Lifting mechanism

Abstract

The utility model discloses a lifting mechanism which comprises a machine frame, a first rotating piece, a second rotating piece and a transmission piece, and the machine frame is provided with a first rotating shaft and a second rotating shaft which extend horizontally and are arranged in parallel. The first rotating piece is rotatably arranged on the first rotating shaft; the second rotating part is rotatably arranged on the first rotating shaft; the transmission part is rotatably arranged on the second rotating shaft, a first transmission structure and a second transmission structure are formed on the transmission part, the first transmission structure and the second transmission structure are located on the two opposite sides of the second rotating shaft respectively, the first transmission structure is in transmission connection with the first rotating part, and the second transmission structure is in transmission connection with the second rotating part; when the first rotating part rotates forwards under the action of external force, the first rotating part can push the first transmission structure to drive the transmission part to rotate, so that the second transmission structure drives the second rotating part to rotate reversely. The lifting mechanism is more stable in lifting.

Description

Technical Field

[0001] This utility model relates to the field of lifting frame technology, and in particular to a lifting mechanism. Background Technology

[0002] In related technologies, the lifting mechanism includes a first rotating rod, a second rotating rod, a frame, and a drive structure. The upper ends of the first rotating rod and the second rotating rod are hinged to each other on the frame. The drive structure can drive the second rotating rod to rotate, thereby causing the lower end of the second rotating rod to move closer to or away from the lower end of the first rotating rod, so as to realize the lifting and lowering of the frame. However, when the drive structure drives the lower end of the second rotating rod to move closer to or away from the lower end of the first rotating rod, there is a situation where the first rotating rod and the second rotating rod move in the same direction. At this time, the first rotating rod and the second rotating rod will drive the frame to move horizontally, which will cause the lifting mechanism to be unstable. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a lifting mechanism that provides more stable lifting.

[0004] A lifting mechanism according to an embodiment of the present invention includes a frame, a first rotating member, a second rotating member, and a transmission member. The frame is provided with a first rotating shaft and a second rotating shaft that extend horizontally and are arranged parallel to each other. The first rotating member is rotatably mounted on the first rotating shaft, and a first support portion is formed on the peripheral edge of the first rotating member. The second rotating member is rotatably mounted on the first rotating shaft, and a second support portion is formed on the peripheral edge of the second rotating member. The second support portion is used to cooperate with the first support portion to support the frame. The transmission member is rotatably mounted on the second rotating shaft, and a first transmission structure and a second transmission structure are formed on the transmission member. The first transmission structure and the second transmission structure are respectively located on opposite sides of the second rotating shaft. The first transmission structure is connected to the first rotating member, and the second transmission structure is connected to the second rotating member. When the first rotating member rotates forward under the action of an external force, the first rotating member can push the first transmission structure to drive the transmission member to rotate, so that the second transmission structure drives the second rotating member to rotate in the opposite direction.

[0005] A lifting mechanism according to an embodiment of the present utility model has at least the following technical effects:

[0006] When the lifting mechanism of this application is used, the object to be carried is placed on the frame. When it is necessary to raise the frame, an external force drives the first rotating component to rotate forward around the first rotating shaft. During the rotation, the first rotating component pushes the first transmission structure, which in turn drives the transmission component to rotate around the second rotating shaft. During the rotation of the transmission component, the second transmission structure drives the second rotating component to rotate in the opposite direction around the first rotating shaft. In this case, while the first rotating component rotates forward around the first rotating shaft, the second rotating component rotates in the opposite direction, causing the lower ends of the first and second rotating components to move closer together. This causes the first rotating shaft to rise vertically, thereby achieving the lifting effect. The current frame lifts the object to be carried. When the frame needs to be lowered, an external force drives the first rotating component to rotate in the opposite direction around the first axis. During this rotation, the first rotating component pushes the first transmission structure, causing the first transmission structure to drive the transmission component to rotate around the second axis. During this rotation, the second transmission structure drives the second rotating component to rotate in the forward direction around the first axis. In this case, while the first rotating component rotates in the opposite direction around the first axis, the second rotating component rotates in the forward direction around the first axis, causing the lower ends of the first and second rotating components to move away from each other. This causes the first axis to descend vertically, thereby actively lifting the object to be carried. From the above, it can be seen that in the lifting mechanism of this application, when the first rotating component rotates, the second rotating component can rotate synchronously in the opposite direction relative to the first rotating component to achieve the rise or fall of the first axis along the vertical axis, thereby achieving the rise or fall of the frame along the vertical axis. In the lifting mechanism of this application, the horizontal displacement of the frame during the lifting process is smaller, thus making the vertical lifting of the frame in the lifting mechanism of this application more stable.

