Gearbox oil changing device

Abstract

This utility model belongs to the technical field of transmission oil change equipment, and discloses a transmission oil change device, including: an internal pipeline; an oil inlet pipe, including a first oil outlet port connected to the transmission's oil inlet and a first oil inlet port connected to the internal pipeline; an oil outlet pipe, including a second oil inlet port connected to the transmission's oil outlet and a second oil outlet port connected to the internal pipeline; and an oil suction component capable of being inserted into the transmission's oil inlet or outlet is detachably installed on the first oil outlet port or the second oil inlet port. By providing a detachable oil suction component on the first oil outlet port of the oil inlet pipe or the second oil inlet port of the oil outlet pipe, when the transmission oil level is detected to be above the standard, only the oil suction component needs to be installed to perform the oil suction operation, ensuring the normal operation of the transmission hydraulic system; in addition, this structural design does not require large-scale modification of existing oil change devices, has low cost and is easy to operate, improving the practicality and reliability of the oil change device.

Description

Technical Field

[0001] This utility model relates to the technical field of transmission oil change equipment, and in particular to a transmission oil change device. Background Technology

[0002] Transmission fluid is a fluid specifically designed for use in transmissions. Under normal driving conditions, transmission fluid needs to be changed every predetermined mileage: every 120,000 kilometers under normal driving conditions, and every 60,000 kilometers under harsh driving conditions. Timely changes to transmission fluid help maintain the transmission's good mechanical performance and extend its lifespan.

[0003] Currently, transmission fluid is generally changed using a transmission fluid changer. In practice, this device typically includes a new fluid tank, an old fluid tank, internal piping, an inlet pipe, and an outlet pipe. One end of the inlet pipe connects to the internal piping, and the other end connects to the transmission fluid inlet. One end of the outlet pipe connects to the internal piping, and the other end connects to the transmission fluid outlet. The internal piping also connects to both the new and old fluid tanks. Additionally, the internal piping contains a pump, valves, and other components. By opening and closing these valves, the inlet and outlet fluid pathways are opened and closed, thus enabling automatic transmission fluid changes and cleaning.

[0004] The inventors discovered that after an automatic transmission fluid change via a transmission fluid exchange device, the transmission may accumulate excessive fluid due to factors such as residual old fluid, outdated equipment databases, equipment aging, or vehicle modifications. Excessive fluid can lead to risks such as hydraulic control failure, deteriorated lubrication and cooling, and abnormal wear of components. Furthermore, existing transmission fluid exchange devices are unable to quickly remove excessive fluid from the transmission. Utility Model Content

[0005] The main purpose of this invention is to provide a transmission oil change device that solves the technical problem of not being able to quickly draw out excess transmission oil when there is too much transmission oil in the transmission.

[0006] To achieve the aforementioned objectives, this utility model proposes a transmission oil change device for connecting to the transmission's oil inlet or outlet, comprising:

[0007] Internal piping;

[0008] The oil inlet pipe includes a first oil outlet port connected to the oil inlet of the gearbox, and a first oil inlet port connected to the built-in pipeline;

[0009] The oil outlet pipe includes a second oil inlet port connected to the oil outlet of the gearbox, and a second oil outlet port connected to the built-in pipeline;

[0010] The first oil outlet port or the second oil inlet port is detachably equipped with an oil suction component that can be inserted into the oil inlet or oil outlet of the gearbox.

[0011] Furthermore, the oil suction assembly includes a mounting base and a conduit; the diameter of the conduit is smaller than the diameter of the oil inlet pipe and the diameter of the oil outlet pipe;

[0012] The conduit is fixedly installed on the mounting base;

[0013] The mounting base can be detachably installed at the first oil outlet port or the second oil inlet port.

[0014] Furthermore, the catheter is a transparent catheter.

[0015] Furthermore, the catheter is made of a rigid material.

