Cab and heavy truck

Abstract

The invention relates to the technical field of heavy trucks, in particular to a cab and a heavy truck. The cab comprises a cab floor, and a front inclined face is formed between the cab floor and the front wall vertical face of the cab. The drainage channel is located on the side of the cab floor and connected with the cab floor through a flow guide slope, and a plurality of drainage holes are formed in the drainage channel; the drainage folding edge is formed at the joint of the cab floor and the front inclined surface; the water storage cavity is located below the drainage channel, and accumulated water in the drainage channel can flow into the water storage cavity through the drainage holes; the drainage groove is formed in the front inclined face, and a drainage pipe connected with the water storage cavity is arranged at the bottom of the drainage groove. A plurality of parallel drainage paths can be formed through the drainage channels and the water storage cavities, so that the purpose of timely draining accumulated water on the floor of the cab when the cab is in different postures is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of heavy trucks, and in particular to a cab and a heavy truck. Background Art

[0002] For vehicles in muddy and rainy areas, especially in the hot and humid areas in the south, the floor of the cab is often easily stained by a lot of mud underfoot and difficult to wash. Drivers often use frequent water splashing and wiping to keep the cab clean. However, the floor of the cab often does not have a drainage function and retains a lot of water. When splashing and brushing are frequent, a large amount of dirty water accumulates between the floor skin and the floor sheet metal for a long time and is difficult to drain, causing problems such as rusting of the sheet metal and insulation failure of cables due to moisture. Even when the vehicle is going downhill or the cab is turned over for maintenance, the accumulated water rushes forward, causing the front distribution board and electrical components to be damaged by water, and a technical solution is urgently needed.

[0003] However, the existing technology often focuses on draining condensed water from the top of the cab or directing rainwater to the A-pillar through drainage grooves around the outer edge of the cab roof to avoid affecting the line of sight at the glass, but lacks effective circumvention solutions for floor drainage and waterproofing of electrical cables. Summary of the invention

[0004] The object of the present invention is to provide a cab and a heavy truck, which can form multiple parallel drainage paths through drainage channels and water storage chambers. When the cab is flat or tilted backward, the accumulated water can flow into the side drainage channels directly or through the drainage fold to enter the water storage chamber for discharge. When the cab is tilted forward, the accumulated water can be discharged into the water storage chamber through the drainage groove to be discharged, thereby achieving the purpose of timely draining the water accumulated on the floor when the cab is in different postures.

[0005] In order to achieve the above object, the present invention adopts the following technical solution to solve the problem: In a first aspect, the present invention provides a cab, comprising: A cab floor, wherein a front inclined surface is formed between the cab floor and the front wall of the cab; A drainage channel is located at the side of the cab floor and connected to the cab floor through a diversion slope, wherein a plurality of drainage holes are provided in the drainage channel, and the diversion slope is used to guide the accumulated water in the cab to flow into the drainage channel; A drainage fold is provided at the connection between the cab floor and the front inclined surface, and the drainage fold is used to guide the accumulated water in the front of the cab to the side of the cab floor; A water storage chamber is located below the drainage channel, and the accumulated water in the drainage channel can flow into the water storage chamber through the drainage hole; the water storage chamber is provided with a bottom drainage hole for draining the accumulated water out of the cab; A drainage groove is arranged on the front inclined surface close to the front enclosure vertical surface. A drainage pipe connected to the water storage chamber is provided at the bottom of the drainage groove. The drainage groove is used to discharge the accumulated water between the front enclosure vertical surface and the front inclined surface of the cab into the water storage chamber through the drainage pipe when the cab tilts forward.

[0006] Optionally, from the front side to the rear side of the cab, the guide slope includes a front guide slope area, a drainage channel side slope, a middle guide slope area and a rear guide slope area which decrease in sequence.

[0007] Optionally, a filter screen is provided at the drainage hole.

[0008] Optionally, a lower inclined surface is formed in the water storage chamber, and the bottom drainage hole is located at the lower side of the lower inclined surface, and the lower inclined surface is used to guide the accumulated water in the water storage chamber to the bottom drainage hole.

[0009] Optionally, a drainage duckbill is provided at the bottom drainage hole.

[0010] Optionally, a downwardly inclined internal slope is formed at the bottom surface of the water storage chamber, and a bottom water channel is formed between the internal slope and the side wall of the water storage chamber, and the bottom water channel is used to gather the accumulated water in the water storage chamber and lead it to the bottom drainage hole.

[0011] Optionally, a drainage hole is provided at the bottom of the drainage groove, the drainage hole is connected to the drainage pipe, and a filter net is provided at the drainage hole.

