Tray lifting appliance

Abstract

The utility model provides a tray lifting appliance, which relates to the technical field of lifting appliances for trays and comprises a square tube, symmetrically distributed prongs are arranged on the square tube, a connecting rod is vertically arranged in the middle of the square tube, a mounting rod is horizontally arranged at one end of the connecting rod, and a plurality of equidistantly distributed sawtooth grooves are formed in the bottom of the mounting rod; according to the device, the tray does not need to be mounted and hung on a hanging bracket and then is transferred through a crown block, so that the operation process is simplified and more convenient; when the tray is transferred, the tray is lowered, the hanging ring is replaced to the hanging position on the sawtooth groove, adjustment can be completed until the lifting appliance is in a balanced state in the tray transferring process, the tray does not need to be carried for balancing in the whole process, then the labor intensity is remarkably reduced, and the using effect of the tray lifting appliance is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slings for pallets, in particular to a sling for a pallet. Background Art

[0002] Currently, a number of workpieces to be processed need to be placed on a pallet first, and then the pallet is transferred at a fixed point to facilitate other subsequent processing procedures of the workpieces.

[0003] However, when lifting and transferring the pallet, it is necessary to first transfer the pallet to the lifting frame, and then use an overhead crane in conjunction with several hooks to realize the lifting and transfer of the lifting frame (the lifting frame is provided with several ears that cooperate with the hooks). This operation is not convenient enough. In addition, if the position of the pallet placed on the lifting frame deviates at the beginning, it will affect the stability and balance of the subsequent pallet lifting process. Then it is necessary to adjust the position of the pallet on the lifting frame to find the balance. Because the pallet is heavy, it is laborious to adjust the position and the labor intensity is high. In summary, the use effect of the pallet sling needs to be further improved. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose a pallet hanger.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A pallet hanger comprises a square tube, the square tube is provided with symmetrically distributed fork teeth, a connecting rod is vertically arranged in the middle of the square tube, a mounting rod is horizontally arranged at one end of the connecting rod, and a plurality of equidistantly distributed sawtooth grooves are opened at the bottom of the mounting rod.

[0007] The device does not need to first install and hang the pallet on the hanger and then use the overhead crane to carry out the transfer process. The operation process is simplified and more convenient. In addition, if the sling is not in a balanced state after lifting the pallet, the adjustment can be completed by lowering the pallet and replacing the hanging ring to the hanging position on the serrated groove until the sling is finally in a balanced state during the transfer of the pallet. There is no need to move the pallet to find the balance during the whole process, so the labor intensity is significantly reduced, and the use effect of the pallet sling is further improved.

[0008] Furthermore, a hanging ring is provided in one of the sawtooth grooves, and the hanging ring is connected to the anti-drop hook of the overhead travelling crane.

[0009] The above solution realizes the connection between the overhead crane and the hoisting device through the anti-drop hook and the hanging ring.

[0010] Furthermore, the connecting rod includes an outer rod and an inner rod slidingly matched with the inner part of the outer rod. The outer rod is vertically arranged in the middle of the square tube and a first fixing bolt is arranged on the outer rod. Several threaded holes are equidistantly arranged along the height direction of the inner rod. The first fixing bolt passes through the outer rod and is threadedly connected to one of the threaded holes.

[0011] Furthermore, handles are symmetrically arranged on the outer rod.

[0012] The above solution adjusts the height of the connecting rod to avoid the problem of obstruction between the pallet and the mounting rod caused by some large workpieces placed on the pallet. At the same time, when the fork teeth are placed into the fork groove of the pallet, the staff can grasp the handle to assist the sling in adjusting the position, which makes the operation more convenient.

[0013] Furthermore, a safety limit plate is provided at one end of the mounting rod.

[0014] In the above scheme, the safety limit plate can effectively reduce the probability of safety hazards caused by the hanging ring detaching from the serrated groove during the pallet lifting and transportation process, and the safety during the transportation process is further improved.

[0015] Furthermore, the square tube is symmetrically provided with a sliding sleeve, the sliding sleeve is provided with a second fixing bolt and a fork tooth, and a plurality of mounting holes are symmetrically opened on the square tube, and the second fixing bolt passes through the sliding sleeve and is threadedly connected to one of the mounting holes.

[0016] Furthermore, rubber pads are provided on the fork tines and the safety limit plate.

[0017] The above scheme can adjust the distance between the two fork teeth through the sliding sleeve and the second fixing bolt, so that pallets of various sizes can be transported smoothly and efficiently, and the adaptability is further improved. At the same time, arranging rubber pads on the fork teeth can reduce the wear between the pallet and the fork teeth and increase the friction between the two. Arranging rubber pads on the safety limit plate can reduce the probability of damage caused by a hard collision between the hanging ring and the safety limit plate in the event of a sudden safety hazard, thereby extending the service life of the entire sling.

