Rigid stage supporting platform

Abstract

The utility model discloses a rigid stage supporting platform, which relates to the technical field of stage supporting platform design and comprises a supporting mounting plate, a supporting height adjusting unit and a height adjusting power component. The supporting mounting plate is fixedly connected with an external stage platform through platform mounting columns, a supporting height adjusting unit is arranged on the lower side surface of the supporting mounting plate, a height adjusting power assembly is arranged on a supporting circular plate in the supporting height adjusting unit, and carrying and moving are more convenient; the supporting platform can be carried and moved by saving time and manpower, the supporting platform is more convenient to disassemble, the height can be adjusted, the stage platform can be installed in different environments, stage height adjustment is more convenient, time is saved, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of stage support platform design, in particular to a rigid stage support platform. Background Technique

[0002] A stage is a space provided for actors' performances in a theater, which can focus the audience's attention on the actors' performances and obtain an ideal viewing effect. The stage usually consists of one or more platforms, some of which can be lifted. The types of stages include proscenium stages, extended stages, circular stages and rotating stages. During the stage construction process, in order to better install and support the stage, a rigid stage support platform is required.

[0003] The existing rigid stage support platforms are not convenient to carry and move. A large amount of time and manpower are required to carry and move the support platform. It is not very convenient to disassemble the support platform. In order to adapt to different positions, the stage construction requires different heights, and it is not convenient to adjust the stage height, which takes a lot of time and affects the installation efficiency. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the existing defects and provide a rigid stage support platform, which is more convenient to carry and move, can save time and manpower for carrying and moving the support platform, is more convenient to disassemble the support platform, can adjust the height to install the stage platform in different environments, is more convenient to adjust the stage height, saves time and improves the installation efficiency, and can effectively solve the problems in the background technique.

[0005] To achieve the above object, the utility model provides the following technical solution: A rigid stage support platform, comprising a support mounting plate, a support height adjustment unit and a height adjustment power assembly;

[0006] Support mounting plate: Four corners of the upper surface are respectively provided with a platform mounting column. The support mounting plate is fixedly connected with an external stage platform through the platform mounting columns. The lower surface of the support mounting plate is provided with a support height adjustment unit, and a height adjustment power assembly is arranged on the support circular plate in the support height adjustment unit;

[0007] Support height adjustment unit: It includes a support circular plate, a rigid support rod, a limit cylinder, an extension cylinder, and a height adjustment support frame. Four corners of the lower surface of the support mounting plate are respectively provided with a support circular plate. The lower surface of each support circular plate is respectively provided with a plurality of friction protrusions arranged in an annular array. The upper surface of each support circular plate is respectively provided with a rigid support rod. The left and right side surfaces of each rigid support rod are respectively provided with a triangular fixing seat. Each rigid support rod is respectively fixedly connected to the corresponding support circular plate through the triangular fixing seat. A cavity is respectively opened in each rigid support rod. The bottom end surface of the cavity in each rigid support rod is respectively fixedly connected with a limit cylinder. A round hole is respectively opened on the upper surface of each rigid support rod, and each round hole respectively extends into the cavity. An extension cylinder respectively passes through each round hole. A limit circular groove is respectively opened on the lower end face of each extension cylinder, and each limit cylinder is respectively arranged in the corresponding limit circular groove. The upper end faces of the four extension cylinders are fixedly connected with a height adjustment support frame. The height adjustment support frame is fixedly connected to the support mounting plate through bolts. The height adjustment support frame adopts a cross-shaped structure.

[0008] The support mounting plate is used to fixedly install the device. The platform mounting column is used to install the stage flat plate, facilitating support and use. The height adjustment power component is used to provide power for height adjustment. The support circular plate is used to support the device. The rigid support rod is used to fix the limit cylinder. The limit cylinder is used to make the movement of the extension cylinder more stable. The extension cylinder is used to adjust the height, facilitating support and use. The extension cylinder is also used to fix the height adjustment support frame. The height adjustment support frame is used to fix the support mounting plate, thereby performing support adjustment and facilitating height adjustment.

