High-strength drag chain

Abstract

The utility model provides a high-strength drag chain which comprises chain plate assemblies which are symmetrically arranged, the upper end faces and the lower end faces of the chain plate assemblies are respectively connected through supporting plates, each chain plate assembly is composed of a plurality of mutually-spliced center chain plates, the two ends of each center chain plate are respectively provided with a first connecting part and a second connecting part, and the adjacent first connecting parts are arranged in the second connecting parts. The upper end of the first connecting part is a fan-shaped surface, the lower end of the first connecting part is an inclined tangent plane, the end part of the second connecting part is correspondingly provided with a fan-shaped guide surface and an inclined stop surface, and the first connecting part can rotate in the second connecting part along the guide surface; and when the central chain plate is kept horizontal, the inclined tangent plane is propped against the stop surface. According to the high-strength drag chain provided by the utility model, the second connecting part and the first connecting part are matched through the stop surface and the stop block, so that the drag chain assembly is locked when the whole drag chain assembly is kept horizontal, the central drag chain cannot be bent downwards at the moment, and the oblique tangent plane enables the bearing capacity of the second connecting part and the first connecting part to be higher than that of an existing drag chain; and the drag chain assembly can be still kept horizontally overhead after being spliced to a large length.

Description

Technical Field

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

[0002] The drag chain, also known as the wire and cable protection drag chain, is a device that restrains cables or wires or air pressure pipes and oil pressure pipes to facilitate their rotation and movement. The drag chain is used in occasions of reciprocating motion, and can play a role in traction and protection of built-in cables, oil pipes, air pipes, water pipes, etc. The patent with application number 202120819585.5 discloses a keel drag chain, comprising at least two sequentially connected connecting blocks, characterized in that the connecting block comprises a plug-in portion, a block portion connected to the plug-in portion, a seat portion connected to the block portion, and a hinged portion connecting the seat portion; a cavity is provided in the seat portion, and the plug-in portions of two adjacent connecting blocks are correspondingly inserted in the cavity of the seat portion, and the plug-in portion is hinged to the hinged portion; the block portions are relatively arranged on both sides of the plug-in portion, and when the plug-in portion abuts against one side of the inner wall of the cavity, the block portion on the same side abuts against the outer edge of the seat portion. The above-mentioned keel drag chain, by providing abutment blocks on both sides of the plug-in part, enables the plug-in part to abut against the inner wall of the socket part to provide support force while the abutment blocks abut against the outer edge of the socket part to provide support force synchronously, ensuring that the plug-in part and the abutment blocks provide support force at the same time, thereby improving the bearing capacity between the joint blocks and improving the reliability of the keel drag chain. The drag chain needs to be equipped with abutment blocks and a socket part to provide support force, resulting in a more complicated assembly structure, and the overall support force is still limited, and it cannot remain horizontal after being assembled for a longer length, that is, the overhead distance is short. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The problem to be solved by the utility model is to provide a high-strength drag chain to overcome the defect of the prior art that the drag chain has insufficient supporting force and causes a short overhead distance.

[0005] (II) Technical solution

[0006] To solve the technical problem, the utility model provides a high-strength drag chain, including a chain plate assembly formed by splicing, the chain plate assembly is symmetrically arranged and the upper end face and the lower end face are respectively connected by a supporting plate, the chain plate assembly is composed of a plurality of central chain plates spliced ​​with each other, the two ends of the central chain plate are respectively provided with a first connecting part and a second connecting part, the adjacent first connecting part is placed in the second connecting part, the upper end of the first connecting part is a fan-shaped surface, the end of the second connecting part is correspondingly provided with a fan-shaped guide surface, the first connecting part can rotate in the second connecting part along the guide surface; the second connecting part is also provided with a first stop surface, the back of the first connecting part is provided with a stop block corresponding to the first stop surface, the stop block abuts against the first stop surface, the back of the first connecting part is also provided with a second stop surface, and one side of the second connecting part is provided with There is a stop rib, which abuts against the second stop surface; the surface of the second connecting part is provided with a guide column and an installation groove, and the back of the first connecting part is provided with a connecting pipe, the connecting pipe is inserted into the installation groove and is mounted on the guide column, and the guide column is arranged concentrically with the guide surface and the fan-shaped surface; the lower end of the first connecting part is an oblique section, and the second connecting part is provided with an inclined third stop surface, and when the center chain plate is kept horizontal, the oblique section abuts against the third stop surface, and the back of the first connecting part is also provided with a fourth stop surface, and the lower end surface of the second connecting part abuts against the fourth stop surface, and the guide surface and the fan-shaped surface enable the adjacent center chain plates to bend, and the first stop surface to the fourth stop surface all play a role in improving the supporting strength, so that the center chain plate can increase the overhead length.

