Mining high-strength round-link chain

Abstract

The utility model discloses a mining high-strength round-link chain, and particularly relates to the field of round-link chains, the mining high-strength round-link chain comprises a first circular ring, the bottom of the first circular ring is connected with a connecting ring, the bottom of the connecting ring is connected with a second circular ring, and reinforcing pads are welded and fixed at arc-shaped positions of two ends of the first circular ring, the connecting ring and the second circular ring. According to the utility model, the clamping blocks are matched with the clamping grooves, so that the opening of the connecting ring is conveniently opened and closed, the connecting ring is conveniently connected with the first circular ring or the second circular ring, and meanwhile, the connecting strength of the connecting ring with the first circular ring and the second circular ring is improved through the reinforcing pads, so that the overall strength is improved; and through cooperation of a supporting plate, a supporting hook and a clamping hook, a hexagonal screw head can be rotated to control an extrusion plate to extrude the connecting ring at the same time, the attaching strength of a clamping block and a clamping groove can be improved, and therefore the closing strength of the opening is improved while the strength of the connecting ring is not damaged, and the using effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of round-link chains, and more specifically, to a high-strength mining round-link chain. Background Art

[0002] A chain is generally a strip-shaped metal chain formed by pairwise connection between metal chain links or rings, and is generally used for object traction and binding. When mining or transporting ores, a chain is required. A chain link is an important part of the chain. A chain link is a ring-shaped object formed by bending a straight metal bar and then welding and sealing the two ends of the straight metal bar. The chain links are sleeved with each other to form a usable chain.

[0003] Most of the existing high-strength mining round-link chains on the market are mostly connected and fixed by welding, which is extremely inconvenient during use.

[0004] Chinese Patent with Patent Application No. CN202120446516.4 discloses a high-strength mining round-link chain, including a first circular ring. An annular hook is connected inside the first circular ring. One side of the annular hook is rotatably connected with a locking pin through a bearing. A limiting rod is inserted into the locking pin, and a first bolt is rotationally connected to the outer wall of the limiting rod through a thread. By setting the locking pin, the fixing block, the telescopic rod and the second spring, the high-strength mining round-link chain can be more convenient to operate during installation and use, thus greatly saving the installation time of the employees when installing the high-strength mining round-link chain.

[0005] However, it can be seen from the accompanying drawings of its specification that by passing a screw rod through the middle of the connecting ring for extrusion to realize the closing and fixing of the opening, passing the screw rod through the middle of the connecting ring will reduce the self-strength of the connecting ring, thus affecting the overall strength, and it is inconvenient to increase the closing strength of the opening of the connecting ring without damaging the self-strength of the connecting ring. Therefore, a high-strength mining round-link chain is proposed. Summary of the Utility Model

[0006] In order to overcome the above-mentioned defects of the prior art, the present utility model provides a high-strength mining round-link chain to solve the problems raised in the above background art.

[0007] To achieve the above object, the present utility model provides the following technical solution: A high-strength mining round-link chain, including a first ring, a connecting ring is connected to the bottom of the first ring, a second ring is connected to the bottom of the connecting ring, reinforcing pads are welded and fixed at both ends of the arc-shaped parts of the first ring, the connecting ring and the second ring, and clamping grooves are respectively formed at both ends of the opening of the connecting ring and a clamping block is fixedly connected.

[0008] A support plate is provided in the middle of the connecting ring. One end of the support plate is fixedly connected with a hook, and the other end is fixedly connected with a support hook. A fixing block is fixedly connected to the middle of one side of the support plate. A threaded rod is inserted into the middle of the fixing block. One end of the threaded rod close to the hook is rotatably connected with a pressing plate, and the other end is fixedly connected with a hexagonal screw head.

[0009] Preferably, the reinforcing pad is arranged in an arc structure. Both ends of the opening of the connecting ring are arranged as inclined plane walls. The clamping block and the clamping groove are adapted to each other. The cross-sectional shape of the clamping block is arranged in a semi-circular structure. The clamping block is arranged in the middle of the clamping groove.

[0010] Preferably, the inner cavity diameter of the hook is the same as that of the support hook, and the inner cavity diameter of the hook is the same as the diameter of the first ring.

[0011] Preferably, the threaded rod is threadedly connected with the fixing block. The cross-sectional shape of the pressing plate is arranged in an arc structure. The pressing plate is arranged on the side of the hook close to the support hook.

[0012] Preferably, a limiting slider is fixedly connected to one side of the pressing plate. A limiting sliding groove is opened at a position corresponding to the limiting slider on one side of the support plate. The limiting sliding groove and the limiting slider are adapted to each other. The cross-sectional shape of the limiting slider is arranged in a "T" shape. The limiting slider is arranged in the middle of the limiting sliding groove.

[0013] Preferably, the straight rods on both sides of the first ring are respectively located in the middle of the hook and the support hook. The hook and the pressing plate are respectively located on the opposite sides of the clamping block and the clamping groove.

