Cab for a construction machine with a top viewing window

Abstract

The utility model discloses a kind of cab with top observation window for engineering machinery, including cab, and one end of cab is provided with processing assembly one, processing assembly one includes window, adjusting component and protection component, window is opened in one end of cab, adjusting component is arranged inside window, protection component is arranged on adjusting component, processing assembly one is rotated around rotating shaft by electric push rod drive adjusting frame, realizes the stepless regulation of window opening angle, so that operator can flexibly adjust observation visual field range according to operation demand, effectively solve the problem that traditional fixed structure observation angle is limited, simultaneously adjustable opening design significantly improves the ventilation performance of cab, with the embedding structure of sealing convex and sealing groove and folding protective net, under the premise of guaranteeing dustproof and rainproof sealing property, the dynamic balance of observation and ventilation function is realized, and the operation efficiency and operation comfort of engineering machinery under different working conditions are improved.

Description

Technical Field

[0001] This utility model relates to the field of cab technology for construction machinery, specifically to a cab for construction machinery with a top observation window. Background Technology

[0002] The observation window on the top of the cab of construction machinery is a special lighting device designed to improve the operator's field of vision and enhance operational safety. It is typically installed in the roof area of ​​the cab and used to observe suspended objects, excavation depth, or the surrounding environment under complex working conditions. Existing technologies offer various solutions for top observation windows, primarily achieving basic lighting functions through fixed or easily operable structures. Some solutions are supplemented with manual sunshades or single-layer sealing structures to strike a balance between protection and observation needs.

[0003] However, most existing top observation windows adopt a fixed window structure. This design is usually based on cost-effectiveness and ease of manufacturing, but it cannot flexibly adjust the opening angle according to the needs of the operation, resulting in a limited observation range. Especially when it is necessary to adapt to different lighting conditions or changes in field of vision, the ventilation performance is also insufficient, affecting the overall user experience and work efficiency.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a cab for engineering machinery with a top observation window to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows: A cab for engineering machinery with a top observation window includes a cab, a processing component one is provided at one end of the cab, the processing component one includes a window, an adjustment component and a protective component, the window is opened at one end of the cab, the adjustment component is located inside the window, the protective component is located on the adjustment component, and the adjustment component is provided with a processing component two.

[0007] Furthermore, the adjustment component includes a mounting frame, which is fixed inside the window by bolts. The inner wall of the mounting frame is symmetrically provided with rotating shafts, and electric push rods are connected to the rotating shafts. The moving end of the electric push rods is connected to the adjustment frame.

[0008] Furthermore, the inner wall of the adjustment frame is provided with a window, and the window is adapted to the interior of the adjustment frame.

[0009] Furthermore, the protective component includes a protective frame, which is bolted to one end of the adjusting frame. One end of the adjusting frame is provided with a sealing protrusion, and the outer wall of the sealing protrusion is provided with sealing strips at equal intervals.

[0010] Furthermore, a sealing groove is provided at one end of the mounting frame, and the sealing protrusion and sealing strip are adapted to the sealing groove. A folded protective net is provided between the adjustment frame and the mounting frame.

[0011] Furthermore, the outer wall of the adjustment frame is provided with a guide protrusion, and a sealing strip is provided at one end of the guide protrusion, with one end of the sealing strip contacting one end of the cab.

[0012] Furthermore, the second processing component includes a mounting base, which is symmetrically fixed inside the window. A storage tube is provided on the mounting base, and a sunshade is connected inside the storage tube through an adjustment structure. One end of the sunshade is provided with a first locking seat, and the inner wall of the window is provided with a second locking seat, and the second locking seat and the first locking seat are locked together.

[0013] The beneficial effects of this utility model are as follows: (1) The processing component drives the adjustment frame to rotate around the pivot by an electric push rod, realizing stepless adjustment of the window opening angle. This allows the operator to flexibly adjust the field of view according to the work requirements, effectively solving the problem of limited observation angle in traditional fixed structures. At the same time, the adjustable opening design significantly improves the ventilation performance of the cab. Combined with the interlocking structure of the sealing protrusion and sealing groove and the folding protective net, it achieves a dynamic balance between observation and ventilation functions while ensuring dustproof and rainproof sealing, thereby improving the operating efficiency and operating comfort of the construction machinery under different working conditions.

