Lubricating oil filling equipment

Abstract

The utility model discloses lubricating oil filling equipment, which comprises a moving trolley, the adjusting part is vertically and adjustably arranged on the moving trolley; the oil passing pipe is connected to the adjusting part and can move synchronously with the adjusting part, the oil passing pipe is vertically arranged, and the bottom end of the oil passing pipe extends out of the bottom end of the adjusting part so as to be inserted into a filling opening of an oil storage barrel; the oil injection device comprises an oil injection hose which is connected to the oil passing pipe and used for injecting lubricating oil into the oil passing pipe. According to the lubricating oil filling equipment provided by the embodiment of the utility model, during filling, the oil passing pipe can be inserted into the filling opening of the oil storage barrel by vertically adjusting the adjusting part, the oil injection hose can inject lubricating oil into the oil storage barrel by injecting the lubricating oil into the oil passing pipe, an operator does not need to hold the oil injection hose all the time, the hands of the operator can be liberated, and the working efficiency is improved. The labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lubricating oil production technology, and in particular to a lubricating oil filling equipment. Background Technology

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and machinery to reduce friction and protect the machinery and processed parts. Its main functions include lubrication, auxiliary cooling, rust prevention, cleaning, sealing, and buffering. Any lubricating oil is used between two relatively moving objects to reduce friction and wear caused by contact. After production, lubricating oil needs to be bottled into storage tanks for subsequent transportation. In existing technologies, lubricating oil is typically filled using a pump and a hose. The pump's input is connected to a large tank storing the lubricating oil, and the pump's output is equipped with a hose. During filling, the operator pulls the hose to the vicinity of the storage tank, holds the end of the hose, and inserts it into the filling port of the storage tank before starting the pump. The disadvantage of this method is that the operator needs to hold the end of the hose continuously during the filling process; otherwise, the hose will move freely and easily separate from the storage tank, causing lubricating oil leakage. This increases the operator's workload, and lubricating oil can easily splash onto the operator when filling by holding the hose. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a lubricating oil filling device that can free the operator's hands during filling, reducing labor intensity.

[0004] The lubricating oil filling equipment according to an embodiment of the present utility model includes:

[0005] Mobile vehicle;

[0006] An adjustment unit, which is vertically adjustable, is disposed on the moving vehicle;

[0007] An oil passage pipe is connected to the adjusting part and can move synchronously with the adjusting part. The oil passage pipe is arranged vertically and its bottom end extends out of the bottom end of the adjusting part for insertion into the filling port of the oil storage tank.

[0008] The oiling device includes an oiling hose connected to the oil passage pipe for injecting lubricating oil into the oil passage pipe.

[0009] The lubricating oil filling equipment according to the embodiments of this utility model has at least the following beneficial effects:

[0010] In use, the mobile cart can be moved to an area with empty oil storage tanks. The adjustment unit is then raised to create space below it for the tank. The empty tank is then moved to the lower side of the adjustment unit, aligning its filling port with the oil inlet vertically. The adjustment unit is then lowered to insert the oil inlet into the filling port. Finally, the oil injection device is activated, injecting lubricating oil through the injection hose into the oil inlet and then into the oil storage tank. After filling, the injection device is turned off, and the adjustment unit is raised again to separate the oil inlet from the tank. The mobile cart is then moved aside to fill the next tank. With this setup, during filling, the oil inlet can be inserted vertically into the tank's filling port by adjusting the adjustment unit. The injection hose injects lubricating oil into the tank, eliminating the need for operators to hold the injection hose continuously, thus freeing their hands and reducing labor intensity.

[0011] According to some embodiments of the present invention, the mobile vehicle is provided with a mounting part, the adjusting part is vertically slidably mounted on the mounting part, and an elastic part is provided between the mounting part and the adjusting part, the elastic part being used to apply a downward elastic force to the adjusting part.

[0012] According to some embodiments of the present invention, the mounting part is provided with a mounting shaft, the mounting shaft is a cylindrical structure and extends vertically, the adjusting part is provided with a sliding hole and is sleeved on the mounting shaft through the sliding hole, so that the adjusting part can slide vertically relative to the mounting shaft and rotate around the center line of the mounting shaft.

