A lifting work platform

Abstract

The application relates to the technical field of welding operation platforms, and discloses a lifting type working platform which can support the lifting of a support seat of a higher construction point and can form overhanging and rotary adjustment according to the space around the equipment to facilitate the formation of a more flexible posture adjustment of the matched construction position, has a wider application range and is more practical, comprising a support seat and an operation platform, wherein the operation platform comprises a bottom frame, a rotating mounting frame is installed on the bottom frame, a first electric telescopic rod is installed in the bottom frame and is used for the rotary driving of the rotating mounting frame relative to the bottom frame, a telescopic frame and a second electric telescopic rod are installed in the rotating mounting frame, the second electric telescopic rod is used for the movement driving of the telescopic frame relative to the rotating mounting frame, a middle coupling assembly is installed on the telescopic frame, a follow-up parallel rod and an auxiliary parallel rod are installed on the middle coupling assembly, and the follow-up parallel rod and the auxiliary parallel rod are connected with the support seat.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of working platforms, in particular to a lifting working platform. BACKGROUND

[0002] It is well known that the lifting working platform is an important auxiliary equipment in modern operation, which realizes the precise adjustment and stable maintenance of the operation position through the integration of mechanical adjustment and control technology, and significantly improves the operation efficiency and quality at the construction point with higher position.

[0003] According to the search, the patent with the Chinese patent application number CN202211521075.5 discloses a mobile lifting working platform, which is generally described as including a base and a platform, the platform is fixed on the base, the base is connected with a fixed pulley and a hand winch, the platform is connected with a lifting ring, the hand winch includes a steel wire rope, the steel wire rope is connected with a hook, the steel wire rope passes through the fixed pulley, so that the hook hooks the lifting ring, the base is connected with universal wheels at the bottom, the base includes a bottom plate frame and a support frame, the universal wheels are connected on the bottom plate frame, one end of the support frame is fixed on the bottom plate, the other end is connected with a first guide plate, the first straight ladder is arranged between the bottom plate frame and the support frame, the patent with the Chinese patent application number CN201510075057.2 discloses a mobile lifting working platform, which is generally described as including a lifting working platform, a telescopic ladder and a mobile chassis, the lifting working platform is fixed on the mobile chassis, the telescopic ladder is fixedly connected with the upper end of the lifting working platform, and the lower end is movably connected with the mobile chassis, when in use, the operator sets up the telescopic ladder on the side of the platform to ascend and descend the working platform.

[0004] The above two sets of prior art solutions have platform lifting function, which can assist the operator to realize the construction work at different height positions, but the above two sets of solutions can only realize the change of the platform height in the vertical direction, and considering the actual environment of the construction site, it is inevitable that the lower part of the construction position will be inconvenient to drive in and support, so the practicability of the above two sets of solutions needs to be further strengthened. SUMMARY

[0005] In view of the shortcomings of the prior art, the present application provides a lifting working platform which can support the lifting of the support seat at the construction point with higher position, and can form overhanging and rotary adjustment according to the space around the equipment, so as to facilitate the formation of more flexible posture adjustment of the construction position, and has wider application range and is more practical.

[0006] To achieve the above object, the present application provides the following technical scheme: a lifting working platform, comprising a support base, further comprising an operation platform, the operation platform comprising a bottom frame, a rotating mounting frame is installed on the bottom frame, a first electric telescopic rod is installed in the bottom frame, the first electric telescopic rod is used for driving rotation of the rotating mounting frame relative to the bottom frame, a telescopic frame and a second electric telescopic rod are installed in the rotating mounting frame, the second electric telescopic rod is used for driving movement of the telescopic frame relative to the rotating mounting frame, a middle coupling assembly is installed on the telescopic frame, a follow-up parallel rod and an auxiliary parallel rod are installed on the middle coupling assembly, and the follow-up parallel rod and the auxiliary parallel rod are connected with the support base.

