Support frame for fixing building curtain wall

Abstract

The utility model discloses a support frame and a support frame assembly for fixing a building curtain wall in the technical field of building curtain walls, which comprise a mounting plate, a buffer part is arranged on one side of the mounting plate, a U-shaped frame and a curtain wall fixing assembly are mounted at one end of the buffer part far away from the mounting plate, the curtain wall fixing assembly is arranged on the U-shaped frame, and the curtain wall fixing assembly is arranged on the U-shaped frame. The device comprises an adjusting piece, the adjusting piece is arranged in a U-shaped frame, a driving piece is arranged at the top of the U-shaped frame, the bottom of the driving piece is connected with the top of the adjusting piece, clamping seats are arranged at the top and the bottom of the end, away from a mounting plate, of the adjusting piece correspondingly, and a curtain wall body is placed between the two clamping seats; a supporting piece is arranged between the curtain wall body and the U-shaped frame. According to the supporting frame, the adjusting piece, the driving piece, the clamping base and the curtain wall body are arranged in a matched mode, so that the supporting frame can fix the curtain wall bodies with different lengths and widths, and the universality of the supporting frame is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building curtain walls, in particular to a supporting frame for fixing building curtain walls. Background Art

[0002] The building curtain wall refers to the non-load-bearing exterior wall enclosure of a building, which is usually composed of panels (glass, metal plates, stone slabs, ceramic plates, etc.) and the supporting structure behind it (aluminum beams and columns, steel structures, etc.). The curtain wall is the exterior wall enclosure of a building, which is non-load-bearing and is hung like a curtain, so it is also called a suspended wall. It is a lightweight wall with decorative effects commonly used in modern large and high-rise buildings.

[0003] The Chinese utility model patent announcement number CN220644798U discloses a building curtain wall support structure, including a support structure body, the support structure body includes a connecting seat, a curtain wall is movably installed on the connecting seat, a support seat is fixedly installed on one side of the connecting seat, a support frame is welded on the support seat, a fixed frame is movably installed on one end of the support frame, a fixed seat is welded on the fixed frame, and a positioning block is welded on the side of the fixed frame, and the positioning block is in contact with both sides of the support frame. This building curtain wall support structure tilts the movable plate and squeezes it upward, and one end of the movable plate contacts the support seat. After the contact, a thrust is generated between the support seat and the fixed frame. The thrust makes the fixed frame and the support frame in close contact, thereby avoiding the influence caused by the shaking of the fixed frame and the support frame. The movable plate contacts the support frame and the support seat to provide multi-point support for use. The above-mentioned support structure has a fixed single size and cannot be adjusted. It can only correspond to a curtain wall of one size, and cannot be fixedly installed and supported for curtain walls of different specifications, thereby reducing the universality of the support structure. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] Therefore, the purpose of the utility model is to provide a support frame for fixing building curtain walls, which can solve the problem that the existing support structure has a fixed single size, cannot be adjusted, and can only correspond to curtain walls of one size, thereby reducing the universality of the support structure.

[0006] In order to solve the above technical problems, the utility model provides a support frame for fixing a building curtain wall, which adopts the following technical solution: a support frame assembly, which includes a mounting plate, a buffer is provided on one side of the mounting plate, and a U-shaped frame is installed at one end of the buffer away from the mounting plate;

[0007] A curtain wall fixing assembly is arranged on the U-shaped frame, and includes an adjusting member, which is arranged inside the U-shaped frame. A driving member is arranged on the top of the U-shaped frame, and the bottom of the driving member is connected to the top of the adjusting member. Clamping seats are arranged on the top and bottom of the adjusting member away from the mounting plate. A curtain wall body is placed between two groups of the clamping seats, and a supporting member is arranged between the curtain wall body and the U-shaped frame.

[0008] By adopting the above technical solution, the present solution drives the adjusting member to work through the driving member, and the working of the adjusting member drives the two groups of clamping seats to move and approach or move away from each other, so that the two groups of clamping seats can fix curtain wall bodies of different lengths and widths, making the support frame suitable for curtain wall bodies of different specifications, thereby improving the universality of the support frame.

