Towing hook structure of lifting handling device and lifting handling device

Abstract

The utility model discloses a lifting and carrying equipment's tow hook structure and lifting and carrying equipment, set up on liftable bracket, including by a plurality of tow hooks arrangement combination formed anti -drop part, tow hook is set as when being under pressure elastic contraction and after the disappearance of under pressure can elastic reset, when lifting the object that is carried through the bracket, by a plurality of tow hooks arrangement combination formed anti -drop part has greater range can with the hole or recess of the bottom of the object that is carried opposite, thereby make anti -drop part can adapt more different shape and different size of the object that is carried, the bracket elevates and makes with the hole or recess opposite tow hook can be clamped into the hole or recess of the bottom of the object that is carried in, prevent the object that is lifted by the bracket and slip off, and the tow hook that is not with the hole or recess opposite is because can elastic expansion and contraction, it will be under pressure back contraction of the bottom of the object, avoid the bottom of the object, prevent the object that is carried and lift, improve the security of carrying.

Description

Technical Field

[0001] This utility model relates to a handling device, and more particularly to a traction hook structure and a lifting and handling device. Background Technology

[0002] Lifting and handling equipment is frequently used in factory workshops, warehouses, and other places for handling goods, especially for large and heavy items. Manual handling is laborious and inefficient, while using handling vehicles enables batch handling, saving labor and time. There are many types of handling vehicles, including manual handling vehicles, semi-electric handling vehicles, and fully electric handling vehicles, but commonly used handling vehicles are large in size and complex in structure.

[0003] Therefore, a small, reliable, and convenient lifting and transporting vehicle has emerged on the market, such as the lifting and transporting vehicle disclosed in patent CN208615966U. This lifting and transporting vehicle includes a frame, handle, lifting frame, rollers, ratchet mechanism, transmission components, and bracket. The handle is installed on the upper part of the frame, and the rollers are located on one side of the bottom of the frame. When the frame is upright, the bottom of the frame is in contact with the ground. The lifting frame is movably mounted on the frame, and the ratchet mechanism is mounted on the frame. The transmission components connect the ratchet mechanism and the lifting frame together. The bracket is connected to the bottom of the lifting frame and rises and falls with the lifting frame. The ratchet mechanism is equipped with an operating lever. Rotating the operating lever in different directions can raise or lower the lifting frame through the transmission components, causing the bracket and the goods on it to rise and fall together.

[0004] In the aforementioned lifting and transporting vehicle structure, when goods are lifted and transported via the bracket, the goods are prone to slipping off the flat surface of the bracket. To solve this problem, the art has adopted a method of setting protruding anti-slip hooks on the bracket. The hooks are locked at the bottom of the object to prevent the object from slipping off the bracket during transport. For example, the lifting and transfer vehicle disclosed in patent CN201400549Y has a base unit with front support rollers and a pair of spaced fork-shaped forward extension structures at its tail. A set of lifting guide rails is provided, and a set of lifting fork structures that can move up and down along the lifting guide rails under the drive mechanism and extend forward in conjunction with the fork-shaped forward extension structures on the base unit are engaged in the lifting guide rails. The fork extension structure of the lifting fork structure is inclined inward with its end higher than its root, or it has an anti-slip structure at its end.

[0005] Lifting and handling equipment inserts a bracket under the object during transport. By raising the bracket, the object is lifted off the ground. Simultaneously, an anti-detachment hook on the bracket engages with a hole or recess on the bottom of the object to achieve a limiting effect. However, because the objects being transported are often of different shapes and sizes, or the position of the bracket under the object cannot be guaranteed to be uniform, it is difficult for the anti-detachment hook to be precisely aligned with the hole or recess on the bottom of the object when the bracket is raised. In this case, the anti-detachment hook cannot engage with the hole or recess on the bottom of the object to achieve a limiting effect, and the anti-detachment hook will also push against the bottom of the object, causing the object to tilt and affecting the transport. Existing solutions include repeatedly adjusting the position of the bracket under the object and raising and lowering the bracket to engage the anti-detachment hook, or repeatedly disassembling and adjusting the position of the anti-detachment hook on the bracket to align the hook with the hole or recess on the bottom of the object. However, these methods are not very convenient to adjust. Utility Model Content

[0006] Based on the problem that the single anti-detachment hook on the aforementioned bracket cannot adequately adapt to different shapes and sizes, this utility model provides a traction hook structure for a lifting and transporting device and the lifting and transporting device itself.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a traction hook structure for lifting and transporting equipment, which is set on a liftable bracket, including an anti-detachment part formed by multiple traction hooks arranged in combination. The traction hook is configured to elastically retract when subjected to downward pressure and elastically return to its original position after the downward pressure disappears.

[0008] A further preferred embodiment of this utility model is that the anti-detachment part is provided in two sets, and the two sets of anti-detachment parts are respectively arranged on the left and right sides of the bracket.

