Pet oxygen therapy cabin door manual interlocking device

Abstract

The utility model discloses a pet oxygen therapy cabin's cabin door manual interlocking device, one end sealed fixed of tubular cabin body has the end plate of same coaxial arrangement, the other end sealed fixed has the connecting ring of same coaxial arrangement, one side of connecting ring is connected with cabin door through the swing of hinge, the end face for being used for with connecting ring contact of cabin door corresponds to the middle coaxial heart fixed sealing washer of connecting ring, locking device includes the lock catch fixed in the rim of connecting ring and the lock ring fixed in the cabin door and matched with lock catch, still includes a plurality of locking bolts, and the pressure relief bolt is connected with threaded hole B after passing through connecting through -hole B from outside to inside, and sealing cover A is pressed tightly and sealed between the nut of pressure relief bolt and cabin door. From the above structure can know, the pet oxygen therapy cabin's cabin door manual interlocking device of the utility model, through various locking fixed structure to avoid the high pressure oxygen of pet oxygen therapy cabin and can not realize the treatment effect of high pressure oxygen, and still can be convenient for the pressure relief operation in oxygen therapy cabin after oxygen therapy.

Description

Technical Field

[0001] This utility model relates to the technical field of manual sealing interlocking and pressure relief of a pet oxygen chamber door, specifically to a manual interlocking device for the door of a pet oxygen therapy chamber. Background Technology

[0002] Currently, the most common hyperbaric oxygen chambers in animal hospitals can be roughly divided into two types: steel "hyperbaric oxygen therapy chambers," which can be used by a large number of animals at the same time and are mainly used for the treatment of animal diseases; and small acrylic health chambers, which are used in the pet grooming industry to provide oxygen and health care for pets after bathing and grooming. These chambers can operate at a pressure of about 1.4 atmospheres and are generally equipped with an air compressor and an oxygen generator as the source of oxygen and pressurization.

[0003] The pet oxygen therapy chamber previously applied for by this applicant is connected to a high-pressure chamber via an air compressor and two air pipes. This allows for initial pre-pressurization of the high-pressure chamber using only compressed air. Then, through the simultaneous action of an oxygen generator and an air compressor, the air pressure inside the high-pressure chamber continues to increase, as does the oxygen content. This avoids excessive oxygen concentration and waste. However, this requires a very high level of sealing between the chamber door and the chamber body to prevent gas from escaping during use. Otherwise, it would require frequent or even continuous addition of oxygen or air to the oxygen therapy chamber to maintain the air pressure in the nutrient chamber, leading to high energy consumption. In some cases, poor sealing could even prevent the oxygen therapy chamber from achieving its intended effect.

[0004] Currently, the sealing of cargo doors on the market requires a linkage sealing door structure similar to a sealing door. The linkage sealing structure involved in this type of sealing door is expensive, and it also requires processing of the door structure itself. The strength requirements of the door material also need to be further improved, which further increases the production cost. Moreover, if the sealing effect of this linkage sealing door structure decreases after a period of use, the entire linkage sealing structure needs to be replaced, or even the door itself needs to be replaced, which will lead to high maintenance costs in the later stage.

[0005] Since the pet oxygen therapy chamber is filled with pressurized air and oxygen during use, the chamber door needs to be depressurized before it can be opened after use. Otherwise, the pressure inside the chamber will cause an impact when the door is opened, which could injure the user.

[0006] Currently, all pressure relief valves on the market, whether electronic or manual, are dedicated valves that need to be purchased separately, resulting in relatively high costs. Furthermore, because these are purchased devices, pet oxygen chambers require specially designed and matched structures. This means that if the purchased valve model is slightly different, a corresponding structural design is necessary for the new valve, further increasing the production cost of the pet oxygen chamber. To address this, the applicant has independently developed a manual pressure relief valve, thereby reducing the cost of the manual pressure relief valve and the corresponding pet oxygen chamber production cost. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a manual interlocking device for the door of a pet oxygen therapy chamber. It has a simple structure and is easy to operate. Through multiple locking and fixing structures, it avoids the leakage of high-pressure oxygen in the pet oxygen therapy chamber, which would prevent the high-pressure oxygen therapy effect from being achieved. It also facilitates the depressurization operation in the oxygen therapy chamber after the oxygen therapy is completed.

