Universal lifting appliance

Abstract

The utility model relates to a universal lifting appliance, and belongs to the technical field of lifting appliances. The universal lifting appliance comprises a main beam, transmission shaft assemblies, sliding assemblies and supporting arms, the sliding assemblies are located at the two ends of the main beam and are slidably connected to the main beam, the transmission shaft assemblies are installed on the main beam, are in transmission connection with the sliding assemblies and are used for driving the sliding assemblies to slide in the axial direction of the main beam, and the supporting arms are installed on the sliding assemblies. The supporting arm can slide along with sliding of the sliding assembly. A lifting ring is arranged on the main beam and is positioned in the main beam; universal wheels are arranged at the bottoms of the sliding assemblies; the supporting arm is installed on the sliding assembly in a foldable mode. And a plurality of hoisting positions are arranged on the support arms along the width direction of the main beam. According to the universal lifting appliance, the lifting span and width can be adjusted, and the universal lifting appliance is suitable for lifting operation of goods of different specifications; the overall height of the hanger is reduced and the storeroom plot ratio is improved; in a non-working state, the lifting appliance can be folded and is convenient to store.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lifting tools, in particular to a universal lifting tool. BACKGROUND

[0002] In the process of lifting materials, especially military materials, the current technology faces many challenges. One of the significant problems is the non-universality of lifting tools, which directly restricts the improvement of operation efficiency. Many military materials have to rely on traditional tools such as nylon ropes for lifting due to the lack of specially designed lifting tools. This approach not only leads to a large distance between the materials and the lifting point, thereby wasting valuable vertical space, but also is particularly prominent in some old buildings with limited height. Due to insufficient space utilization, the number of stacked layers of materials is often lower than the maximum allowed number of stacked layers, thereby reducing the utilization rate of warehouse capacity and causing significant negative impact on military economic benefits.

[0003] Although some universal lifting tools exist in the market, they also have deficiencies in the application process. Specifically, these universal lifting tools may still cause waste of height space during lifting, and due to their more complex structural design compared to special lifting tools or nylon lifting ropes, the lifting tools themselves are heavier and larger in size. This not only increases the difficulty of reloading and transportation, but also is not convenient for storage in a non-operation state. Therefore, there is an urgent need for a new universal lifting tool. CONTENT OF THE INVENTION

[0004] Therefore, the present application provides a universal lifting tool which can improve lifting efficiency, effectively utilize warehouse space, and facilitate operation and maintenance, thereby effectively overcoming the defects of the prior art.

[0005] The present application provides a universal lifting tool, which comprises a main beam, a transmission shaft assembly, a sliding assembly, and a support arm. The sliding assembly is located at both ends of the main beam and is slidingly connected to the main beam. The transmission shaft assembly is installed on the main beam and is in transmission connection with the sliding assembly, for driving the sliding assembly to slide along the axial direction of the main beam. The support arm is installed on the sliding assembly and can slide with the sliding of the sliding assembly. A lifting ring is provided on the main beam and located inside the main beam. A universal wheel is provided at the bottom of the sliding assembly. The support arm is foldably installed on the sliding assembly. A plurality of lifting positions are provided on the support arm along the width direction of the main beam.

[0006] Preferably, the main beam comprises a beam body, end covers are provided at both ends of the beam body, and a through hole is provided at the center position of each end cover. The transmission shaft assembly comprises a transmission shaft, a hand crank is connected to one end of the transmission shaft, and threads are provided on the transmission shaft along the axial direction thereof. The sliding assembly comprises a support arm seat, the support arm seat is sleeved on the beam body, a sliding block is provided inside the support arm seat, and a threaded hole is formed in the sliding block.

[0007] The end of the transmission shaft away from the hand wheel penetrates the through hole of the end cover and is screwed with the threaded hole of the sliding block to realize the screw-nut pair connection between the transmission shaft and the sliding block.

[0008] Preferably, the main beam further comprises guide rails, and the four sides of the beam body are provided with guide rails in the axial direction; two convex strips are arranged on the both sides of the beam body in the width direction; and the convex strips coincide with the guide rails in the height position.

