Waterproof sheet metal hood structure for engineering machinery

Abstract

The utility model provides a waterproof sheet metal hood structure for engineering machinery. The waterproof sheet metal hood structure comprises a hood framework, side doors mounted on two sides of the hood framework, a small top door, a large top door and a fixedly arranged exhaust pipe baffle, a mounting cross beam is arranged in the middle of the hood framework, the two sides of the mounting cross beam and the hood framework form a first mounting area and a second mounting area which are both inclined towards the front portion of a vehicle, and the inner sides of the edges of the first mounting area and the second mounting area are each provided with a communicated U-shaped first drainage groove. A water outlet communicated with the first water drainage groove is formed in the position, close to the front portion of the vehicle, of the hood framework. The first drainage grooves corresponding to the large top door and the small top door in position are formed in the inner side of the hood framework, the hood framework is integrally inclined towards the front portion of a vehicle, water flows into the first drainage grooves from the edges of the large top door and the small top door, accumulated water is drained through the drainage openings, and rainwater cannot leak into a cabin; the bending part of the drainage channel is good in leakproofness, and drainage performance is guaranteed.

Description

Technical Field

[0001] The utility model relates to a waterproof sheet metal hood structure for construction machinery, belonging to the technical field of construction machinery. Background Art

[0002] Construction machinery is an important part of China's equipment industry, referring to the mechanical equipment necessary for comprehensive mechanized construction projects such as earthwork construction projects, road surface construction and maintenance, mobile lifting and loading operations, and various building projects. These equipments are widely used in fields such as national defense construction projects, transportation construction, energy industry construction and production, mining raw material industry construction and production, agriculture and forestry water conservancy construction, industrial and civil construction, urban construction and environmental protection.

[0003] Construction machinery is large in volume and has a poor application environment. It works and parks outdoors and will inevitably be washed by rain. However, in the current construction machinery industry, the waterproofness of the hood covering parts is usually inversely proportional to manufacturability, maintainability, and cost. The current market usually adopts a rough structure that sacrifices waterproofness in exchange for manufacturability, maintainability, and cost. However, there are electrical components such as batteries inside the hood. Severe long-term water leakage may lead to electrical failures and safety hazards.

[0004] Therefore, there is an urgent need for a hood structure with good drainage function to provide a dry working environment as much as possible inside the hood to ensure equipment safety and working stability. Summary of the Invention

[0005] Object of the Invention: Aiming at the deficiencies in the prior art, the utility model provides a waterproof sheet metal hood structure for construction machinery. By setting multiple waterproof structures, through water isolation and drainage, it avoids water flow from leaking into the engine compartment, ensures the dryness of the internal working device, improves the service life, and the stable operation of the working device.

[0006] Technical Solution: A waterproof sheet metal hood structure for construction machinery includes a hood skeleton, side doors installed on both sides of the hood skeleton, a small top door, a large top door that can be turned over and opened on the upper side of the hood skeleton, and a fixed exhaust pipe baffle. The exhaust pipe passes through a through hole opened on the exhaust pipe baffle and extends upward;

[0007] An installation cross beam is arranged in the middle of the hood skeleton. The hood skeleton is bent along the position of the installation cross beam to form an inverted V structure. Both sides of the installation cross beam and the hood skeleton form a first installation area and a second installation area that both incline towards the front of the vehicle. U-shaped first drainage grooves that are connected are arranged on the inner sides of the edges of the first installation area and the second installation area. A drainage port that is connected to the first drainage groove is arranged on the hood skeleton near the front of the vehicle.

[0008] The utility model arranges a first drainage groove corresponding to the positions of the large top door and the small top door on the inner side of the hood frame, and the hood frame is tilted toward the front of the vehicle as a whole. When it rains, water flows from the edges of the large top door and the small top door to the first drainage groove, and then gathers to the drainage port through the action of gravity. The accumulated water is discharged through the drainage port, and rainwater will not leak into the interior of the cabin. In addition, the U-shaped first drainage groove adopts a bending and welding manufacturing process, and has good airtightness, thereby ensuring drainage performance.

[0009] Drainage gaps are provided at the connection between the lower side of both ends of the mounting cross beam and the first drainage groove, and the upper side is fixedly connected to the hood frame.

