CN112897317B - Lifting rigging - Google Patents

Abstract

The invention provides a lifting rigging, and belongs to the technical field of logistics transportation. The lifting rigging solves the problem that an existing lifting rigging is short in service life. The lifting rigging comprises a lifting ring and at least one lifting hook hung on the lifting ring, wherein the lifting hook is provided with a hooking hole with a hook opening, the aperture of the hooking hole is larger than the width of the hook opening, the side part of the lifting ring is provided with a unhooking section which is flat, the thickness of the unhooking section is smaller than the width of the hook opening, the lifting hook can only be separated from the lifting ring by the unhooking section, the width of the unhooking section along the transverse direction is larger than the aperture of the hooking hole, a transverse division bar is fixedly connected in the lifting ring, a blocking piece is hinged on the transverse division bar, and the end part of the blocking piece is positioned in the middle of the unhooking section to block the lifting hook from separating from the lifting ring when no external force acts. The invention has the advantages of high safety, long service life and convenient operation.

Description

Lifting rigging

Technical Field

The invention belongs to the technical field of logistics transportation, and relates to a lifting rigging.

Background

The lifting rigging is a complete set of rigging for hooking or grabbing goods so as to realize lifting or transporting the goods, and the lifting rigging is needed to realize the transportation of the goods in the helicopter hanging operation.

The lifting rigging generally comprises a lifting ring and hanging pieces connected to the lifting ring, wherein in the use process, one or more hanging pieces can be connected to the lifting ring according to different cargoes, for example, when a pallet of cargoes is used, four hanging pieces are usually required to be connected to the lifting ring; when in bar-shaped goods or bag goods, the lifting requirement can be met by only installing one or two hanging pieces on the lifting ring. In order to meet the demand of disassembling and assembling the hanging parts on the lifting rigging, various structures are also available at present. A block-connected hook group (application number: 201811077420.4; publication number: CN 109042436A) in an offshore culture feeding system is disclosed in Chinese patent literature, the quick-connected hook group comprises a hook and a quick-connected hanging ring, an opening is arranged on the hook, a unhooking groove is arranged on the side edge of the quick-connected hanging ring, and the width of a gap of the opening on the hook is larger than the thickness of the unhooking groove, so that the hook can be sleeved into or separated from the quick-connected hanging ring from the unhooking groove in the quick-connected hanging ring through the gap of the opening. Although the quick assembly disassembly of couple has been realized to this structure, owing to there is the unexpected risk of deviating from of couple, therefore the security is not high. And a quick-release type lifting connection ring (application number: CN200520039693.1; publication number: CN 2771163) disclosed in Chinese patent literature, wherein the lifting connection ring comprises a C-shaped ring body, a detachable joint is assembled at a notch of the C-shaped ring body, the lifting connection ring can be connected with a hanging piece such as a lifting hook in the lifting process, at the moment, the detachable joint can prevent the hanging piece from falling out of the lifting connection ring, and the requirements of disassembly and replacement of the hanging piece can be met by detaching the detachable joint. However, when the quick-release type lifting connecting ring is used in some special lifting environments such as helicopter hanging operation, some defects still exist: the helicopter often faces very bad weather when hanging, and wind power is very big when hanging in the high altitude, can lead to the goods of handling to shake violently like this and draw the random rocking of handling rigging, and the lifting hook also can slide at will on the ring body. And when carrying out the handling of some tray goods, usually need connect four lifting hooks on the ring body, four lifting hooks are connected with four corners of tray through the lifting rope respectively, and the lifting hook receives the pulling force effect at different angles this moment, and the lifting hook that is located leftmost or right side is close to the lateral part of ring body. At this time, the random rocking of the lifting rigging can make the detachable joint frequently receive the striking of lifting hook, leads to the reliability, stability and the life of detachable joint all can receive the influence, and then leads to this jack-up go-between life to reduce, and the security also can not guarantee.

