Crane hook fixing assembly

Abstract

The invention discloses a crane hook fixing assembly, and relates to the technical field of cranes. The device comprises a box body, a first rotating shaft and a second rotating shaft are rotationally arranged on the inner wall of the box; first arc-shaped pressing plates are fixed on the circumferential side surfaces of the first rotating shaft and the second rotating shaft; first gears are fixed at one ends of the first rotating shafts; second gears are fixed at one ends of the second rotating shafts; a detection sliding groove penetrates through the inner bottom surface of the box body; sliding plates are slidably arranged on the inner walls of the detection sliding grooves. Connecting plates are fixed to the surfaces of the sliding plates. A first rack and a second rack are fixed on the surface of the connecting plate; a detection plate is fixed on the inner top surface of the box body; and a pressure sensor is arranged in the detection plate. The detection plate is arranged and matched with the pressure sensor, the detection plate is extruded to detect the pressure value, the rubber leather cushion firstly makes contact with the detection plate to enable the pressure sensor to detect the pressure, the pressure is gradually increased in the process that the arc-shaped spring is compressed to the minimum limit, then the pressure is detected in the whole process, and the situation that the lifting hook is damaged due to the too large weight is prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of cranes, and in particular relates to a crane hook fixing assembly. Background Art

[0002] During construction, hooks are often used to lift heavy objects to heights or transfer them elsewhere. Hooks are the most common type of lifting equipment in lifting machinery. They are categorized by shape as single or double hooks, and by manufacturing method as forged or laminated. Single hooks are simple to manufacture and easy to use, but they are less able to withstand loads.

[0003] At present, when using a crane hook to lift a heavy object, the hook is usually used to hook the heavy object, and then the crane drives the hook to rise to transfer the heavy object. However, due to the different weights of the heavy objects, when encountering a heavy object, excessive pressure may be applied to the hook, shortening the service life of the hook. When the weight is too heavy, the hook may be damaged, which poses a certain risk.

[0004] To this end, we provide a crane hook fixing assembly to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a crane hook fixing assembly. By setting a detection plate and a pressure sensor inside the detection plate, the device can detect the pressure value by squeezing the detection plate when lifting a heavy object. When the pressure value is within the preset value range, the heavy object can be lifted and transferred normally. When the pressure value exceeds the preset value, the heavy object is put back to the ground to prevent the heavy object from being too heavy and damaging the hook. This solves the problem that when the existing hook lifts a heavy object, it may apply overload pressure to the hook, shorten the service life of the hook, and may damage the hook when the weight is too large, which poses certain risks.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention relates to a crane hook fixing assembly, comprising a box body; a detection assembly is arranged inside the box body; the detection assembly comprises a first rotating shaft and a second rotating shaft respectively rotating on two opposite inner walls of the box body; the first rotating shaft and the second rotating shaft are coaxial; a first arc-shaped pressing plate is fixed to the circumferential side surfaces of the first rotating shaft and the second rotating shaft; a first gear is fixed to one end of the first rotating shaft; a second gear is fixed to one end of the second rotating shaft; a detection slide groove is provided through the bottom surface of the box body; a slide plate is slidingly provided on the inner wall of the detection slide groove; a connecting plate is fixed on the surface of the slide plate; a first rack and a second rack are fixed on the surface of the connecting plate; the first rack is meshed with the first gear; the second rack is meshed with the second gear; a detection plate is fixed to the top surface of the box body between the two first arc-shaped pressing plates; a pressure sensor is arranged inside the detection plate.

[0008] The present invention is further configured such that a T-shaped limiting rail coaxial with the first gear is fixed on the side surface; a T-shaped limiting groove coaxial with the second gear is opened on the side surface; and the T-shaped limiting rail and the T-shaped limiting groove are slidably matched.

[0009] The present invention is further configured such that a mounting plate is fixed to the side of the first arc-shaped pressing plate; a second arc-shaped pressing plate is fixed to the side of the mounting plate; and an arc-shaped groove is opened on the side of the second arc-shaped pressing plate, which is compatible with the circumferential side surfaces of the first rotating shaft and the second rotating shaft.