[0007] Preferably, an insertion cavity matched with the telescopic frame is arranged in the rotating mounting frame, a strip-shaped opening is formed in the side surface of the rotating mounting frame and communicates with the insertion cavity, an edge notch matched with the second electric telescopic rod is formed in the telescopic frame, the second electric telescopic rod is installed in the insertion cavity, a connecting head is fixedly connected to the telescopic rod of the second electric telescopic rod, the connecting head is rotationally connected with the telescopic frame, two strip-shaped shafts are fixedly connected to the telescopic frame, two guide openings are formed in the rotating mounting frame, and the two guide openings are matched with the two strip-shaped shafts respectively.

[0008] Preferably, an outwardly expanded rotating groove is arranged in each of the two guide openings, and the two outwardly expanded rotating grooves are matched with the two strip-shaped shafts respectively, the connecting head is fixedly connected with a through pin, two circular grooves are formed in the telescopic frame, and the two ends of the through pin are rotationally connected in the two circular grooves respectively.

[0009] Preferably, the middle coupling assembly comprises a bottom connecting seat and a top connecting seat, the bottom connecting seat is rotationally connected with the telescopic frame, the follow-up parallel rod and the auxiliary parallel rod are rotationally connected with the top connecting seat, the bottom connecting seat and the top connecting seat are rotationally connected, a first servo motor and a third electric telescopic rod are installed outside the bottom connecting seat, the first servo motor is used for driving rotation of the top connecting seat relative to the bottom connecting seat, and the third electric telescopic rod is used for driving rotation of the telescopic frame relative to the bottom connecting seat and driving rotation of the follow-up parallel rod relative to the top connecting seat.

[0010] Preferably, a synchronous frame is installed on the telescopic rod of the third electric telescopic rod, the synchronous frame is connected with a bottom driving frame and a force transmission frame, the force transmission frame is in sliding fit with the bottom connecting seat, the force transmission frame is rotationally connected with a top driving frame, the top driving frame and the bottom driving frame are in sliding fit with the top connecting seat and the bottom connecting seat respectively, the top driving frame and the bottom driving frame are both rotationally connected with force transmission rods, and the two force transmission rods are in sliding connection with the telescopic frame and the follow-up parallel rod respectively.

[0011] Preferably, the second electric telescopic rod is externally fixed with a hinged sleeve, the first ear support shaft and the second ear support shaft are externally fixedly connected to the hinged sleeve, the first plug-in hole and the second plug-in hole are formed in the rotating mounting frame, the first ear support shaft and the second ear support shaft are rotatably connected to the first plug-in hole and the second plug-in hole respectively, the insertion fixing sleeve is externally fixedly connected to the synchronous frame, the telescopic rod of the third electric telescopic rod is inserted into the synchronous frame, the compression bolt is threadedly connected to the insertion fixing sleeve, and the positioning groove matched with the compression bolt is arranged on the telescopic rod of the third electric telescopic rod.

[0012] Preferably, the output shaft of the first servo motor is provided with a driving gear, and the top connecting seat is externally provided with a gear ring, and the driving gear is engaged with the gear ring.

[0013] Preferably, the bottom connecting seat is provided with two combined protective covers, and the two combined protective covers are used for protecting the engagement transmission between the driving gear and the gear ring.

[0014] Preferably, the support seat is fixedly connected with a protective baffle, the protective baffle is provided with an entrance, the protective baffle is rotatably connected with an opening and closing door, and the opening and closing door is provided with a plurality of auxiliary operation slots.

[0015] Preferably, the protective baffle is externally fixedly connected with a bearing limiting frame and a rotating support block, the bearing limiting frame is used for auxiliary limiting after the opening and closing door is closed, and the rotating support block is used for auxiliary limiting after the opening and closing door is opened.

[0016] Compared with the prior art, the present application provides a lifting working platform, which has the following advantages:

[0017] (1) In the present application, the support seat is provided with a support installation structure through the design of the operation platform, and the height of the support seat can be changed through the operation of the operation platform, so that a standing platform at different heights can be provided for the operator, which is more practical.

