CN214578615U

CN214578615U - Drag chain joint block

Info

Publication number: CN214578615U
Application number: CN202120820268.5U
Authority: CN
Inventors: 苏鑫; 莫华坤
Original assignee: Dongguan Yuelong Plastic Metal Technology Co ltd; Ward Drag Chain Cable Protection System Foshan Co ltd
Current assignee: Dongguan Yuelong Plastic Metal Technology Co ltd; Ward Drag Chain Cable Protection System Foshan Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-02
Anticipated expiration: 2031-04-21

Abstract

The utility model relates to a drag chain joint block, which comprises a bending block and an extending block, wherein the bending block comprises a curved edge, a clamping block and a protective strip; the curved edge comprises a propping part and a compressing part; the compression part is connected with two adjacent butting parts; a clamping groove is arranged between every two adjacent clamping blocks; the extension block comprises a stretching edge, an insertion block and a rib; a threading cavity is arranged between the stretching edge and the curved edge; the stretching edge comprises a supporting part, an extending part and a reinforcing part; the extending part is connected with two adjacent supporting parts, and the reinforcing part is arranged at the connecting position of the supporting part and the extending part; the inserting blocks are correspondingly clamped in the clamping grooves, a slot is formed between every two adjacent inserting blocks, and the clamping blocks are clamped in the slots. Above-mentioned tow chain joint block through setting up bent limit and tensile limit to correspond and set up compression part and extension portion, guarantee to the unidirectional bending of cable, provide the holding power to the cable through setting up the supporting part, prevent that the cable from drooping to rock, and then guarantee dustless environment's user demand.

Description

Drag chain joint block

Technical Field

The utility model relates to a mechanical tow chain technical field especially relates to a tow chain joint block.

Background

A drag chain, also known as a wire and cable protection drag chain, is a device for binding a cable or a wire or an air pressure pipe and an oil pressure pipe so as to facilitate the rotation and the movement of the drag chain. The drag chain is applied to reciprocating motion occasions, and can play a role in traction and protection of built-in cables, oil pipes, air pipes, water pipes and the like. Drag chains have been widely used in the industries of numerical control machines, electronic devices, glass machines, injection molding machine manipulators, handling machines, plastic machines, hoisting equipment, woodworking machines, automotive industry, industrial vehicles, metal working machines, machine tools, casting machines, port equipment, flat panel display equipment, semiconductor equipment, and the like.

The existing drag chain is generally applied to the production and processing environment in which a cable is in contact with the external air, and for the dust-free processing environment, the drag chain is required to be airtight to the cable inside, the cable is required to be bent in the reciprocating movement, meanwhile, certain bearing capacity is required to be guaranteed, the cable cannot droop and shake at will, and the existing drag chain cannot meet the use requirement of the dust-free processing environment.

SUMMERY OF THE UTILITY MODEL

In view of this, there is a need for a tow chain joint block for use in a dust free environment.

A tow chain joint block comprising:

the bending block comprises a curved edge, a clamping block connected with the curved edge and a protection strip connected with the clamping block; the curved edge comprises at least two abutting parts and a compression part connected with the abutting parts; the compression part is connected with two adjacent butting parts; the fixture blocks are sequentially arranged at intervals along the curved edge, and a clamping groove is formed between every two adjacent fixture blocks; and

the extending block is clamped with the bending block; the stretching block comprises a stretching edge, an inserting block connected with the stretching edge and a rib connected with the inserting block; the stretching edge and the curved edge are mutually covered, and a threading cavity is arranged between the stretching edge and the curved edge; the stretching edge comprises at least two supporting parts, an extending part connected with the supporting parts, and reinforcing parts respectively connected with the supporting parts and the extending part; the extension part is connected with two adjacent support parts, and the reinforcing part is arranged at the connecting position of the support part and the extension part; the inserted blocks are arranged along the stretching edges at intervals in sequence, the inserted blocks are correspondingly clamped in the clamping grooves, a slot is formed between every two adjacent inserted blocks, and the clamping blocks are clamped in the slots.

The drag chain joint block ensures that the cable is arranged in the threading cavity in a penetrating way by arranging the curved edge and the stretching edge, and correspondingly arranges the compression part and the extension part to ensure unidirectional bending of the cable; the rapid assembly operation is realized by arranging the clamping blocks clamped in the slots and the inserting blocks clamped in the clamping grooves, a relatively closed threading cavity is ensured to be formed, and the use requirement of a dust-free environment is further ensured; the connection reliability of the supporting part and the extending part is improved by arranging the reinforcing part, and the service life is prolonged.

In one embodiment, the thickness of the abutting portion is larger than that of the compression portion.

In one embodiment, the compression part is provided with a U-shaped structure in cross section.

In one embodiment, the side positions of two adjacent supporting parts are mutually abutted.

In one embodiment, the cross section of the extending part is in an arc-shaped structure.

In one embodiment, the cross section of the reinforcing part is in an L-shaped structure, one side of the reinforcing part is connected with the supporting part, and the other side of the reinforcing part is connected with the extending part.

