Split type chain link of drag chain

Abstract

According to the technical scheme, the split type chain link of the drag chain is characterized in that the split type chain link comprises an upper cover plate, a lower cover plate and two chain plates, the upper cover plate, the lower cover plate and the two chain plates are independently arranged, the upper cover plate is connected with one sides of the chain plates in a buckled mode, and the lower cover plate is connected with the other sides of the chain plates in an inserted mode; the end of the upper cover plate is provided with a buckling groove capable of being buckled with the chain plate, protrusions are arranged on the two inner side walls, close to an opening, of the buckling groove in a protruding mode, and a round rod capable of being buckled with the buckling groove is integrally arranged on the chain plate. The end part of the lower cover plate is convexly provided with an inserting block for inserting the chain plate, the inner side surface of the chain plate is provided with an inserting groove for inserting the inserting block, two opposite outer side walls of the inserting block are convexly provided with wedge-shaped blocks, the inner wall of the inserting groove is provided with a groove for buckling the wedge-shaped blocks, and the depth size of the inserting groove is smaller than the thickness size of the chain plate; dismounting grooves communicated with the inserting grooves are formed in the outer side faces of the chain plates and correspond to the grooves. And the use flexibility and the application range of the drag chain are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drag chains, and more specifically, to a split chain link of a drag chain. Background Art

[0002] Drag chains are suitable for use in reciprocating motion situations. They can pull and protect built-in cables, oil pipes, air pipes, water pipes, etc., and make the overall appearance of the machine more beautiful. Drag chains are mostly composed of several chain links, which can be connected together in a relatively rotatable manner. The unit chain link consists of two chain plates and upper and lower cover plates. The two chain plates and the upper and lower cover plates form a channel. Cables, oil pipes, air pipes, water pipes, etc. are placed through the channel of the drag chain.

[0003] There are two main structures of existing chain links: one is that the two chain plates are buckled with the upper and lower cover plates. The lower cover plate of this structure is buckled between the two chain plates, and the load-bearing capacity is limited. When the cables, oil pipes, water pipes and other objects carried are too heavy, the lower cover plate is easy to fall off; the other is that the upper cover plate is buckled on the two chain plates, and the lower cover plate is integrally connected between the two chain plates. The chain link of this structure has a large load-bearing capacity, but the size is fixed and the flexibility of use is not high. Each width of the drag chain corresponds to a mold, and the cost of the mold is relatively high. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a split link of a drag chain to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a split chain link of a drag chain, comprising an upper cover plate, a lower cover plate and two chain plates, wherein the upper cover plate, the lower cover plate and the two chain plates are independently arranged, the two ends of the upper cover plate in the length direction are respectively buckled and arranged with one side of the two chain plates, and the two ends of the lower cover plate in the length direction are respectively plugged and arranged with the other side of the two chain plates, and the upper cover plate, the lower cover plate and the two chain plates are enclosed and connected to form a wire-passing channel;

[0006] The end of the upper cover plate is provided with a buckle groove that can be buckled with the chain plate, the buckle groove is arranged in a U-shaped structure, and both inner side walls of the buckle groove near the opening are convexly provided with protrusions, and the chain plate is integrally provided with a round rod that can be buckled with the buckle groove;

[0007] A plug-in block capable of plugging into the chain plate is protruding from the end of the lower cover plate, a slot for plugging into the plug-in block is provided on the inner side surface of the chain plate, wedge blocks are protruding from the two opposite outer side walls of the plug-in block, a groove for buckling the wedge block is provided on the inner wall of the slot, the depth of the slot is smaller than the thickness of the chain plate, a disassembly groove connected to the slot is provided on the outer side surface of the chain plate, and the disassembly groove is provided corresponding to the groove.

[0008] The utility model is further configured as follows: the plug-in block is integrally arranged with the lower cover plate, and the plug-in block is located at the end of the lower cover plate and extends along the length direction of the lower cover plate.

[0009] The utility model is further configured as follows: a deformation groove is provided in the middle of the plug-in block, and the plug-in block can generate a certain contraction deformation through the deformation groove during the process of the plug-in block being separated from the slot.

[0010] The utility model is further configured as follows: the distances between the two protrusions on the inner wall of the buckle groove and the bottom of the buckle groove are different, and the height of the protrusion located on the inner side of the chain plate from the bottom of the buckle groove is greater than the height of the other protrusion from the bottom of the buckle groove.

