Connection mechanism and scissors aerial platform

Abstract

The application discloses a connecting mechanism and a scissors-type aerial work platform, and realizes detachable connection of a bending plate in a connecting seat with a chassis main body and / or a hoisting plate through a first connecting assembly, guarantees the contact area between the connecting seat and the chassis by simultaneously adhering the bending plate to the chassis main body and the hoisting plate, improves assembly reliability, the first aspect can replace the original welding of the connecting seat and the chassis with an assembly type, realizes modular design, and can adjust the overall layout by splitting the connecting seat and the chassis according to actual requirements; the second aspect can detach the connecting seat from the chassis by only removing the first connecting assembly when the connecting seat is damaged or needs to be changed, without damaging the chassis structure, low cost and short cycle; the third aspect can pass the fork frame connecting shaft through the through hole, connect the connecting shaft and the vertical plate, and then install the bending plate on the chassis, so that the assembly difficulty is lower.

Description

Technical Field

[0001] This application relates to the field of aerial work platform technology, and in particular to a connecting mechanism and a scissor lift aerial work platform. Background Technology

[0002] Aerial work platforms are mechanical devices specifically designed to safely lift personnel and materials to a certain height for work. They are widely used in construction, maintenance, installation, cleaning, and other industries that require operations at height.

[0003] Scissor lift aerial work platforms utilize a cross-support structure (similar to the shape of scissors) to provide stable vertical lifting. They are suitable for maintenance and installation work in indoor warehouses, showrooms, shopping malls, and other similar locations; they are also suitable for outdoor operations on flat ground.

[0004] Currently, the connecting plate used to connect the fork and the chassis in scissor lift aerial work platforms is usually welded to the chassis. However, the inventors have discovered that welding the connecting plate to the chassis has at least the following problems: 1. Welding is a permanent connection. If the connecting plate is damaged or design changes are required, the weld must be cut, which may damage the chassis structure. The repair cost is high and the cycle is long. 2. Once the welding position is fixed, it is difficult to adjust the overall layout.

[0005] 3. When connecting the fork carriage to the chassis, the connecting shaft of the fork carriage needs to be aligned with the hole position on the connecting plate on the chassis. The fork carriage as a whole needs to be constantly moved, which makes the assembly difficult. Utility Model Content

[0006] The purpose of this application is to provide a connection mechanism and a scissor lift aerial work platform that can improve at least one of the problems of the above-mentioned welding methods.

[0007] The embodiments of this application can be implemented as follows: In a first aspect, this utility model provides a connecting mechanism for connecting a fork and a chassis, the chassis including a chassis body and a lifting plate disposed on the chassis body; The connection mechanism includes a connection seat and a first connection component; The connecting seat includes a bent plate and a vertical plate that is angled to the inner corner of the bent plate. The bent plate is in contact with both the chassis body and the lifting plate, and the bent plate is detachably connected to the chassis body and / or the lifting plate through the first connecting assembly. The upright plate has a through hole, and the connecting shaft of the fork bracket passes through the through hole and is connected to the upright plate.

[0008] In an optional embodiment, the bent plate is L-shaped and includes a first plate and a second plate connected at an angle, with a rounded transition between the first plate and the second plate, and the upright plate is connected to both the first plate and the second plate; The first plate is detachably connected to the chassis body via the first connecting component, and the second plate is attached to the lifting plate.

[0009] In an optional embodiment, the second plate is provided with an avoidance notch, the shape of which is adapted to the shape of the lifting hole provided on the lifting plate, and the avoidance notch communicates with the lifting hole.

[0010] In an optional embodiment, the bending plate is provided with a first through hole; The first connecting component includes a first fastener and a first washer; The first fastener includes a first head and a first rod connected together, wherein the outer diameter of the first head is larger than the outer diameter of the first rod. The chassis body is provided with a first connecting hole, and the first rod is inserted through the first through hole and locked into the first connecting hole; The first head abuts against the bending plate via the first gasket.

