Dust-free drag chain sealing structure

Abstract

The utility model discloses a dust-free drag chain sealing structure which comprises a sealing base body and a sealing tooth-shaped wheel rotationally arranged in the sealing base body, the sealing tooth-shaped wheel is composed of a first tooth-shaped wheel and a second tooth-shaped wheel, and the first tooth-shaped wheel and the second tooth-shaped wheel 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 acts on the two buckled edge strips which are attached to each other, and the buckled edge strips rotate along with rolling of the closed tooth-shaped wheel. The alignment columns enter the alignment holes, and the clamps enter the clamping holes. 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 dust-free drag chain closed structure. 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 dust-free drag chain closing structure, 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 first aspect of the utility model provides a dust-free drag chain closed structure, including a closed base body and a closed toothed wheel rotatably 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 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 closed base body, 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 buckling side strips on both sides along the length direction, and the two buckling side strips that fit each other cooperate with the closed wheel groove.

[0012] Furthermore, alignment posts and alignment holes are respectively provided between the two interlocking side strips that are in contact with each other, and a plurality of clips and clip holes are evenly provided between the two interlocking side strips that are in contact with each other along the length direction of the river. As the closed toothed wheel rolls, the alignment posts enter the alignment holes, and the clips enter the clip holes.

[0013] Furthermore, the surfaces of the upper shell and the lower shell are respectively provided with corrugated parts, and the toothed parts of the first toothed wheel and the second toothed wheel are respectively matched with the intervals of the corrugated parts on the upper shell and the lower shell.

[0014] By adopting the above technical solution, the dust-free drag chain closed structure of the utility model embodiment is provided with a closed base body and a closed toothed wheel rotatingly arranged in the closed base body, wherein the closed toothed wheel is composed of a first toothed wheel and a second toothed wheel arranged in parallel and spaced relation to each other, wherein the first toothed wheel and the second toothed wheel are arranged in parallel and spaced relation to 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 acts on the two buckling side strips that fit each other, and as the closed toothed wheel rolls, the alignment column enters the alignment hole, and the clip enters the clip 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

[0015] 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.

[0016] Figure 1 It is a three-dimensional structural diagram of the dust-free drag chain closed structure of the utility model;

[0017] Figure 2 This is a three-dimensional exploded structural diagram of the dust-free drag chain enclosed structure of the utility model;

[0018] Figure 3 It is a three-dimensional structural diagram of the dust-free drag chain closed structure of the utility model in use state;

[0019] Figure 4 It is a three-dimensional decomposition structure diagram of the dust-free drag chain closed structure of the utility model in use state;

[0020] 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;

[0021] 20-drag chain outer shell, 21-upper shell, 22-lower shell, 23-fastening edge strip, 24-corrugated part, 25-clip, 26-clip hole, 27-alignment column, 28-alignment hole. DETAILED DESCRIPTION

[0022] 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.

[0023] Example 1

[0024] like Figure 1-4 As shown, an embodiment of the utility model provides a dust-free drag chain closed structure 10, including a closed base 11, and a closed toothed wheel 13 rotatably arranged in the closed base 11, wherein the closed toothed wheel 13 is composed of a first toothed wheel 132 and a second toothed wheel 133 arranged in parallel and spaced apart from each other, wherein the first toothed wheel 132 and the second toothed wheel 133 are arranged in parallel and spaced apart from each other perpendicular to the length direction of the drag chain outer shell 20, and a closed wheel groove 134 is formed between the first toothed wheel 132 and the second toothed wheel 133, wherein 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.

[0025] like Figure 1 , 2 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. Figure 1 , 2 As shown, the closed toothed wheel 13 is provided with an axial hole 131 at its center, 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 .

[0026] Optionally, the closed base 11 is provided with closed guide grooves 112 on both sides of the opening along the length direction of the drag chain outer shell 20 .

[0027] like Figure 3 , 4 As shown, the outer shell 20 of the drag chain includes an upper shell 21 and a lower shell 22 , and the upper shell 21 and the lower shell 22 are respectively provided with snap-fitting side strips 23 on both sides along the length direction, and the two snap-fitting side strips 23 that fit each other cooperate with the closed wheel groove 134 .

[0028] Specifically, an alignment column 27 and an alignment hole 28 are respectively provided between the two interlocking side strips 23 that are in contact with each other, and a plurality of clips 25 and clip holes 26 are evenly provided between the two interlocking side strips 23 that are in contact with each other along the length direction of the river. As the closed toothed wheel 13 rolls, the alignment column 27 enters the alignment hole 28, and the clip 25 enters the clip hole 26.

[0029] like Figure 3 , 4 As shown, the surfaces of the upper shell 21 and the lower shell 22 are respectively provided with corrugated parts 24, and the toothed parts of the first toothed wheel 132 and the second toothed wheel 133 are respectively adapted to the intervals of the corrugated parts 24 on the upper shell 21 and the lower shell 22.

[0030] The dust-free drag chain closure structure of the utility model embodiment is through a closed base, and a closed toothed wheel arranged in the closed base is rotated, the closed toothed wheel is composed of a first toothed wheel and a second toothed wheel arranged parallel to each other, the first toothed wheel and the second toothed wheel are arranged parallel to 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 acts on the two mutually fitting side strips, and as the closed toothed wheel rolls, the alignment column enters the alignment hole, and the clip enters the clip hole. When the cable air pipe is placed in the drag chain and needs to be closed, the drag chain can be quickly closed.

[0031] 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 dust-free drag chain closed structure, characterized in that: The invention comprises a closed base body and a closed toothed wheel rotatably arranged in the closed base body, wherein the closed toothed wheel is composed of a first toothed wheel and a second toothed wheel which are arranged in parallel and spaced apart from each other, wherein 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 outer shell of the drag chain, and a closed wheel groove is formed between the first toothed wheel and the second toothed wheel, wherein the closed wheel groove extends from an opening portion on one side of the closed base body, and the closed wheel groove acts on the outer shell of the drag chain from the opening position.

2. The dust-free drag chain closed structure 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.

3. The dust-free drag chain closed structure according to claim 2, characterized in that: 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.

4. The dust-free drag chain closed structure 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.

5. The dust-free drag chain closed structure according to claim 1, characterized in that: The outer shell of the drag chain includes an upper shell and a lower shell. The upper shell and the lower shell are respectively provided with buckling side strips on both sides along the length direction. The two buckling side strips that fit each other cooperate with the closed wheel groove.

6. The dust-free drag chain closure structure according to claim 5, characterized in that: Alignment posts and alignment holes are respectively arranged between the two interlocking side strips that are in contact with each other, and multiple clips and clip holes are evenly arranged between the two interlocking side strips that are in contact with each other along the length direction of the river. As the closed toothed wheel rolls, the alignment posts enter the alignment holes and the clips enter the clip holes.

7. The dust-free drag chain closure structure according to claim 5, characterized in that: The upper shell and the lower shell are respectively provided with corrugated parts on their surfaces, and the toothed parts of the first toothed wheel and the second toothed wheel are respectively matched with the intervals of the corrugated parts on the upper shell and the lower shell.

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