High-temperature sealing structure

Abstract

The utility model relates to the technical field of sealing structures, and discloses a high-temperature sealing structure which comprises a sealing pipe and a clamping sleeve ball valve, according to the high-temperature sealing structure, a first spring is compressed when a sliding block slides, and meanwhile the sliding block drives a connecting plate to be away from the axis of the sealing pipe together; six sets of connecting plates arranged in a circumferential array are expanded to be away from the axis of a sealing pipe through rotation of a rotary disc, then a flange of the clamping sleeve ball valve is attached to a fixing disc, then a poke rod is loosened, a first spring can push a sliding block to reset, and the flange of the clamping sleeve ball valve is clamped between the connecting plates and a pressing plate; and finally, bolts penetrate through holes in the pressing plates to be tightened with nuts in nut grooves, and flanges of different sizes can be fixed and installed through the length of the nut grooves and six sets of connecting plates which can be driven by the sliding blocks to expand in an equal proportion. And the situation that the mounting hole in the flange of the ferrule ball valve cannot be mounted due to position deviation or abrasion is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sealing structure technical field, concretely is a high temperature sealing structure. BACKGROUND

[0002] The sealing tube is a kind of sample preservation and sample processing device commonly used in scientific research and production field.At present, the sealing tube used has relatively single function, when being used in vacuum negative pressure environment, most sealing tubes adopt rubber sealing ring, so that the use environment of sealing container can only be used in normal temperature, when being used in high temperature environment, it can cause the damage of rubber sealing ring and cannot continuously keep sealing;And for the sealing container used in gaseous high pressure environment, most used sealing valve has small diameter, only suitable for gas inlet, so it can only be limited to seal and preserve gaseous material, cannot preserve solid material.

[0003] When sealing structure preserves gaseous material or carries out vacuum treatment, valve is generally needed to be connected, but after long time use of valve, screw hole or flange is abraded, or when replacing valve, flange requirement can be slightly deviated from sealing tube, so that valve cannot be tightly connected, thereby affecting the use of sealing tube. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a high temperature sealing structure to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a high temperature sealing structure, including sealing tube and sleeve ball valve, the sealing tube is positioned and installed with the control portion between sleeve ball valve, the control portion includes:

[0006] Fixed box, both ends of the sealing tube are penetrated by fixed box, and fixed box is fixedly connected with sealing tube, the inner side of fixed box is penetrated and fixedly connected with fixed disc, the surface of fixed disc is equipped with movable slot, but the fixed connection of sliding rod and sliding block is carried out simultaneously, and the sliding block is slidably connected with movable slot and positioning rod, so that when sliding rod is pushed by push groove, sliding rod will drive sliding block to slide along movable slot, the inner side of movable slot is penetrated and fixedly connected with positioning rod, the positioning rod is penetrated by sliding block and slidably connected, and the sliding block is located in the inner side of movable slot and slidably connected with movable slot.

[0007] Preferably, spring one is fixedly connected between the surface of sliding block and the inner side of movable slot, the surface of sliding block is fixedly connected with connecting plate, and nut groove is formed in the surface of connecting plate.

[0008] Preferably, a support rod passes through the surface of the connecting plate, the support rod passes through the connecting plate and is slidably connected, and a sliding rod is fixedly connected to the surface of the slider. When the slider slides, it will compress the spring, and at the same time, the slider will drive the connecting plate away from the axis of the sealing tube. By rotating the turntable, the six sets of circumferentially arrayed connecting plates expand away from the axis of the sealing tube, and then the flange of the ferrule ball valve is fitted with the fixed plate.

[0009] Preferably, a pressure plate is fixedly connected to the right side of the support rod. When the lever is released, the spring pushes the slider to reset, locking the flange of the ferrule ball valve between the connecting plate and the pressure plate. Finally, the bolts are tightened by passing through the holes in the pressure plate and the nuts in the nut grooves. Due to the length of the nut grooves and the six sets of connecting plates that can be proportionally expanded by the slider, flanges of different sizes can be fixed and installed. An anti-detachment plate is fixedly connected to the left side of the support rod.

[0010] Preferably, a second spring is fixedly connected to the surface of the anti-detachment plate, and the end of the second spring away from the anti-detachment plate is fixedly connected to the surface of the connecting plate.

[0011] Preferably, a turntable is rotatably connected through the inner side of the fixed box. The surface of the turntable is provided with a paving groove, and the slide rod passes through the paving groove. When the turntable rotates, the paving groove on its surface will rotate with the turntable. Then the paving groove will move the slide rod inserted inside it to slide. However, the slide rod is fixedly connected to the slider, and the slider is slidably connected to the movable groove and the positioning rod. So when the slide rod is moved by the paving groove, the slide rod will drive the slider to slide along the movable groove.

[0012] Preferably, a lever is fixedly connected to the surface of the turntable. During connection, the nut connected to the ferrule ball valve is pre-placed into the nut groove, and then the lever passing through the arc groove is moved in the direction of the arc groove, so that the lever rotates along the direction of the arc groove, thereby causing the lever to drive the turntable to rotate. The surface of the fixed box is provided with an arc groove, and the lever passes through the arc groove.

