Airtight observation treatment window

Abstract

An airtight observation treatment window belongs to the field of observation windows and comprises a window frame, an observation opening and a through groove are formed in the window frame, observation glass is fixedly installed in the observation window, a sealing plate rotatably installed on the window frame is arranged on one side of the through groove, the sealing plate and the window frame are connected in a matched mode through a locking mechanism, and two annular grooves are formed in the side, facing the window frame, of the sealing plate. Moving rings are installed in the annular grooves in a sliding mode, rubber sealing rings are arranged on the side faces, facing the window frame, of the moving rings, the moving rings are connected with the corresponding annular grooves through tension springs, and driving mechanisms for driving the moving rings to move towards the window frame are arranged on the sealing plates. The sealing plate is simple in structure and ingenious in conception, by arranging the two sets of rubber sealing rings which can be used in turn, the good sealing effect of the sealing plate is kept, the situation that the sealing effect is reduced due to plastic deformation caused by long-time extrusion of a single rubber sealing ring is reduced, market requirements can be met, and the sealing plate is suitable for popularization.

Description

Technical Field

[0001] The invention belongs to the field of observation windows, in particular to an airtight observation and treatment window. Background Art

[0002] Medical observation windows can be used for medical observation as well as as channels for delivering medicines, food, injections, blood draws, examinations, etc. In order to reduce the impact of the external environment on the interior of the medical room or reduce gas leakage, it is necessary to frequently switch between the sealed state and the open state. Since the observation window needs to be closed for a long time, the sealing rubber strip is squeezed for a long time and is easily deformed, resulting in reduced airtightness. The rubber strip needs to be replaced. If it is not discovered in time, the sealing effect of the medical observation window will be affected. To solve the above problems, we have invented an airtight observation and treatment window. Summary of the invention

[0003] The present invention provides an airtight observation and treatment window to solve the defects in the prior art.

[0004] The present invention is achieved through the following technical solutions: An airtight observation and treatment window comprises a window frame, an observation port and a through groove are provided on the window frame, an observation glass is fixedly installed in the observation window, a sealing plate rotatably installed on the window frame is provided on one side of the through groove, the sealing plate and the window frame are cooperatively connected by a locking mechanism, two annular grooves are provided on the side of the sealing plate facing the window frame, a moving ring is slidably installed in the annular groove, a rubber sealing ring is provided on the side of the moving ring facing the window frame, the moving ring is connected to the corresponding annular groove by a tension spring, and a driving mechanism for driving the moving ring to move toward the window frame is provided on the sealing plate.

[0005] An airtight observation and treatment window as described above, wherein the driving mechanism includes a driving shaft, which is rotatably mounted on a sealing plate, on which several screw rods are rotatably mounted, the screw rods being evenly distributed along the circumference of the driving shaft, the screw rods having threads thereon for fitting with a nut, the nut being slidably mounted on the sealing plate, a wedge-shaped push block being fixedly mounted on the side of the nut, the sides of the wedge-shaped push block being away from and close to the driving shaft being guide slopes respectively, push rods being respectively provided on the sides of the guide slopes, sockets being respectively provided on the sealing plate corresponding to the push rods, the sockets being respectively connected with the corresponding annular grooves, the push rods being movably located in the corresponding sockets, one end of the push rod being fixedly connected with the corresponding movable ring, and the other end being capable of slidingly contacting and cooperating with the corresponding guide slope, the screw rods being respectively transmission-connected with the corresponding driving shafts.

[0006] In an airtight observation and treatment window as described above, the screw is a reciprocating screw, and two conical gear rings are movably mounted on the driving shaft. The two conical gear rings are rotatably connected to the driving shaft through one-way bearings respectively. The two conical gear rings are symmetrically distributed on the left and right, and the damping directions of the two one-way bearings are opposite. The two conical gear rings are meshed and transmitted through several bevel gears. The side surface of each bevel gear is fixedly connected to one end of a coaxial support shaft, and the support shaft is rotatably mounted on a sealing plate, and the other end of the support shaft is fixedly connected to the corresponding screw.

