Dual-seal miniature gear pump

Abstract

The utility model discloses a dual-seal miniature gear pump which comprises a working box, an air outlet hole is formed in the working box, a silencing cylinder is arranged in the air outlet hole, silencing holes are formed in the silencing cylinder, an inclined plate is fixedly connected to the inner surface of the working box, a collecting hole is formed in the working box, and a water inlet is formed in the working box. A connecting pipe is arranged in the collecting hole, and a collecting box is detachably connected to the lower surface of the connecting pipe. A conveying groove is formed in the pump body, a driving gear is arranged in the conveying groove and connected with a driven gear in an engaged mode, a power device is fixedly connected to the lower surface of the pump body, a power shaft is fixedly connected to the output end of the power device, and the end, away from the power device, of the power shaft is fixedly connected with the driving gear. By means of the structure, the effect of reducing noise caused when the double-seal miniature gear pump works and the effect of collecting leaked liquid caused when the double-seal miniature gear pump works are achieved, and waste of the liquid is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of double sealing micro gear pump, especially to a double sealing micro gear pump. BACKGROUND

[0002] The sealing of the existing double sealing micro gear pump adopts packing seal and rubber seal, and end face seal is also used in some occasions with strict leakage requirements, but the rotating speed of the micro gear pump is generally high, liquid leakage will cause cost increase and liquid waste, such as the double sealing micro gear pump disclosed in Chinese patent with the application number CN01213137.7, the sealing ring between the front and rear cover plates is arranged, and the pump body in the cavity of the front and rear cover plates is arranged, the lower end of the pump body is provided with a driving shaft connected with the driving gear, and the upper end of the driving gear is provided with a driven gear connected with the driven shaft, characterized in that an automatic pressure relief device is arranged between the front cover plate and the pump body, and a sealing device is arranged between the rear cover plate and the pump body, but the sound caused by the working of the micro gear pump affects the use effect of the user during use. SUMMARY

[0003] The utility model discloses a double sealing micro gear pump, which is provided with a sound reduction cylinder and a sound reduction hole in the working tank to achieve the sound reduction effect of the noise caused by the working of the double sealing micro gear pump, and is provided with an inclined plate, a connecting pipe and a collection tank in the working tank to achieve the liquid leakage collection effect caused by the working of the double sealing micro gear pump, thereby avoiding liquid waste.

[0004] The utility model discloses a double sealing micro gear pump, which is provided with a sound reduction cylinder and a sound reduction hole in the working tank to achieve the sound reduction effect of the noise caused by the working of the double sealing micro gear pump, and is provided with an inclined plate, a connecting pipe and a collection tank in the working tank to achieve the liquid leakage collection effect caused by the working of the double sealing micro gear pump, thereby avoiding liquid waste.

[0005] The utility model discloses a double -sealed miniature gear pump, support plate is fixedly connected with the lower surface of working tank, support column is fixedly connected with the lower surface of support plate, and through above -mentioned device, the support effect of working tank is realized.

[0006] The utility model discloses a double -sealed miniature gear pump, and the inside of support board is provided with collection hole, and the inside of connecting pipe is provided with collection box.

[0007] The utility model discloses a double -sealed miniature gear pump, and the inside of pump body is provided with liquid inlet, and the inside of liquid inlet is provided with liquid inlet pipe, and through above -mentioned device, the liquid that needs to transport is entered into pump body from liquid inlet pipe.

[0008] The utility model discloses a double -sealed miniature gear pump, and the inside of pump body is provided with liquid outlet, and the inside of liquid outlet pipe is provided with liquid outlet, and through above -mentioned device, the liquid is transported from pump body.

[0009] The utility model discloses a double -sealed miniature gear pump, and the inside of liquid inlet, liquid outlet is provided with first sealing ring, second sealing ring, and the inside of liquid inlet pipe, liquid outlet pipe is provided with first sealing ring, second sealing ring, and through above -mentioned device, the double -sealed effect of miniature gear pump is realized.

[0010] The utility model discloses a double -sealed miniature gear pump, and the inside of working tank is provided with limit groove, and the limit groove is movably connected with liquid inlet pipe, liquid outlet pipe, and through above -mentioned device, the whole pump body can be placed in working tank flexibly.