At present, in order to solve the problem of short service life of a lifting rigging in the field, the technical means adopted conventionally are as follows:

1. the lifting rigging adopts a structure of a primary lifting ring and a secondary lifting ring. The primary and secondary rings are sleeved with one or more secondary rings through the main ring, and the main ring is entirely die-forged, so that the primary and secondary rings have the advantages of high strength, long service life, good safety and the like, and are one of the longest lifting rigging adopted at present. A helicopter safety lifting appliance and a working method thereof (application number: 201910309416.4; application publication number: CN 110092289A) are disclosed in Chinese patent literature. The helicopter safety lifting device is characterized in that four small lifting rings are sleeved on the large lifting ring, so that four lifting ropes are connected through the four small lifting rings, and lifting of a cargo bed is realized.

2. If the requirement that the hanging piece can be disassembled and assembled is also required, the hanging piece is usually connected with the hanging ring by adopting an anti-falling lifting hook at present, so that one or more anti-falling lifting hooks can be selectively connected with the hanging ring. The structure ensures the structural strength of the hanging ring, so that the hanging rigging has longer service life. The structure of the anti-falling lifting hook is as disclosed in Chinese patent literature, namely, the anti-falling lifting hook of the crane (application number: CN201720190925.6; publication number: CN 206502520U).

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a lifting rigging, which solves the problem of short service life of the existing lifting rigging.

The aim of the invention can be achieved by the following technical scheme: the utility model provides a handling rigging, includes rings and at least one hanger of hanging on rings, have the hook hole that has the hook mouth on the hanger, the aperture of hook hole is greater than the width of hook mouth, the lateral part of rings has the unhook section that is the platykurtic, the thickness of unhook section is less than the width of hook mouth and the hanger can only deviate from by unhook section rings, its characterized in that, the width of unhook section along horizontal direction is greater than the aperture of hook hole, link firmly a horizontal parting bead in the rings the horizontal parting bead on articulated have the barrier, the tip of barrier is in the middle part of unhook section in order to block the lifting hook and deviate from rings when not receiving external force.

According to the lifting rigging, the blocking piece is hinged to the transverse parting bead, and the end part of the blocking piece is positioned in the middle of the unhooking section when no external force acts on the blocking piece, so that the blocking piece can always block the lifting hook from being separated from the unhooking section to lift the lifting ring in the lifting process. When the lifting hook is required to be dismounted, the blocking piece is only required to be operated to swing, so that the blocking piece is switched to an avoidance state, then the lifting hook can be moved to the unhooking section, at the moment, the lifting hook can be dismounted through the unhooking section through the hook opening of the lifting hook because the thickness of the unhooking section is smaller than the width of the hook opening, and otherwise, the lifting hook can be mounted.

This handling rigging carries out special design to the structure of unhooking the section, makes the width of unhooking the section along transverse direction be greater than the aperture of hook hole on the lifting hook, and such design makes under bad weather condition, even if lifting hook moves towards the top of rings, but if as long as the opening orientation of hook opening on the lifting hook is inconsistent with the transverse direction of unhooking the section, the unhooking section all can block the lifting hook formation and make the lifting hook unable to continue upwards movement, guarantees that the lifting hook can not deviate from rings. Therefore, the lifting rigging realizes the falling prevention of the lifting hook through the self structure of the lifting ring, namely the unhooking section under most conditions, and only when the opening orientation of the hook opening on the lifting hook is consistent with the transverse direction of the unhooking section under very few conditions, the lifting hook is blocked by the blocking piece to fall off the lifting ring. And because the tip of blocking the piece is in the middle part of unhooking the section for when the opening orientation of hook opening on the lifting hook is inconsistent with the transverse direction of unhooking the section, the lifting hook can not directly strike blocking the piece, thereby has formed the protection to blocking the piece, avoids blocking the piece and frequently receives the striking to lead to its stability and reliability to receive the influence, so the security and the life of rings use are guaranteed. In addition, because rings self stable in structure, intensity is high, consequently mainly rely on rings self structure to realize lifting hook anticreep for lifting rigging life prolongs greatly, can effectually stop unexpected unhooking's risk moreover, and the security is higher, makes lifting rigging can satisfy the requirement of abominable operation environment. Meanwhile, the transverse parting strip is additionally arranged in the lifting ring to mount the blocking piece, and the transverse parting strip is arranged to enable the hinging mounting of the blocking piece to be realized without punching holes on the lifting ring, so that the problem that the structural strength of the lifting ring is reduced due to punching holes on the lifting ring is avoided, and the rated load of the lifting rope is higher and the service life of the lifting rope is longer.

