Drag chain structure

Abstract

The utility model provides a drag chain structure. The drag chain structure comprises a plurality of drag chain blocks which are connected with one another to form a drag chain main body; a ball part is arranged at the connecting position of the front end of each drag chain block, a concave ball part is arranged at the connecting position of the rear end of each drag chain block, and the ball part on each drag chain block is rotationally arranged on the concave ball part of the previous drag chain block. Therefore, the drag chain main body realizes small turning radius movement, and the other drag chain main body in the direction perpendicular to the small turning radius realizes large-radius turning. The drag chain structure overcomes the defects that a drag chain structure in the prior art can only be bent in one direction and is not suitable for wiring in a C-shaped arm or a G-shaped arm.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chains, in particular to a drag chain structure. Background Art

[0002] Drag chains are widely used in occasions of reciprocating motion, and can pull and protect built-in cables. The existing drag chain structure can only bend in one direction and cannot bend in two directions. Therefore, it cannot be used in C-arms / G-arms, because the C-arm / G-arm itself is curved, and the reciprocating motion in the track also requires bending. Therefore, the drag chain structure of the prior art is not suitable for the structure of wiring inside the C-arm / G-arm.

[0003] In summary, the drag chain structure of the prior art can only bend in one direction, and has the defect of being unsuitable for structures with internal wiring of a C-shaped arm / G-shaped arm. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a drag chain structure to solve the above defects in the prior art.

[0005] According to a first aspect of the utility model, a drag chain structure is provided, comprising:

[0006] A plurality of mutually connected drag chain blocks, wherein the plurality of drag chain blocks are mutually connected to form a drag chain body;

[0007] Among them, a ball part is provided at the connection of the front end of each drag chain block, and a concave ball part is provided at the connection of the rear end of each drag chain block. The ball part on each drag chain block is rotatably set on the concave ball part of the previous drag chain block, so that the drag chain body can realize a small turning radius movement and another drag chain body in a vertical direction to the small turning radius can realize a large radius turn.

[0008] Optionally, both sides of the ball portion and the concave ball portion are provided with limiting steps, so that the drag chain body bends in the first direction to achieve a small turning radius movement.

[0009] Optionally, the front end face and the rear end face of each drag chain block are configured as an inclined surface and a vertical surface, so that the drag chain body bends in the second direction to achieve a large radius turn, and the inclination direction of the inclined surface is the same as the second direction.

[0010] Optionally, each ball portion and concave ball portion is provided with a circular hole, and the ball portion on each drag chain block is rotatably arranged on the concave ball portion of the previous drag chain block through a pin shaft or a bolt passing through the corresponding circular hole.

[0011] Optionally, the circular hole on each ball portion is arc-shaped with large ends at two sides and a small middle portion.

[0012] Optionally, three side surfaces of the drag chain block away from the ball portion and the concave ball portion are provided with slide grooves, a slide shaft is provided in the slide groove, and the pulley is sleeved on the slide shaft.

[0013] Through a drag chain structure of the utility model, through a plurality of mutually connected drag chain blocks, the plurality of drag chain blocks are mutually connected to form a drag chain body; wherein, a ball portion is provided at the connection of the front end of each drag chain block, and a concave ball portion is provided at the connection of the rear end of each drag chain block, and the ball portion on each drag chain block is rotatably arranged on the concave ball portion of the previous drag chain block, so that the drag chain body can realize a small turning radius movement and another drag chain body in a perpendicular direction to the small turning radius can realize a large radius turning setting, so the drag chain structure of the present application can realize bending in two perpendicular directions to match the structure of the internal wiring of the C-shaped arm / G-shaped arm. Therefore, the utility model solves the defect that the drag chain structure of the prior art can only bend in one direction and is not suitable for the structure of the internal wiring of the C-shaped arm / G-shaped arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of a drag chain structure provided by the utility model;

[0015] Figure 2 It is a structural schematic diagram of a drag chain block of a drag chain structure provided by the utility model from a first perspective;

[0016] Figure 3 It is a structural schematic diagram of a drag chain block of a drag chain structure provided by the utility model from a second perspective;

