Manual hoist capable of reducing hoisting swing

Abstract

The utility model is applicable to the field of hoisting equipment, and provides a chain hoist capable of reducing hoisting swing, which comprises a hoist main body, a hand chain, a steel wire rope, a damping component and a lifting hook, the damping component comprises a mounting seat and two damping units, and each damping unit comprises two fixing seats, a spring and a damping rod. The fixing seats are located at the two ends of the damping unit and fixedly connected with the two ends of the moving shaft, the two ends of the spring are fixedly connected with the two fixing seats correspondingly, and the two ends of the damping rod are fixedly connected with the two fixing seats correspondingly and arranged on the inner side of the spring. And the springs and the damping rods arranged in the damping units play a role in buffering and energy absorption, so that the influence of sudden pulling force on the hoisting stability is reduced, and the hoisting swing is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hoisting equipment field, especially relate to a manual hoist that reduces hoisting swing. BACKGROUND

[0002] Manual hoist is a kind of light and small hoisting equipment, and the heavy object is lifted or moved by pulling chain or operating handle by manpower.It is mainly divided into hand-operated hoist and hand plate hoist, and is widely used to lift and carry small equipment and goods.Because of simple structure, convenient use and low cost, manual hoist becomes the preferred hoisting tool in many places.

[0003] In the hoisting work of manual hoist, based on the power provided by manpower, it is difficult to guarantee the stability of moving speed, so that the hoisting goods are subjected to the change of force, and at the same time, the goods are easily affected by airflow in the air, which may cause the hoisting goods to swing in the air, and the safety of hoisting work and worker is greatly influenced. SUMMARY

[0004] The utility model embodiment purposes at providing a manual hoist that reduces hoisting swing, aims at solving the problem proposed in the background art.

[0005] The utility model embodiment is such a realization, a manual hoist that reduces hoisting swing, including hoist main part, hand-pulled chain, wire rope, damping assembly and lifting hook, the damping assembly includes mounting seat and two damping units, two pairs of limiting units, a pair of adjusting units and a pair of moving units are installed from both ends to the middle in the mounting seat interior, the limiting unit includes limiting roller shaft and the limiting roller of being installed in the outside of limiting roller shaft, the adjusting unit includes adjusting shaft and the adjusting roller of being installed in the outside of adjusting shaft, the limiting roller shaft and adjusting shaft are fixedly installed on the mounting seat, the moving unit includes moving shaft and the moving roller of being installed the outside of moving shaft, the movable groove is fixedly set up with the moving shaft both ends movable through movable groove and extend to the outside, two the damping unit includes two fixed seat, spring and damping rod, the fixed seat is located at the both ends of damping unit and is fixedly connected with the both ends of moving shaft, the both ends of spring are fixedly connected with two fixed seat respectively, the both ends of damping rod are fixedly connected with two fixed seat respectively and are arranged in the inside of spring.

[0006] As a further scheme of the utility model: the mounting seat is the hollow square tube of one-piece casting, and the movable groove width is same with the diameter of moving shaft.

[0007] As a further scheme of the utility model: the outside of limiting roller, adjusting roller and moving roller is all set with the arc-shaped groove of being adapted to the diameter of wire rope corresponding to wire rope.

[0008] As a further scheme of the utility model: the steel wire rope passes through the gap between the sides of a pair of limiting rollers from top to bottom, winds around the sides of the adjusting rollers and then winds around the sides of two moving rollers in an S shape, and then passes out of the gap between the sides of another pair of limiting rollers and is fixedly connected with the hook.

[0009] As a further scheme of the utility model: the damping rod comprises a rod body, a movable rod and a piston.

[0010] As a further scheme of the utility model: the rod body is filled with gas, one end of the movable rod is fixedly connected with the piston, and the piston is movably arranged in the rod body.

[0011] The utility model has the advantages of:

[0012] 1. The utility model discloses a hand chain hoist capable of reducing hoisting swing, when the steel wire rope is subjected to a suddenly increased tension, the spring and the damping rod arranged in the damping unit can play a buffering and energy absorbing role, thereby reducing the influence of the sudden tension on hoisting stability and reducing hoisting swing.

[0013] 2. The utility model discloses a hand chain hoist capable of reducing hoisting swing, the arc-shaped grooves arranged on the sides of the limiting rollers, the adjusting rollers and the moving rollers can conveniently limit the movement of the steel wire rope, ensure that the movement path of the steel wire rope does not change, and further improve the stability of the device.

