Rollover type cab guiding and limiting assembly

Abstract

The utility model relates to the technical field of engineering vehicles, in particular to a rollover type cab guiding and limiting assembly, a cab and a functional device are arranged on a vehicle frame at intervals in the length direction of the vehicle frame, the rollover type cab guiding and limiting assembly comprises a supporting frame and a guiding assembly, and the supporting frame is used for being fixedly arranged on the functional device. A through sliding groove is formed in the supporting frame. The guiding assembly comprises a guiding rod set and a limiting assembly, the guiding rod set is used for being fixedly arranged on the side, opposite to the functional device, of the cab and penetrating through the through sliding groove, the cab turns over laterally so that the guiding rod set can slide in the through sliding groove, and the limiting assembly enables the guiding rod set to be relatively fixed to the supporting frame in the length direction of the frame. According to the arrangement, the cab can be prevented from deviating in the length direction of the frame due to misalignment of the center of gravity and rigidity of the cab, abnormal abrasion of the pivoting suspension can be avoided, and the service life is prolonged. In addition, it can be guaranteed that mounting holes of the fixed suspensions are aligned with corresponding holes in the cab, and the mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering vehicles, in particular to a guide and limiting assembly of a rollover type cab. Background Art

[0002] The truck's transmission, hydraulic pump and other components are usually arranged under the cab. During maintenance, the cab needs to be flipped over to expose the space under the cab to the maintenance personnel, making it easier for them to maintain and service the truck.

[0003] For some trucks (such as articulated trucks), functional devices are respectively provided in front and rear of the cab, which makes it impossible for the cab to flip over in the forward or backward direction of the vehicle. Therefore, it can only flip over to the left or right side of the vehicle. Therefore, a pivotal suspension is usually provided on one side of the frame, and the pivotal suspension is pivotally connected to the cab to achieve the side flipping of the cab relative to the frame. A fixed suspension is provided on the other side of the frame, and the fixed suspension is fixed to the cab by bolts to achieve the fixation of the cab relative to the frame.

[0004] However, due to the misalignment of the cab's center of gravity and rigidity issues, the cab will deviate forward and backward when it rolls over or returns to its original position, causing abnormal wear of the pivoted suspension and reducing its service life. In addition, the forward and backward deviation of the cab will also cause the mounting holes of the fixed suspension to be unable to align with the corresponding holes on the cab when returning to its original position, making installation difficult.

[0005] Therefore, a rollover cab guide and limit assembly is urgently needed to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a guide limit assembly for a rollover cab to solve the problem in the related art that due to the misalignment of the cab's center of gravity and rigidity, the cab will deviate forward and backward when it rolls over or returns, resulting in abnormal wear of the pivot suspension and reduced service life. In addition, the forward and backward deviation of the cab will also cause the installation hole of the fixed suspension to be unable to align with the corresponding hole on the cab when returning, making installation difficult.

[0007] The utility model provides a side-rollover cab guide and limit assembly, wherein the cab and functional components are arranged on the frame at intervals along the length direction of the frame, and the side-rollover cab guide and limit assembly comprises:

[0008] A support frame, the support frame is used to be fixed on the functional device, and the support frame is provided with a through slide groove;

[0009] The guide assembly includes a guide rod group and a limit assembly. The guide rod group is used to be fixed on the side of the cab opposite to the functional device and is passed through the through slide groove. The cab is tipped over to allow the guide rod group to slide in the through slide groove. The limit assembly fixes the guide rod group relative to the support frame along the length direction of the frame.

[0010] As a preferred technical solution of the guide and limit assembly of the rollover cab, the guide rod group includes a guide bolt and a guide nut, and the limit assembly includes a shaft sleeve, a first gasket and a second gasket;

[0011] The guide assembly also includes a guide plate, which is used to be fixed to the cab, and a through hole is provided on the guide plate. The sleeve is inserted into the through slide groove, and the first gasket and the second gasket are respectively located on both sides of the support frame along the length direction of the frame. The guide bolt passes through the first gasket, the sleeve, the second gasket and the through hole in sequence and is threadedly connected to the guide nut. The two ends of the sleeve are respectively in contact with the first gasket and the second gasket, and the diameter of the first gasket and the diameter of the second gasket are both larger than the width of the through slide groove.

