CN219164192U - Drag chain - Google Patents
Drag chain Download PDFInfo
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- CN219164192U CN219164192U CN202223172241.3U CN202223172241U CN219164192U CN 219164192 U CN219164192 U CN 219164192U CN 202223172241 U CN202223172241 U CN 202223172241U CN 219164192 U CN219164192 U CN 219164192U
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- end plate
- drag chain
- cross rod
- auxiliary plate
- adjacent
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- 125000006850 spacer group Chemical group 0.000 claims description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000005192 partition Methods 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a drag chain, which comprises a plurality of drag chain links, wherein the drag chain links comprise a first end plate, a second end plate, an upper cross rod and a lower cross rod, wherein the drag chain links comprise a first end plate, a second end plate, a first cross rod and a second cross rod, wherein the first end plate is a chain link body, the second end plate is a chain link body, and the upper cross rod is a chain: the first end plate and the second end plate are arranged in parallel and opposite directions; the first ends of the first end plate and the second end plate are respectively provided with a positioning bulge; the second ends of the first end plate and the second end plate are respectively provided with a rotating hole; the positioning protrusions of two adjacent drag chain links are buckled and connected with the rotating holes; the two ends of the upper cross rod are respectively connected to the top ends of the first end plate and the second end plate, and the two ends of the lower cross rod are respectively connected to the bottom ends of the first end plate and the second end plate; both sides of the lower surface of the upper cross rod and both sides of the upper surface of the lower cross rod are respectively provided with an arc surface protruding towards the holding space of the dragging chain link. When the cambered surface structure is arranged to enable the drag chain to rotate, the upper cross rod and the lower cross rod cannot abrade the wire harness, and the service life of the wire harness is prolonged.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment accessories, and particularly relates to a drag chain.
Background
Conventionally, a cable is guided by a cable drag chain to protect the cable from being excessively bent. The drag chain is shaped like a tank chain and consists of a plurality of chain links, the chain links rotate freely, each unit chain link consists of a left side plate, a right side plate, an upper cover plate and a lower cover plate, each section of the drag chain can be opened, the assembly and the disassembly are convenient, threading is not needed, cables, oil pipes, air pipes, water pipes and the like can be put into the drag chain after the cover plates are opened, the drag chain is suitable for being used in reciprocating occasions, and the drag chain can play a role in traction and protection on built-in cables, oil pipes, air pipes, water pipes and the like.
As shown in fig. 1, a drag chain commonly used in the prior art comprises two parallel end plates, two ends of the end plates in the length direction are respectively provided with a rotating hole and a positioning protrusion, and the positioning protrusions are clamped into the rotating holes of adjacent drag chains to realize the assembly of a plurality of drag chains. An upper cross bar and a lower cross bar are arranged between the two end plates of each drag chain, and the upper cross bar and the lower cross bar limit the pipeline in the drag chain. The pipeline can be taken on the bottom rail owing to the dead weight, and when the drag chain rotated along with the pipeline, because drag chain inner space is limited, bottom rail length direction both sides edge can the butt pipeline, obstructs the pipeline and breaks away from the drag chain, and bottom rail length direction both sides edge just can wearing and tearing pipeline, leads to the pipeline crust damaged easily, consequently needs the frequent pipeline of changing.
Disclosure of Invention
In order to solve the problems in the related art, the application provides a drag chain which can effectively avoid the abrasion of a pipeline in rotation and prolong the service life of the pipeline.
The technical proposal is as follows:
a tow chain comprising a plurality of tow links, the tow chain links comprising a first end plate, a second end plate, an upper cross bar and a lower cross bar, wherein: the first end plate and the second end plate are arranged in parallel and opposite directions; the first ends of the first end plate and the second end plate are respectively provided with a positioning bulge; the second ends of the first end plate and the second end plate are respectively provided with a rotating hole; the positioning protrusions of two adjacent drag chain links are buckled and connected with the rotating holes; the two ends of the upper cross rod are respectively connected to the top ends of the first end plate and the second end plate, and the two ends of the lower cross rod are respectively connected to the bottom ends of the first end plate and the second end plate; both sides of the lower surface of the upper cross rod and both sides of the upper surface of the lower cross rod are respectively provided with an arc surface protruding towards the holding space of the dragging chain link.
