Safety hook for single-beam crane

Abstract

The utility model discloses a safety hook for a single-beam crane, which relates to the technical field of safety hooks for single-beam cranes and comprises a square fixing seat, a hook is fixedly connected to the bottom of the fixing seat, an opening of the hook is arranged on the left side, the bottom of the hook is semicircular, and a protective shell is arranged at the top of the hook and made of rubber. The top and the bottom of the protective shell are arc-shaped, the bottom of the protective shell is tightly attached to the top of the hook, the length of the protective shell is smaller than that of the hook, the protective shell and the hook are concentric, a fixing hole is formed in the top of the protective shell and penetrates through the hook, and the width of the protective shell is larger than that of the hook. The cable fixing device is simple to use and convenient to operate, can effectively prevent the hook and a cable from being abraded due to friction, and can prevent the cable from shaking on the hook at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of safety hooks for single-beam cranes, in particular to a safety hook for single-beam cranes. Background Art

[0002] Electric single-beam crane is a kind of lifting equipment, which is mostly used in warehouses, machinery manufacturing, assembly and other places. Electric single-beam crane generally includes a guide rail, a suspension beam is slidably connected on the guide rail, and a lifting mechanism is connected under the suspension beam. Usually, after the heavy object is connected to the lifting mechanism through one or more heavy object hooks, the heavy object is lifted by the lifting mechanism, the suspension beam moves on the guide rail, and the heavy object is transported to the designated location. Finally, the heavy object hook is removed from the heavy object, completing the whole process of heavy object transportation.

[0003] Although the safety hook for a single-beam crane disclosed in the Chinese utility model patent application disclosure CN214217903U solves the problem of preventing the heavy object from slipping off the hook, the safety hook for a single-beam crane still has the following disadvantages: First, when the hook is lifting, there will be friction between the cable and the hook. Since both the cable and the hook are metal objects, the friction will cause wear of the cable or the hook, which is not conducive to long-term use; Second, when the hook is lifting, the heavy object moves in the air, which will cause the cable to move inside the hook, and the cable will cause the heavy object to shake more severely when moving. Therefore, in order to avoid excessive shaking of the heavy object, it can only move slowly during movement. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a safety hook for a single-beam crane, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a safety hook for a single-beam crane, comprising a fixing seat, the fixing seat is square, the bottom of the fixing seat is fixedly connected to a hook, the opening of the hook is on the left, the bottom of the hook is in a semicircular ring shape, a protective shell is provided on the top of the hook, the protective shell is made of rubber, the top and bottom of the protective shell are both arc-shaped, the bottom of the protective shell is tightly attached to the top of the hook, the length of the protective shell is shorter than the hook, the protective shell and the hook have the same center, a fixing hole is provided on the top of the protective shell, the fixing hole passes through the hook, the width of the protective shell is greater than the hook, threaded holes are provided on the front and back of the protective shell, the bottom of the hook is fixedly connected to a fixing rod, and the fixing rod is in a circular ring shape.

[0008] Optionally, there are two fixing holes, the fixing holes are square, and the fixing holes are symmetrically distributed with respect to the hook. There are two fixing rods, the fixing rods are symmetrically distributed with respect to the hook, and the fixing rods are located on the left and right sides of the fixing hole.

[0009] Optionally, the length of the fixing rod is smaller than the thickness of the hook, and a bolt is provided on the inner wall of the fixing rod. The bolt is slidably connected to the fixing rod and the threaded hole, and a nut is threadedly connected to the outer end of the bolt. The nut is located on the back of the hook, and the bolt is located on the front of the hook. A cable is provided on the top of the protective shell.

[0010] Optionally, a first groove is provided on the left side of the fixing seat, and a second groove is provided on the top of the fixing seat, the first groove and the second groove are vertically crossed, the first groove is square, the second groove is rectangular, the width of the first groove is half of the width of the second groove, and a third clamping rod is slidably connected to the inner wall of the first groove, the size and shape of the third clamping rod are consistent with those of the first groove, the outer end of the third clamping rod is fixedly connected to a second baffle, the width of the second baffle is larger than that of the third clamping rod, and the end of the third clamping rod away from the second baffle is table-shaped.