[0018] (2) In the present application, the vertical angle and the horizontal angle between the telescopic frame and the follow-up parallel rod can be adjusted through the design of the middle coupling assembly, so that the relative posture between the telescopic frame and the follow-up parallel rod can be comprehensively adjusted, the application range is wider, and the posture adjustment is more flexible. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0020] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 1 It is a schematic diagram of the local enlarged structure at A in the present application;

[0021] Figure 3 Fig. 9 is a perspective view of the open-close door of the present application in a closed state;

[0022] Figure 4 Fig. 10 is a perspective view of the present application from another angle;

[0023] Figure 5 Fig. 11 is a perspective view of the present application from another angle;

[0024] Figure 6 Fig. 12 is a perspective view of the present application from another angle;

[0025] Figure 7 Fig. 13 is a perspective view of the present application from another angle;

[0026] Figure 8 Fig. 14 is a perspective view of the present application from another angle;

[0027] Figure 9 Fig. 15 is a perspective view of the present application from another angle;

[0028] Figure 10 Fig. 16 is a perspective view of the present application from another angle;

[0029] Figure 11 Fig. 17 is a perspective view of the present application from another angle;

[0030] Figure 12 Fig. 18 is a perspective view of the present application from another angle;

[0031] Figure 13 Fig. 19 is a perspective view of the present application from another angle; Figure 12 Fig. 20 is an enlarged view of the portion C in Fig. 19;

[0032] Figure 14 Fig. 21 is a perspective view of the present application from another angle;

[0033] Figure 15 Fig. 22 is a perspective view of the present application from another angle;

[0034] Figure 16 Fig. 23 is a perspective view of the present application from another angle;

[0035] Figure 17The exploded partial sectional perspective structural schematic view of the cooperation of the bottom driving frame, the force transmission frame and the top driving frame of the application;

[0036] Figure 18 The perspective structural schematic view of the whole body of the application relative to the working position forming a certain elevated posture adjustment.

[0037] In the figure: 1, support seat; 2, bottom frame; 3, compression bolt; 4, insertion fixing sleeve; 5, rotary mounting frame; 6, first electric telescopic rod; 7, telescopic frame; 8, second electric telescopic rod; 9, follow-up parallel rod; 10, auxiliary parallel rod; 11, insertion cavity; 12, strip-shaped opening; 13, side notch; 14, connecting head; 15, strip-shaped shaft; 16, guide port; 17, outwardly expanding rotary groove; 18, through pin; 19, circular groove; 20, bottom connecting seat; 21, top connecting seat; 22, first servo motor; 23, third electric telescopic rod; 24, synchronous frame; 25, bottom driving frame; 26, force transmission frame; 27, top driving frame; 28, force transmission rod; 29, first ear support shaft; 30, second ear support shaft; 31, first insertion hole; 32, second insertion hole; 33, driving gear; 34, gear ring; 35, combined protective cover; 36, protective blocking frame; 37, opening and closing door; 38, auxiliary operation strip port; 39, receiving limiting frame; 40, rotary support block; 41, hinged sleeve. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the application.

[0039] Embodiment, please refer to Figures 1-18The utility model provides a kind of lifting working platform, including support seat 1, it further includes operating platform, operating platform includes bottom frame 2, rotating mounting frame 5 is installed on bottom frame 2, first electric telescopic rod 6 is installed in bottom frame 2, the cylinder end of first electric telescopic rod 6 is hinged to the inside of bottom frame 2, telescopic rod end is hinged to the bottom of rotating mounting frame 5, rotating mounting frame 5 is formed around the hinge point of bottom frame 2 by the telescopic of telescopic rod to facilitate the rotation of rotating mounting frame 5 relative to bottom frame 2 to be adjusted, i.e. first electric telescopic rod 6 is used for the rotation drive of rotating mounting frame 5 relative to bottom frame 2, telescopic frame 7 and second electric telescopic rod 8 are installed in rotating mounting frame 5, rotating mounting frame 5 is provided with the insertion cavity 11 matched with telescopic frame 7, strip-shaped opening 12 is opened in the side of rotating mounting frame 5, strip-shaped opening 12 is communicated with insertion cavity 11, the side notch 13 matched with second electric telescopic rod 8 is opened in telescopic frame 7, second electric telescopic rod 8 is installed in insertion cavity 11, connecting head 14 is fixedly connected on the telescopic rod of second electric telescopic rod 8, connecting head 14 is rotatably connected with telescopic frame 7, two strip-shaped shafts 15 are fixedly connected on telescopic frame 7, two guide ports 16 are opened in rotating mounting frame 5, two guide ports 16 are matched with two strip-shaped shafts 15 respectively, hinged sleeve 41 is fixedly connected outside second electric telescopic rod 8, first ear support shaft 29 and second ear support shaft 30 are fixedly connected outside hinged sleeve 41, first insertion hole 31 and second insertion hole 32 are opened in rotating mounting frame 5, first ear support shaft 29 and second ear support shaft 30 are rotatably connected in first insertion hole 31 and second insertion hole 32 respectively, insertion fixed sleeve 4 is fixedly connected outside synchronous frame 24, the telescopic rod of third electric telescopic rod 23 is inserted into synchronous frame 24, compression bolt 3 is screw-connected on insertion fixed sleeve 4, positioning groove matched with compression bolt 3 is arranged on the telescopic rod of third electric telescopic rod 23, second electric telescopic rod 8 is used for the movement drive of telescopic frame 7 relative to rotating mounting frame 5, the expansion rotary groove 17 is arranged in two guide ports 16 respectively, two expansion rotary grooves 17 are matched with two strip-shaped shafts 15 respectively, through pin 18 is fixedly connected with connecting head 14, two circular grooves 19 are opened in telescopic frame 7, two ends of through pin 18 are rotatably connected in two circular grooves 19 respectively.

