Double-layer laboratory mouse sterile feeding isolator

Abstract

The utility model provides a double-layer laboratory mouse sterile feeding isolator which comprises an installation support, a first feeding space, a second feeding space, a second feeding space, a first connecting piece, a second connecting piece and a third connecting piece, wherein the installation support is provided with the first feeding space and the second feeding space; the exhaust device is connected with the first feeding space and the second feeding space, and an exhaust outlet of the exhaust device is formed in the side close to the bottom end of the mounting support; the air inlet device is connected with the first feeding space and the second feeding space, and an air inlet of the air inlet device is formed in the side close to the top end of the mounting support; the first storage device is connected with the first feeding space, and the first storage device and the exhaust device are arranged on the same side; the second storage device is connected with the second feeding space, and the second storage device and the exhaust device are arranged on the same side. According to the embodiment of the utility model, the actual utilization rate of the laboratory mouse sterile feeding isolator is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of animal experimental instruments, in particular to a double-layer aseptic feeding isolator for experimental mice. Background Art

[0002] In the field of animal experiments, mice are commonly used as experimental animals. Because mice have great similarities with humans in terms of physiological indicators and physiological structures, and mice are also easy to obtain. Therefore, using mice as experimental tools has become a consensus in the analysis industry.

[0003] However, in actual use, there is at least one of the following problems: when the space in the laboratory is relatively tight, and due to the problem of layout position, the existing laboratory mouse sterile breeding isolator occupies a large area and has a low actual utilization rate. Utility Model Content

[0004] Therefore, the embodiment of the utility model provides a double-layered laboratory mouse aseptic feeding isolator, which improves the actual utilization rate of the laboratory mouse aseptic feeding isolator.

[0005] In order to solve the above problems, the utility model provides a double-layered aseptic feeding isolator for experimental mice, which comprises: a mounting bracket, on which a first feeding space and a second feeding space are arranged; an exhaust device, which is respectively connected to the first feeding space and the second feeding space, and the exhaust outlet of the exhaust device is arranged on a side close to the bottom end of the mounting bracket; an air intake device, which is respectively connected to the first feeding space and the second feeding space, and the air intake inlet of the air intake device is arranged on a side close to the top end of the mounting bracket; a first storage device, which is connected to the first feeding space, and the first storage device and the exhaust device are arranged on the same side; a second storage device, which is connected to the second feeding space, and the second storage device and the exhaust device are arranged on the same side.

[0006] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by arranging the first breeding space and the second breeding space on the mounting bracket, the sterile breeding isolator for experimental mice is divided into two layers in a limited space, and sterile mice with different needs can be raised in different layers, and the two-layer arrangement is also convenient for experimenters to operate; on the other hand, by arranging the air intake device and the storage device on the same side, it is convenient to place the storage and air intake side on the side that is convenient for operation.

[0007] In one example of the utility model, the double-layer experimental mouse sterile feeding isolator also includes: a plurality of operating devices, which are arranged in sequence on the first storage device and the second storage device; wherein the plurality of operating devices are arranged in sequence at intervals along the length direction of the first storage device and the second storage device.

[0008] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by arranging multiple operating devices to be arranged in sequence and spaced apart along the length direction of the first storage device and the second storage device, it is convenient for experimenters to adjust the objects and sterile mice in the first storage device and the second storage device through the operating devices.

[0009] In an example of the present invention, the operating device is a flexible member, and when the operating device is fully extended, the length of the operating device is greater than the width of the mounting bracket.

[0010] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the operating device is a flexible part, and the length of the operating device is greater than the width of the mounting bracket, so that the experimenter can comprehensively control and adjust the experimental mouse sterile breeding isolator through the operating device.

[0011] In one example of the utility model, the exhaust device includes: an exhaust manifold, the exhaust manifold is provided with a first opening, a second opening and a third opening; a first exhaust pipe, the first exhaust pipe is connected to a first storage device; a first filter assembly, the first filter assembly is connected to the first exhaust pipe, and the other end thereof is connected to the second opening; a second exhaust pipe, the second exhaust pipe is connected to the second storage device; a second filter assembly, the second filter assembly is connected to the second exhaust pipe, and the other end thereof is connected to the third opening.

