A stress-distributing type of drag chain hull structure

Abstract

The utility model is suitable for the field of mechanical tow chain, provide a kind of stress uniform distribution type tow chain keel structure, including the body of at least two connected constitution tow chain keel structure, two bodies adjacent can relatively rotate, and abut fixed in preset position;The one end of body is fixedly connected with plug-in part along its length direction, and the transverse hinged hole of plug-in part is provided, and the other end is fixedly connected with two hinged parts;Width matched with hinged slot of plug-in part is equipped between two hinged parts;Two hinged parts are all equipped with the insertion hole matched with hinged hole position;Expanding plug is detachably connected in insertion hole, and elastic clamping part is equipped in the front end of expanding plug;The first angle increase of the upper side of one end of plug-in part away from body is provided with;The first abutment inclined surface matched with the first angle increase position is equipped at the one end of body away from hinged part.

Description

Technical Field

[0001] This utility model applies to the field of mechanical cable chains and provides a stress-distributed cable chain keel structure. Background Technology

[0002] Flexible cleanroom cable chains, as key components of modern industrial automation equipment, play a vital role in protecting and managing cables in clean environments. Specifically, cleanroom cable chains (also known as dust-free cable chains) are cable protection and management systems specifically designed for clean environments (such as semiconductor, biopharmaceutical, precision electronics, and aseptic food processing workshops). Their main function is to safely protect internal cables (including electrical wires, air pipes, liquid pipes, and optical fibers), while minimizing the generation or release of particulate contaminants, preventing static electricity buildup, and inhibiting microbial adhesion, thereby ensuring the air cleanliness level of the cleanroom.

[0003] In mechanical equipment, cable chains are crucial devices for protecting cables, pipes, and other pipelines, especially in applications requiring frequent movement or bending. Cable chains provide essential protection for these components. However, most existing traditional cable chain structures use simple snap-fit ​​connections, and the limited load-bearing capacity of nylon materials results in poor connection stability during use. Furthermore, their inherent impact resistance is insufficient, making them prone to deformation and unable to meet the demands of ultra-long strokes. Utility Model Content

[0004] In view of the above-mentioned defects, the purpose of this utility model is to provide a stress-distributed cable chain keel structure, which aims to solve the problems mentioned in the background art. The device includes a cable chain keel structure consisting of at least two bodies connected in sequence. The two adjacent bodies can rotate relative to each other and are fixed in abutment at a preset position.

[0005] One end of the main body along its length is fixedly connected to a plug-in part, and a hinge hole is provided laterally on the plug-in part. The other end is fixedly connected to two hinge parts. A hinge groove with a width matching the plug-in part is provided between the two hinge parts. Each of the two hinge parts is provided with a plug hole with a position matching the hinge hole.

[0006] An expansion plug is detachably connected inside the socket, and the front end of the expansion plug is provided with an elastic snap-fit ​​part; a first increasing angle is provided above the end of the plug part away from the body; a first abutting slope that matches the position of the first increasing angle is provided along the length direction of the hinge part to the end of the body away from the hinge part.

[0007] Furthermore, the first angle is an acute-angle structure that protrudes above the end of the plug portion away from the main body; the acute-angle structure smoothly transitions to the end face of the plug portion away from the main body and the top surface of the main body.

[0008] Furthermore, when the two bodies are hinged together and rotated to 15-30°, the first abutting inclined surface is arranged parallel to the end face of the hinge portion.

[0009] Furthermore, a second increasing angle is provided below the end of the insertion part away from the body; a second abutting slope matching the position of the second increasing angle is provided at the end of the body away from the hinge part extending along the length direction of the hinge part.

[0010] Furthermore, when two adjacent bodies are hinged together and rotated downwards to 15-30°, the second abutting inclined surface is arranged parallel to the end face of the hinge portion.

[0011] Furthermore, one of the hinged parts is provided with a mounting hole corresponding to the insertion hole, and a plug sleeve is embedded inside the mounting hole. The plug sleeve is provided with a retaining ring corresponding to the front end of the expansion plug.

[0012] Furthermore, a third angle is provided at the corresponding position of the top of the body and the first abutting slope.

[0013] Furthermore, the upper top surface and lower bottom surface of the insertion part are respectively provided with a first beveled surface and a second beveled surface.