[0009] Furthermore, the support height adjustment unit further includes a stable moving slider and an auxiliary sliding column. Slide grooves are respectively opened on the left and right side surfaces of the hollow cavity in each rigid support rod. An auxiliary sliding column is respectively fixedly connected in each slide groove. A stable moving slider is respectively slidably connected in each slide groove. The sliding holes on each stable moving slider are slidably connected to the corresponding auxiliary sliding column. The positions of each extension cylinder located in the cavity are respectively fixedly connected to the corresponding stable moving slider through a support block. Each extension cylinder is slidably connected in the corresponding cavity.

[0010] The auxiliary sliding column is used to make the movement of the stable moving slider more stable. The stable moving slider moves to drive the extension cylinder to move, thereby making the movement of the extension cylinder more stable, and thus adjusting the height, facilitating support and use.

[0011] Furthermore, the support height adjustment unit further includes a connecting support block and a fastening arc plate. A connecting support block is fixedly connected to the left surface of each rigid support rod, and each connecting support block is arranged at the upper side of the rigid support rod. The screw holes on each rigid support rod are threadedly connected to corresponding bolts. Each bolt is connected to the fastening arc plate through a rotating seat, and each bolt is rotatably connected within the corresponding rotating seat. A plurality of friction strips in a linear array are respectively arranged on one side of each fastening arc plate close to the extended cylinder, and each fastening arc plate is in contact with the corresponding extended cylinder.

[0012] The connecting support block is used to fix the fastening arc plate, and the fastening arc plate is used to support the extended cylinder after the height is adjusted, so that the support of the extended cylinder is more stable, and thus it can be used for support.

[0013] Furthermore, the support height adjustment unit further includes a rigid auxiliary support frame. Rigid auxiliary support frames are respectively arranged on the front, back, left, and right surfaces of the four rigid support rods, and the front and back end faces of each rigid auxiliary support frame are fixedly connected to the corresponding rigid support rod.

[0014] The rigid auxiliary support frame is used to increase the strength of the support platform and make the support of the device more stable, thus facilitating the support device.

[0015] Furthermore, the height adjustment power assembly includes a support connection frame fixing buckle, a support connection frame, a push connecting plate, and an adjustment cross bar. A support connection frame fixing buckle is fixedly connected to the position between the front, back, left, and right of the four rigid support rods on each support circular plate. A support connection frame is fixedly connected to the four support connection frame fixing buckles. Rectangular sliding holes are respectively opened on the front, back, left, and right surfaces of the four rigid support rods corresponding to one side, and each rectangular sliding hole extends into the cavity. An adjustment cross bar is respectively arranged at the front, back, left, and right positions of the four rigid support rods. Moving bumps are respectively arranged on the opposite side surfaces of the two adjustment cross bars corresponding to the positions of the four rectangular sliding holes. Each moving bump passes through the rectangular sliding hole and is fixedly connected to the corresponding extended cylinder. Each moving bump is slidably connected within the corresponding rectangular sliding hole. A push connecting plate is fixedly connected between the front and back of the two adjustment cross bars, and the push connecting plate corresponds to the support connection frame.

[0016] The support connection frame fixing buckle is used to fix the support connection frame, the support connection frame is used to fix the height adjustment hydraulic cylinder, the push connecting plate is used to push the adjustment cross bar to move, and the adjustment cross bar is used to drive the extended cylinder to move, so as to perform height adjustment and facilitate height adjustment.

[0017] Further, the height adjustment power assembly further includes auxiliary support rods and a height adjustment hydraulic cylinder. A height adjustment hydraulic cylinder is provided on the upper surface of the support connection frame. The extension end of the height adjustment hydraulic cylinder is fixedly connected to the corresponding push connection plate. Auxiliary support rods are respectively provided on the upper surface of the support connection frame on the left and right sides of the height adjustment hydraulic cylinder. The two auxiliary support rods are in contact with the corresponding height adjustment hydraulic cylinder. The input end of the height adjustment hydraulic cylinder is electrically connected to the output end of an external power supply through an external control switch group.

