Corrugated pipe dust-free drag chain

Abstract

The utility model discloses a corrugated pipe dust-free drag chain which comprises a drag chain outer shell, terminal studs arranged at the two ends of the drag chain outer shell and a data power line set arranged in a pipe cavity of the drag chain outer shell, and the two ends of the data power line set are fixed to the terminal studs through wire arranging supports respectively. A dust-free drag chain sealing structure is further arranged on one side corresponding to the drag chain outer shell and comprises a sealing base body and a sealing tooth-shaped wheel rotationally arranged in the sealing base body, and the sealing tooth-shaped wheel is composed of a first tooth-shaped wheel body and a second tooth-shaped wheel body which are arranged in parallel in a spaced mode. The first tooth-shaped wheel and the second tooth-shaped wheel are arranged in parallel at intervals in the direction perpendicular to the length direction of the drag chain outer shell, a closed wheel groove is formed between the first tooth-shaped wheel and the second tooth-shaped wheel, the closed wheel groove extends out of the opening part of one side of the closed base body, and the closed wheel groove acts on the drag chain outer shell from the opening position. When the cable air pipe is placed in the drag chain and needs to be closed, the drag chain can be quickly closed.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chains, in particular to a bellows 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 in 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 operations in clean rooms and vacuum environments, dust-free drag chains, also known as clean room drag chains, are needed. They 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 cable air pipes 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 CN214541621 U provides a dust-free drag chain, including a shell, a keel and a support frame; the shell includes a bending block, a stretching block connected to the bending block and a joint end block respectively connecting the bending block and the stretching block; the bending block includes a curved edge, a clamping block and a protective strip; the stretching block includes a stretching edge, an inserting block and a rib; a threading cavity is provided between the curved edge and the stretching edge, and the clamping block and the inserting block are alternately engaged in sequence; the keel is passed through the threading cavity; the keel includes at least two connecting blocks and a fixed block; the support frame is clamped in the threading cavity; the support frame includes a wiring block, a connecting block and a sleeve block; the two ends of the connecting block are respectively connected to the curved edge and the stretching edge, and the sleeve block is mounted on the outside of the connecting block. The above-mentioned dust-free drag chain supports and installs the cables by setting a wiring block to prevent the cables from being entangled, improve the heat dissipation performance of the cables, and ensure work efficiency; and the cables are mounted in the shell by setting a connecting block, which further improves the heat dissipation performance and improves work efficiency.

[0004] The existing dust-free drag chain housing is usually formed by buckling two upper and lower shells. When the cable air pipe is placed in the drag chain and needs to be closed, the side strips of the two shells need to be quickly buckled together, which is usually done manually and has low efficiency. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a bellows dust-free drag chain, aiming to solve the technical defect in the background technology that the shell cannot be fastened.

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

[0007] The utility model provides a corrugated tube dust-free drag chain, comprising a drag chain outer shell, wiring terminals arranged at both ends of the drag chain outer shell, and a data power line group arranged in a tube cavity portion of the drag chain outer shell, wherein the two ends of the data power line group are fixed to the wiring terminals by a row of wire brackets respectively; a dust-free drag chain closing structure is also arranged on one side corresponding to the drag chain outer shell, the dust-free drag chain closing structure comprises a closing base, a closing toothed wheel rotatably arranged in the closing base, the closing toothed wheel consists of a first toothed wheel and a second toothed wheel arranged in parallel and spaced apart from each other, the first toothed wheel and the second toothed wheel are arranged in parallel and spaced apart from each other perpendicular to the length direction of the drag chain outer shell, a closed wheel groove is formed between the first toothed wheel and the second toothed wheel, the closed wheel groove extends from an opening portion on one side of the closing base, and the closed wheel groove acts on the drag chain outer shell from the opening position.

[0008] Furthermore, a roller cavity is provided in the closed base body, an opening is provided on one side of the roller cavity, and a closed cover plate is provided on the roller cavity.

[0009] Furthermore, an axial hole is provided at the center of the closed toothed wheel, a rotating shaft and a bearing are provided in the axial hole, and the closed toothed wheel is arranged in the roller cavity through the rotating shaft and the bearing.

[0010] Furthermore, the closed base body is provided with closed guide grooves on both sides of the opening along the length direction of the outer shell of the drag chain.

