Sealed transfer device for closed space and external space

Abstract

The utility model discloses a sealing transfer device for a closed space and an external space, which comprises a first flange, a second flange, a first door body and a second door body, a door locking component is arranged on the second flange, and a lock channel is arranged on the second door body; the door locking assembly is provided with a first lock hole and a second lock hole, and the second flange is provided with a lock plunger assembly. The lock bolt assembly is inserted into the first lock hole to stop the door locking assembly from moving when the door locking assembly is located at the closed position and the first flange and the second flange are separated, and moves out of the first lock hole to relieve the stopping effect on the door locking assembly when the first flange and the second flange are connected through the first clamping structure. And when the door locking assembly is located at the middle locking position and the first flange and the second flange are separated, the second lock hole is inserted to prevent the door locking assembly from moving, so that the second door body is prevented from being opened. The sealing transfer device has the advantages that the structure of the door locking assembly is simpler, the manufacturing cost is lower, the weight of the door locking assembly is reduced, and the energy consumption of rotating operation is small.

Description

Technical Field

[0001] This utility model relates to the field of food and pharmaceutical packaging machinery and equipment technology, specifically to a sealed transfer device between a closed space and an external space. Background Technology

[0002] RTP valves are used for material transfer between two sterile spaces, ensuring that neither the space nor the materials are contaminated. Contamination or leakage can have serious consequences. Therefore, RTP valves require extremely high reliability and safety, and error-proof operation is crucial, as leakage or contamination caused by human operation is a key cause of failure.

[0003] Existing patent document with application number 201280061932.6 discloses a highly secure control mechanism for a device for sealing transfer between two enclosed spaces, including a centralized control mechanism integrated with safety components. The centralized control mechanism is used for the device for sealing transfer between two enclosed spaces. The device includes a first flange and a second flange, as well as a first door and a second door. The first flange and the second flange are securely attached to each other via a first bayonet connection. The first door and the second door normally seal the openings defined by the first flange and the second flange, respectively, and are connected to each other via a second bayonet connection. Securely attached, wherein the control mechanism includes: a control assembly mounted on a first flange, thereby enabling it to move between a closed position and an open position via an intermediate locking position; a slide system disposed between the control assembly and a first door to disengage the first door from the first flange when the control assembly moves from its locked position to its open position; a first bolt that normally blocks the control assembly in its closed position and automatically unlocks upon the appearance of a second door against the first door; and a second bolt that normally blocks the control assembly in its closed position and... The second bolt automatically unlocks when the second flange is securely attached to the first flange via the first bayonet connection; the third bolt is normally unlocked when the control component is in its closed position, and automatically prevents the first bayonet connection from securely attaching to the first and second flanges when the control component is between its locked and open positions or in one of its locked and open positions; the fourth bolt is normally unlocked when the control component is in its closed position, and automatically unlocks when the control component is between its locked and open positions or in one of its locked and open positions. In one of the centrally located positions, the fourth latch automatically activates after the first door, controlled by the slide system, separates to prevent the control component from returning to its closed position. The centralized control mechanism also includes a protective latch, which is normally unlocked in both the closed and open positions of the control component. The protective latch can block the control component from opening the first door when the second flange is not fully locked to the first flange in either of the following two situations: the moment the second latch is in the unlocked position and before the third latch blocks the first flange and the second flange from being securely attached. This centralized control mechanism, integrating safety components, prevents the second flange from detaching and the first door from opening due to the protective latch on the control component, thus avoiding contamination of the sterile space inside the first door. However, on the one hand, multiple latches are required on the control component, resulting in a complex structure and high manufacturing costs; on the other hand, it increases the weight of the control component, and the rotation operation consumes a lot of energy. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sealed transfer device for the closed space and the external space that makes the structure of the door lock assembly simpler, the manufacturing cost lower, the weight of the door lock assembly reduced, and the energy consumption of the rotation operation low.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A sealing transfer device for a closed space and an external space includes a first flange and a second flange, a first door body and a second door body. The first flange and the second flange are connected by a first snap-fit ​​structure. The first door body is used to seal the opening defined by the first flange, and the second door body is used to seal the opening defined by the second flange. The first door body and the second door body are connected by a second snap-fit ​​structure. The second flange is provided with a locking assembly, which is movable between a closed position and an open position after passing through an intermediate locking position. The second door body is provided with a locking channel, and when the locking assembly cooperates with the locking channel, it locks the second door body and opens / closes the external space. When the second door is unlocked, the locking assembly separates from the locking channel when it moves from the locked position to the open position. The locking assembly is provided with a first lock hole and a second lock hole, and the second flange is provided with a bolt assembly. The bolt assembly is inserted into the first lock hole to prevent the locking assembly from moving when the locking assembly is in the closed position and the first flange and the second flange are separated; it is removed from the first lock hole to release the blocking effect on the locking assembly when the first flange and the second flange are connected by a first snap-fit ​​structure; and it is inserted into the second lock hole to prevent the locking assembly from moving when the locking assembly is in the intermediate locked position and the first flange and the second flange are separated, thereby preventing the second door from opening.

