A lifting device that is tied with a rope and locked by itself

Abstract

The present invention provides a lifting device that uses its own rope to flexibly adjust the length and is used to bundle and fix boxes, bags, and strips of different sizes and shapes. It includes a main body, a handle, a rope, and a release and stop system for controlling the rope. The rope is a closed rope, which is divided into an upper rope and a lower rope at the connection position of the conical release groove and the inverted conical stop groove on the main body. The upper rope is controlled to adjust the length of the lower rope, and the release and stop system is used to control the tightening, locking, and loosening status of the lower rope, and to reserve rope for the lifting device; the lower rope is controlled to cooperate with the release and stop system for bundling and fixing objects. When lifting objects, the lower rope relies on the gravity of the lifted objects to lock itself. The present invention can be used alone or in combination with multiple devices. It is convenient and flexible, simple to operate, and has the advantages of low cost, easy production, and easy development and transformation.

Description

Technical Field

[0001] The invention relates to the field of tools for lifting and transporting objects in daily life and production labor, in particular to an object lifter which is tied with a rope and locked by itself. Background Art

[0002] Most common lifting devices used in daily life only provide multiple functions, such as handles. These lifting devices require the lifting of the objects themselves or by tying them with ropes, hooks, or straps. This makes them ineffective for lifting boxes, especially cardboard boxes; bags, especially rice, flour, and cement bags; and items in strips or large blocks. The most common lifting devices used in daily life are beer crates, beverage crates, wooden planks, and bricks, which can only be carried with both hands or on the shoulder, making them particularly inconvenient when moving up and down stairs. Summary of the Invention

[0003] The present invention is intended to overcome the shortcomings of most lifting devices that cannot provide functions such as ropes, bundling, and locking, and to make up for the deficiency that boxes, bags, strips, and blocks cannot be conveniently carried. The present invention provides a lifting device that does not require the aid of any tools, uses its own ropes, and adjusts the rope length accordingly according to the requirements of the items, and can bundle boxes, bags, strips, and blocks of different sizes and shapes, and can automatically lock the items when lifting them.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] The object lifter of the present invention comprises: an object lifter body, a handle, a rope, and a release system and a stop system for controlling the loosening, tightening and locking of the rope.

[0006] The rope is closed at both ends, featuring connection closure, integrated closure, and fixed closure. The rope is divided into an upper and lower section at the connection point between a tapered release groove and an inverted tapered stop groove on the main body of the lift. The upper section is controlled to adjust the length of the lower section, and in conjunction with a release system and a stop system, it controls the tightening, locking, and loosening of the lower section, and also provides a reserve of rope for the lift. The lower section is controlled to cooperate with the release system and the stop system to bundle and secure items. When lifting, the lower section automatically locks due to the weight of the lifted item.

[0007] The release and locking system consists of a tapered release groove, a fixed release bolt, an inverted tapered stop groove, and a stop bolt. Its characteristic is that when the rope passes through the inverted tapered stop groove, either manually assisted or due to the weight of the object being pulled, it squeezes and drives the stop bolt to slide, sliding into the narrow conical portion of the stop groove. The friction between the stop bolt, the rope, and the gradually narrowing wall of the stop groove increases, and this continuous action secures the rope and the stop bolt in the narrowest part of the stop groove, thereby achieving self-stopping and locking of the rope. When the rope passes through the tapered release groove, it drives the stop bolt to slide, entering the tapered release groove. At the widest point of the tapered release groove, the fixed release bolt blocks and stabilizes the stop bolt's movement, allowing the rope to gradually enter the loose space. The friction between the rope, the stop bolt, and the groove wall is minimal, allowing the rope to escape the control of the stop bolt and be released and relaxed.

[0008] The surface of the stop bolt is rough in order to increase friction.

[0009] The surface of the inverted conical retaining groove wall is rough and uneven in order to increase friction.

[0010] The wall surface of the tapered release groove is smooth in order to reduce friction.

