Winch lifter

Abstract

The winch lifter comprises a base, a panel is hinged to the front side of the base through a first shaft, a gear box is hinged to the rear side of the base through a second shaft, a connection shaft is arranged in the gear box, and one end of the connection shaft extends to the outer side of the gear box and is provided with an electric drill connection opening. The connecting shaft drives a first transmission gear through an input gear coaxially connected with the connecting shaft, the first transmission gear is coaxially connected with a second transmission gear, the second transmission gear drives an output gear, the output gear is in transmission connection with an output shaft, the output shaft extends to the outer side of the gearbox and is connected with a rope wheel, and the rope wheel and a guide wheel are arranged between the base and the panel. According to the winch lifter, a plurality of grooves for containing ropes are formed in the rope wheel, so that the ropes can be wound around the rope wheel for multiple turns (multiple circles), the rope wheel and the guide wheel synchronously move, the grabbing force between the rope and the ropes is greatly increased, the lifting capacity is improved, meanwhile, the guide wheel idles during descending, the grabbing force between the guide wheel and the ropes can be reduced, and the lifting efficiency is improved. And the gliding is convenient and smooth.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric lifting equipment, and particularly relates to a winch lifter. BACKGROUND

[0002] In the previous patent application (a lifter) of the applicant, a single-groove rope wheel is used, the single-groove rope wheel is provided with a slotted groove for accommodating a rope, and the slotted groove is provided with a bumpy side wall to increase the binding force (friction) between the rope and the rope wheel, thereby increasing the lifting weight and preventing slipping during lifting. In practice, it is found that the single-groove rope wheel is easily worn by the rope with mud and sand, and the lifting capacity decreases rapidly. At the same time, due to the large friction between the rope and the rope wheel, the lifter cannot be smoothly lowered during lowering, and therefore it is urgently needed to improve it. SUMMARY

[0003] To solve the problems raised in the background, the utility model provides a winch lifter: during lifting, the rope wheel and the guide wheel operate synchronously to provide a large friction for lifting; during lowering, the guide wheel idles to provide a small friction for facilitating lowering. The problems of easy slipping during lifting and incoordination during lowering of the previous lifter are solved.

[0004] A winch lifter, comprising a base, a panel is hingedly connected to the front side of the base through a shaft one, a gear box is hingedly connected to the rear side of the base through a shaft two, a connecting shaft is arranged in the gear box, one end of the connecting shaft extends to the outside of the gear box and is provided with a drill connecting port, the connecting shaft is connected with an input gear through a coaxial connection, the input gear is coaxially connected with a first transmission gear, the first transmission gear is coaxially connected with a second transmission gear, the second transmission gear drives an output gear, the output gear is connected with an output shaft, the output shaft extends to the outside of the gear box and is connected with a rope wheel, the first transmission gear drives a third transmission gear, the third transmission gear is connected with another output shaft, the other output shaft extends to the outside of the gear box and is connected with a guide wheel, the rope wheel and the guide wheel are arranged between the base and the panel, and a press wheel is arranged on one side of the base and located at the rope wheel.

[0005] An extension part is arranged on the upper end of the gear box, the extension part is provided with a guide groove, the gear box extension part is connected with a follow-up block and a handle through a shaft four, the follow-up block is provided with a block groove on one side and a handle driving groove on the other side, one end of the shaft one extends to the block groove through the guide groove, the handle is provided with a handle push block on the inner side of the follow-up block, the handle push block is rotatably arranged in the handle driving groove and drives the follow-up block to rotate with the handle, a small angle rotation between the base and the gear box body around the shaft two can be realized by rotating the handle at a large angle, and the distance between the press wheel and the rope wheel is adjusted labor-savingly.

[0006] The rope wheel is provided with at least two grooves for accommodating the rope, and a guide wheel is arranged on one side of the rope wheel and connected with a shaft five penetrating the gear box, a third transmission gear is connected to the shaft five and located in the gear box, and the third transmission gear is engaged with the first transmission gear.

[0007] As an improvement of the winch lifter, a reset torsional spring is arranged in the handle.

[0008] As an improvement of the winch lifter, a first outer ring is mounted on the outer side of the shaft one.

[0009] As an improvement of the winch lifter, the pressing wheel is rotatably connected to the base.

[0010] As an improvement of the winch lifter, an elastic pin is arranged on the base, and a clamping hole for the elastic pin to pass through is arranged on the panel.

[0011] As an improvement of the winch lifter, a lifting ring is connected to the lower end of the base.

