Clamp type self-falling lifting device with lifting anti-falling design

Abstract

The utility model relates to a kind of lifting device of clamp type self-removal with lifting anti-falling design, including first bolt, two collar are sleeved in the front end of first bolt, two first connecting plates are arranged in the outside of first bolt between two collars, the outside thread of the first bolt is sleeved with first nut at the front end of the collar at the front, two second connecting plates are rotatably connected in the other end of two first connecting plates, two clamping hooks are fixedly connected in the end of two second connecting plates, the end of two second connecting plates away from two first connecting plates mutually adheres, and fourth bolt is equipped in the rear end of adhering place, fourth bolt is sequentially penetrated two second connecting plates and reaches the front end of second connecting plate at the front. In the utility model, the end of two clamping hooks is pressed by the groove under two extension blocks respectively, the contact between two clamping hooks can be effectively increased, and the risk of local indentation and slip is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a clamp-type self-detaching lifting equipment with a lifting and anti-falling design. Background Technology

[0002] Lifting tools include billet lifting clamps, plate lifting clamps, and round steel lifting clamps, which are specifically designed for lifting metal materials. Self-detaching clamps are lifting tools that achieve automatic detachment through mechanical structures and are commonly used in the rapid loading and unloading of metal materials such as steel plates and coils.

[0003] Existing clamp-type self-detaching spreaders still have some problems. Current clamp-type self-detaching spreaders rely on clamps to hold the goods, and the hinged spreaders are used to hold them in place and prevent them from slipping when the tension is lost. After the tension is lost, the ends of the clamps no longer move towards the center to hold the goods. However, in use, the staggered arrangement of the clamp ends leads to a reduction in the actual contact area with the surface of the goods, which increases the pressure per unit area and may cause local indentation or slippage. Therefore, those skilled in the art have provided a clamp-type self-detaching spreader with a lifting and anti-falling design to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a clamp-type self-detaching lifting device with a lifting and anti-falling design. In use, the grooves under the two extension blocks press against the ends of the two clamp hooks respectively, which can effectively increase the contact between the two clamp hooks and reduce the risk of local indentation and slippage.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a clamp-type self-detaching lifting device with a lifting and anti-falling design, comprising a first bolt, two collars sleeved on the front end of the first bolt, two first connecting plates arranged front and back on the outer side of the first bolt between the two collars, a first nut threaded onto the outer side of the first bolt at the front collar, a second connecting plate rotatably connected to the other end of each of the two first connecting plates, a clamp hook fixedly connected to the end of each of the two second connecting plates, the ends of the two second connecting plates away from the two first connecting plates being in contact with each other, and a fourth bolt provided at the rear end of the contact point, the fourth bolt passing through the two second connecting plates sequentially to the front end of the front second connecting plate, and a fourth nut threaded onto the end of the fourth bolt, and a limiting structure provided at the lower rear end face of the front second connecting plate and the lower front end face of the rear second connecting plate;

[0006] Taking the limiting structure at the front as an example, the limiting structure includes a base block. An extension block is fixedly connected to the upper part of the end of the base block away from the second connecting plate. Two third bolts are provided on the rear end face of the rear end hook of the base block. The two third bolts pass through the rear end face of the hook and the rear end face of the base block in sequence to the front end of the base block, and the ends of the two bolts are threaded with a third nut.

[0007] With the above technical solution, the ends of the two clamping hooks are respectively attached to the inside of the pressure grooves at the lower ends of the two extension blocks, which can effectively increase the contact between the ends of the two clamping hooks and reduce the risk of local indentation and slippage.

[0008] Furthermore, the lower end face of the extension block is provided with a pressure groove;

[0009] The above technical solution increases the stability of the hook end inside the pressure groove.

[0010] Furthermore, each of the two first connecting plates and the two second connecting plates has a second bolt at its rear end where they fit together. The two second bolts pass through the two first connecting plates and the two second connecting plates respectively and extend to the front end of the two first connecting plates and the two second connecting plates, and the ends are threaded with second nuts.

[0011] The above technical solution facilitates the connection of two second connecting plates, allowing the two second connecting plates to rotate and drive the two clamping hooks to rotate.

