Construction hoist cage with unbalance load adjusting function

Abstract

The invention discloses a construction hoist cage with an unbalance loading adjusting function, which is applied to the field of hoists, according to the scheme, unbalance loading detection is carried out on the cage in a static state by utilizing the liquidity of liquid, the liquid automatically flows towards the unbalance loading side every time after personnel and materials enter and exit, the unbalance loading direction is detected through pressure difference, and the unbalance loading accuracy is improved. Compared with a tilt angle sensor in the prior art, the tilt angle sensor has the advantages that the influence of long-term vibration on the detection precision can be effectively reduced, the detection result is visually expressed, timely information feedback can be provided for installation personnel in the installation stage, unbalance loading of the cage in the installation stage is avoided, the liquid level is reduced through morphological change, and the detection accuracy is improved. According to the technical scheme, shaking of the liquid during operation of the suspension cage is effectively reduced, the unbalance loading condition of the suspension cage is detected again through the liquid fluidity on the basis, the inclined guide rail frame is recognized accordingly, and therefore maintenance personnel are reminded to conduct adjustment in time.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevators, in particular to a construction elevator cage with unbalanced load adjustment function. BACKGROUND

[0002] Construction elevators are commonly known as construction elevators, but construction elevators include a broader definition, and construction platforms also belong to the series of construction elevators. Pure construction elevators are composed of several parts such as car, driving mechanism, standard section, attached wall, chassis, fence, electrical system, etc. It is a construction machinery for carrying people and goods, and its unique box structure makes it comfortable and safe to ride.

[0003] The cage of the elevator will be unbalanced during actual operation. The root cause of unbalanced load is the center of gravity of the load, including people and objects, which does not coincide with the geometric center of the cage structure, resulting in a tipping moment. Therefore, the existing cage has an unbalanced load adjustment function, such as the unbalanced force balancing mechanism of the elevator disclosed in CN118405623A and the construction elevator with unbalanced load detection function and the unbalanced load detection method thereof disclosed in CN118025927B.

[0004] But the existing elevators are all detected by sensors, which are convenient and practical, but not intuitive. When the cage enters and exits people and materials each time, people and materials cannot know how to position themselves to adjust the unbalanced cage, especially in the initial installation stage, the installation personnel cannot know whether the cage is unbalanced due to installation reasons. SUMMARY

[0005] The core of the present application is to perceive the unbalanced load condition of the cage through the fluidity of the liquid to solve the problem of non-intuitive detection results in the prior art. At the same time, it can also adjust the unbalanced load according to the detection results, and assist the personnel and materials in the cage to reposition, in addition, it can also detect the running cage through the change of form to identify the guide rail frame that has tilted.

[0006] To solve the above problems, the present application adopts the following technical scheme.

[0007] A construction elevator cage with unbalanced load adjustment function, comprising a guide rail frame and a cage, the bottom of the cage is fixedly connected with a bearing plate, and the bottom of the bearing plate is fixedly connected with a bottom frame, the diagonal line of the bottom frame is fixedly connected with sliding rails, and the two sliding rails are cross arranged, the two sides of the two sliding rails are provided with sliding grooves, and the sliding grooves are slidably connected with balance blocks, and the inside of each sliding groove is rotatably connected with a screw rod threadedly connected with the balance block, and the screw rod is driven by a driving motor; The eccentric load detector comprises a dynamic detection disc and a plurality of equidistantly-circumferential static detection tubes fixedly connected to the side wall of the dynamic detection disc, and the plurality of static detection tubes are in communication with the dynamic detection disc, the inside of the dynamic detection disc and the static detection tubes are jointly filled with flowing liquid, the inner wall of each static detection tube is provided with a thin film pressure sensor, and the thin film pressure sensor is arranged towards the center point of the dynamic detection disc, the eccentric load detector further comprises an eccentric load adjusting module in signal connection with the plurality of thin film pressure sensors, and the eccentric load adjusting module is in signal connection with a plurality of driving motors through a micro-control processor.

[0008] Further, the liquid level of the flowing liquid is flush with the center line of the thin film pressure sensor, and the flowing liquid adopts high-viscosity liquid.

[0009] Further, the end of each static detection tube away from the dynamic detection disc is fixedly connected with an indicating lamp in signal connection with the thin film pressure sensor, and the static detection tube adopts transparent material.