[0008] The technical solution adopted by this utility model is: The manual interlocking device for the door of a pet oxygen therapy chamber includes a tubular chamber body. One end of the tubular chamber body is sealed and fixed with a coaxially arranged end plate, and the other end is sealed and fixed with a coaxially arranged connecting ring. A door is hinged to one side of the connecting ring. The door is locked and fixed to the connecting ring by a locking device. The end face of the door that contacts the connecting ring is coaxially fixed with a sealing ring corresponding to the middle of the connecting ring. The locking device includes a latch fixed to the edge of the connecting ring and a locking ring fixed to the door that matches the latch. It also includes multiple locking bolts. The connecting ring is located on the outside of the tubular chamber body and has multiple locking bolts. The door has a matching threaded through hole A on the outside of the sealing ring, and a matching connecting through hole A is provided corresponding to the threaded through hole A. Each locking bolt passes through the connecting through hole A and is then connected and locked to the threaded through hole A. The connecting ring has a threaded through hole B on the inside of the tubular cabin connection, and the door has a matching connecting through hole B corresponding to the threaded through hole B. The connecting through hole B is located within the area enclosed by the sealing ring. After the door and the connecting ring are locked and fixed, the pressure relief bolt passes through the connecting through hole B from the outside to the inside and is connected to the threaded through hole B. The sealing sleeve A, which is fitted and fixed on the surface of the pressure relief bolt, is pressed and sealed between the nut of the pressure relief bolt and the door.

[0009] A further improvement of this utility model is that both the locking bolt and the pressure relief bolt include a rod body coaxially connected to the nut. A screw A is coaxially provided at the end of the rod body away from the nut, and a shaft is coaxially provided at the end of the rod body connected to the nut. The minor diameter of the screw A is larger than the diameter of the rod body, and the sealing sleeve A is sleeved and connected to the shaft.

[0010] A further improvement of this utility model is that the diameter of the shaft of the locking bolt is less than or equal to the inner diameter of the connecting through hole A, and the diameter of the shaft of the pressure relief bolt is less than or equal to the inner diameter of the connecting through hole B.

[0011] A further improvement of this utility model is that the axial length between the screw A and the sealing sleeve A is less than the axial distance between the end face of the hatch facing away from the connecting ring and the end face of the connecting ring facing the hatch when the hatch and the connecting ring are locked and fixed.

[0012] A further improvement of this utility model is that a threaded groove A is provided at the center of the end face of the shaft facing the rod body, and a screw B matching the threaded groove A is provided at the end of the rod body facing the shaft. A limiting protrusion ring is provided on the inner wall of the sealing sleeve A facing the rod body, and the inner diameter of the limiting protrusion ring is greater than or equal to the diameter of the rod body.

[0013] A further improvement of this utility model is that when the screw B of the rod body is fully threadedly connected to the threaded groove A of the shaft, the pin hole A provided on the side wall of the shaft and the pin hole B provided on the screw B correspond to each other, and the positioning pin passes through the pin hole A and the pin hole B respectively to fix the rod body and the shaft circumferentially.

[0014] A further improvement of this utility model is that the threaded through hole A and the threaded through hole B are both inner holes of the sealing tube, and the sealing tube is sealed and fixed to the sealing hole provided by the connecting ring.

[0015] A further improvement of this utility model is that one end of the sealing tube located inside the tubular chamber extends outward from the connecting ring and is provided with a connecting flange. The fixing bolt passes through the connecting through hole C provided by the connecting flange and is fixedly connected to the threaded groove B provided by the connecting ring.

[0016] A further improvement of this utility model is that a sealing gasket is provided coaxially between the connecting flange and the connecting ring, corresponding to the position of the fixing bolt.

[0017] A further improvement of this utility model is that a sealing sleeve B is coaxially fitted and fixed between the sealing tube and the sealing hole.

[0018] The beneficial effects of this utility model are as follows: First, the manual interlocking device for the door of the pet oxygen therapy chamber of this application has a simple structure and is easy to operate. Through multiple locking and fixing structures, it avoids the leakage of high-pressure oxygen in the pet oxygen therapy chamber, thus preventing the failure to achieve the therapeutic effect of high-pressure oxygen. It also facilitates the depressurization operation in the oxygen therapy chamber after the oxygen therapy is completed.

[0019] Secondly, the manual interlocking device for the door of the pet oxygen therapy chamber in this application is configured with the locking bolt, threaded through hole A and connecting through hole A as the same structure or as similar components as the pressure relief bolt, threaded through hole B and connecting through hole B, thereby improving the replacement rate and reducing production and maintenance costs.

