A controlled quantity oil injection device

Abstract

The utility model provides a control amount oil injection device, belong to the technical field, including the material containing cylinder, the outer surface fixed mounting of material containing cylinder has the handle, and the outer surface of material containing cylinder opposite one side of handle is connected with unidirectional feed valve arrangement, and the feed end of unidirectional feed valve is installed with feed pipe, the feed end fixed mounting of feed pipe has the screw end, the lower surface fixed mounting of material containing cylinder has unidirectional discharge valve, the discharge end fixed mounting of unidirectional discharge valve has oil injection needle, the inside sliding installation of material containing cylinder has rubber plug, the upper surface center of rubber plug fixed mounting has square bar, the top end screw joint of material containing cylinder has cylinder cover, square bar penetrates cylinder cover and is slidably connected with it, install spring between rubber plug and cylinder cover, the top end detachable installation of square bar is used for the prying mechanism of driving square bar moves up and down, the utility model can realize quantitative oil injection, avoid lubricating oil waste, ensure that work piece is properly lubricated, prolongs work piece life.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to a controlled oil injection device. Background Technology

[0002] In machinery manufacturing, equipment maintenance, and the operation of precision instruments, precise lubrication is crucial for ensuring normal operation and extending the service life of workpieces. Whether it's transmission components or hydraulic and pneumatic parts, precise lubrication is necessary to form a stable oil film, reduce wear, isolate impurities, and prevent component failures caused by dry friction.

[0003] However, current traditional oil injection devices have the following shortcomings:

[0004] I. Most lubrication devices struggle to precisely control the amount of lubricant injected. Over-lubricating wastes lubricant and increases production costs; under-lubricating fails to meet the lubrication needs of the workpiece, affecting its normal operation and lifespan, potentially leading to equipment malfunctions and increased maintenance costs and downtime.

[0005] Second, the operation process of traditional oil injection devices is relatively cumbersome. Achieving oil suction and discharge often requires the use of complex tools or multiple steps, which not only consumes a lot of the operator's energy and time, but also reduces work efficiency. In large-scale production or emergency equipment maintenance scenarios, it seriously affects the production progress and timely repair of equipment.

[0006] In summary, a controlled-volume oil injection device is provided to solve the above-mentioned technical problems. Utility Model Content

[0007] The purpose of this invention is to provide a controlled oil injection device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A controlled-volume oil injection device includes a container cylinder. A handle is fixedly installed on the outer surface of the container cylinder, and a one-way feed valve is connected to the side of the outer surface of the container cylinder opposite to the handle. A feed pipe is fixedly installed at the feed end of the one-way feed valve, and a threaded end is fixedly installed at the feed end of the feed pipe. A one-way discharge valve is fixedly installed on the lower surface of the container cylinder, and an oil injection needle is fixedly installed at the discharge end of the one-way discharge valve. A rubber stopper is slidably installed inside the container cylinder. A square rod is fixedly installed at the center of the upper surface of the rubber stopper. A cylinder cover is screwed to the top of the container cylinder. The square rod passes through the cylinder cover and is slidably connected to it. A spring is installed between the rubber stopper and the cylinder cover. A prying mechanism for driving the square rod to move up and down is detachably installed at the top of the square rod.

[0010] Preferably, a threaded part is fixedly installed at the top of the square rod, the threaded part is a reverse bolt, and a lock nut is threaded onto the outer surface of the reverse bolt;

[0011] The prying mechanism includes a sleeve plate, which is fitted onto the outer surface of the bolt. The locking nut is abutted against the upper surface of the sleeve plate. The end of the sleeve plate away from the locking nut is provided with a mounting groove. A rocker plate is hinged in the mounting groove by a pin. The lower surface of the rocker plate rests on the edge of the upper surface of the cylinder cover.

[0012] Preferably, a support plate is fixedly installed on the outer surface of the container, and the feed pipe is L-shaped and passes through the support plate.

[0013] Preferably, the outer surface of the handle is provided with anti-slip threads.

[0014] Preferably, an observation window is provided through the front surface of the container, and a transparent pressure-resistant glass is sealed inside the observation window.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model achieves quantitative oil injection by setting up a prying mechanism, a spring, and a rubber stopper in a coordinated structure. In actual operation, the movement distance of the rubber stopper is limited by the prying stroke of the prying plate and the compression of the spring each time the prying plate is pressed and released, so that the amount of oil sucked and discharged in a single operation is relatively fixed, thereby achieving quantitative oil injection, avoiding waste of lubricating oil, ensuring that the workpiece receives adequate lubrication, and extending the service life of the workpiece.

