Silent belt self-cleaning vacuum pump

Abstract

The utility model relates to a silent self-cleaning vacuum pump, which comprises a vacuum distributor provided with a cleaning component used for blowing dust impurities attached to the inner side of the cleaning component away from the vacuum distributor; the negative pressure forming assembly is detachably installed on the vacuum distributor and used for enabling the vacuum distributor to form negative pressure and discharging airflow in the snake-shaped flow direction at the same time so as to achieve a mute state; and at least one grabbing system component is detachably installed on the peripheral side of the vacuum distributor and used for being in butt joint with an external negative pressure gas circuit. The utility model has the advantages of simple and compact structure and high integration level, and can effectively save energy waste.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum pumps, in particular to a silent belt self-cleaning vacuum pump. Background Art

[0002] Existing Chinese patent CN 200880008508.9 discloses a vacuum system that utilizes a filter cartridge to achieve a simple, compact structure. This system has a fast vacuum response speed and low vacuum loss compared to compressed air. However, this system still has the following technical problems:

[0003] 1) The jet pump silencer uses a spiral to extend the length of the airflow to achieve silence. This silencer cannot achieve a silent state and will also limit the flow (about 20%), which leads to negative pressure formation, poor efficiency and energy waste.

[0004] 2) The cleaning effect is not ideal, which will still affect the effect of the silent self-cleaning vacuum pump. Summary of the Invention

[0005] The purpose of the utility model is to provide a silent self-cleaning vacuum pump with a simple and compact structure, high integration, and the ability to effectively save energy waste, so as to solve the above technical problems.

[0006] To achieve the above technical solution, the technical solution of the utility model is as follows: a silent belt self-cleaning vacuum pump, comprising:

[0007] a vacuum distributor, wherein the vacuum distributor is provided with a cleaning assembly for blowing dust and impurities attached to the inner side thereof away from the vacuum distributor;

[0008] a negative pressure forming assembly, detachably mounted on the vacuum distributor, for causing the vacuum distributor to generate negative pressure while discharging airflow in a serpentine direction to achieve a silent state; and

[0009] a gripping system component, at least one of which is detachably mounted on a peripheral side of the vacuum distributor for docking with an external negative pressure air circuit;

[0010] Among them: a cleaning air path is connected to the cleaning component and the grabbing system component at the same time, which is used to break the negative pressure of the grabbing system component and open the cleaning valve to discharge dust and impurities inside the vacuum distributor.

[0011] Furthermore, the silent belt self-cleaning vacuum pump also includes a control component; the control component is sealedly connected to the vacuum distributor, and the cleaning air path is connected to the air path of the control component.

[0012] Furthermore, the control component includes a control valve body; a vacuum control valve and a purge control valve are detachably mounted on the control valve body, and a closed-loop control display vacuum switch is provided between adjacent vacuum control valves and purge control valves.

[0013] Furthermore, the vacuum distributor is a vacuum distributor with filtration; the cleaning component and the vacuum distributor are integrally formed, and the air outlet end is located at the center of the cleaning component.

[0014] Furthermore, the negative pressure molding component is a 3D flow-around silent muffler.

[0015] Furthermore, a diaphragm that can be opened and closed is provided on the connecting hole between the supersonic vacuum tube inside the 3D flow-through muffler and the vacuum distributor.

[0016] Furthermore, the gripping system component includes an air flow distribution block connected to the vacuum distributor; an air pipe connection switch is arrayed on the air flow distribution block; and one end of the air flow distribution block is connected to the clean air path.

[0017] Furthermore, the air flow distribution block is provided with an openable and closable valve switch; the air pipe connection switch is a ball valve switch.

[0018] Furthermore, the valve switch is a one-way valve or a solenoid valve.

[0019] Furthermore, a purge control valve pilot piston and a vacuum control valve pilot piston are inserted into the control valve body.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1) The utility model adopts a 3D flow-around silent muffler design. Specifically, by utilizing the serpentine airflow design on the 3D flow-around silent muffler and adjusting the position of the "partition" by design, the volumes of the seven "anti-phase compartments" are different, thereby changing the sound wave phase of each compartment, so that the sound wave phase of each compartment is opposite to the sound wave phase of the previous compartment. Therefore, after the sound waves of the two compartments are superimposed, the sound pressure amplitude is reduced due to the same sound pressure amplitude but opposite sound pressure phase, so the sound wave amplitude is reduced and the sound pressure is weakened, and the noise is reduced until it reaches a silent state. This serpentine gas flow design can effectively avoid the flow limitation problem caused by the spiral extending the airflow too long, so that the vacuum response time is fast and the vacuum degree can be as high as -95KPa;