[0009] Preferably, the sliding block further comprises a boss, the boss is located at the both ends of the sliding block; guide grooves are further arranged on the both sides of the beam body in the width direction; and the boss penetrates the guide grooves and extends out of the side plate of the beam body to be fixed on the beam body.

[0010] Preferably, the arm further comprises a plane, the plane is located at the end of the arm body facing the beam body, and the plane is matched with the boss on the sliding block.

[0011] Preferably, the arm base further comprises a stud, the stud is arranged on the both sides of the arm body; a U-shaped hole is further arranged on the plane of the arm; and the height position of the stud is matched with the U-shaped hole.

[0012] Preferably, a relief hole is further arranged on the plane of the arm, and the height position of the relief hole is matched with the boss.

[0013] Preferably, the arm base comprises a first connecting hole, the first connecting hole is arranged on the end face of the arm base in the height direction, the arm comprises an arm body, and a plurality of second connecting holes are arranged on the arm body in the axial direction;

[0014] The first connecting hole, the second connecting hole, and the screw and the nut are matched to realize the folding connection between the arm body and the arm base.

[0015] Preferably, a support surface is further arranged on the arm, the support surface is located above the second connecting hole and is arranged uniformly along the axial direction of the arm body.

[0016] Preferably, a plurality of limiting holes are further arranged on the arm base and are arranged uniformly along the width direction of the arm base; a plurality of fixing holes are arranged on the support surface of the arm and are arranged uniformly along the width direction of the arm; and the limiting hole, the fixing hole, and the threaded rod and the nut are matched to realize the limiting of the arm and the arm base.

[0017] Compared with the prior art, the application has the following beneficial effects:

[0018] (1) the lifting appliance of the present application is composed of one main beam and four supporting arms, the supporting arms are installed on the sliding assembly perpendicularly to the main beam, the sliding assembly can realize span adjustment under the control of the hand wheel; a plurality of lifting positions are arranged on each supporting arm, the lifting width can be adjusted by selecting different lifting positions, and the lifting span and width can be adjusted, so that the lifting operation of goods of different specifications can be realized;

[0019] (2) the lifting ring position of the present application is located inside the lifting appliance, which avoids the height waste caused by arranging the lifting ring on the main beam, effectively reduces the overall height of the lifting appliance, reduces the height occupied by the lifting appliance during the operation in the warehouse, can increase the stacking layers of goods, and improves the warehouse volume rate;

[0020] (3) the supporting arm of the present application can rotate relative to the fixed point, and the lifting appliance can be folded in the non-operation state, so as to facilitate storage;

[0021] (4) the bottom of the present application is provided with a plurality of universal wheels, which facilitates the movement of the lifting appliance and can avoid the lifting and carrying operation of the operator during the replacement of the lifting appliance. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the present application or the prior art. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0023] Figure 1 it is the structure schematic diagram of the general lifting appliance of the present application in the operation unfolded state;

[0024] Figure 2 it is the structure schematic diagram of the main beam in the general lifting appliance of the present application;

[0025] Figure 3 it is the structure schematic diagram of the transmission shaft assembly in the general lifting appliance of the present application;

[0026] Figure 4 it is the structure schematic diagram of the sliding assembly in the general lifting appliance of the present application;

[0027] Figure 5 it is the structure schematic diagram of the supporting arm in the general lifting appliance of the present application;

[0028] Figure 6 it is the structure schematic diagram of the general lifting appliance of the present application in the storage folded state.

[0029] EXPLANATION OF DRAWINGS:

[0030] 1, main beam;

[0031] 11, beam body; 12, end cover; 13, through hole; 14, lifting ring; 15, guide rail; 16, guide groove;

[0032] 2, transmission shaft assembly;

[0033] 21, hand wheel; 22, transmission shaft;

[0034] 3, sliding assembly;

[0035] 31, sliding block;

[0036] 311, threaded hole; 312, boss;

[0037] 32, support arm base;

[0038] 321, first connecting hole; 322, ridge; 323, stud; 324, universal wheel; 325, limiting hole;

[0039] 4, support arm;

[0040] 41, arm body; 42, second connecting hole; 43, plane; 44, U-shaped hole; 45, avoidance hole; 46, lifting position; 47, support surface; 48, fixing hole. DETAILED DESCRIPTION

[0041] To make the purpose, technical scheme and advantages of the present application clearer, the technical scheme of the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can adjust them as needed in order to adapt to specific application occasions.

