Leak-proof vacuum pump

Abstract

The utility model discloses a leakproof vacuum pump which comprises a water inlet pipe and further comprises an integrated casting main body, the integrated casting main body comprises a pump shell, a rotating shaft is eccentrically and rotatably arranged in the pump shell, a motor is arranged on one side of the rotating shaft in a butt joint mode, a sealing ring is arranged at the position, corresponding to the pump shell, of the motor, and blades are arranged on the periphery of the rotating shaft in an array mode. A motor cover is integrally cast on one side of the pump shell, a rear cover is installed on one side of the motor cover in a covering mode, and bolts are installed on the surface of the rear cover in a screwed mode. According to the utility model, the pump shell part and the motor mounting part of the pump body are manufactured in an integrated casting manner through the arranged integrated casting main body, so that the problem of leakage of water flow in the rotating process of the rotating shaft is directly avoided. And the rotating shaft part is a high-speed rotating part, so that the sealing structure at the rotating shaft part can directly avoid the leakage problem.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum pump technical field especially relates to a kind of anti-leakage vacuum pumps. BACKGROUND

[0002] Vacuum pump is a kind of mechanical equipment for extracting gas molecules from enclosed space, thereby reducing the gas pressure in the space. It has been widely used in many fields of scientific research, industrial production and daily life, such as semiconductor manufacturing, vacuum packaging, freeze-drying, vacuum coating, etc. According to the working principle and application requirements, vacuum pump can be divided into many types.

[0003] A water injection vacuum pump is disclosed in Chinese patent application No. CN202165241U, which comprises a forward vacuum pump, a motor and a reverse vacuum pump. The forward and reverse vacuum pumps are installed at both ends of the motor, and the motor rotor can drive both ends. The vacuum pump is made of reinforced polypropylene plastic by one-shot injection molding. The advantages of the utility model are high mechanical strength, strong corrosion resistance, smooth surface, simple structure, small size, long service life, large exhaust capacity and high vacuum degree.

[0004] In the prior art, the driving motor of the water extraction structure part of the vacuum pump is generally externally mounted on one side of the pump body. During the operation of the motor, the rotating shaft rotates continuously, which easily causes leakage. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides an anti-leakage vacuum pump.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] An anti-leakage vacuum pump comprises a water inlet pipe and further comprises:

[0008] An integrated cast main body comprises a pump shell, a rotating shaft is eccentrically arranged inside the pump shell, a motor is butt-jointed on one side of the rotating shaft, a sealing ring is arranged at the corresponding position of the motor and the pump shell, blades are arrayed around the rotating shaft, a motor cover is integrally cast on one side of the pump shell, a rear cover is cover-mounted on one side of the motor cover, and bolts are screw-mounted on the surface of the rear cover.

[0009] In a further technical scheme, an end face is arranged on one side of the pump shell, a water outlet hole is arranged on one side of the end face, a second butt joint pipe is butt-jointed on one side of the water outlet hole, a water outlet pipe is butt-jointed on one side of the second butt joint pipe, and a second screw cover is screw-mounted on the surface of the second butt joint pipe and the water outlet pipe.

[0010] Further technical solutions, the side of the water inlet pipe is provided with a first screw cover, the side of the first screw cover is provided with a first screw pipe, and the first screw pipe is arranged on the side of the pump shell in butt joint.

[0011] Further technical solutions, the side of the pump shell is provided with a flange, and the periphery of the flange is provided with screws.

[0012] Further technical solutions, the screws are arranged on the surface of the flange.

[0013] Further technical solutions, the motor is provided with a sealing ring at the butt joint part of the pump shell.

[0014] Further technical solutions, the end face, the pump shell and the motor cover are manufactured in an integrated casting mode, the shaft is provided with a bearing at the butt joint part of the pump shell, and the pump shell is internally provided with a water tank.

