Power-assisted lever block

Abstract

The utility model discloses a power-assisted lever block, which is characterized in that one end of the top of a block main body is fixedly provided with a guide seat, the middle part of the guide seat is provided with a moving block in a sliding manner, and the bottom end of the moving block is fixedly connected with a mounting frame. The position of the splicing clamping block is changed, the splicing clamping block and the splicing clamping groove are connected in a clamped mode, the wrench is driven to move through the assistance servo motor, when the wrench needs to be frequently shaken for a long time, manual operation is replaced, the labor intensity of workers is reduced, and the working efficiency is improved; and the situation that a worker shakes the wrench for a long time to cause hand ache and injury is prevented, the comfort of operation and use is enhanced, a left mounting screw hole and a right mounting screw hole correspond to the positions of mounting bolts respectively when the power-assisted servo motor is away from and close to the hoist body, the position of the moving block is determined conveniently, and mounting and adjusting are more convenient.

Description

Technical Field

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

[0002] The lever hoist is a manual lifting tool that is easy to use and carry. It uses the lever principle to obtain a linear traction force that matches the load by manually pulling the handle. The lever hoist acts on a clamp body of the load in the movement in rotation to drive the load. It has the advantages of compact structure, light weight, small size, easy and labor-saving to carry, safe and reliable, long service life, low manual pulling force, and little wear on the wire rope. It can perform operations such as lifting, pulling, lowering, and calibrating. It is widely used in equipment installation, object lifting, and machine pulling in industries such as shipbuilding, electric power, transportation, construction, mining, and post and telecommunications.

[0003] However, the current lever hoist requires manual operation of the wrench. When lifting a large number of objects, the wrench needs to be manually shaken for a long time and frequently, which has high labor intensity, causes damage to the hands of the workers, and is inconvenient to operate. Therefore, the utility model provides a power-assisted lever hoist to meet people's needs. Utility Model Content

[0004] The utility model provides a power-assisted lever hoist, which can effectively solve the problem in the above-mentioned background technology that the lever hoist needs to be manually shaken to move the wrench. When lifting a large number of objects, the manual shaking of the wrench for a long time and frequently is required, which has high labor intensity, causes damage to the hands of the workers, and is inconvenient to operate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a power-assisted lever hoist, comprising a hoist body, a fixed hook fixedly connected to the top of the hoist body, symmetrical through holes formed at the bottom of the hoist body, a lifting chain installed in the middle of the hoist body, a lifting hook fixedly connected to the bottom of one end of the lifting chain, a wrench installed in the middle of one end of the hoist body, a connecting arm fixedly connected to the bottom of the connecting arm, an operating handle fixedly connected to the bottom of the connecting arm, a protective pad fixedly bonded to the surface of the operating handle, A splicing slot is provided in the middle of one end of the wrench, a guide seat is fixedly installed on one end of the top of the hoist body, a moving block is slidably installed in the middle of the guide seat, the bottom end of the moving block is fixedly connected to a mounting frame, a power-assisted servo motor is fixedly installed inside the mounting frame, and the output shaft of the power-assisted servo motor is fixedly connected to a splicing block, mounting bolts are equidistantly installed on the top of the guide seat, a left mounting screw hole is equidistantly provided at one end of the top of the guide seat, and a right mounting screw hole is equidistantly provided on the top of the guide seat at a position on one side of the left mounting screw hole;

[0006] Grooves are provided in the middle of both ends of the connecting arm, transverse reinforcement strips are fixedly installed at equal intervals inside the grooves, and longitudinal reinforcement strips are fixedly installed symmetrically in the middle of the grooves.

[0007] Preferably, a sliding groove is provided in the middle of the guide seat, the moving block is movably engaged in the sliding groove, and the mounting frame and the guide seat are slidably connected through the engagement of the moving block and the sliding groove.

[0008] Preferably, the length and width of the splicing slot are the same as the length and width of the splicing block, and the bottom of the mounting bolt passes through the guide seat and is fixedly connected to the top of the moving block.

[0009] Preferably, the transverse reinforcement strips and the longitudinal reinforcement strips are cross-fixedly connected to each other, and the transverse reinforcement strips and the longitudinal reinforcement strips are both welded to the middle of the connecting arm by electric welding.