[0012] Furthermore, a spring-loaded structure is provided between the two first connecting plates. The spring-loaded structure includes two first springs, which are respectively disposed at the front and rear ends of the two first connecting plates. The upper and lower ends of the two first springs are respectively fixedly connected with a first hook and a second hook. The two second hooks are respectively sleeved on the outside of the first bolt between the two collars at the front and rear ends of the two first connecting plates. The two first hooks are respectively sleeved on the outer wall of the fourth bolt at the front and rear ends of the two second connecting plates.

[0013] With the above technical solution, the tension of the two first springs pulls the first bolt and the fourth bolt closer to each other. When replacing the first spring, it is necessary to remove the first nut and the fourth nut, and remove the first hook and the second hook, which facilitates replacement and improves replacement efficiency.

[0014] Furthermore, a base is fixedly connected to one end face of each of the two first connecting plates that are close to each other, and a groove is provided at the center of the one end face of each of the two bases that are close to each other, and a second spring is provided between the two grooves;

[0015] Through the above technical solution, the tension of the second spring pushes the two first connecting plates away from each other, so that the two first connecting plates and the two second connecting plates return to their initial positions. When replacement is required, the pressing device is used to bring the first bolt and the fourth bolt closer together, increasing the distance between the two bases, making it easier to remove the second spring. After installing the new second spring, the first bolt and the fourth bolt are pulled away from each other, so that the two bases are brought closer together, and the second spring is clamped inside the groove for replacement.

[0016] Furthermore, hanging rings are fixedly connected to the upper ends of the two collars;

[0017] The above technical solution facilitates the connection between the hanging ring and the crane for lifting heavy objects.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the clamp-type self-detaching lifting device with lifting and anti-falling design can effectively increase the contact between the two hooks and reduce the risk of local indentation and slippage by pressing the grooves under the two extension blocks against the ends of the two hooks.

[0020] 2. In this utility model, the arrangement of the second spring and two first springs can reduce fatigue and increase service life. When replacement is required, the first bolt and the fourth bolt are brought closer together by the pressing device, which increases the distance between the two bases, making it easier to remove the second spring. After installing the new second spring, the first bolt and the fourth bolt are pulled away from each other, so that the two bases are brought closer together. The second spring is then clamped inside the groove for replacement. When replacing the first spring, the first nut and the fourth nut need to be removed, and the first hook and the second hook need to be removed, which facilitates replacement and improves replacement efficiency. Attached Figure Description

[0021] Figure 1 This is a perspective view of a clamp-type self-detaching lifting device with a lifting and anti-falling design proposed in this utility model;

[0022] Figure 2 A three-dimensional sectional view of a clamp-type self-detaching lifting device with a lifting and anti-falling design proposed in this utility model;

[0023] Figure 3 This is a front view of a clamp-type self-detaching lifting device with a lifting and anti-falling design proposed in this utility model;

[0024] Figure 4 This is a partial three-dimensional exploded view of the spring-loaded structure of a clamp-type self-detaching lifting device with a lifting and anti-falling design proposed in this utility model.

[0025] Legend:

[0026] 1. First bolt; 2. Hanging ring; 3. First nut; 4. First connecting plate; 5. Second connecting plate; 6. Clamp hook; 7. Second bolt; 8. Second nut; 9. Spring-loaded structure; 10. Limiting structure; 11. Collar; 12. Fourth bolt; 13. Fourth nut;

[0027] 901. First spring; 902. First hook; 903. Second hook; 904. Base; 905. Second spring; 906. Groove;

[0028] 1001, base block; 1002, extension block; 1003, pressure groove; 1004, third bolt; 1005, third nut. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Reference Figure 1-4 An embodiment of this utility model provides a clamp-type self-detaching lifting device with a lifting and anti-falling design, including a first bolt 1, two collars 11 sleeved on the front end of the first bolt 1, two first connecting plates 4 arranged front and back on the outer side of the first bolt 1 between the two collars 11, a first nut 3 threadedly sleeved on the outer side of the first bolt 1 at the front end of the collar 11, a second connecting plate 5 rotatably connected to the other end of each of the two first connecting plates 4, a hook 6 fixedly connected to the end of each of the two second connecting plates 5, the ends of the two second connecting plates 5 away from the two first connecting plates 4 are close to each other, and a fourth bolt 12 is provided at the rear end of the close-up point, the fourth bolt 12 passes through the two second connecting plates 5 sequentially to the front end of the front second connecting plate 5, and a fourth nut 13 is threadedly sleeved at the end, a limiting structure 10 is provided at the lower rear end face of the front second connecting plate 5 and the lower front end face of the rear second connecting plate 5.