[0010] Through the design of the drainage gap, the first drainage grooves of the first installation area and the second installation area can be effectively connected, so that water flows are gathered and concentrated at the drainage outlet for discharge; the upper side is fixed as a whole with the hood frame, which can avoid excessive rainwater from flowing into the drainage groove as much as possible, increasing the working pressure of the drainage system.

[0011] A waterproof layer is arranged near the inner side of the first drainage groove, and a sealing strip is arranged at the connection between the waterproof layer and the bottom of the first drainage groove, and the sealing strip is in extrusion contact with the first drainage groove.

[0012] By setting a waterproof layer on the inner side of the first drainage groove and sealing it with a sealing strip, the water flowing and gathering at the edges of the large top door and the small top door flows into the space between the outer side of the waterproof layer and the first drainage groove, and continues to converge to the drain port for drainage, thereby ensuring the dryness of the inside of the hood and avoiding the influence of water flow as much as possible.

[0013] The exhaust pipe baffle and the small top door are respectively installed on the left and right sides of the second installation area. The exhaust pipe baffle is provided with a second drainage groove on the side close to the small top door. The second drainage groove is connected to the first drainage groove, and a sealing strip is provided on the inner side of the second drainage groove.

[0014] Since the exhaust pipe baffle and the small top door are two independent components, there is a gap at the connection, so a second drainage groove is set at the connection, and a sealing strip is set to ensure airtightness; at the connection point where the second drainage groove and the first drainage groove are connected, in order to ensure smooth flow, no sealing strip is set here.

[0015] The edges of the large top door and the small top door close to the mounting beam are hinged to the mounting beam, the edges of the large top door and the small top door correspond to the positions of the first drainage groove, and are bent downward and fixedly connected to the sealing strip as a whole, and the sealing strip changes its contact state with the first drainage groove as the large top door and the small top door are opened and closed.

[0016] The sealing strip is integrated with the large top door and the small top door. According to the actual situation, when the large top door and the small top door are opened, the probability of being in a non-rainy state is greater. Maintenance is generally carried out indoors or when the weather is good. At this time, opening the large top door or the small top door to drive the sealing strip to break away from the drainage groove does not affect the dryness inside the engine compartment. When the large top door and the small top door are closed, the sealing strip contacts and squeezes the drainage groove, fits tightly with the drainage groove to achieve sealing, further realizes the water isolation function, and ensures that the environment inside the engine compartment remains dry.

[0017] P-type sealing strips are provided at the corresponding positions on both sides of the hood skeleton and the upper edge of the side door. When the side door is closed, the P-type sealing strip is deformed by the extrusion of the side door and fits tightly with the side door.

[0018] By setting the P-type sealing strip, when the side door is closed, the top edge of the side door squeezes the P-type sealing strip, and the P-type sealing strip deforms and fits tightly with the top of the side door. When water flows through, it flows from the upper edge of the P-type sealing strip to the side edge of the hood and then to the ground, without affecting the environment inside the hood, keeping the engine compartment dry, ensuring the normal operation of the working device, and its service life.

[0019] An exhaust pipe cover is provided at the through hole opened on the exhaust pipe baffle. The exhaust pipe cover is in the same direction as the exhaust pipe. A heat-resistant gasket is provided at the connection between the exhaust pipe cover and the exhaust pipe baffle, and the heat-resistant gasket is provided on the upper side of the exhaust pipe baffle.

[0020] The exhaust pipe cover completely covers the exhaust pipe. At the same time, the contact opening between the exhaust pipe cover and the exhaust pipe baffle is set to be relatively large. And through the isolation of the heat-resistant gasket, not only can the heat dissipation efficiency be ensured, but also when water flows through, the heat-resistant gasket and the exhaust pipe cover can effectively isolate the rainwater at the connection and above. The water flows into the second drainage groove and the first drainage groove near the front, and then is discharged through the drainage port, ensuring that the position where the exhaust pipe extends does not leak water and affect the environment inside the engine compartment.

[0021] Both the large top door and the small top door are hingedly connected to the upper side of the installation cross beam through hinge hinges.

[0022] The external connection method reduces the openings in the installation cross beam, reduces the probability of rainwater leakage, and further enhances the waterproof and water isolation ability.

