A sealing door lock and isolator door

Abstract

This invention provides a sealed door lock and an isolator door. The sealed door lock includes a movable lock body and a fixed lock body. The movable lock body has a locking pin, and the fixed lock body has a locking groove that cooperates with the locking pin. The movable lock body includes a slide rail and a sealing shell slidably disposed on the slide rail. The locking pin is located at the end of the sealing shell and engages with the locking groove to lock or unlock as the sealing shell slides. A first position sensor is disposed on the sealing shell, and a second position sensor paired with the first position sensor is disposed on the fixed lock body for determining whether the door lock is closed or closed. The isolator door includes a door frame, a door body, and the aforementioned sealed door lock. An inflatable sealing ring for sealing is disposed between the door frame and the door body. The inflatable sealing ring is connected to an inflation device, and the inflation device is communicatively connected to the second position sensor of the sealed door lock. The sealed door lock and isolator door provided by this invention have good sealing and dustproof effects, and are convenient to operate and highly reliable.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and in particular to a sealing door lock and isolator door. Background Technology

[0002] The pharmaceutical industry has specific requirements for the materials, performance, and appearance of every component of isolators. The same applies to door locks, which must fully consider factors such as safety and ease of operation. Each of these factors has strict requirements.

[0003] Traditionally, a Chinese patent with application number 201822232328.2 discloses a door lock structure with alarm function for use on sterile isolators. It includes a lock cylinder assembly and a lock housing. The lock cylinder assembly includes a lock cylinder seat and a latch. The lock cylinder seat is fixed to the door of the isolator, and the latch is located inside the lock cylinder seat. The latch includes a body and a tongue portion located on one side of the body. The body has a manual groove for manipulating the latch's extension and retraction, and a first mounting groove is also provided on the same side of the tongue portion. The tongue portion has a guide bevel. The lock housing is fixed to the door frame and has a lock hole that matches the tongue portion. This patent uses a manual groove to operate the latch, but inevitably, there is a gap between the latch and the lock cylinder seat, and a gap between the manual groove and the cover plate. The presence of these gaps allows dust to easily enter the lock, making it unsuitable for use on isolators used for dispensing, powder freeze-drying, etc. Furthermore, existing door locks require manual resetting after opening, which is complex.

[0004] Therefore, there is an urgent need for a sealing door lock and isolator door that has good sealing and dustproof effect, and is easy to operate and highly reliable. Summary of the Invention

[0005] The purpose of this invention is to provide a sealing door lock and isolator door, which aims to solve the technical problems of poor sealing performance, cumbersome operation and low reliability of traditional door locks.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a sealed door lock, comprising a movable lock body and a fixed lock body, wherein the movable lock body is provided with a locking pin, and the fixed lock body is provided with a locking groove that cooperates with the locking pin; the movable lock body includes a slide rail for being disposed on a door body and a sealing shell slidably disposed on the slide rail, wherein the locking pin is disposed at the end of the sealing shell and cooperates with the locking groove to lock or unlock as the sealing shell slides;

[0007] A first position sensor is provided on the sealing shell, and a second position sensor is provided on the fixed lock body to be paired with the first position sensor. The matching of the first position sensor and the second position sensor is used to determine whether the door lock is closed or closed.

[0008] As a further improvement to the above solution, the sealing shell is provided with a sliding groove that matches and slides with the slide rail along its sliding direction, and at least one end of the sliding groove is provided with an opening, and a sealing element is provided at the opening.

[0009] As a further improvement to the above solution, the sealing shell has a first receiving groove on the surface opposite to the slide groove, the first position sensor is disposed in the first receiving groove, and a first cover plate is also provided on the surface opposite to the slide groove.

[0010] As a further improvement to the above solution, the first cover plate is provided with a handle for easy operation.

[0011] As a further improvement to the above solution, the fixed lock body includes a fixed lock body mounting base, the top surface of which is provided with a second receiving groove, and the second position sensor is disposed in the second receiving groove; and both opposite sides of the second receiving groove and the first receiving groove have openings.

[0012] As a further improvement to the above solution, the locking pin is disposed at one end of the sealing shell and extends in a direction perpendicular to the sliding direction, and the locking groove is correspondingly matched at one end of the fixed lock body mounting base.

[0013] As a further improvement to the above solution, the fixed lock body also includes a second cover plate, which is disposed on the top surface of the fixed lock body mounting base and is used to fasten and seal the fixed lock body mounting base.

