Support platform for maintenance

Abstract

The present disclosure relates to a kind of overhaul support platform, including frame body, frame body includes operating table;Lifting device is located below operating table, including lifting plate and the drive mechanism connected with lifting plate, lifting plate has first position and second position, in first position, lifting plate is with operating table in the same height along vertical direction;And detection device, is located in frame body, for detecting the inclination angle of frame body;Detection device is connected with drive mechanism, when detection device detects that frame body meets preset angle, drive mechanism drives lifting plate to switch from first position to second position;The height of lifting plate in second position is lower than the height of first position along vertical direction.The overhaul support platform can detect the inclination angle of frame body by detection device when platform occurs to tip, and control lifting plate to drop from first position to second position, reduce the gravity center of overhaul support platform, can reduce the dangerous situation that platform appears to tip, can protect the maintenance personnel.

Description

Technical Field

[0001] This disclosure relates to the field of coal preparation plant maintenance equipment technology, specifically, to a maintenance support platform. Background Technology

[0002] The maintenance tasks in coal preparation plants are generally quite heavy. When maintaining equipment located at higher positions in the coal preparation plant, maintenance personnel need to use support platforms to carry out maintenance operations. However, existing support platforms do not have protective functions. In the event of platform tipping over, they cannot protect the maintenance personnel on the platform, and the overall safety performance of the support platform device is insufficient. Summary of the Invention

[0003] The purpose of this disclosure is to provide a maintenance support platform that can detect the tilt angle of the frame when the platform tilts or falls, and control the lifting plate to descend from a higher first position to a lower second position through a drive mechanism that is communicatively connected to the detection device. This can lower the center of gravity of the maintenance support platform, reduce the danger of further tilting or falling, and protect maintenance personnel, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, this disclosure provides a maintenance support platform, comprising: a frame including an operating platform; a lifting device disposed below the operating platform, including a lifting plate and a drive mechanism connected to the lifting plate, the lifting plate having a first position and a second position, wherein in the first position, the lifting plate and the operating platform are at the same height in the vertical direction; and a detection device disposed on the frame for detecting the tilt angle of the frame; the detection device is communicatively connected to the drive mechanism, and when the detection device detects that the frame meets a preset angle, the drive mechanism drives the lifting plate to switch from the first position to the second position; the height of the lifting plate in the second position in the vertical direction is lower than the height of the first position.

[0005] Optionally, the operating platform is provided with an opening, and the maintenance support platform further includes a protective barrel connected to the opening. The lifting plate is located inside the protective barrel, and the inner wall of the protective barrel is provided with a protective layer.

[0006] Optionally, the driving mechanism includes: a first mounting plate, a second mounting plate, a connector, and a driving assembly, wherein the first mounting plate is provided with a first spherical groove, and / or the second mounting plate is provided with a second spherical groove, and the two ends of the connector are spherically hinged to the first spherical groove and / or the second spherical groove via spherical protrusions; the second mounting plate is fixedly connected to the lifting plate, and the driving assembly is connected to the first mounting plate for driving the first mounting plate to rotate, so as to drive the second mounting plate to move closer to or away from the first mounting plate through the connector.

[0007] Optionally, there are multiple first spherical grooves arranged circumferentially on the first mounting plate, and the number of connectors corresponds one-to-one with the number of first spherical grooves; and / or, there are multiple second spherical grooves arranged circumferentially on the second mounting plate, and the number of connectors corresponds one-to-one with the number of second spherical grooves.

[0008] Optionally, the drive assembly includes: a first drive wheel, coaxially fixedly connected to the second mounting plate via a drive shaft; a second drive wheel, meshing with the first drive wheel; and a first drive motor, connected to the second drive wheel and signal-connected to the detection device.

[0009] Optionally, the drive assembly further includes a locking unit, which is communicatively connected to the detection device and can be unlockably locked to the first drive wheel and / or the second drive wheel.

[0010] Optionally, the locking unit includes: a second drive motor, communicatively connected to the detection device; a lead screw, connected to the output shaft of the second drive motor and rotatable about its own axis; and a locking member, connected to the lead screw, which can lock or unlock to the first transmission wheel as the lead screw rotates.

[0011] Optionally, the locking member includes: a first locking part screwed to the lead screw and capable of reciprocating along the axial direction of the lead screw as the lead screw rotates; and a second locking part connected to the first locking part, wherein the second locking part can move closer to or further away from the first transmission wheel as the first locking part moves, so as to lock or unlock the first transmission wheel.

