Liftable sunshade mechanism and mower

Abstract

The utility model discloses a liftable sunshade mechanism, which belongs to the field of mowers, solves the problem that the existing liftable sunshade is inconvenient to lift, and adopts the technical scheme that the liftable sunshade mechanism comprises a ceiling and at least two support frames which are connected in a sliding manner along the vertical direction, and the ceiling is arranged on the support frame at the uppermost end; each supporting frame comprises at least two supporting stand columns distributed in the transverse direction, guide rails are arranged on all the supporting stand columns on each supporting frame, the adjacent supporting frames are connected with the guide rails in a sliding mode, and at least two locking pieces used for locking the adjacent supporting frames and the guide rails are further arranged on the supporting frames. The sunshade mechanism further comprises a synchronous operation piece for connecting all the locking pieces on the same supporting frame, and the synchronous operation piece can drive all the locking pieces to move synchronously. According to the utility model, the lifting of the sunshade is more convenient. The utility model further discloses a mower which comprises a machine shell and a blade assembly, and the liftable sunshade mechanism is arranged on the machine shell.

Description

Technical Field

[0001] This utility model relates to the field of lawnmowers, and in particular to a liftable sunshade mechanism and a lawnmower. Background Technology

[0002] To provide operators with a comfortable and relaxed driving environment, and to provide them with shade and rain protection, existing technologies often incorporate adjustable sunshade mechanisms on lawnmowers. For example, utility model patent CN219288109U discloses a foldable agricultural machinery canopy structure, including a frame. A sunshade is fixedly connected to the front wall of the frame. Adjustment seats are symmetrically arranged on the rear side of the lower end of the frame. Adjustment structures are connected to the rear sides of the two adjustment seats, each including an adjustment column. A connecting seat is fixedly connected to the top of the adjustment column. A connecting hole is located at the center of the front side wall of the connecting seat. The front side wall of the connecting seat is hinged to the interior of the adjustment seat. A fixing bolt is located at the center of one side wall of the adjustment seat. One end of the fixing bolt passes through the connecting hole on the side wall of both the adjustment seat and the connecting seat, and the end is threaded with a fixing nut. When adjusting the height of the sunshade, the operator must individually unlock the fixing nuts on the two adjustment columns, increasing the adjustment time and complexity. Utility Model Content

[0003] The purpose of this invention is to provide a height-adjustable sunshade mechanism, which solves the problem of inconvenient lifting and lowering of existing height-adjustable sunshades, making the lifting and lowering of sunshades more convenient.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a liftable sunshade mechanism, comprising a roof and at least two support frames slidably connected vertically, the roof being disposed on the uppermost support frame, each support frame comprising at least two support columns distributed horizontally, all support columns on each support frame being provided with guide rails, adjacent support frames being slidably connected to the guide rails, and each support frame also being provided with at least two locking members for locking adjacent support frames to the guide rails, the sunshade mechanism further comprising a synchronization operation member connecting all locking members on the same support frame, the synchronization operation member being able to drive all locking members to move synchronously.

[0005] After adopting the above technical solution, this utility model has the following advantages: Multiple support columns distributed horizontally enhance the overall load-bearing capacity and stability of the support frame. In strong winds, multiple support columns can provide support for the sunshade from different directions, effectively reducing the risk of the sunshade tilting or collapsing due to uneven force. Secondly, by setting synchronous operation components to connect all locking components on the same support frame, the operator only needs to perform one operation to unlock or lock all locking components simultaneously. This greatly simplifies the height adjustment process, improves efficiency, and enhances the overall user experience. Since all locking components can move synchronously, the problem of one side unlocking or locking first due to individual operation is avoided, thereby reducing the risk of the sunshade tilting or becoming asymmetrical during adjustment and ensuring the safety and stability of use.

[0006] Furthermore, the number of support frames is at least three, and each pair of adjacent support frames is provided with a vertical adjustment structure, with different vertical adjustment structures having different adjustment ranges.