[0012] As an improvement of the winch lifter, the gear box comprises a front gear box body and a rear gear box body fixedly connected, and the input gear, the first transmission gear, the second transmission gear, the third transmission gear and the output gear are all mounted between the front gear box body and the rear gear box body.

[0013] As an improvement of the winch lifter, a one-way ratchet is arranged on one side of the output gear, and the one-way ratchet is pressed on the output gear through a spring.

[0014] As an improvement of the winch lifter, any one of the input gear, the first transmission gear or the second transmission gear is provided with a one-way bearing, and the third transmission gear is provided with a one-way bearing.

[0015] As an improvement of the winch lifter, an anti-reverse device is arranged on one end of the output shaft, and the anti-reverse device comprises a centrifugal throwing column mounted on one end of the output shaft, and a one-way chuck matched with the centrifugal throwing column and preventing the centrifugal throwing column from reversing is arranged on the outer side of the centrifugal throwing column.

[0016] The winch lifter, the rope wheel is provided with a plurality of grooves for accommodating the rope, so that the rope can wind around the rope wheel for multiple turns (multiple turns), the rope wheel and the guide wheel move synchronously, greatly increase the grip between the rope and the rope, increase the lifting capacity, and when descending, the guide wheel idles, which can reduce the grip between the rope and the rope, and facilitate smooth sliding. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described in the following embodiment only constitute some of the embodiments of the present application, and together with the embodiments of the present application are used to explain the present application, and do not constitute a limitation on the present application. In the drawings:

[0018] Figure 1 It is a complete structure schematic view of the present application;

[0019] Figure 2 It is a structure schematic view of the present application after the panel is opened;

[0020] Figure 3 It is a structure schematic view of the present application after the handle is disassembled;

[0021] Figure 4 It is a schematic view of the handle rotation direction of the present application;

[0022] Figure 5 It is an explosion view of the present application;

[0023] Figure 6 It is a comparative schematic view of the rotation amplitude of the present application;

[0024] Figure 7 It is a structure schematic view in the gear box of the present application;

[0025] Figure 8 It is a structure schematic view of the present application after the gear box is disassembled;

[0026] Figure 9 It is a structure schematic view of the present application winding with the rope. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the present application will be described clearly and completely in the following by combining the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute some of the embodiments of the present application, and not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the present application.

[0028] Please refer to Figures 1-9 The present application provides the following technical scheme: an embodiment of a winch lifter, comprising a base 1, the front side of the base 1 is hinged with a panel 3 through a shaft one 2, the panel 3 can rotate around the shaft one 2, so as to expose a rope wheel 10 and a guide wheel 11, which is convenient for assembling the rope;

[0029] The rear side of the base 1 is hinged with a gear box 5 through a shaft two 4, so that the whole composed of the base 1 and the panel 3 can rotate aroundFigure 5 The A-A axis in the figure rotates with the gear box 5 by a maximum angle a, so as to adjust the grip of the rope with the product, when lifting, the grip needs to be increased, when descending, the grip needs to be reduced;

[0030] The gear box 5 is provided with a connecting shaft 54, one end of the connecting shaft 54 extends to the outside of the gear box 5 and is provided with a drill connecting port 541, the connecting shaft is driven by an input gear 542 coaxially connected with the connecting shaft to drive a first transmission gear 55, the first transmission gear 55 is coaxially connected with a second transmission gear 56, the second transmission gear 56 drives an output gear 57, the output gear 57 is connected with an output shaft 571, the output shaft 571 extends to the outside of the gear box and is connected with a rope wheel 10, the rope wheel 10 is arranged between the base 1 and the panel 3, and the base 1 is provided with a press wheel 6 on one side of the rope wheel;

[0031] The drill bit is inserted into the connecting port 541 of the connecting shaft 54, so that the output force of the drill is transmitted through the input gear 542, the first transmission gear 55, the second transmission gear 56, the output gear 57 and the rope wheel 10 in sequence, and is output through the input gear 542, the first transmission gear 55, the third transmission gear 58, the shaft five 12 and the guide wheel 11 in sequence, so as to lift the weight;