[0011] Specifically, the outer shell of the drag chain includes an upper shell and a lower shell, and the upper shell and the lower shell are respectively provided with snap-fitting edge strips on both sides along the length direction, and the two snap-fitting edge strips that fit together cooperate with the closed wheel groove; an alignment column and an alignment hole are respectively provided between the two snap-fitting edge strips that fit together, and as the closed toothed wheel rolls, the alignment column enters the alignment hole.

[0012] Furthermore, the upper shell and the lower shell are buckled together along the length direction to form a U-shaped structure, including a curved portion, and two ends of the curved portion, at least one of which is provided with a straight portion, so that the drag chain maintains the shape of the cable in a natural state.

[0013] Furthermore, the straight portion and the curved portion are both formed by buckling the upper shell and the lower shell along the length direction, and opposite ends of the straight portion and the curved portion are respectively provided with fusion ports for connection in a melting manner.

[0014] Furthermore, the alignment posts and the alignment holes on the two mutually fitted buckling side strips correspond to each other and are arranged in an interlaced manner.

[0015] Furthermore, the surfaces of the upper shell and the lower shell are respectively provided with corrugated parts, and tubular cavity parts are formed in the upper shell and the lower shell; the toothed parts of the first toothed wheel and the second toothed wheel are respectively adapted to the intervals of the corrugated parts on the upper shell and the lower shell.

[0016] Specifically, the wiring terminal is composed of a first terminal block and a second terminal block, and the first terminal block and the second terminal block are respectively arranged at two ends of the outer shell of the drag chain and are buckled with each other.

[0017] Specifically, the data power line group includes a first line group and a second line group. The line bracket consists of a line board, a first slot group and a second slot group arranged on the upper and lower sides of the line board. The first line group and the second line group are respectively arranged in the first slot group and the second slot group.

[0018] By adopting the above-mentioned technical scheme, the corrugated tube dust-free drag chain of the embodiment of the utility model is further provided with a dust-free drag chain closing structure on one side corresponding to the drag chain outer shell. The closed base body is used to rotate the closed toothed wheel arranged in the closed base body. The closed toothed wheel consists of a first toothed wheel and a second toothed wheel arranged in parallel and spaced relation. The first toothed wheel and the second toothed wheel are arranged in parallel and spaced relation perpendicular to the length direction of the drag chain outer shell. A closed wheel groove is formed between the first toothed wheel and the second toothed wheel. The closed wheel groove acts on two interlocking edge strips that fit each other. As the closed toothed wheel rolls, the alignment column enters the alignment hole. When the cable air pipe is placed in the drag chain and needs to be closed, the drag chain can be quickly closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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.

[0020] Figure 1 This is a three-dimensional structural diagram of the bellows dust-free drag chain of the utility model;

[0021] Figure 2 This is a three-dimensional exploded structural diagram of the bellows dust-free drag chain of the utility model;

[0022] Figure 3 It is a three-dimensional structural diagram of the bellows dust-free drag chain of the utility model in use state;

[0023] Figure 4 It is a three-dimensional decomposition structure diagram of the bellows dust-free drag chain of the utility model in use state;

[0024] Figure 5 It is a three-dimensional structural diagram of the dust-free drag chain closed structure of the utility model;

[0025] Figure 6 This is a three-dimensional exploded structural diagram of the dust-free drag chain enclosed structure of the utility model;

[0026] Figure 7 This is a three-dimensional structural diagram of the cable bracket of the utility model;

[0027] Among them, 10-dust-free drag chain closed structure, 11-closed base, 111-roller cavity, 112-closed guide groove, 12-closed cover plate, 13-closed toothed wheel, 131-axis hole, 132-first toothed wheel, 133-second toothed wheel, 134-closed wheel groove, 14-bearing, 15-rotating shaft;

[0028] 20-Drag chain outer shell,

[0029] 210-straight portion, 220-curved portion, 230-lumen portion;

[0030] 201-upper shell, 202-lower shell, 203-fastening edge strip, 204-corrugated part, 205-alignment column, 206-alignment hole, 207-fusion opening;

[0031] 30-wiring terminal, 31-first terminal block, 32-second terminal block;

[0032] 40-cable bracket, 41-cable board, 42-first slot group, 43-second slot group;

[0033] 50 - data power line group, 51 - first line group, 52 - second line group. DETAILED DESCRIPTION

[0034] 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.