[0011] Optionally, the inner wall of the second groove is slidably connected to a first clamping rod, the top of the first clamping rod is fixedly connected to a first baffle, the width of the first baffle is greater than that of the first clamping rod, a clamping slot is opened on the left side of the first clamping rod, the clamping slot passes through the first clamping rod, the size and shape of the clamping slot are consistent with the first groove, the left and right side walls of the first clamping rod are fixedly connected to the second clamping rod, the outer wall of the second clamping rod is tightly attached to the left and right inner walls of the second groove, and the inner bottom wall of the second groove is fixedly connected to a spring, and the top of the spring is fixedly connected to the bottom of the second clamping rod.

[0012] Optionally, the second groove and the first clamping rod are both located at the center of the fixed seat, the bottom of the first clamping rod is fixedly connected with a clamping plate, the top and bottom of the clamping plate are both arc-shaped, the clamping plate is located directly above the hook, the bottom of the clamping plate is fixedly connected with a fixing pin, the fixing pin is located directly above the fixing hole, there are two fixing pins, the fixing pins correspond to the fixing holes one by one, and the size and shape of the fixing pins are consistent with the fixing holes.

[0013] (III) Beneficial effects

[0014] The utility model provides a safety hook for a single-beam crane, which has the following beneficial effects:

[0015] 1. The safety hook for the single-beam crane has the effect of preventing the hook and the cable from being worn due to friction by setting the protective shell material to rubber. The protective shell can be easily disassembled and installed during use by setting the fixing rod and the bolt, thereby facilitating the replacement of the protective shell.

[0016] 2. The safety hook for the single-beam crane is fixedly connected to the bottom of the clamping plate with a fixing pin, so that the safety hook for the single-beam crane can clamp the cable by the clamping plate and the protective shell, thereby reducing the shaking of the cable. Through the coordinated arrangement of the second clamping rod, the first clamping rod, the fixing pin and the fixing hole, it can be moved upward or downward during use, so that the clamping plate can be lowered during lifting, thereby achieving the purpose of fixing the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the entire utility model;

[0018] Figure 2 This is a schematic diagram of the internal cross-section of the entire front side of the utility model;

[0019] Figure 3 It is a schematic diagram of the left side of the utility model as a whole;

[0020] Figure 4 This is a schematic diagram of the overall bottom of the utility model;

[0021] Figure 5 It is a schematic cross-sectional view of the back of the utility model as a whole.

[0022] In the figure: 1. fixing seat; 2. hook; 3. protective shell; 4. fixing hole; 5. bolt; 6. fixing rod; 7. nut; 8. first slot; 9. second slot; 10. first clamping rod; 11. first baffle; 12. second clamping rod; 13. spring; 14. clamping plate; 15. fixing pin; 16. third clamping rod; 17. second baffle; 18. clamping slot; 19. cable. DETAILED DESCRIPTION

[0023] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Embodiment 1:

[0025] See also Figures 1 to 5The utility model provides a technical solution: a safety hook for a single-beam crane, comprising a fixing seat 1, the fixing seat 1 is square, a hook 2 is fixedly connected to the bottom of the fixing seat 1, the opening of the hook 2 is on the left, the bottom of the hook 2 is in a semicircular ring shape, a protective shell 3 is arranged on the top of the hook 2, the material of the protective shell 3 is rubber, the top and bottom of the protective shell 3 are both in an arc shape, the bottom of the protective shell 3 is tightly attached to the top of the hook 2, the length of the protective shell 3 is less than the hook 2, the protective shell 3 and the hook 2 have the same center, a fixing hole 4 is opened on the top of the protective shell 3, the fixing hole 4 passes through the hook 2, the width of the protective shell 3 is greater than the hook 2, and the front of the protective shell 3 is in contact with the hook 2. There are threaded holes on the back side, and a fixing rod 6 is fixedly connected to the bottom of the hook 2. The fixing rod 6 is in a circular ring shape, and there are two fixing holes 4, which are square in shape. The fixing holes 4 are symmetrically distributed on the hook 2. There are two fixing rods 6, which are symmetrically distributed on the hook 2. The fixing rod 6 is located on the left and right sides of the fixing hole 4. The length of the fixing rod 6 is less than the thickness of the hook 2. A bolt 5 is provided on the inner wall of the fixing rod 6. The bolt 5 is slidably connected to the fixing rod 6 and the threaded hole. The outer end of the bolt 5 is threadedly connected to a nut 7, which is located on the back side of the hook 2, and the bolt 5 is located on the front side of the hook 2. A cable 19 is provided on the top of the protective shell 3.

