Quick connector for air inlet pipe of vacuum pump

Abstract

The quick connector comprises a connecting base, a second connecting pipe is fixedly installed on the left side of the connecting base, a first connecting pipe is fixedly installed on the right side of the connecting base, and limiting rings are arranged on the outer sides of the first connecting pipe and the second connecting pipe in a sleeved mode. Threaded rings are fixedly installed on the sides, away from each other, of the first connecting pipe and the second connecting pipe correspondingly, fixing bases are fixedly installed at the front ends and the rear ends of the first connecting pipe and the second connecting pipe correspondingly, sliding plates are slidably connected into the two fixing bases correspondingly, and first springs are fixedly installed on the sides, away from each other, of the two sliding plates correspondingly. The sides, away from each other, of the two first springs are fixedly installed on the inner wall of the fixing base, and connecting rods are fixedly installed on the sides, away from the connecting base, of the multiple sliding plates. The quick connector for the air inlet pipe of the vacuum pump can meet the requirement for connection and use of various types of connectors, facilitates switching connection of different types of connectors, and meanwhile can filter entering gas to prevent dust and impurities from entering the vacuum pump to affect normal work.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump technology, specifically a quick connector for a vacuum pump inlet pipe. Background Technology

[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical, or physicochemical methods to evacuate a container and create a vacuum. Vacuum pumps are widely used in many fields, such as metallurgy, chemical industry, food industry, and electronic coating industry.

[0003] When using existing vacuum pumps, the vacuum pump's inlet pipe needs to be connected to the equipment that needs to be evacuated. Common connectors for vacuum pump inlet pipes and equipment are threaded joints, flange joints, or tubing joints connected by flexible hoses. When the connectors on the vacuum pump inlet pipe and the equipment connectors are of different types, the vacuum pump inlet pipe cannot be connected to the equipment, resulting in poor applicability of the vacuum pump.

[0004] To address this, we propose a quick-connect fitting for the vacuum pump inlet pipe. Utility Model Content

[0005] The purpose of this invention is to provide a quick connector for a vacuum pump inlet pipe to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick connector for a vacuum pump inlet pipe, comprising a connector base, a second connecting pipe fixedly installed on the left side of the connector base, a first connecting pipe fixedly installed on the right side of the connector base, limiting rings sleeved on the outer sides of both the first and second connecting pipes, threaded rings fixedly installed on the opposite sides of both the first and second connecting pipes, fixing seats fixedly installed at the front and rear ends of both the first and second connecting pipes, sliding plates slidably connected within both fixing seats, and first springs fixedly installed on the opposite sides of both sliding plates. The first springs are all fixedly installed on the inner wall of the fixed seat on the side away from each other. Connecting rods are fixedly installed on the side of the multiple sliding plates away from the connecting seat. Snap rings are fixedly installed on the side of the two connecting rods close to each other. Sleeves are fixedly installed on both sides of the connecting seat at the top and bottom ends of the first and second connecting pipes. Sliding pieces are slidably connected inside the multiple sleeves. Positioning rods are fixedly installed on the side of the multiple sliding pieces away from the connecting seat. Second springs are fixedly installed on the side of the multiple sliding pieces close to the connecting seat. The side of the multiple second springs away from the sliding pieces is fixedly installed on the connecting seat.

[0007] Optionally, multiple retaining rings are fixedly installed with multiple retaining teeth on one side of the threaded ring. By clamping the multiple retaining teeth onto the hose, the hose can be limited and fixed.

[0008] Optionally, both of the retaining rings are configured as C-type, which makes them easy to fit onto the pipeline.

[0009] Optionally, a filter screen is fixedly installed inside the connector corresponding to the first connecting pipe. The filter screen can filter dust and impurities, preventing dust and impurities from entering the vacuum pump.

[0010] Optionally, a threaded sleeve is fixedly installed at the bottom of the connecting seat, and a cleaning box is provided on the outer threaded sleeve. The cleaning box can be removed to facilitate the cleaning of filtered dust and impurities.

[0011] Optionally, the bottom of the connector is designed to be an inverted cone shape, which facilitates the filtering of impurities and dust into the cleaning box.