[0007] As a further improvement to the above technical solution:

[0008] The bolt assembly includes a bolt and a resilient reset member. The bolt is slidably mounted on the second flange, and the resilient reset member is located between the bolt and the second flange to allow the bolt to be inserted into the first and second locking holes.

[0009] The bolt is provided with a rolling element, which is used to roll and engage with the first flange when the first flange and the second flange are connected by the first snap-fit ​​structure, so that the bolt releases its obstruction of the door locking assembly.

[0010] The door lock assembly is rotatably mounted on the second flange.

[0011] The door locking assembly includes a lock base and a lock handle, the lock handle is disposed on the lock base, the lock base is rotatably disposed on a second flange, and the first lock hole and the second lock hole are disposed on the lock base.

[0012] The first and second lock holes are located on the side of the lock seat facing the second flange.

[0013] The lock seat is provided with an arc-shaped limiting groove concentric with the rotation center of the lock seat, and the second flange is provided with a limiting part that slides with the arc-shaped limiting groove.

[0014] The door locking assembly is equipped with a locking wheel, and the door locking assembly cooperates with the locking track through the locking wheel.

[0015] One side of the second door is hinged to the second flange, and the locking channel is located on the other side of the second door.

[0016] The second door is equipped with a handle.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] The sealing transfer device between the enclosed space and the external space of this utility model, by setting a first lock hole and a second lock hole on the lock door assembly, and cooperating with the bolt assembly on the second flange, can prevent the second door from opening when the first flange and the second flange are accidentally detached. Compared with setting a bolt part on the lock door assembly, on the one hand, the structure of the lock door assembly is simpler and the manufacturing cost is lower, and on the other hand, the weight of the lock door assembly 7 is reduced and the energy consumption of rotation operation is small. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the sealing transfer device between the enclosed space and the external space of this utility model.

[0020] Figure 2 This is a cross-sectional structural diagram of the sealing transfer device between the enclosed space and the external space of this utility model.

[0021] Figure 3 yes Figure 2 A magnified structural diagram of point A in the middle.

[0022] Figure 4 This is a schematic diagram of the lock assembly of the sealing transfer device between the enclosed space and the external space of this utility model.

[0023] Figure 5 This is a schematic diagram of the cooperation structure between the first flange and the first door of the sealing transfer device for enclosed space and external space of this utility model.

[0024] Figure 6 This is a schematic diagram of the locking bolt assembly of the sealing transfer device between the enclosed space and the external space of this utility model.

