Split type sterile transfer butterfly valve

Abstract

The utility model discloses a split type sterile transfer butterfly valve which comprises a valve body and pipeline flanges arranged at the two ends of the valve body, the two ends of the valve body are fixedly connected with connecting discs, through openings corresponding to the valve body are formed in the connecting discs, and locking mechanisms are arranged between the connecting discs and the pipeline flanges. The valve body is slidably sleeved with two moving rings, a plurality of annularly-distributed two-way screws are arranged between the two moving rings, the two ends of each two-way screw penetrate through the two moving rings and are rotationally connected with the connecting disc, the two-way screws are in threaded connection with the moving rings, a first annular groove is formed in the outer wall of the valve body, and a second annular groove is formed in the outer wall of the valve body. And a movable ring is rotationally connected into the first annular groove. Through the arrangement of the connecting disc, the connecting block, the movable ring and other mechanisms, the valve body and the pipeline can be rapidly installed and connected, time is saved, efficiency is improved, the stability after connection is high, and popularization value is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of butterfly valves, in particular to a split aseptic transfer butterfly valve. Background Art

[0002] A butterfly valve, also known as a flap valve, is a regulating valve with a simple structure. It can be used for on-off control of low-pressure pipeline media. A butterfly valve refers to a valve in which the closing member (valve disc or butterfly plate) is a disc that rotates around the valve axis to achieve opening and closing.

[0003] In the aseptic filling process and the production of sterile active pharmaceutical ingredients in biotechnology, butterfly valves are needed to transfer sensitive raw materials. The butterfly valves currently on the market are generally fixed to the flanges on the pipeline through flanges. Multiple bolts are required during the docking process. Repeatedly tightening multiple bolts is cumbersome and the efficiency needs to be improved. Utility Model Content

[0004] The utility model aims to solve the problem that a butterfly valve is generally butted and fixed with a flange on a pipeline by a flange, and multiple bolts are needed in the butt-jointing process. It is cumbersome to repeatedly tighten the multiple bolts, and the efficiency needs to be improved. A split aseptic transfer butterfly valve is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A split aseptic transfer butterfly valve comprises a valve body and pipe flanges arranged at both ends thereof, both ends of the valve body are fixedly connected with connecting disks, the connecting disks are provided with a through port corresponding to the valve body, a locking mechanism is provided between the connecting disk and the pipe flange, two movable rings are slidably sleeved on the valve body, a plurality of bidirectional screws distributed in an annular shape are provided between the two movable rings, the two ends of the bidirectional screws respectively pass through the two movable rings and are rotatably connected to the connecting disks, the bidirectional screw and the movable ring are threadedly connected, a first annular groove is provided on the outer wall of the valve body, a movable ring is rotatably connected in the first annular groove, a linkage mechanism is provided between the movable ring and the bidirectional screw, and a driving mechanism corresponding to the movable ring is provided in the first annular groove.

[0007] Preferably, the locking mechanism includes a connecting block slidably inserted on the side of the connecting disk away from the valve body, the number of the connecting blocks is a plurality distributed in a ring, a locking block is fixedly connected to the side of the connecting block close to the pipe flange, and the end of the connecting block facing the valve body passes through the connecting disk and is fixedly connected to the movable ring.

[0008] Preferably, the driving mechanism includes a second annular groove arranged on the outer wall of the movable ring, a first annular rack is fixedly connected to the inner wall of the second annular groove, a servo motor is fixedly connected to the inner wall of the first annular groove, and a first gear meshing with the first annular rack is fixedly connected to the end of the output shaft of the servo motor, and one end of the first gear extends into the second annular groove.

[0009] Preferably, the linkage mechanism comprises a second annular rack fixed on the outer wall of the movable ring, and a second gear meshing with the second annular rack is fixedly sleeved on the bidirectional screw.

[0010] Preferably, a circular groove corresponding to the pipeline flange is provided on a side of the connecting plate away from the valve body, and a portion of the pipeline flange slides and extends into the circular groove.