[0007] By adopting the aforementioned technical solution, at least three vertically sliding support frames are installed. Since different vertical adjustment structures have different adjustment ranges, users can flexibly choose the adjustment method according to their needs. For example, in scenarios requiring a rapid change in the height of the sunshade, such as when large agricultural machinery needs to pass, the vertical adjustment structure with a large adjustment range can be quickly activated to achieve a significant height increase in one step. After the initial adjustment, to precisely adapt to a specific environment, such as when conducting outdoor measurements with strict light requirements, the system can be switched to the vertical adjustment structure with a small adjustment range for fine calibration. This method of coarse adjustment followed by fine adjustment eliminates the complex and cumbersome process of traditional adjustment methods, effectively avoiding the problem of inaccurate adjustment in traditional methods. It allows for more convenient and precise control of the sunshade height, enabling the sunshade to better meet different working environments and individual needs, providing users with a superior user experience.

[0008] Furthermore, one of the vertical adjustment structures has multiple adjustment levels, and the sum of the adjustment levels of all levels of the other vertical adjustment structure is less than the adjustment level of a single level of the other vertical adjustment structure.

[0009] Using the aforementioned technical solution, a vertical adjustment structure with multiple adjustment levels can provide coarse height adjustment, quickly positioning the approximate required height. Since the sum of the adjustment levels of all levels of another vertical adjustment structure is less than the adjustment level of a single level of one of the vertical adjustment structures, the user can switch to this structure for fine-tuning, with smaller adjustment amounts and faster adjustment.

[0010] Furthermore, the locking member is tightly attached to the guide rail to form frictional resistance with the guide rail. The two adjacent support frames maintain their relative positions under the action of frictional resistance, and the locking member is driven to move to overcome the frictional resistance, so that vertical sliding occurs between the two adjacent support frames.

[0011] By adopting the aforementioned technical solution, due to the existence of frictional resistance, users can continuously adjust the height of the sunshade by applying appropriate force, without relying on fixed positioning holes or gears, thus achieving stepless adjustment. Once the force is stopped, the frictional resistance will automatically fix the sunshade in the current position, allowing the sunshade to stop more precisely at the required height, making the operation simpler.

[0012] Furthermore, the canopy and the support frame are fixedly connected, all the support columns are connected by gripping parts, and the synchronous operating component is provided on the support frame that is fixedly connected to the canopy.

[0013] With the above technical solution, all support columns are connected by gripping parts. Users can move all support columns synchronously by grasping the gripping parts, avoiding the "blind spots" of separate operation of different support columns. It is simple, convenient and easy to operate, and also strengthens the connection between each support column, thereby enhancing the overall rigidity and stability of the entire sunshade mechanism.

[0014] Furthermore, the gripping part and the synchronization operation element are positioned adjacent to or close to each other.

[0015] By using the above technical solution, the gripping part and the synchronous operating component are positioned adjacent to or close to each other. Users can easily reach the synchronous operating component while gripping the gripping part, and can easily operate the gripping part and the synchronous operating component at the same time, thereby efficiently adjusting the height of the sunshade and making the height adjustment of the sunshade more convenient.

[0016] Furthermore, the guide rail includes an outer guide rail and an inner guide rail, the inner guide rail is sleeved inside the outer guide rail, the outer guide rail is fixedly connected to one of the adjacent support frames, and the inner guide rail is fixedly connected to the other adjacent support frame.

[0017] By adopting the aforementioned technical solution, the inner guide rail is sleeved inside the outer guide rail, which provides better guidance and reduces offset or shaking during the sliding process, making the vertical sliding between the support frames smoother.

[0018] Furthermore, the vertical adjustment structure includes a plurality of first positioning holes disposed on one of the adjacent support frames with gaps along the vertical direction, and a second positioning hole that cooperates with the first positioning holes on the other adjacent support frame. The first positioning holes and the second positioning holes are connected by positioning pins.

[0019] The above technical solution provides a fixed height adjustment value for the sunshade through multiple first positioning holes spaced along the vertical direction, which allows the sunshade to be precisely adjusted to a specific height.