[0014] As a further improvement to the above solution, a reset mechanism is also provided between the sealing shell and the slide rail for the automatic reset of the sealing shell.

[0015] As a further improvement to the above solution, the reset mechanism includes a blind hole on the slide rail away from the locking pin, a guide shaft on the sealing shell away from the locking pin, and an elastic element; one end of the elastic element contacts the bottom of the blind hole, and the other end is sleeved on the guide shaft.

[0016] As a further improvement to the above solution, the elastic element is a compression spring.

[0017] Secondly, the present invention also provides an isolator door, including a door frame, a door body for opening / closing the isolator and matched with the door frame, and the aforementioned sealing door lock; the movable lock body is mounted on the door body, and the fixed lock body is matched and mounted on the door frame.

[0018] An inflatable sealing ring for sealing is provided between the door frame and the door body. The inflatable sealing ring is connected to an inflation device, and the inflation device is communicatively connected to the second position sensor of the sealing door lock, for controlling the air supply and de-inflation of the inflatable sealing ring according to the opening and closing status of the sealing door lock.

[0019] As a further improvement to the above solution, when the second position sensor does not detect the first position sensor, it is determined that the door body is in the open state, and the inflation device stops supplying air to the inflation sealing ring.

[0020] When the second position sensor detects the first position sensor, it determines that the door body is in a closed state, and the inflation device starts supplying air to the inflation sealing ring.

[0021] Because the present invention adopts the above technical solutions, the beneficial effects of this application are as follows:

[0022] 1. This invention provides a sealed door lock, comprising a movable lock body and a fixed lock body. The movable lock body is provided with a locking pin, and the fixed lock body is provided with a locking groove that cooperates with the locking pin. The movable lock body includes a slide rail for mounting on a door body and a sealing shell slidably mounted on the slide rail. The locking pin is located at the end of the sealing shell and engages with the locking groove to lock or unlock as the sealing shell slides. A first position sensor is provided on the sealing shell, and a second position sensor is provided on the fixed lock body that is paired with the first position sensor. The matching of the first and second position sensors is used to determine whether the door lock is closed or closed. This invention provides a sealed door lock. The housing is slidably mounted on the slide rail, and the locking pin is located at the end of the sealing housing. As the sealing housing slides, the locking pin engages with the locking groove to lock or unlock, making the sealing door lock provided by the present invention simple to operate; simply sliding the sealing housing is sufficient to open and close the lock. In some embodiments, the sealing housing has a sliding groove that matches the slide rail along its sliding direction. At least one end of the sliding groove has an opening, and a sealing element is provided at the opening. The end sealing element ensures that the slide rail is always concealed within the sealing housing during the entire sliding process, thereby improving the sealing performance of the door lock and preventing dust from entering the slide rail, thus improving the reliability of the sealing door lock.

[0023] In some embodiments, a first cover plate is provided on the surface opposite to the slide groove, and a second cover plate is provided on the top surface of the fixed lock body mounting base. The first cover plate is used to seal and fasten the sealing shell, and the second cover plate is used to fasten and seal the fixed lock body mounting base. The provision of the first cover plate and the second cover plate further improves the sealing performance of the sealed door lock provided by the present invention, thereby improving the reliability of the sealed door lock.

[0024] In some embodiments, the first position sensor is an electromagnet, and the second position sensor can sense and output a corresponding signal when the door is closed, thereby monitoring the opening and closing status of the door lock; it can also realize the interlock function of the door lock, that is, the movable lock body can only be operated to open or close the door when the open or close signal of the controller is received, otherwise it cannot be operated. Such a setting can avoid accidental opening of the door lock, which could lead to unpredictable risks caused by the communication between two environments with different cleanliness levels.

[0025] 2. This invention provides a sealed door lock, wherein a reset mechanism is provided between the sealing shell and the slide rail for automatic reset of the sealing shell; the reset mechanism includes a blind hole on the slide rail away from the locking pin end, a guide shaft on the sealing shell away from the locking pin end, and an elastic element; one end of the elastic element contacts the bottom of the blind hole, and the other end is sleeved on the guide shaft; the reset mechanism is configured such that when an external force is applied to the sealing shell, during the sliding unlocking process, the end of the sealing shell away from the locking pin compresses the elastic element, causing the elastic element to store force; when the external force applied to the sealing shell is released, the sealing shell automatically resets and is pulled back under the elastic force of the elastic element; such a design not only ensures the stability of the sealed door lock structure itself, but also makes operation more time-saving and labor-saving.

