Multifunctional hydraulic oil tank and articulated dump truck

Abstract

The utility model discloses a multifunctional hydraulic oil tank and articulated dump truck, multifunctional hydraulic oil tank is arranged in the side portion of front car, including hydraulic oil tank system, integrated deck and safety protection system, the hydraulic oil tank system includes the oil tank casing, and the function of hydraulic oil tank system is to realize the filling and storage of hydraulic oil of vehicle lifting system, brake system, integrated deck includes deck casing, and deck casing is assembled on the frame of front car, and the function of integrated deck is as the walkway and provides the support for personnel to enter and exit the cab, the hydraulic oil tank system is arranged in the deck casing, realizes the protection and heat insulation to hydraulic oil tank system, and safety protection system is installed on integrated deck, and safety protection system includes guardrail and pedal, the utility model discloses the hydraulic oil tank is arranged in the left side of front car, is located in the inside integrated deck and can realize multiple functions of hydraulic oil tank, deck and protection simultaneously, can avoid being hit by rockfall, and is convenient for maintenance operation.

Description

Technical Field

[0001] This utility model relates to a multifunctional hydraulic oil tank, belonging to the technical field of articulated dump trucks. Background Technology

[0002] like Figure 1 As shown, in the existing articulated dump truck design, the hydraulic oil tank 2 and the left front deck 1 are independent structures. The hydraulic oil tank 2 is located between the cab and the cargo box, and is too close to the ladder. The left front deck 1 is located on the left side of the cab. A level gauge is installed on the hydraulic oil tank 2.

[0003] However, existing hydraulic oil tanks have the following shortcomings:

[0004] 1. The hydraulic oil tank is located behind the cab, where there are many components and the space is relatively cramped.

[0005] 2. The hydraulic oil tank is located below the cargo box. During loading and unloading, it is easily hit by falling materials from the cargo box, posing a safety hazard.

[0006] 3. The layout of hydraulic system pipelines needs to avoid various components, making it relatively difficult. The working environment of articulated dump trucks is quite complex. When hydraulic tank failure or oil leakage occurs, it is not only inconvenient to troubleshoot and repair, but also poses a significant risk of contamination to nearby components.

[0007] 4. The hydraulic oil level gauge is located high on the hydraulic oil tank, making it impossible to observe the oil level from the ground. It requires the use of a platform or other means to observe the oil level, which is inconvenient for adding hydraulic oil and for directly observing the real-time oil level.

[0008] 5. The hydraulic system generates a lot of heat during operation, which causes the hydraulic oil temperature to rise, resulting in the surface of the hydraulic oil tank becoming very hot. If the hydraulic oil tank is exposed to the working environment, it will pose a risk of burns to nearby operators. Summary of the Invention

[0009] To address the shortcomings of existing technologies, this utility model provides a multifunctional hydraulic oil tank. The hydraulic oil tank is located on the left side of the front vehicle, inside the integrated deck, and can simultaneously perform multiple functions as a hydraulic oil tank, deck, and protection. This not only prevents it from being hit by falling rocks but also facilitates maintenance and operation.

[0010] This utility model is achieved according to the following technical solution:

[0011] In a first aspect, this utility model provides a multi-functional hydraulic oil tank, mainly used in articulated dump trucks. The multi-functional hydraulic oil tank is arranged on the side of the front vehicle and includes:

[0012] The hydraulic oil tank system includes an oil tank shell, and the function of the hydraulic oil tank system is to fill and store hydraulic oil for the vehicle lifting system and braking system.

[0013] The integrated deck includes a deck shell, which is mounted on the front vehicle frame. The integrated deck serves as a walkway to provide support for personnel to enter and exit the cab. The hydraulic oil tank system is arranged in the deck shell to protect and insulate the hydraulic oil tank system.

[0014] A safety protection system is installed on the integrated deck, and the safety protection system includes guardrails to protect personnel safety and footboards to support personnel going up and down the deck.

[0015] In some embodiments, the hydraulic oil tank housing is divided into a brake oil tank housing and a lifting oil tank housing by a partition, for storing hydraulic oil for the lifting system and the braking system.