[0010] Preferably, the inner wall of each dynamic detection disc opposite to the thin film pressure sensor is fixedly embedded with an electromagnet, the inner wall of the static detection tube is sealingly and slidably connected with a liquid pushing plate repulsive to the electromagnet, the thin film pressure sensor is fixedly embedded on the side wall of the liquid pushing plate, the side walls on both sides of the electromagnet are provided with grooves, and an elastic belt is fixedly connected between the inner wall of the groove and the liquid pushing plate.

[0011] Preferably, the upper end of the dynamic detection disc is fixedly connected with two same and symmetrically-distributed telescopic rods one and two, the lower end of each telescopic rod is fixedly connected with a floating ball, the side wall of the telescopic rod one is provided with an infrared laser emitter, the side wall of the telescopic rod two is provided with an arrayed photosensitive sensor vertically arranged, the center point of the arrayed photosensitive sensor is flush with the center point of the infrared laser emitter, and the eccentric load detector further comprises a guide rail frame inclination detection module, and the guide rail frame inclination detection module comprises a starting unit in signal connection with the electromagnet and a position marking unit in signal connection with the arrayed photosensitive sensor.

[0012] Further, when the plurality of liquid pushing plates move to the maximum position away from the electromagnet, the liquid level of the flowing liquid is located above the static detection tube, and at this time, the floating ball floats on the liquid level of the flowing liquid.

[0013] Further, the floating ball is of hollow structure, and the density of the floating ball is less than that of the flowing liquid.

[0014] Optionally, the upper surface of the bearing plate is further embedded with a plurality of station indicating lamps, the plurality of station indicating lamps are distributed according to the two center lines and the two diagonal lines of the bearing plate, the inside of each balancing block is provided with a position sensor, and the position sensor is in signal connection with the plurality of station indicating lamps.

[0015] Compared with the prior art, the advantages of the present application are that: (1) The scheme utilizes the fluidity of the liquid to detect the unbalanced load of the cage in static state. After each time of entering and exiting personnel and materials, the liquid automatically flows to the side of unbalanced load, and the direction of unbalanced load is detected through the pressure difference. Compared with the inclination sensor in the prior art, the influence of long-term vibration on the detection accuracy can be effectively reduced, the detection result is expressed in an intuitive form, timely information feedback can be provided to the installation personnel during the installation stage, and unbalanced load of the cage during the installation stage can be avoided.

[0016] (2) The liquid level is also reduced through morphological change, the shaking of the liquid during the running of the cage is effectively reduced, and the unbalanced load of the cage is detected again by using the fluidity of the liquid, so as to identify the guide rail frame that is tilted, and timely remind the maintenance personnel to adjust. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the present application; Figure 2 is an installation schematic view of the balance block and the slide rail of the present application; Figure 3 is an installation schematic view of the unbalanced load detector of the present application; Figure 4 is a perspective view of the unbalanced load detector of the present application; Figure 5 is a front view of the unbalanced load detector of the present application; Figure 6 is a state view of the unbalanced load detector of the present application when detecting the unbalanced load of the cage in static state; Figure 7 is a balance block movement schematic view of the present application when the cage is unbalanced in different directions; Figure 8 is a state view of the unbalanced load detector of the present application after switching from static detection to dynamic detection; Figure 9 is a state view of the unbalanced load detector of the present application when detecting the unbalanced load of the cage in dynamic state.

[0018] Mark explanation in the figure: 1 guide rail frame, 2 cage, 3 bearing plate, 4 bottom frame, 5 slide rail, 6 unbalanced load detector, 601 dynamic detection disc, 602 static detection tube, 603 electromagnet, 604 liquid pushing plate, 605 thin film pressure sensor, 606 elastic belt, 607 flowing liquid, 608 indicator light, 7 balance block, 8 telescopic rod one, 9 telescopic rod two, 10 floating ball, 11 infrared laser emitter, 12 array type photosensitive sensor, 13 station indicator light. DETAILED DESCRIPTION

[0019] The technical solutions will be described clearly and completely in combination with the drawings in the embodiments of the present application.