[0026] 3. The present invention provides an isolator door, comprising a door frame, a door body for opening / closing the isolator and matched with the door frame, and the aforementioned sealing door lock; the movable lock body is installed on the door body, the fixed lock body is matched and installed on the door frame, and an inflatable sealing ring for sealing is provided between the door frame and the door body. The inflatable sealing ring is connected to an inflation device, and the inflation device is communicatively connected to a second position sensor of the sealing door lock, for controlling the air supply and de-inflation of the inflatable sealing ring according to the opening and closing status of the sealing door lock; typically, the door frame is made of stainless steel, and the door body is made of tempered glass. The contact between the two hard materials cannot form a complete seal, and the rigid contact and collision without gaps can easily damage the glass. Therefore, in the present invention, an inflatable sealing ring made of soft silicone material is used to eliminate the gap between the two, so that the clean area can be completely isolated from the outside world and the various chambers within the clean area under specific production conditions. The soft inflatable sealing ring can provide a certain degree of protection for the glass door. However, when the door is open, the air seal is ineffective, and continuous air supply may cause the air seal to burst and fail. Therefore, when the door is open, it is necessary to control the air supply device to stop supplying air to the air seal in a timely manner. This invention connects the second position sensor used to sense the door lock switch to the air supply device, so as to determine in a timely manner whether the door lock is in the open state and stop supplying air to the air seal, thereby avoiding the failure of the air seal and ensuring the sealing safety and effectiveness of the isolator door. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 This is a three-dimensional schematic diagram of a sealed door lock disclosed in this invention;

[0029] Figure 2 This is an exploded schematic diagram of a sealed door lock part disclosed in this invention;

[0030] Figure 3 This is an exploded schematic diagram of the sealing shell of a sealing door lock disclosed in this invention;

[0031] Figure 4 This is an exploded view of the fixed lock body of a sealing door lock disclosed in this invention;

[0032] Figure 5This is an exploded schematic diagram of the slide rail of a sealing door lock disclosed in this invention;

[0033] Figure 6 This is a schematic diagram of a sealed door lock in the locked state from various perspectives, as disclosed in this invention.

[0034] Figure 7 This is a schematic diagram of a sealed door lock in the open state from various perspectives, as disclosed in this invention.

[0035] Figure 8 This is a cross-sectional schematic diagram of an isolator door disclosed in this invention;

[0036] Explanation of icon numbers:

[0037] 1. Movable lock body; 11. Locking pin; 12. Slide rail; 13. Sealing shell; 14. First position sensor; 16. Slide groove; 17. First receiving groove; 18. First cover plate; 19. Seal;

[0038] 2. Fixed lock body; 21. Lock groove; 22. Second position sensor; 23. Fixed lock body mounting base; 24. Second receiving groove; 25. Second cover plate;

[0039] 3. Reset mechanism; 31. Blind hole; 32. Guide shaft; 33. Elastic element;

[0040] 4. Door frame; 5. Door body; 6. Inflatable sealing ring.

[0041] The realization of the objective, functional characteristics and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that all directional indicators (such as up, down, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0044] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0045] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0046] In the above embodiments, those skilled in the art can use existing technology for software control. This invention only protects the structure of a sealed door lock and the interconnections between them.

[0047] Example 1:

[0048] Reference Figures 1-7 The present invention provides a sealing door lock, including a movable lock body 1 and a fixed lock body 2. The movable lock body 1 is provided with a locking pin 11, and the fixed lock body 2 is provided with a locking groove 21 that cooperates with the locking pin 11. The movable lock body 1 includes a slide rail 12 for being mounted on the door body and a sealing shell 13 slidably mounted on the slide rail 12. The locking pin 11 is located at the end of the sealing shell 13 and cooperates with the locking groove 21 to lock or unlock as the sealing shell 13 slides.

[0049] The sealing shell 13 is provided with a first position sensor 14, and the fixed lock body 2 is provided with a second position sensor 22 that is paired with the first position sensor 14. The matching of the first position sensor 14 and the second position sensor 22 is used to determine whether the door lock is closed or closed.