[0012] As a preferred technical solution for the guide and limit assembly of the rollover cab, the guide rod group further includes an anti-slip gasket, which is sleeved on the guide bolt and located between the guide plate and the guide nut.

[0013] As a preferred technical solution of the guide and limit assembly of the rollover cab, the guide assembly further includes a guide plate, the guide plate is used to be fixed to the cab, the guide plate is provided with a first pin hole, the support frame is provided with a second pin hole, the cab is located at a maximum preset angle a relative to the frame rollover, and the first pin hole and the second pin hole are coaxially arranged relative to each other;

[0014] It also includes a pin shaft assembly, which is sequentially inserted into the first pin hole and the second pin hole.

[0015] As a preferred technical solution for the side-rolling cab guide and limit assembly, the pin assembly includes:

[0016] A pin shaft, one end of which is provided with a stopper, and the other end of which is provided with a limit hole along its radial direction, the pin shaft is sequentially passed through the first pin hole and the second pin hole, the stopper is located on a side of the support frame away from the guide plate, and the limit hole is located on a side of the guide plate away from the support frame;

[0017] A safety pin is inserted into the limiting hole.

[0018] As a preferred technical solution for the rollover cab guide and limit assembly, the support frame is further provided with a receiving hole, and the pin shaft can be inserted into the receiving hole.

[0019] As an optimal technical solution for the rollover cab guide limit assembly, the safety pin includes a pin body and an elastic limit ring, one end of the pin body is fixedly connected to the limit ring, and the pin body is inserted into the limit hole so that the limit ring is sleeved on the pin shaft.

[0020] As an optimal technical solution for the guide and limit assembly of a rollover cab, the support frame includes a limit plate and a bracket, the bottom end of the limit plate is used to be fixedly connected to the frame, the top end of the limit plate is fixedly connected to the bracket, the bracket is fixedly connected to the functional device, and the through slide groove is located on the limit plate.

[0021] As a preferred technical solution of the side-rolling cab guide and limit assembly, the top and bottom ends of the limit plate are respectively provided with first waist-shaped holes, the bracket and the frame are respectively provided with second waist-shaped holes, the first waist-shaped holes and the second waist-shaped holes correspond to each other one by one, and one of the first waist-shaped holes and the second waist-shaped holes is provided along the width direction of the frame, and the other is provided along the height direction of the frame;

[0022] The support frame also includes a first locking bolt and a first locking nut. The first locking bolt is sequentially inserted into the first waist-shaped hole and the corresponding second waist-shaped hole and is threadedly connected to the first locking nut.

[0023] As a preferred technical solution of the rollover cab guide and limit assembly, the bracket includes a connecting plate and a supporting plate, the connecting plate is attached to the limit plate, the second waist-shaped hole is provided on the connecting plate, the supporting plate is fixedly connected to the connecting plate and is perpendicular to the connecting plate, and the supporting plate is provided with a third waist-shaped hole extending along the length direction of the frame;

[0024] The support frame also includes a second locking bolt and a second locking nut. The second locking bolt passes through the third waist-shaped hole and the frame of the functional device in sequence and is threadedly connected with the second locking nut.

[0025] The beneficial effects of the utility model are:

[0026] The utility model provides a guide and limit assembly for a rollover type cab, wherein the cab and functional components are arranged on a vehicle frame at intervals along the length direction of the vehicle frame, and the guide and limit assembly for the rollover type cab comprises a support frame and a guide component, wherein the support frame is used for being fixed on the functional component, and a through slide groove is arranged on the support frame; the guide component comprises a guide rod group and a limit assembly, wherein the guide rod group is used for being fixed on a side of the cab opposite to the functional component and passing through the through slide groove, and the cab is rolled over so that the guide rod group slides in the through slide groove, and the limit assembly fixes the guide rod group relatively to the support frame along the length direction of the vehicle frame. When a truck equipped with a side-rolling cab guide limit assembly rolls over, the cab drives the guide rod group to slide in the through slide groove. The limit assembly fixes the guide rod group relatively to the support frame along the length direction of the frame, and the support frame is fixed on the functional device. In the process of the cab flipping, the above arrangement can limit the cab from deviating along the length direction of the frame due to the misalignment of the cab's center of gravity and rigidity problems. Therefore, abnormal wear of the pivot suspension can be avoided and the service life can be increased. In addition, when the cab returns to its original position, the mounting holes of the fixed suspension can be aligned with the corresponding holes on the cab, which improves the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the guide and limit assembly of the rollover type cab in the embodiment of the utility model (including the cab, functional components, and frame);

[0028] Figure 2 It is an exploded schematic diagram of the guide and limit assembly of the rollover cab in the embodiment of the utility model (excluding the cab, functional components and frame);

[0029] Figure 3 It is a structural schematic diagram of the guide and limit assembly of the rollover cab in an embodiment of the utility model (including the cab, functional components, and frame).

