Laboratory cage frame air exhaust device

Abstract

The embodiment of the utility model provides an exhaust device for a laboratory cage frame tool, and relates to the technical field of biosafety laboratories. The air exhaust device for the laboratory cage frame comprises a high-efficiency box body and a diffuser plate box body. Wherein a first exhaust outlet is formed in the top of the efficient box body, and the first exhaust outlet is communicated with an inner cavity of the efficient box body. The diffuser plate box body is communicated with the bottom of the efficient box body, a hole plate is arranged at the bottom of the diffuser plate box body, and a plurality of second exhaust outlets are formed in the hole plate. A plurality of cage frame tool connectors are arranged on the diffuser plate box body and are used for being connected with cage frame tools. The air exhaust device of the laboratory cage frame is simple in structure and low in cost, can avoid pressure difference fluctuation in a laboratory room when the cage frame is started, cannot increase control variables of an air conditioning system, reduces requirements of an air conditioning automatic control system, and enables the system to operate more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of biosafety laboratories, in particular to an exhaust device for a laboratory cage. Background Art

[0002] The exhaust device of the usual cage rack is composed of a hose, a stainless steel pipe, and a butterfly valve. With the development of laboratories, the number of cage racks in the laboratory continues to increase, and this exhaust method is no longer suitable for laboratories with multiple cage racks. Specifically, this exhaust method will cause frequent pressure fluctuations in the laboratory room during the use of the cage rack, increase the variables of the control system, and is not conducive to the stable operation of the air conditioning automatic control system. Utility Model Content

[0003] The utility model aims to provide a laboratory cage exhaust device, which can avoid pressure difference fluctuations in the laboratory room when the cage is activated, will not increase the control variables of the air conditioning system, reduce the requirements of the air conditioning automatic control system, and make the system run more stably.

[0004] The embodiment of the utility model is achieved as follows:

[0005] In a first aspect, the utility model provides a laboratory cage exhaust device, comprising:

[0006] A high-efficiency box, wherein a first air outlet is disposed on the top of the high-efficiency box, and the first air outlet is communicated with the internal cavity of the high-efficiency box; and

[0007] A diffuser box body, wherein the diffuser box body is connected to the bottom of the high-efficiency box body, a perforated plate is provided at the bottom of the diffuser box body, and a plurality of second air outlets are provided on the perforated plate;

[0008] The diffuser box body is provided with a plurality of cage interfaces, and the cage interfaces are used to be connected with the cage.

[0009] Furthermore, in an optional embodiment, a guide plate is also included;

[0010] The guide plate is arranged in the diffuser box body and connected to the cage interface, and is used for guiding the exhaust air entering the cage interface from the cage to the high-efficiency box body.

[0011] Further, in an optional embodiment, the bottom of the guide plate is in an arc-shaped structure that bends toward the high-efficiency box.

[0012] Further, in an optional embodiment, the diffuser box has a plurality of peripheral walls connected end to end in sequence, and the plurality of peripheral walls are connected between the high-efficiency box and the orifice plate;

[0013] At least one cage interface is disposed on each of the two outer peripheral walls disposed opposite to each other; or,

[0014] At least one cage interface is arranged on each of the outer peripheral walls.

[0015] Further, in an optional embodiment, a first mounting plate is provided on the inner wall of the high-efficiency box body, a second mounting plate is provided on the top of the diffuser plate box body, the second mounting plate is provided with a connecting portion protruding from the outer peripheral wall of the diffuser plate box body, and the first mounting plate is detachably connected to the connecting portion.

[0016] Furthermore, in an optional embodiment, a fixing screw is also included;

[0017] The first mounting plate and the connecting portion are detachably connected via the fixing screws.

[0018] Furthermore, in an optional embodiment, a plurality of lifting ears are provided on the top of the high-efficiency box.

[0019] Furthermore, in an optional embodiment, a flange interface is also included;

[0020] The flange interface is arranged at the first air outlet.

[0021] Furthermore, in an optional embodiment, the orifice plate and the plurality of cage interfaces are fully welded to the diffuser box body.

[0022] Further, in an optional embodiment, a plurality of the second air outlets are arranged in a plurality of rows, and the second air outlets in any two adjacent rows are staggered.

