Plastic vacuum pump

Abstract

The utility model belongs to the technical field of vacuum pumps, and particularly relates to a plastic vacuum pump. Comprising a vacuum pump shell, a supporting ring is fixedly arranged on the lower end face of the vacuum pump shell, a connecting ring is arranged on the supporting ring, a plurality of sliding connecting grooves are formed in the connecting ring in sequence, and a plurality of sliding connecting rods are fixedly arranged on the supporting ring in sequence; the multiple sliding connecting rods are arranged in the multiple sliding connecting grooves in the connecting ring in a sliding mode correspondingly. A plurality of connecting plates are rotationally arranged on the connecting ring, and clamping blocks are rotationally arranged at the ends, away from the connecting ring, of the connecting plates. Through the arrangement of the supporting ring, the connecting ring, the sliding connecting groove, the sliding connecting rod, the connecting plate, the clamping block, the tooth groove, the gear, the output shaft and the servo motor, the vacuum pump shell can be fixedly clamped on the kettle body, so that the vacuum pump shell and the kettle body can be fixedly connected together, and the vacuum pump shell clamping device can be suitable for kettle body calibers with different diameters; therefore, the kettle body application range of the device can be widened.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, and particularly relates to a plastic vacuum pump. Background Technique

[0002] A plastic vacuum pump is a vacuum pump made of plastic materials, mainly used for extracting gases or gas mixtures to create a low-pressure environment. The advantages of this pump are its light weight, strong corrosion resistance, and low cost, making it suitable for some applications with high requirements for weight and materials. Plastic vacuum pumps are usually used in: Laboratories: 1. Creating a vacuum environment in chemical reactions or analyses; 2. Packaging: Used for vacuum extraction in food and commodity packaging to extend the shelf life; 3. Industrial applications: In some production processes that require vacuum treatment.

[0003] For example, for a plastic spring vacuum pump with the application number 202322675283.7, when in use, the vacuum tube at the bottom end of the kettle lid and the straw below are put into the kettle body filled with liquid, and then fixed by rotating the kettle lid.

[0004] It has the following disadvantages:

[0005] The diameter of the kettle lid is fixed. If the diameter of the kettle mouth of the kettle body does not match the diameter of the kettle lid, then it is necessary to replace the kettle lid that matches the diameter of the kettle mouth of the kettle body. Replacing the kettle lid requires replacing the entire plastic vacuum pump, which reduces the range of kettle bodies that the device can be applied to.

[0006] Therefore, we propose a plastic vacuum pump to solve the above problems. Content of the Utility Model

[0007] (1) Technical Problems to be Solved

[0008] Aiming at the deficiencies of the prior art, the utility model provides a plastic vacuum pump, which solves the problems put forward in the above background technique.

[0009] (2) Technical Solutions

[0010] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0011] A plastic vacuum pump includes a vacuum pump housing. A support ring is fixedly arranged on the lower end surface of the vacuum pump housing. A connecting ring is arranged on the support ring. A plurality of sliding connection grooves are sequentially formed on the connecting ring. A plurality of sliding connecting rods are sequentially and fixedly arranged on the support ring. The plurality of sliding connecting rods are respectively slidably arranged in the plurality of sliding connection grooves on the connecting ring;

[0012] A plurality of connecting plates are rotatably arranged on the connecting ring, and a clamping block is rotatably arranged at one end of the connecting plate away from the connecting ring. A plurality of the clamping blocks are all rotatably connected to the support ring;

[0013] A tooth groove is formed on the outer wall surface of the connecting ring. A gear is arranged on one side of the connecting ring. The gear is engaged with the tooth groove. An output shaft is fixedly arranged on the gear. A servo motor is arranged at one end of the output shaft away from the gear. The servo motor is fixedly arranged in the vacuum pump housing.

[0014] Furthermore, an air inlet pipe is fixedly arranged on the lower end surface of the vacuum pump housing. The air inlet pipe is located inside the support ring. An air extraction pipe is sleeved on the air inlet pipe. A vacuum pump body is fixedly arranged in the vacuum pump housing.

[0015] Furthermore, an air outlet pipe is fixedly arranged on the outer wall surface of the vacuum pump housing. The vacuum pump body is respectively connected to the air inlet pipe and the air outlet pipe.

[0016] Furthermore, a limiting groove is formed on the outer wall surface of the air inlet pipe. An open elastic clamping ring is sleeved on the air extraction pipe. The position of the open elastic clamping ring corresponds to that of the limiting groove.

[0017] Furthermore, a limiting groove is formed on one side wall surface of the vacuum pump housing. A notch is formed at the upper end inside the limiting groove. A connecting base is rotatably arranged in the notch.

