Automobile parts storage rack

Abstract

This application relates to the field of automotive parts technology, specifically an automotive parts storage rack. The support frame assembly includes a base, a support plate, and an oil drain plate. Storage brackets are rotatably mounted inside the support plate, and the storage brackets have several sets of storage racks. Each storage rack includes a storage slot and a support. The storage slot has an open top and is rotatably mounted inside the support on both sides. The bottom of the storage slot uses a metal filter. An oil collection slot is formed at the bottom of the support, and an oil outlet pipe is located on the side of the oil collection slot. The oil collection assembly includes an oil collection channel and a linkage mechanism. The oil collection channel is annularly distributed within the oil drain plate, and the inner side of the oil drain plate has a circumferential array of collection through holes. The side of the oil drain plate near the storage rack has an annular guide groove, and the side with the collection through holes has a positioning annular groove. The linkage mechanism includes a sliding tube with an arc-shaped outer surface, and a spring on the oil outlet pipe. This application improves the convenience and cleanliness of oil recovery while ensuring the systematic nature and efficiency of parts storage.

Description

Technical Field

[0001] This application relates to the field of automotive parts technology, and in particular to an automotive parts storage rack. Background Technology

[0002] Automotive parts storage racks are devices specifically designed for organizing and storing automotive parts. They typically have multiple levels or compartments, enabling the categorization and storage of different types of parts, improving space utilization and work efficiency. They help repair shops and parts warehouses systematically manage parts, making them easy to access, preventing damage, and ensuring a clean and orderly working environment.

[0003] Chinese Patent CN222945532U discloses an automotive parts storage rack, including a bottom support plate for supporting the rack. Trapezoidal support plates are fixedly connected to both sides of the top of the bottom support plate. A rotating rod is rotatably connected inside the trapezoidal support plate. Support polygonal plates are fixedly connected to both sides of the outer side of the rotating rod. Multiple support rods connect the inner sides of the polygonal support plates, and rotating support sleeves are rotatably connected to the outer sides of each support rod. A storage frame is provided inside the rotating support sleeve. This invention facilitates the retrieval of small parts by workers, allows for the separate organization of small parts for easy finding, and absorbs oil from the surface of the parts, preventing direct contact with the surface of the stored items, facilitating cleaning and ensuring convenient subsequent use.

[0004] In the existing technology, an oil-absorbing sleeve is used to absorb engine oil, avoiding direct contact between the oil and the container. However, after the oil-absorbing sleeve is full of oil, it is necessary to remove the entire container, replace it with a new oil-absorbing sleeve, and then put it back, which is cumbersome and inconvenient. Utility Model Content

[0005] In order to overcome the problems existing in the prior art, this application provides an automotive parts storage rack.

[0006] The automotive parts storage rack provided in this application adopts the following technical solution: An automotive parts storage rack includes a support frame assembly. The support frame assembly includes a base and integrally formed support plates and oil drain plates on both sides of the base. Storage brackets are rotatably mounted inside the support plates. Several sets of storage racks are arranged circumferentially on the storage racks. Each storage rack includes a storage slot and a support. The storage slot has an open top and is rotatably mounted inside the support on both sides. The bottom of the storage slot uses a metal filter. An oil collection slot is formed at the bottom of the support, and an oil outlet pipe is formed on the side of the oil collection slot. An oil collection assembly includes an oil collection channel and a linkage mechanism at the oil outlet pipe. The oil collection channel is annular along the circumference of the oil drain plate. The oil drain plate is distributed within the oil drain plate, and the inner circumferential array of the oil drain plate has collection through holes that connect the oil collection channel and the oil outlet pipe. The side of the oil drain plate near the storage rack has an annular guide groove corresponding to the oil collection channel. The collection through holes pass through the annular guide groove and are arranged in a circumferential array on it. The side of the collection through hole located at the bottom of the annular guide groove has a positioning ring groove. The linkage mechanism includes a sliding tube fitted on the oil outlet pipe. The outer side of the sliding tube adopts an arc-shaped structure that matches the cross-section of the annular guide groove and the positioning ring groove. A spring is fitted on the oil outlet pipe to connect the bracket and the sliding tube. The spring makes the sliding tube always tend to move towards the positioning ring groove.