[0010] The present invention is further configured such that an arc-shaped slide plate is provided between the first arc-shaped pressing plate and the second arc-shaped pressing plate; two protective plates are symmetrically fixed on the sides of the arc-shaped slide plate; a rubber pad is fixed on the side of one of the protective plates; and an arc-shaped spring is connected between the other protective plate and the mounting plate.

[0011] The present invention is further configured such that T-shaped guide rails are symmetrically fixed on the side surfaces of the arc-shaped slide; T-shaped guide grooves for slidingly cooperating with the T-shaped guide rails are provided on the sides of the first arc-shaped pressing plate and the second arc-shaped pressing plate; and a plurality of reset springs are fixed between the connecting plate and the inner bottom surface of the box body.

[0012] The present invention is further configured as follows: an adjustment block is fixed on the bottom surface of the slide; a U-shaped plate is rotatably provided on the side of the adjustment block; a hook is fixed on the bottom surface of the U-shaped plate; and a lock is rotatably provided on the side of the hook.

[0013] The present invention is further configured such that two positioning grooves are symmetrically provided on two opposite sides of the box body; guide wheels are slidingly provided on the inner walls of the positioning grooves; T-shaped grooves are symmetrically provided on two opposite inner walls of the positioning grooves; and T-shaped slide rails are symmetrically fixed on both sides of the guide wheels and slideably cooperate with the T-shaped grooves.

[0014] The present invention is further configured such that a baffle is fixed between two opposite inner walls of the positioning slot; sponges are fixed to the bottom surface of the baffle and the peripheral side surface of the guide wheel; and a limiting plate is fixed to the peripheral side surface of the guide wheel.

[0015] The present invention is further configured as follows: a first lifting lug is symmetrically fixed on the side surface of the U-shaped plate; two second lifting lugs are fixed on the side surface of the hook; a steel wire rope is connected between the first lifting lug and the second lifting lug; one end of the steel wire rope is fixed on the first lifting lug, and the other end thereof passes through the guide wheel and is fixed on the second lifting lug.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention sets a detection plate and a pressure sensor inside the detection plate, so that the device can detect the pressure value by squeezing the detection plate when lifting a heavy object. When the pressure value is within the preset value range, the heavy object can be lifted and transferred normally. When the pressure value exceeds the preset value, the heavy object is put back on the ground to prevent the heavy object from being too heavy and damaging the hook.

[0018] 2. The present invention slides an arc-shaped slide plate and a protective plate between the first arc-shaped pressing plate and the second arc-shaped pressing plate, and cooperates with the arc spring for buffering, so that in the process of lifting heavy objects, the slide plate slides downward to drive the first rack and the second rack to slide downward, the first rack drives the first gear and the first rotating shaft to rotate clockwise, and the second rack drives the second gear and the second rotating shaft to rotate counterclockwise, thereby driving the first arc-shaped pressing plate and the second arc-shaped pressing plate to approach the detection plate, the rubber pad first contacts the detection plate, the pressure sensor first detects the pressure, and then the arc spring is slowly compressed to the minimum. During the process, the pressure slowly increases, and then the pressure sensor can detect the pressure value throughout the entire process, further improving the detection efficiency.

[0019] 3. When the device of the present invention is not in use, the guide wheel is in the lowest position, the wire rope is in a relaxed state, and the hook can change its angle. When hooking a heavy object, the guide wheel is fixed at the highest position. At this time, the wire rope is tightened and the hook is adjusted to a fixed state and can no longer be rotated. The hook is then fixed and limited, which improves stability and reduces the risk factor.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The figure is a structural diagram of a crane hook fixing assembly.

[0023] Figure 2 For the present invention Figure 1 Another perspective structural diagram.

[0024] Figure 3 This is a schematic structural diagram of the present invention when the hook is not in use.

[0025] Figure 4 For the present invention Figure 3 A magnified view of area A.

[0026] Figure 5 It is a structural schematic diagram of the present invention in the hook use state.

[0027] Figure 6 For the present invention Figure 5 Magnified view of area B.