[0011] The utility model is further configured as follows: the chain plate includes a front plate portion and a rear plate portion which are integrally arranged, the front plate portion is parallel to the rear plate portion and is staggered in the thickness direction, the spacing dimension between the two front plate portions between the two chain plates is smaller than the spacing dimension between the two rear plate portions, a hinge shaft is convexly provided on the outer side surface of the front plate portion, the hinge shaft is integrally connected to the chain plate, and the two hinge shafts are coaxially arranged, and a hinge hole for rotatable connection of the hinge shaft is opened on the rear plate portion.

[0012] The utility model is further configured as follows: at least two groups of clamping protrusions and clamping grooves capable of limiting positions are arranged between the front plate portion and the rear plate portion.

[0013] In summary, the utility model has the following beneficial effects: a chain link in the present application scheme is composed of an upper cover plate, a lower cover plate and two chain plates, the upper cover plate can be buckled on the upper side of the two chain plates, and the lower cover plate can be plugged on the lower side of the two chain plates, so that the upper cover plate, the lower cover plate and the two chain plates can form a wire-passing channel in a closed connection state, wherein the buckled connection mode of the upper cover plate and the chain plate can facilitate the removal of the upper cover plate for disassembly and assembly of the pipeline, and the plug-in block at the end of the lower cover plate is plugged on the inner side wall of the lower side of the chain plate, which effectively improves the connection firmness between the lower cover plate and the chain plate, thereby improving The load-bearing capacity is improved, and the two ends of the lower cover are inserted between the lower sides of the two chain plates, and the upper cover is buckled between the upper sides of the two chain plates, so that the upper cover can limit the two chain plates, and the buckling of the wedge block and the groove further enhances the connection firmness between the lower cover and the chain plate, that is, the load-bearing capacity of the lower cover is further improved; at the same time, the four components of a chain link are independently arranged, that is, the two chain plates can realize the flexible adjustment of the chain link specifications by replacing the upper cover and the lower cover of different specifications and sizes, which greatly improves the flexibility of use and the scope of application of the drag chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the split chain link;

[0015] Figure 2Schematic diagram of the three-dimensional structure of the chain plate;

[0016] Figure 3 It is a schematic diagram of the three-dimensional structure on the other side of the chain plate;

[0017] Figure 4 Schematic diagram of the three-dimensional structure of the upper cover;

[0018] Figure 5 is a schematic diagram of the three-dimensional structure of the lower cover;

[0019] Figure 6 It is a cross-sectional view of the lower cover plate and the chain plate when they are connected.

[0020] Figure numerals: 1, upper cover; 11, buckle groove; 12, protrusion; 2, lower cover; 21, plug-in block; 22, wedge block; 23, deformation groove; 3, chain plate; 31, round rod; 32, slot; 33, groove; 34, disassembly groove; 35, front plate; 351, hinge shaft; 36, rear plate; 361, hinge hole; 37, snap-in protrusion; 38, snap-in groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention, wherein the same components are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0022] Reference Figure 1-6 As shown, a split chain link of a drag chain includes an upper cover plate 1, a lower cover plate 2 and two chain plates 3. The upper cover plate 1, the lower cover plate 2 and the two chain plates 3 are independently arranged, and the two ends of the upper cover plate 1 in the length direction are respectively buckled and arranged with one side of the two chain plates 3, and the two ends of the lower cover plate 2 in the length direction are respectively plugged and arranged with the other side of the two chain plates 3. The upper cover plate 1, the lower cover plate 2 and the two chain plates 3 are surrounded and connected to form a wire passing channel; wherein the wire passing channel is for pipelines to pass through, and the pipelines are conveniently placed in the drag chain through the detachable upper cover plate 1.

[0023] A buckle groove 11 capable of buckling with the chain plate 3 is provided at the end of the upper cover plate 1. The buckle groove 11 is arranged in a U-shaped structure, and protrusions 12 are convexly provided on the two inner side walls of the buckle groove 11 near the opening. A round rod 31 capable of buckling with the buckle groove 11 is integrally provided on the chain plate 3; the buckle connection between the upper cover plate 1 and the chain plate 3 is convenient, and the other end of the upper cover plate 1 can be rotated with the other chain plate 3 after one end of the upper cover plate 1 is separated from the chain plate 3, so that the upper cover plate 1 remains in an open state, thereby facilitating the placement of the pipeline into the drag chain.