[0012] Optionally, the lifting plate is provided with a guide portion, and the protective barrel is provided with a guide groove in the vertical direction that cooperates with the guide portion.

[0013] Optionally, the maintenance support platform further includes: a guardrail connected to the operating table; and / or a shielding assembly including a shielding plate and a telescopic rod, the telescopic rod being connected to the operating table and the shielding plate being connected to the end of the telescopic rod away from the operating table; and / or pulleys located at the bottom of the frame.

[0014] Through the above-described technical solution, namely the maintenance support platform provided in this disclosure, under normal maintenance conditions, workers can stand on the lifting platform to perform operations. The lifting platform is at a higher first height. When the maintenance support platform tilts, the maintenance device can detect the tilt angle of the frame. When the detection device detects that the tilt angle of the frame meets the preset angle, it will transmit a signal to the drive mechanism. At this time, the drive mechanism starts to operate, and the drive mechanism moves the lifting platform from the higher first position to the lower second position in the vertical direction. In this way, since the workers are always standing on the lifting platform, the center of gravity of the maintenance support platform will decrease as the lifting platform descends, which can prevent the maintenance support platform from tilting or falling further, thus improving the protection effect for workers and the overall safety performance of the maintenance support platform.

[0015] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a plan view of the maintenance support platform structure provided in the exemplary embodiments of this disclosure;

[0018] Figure 2 yes Figure 1 A magnified view of a portion of position B in the middle;

[0019] Figure 3 yes Figure 1 Top view of position A in the middle;

[0020] Figure 4 This is a bottom view of the maintenance support platform provided in an exemplary embodiment of this disclosure;

[0021] Figure 5 yes Figure 4 A magnified view of the area at position C in the middle;

[0022] Figure 6 This is a schematic diagram of the structure of the right-angled trapezoidal block in the second locking part provided in an exemplary embodiment of this disclosure;

[0023] Figure 7 This is a plan view of the structure of the U-shaped bent plate in the second locking part provided in an exemplary embodiment of this disclosure.

[0024] Explanation of reference numerals in the attached figures

[0025] 1-Frame; 101-Operating table; 102-Opening; 103-Protective barrel; 1031-Guide groove; 2-Lifting device; 201-Lifting plate; 2011-Guide part; 210-Drive mechanism; 211-First mounting plate; 2111-First spherical groove; 212-Second mounting plate; 2121-Second spherical groove; 213-Connector; 2131-Spherical protrusion; 220-Drive assembly; 221-First transmission wheel; 222-Second transmission wheel; 223-First 224-Drive motor; 2241-Second drive motor; 2242-Screw; 2243-Locking component; 22431-First locking part; 22432-Second locking part; 3-Detection device; 4-Guardrail; 5-Blocking assembly; 501-Blocking plate; 502-Telescopic rod; 6-Pulley; 7-Fixed frame; 701-First sliding groove; 702-First protrusion; 703-Rack; 704-Second protrusion; 705-Second sliding groove; 706-U-shaped bending plate. Detailed Implementation

[0026] The specific embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.

[0027] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" refer to the inner and outer contours of the component or structure itself, and terms such as "first" and "second" are used to distinguish one element from another and do not have sequentiality or importance. In addition, the same reference numerals in different reference drawings denote the same element.

[0028] The inventors discovered through research that, in related technologies, the maintenance tasks in coal preparation plants are generally quite heavy. When maintaining equipment located at a high position in the coal preparation plant, maintenance personnel need to use a support platform to carry out maintenance operations. However, the support platforms in the existing technology do not have protective functions. In the event of a platform tipping over, they cannot protect the maintenance personnel on the platform, and the overall safety performance of the support platform device is insufficient.

[0029] Based on this, this disclosure provides a maintenance support platform, for reference Figures 1 to 7As shown, the maintenance support platform includes a frame 1, a lifting device 2, and a detection device 3. The frame 1 includes an operating platform 101. The lifting device 2 is located below the operating platform 101 and includes a lifting plate 201 and a drive mechanism 210 connected to the lifting plate 201. The lifting plate 201 and the operating platform 101 are at the same height in the vertical direction. The detection device 3 is located on the frame 1 and is used to detect the tilt angle of the frame 1. The detection device 3 is communicatively connected to the drive mechanism 210. When the detection device 3 detects that the frame 1 meets a preset angle, the drive mechanism 210 drives the lifting plate 201 to switch from a first position to a second position. The height of the lifting plate 201 in the vertical direction in the second position is lower than the height in the first position.