[0016] In some embodiments, both the brake oil tank housing and the lift oil tank housing are equipped with an oil suction filter and an oil return filter for filtering particulate contaminants in the oil.

[0017] In some embodiments, the brake oil tank housing protrudes vertically downwards from the lifting oil tank housing, forming a stepped structure; the bottom plate of the lifting oil tank housing has an oil suction port I, and the brake oil tank housing has an oil suction port II at the part protruding from the lifting oil tank housing, so that there is a height difference between oil suction port I and oil suction port II; the connecting pipe extends from oil suction port I and oil suction port II respectively and is connected to the corresponding oil suction filter.

[0018] In some embodiments, the return oil filter is fixed to the top plate of the brake oil tank housing and the lifting oil tank housing by peripheral bolts; the top plate of the lifting oil tank housing is provided with a working window for replacing the suction filter, and the working window is sealed by a removable oil tank cover.

[0019] In some embodiments, a level gauge mounting base is provided on the outer side plate of both the brake oil tank housing and the lifting oil tank housing, and a level gauge is installed on the level gauge mounting base. An observation port is provided on the deck housing at the position opposite to the level gauge for observing the hydraulic oil level.

[0020] In some embodiments, a plurality of the pedals are fixed vertically at intervals in grooves formed on the sides of the integral deck; the guardrails are respectively fixed to the top of the integral deck on both sides of the pedals, and handrails are fixed to the guardrails near the pedals.

[0021] In some embodiments, the safety protection system further includes a rearview mirror assembly and a support column, the support column being fixed to the top of the one-piece deck, the rearview mirror assembly being hinged to the support column, and the rearview mirror assembly being circumferentially rotatable about the hinge point.

[0022] In some embodiments, an upper mounting plate and a lower mounting plate with a hinge hole coaxially fixed on the support column, and an arc-shaped elongated hole is also provided on the upper mounting plate and the lower mounting plate; the upper connecting plate and the lower connecting plate of the rearview mirror assembly are each provided with two mounting holes, one of which is connected to the hinge hole through a hinge member, and the other mounting hole is connected to the arc-shaped elongated hole through a bolt and nut assembly.

[0023] In some embodiments, the support column is a hollow structure, and the support column has at least one power line through hole at the position opposite to the rearview mirror assembly, so that the wires in the rearview mirror assembly can pass through the support column and protect the wiring.

[0024] In some embodiments, the top and bottom plates of the deck hull are provided with operation and maintenance ports for hydraulic system maintenance, and the operation and maintenance ports are sealed by removable sealing plates; the outer side plate of the deck hull is provided with an observation port for observing the hydraulic oil level, and the observation port is sealed by a removable perforated plate; the outer side plate of the deck hull is provided with a groove structure at a position away from the oil tank hull, and the pedal is arranged in the groove structure.

[0025] In some embodiments, the upper and lower sides of the inner plate of the deck hull are respectively designed with pipeline passage holes for access to hydraulic system pipelines; and / or,

[0026] The outer and top plates of the deck hull are welded with connecting seats to enable the connection of the safety protection system to the integrated deck; and / or,

[0027] The top plate of the deck hull is provided with anti-slip stickers to provide anti-slip function; and / or,

[0028] The recessed structure of the deck shell has a charging gun holder located in the area between two adjacent pedals.

[0029] Secondly, this utility model provides an articulated dump truck, including the aforementioned multi-functional hydraulic oil tank.

[0030] The beneficial effects of this utility model are:

[0031] This utility model aims to provide a multi-functional hydraulic oil tank for articulated dump trucks. It integrates functions such as storing and filling hydraulic oil for the braking system and lifting system, protecting the hydraulic oil tank, and providing hydraulic oil level gauges, filters, and other hydraulic oil tank accessories. It facilitates the observation of hydraulic oil levels, provides safety protection for the operator, and protects the charging gun holder.

