CN219971596U - Composite lifting appliance - Google Patents

Abstract

The utility model relates to a composite lifting appliance, which comprises a lifting appliance body, at least one first lifting device and at least one second lifting device, wherein the first lifting device comprises a first driving mechanism and a lifting claw mechanism, and the second lifting device comprises at least two lifting lock mechanisms; the composite lifting appliance has a first use state and a second use state; in the first use state, at least part of the lifting claw mechanism protrudes out of the bottom of the lifting appliance body, and the composite lifting appliance is connected with a first to-be-lifted piece through the lifting claw mechanism; under the second use state, the lifting claw mechanism moves in a direction away from the second to-be-lifted part under the action of the first driving mechanism, at least part of the lifting lock mechanism protrudes out of the bottom of the lifting tool body, and the composite lifting tool is connected with the second to-be-lifted part through the lifting lock mechanism. The composite lifting appliance provided by the utility model can be switched between the first use state and the second use state through the first driving mechanism, is compatible with the lifting requirements of the tubular pile die and the square pile die, and greatly improves the production efficiency and the economic benefit.

Description

Composite lifting appliance

Technical Field

The utility model relates to the technical field of lifting appliances, in particular to a composite lifting appliance.

Background

The lifting appliance of the existing claw-holding mechanical structure has the advantages that lifting holding points are running wheels of a pipe pile die, and the claw holding direction is parallel to the die direction, so that the lifting appliance can only be used for lifting a concrete precast pipe pile die. However, more concrete precast pile production plants are currently in a mode of mixed production of tubular piles and square piles, and when one production line is switched from producing the tubular piles to producing the square piles, corresponding lifting appliances are required to be switched. Therefore, the design of the lifting appliance which can be used for simultaneously lifting the tubular pile and the square pile die is necessary from the economical angle or the efficiency angle.

Disclosure of Invention

Based on this, it is necessary to provide a composite spreader.

The composite lifting appliance comprises a lifting appliance body, at least one first lifting device and at least one second lifting device, wherein the first lifting device comprises a first driving mechanism and a lifting claw mechanism, and the lifting claw mechanism is movably connected with the lifting appliance body through the first driving mechanism; the second lifting device comprises at least two lifting lock mechanisms arranged on the lifting appliance body;

the composite lifting appliance has a first use state and a second use state; in the first use state, at least part of the lifting claw mechanism protrudes out of the bottom of the lifting appliance body, and the composite lifting appliance is connected with a first lifting part through the lifting claw mechanism; under the second use state, the lifting claw mechanism moves away from the second to-be-lifted part under the action of the first driving mechanism, at least part of the lifting lock mechanism protrudes out of the bottom of the lifting appliance body, and the composite lifting appliance is connected with the second to-be-lifted part through the lifting lock mechanism.

In one embodiment of the utility model, the lifting claw mechanism is rotatable within the lifting appliance body under the action of the first drive mechanism.

In one embodiment of the utility model, the part of the lifting claw mechanism protruding out of the bottom of the lifting appliance body is a lifting part, and the lifting part can be completely moved into the lifting appliance body under the action of the first driving mechanism.

In one embodiment of the utility model, the hanging claw mechanism comprises a top plate, two side plates, a claw holding driving piece, a mounting shaft, a hinge shaft and at least one group of clamping assemblies, wherein the two side plates are respectively and fixedly arranged on two opposite sides of the top plate; each holding claw comprises a mounting end and a clamping end, wherein the mounting ends are movably connected with the side plates through the mounting shafts, and the clamping ends are used for forming part of the hanging parts; one end of the holding claw driving piece is connected with the top plate, and the other end of the holding claw driving piece is connected with the hinge shaft and used for driving the two holding claws of the clamping assembly to open and close.

In one embodiment of the present utility model, the lifting claw mechanism further includes a lifting connection member, the first driving member is connected to the hinge shaft through the lifting connection member, the lifting connection member includes an annular lifting ring having an opening, and a sealing member detachably connected to the annular lifting ring for sealing the opening.