[0007] In some embodiments, the two ends of the chain plate assembly are respectively a first end chain plate and a second end chain plate, one end of the first end chain plate is provided with a second connecting portion, which is connected to the first connecting portion of the center chain plate on one side, and one end of the second end chain plate is provided with a first connecting portion, which is connected to the second connecting portion of the center chain plate on one side, and the first end chain plate and the second end chain plate form a plane at both ends of the chain plate assembly.

[0008] In some embodiments, the upper and lower ends of the first end chain plate, the second end chain plate and the center chain plate are symmetrically provided with plug blocks, both ends of the support plate are provided with slots, the slots are T-shaped slots, and guide parts are symmetrically provided at both ends of the plug blocks, and the plug blocks are inserted into the slots.

[0009] In some embodiments, a through hole is provided on the slot, a protrusion is provided on the surface of the plug block, the protrusion is placed in the through hole, a spacer is provided between the support plates, U-shaped grooves are symmetrically provided at the upper and lower ends of the spacer, and the support plate is placed in the U-shaped groove.

[0010] In some embodiments, locking blocks are symmetrically provided on both sides of the U-shaped groove, a plurality of teeth are arranged at equal intervals on the support plate, and the locking blocks are inserted between the teeth.

[0011] (III) Beneficial effects

[0012] The utility model provides a high-strength drag chain, in which the second connecting part cooperates with the first connecting part through a stop surface and a stop block, so that the drag chain assembly is locked when it remains horizontal as a whole. At this time, the central drag chain cannot bend downward, and the oblique section makes the bearing capacity of the second connecting part and the first connecting part higher than that of the existing drag chain, so that the drag chain assembly can be spliced ​​to a larger length and still remain horizontally suspended. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a three-dimensional diagram of a high-strength drag chain of the utility model;

[0015] Figure 2 This is a three-dimensional diagram of the connection between the first end chain plate and the support plate of a high-strength drag chain of the utility model;

[0016] Figure 3 This is a front perspective view of a central chain plate of a high-strength drag chain of the utility model;

[0017] Figure 4 This is a front perspective view of a second end chain plate of a high-strength drag chain of the utility model;

[0018] Figure 5 This is a back perspective view of a first end chain plate of a high-strength drag chain of the utility model;

[0019] Figure 6 This is a three-dimensional back view of a central chain plate of a high-strength drag chain of the utility model;

[0020] Figure 7 This is a three-dimensional diagram of a support plate of a high-strength drag chain of the utility model;

[0021] Figure 8 It is a three-dimensional diagram of a spacer of a high-strength drag chain of the utility model.

[0022] The names of the components corresponding to the various figure marks in the figure are: 1. support plate; 2. center chain plate; 3. first connecting part; 4. second connecting part; 5. guide surface; 6. third stop surface; 7. fan-shaped surface; 8. oblique section; 9. guide column; 10. mounting groove; 11. connecting pipe; 12. first end chain plate; 13. second end chain plate; 14. plug block; 15. slot; 16. guide part; 17. through hole; 18. protrusion; 19. spacer; 20. U-shaped groove; 21. locking block; 22. tooth part; 23. first stop surface; 24. stop block; 25. second stop surface; 26. fourth stop surface; 27. stop rib. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0024] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0025] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspect described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0026] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0027] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the examples can be practiced without these specific details.