[0032] This invention creatively integrates the hydraulic oil tank, left front deck, steps and guardrails, and rearview mirror assembly of the articulated dump truck into a single unit, thus significantly improving space utilization. Placing the hydraulic oil tank at the left front of the cab avoids impacts from falling materials, mitigating safety hazards. The differentiated design between the brake and lifting oil tanks facilitates the arrangement of hydraulic lines, and the integrated design of the hydraulic oil tank within the deck isolates its surface, preventing burns from the high temperature of the oil tank. Attached Figure Description

[0033] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0034] In the attached diagram:

[0035] Figure 1 This is a schematic diagram of the hydraulic oil tank and foredeck layout of an existing articulated dump truck.

[0036] Attached diagram labels: 1-Left fore-deck, 2-Hydraulic oil tank.

[0037] Figure 2 This is a schematic diagram of the multi-functional fuel tank arrangement of the articulated dump truck of this utility model;

[0038] Figure 3 This is a schematic diagram of the multifunctional hydraulic oil tank of this utility model (with the upper sealing plate hidden).

[0039] Figure 4 This is a schematic diagram of the hydraulic oil tank system of this utility model (with the outer deck hidden).

[0040] Figure 5 This is an exploded view of the hydraulic oil tank system of this utility model;

[0041] Figure 6 This is an exploded view of the safety protection system of this utility model;

[0042] Figure 7 This is an exploded view of the rearview mirror assembly of this utility model;

[0043] Figure 8 This is an exploded view of the integrated deck of this utility model;

[0044] Figure 9 This is a schematic diagram showing the position of the charging gun holder of this utility model.

[0045] Attached diagram labels: 10-Hydraulic oil tank system, 20-Safety protection system, 30-Integrated deck; 40-Multi-functional hydraulic oil tank; 101-Brake oil tank housing, 102-Lifting oil tank housing, 103-Return oil filter, 104-Suction oil filter, 105-Suction port I, 106-Suction port II, 107-Tank cover, 108-Level gauge mounting base; 201-Guardrail, 202-Step, 203-Handrail, 2 04-Rearview mirror assembly, 205-Support column, 206-Power cable through hole, 207-Bolt, 208-Connecting plate, 209-Upper mounting plate, 210-Upper connecting plate, 211-Bolt and nut assembly; 301-Deck housing, 302-Upper sealing plate, 303-Lower sealing plate, 304-Side sealing plate, 305-Bolt, 306-Anti-slip sticker, 307-Connecting seat, 308-Charging gun holder, 309-Pipeline through hole.

[0046] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0048] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] like Figure 2 , Figure 3As shown, this utility model provides a multi-functional hydraulic oil tank, mainly used in articulated dump trucks. The multi-functional hydraulic oil tank 40 is arranged on the side of the front vehicle and can simultaneously realize the functions of filling and storing hydraulic oil for the lifting system and braking system of the articulated dump truck, protecting the hydraulic oil tank, protecting the safety of maintenance personnel, observing the hydraulic oil gauge, and protecting the charging gun holder. This utility model mainly consists of three parts: a hydraulic oil tank system 10, a safety protection system 20, and an integrated deck 30. The hydraulic oil tank system 10 consists of an oil tank shell, suction filter, return filter, level gauge, and oil tank cover. Its main function is to fill and store hydraulic oil for the lifting and braking systems of the articulated dump truck. The safety protection system 20 consists of guardrails, steps, support columns, and rearview mirrors. Its main function is to provide safety protection for the driver and maintenance personnel of the articulated dump truck, while the steps provide support for the operator to enter and exit the deck. The integrated deck 30 consists of a deck shell, sealing plate, connecting seat, and anti-slip stickers. Its main function is to serve as a walkway for the driver and maintenance personnel to enter and exit the cab and to provide support when inspecting and adjusting the articulated dump truck. It also serves as the outer shell of the hydraulic oil tank system 10, providing protection and heat insulation for the hydraulic oil tank system 10. The components of the multi-functional hydraulic oil tank are described in detail below.

