Cab and working machine

Abstract

The application relates to the technical field of engineering machinery, and provides a cab and a working machine, the cab comprising a first front upright assembly, a second front upright assembly, a top cover, a bottom plate, a rear frame, a first side window and a second side window, the first lower window frame front end of the first side window being connected with the bottom end of the first front upright assembly, the first lower window frame rear end of the first side window being connected with the rear frame, the first lower window frame, the bottom plate and the rear frame of the first side window forming a triangle; the second lower window frame front end of the second side window being connected with the bottom end of the second front upright assembly, the second lower window frame rear end of the second side window being connected with the rear frame, the second lower window frame, the bottom plate and the rear frame of the second side window forming a triangle. The side main frames on both sides of the cab are designed in a triangular shape, so that the cab can bear greater external force, and the material of the cab skeleton is reduced; the first lower window frame front end is connected with the bottom end of the first front upright assembly, and the second lower window frame front end is connected with the second front upright assembly, so that the driving operation field of view is effectively increased.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and in particular to a cab and operating machinery. Background Technology

[0002] Currently, the driving field of vision for some construction machinery generally includes direct view and assessment shadows. For example, the cab of a super-large excavator used in mining areas is relatively high off the ground, and the machine's field of vision during operation generally includes both direct view and assessment shadows. In related technologies, to compensate for insufficient direct view, auxiliary monitoring mirrors and rearview mirrors are needed. If the field of vision is still insufficient, additional auxiliary fields of vision are required. For example, for tracked dump trucks, the driver should be able to see at least the ground projection (within a radius of 10m) of the outermost edge of the track at the center line of the drive sprocket or idler wheel on both sides of the machine using the rearview mirror.

[0003] However, in order to meet the safety performance requirements of vibration fatigue and FOPS (falling object protection device), the main frame of the left and right front pillars of the current construction machinery cab is designed to be relatively robust, and the side frame of the cab is mainly a quadrilateral frame, and the area near the lower stress source of the cab is reinforced. This will increase the obstruction angle of vision, resulting in a reduced field of vision. It is necessary to add auxiliary monitoring screens and rearview mirrors to meet the vision requirements, which increases costs, reduces the ease of operation of the seat, and increases safety hazards. Summary of the Invention

[0004] This invention provides a cab and a working machine to solve the problems of existing engineering machinery cabs, which have a thick frame and a quadrilateral frame as the side frame to meet safety performance requirements, and are reinforced near the lower stress source of the cab. This results in an increased field of vision obstruction angle, which reduces the field of vision and requires the use of additional auxiliary monitoring mirrors and rearview mirrors to meet the field of vision requirements. This increases costs, reduces the ease of operation of the seat, and increases safety hazards.

[0005] This invention provides a driver's cab, comprising a first front pillar assembly, a second front pillar assembly, a roof, a floor, a rear frame, a first side window, and a second side window, wherein:

[0006] The first side window is connected to the top cover, the first front pillar assembly and the rear frame respectively. The front end of the first lower window frame of the first side window is connected to the bottom end of the first front pillar assembly, and the rear end of the first lower window frame of the first side window is connected to the rear frame. The first lower window frame of the first side window, the bottom plate and the rear frame form a triangle.

[0007] The second side window is connected to the top cover, the second front pillar assembly and the rear frame respectively. The front end of the second lower window frame of the second side window is connected to the bottom end of the second front pillar assembly, and the rear end of the second lower window frame of the second side window is connected to the rear frame. The second lower window frame of the second side window, the bottom plate and the rear frame form a triangle.

[0008] A driver's cab according to the present invention further includes:

[0009] A driver's seat is located within the driver's compartment;

[0010] The front window is connected to the roof, the first front pillar assembly, the second front pillar assembly, and the floor plate, respectively. The forward field of vision angle of the cab is greater than or equal to the minimum forward field of vision angle. The reference eye point and the front end of the roof form a first plane, and the bottom end of the upper window frame of the front window is located on the first plane. The reference eye point is the eye point position of a standard human model sitting in the driver's seat in a standard sitting posture in the cab.