[0028] Figure 7 It is a structural schematic diagram of the curved slide of the present invention.

[0029] Figure 8 Schematic diagram of the structure of the detection component of the present invention.

[0030] Figure 9 It is a structural schematic diagram of the first rotating shaft of the present invention.

[0031] Figure 10 It is a schematic structural diagram of the second rotating shaft of the present invention.

[0032] Figure 11 It is a structural schematic diagram of the guide wheel of the present invention.

[0033] Figure 12 It is a cross-sectional view of the box body of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 1-Box, 2-First Rotating Shaft, 3-Second Rotating Shaft, 4-First Arc-Shaped Pressing Plate, 5-First Gear, 6-Second Gear, 7-Detection Slide, 8-Slide Plate, 9-Connecting Plate, 10-First Rack, 11-Second Rack, 12-Detection Plate, 13-T-Shaped Limiting Rail, 14-T-Shaped Limiting Slot, 15-Mounting Plate, 16-Second Arc-Shaped Pressing Plate, 17-Arc Slot, 18-Protective Plate, 19-Rubber Pad, 20- Arc spring, 21-T-shaped guide rail, 22-T-shaped guide groove, 23-reset spring, 24-adjustment block, 25-U-shaped plate, 26-hook, 27-lock, 28-positioning slide, 29-guide wheel, 30-T-shaped slide, 31-T-shaped slide rail, 32-baffle, 33-sponge, 34-limiting plate, 35-first lifting ear, 36-second lifting ear, 37-wire rope, 38-detection component, 39-arc slide. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] For specific embodiment 1, please refer to Figure 1-12 The present invention is a crane hook fixing assembly, comprising a box body 1; a detection assembly 38 is arranged inside the box body 1; the detection assembly 38 includes a first rotating shaft 2 and a second rotating shaft 3 that rotate on two opposite inner walls of the box body 1 respectively; the first rotating shaft 2 and the second rotating shaft 3 are coaxial; the first rotating shaft 2 and the second rotating shaft 3 are fixed with a first arc-shaped pressing plate 4 on the circumferential side surfaces; one end of the first rotating shaft 2 is fixed with a first gear 5; one end of the second rotating shaft 3 is fixed with a second gear 6; a detection slide groove 7 is opened through the bottom surface of the box body 1; a slide plate 8 is slidingly arranged on the inner wall of the detection slide groove 7; a connecting plate 9 is fixed on the surface of the slide plate 8; a first rack 10 and a second rack 11 are fixed on the surface of the connecting plate 9; the first rack 10 is meshed with the first gear 5; the second rack 11 is meshed with the second gear 6; a detection plate 12 is fixed on the top surface of the box body 1 between the two first arc-shaped pressing plates 4; a pressure sensor is arranged inside the detection plate 12.

[0038] Specifically, a T-shaped limiting rail 13 coaxial with the first gear 5 is fixed to the side surface; a T-shaped limiting groove 14 coaxial with the second gear 6 is opened on the side surface; the T-shaped limiting rail 13 and the T-shaped limiting groove 14 are slidably matched.

[0039] Furthermore, an adjusting block 24 is fixed to the bottom surface of the slide plate 8; a U-shaped plate 25 is rotatably provided on the side of the adjusting block 24; a hook 26 is fixed to the bottom surface of the U-shaped plate 25; and a lock buckle 27 is rotatably provided on the side of the hook 26.

[0040] The operation process of this embodiment is as follows: first, the U-shaped plate 25 is rotated along the adjusting block 24 to drive the hook 26 to rotate, so as to adjust the direction of the hook 26 and hook the weight, and then the hook 26 is locked with the lock buckle 27.