[0051] like Figure 4 , Figure 5 As shown, the hydraulic oil tank system 10 consists of an oil tank shell, a suction filter 104, a return filter 103, a level gauge, and an oil tank cover 107. The oil tank shell is welded from sheet metal and is located inside the integrated deck 30. The oil tank shell is divided into a brake oil tank shell 101 and a lifting oil tank shell 102 by a partition, which are used to store hydraulic oil for the lifting system and the braking system.

[0052] Both the brake oil tank housing 101 and the lifting oil tank housing 102 are equipped with a suction filter 104 and a return oil filter 103. Their function is to filter particulate contaminants in the oil, maintain the cleanliness of the oil, ensure the reliability of the hydraulic system, and extend the service life of the hydraulic system components.

[0053] The brake oil tank housing 101 protrudes vertically downwards from the lifting oil tank housing 102, forming a stepped structure. The bottom plate of the lifting oil tank housing 102 has an oil suction port I 105, and the brake oil tank housing 101 has an oil suction port II 106 at the protruding part of the lifting oil tank housing 102. This creates a height difference between oil suction ports I 105 and II 106, providing sufficient space for pipeline distribution and facilitating the layout of the hydraulic system pipelines. Connecting pipes extend from oil suction ports I 105 and II 106 respectively and connect to the corresponding oil suction filters 104.

[0054] The return oil filter 103 is fixed to the top plate of the brake oil tank housing 101 and the lifting oil tank housing 102 by peripheral bolts; the top plate of the lifting oil tank housing 102 is provided with a working window for replacing the suction filter 104, and the working window is sealed by a removable oil tank cover 107.

[0055] Both the brake oil tank housing 101 and the lifting oil tank housing 102 are provided with a level gauge mounting base 108 on their outer side plates. A level gauge is installed on the level gauge mounting base 108. The deck housing 301 has an observation port at the position relative to the level gauge for observing the hydraulic oil level.

[0056] like Figure 6 As shown, the safety protection system 20 consists of guardrails 201, handrails 203, pedals 202, support columns 205, and rearview mirror assemblies 204. The pedals 202 are welded or assembled into the recessed structure of the integrated deck 30. Handrails 203 are provided on both sides of the pedals 202 to facilitate the driver and maintenance personnel in ascending and descending the deck and entering the wheelhouse. The handrails 203 and guardrails 201 are made of bent and welded steel. The left side guardrail of the pedal 202 is welded to the support column 205. The support column 205 is designed as a hollow structure with a power cable through-hole 206 at the top, allowing electrical system wiring to pass through and protecting the wiring. Connecting plates 208 are welded below the guardrails 201 on both sides. The connecting plates 208 are fixed to the connecting seats 307 in the integrated deck 30 by bolts 207 to connect the safety protection system 20 to the integrated deck 30. The rearview mirror assembly 204 is hinged to the support column 205, and the rearview mirror assembly 204 can rotate circumferentially around the hinge point to ensure that the driver has the best viewing angle.

[0057] like Figure 7 As shown, an upper mounting plate 209 and a lower mounting plate with coaxial hinge holes are fixed on the support column 205. Both the upper and lower mounting plates have arc-shaped elongated holes. The upper connecting plate 210 and lower connecting plate of the rearview mirror assembly 204 each have two mounting holes. One mounting hole is connected to the hinge hole via a bolt and nut assembly 211, and the other mounting hole is connected to the arc-shaped elongated hole via the bolt and nut assembly 211. By loosening the nut, the rearview mirror assembly 204 can be rotated around the support column 205 to achieve the optimal viewing angle. Tightening the nut then secures the rearview mirror assembly 204 to the support column 205.