[0020] First implementation method: Please see Figure 1 , Figure 2 and Figure 3 A construction hoist cage with off-center load adjustment function includes a guide rail frame 1 and a cage 2. A bearing plate 3 is fixedly connected to the bottom of the cage 2, and a bottom frame 4 is fixedly connected to the bottom of the bearing plate 3. A slide rail 5 is fixedly connected to the diagonal of the bottom frame 4, and the two slide rails 5 are arranged crosswise. Slide grooves are opened on both sides of the two slide rails 5, and a balance block 7 is slidably connected in the slide groove. A screw threadedly connected to the balance block 7 is rotatably connected inside each slide groove, and the screw is driven by a drive motor (the specific structure and working principle are well known to those skilled in the art and will not be described in detail here). The drive motor drives the screw to rotate, and the balance block 7 moves along the slide rail 5 under the drive of the screw, thereby realizing the function of self-adjusting off-center load. Please see Figure 4 , Figure 5 and Figure 7 The off-center load detector 6 includes a dynamic detection disk 601 and multiple static detection tubes 602 that are equidistantly and fixedly connected to the side wall of the dynamic detection disk 601. The multiple static detection tubes 602 are connected to the dynamic detection disk 601. The interior of the dynamic detection disk 601 and the static detection tubes 602 are jointly filled with flowing liquid 607. A thin-film pressure sensor 605 (the specific model is selected according to actual needs and will not be described in detail here) is installed on the inner wall of each static detection tube 602. The thin-film pressure sensor 605 is positioned facing the center point of the dynamic detection disk 601. The off-center load detector 6 also includes an off-center load adjustment module that is signal-connected to the multiple thin-film pressure sensors 605. The off-center load adjustment module is signal-connected to multiple drive motors via a microcontroller. After personnel and materials enter the cage 2, if the cage 2 experiences an off-center load, the flowing liquid 607 will flow towards the off-center side. In a horizontal state, all the diaphragm pressure sensors 605 detect the same pressure. However, when the flowing liquid 607 flows towards the off-center side, the increased liquid level causes the pressure detected by the diaphragm pressure sensor 605 to increase, indicating an off-center load in that direction. The diaphragm pressure sensor 605 then triggers the off-center load adjustment module based on the pressure difference. The off-center load adjustment module, via a microcontroller, activates a drive motor located opposite to the diaphragm pressure sensor 605, moving the balance block 7 in the opposite direction to the off-center load, thus achieving automatic off-center load adjustment. Figure 7 In the figure, 'a' represents the movement of balance block 7 in the four directions of front, back, left, and right. Figure 7 In the figure, 'b' indicates the movement of balance block 7 in four directions: left front, right front, left rear, and right rear. The liquid level of the flowing liquid 607 is flush with the center line of the thin-film pressure sensor 605. The flowing liquid 607 is a high-viscosity liquid (preferably an oily liquid, but other liquids can be selected according to actual needs). The internal friction of the high-viscosity liquid is extremely large, and the pulling force between the molecular layers is large. In order to allow the liquid surface to recover to calm down as soon as possible after shaking, the flowing liquid 607 is a high-viscosity liquid to avoid interfering with the accuracy of the detection results. Each static detection tube 602 has an indicator light 608 fixedly connected to the end away from the dynamic detection plate 601, which is connected to the signal of the diaphragm pressure sensor 605. The static detection tube 602 is made of transparent material. If the installation accuracy is insufficient during the installation of the cage 2, the cage 2 will be unbalanced before it is put into operation, which will aggravate the unbalanced load situation later. Therefore, the unbalanced load detector 6 is activated during the installation stage. When the cage 2 is not in a horizontal state, the diaphragm pressure sensor 605 can detect the direction of the unbalanced load of the cage 2, and the static detection tube 602 will light up the indicator light 608 in this direction, so as to give the installers a visual prompt and make it easy to adjust the cage 2 in time. Please see Figure 2 The upper surface of the bearing plate 3 is also inlaid with multiple station position indicator lights 13, which are distributed along the two center lines and two diagonals of the bearing plate 3. Each balance block 7 is equipped with a position sensor (the specific model is selected according to actual needs and will not be described in detail here). The position sensor is connected to the multiple station position indicator lights 13. When personnel and materials enter the cage 2, if the cage 2 is unbalanced, the unbalanced load can be adjusted by the balance block 7. However, the weight of the balance block 7 is limited, and even if the balance block 7 is moved, the adjustment may not be in place. Therefore, when the balance block 7 is moved, the position sensor inside the balance block 7 detects the position of the balance block 7 and lights up the station position indicator light 13 located directly above the balance block 7. This provides intuitive station position information to the personnel inside the cage 2 and assists the balance block 7 in adjusting the unbalanced load. This embodiment utilizes the fluidity of liquid to detect off-center load on a suspended cage under static conditions. After each entry and exit of personnel and materials, the liquid automatically flows to the side of the off-center load, and the direction of the off-center load is detected by the pressure difference. Compared with the tilt sensor in the prior art, it can effectively reduce the impact of long-term vibration on the detection accuracy, and express the detection results in an intuitive form, providing timely information feedback to the installers during the installation phase and preventing off-center load from occurring during the installation phase.

