CN213445792U

CN213445792U - Anti-falling lifting hook and hoisting equipment with same

Info

Publication number: CN213445792U
Application number: CN202022457842.3U
Authority: CN
Inventors: 徐皓; 赵其松
Original assignee: Chongqing Vocational Institute of Engineering
Current assignee: Chongqing Vocational Institute of Engineering
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-15
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to the technical field of machinery, in particular to an anti-drop lifting hook and a lifting device with the anti-drop lifting hook, wherein the anti-drop lifting hook comprises a spring base and an anti-drop assembly, the anti-drop assembly comprises a hydraulic push rod rotatably installed at the upper end of the spring base, the middle part of the hydraulic push rod is connected with the spring base through a detachable spring, and the output end of the hydraulic push rod is provided with a baffle; the utility model discloses a hydraulic pressure push rod drive baffle extends under hydraulic pressure push rod's drive to with the contact of linkage inside wall, and then inject the object that hangs in the linkage and do not deviate from the linkage, change into present semi-automatic mode with former pure manual, the workman operation is convenient, need not whole change, it is simple and convenient and the fault-tolerant rate is higher, the spring that has solved current mousing-hook device who is used for the lifting hook exists and needs often whole change, and need the manual driven problem that carries on of staff, thereby the practicality of anticreep lifting hook has been improved.

Description

Anti-falling lifting hook and hoisting equipment with same

Technical Field

The utility model belongs to the technical field of machinery, specifically be an anticreep lifting hook and have hoisting equipment of this anticreep lifting hook.

Background

The crane is used as common mechanical equipment, can be used for moving objects, and can be seen on a series of large-scale object sites which are difficult to move manually, such as engineering operation sites, wharfs, rescue sites and the like. The safe and effective work of the crane can not leave the lifting hook, but the lifting hook of the crane has no anti-unhooking, the rope unhooking phenomenon easily occurs in the operation process, the heavy object falls, and therefore safety accidents are caused, and the safe and stable operation of the crane can not be ensured.

At present, the lifting hook can work safely and effectively without separating from the unhooking prevention device, so that the importance of the unhooking prevention device can be seen. In the current market, the traditional unhooking prevention device for the lifting hook mostly adopts a spring to connect a baffle plate to form an unhooking prevention structure. However, the above prior art solutions have the following drawbacks: the current spring that is used for the mousing-hook device of lifting hook causes the loss easily, easily became invalid and disconnected spring, and the baffle easily receives the collision deformation to become invalid, and live time is shorter, can't dismantle, needs often whole change, increases the maintenance cost to the spring torsion of large-scale lifting hook is great, needs the staff to drive manually, and is inconvenient during the use, influences work production efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide an anticreep lifting hook to there is the spring that needs often whole change in the current anticreep hook device who is used for the lifting hook that proposes to solve among the above-mentioned background art, and needs the staff to drive manually, and then influences work production efficiency's problem.

The embodiment of the utility model provides a realize like this, an anticreep lifting hook, including the lifting hook main part, lifting hook main part tip sets up the portion of hanging for hanging the crooked shape of object, the anticreep lifting hook still includes:

the spring base is fixedly arranged at one end of the hook main body, which is far away from the hanging part;

the anti-falling assembly is arranged on the spring base and comprises a hydraulic push rod rotatably mounted at the upper end of the spring base, the hydraulic push rod can rotate around the joint of the spring base and the hydraulic push rod, the middle part of the hydraulic push rod, facing one side of the spring base, is connected with the spring base through a detachable spring, and the detachable spring is used for returning the hydraulic push rod to the original position through the self elasticity of the detachable spring after the hydraulic push rod rotates around the joint of the spring base and the hydraulic push rod; and

the baffle is arranged at the output end of the hydraulic push rod and can be driven by the hydraulic push rod to extend so as to be in contact with the inner side wall of the hanging part, and therefore an object hung on the hanging part is limited not to be separated from the hanging part.

Preferably, the hydraulic rod outside still is provided with can dismantle protective sleeve, can dismantle the protective sleeve outside with can dismantle the spring and carry out detachable connections, can dismantle the spring the other end with spring base carries out detachable connections, can dismantle the spring can hydraulic rod rotates around spring base and hydraulic rod's junction to the spring can be dismantled in the compression and drive the baffle not with hang the portion inside wall contact back, promote through the self elasticity that can dismantle the spring hydraulic rod rotates in order to reply to the normal position, so that the baffle with hang the portion inside wall contact, and then inject the object that hangs in the portion and do not break away from hang the portion.