[0011] In an optional embodiment, the number of the first perforation and the first connecting component are the same and correspond one-to-one. The number of the first perforation and the first connecting component are both two or more, and the arrangement direction of two adjacent first perforations is perpendicular to the connecting shaft. And / or, The outer peripheral wall of the first rod has external threads, the first connecting hole is a threaded hole, and the first rod and the first connecting hole are threadedly engaged. And / or, The first gasket includes a first flat washer and a first spring washer stacked together, both of which are fitted over the first rod portion.

[0012] In an optional embodiment, the connecting mechanism further includes a second connecting component, through which the upright plate is detachably connected to the connecting shaft.

[0013] In an optional embodiment, the second connecting component includes a stop pin, a second fastener, and a second washer; The connecting shaft is provided with a second through hole, and the stop pin passes through the second through hole; The stop pin is provided with a third through hole, and the stop pin is located on the side of the upright plate away from the fork frame; The second fastener includes a connected second head and a second rod, wherein the outer diameter of the second head is larger than the outer diameter of the second rod. The upright plate is provided with a second connecting hole, and the second rod portion passes through the third through hole and is locked into the second connecting hole; The second head abuts against the stop pin via the second washer.

[0014] In an optional embodiment, the outer peripheral wall of the second rod has external threads, the second connecting hole is a threaded hole, and the second rod is threadedly engaged with the second connecting hole; And / or, The second washer includes a second flat washer and a second spring washer stacked together, both of which are fitted over the second rod portion.

[0015] In an optional embodiment, the upright plate and the bent plate are welded together.

[0016] Secondly, this utility model provides a scissor lift aerial work platform, including a chassis, a fork, and a connecting mechanism as described in any of the foregoing embodiments for connecting the chassis and the fork.

[0017] Compared with the prior art, the beneficial effects of the embodiments of this application include, for example: The first connecting component enables a detachable connection between the bent plate in the connecting seat and the chassis body and / or the lifting plate. The bent plate simultaneously fits against both the chassis body and the lifting plate to ensure sufficient contact area between the connecting seat and the chassis, improving assembly reliability. Firstly, the connection method between the connecting seat and the chassis can be changed from welding to assembly, achieving a modular design. The connecting seat and chassis can be disassembled and the overall layout adjusted according to actual needs. Secondly, when the connecting seat is damaged or requires design changes, the connecting seat can be removed from the chassis simply by disconnecting the first connecting component, without damaging the chassis structure, resulting in low cost and short cycle time. Thirdly, the forklift connecting shaft can be first inserted through the through hole and connected to the upright plate before installing the bent plate onto the chassis, further simplifying assembly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a scissor lift aerial work platform according to one embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the center fork after it has been deployed; Figure 3 for Figure 1 Enlarged view of region A in the middle; Figure 4 for Figure 2 Exploded view of a local structure in the middle; Figure 5 for Figure 4 A schematic diagram of the connecting seat.

[0020] Icons: 100 - Connecting mechanism; 110 - Connecting seat; 111 - Bending plate; 1110 - First plate; 1111 - Second plate; 1112 - Clearance notch; 1113 - First through hole; 1114 - Second connecting hole; 112 - Vertical plate; 1120 - Through hole; 120 - First connecting assembly; 121 - First fastener; 1210 - First head; 1211 - First rod; 122 - First spring washer; 123-First flat washer; 130-Second connecting assembly; 131-Stop pin; 1310-Third through hole; 132-Second fastener; 1320-Second head; 1321-Second rod; 133-Second spring washer; 134-Second flat washer; 200-Chassis; 210-Chassis body; 220-Lifting plate; 230-Wheel; 300-Fork; 310-Connecting shaft; 311-Second through hole. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] refer to Figure 1 and Figure 2 This application discloses a scissor lift aerial work platform, which includes a fork 300, a chassis 200 and a connecting mechanism 100.

[0029] The chassis 200 includes a chassis body 210, wheels 230, and a lifting platform 220. The chassis body 210 is constructed from at least two rectangular tubes arranged side by side. The wheels 230 are installed on the lower part of the chassis body 210 to enable the entire scissor lift platform to move on the ground. The lifting platform 220 is angled (either perpendicularly right-angled or at an acute angle) to the chassis body 210. The lifting platform 220 has lifting holes for construction machinery to hook onto and lift the entire scissor lift platform.