[0058] like Figure 8 , Figure 9As shown, the integrated deck 30 consists of a deck shell 301, sealing plates, connecting seats 307, and anti-slip stickers 306. The sealing plates include an upper sealing plate 302, a lower sealing plate 303, and side sealing plates 304. The deck shell 301 is welded from sheet metal, with operation and maintenance ports at its top and bottom for hydraulic system maintenance, and an observation port on its side for observing the hydraulic oil level. Sealing plates 302, 303, and 304 are provided for both the operation and maintenance ports and the observation port to protect the hydraulic oil tank. Welded nuts are provided inside the deck shell 301, and bolts 305 connect the deck shell 301 to the sealing plates 302, 303, and 304. The side sealing plate 304 is an orifice plate for observing the level gauge. Pipeline through holes 309 are designed on the upper and lower sides of the back of the deck shell 301 for connecting hydraulic system pipelines. Connecting seats 307 are welded to the outer side and top of the deck shell 301 to connect the safety protection system 20 to the integrated deck 30. The rear left side of the deck housing 301 is designed with a recessed structure to accommodate the pedals 202. The charging gun holder 308 is installed inside the recess and located between the two pedals 202. Anti-slip stickers 306 are provided on the top of the deck housing 301 to provide anti-slip functionality and ensure the safety of the driver and maintenance personnel.

[0059] As can be seen from the above, this utility model provides a multifunctional hydraulic oil tank, which achieves the following functions and effects:

[0060] 1. The hydraulic oil tank is located on the left side of the front vehicle, inside the integrated deck, which can realize multiple functions of hydraulic oil tank, deck and protection at the same time. It can avoid being hit by falling rocks and facilitate maintenance operations.

[0061] 2. By placing the hydraulic oil tank inside the integrated deck, the space utilization rate is improved. The integrated deck can protect the hydraulic oil tank while also providing heat insulation to prevent nearby personnel from being burned.

[0062] 3. The safety protection system and ladder are integrated into the multi-functional fuel tank to provide safety protection for maintenance personnel.

[0063] 4. The design of the brake oil tank and the lifting oil tank with a stepped structure facilitates the layout of hydraulic pipelines.

[0064] 5. Operation and maintenance ports are set above and below the deck to facilitate maintenance and hydraulic oil filling. Sealing plates are also installed to protect the hydraulic oil tank from corrosion and the hydraulic oil from contamination.

[0065] 6. Placing the charging gun holder under the pedal can prevent stones from hitting it and provide effective protection.

[0066] The articulated dump truck provided by this utility model is described below. The articulated dump truck described below and the multi-functional hydraulic oil tank described above can be referred to in correspondence.

[0067] like Figure 2 As shown, the articulated dump truck provided by this utility model may include a multi-functional hydraulic oil tank 40 as described in any of the above embodiments.

[0068] In summary, this utility model aims to provide a multi-functional hydraulic oil tank for articulated dump trucks. It integrates the storage and filling of hydraulic oil for the braking system and lifting system, protects the hydraulic oil tank, and includes accessories such as a hydraulic oil level gauge and filter. It facilitates the observation of hydraulic oil levels, provides safety protection for the operator, and protects the charging gun holder. Through integrated design, the hydraulic oil tank, left front deck, steps and guardrails, and electric rearview mirror assembly of the articulated dump truck are designed as a single unit, improving space utilization. The hydraulic oil tank is positioned on the left front side of the cab, avoiding impact from falling materials and mitigating safety hazards. The brake oil tank and lifting oil tank employ a stepped design, facilitating the arrangement of hydraulic lines. The hydraulic oil tank is located inside the integrated deck, with an observation port designed on the deck to avoid the risk of burns while facilitating the observation of the hydraulic oil level.

[0069] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0070] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0071] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A multi-functional hydraulic oil tank, mainly used in articulated dump trucks, characterized in that, The multi-functional hydraulic oil tank is located on the side of the front vehicle and includes: The hydraulic oil tank system includes an oil tank shell, and the function of the hydraulic oil tank system is to fill and store hydraulic oil for the vehicle lifting system and braking system. The integrated deck includes a deck shell, which is mounted on the front vehicle frame. The integrated deck serves as a walkway to provide support for personnel to enter and exit the cab. The hydraulic oil tank system is arranged in the deck shell to protect and insulate the hydraulic oil tank system. A safety protection system is installed on the integrated deck, and the safety protection system includes guardrails to protect personnel safety and footboards to support personnel going up and down the deck.

