Hoisting device

Abstract

The present invention discloses a hoisting device, which comprises a frame and a lifting mechanism. The lifting mechanism includes a lifting mechanism main body and a support main body. The lifting mechanism main body is connected to the frame and can translate and rotate relative to the frame. The support main body is connected to the frame in a translatable manner and is connected to the lifting mechanism main body in a rotatable manner. The hoisting device of the present invention has the advantages of small volume, simple operation, stability and safety, etc.

Description

Technical Field

[0001] The present invention relates to the field of hoisting. Background Art

[0002] Existing hoisting devices are usually large-scale equipment, which is set on the ground and uses a relatively high cantilever to lift objects. However, such large-scale hoisting devices cannot be adapted to the handling of small-sized objects. For some small-sized objects, they are usually carried by workers.

[0003] Therefore, existing hoisting devices need to be further improved to meet the needs of handling small-sized objects. Summary of the Invention

[0004] To achieve the above object, the present invention provides a hoisting device, which includes a frame and a lifting mechanism. The lifting mechanism includes a lifting mechanism main body and a support main body. The lifting mechanism main body is connected to the frame and can translate and rotate relative to the frame. The support main body is translatably connected to the frame and rotatably connected to the lifting mechanism main body.

[0005] Further, the lifting mechanism further includes a pair of bent connecting members. The lifting mechanism main body and the support main body are connected by the pair of bent connecting members, and the lifting mechanism main body can rotate relative to the pair of bent connecting members and the support main body.

[0006] Further, the lifting mechanism further includes a pair of first elastic members. One end of each of the pair of first elastic members is connected to the frame, and the other end of each of the pair of first elastic members is connected to a corresponding one of the pair of bent connecting members, so that the lifting mechanism main body and the support main body translate relative to the frame.

[0007] Further, the lifting mechanism further includes a pair of second elastic members. One end of each of the pair of second elastic members is connected to the frame, and the other end of each of the pair of second elastic members is connected to the lifting mechanism main body, so that the lifting mechanism main body rotates relative to the support main body.

[0008] Further, the hoisting device further includes a rope, a power device and a hook. The rope is connected to the frame, the lifting mechanism main body and the support main body. The power device is connected to one end of the rope to pull or release the rope. The hook is connected to the other end of the rope. Wherein, when the power device pulls the rope, the rope can make the lifting mechanism main body and the support main body translate relative to the frame, and can make the lifting mechanism main body rotate relative to the support main body.

[0009] Further, the lifting mechanism has a first working position, a second working position, and a third working position. Among them, the pair of first elastic members provide power for the lifting mechanism to move from the first working position to the second working position, the pair of second elastic members provide power for the lifting mechanism to move from the second working position to the third working position, and the power device provides power for the lifting mechanism to move from the third working position to the second working position and for the lifting mechanism to move from the second working position to the first working position.

[0010] Further, the frame is provided with a first row of guiding grooves and a second row of guiding grooves. The lifting mechanism body is provided with a first pair of wheels and a second pair of wheels, and the first pair of wheels and the second pair of wheels are received in the first row of guiding grooves. The support body is provided with a third pair of wheels, and the third pair of wheels are received in the second row of guiding grooves.

[0011] Further, when the lifting mechanism is in the first working position, the first pair of wheels are located at the left end of the first row of guiding grooves, and the third pair of wheels are located at the left end of the second row of guiding grooves. When the lifting mechanism is in the second working position, the second pair of wheels are located at the right end of the first row of guiding grooves, and the third pair of wheels are located at the right end of the second row of guiding grooves.

[0012] Further, the rope is arranged to bypass the first pair of wheels and the third pair of wheels.

[0013] Further, the frame includes a frame body, a first support member, and a second support member. The first support member and the second support member are rotatably connected to the frame body. Among them, the lifting mechanism body and the support body are arranged on the frame body and can move relative to the frame body.

[0014] The hoisting device of the present invention has the advantages of small volume, simple operation, stability and safety.