[0012] Optionally, when the drain pipe is flipped forward to the extreme position of the cab, the low-position water inlet hole of the drain pipe located in the water storage chamber is higher than the water inlet located at the bottom of the drainage groove.

[0013] Optionally, the drainage fold slopes downward from the middle to both sides.

[0014] In a second aspect, the present invention provides a heavy truck comprising the above-mentioned cab.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention arranges drainage channels and water storage chambers on the side of the cab floor to drain the accumulated water on the cab floor, and can be applied to different cab postures. When the cab is in a flat state, the accumulated water can flow directly or through the drainage fold into the drainage channels on the side and into the water storage chamber, and finally be discharged from the bottom drainage hole. When the cab is in a forward tilted state, the accumulated water accumulates between the front facade and the front inclined surface of the cab and is difficult to be discharged through the drainage channels on the side of the cab floor. The present invention arranges drainage grooves on the front inclined surface to gather the accumulated water and discharge it into the water storage chamber through a drainage pipe, so as to achieve the drainage of the accumulated water in the forward tilted state of the cab. In addition, the plurality of drainage paths in the present invention are connected in parallel with each other, and the plurality of drainage paths can work simultaneously without manual intervention and will not interfere with each other. A progressive low-level drainage scheme is formed by multiple convergences. In addition, the drainage channels and the water storage chamber structures themselves play a role in strengthening the structure of the cab body-in-white. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the cab floor, drainage channel and water storage chamber in Example 1; Figure 2 is a schematic diagram of the structure of the cab floor in Example 1; Figure 3 This is a schematic diagram of the drainage path when the cab is overturned; Figure 4 This is a schematic diagram of drainage when the cab is in a horizontal position; Figure 5 This is a schematic diagram of drainage when the cab is flipped forward.

[0017] Numbers in the figure: 1. bottom drainage hole; 2. lower inclined surface; 3. drainage channel; 4. water storage chamber; 5. cab floor; 6. drainage groove; 7. drainage fold; 8. front diversion slope area; 9. middle diversion slope area; 10. rear diversion slope area; 11. bottom water channel; 12. drainage pipe; 13. low-level water inlet hole; 14. drainage hole; 15. first water level; 16. second water level; 17. third water level; 18. fourth water level; 19. front enclosure facade. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0019] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example 1

[0020] Combination Figure 1 , this embodiment provides a cab, which includes a cab floor 5, a drainage channel 3, a drainage fold 7, a water storage chamber 4, and a drainage groove 6. The drainage channel 3 and the water storage chamber 4 can be arranged on the left side or the right side of the cab. Since the cab does not always remain horizontal during the driving of the vehicle, the cab floor 5 is basically in a horizontal state under normal conditions. For example, when the vehicle goes downhill or the cab is lifted and turned over for maintenance, the cab may be in a slightly low front and high rear state. For example, when the vehicle is in an uphill state, the cab may be in a high front and low rear state. Therefore, this embodiment takes into account the parallel drainage methods in multiple states and makes a series of designs for the cab to ensure that the accumulated water on the cab floor 5 can be effectively discharged under different states.

[0021] Specifically, a front inclined surface is formed between the cab floor 5 and the front wall vertical surface 19 (as a firewall vertical plate) of the cab; the drainage groove 6 is arranged on the front inclined surface; the drainage channel 3 is located on the side of the cab floor 5 and is connected to the cab floor through a diversion slope. From the front side to the rear side of the cab, the diversion slope includes a front diversion slope area 8, a middle diversion slope area 9 and a rear diversion slope area 10 that decrease in sequence; the front accumulated water can enter the drainage channel 3 from the front diversion slope area 8 of the drainage channel; similarly, the accumulated water in the middle area of ​​the floor can flow into the drainage channel 3 through the side inclined edge of the drainage channel 3 near the inner side of the cab and the middle diversion slope area 9. The accumulated water at the rear of the cab can flow into the drainage channel 3 through the rear diversion slope area at the rear of the drainage channel 3. The drainage channel 3 is provided with a plurality of drainage holes; the drainage fold 7 is formed at the connection between the cab floor 5 and the front inclined surface, and the drainage fold 7 is inclined downward from the middle to both sides to guide the accumulated water to the sides.

[0022] The water storage chamber 4 is located below the drainage channel 3, and the accumulated water in the drainage channel 3 can flow into the water storage chamber 4 through the drainage hole. The bottom of the drainage groove 6 is also provided with a drainage pipe 12 connected to the water storage chamber 4. The front side of the water storage chamber 4 forms a lower inclined surface 2 and a bottom drainage hole 1 located below the lower inclined surface 2. The lower inclined surface 2 is used to guide the accumulated water in the water storage chamber 4 to the bottom drainage hole 1. A drainage duckbill is provided at the bottom drainage hole.