[0031] like Figure 1 , 2As shown in Figures 1 and 3, taking the front limiting structure 10 as an example, the limiting structure 10 includes a base block 1001. An extension block 1002 is fixedly connected to the upper part of the end of the base block 1001 away from the second connecting plate 5. Two third bolts 1004 are provided on the rear end face of the rear end hook 6 of the base block 1001. The two third bolts 1004 pass through the rear end face of the hook 6 and the rear end face of the base block 1001 in sequence and reach the front end of the base block 1001. The ends of the two hooks 6 are threaded with third nuts 1005. The ends of the two hooks 6 are respectively attached to the inside of the pressure groove 1003 at the lower end of the two extension blocks 1002, which can effectively increase the contact between the ends of the two hooks 6 and reduce the risk of local indentation and slippage.

[0032] The lower end face of the extension block 1002 is provided with a pressure groove 1003 to increase the stability of the end of the clamping hook 6 inside the pressure groove 1003.

[0033] The two first connecting plates 4 and the two second connecting plates 5 are provided with second bolts 7 at their rear ends where they fit together. The two second bolts 7 pass through the two first connecting plates 4 and the two second connecting plates 5 respectively and extend to the front ends of the two first connecting plates 4 and the two second connecting plates 5. The ends are threaded with second nuts 8 to facilitate the connection of the two second connecting plates 5, so that the two clamping hooks 6 can rotate during the rotation of the two second connecting plates 5.

[0034] like Figure 1 , 2 As shown in Figures 3 and 4, a spring-loaded structure 9 is provided between the two first connecting plates 4. The spring-loaded structure 9 includes two first springs 901, which are respectively located at the front and rear ends of the two first connecting plates 4. The upper and lower ends of the two first springs 901 are respectively fixedly connected to a first hook 902 and a second hook 903. The two second hooks 903 are respectively sleeved on the outside of the first bolt 1 between the two collars 11 at the front and rear ends of the two first connecting plates 4. The two first hooks 902 are respectively sleeved on the outer side of the fourth bolt 12 at the front and rear ends of the two second connecting plates 5. The tension of the two first springs 901 pulls the first bolt 1 and the fourth bolt 12 closer to each other. When replacing the first spring 901, the first nut 3 and the fourth nut 13 need to be removed, and the first hook 902 and the second hook 903 need to be removed to facilitate replacement and improve replacement efficiency.

[0035] Each of the two first connecting plates 4 has a base 904 fixedly connected to its end face that is close to each other. Each of the two bases 904 has a groove 906 at the center of its end face that is close to each other. A second spring 905 is provided between the two grooves 906. The tension of the second spring 905 pushes the two first connecting plates 4 away from each other, so that the two first connecting plates 4 and the two second connecting plates 5 return to their initial positions. When replacement is required, the first bolt 1 and the fourth bolt 12 are brought closer together by a pressing device, which increases the distance between the two bases 904, making it easier to remove the second spring 905. After installing the new second spring 905, the first bolt 1 and the fourth bolt 12 are pulled away from each other, so that the two bases 904 are brought closer together, and the second spring 905 is clamped inside the groove 906 for replacement.

[0036] The upper ends of the two collars 11 are fixedly connected to hanging rings 2, which facilitates the connection between the hanging rings 2 and the crane to lift heavy objects.

[0037] Working principle: In use, by pressing one of the extension blocks 1002 against the goods and pressing the other side of the hook 6 inward, the hanging ring 2 is pulled. At this time, the hanging ring 2 pulls one end of the two first connecting plates 4 upward, so that the connection parts of the two first connecting plates 4 and the two second connecting plates 5 rotate relative to each other. Since the ends of the two second connecting plates 5 are connected to the fourth bolt 12 and the fourth nut 13, the ends of the two hooks 6 move towards the center position to clamp the goods. At this time, the two first springs 901 are stretched, and the two first connecting plates 4 squeeze the second springs 905. The ends of the two hooks 6 are respectively attached to the inside of the pressure groove 1003 at the lower end of the two extension blocks 1002, which can effectively increase the contact between the ends of the two hooks 6 and reduce the risk of local indentation and slippage.

