Filling system with detection function for lubricating oil production
By designing a lubricating oil production filling system with detection function, and utilizing sealing components and oil storage boxes to recover residual lubricating oil, the problem of low lubricating oil filling efficiency was solved, achieving efficient and low-cost lubricating oil filling.
Patent Information
- Application Number
- CN202210729463.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-24
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2042-06-24
AI Technical Summary
In existing filling equipment, when filling lubricating oil, residual lubricating oil in the oil outlet pipe can easily drip onto the conveyor belt, causing containers to tip over and resulting in waste, increasing production costs and reducing filling efficiency.
Design a lubricating oil production filling system with detection function, including a conveying component and an oil outlet component. The system utilizes a sealing component and a triggering component to achieve accurate filling and recycling of lubricating oil. The sealing head moves inside and outside the oil outlet pipe to achieve sealing, and the residual lubricating oil is recycled using an oil storage box.
It effectively prevents lubricating oil from dripping onto the conveyor belt, reduces production costs, improves filling efficiency, reduces the difficulty of subsequent cleaning, and ensures normal container filling.
Smart Images

Figure CN115196575B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of lubricating oil filling, and particularly relates to a lubricating oil production filling system with a detection function. BACKGROUND
[0002] Lubricating oil is a liquid or semi-solid lubricant used on various types of automobiles and mechanical equipment to reduce friction, protect machinery and workpieces, and mainly plays the roles of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering. As long as it is applied between two relatively moving objects to reduce friction and wear caused by contact, it is lubricating oil. In order to facilitate the transportation of lubricating oil, it is necessary to fill lubricating oil into a specific container.
[0003] When the existing filling device fills lubricating oil, the residual lubricating oil in the oil outlet pipe is prone to fall onto the conveying belt when the oil outlet pipe stops filling, so that the container on the conveying belt is prone to be tilted when moving, the container cannot be normally filled with lubricating oil, lubricating oil is wasted, production cost is increased, the user needs to stop the machine for cleaning the conveying belt in the later period, the lubricating oil filling difficulty is increased, and the lubricating oil filling efficiency is reduced. SUMMARY
[0004] The application aims to provide a lubricating oil production filling system with a detection function to solve the problem of low lubricating oil filling efficiency in the background.
[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a lubricating oil production filling system with a detection function, comprising a conveying assembly, the conveying assembly is used to drive the container to move, and an oil outlet assembly is installed on one side of the conveying assembly close to the moving path of the container, the oil outlet assembly reciprocates relative to the conveying assembly, and the oil outlet assembly is used to discharge lubricating oil into the interior of the container; the oil outlet assembly comprises a guide member and a sealing assembly movable in the guide member; a trigger member is arranged on the guide member, and a cavity for storing lubricating oil is formed in the sealing assembly; when the guide member discharges lubricating oil, the sealing assembly moves to the outside of the oil outlet assembly; when the guide member stops discharging lubricating oil, the sealing assembly moves back to the interior of the oil outlet assembly, the trigger member is triggered, and the cavity accommodates the lubricating oil seeped out of the guide member.
[0006] To facilitate the movement of the container, preferably, the conveying assembly comprises a base frame; two transmission rollers are symmetrically rotationally connected in the interior of the base frame, and a conveying belt is sleeved between the two transmission rollers; a motor is installed on the base frame, and the output end of the motor is connected with one of the transmission rollers.
[0007] Preferably, the guide member comprises a connecting box; an oil inlet end of the connecting box is fixedly connected with a connecting pipe, and an oil outlet end of the connecting box is fixedly connected with an oil outlet pipe; a circumferential surface of the oil outlet pipe is sleeved with a baffle cover.
[0008] Preferably, the sealing assembly comprises a sealing head; a top of the sealing head is provided with a connecting groove, and a circumferential surface of the sealing head is sleeved with a sealing ring; an inner wall of the oil outlet pipe is fixedly connected with a top plate above the sealing head; the top plate is fixedly connected with the second spring.