When the cambered surface structure is arranged to enable the drag chain to rotate, the upper cross rod and the lower cross rod cannot abrade the wire harness, and the service life of the wire harness is prolonged.
Further, the drag chain further comprises a vertical partition plate arranged in the drag chain link, grooves are formed in two sides of the upper cross rod along the upper surface, the grooves are configured to be assembled with first ends of the vertical partition plate, and second ends of the vertical partition plate are abutted to the upper surface of the lower cross rod.
The grooving is arranged, so that the vertical partition plate can be conveniently installed, and abrasion between the wire harnesses is avoided.
Further, a first auxiliary plate extends from one side of the upper cross rod, the first auxiliary plate is used for closing a gap between two adjacent upper cross rods, a second auxiliary plate extends from the same side of the lower cross rod, and the second auxiliary plate is used for closing a gap between two adjacent lower cross rods.
By forming the first auxiliary plate and the second auxiliary plate to form a closed structure in the drag chain, external foreign matters can be prevented from entering between the wire harnesses to cause abrasion.
Further, a first inclined plane is formed on one side of the first auxiliary plate, which is away from the upper cross rod, and the first inclined plane abuts against the upper cross rod of the adjacent drag chain link; a second inclined plane is formed on one side of the second auxiliary plate, which is away from the lower cross rod, and the second inclined plane abuts against the lower cross rod of the adjacent drag chain link.
The inclined planes are arranged on the inner sides of the first auxiliary plate and the second auxiliary plate, so that the wire harness can be abducted, the sharp protruding structure is eliminated, and the wire harness is prevented from being worn.
Further, the lower cross bar is positioned at the inner side of the rotation of the drag chain, and the upper cross bar is positioned at the outer side of the rotation of the drag chain; the length dimension of the first auxiliary plate is larger than the length dimension of the second auxiliary plate.
The length dimension of the second auxiliary plate positioned at the inner edge is smaller than that of the first auxiliary plate positioned at the outer edge, so that when the drag chain rotates, more space is reserved between adjacent drag chain links, and the adjacent second auxiliary plates are prevented from mutually extruding, tilting and wearing the wire harness.
Further, an upper abdication groove is formed in the upper surface of the upper cross rod; the lower surface of the lower cross rod is provided with a lower abdication groove; the upper yielding groove is configured to yield the first auxiliary plate of the adjacent trailing link; the lower relief slot is configured to relief the second relief plate of an adjacent trailing link.
The upper yielding groove and the lower yielding groove are arranged to yield the auxiliary plates of the adjacent towing links, so that the rotation angle of the towing chain is larger.
Further, the lower surface middle portion of the upper cross bar is also formed with an arc surface protruding toward the trailing link accommodating space, and the upper surface middle portion of the lower cross bar is also formed with an arc surface protruding toward the trailing link accommodating space.
Further, weight reducing holes are formed in the upper cross rod and the lower cross rod, and the weight reducing holes are formed in the length direction of the upper cross rod and the length direction of the lower cross rod.
Providing weight reducing holes can reduce the structural weight of the drag chain.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
FIG. 1 is a schematic view of a prior art trailing link;
FIG. 2 is a schematic view of the structure of a trailing link of the present utility model;
FIG. 3 is a schematic view of the structure of the first and second end plates of the present utility model;
fig. 1-3 include:
1. a first end plate; 2. a second end plate; 11. an upper cross bar; 111. a first auxiliary plate; 112. a first inclined surface; 113. an upper abdication groove; 114. slotting; 12. a lower cross bar; 121. a second auxiliary plate; 122. a second inclined surface; 123. a lower abdication groove; 31. positioning the bulge; 32. a rotation hole; 33. and a lightening hole.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.
