CN220416117U

CN220416117U - Closed drag chain

Info

Publication number: CN220416117U
Application number: CN202322053987.0U
Authority: CN
Inventors: 郯国庆; 陈锡保; 唐铁光; 金立国
Original assignee: Dongguan Yiheda Automation Co Ltd
Current assignee: Dongguan Yiheda Automation Co Ltd
Priority date: 2023-08-02
Filing date: 2023-08-02
Publication date: 2024-01-30
Anticipated expiration: 2033-08-02

Abstract

The utility model relates to the technical field of drag chain structures, in particular to a closed drag chain, which comprises: the drag chain comprises a drag chain body, a chain link assembly, a chain link unit and a sealing piece, wherein the drag chain body is formed by assembling and installing a plurality of groups of chain link assemblies, the chain link assembly comprises a chain link unit and the sealing piece, and the chain link unit comprises a cover plate I, a side plate, an arc-shaped step I, a cylindrical boss, a round hole, a mounting groove, a clamping column, an arc-shaped groove and an arc-shaped protruding block. When the drag chain body is bent, the cover plate I of one group of link units is movably connected with the arc-shaped step I of the other group of link units, the arc-shaped protruding blocks are matched with the arc-shaped grooves of the other group, and the cover plate II of the one group of sealing members is movably connected with the arc-shaped step II of the other group of sealing members.

Description

Closed drag chain

Technical Field

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

Background

The drag chain, which is also called a wire and cable protection drag chain, is a device for restraining a cable or a wire or an air pressure pipe and an oil pressure pipe so as to facilitate the rotation and the movement of the cable or the wire or the air pressure pipe and the oil pressure pipe, is applied to the occasion of reciprocating movement, and can play a role in traction and protection on built-in cables, oil pipes, air pipes, water pipes and the like. Drag chains have been widely used in the industries of numerical control machines, electronic equipment, glass machinery, injection molding machine manipulators, handling machinery, plastic machinery, hoisting equipment, woodworking machinery, the automotive industry, industrial vehicles, metal working machines, machine tools, foundry machinery, harbour equipment, and the like.

At present, a closed drag chain is used for protecting and accommodating cables, oil pipes, air pipes and water pipes, the structure of the closed drag chain is formed by assembling and combining a plurality of chain links, and the lower end of the closed drag chain is fixedly connected by using a cross rod.

However, when the current sealed drag chain is used in protection, the inner side of the drag chain can be exposed at the bending part of the drag chain during bending, meanwhile, the inner side adopts an open cross rod, sundries are easy to fall into, dust is easy to enter, and further, a storage cable, an oil pipe, an air pipe and a water pipe are easy to damage, so that the drag chain cannot be used normally, mechanical equipment cannot be used normally, and loss is caused to production and processing of factories.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a closed type drag chain, so as to solve the technical problems that when the existing closed type drag chain is bent, the bent part of the existing closed type drag chain is exposed to the inner side, meanwhile, the inner side adopts an open cross bar, sundries are easy to fall into the inner side, dust is easy to enter, and further, a storage cable, an oil pipe, an air pipe and a water pipe are easy to damage, so that the existing closed type drag chain cannot be normally used, mechanical equipment cannot be normally used, and loss is caused to production and processing of factories.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a closed drag chain comprising:

a tow chain body; the drag chain body is formed by assembling and installing a plurality of groups of chain link components;

a link assembly; the link assembly includes a link unit and a seal;

a link unit; the chain link unit comprises a cover plate I, a side plate, an arc-shaped step I, a cylindrical boss, a round hole, a mounting groove, a clamping column, an arc-shaped groove and an arc-shaped protruding block, wherein two groups of side plates are fixedly arranged on one side of the cover plate I, the arc-shaped step I is fixedly arranged at one end of the cover plate I, the arc-shaped step I is perpendicular to the side plate I, the arc-shaped groove is formed in one side of the side plate, and the arc-shaped protruding block is fixedly arranged on the other side of the side plate;

a seal; the sealing element comprises a cover plate II, an arc-shaped boss II, a clamping groove I and a clamping groove II, wherein the arc-shaped boss II is fixedly arranged on one side of the cover plate II, one sides of the clamping groove I and one side of the clamping groove II are fixedly arranged on two sides of the cover plate II, when the chain link unit is connected with the sealing element, the clamping groove I and the clamping groove II are clamped on the outer sides of clamping columns, the cover plate II is contacted with one side of the side plate, one group of arc-shaped lugs are matched with the other group of arc-shaped grooves, one group of cover plates of the chain link unit are movably connected with the other group of arc-shaped steps of the chain link unit, and one group of cover plates of the sealing element II are movably connected with the other group of arc-shaped steps of the sealing element.