[0010] Preferably, a fixing frame is fixedly installed on the bottom of the gourd body at one side of the two through holes, and arc-shaped guide blocks are fixedly installed at both ends of the two fixing frames.

[0011] Preferably, the bottoms of both inner walls of the fixing frame are arc-shaped, and the arc-shaped guide block and the arc-shaped inner wall of the fixing frame are spliced ​​with each other and surround the bottom of the through hole.

[0012] Compared with the existing technology, the beneficial effects of the present invention are as follows: the present invention has a scientific and reasonable structure and is safe and convenient to use:

[0013] 1. A splicing slot, a moving block, a power-assisted servo motor, a splicing block, a mounting bolt, a left mounting screw hole and a right mounting screw hole are provided. The position of the power-assisted servo motor is adjusted by cooperating with the moving block and the mounting bolt, and then the position of the splicing block is changed, so that the splicing block and the splicing slot are mutually engaged. The power-assisted servo motor is used to drive the wrench to move. When the wrench needs to be shaken frequently for a long time, it replaces manual operation, reduces the labor intensity of the staff, improves work efficiency, prevents the staff from shaking the wrench for a long time and causing hand soreness and injury, and enhances the comfort of operation. The left mounting screw hole and the right mounting screw hole correspond to the position of the mounting bolt when the power-assisted servo motor is away from and close to the hoist body, respectively, which is convenient for determining the position of the moving block and making installation and adjustment more convenient.

[0014] 2. It is equipped with grooves, transverse reinforcement strips and longitudinal reinforcement strips. Through the coordinated use of the transverse reinforcement strips and the longitudinal reinforcement strips, the structural strength of the connecting arm is enhanced, thereby reinforcing the entire wrench used for the hoist, thereby increasing the service life of the wrench and preventing the wrench from being damaged by the force of the lever operation for a long time.

[0015] 3. A fixed frame and an arc-shaped guide block are provided. Through the coordinated use of the fixed frame and the arc-shaped guide block, the traveling direction of the lifting chain is guided, so that the lifting chain will not be skewed when entering the interior of the hoist body. When the lifting chain contacts the arc-shaped guide block and the fixed frame, it is guided along the arc surface into the hoist body to prevent it from contacting the bottom of the hoist body and causing jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached figure:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the extended screw rod of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the operating handle of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the arc-shaped guide block of the utility model;

[0022] Numbers in the figure: 1. Hoist body; 2. Fixed hook; 3. Through hole; 4. Lifting chain; 5. Lifting hook; 6. Wrench; 7. Connecting arm; 8. Operating handle; 9. Protective pad; 10. Splicing slot; 11. Guide seat; 12. Moving block; 13. Mounting frame; 14. Power servo motor; 15. Splicing block; 16. Mounting bolt; 17. Groove; 18. Horizontal reinforcement strip; 19. Longitudinal reinforcement strip; 20. Fixed frame; 21. Arc guide block; 22. Left mounting screw hole; 23. Right mounting screw hole. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0024] Example: Figure 1-4As shown, the utility model provides a technical solution, a power-assisted lever hoist, including a hoist body 1, the top of the hoist body 1 is fixedly connected to a fixed hook 2, the bottom of the hoist body 1 is symmetrically provided with a through hole 3, the middle of the hoist body 1 is installed with a lifting chain 4, the bottom of one end of the lifting chain 4 is fixedly connected to a lifting hook 5, a wrench 6 is installed in the middle of one end of the hoist body 1, the bottom end of the wrench 6 is fixedly connected to a connecting arm 7, the bottom end of the connecting arm 7 is fixedly connected to an operating handle 8, the surface of the operating handle 8 is fixedly bonded with a protective pad 9, the middle of one end of the wrench 6 A splicing slot 10 is provided at the top of the hoist body 1. A guide seat 11 is fixedly installed at one end of the top of the guide seat 11. A moving block 12 is slidably installed in the middle of the guide seat 11. The bottom end of the moving block 12 is fixedly connected to a mounting frame 13. A slide groove is provided in the middle of the guide seat 11. The moving block 12 is movably connected to the inside of the slide groove. The mounting frame 13 and the guide seat 11 are slidably connected through the moving block 12 and the slide groove. A power servo motor 14 is fixedly installed inside the mounting frame 13. The output shaft of the power servo motor 14 is fixedly connected with a splicing block 15. The top of the guide seat 11 is equidistantly installed. There are mounting bolts 16. The length and width of the splicing card slot 10 are the same as the length and width of the splicing card block 15. The bottom of the mounting bolt 16 passes through the guide seat 11 and is fixedly connected to the top of the moving block 12. One end of the top of the guide seat 11 is equidistantly provided with a left mounting screw hole 22. The top of the guide seat 11 is equidistantly provided with a right mounting screw hole 23 at a position on the side of the left mounting screw hole 22. By cooperating with the moving block 12 and the mounting bolts 16, the position of the power servo motor 14 is adjusted, and then the position of the splicing card block 15 is changed, so that the splicing card block 15 The splicing slots 10 are mutually engaged, and the power-assisted servo motor 14 is used to drive the wrench 6 to move. When the wrench 6 needs to be shaken frequently for a long time, manual operation is replaced, thereby reducing the labor intensity of the staff, improving work efficiency, preventing the staff from shaking the wrench 6 for a long time and causing hand soreness and injury, and enhancing the comfort of operation. The left mounting screw hole 22 and the right mounting screw hole 23 respectively correspond to the positions of the mounting bolts 16 when the power-assisted servo motor 14 is away from and close to the hoist body 1, so as to facilitate the determination of the position of the movable block 12 and make installation and adjustment more convenient.