[0015] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the drawings to fully understand the purpose, features and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front perspective view of the hoisting device of the present invention in the first working position;

[0017] Figure 2 is a top perspective view of the hoisting device of the present invention in the first working position;

[0018] Figure 3 is a front perspective view of the hoisting device of the present invention in the second working position;

[0019] Figure 4 is the front perspective view of the hoisting device of the present invention in the third working position;

[0020] Figure 5 is the front perspective view of the hoisting device of the present invention in the folded state;

[0021] Figure 6 is the front perspective view of the hoisting device of the present invention in the first working position;

[0022] Figure 7 is the front perspective view of the hoisting device of the present invention in the second working position;

[0023] Figure 8 is the front perspective view of the hoisting device of the present invention in the third working position.

[0024] Explanation of the reference numerals in the drawings: frame 11, frame body 101, first rod 102, second rod 103, third rod 104, fourth rod 105, release opening 107, first support member 111, second support member 112, third support member 113, first row of guide grooves 131, second row of guide grooves 132, upper rod 141, lower rod 142, pulley 143, lifting mechanism 21, lifting mechanism body 201, support body 202, second elastic member 203, first elastic member 204, bent connecting member 205, first pair of wheels 206, second pair of wheels 207, fourth pair of wheels 208, free rod 209, support rod 210, third pair of wheels 211, power mechanism 31, power device 301, rope 302, rope fixing wheel 303, hook 41, building 50, upper floor slab 51, lower floor slab 52, side beam 53, counterweight 60 Detailed implementation manners

[0025] The following uses specific specific examples to illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0026] It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. Therefore, only the components related to the present invention are shown in the drawings, rather than being drawn according to the number, shape, and size of the components in actual implementation. The type, quantity, and ratio of each component in actual implementation can be arbitrarily changed, and the component layout type may also be more complex.

[0027] The embodiments of the present invention will be described below with reference to the accompanying drawings. In the following drawings, the same components are denoted by the same reference numerals. Although directional terms such as "upper", "lower", "left", "right" etc. are used in the present invention to describe the embodiments, these terms are only for convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the disclosed embodiments of the present invention can be arranged in different directions, these directional terms are only for illustration and should not be construed as limitations.

[0028] Ordinal numbers such as "first", "second" etc. used in this application are only for distinction and identification and do not have any other meanings. Without special indication, they do not represent a specific order and do not have a specific relevance. For example, the term "first support member" itself does not imply the existence of a "second support member", and the term "second support member" itself does not imply the existence of a "first support member" either.

[0029] As Figures 1-4 shown, the hoisting device of the present invention includes a frame 11, a lifting mechanism 21, a power mechanism 31 and a hook 41. Among them, the frame 11 is used to support the lifting mechanism 21. The lifting mechanism 21 can move relative to the frame 11. The power mechanism 31 is arranged on the frame 11 and cooperates with the lifting mechanism 21 to lift or lower the hook 41.

[0030] As Figures 1-4 shown, the frame 11 includes a frame body 101, a first support member 111, a second support member 112 and a third support member 113. Among them, the frame body 101 is generally a rectangular frame with a thickness. Specifically, it includes a first rod 102, a second rod 103, a third rod 104 and a fourth rod 105 that enclose in sequence. The first rod 102 and the third rod 104 are both provided with a first row of guide grooves 131 and a second row of guide grooves 132 to cooperate with the lifting mechanism 21, so as to guide the lifting mechanism 21 to move in the horizontal direction (i.e., the left - right direction). Among them, the first row of guide grooves 131 is located above the second row of guide grooves 132. The first row of guide grooves 131 extends substantially from the left end to the right end of the first rod 102 and the third rod 104 in the horizontal direction. The upper surface of the middle part of the first row of guide grooves 131 is provided with a release opening 107 for releasing the lifting mechanism main body 201 in the lifting mechanism 21. The second row of guide grooves 132 extends substantially from the left end of the first rod 102 and the third rod 104 to the middle in the horizontal direction.