[0009] In order to facilitate the recycling of lubricating oil, preferably, the sealing assembly further comprises an oil storage box; the oil storage box is fixedly connected to the bottom of the sealing head, and an inside of the oil storage box is provided with an oil storage cavity; two recycling grooves are symmetrically provided on the top of the oil storage box; the recycling grooves are in communication with the oil storage cavity.
[0010] In order to facilitate the recycling of lubricating oil, preferably, the trigger member comprises a bottom rod and a third spring; two bottom rods are fixedly connected to the bottom of the oil outlet pipe; the third spring is fixedly connected to the inside of the low end of the oil storage cavity, and the top of the third spring is fixedly connected with a bottom plate; the top of the bottom plate is fixedly connected with an arc-shaped frame; the arc-shaped frame is matched with the recycling groove one by one.
[0011] In order to facilitate the discharge of the lubricating oil recycled in the oil storage cavity, preferably, the bottom of the oil storage box is provided with a discharge port; the discharge port is in communication with the oil storage cavity, and a sealing cover is screw-connected to the bottom of the discharge port.
[0012] In order to increase the sealing property between the sealing head and the oil outlet pipe, preferably, the sealing ring and the inner wall of the oil outlet pipe are in interference fit.
[0013] In order to facilitate the adjustment of the height of the oil outlet pipe, preferably, the base frame is symmetrically provided with electric push rods on both sides; the telescopic ends of the electric push rods are fixedly connected with the bottom of the connecting box.
[0014] In order to facilitate the guiding of the container to the oil outlet pipe, preferably, the conveying assembly further comprises a top frame; two top frames are installed on both sides of the top of the base frame, and each of the two top frames is rotatably connected with a roller frame on the opposite side; one side of the roller frame is rotatably connected with a roller, and the side of the roller frame opposite to the roller is rotatably connected with the first spring.
[0015] Compared with the prior art, the present application has the following advantages:
[0016] (1) The present application outputs lubricating oil through the oil outlet pipe, the lubricating oil pushes the sealing head to move to the outside of the oil outlet pipe, and the spring is stretched, so that the lubricating oil is filled into the container, when the oil outlet pipe stops outputting lubricating oil, the spring retracts, the sealing head moves to the inside of the oil outlet pipe, thereby blocking the oil outlet pipe, avoiding the lubricating oil remaining in the oil outlet pipe from falling on the conveying belt, preventing the containers on the conveying belt from being easily tilted when moving, allowing the containers to be normally filled with lubricating oil, and avoiding waste of lubricating oil, reducing production cost, and avoiding the user from stopping production for cleaning the conveying belt in the later stage, reducing the difficulty of lubricating oil filling, and improving the lubricating oil filling efficiency.
[0017] (2) On the basis of the above beneficial effects, when the sealing head moves back to the inside of the oil outlet pipe, the present application extrudes the arc-shaped frame through the bottom rod, moves the arc-shaped frame to the inside of the oil storage cavity through the recovery groove, moves the lubricating oil exuded from the oil outlet pipe to the inside of the oil storage cavity through the recovery groove, further reduces the probability of lubricating oil remaining in the oil outlet pipe falling on the conveying belt, further reduces the difficulty of lubricating oil filling, and further improves the lubricating oil filling efficiency.
[0018] (3) On the basis of the above beneficial effects, the present application separates the sealing cover from the oil discharge port by rotating the sealing cover, so that the lubricating oil recovered in the oil storage cavity is discharged from the oil discharge port, and the user can clean the oil storage cavity conveniently, further reducing the difficulty of lubricating oil filling, and further improving the lubricating oil filling efficiency.