[0007] According to some embodiments of the present invention, a lifting mechanism has a first transmission structure that is a first elongated hole extending radially along a second rotating shaft, and a second transmission structure that is a second elongated hole extending radially along a second rotating shaft. A first insert portion and a second insert portion are respectively provided on the first rotating member and the second rotating member, and the first insert portion and the second insert portion are slidably inserted into the first elongated hole and the second elongated hole, respectively.

[0008] According to some embodiments of the present invention, a lifting mechanism is provided in which a first elongated hole and a second elongated hole are symmetrically arranged about the center of a second rotating shaft.

[0009] According to some embodiments of the present invention, a lifting mechanism is provided in which multiple second rotating shafts are circumferentially distributed around a first rotating shaft, and multiple transmission components are provided, with one transmission component rotatably disposed on each second rotating shaft.

[0010] According to some embodiments of the present invention, a lifting mechanism is provided with a transmission component located between a first rotating component and a second rotating component.

[0011] According to some embodiments of the present utility model, a lifting mechanism includes a frame and an end cover. The two ends of the first rotating shaft are respectively connected to the frame and the end cover. The second rotating shaft is disposed on the end cover. The second rotating member is disposed between the first rotating member and the end cover. The second rotating member is provided with an arc-shaped clearance hole. The second rotating shaft is slidably inserted through the clearance hole.

[0012] According to some embodiments of the present invention, a lifting mechanism further includes a driver, which is mounted on the frame. The output end of the driver is connected to a first rotating member and is used to drive the first rotating member to rotate around a first rotating shaft.

[0013] According to some embodiments of the present invention, a lifting mechanism is provided with a receiving groove on the end face of the first rotating member near the second rotating member, and a transmission member is disposed in the receiving groove.

[0014] According to some embodiments of the present invention, a lifting mechanism is provided with a limiting groove at one end of the first rotating member near the second rotating member, and the second rotating member is partially accommodated in the limiting groove.

[0015] According to some embodiments of the present invention, a lifting mechanism is provided with multiple sets of a first rotating shaft, a second rotating shaft, a first rotating component, a second rotating component, and a transmission component.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of the lifting mechanism according to one embodiment of the present invention;

[0019] Figure 2 for Figure 1 A sectional view of the lifting mechanism in the middle;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of the first rotating component.

[0021] Figure label:

[0022] Frame 100, first rotating shaft 101, second rotating shaft 102, frame 110, end cover 120;

[0023] First rotating component 200, receiving groove 200a, limiting groove 200b, first support part 210, first insertion part 220;

[0024] Second rotating member 300, clearance hole 300a, second support part 310, second insertion part 320;

[0025] Transmission component 400, first transmission structure 410, second transmission structure 420. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, left, right, front, and back, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] The following is for reference. Figures 1 to 3 A lifting mechanism according to an embodiment of the present utility model will be described in detail.

[0031] refer to Figure 1 and Figure 2A lifting mechanism according to an embodiment of the present invention includes a frame 100, a first rotating member 200, a second rotating member 300, and a transmission member 400. The frame 100 is provided with a first rotating shaft 101 and a second rotating shaft 102 that extend horizontally and are arranged parallel to each other. The first rotating member 200 is rotatably mounted on the first rotating shaft 101, and a first support portion 210 is formed on the peripheral edge of the first rotating member 200. The second rotating member 300 is rotatably mounted on the first rotating shaft 101, and a second support portion 310 is formed on the peripheral edge of the second rotating member 300. The second support portion 310 is used to cooperate with the first support portion 210 to support the frame 100. The transmission member 400... The transmission member 400 is rotatably mounted on the second rotating shaft 102. A first transmission structure 410 and a second transmission structure 420 are formed on the transmission member 400. The first transmission structure 410 and the second transmission structure 420 are respectively located on opposite sides of the second rotating shaft 102. The first transmission structure 410 is connected to the first rotating member 200, and the second transmission structure 420 is connected to the second rotating member 300. When the first rotating member 200 rotates forward under the action of an external force, the first rotating member 200 can push the first transmission structure 410 to drive the transmission member 400 to rotate, so that the second transmission structure 420 drives the second rotating member 300 to rotate in the opposite direction.

