Mobile operation platform

Abstract

The invention relates to the technical field of operation platforms, in particular to a movable operation platform which comprises a movable seat and an operation table arranged on the movable seat in a liftable mode through a scissor connecting rod, and the movable seat, the operation table and the scissor connecting rod are each provided with two or more sets of guide wheels corresponding to one another in the circumferential direction. The moving seat is provided with a driving assembly for synchronously driving the scissor connecting rod and all the guide wheels on the moving seat, each guide wheel on the moving seat is connected with a balance rope, and each balance rope sequentially passes through the operating table and the corresponding guide wheel on the scissor connecting rod and then is fixed to the moving seat. The movable operation platform is simple in structure and ingenious in design, and the three purposes of lifting of the shear fork connecting rod, self-adaptive stability maintaining of the balance rope and balance of the operation platform can be achieved at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of operating platforms, and in particular to a mobile operating platform. Background Art

[0002] The mushroom fruiting management includes operations such as hole expansion and loading and unloading. Mushroom cultivation usually uses plastic bags for cultivation. Before loading, hole expansion operations are required. Factories all use manual hole expansion, which has a high labor intensity; the fruiting rack is a high-rise three-dimensional structure, so high-altitude operations are required. At this time, a lifting operating platform is needed.

[0003] Chinese Patent with the authorization number CN110104595B discloses a tree pruning lift with high safety performance, including a lift main body. At the four corners of the lower end of the lift main body, moving columns are fixedly connected. The other ends of the moving columns are fixedly connected with universal wheels. At the upper end of the lift main body, a belt is fixedly connected through two groups of symmetrically installed protection mechanisms. At the center of the lower end of the lift main body, a positioning mechanism is fixedly connected; the protection mechanism includes a T-shaped chute, a T-shaped slider, a railing, and a connecting rope. This tree pruning lift with high safety performance can solve the problems that the existing lifts have low safety performance, that filling the lift with fences not only affects the entry and exit of the staff but also wastes materials, and that when the lift is parked on the ground alone, due to the lack of an effective positioning mechanism, the lift is prone to move on the ground, thus increasing the safety risk of the staff who are performing pruning operations at high altitude.

[0004] The above lift belongs to a type of lifting operating platform, which is a scissor lift table and can be used for high-altitude operations in various environments. The scissor lift table is a common high-altitude operation platform. However, when the existing scissor lift table extends upward, the whole becomes slender, and the platform's ability to resist bending gradually weakens. If the platform is unevenly stressed, that is, if one side of the platform away from the center is overstressed, it is easy to damage the connection of the scissor frame. If damage occurs and the lifting platform tilts, it will pose a danger to the personal safety of the operators. Summary of the Invention

[0005] The technical problem to be solved by the present invention is: to provide a mobile operating platform with stable lifting.

[0006] To solve the above technical problem, the technical solution adopted by the present invention is: a mobile operating platform, including a mobile base and an operating platform that is liftably arranged on the mobile base through scissor linkages. Two or more groups of corresponding guide wheels are respectively arranged on the mobile base, the operating platform, and the scissor linkages along the circumferential direction. The mobile base is provided with a driving assembly for synchronously driving the scissor linkages and all the guide wheels on the mobile base. Each guide wheel on the mobile base is connected to a balance rope. Each balance rope passes through the corresponding guide wheels on the operating platform and the scissor linkages in sequence and is fixed on the mobile base.

[0007] Furthermore, each set of guide wheels includes a first wire guide wheel, a second wire guide wheel, and a grooved pulley with a shaft. More than two first wire guide wheels are evenly arranged on the scissor link around the vertical center line of the scissor link. More than two second wire guide wheels are evenly arranged on the operating platform around the vertical center line of the scissor link. More than two grooved pulleys with a shaft are evenly arranged on the moving seat around the vertical center line of the scissor link.

[0008] Furthermore, the scissor link is provided with a first slider, and the two first sliders are slidably connected to the operating platform.

[0009] Furthermore, the operating platform is provided with a rotatable middle plate coaxially arranged with the vertical center line of the scissor link. Connecting rods are rotatably connected to both ends of the middle plate, and the connecting rods are rotatably connected to the first sliders.

[0010] Furthermore, the operating platform is provided with a guide groove, and the first slider is slidably connected to the guide groove through a support rod.

[0011] Furthermore, the bottom surface of the operating platform has four end corners, and a guide wheel is arranged at each end corner.