In the lifting rigging, two ends of the transverse parting strip are fixedly connected with the inner side wall of the lifting ring, the blocking piece is hinged to one end of the transverse parting strip, and the unhooking section is located at the lower side of the joint of the end of the transverse parting strip and the lifting ring. The design makes the diaphragm bar support and strengthen the lifting ring, so that the lifting ring is not easy to deform, and the service life of the lifting ring is prolonged. Meanwhile, when the lifting device is used, the top of the lifting ring is connected with the lifting member, the bottom of the lifting ring is connected with the lifting hook, and the transverse parting bead separates the inner hole of the lifting ring into an upper independent hole and a lower independent hole, so that the lifting hook and the lifting member are not interfered with each other in the lifting process and cannot collide with each other, and further protection is formed on the lifting hook and the lifting member. The blocking piece is hinged to one end of the transverse parting bead, so that the blocking piece is relatively close to the unhooking section, the size of the blocking piece and the occupied space of the blocking piece can be reduced, and a plurality of lifting hooks are convenient to hang on the lifting ring, so that the requirement of multi-hook connection is met. In addition, the blocking piece is hinged to one end of the transverse bar, and in the using process, when an operator holds the hanging ring, the finger is just located at the blocking piece, so that one-hand operation can be facilitated. Therefore, when the lifting hook is installed and removed, the lifting ring can be operated by one hand, and the lifting hook is grasped by the other hand, so that the lifting hook is installed and removed only by one person, and the operation is very convenient.

In the lifting rigging, the blocking piece is connected with an elastic reset piece which can drive the blocking piece to swing towards the unhooking section and lean against the unhooking section. Through setting up the elastic return piece for the blocking piece can not open automatically when not receiving the exogenic action, avoids the unexpected circumstances of deviating from rings of lifting hook.

In the lifting rigging, the blocking piece comprises two side plates which are oppositely arranged, one ends of the two side plates are respectively positioned at two sides of the transverse parting bead and are hinged with the transverse parting bead, the other ends of the two side plates are swing ends, a limiting piece is connected between the swing ends of the two side plates, and the limiting piece is propped against the middle part of the unhooking section towards the side face of the unhooking section. The design ensures that the stability of the structure of the blocking piece and the stability of installation are ensured, thereby being beneficial to prolonging the service life of the blocking piece. The setting of spacing piece has limited the range of stop piece downward swing, and when the spacing piece of stop piece was supported and is leaned on the unhooking segment towards the side of unhooking segment, the stop piece can block the lifting hook, avoids the lifting hook to deviate from rings from the unhooking segment.

In the lifting rigging, the other side face of the limiting piece and the inner side faces of the two side plates enclose to form the abdication groove, and the barrier piece swings upwards and then the transverse bar can be embedded into the abdication groove and propped against the limiting piece, and the outer side faces of the two side plates are provided with the convex force applying parts. The design of the abdication groove enables the blocking piece to have larger swing amplitude, so that when the blocking piece swings to an avoidance state, the lifting hook has larger moving space, and the lifting hook can be conveniently installed and detached. By arranging the force-applying part on the side plate, fingers can be applied to the force-applying part in the process of upwards snapping the blocking piece, so that the operation is labor-saving and convenient. Moreover, after the blocking piece swings upwards, the blocking piece is abutted against the limiting piece through the transverse parting bead, so that the amplitude of the upward swing of the blocking piece can be limited, and the operation is more convenient.