[0018] The auxiliary support rods are used to support the height adjustment hydraulic cylinder. The height adjustment hydraulic cylinder is activated to adjust the height, thereby providing power for height adjustment.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. For this stage rigid support platform, the following advantages are available: There is a support height adjustment unit. The support circular plate is used to support the device. The rigid support rod is used to fix the limit cylinder. The limit cylinder is used to make the extension cylinder move more stably. The extension cylinder is used to adjust the height for convenient support use. The extension cylinder is also used to fix the height adjustment support frame. The height adjustment support frame is used to fix the support mounting plate. The auxiliary sliding column is used to make the stable moving slider move more stably. The stable moving slider moves to drive the extension cylinder to move, thereby making the extension cylinder move more stably. The connecting support block is used to fix the fastening arc plate. The fastening arc plate is used to support the extension cylinder after height adjustment, thereby making the support of the extension cylinder more stable. The rigid auxiliary support frame is used to increase the strength of the support platform for height adjustment support use;

[0021] 2. For this stage rigid support platform, the following advantages are available: There is a height adjustment power assembly. The support connection frame fixing buckle is used to fix the support connection frame. The support connection frame is used to fix the height adjustment hydraulic cylinder. The push connection plate is used to push the adjustment cross bar to move. The adjustment cross bar is used to drive the extension cylinder to move. The auxiliary support rods are used to support the height adjustment hydraulic cylinder. The height adjustment hydraulic cylinder is activated to provide power for height adjustment;

[0022] 3. For this stage rigid support platform, the following advantages are available: It is more convenient to carry and move, which can save time and labor for carrying and moving the support platform. It is more convenient to disassemble the support platform. The height can be adjusted to install the stage platform in different environments. The height adjustment of the stage is more convenient, saving time and improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a front structural schematic diagram of the present utility model;

[0024] Figure 2 This is a partial sectional view structural diagram of the support height adjustment unit of the utility model;

[0025] Figure 3 This is a front sectional view structural diagram of the utility model.

[0026] In the figure: 1 support mounting plate, 2 platform mounting column, 3 support height adjustment unit, 31 support circular plate, 32 rigid support rod, 33 limit cylinder, 34 extension cylinder, 35 stable moving slider, 36 auxiliary sliding column, 37 connecting support block, 38 fastening arc plate, 39 height adjustment support frame, 310 rigid auxiliary support frame, 4 height adjustment power assembly, 41 support connecting frame fixing buckle, 42 support connecting frame, 43 auxiliary support rod, 44 height adjustment hydraulic cylinder, 45 pushing connecting plate, 46 adjusting cross bar. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1-3 , this embodiment provides a technical solution: a rigid support platform for a stage, including a support mounting plate 1, a support height adjustment unit 3 and a height adjustment power assembly 4;

[0029] Support mounting plate 1: A platform mounting column 2 is respectively arranged at the four corners of the upper side surface. The support mounting plate 1 is fixedly connected to the external stage platform through the platform mounting column 2. The support height adjustment unit 3 is arranged on the lower side surface of the support mounting plate 1, and the height adjustment power assembly 4 is arranged on the support circular plate 31 in the support height adjustment unit 3;

[0030] Support height adjustment unit 3: It includes a support circular plate 31, a rigid support rod 32, a limit cylinder 33, an extension cylinder 34 and a height adjustment support frame 39. Four corners of the lower surface of the support mounting plate 1 are respectively provided with a support circular plate 31. The lower surface of each support circular plate 31 is respectively provided with a plurality of friction protrusions arranged in an annular array. The upper surface of each support circular plate 31 is respectively provided with a rigid support rod 32. Triangular fixing seats are respectively arranged on the left and right side surfaces of each rigid support rod 32. Each rigid support rod 32 is fixedly connected to the corresponding support circular plate 31 through the triangular fixing seat. A cavity is respectively opened in each rigid support rod 32. The bottom end surface of the cavity in each rigid support rod 32 is respectively fixedly connected with a limit cylinder 33. A circular hole is respectively opened on the upper surface of each rigid support rod 32. Each circular hole extends into the cavity. An extension cylinder 34 respectively passes through each circular hole. A limit circular groove is respectively opened at the lower end end surface of each extension cylinder 34. Each limit cylinder 33 is respectively arranged in the corresponding limit circular groove. The upper end end surfaces of the four extension cylinders 34 are fixedly connected with a height adjustment support frame 39. The height adjustment support frame 39 is fixedly connected to the support mounting plate 1 through bolts. The height adjustment support frame 39 adopts a cross-shaped structure.