[0016] Furthermore, the transmission oil change device also includes a housing;

[0017] The oil inlet pipe and oil outlet pipe are located on the outside of the housing;

[0018] The built-in pipeline is located inside the housing;

[0019] The first oil inlet port of the oil inlet pipe and the second oil outlet port of the oil outlet pipe pass through the outer wall of the housing and are connected to the built-in pipeline.

[0020] Furthermore, the transmission fluid change device also includes a protective cover;

[0021] The protective cover is fixedly installed on the outer side wall of the box, and forms a cavity with the outer side wall facing downwards;

[0022] The first oil inlet port of the oil inlet pipe and the second oil outlet port of the oil outlet pipe pass through the outer wall of the box corresponding to the cavity and are connected to the built-in pipeline.

[0023] Furthermore, a sealing gasket is provided between the protective cover and the outer wall of the housing.

[0024] Furthermore, the transmission oil change device also includes a cable tie;

[0025] The oil inlet pipe and oil outlet pipe are wound around the strand frame.

[0026] Furthermore, the transmission oil change device also includes multiple storage brackets, which are used to detachably fix the oil inlet pipe and the oil outlet pipe;

[0027] The storage bracket is installed on the outer wall of the box.

[0028] Furthermore, the transmission oil change device also includes a moving wheel assembly;

[0029] The movable wheel assembly includes two first wheels and at least one second wheel, wherein the diameter of the first wheels is larger than the diameter of the second wheels;

[0030] The two first wheels are coaxially disposed on the bottom first side of the box body;

[0031] The second wheel is mounted on the bottom second side, opposite to the bottom first side of the box body, via a swivel wheel frame.

[0032] Beneficial effects:

[0033] This utility model discloses a transmission oil change device that effectively solves the problem of excessive transmission oil by installing a detachable oil suction component at the first oil outlet port of the oil inlet pipe or the second oil inlet port of the oil outlet pipe. When the transmission oil level exceeds the standard, there is no need to disassemble the transmission components; simply installing the oil suction component allows for oil extraction, avoiding the risk of hydraulic control failure due to excessive oil and ensuring the normal operation of the transmission hydraulic system. Simultaneously, it eliminates the potential for deterioration in lubrication and heat dissipation, enabling the transmission to maintain good heat dissipation and lubrication, reducing abnormal wear of components due to poor lubrication or insufficient heat dissipation, and extending the transmission's service life. Furthermore, this structural design does not require large-scale modifications to existing oil change devices; functional upgrades can be achieved simply by adding a detachable oil suction component, resulting in low cost and convenient operation, thus improving the practicality and reliability of the oil change device. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a gearbox oil change device according to an embodiment of the present invention;

[0035] Figure 2 This is an exploded structural diagram of an oil-absorbing component according to an embodiment of the present invention.

[0036] in:

[0037] 10-Oil inlet pipe; 11-First oil outlet port; 20-Oil outlet pipe; 21-Second oil inlet port; 30-Oil suction assembly; 31-Mounting base; 32-Conduit; 40-Box; 50-Protective cover; 60-Stranded cable holder; 70-Storage bracket; 81-First wheel; 82-Second wheel; 83-Wheel caster frame; 84-Brake assembly.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0040] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0041] 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, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Reference Figure 1This utility model provides a transmission oil change device for connecting to the transmission's oil inlet or outlet to change the transmission oil. The transmission oil change device includes: an internal pipeline (not shown in the figure); an oil inlet pipe 10, including a first oil outlet port 11 connected to the transmission's oil inlet and a first oil inlet port connected to the internal pipeline; an oil outlet pipe 20, including a second oil inlet port 21 connected to the transmission's oil outlet and a second oil outlet port connected to the internal pipeline; wherein, an oil suction component 30 capable of being inserted into the transmission's oil inlet or outlet is detachably installed on the first oil outlet port 11 or the second oil inlet port 21.

