Excavator cab

Abstract

This utility model provides a cab for excavators, relating to the technical field of excavator cabs. The utility model includes a frame, with a door panel hinged to one side of the frame. A windshield is provided on one side of the frame. A protective device for protecting the windshield is provided on the outer surface of the frame. The protective device includes a flexible wire mesh, which is disposed on the outer surface of the frame outside the windshield. The bottom ends of two sliders are fixedly connected to the top two sides of the flexible wire mesh. Two grooves are formed on the outer surface of the frame. This utility model, by setting up a protective device and unfolding the flexible wire mesh on one side of the windshield, protects that side of the windshield, minimizing the risk of medium-sized stones flying and hitting the windshield during excavation work, thus improving the safety of the excavator cab.

Description

Technical Field

[0001] This utility model relates to the field of excavator cab technology, and more particularly to excavator cabs. Background Technology

[0002] An excavator is an earthmoving machine that uses a bucket to dig materials above or below the machine's bearing surface and load them into transport vehicles or unload them into a stockpile. The excavator cab is the work area where the excavator operator operates and controls the excavator.

[0003] When an excavator is operating, if the bucket collides with hard materials at an excessively steep angle or with excessive force, medium to large pieces of material may fly out. If the flying plastic hits the front window of the cab, it may shatter the window and enter the cab, causing injury to the operator and compromising the safety of the cab during use. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that when the bucket collides with hard materials during excavation work, if the cutting angle is too steep or the force is too strong, medium and large pieces of material will be splashed. If the splashed plastic hits the front glass of the cab, it may break the front glass and enter the cab, causing injury to the driver and resulting in low safety when using the cab. Therefore, this excavator cab is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cab for an excavator, comprising a frame, a door panel hinged to one side of the frame, a windshield provided on one side of the frame, and a protective device for protecting the windshield provided on the outer surface of the frame, the protective device comprising a flexible wire mesh, the flexible wire mesh being disposed on the outer surface of the frame located outside the windshield.

[0006] Preferably, the protective device further includes two sliders, the bottom ends of which are fixedly connected to the top two sides of the flexible wire mesh, the bottom two sides of which are fixedly connected to the front outer surface of the frame, the outer surface of the frame having two grooves, the sliders sliding on the inner walls of the grooves, a shaft rotatably connected to one side of the slider, a coil spring being provided at one end of the shaft, the two ends of the coil spring being fixedly connected to one side of the shaft and one side of the inner wall of the slider, a retaining plate being fixedly connected to the outer surface of the shaft, and a retaining groove being provided on one side of the top of the frame.

[0007] The effect achieved by the above-mentioned components is as follows: By setting up a flexible wire mesh, before the operator enters the excavator cab to operate the excavator, they can choose whether to use the protective device based on the hardness of the material in the excavation environment. When using the protective device, pulling one end of the shaft at the top of the flexible wire mesh at the front of the frame controls two sliders to slide upwards on the inner wall of the groove, causing the flexible wire mesh to unfold and protect the front side of the windshield at the front of the frame. When the rotating shaft moves close to the slot at the top of the frame, the rotating shaft shaft controls the locking plate on the outer surface of the shaft to rotate away from the frame and causes the coil spring to deform. After the locking plate is located on one side of the slot, releasing the rotating shaft coil spring to restore its original shape can lock the locking plate into the slot, fixing the unfolded flexible wire mesh on one side of the windshield. During the excavation process, the flexible wire mesh can protect the front of the windshield, minimizing the risk of medium-sized stones flying and hitting the windshield, causing injury to the operator.

[0008] Preferably, the surface of the card plate at the edge furthest from the shaft is arc-shaped.

[0009] The effect achieved by the above components is that by setting one end of the card plate to be arc-shaped, the card plate can be more easily inserted into the card slot.

[0010] Preferably, one end of the shaft is fixedly connected to a groove block, and grooves are respectively formed on both sides of the groove block.

[0011] The effect achieved by the above components is that by pinching the grooves on both sides of the slot, it is easier to control the rotation of the shaft and rotate the card plate out of the slot.

[0012] Preferably, a support rod is slidably connected to one end of the inner wall of the frame, and springs are respectively provided at the four corners of the support rod. The two ends of the springs are fixedly connected to one side of the support rod and one side of the inner wall of the frame, respectively.

