A lifting backboard rack structure with strong load-bearing capacity

Abstract

The present invention discloses a lifting backboard frame structure with strong bearing capacity, which includes a backboard and a basket, and also includes a fixing frame, a support frame and a lifting mechanism. The support frame is fixedly attached to the back of the backboard. The fixed end of the lifting mechanism is fixedly installed with the fixing frame, and the movable end of the lifting mechanism drives the support frame to drive the backboard to move vertically up and down. The fixing frame is used to connect with an external wall or a basketball stand to play a supporting role. By driving the backboard through the lifting mechanism to achieve vertical lifting, the device can be applicable to people of different heights, with wide applicability, and will not change the horizontal distance of the backboard, without the need to adjust the basketball stand or re-draw lines, with strong convenience. In addition, through the design of the first and second connectors and the slide rail, compared with the prior art, it has a greater bearing capacity for the force on the backboard and is applicable to the scenario requirements with large forces such as dunking.

Description

Technical Field

[0001] The present invention relates to the technical field of sports equipment, and particularly to a lifting backboard support structure with strong bearing capacity. Background Art

[0002] A basketball hoop is an essential equipment for a basketball court and is a kind of basketball sports equipment. Currently, the basketball hoops used are generally fixed at the middle positions at both ends of the basketball court in the form of standard height, and the height of the basketball hoop cannot be adjusted during use. Therefore, there are some differences among different applicable populations. For example, when used by teenagers and children, the standard height is too high, which affects the use and cannot be suitable for all types of people. Currently, there are also basketball hoops with adjustable backboard height on the market, but the disadvantages are that the lifting range is limited and the moment on the backboard during dunking is too large, causing serious damage to the backboard; in addition, there are some basketball hoops that can adjust the height of the basket, which use a lever form for up and down lifting. However, when adjusting the height of the backboard and the basket in this way, the lateral distance from the backboard to the column will also change accordingly. It makes a circular motion around the rotation point, so the boundary area of the basketball court will change, and it is also necessary to manually move the basketball hoop or re-draw the lines. Therefore, we propose a lifting backboard support structure with strong bearing capacity. Summary of the Invention

[0003] The purpose of the present invention is to provide a lifting backboard support structure with strong bearing capacity to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A lifting backboard support structure with strong bearing capacity, including a backboard and a basket, further including a fixed frame, a support frame, and a lifting structure. The support frame is fixedly attached to the back of the backboard. The fixed end of the lifting mechanism is fixedly installed with the fixed frame, and the movable end of the lifting mechanism drives the support frame to drive the backboard to move up and down. The fixed frame is used to connect with an external wall or a basketball hoop to play a supporting role.

[0005] Preferably, both sides of the front side wall of the fixed frame are fixedly connected with first sliding rails. A first slider and a second slider are respectively slidably connected on the two first sliding rails. The first slider on the same first sliding rail is above the second slider, and a first connecting member and a second connecting member are respectively fixedly connected to the side walls of the first slider and the second slider. The first slider and the second slider are respectively fixedly connected to the side wall of the support frame through the first connecting member and the second connecting member.

[0006] Preferably, the first connecting member and the second connecting member are fixedly arranged on the side wall of the support frame in a side-by-side manner.

[0007] Preferably, the first slider is fixedly connected to the upper end of the support frame through a first connecting member, and the second slider is fixedly connected to the lower end of the support frame through a second connecting member.

[0008] Preferably, the second slider is fixedly connected to the upper end of the support frame through a second connecting member. On both sides of the lower end of the support frame, force-receiving rods are fixedly connected through third connecting members. The upper ends of the force-receiving rods are fixedly connected to the second connecting member and the first connecting member in sequence from bottom to top for upward transmission and decomposition of the force received by the lower end of the backboard during a dunk.

[0009] Preferably, second slide rails are fixedly connected to the side walls of both sides of the support frame in a direction parallel to the first slide rail. Third sliders are slidably connected to the second slide rails. Support rods are fixedly connected to the side walls of both sides of the lower end of the fixed frame. The front ends of the support rods are fixedly connected to the side walls of the third sliders.

[0010] Preferably, a protective layer for anti-collision is coated on the lower side contour of the backboard.