[0044] In this embodiment, the aforementioned built-in pipeline is the core channel component of the transmission oil change device. It connects the new oil tank and the old oil tank, and realizes the switching of the oil circuit and the delivery of oil through control elements such as pumps and valves (not shown in the figure). The first oil outlet port 11 of the oil inlet pipe 10 is used to connect with the oil inlet of the transmission, and the first oil inlet port is connected to the built-in pipeline to form a channel for new oil to be injected into the transmission; the second oil inlet port 21 of the oil outlet pipe 20 is connected to the oil outlet of the transmission, and the second oil outlet port is connected to the built-in pipeline to form a path for the old oil to be discharged.

[0045] In this embodiment, the valve can be configured to correspond at least to the inlet pipe 10, the outlet pipe 20, and two pipelines respectively connecting the new oil tank and the old oil tank. The pump body can have a forward working module and a reverse working module, thereby enabling the built-in pipeline to automatically control the specific delivery direction and path of the oil to achieve different oil circuit switching. When using the device, the user can choose either the inlet pipe 10 or the outlet pipe 20 to achieve oil suction or injection into the transmission, which is convenient to operate. When manufacturing the transmission oil change device, there is no need to label the inlet pipe 10 and the outlet pipe 20, saving costs. The suction component 30 can be connected to either the inlet pipe 10 or the outlet pipe 20 to achieve oil suction into the transmission. For ease of description, this utility model defines the pipeline that can inject new oil into the transmission when the corresponding pump body is working in the forward direction as the inlet pipe 10, and the pipeline that can discharge old oil from the transmission when the corresponding pump body is working in the forward direction as the outlet pipe 20. In fact, both the inlet pipe 10 and the outlet pipe 20 can achieve oil suction and oil discharge.

[0046] Understandably, the oil suction assembly 30 is detachably installed at the first oil outlet port 11 or the second oil inlet port 21. Its design purpose is to extract any excess oil that may be present in the transmission after an oil change operation. Specifically, when it is necessary to extract excess oil, the oil suction assembly 30 is installed on the corresponding port and inserted into the transmission's oil inlet or outlet (depending on the actual installation location). For example, if the oil suction assembly 30 is installed at the first oil outlet port 11, the pump body (not shown in the figure) with the built-in pipeline can work in reverse (the pump body works in the forward direction when adding oil), changing the oil addition to oil extraction. This creates a negative pressure in the oil suction assembly 30, thereby extracting the excess oil from the transmission and directing it into the new oil tank. Alternatively, the built-in pipeline can be connected to the old oil tank through a combination of opening and closing valves. Similarly, if the oil suction assembly 30 is installed at the second oil inlet port 21, the pump body (not shown in the figure) with the built-in pipeline can work normally to create negative pressure in the oil suction assembly 30, thereby drawing out excess oil from the transmission and directing it to the old oil tank. Alternatively, by combining the opening and closing of various valves, the built-in pipeline can be connected to the new oil tank, thus directing oil into the new oil tank. The specific direction of the oil drawn out by the oil suction assembly 30—whether it is directed to the new or old oil tank—can be controlled according to actual needs. For example, if the oil in the transmission is newly added and unused, it can be directed to the new oil tank; if the oil in the transmission has already been used, it can be directed to the old oil tank.

[0047] In this embodiment, an oil suction assembly 30 capable of being inserted into the oil inlet of the gearbox is detachably installed on the first oil outlet port 11 or the second oil inlet port 21. This allows the oil suction assembly 30 to be flexibly installed and removed according to actual needs without affecting the normal oil changing function of the oil changing device. The oil suction assembly 30 can be detachably connected to the first oil outlet port 11 or the second oil outlet port via threads, snaps, or other detachable methods, ensuring both stable installation and convenient disassembly.

