Vacuum pump air filter assembly convenient to disassemble

Abstract

The utility model discloses a vacuum pump air filter assembly convenient to disassemble, and relates to the related technical field of vacuum pumps. The air filter comprises a filter assembly, the filter assembly comprises an outer cylinder, the center of the bottom surface of the outer cylinder is communicated with an air outlet end, and the air outlet end is provided with a fixing assembly; an end cover is arranged at the top end of the outer cylinder, a filter element is arranged in an inner cavity of the outer cylinder, and an air inlet end is communicated with the periphery of the outer cylinder; the fixing assembly comprises a first buckling piece and a second buckling piece. According to the utility model, through the arrangement of the fixing assembly, during disassembly, only the knob needs to be rotated to drive the connecting piece to move, so that the first plug connector and the second plug connector are driven to be separated, rapid disassembly can be completed, the same way is adopted for installation, the first buckling piece and the second buckling piece are directly in butt joint, and the limiting piece and the limiting groove are used for installation; the problems that in an existing scheme, most vacuum pump air filter assemblies are connected through a small part of a threaded pipe or a flange plate bolt, and disassembly and assembly cannot be convenient and fast are solved.

Description

Technical Field

[0001] This utility model belongs to the field of vacuum pump related technology, and in particular relates to a vacuum pump air filter assembly that is easy to disassemble. Background Technology

[0002] The air filter intake assembly of a vacuum pump is a key component ensuring the stable operation of the vacuum pump. It typically consists of a sealed cylindrical outer shell and a filter element assembly. The outer shell is connected to the vacuum pump's air inlet via flanges, etc. The filter element assembly contains various filter elements that can perform pre-filtration, fine filtration, and other functions. Some also integrate oil mist separation structures. Its function is to filter out dust, particulate matter, oil mist, and other impurities from the air when the vacuum pump is intake, protecting the internal parts of the vacuum pump, reducing wear, preventing pump oil contamination, maintaining the vacuum pump's pumping efficiency, and extending the equipment's service life.

[0003] However, it still has the following drawbacks in actual use: the existing vacuum pump air filter assembly is generally connected to the vacuum pump through a threaded pipe. Since the vacuum pump air filter assembly itself and the filter element need to be replaced frequently, repeated disassembly is still inconvenient, and there is still room for further improvement. Utility Model Content

[0004] The purpose of this utility model is to provide a vacuum pump air filter assembly that is easy to disassemble. This utility model solves the problem that in the existing solutions, most vacuum pump air filter assemblies are connected by threaded pipes and a few are connected by flange bolts, which makes them difficult to disassemble and assemble.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a vacuum pump air filter assembly that is easy to disassemble, including a filter component. The filter component includes an outer cylinder, and an air outlet is connected through the center of the bottom surface of the outer cylinder. A fixing component is provided on the air outlet.

[0007] An end cap is provided at the top of the outer cylinder, a filter element is provided in the inner cavity of the outer cylinder, and an air inlet is connected through the outer periphery of the outer cylinder;

[0008] The fixing component includes a first fastener and a second fastener. A first insert is provided between the two outermost peripheral sidewalls of the first fastener. An inner groove is provided at one end of the inner cavity of the first fastener. A connecting member is also provided in the inner cavity of the first fastener. One end of the connecting member passes through the inner groove and is fixedly connected to the first insert. A fixing block is also fixed in the inner cavity of the first fastener. A spring is fixed on one side of the fixing block. The end of the spring away from the fixing block is fixedly connected to the connecting member. The first fastener also includes a knob that is rotatably connected to the outer periphery of the first fastener. An outer groove is provided on the peripheral sidewall of the inner cavity of the first fastener. One end of the connecting member passes through the outer groove and is fixedly connected to the knob.

[0009] The second fastener includes a base plate, one end of which is fixed with a second plug-in that is compatible with the first plug-in, and the center of the end of the base plate away from the second plug-in is connected with a threaded tube.

[0010] Furthermore, the plug-in component 1, inner groove, connector, fixing block, spring, outer groove and plug-in component 2 located on the same side are arranged as a group, and two groups are arranged in a centrally symmetrical manner.

[0011] Furthermore, a limiting component is fixed on the outermost peripheral side wall of fastener one, and a limiting groove adapted to it is provided on the inner peripheral side wall of the outermost peripheral side wall of fastener two.

[0012] Furthermore, a spring clip is also provided on the second fastener.

[0013] Furthermore, the contact surfaces of connector one and connector two are both curved.

[0014] Furthermore, the knob is provided with anti-slip grooves, and multiple contact surfaces of fastener one and fastener two are bonded with rubber pads.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model, through its fixed components, allows for quick disassembly by simply turning a knob to move the connecting parts, thereby separating the first and second connectors. Installation is similar; the first and second fasteners are directly connected, with the limiting parts and limiting grooves used for installation. This solves the problem in existing solutions where vacuum pump air filter assemblies are mostly connected by threaded pipes, with a few connected by flange bolts, making disassembly and assembly difficult.

[0017] 2. The present invention features a fixed component in which the contact surfaces of the first and second connectors are both arc-shaped. This allows the first connector to move automatically upon collision during installation, enabling direct plug-in installation. This greatly increases the convenience of installation and solves the problem that if the device did not have an arc-shaped surface, a knob would need to be turned for installation, further improving its ease of use. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the overall appearance of this utility model;

[0019] Figure 2 This is a structural schematic diagram of the outer cylinder of this utility model from an internal perspective;

[0020] Figure 3 This is a schematic diagram of the structure of an inner cavity of the fastener of this utility model;

[0021] Figure 4 This is a top-view structural diagram of the inner cavity of this utility model;

[0022] Figure 5 This is a structural schematic diagram of the fastener of this utility model from a ground perspective;

[0023] Figure 6 This is a structural schematic diagram of the second fastener of this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the second connector and the spring sheet of this utility model.

[0025] Figure label:

[0026] 1. Filter assembly; 11. Outer cylinder; 12. Filter element; 13. End cap; 14. Air inlet; 15. Air outlet;

[0027] 2. Fixing components; 21. Fastener 1; 211. Insertion 1; 212. Inner groove; 213. Connector; 214. Fixing block; 215. Spring; 216. Outer groove; 217. Knob; 218. Limiting component;

[0028] 22. Fastener II; 221. Base plate; 222. Insertion II; 223. Limiting groove; 224. Spring piece; 23. Threaded tube. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0030] Please see Figure 1-7 As shown, this utility model is a vacuum pump air filter assembly that is easy to disassemble, including a filter component 1. The filter component 1 includes an outer cylinder 11, and an air outlet 15 is connected through the center of the bottom surface of the outer cylinder 11. A fixing component 2 is provided on the air outlet 15. The filter component 1 is used to filter the incoming gas and prevent impurities, dust, lint and other floating objects in the air from entering the vacuum pump and causing it to become blocked and damaged. The fixing component 2 is used for its fixed connection with the vacuum pump.

[0031] An end cap 13 is provided at the top of the outer cylinder 11, a filter element 12 is provided in the inner cavity of the outer cylinder 11, and an air inlet 14 is connected through the outer periphery of the outer cylinder 11. The filter element 12 plays a filtering role and forms an air inlet assembly with the outer cylinder 11, the end cap 13, the air inlet 14 and the air outlet 15 for the gas to be introduced into the vacuum pump.

[0032] The fixing component 2 includes a first fastener 21 and a second fastener 22. A first insert 211 is disposed between the two outermost peripheral sidewalls of the first fastener 21. An inner groove 212 is formed at one end of the inner cavity of the first fastener 21. A connecting member 213 is also disposed within the inner cavity of the first fastener 21. One end of the connecting member 213, passing through the inner groove 212, is fixedly connected to the first insert 211. A fixing block 214 is also fixed within the inner cavity of the first fastener 21. A spring 215 is fixed to one side of the fixing block 214, with the spring 215 located away from the fixing block 214. The first fastener 21 is fixedly connected to the connector 213. The first fastener 21 also includes a knob 217 rotatably connected to the outer periphery of the first fastener 21. An outer groove 216 is provided on the inner periphery of the first fastener 21. One end of the connector 213 passes through the outer groove 216 and is fixedly connected to the knob 217. The second fastener 22 includes a base plate 221. One end of the base plate 221 is fixed with a second plug-in 222 that is compatible with the first plug-in 211. A threaded tube 23 is connected through the center of the end of the base plate 221 away from the second plug-in 222.

[0033] The second fastener 22 is provided with a threaded tube 23. The threaded tube 23 ensures that the second fastener 22 is always stably connected to the vacuum pump. The first fastener 21 and the second fastener 22 are stably connected and easily disassembled through the matching plug-in 211. The plug-in 211 is slidably mounted on the inner groove 212 through the connector 213. A certain tension is provided by the spring 215. When fixed, the plug-in 211 and the second plug-in 222 are always in contact with each other. When disassembly is required, the knob 217 is turned to drive the connector 213 to rotate, and finally the plug-in 211 is disengaged from the second plug-in 222, which makes disassembly more convenient.

[0034] The first plug-in 211, inner groove 212, connector 213, fixing block 214, spring 215, outer groove 216 and second plug-in 222 located on the same side are arranged as a group, and two groups are arranged in a centrally symmetrical manner. The two groups of fixed and limited parts can improve the stability during fixation. The two connectors 213 are fixed on the outer knob 217. Simply turn the knob 217 to drive the two connectors 213 to move, and finally the two sets of interlocking plug-in 211 and second plug-in 222 are separated together, thus completing the quick disassembly.

[0035] A limiting member 218 is fixed on the outermost peripheral side wall of fastener 21, and a limiting groove 223 is provided on the inner peripheral side wall of fastener 22. The limiting member 218 and the limiting groove 223 cooperate to enable fastener 211 and fastener 222 to quickly align during installation, while ensuring that fastener 21 and fastener 22 do not rotate relative to each other.

[0036] The fastener 22 is also provided with a spring 224, which can provide a simple pop-out force when the outer cylinder 11 of the device is disassembled, further increasing the convenience of disassembly.

[0037] Both the contact surfaces of connector 1 211 and connector 222 are curved. When the device is installed, the two curved connectors 211 and 222 collide, causing connector 1 211 to shift on its own, thus enabling direct plug-in installation and greatly increasing the convenience of installation.

[0038] The knob 217 has an anti-slip groove, and multiple contact surfaces of the first fastener 21 and the second fastener 22 are all glued with rubber pads. The anti-slip groove can prevent the disassembly from being affected by hand slippage during disassembly. The foot pads on the contact surfaces are to increase their airtightness and prevent air leakage at the connection points.

[0039] The specific working principle of this utility model is as follows: When using this device, first install the second fastening part 22 onto the vacuum pump. Only one installation is required for continuous use. Then, install the filter assembly 1 onto the second fastening part 22 via the first fastening part 21. Then, connect the air inlet end 14 to the external pipe. At this time, start the vacuum pump to make it work normally. The device is equipped with a fixing component 2 that is easy to disassemble. When the air filter element 12 assembly needs to be disassembled, simply turn the knob 217 to move the connecting part 213, thereby causing the first plug-in part 211 and the second plug-in part 222 to separate, thus completing the quick disassembly. The installation is the same. Just connect the first fastening part 21 and the second fastening part 22. The limiting part 218 and the limiting groove 223 are aligned and installed to achieve quick installation, which greatly improves its convenience.

[0040] The above are merely preferred embodiments of the present utility model and do not limit the present utility model. Any modifications, equivalent substitutions, or improvements made to the technical solutions described in the foregoing embodiments, or to some of the technical features, shall be protected by the present utility model.

Claims

1. A vacuum pump air filter assembly for easy removal, comprising a filter assembly (1), characterized in that: The filter assembly (1) comprises an outer cylinder (11), a gas outlet (15) is connected through the center of the bottom surface of the outer cylinder (11), and a fixing assembly (2) is arranged on the gas outlet (15); An end cover (13) is arranged at the top end of the outer cylinder (11), a filter core (12) is arranged in the inner cavity of the outer cylinder (11), and an air inlet (14) is connected through the outer circumferential side of the outer cylinder (11); The fixing assembly (2) comprises a buckling piece one (21) and a buckling piece two (22), two layers of circumferential walls on the outermost side of the buckling piece one (21) are provided with a plug-in piece one (211), an inner groove (212) is formed at one end of the inner cavity of the buckling piece one (21), a connecting piece (213) is further arranged in the inner cavity of the buckling piece one (21), one end of the connecting piece (213) penetrating the inner groove (212) is fixedly connected with the plug-in piece one (211), a fixed block (214) is further fixed in the inner cavity of the buckling piece one (21), a spring (215) is fixed on one side of the fixed block (214), one end of the spring (215) away from the fixed block (214) is fixedly connected with the connecting piece (213), the buckling piece one (21) further comprises a knob (217) rotatably connected to the outer circumferential side of the buckling piece one (21), an outer groove (216) is formed in the circumferential wall of the inner cavity of the buckling piece one (21), and one end of the connecting piece (213) penetrating the outer groove (216) is fixedly connected with the knob (217); The buckling piece two (22) comprises a bottom plate (221), one end of the bottom plate (221) is fixedly connected with a plug-in piece two (222) matched with the plug-in piece one (211), and a threaded pipe (23) is connected through the center of the end of the bottom plate (221) away from the plug-in piece two (222).

2. A conveniently detachable vacuum pump air filter assembly as claimed in claim 1, wherein: The plug-in piece one (211), the inner groove (212), the connecting piece (213), the fixed block (214), the spring (215), the outer groove (216) and the plug-in piece two (222) located on the same side form a group and are centrally symmetrically arranged in two groups.

3. A conveniently detachable vacuum pump air filter assembly as claimed in claim 1, wherein: A limiting piece (218) is fixed on the outer circumferential side of the outermost circumferential wall of the buckling piece one (21), and a limiting groove (223) matched with the limiting piece (218) is formed on the inner circumferential side of the outermost circumferential wall of the buckling piece two (22).

4. A conveniently detachable vacuum pump air filter assembly as claimed in claim 1, wherein: The buckling piece two (22) is further provided with a spring piece (224).

5. A conveniently detachable vacuum pump air filter assembly as claimed in claim 1, wherein: One side of the plug-in piece one (211) and the plug-in piece two (222) in contact with each other is arc-shaped.

6. A conveniently removable vacuum pump air filter assembly as claimed in claim 1, wherein: A plurality of contact surfaces of the buckling piece one (21) and the buckling piece two (22) are bonded with rubber pads.

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