[0017] By setting up a prying mechanism consisting of a rocker, a sleeve, a screw connection, and a locking nut, the oil filling operation process is simplified, saving the operator's physical strength. In actual operation, the operator only needs to press down on the rocker with his thumb, and by using the lever principle, the square rod can be moved up through the sleeve. Compared with the traditional complicated oil filling operation, it greatly saves physical strength, improves the convenience of operation, and increases work efficiency. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the material container of this utility model.

[0020] Figure 3 This is a schematic diagram of the rubber stopper structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of this utility model in use.

[0022] In the diagram: 1. Material container; 11. Handle; 12. One-way feed valve; 121. Feed pipe; 122. Threaded end; 13. One-way discharge valve; 131. Oil injection needle; 14. Support plate; 2. Rubber plug; 21. Square rod; 211. Threaded part; 212. Locking nut; 22. Spring; 3. Cylinder cover; 4. Prying mechanism; 41. Sleeve plate; 411. Mounting groove; 42. Rocker; 5. Bottled lubricating oil. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model provides a technical solution:

[0025] A controlled-volume oil injection device includes a container cylinder 1 made of stainless steel. A handle 11 is welded and fixedly installed on the outer surface of the container cylinder 1. The outer surface of the handle 11 is provided with anti-slip threads. A one-way feed valve 12 is connected to the side of the outer surface of the container cylinder 1 opposite to the handle 11. A feed pipe 121 is fixedly installed at the feed end of the one-way feed valve 12. A screw end 122 is fixedly installed at the feed end of the feed pipe 121. A one-way discharge valve 13 is fixedly installed on the lower surface of the container cylinder 1. An oil injection needle 131 is fixedly installed at the discharge end of the one-way discharge valve 13. A rubber plug 2 is slidably installed inside the container cylinder 1. A square rod 21 is fixedly installed at the center of the upper surface of the rubber plug 2. A cylinder cover 3 is screwed to the top of the container cylinder 1. The square rod 21 passes through the cylinder cover 3 and is slidably connected to it. A spring 22 is installed between the rubber plug 2 and the cylinder cover 3. A prying mechanism 4 for driving the square rod 21 to move up and down is detachably installed at the top of the square rod 21.

[0026] The opening pressure of the one-way feed valve 12 is set to 0.1-0.3MPa, which ensures that it opens smoothly when the rubber plug 2 moves upward to generate negative pressure, so as to realize the intake of lubricating oil. At the same time, it closes reliably when the rubber plug 2 moves downward to prevent the lubricating oil in the container 1 from flowing back to the feed pipe 121.

[0027] The opening pressure of the one-way discharge valve 13 is set to 0.2-0.4 MPa. When the rubber stopper 2 moves downward and applies pressure to the lubricating oil in the container 1, and the pressure reaches the opening pressure, the one-way discharge valve 13 opens, allowing the lubricating oil to be discharged smoothly. When the rubber stopper 2 moves upward, the one-way discharge valve 13 closes under its own structure and the gravity of the lubricating oil, preventing external impurities from entering the container 1 through the oil injection needle 131 and contaminating the lubricating oil.

[0028] By placing the one-way feed valve 12 and the one-way discharge valve 13 on opposite sides and the lower surface of the container cylinder, a reasonable "in-storage-discharge" path for lubricating oil is formed, ensuring a continuous oil injection process. The feed pipe 121 and the threaded end 122 facilitate connection to the bottled lubricating oil 5, and the threaded connection provides good sealing performance, preventing lubricating oil leakage. The principle is that the threaded connection achieves a tight fit through mutual meshing, reducing gaps. The injection needle 131 is suitable for oil injection scenarios with narrow spaces or high precision requirements, preventing lubricating oil from being wasted in unnecessary areas.

[0029] The rubber stopper 2 is slidably connected to the container cylinder 1, and can change the volume of the container cylinder 1 by moving up and down, thereby realizing oil suction and discharge. Its rubber material has good sealing properties, which can prevent the lubricating oil in the container cylinder 1 from leaking from the gap between the rubber stopper 2 and the cylinder wall. The principle is that the elasticity of the rubber allows it to fit tightly against the cylinder wall and eliminate the gap.