[0013] According to some embodiments of the present invention, the adjusting part includes an adjusting plate and an adjusting seat. The sliding hole is disposed on the adjusting plate, and the adjusting plate is also provided with an adjusting groove. The adjusting groove extends vertically and is distributed radially along the mounting shaft. The adjusting seat is installed on the adjusting groove and can slide along the length direction of the adjusting groove. The oil pipe is connected to the adjusting seat and can move synchronously with the adjusting seat.

[0014] According to some embodiments of this utility model, the adjusting seat is provided with a vertical through threaded hole, and the outer wall of the oil pipe is provided with an external thread and is threadedly installed in the threaded hole.

[0015] According to some embodiments of the present invention, the adjusting seat includes an adjusting cylinder and two bosses. The adjusting cylinder is cylindrical and vertically inserted into the adjusting groove. The two bosses are respectively disposed at the upper and lower ends of the adjusting cylinder and located on the upper and lower sides of the adjusting plate to limit the vertical displacement of the adjusting cylinder relative to the adjusting plate.

[0016] According to some embodiments of the present invention, at least one of the bosses has an outer contour that is a regular hexagon.

[0017] According to some embodiments of the present invention, the mounting shaft is detachably connected to a limiting structure on the upper side of the adjusting part, the elastic part is configured as a compression spring and sleeved on the mounting shaft, and the two ends of the compression spring respectively abut against the limiting structure and the adjusting part.

[0018] According to some embodiments of the present invention, the limiting structure includes a washer and a limiting nut. The washer is sleeved on the mounting shaft and abuts against the top of the compression spring. The limiting nut is threaded to the mounting shaft and is located on the side of the washer away from the compression spring.

[0019] According to some embodiments of the present invention, the mobile vehicle is provided with a positioning groove, the positioning groove extends front to back and penetrates vertically, and the front end of the positioning groove is provided with an opening so that the oil storage tank can enter or exit the positioning groove from the front end of the positioning groove. The mobile vehicle is provided with a limiting part at the front end of the positioning groove, and the limiting part is used to lock the oil storage tank that enters the positioning groove into the positioning groove.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic diagram of the lubricating oil filling equipment in the present invention during the filling process.

[0023] Figure 2 yes Figure 1 An explosion diagram;

[0024] Figure 3 This is a schematic diagram of the connection structure between the oil pipe and the adjustment part in an embodiment of this utility model.

[0025] Icon labels:

[0026] Mobile cart 100, positioning groove 101, mounting part 110, mounting shaft 111, washer 112, limit nut 113, hinge seat 120, groove 130, limit rod 140;

[0027] Adjustment part 200, sliding hole 201, adjustment plate 202, adjustment seat 203, adjustment groove 204, threaded hole 205, adjustment cylinder 206, boss 207;

[0028] 300mm through the oil pipe;

[0029] Oil storage tank 400, filling port 410;

[0030] 500mm oil filling hose;

[0031] Elastic part 600. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] In existing technologies, lubricating oil is typically filled using a pump and a hose. The pump's input is connected to a large tank storing the lubricating oil, and the pump's output is equipped with a hose. During filling, the operator pulls the hose to the vicinity of the storage tank, holds the end of the hose, and inserts it into the filling port of the storage tank before starting the pump. The disadvantage of this method is that the operator needs to hold the end of the hose continuously during the filling process; otherwise, the hose will move freely and easily separate from the storage tank, causing lubricating oil leakage. This increases the operator's workload, and lubricating oil can easily splash onto the operator when filling by holding the hose.

[0037] Therefore, this utility model proposes a lubricating oil filling device, which can effectively improve the above-mentioned problems.

[0038] The lubricating oil filling equipment according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0039] Reference Figures 1 to 3As shown, a lubricating oil filling device according to an embodiment of the present invention includes: a mobile cart 100, an adjustment unit 200, an oil pipe 300, and an oil injection device.

[0040] The mobile cart 100 is equipped with wheels with braking function and a push-pull bracket for easy pushing and pulling by the operator.

[0041] The adjustment unit 200 is vertically adjustable on the moving vehicle 100, meaning that the height of the adjustment unit 200 can be adjusted relative to the moving vehicle 100.

