AAC plate shearing equipment with adjustable cutting distance

Abstract

The present invention discloses an AAC plate shearing device with adjustable cutting spacing, which relates to the technical field of AAC plate processing, and comprises a base, wherein both left and right sides of the base are provided with a conveying mechanism, and the upper surface of the base is fixedly connected with a gantry, and the inner sides of four groups of gantries are nested and connected with movable plates, the connecting plates are fixedly connected to the lower surface sides of the movable plates, and the inner sides of the connecting plates are fixedly connected with a limit plate. For the AAC plate shearing device with adjustable cutting spacing, a user can start a motor, and at this time the motor can drive a bidirectional threaded rod to rotate, and when the bidirectional threaded rod rotates, it will synchronously drive the lateral thread blocks on the left and right sides to move, and during the movement of the lateral thread blocks, they will synchronously move along the inner side of the limit plate, and at this time the lateral thread blocks will synchronously drive the cutting blades to move by driving the blade frame to move, thereby adjusting the spacing between the cutting blades, thereby meeting different cutting requirements.

Description

Technical Field

[0001] The invention relates to the technical field of AAC plate processing, in particular to an AAC plate shearing device with adjustable cutting spacing. Background Art

[0002] AAC board is made of fly ash (or silica sand), cement, lime and other raw materials, through rust-proof treatment and high temperature, high pressure, steam curing and other processes. The full name is high-performance autoclaved lightweight aerated concrete board. It is a new type of building material with superior performance.

[0003] AAC boards are widely used in exterior wall insulation, partition walls, interior decoration, and fireproof partitions. When AAC boards are used, the size of the boards cannot meet the needs of different usage scenarios. When the boards are used, staff are required to cut the boards to meet the needs of use.

[0004] In order to overcome the above-mentioned defects, prior art 1 (publication number: CN111266644A, Chinese patent with publication date of 2020-06-12) is a plate cutting device, wherein an adjustable sliding mechanism includes a clamp slide groove longitudinally opened on both sides of the cutting turntable, a clamp slide is slidably clamped in the clamp slide groove, the top surface of the clamp slide is vertically fixed with a clamp connecting rod, the top end of the clamp connecting rod is horizontally fixed with a clamp base, the clamp base is located on the top surface of the support seat, the clamp frame is integrally installed on the top surface of the clamp base, the corner threads of the clamp base are threaded with multiple fastening bolts, and the bottom ends of the fastening bolts are against the top surface of the support seat. The cutting angle of the cutting disc provided in the device relative to the plate can be adjusted, and various bevel cutting can be performed on the plate without moving the angle of the plate as a whole, so as to realize cutting actions of various bevel angles of the plate, thereby greatly improving the cutting efficiency of long plates that are inconvenient to move for bevel cutting.

[0005] There is also prior art 2 (publication number: CN115415597B, a Chinese patent with a publication date of 2023-05-23) a metal sheet cutting machine, which opens a driving mechanism to make it contact with a guide mechanism when it slides. When the guide mechanism contacts the sheet, it is convenient to guide it when the sheet is displaced; stepping on the conflicting mechanism drives the fixing mechanism to rotate, so that the limiting mechanism is convenient to limit it when it is engaged inside the conflicting mechanism, and releasing the limiting mechanism fixes the sheet when the fixing mechanism is reset; turning on the control switch of the cutting mechanism, so that it is convenient to cut the sheet when it slides inside the main mechanism, which is beneficial to improve the use effect of the cutting mechanism.

[0006] Although the existing technologies 1 and 2 can be used to cut the plates, the cutting spacing cannot be adjusted in most cases. The cutting equipment with a fixed cutting spacing has great limitations when used and the equipment is not very applicable. At the same time, the existing equipment cannot clean the tool after cutting the plate. The waste generated by the cutting adheres to the surface of the tool and may react with the air, thereby damaging the tool and affecting the subsequent cutting efficiency.