[0011] A driver's cab according to the present invention further includes:

[0012] A bottom viewing window is provided on the floor plate and is located in front of the driver's seat.

[0013] According to a driver's cab provided by the present invention, a front control box assembly is provided in the driver's cab, the front control box assembly is located near a first side window, the side view angle of the driver's cab is greater than or equal to the minimum side view angle, wherein the reference eye point is connected to the first lower window frame to form a second plane, and the top of the front control box assembly is located on or below the second plane.

[0014] According to a driver's cab provided by the present invention, the first front pillar assembly includes:

[0015] The first front column frame has two ends connected to the top cover and the bottom plate respectively, and a first air duct is provided inside the first front column frame.

[0016] A first decorative element is disposed on the first front pillar frame. The first decorative element is located in the driver's cab. The first decorative element is provided with a first air vent. The first air vent is disposed facing the interior of the driver's cab. The first air vent is connected to the first air duct. The first decorative element is located within the projection range of the first front pillar frame.

[0017] According to a driver's cab provided by the present invention, the second front pillar assembly includes:

[0018] The second front column frame has two ends connected to the top cover and the bottom plate respectively, and a second air duct is provided inside the second front column frame;

[0019] The second decorative element is disposed on the second front pillar frame and located in the driver's cab. The second decorative element is provided with a second air vent, which faces the interior of the driver's cab. The second air vent is connected to the second air duct, and the second decorative element is located within the projection range of the second front pillar frame.

[0020] A driver's cab according to the present invention further includes:

[0021] A bottom protective grille is provided on the base plate, and the bottom protective grille covers the top of the bottom viewing window.

[0022] A driver's cab according to the present invention further includes:

[0023] A front guard net is installed at the front end of the front window. The frame of the front guard net is connected to the top cover and the bottom plate respectively. The frame of the front guard net, the connection point between the front guard net and the top cover, and the connection point between the front guard net and the bottom plate are all located outside the driver's field of vision of the cab.

[0024] A driver's cab according to the present invention further includes:

[0025] A falling object protection device is installed above the top cover, and the falling object protection device is used to cover the top cover.

[0026] According to a driver's cab provided by the present invention, the bottom protective grille includes:

[0027] A mesh screen is provided to cover the bottom viewing window;

[0028] Multiple reinforcing ribs are provided on the grille and are distributed in a radiating pattern on both sides along the direction from the rear end to the front end of the cab.

[0029] The present invention also provides a working machine, including a cab as described in any of the above claims.

[0030] The present invention provides a cab and operating machinery. The cab includes a first front pillar assembly, a second front pillar assembly, a roof, a floor, a rear frame, a first side window, and a second side window. The first side window is connected to the roof, the first front pillar assembly, and the rear frame. The front end of the first lower window frame of the first side window is connected to the bottom end of the first front pillar assembly, and the rear end of the first lower window frame of the first side window is connected to the rear frame. The first lower window frame, the floor, and the rear frame of the first side window form a triangle. The second side window is connected to the roof, the second front pillar assembly, and the rear frame. The front end of the second lower window frame of the second side window is connected to the bottom end of the second front pillar assembly, and the rear end of the second lower window frame of the second side window is connected to the rear frame. The second lower window frame, the floor, and the rear frame of the second side window form a triangle.

[0031] This configuration, where the first lower window frame, bottom plate, and rear frame of the first side window are connected to form a triangular frame structure, and the second lower window frame, bottom plate, and rear frame of the second side window are connected to form a triangular frame structure, allows the main side frames on both sides of the cab to form a triangular design, enabling them to withstand greater external forces and reducing the amount of material used in the cab frame. Furthermore, the connection between the front end of the first lower window frame and the bottom end of the first front pillar assembly, and the connection between the front end of the second lower window frame and the second front pillar assembly, effectively increases the driver's field of vision and reduces the need for auxiliary monitoring mirrors and rearview mirrors. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is one of the three-dimensional structural schematic diagrams of the driver's cab provided by the present invention (viewed from left to right towards the driver's cab);

