CN218058133U

CN218058133U - Unhooking prevention device for lifting rope

Info

Publication number: CN218058133U
Application number: CN202220840996.7U
Authority: CN
Inventors: 林雨晨; 林铁军
Original assignee: Sichuan Beixun Technology Co ltd
Current assignee: Sichuan Beixun Technology Co ltd
Priority date: 2022-04-12
Filing date: 2022-04-12
Publication date: 2022-12-16
Anticipated expiration: 2032-04-12

Abstract

The utility model relates to a hoist and mount auxiliary assembly technical field, the utility model provides a lifting rope mousing-hook device, mousing-hook device sets up on the lifting hook, keep off frame and operating mechanism including the anticreep, the anticreep keeps off the frame including the contact frame, two connecting rods and control assembly, two connecting rod parallel arrangement, two connecting rods articulate the both sides at the lifting hook respectively, the blind hole has still been seted up with the one end of lifting hook articulated department to the connecting rod is kept away from self, the contact frame is the constructional rod of U-shaped, the blind hole of connecting rod is inserted in the both ends adaptation of contact frame, control assembly sets up between connecting rod and contact frame, the control assembly is used for controlling the length that the blind hole of connecting rod was stretched into at the both ends of contact frame, contact frame and the contact of the point inner wall of colluding of lifting hook, operating mechanism sets up on the lifting hook, operating mechanism is used for controlling the rotation of connecting rod, two connecting rod synchronous rotations, the utility model provides a can be applicable to the great hoisting device's of thick lifting rope or size mousing-hook device.

Description

Unhooking prevention device for lifting rope

Technical Field

The utility model relates to a hoist and mount auxiliary device field, especially a lifting rope mousing-hook device.

Background

Hoisting refers to the installation of crane or hoisting mechanism to equipment, the general name of taking one's place, and hoisting is a many uses in large-scale object moving means, behind the lifting rope with large-scale article cover firm, hangs the lifting rope on hoist machine's lifting hook, shifts large-scale article through the activity of hoisting apparatus, and no matter which kind of hoisting apparatus all needs the hoist cable instrument when the jack-up, the hoist cable instrument commonly used generally has: steel wire ropes, nylon slings, hemp ropes, metal slings, and the like. However, in the working process of the crane, due to external factors such as wind and the like, a steel wire rope of the crane shakes, so that the unhooking phenomenon easily occurs, unhooking accidents occupy a large proportion in lifting injuries, and the personal safety and equipment safety are seriously threatened due to frequent occurrence of the unhooking accidents. And the reasonable reliable lifting hook anticreep device of installation, can fundamentally solve the emergence of this problem, personal and equipment safety in the guarantee production process, conventional lifting hook anticreep device will keep off the frame and articulate at the lifting hook opening part, the opening part that utilizes to keep off the frame and seal the lifting hook guarantees that the lifting rope can not deviate from by the lifting hook opening part, effect for guaranteeing anticreep device is stable, keep off the frame and can only let out the export of lifting hook through the inside pivoted mode of lifting hook, keep off frame itself and can shelter from lifting hook open-ended some space, the lifting rope or hoisting structure of use can be kept off the frame when thick and block, can't hoist and mount the operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's shortcoming, provide an anticreep hook device that can be applicable to thick lifting rope or the great hoist device of size.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a lifting rope mousing-hook device, mousing-hook device sets up on the lifting hook, including mousing-hook frame and operating mechanism, mousing-hook frame is including contact frame, two connecting rods and control assembly, two connecting rod parallel arrangement, two the connecting rod articulates respectively in the both sides of lifting hook, self and the articulated one end of locating of lifting hook have still been seted up to the connecting rod, contact frame is the constructional rod of U-shaped, contact frame's both ends adaptation inserts in the blind hole of connecting rod, control assembly sets up the connecting rod with between the contact frame, control assembly is used for control contact frame's both ends stretch into the length of the blind hole of connecting rod, contact frame and lifting hook collude sharp inner wall contact, operating mechanism sets up on the lifting hook, operating mechanism is used for control the rotation of connecting rod, two the connecting rod rotates in step.

Adopt above-mentioned technical scheme's effect to be, the user can control the length of the part that the contact frame stretches into the connecting rod through the control assembly to the length that the whole anticreep of adjustment kept off the frame, under original length, the contact frame can be blocked by colluding of lifting hook point, lets whole anticreep keep off the frame and can only overturn towards the lifting hook is inside, and the anticreep keeps off the frame and shortens the back, and the anticreep keeps off the frame and can not be blocked by lifting hook point, and the anticreep keeps off the frame and can overturn the lifting hook.

As the further improvement of above-mentioned scheme, the anticreep keeps off the frame still includes connecting gear, operating mechanism includes driving shaft and driven gear set, driven gear set is equipped with the stock of gear for linking the fixed cover of section, driven gear set rotates and sets up on the lifting hook, the driving shaft sets up in the lifting hook outside, the driving shaft rotates under the drive of motor, the driving shaft passes through the drive belt and drives driven gear set rotates, connecting gear still has set firmly connecting gear with the link of lifting hook, connecting gear with the driven gear set meshing.

The technical scheme on the market has the effect that the overturning position of the anti-falling blocking frame is controlled by the motor and a series of transmission mechanisms.

As the further improvement of above-mentioned scheme, anticreep keeps off frame still includes rotates the pad, it comprises the rubber material to rotate the pad, rotate the pad set up the lifting hook with connect between the gear, just rotate pad and lifting hook with connect the gear contact.

Adopt above-mentioned technical scheme's effect to do, rotate the pad setting between lifting hook and connecting gear, avoid the two mutual contact friction wearing and tearing.

As the further improvement of above-mentioned scheme, anticreep keeps off frame still includes only sliding sleeve and safety rope, two edge covers of buckling of contact frame are equipped with only sliding sleeve, only sliding sleeve comprises the rubber material, only sliding sleeve with the blind hole inner wall sliding contact of connecting rod, safety rope sets up the blind hole of connecting rod is inboard, safety rope one end is connected the blind hole bottom of connecting rod, safety rope's the other end is connected the tip of contact frame, safety rope's length weak point in the blind hole degree of depth of connecting rod.

The anti-slip sleeve has the advantages that the end of the contact frame and the inside of the blind hole of the connecting rod can be prevented from repeatedly rubbing and wearing by the anti-slip sleeve, and the safety rope can limit the movable distance of the contact frame in the blind hole of the connecting rod.

As the further improvement of above-mentioned scheme, anticreep keeps off frame still includes the protective sheath, two limit of buckling of contact frame are close to the department of buckling and still are provided with annular boss structure, the protective sheath comprises the rubber material, protective sheath one end is connected the connecting rod is kept away from the one end of self with the articulated department of lifting hook, the protective sheath other end is connected on the annular boss of contact frame, the protective sheath is established the contact frame stretches into the pole body outside of the blind hole of connecting rod.

Adopt above-mentioned technical scheme's effect to do, the protective sheath can avoid the lifting rope to be cliied by the department of buckling contact back of connecting rod and contact frame, avoids it to be extrudeed wearing and tearing repeatedly.

As a further improvement of the above scheme, the control assembly comprises an installation rod and a rotating rod, two ends of the installation rod are respectively connected with the middle of the connecting rod, the installation rod is not in contact with the lifting hook, the middle of the installation rod is further provided with a sleeve, an internal thread is further arranged on the inner wall of the sleeve, one end of the rotating rod is rotatably arranged at the middle of the contact frame, a thread is further arranged on the outer wall of the rotating rod, the rotating rod is not in contact with the lifting hook, the rotating rod is parallel to the connecting rod, and the rotating rod is in threaded connection with the sleeve.

The effect of the technical scheme on the market is that the rotating rod rotates to change the length of the rotating rod in the sleeve, so that the contact control frame extends into the blind hole of the connecting rod, and the length of the whole anti-falling blocking frame is controllable.

As a further improvement of the above scheme, the control assembly further comprises a spring and an auxiliary positioning block, the spring and the auxiliary positioning block are arranged inside the sleeve, one end of the spring is connected to the end of the rotating rod, the other end of the spring is connected to the auxiliary positioning block, the auxiliary positioning block is rotatably arranged at the bottom of the sleeve, and a convex part used for limiting the auxiliary positioning block is further arranged on the inner wall of the sleeve.

The effect of adopting above-mentioned technical scheme does, and spring one end is connected at the bull stick tip, and the spring other end is connected on the assistance-localization real-time piece, and the spring can be dragged and live the bull stick, avoids the bull stick to break away from the sleeve, also can avoid the bull stick excessively to stretch into the sleeve simultaneously, and assistance-localization real-time board lets the whole bull stick that can follow of spring rotate.

As the further improvement of above-mentioned scheme, anticreep keeps off frame still includes the replacement pad, contact frame and lifting hook collude sharp contact position and still be provided with the lifting hook and collude the sunk structure of sharp adaptation, the replacement pad pastes and is in the sunk structure department of contact frame, replace pad and lifting hook contact.

Adopt above-mentioned technical scheme's effect to be, the replacement pad replaces contact frame and hook point contact, avoids contact frame wearing and tearing.

The utility model has the advantages of it is following:

the utility model discloses in the use, the anticreep baffle can be stable be blocked by the lifting hook prong in carrying out normal hoist and mount operation in-process, effectively avoid the emergence of the incident of unhook, when the hoist and mount rope that needs hoist or hoisting structure size is great, the contact frame can go deep into in the connecting rod, the whole length of anticreep fender frame shortens, the anticreep fender frame can overturn towards the direction of keeping away from the lifting hook, expose whole lifting hook opening, avoid lifting rope or hoisting structure to be blocked by self, application scope is wider, easily promote; adopt the upset of motor control anticreep baffle frame, let the user can the one hand accomplish the control process of anticreep baffle, the other hand of user can whole journey control live by the hoist and mount material, promotes the security of hoist and mount process.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the anti-separation frame of the present invention;

fig. 3 is a schematic bottom view of the contact frame of the present invention;

in the figure: 1-lifting hook, 3-mounting rod, 4-rotating rod, 201-contact frame, 202-connecting rod, 203-connecting gear, 204-rotating pad, 205-sliding stopping sleeve, 206-safety rope, 207-protective sleeve, 208-replacement pad, 301-sleeve, 501-spring and 502-positioning block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. While the components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations, it should be understood that the terms "upper," "lower," "front," "rear," "inner," "outer," and the like are used in the description of the invention and are based on the orientations and positional relationships illustrated in the figures and are used for convenience in describing the invention and to simplify the description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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, an element defined by the phrase "comprising a … …" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following description.

As shown in fig. 1-3, a lifting rope unhooking prevention device, unhooking prevention device sets up on lifting hook 1, including anticreep fender frame and operating mechanism, anticreep fender frame includes contact frame 201, two connecting rods 202 and control assembly, two connecting rod 202 parallel arrangement, two connecting rod 202 articulates respectively in lifting hook 1's both sides, connecting rod 202 keeps away from self and lifting hook 1 articulated one end and has still seted up the blind hole, contact frame 201 is the structure pole of U-shaped, the both ends adaptation of contact frame 201 inserts in the blind hole of connecting rod 202, control assembly sets up connecting rod 202 with between the contact frame, control assembly is used for control the both ends of contact frame 201 stretch into the length of the blind hole of connecting rod 202, contact frame 201 and lifting hook 1's the sharp inner wall contact, operating mechanism sets up on lifting hook 1, operating mechanism is used for control the rotation of connecting rod 202, two connecting rod 202 synchronous rotation, the user can manipulate the length of the part that contact frame stretches into the connecting rod through control assembly to adjust the length of whole anticreep fender frame, lifting hook length down, contact frame is blocked by lifting hook 1's point, and lifting hook 1's the lifting hook can only be applicable to the lifting hook 1 internal dimension that the lifting hook's that the lifting hook can not prevent the lifting hook 1 from breaking out of the wide-off fender needs, and can only be shortened, and the lifting hook 1, and can be applicable to the lifting hook 1, and the lifting hook structure upset operation is greatly, and the lifting hook 1, and can not be applicable to the lifting hook 1, and can not prevent the lifting hook 1, and prevent the lifting hook 1.

As a further improvement of the above scheme, the anti-disengagement frame further includes a connecting gear 203, the operating mechanism includes a driving shaft 601 and a driven gear set 602, the driven gear set 602 is a long rod provided with a gear for connecting a section of the fixed sleeve, the driven gear set 602 is rotatably provided on the hook 1, the driving shaft 601 is provided outside the hook 1, the driving shaft 601 is rotated under the driving of a motor, the driving shaft 601 drives the driven gear set 602 to rotate through a transmission belt, the connecting gear 203 is further fixedly provided at the connecting end of the connecting rod 202 and the hook 1, the connecting gear 203 is engaged with the driven gear set 602, the turning position of the anti-disengagement frame is controlled through the motor and a series of transmission mechanisms, the trouble of manual control is avoided, and meanwhile, a user can hold the material with one hand, thereby avoiding self-breaking and improving the safety of operation.

As the further improvement of above-mentioned scheme, the anticreep keeps off the frame still includes rotates pad 204, it comprises the rubber material to rotate pad 204, rotate pad 204 set up at lifting hook 1 with between the connecting gear 203, just rotate pad 204 with lifting hook 1 with connecting gear 203 contacts, rotates pad 204 and sets up between lifting hook 1 and connecting gear 203, avoids the two to contact friction and wear each other, extension device life.

As a further improvement of the above scheme, the anti-slip frame further includes a slip-stop sleeve 205 and a safety rope 206, the slip-stop sleeve 205 is sleeved on two bending edges of the contact frame 201, the slip-stop sleeve 205 is made of rubber, the slip-stop sleeve 205 is in sliding contact with the inner wall of the blind hole of the connecting rod 202, the safety rope 206 is disposed inside the blind hole of the connecting rod 202, one end of the safety rope 206 is connected to the bottom of the blind hole of the connecting rod 202, the other end of the safety rope 206 is connected to the end of the contact frame 201, the length of the safety rope 206 is shorter than the depth of the blind hole of the connecting rod 202, the slip-stop sleeve 205 can prevent repeated friction and abrasion between the end of the contact frame 201 and the blind hole of the connecting rod 202, meanwhile, the static friction force between the slip-stop sleeve 205 and the inner wall of the blind hole of the connecting rod 202 is large, the anti-slip baffle can be improved to maintain the structural stability effect of the length of the anti-slip sleeve, and the safety rope 206 can limit the movable distance of the contact frame 201 in the blind hole of the connecting rod 202, thereby preventing the contact frame 201 from being separated from the connecting rod 202.

As a further improvement of the above scheme, the anti-disengaging rack still includes protective sheath 207, two limit of buckling of contact frame 201 are close to the department of buckling and still are provided with annular boss structure, protective sheath 207 comprises the rubber material, protective sheath 207 one end is connected the connecting rod 202 is kept away from the one end of self and the articulated department of lifting hook 1, the protective sheath 207 other end is connected on the annular boss of contact frame 201, protective sheath 207 cover is established contact frame 201 stretches into the pole body outside of the blind hole of connecting rod 202, and protective sheath 207 can avoid the lifting rope to be cliied after being contacted by the department of buckling of connecting rod 202 and contact frame 201, avoids it to be extrudeed wear repeatedly, lets the lifting rope be difficult impaired.

As a further improvement of the above scheme, the control assembly includes an installation rod 3 and a rotating rod 4, two ends of the installation rod 3 are respectively connected with the middle of the connecting rod 202, the installation rod 3 is not in contact with the lifting hook 1, a sleeve 301 is further arranged at the middle of the installation rod 3, an internal thread is further arranged on the inner wall of the sleeve 301, one end of the rotating rod 4 is rotatably arranged at the middle of the contact frame 201, a thread is further arranged on the outer wall of the rotating rod 4, the rotating rod 4 is not in contact with the lifting hook 1, the rotating rod 4 and the sleeve 301 are axially parallel to the connecting rod 202, the rotating rod 4 is in threaded connection with the sleeve 301, and the rotating rod 4 is rotated to change the length of the self in the sleeve 301, so that the length of the contact frame 201 extending into the blind hole of the connecting rod 202 is controlled, the length of the whole anti-falling blocking frame is controllable, and the structural stability of the whole is improved.

As the further improvement of above-mentioned scheme, control assembly still includes spring 501 and assistance-localization real-time piece 502, spring 501 with assistance-localization real-time piece 502 sets up sleeve 301 is inboard, spring 501 one end is connected 4 tip on the bull stick, the spring 501 other end is connected on assistance-localization real-time piece 502, assistance-localization real-time piece 502 rotates and sets up sleeve 301 bobbin base, it is right still to be provided with on the sleeve 301 inner wall be used for assistance-localization real-time piece 502 spacing convex part, and spring 501 one end is connected at 4 tip on the bull stick, and the spring 501 other end is connected on assistance-localization real-time piece 502, and spring 501 can pull the bull stick, avoids the bull stick 4 to break away from the sleeve, also can avoid the bull stick 4 to excessively stretch into the sleeve simultaneously, guarantees that contact frame 201 both ends do not contact with the bottom of connecting rod 202 blind hole, prevents the two wearing and tearing, and assistance-localization real-time piece lets the spring whole can follow the bull stick and rotate, avoids the excessive distortion damage of spring 501.

As the further improvement of above-mentioned scheme, the anticreep keeps off the frame still includes replacement pad 208, contact frame 201 still is provided with 1 colludes sharp contact position of lifting hook and colludes the sunk structure of sharp adaptation with lifting hook 1, replacement pad 208 pastes contact frame 201's sunk structure department, replacement pad 208 and lifting hook 1 contact, replacement pad 208 replace contact frame 201 and the contact of hook point, avoid contact frame 208 wearing and tearing, can be quick change after replacement pad 208 damages, do not influence the normal work of device.

The present invention is not limited to the details of the embodiments in the above description, and any person skilled in the art can easily modify the technical solution of the present invention without departing from the scope of the technical solution of the present invention, or modify it into equivalent embodiments with equivalent modifications, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features. In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The utility model provides a lifting rope mousing-hook device, mousing-hook device sets up on lifting hook (1), its characterized in that, including mousing-hook frame and operating mechanism, mousing-hook frame is including contact frame (201), two connecting rod (202) and control assembly, two connecting rod (202) parallel arrangement, two connecting rod (202) articulate respectively in the both sides of lifting hook (1), the blind hole has still been seted up to the one end of keeping away from self and lifting hook (1) articulated department in connecting rod (202), contact frame (201) are the structure pole of U-shaped, the both ends adaptation of contact frame (201) is inserted in the blind hole of connecting rod (202), control assembly sets up connecting rod (202) with between the contact frame, control assembly is used for control the both ends of contact frame (201) stretch into the length of the blind hole of connecting rod (202), contact frame (201) and the point of colluding inner wall contact of lifting hook (1), operating mechanism sets up on lifting hook (1), operating mechanism is used for control the rotation of connecting rod (202), two connecting rod (202) synchronous rotation.

2. The lifting rope unhooking prevention device according to claim 1, wherein the unhooking prevention frame further comprises a connecting gear (203), the operating mechanism comprises a driving shaft (601) and a driven gear set (602), the driven gear set (602) is a long rod provided with a gear for a connecting section fixing sleeve, the driven gear set (602) is rotatably arranged on the lifting hook (1), the driving shaft (601) is arranged on the outer side of the lifting hook (1), the driving shaft (601) is driven by a motor to rotate, the driving shaft (601) drives the driven gear set (602) to rotate through a transmission belt, the connecting gear (203) is fixedly arranged at the connecting end of the connecting rod (202) and the lifting hook (1), and the connecting gear (203) is meshed with the driven gear set (602).

3. The device for preventing the lifting rope from being unhooked according to claim 2, wherein the anti-blocking frame further comprises a rotating pad (204), the rotating pad (204) is made of rubber, the rotating pad (204) is arranged between the lifting hook (1) and the connecting gear (203), and the rotating pad (204) is in contact with the lifting hook (1) and the connecting gear (203).

4. The lifting rope unhooking prevention device according to claim 1, wherein the unhooking prevention frame further comprises a stopping sleeve (205) and a safety rope (206), the stopping sleeve (205) is sleeved on two bending edges of the contact frame (201), the stopping sleeve (205) is made of rubber materials, the stopping sleeve (205) is in sliding contact with the inner wall of a blind hole of the connecting rod (202), the safety rope (206) is arranged on the inner side of the blind hole of the connecting rod (202), one end of the safety rope (206) is connected to the bottom of the blind hole of the connecting rod (202), the other end of the safety rope (206) is connected to the end of the contact frame (201), and the length of the safety rope (206) is shorter than the depth of the blind hole of the connecting rod (202).

5. The lifting rope unhooking prevention device according to claim 1, wherein the unhooking prevention frame further comprises a protection sleeve (207), two bent edges of the contact frame (201) are further provided with an annular boss structure near a bent part, the protection sleeve (207) is made of rubber, one end of the protection sleeve (207) is connected to one end of the connecting rod (202) far away from a hinge joint of the connecting rod and the lifting hook (1), the other end of the protection sleeve (207) is connected to the annular boss of the contact frame (201), and the protection sleeve (207) is sleeved on the rod body of the contact frame (201) extending into the blind hole of the connecting rod (202).

6. The lifting rope unhooking prevention device according to claim 1, wherein the control assembly comprises an installation rod (3) and a rotating rod (4), two ends of the installation rod (3) are respectively connected with the middle parts of the two connecting rods (202), the installation rod (3) is not in contact with the lifting hook (1), a sleeve (301) is further arranged in the middle part of the installation rod (3), internal threads are further arranged on the inner wall of the sleeve (301), one end of the rotating rod (4) is rotatably arranged in the middle part of the contact frame (201), threads are further arranged on the outer wall of the rotating rod (4), the rotating rod (4) is not in contact with the lifting hook (1), the axial directions of the rotating rod (4) and the sleeve (301) are parallel to the connecting rods (202), and the rotating rod (4) is in threaded connection with the sleeve (301).

7. The lifting rope unhooking prevention device according to claim 6, wherein the control assembly further comprises a spring (501) and an auxiliary positioning block (502), the spring (501) and the auxiliary positioning block (502) are arranged on the inner side of the sleeve (301), one end of the spring (501) is connected to the end of the rotating rod (4), the other end of the spring (501) is connected to the auxiliary positioning block (502), the auxiliary positioning block (502) is rotatably arranged at the bottom of the sleeve (301), and a convex part used for limiting the auxiliary positioning block (502) is further arranged on the inner wall of the sleeve (301).

8. The lifting rope unhooking prevention device according to claim 1, characterized in that the unhooking prevention frame further comprises a replacement pad (208), a concave structure matched with the hooking tip of the lifting hook (1) is further arranged at the contact position of the contact frame (201) and the hooking tip of the lifting hook (1), the replacement pad (208) is pasted at the concave structure of the contact frame (201), and the replacement pad (208) is in contact with the lifting hook (1).