Flexible transmission lifting connection device

Abstract

The present invention relates to a flexible transmission lifting connection device, comprising transmission units that can be connected end to end in sequence, the front end of the transmission unit is vertically provided with a movable connection part containing a clamping element and placed in a sleeve, the tail end of the transmission unit is vertically provided with a fixed connection part containing a clamping element, the movable connection part rises and is connected and matched with the fixed connection part to form a circular shaft body with an outer diameter that fits the inner diameter of the sleeve, and also includes a controller, so that the two clamping elements control the movable connection part and the fixed connection part to be in a locked or released state through displacement, when in the released state, the movable connection part descends and disengages from the fixed connection part, and the two transmission units are separated end to end; the device can conveniently and accurately realize the connection and splitting between the transmission units by lifting, so as to meet the transportation needs and inventory storage of various sites and different outputs, greatly improving the convenience and efficiency of use.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission equipment, and in particular to a flexible transmission lifting connection device. Background Art

[0002] At present, factories mainly use flexible transmission lines to transport goods, but the transmission lines are all long transmission lines with fixed structures, which are not conducive to warehouse storage, nor to changing the transmission length at any time according to the actual needs of the site or goods. Transporting goods is time-consuming and labor-intensive, seriously affecting site conversion, resulting in reduced production efficiency and inventory storage of transmission lines, which cannot meet the transportation needs of large-scale, multi-variety, and multi-batch products of modern enterprises. Therefore, there is an urgent need for an intelligent control device that can accurately and quickly realize the sequential connection and separation between transmission units to meet the transportation needs of various sites and different quantities of products and the convenient storage of transmission units. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned shortcomings and provide a flexible transmission lifting connection device, which controls the vertical movable connection part placed in the casing at the front end of the first transmission unit to rise and matches the vertical fixed connection part at the rear end of the second transmission unit in the casing to form a complete circular shaft body, and the clamping elements provided in the inner cavity of the movable connection part and the fixed connection part are shifted to control the circular shaft body to be in a locked or loosened state. When in the locked state, the two transmission units are connected, and when in the loosened state, the movable connection part descends and disengages from the fixed connection part, and the two transmission units are separated from head to tail. This device can conveniently and accurately realize the connection and splitting between transmission units through the lifting method, so as to meet the transportation needs and inventory storage of various sites and different outputs, greatly improving the convenience and efficiency of use.

[0004] The specific technical solutions provided by the present invention are as follows:

[0005] A flexible transmission lifting connection device includes transmission units that can be connected end to end in sequence, the front end of the transmission unit is vertically provided with a movable connection part containing a clamping element and placed in a sleeve, the tail end of the transmission unit is vertically provided with a fixed connection part containing a clamping element, the movable connection part rises and connects with the fixed connection part to form a circular shaft body with an outer diameter that fits the inner diameter of the sleeve, and also includes a controller, so that the two clamping elements control the movable connection part and the fixed connection part to be in a locked or loosened state through displacement. When in the loosened state, the movable connection part descends and disengages from the fixed connection part, and the two transmission units are separated end to end.

[0006] It should be noted that the same transmission unit is connected end to end in sequence, the tail end of the transmission unit is fixedly connected with a fixed connection part, and the head end is rotatably connected with a movable connection part placed in a fixed sleeve, and the outer diameter of the circular shaft body formed when the fixed connection part and the movable connection part are matched and connected in the sleeve is the same as the nominal size of the inner diameter of the sleeve.

[0007] Preferably, the transmission unit includes a rotatably connected semicircular rotating tray and a transmission device, the front end of the semicircular rotating tray extends downward to form a movable connection portion; the front end of the transmission device extends laterally to form the sleeve that partially extends out of the front end of the semicircular rotating tray, and the rear end of the transmission device extends downward to form a fixed connection portion.

[0008] Preferably, the inner circular area of ​​the sleeve is larger than the cross-sectional area of ​​the movable connection portion, so that when the two sections of the transmission units are joined end to end, the fixed connection portion is just inserted into the sleeve space.

[0009] Preferably, the fixed connection part and the movable connection part both include planes for fitting together as one, and the clamping elements also include planes for fitting together as one. When the movable connection part and the fixed connection part are in a locked state, the two fitting planes form an angle a, and when the movable connection part and the fixed connection part are in a loosened state, the two fitting planes overlap.

