Adjustable liquid crystal display screen glass substrate vacuum adsorption carrying clamp

Abstract

The utility model discloses an adjustable liquid crystal display screen glass substrate vacuum adsorption carrying clamp, and relates to the technical field of liquid crystal display screen production. The adsorption device comprises a cross-shaped frame, a fixed adsorption plate and an adjusting adsorption plate are arranged at the bottom of the cross-shaped frame, a plurality of adjusting assemblies are arranged in the cross-shaped frame, and the adjusting assemblies are in power connection with the corresponding adjusting adsorption plate. The adsorption plate is divided into a plurality of modules such as the fixed adsorption plate and the adjusting adsorption plates, and the adjusting adsorption plates can be driven by the adjusting assembly to move at the bottom of the cross-shaped frame, so that the positions of the adjusting adsorption plates can be adjusted according to different sizes of liquid crystal display screen glass substrates; by means of the arrangement, it can be ensured that the bottoms of the fixed adsorption plate and the multiple adjusting adsorption plates can make contact with the liquid crystal display screen glass substrate, and the utilization rate of adsorption areas generated by the fixed adsorption plate and the adjusting adsorption plates is increased.

Description

An adjustable vacuum adsorption and handling fixture for liquid crystal display glass substrates Technical Field

[0001] This utility model belongs to the field of liquid crystal display manufacturing technology, and specifically relates to an adjustable liquid crystal display glass substrate vacuum adsorption and handling fixture. Background Technology

[0002] In the manufacturing process of LCD displays, the glass substrate serves as the core carrier, and its high-precision, non-damaging handling is a key step in ensuring production efficiency and product quality. Due to the advantages of vacuum adsorption handling fixtures, such as non-contact operation and precise positioning, they are widely used in the industrial field to handle glass substrates.

[0003] In current LCD manufacturing processes, vacuum adsorption handling fixtures commonly employ large-size vacuum adsorption plates to accommodate the handling needs of substrates of different sizes. However, this crude "one plate for multiple sizes" design has significant drawbacks in practical applications: when handling smaller substrates, the area of ​​the vacuum adsorption plate surface extending beyond the substrate edge remains unused due to the inability to form effective adsorption, resulting in a significant reduction in the actual utilization rate of the adsorption area. This not only leads to equipment structural redundancy and energy waste but may also affect system stability due to the increased risk of vacuum leakage in the ineffective adsorption area. Summary of the Invention

[0004] To address the problem that the vacuum adsorption plate cannot be adjusted according to the size of the substrate, this invention proposes an adjustable vacuum adsorption and handling fixture for liquid crystal display glass substrates to overcome the aforementioned technical problems in existing related technologies.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is an adjustable vacuum adsorption and handling fixture for liquid crystal display glass substrates, including a cross frame. The bottom of the cross frame is provided with a fixed adsorption plate and an adjustable adsorption plate. Multiple adjustable adsorption plates are arranged in a circular array on the bottom of the cross frame. Several adjustment components are provided inside the cross frame. The adjustment components are poweredly connected to the corresponding adjustable adsorption plates. The bottom of each of the adjustable adsorption plates is provided with a support component. The support component is provided with a pressing component inside.

[0007] The adjustment component is used to adjust the position of the adjustment adsorption plate so that the fixed adsorption plate and the adjustment adsorption plate cooperate to adsorb the substrate. The support component is used to support the bottom of the substrate adsorbed by the adjustment adsorption plate.

[0008] Furthermore, the adjustment assembly includes adjustment plates, several of which are movably connected inside the cross frame. Each adjustment plate is fixedly connected to a corresponding adjustment adsorption plate. Two bidirectional screws are rotatably connected inside the cross frame, and the two bidirectional screws are arranged in a cross shape, staggered vertically. Several adjustment plates are threadedly connected to their corresponding bidirectional screws. A fixing rod is fixedly connected inside the cross frame to the corresponding bidirectional screw. Several adjustment plates are movably connected to their corresponding fixing rods. One end of each bidirectional screw passes through the cross frame and is fixedly connected to a control disc.