[0024] The end of the lower cover 2 is provided with a plug-in block 21 that can be plugged into the chain plate 3, and the inner side surface of the chain plate 3 is provided with a slot 32 for the plug-in block 21 to be plugged into. The two opposite outer side walls of the plug-in block 21 are provided with a wedge block 22, and the inner wall of the slot 32 is provided with a groove 33 for the wedge block 22 to buckle, and the depth of the slot 32 is less than the thickness of the chain plate 3. The outer side surface of the chain plate 3 is provided with a disassembly groove 34 that is connected to the slot 32, and the disassembly groove 34 is provided corresponding to the groove 33. The slot 32 is not provided through the chain plate 3, so that the plug-in block 21 inserted into the slot 32 can be effectively prevented from being exposed, which is conducive to improving the stability of the connection between the lower cover 2 and the chain plate 3, and a disassembly tool can be inserted from the disassembly groove 34 to facilitate the slipping of the wedge block 22 from the groove 33, which can facilitate the disassembly and assembly of the lower cover 2 and the chain plate 3.

[0025] A chain link in the present application solution is composed of an upper cover plate 1, a lower cover plate 2 and two chain plates 3. The upper cover plate 1 can be buckled on the upper side of the two chain plates 3, and the lower cover plate 2 can be plugged on the lower side of the two chain plates 3, so that the upper cover plate 1, the lower cover plate 2 and the two chain plates 3 can form a wire-passing channel in a closed connection state, wherein the buckled connection mode of the upper cover plate 1 and the chain plates 3 can facilitate the removal of the upper cover plate 1 for disassembly and assembly of the pipeline, and the plug-in block 21 at the end of the lower cover plate 2 is plugged on the inner side wall of the lower side of the chain plate 3, which effectively improves the connection firmness between the lower cover plate 2 and the chain plate 3, thereby increasing the load-bearing capacity, and The two ends of the lower cover plate 2 are inserted between the lower sides of the two chain plates 3, and the upper cover plate 1 is buckled between the upper sides of the two chain plates 3, so that the upper cover plate 1 can limit the two chain plates 3, and the buckling of the wedge block 22 and the groove 33 further enhances the connection firmness between the lower cover plate 2 and the chain plate 3, that is, the bearing capacity of the lower cover plate 2 is further improved; at the same time, the four components of a chain link are arranged independently of each other, that is, the two chain plates 3 can realize the flexible adjustment of the chain link specifications by replacing the upper cover plate 1 and the lower cover plate 2 of different specifications and sizes, which greatly improves the flexibility of use and the scope of application of the drag chain.

[0026] The plug-in block 21 is integrally arranged with the lower cover plate 2, and the plug-in block 21 is located at the end of the lower cover plate 2 and extends along the length direction of the lower cover plate 2. The connection strength between the plug-in block 21 and the lower cover plate 2 affects the load-bearing capacity of the lower cover plate 2, so the plug-in block 21 is integrally arranged with the lower cover plate 2, which can facilitate the injection molding of the lower cover plate 2 and the plug-in cooperation between the lower cover plate 2 and the chain plate 3, and can also effectively improve the load-bearing capacity of the lower cover plate 2.

[0027] A deformation groove 23 is provided in the middle of the plug-in block 21, and the plug-in block 21 can produce a certain contraction deformation through the deformation groove 23 during the process of the plug-in block 21 being separated from the slot 32. The provision of the deformation groove 23 facilitates the plug-in block 21 to be inserted into the slot 32, and also facilitates the plug-in block 21 to produce a contraction deformation and be separated from the slot 32 during the disassembly process.

[0028] In addition, since the drag chain will select various specifications of chain links according to the use position during actual use, such as a small pipeline can choose a small width chain link, and a large pipeline can choose a large width chain link. Therefore, in actual use, the chain link of the appropriate specification will be directly selected according to the pipeline quantity at that location, that is, the possibility of subsequent changes in the chain link specifications is small. In order to further improve the connection strength between the lower cover plate 2 and the chain plate 3, a convex block located in the slot 32 can be added to the chain plate 3, and the convex block is corresponding to the deformation groove 23. Refer to the appendix of the manual. Figure 6 As shown, when the plug-in block 21 is inserted into the slot 32 , the protrusion is also inserted into the deformation groove 23 , so that the lower cover plate 2 and the chain plate 3 can be connected more firmly.

[0029] The distances between the two protrusions 12 on the inner wall of the buckle groove 11 and the bottom of the buckle groove 11 are different, and the height of the protrusion 12 located on the inner side of the chain plate 3 from the bottom of the buckle groove 11 is greater than the height of the other protrusion 12 from the bottom of the buckle groove 11. This is beneficial to improve the degree of buckling stability between the upper cover plate 1 and the chain plate 3, and it is also convenient to buckle one end of the upper cover plate 1 from the round rod 31 with tools or directly by hand when disengaging.

