Turnover hydraulic oil tank protection device and hydraulic oil tank
By designing a flip-up hydraulic oil tank protection device, and utilizing a hinged structure and a limiting mechanism, the problems of time-consuming, labor-intensive, and safety hazards associated with existing hydraulic oil tank protection covers have been solved, achieving the effects of simplifying maintenance procedures, improving safety, and extending equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINGONG GROUP (JINAN) HEAVY MACHINERY CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-28
AI Technical Summary
Existing hydraulic oil tank protective cover designs are time-consuming and labor-intensive, difficult to maintain, and pose safety hazards. They cannot provide a stable and safe maintenance environment and are easily affected by material impacts and moisture intrusion.
Design a flip-up hydraulic oil tank protection device, including a support frame, a protection unit and a flip-up connection mechanism. The flip-up of the protection unit is achieved through a hinge structure. Combined with a limiting mechanism and fixing parts, the stability and safety of the flip-up process are ensured. An inclined angle is set on the protection unit to prevent debris accumulation and moisture ingress.
It simplifies the maintenance process of hydraulic oil tanks, reduces maintenance difficulty and time costs, improves work safety, and protects the cleanliness of the hydraulic system and the lifespan of the equipment.
Smart Images

Figure CN224174337U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydraulic device technology, and in particular to a flip-up hydraulic oil tank protection device and a hydraulic oil tank. Background Technology
[0002] Off-highway vehicles are widely used in large open-pit mining and construction projects. The hydraulic system is a crucial component ensuring the lifting and steering functions of these vehicles. However, in engineering designs, the hydraulic oil tank is often placed at the front of the cargo box, making it vulnerable to damage from material impacts. Furthermore, the top of the hydraulic oil tank typically houses the oil pump, filler port, various sensors, and oil lines, requiring operators to regularly add hydraulic oil and perform maintenance. Therefore, protecting the hydraulic oil tank and improving its maintenance convenience has become a significant challenge.
[0003] Common hydraulic oil tank protective covers typically employ a fixed, enclosed design, consisting of a simple cover plate installed on the hydraulic oil tank and secured with bolts. For example, the hydraulic oil tank described in patent CN212985640U uses an upper protective cover fixedly connected to the hydraulic oil tank. When workers add hydraulic oil to the tank, the upper protective cover needs to be disassembled, a time-consuming and labor-intensive process that significantly increases the difficulty of hydraulic oil tank maintenance. Furthermore, maintenance personnel often lack a stable and safe standing platform when maintaining the hydraulic oil tank, making it impossible for them to disassemble the protective cover independently. This increases the risk of the cover falling and injuring maintenance personnel, leading to safety accidents.
[0004] Therefore, a well-designed structure is urgently needed to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a flip-up hydraulic oil tank protection device and a hydraulic oil tank.
[0006] To achieve the above objectives, in a first aspect, this utility model provides a reversible hydraulic oil tank protection device, employing the following technical solution:
[0007] A flip-up hydraulic oil tank protection device includes a support frame, a protection unit, and a flip-up connecting mechanism. The support frame is fixedly connected to the hydraulic oil tank. Along the installation direction of the support frame, the first end of the support frame is higher than the second end of the support frame, and the second end of the support frame is higher than the top of the hydraulic oil tank. The protection unit is hinged to the support frame through the flip-up connecting mechanism, and the support frame and the protection unit form a protection space.
[0008] Furthermore, the flipping connection mechanism includes a connecting plate, which is disposed on the side of the protective unit near the hydraulic oil tank. The support frame is provided with a first connecting hole, and the connecting plate is provided with a second connecting hole. The first connecting hole and the second connecting hole are hinged together by a connecting shaft.
[0009] Furthermore, the hydraulic oil tank protection device also includes a limiting mechanism, which includes a first limiting hole disposed on the support frame and a second limiting hole disposed on the connecting plate.
[0010] Furthermore, the hydraulic oil tank protection device also includes a fixing component, and the support frame is connected to the protection unit through the fixing component.