[0020] Third, the manual interlocking device for the door of the pet oxygen therapy chamber in this application can effectively reduce the production cost of the manual pressure relief valve and the corresponding design and production cost of the pet oxygen chamber, while ensuring the pressure relief effect.

[0021] Fourth, the manual interlock device for the door of the pet oxygen therapy chamber of this application only requires the replacement of the sealing sleeve A as a consumable part during later use, which reduces the maintenance cost and difficulty of the manual pressure relief valve in the later stage.

[0022] Fifth, the manual interlocking device for the door of the pet oxygen therapy chamber in this application sets the threaded through hole B as the inner hole of the sealing tube and fixes it to the connecting ring of the pet oxygen chamber through the sealing tube. This avoids the need to directly replace the connecting ring of the pet oxygen chamber after the threads of the pressure relief bolt are worn due to long-term tightening. Instead, only the sealing tube needs to be replaced, which further reduces the maintenance cost in the later stage.

[0023] Sixth, the manual interlock device for the door of the pet oxygen therapy chamber in this application further ensures the sealing effect of the pressure relief valve when it is not depressurized by setting a sealing gasket and a sealing sleeve B.

[0024] Seventh, the manual interlocking device for the door of the pet oxygen therapy chamber of this application has a simple structure and a simple manufacturing process, resulting in low production costs.

[0025] Eighth, the simple manual depressurization of the pet oxygen chamber door of this application allows for adjustment of the manual depressurization efficiency by turning the depressurization bolt during use. Attached Figure Description

[0026] Figure 1 A front view diagram of the pet oxygen chamber with the hatch opened and swinging 180 degrees.

[0027] Figure 2 This is a partial side sectional enlarged view of the hatch and connecting ring in Example 1, corresponding to the location of the locking bolt.

[0028] Figure 3 This is an enlarged schematic diagram of the locking bolt in Example 1.

[0029] Figure 4 This is a partial side sectional enlarged schematic diagram of the hatch and connecting ring in Example 1, corresponding to the location of the pressure relief bolt.

[0030] Figure 5This is an enlarged schematic diagram of the pressure relief bolt in Example 1.

[0031] Figure 6 This is a partial side sectional enlarged view of the hatch and connecting ring corresponding to the location of the locking bolt in Embodiment 2.

[0032] Figure 7 This is an enlarged schematic diagram of the locking bolt in Example 2.

[0033] Figure 8 This is a partial side sectional enlarged schematic diagram of the hatch and connecting ring in Example 2, corresponding to the location of the pressure relief bolt.

[0034] Figure 9 This is an enlarged schematic diagram of the pressure relief bolt in Example 2.

[0035] in Figure 1 The dashed line in the image represents the connection point of the tubular hull located on the back of the connecting ring. Detailed Implementation

[0036] Example

[0037] Combination Figures 1-5 It is known that the manual interlocking device for the door of the pet oxygen therapy chamber includes a tubular chamber body 1 of the pet oxygen therapy chamber. One end of the tubular chamber body 1 is sealed and fixed with a coaxially arranged end plate 2, and the other end is sealed and fixed with a coaxially arranged connecting ring 3. One side of the connecting ring 3 is sway-connected to a door 4 via a hinge 6. The door 4 is locked and fixed to the connecting ring 3 by a locking device. The end face of the door 4 that contacts the connecting ring 3 is coaxially fixed with a sealing ring 9 corresponding to the middle of the connecting ring 3. The locking device includes a latch 7 fixed to the edge of the connecting ring 3 and a locking ring 8 fixed to the door 4 that matches the latch 7. It also includes multiple locking bolts 14. The connecting ring 3 is located on the outside of the tubular chamber body 1 and has multiple threaded through holes that match the locking bolts 14. A10, the hatch 4 is located outside the sealing ring 9 and has a matching connecting through hole A11 corresponding to the threaded through hole A10. Each locking bolt 14 passes through the connecting through hole A11 and is connected and locked to the threaded through hole A10. The connecting ring 3 is located inside the connection of the tubular cabin 1 and has a threaded through hole B12. The hatch 4 has a matching connecting through hole B13 corresponding to the threaded through hole B12. The connecting through hole B13 is located within the area enclosed by the sealing ring 9. After the hatch 4 is locked and fixed to the connecting ring 3, the pressure relief bolt 31 passes through the connecting through hole B13 from the outside to the inside and is connected to the threaded through hole B12. The sealing sleeve A15, which is fitted and fixed on the surface of the pressure relief bolt 31, is pressed and sealed between the nut 19 of the pressure relief bolt 31 and the hatch 4.