[0013] The effect achieved by the above components is as follows: when the protective device is not used, the slider is located at the bottom of the inner wall of the slide groove, and the flexible wire mesh will be in a folded state. Pulling the frame rod controls the four corners of the frame rod to slide outward on the inner wall of the frame and stretch the spring. Then, the folded flexible wire mesh is placed between the frame rod and the frame. The spring pulls the frame rod to move towards the frame. The frame rod clamps the folded flexible wire mesh on the outer surface of the frame, fixing the position of the flexible wire mesh on one side of the frame for easy storage.

[0014] Preferably, a tie rod is fixedly connected to one side of the frame pole, and the outer surface of the tie rod is U-shaped.

[0015] The effect achieved by the above components is that holding the outer surface of the U-shaped tie rod makes it easier to control the movement of the tie rod and the support rod.

[0016] Preferably, an escape device is provided at the top of the frame. The escape device includes two rotating shafts. Cover plates are fixedly connected to the outer surfaces of the rotating shafts. Magnetic rods with opposite magnetic properties are respectively provided on one side of the two cover plates. A through groove is opened at the top of the frame. The upper and lower ends of the rotating shafts are rotatably connected to the top of the inner wall of the frame. The two cover plates are located inside the through groove.

[0017] The aforementioned components achieve the following effect: In the normal state of the cab, the two cover plates are located inside the through slot. The magnetic rods on one side of the two cover plates, which have opposite magnetic properties, attract each other and cause the two cover plates to stick together and close the top of the frame. When the driver encounters an accident while operating the excavator and cannot escape through the door panel, he can push the two cover plates at the top of the frame to rotate in a direction away from each other by rotating the shaft, opening the through slot at the top of the frame, and then escape through the through slot, further improving the safety of the excavator cab during use.

[0018] Preferably, the escape device further includes a sealing plate, the bottom end of which is fixedly connected to two inserts, and the top end of the frame has two slots.

[0019] The effect achieved by the above components is as follows: When the excavator is in normal use, the two inserts at the bottom of the sealing plate are inserted into the two slots at the top of the frame, and the sealing plate is installed at the top of the frame. The sealing plate seals the top of the through groove, thus preventing rainwater from entering the through groove and seeping into the cab as much as possible.

[0020] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, a protective device is installed. A flexible wire mesh is unfolded on one side of the windshield to protect one side of the windshield. This minimizes the risk of medium-sized stones flying onto the windshield and injuring the driver when the excavator is digging, thus improving the safety of the excavator cab. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the frame of this utility model; Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the frame of this utility model; Figure 4 This is a three-dimensional structural diagram of the slider of this utility model; Figure 5 This is a three-dimensional structural diagram of the cover plate of this utility model.

[0022] Legend: 1. Frame; 2. Protective device; 3. Escape device; 4. Door panel; 5. Windshield; 21. Slide rail; 22. Sliding block; 23. Flexible wire mesh; 24. Shaft; 25. Coil spring; 26. Clamping plate; 27. Clamping slot; 28. Frame rod; 29. ​​Spring; 210. Pull rod; 211. Groove block; 31. Through groove; 32. Rotating shaft; 33. Cover plate; 34. Magnetic rod; 35. Slot; 36. Sealing plate; 37. Insert block. Detailed Implementation

[0023] Example 1, such as Figure 1-3 As shown, the excavator cab includes a frame 1, a door panel 4 is hinged to one side of the frame 1, a windshield 5 is provided on one side of the frame 1, and a protective device 2 is provided on the outer surface of the frame 1 to protect the windshield 5. The protective device 2 includes a flexible wire mesh 23, which is provided on the outer surface of the frame 1 outside the windshield 5.