In another embodiment of the present invention, there is provided a hoisting device, including the above anti-drop lifting hook, the hoisting device further includes: the arm suspends in midair, the one end of suspending in midair the arm is provided with the installation department, lifting hook main part upper end be provided with be used for with the installation department carries out the connecting portion of connecting, through being connected connecting portion and installation department, and then can realize the installation of anticreep lifting hook moves through suspending in midair arm drive anticreep lifting hook, and then can realize the removal of object.

The utility model has the advantages that:

compared with the prior art, the anti-drop lifting hook provided by the embodiment of the utility model comprises a spring base and an anti-drop component, wherein the anti-drop component comprises a hydraulic push rod rotatably installed at the upper end of the spring base, one side of the middle part of the hydraulic push rod, which faces the spring base, is connected with the spring base through a detachable spring, the output end of the hydraulic push rod is provided with a baffle plate, the baffle plate can be extended under the driving of the hydraulic push rod to be contacted with the inner side wall of the suspension part, the anti-drop lifting hook is extended under the driving of the hydraulic push rod through the hydraulic push rod to be contacted with the inner side wall of the suspension part, so as to limit an object suspended on the suspension part not to be separated from the suspension part, change the original safety mode, change the former pure manual mode into the current semi-automatic mode, and have convenient operation, also can dismantle and fall the detachable spring and change into manual opening into, need not whole change, simple and convenient and the fault-tolerant rate is higher, has solved the spring existence that has the mousing-hook device of present being used for the lifting hook and has need often whole change to need the staff to drive manually, and then influence work production efficiency's problem, can adapt to actual construction demand, thereby improved the practicality of anticreep lifting hook.

Drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

Fig. 1 is a schematic structural view of an anti-drop hook according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a hoisting apparatus according to another embodiment of the present invention.

Fig. 3 is a schematic view of a connection relationship between a suspension arm, an articulated frame and a mounting seat in a hoisting apparatus according to another embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a suspension arm in a hoisting apparatus according to another embodiment of the present invention.

Fig. 5 is a schematic structural view of a bracket in a hoisting apparatus according to another embodiment of the present invention.

In the figure: 1-a hydraulic push rod; 2-a spring base; 3-a detachable spring; 4-a detachable protective sleeve; 5-a baffle plate; 6-a fixing piece; 7-a connecting part; 8-an anti-drop component; 9-a suspension portion; 10-a hook body; 11-a mounting portion; 12-a suspension arm; 13-a hinged frame; 14-a telescoping mechanism; 15-a mounting seat; 16-a scaffold; 17-a turning part; 18-a load bearing seat; 19-hydraulic lifting rod; 20-an anti-slip base; 21-a first sleeve; 22-a drive ram; 23-second sleeve.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly and clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments obtained by persons skilled in the art based on the embodiments in the present application without any creative work belong to the protection scope of the present application.

In the description of the present invention, it should be understood that unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The following detailed description is provided for the specific embodiments of the present invention.

As shown in fig. 1, for the structure diagram of the anti-drop lifting hook provided by an embodiment of the present invention, the anti-drop lifting hook includes a lifting hook main body 10, a suspension portion 9 of a curved shape for suspending an object is provided at an end of the lifting hook main body 10, and the anti-drop lifting hook further includes:

the spring base 2 is fixedly arranged at one end of the hook main body 10 far away from the hanging part 9;

the anti-falling component 8 is arranged on the spring base 2, the anti-falling component 8 comprises a hydraulic push rod 1 rotatably mounted at the upper end of the spring base 2, the hydraulic push rod 1 can rotate around the joint of the spring base 2 and the hydraulic push rod 1, one side of the middle part of the hydraulic push rod 1, which faces the spring base 2, is connected with the spring base 2 through a detachable spring 3, and the detachable spring 3 is used for returning the hydraulic push rod 1 to the original position through the self elasticity of the detachable spring 3 after the hydraulic push rod 1 rotates around the joint of the spring base 2 and the hydraulic push rod 1;

and the baffle 5 is arranged at the output end of the hydraulic push rod 1, and the baffle 5 can be driven by the hydraulic push rod 1 to extend to be in contact with the inner side wall of the hanging part 9, so that an object hung on the hanging part 9 is limited not to be separated from the hanging part 9.