[0014] (2) By setting up processing component two, the operator can manually adjust the coverage area of ​​the sunshade according to the changes in lighting conditions, which effectively solves the problem of blurred vision caused by strong direct sunlight and improves the clarity of observation under different lighting conditions. This component operates independently of the adjustment component. It can block the top sunlight when the window is open and adjust the indoor lighting when it is closed. Its quick snap-fit ​​design with the snap-fit ​​seat one enables one-handed operation, improves the ease of use, and extends the service life of the window and sealing components. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a cab for engineering machinery with a top observation window according to an embodiment of the present utility model; Figure 2This is an exploded view of the overall structure of a cab for engineering machinery with a top observation window according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the processing component of a cab for engineering machinery with a top observation window according to an embodiment of the present utility model; Figure 4 This is a side sectional view of a processing component of a cab for engineering machinery with a top observation window according to an embodiment of the present utility model. Figure 5 This is a bottom view of the structure of a processing component for a cab of engineering machinery with a top observation window according to an embodiment of the present utility model; Figure 6 This is a partial exploded view of the processing assembly of a cab for engineering machinery with a top observation window according to an embodiment of the present utility model. Figure 7 This is a partial structural side sectional view of a processing component of a cab for engineering machinery with a top observation window according to an embodiment of the present utility model; Figure 8 This is a schematic diagram of the processing component two of a cab for engineering machinery with a top observation window according to an embodiment of the present utility model; Figure 9 This is a side view of the processing component two of a cab for engineering machinery with a top observation window, according to an embodiment of the present utility model.

[0017] In the picture: 1. Cab; 2. Window; 3. Adjustment component; 4. Protective component; 5. Processing component two; 6. Mounting frame; 7. Rotary shaft; 8. Electric push rod; 9. Adjustment frame; 10. Window body; 11. Protective frame; 12. Sealing protrusion; 13. Sealing strip one; 14. Sealing groove; 15. Folding protective net; 16. Guide protrusion; 17. Sealing strip two; 18. Mounting base; 19. Storage tube; 20. Sunshade; 21. Snap-on base one; 22. Snap-on base two. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example 1: like Figures 1-7As shown, a cab for construction machinery with a top observation window according to an embodiment of the present utility model includes a cab 1. A processing component 1 is provided at one end of the cab 1. The processing component 1 includes a window 2, an adjustment component 3, and a protective component 4. The window 2 is opened at one end of the cab 1, the adjustment component 3 is disposed inside the window 2, and the protective component 4 is disposed on the adjustment component 3. The adjusting component 3 includes a mounting frame 6, which is fixed inside the window 2 by bolts. The inner wall of the mounting frame 6 is symmetrically provided with a rotating shaft 7, and an electric push rod 8 is connected to the rotating shaft 7. The electric push rod 8 is controlled by a main controller (such as a PLC controller). The main controller receives operation signals (such as button or switch signals) from the cab and outputs an electrical signal to drive the motor of the electric push rod 8 to rotate forward and backward, thereby adjusting the extension and retraction of the push rod. The control program includes a position feedback mechanism (such as detecting the angle of the adjusting frame 9 through a limit switch or encoder) to ensure that the adjusting frame 9 is stably stopped at the required position. The power connection adopts an industrial standard interface (such as 24VDC), and the circuit wiring complies with the electrical safety specifications for engineering machinery. The moving end of the electric push rod 8 is connected to the adjusting frame 9. The inner wall of the adjusting frame 9 is provided with a window 10, and the window 10 is adapted to the interior of the adjusting frame 9. The protective component 4 includes a protective frame 11, which is bolted to one end of the adjusting frame 9. One end of the adjusting frame 9 has a sealing protrusion 12, and sealing strips 13 are evenly spaced on the outer wall of the sealing protrusion 12. One end of the mounting frame 6 has a sealing groove 14, and the sealing protrusion 12 and sealing strips 13 are adapted to the sealing groove 14. A folded protective net 15 is provided between the adjusting frame 9 and the mounting frame 6. The folded protective net 15 is made of a flexible, weather-resistant material (such as polyurethane-coated fabric or rubber) and has an accordion-style pleated structure. The telescopic structure is fixed at both ends to the outer wall of the adjustment frame 9 and the inner wall of the mounting frame 6 by bolts. When the electric push rod 8 drives the adjustment frame 9 to move, the folded protective net 15 extends or compresses accordingly, always covering the gap between the adjustment frame 9 and the mounting frame 6, preventing dust, rainwater and other foreign objects from entering the cab. The pleated structure allows the adjustment frame 9 to remain sealed when adjusted at multiple angles. The outer wall of the adjustment frame 9 is provided with a guide protrusion 16, and one end of the guide protrusion 16 is provided with a sealing strip 17, and one end of the sealing strip 17 is in contact with one end of the cab 1.

[0020] Example 2: like Figures 1-2 , Figure 8 , Figure 9As shown, according to an embodiment of the present invention, a cab for engineering machinery with a top observation window is provided on the adjusting component 3. The adjusting component 3 is provided with a processing component 2 5. The processing component 2 5 includes a mounting base 18, which is symmetrically fixed inside the window 2. A storage tube 19 is provided on the mounting base 18. A sunshade 20 is connected inside the storage tube 19 through an adjusting structure. The adjusting structure consists of a rotating shaft, a return spring, and a sleeve. The specific setting is a conventional technical means, so it will not be described in detail. One end of the sunshade 20 is provided with a snap-fit ​​seat 21, and the inner wall of the window 2 is provided with a snap-fit ​​seat 22. The snap-fit ​​seat 22 and the snap-fit ​​seat 21 are snap-fitted together. All electrical components mentioned in this document are electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control functions. Existing publicly available power connection technologies are not described in detail here. The control method of this application is through a controller. The control circuit of the controller can be implemented by a person skilled in the art through simple programming. The power supply is also common knowledge in the art. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here. Connect the industrial power interface to power on the device, and the PLC system controls the entire device to operate as expected.