[0030] In the figure:

[0031] 100, cab; 200, functional components; 300, frame; 400, guide and limit assembly of rollover cab;

[0032] X, length direction; Y, width direction; Z, height direction;

[0033] 1. Support frame; 11. Limiting plate; 111. Through slide groove; 112. Second pin hole; 113. Storage hole; 114. First waist-shaped hole; 12. Bracket; 121. Connecting plate; 1211. Second waist-shaped hole; 122. Support plate; 1221. Third waist-shaped hole; 13. First locking bolt; 14. First locking nut; 15. Second locking bolt; 16. Second locking nut;

[0034] 2. Guide assembly; 211. Guide bolt; 212. Guide nut; 213. Anti-drop gasket; 221. Bushing; 222. First gasket; 223. Second gasket; 23. Guide plate; 232. First pin hole;

[0035] 3. Pin assembly; 31. Pin; 32. Stopper; 33. Safety pin; 331. Pin body; 332. Limiting ring;

[0036] 4. Handle. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0041] like Figure 1 to Figure 3 As shown, the present embodiment provides a guide and limit assembly for a rollover cab, wherein the cab 100 and the functional device 200 are arranged on the frame 300 at intervals along the length direction X of the frame 300, and the guide and limit assembly 400 for the rollover cab comprises a support frame 1 and a guide assembly 2, wherein the support frame 1 is used to be fixedly arranged on the functional device 200, and a through slide groove 111 is arranged on the support frame 1; the guide assembly 2 comprises a guide rod group and a limit assembly, wherein the guide rod group is used to be fixedly arranged on a side of the cab 100 opposite to the functional device 200 and is passed through the through slide groove 111, and the cab 100 is rolled over so that the guide rod group slides in the through slide groove 111, and the limit assembly fixes the guide rod group relatively to the support frame 1 along the length direction X of the frame 300. When a truck equipped with a rollover cab guide limit assembly 400 rolls over the cab 100, the cab 100 drives the guide rod group to slide in the through slide groove 111. Since the limit assembly fixes the guide rod group relatively to the support frame 1 along the length direction X of the frame 300, and the support frame 1 is fixed on the functional device 200, the above arrangement can limit the cab 100 from deviating along the length direction X of the frame 300 due to the misalignment of the center of gravity of the cab 100 and the rigidity problem during the flipping process of the cab 100. Therefore, it can avoid abnormal wear of the pivot suspension and increase the service life. In addition, when the cab 100 returns to its original position, it can also ensure that the mounting holes of the fixed suspension are aligned with the corresponding holes on the cab 100, thereby improving the installation efficiency.

[0042] Specifically, the plane where the sliding track of the guide rod assembly through the slide groove 111 is located is parallel to the plane swept by the cab 100 when it rolls over.

[0043] Optionally, the guide rod group includes a guide bolt 211 and a guide nut 212, and the limit assembly includes a sleeve 221, a first gasket 222 and a second gasket 223; the guide assembly 2 also includes a guide plate 23, the guide plate 23 is used to be fixed to the cab 100, and a through hole is provided on the guide plate 23, the sleeve 221 is penetrated through the through slide groove 111, the first gasket 222 and the second gasket 223 are respectively located on both sides of the support frame 1 along the length direction X of the frame 300, the guide bolt 211 passes through the first gasket 222, the sleeve 221, the second gasket 223 and the through hole in sequence and is screwed with the guide nut 212, and the two ends of the sleeve 221 are respectively abutted against the first gasket 222 and the second gasket 223, and the diameter of the first gasket 222 and the diameter of the second gasket 223 are both larger than the width of the through slide groove 111. In this embodiment, the first gasket 222 and the second gasket 223 are arranged on both sides of the support frame 1 along the length direction X of the frame 300, and the diameter of the first gasket 222 and the diameter of the second gasket 223 are both larger than the width of the through slide groove 111, thereby ensuring that the guide assembly 2 is fixed relative to the support frame 1 along the length of the frame 300. The shaft sleeve 221 is arranged in the through slide groove 111, thereby protecting the guide bolt 211, slowing down the wear speed of the guide bolt 211, and increasing the service life of the guide bolt 211.