[0017] Figure 4 It is a structural schematic diagram of a drag chain block of a drag chain structure provided by the utility model from a third perspective;

[0018] Figure 5 It is a structural schematic diagram of relative rotation between two adjacent drag chain blocks of a drag chain structure provided by the utility model;

[0019] Figure 6 It is a structural schematic diagram of a drag chain structure provided by the utility model, in which pulleys are installed on two adjacent drag chain blocks;

[0020] Figure 7 It is a schematic diagram of the overall structure of a pulley installed on a drag chain main body of a drag chain structure provided by the utility model;

[0021] Figure 8 It is a cross-sectional view of a ball portion of a drag chain structure provided by the utility model;

[0022] Fig. 9 The utility model is a schematic diagram of the internal structure of a drag chain structure provided by the present invention, in which a pin shaft or a bolt is installed between two adjacent drag chain blocks.

[0023] List of reference numerals:

[0024] 10. Drag chain block; 20. Ball part; 30. Concave ball part; 40. Inclined surface; 50. Vertical surface; 60. Limiting step; 70. Pulley; 80. Pin or bolt; 90. Round hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Reference Figures 1 to 9 The utility model provides a drag chain structure, which can solve the defect that the drag chain structure in the prior art can only bend in one direction and is not suitable for the structure of wiring inside the C-shaped arm / G-shaped arm.

[0029] The utility model provides a drag chain structure, comprising: a plurality of mutually connected drag chain blocks 10, wherein the plurality of drag chain blocks 10 are mutually connected to form a drag chain body;

[0030] Among them, a ball portion 20 is provided at the connection of the front end of each drag chain block 10, and a concave ball portion 30 is provided at the connection of the rear end of each drag chain block 10. The ball portion 20 on each drag chain block 10 is rotatably set on the concave ball portion 30 of the previous drag chain block 10, so that the drag chain body can realize a small turning radius movement and another drag chain body in a vertical direction to the small turning radius can realize a large radius turn.

[0031] Among them, cables can be arranged inside the drag chain body, and the drag chain body is located in the C-shaped arm / G-shaped arm. The ball part 20 and the concave ball part 30 are both spherical and concave ball structures. After the two are connected, a small turning radius movement can be achieved, and the other can also have freedom in the direction perpendicular to it, thereby realizing a large radius turning of the drag chain body and its internal wiring harness.

[0032] The utility model provides a drag chain structure, which is formed by connecting a plurality of drag chain blocks 10 to each other, and the plurality of drag chain blocks 10 are connected to each other to form a drag chain body; a ball portion 20 is provided at the connection of the front end of each drag chain block 10, and a concave ball portion 30 is provided at the connection of the rear end of each drag chain block 10, and the ball portion 20 on each drag chain block 10 is rotatably arranged on the concave ball portion 30 of the previous drag chain block 10, so that the drag chain body can realize a small turning radius movement and another drag chain body in a perpendicular direction to the small turning radius can realize a large radius turning setting, so the drag chain structure of the present application can realize bending in two perpendicular directions to match the structure of the internal wiring of the C-shaped arm / G-shaped arm. Therefore, the utility model solves the defect that the drag chain structure of the prior art can only bend in one direction and is not suitable for the structure of the internal wiring of the C-shaped arm / G-shaped arm.

[0033] Reference Figure 3 to Figure 4 Optionally, both sides of the ball portion 20 and the concave ball portion 30 are provided with limiting steps 60, so that the drag chain body bends in the first direction to achieve a small turning radius movement.

[0034] The limiting step 60 enables the small turning radius to reach the designed dimension value, and the specific value can be determined according to the needs. The setting of the limiting step 60 can prevent the drag chain body from bending in the opposite direction, that is, the opposite direction of the first direction.

[0035] Reference Figure 2 Optionally, the front end face and the rear end face of each drag chain block 10 are set as an inclined surface 40 and a vertical surface 50, so that the drag chain body bends in the second direction B to achieve a large radius turn, and the inclination direction of the inclined surface 40 is in the same direction as the second direction B.

[0036] The limitation of the inclined surface 40 and the vertical surface 50 can control the size of the large turning radius to be within a desired fixed range.