[0031] The support mounting plate 1 is used for fixedly installing the device. The platform mounting column 2 is used for installing the stage flat plate, facilitating support and use. The height adjustment power assembly 4 is used to provide power for height adjustment. The support circular plate 31 is used to support the device. The rigid support rod 32 is used to fix the limit cylinder 33. The limit cylinder 33 is used to make the movement of the extension cylinder 34 more stable. The extension cylinder 34 is used to adjust the height, facilitating support and use. The extension cylinder 34 is also used to fix the height adjustment support frame 39. The height adjustment support frame 39 is used to fix the support mounting plate 1, thereby performing support adjustment and facilitating height adjustment.

[0032] The support height adjustment unit 3 further includes a stable moving slider 35 and an auxiliary sliding column 36. Chutes are respectively opened on the left and right side surfaces of the hollow cavity in each rigid support rod 32. An auxiliary sliding column 36 is respectively fixedly connected in each chute. A stable moving slider 35 is respectively slidably connected in each chute. The sliding holes on each stable moving slider 35 are slidably connected to the corresponding auxiliary sliding column 36. The positions of each extension cylinder 34 located in the cavity are respectively fixedly connected to the corresponding stable moving slider 35 through support blocks. Each extension cylinder 34 is slidably connected in the corresponding cavity.

[0033] The auxiliary sliding column 36 is used to make the movement of the stable moving slider 35 more stable. The stable moving slider 35 moves to drive the extension cylinder 34 to move, thereby making the movement of the extension cylinder 34 more stable, and thus adjusting the height, facilitating support and use.

[0034] The support height adjustment unit 3 further includes a connecting support block 37 and a fastening arc plate 38. A connecting support block 37 is fixedly connected to the left surface of each rigid support rod 32. Each connecting support block 37 is arranged at the upper side of the rigid support rod 32. The screw holes on each rigid support rod 32 are threadedly connected with corresponding bolts. Each bolt is connected to the fastening arc plate 38 through a rotating seat. Each bolt is rotatably connected within the corresponding rotating seat. A plurality of friction strips in a linear array are respectively arranged on each fastening arc plate 38 on the side close to the extension cylinder 34. Each fastening arc plate 38 is in contact with the corresponding extension cylinder 34.

[0035] The connecting support block 37 is used to fix the fastening arc plate 38, and the fastening arc plate 38 is used to support the adjusted-height extension cylinder 34, thereby making the support of the extension cylinder 34 more stable, and thus for support use.

[0036] The support height adjustment unit 3 further includes a rigid auxiliary support frame 310. Rigid auxiliary support frames 310 are respectively arranged on the front and back surfaces of the four rigid support rods 32. The front and back end faces of each rigid auxiliary support frame 310 are fixedly connected to the corresponding rigid support rod 32.

[0037] The rigid auxiliary support frame 310 is used to increase the strength of the support platform, make the support of the device more stable, and thus facilitate the support device.

[0038] The height adjustment power assembly 4 includes a support connection frame fixing buckle 41, a support connection frame 42, a push connecting plate 45, and an adjustment cross bar 46. A support connection frame fixing buckle 41 is fixedly connected to the position between the front and back of the four rigid support rods 32 on each support circular plate 31. A support connection frame 42 is fixedly connected to the four support connection frame fixing buckles 41. Rectangular sliding holes are respectively formed on the front and back corresponding side surfaces of the four rigid support rods 32, and each rectangular sliding hole extends into the cavity. An adjustment cross bar 46 is arranged at the front and back positions on both sides of the four rigid support rods 32. Moving bumps are respectively arranged on the corresponding side surfaces of the two adjustment cross bars 46 at the positions corresponding to the four rectangular sliding holes. Each moving bump passes through the rectangular sliding hole and is fixedly connected to the corresponding extension cylinder 34. Each moving bump is slidably connected within the corresponding rectangular sliding hole. A push connecting plate 45 is fixedly connected between the front and back of the two adjustment cross bars 46, and the push connecting plate 45 corresponds to the support connection frame 42.