[0007] Furthermore, the top of the storage rack's support is rotatably connected to the inner side of the storage rack via a positioning shaft. The positioning shaft is fixedly installed on the storage rack, and a limiting nut is fitted onto the end of the positioning shaft away from the storage rack to limit the support's position on the positioning shaft. An operating handle corresponding to the storage rack is fixedly installed on the outer side of the storage rack. The support adopts a through-type structure on both sides, with the lower half of the storage slot rotatably connected to the inner side of the support via rotating shafts on both sides. A limiting plate is provided on one side of the support, and a first magnetic block is provided inside the limiting plate. A corresponding second magnetic block is provided on the storage slot. Limiting rods are also provided on both sides of the storage slot, and an arc-shaped groove corresponding to the limiting rod is provided on the inner side of the support. The arc-shaped groove can limit the rotation angle of the storage slot. The arc-shaped grooves are distributed in a circle along the axis of the rotating shaft, and a handle is also provided on the side of the storage slot away from the second magnetic block.

[0008] Furthermore, the bottom of the oil collection channel is connected to an oil drain pipe. The cross-section of the oil collection channel adopts a rectangular structure, and the inner top and bottom surfaces of the oil collection channel are provided with arc-shaped grooves to facilitate the flow of oil.

[0009] Furthermore, an oil baffle is installed at the outlet end of the sliding tube. A rotating shaft, rotatably connected to the sliding tube, is provided along the horizontal diameter of the oil baffle. The oil baffle is sealed to the inner surface of the sliding tube by sealing rings. Rotation of the oil baffle along the rotating shaft opens and closes the outlet of the sliding tube. The top inner side of the oil baffle is connected to the outlet end of the oil outlet pipe via a telescopic rod. The two ends of the telescopic rod are hinged to the oil baffle and the oil outlet pipe, respectively. When the sliding tube is engaged with the annular guide groove, the telescopic rod reaches its maximum extension distance. The inner surface of the positioning ring groove has an arc-shaped structure, and the free end of the sliding tube, fully inserted into the positioning ring groove, is located within the oil collection channel. Rotation of the storage bracket allows the sliding tube to switch between the positioning ring groove and the annular guide groove.

[0010] In summary, this application includes at least one of the following beneficial technical effects: 1. This application uses a metal filter at the bottom of the storage tank in conjunction with an oil collection tank at the bottom of the bracket to quickly separate and collect the oil on the surface of the parts. It avoids oil residue pollution without relying on an oil adsorption sleeve, thus fundamentally eliminating the need for frequent replacement of the adsorption components. 2. This application, through the coordinated design of the oil collection component and the linkage mechanism, enables the sliding tube to switch between the positioning ring groove and the annular guide groove when the storage rack rotates. Combined with the elastic force of the spring and the sealing and opening structure of the oil baffle, it can achieve precise docking and sealing of the oil collection channel through the engagement of the sliding tube and the positioning ring groove in the storage state, and can automatically cut off the oil passage when rotating and switching the storage rack. With the oil collection channel with annular distribution and arc-shaped groove in the oil drain plate, it ensures that the oil is efficiently collected and discharged through the oil drain pipe, which greatly improves the convenience and cleanliness of oil recycling. 3. The storage rack in this application achieves a circumferential array distribution through a positioning shaft, and can be flexibly rotated and switched with the operating handle. The storage slots achieve adjustable angle and stable positioning through the structure of rotating shaft, magnetic block and limit rod, which makes it convenient for staff to quickly retrieve parts. Combined with the classification design of multiple independent storage units, the systematicness and access efficiency of parts storage are further improved, and the overall optimization of parts storage, oil handling and operation convenience is achieved. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an automotive parts storage rack. Figure 2 This is an exploded view of a car parts storage rack; Figure 3 This is a schematic diagram of the opening mechanism of the storage shelf; Figure 4 This is a schematic diagram of the back structure of the storage rack; Figure 5 This is an exploded view of the linkage mechanism on the storage rack; Figure 6 yes Figure 5 Enlarged view of the central linkage mechanism; Figure 7 This is an exploded view of a single storage rack within an automotive parts storage system. Figure 8 yes Figure 7 Enlarged view of point A in the middle.