[0030] In this way, under normal maintenance conditions, workers stand on the lifting platform 201 to perform operations. The lifting platform 201 is at a higher first height. When the maintenance support platform tilts, the detection device 3 can detect the tilt angle of the frame 1. When the detection device 3 detects that the tilt angle of the frame 1 meets the preset angle, it will transmit a signal to the drive mechanism 210. At this time, the drive mechanism 210 starts to operate, and the drive mechanism 210 moves the lifting platform 201 from the higher first position to the lower second position in the vertical direction. In this way, since the workers are always standing on the lifting platform 201, the center of gravity of the maintenance support platform will be lowered as the lifting platform 201 descends, which can prevent the maintenance support platform from tilting further, improving the protection effect for workers and the overall safety performance of the maintenance support platform.

[0031] In some embodiments of this disclosure, the lifting device 2 can be constructed as any device with lifting function. For example, it can be a telescopic frame that can extend and retract in the vertical direction. The top plate of the telescopic frame forms the aforementioned lifting plate, and the bottom plate of the telescopic frame can be connected to the frame body 1. In addition, the drive mechanism 210 can also be a telescopic component such as an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. The fixed end of the telescopic component can be connected to the frame body 1, and the lifting plate 201 can be connected to the drive end of the telescopic component. The telescopic component extends and retracts to achieve the switching of the lifting plate 201 between the first position and the second position. This disclosure does not limit this.

[0032] In some embodiments of this disclosure, the detection device 3 can be configured as an angle sensor, which can measure the angular offset between the frame 1 and the ground. This disclosure does not limit this. For example, under normal maintenance conditions, the frame 1 is generally perpendicular to the ground at 90°. When the frame 1 is offset, the angle between the frame 1 and the ground will be less than 90°. For example, the preset angle can be set to 80° between the frame 1 and the ground. When the angle between the frame 1 and the ground is less than or equal to 80°, the angle sensor sends a signal, which can drive the drive mechanism 210, which is communicatively connected to the angle sensor, to switch the lifting plate 201 from the first position to the second position, thereby protecting the maintenance personnel standing on the lifting plate 201.

[0033] In some implementation schemes, refer to Figures 1 to 3 As shown, the operating platform 101 has an opening 102, and the maintenance support platform also includes a protective barrel 103 connected to the opening 102. The lifting plate 201 is located inside the protective barrel 103, and the inner wall of the protective barrel 103 is provided with a protective layer. In this way, the protective barrel 103 can provide lifting space for the lifting plate 201, and also provide an escape space for workers in the event of the maintenance support platform tipping over. The protective layer can be any suitable structure and material. For example, when the protective barrel 103 is a cylindrical shape, the protective layer inside the protective barrel 103 can be an arc-shaped soft pad. When workers enter the protective barrel 103, the arc-shaped soft pad protects them, reducing the hard injuries caused by direct collisions between workers and the inner wall of the protective barrel 103, thus providing a cushioning effect. This disclosure does not limit the shape of the protective barrel 103; see references. Figure 3 As shown, the protective barrel 103 can be an exemplary circular barrel extending downward from the opening 102, as circular barrels have better resistance to deformation. It should be noted that the protective barrel 103 can also be a cylindrical body of other shapes, such as square, polygonal, etc.

[0034] In some implementations, reference Figures 1 to 3As shown, the drive mechanism 210 may include a first mounting plate 211, a second mounting plate 212, a connector 213, and a drive assembly 220. The first mounting plate 211 is provided with a first spherical groove 2111, and / or the second mounting plate 212 is provided with a second spherical groove 2121. The connector 213 is provided with a spherical protrusion 2131 at each end, and is ball-jointed with the first spherical groove 2111 and / or the second spherical groove 2121 through the spherical protrusion 2131. The second mounting plate 212 is fixed to the bottom of the lifting plate 201. The drive assembly 220 is connected to the first mounting plate 211 and is used to drive the first mounting plate 211 to rotate, so as to drive the second mounting plate 212 to move closer to or away from the first mounting plate 211 through the connector 213. In this way, the connector 213 is ball-jointed to the first mounting plate 211 and the second mounting plate 212 respectively. The ball-joint connection has the advantages of smooth operation and high degree of freedom of movement, so that the drive assembly 220 can drive the first mounting plate 211 to rotate, thereby driving the second mounting plate 212 to move closer to or away from the first mounting plate 211 through the connector 213. In addition, in order to facilitate the assembly between the first mounting plate 211 and the second mounting plate 212 and the connector 213, the first spherical groove 2111 and the second spherical groove 2121 can be designed as grooves with the same structure. This disclosure does not limit this.

