Open type flexible dust-free drag chain

Abstract

The utility model discloses an open type flexible dust-free drag chain which comprises at least one open line cavity and at least one fixed line cavity, each open line cavity is provided with an open pipe cavity in the length direction of a line set, and the two sides of each open pipe cavity are provided with an open inserting part and an open bearing groove part in the length direction of the line set respectively. Each fixed line cavity is provided with a fixed pipe cavity along the length direction of the line group, and two sides of the fixed pipe cavity are respectively provided with a fixed insertion part and a fixed bearing groove part along the length direction of the line group; the opening inserting part and the fixed inserting part are the same in structure, the opening bearing groove part and the fixed bearing groove part are the same in structure, and the opening line cavity and the fixed line cavity are sequentially combined and spliced through the opening inserting part, the fixed inserting part, the opening bearing groove part and the fixed bearing groove part. The drag chain can be combined and spliced in sequence, so that the drag chain can be conveniently adapted to different numbers of cables; when the cable is provided with a joint, the cable does not need to be cut off, opened and put in, and then the buckle is closed.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chains, in particular to an open-type flexible dust-free drag chain. Background Art

[0002] Drag chains, also known as cable protection drag chains, are devices that bind cables or wires or air and hydraulic pipes to facilitate their rotation and movement. Drag chains are used in reciprocating motion situations and can pull and protect built-in cables, oil pipes, air pipes, water pipes, etc. Drag chains have been widely used in CNC machine tools, electronic equipment, glass machinery, injection molding machine manipulators, handling machinery, plastic machinery, lifting equipment, woodworking machinery, automotive industry, industrial vehicles, metal processing machines, machine tools, casting machinery, port equipment, flat panel display equipment, semiconductor equipment and other industries.

[0003] Plastic drag chains are generally used on automation equipment. The advantage of using plastic drag chains is that they are light in weight and easy to move and operate automation equipment. In order to adapt to operation in clean rooms and vacuum environments, dust-free drag chains, also known as clean room drag chains, are used in clean rooms to bear electrical connection equipment and loads. They have the characteristics of friction resistance, no gas release, no dust accumulation, acid and alkali resistance and aging resistance. They are usually sleeved on the surface of the cable air pipe for sealing and dust prevention. Before installation, it is necessary to ensure that the internal cable air pipe cannot be bent, and the radius of the dust-free drag chain cannot be less than the cable diameter. For example, the Chinese patent with announcement number CN107546703A provides a flexible dust-free cable drag chain, including a cavity and a support body, the cavity includes a plurality of tube cavities arranged in an array, and the plurality of tube cavities are isolated from each other. The support body covers the outer contour of the tube cavity, and the support body is integrally formed with elastic material, does not generate noise and dust, is simple to thread, has the advantages of good bending performance and flame retardancy, and greatly reduces costs.

[0004] It is found in production practice that when the number of line groups of the above-mentioned dust-free drag chain increases or decreases, the dust-free drag chain needs to be replaced as a whole. Secondly, many data cables usually have connectors. Since the connectors are usually large, they cannot be directly threaded from one end of the dust-free drag chain. The connector can only be cut off and threaded before connecting the connector. This is very inconvenient for the installation of the data cable and may directly damage the performance of the data cable. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an open-type flexible dust-free drag chain, aiming to solve the technical defects of at least one existing dust-free drag chain in the background technology.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] The first aspect of the utility model provides an open-type flexible dust-free drag chain, comprising at least one open line cavity and at least one fixed line cavity, each of the open line cavity is provided with an open tube cavity along the length direction of the line group, and an open plug-in portion and an open groove portion are respectively provided on both sides of the open tube cavity along the length direction of the line group; each of the fixed line cavity is provided with a fixed tube cavity along the length direction of the line group, and a fixed plug-in portion and a fixed groove portion are respectively provided on both sides of the fixed tube cavity along the length direction of the line group; the opening plug-in portion and the fixed plug-in portion have the same structure, and the opening groove portion and the fixed groove portion have the same structure, and the open line cavity and the fixed line cavity are sequentially combined and spliced ​​through the opening plug-in portion, the fixed plug-in portion, the opening groove portion and the fixed groove portion.

[0008] Furthermore, the opening line cavity and the fixed line cavity are integrally formed of silicone or rubber material, and the cross-sectional shape of the opening tube cavity or the fixed tube cavity is a rounded rectangle, a circle, or a flat shape, which is adapted to the size and shape of the cable, and the cable is fixed in the opening line cavity and the fixed line cavity.

