Excavator cab

Abstract

The invention discloses an excavator cab, and belongs to the field of excavator cables.The excavator cab comprises a top cover body, a connecting shell is fixedly installed at the bottom of the top cover body and used for being connected with an outer shell of an excavator, and the excavator cab further comprises a driving assembly which comprises supporting plates evenly and fixedly installed on the upper portion of the top cover body; a fixed frame is fixedly installed on the upper portion of each supporting plate, a movable plate is rotationally installed on the front wall of each supporting plate, knocking plates are arranged on the two sides of each movable plate, the two sets of knocking plates are rotationally installed on the inner wall of the fixed frame, and the two sets of knocking plates make contact with the inner wall of the fixed frame; according to the top cover, birds which stay and are about to fly on the top of the top cover body can be frightened, the birds are made to fly away, the situation that materials on the top cover body fade, are corroded and abraded due to the fact that the birds stay to discharge excrement to the top of the top cover body can be avoided, and the service life of the top cover body can be effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the field of excavator cabs, and more particularly to an excavator cab. Background Art

[0002] An excavator is an earth-moving machine that uses a bucket to dig materials above or below the surface of the machine and load them into transport vehicles or unload them to a stockpile. The working environment of an excavator is complex and changeable, and it often works in the open air. The cab shields the driver from wind and rain, dust and foreign objects, ensuring that the driver has a good working environment. For example, in a dusty construction site or in heavy rain, the cab can ensure that the driver has a clear field of vision and a dry body, reducing operational errors caused by harsh environments.

[0003] After the driver uses the excavator, he usually parks it outdoors. Birds usually forage for food and find habitats in outdoor environments, and the top cover of the excavator provides a higher platform that will attract birds to stay. In this case, the birds will stay on the top cover of the excavator to rest and usually excrete feces on the top cover of the excavator. The bird feces contain uric acid, bile pigments and other ingredients, which are acidic. If they accumulate on the top cover of the excavator for a long time, it will cause the top cover material to fade, corrode or wear, and shorten the service life of the top cover, thereby reducing the quality of the top cover. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide an excavator cab, which can scare birds that stay or are about to land on the top of the top cover body and make them fly away, and can prevent birds from staying and excreting feces on the top of the top cover body, thereby causing fading, corrosion and wear of the material on the top cover body, and can effectively improve the service life of the top cover body.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] An excavator cab comprises a top cover body, a connecting shell is fixedly installed at the bottom of the top cover body, and the connecting shell is used to be connected to the outer shell of the excavator. Also includes: A driving away component, which includes support plates that are evenly fixedly installed on the upper part of the top cover body, a fixed frame is fixedly installed on the upper part of the support plates, a movable plate is rotatably installed on the front wall of the support plates, knocking plates are arranged on both sides of the movable plates, two groups of the knocking plates are rotatably installed with the inner wall of the fixed frame, the two groups of the knocking plates are in contact with the inner wall of the fixed frame, elastic ropes are fixedly installed between the two groups of the knocking plates and the inner wall of the fixed frame, movable rods are rotatably installed on the two side walls of the movable plate, sliders are rotatably installed on the other ends of the two groups of the movable rods, the two groups of the sliders are slidably installed with the side walls of the adjacent knocking plates, and two groups of barrier plates are fixedly installed on the two side walls of the movable plate, and the wind blows the movable plate to deflect, which will produce knocking sounds to drive away birds.

[0007] Furthermore, a water storage cavity is provided in the top cover body, and arc grooves compatible with the movable plate are evenly provided on the upper surface of the top cover body, and leakage holes connected to the water storage cavity are provided on the bottom wall of the inner cavity of the arc groove, and a filter screen is fixedly installed on the top wall of the inner cavity of each group of the leakage holes, and a heat insulation layer is provided on the upper side of the water storage cavity, and the heat insulation layer is fixedly installed in the top cover body.

