Vacuum negative pressure unit with filtering structure

Abstract

The invention relates to the technical field of environmental protection, and discloses a vacuum negative pressure unit with a filtering structure, which comprises a vacuum negative pressure casing, an air storage tank arranged in the vacuum negative pressure casing, an air pump mounted at the end part of the air storage tank, a filtering tank mounted between the air pump and the air storage tank, and a first air pipe mounted at the side part of the filtering tank, a second air pipe is further connected to the side of the filtering tank, the other end of the first air pipe is connected to the side of the air storage tank, and a filtering assembly is installed in the filtering tank. Through the arrangement of the filtering tank, when gas is treated by the gas pump and flows to the filtering tank through the first gas pipe, tiny particles, oil mist or impurities in the gas are filtered out when the gas passes through the gas flow barrel, then the gas flows to the second gas pipe through the first gas hole, the second gas hole and the third gas hole, and the filtering tank can remarkably improve the purity of the gas. And the filtering of tiny particles, oil mist and impurities ensures the cleanness of the gas, so that the risk of blockage in application is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection, in particular to a vacuum negative pressure unit with a filtering structure. Background Art

[0002] A vacuum negative pressure unit is a device used to generate and maintain a vacuum environment. It is widely used in industrial production, laboratory research, medical equipment and other fields. It extracts the air or gas in the container by mechanical or physical methods to form a negative pressure state below atmospheric pressure, thereby achieving specific process requirements or experimental conditions. A vacuum negative pressure unit is usually composed of a vacuum pump, a vacuum gauge, a control system and pipelines. The vacuum pump is the core component responsible for extracting gas and reducing air pressure. Common types of vacuum pumps include rotary vane pumps, roots pumps, root pumps, molecular pumps, etc. Different types of pumps are suitable for different vacuum degrees and pumping speed requirements. The vacuum gauge is used to monitor and display the air pressure inside the system in real time to ensure that the vacuum degree meets the expected standard. The control system is responsible for the start, stop, adjustment and safety protection of the equipment to ensure the stable operation of the unit. The vacuum negative pressure unit is widely used, such as vacuum coating in the electronics manufacturing industry, vacuum packaging in the food processing industry, preparation of drugs or aseptic operation in the medical field, vacuum drying or sample processing in the laboratory, etc. Its working principle and performance directly affect the efficiency of related processes and product quality, so it is very important to choose a suitable vacuum negative pressure unit and perform reasonable maintenance.

[0003] At present, during the vacuum pumping process, some tiny particles, oil mist or impurities may be brought in. If these materials enter the gas cylinder, it may not only affect the purity of the gas in the gas cylinder, but also cause quality problems in subsequent applications; therefore, it does not meet the existing needs, and we propose a vacuum negative pressure unit with a filtering structure. Summary of the invention

[0004] The present invention provides a vacuum negative pressure unit with a filtering structure, which has the beneficial effect of filtering tiny particles, oil mist and impurities to ensure the cleanliness of the gas, thereby reducing the risk of blockage, corrosion or damage that may occur in the application, and solves the problem mentioned in the background technology that some tiny particles, oil mist or impurities may be brought into the process of vacuum pumping. If these materials enter the gas cylinder, it may not only affect the purity of the gas in the gas cylinder, but also cause quality problems in subsequent applications.

[0005] The present invention provides the following technical solution: a vacuum negative pressure unit with a filtering structure, comprising a vacuum negative pressure casing, an air storage tank being arranged inside the vacuum negative pressure casing, an air pump being installed at the end of the air storage tank, a filter tank being installed between the air pump and the air storage tank, a first air pipe being installed on the side of the filter tank, the other end of the first air pipe being connected to the side of the air pump, a second air pipe being further connected to the side of the filter tank, the other end of the first air pipe being connected to the side of the air storage tank, and a filter assembly being installed inside the filter tank.