[0012] Furthermore, the moving seat is provided with a double threaded rod. The driving assembly is connected to the middle of the double threaded rod. The scissor link is in threaded cooperation with the double threaded rod. Both ends of the double threaded rod are respectively connected to two guide wheels on the moving seat.

[0013] Furthermore, the scissor link is provided with a second slider, and the two second sliders are in threaded cooperation with the two threaded parts of the double threaded rod respectively.

[0014] Furthermore, the double threaded rod is connected to the guide wheel through a gear transmission assembly and a universal shaft in sequence.

[0015] Furthermore, the scissor link is provided with an intermediate rod, and the intermediate rod is provided with a perforation for the balance rope to pass through.

[0016] The beneficial effects of the present invention are as follows: For a mobile operation platform, during the process of the driving component driving the scissor link to control the operation platform to rise, multiple balance ropes simultaneously apply tensile forces to multiple points of the operation platform to keep the operation platform stable; when one side of the operation platform is overweight, the tensile force of the balance rope on the other side will automatically increase to achieve the purpose of self-adaptive balance, thereby reducing the bending force on the scissor link and making it not easy for the connection of the scissor link to be damaged, solving the problem of the operation platform tilting due to unilateral overweight. Multiple sets of guide wheels are provided on the moving seat, the operation platform and the scissor link. Through the coordinated cooperation between multiple sets of guide wheels, the balance rope is guided through the scissor link and fixed on the moving seat, making the balance rope in a taut state and the scissor link as a whole tend to be straightened, thereby further improving the ability of the scissor link to resist bending. The overall structure of the device is simple. Through the driving component, three purposes of lifting the scissor link, self-adaptive stability maintenance of the balance rope, and balance of the operation platform can be achieved simultaneously, without the need to additionally set up a storage winding structure, motor, etc. to balance the operation platform, saving costs and having strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the whole of the present invention from the first perspective; Figure 2 is a schematic structural view of the whole of the present invention from the second perspective; Figure 3 is a schematic structural view of the whole of the present invention from the third perspective; Figure 4 is Figure 3 an enlarged structural view of part A of Figure 5 is a three-dimensional structural view of the operation platform of the present invention; Figure 6 is a schematic structural view of the interior of the bottom shell of the present invention; Figure 7 is Figure 6 an enlarged structural view of part B of Figure 8 is Figure 6 an enlarged structural view of part C of Reference Numeral Description: 1. Bottom shell; 2. Trolley; 3. Scissor link; 4. Steel rope; 5. First wire pulley; 6. Operating platform; 7. Guardrail; 8. Control console; 9. Support frame; 10. Intermediate rod; 11. Concave block; 12. Second wire pulley; 13. Side support plate; 14. Support rod; 15. Intermediate plate; 16. Connecting rod; 17. First fixing plate; 18. First slider; 19. First guide rod; 20. Guide groove; 21. Servo motor; 22. Second guide rod; 23. Second slider; 24. Nut sleeve; 25. Double threaded rod; 26. Worm; 27. Worm gear; 28. First bearing seat; 29. Second bearing seat; 30. Second fixing plate; 31. Transmission rod; 32. Third bearing seat; 33. Main bevel gear; 34. Sub bevel gear; 35. Universal shaft; 36. Fourth bearing seat; 37. Grooved pulley with shaft. Detailed implementation manner

[0018] To describe in detail the technical content, achieved purpose and effects of the present invention, the following is described in conjunction with the implementation manners and with reference to the accompanying drawings.