[0030] The chain plate 3 includes an integrally arranged front plate portion 35 and a rear plate portion 36. The front plate portion 35 is parallel to the rear plate portion 36 and is staggered in the thickness direction. The spacing between the two front plate portions 35 between the two chain plates 3 is smaller than the spacing between the two rear plate portions 36. A hinge shaft 351 is convexly arranged on the outer side of the front plate portion 35. The hinge shaft 351 is integrally connected to the chain plate 3, and the two hinge shafts 351 are coaxially arranged. A hinge hole 361 for the hinge shaft 351 to be rotatably connected is provided on the rear plate portion 36. When two chain links are connected, the two front plate portions 35 of one chain link are located between the two rear plate portions 36 of the other chain link. The arrangement of the hinge shaft 351 and the hinge hole 361 makes it unnecessary to connect the two chain link bodies with additional parts, which greatly improves the efficiency of disassembly and assembly of the drag chain.

[0031] At least two groups of position-limiting clamping protrusions 37 and clamping grooves 38 are provided between the front plate portion 35 and the rear plate portion 36. The clamping protrusions 37 and the clamping grooves 38 can be used to limit the rotation angle between the two chain link bodies, which is a well-known technology and adopts a common design.

[0032] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A split chain link of a drag chain, comprising an upper cover plate (1), a lower cover plate (2) and two chain plates (3), characterized in that: The upper cover plate (1), the lower cover plate (2) and the two chain plates (3) are independently arranged, the two ends of the upper cover plate (1) in the length direction are respectively buckled and arranged with one side of the two chain plates (3), and the two ends of the lower cover plate (2) in the length direction are respectively plugged and arranged with the other side of the two chain plates (3), and the upper cover plate (1), the lower cover plate (2) and the two chain plates (3) are in a closed and connected state to form a wire passage; The end of the upper cover plate (1) is provided with a buckle groove (11) capable of buckling with the chain plate (3); the buckle groove (11) is arranged in a U-shaped structure, and protrusions (12) are convexly provided on both inner side walls of the buckle groove (11) near the opening; and a round rod (31) capable of buckling with the buckle groove (11) is integrally provided on the chain plate (3); The end of the lower cover plate (2) is provided with a plug-in block (21) capable of being plugged into the chain plate (3); the inner side surface of the chain plate (3) is provided with a slot (32) for the plug-in block (21) to be plugged into; wedge blocks (22) are provided on two opposite outer side walls of the plug-in block (21); the inner wall of the slot (32) is provided with a groove (33) for the wedge block (22) to be buckled; the depth dimension of the slot (32) is smaller than the thickness dimension of the chain plate (3); the outer side surface of the chain plate (3) is provided with a disassembly groove (34) which is in conduction with the slot (32); the disassembly groove (34) and the groove (33) are provided correspondingly.

2. The split link of a drag chain according to claim 1, characterized in that: The plug-in block (21) is integrally arranged with the lower cover plate (2); the plug-in block (21) is located at the end of the lower cover plate (2) and extends along the length direction of the lower cover plate (2).

3. The split link of a drag chain according to claim 1, characterized in that: A deformation groove (23) is provided in the middle of the plug-in block (21), and the plug-in block (21) can generate a contraction deformation through the deformation groove (23) during the process of the plug-in block (21) being disengaged from the slot (32).

4. The split link of a drag chain according to claim 1, characterized in that: The two protrusions (12) on the inner side wall of the buckle groove (11) have different distances from the bottom of the buckle groove (11); the height of the protrusion (12) located on the inner side of the chain plate (3) from the bottom of the buckle groove (11) is greater than the height of the other protrusion (12) from the bottom of the buckle groove (11).

5. The split link of a drag chain according to claim 1, characterized in that: The chain plate (3) comprises a front plate portion (35) and a rear plate portion (36) which are integrally arranged. The front plate portion (35) is parallel to the rear plate portion (36) and is staggered in the thickness direction. The spacing between the two front plate portions (35) between the two chain plates (3) is smaller than the spacing between the two rear plate portions (36). A hinge shaft (351) is convexly provided on the outer surface of the front plate portion (35). The hinge shaft (351) is integrally connected to the chain plate (3), and the two hinge shafts (351) are coaxially arranged. A hinge hole (361) for rotatably connecting the hinge shaft (351) is provided on the rear plate portion (36).

6. The split link of a drag chain according to claim 5, characterized in that: At least two groups of position-limiting clamping protrusions (37) and clamping grooves (38) are arranged between the front plate portion (35) and the rear plate portion (36).

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