A detachable vacuum generator

Abstract

This invention relates to the technical field of vacuum generators, specifically to a detachable vacuum generator, comprising a vacuum generating section and a silencing section. The vacuum generating section includes a vacuum bottom cover and a vacuum top cover, which are interlocked and detachably connected. An air inlet and / or a negative pressure port are provided on either the vacuum top cover or the vacuum bottom cover. The vacuum generating section contains an air inlet chamber, a vacuum chamber, and a diffusion chamber connected sequentially. The air inlet is connected to the air inlet chamber, and the vacuum chamber is connected to the negative pressure port. The silencing section is located on one side of the vacuum generating section and contains a noise reduction processor. An air outlet is located on one side of the silencing section and is connected to the diffusion chamber through the noise reduction processor. According to actual working needs, the vacuum top cover can be removed from the vacuum bottom cover for easy cleaning of the internal air inlet chamber, vacuum chamber, and diffusion chamber. This disassembly and cleaning method further reduces the frequency of vacuum generator replacement, saving resource costs.

Description

Technical Field

[0001] This invention relates to the technical field of vacuum generators, and more specifically to a detachable vacuum generator. Background Technology

[0002] A vacuum generator is a highly efficient, clean, and small vacuum component that uses a positive pressure air source to generate negative pressure. This makes it very easy and convenient to obtain negative pressure in places where compressed air is available, or in a pneumatic system where both positive and negative pressure are required at the same time.

[0003] The main working principle of a vacuum generator is as follows: It consists of a nozzle, a receiving chamber, a mixing chamber, and a diffusion chamber. Compressed air is ejected through a contracting jet, and the resulting flow of fluid from the nozzle is called a jet. The jet can entrain surrounding stationary fluid, causing it to flow forward with it; this is called the entrainment effect of the jet. While the free jet's flow within the receiving chamber restricts its contact with the outside environment, the main jet exiting the nozzle still entrains some surrounding fluid, creating a low-pressure zone around the jet. The fluid in the receiving chamber is then drawn in, mixed with the main jet, and flows out through the other end of the receiving chamber. This phenomenon, where a high-speed fluid pulls in another fluid (stationary or low-speed flow), mixes them, and flows out together, is called the ejection phenomenon. If the pressure difference across the nozzle reaches a certain value, the airflow reaches the speed of sound or subsonic speed, thus creating a certain negative pressure at the vacuum inlet based on the siphon principle. Vacuum generators are widely used in industrial automation in fields such as machinery, electronics, packaging, printing, plastics, and robotics. The traditional use of vacuum generators is in conjunction with suction cups to adsorb and transport various materials, especially suitable for adsorbing fragile, soft, thin non-ferrous, non-metallic materials or spherical objects.

[0004] Existing vacuum generators are generally one-piece structures, making disassembly difficult. When foreign objects become lodged, cleaning and maintenance are inconvenient, necessitating the replacement of the entire vacuum generator, resulting in significant resource waste and increased production costs. Summary of the Invention

[0005] The purpose of this invention is to provide a detachable vacuum generator that is easy to disassemble and clean, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a detachable vacuum generator, comprising a vacuum generating section and a silencing section. The vacuum generating section includes a vacuum bottom cover and a vacuum top cover, which are interlocked and detachably connected. An air inlet and / or a negative pressure port are provided on the vacuum top cover or the vacuum bottom cover. The vacuum generating section contains an air inlet chamber, a vacuum chamber, and a diffusion chamber connected in sequence. The air inlet is connected to the air inlet chamber, and the vacuum chamber is connected to the negative pressure port. The silencing section is located on one side of the vacuum generating section, and a noise reduction processor is provided within the silencing section. An air outlet is located on one side of the silencing section, and the air outlet is connected to the diffusion chamber through the noise reduction processor.

[0007] Furthermore, a first chamber is connected between the air intake chamber and the vacuum chamber, and a second chamber is connected between the vacuum chamber and the diffusion chamber. Gas enters the silencer section after passing through the air intake chamber, the first chamber, the vacuum chamber, the second chamber, and the diffusion chamber in sequence.

[0008] Furthermore, the first chamber and the second chamber are directly connected, and the width of both the first chamber and the second chamber is greater than the width of the vacuum chamber. The portions of the first chamber and the second chamber that are wider than the vacuum chamber are connected by a connecting channel.