[0025] The labels in the diagram represent:

[0026] 1. First flange; 2. Second flange; 21. Bolt assembly; 211. Bolt; 212. Rolling element; 3. First door body; 4. Second door body; 41. Lock track; 42. Handle; 5. First snap-fit ​​structure; 6. Second snap-fit ​​structure; 7. Locking assembly; 71. Lock seat; 72. Lock handle; 73. Arc-shaped limiting groove; 74. Lock wheel; 8. First lock hole; 9. Second lock hole. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Figures 1 to 6This invention illustrates an embodiment of a sealing transfer device for enclosed space and external space. The device includes a first flange 1 and a second flange 2, a first door 3 and a second door 4. The first flange 1 and the second flange 2 are connected via a first snap-fit ​​structure 5. The first door 3 is used to block the opening defined by the first flange 1, and the second door 4 is used to block the opening defined by the second flange 2. The first door 3 and the second door 4 are connected via a second snap-fit ​​structure 6. A locking assembly 7 is provided on the second flange 2, which is movable between a closed position and an open position after passing through an intermediate locking position. A locking channel 41 is provided on the second door 4, and the locking assembly 7 and the locking channel 41 are matched. When the door is closed, the second door 4 is locked; when it is open, the second door 4 is unlocked. When the door locking assembly 7 moves from the locked position to the open position, it separates from the locking channel 41. The door locking assembly 7 is provided with a first locking hole 8 and a second locking hole 9. The second flange 2 is provided with a bolt assembly 21. When the door locking assembly 7 is in the closed position and the first flange 1 and the second flange 2 are separated, the bolt assembly 21 is inserted into the first locking hole 8 to prevent the door locking assembly 7 from moving. When the first flange 1 and the second flange 2 are connected by the first snap-fit ​​structure 5, the bolt assembly 21 is removed from the first locking hole 8 to release the blocking effect on the door locking assembly 7. When the door locking assembly 7 is in the middle locked position and the first flange 1 and the second flange 2 are separated, the bolt assembly 21 is inserted into the second locking hole 9 to prevent the door locking assembly 7 from moving, thereby preventing the second door 4 from opening.

[0032] In normal conditions, the second door 4 blocks the opening defined by the second flange 2, the first door 3 blocks the opening defined by the first flange 1, and the bolt assembly 21 is inserted into the first lock hole 8.

[0033] Flange connection and door opening process: First, the first flange 1 and the second flange 2 are connected through the first snap-fit ​​structure 5, and the first door body 3 and the second door body 4 are connected through the second snap-fit ​​structure 6. When the first flange 1 and the second flange 2 are connected through the first snap-fit ​​structure 5, the bolt assembly 21 moves out of the first lock hole 8 to release the obstruction effect on the door locking assembly 7. Second, the bolt assembly 21 moves from the closed position to the open position. When it moves smoothly to the open position, the door locking assembly 7 separates from the lock channel 41, and the second door body 4 can be opened. The first door body 3 and the second door body 4 open together with the second door body 4. During the process of the bolt assembly 21 moving from the closed position to the open position, if the first flange 1 and the second flange 2 disengage, when the door locking assembly 7 is in the intermediate locking position, the bolt assembly 21 inserts into the second lock hole 9 to prevent the door locking assembly 7 from moving, thereby preventing the second door body 4 from opening.

[0034] This sealing and transfer device between the enclosed space and the external space, by providing a first locking hole 8 and a second locking hole 9 on the locking assembly 7, which cooperate with the bolt assembly 21 on the second flange 2, can prevent the second door 4 from opening when the first flange 1 and the second flange 2 are accidentally detached. Compared with providing a bolt part on the locking assembly 7, on the one hand, the structure of the locking assembly 7 is simpler and the manufacturing cost is lower, and on the other hand, the weight of the locking assembly 7 is reduced and the energy consumption of the rotation operation is small.

[0035] Furthermore, such as Figure 2 As shown, in this embodiment, the bolt assembly 21 includes a bolt 211 and an elastic reset member. The bolt 211 is slidably disposed on the second flange 2, and the elastic reset member is disposed between the bolt 211 and the second flange 2 for inserting the bolt 211 into the first locking hole 8 and the second locking hole 9.

[0036] In normal conditions, the second door 4 blocks the opening defined by the second flange 2, the first door 3 blocks the opening defined by the first flange 1, and the bolt 211 is inserted into the first lock hole 8 under the elastic force of the elastic reset member.