[0006] As an optional solution for a vacuum negative pressure unit with a filtering structure described in the present invention, wherein: the side portion of the first air pipe is set as a threaded section, the bottom of the filter tank is provided with a first connecting groove, the first connecting groove is set as a threaded groove, the first air pipe is threadedly matched with the first connecting groove, the end portion of the second air pipe is set as a threaded section, the side portion of the filter tank is provided with a second connecting groove, the second connecting groove is set as a threaded groove, and the second air pipe is threadedly matched with the second connecting groove.

[0007] As an optional solution for a vacuum negative pressure unit with a filtering structure described in the present invention, wherein: the filter tank is internally connected to an airflow cylinder, the airflow cylinder, the filter tank, the first air pipe and the second air pipe are connected, a connecting rod is connected between the airflow cylinder and the filter tank, a plurality of first air holes are opened on the side of the connecting rod, the end of the airflow cylinder is set as a threaded section, and the first air pipe is threadedly matched with the end of the airflow cylinder.

[0008] As an optional solution for a vacuum negative pressure unit with a filtering structure described in the present invention, wherein: the filtering component includes a connecting cover and a fixing column, the inner wall of the connecting cover is set as a threaded section, the end of the first air pipe is set as a threaded section, the connecting cover is threadedly connected to the end of the first air pipe, the fixing column is connected to the bottom of the connecting cover, the other end of the fixing column is set as a threaded section, and the end of the fixing column is threadedly connected to a limiting cover.

[0009] As an optional solution for a vacuum negative pressure unit with a filtering structure described in the present invention, wherein: the first filter plate and the second filter plate are respectively threadedly connected to the outer side of the fixed column, the first filter plate is set as a molecular sieve plate, the second filter plate is set as an activated carbon plate, a plurality of second air holes are opened on the surface of the connecting cover, and a plurality of third air holes are opened on the side of the end of the air flow cylinder.

[0010] As an optional solution for a vacuum negative pressure unit with a filtering structure described in the present invention, the bottom of the filter tank is connected to a mounting base plate, the bottom of the filter tank is connected to an extension plate, and a locking mechanism is installed on the side of the mounting base plate, and the locking mechanism is used in conjunction with the extension plate and the first air pipe respectively.

[0011] As an optional solution of a vacuum negative pressure unit with a filtering structure described in the present invention, wherein: a first snap-fitting hole is opened on the side of the extension plate, a second snap-fitting hole is opened on the side of the first air pipe, and the first snap-fitting hole and the second snap-fitting hole are arranged correspondingly.

[0012] As an optional solution of a vacuum negative pressure unit with a filtering structure described in the present invention, the locking mechanism includes a pressing plate and a rotating shaft, the rotating shaft penetrates the side of the pressing plate, and the rotating shaft is connected to the side of the mounting base plate.

[0013] As an optional solution for a vacuum negative pressure unit with a filtering structure described in the present invention, wherein: the end of the pressing plate is connected to a locking column, the bottom of the pressing plate is connected to a return spring, the side of the extension plate is provided with a slot, the return spring is connected to the inside of the slot, and the locking column is locked in the inside of the first locking hole and the second locking hole.

[0014] As an optional solution for a vacuum negative pressure unit with a filtering structure described in the present invention, wherein: an installation groove is opened on the side of the connecting cover, a rotating ring is connected inside the installation groove, a rotating shaft is connected to the side of the rotating ring, and the rotating shaft is connected to the side of the installation groove.

[0015] The present invention has the following beneficial effects:

[0016] 1. The vacuum negative pressure unit with a filtering structure is provided with a filter tank. When the gas is processed by the air pump and flows to the filter tank through the first air pipe, the tiny particles, oil mist or impurities inside the gas are filtered when the gas passes through the gas cylinder, and then flows to the second air pipe through the first air hole, the second air hole and the third air hole. The filter tank can significantly improve the purity of the gas. The filtering of tiny particles, oil mist and impurities ensures the cleanliness of the gas, thereby reducing the risk of blockage, corrosion or damage that may occur in the application, and solves the problem of some tiny particles, oil mist or impurities being brought in during the vacuum pumping process. If these materials enter the gas storage cylinder, it may not only affect the purity of the gas in the gas storage cylinder, but also cause quality problems in subsequent applications.