[0022] 2) The utility model is designed to connect the cleaning air path and the cleaning assembly to the gripping system components at the same time, so as to break the negative pressure of the gripping system components and open the cleaning valve to discharge the dust and impurities inside the vacuum distributor. This prevents the dust and impurities from reattaching to the inside of the connecting pipe or falling onto the surface of the material along the pipeline when the negative pressure is broken, thereby improving the overall handling efficiency;

[0023] 3) The utility model integrates complex control structures into the same part by designing the control components, so that the entire vacuum pump has a high degree of integration; it is convenient for users to quickly connect the air pipe;

[0024] 4) The utility model can maintain the pressure of the vacuum distributor by controlling the vacuum switch of the component, cooperating with the supersonic vacuum tube and the diaphragm that can be opened and closed on the communicating hole of the vacuum distributor. That is, when the negative pressure value reaches the set value, the vacuum switch starts to control the solenoid valve to cut off. Under the action of the diaphragm, a closed cavity is constructed to complete the pressure maintenance. Otherwise, the solenoid valve is controlled to connect to complete the automatic vacuuming. The whole process can automatically maintain the pressure within the set range, avoiding the waste caused by the need to keep the compressed air on all the time.

[0025] 5) The present invention can maximize the use of negative pressure while facilitating quick wiring by providing a grabbing system component to connect to the vacuum distributor, thereby ensuring maximum use of negative pressure while achieving quick gas line connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the disclosure of this invention and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, those skilled in the art will understand other possible implementations and the advantages of this invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0027] Figure 1 This is an exploded view of the silent self-cleaning vacuum pump of the utility model;

[0028] Figure 2 This is an exploded view of the control component of the utility model;

[0029] Figure 3 This is a schematic diagram of the vacuum airflow of the silent belt self-cleaning vacuum pump of the utility model. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0032] Please see the attached Figures 1 to 3 As shown: A silent belt self-cleaning vacuum pump, comprising: a vacuum distributor 1, a negative pressure forming component 3 and a gripping system component 4. The vacuum distributor 1 is provided with a cleaning component 11, which is used to blow dust impurities attached to the inner side thereof away from the vacuum distributor 1; the negative pressure forming component 3 is detachably mounted on the vacuum distributor 1, and is used to form negative pressure while discharging the airflow along a serpentine flow direction to achieve a silent state; at least one gripping system component 4 is detachably mounted on the peripheral side of the vacuum distributor 1, and is used to connect to an external negative pressure air circuit. Specifically, when in use, a cleaning air circuit is connected to the cleaning component 11 and the gripping system component 4 at the same time, and is used to break the negative pressure of the gripping system component 4 while opening the cleaning valve to discharge dust impurities inside the vacuum distributor 1. The utility model is designed to connect the cleaning air path and the cleaning component with the grasping system component at the same time, so as to break the negative pressure of the grasping system component and open the cleaning valve to discharge the dust and impurities inside the vacuum distributor, so as to prevent the dust and impurities from re-attaching to the inside of the connecting pipe or falling on the surface of the material along the pipeline when the negative pressure is broken, thereby improving the overall handling efficiency.

[0033] Based on the above embodiment, the silent belt self-cleaning vacuum pump further includes a control component 2 for automatically controlling the on / off of the air circuit to achieve free control. The control component 2 is sealedly connected to the vacuum distributor 1, and the clean air circuit is connected to the control component 2. This arrangement makes the entire vacuum pump highly integrated and convenient for users to quickly connect the air pipe.

[0034] Based on the above embodiment, the control component 2 includes a control valve body 21; a vacuum control valve 22 and a purge control valve 23 are detachably mounted on the control valve body 21, and a closed-loop control display vacuum switch 24 is provided between adjacent vacuum control valves 22 and purge control valves 23.

[0035] Based on the above embodiment, the vacuum distributor 1 is a vacuum distributor with filtering; the cleaning component 11 is integrally formed with the vacuum distributor, and the air outlet is located at the center of the cleaning component 11. When in use, the cleaning air path is instantly connected. At this time, the high-speed airflow instantly rushes to the filter on the vacuum distributor. At this time, the impurities attached to the filter are shaken and fall off at the moment of impact and are discharged from the entire silent belt self-cleaning vacuum pump along with the airflow, thereby improving the efficiency of forming negative pressure while reducing energy loss.

[0036] Based on the above embodiment, the negative pressure forming component 3 is a 3D bypass silent silencer; by utilizing the serpentine airflow design on the 3D bypass silent silencer and coordinating the design to adjust the position of the "partition", the volumes of the 7 "anti-phase compartments" are different, thereby changing the sound wave phase of each compartment, so that the sound wave phase of each compartment is opposite to the sound wave phase of the previous compartment. Therefore, after the sound waves of the two compartments are superimposed, the sound pressure amplitude is the same but the sound pressure phase is opposite, so the sound wave amplitude is reduced and the sound pressure is weakened, and the noise becomes smaller until it is silent. This serpentine gas flow design can effectively avoid the flow limiting problem caused by the spiral to extend the airflow length to achieve the purpose of silence, so that the vacuum response time is fast and the vacuum degree can be as high as -95KPa.