[0009] Furthermore, the open line cavity and the fixed line cavity are combined and spliced ​​along the length direction of the line group to form a U-shaped structure, including a curved portion and two straight portions arranged at both ends of the curved portion, and the distance between the free ends of the two straight portions is the effective stroke of the drag chain.

[0010] Furthermore, the open tube cavity is provided with an opening portion along the length direction of the wire group, and the opening portion is used to open the open tube cavity along the length direction; the open tube cavity is extended with an opening buckle portion and an opening slot portion on the upper and lower sides of the opening portion, and the opening buckle portion and the opening slot portion are continuously distributed along the length direction of the opening portion.

[0011] Specifically, the opening tube cavity is provided with the opening buckle part at the position of the opening part through an opening extension part, the opening buckle part corresponds to and cooperates with the opening slot part, and the buckle direction intersects with the combined splicing direction.

[0012] Furthermore, the opening plug-in portion and the opening groove portion are arranged on both sides of the opening lumen through an opening connection portion, and the opening connection portion, the opening plug-in portion and the opening groove portion are continuously extended along the length direction of the wire group.

[0013] Specifically, one of the opening connection portions is arranged at the end of the opening extension portion, and the cross sections of the opening plug-in portion and the opening groove portion are on the same horizontal line.

[0014] Furthermore, a fixed connection part is respectively provided on both sides of the fixed tube cavity, and the fixed plug-in part and the fixed groove part are respectively connected through the fixed connection part. The fixed connection part, the fixed plug-in part and the fixed groove part are extended and distributed continuously along the length direction of the wire group.

[0015] Preferably, the cross-sectional centers of the opening plug-in portion, the fixed plug-in portion, the opening groove portion and the fixed groove portion are on the same horizontal line.

[0016] The second aspect of the utility model provides another open-type flexible dust-free drag chain, including a plurality of open wire cavities, each of which is provided with an open tube cavity along the length direction of the wire group, and an open plug-in portion and an open groove portion are respectively provided on both sides of the open tube cavity along the length direction of the wire group, and a plurality of the open wire cavities are sequentially combined and spliced ​​through the open plug-in portions and the open groove portions, and the open tube cavities are isolated from each other and used to accommodate cables of the wire group.

[0017] By adopting the above technical solution, the open-type flexible dust-free drag chain of the embodiment of the utility model can be sequentially combined and spliced ​​through the socket splicing structures on both sides of the multiple open line cavities or fixed line cavities, so as to conveniently adapt to different numbers of cables; in addition, by setting the opening part on the open line cavity and the buckle structure corresponding to the opening part, the open tube cavity can be quickly opened and closed through the buckle structure. When the cable has a connector, it can be opened and inserted without cutting the cable and then closed. The dust-free drag chain has the advantages of light weight, strong flexibility, small bending radius and simple installation; it provides reliable bending performance within the service life of the equipment, reducing maintenance, downtime and total cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 This is a three-dimensional structural diagram of the open-type flexible dust-free drag chain of the utility model;

[0020] Figure 2 This is a main structural diagram of the open-type flexible dust-free drag chain of the utility model;

[0021] Figure 3 This is a side view of the structure of the open-type flexible dust-free drag chain of the utility model;

[0022] Figure 4This is a three-dimensional exploded structural diagram of the open-type flexible dust-free drag chain of the utility model;

[0023] Figure 5 This is a cross-sectional structural diagram of the first open-type flexible dust-free drag chain of the utility model;

[0024] Figure 6 This is a cross-sectional structural diagram of the second open-type flexible dust-free drag chain of the utility model;

[0025] Figure 7 This is a cross-sectional structural diagram of the third open-type flexible dust-free drag chain of the utility model;

[0026] In the figure, 100 is an open-type flexible dust-free drag chain, 101 is a straight part, and 102 is a curved part;

[0027] 110-opening line cavity, 111-opening tube cavity, 112-opening portion, 113-opening buckle portion, 114-opening slot portion, 115-opening plug portion, 116-opening bearing slot portion, 117-opening connecting portion, 118-opening extension portion;

[0028] 120 - a fixed line cavity, 121 - a fixed tube cavity, 122 - a fixed plug-in portion, 123 - a fixed socket portion, 124 - a fixed connection portion. DETAILED DESCRIPTION

[0029] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation method of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Example 1