[0008] Furthermore, a vertical plate 1 is fixedly installed on one side of the upper part of the top cover body, a circular tube is fixedly installed on one side of the vertical plate 1, a vertical plate 2 is provided on the side of the circular tube away from the vertical plate 1, a fan blade 1 is rotatably installed on the vertical plate 2, a fan blade 2 is provided in the circular tube, the fan blade 2 is fixedly connected to one end of the fan blade 1, a circulation pipe is fixedly installed in the inner cavity of the water storage cavity, one end of the circulation pipe is fixedly connected to an air intake pipe, and the other end of the air intake pipe passes through the top cover body and the vertical plate 1 and is connected to the inside of the circular tube.

[0009] Furthermore, an exhaust cavity is provided between the water storage cavity and the insulation layer, and the exhaust cavity is opened in the top cover body. The other end of the circulation pipe passes through the top cover body and is connected with the exhaust cavity. Both sides of the exhaust cavity are connected with each group of leakage holes, and a one-way valve is installed at the connection between each group of leakage holes and the exhaust cavity.

[0010] Furthermore, cavities are evenly arranged on the lower side of the water storage cavity, and the inner cavity of each group of the cavities is slidably installed with a T-shaped tooth plate, a reset spring is fixedly installed between one side of the T-shaped tooth plate and the inner cavity wall of the cavity, and a fixed ball is arranged on the other side of the T-shaped tooth plate, and the fixed ball is in contact with the inner cavity bottom wall of the cavity.

[0011] Furthermore, T-shaped rotating rods are evenly rotatably installed in the top cover body, the top and bottom ends of each group of the T-shaped rotating rods are respectively located in the inner cavity of the water storage cavity and the adjacent cavity, and gears are fixedly installed on the rod wall of each group of the T-shaped rotating rods, and each group of the gears is meshed with the adjacent T-shaped toothed plates.

[0012] Furthermore, protective pads are provided on both sides of the fixed ball, and two groups of the protective pads are respectively fixedly mounted on the inner cavity side walls of the adjacent T-shaped tooth plates and the top cover body.

[0013] Furthermore, a drain pipe is fixedly mounted on one side wall of the top cover body, a valve is mounted on the drain pipe, and the drain pipe is communicated with the inner cavity of the water storage cavity.

[0014] Furthermore, a shielding frame is slidably mounted on the outer wall of the fixed frame, a threaded rod is rotatably mounted on the top of the fixed frame, and the shielding frame is threadedly connected to the threaded rod.

[0015] Furthermore, the heat insulation layer is made of glass fiber, and the heat insulation layer is used to block the heat generated by the top wall of the top cover body from the water storage cavity.

[0016] Compared with the prior art, the present invention has the following beneficial effects: (1) In the process of deflection of the movable plate driven by wind, the knocking plate and the elastic rope cooperate to produce knocking sound and vibration at the same time, which can scare the birds that stay on the top cover body and are about to land on the top of the top cover body, and make the birds fly away. It can prevent the birds from staying and dropping their feces on the top of the top cover body, thereby causing fading, corrosion and wear of the material on the top cover body, playing a driving role, and effectively improving the service life of the top cover body, thereby effectively improving the quality of the top cover body.

[0017] (2) In this scheme, on rainy days, the wind blows the movable plate to deflect, and with the cooperation of the elastic rope, the knocking plate knocks on the fixed frame to generate vibration, and the shock wave is transmitted to the top cover body through the support plate. The vibration of the top cover body can improve the fluidity of rainwater in the arc groove and facilitate the rainwater to flow into the water storage cavity through the leakage hole, which can effectively improve the rainwater collection efficiency and play a role in resource utilization, so as to facilitate the utilization of rainwater resources.

[0018] (3) This solution provides a driving component when the rain stops. With the help of external wind, the driving component will knock and vibrate the fixed frame, and the shock wave will be transmitted to the top cover body, thereby improving the fluidity of raindrops on the surface of the top cover body and shaking off the rainwater remaining on the top of the top cover body, thereby avoiding the residual rainwater that causes rust and corrosion on the top cover body, and effectively improving the service life and quality of the top cover body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a first overall structural schematic diagram of the present invention; Figure 2 It is a second overall structural schematic diagram of the present invention; Figure 3 It is an overall top view of the present invention; Figure 4 It is an overall cross-sectional view of the present invention; Figure 5 For the present invention Figure 4 A magnified view of the structure of the middle part A; Figure 6 For the present invention Figure 4 A magnified view of the structure of the middle B section; Figure 7 For the present invention Figure 4 Enlarged view of the structure of section C.