[0012] Explanation of reference numerals in the attached drawings: 1. Support frame assembly; 11. Base; 12. Support plate; 121. Storage bracket; 1211. Positioning shaft; 1212. Limiting nut; 1213. Operating handle; 13. Oil drain plate; 131. Collection through hole; 132. Annular guide groove; 133. Positioning ring groove; 2. Storage rack; 21. Storage slot; 211. Metal filter screen; 212. Rotating shaft; 213. Second magnetic block; 214. 1. Handle; 215. Limiting rod; 22. Bracket; 221. Oil collection tank; 222. Oil outlet pipe; 2221. Spring; 223. Limiting plate; 2231. First magnetic block; 224. Arc groove; 3. Oil collection assembly; 31. Oil collection channel; 311. Oil drain pipe; 32. Linkage mechanism; 321. Sliding tube; 3211. Oil baffle; 3212. Rotating shaft; 3213. Telescopic rod. Detailed Implementation

[0013] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0014] This application discloses an automotive parts storage rack.

[0015] Reference Figures 1 to 8An automotive parts storage rack includes a support frame assembly 1, which includes a base 11 and integrally formed support plates 12 and an oil drain plate 13 on both sides of the base 11. A storage bracket 121 is rotatably mounted inside the support plate 12. Several sets of storage racks 2 are arranged circumferentially on the storage bracket 121. Each storage rack 2 includes a storage slot 21 and a support 22. The storage slot 21 has an open top and is rotatably mounted inside the support 22 on both sides. The bottom of the storage slot 21 uses a metal filter screen 211. An oil collection slot 221 is formed at the bottom of the support 22, and an oil outlet pipe 222 is formed on the side of the oil collection slot 221. An oil collection assembly 3 includes an oil collection channel 31 and a linkage mechanism 32 at the oil outlet pipe 222. The oil collection channel 31 is circumferentially distributed along the oil drain plate 13. Inside, the inner side of the oil drain plate 13 has a circumferential array of collection through holes 131 that connect the oil collection channel 31 and the oil outlet pipe 222; the side of the oil drain plate 13 near the storage rack 2 has an annular guide groove 132 corresponding to the oil collection channel 31, the collection through holes 131 pass through the annular guide groove 132 and are arranged in a circumferential array on it, wherein the side of the collection through hole 131 located at the bottom of the annular guide groove 132 has a positioning ring groove 133; the linkage mechanism 32 includes a sliding tube 321 fitted on the oil outlet pipe 222, wherein the outer side of the sliding tube 321 adopts an arc structure that is adapted to the cross section of the annular guide groove 132 and the positioning ring groove 133, and a spring 2221 connecting the bracket 22 and the sliding tube 321 is fitted on the oil outlet pipe 222, the spring 2221 makes the sliding tube 321 always have a tendency to move towards the positioning ring groove 133. In use, first rotate the storage bracket 121 inside the support plate 12, which will drive the storage rack 2 in the circular array on it to rotate. During this process, the sliding tube 321 fitted on the oil outlet pipe 222 will move with the storage bracket 121 and slide from the positioning ring groove 133 in the annular guide groove 132 of the oil drain plate 13 into the annular guide groove 132, and the spring 2221 will be compressed. After the target storage rack 2 rotates to the appropriate position, the spring 2221 resets and pushes the sliding tube 321 to re-embed the corresponding positioning ring groove 133, so that the sliding tube 321 is aligned with the collection through hole 131. Then, the parts are placed into the storage tank 21. The oil on the surface of the parts drips from the metal filter 211 at the bottom of the storage tank 21 to the oil collection tank 221 at the bottom of the bracket 22, and then flows into the sliding tube 321 through the oil outlet pipe 222, and then enters the annularly distributed oil collection channel 31 in the oil drain plate 13 through the collection through hole 131, and finally completes the oil collection. If you need to switch to another storage rack 2, simply rotate the storage bracket 121 repeatedly. The sliding tube 321 will switch between the annular guide groove 132 and the positioning ring groove 133 as the storage bracket 121 rotates, thus switching between different oil collection states of the storage rack 2.

