An adjustable support and method of adjusting the same

Abstract

This invention discloses an adjustable support frame and its adjustment method. The adjustable support frame includes two parallel and spaced support units, a first crossbeam and a second crossbeam connecting the two support units, rollers, and a telescopic adjustment mechanism. Each support unit includes a first support leg, a second support leg, a support beam, a support rod, and a sliding pair. By adjusting the distance between the first and second crossbeams through the telescopic adjustment mechanism and adjusting the bottom position of the support rod through the sliding pair, the height and inclination angle of the support beam can be adjusted. Furthermore, during the adjustment of height and inclination angle, the positions of the hinge points of the first and second support legs and the support beam remain unchanged, eliminating the need for sliding grooves on the support beam and improving its safety.

Description

Technical Field

[0001] This invention relates to an adjustable support and its adjustment method. Background Technology

[0002] Some equipment requires supports for support and transportation. For example, material conveyor belts need to be installed on frames. Since the height of the material conveyor belt needs to match the height of the material unloading device, the height of the frame often needs to be adjusted, and sometimes the slope of the conveyor belt also needs to be adjusted.

[0003] Existing support structures mostly employ a scissor brace structure, with two support rods hinged in the middle. The height of the top of the support rods is adjusted by changing the spacing between their bottoms. However, when the spacing between the bottoms of the support rods changes, the spacing at their tops also changes, leading to a shift in the support point's position. Typically, a groove is installed on the upper support beam, allowing the hinged joint at the top of the support rod to slide within the groove. This groove inevitably contains significant gaps, and the combination of these gaps, sliding friction, and the complex environment of the construction site can potentially affect the safety of the equipment above. Therefore, it is necessary to provide an adjustable support structure that allows for height and slope adjustments while maintaining a fixed support point. Summary of the Invention

[0004] This invention relates to an adjustable support and its adjustment method, which can adjust the height and slope of the support, and during the adjustment process, the support legs and the support beam only rotate without sliding.

[0005] To solve the above technical problems, the present invention includes the following technical solutions:

[0006] An adjustable support includes two parallel and spaced support units, a first crossbeam and a second crossbeam connecting the two support units together, rollers, and a telescopic adjustment mechanism.

[0007] The support unit includes a first support leg, a second support leg, a support beam, a support rod, and a sliding pair. The bottom of the first support leg is hinged to the first crossbeam, and the top is hinged to the first end of the support beam. The bottom of the second support leg is hinged to the second crossbeam, and the top is hinged to the second end of the support beam, and the second support leg is arranged in an X-shape with the first support leg. The top of the support rod is hinged to the support beam and the top of the second support leg at the same point. A sliding pair is provided on the first support leg, and the bottom of the support rod is hinged to the sliding pair. The sliding pair allows the bottom of the support rod to slide and lock along the length of the first support leg.

[0008] The first and second crossbeams connect the two support units into one unit. Rollers are provided at the ends of the first and second crossbeams. The telescopic adjustment mechanism is used to adjust the distance between the first and second crossbeams.

[0009] Furthermore, the telescopic adjustment mechanism includes a turntable, a threaded rod, and a nut; the turntable is disposed on the first crossbeam, the nut is disposed on the second crossbeam, the turntable is fixedly connected to one end of the threaded rod, and the threaded rod is threadedly connected to the nut.

[0010] Rotating the turntable causes the threaded rod to rotate, and the rotation between the threaded rod and the nut causes the nut to move along the length of the threaded rod, thereby adjusting the distance between the second crossbeam and the first crossbeam.

[0011] Furthermore, the telescopic adjustment mechanism includes a drive motor, a reduction gearbox, a threaded rod, and a nut; the drive motor is mounted on the first crossbeam and its shaft is connected to the reduction gearbox; one end of the threaded rod is provided with a gear, which meshes with the power output gear in the reduction gearbox; the nut is mounted on the second crossbeam, and the threaded rod is threadedly connected to the nut.

[0012] The rotation of the motor can drive the threaded rod to rotate, and the rotation between the threaded rod and the nut can cause the nut to move along the length of the threaded rod, thereby adjusting the distance between the second crossbeam and the first crossbeam.