[0041] Then the crane drives the box 1 to rise, the slide plate 8 slides downward along the detection slide groove 7 and drives the connecting plate 9 to slide downward, thereby driving the first rack 10 and the second rack 11 to slide downward. In the process of the first rack 10 sliding downward, it drives the first gear 5 and the first rotating shaft 2 to rotate clockwise, thereby driving the first arc pressing plate 4 to rotate clockwise and approach the detection plate 12. In the process of the second rack 11 sliding downward, it drives the second gear 6 and the second rotating shaft 3 to rotate counterclockwise, thereby driving the first arc pressing plate 4 to rotate counterclockwise and approach the detection plate 12. In the process of rotation of the first gear 5 and the second gear 6, the T-shaped limit rail 13 on the side of the first gear 5 slides along the T-shaped limit groove 14 on the side of the second gear 6 to prevent the first gear 5 and the second gear 6 from misalignment, and then the two first arc pressing plates 4 slowly press the detection plate 12. The pressure sensor in the detection plate 12 detects pressure, and the pressure sensor transmits the pressure value to the external controller electrically connected to it.

[0042] As the heavy object slowly leaves the ground during the lifting process, if the pressure is within the preset value when the heavy object is just fully pulled up, the controller will drive the crane to continue to lift the box 1 and transfer the heavy object. If the pressure exceeds the preset value when the heavy object is just fully pulled up, the controller will drive the crane to stop lifting the box 1 and descend to place the heavy object back on the ground.

[0043] In this embodiment, when the hook is not in use, there is no pressure on the detection plate 12, and the pressure value detected by the pressure sensor is 0. When the hook needs to be used to lift a heavy object, the hook 26 is used to hook the heavy object and fasten it with the lock 27. The slide plate 8 slides downward, driving the first rack 10 and the second rack 11 to slide downward. The first rack 10 drives the first gear 5 and the first rotating shaft 2 to rotate clockwise, and the second rack 11 drives the second gear 6 and the second rotating shaft 3 to rotate counterclockwise, thereby making the two first arc-shaped pressing plates 4 approach and press the detection plate 12, and then the pressure sensor detects the pressure to prevent excessive pressure from damaging the hook 26.

[0044] For specific embodiment 2, please refer to Figure 1-12 On the basis of the specific embodiment 1, a mounting plate 15 is fixed to the side of the first arc-shaped pressing plate 4; a second arc-shaped pressing plate 16 is fixed to the side of the mounting plate 15; and an arc-shaped groove 17 is opened on the side of the second arc-shaped pressing plate 16, which is compatible with the side surfaces of the first rotating shaft 2 and the second rotating shaft 3.

[0045] Specifically, an arc-shaped slide plate 39 is provided between the first arc-shaped pressing plate 4 and the second arc-shaped pressing plate 16; two protective plates 18 are symmetrically fixed on the sides of the arc-shaped slide plate 39; a rubber pad 19 is fixed on the side of one protective plate 18; and an arc-shaped spring 20 is connected between the other protective plate 18 and the mounting plate 15.

[0046] Furthermore, T-shaped guide rails 21 are symmetrically fixed on the sides of the arc-shaped slide plate 39; T-shaped guide grooves 22 that slide with the T-shaped guide rails 21 are opened on the sides of the first arc-shaped pressing plate 4 and the second arc-shaped pressing plate 16; and several return springs 23 are fixed between the connecting plate 9 and the inner bottom surface of the box body 1.

[0047] The operation process of this embodiment is as follows: when the device is not in use, the two first arc-shaped pressing plates 4 are away from each other, the detection plate 12 is not pressed, and the arc-shaped spring 20 is in a relaxed state.

[0048] When the device is used, the slide plate 8 slides downward, driving the first rack 10 and the second rack 11 to slide downward. In the process of the first rack 10 sliding downward, it drives the first gear 5 and the first rotating shaft 2 to rotate clockwise, and then drives the first arc-shaped pressing plate 4, the mounting plate 15 and the second arc-shaped pressing plate 16 to rotate clockwise and approach the detection plate 12. In the process of the second rack 11 sliding downward, it drives the second gear 6 and the second rotating shaft 3 to rotate counterclockwise, and then drives the first arc-shaped pressing plate 4, the mounting plate 15 and the second arc-shaped pressing plate 16 to rotate counterclockwise and approach the detection plate 12. In the process of the first gear 5 and the second gear 6 rotating, the T-shaped limit rail 13 on the side of the first gear 5 slides along the T-shaped limit groove 14 on the side of the second gear 6 to prevent the first gear 5 and the second gear 6 from being misaligned.

