Oil tank device integrated with bypass valve and forklift

Abstract

The utility model relates to the technical field of hydraulic oil tanks, and particularly discloses an oil tank device integrated with a bypass valve and a forklift, the oil tank device comprises an oil tank, a first pipe joint and the bypass valve, the oil tank is provided with a mounting hole, the first pipe joint is fixedly mounted in the mounting hole, and the bypass valve is fixedly mounted on the oil tank through the first pipe joint. The bypass valve is integrated on the oil tank, so that no pipeline needs to be connected between the bypass valve and the oil tank, the whole structure is simple, installation and maintenance are easy, the oil tank is suitable for most forklifts with hydraulic oil heat dissipation systems at present, cost is reduced, and products are more competitive.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil tanks, and particularly relates to an oil tank device integrated with a bypass valve. Background Technique

[0002] With the development of forklift technology, many vehicle models need to dissipate heat from hydraulic oil. To ensure the safety of the hydraulic system, a bypass valve needs to be added to the radiator pipeline to divert the hydraulic oil to the oil tank when the pipeline pressure is too high. In the current vehicle models, a bracket is welded on the bypass valve and fixedly installed on the vehicle frame through the bracket, and the bypass valve is respectively connected to the radiator and the oil tank through pipelines. The structure of this technical solution is relatively complex and the cost is relatively high. Content of the Utility Model

[0003] The utility model aims to provide an oil tank device integrated with a bypass valve to solve the above-mentioned existing technical problems.

[0004] To achieve the above object, the technical solution of the utility model is: an oil tank device integrated with a bypass valve, including an oil tank, a first pipe joint and a bypass valve. An installation hole is opened on the oil tank, the first pipe joint is fixedly installed in the installation hole, and the bypass valve is fixedly installed on the oil tank through the first pipe joint.

[0005] Preferably, a pipe sleeve seat is welded in the installation hole, and the first pipe joint is fixedly installed on the oil tank through the pipe sleeve seat; or the first pipe joint is fixedly installed in the installation hole by welding.

[0006] Preferably, it further includes a second pipe joint and a radiator. A second pipe joint and a pipeline are connected between the bypass valve and the radiator. The oil tank is a hydraulic oil tank, and the bypass valve is fixedly installed on the upper side of the oil tank through the first pipe joint.

[0007] Preferably, the first pipe joint is an L-shaped two-way structure, and the bypass valve is a straight pipe-shaped two-way structure.

[0008] Preferably, the first pipe joint is a straight pipe-shaped two-way structure, the bypass valve is an L-shaped two-way structure, and the first pipe joint and the bypass valve are integrally formed.

[0009] Preferably, the first pipe joint is a T-shaped three-way structure, and the bypass valve is a straight pipe-shaped two-way structure.

[0010] Preferably, the first pipe joint is a T-shaped three-way structure, the bypass valve is a straight pipe-shaped two-way structure, and the first pipe joint and the bypass valve are integrally formed.

[0011] Preferably, the first pipe joint is a two-way or three-way structure, the bypass valve is a straight pipe-shaped two-way structure, and the first pipe joint is fixedly welded on the oil tank.

[0012] Preferably, the first pipe joint is an L-shaped two-way structure, the bypass valve is a T-shaped three-way structure, and the bypass valve includes a straight pipe-shaped bypass valve body and a T-shaped three-way joint integrally formed at one end of the bypass valve body away from the first pipe joint.

[0013] The present utility model also provides a forklift, which includes the fuel tank device with an integrated bypass valve as described in any one of the above.

[0014] The present utility model has the following beneficial effects:

[0015] The present utility model includes a fuel tank, a first pipe joint and a bypass valve. An installation hole is provided on the fuel tank, the first pipe joint is fixedly installed in the installation hole, and the bypass valve is fixedly installed on the fuel tank through the first pipe joint. This setting integrates the bypass valve on the fuel tank, so that there is no need to connect pipelines between the bypass valve and the fuel tank. The overall structure is simple, easy to install and maintain, applicable to most current forklifts with a hydraulic oil cooling system, and reduces costs, making the product more competitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of Embodiment 1 of the present utility model.