[0013] Furthermore, an inclinometer is installed on the support beam to measure the angle between the support beam and the horizontal plane; a distance measuring instrument is also installed on the support beam to measure the height of the support beam.

[0014] Furthermore, the sliding pair includes a driving mechanism, which can control the sliding pair to drive the bottom of the support rod to move along the length direction of the first support leg;

[0015] The adjustable support also includes a controller, which can preset the target height and target tilt angle of the support beam; the controller is used to receive the measured tilt angle data of the support beam collected by the inclinometer and the measured height data of the support beam measured by the rangefinder; the controller can determine whether the received data matches the target data; the controller can control the drive motor to rotate to adjust the distance between the first crossbeam and the second crossbeam, and can also control the drive mechanism to move to adjust the position of the hinge point between the support rod and the sliding pair.

[0016] Accordingly, this application provides an adjustment method for the adjustable support described above, comprising the following steps:

[0017] Step 1: Determine the required target height H0 and target tilt angle θ0 of the support beam;

[0018] Step 2: Measure the actual height H1 and the actual inclination angle θ1 of the support beam;

[0019] Step 3: If the measured height and measured tilt angle match the target height and target tilt angle, the adjustable bracket does not need to be adjusted; if the tilt angle and / or height do not match, adjust the distance between the first and second crossbeams through the telescopic adjustment mechanism, and adjust the position of the bottom hinge point of the support rod through the sliding pair, thereby adjusting the height and tilt angle of the support beam until the height and tilt angle of the support beam match the target height and target tilt angle respectively.

[0020] Furthermore, the allowable height error ΔH and the allowable tilt angle error Δθ are determined;

[0021] When |H0-H1|≤△H, the measured height is determined to match the target height; when |H0-H1|>△H, the measured height is determined to not match the target height.

[0022] When |θ0-θ1|≤△θ, the measured tilt angle is determined to match the target tilt angle; when |θ0-θ1|>△θ, the measured tilt angle is determined to not match the target tilt angle.

[0023] Accordingly, this application provides another method for adjusting the adjustable bracket, comprising the following steps:

[0024] Step 1: Determine the required target height H0 and target tilt angle θ0 of the support beam, and input the target height H0 and target tilt angle θ0 into the controller;

[0025] Step 2: Measure the actual height H1 of the support beam in real time using a rangefinder, and measure the actual tilt angle θ1 of the support beam in real time using an inclinometer. The controller then determines whether the actual height of the support beam matches the target height and whether the actual tilt angle matches the target tilt angle.

[0026] If the tilt angle and / or height do not match, proceed to step three;

[0027] If the tilt angle and height are both matched, the adjustable bracket does not need to be adjusted;

[0028] Step 3: The controller calculates the distance L0 between the first and second crossbeams and the position W0 of the slider based on the target height and target tilt angle; the controller calculates the distance L1 between the first and second crossbeams and the position W1 of the slider based on the measured height and measured tilt angle; the controller controls the telescopic adjustment mechanism to adjust the distance L0-L1, and controls the drive mechanism to make the bottom hinge point of the support rod slide a distance W0-W1.

[0029] Furthermore, the controller is also connected to an alarm, and the adjustment method further includes the following steps:

[0030] Step 4: The controller verifies whether the measured height H1 after adjustment matches the target height and whether the measured tilt angle θ1 matches the target tilt angle. If they do not match, the controller will control the alarm to issue a warning message.

[0031] Furthermore, the height tolerance ΔH and tilt tolerance Δθ are set in the controller;

[0032] When |H0-H1|≤△H, the measured height is determined to match the target height; when |H0-H1|>△H, the measured height is determined to not match the target height.

[0033] When |θ0-θ1|≤△θ, the measured tilt angle is determined to match the target tilt angle; when |θ0-θ1|>△θ, the measured tilt angle is determined to not match the target tilt angle.

