Miniature plunger pump

Abstract

The utility model discloses a miniature plunger pump which comprises a motor, a mounting seat, a circuit cover, a mounting plate, an aluminum pipe sleeve, an outlet nut, a quick connection plug, a magnetic steel seat, an electromagnet, an eccentric wheel bearing, an eccentric wheel, an upper check ring, a bearing, a circuit Hall, a light-emitting feedback signal, a plastic cavity, a plunger, a plunger spring, a sealing column and an outlet spring. A circuit cover is arranged on one side of the mounting seat, a mounting plate is connected to the other side of the mounting seat, an aluminum pipe sleeve is arranged on the mounting plate, an outlet nut is arranged on the aluminum pipe sleeve, and a quick plug is connected to the outlet nut. According to the technical scheme, the miniature plunger pump is manufactured, the pump cavity is reduced, the miniature plunger pump is suitable for a small-flow working condition and a plastic pump cavity, and special fluid corrosion is avoided.

Description

Technical Field

[0001] The utility model relates to the field of plunger pumps, in particular to a micro plunger pump. Background Art

[0002] The plunger pump is an important device in the hydraulic system. It relies on the reciprocating movement of the plunger in the cylinder block to change the volume of the sealed working chamber to achieve oil absorption and oil pressure. The plunger pump has the advantages of high rated pressure, compact structure, high efficiency, and convenient flow regulation.

[0003] The plunger pump is widely used in occasions where high pressure, large flow rate, and flow rate need to be adjusted, such as hydraulic presses, construction machinery, and ships.

[0004] When the motor rotates, the eccentric wheel on the motor shaft rotates together. The eccentric wheel pushes the plunger and advances the plunger into the pump cavity. When the eccentric wheel releases force, the spring bounces the plunger away, and the plunger exits the pump cavity, and this reciprocating motion repeats. The circuit Hall senses the magnetic steel signal to detect the motor speed. The original plunger pump has a large pump cavity and is not suitable for small flow rate working conditions.

[0005] Therefore, a micro plunger pump is needed. Content of the Utility Model

[0006] In order to solve the above problems, the utility model provides a micro plunger pump.

[0007] A micro plunger pump in the utility model includes a motor, a mounting seat, a circuit cover, a mounting plate, an aluminum tube sleeve, an outlet nut, a quick-connect plug, a magnetic steel seat, an electromagnet, an eccentric wheel bearing, an eccentric wheel, an upper retaining ring, a bearing, a circuit Hall, a light-emitting feedback signal, a plastic cavity, a plunger, a plunger spring, a sealing column, and an outlet spring. The motor is provided with a mounting seat. One side of the mounting seat is provided with a circuit cover. The other side of the mounting seat is connected with a mounting plate. The mounting plate is provided with an aluminum tube sleeve. The aluminum tube sleeve is provided with an outlet nut. The outlet nut is connected with a quick-connect plug.

[0008] The motor is provided with a magnetic steel seat. The side of the magnetic steel seat is provided with an electromagnet. The magnetic steel seat is provided with an eccentric wheel bearing. The eccentric wheel bearing is internally provided with an eccentric wheel. The eccentric wheel is sleeved on the magnetic steel seat. The eccentric wheel bearing is provided with an upper retaining ring. The upper retaining ring is provided with a bearing. The side of the mounting seat is also provided with a circuit Hall. The circuit Hall corresponds to the electromagnet. The circuit cover covers the circuit Hall. The circuit cover is provided with a light-emitting feedback signal.

[0009] The mounting plate is provided with a plastic cavity. The plastic cavity is connected with a plunger. The plunger is provided with a plunger spring. The plastic cavity is connected with the other side of the mounting seat. The aluminum tube sleeve is internally provided with a sealing column. The outlet nut is connected with an outlet spring.

[0010] In the above solution, a first screw is provided on the circuit cover, and the first screw fixes the circuit cover on the mounting seat.

[0011] In the above solution, a motor screw is provided on the mounting seat, and the motor screw locks the mounting seat on the motor.

[0012] In the above solution, a cavity screw is provided on the plastic cavity, and the cavity screw is used to lock the plastic cavity.

[0013] The advantages and beneficial effects of the present utility model are as follows: The present utility model provides a micro plunger pump. The pump cavity is made smaller, suitable for small flow conditions, and the plastic pump cavity can avoid corrosion by special fluids. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is Figure 1 an exploded view of

[0017] In the figure: 1. Motor 2. Mounting seat 3. Circuit cover 4. Mounting plate

[0018] 5. Aluminum tube sleeve 6. Outlet nut 7. Quick-connect plug 8. Magnet seat

[0019] 9. Electromagnet 10. Eccentric wheel bearing 11. Eccentric wheel 12. Upper retaining ring

[0020] 13. Bearing 14. Circuit hall 15. Light-emitting feedback signal 16. Plastic cavity

[0021] 17. Plunger 18. Plunger spring 19. Sealing column 20. Outlet spring

[0022] 21. First screw 22. Motor screw 23. Cavity screw DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will further describe the specific embodiments of the present utility model in conjunction with the drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.