[0007] An airtight observation and treatment window as described above, wherein the sealing plate is composed of a vertical plate on the left and a protective box on the right, the vertical plate is fixed on the protective box to form a cavity inside the protective box, a reserved hole is provided on the protective box, the drive shaft is rotatably installed in the reserved hole through a sealed bearing, two limit rods are fixedly installed on the protective box, and a handle is fixedly installed on the drive shaft.

[0008] As described above, an airtight observation and treatment window is provided on the vertical plate, a dovetail groove is provided in which a dovetail slider is slidably installed, the dovetail slider is connected to the vertical plate by a spring, an insertion rod is fixedly installed on the dovetail slider, a slot corresponding to the insertion rod is provided on the window frame, the insertion rod is plugged into the slot, a reserved groove is provided on the vertical plate, one end of the driving shaft passes through the reserved groove and a cam is fixedly installed, and the lower end of the insertion rod is in sliding contact with the outer periphery of the cam.

[0009] In the airtight observation and treatment window as described above, the top of the cam is a plane.

[0010] In the airtight observation and treatment window as described above, a spherical rubber protrusion is provided on the side of the rubber sealing ring close to the movable ring, a slot is provided on the movable ring corresponding to the rubber protrusion, and the rubber protrusion is connected with the slot by snap-fitting.

[0011] The advantages of the present invention are: the present invention has a simple structure and an ingenious design. By arranging two groups of rubber sealing rings that can be used in turn, the sealing plate maintains a good sealing effect, and the plastic deformation of a single rubber sealing ring caused by long-term extrusion is reduced, which leads to a reduction in the sealing effect. The present invention can meet market demand and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Left view of Figure 3 It is the left side view of the sealing plate; Figure 4 is a schematic diagram of a first use state of the present invention; Figure 5 is a schematic diagram of a second use state of the present invention; Figure 6 It is a schematic diagram of the cooperation between the cam and the plunger; Figure 7 is a right side view of the sealing plate; Figure 8 yes Figure 1 A partial enlarged view of location Ⅰ; Fig. 9 yes Figure 4 A partial enlarged view of location II; Fig.10 yes Figure 5 A partial enlarged view of location III.

[0014] : 1. window frame, 2. observation port, 3. through groove, 4. observation glass, 5. annular groove, 6. movable ring, 7. rubber sealing ring, 8. tension spring, 9. sealing plate, 20. driving shaft, 21. screw, 22. nut, 23. wedge-shaped push block, 24. guide ramp, 25. push rod, 26. jack, 30. conical gear ring, 31. conical gear, 32. support shaft, 40. protective box, 41. vertical plate, 42. reserved hole, 43. limit rod, 44. handle, 50. dovetail slide groove, 51. dovetail slider, 52. spring, 53. plug rod, 54. slot, 55. reserved groove, 56. cam, 71. rubber protrusion, 72. slot. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] An airtight observation treatment window, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10As shown, it includes a window frame 1, an observation port 2 and a through groove 3 are provided on the window frame 1, an observation glass 4 is fixedly installed in the observation window 2, the observation glass 4 is a tempered glass, the tempered glass is sealed and installed in the observation port 2, and the observation port 2 is sealed, a sealing plate 9 rotatably installed on the window frame 1 is provided on one side of the through groove 3, the sealing plate 9 and the window frame 1 are rotatably connected through a hinge shaft, and the hinge shaft is located below the sealing plate 9, the sealing plate 9 and the window frame 1 are connected through a locking mechanism, and two annular grooves 5 are provided on the side of the sealing plate 9 facing the window frame 1, and the two annular grooves 5 are respectively coaxially arranged with the through groove 3, and the annular grooves 5 are Rectangular ring shape, two annular grooves 5, one large and one small, the small annular groove 5 is located inside the large annular groove 5, a moving ring 6 is slidably installed in the annular groove 5, the side of the moving ring 6 is in airtight sliding contact with the side corresponding to the annular groove 5, a rubber sealing ring 7 is provided on the side of the moving ring 6 facing the window frame 1, the moving ring 6 is connected to the corresponding annular groove 5 by a tension spring 8, the tension spring 8 is located on the side of the moving ring 6 away from the rubber sealing ring 7, one end of the tension spring 8 is fixedly connected to the moving ring 6, and the other end is fixedly connected to the side wall of the annular groove 5, and a driving mechanism for driving the moving ring 6 to move toward the window frame 1 is provided on the sealing plate 9. The present invention has a simple structure and an ingenious design. By setting two groups of rubber sealing rings 7 that can be used in turn, the sealing plate 9 maintains a good sealing effect, reduces the plastic deformation of a single rubber sealing ring due to long-term extrusion, and reduces the sealing effect. It can meet market demand and is suitable for promotion. When using the treatment window of this project, medical observation is carried out through the observation glass 4 and the observation window 2. When it is necessary to deliver medicines, food, or give injections, draw blood, or conduct examinations, the limit on the sealing plate 9 is released through the locking mechanism, and the sealing plate 9 can be rotated and opened along the hinge axis between the sealing plate 9 and the window frame 1. When the sealing plate 9 is closed, the sealing plate 9 and the window frame 1 are relatively locked by the locking mechanism. At this time, the driving mechanism is used to drive one of the moving rings 6 to drive the rubber sealing ring 7 to move toward the window frame 1, so that the rubber sealing ring 7 enters a sealed state, and the other rubber sealing ring 7 enters a non-sealed state; the driving mechanism is used to control the two rubber sealing rings 7 to enter a sealed state in turn, so as to avoid the rubber sealing ring 7 being squeezed for a long time and causing plastic deformation, which leads to a reduction in the sealing effect.