[0017] 2. The vacuum negative pressure unit with a filtering structure is provided with a filtering assembly, and the filtering assembly cooperates with the filtering tank. When installing, the first filter plate and the second filter plate are threadedly connected to the side of the fixing column, the filtering assembly is threadedly connected to the end of the first air pipe, and the first air pipe is threadedly connected to the ends of the air flow cylinder and the filtering tank. When disassembling, the threads are disassembled, and the threaded connection facilitates the installation and disassembly of the filtering assembly. Compared with other fixing methods, when cleaning, the threaded connection only requires a simple rotation operation to complete the disassembly, which greatly saves time and labor costs.

[0018] 3. The vacuum negative pressure unit with a filtering structure is provided with a locking assembly, and the locking assembly cooperates with the extension plate and the first air pipe. When installing the first air pipe, the pressing plate is pressed, and the pressing plate drives the rotating shaft to rotate and squeezes the reset spring, so that the engaging column is unlocked from the first engaging hole and the second engaging hole. After the installation is completed, the pressing plate is released, and the pressing column is engaged with the first engaging hole and the second engaging hole, ensuring that the air pipe will not loosen due to vibration or other external forces during operation, thereby improving the stability and reliability of the system and making the entire solution better. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the enlarged structure of point A in the figure of the present invention.

[0021] Figure 3 It is a schematic diagram of the cutaway structure of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the filter assembly of the present invention.

[0023] Figure 5 It is a schematic diagram of the half-section structure of the filter tank of the present invention.

[0024] Figure 6 It is a schematic diagram of the connection cover structure of the present invention.

[0025] Figure 7 For the present invention Figure 3 Schematic diagram of the enlarged structure at B.

[0026] Figure 8 It is a schematic diagram of the locking mechanism structure of the present invention.

[0027] In the figure: 110, vacuum negative pressure housing; 111, gas storage tank; 120, air pump; 121, air flow cylinder; 122, connecting rod; 123, first air hole; 130, filter tank; 131, first air pipe; 132, second air pipe; 133, first connecting groove; 134, second connecting groove; 140, filter assembly; 141, connecting cover; 142, fixing column; 143, limiting cover; 144, first filter Filter plate; 145, second filter plate; 150, second air hole; 151, third air hole; 152, mounting base; 153, extension plate; 160, locking mechanism; 161, pressing plate; 162, rotating shaft; 163, engaging column; 164, notch; 165, reset spring; 170, first engaging hole; 171, second engaging hole; 172, mounting groove; 173, rotating shaft; 174, rotating ring. DETAILED DESCRIPTION

[0028] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: This embodiment is intended to help solve the problem of some tiny particles, oil mist or impurities being introduced into the gas cylinder during the vacuum pumping process. If these materials enter the gas cylinder, it may not only affect the purity of the gas in the gas cylinder, but also cause quality problems in subsequent applications. Please refer to Figure 1-8 A vacuum negative pressure unit with a filtering structure includes a vacuum negative pressure casing 110, an air storage tank 111 is arranged inside the vacuum negative pressure casing 110, an air pump 120 is installed at the end of the air storage tank 111, a filter tank 130 is installed between the air pump 120 and the air storage tank 111, a first air pipe 131 is installed on the side of the filter tank 130, the other end of the first air pipe 131 is connected to the side of the air pump 120, a second air pipe 132 is also connected to the side of the filter tank 130, the other end of the first air pipe 131 is connected to the side of the air storage tank 111, and a filter assembly 140 is installed inside the filter tank 130.

[0030] The side of the first air pipe 131 is set as a threaded section, the bottom of the filter tank 130 is provided with a first connecting groove 133, the first connecting groove 133 is set as a threaded groove, the first air pipe 131 is threadedly matched with the first connecting groove 133, the end of the second air pipe 132 is set as a threaded section, the side of the filter tank 130 is provided with a second connecting groove 134, the second connecting groove 134 is set as a threaded groove, the second air pipe 132 is threadedly matched with the second connecting groove 134.

