A quantitative oil injection device based on cylinder structure

Abstract

The utility model discloses a quantitative oil injection device based on cylinder structure, including front cover, back cover and set up between the front cover with the cylinder barrel of back cover, be provided with the piston in the cylinder barrel, the space of cylinder barrel between the piston with the back cover is oil cavity, the space of cylinder barrel between the piston with the front cover is gas cavity, oil outlet pipe is connected with the oil cavity, the gas cavity is connected with the air inlet pipe, the oil outlet pipe sets up on the back cover, the air inlet pipe sets up on the front cover, still be provided with the cylinder gas pipe for oil supply on the back cover, still be provided with flow sensor on the oil outlet pipe, the export part of oil outlet pipe is provided with the cover, can through the refitting on the basis of the structure of existing cylinder, simple structure can effectively realize the quantitative oil injection operation of lubricating oil, help the workshop staff accurate control single injection amount, avoid the problem caused by too much too little injection.

Description

Technical Field

[0001] This utility model relates to the field of oil injection, specifically to a quantitative oil injection device based on a cylinder structure. Background Technology

[0002] In the assembly process of thermostats, it is necessary to inject paste-like lubricating oil. Currently, the most common method of oil injection is manual injection. However, manual operation cannot accurately control the amount of oil injected. Insufficient oil injection will affect the use of the thermostat, while excessive oil injection will lead to waste of lubricating oil and increased costs. Therefore, it is necessary to design a quantitative oil injection device based on a cylinder structure to solve the above problems. Utility Model Content

[0003] To overcome the shortcomings of the prior art, this utility model provides a quantitative oil injection device based on a cylinder structure. It can be modified based on the existing cylinder structure, has a simple structure, is easy to produce and has low cost. It can effectively realize the quantitative oil injection operation of lubricating oil, which helps workshop workers to accurately control the amount of oil injected at one time and avoid problems caused by too much or too little oil injection.

[0004] Technical solution

[0005] A metering oil injection device based on a cylinder structure includes a front cover, a rear cover, and a cylinder disposed between the front cover and the rear cover. A piston is disposed inside the cylinder. The space between the piston and the rear cover in the cylinder is an oil chamber, and the space between the piston and the front cover in the cylinder is an air chamber. An oil outlet pipe is connected to the oil chamber, and an air inlet pipe is connected to the air chamber.

[0006] Furthermore, the oil outlet pipe is located on the rear cover, and the air intake pipe is located on the front cover.

[0007] Furthermore, the rear cover is also provided with a cylinder air pipe currently used for oil supply.

[0008] Furthermore, a flow sensor is also installed on the oil outlet pipe.

[0009] Furthermore, the outlet of the oil pipe is provided with a cap.

[0010] Furthermore, a pull rod is connected between the front cover and the rear cover.

[0011] Furthermore, the piston is also provided with a cylinder rod that penetrates the front cover.

[0012] Beneficial effects

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] It can be modified based on the existing cylinder structure. The structure is simple, easy to produce and low in cost. It can effectively realize the quantitative oil injection operation, which helps workshop staff to accurately control the amount of oil injected at one time and avoid problems caused by too much or too little oil. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a quantitative oil injection device based on a cylinder structure according to the present invention.

[0016] Attached icon number

[0017] 1. Rear cover, 2. Cylinder air pipe, 3. Oil outlet pipe, 4. Flow sensor, 5. Sealing cover, 6. Tie rod, 7. Cylinder barrel, 8. Front cover, 9. Cylinder rod, 10. Intake pipe, 11. Air chamber, 12. Piston, 13. Oil chamber. Detailed Implementation

[0018] To better illustrate the content of this utility model, the following description is provided in conjunction with the accompanying drawings and embodiments:

[0019] have Figure 1 As shown, this utility model discloses a quantitative oil injection device based on a cylinder structure, including a front cover 8, a rear cover 1, and a cylinder 7 disposed between the front cover 8 and the rear cover 1. A piston 12 is disposed inside the cylinder 7. The space between the piston 12 and the rear cover 1 in the cylinder 7 is an oil chamber 13, and the space between the piston 12 and the front cover 8 in the cylinder 7 is an air chamber 11. The oil chamber 13 is connected to an oil outlet pipe 3, and the air chamber 11 is connected to an air inlet pipe 10.

[0020] Furthermore, the oil outlet pipe 3 is disposed on the rear cover 1, and the air inlet pipe 10 is disposed on the front cover 8.

[0021] Furthermore, the rear cover 1 is also provided with a cylinder air pipe 2 for oil supply.

[0022] Furthermore, a flow sensor 4 is also installed on the oil outlet pipe 3.

[0023] Furthermore, the outlet of the oil pipe 3 is provided with a cap 5.

[0024] Furthermore, a pull rod 6 is also connected between the front cover 8 and the rear cover 1.

[0025] Furthermore, the piston 12 is also provided with a cylinder rod 9 that penetrates the front cover 8.

[0026] Specifically, when using it, first invert the whole thing, then inject oil into the oil chamber 13 through the cylinder air pipe 2. Excess air in the oil chamber 13 is discharged from the oil outlet pipe 3. After the oil is injected, seal the cylinder air pipe 2.

[0027] Then, when the whole unit is upright and oil is being added to the temperature controller, the air intake pipe 10 is controlled to introduce air into the air chamber 11, pushing the piston 12 down and discharging the lubricating oil in the oil chamber 13 from the oil outlet pipe 3. At this time, the temperature controller is manually moved closer to the outlet to discharge the lubricating oil onto the temperature controller. When the flow sensor 4 detects that the single flow is sufficient, it sends a signal back, at which point the air intake pipe 10 automatically stops introducing air and the oil filling stops.

[0028] The control program in the above process is implemented through programming and PLC control box, using existing technology. Since the program content is not a subject of utility model protection, this utility model will not describe it in detail.

[0029] When not in use for a long time, seal the oil outlet pipe 3 with the cap 5 to prevent lubricating oil from flowing out.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the technical solutions of this utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A metering oil injection device based on a cylinder structure, characterized in that: It includes a front cover (8), a rear cover (1) and a cylinder (7) disposed between the front cover (8) and the rear cover (1). A piston (12) is disposed in the cylinder (7). The space between the piston (12) and the rear cover (1) of the cylinder (7) is an oil chamber (13). The space between the piston (12) and the front cover (8) of the cylinder (7) is an air chamber (11). The oil chamber (13) is connected to an oil outlet pipe (3). The air chamber (11) is connected to an air inlet pipe (10).

2. The metering oil injection device based on a cylinder structure according to claim 1, characterized in that: The oil outlet pipe (3) is located on the rear cover (1), and the air inlet pipe (10) is located on the front cover (8).

3. The metering oil injection device based on a cylinder structure according to claim 2, characterized in that: The rear cover (1) is also provided with a cylinder air pipe (2) currently used for oil supply.

4. The metering oil injection device based on a cylinder structure according to claim 3, characterized in that: A flow sensor (4) is also installed on the oil outlet pipe (3).

5. A metering oil injection device based on a cylinder structure according to claim 4, characterized in that: The outlet of the oil pipe (3) is provided with a cap (5).

6. A metering oil injection device based on a cylinder structure according to claim 5, characterized in that: A pull rod (6) is also connected between the front cover (8) and the rear cover (1).

7. A metering oil injection device based on a cylinder structure according to claim 6, characterized in that: The piston (12) is also provided with a cylinder rod (9) that passes through the front cover (8).

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