[0050] In this invention, a sealing shell 13 is slidably mounted on the slide rail 12, and a locking pin 11 is mounted on the sealing shell 13. As the sealing shell 13 slides, the locking pin 11 engages with the locking groove 21 to lock or unlock, making the sealed door lock provided by this invention easy to operate; simply sliding the sealing shell 13 is sufficient to open and close the lock. In some embodiments, the sealing shell 13 has a sliding groove 16 that slides along its sliding direction and matches the slide rail 12. At least one end of the sliding groove 16 has an opening, and a sealing element 19 is provided at the opening. The end sealing element 19 ensures that the slide rail 12 is always concealed within the sealing shell 13 during the entire sliding process, thereby improving the sealing performance of the door lock and preventing dust from entering the slide rail, thus improving the reliability of this sealed door lock.

[0051] In a preferred embodiment, a first position sensor 14 is provided on the sealing shell 13, and correspondingly, a second position sensor 22 is provided on the fixed lock body 2 to sense the first position sensor 14. The first position sensor 14 and the second position sensor 22 are matched and configured to determine whether the door lock is closed or closed.

[0052] In some embodiments, the first position sensor 14 is an electromagnet, and the second position sensor 22 can sense and output a corresponding signal when the door is closed, thereby monitoring the opening and closing status of the door lock; it can also realize the interlocking function of the door lock, that is, the movable lock body 1 can only be operated to open or close the door when the open or close signal of the controller is received, otherwise it cannot be operated. Such a setting can ensure the normal operation of the equipment, thereby avoiding accidental opening of the door lock and causing unpredictable risks caused by the communication between two environments of different cleanliness levels;

[0053] For details, see Figure 6 When the sealing shell 13 of the movable lock body 1 is stationary, the electromagnet and the second position sensor 22 form a local magnetic field. Under the action of magnetic force, it tightly adheres to the fixed lock body 2. At this time, the second position sensor 22 can transmit this closing signal to the controller; see also Figure 7 When the sealing shell 13 of the movable lock body 1 is in motion, the travel trajectory of the sealing shell 13 is linear, which drives the electromagnet mounted on it to move together. As the magnetic field lines change and lengthen, the magnetic field also changes, the magnetic force weakens, and the electromagnet gradually disengages from the second position sensor 22. The second position sensor 22 also transmits this door opening signal to the controller. Similarly, when the second position sensor 22 receives the door opening signal command from the controller, its own magnetic force weakens, allowing the corresponding door to open. Alternatively, when the second position sensor 22 receives the door closing signal command from the controller, the corresponding door cannot be opened until the controller command is released.

[0054] In a preferred embodiment, the sealing shell 13 has a first receiving groove 17 on the surface opposite to the sliding groove 16, and the first position sensor 14 is disposed in the first receiving groove 17. A first cover plate 18 is also disposed on the surface opposite to the sliding groove 16. The first cover plate 18 is provided with a handle for easy operation. The first receiving groove 17 facilitates the concealment of the first position sensor 14 within the sealing shell 13, and the first cover plate 18 further seals the first position sensor 14 within the first receiving groove 17, thereby reducing dust from entering the first position sensor 14. Furthermore, the handle facilitates the operation of the sliding sealing shell 13.

[0055] In a preferred embodiment, the fixed lock body 2 includes a fixed lock body mounting base 23, the top surface of which is provided with a second receiving groove 24, and the second position sensor 22 is disposed in the second receiving groove 24; and both the second receiving groove 24 and the first receiving groove 17 have openings on their opposite sides, so that the second position sensor 22 can sensitively sense the first position sensor 14; the second receiving groove 24 is provided so that the second position sensor 22 can be hidden in the sealing shell 13.

[0056] In a preferred embodiment, the locking pin 11 is disposed at one end of the sealing shell 13 and extends perpendicular to the sliding direction. The locking groove 21 is correspondingly matched and disposed at one end of the fixed lock body mounting base 23. Specifically, one end of the fixed lock body mounting base 23 is provided with a groove that matches the locking pin 11, and the groove has an opening facing the unlocking direction, so that the locking pin 11 can disengage from the groove and open the door lock. The present invention sets the locking pin 11 and the corresponding locking groove 21 at the end, which is convenient for processing and has a simple structure. Unlike the traditional telescopic locking pin 11, it does not require a corresponding knob or lever to release the lock. It also fundamentally prevents dust from entering the interior through the locking buckle of the telescopic locking pin 11. On the other hand, it is easy to operate, and the door lock can be opened by simply moving the sealing shell 13 in a straight line.