[0020] Description of the numbers in the figure: 1. Top cover body; 2. Connecting shell; 3. Support plate; 4. Fixed frame; 5. Movable plate; 6. Knocking plate; 7. Cavity; 8. Elastic rope; 9. Movable rod; 10. Slider; 11. Blocking plate; 12. Threaded rod; 13. Shielding frame; 14. Water storage chamber; 15. Arc groove; 16. Leakage hole; 17. Filter screen; 18. Insulation layer; 19. Circulation pipe; 20. Vertical plate one; 21. Circular tube; 22. Vertical plate two; 23. Blade one; 24. Blade two; 25. Inlet pipe; 26. Exhaust chamber; 27. T-shaped tooth plate; 28. Gear; 29. ​​T-shaped rotating rod; 30. Fixed ball; 31. Reset spring; 32. Protective pad; 33. Drain pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0022] See also Figures 1 to 7An excavator cab comprises a top cover body 1, a connecting shell 2 is fixedly mounted on the bottom of the top cover body 1, and the connecting shell 2 is used to connect with the outer shell of the excavator. Also includes: A driving component, which includes a support plate 3 uniformly fixedly installed on the upper part of the top cover body 1, a fixed frame 4 is fixedly installed on the upper part of the support plate 3, a movable plate 5 is rotatably installed on the front wall of the support plate 3, a knocking plate 6 is arranged on both sides of the movable plate 5, two groups of knocking plates 6 are rotatably installed with the inner wall of the fixed frame 4, the two groups of knocking plates 6 are in contact with the inner wall of the fixed frame 4, elastic ropes 8 are fixedly installed between the two groups of knocking plates 6 and the inner wall of the fixed frame 4, movable rods 9 are rotatably installed on the two side walls of the movable plate 5, the other ends of the two groups of movable rods 9 are rotatably installed with sliders 10, the two groups of sliders 10 are slidably installed with the side walls of adjacent knocking plates 6, and two groups of blocking plates 11 are fixedly installed on the two side walls of the movable plate 5. The wind blows the movable plate 5 to deflect, which will produce a knocking sound to drive away birds.

[0023] First, the connecting shell 2 is snapped onto the top wall of the outer shell of the excavator cab, and then the connecting shell 2 and the outer shell of the cab are fixed together by screws. When the driver drives the excavator and parks it outdoors, wind will be generated outdoors at any time and anywhere. When the wind blows through the movable plate 5 from the right side, the two groups of blocking plates 11 on one side of the movable plate 5 can be set to prevent the wind from blowing on the side wall of the movable plate 5 and spreading at the first time. The wind can be gathered so that the wind force passing through the two groups of blocking plates 11 directly acts on the right side wall of the movable plate 5, which can be used to blow the movable plate 5 to deflect. At this time, the lower half of the movable plate 5 will deflect to the left, and the upper half of the movable plate 5 will deflect to the right. The upper half of the movable plate 5 pushes the right slider 10 to slide downward on the right knocking plate 6 through the right movable rod 9. At the same time, the upper half of the movable plate 5 pulls the left slider 10 through the left movable rod 9 and drives the left knocking plate 6 to deflect to the right. At this time, the left knocking plate 6 deflects to the right and moves away from the left side of the fixed frame 4. The inner cavity wall and stretches the elastic rope 8 on the left side. When the external wind stops generating a blowing force on the movable plate 5, at this time, under the action of the left elastic rope 8, the left elastic rope 8 returns to its initial state, and the left elastic rope 8 pulls the knocking plate 6 to deflect to the initial position. In the initial state, the elastic rope 8 is in a stretched state, so that the knocking plate 6 is tightly attached to the inner cavity wall of the fixed frame 4. At this time, it can be achieved that when the left elastic rope 8 pulls the knocking plate 6 to deflect to the initial position, the knocking plate 6 will knock the inner cavity wall of the fixed frame 4. When the wind blows from the left side to the left side wall of the movable plate 5, it is the same. It can be achieved that knocking sounds and vibrations are generated while knocking, which can scare the birds staying on the top cover body 1 and about to fly on the top of the top cover body 1, and make the birds fly away, which can prevent the birds from staying and excreting feces on the top of the top cover body 1, thereby causing the material on the top cover body 1 to fade, corrode and wear, which plays a role in driving away, can effectively improve the service life of the top cover body 1, thereby effectively improving the quality of the top cover body 1.