[0042] The oil pipe 300 is connected to the adjusting part 200, and the oil pipe 300 can move synchronously with the adjusting part 200, that is, the oil pipe 300 can move vertically synchronously with the adjusting part 200. The oil pipe 300 is arranged vertically, and the bottom end of the oil pipe 300 extends out of the bottom end of the adjusting part 200. The part of the oil pipe 300 extending out of the bottom end of the adjusting part 200 is used to insert into the filling port 410 of the oil storage tank 400. In this embodiment, the oil pipe 300 is a rigid pipe. In addition, it should be noted that during the upward movement of the adjusting part 200, a space can be left on its lower side for placing the oil storage tank 400, that is, the oil storage tank 400 can be placed on the lower side of the adjusting part 200.

[0043] The oil injection device includes an oil injection hose 500, which is connected to an oil passage pipe 300 for injecting lubricating oil into the oil passage pipe 300. It should be noted that the oil injection device also includes a pump and an oil extraction pipe (not shown in the figure) for drawing lubricating oil from a large storage tank for delivery to the oil injection hose 500. Obviously, the pump can be fixed, and the oil extraction pipe can also be a rigid pipe.

[0044] In this embodiment of the lubricating oil filling equipment, the mobile cart 100 can be moved to an area where an empty oil storage tank 400 is placed. Then, the adjusting part 200 is adjusted upwards to leave space on the lower side of the adjusting part 200 to accommodate the oil storage tank 400. The empty oil storage tank 400 is then moved to the lower side of the adjusting part 200, and the filling port 410 of the oil storage tank 400 is vertically aligned with the oil passage pipe 300. The adjusting part 200 is then adjusted downwards to insert the oil passage pipe 300 into the filling port 410. Finally, the oil injection device is started, and lubricating oil is injected into the oil passage pipe 300 through the oil injection hose 500, thereby injecting it into the oil storage tank 400. After filling is completed, the oil injection device is turned off, and the adjusting part is adjusted upwards again. The adjustment unit 200 separates the oil pipe 300 from the oil storage tank 400, and then the moving cart 100 is moved to fill the next oil storage tank 400. With the above configuration, during filling, the oil pipe 300 can be inserted into the filling port 410 of the oil storage tank 400 by vertically adjusting the adjustment unit 200. The oil injection hose 500 can inject lubricating oil into the oil storage tank 400 by injecting lubricating oil into the oil pipe 300. The operator does not need to hold the oil injection hose 500 all the time, which can free the operator's hands, reduce labor intensity, and prevent lubricating oil from splashing onto the operator. In addition, by setting up the moving cart 100, the oil injection position can be flexibly changed, which is highly flexible.

[0045] It is conceivable that the oil injection hose 500 can be detachably connected to the oil passage pipe 300 via a pipe fitting.

[0046] It is conceivable that the oil injection hose 500 has a certain length so that the mobile vehicle 100 can be moved to different locations.

[0047] It is conceivable that a power structure such as a hydraulic cylinder, pneumatic cylinder, or telescopic motor can be installed on the mobile vehicle 100, and the adjustment unit 200 can be connected to the output end of the power structure, so that the adjustment unit 200 can be adjusted vertically; of course, other structural forms can also be used to achieve this.

[0048] For example, in some embodiments of this utility model, reference is made to Figure 1 and Figure 2As shown, the mobile vehicle 100 is provided with a mounting part 110, and an adjusting part 200 is vertically slidably mounted on the mounting part 110. An elastic part 600 is provided between the mounting part 110 and the adjusting part 200. The elastic part 600 is used to apply a downward elastic force to the adjusting part 200 so that the oil pipe 300 can be inserted into the filling port 410 of the oil storage tank 400 and kept in the state of being inserted into the filling port 410, preventing the oil pipe 300 from moving upward. When it is necessary to adjust the adjusting part 200 upward, an upward external force greater than the elastic force of the elastic part 600 can be applied to the adjusting part 200 so that the adjusting part 200 overcomes the elastic force of the elastic part 600 and moves upward. Afterward, when adjusting the adjusting part 200 downward, it is only necessary to remove the external force, and the adjusting part 200 can move downward under the action of the elastic part 600. The structure is simple and easy to operate, and the manufacturing cost is low.