[0014] 3. The utility model discloses a hand chain hoist capable of reducing hoisting swing, based on the structure of the damping unit, the multiple limiting rollers, the adjusting rollers and the moving rollers can adjust the path of the steel wire rope, thereby changing the stress direction of the moving unit, so that the moving unit moves towards each other when the two ends of the steel wire rope are subjected to tension, and further make the damping unit be subjected to extrusion, thereby ensuring the normal operation of the damping unit.

[0015] 4. The utility model discloses a hand chain hoist capable of reducing hoisting swing, by filling the rod body with gas, when the damping unit is subjected to pressure, the spring is subjected to extrusion and absorbs energy, at the same time, the rod body arranged to extrude the internal gas plays a damping role, reduces the moving speed of the spring, and further improves the damping effect. DRAWINGS

[0016] Fig. 1 The utility model discloses a hand chain hoist capable of reducing hoisting swing, and the internal view of the mounting seat of the hand chain hoist is provided.

[0017] Fig. 2 The utility model discloses a hand chain hoist capable of reducing hoisting swing, and the internal view of the mounting seat of the hand chain hoist is provided.

[0018] Fig. 3The utility model provides a kind of partial section view of manual hoist shock-absorbing assembly for reducing hoisting swing provided by the embodiment of the utility model.

[0019] In the drawing: hoist main body 1, hand chain 2, steel wire rope 3, shock-absorbing assembly 4, mounting seat 41, movable groove 411, limiting unit 42, limiting roller shaft 421, limiting roller 422, adjusting unit 43, adjusting shaft 431, adjusting roller 432, moving unit 44, moving shaft 441, moving roller 442, shock-absorbing unit 45, fixed seat 451, spring 452, damping rod 453, rod body 4531, movable rod 4532, piston 4533, lifting hook 5. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below in combination with drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0021] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0022] As Figs. 1 to 3 shown, a kind of manual hoist for reducing hoisting swing provided by the embodiment of the utility model, including hoist main body 1, hand chain 2, steel wire rope 3, shock-absorbing assembly 4 and lifting hook 5, the shock-absorbing assembly 4 includes mounting seat 41 and two shock-absorbing units 45, two pairs of limiting units 42, a pair of adjusting units 43 and a pair of moving units 44 are installed from both ends to middle inside the mounting seat 41, the limiting unit 42 includes limiting roller shaft 421 and limiting roller 422 installed on the outside of limiting roller shaft 421, the adjusting unit 43 includes adjusting shaft 431 and adjusting roller 432 installed on the outside of adjusting shaft 431, the limiting roller shaft 421 and adjusting shaft 431 are fixedly installed on mounting seat 41, the moving unit 44 includes moving shaft 441 and moving roller 442 installed on the outside of moving shaft 441, the movable groove 411 is fixedly provided with the mounting seat 41 corresponding moving shaft 441, the moving shaft 441 both ends movable through movable groove 411 and extend to outside, two the shock-absorbing unit 45 includes two fixed seat 451, spring 452 and damping rod 453, the fixed seat 451 is located at both ends of shock-absorbing unit 45 and is fixedly connected with moving shaft 441 both ends, the spring 452 both ends are fixedly connected with two fixed seat 451 respectively, the damping rod 453 both ends are fixedly connected with two fixed seat 451 respectively and set in the inside of spring 452.

[0023] In one embodiment of the utility model, when the steel wire rope 3 is subjected to sudden large tension, the spring 452 and the damping rod 453 arranged in the damping unit 45 play a buffering and energy absorbing role, thereby reducing the influence of sudden tension on hoisting stability and reducing hoisting swing.

[0024] As Fig. 1 and Fig. 3 shown, as another embodiment of the utility model, the mounting seat 41 is a hollow square tube integrally cast, and the width of the movable groove 411 is the same as the diameter of the moving shaft 441.

[0025] In one embodiment of the utility model, the integral casting mounting seat 41 improves the overall strength of the damping assembly 4 and protects the internal structure.

[0026] As Fig. 2 and Fig. 3 shown, as another embodiment of the utility model, the outer side of the limiting roller 422, the adjusting roller 432 and the moving roller 442 is provided with an arc-shaped groove corresponding to the steel wire rope 3 and matching the diameter of the steel wire rope 3.

[0027] In one embodiment of the utility model, the arc-shaped groove arranged on the side of the limiting roller 422, the adjusting roller 432 and the moving roller 442 facilitates limiting the movement of the steel wire rope 3, ensures that the movement path of the steel wire rope 3 does not change, and thus improves the stability of the device.

