Sealed transfer device for closed space and external space

Abstract

The invention discloses a sealed 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 assembly 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] The invention relates to the technical field of food and medicine packaging machinery and equipment, and in particular to a sealing transfer device between a closed space and an external space. Background Art

[0002] RTP valves are used to transfer materials between two sterile spaces, ensuring that the sterile space and materials are not contaminated, while contamination or leakage may bring serious consequences. Therefore, RTP valves require extremely high reliability and safety, and foolproof operation is even more critical. Leakage or contamination caused by human operation is the key to failure.

[0003] The existing patent document with application number 201280061932.6 discloses a high-security control mechanism for a device for sealing transfer between two closed spaces, including a centralized control mechanism integrated with a safety component, and a device for sealing transfer between two closed spaces. The device includes a first flange and a second flange and a first door and a second door. The first flange and the second flange can be firmly attached to each other through a first bayonet connection. The first door and the second door block openings defined by the first flange and the second flange respectively under normal conditions, and the first door and the second door are connected to each other through a second bayonet connection. The control mechanism comprises: a control assembly mounted on the first flange so that it can be moved between a closed position and an open position via an intermediate locking position; a slide system disposed between the control assembly and the first door so as to separate the first door from the first flange when the control assembly moves from its locking position to its open position; a first bolt portion which normally blocks the control assembly in its closed position and which is automatically unlocked in the event of a second door abutting against the first door; a second bolt portion which normally blocks the control assembly in its closed position and which is automatically unlocked in the event of a second door abutting against the first door; and a second bolt portion which normally blocks the control assembly in its closed position and which is automatically unlocked in the event of a second door abutting against the first door. The second bolt portion is automatically unlocked when the second flange is firmly attached to the first flange through the first bayonet connection; the third bolt portion is normally unlocked when the control assembly is in its closed position, and when the control assembly is between its locked position and the open position or in one of its locked position and the open position, the third bolt portion automatically blocks the first bayonet connection in a state where the first flange and the second flange are firmly attached; the fourth bolt portion is normally unlocked when the control assembly is in its closed position, and when the control assembly is between its locked position and the open position or in one of its locked position and the open position, the third bolt portion automatically blocks the first bayonet connection in a state where the first flange and the second flange are firmly attached; When the control assembly is in a middle position, the fourth bolt automatically acts after the first door controlled by the slide system is separated to prevent the control assembly from returning to its closed position; wherein the centralized control mechanism also includes a protective bolt, which is normally unlocked in the closed position and the open position of the control assembly, and the protective bolt can block the control assembly when the second flange is at least not completely locked on the first flange between the following two situations, thereby preventing the first door from opening; the two situations are the moment when the second bolt is in the unlocked position and before the third bolt blocks the first bayonet connection when the first flange and the second flange are firmly attached. The centralized control mechanism with integrated safety components prevents the second flange from being separated and the first door from opening by the protective bolt arranged on the control assembly, thereby avoiding contamination of the sterile space inside the first door. However, on the one hand, multiple bolts need to be arranged on the control assembly, which is complex in structure and high in manufacturing cost; on the other hand, the weight of the control assembly is increased, and the energy consumption of the rotation operation is large. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a sealing transfer device between a closed space and an external space which makes the structure of the door lock assembly simpler, has lower manufacturing cost, reduces the weight of the door lock assembly, and has low energy consumption in rotating operation.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A sealing transfer device for a closed space and an external space comprises a first flange and a second flange, a first door body and a second door body, the first flange and the second flange can be connected by a first clamping structure, the first door body is used to block an opening defined by the first flange, the second door body is used to block an opening defined by the second flange, the first door body and the second door body are connected by a second clamping structure, a door lock assembly is provided on the second flange, the door lock assembly can move between a closed position and an open position through an intermediate locking position; a lock track is provided on the second door body, and the door lock assembly locks the second door body, the second door body and the second door body when cooperating with the lock track The second door body is unlocked when the door lock assembly is in the middle locking position and the first flange and the second flange are separated, and the second door body is unlocked when the door lock assembly is in the middle locking position and the first flange and the second flange are separated, and the second door body is unlocked when the door lock assembly is in the middle locking position and the first flange and the second flange are separated, and the second door body is unlocked when the door lock assembly is in the middle locking position and the first flange and the second flange are separated, and the second door body is unlocked when the door lock assembly is in the middle locking position and the first flange and the second flange are separated, and the second door body is unlocked when the door lock assembly is in the middle locking position and the first flange and the second flange are separated, and the second door body is unlocked when the door lock assembly is in the middle locking position and the first flange and the second flange are separated, and the second door body is unlocked when the door lock assembly is in the middle locking position and the first flange and the second flange are separated, and the second door body is unlocked