[0009] Furthermore, the support assembly includes a T-shaped support rod, which is fixedly connected to the outside of the adjusting adsorption plate. An L-shaped support plate is movably connected to the outside of the T-shaped support rod. A push spring is fixedly connected between the outside of the L-shaped support plate and the top of the T-shaped support rod. Several rubber support rollers are rotatably connected to the bottom of the inner wall of the L-shaped support plate.

[0010] Furthermore, the extrusion assembly includes a through groove, which is formed at the bottom of the L-shaped support plate. A wedge block is movably connected inside the through groove. A fixing plate is fixedly connected to the outside of the adjusting plate. A T-shaped connecting rod is fixedly connected to the bottom of the fixing plate. A connecting plate is movably connected to the outside of the connecting rod. The connecting plate is fixedly connected to the top of the wedge block.

[0011] Furthermore, the inner wall of the through groove is arc-shaped, and a return spring is fixedly connected between the fixing plate and the connecting plate.

[0012] Furthermore, a support tube is fixedly connected to the top of the fixed adsorption plate, the top end of the support tube passes through the cross frame and is fixedly connected to a polygonal connecting tube, several flexible tubes are fixedly connected to the side ports of the polygonal connecting tube, one end of the several flexible tubes is fixedly connected to the corresponding adjustable adsorption plate, and an installation tube is fixedly connected to the top end of the polygonal connecting tube.

[0013] Furthermore, a reinforcing plate is fixedly connected to the outer side of the cross frame, a mounting rod is fixedly installed on the top of the reinforcing plate, a mounting plate is fixedly connected to the top of the mounting rod, a mounting hole is opened on the top of the mounting plate, and one end of the mounting tube passes through the mounting plate.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model divides the adsorption plate into several modules, including a fixed adsorption plate and several adjustable adsorption plates. The adjustable adsorption plates can move at the bottom of the cross frame under the action of the adjustment component. This allows the positions of the adjustable adsorption plates to be adjusted according to the different sizes of LCD glass substrates. The above configuration ensures that the bottoms of both the fixed adsorption plate and the adjustable adsorption plates can contact the LCD glass substrate, thereby improving the utilization rate of the adsorption area generated by the fixed adsorption plate and the adjustable adsorption plates. At the same time, it can also avoid the increased risk of vacuum leakage due to ineffective adsorption areas, which would affect the stability of the system.

[0016] 2. In this utility model, when the fixed adsorption plate and the adjustable adsorption plate are moved downward by the cross frame, the wedge block can make contact with the ground first. As the cross frame moves downward, the wedge block can move the L-shaped support plate out from the bottom of the corresponding adjustable adsorption plate, so that the fixed adsorption plate and the adjustable adsorption plate can make normal contact with the top of the liquid crystal display glass substrate. The above arrangement allows the L-shaped support plate to support the adsorption position of the liquid crystal display glass substrate, thereby further improving the stability when transporting the liquid crystal display glass substrate. At the same time, when the adjustable adsorption plate adsorbs the liquid crystal display glass substrate, the L-shaped support plate will not cause obstruction.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a schematic diagram of the external outline structure of this utility model;

[0020] Figure 2 is a bottom view of the structure of this utility model as shown in Figure 1;

[0021] Figure 3 is a top view of the cross frame structure of this utility model;

[0022] Figure 4 is a schematic diagram of the support component structure of this utility model;

[0023] Figure 5 is a schematic diagram of the extrusion assembly structure of this utility model;

[0024] Figure 6 is a schematic diagram of the adjustment component structure of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Cross frame; 2. Fixed adsorption plate; 3. Adjustable adsorption plate; 4. Adjustment assembly; 401. Adjustment plate; 402. Bidirectional screw; 403. Fixing rod; 404. Control panel; 5. Support assembly; 501. T-shaped support rod; 502. L-shaped support plate; 503. Push spring; 504. Rubber support roller; 6. Extrusion assembly; 601. Through groove; 602. Wedge block; 603. Fixing plate; 604. T-shaped connecting rod; 605. Connecting plate; 606. Return spring; 7. Support tube; 8. Polygonal connecting tube; 9. Hose; 10. Mounting tube; 11. Reinforcing plate; 12. Mounting rod; 13. Mounting plate; 14. Mounting hole. Detailed Implementation