[0019] As Figures 1 to 8 shown, an embodiment of the present invention provides a mobile operation platform, including a mobile base, an operating platform 6 and a scissor link 3. The mobile base includes a bottom shell 1 and a trolley 2; The operating platform 6 is arranged above the bottom shell 1, and the scissor link 3 is located between the bottom shell 1 and the operating platform; The trolley 2 is fixedly installed at the bottom of the bottom shell 1. The trolley 2 is an AVG trolley, which is a prior art, and its specific structure and working principle will not be elaborated in detail here; Both of the two link rods at the top of the scissor link 3 are rotatably sleeved with first sliders 18, and a centering mechanism for assisting the two first sliders 18 to perform centering movement is arranged at the bottom of the operating platform 6; Both of the two link rods at the bottom of the scissor link 3 are rotatably sleeved with second sliders 23. A double threaded rod 25 is arranged inside the bottom shell 1. Both ends of the double threaded rod 25 are rotatably sleeved with second bearing seats 29 fixed to the bottom shell 1. Both ends of the double threaded rod 25 are sleeved with nut sleeves 24 adapted to it, and the two nut sleeves 24 are respectively fixed to the two second sliders 23; A driving assembly for rotating the double threaded rod 25 is arranged inside the bottom shell 1; A pair of fourth bearing seats 36 are fixed at the four corners inside the bottom shell 1, and each pair of fourth bearing seats 36 rotatably mounts a grooved pulley with shaft 37. A rotating mechanism for synchronously rotating the shaft of the grooved pulley with shaft 37 and the double threaded rod 25 is arranged therebetween; A balance rope is arranged in the groove of the grooved pulley 37 with a shaft. The balance rope can be a steel rope 4. One end of the steel rope 4 is fixed to the grooved pulley, and the other end of the steel rope 4 is fixed at the middle position of the top of the bottom shell 1. A pair of support frames 9 are fixed at the four corners of the bottom of the operating platform 6. A first wire pulley 5 is rotatably installed on each pair of support frames 9, and each steel rope 4 is sleeved on the adjacent first wire pulley 5. As can be seen from the above description: When the double threaded rod 25 rotates, the nut sleeves 24 at both ends of the double threaded rod 25 move synchronously and in opposite directions along the double threaded rod 25 in a threaded transmission form. When the two nut sleeves 24 move relatively closer, the two nut sleeves 24 respectively drive the first sliders 18 to move relatively closer. The two first sliders 18 make the two bottom connecting rods of the scissors link 3 approach each other, and the scissors link 3 extends to lift the operating platform 6. Since there is a rotating mechanism between the axle of the grooved pulley 37 with a shaft and the double threaded rod 25 to make the two rotate synchronously, the grooved pulley 37 with a shaft pays out the wire.

[0020] Specifically, as shown in the atta Figure 5 ched drawings, the centering mechanism includes an intermediate plate 15 and two connecting rods 16. The middle position of the intermediate plate 15 is rotatably installed at the middle position of the bottom of the operating platform 6. One ends of the two connecting rods 16 are respectively rotatably installed at both ends of the two intermediate plates 15, and the other ends of the two connecting rods 16 are respectively rotatably installed at the middle positions of the tops of the first sliders 18. The two connecting rods 16 are centrosymmetric; when the scissors link 3 extends, the two top connecting rods of the scissors link 3 approach each other, the first sliders 18 on the two connecting rods approach each other, and the first sliders 18 make the intermediate plate 15 rotate through the connecting rods 16, so that the two first sliders 18 can stably complete the centering movement and at the same time ensure that the two first sliders 18 can be stably in the middle area of the operating platform 6.

[0021] Specifically, as shown in the atta Figure 5 ched drawings, first fixing plates 17 are fixed at both ends of the bottom of the operating platform 6. A plurality of first guide rods 19 are commonly fixed on the opposite sides of the two first fixing plates 17. The two first sliders 18 are both slidably sleeved on each first guide rod 19; The first guide rods 19 are provided to enable the first sliders 18 to only move linearly relative to the operating platform 6.

[0022] Specifically, as shown in the atta Figure 6 ched drawings, second fixing plates 30 are fixed at both ends of the top of the bottom shell 1. A plurality of second guide rods 22 are commonly fixed on the opposite sides of the two second fixing plates 30. The two second sliders 23 are both slidably sleeved on each second guide rod 22; The second guide rods 22 are provided to enable the second sliders 23 to only move linearly relative to the bottom shell 1.

[0023] Specifically, as shown in the atta Figure 6 ched drawings and attaFigure 7 and the attached Figure 8 As shown, the driving assembly includes a servo motor 21, a worm 26, and a worm gear 27. Both ends of the worm 26 are rotatably sleeved with first bearing seats 28 fixed to the bottom shell 1. The worm gear 27 is coaxially fixed to the double threaded rod 25, and the worm gear 27 meshes with the worm 26. The servo motor 21 is fixed to the bottom shell 1, and the output shaft of the servo motor 21 is coaxially fixed to the worm 26. The servo motor 21 rotates the worm 26 through the output shaft, and the worm 26 rotates the double threaded rod 25 through the meshing worm gear 27.