[0021] Second implementation method: Based on the first embodiment, the tilt of the cage 2 during the lifting process is detected by switching the shape of the off-center load detector 6, thereby indirectly detecting the tilt of the guide rail frame 1, while the rest remains the same as the first embodiment. Please seeFigure 8 , Figure 9 Each dynamic detection disc 601 has an electromagnet 603 (made of electromagnetic material) fixedly embedded in the inner wall of the membrane pressure sensor 605. The inner wall of the static detection tube 602 is slidably connected to a pusher plate 604 that repels the electromagnet 603. The membrane pressure sensor 605 is fixedly embedded in the side wall of the pusher plate 604. Grooves are formed on both sides of the static detection tube 602 located near the electromagnet 603, and an elastic band 606 is fixedly connected between the inner wall of the groove and the pusher plate 604. Two identical and symmetrically distributed structures are fixedly connected to the upper inner wall of the dynamic detection disc 601. The system includes telescopic rod 8 and telescopic rod 9, with floats 10 fixedly connected to the lower ends of both. An infrared laser emitter 11 (specific model selected based on actual needs, not described in detail here) is mounted on the side wall of telescopic rod 8. A vertically arranged array of photosensitive sensors 12 (specific model selected based on actual needs, not described in detail here) is mounted on the side wall of telescopic rod 9, with the center point of the array of photosensitive sensors 12 aligned with the center point of the infrared laser emitter 11. The off-center load detector 6 also includes a guide rail tilt detection module. The system includes a starting unit connected to the electromagnet 603 and a position marking unit connected to the array-type photosensitive sensor 12. When the cage 2 starts to move up and down, the starting unit first activates the electromagnet 603. The electromagnet 603 generates a magnetic force that repels the liquid-pushing plate 604. The liquid-pushing plate 604 and the thin-film pressure sensor 605 push all the flowing liquid 607 in the static detection tube 602 into the dynamic detection disk 601. At this time, the liquid level of the flowing liquid 607 inside the dynamic detection disk 601 rises, and the liquid surface area also decreases. This effectively reduces the sloshing of the liquid surface. The float 10 floats on the liquid surface. At this time, the infrared laser emitter 11 is activated. The laser emitted by the infrared laser emitter 11 illuminates the array photosensitive sensor 12. If the dynamic detection disk 601 is in a horizontal state, the center of the array photosensitive sensor 12 receives the laser signal. If the upper and lower sides of the dynamic detection disk 601 receive the laser signal, it indicates that the dynamic detection disk 601 is tilted. This indirectly determines that the guide rail 1 is tilted. The position marking unit records the position information of the guide rail 1 at this point, so that maintenance personnel can find the tilted guide rail 1 in a timely and accurate manner. When the multiple pusher plates 604 move to the maximum position away from the electromagnet 603, the liquid surface of the flowing liquid 607 is above the static detection tube 602, and the float ball 10 floats on the liquid surface of the flowing liquid 607. When the electromagnet 603 is activated, the pusher plates 604 move towards the dynamic detection disk 601 under the magnetic repulsion force, and push the flowing liquid 607 inside the static detection tube 602 into the dynamic detection disk 601, so that the float ball 10 floats on the liquid surface, thereby allowing the infrared laser emitter 11 and the array photosensitive sensor 12 to detect the tilt of the dynamic detection disk 601. The float 10 is a hollow structure and its density is less than that of the flowing liquid 607. Since the telescopic rod 1 8, telescopic rod 2 9, infrared laser emitter 11, and array photosensitive sensor 12 all have weight, the buoyancy of the float 10 must be large enough to make it float on the surface of the flowing liquid 607. This embodiment also reduces the liquid level by changing the shape, effectively reducing the swaying of the liquid during the operation of the cage. Furthermore, it uses the fluidity of the liquid to detect the off-center loading of the cage, thereby identifying the tilted guide rail and promptly reminding maintenance personnel to make adjustments.