[0048] The transmission oil change device of this embodiment effectively solves the problem of excessive oil in the transmission after the oil change operation by setting a detachable oil suction component 30 on the first oil outlet port 11 or the second oil inlet port 21. Specifically, when the oil level in the transmission is detected to exceed the standard, there is no need to disassemble the transmission components. Only the oil suction component 30 needs to be installed to perform the oil suction operation, avoiding the risk of hydraulic control failure caused by excessive oil and ensuring the normal operation of the transmission hydraulic system. At the same time, it eliminates the hidden danger of deterioration of lubrication and heat dissipation, enabling the transmission to maintain good heat dissipation performance and lubrication effect, reducing abnormal wear of components caused by poor lubrication or insufficient heat dissipation, and extending the service life of the transmission. In addition, this structural design does not require large-scale modification of existing oil change devices. Functional upgrades can be achieved simply by adding a detachable oil suction component 30, which is low-cost and easy to operate, improving the practicality and reliability of the oil change device.

[0049] Reference Figure 2 In one embodiment, the oil suction assembly 30 includes a mounting base 31 and a conduit 32; the conduit 32 is fixedly mounted on the mounting base 31; the diameter of the conduit 32 is smaller than the diameter of the oil inlet pipe 10 and the diameter of the oil outlet pipe 20; the mounting base 31 is detachably mounted on the first oil outlet port 11 or the second oil inlet port 21.

[0050] Understandably, due to factors such as residual old oil, outdated equipment database, equipment aging, or vehicle modifications, the oil level in the transmission often has only slight errors in actual use. Existing equipment typically uses the outlet pipe to drain waste oil and cannot effectively control the amount of oil drawn in. If operators adjust the oil level using the outlet pipe of existing transmission oil change devices, not only will they lack precision, but they may also increase the error in oil level measurement. However, in this invention, because the diameter of the conduit 32 is smaller than that of the inlet pipe 10 and the outlet pipe 20, the controllable oil level is more precise. Therefore, after the oil change operation is completed, it is only necessary to connect the mounting base 31 to the first outlet port 11 or the second inlet port 21, and then, in conjunction with the automated built-in piping of this equipment, automatically control the valves and pumps to switch between different oil circuits, thereby achieving micro-oil drawing from the transmission.

[0051] In this embodiment, the mounting base 31 is the basic component for connecting the first oil outlet port 11 or the second oil inlet port 21. Its shape matches the interface shape of the first oil outlet port 11 or the second oil inlet port 21, for example, by using an internal or external thread structure, so as to achieve a threaded connection with the first oil outlet port 11 or the second oil inlet port 21, ensuring sealing and stability after installation. The conduit 32 is fixedly mounted on the mounting base 31. One end of it is connected to the oil inlet pipe 10 or the oil outlet pipe 20 through the mounting base 31, and the other end is used to insert into the oil inlet or outlet of the gearbox to extract oil.

[0052] The conduit 32 can be fixed to the mounting base 31 by welding or using fasteners (such as bolts or clamps) to ensure that it will not loosen or fall off during oil extraction. The detachable connection between the mounting base 31 and the first oil outlet port 11 or the second oil inlet port 21 allows the oil suction assembly 30 to be installed or removed as needed. For example, during routine oil change operations, the oil suction assembly 30 is in a detached state, which does not affect the normal operation of the oil change device; and when oil extraction is required after the oil change, the oil suction assembly 30 can be installed onto the corresponding port.

[0053] The mounting base 31 is generally disc-shaped, with a threaded structure on its edge that matches the first oil outlet port 11. The conduit 32 is vertically fixed at the center of the mounting base 31, forming an integral oil suction unit. This structural design makes the installation and disassembly of the oil suction assembly 30 simple and quick, while ensuring smooth oil flow during the oil extraction process.

[0054] In one embodiment, the conduit 32 is a transparent conduit. The conduit 32 is made of a transparent material, such as transparent plastic (e.g., polycarbonate) or transparent glass. The design of the transparent conduit 32 allows the operator to visually observe the flow state, color, and impurities of the oil within the conduit 32 during the oil extraction process.