[0014] This invention achieves uniform stress distribution and enhances resistance to compression and tension by using the first, second, and third increasing angles in conjunction with the corresponding first and second abutting inclined surfaces; prevents the insertion part from protruding from the body surface through the first and second beveled surfaces, thus avoiding pressure on the pipeline; reduces weight and improves lightweight design through gap design; and enhances durability through the plug sleeve, ensuring long-term stable operation of the cable chain keel structure under frequent bending and extending its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure;

[0016] Figure 2 This is a side view of the main structure;

[0017] Figure 3 This is a schematic diagram of the cable chain keel structure;

[0018] In the diagram:

[0019] 1-Body; 101-First abutting bevel; 102-Second abutting bevel; 2-Insertion part; 201-First chamfered part; 202-Second chamfered part; 21-Hinge hole; 3-Hinge part; 30-Hinge groove; 301-First increasing angle; 302-Second increasing angle; 303-Third increasing angle; 31-Mounting hole; 32-Insertion hole; 4-Expansion plug; 5-Plug sleeve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] It should be noted that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0024] See Figure 1-3 The purpose of this utility model is to provide a stress-distributed cable chain keel structure, including at least two bodies 1 connected in sequence. The two adjacent bodies 1 can rotate relative to each other and are fixed in abutment at a preset position. The cable chain keel structure of this application is correspondingly installed inside the cable chain on the outside to ensure that the cable chain can rotate relative to each other and to provide support force when the cable chain is bent to a specified angle to prevent excessive bending and damage to the internal pipelines.

[0025] One end of the main body 1 is fixedly connected to a connector 2 along its length, and the connector 2 has a hinge hole 21 arranged laterally. The other end is fixedly connected to two hinge parts 3, and a hinge groove 30 with a width matching that of the connector 2 is provided between the two hinge parts 3. Each of the two hinge parts 3 has a connector hole 32 whose position matches that of the hinge hole 21. Specifically, when two adjacent main bodies 1 are hinged end-to-end, the hinge hole 21 on the first main body 1 can match the connector hole 32 on the other main body 1. An expansion bolt 4 is detachably connected inside the connector hole 32.

[0026] The front end of the expansion bolt 4 is an elastic and expandable snap-fit ​​part. When it is inserted into the insertion hole 32 on the first hinge part 3, the insertion part 2 and the insertion hole 32 on the second hinge part 3 in sequence, the front end snap-fit ​​part of the expansion bolt 4 can snap into the insertion hole 32 on the second hinge part 3, thereby completing the mutual hinged connection of the two bodies 1.

[0027] A first increasing angle 301 is provided above the end of the insertion part 2 away from the main body 1; specifically, an acute-angle structure is provided above the end of the insertion part 2 away from the main body 1; the acute-angle structure is smoothly provided on the end face of the insertion part 2 away from the main body 1 and the top surface of the main body 1; a first abutting slope 101 is provided along the length direction of the hinge part 3 to the end of the main body 1 away from the hinge part 3, matching the position of the first increasing angle 301. Specifically, when the two bodies are hinged together and rotated to 15-30°, the first abutting slope 101 is parallel to the end face of the hinge part 3.

[0028] When several bodies 1 are connected in series and hinged together, a cable chain keel structure can be formed, which is installed inside the cable chain on the outside. When the cable chain bends, the cable chain keel structure bends synchronously. When the bending reaches the limit state, the first abutting inclined surface 101 and the first increasing angle 301 of the two adjacent bodies 1 abut against each other. The first increasing angle 301 increases the bearing volume between the two bodies 1, increases the bearing area and stress dispersion volume, so that it can better provide compression and tensile strength when subjected to greater bending force.

[0029] Preferably, a second increasing angle 302 (corresponding to the position on the opposite surface of the first increasing angle 301) is provided below the end of the insertion part 2 away from the body 1; that is, an acute-angled structure is provided on the lower part of the insertion part 2 away from the body 1; the acute-angled structure is smoothly provided on the end face of the insertion part 2 away from the body 1 and the bottom surface of the body 1; a second abutting slope 102 matching the position of the second increasing angle 302 is provided along the length direction of the hinge part 3 to the end of the body 1 away from the hinge part 3. Specifically, when the two bodies are hinged together and rotated downwards to 15-30°, the second abutting slope 102 is parallel to the end face of the hinge part 3. The matching arrangement of the second increasing angle 302 and the second abutting slope 102 enables the drag chain keel structure to provide good stress dispersion even when bending in the reverse direction.

[0030] Preferably, one of the hinge parts 3 is provided with a mounting hole 31 corresponding to the insertion hole 32. A plug sleeve 5 is embedded inside the mounting hole 31. The plug sleeve 5 is provided with a retaining ring corresponding to the front end of the expansion plug 4. The inner surface of the plug sleeve 5 is made of a smooth and wear-resistant material. The plug sleeve 5 and the expansion plug 4 cooperate to reduce the wear of the front end of the expansion plug 4 caused by frequent bending, thereby avoiding the damage and disassembly of the body 1.

[0031] Preferably, a third increasing angle 303 is provided at the corresponding position of the top of the body 1 and the first abutting inclined surface 101. The third increasing angle 303 is set in the same way as the first increasing angle 101 and the second increasing angle 102; when the cable chain keel structure bends, the first increasing angle 301 and the third increasing angle 303 of the two bodies 1 match and abut. This provides better stress distribution in the direction where the cable chain keel structure bends more.