[0043] Secondly, it should be noted that in the description of the present application, the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer" and the like indicate the direction or positional relationship of the terms based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0044] As Figure 1As shown, the embodiment of the present application provides a kind of general lifting appliance, including main beam 1, transmission shaft assembly 2, sliding assembly 3 and support arm 4, sliding assembly 3 is equipped with two groups, and each group sliding assembly 3 is located at the two ends of main beam 1, and sliding assembly 3 is slidably connected on main beam 1, transmission shaft assembly 2 is also provided with two groups, and two groups transmission shaft assembly 2 are respectively installed at the two ends of main beam 1, and transmission shaft assembly 2 is drivingly connected with sliding assembly 3, for driving sliding assembly 3 along the axial sliding of main beam 1, support arm 4 is equipped with two groups, and two groups support arm 4 are respectively installed on two sliding assemblies 3, support arm 4 can slide along with the sliding of sliding assembly 3, by the axial sliding of support arm 4 along main beam 1, to realize the adjustment of lifting appliance hoisting span.

[0045] Specifically, as Figure 2 Shown, main beam 1 includes beam body 11, end cover 12, through hole 13, lifting eye 14, beam body 11 is preferably rectangular box structure, beam body 11 two ends are equipped with end cover 12, and end cover 12 center position is equipped with through hole 13;Beam body 11 one side intermediate position is equipped with lifting eye 14, and lifting eye 14 is located inside beam body 11, thereby effectively reducing hoisting height.

[0046] As Figure 3 Shown, transmission shaft assembly 2 includes hand wheel 21, transmission shaft 22, and transmission shaft 22 one end is connected with hand wheel 21, and transmission shaft 22 is equipped with screw thread along its axial direction.

[0047] As Figure 4 Shown, sliding assembly 3 includes sliding block 31 and support arm seat 32, support arm seat 32 is two opposite face opening rectangular box structure, and the size of support arm seat 32 is matched with the size of beam body 11, to make support arm seat 32 can be just set on beam body 11, sliding block 31 is located inside support arm seat 32 intermediate position, and its two ends are fixed on the two opposite sides of support arm seat 32, while sliding block 31 center position is equipped with threaded hole 311.

[0048] Specifically, when support arm seat 32 is set on beam body 11, sliding block 31 is also located inside beam body 11, at this time, the end of transmission shaft 22 away from hand wheel 21 penetrates through hole 13 on end cover 12 and is matched with threaded hole 311 on sliding block 31 through screw thread thereon to realize screw-nut pair connection between transmission shaft 22 and sliding block 31, when rotating hand wheel 21, hand wheel 21 drives transmission shaft 22 to rotate, since screw-nut pair connection between transmission shaft 22 and sliding block 31, the rotational movement of transmission shaft 22 is converted into the translational movement of sliding block 31, to realize the translational movement of entire sliding assembly 3, i.e. realize the axial sliding of sliding assembly 3 along main beam 1.

[0049] Specifically, the arm seat 32 comprises a first connecting hole 321, which is arranged on one end surface of the arm seat 32 along the height direction, and a plurality of first connecting holes 321 are uniformly arranged along the axial direction of the arm seat 32.

[0050] As shown in Figure 5 , the arm 4 comprises an arm body 41 and a second connecting hole 42, the arm 4 is provided with two groups, each group of arms 4 comprises two arm bodies 41, i.e. four arm bodies 41, a plurality of second connecting holes 42 are arranged on the arm body 41 along the width direction of the arm body 41, the first connecting hole 321, the second connecting hole 42 and the cooperation of the bolt and the nut (not shown in the figure) are used to realize the rotatable connection between the arm body 41 and the arm seat 32, i.e. the arm body 41 can rotate around the bolt outside the periphery of the beam body 11, and based on the limiting effect of the shape of the beam body 11 and the arm body 41, the rotation angle of the arm body 41 is preferably 90°.