In one embodiment, the clamping blocks are oppositely arranged on two sides of the curved edge, the clamping blocks are arranged in a hexagonal structure, and the clamping blocks extend from the curved edge to the direction of the extension block.

In one embodiment, the insertion blocks are oppositely arranged on two sides of the stretching edge, the insertion blocks are arranged in a hexagonal structure, and the insertion blocks extend from the stretching edge to the bending block.

In one embodiment, the clamping groove is in a trapezoidal structure, and the insertion block is correspondingly embedded in the clamping groove; the slot is in a trapezoidal structure, the clamping blocks are correspondingly embedded in the slot, and the clamping blocks and the inserting blocks are sequentially and alternately meshed.

In one embodiment, the protection strip is arranged in a rectangular long strip structure, the protection strip is sequentially connected with the clamping blocks, and the protection strip is arranged on one side of the clamping blocks, which is far away from the curved edge; the rib is rectangular long strip-shaped structure, the rib connects gradually each the inserted block, the rib sets up the inserted block is kept away from one side on tensile limit.

Drawings

Fig. 1 is an exploded view of a tow chain joint block according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of the tow chain joint block of fig. 1.

The reference numbers in the drawings have the meanings given below:

100. a tow chain joint block;

10. bending the block; 11. bending edges; 12. a clamping block; 13. a protective strip; 15. a holding portion; 16. a compression section; 17. a card slot;

20. a stretching block; 21. stretching the edges; 22. inserting a block; 23. a rib; 24. a threading cavity; 25. a support portion; 26. an extension portion; 27. a reinforcing portion; 28. and (4) a slot.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 and 2, a drag chain joint block 100 according to an embodiment of the present invention includes a bending block 10 and an extending block 20; the tow chain joint block 100 is arranged on the outer side of the cable to carry out airtight dust-free protection on the cable which is bent back and forth.

The bending block 10 is approximately arranged in an arc-shaped long strip structure, the bending block 10 is correspondingly arranged on the inner side of the cable in the reciprocating bending direction, and the bending block 10 is used for ensuring the bending operation of the cable; the bending block 10 comprises a curved edge 11, a clamping block 12 connected with the curved edge 11 and a protection strip 13 connected with the clamping block 12. The curved edge 11 is correspondingly arranged in an arc-shaped structure, and the curved edge 11 is arranged at one side of the cable; further, the curved edge 11 includes at least two supporting portions 15 and a compression portion 16 connected to the supporting portions 15; the abutting parts 15 are arranged in an arc-shaped structure, the abutting parts 15 are sequentially arranged at intervals along the arrangement direction of the curved edge 11, and the thickness of the abutting parts 15 is greater than that of the compression part 16 so as to ensure that the curved edge 11 is convenient to bend; the compression part 16 is connected with the two adjacent abutting parts 15, the section of the compression part 16 is in a U-shaped structure, and the compression part 16 is used for ensuring that the two adjacent abutting parts 15 can be close to each other, so that the bending operation is realized.

Furthermore, the fixture blocks 12 are sequentially arranged along the curved edge 11 at intervals, the fixture blocks 12 are oppositely arranged on two sides of the curved edge 11, the fixture blocks 12 are arranged in a hexagonal structure, the fixture blocks 12 extend from the curved edge 11 to the direction of the extension block 20, and the fixture blocks 12 are used for being clamped and fixed with the extension block 20; a clamping groove 17 is arranged between two adjacent clamping blocks 12, the clamping groove 17 is in a trapezoidal structure, and the clamping groove 17 is used for being connected with an extension block 20. Furthermore, this protection strip 13 is the rectangular strip structure setting, and protection strip 13 sets up in the both sides of bent limit 11 relatively, and this protection strip 13 connects gradually each fixture block 12, and protection strip 13 sets up in fixture block 12 and keeps away from one side of bent limit 11, and protection strip 13 is used for improving the joint strength between each fixture block 12, and then guarantees the leakproofness that bending block 10 and extension piece 20 are connected.