The embodiment of the utility model provides an in, through hydraulic rod 1's drive, baffle 5 can extend under hydraulic rod 1's drive, with 9 inside wall contacts of linkage, and then inject the object that hangs on linkage 9 and do not break away from linkage 9 has changed original insurance mode, changes former pure manual into present semi-automatic mode, through establishing anticreep subassembly 8 at lifting hook main part 10 top, connects by a detachable hydraulic rod 1 outward, and baffle 5 (square thick iron sheet) is connected at hydraulic rod 1 top, and then the fixed inside recess that blocks lifting hook main part 10 to play the guard action.

The utility model discloses an in the example, when anticreep subassembly 8 was opened, can dismantle spring 3 can auto-eject, and then can realize that anticreep subassembly 8 and baffle 5 reply to the normal position through the self elasticity of dismantling spring 3, the workman's operation is convenient, even can dismantle spring 3 and damage, also can dismantle and to dismantle spring 3 and change into manual opening, simple and convenient and the fault-tolerant rate is higher.

Further, as the utility model discloses a preferred embodiment, the 1 outside of hydraulic pressure push rod still is provided with can dismantle protective sleeve 4, can dismantle protective sleeve 4 the outside with can dismantle spring 3 and carry out detachable connections, can dismantle spring 3 the other end with spring base 2 carries out detachable connections, can dismantle spring 3 can hydraulic pressure push rod 1 rotates around spring base 2 and hydraulic pressure push rod 1's junction to the compression can dismantle spring 3 and drive baffle 5 not with hang 9 inside walls contact back, promote through the self elasticity of dismantling spring 3 hydraulic pressure push rod 1 rotates in order to reply to the normal position, so that baffle 5 with hang 9 inside walls contact, and then inject the object that hangs on the portion of hanging 9 and do not break away from hang portion 9.

In the embodiment of the present invention, specifically, the object to be hung is connected by a hanging rope, the hanging rope is hung on the hanging part 9 with a curved shape, or the hanging part 9 is hung by moving the anti-dropping hook, due to the self weight of the object, the hanging rope can drive the hydraulic push rod 1 to rotate around the connection between the spring base 2 and the hydraulic push rod 1 and drive the baffle 5 not to contact with the inner side wall of the hanging part 9 during the hanging process, then the hanging rope can move to the right side of the arc opening inside the hanging part 9 through the opening formed by the baffle 5 and the hanging part 9, and further, the hydraulic push rod 1 is pushed to rotate by the self elasticity of the detachable spring 3 to return to the original position, so that the baffle 5 contacts with the inner side wall of the hanging part 9 again, thereby limiting the object hung on the hanging part 9 not to be separated from the hanging part 9, thereby accomplish the auto-lock operation, make the anticreep lifting hook forms self-locking type anticreep lifting hook, need not the manual work and promotes in order to accomplish the auto-lock to reduce workman's work load.

Further, as the utility model discloses a preferred embodiment, the dismantled and assembled mounting 6 that is provided with of hydraulic pressure push rod 1 and spring holder 2's junction is used for supplying hydraulic pressure push rod 1 rotates around spring holder 2 and hydraulic pressure push rod 1's junction, and prescribes a limit hydraulic pressure push rod 1 does not take place to break away from with spring holder 2.

The embodiment of the utility model provides an in, supply through mounting 6 hydraulic rod 1 rotates around spring base 2 and hydraulic rod 1's junction, and injects hydraulic rod 1 does not take place to break away from with spring base 2, in order to guarantee the stability of anticreep lifting hook at the during operation.

The utility model discloses an in an example, mounting 6 can adopt the screw rod, and both ends are installed through the bolt on spring holder 2, hydraulic pressure push rod 1's tip sets up the trompil in order to pass the screw rod, and then can supply hydraulic pressure push rod 1 rotates around spring holder 2 and hydraulic pressure push rod 1's junction.