[0017] Specifically, if Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10As shown, the driving mechanism described in this embodiment includes a driving shaft 20, which is coaxially arranged with the annular groove 5. The driving shaft 20 is rotatably mounted on the sealing plate 9, and a plurality of screw rods 21 are rotatably mounted on the sealing plate 9. The screw rods 21 are evenly distributed along the circumference of the driving shaft 20, and the axes of the screw rods 21 are perpendicular to and intersect with the axes of the driving shaft 20. In this embodiment, four screw rods 21 are provided, which are sequentially located at four positions of the driving shaft 20, the upper and lower front and rear. A nut 22 is threadedly mounted on the screw rod 21, and the nut 22 is slidably mounted on the sealing plate 9. A strip groove is provided on the sealing plate 9, and a slider is slidably mounted in the strip groove. The slider is fixedly connected to the nut 22. When the nut 22 moves axially along the screw rod 21, the slider slides along the strip groove to prevent the nut 22 from rotating with the screw rod 21. A wedge-shaped push block 23 is fixedly installed on the side, and the sides of the wedge-shaped push block 23 away from and close to the drive shaft 20 are respectively guide bevels 24. The guide bevel 24 close to the drive shaft 20 is the inner guide bevel 24, and the guide bevel 24 away from the drive shaft 20 is the outer guide bevel 24. Push rods 25 are respectively arranged on the sides of the guide bevels 24. Plug holes 26 are respectively opened on the sealing plate 9 corresponding to the push rods 25. The plug holes 26 are respectively connected with the corresponding annular grooves 5. The push rods 25 are movably located in the corresponding plug holes 26. The outer periphery of the push rod 25 is in airtight sliding contact with the inner periphery of the plug hole 26. One end of the push rod 25 is fixedly connected to the corresponding movable ring 6, and the other end can be in sliding contact with the corresponding guide bevel 24. The screw rods 21 are respectively connected to the corresponding drive shafts 20 in transmission connection.When the drive shaft 20 is rotated, the drive shaft 20 drives the screw rod 21 to rotate. Since the nut 22 cannot rotate with the screw rod 21, the nut 22 moves axially along the screw rod 21, and the nut 22 drives the wedge-shaped push block 23 to move. When the wedge-shaped push block 23 moves outward away from the drive shaft 20, the outer guide slope 24 can push the corresponding push rod 25, and the push rod 25 slides along the guide slope 24. The push rod 25 drives the outer moving ring 6 and the rubber sealing ring 7 to move to the left, and the rubber sealing ring 7 moves out of the annular groove 5, pulling The spring 8 is stretched and stores energy, and the outer rubber sealing ring 7 is squeezed between the window frame 1 and the moving ring 6. The rubber sealing ring 7 is squeezed and elastically deformed, and the annular groove 5 between the window frame 1 and the moving ring 6 is filled with the rubber sealing ring 7 to form a seal, and the rubber sealing ring 7 enters a sealed state, and the sealing plate 9 and the window frame 1 are sealed by the outer rubber sealing ring 7; when the wedge-shaped push block 23 moves inwardly again close to the drive shaft 20, the outer guide inclined surface 24 gradually separates from the corresponding push rod 25, and the outer rubber sealing ring 7 and the moving ring 6 are reset to the right under the elastic tension of the tension spring 8, until all the push rods 25 are separated from the corresponding guide inclined surfaces 24, and the wedge-shaped push block 23 is located between the corresponding two push rods 25. At this time, the two rubber sealing rings 7 are respectively retracted into the corresponding annular grooves 5, and the sealing plate 9 and the window frame 1 are no longer sealed by the rubber sealing ring 7, and enter a non-sealed state; when the wedge-shaped push block 23 continues to move inward, the inner guide inclined surface 24 and the corresponding push rod 25 gradually come into contact and cooperate, thereby pushing The inner movable ring 6 and rubber sealing ring 7 move to the left, the rubber sealing ring 7 moves out of the annular groove 5, the tension spring 8 is stretched to store energy, the inner rubber sealing ring 7 is squeezed between the window frame 1 and the movable ring 6, and the sealing plate 9 and the window frame 1 are sealed by the inner rubber sealing ring 7; the wedge-shaped push block 23 moves outward again to release the seal of the rubber sealing ring 7, and the inner rubber sealing ring 7 and the outer rubber sealing ring 7 are used alternately to avoid the rubber sealing ring 7 on one side being squeezed for a long time and causing elastic deformation.

