Double-layer pig negative pressure isolator

Abstract

The utility model relates to the technical field of experimental equipment, in particular to a double-layer pig negative pressure isolator which comprises a frame body and two sets of isolation units arranged on the frame body in the height direction. The isolation unit comprises an operation cabin, an air supply and exhaust system arranged on the top of the operation cabin, a control system arranged on the top of the operation cabin and a delivery window arranged on the side portion of the operation cabin, the air supply and exhaust system communicates with the operation cabin, and the delivery window communicates with the operation cabin; the air supply and exhaust systems of the two isolation units communicate with each other, and the delivery windows of the two isolation units communicate with each other. The utility model provides a double-layer negative pressure isolator for pigs, which solves the technical problem of unreasonable space of an isolation cabin in the prior art, improves the adaptability of the pigs and improves the space utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a double-layer negative pressure isolator for pigs. Background Technology

[0002] A patent with publication number CN221962523U discloses a negative pressure isolator for laboratory animals. The controller of this negative pressure isolator occupies a large space, and the capacity of the isolation chamber is small. For animals like pigs, the space is very small, which affects the ease of use for experimental personnel and the adaptability to animals. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention provides a double-layer negative pressure isolator for pigs, which solves the technical problem of unreasonable isolation chamber space in the prior art, improves pig adaptability, and increases space utilization.

[0004] This utility model provides a double-layer negative pressure isolator for pigs, including a frame and two sets of isolation units arranged along the height direction of the frame;

[0005] The isolation unit includes an operating cabin, an air supply and exhaust system located on the top of the operating cabin, a control system located on the top of the operating cabin, and a pass-through window located on the side of the operating cabin. The air supply and exhaust system is connected to the operating cabin, the pass-through window is connected to the operating cabin, the air supply and exhaust systems of the two isolation units are connected, and the pass-through windows of the two isolation units are connected.

[0006] A further improvement of this utility model of a double-layer negative pressure isolator for pigs is that the side of the operating chamber has two operating windows and one operating port, the operating port is hinged with an inflatable airtight door, and the operating window is provided with a glove ring and an openable and closable glove ring baffle.

[0007] A further improvement of this utility model of a double-layer pig negative pressure isolator is that a support groove is provided on the side of the inflatable airtight door, and a support air rod is provided on the side of the operating chamber corresponding to the position of the support groove.

[0008] A further improvement of this utility model of a double-layer pig negative pressure isolator is that it also includes an airtight door lock installed in the operating chamber to lock the airtight door.

[0009] A further improvement of this utility model of a double-layer negative pressure isolator for pigs is that the side of the air supply and exhaust system is provided with a disinfectant inlet and a disinfectant outlet.

[0010] A further improvement of this utility model of a double-layer negative pressure isolator for pigs is that the control system is equipped with a power button, a touch control screen, and a buzzer.

[0011] A further improvement of this utility model of a double-layer negative pressure isolator for pigs is that a water tank is provided at the top of the transfer window, and the transfer window is provided with a disinfectant inlet and a disinfectant outlet.

[0012] A further improvement of this utility model of a double-layer pig negative pressure isolator is that the air supply and exhaust system includes an air supply unit and an exhaust unit;

[0013] The air supply unit includes an air supply fan, an air supply heater, an air supply electric airtight valve, an air supply breathing filter, and an air supply box. The air supply box is connected to the operating cabin through the air supply air filter. An air supply box cover is provided at the top opening of the air supply box. The air supply box cover and the air supply box are connected by an air supply box clamping block. The air supply air filter and the top plate of the operating cabin are connected by an air supply clamping assembly.

[0014] The exhaust unit includes an exhaust fan, an electric exhaust valve, an exhaust temperature sensor, an exhaust sampling port, an exhaust breathing filter, and an exhaust box. The exhaust box is connected to the operating cabin through the exhaust air filter. An exhaust box cover is provided at the top opening of the exhaust box. The exhaust box cover and the exhaust box are connected by an exhaust box clamping block. The exhaust air filter and the top plate of the operating cabin are tightly connected by an exhaust clamping assembly.