[0007] Therefore, we proposed an AAC plate shearing device with adjustable cutting spacing to solve the above problems. Summary of the invention

[0008] The object of the present invention is to provide an AAC plate shearing device with adjustable cutting spacing, so as to solve the problem raised in the above background technology that the cutting spacing on the market is mostly unable to be adjusted, the cutting equipment with fixed cutting spacing has great limitations when used, the equipment is not highly applicable, and the tool cannot be cleaned after cutting. The waste chips generated by cutting adhere to the surface of the tool and may react with the air, thereby damaging the tool and affecting the subsequent cutting efficiency.

[0009] To achieve the above object, the present invention provides the following technical solution: an AAC plate shearing device with adjustable cutting spacing, comprising a base, a conveying mechanism is arranged on both the left and right sides of the base, a gantry is fixedly connected to the upper surface of the base, and movable plates are nested and connected to the inner sides of four groups of gantry;

[0010] A connecting plate, wherein the connecting plate is fixedly connected to the side of the lower surface of the movable plate, and the inner side of the connecting plate is fixedly connected to a limiting plate, and the inner side of the limiting plate is nested with a transverse thread block, the lower end of the transverse thread block is fixedly connected to a blade frame, and a cutting blade is arranged inside the blade frame, and an adjustment mechanism that can drive the blade frame to move is arranged between the transverse thread block and the connecting plate;

[0011] A dust cleaning pipeline, the dust cleaning pipeline is fixedly connected to the inner side of the blade frame, and a connecting pipe is connected through the outer side of the dust cleaning pipeline, an air bag is fixedly connected to the lower surface of the movable plate, and the air bag is connected through the upper end of the connecting pipe, and an extrusion mechanism capable of supplying air to the dust cleaning pipeline is provided between the lower surface of the air bag and the connecting plate;

[0012] An auxiliary block is fixedly connected to the upper surface of the base, and a baffle is nested in the upper surface of the auxiliary block. A vertical threaded rod is nested on the side of the upper surface of the base, and a pushing mechanism that can drive the baffle to move is provided between the vertical threaded rod and the baffle.

[0013] Preferably, the adjustment mechanism includes a bidirectional threaded rod, which is nested and connected to the connecting plate, and the outer end of the bidirectional threaded rod is fixedly connected to the motor, and the transverse thread blocks on both sides are threadedly connected to the outer side of the bidirectional threaded rod.

[0014] Preferably, the transverse thread block forms a sliding structure through a bidirectional threaded rod and a limiting plate, three transverse thread blocks are provided, and the middle transverse thread block is movably nested and connected at the center position of the bidirectional threaded rod.

[0015] Preferably, the extrusion mechanism includes a vertical groove, which is opened on the inner side of the connecting plate, and a slide plate is nested and connected inside the connecting plate, and a rotating rod is hinged on the lower surface of the slide plate, and the lower end of the rotating rod is hinged on the upper surface of the transverse threaded block, and the upper surface of the slide plate is fixedly connected to the lower surface of the airbag.

[0016] Preferably, the airbag is connected to a dust cleaning pipe via a connecting pipe, and the air blowing port of the dust cleaning pipe is arranged toward the cutting blade, and the connecting pipe is designed as an elastic hose structure.

[0017] Preferably, the rotating rod forms a rotating structure with the slide plate through the transverse threaded block, and the slide plate forms a sliding structure with the rotating rod and the vertical groove, and the width of the slide plate is greater than the maximum value of the airbag width.

[0018] Preferably, a receiving groove is provided inside the auxiliary block, and an ejection block is nested and connected inside the receiving groove, and a spring is fixedly connected between the lower surface of the ejection block and the receiving groove, the outer side of the ejection block is designed to be inclined, and the ejection block forms an elastic structure with the receiving groove through the spring.

[0019] Preferably, the pushing mechanism includes a fixing plate, which is fixedly connected to the lower surface of the connecting plate, and a sleeve rod is fixedly connected to the lower side of the fixing plate, the upper end of the vertical threaded rod is threadedly connected to the inside of the sleeve rod, the outer side of the vertical threaded rod is threadedly connected to a vertical threaded sleeve, and a push rod is hinged on the inner side of the vertical threaded sleeve, and the other end of the push rod is hinged to the baffle.