[0011] Furthermore, the protective unit is provided with a circular hole for hydraulic oil filling and sensor wiring passage.
[0012] Furthermore, the protective unit includes a side plate and a top cover plate, the side plate being fixedly connected to the top cover plate, and the side plate bending and extending relative to the top cover plate towards the hydraulic oil tank.
[0013] Furthermore, the side panel is equipped with handrails.
[0014] Furthermore, the upper cover plate is inclined at a certain angle relative to the top of the hydraulic oil tank.
[0015] Furthermore, the middle part of the upper cover plate is set at a certain angle to the outer end of the upper cover plate near the side plate.
[0016] Secondly, this utility model provides a hydraulic oil tank, which adopts the following technical solution:
[0017] A hydraulic oil tank, including any of the aforementioned reversible protective devices.
[0018] The beneficial effects of this utility model are:
[0019] 1. By adopting a flip-up protective unit design, the protective unit can be hinged around the support frame, allowing operators to complete tasks such as hydraulic oil filling and equipment inspection without complete disassembly, greatly simplifying the maintenance process of the hydraulic oil tank and reducing maintenance difficulty and time costs.
[0020] 2. By setting a limiting mechanism, the opening and closing angle between the fixed protective unit and the support frame can be guaranteed, avoiding the risk of the protective unit suddenly slipping when in the open position, thus providing a safer working environment for operators. At the same time, this limiting method is simple, allowing for quick insertion and removal of the pin without the need for tools, improving the work efficiency of the operators.
[0021] 3. The protective unit design can also effectively prevent dust, stones and other debris from entering the hydraulic oil tank, ensuring the cleanliness and normal operation of the hydraulic system and extending the service life of the equipment.
[0022] 4. The support frame is installed at an angle to the hydraulic oil tank, so that when the protective unit is in the protective position, there is a certain angle between the protective unit and the top of the hydraulic oil tank. This prevents debris particles or dust from accumulating on the protective unit and also prevents rainwater from accumulating on the protective unit, reducing the risk of moisture entering the hydraulic oil tank and protecting the internal components from moisture damage. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0024] Figure 1 This is a three-dimensional structural diagram of the hydraulic oil tank protection device of this utility model when it is in the protection position;
[0025] Figure 2 This is a side view of the hydraulic oil tank protection device of this utility model when it is in the protection position.
[0026] Figure 3 This is a rear view schematic diagram of the hydraulic oil tank protection device of this utility model when it is in the protection position;
[0027] Figure 4 This is a three-dimensional structural diagram of the hydraulic oil tank protection device of this utility model when it is in the open position.
[0028] Figure 5 This is a schematic diagram of the structure of the protective unit of this utility model;
[0029] Figure 6 This is a schematic diagram of the support frame of this utility model;
[0030] Figure 7 For the present utility model Figure 3 Enlarged structural diagram at point A.
[0031] In the diagram, 100 is the support frame; 101 is the first connecting hole; 102 is the first limiting hole; 103 is the first fixing hole; 200 is the protective unit; 210 is the top cover plate; 220 is the side plate; 230 is the handrail; 201 is the second fixing hole; 300 is the flipping connection mechanism; 310 is the connecting plate; 301 is the second connecting hole; 302 is the second limiting hole; 400 is the hydraulic oil tank; 500 is the fixing component; and 600 is the round hole. Detailed Implementation
[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0033] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0034] Furthermore, the use of terms such as "first," "second," etc., in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0035] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0036] Furthermore, the technical solutions of the various embodiments of this application can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this application.
[0037] This utility model discloses a flip-up hydraulic oil tank protection device, including a support frame 100, a protection unit 200, and a flip-up connecting mechanism 300. The support frame 100 is fixedly connected to the hydraulic oil tank 400. Along the installation direction of the support frame 100, the first end of the support frame 100 is higher than the second end of the support frame 100, and the second end of the support frame 100 is higher than the top of the hydraulic oil tank 400. The protection unit 200 is hinged to the support frame 100 through the flip-up connecting mechanism 300, and the support frame 100 and the protection unit 200 form a protective space.