[0031] The filter tank 130 is internally connected to the air flow cylinder 121, and the air flow cylinder 121, the filter tank 130, the first air pipe 131 and the second air pipe 132 are connected. A connecting rod 122 is connected between the air flow cylinder 121 and the filter tank 130, and a plurality of first air holes 123 are opened on the side of the connecting rod 122. The end of the air flow cylinder 121 is set as a threaded section, and the first air pipe 131 is threadedly matched with the end of the air flow cylinder 121.

[0032] By designing the end of the gas flow cylinder 121 as a threaded section and making it threaded with the first air pipe 131, the system structure can be simplified, the number of parts can be reduced, and thus the manufacturing cost and complexity can be reduced. The threaded connection design allows the first air pipe 131 to be easily disassembled and replaced. When the filter tank 130 needs to be cleaned or replaced, the operation can be completed by simply rotating, which greatly simplifies the maintenance process. The threaded connection can improve the sealing of the connection part by adding a sealing gasket or using a sealant. This is crucial to prevent gas leakage, especially in a high-pressure environment. The threaded connection has high structural stability and can withstand certain pressures and vibrations. This helps to ensure that the system remains stable during long-term use and reduces maintenance requirements. The threaded connection design facilitates standardized production, improves production efficiency, reduces costs, and is compatible and replaceable with other standard parts.

[0033] In this embodiment: through the setting of the filter tank 130, when the gas is processed by the air pump 120 and flows to the filter tank 130 through the first air pipe 131, the tiny particles, oil mist or impurities inside the gas are filtered when the gas passes through the gas cylinder 121, and then flows to the second air pipe 132 through the first air hole 123, the second air hole 150 and the third air hole 151. The filter tank 130 can significantly improve the purity of the gas. The filtering of tiny particles, oil mist and impurities ensures the cleanliness of the gas, thereby reducing the risk of blockage, corrosion or damage that may occur in the application, and solves the problem that some tiny particles, oil mist or impurities may be brought in during the vacuum pump extraction process. If these materials enter the gas storage cylinder, it may not only affect the purity of the gas in the gas storage cylinder, but also may cause quality problems in subsequent applications.

[0034] Embodiment 2: This embodiment is intended to solve the problem of inconvenience in cleaning the filter tank 130. This embodiment is an improvement made on the basis of Embodiment 1. For details, please refer to Figure 1-8 The filter assembly 140 includes a connecting cover 141 and a fixing column 142. The inner wall of the connecting cover 141 is set as a threaded section, the end of the first air pipe 131 is set as a threaded section, the connecting cover 141 is threadedly connected to the end of the first air pipe 131, the fixing column 142 is connected to the bottom of the connecting cover 141, the other end of the fixing column 142 is set as a threaded section, and the end of the fixing column 142 is threadedly connected to the limiting cover 143.

[0035] The outer side of the fixing column 142 is respectively threadedly connected with a first filter plate 144 and a second filter plate 145, the first filter plate 144 is a molecular sieve plate, the second filter plate 145 is an activated carbon plate, a plurality of second air holes 150 are opened on the surface of the connection cover 141, and a plurality of third air holes 151 are opened on the side of the end of the air flow tube 121;

[0036] Molecular sieve plates have the characteristics of molecular sieves and can effectively filter small particles and water molecules in the gas. Since the pore size of the molecular sieve is controllable, it can selectively filter the diameter of specific molecules, thereby improving the purity of the gas. Activated carbon plates are excellent adsorbents for pollutants and odors, and can remove organic matter, odors and other volatile components in the gas. Combined with the use of molecular sieve plates, this hierarchical distribution filtration system can achieve more comprehensive gas purification.

