Pneumatic type vacuum separating valve

Abstract

The utility model discloses a pneumatic type vacuum separating valve, which relates to the field of vacuum separating valves and comprises a valve body, a connecting pipe is arranged at the bottom of the valve body, a connecting disc is fixedly arranged at the end of the connecting pipe, a mouth protecting ring is arranged on the connecting disc, and an auxiliary component is mounted on the mouth protecting ring. According to the utility model, through the installation of the auxiliary assembly, the connecting part of the connecting disc and the fixing ring is sealed, air, water vapor and sundries are prevented from entering the valve body from the connecting part of the connecting disc and the fixing ring, meanwhile, the connecting strength between the mouth protecting cover and the connecting disc is enhanced, and the mouth protecting ring is prevented from falling off, so that the problems that the existing mouth protecting ring is single in form and inconvenient to use are solved. And the problems of easy falling and untight sealing exist.

Description

Technical Field

[0001] This utility model relates to the field of vacuum separation valves, and in particular to a pneumatic vacuum separation valve. Background Technology

[0002] A pneumatic vacuum separation valve, as the name suggests, is a type of valve that controls the opening and closing of the valve through air pressure. It uses a pneumatic actuator and controls the air source to open and close the valve. Its principle is to use the air pressure provided by the air source to transmit the force generated by the actuator to the valve, thereby controlling the opening and closing of the valve.

[0003] During the transportation and storage of pneumatic vacuum separators, protective rings are used to protect the connection ports of the pneumatic vacuum separators. This is to prevent the connection ports from being damaged due to friction or collision during stacking or transportation, and to prevent foreign matter and moisture from entering the pneumatic vacuum separators, which could cause corrosion and damage to the internal components.

[0004] However, the existing pneumatic vacuum separation valves have a single type of protective ring, which has the disadvantages of being easy to fall off and not sealing tightly. Therefore, it is necessary to propose a pneumatic vacuum separation valve to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a pneumatic vacuum separation valve to solve the problems mentioned above, such as the single form of the protective ring on the existing pneumatic vacuum separation valve, which is easy to fall off and has poor sealing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic vacuum separation valve, comprising a valve body, a connecting pipe provided at the bottom of the valve body, a connecting disc fixedly provided at the end of the connecting pipe, and a protective ring provided on the connecting disc;

[0007] The protective ring includes a protective cover and a fixing ring. The fixing ring is fixedly installed in the middle of one side of the protective cover and is sleeved on the outer ring of the connecting plate. The fixing ring is made of rubber. The protective cover and the connecting plate are movably fitted together. A limit block is fixedly provided on the side of the protective cover away from the fixing ring. A turntable is rotatably provided on the outer ring of the limit block. The turntable and the protective cover are movably fitted together. The diameter of the turntable is larger than the diameter of the protective cover. Two sets of symmetrically arranged auxiliary components are provided on the side of the turntable near the limit block.

[0008] The auxiliary component includes an upper limit ring, which is fixedly installed at the bottom near the edge of the turntable. A mounting rod is fixedly provided on the side of the upper limit ring away from the turntable, and a film roll is movably sleeved on the outer ring of the mounting rod.

[0009] Preferably, four annularly distributed limiting grooves are fixedly arranged in the inner structure layer of the mounting rod, the limiting grooves penetrate through the upper and lower surfaces of the mounting rod, elastic sheets are arranged in the limiting grooves, and press rods are movably connected in the limiting grooves and movably abut against the elastic sheets.

[0010] Preferably, the end of the press rod movably abutting against the film roll is arranged in a circular arc shape.

[0011] Preferably, a threaded rod is fixedly arranged at the middle of the bottom of the mounting rod, two gaskets are sleeved at the outer circle of the threaded rod, a lower limiting ring is arranged between the two gaskets, a fastening nut is threadedly connected at the outer circle of the threaded rod, and the fastening nut is located below the lower gasket.

[0012] Preferably, the upper and lower surfaces of the film roll movably abut against the upper limiting ring and the lower limiting ring respectively.

[0013] Preferably, two symmetrical guide rods are fixedly arranged at the edge of the rotating disc, and the distance between the bent ends of the two guide rods is equal to the diameter of the protective cover.