[0015] A further improvement of this utility model of a double-layer pig negative pressure isolator is that the bottom of the operating chamber is provided with a sewage outlet and an excrement disposal port.

[0016] A further improvement of this utility model of a double-layer pig negative pressure isolator is that casters are provided at the bottom of the frame.

[0017] The above-described one or more technical solutions in this embodiment of the present invention improve the adaptability of the negative pressure isolator to biological pigs. By setting an inflatable airtight door at the operation port, it is convenient to conduct experimental operations on the organisms. By setting a support groove and a support rod at the inflatable airtight door, the positional stability of the inflatable airtight door is improved, and the sealing effect of the operation port is enhanced. By setting a ventilation system, air exchange in the operation chamber is facilitated. By setting a disinfectant inlet and a disinfectant outlet, the disinfection effect in the operation chamber is improved. By setting casters, the movement of the entire negative pressure isolator is facilitated. By setting a double-layer operation chamber, it is convenient for experimental personnel to observe multiple organisms at the same time, thereby improving experimental efficiency.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the double-layer pig negative pressure isolator provided in this embodiment of the utility model.

[0021] Figure 2 This is a front view of the double-layer pig negative pressure isolator provided in this embodiment of the utility model.

[0022] Figure 3 This is a right view of the double-layer pig negative pressure isolator provided in this embodiment of the utility model.

[0023] Figure 4 This is a schematic diagram of the air supply unit in the double-layer pig negative pressure isolator provided in this embodiment of the utility model.

[0024] Figure 5 This is a schematic diagram of the exhaust unit in the double-layer pig negative pressure isolator provided in this embodiment of the utility model.

[0025] Figure 6 This is a schematic diagram of the air supply and exhaust unit in the double-layer pig negative pressure isolator provided in this embodiment of the utility model.

[0026] Figure label:

[0027] 1. Frame; 11. Casters; 2. Operating cabin; 21. Excrement disposal port; 22. Sewage treatment port; 23. Inflatable airtight door; 24. Glove ring baffle; 25. Glove ring; 26. Support air rod; 27. Operating cabin top plate; 3. Control system; 4. Water tank; 41. Water dispenser connection port; 5. Pass-through window; 51. Pass-through window disinfectant inlet; 52. Pass-through window disinfectant outlet; 60. Air supply unit; 61. Exhaust unit; 8. PLC controller;

[0028] 31. Disinfectant inlet; 32. Power button; 33. Touch control panel; 34. Buzzer; 35. Disinfectant outlet; 601. Supply air filter; 602. Supply air compression assembly; 603. Supply air box; 604. Supply air box cover; 605. Supply air box compression block; 606. Supply air breathing filter; 607. Supply air electric shut-off valve; 608. Supply air heater; 609. Supply air fan; 611. Exhaust air fan; 612. Exhaust air electric shut-off valve; 613. Exhaust air temperature sensor; 614. Exhaust air sampling port; 615. Exhaust air breathing filter; 616. Exhaust air box compression block; 617. Exhaust air box cover; 618. Exhaust air box; 619. Exhaust air filter. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The following embodiments are used to illustrate this utility model but should not be used to limit its scope.

[0030] The following is combined with Figure 1 The present invention describes a double-layer negative pressure isolator for pigs, comprising a frame 1 and two sets of isolation units disposed along the height direction of the frame 1;

[0031] The isolation unit includes an operating cabin 2, an air supply and exhaust system located on the top of the operating cabin 2, a control system 3 located on the top of the operating cabin 2, and a transfer window 5 located on the side of the operating cabin 2. The air supply and exhaust system is connected to the operating cabin 2, the transfer window 5 is connected to the operating cabin 2, the air supply and exhaust systems of the two isolation units are connected, and the transfer windows 5 of the two isolation units are connected.