[0011] Preferably, the lifting structure includes a lead screw, a motor, a drive box, and a collar. One side of the drive box is fixedly connected to the support frame. The lead screw is rotatably connected to the upper side of the drive box. The motor is fixedly installed on the side wall of the drive box. The output shaft of the motor is in transmission connection with the lower end of the lead screw. The collar is meshed and sleeved on the lead screw, and one side of the collar is fixedly connected to the fixed frame. The support frame and the backboard can move vertically up and down along with the lead screw.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The present invention can adjust the height of the backboard in the vertical direction through the lifting structure, so that the device can be suitable for people of different heights, and has a wide applicability.

[0014] 2. The present invention fixes the lower ends of the force-receiving rods to the lower end of the support frame through the third connecting members, and the upper ends of the force-receiving rods are fixedly connected to the second slider and the first slider through the second connecting member and the first connecting member in sequence from bottom to top. At this time, the positions of the first slider and the second slider are both in the upper end area of the backboard. The positions of the first slider and the second slider on the first slide rail are relatively concentrated, and the vertical movement range is larger, increasing the lifting range of the backboard; and the force-receiving rods play a role in assisting the force received by the lower end of the backboard. The force received by the lower end of the backboard during a dunk is upwardly transmitted and decomposed through the force-receiving rods, avoiding excessive force on the backboard during a dunk and damage, and increasing the service life of the backboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 Schematic diagram of the backboard moving downward structure of the present invention;

[0017] Figure 3 Schematic diagram of the back side structure of the backboard of the present invention;

[0018] Figure 4 Explosion schematic diagram of the overall structure of the present invention;

[0019] Figure 5 Explosion diagram of the first slide rail, force-bearing rod and support frame of the present invention;

[0020] Figure 6 Schematic diagram of the structure of the first slide rail, first slider, second slider, force-bearing rod and support frame of the present invention;

[0021] Figure 7 Schematic diagram of the structure of the fixing frame, support frame, collar and lead screw of the present invention;

[0022] Figure 8 Schematic diagram of the structure of the motor, drive box, gear set, collar and lead screw of the present invention;

[0023] Figure 9 Schematic diagram of the structure of the backboard, fixing frame, support frame, third slider, support rod and second slide rail of the present invention Figure Ⅰ ;

[0024] Figure 10 Schematic diagram of the structure of the backboard, fixing frame, support frame, third slider, support rod and second slide rail of the present invention Figure Ⅱ ;

[0025] Figure 11 Schematic diagram of the structure of the fixing frame, support frame, force-bearing rod and second slide rail of the present invention;

[0026] Figure 12 Of the present invention Figure 11 Enlarged view of part A;

[0027] Figure 13 Schematic diagram of the structure of the support frame, first slide rail, first slider, second slider, first connecting member and second connecting member of the present invention Figure Ⅰ ;

[0028] Figure 14 Schematic diagram of the structure of the support frame, first slide rail, first slider, second slider, first connecting member and second connecting member of the present invention Figure Ⅱ ;

[0029] Figure 15 Schematic diagram of the structure of the support frame, first slide rail, first slider, second slider, first connecting member and second connecting member of the present invention Figure Ⅲ ;

[0030] Figure 16 Structural schematic of the support frame, first slide rail, first slider, second slider, first connecting member and second connecting member of the present invention Figure Ⅳ ;

[0031] Figure 17 Simplified connection of the backboard, support frame and first slide rail of the present invention Figure Ⅰ ;

[0032] Figure 18 Simplified connection of the backboard, support frame and first slide rail of the present invention Figure Ⅱ ;

[0033] Figure 19 Simplified connection of the backboard, support frame and first slide rail of the present invention Figure Ⅲ ;

[0034] Figure 20 Simplified connection of the backboard, support frame and first slide rail of the present invention Figure Ⅳ ;

[0035] Figure 21 Schematic diagram I of the structure of the present invention installed on the basketball stand;

[0036] Figure 22 Schematic of the structure of the present invention installed on the basketball stand Figure Ⅱ 。

[0037] In the figure: 1, backboard, 101, basketball hoop, 2, fixed frame, 3, support frame, 4, lead screw, 5, motor, 6, drive box, 601, gear set, 7, collar, 8, first slide rail, 9, first slider, 10, second slider, 11, first connecting member, 12, second connecting member, 13, third connecting member, 14, stress rod, 15, second slide rail, 16, third slider, 17, support rod, 18, protective layer, 19, basketball stand. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figure 1 - 22 :