[0040] It also needs to be further explained that the telescopic frame 7 is provided with a middle coupling assembly, the middle coupling assembly is provided with a follow-up parallel rod 9 and an auxiliary parallel rod 10, the follow-up parallel rod 9 and the auxiliary parallel rod 10 are connected with the support base 1, the follow-up parallel rod 9 and the auxiliary parallel rod 10 are distributed in parallel, the follow-up parallel rod 9 is a main bearing rod, and the auxiliary parallel rod 10 is used to enhance the horizontal stability of the support base 1, so as to avoid the inclination of the support base 1 in the overhanging state, the design of the operation platform provides a supporting and mounting structure for the support base 1, and the operation of the operation platform can realize the height change of the support base 1, so as to provide a standing platform with different heights for the operator, which is more practical, the middle coupling assembly comprises a bottom connecting seat 20 and a top connecting seat 21, the bottom connecting seat 20 is rotatably connected with the telescopic frame 7, the follow-up parallel rod 9 and the auxiliary parallel rod 10 are rotatably connected with the top connecting seat 21, and the bottom connecting seat 20 and the top connecting seat 21 are rotatably connected with each other, a first servo motor 22 and a third electric telescopic rod 23 are mounted outside the bottom connecting seat 20, a driving gear 33 is mounted on an output shaft of the first servo motor 22, a gear ring 34 is mounted outside the top connecting seat 21, the driving gear 33 is engaged with the gear ring 34, two combined protective covers 35 are mounted on the bottom connecting seat 20, the two combined protective covers 35 are spliced to completely cover the meshing area of the driving gear 33 and the gear ring 34, and the two combined protective covers 35 jointly realize protection of the meshing transmission between the driving gear 33 and the gear ring 34, the first servo motor 22 is used for driving the rotation of the top connecting seat 21 relative to the bottom connecting seat 20, the third electric telescopic rod 23 is used for driving the rotation of the telescopic frame 7 relative to the bottom connecting seat 20, and the third electric telescopic rod 23 is also used for driving the rotation of the follow-up parallel rod 9 relative to the top connecting seat 21, a synchronous frame 24 is mounted on the telescopic rod of the third electric telescopic rod 23, the synchronous frame 24 is connected with a bottom driving frame 25 and a force transmission frame 26, the force transmission frame 26 is in sliding fit with the bottom connecting seat 20, the force transmission frame 26 is rotatably connected with a top driving frame 27, the top driving frame 27 and the bottom driving frame 25 are in sliding fit with the top connecting seat 21 and the bottom connecting seat 20 respectively, the top driving frame 27 and the bottom driving frame 25 are both rotatably connected with a force transmission rod 28, and the two force transmission rods 28 are slidably connected with the telescopic frame 7 and the follow-up parallel rod 9 respectively, through the design of the middle coupling assembly, the adjustment of the included angle in the vertical direction and the included angle in the horizontal direction between the telescopic frame 7 and the follow-up parallel rod 9 can be realized, the comprehensive adjustment of the relative posture between the telescopic frame 7 and the follow-up parallel rod 9 is facilitated, the application range is wider, and the posture adjustment is more flexible, a protective baffle 36 is fixedly connected to the support base 1, an entrance is arranged on the protective baffle 36, an opening and closing door 37 is rotatably connected to the protective baffle 36, a plurality of auxiliary operation slots 38 are formed in the opening and closing door 37, and after the operator puts his hand into the auxiliary operation slot 38, auxiliary force can be applied to the rotation of the opening and closing door 37, a receiving limiting frame 39 and a rotating support block 40 are fixedly connected outside the protective baffle 36, the receiving limiting frame 39 is used for auxiliary limiting after the opening and closing door 37 is closed,The rotating support block 40 is used for auxiliary limiting after the opening of the opening and closing door 37.