[0049] When the first arc-shaped pressing plate 4 approaches the detection plate 12, the rubber pad 19 first fits the detection plate 12, and then slowly squeezes the corresponding protective plate 18, and then squeezes the corresponding arc-shaped slide plate 39 to make the T-shaped guide rail 21 slide along the T-shaped guide groove 22, and then drives the protective plate 18 to squeeze the arc spring 20, so that the protective plate 18 connected to the arc spring 20 slides toward the direction close to the mounting plate 15 until the weight is lifted, and the pressure sensor detects the pressure and sends it to the controller.

[0050] In this embodiment, an arc-shaped slide plate 39 and a protective plate 18 are slidably set between the first arc-shaped pressing plate 4 and the second arc-shaped pressing plate 16, and the arc-shaped spring 20 is used for buffering. In the process of lifting heavy objects, the rubber pad 19 first contacts the detection plate 12, and the pressure sensor first detects the pressure. Then the arc-shaped spring 20 is slowly compressed to the minimum, and the pressure gradually increases during the process. Then, the pressure sensor can detect the pressure value throughout the entire process, further improving the detection efficiency.

[0051] For specific example three, please refer to Figure 1-12 On the basis of the first and second specific embodiments, two positioning grooves 28 are symmetrically provided on two opposite sides of the box body 1; a guide wheel 29 is slidingly provided on the inner wall of the positioning groove 28; T-shaped grooves 30 are symmetrically provided on the two opposite inner walls of the positioning groove 28; T-shaped slide rails 31 that slide in cooperation with the T-shaped groove 30 are symmetrically fixed on both sides of the guide wheel 29.

[0052] Specifically, a baffle 32 is fixed between two opposite inner walls of the positioning slot 28 ; sponges 33 are fixed to the bottom surface of the baffle 32 and the side surfaces of the guide wheel 29 ; and a limiting plate 34 is fixed to the side surfaces of the guide wheel 29 .

[0053] Furthermore, a first lifting ear 35 is symmetrically fixed on the side surface of the U-shaped plate 25; two second lifting ears 36 are fixed on the side surface of the hook 26; a steel wire rope 37 is connected between the first lifting ear and the second lifting ear 36; one end of the steel wire rope 37 is fixed on the first lifting ear 35, and the other end thereof passes through the guide wheel 29 and is fixed on the second lifting ear 36.

[0054] The operating process of this embodiment is as follows: when the device is not in use, the guide wheel 29 is in the lowest position, the wire rope 37 is in a relaxed state, the hook 26 is used to hook the weight, and then the guide wheel 29 is slid upward along the inner wall of the positioning slide groove 28, so that the T-shaped slide rail 31 slides upward along the T-shaped slide groove 30 until the guide wheel 29 is close to the baffle 32. At this time, the sponge 33 is pressed to protect the side surface of the guide wheel 29, and then the guide wheel 29 is fixed in the highest position to prevent the guide wheel 29 from sliding downward. When the guide wheel 29 is in the highest position, the wire rope 37 is tightened. At this time, the wire rope 37 adjusts the hook 26 to a fixed state and can no longer rotate. The hook 26 is fixed and limited, thereby improving stability.

[0055] In this embodiment, when the device is not in use, the guide wheel 29 is in the lowest position, the wire rope 37 is in a relaxed state, and the hook 26 can change its angle. When hooking a heavy object, the guide wheel 29 is fixed at the highest position. At this time, the wire rope 37 is tightened and the hook 26 is adjusted to a fixed state and can no longer be rotated. As a result, the hook 26 is fixed and limited, which improves stability and reduces the risk factor.