[0009] Furthermore, the first chamber, the vacuum chamber, the second chamber, and the diffusion chamber are generally symmetrical in structure, and the first chamber and the second chamber are each provided with a partition protrusion, which is located on the symmetrical line.

[0010] Furthermore, the first chamber, the vacuum chamber, the second chamber, and the diffusion chamber are all disposed on the vacuum bottom cover, and the air inlet and the negative pressure port are both disposed on the vacuum top cover.

[0011] Furthermore, the edges of the contact area between the vacuum top cover and the vacuum bottom cover are sealed.

[0012] Furthermore, the silencing part includes a silencing top cover and a silencing bottom cover, which are interlocked and detachably connected.

[0013] Furthermore, the silencing bottom cover and the vacuum bottom cover are integrally formed, and the vacuum top cover and the silencing top cover, after installation, make the vacuum generator cuboid in shape.

[0014] Furthermore, the vacuum bottom cover, the vacuum top cover, the sound-absorbing bottom cover, and the sound-absorbing top cover are all made of aluminum alloy.

[0015] Furthermore, the air inlet and the air outlet are located on the same side, and the direction of the negative pressure port is perpendicular to the direction of the air inlet and the air outlet.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. Based on actual work needs, the vacuum top cover can be removed from the vacuum bottom cover to facilitate cleaning of the internal air intake chamber, vacuum chamber, and diffusion chamber. This prevents the long-term accumulation of foreign objects and dust, which can lead to a decrease in internal air pressure and affect normal operation of the vacuum generator. Disassembly and cleaning also further reduces the frequency of vacuum generator replacement, saving resource costs and demonstrating strong practicality.

[0018] 2. The first chamber and the second chamber are directly connected, so that part of the airflow in the first chamber flows through the vacuum chamber and then flows to the second chamber, while the other part of the airflow flows directly to the second chamber through the connecting channel, which further enhances the air pressure in the second chamber and makes it flow quickly and conveniently into the diffusion chamber.

[0019] 3. The edges of the vacuum top cover and vacuum bottom cover are sealed to enhance the airtightness of the vacuum generator and ensure its vacuum level is stable.

[0020] 4. The silencing unit includes a top cover and a bottom cover, which are interlocked and detachably connected. If the sound-absorbing material inside the silencing unit becomes overfilled with foreign matter, it will cause the silencing to fail. Therefore, the top cover can be removed, and the silencing unit replaced.

[0021] 5. The air inlet and outlet are located on the same side, and the direction of the negative pressure port is perpendicular to the direction of the air inlet and outlet. This structural arrangement makes the connection of the vacuum generator more compact and saves installation space. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of a detachable vacuum generator provided in an embodiment of the present invention;

[0024] Figure 2 This invention provides a schematic diagram of the internal structure of the vacuum generating section of a detachable vacuum generator according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the internal structure of the silencing section of a detachable vacuum generator provided in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Vacuum generating section; 11. Vacuum bottom cover; 12. Vacuum top cover; 13. Air inlet; 14. Negative pressure port; 15. Air inlet chamber; 16. Vacuum chamber; 17. Diffusion chamber; 18. First chamber; 181. Connecting channel; 182. Separating protrusion; 19. Second chamber; 2. Silencing section; 21. Air outlet; 22. Silencing top cover; 23. Silencing bottom cover; 24. Silent processor. Detailed Implementation

[0028] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Reference Figures 1-3As an embodiment of the present invention, a detachable vacuum generator includes a vacuum generating section 1 and a silencing section 2. The vacuum generating section 1 includes a vacuum bottom cover 11 and a vacuum top cover 12, which are interlocked and detachably connected. The vacuum top cover 12 or the vacuum bottom cover 11 is provided with an air inlet 13 and / or a negative pressure port 14. The vacuum generating section 1 is provided with an air inlet chamber 15, a vacuum chamber 16 and a diffusion chamber 17 connected in sequence. The air inlet 13 is connected to the air inlet chamber 15, and the vacuum chamber 16 is connected to the negative pressure port 14. The silencing section 2 is provided on one side of the vacuum generating section 1. The silencing section 2 is provided with a silencer processor 24, and an air outlet 21 is provided on one side of the silencing section 2. The air outlet 21 is connected to the diffusion chamber 17 through the silencer processor 24.