[0024] Specifically, in combination with the attached Figure 6 and the attached Figure 8 As shown, the rotating mechanism includes a transmission rod 31. Both outer sides of the two ends of the transmission rod 31 are rotatably sleeved with third bearing seats 32 fixed to the bottom shell 1. A transmission structure for synchronously rotating the two is provided between the transmission rod 31 and the double threaded rod 25. A universal shaft 35 is commonly fixed to the two adjacent belt pulley wheels 37 at the two ends of the transmission rod 31 respectively. The transmission structure includes a main bevel gear 33 and a sub bevel gear 34. The main bevel gear 33 is coaxially fixed to the double threaded rod 25, and the sub bevel gear 34 is coaxially fixed to the transmission rod 31, and the main bevel gear 33 meshes with the sub bevel gear 34. When the double threaded rod 25 rotates, the main bevel gear 33 coaxially fixed to the double threaded rod 25 rotates synchronously. The main bevel gear 33 drives the transmission rod 31 to rotate through the meshing sub bevel gear 34, and the transmission rod 31 drives the belt pulley wheel 37 to rotate through the universal shaft 35.

[0025] Specifically, in combination with the attached Figure 3 and the attached Figure 4 As shown, the middle part of the middle rod 10 of the scissor link 3 is flat. Four through holes are provided in the middle rod 10 of the scissor link 3. Four steel ropes 4 respectively pass through the through holes. Four concave blocks 11 are fixed to the top middle rod 10 of the scissor link 3. A second wire pulley 12 is rotatably installed in the concave block 11 of the concave block 11. The four steel ropes 4 are respectively sleeved on the four second wire pulleys 12. The second wire pulley 12 is used to guide the direction of the steel rope 4, that is, to make the steel rope 4 vertically pass through the through hole. Since the steel rope 4 is in a taut state, the whole scissor link 3 tends to be in a straight state, thereby further improving the bending resistance ability of the scissor link 3.

[0026] Specifically, in combination with the attached Figure 3 and the attached Figure 5As shown, support rods 14 coaxial with it are fixed at both ends of the top two link rods of the scissors link 3. Side support plates 13 are fixed on both sides of the bottom of the operating platform 6. Guide grooves 20 are formed on the outer sides of both ends of the two side support plates 13. One ends of the four support rods 14 are respectively slidably arranged in the four guide grooves 20. The cooperation between the support rods 14 and the guide grooves 20 improves the stability of the first slider 18 during movement. At the same time, the support rods 14 provide an upward support force through the side support plates 13.

[0027] Specifically, in combination with the attached Figure 1 - attached Figure 3 As shown, a guardrail 7 is fixed on the tabletop of the operating platform 6. The guardrail 7 is provided to provide a support point for the worker. One side of the guardrail 7 is not closed. A control console 8 is fixed on the crossbar of the guardrail 7. A control panel is fixed on the outer shell of the control console 8. A controller is fixedly installed inside the control console 8. The controller is a prior art and its specific structure and working principle will not be elaborated in detail here. Supplementary explanation is made here. The controller is electrically connected to each of the above-mentioned electrical components.

[0028] For supplementary explanation of the above, after the entire operating platform is installed, the steel rope 4 is pre-tightened so that the steel rope 4 remains in a tense state.

[0029] Working principle: The worker stands on the operating platform 6 and then operates the control console 8; the entire operating platform moves through the trolley 2; after moving to the designated position, the control console 8 starts the servo motor 21. The servo motor 21 rotates the worm 26 through the output shaft. The worm 26 rotates the double threaded rod 25 through the engaged worm gear 27. When the double threaded rod 25 rotates, the nut sleeves 24 at both ends of the double threaded rod 25 move synchronously and in opposite directions along the double threaded rod 25 in a thread transmission form. When the two nut sleeves 24 move relatively closer, the two nut sleeves 24 respectively drive the first sliders 18 to move relatively closer. The two first sliders 18 make the bottom two link rods of the scissors link 3 approach each other, and the scissors link 3 extends to lift the operating platform 6. When the double threaded rod 25 rotates, the main bevel gear 33 fixedly coaxial with the double threaded rod 25 rotates synchronously. The main bevel gear 33 drives the transmission rod 31 to rotate through the driven bevel gear 34 meshing with it. The transmission rod 31 drives the belt shaft pulley 37 to rotate through the universal shaft 35, and the belt shaft pulley 37 pays out the wire rope; during the rising process of the operating platform 6, the wire rope 4 constantly exerts a pulling force on the four corners of the operating platform 6. When one side of the operating platform 6 is overweight, the pulling force of the wire rope 4 on the other side increases accordingly, reducing the bending force on the scissor link 3, so that the connection of the scissor link 3 is not easily damaged, improving the safety of the working environment; since the wire rope 4 is guided through the middle rod 10 of the scissor link 3 and fixed to the bottom shell 1, and the wire rope 4 is in a taut state, the whole scissor link 3 tends to be in a straight state, thus further improving the bending resistance ability of the scissor link 3.