In one embodiment of the present utility model, the first lifting device further includes a bearing rotating shaft and two rotating bases, the two rotating bases are respectively located at two sides of the lifting claw mechanism and fixedly connected to the lifting appliance body, and two ends of the bearing rotating shaft respectively pass through the two side plates and are rotatably connected to the two rotating bases; and/or the number of the groups of groups,

one side of each side plate, which is relatively far away from the top plate, is provided with a pre-positioning opening, and the pre-positioning opening is used for positioning the lifting claw mechanism to align with the lifting position on the first lifting part.

In one embodiment of the present utility model, in the first use state, a length of the lifting lock mechanism protruding from the bottom of the lifting appliance body does not interfere with the connection of the lifting claw mechanism to the first lifting part.

In one embodiment of the utility model, the first driving mechanism comprises two first driving components, the two first driving components are symmetrically arranged on two sides of the hanging claw mechanism respectively, each first driving component comprises a first driving piece, a connecting plate and a fixing plate, one end of the first driving piece is rotatably connected with the hanging claw mechanism through the connecting plate, and the other end of the first driving piece is fixedly connected with the hanging claw mechanism through the fixing plate.

In one embodiment of the present utility model, the second lifting device further includes a positioning mechanism, where the two lifting lock mechanisms are symmetrically disposed at the bottom of the lifting device body, and the positioning mechanism is connected to the lifting lock mechanisms and located between the two lifting lock mechanisms, and at least part of the positioning mechanism protrudes from the bottom of the lifting device body and is used for positioning the two lifting lock mechanisms to align with a lifting position on the second to-be-lifted member.

In one embodiment of the present utility model, a plurality of first lifting devices are provided, two second lifting devices are provided, and a plurality of first lifting devices are arranged between the two second lifting devices.

Compared with the prior art, the position and the state of the hanging part of the hanging claw mechanism can be changed through the first driving mechanism, so that a user can freely switch the composite hanger between the first use state and the second use state according to different production requirements, the mutual interference between the first lifting device and the second lifting device of the composite hanger can be avoided, the lifting requirements of a tubular pile die and a square pile die are effectively met, the cost is greatly reduced, and the production efficiency and the economic benefit are greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present utility model, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of a composite lifting appliance provided by the utility model under a first view angle;

FIG. 2 is an enlarged schematic view of the structure shown at X in FIG. 1;

fig. 3 is a schematic structural diagram of the composite lifting appliance provided by the utility model under a second view angle;

FIG. 4 is an enlarged schematic view of the structure at Y in FIG. 3;

FIG. 5 is an enlarged schematic view of the structure at Z in FIG. 3;

fig. 6 is a schematic view of a part of the structure of the composite lifting appliance provided by the utility model;

fig. 7 is a schematic view of a part of the structure of the composite lifting appliance provided by the utility model;

FIG. 8 is a schematic view of the pawl mechanism of FIG. 1;

FIG. 9 is a schematic view of a portion of the pawl mechanism of FIG. 8;

FIG. 10 is a schematic view of the construction of the latch mechanism;

FIG. 11 is a schematic view of a first positioning member;

fig. 12 is a schematic structural view of the positioning mechanism.

Reference numerals: 100. a composite lifting appliance; 10. a hanger body; 11. a structural panel; 12. a fixedly connecting plate; 20. a first lifting device; 21. a first driving mechanism; 211. a first drive assembly; 2111. a first driving member; 2112. a connecting plate; 2113. a fixing plate; 22. a hanging claw mechanism; 202. a hanging part; 221. a top plate; 222. a side plate; 2221. a pre-positioning opening; 223. a claw holding driving member; 224. a mounting shaft; 225. a hinge shaft; 226. a clamping assembly; 2261. holding claws; 22611. a mounting end; 22612. a clamping end; 227. hoisting the connecting piece; 2271. an annular hanging ring; 2272. a sealing member; 23. a bearing rotating shaft; 24. rotating the base; 241. a fixed base portion; 242. a rotation shaft receiving part; 30. a second lifting device; 31. a hanging lock mechanism; 311. a fixing member; 312. a connecting piece; 3121. rotating the column; 3122. hanging buckle; 32. a positioning mechanism; 321. a first positioning member; 322. a linkage assembly; 33. and a hoist lock driving member.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and the like are used in the description of the present utility model for the purpose of illustration only and do not represent the only embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in the description of the present utility model includes any and all combinations of one or more of the associated listed items.