[0024] like Figures 1 to 4 and Figure 6 As shown, a water storage chamber 14 is provided in the top cover body 1, and arc grooves 15 compatible with the movable plate 5 are evenly provided on the upper surface of the top cover body 1. The bottom wall of the inner cavity of the arc groove 15 is provided with leakage holes 16 connected to the water storage chamber 14, and the inner cavity top wall of each group of leakage holes 16 is fixedly installed with a filter screen 17, and a heat insulation layer 18 is provided on the upper side of the water storage chamber 14, and the heat insulation layer 18 is fixedly installed in the top cover body 1.

[0025] A vertical plate 20 is fixedly installed on one side of the upper part of the top cover body 1, a circular tube 21 is fixedly installed on one side of the vertical plate 20, a vertical plate 22 is arranged on the side of the circular tube 21 away from the vertical plate 20, a fan blade 23 is rotatably installed on the vertical plate 22, a fan blade 24 is arranged in the circular tube 21, and the fan blade 24 is fixedly connected to one end of the fan blade 23, a circulation pipe 19 is fixedly installed in the inner cavity of the water storage cavity 14, one end of the circulation pipe 19 is fixedly connected to an air intake pipe 25, and the other end of the air intake pipe 25 passes through the top cover body 1 and the vertical plate 20 and is connected with the inside of the circular tube 21.

[0026] An exhaust chamber 26 is provided between the water storage chamber 14 and the insulation layer 18. The exhaust chamber 26 is opened in the top cover body 1. The other end of the circulation pipe 19 passes through the top cover body 1 and is connected with the exhaust chamber 26. Both sides of the exhaust chamber 26 are connected with each group of leakage holes 16. A one-way valve is installed in the connection between each group of leakage holes 16 and the exhaust chamber 26.

[0027] When it rains outdoors, rainwater will fall on the top of the top cover body 1 and the arc groove 15, and the rainwater will flow downward along the inner arc surface of the arc groove 15. When the rainwater passes through the top of the leakage hole 16, it will be filtered through the filter screen 17 and then discharged into the water storage chamber 14. When it rains, wind will also be generated at any time. When wind blows through the movable plate 5, the knocking plate 6 will knock on the fixed frame 4 and generate vibration. The shock wave will be transmitted to the top cover body 1 through the support plate 3. The vibration of the top cover body 1 can achieve the purpose of improving the arc. The fluidity of rainwater in the shaped groove 15 is improved, and it is convenient for rainwater to flow into the water storage chamber 14 through the leakage hole 16, which can effectively improve the collection efficiency of rainwater and play a role in utilizing resources, so as to facilitate the utilization of rainwater resources. At the same time, on the basis of improving the fluidity of rainwater by vibration, when the rain stops, the rainwater remaining on the top of the top cover body 1 can be shaken off, which can avoid the situation that the rainwater remains and causes rust and corrosion on the top cover body 1, and can effectively improve the service life and quality of the top cover body 1; When the weather is hot, the top cover body 1 can be cooled by setting the rainwater in the water storage chamber 14, and the heat generated above it can be blocked by setting the heat insulation layer 18, so as to prevent the rainwater in the water storage chamber 14 from being heated by the sun, so that the rainwater in the water storage chamber 14 can be kept cool, and the time for the temperature of the top cover body 1 to rise can be delayed. When the wind blows through the fan blade 1 23 or the driver drives the excavator, the wind will drive the fan blade 1 23 to rotate, and the rotation of the fan blade 1 23 will drive the fan blade 24 to rotate synchronously. The rotation of the fan blade 24 will blow the outside wind into the circular tube 21, so that the wind in the circular tube 21 can be discharged into the circulation pipe 19 through the air intake pipe 25. The gas flows in the inner cavity of the circulation pipe 19, so as to keep the coolness of the rainwater in the water storage chamber 14 and avoid the situation of rising. The cooling efficiency of the top cover body 1 can be effectively improved, and the driving comfort of the driver can be improved at the same time. When the fan blade 24 blows the gas through the air inlet pipe 25 and discharges it into the circulation pipe 19, the gas will eventually be discharged into the exhaust chamber 26 at the other end of the circulation pipe 19. The gas in the exhaust chamber 26 will be discharged into the leakage hole 16 through the connection with the leakage hole 16 and discharged. When the gas in the leakage hole 16 is discharged, it will pass through the filter 17, so that the impurities remaining on the filter 17 can be blown out, and the filter 17 can be avoided from being blocked, so that the rainwater can be collected again next time.