[0018] Furthermore, a hand-held handle is fixedly arranged on the connecting base. The hand-held handle is adapted to the size of the limiting groove.

[0019] Furthermore, a display control screen is fixedly arranged on one side of the upper end surface of the vacuum pump housing. A plurality of control buttons are fixedly arranged in sequence on one side of the display control screen.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, the present utility model provides a plastic vacuum pump, which has the following beneficial effects:

[0022] In the present utility model, through the settings of the support ring, connecting ring, sliding connection groove, sliding connecting rod, connecting plate, clamping block, tooth groove, gear, output shaft, and servo motor, the vacuum pump housing can be fixedly clamped on the kettle body. In this way, not only can the vacuum pump housing be fixedly connected to the kettle body, but also the kettle body with different diameters can be adapted, thereby improving the range of kettle bodies applicable to the device. Description of the Drawings

[0023] Figure 1 It is a first perspective view of the overall structure of the present utility model;

[0024] Figure 2This is the second perspective of the overall structure schematic diagram of the present utility model;

[0025] Figure 3 This is the three-dimensional connection diagram of the support ring and the connection ring of the present utility model;

[0026] Figure 4 This is the disassembled diagram of the air extraction pipe and the air inlet pipe of the present utility model;

[0027] Figure 5 This is the cross-sectional view of the vacuum pump housing of the present utility model.

[0028] In the figure: 1. Vacuum pump housing; 2. Support ring; 3. Connection ring; 4. Sliding connection groove; 5. Sliding connecting rod; 6. Connecting plate; 7. Clamping block; 8. Tooth groove; 9. Gear; 10. Output shaft; 11. Servo motor; 12. Air inlet pipe; 13. Air extraction pipe; 14. Vacuum pump body; 15. Air outlet pipe; 16. Limit groove; 17. Open elastic clamping ring; 18. Limit slot; 19. Connection base; 20. Hand-held handle; 21. Display control screen; 22. Control button. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0030] Embodiment

[0031] As Figures 1-5 shown, a plastic vacuum pump proposed in an embodiment of the present utility model includes a vacuum pump housing 1. A support ring 2 is fixedly provided on the lower end surface of the vacuum pump housing 1. A connection ring 3 is arranged on the support ring 2. A plurality of sliding connection grooves 4 are sequentially formed on the connection ring 3. A plurality of sliding connecting rods 5 are sequentially fixedly provided on the support ring 2. The plurality of sliding connecting rods 5 are respectively slidably arranged in the plurality of sliding connection grooves 4 on the connection ring 3;

[0032] A plurality of connecting plates 6 are rotatably arranged on the connection ring 3. A clamping block 7 is rotatably arranged at one end of the connecting plate 6 away from the connection ring 3. The plurality of clamping blocks 7 are all rotatably connected to the support ring 2;

[0033] A tooth groove 8 is formed on the outer wall surface of the connection ring 3. A gear 9 is arranged on one side of the connection ring 3. The gear 9 is engaged with the tooth groove 8. An output shaft 10 is fixedly provided on the gear 9. A servo motor 11 is arranged at one end of the output shaft 10 away from the gear 9. The servo motor 11 is fixedly provided in the vacuum pump housing 1.

[0034] Through the settings of the support ring 2, connecting ring 3, sliding connection groove 4, sliding connecting rod 5, connecting plate 6, clamping block 7, tooth groove 8, gear 9, output shaft 10, and servo motor 11, the vacuum pump housing 1 can be fixedly clamped on the kettle body. In this way, not only can the vacuum pump housing 1 be fixedly connected to the kettle body, but also the kettle body diameters of different sizes can be accommodated, thereby improving the range of kettles applicable to the device.

[0035] A gas inlet pipe 12 is fixedly provided on the lower end face of the vacuum pump housing 1. The gas inlet pipe 12 is located inside the support ring 2. A suction pipe 13 is sleeved on the gas inlet pipe 12. A vacuum pump body 14 is fixedly provided inside the vacuum pump housing 1. An air outlet pipe 15 is fixedly arranged on the outer wall surface of the vacuum pump housing 1. The vacuum pump body 14 is respectively connected to the gas inlet pipe 12 and the air outlet pipe 15.

[0036] The settings of the gas inlet pipe 12, suction pipe 13, vacuum pump body 14, and air outlet pipe 15 replace the need for manual operation in the use of traditional plastic vacuum pumps.

[0037] A limit groove 16 is opened on the outer wall surface of the gas inlet pipe 12. An open elastic clamping ring 17 is sleeved on the suction pipe 13. The position of the open elastic clamping ring 17 corresponds to that of the limit groove 16.

[0038] Through the settings of the open elastic clamping ring 17 and the limit groove 16, not only can the sealing performance between the gas inlet pipe 12 and the suction pipe 13 be improved, but also the firmness of the connection between the gas inlet pipe 12 and the suction pipe 13 can be enhanced.