[0034] Figure 2 This is the second three-dimensional structural schematic diagram of the driver's cab provided by the present invention (viewed from right to left towards the driver's cab);

[0035] Figure 3 This is one of the front views of the cab provided by the present invention (with the front guard net hidden);

[0036] Figure 4 This is one of the right views of the cab provided by the present invention (with the front guard net hidden);

[0037] Figure 5 This is a top view of the driver's cab provided by the present invention;

[0038] Figure 6This is the second right view of the cab provided by the present invention (showing the front guard net);

[0039] Figure 7 This is the second front view of the cab provided by the present invention (showing the front guard net);

[0040] Figure 8 This is one of the field-of-view distribution diagrams of a standard human body model sitting in a standard sitting posture on the driver's seat in the cab, looking straight ahead, provided by the present invention (side view of the cab).

[0041] Figure 9 This is the second of the field-of-view distribution diagrams (top view of the driver's cab) of a standard human body model sitting in a standard sitting posture on the driver's seat in the driver's cab, provided by the present invention.

[0042] Figure 10 This invention provides a top-down view of the driver's cab from the left, showing the field of vision of a standard human body model sitting in a standard seated position in the driver's seat.

[0043] Figure 11 yes Figure 9 A magnified view of part A in the middle;

[0044] Figure 12 yes Figure 9 A magnified view of part B in the image.

[0045] Figure label:

[0046] 1. Top cover; 2. Base plate; 3. Rear frame;

[0047] 4. First front pillar assembly; 5. Second front pillar assembly; 6. First side window;

[0048] 7. Second side window; 8. First lower window frame; 9. Second lower window frame;

[0049] 10. Driver's seat; 11. Standard anatomical model; 12. Front control box assembly;

[0050] 13. Upper window frame; 14. Bottom viewing window; 15. Grille mesh;

[0051] 16. Reinforcing ribs; 17. First front column frame; 18. First decorative piece;

[0052] 19. First air duct; 20. First air outlet; 21. Second front column frame;

[0053] 22. Second decorative element; 23. Second air duct; 24. Second air outlet; 25. Front protective net. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0055] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention 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. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0056] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0057] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] The following is combined Figures 1 to 12 The present invention describes the driver's cab and the operating machinery.

[0060] like Figure 1 , Figure 2 and Figure 4 As shown, the present invention provides a driver's cab that may include a first front pillar assembly 4, a second front pillar assembly 5, a top cover 1, a floor plate 2, a rear frame 3, a first side window 6, and a second side window 7.

[0061] The first side window 6 can be connected to the roof 1, the first front pillar assembly 4, and the rear frame 3. The front end of the first lower window frame 8 of the first side window 6 can be connected to the bottom end of the first front pillar assembly 4, and the rear end of the first lower window frame 8 of the first side window 6 can be connected to the rear frame 3. The first lower window frame 8, the bottom plate 2, and the rear frame 3 of the first side window 6 can form a triangle. In this way, the first lower window frame 8, the bottom plate 2, and the rear frame 3 of the first side window 6 can form a stable triangular frame structure, which can provide the maximum field of vision for driving operations, reduce the use of auxiliary monitoring mirrors and rearview mirrors, and ensure the strength of the cab.

[0062] The second side window 7 can be connected to the roof 1, the second front pillar assembly 5, and the rear frame 3 respectively. The front end of the second lower window frame 9 of the second side window 7 can be connected to the bottom end of the second front pillar assembly 5, and the rear end of the second lower window frame 9 of the second side window 7 can be connected to the rear frame 3. The second lower window frame 9, the bottom plate 2, and the rear frame 3 of the second side window 7 can form a triangle. In this way, the second lower window frame 9, the bottom plate 2, and the rear frame 3 of the second side window 7 can form a stable triangular frame structure, which can provide the maximum field of vision for driving operations, reduce the use of auxiliary monitoring mirrors and rearview mirrors, and ensure the strength of the cab.