[0020] Preferably, the push rod forms a sliding structure with the auxiliary block through a vertical threaded sleeve, and the baffle plate can shield the accommodating groove.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The plate can be transported by the conveying mechanism. When the plate is transported to the corresponding position, the conveying can be stopped. The movable plate is driven to move by the hydraulic system inside the device, and the cutting blade is started synchronously to cut the plate from top to bottom. The front and rear conveying mechanisms move outward in both directions to keep a safe gap between the plate and the cutting blade, ensuring that the movable plate rises without resistance after the cutting blade stops to avoid damage to the plate by the cutting blade.

[0023] The user can start the motor, and the motor can drive the bidirectional threaded rod to rotate. When the bidirectional threaded rod rotates, it will synchronously drive the horizontal threaded blocks on the left and right sides to move. During the movement, the horizontal threaded blocks will synchronously move along the inner side of the limit plate. At this time, the horizontal threaded blocks will synchronously drive the blade frame to move and thus drive the cutting blade to move, thereby adjusting the spacing between the cutting blades to meet different cutting requirements.

[0024] When the device is not in use, the motor is started to drive the cutting blade to reset. At this time, the horizontal thread block moves to the middle and pulls the rotating rod synchronously, causing the rotating rod to rotate. When the rotating rod rotates, it will pull the slide synchronously. At this time, the slide will move upward along the vertical groove. When the slide moves upward, it will squeeze the air bag synchronously. At this time, the gas inside the air bag will be transported to the dust cleaning pipeline through the connecting pipe, and sprayed out through the dust cleaning pipeline to blow air to the cutting blade, reducing the phenomenon that the waste generated by cutting remains on the surface of the cutting blade;

[0025] When the movable plate drives the connecting plate to move downward for cutting, the connecting plate will synchronously drive the sleeve rod to move downward through the fixed plate. At this time, the vertical threaded rod can rotate synchronously under the threaded connection with the sleeve rod. When the vertical threaded rod rotates, it will synchronously drive the vertical threaded sleeve to move, and drive the push rod to rotate through the vertical threaded sleeve. At this time, the push rod will push the baffle to move inward, so that the baffle will cover the receiving groove, reducing the exposure of the receiving groove to the outside and the influence of the internal mechanism on the plate cutting operation.

[0026] When the movable plate moves up and resets, the baffle moves outward. At this time, the baffle does not block the receiving groove, and the ejection block inside the receiving groove is not blocked. It will pop outward under the drive of the elastic force of the spring, thereby knocking and resisting the plate, causing the cut plate to be dislocated, thereby making it easier for the staff to take the cut plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the gantry of the present invention;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting plate of the present invention;

[0030] Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of a connecting plate of the present invention;

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the vertical threaded rod of the present invention;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of the connecting pipe of the present invention;

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of the sleeve rod of the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of the auxiliary block of the present invention;

[0035] Fig. 9 This is a schematic diagram of a three-dimensional cross-sectional structure of an auxiliary block of the present invention;

[0036] Fig.10 It is a schematic diagram of the three-dimensional structure of the baffle of the present invention.

[0037] In the figure: 1. conveying mechanism; 2. gantry; 3. movable plate; 4. motor; 5. connecting plate; 6. sleeve rod; 7. vertical threaded rod; 8. auxiliary block; 9. air bag; 10. cutting blade; 11. fixing plate; 12. blade frame; 13. limit plate; 14. two-way threaded rod; 15. connecting pipe; 16. slide plate; 17. rotating rod; 18. horizontal threaded block; 19. dust cleaning pipeline; 20. vertical groove; 21. push rod; 22. receiving groove; 23. baffle; 24. base; 25. ejector block; 26. vertical threaded sleeve; 27. spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Embodiment 1: Figure 1 , Figure 2 , Figure 4 and Figure 5 The technical solution shown in the figure, the present invention provides the following technical solution: an AAC plate shearing device with adjustable cutting spacing, disclosing an adjustment mechanism, through which the cutting spacing can be adjusted:

[0040] A base 24, with conveying mechanisms 1 disposed on both left and right sides of the base 24, and a gantry 2 fixedly connected to the upper surface of the base 24, and movable plates 3 nested inside the four groups of gantry 2;

[0041] A connecting plate 5, the connecting plate 5 is fixedly connected to the side of the lower surface of the movable plate 3, and the inner side of the connecting plate 5 is fixedly connected to the limiting plate 13, and the inner side of the limiting plate 13 is nested with a transverse thread block 18, the lower end of the transverse thread block 18 is fixedly connected to a blade frame 12, and a cutting blade 10 is arranged inside the blade frame 12, and an adjustment mechanism that can drive the blade frame 12 to move is arranged between the transverse thread block 18 and the connecting plate 5;

[0042] The adjusting mechanism includes a bidirectional threaded rod 14, which is nested and connected to the connecting plate 5, and the outer end of the bidirectional threaded rod 14 is fixedly connected to the motor 4, and the transverse thread blocks 18 on both sides are threadedly connected to the outer side of the bidirectional threaded rod 14, and the transverse thread blocks 18 form a sliding structure with the limit plate 13 through the bidirectional threaded rod 14. Three transverse thread blocks 18 are provided, and the middle transverse thread block 18 is movably nested and connected at the center position of the bidirectional threaded rod 14.

[0043] The sheet can be transported by the conveying mechanism 1. When the sheet is transported to the corresponding position, the conveying can be stopped. The movable plate 3 is driven to move by the hydraulic system inside the device, and the cutting blade 10 is started synchronously to cut the sheet from top to bottom. The front and rear conveying mechanisms 1 move outward in both directions to allow the sheet and the cutting blade 10 to maintain a safe gap, ensuring that the movable plate 3 rises without resistance after the cutting blade 10 stops to avoid damage to the sheet by the cutting blade 10. The user can start the motor 4. At this time, the motor 4 can drive the bidirectional threaded rod 14 to rotate. When the bidirectional threaded rod 14 rotates, it will synchronously drive the horizontal threaded blocks 18 on the left and right sides to move. During the movement, the horizontal threaded block 18 will synchronously move along the inner side of the limit plate 13. At this time, the horizontal threaded block 18 will synchronously drive the blade frame 12 to move, thereby driving the cutting blade 10 to move, thereby adjusting the spacing between the cutting blades 10 to meet different cutting requirements.

[0044] Embodiment 2: Figure 1 , Figure 2 , Figure 3 and Figure 6 The technical solution shown in the figure, the present invention provides the following technical solution: an AAC plate shearing device with adjustable cutting spacing, disclosing an extrusion mechanism, through which the waste chips of the cutting blade 10 can be cleaned:

[0045] A dust cleaning pipe 19, the dust cleaning pipe 19 is fixedly connected to the inner side of the blade frame 12, and the outer side of the dust cleaning pipe 19 is penetrated and connected with a connecting pipe 15, the lower surface of the movable plate 3 is fixedly connected with an air bag 9, and the air bag 9 is penetrated and connected with the upper end of the connecting pipe 15, and an extrusion mechanism capable of supplying air to the dust cleaning pipe 19 is provided between the lower surface of the air bag 9 and the connecting plate 5;

[0046] The extrusion mechanism includes a vertical groove 20, which is opened on the inner side of the connecting plate 5, and the connecting plate 5 is nested with a slide plate 16, and the lower surface of the slide plate 16 is hinged with a rotating rod 17, and the lower end of the rotating rod 17 is hinged to the upper surface of the transverse threaded block 18, and the upper surface of the slide plate 16 is fixedly connected to the lower surface of the airbag 9, and the airbag 9 is connected to the cleaning pipe 19 through the connecting pipe 15, and the blowing port of the cleaning pipe 19 is arranged toward the side of the cutting blade 10, and the connecting pipe 15 is designed as an elastic hose structure, the rotating rod 17 and the slide plate 16 form a rotating structure through the transverse threaded block 18, and the slide plate 16 forms a sliding structure with the vertical groove 20 through the rotating rod 17, and the width of the slide plate 16 is greater than the maximum width of the airbag 9.