[0041] The central controller, the first electric telescopic rod 6, the second electric telescopic rod 8, the first servo motor 22 and the third electric telescopic rod 23 in the embodiment are all conventional devices known to those skilled in the art and can be purchased on the market, and the application only uses them without improving their structures and functions. The setting mode, installation mode and electrical connection mode can be understood by those skilled in the art as long as they are debugged according to the requirements of the instruction manual, and thus will not be described here.

[0042] In summary, the working process of the lifting work platform is as follows: before use, first, the first electric telescopic rod 6, the second electric telescopic rod 8, the first servo motor 22 and the third electric telescopic rod 23 are installed with a power supply, and the central controller is installed. The operation of the central controller can realize the matching operation control of the first electric telescopic rod 6, the second electric telescopic rod 8, the first servo motor 22 and the third electric telescopic rod 23, thereby realizing the height adjustment and control of the support seat 1, moving the lifting work platform relative to the work position. The bottom frame 2 is equipped with two power wheels and two steering wheels, the power wheels are used to provide moving power, and the steering wheels are used to adjust the moving direction to realize the flexible displacement of the whole working platform. The power output of the two power wheels can realize the movement of the bottom frame 2, and the steering angle of the two steering wheels can realize the steering during the movement of the bottom frame 2, thereby realizing the overall position movement of the lifting work platform. After the bottom frame 2 is adjusted to the appropriate position relative to the work position, the two power wheels and the two steering wheels are stopped to realize the auxiliary positioning of the bottom frame 2, that is, the bottom frame 2 is equipped with a brake function to ensure the relative position control of the bottom frame 2 relative to the ground in a stationary state. After the position adjustment of the bottom frame 2 is completed, the position adjustment and control of the support seat 1 relative to the bottom frame 2 are realized to align the support seat 1 relative to the work position. The electric operation of the first electric telescopic rod 6 can realize the rotation of the rotating mounting frame 5 relative to the bottom frame 2. The electric operation of the second electric telescopic rod 8 can realize the movement driving and control of the telescopic frame 7 relative to the rotating mounting frame 5. When the telescopic frame 7 moves out to the limit position relative to the rotating mounting frame 5, the strip-shaped shaft 15 will move into the outer expansion rotating groove 17 from the guide hole 16. Thereafter, when the second electric telescopic rod 8 continues to push the telescopic frame 7, the telescopic frame 7 will be adjusted relative to the rotating mounting frame 5. In this process, the strip-shaped shaft 15 rotates relatively in the outer expansion rotating groove 17, that is, enters the posture as shown in the accompanying drawings. Figure 12