[0044] Specifically, in order to prevent the first gasket 222 and the second gasket 223 from clamping the support frame 1 and thereby interfering with the sliding of the guide assembly 2 in the through slide groove 111, the two ends of the sleeve 221 are respectively abutted against the first gasket 222 and the second gasket 223, thereby preventing the first gasket 222 and the second gasket 223 from clamping the support frame 1.

[0045] Preferably, the guide rod assembly further includes an anti-slip gasket 213, which is sleeved on the guide bolt 211 and located between the guide plate 23 and the guide nut 212. In this embodiment, the inner diameter of the anti-slip gasket 213 is smaller than the outer diameter of the guide nut 212, and the outer diameter of the anti-slip gasket 213 is larger than the diameter of the through hole. This arrangement can enhance the anti-slip capability between the guide nut 212 and the guide plate 23.

[0046] Optionally, the guide assembly 2 further includes a guide plate 23, which is used to be fixed to the cab 100, the guide plate 23 is provided with a first pin hole 232, the support frame 1 is provided with a second pin hole 112, the cab 100 is located at the maximum preset angle a of rollover relative to the frame 300, and the first pin hole 232 and the second pin hole 112 are coaxially arranged relative to each other; the side-rollover cab guide limit assembly 400 further includes a pin assembly 3, and the pin assembly 3 is sequentially inserted through the first pin hole 232 and the second pin hole 112. In this embodiment, when the cab 100 is located at the maximum preset angle a of rollover relative to the frame 300, at this time, the first pin hole 232 and the second pin hole 112 are coaxially arranged relative to each other, and the pin assembly 3 is sequentially inserted through the first pin hole 232 and the second pin hole 112, so that the cab 100 can be kept at the maximum preset angle a of rollover relative to the frame 300. When the cab 100 needs to be returned, the pin assembly 3 only needs to be pulled out from the first pin hole 232 and the second pin hole 112, and the cab 100 can be returned. In other embodiments, a support rod or a wire rope can also be used to limit the cab 100 to a maximum preset angle a relative to the frame 300.

[0047] Optionally, the pin assembly 3 includes a pin 31 and a safety pin 33. A stopper 32 is provided at one end of the pin 31, and a limiting hole is provided at the other end along its radial direction. The pin 31 is sequentially inserted into the first pin hole 232 and the second pin hole 112. The stopper 32 is located on the side of the support frame 1 away from the guide plate 23, and the limiting hole is located on the side of the guide plate 23 away from the support frame 1; the safety pin 33 is inserted into the limiting hole. In this embodiment, the outer diameter of the stopper 32 is larger than the inner diameter of the first pin hole 232 and the second pin hole 112, and the length of the safety pin 33 is larger than the inner diameter of the first pin hole 232 and the second pin hole 112. Since the stopper 32 is located on the side of the support frame 1 away from the guide plate 23, and the limiting hole is located on the side of the guide plate 23 away from the support frame 1, the above arrangement can prevent the pin 31 from falling out of the first pin hole 232 and the second pin hole 112.

[0048] Optionally, the support frame 1 is further provided with a receiving hole 113, and the pin 31 can be inserted into the receiving hole 113. In this embodiment, when the cab 100 is not required to remain at the maximum preset angle a relative to the frame 300, the pin 31 is taken out from the first pin hole 232 and the second pin hole 112, and then the pin 31 is inserted into the receiving hole 113. At this time, the blocking head 32 and the limiting hole are both located on both sides of the support frame 1, and the safety pin 33 is inserted into the limiting hole, thereby preventing the pin assembly 3 from being lost.

[0049] Optionally, the safety pin 33 includes a pin body 331 and an elastic limiting ring 332, one end of the pin body 331 is fixedly connected to the limiting ring 332, and the pin body 331 is inserted into the limiting hole so that the limiting ring 332 is sleeved on the pin shaft 31. In this embodiment, the above arrangement can prevent the pin body 331 from falling out of the limiting hole due to non-human action.