[0011] The utility model discloses a double -sealed miniature gear pump, and the power device is motor, and the output end of motor is fixedly connected with power shaft, and through above -mentioned device, the power device provides power shaft. Beneficial effects

[0012] 1, compared with the prior art, the double -sealed miniature gear pump is provided with silencer and silencer hole in working tank, realizes the noise -reducing effect caused by the working of double -sealed miniature gear pump.

[0013] 2, compared with the prior art, the double -sealed miniature gear pump is provided with inclined plate, connecting pipe and collection tank in working tank, realizes the liquid leakage collection effect caused by the working of double -sealed miniature gear pump, and avoids the waste of liquid. DRAWINGS

[0014] The utility model is further illustrated below in connection with the drawings and examples;

[0015] Figure 1 It is the main body structure diagram of the double -sealed miniature gear pump of the utility model;

[0016] Figure 2 Figure 2 is a right sectional view of the double-sealed micro gear pump of the present application;

[0017] Figure 3 Figure 1 is a left sectional view of the double-sealed micro gear pump of the present application;

[0018] Figure 4 Figure 3 is a perspective view of the double-sealed micro gear pump of the present application; Figure 3 Figure C is an enlarged view of the structure at C.

[0019] Legend:

[0020] Work tank; 2, limit groove; 3, pump body; 4, transport groove; 5, driving gear; 6, driven gear; 7, power shaft; 8, motor; 9, first sealing ring; 10, second sealing ring; 11, liquid inlet hole; 12, liquid inlet pipe; 13, liquid outlet hole; 14, liquid outlet pipe; 15, gas outlet hole; 16, muffler; 17, muffler hole; 18, inclined plate; 19, collection hole; 20, connecting pipe; 21, collection tank; 22, support plate; 23, support column. DETAILED DESCRIPTION

[0021] This part will describe the specific embodiments of the present application in detail, the preferred embodiments of the present application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the present application, but it cannot be understood as the limitation of the protection scope of the present application.

[0022] Refer to Figures 1-4The utility model discloses a double -sealed micro gear pump, it includes: working tank 1, double -sealed micro gear pump works in working tank 1, working tank 1 inside is provided with the air hole 15, the air hole 15 inside is provided with the silencer 16, the silencer 16 is working double -sealed micro gear pump and carries out the sound reduction, the silencer 16 inside is provided with the sound reduction hole 17, and the sound reduction hole 17 has the sound reduction effect in the inside of working tank 1, and the inside surface fixed connection of working tank 1 has the inclined plate 18, and the inclined plate 18 makes the liquid leakage can flow to the collection tank 21 inside smoothly, and working tank 1 inside is provided with the collection hole 19, and the collection hole 19 inside is provided with the connecting pipe 20, and the connecting pipe 20 connects working tank 1 and collection tank 21, and the lower surface detachable connection of connecting pipe 20 has collection tank 21, and collection tank 21 collects the liquid that double -sealed micro gear pump works leaks, pump body 3, pump body 3 inside is provided with the transport groove 4, and the liquid transports in the transport groove 4, and the transport groove 4 inside is provided with the driving gear 5, and the liquid follows the rotation of driving gear 5 and flows from the liquid inlet pipe 12 to the liquid outlet pipe 14, and the driving gear 5 is engaged with the driven gear 6, and the driving gear 5 drives the driven gear 6 to rotate, and the driven gear 6 rotation direction is contrary with driving gear 5 direction, and the liquid follows the rotation of driven gear 6 and flows from the liquid inlet pipe 12 to the liquid outlet pipe 14, and the lower surface fixed connection of pump body 3 has the power device, and the power device provides power, and the output fixed connection of power device has the power shaft 7, and the power device provides power for power shaft 7, and the one end away from power device of power shaft 7 is fixedly connected with driving gear 5, and power shaft 7 drives driving gear 5 to rotate.

