A mobile lifting platform device equipped with a sensor

Abstract

The present invention relates to a mobile lifting platform device equipped with sensors. The main body of the mobile lifting platform includes columns and trusses. A truss is connected between the two columns. Limit sliding devices are respectively provided at both ends of the trusses and the columns, and a rotary traction mechanism installed on the trusses is connected through a pulley group. The rotary traction mechanisms on both sides respectively drive the trusses to move up and down along the slide grooves on the inner sides of the columns through traction ropes through the pulley group. Sensors are installed on the trusses, and displacement sensors are respectively provided above the two sides of the trusses. The displacement pull wires of the displacement sensors are vertically fixed at the trusses to display the height and height difference of the two ends on a display screen. The mobile lifting platform of the present invention has a height adjustment method to realize the low-position arrangement of the probe, and to ensure the health and safety of personnel when the platform is raised and lowered. The mobile lifting platform of the present invention is designed to be hand-cranked to improve the efficiency and operability of the platform lifting.

Description

Technical Field

[0001] The present invention relates to a mobile lifting platform, in particular to a mobile lifting platform equipped with a sensor. Background Art

[0002] Current laboratory measurements rely on manual adjustment of the spatial position of sensors, which is complex, inefficient, and has significant limitations. The lifting platform used is prone to uneven speeds and difficulty in control when two people are adjusting it, and is prone to large height differences causing the platform to become stuck.

[0003] Laboratories typically use sensors to perform measurements and obtain relevant physical properties. Different equipment has different measurement depths and ranges, necessitating adjustments to the sensor's position to accurately capture the physical properties at the corresponding location. Currently, laboratory measurements often require manual adjustment of the sensor's spatial position, resulting in complex and inefficient operations.

[0004] In order to achieve rapid and efficient measurement, a mobile lifting platform equipped with sensors was designed. This solution can better realize the measurement of different equipment, especially for situations with a large measurement range. Summary of the Invention

[0005] In response to the above problems, the purpose of the present invention is to provide a safe, efficient and accurate mobile lifting platform device equipped with sensors, so as to solve the problems of time-consuming and labor-intensive sensor placement in traditional devices, the occurrence of human measurement errors, complex operation and low efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a mobile lifting platform device equipped with a sensor, including a mobile lifting platform body, a rotary traction mechanism, a displacement sensor, a pulley group, a limit sliding device, a sensor and a display. The mobile lifting platform body includes a column and a truss. The truss is connected between the two columns. Limit sliding devices are respectively provided at both ends of the truss and the columns, and the rotary traction mechanism installed on the truss is connected through a pulley group. The rotary traction mechanisms on both sides drive the truss to move up and down along the slide groove on the inner side of the column through the traction rope through the pulley group. A sensor is installed on the truss, and displacement sensors are respectively provided on the upper side of the truss. The displacement pull wire of the displacement sensor is vertically fixed at the truss, which is used to display the height and height difference of the two ends on the display screen.

[0007] Furthermore, a slide groove is provided on one side of the column, the interior of the column base is hollow, and slide grooves are provided on the upper and lower sides of the truss beam.

[0008] Furthermore, the truss base is hollow inside and is made of aluminum, and the trusses are all made of aluminum.

[0009] Furthermore, the display screen is installed near the upper side of the rotating wheel traction mechanism and can rotate freely, and its data communication is combined with the displacement sensor signal.

[0010] Furthermore, the limiting sliding device is composed of a slider and a slider fixing plate. The right-angle surfaces of the slider are fixedly connected to the slider fixing plate by fasteners. The limiting sliding device cooperates with the column and the truss through the slider.

[0011] Furthermore, the fixed pulley in the pulley block is fixed above the column, the movable pulley is fixed on the upper surface of the truss, and the traction rope passes through the rotary traction mechanism and then through the pulley block to be fixed to the support frame on the column side.

[0012] Furthermore, the rotary wheel traction mechanism is fixed to the side of the mobile lifting platform column without a slide groove through the through hole on the winch seat with bolts. The traction rope starts from the rotary wheel traction mechanism and passes through the fixed pulley and the movable pulley and is fixed on the rope support frame, wherein the fixed pulley is fixed on the top of the column and the movable pulley is fixed on the truss. The traction rope is reeled in by turning the crank, thereby controlling the lifting and lowering of the mobile platform, and the pulley group connects the mobile platform body and the rotary wheel traction mechanism into a whole.