[0014] The technical effects and advantages of the present utility model:

[0015] 1. Firstly, through the cooperation of the clamping block and the clamping groove, the present utility model facilitates the opening and closing of the opening of the connecting ring, facilitates the connection of the connecting ring with the first ring or the second ring. At the same time, the connection strength between the connecting ring and the first ring and the second ring is improved through the reinforcing pad, thereby increasing the overall strength. And through the cooperation of the arranged support plate, support hook and hook, the pressing plate can be controlled to press the connecting ring by rotating the hexagonal screw head, which can improve the fitting strength of the clamping block and the clamping groove, so as to increase the closing strength of the opening while not damaging the strength of the connecting ring itself, and improve the use effect;

[0016] 2. The present utility model also improves the stability of the movement of the pressing plate when the pressing plate and the hook press both ends of the clamping block and the clamping groove through the cooperation of the arranged limiting slider and the limiting sliding groove, avoiding the dislocation between the pressing plate and the hook and affecting the pressing effect. And the pressing plate is conveniently rotated and driven through the hexagonal screw head, and the function of thread self-locking is realized through the threaded connection between the threaded rod and the fixing block, improving the pressing effect;

[0017] In summary, through the mutual influence of the above-mentioned multiple functions, it is possible to increase the closing strength of the opening while not damaging the strength of the connecting ring itself, and at the same time increase the overall strength of the connecting ring, improve the strength of the circular chain, and improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0019] Figure 2 It is a schematic diagram of the split structure of the first circular ring and the reinforcing pad of the present utility model.

[0020] Figure 3 It is a schematic diagram of the split structure of the support plate and the connecting ring of the present utility model.

[0021] Figure 4 It is a schematic diagram of the split structure of the connecting ring of the present utility model.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the support plate of the present utility model.

[0023] Figure 6 It is a schematic diagram of the split structure of the support plate and the threaded rod of the present utility model.

[0024] The reference numerals are: 1, the first circular ring; 2, the connecting ring; 3, the second circular ring; 4, the reinforcing pad; 5, the clamping block; 6, the clamping groove; 7, the support plate; 8, the hook; 9, the support hook; 10, the fixing block; 11, the threaded rod; 12, the hexagonal head; 13, the pressing plate; 14, the limiting sliding groove; 15, the limiting sliding block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] As shown in the attached Figures 1-5A high-strength mining round link chain shown in the figure includes a first round link 1. A connecting link 2 is connected to the bottom of the first round link 1. A second round link 3 is connected to the bottom of the connecting link 2. Reinforcing pads 4 are welded and fixed at the arc-shaped parts at both ends of the first round link 1, the connecting link 2, and the second round link 3. The connection strength between the first round link 1 and the connecting link 2, and the second round link 3 is improved through the reinforcing pads 4. Claw slots 6 are respectively formed at both ends of the opening of the connecting link 2, and a clamping block 5 is fixedly connected thereto. The connecting link 2 is conveniently connected to the first round link 1 and the second round link 3 through the clamping block 5 and the claw slots 6, which is convenient for connection and use. At the same time, through the adaptation of the clamping block 5 and the claw slots 6, the closing strength of the connecting link 2 can be improved, avoiding separation and falling off;

[0027] A support plate 7 is arranged in the middle of the connecting link 2. A clamping hook 8 is fixedly connected to one end of the support plate 7, and a support hook 9 is fixedly connected to the other end. A fixing block 10 is fixedly connected to the middle of one side of the support plate 7. A threaded rod 11 is inserted through the middle of the fixing block 10. One end of the threaded rod 11 close to the clamping hook 8 is rotatably connected to a pressing plate 13, and the other end is fixedly connected to a hexagonal screw head 12. Through the cooperation of the clamping hook 8 and the support hook 9, the support plate 7 is conveniently installed in the middle of the connecting link 2. By pressing the pressing plate 13 to one side of the clamping hook 8, the two straight rods on both sides of the connecting link 2 can be supported by the pressing plate 13 and the support hook 9, improving the stability of the connecting link 2. Rotating the hexagonal screw head 12 controls the threaded rod 11 to drive the pressing plate 13 to move, facilitating the control of the pressing plate 13 to press on one side of the clamping hook 8.

[0028] As shown in Figure 1 、 2 、4, the reinforcing pad 4 is arranged in an arc-shaped structure. Both ends of the opening of the connecting link 2 are arranged as inclined plane walls. The clamping block 5 and the claw slots 6 are adapted. The cross-sectional shape of the clamping block 5 is arranged as a semi-circular structure. The clamping block 5 is arranged in the middle of the claw slots 6. The connection strength between the first round link 1 and the connecting link 2 and the second round link 3 is improved through the support plate 7, and the strength of the first round link 1 is also improved. Through the cooperation of the clamping block 5 and the claw slots 6, the connecting link 2 is conveniently separated from and connected to the first round link 1 and the second round link 3. By inserting the clamping block 5 into the inside of the claw slots 6, the closing strength of the connecting link 2 can be improved, enhancing the use effect.

[0029] As shown in Figure 3 、 5 、6, the inner cavity diameter of the clamping hook 8 is the same as that of the support hook 9. The inner cavity diameter of the clamping hook 8 is the same as the diameter of the first round link 1. The clamping hook 8 and the support hook 9 are respectively clamped at the two straight rod parts of the connecting link 2, which is convenient for connection and use.