[0039] A limit slot 18 is opened on one side wall surface of the vacuum pump housing 1. A notch is opened at the upper end inside the limit slot 18. A connection base 19 is rotatably arranged in the notch. A hand-held handle 20 is fixedly provided on the connection base 19. The hand-held handle 20 is adapted to the size of the limit slot 18.

[0040] Through the setting of the limit slot 18, it is convenient to retract and extend the hand-held handle 20, and the setting of the hand-held handle 20 makes the vacuum pump housing 1 convenient to hold.

[0041] A display control screen 21 is fixedly provided on one side of the upper end face of the vacuum pump housing 1. A plurality of control keys 22 are fixedly arranged in sequence on one side of the display control screen 21. Through the setting of the display control screen 21, the data during the operation of the device can be displayed, and the setting of the control keys 22 facilitates the operation of the device.

[0042] The working principle of this utility model:

[0043] First, insert one end of the air extraction pipe 13 into the kettle body, and make the kettle mouth of the kettle body pass through the connecting ring 3 and the support ring 2 in sequence and abut against the lower end face of the vacuum pump housing 1. Then, start the servo motor 11. The start of the servo motor 11 drives the output shaft 10 to rotate. The output shaft 10 drives the gear 9 to rotate. The gear 9 drives the connecting ring 3 to rotate through the tooth groove 8. The connecting ring 3 drives the clamping block 7 to rotate through the connecting plate 6. When one end of the clamping block 7 abuts against the outer wall surface of the kettle mouth of the kettle body, continue to rotate the connecting ring 3 until the clamping block 7 clamps the kettle mouth of the kettle body. Then, start the vacuum pump body 14. The vacuum pump body 14 extracts the extract in the kettle body out of the kettle body through the air extraction pipe 13 and the hand-held handle 20 in sequence.

[0044] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. 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 plastic vacuum pump, comprising a vacuum pump housing (1), characterized in that: A support ring (2) is fixedly provided on the lower end face of the vacuum pump housing (1). A connecting ring (3) is arranged on the support ring (2). A plurality of sliding connection grooves (4) are sequentially formed on the connecting ring (3). A plurality of sliding connecting rods (5) are sequentially and fixedly arranged on the support ring (2). The plurality of sliding connecting rods (5) are respectively slidably arranged in the plurality of sliding connection grooves (4) on the connecting ring (3). A plurality of connecting plates (6) are rotatably arranged on the connecting ring (3). A clamping block (7) is rotatably arranged at one end of the connecting plate (6) away from the connecting ring (3). The plurality of clamping blocks (7) are all rotatably connected to the support ring (2). A tooth groove (8) is formed on the outer wall surface of the connecting ring (3). A gear (9) is arranged on one side of the connecting ring (3). The gear (9) is engaged with the tooth groove (8). An output shaft (10) is fixedly arranged on the gear (9). A servo motor (11) is arranged at one end of the output shaft (10) away from the gear (9). The servo motor (11) is fixedly arranged in the vacuum pump housing (1).

2. The plastic vacuum pump according to claim 1, characterized in that: An intake pipe (12) is fixedly provided on the lower end face of the vacuum pump housing (1). The intake pipe (12) is located inside the support ring (2). An extraction pipe (13) is sleeved on the intake pipe (12). A vacuum pump body (14) is fixedly arranged in the vacuum pump housing (1).

3. The plastic vacuum pump according to claim 2, wherein: An exhaust pipe (15) is fixedly arranged on the outer wall surface of the vacuum pump housing (1). The vacuum pump body (14) is respectively connected to the intake pipe (12) and the exhaust pipe (15).

4. A plastic vacuum pump according to claim 3, characterized in that: A limit groove (16) is formed on the outer wall surface of the intake pipe (12). An open elastic clamping ring (17) is sleeved on the extraction pipe (13). The position of the open elastic clamping ring (17) corresponds to that of the limit groove (16).

5. A plastic vacuum pump according to claim 1, characterized in that: A limit groove (18) is formed on one side wall surface of the vacuum pump housing (1). A notch is formed at the upper end inside the limit groove (18). A connecting base (19) is rotatably arranged in the notch.

6. The plastic vacuum pump according to claim 5, characterized in that: A hand-held handle (20) is fixedly arranged on the connecting base (19). The hand-held handle (20) is adapted to the size of the limit groove (18).

7. A plastic vacuum pump according to claim 1, characterized in that: A display control screen (21) is fixedly arranged on one side of the upper end face of the vacuum pump housing (1). A plurality of control keys (22) are sequentially and fixedly arranged on one side of the display control screen (21).

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