[0050] Optionally, the support frame 1 includes a limit plate 11 and a bracket 12, the bottom end of the limit plate 11 is used to be fixedly connected to the frame 300, the top end of the limit plate 11 is fixedly connected to the bracket 12, the bracket 12 is fixedly connected to the functional device 200, and the through slide groove 111 is located on the limit plate 11. In this embodiment, the bottom end and the top end of the limit plate 11 are fixed by the frame 300 and the bracket 12 respectively, thereby improving the stability of the limit plate 11 being fixed relative to the frame 300 and the overall strength of the limit plate 11, so as to improve the stability of the guide rod group being fixed relative to the support frame 1 along the length direction X of the frame 300.

[0051] Optionally, a first waist-shaped hole 114 is respectively provided at the top and bottom ends of the limiting plate 11, and a second waist-shaped hole 1211 is respectively provided on the bracket 12 and the frame 300, the first waist-shaped hole 114 and the second waist-shaped hole 1211 correspond to each other one by one, one of the first waist-shaped hole 114 and the second waist-shaped hole 1211 is provided along the width direction Y of the frame 300, and the other is provided along the height direction Z of the frame 300; the support frame 1 also includes a first locking bolt 13 and a first locking nut 14, the first locking bolt 13 is sequentially passed through the first waist-shaped hole 114 and the corresponding second waist-shaped hole and is screwed with the first locking nut 14. In this embodiment, one of the first waist-shaped hole 114 and the second waist-shaped hole 1211 is set along the width direction Y of the frame 300, and the other is set along the height direction Z of the frame 300. This setting can adjust the position of the limit plate 11 relative to the frame 300 along the width direction Y and the height direction Z of the frame 300, thereby ensuring that the guide rod group can slide in the through slide groove 111.

[0052] Optionally, the bracket 12 includes a connecting plate 121 and a supporting plate 122, the connecting plate 121 is attached to the limiting plate 11, the second waist-shaped hole 1211 is provided on the connecting plate 121, the supporting plate 122 is fixedly connected to the connecting plate 121 and is perpendicular to the connecting plate 121, and the supporting plate 122 is provided with a third waist-shaped hole 1221 extending along the length direction X of the frame 300; the supporting frame 1 also includes a second locking bolt 15 and a second locking nut 16, the second locking bolt 15 sequentially passes through the third waist-shaped hole 1221 and the frame of the functional device 200 and is screwed with the second locking nut 16. In this embodiment, the supporting plate 122 and the limiting plate 11 are in a T-shaped structure to prevent the upper part of the limiting plate 11 from being deformed. The third waist-shaped hole 1221 extends along the length direction X of the frame 300, which facilitates the installation of the supporting plate 122 and the frame of the functional device 200.

[0053] Optionally, a handle 4 is further included, and the handle 4 is fixedly connected to the support frame 1. This arrangement facilitates the installation of the support frame 1.

[0054] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A rollover cab guide and limit assembly, wherein a cab (100) and a functional device (200) are arranged on a frame (300) at intervals along a length direction (X) of the frame (300), characterized in that: include: A support frame (1), the support frame (1) being used to be fixedly mounted on the functional device (200), and the support frame (1) being provided with a through slide groove (111); The guide assembly (2) comprises a guide rod group and a limit assembly, wherein the guide rod group is fixedly arranged on a side of the cab (100) opposite to the functional device (200) and is passed through the through slide groove (111), and the cab (100) is tipped over so that the guide rod group slides in the through slide groove (111), and the limit assembly fixes the guide rod group relative to the support frame (1) along the length direction (X) of the vehicle frame (300).

2. The guide and limiting assembly of the rollover cab according to claim 1 is characterized in that: The guide rod assembly comprises a guide bolt (211) and a guide nut (212); the limit assembly comprises a shaft sleeve (221), a first gasket (222) and a second gasket (223); The guide assembly (2) further comprises a guide plate (23), wherein the guide plate (23) is used for being fixedly mounted on the cab (100), a through hole being arranged on the guide plate (23), the shaft sleeve (221) being inserted into the through slide groove (111), the first gasket (222) and the second gasket (223) being respectively located on both sides of the support frame (1) along the length direction (X) of the vehicle frame (300), the guide bolt (211) sequentially passes through the first gasket (222), the shaft sleeve (221), the second gasket (223) and the through hole and is screwed to the guide nut (212), the two ends of the shaft sleeve (221) are respectively in contact with the first gasket (222) and the second gasket (223), and the diameter of the first gasket (222) and the diameter of the second gasket (223) are both larger than the width of the through slide groove (111).