[0040] The present invention provides a technical solution: a lifting backboard frame structure with strong bearing capacity, including a backboard 1 and a basketball hoop 101, as Figure 1As shown, the basket 101 is fixed in the lower middle part of the backboard 1, and the middle part of the backboard 1 is made of glass, and the outline is spliced by steel rods. The specifications of the backboard 1 and the basket 101 are standard specifications, that is, the size of the backboard 1 is 180 cm in width and 105 cm in height, and the inner diameter of the basket 101 is 45 cm. It also includes a fixed frame 2, a support frame 3 and a lifting mechanism. The support frame 3 is fixedly attached to the back of the backboard 1, and the fixed end of the lifting mechanism is fixedly installed with the fixed frame 2, and the movable end of the lifting mechanism drives the support frame 3 to drive the backboard 1 to move up and down in the vertical direction. The fixed frame 2 is used to connect with an external wall or a basket frame 19 or an external steel structure or a self-buried, box-type frame, etc. to play a supporting role.

[0041] The lifting structure can be a retractable mechanism such as a hydraulic cylinder. Specifically, the lifting structure includes a screw rod 4, a motor 5, a drive box 6 and a ring sleeve 7. The support frame 3 and the outline (steel rod) of the backboard 1 can be connected by welding or bolts, so that the support frame 3 can be firmly attached to the back of the backboard 1. One side of the drive box 6 is fixedly connected to the support frame 3, and the screw rod 4 is rotatably connected to the upper side of the drive box 6. The motor 5 is fixedly installed on the side wall of the drive box 6, and the output shaft of the motor 5 is transmission-connected to the lower end of the screw rod 4. Figure 8 As shown, a gear set 601 is provided inside the driving box 6, and the gear set 601 includes two bevel gears of different sizes, and the two bevel gears are vertically meshed. The larger bevel gear is fixedly sleeved on the lower end of the screw rod 4, and the smaller bevel gear is fixedly sleeved on the output shaft of the motor 5. When the motor 5 is started, the output shaft of the motor 5 rotates with the two bevel gears, thereby driving the screw rod 4 to rotate. When the gear set 601 transmits the rotation of the output shaft of the motor 5 to the screw rod 4, it decelerates the screw rod 4, thereby realizing the slow movement of the backboard 1. The motor 5 can be a stepping motor, a servo motor, or an ordinary motor with a commutation chip, and its power supply voltage is also Limited to the conventional 220V or 380V, a motor that can be controlled to perform forward and reverse rotation is sufficient. The output shaft of the motor 5 can rotate forward and backward, so the output shaft of the motor 5 can rotate forward and backward with the screw rod 4, so that the backboard 1 can be moved upward or downward. The ring sleeve 7 is meshed and sleeved on the screw rod 4, and one side of the ring sleeve 7 is fixedly connected to the fixed frame 2. The support frame 3 and the backboard 1 can move vertically up and down with the screw rod 4. The inner wall of the ring sleeve 7 is provided with an internal thread, and the internal thread is adapted to the external thread on the screw rod 4. Therefore, when the screw rod 4 rotates, the ring sleeve 7 and the screw rod 4 slide relative to each other, causing the screw rod 4 to move up and down with the support frame 3 and the backboard 1.

[0042] It should be noted that the lifting structure here is not limited to electric or hydraulic forms. For the lightweight backboard 1, a manual form can also be adopted, as long as the support frame 3 and the backboard 1 can be controlled to move up and down. For example, a form without a motor, with a handle installed at the lower end of the lead screw 4 and rotated manually to achieve up and down lifting, also belongs to the scope of the lifting structure of this application. In addition, other ways to achieve up and down lifting by simple transformation of existing technologies such as connecting rods, curved rods, turbines, and worms also fall within the scope of this application and will not be elaborated here.