[0030] The lifting plate 220 and the chassis body 210 can be welded together to ensure the connection strength and reliability of the two. In addition, the lifting plate 220 and the chassis body 210 can also be integrally formed or separately connected, as long as the lifting plate 220 and the chassis body 210 remain relatively fixed.

[0031] The connecting shaft 310 of the fork 300 is connected to the chassis body 210 via the connecting mechanism 100.

[0032] Of course, in some embodiments not shown, the chassis body 210 may also be constructed from a single piece of steel plate or other plate material.

[0033] The connecting mechanism 100 is used to connect the fork carriage 300 and the chassis 200. For details, please refer to [reference needed]. Figure 3 and Figure 4 The connecting mechanism 100 includes a connecting seat 110 and a first connecting component 120; The connecting seat 110 includes a bent plate 111 and a vertical plate 112 that is angled to the inner corner of the bent plate 111. The bent plate 111 is in contact with both the chassis body 210 and the lifting plate 220. The bent plate 111 is detachably connected to the chassis body 210 and / or the lifting plate 220 through the first connecting assembly 120. That is, the bent plate 111 can be detachably connected only to the chassis body 210, or only to the lifting plate 220, or simultaneously to both the chassis body 210 and the lifting plate 220. The upright plate 112 is provided with a through hole 1120, and the connecting shaft 310 of the fork 300 passes through the through hole 1120 and is connected to the upright plate 112.

[0034] As described above, in this embodiment, the first connecting component 120 enables a detachable connection between the bent plate 111 in the connecting seat 110 and the chassis body 210 and / or the lifting plate 220. The bent plate 111 simultaneously fits against both the chassis body 210 and the lifting plate 220 to ensure sufficient contact area between the connecting seat 110 and the chassis 200, thus improving assembly reliability. Firstly, the connection method between the connecting seat 110 and the chassis 200 can be changed from welding to assembly, achieving a modular design that can be customized according to actual needs. Firstly, the overall layout can be adjusted after separating the connecting seat 110 from the chassis 200. Secondly, if the connecting seat 110 is damaged or needs to be redesigned, the connecting seat 110 can be removed from the chassis 200 simply by disconnecting the first connecting component 120, without damaging the chassis 200 structure, which is low-cost and quick. Thirdly, the connecting shaft 310 of the fork 300 can be inserted through the through hole 1120 and the connecting shaft 310 and the upright plate 112 can be connected before installing the bending plate 111 onto the chassis 200, which makes assembly easier.

[0035] For details, please refer to Figure 4The bent plate 111 is roughly L-shaped. The bent plate 111 includes a first plate 1110 and a second plate 1111 connected at an angle. The first plate 1110 and the second plate 1111 have a rounded transition. The upright plate 112 is connected to both the first plate 1110 and the second plate 1111. The first plate 1110 is detachably connected to the chassis body 210 through the first connecting assembly 120. The second plate 1111 is attached to the lifting plate 220.

[0036] In this way, the first plate 1110 of the bent plate 111 is detachably connected to the chassis body 210 through the first connecting component 120 to achieve the assembly of the connecting seat 110 and the chassis 200. The second plate 1111 fits against the lifting plate 220 to provide support and positioning reference during assembly, taking into account the strength, stability and ease of assembly of the connection between the connecting seat 110 and the chassis 200. The rounded transition between the first plate 1110 and the second plate 1111 can effectively reduce stress concentration, improve the fatigue resistance and load-bearing capacity of the connecting seat 110 under stress, and at the same time improve safety and appearance quality.

[0037] The upright plate 112 and the bent plate 111 are welded together to ensure the connection strength between the bent plate 111 and the upright plate 112. Alternatively, the upright plate 112 and the bent plate 111 can be integrally formed.

[0038] The second plate 1111 is provided with a clearance notch 1112. The shape of the clearance notch 1112 is adapted to the shape of the hoisting hole provided on the hoisting plate 220. The clearance notch 1112 is connected to the hoisting hole. This design of the clearance notch 1112 can prevent the second plate 1111 of the bent plate 111 from blocking the hoisting hole, so as to ensure normal hoisting.