[0037] Flange connection and door opening process: First, the first flange 1 and the second flange 2 are connected through the first snap-fit ​​structure 5, and the first door body 3 and the second door body 4 are connected through the second snap-fit ​​structure 6. When the first flange 1 and the second flange 2 are connected through the first snap-fit ​​structure 5, the bolt 211 moves out of the first lock hole 8 under the pushing action of the first flange 1 to overcome the elastic force of the elastic reset member and release the obstruction effect on the door locking assembly 7. Second, the bolt assembly 21 moves from the closed position to the open position. When it moves smoothly to the open position, the door locking assembly 7 separates from the lock channel 41, and the second door body 4 can be opened. The first door body 3 and the second door body 4 open along with the second door body 4. During the process of the bolt assembly 21 moving from the closed position to the open position, if the first flange 1 and the second flange 2 disengage, when the door locking assembly 7 is in the middle locking position, the bolt 211 is aligned with the second lock hole 9. Under the elastic force of the elastic reset member, the bolt 211 is inserted into the second lock hole 9 to prevent the door locking assembly 7 from moving, thereby preventing the second door body 4 from opening.

[0038] Furthermore, such as Figure 3 , Figure 5 and Figure 6As shown, in this embodiment, the bolt 211 is provided with a rolling element 212. The rolling element 212 is used to roll and engage with the first flange 1 when the first flange 1 and the second flange 2 are connected by the first snap-fit ​​structure 5, so that the bolt 211 releases its obstruction of the door locking assembly 7. On the one hand, the rolling element 212 is used to roll and engage with the first flange 1 when the first flange 1 and the second flange 2 are connected by the first snap-fit ​​structure 5, so that the bolt 211 releases its obstruction of the door locking assembly 7. On the other hand, it reduces the friction between the bolt 211 and the first flange 1 during the snap-fit ​​process of the first flange 1 and the second flange 2.

[0039] Furthermore, in this embodiment, the door locking assembly 7 is rotatably mounted on the second flange 2. The door locking assembly 7 moves between the closed position and the open position by rotation.

[0040] Furthermore, such as Figure 4 As shown, in this embodiment, the door lock assembly 7 includes a lock seat 71 and a lock handle 72. The lock handle 72 is disposed on the lock seat 71, and the lock seat 71 is rotatably mounted on the second flange 2. The first lock hole 8 and the second lock hole 9 are disposed on the lock seat 71. The lock handle 72 drives the lock seat 71 to rotate, thereby moving between the closed position and the open position. Of course, in other embodiments, the lock seat 71 can be electrically driven to rotate, which facilitates electronic control.

[0041] Furthermore, in this embodiment, the first locking hole 8 and the second locking hole 9 are located on the side of the lock seat 71 facing the second flange 2.

[0042] Furthermore, in this embodiment, the lock seat 71 is provided with an arc-shaped limiting groove 73 concentric with the rotation center of the lock seat 71, and the second flange 2 is provided with a limiting part that slides with the arc-shaped limiting groove 73. The arc-shaped limiting groove 73 can be used to limit the rotation angle of the lock seat 71. For example, when the limiting part is located at one end of the arc-shaped limiting groove 73, the lock seat 71 is in the closed position, and the bolt 211 is inserted into the first lock hole 8 under the elastic force of the elastic reset member. When the limiting part is located at the other end of the arc-shaped limiting groove 73, the lock seat 71 is in the open position, the lock door assembly 7 is separated from the lock channel 41, and the second door 4 can be opened.

[0043] Furthermore, such as Figure 1 and Figure 4 As shown, in this embodiment, the door locking assembly 7 is provided with a locking wheel 74. The door locking assembly 7 cooperates with the locking track 41 through the locking wheel 74. On the one hand, the locking wheel 74 cooperates with the locking track 41 to prevent the second door 4 from opening. On the other hand, during the process of rotating and unlocking the door locking assembly 7, the locking wheel 74 and the locking track 41 roll into contact, reducing friction. Specifically, the locking wheel 74 is provided on the lock base 71.

[0044] Furthermore, such as Figure 1 and Figure 2As shown, in this embodiment, one side of the second door 4 is hinged to the second flange 2, and the locking channel 41 is located on the other side of the second door 4. This facilitates opening and closing the door and prevents the second door 4 from falling off after being opened.