[0035] It should be noted that this disclosure does not limit the rotation direction of the first mounting plate 211 when the first mounting plate 211 and the second mounting plate 212 are close to or far apart. For example, when the first mounting plate 211 rotates along... Figure 3 When the drawing direction is rotated clockwise, the connecting piece 213 can reduce the angle with the horizontal direction by following the rotation of the first mounting plate 211, thereby driving the second mounting plate 212 closer to the first mounting plate 211 to realize the descent of the lifting plate 201. When the second mounting plate 211 rotates clockwise, the connecting piece 213 can reduce the angle with the horizontal direction by following the rotation of the first mounting plate 211, thereby driving the second mounting plate 212 closer to the first mounting plate 211 to realize the descent of the lifting plate 201. Figure 3 When the first mounting plate 211 rotates counterclockwise, the connecting piece 213 can increase the angle with the horizontal direction as the first mounting plate 211 rotates, thereby driving the second mounting plate 212 away from the first mounting plate 211 to achieve the lifting of the lifting plate 201. Similarly, the first mounting plate 211 can also be designed so that when it rotates clockwise, the connecting piece 213 drives the second mounting plate 212 away from the first mounting plate 211, and when it rotates counterclockwise, the connecting piece 213 drives the second mounting plate 212 closer to the first mounting plate 211. This disclosure does not limit this.

[0036] Furthermore, the connector 213 can be constructed as any structure with a connecting function, for example, referencing Figure 1 and Figure 2 As shown, the connector 213 can be a rod with spherical protrusions 2131 at both ends, and can be integrally formed. The two spherical protrusions 2131 can be fixedly connected to both ends of the rod, and this disclosure does not limit this.

[0037] In some implementations, reference Figures 1 to 3 As shown, there are multiple first spherical grooves 2111 arranged circumferentially on the first mounting plate 211, and the number of connectors 213 corresponds one-to-one with the number of first spherical grooves 2111; and / or, there are multiple second spherical grooves 2121 arranged circumferentially on the second mounting plate 212, and the number of connectors 213 corresponds one-to-one with the number of second spherical grooves 2121. This arrangement, with multiple connectors 213 connected to the first spherical grooves 2111 and the second spherical grooves 2121, improves the stability of the connectors 213 supporting the second mounting plate 212, indirectly improving the stability of the lifting plate 201. This provides better stability for workers standing on the lifting plate 201, improving maintenance efficiency.

[0038] Furthermore, this disclosure does not limit the number of connectors 213; there can be any number, such as two or more, for reference. Figure 1 and Figure 2 As shown, there are three connectors 213 arranged circumferentially on the first mounting plate 211, and the spacing angle between each connector 213 and the first mounting plate 211 is 120°.

[0039] In some implementations, reference Figure 1 , Figure 2 and Figure 4As shown, the drive assembly 220 includes a first transmission wheel 221, a second transmission wheel 222, and a first drive motor 223. The first transmission wheel 221 is coaxially fixed to the second mounting plate 212 via a transmission shaft; the second transmission wheel 222 meshes with the first transmission wheel 221; the first drive motor 223 is connected to the second transmission wheel 222 and is signal-connected to the detection device 3. Through this connection, the first drive motor 223 can receive signals from the detection device 3. When the maintenance support platform tilts or collapses, the signal from the detection device 3 is received by the first drive motor 223, at which point the first drive motor 223 starts operating. The output shaft of the first drive motor 223 drives the second transmission wheel 222 to rotate, which in turn drives the first transmission wheel 221, which meshes with the second transmission wheel 222, to rotate. The second mounting plate 212 begins to rotate with the rotation of the first transmission wheel 221. The second mounting plate 212 causes the connecting piece 213 to swing, thereby moving the first mounting plate 211 closer to the second mounting plate 212, thus achieving the lifting of the lifting plate 20. 1. The lifting platform descends from the first position to the second position, thereby protecting the personnel performing maintenance on the lifting platform 201. After the maintenance support platform is reset, the first drive motor 223 can rotate in the reverse direction. The output shaft of the first drive motor 223 drives the second transmission wheel 222 to rotate in the reverse direction, which in turn drives the first transmission wheel 221 meshing with the second transmission wheel 222 to rotate in the reverse direction. The second mounting plate 212 begins to rotate in the reverse direction, causing the connecting piece 213 to swing in the reverse direction, which in turn drives the first mounting plate 211 away from the second mounting plate 212, so that the lifting platform 201 is raised from the second position to the first position, completing the reset of the lifting platform 201, and the personnel can resume maintenance work.