[0038] like Figures 1-4 As shown, in one embodiment of this utility model, the protective unit 200 provides protection for the hydraulic oil tank 400 and its components. Specifically, the protective unit 200 is rotatably connected to the support frame 100 via a flip-connecting mechanism 300, and the support frame 100 is fixedly connected to the upper side plate 220 of the hydraulic oil tank 400. The support frame 100, as the basic structure of the entire protective device, provides support and fixation for the protective unit 200. The protective unit 200 can be hinged around the support frame 100, allowing operators to complete tasks such as hydraulic oil filling and equipment inspection without complete disassembly.
[0039] When the protective unit 200 abuts against the support frame 100, the protective unit 200 and the support frame 100 form a protective space, and the protective unit 200 is in the protective position at this time. When the staff needs to inspect the hydraulic oil tank 400 or the oil pump, oil filling port, various sensors, oil pipelines and other equipment on the top of the hydraulic oil tank 400, they only need to rotate the protective unit 200 around the flipping connecting mechanism 300 to a specific angle, and the protective unit 200 and the top of the hydraulic oil tank 400 will form a certain angle. At this stage, the protective unit 200 is in the open position.
[0040] In addition, the vertical height of the hinged end of the support frame 100 and the protective unit 200 is less than the height of the support frame 100 away from the hinged end of the protective unit 200. As a result, when the protective unit 200 is in the protective position, there is a certain tilt angle between the protective unit 200 and the top of the hydraulic oil tank 400. The protective unit 200 can not only effectively prevent dust, stones and other debris from colliding with the hydraulic oil tank 400 and the equipment on top of it, but also ensure that after the protective unit 200 is impacted by debris, the debris will roll off with its tilt angle, preventing debris from accumulating on the protective unit 200. In addition, it also ensures that the protective unit 200 has good drainage performance to prevent rainwater from accumulating on the protective unit 200.
[0041] This utility model's flip-over hydraulic oil tank protection device has significant advantages over existing technologies. By employing a flip-over protection unit 200 design, the maintenance process of the hydraulic oil tank 400 is greatly simplified, reducing repair difficulty and time costs. Secondly, since the protection unit 200 can be flipped and secured without complete disassembly, it provides operators with a safer and more stable working environment, effectively preventing accidents. Finally, the design of the protection unit 200 effectively prevents dust, stones, and other debris from entering the hydraulic oil tank 400, ensuring the cleanliness and normal operation of the hydraulic system and extending the equipment's service life.
[0042] In one embodiment of the present invention, the flipping connection mechanism 300 includes a connecting plate 310, the connecting plate 310 is disposed on the side of the protective unit 200 near the hydraulic oil tank 400, the support frame 100 is provided with a first connecting hole 101, the connecting plate 310 is provided with a second connecting hole 301, and the first connecting hole 101 and the second connecting hole 301 are hinged by a connecting shaft.
[0043] like Figures 3-7 As shown, the flipping connection mechanism 300 achieves the flipping function of the protective unit 200 through the cooperation of the connecting plate 310, the first connecting hole 101, the second connecting hole 301, and the connecting shaft. The connecting plate 310 is located on the side of the protective unit 200 near the hydraulic oil tank 400. This layout not only optimizes space utilization but also ensures the stability of the protective unit 200 during the flipping process.
[0044] Specifically, the first connecting hole 101 on the support frame 100 is precisely aligned with the second connecting hole 301 on the connecting plate 310, and they are hinged together via a connecting shaft, allowing the protective unit 200 to rotate flexibly around the connecting shaft. By using a hinged fixing method, workers can easily complete tasks such as adding hydraulic oil, inspection, and maintenance without completely removing the protective unit 200, greatly simplifying the workflow, improving work efficiency, and enhancing operational safety and overall equipment reliability. Secondly, the connecting plate 310 is fixedly connected to the protective unit 200, and the connecting plate 310 is fixedly connected to the support frame 100 via a connecting shaft, preventing accidental detachment or positional displacement of the protective unit 200 during rotation, thus ensuring operational safety.