[0024] AsFigure 1 , Figure 2 As shown in Figure 2 , the utility model is a micro plunger pump, which includes a motor 1, a mounting seat 2, a circuit cover 3, a mounting plate 4, an aluminum tube sleeve 5, an outlet nut 6, a quick-connect plug 7, a magnet seat 8, an electromagnet 9, an eccentric wheel bearing 10, an eccentric wheel 11, an upper retaining ring 12, a bearing 13, a circuit Hall 14, a light-emitting feedback signal 15, a plastic cavity 16, a plunger 17, a plunger spring 18, a sealing column 19 and an outlet spring 20. A mounting seat 2 is provided on the motor 1. A circuit cover 3 is provided on one side of the mounting seat 2. A mounting plate 4 is connected to the other side of the mounting seat 2. An aluminum tube sleeve 5 is provided on the mounting plate 4. An outlet nut 6 is provided on the aluminum tube sleeve 5. A quick-connect plug 7 is connected to the outlet nut 6;

[0025] A magnet seat 8 is provided on the motor 1. An electromagnet 9 is provided on the side of the magnet seat 8. An eccentric wheel bearing 10 is provided on the magnet seat 8. An eccentric wheel 11 is provided inside the eccentric wheel bearing 10. The eccentric wheel 11 is sleeved on the magnet seat 8. An upper retaining ring 12 is provided on the eccentric wheel bearing 10. A bearing 13 is provided on the upper retaining ring 12. A circuit Hall 14 is further provided on the side surface of the mounting seat 2. The circuit Hall 14 corresponds to the electromagnet 9. The circuit cover 3 covers the circuit Hall 14. A light-emitting feedback signal 15 is provided on the circuit cover 3;

[0026] A plastic cavity 16 is provided on the mounting plate 4. A plunger 17 is connected to the plastic cavity 16. A plunger spring 18 is provided on the plunger 17. The plastic cavity 16 is connected to the other side of the mounting seat 2. A sealing column 19 is provided inside the aluminum tube sleeve 5. An outlet spring 20 is connected to the outlet nut 6.

[0027] A first screw 21 is provided on the circuit cover 3. The first screw 21 fixes the circuit cover 3 on the mounting seat 2.

[0028] A motor screw 22 is provided on the mounting seat 2. The motor screw 22 locks the mounting seat 2 on the motor 1.

[0029] A cavity screw 23 is provided on the plastic cavity 16. The cavity screw 23 is used to lock the plastic cavity 16.

[0030] Motor 1: Driving part; Mounting seat 2: Connects the motor 1 and other parts; Circuit cover 3: Protects the circuit from external interference; Mounting plate 4: Connects the pump chamber to the mounting seat 2; Aluminum tube sleeve 5: Covers the plastic pump chamber to prevent plastic expansion and deformation; Outlet nut 6: Presses the outlet spring 20; Quick connector 7: Inlet and outlet port adapter; Magnet seat 8: Used to mount the electromagnet 9; Electromagnet 9: Provides magnetic induction for the circuit Hall; Eccentric wheel bearing 10: Avoids hard friction when the bearing 13 rotates; Eccentric wheel 11: Pushes the plunger 17 after rotation; Upper retaining ring 12: Blocks the eccentric wheel 11; Bearing 13: Supports the top of the motor 1 shaft; Circuit Hall 14: Induces the magnetism of the electromagnet 9; Plastic cavity 16: Inner cavity through which the fluid passes; Plunger 17: Moves axially; Plunger spring 18: Ejects the plunger 17 from the pump chamber; Sealing column 19: Seals the outlet; Outlet spring 20: Presses the sealing column 19.

[0031] When the motor 1 rotates, the eccentric wheel 11 on the motor 1 shaft rotates together. The eccentric wheel 11 pushes the plunger 17 and advances the plunger 17 into the pump chamber (the pump chamber is formed between the plastic cavity 16 and the mounting seat 2). The plunger 17 pushes the fluid in the pump chamber and squeezes open the sealing column 19, and the fluid flows out. When the eccentric wheel 11 loses force, the plunger spring 18 ejects the plunger 17, and the plunger 17 withdraws from the pump chamber. At the same time, the outlet spring 20 presses the sealing column 19 to seal the outlet, and this movement is repeated. The circuit Hall 14 senses the signal of the electromagnet 9, and the light-emitting feedback signal 15 feeds back the signal.

[0032] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A micro plunger pump, characterized in that, It includes a motor, a mounting base, a circuit cover, a mounting plate, an aluminum tube sleeve, an outlet nut, a quick-connect plug, a magnet seat, an electromagnet, an eccentric wheel bearing, an eccentric wheel, an upper retaining ring, a bearing, a circuit Hall, a light-emitting feedback signal, a plastic cavity, a plunger, a plunger spring, a sealing column and an outlet spring. A mounting base is provided on the motor. A circuit cover is provided on one side of the mounting base. A mounting plate is connected to the other side of the mounting base. An aluminum tube sleeve is provided on the mounting plate. An outlet nut is provided on the aluminum tube sleeve. A quick-connect plug is connected to the outlet nut; A magnet seat is provided on the motor. An electromagnet is provided on the side of the magnet seat. An eccentric wheel bearing is provided on the magnet seat. An eccentric wheel is provided inside the eccentric wheel bearing. The eccentric wheel is sleeved on the magnet seat. An upper retaining ring is provided on the eccentric wheel bearing. A bearing is provided on the upper retaining ring. A circuit Hall is also provided on the side surface of the mounting base. The circuit Hall corresponds to the electromagnet. The circuit cover covers the circuit Hall. A light-emitting feedback signal is provided on the circuit cover; A plastic cavity is provided on the mounting plate. A plunger is connected to the plastic cavity. A plunger spring is provided on the plunger. The plastic cavity is connected to the other side of the mounting base. A sealing column is provided inside the aluminum tube sleeve. An outlet spring is connected to the outlet nut.

2. The miniature plunger pump according to claim 1, characterized in that, A first screw is provided on the circuit cover. The first screw fixes the circuit cover on the mounting base.

3. A micro plunger pump according to claim 1, characterized in that, A motor screw is provided on the mounting base. The motor screw locks the mounting base on the motor.

4. A micro-plunger pump according to claim 1, characterized in that, A cavity screw is provided on the plastic cavity. The cavity screw is used to lock the plastic cavity.

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