[0012] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: by setting an exhaust main pipe to connect the first exhaust duct and the second exhaust duct respectively, the exhaust gas of the first storage device and the second storage device can be discharged through an exhaust port, which is convenient for collection and treatment; on the other hand, by setting the first filter component and the second filter component for the first storage device and the second storage device respectively, different filter elements can be set according to different situations of the first storage device and the second storage device to improve practicality.

[0013] In one example of the utility model, the connection between the first filter assembly and the second opening is a detachable connection; and / or, the connection between the first filter assembly and the first exhaust duct is a detachable connection; and / or, the connection between the second filter assembly and the third opening is a detachable connection; and / or, the connection between the second filter assembly and the second exhaust duct is a detachable connection.

[0014] Compared with the prior art, the technical effect achieved by adopting this technical solution is: by making the connection between the first filter component and the second opening a detachable connection; and / or, the connection between the first filter component and the first exhaust duct a detachable connection; and / or, the connection between the second filter component and the third opening a detachable connection; and / or, the connection between the second filter component and the second exhaust duct a detachable connection, thereby facilitating the replacement of the filter component.

[0015] In one example of the utility model, the air intake device includes: an air intake manifold, the air intake manifold is provided with a first air intake port, a second air intake port and a third air intake port; a first air intake pipe, the first air intake pipe is connected to a first storage device; a third filter assembly, the third filter assembly is connected to the first air intake pipe, and the other end thereof is connected to a second opening; a second air intake pipe, the second air intake pipe is connected to a second storage device; and a fourth filter assembly, the fourth filter assembly is connected to the second air intake pipe, and the other end thereof is connected to a third opening.

[0016] Compared with the prior art, the technical effects achieved by adopting this technical solution are as follows: by setting an air intake main pipe to connect the first air intake duct and the second air intake duct respectively, the air intake of the first storage device and the second storage device can enter and exit through one air inlet, which is convenient for unified air intake; on the other hand, by setting a third filter component and a fourth filter component for the first storage device and the second storage device respectively, different filter elements can be set according to different situations of the first storage device and the second storage device to improve practicality.

[0017] In one example of the utility model, the connection between the third filter assembly and the second opening is a detachable connection; and / or, the connection between the third filter assembly and the first air intake duct is a detachable connection; and / or, the connection between the fourth filter assembly and the third opening is a detachable connection; and / or, the connection between the fourth filter assembly and the second air intake duct is a detachable connection.

[0018] Compared with the prior art, the technical effect achieved by adopting this technical solution is: by making the connection between the third filter component and the second opening a detachable connection; and / or, the connection between the third filter component and the first air intake duct a detachable connection; and / or, the connection between the fourth filter component and the third opening a detachable connection; and / or, the connection between the fourth filter component and the second air intake duct a detachable connection, thereby facilitating the replacement of the filter component.

[0019] In one example of the utility model, the double-layer experimental mouse sterile feeding isolator also includes: a plurality of fixed baffles, which are sequentially arranged in the first feeding space and the second feeding space; a first mounting bracket, which is arranged between the plurality of fixed baffles; a second mounting bracket, which is arranged between the plurality of fixed baffles; wherein the second mounting bracket and the first mounting bracket are arranged on different horizontal planes.

[0020] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: the first feeding space and the second feeding space are separated by setting a plurality of fixed baffles, and the plurality of fixed baffles are not set on the same horizontal plane, thereby facilitating the placement of the sterile feeding isolator for experimental mice. At the same time, no fixing device is set at the upper end, which is also convenient for the operation of the experimenter.

[0021] In one example of the utility model, the first storage device and the second storage device have the same structure, and both include: a storage cavity, the storage cavity is provided with a first storage opening and a second storage opening; a first opening and closing device, the first opening and closing device is arranged at the first storage opening; a second opening and closing device, the second opening and closing device is arranged at the second storage opening; wherein, when the first opening and closing device and the second opening and closing device are closed, the storage cavity is a closed space.

[0022] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by setting the first opening and closing device and the second opening and closing device, it is convenient for the experimenter to put the required experimental items into the corresponding breeding space. For example, when the experimenter needs to put the experimental items into the breeding space, the first storage opening can be opened first, and then the experimental items are put into the storage cavity and the first storage opening is closed. At this time, the storage cavity is a closed space. Then the second opening and closing device is opened, and the experimenter puts the experimental items into the breeding space through the operating device, thereby preventing the breeding space from being disturbed by the external environment, which may cause deviations in the experimental results.