[0019] (4) On the basis of the above beneficial effects, when the conveying belt drives the container to move, the first spring supports one side of the roller frame, and the roller frame supports the roller, when the container passes through the rolling road, the roller guides the container, so that the container is always located at the middle position of the conveying belt, the container is convenient for filling lubricating oil, the difficulty of lubricating oil filling is further reduced, and the lubricating oil filling efficiency is further improved. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 is a front view of the present application;
[0021] Figure 2 is a top view of the present application;
[0022] Figure 3 is Figure 2 is a top view of the disassembled connecting box;
[0023] Figure 4 is Figure 2 is an enlarged view of the middle A part;
[0024] Figure 5 is Figure 2 is an enlarged view of the middle B part;
[0025] Figure 6 is an internal structure view of the oil outlet assembly of the present application;
[0026] Figure 7 For Figure 6 Internal structure diagram after the sealing head moves;
[0027] Figure 8 For the appearance of the sealing head of the application;
[0028] Figure 9 For Figure 6 Enlarged view of the middle C part;
[0029] Figure 10 For Figure 6 Enlarged view of the middle D part;
[0030] Figure 11 For Figure 7 Enlarged view of the middle E part;
[0031] Figure 12 For the top view of the oil storage box of the application;
[0032] Figure 13 For the bottom view of the arc-shaped frame of the application;
[0033] Figure 14 For the bottom view of the oil outlet pipe of the application;
[0034] In the figure: 1, motor; 2, conveying belt; 3, top frame; 4, cover; 5, oil outlet pipe; 6, connecting pipe; 7, connecting box; 8, electric push rod; 9, base frame; 10, transmission roller; 11, roller; 12, roller frame; 13, first spring; 14, second spring; 15, sealing head; 16, bottom rod; 17, oil storage cavity; 18, oil storage box; 19, sealing ring; 20, arc-shaped frame; 21, third spring; 22, bottom plate; 23, oil discharge port; 24, sealing cover; 25, recovery groove; 26, connecting groove; 27, top plate; 28, infrared sensor. DETAILED DESCRIPTION
[0035] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.
[0036] Please refer to Figures 1-14 The application provides the following technical solutions:
[0037] The application discloses a lubricating oil production filling system with a detection function.
[0038] The oil outlet assembly comprises a guide member and a sealing assembly movably arranged in the guide member.
[0039] The guide member is provided with a trigger member, and the sealing assembly is internally provided with a cavity for storing lubricating oil.
[0040] When the guide member discharges lubricating oil, the sealing assembly moves to the outside of the oil outlet assembly.
[0041] When the guide member stops discharging lubricating oil, the sealing assembly moves back to the inside of the oil outlet assembly, the trigger member is triggered, and the cavity stores the lubricating oil seeped from the guide member.
[0042] Specifically, in an embodiment, the conveying assembly comprises:
[0043] The conveying assembly comprises a base frame 9.
[0044] The base frame 9 is internally and symmetrically connected with two transmission rollers 10, and a conveying belt 2 is arranged between the two transmission rollers 10.
[0045] A motor 1 is arranged on the base frame 9, and an output end of the motor 1 is connected with one of the transmission rollers 10.
[0046] When the conveying assembly works, the transmission roller 10 is supported by the base frame 9, the container to be conveyed is placed on the conveying belt 2, the motor 1 drives the transmission roller 10 to rotate, the transmission roller 10 drives the conveying belt 2 to move, and the container is moved by the conveying belt 2.
[0047] As shown in the specific technical scheme of the conveying assembly, Figures 1-5 the technical scheme of the conveying assembly is further refined.
[0048] The conveying assembly further comprises top frames 3.
[0049] The two top frames 3 are symmetrically arranged on the top of the base frame 9, and the opposite sides of the two top frames 3 are rotationally connected with roller frames 12, and the side of the top frame 3 close to the roller frame 12 is provided with an infrared sensor 28.
[0050] The roller frame 12 is rotationally connected with a roller 11 on one side, and the side of the roller frame 12 away from the roller 11 is rotationally connected with a first spring 13.
[0051] Through the technical scheme, when the conveying assembly works, when the conveying belt 2 drives the container to move, the first spring 13 supports one side of the roller frame 12, when the container contacts the roller 11 on the roller frame 12, the roller 11 guides the container, so that the container moves to the middle position of the conveying belt 2, and the container is convenient for filling, when the container passes the side of the infrared sensor 28, the motor 1 continuously works, and when no container passes the side of the infrared sensor 28 for a period of time, the motor 1 automatically stops working.
[0052] Specifically, in an embodiment, regarding the above-mentioned guide member:
[0053] In combination Figure 1 And Figure 2 It can be seen that the guide member comprises a connecting box 7;
[0054] The connecting box 7 is fixedly connected with a connecting pipe 6 at an oil inlet end, and an oil outlet pipe 5 at an oil outlet end;
[0055] The oil outlet pipe 5 is sleeved with a cover 4 on the circumference.