[0039] It should be noted that, depending on the specific design location of the lifting hole, the overlapping area between the second plate 1111 and the lifting hole will also be different. For example, in the embodiment shown in the figure, the lifting hole is a waist-shaped hole, and the second plate 1111 covers part of the lifting hole. In this case, the avoidance notch 1112 is designed to be arc-shaped to match the arc-shaped inner wall of the lifting hole.

[0040] Of course, in some embodiments, if the lifting hole does not coincide with the second plate 1111, then the avoidance notch 1112 may not be designed. In addition, the second plate 1111 can also be detachably connected to the lifting plate 220 through the first connecting assembly 120.

[0041] Continue to refer to Figures 3 to 5 In this embodiment, the bending plate 111 is provided with a first through hole 1113; the first connecting assembly 120 includes a first fastener 121 and a first gasket; The first fastener 121 includes a first head 1210 and a first rod 1211 connected together, wherein the outer diameter of the first head 1210 is larger than the outer diameter of the first rod 1211. The chassis body 210 is provided with a first connecting hole, and the first rod portion 1211 passes through the first through hole 1113 and is locked into the first connecting hole; The first head 1210 abuts against the bending plate 111 via the first gasket.

[0042] In this way, the first fastener 121 is connected and fixed to the chassis body 210 by passing the first rod 1211 through the first through hole 1113 and locking it into the first connecting hole. Since the outer diameter of the first head 1210 is larger than the outer diameter of the first rod 1211, the first head 1210 can abut against the bending plate 111 through the first washer, thereby pressing the bending plate 111 onto the chassis body 210. The first washer can protect the first head 1210 and the bending plate 111, avoid direct compression that could cause deformation of the bending plate 111 and the first head 1210, and also have an anti-loosening effect.

[0043] The number of first perforations 1113 and first connecting components 120 are the same and correspond one-to-one. There are more than two of each of the first perforations 1113 and first connecting components 120, and the arrangement direction of two adjacent first perforations 1113 is perpendicular to the connecting shaft 310. In this way, the connection between the connecting seat 110 and the chassis 200 is achieved through two or more first connecting components 120, thereby ensuring the connection strength and reliability of the fork 300 and the chassis 200. The arrangement direction of two adjacent first perforations 1113 is perpendicular to the connecting shaft 310, which ensures that the force applied by the connecting shaft 310 is evenly distributed on the chassis 200, improving the operational stability.

[0044] The shape of the first perforation 1113 is not specifically limited; it can be a round hole or an oblong hole.

[0045] The outer peripheral wall of the first rod 1211 has external threads, and the first connecting hole is a threaded hole. The first rod 1211 and the first connecting hole are threaded together, so that the connecting seat 110 and the chassis 200 can be detached by means of screw connection, which is convenient for disassembly and assembly.

[0046] The first washer includes a first flat washer 123 and a first spring washer 122 stacked together. Both the first flat washer 123 and the first spring washer 122 are fitted over the first rod portion 1211. The function of the first spring washer 122 is to generate anti-loosening friction through elastic deformation. The first flat washer 123 can provide a flat and wear-resistant support surface, allowing the elastic force of the first spring washer 122 to be evenly applied to the bending plate 111 or the first head 1210. The first flat washer 123 is closer to the first head 1210 relative to the first spring washer 122, or the first spring washer 122 may be closer to the first head 1210 relative to the first flat washer 123.

[0047] It is understandable that in some embodiments, the first rod portion 1211 may not have external threads and may be directly fixed to the first connecting hole by interference fit.

[0048] In addition, the first connecting component 120 can also use cylindrical pins, conical pins, cotter pins, snap fasteners, etc. to connect the connecting seat 110 to the chassis 200.

[0049] Continue to refer to Figures 3 to 5 The connecting mechanism 100 also includes a second connecting component 130. The upright plate 112 is detachably connected to the connecting shaft 310 through the second connecting component 130. In this way, the connecting seat 110 and the fork 300 are also assembly structures, further realizing modular design. Therefore, the fork 300 connecting shaft 310 can be assembled with the connecting shaft 310 before being assembled with the chassis 200, which further reduces the assembly difficulty and is also conducive to maintenance.