[0023] In one example of the utility model, the second opening and closing device includes: an opening and closing door; a hook, which is arranged on a side of the storage cavity close to the opening and closing door; a fixing member, which is arranged on a side of the opening and closing door away from the storage cavity, and a waist-shaped hole is provided on the fixing member; a connecting rod, which passes through the waist-shaped hole, and when the opening and closing door is closed, the connecting rod is arranged on the hook; a rotating member, which is sleeved on the connecting rod, and the rotating member and the connecting rod are eccentrically arranged.

[0024] Compared with the prior art, the technical effect achieved by adopting this technical solution is as follows: by setting the second opening and closing device as a rotating member and the connecting rod as an eccentric setting, the second opening and closing device can be opened and closed by turning the rotating member, thereby facilitating the operation of the experimenter.

[0025] After adopting the technical solution of the utility model, the following technical effects can be achieved:

[0026] (1) By arranging the first feeding space and the second feeding space on the mounting bracket, the experimental mouse sterile feeding isolator is divided into two layers in a limited space, and sterile mice with different requirements can be raised in different layers, and the two-layer arrangement is also convenient for experimental personnel to operate; on the other hand, by arranging the air intake device and the storage device on the same side, it is convenient to place the storage and air intake side on the side that is convenient for operation;

[0027] (2) By arranging the plurality of operating devices to be arranged in sequence and spaced apart along the length direction of the first storage device and the second storage device, it is convenient for the experimenter to adjust the objects and the sterile mice in the first storage device and the second storage device through the operating devices;

[0028] (3) By configuring the second opening and closing device as a rotating member and the connecting rod to be eccentrically configured, the second opening and closing device can be opened and closed by turning the rotating member, thereby facilitating the operation of the experimenter. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is one of the structural schematic diagrams of a double-layer laboratory mouse sterile feeding isolator provided in an embodiment of the utility model.

[0031] Figure 2 The present invention is a second schematic diagram of a double-layer sterile feeding isolator for experimental mice provided in an embodiment of the present invention.

[0032] Figure 3 The third structural schematic diagram of a double-layer laboratory mouse sterile feeding isolator provided in an embodiment of the utility model.

[0033] Figure 4 This is one of the structural schematic diagrams of the first storage device.

[0034] Figure 5 This is the second structural schematic diagram of the first storage device.

[0035] Figure 6 It is a schematic diagram of the structure of the connecting rod and the rotating part.

[0036] Figure 7 The fourth structural schematic diagram of a double-layer laboratory mouse sterile feeding isolator provided in an embodiment of the utility model.

[0037] Description of reference numerals:

[0038] 100 is a double-layered sterile feeding isolator for experimental mice; 110 is a mounting bracket; 111 is a first feeding space; 112 is a second feeding space; 120 is an exhaust device; 130 is an air intake device; 140 is a first storage device; 141 is a first opening and closing device; 142 is an opening and closing door; 143 is a hook; 144 is a fixing member; 145 is a connecting rod; 146 is a rotating member; 150 is a second storage device; 160 is an operating device; 171 is a fixed baffle; 172 is a first mounting bracket; 173 is a second mounting bracket. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the technical solutions in the embodiments of the utility model are described clearly and completely. 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.

[0040] See also Figure 1 , which is one of the structural schematic diagrams of a double-layer laboratory mouse aseptic feeding isolator 100 provided by an embodiment of the utility model. The double-layer laboratory mouse aseptic feeding isolator 100 includes: a mounting bracket 110, on which a first feeding space 111 and a second feeding space 112 are provided; an exhaust device 120, the exhaust device 120 is connected to the first feeding space 111 and the second feeding space 112 respectively, and the exhaust outlet of the exhaust device 120 is arranged on a side close to the bottom end of the mounting bracket 110; an air intake device 130, the air intake device 130 is connected to the first feeding space 111 and the second feeding space 112 respectively, and the air intake inlet of the air intake device 130 is arranged on a side close to the top end of the mounting bracket 110; a first storage device 140, the first storage device 140 is connected to the first feeding space 111, and the first storage device 140 and the exhaust device 120 are arranged on the same side; a second storage device 150, the second storage device is connected to the second feeding space 112, and the second storage device 150 and the exhaust device 120 are arranged on the same side.

[0041] For example, by arranging the first breeding space 111 and the second breeding space 112 on the mounting bracket 110, the experimental mouse sterile breeding isolator is divided into two layers in a limited space, and sterile mice with different requirements can be raised in different layers, and the two-layer arrangement is also convenient for the experimenter to operate; on the other hand, by arranging the air intake device 130 and the storage device on the same side, it is convenient to place the storage and air intake side on the side that is convenient for operation.