The extension block 20 is clamped with the bending block 10, the extension block 20 is approximately in an arc-shaped long strip structure, the extension block 20 is correspondingly arranged on the outer side of the cable in the reciprocating bending direction, and the extension block 20 is used for ensuring the stretching operation on the outer side of the cable in the bending direction and providing a supporting force for the flat state of the cable; the extension block 20 includes a drawing edge 21, an insert block 22 connected to the drawing edge 21, and a rib 23 connected to the insert block 22. The stretching edge 21 is correspondingly arranged in an arc-shaped structure, the stretching edge 21 is arranged on one side of the cable, which is opposite to the curved edge 11, the stretching edge 21 and the curved edge 11 are mutually covered, a threading cavity 24 is arranged between the stretching edge 21 and the curved edge 11, and the threading cavity 24 is arranged in a through hole-shaped structure so as to ensure that the cable is arranged between the curved edge 11 and the stretching edge 21 in a penetrating way; further, the stretching side 21 includes at least two supporting portions 25, an extending portion 26 connected to the supporting portions 25, and a reinforcing portion 27 respectively connecting the supporting portions 25 and the extending portion 26; the supporting parts 25 are arranged in an arc-shaped structure, the supporting parts 25 are sequentially arranged at intervals along the arrangement direction of the stretching edge 21, and the side edge positions of two adjacent supporting parts 25 are mutually abutted so as to provide supporting force for the cable in a straight state and prevent the cable from drooping and swinging; the cross section of the extending part 26 is arranged in an arc-shaped structure, the extending part 26 is connected with the two adjacent supporting parts 25, and the extending part 26 is used for ensuring that the two adjacent supporting parts 25 can be away from each other, so that the extending operation of the outer side of the bending direction is realized, and the bending of the cable is ensured; the reinforcing part 27 is arranged at the connecting position of the supporting part 25 and the extending part 26, the cross section of the reinforcing part 27 is arranged in an L-shaped structure, one side of the reinforcing part 27 is connected with the supporting part 25, the other side of the reinforcing part 27 is connected with the extending part 26, the reinforcing part 27 is used for improving the connecting strength of the supporting part 25 and the extending part 26, the reliability of bending operation is further ensured, and the reliability of providing supporting force for the cable is further improved by improving the hardness of the two sides of the supporting part 25.

Furthermore, the inserting blocks 22 are sequentially arranged at intervals along the stretching edge 21, the inserting blocks 22 are oppositely arranged on two sides of the stretching edge 21, the inserting blocks 22 are arranged in a hexagonal structure, the inserting blocks 22 extend from the stretching edge 21 to the bending block 10, the inserting blocks 22 are correspondingly embedded in the clamping grooves 17, and the inserting blocks 22 are clamped in the clamping grooves 17; a slot 28 is arranged between two adjacent plugs 22, the slot 28 is arranged in a ladder-shaped structure, the fixture block 12 is clamped in the slot 28, and the fixture block 12 and the plugs 22 are sequentially and alternately engaged. Furthermore, the rib 23 is arranged in a rectangular long strip structure, the rib 23 is oppositely arranged on two sides of the stretching edge 21, the rib 23 is sequentially connected with the inserting blocks 22, the rib 23 is arranged on one side of the inserting block 22 far away from the stretching edge 21, and the rib 23 is used for improving the connection strength between the inserting blocks 22, so that the tightness of the connection between the bending block 10 and the stretching block 20 is ensured.

The drag chain joint block 100 ensures that the cable is inserted into the threading cavity 24 by arranging the curved edge 11 and the stretching edge 21, and correspondingly arranges the compression part 16 and the extension part 26 to ensure unidirectional bending of the cable, and provides a supporting force for the cable by arranging the supporting part 25 to prevent the cable from drooping and shaking, thereby ensuring the use requirement of a dust-free environment; the clamping block 12 clamped in the slot 28 and the inserting block 22 clamped in the clamping groove 17 are arranged, so that the rapid assembly operation is realized, the relatively closed threading cavity 24 is ensured to be formed, and the use requirement of a dust-free environment is further ensured; the reinforcing part 27 is provided to improve the connection reliability between the supporting part 25 and the extending part 26, and prolong the service life.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A tow chain joint block, comprising:

2. The tow chain joint block according to claim 1, wherein the thickness of the holding portion is greater than the thickness of the compression portion.

3. The tow chain joint block according to claim 2, wherein the compression section is provided in a U-shaped configuration in cross-section.

4. The tow chain joint block according to claim 1, wherein side positions of adjacent two of the support portions abut each other.

5. The tow chain joint block according to claim 4, wherein the cross section of the extension is arranged in an arc-like configuration.

6. The tow chain joint block according to claim 5, wherein the cross section of the reinforcement part is provided in an L-shaped structure, one side of the reinforcement part is connected with the support part, and the other side of the reinforcement part is connected with the extension part.

7. The tow chain joint block according to claim 1, wherein the clamping blocks are oppositely arranged at two sides of the curved edge, the clamping blocks are arranged in a hexagonal structure, and the clamping blocks extend from the curved edge to the direction of the extension block.

8. The tow chain joint block according to claim 7, wherein the insertion blocks are oppositely arranged on two sides of the stretching edge, the insertion blocks are arranged in a hexagonal structure, and the insertion blocks extend from the stretching edge to the bending block.

9. The tow chain joint block according to claim 8, wherein the slot is arranged in a trapezoidal structure, and the insertion block is correspondingly embedded in the slot; the slot is in a trapezoidal structure, the clamping blocks are correspondingly embedded in the slot, and the clamping blocks and the inserting blocks are sequentially and alternately meshed.

10. The tow chain joint block according to claim 1, wherein the guard bar is arranged in a rectangular strip structure, the guard bar is connected with each clamping block in sequence, and the guard bar is arranged on one side of each clamping block away from the curved edge; the rib is rectangular long strip-shaped structure, the rib connects gradually each the inserted block, the rib sets up the inserted block is kept away from one side on tensile limit.