Lever block

Abstract

The utility model relates to the technical field of lever hoists, in particular to a lever hoist which comprises a fixing plate, a hoisting wheel is arranged on one side of the fixing plate, a lifting hook beam is fixedly connected to the top end of the fixing plate, a first limiting hole is formed in the outer side of the lifting hook beam, a plug pin is connected into the first limiting hole in a clamped mode, and the first limiting hole is connected with the lifting hook beam in a clamped mode. According to the utility model, through the arrangement of components such as the chain ring and the safety catch, when the hoisting chain is damaged and broken, the damaged part is found, the safety catch is opened by rotating and lifting the safety catch, so that the chain ring of the damaged part is detached, and the hoisting chain is fixed to the fixed hook through the chain ring and the safety catch. When the lever block is used for a long time, a new small section of chain ring is replaced, and the safety catch is tightened again after the chain ring is clamped, so that the problem that the whole chain needs to be replaced to cause unnecessary waste when the chain is abraded and fractured under the condition that the existing lever block is used for a long time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lever hoists, in particular to a lever hoist. Background Art

[0002] The lever hoist is a manual lifting tool that is easy to use and carry. The lever hoist can be used for lifting, pulling, lowering, and calibration. The lever hoist is a clamp that uses manpower to manually pull the handle, obtains a linear traction force that matches the load with the help of the lever principle, and acts on the load in the movement in rotation to drive the load to run.

[0003] When the existing hand-operated hoist is used for a long time, the chain will be worn and broken, and the whole chain needs to be replaced, causing unnecessary waste; the fixing method of the existing hand-operated hoist is relatively simple, and it can only be fixed by a hook and a fixed object. Some places cannot meet the conditions for hook fixation, which is inconvenient to use; the lifting hook part of the existing hand-operated hoist is fixed with bolts. When the lifting hook is damaged, the connecting part needs to be disassembled and replaced, which is quite troublesome. Therefore, a hand-operated hoist is proposed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a lever hoist to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lever hoist comprises a fixing plate, a lifting wheel is provided on one side of the fixing plate, a hook beam is fixedly connected to the top end of the fixing plate, a first limiting hole is provided on the outer side of the hook beam, a latch is connected to the inside of the first limiting hole in a snap-fitting manner, a fixing rod is spirally connected to the inside of the hook beam, a fixing hook is fixedly connected to the top end of the fixing rod, a second limiting hole is provided on the outer side of the fixing rod, a second fixing plate located on the right side of the lifting wheel is fixedly connected to one side of the fixing plate, a hand wheel is provided on the outer side of the second fixing plate, a hand rod is provided on one side of the hand wheel, a chain ring is provided inside the lifting wheel, and a chain wheel is provided at the bottom end of the chain ring.

[0007] Preferably, a fixing plate is fixedly connected to the top end of the fixing rod, and a fixing hole is provided on the surface of the fixing plate.

[0008] Preferably, the bottom end of the sprocket wheel is fixedly connected to another hook beam, the bottom end of the other hook beam is spirally connected to another fixing rod, the bottom end of the other fixing rod is fixedly connected to a lifting hook, and the other hook beam and the other fixing rod are also connected to another first limiting hole and another second limiting hole by another pin.

[0009] Preferably, a safety buckle is provided at one end of the chain ring, and a plurality of chain rings are connected in series to form a complete lifting chain.

[0010] Preferably, the latch is snap-connected with a second limiting hole, and the first limiting hole and the second limiting hole are in an overlapping state.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. In the utility model, by providing components such as chain rings and safety buckles, when the lifting chain is damaged or broken, the damaged part is found and the safety buckle is rotated and pulled to open the safety buckle, so that the damaged chain ring is removed and replaced with a new small section of the chain ring. After the chain ring is locked, the safety buckle can be tightened again, thereby solving the problem that the chain of the existing hand-operated hoist is worn and broken after long-term use, and the whole chain needs to be replaced, causing unnecessary waste;

[0013] 2. In the utility model, by setting the hook beam, the first limiting hole, the second limiting hole, the latch, the fixing rod, the fixing hook, the fixing plate and the fixing hole and other components, the latch is pulled out from the first limiting hole and the second limiting hole, and then the fixing hook and the fixing rod are rotated until the fixing rod is screwed out of the hook beam. Then the replacement part with the fixing plate is taken out, and the fixing rod at the bottom of the fixing plate is aligned with the hook beam and screwed tight until the first limiting hole and the second limiting hole coincide with each other. Then the latch is inserted to prevent the fixing rod from falling off, and the bolts can be inserted through the fixing holes on the fixing plate to fix it with any roof, thereby solving the problem that the fixing method of the existing lever hoist is relatively single, and it can only be fixed to the fixed object by the hook, and some places cannot meet the conditions for hook fixing, which is inconvenient to use;

[0014] 3. In the utility model, by providing components such as the hook beam, the lifting hook, the fixed rod, the first limiting groove, the second limiting groove and the latch, the latch can be pulled out, the lifting hook is held and rotated, and the fixed rod is driven to rotate by the lifting hook to separate the fixed rod from the hook beam, and then a new lifting hook can be replaced, thereby solving the problem that the lifting hook part of the existing hand-operated hoist is fixedly connected by bolts, and when the lifting hook is damaged, the entire connecting part needs to be disassembled and replaced, which is quite troublesome. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the fixed disk of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the fixed plate of the utility model when viewed from above.