[0014] Preferably, a plurality of rubber plates are fixedly arranged at the outer circle of the rotating disc in a ring shape.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] 1. The auxiliary assembly seals the connection between the connecting disc and the fixing ring, blocks air, water vapor and sundries from entering the valve body through the connection between the connecting disc and the fixing ring, and strengthens the connection strength between the protective cover and the connecting disc, thereby avoiding the falling of the protective cover.

[0017] 2. The press rods uniformly apply the same thrust to the film roll, thereby increasing the friction between the mounting rod and the film roll.

[0018] 3. The fastening nut is rotated and removed, the lower limiting ring is removed, the restriction on the lower end of the film roll is cancelled, the film roll is pulled out from the bottom of the mounting rod, a new film roll is replaced, and the film roll is installed in reverse.

[0019] 4. After rotating the turntable, the pulled-out film is guided by the guide rod, and the lower half of the film is bent towards the connecting plate, making it easier to press the lower half of the film inward with your fingers later. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a pneumatic vacuum separation valve according to the present invention.

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the turntable of this utility model.

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the protective ring of this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of the mounting rod of this utility model.

[0024] Figure 5 This is a front view cross-sectional structural diagram of the mounting rod of this utility model.

[0025] Figure 6 This is a schematic diagram of the horizontal cross-sectional structure of the mounting rod of this utility model.

[0026] In the diagram: 1. Valve body; 2. Connecting pipe; 3. Connecting disc; 4. Protective cap; 5. Fixing ring; 6. Limiting block; 7. Turntable; 8. Rubber plate; 9. Anti-slip strip; 10. Upper limit ring; 11. Mounting rod; 12. Elastic sheet; 13. Pressure rod; 14. Diaphragm roll; 15. Threaded rod; 16. Lower limit ring; 17. Fastening nut; 18. Guide rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides, for example Figures 1-6The illustrated pneumatic vacuum separation valve comprises a valve body 1, the bottom of the valve body 1 is provided with a connecting pipe 2, the end of the connecting pipe 2 is fixedly provided with a connecting disc 3, in order to avoid the pneumatic vacuum separation valve from being rubbed and collided during stacking or transportation, causing the connecting disc 3 of the pneumatic vacuum separation valve to be damaged, and in order to avoid foreign matters and water vapor from entering the valve body 1, causing the internal elements of the valve body 1 to be corroded and damaged, a mouth guard ring is arranged on the connecting disc 3, the mouth guard ring protects the connecting disc 3 of the pneumatic vacuum separation valve and blocks external foreign matters and water vapor from entering the valve body 1 through the connecting disc 3.

[0029] Specifically, the mouth guard ring comprises a mouth guard cover 4 and a fixing ring 5, the fixing ring 5 is fixedly installed at the middle of one side of the mouth guard cover 4, the fixing ring 5 is sleeved at the outer circle of the connecting disc 3, the fixing ring 5 is made of rubber material, the mouth guard cover 4 and the connecting disc 3 are movably attached, in use, the fixing ring 5 is pressed downward against the connecting disc 3, because the fixing ring 5 has a certain elasticity, the outer wall of the connecting disc 3 is covered by the fixing ring 5, the connecting disc 3 is protected by the installation of the mouth guard cover 4, avoiding the connecting disc 3 from being damaged by external impact, in addition to fixing the mouth guard cover 4 on the connecting disc 3, the installation of the fixing ring 5 can also avoid external foreign matters and water vapor from entering the valve body 1 through the connecting disc 3.

[0030] Considering that the existing mouth guard ring has a single form and is prone to falling off and not being tightly sealed, a limiting block 6 is fixedly arranged on the side of the mouth guard cover 4 away from the fixing ring 5, a rotating disc 7 is rotatably arranged at the outer circle of the limiting block 6, the rotating disc 7 and the mouth guard cover 4 are movably attached, the diameter of the rotating disc 7 is greater than that of the mouth guard cover 4, two groups of symmetrical auxiliary assemblies are arranged on the side of the rotating disc 7 close to the limiting block 6, the auxiliary assembly comprises an upper limiting ring 10, the upper limiting ring 10 is fixedly installed at the bottom close to the edge of the rotating disc 7, an installation rod 11 is fixedly arranged on the side of the upper limiting ring 10 away from the rotating disc 7, a film roll 14 is movably sleeved at the outer circle of the installation rod 11.