[0043] To effectively improve the stability of the backboard 1 and the support frame 3 during up and down lifting, specifically, on both sides of the front side wall of the fixed frame 2, first slide rails 8 are fixedly connected. The two first slide rails 8 are fixed to the fixed frame 2 by bolts and are installed in a parallel form. A first slider 9 and a second slider 10 are slidably connected to each of the two first slide rails 8. The first slider 9 on the same first slide rail 8 is above the second slider 10. On the side walls of the first slider 9 and the second slider 10, a first connecting member 11 and a second connecting member 12 are respectively fixedly connected. The first slider 9 and the second slider 10 are respectively fixedly connected to the side wall of the support frame 3 through the first connecting member 11 and the second connecting member 12. The first connecting member 11 and the second connecting member 12 can be in existing forms such as steel plate stampings and castings, with connection screw holes opened on the side walls for connection. According to the connection positions, the first connecting member 11 and the second connecting member 12 can be manufactured into different shapes. Screw holes are also opened at the connection points of the first slider 9, the second slider 10, and the support frame 3. Then, through additional bolts, the first connecting member 11 and the second connecting member 12 are fixedly installed to achieve the connection and fixation between the connection components.

[0044] When adjusting the height of the backboard 1, start the motor 5 to drive the lead screw 4 to rotate. At this time, the lead screw 4 drives the support frame 3 and the backboard 1 to move up and down. At the same time, the first slider 9 and the second slider 10 slide on the first slide rail 8, playing a role in guiding the movement of the backboard 1 to make the backboard 1 move vertically. And when the backboard 1 is fixed, the first slider 9 and the second slider 10 are stationary on the first slide rail 8, cooperating with the first connecting member 11 and the second connecting member 12 to support the backboard 1, so that when the backboard 1 is lifted to any height, the backboard 1 can be in a stable state.

[0045] To increase the lifting range of the backboard 1 or avoid excessive force and damage to the lower end of the backboard 1 during a dunk, specifically, the first connecting member 11 and the second connecting member 12 are fixed to the side wall of the support frame 3 in a side-by-side form. Specifically, the first slider 9 is fixedly connected to the upper end of the support frame 3 through the first connecting member 11, and the second slider 10 is fixedly connected to the lower end of the support frame 3 through the second connecting member 12. This structure can lead to Embodiment 1 and Embodiment 2, where the basic style of Embodiment 1 is as Figures 13 - 14 and 17. The first slider 9 is connected to the back of the upper end of the backboard 1 through the first connecting member 11, and the second slider 10 is connected to the back of the lower end of the backboard 1 through the second connecting member 12, playing a role in supporting the backboard 1 (as Figure 13 shown), as Figure 17 shown, the "JT" in it marks the direction of the force on the backboard 1 during a dunk. Then, when the backboard 1 is subjected to the force of a dunk, the first slider 9 pulls the back of the upper end of the backboard 1 through the first connecting member 11, and the second slider 10 abuts against the back of the lower end of the backboard 1 through the second connecting member 12, avoiding damage to the lower end of the backboard 1 due to backward deformation under force and increasing the stability of the backboard 1.

[0046] The form of Embodiment 2 is Figure 15 、 16 、18. It can be seen from the figure that the second slider 10 of Embodiment 2 is closer to the first slider 9, so that the length of the first slide rail 8 can be shorter. That is, when adjusting within the same range, the required length of the first slide rail 8 in Embodiment 2 is shorter, thus the cost is lower, and the requirements for the installation environment are also lower. It is also more suitable for suspended installation or installation on the basketball stand 19. That is, to increase the lifting range of the backboard 1 on the fixing frame 2, the first slider 9 is fixedly connected to the upper end of the support frame 3 through the first connecting member 11, and the second slider 10 is fixedly connected to a non-upper and lower extreme position of the support frame 3 through the second connecting member 12, as Figure 18 shown. The first slider 9 and the second slider 10 are respectively connected to the back of the upper end of the backboard 1 through the first connecting member 11 and the second connecting member 12 (at this time, the first slider 9 and the second slider 10 can also be regarded as a whole). The positions of the first slider 9 and the second slider 10 are both located in the upper region of the backboard 1. The positions of the first slider 9 and the second slider 10 on the first slide rail 8 are more concentrated, and the up and down movement range is larger, increasing the lifting range of the backboard 1.