[0031] As Figures 1-4As shown, the first support member 111 and the second support member 112 are rotatably connected to the frame body 101. Among them, the first support member 111 includes two vertical rods and a horizontal rod. The upper ends of the two vertical rods are respectively rotatably connected to the left ends of the first rod 102 and the third rod 104. The horizontal rod is horizontally arranged between the two vertical rods to enhance the stability of the two vertical rods. The structure of the second support member 112 is similar to that of the first support member 111. The second support member 112 also includes two vertical rods and a horizontal rod. The upper ends of the two vertical rods are respectively rotatably connected to positions near the right ends of the first rod 102 and the third rod 104. The horizontal rod is horizontally arranged between the two vertical rods to enhance the stability of the two vertical rods. The two vertical rods in the first support member 111 and the two vertical rods in the second support member 112 have the same structure. Specifically, the vertical rod includes an upper rod 141, a lower rod 142, an elastic member inside the rod (not shown), and a fixing member (not shown). Both the upper rod 141 and the lower rod 142 are hollow rods. The upper rod 141 is sleeved in the lower rod 142, and the lower rod 142 can move up and down relative to the upper rod 141 to adjust the height at both ends of the vertical rod. The elastic member inside the rod is arranged in the hollow parts of the upper rod 141 and the lower rod 142 and is always in a compressed state to assist the upper rod 141 and the lower rod 142 to move away from each other. The fixing member is arranged on the upper rod 141 and / or the lower rod 142. When the distance between the upper end of the upper rod 141 and the lower end of the lower rod 142 (i.e., the height at both ends of the vertical rod) reaches the target height, the fixing member can fix the relative positions of the upper rod 141 and the lower rod 142 to keep the height at both ends of the vertical rod at the target height. In addition, the vertical rod also includes a pulley 143. It is arranged at the upper part of the lower rod 142 and faces outward (i.e., left and right). When the first support member 111 and the second support member 112 are respectively rotated towards the frame body 101 to be parallel to the frame body 101, the pulley 143 can face downward so that the user can push the hoisting device, making the handling of the hoisting device more convenient.

[0032] As Figures 1-4 shown, the third support member 113 includes a pair of horizontal rods. One end of the pair of horizontal rods is connected to the first support member 111, and the other end of the pair of horizontal rods is connected to the second support member 112. The third support member 113 is connected to the first support member 111 and the second support member 112 through a quickly detachable and installable connecting member (not shown) to enhance the stability of the first support member 111 and the second support member 112 at the target height.

[0033] As Figures 1-4As shown in the figure, the lifting mechanism 21 includes a lifting mechanism main body 201, a support main body 202, a pair of free rods 209, a pair of first elastic members 204, a pair of second elastic members 203, a pair of bent connecting members 205, and four pairs of wheels. Among them, the lifting mechanism main body 201 is generally a rectangular frame with a thickness (i.e., formed by a front frame, a left frame, a rear frame, and a right frame connected in sequence). Two pairs of the four pairs of wheels are arranged on the lifting mechanism main body 201. Specifically, the first pair of wheels 206 are respectively arranged on the left parts of the front and rear frames of the lifting mechanism main body 201, and the second pair of wheels 207 are respectively arranged in the middle parts of the front and rear frames of the lifting mechanism main body 201 and are accommodated in the first row of guide grooves 131 to drive the lifting mechanism main body 201 to move horizontally. When the second pair of wheels 207 move to the rightmost end of the first row of guide grooves 131, the positions of the first pair of wheels 206 can be aligned with the release opening 107 in the middle of the first row of guide grooves 131. In addition, a support rod 210 is also provided in the lifting mechanism main body 201. The support rod 210 is connected to the front frame and the right frame of the lifting mechanism main body 201 and is arranged substantially parallel to the left frame and the right frame.

[0034] As Figures 1-4 shown, the upper ends of the pair of free rods 209 are rotatably connected to the support rod 210. One of the four pairs of wheels is provided at the lower ends of the pair of free rods 209. Specifically, the third pair of wheels 211 are arranged at the lower ends of the free rods 209.

[0035] As Figures 1-4 shown, the support main body 202 is generally a rectangular frame with a thickness (i.e., formed by a front frame, a left frame, a rear frame, and a right frame connected in sequence). One of the four pairs of wheels is arranged on the support main body 202. Specifically, the fourth pair of wheels 208 are respectively arranged on the left parts of the front and rear frames of the support main body 202 and are accommodated in the second row of guide grooves 132 to drive the support main body 202 to move horizontally. The right ends of the front and rear frames of the support main body 202 are respectively connected to a pair of bent connecting members 205.