The lifting appliance of the existing claw-holding mechanical structure has the advantages that lifting holding points are running wheels of a pipe pile die, and the claw holding direction is parallel to the die direction, so that the lifting appliance can only be used for lifting a concrete precast pipe pile die. However, more concrete precast pile production plants are currently in a mode of mixed production of tubular piles and square piles, and when one production line is switched from producing the tubular piles to producing the square piles, corresponding lifting appliances are required to be switched. Therefore, the design of the lifting appliance which can be used for simultaneously lifting the tubular pile and the square pile die is necessary from the economical angle or the efficiency angle.

Based on this, the present utility model provides a composite hanger 100 for lifting precast pile dies, including but not limited to square pile dies and pipe pile dies, it being understood that in other embodiments, the composite hanger 100 may be applied to connection and lifting of other workpiece dies.

Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a composite spreader 100 according to the present utility model at a first view angle; FIG. 2 is an enlarged schematic view of the structure shown at X in FIG. 1; fig. 3 is a schematic structural diagram of the composite spreader 100 according to the present utility model in a second view angle; FIG. 4 is an enlarged schematic view of the structure at Y in FIG. 3; FIG. 5 is an enlarged schematic view of the structure at Z in FIG. 3; the composite lifting appliance 100 comprises a lifting appliance body 10, at least one first lifting device 20 and at least one second lifting device 30, wherein the first lifting device 20 comprises a first driving mechanism 21 and a lifting claw mechanism 22, and the lifting claw mechanism 22 is movably connected with the lifting appliance body 10 through the first driving mechanism 21; the second lifting device 30 comprises at least two lifting lock mechanisms 31 arranged on the lifting appliance body 10;

wherein the composite spreader 100 has a first use state and a second use state; in the first use state, at least part of the lifting claw mechanism 22 protrudes out of the bottom of the lifting appliance body 10, and the composite lifting appliance 100 is connected with a first to-be-lifted piece through the lifting claw mechanism 22; in the second use state, the lifting claw mechanism 22 moves away from the second to-be-lifted part under the action of the first driving mechanism 21, at least part of the lifting lock mechanism 31 protrudes from the bottom of the lifting tool body 10, and the composite lifting tool 100 is connected with the second to-be-lifted part through the lifting lock mechanism 31.

According to the composite lifting appliance 100 provided by the utility model, the position and the state of the lifting part 202 of the lifting claw mechanism 22 can be changed through the first driving mechanism 21, so that a user can freely switch the composite lifting appliance 100 between the first use state and the second use state according to different production requirements, mutual interference between the first lifting device 20 and the second lifting device 30 of the composite lifting appliance 100 can be avoided, the lifting requirements of a tubular pile die and a square pile die are effectively met, the cost is greatly reduced, and the production efficiency and the economic benefit are greatly improved.

Illustratively, in this embodiment, the first to-be-lifted member (not shown) is a tubular pile mold for manufacturing a tubular precast pile, the tubular body of the tubular pile mold is generally provided with a running wheel mechanism, and the claw mechanism 22 of the first lifting device 20 can be connected to the running wheel mechanism on the tubular pile mold to tightly lock the running wheel, so as to achieve connection reliability, and ensure that the tubular pile mold does not fall during lifting. The second to-be-lifted part (not shown) is a square pile mold for manufacturing square precast piles, two symmetrical clamping parts (not shown) are arranged on the square pile mold, clamping interfaces are arranged on the clamping parts, and the second lifting device 30 can be respectively clamped and connected with the clamping interfaces on the two clamping parts through two lifting lock mechanisms 31, so that the second to-be-lifted part is lifted.

Further, the use process of the composite hanger 100 is that when the pipe pile die needs to be lifted, a user can switch the composite hanger 100 to a first use state, and in the first use state, the hanging claw mechanism 22 of the first lifting device 20 can extend out of the bottom of the hanger body 10 to be connected with the running wheel mechanism on the pipe pile die. When the square pile mold is required to be lifted, the composite lifting tool 100 can be switched to a second use state, and in the second use state, the lifting claw mechanism 22 can move in a direction away from the second to-be-lifted part under the action of the first driving mechanism 21, so that at least part of the lifting lock mechanism 31 protrudes out of the bottom of the lifting tool body 10 to be connected with the clamping part on the square pile mold.