[0016] Reference Figures 1 to 8The top of the support 22 of the storage rack 2 is rotatably connected to the inner side of the storage rack 121 via a positioning shaft 1211. The positioning shaft 1211 is fixedly installed on the storage rack 121, and a limiting nut 1212 is fitted on the end of the positioning shaft 1211 away from the storage rack 121 to limit the support 22 on the positioning shaft 1211. An operating handle 1213 corresponding to the storage rack 2 is fixedly installed on the outer side of the storage rack 121. The support 22 adopts a structure that extends through both sides. The lower half of the storage slot 21 is rotatably connected to the inner side of the support 22 via rotating shafts 212 on both sides. A limiting plate 223 is provided on one side of the support 22. A first magnetic block 2231 is provided inside the limiting plate 223, and a corresponding second magnetic block 213 is provided on the storage slot 21. Limiting rods 215 are provided on both sides of the storage slot 21, and an arc-shaped groove 224 corresponding to the limiting rods 215 is provided on the inner side of the bracket 22. The arc-shaped groove 224 can limit the rotation angle of the storage slot 21. The arc-shaped groove 224 is distributed with the axis of rotation 212 as the center. A handle 214 is also provided on the side of the storage slot 21 away from the second magnetic block 213. When a specific storage rack 2 is needed, hold the corresponding operating handle 1213 on the outside of the storage bracket 121 and rotate the storage bracket 121. The bracket 22 of the storage rack 2 will rotate with the storage bracket 121 around the positioning shaft 1211. The limiting nut 1212 can prevent the bracket 22 from falling off the positioning shaft 1211 until the target storage rack 2 is rotated to a position that is easy to operate. At this time, if you want to place or retrieve parts into the storage slot 21, you can hold the handle 214 on the side of the storage slot 21 away from the second magnetic block 213 and apply force to make the storage slot 21 rotate around the rotation shaft 212 inside the bracket 22. At the same time, the limiting rods 215 on both sides of the storage slot 21 will slide along the arc groove 224 inside the bracket 22. The arc groove 224 is centered on the rotation shaft 212 and can limit the maximum rotation angle of the storage slot 21. After the storage slot 21 is rotated to a suitable angle, the parts can be stored or retrieved. After storage and retrieval are completed, the storage slot 21 is rotated in the opposite direction until the second magnetic block 213 on the storage slot 21 is attracted to the first magnetic block 2231 on the inner side of the limiting plate 223 on one side of the bracket 22. The storage slot 21 is then fixed inside the bracket 22, completing one part storage and retrieval operation.

[0017] Reference Figures 1 to 8The bottom of the oil collection channel 31 is connected to the oil drain pipe 311. The cross-section of the oil collection channel 31 is rectangular, and the inner top and bottom surfaces of the oil collection channel 31 are provided with arc-shaped grooves to facilitate oil flow. When the oil on the surface of the parts enters the oil collection channel 31, the rectangular structure of the channel cross-section provides a stable flow space for the oil. At the same time, the arc-shaped grooves on the inner top and bottom surfaces guide the oil to converge at the bottom of the channel, preventing oil residue on the inner wall of the channel. Finally, the oil that converges at the bottom of the channel flows directly into the connected oil drain pipe 311, and is discharged centrally through the oil drain pipe 311, completing the entire oil collection and discharge process.