[0038] Both the locking bolt 14 and the pressure relief bolt 31 include a rod 17 coaxially connected to the nut 19. A screw A16 is coaxially provided at the end of the rod 17 away from the nut 19, and a shaft 18 is coaxially provided at the end of the rod 17 connected to the nut 19. The minor diameter of the screw A16 is larger than the diameter of the rod 17, and the sealing sleeve A15 is sleeved and connected to the shaft 18.

[0039] The diameter of the shaft 18 of the locking bolt 14 is less than or equal to the inner diameter of the connecting through hole A11, and the diameter of the shaft 18 of the pressure relief bolt 31 is less than or equal to the inner diameter of the connecting through hole B13.

[0040] The axial length between the screw A16 and the sealing sleeve A15 is less than the axial distance between the end face of the hatch 4 facing away from the connecting ring 3 and the end face of the connecting ring 3 facing the hatch 4 when the hatch 4 and the connecting ring 3 are locked and fixed.

[0041] Both the threaded through hole A10 and the threaded through hole B12 are the inner holes of the sealing tube 20, and the sealing tube 20 is sealed and fixed to the sealing hole 21 provided in the connecting ring 3.

[0042] The sealing tube 20 is located inside the tubular cabin 1. One end of the sealing tube extends outward from the connecting ring 3 and is provided with a connecting flange 22. The fixing bolt 25 passes through the connecting through hole C23 provided in the connecting flange 22 and is fixedly connected to the threaded groove B24 provided in the corresponding connecting ring 3.

[0043] A sealing washer 27 is provided coaxially between the connecting flange 22 and the connecting ring 3, corresponding to the position of the fixing bolt 25.

[0044] A sealing sleeve B26 is coaxially fitted and fixed between the sealing tube 20 and the sealing hole 21.

[0045] The end plate 2 and the annular plate 3 are fixedly connected on the outside of the tubular cabin 1 by connecting rods 5. The connecting rods 5 are evenly distributed around the axis of the tubular cabin 1, and each connecting rod 5 is arranged parallel to the axis of the tubular cabin 1.

[0046] The locking device includes a latch 7 fixed to the edge of the connecting ring 3 and a locking ring 8 fixed to the hatch 4 that matches the latch 7. The latch 7 and the locking ring 8 are respectively located on the other side of the opposite hinge 6.

[0047] The locking bolts 14 are symmetrically distributed between two adjacent connecting rods 5.

[0048] Example

[0049] Combination Figure 1 , Figures 6-9It is known that the manual interlocking device for the door of the pet oxygen therapy chamber includes a tubular chamber body 1 of the pet oxygen therapy chamber. One end of the tubular chamber body 1 is sealed and fixed with a coaxially arranged end plate 2, and the other end is sealed and fixed with a coaxially arranged connecting ring 3. One side of the connecting ring 3 is sway-connected to a door 4 via a hinge 6. The door 4 is locked and fixed to the connecting ring 3 by a locking device. The end face of the door 4 that contacts the connecting ring 3 is coaxially fixed with a sealing ring 9 corresponding to the middle of the connecting ring 3. The locking device includes a latch 7 fixed to the edge of the connecting ring 3 and a locking ring 8 fixed to the door 4 that matches the latch 7. It also includes multiple locking bolts 14. The connecting ring 3 is located on the outside of the tubular chamber body 1 and has multiple threaded through holes that match the locking bolts 14. A10, the hatch 4 is located outside the sealing ring 9 and has a matching connecting through hole A11 corresponding to the threaded through hole A10. Each locking bolt 14 passes through the connecting through hole A11 and is connected and locked to the threaded through hole A10. The connecting ring 3 is located inside the connection of the tubular cabin 1 and has a threaded through hole B12. The hatch 4 has a matching connecting through hole B13 corresponding to the threaded through hole B12. The connecting through hole B13 is located within the area enclosed by the sealing ring 9. After the hatch 4 is locked and fixed to the connecting ring 3, the pressure relief bolt 31 passes through the connecting through hole B13 from the outside to the inside and is connected to the threaded through hole B12. The sealing sleeve A15, which is fitted and fixed on the surface of the pressure relief bolt 31, is pressed and sealed between the nut 19 of the pressure relief bolt 31 and the hatch 4.