[0023] The lower surface fixed connection of working tank 1 has the support plate 22, and the support plate 22 supports working tank 1, and the lower surface fixed connection of support plate 22 has the support column 23, and the support column 23 supports the whole working tank 1. The inside of support plate 22 is provided with collection hole 19, and connecting pipe 20 is in the inside of collection hole 19. The inside of pump body 3 is provided with liquid inlet hole 11, and the inside of liquid inlet hole 11 is provided with liquid inlet pipe 12, and the liquid enters transport groove 4 from liquid inlet pipe 12. The inside of pump body 3 is provided with liquid outlet hole 13, and the liquid outlet pipe 14 is in the inside of liquid outlet hole 13, and the liquid is discharged from liquid outlet pipe 14. The inside of liquid inlet hole 11, liquid outlet hole 13 is provided with first sealing ring 9, second sealing ring 10, and liquid inlet pipe 12, liquid outlet pipe 14 are in the inside of first sealing ring 9, second sealing ring 10, and first sealing ring 9, second sealing ring 10 have double -sealed effect to micro gear pump. The inside of working tank 1 is provided with limit groove 2, and limit groove 2 is movably connected with liquid inlet pipe 12, liquid outlet pipe 14, and limit groove 2 realizes that the whole pump body can be placed flexibly in the working tank. The power device is motor 8, and the motor 8 provides power, and the output of motor 8 is fixedly connected with power shaft 7, and the motor 8 provides power for power shaft 7.

[0024] Working principle: in use, the double sealing micro gear pump is placed in the working box 1, the motor 8 is started, the motor 8 provides power to the power shaft 7, the micro gear pump starts to work, the driving gear 5 starts to rotate by the power of the motor 8, the driven gear 6 also starts to rotate, but the rotation direction of the driven gear 6 is opposite to that of the driving gear 5, at this time, partial vacuum is generated in the liquid inlet hole 11 of the pump body 3. The liquid is sucked into the transport groove 4, but is blocked between the pump body 3 shell and the gear, so that the liquid flows from the liquid inlet pipe 12 to the liquid outlet pipe 14 with the rotation of the driving gear 5 and the driven gear 6. The noise generated during the operation of the micro gear pump can be silenced through the silencer 16 and the silencing hole 17. The leakage generated during the operation of the micro gear pump slides through the connecting pipe 20 to the collecting box 21 through the inclined plate 18, avoiding the waste of liquid.

[0025] The above embodiment of the utility model is described in detail in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by ordinary skilled persons in the technical field without departing from the purpose of the utility model.

Claims

1. A double-sealed micro gear pump, characterized in that, include: The work box (1) has an air vent (15) inside, a silencer (16) inside the air vent (15), a silencer hole (17) inside the silencer (16), an inclined plate (18) fixedly connected to the inner surface of the work box (1), a collection hole (19) inside the work box (1), a connecting pipe (20) inside the collection hole (19), and a collection box (21) detachably connected to the lower surface of the connecting pipe (20). Pump body (3), the pump body (3) is provided with a transport groove (4), the transport groove (4) is provided with a drive gear (5), the drive gear (5) is meshed with a driven gear (6), the pump body (3) is fixedly connected to a power device, the output end of the power device is fixedly connected to a power shaft (7), and the end of the power shaft (7) away from the power device is fixedly connected to the drive gear (5).

2. The dual-sealed micro gear pump according to claim 1, characterized in that, A support plate (22) is fixedly connected to the lower surface of the work box (1), and a support column (23) is fixedly connected to the lower surface of the support plate (22).

3. The dual-sealed micro gear pump according to claim 1, characterized in that, The support plate (22) is provided with a collection hole (19) inside, and the connecting pipe (20) is inside the collection hole (19).

4. The dual-sealed micro gear pump according to claim 1, characterized in that, The pump body (3) is provided with an inlet hole (11), and an inlet pipe (12) is provided inside the inlet hole (11).

5. The dual-sealed micro gear pump according to claim 1, characterized in that, The pump body (3) is provided with a liquid outlet hole (13) and a liquid outlet pipe (14) inside the liquid outlet hole (13).

6. The dual-sealed micro gear pump according to claim 1, characterized in that, The inlet hole (11) and outlet hole (13) are provided with a first sealing ring (9) and a second sealing ring (10), and the inlet pipe (12) and outlet pipe (14) are inside the first sealing ring (9) and the second sealing ring (10).

7. The dual-sealed micro gear pump according to claim 1, characterized in that, The working box (1) is provided with a limiting groove (2) inside, and the limiting groove (2) is movably connected to the liquid inlet pipe (12) and the liquid outlet pipe (14).

8. The dual-sealed micro gear pump according to claim 1, characterized in that, The power unit is a motor (8), and the output end of the motor (8) is fixedly connected to the power shaft (7).

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