[0056] Through the technical scheme, when the guide member works, the pipeline conveying lubricating oil is connected with the connecting pipe 6, when lubricating oil needs to be filled, the lubricating oil is input through the connecting pipe 6, the lubricating oil is output through the oil outlet pipe 5 after entering the inside of the connecting box 7, so that the lubricating oil enters the inside of the container, and the outside of the opening of the container is shielded by the cover 4, so as to avoid spattering when filling the lubricating oil.
[0057] In addition, in the present application, the base frame 9 is symmetrically provided with an electric push rod 8 on both sides;
[0058] The telescopic end of the electric push rod 8 is fixedly connected with the bottom of the connecting box 7.
[0059] Through the technical scheme, the electric push rod 8 works, the connecting box 7 is driven to move by the electric push rod 8, so that the connecting box 7 and the oil outlet pipe 5 move to the height required by the user, and the position of the oil outlet pipe 5 can be adjusted according to the container.
[0060] Specifically, in an embodiment, regarding the above-mentioned sealing assembly:
[0061] As Figures 6-14 Shown, the sealing assembly comprises a sealing head 15;
[0062] The top of the sealing head 15 is provided with a connecting groove 26, and the circumference of the sealing head 15 is sleeved with a sealing ring 19, and the sealing ring 19 is in interference fit with the inner wall of the oil outlet pipe 5;
[0063] The inner wall of the oil outlet pipe 5 is fixedly connected with a top plate 27 above the sealing head 15;
[0064] The second spring 14 is fixedly connected between the top plate 27 and the connecting groove 26.
[0065] Through the above technical scheme, when the oil outlet pipe 5 outputs lubricating oil, the sealing head 15 is moved by the extrusion of the lubricating oil, until the sealing head 15 moves to the outside of the oil outlet pipe 5, the lubricating oil is discharged from the gap between the sealing head 15 and the oil outlet pipe 5, and the oil outlet pipe 5 can normally discharge lubricating oil. When the sealing head 15 moves, the second spring 14 inside the connecting groove 26 is stretched. When the oil outlet pipe 5 stops discharging lubricating oil, the sealing head 15 is moved back to the inside of the oil outlet pipe 5 by the second spring 14, so that the sealing head 15 blocks the oil outlet pipe 5, and the sealing between the sealing head 15 and the oil outlet pipe 5 is increased by the sealing ring 19.
[0066] In combination Figures 6-14 The technical scheme of the sealing assembly is further refined.
[0067] The sealing assembly further comprises an oil storage box 18;
[0068] The oil storage box 18 is fixedly connected to the bottom of the sealing head 15, and an oil storage cavity 17 is formed in the inside of the oil storage box 18. Two recycling grooves 25 are symmetrically formed in the top of the oil storage box 18.
[0069] The recycling grooves 25 are in communication with the oil storage cavity 17.
[0070] Through the above technical scheme, when the oil outlet pipe 5 stops discharging lubricating oil, when the oil outlet pipe 5 seeps a small amount of lubricating oil, the lubricating oil enters the inside of the oil storage cavity 17 through the recycling grooves 25, so as to avoid the lubricating oil leaking from the oil outlet pipe 5 to the conveying belt 2.
[0071] Preferably, regarding the above trigger member:
[0072] The trigger member comprises a bottom rod 16 and a third spring 21.
[0073] The two bottom rods 16 are fixedly connected to the bottom of the oil outlet pipe 5.
[0074] The third spring 21 is fixedly connected to the inside low end of the oil storage cavity 17, and a bottom plate 22 is fixedly connected to the top of the third spring 21.
[0075] The top of the bottom plate 22 is fixedly connected with an arc-shaped frame 20.
[0076] The arc-shaped frame 20 is matched with the recycling grooves 25 one by one.