[0051] Exemplarily, when the arm body 41 is rotated to the state as shown in Figure 1 , it is the unfolded state in working time; when the arm body 41 is rotated to the state as shown in Figure 6 , it is the folded state in storage time. Among them, the four arm bodies 41 are located on the side surface of the beam body 11 in the unfolded state, rather than below the beam body, which can effectively reduce the height waste.

[0052] Specifically, in combination with Figure 1 , Figure 2 , Figure 4 , the main beam 1 further comprises a guide rail 15, two guide rails 15 are arranged on each of the four side surfaces of the beam body 11, and the guide rails 15 are arranged along the axial direction of the beam body 11; two convex strips 322 are arranged on the width direction of the arm seat 32. After the sliding assembly 3 is installed on the main beam 1, the two convex strips 322 are coincided with the guide rails 15 on the width direction of the beam body 11, and through the cooperation of the convex strips 322 and the guide rails 15, the functions of guiding and facilitating sliding are realized.

[0053] In combination with Figure 1 , Figure 2 and Figure 4 , the sliding block 31 further comprises a boss 312, which is located at both ends of the sliding block 31; the beam body 11 further comprises a guide groove 16 on the width direction of the beam body 11, which is preferably arranged between the two guide rails 15 and also arranged along the axial direction of the beam body 11. The boss 312 penetrates the guide groove 16 and extends out of the side plate of the arm seat 32, so as to be fixed on the arm seat 32, and through the cooperation of the boss 312 and the guide groove 16, the guiding and limiting functions of the sliding assembly 3 are realized.

[0054] In combination with Figure 1 , Figure 4 and Figure 5As shown, the arm 4 is further provided with a plane 43 at the end of the arm body towards the beam body 11, which cooperates with the boss 312 on the slider 31 to realize the transmission of the starting gravity.

[0055] In combination with Figure 1 , Figure 4 and Figure 5 , the arm seat 32 further comprises studs 323 arranged on both sides of the arm body 41; the plane 43 of the arm 4 is further provided with a U-shaped hole 44; the height position of the stud 323 is matched with the U-shaped hole 44. The arm 4 is fixed by the stud 323 through the U-shaped hole 44 on the arm 4 and a nut (not shown in the figure), so that the limiting in the working unfolded state of the arm 4 can be realized.

[0056] In combination with Figure 1 , Figure 4 , Figure 5 , the plane 43 of the arm 4 is further provided with a relief hole 45. When the arm 4 is in the working unfolded state, the relief hole 45 can be used to avoid the boss 312.

[0057] As shown in Figure 4 , the bottom of the arm seat 32 is further provided with a plurality of universal wheels 324 for short-distance transfer operation of the spreader.

[0058] As shown in Figure 5 , the arm 4 is uniformly provided with a plurality of lifting positions 46 along the width direction of the beam body 11. By selecting a suitable lifting position 46 and installing a chain, the adjustment of the lifting width can be realized.

[0059] Specifically, the adjustable lifting span and width can be suitable for lifting operations of different specifications of goods.

[0060] As shown in Figure 5 , in combination with Figure 6 , the arm 4 is further provided with a support surface 47, which is located above the second connecting hole 42 and is uniformly arranged along the axial direction of the arm body 41. When the arm 4 is in the folded state, the support surface 47 can realize the support and limiting of the arm 4.

[0061] Specifically, the arm seat 32 is further provided with a plurality of limiting holes 325, which are uniformly arranged along the width direction of the arm seat 32; the support surface 47 of the arm 4 is further provided with a plurality of fixing holes 48, which are uniformly arranged along the width direction of the arm 4; when the arm 4 is in the folded state, the limiting hole 325 cooperates with the fixing hole 48 and is connected by a threaded rod and a nut, so as to realize the limiting of the arm 4 in the folded state.