[0055] When the oil is drawn from the transmission and flows through the conduit 32, the operator can observe whether the oil flow is smooth to determine if the oil extraction process is normal and whether there are any problems such as pipe blockage. By observing the color of the oil, the operator can determine the cleanliness of the oil in the transmission. For example, new oil is usually lighter in color, while old oil is darker. If the color of the extracted oil is abnormal, it may indicate a fault inside the transmission. At the same time, the transparent conduit 32 also allows the operator to clearly see whether there are impurities such as metal shavings and gum in the oil. The presence of these impurities may indicate wear or other abnormalities in the transmission components, which helps to detect and deal with problems in a timely manner.

[0056] In one embodiment, the catheter 32 is a catheter made of a rigid material.

[0057] In this embodiment, the conduit 32 is made of a rigid material, such as rigid plastic (e.g., PVC, ABS) or metal (e.g., aluminum alloy, stainless steel). The rigid material conduit 32 has high rigidity and strength, and can maintain its shape stability when inserted into the oil inlet or outlet of the gearbox, and is not prone to bending, deformation or folding.

[0058] When the conduit 32 needs to be inserted into the gearbox, the rigid material conduit 32 can smoothly pass through the gearbox port and reach the predetermined oil extraction position due to its own rigidity, ensuring the smooth progress of the oil extraction operation. Compared with soft conduits, the rigid conduit 32 will not deform due to external pressure during insertion, thus ensuring that the oil flow channel remains unobstructed. At the same time, the rigid conduit 32 can maintain a stable position during oil extraction and will not shake due to oil flow or external vibration, avoiding collision or damage to the precision components inside the gearbox. Furthermore, the rigid material conduit 32 has high strength and durability, and can withstand the negative pressure and oil impact during the oil extraction process. It is not easily damaged, extending the service life of the conduit 32 and reducing maintenance costs. In addition, the rigid conduit 32 has a stable structure and does not require additional support devices during use, simplifying the structure of the device and facilitating operation and maintenance by operators.

[0059] In one embodiment, the end of the conduit 32 away from the mounting base 31 may be provided with a smooth transition structure. The smooth transition structure may be an arc-shaped structure without sharp corners and may be made of a softer material such as silicone. Since the length of the smooth transition structure is much smaller than the length of the conduit 32, it can further avoid scratching the inside of the gearbox while ensuring that the conduit 32 does not deform.

[0060] In one embodiment, the oil suction assembly 30 may be equipped with multiple conduits 32 of different lengths, or the conduits 32 may have a telescopic structure (such as a multi-layer snap-fit ​​sleeve or a threaded sleeve), thereby enabling the conduits 32 to extend into different predetermined oil suction positions.

[0061] In one embodiment, the above-mentioned gearbox oil change device further includes a housing 40; the oil inlet pipe 10 and the oil outlet pipe 20 are disposed on the outside of the housing 40; the internal pipeline is disposed inside the housing 40; the first oil inlet port of the oil inlet pipe 10 and the second oil outlet port of the oil outlet pipe 20 pass through the outer wall of the housing 40 and are connected to the internal pipeline.

[0062] In this embodiment, the housing 40 serves as the main support structure of the oil change device, accommodating and protecting internal components and organizing external pipelines. The housing 40 is typically made of metal or high-strength engineering plastic, possessing a certain strength and rigidity, and can protect the internal built-in pipelines, pump body, valves, and other components (not shown in the figure) from external impacts, compression, and corrosion from dust and moisture.