[0043] ​After the telescopic frame 7 is rotated relative to the rotary mounting frame 5, the overhanging support structure formed by the rotary mounting frame 5 and the telescopic frame 7 together can be fitted relative to the work position to enrich the position adjustment of the support base 1 relative to the work position, and when the work position is surrounded by other equipment and the bottom frame 2 cannot enter, the support base 1 can also be conveniently suspended and turned to cut in relative to the work position, which is more practical, as shown in the accompanying Figure 18 The high prism is the work target, and the cylinder and the two low prisms are obstacles that prevent the bottom frame 2 from entering. The third electric telescopic rod 23 is powered on to drive the movement of the synchronous frame 24. The movement of the synchronous frame 24 can achieve the relative synchronous approach or relative synchronous departure adjustment of the bottom drive frame 25 and the force transmission frame 26. The movement of the force transmission frame 26 drives the top drive frame 27 to change its height. Therefore, during the operation of the third electric telescopic rod 23, the relative synchronous approach or relative synchronous departure adjustment of the top drive frame 27 and the bottom drive frame 25 can be achieved. Under the transmission of the two force transmission rods 28, when the top drive frame 27 and the bottom drive frame 25 move away from each other, the angle between the telescopic frame 7 and the follow-up parallel rod 9 can be reduced, thereby reducing the height of the support base 1. Conversely, when the top drive frame 27 and the bottom drive frame 25 move closer to each other, the angle between the telescopic frame 7 and the follow-up parallel rod 9 can be increased, thereby increasing the height of the support base 1. When the first servo motor 22 is powered on, the relative rotation adjustment of the top connecting seat 21 relative to the bottom connecting seat 20 can be achieved through the meshing transmission of the corresponding drive gear 33 and the gear ring 34, so as to facilitate the adjustment and rotation of the follow-up parallel rod 9 and the auxiliary parallel rod 10 to the position shown in the accompanying Figure 17In the shown state, the follow-up parallel rod 9 and the auxiliary parallel rod 10 can cooperate with the telescopic support 7 to extend the suspension length and further expand the contact and surrounding range of the support base 1 relative to the working position, thereby improving the practicability of the device as a whole. During the aforementioned adjustment process, since the transmission frame 26 and the top driving frame 27 are provided with a rotation freedom, and the rotation axis between the transmission frame 26 and the top driving frame 27 coincides with the rotation axis between the top driving frame 27 and the bottom driving frame 25, during the process of the first servo motor 22 adjusting the relative position between the top connecting seat 21 and the bottom connecting seat 20, the third electric telescopic rod 23 can still realize the synchronous relative motion driving of the top driving frame 27 and the bottom driving frame 25. In order to ensure the posture stability of the support base 1, the first electric telescopic rod 6 should be synchronously matched with the third electric telescopic rod 23, and then the adjustment of the included angle between the rotary mounting frame 5 and the bottom vehicle frame 2 and the included angle between the follow-up parallel rod 9 and the telescopic support 7 is realized. After the adjustment is completed, the height adjustment of the support base 1 is realized through the matched operation of the first electric telescopic rod 6, the second electric telescopic rod 8, the third electric telescopic rod 23 and the first servo motor 22, thereby expanding the height adjustment range of the support base 1. Considering the suspension posture of the support base 1 and the weight carried on the support base 1, when the weight of the external object carried on the support base 1 is heavy or the suspension length of the support base 1 is long, the bottom vehicle frame 2 should be appropriately added with a counterweight measure to avoid the bottom vehicle frame 2 from falling, thereby improving the operation safety of the lifting working platform.

[0044] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A lifting work platform comprising a support base (1), characterised in that, Also include operation platform, operation platform include bottom frame (2), the bottom frame (2) on the installation of rotary mounting frame (5), bottom frame (2) inside installation first electric telescopic rod (6), the first electric telescopic rod (6) is used for the rotary drive of rotary mounting frame (5) relative to bottom frame (2), rotary mounting frame (5) inside installation telescopic frame (7) and second electric telescopic rod (8), the second electric telescopic rod (8) is used for the movement drive of telescopic frame (7) relative to rotary mounting frame (5), the telescopic frame (7) on installation middle coupling assembly, the middle coupling assembly on installation follow-up parallel rod (9) and auxiliary parallel rod (10), the follow-up parallel rod (9) and auxiliary parallel rod (10) are connected with the support seat (1); The middle coupling assembly includes bottom connecting seat (20) and top connecting seat (21), the bottom connecting seat (20) is rotatably connected with the telescopic frame (7), the follow-up parallel rod (9) and auxiliary parallel rod (10) are rotatably connected with the top connecting seat (21), the bottom connecting seat (20) and top connecting seat (21) are rotatably connected, the first servo motor (22) and third electric telescopic rod (23) are installed outside the bottom connecting seat (20), the first servo motor (22) is used for the rotary drive of the top connecting seat (21) relative to the bottom connecting seat (20), the third electric telescopic rod (23) is used for the rotary drive of telescopic frame (7) relative to the bottom connecting seat (20), the third electric telescopic rod (23) is also used for the rotary drive of follow-up parallel rod (9) relative to top connecting seat (21), the telescopic rod of third electric telescopic rod (23) is installed with synchronous frame (24), the synchronous frame (24) is connected with bottom drive frame (25) and force transmission frame (26), the force transmission frame (26) is in sliding fit with the bottom connecting seat (20), the force transmission frame (26) is rotatably connected with top drive frame (27), the top drive frame (27) and bottom drive frame (25) are in sliding fit with the top connecting seat (21) and bottom connecting seat (20) respectively, the top drive frame (27) and bottom drive frame (25) are rotatably connected with force transmission rod (28), two force transmission rods (28) are in sliding connection with the telescopic frame (7) and follow-up parallel rod (9) respectively.