[0047] When the device is not in use, the starting motor 4 drives the cutting blade 10 to reset. At this time, the horizontal thread block 18 moves to the middle and pulls the rotating rod 17 synchronously, causing the rotating rod 17 to rotate. When the rotating rod 17 rotates, it will synchronously pull the slide plate 16. At this time, the slide plate 16 will move upward along the vertical groove 20. When the slide plate 16 moves upward, it will squeeze the airbag 9 synchronously. At this time, the gas inside the airbag 9 will be transported to the cleaning pipe 19 through the connecting pipe 15, and ejected outward through the cleaning pipe 19 to blow air to the cutting blade 10, thereby reducing the phenomenon that waste chips generated by cutting remain on the surface of the cutting blade 10.

[0048] Embodiment 3: Figure 1 , Figure 2 , Figure 7-Figure 10 The technical solution shown in the figure, the present invention provides the following technical solution: an AAC plate shearing device with adjustable cutting spacing, disclosing a pushing mechanism, through which the state of the ejection block 25 can be changed:

[0049] Auxiliary block 8, the auxiliary block 8 is fixedly connected to the upper surface of the base 24, and the upper surface of the auxiliary block 8 is nested with a baffle 23, the upper surface side of the base 24 is nested with a vertical threaded rod 7, and a pushing mechanism that can drive the baffle 23 to move is provided between the vertical threaded rod 7 and the baffle 23;

[0050] A receiving groove 22 is provided inside the auxiliary block 8, and an ejection block 25 is nested inside the receiving groove 22, and a spring 27 is fixedly connected between the lower surface of the ejection block 25 and the receiving groove 22. The outer side of the ejection block 25 is designed to be inclined, and the ejection block 25 and the receiving groove 22 form an elastic structure through the spring 27. The pushing mechanism includes a fixed plate 11, which is fixedly connected to the lower surface of the connecting plate 5, and a sleeve rod 6 is fixedly connected to the lower side of the fixed plate 11. The upper end of the vertical threaded rod 7 is threadedly connected to the inside of the sleeve rod 6, and the outer side of the vertical threaded rod 7 is threadedly connected to a vertical threaded sleeve 26, and the inner side of the vertical threaded sleeve 26 is hinged with a push rod 21, and the other end of the push rod 21 is hinged on the baffle 23. The push rod 21 forms a sliding structure with the auxiliary block 8 through the vertical threaded sleeve 26, and the baffle 23 can block the receiving groove 22.