[0023] Beneficial effects: By setting the first drainage groove corresponding to the positions of the large top door and the small top door inside the hood skeleton in the present utility model, and setting the overall inclination of the hood skeleton towards the front of the vehicle, when there is rain, the water flows from the edges of the large top door and the small top door to the first drainage groove, and then is gathered at the drainage port through the action of gravity, and the accumulated water is discharged through the drainage port, and the rainwater will not leak into the engine compartment;

[0024] The sealing strip is integrated with the large top door and the small top door. According to the actual situation, when the large top door and the small top door are opened, the probability of non-rainy weather is higher. Maintenance is generally carried out indoors or when the weather is good. At this time, opening the large top door or the small top door to drive the sealing strip to disengage from the drainage trough does not affect the dryness inside the engine compartment. When the large top door and the small top door are closed, the sealing strip contacts and presses against the drainage trough, tightly fitting with the drainage trough to achieve sealing, further realizing the water-proof function, and ensuring that the environment inside the engine compartment remains dry. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0026] Figure 1 It is the overall structure diagram of the present invention.

[0027] Figure 2 It is the exploded view of the present invention.

[0028] Figure 3 It is the installation structure diagram of the water-proof layer and the sealing strip of the present invention.

[0029] Figure 4 It is the connection diagram of both ends of the installation cross beam of the present invention with the first drainage trough and the engine cover skeleton.

[0030] Figure 5 It is the structure diagram of the drainage trough of the present invention.

[0031] Figure 6 It is the sectional schematic diagram of the integral installation of the sealing strip and the large top door of the present invention.

[0032] Figure 7 It is the sectional schematic diagram of the installation structure of the P-shaped sealing strip and the side door of the present invention.

[0033] Figure 8 It is the installation structure diagram of the P-shaped sealing strip of the present invention.

[0034] Figure 9 It is the installation structure diagram of the exhaust pipe cover of the present invention. Detailed Embodiment

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0036] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation of the present utility model.

[0037] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0038] As Figures 1 to 5 shown, a waterproof sheet metal hood structure for construction machinery includes a hood skeleton 1, side doors 2 installed on both sides of the hood skeleton 1, a small top door 3 that can be turned over and opened on the upper side of the hood skeleton 1, a large top door 4, and a fixed exhaust pipe baffle 5. The exhaust pipe passes through a through hole opened in the exhaust pipe baffle 5 and extends upward;

[0039] An installation cross beam 6 is provided in the middle of the hood skeleton 1. The hood skeleton 1 is bent along the position of the installation cross beam 6 to form an inverted V structure. Both sides of the installation cross beam 6 and the hood skeleton 1 form a first installation area 7 and a second installation area 8 that are both inclined towards the front of the vehicle. The inner sides of the edges of the first installation area 7 and the second installation area 8 are both provided with a connected U-shaped first drainage groove 11. The hood skeleton 1 is provided with a drainage port 12 near the front of the vehicle and communicating with the first drainage groove 11.

[0040] The utility model sets a first drainage groove 11 corresponding to the positions of the large top door 4 and the small top door 3 on the inner side of the hood frame 1, and the hood frame 1 is tilted toward the front of the vehicle as a whole. When it rains, water flows from the edges of the large top door 4 and the small top door 3 to the first drainage groove 11, and then gathers to the drainage port 12 through the action of gravity. The accumulated water is discharged through the drainage port 12, and the rainwater will not leak into the interior of the cabin. In addition, the U-shaped first drainage groove 11 adopts the bending and welding manufacturing process, and has good airtightness, thereby ensuring the drainage performance.

[0041] like Figure 4 As shown, drainage notches 61 are provided at the connection between the lower side of both ends of the mounting cross beam 6 and the first drainage groove, and the upper side is fixedly connected to the hood frame 1 .

[0042] Through the design of the drainage gap 61, it can be achieved that the first drainage grooves 11 of the first installation area 7 and the second installation area 8 can be effectively connected, so that water flows are gathered and concentrated at the drainage port 12 for discharge; the upper side is fixed as a whole with the hood frame 1, which can avoid excessive rainwater from flowing into the first drainage groove 11 as much as possible, thereby increasing the working pressure of the drainage system.