As shown in fig. 2 to 5, an embodiment of the present invention further provides a lifting apparatus, including the above anti-drop hook, the lifting apparatus further includes: the suspension arm 12, the one end of suspension arm 12 is provided with installation department 11, the lifting hook main part 10 upper end be provided with be used for with connecting portion 7 that installation department 11 carries out the connection.

The embodiment of the utility model provides an in, through being connected connecting portion 7 with installation department 11, and then can realize the installation of anticreep lifting hook moves through suspending in midair 12 drive anticreep lifting hooks in midair, and then can realize the removal of object.

The utility model discloses an in an example, can adopt current connected mode to fix between connecting portion 7 and the installation department 11, for example, can adopt nut, buckle, screw rod etc. in this example, it is preferred, can adopt the cooperation of nut and bolt to use, of course, also can adopt welding mode to connect, can also adopt the rope to connect, can be according to the machine installation environment and do the adaptability adjustment.

Further, as the utility model discloses a preferred embodiment, hoisting equipment still includes support 16, be provided with mount pad 15 on the support 16, articulated frame 13 is installed to mount pad 15 upper end, articulated frame 13 with suspend in midair arm 12 and keep away from the one end of installation department 11 is articulated, mount pad 15 side-mounting has telescopic machanism 14, telescopic machanism 14's output with it connects to suspend in midair arm 12, just telescopic machanism 14's output with the junction of suspending in midair arm 12 is located articulated frame 13 with suspend in midair arm 12's articulated left side of department.

In the embodiment of the present invention, the telescopic mechanism 14 drives the suspension arm 12 to wind the hinge frame 13 and the hinge of the suspension arm 12 are rotated, so as to drive the anti-dropping hook to rotate, thereby completing the lifting operation of the object.

Further, as a preferred embodiment of the present invention, the bracket 16 includes:

the bearing seat 18 is used for installing the installation seat 15, a plurality of hydraulic lifting rods 19 are uniformly arranged at the lower end of the bearing seat 18, and the hydraulic lifting rods 19 are used for driving the bearing seat 18 to move up and down so as to drive the anti-falling lifting hook to move up and down, so that the lifting height of an object can be adjusted;

and one end of the antiskid base 20 is installed at the lower end of the hydraulic lifting rod 19 and is used for preventing the hoisting equipment from skidding with the ground during working.

The embodiment of the utility model provides an in, through the drive of hydraulic lifting rod 19 bearing seat 18 reciprocates, and then drives the anticreep lifting hook reciprocates to can adjust the height of lifting by crane to the object, simultaneously, prevent through skid-resistant base 20 hoisting equipment takes place to skid at during operation and ground, has effectively improved the security of working process.

Further, as the utility model discloses a preferred embodiment, support 16 with be provided with rotating part 17 between the mount pad 15, rotating part 17 is used for driving suspension arm 12 rotates, in order to adjust the anticreep lifting hook is to the angle of lifting by crane of object at the horizontal plane.

The utility model discloses an in an example, rotation portion 17 can adopt current motor to drive, rotates through motor drive rotation portion 17, and then drives suspension arm 12 rotates, in order to adjust the anticreep lifting hook is to the angle of lifting by crane of object at the horizontal plane.

Further, as a preferred embodiment of the present invention, the suspension arm 12 includes a first sleeve 21, a driving rod 22 and a second sleeve 23, the first sleeve 21 is connected to the hinge frame 13, the first sleeve 21 is sleeved on the second sleeve 23, one end of the driving rod 22 is disposed outside the first sleeve 21, and an output end of the driving rod 22 is connected to the second sleeve 23.

In the embodiment of the present invention, the second sleeve 23 is driven by the driving rod 22 to move in the horizontal direction relative to the first sleeve 21, so that the arm 12 can be extended and retracted, and the object can be moved in the horizontal direction 3.