[0018] Specifically, Figure 1 , Figure 4 , Figure 5 , Figure 8 , Fig. 9 , Fig.10As shown, the screw 21 described in this embodiment is a reciprocating screw, and two conical gear rings 30 are movably mounted on the driving shaft 20. The two conical gear rings 30 are rotatably connected to the driving shaft 20 through one-way bearings respectively. The conical gear rings 30, the driving shaft 20 and the one-way bearings are coaxially arranged, and the outer ring of the one-way bearing is fixedly connected to the inner circumference of the corresponding conical gear ring 30. The inner ring of the one-way bearing is fixedly connected to the outer circumference of the driving shaft 20. The two conical gear rings 30 are symmetrically distributed on the left and right, and the damping directions of the two one-way bearings are opposite. The two conical gear rings 30 are meshed and transmitted through a plurality of conical gears 31. The gears 31 are meshed with the bevel gear rings 30 on both sides. The bevel gears 31 are evenly distributed along the axis of the bevel gear rings 30. In the present embodiment, four bevel gears 31 are provided. The four bevel gears 31 are sequentially located at the upper, lower, front and rear positions of the drive shaft 20. The side surfaces of each bevel gear 31 are respectively fixedly connected to one end of a coaxial support shaft 32. The bevel gear 31 is coaxially arranged with the corresponding support shaft 32. The support shaft 32 is rotatably mounted on the sealing plate 9. The other end of the support shaft 32 is fixedly connected with the corresponding screw rod 21. The support shaft 32 is coaxially arranged with the corresponding screw rod 21. When the drive shaft 20 rotates forward, the right-side bevel gear ring 30 is driven to rotate forward through the one-way bearing, and the left-side bevel gear ring 30 cannot be driven to rotate forward through the one-way bearing. Since the right-side bevel gear ring 30 and the left-side bevel gear ring 30 are meshed and transmitted through the bevel gear 31, the left-side bevel gear ring 30 rotates reversely, and the bevel gear 31 rotates forward; when the drive shaft 20 rotates reversely, the left-side bevel gear ring 30 is driven to rotate reversely through the one-way bearing, and the right-side bevel gear ring 30 cannot be driven to rotate reversely through the one-way bearing. Since the right-side bevel gear ring 30 and the left-side bevel gear ring 30 are meshed and transmitted through the bevel gear 31, the right-side bevel gear ring 30 rotates forward, and the bevel gear 31 rotates forward. Therefore, when the drive shaft 20 rotates forward or reversely, the bevel gear 31 rotates forward, and the bevel gear 31 drives the support shaft 32 and the corresponding screw rod when the bevel gear 31 rotates forward. 21 rotates, and the nut 22 moves reciprocatingly axially along the screw rod 21; the driving shaft 20 rotates forward by ninety degrees, and the nut 22 moves from one end of the screw rod 21 to the middle of the screw rod 21, and the rubber sealing ring 7 on one side changes from a sealed state to a non-sealed state; the driving shaft 20 rotates reversely by ninety degrees again, and the nut 22 moves from the middle of the screw rod 21 to the other end of the screw rod 21, and the rubber sealing ring 7 on the other side changes from a non-sealed state to a sealed state; the driving shaft 20 rotates forward by ninety degrees again, and the nut 22 moves from the other end of the screw rod 21 to the middle of the screw rod 21, and the rubber sealing ring 7 on the other side changes from a sealed state to a non-sealed state; the driving shaft 20 rotates reversely by ninety degrees again, and the nut 22 moves from the middle of the screw rod 21 to one end of the screw rod 21, and the rubber sealing ring 7 on one side changes from a non-sealed state to a sealed state, that is, the driving shaft 20 continuously rotates forward and reverse by ninety degrees, and the above process is continuously cycled.

