Pipeline gas overflow filtering device for biological laboratory

Abstract

This invention discloses a pipeline overflow filtration device for biological laboratories, relating to the field of pipeline overflow filtration technology. It includes a pipeline on which a filter device is fixedly installed. The filter device includes a protective shell fixedly installed on the pipeline, a cleaning channel fixedly connected to the bottom left side of the protective shell, a cover plate at the bottom of the cleaning channel, and a pair of fixing seats fixedly installed on the top inner side of the protective shell. It also includes a filter assembly, a fixing mechanism, and an adjustment mechanism. This invention, by setting up a multi-layer filter device and a fixing and adjustment mechanism, solves the problems of the aforementioned patented filter for laboratory overflow filtration. Specifically, this filter only has one filtration stage, resulting in unsatisfactory filtration efficiency. Furthermore, impurities in the pipeline can easily affect the filter's effectiveness, and the filter element cannot be quickly replaced, thus affecting usability and filtration efficiency.

Description

Technical Field

[0001] This invention relates to the field of pipeline overflow filtration technology, and in particular to pipeline overflow filtration devices for biological laboratories. Background Technology

[0002] Spills in biological laboratories are usually gases, vapors, smog, or particulate matter generated during experiments. These substances contain harmful or potential pathogens, chemicals, or other pollutants. Direct release of these spills would have an impact on the environment. In laboratories, a series of safety measures are taken, such as using pipeline filtration devices to purify the emitted gases and reduce the generation of hazards.

[0003] Patent document CN208406365U discloses a high-efficiency filter for overflow gas in a biosafety laboratory pipeline, comprising a disinfection port 1, an aerosol sampling port 1, an aerosol sampling port 2, an aerosol main inlet, a scanning detection section, a static pressure section, a high-efficiency filtration section, an upper pipeline, and a lower pipeline. The lower end of the upper pipeline is connected to the side wall of the high-efficiency filtration section, and the upper pipeline is equipped with the disinfection port 2. The scanning detection section is fixed to the upper end of the high-efficiency filtration section, and the upper end of the scanning detection section is connected to the disinfection port 1. The lower side of the scanning detection section is equipped with the aerosol sampling port 2. The upper end of the static pressure section is connected to the lower end of the high-efficiency filtration section, and the lower end of the static pressure section is connected to the upper end of the lower pipeline. The middle part of the lower pipeline is equipped with the aerosol sampling port 1, and the lower part of the lower pipeline is equipped with the aerosol main inlet.

[0004] However, the above invention has the following shortcomings: when using the filter of the above patent to filter the overflow gas in the laboratory, the filter only has one filtration process, and the filtration effect on the overflow gas is not ideal. At the same time, impurities in the pipeline can easily affect the filtration effect of the filter. In addition, the filter element in the filter cannot be replaced quickly, which can easily affect the use and filtration effect. Summary of the Invention

[0005] The purpose of this invention is to provide a pipeline overflow filtration device for biological laboratories to solve the problems mentioned in the background art. This device filters gases and other substances generated during the experiment by setting up a three-layer filtration device, thereby improving the filtration effect. Furthermore, the setting of fixing and adjusting mechanisms facilitates the replacement of the filtration device and avoids the reduction of filtration effect due to long-term use.

[0006] The technical solution of the present invention is: a pipeline overflow filtration device for biological laboratories, comprising a pipeline, a filter device fixedly installed on the pipeline, the filter device comprising a protective shell fixedly installed on the pipeline, a cleaning channel fixedly connected to the bottom left side of the protective shell, a cover plate provided at the bottom of the cleaning channel, a pair of fixing seats fixedly installed on the top inner side of the protective shell, and further comprising a filter assembly, a fixing mechanism and an adjustment mechanism.

[0007] A filter assembly comprising a first filter and a second filter slidably mounted on the bottom of a pair of fixed seats.

[0008] The fixing mechanism includes a pair of fixing grooves that are fixedly installed on the bottom of the protective shell.

[0009] An adjustment mechanism, comprising a fixing block fixedly installed at the bottom of the connecting block.

[0010] Preferably, a filter plate is fixedly installed inside the protective shell near the cleaning channel, and the bottoms of the first filter and the second filter are interlocked with the tops of the corresponding connecting blocks.

[0011] Preferably, a pair of connecting blocks are slidably installed on the bottom of the protective shell, and a through hole adapted to the connecting blocks is opened on the fixing groove, and the connecting blocks and the fixing groove are slidably engaged.