[0039] The support connection frame fixing buckle 41 is used to fix the support connection frame 42, the support connection frame 42 is used to fix the height adjustment hydraulic cylinder 44, the push connecting plate 45 is used to push the adjustment cross bar 46 to move, and the adjustment cross bar 46 is used to drive the extension cylinder 34 to move, thereby performing height adjustment and facilitating height adjustment use.

[0040] The height adjustment power assembly 4 further includes auxiliary support rods 43 and a height adjustment hydraulic cylinder 44. An upper surface of the support connection frame 42 is provided with a height adjustment hydraulic cylinder 44. An extended end of the height adjustment hydraulic cylinder 44 is fixedly connected to a corresponding push connection plate 45. On the upper surface of the support connection frame 42, an auxiliary support rod 43 is provided on each side of the height adjustment hydraulic cylinder 44. The two auxiliary support rods 43 are in contact with the corresponding height adjustment hydraulic cylinder 44. An input end of the height adjustment hydraulic cylinder 44 is electrically connected to an output end of an external power supply through an external control switch group.

[0041] The auxiliary support rods 43 are used to support the height adjustment hydraulic cylinder 44. The height adjustment hydraulic cylinder 44 is activated to adjust the height, thereby providing power for height adjustment.

[0042] The working principle of a stage rigid support platform provided by the present utility model is as follows: First, the support circular plate 31 is used to support the device. The rigid support rod 32 is used to fix the limit cylinder 33. The limit cylinder 33 is used to make the movement of the extended cylinder 34 more stable. The extended cylinder 34 is used to adjust the height for convenient support use. The extended cylinder 34 is also used to fix the height adjustment support frame 39. The height adjustment support frame 39 is used to fix the support mounting plate 1. The auxiliary sliding column 36 is used to make the movement of the stable moving slider 35 more stable. The stable moving slider 35 moves to drive the extended cylinder 34 to move, thereby making the movement of the extended cylinder 34 more stable. The connecting support block 37 is used to fix the fastening arc plate 38. The fastening arc plate 38 is used to support the extended cylinder 34 after height adjustment, thereby making the support of the extended cylinder 34 more stable. The rigid auxiliary support frame 310 is used to increase the strength of the support platform. At the same time, the support connection frame fixing buckle 41 is used to fix the support connection frame 42. The support connection frame 42 is used to fix the height adjustment hydraulic cylinder 44. The push connection plate 45 is used to push the adjustment cross bar 46 to move. The adjustment cross bar 46 is used to drive the extended cylinder 34 to move. The auxiliary support rods 43 are used to support the height adjustment hydraulic cylinder 44. The height adjustment hydraulic cylinder 44 is activated to provide power for height adjustment to adjust the height for convenient use.

[0043] It should be noted that in the above embodiments, the core chip of the external control switch group is selected as a PLC single-chip microcomputer, and the external control switch group controls the operation of the height adjustment hydraulic cylinder 44 using a method commonly used in the prior art.

[0044] The above are only embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A rigid stage support platform, characterized in that: It includes a support mounting plate (1), a support height adjustment unit (3), and a height adjustment power assembly (4); Support mounting plate (1): A platform mounting post (2) is respectively arranged at each of the four corners of the upper surface. The support mounting plate (1) is fixedly connected to the external stage platform through the platform mounting posts (2). The support height adjustment unit (3) is arranged on the lower surface of the support mounting plate (1), and the height adjustment power assembly (4) is arranged on the support circular plate (31) in the support height adjustment unit (3); Support height adjustment unit (3): It includes a support circular plate (31), a rigid support rod (32), a limit cylinder (33), an extension cylinder (34), and a height adjustment support frame (39). A support circular plate (31) is respectively arranged at each of the four corners of the lower surface of the support mounting plate (1). A plurality of friction protrusions in an annular array are respectively arranged on the lower surface of each support circular plate (31). A rigid support rod (32) is respectively arranged on the upper surface of each support circular plate (31). Triangular fixing seats are respectively arranged on the left and right side surfaces of each rigid support rod (32). Each rigid support rod (32) is fixedly connected to the corresponding support circular plate (31) through the triangular fixing seat. A cavity is respectively opened in each rigid support rod (32). A limit cylinder (33) is respectively fixedly connected to the bottom end surface of the cavity in each rigid support rod (32). A circular hole is respectively opened on the upper surface of each rigid support rod (32), and each circular hole extends into the cavity. An extension cylinder (34) respectively passes through each circular hole. A limit circular groove is respectively opened on the lower end face of each extension cylinder (34). Each limit cylinder (33) is respectively arranged in the corresponding limit circular groove. The upper end faces of the four extension cylinders (34) are fixedly connected to a height adjustment support frame (39). The height adjustment support frame (39) is fixedly connected to the support mounting plate (1) by bolts. The height adjustment support frame (39) adopts a cross-shaped structure.