Further, the round hole is formed in the side plate and located at the inner side of the arc-shaped protruding block, and the cylindrical boss is fixedly mounted on one side of the side plate and located at the inner side of the arc-shaped groove.

Further, when two groups of adjacent chain link units are connected, the cylindrical bosses are inserted and arranged in the round holes.

Further, the chain link unit further comprises a bevel connection I, a clamping block I, a bevel connection II and a clamping block II, wherein the bevel connection I is arranged on the inner side of the arc-shaped protruding block, and the clamping block II is fixedly arranged on the inner side of the arc-shaped protruding block.

Further, the second bevel connection is arranged on one side of the arc-shaped groove, and the first clamping block is fixedly arranged on the inner side wall of the arc-shaped groove.

Further, when two groups of adjacent chain link components are connected, the first clamping block is positioned on the inner side of the second inclined opening, and the second clamping block is positioned on the inner side of the first inclined opening.

Further, the mounting groove is formed in one side, far away from the first cover plate, of the side plate, the clamping column is fixedly mounted on the inner wall of the mounting groove, and the notch directions of the first clamping groove and the notch directions of the second clamping groove are opposite.

The utility model has the beneficial effects that:

through being provided with chain link unit and sealing member cooperation installation, during the use, with draw-in groove one and draw-in groove two joint in the outside of joint post, and then install sealing member and chain link unit together, when bending the tow chain body, the apron one of a set of chain link unit and the arc step one swing joint of another set of chain link unit, a set of arc lug and another set of arc recess cooperation installation, the apron two of a set of sealing member and the arc step two swing joint of another set of sealing member, and then can form a sealed space, arc step one and arc step two seal the joint gap between two sets of adjacent chain link subassemblies, and then improve the sealing performance of two sets of adjacent chain link subassemblies, be difficult for making the inside debris or the entering dust of falling into of chain link subassembly, and then be favorable to protecting the inside part of tow chain body, make its sustainability normal use for a long time, be favorable to guaranteeing mechanical equipment's normal operating.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a drag chain body of an embodiment of the present closed drag chain;

FIG. 2 is a schematic diagram of a front view of an embodiment of the closed tow chain;

FIG. 3 is a schematic bottom perspective view of an embodiment of the closed tow chain;

FIG. 4 is an exploded perspective view of a link assembly of an embodiment of the present closed tow chain;

FIG. 5 is a schematic perspective view of a link unit of an embodiment of the present closed drag chain;

FIG. 6 is a schematic perspective view of a link assembly of an embodiment of the present closed drag chain;

FIG. 7 is a schematic perspective view of a seal member of an embodiment of the present closed tow chain;

FIG. 8 is a schematic bottom view of a link assembly of an embodiment of the present closed drag chain;

FIG. 9 is a schematic cross-sectional view of the section A-A of FIG. 8 of an embodiment of the present closed tow chain;

FIG. 10 is a schematic view of a link assembly mounting perspective of an embodiment of the present closed drag chain.