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

[0008] The locking bolt assembly comprises a locking bolt and an elastic reset member, wherein the locking bolt is slidably disposed on the second flange, and the elastic reset member is disposed between the locking bolt and the second flange and is used to insert the locking bolt into the first locking hole and the second locking hole.

[0009] The locking bolt is provided with a rolling member, which is used to roll with the first flange when the first flange and the second flange are connected by the first clamping structure, so that the locking bolt releases the blocking effect on the door locking assembly.

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

[0011] The door lock assembly comprises a lock seat and a lock handle, wherein the lock handle is arranged on the lock seat, the lock seat is rotatably arranged on the second flange, and the first lock hole and the second lock hole are arranged on the lock seat.

[0012] The first locking hole and the second locking hole are arranged on a side of the locking base facing the second flange.

[0013] The lock seat is provided with an arc-shaped limiting groove which is concentric with the rotation center of the lock seat, and the second flange is provided with a limiting portion which is slidably matched with the arc-shaped limiting groove.

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

[0015] One side of the second door body is hinged on the second flange, and the lock path is arranged on the other side of the second door body.

[0016] The second door body is provided with a handle.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The sealing transfer device for the enclosed space and the external space of the present invention can prevent the second door body from opening when the first flange and the second flange are accidentally separated by arranging the first lock hole and the second lock hole on the lock door assembly. Compared with arranging the 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. On the other hand, the weight of the lock door assembly 7 is reduced, and the energy consumption of the rotation operation is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the sealed transfer device between the closed space and the external space of the present invention.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the sealed transfer device between the closed space and the external space of the present invention.

[0021] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 4 It is a structural schematic diagram of the door lock assembly of the sealed transfer device between the closed space and the external space of the present invention.

[0023] Figure 5 It is a schematic diagram of the matching structure of the first flange and the first door body of the sealing transfer device between the closed space and the external space of the present invention.

[0024] Figure 6 It is a structural schematic diagram of a locking bolt assembly of a sealed transfer device between a closed space and an external space of the present invention.

[0025] The symbols in the figure represent:

[0026] 1. First flange; 2. Second flange; 21. Lock bolt assembly; 211. Lock bolt; 212. Rolling element; 3. First door body; 4. Second door body; 41. Lock channel; 42. Handle; 5. First clamping structure; 6. Second clamping structure; 7. Door lock assembly; 71. Lock seat; 72. Lock handle; 73. Arc-shaped limit groove; 74. Lock wheel; 8. First lock hole; 9. Second lock hole. DETAILED DESCRIPTION

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

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "assemble", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Figures 1 to 6An embodiment of a sealing transfer device for a closed space and an external space of the present invention is shown. The sealing transfer device for a closed space and an external space of this embodiment includes a first flange 1 and a second flange 2, a first door body 3 and a second door body 4. The first flange 1 and the second flange 2 can be connected by a first clamping structure 5. The first door body 3 is used to block the opening defined by the first flange 1, and 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 clamping structure 6. A door lock assembly 7 is provided on the second flange 2. The door lock assembly 7 can move between a closed position and an open position through an intermediate locking position; a lock track 41 is provided on the second door body 4, and the door lock assembly 7 cooperates with the lock track 41. The second door body 4 is locked when the second door body 4 is locked, and the second door body 4 is unlocked when the second door body 4 is separated. The door lock assembly 7 is separated from the lock path 41 when it moves from the locked position to the open position. The door lock assembly 7 is provided with a first lock hole 8 and a second lock hole 9, and a bolt assembly 21 is provided on the second flange 2. 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, and is moved out of 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 clamping structure 5, and 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 body 4 from opening.