[0033] Based on actual work requirements, the vacuum top cover 12 can be removed from the vacuum bottom cover 11 to facilitate cleaning of the internal air inlet chamber 15, vacuum chamber 16, and diffusion chamber 17. This prevents the long-term accumulation of foreign objects and dust from causing a decrease in internal air pressure and affecting normal operation of the vacuum generator. Disassembly and cleaning also further reduces the frequency of vacuum generator replacement, saving resource costs and demonstrating strong practicality.

[0034] Specifically, a first chamber 18 connects the air inlet chamber 15 and the vacuum chamber 16, and a second chamber 19 connects the vacuum chamber 16 and the diffusion chamber 17. Gas enters the silencer section 2 sequentially through the air inlet 13, the first chamber 18, the vacuum chamber 16, the second chamber 19, and the diffusion chamber 17. The first chamber 18, the vacuum chamber 16, the second chamber 19, and the diffusion chamber 17 are all located on the vacuum bottom cover 11, while the air inlet 13 and the negative pressure port 14 are located on the vacuum top cover 12. This structural arrangement makes the overall vacuum generator more compact after connecting the pipelines, saving installation space.

[0035] As a variable embodiment, the first chamber 18, the vacuum chamber 16, the second chamber 19, and the diffusion chamber 17 can be randomly arranged on the vacuum bottom cover 11 or the vacuum top cover 12, as long as the above-mentioned communication relationship is satisfied. The air inlet 13 and the negative pressure port 14 can also both be arranged on the vacuum bottom cover 11, or one can be arranged on the vacuum bottom cover 11 and the other on the vacuum top cover 12.

[0036] Furthermore, the first chamber 18 and the second chamber 19 are directly connected. The widths of both the first chamber 18 and the second chamber 19 are greater than the width of the vacuum chamber 16. The portions of the first chamber 18 and the second chamber 19 that are wider than the vacuum chamber 16 are connected through a connecting channel 181. The direct connection between the first chamber 18 and the second chamber 19 allows a portion of the airflow in the first chamber 18 to flow through the vacuum chamber 16 and then to the second chamber 19, while another portion of the airflow flows directly to the second chamber 19 through the connecting channel 181. This further enhances the air pressure in the second chamber 19, allowing it to flow quickly and easily into the diffusion chamber 17.

[0037] Specifically, the first chamber 18, vacuum chamber 16, second chamber 19, and diffusion chamber 17 are generally symmetrically structured. One side of the intake chamber 15 is connected to the intake port 13, and the other side has two channels that maintain communication with the first chamber 18. The first chamber 18 contains a partition protrusion 182 located on a symmetrical line. The two channels are symmetrically arranged relative to the partition protrusion 182. On the other side of the first intake chamber 15, near its center, two channels maintain communication with the vacuum chamber 16. The other side of the vacuum chamber 16 also has two channels that maintain communication with the second chamber 19. The second chamber 19 also contains a partition protrusion 182 located on a symmetrical line, and the two channels are symmetrically arranged relative to the partition protrusion 182.

[0038] In this embodiment, the first chamber 18 and the second chamber 19 are directly connected. The widths of both the first chamber 18 and the second chamber 19 are greater than the width of the vacuum chamber 16. The portions of the first chamber 18 and the second chamber 19 that are wider than the vacuum chamber 16 are connected by a connecting channel 181. There are two connecting channels 181, located near the ends of the first chamber 18, and the two connecting channels 181 are symmetrically arranged. The direct connection between the first chamber 18 and the second chamber 19 allows a portion of the airflow in the first chamber 18 to flow through the vacuum chamber 16 and then to the second chamber 19, while another portion of the airflow flows directly through the connecting channel 181 to the second chamber 19. This further enhances the air pressure in the second chamber 19, allowing it to flow quickly and easily into the diffusion chamber 17.

[0039] Furthermore, the edges of the contact area between the vacuum top cover 12 and the vacuum bottom cover 11 are sealed. Depending on the actual design requirements, sealing strips and sealing grooves can be used in combination to achieve the sealing effect.