[0023] The beneficial effects of the laboratory cage exhaust device provided by the embodiment of the utility model include:

[0024] The laboratory cage exhaust device provided by the embodiment of the utility model is in operation. When the cage is not activated, air is taken from the orifice plate at the bottom of the diffuser box, that is, the exhaust air of the laboratory enters the diffuser box through the second exhaust port, and is discharged from the first exhaust port through the high-efficiency box; when the cage is activated, the exhaust air of the cage enters the diffuser box through the cage interface, and is discharged from the first exhaust port through the high-efficiency box. At this time, the second exhaust port can still exhaust the laboratory. The laboratory cage exhaust device has a set exhaust volume. If the cage exhaust volume increases, the exhaust volume in the laboratory decreases; if the cage exhaust volume decreases, the exhaust volume in the laboratory increases. In this way, compared with the air conditioning automatic control system, there is no direct external discharge, and when the cage is activated, it will not cause pressure difference fluctuations in the laboratory room, will not increase the control variables of the air conditioning system, reduce the requirements of the air conditioning automatic control system, and make the system run more stable. Therefore, the laboratory cage exhaust device has a simple structure, the number and activation status of the cages do not affect the room pressure difference of the laboratory, and the air conditioning control system operates more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic diagram of the front view of the structure of the laboratory cage exhaust device provided by the embodiment of the utility model;

[0027] Figure 2 A side view schematic diagram of the laboratory cage exhaust device provided by an embodiment of the utility model;

[0028] Figure 3 A bottom view of the structure of a laboratory cage with an exhaust device provided by an embodiment of the utility model;

[0029] Figure 4 for Figure 1 A schematic diagram of the local enlarged structure at IV in the middle;

[0030] Figure 5 A schematic diagram of the structure of a perforated plate of an exhaust device for a laboratory cage provided in an embodiment of the utility model.

[0031] icon:

[0032] 10-Laboratory cage with exhaust device;

[0033] 100-high-efficiency box; 110-first air outlet; 120-hanging ear; 130-first mounting plate;

[0034] 200- diffuser box; 210- orifice plate; 211- second air outlet; 220- cage interface; 230- outer peripheral wall; 240- second mounting plate; 241- connecting portion;

[0035] 300-flange interface;

[0036] 400- deflector;

[0037] 500-Fixing screw. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] As described in the background technology: the exhaust device of the usual cage rack is composed of a hose, a stainless steel pipe, and a butterfly valve. With the development of laboratories, the number of cage racks in the laboratory continues to increase, and this exhaust method is no longer suitable for laboratories with multiple cage racks. Specifically, this exhaust method will cause frequent pressure fluctuations in the laboratory room during the use of the cage rack, increase the variables of the control system, and is not conducive to the stable operation of the air conditioning automatic control system.

[0045] The designer of the utility model found in the research that the reason for the above technical problems is that the common cage rack exhaust method is to pass through the ceiling to connect to a separate exhaust pipeline in the form of PVC hose, stainless steel pipe and butterfly valve, and the butterfly valve is opened when the cage rack is in use and closed when not in use. This will not only cause the pressure difference in the laboratory to fluctuate frequently during the use of the cage rack, increase the variables of the control system, which is not conducive to the stable operation of the air conditioning automatic control system, but also increase the investment cost.

[0046] Therefore, the utility model provides a laboratory cage exhaust device, which can eliminate the butterfly valve and the separate exhaust duct passing through the ceiling, and replaces it with a laboratory cage exhaust device connected to the laboratory room, thereby effectively solving the above-mentioned technical problems, so that the number and activation status of the cages do not affect the pressure difference of the laboratory room, and the air conditioning control system operates more stably.

[0047] The laboratory cage exhaust device provided by the utility model can be applied to a high-level biosafety laboratory to exhaust the cage, and can also exhaust the laboratory room when the cage is not activated.

[0048] See also Figure 1 to Figure 3The laboratory cage exhaust device 10 includes a high-efficiency box 100 and a diffuser box 200. A first exhaust port 110 is provided at the top of the high-efficiency box 100, and the first exhaust port 110 is communicated with the internal cavity of the high-efficiency box 100. The diffuser box 200 is communicated with the bottom of the high-efficiency box 100, and a perforated plate 210 is provided at the bottom of the diffuser box 200, and a plurality of second exhaust ports 211 are provided on the perforated plate 210. A plurality of cage interfaces 220 are provided on the diffuser box 200, and the cage interfaces 220 are used to connect with the cage.

[0049] It should be noted that the first exhaust port 110 is used to communicate with the exhaust duct to exhaust the exhaust air passing through the high-efficiency box 100. In addition, the number of cage interfaces 220 is based on the number of cages in the laboratory room, that is, the number of cage interfaces 220 is the same as the number of cages, and multiple cage interfaces 220 are connected to multiple cages in a one-to-one correspondence.