[0028] See also Figures 1 to 8 The utility model provides a high-strength drag chain, including a chain plate assembly formed by splicing, the chain plate assembly is symmetrically arranged and the upper end surface and the lower end surface are respectively connected by a supporting plate 1, the chain plate assembly is composed of a plurality of mutually spliced ​​central chain plates 2, the two ends of the central chain plate 2 are respectively provided with a first connecting portion 3 and a second connecting portion 4, the adjacent first connecting portion 3 is placed in the second connecting portion 4, the upper end of the first connecting portion 3 is a fan-shaped surface 7, and the end of the second connecting portion 4 is correspondingly provided with a fan-shaped guide surface 5, the first connecting portion 3 can rotate in the second connecting portion 4 along the guide surface 5; the second connecting portion 4 is also provided with a first stop surface 23, the back of the first connecting portion 3 is provided with a stop block 24 corresponding to the first stop surface 23, the stop block 24 abuts against the first stop surface 23, the back of the first connecting portion 3 is also provided with a second stop surface 25, and a stop rib 27 is provided on one side of the second connecting portion 4, and the stop rib 27 abuts against the second stop surface 25; the surface of the second connecting portion 4 is provided with a guide column 9 and an installation The mounting groove 10, the back of the first connecting part 3 is provided with a connecting pipe 11, the connecting pipe 11 is inserted into the mounting groove 10 and is mounted on the guide column 9, the guide column 9 is arranged concentrically with the guide surface 5 and the fan-shaped surface 7, so the central drag chain on one side can be rotated with the guide column 9 as the axis, and the guide surface 5 plays a guiding role at this time; the lower end of the first connecting part 3 is an oblique section 8, and the second connecting part 4 is provided with an inclined third stop surface 6. When the center chain plate 2 remains horizontal, the oblique section 8 abuts against the third stop surface 6, and the back of the first connecting part 3 is also provided with a fourth stop surface 26, and the lower end surface of the second connecting part 4 abuts against the fourth stop surface 26. The first stop surface 23 to the fourth stop surface 26 all play a limiting role in the mutual movement between the first connecting part 3 and the second connecting part 4, and then provide a supporting force so that the center chain plates 2 can remain horizontal, and the middle part of the drag chain will not sag due to insufficient bearing capacity, thereby achieving the effect of a larger length overhead.

[0029] In some embodiments, Figure 2 to Figure 8As shown, the two ends of the chain plate assembly are respectively a first end chain plate 12 and a second end chain plate 13, wherein one end of the first end chain plate 12 is provided with a second connecting portion 4, which is connected to the first connecting portion 3 of the center chain plate 2 on one side, and one end of the second end chain plate 13 is provided with a first connecting portion 3, which is connected to the second connecting portion 4 of the center chain plate 2 on one side. The first end chain plate 12 and the second end chain plate 13 make the two ends of the drag chain assembly as a whole can be vertical planes, and the upper and lower ends of the first end chain plate 12, the second end chain plate 13 and the center chain plate 2 are symmetrically provided with plug blocks 14, and both ends of the support plate 1 are provided with slots 15, and the slots 15 are T-shaped slots. Guide portions 16 are symmetrically provided at both ends of the plug block 14, and the plug block 14 is inserted into the slot 15. When installing, the plug block 14 is inserted into the guide portion 16 In the slot 15, a through hole 17 is provided on the slot 15, and a protrusion 18 is provided on the surface of the plug block 14, and the protrusion 18 is placed in the through hole 17. The plug block 14 is slid along the slot 15 to align the protrusion 18 with the through hole 17, and then pressed to insert the protrusion 18 into the through hole 17 to complete the assembly; a spacer 19 is provided between the support plates 1, and U-shaped grooves 20 are symmetrically provided at the upper and lower ends of the spacer 19. The support plate 1 is placed in the U-shaped groove 20. The spacer is used to separate the cables between the drag chains. Locking blocks 21 are symmetrically provided on both sides of the U-shaped groove 20. A plurality of teeth 22 are arranged at equal intervals on the support plate 1, and the locking block 21 is inserted between the teeth 22, wherein the locking block 21 or the teeth 22 can be made of flexible material, which can play a limiting role and at the same time, the spacer 19 can be moved on the teeth 22 to adjust its position.