[0028] As Fig. 2 shown, as another embodiment of the utility model, the steel wire rope 3 passes through the gap between the sides of a pair of limiting rollers 422 from top to bottom, passes around the side of the adjusting roller 432, and is arranged in an "S" shape around the sides of two moving rollers 442. After passing around the side of another adjusting roller 432, it is fixedly connected with the lifting hook 5 from the gap between the sides of another pair of limiting rollers 422.

[0029] In one embodiment of the utility model, based on the structure of the damping unit 45, it cannot resist tension, and by arranging multiple limiting rollers 422, adjusting rollers 432 and moving rollers 442, the path of the steel wire rope 3 is adjusted, thereby changing the stress direction of the moving unit 44, so that when the two ends of the steel wire rope 3 are subjected to tension, the moving unit 44 moves towards each other, thereby causing the damping unit 45 to be squeezed, thereby ensuring the normal operation of the damping unit 45.

[0030] As Fig. 3 shown, as another embodiment of the utility model, the damping rod 453 includes a rod body 4531, a movable rod 4532 and a piston 4533.

[0031] Specific, the rod body 4531 is filled with gas, one end of the movable rod 4532 is fixedly connected with the piston 4533, and the piston 4533 is movably located in the rod body 4531.

[0032] In an embodiment of the utility model, through filling gas in the rod body 4531, when the damping unit 45 is compressed, the spring 452 is extruded and absorbs energy, simultaneously, the rod body 4531 set is extruded internal gas, plays the damping effect, reduces the moving speed of spring 452, further improves the damping effect.

[0033] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0034] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0035] In the description of the utility model, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0036] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term " install ", " link ", " connection " should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0037] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description of the specification is only for the sake of clarity, the skilled in the art should be regarded as a whole, the technical solution in each example can be combined appropriately, form other embodiments that the skilled in the art can understand.

Claims

1. A manual hoist for reducing hoisting sway, comprising a hoist body (1), a hand chain (2), a wire rope (3), a shock-absorbing assembly (4), and a hook (5), characterized in that, The damping assembly (4) includes a mounting base (41) and two damping units (45). The mounting base (41) has two pairs of limiting units (42), one pair of adjusting units (43), and one pair of moving units (44) installed inside from both ends to the middle. Each limiting unit (42) includes a limiting roller shaft (421) and a limiting roller (422) installed outside the limiting roller shaft (421). Each adjusting unit (43) includes an adjusting shaft (431) and an adjusting roller (432) installed outside the adjusting shaft (431). Both the limiting roller shaft (421) and the adjusting shaft (431) are fixedly mounted on the mounting base (41). Each moving unit (44) includes a moving shaft (441) and a mounting moving shaft. (441) The outer movable roller (442) has a movable groove (411) fixedly opened on the mounting base (41) corresponding to the movable shaft (441). The two ends of the movable shaft (441) extend to the outside through the movable groove (411). The two damping units (45) each include two fixed seats (451), springs (452) and damping rods (453). The fixed seats (451) are located at both ends of the damping unit (45) and are fixedly connected to both ends of the movable shaft (441). The two ends of the spring (452) are fixedly connected to the two fixed seats (451) respectively. The two ends of the damping rod (453) are fixedly connected to the two fixed seats (451) respectively and are arranged inside the spring (452).

2. A manual hoist for reducing hoisting sway according to claim 1, characterized in that, The mounting base (41) is a hollow square tube integrally cast, and the width of the movable groove (411) is the same as the diameter of the moving shaft (441).

3. A manual hoist for reducing hoisting sway according to claim 1, characterized in that, The outer sides of the limiting roller (422), adjusting roller (432) and moving roller (442) are all provided with arc-shaped grooves that are adapted to the diameter of the wire rope (3).

4. A manual hoist for reducing hoisting sway according to claim 3, characterized in that, The wire rope (3) passes through the gap between the sides of a pair of limiting rollers (422) from top to bottom, goes around the side of the adjusting roller (432) and is wound in an "S" shape around the sides of two moving rollers (442). After going around the side of another adjusting roller (432), it passes through the gap between the sides of another pair of limiting rollers (422) and is fixedly connected to the hook (5).

5. A manual hoist for reducing hoisting sway according to claim 1, characterized in that, The damping rod (453) includes a rod body (4531), a movable rod (4532), and a piston (4533).

6. A manual hoist for reducing hoisting sway according to claim 5, characterized in that, The rod body (4531) is filled with gas, and one end of the movable rod (4532) is fixedly connected to the piston (4533). The piston (4533) is movably located inside the rod body (4531).

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