[0015] Compared with the prior art, the anti-leakage vacuum pump has the following beneficial effects:

[0016] By arranging the integrated casting main body, the pump shell part and the motor mounting part of the pump body are prepared in an integrated casting mode, so that the leakage problem of water flow in the rotating process of the shaft is directly avoided. The shaft part is a high-speed rotating part, and therefore the sealing structure at the part can directly avoid the occurrence of the leakage problem. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure schematic view of the anti-leakage vacuum pump is provided.

[0018] Figure 2 A structure schematic view of the anti-leakage vacuum pump is provided.

[0019] Figure 3 A structure schematic view of the anti-leakage vacuum pump is provided.

[0020] Figure 4 A structure schematic view of the anti-leakage vacuum pump is provided.

[0021] In the drawing: 1, water inlet pipe; 2, integrated casting main body; 3, first screw cover; 4, butt joint pipe; 5, end face; 6, water outlet hole; 7, second butt joint pipe; 8, water outlet pipe; 9, second screw cover; 10, blade; 11, motor cover; 12, rear cover; 13, bolt; 14, motor; 15, screw; 16, water tank; 17, sealing ring; 18, shaft; 19, flange. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Embodiment one: refer to Figure 1 - Figure 4 A kind of anti-leakage vacuum pump, including inlet pipe 1, further comprising:

[0024] Integrated casting main body 2, integrated casting main body 2 includes pump shell 4, eccentric rotation is provided with shaft 18 in the inside of pump shell 4, the blade 10 of the surface of shaft 18 is the main transmission structure of pump body;Motor 14 is arranged on the side of shaft 18, and the motor 14 controls the rotation of blade 10 by shaft 18, and then realizes the stirring effect of water flow.Electric motor 14 and the part corresponding to pump shell 4 are provided with sealing ring 17, and the part of sealing ring 17 is sealed on the surface of shaft 18, for realizing the effect of waterproofing.The periphery of shaft 18 is provided with blade 10, and motor cover 11 is integrally cast on the side of pump shell 4, and the motor cover 11 is used to avoid the problem of leakage in the motor shaft part.The side of motor cover 11 is covered and installed with back cover 12, and the effect of sealing locking is realized by bolt 13.The surface of back cover 12 is screwed with bolt 13.

[0025] A kind of anti-leakage vacuum pump, the side of pump shell 4 is provided with end surface 5, the side of end surface 5 is provided with water outlet hole 6, and water outlet hole 6 is the part of water output;Second butt joint pipe 7 is arranged on the side of water outlet hole 6, and water outlet pipe 8 is arranged on the side of second butt joint pipe 7, and second butt joint pipe 7 and water outlet pipe 8 are used to output moisture.The surface of second butt joint pipe 7 and water outlet pipe 8 is screwed with second screw cover 9.

[0026] A kind of anti-leakage vacuum pump, the side of inlet pipe 1 is provided with first screw cover 3, the side of first screw cover 3 is butt jointed and installed with first screw pipe, and the side of pump shell 4 is butt jointed and installed with first screw pipe, for realizing the input effect of moisture

[0027] A kind of anti-leakage vacuum pump, the side of pump shell 4 is provided with flange 19, the periphery of flange 19 is provided with screw 15, and the effect of screw 15 is realized by flange 19 to fix water pump.

[0028] A kind of anti-leakage vacuum pump, screw 15 is arrayed on the surface of flange 19, for realizing the effect of stable screwing.

[0029] A kind of anti-leakage vacuum pump, the part of motor 14 is arranged with sealing ring 17 in the butt joint of pump shell 4, and the effect of sealing ring 17 is auxiliary realization of the sealing effect of shaft 18, to avoid the problem of leakage.

[0030] A kind of leak-proof vacuum pump, end face 5, pump shell 4 and motor cover 11 adopt integrated casting mode manufacturing, directly avoid the emergence of leakage position.Translational axis 18 and the position of pump shell 4 butt joint is provided with bearing, bearing guarantees the rotating effect of translational axis 18.The inside of pump shell 4 is provided with water tank 16, water tank 16 is the position of water flow.