[0012] Preferably, a pair of limiting grooves are fixedly installed on the inner wall of each of the fixed grooves, a limiting block is slidably installed inside each of the limiting grooves, and a spring is fixedly connected between the inner bottom of each limiting groove and the limiting block.

[0013] Preferably, each of the fixed blocks has two sets of fixed rods fixedly installed at its bottom, and each fixed rod has a pull block fixedly installed at its end. Each of the fixed blocks has a pair of springs fixedly installed at its bottom, and the bottom of each pair of springs has a movable plate fixedly installed.

[0014] Preferably, a spring three is fixedly installed at the bottom of the movable plate, and a pressure block is fixedly installed at the other end of the spring three. Both ends of the movable plate are rotatably installed with connecting rods via movable shafts. A locking block is fixedly installed at the top of each connecting rod, and a pair of hinges are fixedly installed on the upper surface of the pressure block. The bottom of each connecting rod is rotatably connected to the hinge.

[0015] Preferably, the top of the card block is arc-shaped, and the connecting rod is L-shaped.

[0016] Preferably, the left and right ends of the connecting block are provided with grooves, and the top of the groove is inclined.

[0017] Preferably, the first filter is a HEPA high-efficiency particulate air filter, and the second filter is a ULPA ultra-high-efficiency particulate air filter.

[0018] The present invention provides an improved pipeline overflow filtration device for biological laboratories, which, compared with the prior art, has the following improvements and advantages: Firstly, this invention, by setting a filter plate inside the protective shell, can easily filter out impurities, preventing them from entering the first and second filters and affecting the subsequent filtration effect. In addition, the set limiting groove and limiting block can effectively fix the connecting block, ensuring the normal operation of the filter. Furthermore, by pressing the pressing block, the connecting rod will move. When the locking block at the end of the connecting rod contacts the limiting block, the locking block will squeeze the limiting block, causing the limiting block to move into the limiting groove, thereby achieving the limiting effect on the connecting block. After the locking block is engaged with the locking groove on the connecting block, under the action of spring two and spring three, the connecting rod will move with the connecting block. Finally, the connecting block is pulled out by the pull block. At this time, the filter engaged with the connecting block can be removed for easy replacement, preventing the filter effect from becoming unsatisfactory after long-term use. Secondly, this invention features a cleaning channel and a cover plate at the bottom of the protective shell. During operation, the cover plate is closed to prevent gases and other substances generated during the experiment from escaping from the cleaning channel. After filtration is complete, the cover plate can be opened to clean the cleaning channel and the impurities generated during filtration. This not only improves the cleanliness of the device but also ensures the smooth operation of subsequent filtration processes. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the overall first-view structure provided for the present invention; Figure 2 This is a schematic diagram of the filtration device provided by the present invention; Figure 3 This is a schematic diagram of the fixed component structure provided by the present invention; Figure 4 This is a partial structural diagram of the fixing component provided by the present invention; Figure 5 This is a schematic diagram of the adjustment component structure provided by the present invention.

[0021] Figure label: 1. Pipeline; 2. Filter device; 21. Protective shell; 22. Filter plate; 23. Cleaning channel; 24. Cover plate; 25. Fixing base; 26. First filter; 27. Second filter; 28. Fixing mechanism; 281. Connecting block; 282. Fixing groove; 283. Limiting groove; 284. Limiting block; 285. Spring one; 286. Adjusting mechanism; 2861. Fixing block; 2862. Fixing rod; 2863. Pulling block; 2864. Spring two; 2865. Movable plate; 2866. Connecting rod; 2867. Locking block; 2868. Hinge; 2869. Pressing block; 28610. Spring three. Detailed Implementation

[0022] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0023] This invention provides an improved pipeline overflow filtration device for biological laboratories. The technical solution of this invention is as follows: like Figures 1 to 5 As shown, this embodiment of the invention provides a pipeline overflow filtration device for biological laboratories, including a pipeline 1, a filter device 2 fixedly installed on the pipeline 1, the filter device 2 including a protective shell 21 fixedly installed on the pipeline 1, a cleaning channel 23 fixedly connected to the bottom left side of the protective shell 21, a cover plate 24 provided at the bottom of the cleaning channel 23, a pair of fixing seats 25 fixedly installed on the top inner side of the protective shell 21, and also including a filter assembly, a fixing mechanism 28 and an adjustment mechanism 286. By installing the filter device 2 on the pipeline 1, the gases and other substances generated in the experiment can be filtered to prevent them from polluting the environment. The fixing mechanism 28 can provide stable support for the filter assembly, while the adjustment mechanism 286 can adjust the filter assembly for easy replacement.