[0020] Furthermore, at least two positioning pins are provided, and at least two positioning pins simultaneously connect the two support frames.

[0021] Through the above technical solution, the design of multiple positioning pins allows the load of the sunshade mechanism to be distributed more evenly on each positioning pin, making the connection between the support frame more reliable. Even in the event of strong winds or other external forces, it can effectively prevent the sunshade from tilting or swaying.

[0022] Another objective of this utility model is to provide a lawnmower, including a housing and a blade assembly, and also including the liftable sunshade mechanism described in any of the above technical solutions.

[0023] Through the above technical solutions, the height-adjustable sunshade provides operators with better sun and rain protection, and the height adjustment of the sunshade is more convenient and accurate. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the height-adjustable sunshade mechanism in Embodiment 1 of this utility model;

[0026] Figure 2 This is a structural schematic diagram of another liftable sunshade mechanism according to Embodiment 1 of this utility model;

[0027] Figure 3 This is a partial structural schematic diagram of the liftable sunshade mechanism in Embodiment 1 of this utility model;

[0028] Figure 4 This is a schematic diagram of the lawnmower in Embodiment 2 of this utility model;

[0029] In the diagram, 10 is the canopy; 20 is the support frame; 21 is the support column; 22 is the gripper; 30 is the guide rail; 301 is the outer guide rail; 302 is the inner guide rail; 31 is the locking element; 32 is the synchronous operation element; 33 is the first positioning hole; 34 is the positioning pin; 40 is the housing; and 41 is the blade assembly. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0031] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein.

[0032] It should be understood that in the various embodiments of this utility model, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0033] It should be understood that in this invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0034] It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0035] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0036] Example 1:

[0037] like Figures 1 to 3As shown, this utility model provides a liftable sunshade mechanism, including a canopy 10 and at least two vertically slidably connected support frames 20. The canopy 10 is mounted on the uppermost support frame 20. Each support frame 20 includes at least two horizontally distributed support columns 21. All support columns 21 on each support frame 20 are provided with guide rails 30. Adjacent support frames 20 are slidably connected to the guide rails 30. The support frame 20 is also provided with at least two locking members 31 for locking adjacent support frames 20 to the guide rails 30. The sunshade mechanism also includes a synchronous operation member 32 that connects all locking members 31 on the same support frame 20. The synchronous operation member 32 can drive all locking members 31 to move synchronously.

[0038] Multiple horizontally distributed support columns 21 enhance the overall load-bearing capacity and stability of the support frame 20. In strong winds, multiple support columns 21 can provide support for the sunshade from different directions, effectively reducing the risk of the sunshade tilting or collapsing due to uneven stress. Secondly, by setting up a synchronous operation component 32 to connect all locking components 31 on the same support frame 20, the operator only needs to perform one operation to unlock or lock all locking components 31 at the same time. This greatly simplifies the height adjustment process, improves efficiency, and enhances the overall user experience. Since all locking components 31 can move synchronously, the problem of one side unlocking or locking first due to individual operation is avoided, thereby reducing the risk of the sunshade tilting or becoming asymmetrical during adjustment and ensuring the safety and stability of use.

[0039] Furthermore, there are at least three support frames 20, each with a vertical adjustment structure between adjacent support frames 20. Different vertical adjustment structures offer different adjustment ranges, allowing users to flexibly choose the adjustment method according to their needs. For example, in scenarios requiring a rapid change in the shade's height, such as when large agricultural machinery needs to pass, a large-range vertical adjustment structure can be quickly activated to achieve a significant height increase in one step. After the initial adjustment, to precisely adapt to specific environments, such as outdoor measurement work with strict light requirements, the system can be switched to a small-range vertical adjustment structure for fine calibration. This method of coarse adjustment followed by fine adjustment eliminates the complex and cumbersome process of traditional adjustment methods, effectively avoiding the difficulty in precise adjustment found in traditional methods. It allows for more convenient and accurate control of the shade's height, enabling the shade to better meet different working environments and individual needs, providing users with a superior user experience.