[0032] When the lifting mechanism of this application is used, the object to be carried is placed on the frame 100. When it is necessary to raise the frame 100, the first rotating member 200 is driven by external force to rotate forward around the first rotating shaft 101. During the rotation, the first rotating member 200 pushes the first transmission structure 410, so that the first transmission structure 410 drives the transmission member 400 to rotate around the second rotating shaft 102. During the rotation of the transmission member 400, the second transmission structure 420 drives the second rotating member 300 to rotate in the opposite direction around the first rotating shaft 101. In this case, while the first rotating member 200 rotates forward around the first rotating shaft 101, the second rotating member 300 rotates in the opposite direction around the first rotating shaft 101, so that the lower ends of the first rotating member 200 and the lower ends of the second rotating member 300 move closer to each other, thereby causing the first rotating shaft 101 to rise in the vertical direction, thus achieving the lifting effect. The frame 100 lifts the object to be carried. When the frame 100 needs to be lowered, the first rotating component 200 is driven by external force to rotate in the opposite direction around the first rotating shaft 101. During the rotation, the first rotating component 200 pushes the first transmission structure 410, which in turn drives the transmission component 400 to rotate around the second rotating shaft 102. During the rotation, the second transmission structure 420 drives the second rotating component 300 to rotate in the forward direction around the first rotating shaft 101. In this case, while the first rotating component 200 rotates in the opposite direction around the first rotating shaft 101, the second rotating component 300 rotates in the forward direction around the first rotating shaft 101, causing the lower ends of the first rotating component 200 and the second rotating component 300 to move away from each other. This causes the first rotating shaft 101 to descend vertically, thereby actively lifting the object to be carried. As can be seen from the above, in the lifting mechanism of this application, when the first rotating member 200 rotates, the second rotating member 300 can rotate synchronously in the opposite direction relative to the first rotating member 200, so as to realize the rise or fall of the first rotating shaft 101 along the vertical axis, thereby realizing the rise or fall of the frame 100 along the vertical axis. In the lifting mechanism of this application, the horizontal displacement of the frame 100 during the lifting process is smaller, thereby making the vertical lifting of the frame 100 in the lifting mechanism of this application more stable.

[0033] refer to Figure 2In some embodiments of this utility model, the first transmission structure 410 is a first elongated hole extending radially along the second rotating shaft 102, and the second transmission structure 420 is a second elongated hole extending radially along the second rotating shaft 102. The first rotating member 200 and the second rotating member 300 are respectively provided with a first insertion portion 220 and a second insertion portion 320, and the first insertion portion 220 and the second insertion portion 320 are slidably inserted into the first elongated hole and the second elongated hole, respectively. Understandably, under the action of external force, the first rotating member 200 rotates forward around the first rotating shaft 101. During the forward rotation, the first insert portion 220 on the first rotating member 200 pushes the wall of the first elongated hole, causing the transmission member 400 to rotate in the opposite direction around the second rotating shaft 102. The wall of the second elongated hole on the transmission member 400 pushes the second insert portion 320 to rotate in the opposite direction, thereby causing the second rotating member 300 to rotate in the opposite direction. Under the action of external force, the first rotating member 200 rotates in the opposite direction around the first rotating shaft 101. During the reverse rotation, the first insert portion 220 on the first rotating member 200 pushes the wall of the first elongated hole, causing the transmission member 400 to rotate forward around the second rotating shaft 102. The wall of the second elongated hole on the transmission member 400 pushes the second insert portion 320 to rotate in the forward direction, thereby causing the second rotating member 300 to rotate in the forward direction.

[0034] Specifically, the first insertion portion 220 is disposed on the side of the second rotating shaft 102 close to the first rotating shaft 101, and the second insertion portion 320 is disposed on the side of the second rotating shaft 102 away from the first rotating shaft 101.

[0035] In some other embodiments of the present invention, the first insertion portion 220 may also be disposed on the side of the second rotating shaft 102 away from the first rotating shaft 101, while the second insertion portion 320 may be disposed on the side of the second rotating shaft 102 close to the first rotating shaft 101.