[0025] A groove 17 is provided in the middle of both ends of the connecting arm 7. Transverse reinforcement strips 18 are fixedly installed at equal distances inside the groove 17. A longitudinal reinforcement strip 19 is symmetrically fixedly installed in the middle of the groove 17. The transverse reinforcement strips 18 and the longitudinal reinforcement strips 19 are cross-fixed and connected to each other. The transverse reinforcement strips 18 and the longitudinal reinforcement strips 19 are welded to the middle of the connecting arm 7 by electric welding. By using the transverse reinforcement strips 18 and the longitudinal reinforcement strips 19 in conjunction with each other, the structural strength of the connecting arm 7 is enhanced, and the wrench 6 for the hoist is reinforced as a whole, thereby improving the service life of the wrench 6 and preventing the wrench 6 from being damaged by the force of the lever operation for a long time.

[0026] The bottom of the hoist body 1 is located on one side of the two through holes 3 and a fixed frame 20 is fixedly installed. The two ends of the inside of the two fixed frames 20 are fixedly installed with arc-shaped guide blocks 21. The bottoms of the two inner walls of the fixed frame 20 are both arranged to be arc-shaped. The arc-shaped guide blocks 21 and the arc-shaped inner walls of the fixed frame 20 are spliced ​​with each other and surround the bottom of the through hole 3. Through the coordinated use of the fixed frame 20 and the arc-shaped guide blocks 21, the traveling direction of the lifting chain 4 is guided, so that the lifting chain 4 will not be skewed when entering the inside of the hoist body 1. When the lifting chain 4 contacts the arc-shaped guide blocks 21 and the fixed frame 20, it is guided into the hoist body 1 along the arc surface to prevent it from contacting the bottom of the hoist body 1 and causing jamming.

[0027] The working principle and use process of the utility model are as follows: first, the hoist body 1 is hung at the predetermined installation position by using the fixed hook 2, and the staff manually hooks the lifting hook 5 to the object to be lifted. If only a short period of lifting operation is required, the power servo motor 14 is away from the hoist body 1, and the mounting bolt 16 passes through the left mounting screw hole 22 to install and fix the moving block 12 and the guide seat 11 so that the splicing block 15 will not be inserted into the interior of the splicing slot 10. The staff holds the operating handle 8 and the protective pad 9, and uses the connecting arm 7 to shake the wrench 6, so that the end of the lifting chain 4 hanging the object moves upward, pulling the object up, and lifting the object to At the predetermined position, if the number of objects to be lifted is large and the staff needs to operate frequently for a long time, the staff first loosens and removes the mounting bolts 16, pushes the moving block 12 to slide along the guide seat 11, and makes the power-assisted servo motor 14 close to the hoist body 1, and adjusts the position of the splicing slot 10 by adjusting the angle of the wrench 6, so that the splicing card block 15 is inserted into the inside of the splicing slot 10, and the moving block 12 corresponds to the position of the right mounting screw hole 23, and uses the mounting bolt 16 to penetrate the right mounting screw hole 23 to lock and fix the moving block 12. When lifting objects, the power-assisted servo motor 14 can be used to drive the wrench 6 to rotate, without the need to manually shake the wrench 6 for a long time;