[0050] Both the locking bolt 14 and the pressure relief bolt 31 include a rod 17 coaxially connected to the nut 19. A screw A16 is coaxially provided at the end of the rod 17 away from the nut 19, and a shaft 18 is coaxially provided at the end of the rod 17 connected to the nut 19. The minor diameter of the screw A16 is larger than the diameter of the rod 17, and the sealing sleeve A15 is sleeved and connected to the shaft 18.

[0051] The diameter of the shaft 18 of the locking bolt 14 is less than or equal to the inner diameter of the connecting through hole A11, and the diameter of the shaft 18 of the pressure relief bolt 31 is less than or equal to the inner diameter of the connecting through hole B13.

[0052] The axial length between the screw A16 and the sealing sleeve A15 is less than the axial distance between the end face of the hatch 4 facing away from the connecting ring 3 and the end face of the connecting ring 3 facing the hatch 4 when the hatch 4 and the connecting ring 3 are locked and fixed.

[0053] The shaft 18 has a threaded groove A29 on the center of its end face facing the rod body 17. The rod body 17 has a screw B28 that matches the threaded groove A29 at one end facing the shaft 18. The inner wall of the sealing sleeve A15 facing the rod body 17 has a limiting protrusion ring, and the inner diameter of the limiting protrusion ring is greater than or equal to the diameter of the rod body 17.

[0054] When the screw B28 of the rod 17 is fully threadedly connected to the threaded groove A29 of the shaft 18, the pin hole A on the side wall of the shaft 18 and the pin hole B on the screw B28 are matched accordingly, and the positioning pin 30 passes through the pin hole A and the pin hole B respectively to fix the rod 17 and the shaft 18 circumferentially.

[0055] Both the threaded through hole A10 and the threaded through hole B12 are the inner holes of the sealing tube 20, and the sealing tube 20 is sealed and fixed to the sealing hole 21 provided in the connecting ring 3.

[0056] The sealing tube 20 is located inside the tubular cabin 1. One end of the sealing tube extends outward from the connecting ring 3 and is provided with a connecting flange 22. The fixing bolt 25 passes through the connecting through hole C23 provided in the connecting flange 22 and is fixedly connected to the threaded groove B24 provided in the corresponding connecting ring 3.

[0057] A sealing washer 27 is provided coaxially between the connecting flange 22 and the connecting ring 3, corresponding to the position of the fixing bolt 25.

[0058] A sealing sleeve B26 is coaxially fitted and fixed between the sealing tube 20 and the sealing hole 21.

[0059] The end plate 2 and the annular plate 3 are fixedly connected on the outside of the tubular cabin 1 by connecting rods 5. The connecting rods 5 are evenly distributed around the axis of the tubular cabin 1, and each connecting rod 5 is arranged parallel to the axis of the tubular cabin 1.

[0060] The locking device includes a latch 7 fixed to the edge of the connecting ring 3 and a locking ring 8 fixed to the hatch 4 that matches the latch 7. The latch 7 and the locking ring 8 are respectively located on the other side of the opposite hinge 6.

[0061] The locking device includes multiple locking bolts 14. The connecting ring 3 is located on the outside of the tubular cabin 1 and has multiple threaded through holes A10 that match the locking bolts 14. The cabin door 4 is located on the outside of the sealing ring 9 and has a matching connecting through hole A11 corresponding to the threaded through hole A10. The locking bolts 14 pass through the threaded through hole A10 and the connecting through hole A11 respectively and are locked and fixed by locking nuts.

[0062] The locking bolts 14 are symmetrically distributed between two adjacent connecting rods 5.

[0063] The two embodiments described above operate in the same way. After the door 4 and the connecting ring 3 are locked and fixed, the pressure relief bolt 31 is inserted from the outside into the connecting through hole B13 of the door 4 and connected to the corresponding threaded through hole B12. The pressure relief bolt 31 is then tightened until the sealing sleeve A15 is pressed and fixed to seal the connecting through hole B13. Then, high-pressure oxygen can be introduced into the pet oxygen chamber for high-pressure oxygen therapy to the pet. After the treatment is completed, the pressure relief bolt 31 is tightened until there is a gap between the sealing sleeve A15 and the door 4 at the position corresponding to the connecting through hole B13, so that the high-pressure oxygen in the pet oxygen chamber can be depressurized. After the depressurization is completed, the door 4 and the connecting ring 3 are opened.

