Automatically-controlled high-sealing-performance biological sealing valve

Abstract

The utility model discloses an automatically-controlled high-sealing-performance biological sealing valve which comprises a sealing valve main body, a valve plate, a valve rod, a valve rod and a valve rod. The driving part comprises a motor and a rotating shaft, the motor is arranged on the closed valve body, the rotating shaft is connected to a driving shaft of the motor, and the rotating shaft is rotationally connected to the interior of the closed valve body; the linkage assembly comprises a first connecting plate, at least one second connecting plate, at least one third connecting plate and a connecting base, one end of the connecting base is connected with the valve plate, the other end of the connecting base is connected with the second connecting plate and the third connecting plate, and the end, away from the connecting base, of the second connecting plate is connected to the rotating shaft. The end, away from the connecting base, of the third connecting plate is rotationally connected to the first connecting plate, and one end of the first connecting plate is connected to the closed valve body. The biological sealing valve can solve the problems that an existing biological sealing valve is poor in sealing effect and prone to being blocked when opened.

Description

Technical Field

[0001] The utility model relates to a biological airtight valve, in particular to an automatically controlled high-sealing biological airtight valve. Background Art

[0002] Biological sealing valves are mainly used in ventilation pipeline systems of biological laboratories. In order to prevent the risk of leakage of toxic and harmful gases in the laboratory, and because the laboratory needs to perform closed disinfection and sterilization operations, it is necessary to ensure the airtightness of the ventilation system or protective equipment of the biological closed valve when the valve is closed. Common biological closed valves use actuators to drive the rotating shaft to drive the blades to compress the sealing gasket. For example, Chinese patent CN202320650482 discloses a biological closed valve with adjustable sealing size. It adopts a double-opening door structure. The upper and lower ends of the closed valve plate are respectively connected to the closed valve body through the track plate. The track plate is provided with a curved guide groove. The electric actuator drives the drive shaft to rotate, thereby driving the swing arm to rotate. The swing arm pulls the connecting rod to move, so that the sliding plate slides on the support guide rod. The sliding plate pulls the closed valve plate to slide on the track plate to realize the opening and closing of the closed valve plate. However, the double-opening biological containment valve has many components for controlling the opening of the door panels, a complex structure, and is difficult to assemble. It is also easy to get stuck, and friction between the door panels during use can easily create gaps, resulting in poor sealing effects. Utility Model Content

[0003] The utility model aims to provide an automatically controlled high-sealing biological closed valve in order to solve the problems that the existing biological closed valve has poor sealing effect and is easy to get stuck when opened.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatically controlled high-sealing biological closed valve, which comprises:

[0005] A closed valve body, wherein a valve plate is provided on the closed valve body;

[0006] A driving component, comprising a motor and a rotating shaft, wherein the motor is disposed on the airtight valve body, the rotating shaft is connected to a driving shaft of the motor, and the rotating shaft is rotatably connected to the interior of the airtight valve body;

[0007] At least one linkage assembly comprises a first connecting plate, at least one second connecting plate, at least one third connecting plate and a connecting seat, one end of the connecting seat is connected to the valve plate, the other end of the connecting seat is connected to the second connecting plate and the third connecting plate, one end of the second connecting plate away from the connecting seat is connected to the rotating shaft, one end of the third connecting plate away from the connecting seat is rotatably connected to the first connecting plate, and one end of the first connecting plate is connected to the closed valve body.

[0008] As a further description of the above technical solution:

[0009] The connecting seat includes a connecting plate and a connecting rod, the connecting plate is fixedly connected to the valve plate, the connecting rod is fixedly connected to the connecting plate, and a first connecting shaft and a second connecting shaft are arranged on the connecting rod, the two ends of the first connecting shaft are respectively connected to the second connecting plate, and the two ends of the second connecting shaft are respectively connected to the third connecting plate.

[0010] As a further description of the above technical solution:

[0011] The second connecting shaft abuts against the free end of the connecting rod.

[0012] As a further description of the above technical solution:

[0013] In the height direction, the two third connecting plates are located between the two second connecting plates.