[0017] Figure 2 is a front view of Embodiment 1 of the present utility model.

[0018] Figure 3 is a partial cross-sectional view of Embodiment 1 of the present utility model.

[0019] Figure 4 is a schematic diagram of the pipeline connection of Embodiment 1 of the present utility model.

[0020] Figure 5 is a perspective view of Embodiment 2 of the present utility model.

[0021] Figure 6 is a partial cross-sectional view of Embodiment 2 of the present utility model.

[0022] Figure 7 is a perspective view of Embodiment 3 of the present utility model.

[0023] Figure 8 is a partial cross-sectional view of Embodiment 3 of the present utility model.

[0024] Figure 9 is a perspective view of Embodiment 4 of the present utility model.

[0025] Figure 10 is a partial cross-sectional view of Embodiment 4 of the present utility model.

[0026] Figure 11 is a perspective view of Embodiment 5 of the present utility model.

[0027] Figure 12 It is a partial cross-sectional view of Embodiment 5 of the present utility model.

[0028] Figure 13 It is a perspective view of Embodiment 6 of the present utility model.

[0029] Figure 14 It is a partial cross-sectional view of Embodiment 6 of the present utility model.

[0030] Figure 15 It is a perspective view of Embodiment 7 of the present utility model.

[0031] Figure 16 It is a partial cross-sectional view of Embodiment 7 of the present utility model.

[0032] Reference numerals in the drawings: 1. Fuel tank, 2. First pipe joint, 3. Pipe, 4. Bypass valve, 41. Bypass valve body, 42. T-shaped three-way joint, 5. Radiator, 6. Pipe sleeve seat, 7. Second pipe joint. Detailed implementation manners

[0033] To further illustrate each embodiment, the present utility model provides accompanying drawings. These drawings are a part of the disclosure of the present utility model, mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0034] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientation or positional relationships shown in the drawings, and are 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 to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] Embodiment 1.

[0037] Refer to Figure 1-4 Figure 1-4 As shown in the figure, as an embodiment of the present invention, a fuel tank device integrated with a bypass valve is provided, which includes a fuel tank 1, a first pipe joint 2, a bypass valve 4, a second pipe joint 7 and a radiator 5. An installation hole is provided on the fuel tank 1, and a pipe sleeve seat 6 is welded in the installation hole. The first pipe joint 2 is fixedly installed on the fuel tank 1 through the pipe sleeve seat 6, and the bypass valve 4 is fixedly installed on the fuel tank 1 through the first pipe joint 2, thereby improving the installation stability of the bypass valve 4 on the fuel tank 1. A second pipe joint 7 and a pipe 3 are connected between the bypass valve 4 and the radiator 5. Among them, the fuel tank 1 is a hydraulic fuel tank, the pipe 3 is a hose, the second pipe joint 7 is a T-shaped three-way structure, the first pipe joint 2 is an L-shaped two-way structure, and the bypass valve 4 is a straight pipe-shaped two-way structure. This setting integrates the bypass valve 4 on the fuel tank 1 through the first pipe joint 2, so that there is no need to connect a hose between the bypass valve 4 and the fuel tank 1, reducing the number of hoses and simplifying the structure of the oil return system. The overall structure is simple, easy to install and maintain, applicable to most current forklifts with a hydraulic oil cooling system, and reduces costs, making the product more competitive.

[0038] In this embodiment, the bypass valve 4 is fixedly installed on the upper side of the fuel tank 1 through the first pipe joint 2, so that there is a large operating space during maintenance and replacement, and the hydraulic oil in the fuel tank 1 will not leak out.

[0039] Embodiment 2. For the sake of brevity, this embodiment mainly describes the differences from Embodiment 1.