[0035] Example 1

[0036] like Figure 1-5As shown, the embodiment of the utility model provides a corrugated tube dust-free drag chain, including a drag chain outer shell 20, wiring terminals 30 arranged at both ends of the drag chain outer shell 20, and a data power line group 50 arranged in a tube cavity 230 of the drag chain outer shell 20, and the two ends of the data power line group 50 are fixed to the wiring terminal 30 by a line bracket 40 respectively; a dust-free drag chain closed structure 10 is also arranged on one side corresponding to the drag chain outer shell 20, and the dust-free drag chain closed structure 10 includes a closed base 11, a rotatable base 11 arranged on the closed base 1 1, the closed toothed wheel 13 is composed of a first toothed wheel 132 and a second toothed wheel 133 which are arranged parallel to each other and spaced apart from each other, the first toothed wheel 132 and the second toothed wheel 133 are arranged parallel to each other and spaced apart from each other perpendicular to the length direction of the drag chain outer shell 20, a closed wheel groove 134 is formed between the first toothed wheel 132 and the second toothed wheel 133, the closed wheel groove 134 extends from an opening portion on one side of the closed base 11, and the closed wheel groove 134 acts on the drag chain outer shell 20 from the opening position.

[0037] like Figure 5 , 6 As shown, a roller cavity 111 is provided in the closed base 11, an opening is provided on one side of the roller cavity 111, and a closed cover plate 12 is provided on the roller cavity 111. An axial hole 131 is provided at the center of the closed toothed wheel 13, a rotating shaft 15 and a bearing 14 are provided in the axial hole 131, and the closed toothed wheel 13 is arranged in the roller cavity 111 through the rotating shaft 15 and the bearing 14. Optionally, the closed base 11 is provided with closed guide grooves 112 on both sides of the opening along the length direction of the outer shell 20 of the drag chain.

[0038] like Figure 4 As shown, the outer shell 20 of the drag chain includes an upper shell 201 and a lower shell 202, and the upper shell 201 and the lower shell 202 are respectively provided with snap-fitting side strips 203 on both sides along the length direction, and the two snap-fitting side strips 203 that fit together cooperate with the closed wheel groove 134; an alignment column 205 and an alignment hole 206 are respectively provided between the two snap-fitting side strips 203 that fit together, and as the closed toothed wheel 13 rolls, the alignment column 205 enters the alignment hole 206.

[0039] like Figure 3 As shown, the upper shell 201 and the lower shell 202 are buckled together along the length direction to form a U-shaped structure, including a curved portion 220, and a straight portion 210 is arranged at at least one end of the two ends of the curved portion 220. Thus, the drag chain maintains the shape of the cable in a natural state.

[0040] Specifically, the straight portion 210 and the curved portion 220 are formed by buckling the upper shell 201 and the lower shell 202 along the length direction, and opposite ends of the straight portion 210 and the curved portion 220 are respectively provided with fusion openings 207 for connection by melting.

[0041] The alignment posts 205 and the alignment holes 206 on the two mutually fitting buckling side strips 203 correspond to each other and are arranged in an interlaced manner.

[0042] like Figure 3 , 4 As shown, the surfaces of the upper shell 201 and the lower shell 202 are respectively provided with corrugated portions 204, and a tubular cavity portion 230 is formed in the upper shell 201 and the lower shell 202; the toothed portions of the first toothed wheel 132 and the second toothed wheel 133 are respectively adapted to the intervals of the corrugated portions 204 on the upper shell 201 and the lower shell 202.

[0043] like Figure 1 , 7 As shown, the wiring terminal 30 is composed of a first terminal block 31 and a second terminal block 32. The first terminal block 31 and the second terminal block 32 are respectively arranged at two ends of the drag chain outer shell 20 and are buckled with each other.

[0044] like Figure 4 , 7 As shown, the data power line group 50 includes a first line group 51 and a second line group 51, and the cable bracket 40 consists of a cable board 41, a first slot group 42 and a second slot group 43 arranged on the upper and lower sides of the cable board 41, and the first line group 51 and the second line group 52 are respectively arranged in the first slot group 42 and the second slot group 43.