The utility model discloses an implement the principle and do: the embodiment of the utility model provides an anticreep lifting hook, including spring bracket 2 and anticreep subassembly 8, anticreep subassembly 8 includes to rotate installs at the hydraulic rod 1 of spring bracket 2 upper end, one side of hydraulic rod 1 middle part towards spring bracket 2 is connected with spring bracket 2 through can dismantle spring 3, the output of hydraulic rod 1 is provided with baffle 5, baffle 5 can extend under the drive of hydraulic rod 1, this anticreep lifting hook extends under the drive of hydraulic rod 1 through hydraulic rod 1's drive baffle 5, in order to with hang 9 inside wall contact, and then the object that restricts to hang on hang 9 does not break away from hang 9, has changed original insurance mode, changes former pure manual into present semi-automatic mode, through establishing anticreep subassembly 8 at lifting hook main part 10 top, connect by a detachable hydraulic push rod 1 outward, baffle 5 is connected at 1 top of hydraulic push rod, and then the fixed inside recess that blocks lifting hook main part 10 to play the guard action. And, when anticreep subassembly 8 was opened, detachable spring 3 can pop out voluntarily, and then can realize that anticreep subassembly 8 and baffle 5 reply to the normal position through detachable spring 3's self elasticity, and simple and convenient and fault-tolerant rate is higher.

Also, when the lifting device stops working, the theme is in a closed state. When the hoisting equipment needs to hook a heavy object during working, a worker opens the theme switch to enable the hydraulic push rod 1 to retract, so that the thick iron sheet at the top of the hydraulic push rod 1 can be smoothly separated from the groove, at the moment, the detachable spring 3 works at the bottom of the hydraulic push rod 1, the theme automatically bounces upwards and is in a safety opening state, then the heavy object is hung on the hanging part 9, after the heavy object is hung correctly and safely, the theme is pressed downwards to enable the thick iron sheet on the safety to enter the groove at the bottom of the hanging part 9, at the moment, the hydraulic push rod 1 is opened to extend out until the heavy object is completely clamped and cannot be bounced, and therefore the purpose of anti-unhooking

It is noted that advantages of the subject matter include:

1) convenient operation

The novel theme does not need manual operation completely when the unhooking prevention safety is opened, only the switch of the hydraulic push rod 1 needs to be opened to enable the push rod to retract, the unhooking prevention safety can be automatically popped out, and the operation time is greatly saved. When the heavy object is hung and the safety device (the anti-falling assembly 8) needs to function, the baffle 5 is pressed down to the bottom of the groove, then the hydraulic push rod 1 is started to enable the hydraulic rod to extend out until the hydraulic rod is clamped, and the safety device can play a role in preventing unhooking.

2) Higher safety performance

When the safety device is started, the push rod of the hydraulic push rod 1 extends out, the clamping can be conducted to the maximum extent, once the clamping is conducted, the clamping is difficult to disengage, the unhooking phenomenon can be effectively prevented, and therefore the safety performance is greatly increased. Especially for large-scale lifting hooks, the unhooking prevention is very important, and the crane can safely and effectively complete the lifting operation task by using the design.

3) Higher fixing strength

The original hook anti-unhooking design is easy to move after being used for a long time, and the hook anti-unhooking failure can be caused, so that the safety function cannot be achieved. The theme of the design is that once the fixing is started, the movement is difficult to generate, and the fixing performance is better than that of the original unhooking prevention design.

4) Subject changeable to self-locking

When the theme self-locking device is installed, the pushing angle of the hydraulic push rod 1 is determined, then the hydraulic push rod is fixed at the upper fixing part 6, the telescopic length of the hydraulic push rod 1 is determined, so that a rope enters the hook and is not influenced when the hydraulic push rod is hooked with a heavy object, then the detachable spring 3 is cancelled, the theme self-locking can be realized, and the theme is fixed without manual pressing.

5) More convenient for maintenance

This design simple structure to whole adopt can dismantle the original paper, in case the problem appears can investigate and find problem place and solve at once. The hydraulic push rod 1 is detachable, long in service life and not easy to damage, and can be detached, maintained or replaced immediately once damaged. This design can be dismantled spring 3 and adopt detachable spring, and it is convenient to dismantle the change to can freely select the height of bounceing that anticreep subassembly 8 is controlled to the detachable spring 3 of different elasticity limits, thereby make the operation more convenient.