The figure identifies the description: 1. a tow chain body; 2. a link assembly; 3. a link unit; 31. a cover plate I; 32. a side plate; 33. arc-shaped step I; 34. a cylindrical boss; 35. a round hole; 36. a mounting groove; 37. a clamping column; 38. a bevel I; 39. a clamping block I; 30. arc-shaped protruding blocks; 310. an arc-shaped groove; 311. a second bevel; 312. a clamping block II; 4. a seal; 41. a cover plate II; 42. arc boss II; 43. a clamping groove I; 44. and a clamping groove II.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 10 of the embodiments of the present utility model, and it is obvious that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be understood that the terms "comprises" and "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1-10, a closed drag chain, comprising: the drag chain body 1, the chain link assembly 2, the chain link unit 3 and the sealing element 4, the drag chain body 1 is assembled and installed by a plurality of groups of chain link assemblies 2, the chain link assembly 2 comprises the chain link unit 3 and the sealing element 4, the chain link unit 3 comprises a cover plate I31, a side plate 32, an arc-shaped step I33, a cylindrical boss 34, a round hole 35, a mounting groove 36, a clamping post 37, an arc-shaped groove 310 and an arc-shaped protruding block 30, the two groups of side plates 32 are fixedly installed on one side of the cover plate I31, the arc-shaped step I33 is fixedly installed on one end of the cover plate I31, the arc-shaped step I is mutually perpendicular to the side plate 32, the arc-shaped groove 310 is arranged on one side of the side plate 32, the arc-shaped protruding block 30 is fixedly installed on the other side of the side plate 32, the sealing element 4 comprises a cover plate II 41, an arc-shaped boss II 42, a clamping groove I43 and a clamping groove II 44, wherein the arc-shaped boss II 42 is fixedly arranged on one side of the cover plate II 41, one sides of the clamping groove I43 and the clamping groove II 44 are fixedly arranged on two sides of the cover plate II 41, when the chain link unit 3 is connected with the sealing element 4, the clamping groove I43 and the clamping groove II 44 are clamped and connected with the outer side of the clamping column 37, the cover plate II 41 is contacted with one side of the side plate 32, the arc-shaped protruding blocks 30 are matched with the arc-shaped grooves 310 of the other group, the cover plate I31 of the chain link unit 3 is movably connected with the arc-shaped steps I33 of the other group of chain link units 3, and the cover plate II 41 of the sealing element 4 is movably connected with the arc-shaped steps II of the other group of the sealing element 4.

Specifically, through being provided with link unit 3 and sealing member 4 cooperation installation, during the use, with draw-in groove one 43 and draw-in groove two 44 joint in the outside of joint post 37, and then install sealing member 4 and link unit 3 together, when bending drag chain body 1, the apron one 31 of a set of link unit 3 and the arc step one 33 swing joint of another set of link unit 3, a set of arc lug 30 and another set of arc recess 310 cooperation installation, the apron two 41 of a set of sealing member 4 and the arc step two swing joint of another set of sealing member 4, and then can form a sealed space, arc step one 33 and arc step two seal the joint gap between two sets of adjacent link assemblies 2, and then improve the sealing performance of two sets of adjacent link assemblies 2, be difficult for making link assembly 2 inside fall into debris or get into the dust, and then be favorable to protecting drag chain body 1 inside part, make its sustainability normal use for a long time, be favorable to guaranteeing mechanical equipment's normal operating.

In this embodiment, the round hole 35 is formed in the side plate 32 and located at the inner side of the arc-shaped protruding block 30, the cylindrical boss 34 is fixedly mounted on one side of the side plate 32 and located at the inner side of the arc-shaped groove 310, and when two adjacent sets of link units 3 are connected, the cylindrical boss 34 is inserted and arranged in the round hole 35.

Specifically, when the drag chain body 1 is bent, the cylindrical boss 34 can rotate inside the circular hole 35, which is beneficial to the stability of connection between two adjacent chain link assemblies 2 and enables the rotation to be smoother.

The chain link unit 3 further comprises a first bevel connection 38, a first clamping block 39, a second bevel connection 311 and a second clamping block 312, wherein the first bevel connection 38 is arranged on the inner side of the arc-shaped protruding block 30, the second clamping block 312 is fixedly arranged on the inner side of the arc-shaped protruding block 30, the second bevel connection 311 is arranged on one side of the arc-shaped groove 310, the first clamping block 39 is fixedly arranged on the inner side wall of the arc-shaped groove 310, when two adjacent chain link assemblies 2 are connected, the first clamping block 39 is positioned on the inner side of the second bevel connection 311, and the second clamping block 312 is positioned on the inner side of the first bevel connection 38.

Specifically, when the drag chain body 1 is bent, the first clamping block 39 rotates in the second inclined opening 311, the second inclined opening 311 can limit the rotation of the first clamping block 39, the second clamping block 312 rotates in the first inclined opening 38, the first inclined opening 38 can limit the rotation of the second clamping block 312, the rotation of the other group of chain link components is facilitated, the multiple groups of chain link components 2 of the drag chain body 1 continuously rotate, and the flexibility of bending of the drag chain body 1 is improved.

The mounting groove 36 is formed on one side of the side plate 32 far away from the cover plate I31, the clamping column 37 is fixedly mounted on the inner wall of the mounting groove 36, and the notch directions of the clamping groove I43 and the clamping groove II 44 are opposite.

Specifically, during use, the clamping groove I43 and the clamping groove II 44 are respectively clamped and arranged on the outer side of the clamping post 37, and the directions of the notch of the clamping groove I43 and the notch of the clamping groove II 44 are opposite, so that the sealing element 4 is not easy to separate from the chain link unit 3, the installation of the sealing element 4 is more stable, and the complete performance of the parts of the drag chain body 1 is ensured when the drag chain body is bent.