[0043] A waterproof layer 13 is disposed near the inner side of the first drainage groove 11 , and a sealing strip 14 is disposed at the connection between the waterproof layer 13 and the bottom of the first drainage groove 11 . The sealing strip 14 is in extrusion contact with the first drainage groove 11 .

[0044] By setting a waterproof layer 13 on the inner side of the first drainage groove 11 and achieving sealing through a sealing strip 14, the water flowing and gathering at the edges of the large top door 4 and the small top door 3 flows into the space between the outer side of the waterproof layer 13 and the first drainage groove 11, and continues to converge to the drain port 12 for drainage, thereby ensuring the dryness of the inside of the hood and avoiding the influence of water flow as much as possible.

[0045] The exhaust pipe baffle 5 and the small top door 3 are respectively installed on the left and right sides of the second installation area 8. The exhaust pipe baffle 5 is provided with a second drainage groove 15 on the side close to the small top door 3. The second drainage groove 15 is connected to the first drainage groove 11. A sealing strip 14 is provided on the inner side of the second drainage groove 15.

[0046] Since the exhaust pipe baffle 5 and the small top door 3 are two independent components, there is a gap at the connection, so a second drainage groove 15 is set at the connection, and a sealing strip 14 is set to ensure airtightness; at the connection between the second drainage groove 15 and the first drainage groove 11, in order to ensure smooth flow, no sealing strip 14 is set here.

[0047] like Figure 5As shown, the edges of the large top door 4 and the small top door 3 close to the mounting beam 6 are hinged to the mounting beam 6, the edges of the large top door 4 and the small top door 3 correspond to the positions of the first drainage groove 11, and are bent downward and fixedly connected to the sealing strip 14 as a whole, and the sealing strip 14 changes its contact state with the first drainage groove 11 as the large top door 4 and the small top door 3 are opened and closed.

[0048] The sealing strip 14 is integrated with the large top door 4 and the small top door 3. According to actual conditions, when the large top door 4 and the small top door 3 are opened, the probability of being in a non-rainwater state is higher. Maintenance is generally carried out indoors or in good weather. At this time, opening the large top door 4 or the small top door 3 to drive the sealing strip 14 out of the drain groove does not affect the dryness inside the cabin. When the large top door 4 and the small top door 3 are closed, the sealing strip 14 is in contact and squeezed with the drain groove, and fits tightly with the drain groove to achieve sealing, thereby further realizing the water isolation function and ensuring that the environment in the cabin remains dry.

[0049] like Figure 7 and 8 As shown, P-type sealing strips 16 are provided at corresponding positions on both sides of the hood frame 1 and at the upper edges of the side doors 2 . When the side doors 2 are closed, the P-type sealing strips 16 are squeezed and deformed by the side doors 2 and fit tightly with the side doors 2 .

[0050] By setting the P-type sealing strip 16, when the side door 2 is closed, the top edge of the side door 2 is squeezed against the P-type sealing strip 16, and the P-type sealing strip 16 is deformed and fits tightly against the top of the side door 2. When water flows through, it flows from the upper edge of the P-type sealing strip 16 to the side edge of the hood and finally flows to the ground, which will not affect the environment inside the hood, keeps the cabin dry, and ensures the normal operation and service life of the working device.

[0051] like Figure 9 As shown, an exhaust pipe cover 10 is provided at the through hole opened on the exhaust pipe baffle 5. The exhaust pipe cover 10 is consistent with the direction of the exhaust pipe. A heat-resistant rubber pad 101 is provided at the connection between the exhaust pipe cover 10 and the exhaust pipe baffle 5. The heat-resistant rubber pad 101 is arranged on the upper side of the exhaust pipe baffle 5.

[0052] The exhaust pipe cover 10 completely covers the exhaust pipe, and at the same time, the contact opening between the exhaust pipe cover 10 and the exhaust pipe baffle 5 is set to be relatively large, and the heat-resistant rubber pad 101 is used for isolation, which can ensure the efficiency of heat dissipation. At the same time, when water passes through, the heat-resistant rubber pad 101 and the exhaust pipe cover 10 can effectively isolate the connection and the rainwater above respectively. The water flows into the second drainage groove 15 and the first drainage groove 11 near the front, and then is discharged through the drainage port 12 to ensure that the exhaust pipe extension position will not leak water and affect the environment inside the cabin.