Referring to fig. 3 again, it should be noted that, in this embodiment, the hanger body 10 includes a fixing plate 12 and two structural plates 11 that are mutually fixed by the fixing plate 12, the two structural plates 11 are arranged side by side at intervals, the fixing plate 12 is located between the two structural plates 11, and two ends of the fixing plate 12 are respectively fixed to one structural plate 11; preferably, in order to enhance the connection stability of the two structural plates 11, a plurality of fastening plates 12 are provided between the two structural plates 11. Preferably, a plurality of fastening plates 12 are arranged at intervals, each fastening plate 12 being perpendicular to both structural plates 11. The first lifting device 20 and the second lifting device 30 are both arranged between two structural plates 11.

Preferably, in this embodiment, the lifting claw mechanism 22 is rotatable within the spreader body 10 under the influence of the first drive mechanism 21. So set up, the lifting claw mechanism 22 does not need too much space when moving relatively far away from the direction of the second to-be-lifted part, and the moving mode is simple and convenient. It will be appreciated that in other embodiments, the lifting claw mechanism 22 may also be raised or lowered by the first drive mechanism 21 to be relatively far from the second part to be lifted or relatively close to the first part to be lifted. In other words, the first driving mechanism 21 may be configured to move the claw mechanism 22 to a position that does not affect the connection of the second crane to the latch mechanism 31.

Referring again to fig. 1, in the present embodiment, preferably, the portion of the lifting claw mechanism 22 protruding from the bottom of the lifting appliance body 10 is a lifting portion 202, and the lifting portion 202 can be completely moved to the inside of the lifting appliance body 10 by the first driving mechanism 21. By the arrangement, the lifting claw mechanism 22 can be prevented from interfering with the connection of the lifting lock mechanism 31 with the second to-be-lifted part, the length of the lifting lock mechanism 31, which is required to be protruded out of the bottom of the lifting appliance body 10, is relatively reduced, and the space occupied by the whole composite lifting appliance 100 is reduced.

Preferably, in the present embodiment, in the first use state, the length of the hanging lock mechanism 31 protruding from the bottom of the hanger body 10 does not interfere with the connection of the hanging claw mechanism 22 to the first to-be-lifted member. In other words, in the present embodiment, in the first use state, the portion of the lifting lock mechanism 31 for connecting the second member to be lifted may always protrude from the bottom of the lifting appliance body 10, as long as the length protruding from the bottom of the lifting appliance body 10 does not interfere or affect the connection of the lifting claw mechanism 22 to the first member to be lifted. It will be appreciated that in other embodiments, a second driving mechanism may be provided in connection with the lifting lock mechanism 31, and in the first use state, the lifting lock mechanism 31 may be driven by the second driving mechanism to be hidden into the lifting appliance body 10, so as to ensure that the situation that the lifting claw mechanism 22 is connected with the first to-be-lifted member is not disturbed.

Referring to fig. 1 and 3 again, in the present embodiment, preferably, a plurality of first lifting devices 20 are provided, two second lifting devices 30 are provided, and a plurality of first lifting devices 20 are disposed between the two second lifting devices 30. So set up, can strengthen the connection reliability to first piece or second of waiting to lift by crane, in addition, two second hoisting accessory 30 interval are laid, a plurality of first hoisting accessory 20 are laid and two second hoisting accessory 30 between can make two second hoisting accessory 30 can connect the second that the size is great wait to lift by crane, and can furthest equally divide the second wait to lift by crane the gravity that the piece produced, alleviate the bearing pressure of single hoist mechanism 31, avoid hoist mechanism 31 and second wait to lift by crane the part of a joint bearing and appear deformation or fracture phenomenon.

It will be appreciated that in other embodiments of the present utility model, the composite lifting device 100 may also include one first lifting device 20 or more than three second lifting devices 30, so long as the use of the composite lifting device 100 is not affected, and the number and positions of the first lifting device 20 and the second lifting device 30 may be freely set according to the requirements.