[0032] The gear box 5 is provided with an extension 50, the extension 50 is provided with a guide groove 53, the extension 50 of the gear box 5 is connected with a follow-up block 8 and a handle 9 through a shaft four 7, one side of the follow-up block 8 is provided with a block groove 82 and the other side is provided with a handle driving groove 81, one end of the shaft one 2 extends to the block groove through the guide groove, the handle 9 is provided with a handle push block 91 towards the inner side of the follow-up block, the handle push block is rotatably arranged in the handle driving groove and drives the follow-up block to rotate with the handle, rotating the handle 9 by a large angle b can make the base and the gear box 5 rotate around the shaft two 4 Figure 5 The A-A axis in the figure rotates with the gear box 5 by a maximum angle a, so as to adjust the grip of the rope with the product, when lifting, the grip needs to be increased, when descending, the grip needs to be reduced;

[0033] The rope wheel 10 is provided with at least two grooves 101 for accommodating the rope, one side of the rope wheel 10 is provided with a guide wheel 11 for changing the direction of the rope, the guide wheel 11 is connected with a shaft five 12 penetrating the gear box, the shaft five 12 is connected with a third transmission gear 58 located in the gear box, the third transmission gear 58 is engaged with the first transmission gear 55, through the action of the guide wheel 11, the rope in one of the grooves 101 can be changed to the other groove 101, realizing the multi-turn wrapping of the rope around the rope wheel, in the embodiment, two grooves 101 are preferred, in other embodiments, according to the need of the grip, 3, 4... any number of grooves 101 can be opened.

[0034] The handle 9 is provided with a reset torsion spring, which is used to automatically reset the handle to the closed state after the handle is opened Figure 4 by the elastic force of the reset torsion spring. Figure 1

[0035] The outer side of the shaft 2 is provided with a roller or a groove 20. When the upper end of the rope passes through the roller or the groove 20, the roller or the groove 20 plays a guiding, wear-resistant and smooth role. When the rope is under load, the roller or the groove 20 causes the rope to generate tension, pushes the rope wheel 10 to compress the rope against the compression wheel 6, and thus locks the rope.

[0036] The compression wheel 6 is rotatably connected to the base 1.

[0037] The base 1 is provided with an elastic pin 14, and the panel 3 is provided with a clamping hole 140 for the elastic pin 14 to pass through. When the panel 3 needs to be opened, the elastic pin 14 is first pressed to release the locking state, and then the panel 3 is rotated to facilitate the installation or removal of the rope. When the panel 3 needs to be locked for lifting or lowering, the panel 3 is rotated by hand to move the clamping hole 140 on the panel 3 to the elastic pin 14 to lock. In the embodiment, two clamping holes 140 are provided to prevent the panel from easily separating and increase safety.

[0038] The lower end of the base 1 is provided with a hanging hole or connected with a lifting ring 13 for connecting the body or fixing an anchor point for lifting or lowering operation.

[0039] The gear box 5 includes a front gear box body 51 and a rear gear box body 52 fixedly connected, and the input gear 542, the first transmission gear 55, the second transmission gear 56, the third transmission gear 58 and the output gear 57 are all installed between the front gear box body 51 and the rear gear box body 52.

[0040] One side of the output gear 57 is provided with a one-way ratchet 574, and the one-way ratchet 574 is pressed on the output gear 57 by a spring to lock the output gear 57, thereby locking the rope wheel 10 to prevent reverse rotation from falling.

[0041] Any one of the input gear 542, the first transmission gear 55 or the second transmission gear 56 is provided with a one-way bearing to prevent the output gear 571 from reversing to cause the electric drill to hit; the third transmission gear 58 is provided with a one-way bearing to realize the idling of the guide wheel 11 when descending, and the reverse power cannot be transmitted to the input shaft.

[0042] One end of the output shaft 571 is provided with an anti-reverse device, and the anti-reverse device includes a centrifugal throwing column 572 installed at one end of the output shaft 571, and the outer side of the centrifugal throwing column 572 is provided with a one-way chuck 573 matched therewith to prevent the centrifugal throwing column 572 from reversing. When falling occurs, the centrifugal throwing column 572 is thrown at high speed, and thus is clamped by the one-way chuck 573.