[0023] In this embodiment, a structural cavity at the step below the drainage channel 3 is designed as a water storage chamber 4, which can not only strengthen the structural strength of the cab floor 5 and the edge of the step, but also form a closed accommodating cavity as the water storage chamber 4 for draining the accumulated water. Because the accumulated water in the gap between the cab floor 5 and the floor skin needs to be drained as soon as possible, a water storage chamber 4 with a certain volume is required to accommodate all the accumulated water discharged from between the floor and the floor skin as soon as possible, which is also the necessity of setting the water storage chamber 4. All the accumulated water that enters the water storage chamber 4, no matter how much water there is or how much water is left, can be gathered to the lowest position of the front drainage duckbill through the lower inclined surface 2 at the bottom of the water storage chamber 4, thereby ensuring that no matter what tilt state the vehicle cab is in (horizontal state, low front and high back, high front and low back), the accumulated water in the water storage chamber will not flow back. The less water is stored, the better the gathering effect and anti-backflow effect. Even if a small amount of backflow occurs, during the long-term driving of the vehicle and the change of the cab's bumpy and tilted state, the returned accumulated water will always be quickly guided back to the drainage duckbill at the low drainage position, which is conducive to the rapid and effective drainage of the accumulated water retained in the water storage chamber, and no water will be stored for a long time. The upper part of the drainage duckbill is connected to the bottom drainage hole 1 of the water storage chamber, and has a large opening and volume, which can further play the role of gathering and storing water and silt accumulation for a small amount of accumulated water below the lowest liquid level of the water storage chamber 4 (below the lowest point of the lower surface of the sheet metal), and the drainage duckbill end is a drainage and dustproof gap. If there is water, the gap will be stretched open and flow out. If there is less water, it will be sealed to drip water, and if there is no water, it will be sealed to prevent dust. It can prevent the invasion of the external dust environment on the cab, and play a good dustproof role in addition to the drainage effect. However, the drainage duckbill has a slow drainage speed and requires a certain space to temporarily store the accumulated water discharged from the top, which is also the demand of the water storage chamber 4. The drainage duckbill is located in the front and outer part of the cab, in front of the tire. There are no key components and appearance structures below the downward drainage dripping water. It is basically a suspended space that can be directly discharged to the ground, which will not contaminate the body beam and all vehicle functions and appearance structures, and avoid the disadvantages of dust and dust that will produce a lot of mud and dirt that affect the function or aesthetics. This is another design requirement for the water storage chamber.

[0024] To explain one by one, the present embodiment designs a concave drainage channel 3 at the threshold edge of the cab floor 5, which can guide, gather and contain the water accumulated between the sheet metal floor and the floor skin, and provides multiple drainage holes at intervals at the bottom of the drainage channel 3. The drainage holes are arranged in the front, middle and rear areas, so that the accumulated water gathered in various places can be quickly drained through at least one drainage hole in a horizontal state and various slightly inclined working conditions. A water-resistant filter mesh is embedded in the drainage hole to filter and block the sediment deposited by erosion to prevent it from infiltrating. The more drainage holes there are and the larger their diameters, the faster the accumulated water will be discharged to the next space. See Figure 1 .

[0025] When the cab floor 5 is basically in a horizontal state, the drainage channel 3 quickly collects and accommodates the accumulated water on the entire floor, and after the mud and sand are blocked by the filter net installed in the several drainage holes at the bottom of the drainage channel 3, the accumulated water enters the water storage chamber 4 below. When the cab is in a state where the front is slightly lower and the rear is higher, or the vehicle is going downhill or the cab is lifted and turned over for maintenance, and when there are bumps and slight rolls, more of the accumulated water flows into the drainage channel through the front diversion slope area 8, the complete side bevel of the drainage channel near the inner side of the cab, the middle diversion slope area 9 of the drainage channel, and the inclined side of the drainage channel. In addition, when the cab is in a state where the front is slightly lower and the rear is higher, the front inclined surface of the cab floor 5 forms a water retaining wall effect, and the water is gathered to the side through the drainage fold 7, and flows into the drainage channel 3 through the front diversion slope 8 area, see Figure 2 When the cab is in a state where the front is slightly higher and the rear is lower, or when the vehicle is going uphill, more accumulated water flows into the drainage channel through the middle diversion slope area 9 and the rear diversion slope area 10.