[0040] It should be noted that the first transmission wheel 221 and the second transmission wheel 222 can be any type of wheel with transmission function, as shown in the reference. Figure 1 , Figure 2 and Figure 4 As shown, the first transmission wheel 221 can be constructed as a first gear, and the second transmission wheel 222 can be constructed as a second gear. The first gear and the second gear can mesh and transmit power. Gear transmission has the advantages of smooth transmission, compact structure, and accurate transmission ratio. This disclosure does not limit it.

[0041] In some implementations, reference Figure 3As shown, the lifting plate 201 is provided with a guide portion 2011, and the protective barrel 103 is provided with a guide groove 1031 that cooperates with the guide portion 2011 in the vertical direction. In this way, when the lifting plate 201 moves back and forth in the vertical direction, the guide portion 2011 and the guide groove 1031 can limit the lifting plate 201, that is, the lifting plate 201 does not rotate during the vertical movement. Thus, when the first transmission wheel 221 drives the first mounting plate 211 to rotate, the swing of the connecting piece 213 will only drive the second mounting plate 212 and the lifting plate 201 to move in the vertical direction, thereby improving the stability of the lifting plate 201 during the lifting process.

[0042] In some embodiments, the number of guide portions 2011 can be multiple and arranged circumferentially on the lifting plate 201, the number of guide grooves 1031 can be multiple and arranged circumferentially on the inner side wall of the protective barrel 103, and the shapes of the guide portions 2011 and guide grooves 1031 can be arbitrarily suitable, which is not limited in this disclosure.

[0043] In some embodiments, the maintenance support platform may also include a control device, including but not limited to a controller. The controller may be communicatively connected to the detection device 3 and the drive mechanism 210, respectively. It may receive detection signals from the detection device 3 and transmit the detection signals to the drive mechanism 210 to control the drive mechanism 210 to perform corresponding actions to raise or lower the lifting plate 201. This disclosure does not limit this.

[0044] In some implementations, reference Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the drive assembly 220 also includes a locking unit 224, which is communicatively connected to the detection device 3 and can be unlockably locked to the first drive wheel 221 and / or the second drive wheel 222. In this way, when the lifting plate 201 is in the first position, the locking unit 224 can lock the first drive wheel 221, thereby keeping the connecting piece 213 in the corresponding position, indirectly improving the stability of the second mounting plate 211 and the lifting plate 201 in the first position, and improving the stability of the worker standing on the lifting plate 201.

[0045] In some embodiments, the locking unit 224 can also lock the second transmission wheel 222. That is, when the locking unit 224 locks the second transmission wheel 222, the first transmission wheel 221 that meshes with the second transmission wheel 222 also remains locked and stationary. This can also keep the connecting member 213 in the corresponding position, indirectly improving the stability of the second mounting plate 211 and the lifting plate 201 in the first position. This disclosure does not limit this aspect.

[0046] In some implementations, reference Figure 4 and Figure 5 As shown, the locking unit 224 may include a second drive motor 2241, a lead screw 2242, and a locking member 2243. The second drive motor 2241 is communicatively connected to the detection device 3. The lead screw 2242 is connected to the output shaft of the second drive motor 2241 and can rotate around its own axis. The locking member 2243 is connected to the lead screw 2242 and can lock or unlock the first transmission wheel 221 as the lead screw 2242 rotates. In this way, the second drive motor 2241 can receive signals from the detection device 3 to open and close. The output shaft of the second drive motor 2241 can drive the lead screw 2242 to rotate, thereby driving the locking member 2243 connected to the lead screw 2242 to lock or unlock the first transmission wheel 221. (Refer to...) Figure 5 As shown, the locking member 2243 can be configured as a locking clamp that has a locking function for the first transmission wheel 221. For example, when the lead screw 2242 rotates clockwise, the locking clamp can clamp and lock the first transmission wheel 221, and when the lead screw 2242 rotates counterclockwise, the locking clamp can unlock the first transmission wheel 221. This disclosure does not limit this.