[0011] Preferably, a rubber ring is fixedly connected to the inner wall of the circular slot. Beneficial Effects

[0012] Through the arrangement of the servo motor, the first gear, the first annular rack, the movable ring second annular rack, the second gear, the bidirectional screw, the movable ring, the connecting block and the locking block, the valve body can be quickly connected and fixed to the pipeline flange, and it is convenient for users to disassemble and assemble during subsequent maintenance and overhaul;

[0013] The circular groove can be used to position the pipe flange, which can improve the accuracy of the valve body and the pipe flange after docking. The plurality of ring-shaped locking blocks can effectively prevent the pipe flange from loosening, thereby improving reliability. The utility model can quickly install and connect the valve body and the pipe through the arrangement of connecting plates, connecting blocks, movable rings and other mechanisms, thereby saving time and improving efficiency. The connection is also very stable and has promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a split aseptic transfer butterfly valve proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a split aseptic transfer butterfly valve proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the split aseptic transfer butterfly valve proposed by the utility model at position A;

[0017] Figure 4 The utility model provides a schematic diagram of the side structure of the movable ring of a split aseptic transfer butterfly valve.

[0018] In the figure: 1-valve body, 2-connecting plate, 3-pipe flange, 4-bidirectional screw, 5-moving ring, 6-rubber ring, 7-connecting block, 8-locking block, 9-second gear, 10-servo motor, 11-first gear, 12-movable ring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-4 A split aseptic transfer butterfly valve comprises a valve body 1 and pipe flanges 3 arranged at both ends thereof, both ends of the valve body 1 are fixedly connected with connecting plates 2 for docking the pipe flanges 3, a circular groove corresponding to the pipe flange 3 is arranged on the side of the connecting plate 2 away from the valve body 1, and a part of the pipe flange 3 slides and extends into the circular groove, a through opening corresponding to the valve body 1 is arranged in the connecting plate 2, a circular groove corresponding to the pipe flange 3 is arranged on the side of the connecting plate 2 away from the valve body 1, and a part of the pipe flange 3 slides and extends into the circular groove, and a rubber ring 6 is fixedly connected to the inner wall of the circular groove;

[0021] In this embodiment, a locking mechanism is provided between the connection disk 2 and the pipe flange 3, and the locking mechanism includes a connection block 7 slidably inserted on the side of the connection disk 2 away from the valve body 1, which is used to drive the locking block 8 to move. The number of the connection blocks 7 is a plurality of annularly distributed ones, and the locking block 8 is fixedly connected to the side of the connection block 7 close to the pipe flange 3, which is used to lock the pipe flange 3. The end of the connection block 7 facing the valve body 1 passes through the connection disk 2 and is fixedly connected to the moving ring 5;

[0022] In this embodiment, two moving rings 5 ​​are slidably sleeved on the valve body 1, which are used to drive the connecting block 7 to move. A plurality of bidirectional screws 4 distributed in an annular shape are provided between the two moving rings 5, which are used to drive the moving rings 5 ​​to move. The two ends of the bidirectional screws 4 respectively penetrate the two moving rings 5 ​​and are rotatably connected to the connecting plate 2. The bidirectional screws 4 and the moving rings 5 ​​are threadedly connected.

[0023] In this embodiment, a first annular groove is provided on the outer wall of the valve body 1, and a movable ring 12 is rotatably connected in the first annular groove, which is used to drive the second annular rack to rotate. A linkage mechanism is provided between the movable ring 12 and the bidirectional screw 4, and the linkage mechanism includes a second annular rack fixed on the outer wall of the movable ring 12, which is used to drive the second gear 9 to rotate. The bidirectional screw 4 is fixedly sleeved with a second gear 9 meshing with the second annular rack, which is used to drive the bidirectional screw 4 to rotate;