[0040] To further improve adjustment accuracy, one vertical adjustment mechanism has multiple adjustment levels, while the sum of the adjustment levels of the other vertical adjustment mechanism is less than the adjustment level of a single level in the first mechanism. The vertical adjustment mechanism with multiple adjustment levels can provide coarse height adjustments, quickly positioning the approximate desired height. Because the sum of the adjustment levels of the other vertical adjustment mechanism is less than the adjustment level of a single level in the first mechanism, the user can switch to that mechanism for fine-tuning, with smaller adjustment increments and faster adjustment.

[0041] The locking element 31 is tightly attached to the guide rail 30, creating frictional resistance between them. Adjacent support frames 20 maintain their relative positions under the influence of this frictional resistance. Driving the locking element 31 to move overcomes this frictional resistance, allowing vertical sliding between adjacent support frames 20. Users can continuously adjust the height of the awning by applying appropriate force, without relying on fixed positioning holes or stops, achieving stepless adjustment. Once the force is stopped, the frictional resistance automatically fixes the awning in its current position, allowing for more precise positioning at the desired height, simplifying operation. When raising the awning, the operator does not need to adjust the locking elements 31 on each support column 21 individually. A single movement of the synchronous operating element 32 overcomes the frictional resistance between all locking elements 31 and the guide rail 30, allowing all support columns 21 of adjacent support frames 20 to slide vertically along the guide rail 30 simultaneously, achieving rapid overall adjustment of the awning. Once the force is stopped, the frictional resistance automatically fixes the awning in its current position, allowing for more precise positioning at the desired height. The entire operation process is simpler and more efficient, greatly improving the user experience.

[0042] The guide rail 30 includes an outer guide rail 301 and an inner guide rail 302. The inner guide rail 302 is fitted inside the outer guide rail 301. The outer guide rail 301 is fixedly connected to one of the adjacent support frames 20, and the inner guide rail 302 is fixedly connected to the other adjacent support frame 20. The outer guide rail 301 and the inner guide rail 302 provide better guidance, reduce the offset or swaying of the support columns 21 during the sliding process, and make the vertical sliding between the support columns 21 smoother. The outer guide rail 301 has a through hole through which the locking member 31 passes. The locking member 31 is fixedly connected to the outer guide rail 301 and passes through the through hole, located between the outer guide rail 301 and the inner guide rail 302. The locking member 31 is tightly attached to the inner guide rail 302 to form frictional resistance. Under the action of frictional resistance, the inner guide rail 302 and the outer guide rail 301 maintain a constant relative position. By pulling the locking member 31 with an external force to overcome the frictional resistance, vertical sliding occurs between the inner guide rail 302 and the outer guide rail 301, thereby adjusting the position between two adjacent support frames 20 and changing the height of the sunshade. The locking member can be a friction block with a rough surface.

[0043] Furthermore, the canopy 10 and the support frame 20 are fixedly connected. All the support columns 21 of each support frame 20 are connected by gripping parts 22. The synchronous operation part 32 is set on the support frame 20 fixedly connected to the canopy 10. The user can move all the support columns 21 synchronously by grasping the gripping parts 22, avoiding the "blind spots" of separate operation of different support columns 21. It is simple, convenient and easy to operate, and also strengthens the connection between each support column 21, thereby enhancing the overall rigidity and stability of the entire sunshade mechanism.

[0044] For ease of operation, the grip 22 and the synchronous operation component 32 are positioned close to each other, allowing the user to easily reach the synchronous operation component 32 while gripping the grip 22. This enables the user to easily operate the grip 22 and the synchronous operation component 32 simultaneously, thereby efficiently adjusting the height of the sunshade and making the height adjustment of the sunshade more convenient.