[0049] Reference Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the mounting part 110 is provided with a mounting shaft 111, which is a cylindrical structure and extends vertically. The adjusting part 200 is provided with a sliding hole 201 and is sleeved on the mounting shaft 111 through the sliding hole 201, so that the adjusting part 200 can slide vertically relative to the mounting shaft 111 and rotate around the center line of the mounting shaft 111.

[0050] Understandably, after filling, the oil pipe 300 needs to be separated from the oil storage tank 400. If the adjusting part 200 can only move vertically, after separating the oil pipe 300 from the oil storage tank 400, the operator needs to continuously apply force to the adjusting part 200 to keep the oil pipe 300 separated from the oil storage tank 400. Then, the oil storage tank 400 needs to be separated from the moving cart 100 by moving the moving cart 100 or moving the oil storage tank 400. This would cause the operator to... The labor intensity is high; however, by setting up the above structure, after filling, the adjusting part 200 can be adjusted upwards to pull the oil pipe 300 out of the filling port 410. Then, the adjusting part 200 can be rotated to move the adjusting part 200 and the oil pipe 300 away from the upper side of the oil storage tank 400. After that, the operator does not need to apply force to the adjusting part 200, and can free their hands to move the moving cart 100 or the oil storage tank 400 to separate the two. This is not only convenient to operate, but also reduces labor intensity. Of course, after filling, the weight of the oil storage tank 400 will be relatively large, so the moving cart 100 is usually moved to separate the moving cart 100 from the oil storage tank 400.

[0051] Based on the above embodiments, during filling, the empty oil storage tank 400 can be placed on the mobile vehicle 100 first, then the adjusting part 200 is adjusted upward and the adjusting part 200 is rotated at the same time, so that the oil pipe 300 moves to the upper side of the oil storage tank 400, then the filling port 410 of the oil storage tank 400 is vertically aligned with the oil pipe 300, then the external force applied to the adjusting part 200 is removed, so that the oil pipe 300 is inserted downward into the filling port 410 under the action of the elastic part 600.

[0052] Reference Figures 1 to 3 As shown, in some embodiments of this utility model, the adjusting part 200 includes an adjusting plate 202 and an adjusting seat 203. A sliding hole 201 is provided on the adjusting plate 202, and an adjusting groove 204 is also provided on the adjusting plate 202. The adjusting groove 204 extends vertically and is distributed radially along the mounting shaft 111. The adjusting seat 203 is installed on the adjusting groove 204 and can slide along the length direction of the adjusting groove 204, that is, the adjusting seat 203 can move relative to the mounting shaft 111 radially. Obviously, the adjusting seat 203 can also move vertically and rotate synchronously with the adjusting plate 202. The oil pipe 300 is connected to the adjusting seat 203 and can move synchronously with the adjusting seat 203, that is, the oil pipe 300 can move relative to the mounting shaft 111 radially. In this way, the oil pipe 300 has a higher degree of freedom and can be more conveniently aligned vertically with the filling port 410 of the oil storage tank 400, which is highly flexible.

[0053] Reference Figure 2 As shown, in some embodiments of this utility model, the adjusting seat 203 is provided with a vertical through threaded hole 205, and the outer wall of the oil pipe 300 is provided with an external thread and is threadedly installed in the threaded hole 205, so as to realize the detachable connection between the oil pipe 300 and the adjusting seat 203, which facilitates the disassembly and assembly of the oil pipe 300.

[0054] Additionally, it is understandable that the top of the filling port 410 of the oil storage tank 400 is usually lower than the top of the oil storage tank 400. That is, when the adjusting part 200 is lowered, it will be restricted by the top of the oil storage tank 400. If the oil pipe 300 is not inserted into the filling port 410 when the adjusting part 200 abuts against the top of the oil storage tank 400, the height difference between the bottom end of the oil pipe 300 and the bottom end of the adjusting part 200 can be changed by changing the threaded engagement position between the oil pipe 300 and the adjusting seat 203, so as to ensure that the oil pipe 300 can be inserted into the filling port 410.