[0024] In this embodiment, a driving mechanism corresponding to the movable ring 12 is provided in the first annular groove, and the driving mechanism includes a second annular groove provided on the outer wall of the movable ring 12, and a first annular rack is fixedly connected to the inner wall of the second annular groove, which is used to drive the movable ring 12 to rotate, and a servo motor 10 is fixedly connected to the inner wall of the first annular groove, which is used to drive the first gear 11 to rotate, and the end of the output shaft of the servo motor 10 is fixedly connected to the first gear 11 meshing with the first annular rack, which is used to drive the first annular rack to rotate, and one end of the first gear 11 extends into the second annular groove;

[0025] In this embodiment, first, the pipe flange 3 is inserted into the circular slot, and then the servo motor 10 is started to drive the first gear 11 to rotate, and the movable ring 12 is driven to rotate through the meshing effect of the first gear 11 and the first annular rack, and the second annular rack is driven to rotate through the movable ring 12, and the bidirectional screw 4 is driven to rotate through the meshing effect of the second annular rack and the second gear 9. The bidirectional screw 4 drives the two movable rings 5 ​​to move in opposite directions through the action of thread meshing, and drives the connecting block 5 to move through the movable ring 5, and drives the locking block 8 to move toward the pipe flange 3 through the connecting block 5, and clamps the pipe flange 3 through the locking block 8 to prevent the pipe flange 3 from loosening, and the docking operation can be completed.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A split aseptic transfer butterfly valve, comprising a valve body (1) and pipe flanges (3) arranged at both ends thereof, characterized in that: Both ends of the valve body (1) are fixedly connected to a connecting plate (2), a through hole corresponding to the valve body (1) is provided in the connecting plate (2), a locking mechanism is provided between the connecting plate (2) and the pipeline flange (3), two movable rings (5) are slidably sleeved on the valve body (1), a plurality of bidirectional screws (4) distributed in an annular shape are provided between the two movable rings (5), the two ends of the bidirectional screw (4) respectively penetrate the two movable rings (5) and are rotatably connected to the connecting plate (2), the bidirectional screw (4) and the movable ring (5) are threadedly connected, a first annular groove is provided on the outer wall of the valve body (1), a movable ring (12) is rotatably connected in the first annular groove, a linkage mechanism is provided between the movable ring (12) and the bidirectional screw (4), and a driving mechanism corresponding to the movable ring (12) is provided in the first annular groove.

2. A split aseptic transfer butterfly valve according to claim 1, characterized in that: The locking mechanism comprises a connecting block (7) slidably inserted on a side of the connecting disk (2) away from the valve body (1), the connecting blocks (7) being provided in a plurality and distributed in an annular manner, a locking block (8) being fixedly connected to a side of the connecting block (7) close to the pipeline flange (3), and an end of the connecting block (7) facing the valve body (1) passing through the connecting disk (2) and being fixedly connected to the movable ring (5).

3. A split aseptic transfer butterfly valve according to claim 1, characterized in that: The driving mechanism comprises a second annular groove arranged on the outer wall of the movable ring (12), a first annular rack being fixedly connected to the inner wall of the second annular groove, a servo motor (10) being fixedly connected to the inner wall of the first annular groove, a first gear (11) meshing with the first annular rack being fixedly connected to the end of the output shaft of the servo motor (10), and one end of the first gear (11) extending into the second annular groove.

4. A split aseptic transfer butterfly valve according to claim 1, characterized in that: The linkage mechanism comprises a second annular rack fixed on the outer wall of the movable ring (12), and a second gear (9) meshing with the second annular rack is fixedly sleeved on the bidirectional screw (4).

5. The split aseptic transfer butterfly valve according to claim 1 is characterized in that: A circular groove corresponding to the pipeline flange (3) is provided on a side of the connection plate (2) away from the valve body (1), and a portion of the pipeline flange (3) slides and extends into the circular groove.

6. A split aseptic transfer butterfly valve according to claim 5, characterized in that: A rubber ring (6) is fixedly connected to the inner wall of the circular slot.

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