[0024] Reference Figure 1-4As shown in this embodiment: the protective device 2 further includes two sliders 22, the bottom ends of which are fixedly connected to the top two sides of the flexible wire mesh 23, and the bottom two sides of the flexible wire mesh 23 are fixedly connected to the front outer surface of the frame 1. Two grooves 21 are formed on the outer surface of the frame 1, and the sliders 22 slide on the inner wall of the grooves 21. A shaft 24 is rotatably connected to one side of the slider 22, and a coil spring 25 is provided at one end of the shaft 24. The two ends of the coil spring 25 are respectively connected to one side of the shaft 24 and the slider 22. A fixed connection is made to one side of the inner wall, and a clamping plate 26 is fixedly connected to the outer surface of the shaft 24. A slot 27 is opened on one side of the top of the frame 1. By setting up a flexible steel wire mesh 23, before the operator enters the excavator cab to operate the excavator, he can choose whether to use the protective device 2 according to the material hardness of the excavation environment. When using the protective device 2, pulling one end of the shaft 24 at the top of the flexible steel wire mesh 23 at the front end of the frame 1 controls two sliders 22 to slide upward on the inner wall of the groove 21, so that the flexible steel wire mesh 23 unfolds and opens the front of the frame 1. The front windshield 5 is protected at the front. When the rotating shaft 32 moves close to the slot 27 at the top of the frame 1, the shaft 32 shaft 24 controls the locking plate 26 on the outer surface of the shaft 24 to rotate away from the frame 1, causing the coil spring 25 to deform. After the locking plate 26 is located on one side of the slot 27, releasing the rotating shaft 32 and restoring the coil spring 25 to its original state allows the locking plate 26 to be inserted into the slot 27, fixing the flexible wire mesh 23 on one side of the windshield 5. During the excavation process, the flexible wire mesh 23 can protect the front windshield 5. The front of the windshield 5 is protected to minimize the impact of medium-sized stones flying onto the windshield 5 and causing injury to the driver. By installing the protective device 2, a flexible wire mesh 23 is unfolded on one side of the windshield 5 to protect one side of the windshield 5, thereby minimizing the impact of medium-sized stones flying onto the windshield 5 and causing injury to the driver when the excavator is digging, thus improving the safety of the excavator cab.

[0025] Reference Figure 2-4 As shown in this embodiment: the surface of the end of the card plate 26 away from the shaft 24 is arc-shaped. By setting the surface of the card plate 26 to be arc-shaped, the card plate 26 can be more easily inserted into the slot 27. One end of the shaft 24 is fixedly connected to a groove block 211. Grooves are opened on both sides of the groove block 211. By pinching the grooves on both sides of the groove block 211, it is easier to control the rotation of the shaft 24 and rotate the card plate 26 out of the slot 27.

[0026] Reference Figure 2-4As shown in this embodiment: a support rod 28 is slidably connected to one end of the inner wall of the frame 1. Springs 29 are respectively installed at the four corners of the support rod 28. The two ends of the springs 29 are fixedly connected to one side of the support rod 28 and one side of the inner wall of the frame 1, respectively. When the protective device 2 is not used, the slider 22 is located at the bottom of the inner wall of the slide groove 21, and the flexible wire mesh 23 will be in a folded state. Pulling the support rod 28 controls the four corners of the support rod 28 to slide outward on the inner wall of the frame 1 and stretch the springs 29. Then, the folded flexible wire mesh 23 is... The wire mesh 23 is placed between the support rod 28 and the frame 1. The support rod 28 is pulled towards the frame 1 by the spring 29. The folded flexible wire mesh 23 is clamped on the outer surface of the frame 1 by the support rod 28. The position of the flexible wire mesh 23 on one side of the frame 1 is fixed for easy storage. A pull rod 210 is fixedly connected to one side of the support rod 28. The outer surface of the pull rod 210 is U-shaped. Holding the outer surface of the U-shaped pull rod 210 makes it easier to control the movement of the pull rod 210 and the support rod 28.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown in this embodiment: an escape device 3 is provided at the top of the frame 1. The escape device 3 includes two rotating shafts 32. Cover plates 33 are fixedly connected to the outer surfaces of the rotating shafts 32. Magnetic rods 34 with opposite magnetic properties are respectively provided on one side of each of the two cover plates 33. A through groove 31 is opened at the top of the frame 1. The upper and lower ends of the rotating shafts 32 are rotatably connected to the top of the inner wall of the frame 1. The two cover plates 33 are located inside the through groove 31. In the normal state of the cab, the two cover plates 33 are located inside the through groove 31. The magnetic rods 34 with opposite magnetic properties on one side of the two cover plates 33 attract each other, causing the two cover plates 33 to stick together and close the top of the frame 1. When the driver is operating the excavator and encounters an accident and cannot escape through the door panel 4, The two cover plates 33 at the top of the frame 1 can be rotated in opposite directions via the pivot 32, opening the through slot 31 at the top of the frame 1, allowing escape through the through slot 31, further improving the safety of the excavator cab. The escape device 3 also includes a sealing plate 36, with two inserts 37 fixedly connected to the bottom of the sealing plate 36. Two slots 35 are opened at the top of the frame 1. When the excavator is in normal use, the two inserts 37 at the bottom of the sealing plate 36 are inserted into the two slots 35 at the top of the frame 1, and the sealing plate 36 is installed at the top of the frame 1. The sealing plate 36 seals the top of the through slot 31, preventing rainwater from entering the through slot 31 and seeping into the cab.