[0010] Preferably, the clamping element includes a connected telescopic element and a semicircular wedge, which are respectively placed in the cavities of the semicircular shaft bodies provided in the fixed connection part and the movable connection part, and the cavities are divided into two interconnected chambers, and the telescopic element and the semicircular wedge are placed in the two chambers.

[0011] Preferably, the telescopic element includes a compression spring, and the compression spring is in a free state, so that when the two semicircular shaft bodies are fitted together to form a complete circular shaft body, the two semicircular wedge planes are fitted together to form a complete circular wedge, and the outer wall of the circular wedge is tightly attached to the circular inner wall of the chamber, and the angle between the semicircular wedge fitting plane and the semicircular shaft body fitting plane is a, so that the two semicircular shaft bodies are in a locked connection state.

[0012] It should be noted that the compression spring and semicircular wedge are in a free state, and the other end of the compression spring is fixed on the inner wall of the chamber, while part of the semicircular wedge extends out of the plane of the semicircular shaft body, and the plane of the semicircular wedge forms an angle with the plane of the shaft body. When the two semicircular shaft body planes contact and gradually advance to increase the fitting area, under the push of the semicircular shaft body, the semicircular wedge gradually changes from inclined to vertical, and the compression spring is gradually compressed. Under the action of the spring force, the semicircular wedge and the plane of the semicircular shaft body that enter are gradually and tightly fitted until the two semicircular shaft body planes are tightly fitted to form a complete circular shaft body, and the outer diameter of the circular shaft body fits against the inner wall of the sleeve and is precisely limited by the sleeve.

[0013] Preferably, the sleeve is equipped with a sensing device connected to the controller, so that the compression spring drives the coincidence plane of the semicircular wedges and the coincidence plane of the semicircular shaft to be in the same plane, and the two semicircular shafts are in a loosened state, so that the movable connection part descends and disengages from the fixed connection part.

[0014] Preferably, the telescopic element includes a cylinder body connected to the controller, so that the two semicircular wedge planes are fitted to form an outer wall of a complete circular wedge that is tightly attached to the circular inner walls of the two chambers, and the angle between the semicircular wedge fitting plane and the semicircular shaft body fitting plane is a, and the two semicircular shaft bodies are in a compressed and locked state; and the semicircular wedge fitting plane coincides with the semicircular shaft body fitting plane, and the two semicircular shaft bodies are in a loosened state.

[0015] Preferably, the angle a between the semicircular wedge fitting plane and the semicircular shaft body fitting plane is:

[0016] 20°≤a≤45°.

[0017] Preferably, the transmission device is provided with a power device, and the power device drives the movable connection part to drive the fixed connection part to rotate relative to the sleeve, so that the two transmission units connected end to end form a set angle.

[0018] It should be noted that when the power device drives the semicircular shaft body of the movable connection part to rotate, the semicircular shaft body of the fixed connection part that is pressed and locked together also rotates together, thereby driving the transmission unit with the tail as the fixed connection part to rotate horizontally, so that the two transmission units connected head to tail form an angle in the range of plus or minus 90°.

[0019] The beneficial effects of the present invention are:

[0020] A flexible transmission lifting connection device controls the rise of a movable connection part arranged vertically at the front end of a first transmission unit and placed in a sleeve to match a fixed connection part arranged vertically at the rear end of a second transmission unit in the sleeve to form a complete circular shaft body. The clamping elements arranged in the inner cavities of the movable connection part and the fixed connection part are shifted to control the circular shaft body to be in a locked or released state. When in the locked state, the two transmission units are connected. When in the released state, the movable connection part descends and disengages from the fixed connection part, and the two transmission units are separated from head to tail. The device can conveniently and accurately realize the connection and splitting between transmission units by lifting, so as to meet the transportation needs and inventory storage of various sites and different outputs, thereby greatly improving the convenience and efficiency of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 It is a schematic diagram of the connection mode of the transmission unit of the present invention;

[0023] Figure 2 It is a schematic diagram of the locking connection between transmission units;

[0024] Figure 3 is a schematic diagram of the transmission unit structure;

[0025] Figure 4 yes Figure 3 EE cross-sectional view;

[0026] Figure 5 yes Figure 4 F-direction view;

[0027] Figure 6 It is a partial enlarged view of a structure of I;

[0028] Figure 7 This is a partial enlarged view of the structure of Ⅱ;

[0029] Figure 8 This is another partial enlarged view of the structure of I;

[0030] Fig. 9 This is another partial enlarged view of the structure of Ⅱ;

[0031] Fig.10 It is a schematic diagram of the angle formed by the first transmission unit and the second transmission unit.