[0036] As Figures 1-4 shown, each of the pair of bent connecting members 205 is generally a Z-shaped structure for rotatably connecting the lifting mechanism main body 201 and the support main body 202. Specifically, one end of each of the pair of bent connecting members 205 is respectively connected to the right ends of the front and rear frames of the support main body 202, and the other end of each of the pair of bent connecting members 205 is respectively connected to the rotating shafts of the second pair of wheels 207. In this way, the lifting mechanism main body 201 and the support main body 202 can move horizontally together relative to the frame 11, and the lifting mechanism main body 201 can rotate relative to the support main body 202 around the rotating shaft of the second pair of wheels 207.

[0037] As Figures 1-4As shown, a pair of first elastic members 204 are used to connect the frame body 101 and a pair of bent connecting members 205, and provide a force for the horizontal movement of the lifting mechanism body 201 and the support body 202 relative to the frame 11. Specifically, one end of a pair of first elastic members 204 is connected to the second rod 103 of the frame body 101, and the other end of a pair of first elastic members 204 is connected to a pair of bent connecting members 205. When the left part of the support body 202 contacts the frame body 101 (i.e., the support body 202 is located at the leftmost side), a pair of first elastic members 204 are in a compressed state. The compressed pair of first elastic members 204 can push the connected lifting mechanism body 201 and support body 202 to move horizontally to the right together.

[0038] As Figures 1-4 shown, a pair of second elastic members 203 are used to connect the lifting mechanism body 201 and the support body 202, and provide a force for the rotation of the lifting mechanism body 201 relative to the support body 202. Specifically, one end of a pair of second elastic members 203 is respectively connected to the right part of the front and rear frames of the support body 202, and the other end of a pair of second elastic members 203 is respectively connected to the left part of the front and rear frames of the lifting mechanism body 201. When the lifting mechanism body 201 is parallel to the support body 202, a pair of second elastic members 203 are in a compressed state. The compressed pair of second elastic members 203 can push the lifting mechanism body 201 to rotate relative to the support body 202 around the rotation axis of the second pair of wheels 207.

[0039] In the present invention, the elastic member inside the rod, a pair of first elastic members 204, and a pair of second elastic members 203 are all telescopic rods with springs. Those skilled in the art can understand that they can also be other elastic members.

[0040] As Figures 1-4As shown in the figure, the power mechanism 31 includes a power device 301, a rope 302, and a rope guiding assembly. Among them, the power device 301 is arranged on the frame 11 and is used to pull or release the rope 302. The rope guiding assembly is used to restrict the movement path of the rope 302. Specifically, the power device 301 is arranged on the first support member 111. The power device 301 includes a motor (not shown) that can rotate bidirectionally. When the motor rotates forward, the motor can release the rope 302. When the motor rotates in reverse, the motor can tighten the rope 302 so that the rope 302 is wound around the output end of the motor. The rope guiding assembly includes a pair of rope fixing wheels 303 and the above-mentioned first pair of wheels 206 and fourth pair of wheels 208. Specifically, a pair of rope fixing wheels 303 are respectively arranged on the left parts of the first rod 102 and the third rod 104 of the frame 11. One end of the rope 302 is connected to the motor in the power device 301. The other end of the rope 302 sequentially passes above a pair of rope fixing wheels 303, below the fourth pair of wheels 208, above the first pair of wheels 206, and above the third pair of wheels 211 and is then connected to the hook 41. Among them, the rope 302 generates a force by passing around a pair of rope fixing wheels 303 and the fourth pair of wheels 208 to overcome the force generated by a pair of first elastic members 204 in a compressed state. The rope 302 generates a force by passing around the fourth pair of wheels 208 and the first pair of wheels 206 to overcome the force generated by a pair of second elastic members 203 in a compressed state.

[0041] When the hoisting device of the present invention realizes the hoisting function, the frame 11 of the hoisting device is first installed in place, and then relying on the cooperation of the lifting mechanism 21 and the power mechanism 31, the object hoisted on the hook 41 can be lifted or lowered. During the operation of the lifting mechanism 21, the lifting mechanism 21 has three working positions, namely: the first working position, the second working position, and the third working position. The following will be combined with Figures 1-4 to specifically illustrate the specific positions and cooperation relationships of each component when the lifting mechanism 21 is located at the three positions.