[0012] Optionally, a lever is fixedly installed on the side of each of the connecting rods away from the connecting seat, so that the connecting rod can be pulled easily by the lever.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By cooperating with the cleaning box, threaded ring, limit ring, retaining ring, connecting rod, slide plate, fixing seat, first spring, threaded sleeve, sleeve, filter screen, second spring, slide plate, positioning rod and retaining teeth, it can meet the connection of various types of connectors, facilitate the conversion connection between different types of connectors, and at the same time filter the incoming gas to prevent dust and impurities from entering the vacuum pump and affecting normal operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a quick connector for a vacuum pump inlet pipe according to the present invention;

[0016] Figure 2 This is a cross-sectional view of a quick connector for a vacuum pump inlet pipe according to the present invention.

[0017] Figure 3 This is a cross-sectional view of the sleeve in the quick connector for the vacuum pump inlet pipe of this utility model.

[0018] Figure 4 This utility model relates to a quick connector for a vacuum pump inlet pipe. Figure 3 A magnified view of A in the middle.

[0019] In the diagram: 1. Connecting seat; 2. Cleaning box; 3. Threaded ring; 4. First connecting pipe; 5. Second connecting pipe; 6. Limiting ring; 7. Snap ring; 8. Paddle plate; 9. Connecting rod; 10. Slide plate; 11. Fixed seat; 12. First spring; 13. Threaded sleeve; 14. Sleeve; 15. Filter screen; 16. Second spring; 17. Sliding plate; 18. Positioning rod; 19. Snap tooth. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 4 This utility model provides a quick connector for a vacuum pump inlet pipe, including a connector 1. A second connecting pipe 5 is fixedly installed on the left side of the connector 1, and a first connecting pipe 4 is fixedly installed on the right side of the connector 1. Limiting rings 6 are fitted on the outer sides of both the first connecting pipe 4 and the second connecting pipe 5. Threaded rings 3 are fixedly installed on the opposite sides of the first connecting pipe 4 and the second connecting pipe 5. Fixing seats 11 are fixedly installed at the front and rear ends of both the first connecting pipe 4 and the second connecting pipe 5. Sliding plates 10 are slidably connected inside each of the two fixing seats 11. First springs 12 are fixedly installed on the opposite sides of each of the two sliding plates 10. Each of the multiple sliding plates 10 is fixedly installed on the inner wall of the fixed base 11. Each of the multiple sliding plates 10 is fixedly installed with a connecting rod 9 on the side away from the connecting base 1. Each of the two connecting rods 9 is fixedly installed with a retaining ring 7 on the side close to each other. Each of the two sides of the connecting base 1 is fixedly installed with a sleeve 14 at the top and bottom of the first connecting pipe 4 and the second connecting pipe 5. Each of the multiple sleeves 14 is slidably connected with a sliding piece 17. Each of the multiple sliding pieces 17 is fixedly installed with a positioning rod 18 on the side away from the connecting base 1. Each of the multiple sliding pieces 17 is fixedly installed with a second spring 16 on the side close to the connecting base 1. Each of the multiple second springs 16 is fixedly installed on the connecting base 1 on the side away from the sliding piece 17.

[0022] Multiple retaining rings 7 are fixedly installed with multiple retaining teeth 19 on one side of the threaded ring 3. The multiple retaining teeth 19 are used to lock onto the hose, which can limit and fix the hose. Both retaining rings 7 are C-shaped, which makes it easy to fit on the pipeline. A filter screen 15 is fixedly installed in the connector 1 corresponding to the first connecting pipe 4. The filter screen 15 can filter dust and impurities and prevent dust and impurities from entering the vacuum pump. A threaded sleeve 13 is fixedly installed at the bottom of the connector 1. A cleaning box 2 is threaded on the outside of the threaded sleeve 13. The cleaning box 2 can be removed to clean the filtered dust and impurities. The bottom of the connector 1 is set as an inverted cone shape. This design makes it easy for the filtered impurities and dust to fall into the cleaning box 2. A lever 8 is fixedly installed on the side of the multiple connecting rods 9 away from the connector 1. The lever 8 makes it easy to pull the connecting rods 9.

[0023] Working principle: The threaded ring 3 has threads on both its inner and outer sides. During use, the threaded ring 3 connects both ends of this type of connector to the threaded joint. As the threaded joint approaches the connecting seat 1, the positioning rod 18 is pressed into the sleeve 14. When connecting via a hose, the two levers 8 can be used to pull the connecting rod 9 away from each other. Then, the hose is placed on the outside of the threaded ring 3. Releasing the levers 8 causes the first spring 12 to return the slide plate 10 to its original position, causing the two retaining rings 7 and multiple retaining teeth 19 to clamp and engage the outside of the hose, thus fixing the hose connector. When connecting to a flange, the above principle is used to first move the two retaining rings 7 away from each other, and then the two positioning rods 18 are inserted into the connecting flange. The connecting flange can be positioned in the pre-drilled mounting hole. Then, release the lever 8. At this time, the two retaining rings 7 slide towards each other, which can clamp the pipe on the side of the connecting flange away from the limiting ring 6. At the same time, the side of the two retaining rings 7 near the connecting seat 1 abuts against the connecting flange, which can fix the connecting flange. When the vacuum pump is working, the gas can filter dust and impurities through the filter screen 15 when passing through the connecting seat 1. The dust and impurities can be cleaned by disassembling the cleaning box 2. This type of quick connector for the vacuum pump inlet pipe is easy to use. The above components can meet the connection of various types of connectors, making it convenient to convert between different types of connectors. At the same time, it can filter the incoming gas to prevent dust and impurities from entering the vacuum pump and affecting normal operation.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick connector for a vacuum pump inlet pipe, characterized in that, The system includes a connecting seat (1), on which a second connecting pipe (5) is fixedly installed on the left side and a first connecting pipe (4) is fixedly installed on the right side. A limiting ring (6) is fitted around both the first connecting pipe (4) and the second connecting pipe (5). A threaded ring (3) is fixedly installed on the side of the first connecting pipe (4) and the second connecting pipe (5) that is away from each other. A fixing seat (11) is fixedly installed at both the front and rear ends of the first connecting pipe (4) and the second connecting pipe (5). A sliding plate (10) is slidably connected inside each of the two fixing seats (11). A first spring (12) is fixedly installed on the side of each of the two sliding plates (10) that is away from each other. The two first springs (12) are fixedly installed on the side of each of the two fixing seats (11). On the inner wall of 1), a connecting rod (9) is fixedly installed on the side of the multiple sliding plates (10) away from the connecting seat (1), and a retaining ring (7) is fixedly installed on the side of the two connecting rods (9) close to each other. A sleeve (14) is fixedly installed on both sides of the connecting seat (1) at the top and bottom of the first connecting pipe (4) and the second connecting pipe (5). A sliding piece (17) is slidably connected inside the multiple sleeves (14). A positioning rod (18) is fixedly installed on the side of the multiple sliding pieces (17) away from the connecting seat (1). A second spring (16) is fixedly installed on the side of the multiple sliding pieces (17) close to the connecting seat (1). The side of the multiple second springs (16) away from the sliding pieces (17) is fixedly installed on the connecting seat (1).

2. The quick connector for a vacuum pump inlet pipe according to claim 1, characterized in that, Each of the multiple retaining rings (7) has multiple retaining teeth (19) fixedly installed on one side of the threaded ring (3).

3. The quick connector for a vacuum pump inlet pipe according to claim 1, characterized in that, Both of the described retaining rings (7) are configured as type C.

4. A quick connector for a vacuum pump inlet pipe according to claim 1, characterized in that, A filter screen (15) is fixedly installed inside the connector (1) at the location corresponding to the first connecting pipe (4).

5. A quick connector for a vacuum pump inlet pipe according to claim 1, characterized in that, A threaded sleeve (13) is fixedly installed at the bottom of the connecting seat (1), and a cleaning box (2) is provided on the outer threaded sleeve of the threaded sleeve (13).

6. A quick connector for a vacuum pump inlet pipe according to claim 1, characterized in that, The bottom of the connecting seat (1) is set as an inverted cone shape.

7. A quick connector for a vacuum pump inlet pipe according to claim 1, characterized in that, Each of the multiple connecting rods (9) has a lever (8) fixedly installed on the side away from the connecting seat (1).

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