[0034] The present invention, by adopting the above technical solution, has the following advantages and positive effects compared with the prior art: The adjustable support provided in this embodiment can adjust the distance between the first and second crossbeams through a telescopic adjustment mechanism, and adjust the bottom position of the support rod through a sliding pair, thereby achieving the purpose of adjusting the height and inclination angle of the support beam. Furthermore, during the adjustment of height and inclination angle, the positions of the hinge points between the first and second support legs and the support beam remain unchanged. Compared with existing X-shaped support legs, there is no need to set a groove on the support beam, which can prevent debris from the construction site from entering the groove, improving equipment safety. In addition, by setting up a controller, inclinometer, rangefinder, drive mechanism, drive motor, etc., the height and inclination angle of the support beam can be automatically adjusted, realizing automated operation of support adjustment and improving construction efficiency. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the adjustable bracket in one embodiment of the present invention;

[0036] Figure 2 This is a front view of an adjustable bracket according to an embodiment of the present invention;

[0037] Figure 3 This is a schematic diagram illustrating the adjustment of the distance between the first and second crossbeams in one embodiment of the present invention.

[0038] Figure 4 This is a schematic diagram of the position of the hinge point of the sliding pair adjusting support rod in one embodiment of the present invention;

[0039] Figures 5 to 7 These are simplified schematic diagrams showing the adjustable bracket, the distance adjustment between the first and second crossbeams, and the position of the hinge point of the sliding pair adjustment support rod.

[0040] Figure 8 This is another schematic diagram illustrating the adjustment of the distance between the first crossbeam and the second crossbeam in one embodiment of the present invention;

[0041] Figure 9 for Figure 8 Simplified diagram;

[0042] Figure 10 This is another schematic diagram showing the position of the hinge point of the sliding pair adjusting support rod in one embodiment of the present invention;

[0043] Figure 11 for Figure 10 A simplified diagram.

[0044] The numbers in the diagram are as follows:

[0045] 10-Support unit; 11-First support leg; 12-Second support leg; 13-Support beam; 14-Support rod; 15-Sliding pair; 151-Guide rail; 152-Slider; 16-Roller support; 17-Roller;

[0046] 20 - First crossbeam; 21 - Second crossbeam;

[0047] 30 - Telescopic adjustment mechanism. Detailed Implementation

[0048] The adjustable bracket and its adjustment method provided by the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0049] Example 1

[0050] like Figure 1 As shown, this embodiment provides an adjustable bracket, which includes two parallel and spaced bracket units 10, a first crossbeam 20 and a second crossbeam 21 connecting the two bracket units 10 into one unit, and a telescopic adjustment mechanism 30.

[0051] Combination Figure 1 and Figure 2As shown, the support unit 10 includes a first support leg 11, a second support leg 12, a support beam 13, a support rod 14, and a sliding pair 15. The bottom of the first support leg 11 is hinged to the first crossbeam 20, and the top of the first support leg 11 is hinged to the first end of the support beam 13. The bottom of the second support leg 12 is hinged to the second crossbeam 21, and the top of the second support leg 12 is hinged to the second end of the support beam 13. The first support leg 11 and the second support leg 12 are arranged in an X-shape. It should be noted that although the first support leg 11 and the second support leg 12 are arranged in an X-shape, they are not in direct contact; they intersect spatially, not planarly. The top of the support rod 14 is hinged to the support beam 13 and the top of the second support leg 12 at the same point. A sliding pair 15 is provided on the first support leg 11, and the bottom of the support rod 14 is hinged to the sliding pair 15. The sliding pair 15 allows the bottom of the support rod 14 to slide and lock along the length direction of the first support leg 11. Rollers 17 are provided at the ends of the first and second crossbeams, and the telescopic adjustment mechanism 30 is used to adjust the distance between the first crossbeam 20 and the second crossbeam 21.

[0052] The first crossbeam 20 and the second crossbeam 21 connect the two support units 10 into one unit. Rollers 17 are provided at the ends of the first crossbeam 20 and the second crossbeam 21. The telescopic adjustment mechanism 30 is used to adjust the distance between the first crossbeam 20 and the second crossbeam 21. As an example, a set of rollers 17 is provided at each end of the first crossbeam 20, and a roller support 16 is provided at each end of the second crossbeam 21. The rollers 17 are located below the roller supports 16, and the bottom of the second support leg 12 is hinged to the roller supports 16.