[0019] Further, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 8 , Fig. 9 , Fig.10 As shown, the sealing plate 9 described in this embodiment is composed of a vertical plate 41 on the left and a protective box 40 on the right. The vertical plate 41 is fixed on the protective box 40, so that a cavity is formed inside the protective box 40. The support shaft 32, the conical gear ring 30, the conical gear 31, the screw rod 21, the screw nut 22, and the wedge-shaped push block 23 are all located in the cavity to reduce the influence of transmission between each other. A reserved hole 42 is provided on the protective box 40, and the drive shaft 20 is rotatably installed in the reserved hole 42 through a sealed bearing. Two limit rods 43 are fixedly installed on the protective box 40, and a handle 44 is fixedly installed on the drive shaft 20. The handle 44 can rotate ninety degrees between the two limit rods 43 along the axis of the drive shaft 20, so as to facilitate the control of the drive shaft 20 to rotate exactly ninety degrees each time.

[0020] Furthermore, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10As shown, in this embodiment, a dovetail groove 50 is provided on the vertical plate 41, and a dovetail slider 51 is slidably installed in the dovetail groove 50. The dovetail slider 51 can only slide up and down along the dovetail groove 50. The dovetail slider 51 is connected to the vertical plate 41 by a spring 52. A plug rod 53 is fixedly installed on the dovetail slider 51. A slot 54 corresponding to the plug rod 53 is provided on the window frame 1. The plug rod 53 is plugged into the slot 54. A reserved groove 55 is provided on the vertical plate 41. One end of the drive shaft 20 passes through the reserved groove 55 and a cam 56 is fixedly installed. The cam 56 is located below the plug rod 53, and the lower end of the plug rod 53 is in sliding contact with the outer periphery of the cam 56. When the drive shaft 20 is turned by the handle 44, the drive shaft 20 drives the cam 56 to rotate, and the lower end of the plug rod 53 slides along the outer periphery of the cam 56. When the handle 44 vertically abuts and contacts with the limit rod 43 on one side, the highest point of the cam 56 abuts and contacts with the lower end of the plug rod 53, and the plug rod 53 is lifted up. The plug rod 53 drives the dovetail slider 51 to slide upward along the dovetail slot 50, and the spring 52 is stretched, and the upper end of the plug rod 53 is inserted into the slot 54, forming a locking mechanism to fix the sealing plate 9 on the window frame 1; when the drive shaft 20 is rotated in the opposite direction, until the handle 44 horizontally abuts and contacts with the limit rod 43 on the other side, the lowest point of the cam 56 abuts and contacts with the plug rod 53. The lower end of the rod 53 is in contact with each other, and the rod 53 moves downward and resets under the elastic pulling force of the spring 52. The rod 53 is removed from the slot 54, and the lock is released. The sealing plate 9 can be rotated and opened relative to the window frame 1, so that the rubber sealing ring 7 can be