[0051] When the movable plate 3 drives the connecting plate 5 to move down for cutting operation, the connecting plate 5 will synchronously drive the sleeve rod 6 to move down through the fixed plate 11. At this time, the vertical threaded rod 7 can be synchronously rotated under the threaded connection with the sleeve rod 6. When the vertical threaded rod 7 rotates, it will synchronously drive the vertical threaded sleeve 26 to move, and drive the push rod 21 to rotate through the vertical threaded sleeve 26. At this time, the push rod 21 will push the baffle plate 23 to move inward, so that the baffle plate 23 will block the receiving groove 22, reducing the direct exposure of the receiving groove 22 to the outside, and the influence of the internal mechanism on the plate cutting operation. When the movable plate 3 moves up and resets, the baffle plate 23 moves outward. At this time, the baffle plate 23 does not block the receiving groove 22, and the ejector block 25 inside the receiving groove 22 is not blocked. It will pop out outward under the driving of the elastic force of the spring 27, thereby knocking and resisting the plate, so that the cut plate is dislocated, which is more convenient for the staff to take the cut plate.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An AAC plate shearing device with adjustable cutting spacing, comprising a base (24), wherein a conveying mechanism (1) is arranged on both left and right sides of the base (24), and a gantry (2) is fixedly connected to the upper surface of the base (24), and movable plates (3) are nested and connected inside four groups of gantry (2); It is characterized in that Shearing equipment also includes: A connecting plate (5), wherein the connecting plate (5) is fixedly connected to the side of the lower surface of the movable plate (3), and the inner side of the connecting plate (5) is fixedly connected to a limiting plate (13), and the inner side of the limiting plate (13) is nested with a transverse threaded block (18), the lower end of the transverse threaded block (18) is fixedly connected to a blade frame (12), and a cutting blade (10) is arranged inside the blade frame (12), and an adjustment mechanism that can drive the blade frame (12) to move is arranged between the transverse threaded block (18) and the connecting plate (5), and the adjustment mechanism includes a bidirectional threaded rod (14), the bidirectional threaded rod (14) is nested and connected to the connecting plate (5), and the outer end of the bidirectional threaded rod (14) is fixedly connected to the motor (4), and the transverse threaded blocks (18) on both sides are threadedly connected to the bidirectional threaded rod (14) The outer side of the movable plate (3) is provided with a sliding structure formed by the transverse threaded block (18) through the bidirectional threaded rod (14) and the limiting plate (13), three transverse threaded blocks (18) are provided, and the transverse threaded block (18) provided in the middle is movably nested and connected at the center position of the bidirectional threaded rod (14), and the outer side of the transverse threaded block (18) provided in the middle is fixedly connected to the center of the limiting plate (13), the inner side of the blade frame (12) is fixedly connected with a dust cleaning pipe (19), and the outer side of the dust cleaning pipe (19) is connected through a connecting pipe (15), the lower surface of the movable plate (3) is fixedly connected with an air bag (9), and the air bag (9) is connected through an upper end of the connecting pipe (15), and an extrusion mechanism capable of supplying air to the dust cleaning pipe (19) is provided between the lower surface of the air bag (9) and the connecting plate (5); The extrusion mechanism comprises a vertical groove (20), the vertical groove (20) is opened on the inner side of the connecting plate (5), and a slide plate (16) is nested and connected inside the connecting plate (5), and a rotating rod (17) is hinged on the lower surface of the slide plate (16), and the lower end of the rotating rod (17) is hinged on the upper surface of the transverse threaded block (18), and the upper surface of the slide plate (16) is fixedly connected to the lower surface of the airbag (9); The upper surface of the base (24) is fixedly connected with an auxiliary block (8), and the upper surface of the auxiliary block (8) is nested with a baffle (23), the side of the upper surface of the base (24) is nested with a vertical threaded rod (7), and a pushing mechanism capable of driving the baffle (23) to move is provided between the vertical threaded rod (7) and the baffle (23), the interior of the auxiliary block (8) is provided with a receiving groove (22), and the interior of the receiving groove (22) is nested with an ejection block (25), and a spring (27) is fixedly connected between the lower surface of the ejection block (25) and the receiving groove (22), the outer side of the ejection block (25) is designed to be inclined, and the ejection block (25) is connected to the receiving groove (22) by the spring (27). The accommodating groove (22) forms an elastic structure, the pushing mechanism comprises a fixing plate (11), the fixing plate (11) is fixedly connected to the lower surface of the connecting plate (5), and the lower side of the fixing plate (11) is fixedly connected to a sleeve rod (6), the upper end of the vertical threaded rod (7) is threadedly connected to the inside of the sleeve rod (6), the outer side of the vertical threaded rod (7) is threadedly connected to a vertical threaded sleeve (26), and the inner side of the vertical threaded sleeve (26) is hinged with a push rod (21), and the other end of the push rod (21) is hinged on a baffle (23), the push rod (21) forms a sliding structure with the auxiliary block (8) through the vertical threaded sleeve (26), and the baffle (23) can shield the accommodating groove (22).

2. The AAC plate shearing device with adjustable cutting distance according to claim 1 is characterized in that: The air bag (9) is connected to the dust cleaning pipe (19) via a connecting pipe (15), and the air blowing port of the dust cleaning pipe (19) is arranged toward the side of the cutting blade (10), and the connecting pipe (15) is designed as an elastic hose structure.

3. The AAC plate shearing device with adjustable cutting distance according to claim 1, characterized in that: The rotating rod (17) forms a rotating structure with the slide plate (16) through the transverse threaded block (18), and the slide plate (16) forms a sliding structure with the rotating rod (17) and the vertical groove (20), and the width of the slide plate (16) is greater than the maximum width of the airbag (9).

Images