[0053] Both the large top door 4 and the small top door 3 are hingedly connected to the upper side of the mounting cross beam 6 through hinge hinges 17.

[0054] The external connection method reduces the opening of the mounting cross beam 6 and the probability of rainwater leakage, further enhancing the waterproof and water isolation capabilities.

[0055] In this specification, each embodiment is described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same or similar parts among the embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For the relevant parts, reference can be made to the description in the method section.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A waterproof sheet metal hood structure for engineering machinery, comprising a hood frame (1), side doors (2) mounted on both sides of the hood frame (1), a small top door (3) arranged on the upper side of the hood frame (1) and capable of being flipped open, a large top door (4), and a fixed exhaust pipe baffle (5), wherein the exhaust pipe extends upward through a through hole provided on the exhaust pipe baffle (5); Features: A mounting crossbeam (6) is arranged in the middle of the hood frame (1), and the hood frame (1) is bent along the mounting crossbeam (6) to form an inverted V structure. The mounting crossbeam (6) and the hood frame (1) form a first mounting area (7) and a second mounting area (8) on both sides thereof, both of which are inclined toward the front of the vehicle. The first mounting area (7) and the second mounting area (8) are provided with a connected U-shaped first drainage groove (11) on the inner side of the edge, and a drainage port (12) connected to the first drainage groove (11) is provided on the hood frame (1) near the front of the vehicle.

2. The waterproof sheet metal hood structure for construction machinery according to claim 1, characterized in that: Drainage notches (61) are provided at the connection between the lower side of both ends of the mounting crossbeam (6) and the first drainage groove, and the upper side is fixedly connected to the hood frame (1).

3. The waterproof sheet metal hood structure for construction machinery according to claim 1, characterized in that: A waterproof layer (13) is provided near the inner side of the first drainage groove (11), a sealing strip (14) is provided at the connection between the waterproof layer (13) and the bottom of the first drainage groove (11), and the sealing strip (14) is in extrusion contact with the first drainage groove (11).

4. The waterproof sheet metal hood structure for construction machinery according to claim 1, characterized in that: The exhaust pipe baffle (5) and the small top door (3) are respectively installed on the left and right sides of the second installation area (8); a second drainage groove (15) is provided on the side of the exhaust pipe baffle (5) close to the small top door (3); the second drainage groove (15) is connected to the first drainage groove (11); and a sealing strip (14) is provided inside the second drainage groove (15).

5. The waterproof sheet metal hood structure for construction machinery according to any one of claims 1 to 4, characterized in that: The edges of the large top door (4) and the small top door (3) on the side close to the mounting cross beam (6) are hinged to the mounting cross beam (6); the edges of the large top door (4) and the small top door (3) correspond to the positions of the first drainage groove (11), and are bent downwards and fixedly connected to the sealing strip (14) as a whole; the sealing strip (14) changes its contact state with the first drainage groove (11) as the large top door (4) and the small top door (3) are opened and closed.

6. The waterproof sheet metal hood structure for construction machinery according to claim 1, characterized in that: P-type sealing strips (16) are provided at positions corresponding to the upper edges of the side doors (2) on both sides of the hood frame (1); when the side doors (2) are closed, the P-type sealing strips (16) are squeezed and deformed by the side doors (2) and fit tightly with the side doors (2).

7. The waterproof sheet metal hood structure for construction machinery according to claim 1, characterized in that: An exhaust pipe cover (10) is provided at the through hole opened on the exhaust pipe baffle (5); the exhaust pipe cover (10) is in the same direction as the exhaust pipe; a heat-resistant rubber pad (101) is provided at the connection between the exhaust pipe cover (10) and the exhaust pipe baffle (5); the heat-resistant rubber pad (101) is provided on the upper side of the exhaust pipe baffle (5).

8. The waterproof sheet metal hood structure for construction machinery according to claim 5, characterized in that: The large top door (4) and the small top door (3) are both hingedly connected to the upper side of the mounting crossbeam (6) via hinges (17).

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