[0040] Furthermore, the silencing unit 2 includes a silencing top cover 22 and a silencing bottom cover 23, which are interlocked and detachably connected. If the sound-absorbing material inside the silencing processor 24 is filled with too much foreign matter, it will cause the silencing to fail. Therefore, the silencing top cover 22 can be removed, and the silencing processor can be replaced.

[0041] Specifically, to facilitate the overall manufacturing of the vacuum generator, the silencing bottom cover 23 and the vacuum bottom cover 11 are integrally formed, while the vacuum top cover 12 and the silencing top cover 22 are installed by screw connection. After installation, the vacuum generator has a cuboid shape, which is regular in shape and saves space. It can also be stacked and spliced ​​at will, making installation convenient. In this embodiment, the vacuum bottom cover 11, vacuum top cover 12, silencing bottom cover 23, and silencing top cover 22 are all made of aluminum alloy, which has high strength and good corrosion resistance.

[0042] Furthermore, the air inlet 13 and the air outlet 21 are located on the same side, and the direction of the negative pressure port 14 is perpendicular to the direction of the air inlet 13 and the air outlet 21. This structural arrangement makes the connection of the vacuum generator more compact and saves installation space.

[0043] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A detachable vacuum generator, characterized in that, include: The vacuum generating unit (1) includes a vacuum bottom cover (11) and a vacuum top cover (12). The vacuum bottom cover (11) and the vacuum top cover (12) are interlocked and detachably connected. The vacuum top cover (12) or the vacuum bottom cover (11) is provided with an air inlet (13) and a negative pressure port (14). The vacuum generating unit (1) is provided with an air inlet chamber (15), a vacuum chamber (16) and a diffusion chamber (17) connected in sequence. The air inlet (13) is connected to the air inlet chamber (15), and the vacuum chamber (16) is connected to the negative pressure port (14). A silencing section (2) is provided on one side of the vacuum generating section (1). A silencer processor (24) is provided inside the silencing section (2). An air outlet (21) is provided on one side of the silencing section (2). The air outlet (21) is connected to the diffusion chamber (17) through the silencer processor (24). The silencing section (2) includes a silencing top cover (22) and a silencing bottom cover (23). The silencing top cover (22) and the silencing bottom cover (23) are interlocked and detachably connected. The silencing bottom cover (23) and the vacuum bottom cover (11) are integrally formed. After the vacuum top cover (12) and the silencing top cover (22) are installed, the vacuum generator is in the shape of a cuboid. A first chamber (18) is connected between the air intake chamber (15) and the vacuum chamber (16), and a second chamber (19) is connected between the vacuum chamber (16) and the diffusion chamber (17). Gas enters the silencing part (2) after passing through the air intake chamber (15), the first chamber (18), the vacuum chamber (16), the second chamber (19) and the diffusion chamber (17) in sequence. The first chamber (18) is directly connected to the second chamber (19). The width of both the first chamber (18) and the second chamber (19) is greater than the width of the vacuum chamber (16). The portions of the first chamber (18) and the second chamber (19) that are greater than the width of the vacuum chamber (16) are connected through a connecting channel (181).

2. The detachable vacuum generator as described in claim 1, characterized in that, The first chamber (18), the vacuum chamber (16), the second chamber (19) and the diffusion chamber (17) are generally symmetrical. The first chamber (18) and the second chamber (19) are provided with a partition protrusion (182), which is located on the line of symmetry.

3. The detachable vacuum generator as described in claim 1, characterized in that, The first chamber (18), the vacuum chamber (16), the second chamber (19) and the diffusion chamber (17) are all located on the vacuum bottom cover (11), and the air inlet (13) and the negative pressure port (14) are both located on the vacuum top cover (12).

4. The detachable vacuum generator as described in claim 1, characterized in that, The edges of the contact area between the vacuum top cover (12) and the vacuum bottom cover (11) are sealed.

5. The detachable vacuum generator as described in claim 1, characterized in that, The vacuum bottom cover (11), the vacuum top cover (12), the sound-absorbing bottom cover (23), and the sound-absorbing top cover (22) are all made of aluminum alloy.

6. The detachable vacuum generator as described in claim 1, characterized in that, The air inlet (13) and the air outlet (21) are located on the same side, and the direction of the negative pressure port (14) is perpendicular to the direction of the air inlet (13) and the air outlet (21).

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