[0028] like Figure 4 and Figure 7 As shown, cavities 7 are evenly arranged on the lower side of the water storage chamber 14, and a T-shaped tooth plate 27 is slidably installed in the inner cavity of each group of cavities 7. A reset spring 31 is fixedly installed between one side of the T-shaped tooth plate 27 and the inner cavity wall of the cavity 7, and a fixed ball 30 is arranged on the other side of the T-shaped tooth plate 27, and the fixed ball 30 is in contact with the inner cavity bottom wall of the cavity 7.

[0029] T-shaped rotating rods 29 are evenly rotated and installed in the top cover body 1. The top and bottom ends of each group of T-shaped rotating rods 29 are respectively located in the inner cavity of the water storage chamber 14 and the adjacent cavity 7. Gears 28 are fixedly installed on the rod wall of each group of T-shaped rotating rods 29, and each group of gears 28 is meshed with the adjacent T-shaped toothed plates 27.

[0030] Protection pads 32 are provided on both sides of the fixed ball 30 , and two groups of protection pads 32 are fixedly mounted on the adjacent T-shaped toothed plates 27 and the inner cavity side walls of the top cover body 1 , respectively.

[0031] When the driver drives the excavator to move, there will be bumps. When the excavator is bumped, it will tilt. When the excavator tilts, the fixed ball 30 will roll along the inner cavity of the cavity 7. When the fixed ball 30 rolls and contacts the protective pad 32 on the T-shaped tooth plate 27, the rolling force of the fixed ball 30 will push the T-shaped tooth plate 27 to move to the left. The setting of the protective pad 32 can reduce the sound generated by the collision of the fixed ball 30, and can avoid the occurrence of noisy collision sounds. When the T-shaped tooth plate 27 moves to the left, it will squeeze the return spring 31 and drive the gear 28 to rotate. The rotation of the gear 28 can drive the T-shaped rotating rod 29 to rotate. When the fixed ball 30 is away from the T-shaped tooth plate 27, the return spring 31 Under the action force, the return spring 31 returns to its initial state, and the return spring 31 will push the T-shaped tooth plate 27 to slide to the right and drive the gear 28 to rotate in the opposite direction. While the gear 28 rotates, it will drive the T-shaped rotating rod 29 to rotate in the opposite direction again. At this time, the T-shaped rotating rod 29 can stir the rainwater in the water storage chamber 14 in the forward and reverse directions, which can improve the fluidity of the rainwater in the water storage chamber 14 and make the temperature of the rainwater in the water storage chamber 14 uniform. At the same time, the cooperation of the gas flow in the leakage hole 16 can effectively improve the uniformity of the rainwater temperature in the water storage chamber 14, thereby improving the overall temperature balance of the top wall of the inner cavity of the top cover body 1, thereby effectively improving the comfortable driving environment in the cab and producing a good driving experience.

[0032] like Figures 1 to 6 As shown, a drain pipe 33 is fixedly installed on one side wall of the top cover body 1 , a valve is installed on the drain pipe 33 , and the drain pipe 33 is connected to the inner cavity of the water storage cavity 14 .