[0036] like Figure 2 As shown, in some embodiments, the first elongated hole and the second elongated hole are symmetrically arranged about the center of the second rotating shaft 102. It is understood that by symmetrically arranging the first elongated hole and the second elongated hole about the center of the second rotating shaft 102, when installing the lifting mechanism of this application, even if the first insert 220 passes through the second elongated hole and the second insert 320 passes through the first elongated hole, the lifting mechanism of this application can still function normally when connecting the first rotating member 200, the transmission member 400, and the second rotating member 300. The assembly process of the lifting mechanism in this application is also simpler.

[0037] refer to Figure 2In some embodiments of this utility model, multiple second rotating shafts 102 are circumferentially distributed around the first rotating shaft 101, and multiple transmission members 400 are provided. Each second rotating shaft 102 can be rotatably equipped with a transmission member 400. It can be understood that by distributing multiple second rotating shafts 102 circumferentially around the first rotating shaft 101, when the first rotating member 200 rotates around the first rotating shaft 101 under the action of an external force, the first rotating member 200 can drive the first transmission structure 410 on the multiple transmission members 400, thereby driving the multiple transmission members 400 to rotate simultaneously around the corresponding second rotating shaft 102. Thus, the second transmission structure 420 on the multiple transmission members 400 can drive the second rotating member 300 to rotate, making the synchronous counter-rotation between the first rotating member 200 and the second rotating member 300 more stable.

[0038] refer to Figure 1 and Figure 2 In some embodiments of this utility model, the transmission member 400 is disposed between the first rotating member 200 and the second rotating member 300. It is understood that by disposing the transmission member 400 between the first rotating member 200 and the second rotating member 300, it is not necessary to provide a clearance structure on the second rotating member 300 or the first rotating member 200 to avoid the first intersecting portion 220 or the second intersecting portion 320, and the transmission member 400 can be protected between the first rotating member 200 and the second rotating member 300.

[0039] like Figure 1 and Figure 2 As shown, in some embodiments, the frame 100 further includes a frame body 110 and an end cap 120. The two opposite ends of the first rotating shaft 101 are connected to the frame body 110 and the end cap 120, respectively. The second rotating shaft 102 is disposed on the end cap 120. The second rotating member 300 is disposed between the first rotating member 200 and the end cap 120. The second rotating member 300 is provided with an arc-shaped clearance hole 300a. The second rotating shaft 102 is slidably inserted through the clearance hole 300a.

[0040] It is understandable that by setting the arc-shaped clearance hole 300a, the second rotating shaft 102 can be slidably inserted through the second rotating member 300 and connected to the transmission member 400 between the first rotating member 200 and the second rotating member 300; when the second rotating member 300 rotates, the clearance hole 300a can limit the rotation angle of the second rotating member 300 on both sides of the hole wall in the circumferential direction of the second rotating shaft 102.

[0041] It is understandable that, since the two opposite ends of the first rotating member 200 are connected to the frame 110 and the end cap 120 respectively, the first rotating shaft 101, the second rotating shaft 102, the first rotating member 200 and the second rotating member 300 can all be located between the frame 110 and the end cap 120, so as to protect the first rotating shaft 101, the second rotating shaft 102, the first rotating member 200 and the second rotating member 300 through the end cap 120 and the frame 110.

[0042] like Figure 1 and Figure 2 As shown, in one embodiment, the lifting mechanism further includes a driver, which is mounted on the frame 110. The output end of the driver is connected to the first rotating member 200 and is used to drive the first rotating member 200 to rotate around the first rotating shaft 101. It can be understood that by connecting the driver to the first rotating member 200, the automatic rotation of the first rotating member 200 can be achieved, thereby enabling the lifting mechanism to automatically lift and lower.

[0043] Specifically, the driver is a motor, and the output shaft of the motor is connected to the first rotating component 200.

[0044] like Figure 3 As shown, in some embodiments, the first rotating member 200 has a receiving groove 200a on its end face near the second rotating member 300, and the transmission member 400 is disposed in the receiving groove 200a. It can be understood that by providing the receiving groove 200a on the end face of the first rotating member 200 near the second rotating member 300, the transmission member 400 can be completely accommodated in the receiving groove 200a, which further protects the transmission member 400 and reduces the overall space occupied by the lifting mechanism.

[0045] refer to Figure 1 and Figure 3 In some embodiments of this utility model, a limiting groove 200b is provided at one end of the first rotating member 200 near the second rotating member 300, and the second rotating member 300 is partially accommodated in the limiting groove 200b. It can be understood that by providing the limiting groove 200b on the first rotating member 200, when the second rotating member 300 rotates relative to the first rotating member 200 around the first rotating shaft 101, the two side groove walls of the first rotating member 200 in the circumferential direction of the first rotating shaft 101 can restrict the rotation of the second rotating member 300.