[0045] Furthermore, in this embodiment, the second door 4 is provided with a handle 42 to facilitate the opening and closing of the second door 4.

[0046] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A sealing transfer device for a closed space and an external space, comprising a first flange (1) and a second flange (2), a first door body (3) and a second door body (4), wherein the first flange (1) and the second flange (2) are connected by a first snap-fit ​​structure (5), the first door body (3) is used to block the opening defined by the first flange (1), the second door body (4) is used to block the opening defined by the second flange (2), the first door body (3) and the second door body (4) are connected by a second snap-fit ​​structure (6), a locking assembly (7) is provided on the second flange (2), the locking assembly (7) is movable between a closed position and an open position through an intermediate locking position; a locking channel (41) is provided on the second door body (4), the locking assembly (7) locks the second door body (4) when it engages with the locking channel (41), and unlocks the second door body (4) when it disengages, the locking assembly (7) disengages from the locking channel (41) when it moves from the locked position to the open position; characterized in that: The door lock assembly (7) is provided with a first lock hole (8) and a second lock hole (9), and the second flange (2) is provided with a bolt assembly (21). The bolt assembly (21) is inserted into the first lock hole (8) to prevent the door lock assembly (7) from moving when the door lock assembly (7) is in the closed position and the first flange (1) and the second flange (2) are separated; it is removed from the first lock hole (8) to release the blocking effect on the door lock assembly (7) when the first flange (1) and the second flange (2) are connected by the first snap-fit ​​structure (5); and it is inserted into the second lock hole (9) to prevent the door lock assembly (7) from moving when the door lock assembly (7) is in the intermediate locking position and the first flange (1) and the second flange (2) are separated, thereby preventing the second door (4) from opening.

2. The sealed transfer device for enclosed space and external space according to claim 1, characterized in that: The bolt assembly (21) includes a bolt (211) and a resilient reset member. The bolt (211) is slidably mounted on the second flange (2). The resilient reset member is located between the bolt (211) and the second flange (2) and is used to allow the bolt (211) to be inserted into the first locking hole (8) and the second locking hole (9).

3. The sealed transfer device for enclosed space and external space according to claim 2, characterized in that: The bolt (211) is provided with a rolling element (212), which is used to roll with the first flange (1) when the first flange (1) and the second flange (2) are connected by the first snap-fit ​​structure (5), so that the bolt (211) releases its blocking effect on the door lock assembly (7).

4. The sealed transfer device for enclosed space and external space according to claim 1, characterized in that: The door lock assembly (7) is rotatably mounted on the second flange (2).

5. The sealed transfer device for enclosed space and external space according to claim 4, characterized in that: The door lock assembly (7) includes a lock seat (71) and a lock handle (72). The lock handle (72) is disposed on the lock seat (71). The lock seat (71) is rotatably disposed on the second flange (2). The first lock hole (8) and the second lock hole (9) are disposed on the lock seat (71).

6. The sealed transfer device for enclosed space and external space according to claim 5, characterized in that: The first lock hole (8) and the second lock hole (9) are located on the side of the lock seat (71) facing the second flange (2).

7. The sealed transfer device for enclosed space and external space according to claim 5, characterized in that: The lock seat (71) is provided with an arc-shaped limiting groove (73) concentric with the rotation center of the lock seat (71), and the second flange (2) is provided with a limiting part that slides with the arc-shaped limiting groove (73).

8. The sealed transfer device for enclosed space and external space according to claim 4, characterized in that: The door locking assembly (7) is provided with a locking wheel (74), and the door locking assembly (7) cooperates with the locking channel (41) through the locking wheel (74).

9. The sealed transfer device for a closed space and an external space according to any one of claims 1 to 7, characterized in that: One side of the second door body (4) is hinged to the second flange (2), and the lock channel (41) is located on the other side of the second door body (4).

10. The sealed transfer device for a closed space and an external space according to any one of claims 1 to 7, characterized in that: The second door body (4) is provided with a handle (42).

Images