Referring to fig. 4 again, and referring to fig. 6 to 9 together, fig. 6 is a schematic view of a part of the structure of the composite spreader 100 according to the present utility model; fig. 7 is a schematic view of a part of the structure of the composite spreader 100 according to the present utility model; FIG. 8 is a schematic view of the gripper mechanism 22 of FIG. 1; FIG. 9 is a schematic view of a portion of the claw mechanism 22 of FIG. 8; preferably, in the present embodiment, the first driving mechanism 21 includes two first driving assemblies 211, where the two first driving assemblies 211 are symmetrically disposed on two sides of the lifting claw mechanism 22, and each first driving assembly 211 includes a first driving member 2111, a connecting plate 2112 and a fixing plate 2113, where one end of the first driving member 2111 is rotatably connected to the lifting appliance body 10 through the connecting plate 2112, and the other end is fixedly connected to the lifting claw mechanism 22 through the fixing plate 2113. It will be appreciated that the two first driving assemblies 211 respectively drive the gripper mechanism 22 to rotate from two sides, which can increase the rotation stability and rotation speed of the gripper mechanism 22, and reduce or avoid the deviation of the rotation direction or the shaking of the rotation process.

Referring to fig. 7 to 9 again, in the present embodiment, the claw mechanism 22 includes a top plate 221, two side plates 222, a claw driving member 223, a mounting shaft 224, a hinge shaft 225, and at least one set of clamping assemblies 226, wherein the two side plates 222 are respectively fixed on two opposite sides of the top plate 221, the clamping assemblies 226 are located between the two side plates 222, each set of clamping assemblies 226 includes two claws 2261, and the two claws 2261 are disposed in a crossed manner and are rotatably connected to the two side plates 222 through the hinge shaft 225; each holding jaw 2261 includes a mounting end 22611 and a clamping end 22612, the mounting end 22611 being movably coupled to the side plate 222 by a mounting shaft 224, the clamping end 22612 for forming part of the hitch 202; one end of the holding claw driving member 223 is connected to the top plate 221, and the other end is connected to the hinge shaft 225, so as to drive the two holding claws 2261 of the clamping assembly 226 to open and close. The two holding claws 2261 are respectively provided with a hooking part, and in the first use state, the hooking parts of the two holding claws 2261 can be respectively clamped into the annular running wheel mechanism from two sides to clamp and hold the running wheel mechanism tightly. It will be appreciated that in other embodiments, a plurality of clamping assemblies 226 may be provided, i.e., a plurality of pairs of clasps 2261 may be provided to increase the reliability of the connection between the gripper mechanism 22 and the first member to be lifted. Preferably, in this embodiment, the clamping assembly 226 is provided with two sets.

Referring to fig. 7 and 9 again, in the present embodiment, preferably, the claw mechanism 22 further includes a lifting connection member 227, the first driving member 2111 is connected to the hinge shaft 225 through the lifting connection member 227, the lifting connection member 227 includes an annular lifting ring 2271 having an opening and a sealing member 2272, and the sealing member 2272 is detachably connected to the annular lifting ring 2271 for sealing the opening of the annular lifting ring 2271. So set up, first driving piece 2111 can drive two of all clamping assembly 226 through lifting by crane connecting piece 227 and articulated shaft 225 and embrace claw 2261 and open and shut in step, and the sealing piece 2272 of lifting by crane connecting piece 227 detachably connects in annular rings 2271 can be convenient for the user to dismantle lifting by crane connecting piece 227 from articulated shaft 225 through the opening, and then is convenient for overhaul lifting by claw mechanism 22 inside.

Referring to fig. 6 and 7 again, in the embodiment, preferably, the first lifting device 20 further includes a bearing shaft 23 and two rotating bases 24, the two rotating bases 24 are respectively located at two sides of the lifting claw mechanism 22 and fixedly connected to the lifting device body 10, and two ends of the bearing shaft 23 respectively pass through two side plates 222 to be rotatably connected to the two rotating bases 24. So set up, the cooperation of bearing pivot 23 and swivel base 24 can share the weight of lifting claw mechanism 22, increases the stability of lifting claw mechanism 22 installation on hoist body 10, does not influence first actuating mechanism 21 drive lifting claw mechanism 22 rotation or removal simultaneously. It should be noted that, in this embodiment, the bearing rotating shaft 23 also passes through the annular lifting ring 2271, and in the process of the annular lifting ring 2271 moving up and down, the bearing rotating shaft 23 can be always inside the annular region of the annular lifting ring 2271, in other words, the annular lifting ring 2271 of the lifting connecting piece 227 can avoid collision or mutual interference between the lifting connecting piece 227 and the bearing rotating shaft 23 in the lifting process, so that the function of the bearing rotating shaft 23 and the two holding claws 2261 of the clamping assembly 226 can be ensured to pull the hinge shaft 225 to normally open and close through the lifting connecting piece 227. Further, the rotating base 24 includes a fixed base portion 241 and a rotating shaft receiving portion 242 connected to each other, the bearing rotating shaft 23 is rotatably connected to the rotating shaft receiving portion 242 through a bearing member, and the rotating shaft receiving portion 242 is fixedly connected to the inner wall of the structural plate 11 of the spreader body 10 through the fixed base portion 241.