2. A platform as claimed in claim 1, wherein The rotating mounting frame (5) is provided with an insertion cavity (11) matched with the telescopic frame (7), a strip-shaped opening (12) is formed on the side surface of the rotating mounting frame (5), the strip-shaped opening (12) is communicated with the insertion cavity (11), an edge notch (13) matched with the second electric telescopic rod (8) is formed on the telescopic frame (7), the second electric telescopic rod (8) is installed in the insertion cavity (11), a connecting head (14) is fixedly connected on the telescopic rod of the second electric telescopic rod (8), the connecting head (14) is rotatably connected with the telescopic frame (7), two strip-shaped shafts (15) are fixedly connected on the telescopic frame (7), two guide openings (16) are formed on the rotating mounting frame (5), and the two guide openings (16) are respectively matched with the two strip-shaped shafts (15).

3. A platform as claimed in claim 2, wherein Two outer expansion rotating grooves (17) are arranged in the two guide openings (16), the two outer expansion rotating grooves (17) are respectively matched with the two strip-shaped shafts (15), the connecting head (14) is fixedly connected with a penetrating pin (18), two circular grooves (19) are formed in the telescopic frame (7), and two ends of the penetrating pin (18) are rotatably connected in the two circular grooves (19) respectively.

4. A platform as claimed in claim 3, wherein The second electric telescopic rod (8) is fixedly sleeved with a hinged sleeve (41), the hinged sleeve (41) is fixedly connected with a first ear support shaft (29) and a second ear support shaft (30) outside, a first insertion hole (31) and a second insertion hole (32) are formed on the rotating mounting frame (5), the first ear support shaft (29) and the second ear support shaft (30) are rotatably connected in the first insertion hole (31) and the second insertion hole (32) respectively, the synchronous frame (24) is fixedly connected with an insertion fixing sleeve (4) outside, the telescopic rod of the third electric telescopic rod (23) is inserted into the synchronous frame (24), a compression bolt (3) is threadedly connected on the insertion fixing sleeve (4), and a positioning groove matched with the compression bolt (3) is arranged on the telescopic rod of the third electric telescopic rod (23).

5. A platform as claimed in claim 4, wherein, A driving gear (33) is installed on the output shaft of the first servo motor (22), a gear ring (34) is installed on the top connecting seat (21) outside, and the driving gear (33) is engaged with the gear ring (34).

6. A platform as claimed in claim 5, wherein, Two combined protective covers (35) are installed on the bottom connecting seat (20), and the two combined protective covers (35) are used for protecting the engagement transmission between the driving gear (33) and the gear ring (34) together.

7. A platform as claimed in claim 6, wherein A protective blocking frame (36) is fixedly connected on the support seat (1), an entrance is arranged on the protective blocking frame (36), an opening and closing door (37) is rotatably connected on the protective blocking frame (36), and a plurality of auxiliary operation slot openings (38) are formed on the opening and closing door (37).

8. A platform as claimed in claim 7, wherein, A bearing limiting frame (39) and a rotating support block (40) are fixedly connected outside the protective blocking frame (36), the bearing limiting frame (39) is used for auxiliary limiting after the opening and closing door (37) is closed, and the rotating support block (40) is used for auxiliary limiting after the opening and closing door (37) is opened.

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