[0021] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0022] In summary, with the help of the above-mentioned technical solution of this utility model, when it is necessary to open the top observation window, the electric push rod 8 is activated and performs an extension action. Its moving end pushes the adjustment frame 9 to rotate upward around the pivot 7 of the inner wall of the mounting frame 6. The adjustment frame 9 drives the window 10 to rise synchronously. During this process, the guide protrusion 16 slides along the top surface of the cab 1, and the sealing strip 17 always adheres to the outer wall of the cab 1 to maintain dynamic sealing. As the angle between the adjustment frame 9 and the mounting frame 6 gradually increases, the pre-folded protective net 15 is stretched and unfolded to form a mesh protective barrier in the window 2 area. When the adjustment frame 9 is raised to the target angle, the electric push rod 8 locks itself in place. At this time, the sealing protrusion 12 at the end of the adjustment frame 9 completely disengages from the sealing groove 14 of the mounting frame 6, realizing the fully open state of the window 2. The operator can observe the top through the window 10. When the top observation window needs to be closed, the electric push rod 8 retracts, the moving end pulls back the adjustment frame 9 and flips it downward around the pivot 7, the window 10 descends synchronously with the adjustment frame 9, the guide protrusion 16 slides in the opposite direction, the sealing strip 17 continues to adhere tightly to the seal, and the folding protective net 15 gradually folds and is stored under the pressure of the adjustment frame 9. When the adjustment frame 9 approaches the mounting frame 6, the sealing protrusion 12 is embedded in the sealing groove 14, and the sealing strip 13 is deformed under pressure to fill the gap, achieving a primary seal; at the same time, the protective frame 11 presses against the end face of the mounting frame 6 to form a rigid protection. The multiple sealing structures completely seal the window 2, preventing external dust and rainwater from intruding. Processing component 2 5 and adjusting component 3 can be used independently in conjunction. When shading is needed, the sunshade curtain 20 is manually pulled out from the storage tube 19, and the curtain slides along the inner wall of the window 2 to the coverage area. Then, the first locking seat 21 is inserted into the second locking seat 22 to complete the positioning and realize the light adjustment. When storing, the locking is released, and the internal reset mechanism of the storage tube 19 automatically rolls back the sunshade curtain 20.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cab for engineering machinery with a top observation window, comprising a cab (1), characterized in that, One end of the cab (1) is provided with a processing component one, which includes a window (2), an adjustment component (3) and a protective component (4). The window (2) is opened at one end of the cab (1), the adjustment component (3) is located inside the window (2), the protective component (4) is located on the adjustment component (3), and the adjustment component (3) is provided with a processing component two (5).

2. The cab for engineering machinery with a top observation window according to claim 1, characterized in that, The adjustment component (3) includes a mounting frame (6), which is fixed inside the window (2) by bolts. A rotating shaft (7) is symmetrically arranged on the inner wall of the mounting frame (6). An electric push rod (8) is connected to the rotating shaft (7), and the moving end of the electric push rod (8) is connected to the adjustment frame (9).

3. The cab for engineering machinery with a top observation window according to claim 2, characterized in that, The inner wall of the adjustment frame (9) is provided with a window (10), and the window (10) is adapted to the interior of the adjustment frame (9).

4. The cab for engineering machinery with a top observation window according to claim 3, characterized in that, The protective component (4) includes a protective frame (11), which is bolted to one end of the adjusting frame (9). A sealing protrusion (12) is provided at one end of the adjusting frame (9), and sealing strips (13) are provided at equal intervals on the outer wall of the sealing protrusion (12).

5. A cab for engineering machinery with a top observation window according to claim 4, characterized in that, A sealing groove (14) is provided at one end of the mounting frame (6), and the sealing protrusion (12) and sealing strip (13) are adapted to the sealing groove (14). A folded protective net (15) is provided between the adjustment frame (9) and the mounting frame (6).

6. A cab for engineering machinery with a top observation window according to claim 5, characterized in that, The outer wall of the adjustment frame (9) is provided with a guide protrusion (16), and a sealing strip (17) is provided at one end of the guide protrusion (16), and one end of the sealing strip (17) is in contact with one end of the cab (1).

7. A cab for engineering machinery with a top observation window according to claim 1, characterized in that, The second processing component (5) includes a mounting base (18), which is symmetrically fixed inside the window (2). A storage tube (19) is provided on the mounting base (18). A sunshade (20) is connected inside the storage tube (19) through an adjustment structure. A snap-fit ​​seat (21) is provided at one end of the sunshade (20). A snap-fit ​​seat (22) is provided on the inner wall of the window (2), and the snap-fit ​​seat (22) and the snap-fit ​​seat (21) are snap-fitted together.

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