Referring to fig. 8 again, it is further preferred that in the present embodiment, a predetermined positioning opening 2221 is formed on a side of the two side plates 222 opposite to the top plate 221, and the predetermined positioning opening 2221 is used for positioning the claw mechanism 22 to align with the hanging position on the first to-be-lifted member. Preferably, the predetermined opening 2221 is in an inverted V shape, and is used for positioning the running wheel mechanism, so that the hanging claw mechanism 22 can accurately clamp the running wheel mechanism, and the clamping phenomenon is avoided after the clamping claw driving piece 223 drives the clamping claw 2261 to open and close. It will be appreciated that the centerline of the pre-positioning opening 2221 is in the same vertical plane as the centerlines of the two clasps 2261.

Referring to fig. 1, 2 and 5 again, and also referring to fig. 10, fig. 10 is a schematic structural view of the hanging lock mechanism 31; in this embodiment, the hanging lock mechanism 31 includes a fixing member 311 and a connecting member 312, the fixing member 311 is connected to the positioning mechanism 32, the connecting member 312 is rotatably connected to the fixing member 311 and has a locking state and a releasing state, the connecting member 312 is used for being clamped and fixed with the to-be-lifted member when in the locking state, and the connecting member 312 is used for releasing the to-be-lifted member when in the releasing state. So set up, mounting 311 can link firmly with positioning mechanism 32 to make hang lock mechanism 31 can follow positioning mechanism 32 and remove to realize with the accurate alignment of hoist position, connecting piece 312 can rotate and then switch connected state again relative to mounting 311, make hang lock mechanism 31 can normally with wait to hoist the hoist position joint fixed of piece or with wait to hoist the hoist position separation of piece and deviate from.

Specifically, the connecting piece 312 includes a rotation column 3121 and a hanging buckle 3122 connected to one end of the rotation column 3121, wherein the rotation column 3121 is rotatably connected to the fixing piece 311, the hanging buckle 3122 is located at the bottom of the fixing piece 311 and protrudes out of the fixing piece 311, and the hanging buckle 3122 is used for being matched with a clamping interface on a second to-be-lifted piece;

the hanging buckle 3122 has a first state with an included angle with the extending direction of the clamping interface of the clamping piece and a second state parallel to the extending direction of the clamping interface, when the hanging buckle 3122 enters the clamping interface and is in the first state, the connecting piece 312 and the second piece to be lifted can form a locking state, and when the hanging buckle 3122 is in the second state, the hanging buckle 3122 can freely enter and exit the clamping interface to form a releasing state with the connecting piece 312 and the second piece to be lifted.

It is understood that the hanging buckle 3122 may be, but is not limited to, rectangular, as long as it can perform a clamping function; preferably, in the present embodiment, a side of the suspension button 3122 remote from the rotation column 3121 is provided in an arc shape so that the suspension button 3122 protrudes into the clip interface.

It can be understood that the locking mode of the locking mechanism 31 of the present utility model only needs to vertically extend the lifting buckle 3122 of the connecting piece 312 into the corresponding clamping interface of the second to-be-lifted piece, so that the second lifting device 30 can perform lifting operation in a narrow space, and the lifting function of the locking mechanism 31 and the positioning function of the positioning mechanism 32 are not affected by the size of the space where the second to-be-lifted piece is stacked, thereby ensuring the practicability and applicability of the composite lifting appliance 100.