[0063] Here, the aforementioned rear frame 3 can be a quadrilateral frame.

[0064] With this configuration, the first lower window frame 8, the base plate 2, and the rear frame 3 of the first side window 6 are connected to form a triangular frame structure, and the second lower window frame 9, the base plate 2, and the rear frame 3 of the second side window 7 are also connected to form a triangular frame structure. This allows the main side frames on both sides of the cab to form a triangular design, enabling them to withstand greater external forces and reducing the amount of material used in the cab frame. It also eliminates the need to thicken the first front pillar assembly 4 and the second front pillar assembly 5. Furthermore, the front end of the first lower window frame 8 of the first side window 6 is connected to the bottom end of the first front pillar assembly 4, and the front end of the second lower window frame 9 of the second side window 7 is connected to the bottom end of the second front pillar assembly 5. This effectively increases the driver's field of vision and reduces the use of auxiliary monitoring mirrors and rearview mirrors.

[0065] In an optional embodiment of the present invention, the cab may further include a front window, the driver's seat 10 may be installed in the cab, and the front window may be connected to the top cover 1, the first front pillar assembly 4, the second front pillar assembly 5 and the floor 2 respectively.

[0066] Furthermore, the reference eye point and the front end of the top cover 1 form a first plane, and the bottom end of the upper window frame 13 of the front window is located on the first plane. In this way, the field of view of the front window can be effectively improved.

[0067] It should be noted that the reference eye point can be the eye point position of a standard human body model 11 sitting in a standard sitting position on the driver's seat 10 in the driver's cab. Here, the standard human body model 11 can be a human body model with the standard GB / 11559.

[0068] The bottom end of the upper window frame 13 of the front window intersects with the first plane to form a first straight line. If the bottom end of the upper window frame 13 of the front window is lower than the first straight line, the field of vision of the front window will be reduced. If the bottom end of the upper window frame 13 of the front window is higher than the first straight line, it will prevent the installation of windshield wipers or reduce the strength of the cab.

[0069] Here, the driver sitting in the driver's seat 10 in the cab sees the front end of the roof 1 when the driver's forward field of vision is the smallest. No matter whether the driver's seat 10 is adjusted forward or backward or up or down, the driver's forward field of vision is greater than when seeing the roof 1.

[0070] In this embodiment, the angle between the first plane and the midline of the field of vision of the standard human body model 11 can be 37°-45°, specifically 37°.

[0071] In an optional embodiment of the present invention, the cab may further include a bottom viewing window 14, which may be disposed on the floor 2 and located in front of the driver's seat 10. This allows the driver sitting in the driver's seat 10 to observe the environment at the bottom of the cab through the bottom viewing window 14, further increasing the driver's field of vision.

[0072] In an optional embodiment of the invention, a front control box assembly 12 may be provided in the driver's cab for decorative purposes. Here, the front control box assembly 12 may be located near the first side window 6.

[0073] The reference eye point is connected to the first lower window frame 8 to form a second plane, and the top of the front control box assembly 12 can be located on or below the second plane. In this way, the front control box assembly 12 will not obstruct the first lower window frame 8 when the driver looks towards the first side window 6, and will not affect the side and lower visibility of the cab, thus improving the side visibility of the cab.

[0074] It should be noted that the side view of the cab refers to the field of vision that the driver, sitting in the driver's seat 10, can see directly through the side window.

[0075] Here, the angle between the second plane and the midline of the field of vision of the standard human body model 11 can be 37°-45°, specifically 37°.

[0076] The first side window 6 mentioned above can be the left side window, and the second side window 7 can be the right side window.

[0077] In an optional embodiment of the present invention, the first front pillar assembly 4 may include a first front pillar frame 17 and a first decorative element 18. The two ends of the first front pillar frame 17 may be connected to the top cover 1 and the bottom plate 2 respectively to support the top cover 1. The first decorative element 18 may be disposed on the first front pillar frame 17 and may be located in the driver's cab to improve the aesthetics of the interior of the driver's cab.