[0042] Figure 1 and Figure 2 show a front perspective view and a top perspective view of the lifting mechanism 21 located at the first working position. At this time, the lifting mechanism main body 201 and the support main body 202 are arranged in parallel. The lifting mechanism main body 201 and the support main body 202 are both located at the leftmost end of the frame main body 101 (that is, the first pair of wheels 206 is located at the leftmost end of the first row of guiding grooves 131, and the fourth pair of wheels 208 is located at the leftmost end of the second row of guiding grooves 132). A pair of first elastic members 204 and a pair of second elastic members 203 are both in a compressed state. Among them, the rope 302 can apply a leftward force to the lifting mechanism main body 201 and the support main body 202, thereby keeping them in position and making the hook 41 close to the third pair of wheels 211 on the free rod 209.

[0043] Figure 3 A front perspective view showing the lifting mechanism 21 in the second working position is presented. At this time, the main body 201 of the lifting mechanism and the support main body 202 are arranged in parallel. Both the main body 201 of the lifting mechanism and the support main body 202 are located at the rightmost end of the main body 101 of the frame (i.e., the second pair of wheels 207 is located at the rightmost end of the first row of guide grooves 131, and the fourth pair of wheels 208 is located at the rightmost end of the second row of guide grooves 132). The main body 201 of the lifting mechanism located on the right side of the second pair of wheels 207 extends (i.e., protrudes beyond) the main body 101 of the frame. A pair of first elastic members 204 is in a compressed state or a natural length state. A pair of second elastic members 203 is in a compressed state. Among them, the rope 302 can apply a downward force to the main body 201 of the lifting mechanism, thereby holding it in position and bringing the hook 41 closer to the third pair of wheels 211 on the free rod 209.

[0044] Figure 4 A front perspective view showing the lifting mechanism 21 in the third working position is presented. At this time, the support main body 202 is arranged in parallel with the main body 101 of the frame. The main body 201 of the lifting mechanism is arranged substantially vertically. More specifically, the main body 201 of the lifting mechanism is arranged obliquely with respect to the vertical direction. The left end of the main body 201 of the lifting mechanism is located above the main body 101 of the frame, while the right end of the main body 201 of the lifting mechanism is located below the main body 101 of the frame. A pair of free rods 209 droop naturally under gravity. The support main body 202 is still located at the rightmost end of the main body 101 of the frame (i.e., the fourth pair of wheels 208 is located at the rightmost end of the second row of guide grooves 132). The second pair of wheels 207 is located at the rightmost end of the first row of guide grooves 131. A pair of first elastic members 204 and a pair of second elastic members 203 are in a compressed state or a natural length state.

[0045] When the hoisting device needs to lower the object hoisted on the hook 41, the lifting mechanism 21 moves from the first working position to the second working position, and then from the second working position to the third working position. When the hoisting device needs to lift the object hoisted on the hook 41, the lifting mechanism 21 moves from the third working position to the second working position, and then from the second working position to the first working position.

[0046] The following refers to Figures 5-7 , taking the example of lowering an object from a high floor (such as the third floor) of a building to the ground, to introduce the working principle of the hoisting device:

[0047] Figures 5-8Building 50 is shown. The third floor of building 50 includes an upper floor slab 51 and a lower floor slab 52. An object needs to be lowered from the third floor to the ground (not shown). First, the user can transport the hoisting device of the present invention to the third floor. During transportation, the hoisting device is in a folded state. The pulley 143 can contact the floor surface of the third floor. The user can push the hoisting device to near the predetermined position with a relatively small force. Subsequently, the user rotates the first support member 111 and the second support member 112 to the vertical position and adjusts the heights of the first support member 111 and the second support member 112 according to the storey height of the third floor. After adjusting the heights of the first support member 111 and the second support member 112 in place, the user installs the third support member 113 and places it horizontally between the first support member 111 and the second support member 112. Then, the user can start the power device 301 and adjust the length of the rope 302 to hold the lifting mechanism 21 in the first working position.