[0032] Among them: 1—the first transmission unit; 2—the second transmission unit; 3—semicircular wedge A; 4—semicircular fixed axis; 5—semicircular rotating axis; 6—semicircular wedge B; 7—semicircular rotating tray; 8—transmission device; 9—induction device; 10—cylinder body B; 11—cylinder body A; 12—sleeve; 13—compression spring B; 14—compression spring A; 15—semicircular wedge B plane; 16—semicircular gear; 17—rack; 18—electric slide; 19—first large cavity; 20—second large cavity; 21—second small cavity; 22—first small cavity; 23—semicircular wedge A plane; 24—semicircular fixed axis plane; 25—semicircular rotating axis plane. DETAILED DESCRIPTION

[0033] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated; "multiple sections" means equal to or more than two sections; the subsequent description of the specification is a preferred embodiment of the present application, but the description is for the purpose of illustrating the general principles of the present application, and is not used to limit the scope of the present application. The scope of protection of this application shall be determined by the attached claims.

[0034] Reference Figure 1 — Fig.10 :

[0035] An embodiment of the present invention:

[0036] A flexible transmission lifting connection device is composed of multiple identical transmission units connected end to end in sequence. The transmission unit includes a semicircular rotating tray 7 located at the front and a transmission device 8 located at the rear, which are rotatably connected to each other. The front end of the semicircular rotating tray 7 is fixed downwardly to a movable connection part, and the rear end of the transmission device 8 is fixed downwardly to a fixed connection part.

[0037] The lower part of the semicircular rotating tray 7 is fixedly connected to the semicircular gear 16 placed in the same direction, and the lower part of the semicircular gear 16 is fixedly connected to the semicircular rotating shaft 5 of the movable connection part.

[0038] The movable connection part includes a semicircular rotating shaft 5 and a cavity inside the semicircular rotating shaft, and the cavity is divided into a second large cavity 20 and a second small cavity 21. The compression spring B13 is located in the second large cavity 20, and the compression spring B13 is vertically installed, with the upper end fixed on the inner wall of the chamber, and the lower end connected to the semicircular wedge B6 located in the second small cavity 21; a sleeve 12 partially extending from the front end of the transmission device 8 is formed by a transverse extension of the front end of the semicircular rotating tray 7, and the movable connection part is located in the sleeve 12, wherein the inner circle area of ​​the sleeve 12 is larger than the cross-sectional area of ​​the movable connection part, the semicircular rotating shaft 5 is attached to the inner wall of one side of the sleeve 12, and the semicircular rotating shaft plane 25 provided on the semicircular rotating shaft 5 is located in the central plane of the sleeve 12, and the semicircular wedge B6 in a free state partially extends out of the semicircular rotating shaft plane 25, that is, the semicircular wedge B plane 15 provided on the semicircular wedge B6 forms an angle with the semicircular rotating shaft plane 25.

[0039] The fixed connection part includes a semicircular fixed shaft 4 and a cavity inside the semicircular fixed shaft 4. The cavity is divided into a first large cavity 19 and a first small cavity 22. The compression spring A14 is located in the first large cavity 19, and the compression spring A14 is vertically installed, with the lower end fixed on the inner wall of the chamber, and the upper end connected to one end of the semicircular wedge A3 located in the first small cavity 22. The semicircular wedge A3 in a free state partially extends out of the semicircular fixed shaft plane 24, that is, the semicircular wedge A plane 23 provided on the semicircular wedge A3 forms an angle with the semicircular fixed shaft plane 24.

[0040] An electric slide 18 is also installed on the frame of the transmission device 8. The electric slide 18 is connected to and drives the rack 17 to make reciprocating motion. The rack 17 is matched and connected with the semicircular gear 16 to drive the semicircular gear 16 to rotate forward or reverse.

[0041] The sleeve 12 is equipped with a sensing device 9, which is connected to a controller (not shown). The sensing device 9 controls the movement of the compression spring A 14 and the compression spring B 13.