2. The multifunctional hydraulic oil tank according to claim 1, characterized in that: The hydraulic oil tank shell is divided into a brake oil tank shell and a lifting oil tank shell by a partition, which are used to store hydraulic oil for the lifting system and the braking system.

3. A multifunctional hydraulic oil tank according to claim 2, characterized in that: Both the brake oil tank housing and the lift oil tank housing are equipped with an oil suction filter and an oil return filter for filtering particulate contaminants in the oil.

4. A multifunctional hydraulic oil tank according to claim 3, characterized in that: The brake oil tank housing protrudes vertically downward from the lifting oil tank housing, and the two form a stepped structure. The bottom plate of the lifting oil tank housing has an oil suction port I, and the brake oil tank housing has an oil suction port II at the part protruding from the lifting oil tank housing, so that there is a height difference between oil suction port I and oil suction port II; the connecting pipe extends into oil suction port I and oil suction port II respectively and connects to the corresponding oil suction filter.

5. A multifunctional hydraulic oil tank according to claim 3, characterized in that: The return oil filter is fixed to the top plate of the brake oil tank housing and the lifting oil tank housing by peripheral bolts; The top plate of the lifting tank housing is provided with a working window for replacing the oil suction filter, and the working window is sealed by a removable tank cover.

6. A multifunctional hydraulic oil tank according to claim 2, characterized in that: Both the brake oil tank housing and the lifting oil tank housing are provided with level gauge mounting bases on their outer side plates. Level gauges are installed on the level gauge mounting bases. The deck housing has an observation port at the position opposite the level gauge for observing the hydraulic oil level.

7. A multifunctional hydraulic oil tank according to claim 1, characterized in that: The multiple pedals are fixed at intervals in the groove structure opened on the side of the one-piece deck; The guardrails are fixed to the top of the integrated deck on both sides of the pedal, and handrails are fixed to the guardrails near the pedal.

8. A multifunctional hydraulic oil tank according to claim 1, characterized in that: The safety protection system also includes a rearview mirror assembly and a support column. The support column is fixed to the top of the one-piece deck, and the rearview mirror assembly is hinged to the support column and can rotate circumferentially around the hinge point.

9. A multifunctional hydraulic oil tank according to claim 8, characterized in that: The support column is fixed with an upper mounting plate and a lower mounting plate coaxial with hinge holes, and the upper mounting plate and the lower mounting plate are also provided with arc-shaped elongated holes. The upper and lower connecting plates of the rearview mirror assembly are each provided with two mounting holes. One mounting hole is connected to the hinge hole through a hinge, and the other mounting hole is connected to the arc-shaped elongated hole through a bolt and nut assembly.

10. A multifunctional hydraulic oil tank according to claim 8, characterized in that: The support column is a hollow structure, and at least one power line through hole is provided on the support column at the position opposite to the rearview mirror assembly, so that the wires in the rearview mirror assembly can pass through the support column and protect the wiring.

11. A multifunctional hydraulic oil tank according to claim 1, characterized in that: The top and bottom plates of the deck hull are provided with operation and maintenance ports for hydraulic system maintenance, and the operation and maintenance ports are sealed by removable sealing plates; the outer side plate of the deck hull is provided with an observation port for observing the hydraulic oil level, and the observation port is sealed by a removable perforated plate. The outer side plate of the deck shell has a groove structure at a position away from the fuel tank shell, and the pedal is arranged in the groove structure.

12. A multifunctional hydraulic oil tank according to claim 11, characterized in that: The inner side plate of the deck hull is designed with pipeline passage holes on the upper and lower sides for the connection of hydraulic system pipelines; and / or, The outer and top plates of the deck hull are welded with connecting seats to enable the connection of the safety protection system to the integrated deck; and / or, The top plate of the deck hull is provided with anti-slip stickers to provide anti-slip function; and / or, The recessed structure of the deck shell has a charging gun holder located in the area between two adjacent pedals.

13. An articulated dump truck, characterized in that: Includes the multifunctional hydraulic oil tank as described in any one of claims 1 to 12.

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