[0011] The present invention provides a self-locking and strapping lifting device that can flexibly and freely bundle, lock, and secure boxes, bags, strips, and blocks of items. Depending on the specific needs of the items being lifted, the device can be used as a lifting handle or as a binding and locking tool. It can be used alone or in combination. The design emphasizes practical features such as convenience, flexibility, and ease of operation, while also highlighting the development and commercialization advantages of low cost and ease of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described below with reference to the accompanying drawings:

[0013] Figure 1 This is a plan view of the lifting device;

[0014] Figure 2 It is a three-dimensional diagram of the appearance of the lifting device;

[0015] Figure 3 It is a cross-sectional view of the lifting device;

[0016] Figure 4 This is a diagram of the structure of the lifting device;

[0017] Figure 5 This is the working principle diagram of the lifting device locking;

[0018] Figure 6 This is a diagram of the working principle of the lifting device tightening;

[0019] Figure 7 This is a diagram of the working principle of the lifting device;

[0020] Figure 8 This is a diagram of the locking process of the stop bolt;

[0021] Figure 9 It is a perspective view of the stop surface;

[0022] Figure 10 This is a schematic diagram of the lifting device adjusting the rope to tighten the item;

[0023] Figure 11 This is a schematic diagram of the implementation of adjusting the rope of the lifting device to loosen the item;

[0024] Figure 12 1. It is a schematic diagram of the state in which the lifting rope of the lifting device locks the item;

[0025] Figure 13 This is a schematic diagram of the state of the lifter arranging the block-shaped items in the box;

[0026] Figure 14 This is a schematic diagram of the state in which the lifting device is bundling the box-shaped bulk items;

[0027] Figure 15 This is a schematic diagram of the state of the lifting device arranging the bar-shaped objects;

[0028] Figure 16 This is a schematic diagram of the state in which the lifting device is bundling the rod-shaped objects;

[0029] Figure 17 、 Figure 18 This is a schematic diagram of the coordinated use of multiple lifts.

[0030] The corresponding relationship between the components and their reference numerals in the accompanying drawings is as follows:

[0031] 1. Lifting device body; 2. Handle; 3. Upper rope; 4. Lower rope; 5. Stopper; 6. Inverted tapered stopper groove; 7. Tapered release groove; 8. Fixed release pin; 9. Upper rope outlet; 10. Lower rope outlet; 11. Release groove wall; 12. Stopper groove wall; 13. Upper left guide rope groove; 14. Upper right guide rope groove; 15. Item; 301. Upper left rope; 302. Upper right rope; 401. Lower left rope; 402. Lower right rope; 411. Lower rope surface; 511. Stopper surface; 611. Stopper groove wall surface. DETAILED DESCRIPTION

[0032] To make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0033] Reference Figure 1 、 Figure 2 、 Figure 3The simple and lightweight structure of the present invention is shown from its appearance and interior, which is more convenient for use and carrying in production and life;

[0034] Reference Figure 4 The structure of the lifting device is shown in detail, including the lifting device body 1; the handle 2; the upper rope 3; the lower rope 4; the stop bolt 5; the inverted conical stop groove 6; the conical release groove 7; the fixed release bolt 8; the upper rope outlet 9; the lower rope outlet 10; the release groove wall 11; the stop groove wall 12; the upper left guide rope groove 13; the upper right guide rope groove 14; the upper left rope 301; the upper right rope 302; the lower left rope 401; and the lower right rope 402. Among the various components of the lifting device body 1, the stop bolt 5 can slide freely in the space between the inverted conical stop groove 6 and the conical release groove 7 when the lifting device body 1 is not in use or the lifting device body 1 is laid flat; the fixed release bolt is fixed; based on the junction position of the inverted conical stop groove 6 and the conical release groove 7, the rope is divided into an upper rope 3 and a lower rope 4, and the upper rope 3 forms a closure at the upper part of the lifting device body 1. The upper rope 3 is mainly used to cooperate with the release system and the stop system to control the lower rope 4 and adjust the tightening, locking and loosening state of the transported items 15, and to reserve the remaining rope of the lower rope 4 after bundling the transported items 15; the lower rope 4 is also a closure at the lower part of the lifting device body 1, and is mainly used for bundling, tightening, locking and loosening the transported items 15, and at the same time correspondingly assisting in adjusting the length of the upper rope 4. Figure 4 It shows that the upper and lower sections of the rope are actually an integrated closed rope, and the whole is also a complete closure. Pulling any section of the rope can affect the length of the other section of the rope, the size of the closure, and the overall rope.