[0046] In some embodiments of this utility model, multiple sets of the first rotating shaft 101, the second rotating shaft 102, the first rotating member 200, the second rotating member 300, and the transmission member 400 are correspondingly provided. For example, as Figure 1As shown, the first rotating shaft 101, the second rotating shaft 102, the first rotating component 200, the second rotating component 300 and the transmission component 400 are respectively arranged in two sets. The frame 100 is supported by the two sets of first rotating components 200 and second rotating components 300 to realize the lifting and lowering of the frame 100, so that the frame 100 can be lifted and lowered more stably.

[0047] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lifting mechanism, characterized in that, include: A frame (100) is provided with a first rotating shaft (101) and a second rotating shaft (102) that extend horizontally and are arranged in parallel. The first rotating member (200) is rotatably disposed on the first rotating shaft (101), and a first support portion (210) is formed on the peripheral edge of the first rotating member (200). The second rotating member (300) is rotatably disposed on the first rotating shaft (101). A second support portion (310) is formed on the peripheral edge of the second rotating member (300). The second support portion (310) is used to cooperate with the first support portion (210) to support the frame. A transmission component (400) is rotatably mounted on the second rotating shaft (102). A first transmission structure (410) and a second transmission structure (420) are formed on the transmission component (400). The first transmission structure (410) and the second transmission structure (420) are respectively located on opposite sides of the second rotating shaft (102). The first transmission structure (410) is connected to the first rotating component (200), and the second transmission structure (420) is connected to the second rotating component (300). When the first rotating member (200) rotates in the forward direction under the action of an external force, the first rotating member (200) can push the first transmission structure (410) to drive the transmission member (400) to rotate, so that the second transmission structure (420) drives the second rotating member (300) to rotate in the reverse direction.

2. The lifting mechanism according to claim 1, characterized in that, The first transmission structure (410) is a first elongated hole extending radially along the second rotating shaft (102), and the second transmission structure (420) is a second elongated hole extending radially along the second rotating shaft (102). The first rotating member (200) and the second rotating member (300) are respectively provided with a first insertion part (220) and a second insertion part (320). The first insertion part (220) and the second insertion part (320) are slidably inserted into the first elongated hole and the second elongated hole, respectively.

3. A lifting mechanism according to claim 2, characterized in that, The first elongated hole and the second elongated hole are symmetrically arranged about the center of the second rotating shaft (102).

4. A lifting mechanism according to claim 1, characterized in that, The second rotating shaft (102) is circumferentially distributed with multiple such shafts around the first rotating shaft (101), and multiple transmission components (400) are provided. Each second rotating shaft (102) can be rotatably provided with one of the transmission components (400).

5. A lifting mechanism according to claim 1, characterized in that, The transmission component (400) is located between the first rotating component (200) and the second rotating component (300).

6. A lifting mechanism according to claim 5, characterized in that, The frame (100) also includes a frame body (110) and an end cap (120). The two ends of the first rotating shaft (101) are respectively connected to the frame body (110) and the end cap (120). The second rotating shaft (102) is disposed on the end cap (120). The second rotating member (300) is disposed between the first rotating member (200) and the end cap (120). The second rotating member (300) is provided with an arc-shaped clearance hole (300a). The second rotating shaft (102) is slidably inserted through the clearance hole (300a).

7. A lifting mechanism according to claim 6, characterized in that, It also includes a driver, which is disposed on the frame (110), and the output end of the driver is connected to the first rotating member (200) and is used to drive the first rotating member (200) to rotate around the first rotating shaft (101).

8. A lifting mechanism according to claim 5, characterized in that, The first rotating member (200) has a receiving groove (200a) on its end face near the second rotating member (300), and the transmission member (400) is disposed in the receiving groove (200a).

9. A lifting mechanism according to claim 1, characterized in that, The first rotating member (200) has a limiting groove (200b) at one end near the second rotating member (300), and the second rotating member (300) is partially accommodated in the limiting groove (200b).

10. A lifting mechanism according to claim 1, characterized in that, The first rotating shaft (101), the second rotating shaft (102), the first rotating component (200), the second rotating component (300) and the transmission component (400) are respectively provided in multiple sets.

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