[0026] In addition, the bottom of the water storage chamber 4 in the present embodiment is not a plane, but is designed to be an S-shaped inclined surface 11 with one side higher than the other side, and the structural strength of the bottom plate of the water storage chamber is improved. The S-shaped inclined surface 11 of the bottom surface of the water storage chamber 4 includes an inner inclined surface inclined downward, and a bottom water channel 11 is formed between the inner inclined surface and the side wall of the water storage chamber. The bottom water channel 11 can gather the accumulated water in the water storage chamber 4 again and lead it to the bottom drainage hole 1. And the bottom water channel 11 here has the function of raising the water level and increasing the flow rate, preventing the mud powder in the state of suspension from being easily deposited and difficult to clean under the conditions of low flow rate and low liquid level on a large plane when the amount of water is small. The cross-section of the bottom water channel 11 is narrow, and the water level is easy to rise. The gathered water flow is easy to stir the mud in the bumpy and tilted state to prevent rapid sedimentation and quickly discharge it to the low-position drainage duckbill with the water flow, thereby minimizing the widespread sedimentation of mud in the entire water storage chamber during normal drainage. This is another requirement of the water storage chamber 4. Figure 3 .

[0027] Furthermore, when the cab flips over obviously (overly tilted forward), the accumulated water will not touch the cab floor 5 in a large area, and will not gather through the drainage fold 7. It cannot flow into the drainage channel 3 due to the height difference, and cannot enter the water storage chamber 4 through the drainage hole and the filter screen. At this time, the water accumulates between the front enclosure facade 19 of the cab and the front inclined surface of the cab floor. At this time, it will cause immersion short circuit and corrosion effects on the front enclosure electrical equipment and structural equipment, and a drainage solution is also required. In this embodiment, a drainage groove 6 is designed at the front inclined surface close to the front enclosure facade of the cab, which plays a role in low-level water flow convergence, and a drainage port and a filter screen are designed at the bottom of the drainage groove 6. The bottom of the drainage groove 6 is also provided with a drainage pipe 12 connected to the water storage chamber. When the drainage pipe 12 flips forward to the extreme position of the cab, the low-level water inlet 13 of the drainage pipe 12 located in the water storage chamber is higher than the drainage port at the bottom of the drainage groove 6. Therefore, the drainage pipe 12 has the effect that when the cab is overturned, the low-position water inlet hole 13 connected to the water storage chamber is at a low position and the front inclined surface of the floor is at a high position, so that the accumulated water is guided to flow smoothly into the water storage chamber 4 in the case of excessive overturning, forming a drainage path in an excessively inclined state of low front and high rear when the cab is overturned for maintenance. Figure 4 The accumulated water that has not been discharged in time and completely due to excessive forward tilting and turning will enter the drainage channel 3 again through the drainage fold 7 and the diversion slope in front of the drainage channel 3 when the cab is flattened or the vehicle turns to a horizontal road, playing a role of repeated guidance for the flow to converge again.

[0028] In summary, the working principle of the cab of this embodiment is summarized as follows: the drainage path of the cab in the horizontal state is: the cab floor surface 5-diversion slope-drainage channel 3-water storage chamber 4-low position of the water channel at the bottom of the water storage chamber-low position of the lower inclined surface of the front part of the water storage chamber-low position of the drainage duckbill. The first water level 15 of the drainage channel in the cab in the horizontal state is shown in Figure 4, and the second water level 16 of the drainage duckbill in the cab in the horizontal state is shown in Figure 5. Figure 4 The drainage path when the cab is tilted forward excessively is: the drainage groove 6 on the front inclined surface of the cab floor when the cab is tilted forward excessively - the downward inclination of the drainage pipe 12 - the drainage pipe connected to the low water inlet 13 of the water storage chamber - the water storage chamber - the low position of the lower inclined surface of the front part of the water storage chamber - the low position of the drainage duckbill, which is a 6-layer progressive low position relationship. The third water level 17 of the cab floor when the cab is tilted forward excessively is shown in FIG. Figure 5 , the fourth water level 18 at the lower position of the water storage chamber when the cab is tilted forward excessively is seen Figure 5. The drainage path when the cab is tilted backward is: cab floor surface 5-middle diversion slope area and rear diversion slope area-drainage channel 3-water storage chamber 4-low position of the bottom channel of the water storage chamber-low position of the lower inclined surface of the front of the water storage chamber-low position of the drainage duckbill, a 7-layer progressive relationship. It can be understood that in this embodiment, the drainage folded edge 7, the low position of the front inclined surface 6, the intersection of the front enclosure facade and the front inclined surface, the diversion slopes at the front, middle and rear of the drainage channel, the drainage channel, the bottom channel of the water storage chamber, the low position of the lower inclined surface 2 at the front of the water storage chamber, and the low position of the drainage duckbill have a total of 8 structural convergence effects.