automatically replaced to enter the sealing state every time the sealing plate 9 is opened. After the upper end of the rod 53 begins to be inserted into the slot 54, the rubber sealing ring 7 is removed from the annular groove 5. As the upper end of the rod 53 is completely inserted into the slot 54, the rubber sealing ring 7 stops being removed from the annular groove 5, that is, the sealing plate 9 is first closed and self-locked, and then the rubber sealing ring 7 is used for sealing, thereby reducing the resistance of the sealing plate 9 to closing and self-locking.

[0021] Furthermore, Figure 1 , Figure 4 , Figure 5As shown, the top of the cam 56 described in this embodiment is a plane. When the plane at the top of the cam 56 contacts and cooperates with the plane at the lower end of the plug rod 53, the stability of the cam 56 can be increased, the sealing plate 9 is kept locked, and the cam 56 is prevented from rotating under the thrust of the plug rod 53; when the plane at the top of the cam 56 no longer coincides with the plane at the lower end of the plug rod 53, under the elastic tension of the spring 52, the plug rod 53 pushes the cam 56 downward, gradually contacts and cooperates with the lowest point of the cam 56, so that the handle 44 returns to the horizontal direction, and then the user is prompted to close the sealing plate 9, so that the handle 44 is vertical and aligned with the limit rod. 43 is in abutment and contact with each other, otherwise, the insertion rod 53 is automatically moved out of the slot 54, and when the handle 44 is vertical and in abutment and contact with the limit rod 43, the insertion rod 53 can rotate along the hinge axis between the sealing plate 9 and the window frame 1 with the sealing plate 9. If the handle 44 is not in a vertical position and in abutment and contact with the limit rod 43, when the insertion rod 53 rotates with the sealing plate 9, the upper end of the insertion rod 53 interferes with the window frame 1, and the insertion rod 53 cannot rotate with the sealing plate 9, and the sealing plate 9 cannot be opened at this time; therefore, the user is prompted to rotate ninety degrees each time the handle 44 is turned.

[0022] Furthermore, Figure 1 , Figure 4 , Figure 5 , Figure 8 , Fig. 9 , Fig.10 As shown, the rubber sealing ring 7 of this embodiment is provided with a spherical rubber protrusion 71 on one side close to the moving ring 6, and a clamping groove 72 is provided on the moving ring 6 corresponding to the rubber protrusion 71, and the rubber protrusion 71 is connected by clamping fit with the clamping groove 72. The rubber sealing ring 7 and the moving ring 6 are connected by the clamping fit of the rubber protrusion 71 and the clamping groove 72, so that the rubber sealing ring 7 can be removed from the moving ring 6, the rubber protrusion 71 can be pulled out of the clamping groove 72, and the rubber protrusion 71 undergoes elastic deformation, so that the rubber sealing ring 7 is easily replaced.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention 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 embodiments of the present invention.