[0026] During use, when the hook 2 is lifting, there will be friction between the cable 19 and the hook 2. Because the cable 19 and the hook 2 are both metal objects, the friction will cause wear of the cable 19 or the hook 2, which is not conducive to long-term use. Therefore, there is a safety hook for a single-beam crane. Before the crane is lifted, the protective shell 3 is first installed on the top of the hook 2. At this time, the protective shell 3 is placed above the hook 2, so that the fixing hole 4 at the top of the protective shell 3 is aligned with the fixing hole 4 at the top of the hook 2, and the threaded hole is aligned with the fixing rod 6. Then, the bolt 5 is inserted into the threaded hole and the fixing rod 6 from the front of the hook 2, and then the nut 7 is threadedly rotated with the bolt 5 from the back of the hook 2, so that the protective shell 3 is firmly installed on the top of the hook 2. Because the material of the protective shell 3 is rubber-like, the cable 19 can be prevented from being damaged by friction while avoiding damage to the hook 2. At the same time, because the friction of the rubber is large, the cable 19 will be reduced from sliding on the top of the hook 2.

[0027] Embodiment 2:

[0028] See also Figures 1 to 5The utility model provides a technical solution: a safety hook for a single-beam crane, a first slot 8 is provided on the left side of a fixed seat 1, a second slot 9 is provided on the top of the fixed seat 1, the first slot 8 and the second slot 9 are in a vertical cross shape, the first slot 8 is square, the second slot 9 is rectangular, the width of the first slot 8 is half the width of the second slot 9, a third clamping rod 16 is slidably connected to the inner wall of the first slot 8, the size and shape of the third clamping rod 16 are consistent with the first slot 8, a second baffle 17 is fixedly connected to the outer end of the third clamping rod 16, the width of the second baffle 17 is greater than that of the third clamping rod 16, and the end of the third clamping rod 16 away from the second baffle 17 is in a table shape, a first clamping rod 10 is slidably connected to the inner wall of the second slot 9, a first baffle 11 is fixedly connected to the top of the first clamping rod 10, the width of the first baffle 11 is greater than that of the first clamping rod 10, and the left side of the first clamping rod 10 is opened A card slot 18 is provided, and the card slot 18 passes through the first card rod 10. The size and shape of the card slot 18 are consistent with the first slot 8. The left and right side walls of the first card rod 10 are fixedly connected with the second card rod 12, and the outer side wall of the second card rod 12 is tightly attached to the left and right inner side walls of the second slot 9. The inner bottom wall of the second slot 9 is fixedly connected with a spring 13, and the top of the spring 13 is fixedly connected to the bottom of the second card rod 12. The second slot 9 and the first card rod 10 are both located at the center of the fixed seat 1, and the bottom of the first card rod 10 is fixedly connected with a card plate 14. The top and bottom of the card plate 14 are both arc-shaped. The card plate 14 is located directly above the hook 2, and the bottom of the card plate 14 is fixedly connected with a fixing pin 15, which is located directly above the fixing hole 4. There are two fixing pins 15, and the fixing pins 15 correspond to the fixing holes 4 one by one. The size and shape of the fixing pins 15 are consistent with the fixing holes 4.