[0062] The working principle of the universal spreader of the embodiment is as follows:

[0063] In the lifting operation, the spreader boom 4 is unfolded as shown in Figure 1 The nut is screwed on the stud 323 to limit the rotational movement of the boom 4, the hand wheels 21 at both ends are rotated respectively to rotate the transmission shaft 22 and further move the sliding assembly 3, thereby adjusting the lifting span; the appropriate lifting position 46 on the boom 4 is selected and the chain is installed, thereby adjusting the lifting width; the hook of the crane is connected with the lifting ring 14 to connect the power of the crane with the lifted materials. Since the lifting ring 14 is inside the spreader, the lifting height space is saved; after the lifting operation is completed, the spreader is placed on the ground and the universal wheels 324 are in contact with the ground, at this time the spreader can be directly pushed to move, thereby saving time and effort to realize the short distance transfer of the spreader; when the spreader has no operation task and needs to be stored in the warehouse, the nut on the stud 323 can be removed and the four arm bodies are folded to be inserted into the screw rod and tightened the pitch, thereby reducing the storage space of the spreader. Figure 6

[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.​

Claims

1. A universal spreader, characterized by, The utility model provides a crane, including main beam, transmission shaft assembly, sliding assembly and branch, sliding assembly is located two ends of main beam and is connected on main beam slidingly, transmission shaft assembly is installed on main beam and is connected with sliding assembly transmission, is used for driving sliding assembly along the axial sliding of main beam, branch is installed on sliding assembly, and branch can slide along with the sliding of sliding assembly, and main beam is equipped with the lifting ring in the inside of main beam, and the bottom of sliding assembly is equipped with universal wheel, and branch can be folded and is installed on sliding assembly, and branch is equipped with a plurality of hoisting positions along the width direction of main beam.

2. The universal spreader of claim 1, wherein, The main beam comprises a beam body, the beam body is provided with an end cover at both ends, and the center of the end cover is provided with a through hole; the transmission shaft assembly comprises a transmission shaft, one end of the transmission shaft is connected with a hand wheel, and the transmission shaft is provided with a thread along the axial direction; the sliding assembly comprises a branch arm seat, the branch arm seat is sleeved on the beam body, and the inside of the branch arm seat is provided with a sliding block, and the sliding block is provided with a threaded hole; One end of the transmission shaft away from the hand wheel penetrates the through hole of the end cover and is matched with the threaded hole of the sliding block through the thread thereon to realize the screw-nut pair connection between the transmission shaft and the sliding block.

3. The universal spreader of claim 2, wherein, The main beam further comprises guide rails, and the four sides of the beam body are provided with guide rails along the axial direction; the branch arm seat is provided with two convex strips on both sides in the width direction; the convex strips coincide with the guide rails in the height position.

4. The universal spreader of claim 2, wherein, The sliding block further comprises a boss, and the boss is located at both ends of the sliding block; both sides of the beam body in the width direction are further provided with guide grooves; the boss penetrates the guide grooves and extends out of the side plate of the branch arm seat to be fixed on the branch arm seat.

5. The universal spreader of claim 4, wherein, The branch arm further comprises a flat surface, and the flat surface is located at the end of the arm body facing the beam body; the flat surface is matched with the boss on the sliding block.

6. The universal spreader of claim 5, wherein, The branch arm seat further comprises studs, and the studs are arranged on both sides of the arm body; the flat surface of the branch arm is further provided with a U-shaped hole; the height position of the stud is matched with the U-shaped hole.

7. The universal spreader of claim 6, wherein, The flat surface of the branch arm is further provided with a relief hole, and the height position of the relief hole is matched with the boss.

8. The universal spreader of claim 2, wherein, The branch arm seat comprises a first connecting hole, and the first connecting hole is arranged on the end face of the branch arm seat in the height direction; the branch arm comprises an arm body, and a plurality of second connecting holes are arranged on the arm body along the axial direction; The first connecting hole, the second connecting hole, the screw, and the nut are matched to realize the folding connection between the arm body and the branch arm seat.

9. The universal spreader of claim 8, wherein, The branch arm is further provided with a support surface, and the support surface is located above the second connecting hole and is uniformly arranged on the arm body along the axial direction.

10. The universal spreader of claim 9, wherein, The branch arm seat is further provided with a plurality of limiting holes, and the limiting holes are uniformly arranged along the width direction of the branch arm seat; the support surface of the branch arm is provided with a plurality of fixing holes, and the fixing holes are uniformly arranged along the width direction of the branch arm; the limiting hole, the fixing hole, the threaded rod, and the nut are matched to realize the limiting of the branch arm and the branch arm seat.

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