[0009] Optionally, fixing bolts are provided at four corners of the mounting plate on one side close to the U-shaped frame.

[0010] By adopting the above technical solution, it is convenient to connect the mounting plate to the wall through fixing bolts, and then the entire support frame can be fixedly connected to the wall.

[0011] Optionally, the buffer component includes two groups of grooves, the two groups of grooves are respectively opened at the upper end and the lower end of the mounting plate close to the U-shaped frame, the inner walls of the two groups of grooves are connected with buffer springs, the two groups of buffer springs are installed with sliders on the side close to the center of the mounting plate, the two groups of sliders are installed with movable blocks on the side close to the U-shaped frame, the two groups of movable blocks are hinged with connecting rods on one side, the two groups of connecting rods are hinged with fixed blocks at one end away from the movable blocks, the two groups of fixed blocks are fixedly connected with one end away from the mounting plate to the end of the U-shaped frame close to the mounting plate, and dampers are symmetrically installed between the mounting plate and the U-shaped frame.

[0012] By adopting the above technical solution, when encountering strong winds, the wind blows towards the curtain wall body, so that the U-shaped frame drives the fixed block to move toward the direction of the mounting plate, and the fixed block drives the movable block to move through the connecting rod. When the movable block moves, it drives the slider to move and compresses the buffer spring, and the damper contracts, so that the curtain wall body can have a certain displacement capacity when subjected to wind pressure, thereby preventing the curtain wall body from being damaged under wind pressure.

[0013] Optionally, the adjusting member includes two groups of bidirectional screw rods, which are connected to the two ends of the inner cavity of the U-shaped frame through bearings, and both ends of the outer walls of the two groups of bidirectional screw rods are screwed with nuts, and movable plates are symmetrically installed at one end of the two groups of nuts away from the U-shaped frame.

[0014] By adopting the above technical solution, the bidirectional screw drives the nut to move up and down when it rotates, and the nut drives the movable plate to move closer to or farther away from each other when it moves up and down, so that the distance between the two groups of clamping seats can be adjusted.

[0015] Optionally, the driving member includes an L-shaped plate, which is mounted on the top of the U-shaped frame, a servo motor is mounted on the inner top wall of the L-shaped plate, a driving shaft is mounted on the power output end of the servo motor, a driving pulley is sleeved on the outer wall of the driving shaft, an end of the inner top wall of the L-shaped plate away from the driving shaft is connected to a driven shaft via a bearing, a driven pulley is sleeved on the outer wall of the driven shaft, a connecting belt is provided for external transmission of the driving pulley and the driven pulley, and the bottom of the driving shaft and the driven shaft are respectively fixedly connected to the tops of two sets of bidirectional screw rods.

[0016] By adopting the above technical solution, when the servo motor is working, the driving shaft drives the driving pulley to rotate, the driving pulley drives the driven pulley to rotate through the connecting belt, the driven pulley rotates and drives the driven shaft to rotate, thereby driving the two sets of bidirectional screws to rotate synchronously.

[0017] Optionally, the clamping seat includes two groups of clamping seats, both groups of the clamping seats are installed on the end of the two groups of movable plates away from the nut, the first electric push rods are installed on the side walls on the left side of the two groups of clamping seats, and the output ends of the two groups of the first electric push rods are installed with clamping plates.

[0018] By adopting the above technical solution, the first electric push rod is extended and retracted to drive the clamping plate to move left and right, thereby being able to clamp and fix curtain wall bodies of different widths.

[0019] Optionally, the side walls on the right side of the two groups of the card holders are both connected to a first rubber pad, and the ends of the two groups of the clamping plates facing away from the first electric push rod are both connected to a second rubber pad.

[0020] By adopting the above technical solution, the friction between the holder and the clamping plate and the curtain wall body is increased, and at the same time, it is convenient to protect the surface of the curtain wall body to avoid pinching as much as possible.

[0021] Optionally, pulleys are installed on one side of the two groups of clamping plates away from the center of the curtain wall body, and slide rails that slidably cooperate with the pulleys are opened on the inner sides of the two groups of clamping seats.