[0047] In some implementations, reference Figures 4 to 7 As shown, the locking member 2243 includes a first locking part 22431 and a second locking part 22432. The first locking part 22431 is screwed to the lead screw 2242 and can reciprocate along the axial direction of the lead screw 2242 as the lead screw 2242 rotates. The second locking part 22432 is connected to the first locking part 22431 and can move closer to or further away from the first transmission wheel 221 as the first locking part 22431 moves, thereby locking or unlocking the first transmission wheel 221. In this way, refer to... Figure 5As shown, a fixed frame 7 is also fixed to the bottom of the protective barrel 103. The second drive motor 2241 is connected to one side wall of the fixed frame 7. The lead screw 2242 is connected to the output shaft of the second drive motor 2241 and passes through the fixed frame 7 near the side wall of the second drive motor 2241. The first locking part 22431 is constructed as an isosceles trapezoidal block. The two sides of the isosceles trapezoidal block are provided with second sliding grooves 705. The part of the second locking part 22432 connected to the fixed frame 7 is constructed as a right-angled trapezoidal block. The inclined side of the right-angled trapezoidal block is provided with a second protrusion 704 that slides with the second sliding groove 705. The bottom of the right-angled trapezoidal block is provided with a first protrusion 702. The fixed frame 7 is provided with a first protrusion 702 that slides with the first protrusion. The first sliding groove 701 of the sliding fit 702, and the second locking part 22432 locking to the first transmission wheel 221 is a U-shaped bent plate 706. The side of the U-shaped bent plate 706 near the first transmission wheel 221 has a rack 703 for locking the first transmission wheel 221. In this way, when the lifting plate 201 descends from the first position to the second position, the detection device 3 transmits a signal to the second drive motor 2241, the second drive motor 2241 starts, and the output shaft of the second drive motor 2241 can rotate clockwise, thereby driving the lead screw 2242 to rotate clockwise. The first locking part 22431 can then be locked under the rotation of the lead screw 2242. Figure 5 As the first locking part 22431 moves to the right, the second groove 705 on the waist of the first locking part 22431 slides and engages with the second protrusion 704 on the second locking part 22432. During the gradual rightward movement of the first locking part 22431, the sliding engagement of the second protrusion 704 and the second groove 705 pushes the second locking part 22432 away from the lead screw 2242. With the cooperation of the first groove 701 and the first protrusion 702, the U-shaped bending plate 706 will move along... Figure 5 When the direction of the drawing moves away from the first transmission wheel 221, the rack 703 on the U-shaped bending plate 706 will disengage from the first transmission wheel 221, thus unlocking the first transmission wheel 221. Since the worker is standing on the lifting plate 201, under its own weight, the lifting plate 201 will move downwards. With the rotation of the first transmission wheel 221, the lifting plate 201 moves from the first position to the second position. Similarly, when it is necessary to lock the first transmission wheel 221, the second drive motor 2241 can drive its output shaft to rotate counterclockwise, thereby driving the lead screw 2242 to rotate counterclockwise. The first locking part 22431 can be engaged under the rotation of the lead screw 2242. Figure 5The first locking part 22431 moves to the left in the direction shown in the diagram. At this time, the second groove 705 on the waist of the first locking part 22431 slides and engages with the second protrusion 704 on the second locking part 22432. As the first locking part 22431 gradually moves to the left, the sliding engagement of the second protrusion 704 and the second groove 705 will push the second locking part 22432 closer to the lead screw 2242. With the cooperation of the first groove 701 and the second protrusion 702, the U-shaped bending plate 706 will move along... Figure 5 When the plane of the U-shaped bend plate 706 is close to the first drive wheel 221, the rack 703 on the U-shaped bend plate 706 will mesh with the first drive wheel 221, thus locking the first drive wheel 221.

[0048] The connection between the U-shaped bent plate 706 and the right-angled trapezoidal block can be any suitable form, for example, refer to Figure 6 and Figure 7 As shown, screw holes are provided at the connection between the U-shaped bending plate 706 and the right-angled trapezoidal block. The U-shaped bending plate 706 and the right-angled trapezoidal block can be connected by fasteners such as bolts. This disclosure does not limit this connection.

