External vacuum pump filtering quick-release assembly
By using an externally designed and threadedly connected quick-release vacuum pump filter assembly, the problem of slow disassembly and assembly speed of vacuum pump filter assemblies is solved, enabling rapid disassembly and assembly, improving disassembly and assembly efficiency, and extending the service life of the vacuum pump.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA BAICHUAN TONG CLEAN ENERGY CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-05-19
AI Technical Summary
The existing vacuum pump filter assembly is installed inside the vacuum pump, which is slow to install and remove and is limited by space, affecting the efficiency of installation and removal.
Design an external vacuum pump filter quick-release assembly, which connects the cyclone separator, inlet pipe, outlet pipe and tee pipe through threaded connection. The external structure enables quick disassembly and assembly.
It avoids space constraints during disassembly and assembly, improves disassembly and assembly efficiency, simplifies the replacement and cleaning process of filter components, and extends the service life of vacuum pumps.
Smart Images

Figure CN224260488U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum pump technology, specifically an external vacuum pump filter quick-release assembly. Background Technology
[0002] A vacuum pump is a device or equipment that uses mechanical, physical, chemical, or physicochemical methods to evacuate a container to obtain a vacuum. In layman's terms, a vacuum pump is a device that uses various methods to improve, generate, and maintain a vacuum in a closed space.
[0003] A circulating filtration device and vacuum pump for a vacuum pump are disclosed in CN209469553U. The device includes an oil inlet pipe, an oil outlet pipe, and a filtration mechanism. The filtration mechanism includes a housing with a mesh separating the housing into a filtration chamber and an oil storage chamber. The oil inlet pipe is connected to one end of the housing and communicates with the filtration chamber, while the oil outlet pipe is connected to the other end of the housing and communicates with the oil storage chamber. The filtration chamber contains a filter assembly capable of filtering impurities from the vacuum pump oil. The vacuum pump oil containing impurities in the auxiliary oil chamber of the vacuum pump body is introduced into the filtration mechanism through the oil inlet pipe for impurity filtration. The filtered vacuum pump oil is then stored in the oil storage chamber. Subsequently, the vacuum pump oil in the oil storage chamber is introduced into the main oil chamber of the vacuum pump body through the oil outlet pipe. This allows the vacuum pump to operate for extended periods without changing the vacuum pump oil, effectively extending the service life of the vacuum pump oil, reducing the maintenance frequency of the vacuum pump, and lowering industrial production costs. This invention applies to the field of vacuum pump equipment.
[0004] In the current vacuum pump filter assembly setup, the filter assembly is installed inside the vacuum pump. The filter assembly works with the vacuum pump to filter the medium. However, since the filter assembly is installed inside the vacuum pump, when it needs to be disassembled, replaced, or cleaned, part of the vacuum pump's outer casing must be removed to expose the filter assembly inside the vacuum pump. Because the filter assembly has a relatively complex structure and is connected to both inlet and outlet pipes with many lines, the space is limited when disassembling and assembling inside the vacuum pump, which affects the disassembly and assembly speed.
[0005] Therefore, those skilled in the art have provided an external vacuum pump filter quick-release assembly to solve the problems mentioned in the background art. Utility Model Content
[0006] The purpose of this invention is to provide an external vacuum pump filter quick-release assembly to solve the problem of slow disassembly and assembly speed of existing vacuum pump filter assemblies mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] An external vacuum pump filter quick-release assembly includes: a vacuum pump body; a cyclone separator is installed on the outside of the vacuum pump body; both the inlet and outlet ends of the cyclone separator are integrally connected to an extension tube; an inlet pipe is connected to the end of the extension tube away from the cyclone separator; a tee pipe is installed at the end of the inlet pipe away from the extension tube; an input pipe is installed at one end of the tee pipe; a gas flow meter is installed at the right end of the tee pipe; an outlet pipe is connected to the extension tube at the outlet end of the cyclone separator; a filter box is installed at the end of the outlet pipe away from the extension tube; and a ventilation pipe is connected to the output port of the filter box.
[0009] As a further embodiment of this utility model: the input pipe and the tee pipe are connected by a thread, and the tee pipe and the inlet pipe are connected by a thread, and the input pipe is connected to the inlet pipe through the tee pipe.
[0010] As a further embodiment of this utility model: the inlet pipe and the extension pipe are connected by a thread, and a filter cage is installed at one end of the inlet pipe that is embedded inside the extension pipe, and a filter cage is installed at one end of the outlet pipe that is embedded inside the extension pipe.
[0011] As a further embodiment of this utility model: the inlet pipe and the outlet pipe are respectively connected to the cyclone separator, and the cyclone separator is connected to the filter box through the outlet pipe.
[0012] As a further improvement of this utility model: a filter is fitted inside the filter box, and a filter funnel is fitted in the middle of the filter.
[0013] As a further improvement of this invention, the filter box is connected to the vacuum pump via a ventilation pipe.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] The cyclone separator is interconnected with the input pipe via an inlet pipe and a tee pipe. Gas enters the inlet pipe and cyclone separator from the inlet pipe, where it is separated. After passing through the cyclone separator, the air is discharged into the outlet pipe and then into the filter box. After being filtered by the filter box, the air is then fed into the vacuum pump via a ventilation pipe. All these structures are installed externally on the vacuum pump, providing sufficient space for disassembly and assembly, avoiding inefficient disassembly and assembly due to space constraints. Furthermore, the parallel arrangement of the inlet and outlet pipes reduces the space occupied by the piping when the filter assembly is external. In this process, the inlet pipe is connected to the input pipe via a tee pipe, and both the inlet and input pipes are connected to the tee pipe via threaded connections. The threaded connections facilitate the disassembly and assembly of the inlet and input pipes. The cyclone separator is connected to the inlet and outlet pipes via an extended integrated pipe, forming a threaded connection, which facilitates the disassembly of the inlet and outlet pipes and enables quick disassembly of the filter assembly and its piping. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of an external vacuum pump filter quick-release assembly.
[0017] Figure 2 This is a schematic diagram of the connection structure between the inlet pipe and the outlet pipe in an external vacuum pump filter quick-release assembly.
[0018] Figure 3 This is a schematic diagram of the filter cage in an external vacuum pump filter quick-release assembly.
[0019] Figure 4 This is a schematic diagram of the internal structure of the ventilation duct in an external vacuum pump filter quick-release assembly.
[0020] In the diagram: 1. Vacuum pump body; 2. Cyclone separator; 3. Inlet pipe; 4. T-connector; 5. Input pipe; 6. Flow meter; 7. Outlet pipe; 8. Filter box; 9. Ventilation pipe; 10. Filter cage one; 11. Filter cage two; 12. Filter; 13. Filter hopper; 14. Extension integrated pipe. Detailed Implementation
[0021] 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.
[0022] Please see Figures 1-4This utility model provides an external vacuum pump filter quick-release assembly, including: a vacuum pump body 1, a cyclone separator 2 installed on the outside of the vacuum pump body 1, and an extension tube 14 integrally connected to both the inlet and outlet ends of the cyclone separator. An inlet pipe 3 is connected to the end of the extension tube 14 furthest from the cyclone separator 2. A three-way pipe 4 is installed at the end of the inlet pipe 3 furthest from the extension tube 14, and an input pipe 5 is installed at one end of the three-way pipe 4. A gas flow meter 6 is installed at the right end of the three-way pipe 4. Pipe 5 and tee pipe 4 are connected by threads, and tee pipe 4 and inlet pipe 3 are connected by threads. Inlet pipe 5 is connected to inlet pipe 3 through tee pipe 4. Inlet pipe 3 is connected to extension pipe 14 by threads. Filter cage 10 is installed at one end of inlet pipe 3 that is embedded in extension pipe. Filter cage 21 is installed at one end of outlet pipe 7 that is embedded in extension pipe. Inlet pipe 3 and outlet pipe 7 are connected to cyclone separator 2, and cyclone separator 2 is connected to filter box 8 through outlet pipe 7.
[0023] Specifically, the inlet pipe 5 and the outlet pipe 3 are connected by a three-way pipe 4, extending the integrated pipe and further extending the inlet and outlet ends of the cyclone separator 2. This facilitates the quick installation of the inlet pipe 3 and the outlet. The inlet pipe 3 and the inlet pipe 5 are connected to two ends of the three-way pipe 4 by threaded connections, with the other end connected to the flow meter 6. The threaded connections facilitate the disassembly and assembly of the inlet pipe 3 and the inlet pipe 5. The cyclone separator 2 is connected to the inlet pipe 3 and the outlet pipe 7 by a threaded extension integrated pipe 14. The extension integrated pipe 14 extends the inlet and outlet ends of the cyclone separator 2, thus connecting them to the inlet pipe 3 and the outlet pipe 7, and also facilitates the disassembly of the inlet pipe 3 and the outlet pipe 7, thereby enabling the filtering components and... The pipeline allows for quick disassembly and assembly. Gas enters the inlet pipe 3 and cyclone separator 2 from the inlet pipe 5. The cyclone separator 2 separates the gas, and the air is discharged into the outlet pipe 7 after passing through the cyclone separator 2. Then, it enters the filter box 8 through the outlet pipe 7. In the filter box 8, the air is filtered to remove impurities and particles. The air filtered by the filter box 8 is then input into the vacuum pump through the ventilation pipe 9, thus completing the entire gas treatment and purification process. During disassembly, the inlet pipe 3, inlet pipe 5, and outlet pipe 7 are disassembled one by one using the threaded connection structure. When disassembling the inlet pipe 3 and outlet pipe 7, the filter cage 10 and filter cage 2 11 will be pulled out from the inside of the extension integrated pipe 14, and then the filter cages can be cleaned.
[0024] The extended integrated pipe 14 at the outlet end of the cyclone separator 2 is connected to the outlet pipe 7. A filter box 8 is installed at the end of the outlet pipe 7 away from the extended integrated pipe 14. The outlet of the filter box 8 is connected to the ventilation pipe 9. A filter 12 is installed inside the filter box 8, and a filter funnel 13 is installed in the middle of the filter 12. The filter box 8 is connected to the vacuum pump through the ventilation pipe 9.
[0025] Specifically, the gas separated by the cyclone separator 2 is introduced into the outlet pipe 7, and then into the filter box 8. The filter funnel 13 and filter 12 inside the filter box 8 purify and filter the gas. The purified and filtered gas enters the vacuum pump through the ventilation pipe 9. The filter box 8 and the outlet pipe 7 are connected by a flange seal. After removing the sealing flange, the filter box 8 can be disassembled and reassembled, which facilitates the cleaning and replacement of the filter 12 and filter funnel 13 inside the filter box 8. The filter box 8 further purifies the gas, reduces the amount of impurities carried into the pipeline inside the vacuum pump, and extends the service life of the vacuum pump.
[0026] The working principle of this utility model is as follows:
[0027] When using this utility model, gas enters the three-way pipe 4 through the input pipe 5. The three-way pipe 4 guides the gas to the inlet pipe 3. The inlet pipe 3 and the extension integrated pipe 14 are connected by a threaded structure to ensure that the gas does not leak. Inside the inlet pipe 3, the filter cage 10 can initially block larger impurities and protect the subsequent cyclone separator 2. The gas then enters the cyclone separator 2. The cyclone separator 2 uses centrifugal force to separate the particles and impurities in the gas. The separated clean gas enters the outlet pipe 7 through the other end of the extension integrated pipe 14. At this time, the filter cage 2 11 inside the outlet pipe 7 will further block the residual impurities. Finally, after further purification and filtration by the filter box 8, it enters the vacuum pump through the ventilation pipe 9.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An external vacuum pump filter quick-release assembly, characterized in that, include: A vacuum pump body (1) is provided. A cyclone separator (2) is installed on the outside of the vacuum pump body (1). An extension tube (14) is integrally connected to both the inlet and outlet ends of the cyclone separator. An inlet tube (3) is connected to the end of the extension tube (14) away from the cyclone separator (2). A three-way tube (4) is installed to the end of the inlet tube (3) away from the extension tube (14). An input tube (5) is installed to one end of the three-way tube (4). A flow meter (6) for detecting gas is installed to the right end of the three-way tube (4). An outlet tube (7) is connected to the extension tube (14) at the outlet end of the cyclone separator (2). A filter box (8) is installed to the end of the outlet tube (7) away from the extension tube (14). A ventilation tube (9) is connected to the outlet of the filter box (8).
2. The external vacuum pump filter quick-release assembly according to claim 1, characterized in that, The input pipe (5) and the three-way pipe (4) are connected by a thread, and the three-way pipe (4) and the inlet pipe (3) are connected by a thread. The input pipe (5) is connected to the inlet pipe (3) through the three-way pipe (4).
3. The external vacuum pump filter quick-release assembly according to claim 1, characterized in that, The inlet pipe (3) and the extension integrated pipe (14) are connected by threads, and a filter cage one (10) is installed at one end of the inlet pipe (3) embedded inside the extension pipe, and a filter cage two (11) is installed at one end of the outlet pipe (7) embedded inside the extension pipe.
4. The external vacuum pump filter quick-release assembly according to claim 1, characterized in that, The inlet pipe (3) and outlet pipe (7) are connected to the cyclone separator (2) respectively, and the cyclone separator (2) is connected to the filter box (8) through the outlet pipe (7).
5. The external vacuum pump filter quick-release assembly according to claim 1, characterized in that, The filter box (8) is fitted with a filter (12), and a filter funnel (13) is fitted with the middle of the filter (12).
6. The external vacuum pump filter quick-release assembly according to claim 1, characterized in that, The filter box (8) is connected to the vacuum pump via a ventilation pipe (9).