[0077] Through the technical scheme, when the sealing head 15 moves to the outside of the oil outlet pipe 5, the bottom plate 22 drives the arc-shaped frame 20 to move by being extruded and pushed by the third spring 21, the arc-shaped frame 20 moves to the outside of the oil storage box 18 through the recovery groove 25, and when the oil outlet pipe 5 outputs lubricating oil, the lubricating oil is prevented from entering the inside of the oil storage cavity 17. When the sealing head 15 moves to the inside of the oil outlet pipe 5, the arc-shaped frame 20 is extruded by the bottom rod 16, the arc-shaped frame 20 moves to the inside of the oil storage box 18 through the recovery groove 25, the bottom plate 22 is driven to move by the arc-shaped frame 20, the third spring 21 is compressed by the bottom plate 22, the recovery groove 25 is exposed, and when the oil outlet pipe 5 seeps a small amount of lubricating oil, the small amount of lubricating oil seeped by the oil outlet pipe 5 flows to the inside of the oil storage cavity 17 through the recovery groove 25.
[0078] In the embodiment, further, the oil storage box 18 is provided with an oil outlet 23 at the bottom;
[0079] The oil outlet 23 is communicated with the oil storage cavity 17, and the bottom of the oil outlet 23 is screw-connected with a sealing cover 24. Therefore, when the user needs to discharge the recovered lubricating oil in the oil storage cavity 17, the sealing cover 24 is unscrewed, the oil outlet 23 is exposed, and the lubricating oil can be discharged through the oil outlet 23.
[0080] The working principle and use process of the application: when the application is used, other structures are supported by the base frame 9, the pipeline for conveying lubricating oil is connected with the connecting pipe 6, the container is placed on the conveying belt 2, the motor 1 drives the transmission roller 10 to rotate, the transmission roller 10 drives the conveying belt 2 to move, the container is moved by the conveying belt 2, when the container passes the one side of the infrared sensor 28, the motor 1 will continue to work, when a period of time without the container passing the one side of the infrared sensor 28, the motor 1 automatically stops working, when the conveying belt 2 drives the container to move, the first spring 13 supports one side of the roller frame 12, when the container contacts the roller 11 on the roller frame 12, the roller 11 guides the container, so that the container moves to the middle position of the conveying belt 2, and the container is convenient for filling, when filling lubricating oil is needed, the lubricating oil is input through the connecting pipe 6, after the lubricating oil enters the inside of the connecting box 7, the outer side of the opening of the container is shielded by the cover 4, so as to avoid spattering when filling the lubricating oil, when the oil outlet pipe 5 outputs the lubricating oil, the sealing head 15 is moved by the extrusion of the lubricating oil, until the sealing head 15 moves to the outside of the oil outlet pipe 5, so that the lubricating oil is discharged from the gap between the sealing head 15 and the oil outlet pipe 5, the oil outlet pipe 5 can normally discharge the lubricating oil, the lubricating oil is input into the container for filling, after the container is filled, the filled container is moved forward by the conveying belt 2, so that the unfilled container moves below the oil outlet pipe 5, so that the container continuously fills the lubricating oil, when the sealing head 15 moves, the second spring 14 in the connecting groove 26 is stretched, when the oil outlet pipe 5 stops discharging the lubricating oil, the sealing head 15 is moved back to the inside of the oil outlet pipe 5 by the second spring 14, so that the sealing head 15 blocks the oil outlet pipe 5, and the sealing property between the sealing head 15 and the oil outlet pipe 5 is increased by the sealing ring 19, the arc-shaped frame 20 is moved to the inside of the oil storage box 18 through the recovery groove 25 by the extrusion of the bottom rod 16, the bottom plate 22 is moved by the arc-shaped frame 20, the third spring 21 is compressed by the bottom plate 22, so that the recovery groove 25 is exposed, when a small amount of lubricating oil seeps out of the oil outlet pipe 5, the small amount of lubricating oil seeping out of the oil outlet pipe 5 flows into the oil storage cavity 17 through the recovery groove 25, so as to avoid the lubricating oil leaking out of the oil outlet pipe 5 onto the conveying belt 2, when the user needs to discharge the recovered lubricating oil in the oil storage cavity 17, the oil discharge port 23 is exposed by unscrewing the sealing cover 24, so that the lubricating oil can be discharged through the oil discharge port 23.
