A closed sterilizing filtration isolation negative pressure device

Abstract

The utility model discloses a closed sterilizing filtration isolation negative pressure device, comprising a shell body 1 and an air inlet pipe, a bent rod is fixed in the shell body 1, and the end of the bent rod is rotatably connected to a disc that is slidably connected to the inside of the shell body 1, a plurality of circular sleeves are fixedly connected to the disc, and an opening connected to the inside of the circular sleeve is opened on the disc, a filter element is arranged in the circular sleeve, and the shell body 1 is fixed to the shell body 2 by bolts. In the utility model, a plurality of filter elements are installed on the disc installed in the shell body 1, so when the used filter element reaches the end of its service life, the disc can be rotated under the action of a motor, so that the unused filter element cooperates with the air inlet pipe and the air outlet pipe to filter the gas, and the staff does not need to replace the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a closed sterilizing filtration isolation negative pressure device. Background Art

[0002] As we all know, my country has very high requirements for exhaust air inside and outside the laboratory. Because the special environment of the laboratory requires that the laboratory must be able to exhaust the toxic and harmful gases produced by the experiment without causing harm to the external environment and human health. Therefore, the construction of airtight and isolated exhaust treatment devices is particularly important.

[0003] The treatment of laboratory exhaust air is an indispensable part of the design and construction of biological laboratories. For the health and safety of the experimental population, the laboratory should have good ventilation, which can prevent gases, particles, and some accompanying pollutants that are harmful to human health through filtering and exhaust devices. However, so far, the replacement of the filter device in the domestic filtering and exhaust device is mainly done manually, and because the pathogenic microorganisms in the exhaust air inside and outside the laboratory are mainly filtered in the device, when the filter device is replaced manually: the traditional filtering facilities run for a long time, which is prone to leakage and energy waste; the operator will have direct contact with the filter when replacing it, which is easy to cause infection to the operator and endanger the life safety of the operator.

[0004] Therefore, a device capable of replacing the filter screen in a safer manner is needed to avoid the above-mentioned problems. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems and to propose a closed sterilizing filtration isolation negative pressure device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A closed sterilizing filtration isolation negative pressure device comprises a shell one and an air inlet pipe, a bent rod is fixed inside the shell one, and the end of the bent rod is rotatably connected to a disc slidably connected to the inside of the shell one, a plurality of circular sleeves are fixedly connected to the disc, and the disc is provided with an opening connected to the inside of the circular sleeve, a filter element is arranged in the circular sleeve, the shell one is fixed to the shell two by bolts, an air outlet pipe is installed on the shell two, the disc is driven to rotate by an adjusting member so that the air outlet pipe is aligned with different filter elements, and the air outlet pipe is fitted with the filter element under the action of the fitting member.

[0008] Preferably, the adjusting member comprises a polygonal groove formed on a disc, a fixing block 1 is fixed on the shell 2, a motor is mounted on the fixing block 1, and a polygonal block matching the polygonal groove is fixed on the end of the motor.

[0009] Preferably, the matching component includes a second fixing block fixed in the second housing, and an electric push rod is fixed on the second fixing block, and a hose is fixed to the end of the air outlet pipe, and the hose is fixed to the electric push rod.

[0010] Preferably, the electric push rod pushes the end of the hose into the round sleeve to abut against the filter element, and seals the inside of the round sleeve.

[0011] Preferably, a sealing ring protrudes from the portion where the end of the air inlet pipe abuts against the surface of the disc.

[0012] Preferably, pressure detectors are installed inside the shell one and the shell two to determine whether the shell one and the shell two are sealed.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. In the present application, a plurality of filter elements are installed on a disc installed in a housing. Therefore, when the used filter element reaches the end of its life, the disc can be rotated under the action of a motor, causing the unused filter element to cooperate with the air inlet pipe and the air outlet pipe to filter the gas, and the staff does not need to replace the filter element.

[0015] 2. In the present application, only after all the filter elements on the disc have been used, the shell 2 needs to be removed to replace the filter element in the shell 1. The filter element replacement cycle is greatly extended. Therefore, the staff can replace the filter element when the device is not working, which effectively reduces the workload, reduces the frequency of filter element replacement, and is relatively safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structural diagram of the filtering and isolating device provided according to the embodiment of the utility model is shown;

[0017] Figure 2 A schematic diagram of the internal structure of the housing 1 and the housing 2 provided according to an embodiment of the utility model is shown;

[0018] Figure 3 A schematic diagram of the structure of a filter element according to an embodiment of the utility model is shown.