[0014] As a further description of the above technical solution:

[0015] The first connecting plate is provided with an avoidance hole, and the rotating shaft is passed through the avoidance hole.

[0016] As a further description of the above technical solution:

[0017] A reinforcing plate is arranged on the valve plate, and two linkage components are arranged on the reinforcing plate.

[0018] As a further description of the above technical solution:

[0019] A sealing ring is arranged on the sealing valve body.

[0020] As a further description of the above technical solution:

[0021] The valve plate is a circular or polygonal plate.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0023] 1. In the utility model, the linkage assembly forms a connecting rod structure by setting the first connecting plate, the second connecting plate, the third connecting plate and the connecting seat. The motor drives the rotating shaft to rotate, and the second connecting plate fixed on the rotating shaft drives the connecting seat to move, so that the valve plate is separated from the sealing ring. As the motor continues to run, the valve plate can be fully opened. At this time, the valve is vertical to the sealing ring. The linkage assembly has a simple and compact structure and is easy and convenient to operate.

[0024] 2. In the utility model, a single circular valve plate is used, and the circular valve plate is located inside the closed valve body. After the valve is closed, the valve plate is mechanically pressed against the sealing ring, causing the sealing ring to deform by 2 to 3 mm, thereby ensuring the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 The figure is a schematic diagram of the structure of an automatically controlled high-sealing biological closed valve.

[0027] Figure 2 The present invention is a stereoscopic diagram of an automatically controlled high-sealing biological containment valve.

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0029] Figure 4 The figure is a schematic diagram of the internal structure of an automatically controlled high-sealing biological closed valve.

[0030] Figure 5 The diagram is a schematic diagram of the closed state of a valve plate in an automatically controlled high-sealing biological closed valve.

[0031] Figure 6 The diagram is a semi-open state diagram of a sealed valve plate in an automatically controlled high-sealing biological sealed valve.

[0032] Figure 7 The present invention is a schematic diagram of the fully open state of a sealed valve plate in an automatically controlled high-sealing biological sealed valve.

[0033] Legend:

[0034] 1. Sealed valve body; 2. Valve plate; 3. Driving component; 31. Motor; 32. Rotating shaft; 4. Linkage assembly; 41. First connecting plate; 42. Second connecting plate; 43. Third connecting plate; 44. Connecting seat; 441. Connecting disk; 442. Connecting rod; 5. First connecting shaft; 6. Second connecting shaft; 7. Reinforcement plate; 8. Sealing ring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-7 The utility model provides a technical solution: an automatically controlled high-sealing biological closed valve, which includes

[0037] A closed valve body 1, wherein a valve plate 2 is arranged on the closed valve body 1;

[0038] A driving component 3, comprising a motor 31 and a rotating shaft 32, wherein the motor 31 is disposed on the airtight valve body 1, the rotating shaft 32 is connected to a driving shaft of the motor 31, and the rotating shaft 32 is rotatably connected to the inside of the airtight valve body 1;

[0039] At least one linkage assembly 4 includes a first connecting plate 41, at least one second connecting plate 42, at least one third connecting plate 43 and a connecting seat 44, one end of the connecting seat 44 is connected to the valve plate 2, the other end of the connecting seat 44 is connected to the second connecting plate 42 and the third connecting plate 43, one end of the second connecting plate 42 away from the connecting seat 44 is connected to the rotating shaft 32, one end of the third connecting plate 43 away from the connecting seat 44 is rotatably connected to the first connecting plate 41, and one end of the first connecting plate 41 is connected to the closed valve body 1.

[0040] The connection seat 44 includes a connection plate 441 and a connection rod 442. The connection plate 441 is fixedly connected to the valve plate 2. The connection rod 442 is fixedly connected to the connection plate 441. The connection rod 442 is provided with a first connection shaft 5 and a second connection shaft 6. The two ends of the first connection shaft 5 are respectively connected to the second connection plate 42. The two ends of the second connection shaft 6 are respectively connected to the third connection plate 43. The connection plate and the connection rod are an integrated structure, and the connection is more firm. The connection plate connection can make the connection between the connection seat and the valve plate more firm and stable; the second connection plates are provided in two, so that the connection seat is more stably stressed and not easily damaged by uneven stress. The two ends of the third connection plate are both rotatably connected. The two third connection plates can make the transmission of the linkage assembly more stable.