[0063] The oil inlet pipe 10 and the oil outlet pipe 20 are located on the outside of the housing 40, making it easy for operators to connect them to the oil inlet and outlet of the transmission. The first inlet port of the oil inlet pipe 10 passes through the outer wall of the housing 40 and connects to the internal pipeline, allowing new oil to be delivered from the internal pipeline to the transmission via the oil inlet pipe 10. Similarly, the second outlet port of the oil outlet pipe 20 passes through the outer wall of the housing 40 and connects to the internal pipeline, allowing the old oil discharged from the transmission to flow into the internal pipeline via the oil outlet pipe 20 and eventually into the old oil tank.

[0064] The internal space of the housing 40 is used to install built-in pipelines, new oil tanks, old oil tanks, pump bodies, valves, and other components. These components are installed inside the housing 40 through a reasonable layout and fixing method, forming a compact and orderly whole. The connection between the oil inlet pipe 10 and the oil outlet pipe 20 and the outer wall of the housing 40 is usually equipped with a sealing structure (not shown in the figure), such as a sealing ring, to prevent oil leakage and the entry of external dust and moisture into the housing 40.

[0065] The housing 40 is generally rectangular in shape. The oil inlet pipe 10 and the oil outlet pipe 20 extend from one side of the outer wall of the housing 40. The first oil inlet port and the second oil outlet port are connected to the built-in pipeline inside the housing 40 through the pipe passing through the outer wall. This structural design makes the internal structure of the device compact and the external pipeline layout clear, which is convenient for operation and maintenance.

[0066] In one embodiment, the above-mentioned gearbox oil change device further includes a protective cover 50; the protective cover 50 is fixedly installed on the outer side wall of the housing 40 and forms a cavity with the outer side wall facing downward; the first oil inlet port of the oil inlet pipe 10 and the second oil outlet port of the oil outlet pipe 20 pass through the outer side wall of the housing 40 corresponding to the cavity and are connected to the built-in pipeline.

[0067] In this embodiment, the protective cover 50 is installed on the outer wall of the housing 40, and its function is to protect the connection between the oil inlet pipe 10 and the oil outlet pipe 20 and the outer wall of the housing 40. The protective cover 50 is usually made of metal or hard plastic and has a certain strength and impact resistance. The protective cover 50 is fixedly connected to the outer wall of the housing 40, for example by bolts, clips, etc., forming a downward-opening cavity between the two.

[0068] The first inlet port of the oil inlet pipe 10 and the second outlet port of the oil outlet pipe 20 pass through the outer wall of the corresponding housing 40 and connect to the internal pipeline. That is, the connection port is located inside the cavity formed by the protective cover 50 and the outer wall of the housing 40. This design allows the connection port to be enclosed inside the cavity, and the downward-facing design can effectively prevent rainwater, dust, debris, etc. from falling into the cavity from above and causing contamination or damage to the connection port.

[0069] In one embodiment, a sealing gasket is provided between the protective cover 50 and the outer side wall of the housing 40.

[0070] In this embodiment, to further improve the sealing between the protective cover 50 and the outer wall of the housing 40, and to prevent rainwater, dust, and other external substances from entering the cavity, a sealing gasket (not shown in the figure) is provided between the protective cover 50 and the outer wall of the housing 40. The sealing gasket is usually made of elastic materials such as rubber or silicone, and its shape matches the contact area between the protective cover 50 and the outer wall of the housing 40.

[0071] When the protective cover 50 is fixedly installed on the outer wall of the housing 40, the sealing gasket is squeezed between the two, using its elastic deformation to fill the gap between the protective cover 50 and the outer wall of the housing 40, forming a good sealing effect. The sealing gasket can effectively prevent external liquids, gases and dust from entering the cavity through the connection between the protective cover 50 and the housing 40, thereby better protecting the connection ports of the oil inlet pipe 10 and the oil outlet pipe 20.

[0072] In one embodiment, the above-mentioned gearbox oil change device further includes a cable winch 60; the oil inlet pipe 10 and the oil outlet pipe 20 are wound around the cable winch 60.