[0018] Furthermore, a first reinforcing plate is provided at the connection between the square tube and the connecting rod, and a second reinforcing plate is provided at the connection between the connecting rod and the mounting rod.

[0019] Furthermore, the square tube, connecting rod, mounting rod and fork tine are all made of high-strength stainless steel.

[0020] The functions of the first reinforcing plate and the second reinforcing plate in the above scheme are to improve the overall connection support strength of the sling, and each connecting part is made of high-strength stainless steel, which is effectively corrosion-resistant and not easy to rust.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] Compared with the prior art, the present device does not need to first install and hang the pallet on the hanger and then use the overhead crane to carry out the transfer process. The operation process is simplified and more convenient. In addition, if the sling is not in a balanced state after lifting the pallet, the adjustment can be completed by lowering the pallet and replacing the hanging ring to the hanging position on the serrated groove until the sling is finally in a balanced state during the transfer of the pallet. There is no need to move the pallet to find balance during the whole process, so the labor intensity is significantly reduced, and the use effect of the pallet sling is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 Schematic diagram of the cooperation between the outer rod and the inner rod;

[0025] Reference numerals:

[0026] 1. Square tube; 2. Connecting rod; 21. Outer rod; 22. Inner rod; 23. First fixing bolt; 24. Threaded hole; 25. First reinforcing plate; 26. Second reinforcing plate; 3. Mounting rod; 4. Sawtooth groove; 5. Fork teeth; 6. Safety limit plate; 7. Sliding sleeve; 8. Second fixing bolt. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0028] like Figure 1 and Figure 2 As shown, a pallet hanger comprises a square tube 1, the square tube 1 is provided with symmetrically distributed fork teeth 5 and a connecting rod 2 is vertically arranged in the middle of the square tube 1, a mounting rod 3 is horizontally arranged at one end of the connecting rod 2, and a plurality of equidistantly distributed serrated grooves 4 are opened at the bottom of the mounting rod 3, one of the serrated grooves 4 is equipped with a hanging ring, and the hanging ring is connected to the anti-slip hook of the overhead crane. The overhead crane and the hanging ring are not shown in the figure, and the overhead crane belongs to the existing technology and no improvement is made.

[0029] Further refinement of the embodiment of the present utility model is as follows: Figure 1 As shown, a safety limit plate 6 is provided at one end of the mounting rod 3 away from the connecting rod 2 .

[0030] Further refinement of the embodiment of the present utility model is as follows: Figure 1 As shown, a first reinforcing plate 25 is provided at the connection between the square tube 1 and the connecting rod 2, a second reinforcing plate 26 is provided at the connection between the connecting rod 2 and the mounting rod 3, and the square tube 1, the connecting rod 2, the mounting rod 3 and the fork teeth 5 are all made of high-strength stainless steel. The functions of the first reinforcing plate 25 and the second reinforcing plate 26 are to improve the overall connection support strength of the sling, and each connecting part is made of high-strength stainless steel, which is effectively corrosion-resistant and not easy to rust.

[0031] The workflow of this utility model:

[0032] First, the crane drives the entire spreader to transfer position. At this time, the anti-drop hook of the crane is connected with a hanging ring, which cooperates with one of the serrated grooves 4 of the spreader to keep the entire spreader balanced before the pallet is placed and the fork teeth 5 do not touch the ground during the transfer process. When the spreader is close to the pallet to be hoisted, the crane drives the spreader to descend and the fork teeth 5 contact the ground. Then the fork teeth 5 of the manual auxiliary spreader are smoothly inserted into the fork groove at the bottom of the pallet. After the pallet is forked, the crane starts to rise slowly. Then it is necessary to immediately check whether the spreader is in a balanced state at this time. (It should be noted that the rising distance of the pallet is preset and the distance between it and the ground is kept at 3-5CM) If the sling is unbalanced at this time, the pallet needs to be placed on the ground again, and the hanging position of the hanging ring is changed immediately (that is, hung in another sawtooth groove 4). When the hoisting and hanging position of the crane on the sling changes, the pallet is lifted again according to the above process. If the sling is in a balanced state when driving the pallet to rise, the subsequent transportation process can be started. If it is still unbalanced, the above adjustment process is repeated again until the sling is in a safe and balanced lifting state when driving the pallet to rise. In the subsequent pallet lifting and transportation process, the safety limit plate 6 can effectively reduce the probability of safety hazards caused by the hanging ring detaching from the sawtooth groove 4, and the safety during the transportation process is further improved;

[0033] Compared with the prior art, the present device does not need to first install and hang the pallet on the hanger and then use the overhead crane to carry out the transfer process. The operation process is simplified and more convenient. In addition, if the sling is not in a balanced state after lifting the pallet, the adjustment can be completed by lowering the pallet and replacing the hanging ring to the hanging position on the serrated groove 4 until the sling is finally in a balanced state during the transfer of the pallet. There is no need to move the pallet to find balance during the whole process, so the labor intensity is significantly reduced, and the use effect of the pallet sling is further improved.