The appliances presented in this document can be connected to an external master controller, and the master controller can be a conventionally known device for controlling a computer or the like.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

It is further noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The phrase "comprising a defined element does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element. The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete joining mode of each part all can adopt conventional means such as ripe bolt, rivet, welding among the prior art, does not detailed here again.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an anticreep lifting hook, includes lifting hook main part (10), lifting hook main part (10) tip sets up to be used for hanging the curved shape's of object portion of hanging (9), its characterized in that, the anticreep lifting hook still includes:

the spring base (2) is fixedly arranged at one end, far away from the hanging part (9), of the hook main body (10);

the anti-falling component (8) is arranged on the spring base (2), the anti-falling component (8) comprises a hydraulic push rod (1) which is rotatably installed at the upper end of the spring base (2), the hydraulic push rod (1) can rotate around the joint of the spring base (2) and the hydraulic push rod (1), one side, facing the spring base (2), of the middle of the hydraulic push rod (1) is connected with the spring base (2) through a detachable spring (3), and the detachable spring (3) is used for restoring the hydraulic push rod (1) to the original position through the self elasticity of the detachable spring (3) after the hydraulic push rod (1) rotates around the joint of the spring base (2) and the hydraulic push rod (1);

the baffle (5) is arranged at the output end of the hydraulic push rod (1), and the baffle (5) can be driven by the hydraulic push rod (1) to extend to be in contact with the inner side wall of the hanging part (9), so that an object hung on the hanging part (9) is limited not to be separated from the hanging part (9).

2. The anti-drop lifting hook according to claim 1, characterized in that a detachable protective sleeve (4) is further arranged on the outer side of the hydraulic push rod (1), the outer side of the detachable protective sleeve (4) is detachably connected with the detachable spring (3), the other end of the detachable spring (3) is detachably connected with the spring base (2), the detachable spring (3) can rotate around the joint of the spring base (2) and the hydraulic push rod (1) to compress the detachable spring (3) and drive the baffle (5) not to contact with the inner side wall of the hanging part (9), and then the hydraulic push rod (1) is pushed to rotate to return to the original position through the self elasticity of the detachable spring (3) so that the baffle (5) contacts with the inner side wall of the hanging part (9), thereby preventing the object suspended on the suspension part (9) from being separated from the suspension part (9).

3. The anti-drop lifting hook according to claim 1, characterized in that a fixing part (6) is detachably arranged at the joint of the hydraulic push rod (1) and the spring base (2) and is used for enabling the hydraulic push rod (1) to rotate around the joint of the spring base (2) and the hydraulic push rod (1) and limiting the hydraulic push rod (1) and the spring base (2) not to be separated.

4. A lifting device comprising an anti-drop hook as claimed in any one of claims 1 to 3, the lifting device further comprising: suspend arm (12) in the palm, the one end of suspending in the palm of the hand (12) is provided with installation department (11), lifting hook main part (10) upper end be provided with be used for with connecting portion (7) that installation department (11) are connected.

5. The hoisting equipment of claim 4, further comprising a support (16), wherein the support (16) is provided with a mounting seat (15), an articulated frame (13) is mounted at the upper end of the mounting seat (15), the articulated frame (13) is articulated with one end of the suspension arm (12) far away from the mounting portion (11), a telescopic mechanism (14) is mounted on the side of the mounting seat (15), the output end of the telescopic mechanism (14) is connected with the suspension arm (12), and the connection position of the output end of the telescopic mechanism (14) and the suspension arm (12) is located on the left side of the articulation position of the articulated frame (13) and the suspension arm (12).

6. Hoisting device as claimed in claim 5, characterized in that said bracket (16) comprises:

the bearing seat (18) is used for mounting the mounting seat (15), a plurality of hydraulic lifting rods (19) are uniformly arranged at the lower end of the bearing seat (18), and the hydraulic lifting rods (19) are used for driving the bearing seat (18) to move up and down;

and one end of the antiskid base (20) is arranged at the lower end of the hydraulic lifting rod (19).

7. The hoisting device as claimed in claim 5, wherein a rotating part (17) is provided between the bracket (16) and the mounting seat (15), and the rotating part (17) is used for driving the suspension arm (12) to rotate so as to adjust the hoisting angle of the object on the horizontal plane by the anti-drop hook.

8. Hoisting device as claimed in claim 5, characterized in that said suspension arm (12) comprises a first sleeve (21), a driving push rod (22) and a second sleeve (23), said first sleeve (21) being connected to said articulated frame (13), said first sleeve (21) being fitted over said second sleeve (23), one end of said driving push rod (22) being arranged outside said first sleeve (21), the output end of said driving push rod (22) being connected to said second sleeve (23).