[0033] A shielding frame 13 is slidably mounted on the outer wall of the fixed frame 4 , a threaded rod 12 is rotatably mounted on the top of the fixed frame 4 , and the shielding frame 13 is threadedly connected to the threaded rod 12 .

[0034] The heat insulating layer 18 is made of glass fiber and is used to block the heat generated by the top wall of the top cover body 1 from the water storage chamber 14 .

[0035] When it is necessary to drain the rainwater in the water storage chamber 14, open the valve on the drain pipe 33, and the rainwater in the water storage chamber 14 will be discharged through the drain pipe 33. Before driving the excavator, rotate the threaded rod 12 to drive the shielding frame 13 to move downward, and move the bottom end of the shielding frame 13 to the inner cavity of the arc groove 15. This can avoid the situation in which the wind blows the movable plate 5 to deflect and make knocking sounds during driving, and can avoid the knocking sounds affecting the driver's driving.

[0036] Working principle: first, snap the connecting shell 2 onto the top wall of the outer shell of the excavator cab, and then fix the connecting shell 2 and the outer shell of the cab together with screws. When the driver drives the excavator and parks it outdoors, wind will be generated outdoors at any time and anywhere. When the wind blows on one side of the movable plate 5, it will drive the movable plate 5 to deflect. With the cooperation of the elastic rope 8, the knocking plate 6 will knock on the fixed frame 4 and generate vibration, which can scare the birds that stay on the top cover body 1 and are about to fly on the top of the top cover body 1, and make the birds fly away. When it rains, rainwater will flow through the leakage hole 16 to the water storage chamber 14 for collection. When the rain stops, the vibration can increase the fluidity of the water on the surface of the top cover body 1 and facilitate the rainwater to flow down. Through the cooperation of the heat insulation layer 18 and the rainwater in the water storage chamber 14, when the weather is hot, the temperature rise of the top cover body 1 can be slowed down. When the excavator is driving, the wind blows the fan blades 23 to rotate and blow air into the circulation pipe 19. The gas flow in the circulation pipe 19 can prevent the temperature of rainwater in the water storage chamber 14 from rising. The gas discharged from the circulation pipe 19 will directly act on the filter screen 17 to clear the filter screen 17. When the excavator is tilted during driving, the fixed ball 30 will hit the T-shaped tooth plate 27 and move. With the cooperation of the reset spring 31, the T-shaped rotating rod 29 will be driven to rotate forward and reverse, which can improve the uniformity of the rainwater temperature in the water storage chamber 14. The cooperation with the gas flow in the circulation pipe 19 can maintain the balance of the rainwater temperature in the water storage chamber 14, thereby improving the overall temperature balance of the top wall of the inner cavity of the top cover body 1 and making the environment in the cab comfortable. When the rainwater collected in the water storage chamber 14 needs to be discharged, just open the valve on the drain pipe 33.

[0037] The above are only preferred specific implementations of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and improved concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An excavator cab, comprising a top cover body (1), a connecting shell (2) being fixedly mounted on the bottom of the top cover body (1), the connecting shell (2) being used to be connected to an outer shell of the excavator, Features: Also includes: The driving assembly comprises a support plate (3) uniformly fixedly mounted on the upper part of the top cover body (1), a fixed frame (4) fixedly mounted on the upper part of the support plate (3), a movable plate (5) rotatably mounted on the front wall of the support plate (3), a knocking plate (6) is arranged on both sides of the movable plate (5), two groups of the knocking plates (6) are rotatably mounted on the inner wall of the fixed frame (4), the two groups of the knocking plates (6) are in contact with the inner wall of the fixed frame (4), and the two groups An elastic rope (8) is fixedly installed between the knocking plate (6) and the inner wall of the fixed frame (4), movable rods (9) are rotatably installed on both side walls of the movable plate (5), and sliders (10) are rotatably installed on the other ends of the two groups of movable rods (9). The two groups of sliders (10) are slidably installed with the side walls of the adjacent knocking plates (6), and two groups of blocking plates (11) are fixedly installed on both side walls of the movable plate (5). When the wind blows the movable plate (5) to deflect, knocking sounds are generated.