[0057] In a preferred embodiment, the fixed lock body 2 further includes a second cover plate 25, which is disposed on the top surface of the fixed lock body mounting base 23 for fastening and sealing the fixed lock body mounting base 23; and the cover plate also seals the second position sensor 22 in the second receiving groove 24, thereby reducing dust from entering the second position sensor 22.

[0058] In a preferred embodiment, a reset mechanism 3 is further provided between the sealing shell 13 and the slide rail 12 for automatic reset of the sealing shell 13. Specifically, in this embodiment, the reset mechanism 3 includes a blind hole 31 on the slide rail 12 away from the locking pin 11, a guide shaft 32 on the sealing shell 13 away from the locking pin 11, and an elastic element 33. One end of the elastic element 33 contacts the bottom of the blind hole 31, and the other end is sleeved on the guide shaft 32. The elastic element 33 is a compression spring. See also Figure 6 and Figure 7The reset mechanism 3 is designed such that when an external force is applied to the sealing shell 13 and the lock is opened by sliding, the end of the sealing shell 13 away from the lock pin 11 compresses the elastic element 33, causing the elastic element 33 to store force. When the external force applied to the sealing shell 13 is released, the sealing shell 13 automatically resets and is pulled back under the elastic force of the elastic element 33. This design not only ensures the stability of the sealing door lock structure itself, but also makes the operation more time-saving and labor-saving.

[0059] In some embodiments, the guide shaft 32 is disposed at the end of the sealing shell 13 away from the locking pin 11. The locking pin 11 end of the slide groove 16 has an opening to facilitate sliding the sealing shell 13 onto the slide rail 12, and a sealing element 19 is also provided on the opening. The end of the slide groove 16 away from the locking pin 11 has a limiting part, and the guide shaft 32 is disposed on the limiting part. The sealing element 19 and the limiting part ensure that the slide rail 12 is always concealed inside the sealing shell 13 during sliding, thereby preventing the slide rail 12 from being contaminated by dust and affecting the smooth sliding of the sealing shell 13. Regarding the setting of the limiting part, see [link to documentation]. Figure 7 d. During the unlocking process, the limiting part continuously compresses the elastic element 33, and the elastic element 33 continuously stores force.

[0060] Specifically, in a static state, from Figure 6 a and Figure 6 Viewed from angle c, the door lock is completely sealed. Figure 6 In component b, the electromagnet and the magnetic induction second position sensor 22 are in contact, controlling the door lock with a closing signal. Figure 6 The elastic element 33 in the reset mechanism 3 in d is currently in its original state, neither stretched nor compressed.

[0061] In motion, from Figure 7 a and Figure 7 Viewed from angle c, the door lock is completely sealed. Figure 7 In step b, the magnet and the magnetic induction second position sensor 22 are in a disengaged state, controlling the door lock with an "open" signal. Figure 7 In the reset mechanism 3, the elastic element 33 is currently in a compressed state, and is subjected to force and compressed to a distance equal to the stroke of the magnet.

[0062] Example 2:

[0063] Secondly, see Figure 8 The present invention also provides an isolator door, including a door frame 4, a door body 5 for opening / closing the isolator and matched with the door frame 4, and the aforementioned sealing door lock; the movable lock body 1 is installed on the door body 5, and the fixed lock body 2 is matched and installed on the door frame 4.

[0064] An inflatable sealing ring 6 for sealing is provided between the door frame 4 and the door body 5. The inflatable sealing ring 6 is connected to an inflation device, and the inflation device is communicatively connected to the second position sensor 22 of the sealing door lock. It is used to control the air supply to the inflatable sealing ring 6 according to the opening and closing status of the sealing door lock. Specifically, in this embodiment, when the second position sensor 22 does not detect the first position sensor 14, it is determined that the door body 5 is in the open state, and the inflation device stops supplying air to the inflatable sealing ring 6.

[0065] When the second position sensor 22 detects the first position sensor 14, it determines that the door body 5 is in a closed state, and the inflation device starts to supply air to the inflation sealing ring 6.

[0066] Typically, the door frame 4 is made of stainless steel, while the door body 5 is made of tempered glass. The contact between these two hard materials cannot form a complete seal, and the lack of gaps in the hard contact and collisions can easily damage the glass. Therefore, this invention uses a soft silicone inflatable sealing ring 6 to eliminate the gap between them, allowing the clean area to be completely isolated from the outside world and from each chamber within the clean area under specific production conditions. The soft inflatable sealing ring 6 provides a certain degree of protection for the glass door. However, when the door is open, the sealing of the inflatable sealing ring 6 is ineffective, and continuous air supply may cause it to rupture and fail. Therefore, when the door is open, it is necessary to promptly control the inflation device to stop supplying air to the inflatable sealing ring 6. This invention connects the second position sensor 22, used to sense the door lock switch, to the inflation device, enabling timely detection of whether the door lock is open and stopping the air supply to the inflatable sealing ring 6. This prevents the inflatable sealing ring 6 from failing and ensures the sealing safety and effectiveness of the isolator door.