[0037] The bottom of the filter tank 130 is connected to a mounting base plate 152, the bottom of the filter tank 130 is connected to an extension plate 153, a locking mechanism 160 is installed on the side of the mounting base plate 152, the locking mechanism 160 is used in conjunction with the extension plate 153 and the first air pipe 131 respectively, a first engaging hole 170 is opened on the side of the extension plate 153, a second engaging hole 171 is opened on the side of the first air pipe 131, and the first engaging hole 170 and the second engaging hole 171 are arranged correspondingly;

[0038] See Figure 3 , wherein the direction of the arrow represents the direction of the gas flow, and the gas flows from the first air hole 123, the second air hole 150 and the third air hole 151 to the second air pipe 132 respectively.

[0039] In this embodiment: the filter assembly 140 is arranged, and the filter assembly 140 cooperates with the filter tank 130. When installing, the first filter plate 144 and the second filter plate 145 are threadedly connected to the side of the fixing column 142, and the filter assembly 140 is threadedly connected to the end of the first air pipe 131, and then the first air pipe 131 is threadedly connected to the ends of the air flow cylinder 121 and the filter tank 130. When disassembling, the thread is disassembled, and the threaded connection facilitates the installation and disassembly of the filter assembly 140. Compared with other fixing methods, when cleaning, the threaded connection only needs a simple rotation operation to complete the disassembly, which greatly saves time and labor costs.

[0040] Embodiment 3: This embodiment is intended to solve the problem that the thread of the filter tank 130 is loosened due to long-term gas impact. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-8 The locking mechanism 160 includes a pressing plate 161 and a rotating shaft 162. The rotating shaft 162 is inserted into the side of the pressing plate 161 and is connected to the side of the mounting base plate 152. A locking column 163 is connected to the end of the pressing plate 161. A return spring 165 is connected to the bottom of the pressing plate 161. A notch 164 is provided on the side of the extension plate 153. The return spring 165 is connected to the inside of the notch 164. The locking column 163 is engaged with the first locking hole 170 and the second locking hole 171. A mounting groove 172 is provided on the side of the connecting cover 141. A rotating ring 174 is connected to the inside of the mounting groove 172. A rotating shaft 173 is connected to the side of the rotating ring 174. The rotating shaft 173 is connected to the side of the mounting groove 172.

[0041] When cleaning is needed, the first air pipe 131 and the filter tank 130 are threadedly unlocked, the rotating ring 174 on the side of the connection cover 141 is pulled out, and the rotating ring 174 is rotated to unlock the locking assembly and the first air pipe 131 threads, allowing the user to quickly unlock and remove the connection cover 141, simplifying the cleaning process, saving time and manpower. Regular cleaning can prevent the accumulation of foreign matter in the filter tank 130 and the air pipe, ensure the normal operation of the device, and improve the use efficiency.

[0042] In this embodiment: through the setting of the locking assembly, the locking assembly cooperates with the extension plate 153 and the first air pipe 131. When installing the first air pipe 131, the pressing plate 161 is pressed, and the pressing plate 161 drives the rotating shaft 162 to rotate and squeezes the return spring 165, so that the locking column 163 is unlocked from the first locking hole 170 and the second locking hole 171. After the installation is completed, the pressing plate 161 is released, and the pressing column is engaged with the first locking hole 170 and the second locking hole 171, ensuring that the air pipe will not loosen due to vibration or other external forces during operation, thereby improving the stability and reliability of the system and making the entire solution better.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vacuum negative pressure unit with a filtering structure, comprising a vacuum negative pressure housing (110), wherein an air storage tank (111) is arranged inside the vacuum negative pressure housing (110), an air pump (120) is installed at the end of the air storage tank (111), and a filtering tank (130) is installed between the air pump (120) and the air storage tank (111), characterized in that: A first air pipe (131) is installed on the side of the filter tank (130), and the other end of the first air pipe (131) is connected to the side of the air pump (120). A second air pipe (132) is also connected to the side of the filter tank (130), and the other end of the first air pipe (131) is connected to the side of the air storage tank (111). A filter assembly (140) is installed inside the filter tank (130).