[0042] The tail end of the first transmission unit 1 is fixedly connected with a fixed connection part, which is matched and engaged with the head end of the second transmission unit 2 with a movable connection part including a sleeve 12, so as to form a circular shaft body whose outer diameter fits the inner diameter of the sleeve 12. The electric slide 18 drives the rack 17 to reciprocate, and the rack 17 drives the semicircular gear 16 to rotate forward or reversely. The semicircular gear 16 drives the fixed semicircular rotating shaft 5 to rotate, thereby driving the entire circular shaft body pressed together to rotate, driving the first transmission unit 1 to rotate and form an angle with the second transmission unit 2, and the angle range is -90° to +90°. Within this angle range, the computer software system (not shown) can intelligently control the precise change of the angle according to the actual path according to the design.

[0043] Specific ascending, descending connection and splitting process:

[0044] The fixed connection part of the first transmission unit 1 does not move, and the second transmission unit 2 rises under the intelligent control of the computer, driving the movable connection part to move upward from the lower end so that the semicircular fixed shaft 4 gradually enters the sleeve 12, and the semicircular fixed shaft plane 24 of the semicircular fixed shaft 4 gradually fits with the semicircular rotating shaft plane 25 of the semicircular rotating shaft 5, and the semicircular wedge A3 contacts with the semicircular rotating shaft plane 25. Under the action of the semicircular rotating shaft 5, the semicircular wedge A plane 23 of the semicircular wedge A3 gradually changes from inclined to vertical until it completely coincides with the semicircular rotating shaft plane 25. At this time, the semicircular wedge A3 further compresses the compression spring A14. Under the action of the spring force, the semicircular wedge A plane 23 of the first transmission unit 1 and the semicircular rotating shaft plane 25 of the second transmission unit 2 are in contact with each other. The rotating axis plane 25 fits tightly together, and finally, the semicircular wedge A plane 23 and the semicircular wedge B plane 15 are in the same plane. Under the pressure of the compression spring A14 and the compression spring B13, the semicircular wedge plane and the semicircular axis body plane are not in the same plane, forming an angle a, 20°≤a≤45°, and the arc-shaped outer walls of the semicircular wedge A and the semicircular wedge B6 fit with the arc-shaped inner walls of the two chambers, so that the semicircular rotating axis plane 25 and the semicircular fixed axis plane 24 fit tightly to form a complete circular axis body, which is in a locked connection state, and the outer diameter of the circular axis body fits on the inner wall of the sleeve and is precisely limited by the sleeve, effectively preventing the two from moving with each other, thereby completing the connection between the first transmission unit 1 and the second transmission unit 2.

[0045] When, through the intelligent control of the controller (not shown), the sensing device 9 controls the movement of the compression springs A14 and B13 so that the planes of the semicircular wedge A and the semicircular wedge B rotate and are in the same plane as the planes of the two semicircular shafts, the semicircular fixed shaft 4 and the semicircular rotating shaft 5 are in a loosened state, and the second section transmission unit 2 descends under the intelligent control of the computer, driving the movable connection part to move downward so that the semicircular fixed shaft 4 gradually detaches from the sleeve 12, thereby realizing the separation of the first section transmission unit 1 and the second section transmission unit 2.

[0046] Another embodiment of the present invention:

[0047] A flexible transmission lifting connection device is composed of multiple identical transmission units connected end to end in sequence. The transmission unit includes a semicircular rotating tray 7 located at the front and a transmission device 8 located at the rear, which are rotatably connected to each other. The front end of the semicircular rotating tray 7 is fixed downwardly to a movable connection part, and the rear end of the transmission device 8 is fixed downwardly to a fixed connection part.

[0048] The lower part of the semicircular rotating tray 7 is fixedly connected to the semicircular gear 16 placed in the same direction, and the lower part of the semicircular gear 16 is fixedly connected to the semicircular rotating shaft 5 of the movable connection part.