[0018] Reference Figures 1 to 8An oil baffle 3211 is installed at the outlet end of the sliding tube 321. A rotating shaft 3212, which is rotatably connected to the sliding tube 321, is provided along the horizontal diameter of the oil baffle 3211. The oil baffle 3211 is sealed to the inner surface of the sliding tube 321 by a sealing ring. The oil baffle 3211 rotates along the rotating shaft 3212 to open and close the outlet of the sliding tube 321. The top inner side of the oil baffle 3211 is connected to the outlet end of the oil outlet pipe 222 by a telescopic rod 3213. The two ends of the telescopic rod 3213 are hinged to the oil baffle 3211 and the oil outlet pipe 222, respectively. When the sliding tube 321 is engaged with the annular guide groove 132, the telescopic rod 3213 reaches its maximum extension distance. The inner side of the positioning ring groove 133 adopts an arc surface structure, and the free end of the sliding tube 321 that is fully inserted into the positioning ring groove 133 is located in the oil collection channel 31. When the storage bracket 121 rotates, it can drive the sliding tube 321 to switch between the positioning ring groove 133 and the annular guide groove 132. When it is necessary to switch storage rack 2, rotating storage bracket 121 will drive the oil outlet pipe 222 and the sliding pipe 321 mounted on it to move. The sliding pipe 321 slides from the positioning ring groove 133 of the oil drain plate 13 into the annular guide groove 132. The arc-shaped structure facilitates sliding switching. During this process, the sliding pipe 321 moves away from the oil drain plate 13, which compresses the spring 2221 mounted on the oil outlet pipe 222. A torsion spring is installed between the rotating shaft 3212 of the oil baffle 3211 and the sliding pipe 321 to restrict the oil baffle 3211 to the state of sealing the outlet of the sliding pipe 321. The telescopic rod 3213, which is hinged to the top of the inner side of the oil baffle 3211, gradually retracts to a non-maximum telescopic distance as the sliding pipe 321 moves, causing the oil baffle 3211 to rotate around the rotating shaft 3212 at the horizontal diameter. The sealing ring around it tightly fits the inner surface of the sliding pipe 321, realizing the sealing and closing of the outlet of the sliding pipe 321. Once the target storage rack 2 is in place, the spring 2221 resets and pushes the sliding tube 321 to re-embed into the positioning ring groove 133. The free end of the sliding tube 321 extends into the oil collection channel 31, and the telescopic rod 3213 extends to its maximum telescopic distance, causing the oil baffle 3211 to rotate in the opposite direction and open the outlet of the sliding tube 321. At this time, the oil can flow into the sliding tube 321 from the oil outlet pipe 222, and then enter the oil collection channel 31 through the opened outlet, completing the oil conduction and collection. If the storage bracket 121 is rotated again, the sliding tube 321 will repeat the above switching action, realizing the opening and closing of the outlet of the sliding tube 321 and the switching of the oil passage.

[0019] Working principle: When in use, first rotate the storage bracket 121 by operating the handle 1213 on the outside of the storage bracket 121, which will drive the storage rack 2 in the circumferential array to rotate to a position that is easy to operate. During this process, the sliding tube 321 fitted on the oil outlet pipe 222 will rotate with the storage bracket 121, slide out of the positioning ring groove 133 in the annular guide groove 132 of the oil drain plate 13 and move along the annular guide groove 132. The spring 2221 is compressed. At the same time, the oil baffle 3211 at the outlet end of the sliding tube 321 rotates around the rotating shaft 3212 under the contraction action of the torsion spring and the telescopic rod 3213, closing the outlet of the sliding tube 321 to block the oil passage. After the target storage rack 2 is in place, the spring 2221 resets and pushes the sliding tube 321 to re-embed into the corresponding positioning ring groove 133. The free end of the sliding tube 321 extends into the oil collection channel 31. After the telescopic rod 3213 extends to its maximum telescopic distance, it drives the oil baffle 3211 to rotate and open the outlet. At this time, the parts with oil are placed into the storage tank 21. The oil drips from the metal filter screen 211 at the bottom of the storage tank 21 to the oil collection tank 221 at the bottom of the bracket 22. Then, it flows into the annular oil collection channel 31 in the oil drain plate 13 through the oil outlet pipe 222, the sliding tube 321 and the collection through hole 131. Finally, it is discharged along the channel to the bottom oil drain pipe 311. If a part needs to be retrieved, the handle 214 on the storage slot 21 can be used to overcome the attraction of the first magnetic block 2231 and the second magnetic block 213, and the storage slot 21 can be rotated out around the rotating shaft 212. The limiting rod 215 slides along the arc groove 224 on the inner side of the bracket 22 to limit the rotation angle. After the part is retrieved, the storage slot 21 is rotated in the opposite direction until the magnetic blocks re-attach and reposition.