[0030] The square rod 21 passes through the cylinder cover 3 and is slidably connected to it. The square rod 21 serves as a transmission component that drives the rubber plug 2 to move. The limiting function of the cylinder cover 3 ensures that the square rod 21 moves in a stable direction, preventing the rubber plug 2 from shifting during movement, which could lead to sealing failure or poor oil suction and discharge.

[0031] Spring 22 is installed between rubber plug 2 and cylinder cover 3 to provide power for rubber plug reset. There is no need to manually pull square rod 21 upward, simplifying the operation process. The principle is that spring 22 will generate elastic force to restore its original shape after being compressed, which pushes the rubber plug down to realize oil discharge.

[0032] The prying mechanism 4 is detachable, which facilitates its maintenance or replacement in the future.

[0033] It should be noted that, in combination Figure 2 and Figure 3 As shown, a screw connection 211 is fixedly installed at the top of the square rod 21. The screw connection 211 is a reverse bolt, and a lock nut 212 is screwed onto the outer surface of the reverse bolt.

[0034] The prying mechanism 4 includes a sleeve plate 41, which is fitted onto the outer surface of the bolt. A locking nut 212 is abutted against the upper surface of the sleeve plate 41. A mounting groove 411 is provided at the end of the sleeve plate 41 away from the locking nut 212. A rocker plate 42 is hinged in the mounting groove 411 by a pin. The lower surface of the rocker plate 42 rests on the edge of the upper surface of the cylinder cover 3.

[0035] The rocker arm 42 can rotate flexibly around the pin, providing a pivot point for the prying operation. It conforms to the lever principle. The operator only needs to press the rocker arm 42 with a small force to move the square rod 21 upward through the sleeve plate 41, saving the operator's physical strength and improving the convenience of operation.

[0036] The lower surface of the rocker 42 rests on the edge of the upper surface of the cylinder cover 3. The cylinder cover 3 provides a stable fulcrum for the rocker 42, ensuring that the rocker 42 will not deviate during the prying process and that the power can be effectively transmitted to the square rod 21. The principle is that in the lever principle, a fixed fulcrum can make the force more efficiently converted into the motion of the object being acted upon. A stable fulcrum is the basis for the efficient operation of the lever.

[0037] In addition, considering that after the feed pipe 121 is connected to the bottled lubricating oil 5, the feed pipe 121 will be subjected to the gravity of the bottled lubricating oil 5 and the impact force of the oil during the oil suction and discharge process, which will affect the stability of the feed pipe 121, a support plate 14 needs to be fixedly installed on the outer surface of the container cylinder 1. The feed pipe 121 is L-shaped. After the feed pipe 121 passes through the support plate 14, the support plate 14 can provide an additional fixed support point for the feed pipe 121, disperse the external force on the feed pipe 121, and improve the structural stability of the feed pipe 121.

[0038] Finally, to facilitate operators to observe the amount of lubricating oil in the container 1 and the oil suction and discharge situation in real time, an observation window needs to be opened through the front surface of the container 1, and a transparent pressure-resistant glass is installed in the observation window by sealing with sealant.

[0039] During the oil filling process, the operator can directly see the remaining amount of lubricating oil in the container 1 through the transparent glass, so as to detect the insufficient lubricating oil in time and replace the bottled lubricating oil 5 in time, so as to avoid the interruption of the oil filling work due to the depletion of lubricating oil.

[0040] Working principle:

[0041] Preparation: Connect and fix the bottled lubricating oil 5 to the feed pipe 121 through the screw end 122. The operator holds the handle 11 outside the container cylinder 1 and moves the device to the lubrication point of the workpiece so that the oil injection needle 131 of the discharge end of the one-way discharge valve 13 is aligned with the position to be lubricated.