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

[0033] Flange docking and door opening process: First, the first flange 1 and the second flange 2 are connected by the first clamping structure 5, the first door body 3 and the second door body 4 are connected by the second clamping structure 6, and when the first flange 1 and the second flange 2 are connected by the first clamping structure 5, the bolt assembly 21 moves out of the first lock hole 8 to release the blocking effect on the door lock assembly 7; secondly, the bolt assembly 21 moves from the closed position to the open position, and when it moves smoothly to the open position, the door lock assembly 7 is separated from the lock channel 41, so that the second door body 4 can be opened, and the first door body 3 and the second door body 4 are opened as the second door body 4 is opened; in 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 are disengaged, when the door lock assembly 7 is in the intermediate locking position, the bolt assembly 21 is inserted into the second lock hole 9 to prevent the door lock assembly 7 from moving, thereby preventing the second door body 4 from opening.

[0034] The sealing transfer device between the closed space and the external space can prevent the second door body 4 from opening when the first flange 1 and the second flange 2 are accidentally separated by arranging the first lock hole 8 and the second lock hole 9 on the lock door assembly 7. Compared with arranging the bolt part on the lock door assembly 7, on the one hand, the structure of the lock door assembly 7 is simpler and the manufacturing cost is lower. On the other hand, the weight of the lock door assembly 7 is reduced and the energy consumption of the rotation operation is small.

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

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

[0037] Flange docking and door opening process: First, the first flange 1 and the second flange 2 are connected by the first clamping structure 5, and the first door body 3 and the second door body 4 are connected by the second clamping structure 6. Moreover, when the first flange 1 and the second flange 2 are connected by the first clamping structure 5, the lock bolt 211 overcomes the elastic force of the elastic reset member under the pushing action of the first flange 1 and moves out of the first lock hole 8 to release the blocking effect on the lock door assembly 7; secondly, the lock bolt assembly 21 moves from the closed position to the open position. When it moves smoothly to the open position, the lock door assembly 7 is separated from the lock path 41, and the second door body 4 can be opened. The first door body 3 and the second door body 4 are opened as the second door body 4 is opened; in the process of the lock bolt assembly 21 moving from the closed position to the open position, if the first flange 1 and the second flange 2 are disengaged, when the lock door assembly 7 is in the intermediate locking position, the lock bolt 211 is aligned with the second lock hole 9, and the lock bolt 211 is inserted into the second lock hole 9 under the elastic force of the elastic reset member to prevent the lock door assembly 7 from moving, thereby preventing the second door body 4 from opening.

[0038] Furthermore, if Figure 3 , Figure 5 and Figure 6As shown, in this embodiment, a rolling member 212 is provided on the locking bolt 211, and the rolling member 212 is used to roll with the first flange 1 when the first flange 1 and the second flange 2 are connected by the first clamping structure 5, so that the locking bolt 211 releases the blocking effect on the locking door assembly 7. The rolling member 212 is used to roll with the first flange 1 when the first flange 1 and the second flange 2 are connected by the first clamping structure 5, so that the locking bolt 211 releases the blocking effect on the locking door assembly 7, and on the other hand, reduces the friction between the locking bolt 211 and the first flange 1 during the clamping of the first flange 1 and the second flange 2 by the first clamping structure 5.

[0039] Furthermore, in this embodiment, the door lock assembly 7 is rotatably disposed on the second flange 2. The door lock assembly 7 realizes movement between the closed position and the open position by rotation.

[0040] Furthermore, if 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 arranged on the lock seat 71, and the lock seat 71 is rotatably arranged on the second flange 2. The first lock hole 8 and the second lock hole 9 are arranged on the lock seat 71. The lock handle 72 drives the lock seat 71 to rotate to achieve movement between the closed position and the open position. Of course, in other embodiments, the lock seat 71 can be electrically driven to rotate for easy electric control.

