Backflushing type vacuum liquid filling device
By designing a backflushing vacuum filling device, and utilizing components such as a one-way switching valve and a booster pump, continuous filling and oil recovery are achieved, solving the problem that existing devices cannot vent air, and improving filling efficiency and environmental friendliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-10
AI Technical Summary
Existing filling devices use an intermittent filling method, which cannot effectively remove air from the equipment, resulting in insufficient oil filling and poor practicality.
A backflushing vacuum filling device was designed, which uses a one-way switching valve to control the filling program and rate, and combines a booster pump and a gear rack structure driven by a motor to achieve continuous filling and recovery of leaked oil, and cleans the filling pipe through a flexible oil suction sleeve.
It effectively removes air from the equipment, ensures full oil filling, reduces oil loss, and achieves environmentally friendly oil recycling.
Smart Images

Figure CN224105550U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to liquid filling technology field, concretely is backflushing type vacuum liquid filling device. BACKGROUND
[0002] Many devices need to be filled with oil, especially disc-shaped oil pipelines, which are widely used in various industrial environments.
[0003] The existing liquid filling device adopts intermittent filling mode, which cannot empty the air in the device, causing insufficient oil filling, and poor practicability. Therefore, it is necessary to design a backflushing type vacuum liquid filling device with strong practicability. INVENTION CONTENTS
[0004] The utility model aims at providing backflushing type vacuum liquid filling device to solve the problems in the above background technology.
[0005] In order to solve the above technical problem, the utility model provides the following technical scheme: backflushing type vacuum liquid filling device, including oil storage tank, the side of oil storage tank is provided with valve frame, the top of oil storage tank is installed with backflow valve and booster pump respectively, the top of oil storage tank is connected with air inlet pipe, the top of valve frame has oil cavity, and the bottom of oil cavity is connected with a plurality of one-way switch valves, the bottom of one-way switch valve is connected with liquid filling pipe.
[0006] According to the above technical scheme, the bottom of the liquid filling pipe is provided with a connecting head through screw thread, one end of the connecting head is connected with the liquid filling device to be filled.
[0007] According to the above technical scheme, the side wall of the valve frame is provided with a sliding groove, and the sliding groove is slidably connected with a sliding seat, the inner wall of the two sides of the valve frame is provided with a rack, the inner wall of the two ends of the sliding seat is rotatably provided with a gear, and the rack is engaged with the gear.
[0008] According to the above technical scheme, the bottom of the valve frame is provided with a collecting groove, and the collecting groove and the backflow valve are cooperating structures.
[0009] According to the above technical scheme, the sliding seat is uniformly provided with mounting holes, and a flexible oil suction sleeve is movably embedded in the mounting hole, and the inner wall of the flexible oil suction sleeve is in contact with the liquid filling pipe.
[0010] According to the above technical scheme, one end of the gear is movably connected with a motor through a connecting shaft, and the motor is fixedly installed on the side wall of the sliding seat.
[0011] Compared with the prior art, the utility model has the advantages that: the utility model discloses, through one -way switch valve control liquid filling procedure opening and closing and liquid filling rate, this kind of persistent liquid filling mode can empty the air in equipment. BRIEF DESCRIPTION OF DRAWINGS
[0012] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:
[0013] Fig. 1 It is the whole structure schematic diagram of the utility model;
[0014] Fig. 2 It is the valve frame local structure schematic diagram of the utility model;
[0015] Fig. 3 It is the inside section view structure schematic diagram of the utility model's sliding seat;
[0016] In the drawing: 1, oil storage tank;2, valve frame;3, liquid filling equipment;11, backflow valve;12, booster pump;13, air inlet pipe;21, sliding seat;211, handle;22, collection groove;23, connecting pipe;24, one-way switch valve;25, liquid filling pipe;26, rack;27, gear;271, motor;28, flexible oil suction cover;251, connecting head. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments.Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.