[0053] It should be noted that the sliding pair 15 can be purchased directly. The sliding pair 15 includes a guide rail 151 and a slider 152. The guide rail 151 is fixed along the length direction of the first support leg 11, and the slider 152 is slidably connected to the guide rail 151. The end of the support rod 14 is hinged to the slider 152. The sliding pair 15 also includes a limiting structure that limits the movement range of the slider, and a locking structure that locks the slider to the guide rail. Preferably, the sliding pair 15 includes a driving mechanism that can control the slider 152 to move along the guide rail 151. The driving mechanism can be configured as needed. For example, the driving mechanism can include a motor drive or a hydraulic drive. When the motor drive is used, the slider is equipped with a gear and a motor, and the guide rail is equipped with a rack. The motor drives the gear to move along the length direction of the rack. When the hydraulic drive is used, a hydraulic cylinder is installed on the first support leg, and the end of the telescopic rod is hinged to the slider. The movement or locking of the slider is controlled by the extension and retraction of the hydraulic rod.

[0054] In one specific embodiment, the telescopic adjustment mechanism 30 includes a turntable, a threaded rod, and a nut. The turntable is disposed on a first crossbeam 20, and the nut is disposed on a second crossbeam 21. One end of the turntable is connected to the threaded rod, and the other end of the threaded rod is threadedly connected to the nut. Rotating the turntable can cause the threaded rod to rotate, and the rotation between the threaded rod and the nut can cause the nut to move along the length of the threaded rod, thereby adjusting the distance between the second crossbeam 21 and the first crossbeam 20.

[0055] In one specific embodiment, the telescopic adjustment mechanism 30 includes a drive motor, a reduction gearbox, a threaded rod, and a nut. The drive motor is mounted on the first crossbeam 20, and its shaft is connected to the reduction gearbox. The reduction gearbox primarily matches the high rotational speed of the drive motor shaft with the rotational speed required for threaded rod adjustment. One end of the threaded rod is equipped with a gear, which meshes with a power output gear in the reduction gearbox. The nut is mounted on the second crossbeam 21, and the threaded rod is threadedly connected to the nut. Controlling the motor's rotation drives the threaded rod to rotate. The rotation between the threaded rod and the nut allows the nut to move along the length of the threaded rod, thereby adjusting the distance between the second crossbeam 21 and the first crossbeam 20.

[0056] Combination Figure 2 and Figure 3 As shown, by using the telescopic adjustment mechanism 30 to reduce the distance between the second crossbeam 21 and the first crossbeam 20, the first end of the support beam 13 is significantly raised, creating a slope for the support beam 13. Combined with... Figure 3 and Figure 4 As shown, by adjusting the sliding joint 15, the bottom of the support rod 14 can slide upward along the first support leg 11, thereby raising the second end of the support beam 13 and bringing the support beam 13 horizontal. Combined with... Figure 2 and Figure 8 As shown, by adjusting the telescopic mechanism 30, the distance between the second crossbeam 21 and the first crossbeam 20 is increased, causing the first end of the support beam 13 to drop significantly, thus creating a slope for the support beam 13. Combined with... Figure 3 and Figure 4 As shown, by adjusting the sliding joint 15, the bottom of the support rod 14 can slide downwards along the first support leg 11, thereby lowering the second end of the support beam 13 and making the support beam 13 horizontal. For ease of understanding, as... Figures 5 to 7 , Figure 9 and Figure 11As shown, the hinge point at the bottom of the first support leg 11 is denoted as A, and the hinge point at the top is denoted as B. The hinge point at the bottom of the second support leg 12 is denoted as C, and the hinge point at the top is denoted as D. The hinge point at the bottom of the support rod 14 is denoted as E, and the hinge point at the top of the support rod 14 is also hinged to point D. When point C moves to point C1, the distance between the second crossbeam 21 and the first crossbeam 20 decreases. At the same time, point B moves to point B1, point D moves to point D1, and point E moves to point E1, causing the support beam 13 to be in an inclined state. By adjusting the sliding pair 15, the bottom of the support rod 14 can be moved from point E1 to point E2, while point D1 moves to point D2 and point B1 moves to point B2, causing the support beam 13 to be in a horizontal state. As point C moves to point C3, the distance between the second crossbeam 21 and the first crossbeam 20 increases. At the same time, point B moves to point B3, point D moves to point D3, and point E moves to point E3, causing the support beam 13 to be in an inclined state. By adjusting the sliding pair 15, the bottom of the support rod 14 can be moved from point E3 to point E4, while point D3 moves to point D4 and point B3 moves to point B4, so that the support beam 13 is in a horizontal state.