[0018] In the figure: 1. fixed plate; 2. lifting wheel; 3. hook beam; 4. first limiting hole; 5. latch; 6. fixed rod; 7. fixed hook; 8. second fixed plate; 9. hand wheel; 10. hand rod; 11. chain ring; 12. safety buckle; 13. chain wheel; 14. lifting hook; 15. second limiting hole; 16. fixed plate; 17. fixing hole. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of the utility model, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0021] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the practical protection scope of this new model.

[0022] See also Figure 1-3 , the utility model provides a technical solution:

[0023] A lever hoist comprises a fixing plate 1, a lifting wheel 2 is provided on one side of the fixing plate 1, a hook beam 3 is fixedly connected to the top end of the fixing plate 1, a first limiting hole 4 is provided on the outer side of the hook beam 3, a latch 5 is snap-connected inside the first limiting hole 4, a fixing rod 6 is spirally connected inside the hook beam 3, a fixing hook 7 is fixedly connected to the top end of the fixing rod 6, a second limiting hole 15 is provided on the outer side of the fixing rod 6, a second fixing plate 8 located on the right side of the lifting wheel 2 is fixedly connected to one side of the fixing plate 1, a hand wheel 9 is provided on the outer side of the second fixing plate 8, a hand rod 10 is provided on one side of the hand wheel 9, a chain ring 11 is provided inside the lifting wheel 2, and a chain wheel 13 is provided at the bottom end of the chain ring 11.

[0024] A fixing plate 16 is fixedly connected to the top of the fixing rod 6, and a fixing hole 17 is provided on the surface of the fixing plate 16. Another hook beam 3 is fixedly connected to the bottom end of the sprocket wheel 13, and another fixing rod 6 is spirally connected to the bottom end of the other hook beam 3. A lifting hook 14 is fixedly connected to the bottom end of the other fixing rod 6. The other hook beam 3 and the other fixing rod 6 are also connected to another first limiting hole 4 and another second limiting hole 15 by another latch 5. A safety buckle 12 is provided at one end of the chain ring 11, and a plurality of chain rings 11 are connected in series to form a complete lifting chain. The latch 5 is connected to the second limiting hole 15, and the first limiting hole 4 and the second limiting hole 15 are in an overlapping state.

[0025] Workflow: When it is necessary to use a lever hoist, first select a fixing hook 7 or a fixing plate 16 to fix it to a fixed object according to the on-site conditions. The fixing hook 7 is used in places where there is telescopic or where the hook can be hung. In places where there is no fixed point, pull out the latch 5 from the first limiting hole 4 and the second limiting hole 15, then rotate the fixing hook 7 and the fixing rod 6 until the fixing rod 6 is screwed out of the hook beam 3, then take out the replacement part with the fixing plate 16, align the fixing rod 6 at the bottom of the fixing plate 16 with the hook beam 3 and tighten it with a screw until the first limiting hole 4 and the second limiting hole 15 coincide with each other, then insert the latch 5 to prevent the fixing rod 6 from falling off, and the fixing hole 17 on the fixing plate 16 can be used to fix the fixing rod 6. Insert the bolts and fix it to any roof. After fixing, it can be used normally with the same steps as the original lever hoist. When the lifting chain is damaged or broken, find the damaged part, turn and pull the safety buckle 12 to open the safety buckle 12, remove the damaged chain ring 11, replace it with a new small section of the chain ring 11, and tighten the safety buckle 12 after it is engaged. The lifting hook 14 itself is a wearing part. Because it is in direct contact with heavy objects for a long time, wear and tear is inevitable. By pulling out the pin 5, holding and turning the lifting hook 14, the fixing rod 6 is driven to rotate by the lifting hook 14, so that the fixing rod 6 is separated from the hook beam 3, and then the new lifting hook 14 is replaced.

[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0027] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lever hoist, comprising a fixing plate (1), characterized in that: A lifting wheel (2) is provided on one side of the fixing plate (1); a hook beam (3) is fixedly connected to the top of the fixing plate (1); a first limiting hole (4) is provided on the outer side of the hook beam (3); a latch (5) is snap-connected inside the first limiting hole (4); a fixing rod (6) is spirally connected inside the hook beam (3); a fixing hook (7) is fixedly connected to the top of the fixing rod (6); a second limiting hole (15) is provided on the outer side of the fixing rod (6); a second fixing plate (8) located on the right side of the lifting wheel (2) is fixedly connected to one side of the fixing plate (1); a hand wheel (9) is provided on the outer side of the second fixing plate (8); a hand wheel (10) is provided on one side of the hand wheel (9); a chain ring (11) is provided inside the lifting wheel (2); a chain wheel (13) is provided at the bottom end of the chain ring (11).

2. A lever hoist according to claim 1, characterized in that: A fixing plate (16) is fixedly connected to the top end of the fixing rod (6), and a fixing hole (17) is provided on the surface of the fixing plate (16).

3. A lever hoist according to claim 1, characterized in that: The bottom end of the chain wheel (13) is fixedly connected to another hook beam (3), the bottom end of the other hook beam (3) is spirally connected to another fixing rod (6), the bottom end of the other fixing rod (6) is fixedly connected to a lifting hook (14), and the other hook beam (3) and the other fixing rod (6) are also connected to another first limiting hole (4) and another second limiting hole (15) by another latch (5).

4. A lever hoist according to claim 1, characterized in that: A safety buckle (12) is provided at one end of the chain ring (11), and a plurality of chain rings (11) are connected in series to form a complete lifting chain.

5. A lever hoist according to claim 1, characterized in that: The latch pin (5) is snap-connected with the second limiting hole (15), and the first limiting hole (4) and the second limiting hole (15) are in an overlapping state.

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