[0042] In a specific embodiment, the heights of the first feeding space 111 and the second feeding space 112 in the double-layered experimental mouse sterile feeding isolator 100 provided by the utility model are both 50-100 cm, so that the height of the double-layered experimental mouse sterile feeding isolator 100 will not be too high, which is convenient for the placement of the double-layered experimental mouse sterile feeding isolator 100. Secondly, this height setting makes it convenient for the experimenter to operate and inspect the first feeding space 111 and the second feeding space 112 through the operating device 160, thereby improving the experimental and feeding efficiency.

[0043] Preferably, a moving component is also provided at the bottom end of the mounting bracket 110, and the moving component can be used to realize the movement of the double-layered laboratory mouse sterile breeding isolator 100, so as to facilitate the transfer of the double-layered laboratory mouse sterile breeding isolator 100.

[0044] For details, see Figure 2-7 The double-layer experimental mouse sterile feeding isolator 100 also includes: a plurality of operating devices 160, which are sequentially arranged in the first storage device 140 and the second storage device 150; wherein the plurality of operating devices 160 are sequentially arranged at intervals along the length direction of the first storage device 140 and the second storage device 150.

[0045] For example, by arranging multiple operating devices 160 to be spaced in sequence along the length direction of the first storage device 140 and the second storage device 150, it is convenient for experimenters to adjust objects and sterile mice in the first storage device 140 and the second storage device 150 through the operating devices 160.

[0046] Furthermore, the operating device 160 is a flexible member, and when the operating device 160 is fully extended, the length of the operating device 160 is greater than the width of the mounting bracket 110. For example, the operating device 160 is a flexible member, and the length of the operating device 160 is greater than the width of the mounting bracket 110, so that the experimenter can fully control and adjust the experimental mouse sterile breeding isolator through the operating device 160.

[0047] Preferably, the exhaust device 120 includes: an exhaust manifold, the exhaust manifold is provided with a first opening, a second opening and a third opening; a first exhaust pipe, the first exhaust pipe is connected to the first storage device 140; a first filter component, the first filter component is connected to the first exhaust pipe, and the other end thereof is connected to the second opening; a second exhaust pipe, the second exhaust pipe is connected to the second storage device 150; a second filter component, the second filter component is connected to the second exhaust pipe, and the other end thereof is connected to the third opening.

[0048] For example, by setting up an exhaust main pipe to connect the first exhaust pipe and the second exhaust pipe respectively, the exhaust of the first storage device 140 and the second storage device 150 can be discharged through an exhaust port, which is convenient for collection and treatment; on the other hand, by setting up a first filter component and a second filter component for the first storage device 140 and the second storage device 150 respectively, different filter elements can be set according to different situations of the first storage device 140 and the second storage device 150 to improve practicality.

[0049] Preferably, the connection between the first filter assembly and the second opening is a detachable connection; and / or, the connection between the first filter assembly and the first exhaust duct is a detachable connection; and / or, the connection between the second filter assembly and the third opening is a detachable connection; and / or, the connection between the second filter assembly and the second exhaust duct is a detachable connection.

[0050] For example, by making the connection between the first filter component and the second opening detachable; and / or, the connection between the first filter component and the first exhaust pipe detachable; and / or, the connection between the second filter component and the third opening detachable; and / or, the connection between the second filter component and the second exhaust pipe detachable, the replacement of the filter component is facilitated.

[0051] Furthermore, the air intake device 130 includes: an air intake manifold, which is provided with a first air intake port, a second air intake port and a third air intake port; a first air intake pipe, which is connected to the first storage device 140; a third filter assembly, which is connected to the first air intake pipe, and the other end thereof is connected to the second opening; a second air intake pipe, which is connected to the second storage device 150; and a fourth filter assembly, which is connected to the second air intake pipe, and the other end thereof is connected to the third opening.

[0052] For example, by setting up an intake main pipe to connect the first intake duct and the second intake duct respectively, the intake air of the first storage device 140 and the second storage device 150 can enter and exit through one air inlet, which is convenient for unified air intake; on the other hand, by setting up a third filter component and a fourth filter component for the first storage device 140 and the second storage device 150 respectively, different filter elements can be set according to different situations of the first storage device 140 and the second storage device 150 to improve practicality.