[0035] Combined with reference Figure 6 、 Figure 10When the lifting device is in a relaxed state before carrying an item 15, the lifting device body 1 is first inverted or laid flat, and the handle 2 is stabilized. When the lifting device body 1 is inverted or laid flat, the stopper 5 will automatically enter the release groove, and the upper rope 3 and the lower rope 4 can pull each other and freely expand and contract. The length of the two ropes can be adjusted back and forth at will according to the size of the carried item 15. The lower rope 4 is put on the item, and the upper left rope 301 or the upper right rope 302 is pulled upward, driving the lower left rope 401 and the lower right rope 402 to move upward and extend from the upper rope outlet 9 through the tapered release groove 7, the upper left guide rope groove 13, and the upper right guide rope groove 14; the movement of the upper and lower ropes will drive the stopper 5 to slide back and forth, and it will be blocked by the fixed release bolt 8 at the loosest position of the inverted tapered stop groove 6 and the tapered release groove 7 and stay there. This is the loosest position; the upper and lower ropes pass back and forth in the loose space between the stop bolt 5 and the release groove wall 11, and between the stop bolt 5 and the stop groove wall 12, and the length of the lower left rope 401 and the lower right rope 402 are adjusted accordingly. When the shortest length requirement for tightening the item 15 is reached, the upper rope 3 is stabilized, the lifting device body 1 is erected, and the auxiliary stop bolt 5 slides into the inverted cone-shaped stop groove 6, thereby resisting the lower rope 4, thereby achieving the purpose of tightening the tied item 15.

[0036] Combined with reference Figure 5 、 Figure 8 、 Figure 9 、 Figure 12 After the lifting rope has tightened and tied the transported article 15, first stand up the lifting machine body 1, hold the handle 2 with one hand; use the other hand to help push the stop bolt 5 downward; let the stop bolt 5 enter the inverted conical stop groove 6, and the stop bolt 5 is clamped on the left and right sides by the lower left rope 401 and the lower right rope 402. Originally, the stop bolt 5 can move back and forth when it is not under force, but now it is under force after being clamped by the rope. At this time, pull the handle 2 upward, and under the action of the gravity of the article 15, the stop bolt 5 is clamped in the inverted conical stop groove 6 by the lower left rope 401 and the lower right rope 402. The rope 401 and the lower right rope 402 are clamped and moved slightly downward to enter a narrower space. Friction and reaction forces are formed between the rough stop groove wall surface 611, the rough lower rope surface 411 and the rough stop bolt surface 511. Under the interaction of the friction forces on the left and right sides, the stop bolt 5, the lower rope 4 and the inverted conical stop groove 6 are tightly attached together. The further they enter the bottom of the inverted conical stop groove 6, the greater the force. At the narrowest position in the inverted conical stop groove 6, the stop bolt 5 firmly locks the lower rope 4, thereby locking the transported item 15.

[0037] Combined with reference Figure 7 、 Figure 11When the lifting device is in the locked state after completing the transportation of the item 15, relax the lifting device body 1 and do not apply force to the item 15; stabilize the handle 2, and pull the upper rope 3 upward at the same time, so that the lower rope 4 can bring the stop bolt 5 out of the narrowest position of the inverted cone-shaped stop groove 6, and let the stop bolt 5 enter the cone release groove 7. In this way, the stop bolt 5 will leave space for the entire rope to move. When the stop bolt 5 does not apply force to the lower rope 4, the length of the two ropes can be adjusted according to the locking degree of the lower rope 4 on the transported item 15 and the rope length required to remove the item 15. First, invert the lifting device body 1, stabilize the handle 2, and the stop bolt 5 will sink naturally and approach the fixed release bolt 8; the lower left rope section 401 and the lower right rope section 402 are pulled down toward the object 15 at the same time, shaking while pulling, so as to prevent the lower left rope section 401 and the lower right rope section 402 from approaching or driving the stop bolt 5 to move; the lower left rope section 401 and the lower right rope section 402 can also be pulled down toward the object 15 respectively, driving the upper left rope section 301 and the upper right rope section 302 to pass through the upper left guide rope groove 13, the upper right guide rope groove 14, the conical release groove 7, the inverted conical stop groove 6, and then move downward from the lower rope outlet 10 to extend. At this time, because the lifting device body 1 is inverted, the stop bolt 5 will always be close to the fixed release bolt 8. At the loosest position of the inverted conical stop groove 6 and the conical release groove 7, no force will be applied to the rope, and the pulling movement of the upper and lower ropes will not drive the movement of the stop bolt 5. The upper and lower ropes pass back and forth in the loose space between the stop bolt 5 and the conical release groove wall 11 and between the stop bolt 5 and the inverted conical stop groove wall 12 to reach the required length for loosening the object 15, thereby adjusting the length of the lower left rope section 401 and the lower right rope section 402 accordingly to achieve the purpose of loosening the object 15.