[0057] In one specific embodiment, an inclinometer is installed on the support beam 13 to measure the angle between the support beam 13 and the horizontal plane. The inclinometer can be an existing device. A rangefinder is also installed on the support beam 13 to measure its height. The rangefinder can be a laser rangefinder, infrared rangefinder, ultrasonic rangefinder, etc. The telescopic adjustment mechanism 30 includes a drive motor, a reduction gearbox, a threaded rod, and a nut. The sliding pair 15 includes a drive mechanism that controls the slider to move along the guide rail. The adjustable bracket also includes a controller. The controller can preset the target height H0 and target incline θ0 of the support beam 13. The controller receives the measured incline data collected by the inclinometer and the measured height data measured by the rangefinder, and determines whether the received measured height matches the target height and whether the measured incline matches the target incline. The controller can control the rotation and braking of the drive motor and the movement of the drive mechanism to adjust the slope and height of the support beam 13. The controller can also calculate the distance L0 between the first crossbeam 20 and the second crossbeam 21 and the position W0 of the slider based on the target height H0 and the target tilt angle θ0 of the support beam 13; the controller can also calculate the distance L1 between the first crossbeam 20 and the second crossbeam 21 and the position W1 of the slider based on the measured height and measured tilt angle of the support beam 13; furthermore, the controller controls the telescopic adjustment mechanism 30 to change the distance between the first crossbeam 20 and the second crossbeam 21 by L0-L1, and controls the drive mechanism to make the slider slide a distance W0-W1.

[0058] The adjustable support frame provided in this embodiment adjusts the distance between the first crossbeam 20 and the second crossbeam 21 via the telescopic adjustment mechanism 30, and adjusts the bottom position of the support rod via the sliding pair 15. This allows for adjustment of the height and inclination angle of the support beam. During the adjustment of height and inclination angle, the positions of the hinge points between the first and second support legs and the support beam remain unchanged. Compared to existing X-shaped support legs, there is no need to install grooves on the support beam, preventing debris (such as concrete) from entering the grooves and improving equipment safety. Furthermore, by incorporating a controller, inclinometer, rangefinder, drive mechanism, and drive motor, automatic adjustment of the support beam height and inclination angle can be achieved, automating the support frame adjustment process and improving construction efficiency.

[0059] Example 2

[0060] This embodiment provides an adjustment method for the adjustable bracket, as described below in conjunction with Embodiment 1. Figures 1 to 11 The adjustment method is further described below. The adjustment method includes the following steps:

[0061] Step 1: Determine the required target height H0 and target tilt angle θ0 of the support beam 13;

[0062] Step 2: Measure the actual height H1 and the actual tilt angle θ1 of the support beam 13;

[0063] Step 3: If the measured height and measured tilt angle match the target height and target tilt angle, the adjustable bracket does not need to be adjusted; if the tilt angle and / or height do not match, adjust the distance between the first crossbeam 20 and the second crossbeam 21 through the telescopic adjustment mechanism 30, and adjust the position of the bottom hinge point of the support rod 14 through the sliding pair 15, thereby adjusting the height and tilt angle of the support beam 13 until the height and tilt angle of the support beam 13 match the target height and target tilt angle respectively.

[0064] The measured height and tilt angle should match the target height and tilt angle. Strictly speaking, this means H1=H0 and θ1=θ0, but this increases the difficulty of adjusting the height and tilt angle. Preferably, allowable errors ΔH for height and Δθ for tilt angle are set. When |H0-H1|≤ΔH, the measured height is considered to match the target height; when |θ0-θ1|>ΔH, the measured height is considered to mismatch the target height; when |θ0-θ1|≤Δθ, the measured tilt angle is considered to match the target tilt angle; when |θ0-θ1|>Δ, the measured tilt angle is considered to mismatch the target tilt angle.