[0022] The above description is merely a preferred embodiment of the present invention; it encompasses all the protection scope of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in the present invention, based on the technical solutions and improved concepts of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A construction hoist cage with off-center load adjustment function, comprising a guide rail frame (1) and a cage (2), characterized in that: The bottom of the cage (2) is fixedly connected to a bearing plate (3), and the bottom of the bearing plate (3) is fixedly connected to a bottom frame (4). A slide rail (5) is fixedly connected to the diagonal of the bottom frame (4), and the two slide rails (5) are arranged in a cross pattern. Slide grooves are provided on both sides of the two slide rails (5), and a balance block (7) is slidably connected in the slide groove. A screw threadedly connected to the balance block (7) is rotatably connected inside each slide groove, and the screw is driven by a drive motor. The off-center load detector (6) includes a dynamic detection disk (601) and multiple static detection tubes (602) that are fixedly connected to the side wall of the dynamic detection disk (601) at equal intervals. The multiple static detection tubes (602) are connected to the dynamic detection disk (601). The interior of the dynamic detection disk (601) and the static detection tubes (602) are filled with flowing liquid (607). A thin-film pressure sensor (605) is installed on the inner wall of each static detection tube (602). The thin-film pressure sensor (605) is set towards the center point of the dynamic detection disk (601). The off-center load detector (6) also includes an off-center load adjustment module that is signal-connected to the multiple thin-film pressure sensors (605). The off-center load adjustment module is signal-connected to multiple drive motors through a microcontroller.

2. The construction hoist cage with off-center load adjustment function according to claim 1, characterized in that: The liquid level of the flowing liquid (607) is flush with the center line of the thin-film pressure sensor (605), and the flowing liquid (607) is a high-viscosity liquid.

3. A construction hoist cage with off-center load adjustment function according to claim 1, characterized in that: Each of the static detection tubes (602) has an indicator light (608) fixedly connected to the end away from the dynamic detection disk (601) and connected to the signal of the thin film pressure sensor (605), and the static detection tubes (602) are made of transparent material.

4. A construction hoist cage with off-center load adjustment function according to claim 1, characterized in that: Each of the dynamic detection discs (601) has an electromagnet (603) fixedly embedded in the inner wall of the thin-film pressure sensor (605), and the inner wall of the static detection tube (602) is slidably connected to a pusher plate (604) that repels the electromagnet (603). The thin-film pressure sensor (605) is fixedly embedded in the side wall of the pusher plate (604). The static detection tube (602) has grooves on both sides of the electromagnet (603), and an elastic band (606) is fixedly connected between the inner wall of the groove and the pusher plate (604).

5. A construction hoist cage with off-center load adjustment function according to claim 4, characterized in that: The upper inner wall of the dynamic detection disk (601) is fixedly connected to two telescopic rods one (8) and two telescopic rods two (9) with the same structure and symmetrical distribution. The lower ends of both telescopic rods one (8) and two telescopic rods two (9) are fixedly connected to floats (10). An infrared laser emitter (11) is installed on the side wall of the telescopic rod one (8). A vertically arranged array photosensitive sensor (12) is installed on the side wall of the telescopic rod two (9). The center point of the array photosensitive sensor (12) is flush with the center point of the infrared laser emitter (11). The off-center detector (6) also includes a guide rail tilt detection module. The guide rail tilt detection module includes a start-up unit connected to the electromagnet (603) and a position marking unit connected to the array photosensitive sensor (12).

6. A construction hoist cage with off-center load adjustment function according to claim 5, characterized in that: When the multiple push plates (604) are moved to their maximum position away from the electromagnet (603), the liquid surface of the flowing liquid (607) is above the static detection tube (602), and the float (10) floats on the liquid surface of the flowing liquid (607).

7. A construction hoist cage with off-center load adjustment function according to claim 5, characterized in that: The float (10) is a hollow structure, and the density of the float (10) is less than the density of the flowing liquid (607).

8. A construction hoist cage with off-center load adjustment function according to claim 1, characterized in that: The upper surface of the support plate (3) is also inlaid with multiple station indicator lights (13), and the multiple station indicator lights (13) are distributed according to the two center lines and two diagonals of the support plate (3). Each balance block (7) is equipped with a position sensor, and the position sensor is connected to the multiple station indicator lights (13) by signal.

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