[0045] The corrugated tube dust-free drag chain of the embodiment of the utility model is further provided with a dust-free drag chain closing structure on one side corresponding to the drag chain outer shell. A closed base is used to rotate a closed toothed wheel arranged in the closed base. The closed toothed wheel consists of a first toothed wheel and a second toothed wheel arranged in parallel and spaced apart from each other. The first toothed wheel and the second toothed wheel are arranged in parallel and spaced apart from each other perpendicular to the length direction of the drag chain outer shell. A closed wheel groove is formed between the first toothed wheel and the second toothed wheel. The closed wheel groove acts on two interlocking edge strips that fit each other. As the closed toothed wheel rolls, the alignment column enters the alignment hole. When the cable air pipe is placed in the drag chain and needs to be closed, the drag chain can be quickly closed.

[0046] 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. A bellows dust-free drag chain, comprising a drag chain outer shell, wiring terminals arranged at both ends of the drag chain outer shell, and a data power line group arranged in a tube cavity of the drag chain outer shell, wherein the wiring terminals are respectively fixed with a row of wire brackets at both ends of the data power line group; characterized in that: A dust-free drag chain closing structure is also provided on one side corresponding to the drag chain outer shell, and the dust-free drag chain closing structure includes a closing base and a closing toothed wheel rotatably arranged in the closing base, and the closing toothed wheel is composed of a first toothed wheel and a second toothed wheel arranged in parallel and spaced apart from each other, and the first toothed wheel and the second toothed wheel are arranged in parallel and spaced apart from each other perpendicular to the length direction of the drag chain outer shell, and a closed wheel groove is formed between the first toothed wheel and the second toothed wheel, and the closed wheel groove extends from an opening part on one side of the closing base, and the closed wheel groove acts on the drag chain outer shell from the opening position.

2. The bellows dust-free drag chain according to claim 1, characterized in that: A roller cavity is arranged in the closed base, an opening is arranged on one side of the roller cavity, and a closed cover plate is arranged on the roller cavity; an axial hole is arranged at the center of the closed toothed wheel, a rotating shaft and a bearing are arranged in the axial hole, and the closed toothed wheel is arranged in the roller cavity through the rotating shaft and the bearing.

3. The bellows dust-free drag chain according to claim 1, characterized in that: The closed base body is provided with closed guide grooves on both sides of the opening along the length direction of the outer shell of the drag chain.

4. The bellows dust-free drag chain according to claim 1, characterized in that: The outer shell of the drag chain includes an upper shell and a lower shell, and the upper shell and the lower shell are respectively provided with snap-fitting edge strips on both sides along the length direction, and the two snap-fitting edge strips that fit together cooperate with the closed wheel groove; an alignment column and an alignment hole are respectively provided between the two snap-fitting edge strips that fit together, and as the closed toothed wheel rolls, the alignment column enters the alignment hole.

5. The bellows dust-free drag chain according to claim 4, characterized in that: The upper shell and the lower shell are buckled together along the length direction to form a U-shaped structure, including a curved portion, and two ends of the curved portion, at least one of which is provided with a straight portion.

6. The bellows dust-free drag chain according to claim 5, characterized in that: The straight portion and the curved portion are both formed by buckling the upper shell and the lower shell along the length direction. The opposite ends of the straight portion and the curved portion are respectively provided with fusion ports for connection in a melting manner.

7. The bellows dust-free drag chain according to claim 4, characterized in that: The alignment posts and alignment holes on the two mutually fitting buckling side strips correspond to each other and are arranged in an interlaced manner.

8. The bellows dust-free drag chain according to claim 4, characterized in that: The upper shell and the lower shell are respectively provided with corrugated parts on their surfaces, and a tubular cavity is formed inside the upper shell and the lower shell; the toothed parts of the first toothed wheel and the second toothed wheel are respectively adapted to the intervals between the corrugated parts on the upper shell and the lower shell.

9. The bellows dust-free drag chain according to claim 1, characterized in that: The wiring terminal is composed of a first terminal block and a second terminal block. The first terminal block and the second terminal block are respectively arranged at two ends of the outer shell of the drag chain and are buckled with each other.

10. The bellows dust-free drag chain according to claim 9, characterized in that: The data power line group includes a first line group and a second line group. The cable bracket consists of a cable board, a first slot group and a second slot group arranged on the upper and lower sides of the cable board. The first line group and the second line group are respectively arranged in the first slot group and the second slot group.

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