[0078] The first front pillar frame 17 may be equipped with a first air duct 19, and the first decorative piece 18 may be equipped with a first air vent 20. The first air vent 20 may be connected to the first air duct 19 and may be oriented towards the interior of the driver's cab, specifically towards the driver's seat 10. This ensures ventilation within the driver's cab and meets the thermal comfort requirements of the driver's cab.

[0079] The second front pillar assembly 5 may include a second front pillar frame 21 and a second decorative element 22. The two ends of the second front pillar frame 21 may be connected to the top cover 1 and the bottom plate 2 respectively to support the top cover 1. The second decorative element 22 may be set on the second front pillar frame 21 and may be located in the cab to improve the aesthetics of the cab interior.

[0080] The second front pillar frame 21 may contain a second air duct 23, and the second decorative piece 22 may contain a second air vent 24. The second air vent 24 may be connected to the second air duct 23 and may be oriented towards the interior of the driver's cab, specifically towards the driver's seat 10. This ensures ventilation within the driver's cab and meets the thermal comfort requirements of the driver's cab.

[0081] Here, the air conditioning duct can be installed in the first air duct 19 and / or the second air duct 23, which can optimize the design of the interior of the driver's cab.

[0082] Furthermore, the first decorative element 18 can be located within the projection range of the first front pillar frame 17, and the second decorative element 22 can be located within the projection range of the second front pillar frame 21. This ensures that the first decorative element 18 and the second decorative element 22 are within the obstruction angle's field of vision, preventing them from obstructing the driver's view and thus maximizing the field of vision.

[0083] It should be noted that the first front pillar frame 17 and the second front pillar frame 21 are obstruction angles that affect the driver's field of vision.

[0084] In an optional embodiment, the first front pillar frame 17 and the second front pillar frame 21 can be made of standard profiles welded together, without the need to thicken the first front pillar frame 17 and the second front pillar frame 21, which can further ensure the driver's driving operation field of vision is maximized; and the standard profile welding frame is simple to process, can be realized with simple tooling, and is easy to control the processing accuracy.

[0085] Here, the vibration fatigue simulation analysis results of the cab body frame by CAE (Computer-Aided Engineering in Engineering Design) can determine that the first front pillar frame 17 and the second front pillar frame 21 use the least amount of material while meeting the FOPS (Falling Object Protection Device) function, so as to meet the visibility requirements.

[0086] In an optional embodiment of the present invention, the cab may further include a falling object protection device, which may be disposed above the top cover 1 and may be used to cover the top cover 1. This provides protection for the cab, preventing falling rocks and other objects from hitting the top cover 1 of the cab, thus improving the safety of the cab.

[0087] In an optional embodiment, the cab may further include a bottom protective grille, which may be disposed on the floor 2 and positioned above the bottom viewing window 14 to increase the strength of the bottom viewing window 14.

[0088] In an optional embodiment, the bottom protective grille may include a grille 15 and multiple diagonal reinforcing ribs 16. The grille 15 may cover the bottom viewing window 14. The multiple reinforcing ribs 16 may be disposed on the grille 15 to strengthen the grille 15, thereby improving the strength of the grille 15.

[0089] Here, the shape and size of the grille 15 can be consistent with the shape and size of the bottom window 14, or the size of the grille 15 can be larger than the size of the bottom window 14. In this way, the grille 15 can cover the bottom window 14 and play a protective role for the bottom window 14.

[0090] Furthermore, multiple reinforcing ribs 16 can be distributed in a radiating pattern on both sides along the direction from the rear to the front of the cab. This not only increases the strength of the grille 15 but also minimizes its impact on visibility, thus maximizing the driver's downward field of vision.

[0091] In an optional embodiment, the cab may further include a front guard net 25, which may be positioned at the front end of the front window, and the frame of the front guard net 25 may be connected to the top cover 1 and the bottom plate 2 respectively. In this way, the front guard net 25 can protect the front window and improve the safety of the cab.