[0056] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0057] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A crane hook fixing assembly, comprising a housing (1); a detection assembly (38) is provided inside the housing (1); and is characterized in that: The detection assembly (38) comprises a first rotating shaft (2) and a second rotating shaft (3) respectively rotating on two opposite inner walls of the box body (1); the first rotating shaft (2) and the second rotating shaft (3) are coaxial; A first arc-shaped pressing plate (4) is fixed to the circumferential side surfaces of the first rotating shaft (2) and the second rotating shaft (3); a first gear (5) is fixed to one end of the first rotating shaft (2); and a second gear (6) is fixed to one end of the second rotating shaft (3); The inner bottom surface of the box body (1) is provided with a detection slide groove (7); the inner wall of the detection slide groove (7) is provided with a sliding plate (8) for sliding; the surface of the sliding plate (8) is fixed with a connecting plate (9); A first rack (10) and a second rack (11) are fixed on the surface of the connecting plate (9); the first rack (10) is meshed with the first gear (5); the second rack (11) is meshed with the second gear (6); A detection plate (12) is fixed on the inner top surface of the box body (1) between the two first arc-shaped pressing plates (4); a pressure sensor is provided inside the detection plate (12).

2. A crane hook fixing assembly according to claim 1, characterized in that: A T-shaped limiting rail (13) coaxial with the first gear (5) is fixed on the side surface; a T-shaped limiting groove (14) coaxial with the second gear (6) is provided on the side surface; the T-shaped limiting rail (13) and the T-shaped limiting groove (14) are slidably matched.

3. A crane hook fixing assembly according to claim 2, characterized in that: A mounting plate (15) is fixed to the side of the first arc-shaped pressing plate (4); a second arc-shaped pressing plate (16) is fixed to the side of the mounting plate (15); and an arc-shaped groove (17) is provided on the side of the second arc-shaped pressing plate (16) and is adapted to the circumferential side surfaces of the first rotating shaft (2) and the second rotating shaft (3).

4. A crane hook fixing assembly according to claim 3, characterized in that: An arc-shaped slide plate (39) is provided between the first arc-shaped pressing plate (4) and the second arc-shaped pressing plate (16); two protective plates (18) are symmetrically fixed on the side of the arc-shaped slide plate (39); a rubber pad (19) is fixed on the side of one of the protective plates (18); and an arc-shaped spring (20) is connected between the other protective plate (18) and the mounting plate (15).

5. A crane hook fixing assembly according to claim 4, characterized in that: The arc-shaped slide plate (39) is symmetrically fixed with a T-shaped guide rail (21) on its side; the first arc-shaped pressing plate (4) and the second arc-shaped pressing plate (16) are both provided with a T-shaped guide groove (22) that slides with the T-shaped guide rail (21); and a plurality of return springs (23) are fixed between the connecting plate (9) and the inner bottom surface of the box body (1).

6. A crane hook fixing assembly according to claim 5, characterized in that: An adjusting block (24) is fixed on the bottom surface of the slide plate (8); a U-shaped plate (25) is rotatably provided on the side surface of the adjusting block (24); a hook (26) is fixed on the bottom surface of the U-shaped plate (25); and a lock buckle (27) is rotatably provided on the side surface of the hook (26).

7. A crane hook fixing assembly according to claim 6, characterized in that: Two positioning slots (28) are symmetrically provided on two opposite side surfaces of the box body (1); guide wheels (29) are slidably provided on the inner walls of the positioning slots (28); T-shaped slots (30) are symmetrically provided on the two opposite inner walls of the positioning slots (28); T-shaped slide rails (31) that are slidably matched with the T-shaped slots (30) are symmetrically fixed on both sides of the guide wheels (29).

8. A crane hook fixing assembly according to claim 7, characterized in that: A baffle (32) is fixed between two opposite inner walls of the positioning slot (28); a sponge (33) is fixed to the bottom surface of the baffle (32) and the peripheral side surface of the guide wheel (29); and a limiting plate (34) is fixed to the peripheral side surface of the guide wheel (29).

9. The crane hook fixing assembly according to claim 8, characterized in that: A first lifting lug (35) is symmetrically fixed on the side surface of the U-shaped plate (25); two second lifting lugs (36) are fixed on the side surface of the hook (26); a steel wire rope (37) is connected between the first lifting lug and the second lifting lug (36); one end of the steel wire rope (37) is fixed on the first lifting lug (35), and the other end thereof passes through the guide wheel (29) and is fixed on the second lifting lug (36).

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