[0053] Preferably, the connection between the third filter assembly and the second opening is a detachable connection; and / or, the connection between the third filter assembly and the first air intake duct is a detachable connection; and / or, the connection between the fourth filter assembly and the third opening is a detachable connection; and / or, the connection between the fourth filter assembly and the second air intake duct is a detachable connection.

[0054] For example, by making the connection between the third filter assembly and the second opening a detachable connection; and / or, the connection between the third filter assembly and the first air intake duct a detachable connection; and / or, the connection between the fourth filter assembly and the third opening a detachable connection; and / or, the connection between the fourth filter assembly and the second air intake duct a detachable connection, the replacement of the filter assembly is facilitated.

[0055] Specifically, the double-layer experimental mouse sterile feeding isolator 100 also includes: a plurality of fixed baffles 171, which are arranged in the first feeding space 111 and the second feeding space 112 in sequence; a first mounting bracket 172, which is arranged between the plurality of fixed baffles 171; a second mounting bracket 173110, which is arranged between the plurality of fixed baffles 171; wherein the second mounting bracket 173110 and the first mounting bracket 172 are arranged on different horizontal planes.

[0056] For example, the first feeding space 111 and the second feeding space 112 are separated by setting a plurality of fixed baffles 171, and the plurality of fixed baffles 171 are not set on the same horizontal plane, so as to facilitate the placement of the sterile feeding isolator for experimental mice. At the same time, no fixing device is set at the upper end, which is also convenient for the operation of the experimenter.

[0057] Specifically, the first storage device 140 and the second storage device 150 have the same structure, and both include: a storage cavity, the storage cavity is provided with a first storage opening and a second storage opening; a first opening and closing device 141, the first opening and closing device 141 is arranged at the first storage opening; a second opening and closing device, the second opening and closing device is arranged at the second storage opening; wherein, when the first opening and closing device 141 and the second opening and closing device are closed, the storage cavity is a closed space.

[0058] For example, by setting the first opening and closing device 141 and the second opening and closing device, it is convenient for the experimenter to place the required experimental items into the corresponding breeding space. For example, when the experimenter needs to place the experimental items into the breeding space, the first storage opening can be opened first, and then the experimental items are placed into the storage cavity and the first storage opening is closed. At this time, the storage cavity is a closed space. Then the second opening and closing device is opened, and the experimenter places the experimental items into the breeding space through the operating device 160, thereby preventing the breeding space from being disturbed by the external environment, which may cause deviations in the experimental results.

[0059] Preferably, the second opening and closing device includes: an opening and closing door 142; a hook 143, the hook 143 is arranged on a side of the storage cavity close to the opening and closing door 142; a fixing member 144, the fixing member 144 is arranged on a side of the opening and closing door 142 away from the storage cavity, and a waist-shaped hole is provided on the fixing member 144; a connecting rod 145, the connecting rod 145 passes through the waist-shaped hole, and when the opening and closing door 142 is closed, the connecting rod 145 is arranged on the hook 143; a rotating member 146, the rotating member 146 is sleeved on the connecting rod 145, and the rotating member 146 and the connecting rod 145 are eccentrically arranged.

[0060] For example, by configuring the second opening and closing device as the rotating member 146 and the connecting rod 145 to be eccentrically configured, the second opening and closing device can be opened and closed by turning the rotating member 146, thereby facilitating the operation of the experimenter.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A double-layer sterile feeding isolator for experimental mice, characterized in that: The double-layer experimental mouse sterile feeding isolator comprises: A mounting bracket (110), wherein a first breeding space (111) and a second breeding space (112) are provided on the mounting bracket (110); an exhaust device (120), the exhaust device (120) being connected to the first breeding space (111) and the second breeding space (112) respectively, and an exhaust outlet of the exhaust device (120) being arranged on a side close to the bottom end of the mounting bracket (110); an air intake device (130), the air intake device (130) being connected to the first breeding space (111) and the second breeding space (112) respectively, and an air intake inlet of the air intake device (130) being arranged on a side close to the top end of the mounting bracket (110); A first storage device (140), wherein the first storage device (140) is connected to the first breeding space (111), and the first storage device (140) and the exhaust device (120) are arranged on the same side; A second storage device (150), the second storage device is connected to the second breeding space (112), and the second storage device (150) and the exhaust device (120) are arranged on the same side.