[0037] Based on the above embodiment, the 3D bypass muffler features an openable and closable diaphragm on the communication hole between the supersonic vacuum tube and the vacuum distributor 1. This control component, in conjunction with the openable and closable diaphragm on the communication hole between the supersonic vacuum tube and the vacuum distributor, maintains pressure in the vacuum distributor and controls the solenoid valve to continue operating, reducing compressed air waste.

[0038] Based on the above embodiment, the grabbing system component 4 includes an air flow distribution block 41 connected to the vacuum distributor 1; an air pipe connection switch 42 is arrayed on the air flow distribution block 41; one end of the air flow distribution block 41 is connected to the clean air path.

[0039] Based on the above embodiment, the air flow distribution block 41 is provided with an openable and closable valve switch; the air pipe connection switch 42 is a ball valve switch.

[0040] By setting up the gripping system components to connect to the vacuum distributor, it is possible to maximize the use of negative pressure while facilitating quick wiring, which ensures maximum use of negative pressure while achieving quick gas line connection.

[0041] Based on the above embodiment, the valve switch is a one-way valve or a solenoid valve.

[0042] Based on the above embodiment, a purge control valve pilot piston 25 and a vacuum control valve pilot piston 26 are inserted into the control valve body 21 to adjust the flow rate of the airflow.

[0043] In summary, by adopting the above design, the utility model has a simple and compact structure, high integration, and can effectively save energy waste.

[0044] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art should be able to utilize the technical contents disclosed above and make equivalent embodiments that are equivalent changes by making slight changes or modifications without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A silent self-cleaning vacuum pump, characterized in that: include: A vacuum distributor (1) is provided with a cleaning assembly (11) for blowing dust and impurities attached to the inner side of the vacuum distributor (1) away from the vacuum distributor (1); a negative pressure forming assembly (3) detachably mounted on the vacuum distributor (1) for forming negative pressure inside the vacuum distributor (1) while discharging airflow in a serpentine direction to achieve a silent state; and a gripping system component (4), at least one of the gripping system components (4) being detachably mounted on a peripheral side of the vacuum distributor (1) for docking with an external negative pressure air circuit; Wherein: a cleaning air path is connected to the cleaning component (11) and the grabbing system component (4) at the same time, and is used to break the negative pressure of the grabbing system component (4) and open the cleaning valve to discharge dust and impurities inside the vacuum distributor (1).

2. The silent belt self-cleaning vacuum pump according to claim 1, characterized in that: The silent belt self-cleaning vacuum pump further comprises a control component (2); the control component (2) is sealedly connected to the vacuum distributor (1), and the cleaning air path is connected to the air path of the control component (2).

3. The silent belt self-cleaning vacuum pump according to claim 2, characterized in that: The control component (2) comprises a control valve body (21); a vacuum control valve (22) and a purge control valve (23) are detachably mounted on the control valve body (21); and a vacuum switch (24) for closed-loop control display is provided between adjacent vacuum control valves (22) and purge control valves (23).

4. The silent belt self-cleaning vacuum pump according to claim 1, characterized in that: The vacuum distributor (1) is a vacuum distributor with filtration; the cleaning component (11) is integrally formed with the vacuum distributor, and the air outlet is located at the center of the cleaning component (11).

5. The silent belt self-cleaning vacuum pump according to claim 1, characterized in that: The negative pressure forming component (3) is a 3D flow-around silent muffler.

6. The silent belt self-cleaning vacuum pump according to claim 5, characterized in that: A diaphragm that can be opened and closed is provided on the communication hole between the supersonic vacuum tube inside the 3D flow-through muffler and the vacuum distributor (1).

7. The silent belt self-cleaning vacuum pump according to claim 1, characterized in that: The gripping system component (4) comprises an air flow distribution block (41) connected to the vacuum distributor (1); an air pipe connection switch (42) is arranged in an array on the air flow distribution block (41); and one end of the air flow distribution block (41) is connected to the clean air path.

8. The silent belt self-cleaning vacuum pump according to claim 7, characterized in that: The air flow distribution block (41) is provided with an openable and closable valve switch; the air pipe connection switch (42) is a ball valve switch.

9. The silent belt self-cleaning vacuum pump according to claim 8, characterized in that: The valve switch is a one-way valve or a solenoid valve.

10. The silent belt self-cleaning vacuum pump according to claim 3, characterized in that: A purge control valve pilot piston (25) and a vacuum control valve pilot piston (26) are inserted into the control valve body (21).

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