[0081] It is to be understood that the terminology used herein such as first and second, and the like, is only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0082] While embodiments of the present application have been shown and described with reference to particular embodiments thereof, it will be understood by those skilled in the art that various changes in form and details can be made therein without departing from the spirit and scope of the application. The scope of the application is defined by the appended claims and their equivalents.
Claims
1. A filling system for lubricating oil production with a detection function, characterized in that: The application relates to a container conveying device, which comprises a conveying assembly for moving containers, an oil outlet assembly installed on one side of the conveying assembly close to a container moving path, and the oil outlet assembly reciprocally moves relative to the conveying assembly and is used for discharging lubricating oil into the interior of the container. The oil outlet assembly comprises a guide member and a sealing assembly movably arranged in the guide member. The guide member is provided with a trigger member, and a cavity for storing lubricating oil is arranged in the sealing assembly. When the guide member discharges lubricating oil, the sealing assembly moves to the outside of the oil outlet assembly. When the guide member stops discharging lubricating oil, the sealing assembly moves back to the inside of the oil outlet assembly, the trigger member is triggered, and the cavity stores the discharged lubricating oil of the guide member. The conveying assembly comprises a base frame (9). Two transmission rollers (10) are symmetrically and rotatably connected to the inside of the base frame (9), and a conveying belt (2) is arranged between the two transmission rollers (10). A motor (1) is installed on the base frame (9), and the output end of the motor (1) is connected with one of the transmission rollers (10). The guide member comprises a connecting box (7). The oil inlet end of the connecting box (7) is fixedly connected with a connecting pipe (6), and the oil outlet end of the connecting box (7) is fixedly connected with an oil outlet pipe (5). The circumferential surface of the oil outlet pipe (5) is sleeved with a shielding cover (4). The sealing assembly comprises a sealing head (15). The top of the sealing head (15) is provided with a connecting groove (26), and the circumferential surface of the sealing head (15) is sleeved with a sealing ring (19). The inner wall of the oil outlet pipe (5) is fixedly connected with a top plate (27) above the sealing head (15). The second spring (14) is fixedly connected between the top plate (27) and the connecting groove (26). The sealing assembly further comprises an oil storage box (18). The oil storage box (18) is fixedly connected to the bottom of the sealing head (15), and the inside of the oil storage box (18) is provided with an oil storage cavity (17). The top of the oil storage box (18) is symmetrically provided with two recovery grooves (25) which are in communication with the oil storage cavity (17). The trigger member comprises a bottom rod (16) and a third spring (21). The bottom of the oil outlet pipe (5) is fixedly connected with the bottom rod (16). The third spring (21) is fixedly connected to the inside of the low end of the oil storage cavity (17), and the top of the third spring (21) is fixedly connected with a bottom plate (22). The top of the bottom plate (22) is fixedly connected with an arc-shaped frame (20).
2. The filling system with detection function for lubricating oil production according to claim 1, characterized in that: The arc-shaped frame (20) is matched with the recovery groove (25) one by one. The bottom of the oil storage box (18) is provided with a discharge port (23) which is in communication with the oil storage cavity (17), and the bottom of the discharge port (23) is screw-connected with a sealing cover (24).
3. The filling system with detection function for lubricating oil production according to claim 2, characterized in that: The sealing ring (19) is in interference fit with the inner wall of the oil outlet pipe (5).
4. The filling system with detection function for lubricating oil production according to claim 3, characterized in that: The symmetrical two sides of the base frame (9) are both provided with an electric push rod (8). The telescopic end of the electric push rod (8) is fixedly connected with the bottom of the connecting box (7).
5. The filling system with detection function for lubricating oil production according to claim 4, characterized in that: The conveying assembly further comprises a top frame (3). Two said top frames (3) are symmetrically installed on two sides of the top of the base frame (9), and the opposite sides of the two top frames (3) are rotatably connected with roller frames (12); One side of the roller frame (12) is rotatably connected with a roller (11), and the side of the roller frame (12) opposite to the roller (11) is rotatably connected with a first spring (13) with the top frame (3).
Citation Information
Patent Citations
Automatic oil filling machine
CN209383363U