Quantitative oil injection device for oil type booster pump

Abstract

The utility model discloses an oil type booster pump quantitative oil injection device which comprises an oil storage hopper arranged on a moving trolley, a stop valve is arranged on the lower portion of the oil storage hopper, the lower portion of the stop valve is connected with a one-way liquid inlet valve through an oil guide pipe, and the outlet end of the one-way liquid inlet valve is connected with a three-way connector. The utility model relates to the technical field of oil filling of oil type booster pumps, an oil filling head is inserted into an oil filling port, the oil filling head is clamped and fixed on a flange position of the oil filling port through a clamping limiting assembly, a stop valve is opened, the oil filling port is connected with a three-way connector, and a pump drainage control assembly is arranged on one side of the oil filling cavity. The pumping and drainage control assembly is started to generate negative pressure in the oil injection cavity, oil in the oil storage hopper is sucked into the oil injection cavity through the one-way liquid inlet valve and the three-way connector under the action of the negative pressure, and after oil pumping is completed, the pumping and drainage control assembly is controlled to act reversely. Oil is injected into the pump body through the three-way connector, the one-way drain valve, the oil injection pipe, the electromagnetic flowmeter and the oil injection head.

Description

Technical Field

[0001] The utility model relates to the technical field of oil-type booster pump oil replenishment, in particular to a quantitative oil injection device for an oil-type booster pump. Background Art

[0002] The oil-type booster pump is a type of jet vacuum pump. It operates in the medium vacuum region and uses low-pressure, high-speed oil vapor as its working medium. The pumping process is a process in which the pumped gas diffuses into the oil vapor jet and is carried to the pump outlet for discharge. It is composed of various levels of pump bodies, nozzles, pump cores, heaters, boiler bodies and other components. During the process of the pump working oil being heated at high temperature to form oil vapor, part of the pump working oil is carried into the front-stage vacuum system by the high-temperature vapor, exacerbating the loss of the pump working oil and affecting the operational stability of the pump. Therefore, the working oil needs to be replenished regularly. In the existing technology, the filling of working oil mainly relies on manual filling with an oil pot. The filling amount is unstable and the efficiency is low, which affects production. The oil is also prone to splashing during the filling process, causing waste. In view of this, in-depth research on the above-mentioned problems led to the creation of this case. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present invention provides a quantitative oil injection device for an oil-type booster pump, which solves the problems raised in the background art.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an oil-type booster pump quantitative oil filling device, comprising an oil storage hopper arranged on a mobile trolley, a stop valve provided at the lower part of the oil storage hopper, a one-way liquid inlet valve connected to the lower part of the stop valve through an oil guide pipe, the outlet end of the one-way liquid inlet valve is connected to a three-way joint, one end of the three-way joint is connected to an oil filling chamber, a pumping control component is provided on one side of the oil filling chamber, one end of the pumping control component extends into the oil filling chamber, a one-way drain valve is installed on the other end of the three-way joint, the outlet end of the one-way drain valve is connected to an oil filling pipe, an electromagnetic flowmeter is installed at one end of the oil filling pipe, an oil filling head is provided at one end of the electromagnetic flowmeter, and a clamping limit assembly is provided on the outside of the oil filling head.

[0005] The oil filling cavity is a cylindrical cavity with a conical head at one end and an open structure at the other end.

[0006] The above-mentioned pumping and exhaust control assembly includes a multi-stage cylinder, a guide member, a movable seat and a piston push-pull member. The multi-stage cylinder is arranged on a movable trolley and is located below the oil filling chamber. The guide member is arranged on one side of the multi-stage cylinder. The movable seat is installed on the movable end of the guide member and is connected to the telescopic end of the multi-stage cylinder. One end of the piston push-pull member is inserted into the oil filling chamber and is slidably sealed with the inner wall of the oil filling chamber, and the other end is connected to the movable seat.

[0007] The above-mentioned piston push-pull member includes a rubber piston and a pull rod. The rubber piston is inserted into the oil filling cavity and the outer ring surface is slidingly sealed with the inner wall of the oil filling cavity. One end of the pull rod is connected to the rubber piston and the other end is connected to the movable seat.

[0008] The guide member includes a guide rail and a slider. The guide rail is arranged on the moving trolley and is arranged in parallel with the multi-stage cylinder. The slider is slidably sleeved on the guide rail and connected to the moving seat.

[0009] The above-mentioned clamping limit assembly includes an annular seat, a U-shaped block and a clamping piece. The annular seat is fixedly welded to the outside of the oil filling head, the U-shaped block is welded to the outer wall of the annular seat along an annular array, and the clamping piece is rotatably set on the U-shaped block.

[0010] The above-mentioned clamping part includes a fixed shaft, an L-shaped claw and a torsion spring. The fixed shaft is set on the U-shaped block. The middle section of the L-shaped claw is rotatably sleeved on the fixed shaft. The torsion spring is sleeved on the fixed shaft and one end is connected to the U-shaped block and the other end is connected to the L-shaped claw.