Claims

1. A manual interlocking device for the door of a pet oxygen therapy chamber, characterized in that: The device includes a tubular chamber (1) for pet oxygen therapy. One end of the tubular chamber (1) is sealed and fixed with a coaxially arranged end plate (2), and the other end is sealed and fixed with a coaxially arranged connecting ring (3). One side of the connecting ring (3) is swayed and connected to a door (4) via a hinge (6). The door (4) is locked and fixed to the connecting ring (3) by a locking device. The end face of the door (4) that contacts the connecting ring (3) is coaxially fixed with a sealing ring (9) corresponding to the middle of the connecting ring (3). The locking device includes a latch (7) fixed to the edge of the connecting ring (3) and a locking ring (8) fixed to the door (4) that matches the latch (7). It also includes multiple locking bolts (14). The connecting ring (3) is located on the outside of the tubular chamber (1) and has multiple threaded through holes A (10) that match the locking bolts (14). The door (4) A matching connecting through hole A (11) is provided on the outside of the sealing ring (9) corresponding to the threaded through hole A (10). Each locking bolt (14) passes through the connecting through hole A (11) and is connected and locked to the threaded through hole A (10). The connecting ring (3) is provided on the inside of the connection of the tubular cabin (1) with a threaded through hole B (12). The hatch (4) is provided with a matching connecting through hole B (13) corresponding to the threaded through hole B (12). The connecting through hole B (13) is located within the area enclosed by the sealing ring (9). After the hatch (4) is locked and fixed to the connecting ring (3), the pressure relief bolt (31) passes through the connecting through hole B (13) from the outside to the inside and is connected to the threaded through hole B (12). The sealing sleeve A (15) fitted and fixed on the surface of the pressure relief bolt (31) is pressed and sealed between the nut (19) of the pressure relief bolt (31) and the hatch (4).

2. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 1, characterized in that: Both the locking bolt (14) and the pressure relief bolt (31) include a rod (17) coaxially connected to the nut (19). The end of the rod (17) away from the nut (19) is coaxially provided with a screw A (16). The end of the rod (17) connected to the nut (19) is coaxially provided with a shaft (18). The minor diameter of the screw A (16) is larger than the diameter of the rod (17). The sealing sleeve A (15) is sleeved and connected to the shaft (18).

3. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 2, characterized in that: The diameter of the shaft (18) of the locking bolt (14) is less than or equal to the inner diameter of the connecting through hole A (11), and the diameter of the shaft (18) of the pressure relief bolt (31) is less than or equal to the inner diameter of the connecting through hole B (13).

4. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 2, characterized in that: The axial length between the screw A (16) and the sealing sleeve A (15) is less than the axial distance between the end face of the hatch (4) facing away from the connecting ring (3) and the end face of the connecting ring (3) facing the hatch (4) when the hatch (4) and the connecting ring (3) are locked and fixed.

5. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 2, characterized in that: The shaft (18) has a threaded groove A (29) at the center of the end face facing the rod body (17). The rod body (17) has a screw B (28) that matches the threaded groove A (29) at one end facing the shaft (18). The inner wall of the sealing sleeve A (15) facing the rod body (17) has a limiting protrusion ring, and the inner diameter of the limiting protrusion ring is greater than or equal to the diameter of the rod body (17).

6. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 5, characterized in that: When the screw B (28) of the rod (17) is fully threadedly connected to the threaded groove A (29) of the shaft (18), the pin hole A on the side wall of the shaft (18) and the pin hole B on the screw B (28) are matched accordingly, and the positioning pin (30) passes through the pin hole A and the pin hole B respectively to fix the rod (17) and the shaft (18) circumferentially.

7. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 1, characterized in that: The threaded through hole A (10) and the threaded through hole B (12) are both inner holes of the sealing tube (20), and the sealing tube (20) is sealed and fixed to the sealing hole (21) provided by the connecting ring (3).

8. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 7, characterized in that: The sealing tube (20) is located inside the tubular cabin (1). One end of the tube extends outward from the connecting ring (3) and is provided with a connecting flange (22). The fixing bolt (25) passes through the connecting through hole C (23) provided by the connecting flange (22) and is fixedly connected to the threaded groove B (24) provided by the connecting ring (3).

9. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 8, characterized in that: A sealing washer (27) is provided coaxially between the connecting flange (22) and the connecting ring (3) at the position corresponding to the fixing bolt (25).

10. The manual interlocking device for the door of the pet oxygen therapy chamber as described in claim 7, characterized in that: A sealing sleeve B (26) is coaxially fitted and fixed between the sealing tube (20) and the sealing hole (21).

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