[0022] By adopting the above technical solution, when the clamping plate moves, it can drive the pulley to slide inside the slide rail, so that the clamping plate moves more smoothly.

[0023] Optionally, the support member includes two groups of second electric push rods, the two groups of second electric push rods are installed on the end of the U-shaped frame away from the mounting plate, the output ends of the two groups of second electric push rods are installed with support plates, and the ends of the two groups of support plates away from the second electric push rods are connected with silicone pads.

[0024] By adopting the above technical solution, the second electric push rod is extended to drive the support plate to move toward the curtain wall body until the silicone pad is in direct contact with the curtain wall body, thereby supporting the curtain wall body and making the curtain wall body more stable during installation.

[0025] In summary, the present invention has at least one of the following beneficial effects:

[0026] By coordinating the adjusting member, the driving member, the clamping seat and the curtain wall body, the support frame can fix curtain wall bodies of different lengths and widths, thereby improving the universality of the support frame.

[0027] Through the coordinated arrangement of the grooves, buffer springs, sliders, movable blocks, connecting rods, fixed blocks and dampers, the curtain wall body can have a certain displacement capacity when subjected to wind pressure, thereby preventing the curtain wall body from being damaged under wind pressure.

[0028] By cooperating with the second electric push rod, the support plate and the silicone pad, the curtain wall body can be further supported so that the curtain wall body can be stably installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a cross-sectional structural schematic diagram of the utility model;

[0031] Figure 2 It is a right view structural schematic diagram of the utility model;

[0032] Figure 3 For the utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0033] In the figure:

[0034] 1. Support frame assembly; 101. Mounting plate; 1011. Fixing bolt; 102. Buffer; 1021. Groove; 1022. Buffer spring; 1023. Slider; 1024. Movable block; 1025. Connecting rod; 1026. Fixing block; 1027. Damper; 103. U-shaped frame;

[0035] 2. Curtain wall fixing assembly; 201. Adjustment member; 2011. Bidirectional screw rod; 2012. Nut; 2013. Movable plate; 202. Driving member; 2021. L-shaped plate; 2022. Servo motor; 2023. Active shaft; 2024. Active pulley; 2025. Driven shaft; 2026. Driven pulley; 2027. Connecting belt; 203. Clamping seat; 2031. Card seat; 20311. First rubber pad; 20312. Slide rail; 2032. First electric push rod; 2033. Clamping plate; 20331. Second rubber pad; 20332. Pulley; 204. Curtain wall body; 205. Support member; 2051. Second electric push rod; 2052. Support plate; 2053. Silicone pad. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-3 The utility model is described in further detail.

[0037] Embodiment 1, refer to Figure 1 In order to solve the problem that the existing supporting structure has a fixed single size, cannot be adjusted, and can only correspond to curtain walls of one size, thereby reducing the universality of the supporting structure, the utility model discloses a supporting frame assembly 1 for fixing a building curtain wall, which includes a mounting plate 101, a buffer member 102 is provided on one side of the mounting plate 101, and a U-shaped frame 103 is installed on the end of the buffer member 102 away from the mounting plate 101.

[0038] The curtain wall fixing component 2 is arranged on the U-shaped frame 103, and includes an adjusting member 201, which is arranged inside the U-shaped frame 103. A driving member 202 is arranged on the top of the U-shaped frame 103, and the bottom of the driving member 202 is connected to the top of the adjusting member 201. The top and bottom of the adjusting member 201 away from the mounting plate 101 are both provided with clamping seats 203, a curtain wall body 204 is placed between the two groups of clamping seats 203, and a supporting member 205 is arranged between the curtain wall body 204 and the U-shaped frame 103.

[0039] Reference Figure 1 The four corners of the mounting plate 101 close to the U-shaped frame 103 are all provided with fixing bolts 1011. It is convenient to connect the mounting plate 101 to the wall through the fixing bolts 1011, and then the entire support frame can be fixedly connected to the wall.