Referring to fig. 1, fig. 2 and fig. 5 again, and also referring to fig. 11 to fig. 12, fig. 11 is a schematic structural view of the first positioning member 321; fig. 12 is a schematic structural view of the positioning mechanism 32. Further, the second lifting device 30 further includes a positioning mechanism 32, where the two lifting lock mechanisms 31 are symmetrically disposed at the bottom of the lifting device body 10, the positioning mechanism 32 is connected to the lifting lock mechanisms 31 and located between the two lifting lock mechanisms 31, and at least part of the positioning mechanism 32 protrudes from the bottom of the lifting device body 10 and is used for positioning the two lifting lock mechanisms 31 to align with the lifting position on the second to-be-lifted member. So set up, positioning mechanism 32 then can auxiliary positioning hang the lock mechanism 31 and the second wait to lift by crane the position of lifting by crane between the piece, guarantee to hang the lock mechanism 31 and the second wait to lift by crane and can be accurately connected between the piece, avoid appearing hanging empty or unhooking the phenomenon, increase the reliability and the security of hoist.

Referring to fig. 2, 11 and 12 again, further, the positioning mechanism 32 includes at least two first positioning members 321, the two first positioning members 321 are symmetrically disposed on the left and right sides of the spreader body 10, and the two first positioning members 321 are used for abutting against the inner wall of the second to-be-lifted member from the left and right directions to position the hanging lock mechanism 31. The positioning mechanism 32 further comprises two linkage assemblies 322 movably provided to the spreader body 10, and each linkage assembly 322 fixedly connects the latch mechanism 31 and the first positioning member 321 on the same side. So set up, two linkage subassembly 322 can drive the hoist mechanism 31 of both sides and first locating part 321 and be close to each other or keep away from each other respectively, guarantee that hoist mechanism 31 can follow first locating part 321 synchronous movement, and then after first locating part 321 supports and wait to lift by crane the piece inner wall in the second, hoist mechanism 31 can just in time with the second wait to lift by crane the hoisting position alignment of piece, guarantee that hoist mechanism 31's lifting hook 3122 can with the second wait to lift by crane the last joint piece butt joint accuracy of piece.

It can be understood that when the first to-be-lifted member is implemented as a square pile mold, because the thicknesses of the square precast piles required by different building scenes are different, the diameters of the inner spaces of the square pile molds for manufacturing the precast piles are also different, so that the distance adjustment between the two first positioning members 321 can correspondingly match and position the square pile molds with different inner diameters, and the positioning manner of the first positioning members 321 is to perform left and right positioning in a manner of abutting against the inner walls of the precast pile molds, so that no sufficient space is required to be left outside the square pile molds, in other words, when a plurality of square pile molds are stacked and placed in a narrow steaming pool, the first lifting device 20 can still position the square pile molds through the positioning mechanism 32, and then the clamping members on the square pile molds are connected through the lifting locking mechanism 31 to lift the square pile molds, so that the first lifting device 20 can perform lifting work in a smaller space without being limited by the narrow stacking and placing space of the second to-be-lifted member.

Preferably, the second lifting device 30 further comprises a lifting lock driving member 33, and the lifting lock driving member 33 drives the connecting member 312 to rotate relative to the fixing member 311, so that the connecting member 312 is switched between the release state and the locking state. So set up, hang lock driving piece 33 can drive connecting piece 312 rotation, and then change the connected state between connecting piece 312 and the second piece of waiting to lift by crane, make compound hoist 100 can be fast with the second wait to lift by crane and realize locking or break away from between the piece.

It will be appreciated that the first drive 2111, the pawl drive 223, the latch drive 33, etc. described above may be embodied as pneumatic, hydraulic, or electric drives, including but not limited to cylinders, or motors.

Compared with the prior art, the composite lifting appliance 100 provided by the utility model can change the position and the state of the lifting part 202 of the lifting claw mechanism 22 through the first driving mechanism 21, so that a user can freely switch the composite lifting appliance 100 between the first use state and the second use state according to different production requirements, and the mutual interference between the first lifting device 20 and the second lifting device 30 of the composite lifting appliance 100 can be avoided, the lifting requirements of a tubular pile die and a square pile die are effectively compatible, the cost is greatly reduced, and the production efficiency and the economic benefit are greatly improved.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of the utility model should be determined from the following claims.