[0050] When the laboratory cage exhaust device 10 is working, when the cage is not enabled, air is taken from the orifice plate 210 at the bottom of the diffuser box 200, that is, the exhaust air of the laboratory enters the diffuser box 200 through the second exhaust port 211, and is discharged from the first exhaust port 110 through the high-efficiency box 100; when the cage is enabled, the exhaust air of the cage enters the diffuser box 200 through the cage interface 220, and is discharged from the first exhaust port 110 through the high-efficiency box 100, at which time the second exhaust port 211 can still exhaust the laboratory. The laboratory cage exhaust device 10 has a set exhaust volume. If the cage exhaust volume increases, the exhaust volume in the laboratory decreases. It should be understood that the insufficient part of the set exhaust volume is discharged by the orifice plate 210 to ensure the room pressure difference; if the cage exhaust volume decreases, the exhaust volume in the laboratory increases. In this way, compared with the air conditioning automatic control system, there is no direct external discharge, and when the cage rack is activated, it will not cause pressure difference fluctuations in the laboratory room, will not increase the control variables of the air conditioning system, and reduce the requirements of the air conditioning automatic control system, making the system run more stably. Therefore, the laboratory cage rack exhaust device 10 has a simple structure, the number and activation status of the cage racks do not affect the room pressure difference of the laboratory, and the air conditioning control system runs more stably.

[0051] In an optional embodiment, the high-efficiency box 100 is substantially a rectangular box shell structure, has a certain depth in the height direction, and has a first air outlet 110 disposed on the top. In some optional embodiments, an air purification device may be disposed in the internal cavity of the high-efficiency box 100.

[0052] In addition, a plurality of hanging ears 120 are provided on the top of the high-efficiency box 100, and the plurality of hanging ears 120 are used to connect with the suspended ceiling. This facilitates the installation of the laboratory cage exhaust device 10. The hanging ears 120 are generally plate-shaped structures with an L-shaped cross section, one side of the L-shape is fully welded to the top of the high-efficiency box 100, and the other side is used to connect with the suspended ceiling.

[0053] In an optional embodiment, the laboratory cage exhaust device 10 may further include a flange interface 300. The flange interface 300 is disposed at the first exhaust port 110, and the flange interface 300 is used to connect the exhaust duct so as to discharge the exhaust air flowing through the high-efficiency box 100. By providing the flange interface 300, it is convenient to connect with the exhaust duct and facilitate disassembly and assembly. Optionally, the flange interface 300 is fully welded to the top of the high-efficiency box 100 to make the connection more secure.

[0054] In an optional embodiment, the laboratory cage exhaust device 10 may further include a guide plate 400. The guide plate 400 is disposed in the diffuser box 200 and connected to the cage interface 220 to guide the exhaust air entering the cage interface 220 from the cage to the high-efficiency box 100.

[0055] When the cage is activated, the exhaust air of the cage passes through the cage interface 220, enters the diffuser box 200, and flows through the guide plate 400. Under the guiding effect of the guide plate 400, the exhaust air is guided to the high-efficiency box 100 and then discharged from the first exhaust port 110. In this way, the guide plate 400 can play an effective guiding role and improve the exhaust effect.

[0056] Optionally, the bottom of the guide plate 400 is in an arc-shaped structure that bends toward the high-efficiency box 100. By setting the bottom of the guide plate 400 to be an arc-shaped structure and bending toward the high-efficiency box 100, the exhaust air can be better guided to the high-efficiency box 100.

[0057] In an optional embodiment, the diffuser box 200 has a plurality of peripheral walls 230 connected end to end in sequence, and the plurality of peripheral walls 230 are connected between the high-efficiency box 100 and the orifice plate 210. At least one cage interface 220 is provided on each of the two peripheral walls 230 disposed opposite to each other; or at least one cage interface 220 is provided on each of the peripheral walls 230.

[0058] It should be noted that, in the present embodiment, the diffuser box 200 is roughly a rectangular box shell structure, and the number of the peripheral walls 230 can be selected to be four, and the four peripheral walls 230 are sequentially connected end to end to form a rectangle, and the four peripheral walls 230 are connected between the high-efficiency box 100 and the orifice plate 210. In some embodiments, at least one cage interface 220 may be provided on two peripheral walls 230 that are arranged opposite to each other, for example, two cage interfaces 220 may be provided on two peripheral walls 230 that are arranged opposite to each other, so as to connect the cage. In other optional embodiments, at least one cage interface 220 may be provided on each peripheral wall 230, for example, at least one cage interface 220 may be provided on four peripheral walls 230. As long as the number of cage interfaces 220 can be set accordingly according to the number of cages, and it is easy to install.

[0059] See also Figure 4 In an optional embodiment, a first mounting plate 130 is provided on the inner wall of the high-efficiency box 100, a second mounting plate 240 is provided on the top of the diffuser box 200, and the second mounting plate 240 is provided with a connecting portion 241 protruding from the outer peripheral wall 230 of the diffuser box 200, and the first mounting plate 130 and the connecting portion 241 are detachably connected.

[0060] By providing the first mounting plate 130 and the connecting portion 241 , it is convenient to assemble and disassemble the high-efficiency box body 100 and the diffuser plate box body 200 .