As shown in fig. 1-3:
in one embodiment, a drag chain includes a plurality of drag links including a first end plate 1, a second end plate 2, an upper cross bar 11, and a lower cross bar 12, wherein: the first end plate 1 and the second end plate 2 are arranged in parallel and opposite to each other; the first ends of the first end plate 1 and the second end plate 2 are respectively provided with a positioning protrusion 31; the second ends of the first end plate 1 and the second end plate 2 are respectively provided with a rotating hole 32; the positioning protrusions 31 of two adjacent drag chain links are buckled and connected with the rotating holes 32; the two ends of the upper cross rod 11 are respectively connected to the top ends of the first end plate 1 and the second end plate 2, and the two ends of the lower cross rod 12 are respectively connected to the bottom ends of the first end plate 1 and the second end plate 2; both sides of the lower surface of the upper cross bar 11 and both sides of the upper surface of the lower cross bar 12 are formed with arc surfaces protruding toward the drag link accommodating space.
The pencil passes between last horizontal pole 11 and bottom rail 12, and upward set up cambered surface structure on last horizontal pole 11 and the bottom rail 12, and when the tow chain rotated, last horizontal pole 11 and bottom rail 12 can not wearing and tearing pencil, have prolonged the life-span of pencil.
In one embodiment, the drag chain further includes a vertical spacer disposed within the drag chain link, the upper rail 11 being provided with slots 114 along both sides of the upper surface, the slots 114 being configured to receive a first end of the vertical spacer, a second end of the vertical spacer abutting the upper surface of the lower rail 12.
The grooving 114 is convenient for installing the vertical partition board, and the wiring harnesses with different thickness can be separated by using the vertical partition board, so that abrasion between the wiring harnesses is avoided. The vertical partition is a common part in the art, and is used for separating multiple groups of wire harnesses in the drag chain, so that the drag chain of the scheme can also use the vertical partition only under the description, and the specific structure of the vertical partition is not repeated here.
In one embodiment, a first auxiliary plate 111 extends from one side of the upper rail 11, the first auxiliary plate 111 is used for closing a gap between two adjacent upper rails 11, a second auxiliary plate 121 extends from the same side of the lower rail 12, and the second auxiliary plate 121 is used for closing a gap between two adjacent lower rails 12.
By closing the accommodation space inside the drag chain by the first auxiliary plate 111 and the second auxiliary plate 121, it is possible to prevent external foreign matters from entering between the wire harnesses to cause abrasion.
In one embodiment, the side of the first auxiliary plate 111 facing away from the associated upper rail 11 is formed with a first inclined surface 112, the first inclined surface 112 abutting against the upper rail 11 of an adjacent trailing link; the side of the second auxiliary plate 121 facing away from the associated bottom rail 12 is formed with a second inclined surface 122, which second inclined surface 122 abuts against the bottom rail 12 of an adjacent trailing link.
When the drag chain rotates, the auxiliary plates of two adjacent drag chain links are contacted and tilted, so that the wire harness is worn, and the inner sides of the first auxiliary plate 111 and the second auxiliary plate 121 are provided with inclined planes, so that the wire harness can be abducted, the sharp protrusion structure is eliminated, and the wire harness is prevented from being worn.
In one embodiment, the lower cross bar 12 is located inside the rotation of the drag chain and the upper cross bar 11 is located outside the rotation of the drag chain; the length dimension of the first auxiliary plate 111 is greater than the length dimension of the second auxiliary plate 121.
The length of the inner edge of the rotation of the drag chain is smaller than that of the outer edge, so that the length of the second auxiliary plate 121 positioned at the inner edge is smaller than that of the first auxiliary plate 111 positioned at the outer edge, and when the drag chain rotates, more space is reserved between adjacent drag chain links, so that the adjacent second auxiliary plates 121 are prevented from mutually extruding and tilting the abrasion wire harness, the first auxiliary plate 111 positioned at the outer edge sufficiently covers the gap between the adjacent drag chain links, and the sealing performance of the drag chain is further enhanced.
In one embodiment, the upper surface of the upper cross bar 11 is provided with an upper relief groove 113; the lower surface of the lower cross bar 12 is provided with a lower abdication groove 123; the upper relief slots 113 are configured to relief the first auxiliary plates 111 of adjacent trailing links; the lower relief groove 123 is configured to relief the second relief plate 121 of an adjacent trailing link.