[0028] When the operating handle 8 is manually held to shake the wrench 6, the connecting arm 7 is subjected to pressure, and the transverse reinforcement strips 18 and the longitudinal reinforcement strips 19 cross each other, which reinforces the connecting arm 7, disperses the pressure on the connecting arm 7, and increases the service life of the connecting arm 7. The lifting chain 4 frequently enters and slides out of the hoist body 1, and the arc-shaped guide block 21 guides it. When lifting, the lifting chain 4 contacts the arc-shaped guide block 21 or the arc-shaped bottom of the inner wall of the fixed frame 20, and will move along the arc surface. The arc surface guides the lifting chain 4 to prevent it from contacting the edge of the bottom of the hoist body 1 and getting stuck.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A power-assisted lever hoist, comprising a hoist body (1), characterized in that: The top of the hoist body (1) is fixedly connected with a fixed hook (2), the bottom of the hoist body (1) is symmetrically provided with through holes (3), the middle of the hoist body (1) is provided with a lifting chain (4), the bottom of one end of the lifting chain (4) is fixedly connected with a lifting hook (5), a wrench (6) is installed in the middle of one end of the hoist body (1), the bottom of the wrench (6) is fixedly connected with a connecting arm (7), the bottom of the connecting arm (7) is fixedly connected with an operating handle (8), a protective pad (9) is fixedly bonded to the surface of the operating handle (8), a splicing slot (10) is provided in the middle of one end of the wrench (6), the hoist body (1) A guide seat (11) is fixedly installed at one end of the top, a moving block (12) is slidably installed in the middle of the guide seat (11), a mounting frame (13) is fixedly connected to the bottom end of the moving block (12), a power-assisted servo motor (14) is fixedly installed inside the mounting frame (13), an output shaft of the power-assisted servo motor (14) is fixedly connected to a splicing block (15), mounting bolts (16) are equidistantly installed at the top of the guide seat (11), a left mounting screw hole (22) is equidistantly opened at one end of the top of the guide seat (11), and a right mounting screw hole (23) is equidistantly opened at a position on one side of the left mounting screw hole (22) at the top of the guide seat (11); Grooves (17) are provided in the middle of both ends of the connecting arm (7), transverse reinforcement strips (18) are fixedly installed at equal intervals inside the grooves (17), and longitudinal reinforcement strips (19) are fixedly installed symmetrically in the middle of the grooves (17).

2. The power-assisted lever hoist according to claim 1, characterized in that: A sliding groove is provided in the middle of the guide seat (11), and the moving block (12) is movably engaged in the sliding groove. The installation frame (13) and the guide seat (11) are slidably connected through the moving block (12) and the sliding groove.

3. The power-assisted lever hoist according to claim 1, characterized in that: The length and width of the splicing slot (10) are the same as those of the splicing block (15), and the bottom of the mounting bolt (16) passes through the guide seat (11) and is fixedly connected to the top of the moving block (12).

4. The power-assisted lever hoist according to claim 1, characterized in that: The transverse reinforcement strip (18) and the longitudinal reinforcement strip (19) are cross-fixedly connected to each other, and the transverse reinforcement strip (18) and the longitudinal reinforcement strip (19) are both welded to the middle of the connecting arm (7) by electric welding.

5. The power-assisted lever hoist according to claim 1, characterized in that: A fixing frame (20) is fixedly installed at the bottom of the gourd body (1) at one side of the two through holes (3), and arc-shaped guide blocks (21) are fixedly installed at both ends of the inside of the two fixing frames (20).

6. The power-assisted lever hoist according to claim 5, characterized in that: The bottoms of the two inner walls of the fixed frame (20) are both arranged in an arc shape, and the arc-shaped guide block (21) and the arc-shaped inner wall of the fixed frame (20) are spliced ​​with each other and surround the bottom of the through hole (3).

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