[0031] In the process of actual design, in order to avoid the following defects existing in the prior art: "in the prior art, the driving motor of the water pumping structure part of vacuum pump is generally externally arranged on one side of pump body, and during the operation of motor, the shaft is continuously rotated, which easily causes leakage problem."And pertinence is proposed integrated casting main body 2;

[0032] Integrated casting main body 2:

[0033] As the main structure of the water pump, pump shell 4, end face 5 and motor cover 11 are made by integrated casting, so that the shaft 18 part of the motor 14 is avoided to be directly exposed in the leakage position, thereby directly avoiding the water flow from the shaft 18 part leakage.The motor 14 controls the eccentric rotation of the blade 10 in the inside of the pump shell 4 through the shaft 18, thereby realizing the throwing effect of water flow.The water in the water pump enters the water pump from the water inlet pipe 1 part and outputs from the water outlet pipe 8 part, thereby completing the effect of the water pump.The screw 15 on the bottom flange 19 is the tightening effect of the water pump.

[0034] A vacuum pump is a mechanical device used to extract gas molecules from an enclosed space, thereby reducing the gas pressure within that space. It has been widely used in many fields of scientific research, industrial production and daily life, such as semiconductor manufacturing, vacuum packaging, freeze-drying, vacuum coating, etc. According to the working principle and application requirements, vacuum pumps can be divided into many types. The utility model discloses an integrated casting main body, which is prepared by integrated casting of the pump shell part and the motor mounting part of the pump body, directly avoiding the leakage problem of water flow during the rotation of the shaft. The shaft part is a high-speed rotating part, so the sealing structure here can directly avoid the leakage problem. The output shaft 18 part of the motor 14 rotates at high speed during operation, so it is most likely to leak. Therefore, the rotating part of the shaft 18 needs to be sealed to avoid the leakage problem of the shaft 18 part. In addition, the first screw cover and the second screw cover 9 realize the tightening effect of the inlet and outlet pipes, realizing the entry and output of water respectively.

[0035] It is to be noted that, in the present text, the relative terms such as first and second, and the like are used only to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. The above description is only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and the inventive concept of the present application, can make equivalent replacements or changes within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A leak-tight vacuum pump comprising a water inlet pipe (1), characterized in that, Also include: The integrated casting body (2) includes a pump shell (4), the inside of the pump shell (4) is eccentrically arranged with a rotating shaft (18), one side of the rotating shaft (18) is arranged with a motor (14), the corresponding part of the motor (14) and the pump shell (4) is provided with a sealing ring (17), the periphery of the rotating shaft (18) is arranged with a blade (10), one side of the pump shell (4) is integrally cast with a motor cover (11), one side of the motor cover (11) is covered and installed with a rear cover (12), the surface of the rear cover (12) is screw-mounted with a bolt (13).

2. A leak-tight vacuum pump according to claim 1, characterized in that One side of the pump shell (4) is provided with an end face (5), one side of the end face (5) is provided with a water outlet hole (6), one side of the water outlet hole (6) is arranged with a second butt joint pipe (7), one side of the second butt joint pipe (7) is arranged with a water outlet pipe (8), the surface of the second butt joint pipe (7) and the water outlet pipe (8) is screw-mounted with a second screw cover (9).

3. A leak-tight vacuum pump according to claim 1, characterized in that One side of the water inlet pipe (1) is provided with a first screw cover (3), one side of the first screw cover (3) is butt jointed with a first screw pipe, the first screw pipe is arranged on one side of the pump shell (4).

4. A leak-tight vacuum pump according to claim 1, characterized in that One side of the pump shell (4) is provided with a flange (19), the periphery of the flange (19) is provided with a screw (15).

5. A leak-tight vacuum pump according to claim 4, characterized in that The screw (15) is arranged on the surface of the flange (19).

6. A leak-tight vacuum pump according to claim 1, characterized in that The motor (14) is arranged with a sealing ring (17) at the butt joint part of the pump shell (4).

7. A leak-tight vacuum pump according to claim 2, characterized in that The end face (5), the pump shell (4) and the motor cover (11) are manufactured by integrated casting, the rotating shaft (18) is arranged with a bearing at the butt joint part of the pump shell (4), the inside of the pump shell (4) is provided with a water tank (16).

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