[0024] The filter assembly includes a first filter 26 and a second filter 27 that are slidably mounted on the bottom of a pair of fixed seats 25. The first filter 26 and the second filter 27 can be used to fully filter impurities such as gases generated in the experiment, thereby improving the filtration effect of the device.

[0025] The fixing mechanism 28 includes a pair of fixing grooves 282 fixedly installed at the bottom of the protective shell 21. The fixing grooves 282 can fix the filter assembly and prevent loosening during filtration, which would affect the filtration effect.

[0026] The adjustment mechanism 286 includes a fixing block 2861 fixedly installed at the bottom of the connecting block 281. The fixing block 2861 can drive the connecting block 281 to move, making it easy to adjust and thus achieve the purpose of replacing the filter component. At the same time, the fixing block 2861 can also play a certain supporting and connecting role.

[0027] Furthermore, a filter plate 22 is fixedly installed inside the protective shell 21 near the cleaning channel 23. The bottoms of the first filter 26 and the second filter 27 are interlocked with the tops of the corresponding connecting blocks 281. The filter plate 22 can perform preliminary filtration of larger impurities. The first filter 26 and the second filter 27, which are set by interlocking, can not only meet the filtration needs but also facilitate their replacement, thus improving the ease of operation.

[0028] Furthermore, a pair of connecting blocks 281 are slidably installed on the bottom of the protective shell 21, and through holes adapted to the connecting blocks 281 are opened on the fixing groove 282. The connecting blocks 281 and the fixing groove 282 are slidably engaged. The slidably installed connecting blocks 281 and the fixing groove 282 are also slidably engaged, which improves the flexibility of the device and facilitates the adjustment and replacement of the internal structure of the device.

[0029] As a further embodiment of the present invention, a pair of limiting grooves 283 are fixedly installed on the inner wall of each fixing groove 282, and a limiting block 284 is slidably installed inside each limiting groove 283. A spring 285 is fixedly connected between the inner bottom of each limiting groove 283 and the limiting block 284. By using the combination of the limiting grooves 283 and the limiting blocks 284, the connecting block 281 can be limited to prevent it from moving, which would cause the filter assembly to shift and thus affect the filtration effect. The limiting effect of the limiting block 284 can be improved by the setting of the spring 285.

[0030] Furthermore, two sets of fixing rods 2862 are fixedly installed at the bottom of each fixing block 2861, and a pull block 2863 is fixedly installed at the end of each fixing rod 2862. A pair of springs 2864 are fixedly installed at the bottom of each fixing block 2861, and a movable plate 2865 is fixedly installed at the bottom of the pair of springs 2864. The pull block 2863 and the fixing block 2861 are connected by the fixing rods 2862, which makes it easy to control the movement of the fixing block 2861 by pulling the pull block 2863. In addition, the springs 2864 not only improve the buffering capacity of the device, but also, by utilizing the characteristics of the springs, can drive the movable plate 2865 to move to a certain extent, providing convenience for subsequent operations.

[0031] Furthermore, a spring 28610 is fixedly installed at the bottom of the movable plate 2865, and a pressure block 2869 is fixedly installed at the other end of the spring 28610. Both ends of the movable plate 2865 are rotatably mounted with connecting rods 2866 via movable shafts. A locking block 2867 is fixedly installed at the top of each connecting rod 2866. A pair of hinges 2868 are fixedly installed on the upper surface of the pressure block 2869. The bottom of each connecting rod 2866 is rotatably connected to the hinges 2868. By using the pressure block 2869 and the spring 28610, the movable plate 2865 can not only be moved by the spring 28610, but the connecting rods 2866 can also be moved by the hinges 2868, so that the locking block 2867 can abut against the limiting block 284 and engage with the connecting block 281 at the same time.

[0032] Furthermore, the top of the locking block 2867 is arc-shaped, and the connecting rod 2866 is "L"-shaped. The arc-shaped top of the locking block 2867 makes it easier to engage the locking block 2867 with the connecting block 281 and allows the locking block 2867 to better push the limiting block 284 to move. The "L"-shaped connecting rod 2866 allows the connecting rod 2866 to better control the movement of the locking block 2867.

[0033] Furthermore, both sides of the connecting block 281 are provided with grooves, and the top of the grooves is inclined. Both sides of the connecting block 281 are provided with grooves, and the grooves fit with the top of the locking block 2867, so that the locking block 2867 can be easily inserted into the connecting block 281, thereby facilitating the movement of the connecting block 281.