[0031] When the fixing ring 5 is installed in place, one end of the film on the film roll 14 is pulled out and adhered to the bottom surface of the connecting disc 3, the rotating disc 7 is rotated, driving the film roll 14 on the two installation rods 11 to rotate, so that the film is pulled out from the film roll 14 and adhered to the edges of the mouth guard cover 4 and the fixing ring 5, after the rotating disc 7 is rotated for several turns, the film on the film roll 14 is poked and cut off by fingers, and the lower half of the film is pressed toward the connecting disc 3 by fingers, so as to seal the connection between the connecting disc 3 and the fixing ring 5, block air, water vapor and foreign matters from entering the valve body 1 through the connection between the connecting disc 3 and the fixing ring 5, and at the same time, the connection strength between the mouth guard cover 4 and the connecting disc 3 is strengthened, avoiding the mouth guard ring from falling off, and the above solves the problems of the existing mouth guard ring having a single form, being prone to falling off and not being tightly sealed.

[0032] Considering that the film pulled out from the film roll 14 has a certain tension, it can be closely adhered to the edge of the protective cover 4 and the fixing ring 5, otherwise the film will be loose and ineffective, therefore, four annular limiting grooves are fixedly arranged in the internal structure layer of the mounting rod 11, the limiting grooves penetrate through the upper and lower surfaces of the mounting rod 11, the elastic sheets 12 are placed in the limiting grooves, the pressure rods 13 are movably connected in the limiting grooves, the pressure rods 13 and the elastic sheets 12 movably abut, one end of the pressure rod 13 movably extending out of the limiting groove movably abuts the film roll 14, after the film roll 14 rotates, the film is discharged, and since the elastic sheet 12 has elasticity, a certain pushing force is applied to the pressure rod 13, so that the pressure rods 13 around the mounting rod 11 uniformly apply the same pushing force to the film roll 14, thereby increasing the friction between the mounting rod 11 and the film roll 14, after the rotating disc 7 rotates, a larger force is required to drive the film roll 14 to rotate on the mounting rod 11, so that the pulled-out film has a certain tension, thereby being closely adhered to the edge of the protective cover 4 and the fixing ring 5, avoiding the problem of loose film.

[0033] Since the limiting grooves penetrate through the upper and lower surfaces of the mounting rod 11, after the elastic sheet 12 is used for a period of time, the elasticity will weaken, the elastic sheet 12 or the pressure rod 13 can be pulled out from the inside of the limiting groove for replacement, so that the pushing force of the pressure rod 13 to the film roll 14 can be adjusted, and the friction between the pressure rod 13 and the film roll 14 is within a reasonable numerical range.

[0034] In order for the film roll 14 to rotate at the outer circle of the pressure rod 13, a circular arc structure is arranged at one end of the pressure rod 13 movably abutting the film roll 14, so that the pressure rod 13 can top the film roll 14 while facilitating the rotation of the film roll 14.

[0035] When the film on the film roll 14 is used up, it needs to be replaced, therefore, a threaded rod 15 is fixedly arranged at the middle of the bottom of the mounting rod 11, two gaskets are sleeved at the outer circle of the threaded rod 15, a lower limiting ring 16 is arranged between the two gaskets, the upper and lower surfaces of the film roll 14 movably abut the upper limiting ring 10 and the lower limiting ring 16 respectively, a fastening nut 17 is threadedly connected at the outer circle of the threaded rod 15, the fastening nut 17 is located below the lower gasket, the fastening nut 17 is rotated and removed, thereby removing the lower limiting ring 16 and canceling the limitation on the lower end of the film roll 14, then the film roll 14 is pulled out from the bottom of the mounting rod 11, a new film roll 14 is installed, and the reverse operation is performed to install it, thereby improving the utilization rate of the film roll 14 dismounting convenience device.

[0036] When the rotating disc 7 rotates, in order to guide the pulled-out film, facilitate the later pressing of the lower half of the film to the direction of the connecting disc 3 by fingers, thereby sealing the connecting part of the connecting disc 3 and the fixing ring 5, two symmetrically arranged guide rods 18 are fixedly arranged at the edge of the rotating disc 7, so that after the rotating disc 7 rotates, the pulled-out film is bent to the direction of the connecting disc 3 under the guidance of the guide rods 18, facilitating the later pressing of the lower half of the film to the inside by fingers.