[0067] This invention uses a controller to control whether the inflatable sealing ring 6 on the door body 5 is inflated or deflated. This prevents the inflatable sealing ring 6 from bursting due to endless inflation when the door body 5 is open. Similarly, the controller can generate open and close signals to control the opening and closing of the door lock, preventing human error from damaging the originally sealed and clean environment.

[0068] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A sealed door lock, comprising a movable lock body (1) and a fixed lock body (2), wherein the movable lock body (1) is provided with a locking pin (11), and the fixed lock body (2) is provided with a locking groove (21) that cooperates with the locking pin (11); characterized in that, The movable lock body (1) includes a slide rail (12) for being mounted on the door body and a sealing shell (13) for being slidably mounted on the slide rail (12). The locking pin (11) is located at the end of the sealing shell (13) and engages with the lock groove (21) to lock or unlock as the sealing shell (13) slides. A first position sensor (14) is provided on the sealing shell (13), and a second position sensor (22) is provided on the fixed lock body (2) to be paired with the first position sensor (14). The matching of the first position sensor (14) and the second position sensor (22) is used to determine whether the door lock is closed or closed. The sealing shell (13) is provided with a sliding groove (16) that matches and slides with the slide rail (12) along its sliding direction. At least one end of the sliding groove (16) is provided with an opening, and a sealing element (19) is provided at the opening. The sealing shell (13) has a first receiving groove (17) on the surface opposite to the slide groove (16), the first position sensor (14) is disposed in the first receiving groove (17), and a first cover plate (18) is also disposed on the surface opposite to the slide groove (16).

2. A sealing door lock according to claim 1, characterized in that, The fixed lock body (2) includes a fixed lock body mounting base (23), the top surface of which is provided with a second receiving groove (24), and the second position sensor (22) is disposed in the second receiving groove (24); and both opposite sides of the second receiving groove (24) and the first receiving groove (17) have openings.

3. A sealed door lock according to claim 2, characterized in that, The locking pin (11) is disposed at one end of the sealing shell (13) and extends perpendicular to the sliding direction, and the locking groove (21) is correspondingly matched at one end of the fixed lock body mounting base (23).

4. A sealing door lock according to claim 2, characterized in that, The fixed lock body (2) also includes a second cover plate (25), which is disposed on the top surface of the fixed lock body mounting base (23) for fastening and sealing the fixed lock body mounting base (23).

5. A sealed door lock according to any one of claims 1-4, characterized in that, A reset mechanism (3) is also provided between the sealing shell (13) and the slide rail (12) for the automatic reset of the sealing shell (13).

6. A sealed door lock according to claim 5, characterized in that, The reset mechanism (3) includes a blind hole (31) on the slide rail (12) away from the locking pin (11), a guide shaft (32) on the sealing shell (13) away from the locking pin (11), and an elastic element (33); one end of the elastic element (33) is in contact with the bottom of the blind hole (31), and the other end is sleeved on the guide shaft (32).

7. An isolator door, comprising a door frame (4), a door body (5) for opening / closing the isolator and mating with the door frame (4), and a sealing door lock as claimed in any one of claims 1-6; wherein the movable lock body (1) is mounted on the door body (5), and the fixed lock body (2) is matingly mounted on the door frame (4), characterized in that, An inflatable sealing ring (6) for sealing is provided between the door frame (4) and the door body (5). The inflatable sealing ring (6) is connected to an inflation device, and the inflation device is communicatively connected to the second position sensor (22) of the sealing door lock, for controlling the air supply and de-airing of the inflatable sealing ring (6) according to the opening and closing status of the sealing door lock.

8. An isolator door according to claim 7, characterized in that, When the second position sensor (22) does not detect the first position sensor (14), it is determined that the door body (5) is in the open state, and the inflation device stops supplying air to the inflation sealing ring (6); When the second position sensor (22) detects the first position sensor (14), it determines that the door body (5) is in a closed state, and the inflation device starts to supply air to the inflation sealing ring (6).

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