[0092] Furthermore, the frame of the front guard net 25, the connection point between the front guard net 25 and the top cover 1, and the connection point between the front guard net 25 and the bottom plate 2 can all be located outside the driver's field of vision in the cab, so as to avoid the frame of the front guard net 25 affecting the driver's field of vision.

[0093] It should be noted that the driver's field of vision in the cab can include the forward view, side view, downward view, and rear view.

[0094] like Figure 1As shown, the lower frame of the left side window of the cab provided by this invention connects to the lowest point of the left front pillar assembly, maximizing the left-side field of vision. Furthermore, the lower frame of the left side window, together with the floor plate and rear frame, forms a triangular or near-triangular frame structure, which improves the strength of the left frame and ensures it meets the safety performance requirements for vibration fatigue and FOPS. Similarly, the lower frame of the right side window connects to the lowest point of the right front pillar assembly, maximizing the right-side field of vision. Moreover, the lower frame of the right side window, together with the floor plate and rear frame, forms a triangular or near-triangular frame structure, which improves the strength of the right frame and ensures it meets the safety performance requirements for vibration fatigue and FOPS. Thus, the safety performance requirements for vibration fatigue and FOPS can be met without thickening the front pillar assembly.

[0095] To meet the thermal comfort requirements inside the driver's cab, the arrangement of air ducts and air outlets needs to be optimized based on the simulation results. A first air duct 19 is set in the left front pillar frame of the left front pillar assembly, and a first air outlet 20 connected to the first air duct 19 is set on the decorative part of the left front pillar assembly. A second air duct 23 is set in the right front pillar frame of the right front pillar assembly, and a second air outlet 24 connected to the second air duct 23 is set between the pillars of the right front pillar assembly.

[0096] The plane formed by connecting the left front control box assembly and the lower window frame of the left side window is set to be nearly parallel to the optimal field of vision line when the driver, sitting in the driver's seat 10, turns his head to the left, so as to reduce the impact on the driver's side and lower field of vision.

[0097] The left and right front pillar assemblies are designed using the field of vision line. The pillar frames of both the left and right front pillar assemblies are made of standard profiles. The digital model is optimized by combining the results of vehicle body vibration fatigue simulation analysis to ensure that the left and right front pillar frames use the least amount of material and have the smallest obstruction angle, while meeting the requirements of vibration fatigue and FOPS. In addition, the designed decorative parts are all within the field of vision line of the obstruction angle, so as to minimize the impact on the field of vision.

[0098] In addition, the installation of a falling object protection device above the roof, a bottom protective grille above the bottom viewing window, and a front guard net 25 in front of the front viewing window effectively protects the cab and improves its safety performance. Furthermore, the connection points between the frame of the front guard net 25 and the roof 1 and floor 2 are all located in areas not visible to the driver to avoid affecting the driver's vision.

[0099] It should be noted that the above-mentioned cab is a cab where the driver's seat 10 is located on the left side of the cab, that is, the cab is a left-side cab; of course, the driver's seat 10 of the above-mentioned cab can also be located on the right side of the cab, that is, the cab is a right-side cab, and the other structures of the right-side cab can be mirror-symmetrical with the other structures of the left-side cab.

[0100] The working machinery provided by the present invention is described below. The working machinery described below can be referred to in correspondence with the cab described above.

[0101] The present invention provides a working machine that may include a cab as described in any of the above embodiments.

[0102] The beneficial effects achieved by the operating machinery provided by this invention are consistent with the beneficial effects achieved by the cab provided by this invention. Since the first lower window frame 8, the bottom plate 2, and the rear frame 3 of the first side window 6 of the cab are connected to form a triangular frame structure, and the second lower window frame 9, the bottom plate 2, and the rear frame 3 of the second side window 7 are connected to form a triangular frame structure, the main side frames on both sides of the cab can form a triangular design, which can enable it to withstand greater external forces and reduce the material used in the cab frame, eliminating the need to thicken the first front pillar assembly 4 and the second front pillar assembly 5. Furthermore, the front end of the first lower window frame 8 of the first side window 6 of the cab is connected to the bottom end of the first front pillar assembly 4, and the front end of the second lower window frame 9 of the second side window 7 of the cab is connected to the bottom end of the second front pillar assembly 5, which can effectively increase the driver's field of vision, reduce the use of auxiliary monitoring mirrors and rearview mirrors, and effectively reduce or eliminate safety hazards.