[0013] Furthermore, the rotating wheel traction mechanism includes a capstan seat, a large shaft, a small shaft, a large gear, a small gear, a wheel hub, a ratchet mechanism, a wheel hub fixing mechanism, a bearing, and a handle; a rotating handle 1 is installed on the large shaft, and is installed with an interference fit with the right small bearing, the left small bearing, the right large bearing, the left large bearing and the small gear; the wheel hub is installed on the large bearing with an interference fit, the ratchet disk in the ratchet mechanism is fastened to the wheel hub through a threaded hole, and the large shaft as a whole is interference fit with the capstan frame through the small bearing, so that the large shaft as a whole and the capstan frame form a whole; a shaking handle 2 is installed on the small shaft, and is installed with an interference fit with the right small bearing, the left small bearing, the large gear and the small gear, the small shaft as a whole is interference fit with the capstan frame through the small bearing, and the wheel hub and the small gear are meshed with each other, and the small gear and the large gear are meshed with each other, so that the rotation of the traction wheel hub can be controlled by rotating handle 1 or handle 2.

[0014] Furthermore, by turning the handle, the transmission is transmitted through the small gear on the large shaft to drive the large gear on the small shaft, and then the small gear on the small shaft drives the wheel hub to rotate. By shaking the handle, the small gear engages with the gear of the wheel hub to control the rotation of the wheel hub, thereby realizing differential speed regulation to adjust the rise of the mobile lifting platform and realizing coarse and fine adjustment functions.

[0015] Furthermore, the two hub fixing plates in the hub fixing mechanism are respectively fixed to the columns with screws and aligned with the brake pads on the hub, and the two hub fixing plates are connected with horn screws, and the movement and locking of the brake pads are achieved by the loosening and tightening of the horn screws; the ratchet plate is installed and fixed on the column, and the ratchet piece is installed on the ratchet plate and kept in a free moving state, that is, it keeps in contact with the ratchet disk under the action of gravity or spring force, and the ratchet piece can jump freely when the ratchet disk rotates clockwise, and the ratchet piece is stuck with the ratchet disk when it rotates counterclockwise, which is used to overcome the free fall of the mobile lifting platform caused by the handle being out of hand; and the ratchet piece is in a locked state, that is, the ratchet piece is in a fixed state and remains disengaged from the ratchet disk.

[0016] The beneficial effects of the present invention are:

[0017] The present invention has the following positive effects compared with the prior art due to the adoption of the above technology:

[0018] The mobile lifting platform of the present invention has a height adjustment method, which enables the probe to be arranged at a low position, and ensures the health and safety of personnel when the platform is raised and lowered.

[0019] The mobile lifting platform of the present invention is designed to be hand-cranked, which improves the efficiency and operability of the platform lifting.

[0020] The mobile lifting platform of the present invention has a coarse adjustment mode and a fine adjustment mode, thereby improving the efficiency and accuracy of the platform's movement and lifting.

[0021] The mobile lifting platform of the present invention has position detection and display, which improves the coordination of personnel adjustment and avoids excessive position difference caused by uneven adjustment speed, which may cause the platform to become stuck.

[0022] The mobile lifting platform of the present invention comprises a ratchet mechanism, a wheel hub fixing mechanism and a limited sliding device, thereby ensuring safe and reliable operation of the platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an overall diagram of the mobile lifting platform device of the present invention;

[0024] Figure 2 It is a partial three-dimensional diagram of the main body of the mobile lifting platform of the present invention;

[0025] Figure 3 is a three-dimensional diagram of the limited sliding device of the present invention;

[0026] Figure 4 is a three-dimensional diagram of the runner traction mechanism of the present invention;

[0027] Figure 5 is a three-dimensional diagram of the runner traction mechanism of the present invention;

[0028] Figure 6 is a schematic diagram of the main shaft of the runner traction mechanism of the present invention;

[0029] Figure 7 It is a schematic diagram of the main shaft of the present invention with the attached installation parts;

[0030] Figure 8 It is a three-dimensional diagram of the installation of the ratchet and the hub of the present invention;

[0031] Figure 9 is a schematic diagram of the small shaft of the runner traction mechanism of the present invention;

[0032] Figure 10 It is a schematic diagram of the small shaft of the present invention with attached mounting parts;

[0033] Figure 11 It is a three-dimensional diagram of the winch frame of the present invention. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings and specific embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] like Figure 1 As shown, an embodiment of the present invention provides a mobile lifting platform device equipped with a sensor, including a mobile lifting platform body 1, a rotating wheel traction mechanism 2, a displacement sensor 3, a pulley group 4, a limiting sliding device 5, a sensor 6, and a display 7.