[0011] The utility model provides a quantitative oil filling device for an oil-type booster pump. It has the following beneficial effects: the quantitative oil filling device for an oil-type booster pump sets an oil storage hopper on a mobile trolley. When the oil-type booster pump needs to be refilled with oil, the mobile trolley is pushed to move the oil storage hopper to the vicinity of the oil filling port of the pump body, the top cover of the oil filling port is removed, the oil filling head is inserted into the oil filling port and the oil filling head is fixed to the oil filling port flange position by using a clamping limit component, the stop valve is opened, and the pumping control component is started to generate negative pressure in the oil filling chamber. Under the action of the negative pressure, the oil in the oil storage hopper is sucked into the oil filling chamber through the one-way liquid inlet valve and the three-way joint. After the oil pumping is completed, the pumping control component is controlled to move in reverse, and the oil is filled into the pump body through the three-way joint, the one-way liquid discharge valve, the oil filling pipe, the electromagnetic flowmeter and the oil filling head. The electromagnetic flowmeter can realize accurate monitoring of the oil filling amount. The utility model has a simple structure, a high degree of automation, and a stable and controllable oil filling amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the main structure of an oil-type booster pump quantitative oil injection device described in the present utility model.

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the position of the oil filling head of the utility model.

[0014] Figure 3 This is a schematic cross-sectional view of the oil filling head of the utility model.

[0015] In the figure: 1. Moving trolley; 2. Oil storage hopper; 3. Stop valve; 4. One-way liquid inlet valve; 5. T-joint; 6. Oil filling chamber; 7. One-way liquid discharge valve; 8. Oil filling pipe; 9. Electromagnetic flowmeter; 10. Oil filling head; 11. Multi-stage cylinder; 12. Moving seat; 13. Rubber piston; 14. Pull rod; 15. Guide rail; 16. Slider; 17. Ring seat; 18. U-shaped block; 19. Fixed shaft; 20. L-shaped claw; 21. Torsion spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example: In conjunction with the instructions attached Figure 1-3 It can be seen that the present application specifically designs an oil-type booster pump quantitative oil filling device, comprising an oil storage hopper 2 arranged on a mobile trolley 1, a stop valve 3 being arranged at the lower part of the oil storage hopper 2, a one-way liquid inlet valve 4 being connected to the lower part of the stop valve 3 through an oil guide pipe, the outlet end of the one-way liquid inlet valve 4 being connected to a three-way joint 5, one end of the three-way joint 5 being connected to an oil filling chamber 6, a pumping control component being arranged on one side of the oil filling chamber 6, one end of the pumping control component extending into the oil filling chamber 6, a one-way drain valve 7 being installed at the other end of the three-way joint, the outlet end of the one-way drain valve 7 being connected to an oil filling pipe 8, an electromagnetic flowmeter 9 being installed at one end of the oil filling pipe 8, an oil filling head 10 being arranged at one end of the electromagnetic flowmeter 9, a clamping limit assembly being arranged on the outer side of the oil filling head 10, the oil storage hopper 2 being arranged on the mobile trolley 1, When the oil-type booster pump is replenishing oil, push the mobile trolley 1 to move the oil storage bucket 2 to the vicinity of the refueling port of the pump body, remove the top cover of the refueling port, insert the oil filling head 10 into the oil filling port and use the clamping limit assembly to clamp the oil filling head 10 on the oil filling port flange position, open the stop valve 3, start the pumping control assembly to generate negative pressure in the oil filling chamber 6, and under the action of the negative pressure, the oil in the oil storage bucket 2 is sucked into the oil filling chamber 6 through the one-way liquid inlet valve 4 and the three-way joint 5. After the oil pumping is completed, the pumping control assembly is controlled to move in reverse, and the oil is added into the pump body through the three-way joint 5, the one-way drain valve 7, the oil filling pipe 8, the electromagnetic flowmeter 9 and the oil filling head 10. The electromagnetic flowmeter 9 can realize accurate monitoring of the oil filling amount. It has a simple structure, a high degree of automation, and a stable and controllable refueling amount.

[0018] During the specific implementation process, the above-mentioned oil filling chamber 6 is a cylindrical cavity with a conical head at one end and an open structure at the other end, wherein the pumping control component includes a multi-stage cylinder 11, a guide, a movable seat 12 and a piston push-pull member. The multi-stage cylinder 11 is arranged on the movable trolley 1 and is located below the oil filling chamber 6. The guide is arranged on one side of the multi-stage cylinder 11. The movable seat 12 is installed on the movable end of the guide and is connected to the telescopic end of the multi-stage cylinder 11. One end of the piston push-pull member is inserted into the oil filling chamber 6 and is slidably sealed with the inner wall of the oil filling chamber 6, and the other end is connected to the movable seat 12; the above-mentioned piston push-pull member includes a rubber piston 13 and a pull rod 14. The rubber piston 13 is inserted into the oil filling chamber 6 and the outer ring surface is slidably sealed with the inner wall of the oil filling chamber 6. One end of the pull rod 14 is connected to the rubber piston 13, and the other end is connected to the movable seat 12; the above-mentioned guide member includes a guide rail 15 and a slider 16. The guide rail 15 is arranged on the movable trolley 1 and is connected to the multi-stage cylinder When the piston rod 13 is moved away from the tee joint 5, a negative pressure is generated in the oil filling chamber 6, thereby the working oil in the oil storage hopper 2 is sucked into the oil filling chamber 6 through the stop valve 3, the oil guide pipe, the one-way liquid inlet valve 4 and the tee joint. When the rubber piston 13 moves toward the side close to the tee joint, the working oil in the oil filling chamber 6 is injected into the pump body through the tee joint, the one-way drain valve 7, the oil filling pipe 8, the electromagnetic flowmeter 9 and the oil filling head 10 under the action of pressure. The stroke of the multi-stage cylinder 11 is precisely controllable and the operation is stable. The measurement of the oil filling amount is more accurate when used with the electromagnetic flowmeter 9.

