channel 1011 and a flow guiding nozzle 1022 for connection; the guide nozzle 1022 is integrally formed with the cover body 1021, and is located at one end of the channel 1011, to which the link is not connected.

One end of the second connecting piece 2 is hinged to the chain link 3, the second connecting piece 2 is hollow, and a continuous space is formed between the second connecting piece 2 and the chain link 3 and the first connecting piece 1; the side wall of the second connecting piece 2 is provided with a connecting piece for connecting the outside. The second connecting piece is cuboid, and the end face of head and tail is the arc.

The second connector 2 includes: a second connection housing 201 and a second hinge 202; one end of the second hinge 202 is connected to the chain link 3, the other end is hinged in the second connection housing 201, and the second hinge 202 is hollow, so as to form a continuous space with the chain link 3 and the first connection member 1, and the second connection housing 201 includes: a bottom plate 2021 and an upper cover 2022; the chassis 2021 is provided with a connecting hole for connecting the second hinge joint 202; the upper cover 2022 is provided with an upper connection hole corresponding to the connection hole on the base 2021.

It should be understood that the foregoing examples of the present utility model are provided merely for clearly illustrating the present utility model and are not intended to limit the embodiments of the present utility model, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present utility model as defined by the appended claims.

Claims

1. A drag chain comprising: a plurality of chain links, and a first connecting piece and a second connecting piece which are positioned at two ends; the chain link comprises two chain plates and at least one connecting plate for connecting the chain plates; two hinge areas are arranged on the chain plate, so that a limit opening is arranged at any hinge area, and a limit block is arranged at the other hinge area; when the chain links are connected with adjacent chain links, the limiting block is positioned in the limiting opening.

2. The drag chain of claim 1, wherein the number of the connecting plates is two, the connecting plates are arranged between two link plates of the chain link in parallel, and grooves are arranged on two side walls of any one connecting plate.

3. A drag chain according to claim 1, wherein the two hinge areas of the link plate are located on different surfaces of the link plate, and wherein a limiting opening is provided at the hinge area facing the outer side and a limiting block is provided at the hinge area facing the inner side.

4. A drag chain according to any one of claims 1-3, wherein two link plates within one of said links are symmetrically disposed.

5. A drag chain according to claim 3, wherein the limiting block is two bar-shaped clamping blocks arranged in parallel.

6. The drag chain of claim 1, wherein the first link comprises: a mounting portion and a cover; the mounting part is connected to the chain links, and a cover body is arranged on the mounting part.

7. A drag chain according to claim 6, wherein a channel is provided in the mounting portion, the channel being bent 90 ° such that the port of the channel corresponds between two webs of the link; a positioning part is arranged at the bending part of the channel; positioning ear blocks are arranged on two sides of the channel.

8. The drag chain of claim 7, wherein the cover comprises: the cover body covers the channel and the guide nozzle is used for connection; the guide nozzle and the cover body are integrally formed and positioned at one end of the channel, which is not connected with the chain link.

9. The drag chain of claim 1, wherein the second link comprises: a second connection housing and a second hinge; one end of the second hinge joint is connected with the chain link, the other end of the second hinge joint is hinged in the second connecting shell, and the second hinge joint is hollow, so that a continuous space is formed between the second hinge joint and the chain link as well as the first connecting piece.

10. The drag chain of claim 9, wherein the second connection housing comprises: a chassis and an upper cover; the chassis is provided with a connecting hole for connecting the second hinge joint; the upper cover is provided with an upper connecting hole corresponding to the connecting hole on the chassis.