[0036] like Figure 1 、 Figure 2 and Figure 3 As shown, the main body 1 of the mobile lifting platform is composed of columns 11, trusses 12, front trusses 13, upper trusses 14, and rear trusses 15. Vertical chute tracks are provided on the columns 11, and horizontal chute tracks are provided on the upper and lower sides of the trusses 12. The trusses 12 are fixed to the columns 11 by a limited sliding device 5. The limited sliding device 5 consists of a slider 51, a slider fixing plate 52, a countersunk bolt 53, and a flat-bottomed hexagonal nut 54. When the bolts are loose, the limited slider 51 can slide in the chute track of the column 11; when the bolts are tightened, it loses its sliding performance, thus paving the way for the lifting and fixing functions of the mobile lifting platform.

[0037] like Figure 1 、 Figure 2 、 Figure 3 and Figure 11As shown, the rotary traction mechanism 2 is bolted to the unslotted side of the mobile platform column 11 through a through hole 222 in the capstan base 21. A traction rope 43 travels from the rotary traction mechanism 2 through a fixed pulley 41 and a movable pulley 42, securing it to the rope support frame 13. The fixed pulley 41 is secured to the top of the column 11, while the movable pulley 42 is secured to the truss 12. The traction rope 43 is reeled in by turning the crank handle 219 or 218, thereby controlling the raising and lowering of the mobile platform. The pulley assembly 4 then connects the mobile platform body 1 and the rotary traction mechanism 2 into a single unit. A rotary traction mechanism 2 is located on each side of the mobile platform body 1, facilitating the raising and lowering of the mobile platform and ensuring its levelness after adjustment. The height of the mobile platform is measured using a displacement sensor 3. The sensor body 31 is fixed to the top, and one end of the displacement cable 32 is vertically fixed to the truss 14. The height and height difference between the two ends are displayed on the display screen 7. This allows operators at both ends to better coordinate and adjust the mobile lifting platform, overcoming the risk of the mobile platform locking during ascent due to a large height difference. Sensors 6 are placed in an array on the upper side of the truss of the mobile lifting platform 1. By placing and securing the sensors 6 before raising or lowering the mobile platform, operator safety is further protected.

[0038] To further improve the efficiency and accuracy of the mobile platform's adjustment, a rotating wheel traction mechanism 2 was designed. It specifically consists of the following components: a capstan seat 21, a large shaft 22, a small shaft 23, a large gear 25, small gears 24 / 26, a hub 27, ratchet mechanisms (28 / 29 / 210), a hub fixing mechanism (211 / 212 / 213), bearings 214 / 215 / 216 / 217 / 220 / 221, and handles 218 / 219. A rotating handle 218 is mounted on the large shaft 22 and is interference-fitted with the right small bearing 214, the left small bearing 215, the right large bearing 216, the left large bearing 217, and the small gear 24.

[0039] The hub 27 is installed with an interference fit on the large bearings 216 / 217. The ratchet disc 28 is fastened to the hub 27 via the threaded hole 228. The large shaft as a whole is interference fit with the capstan frame 21 via the small bearings 214 / 215, so that the large shaft and the capstan frame form a single unit. The small shaft 23 is equipped with a rocking handle 219, which is installed with an interference fit with the right small bearing 220, the left small bearing 221, the large gear 25, and the small gear 26. The small shaft 23 is installed with an interference fit with the capstan frame 21 via the small bearings 220 / 221, and the hub 27 and the small gear 26 are meshed with each other, and the small gear 24 and the large gear 25 are meshed with each other. The rotation of the pulley hub 27 can then be controlled by turning the handle 218 or the handle 219. By turning the handle 218, its transmission drives the large gear 25 on the small shaft 23 through the small gear 24 on the large shaft 22, and then drives the wheel hub 27 through the small gear 26 on the small shaft 23. By shaking the handle 219, the gears of the small gear 26 and the wheel hub 27 are engaged to control the wheel hub 27. The two have different transmission ratios, thereby achieving differential speed regulation to adjust the rise of the mobile lifting platform, realizing coarse and fine adjustment functions.