[0030] As shown in Figure 3 、 5, as shown in FIGS. 6, the threaded rod 11 is threadedly connected to the fixed block 10. The cross-sectional shape of the pressing plate 13 is set as an arc structure. The pressing plate 13 is arranged on the side of the hook 8 close to the support hook 9. By removing the hexagonal screw head 12 to control the threaded rod 11 to drive the pressing plate 13 to press against the side of the hook 8, the inner side of the connecting ring 2 can be pressed, which is convenient for pressing both sides of the clamping block 5 and the clamping groove 6 of the hook 8, improving the connection strength between the clamping block 5 and the clamping groove 6, avoiding falling off and separation, and improving the use effect.

[0031] As shown in the attached Figure 5 , 6 shown, a limiting slider 15 is fixedly connected to one side of the pressing plate 13. A limiting sliding groove 14 is opened at a position on one side of the support plate 7 corresponding to the limiting slider 15. The limiting sliding groove 14 and the limiting slider 15 are adapted to each other. The cross-sectional shape of the limiting slider 15 is set as a "T" shape. The limiting slider 15 is arranged in the middle of the limiting sliding groove 14. By sliding the limiting slider 15 inside the limiting sliding groove 14, the stability of the movement of the pressing plate 13 can be improved, thereby improving the pressing strength of the pressing plate 13 on the connecting ring 2 and improving the fixing effect.

[0032] As shown in the attached Figure 1 , 3 , 4 shown, the straight rods on both sides of the first ring 1 are respectively located in the middle of the hook 8 and the support hook 9. The hook 8 and the pressing plate 13 are respectively located on the opposite sides of the clamping block 5 and the clamping groove 6, which is convenient for fixedly supporting the support plate 7 and improving the use effect.

[0033] Working principle of the present utility model: When the high-strength ring chain is used in mines, the connection strength of multiple first rings 1, connecting rings 2, and second rings 3 is improved through the reinforcing pad 4. And by hanging the support hook 9 on the straight rod on the side of the connecting ring 2 far from the opening, and hanging the hook 8 on the side of the clamping block 5 of the connecting ring 2 far from the clamping groove 6, then rotating the hexagonal screw head 12 to sequentially control the pressing plate 13 to press against the side of the clamping groove 6 far from the clamping block 5, the connection strength between the clamping block 5 and the clamping groove 6 can be improved, thereby improving the connection strength of the connecting ring 2.

[0034] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-strength round-link chain for mining, comprising a first round link (1), characterized in that: The bottom of the first circular ring (1) is connected to a connecting ring (2), the bottom of the connecting ring (2) is connected to a second circular ring (3), the arcs at both ends of the first circular ring (1), the connecting ring (2) and the second circular ring (3) are welded and fixed with reinforcing pads (4), and the openings of the connecting ring (2) are respectively provided with card slots (6) and fixedly connected with card blocks (5); A support plate (7) is provided in the middle of the connecting ring (2); one end of the support plate (7) is fixedly connected to a hook (8), and the other end is fixedly connected to a support hook (9); a fixing block (10) is fixedly connected to the middle of one side of the support plate (7); a threaded rod (11) is inserted in the middle of the fixing block (10); one end of the threaded rod (11) close to the hook (8) is rotatably connected to an extrusion plate (13), and the other end is fixedly connected to a hexagonal screw head (12).

2. A high-strength round link chain for mining according to claim 1, characterized in that: The reinforcing pad (4) is configured as an arc-shaped structure, both ends of the opening of the connecting ring (2) are configured as inclined wall bodies, the clamping block (5) and the clamping slot (6) are adapted to each other, the cross-sectional shape of the clamping block (5) is configured as a semicircular structure, and the clamping block (5) is arranged in the middle of the clamping slot (6).

3. A high-strength round-link chain for mining according to claim 1, characterized in that: The inner diameter of the hook (8) is the same as the inner diameter of the support hook (9), and the inner diameter of the hook (8) is the same as the diameter of the first circular ring (1).

4. A high-strength round link chain for mining according to claim 1, characterized in that: The threaded rod (11) is threadedly connected to the fixing block (10); the cross-sectional shape of the extrusion plate (13) is set to an arc structure; and the extrusion plate (13) is arranged on a side of the hook (8) close to the support hook (9).

5. The high-strength round link chain for mining according to claim 1, characterized in that: One side of the extrusion plate (13) is fixedly connected to a limiting slide block (15); one side of the support plate (7) is provided with a limiting slide groove (14) at a position corresponding to the limiting slide block (15); the limiting slide groove (14) and the limiting slide block (15) are adapted to each other; the cross-sectional shape of the limiting slide block (15) is set to be "T"-shaped; and the limiting slide block (15) is set in the middle of the limiting slide groove (14).

6. A high-strength round-link chain for mining according to claim 1, characterized in that: The straight rods on both sides of the first circular ring (1) are respectively located in the middle of the hook (8) and the support hook (9), and the hook (8) and the extrusion plate (13) are respectively located on the opposite sides of the clamping block (5) and the clamping groove (6).

Images