[0040] Refer to Figure 5 And 6 6 As shown in the figure, as an embodiment of the present invention, a fuel tank device integrated with a bypass valve is provided, which includes a fuel tank 1, a first pipe joint 2, a bypass valve 4 and a radiator 5. An installation hole is provided on the fuel tank 1, and a pipe sleeve seat 6 is welded in the installation hole. The first pipe joint 2 is fixedly installed on the fuel tank 1 through the pipe sleeve seat 6, and the bypass valve 4 is fixedly installed on the fuel tank 1 through the first pipe joint 2. A pipe 3 is connected between the bypass valve 4 and the radiator 5, thereby improving the installation stability of the bypass valve 4 on the fuel tank 1. And the first pipe joint 2 is an L-shaped two-way structure, the bypass valve 4 is a T-shaped three-way structure, and the bypass valve 4 includes a straight pipe-shaped bypass valve body 41 and a T-shaped three-way joint 42 integrally formed at one end of the bypass valve body 41 away from the first pipe joint 2, so that the bypass valve 4 can branch two hoses to meet specific oil circuit requirements, while simplifying the structure of the oil return system. The overall structure is simple, easy to install and maintain, applicable to most current forklifts with a hydraulic oil cooling system, and reduces costs, making the product more competitive.

[0041] Embodiment 3. For the sake of brevity, this embodiment mainly describes the differences from Embodiment 1.

[0042] Refer toFigure 7 as shown in 8 As shown in 8 , as an embodiment of the present utility model, a fuel tank device integrated with a bypass valve is provided. The first pipe joint 2 is a straight-through two-way structure, and the bypass valve 4 is an L-shaped two-way structure. Moreover, the first pipe joint 2 and the bypass valve 4 are integrally formed, further reducing the number of components, making the installation more convenient and fast. At the same time, the structure of the oil return system is simplified, the overall structure is simple, easy to install and maintain, applicable to most current forklifts with a hydraulic oil cooling system, and the cost is reduced, making the product more competitive.

[0043] Embodiment 4. For the sake of brevity, this embodiment mainly describes the differences from Embodiment 1.

[0044] Refer to Figure 9 as shown in 10 As shown in 10 , as an embodiment of the present utility model, a fuel tank device integrated with a bypass valve is provided. The first pipe joint 2 is a T-shaped three-way structure, and the bypass valve 4 is a straight-through two-way structure, thereby improving the installation stability of the bypass valve 4 on the fuel tank 1, and enabling one end of the first pipe joint 2 to be externally connected to the pipeline 3 to meet the requirements of more oil circuit settings. At the same time, the structure of the oil return system is simplified, the overall structure is simple, easy to install and maintain, applicable to most current forklifts with a hydraulic oil cooling system, and the cost is reduced, making the product more competitive.

[0045] Embodiment 5. For the sake of brevity, this embodiment mainly describes the differences from Embodiment 1.

[0046] Refer to Figure 11 as shown in 12 As shown in 12 , as an embodiment of the present utility model, a fuel tank device integrated with a bypass valve is provided. The first pipe joint 2 is a T-shaped three-way structure, and the bypass valve 4 is a straight-through two-way structure, and the first pipe joint 2 and the bypass valve 4 are integrally formed. On the one hand, the number of components is further reduced, and the installation is more convenient and fast. On the other hand, both ends of the upper side of the bypass valve 4 can be externally connected to the pipeline to meet the requirements of more oil circuit settings. At the same time, the structure of the oil return system is simplified, the overall structure is simple, easy to install and maintain, applicable to most current forklifts with a hydraulic oil cooling system, and the cost is reduced, making the product more competitive.

[0047] Embodiment 6. For the sake of brevity, this embodiment mainly describes the differences from Embodiment 1.

[0048] Refer to Figure 13 as shown in 14As shown in the figure, as an embodiment of the present utility model, a fuel tank device integrated with a bypass valve is provided. The first pipe joint 2 is directly fixedly installed in the installation hole by welding, so as to achieve the purpose of cost saving. The first pipe joint 2 is a T-shaped three-way structure, and the bypass valve 4 is a straight pipe-shaped two-way structure, enabling one end of the first pipe joint 2 to be externally connected to a pipeline, meeting the requirements of more oil circuit settings. At the same time, the structure of the oil return system is simplified, the overall structure is simple, easy to install and maintain, applicable to most current forklifts with a hydraulic oil cooling system, and the cost is reduced, making the product more competitive.