[0032] In a preferred embodiment of the double-layer pig negative pressure isolator of this utility model, such as Figure 2 As shown, the side of the operating cabin 2 has two operating windows and one operating port. An inflatable airtight door 23 is hinged at the operating port, and a glove ring 25 and an openable and closable glove ring baffle 24 are provided at the operating window.

[0033] Preferably, the inflatable airtight door 23 is also provided with an operating window, and the operating window is also provided with a glove ring 25 and an openable and closable glove ring baffle 24.

[0034] Preferably, the glove ring baffle 24 is made of a stretchable and deformable material, such as rubber, and a telescopic opening is provided at the center of the glove ring baffle. When not in use, the telescopic opening is sealed. When in use, the operator inserts into the telescopic opening to deform the glove ring baffle 24 so that it can be inserted into the operating chamber 2 to perform experimental operations.

[0035] Preferably, an operating glove is provided on the glove ring 25. After removing a single glove from the operating window, the airflow velocity can reach 0.7m / s, which can ensure that the airflow direction of the operating window is clearly inward and there is no overflow when the glove is accidentally dropped or damaged.

[0036] Specifically, the top of the inflatable airtight door 23 and the side wall of the operating cabin 2 are rotatably connected by a hinge or hinge. The side of the inflatable airtight door 23 is provided with a support groove, and the side of the operating cabin 2 is provided with a support air rod 26 corresponding to the position of the support groove. The support air rod 26 is supported by the support groove to prevent the inflatable airtight door 23 and the operating port of the operating cabin 2 from being misaligned when the inflatable airtight door 23 is closed, thereby improving the airtightness of the operating cabin 2.

[0037] Better, such as Figure 1 and Figure 2 As shown, there are two symmetrically arranged support slots, and two corresponding support air rods 26 are arranged.

[0038] Furthermore, it also includes an airtight door lock installed in the operating compartment 2 to lock the inflatable airtight door. The airtight door lock is installed at the bottom of the inflatable airtight door 23. The airtight door lock can be in the form of a latch and a locking plate, wherein the locking plate is fixed to the operating compartment 2 and the latch is fixed to the inflatable airtight door 23. The inflatable airtight door 23 is locked by the latch engaging with the locking plate.

[0039] Furthermore, such as Figure 2 As shown, the side of the air supply and exhaust system is provided with a disinfectant injection port 31 and a disinfectant discharge port 35. The disinfectant injection port 31 is connected to the air supply electric shut-off valve 607, and the disinfectant discharge port 35 is connected to the exhaust electric shut-off valve 612. By directly introducing the disinfectant into the air supply and exhaust system, it is convenient to disinfect the operating chamber 2 and the air supply and exhaust system, avoid bacterial growth, and maintain the hygiene of the operating chamber 2.

[0040] Furthermore, such as Figure 3 As shown, a water tank 4 is provided on the top of the transfer window 5. The water tanks 4 of the two adjacent operation compartments 2 are connected by a water inlet pipe. A water inlet 41 is provided on the water inlet pipe corresponding to the position where the water dispenser is placed in the operation compartment. A valve is provided at the water dispenser connection port 41. By opening the valve, water from the water tank 4 is replenished into the water dispenser.

[0041] Furthermore, the transfer window 5 is provided with a transfer window disinfectant inlet 51 and a transfer window disinfectant outlet 52. The transfer window 5 facilitates feeding and watering operations for pigs in the operating chamber 2. The feed troughs used for feeding and the waterers used for watering are disinfected through the transfer window disinfectant inlet and the transfer window disinfectant outlet. The disinfectant used at the transfer window disinfectant inlet can be hydrogen peroxide disinfectant gas.