3. The guide and limiting assembly of the rollover cab according to claim 2 is characterized in that: The guide rod assembly further comprises an anti-slip gasket (213), wherein the anti-slip gasket (213) is sleeved on the guide bolt (211) and is located between the guide plate (23) and the guide nut (212).

4. The guide and limiting assembly of the rollover cab according to claim 1, characterized in that: The guide assembly (2) further comprises a guide plate (23), the guide plate (23) being used to be fixedly mounted on the cab (100), the guide plate (23) being provided with a first pin hole (232), the support frame (1) being provided with a second pin hole (112), the cab (100) being located at a maximum preset angle a for rollover relative to the vehicle frame (300), the first pin hole (232) and the second pin hole (112) being coaxially arranged relative to each other; It also includes a pin shaft assembly (3), wherein the pin shaft assembly (3) is sequentially inserted into the first pin hole (232) and the second pin hole (112).

5. The guide and limiting assembly of the rollover cab according to claim 4 is characterized in that: The pin assembly (3) comprises: A pin shaft (31), one end of the pin shaft (31) is provided with a stopper (32), and the other end is provided with a limiting hole along its radial direction, the pin shaft (31) is sequentially passed through the first pin hole (232) and the second pin hole (112), the stopper (32) is located on a side of the support frame (1) away from the guide plate (23), and the limiting hole is located on a side of the guide plate (23) away from the support frame (1); A safety pin (33), wherein the safety pin (33) is inserted into the limiting hole.

6. The guide and limiting assembly of the rollover cab according to claim 5, characterized in that: The support frame (1) is also provided with a receiving hole (113), and the pin shaft (31) can be inserted into the receiving hole (113).

7. The guide and limiting assembly of the rollover cab according to claim 5, characterized in that: The safety pin (33) comprises a pin body (331) and an elastic limiting ring (332), one end of the pin body (331) is fixedly connected to the limiting ring (332), and the pin body (331) is inserted into the limiting hole so that the limiting ring (332) is sleeved on the pin shaft (31).

8. The guide and limiting assembly of the rollover cab according to claim 5, characterized in that: The support frame (1) comprises a limit plate (11) and a bracket (12); the bottom end of the limit plate (11) is used to be fixedly connected to the vehicle frame (300); the top end of the limit plate (11) is fixedly connected to the bracket (12); the bracket (12) is fixedly connected to the functional device (200); and the through slide groove (111) is located on the limit plate (11).

9. The guide and limiting assembly of the rollover cab according to claim 8, characterized in that: The top and bottom ends of the limiting plate (11) are respectively provided with a first waist-shaped hole (114), and the bracket (12) and the frame (300) are respectively provided with a second waist-shaped hole (1211), the first waist-shaped hole (114) and the second waist-shaped hole (1211) correspond to each other one by one, and one of the first waist-shaped hole (114) and the second waist-shaped hole (1211) is arranged along the width direction (Y) of the frame (300), and the other is arranged along the height direction (Z) of the frame (300); The support frame (1) further comprises a first locking bolt (13) and a first locking nut (14); the first locking bolt (13) is sequentially inserted into the first waist-shaped hole (114) and the corresponding second waist-shaped hole (1211) and is threadedly connected to the first locking nut (14).

10. The guide and limiting assembly of the rollover cab according to claim 9, characterized in that: The bracket (12) comprises a connecting plate (121) and a supporting plate (122); the connecting plate (121) is attached to the limiting plate (11); the second waist-shaped hole (1211) is provided on the connecting plate (121); the supporting plate (122) is fixedly connected to the connecting plate (121) and is perpendicular to the connecting plate (121); the supporting plate (122) is provided with a third waist-shaped hole (1221) extending along the length direction (X) of the frame (300); The support frame (1) further comprises a second locking bolt (15) and a second locking nut (16); the second locking bolt (15) passes through the third waist-shaped hole (1221) and the frame of the functional device (200) in sequence and is threadedly connected to the second locking nut (16).

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