[0027] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0028] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0029] Please refer to Figures 1-6. This utility model is an adjustable vacuum adsorption and handling fixture for liquid crystal display glass substrates, including a cross frame 1. The bottom of the cross frame 1 is provided with a fixed adsorption plate 2 and an adjustable adsorption plate 3. Multiple adjustable adsorption plates 3 are arranged in a circular array on the bottom of the cross frame 1. Several adjustment components 4 are provided inside the cross frame 1. The adjustment components 4 are poweredly connected to the corresponding adjustable adsorption plates 3. The bottom of each of the adjustable adsorption plates 3 is provided with a support component 5. The support component 5 is provided with a pressing component 6 inside.

[0030] The adjustment component 4 is used to adjust the position of the adjustment adsorption plate 3 so that the fixed adsorption plate 2 and the adjustment adsorption plate 3 cooperate to adsorb the substrate. The support component 5 is used to support the bottom of the substrate adsorbed by the adjustment adsorption plate 3.

[0031] By mounting the cross frame 1 on a transfer vehicle equipped with a robotic arm, and by adjusting the assembly 4, several adjustable adsorption plates 3 can be moved, thereby allowing the adjustable adsorption plates 3 to be adjusted according to the size of the liquid crystal display glass substrate. When transporting the liquid crystal display glass substrate, the cross frame 1 is moved to the upper side of the liquid crystal display glass substrate by the transfer vehicle and the robotic arm, and then the cross frame 1 moves downward under the drive of the robotic arm, thereby bringing the fixed adsorption plate 2 and the adjustable adsorption plate 3 into contact with the liquid crystal display glass substrate, so that the fixed adsorption plate 2 and the adjustable adsorption plate 3 can adsorb and transport it.

[0032] By dividing the adsorption plate into several modules, such as a fixed adsorption plate 2 and several adjustable adsorption plates 3, and by allowing the adjustable adsorption plates 3 to move at the bottom of the cross frame 1 under the drive of the adjustment component 4, the positions of the several adjustable adsorption plates 3 can be adjusted according to the different sizes of liquid crystal display glass substrates. The above configuration can ensure that the bottoms of the fixed adsorption plate 2 and the several adjustable adsorption plates 3 can contact the liquid crystal display glass substrate, thereby improving the utilization rate of the adsorption area generated by the fixed adsorption plate 2 and the adjustable adsorption plate 3, and at the same time avoiding the risk of increased vacuum leakage due to ineffective adsorption areas, which would affect the stability of the system.

[0033] In one embodiment, for the aforementioned adjusting plate 401, the adjusting assembly 4 includes adjusting plate 401, and several adjusting plates 401 are movably connected inside the cross frame 1. The adjusting plates 401 are fixedly connected to the corresponding adjusting adsorption plates 3. Two bidirectional screws 402 are rotatably connected inside the cross frame 1. The two bidirectional screws 402 are arranged in a cross shape, staggered vertically. Several adjusting plates 401 are threaded together with the corresponding bidirectional screws 402. A fixing rod 403 is fixedly connected inside the cross frame 1 corresponding to the bidirectional screws 402. Several adjusting plates 401 are movably connected to the corresponding fixing rods 403. One end of the bidirectional screw 402 passes through the cross frame 1 and is fixedly connected to a control disk 404.

[0034] The control panel 404 rotates the bidirectional screw 402, causing the two sets of adjustment plates 401 to move under the drive of the bidirectional screw 402 and the guidance of the fixing rod 403. At this time, the two opposing adjustment suction plates 3 can adjust their positions according to the liquid crystal display glass substrate under the drive of the corresponding adjustment plates 401. In the above setting, all the adjustment plates 401 are driven by two bidirectional screws 402. Since the two bidirectional screws 402 are staggered, they can drive the corresponding adjustment plates 401, thus avoiding motion interference.