[0040] To further enhance the operability and safety of the wheel traction mechanism, a hub fixing mechanism (211 / 212 / 213) and a ratchet mechanism (28 / 29 / 210) are also included. Hub fixing plates 211 and 212 are each secured to column 11 with screws and aligned with brake pads 227 on wheel hub 27. Hub fixing plates 211 and 212 are connected by clevis screws 213. Adjusting the clevis screws 213 allows for movement and locking of the brake pads. The ratchet plate 29 of the ratchet mechanism (28 / 29 / 210) is mounted and fixed on the column 11. The ratchet piece 210 is mounted on the ratchet plate 29 and remains in a free-moving state. That is, it maintains contact with the ratchet disc 28 under the action of gravity or the elastic force of a spring (not reflected in this device). When the ratchet disc 28 rotates clockwise, the ratchet piece 210 can jump freely. When it rotates counterclockwise, the ratchet piece 210 and the ratchet disc 28 are locked. This further overcomes the free fall of the mobile lifting platform caused by the handle being released. The ratchet piece is in a locked state, that is, the ratchet piece 210 is in a fixed state and remains disengaged from the ratchet disc.

[0041] Working principle of the present invention:

[0042] The truss beams of the mobile lifting platform body 1 are raised and lowered using a traction rope through a pulley block 4 and a displacement sensor 3. The values measured by these two sensors 3 are processed and displayed on a display screen 7, providing the operator with timely feedback on the operation of the truss beams 2. To further ensure the safety and reliability of the operation, a ratchet mechanism, a hub fixing mechanism, and a limited sliding device are used to provide safety guarantees for the movement and fixation of the platform.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the implementation and protection scope of the present invention.

[0044] In a further embodiment of the present application, a preferred embodiment of a method for lifting a mobile lifting platform body 1 is shown, comprising the mobile lifting platform body 1 described above, and further comprising a rotary wheel traction mechanism 2, a displacement sensor 3, a pulley block 4, a limited sliding device 5, a sensor 6, and a display 7. The platform lifting method includes:

[0045] Step 1: Adjust the truss 12 of the mobile lifting platform 1 to a low position and keep the upper plane of the truss 12 horizontal, and lock the limiting sliding device 5 to keep the truss 12 and the column 11 fixed, so that personnel can place the sensor 6 on the upper plane of the truss 12 in a regular array.

[0046] Step 2: Loosen the limited sliding device 5 to allow the truss 12 and column 11 to slide freely up and down. Adjust the ratchet plate 210 of the ratchet mechanism 28 / 29 / 210 to ensure that the ratchet plate 210 is in a free-moving state. Loosen the clevis screw 213 of the hub fixing mechanism 211 / 212 / 213 counterclockwise to release the locked state between the hub fixing plate 212 and the brake pad 227 of the hub 27.

[0047] Step 3: In coarse adjustment mode, two people simultaneously rotate the rocking handles 219 on both sides of the mobile lifting platform counterclockwise. Through the meshing of the gears of the pinion 26 and the hub 27, the hub 27 is controlled to reel in the traction rope 43, thereby controlling the ascent of the mobile lifting platform. The two people adjust the adjustment speed by observing the position information displayed on the display 7. When the mobile lifting platform approaches the predetermined height, the fine adjustment mode is switched to.

[0048] Step 4: In fine-tuning mode, two people rotate the handle 218 at the same time, and the large gear 25 on the small shaft 23 is driven by the small gear 24 on the large shaft 22, and the small gear 26 on the small shaft 23 further drives the hub 27 to rotate to reel in the traction rope 43 to control the rise of the mobile lifting platform, so that the platform slowly approaches the target height.

[0049] Step 5: When the target height is reached, tighten the clevis screws 213 of the hub fixing mechanism 211 / 212 / 213 clockwise to lock the hub fixing plate 212 and the brake pad 227 of the hub 27. Also, secure the limited sliding device 5 to lock the truss beam 12 and the column 11.

[0050] Step 6: After the sensor has finished its work, loosen the limit sliding device 5 to allow the truss 12 and the column 11 to slide freely up and down. Adjust the ratchet plate 210 of the ratchet mechanism 28 / 29 / 210 to ensure that the ratchet plate is in a free locked state and to disengage the ratchet plate from the ratchet disk. Loosen the horn screw 213 of the hub fixing mechanism 211 / 212 / 213 counterclockwise to disengage the hub fixing plate 212 and the brake pad 227 of the hub 27 from the locked state. At the same time, hold the rocking handle 219 and slowly lower the mobile lifting platform to the lowest position. Re-fix the limit sliding device 5, the hub fixing mechanism 211 / 212 / 213, and restore the ratchet mechanism to its active state.