[0049] The movable connection part includes a semicircular rotating shaft 5 and a cavity inside the semicircular rotating shaft, the cavity is divided into a second large cavity 20 and a second small cavity 21, the cylinder body B10 is located in the second large cavity 20, and one end is connected to the semicircular wedge B6 located in the second small cavity 21; a sleeve 12 is formed by a transverse extension from the front end of the transmission device 8 and partially extends out of the front end of the semicircular rotating tray 7, the movable connection part is located in the sleeve 12, wherein the inner circle area of ​​the sleeve 12 is larger than the cross-sectional area of ​​the movable connection part, the semicircular rotating shaft 5 is attached to the inner wall of one side of the sleeve 12, the semicircular rotating shaft 5 is provided with a semicircular rotating shaft plane 25 is located in the center plane of the sleeve 12, and the semicircular wedge B6 in a free state partially extends out of the semicircular rotating shaft plane 25, that is, the semicircular wedge B plane 15 provided with the semicircular wedge B6 forms an angle with the semicircular rotating shaft plane 25.

[0050] The fixed connection part includes a semicircular fixed shaft 4 and a cavity inside the semicircular fixed shaft 4. The cavity is divided into a first large cavity 19 and a first small cavity 22. The cylinder body A11 is located in the first large cavity 19, and one end is connected to the semicircular wedge A3 located in the first small cavity 22. The semicircular wedge A3 in a free state partially extends out of the semicircular fixed shaft plane 24, that is, the semicircular wedge A plane 23 provided on the semicircular wedge A3 forms an angle with the semicircular fixed shaft plane 24.

[0051] An electric slide 18 is also installed on the frame of the transmission device 8. The electric slide 18 is connected to and drives the rack 17 to make reciprocating motion. The rack 17 is matched and connected with the semicircular gear 16 to drive the semicircular gear 16 to rotate forward or reverse.

[0052] A controller (not shown) is connected to the cylinder block A11 and the cylinder block B10.

[0053] The tail end of the first transmission unit 1 is fixedly connected with a fixed connection part, which is matched and engaged with the head end of the second transmission unit 2 with a movable connection part including a sleeve 12, so as to form a circular shaft body whose outer diameter fits the inner diameter of the sleeve 12. The electric slide 18 drives the rack 17 to reciprocate, and the rack 17 drives the semicircular gear 16 to rotate forward or reversely. The semicircular gear 16 drives the fixed semicircular rotating shaft 5 to rotate, thereby driving the entire circular shaft body pressed together to rotate, driving the first transmission unit 1 to rotate and form an angle with the second transmission unit 2, and the angle range is -90° to +90°. Within this angle range, the computer software system (not shown) can intelligently control the precise change of the angle according to the actual path according to the design.

[0054] Specific ascending, descending connection and splitting process:

[0055] The fixed connection part of the first transmission unit 1 does not move, and the second transmission unit 2 rises under the intelligent control of the computer, driving the movable connection part to move upward from the lower end so that the semicircular fixed shaft 4 gradually enters the sleeve 12, and the semicircular fixed shaft plane 24 of the semicircular fixed shaft 4 gradually fits with the semicircular rotating shaft plane 25 of the semicircular rotating shaft 5, and the semicircular wedge A3 contacts with the semicircular rotating shaft plane 25. Under the action of the semicircular rotating shaft 5, the semicircular wedge A plane 23 of the semicircular wedge A3 gradually changes from inclined to vertical. As the advancement continues, when the semicircular wedge A plane 23 and the semicircular wedge B plane 15 fit into the same plane, Under the pressure of cylinder body B10 and cylinder body A11, the semicircular wedge fitting plane and the semicircular shaft body fitting plane are not in the same plane, forming an angle a, 20°≤a≤45°, and the arc-shaped outer walls of the semicircular wedge A and the semicircular wedge B6 are both fitted with the arc-shaped inner walls of the two chambers, so that the semicircular rotating axis plane 25 and the semicircular fixed axis plane 24 are tightly fitted to form a complete circular shaft body, which is in a locked connection state, and the outer diameter of the circular shaft body is fitted to the inner wall of the sleeve and is precisely limited by the sleeve, effectively preventing the two from moving with each other, thereby completing the connection between the first transmission unit 1 and the second transmission unit 2.

[0056] Through the intelligent control of the controller (not shown), the cylinder bodies A11 and B10 make the planes of the semicircular wedge A and the semicircular wedge B rotate and be in the same plane as the planes of the two semicircular shafts, the semicircular fixed shaft 4 and the semicircular rotating shaft 5 are in a loosened state, and the second section transmission unit 2 descends under the intelligent control of the computer, driving the movable connection part to move downward so that the semicircular fixed shaft 4 gradually detaches from the sleeve 12, thereby realizing the separation of the first section transmission unit 1 and the second section transmission unit 2.