[0055] Reference Figure 2 and Figure 3As shown, in some embodiments of this utility model, the adjusting seat 203 includes an adjusting cylinder 206 and two protrusions 207. The adjusting cylinder 206 is cylindrical and vertically inserted into the adjusting groove 204. The two protrusions 207 are respectively disposed at the upper and lower ends of the adjusting cylinder 206 and respectively located on the upper and lower sides of the adjusting plate 202 to limit the vertical displacement of the adjusting cylinder 206 relative to the adjusting plate 202. By setting the cylindrical adjusting cylinder 206, the adjusting seat 203 can rotate around its own center line. Thus, when the adjusting plate 202 rotates, the adjusting seat 203 can slide along the adjusting seat 203 while also rotating on its own axis, preventing the oil injection hose 500 connected to the oil pipe 300 from twisting, thereby protecting the oil injection hose 500.

[0056] Reference Figure 2 As shown, in some embodiments of this utility model, at least one boss 207 has an outer contour of regular hexagon, so that the operator can easily change the threaded engagement position between the adjusting seat 203 and the oil pipe 300 by turning the adjusting seat 203 with a wrench.

[0057] Reference Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the mounting shaft 111 is detachably connected to the upper side of the adjusting part 200 with a limiting structure, and the elastic part 600 is configured as a compression spring and sleeved on the mounting shaft 111. The two ends of the compression spring abut against the limiting structure and the adjusting part 200 respectively, thereby applying a downward elastic force to the adjusting part 200. The structure is simple and practical. In addition, by setting a detachable limiting structure, the adjusting part 200 and the compression spring can be easily disassembled and assembled.

[0058] Specifically, the bottom end of the compression spring abuts against the upper surface of the adjusting plate 202.

[0059] Reference Figure 1 and Figure 2 As shown, in some embodiments of this utility model, the limiting structure includes a washer 112 and a limiting nut 113. The washer 112 is sleeved on the mounting shaft 111 and abuts against the top of the compression spring. The limiting nut 113 is threaded to the mounting shaft 111 and is located on the side of the washer 112 away from the compression spring. The structure is simple and easy to assemble and disassemble.

[0060] It is conceivable that the mounting shaft 111 can be set as a two-section stepped shaft, with the upper end being smaller and the lower end being larger. The shaft section with the smaller upper end is provided with an external thread to install the limit nut 113, and the washer 112 is also fitted on the shaft section with the smaller upper end.

[0061] Reference Figure 1 and Figure 2As shown, in some embodiments of this utility model, the mobile vehicle 100 is provided with a positioning groove 101, which extends front to back and penetrates vertically. The front end of the positioning groove 101 is open so that the oil storage tank 400 can enter or exit the positioning groove 101 from the front end. The mobile vehicle 100 is provided with a limiting part at the front end of the positioning groove 101. The limiting part is used to lock the oil storage tank 400 that enters the positioning groove 101 into the positioning groove 101. In this way, the displacement of the oil storage tank 400 relative to the mobile vehicle 100 can be limited, which makes it easier for the oil pipe 300 to align with the filling port 410 of the oil storage tank 400 and can improve the stability during the filling process.

[0062] In some specific embodiments, the mobile vehicle 100 is provided with a hinge seat 120 and a groove 130 on the left and right sides of the positioning groove 101, respectively. Both the hinge seat 120 and the groove 130 are higher than the positioning groove 101. The bottom end of the groove 130 is closed. The limiting part includes a limiting rod 140. One end of the limiting rod 140 is hinged to the hinge seat 120, and the hinge axis extends back and forth. The limiting rod 140 can rotate to partially embed itself into the groove 130, thereby blocking the oil tank 400 located in the positioning groove 101 from the front end of the positioning groove 101. The limiting rod 140 can also rotate to the top of the positioning groove 101, thereby allowing the oil tank 400 to detach from the front end of the positioning groove 101.

[0063] The method of using the lubricating oil filling equipment according to a specific embodiment of this utility model is as follows:

[0064] In use, the mobile cart 100 can be moved to the area where an empty oil storage tank 400 is placed. Then, the limiting rod 140 is rotated to a position above the positioning groove 101, and the adjusting part 200 is rotated to the same position. The empty oil storage tank 400 is then moved into the positioning groove 101. The limiting rod 140 is then rotated to partially embed into the groove 130 to limit the oil storage tank 400 within the positioning groove 101. The adjusting plate 202 is then adjusted upwards and rotated simultaneously to move the oil pipe 300 to the upper side of the oil storage tank 400. While rotating the adjusting plate 202, the adjusting seat 203 slides along the adjusting groove 204, allowing the oil pipe 300 to connect with the filling port 41 of the oil storage tank 400. Align the oil pipe vertically, then remove the external force, allowing the oil pipe 300 to be inserted downwards into the filling port 410. Finally, start the oil injection device and inject lubricating oil into the oil pipe 300 through the oil injection hose 500, which then injects the oil into the oil storage tank 400. After filling, close the oil injection device and rotate the limit rod 140 to the position above the positioning groove 101. Then, adjust the adjusting plate 202 upwards to pull the oil pipe 300 out of the filling port 410. Then, rotate the adjusting plate 202 to move the adjusting part 200 and the oil pipe 300 away from the upper side of the oil storage tank 400. After that, the operator no longer needs to apply force to the adjusting plate 202 and can free their hands to move the moving cart 100 to remove the oil storage tank 400 from the positioning groove 101, thus separating the two.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this specification.

[0066] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A lubricating oil filling device, characterized in that, include: Mobile vehicle; An adjustment unit, which is vertically adjustable, is disposed on the moving vehicle; An oil passage pipe is connected to the adjusting part and can move synchronously with the adjusting part. The oil passage pipe is arranged vertically and its bottom end extends out of the bottom end of the adjusting part for insertion into the filling port of the oil storage tank. The oiling device includes an oiling hose connected to the oil passage pipe for injecting lubricating oil into the oil passage pipe.

2. The lubricating oil filling equipment according to claim 1, characterized in that: The mobile vehicle is provided with a mounting part, and the adjustment part is vertically slidably mounted on the mounting part. An elastic part is provided between the mounting part and the adjustment part, and the elastic part is used to apply a downward elastic force to the adjustment part.

3. The lubricating oil filling equipment according to claim 2, characterized in that: The mounting part is provided with a mounting shaft, which is a cylindrical structure and extends vertically. The adjusting part is provided with a sliding hole and is sleeved on the mounting shaft through the sliding hole, so that the adjusting part can slide vertically relative to the mounting shaft and rotate around the center line of the mounting shaft.

4. The lubricating oil filling equipment according to claim 3, characterized in that: The adjustment part includes an adjustment plate and an adjustment seat. The sliding hole is provided on the adjustment plate, and the adjustment plate is also provided with an adjustment groove. The adjustment groove extends vertically and is distributed radially along the mounting shaft. The adjustment seat is installed on the adjustment groove and can slide along the length direction of the adjustment groove. The oil pipe is connected to the adjustment seat and can move synchronously with the adjustment seat.

5. The lubricating oil filling equipment according to claim 4, characterized in that: The adjusting seat is provided with a vertical through threaded hole, and the outer wall of the oil pipe is provided with an external thread and is threaded into the threaded hole.

6. The lubricating oil filling equipment according to claim 5, characterized in that: The adjusting seat includes an adjusting cylinder and two protrusions. The adjusting cylinder is cylindrical and vertically inserted into the adjusting groove. The two protrusions are respectively located at the upper and lower ends of the adjusting cylinder and on the upper and lower sides of the adjusting plate to limit the vertical displacement of the adjusting cylinder relative to the adjusting plate.

7. The lubricating oil filling equipment according to claim 6, characterized in that: At least one of the bosses has an outer contour that is a regular hexagon.

8. The lubricating oil filling equipment according to claim 3, characterized in that: The mounting shaft is detachably connected to a limiting structure on the upper side of the adjusting part. The elastic part is configured as a compression spring and sleeved on the mounting shaft. The two ends of the compression spring abut against the limiting structure and the adjusting part, respectively.

9. The lubricating oil filling equipment according to claim 8, characterized in that: The limiting structure includes a washer and a limiting nut. The washer is sleeved on the mounting shaft and abuts against the top of the compression spring. The limiting nut is threaded to the mounting shaft and is located on the side of the washer away from the compression spring.

10. The lubricating oil filling equipment according to claim 3, characterized in that: The mobile vehicle is provided with a positioning groove that extends front to back and penetrates vertically. The front end of the positioning groove is open so that the oil storage tank can enter or exit the positioning groove from the front end. The mobile vehicle is provided with a limiting part at the front end of the positioning groove, which is used to lock the oil storage tank that has entered the positioning groove inside the positioning groove.

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