[0031] like Figure 1-5As shown in , 7, the embodiment of the utility model provides an open-type flexible dust-free drag chain 100, including at least one open line cavity 110 and at least one fixed line cavity 120, each of the open line cavities 110 is provided with an open tube cavity 111 along the length direction of the line group, and an open plug-in portion 115 and an open bearing groove portion 116 are respectively provided on both sides of the open tube cavity 111 along the length direction of the line group; each of the fixed line cavities 120 is provided with a fixed tube cavity 121 along the length direction of the line group, and A fixed plug-in portion 122 and a fixed groove portion 123 are respectively provided on both sides of the fixed tube cavity 121 along the length direction of the line group; the opening plug-in portion 115 and the fixed plug-in portion 122 have the same structure, and the opening groove portion 116 and the fixed groove portion 123 have the same structure. The open line cavity 110 and the fixed line cavity 120 are combined and spliced ​​in sequence through the opening plug-in portion 115, the fixed plug-in portion 122, the opening groove portion 116 and the fixed groove portion 123.

[0032] Specifically, the opening line cavity 110 and the fixed line cavity 120 are integrally formed of silicone or rubber material, and the cross-sectional shape of the opening tube cavity 111 or the fixed tube cavity 121 is a rounded rectangle, a circle, or a flat shape, which is adapted to the size and shape of the cable, and the cable is fixed in the opening line cavity 110 and the fixed line cavity 120. Silicone or rubber has flexible properties, is conducive to integrated extrusion molding, and has good bending performance. Figure 2 As shown, the open wire cavity 110 and the fixed wire cavity 120 are combined and spliced ​​along the length direction of the wire group to form a U-shaped structure, including a curved portion 102 and two straight portions 101 arranged at both ends of the curved portion 102, and the distance between the free ends of the two straight portions 101 is the effective travel L of the drag chain. Thus, the drag chain maintains the shape of the cable in a natural state.

[0033] like Figure 4 , 5 As shown, the open tube cavity 111 is provided with an opening portion 112 along the length direction of the line group, and the opening portion 112 is used to open the open tube cavity 111 along the length direction; the open tube cavity 111 is extended with an opening buckle portion 113 and an opening slot portion 114 on the upper and lower sides of the opening portion 112, and the opening buckle portion 113 and the opening slot portion 114 are continuously distributed along the length direction of the opening portion 112.

[0034] Specifically, the opening tube cavity 111 is provided with the opening buckle portion 113 through an opening extension portion 118 at the position of the opening portion 112, and the opening buckle portion 113 is matched with the opening slot portion 114, and the buckle direction intersects with the combined splicing direction. The opening tube cavity can be opened and closed quickly through the buckle structure, and when the cable has a connector, it can be opened and inserted without cutting the cable and then closed.

[0035] like Figure 4 , 5 As shown, the opening plug-in portion 115 and the opening groove portion 116 are arranged on both sides of the opening tube cavity 111 through an opening connecting portion 117, and the opening connecting portion 117, the opening plug-in portion 115, and the opening groove portion 116 are continuously extended along the length direction of the line group.

[0036] Specifically, one of the opening connection portions 117 is disposed at the end of the opening extension portion 118 , and the cross sections of the opening plug-in portion 115 and the opening groove portion 116 are on the same horizontal line.

[0037] As shown in the figure, a fixed connecting part 124 is respectively provided on both sides of the fixed tube cavity 121, and the fixed plug-in part 122 and the fixed groove part 123 are respectively connected through the fixed connecting part 124. The fixed connecting part 124, the fixed plug-in part 122, and the fixed groove part 123 are continuously distributed along the length direction of the line group.

[0038] Preferably, the cross-sectional centers of the opening plug-in portion 115 , the fixed plug-in portion 122 , the opening groove portion 116 and the fixed groove portion 123 are on the same horizontal line.

[0039] Preferably, the cross-sections of each open tube cavity 111 and each fixed tube cavity 121 have the same height, so that the upper and lower sides of the combined dust-free support chain are consistent in height, which is conducive to dragging and reduces friction noise. Specifically, the cross-sections of the open plug-in portion 115, the fixed plug-in portion 122, the open slot portion 116 and the fixed slot portion 123 can be circular, semicircular, elliptical or other polygonal, preferably triangular, which is conducive to rapid insertion and blocking fixation.

[0040] like Figure 6As shown, the embodiment of the utility model also provides another open type flexible dust-free drag chain 100, including a plurality of open line cavities 110, each of the open line cavity 110 is provided with an open tube cavity 111 along the length direction of the line group, and an open plug-in portion 115 and an open groove portion 116 are respectively provided on both sides of the open tube cavity 111 along the length direction of the line group, and a plurality of the open line cavities 110 are sequentially combined and spliced ​​through the open plug-in portion 116 and the open groove portion 116, and the open tube cavities 111 are isolated from each other and used to accommodate cables of the line group.