[0073] In this embodiment, the stranding frame 60 is located on the outside of the housing 40 and is used to store and organize the oil inlet pipe 10 and the oil outlet pipe 20. The stranding frame 60 is usually made of metal or rigid plastic and has a certain strength and stability. Its structure can be frame type, roller type or other forms suitable for winding pipelines.

[0074] When not in use, the inlet pipe 10 and outlet pipe 20 can be neatly wound onto the cable tray 60. This avoids problems such as tangling and knotting caused by scattered pipe placement, saves space, makes the oil changing device look cleaner, and reduces the risk of wear and tear or breakage caused by tangling, thus extending the service life of the pipes. The cable tray 60 makes pipe storage and organization more convenient. Operators can easily remove the pipes from the cable tray 60 for connection during use and wind them back onto the cable tray 60 after use, improving operational convenience.

[0075] Combined with appendix Figure 1 and Figure 2 In this embodiment, the stranding frame 60 is fixedly installed on the outer side wall of the housing 40 and is in the shape of a frame. The oil inlet pipe 10 and the oil outlet pipe 20 can be wound on the frame of the stranding frame 60 in a certain order to ensure that the pipeline is wound neatly and firmly and will not easily fall off.

[0076] In one embodiment, the above-mentioned gearbox oil change device further includes a plurality of storage brackets 70, which are used to detachably fix the oil inlet pipe 10 and the oil outlet pipe 20, respectively; the storage brackets 70 are disposed on the outer side wall of the housing 40.

[0077] In this embodiment, the storage bracket 70 is installed on the outer wall of the housing 40 for detachably fixing the oil inlet pipe 10 and the oil outlet pipe 20. The storage bracket 70 is typically made of metal or plastic, and its structure can be a clamp type, a hook type, or other form suitable for fixing pipelines.

[0078] Each storage bracket 70 corresponds to a fixed section of oil inlet pipe 10 or oil outlet pipe 20. Operators can fix the pipes to or remove them from the storage bracket 70 as needed. For example, when using the pipes, they can be removed from the storage bracket 70 for connection; after use, the pipes can be tidied up and fixed to the storage bracket 70 to keep them neat. The detachable fixing method of the storage bracket 70 makes the installation and removal of pipes more flexible and convenient, and can adapt to different usage scenarios and pipe length requirements.

[0079] The storage bracket 70 is generally U-shaped or ring-shaped and is fixed to the outer wall of the housing 40 by bolts or other fasteners. The oil inlet pipe 10 and the oil outlet pipe 20 can pass through the opening of the storage bracket 70 and be fixed by clamps or other fasteners to ensure the stability of the pipeline on the storage bracket 70. Furthermore, the storage bracket 70 is mainly used to detachably fix the portion of the oil inlet pipe 10 near the first oil outlet port 11, and to detachably fix the portion of the oil outlet pipe 20 near the second oil inlet port 21. The aforementioned stranded cable holder 60 is mainly used to store the main body of the oil inlet pipe 10 and the oil outlet pipe 20; the two work together to better store the oil inlet pipe 10 and the oil outlet pipe 20.

[0080] In one embodiment, the above-mentioned gearbox oil change device further includes a movable wheel set; the movable wheel set includes two first wheels 81 and at least one second wheel 82, wherein the diameter of the first wheel 81 is larger than the diameter of the second wheel 82; the two first wheels 81 are coaxially arranged on the bottom first side of the housing 40; the second wheel 82 is arranged on the bottom second side opposite to the bottom first side of the housing 40 via a universal wheel bracket 83.

[0081] In this embodiment, the movable wheel assembly allows the oil changing device to be easily moved to adapt to different work locations. The movable wheel assembly consists of two first wheels 81 and at least one second wheel 82, wherein the diameter of the first wheel 81 is larger than the diameter of the second wheel 82. The two first wheels 81 are coaxially arranged on the bottom first side of the housing 40, forming a stable support; the second wheel 82 is arranged on the bottom second side of the housing 40 opposite to the first side via a universal wheel bracket 83. The universal wheel bracket 83 allows the second wheel 82 to rotate 360 ​​degrees in the horizontal direction, thereby achieving flexible steering.