Claims

1. An airtight observation treatment window, comprising a window frame (1), an observation port (2) and a through groove (3) being provided on the window frame (1), an observation glass (4) being fixedly installed in the observation window (2), a sealing plate (9) being rotatably mounted on the window frame (1) being provided on one side of the through groove (3), the sealing plate (9) being cooperatively connected to the window frame (1) via a locking mechanism, characterized in that: Two annular grooves (5) are formed on the side of the sealing plate (9) facing the window frame (1), a movable ring (6) is slidably mounted in the annular groove (5), a rubber sealing ring (7) is provided on the side of the movable ring (6) facing the window frame (1), the movable ring (6) and the corresponding annular groove (5) are connected via a tension spring (8), and a driving mechanism for driving the movable ring (6) to move toward the window frame (1) is provided on the sealing plate (9).

2. The airtight observation and treatment window according to claim 1, characterized in that: The driving mechanism comprises a driving shaft (20), the driving shaft (20) being rotatably mounted on a sealing plate (9), a plurality of screw rods (21) being rotatably mounted on the sealing plate (9), the screw rods (21) being evenly distributed along the circumference of the driving shaft (20), a screw nut (22) being mounted on the screw rod (21) in a threaded manner, the screw nut (22) being slidably mounted on the sealing plate (9), a wedge-shaped push block (23) being fixedly mounted on a side of the screw nut (22), the side of the wedge-shaped push block (23) being away from and close to the driving shaft (20) being respectively a guide inclined plate The guide inclined surface (24) is provided with a push rod (25) on the side surface of each guide inclined surface (24). The sealing plate (9) is provided with a plug hole (26) corresponding to the push rod (25). The plug hole (26) is connected to the corresponding annular groove (5). The push rod (25) is movably located in the corresponding plug hole (26). One end of the push rod (25) is fixedly connected to the corresponding movable ring (6), and the other end can be slidably contacted with the corresponding guide inclined surface (24). The screw rod (21) is respectively connected to the corresponding drive shaft (20) in a transmission manner.

3. The airtight observation and treatment window according to claim 2, characterized in that: The screw (21) is a reciprocating screw. Two conical gear rings (30) are movably mounted on the drive shaft (20). The two conical gear rings (30) are rotatably connected to the drive shaft (20) via one-way bearings. The two conical gear rings (30) are symmetrically distributed on the left and right, and the damping directions of the two one-way bearings are opposite. The two conical gear rings (30) are meshed and transmitted via a plurality of conical gears (31). The side surface of each conical gear (31) is fixedly connected to one end of a coaxial support shaft (32). The support shaft (32) is rotatably mounted on the sealing plate (9). The other end of the support shaft (32) is fixedly connected to the corresponding screw (21).

4. The airtight observation and treatment window according to claim 3, characterized in that: The sealing plate (9) is composed of a vertical plate (41) on the left and a protection box (40) on the right. The vertical plate (41) is fixed to the protection box (40) so that a cavity is formed inside the protection box (40). A reserved hole (42) is provided on the protection box (40). The drive shaft (20) is rotatably mounted in the reserved hole (42) via a sealing bearing. Two limit rods (43) are fixedly mounted on the protection box (40), and a handle (44) is fixedly mounted on the drive shaft (20).

5. The airtight observation and treatment window according to claim 4, characterized in that: The vertical plate (41) is provided with a dovetail groove (50), a dovetail slider (51) is slidably installed in the dovetail groove (50), the dovetail slider (51) is connected to the vertical plate (41) via a spring (52), a plug rod (53) is fixedly installed on the dovetail slider (51), a slot (54) corresponding to the plug rod (53) is provided on the window frame (1), the plug rod (53) and the slot (54) are plugged into each other, a reserved groove (55) is provided on the vertical plate (41), one end of the drive shaft (20) passes through the reserved groove (55) and is fixedly installed with a cam (56), and the lower end of the plug rod (53) is in sliding contact with the outer periphery of the cam (56).

6. The airtight observation and treatment window according to claim 5, characterized in that: The top of the cam (56) is a flat surface.

7. The airtight observation and treatment window according to claim 1, characterized in that: A spherical rubber protrusion (71) is provided on one side of the rubber sealing ring (7) close to the movable ring (6); a clamping groove (72) is provided on the movable ring (6) corresponding to the rubber protrusion (71); the rubber protrusion (71) is connected to the clamping groove (72) by clamping fit.

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