[0045] In one embodiment of the present invention, the hydraulic oil tank protection device further includes a limiting mechanism, which includes a first limiting hole 102 disposed on the support frame 100 and a second limiting hole 302 disposed on the connecting plate 310.
[0046] By setting a limit mechanism, the protective unit 200 can be ensured to remain stable in the open position. For example... Figure 5 , Figure 6 As shown, the limiting mechanism includes a first limiting hole 102 disposed on the support frame 100 and a second limiting hole 302 disposed on the connecting plate 310. When the protective unit 200 is flipped to the required angle, the operator can fix it by inserting a pin through the first limiting hole 102 and the second limiting hole 302, thereby ensuring that the protective unit 200 will not move accidentally during maintenance work and avoiding the risk of the protective unit 200 suddenly slipping off when in the open position, providing a safer working environment for the operator. At the same time, this limiting method is simple and does not require tools to quickly complete the insertion and removal of the pin, improving the work efficiency of the operator.
[0047] In one embodiment of the present invention, the hydraulic oil tank protection device further includes a fixing member 500, and the support frame 100 and the protection unit 200 are connected through the fixing member 500.
[0048] Since the support frame 100 and the protective unit 200 are installed in an inclined state, in order to avoid the large pressure on the hinge of the support frame 100 and the protective unit 200 when the protective unit 200 is in the protective position, a fixing member 500 is provided to firmly connect the support frame 100 and the protective unit 200, thereby dispersing the pressure at the flipping connection mechanism 300 and improving the stability of the overall structure.
[0049] It should be noted that this utility model does not limit the type of the fastener 500. The fastener 500 can take various forms, such as bolts, clamps, or other types of fasteners, to ensure a firm connection between the support frame 100 and the protective unit 200. Specifically, in one embodiment, the support frame 100 is provided with a first fixing hole 103, and the protective unit 200 is provided with a second fixing hole 201. The first fixing hole 103 and the second fixing hole 201 are connected by bolts.
[0050] In one embodiment of this utility model, the protective unit 200 is provided with a circular hole 600 for hydraulic oil filling and sensor wiring passage. By pre-reserving a dedicated circular hole 600, operators can complete hydraulic oil filling and sensor wiring connection / disconnection without completely disassembling the protective unit 200, simplifying the maintenance process and making it more convenient and efficient, greatly improving the efficiency of daily maintenance work; at the same time, it reduces the wear risk caused by frequent disassembly and reassembly of the protective unit 200, extending the equipment's service life. In addition, a sealing unit is provided on the outside of the circular hole 600. By setting the sealing unit, the hydraulic oil tank 400 and the equipment on top of the hydraulic oil tank 400 can be further protected.
[0051] It should be noted that this utility model does not limit the type of sealing unit. The sealing unit can be a rubber gasket, a sealing cap, or other forms of sealing measures.
[0052] In one embodiment of the present invention, the protective unit 200 includes a side plate 220 and an upper cover plate 210. The side plate 220 is fixedly connected to the upper cover plate 210, and the side plate 220 is bent and extended toward the hydraulic oil tank 400 relative to the upper cover plate 210.
[0053] like Figures 1-4 As shown, the bent and extended design of the side plate 220 relative to the top cover plate 210 allows the protective unit 200 to better adapt to the outer contour of the hydraulic oil tank 400, providing all-round protection for the hydraulic oil tank 400 and effectively preventing foreign objects such as stones and dirt from directly impacting the hydraulic oil tank 400. In addition, there are gaps between the top cover plate 210, the side plate 220 and the hydraulic oil tank 400, which ensures that the hydraulic system can maintain good heat dissipation and avoid failures caused by overheating.