[0041] The second connecting shaft 6 abuts against the free end of the connecting rod 442. In the height direction, the two third connecting plates 43 are located between the two second connecting plates 42. In this way, the second connecting plate can be prevented from interfering with the movement of the third connecting plate.

[0042] The first connecting plate 41 is provided with an avoidance hole, and the rotating shaft 32 is passed through the avoidance hole, so that installation space can be saved.

[0043] The valve plate 2 is provided with a reinforcing plate 7, and the reinforcing plate 7 is provided with two linkage components 4. The reinforcing plate is a cross-shaped reinforcing plate, which can improve the strength of the valve plate; the two linkage components can make the movement of the valve plate more stable.

[0044] The sealing valve body 1 is provided with a sealing ring 8 to improve the sealing effect.

[0045] The valve plate 2 is a circular or polygonal plate. The shape of the valve plate can be circular, irregular polygonal or regular polygonal, and can be made according to actual needs. In this embodiment, the valve plate is a circular plate.

[0046] Working principle: when the valve plate 2 is to be opened, the motor 31 drives the rotating shaft 32 to rotate, and the second connecting plate 42 fixed on the rotating shaft 32 drives the connecting seat 44 to move, and the valve plate 2 is separated from the sealing ring 8. As the motor 31 continues to operate, the valve plate 2 can be fully opened. At this time, the valve plate 2 is perpendicular to the sealing ring 8. When the valve plate 2 is to be closed, the motor 31 flips over, so that the valve plate 2 can be rotated in the opposite direction so that the valve plate 2 is closed and close to the sealing ring 8.

[0047] 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. An automatically controlled high-sealing biological containment valve, characterized in that: include: A closed valve body, wherein a valve plate is provided on the closed valve body; A driving component, comprising a motor and a rotating shaft, wherein the motor is disposed on the airtight valve body, the rotating shaft is connected to a driving shaft of the motor, and the rotating shaft is rotatably connected to the interior of the airtight valve body; At least one linkage assembly comprises a first connecting plate, at least one second connecting plate, at least one third connecting plate and a connecting seat, one end of the connecting seat is connected to the valve plate, the other end of the connecting seat is connected to the second connecting plate and the third connecting plate, one end of the second connecting plate away from the connecting seat is connected to the rotating shaft, one end of the third connecting plate away from the connecting seat is rotatably connected to the first connecting plate, and one end of the first connecting plate is connected to the closed valve body.

2. The automatic controlled high-sealing biological containment valve according to claim 1, characterized in that: The connecting seat includes a connecting plate and a connecting rod, the connecting plate is fixedly connected to the valve plate, the connecting rod is fixedly connected to the connecting plate, and a first connecting shaft and a second connecting shaft are arranged on the connecting rod, the two ends of the first connecting shaft are respectively connected to the second connecting plate, and the two ends of the second connecting shaft are respectively connected to the third connecting plate.

3. The automatic controlled high-sealing biological containment valve according to claim 2, characterized in that: The second connecting shaft abuts against the free end of the connecting rod.

4. The automatic controlled high-sealing biological containment valve according to claim 2, characterized in that: In the height direction, the two third connecting plates are located between the two second connecting plates.

5. The automatic controlled high-sealing biological containment valve according to claim 2, characterized in that: The first connecting plate is provided with an avoidance hole, and the rotating shaft is passed through the avoidance hole.

6. The automatic controlled high-sealing biological containment valve according to claim 1, characterized in that: A reinforcing plate is arranged on the valve plate, and two linkage components are arranged on the reinforcing plate.

7. The automatic controlled high-sealing biological containment valve according to claim 1, characterized in that: A sealing ring is arranged on the sealing valve body.

8. The automatic controlled high-sealing biological containment valve according to claim 1, characterized in that: The valve plate is a circular or polygonal plate.

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