[0029] When in use, when the hook 2 is hoisted, the heavy object moves in the air, which will cause the cable 19 to move inside the hook 2. When the cable 19 moves, the heavy object will shake more severely. Therefore, in order to avoid excessive shaking of the heavy object, it can only move slowly. Therefore, there is a safety hook for a single-beam crane. When the cable 19 is hung on the top of the hook 2, the worker presses the first clamping rod 10 by hand, and the first clamping rod 10 drives the clamping plate 14 and the fixing pin 15 to move downward. At this time, the second clamping rod 12 compresses the spring 13 downward, and when the bottom of the clamping plate 14 is close to the When the cable 19 is inserted, the slot 18 is flush with the first slot 8. At this time, the third clamping rod 16 is moved to the right, and the right side wall of the third clamping rod 16 is inserted into the slot 18 and is close to the right inner wall of the first slot 8. At this time, the first clamping rod 10 cannot move, and the fixing pin 15 is inserted into the fixing hole 4 to prevent the cable 19 from moving to the left and right sides due to being squeezed by the clamping plate 14 and the protective shell 3, and at the same time, the clamping plate 14 can be prevented from shaking. Through the setting of the clamping plate 14, the shaking of the cable 19 when moving in the air can be reduced, thereby preventing the shaking of the goods in the air from being aggravated due to the shaking of the cable 19.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety hook for a single-beam crane, comprising a fixing seat (1), characterized in that: The fixing seat (1) is square in shape. A hook (2) is fixedly connected to the bottom of the fixing seat (1). The opening of the hook (2) is on the left. The bottom of the hook (2) is in the shape of a semicircular ring. A protective shell (3) is provided on the top of the hook (2). The material of the protective shell (3) is rubber. The top and bottom of the protective shell (3) are both in the shape of an arc. The bottom of the protective shell (3) is tightly attached to the top of the hook (2). The length of the protective shell (3) is shorter than the hook (2). The protective shell (3) and the hook (2) have the same center. A fixing hole (4) is provided on the top of the protective shell (3). The fixing hole (4) passes through the hook (2). The width of the protective shell (3) is greater than that of the hook (2). The front and back of the protective shell (3) are both provided with threaded holes. A fixing rod (6) is fixedly connected to the bottom of the hook (2). The fixing rod (6) is in the shape of a circular ring.

2. A safety hook for a single beam crane according to claim 1, characterized in that: There are two fixing holes (4), the fixing holes (4) are square, and the fixing holes (4) are symmetrically distributed with respect to the hook (2). There are two fixing rods (6), the fixing rods (6) are symmetrically distributed with respect to the hook (2), and the fixing rods (6) are located on the left and right sides of the fixing hole (4).

3. A safety hook for a single-beam crane according to claim 1 or 2, characterized in that: The length of the fixing rod (6) is less than the thickness of the hook (2); a bolt (5) is provided on the inner wall of the fixing rod (6); the bolt (5) is slidably connected to the fixing rod (6) and the threaded hole; a nut (7) is threadedly connected to the outer end of the bolt (5); the nut (7) is located on the back of the hook (2); the bolt (5) is located on the front of the hook (2); and a cable (19) is provided on the top of the protective shell (3).

4. The safety hook for a single-beam crane according to claim 1, characterized in that: A first groove (8) is provided on the left side of the fixing seat (1), and a second groove (9) is provided on the top of the fixing seat (1); the first groove (8) and the second groove (9) are in a vertical cross shape; the first groove (8) is in a square shape, and the second groove (9) is in a rectangular shape; the width of the first groove (8) is half the width of the second groove (9); a third clamping rod (16) is slidably connected to the inner wall of the first groove (8); the size and shape of the third clamping rod (16) are consistent with those of the first groove (8); the outer end of the third clamping rod (16) is fixedly connected to a second baffle plate (17); the width of the second baffle plate (17) is greater than that of the third clamping rod (16); and the end of the third clamping rod (16) away from the second baffle plate (17) is in a table shape.

5. A safety hook for a single beam crane according to claim 4, characterized in that: The inner wall of the second slot (9) is slidably connected to a first clamping rod (10), the top of the first clamping rod (10) is fixedly connected to a first baffle (11), the width of the first baffle (11) is greater than that of the first clamping rod (10), a clamping groove (18) is provided on the left side of the first clamping rod (10), the clamping groove (18) passes through the first clamping rod (10), the size and shape of the clamping groove (18) are consistent with those of the first slot (8), the left and right side walls of the first clamping rod (10) are fixedly connected to second clamping rods (12), the outer side wall of the second clamping rod (12) is tightly attached to the left and right inner side walls of the second slot (9), the inner bottom wall of the second slot (9) is fixedly connected to a spring (13), the top of the spring (13) is fixedly connected to the bottom of the second clamping rod (12).

6. A safety hook for a single beam crane according to claim 5, characterized in that: The second groove (9) and the first clamping rod (10) are both located at the center of the fixing seat (1); the bottom of the first clamping rod (10) is fixedly connected to a clamping plate (14); the top and bottom of the clamping plate (14) are both arc-shaped; the clamping plate (14) is located directly above the hook (2); the bottom of the clamping plate (14) is fixedly connected to a fixing pin (15); the fixing pin (15) is located directly above the fixing hole (4); there are two fixing pins (15); the fixing pins (15) correspond to the fixing holes (4) one by one; the size and shape of the fixing pins (15) are consistent with those of the fixing holes (4).

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