[0057] It should be noted that the first transmission unit and the second transmission unit are both transmission units with the same structure. The tail end of the transmission unit is fixedly connected with a fixed connection part, and the head end of the transmission unit is provided with a movable connection part placed in a sleeve. When the fixed connection part and the movable connection part are matched and connected in the sleeve, the outer diameter of the circular shaft body formed is the same as the nominal size of the inner diameter of the sleeve.

[0058] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A flexible transmission lifting connection device, comprising transmission units that can be connected end to end in sequence, characterized in that: The front end of the transmission unit is vertically provided with a movable connection part containing a clamping element and placed in the sleeve, and the rear end of the transmission unit is vertically provided with a fixed connection part containing a clamping element. The movable connection part rises and connects with the fixed connection part to form a circular shaft body with an outer diameter that fits the inner diameter of the sleeve. The controller is also included, so that the two clamping elements control the movable connection part and the fixed connection part to be in a locked or loosened state through displacement. When in the loosened state, the movable connection part descends and disengages from the fixed connection part, and the two transmission units are separated head to tail. The clamping element comprises a connected telescopic element and a semicircular wedge, which are respectively placed in the cavities of the semicircular shaft bodies respectively provided in the fixed connection part and the movable connection part, and the cavities are divided into two communicating chambers, and the telescopic element and the semicircular wedge are respectively placed in the two chambers. The telescopic element includes a compression spring, which is in a free state, so that when the two semicircular shafts are fitted together to form a complete circular shaft, the two semicircular wedge planes are fitted together to form a complete circular wedge, the outer wall of the circular wedge is tightly attached to the circular inner wall of the chamber, and the angle between the semicircular wedge fitting plane and the semicircular shaft fitting plane is a, so that the two semicircular shafts are in a locked connection state.

2. The flexible transmission lifting connection device according to claim 1, characterized in that: The transmission unit includes a rotatably connected semicircular rotating tray and a transmission device, wherein the front end of the semicircular rotating tray extends downward to form a movable connection portion; the front end of the transmission device extends laterally to form the sleeve that partially extends out of the front end of the semicircular rotating tray, and the rear end of the transmission device extends downward to form a fixed connection portion.

3. The flexible transmission lifting connection device according to claim 2, characterized in that: The inner circular area of ​​the sleeve is larger than the cross-sectional area of ​​the movable connection portion, so that when the two sections of the transmission units are joined end to end, the fixed connection portion is just inserted into the sleeve space.

4. The flexible transmission lifting connection device according to claim 3, characterized in that: The fixed connection part and the movable connection part both include planes for fitting together as one, and the clamping elements also include planes for fitting together as one. When the movable connection part and the fixed connection part are in a locked state, the two fitting planes form an angle a. When the movable connection part and the fixed connection part are in a loosened state, the two fitting planes overlap.

5. The flexible transmission lifting connection device according to claim 4, characterized in that: The sleeve is equipped with a sensing device connected to the controller, so that the compression spring drives the coincidence plane of the semicircular wedges and the coincidence plane of the semicircular shaft to be in the same plane, and the two semicircular shafts are in a loosened state, so that the movable connection part descends and disengages from the fixed connection part.

6. The flexible transmission lifting connection device according to claim 5, characterized in that: The telescopic element includes a cylinder body connected to the controller, so that the two semicircular wedge planes are fitted to form the outer wall of a complete circular wedge, which is tightly attached to the circular inner walls of the two chambers, and the angle between the semicircular wedge fitting plane and the semicircular shaft body fitting plane is a, and the two semicircular shaft bodies are in a compressed and locked state; and the semicircular wedge fitting plane is overlapped with the semicircular shaft body fitting plane, and the two semicircular shaft bodies are in a loosened state.

7. The flexible transmission lifting connection device according to any one of claims 2 to 6, characterized in that: The angle a between the semicircular wedge fitting plane and the semicircular shaft body fitting plane is: 20 0 ≤ a ≤45 0 .

8. The flexible transmission lifting connection device according to claim 7, characterized in that: The transmission device is provided with a power device, and the power device drives the movable connection part to drive the fixed connection part to rotate relative to the sleeve, so that the two transmission units connected end to end form an angle of plus or minus 90 0 range.

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