[0019] Legend:

[0020] 1. Shell 1; 2. Inlet pipe; 3. Bent rod; 4. Disc; 5. Round sleeve; 6. Opening; 7. Filter element; 8. Polygonal groove; 9. Shell 2; 10. Fixed block 1; 11. Motor; 12. Polygonal block; 13. Fixed block 2; 14. Electric push rod; 15. Hose; 16. Exhaust pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1:

[0023] The utility model provides a technical solution, please refer to Figure 1-3 :

[0024] A closed sterilizing filtration isolation negative pressure device comprises a housing 1 and an air inlet pipe 2. A bent rod 3 is fixed in the housing 1, and the end of the bent rod 3 is rotatably connected to a disc 4 that is slidably connected to the inside of the housing 1. A sealing ring is protruded from the part where the end of the air inlet pipe 2 abuts against the surface of the disc 4. A plurality of circular sleeves 5 are fixedly connected to the disc 4, and an opening 6 connected to the inside of the circular sleeve 5 is opened on the disc 4. A filter element 7 is arranged in the circular sleeve 5. The housing 1 is fixed to the housing 2 9 by bolts. An air outlet pipe 16 is installed on the housing 2 9. The disc 4 is driven to rotate by an adjusting member so that the air outlet pipe 16 is aligned with different filter elements 7, and the air outlet pipe 16 is fitted with the filter element 7 under the action of a matching member. An air pressure detector is installed inside the housing 1 and the housing 2 9 to determine whether the housing 1 and the housing 2 9 are sealed. Once the positive and negative pressures of the air pressure deviate from the standard air pressure, an alarm is given, and under the action of the filter element 7, the effect of filtering and sterilization can be achieved.

[0025] Embodiment 2:

[0026] The technical solution is basically the same as that of the first embodiment, except that Figure 2 and Figure 3 As shown, the adjusting member includes a polygonal groove 8 opened on the disc 4, a fixing block 10 is fixed on the housing 2 9, a motor 11 is installed on the fixing block 10, and a polygonal block 12 adapted to the polygonal groove 8 is fixed at the end of the motor 11. After the housing 1 1 and the housing 2 9 are fixed by bolts, the polygonal block 12 at this time extends into the polygonal groove 8, and the motor 11 drives the polygonal block 12 to rotate, which can cause the disc 4 to rotate, causing the filter element 7 of the other circular sleeve 5 to rotate to align with the inlet pipe 2 and the outlet pipe 16.

[0027] Embodiment three:

[0028] The technical solution is basically the same as that of the first embodiment, except that Figure 2 and Figure 3As shown, the matching part includes a fixing block 13 fixed in the housing 9, and an electric push rod 14 is fixed on the fixing block 13, and a hose 15 is fixed to the end of the air outlet pipe 16, and the hose 15 is fixed to the electric push rod 14. The electric push rod 14 pushes the end of the hose 15 to extend into the round sleeve 5 and abut against the filter element 7, and the inside of the round sleeve 5 is blocked.

[0029] In summary, when the filter element 7 cannot play a normal filtering effect, the electric push rod 14 pushes the hose 15 to move until the hose 15 is separated from the round sleeve 5. The motor 11 drives the polygonal block 12 to rotate, causing the disc 4 to rotate together, until the other unused filter elements 7 move to align with the hose 15. At this time, the end of the air intake pipe 2 is also aligned with the opening 6 at this time, and the electric push rod 14 pushes the hose 15 to move until the hose 15 extends into the round sleeve 5, blocking the inside of the round sleeve 5. At this time, the gas in the air intake pipe 2 is filtered by the filter element 7 through the opening 6, and then discharged from the hose 15 and the air outlet pipe 16.

[0030] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be 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 present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A closed sterilizing filtration isolation negative pressure device, comprising a housing (1) and an air inlet pipe (2), characterized in that: A bent rod (3) is fixed inside the shell one (1), and the end of the bent rod (3) is rotatably connected to a disc (4) that is slidably connected to the inside of the shell one (1). A plurality of circular sleeves (5) are fixedly connected to the circular sleeve (4), and an opening (6) connected to the inside of the circular sleeve (5) is opened on the circular sleeve (5). A filter element (7) is arranged inside the circular sleeve (5). The shell one (1) is fixed to the shell two (9) by bolts, and an air outlet pipe (16) is installed on the shell two (9). The circular disc (4) is driven to rotate by an adjusting member so that the air outlet pipe (16) is aligned with different filter elements (7), and the air outlet pipe (16) is fitted with the filter element (7) under the action of a matching member.

2. A closed sterilizing filtration isolation negative pressure device according to claim 1, characterized in that: The adjusting member comprises a polygonal groove (8) formed on a disc (4); a fixing block (10) is fixed on the second housing (9); a motor (11) is mounted on the fixing block (10); and a polygonal block (12) adapted to the polygonal groove (8) is fixed at the end of the motor (11).

3. A closed sterilizing filtration isolation negative pressure device according to claim 1, characterized in that: The matching part comprises a second fixing block (13) fixed in the second housing (9), and an electric push rod (14) is fixed on the second fixing block (13); a hose (15) is fixed at the end of the air outlet pipe (16), and the hose (15) is fixed to the electric push rod (14).

4. A closed sterilizing filtration isolation negative pressure device according to claim 3, characterized in that: The electric push rod (14) pushes the end of the hose (15) into the round sleeve (5) to abut against the filter element (7), and blocks the inside of the round sleeve (5).

5. A closed sterilizing filtration isolation negative pressure device according to claim 1, characterized in that: A sealing ring protrudes from the portion where the end of the air inlet pipe (2) contacts the surface of the disc (4).

6. A closed sterilizing filtration isolation negative pressure device according to claim 1, characterized in that: Air pressure detectors are installed inside the shell one (1) and the shell two (9) to determine whether the shell one (1) and the shell two (9) are sealed.

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