[0049] The above embodiments describe a method in which the first transmission wheel 221 is unlocked when the lead screw 2242 rotates clockwise and locked when the lead screw 2242 rotates counterclockwise. It should be noted that in other embodiments, the first transmission wheel 221 may be unlocked when the lead screw 2242 rotates counterclockwise and locked when the lead screw 2242 rotates clockwise, achieving the same beneficial effect. Since the locking and unlocking process of the first transmission wheel 221 has been clearly described in the above embodiments, this disclosure will not repeat it again.

[0050] Furthermore, in some embodiments, the number of second locking portions 22432 may be two, and they may respectively cooperate with two second sliding grooves 705 on the two sides of the first locking portion 22431 through the second protrusion 704 to improve the locking effect on the first transmission wheel 221. This disclosure does not limit this.

[0051] In some implementations, reference Figure 1As shown, the maintenance support platform also includes a guardrail 4, and / or a shielding assembly 5, and / or pulleys 6. The guardrail 4 is connected to the operating platform 101; the shielding assembly 5 includes a shielding plate 501 and a telescopic rod 502. The telescopic rod 502 is connected to the operating platform 101, and the shielding plate 501 is connected to the end of the telescopic rod 502 away from the operating platform 101; the pulleys 6 are located at the bottom of the frame 1. With this arrangement, the guardrail 4 can protect the personnel on the operating platform 101. The shielding plate 501 can be set above the operating platform 101 and the guardrail 4 via the telescopic rod 502, which can prevent injury to the personnel from falling objects. The telescopic rod 502 can be adjusted appropriately according to the height of the personnel. The pulleys 6 can facilitate the personnel to push the maintenance support platform to the position that needs maintenance, improving the flexibility of the adjustable position of the maintenance support platform.

[0052] In some embodiments, the telescopic mast 502 may also be an electrically operated telescopic mast. The electrically operated telescopic mast is communicatively connected to the detection device 3. When the detection device 3 detects that the maintenance support platform has tilted or collapsed, it can transmit a signal to the electrically operated telescopic mast. Figure 1 As shown, the electric telescopic pole can move along... Figure 1 The image shrinks downwards, thereby causing the baffle plate 501 to move along... Figure 1 The image is moved downwards to protect the personnel inside the guardrail 4 and the operating platform 101, but this disclosure does not limit this.

[0053] This disclosure exemplarily describes the operation of a maintenance support platform, which may include, for example, the following steps:

[0054] When the maintenance support platform tilts or collapses, the operation of each component is as follows:

[0055] refer to Figures 1 to 7 As shown, during normal maintenance, workers stand on the lifting platform 201 to perform maintenance work. At this time, the lifting platform 201 is in the first position, and the locking unit 224 locks the first transmission wheel 221. When the maintenance support platform tilts or collapses, the detection device 3 first detects the tilt signal and transmits the tilt signal to the first drive motor 223 and the second drive motor 2241. After receiving the signal, the second drive motor 2241 drives the lead screw 2242 to rotate clockwise. The first locking part 22431, which is screwed to the lead screw 2242, moves along the lead screw 2242 clockwise as the lead screw 2242 rotates. Figure 5The image moves to the right, and under the limitation of the positioning frame 7, the second protrusion 704 on the second locking part 22432 slides and engages with the second sliding groove 705 on the first locking part 22431. The first protrusion 702 on the second locking part 22432 slides and engages with the first sliding groove 701 on the positioning frame 7, thus limiting the second locking part 22432. At this time, the two second locking parts 22432 will move along... Figure 5 As the vertical direction of the drawing moves away from the lead screw 2242, the rack 703 on the U-shaped bending plate 706 disengages from the first transmission wheel 221, thus unlocking the first transmission wheel 221. At this point, the first drive motor 223 drives the second transmission wheel 222 to rotate. The second transmission wheel 222 meshes with the first transmission wheel 221, causing the first transmission wheel 221 to rotate clockwise. This clockwise rotation of the first transmission wheel 221 causes the first mounting plate 211 to rotate clockwise. The connecting piece 213 is ball-jointed to the first spherical groove 2111 on the first mounting plate 211 via the spherical protrusion 2131. With the rotation of the first mounting plate 211, the connecting piece 213 begins to swing. The other end of the connecting piece 213 is ball-jointed to the second spherical groove 2121 on the second mounting plate 212 via the spherical protrusion 2131. Simultaneously, limited by the guide part 2011 and the guide groove 1031, the lifting plate 201 driven by the second mounting plate 212 will move along... Figure 1 The image moves downwards, and under the combined action of the first drive motor 223 and the worker's own weight, the lifting plate 201 will move from the first position to the second position more quickly. The telescopic rod 502, which is communicatively connected to the detection device 3, will also move downwards along the direction shown in the image. Figure 1 As the diagram shows the downward contraction, the shield 501 moves downward along with the retraction of the telescopic rod 502 to prevent falling objects from above the testing support platform from injuring the staff. At this point, the lifting plate 201 is in the second position, and the staff is inside the protective barrel 103. The protective layer inside the protective barrel 103 can buffer the staff and complete the emergency avoidance.