[0049] Embodiment 7. For the sake of brevity, this embodiment mainly describes the differences from Embodiment 1.

[0050] Refer to Figure 15 And 16 As shown in the figure, as an embodiment of the present utility model, a fuel tank device integrated with a bypass valve is provided. The first pipe joint 2 is directly fixedly installed in the installation hole by welding, so as to achieve the purpose of cost saving. The first pipe joint 2 is an L-shaped two-way structure, and the bypass valve 4 is a straight pipe-shaped two-way structure. At the same time, the structure of the oil return system is simplified, the overall structure is simple, easy to install and maintain, applicable to most current forklifts with a hydraulic oil cooling system, and the cost is reduced, making the product more competitive.

[0051] The present utility model also provides a forklift, which includes the fuel tank device integrated with a bypass valve according to any one of the above Embodiments 1 to 7, such that there is no need to connect a hose between the bypass valve 4 and the fuel tank 1, reducing the number of hoses, simplifying the structure of the oil return system, having a simple overall structure, being easy to install and maintain, and reducing the cost, making the product more competitive.

[0052] Although the present utility model is specifically shown and introduced in combination with the preferred implementation embodiments, those skilled in the art should understand that various changes made to the present utility model in terms of form and details without departing from the spirit and scope of the present utility model defined by the appended claims all fall within the protection scope of the present utility model.

Claims

1. A fuel tank device with an integrated bypass valve, characterized in that: It comprises an oil tank, a first pipe joint and a bypass valve. The oil tank is provided with a mounting hole, the first pipe joint is fixedly mounted in the mounting hole, and the bypass valve is fixedly mounted on the oil tank through the first pipe joint.

2. The oil tank device with integrated bypass valve according to claim 1, characterized in that: A pipe sleeve seat is welded in the mounting hole, and the first pipe joint is fixedly mounted on the oil tank through the pipe sleeve seat; or the first pipe joint is fixedly mounted in the mounting hole by welding.

3. The oil tank device with integrated bypass valve according to claim 1, characterized in that: It also includes a second pipe joint and a radiator. The second pipe joint and a pipeline are connected between the bypass valve and the radiator. The oil tank is a hydraulic oil tank. The bypass valve is fixedly installed on the upper side of the oil tank through the first pipe joint.

4. The oil tank device with integrated bypass valve according to any one of claims 1 to 3, characterized in that: The first pipe joint is an L-shaped two-way structure, and the bypass valve is a straight pipe two-way structure.

5. The oil tank device with integrated bypass valve according to any one of claims 1 to 3, characterized in that: The first pipe joint is a straight pipe two-way structure, the bypass valve is an L-shaped two-way structure, and the first pipe joint and the bypass valve are integrally formed.

6. The oil tank device with integrated bypass valve according to any one of claims 1 to 3, characterized in that: The first pipe joint is a T-shaped three-way structure, and the bypass valve is a straight pipe two-way structure.

7. The oil tank device with integrated bypass valve according to any one of claims 1 to 3, characterized in that: The first pipe joint is a T-shaped three-way structure, the bypass valve is a straight pipe two-way structure, and the first pipe joint and the bypass valve are integrally formed.

8. The oil tank device with integrated bypass valve according to any one of claims 1 to 3, characterized in that: The first pipe joint is a two-way or three-way structure, the bypass valve is a straight pipe two-way structure, and the first pipe joint is welded and fixed on the oil tank.

9. The oil tank device with integrated bypass valve according to any one of claims 1 to 3, characterized in that: The first pipe joint is an L-shaped two-way structure, the bypass valve is a T-shaped three-way structure, and the bypass valve includes a straight pipe-shaped bypass valve body and an integrally formed T-shaped three-way joint arranged at one end of the bypass valve body away from the first pipe joint.

10. A forklift, characterized in that: An oil tank device comprising an integrated bypass valve as described in any one of claims 1 to 9.

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