In summary, compared with the prior art, the drag chain has at least the following beneficial effects: through being provided with link unit 3 and sealing member 4 cooperation installation, during the use, with draw-in groove one 43 and draw-in groove two 44 joint in the outside of joint post 37, and then install sealing member 4 and link unit 3 together, when bending tow chain body 1, the apron one 31 of a set of link unit 3 and the arc step one 33 swing joint of another set of link unit 3, a set of arc lug 30 and another set of arc recess 310 cooperation installation, the apron two 41 of a set of sealing member 4 and the arc step two swing joint of another set of sealing member 4, and then can form a sealed space, arc step one 33 and arc step two seal the joint gap between two sets of adjacent link assemblies 2, and then improve the sealing performance of two sets of adjacent link assemblies 2, be difficult for making the inside debris or the entering dust of link assembly 2, and then be favorable to protecting the inside part of tow chain body 1, make its sustainability normal use for a long time, be favorable to guaranteeing normal operation of mechanical equipment.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A closed drag chain comprising:

a drag chain body (1); the drag chain body (1) is formed by assembling and installing a plurality of groups of chain link components (2);

a link assembly (2); the link assembly (2) comprises a link unit (3) and a seal (4);

a link unit (3); the chain link unit (3) comprises a cover plate I (31), a side plate (32), an arc-shaped step I (33), a cylindrical boss (34), a round hole (35), a mounting groove (36), a clamping column (37), an arc-shaped groove (310) and an arc-shaped protruding block (30), wherein two groups of side plates (32) are fixedly arranged on one side of the cover plate I (31), the arc-shaped step I (33) is fixedly arranged at one end of the cover plate I (31), the arc-shaped step I and the side plates (32) are mutually perpendicular, the arc-shaped groove (310) is formed in one side of the side plates (32), and the arc-shaped protruding block (30) is fixedly arranged on the other side of the side plates (32);

a seal (4); the sealing element (4) comprises a cover plate II (41), an arc boss II (42), a clamping groove I (43) and a clamping groove II (44), wherein the arc boss II (42) is fixedly arranged on one side of the cover plate II (41), one sides of the clamping groove I (43) and one side of the clamping groove II (44) are fixedly arranged on two sides of the cover plate II (41), when the chain link unit (3) is connected with the sealing element (4), the clamping groove I (43) and the clamping groove II (44) are clamped on the outer side of a clamping column (37), the cover plate II (41) is contacted with one side of a side plate (32), one group of arc protruding blocks (30) are matched with one another group of arc grooves (310), one group of cover plate I (31) of the chain link unit (3) is movably connected with one another group of arc steps I (33) of the chain link unit (3), and the cover plate II (41) of the sealing element (4) is movably connected with one group of arc steps II of the sealing element (4).

2. The closed drag chain according to claim 1, wherein the round hole (35) is formed in the side plate (32) and located at the inner side of the arc-shaped protruding block (30), and the cylindrical protruding block (34) is fixedly mounted at one side of the side plate (32) and located at the inner side of the arc-shaped groove (310).

3. A closed drag chain according to claim 2, wherein the cylindrical boss (34) is inserted into the circular hole (35) when two sets of adjacent link units (3) are connected.

4. The closed drag chain according to claim 1, wherein the link unit (3) further comprises a first bevel connection (38), a first clamping block (39), a second bevel connection (311) and a second clamping block (312), the first bevel connection (38) is arranged on the inner side of the arc-shaped protruding block (30), and the second clamping block (312) is fixedly arranged on the inner side of the arc-shaped protruding block (30).

5. The closed drag chain according to claim 4, wherein the second bevel (311) is formed on one side of the arc-shaped groove (310), and the first clamping block (39) is fixedly mounted on the inner side wall of the arc-shaped groove (310).

6. The closed drag chain of claim 5, wherein when two adjacent sets of link assemblies (2) are connected, the first clamp block (39) is located inside the second bevel (311), and the second clamp block (312) is located inside the first bevel (38).

7. The closed drag chain according to claim 1, wherein the mounting groove (36) is formed on a side of the side plate (32) away from the cover plate one (31), the clamping post (37) is fixedly mounted on an inner wall of the mounting groove (36), and the notch of the clamping groove one (43) and the notch of the clamping groove two (44) are opposite.