[0042] Furthermore, the bottom of the operating chamber 2 is provided with a sewage treatment port 22 and an excrement treatment port 21. The excrement treatment port 21 is used to clean up solid excrement and garbage in the operating chamber 2, and the sewage in the operating chamber 2 is discharged through the sewage treatment port 22, which facilitates cleaning of the operating chamber 2.

[0043] Furthermore, the bottom of the frame 1 is equipped with casters 11, which facilitates pushing the frame 1 and allows experimental personnel to quickly move the negative pressure isolator as needed.

[0044] Furthermore, the control system 3 is equipped with a power button 32, a touch control screen 33, and a buzzer 34.

[0045] Furthermore, such as Figure 6 As shown, the control system 3 includes a control housing, and the air supply and exhaust system is located inside the control housing. The control housing is connected to the top plate 27 of the operating cabin. The air supply and exhaust system includes an air supply unit 60 and an exhaust unit 61. The control system also includes a PLC controller 8, which is connected to the air supply unit 60, the exhaust unit 61, the power button 32, the touch control screen 33, and the buzzer 34.

[0046] Specifically, such as Figure 4 As shown, the air supply unit 60 includes an air supply fan 609, an air supply heater 608, an air supply electric shut-off valve 607, an air supply breathing filter 606, and an air supply box 603. The air supply box 603 is connected to the operating cabin 2 through the air supply air filter 601. An air supply box cover 604 is provided at the top opening of the air supply box 603. The air supply box cover 604 and the air supply box 603 are connected by an air supply box clamping block 605. The air supply box clamping block 605 is a screw-on nut. By screwing the air supply box clamping block, the air supply box cover and the top opening of the air supply box 603 are tightly connected. The air supply air filter 601 and the top plate 27 of the operating cabin are tightly connected by an air supply clamping assembly 602.

[0047] Specifically, such as Figure 5 As shown, the exhaust unit 61 includes an exhaust fan 611, an exhaust electric airtight valve 612, an exhaust temperature sensor 613, an exhaust sampling port 614, an exhaust breathing filter 615, and an exhaust box 618. The exhaust box 618 is connected to the operating chamber 2 through an exhaust air filter 619. An exhaust box cover 617 is provided at the top opening of the exhaust box 618. The exhaust box cover 617 and the exhaust box 618 are connected by an exhaust box clamping block 616, which is a screw-on nut. By screwing the exhaust box clamping block 616, the exhaust box cover 617 and the top opening of the exhaust box 618 are tightly connected. The exhaust air filter 619 and the top plate 27 of the operating chamber are tightly connected by an exhaust clamping assembly. The airflow rate can be detected through the exhaust sampling port 614, the leakage rate of the operating chamber 2 can be calculated, and the bacterial content in the operating chamber 2 can be detected, among other experimental operations.

[0048] Specifically, air outside the operating cabin 2 is supplied into the cabin through the air supply unit 60, and indoor air in the operating cabin 2 is discharged from the cabin through the exhaust unit 61, thereby achieving air circulation within the operating cabin 2.

[0049] Preferably, both the supply air filter 601 and the exhaust air filter 619 are H13 grade high-efficiency filters. The operating chamber 2 uses indoor or outdoor air. The supply air is filtered by an H13 grade high-efficiency filter with a filtration efficiency of ≥99.99%@0.3μm. The supply air filter 601 is a single H13 grade high-efficiency filter (50m3 / h, 80Pa) with dimensions of 203mm×203mm×65mm. The exhaust air filter 619 is an H13 grade high-efficiency filter with dimensions of 203mm×203mm×65mm.

[0050] Ideally, the air supply volume should be 60 m³ / h.

[0051] Furthermore, the entire operating cabin 2 is made of bonded acrylic sheets, with transparent acrylic sheets on the back, front, and sides, and white opaque acrylic sheets on the top and bottom, providing good overall visibility. A transfer window 5 is bonded to the right side of the operating cabin 2. The transfer window 5 is also made of acrylic sheets. Except for the top and bottom, which are made of opaque acrylic sheets, the other parts of the transfer window 5 are made of transparent acrylic sheets, providing good visibility as well.