[0019] In the specific implementation process, the above-mentioned clamping limit assembly includes an annular seat 17, a U-shaped block 18 and a clamping piece. The annular seat 17 is fixedly welded to the outside of the oil filling head 10, and the U-shaped block 18 is welded to the outer wall of the annular seat 17 along the annular array. The clamping piece is rotatably arranged on the U-shaped block 18, wherein the clamping piece includes a fixed shaft 19, an L-shaped claw 20 and a torsion spring 21. The fixed shaft 19 is arranged on the U-shaped block 18, and the middle section of the L-shaped claw 20 is rotatably sleeved on the fixed shaft 19. The torsion spring 21 is sleeved on the fixed shaft 19 and one end is connected to the U-shaped The L-shaped claw 20 is connected to the block 18 and the other end is connected to the L-shaped claw 20. When in use, the operator holds the top of the L-shaped claw 20, so that the L-shaped claw 20 is flipped under the limiting action of the fixed shaft 19, and the lower part of the oiling head 10 is inserted into the oiling port. The operator releases the operator's hand, and the L-shaped claw 20 rotates under the reset elastic force of the torsion spring 21, so that the lower part of the L-shaped claw 20 is clamped to the lower end of the upper flange of the oiling port, realizing the clamping fit between the oiling head 10 and the oiling port, improving the oiling stability, and avoiding oil spilling.

[0020] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative oil filling device for an oil-type booster pump, comprising an oil storage hopper arranged on a mobile trolley, characterized in that: A stop valve is provided at the lower part of the oil storage hopper, and a one-way liquid inlet valve is connected to the lower part of the stop valve through an oil guide pipe. The outlet end of the one-way liquid inlet valve is connected to a three-way joint, and one end of the three-way joint is connected to an oil filling chamber. A pumping control component is provided on one side of the oil filling chamber, and one end of the pumping control component extends into the oil filling chamber. A one-way drain valve is installed at the other end of the three-way joint, and the outlet end of the one-way drain valve is connected to an oil filling pipe, an electromagnetic flowmeter is installed at one end of the oil filling pipe, an oil filling head is provided at one end of the electromagnetic flowmeter, and a clamping limit assembly is provided on the outside of the oil filling head.

2. The quantitative oil injection device of an oil-type booster pump according to claim 1, characterized in that: The oil filling cavity is a cylindrical cavity with a conical head at one end and an open structure at the other end.

3. The quantitative oil injection device of an oil-type booster pump according to claim 2, characterized in that: The pumping and exhaust control assembly includes a multi-stage cylinder, a guide member, a movable seat and a piston push-pull member. The multi-stage cylinder is arranged on a movable trolley and is located below the oil filling chamber. The guide member is arranged on one side of the multi-stage cylinder. The movable seat is installed on the movable end of the guide member and is connected to the telescopic end of the multi-stage cylinder. One end of the piston push-pull member is inserted into the oil filling chamber and is slidably sealed with the inner wall of the oil filling chamber, and the other end is connected to the movable seat.

4. The quantitative oil injection device of an oil-type booster pump according to claim 3, characterized in that: The piston push-pull member includes a rubber piston and a pull rod. The rubber piston is inserted into the oil injection cavity and the outer ring surface is slidably sealed with the inner wall of the oil injection cavity. One end of the pull rod is connected to the rubber piston and the other end is connected to the movable seat.

5. The quantitative oil injection device of an oil-type booster pump according to claim 3, characterized in that: The guide member includes a guide rail and a slider. The guide rail is arranged on the moving trolley and is arranged in parallel with the multi-stage cylinder. The slider is slidably sleeved on the guide rail and connected to the moving seat.

6. The quantitative oil injection device of an oil-type booster pump according to claim 1, characterized in that: The clamping limit assembly includes an annular seat, a U-shaped block and a clamping piece. The annular seat is fixedly welded to the outside of the oil filling head, the U-shaped block is welded to the outer wall of the annular seat along an annular array, and the clamping piece is rotatably set on the U-shaped block.

7. The quantitative oil injection device for an oil-type booster pump according to claim 6, characterized in that: The clamping part includes a fixed shaft, an L-shaped claw and a torsion spring. The fixed shaft is set on the U-shaped block. The middle section of the L-shaped claw is rotatably sleeved on the fixed shaft. The torsion spring is sleeved on the fixed shaft and one end is connected to the U-shaped block and the other end is connected to the L-shaped claw.

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