In the lifting rigging, the lifting ring comprises a ring main body with two end parts and a circular cross section, the unhooking section is connected between the two end parts of the ring main body, the inner side surface and the outer side surface of the unhooking section are both convex, and the two end surfaces of the unhooking section are both concave relative to the surface of the ring main body. The two end surfaces of the unhooking section are concave relative to the surface of the ring main body, so that the unhooking section is relatively thin, thereby meeting the requirements of the installation and the disassembly of the lifting hook. The inner side surface and the outer side surface of the unhooking section are protruded outwards from the surface of the ring main body, so that the unhooking section is widened, the unhooking section can form a barrier to the lifting hook, the barrier is prevented from being impacted frequently, the unhooking section is further enabled to have a larger cross-sectional area, the lifting rings have higher strength at all positions, the risk of breakage of the lifting rings at the unhooking section is avoided, the service life of the lifting rigging is prolonged, and the lifting rigging is enabled to have higher rated load.

In the lifting rigging, the inner side surface and the outer side surface of the unhooking section are in transitional connection with the surface of the ring main body through the upper outer cambered surface and the lower outer cambered surface, and the two end surfaces of the unhooking section are in transitional connection with the surface of the ring main body through the upper inner cambered surface and the lower inner cambered surface. The design makes the surface of the junction of the unhooking section and the ring main body alleviate the transition, is favorable to reducing stress concentration, and avoids the condition that the stress concentration and then the fracture occur due to the abrupt change of the section of the junction of the lifting ring. Meanwhile, the lifting hook needs to be pulled to move in the manual lifting hook unloading process, and the lifting hook can be contacted with the outwards protruding cambered surface when moving, and at the moment, the lifting hook can be manually unloaded more smoothly due to the design of the cambered surface.

In the lifting rigging, the two side plates are parallel to each other, the swing ends of the two side plates are provided with the protruding limiting parts, the unhooking section is partially embedded between the two limiting parts, and the distance between the two limiting parts is larger than the thickness of the unhooking section. The distance between the two limiting parts is greater than the thickness of the unhooking section, so that after the unhooking section is partially embedded between the two limiting parts, gaps are reserved between the two limiting parts and the unhooking section, and the blocking piece is ensured to be smoothly reset to a state propped against the unhooking section. Through setting up two spacing portions, can restrict the range that stops the piece to rock back and forth for stop piece stability promotes, and can prevent more reliably that the lifting hook from deviating from rings.

In the lifting rigging, the pin shaft is arranged on the transverse parting strip in a penetrating manner and can rotate around the axis line of the pin shaft, one end of one side plate is connected with one end of the pin shaft, one end of the other side plate is connected with the other end of the pin shaft, and the elastic reset piece is a torsion spring sleeved on the pin shaft. In the actual manufacturing process, the fixed torsion arm of the torsion spring is abutted against the outer wall of the hanging ring, and the swinging torsion arm of the torsion spring is abutted against the limiting piece of the blocking piece. The arrangement of the pin shaft is convenient for the installation of the blocking piece and ensures the stability of the installation.

In the lifting rigging, the end face of the hook tip of the lifting hook is a plane, the lifting hook is further provided with a convex rib opposite to the end face of the hook tip, a hook opening of the lifting hook is formed between the convex rib and the end face of the hook tip, and the convex rib faces the surface of the hook tip and is parallel to the end face of the hook tip. In this handling rigging, the width of lifting hook mouth needs reasonable control, has the risk of unexpected unhook when the opening is too big, and the opening is too little, is inconvenient for the installation and the dismantlement of lifting hook. In view of this, this handling rigging is through the setting of protruding muscle, in the course of working, the protruding height of protruding muscle is convenient for process and adjustment to the width of lifting hook mouth of rational control in the course of working of being convenient for. The surface of the convex rib facing to the hook tip is parallel to the end face of the hook tip, so that the width of the hook mouth of the lifting hook is consistent in the length direction of the convex rib, the unhooking section can conveniently and smoothly pass through the convex rib, and the lifting hook is convenient to install and detach.