[0030] The lift-controlled mobile operating platform of the present invention has the following advantages: Firstly: The present invention is provided with four belt shaft pulleys and four wire ropes. The four wire ropes are respectively connected to the four belt shaft pulleys one by one, and the four wire ropes are distributed at the four corners of the bottom of the operating platform. During the rising process of the operating platform, the wire ropes constantly exert a pulling force on the four corners of the operating platform to keep the operating platform stable; when one side of the operating platform is overweight, the pulling force of the wire rope on the other side will automatically increase, achieving the purpose of self-adaptive balance, so that the bending force on the scissor link is reduced, and the connection of the scissor link is not easily damaged, solving the problem of the operating platform tilting due to unilateral overweight.

[0031] Secondly: The wire rope of the present invention is guided by the first guide pulley and the second guide pulley, so that the wire rope is guided through the middle rod of the scissor link and fixed to the bottom shell. Since the wire rope is in a taut state, the whole scissor link tends to be in a straight state, thus further improving the bending resistance ability of the scissor link.

[0032] Thirdly, the present invention can not only straighten the outside, but also strengthen the scissor link. The wire rope layout is introduced from one end of the operating platform into the middle rod of the scissor link. As the operating platform rises, the angle of the upper part of the wire rope changes, and the contact area between the wire rope and the second guide pulley increases, reducing the excessive local stress and improving the service life of the wire rope.

[0033] Fourthly: The structure of the present invention is simple. Only a single motor can simultaneously complete the three processes of lifting the scissor link, self-adaptive stability maintenance of the wire rope, and balance of the operating platform, without additionally setting a storage winding structure, motor, etc. to balance the operating platform.

[0034] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in the related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A mobile operating platform, comprising a mobile seat and an operating table arranged on the mobile seat and capable of being raised and lowered by a scissor-type connecting rod, characterized in that: The moving seat, the operating table and the scissor-type connecting rod are respectively provided with more than two groups of guide wheels corresponding to each other along the circumferential direction. The moving seat is provided with a driving assembly for synchronously driving the scissor-type connecting rod and all the guide wheels on the moving seat. Each guide wheel on the moving seat is connected to a balance rope, and each balance rope passes through the corresponding guide wheels on the operating table and the scissor-type connecting rod in turn and is fixed on the moving seat.

2. The mobile operating platform according to claim 1, characterized in that: Each set of guide wheels includes a first guide wheel, a second guide wheel and a shaft groove wheel. More than two first guide wheels are evenly arranged on the scissors-type connecting rod around the vertical center line of the scissors-type connecting rod, more than two second guide wheels are evenly arranged on the operating table around the vertical center line of the scissors-type connecting rod, and more than two shaft groove wheels are evenly arranged on the moving seat around the vertical center line of the scissors-type connecting rod.

3. The mobile operating platform according to claim 1, characterized in that: The scissor-type connecting rod is provided with a first sliding block, and two first sliding blocks are slidably connected with the operating table.

4. The mobile operating platform according to claim 3, characterized in that: The operating table is provided with a rotatable middle plate which is coaxially arranged with the vertical center line of the scissor-type connecting rod. Both ends of the middle plate are rotatably connected with connecting rods, and the connecting rods are rotatably connected with the first sliding block.

5. The mobile operating platform according to claim 3, characterized in that: The operating table is provided with a guide groove, and the first sliding block is slidably connected with the guide groove through a supporting rod.

6. The mobile operating platform according to claim 1, characterized in that: The bottom surface of the operating table has four end corners, and a guide wheel is arranged at each end corner.

7. The mobile operating platform according to claim 6, characterized in that: The moving seat is provided with a double threaded rod, the driving assembly is connected to the middle part of the double threaded rod, the scissor connecting rod is matched with the threads of the double threaded rod, and the two ends of the double threaded rod are respectively connected to the two guide wheels on the moving seat.

8. The mobile operating platform according to claim 7, characterized in that: The scissor-type connecting rod is provided with a second sliding block, and the two second sliding blocks are respectively threadably matched with the two threaded parts of the double-threaded rod.

9. The mobile operating platform according to claim 7, characterized in that: The double threaded rod is connected to the guide wheel through the gear transmission assembly and the universal shaft in turn.

10. The mobile operating platform according to claim 1, characterized in that: The scissor-type connecting rod is provided with a middle rod, and the middle rod is provided with a through hole for the balance rope to pass through.

Images