[0030] The utility model provides a high-strength drag chain, in which the central drag chain is rotatably connected through a guide column and an installation groove, so that the two ends of the drag chain can be bent relatively to each other, and the second connection part cooperates with the first connection part through a stop surface and a stop block, so that the drag chain assembly is locked when it is kept horizontal as a whole. At this time, the central drag chain cannot bend downward, and the oblique section makes the bearing capacity of the second connection part and the first connection part higher than that of the existing drag chain, so that the drag chain assembly can be spliced ​​to a larger length and still remain horizontally suspended.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high-strength drag chain, comprising a chain plate assembly formed by splicing, wherein the chain plate assembly is symmetrically arranged and the upper end surface and the lower end surface are respectively connected by a support plate (1), characterized in that: The chain plate assembly is composed of a plurality of mutually spliced ​​central chain plates (2), the two ends of the central chain plate (2) are respectively provided with a first connecting portion (3) and a second connecting portion (4), the adjacent first connecting portion (3) is placed in the second connecting portion (4), the upper end of the first connecting portion (3) is a fan-shaped surface (7), the end of the second connecting portion (4) is correspondingly provided with a fan-shaped guide surface (5), and the first connecting portion (3) can rotate in the second connecting portion (4) along the guide surface (5); the second connecting portion (4) is also provided with a first stop surface (23), the back of the first connecting portion (3) is provided with a stop block (24) corresponding to the first stop surface (23), the stop block (24) abuts against the first stop surface (23), the back of the first connecting portion (3) is also provided with a second stop surface (25), and a stop rib (27) is provided on one side of the second connecting portion (4), and the stop rib (27) abuts against the second stop surface (25).

2. The high-strength drag chain according to claim 1, characterized in that: The surface of the second connecting part (4) is provided with a guide column (9) and a mounting groove (10); the back of the first connecting part (3) is provided with a connecting pipe (11), the connecting pipe (11) is inserted into the mounting groove (10) and sleeved on the guide column (9), the guide column (9) is arranged cocentrically with the guide surface (5) and the fan-shaped surface (7); the lower end of the first connecting part (3) is an oblique section (8), the second connecting part (4) is provided with an inclined third stop surface (6), when the center chain plate (2) is kept horizontal, the oblique section (8) abuts against the third stop surface (6), the back of the first connecting part (3) is also provided with a fourth stop surface (26), the lower end surface of the second connecting part (4) abuts against the fourth stop surface (26).

3. The high-strength drag chain according to claim 1, characterized in that: The two ends of the chain plate assembly are respectively a first end chain plate (12) and a second end chain plate (13); one end of the first end chain plate (12) is provided with a second connecting portion (4) connected to the first connecting portion (3) of the center chain plate (2) on one side; one end of the second end chain plate (13) is provided with a first connecting portion (3) connected to the second connecting portion (4) of the center chain plate (2) on one side.

4. The high-strength drag chain according to claim 3, characterized in that: Insert blocks (14) are symmetrically provided at the upper and lower ends of the first end chain plate (12), the second end chain plate (13) and the center chain plate (2); slots (15) are provided at both ends of the support plate (1); the slots (15) are T-shaped slots; guide portions (16) are symmetrically provided at both ends of the insert blocks (14); and the insert blocks (14) are inserted into the slots (15).

5. The high-strength drag chain according to claim 4, characterized in that: The slot (15) is provided with a through hole (17), the surface of the insert block (14) is provided with a protrusion (18), and the protrusion (18) is placed in the through hole (17).

6. The high-strength drag chain according to claim 1, characterized in that: A spacer (19) is provided between the support plates (1), and U-shaped grooves (20) are symmetrically provided at the upper and lower ends of the spacer (19), and the support plate (1) is placed in the U-shaped groove (20).

7. The high-strength drag chain according to claim 6, characterized in that: Locking blocks (21) are symmetrically arranged on both sides of the U-shaped groove (20); a plurality of teeth (22) are arranged at equal intervals on the support plate (1); and the locking blocks (21) are inserted between the teeth (22).

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