Compared with the prior art, the lifting rigging has the following advantages:

1. in this handling rigging, rings mainly rely on unhooking section to realize the lifting hook anticreep, can form fine protection to blocking the piece at handling in-process, can avoid blocking the frequent problem that receives the striking to lead to its stability and reliability to receive the influence, consequently, this handling rigging has the security height, long service life's advantage for this handling rigging can satisfy the requirement of abominable operation environment.

2. According to the lifting rigging, the blocking piece is hinged to the transverse parting bead through the transverse parting bead, and in the use process, when an operator holds the lifting ring by hand, the finger is just located at the blocking piece, so that one-hand operation can be facilitated. Therefore, the lifting rigging also has the advantage of convenient operation.

3. The lifting rigging has higher rated load, so the lifting rigging has the advantage of wide application range.

Drawings

Fig. 1 is a schematic perspective view of the lifting rigging.

Fig. 2 is a schematic perspective view of the lifting rigging after hiding the hook.

Fig. 3 is a partial side view of the present lifting rigging.

Fig. 4 is a schematic perspective view of a lifting ring in the lifting rigging.

Fig. 5 is a schematic perspective view of the blocking member, pin and elastic restoring member in the lifting rigging.

Fig. 6 is a schematic perspective view of the hook in the lifting rigging.

Fig. 7 is a schematic view of the lifting hook and the lifting ring in the lifting process when shaking.

Fig. 8 is a schematic diagram of the lifting rigging removal process.

Fig. 9 is a second schematic diagram of the lifting rigging removal process.

In the figure, 1, a hanging ring; 11. unhooking sections; 12. a ring body; 2. a lifting hook; 21. a hook opening; 22. a hooking hole; 23. a hook tip; 24. convex ribs; 3. a transverse division bar; 4. a blocking member; 41. a side plate; 42. a limiting piece; 43. a relief groove; 44. a force portion; 45. a limit part; 5. an elastic reset piece; 51. fixing the torsion arm; 52. swinging the torsion arm; 6. and a pin shaft.

Detailed Description

The following is a specific embodiment of the present invention and a technical solution of the present invention is further described with reference to the accompanying drawings, but the present invention is not limited to this embodiment.

As shown in fig. 1, the lifting rigging comprises a lifting ring 1 and at least one lifting hook 2 hung on the lifting ring 1, in this embodiment, four lifting hooks 2 are hung on the lifting ring 1, and in the actual manufacturing and using process, the number of the lifting hooks 2 on the lifting ring 1 can be changed according to the actual situation, for example, one, two or three lifting hooks 2 are hung on the lifting ring 1. The lifting hook 2 is provided with a hooking hole 22 with a hook opening 21, and the aperture of the hooking hole 22 is larger than the width of the hook opening 21.

As shown in fig. 2 to 4, the hanging ring 1 comprises a ring main body 12 with two ends and a circular cross section, a unhooking section 11 is connected between the two ends of the ring main body 12, the inner side surface and the outer side surface of the unhooking section 11 are both convex with respect to the surface of the ring main body 12, and the two end surfaces of the unhooking section 11 are both concave with respect to the surface of the ring main body 12. The inner side surface and the outer side surface of the unhooking section 11 are in transitional connection with the surface of the ring main body 12 through an upper convex cambered surface and a lower convex cambered surface, and the two end surfaces of the unhooking section 11 are in transitional connection with the surface of the ring main body 12 through an upper concave cambered surface and a lower concave cambered surface. The design makes the surface of the junction of the unhooking segment 11 and the ring main body 12 to alleviate the transition, is favorable to reducing stress concentration, and avoids the condition that the stress concentration and then the fracture occur due to the abrupt change of the section of the junction of the lifting ring 1. The two end faces of the unhooking segment 11 are recessed relative to the surface of the ring body 12 so that the unhooking segment 11 is relatively thin, thereby meeting the requirements of mounting and dismounting the hook 2. The inner side surface and the outer side surface of the unhooking section 11 are protruded outwards from the surface of the ring main body 12, so that the lifting ring 1 has higher strength at each part, the risk of breakage of the lifting ring 1 at the unhooking section 11 is avoided, the service life of the lifting rigging is prolonged, and the lifting rigging has higher rated load.