The upper yielding groove 113 and the lower yielding groove 123 are arranged to yield the auxiliary plates of adjacent towing links, so that the rotation angle of the towing chain is larger.
In one embodiment, the lower surface intermediate portion of the upper cross bar 11 is also formed with an arc surface protruding toward the trailing link accommodating space, and the upper surface intermediate portion of the lower cross bar 12 is also formed with an arc surface protruding toward the trailing link accommodating space.
In one embodiment, the interiors of the upper rail 11 and the lower rail 12 are provided with weight-reducing holes 33, and the weight-reducing holes 33 are provided along the length direction of the upper rail 11 and the lower rail 12.
Providing the lightening holes 33 can reduce the structural weight of the drag chain.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
It is to be understood that the utility model is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (8)
1. A drag chain comprising a plurality of drag links, wherein the drag chain comprises a first end plate, a second end plate, an upper cross bar, and a lower cross bar, wherein:
the first end plate and the second end plate are arranged in parallel and opposite directions;
the first ends of the first end plate and the second end plate are respectively provided with a positioning bulge;
the second ends of the first end plate and the second end plate are respectively provided with a rotating hole;
the positioning protrusions of two adjacent drag chain links are buckled and connected with the rotating holes;
two ends of the upper cross rod are respectively connected with the top ends of the first end plate and the second end plate,
two ends of the lower cross rod are respectively connected to the bottom ends of the first end plate and the second end plate;
and cambered surfaces protruding towards the tow chain link accommodating space are formed on two sides of the lower surface of the upper cross rod and two sides of the upper surface of the lower cross rod.
2. The drag chain of claim 1, further comprising a vertical spacer disposed within the drag chain link, the upper rail being provided with slots along both sides of the upper surface, the slots configured to receive a first end of the vertical spacer, a second end of the vertical spacer abutting the upper surface of the lower rail.
3. The drag chain of claim 1, wherein a first auxiliary plate extends from one side of the upper rail, the first auxiliary plate being adapted to close a gap between two adjacent upper rails, and a second auxiliary plate extends from the same side of the lower rail, the second auxiliary plate being adapted to close a gap between two adjacent lower rails.
4. A drag chain according to claim 3, wherein a side of the first auxiliary plate facing away from the upper rail to which it belongs is formed with a first inclined surface which abuts against an upper rail of an adjacent drag chain link; and a second inclined plane is formed on one side of the second auxiliary plate, which is away from the lower cross rod, and the second inclined plane abuts against the lower cross rod of the adjacent drag chain joint.
5. A drag chain according to claim 3, wherein the bottom rail is located inboard of the rotation of the drag chain and the top rail is located outboard of the rotation of the drag chain; the length dimension of the first auxiliary plate is greater than the length dimension of the second auxiliary plate.
6. A drag chain according to claim 3, wherein the upper surface of the upper cross bar is provided with an upper relief groove; a lower abdicating groove is formed in the lower surface of the lower cross rod;
the upper yielding groove is configured to yield the first auxiliary plate adjacent to the tow chain link;
the lower relief groove is configured to relief the second auxiliary plate adjacent the tow chain link.
7. The drag chain of claim 1, wherein the lower surface intermediate portion of the upper cross bar is also formed with an arc surface protruding toward the drag chain link receiving space, and the upper surface intermediate portion of the lower cross bar is also formed with an arc surface protruding toward the drag chain link receiving space.
8. The drag chain of claim 1, wherein the interiors of the upper and lower rails are provided with weight-reducing holes disposed along the length of the upper and lower rails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223172241.3U CN219164192U (en) | 2022-11-28 | 2022-11-28 | Drag chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223172241.3U CN219164192U (en) | 2022-11-28 | 2022-11-28 | Drag chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219164192U true CN219164192U (en) | 2023-06-09 |
Family
ID=86642010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223172241.3U Active CN219164192U (en) | 2022-11-28 | 2022-11-28 | Drag chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219164192U (en) |
-
2022
- 2022-11-28 CN CN202223172241.3U patent/CN219164192U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |