A portable vacuum pump

Abstract

This utility model relates to the field of vacuum pump technology, specifically a portable vacuum pump, including a mounting box. The bottom of the mounting box is equipped with several sets of rollers. A drive motor and a pump body are fixedly mounted on the bottom of the inner cavity of the mounting box. An exhaust pipe is fixedly connected to the exhaust port of the pump body, and an intake pipe is fixedly connected to the intake port of the pump body. A filter assembly for filtering the intake gas is installed on the intake pipe. A support assembly for supporting the mounting box is installed on the mounting box. By rotating the connecting pipe, the sealing pipe and the intake pipe are threaded together and securely connected by a limiting mechanism. Disassembly can be performed by reversing the operation, greatly simplifying the disassembly and assembly process of the filter cartridge, avoiding damage to other components during maintenance, significantly improving maintenance efficiency, and reducing maintenance difficulty.

Description

Technical Field

[0001] This utility model relates to the field of vacuum pump technology, specifically a portable vacuum pump. Background Technology

[0002] In the field of vacuum pumps, the inclusion of a filtration structure is a common design feature. Its purpose is to ensure the quality of the pumped gas and protect the pump's internal components. A filtration structure effectively prevents impurities, dust, and particulate matter in the gas from entering the pump body, thereby reducing wear on the pump's moving parts and extending its service life.

[0003] However, the pursuit of miniaturization and weight reduction presents new challenges for portable vacuum pumps. Their compact design leaves extremely limited space for the filter structure. This makes routine cleaning and replacement of the filter difficult. In many cases, technicians need to use special tools and employ complex disassembly procedures to access the filter, which not only consumes a significant amount of time and effort but also increases the difficulty of maintenance.

[0004] Furthermore, during the disassembly and assembly of the filter structure of a portable vacuum pump, the tightly packed components in the compact structure are easily affected by the disassembly operation, posing a risk of accidental damage to other parts. This not only increases maintenance costs but also reduces the reliability and stability of the portable vacuum pump.

[0005] To facilitate the maintenance of the filter structure of portable vacuum pumps, improve maintenance efficiency, reduce maintenance difficulty, and ensure the service life and operational stability of portable vacuum pumps, we propose a portable vacuum pump. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a portable vacuum pump that facilitates the maintenance of the pump's filter structure, improves maintenance efficiency, reduces maintenance difficulty, and ensures the service life and operational stability of the portable vacuum pump.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A portable vacuum pump includes a mounting box, the bottom of which is provided with several sets of rollers, a drive motor and a pump body are fixedly installed at the bottom of the inner cavity of the mounting box, the exhaust port of the pump body is fixedly connected to an exhaust pipe, the intake port of the pump body is fixedly connected to an intake pipe, a filter assembly for filtering the intake gas is installed on the intake pipe, and a support assembly for supporting the mounting box is installed on the mounting box.

[0009] The filter assembly includes a filter cartridge disposed on the right side of the intake pipe. An installation pipe is fixedly connected to the left end of the filter cartridge. A sealing pipe is fixedly connected to the inner wall of the installation pipe. The sealing pipe is threaded and threadedly connected to the inner wall of the intake pipe. A sealing ring is fixedly connected to the inner wall of the intake pipe. A sealing ring is provided at the end of the sealing ring and the sealing pipe that are close to each other. A connecting pipe is fixedly connected to the right end of the filter cartridge. A limiting mechanism for fixing the position of the connecting pipe is installed on the connecting pipe.

[0010] Preferably, the limiting mechanism includes a limiting ring, which is slidably sleeved on the outside of the connecting pipe. Several sets of sliders are fixedly connected to the inner wall of the limiting ring. The connecting pipe has a sliding groove that matches the slider, and the slider is slidably connected to the sliding groove. Several sets of limiting blocks are fixedly connected to the side of the limiting ring near the filter cylinder. Several sets of limiting grooves that match the limiting blocks are opened on the mounting box. A spring is fixedly connected to the side of the limiting ring away from the filter cylinder. The end of the spring away from the limiting ring is fixedly connected to the connecting pipe.

[0011] Preferably, the support assembly includes a center plate disposed below the mounting box. Several sets of mounting plates are fixedly connected to the side wall of the center plate. Several sets of mounting covers are fixedly connected to the inner wall of the mounting box. A lifting rod is slidably connected to the inner wall of the mounting cover. The lifting rod slides through the mounting box. The bottom of the lifting rod is fixedly connected to the top of the mounting plate. A screw is threaded through one set of lifting rods. The screw rotates through the mounting box.

[0012] Preferably, a pull rod is hinged to the top of the screw, and a storage groove matching the pull rod is provided on the top of the mounting box.

[0013] Preferably, a bolt is rotatably mounted on the mounting plate, an adjusting plate is provided at the bottom of the mounting plate, the bolt thread passes through the adjusting plate, and the side of the adjusting plate near the center plate is slidably connected to the center plate.

[0014] Preferably, the mounting box is provided with several sets of heat dissipation holes, and the bottom of the adjusting plate and the center plate are both provided with rubber pads.

[0015] Beneficial effects

[0016] This invention provides a portable vacuum pump. Compared with the prior art, it has the following advantages:

[0017] This portable vacuum pump features a screw-on connection between the sealing tube and the suction tube via a rotating connecting pipe, secured by a limiting mechanism. Disassembly is performed by simply reversing the operation, greatly simplifying the filter cartridge assembly and disassembly process. This prevents damage to other components during maintenance, significantly improving maintenance efficiency and reducing maintenance difficulty. During operation, the filter cartridge effectively blocks impurities, dust, and particulate matter in the gas, effectively reducing wear on moving parts of the pump body, thereby significantly extending the pump's service life and ensuring long-term stable operation of the equipment. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0019] Figure 2 This is a schematic diagram of the main body structure of this utility model from a bottom view;

[0020] Figure 3 This is an exploded view of the internal structure of the mounting box of this utility model;

[0021] Figure 4 This is an exploded view of the disassembly and assembly components of this utility model.

[0022] In the diagram: 1. Mounting box; 2. Storage slot; 3. Pull rod; 4. Exhaust pipe; 5. Roller; 6. Adjusting plate; 7. Connecting pipe; 8. Heat dissipation hole; 9. Center plate; 10. Mounting plate; 11. Spring; 12. Drive motor; 13. Pump body; 14. Filter cartridge; 15. Screw; 16. Lifting rod; 17. Mounting cover; 20. Bolt; 21. Mounting pipe; 22. Suction pipe; 23. Limiting ring; 24. Limiting block; 25. Sealing pipe; 26. Sealing ring. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a portable vacuum pump, including a mounting box 1, with several sets of rollers 5 at the bottom of the mounting box 1, a drive motor 12 and a pump body 13 fixedly mounted at the bottom of the inner cavity of the mounting box 1, an exhaust pipe 4 fixedly connected to the exhaust port of the pump body 13, an intake pipe 22 fixedly connected to the intake port of the pump body 13, a filter assembly for filtering the intake gas installed on the intake pipe 22, and a support assembly for supporting the mounting box 1 installed on the mounting box 1;

[0025] The filter assembly includes a filter cartridge 14, which is located on the right side of the intake pipe 22. An installation pipe 21 is fixedly connected to the left end of the filter cartridge 14. A sealing pipe 25 is fixedly connected to the inner wall of the installation pipe 21. The sealing pipe 25 is threaded and threaded to the inner wall of the intake pipe 22. A sealing ring 26 is fixedly connected to the inner wall of the intake pipe 22. A sealing ring is provided at the end of the sealing ring 26 and the sealing pipe 25 that are close to each other. A connecting pipe 7 is fixedly connected to the right end of the filter cartridge 14. A limiting mechanism for fixing the position of the connecting pipe 7 is installed on the connecting pipe 7.

[0026] The installation box 1 has a compact structure and small size, making it easy to carry or move on the ground using the wheels 5. In use, align the sealing tube 25 with the suction pipe 22, and rotate the connecting pipe 7 to rotate the sealing tube 25, allowing the threaded sealing tube 25 to pass into the suction pipe 22 until it abuts against the sealing ring 26. The two sets of sealing rings are tightly pressed together, ensuring a tight seal. The position of the connecting pipe 7 is then fixed by a limiting mechanism to prevent rotation due to vibration, collision, or other external forces, ensuring connection stability. This completes the installation of the filter cartridge 14. To remove the filter cartridge 14, release the limiting mechanism and rotate the connecting pipe 7 in the opposite direction. The disassembly and assembly process is convenient and quick, without affecting other components, improving maintenance efficiency and reducing maintenance difficulty. The pump body 13 is driven by the drive motor 12, connecting the connecting pipe 7 and the exhaust pipe 4 to the external pipeline. Gas enters through the connecting pipe 7, is filtered by the filter cartridge 14, and then passes through the mounting pipe 21 and the suction pipe 22 into the pump body 13, finally exiting through the exhaust pipe 4. The filter cartridge 14 effectively prevents impurities, dust, and particulate matter in the gas from entering the pump body 13, thereby reducing wear on the moving parts of the pump body 13 and extending its service life. During use, the operation of the drive motor 12 and the pump body 13 will inevitably cause vibration of the mounting box 1. The mounting box 1 is supported by the support assembly, which, compared to the rollers 5, makes the mounting box 1 more stable and prevents displacement, ensuring normal use.

[0027] The limiting mechanism includes a limiting ring 23, which is slidably sleeved on the outside of the connecting pipe 7. Several sets of sliders are fixedly connected to the inner wall of the limiting ring 23. The connecting pipe 7 has a sliding groove that matches the slider. The slider and the sliding groove are slidably connected. Several sets of limiting blocks 24 are fixedly connected to the side of the limiting ring 23 near the filter cylinder 14. Several sets of limiting grooves that match the limiting blocks 24 are opened on the mounting box 1. A spring 11 is fixedly connected to the side of the limiting ring 23 away from the filter cylinder 14. The end of the spring 11 away from the limiting ring 23 is fixedly connected to the connecting pipe 7.

[0028] During the connection process, manually pull the limiting ring 23 to bring it closer to the connecting pipe 7, causing the limiting block 24 to disengage from the limiting groove, so that the connecting pipe 7 can rotate normally. After the connection is completed, release the limiting ring 23, and under the action of the spring 11, the limiting block 24 is inserted into the limiting groove, so that the connecting pipe 7 can no longer rotate.

[0029] The support assembly includes a center plate 9, which is located below the mounting box 1. Several sets of mounting plates 10 are fixedly connected to the side wall of the center plate 9. Several sets of mounting covers 17 are fixedly connected to the inner wall of the mounting box 1. A lifting rod 16 is slidably connected to the inner wall of the mounting cover 17. The lifting rod 16 slides through the mounting box 1. The bottom of the lifting rod 16 is fixedly connected to the top of the mounting plate 10. A screw 15 is threaded through one set of lifting rods 16. The screw 15 rotates through the mounting box 1.

[0030] Rotating screw 15 causes lifting rod 16 to descend, which in turn causes center plate 9 to descend via mounting plate 10, so that center plate 9 replaces roller 5 to support mounting box 1.

[0031] A pull rod 3 is hinged to the top of the screw 15, and a storage slot 2 matching the pull rod 3 is provided on the top of the mounting box 1. The mounting box 1 can be placed on the ground as a whole and dragged by the pull rod 3, further increasing portability and reducing the labor intensity of workers.

[0032] Bolts 20 are rotatably mounted on the mounting plate 10. An adjusting plate 6 is provided at the bottom of the mounting plate 10. The bolts 20 are threaded through the adjusting plate 6. The side of the adjusting plate 6 closest to the center plate 9 is slidably connected to the center plate 9.

[0033] After the mounting plate 10 descends a certain distance, the bolt 20 is exposed. If the ground is uneven, a tool can be used to rotate the bolt 20 to drive the adjusting plate 6 to rise and fall. By adjusting the height of each set of adjusting plates 6, the mounting box 1 is brought to a horizontal position to ensure the stability of the equipment operation.

[0034] The mounting box 1 has several sets of heat dissipation holes 8, and the bottom of the adjustment plate 6 and the center plate 9 are both equipped with rubber pads.

[0035] Working Principle: The installation box 1 has a compact structure and small size, making it easy to carry or move on the ground using the wheels 5. In use, align the sealing tube 25 with the suction pipe 22, manually pull the limiting ring 23 to bring it closer to the connecting pipe 7, causing the limiting block 24 to disengage from the limiting groove, allowing the connecting pipe 7 to rotate normally. Then rotate the connecting pipe 7 to rotate the sealing tube 25, causing the sealing tube 25 to thread into the suction pipe 22 until it abuts against the sealing ring 26. The two sets of sealing rings are tightly pressed together, ensuring a tight seal. After connection, release the limiting ring 23. Under the action of the spring 11, the limiting block 24 inserts into the limiting groove, preventing the connecting pipe 7 from rotating due to vibration, collision, or other external forces, ensuring connection stability. This completes the installation of the filter cartridge 14. Release the limiting ring and rotate the connecting pipe 7 in the opposite direction to remove the filter cartridge 14 for cleaning and maintenance. The disassembly and assembly process is convenient and quick, without affecting other components, improving maintenance efficiency and reducing maintenance difficulty. The pump body 13 is driven by the drive motor 12, connecting the connecting pipe 7 and the exhaust pipe 4 to the external pipeline. Gas enters through the connecting pipe 7, is filtered by the filter cartridge 14, and then enters the pump body 13 through the mounting pipe 21 and the suction pipe 22, finally exiting through the exhaust pipe 4. The filter cartridge 14 effectively prevents impurities, dust, and particulate matter in the gas from entering the pump body 13, thereby reducing the wear of the moving parts of the pump body 13 and extending its service life. During use, the operation of the drive motor 12 and the pump body 13 will inevitably cause the mounting box 1 to vibrate. Rotating the screw 15 drives the lifting rod 16 to descend, which in turn drives the center plate 9 to descend through the mounting plate 10. The center plate 9 replaces the roller 5 to support the mounting box 1. Compared with the roller 5, this makes the mounting box 1 more stable and prevents displacement, ensuring normal use. After the mounting plate 10 descends a certain distance, the bolt 20 is exposed. If the ground is uneven, a tool can be used to rotate the bolt 20 to drive the adjusting plate 6 to rise and fall. By adjusting the height of each set of adjusting plates 6, the mounting box 1 is brought to a horizontal position to ensure the stability of the equipment operation.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] 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 portable vacuum pump comprising a mounting box (1), characterized in that: The bottom of the mounting box (1) is provided with several sets of rollers (5). The bottom of the inner cavity of the mounting box (1) is fixedly installed with a drive motor (12) and a pump body (13). The exhaust port of the pump body (13) is fixedly connected to an exhaust pipe (4). The air intake port of the pump body (13) is fixedly connected to an air intake pipe (22). A filter assembly for filtering the intake gas is installed on the air intake pipe (22). A support assembly for supporting the mounting box (1) is installed on the mounting box (1). The filter assembly includes a filter cylinder (14), which is located on the right side of the air intake pipe (22). The left end of the filter cylinder (14) is fixedly connected to an installation pipe (21). A sealing pipe (25) is fixedly connected to the inner wall of the installation pipe (21). The sealing pipe (25) is threaded on the outside and threaded to the inner wall of the air intake pipe (22). A sealing ring (26) is fixedly connected to the inner wall of the air intake pipe (22). A sealing ring is provided at the end of the sealing ring (26) and the sealing pipe (25) that are close to each other. A connecting pipe (7) is fixedly connected to the right end of the filter cylinder (14). A limiting mechanism for fixing the position of the connecting pipe (7) is installed on the connecting pipe (7).

2. A portable vacuum pump according to claim 1, characterized in that: The limiting mechanism includes a limiting ring (23), which is slidably sleeved on the outside of the connecting pipe (7). Several sets of sliders are fixedly connected to the inner wall of the limiting ring (23). The connecting pipe (7) has a sliding groove that matches the slider. The slider and the sliding groove are slidably connected. Several sets of limiting blocks (24) are fixedly connected to the side of the limiting ring (23) near the filter cylinder (14). Several sets of limiting grooves that match the limiting blocks (24) are opened on the mounting box (1). A spring (11) is fixedly connected to the side of the limiting ring (23) away from the filter cylinder (14). The end of the spring (11) away from the limiting ring (23) is fixedly connected to the connecting pipe (7).

3. A portable vacuum pump according to claim 1, characterized in that: The support assembly includes a center plate (9), which is located below the mounting box (1). Several sets of mounting plates (10) are fixedly connected to the side wall of the center plate (9). Several sets of mounting covers (17) are fixedly connected to the inner wall of the mounting box (1). A lifting rod (16) is slidably connected to the inner wall of the mounting cover (17). The lifting rod (16) slides through the mounting box (1). The bottom of the lifting rod (16) is fixedly connected to the top of the mounting plate (10). A screw (15) is threaded through one set of lifting rods (16). The screw (15) rotates through the mounting box (1).

4. A portable vacuum pump according to claim 3, characterized in that: The top of the screw (15) is hinged to a pull rod (3), and the top of the mounting box (1) is provided with a storage groove (2) that matches the pull rod (3).

5. A portable vacuum pump according to claim 3, characterized in that: Bolts (20) are rotatably mounted on the mounting plate (10). An adjusting plate (6) is provided at the bottom of the mounting plate (10). The bolts (20) are threaded through the adjusting plate (6). The adjusting plate (6) is slidably connected to the center plate (9) on the side near the center plate (9).

6. A portable vacuum pump according to claim 5, characterized in that: The mounting box (1) is provided with several sets of heat dissipation holes (8), and the bottom of the adjusting plate (6) and the center plate (9) are both provided with rubber pads.

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