As shown in fig. 2 to 4, a transverse bar 3 is fixedly connected in the lifting ring 1, two ends of the transverse bar 3 are fixedly connected with the inner side wall of the lifting ring 1, a blocking member 4 is hinged at one end of the transverse bar 3, an unhooking section 11 is positioned at the lower side of the joint of the end of the transverse bar 3 and the lifting ring 1, a blocking member 4 is hinged on the transverse bar 3, an elastic reset member 5 capable of driving the blocking member 4 to swing towards the unhooking section 11 and propping against the unhooking section 11 is connected on the blocking member 4, and the end of the blocking member 4 is positioned in the middle of the unhooking section 11 to block the lifting hook 2 from being separated from the lifting ring 1 under the action of the elastic reset member 5 when no external force acts.

As shown in fig. 2 and 5, the blocking member 4 includes two opposite side plates 41, the two side plates 41 are parallel to each other, the transverse partition 3 is provided with a pin shaft 6 in a penetrating manner, and the pin shaft 6 can rotate around its axis, one end of one side plate 41 is located at one side of the transverse partition 3 and connected with one end of the pin shaft 6, and one end of the other side plate 41 is located at the other side of the transverse partition 3 and connected with the other end of the pin shaft 6. The other ends of the two side plates 41 are swing ends, a limiting piece 42 is connected between the swing ends of the two side plates 41, and the limiting piece 42 abuts against the middle part of the unhooking section 11 towards the side surface of the unhooking section 11. The other side surface of the limiting piece 42 and the inner side surfaces of the two side plates 41 are enclosed to form a yielding groove 43, and the barrier 4 swings upwards and then the transverse barrier 3 can be embedded into the yielding groove 43 and propped against the limiting piece 42. As shown in fig. 8 and 9, the design of the relief groove 43 enables the blocking member 4 to have a larger swing amplitude, so that the hook 2 has a larger moving space when the blocking member 4 swings to the relief state, and the hook 2 can be conveniently mounted and dismounted. Moreover, the blocking piece 4 is abutted against the limiting piece 42 through the transverse parting strip 3 after swinging upwards, so that the upward swinging amplitude of the blocking piece 4 is limited, and the operation is more convenient.

As shown in fig. 3 and 5, the swing ends of the two side plates 41 are provided with protruding limiting portions 45, the unhooking segment 11 is partially embedded between the two limiting portions 45, and the distance between the two limiting portions 45 is greater than the thickness of the unhooking segment 11. The distance between the two limiting parts 45 is greater than the thickness of the unhooking segment 11, so that after the unhooking segment 11 is partially embedded between the two limiting parts 45, gaps are reserved between the two limiting parts 45 and the unhooking segment 11, and the blocking piece 4 is ensured to be smoothly reset to a state propped against the unhooking segment 11. Through setting up two spacing portions 45, can restrict the range that stops 4 rocking back and forth for stop 4 is comparatively stable in order to prevent more reliably that lifting hook 2 from deviating from rings 1, can also promote the life of handling rigging simultaneously.

As shown in fig. 2 and 5, both side plates 41 have protruding force portions 44 on the outer side surfaces thereof. By providing the force-applying portion 44 on the side plate 41, the finger can be applied to the force-applying portion 44 during the upward pulling of the stopper 4, so that the operation is labor-saving and convenient. Therefore, when the lifting hook 2 is installed and removed, the lifting ring 1 can be operated by one hand, and the lifting hook 2 is grasped by the other hand, so that the lifting hook 2 is installed and removed by only one person, and the operation is very convenient. The elastic reset piece 5 is a torsion spring sleeved on the pin shaft 6, a fixed torsion arm 51 of the torsion spring abuts against the outer wall of the hanging ring 1, and a swinging torsion arm 52 of the torsion spring abuts against the limiting piece 42 of the blocking piece 4.