2. The double-layer laboratory mouse sterile feeding isolator according to claim 1, characterized in that: Also includes: A plurality of operating devices (160), wherein the plurality of operating devices (160) are sequentially arranged on the first storage device (140) and the second storage device (150); Wherein, the plurality of operating devices (160) are arranged in sequence and at intervals along the length direction of the first storage device (140) and the second storage device (150).

3. The double-layer laboratory mouse sterile feeding isolator according to claim 2, characterized in that: The operating device (160) is a flexible member, and when the operating device (160) is fully extended, the length of the operating device (160) is greater than the width of the mounting bracket (110).

4. The double-layer laboratory mouse sterile feeding isolator according to claim 2, characterized in that: The exhaust device (120) comprises: An exhaust manifold, wherein the exhaust manifold is provided with a first opening, a second opening and a third opening; a first exhaust duct, the first exhaust duct being connected to the first storage device (140); A first filter assembly, wherein the first filter assembly is connected to the first exhaust pipe and the other end thereof is connected to the second opening; a second exhaust duct, the second exhaust duct being connected to the second storage device (150); The second filter assembly is connected to the second exhaust pipe, and the other end opposite to the second filter assembly is connected to the third opening.

5. The double-layer laboratory mouse sterile feeding isolator according to claim 4, characterized in that: The connection between the first filter assembly and the second opening is a detachable connection; and / or, The connection between the first filter assembly and the first exhaust pipe is a detachable connection; and / or, The connection between the second filter assembly and the third opening is a detachable connection; and / or, The connection between the second filter assembly and the second exhaust pipe is a detachable connection.

6. The double-layer laboratory mouse sterile feeding isolator according to claim 4, characterized in that: The air intake device (130) comprises: An air intake manifold, wherein the air intake manifold is provided with a first air intake port, a second air intake port and a third air intake port; A first air intake duct, the first air intake duct being connected to the first storage device (140); a third filter assembly, the third filter assembly being connected to the first air inlet duct and having the other end thereof being connected to the second opening; a second air intake duct, the second air intake duct being connected to the second storage device (150); A fourth filter assembly is connected to the second air intake duct, and the other end opposite to the fourth filter assembly is connected to the third opening.

7. The double-layer laboratory mouse sterile feeding isolator according to claim 6, characterized in that: The connection between the third filter assembly and the second opening is a detachable connection; and / or, The connection between the third filter assembly and the first air intake duct is a detachable connection; and / or, The connection between the fourth filter assembly and the third opening is a detachable connection; and / or, The connection between the fourth filter assembly and the second air intake duct is a detachable connection.

8. The double-layer laboratory mouse sterile feeding isolator according to claim 1, characterized in that: Also includes: a plurality of fixed baffles (171), wherein the plurality of fixed baffles (171) are sequentially arranged in the first breeding space (111) and the second breeding space (112); A first mounting bracket (172), the first mounting bracket (172) being disposed between the plurality of fixed baffles (171); a second mounting bracket (173), the second mounting bracket (173) being disposed between the plurality of fixed baffles (171); Wherein, the second mounting bracket (173) and the first mounting bracket (172) are arranged on different horizontal planes.

9. The double-layer laboratory mouse sterile feeding isolator according to claim 8, characterized in that: The first storage device (140) and the second storage device (150) have the same structure, and both include: A storage cavity, wherein the storage cavity is provided with a first storage opening and a second storage opening; A first opening and closing device (141), wherein the first opening and closing device (141) is arranged at the first storage opening; a second opening and closing device, the second opening and closing device being disposed at the second storage opening; Wherein, when the first opening and closing device (141) and the second opening and closing device are closed, the storage cavity is a closed space.

10. The double-layer laboratory mouse sterile feeding isolator according to claim 9, characterized in that: The second opening and closing device comprises: Opening and closing doors (142); A hook (143), the hook (143) being arranged on a side of the storage cavity close to the opening and closing door (142); A fixing member (144), the fixing member (144) being arranged on a side of the opening and closing door (142) away from the storage cavity, and the fixing member (144) being provided with a waist-shaped hole; A connecting rod (145), the connecting rod (145) passes through the waist-shaped hole, and when the opening and closing door (142) is closed, the connecting rod (145) is arranged on the hook (143); A rotating member (146) is sleeved on the connecting rod (145), and the rotating member (146) and the connecting rod (145) are eccentrically arranged.

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