[0065] Example 3

[0066] This embodiment provides another method for adjusting the adjustable bracket, as described below in conjunction with Embodiment 1. Figures 1 to 11The adjustment method is further described below. The adjustment method includes the following steps:

[0067] Step 1: Determine the required target height H0 and target tilt angle θ0 of the support beam 13, and input the target height H0 and target tilt angle θ0 into the controller;

[0068] Step 2: Measure the actual height H1 of the support beam 13 in real time using a rangefinder, and measure the actual tilt angle θ1 of the support beam 13 in real time using an inclinometer. The controller determines whether the actual height of the support beam 13 matches the target height and whether the actual tilt angle matches the target tilt angle.

[0069] If the tilt angle and / or height do not match, proceed to step three;

[0070] If the tilt angle and height are both matched, the adjustable bracket does not need to be adjusted;

[0071] Step 3: The controller calculates the distance L0 between the first crossbeam 20 and the second crossbeam 21, and the position W0 of the slider, based on the target height and target tilt angle. The controller also calculates the distance L1 between the first crossbeam 20 and the second crossbeam 21, and the position W1 of the slider, based on the measured height and measured tilt angle. The controller controls the telescopic adjustment mechanism 30 to adjust the distance L0-L1, and controls the drive mechanism to slide the bottom hinge point of the support rod a distance W0-W1. The positive and negative values ​​of L0-L1 and W0-W1 represent the direction of movement.

[0072] Furthermore, the controller is also connected to an alarm, and the adjustment method further includes the following steps:

[0073] Step 4: The controller verifies whether the measured height H1 after adjustment matches the target height and whether the measured tilt angle θ1 matches the target tilt angle. If they do not match, the controller will control the alarm to issue a warning message.

[0074] Furthermore, allowable height error △H and allowable tilt angle error △θ are set;

[0075] When |H0-H1|≤△H, the measured height is determined to match the target height; when |H0-H1|>△H, the measured height is determined to not match the target height.

[0076] When |θ0-θ1|≤△θ, the measured tilt angle is determined to match the target tilt angle; when |θ0-θ1|>△θ, the measured tilt angle is determined to not match the target tilt angle.

[0077] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An adjustable bracket, characterized in that, It includes two parallel and spaced support units, a first crossbeam and a second crossbeam that connect the two support units into one unit, rollers, and a telescopic adjustment mechanism; The support unit includes a first support leg, a second support leg, a support beam, a support rod, and a sliding pair. The bottom of the first support leg is hinged to the first crossbeam, and the top is hinged to the first end of the support beam. The bottom of the second support leg is hinged to the second crossbeam, and the top is hinged to the second end of the support beam, and the second support leg is arranged in an X-shape with the first support leg. The top of the support rod is hinged to the support beam and the top of the second support leg at the same point. A sliding pair is provided on the first support leg, and the bottom of the support rod is hinged to the sliding pair. The sliding pair allows the bottom of the support rod to slide and lock along the length of the first support leg. The first and second crossbeams connect the two support units into one unit. Rollers are provided at the ends of the first and second crossbeams. The telescopic adjustment mechanism is used to adjust the distance between the first and second crossbeams.

2. The adjustable bracket as described in claim 1, characterized in that, The telescopic adjustment mechanism includes a turntable, a threaded rod, and a nut; the turntable is mounted on a first crossbeam, the nut is mounted on a second crossbeam, the turntable is fixedly connected to one end of the threaded rod, and the threaded rod is threadedly connected to the nut. Rotating the turntable causes the threaded rod to rotate, and the rotation between the threaded rod and the nut causes the nut to move along the length of the threaded rod, thereby adjusting the distance between the second crossbeam and the first crossbeam.

3. The adjustable bracket as described in claim 1, characterized in that, The telescopic adjustment mechanism includes a drive motor, a reduction gearbox, a threaded rod, and a nut; the drive motor is mounted on the first crossbeam and its shaft is connected to the reduction gearbox; one end of the threaded rod is provided with a gear, which meshes with the power output gear in the reduction gearbox; the nut is mounted on the second crossbeam, and the threaded rod is threadedly connected to the nut. The rotation of the motor can drive the threaded rod to rotate, and the rotation between the threaded rod and the nut can cause the nut to move along the length of the threaded rod, thereby adjusting the distance between the second crossbeam and the first crossbeam.