[0082] The first wheel 81, with its larger diameter, provides better support and stability, while reducing the impact of uneven ground on the device during movement. The second wheel 82 is mounted via a caster frame 83, allowing the oil changing device to easily change direction during movement and improving its flexibility. Typically, to ensure the stability of the device, one or two second wheels 82 can be used. When two second wheels 82 are used, they are mounted at both ends of the second side of the bottom via caster frames 83, forming a more stable support.

[0083] Specifically, two first wheels 81 are coaxially mounted on one side of the bottom of the housing 40, and a second wheel 82 is mounted on the other side of the bottom of the housing 40 via a caster wheel bracket 83, forming a stable triangular support structure (when there is one second wheel 82) or a quadrilateral support structure (when there are two second wheels 82), ensuring the stability of the device when moving and stationary. In addition, a brake assembly 84 is provided on the caster wheel bracket 83 to lock the wheels after the device moves to a designated position, preventing the device from slipping.

[0084] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A transmission oil change device for connecting to the transmission oil inlet or outlet, characterized in that, include: Internal piping; The oil inlet pipe includes a first oil outlet port connected to the oil inlet of the gearbox, and a first oil inlet port connected to the built-in pipeline; The oil outlet pipe includes a second oil inlet port connected to the oil outlet of the gearbox, and a second oil outlet port connected to the built-in pipeline; The first oil outlet port or the second oil inlet port is detachably equipped with an oil suction component that can be inserted into the oil inlet or oil outlet of the gearbox.

2. The gearbox oil change device according to claim 1, characterized in that, The oil-absorbing assembly includes a mounting base and a conduit; The conduit is fixedly installed on the mounting base; the diameter of the conduit is smaller than the diameter of the oil inlet pipe and the diameter of the oil outlet pipe. The mounting base can be detachably installed at the first oil outlet port or the second oil inlet port.

3. The gearbox oil change device according to claim 2, characterized in that, The catheter is a transparent catheter.

4. The gearbox oil change device according to claim 3, characterized in that, The catheter is made of a rigid material.

5. The transmission oil change device according to any one of claims 1 to 4, characterized in that, It also includes the enclosure; The oil inlet pipe and oil outlet pipe are located on the outside of the housing; The built-in pipeline is located inside the housing; The first oil inlet port of the oil inlet pipe and the second oil outlet port of the oil outlet pipe pass through the outer wall of the housing and are connected to the built-in pipeline.

6. The gearbox oil change device according to claim 5, characterized in that, It also includes a protective shield; The protective cover is fixedly installed on the outer side wall of the box, and forms a cavity with the outer side wall facing downwards; The first oil inlet port of the oil inlet pipe and the second oil outlet port of the oil outlet pipe pass through the outer wall of the box corresponding to the cavity and are connected to the built-in pipeline.

7. The gearbox oil change device according to claim 6, characterized in that, A sealing gasket is provided between the protective cover and the outer wall of the box.

8. The gearbox oil change device according to claim 5, characterized in that, It also includes a stranding frame; The oil inlet pipe and oil outlet pipe are wound around the strand frame.

9. The gearbox oil change device according to claim 5, characterized in that, It also includes multiple storage brackets, which are used to detachably fix the oil inlet pipe and the oil outlet pipe; The storage bracket is installed on the outer wall of the box.

10. The gearbox oil change device according to claim 5, characterized in that, It also includes mobile wheel sets; The movable wheel assembly includes two first wheels and at least one second wheel, wherein the diameter of the first wheels is larger than the diameter of the second wheels; The two first wheels are coaxially disposed on the bottom first side of the box body; The second wheel is mounted on the bottom second side, opposite to the bottom first side of the box body, via a swivel wheel frame.

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