2. The rigid support platform for a stage according to claim 1, characterized in that: The support height adjustment unit (3) further includes a stable moving slider (35) and an auxiliary sliding column (36). Slide grooves are respectively opened on the left and right side surfaces of the cavity in each rigid support rod (32). An auxiliary sliding column (36) is respectively fixedly connected to each slide groove. A stable moving slider (35) is respectively slidably connected to each slide groove. The slide hole on each stable moving slider (35) is slidably connected to the corresponding auxiliary sliding column (36). The position of each extension cylinder (34) located in the cavity is respectively fixedly connected to the corresponding stable moving slider (35) through a support block. Each extension cylinder (34) is slidably connected in the corresponding cavity.

3. The rigid support platform for stage according to claim 1, characterized in that: The support height adjustment unit (3) further includes a connecting support block (37) and a fastening arc plate (38). A connecting support block (37) is fixedly connected to the left surface of each rigid support rod (32). Each connecting support block (37) is arranged at the upper side position of the rigid support rod (32). The screw holes on each rigid support rod (32) are threadedly connected with corresponding bolts. Each bolt is connected to the fastening arc plate (38) through a rotating seat. Each bolt is rotatably connected within the corresponding rotating seat. A plurality of linearly arrayed friction strips are respectively arranged on each fastening arc plate (38) on the side close to the extension cylinder (34). Each fastening arc plate (38) contacts the corresponding extension cylinder (34).

4. A rigid stage support platform according to claim 1, characterized in that: The support height adjustment unit (3) further includes a rigid auxiliary support frame (310). Rigid auxiliary support frames (310) are respectively arranged on the front and rear surfaces of the four rigid support rods (32). The front and rear end faces of each rigid auxiliary support frame (310) are fixedly connected to the corresponding rigid support rod (32).

5. A rigid stage support platform according to claim 1, wherein: The height adjustment power assembly (4) includes a support connection frame fixing buckle (41), a support connection frame (42), a push connection plate (45), and an adjustment cross bar (46). A support connection frame fixing buckle (41) is fixedly connected to the position between the front and rear of the four rigid support rods (32) on each support circular plate (31). A support connection frame (42) is fixedly connected to the four support connection frame fixing buckles (41). Rectangular sliding holes are respectively formed on the front and rear corresponding side surfaces of the four rigid support rods (32). Each rectangular sliding hole extends into the cavity. An adjustment cross bar (46) is respectively arranged at the positions on the front and rear sides of the four rigid support rods (32). Moving bumps are respectively arranged on the corresponding side surfaces of the two adjustment cross bars (46) at the positions corresponding to the four rectangular sliding holes. Each moving bump passes through the rectangular sliding hole and is fixedly connected to the corresponding extension cylinder (34). Each moving bump is slidably connected within the corresponding rectangular sliding hole. A push connection plate (45) is fixedly connected to the position between the front and rear of the two adjustment cross bars (46). The push connection plate (45) corresponds to the support connection frame (42).

6. The rigid support platform for a stage according to claim 5, wherein: The height adjustment power assembly (4) further includes an auxiliary support rod (43) and a height adjustment hydraulic cylinder (44). A height adjustment hydraulic cylinder (44) is arranged on the upper side surface of the support connection frame (42). The extension end of the height adjustment hydraulic cylinder (44) is fixedly connected to the corresponding push connection plate (45). An auxiliary support rod (43) is respectively arranged at the positions on the left and right sides of the height adjustment hydraulic cylinder (44) on the upper side surface of the support connection frame (42). The two auxiliary support rods (43) contact the corresponding height adjustment hydraulic cylinder (44). The input end of the height adjustment hydraulic cylinder (44) is electrically connected to the output end of the external power supply through an external control switch group.

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