[0042] Oil suction stage: Press down on the pry bar 42 of the lever mechanism 4 with your thumb. Since the lower surface of the pry bar 42 rests on the edge of the cylinder cover 3 (with the cylinder cover 3 as the fulcrum), and the pry bar 42 is fixed to the screw connection 211 and locking nut 212 at the top of the square rod 21 through the sleeve plate 41, the pressing action will drive the square rod 21 to move upward through the sleeve plate 41. The square rod 21 simultaneously pulls the rubber stopper 2 in the container 1 upward. At this time, the spring 22 between the rubber stopper 2 and the cylinder cover 3 is compressed, and the space inside the container 1 increases to form a negative pressure. When the negative pressure reaches the opening condition of the one-way feed valve 12 (opening pressure 0.1-0.3MPa), the one-way feed valve 12 opens, and the bottled lubricating oil 5 is sucked into the container 1 through the feed pipe 121 and the one-way feed valve 12, completing the oil suction.

[0043] Oil draining stage: Release the finger pressing the rocker arm 42, the compressed spring 22 releases its elasticity, pushes the rubber plug 2 down, the space inside the container 1 shrinks and the pressure increases. When the pressure reaches the opening condition of the one-way discharge valve 13 (opening pressure 0.2-0.4MPa), the one-way discharge valve 13 opens, and the lubricating oil in the container 1 enters the oil injection needle 131 through the one-way discharge valve 13, and is finally accurately discharged to the lubrication point of the workpiece by the oil injection needle 131, thus completing the oil draining.

[0044] Quantitative circulation: The process of "pressing the rocker 42 to draw in oil - releasing the rocker 42 to discharge oil" is a single oil injection stroke. Because the movement distance of the rubber stopper 2 is limited by the rocker 42's prying stroke and the compression of the spring 22 each time, the amount of oil drawn in and discharged in a single stroke is relatively fixed, thus achieving quantitative oil injection. By repeatedly cycling this stroke, the continuous lubrication of the workpiece can be completed, avoiding the waste of lubricating oil.

[0045] Throughout the process, the one-way feed valve 12 is reliably closed during the oil discharge stage due to the reverse pressure inside the container 1, preventing lubricating oil from flowing back into the feed pipe 121. During the oil suction stage, the one-way discharge valve 13 is closed due to its own structure and the gravity of the lubricating oil, preventing external impurities from entering the container 1 through the oil injection needle 131 and contaminating the lubricating oil.

Claims

1. A controlled-volume oil injection device, comprising a material container (1), characterized in that: A handle (11) is fixedly installed on the outer surface of the material container (1), and a one-way feed valve (12) is provided on the side of the outer surface of the material container (1) opposite to the handle (11). A feed pipe (121) is fixedly installed at the feed end of the one-way feed valve (12), and a screw end (122) is fixedly installed at the feed end of the feed pipe (121). A one-way discharge valve (13) is fixedly installed on the lower surface of the material container (1), and an oil injection needle (131) is fixedly installed on the discharge end of the one-way discharge valve (13). A rubber plug (2) is slidably installed inside the container (1). A square rod (21) is fixedly installed at the center of the upper surface of the rubber plug (2). A cylinder cover (3) is screwed to the top of the container (1). The square rod (21) passes through the cylinder cover (3) and is slidably connected to it. A spring (22) is installed between the rubber plug (2) and the cylinder cover (3). A prying mechanism (4) for driving the square rod (21) to move up and down is detachably installed at the top of the square rod (21).

2. The controlled-volume oil injection device according to claim 1, characterized in that: The top end of the square rod (21) is fixedly installed with a threaded part (211), which is a reverse bolt, and a locking nut (212) is threaded onto the outer surface of the reverse bolt. The prying mechanism (4) includes a sleeve plate (41), which is sleeved on the outer surface of the bolt. The locking nut (212) is abutted against the upper surface of the sleeve plate (41). The end of the sleeve plate (41) away from the locking nut (212) is provided with a mounting groove (411). A rocker plate (42) is installed in the mounting groove (411) by a pin hinge. The lower surface of the rocker plate (42) rests on the edge of the upper surface of the cylinder cover (3).

3. The controlled-volume oil injection device according to claim 1, characterized in that: A support plate (14) is fixedly installed on the outer surface of the material container (1), and the feed pipe (121) is L-shaped and passes through the support plate (14).

4. The controlled-volume oil injection device according to claim 1, characterized in that: The outer surface of the handle (11) is provided with anti-slip threads.

5. The controlled-volume oil injection device according to claim 1, characterized in that: An observation window is provided through the front surface of the container (1), and a transparent pressure-resistant glass is sealed inside the observation window.

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