[0045] In another embodiment, the vertical adjustment structure includes a plurality of first positioning holes 33 spaced vertically on one of the adjacent support frames 20, and a second positioning hole on the other adjacent support frame 20 that mates with the first positioning holes 33. The first positioning holes 33 and the second positioning hole are connected by a positioning pin 34. The plurality of first positioning holes 33 spaced vertically provide a fixed height adjustment value for the sunshade, allowing it to be precisely adjusted to a specific height. The user first pulls the positioning pin 34 out of at least one of the first or second positioning holes, then moves the support frame 20, and then reinserts the positioning pin 34 to complete the initial height adjustment of the sunshade. The entire process is simpler and more intuitive, requiring no complex tools or steps. This greatly simplifies the operation process and improves user convenience.

[0046] In strong winds, a single positioning pin 34 may loosen or deform due to excessive local stress. To improve structural strength, this application provides at least two positioning pins 34, which simultaneously connect two support frames 20. The design of multiple positioning pins 34 allows the load to be distributed more evenly across each pin 34, making the connection between the support frames 20 more reliable. Even in strong winds or other external forces, it can effectively prevent the sunshade from tilting or swaying.

[0047] In this embodiment, the canopy 10 includes a foldable support frame and a tarpaulin mounted on the support frame. The canopy 10 has various structures, specifically as follows: Figure 1 As shown, it can also be as follows Figure 2As shown. There are three support frames 20. The canopy 10 is fixed to the uppermost support frame 20. There are two vertical adjustment structures. One of these structures is the stepless guide rail structure described in the previous embodiment, located between the uppermost support frame 20 and the adjacent support frame 20. Each support frame 20 includes two horizontally distributed support columns 21. Two locking elements 31 are provided. The outer guide rail 301 is fixedly connected to the uppermost support frame 20 and to the inner guide rail 302. The other vertical adjustment structure is the fixed value adjustment structure described in the previous embodiment, located between the bottommost support frame 20 and the adjacent support frame 20. Two adjacent support frames 20 are connected by two positioning pins 34. In use, the user first pulls the positioning pin 34 out of at least one of the first positioning hole 33 and the second positioning hole, then moves the support frame 20, and then reinserts the positioning pin 34 to complete the initial adjustment of the awning height. Then, while simultaneously grasping the gripping part 22, the user also grasps the synchronous operation part 32 and moves the locking part 31 and the canopy 10 to make a more precise adjustment of the awning height. Once the force is stopped, the frictional resistance will automatically fix the awning in the current position, so that the awning can be stopped more precisely at the required height.

[0048] It should be noted that the positioning pins 34 on two adjacent support columns 21 can also be connected by a synchronous operating component 32. By operating the synchronous operating component 32, the positioning pins 34 on the two support columns 21 can be pulled out or inserted synchronously from the first positioning hole 33 and the second positioning hole.

[0049] It should be noted that the height-adjustable sunshade mechanism can be used on agricultural machinery such as lawnmowers, seeders, and harvesters. The gripping part 22 is a gripping rod connected between two support columns 21, and the synchronous operating part 32 is an operating lever connected to two locking parts 31.

[0050] Understandably, in other embodiments, the grip and the synchronization mechanism are positioned adjacent to each other, allowing the user to easily reach the synchronization mechanism while gripping the grip. This enables the user to easily move the grip and the synchronization mechanism simultaneously, thereby efficiently adjusting the height of the awning and making awning height adjustment more convenient.

[0051] Understandably, in other embodiments, adjacent support frames are provided with only one guide rail, the guide rail is fixed on one of the support frames, the locking member is fixed on the other support frame, the locking member is sleeved on the guide rail, and the adjacent support frames are connected by the frictional resistance between the locking member and the guide rail, and the relative position remains unchanged. The locking member or the support frame provided with the locking member can be moved directly by external force to overcome the frictional resistance and make the two support frames slide vertically.

[0052] Understandably, in other embodiments, the vertical adjustment structure may also include a slot provided on the inner side of a support column. The slot is distributed vertically and can be shaped like a dovetail or a T-slot. A matching locking block is installed on another support column. When adjusting the height of the canopy, the locking block slides within the slot. Once the desired height is reached, the locking block engages at a specific position within the slot, achieving quick fixation.

