Combined fuel tank and loader-digger

By designing a combined fuel tank, the problems of difficulty in replacing and easy damage of urea tank are solved, the stability and convenient operation of urea tank are achieved, and the efficiency of urea filling is improved.

CN223266619UActive Publication Date: 2025-08-26XCMG CONSTRUCTION MACHINERY CO LTD SCIENCE & TECHNOLOGY BRANCH
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Patent Information

Application Number
CN202422885346.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-08-26
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

In the prior art, the design of the urea tank built into the fuel tank makes it difficult to replace, and the urea filling port is susceptible to damage caused by external environment.

Method used

A combined fuel tank is designed, including a fuel tank box and a urea box. The top of the fuel tank box is equipped with an accommodating chamber. The urea box is fixed in the accommodating chamber through a urea box clamp. The accommodating chamber is equipped with a removable fuel tank cover plate, and is equipped with shock-absorbing rubber pads and anti-wear rubber strips. A small cover plate is provided at the urea filling port, and the urea discharge port is connected to the urea pipeline through a through channel.

Benefits of technology

The stability and convenient disassembly of the urea box are achieved, the urea box cover is protected from damage, and the convenience and working efficiency of urea filling are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The combined fuel tank comprises a fuel tank body and a urea tank, a fuel filling port is formed in the top of the fuel tank body, one end of the top of the fuel tank body is concaved downwards to form a containing cavity for containing the urea tank, and the urea tank is arranged in the containing cavity. The urea tank is fixed in the containing cavity through a urea tank clamp, an opening allowing the urea tank to pass through is formed in at least one face of the containing cavity, and a detachable fuel tank cover plate is arranged at the opening of the containing cavity. By means of the structure, the stability of the urea box in the vehicle running process is guaranteed, and rapid disassembly and assembly operation can be conveniently conducted when needed; and meanwhile, the urea box cover is protected, and the urea box cover is prevented from being damaged due to the influence of the external environment.
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Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a combined fuel tank and an excavator loader. Background Art

[0002] Backhoe loaders, as multifunctional engineering machines that combine the functions of an excavator and a loader, are adaptable to a variety of operating environments and are widely popular in domestic and international markets. With increasingly stringent off-road emission standards, engines require SCR systems to meet these requirements. To facilitate diesel and urea refueling and reduce space consumption, the urea tank is often integrated with the fuel tank. However, this design, where the urea tank is built into the fuel tank, makes it difficult to replace the urea tank. Furthermore, the exposed urea tank cover at the urea refill port is susceptible to damage from environmental factors such as rain, dust, and impact. Utility Model Content

[0003] In order to solve the above-mentioned problems in the prior art, the utility model provides a combined fuel tank, including a fuel tank body and a urea tank, the top of the fuel tank body is provided with a fuel filling port, one end of the top of the fuel tank body is concave downward to form a accommodating chamber for accommodating the urea tank, the urea tank is fixed in the accommodating chamber by a urea tank clamp, at least one surface of the accommodating chamber is provided with an opening for allowing the urea tank to pass through, and a detachable fuel tank cover is provided at the opening of the accommodating chamber.

[0004] Furthermore, the top surface and the front side surface of the accommodating chamber are provided with openings, and the top surface opening and the front side surface opening of the accommodating chamber extend to each other and merge into one.

[0005] Furthermore, a mounting bracket is provided at the bottom of the accommodating chamber, and the urea tank is fixed on the mounting bracket via a urea tank clamp.

[0006] Furthermore, a shock-absorbing rubber pad is provided on the inner side wall of the accommodating chamber facing the urea tank, so as to reduce the damage caused by collision between the urea tank and the fuel tank body.

[0007] Furthermore, a urea filling port is provided on the top of the urea tank, and a small cover is provided on the fuel tank cover corresponding to the urea filling port. The upper end of the small cover is hinged to the fuel tank cover, and the lower end of the small cover is connected to the fuel tank cover by a lock.

[0008] Furthermore, a urea discharge port is provided on the back of the urea tank, and a discharge channel extending from front to back is provided in the accommodating chamber corresponding to the urea discharge port, and a urea pipeline passes through the discharge channel and is connected to the urea discharge port.

[0009] Furthermore, rubber strips are provided around the discharge channel, and the rubber strips are used to prevent the urea pipeline from being worn.

[0010] A backhoe loader comprises the combined fuel tank as described above.

[0011] Compared with the prior art, the combined fuel tank and backhoe loader of the present invention have the following advantages:

[0012] The combined fuel tank of this utility model features a fuel tank body with a storage chamber, into which the urea tank is secured by a urea tank clamp. A removable fuel tank cover is located at the opening of the chamber. This structure ensures the stability of the urea tank during vehicle operation and facilitates quick assembly and disassembly when needed. It also protects the urea tank cover, preventing damage from the external environment. Furthermore, a small cover is provided on the fuel tank cover corresponding to the urea filling port, making urea filling more convenient and significantly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the combined fuel tank of the present utility model;

[0014] Figure 2 This is the assembly layout diagram of the fuel tank body and urea tank of the utility model;

[0015] Figure 3 This is a rear view of the combined fuel tank of the present utility model;

[0016] Figure 4 This is a schematic structural diagram of the fuel tank body of the present utility model;

[0017] In the figure: 1. Fuel tank body; 2. Bolt; 3. Fuel tank cover; 4. Small cover; 5. Lock; 6. Urea tank; 7. Urea tank clamp; 8. Accommodating chamber; 9. Mounting bracket; 10. Shock-absorbing rubber pad. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0020] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0021] like Figure 1 、 Figure 2 As shown, the utility model discloses a combined fuel tank, including a fuel tank body 1 and a urea tank 6. The fuel tank body 1 is a square structure and is fixed to the excavator loader. A fuel filling port, a fuel sensor and a fuel cap are provided in the middle of the top of the fuel tank body 1. The top of the tank body on the left side of the fuel filling port is concave downward to form a receiving chamber 8 for receiving the urea tank 6. The urea tank 6 is fixed in the receiving chamber 8 by a urea tank clamp 7. The top surface and the front side of the receiving chamber 8 are provided with openings. The top surface opening and the front side opening of the receiving chamber 8 extend to each other and merge into one. The urea tank 6 can enter and exit the receiving chamber 8 through the opening. A fuel tank cover plate 3 is provided at the opening of the receiving chamber 8. The fuel tank cover plate 3 is a bent plate structure, which is fixed to the fuel tank body 1 by bolts 2, thereby completely sealing the urea tank 6 in the receiving chamber 8.