[0056] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0057] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0058] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A maintenance support platform, characterized in that, include: The frame, including the control panel; A lifting device is provided below the operating table, including a lifting plate and a driving mechanism connected to the lifting plate. The lifting plate has a first position and a second position. In the first position, the lifting plate and the operating table are at the same height in the vertical direction. as well as A detection device, installed on the frame, is used to detect the tilt angle of the frame; The detection device is communicatively connected to the drive mechanism. When the detection device detects that the frame meets the preset angle, the drive mechanism drives the lifting plate to switch from the first position to the second position. The height of the lifting plate in the vertical direction at the second position is lower than the height at the first position. The operating platform is provided with an opening, and the maintenance support platform also includes a protective barrel connected to the opening. The lifting plate is located inside the protective barrel, and the inner wall of the protective barrel is provided with a protective layer. The driving mechanism includes: a first mounting plate, a second mounting plate, a connector, and a driving assembly. The first mounting plate is provided with a first spherical groove, and / or the second mounting plate is provided with a second spherical groove. The two ends of the connector are spherically hinged to the first spherical groove and / or the second spherical groove via spherical protrusions. The second mounting plate is fixedly connected to the lifting plate. The driving assembly is connected to the first mounting plate and is used to drive the first mounting plate to rotate, so as to move the second mounting plate closer to or away from the first mounting plate through the connector.

2. The maintenance support platform according to claim 1, characterized in that, The number of the first spherical grooves is multiple and they are arranged circumferentially on the first mounting plate, and the number of the connecting members corresponds one-to-one with the number of the first spherical grooves; And / or, the number of the second spherical grooves is multiple and arranged circumferentially on the second mounting plate, and the number of the connectors corresponds one-to-one with the number of the second spherical grooves.

3. The maintenance support platform according to claim 1, characterized in that, The driving component includes: The first transmission wheel is coaxially and fixedly connected to the second mounting plate via a transmission shaft; The second transmission wheel meshes with the first transmission wheel; The first drive motor is connected to the second transmission wheel and is signal-connected to the detection device.

4. The maintenance support platform according to claim 3, characterized in that, The drive assembly further includes a locking unit, which is communicatively connected to the detection device and can be unlockably locked to the first drive wheel and / or the second drive wheel.

5. The maintenance support platform according to claim 4, characterized in that, The locking unit includes: The second drive motor is communicatively connected to the detection device; A lead screw is connected to the output shaft of the second drive motor and can rotate around its own axis; A locking element is connected to the lead screw, and the locking element can be locked or unlocked to the first transmission wheel as the lead screw rotates.

6. The maintenance support platform according to claim 5, characterized in that, The locking element includes: The first locking part is screwed to the lead screw and can reciprocate along the lead screw axis as the lead screw rotates; A second locking part is connected to the first locking part. The second locking part can move closer to or further away from the first transmission wheel as the first locking part moves, so as to lock or unlock the first transmission wheel.

7. The maintenance support platform according to claim 1, characterized in that, The lifting plate is provided with a guide part, and the protective barrel is provided with a guide groove in the vertical direction that cooperates with the guide part.

8. The maintenance support platform according to claim 1, characterized in that, The maintenance support platform also includes: Guardrail, connected to the operating console; And / or, a shielding assembly, including a shielding plate and a telescopic rod, the telescopic rod being connected to the operating table, and the shielding plate being connected to the end of the telescopic rod away from the operating table; And / or, pulleys, located at the bottom of the frame.

Images