[0050] In detail, the second connecting assembly 130 includes a stop pin 131, a second fastener 132, and a second washer; The connecting shaft 310 is provided with a second through hole 311, and the stop pin 131 passes through the second through hole 311; The stop pin 131 is provided with a third through hole 1310, and the stop pin 131 is located on the side of the upright plate 112 away from the fork 300; The second fastener 132 includes a connected second head 1320 and a second rod portion 1321, wherein the outer diameter of the second head 1320 is larger than the outer diameter of the second rod portion 1321. The upright plate 112 is provided with a second connecting hole 1114, and the second rod portion 1321 passes through the third through hole 1310 and is locked into the second connecting hole 1114; The second head 1320 abuts against the stop pin 131 via the second washer.

[0051] In this way, by inserting the stop pin 131 through the second through hole 1120, the stop pin 131 is opposite to the upright plate 112 and located on the side of the upright plate 112 away from the fork 300. This restricts the axial movement of the connecting shaft 310 within the through hole 1120, thus achieving a limiting effect. The second rod portion 1321 passes through the third through hole 1310 and locks into the second connecting hole 1114, which enables the connection and fixation of the second fastener 132 and the upright plate 112. Since the outer diameter of the second head 1320 is larger than the outer diameter of the second rod portion 1321, the second head 1320 can abut against the stop pin 131 through the second washer, thereby pressing the stop pin 131 onto the upright plate 112. The second washer can protect the second head 1320 and the stop pin 131, preventing direct compression from deforming the stop pin 131 and the second head 1320, and also has an anti-loosening effect.

[0052] The outer peripheral wall of the second rod 1321 has external threads, and the second connecting hole 1114 is a threaded hole. The second rod 1321 and the second connecting hole 1114 are threadedly engaged. In this way, the stop pin 131 and the upright plate 112 are detachably connected by screwing, thereby realizing the detachable connection between the connecting seat 110 and the connecting shaft 310 of the fork 300, which is convenient for disassembly and assembly.

[0053] The second washer includes a stacked second flat washer 134 and a second spring washer 133, both of which are fitted over the second rod portion 1321. The function of the second spring washer 133 is to generate anti-loosening friction through elastic deformation, while the second flat washer 134 provides a flat, wear-resistant support surface, allowing the elastic force of the second spring washer 133 to be evenly applied to the upright plate 112 or the second head 1320. The second flat washer 134 is closer to the second head 1320 relative to the second spring washer 133, or the second spring washer 133 may be closer to the second head 1320 relative to the second flat washer 134.

[0054] It is understandable that in some embodiments, the second rod portion 1321 may not have external threads and may be directly fixed to the second connecting hole 1114 by interference fit.

[0055] In addition, the second connecting assembly 130 can also use cylindrical pins, tapered pins, cotter pins, snap fasteners, etc. to connect the stop pin 131 to the upright plate 112. The upright plate 112 and the connecting shaft 310 can also be connected by welding, bonding, etc.

[0056] In summary, this application discloses a connecting mechanism 100 and a scissor lift aerial work platform, which have at least the following advantages compared to the prior art: 1. The connection method of the connecting seat 110 connecting the chassis 200 and the fork 300 has been changed from welding to assembly, which can adjust the overall layout and has advantages for modular design; 2. Welding is a permanent connection. If the connecting plate is damaged or design changes are required, the weld must be cut, which may damage the chassis main body 210 structure. The maintenance cost is high and the cycle is long. The assembly type only needs to replace the corresponding connecting seat 110 parts, which reduces maintenance cost and maintenance time. 3. The existing method of welding the fork carriage 300 to the chassis 200 requires aligning the holes of the fork carriage 300 and the chassis 200 when assembling the connecting shaft 310 of the fork carriage 300 for installation. However, the assembly method of connecting the fork carriage 300 and the chassis 200 can be used, which allows the fork carriage 300 to be assembled with the connecting seat 110 first, and then assembled with the chassis 200, reducing the assembly difficulty.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A connecting mechanism for connecting a fork (300) and a chassis (200), characterized in that, The chassis (200) includes a chassis body (210) and a lifting plate (220) disposed on the chassis body (210). The connecting mechanism includes a connecting seat (110) and a first connecting component (120); The connecting seat (110) includes a bent plate (111) and a vertical plate (112) that is angled to the inner corner of the bent plate (111). The bent plate (111) is in contact with both the chassis body (210) and the lifting plate (220), and the bent plate (111) is detachably connected to the chassis body (210) and / or the lifting plate (220) through the first connecting assembly (120). The upright plate (112) is provided with a through hole (1120), and the connecting shaft (310) of the fork (300) passes through the through hole (1120) and is connected to the upright plate (112).