[0035] In one embodiment, the support assembly 5 includes a T-shaped support rod 501, which is fixedly connected to the outside of the adjusting adsorption plate 3. An L-shaped support plate 502 is movably connected to the outside of the T-shaped support rod 501. A push spring 503 is fixedly connected between the outside of the L-shaped support plate 502 and the top of the T-shaped support rod 501. A plurality of rubber support rollers 504 are rotatably connected to the bottom of the inner wall of the L-shaped support plate 502.

[0036] When the fixed adsorption plate 2 and the adjustable adsorption plate 3 complete the adsorption of the liquid crystal display glass substrate and lift it up, the L-shaped support plate 502 can move directly to the bottom of the adsorbed liquid crystal display glass substrate under the push of the push spring 503. This allows the L-shaped support plate 502 to support the liquid crystal display glass substrate. This arrangement makes it less likely for the liquid crystal display glass substrate to separate from the fixed adsorption plate 2 and the adjustable adsorption plate 3 when the clamp is transporting it, thereby further improving the overall clamping effect of the clamp. In the above arrangement, when the L-shaped support plate 502 moves to the bottom of the adsorbed liquid crystal display glass substrate, the rubber support roller 504 can contact the bottom of the liquid crystal display glass substrate. At the same time, as the L-shaped support plate 502 moves, the rubber support roller 504 can rotate at the bottom of the liquid crystal display glass substrate, thereby avoiding the phenomenon that the L-shaped support plate 502 will cause wear to the bottom of the liquid crystal display glass substrate when it moves to the bottom.

[0037] In one embodiment, the extrusion assembly 6 includes a through groove 601, which is located at the bottom of the L-shaped support plate 502. A wedge block 602 is movably connected inside the through groove 601. A fixing plate 603 is fixedly connected to the outside of the adjusting plate 401. A T-shaped connecting rod 604 is fixedly connected to the bottom of the fixing plate 603. A connecting plate 605 is movably connected to the outside of the T-shaped connecting rod 604. The connecting plate 605 is fixedly connected to the top of the wedge block 602. The inner wall of the through groove 601 is arc-shaped. A return spring 606 is fixedly connected between the fixing plate 603 and the connecting plate 605.

[0038] When the robotic arm moves the fixed suction plate 2 and the adjustable suction plate 3 downwards via the cross frame 1, the wedge block 602 can first contact the support platform that supports the LCD glass substrate. As the cross frame 1 continues to move downwards, the wedge block 602 moves continuously within the through groove 601. The moving wedge block 602 moves outwards along the arc-shaped inner wall of the through groove 601, allowing the L-shaped support plate 502 to move out from the bottom of the corresponding adjustable suction plate 3. This allows the fixed suction plate 2 and the adjustable suction plate 3 to properly contact the top of the LCD glass substrate. When the fixed adsorption plate 2 and the adjustable adsorption plate 3 complete the adsorption of the liquid crystal display glass substrate and lift it up, the wedge block 602 moves downward continuously under the push of the return spring 606. At the same time, the L-shaped support plate 502 continuously contacts the bottom of the adsorbed liquid crystal display glass substrate under the push of the push spring 503. The above arrangement allows the L-shaped support plate 502 to support the adsorption position of the liquid crystal display glass substrate, thereby further improving the stability when transporting the liquid crystal display glass substrate. At the same time, the L-shaped support plate 502 will not cause obstruction when the adjustable adsorption plate 3 adsorbs the liquid crystal display glass substrate.