[0034] In some embodiments, Figure 2As shown, the connecting rod 2 includes an outer rod 21 and an inner rod 22 that is slidably matched with the inner part of the outer rod 21. The outer rod 21 is vertically arranged in the middle of the square tube 1 and a first fixing bolt 23 is arranged on the outer rod 21. A plurality of threaded holes 24 are equidistantly arranged along the height direction of the inner rod 22. The first fixing bolt 23 passes through the outer rod 21 and is threadedly connected to one of the threaded holes 24.

[0035] The above embodiment is further optimized in that handles are symmetrically provided on the outer rod 21, which are not shown in the figure. This embodiment avoids the problem of obstruction between the pallet and the mounting rod 3 caused by some large workpieces placed on the pallet by adjusting the height of the connecting rod 2. At the same time, when the fork teeth 5 are placed in the fork groove of the pallet, the staff can grasp the handle to assist the sling in adjusting the direction, which makes the operation more convenient.

[0036] In other embodiments, Figure 2 As shown, a sliding sleeve 7 is symmetrically arranged on the square tube 1, a second fixing bolt 8 and a fork tine 5 are arranged on the sliding sleeve 7, and a plurality of mounting holes are symmetrically opened on the square tube 1, and the second fixing bolt 8 passes through the sliding sleeve 7 and is threadedly connected to one of the mounting holes;

[0037] The above-mentioned embodiment is a further optimization of the scheme, in which rubber pads are provided on the fork teeth 5 and the safety limit plate 6, which are not shown in the figure; this embodiment can adjust the distance between the two fork teeth 5 through the sliding sleeve 7 in cooperation with the second fixing bolt 8, so that pallets of various sizes can be transported smoothly and efficiently, and the adaptability is further improved. At the same time, arranging rubber pads on the fork teeth 5 can reduce the wear between the pallet and the fork teeth 5 and increase the friction between the two. Arranging rubber pads on the safety limit plate 6 can reduce the probability of damage caused by a hard collision between the hanging ring and the safety limit plate 6 in the event of a sudden safety hazard, thereby extending the service life of the entire sling.

[0038] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pallet spreader, characterized in that: The invention comprises a square tube (1), the square tube (1) is provided with symmetrically distributed fork teeth (5), a connecting rod (2) is vertically arranged in the middle of the square tube (1), a mounting rod (3) is horizontally arranged at one end of the connecting rod (2), and a plurality of equidistantly distributed sawtooth grooves (4) are opened at the bottom of the mounting rod (3).

2. A pallet hanger according to claim 1, characterized in that: A hanging ring is provided in one of the sawtooth grooves (4), and the hanging ring is connected to an anti-drop hook of the overhead travelling crane.

3. A pallet hanger according to claim 1, characterized in that: The connecting rod (2) comprises an outer rod (21) and an inner rod (22) slidably matched with the inner part of the outer rod (21); the outer rod (21) is vertically arranged in the middle of the square tube (1) and a first fixing bolt (23) is arranged on the outer rod (21); a plurality of threaded holes (24) are equidistantly arranged along the height direction of the inner rod (22); the first fixing bolt (23) passes through the outer rod (21) and is threadedly connected to one of the threaded holes (24).

4. A pallet hanger according to claim 3, characterized in that: The outer rod (21) is symmetrically provided with handles.

5. A pallet hanger according to claim 1, characterized in that: A safety limit plate (6) is provided at one end of the installation rod (3).

6. A pallet hanger according to claim 1, characterized in that: The square tube (1) is symmetrically provided with a sliding sleeve (7), the sliding sleeve (7) is provided with a second fixing bolt (8) and a fork tooth (5), and the square tube (1) is symmetrically provided with a plurality of mounting holes, the second fixing bolt (8) passes through the sliding sleeve (7) and is threadedly connected to one of the mounting holes.

7. A pallet hanger according to claim 5, characterized in that: The fork teeth (5) and the safety limit plate (6) are both provided with rubber pads.

8. The pallet hanger according to claim 1, characterized in that: A first reinforcing plate (25) is provided at the connection between the square tube (1) and the connecting rod (2), and a second reinforcing plate (26) is provided at the connection between the connecting rod (2) and the mounting rod (3).

9. The pallet spreader according to claim 1, characterized in that: The square tube (1), the connecting rod (2), the mounting rod (3) and the fork tine (5) are all made of high-strength stainless steel.

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