[0052] In one specific implementation case, the pig is placed into the operating chamber 2 by opening the inflatable airtight door 23, and the ventilation system is turned on by the touch control screen 33. The disinfectant is introduced into the operating chamber 2 through the disinfectant injection port 31 and the disinfectant discharge port 35 through the ventilation system to disinfect the operating chamber 2. The disinfectant is then passed through the disinfectant inlet and the disinfectant outlet of the transfer window to disinfect the transfer window 5. The operator can conduct experimental operations on the pig through the glove ring baffle 24.

[0053] This utility model adopts an overall sealing technology, with a leakage rate of no more than 0.25% per hour under ±250Pa. It uses separate air supply unit 60 and exhaust unit 61 to form an air supply and exhaust system. The air supply filter 601 and the exhaust air filter 619 have in-situ leak detection capabilities, which facilitates leak detection operations on the operating chamber 2.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A double-walled pig isolator, characterized in that The rack body and two groups of isolation units arranged along the height direction of the rack body; The isolation unit comprises an operation cabin, a supply and exhaust system arranged on the top of the operation cabin, a control system arranged on the top of the operation cabin, and a delivery window arranged on the side of the operation cabin, the supply and exhaust system is communicated with the operation cabin, the delivery window is communicated with the operation cabin, the supply and exhaust systems of the two isolation units are communicated, and the delivery windows of the two groups of isolation units are communicated.

2. The double-pig negative pressure isolator of claim 1, wherein, Two operation windows and an operation port are arranged on the side of the operation cabin, an inflatable airtight door is hingedly arranged at the operation port, a glove ring and an openable and closable glove ring baffle are arranged at the operation window.

3. The double-pig negative pressure isolator of claim 2, wherein, A support groove is arranged on the side of the inflatable airtight door, and a support air rod is arranged on the side of the operation cabin corresponding to the position of the support groove.

4. The double-pig negative pressure isolator of claim 2, wherein, An airtight door lock is arranged in the operation cabin to lock the inflatable airtight door.

5. The double-pig negative pressure isolator of claim 1, wherein, A disinfectant inlet and a disinfectant outlet are arranged on the side of the supply and exhaust system.

6. The double-pig negative pressure isolator of claim 1, wherein, The control system is provided with a power button, a touch control screen and a buzzer.

7. The double-pig negative pressure isolator of claim 1, wherein, A water tank is arranged on the top of the delivery window, and a delivery window disinfectant inlet and a delivery window disinfectant outlet are arranged on the delivery window.

8. The double-pig negative pressure isolator of claim 1, wherein, The supply and exhaust system comprises a supply unit and an exhaust unit; The supply unit comprises a supply fan, a supply heater, a supply electric airtight valve, a supply breathing filter and a supply box, the supply box is communicated with the operation cabin through a supply air filter, a supply box cover plate is arranged at the top opening of the supply box, the supply box cover plate and the supply box are connected through a supply box pressing block, and the supply air filter and the top plate of the operation cabin are connected through a supply pressing assembly; The exhaust unit comprises an exhaust fan, an exhaust electric airtight valve, an exhaust temperature sensor, an exhaust sampling port, an exhaust breathing filter and an exhaust box, the exhaust box is communicated with the operation cabin through an exhaust air filter, an exhaust box cover plate is arranged at the top opening of the exhaust box, the exhaust box cover plate and the exhaust box are connected through an exhaust box pressing block, and the exhaust air filter and the top plate of the operation cabin are tightly connected through an exhaust pressing assembly.

9. The double-pig negative pressure isolator of claim 1, wherein, A sewage discharge port and a feces disposal port are arranged on the bottom of the operation cabin.

10. The double-pig negative pressure isolator of claim 1, wherein, The bottom of the rack body is provided with a foot wheel.

Images