[0048] It should be noted that the installation position of the second support member 112 should be as close as possible to the outer edge of the building. In the example of the present invention, the second support member 112 is installed on the side beam 53 of the lower floor slab 52. It should also be noted that when adjusting the heights of the first support member 111 and the second support member 112, it should be avoided that when the lifting mechanism main body 201 in the lifting mechanism 21 moves to the third working position, its top collides with the upper floor slab 51.

[0049] Figure 6 The hoisting device set in place is shown, where the lifting mechanism main body 201 is in the first working position. A counterweight 60 is provided on the first support member 111 of the hoisting device to prevent the hoisting device from tipping over due to the too heavy weight of the hoisted object during hoisting. The weight of the counterweight 60 can be set according to the weight of the object to be hoisted. Subsequently, the object is placed on the lifting mechanism main body 201 and connected to the hook 41. After the object is connected to the hook 41, the user can start the power device 301 to make the motor rotate forward. At this time, the motor will release the rope 302, and the rope 302 will no longer apply a leftward force to the lifting mechanism main body 201 and the support main body 202 through a pair of rope fixing wheels 303 and the fourth pair of wheels 208. A pair of first elastic members 204 in a compressed state will apply a rightward force to the connected lifting mechanism main body 201, support main body 202 and a pair of second elastic members 203, so that the connected lifting mechanism main body 201, support main body 202 and a pair of second elastic members 203 move to the right until the lifting mechanism 21 reaches the second working position. When the lifting mechanism 21 moves from the first working position to the second working position (such as Figure 7During the process shown in the figure, since the object is carried by the main body 201 of the lifting mechanism, the object will move to the right together. After the lifting mechanism 21 reaches the second working position, the user continues to maintain the operating state of the power device 301 to make the motor continue to rotate forward. At this time, the motor continues to release the rope 302, and the rope 302 no longer applies a downward force to the main body 201 of the lifting mechanism through the fourth pair of wheels 208 and the first pair of wheels 206. A pair of second elastic members 203 in a compressed state will apply a right-upper force to the left end of the main body 201 of the lifting mechanism, so that the left end of the main body 201 of the lifting mechanism moves away from the support main body 202. In other words, the main body 201 of the lifting mechanism will rotate clockwise around the second pair of wheels 207 until the lifting mechanism 21 reaches the third working position. During the process of the lifting mechanism 21 moving from the second working position to the third working position (as shown in Figure 8 the figure), the hook 41 applies a force to the object to lift the object. After the lifting mechanism 21 is in the third working position, the user can continue to maintain the operating state of the power device 301 to make the motor continue to rotate forward. At this time, the motor continues to release the rope 302, and the hook 41 and the object descend together. As an example, the hook 41 and the object can descend all the way to the first floor. So far, the object can be lifted from the third floor to the ground on the first floor by the hoisting device. It should be noted that since the main body 201 of the lifting mechanism 21 located at the third working position is arranged obliquely relative to the frame main body 101, when the object descends, the object will not contact the main body 201 of the lifting mechanism or the frame main body 101, so that it can be smoothly hoisted to the ground on the first floor.

[0050] When it is necessary to lift an object from a lower position to a higher position (for example, hoist from the ground on the first floor to the third floor), the hoisting device can be transported to the third floor and installed in place. Then the lifting mechanism 21 is placed in the third working position, and the rope 302 is released to lower the hook 41 to the first floor. Then the user connects the object to the hook 41 and moves the lifting mechanism 21 from the third working position to the first working position. The detailed process of the lifting mechanism 21 moving from the third working position to the first working position is roughly opposite to the process of moving from the first working position to the third working position described above, and will not be elaborated here. So far, the object can be lifted from the ground on the first floor to the third floor by the hoisting device.

[0051] The hoisting device of the present invention has at least the following advantages:

[0052] First, the hoisting device of the present invention is small in size and can be installed in a floor according to the height of the floor, so that an object can be lifted to the target floor or lowered from a designated floor.

[0053] Second, the operation of the hoisting device of the present invention is simple. Specifically, the user only needs to control the power device 301 in the hoisting device to lift or lower an object.