4. The adjustable bracket as described in claim 3, characterized in that, An inclinometer is installed on the support beam to measure the angle between the support beam and the horizontal plane; a distance measuring instrument is also installed on the support beam to measure the height of the support beam.

5. The adjustable bracket as described in claim 4, characterized in that, The sliding pair includes a driving mechanism, which can control the sliding pair to drive the bottom of the support rod to move along the length direction of the first support leg; The adjustable support also includes a controller, which can preset the target height and target tilt angle of the support beam; the controller is used to receive the measured tilt angle data of the support beam collected by the inclinometer and the measured height data of the support beam measured by the rangefinder; The controller can determine whether the received data matches the target data; the controller can control the drive motor to rotate to adjust the distance between the first crossbeam and the second crossbeam, and can also control the drive mechanism to move to adjust the position of the hinge point between the support rod and the sliding pair.

6. A method for adjusting the adjustable bracket as described in claim 1, characterized in that, Includes the following steps: Step 1: Determine the required target height H0 and target tilt angle θ0 of the support beam; Step 2: Measure the actual height H1 and the actual inclination angle θ1 of the support beam; Step 3: If the measured height and measured tilt angle match the target height and target tilt angle, the adjustable bracket does not need to be adjusted; if the tilt angle and / or height do not match, adjust the distance between the first and second crossbeams through the telescopic adjustment mechanism, and adjust the position of the bottom hinge point of the support rod through the sliding pair, thereby adjusting the height and tilt angle of the support beam until the height and tilt angle of the support beam match the target height and target tilt angle respectively.

7. The adjustment method of the adjustable bracket as described in claim 6, characterized in that, Determine the allowable height error ΔH and the allowable tilt angle error Δθ; When |H0-H1|≤△H, the measured height is determined to match the target height; when |H0-H1|>△H, the measured height is determined to not match the target height. When |θ0-θ1|≤△θ, the measured tilt angle is determined to match the target tilt angle; when |θ0-θ1|>△θ, the measured tilt angle is determined to not match the target tilt angle.

8. A method for adjusting the adjustable bracket as described in claim 5, characterized in that, Includes the following steps: Step 1: Determine the required target height H0 and target tilt angle θ0 of the support beam, and input the target height H0 and target tilt angle θ0 into the controller; Step 2: Measure the actual height H1 of the support beam in real time using a rangefinder, and measure the actual tilt angle θ1 of the support beam in real time using an inclinometer. The controller then determines whether the actual height of the support beam matches the target height and whether the actual tilt angle matches the target tilt angle. If the tilt angle and / or height do not match, proceed to step three; If the tilt angle and height are both matched, the adjustable bracket does not need to be adjusted; Step 3: The controller calculates the distance L0 between the first and second crossbeams and the position W0 of the slider based on the target height and target tilt angle; the controller calculates the distance L1 between the first and second crossbeams and the position W1 of the slider based on the measured height and measured tilt angle; the controller controls the telescopic adjustment mechanism to adjust the distance L0-L1, and controls the drive mechanism to make the bottom hinge point of the support rod slide a distance W0-W1.

9. The adjustment method of the adjustable bracket as described in claim 8, characterized in that, The controller is also connected to an alarm, and the adjustment method further includes the following steps: Step 4: The controller verifies whether the measured height H1 after adjustment matches the target height and whether the measured tilt angle θ1 matches the target tilt angle. If they do not match, the controller will control the alarm to issue a warning message.

10. The adjustment method of the adjustable bracket as described in claim 8, characterized in that, The height tolerance ΔH and tilt tolerance Δθ are set in the controller; When |H0-H1|≤△H, the measured height is determined to match the target height; when |H0-H1|>△H, the measured height is determined to not match the target height. When |θ0-θ1|≤△θ, the measured tilt angle is determined to match the target tilt angle; when |θ0-θ1|>△θ, the measured tilt angle is determined to not match the target tilt angle.

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