[0053] Understandably, in other embodiments, the vertical adjustment structure may also include an electric actuator mounted between the two support frames. The electric actuator consists of components such as a motor, a screw, and a nut. The motor drives the screw to rotate, and the nut moves up and down along the screw, thereby causing the support frames to slide up and down. By controlling the forward and reverse rotation of the motor, the height of the canopy can be quickly adjusted.

[0054] Example 2:

[0055] like Figure 4 As shown, this embodiment discloses a lawnmower, including a housing 40 and a blade assembly 41, and also includes a liftable sunshade mechanism of any of the above embodiments, including a canopy 10 and three support frames 20 that are slidably connected vertically. The liftable sunshade provides the operator with better sunshade and rain protection, and the height adjustment of the sunshade is more convenient and accurate.

[0056] It should be noted that the portion of the housing 40 near the tail fin has reserved space for installing a retractable sunshade mechanism. The housing 40 has mounting holes into which the support column 21 of the retractable sunshade mechanism can be inserted for installation.

[0057] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A retractable awning mechanism, characterized by, The sunshade mechanism comprises a roof (10) and at least two vertically sliding support frames (20), the roof (10) is arranged on the uppermost support frame (20), each support frame (20) comprises at least two transversely distributed support columns (21), each support column (21) is provided with a guide rail (30), adjacent support frames (20) are slidingly connected with the guide rails (30), the support frame (20) is further provided with at least two locking members (31) for locking adjacent support frames (20) and guide rails (30), the sunshade mechanism further comprises a synchronous operation member (32) for connecting all locking members (31) on the same support frame (20), the synchronous operation member (32) can drive all locking members (31) to move synchronously.

2. The liftable sun shelter mechanism according to claim 1, characterized in that, The number of the support frames (20) is at least three, and each two adjacent support frames (20) are respectively provided with a vertical adjustment structure, and different vertical adjustment structures have different adjustment amounts.

3. The liftable sun shelter mechanism according to claim 2, characterized in that, One of the vertical adjustment structures has multiple adjustment amounts of gears, and the sum of the adjustment amounts of all gears of the other vertical adjustment structure is less than the adjustment amount of a single gear of the one vertical adjustment structure.

4. The liftable sun shelter mechanism of claim 1, wherein, The locking member (31) is tightly arranged on the guide rail (30) to form a frictional resistance between the locking member (31) and the guide rail (30), and the relative position of the two adjacent support frames (20) is kept unchanged under the action of the frictional resistance, the locking member (31) is driven to move to overcome the frictional resistance, so that the vertical sliding between the two adjacent support frames (20) occurs.

5. The liftable sun shelter mechanism of claim 1, wherein, The roof (10) and the support frame (20) are fixedly connected, all the support columns (21) are connected through the gripping portions (22), and the synchronous operation member (32) is arranged on the support frame (20) fixedly connected with the roof (10).

6. The liftable sun shelter mechanism of claim 5, wherein, The gripping portion (22) and the synchronous operation member (32) are arranged at adjacent or close positions.

7. The liftable sun shelter mechanism of claim 1, wherein, The guide rail (30) comprises an outer guide rail (301) and an inner guide rail (302), the inner guide rail (302) is sleeved in the outer guide rail (301), the outer guide rail (301) is fixedly connected with one of the adjacent support frames (20), and the inner guide rail (302) is fixedly connected with the other of the adjacent support frames (20).

8. The liftable sun shelter mechanism of claim 2, wherein, The vertical adjustment structure comprises a plurality of first positioning holes (33) arranged on one of the adjacent support frames (20) in a vertical direction with a gap, and a second positioning hole is arranged on the other of the adjacent support frames (20) and matched with the first positioning hole (33), and the first positioning hole (33) and the second positioning hole are connected through a positioning pin (34).

9. The liftable sun shelter mechanism of claim 8, wherein, The positioning pin (34) is provided with at least two positioning pins (34), and the at least two positioning pins (34) simultaneously connect the two support frames (20).

10. A mower comprising a housing (40) and a blade assembly (41), characterised in that, The casing (40) is provided with the liftable sunshade mechanism as claimed in any one of claims 1 to 9.

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