[0028] Working principle: Before operating the excavator, the driver uses the protective device 2. Pulling one end of the shaft 24 at the top of the flexible wire mesh 23 at the front of the frame 1 controls two sliders 22 to slide upwards along the inner wall of the groove 21, causing the flexible wire mesh 23 to unfold and protect the front side of the windshield 5 at the front of the frame 1. When the rotating shaft 32 moves close to the slot 27 at the top of the frame 1, the shaft 32 shaft 24 controls the locking plate 26 on its outer surface to rotate away from the frame 1, causing the coil spring 25 to deform. After the locking plate 26 is positioned on one side of the slot 27, releasing the rotating shaft 32 and restoring the coil spring 25 to its original position allows the locking plate 26 to be inserted into the slot 27, fixing the unfolded flexible wire mesh 23 on one side of the windshield 5. During excavation, the flexible wire mesh 23 protects the front of the windshield 5, minimizing the risk of medium-sized stones flying onto the windshield. The glass 5 smashes against the windshield 5, causing injury to the driver. When the driver is working on the excavator and an accident occurs, and escape is not possible through the door panel 4, the two cover plates 33 at the top of the frame 1 can be pushed to rotate in opposite directions via the pivot 32, opening the through slot 31 at the top of the frame 1, and then escaping through the through slot 31. When the protective device 2 is not used, the slider 22 is located at the bottom of the inner wall of the slide 21, and the flexible wire mesh 23 will be in a folded state. Pulling the frame rod 28 controls the four corners of the frame rod 28 to slide outward on the inner wall of the frame 1 and stretch the spring 29. Then, the folded flexible wire mesh 23 is placed between the frame rod 28 and the frame 1. The spring 29 pulls the frame rod 28 to move towards the frame 1. The frame rod 28 clamps the folded flexible wire mesh 23 on the outer surface of the frame 1, fixing the flexible wire mesh 23 on one side of the frame 1 for easy storage.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. Cab for excavators, comprising a frame (1), characterized in that: A door panel (4) is hinged to one side of the frame (1), and a windshield (5) is provided on one side of the frame (1). A protective device (2) is provided on the outer surface of the frame (1) to protect the windshield (5). The protective device (2) includes a flexible wire mesh (23), which is located on the outer surface of the frame (1) outside the windshield (5).

2. The cab for excavators according to claim 1, characterized in that: The protective device (2) also includes two sliders (22). The bottom ends of the two sliders (22) are fixedly connected to the top two sides of the flexible wire mesh (23). The bottom two sides of the flexible wire mesh (23) are fixedly connected to the front outer surface of the frame (1). The outer surface of the frame (1) has two grooves (21). The sliders (22) slide on the inner wall of the grooves (21). A shaft (24) is rotatably connected to one side of the slider (22). A coil spring (25) is provided at one end of the shaft (24). The two ends of the coil spring (25) are fixedly connected to one side of the shaft (24) and one side of the inner wall of the slider (22). A clamping plate (26) is fixedly connected to the outer surface of the shaft (24). A clamping groove (27) is provided on one side of the top of the frame (1).

3. The cab for excavators according to claim 2, characterized in that: The surface of the end edge of the card plate (26) away from the shaft (24) is arc-shaped.

4. The cab for excavators according to claim 3, characterized in that: One end of the shaft (24) is fixedly connected to a groove block (211), and grooves are respectively opened on both sides of the groove block (211).

5. The cab for excavators according to claim 4, characterized in that: A support rod (28) is slidably connected to one end of the inner wall of the frame (1). Springs (29) are respectively provided at the four corners of the support rod (28). The two ends of the springs (29) are fixedly connected to one side of the support rod (28) and one side of the inner wall of the frame (1).

6. The cab for excavators according to claim 5, characterized in that: A tie rod (210) is fixedly connected to one side of the support rod (28), and the outer surface of the tie rod (210) is U-shaped.

7. The cab for excavators according to claim 1, characterized in that: An escape device (3) is provided at the top of the frame (1). The escape device (3) includes two rotating shafts (32). A cover plate (33) is fixedly connected to the outer surface of the rotating shaft (32). A magnetic rod (34) with opposite magnetic properties is provided on one side of each of the two cover plates (33). A through groove (31) is opened at the top of the frame (1). The upper and lower ends of the rotating shaft (32) are rotatably connected to the top of the inner wall of the frame (1). The two cover plates (33) are located inside the through groove (31).

8. The cab for excavators according to claim 7, characterized in that: The escape device (3) also includes a sealing plate (36), the bottom end of which is fixedly connected to two inserts (37), and the top end of the frame (1) has two slots (35).

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