As shown in fig. 6, the end face of the hook tip 23 on the hook 2 is a plane, the surface of the hook 2 is provided with a convex rib 24 opposite to the end face of the hook tip 23, a hook opening 21 of the hook 2 is formed between the convex rib 24 and the end face of the hook tip 23, and the convex rib 24 faces the surface of the hook tip 23 and is parallel to the end face of the hook tip 23. In this handling rigging, the width of lifting hook 2 hook opening 21 needs reasonable control, has the risk of unexpected unhooking when the opening is too big, and the opening is too little, is inconvenient for lifting hook 2's installation and lift off. In view of this, this handling rigging is through the setting of protruding muscle 24, in the course of working, the protruding height of protruding muscle 24 is convenient for process and adjustment to the width of the hook mouth 21 of lifting hook 2 in the course of working rational control of being convenient for. The convex rib 24 faces the surface of the hook tip 23 and is parallel to the end face of the hook tip 23, so that the width of the hook mouth 21 of the lifting hook 2 is consistent in the length direction of the convex rib 24, the unhooking section 11 can conveniently and smoothly pass through, and the lifting hook 2 is convenient to install and detach.

As shown in fig. 7, fig. 7 illustrates one of the states of the hook 2 and the hanging ring 1 when the hook 1 is swung during the lifting process. This handling rigging has carried out special design through the structure to unhook section 11, makes unhook section 11 be greater than the aperture of hook hole 22 on lifting hook 2 along the width of transverse direction, and such design makes under bad weather condition, even if lifting hook 2 moves towards the top of rings 1, but if opening orientation of hook opening 21 on lifting hook 2 is inconsistent with the transverse direction of unhook section 11, unhook section 11 all can form the stopper to lifting hook 2 and make lifting hook 2 unable to continue the upward movement, guarantees that lifting hook 2 can not deviate from rings 1. Therefore, the lifting rigging realizes the anti-falling of the lifting hook 2 through the self structure of the lifting ring 1, namely the unhooking section 11 under most conditions, and only when the opening orientation of the hook opening 21 on the lifting hook 2 is consistent with the transverse direction of the unhooking section 11 under very few conditions, the lifting hook 2 is required to be blocked from falling out of the lifting ring 1 by the blocking piece 4. And because the tip of blocking piece 4 is in the middle part of unhooking section 11 for when the opening orientation of hook opening 21 on lifting hook 2 is inconsistent with the transverse direction of unhooking section 11, lifting hook 2 can not directly strike blocking piece 4, thereby has formed the protection to blocking piece 4, avoids blocking piece 4 frequently receiving the striking and leads to its stability and reliability to receive the influence, in order to guarantee rings 1 security and life that use.

When the lifting hook 2 needs to be dismounted, only the blocking piece 4 needs to be operated to swing, so that the blocking piece is switched to the avoiding state, as shown in fig. 8, then the lifting hook 2 is held by hand to move upwards, and the opening orientation of the hook opening 21 on the lifting hook 2 is kept consistent with the transverse direction of the unhooking section 11. Thereafter, the lifting hook 2 is continuously moved upwards until the lifting hook 2 is moved to the unhooking section 11, as shown in fig. 9, at this time, since the thickness of the unhooking section 11 is smaller than the width of the hook opening 21, the lifting hook 2 can be detached by passing the hook opening 21 of the lifting hook 2 through the unhooking section 11, and conversely, the lifting hook 2 can be installed.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although 1, a sling is used more herein; 11. unhooking sections; 12. a ring body; 2. a lifting hook; 21. a hook opening; 22. a hooking hole; 23. a hook tip; 24. convex ribs; 3. a transverse division bar; 4. a blocking member; 41. a side plate; 42. a limiting piece; 43. a relief groove; 44. a force portion; 45. a limit part; 5. an elastic reset piece; 51. fixing the torsion arm; 52. swinging the torsion arm; 6. pin, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.