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

[0042] Further, in this embodiment, the lock seat 71 is provided with an arc-shaped limiting groove 73 which is concentric with the rotation center of the lock seat 71, and the second flange 2 is provided with a limiting portion which is slidably matched 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 portion is located at one end of the arc-shaped limiting groove 73, the lock seat 71 is located in the closed position, and the lock bolt 211 is inserted into the first lock hole 8 under the elastic force of the elastic reset member, and when the limiting portion is located at the other end of the arc-shaped limiting groove 73, the lock seat 71 is located in the open position, the lock door assembly 7 is separated from the lock path 41, and the second door body 4 can be opened.

[0043] Furthermore, if Figure 1 and Figure 4 As shown, in this embodiment, the door lock assembly 7 is provided with a lock wheel 74, and the door lock assembly 7 cooperates with the lock track 41 through the lock wheel 74. On the one hand, the lock wheel 74 cooperates with the lock track 41 to prevent the second door body 4 from opening. On the other hand, during the process of rotating and unlocking the door lock assembly 7, the lock wheel 74 rolls with the lock track 41 to reduce friction. Specifically, the lock wheel 74 is arranged on the lock seat 71.

[0044] Furthermore, if Figure 1 and Figure 2As shown, in this embodiment, one side of the second door body 4 is hinged on the second flange 2, and the lock path 41 is provided on the other side of the second door body 4. On the one hand, it is convenient to open and close the door, and on the other hand, it prevents the second door body 4 from falling after opening.

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

[0046] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the technical content disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention should fall within the scope of protection of the technical solution 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) can be connected via a first clamping structure (5), the first door body (3) is used to block an opening defined by the first flange (1), and the second door body (4) is used to block an opening defined by the second flange (2), the first door body (3) and the second door body (4) are connected via a second clamping structure (6), a door lock assembly (7) is provided on the second flange (2), and the door lock assembly (7) can move between a closed position and an open position through an intermediate locking position; a lock track (41) is provided on the second door body (4), the door lock assembly (7) locks the second door body (4) when it cooperates with the lock track (41), and unlocks the second door body (4) when it is separated, and the door lock assembly (7) separates from the lock track (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 lock bolt assembly (21). When the door lock assembly (7) is in a closed position and the first flange (1) and the second flange (2) are separated, the lock bolt assembly (21) is inserted into the first lock hole (8) to prevent the door lock assembly (7) from moving; when the first flange (1) and the second flange (2) are connected via a first clamping structure (5), the lock bolt assembly (21) is moved out of the first lock hole (8) to release the blocking effect on the door lock assembly (7); when the door lock assembly (7) is in an intermediate locking position and the first flange (1) and the second flange (2) are separated, the lock bolt assembly (21) is inserted into the second lock hole (9) to prevent the door lock assembly (7) from moving, thereby preventing the second door body (4) from opening.

2. The sealed transfer device between a closed space and an external space according to claim 1, characterized in that: The locking bolt assembly (21) comprises a locking bolt (211) and an elastic reset member, wherein the locking bolt (211) is slidably disposed on the second flange (2), and the elastic reset member is disposed between the locking bolt (211) and the second flange (2) and is used to insert the locking bolt (211) into the first locking hole (8) and the second locking hole (9).

3. The sealed transfer device between a closed space and an external space according to claim 2, characterized in that: The locking bolt (211) is provided with a rolling member (212), and the rolling member (212) is used to roll with the first flange (1) when the first flange (1) and the second flange (2) are connected via the first clamping structure (5), so that the locking bolt (211) releases the blocking effect on the door locking assembly (7).

4. The sealed transfer device between a closed space and an external space according to claim 1, characterized in that: The door lock assembly (7) is rotatably arranged on the second flange (2).

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

6. The sealed transfer device between a closed space and an external space according to claim 5, characterized in that: The first locking hole (8) and the second locking hole (9) are arranged on a side of the locking seat (71) facing the second flange (2).

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

8. The sealed transfer device between a closed space and an external space according to claim 4, characterized in that: The door lock assembly (7) is provided with a lock wheel (74), and the door lock assembly (7) cooperates with the lock track (41) through the lock wheel (74).

9. The sealed transfer device between 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 on the second flange (2), and the lock path (41) is arranged on the other side of the second door body (4).

10. The sealed transfer device between 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).

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