2. The excavator cab according to claim 1, characterized in that: A water storage cavity (14) is provided in the top cover body (1), and arc grooves (15) matching the movable plate (5) are evenly provided on the upper surface of the top cover body (1), and leakage holes (16) communicating with the water storage cavity (14) are provided on the inner bottom wall of the arc groove (15), and a filter screen (17) is fixedly installed on the inner top wall of each group of leakage holes (16), and a heat insulation layer (18) is provided on the upper side of the water storage cavity (14), and the heat insulation layer (18) is fixedly installed in the top cover body (1).

3. The excavator cab according to claim 2, characterized in that: A vertical plate 1 (20) is fixedly mounted on one side of the upper part of the top cover body (1), a circular tube (21) is fixedly mounted on one side of the vertical plate 1 (20), a vertical plate 2 (22) is arranged on the side of the circular tube (21) away from the vertical plate 1 (20), a fan blade 1 (23) is rotatably mounted on the vertical plate 2 (22), a fan blade 2 (24) is arranged in the circular tube (21), the fan blade 2 (24) is fixedly connected to one end of the fan blade 1 (23), a circulation pipe (19) is fixedly mounted in the inner cavity of the water storage cavity (14), one end of the circulation pipe (19) is fixedly connected to an air intake pipe (25), and the other end of the air intake pipe (25) passes through the top cover body (1) and the vertical plate 1 (20) and is connected to the inside of the circular tube (21).

4. The excavator cab according to claim 3, characterized in that: An exhaust cavity (26) is provided between the water storage cavity (14) and the heat insulation layer (18); the exhaust cavity (26) is opened in the top cover body (1); the other end of the circulation pipe (19) passes through the top cover body (1) and is connected to the exhaust cavity (26); both sides of the exhaust cavity (26) are connected to the inside of each group of the leakage holes (16); and a one-way valve is installed at the connection point between each group of the leakage holes (16) and the exhaust cavity (26).

5. The excavator cab according to claim 2, characterized in that: Cavities (7) are evenly arranged on the lower side of the water storage cavity (14); a T-shaped tooth plate (27) is slidably mounted in the inner cavity of each group of the cavities (7); a return spring (31) is fixedly mounted between one side of the T-shaped tooth plate (27) and the inner cavity wall of the cavity (7); a fixed ball (30) is arranged on the other side of the T-shaped tooth plate (27); and the fixed ball (30) is in contact with the inner cavity bottom wall of the cavity (7).

6. The excavator cab according to claim 5, characterized in that: T-shaped rotating rods (29) are evenly rotatably mounted in the top cover body (1), the top and bottom ends of each group of the T-shaped rotating rods (29) are respectively located in the water storage cavity (14) and the inner cavity of the adjacent cavity (7), and gears (28) are fixedly mounted on the rod wall of each group of the T-shaped rotating rods (29), and each group of the gears (28) is meshed with the adjacent T-shaped toothed plate (27).

7. The excavator cab according to claim 5, characterized in that: Protection pads (32) are provided on both sides of the fixed ball (30), and two groups of the protection pads (32) are respectively fixedly mounted on the inner cavity side walls of the adjacent T-shaped toothed plates (27) and the top cover body (1).

8. The excavator cab according to claim 2, characterized in that: A drainage pipe (33) is fixedly mounted on one side wall of the top cover body (1), a valve is mounted on the drainage pipe (33), and the drainage pipe (33) is in communication with the inner cavity of the water storage cavity (14).

9. The excavator cab according to claim 1, characterized in that: A shielding frame (13) is slidably mounted on the outer wall of the fixed frame (4), a threaded rod (12) is rotatably mounted on the top of the fixed frame (4), and the shielding frame (13) is threadedly connected to the threaded rod (12).

10. The excavator cab according to claim 2, characterized in that: The heat insulation layer (18) is made of glass fiber, and is used to block the heat generated by the top wall of the top cover body (1) from the water storage cavity (14).

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