[0020] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A storage rack for automotive parts, characterized in that: include The support frame assembly (1) includes a base (11) and an integrally formed support plate (12) and an oil drain plate (13) on both sides of the base (11). A storage bracket (121) is rotatably installed on the inner side of the support plate (12). Several sets of storage racks (2) are arranged in a circular array on the storage rack (121). The storage rack (2) includes a storage groove (21) and a bracket (22). The storage groove (21) is open at the top and rotatably installed in the bracket (22) on both sides. A metal filter screen (211) is used at the bottom of the storage groove (21). An oil collection groove (221) is opened at the bottom of the bracket (22), and an oil outlet pipe (222) is opened on the side of the oil collection groove (221). An oil collection assembly (3) includes an oil collection channel (31) and a linkage mechanism (32) at the oil outlet pipe (222). The oil collection channel (31) is distributed in a ring around the oil drain plate (13) along the circumference of the oil drain plate (13), and the inner circumference of the oil drain plate (13) is arrayed with collection through holes (131) connecting the oil collection channel (31) and the oil outlet pipe (222). The oil drain plate (13) has an annular guide groove (132) corresponding to the oil collection channel (31) on the side near the storage rack (2), and the collection through hole (131) passes through the annular guide groove (132). And it is arranged in a circular array on it, wherein the collecting through hole (131) is located on one side of the bottom of the annular guide groove (132) and a positioning ring groove (133) is provided; the linkage mechanism (32) includes a sliding tube (321) fitted on the oil outlet pipe (222), wherein the outer side of the sliding tube (321) adopts an arc structure that is adapted to the cross section of the annular guide groove (132) and the positioning ring groove (133), and a spring (2221) connecting the bracket (22) and the sliding tube (321) is fitted on the oil outlet pipe (222), and the spring (2221) makes the sliding tube (321) always have the tendency to move towards the positioning ring groove (133).

2. The automotive parts storage rack according to claim 1, characterized in that: The top of the support (22) of the storage rack (2) is rotatably connected to the inner side of the storage rack (121) via a positioning shaft (1211). The positioning shaft (1211) is fixedly installed on the storage rack (121), and a limiting nut (1212) is fitted on the end of the positioning shaft (1211) away from the storage rack (121) to limit the support (22) on the positioning shaft (1211). An operating handle (1213) corresponding to the storage rack (2) is fixedly installed on the outer side of the storage rack (121).

3. The automotive parts storage rack according to claim 2, characterized in that: The bracket (22) adopts a structure that runs through both sides. The lower half of the storage slot (21) is rotatably connected to the inner side of the bracket (22) through a rotating shaft (212). A limiting plate (223) is provided on one side of the bracket (22). A first magnetic block (2231) is provided inside the limiting plate (223), and a corresponding second magnetic block (213) is provided on the storage slot (21).

4. The automotive parts storage rack according to claim 3, characterized in that: The storage slot (21) is also provided with limiting rods (215) on both sides, and the bracket (22) is provided with an arc-shaped groove (224) corresponding to the limiting rods (215) on the inner side. The arc-shaped groove (224) can limit the rotation angle of the storage slot (21). The arc-shaped groove (224) is distributed along the axis of the rotation shaft (212) with the center of the circle. The storage slot (21) is also provided with a handle (214) on the side away from the second magnetic block (213).

5. The automotive parts storage rack according to claim 1, characterized in that: The bottom of the oil collection channel (31) is connected to the oil drain pipe (311). The cross-section of the oil collection channel (31) adopts a rectangular structure, and the inner top surface and inner bottom surface of the oil collection channel (31) are provided with arc-shaped grooves to facilitate the flow of oil.

6. The automotive parts storage rack according to claim 1, characterized in that: An oil baffle (3211) is installed at the outlet end of the sliding tube (321). A rotating shaft (3212) is provided along the horizontal diameter of the oil baffle (3211) and is rotatably connected to the sliding tube (321). The oil baffle (3211) is sealed to the inner tube surface of the sliding tube (321) by a sealing ring. The oil baffle (3211) rotates along the rotating shaft (3212) to open and close the outlet of the sliding tube (321).

7. The automotive parts storage rack according to claim 6, characterized in that: The top inner side of the oil baffle (3211) is connected to the outlet end of the oil outlet pipe (222) via a telescopic rod (3213). The two ends of the telescopic rod (3213) are respectively hinged to the oil baffle (3211) and the oil outlet pipe (222). When the sliding tube (321) is engaged with the annular guide groove (132), the telescopic rod (3213) reaches its maximum extension distance.

8. The automotive parts storage rack according to claim 7, characterized in that: The inner side of the positioning ring groove (133) adopts an arc surface structure, and the free end of the sliding tube (321) that is completely inserted into the positioning ring groove (133) is located in the oil collection channel (31). When the storage bracket (121) rotates, it can drive the sliding tube (321) to switch between the positioning ring groove (133) and the annular guide groove (132).

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