[0038] Combined with reference Figure 8 、 Figure 9 The process of the stopper 5 entering the inverted conical stopper groove 6 and stopping is a momentary, minute, and gradual process. During this process, the lower section of the rope 4 moves downward under the downward force of the object 15, driving the stopper 5 to slide downward in the inverted conical stopper groove 6. As the contact surface gradually narrows, the friction increases, and the left and right sides are always clamped by the stopper 5 and the stopper groove wall 12. The friction of the rough surfaces of the three drives the stopper 5 downward together, so that the stopper 5 does not act in the opposite direction. When it reaches the narrowest inverted cone bottom, it stops the sliding lower section of the rope 4 and locks the object 15. The heavier the object 15, the better the stopping effect and the more secure the locking.

[0039] Reference Figure 13 、 Figure 14 、 Figure 15 、 Figure 16The lifting device of the present invention is used for arranging and bundling box-shaped objects 15 and bar-shaped objects 15. The lifting device of the present invention is not limited by the external dimensions and can be used for such objects regardless of the shape.

[0040] Reference Figure 17 、 Figure 18 When the carried article 15 is too long, in bundles or difficult for one person to carry, two or more article lifters of the present invention can be used to bundle the articles 15, thus realizing a multi-tool, multi-person coordinated carrying mode.

[0041] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that any modifications, deformations, equivalent substitutions, improvements, etc. that can be made by those skilled in the art without creative work within the spirit and principles of the present invention and on the basis of the technical solution should be included in the scope of protection of the present invention.

Claims

1. A self-locking lifting device tied with a rope, comprising: A lifting device body (1), a handle (2), a rope, a release system for controlling the rope, a stop system, an upper left guide rope groove, and an upper right guide rope groove, characterized in that the lifting device body (1) is designed to connect the release system and the stop system through the rope, the rope cooperates with the release system and the stop system to bundle and fix the items, and relies on the gravity of the lifted items to lock themselves; the release system includes a conical release groove (7), and the stop system includes an inverted conical stop groove (6); The tapered "Y"-shaped structure formed by the upper left guide rope groove, the upper right guide rope groove and the tapered release groove has a limiting effect on the rope.

2. A self-locking lifting device tied with a rope according to claim 1, characterized in that The rope is divided into an upper rope (3) and a lower rope (4) at the connection position between the conical release groove (7) and the inverted conical stop groove (6) on the object lifting device body (1).

3. A self-locking lifting device tied with a rope according to claim 1 or 2, characterized in that The rope is closed at both ends, and its closing features include connected closure, integrated closure, and fixed closure.

4. The self-locking lifting device tied with a rope according to claim 2, characterized in that The release system and the stop system are composed of the conical release groove (7), the fixed release bolt (8), the inverted conical stop groove (6) and the stop bolt (5), and the two systems are connected to each other.

5. The self-locking lifting device tied with a rope according to claim 4, characterized in that The release groove wall (11) of the tapered release groove (7) is smooth; and the stop groove wall surface (611) of the stop groove wall (12) of the inverted tapered stop groove (6) is rough and uneven.

6. The self-locking lifting device tied with a rope according to claim 5, characterized in that The stopper surface (511) of the stopper (5) is rough and uneven.

7. The self-locking lifting device tied with a rope according to claim 6, characterized in that When the inverted conical stop groove (6) is in operation, the friction force of the stop groove wall surface (611) of the stop groove wall (12) and the friction force of the stop bolt surface (511) of the stop bolt (5) are used to control the lower rope (4).

8. A self-locking lifting device tied with a rope according to claim 1 or 4, characterized in that The conical release groove (7) is a conical body cavity; the inverted conical stop groove (6) is an inverted conical body cavity, and the two body cavities are connected head to tail. The control of the three states of tightening, locking and loosening of the rope belt is realized in the conical body cavity and the inverted conical body cavity.

9. The self-locking lifting device tied with a rope according to claim 4, characterized in that The lower rope section (4) is acted upon by friction, driving the stop bolt (5) to enter the inverted conical stop groove (6) and automatically lock the lower rope section (4).

10. The self-locking lifting device tied with a rope according to claim 1, characterized in that The rope and the release system and the stopping system for controlling the rope are used individually or in combination on one of the lifting device bodies (1).

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