[0018] Please refer to Figs. 1-3 The utility model provides technical scheme: backflushing type vacuum liquid filling device, one side of oil storage tank 1 is provided with valve frame 2, and the top of oil storage tank 1 is respectively installed with backflow valve 11 and booster pump 12, and the top of oil storage tank 1 is connected with air inlet pipe 13, and the top of valve frame 2 has oil cavity, and the bottom of oil cavity is connected with a plurality of one-way switch valves 24, and the bottom of one-way switch valve 24 is connected with liquid filling pipe 25, one-way switch valve 24 can be one-way conducted when being opened, and is cut off when being closed, provides external gas source through air inlet pipe 13, and extrudes oil liquid to valve frame 2 through booster pump 12 pressure boost;
[0019] The bottom of the liquid filling pipe 25 is provided with a connector 251 by screwing, one end of the connector 251 is connected with the equipment to be filled with liquid 3, and the oil liquid is filled through the connector 251 to prevent leakage.
[0020] The side wall of the valve frame 2 is correspondingly provided with a sliding groove, and the sliding groove is slidably sleeved with a sliding seat 21, the inner walls of the two sides of the valve frame 2 are correspondingly provided with a rack 26, the inner walls of the two ends of the sliding seat 21 are correspondingly rotatably provided with a gear 27, the rack 26 is engaged with the gear 27, and the sliding seat 21 is slid up and down by rotating the gear 27, so as to facilitate cleaning.
[0021] The bottom of the valve frame 2 is provided with a collecting groove 22, and the collecting groove 22 is a cooperative structure with the backflow valve 11, the leaked oil liquid enters the collecting groove 22, and after the collection is completed, it is re-injected into the backflow valve 11.
[0022] The sliding seat 21 is uniformly provided with mounting holes, and flexible oil suction sleeves 28 are movably embedded in the mounting holes, the inner walls of the flexible oil suction sleeves 28 are in contact with the liquid filling pipe 25, and the outside of the liquid filling pipe 25 is cleaned and oil is sucked by the flexible oil suction sleeves 28;
[0023] One end of the gear 27 is movably connected with a motor 271 through a connecting shaft, and the motor 271 is fixedly installed on the side wall of the sliding seat 21, and the gear 27 is rotated by starting the motor 271, and the sliding seat 21 is powered to slide up and down.
[0024] In example 1, the gas source pressure fills in the oil tank, the pressure in the sealed space pushes the oil liquid at the bottom of the oil tank to fill into the equipment through the liquid conveying pipe, the one-way switch valve controls the opening and closing of the liquid filling process and the liquid filling rate, and this continuous liquid filling mode can empty the air in the equipment. The part of the oil liquid leaked at the oil discharge port of the equipment can be recycled, which is not only environmentally friendly but also reduces the loss.
[0025] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.
[0026] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.
Claims
1. A backflushing liquid vacuum filling device comprising a reservoir (1), characterized in that: The side of the oil storage tank (1) is provided with a valve frame (2), the top of the oil storage tank (1) is respectively provided with a backflow valve (11) and a booster pump (12), the top of the oil storage tank (1) is throughly connected with an air inlet pipe (13), the top of the valve frame (2) has an oil cavity, the bottom of the oil cavity is throughly connected with a plurality of one-way switch valves (24), the bottom of the one-way switch valve (24) is throughly connected with a liquid filling pipe (25).
2. The backflushed liquid vacuum filling device according to claim 1, characterized in that The bottom of the liquid filling pipe (25) is through screwing connected with a connector (251), one end of the connector (251) is throughly connected with a liquid filling equipment (3).
3. The backflushed liquid filling device according to claim 2, characterized in that: The side wall of the valve frame (2) is correspondingly provided with a sliding groove, and the sliding groove is slidably connected with a sliding seat (21), the inner wall of the two sides of the valve frame (2) is correspondingly provided with a rack (26), the inner wall of the two ends of the sliding seat (21) is correspondingly rotatably connected with a gear (27), and the rack (26) is engaged with the gear (27).
4. The backflushed liquid filling device according to claim 3, characterized in that: The bottom of the valve frame (2) is provided with a collecting groove (22), and the collecting groove (22) and the backflow valve (11) are a matching structure.
5. The backflushed liquid filling device according to claim 4, characterized in that: The sliding seat (21) is uniformly provided with a mounting hole, and a flexible oil suction sleeve (28) is movably embedded in the mounting hole, and the inner wall of the flexible oil suction sleeve (28) is in contact with the liquid filling pipe (25).
6. The backflushed liquid vacuum filling device according to claim 5, characterized in that One end of the gear (27) is movably connected with a motor (271) through a connecting shaft, and the motor (271) is fixedly installed on the side wall of the sliding seat (21).