[0051] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0052] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A mobile lifting platform device equipped with a sensor, characterized in that: The trolley system comprises a main body of a mobile lifting platform, a rotary wheel traction mechanism, a displacement sensor, a pulley block, a limit sliding device, a sensor and a display. The main body of the mobile lifting platform comprises a column and a truss. A truss is connected between the two columns. Limit sliding devices are respectively provided at both ends of the truss and the columns, and the rotary wheel traction mechanism installed on the truss is connected through a pulley block. The rotary wheel traction mechanisms on both sides respectively drive the truss to move up and down along the slide groove on the inner side of the column through the traction rope through the pulley block. A sensor is installed on the truss, and displacement sensors are respectively provided above both sides of the truss. The displacement pull wire of the displacement sensor is vertically fixed at the truss to display the height and height difference of the two ends on the display screen; a slide groove is provided on one side of the column, the interior of the column base is hollow, and slide grooves are provided on the upper and lower sides of the truss; the rotary wheel traction mechanism comprises a capstan seat, a large shaft, a small The gear wheel is connected with the gear of the large shaft by the gear of the large shaft, and the gear of the large shaft is connected with the gear of the large shaft by the gear of the large shaft, and the gear of the large shaft is connected with the gear of the large shaft by the gear of the large shaft.

2. The sensor-carrying mobile lifting platform device according to claim 1, characterized in that: The truss base is hollow inside and is made of aluminum, and the trusses are all made of aluminum.

3. The sensor-carrying mobile lifting platform device according to claim 1, characterized in that: The display screen is installed near the upper side of the rotating wheel traction mechanism and can rotate freely. Its data communication is combined with the displacement sensor signal.

4. The sensor-carrying mobile lifting platform device according to claim 1, characterized in that: The limit sliding device is composed of a slider and a slider fixing plate. The right-angle surfaces of the slider are fixedly connected to the slider fixing plate by fasteners. The limit sliding device cooperates with the column and the truss through the slider.

5. The sensor-carrying mobile lifting platform device according to claim 1, characterized in that: The fixed pulley in the pulley block is fixed above the column, the movable pulley is fixed on the upper surface of the truss beam, and the traction rope passes through the rotary traction mechanism and then through the pulley block to be fixed on the support frame on the column side.

6. The sensor-carrying mobile lifting platform device according to claim 1, characterized in that: The rotary wheel traction mechanism is fixed to the side of the mobile lifting platform column without a slide groove by bolts through the through hole on the capstan seat. The traction rope starts from the rotary wheel traction mechanism and passes through the fixed pulley and the movable pulley and is fixed on the rope support frame, wherein the fixed pulley is fixed on the top of the column and the movable pulley is fixed on the truss. The traction rope is reeled in by turning the crank handle, thereby controlling the lifting and lowering of the mobile platform, and the pulley group connects the mobile lifting platform body and the rotary wheel traction mechanism into a whole.

7. The sensor-carrying mobile lifting platform device according to claim 1, characterized in that: By turning the first handle, the transmission is transmitted through the small gear on the large shaft to drive the large gear on the small shaft, and then the small gear on the small shaft drives the wheel hub to rotate. By shaking the second handle, the small gear on the small shaft engages with the gear of the wheel hub to control the rotation of the wheel hub, thereby realizing differential speed regulation to adjust the rise of the mobile lifting platform and realizing coarse and fine adjustment functions.

8. The sensor-carrying mobile lifting platform device according to claim 1, characterized in that: The two hub fixing plates in the hub fixing mechanism are respectively fixed to the columns with screws and aligned with the brake pads on the hub, and the two hub fixing plates are connected with horn screws, and the movement and locking of the brake pads are achieved by tightening the horn screws; the ratchet plate is installed and fixed on the column, and the ratchet piece is installed on the ratchet plate and kept in a free movable state, that is, it keeps in contact with the ratchet disk under the action of gravity or spring elastic force, and the ratchet piece can jump freely when the ratchet disk rotates clockwise, and the ratchet piece is stuck with the ratchet disk when it rotates counterclockwise, which is used to overcome the free fall of the mobile lifting platform caused by the handle being out of hand; and the ratchet piece is in a locked state, that is, the ratchet piece is in a fixed state and remains disengaged from the ratchet disk.

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