[0022] The urea tank 6 of this embodiment is secured within the housing chamber 8 via the urea tank clamp 7, ensuring stability during vehicle operation and facilitating quick assembly and disassembly when necessary. Furthermore, the fuel tank cover 3 protects the urea tank cover, preventing damage from the external environment.

[0023] In some embodiments, as Figure 4As shown, a mounting bracket 9 is provided at the bottom of the accommodating chamber 8, and the urea tank 6 is secured to the mounting bracket 9 via a urea tank clamp 7. Specifically, two mounting brackets 9 are welded to the bottom of the accommodating chamber 8, spaced apart. The mounting brackets 9 are elongated and have a passage extending therethrough. The urea tank clamp 7 passes through the passage of the mounting bracket 9 to securely connect the urea tank 6 to the mounting bracket 9. To replace, maintain, or repair the urea tank 6, simply tighten the bolt 2, open the fuel tank cover 3, and remove the urea tank clamp 7.

[0024] In some embodiments, a shock-absorbing rubber pad 10 is provided on the inner wall of the accommodating chamber 8 facing the urea tank 6. Preferably, shock-absorbing rubber pads 10 are provided on the left and right side walls of the accommodating chamber 8 to reduce damage caused by collision between the urea tank 6 and the fuel tank body 1.

[0025] In some embodiments, a urea filling port and a urea tank cover are provided at the top of the urea tank 6. A small cover plate 4 is provided at the fuel tank cover plate 3 corresponding to the urea filling port. The upper end of the small cover plate 4 is hinged to the fuel tank cover plate 3, and the lower end of the small cover plate 4 is connected to the fuel tank cover plate 3 via a lock 5. Urea can be added by simply opening the lock 5, flipping up the small cover plate 4, and then opening the urea tank cover, which greatly improves work efficiency.

[0026] In some embodiments, as Figure 3 As shown, the back of the urea tank 6 is provided with a urea discharge port, and the receiving chamber 8 is provided with a discharge channel that runs through the front and back corresponding to the urea discharge port. The urea pipeline passes through the discharge channel and is connected to the urea discharge port. The discharge channel is surrounded by rubber strips to prevent wear of the urea pipeline.

[0027] In some embodiments, one side of the front end of the fuel tank body 1 is concave inward to form a receiving space for accommodating pedals. Two pedals are fixed in the receiving space with an upper and lower spacing, and are fixedly connected to the fuel tank body 1 by bolts.

[0028] The utility model also discloses an excavator loader, comprising the combined fuel tank as described above.

[0029] It is understood that what is described in the detailed description is merely one embodiment of the present invention, and that those skilled in the art may make various changes or equivalent substitutions to these features and embodiments without departing from the spirit and scope of the present invention. Furthermore, under the guidance of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. A combined fuel tank, characterized in that: The invention comprises a fuel tank body (1) and a urea tank (6), wherein the top of the fuel tank body (1) is provided with a fuel filling port, one end of the top of the fuel tank body (1) is concave downward to form a receiving chamber (8) for receiving the urea tank (6), the urea tank (6) is fixed in the receiving chamber (8) by a urea tank clamp (7), at least one surface of the receiving chamber (8) is provided with an opening capable of allowing the urea tank (6) to pass through, and a detachable fuel tank cover (3) is provided at the opening of the receiving chamber (8).

2. The combined fuel tank according to claim 1, characterized in that: The top surface and the front side surface of the accommodating chamber (8) are provided with openings, and the top surface opening and the front side surface opening of the accommodating chamber (8) extend to each other and merge into one.

3. The combined fuel tank according to claim 1, characterized in that: A mounting bracket (9) is provided at the bottom of the accommodating chamber (8), and the urea tank (6) is fixed to the mounting bracket (9) via a urea tank clamp (7).

4. The combined fuel tank according to claim 3, characterized in that: A shock-absorbing rubber pad (10) is provided on the inner side wall of the accommodating chamber (8) facing the urea tank (6) to reduce damage caused by collision between the urea tank (6) and the fuel tank body (1).

5. The combined fuel tank according to claim 1, characterized in that: A urea filling port is provided on the top of the urea tank (6); a small cover plate (4) is provided on the fuel tank cover plate (3) corresponding to the urea filling port; the upper end of the small cover plate (4) is hinged to the fuel tank cover plate (3); and the lower end of the small cover plate (4) is connected to the fuel tank cover plate (3) via a lock (5).

6. The combined fuel tank according to claim 1, characterized in that: A urea discharge port is provided on the back of the urea tank (6), and a discharge channel extending from front to back is provided in the accommodating chamber (8) corresponding to the urea discharge port. A urea pipeline passes through the discharge channel and is connected to the urea discharge port.

7. The combined fuel tank according to claim 6, characterized in that: The discharge channel is surrounded by rubber strips, which are used to prevent the urea pipeline from being worn.

8. A backhoe loader, characterized in that: The invention comprises a combined fuel tank as described in any one of claims 1 to 7.