[0103] It should be noted that the aforementioned operating machinery can be excavators, loaders, dump trucks, or other construction machinery.

[0104] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0105] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention 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 of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A driver's cab, characterized in that, Includes a first front pillar assembly, a second front pillar assembly, a roof, a floor plate, a rear frame, a first side window, and a second side window, wherein: The first side window is connected to the top cover, the first front pillar assembly and the rear frame respectively. The front end of the first lower window frame of the first side window is connected to the bottom end of the first front pillar assembly, and the rear end of the first lower window frame of the first side window is connected to the rear frame. The first lower window frame of the first side window, the bottom plate and the rear frame form a triangle. The second side window is connected to the top cover, the second front pillar assembly and the rear frame respectively. The front end of the second lower window frame of the second side window is connected to the bottom end of the second front pillar assembly, and the rear end of the second lower window frame of the second side window is connected to the rear frame. The second lower window frame of the second side window, the bottom plate and the rear frame form a triangle. The driver's cab is equipped with a front control box assembly, which is located near the first side window. A reference eye point is connected to the first lower window frame to form a second plane. The top of the front control box assembly is located on or below the second plane. The reference eye point is the eye point position of a standard human model sitting in the driver's seat in a standard sitting posture in the driver's cab.

2. The driver's cab according to claim 1, characterized in that, Also includes: The front window is connected to the top cover, the first front pillar assembly, the second front pillar assembly and the base plate respectively. The reference eye point forms a first plane with the front end of the top cover, and the bottom end of the upper window frame of the front window is located on the first plane.

3. The driver's cab according to claim 2, characterized in that, Also includes: A bottom viewing window is provided on the floor plate and is located in front of the driver's seat.

4. The driver's cab according to claim 1, characterized in that, The first front pillar assembly includes: The first front column frame has two ends connected to the top cover and the bottom plate respectively, and a first air duct is provided inside the first front column frame. A first decorative element is disposed on the first front pillar frame. The first decorative element is located in the driver's cab. The first decorative element is provided with a first air vent. The first air vent is disposed facing the interior of the driver's cab. The first air vent is connected to the first air duct. The first decorative element is located within the projection range of the first front pillar frame.

5. The driver's cab according to claim 4, characterized in that, The second front pillar assembly includes: The second front column frame has two ends connected to the top cover and the bottom plate respectively, and a second air duct is provided inside the second front column frame; The second decorative element is disposed on the second front pillar frame and located in the driver's cab. The second decorative element is provided with a second air vent, which faces the interior of the driver's cab. The second air vent is connected to the second air duct, and the second decorative element is located within the projection range of the second front pillar frame.

6. The driver's cab according to claim 3, characterized in that, Also includes: A bottom protective grille is provided on the base plate, and the bottom protective grille covers the top of the bottom viewing window.

7. The driver's cab according to claim 2, characterized in that, Also includes: A front guard net is installed at the front end of the front window. The frame of the front guard net is connected to the top cover and the bottom plate respectively. The frame of the front guard net, the connection point between the front guard net and the top cover, and the connection point between the front guard net and the bottom plate are all located outside the driver's field of vision of the cab.

8. The driver's cab according to claim 1, characterized in that, Also includes: A falling object protection device is installed above the top cover, and the falling object protection device is used to cover the top cover.

9. The driver's cab according to claim 6, characterized in that, The bottom protective grille includes: A mesh screen is provided to cover the bottom viewing window; Multiple reinforcing ribs are provided on the grille and are distributed in a radiating pattern on both sides along the direction from the rear end to the front end of the cab.

10. A type of operating machinery, characterized in that, Includes the cab as described in any one of claims 1-9.

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