[0039] In one embodiment, for the fixed adsorption plate 2, a support tube 7 is fixedly connected to the top of the fixed adsorption plate 2, the top end of the support tube 7 passes through the cross frame 1 and is fixedly connected to a polygonal connecting tube 8, a plurality of flexible tubes 9 are fixedly connected to the side port of the polygonal connecting tube 8, one end of the plurality of flexible tubes 9 is fixedly connected to the corresponding adjusting adsorption plate 3, and an installation tube 10 is fixedly connected to the top end of the polygonal connecting tube 8.

[0040] The support tube 7 is made of a rigid material, which prevents the fixed adsorption plate 2 from shaking when adsorbing the liquid crystal display glass substrate under the support of the support tube 7. The flexible tube 9 is made of a softer material, which ensures that the connection between the flexible tube 9, the adjustable adsorption plate 3, and the polygonal connecting tube 8 is not disrupted when adjusting the position of the adjustable adsorption plate 3. The mounting tube 10 is connected to an external vacuum pump. When adsorbing the liquid crystal display glass substrate, the vacuum pump extracts air from the fixed adsorption plate 2 and the adjustable adsorption plate 3 through the mounting tube 10, the polygonal connecting tube 8, the support tube 7, and the flexible tube 9, thereby creating a negative pressure inside the fixed adsorption plate 2 and the adjustable adsorption plate 3, and generating an adsorption force.

[0041] In one embodiment, for the aforementioned cross frame 1, a reinforcing plate 11 is fixedly connected to the outer side of the cross frame 1, a mounting rod 12 is fixedly installed on the top of the reinforcing plate 11, a mounting plate 13 is fixedly connected to the top of the mounting rod 12, a mounting hole 14 is opened on the top of the mounting plate 13, and one end of the mounting tube 10 passes through the mounting plate 13.

[0042] The mounting plate 13 is installed on the adjusting end of the robotic arm by fixing bolts, so that the robotic arm can adjust the position of the cross frame 1 through the mounting plate 13, and move the fixed adsorption plate 2 and the adjusting adsorption plate 3 set at the bottom of the cross frame 1 to the appropriate position. At the same time, the position of the robotic arm to fix the mounting plate 13 can be set in a ring shape, so that the vacuum pump and the mounting tube 10 will not be obstructed in the future. The reinforcing plate 11 makes the cross frame 1 less prone to deformation.

[0043] Through the above technical solution, 1. By dividing the adsorption plate into several modules such as a fixed adsorption plate 2 and several adjustable adsorption plates 3, and with the adjustable adsorption plates 3 being able to move at the bottom of the cross frame 1 under the drive of the adjustment component 4, the positions of the several adjustable adsorption plates 3 can be adjusted according to different sizes of liquid crystal display glass substrates. The above setting can ensure that the bottoms of the fixed adsorption plate 2 and the several adjustable adsorption plates 3 can contact the liquid crystal display glass substrate, thereby improving the utilization rate of the adsorption area generated by the fixed adsorption plate 2 and the adjustable adsorption plates 3, and at the same time avoiding the increase in the risk of vacuum leakage due to ineffective adsorption areas, which would affect the stability of the system; 2. The fixed adsorption plate is driven by the cross frame 1. When the fixed adsorption plate 2 and the adjusting adsorption plate 3 move downwards, the wedge block 602 can make contact with the ground first. As the cross frame 1 moves downwards, the wedge block 602 can move the L-shaped support plate 502 out from the bottom of the corresponding adjusting adsorption plate 3, so that the fixed adsorption plate 2 and the adjusting adsorption plate 3 can make normal contact with the top of the liquid crystal display glass substrate. The above arrangement allows the L-shaped support plate 502 to support the adsorption position of the liquid crystal display glass substrate, thereby further improving the stability when transporting the liquid crystal display glass substrate. At the same time, when the adjusting adsorption plate 3 adsorbs the liquid crystal display glass substrate, the L-shaped support plate 502 will not cause obstruction.