2. The connecting mechanism according to claim 1, characterized in that, The bending plate (111) is L-shaped and includes a first plate (1110) and a second plate (1111) connected at an angle. The first plate (1110) and the second plate (1111) are rounded. The upright plate (112) is connected to both the first plate (1110) and the second plate (1111). The first plate (1110) is detachably connected to the chassis body (210) via the first connecting assembly (120), and the second plate (1111) is attached to the lifting plate (220).

3. The connecting mechanism according to claim 2, characterized in that, The second plate (1111) is provided with a clearance notch (1112), the shape of which is adapted to the shape of the hoisting hole provided on the hoisting plate (220), and the clearance notch (1112) is connected to the hoisting hole.

4. The connecting mechanism according to claim 1, characterized in that, The bending plate (111) is provided with a first through hole (1113); The first connecting assembly (120) includes a first fastener (121) and a first gasket; The first fastener (121) includes a first head (1210) and a first rod (1211) connected together, wherein the outer diameter of the first head (1210) is larger than the outer diameter of the first rod (1211); The chassis body (210) is provided with a first connecting hole, and the first rod (1211) passes through the first through hole (1113) and locks into the first connecting hole; The first head (1210) abuts against the bending plate (111) via the first gasket.

5. The connecting mechanism according to claim 4, characterized in that, The number of the first perforation (1113) and the first connecting component (120) are the same and correspond one-to-one. The number of the first perforation (1113) and the first connecting component (120) are both more than two, and the arrangement direction of two adjacent first perforations (1113) is perpendicular to the connecting shaft (310). And / or, The outer peripheral wall of the first rod (1211) has external threads, the first connecting hole is a threaded hole, and the first rod (1211) and the first connecting hole are threadedly engaged; And / or, The first gasket includes a first flat washer (123) and a first spring washer (122) stacked together, both of which are fitted over the first rod portion (1211).

6. The connecting mechanism according to claim 1, characterized in that, The connecting mechanism further includes a second connecting component (130), through which the upright plate (112) is detachably connected to the connecting shaft (310).

7. The connecting mechanism according to claim 6, characterized in that, The second connecting assembly (130) includes a stop pin (131), a second fastener (132), and a second washer; The connecting shaft (310) is provided with a second through hole (311), and the stop pin (131) passes through the second through hole (311). The stop pin (131) is provided with a third through hole (1310), and the stop pin (131) is located on the side of the upright plate (112) away from the fork (300); The second fastener (132) includes a connected second head (1320) and a second rod (1321), wherein the outer diameter of the second head (1320) is larger than the outer diameter of the second rod (1321); The upright plate (112) is provided with a second connecting hole (1114), and the second rod (1321) passes through the third through hole (1310) and locks into the second connecting hole (1114). The second head (1320) abuts against the stop pin (131) via the second gasket.

8. The connecting mechanism according to claim 7, characterized in that, The outer peripheral wall of the second rod (1321) has external threads, and the second connecting hole (1114) is a threaded hole. The second rod (1321) is threadedly engaged with the second connecting hole (1114). And / or, The second washer includes a second flat washer (134) and a second spring washer (133) stacked together, both of which are fitted over the second rod portion (1321).

9. The connecting mechanism according to claim 1, characterized in that, The upright plate (112) and the bent plate (111) are welded together.

10. A scissor lift aerial work platform, characterized in that, The system includes a chassis (200), a fork (300), and a connection mechanism as described in any one of claims 1-9 for connecting the chassis (200) and the fork (300).

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