[0054] In one embodiment of this utility model, the side panel 220 is provided with a handrail 230. By providing the handrail 230, operators can open or close the protective unit 200, adjust the angle of the protective unit 200, and perform other maintenance operations more easily and freely without having to find additional support points, thus improving work efficiency. In addition, when workers are performing operations such as adding hydraulic oil, inspecting or repairing equipment, the handrail 230 can provide additional support points for the operators, enhancing the safety and convenience of the workers when performing maintenance operations.
[0055] In one embodiment of the present invention, the upper cover plate 210 is inclined at a certain angle relative to the upper top of the hydraulic oil tank 400, and the middle part of the upper cover plate 210 is set at a certain angle to the outer end of the upper cover plate 210 near the side plate 220.
[0056] like Figure 3 As shown, by designing the upper cover plate 210 at an inclined angle and setting its middle part at a certain angle to the outer end near the side plate 220, rainwater and snow water can quickly flow away from the surface of the upper cover plate 210, making it less likely to accumulate. This reduces the risk of water entering the hydraulic oil tank 400 and protects the internal components from moisture damage. In addition, it helps to reduce the deposition of dust and other debris, maintain the cleanliness of the hydraulic system, and enhance the drainage and dustproof capabilities of the protective device.
[0057] This utility model also provides a hydraulic oil tank 400, which also includes the aforementioned reversible protective device.
[0058] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.
Claims
1. A reversible hydraulic oil tank protection device, characterized in that, include: Support frame (100), protective unit (200) and flip connection mechanism (300). The support frame (100) is fixedly connected to the hydraulic oil tank (400). Along the installation direction of the support frame (100), the first end of the support frame (100) is higher than the second end of the support frame (100), and the second end of the support frame (100) is higher than the top of the hydraulic oil tank (400). The protective unit (200) is hinged to the support frame (100) through the flip connection mechanism (300), and the support frame (100) and the protective unit (200) form a protective space; The flipping connection mechanism (300) includes a connecting plate (310), which is disposed on the side of the protective unit (200) near the hydraulic oil tank (400). The support frame (100) is provided with a first connecting hole (101), and the connecting plate (310) is provided with a second connecting hole (301). The first connecting hole (101) and the second connecting hole (301) are hinged by a connecting shaft. The hydraulic oil tank protection device also includes a limiting mechanism, which includes a first limiting hole (102) disposed on the support frame (100) and a second limiting hole (302) disposed on the connecting plate (310).
2. The reversible hydraulic oil tank protection device according to claim 1, characterized in that: The hydraulic tank protection device also includes a fixing component (500), and the support frame (100) is connected to the protection unit (200) through the fixing component (500).
3. The reversible hydraulic oil tank protection device according to any one of claims 1-2, characterized in that: The protective unit (200) is provided with a circular hole (600) for hydraulic oil filling and sensor wiring passage.
4. The reversible hydraulic oil tank protection device according to any one of claims 1-2, characterized in that: The protective unit (200) includes a side plate (220) and an upper cover plate (210). The side plate (220) is fixedly connected to the upper cover plate (210). The side plate (220) bends and extends relative to the upper cover plate (210) toward the hydraulic oil tank (400).
5. The reversible hydraulic oil tank protection device according to claim 4, characterized in that: The side panel (220) is provided with a handrail (230).
6. The reversible hydraulic oil tank protection device according to claim 4, characterized in that: The upper cover plate (210) is inclined at a certain angle relative to the upper top of the hydraulic oil tank (400).
7. The reversible hydraulic oil tank protection device according to claim 4, characterized in that: The middle part of the upper cover plate (210) is set at a certain angle to the outer end of the upper cover plate (210) near the side plate (220).
8. A hydraulic oil tank, characterized in that: Includes the reversible protective device as described in any one of claims 1-7.
Citation Information
Patent Citations
Upper protective cover for hydraulic oil tank and hydraulic station
CN212985640U