[0044] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An adjustable vacuum adsorption and handling fixture for liquid crystal display glass substrates, comprising a cross frame (1), characterized in that, The bottom of the cross frame (1) is provided with a fixed adsorption plate (2) and an adjustable adsorption plate (3). Multiple adjustable adsorption plates (3) are arranged in a circular array at the bottom of the cross frame (1). Several adjustment components (4) are provided inside the cross frame (1). The adjustment components (4) are poweredly connected to the corresponding adjustable adsorption plates (3). Support components (5) are provided at the bottom of each of the adjustable adsorption plates (3). An extrusion component (6) is provided inside the support components (5). The adjustment components (4) are used to adjust the position of the adjustable adsorption plates (3) so that the fixed adsorption plate (2) and the adjustable adsorption plate (3) cooperate to adsorb the substrate. The support components (5) are used to support the bottom of the substrate adsorbed by the adjustable adsorption plate (3).

2. The adjustable liquid crystal display glass substrate vacuum adsorption and handling fixture according to claim 1, characterized in that, The adjustment assembly (4) includes an adjustment plate (401). Several adjustment plates (401) are movably connected inside the cross frame (1). The adjustment plates (401) are fixedly connected to the corresponding adjustment adsorption plates (3). Two bidirectional screws (402) are rotatably connected inside the cross frame (1). The two bidirectional screws (402) are arranged in a cross shape, staggered vertically. Several adjustment plates (401) are threaded together with the corresponding bidirectional screws (402). A fixing rod (403) is fixedly connected inside the cross frame (1) to the corresponding bidirectional screws (402). Several adjustment plates (401) are movably connected to the corresponding fixing rods (403). One end of the bidirectional screw (402) passes through the cross frame (1) and is fixedly connected to a control panel (404).

3. The adjustable liquid crystal display glass substrate vacuum adsorption and handling fixture according to claim 2, characterized in that, The support assembly (5) includes a T-shaped support rod (501), which is fixedly connected to the outside of the adjusting adsorption plate (3). An L-shaped support plate (502) is movably connected to the outside of the T-shaped support rod (501). A push spring (503) is fixedly connected between the outside of the L-shaped support plate (502) and the top of the T-shaped support rod (501). Several rubber support rollers (504) are rotatably connected to the bottom of the inner wall of the L-shaped support plate (502).

4. The adjustable liquid crystal display glass substrate vacuum adsorption and handling fixture according to claim 3, characterized in that, The extrusion assembly (6) includes a through groove (601) which is located at the bottom of an L-shaped support plate (502). A wedge block (602) is movably connected inside the through groove (601). A fixing plate (603) is fixedly connected to the outside of the adjusting plate (401). A T-shaped connecting rod (604) is fixedly connected to the bottom of the fixing plate (603). A connecting plate (605) is movably connected to the outside of the T-shaped connecting rod (604). The connecting plate (605) is fixedly connected to the top of the wedge block (602).

5. The adjustable liquid crystal display glass substrate vacuum adsorption and handling fixture according to claim 4, characterized in that, The inner wall of the through groove (601) is arc-shaped, and a return spring (606) is fixedly connected between the fixing plate (603) and the connecting plate (605).

6. The adjustable liquid crystal display glass substrate vacuum adsorption and handling fixture according to claim 1, characterized in that, The top of the fixed adsorption plate (2) is fixedly connected to a support tube (7). The top of the support tube (7) passes through the cross frame (1) and is fixedly connected to a polygonal connecting tube (8). Several hoses (9) are fixedly connected to the side ports of the polygonal connecting tube (8). One end of several hoses (9) is fixedly connected to the corresponding adjusting adsorption plate (3). The top of the polygonal connecting tube (8) is fixedly connected to an installation tube (10).

7. The adjustable liquid crystal display glass substrate vacuum adsorption and handling fixture according to claim 6, characterized in that, A reinforcing plate (11) is fixedly connected to the outside of the cross frame (1). A mounting rod (12) is fixedly installed on the top of the reinforcing plate (11). A mounting plate (13) is fixedly connected to the top of the mounting rod (12). A mounting hole (14) is opened on the top of the mounting plate (13). One end of the mounting tube (10) passes through the mounting plate (13).

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