[0034] Furthermore, the first filter 26 is a HEPA high-efficiency particulate air filter, and the second filter 27 is a ULPA ultra-high-efficiency particulate air filter. Using two different filters not only improves the filtration effect, but also filters more different types of impurities, thus improving the practicality of the device.

[0035] Specific working method: Before use, the filter device 2 is installed on the pipeline 1. The gas to be filtered first passes through the filter plate 22 for initial filtration, intercepting larger particles or impurities in the overflow gas. The particles or impurities fall into the cleaning channel 23, which can be cleaned by opening the cover plate 24. Afterward, the overflow gas passes through the filter plate 22 and then through the first filter 26 and the second filter 27 for further filtration. The overflow gas then reaches the discharge outlet through the pipeline 1 for discharge. After the first filter 26 and the second filter 27 have been used for a period of time, the pressure block 2869 is pushed upward, causing the pressure block 2869 to compress the spring 28610, which in turn drives the connecting rod 2866 to rotate along the shaft. When the clamping block 2867 rotates, and the pressing block 2869 continues to move upward, it pushes the movable plate 2865 to move. The movable plate 2865 drives the connecting rod 2866 to move, so that the clamping block 2867 contacts and squeezes the limiting block 284, thereby canceling the limiting effect of the limiting block 284 and the connecting block 281. After the clamping block 2867 is embedded in the groove on the connecting block 281, it will move the connecting block 281 to a certain extent under the action of the spring. By pulling the pulling block 2863, the fixing block 2861 is moved through the fixing rod 2862, which in turn moves the connecting block 281. The movement of the connecting block 281 can move the first filter 26 and the second filter 27, so as to facilitate the removal and replacement of the filters from the device.

[0036] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipeline overflow filtration device for biological laboratories, comprising a pipeline (1), wherein a filter device (2) is fixedly installed on the pipeline (1), and the filter device (2) comprises a protective shell (21) fixedly installed on the pipeline (1), characterized in that: The protective shell (21) has a cleaning channel (23) fixedly connected to its left bottom, and a cover plate (24) is provided at the bottom of the cleaning channel (23). A pair of fixing seats (25) are fixedly installed on the inner top of the protective shell (21). The protective shell (21) also includes: A filter assembly comprising a first filter (26) and a second filter (27) slidably mounted on the bottom of a pair of fixed seats (25); The fixing mechanism (28) includes a pair of fixing grooves (282) fixedly installed on the bottom of the protective shell (21); The adjustment mechanism (286) includes a fixing block (2861) fixedly installed at the bottom of the connecting block (281). A pair of connecting blocks (281) are slidably installed at the bottom of the protective shell (21), and a through hole adapted to the connecting block (281) is opened on the fixing groove (282). The connecting block (281) and the fixing groove (282) are slidably engaged. A pair of limiting grooves (283) are fixedly installed on the inner wall of each fixing groove (282). A limiting block (284) is slidably installed inside each limiting groove (283). A spring (285) is fixedly connected between the inner bottom of each limiting groove (283) and the limiting block (284). Two sets of fixing rods (2862) are fixedly installed at the bottom of each fixing block (2861). A pull block (2863) is fixedly installed at the end of each fixing rod (2862). A pair of springs (2864) are fixedly installed at the bottom of each of the two springs (2864). A movable plate (2865) is fixedly installed at the bottom of the movable plate (2865). A spring (28610) is fixedly installed at the bottom of the movable plate (2865). A pressure block (2869) is fixedly installed at the other end of the spring (28610). A connecting rod (2866) is rotatably installed at both ends of the movable plate (2865) through a movable shaft. A locking block (2867) is fixedly installed at the top of each connecting rod (2866). A pair of hinges (2868) are fixedly installed on the upper surface of the pressure block (2869). The bottom of each connecting rod (2866) is rotatably connected to the hinge (2868). The top of the locking block (2867) is arc-shaped. The connecting rod (2866) is "L"-shaped. The left and right ends of the connecting block (281) are provided with grooves, and the top of the groove is inclined.

2. The overflow filtration device for biological laboratories according to claim 1, characterized in that: A filter plate (22) is fixedly installed inside the protective shell (21) on the side near the cleaning channel (23). The bottoms of the first filter (26) and the second filter (27) are interlocked with the tops of the corresponding connecting blocks (281).

3. The overflow filtration device for biological laboratories according to claim 1, characterized in that: The first filter (26) is a HEPA high-efficiency particulate air filter, and the second filter (27) is a ULPA ultra-high-efficiency particulate air filter.

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