[0009] A further preferred technical solution of this utility model is: multiple traction hooks that form the anti-detachment part are arranged in multiple rows from left to right, and the traction hooks in each row are staggered.

[0010] A further preferred technical solution of this utility model is: the anti-detachment parts on the left and right sides of the bracket are composed of the same number of traction hooks, and the traction hooks on both sides are symmetrically arranged.

[0011] A further preferred embodiment of this utility model is as follows: the bracket includes a square support plate, and two sets of anti-detachment parts are arranged on the left and right sides of the support plate.

[0012] A further preferred embodiment of this utility model is: the bracket includes two forks, and two sets of anti-detachment parts are respectively disposed on the two forks.

[0013] A further preferred embodiment of this invention is that the traction hook is an elastically extendable spring plunger.

[0014] A further preferred technical solution of this utility model is as follows: the bracket is provided with an installation hole for installing a spring plunger, the outer wall of the spring plunger is provided with a threaded part, the spring plunger passes through the installation hole and is externally threaded with an upper limit nut and a lower limit nut, the upper limit nut and the lower limit nut are respectively limited on the upper and lower sides of the bracket.

[0015] A further preferred embodiment of this utility model is as follows: the bracket is provided with an anti-slip rubber block, and the height of the traction hook when it is compressed and retracted to its limit position is equal to or lower than the top surface of the anti-slip rubber block.

[0016] Another subject: Lifting and transporting equipment, including a wheeled frame, a bracket, and a traction hook structure for lifting and transporting equipment, wherein the bracket is mounted on the frame in a liftable manner, and the frame is equipped with a lifting drive device for driving the bracket to lift and lower.

[0017] Compared with the prior art, the advantage of this utility model is that it sets an anti-slip part on the bracket, which is formed by the arrangement of multiple traction hooks. The traction hooks are designed to elastically retract when subjected to downward pressure and elastically return to their original position after the downward pressure is removed. When the object being transported is lifted by the bracket, the anti-slip part formed by the arrangement of multiple traction hooks has a larger range to align with the holes or recesses on the bottom of the object being transported. This allows the anti-slip part to adapt to more objects of different shapes and sizes. When the bracket is raised, the traction hooks that are aligned with the holes or recesses can be engaged in the holes or recesses on the bottom of the object being transported, preventing the object being lifted by the bracket from slipping. The traction hooks that are not aligned with the holes or recesses can elastically extend and retract, and will be pressed back by the bottom of the object, avoiding the bottom of the object and preventing the object being transported from being lifted, thus improving the safety of transport. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a structural diagram of the bracket; Figure 2 A top view of the bracket; Figure 3 This is a cross-sectional diagram of the bracket; Figure 4 Diagram showing the usage state when the bracket is supporting an object.

[0020] In the diagram: 1. Bracket; 2. Traction hook; 3. Anti-slip rubber block; 4. Support plate; 5. Anti-detachment part; 6. Upper limit nut; 7. Mounting hole; 8. Lower limit nut; 9. Hole or recess; 10. Object. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0023] Figures 1-4 As shown, the lifting and handling equipment includes a wheeled frame, a bracket 1, and a towing hook structure. The bracket 1 is vertically mounted on the frame, and the frame is equipped with a lifting drive device to drive the bracket 1 to move up and down. The lifting drive device drives the bracket 1 to move up and down, so that the bracket 1 can be used to lift the object 10 to be transported, such as a logistics trolley. The lifting drive device is a conventional structure existing in the art, such as an electrically controlled lifting drive device, or other lifting drive devices such as hydraulic cylinders or pneumatic cylinders.

[0024] The traction hook structure is set on the liftable bracket 1. The traction hook structure includes an anti-detachment part 5 formed by the arrangement of multiple traction hooks 2. The traction hook 2 is configured to elastically retract when subjected to downward pressure and elastically return to its original position after the downward pressure is removed.

[0025] Figure 4 As shown, when the object 10 being transported is lifted by the bracket 1, the anti-slip part 5, which is formed by the arrangement of multiple traction hooks 2, has a larger range to align with the hole or recess 9 at the bottom of the object 10 being transported. This allows the anti-slip part 5 to adapt to more objects 10 of different shapes and sizes. The bracket 1 is raised so that the traction hooks 2 that are aligned with the hole or recess 9 can be engaged in the hole or recess 9 at the bottom of the object 10 being transported, thus preventing the object 10 being lifted by the bracket 1 from slipping. The traction hooks 2 that are not aligned with the hole or recess 9 can elastically extend and retract, and will be pressed down and retracted by the bottom of the object 10, thus avoiding the bottom of the object 10 and preventing the object 10 being transported from being lifted, thereby improving the safety of transport.

[0026] The handling process involves first controlling the bracket 1 to descend below the bottom of the object 10 being transported, then moving the frame forward so that the bracket 1 is positioned below the object 10. Next, the bracket 1 is raised. During this raising process, the traction hook 2, which is opposite to the hole or recess 9 at the bottom of the object 10, engages in the hole or recess 9 to achieve a limit. Other traction hooks 2 contact the bottom of the object 10 and are compressed, causing the traction hooks 2 to retract. The bracket 1 then rises to lift the object 10 away from the placement surface. At this point, the lifted object 10 can be transported by moving the frame.