[0032] Preferably, the upper top surface and lower bottom surface of the insertion part 2 are respectively provided with a first chamfered surface 201 and a second chamfered surface 202. The first chamfered surface 201 and the second chamfered surface 202 can ensure that the insertion part 2 will not protrude from the upper and lower surfaces of the body 1 when the cable chain keel structure is bent, thereby preventing pressure on the pipeline.

[0033] Preferably, between two adjacent connected main bodies 1, a gap is provided between the front end of the insertion part 2 of the rear main body 1 and the front end of the hinge groove 30, and the length of the gap is equal to 1-1.5 times the length of the insertion part 2. This allows the hinge part 3 of the main body 1 to provide a certain elasticity, while reducing the weight of the entire cable chain keel structure, making the cable chain keel structure lighter.

[0034] In practical use, at least two bodies 1 are hinged together by a plug 2 and a hinge 3. The plug 2 is inserted into the hinge groove 30 of the adjacent body 1 and fixed by an expansion bolt 4 passing through the plug hole 32 on the first hinge 3, the hinge hole 21 on the plug 2, and the plug hole 32 on the second hinge 3 in sequence. The snap-fit ​​part at the front end of the expansion bolt 4 snaps into the plug hole 32 to ensure a stable connection. When the drag chain keel structure is installed inside the drag chain and bends with the drag chain, the adjacent bodies 1 can rotate relative to each other. When bending upward to the limit angle, the first increasing angle 301 abuts against the first abutting slope 101. When bending downward, the second increasing angle 302 abuts against the second abutting slope 102. The stress is dispersed by increasing the abutting volume. At the same time, the plug sleeve 5 reduces the wear of the expansion bolt 4, and the gap design provides elastic deformation, so that the structure can adapt to bending without damaging the internal pipeline.

[0035] Therefore, the device can achieve uniform stress distribution and enhance the resistance to compression and tension by cooperating with the corresponding first abutting slope 101 and second abutting slope 102 through the first increasing angle 301, the second increasing angle 302 and the third increasing angle 303; prevent the plug part 2 from protruding from the surface of the body 1 through the first chamfered surface 201 and the second chamfered surface 202, and avoid compressing the pipeline; reduce weight and improve lightweight by gap design; and improve durability by plug sleeve 5, ensuring that the drag chain keel structure works stably for a long time under frequent bending and extending its service life.

[0036] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on this utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims of this utility model.

Claims

1. A stress equalizing type of chain track keel structure, characterized by, The drag chain keel structure consists of at least two bodies (1) connected in sequence. The two adjacent bodies (1) can rotate relative to each other and are fixed in a pre-set position. The main body (1) is fixedly connected to a plug-in part (2) at one end along its length direction. A hinge hole (21) is provided on the plug-in part (2) in the transverse direction. Two hinge parts (3) are fixedly connected to the other end. A hinge groove (30) with a width matching the plug-in part (2) is provided between the two hinge parts (3). Each of the two hinge parts (3) is provided with a plug hole (32) with a position matching the hinge hole (21). The insertion hole (32) is detachably connected to an expansion plug (4), and the front end of the expansion plug (4) is provided with an elastic snap-fit ​​part; a first increasing angle (301) is provided above the end of the insertion part (2) away from the body (1); a first abutting slope (101) matching the position of the first increasing angle (301) is provided at the end of the body (1) away from the hinge part (3) along the length direction of the hinge part (3).

2. The stress-distributed cable chain keel structure according to claim 1, characterized in that, The first angle (301) is an acute angle structure that protrudes above the end of the plug part (2) away from the body (1); the acute angle structure smoothly transitions to the end face of the plug part (2) away from the body (1) and the top face of the body (1).

3. The stress equalizing type of chain drag hull structure according to claim 2, wherein, When the two bodies (1) are hinged together and rotated to 15-30°, the first abutting inclined surface (101) is parallel to the end face of the hinge part (3).

4. The stress equalizing type of chain drag hull structure according to claim 2, wherein, A second jacking angle (302) is provided below the end of the plug-in portion (2) away from the body (1); a second abutting slope (102) matching the position of the second jacking angle (302) is provided at the end of the body (1) away from the hinge portion (3) along the length direction of the hinge portion (3).

5. The stress equalizing type of chain drag hull structure according to claim 4, wherein, When two adjacent bodies (1) are hinged together and rotated downwards to 15-30°, the second abutting inclined surface (102) is set parallel to the end face of the hinge part (3).

6. The stress-distributed cable chain keel structure according to claim 1, characterized in that, One of the hinge parts (3) is provided with a mounting hole (31) corresponding to the insertion hole (32). A plug sleeve (5) is embedded inside the mounting hole (31). A retaining ring corresponding to the front end of the expansion plug (4) is provided inside the plug sleeve (5).

7. The stress equalizing towline keel structure of claim 1, wherein, The top of the main body (1) is provided with a third angle (303) at the corresponding position of the first abutting slope (101).

8. The stress equalizing towline keel structure of claim 1, wherein, The upper top surface and lower bottom surface of the plug part (2) are respectively provided with a first beveled surface (201) and a second beveled surface (202).

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