[0043] ​The working principle or usage process of this utility model is as follows: This utility model can be used to lift workers to work at heights, as well as to lift goods. Taking lifting operators as an example, initially, press the elastic pin 14 to release the locked state, and then open the panel 3 to the open state. Figure 2 As shown, the rope is... Figure 8 The winding method shown is combined with this utility model, and then the panel 3 is closed to the locked state as shown in Figure 1. Then, the handle is kept in the retracted state as shown in Figure 1. Figure 1 With the handle in the indicated position, insert the drill bit into the connector 541. The drill's output force is transmitted to the rope pulley 10 and the guide pulley 11, both rotating synchronously in the same direction to lift the load. To lower the load, manually operate the handle 9. Figure 6 As shown, rotating handle 9 by a large angle b can cause the base and gearbox to rotate around axis 4 by a small angle a, i.e. Figure 5 The entire assembly consisting of base 1 and panel 3 rotates around axis AA and gearbox 5 at a small angle α, thereby effortlessly adjusting the distance between pressure wheel and rope wheel, thus reducing the grip of the rope on the product and achieving descent. During descent, guide wheel 11 rotates freely, further reducing the grip of the rope on the product, making descent smoother.

[0044] Finally, it should be noted that the above descriptions are merely preferred embodiments of this utility model and are not intended to limit the utility model. The selection and detailed description of these embodiments in this specification are for the purpose of better explaining the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A winch lifter, comprising a base (1), wherein a panel (3) is hinged to the front side of the base (1) via a shaft (2), and a gearbox (5) is hinged to the rear side of the base (1) via a shaft (4). A connecting shaft (54) is provided inside the gearbox (5), one end of the connecting shaft (54) extends to the outside of the gearbox and is provided with an electric drill connection port (541). The connecting shaft (54) drives a first transmission gear (55) via an input gear (542) coaxially connected to it. The first transmission gear (55) is coaxially connected to a second transmission gear (56). The second transmission gear (56) drives an output gear (57). The output gear (57) drives an output shaft (571). The output shaft (571) extends to the outside of the gearbox and is connected to a rope wheel (10). The rope wheel (10) is disposed between the base (1) and the panel (3). A pressure wheel (6) is provided on one side of the rope wheel on the base (1). The upper end of the gearbox (5) is provided with an extension (50), the extension (50) is provided with a guide groove (53), the extension (50) of the gearbox (5) is connected to the follower block (8) and the handle (9) through the shaft four (7), the follower block (8) is provided with a block groove (82) on one side and a handle drive groove (81) on the other side, one end of the shaft one (2) passes through the guide groove (53) and extends into the block groove (82), the handle (9) is provided with a handle push block (91) facing the inside of the follower block (8), the handle push block (91) is rotatably provided in the handle drive groove (81) and drives the follower block (8) to rotate with the handle (9), by rotating the handle at a large angle, the base and the gearbox body open and close at a small angle around the shaft two (4), thereby adjusting the distance between the pressure roller (6) and the rope wheel (10) with less effort. The rope wheel (10) has at least two grooves (101) for accommodating ropes. A guide wheel (11) is provided on one side of the rope wheel (10). The guide wheel (11) is connected to a shaft five (12) that passes through the gearbox body. A third transmission gear (58) located in the gearbox body is connected to the shaft five (12). The third transmission gear (58) meshes with the first transmission gear (55).

2. The winch hoist according to claim 1, characterized in that: A reset torsion spring is provided inside the handle (9).

3. A winch hoist according to claim 1, characterized in that: A guide wheel or guide groove (20) is installed on the outside of the shaft (2).

4. A winch hoist according to claim 1, characterized in that: The pressure roller (6) is rotatably connected to the base (1).

5. A winch hoist according to claim 1, characterized in that: The base (1) is provided with an elastic pin (14), and the panel is provided with a locking hole (140) for the elastic pin to pass through.

6. A winch hoist according to claim 1, characterized in that: The lower end of the base (1) is provided with a hanging hole or connected with a hanging ring (13).

7. A winch hoist according to claim 1, characterized in that: The gearbox (5) includes a front gearbox body (51) and a rear gearbox body (52) that are fixedly connected. The input gear (542), the first transmission gear (55), the second transmission gear (56), the third transmission gear (58) and the output gear (57) are all installed between the front gearbox body (51) and the rear gearbox body (52).

8. A winch hoist according to claim 1, characterized in that: One side of the output gear (57) is provided with a one-way ratchet (574), which is pressed against the output gear (57) by a spring.

9. A winch hoist according to claim 1, characterized in that: Any one of the input gear (542), the first transmission gear (55) or the second transmission gear (56) is provided with a one-way bearing, and the third transmission gear (58) is provided with a one-way bearing.

10. A winch hoist according to claim 1, characterized in that: One end of the output shaft (571) is provided with an anti-reverse device, which includes a centrifugal column (572) installed at one end of the output shaft (571), and a one-way chuck (573) that cooperates with the centrifugal column (572) to prevent it from reversing.

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