Claims (10)

1. The utility model provides a handling rigging, includes rings (1) and at least one hook (2) of hanging on rings (1), have on hooks (2) and have hook hole (22) that have hook mouth (21), the aperture of hook hole (22) is greater than the width of hook mouth (21), the lateral part of rings (1) has unhook section (11) that are the platykurtic, the thickness of unhook section (11) is less than the width of hook mouth (21) and lifting hook (2) can only deviate from by unhook section (11) rings (1), a serial communication port, the width of unhook section (11) is greater than the aperture of hook hole (22), link firmly one transverse bar (3) in rings (1) on transverse bar (3) articulate and have blocking member (4), the tip that is in unhook section (11) is in order to block rings (1) of lifting hook (2) when not receiving the external force.

2. The lifting rigging according to claim 1, wherein both ends of the transverse bar (3) are fixedly connected with the inner side wall of the lifting ring (1), the blocking member (4) is hinged at one end of the transverse bar (3) and the unhooking section (11) is positioned at the lower side of the joint of the end of the transverse bar (3) and the lifting ring (1).

3. A lifting rigging according to claim 2, characterised in that the blocking element (4) is connected with an elastic return element (5) which can drive the blocking element (4) to swing towards the unhooking segment (11) and to rest against the unhooking segment (11).

4. A lifting rigging according to claim 3, wherein the blocking member (4) comprises two side plates (41) arranged oppositely, one ends of the two side plates (41) are respectively located at two sides of the transverse parting strip (3) and hinged with the transverse parting strip (3), the other ends of the two side plates (41) are swing ends, a limiting piece (42) is connected between the swing ends of the two side plates (41), and the limiting piece (42) is propped against the middle part of the unhooking section (11) towards the side surface of the unhooking section (11).

5. The lifting rigging according to claim 4, wherein the other side surface of the limiting piece (42) and the inner side surfaces of the two side plates (41) are surrounded to form a yielding groove (43), the barrier (4) swings upwards, the transverse bar (3) can be embedded into the yielding groove (43) and abuts against the limiting piece (42), and the outer side surfaces of the two side plates (41) are provided with convex force applying parts (44).

6. Hoisting rigging according to any one of claims 1 to 5, wherein the hoisting ring (1) comprises a ring body (12) having two ends and a circular cross section, the unhooking segment (11) being connected between the two ends of the ring body (12), the inner and outer sides of the unhooking segment (11) each being convex with respect to the surface of the ring body (12), the two end faces of the unhooking segment (11) each being concave with respect to the surface of the ring body (12).

7. The lifting rigging according to claim 6, wherein the inner side surface and the outer side surface of the unhooking section (11) are in transitional connection with the surface of the ring main body (12) through an upper outer cambered surface and a lower outer cambered surface, and the two end surfaces of the unhooking section (11) are in transitional connection with the surface of the ring main body (12) through an upper inner cambered surface and a lower inner cambered surface.

8. The lifting rigging according to claim 4, wherein the two side plates (41) are parallel to each other, the swinging ends of the two side plates (41) are provided with a protruding limiting portion (45), the unhooking section (11) is partially embedded between the two limiting portions (45), and the distance between the two limiting portions (45) is larger than the thickness of the unhooking section (11).

9. The lifting rigging according to claim 8, wherein the transverse bar (3) is provided with a pin shaft (6) in a penetrating manner, the pin shaft (6) can rotate around the axis line thereof, one end of one side plate (41) is connected with one end of the pin shaft (6), one end of the other side plate (41) is connected with the other end of the pin shaft (6), and the elastic reset piece (5) is a torsion spring sleeved on the pin shaft (6).

10. A lifting rigging according to any one of claims 1 to 5, wherein the end face of the hook tip (23) of the lifting hook (2) is a plane, the lifting hook (2) further comprises a protruding rib (24) opposite to the end face of the hook tip (23), a hook opening (21) of the lifting hook (2) is formed between the protruding rib (24) and the end face of the hook tip (23), and the protruding rib (24) faces the surface of the hook tip (23) and is parallel to the end face of the hook tip (23).