Claims (10)

1. The composite lifting appliance is characterized by comprising a lifting appliance body, at least one first lifting device and at least one second lifting device, wherein the first lifting device comprises a first driving mechanism and a lifting claw mechanism, and the lifting claw mechanism is movably connected to the lifting appliance body through the first driving mechanism; the second lifting device comprises at least two lifting lock mechanisms arranged on the lifting appliance body;

the composite lifting appliance has a first use state and a second use state; in the first use state, at least part of the lifting claw mechanism protrudes out of the bottom of the lifting appliance body, and the composite lifting appliance is connected with a first lifting part through the lifting claw mechanism; under the second use state, the lifting claw mechanism moves away from the second to-be-lifted part under the action of the first driving mechanism, at least part of the lifting lock mechanism protrudes out of the bottom of the lifting appliance body, and the composite lifting appliance is connected with the second to-be-lifted part through the lifting lock mechanism.

2. The compound spreader of claim 1, wherein the jaw mechanism is rotatable within the spreader body under the influence of the first drive mechanism.

3. The composite spreader of claim 1 or 2, wherein the portion of the gripper mechanism protruding from the bottom of the spreader body is a sling portion that is fully movable into the spreader body under the action of the first drive mechanism.

4. The composite lifting appliance according to claim 3, wherein the lifting claw mechanism comprises a top plate, two side plates, claw holding driving pieces, a mounting shaft, a hinge shaft and at least one group of clamping assemblies, the two side plates are respectively fixedly arranged on two opposite sides of the top plate, the clamping assemblies are positioned between the two side plates, each group of clamping assemblies comprises two claw holding pieces, and the two claw holding pieces are arranged in a crossed manner and are rotatably connected to the two side plates through the hinge shaft; each holding claw comprises a mounting end and a clamping end, wherein the mounting ends are movably connected with the side plates through the mounting shafts, and the clamping ends are used for forming part of the hanging parts; one end of the holding claw driving piece is connected with the top plate, and the other end of the holding claw driving piece is connected with the hinge shaft and used for driving the two holding claws of the clamping assembly to open and close.

5. The compound spreader of claim 4, wherein the jaw mechanism further comprises a lifting connection, the first drive mechanism being coupled to the hinge shaft via the lifting connection, the lifting connection comprising an annular ring having an opening and a closure member detachably coupled to the annular ring for closing the opening.

6. The composite lifting appliance according to claim 4, wherein the first lifting device further comprises a bearing rotating shaft and two rotating bases, the two rotating bases are respectively positioned at two sides of the lifting claw mechanism and fixedly connected to the lifting appliance body, and two ends of the bearing rotating shaft respectively penetrate through the two side plates and are rotatably connected to the two rotating bases; and/or the number of the groups of groups,

one side of each side plate, which is relatively far away from the top plate, is provided with a pre-positioning opening, and the pre-positioning opening is used for positioning the lifting claw mechanism to align with the lifting position on the first lifting part.

7. The composite spreader of claim 1, wherein in the first use state, a length of the latch mechanism protruding from the bottom of the spreader body does not interfere with the gripper mechanism connecting the first member to be lifted.

8. The composite lifting appliance according to claim 1, wherein the first driving mechanism comprises two first driving components, the two first driving components are symmetrically arranged on two sides of the lifting claw mechanism respectively, each first driving component comprises a first driving piece, a connecting plate and a fixing plate, one end of each first driving piece is rotatably connected with the lifting appliance body through the connecting plate, and the other end of each first driving piece is fixedly connected with the lifting claw mechanism through the fixing plate.

9. The composite spreader of claim 1, wherein the second lifting device further comprises a positioning mechanism, the two lifting lock mechanisms are symmetrically disposed at the bottom of the spreader body, the positioning mechanism is connected to the lifting lock mechanisms and is located between the two lifting lock mechanisms, and at least a portion of the positioning mechanism protrudes from the bottom of the spreader body and is used for positioning the two lifting lock mechanisms to align with a lifting position on the second member to be lifted.

10. The composite spreader of claim 1, wherein the first lifting device is provided in plurality and the second lifting device is provided in two, and the plurality of first lifting devices are disposed between the two second lifting devices.