[0037] It should be noted that the distance between the bent ends of the two guide rods 18 is equal to the diameter of the protective cover 4, so that the guide rods 18 do not block the edge of the connecting disc 3, and the connecting disc 3 can be clamped with the fixing ring 5.

[0038] Further, the side of the rotating disc 7 away from the limiting block 6 is fixedly provided with a plurality of rubber plates 8 arranged in a ring shape and uniformly distributed, and through the rubber plates 8, when the valve body 1 is placed on the ground, the friction between the rotating disc 7 and the ground can be increased, avoiding the valve body 1 from easily falling due to external force.

[0039] Further, a plurality of anti-skid strips 9 are uniformly arranged at the outer circle of the rotating disc 7, and through the arrangement of the anti-skid strips 9, the rotating disc 7 can be conveniently rotated without slipping.

Claims

1. A pneumatic vacuum isolation valve comprising a valve body (1), characterized in that: The bottom of the valve body (1) is provided with a connecting pipe (2), the end of the connecting pipe (2) is fixedly provided with a connecting disc (3), and the connecting disc (3) is provided with a mouth guard ring; The mouth guard ring comprises a mouth guard cover (4) and a fixed ring (5), the fixed ring (5) is fixedly installed on the middle of one side of the mouth guard cover (4), the fixed ring (5) is sleeved on the outer ring of the connecting disc (3), the fixed ring (5) is made of rubber material, the mouth guard cover (4) and the connecting disc (3) are movably attached, the side of the mouth guard cover (4) away from the fixed ring (5) is fixedly provided with a limiting block (6), the outer ring of the limiting block (6) is rotatably provided with a rotating disc (7), the rotating disc (7) and the mouth guard cover (4) are movably attached, the diameter of the rotating disc (7) is greater than the diameter of the mouth guard cover (4), and the side of the rotating disc (7) close to the limiting block (6) is provided with two groups of symmetrically arranged auxiliary assemblies. The auxiliary assembly comprises an upper limiting ring (10), the upper limiting ring (10) is fixedly installed on the bottom close to the edge of the rotating disc (7), and the side of the upper limiting ring (10) away from the rotating disc (7) is fixedly provided with a mounting rod (11); the outer ring of the mounting rod (11) movably sleeved with a film roll (14).

2. A pneumatic vacuum isolation valve according to claim 1, characterized in that: Four annular limiting grooves are fixedly arranged in the inner structure layer of the mounting rod (11), the limiting grooves penetrate the upper and lower surfaces of the mounting rod (11), elastic sheets (12) are arranged in the limiting grooves, and pressure rods (13) are movably connected in the limiting grooves; the pressure rods (13) and the elastic sheets (12) are movably attached, and the end of the pressure rod (13) movably extending out of the limiting groove is movably attached with the film roll (14).

3. A pneumatic vacuum isolation valve according to claim 2, characterized in that: The end of the pressure rod (13) movably attached with the film roll (14) is provided in a circular arc structure.

4. A pneumatic vacuum isolation valve according to claim 2, characterized in that: A threaded rod (15) is fixedly arranged in the middle of the bottom of the mounting rod (11), two gaskets are sleeved on the outer ring of the threaded rod (15), a lower limiting ring (16) is arranged between the two gaskets, a fastening nut (17) is threadedly connected to the outer ring of the threaded rod (15), and the fastening nut (17) is located below the lower gasket.

5. A pneumatic vacuum isolation valve according to claim 1, characterized in that: The upper and lower surfaces of the film roll (14) are movably attached with the upper limiting ring (10) and the lower limiting ring (16) respectively.

6. A pneumatic vacuum isolation valve according to claim 1, characterized in that: The edge of the rotating disc (7) is fixedly provided with two symmetrically arranged guide rods (18), and the distance between the bent ends of the two guide rods (18) is equal to the diameter of the mouth guard cover (4).

7. A pneumatic vacuum isolation valve according to claim 6, characterized in that: A plurality of annular rubber plates (8) are fixedly arranged on the side of the rotating disc (7) away from the limiting block (6), and a plurality of anti-skid strips (9) are uniformly arranged on the outer ring of the rotating disc (7).

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