[0054] Third, the hoisting device of the present invention can transport objects stably and safely. Specifically, when the lifting mechanism 21 in the hoisting device is in the first working position, the user can place the object on the main body 201 of the lifting mechanism. At this time, the object is inside the building. This setting can prevent the object from falling when connecting the object to the hoisting device, thus ensuring the stable and safe transportation of the object. Secondly, a counterweight 60 with a weight matching the object is provided on the hoisting device, which can prevent the hoisting device from tipping over due to the too heavy weight of the object during hoisting. In addition, a pair of free rods 209 are provided in the hoisting device. The thickness of the object can determine the position of the lower end of the free rod 209. During hoisting, the object is suspended by two hooks 41, and the left side of the object will contact the main body 201 of the lifting mechanism. Therefore, the object will not rotate during hoisting. All of these can ensure the stable and safe transportation of the object.

[0055] Fourth, the hoisting device of the present invention is easy to be set in place and can be coordinated with the structure of the ground. Specifically, the first support member 111 and the second support member 112 in the hoisting device of the present invention are foldable and provided with pulleys 143, so that the user can push the hoisting device to the target position. In addition, the first support member 111 and the second support member 112 can be telescopic to coordinate with the structure of the ground.

[0056] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A hoisting device, characterized in that, Comprising: A frame; And A lifting mechanism, including: a lifting mechanism main body, the lifting mechanism main body is connected to the frame and can translate and rotate relative to the frame; and A support main body, the support main body is translatably connected to the frame and rotatably connected to the lifting mechanism main body; Wherein, the lifting mechanism further includes: A pair of bent connecting members, the lifting mechanism main body and the support main body are connected by the pair of bent connecting members, and the lifting mechanism main body can rotate relative to the pair of bent connecting members and the support main body; A pair of first elastic members, one end of each of the pair of first elastic members is connected to the frame, and the other end of each of the pair of first elastic members is connected to a corresponding one of the pair of bent connecting members, so that the lifting mechanism main body and the support main body translate relative to the frame; A pair of second elastic members, one end of each of the pair of second elastic members is connected to the frame, and the other end of each of the pair of second elastic members is connected to the lifting mechanism main body, so that the lifting mechanism main body rotates relative to the support main body; This hoisting device further includes: A rope, the rope is connected to the frame, the lifting mechanism main body and the support main body; A power device, the power device is connected to one end of the rope to pull or release the rope; and A hook, the hook is connected to the other end of the rope; Wherein, when the power device pulls the rope, the rope can make the lifting mechanism main body and the support main body translate relative to the frame, and can make the lifting mechanism main body rotate relative to the support main body.

2. The hoisting device according to claim 1, wherein: The lifting mechanism has a first working position, a second working position and a third working position; Wherein, the pair of first elastic members provide power for the lifting mechanism to move from the first working position to the second working position, the pair of second elastic members provide power for the lifting mechanism to move from the second working position to the third working position, and the power device provides power for the lifting mechanism to move from the third working position to the second working position and for the lifting mechanism to move from the second working position to the first working position.

3. The hoisting device according to claim 2, wherein: The frame is provided with a first row of guiding grooves and a second row of guiding grooves; The lifting mechanism main body is provided with a first pair of wheels and a second pair of wheels, and the first pair of wheels and the second pair of wheels are received in the first row of guiding grooves; The support main body is provided with a third pair of wheels, and the third pair of wheels are received in the second row of guiding grooves.

4. The hoisting device according to claim 3, wherein: When the lifting mechanism is in the first working position, the first pair of wheels are located at the left end of the first row of guiding grooves, and the third pair of wheels are located at the left end of the second row of guiding grooves; When the lifting mechanism is in the second working position, the second pair of wheels is located at the right end of the first row of guiding grooves, and the third pair of wheels is located at the right end of the second row of guiding grooves.

5. The hoisting device according to claim 3, wherein: The rope is arranged to bypass the first pair of wheels and the third pair of wheels.

6. The hoisting device according to claim 1, wherein: The frame includes a frame body, a first support member, and a second support member. The first support member and the second support member are rotatably connected to the frame body; Wherein, the main body of the lifting mechanism and the main support body are arranged on the frame body and can move relative to the frame body.

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