[0040] Reference Figure 1The adjusting member 201 includes two sets of bidirectional screw rods 2011, which are rotatably connected to the two ends of the inner cavity of the U-shaped frame 103 through bearings, and screw nuts 2012 are screwed to the two ends of the outer walls of the two sets of bidirectional screw rods 2011, and movable plates 2013 are symmetrically installed at one end of the two sets of screw nuts 2012 away from the U-shaped frame 103. When the bidirectional screw rods 2011 rotate, the screw nuts 2012 are driven to move up and down, and when the screw nuts 212 move up and down, the movable plates 2013 are driven to move and move closer or farther from each other, so that the spacing between the two sets of clamping seats 203 can be adjusted.

[0041] Reference Figure 1 and Figure 2 The driving member 202 includes an L-shaped plate 2021, which is installed on the top of the U-shaped frame 103. A servo motor 2022 is installed on the inner top wall of the L-shaped plate 2021. A driving shaft 2023 is installed on the power output end of the servo motor 2022. A driving pulley 2024 is fixedly sleeved on the outer wall of the driving shaft 2023. A driven shaft 2025 is rotatably connected to the end of the inner top wall of the L-shaped plate 2021 away from the driving shaft 2023 through a bearing. A driven pulley 2026 is fixedly sleeved on the outer wall of the driven shaft 2025. A connecting belt 2027 is provided for external transmission of the driving pulley 2024 and the driven pulley 2026. The bottoms of the driving shaft 2023 and the driven shaft 2025 are respectively fixedly connected to the tops of the two sets of bidirectional screw rods 2011. When the servo motor 2022 is working, it drives the driving pulley 2024 to rotate through the driving shaft 2023, and the driving pulley 2024 drives the driven pulley 2026 to rotate through the connecting belt 2027. The rotation of the driven pulley 2026 drives the driven shaft 2025 to rotate, which can drive the two sets of bidirectional screws 2011 to rotate synchronously.

[0042] Reference Figure 1 and Figure 3 The clamping seat 203 includes two sets of clamping seats 2031, both of which are mounted on the ends of the two sets of movable plates 2013 away from the nut 212. The first electric push rods 2032 are fixedly mounted on the side walls on the left side of the two sets of clamping seats 2031, and the output ends of the two sets of first electric push rods 2032 are fixedly mounted with clamping plates 2033. The first electric push rods 2032 are extended and retracted to drive the clamping plates 2033 to move left and right, thereby being able to clamp and fix curtain wall bodies 204 of different widths.

[0043] Reference Figure 1 and Figure 3The first rubber pad 20311 is fixedly connected to the side wall on the right side of the two sets of clamps 2031, and the second rubber pad 20331 is fixedly connected to the end of the two sets of clamps 2033 away from the first electric push rod 2032. The friction between the clamps 2031 and the clamps 2033 and the curtain wall body 204 is increased, and it is also convenient to protect the surface of the curtain wall body 204 to avoid the situation of being pinched. The pulley 20332 is rotatably installed on the side of the two sets of clamps 2033 away from the center of the curtain wall body 204, and the inner side of the two sets of clamps 2031 is provided with a slide rail 20312 that slides with the pulley 20332. When the clamps 2033 move, they can drive the pulley 20332 to slide inside the slide rail 20312, so that the clamps 2033 move more smoothly.

[0044] Specific implementation principle: the staff fixes the mounting plate 101 on the wall by screwing in the fixing bolts 1011. According to the length specification of the curtain wall body 204, the staff starts the servo motor 2022. When the servo motor 2022 is working, it drives the driving pulley 2024 to rotate through the driving shaft 2023. When the driving pulley 2024 rotates, it drives the driven pulley 2026 to rotate through the connecting belt 2027. The driven pulley 2026 rotates and drives the driven shaft 2025 to rotate, which can drive the two sets of bidirectional screw rods 2011 to rotate synchronously. When the bidirectional screw rod 2011 rotates, it drives the nut 212 to move and approach each other. When the nut 2012 moves, it drives the two sets of clamping seats 203 to move through the movable plate 2013. And move closer to each other. When the two groups of clamping seats 203 are adjusted to a suitable distance, the servo motor 2022 is turned off, and the curtain wall body 204 is inserted between the two groups of clamping seats 203, and the right side of the curtain wall body 204 is directly in contact with the first rubber pad 20311. At this time, the first electric push rod 2032 is controlled to extend, and the first electric push rod 2032 extends to drive the clamping plate 2033 to move toward the direction of the curtain wall body 204 until the second rubber pad 20331 is in direct contact with the left side of the curtain wall body 204, thereby increasing the friction force, making the curtain wall body 204 clamped more tightly, and then the support frame can fix curtain wall bodies 204 of different lengths and widths, thereby improving the universality of the support frame.