[0041] The open-type flexible dust-free drag chain of the embodiment of the utility model can be sequentially combined and spliced ​​through the socket splicing structures on both sides of the multiple open line cavities or fixed line cavities, so as to conveniently adapt to different numbers of cables; in addition, the open line cavity is provided with an opening part and a buckle structure corresponding to the opening part, and the open tube cavity is quickly opened and closed through the buckle structure. When the cable has a joint, it can be opened and inserted without cutting the cable and then closed. The dust-free drag chain has the advantages of light weight, strong flexibility, small bending radius, and simple installation; it provides reliable bending performance within the service life of the equipment, reducing maintenance, downtime and total cost.

[0042] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An open-type flexible dust-free drag chain, characterized in that: It includes at least one open line cavity and at least one fixed line cavity, each of the open line cavity is provided with an open tube cavity along the length direction of the line group, and an open plug-in part and an open groove part are respectively provided on both sides of the open tube cavity along the length direction of the line group; each of the fixed line cavity is provided with a fixed tube cavity along the length direction of the line group, and a fixed plug-in part and a fixed groove part are respectively provided on both sides of the fixed tube cavity along the length direction of the line group; the structure of the opening plug-in part and the fixed plug-in part are the same, and the structure of the opening groove part and the fixed groove part are the same, and the open line cavity and the fixed line cavity are sequentially combined and spliced ​​through the opening plug-in part, the fixed plug-in part, the opening groove part and the fixed groove part.

2. The open-type flexible dust-free drag chain according to claim 1, characterized in that: The opening line cavity and the fixed line cavity are integrally formed of silicone or rubber material. The cross-sectional shape of the opening tube cavity or the fixed tube cavity is a rounded rectangle, a circle, or a flat shape, which is adapted to the size and shape of the cable, and the cable is fixed in the opening line cavity and the fixed line cavity.

3. The open-type flexible dust-free drag chain according to claim 2, characterized in that: The open line cavity and the fixed line cavity are combined and spliced ​​along the length direction of the line group to form a U-shaped structure, including a curved portion and two straight portions arranged at both ends of the curved portion, and the distance between the free ends of the two straight portions is the effective stroke of the drag chain.

4. The open-type flexible dust-free drag chain according to claim 1, characterized in that: The open tube cavity is provided with an opening portion along the length direction of the wire group, and the opening portion is used to open the open tube cavity along the length direction; the open tube cavity is extended with an opening buckle portion and an opening slot portion on the upper and lower sides of the opening portion, and the opening buckle portion and the opening slot portion are continuously distributed along the length direction of the opening portion.

5. The open-type flexible dust-free drag chain according to claim 4, characterized in that: The opening tube cavity is provided with the opening buckle part through an opening extension part at the position of the opening part, and the opening buckle part is matched with the opening slot part, and the buckle direction intersects with the combination splicing direction.

6. The open-type flexible dust-free drag chain according to claim 5, characterized in that: The opening plug-in portion and the opening groove portion are arranged on both sides of the opening lumen through an opening connection portion, and the opening connection portion, the opening plug-in portion and the opening groove portion are continuously extended along the length direction of the line group.

7. The open-type flexible dust-free drag chain according to claim 6, characterized in that: One of the opening connection parts is arranged at the end of the opening extension part, and the cross sections of the opening plug-in part and the opening groove part are on the same horizontal line.

8. The open-type flexible dust-free drag chain according to claim 1, characterized in that: A fixed connection part is respectively arranged on both sides of the fixed tube cavity, and the fixed plug part and the fixed groove part are respectively connected through the fixed connection part. The fixed connection part, the fixed plug part and the fixed groove part are continuously distributed along the length direction of the wire group.

9. The open-type flexible dust-free drag chain according to claim 8, characterized in that: The cross-sectional centers of the opening plug-in portion, the fixed plug-in portion, the opening groove portion and the fixed groove portion are on the same horizontal line.

10. An open-type flexible dust-free drag chain, characterized in that: It includes multiple open wire cavities, each of which is provided with an open tube cavity along the length direction of the wire group, and open plug-in parts and open groove parts are respectively provided on both sides of the open tube cavity along the length direction of the wire group. Multiple open wire cavities are sequentially combined and spliced ​​through the open plug-in parts and the open groove parts, and the open tube cavities are isolated from each other and used to accommodate the cables of the wire group.

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