2. The vacuum negative pressure unit with a filtering structure according to claim 1, characterized in that: The side of the first air pipe (131) is configured as a threaded section, the bottom of the filter tank (130) is provided with a first connecting groove (133), the first connecting groove (133) is configured as a threaded groove, the first air pipe (131) is threadedly matched with the first connecting groove (133), the end of the second air pipe (132) is configured as a threaded section, the side of the filter tank (130) is provided with a second connecting groove (134), the second connecting groove (134) is configured as a threaded groove, and the second air pipe (132) is threadedly matched with the second connecting groove (134).

3. The vacuum negative pressure unit with a filtering structure according to claim 1, characterized in that: The filter tank (130) is internally connected to an air flow cylinder (121); the air flow cylinder (121), the filter tank (130), the first air pipe (131) and the second air pipe (132) are connected; a connecting rod (122) is connected between the air flow cylinder (121) and the filter tank (130); a plurality of first air holes (123) are provided on the side of the connecting rod (122); an end portion of the air flow cylinder (121) is provided as a threaded section; the first air pipe (131) is threadedly matched with an end portion of the air flow cylinder (121).

4. The vacuum negative pressure unit with a filtering structure according to claim 3, characterized in that: The filter assembly (140) comprises a connecting cover (141) and a fixing column (142); the inner wall of the connecting cover (141) is configured as a threaded section; the end of the first air pipe (131) is configured as a threaded section; the connecting cover (141) is threadedly connected to the end of the first air pipe (131); the fixing column (142) is connected to the bottom of the connecting cover (141); the other end of the fixing column (142) is configured as a threaded section; and the end of the fixing column (142) is threadedly connected to a limiting cover (143).

5. The vacuum negative pressure unit with a filtering structure according to claim 4, characterized in that: The outer side of the fixing column (142) is respectively threadedly connected with a first filter plate (144) and a second filter plate (145); the first filter plate (144) is configured as a molecular sieve plate, and the second filter plate (145) is configured as an activated carbon plate; a plurality of second air holes (150) are provided on the surface of the connecting cover (141); and a plurality of third air holes (151) are provided on the side of the end of the air flow tube (121).

6. The vacuum negative pressure unit with a filtering structure according to claim 1, characterized in that: The bottom of the filter tank (130) is connected to a mounting base plate (152), the bottom of the filter tank (130) is connected to an extension plate (153), a locking mechanism (160) is installed on the side of the mounting base plate (152), and the locking mechanism (160) is used in conjunction with the extension plate (153) and the first air pipe (131) respectively.

7. The vacuum negative pressure unit with a filtering structure according to claim 6, characterized in that: A first engaging hole (170) is opened on the side of the extension plate (153), and a second engaging hole (171) is opened on the side of the first air pipe (131), and the first engaging hole (170) and the second engaging hole (171) are arranged correspondingly.

8. The vacuum negative pressure unit with a filtering structure according to claim 6, characterized in that: The locking mechanism (160) comprises a pressing plate (161) and a rotating shaft (162), wherein the rotating shaft (162) penetrates the side of the pressing plate (161), and the rotating shaft (162) is connected to the side of the mounting base plate (152).

9. The vacuum negative pressure unit with a filtering structure according to claim 8, characterized in that: The end of the pressing plate (161) is connected to a locking column (163), the bottom of the pressing plate (161) is connected to a return spring (165), a slot (164) is provided on the side of the extension plate (153), the return spring (165) is connected to the inside of the slot (164), and the locking column (163) is locked in the inside of the first locking hole (170) and the second locking hole (171).

10. The vacuum negative pressure unit with a filtering structure according to claim 1, characterized in that: The side of the connection cover (141) is provided with a mounting groove (172), the interior of the mounting groove (172) is connected with a rotating ring (174), the side of the rotating ring (174) is connected with a rotating shaft (173), and the rotating shaft (173) is connected to the side of the mounting groove (172).

Images