[0045] Example 2, refer to Figure 1In this embodiment, based on the same concept as the above-mentioned embodiment 1, the support frame for fixing the building curtain wall also includes: the buffer member 102 includes two groups of grooves 1021, and the two groups of grooves 1021 are respectively opened at the upper end and the lower end of the mounting plate 101 close to the U-shaped frame 103. The inner walls of the two groups of grooves 1021 are fixedly connected with buffer springs 1022, and the two groups of buffer springs 1022 are installed with sliders 1023 on the side close to the center of the mounting plate 101. The two groups of sliders 1023 are installed with movable blocks 1024 on the side close to the U-shaped frame 103. One side of the two groups of movable blocks 1024 is hinged with connecting rods 1025, and the ends of the two groups of connecting rods 1025 away from the movable blocks 1024 are hinged with fixed blocks 1026. The ends of the two groups of fixed blocks 1026 away from the mounting plate 101 are fixedly connected to the ends of the U-shaped frame 103 close to the mounting plate 101, and dampers 1027 are symmetrically installed between the mounting plate 101 and the U-shaped frame 103.

[0046] Specific implementation principle: when the curtain wall body 204 is subjected to lateral wind force, the curtain wall body 204 drives the fixed block 1026 to move toward the direction of the mounting plate 101 through the U-shaped frame 103. When the fixed block 1026 moves, it drives the movable block 1024 to move through the connecting rod 1025. When the movable block 1024 moves, it drives the slider 1023 to slide in the groove 1021 and compresses the buffer spring 1022. At the same time, the damper 1027 contracts, so that the curtain wall body 204 can have a certain displacement capacity when subjected to wind pressure, thereby preventing the curtain wall body 204 from being damaged under wind pressure, thereby extending the service life of the curtain wall body 204.

[0047] Example 3, refer to Figure 1 In this embodiment, based on the same concept as the above-mentioned embodiment 1, the support frame for fixing the building curtain wall also includes that the support member 205 includes two groups of second electric push rods 2051, and the two groups of second electric push rods 2051 are both installed on the end of the U-shaped frame 103 away from the mounting plate 101, and the output ends of the two groups of second electric push rods 2051 are fixedly installed with support plates 2052, and the ends of the two groups of support plates 2052 away from the second electric push rods 2051 are fixedly connected with silicone pads 2053.

[0048] Specific implementation principle: after the curtain wall body 204 is installed, the controller controls the second electric push rod 2051 to extend, and the extension of the second electric push rod 2051 drives the support plate 2052 to move toward the direction of the curtain wall body 204. The movement of the support plate 2052 drives the silicone pad 2053 to move until the silicone pad 2053 is in direct contact with the curtain wall body 204, thereby being able to further support the curtain wall body 204, making the curtain wall body 204 more stable during installation.

[0049] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A support frame for fixing a building curtain wall, characterized in that: include, A support frame assembly (1), comprising a mounting plate (101), a buffer member (102) being provided on one side of the mounting plate (101), and a U-shaped frame (103) being installed on one end of the buffer member (102) away from the mounting plate (101); A curtain wall fixing assembly (2), the curtain wall fixing assembly (2) being arranged on the U-shaped frame (103), comprising an adjusting member (201), the adjusting member (201) being arranged inside the U-shaped frame (103), a driving member (202) being arranged at the top of the U-shaped frame (103), the bottom of the driving member (202) being connected to the top of the adjusting member (201), a clamping seat (203) being arranged at the top and bottom of one end of the adjusting member (201) away from the mounting plate (101), a curtain wall body (204) being placed between two groups of the clamping seats (203), and a supporting member (205) being arranged between the curtain wall body (204) and the U-shaped frame (103).