[0038] When lowering the load after hoisting, the tension of the two first springs 901 pulls the first bolt 1 and the fourth bolt 12 closer together, while the tension of the second spring 905 pushes the two first connecting plates 4 away from each other, causing the two first connecting plates 4 and the two second connecting plates 5 to return to their initial positions. At this time, the second connecting plates 5 drive the two clamping hooks 6 to rotate to both sides, releasing the clamps on the goods. The arrangement of the second spring 905 and the two first springs 901 reduces fatigue and increases service life. When replacement is needed, the first bolt 1 is lowered by pressing the device. The proximity of bolt 1 and fourth bolt 12 increases the distance between the two bases 904, making it easier to remove the second spring 905. After installing the new second spring 905, the first bolt 1 and fourth bolt 12 are pulled apart to bring the two bases 904 closer together. The second spring 905 is then clamped inside the groove 906 for replacement. When replacing the first spring 901, the first nut 3 and fourth nut 13 need to be removed, and the first hook 902 and second hook 903 need to be removed for easy replacement and to improve replacement efficiency.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamp-type self-detaching lifting device with a lifting and anti-falling design, comprising a first bolt (1), characterized in that: Two collars (11) are sleeved on the front end of the first bolt (1). Two first connecting plates (4) are sleeved on the outer side of the first bolt (1) between the two collars (11). A first nut (3) is threaded on the outer side of the first bolt (1) at the front end of the collar (11). A second connecting plate (5) is rotatably connected to the other end of the two first connecting plates (4). A hook (6) is fixedly connected to the end of the two second connecting plates (5). The two second connecting plates (5) are attached to each other at the end away from the two first connecting plates (4), and a fourth bolt (12) is provided at the rear end of the attachment point. The fourth bolt (12) passes through the two second connecting plates (5) in sequence to the front end of the second connecting plate (5), and a fourth nut (13) is threaded on the end. A limiting structure (10) is provided at the lower end of the rear end face of the second connecting plate (5) at the front end and at the lower end of the front end face of the second connecting plate (5) at the rear end. Taking the limiting structure (10) at the front as an example, the limiting structure (10) includes a base block (1001). An extension block (1002) is fixedly connected to the upper part of the end of the base block (1001) away from the second connecting plate (5). Two third bolts (1004) are provided on the rear end face of the hook (6) at the rear end of the base block (1001). The two third bolts (1004) pass through the rear end face of the hook (6) and the rear end face of the base block (1001) in sequence and reach the front end of the base block (1001). The ends of the two bolts are threaded with a third nut (1005).

2. A clamp-type self-detaching lifting device with a lifting and anti-falling design according to claim 1, characterized in that: The lower end face of the extension block (1002) is provided with a pressure groove (1003).

3. A clamp-type self-detaching lifting device with a lifting and anti-falling design according to claim 1, characterized in that: The two first connecting plates (4) and the two second connecting plates (5) are provided with second bolts (7) at their respective rear ends. The two second bolts (7) pass through the two first connecting plates (4) and the two second connecting plates (5) respectively and extend to the front ends of the two first connecting plates (4) and the two second connecting plates (5), and the ends are threaded with second nuts (8).

4. A clamp-type self-detaching lifting device with a lifting and anti-falling design according to claim 1, characterized in that: A spring-loaded structure (9) is provided between the two first connecting plates (4). The spring-loaded structure (9) includes two first springs (901). The two first springs (901) are respectively located at the front and rear ends of the two first connecting plates (4). The upper and lower ends of the two first springs (901) are respectively fixedly connected with a first hook (902) and a second hook (903). The two second hooks (903) are respectively sleeved on the outside of the first bolt (1) between the two collars (11) at the front and rear ends of the two first connecting plates (4). The two first hooks (902) are respectively sleeved on the outer side wall of the fourth bolt (12) at the front and rear ends of the two second connecting plates (5).

5. A clamp-type self-detaching lifting device with a lifting and anti-falling design according to claim 1, characterized in that: A base (904) is fixedly connected to one end face of each of the two first connecting plates (4) that are close to each other. A groove (906) is provided at the center of the one end face of each of the two bases (904) that are close to each other. A second spring (905) is provided between the two grooves (906).

6. A clamp-type self-detaching lifting device with a lifting and anti-falling design according to claim 1, characterized in that: The upper ends of the two collars (11) are fixedly connected with hanging rings (2).

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