[0061] In order to facilitate the detachable connection between the first mounting plate 130 and the connecting portion 241, in this embodiment, the laboratory cage exhaust device 10 may further include a fixing screw 500. The first mounting plate 130 and the connecting portion 241 are detachably connected via the fixing screw 500.

[0062] Please continue reading Figure 1 to Figure 3 In addition, in an optional embodiment, the orifice plate 210 and the plurality of cage interfaces 220 are all fully welded to the diffuser box 200. In this way, the connection between the orifice plate 210 and the diffuser box 200 and between the cage interfaces 220 and the diffuser box 200 is more reliable.

[0063] See also Figure 5 In addition, in an optional embodiment, the plurality of second air outlets 211 are arranged in multiple rows, and any two adjacent rows of second air outlets 211 are staggered. In this way, the orifice plate 210 can be provided with more second air outlets 211 to improve the exhaust effect.

[0064] In summary, the laboratory cage exhaust device 10 provided by the embodiment of the utility model has the following technical effects: when the cage is not enabled, air is taken from the orifice plate 210 at the bottom of the diffuser box 200, that is, the exhaust air of the laboratory enters the diffuser box 200 through the second exhaust port 211, and is discharged from the first exhaust port 110 through the high-efficiency box 100; when the cage is enabled, the exhaust air of the cage enters the diffuser box 200 through the cage interface 220, and is discharged from the first exhaust port 110 through the high-efficiency box 100, at which time the second exhaust port 211 can still exhaust the laboratory. The laboratory cage exhaust device 10 has a set exhaust volume. If the cage exhaust volume increases, the exhaust volume in the laboratory decreases; if the cage exhaust volume decreases, the exhaust volume in the laboratory increases. Compared with the air conditioning automatic control system, there is no direct external discharge, and when the cage is activated, it will not cause pressure difference fluctuations in the laboratory room, will not increase the control variables of the air conditioning system, and reduce the requirements of the air conditioning automatic control system, making the system run more stably. The laboratory cage exhaust device 10 has a simple structure and low cost. The number and activation status of the cage do not affect the room pressure difference of the laboratory, and the air conditioning control system runs more stably.

[0065] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A laboratory cage exhaust device, characterized in that: include: A high-efficiency box (100), wherein a first air outlet (110) is provided at the top of the high-efficiency box (100), and the first air outlet (110) is communicated with an internal cavity of the high-efficiency box (100); and, A diffuser box (200), the diffuser box (200) being in communication with the bottom of the high-efficiency box (100), a perforated plate (210) being provided at the bottom of the diffuser box (200), and a plurality of second air outlets (211) being provided on the perforated plate (210); A plurality of cage tool interfaces (220) are arranged on the diffuser box body (200), and the cage tool interfaces (220) are used to be connected to the cage tool.

2. The laboratory cage exhaust device according to claim 1, characterized in that: Also includes a guide plate (400); The guide plate (400) is arranged in the diffuser box (200) and connected to the cage interface (220) to guide the exhaust air entering the cage interface (220) from the cage to the high-efficiency box (100).

3. The laboratory cage exhaust device according to claim 2, characterized in that: The bottom of the guide plate (400) is in an arc-shaped structure that bends toward the high-efficiency box (100).

4. The laboratory cage exhaust device according to claim 1, characterized in that: The diffuser box (200) has a plurality of peripheral walls (230) connected end to end in sequence, and the plurality of peripheral walls (230) are connected between the high-efficiency box (100) and the orifice plate (210); At least one cage interface (220) is disposed on each of the two outer peripheral walls (230) disposed opposite to each other; or, At least one cage interface (220) is provided on each of the outer peripheral walls (230).

5. The laboratory cage exhaust device according to claim 1, characterized in that: The inner wall of the high-efficiency box (100) is provided with a first mounting plate (130), the top of the diffuser box (200) is provided with a second mounting plate (240), the second mounting plate (240) is provided with a connecting portion (241) protruding from the outer peripheral wall (230) of the diffuser box (200), and the first mounting plate (130) and the connecting portion (241) are detachably connected.

6. The laboratory cage exhaust device according to claim 5, characterized in that: Also includes a fixing screw (500); The first mounting plate (130) and the connecting portion (241) are detachably connected via the fixing screws (500).

7. The laboratory cage exhaust device according to claim 1, characterized in that: A plurality of lifting ears (120) are arranged on the top of the high-efficiency box (100).

8. The laboratory cage exhaust device according to claim 1, characterized in that: Also includes a flange interface (300); The flange interface (300) is arranged at the first air outlet (110).

9. The laboratory cage exhaust device according to claim 1, characterized in that: The orifice plate (210) and the plurality of cage interfaces (220) are fully welded to the diffuser box body (200).

10. The laboratory cage exhaust device according to claim 1, characterized in that: The plurality of second air outlets (211) are arranged in a plurality of rows, and the second air outlets (211) in any two adjacent rows are staggered.

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