2. A support frame for fixing a building curtain wall according to claim 1, characterized in that: Fixing bolts (1011) are provided at four corners of the mounting plate (101) on one side close to the U-shaped frame (103).

3. The supporting frame for fixing a building curtain wall according to claim 1, characterized in that: The buffer member (102) comprises two groups of grooves (1021), the two groups of grooves (1021) being respectively arranged at the upper end and the lower end of a side of the mounting plate (101) close to the U-shaped frame (103), the inner walls of the two groups of grooves (1021) being connected to buffer springs (1022), the two groups of buffer springs (1022) being installed with sliders (1023) on one side close to the center of the mounting plate (101), and the two groups of sliders (1023) being installed with movable Blocks (1024), one side of the two groups of movable blocks (1024) is hinged with a connecting rod (1025), one end of the two groups of connecting rods (1025) away from the movable blocks (1024) is hinged with a fixed block (1026), one end of the two groups of fixed blocks (1026) away from the mounting plate (101) is fixedly connected to one end of the U-shaped frame (103) close to the mounting plate (101), and a damper (1027) is symmetrically installed between the mounting plate (101) and the U-shaped frame (103).

4. The supporting frame for fixing a building curtain wall according to claim 1, characterized in that: The adjusting member (201) comprises two groups of bidirectional screw rods (2011), the two groups of bidirectional screw rods (2011) being connected to two ends of the inner cavity of the U-shaped frame (103) via bearings, two ends of the outer walls of the two groups of bidirectional screw rods (2011) being threaded with nuts (2012), and movable plates (2013) being symmetrically mounted on one end of the two groups of nuts (2012) away from the U-shaped frame (103).

5. The supporting frame for fixing a building curtain wall according to claim 4, characterized in that: The driving member (202) comprises an L-shaped plate (2021), wherein the L-shaped plate (2021) is mounted on the top of the U-shaped frame (103), a servo motor (2022) is mounted on the inner top wall of the L-shaped plate (2021), a driving shaft (2023) is mounted on the power output end of the servo motor (2022), a driving pulley (2024) is sleeved on the outer wall of the driving shaft (2023), a driven shaft (2025) is connected to the end of the inner top wall of the L-shaped plate (2021) away from the driving shaft (2023) via a bearing, a driven pulley (2026) is sleeved on the outer wall of the driven shaft (2025), a connecting belt (2027) is provided for external transmission of the driving pulley (2024) and the driven pulley (2026), and the bottoms of the driving shaft (2023) and the driven shaft (2025) are respectively fixedly connected to the tops of two sets of bidirectional screw rods (2011).

6. The supporting frame for fixing a building curtain wall according to claim 4, characterized in that: The clamping seat (203) comprises two groups of clamping seats (2031), the two groups of clamping seats (2031) are both mounted on the ends of the two groups of movable plates (2013) away from the nut (212), the first electric push rods (2032) are both mounted on the side walls on the left sides inside the two groups of clamping seats (2031), and the output ends of the two groups of the first electric push rods (2032) are both mounted with clamping plates (2033).

7. The supporting frame for fixing a building curtain wall according to claim 6, characterized in that: The side walls on the right sides of the two sets of the holders (2031) are both connected to a first rubber pad (20311), and the ends of the two sets of the clamping plates (2033) facing away from the first electric push rod (2032) are both connected to a second rubber pad (20331).

8. The supporting frame for fixing a building curtain wall according to claim 6, characterized in that: A pulley (20332) is installed on one side of the two groups of clamping plates (2033) away from the center of the curtain wall body (204), and a slide rail (20312) that slidably cooperates with the pulley (20332) is provided on the inner side of the two groups of clamping seats (2031).

9. The supporting frame for fixing a building curtain wall according to claim 1, characterized in that: The support member (205) comprises two groups of second electric push rods (2051), the two groups of second electric push rods (2051) are both mounted on one end of the U-shaped frame (103) away from the mounting plate (101), the output ends of the two groups of second electric push rods (2051) are both mounted with support plates (2052), and the ends of the two groups of support plates (2052) away from the second electric push rods (2051) are both connected with silicone pads (2053).

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