[0037] Reference Fig. 9 Optionally, each ball portion 20 and concave ball portion 30 is provided with a circular hole 90, and the ball portion 20 on each drag chain block 10 is rotatably set on the concave ball portion 30 of the previous drag chain block 10 through a pin or bolt 80 passing through the corresponding circular hole 90.

[0038] Reference Figure 8 Optionally, the circular hole 90 on each ball portion 20 is arc-shaped with large ends and a small middle.

[0039] Among them, the above-mentioned arrangement can improve the degree of freedom between two adjacent drag chain blocks 10 without being too high. Each drag chain block can be twisted slightly to achieve bending in another direction. In addition, due to the limitation of the inclined surface 40 and the vertical surface 50, and the middle narrowest point of the arc-shaped circular hole 90 on the ball part 20 and the cooperation with the pin shaft or bolt 80, the large turn of the drag chain body can be supported in the reverse direction and will not bend.

[0040] Reference Figure 6 to Figure 7 Optionally, three side surfaces of the drag chain block 10 away from the ball portion 20 and the concave ball portion 30 are provided with slide grooves, and a slide shaft is provided in the slide groove, and the pulley 70 is mounted on the slide shaft.

[0041] The above arrangement enables the drag chain body to slide smoothly in the C-arm / G-arm track, and the cable to slide smoothly when entering the inside of the drag chain body.

[0042] It should be noted that not all steps and modules in the above-mentioned processes and system structure diagrams are necessary, and some steps or modules can be ignored according to actual needs. The execution order of each step is not fixed and can be adjusted as needed. The system structure described in the above-mentioned embodiments can be a physical structure or a logical structure, that is, some modules may be implemented by the same physical entity, or some modules may be implemented by multiple physical entities, or some components in multiple independent devices may be implemented together.

[0043] In the above embodiments, the hardware module can be implemented mechanically or electrically. The above text shows and describes the present invention in detail through the accompanying drawings and preferred embodiments, but the present invention is not limited to these disclosed embodiments. Based on the above embodiments, those skilled in the art can know that the code review methods in the above different embodiments can be combined to obtain more embodiments of the present invention, and these embodiments are also within the protection scope of the present invention.

Claims

1. A drag chain structure, characterized in that: include: A plurality of mutually connected drag chain blocks (10), wherein the plurality of drag chain blocks (10) are mutually connected to form a drag chain body; A ball portion (20) is provided at the connection point of the front end of each drag chain block (10), and a concave ball portion (30) is provided at the connection point of the rear end of each drag chain block (10). The ball portion (20) on each drag chain block (10) is rotatably arranged on the concave ball portion (30) of the previous drag chain block (10), so that the drag chain body can realize a small turning radius movement and another drag chain body in a direction perpendicular to the small turning radius can realize a large radius turning.

2. A drag chain structure according to claim 1, characterized in that: Limiting steps (60) are provided on both sides of the ball portion (20) and the concave ball portion (30) so that the drag chain body bends in the first direction to achieve the small turning radius movement.

3. A drag chain structure according to claim 2, characterized in that: The front end face and the rear end face of each drag chain block (10) are arranged as an inclined surface (40) and a vertical surface (50), so that the drag chain body can bend in the second direction (B) to achieve a large radius turn, and the inclination direction of the inclined surface (40) is the same as the second direction (B).

4. A drag chain structure according to claim 3, characterized in that: A circular hole (90) is provided on each of the ball portion (20) and the concave ball portion (30), and the ball portion (20) on each of the drag chain blocks (10) is rotatably arranged on the concave ball portion (30) of the previous drag chain block (10) via a pin shaft or a bolt (80) passing through the corresponding circular hole (90).

5. A drag chain structure according to claim 4, characterized in that: The circular hole (90) on each of the ball parts (20) is in an arc shape with larger sides and smaller middle.

6. A drag chain structure according to claim 5, characterized in that: Slide grooves are provided on the three side surfaces of the drag chain block (10) away from the ball portion (20) and the concave ball portion (30), and a slide shaft is provided in the slide groove, and a pulley (70) is sleeved on the slide shaft.

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