[0047] Embodiment Three:

[0048] From Embodiment 1's Figure 17It can be seen that in order to avoid excessive dunking torque on the lower end of the backboard 1 during the dunking process and cause damage to the backboard 1, the first slider 9 pulls the back of the upper end of the backboard 1 through the first connecting member 11, and the second slider 10 abuts against the back of the lower end of the backboard 1 through the second connecting member 12. Although it plays a role in stabilizing the backboard 1, the lifting range of the backboard 1 is limited. At this time, if you want to increase the lifting range of the backboard 1, you need to extend the first slide rail 8 downward (such as Figure 17 shown by the dotted line), so that the lower end of the first slide rail 8 will be at a lower height, that is, a longer slide rail is required, which is likely to affect pedestrians below. This method has higher requirements for the installation environment;

[0049] In addition, in order to increase the lifting range of the backboard 1 on the fixing frame 2, the first slider 9 is connected to the back of the upper end of the backboard 1 through the first connecting member 11, and the second slider 10 is connected to the back of the backboard 1 through the second connecting member 12 and adjusted upward to a position close to the first slider 9 (that is, the situation of Embodiment 2 is as Figure 18 shown). At this time, without increasing the length of the first slide rail 8, the lifting range of the backboard 1 is increased. However, when dunking, there is no support device at the lower end of the backboard 1. Therefore, the torque on the backboard 1 is too large, causing the lower end of the backboard 1 to deform backward and be damaged;

[0050] So as Figures 3 - 6 shown in Figures 19, on the basis of Embodiment 2, in order to take into account the two problems of increasing the lifting range of the backboard 1 and avoiding excessive force on the lower end of the backboard 1 during dunking, specifically, the second slider 10 is fixedly connected to the upper end of the support frame 3 through the second connecting member 12. Both sides of the lower end of the support frame 3 are fixedly connected with force-bearing rods 14 through third connecting members 13. The third connecting member 13 is also a steel plate stamping part, and there are connecting screw holes on the side wall. The connection form and function of the third connecting member 13 are the same as those of the first connecting member 11 and the second connecting member 12. The upper end of the force-bearing rod 14 is fixedly connected to the second connecting member 12 and the first connecting member 11 from bottom to top for upward transmission and decomposition of the force received by the lower end of the backboard 1 during dunking;

[0051] As Figure 19 shown, the second slider 10 is connected to the back of the upper end of the backboard 1 through the second connecting member 12. By adding the force-bearing rod 14 to connect the lower ends of the first slider 9 and the support frame 3, the force-bearing rod 14 is cross-fixedly connected to the second connecting member 12. At this time, the positions of the first slider 9 and the second slider 10 are both in the upper region of the backboard 1. The positions of the first slider 9 and the second slider 10 on the first slide rail 8 are more concentrated, and the up and down movement range is larger, increasing the lifting range of the backboard 1. And during the dunking process, after the lower end of the backboard 1 is stressed, the force-bearing rod 14 transmits the force received by the backboard 1 upward and decomposes it, avoiding the lower end of the backboard 1 from being damaged due to backward deformation of the force, and increasing the stability of the backboard 1

[0052] In addition, as Figure 19 shown, the longer the shaded part (the part between the first connecting member 11 and the second connecting member 12) at the upper end of the stress rod 14 is, the better the force on the backboard 1 during a dunk, and the more stable the backboard 1 is. The way to extend the shaded part at the upper end of the stress rod 14 can be: on the basis of what is shown in Figure 19 , move the position of the first slider 9 upward to make the first slider 9 away from the second slider 10 (the first slide rail 8 can be extended upward, and the extended first slide rail 8 will not affect the pedestrians below), and use a longer stress rod 14 to connect the first slider 9 and the lower end of the support frame 3. Of course, the second slider 10 can also be moved downward, but this will affect the adjustment range.

[0053] Embodiment 4:

[0054] As Figures 9 - 12 and 20 shown, on the basis of Embodiment 3, in order to further enable the lower end of the backboard 1 to withstand a greater dunking force and increase the stability of the backboard 1. Specifically, second slide rails 15 are fixedly connected to the two side walls of the support frame 3 along the direction parallel to the first slide rail 8. Third sliders 16 are slidably connected to the second slide rails 15. Struts 17 are fixedly connected to the two side walls at the lower ends of the fixed frame 2. The front ends of the struts 17 are fixedly connected to the side walls of the third sliders 16. The added struts 17 can realize that the lower end of the fixed frame 2 always supports the support frame 3 (i.e., equivalent to the backboard 1), further support the backboard 1, and achieve better force on the backboard 1. And after the third slider 16 is fixedly connected to the strut 17, the third slider 16 slides on the second slide rail 15, avoiding the interference of the strut 17 on the lifting of the support frame 3 and the backboard 1.

[0055] As Figures 1 - 2 shown, in order to prevent pedestrians from being injured after hitting the lower end of the backboard 1, specifically, a protective layer 18 for anti-collision is coated on the lower side contour of the backboard 1. The material of the protective layer 18 can be soft materials such as rubber and plastic.