[0027] Figure 1 , Figure 2 As shown, the anti-detachment part 5 is provided in two sets. The two sets of anti-detachment parts 5 are respectively set on the left and right sides of the bracket 1, which restrict the left and right sides of the object 10 being transported, making the transport process more stable.

[0028] The anti-detachment parts 5 on both sides of the bracket 1 are composed of the same number of traction hooks 2, and the traction hooks 2 on both sides are symmetrically arranged.

[0029] For example, bracket 1 includes a square support plate 4, which is used to lift the object 10 being transported, and the two sets of anti-detachment parts 5 are arranged on the left and right sides of the support plate 4.

[0030] Alternatively, the bracket 1 includes two forks, which serve as the support for lifting the object 10 being transported. The two sets of anti-detachment parts 5 are respectively provided on the two forks.

[0031] Multiple traction hooks 2 that form the anti-detachment part 5 are arranged in multiple rows from left to right, with each row of traction hooks 2 staggered front to back.

[0032] For example, in this embodiment, there are 8 traction hooks 2 that make up a set of anti-detachment parts 5. The 8 traction hooks 2 are arranged in three rows, with 3, 3 and 2 hooks in each row from the outside to the inside, and the traction hooks 2 in each row are staggered.

[0033] The traction hook 2 is a spring plunger that can be elastically extended and retracted. The spring plunger is a conventional structure and can be referenced from the brand QiZHAN, model PJH3 spring plunger.

[0034] Figure 3 As shown, the bracket 1 is provided with a mounting hole 7 for installing a spring plunger. The outer wall of the spring plunger is provided with a threaded part. The spring plunger passes through the mounting hole 7 and is externally threaded with an upper limit nut 6 and a lower limit nut 8. The upper limit nut 6 and the lower limit nut 8 are respectively limited on the upper and lower sides of the bracket 1, so that the spring plunger is fixed on the bracket 1.

[0035] The bracket 1 is equipped with anti-slip rubber blocks 3. When the traction hook 2 is compressed and retracted to its limit position, its height is equal to or lower than the top surface of the anti-slip rubber block 3, so that the traction hook 2 will not affect the contact between the transported object 10 and the anti-slip rubber block 3. The anti-slip rubber block 3 can increase the resistance to the sliding of the transported object 10.

[0036] The foregoing has described the traction hook structure and the lifting and transporting equipment provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A traction hook structure for a lifting and transporting device, mounted on a liftable bracket, characterized in that, It includes an anti-detachment part formed by a combination of multiple traction hooks, wherein the traction hooks are configured to elastically retract when subjected to downward pressure and elastically return to their original position after the downward pressure is removed.

2. The traction hook structure of the lifting and conveying equipment according to claim 1, characterized in that, The anti-detachment part is provided in two sets, and the two sets of anti-detachment parts are respectively set on the left and right sides of the bracket.

3. The traction hook structure of the lifting and conveying equipment according to claim 1 or 2, characterized in that, Multiple traction hooks that combine to form the anti-detachment part are arranged in multiple rows from left to right, with each row of traction hooks staggered front to back.

4. The traction hook structure of the lifting and conveying equipment according to claim 2, characterized in that, The anti-slip parts on both sides of the bracket consist of the same number of traction hooks, and the traction hooks on both sides are symmetrically arranged.

5. The traction hook structure of the lifting and conveying equipment according to claim 2, characterized in that, The bracket includes a square support plate, and two sets of anti-detachment parts are set on the left and right sides of the support plate.

6. The traction hook structure of the lifting and conveying equipment according to claim 2, characterized in that, The bracket includes two forks, and two sets of anti-detachment parts are respectively installed on the two forks.

7. The traction hook structure of the lifting and conveying equipment according to claim 1, characterized in that, The traction hook is a spring plunger that can be elastically extended and retracted.

8. The traction hook structure of the lifting and conveying equipment according to claim 7, characterized in that, The bracket is provided with mounting holes for installing spring plungers. The outer wall of the spring plunger is provided with a threaded part. The spring plunger passes through the mounting hole and is externally threaded with an upper limit nut and a lower limit nut. The upper limit nut and the lower limit nut are respectively limited on the upper and lower sides of the bracket.

9. The traction hook structure of the lifting and conveying equipment according to claim 1, characterized in that, The bracket is equipped with anti-slip rubber blocks, and the height of the traction hook when it is compressed and retracted to its limit position is equal to or lower than the top surface of the anti-slip rubber blocks.

10. A lifting and conveying device, characterized in that, The device includes a wheeled frame, a bracket, and a traction hook structure for the lifting and transporting equipment as described in any one of claims 1-9. The bracket is liftably mounted on the frame, and the frame is equipped with a lifting drive device for driving the bracket to lift.

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