[0029] In addition, for mud and sand cleaning, the mud and sand will be filtered out by the filter screens at the drainage groove 6 and the drainage holes 14 at the bottom of the drainage channel to remove larger particles, and accumulate in the drainage channel 3 and the front inclined surface of the cab floor, the drainage fold 7 and the junction of the front facade of the cab and the front inclined surface, and multiple filter screens. They can be cleaned and removed together when cleaning is needed. Because the filter screen is a waterproof material, the mud and sand on the filter screen can be directly removed and cleaned after the filter screen is removed. The finer dust that cannot pass through the filtration and blocking of the filter screen penetrates into the water storage chamber 4 in a suspended liquid state, most of which is discharged with the water flow, and a few are retained at the bottom of the water storage chamber 4, the bottom of the drainage channel 3, the low position of the front of the water storage chamber 4 and the drainage duckbill. The drainage duckbill can be removed and cleaned, and the inside of the water storage chamber 4 can be flushed inwardly with a high-pressure water pipe from the multiple drainage holes of the drainage channel 3 to fill up the accumulated mud powder and flow out with the water through the large drainage opening of the duckbill after it is removed. And thanks to the reasonable drainage position of the drainage duckbill, the bottom structure of the cab will not be contaminated with dirt throughout the process. The cleaning process is convenient and thorough. This is another requirement for the water storage chamber. Example 2

[0030] Based on the same inventive concept as in Example 1, this embodiment provides a heavy-duty truck, including the cab described in Example 1.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A cab, characterized in that: include: A cab floor (5), wherein a front inclined surface is formed between the cab floor (5) and a front enclosure vertical surface (19) of the cab; A drainage channel (3) is located on the side of the cab floor (5) and is connected to the cab floor (5) via a diversion slope, the diversion slope is used to guide the accumulated water in the cab to flow into the drainage channel (3), and a plurality of drainage holes (14) are provided in the drainage channel (3); A drainage fold (7) is provided at the connection between the cab floor (5) and the front inclined surface, and the drainage fold (7) is used to guide the accumulated water in the cab to the side of the cab floor (5); A water storage chamber (4) is located below the drainage channel (3), and the accumulated water in the drainage channel (3) can flow into the water storage chamber (4) through the drainage hole (14); a bottom drainage hole (1) is provided in the water storage chamber (4) for draining the accumulated water out of the cab; A drainage groove (6) is provided on the front inclined surface near the front enclosure vertical surface (19), and a drainage pipe (12) connected to the water storage chamber (4) is provided at the bottom of the drainage groove (6); the drainage groove (6) is used to drain the accumulated water between the front enclosure vertical surface (19) and the front inclined surface of the cab into the water storage chamber (4) through the drainage pipe (12) when the cab is tilted forward.

2. The cab according to claim 1, characterized in that: From the front side to the rear side of the cab, the diversion slope comprises a front diversion slope area (8), a side slope of the drainage channel (3), a middle diversion slope area (9) and a rear diversion slope area (10) which decrease in sequence.

3. The cab according to claim 1, characterized in that: A filter screen is provided at the drainage hole (14).

4. The cab according to claim 1, characterized in that: A lower inclined surface (2) is formed in the water storage chamber (4), the bottom drainage hole (1) is located below the lower inclined surface (2), and the lower inclined surface (2) is used to guide the accumulated water in the water storage chamber (4) to the bottom drainage hole (1).

5. The cab according to claim 4, characterized in that: A drainage duckbill is provided at the bottom drainage hole (1).

6. The cab according to claim 4, characterized in that: The bottom surface of the water storage chamber (4) forms an internal inclined surface that slopes downward, and a bottom water channel (11) is formed between the internal inclined surface and the side wall of the water storage chamber (4). The bottom water channel (11) is used to gather the accumulated water in the water storage chamber (4) and guide it to the bottom drainage hole (1).

7. The cab according to claim 1, characterized in that: A drainage outlet is provided at the bottom of the drainage groove (6), the drainage outlet is connected to the drainage pipe (12), and a filter screen is provided at the drainage outlet.

8. The cab according to claim 1, characterized in that: When the drainage pipe (12) is tilted forward to the extreme position when the cab is turned over, the low-position water inlet hole (13) of the drainage pipe (12) in the water storage chamber (4) is higher than the drainage outlet at the bottom of the drainage groove (6).

9. The cab according to claim 1, characterized in that: The drainage fold (7) slopes downward from the middle to both sides.

10. A heavy truck, characterized in that: Comprising the cab described in any one of claims 1-9.

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