[0056] In addition, several embodiments of the above structure of the present application can be directly installed on the wall without the lower basketball stand 19 below, or can be installed in a conventional form through the basketball stand 19 as Figure 21 and 22 .

[0057] Working principle: An installation seat is provided at the rear end of the fixed frame 2. The fixed frame 2 is fixed through the installation seat, so that the fixed frame 2 suspends the backboard 1 at a high place. Then, the motor 5 is electrically connected to an external power supply, and the height of the backboard 1 is adjusted by controlling the start of the motor 5. After the height of the backboard 1 is adjusted appropriately, the device can be used for basketball activities, suitable for dunking operations of various groups of people.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting backboard frame structure with strong bearing capacity, comprising a backboard (1) and a basket (101), characterized in that: It further includes a fixing frame (2), a supporting frame (3) and a lifting mechanism. The supporting frame (3) is fixedly attached to the back of the backboard (1). The fixed end of the lifting mechanism is fixedly installed with the fixing frame (2), and the movable end of the lifting mechanism drives the supporting frame (3) to drive the backboard (1) to move up and down. The fixing frame (2) is used to connect with an external wall or a basketball stand (19) to play a supporting role. On both sides of the front side wall of the fixing frame (2), first slide rails (8) are fixedly connected. A first slider (9) and a second slider (10) are slidably connected to each of the two first slide rails (8). The first slider (9) on the same first slide rail (8) is above the second slider (10). First connecting members (11) and second connecting members (12) are respectively fixedly connected to the side walls of the first slider (9) and the second slider (10). The first slider (9) and the second slider (10) are respectively fixedly connected to the side wall of the supporting frame (3) through the first connecting member (11) and the second connecting member (12). The second slider (10) is fixedly connected to the upper end of the supporting frame (3) through the second connecting member (12). On both sides of the lower end of the supporting frame (3), force-bearing rods (14) are fixedly connected through third connecting members (13). The upper ends of the force-bearing rods (14) are fixedly connected to the second connecting member (12) and the first connecting member (11) in sequence from bottom to top for upward transmission and decomposition of the acting force received by the lower end of the backboard (1) during a dunk. The positions of the first slider (9) and the second slider (10) are both located in the upper end area of the backboard (1). The force-bearing rod (14) connects the first slider (9) and the lower end of the supporting frame (3), and the force-bearing rod (14) is cross-fixedly connected to the second connecting member (12).

2. The structure of a lifting backboard frame with strong load-bearing capacity according to claim 1, wherein: The first connecting member (11) and the second connecting member (12) are fixedly arranged on the side wall of the supporting frame (3) in a side-by-side manner.

3. The structure of a lifting backboard rack with strong bearing capacity according to claim 2, wherein: The first slider (9) is fixedly connected to the upper end of the supporting frame (3) through the first connecting member (11), and the second slider (10) is fixedly connected to the lower end of the supporting frame (3) through the second connecting member (12).

4. A lifting backboard frame structure with strong bearing capacity according to claim 1, characterized in that: On both side walls of the supporting frame (3), second slide rails (15) are fixedly connected in a direction parallel to the first slide rail (8). Third sliders (16) are slidably connected to the second slide rails (15). On both side walls of the lower end of the fixing frame (2), support rods (17) are fixedly connected. The front end of the support rod (17) is fixedly connected to the side wall of the third slider (16).

5. A lifting backboard frame structure with strong bearing capacity according to any one of claims 1-4, characterized in that: A protective layer (18) for anti-collision is coated on the lower side contour of the backboard (1).

6. A lifting backboard frame structure with strong bearing capacity according to any one of claims 1-4, characterized in that: The lifting structure includes a lead screw (4), a motor (5), a drive box (6), and a collar (7). One side of the drive box (6) is fixedly connected to the support frame (3). The lead screw (4) is rotatably connected to the upper side of the drive box (6). The motor (5) is fixedly installed on the side wall of the drive box (6). The output shaft of the motor (5) is in transmission connection with the lower end of the lead screw (4). The collar (7) is meshingly sleeved on the lead screw (4), and one side of the collar (7) is fixedly connected to the fixed frame (2). The support frame (3) and the backboard (1) can move vertically up and down along with the lead screw (4).

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