[0013] Compared with the prior art, the present invention provides a high-temperature sealing structure, which has the following beneficial effects:

[0014] 1. This high-temperature sealing structure, when the slider slides, compresses the spring. Simultaneously, the slider drives the connecting plate away from the axis of the sealing tube. The rotation of the turntable causes the six sets of circumferentially arrayed connecting plates to expand away from the axis of the sealing tube, thus bringing the flange of the ferrule ball valve into contact with the fixed plate. Then, releasing the actuating rod causes the spring to push the slider back to its original position, locking the flange of the ferrule ball valve between the connecting plate and the pressure plate. Finally, bolts are tightened through the holes on the pressure plate and the nuts in the nut grooves. Due to the length of the nut grooves and the six sets of connecting plates that can expand proportionally by being driven by the slider, flanges of different sizes can be fixed and installed, avoiding installation failure due to positional deviation or wear of the mounting holes on the flange of the ferrule ball valve.

[0015] 2. This high-temperature sealing structure, during the installation of the ferrule ball valve, if the flange thickness of the ferrule ball valve is different, can push the anti-detachment plate, causing the anti-detachment plate to compress the second spring, which in turn pushes the pressure plate. When the flange is placed between the anti-detachment plate and the pressure plate, the anti-detachment plate is released, and the compressed second spring pushes back the anti-detachment plate, causing the pressure plate to press the flange tightly, thus improving the stability of the ferrule ball valve during installation. Furthermore, the symmetrical ferrule ball valves can be connected to vacuum pipes and inflation pipes respectively. After opening one end of the ferrule ball valve, a vacuum can be drawn into the sealing tube. After vacuuming, the ferrule ball valve can be closed, and then the multi-functional sealing tube can be placed in a heating furnace for heat treatment of the sample. Alternatively, the ferrule ball valve can be opened to inflate the inside of the sealing tube, and then the multi-functional sealing tube can be placed in an ultrasonic bath for ultrasonic treatment of the sample. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a right-side enlarged structural schematic diagram of the sealing tube of this utility model;

[0018] Figure 3 This is a partially enlarged structural diagram of the sealing tube of this utility model;

[0019] Figure 4 This is an enlarged cross-sectional view of the fixed disk of this utility model.

[0020] In the diagram: 1. Sealing tube; 2. Control unit; 21. Fixing box; 22. Fixing plate; 23. Movable groove; 24. Positioning rod; 25. Slider; 26. Spring 1; 27. Connecting plate; 28. Nut groove; 29. ​​Pressure plate; 210. Support rod; 211. Anti-detachment plate; 212. Spring 2; 213. Turntable; 214. Actuating groove; 215. Actuating rod; 216. Arc groove; 217. Slide rod; 3. Compression fitting ball valve. Detailed Implementation

[0021] like Figures 1-4As shown, this utility model provides a technical solution: a high-temperature sealing structure, including a sealing tube 1 and a ferrule ball valve 3, wherein a control part 2 is provided between the sealing tube 1 and the ferrule ball valve 3 for easy positioning and installation, and the control part 2 includes:

[0022] The fixed box 21 is inserted through both ends of the sealing tube 1, and the fixed box 21 is fixedly connected to the sealing tube 1. The fixed plate 22 is inserted through and fixedly connected to the inner side of the fixed box 21. The surface of the fixed plate 22 has a movable groove 23, but the slide rod 217 is fixedly connected to the slider 25. At the same time, the slider 25 is slidably connected to the movable groove 23 and the positioning rod 24, so that when the slide rod 217 is moved by the actuating groove 214, the slide rod 217 will drive the slider 25 to slide along the movable groove 23. The inner side of the movable groove 23 is inserted through and fixedly connected to the positioning rod 24, and the positioning rod 24 is inserted through and slidably connected to the slider 25. The slider 25 is located inside the movable groove 23 and is slidably connected to the movable groove 23. A spring 26 is fixedly connected between the surface of the slider 25 and the inner side of the movable groove 23. A connecting plate 27 is fixedly connected to the surface of the slider 25, and a nut groove 28 is opened on the surface of the connecting plate 27. A support rod 210 passes through the surface of the connecting plate 27 and is slidably connected to it. A slide rod 217 is fixedly connected to the surface of the slider 25. When the slider 25 slides, it will compress the spring 26. At the same time, the slider 25 will drive the connecting plate 27 away from the axis of the sealing tube 1. The rotation of the turntable 213 causes the six sets of circumferentially arranged connecting plates 27 to expand away from the axis of the sealing tube 1, and then the flange of the ferrule ball valve 3 is fitted to the fixed plate 22. A pressure plate 29 is fixedly connected to the right side of the support rod 210. Releasing the lever 215 causes the spring 26 to push the slider 25 back to its original position, locking the flange of the ferrule ball valve 3 between the connecting plate 27 and the pressure plate 29. Finally, bolts are tightened through the holes in the pressure plate 29 and the nuts in the nut grooves 28. The length of the nut grooves 28 and the six sets of connecting plates 27 that expand proportionally with the slider 25 allow for the fixing and installation of flanges of different sizes. An anti-detachment plate 211 is fixedly connected to the left side of the support rod 210. A spring 212 is fixedly connected to the surface of the anti-detachment plate 211, with the end of the spring 212 away from the anti-detachment plate 211 fixedly connected to the surface of the connecting plate 27. A turntable 213 is rotatably connected to the inner side of the fixed box 21. The surface of the turntable 213 is provided with a moving groove 214. A sliding rod 217 passes through the moving groove 214. When the turntable 213 rotates, the moving groove 214 on its surface will rotate with the turntable 213. The moving groove 214 will then move the sliding rod 217 inserted inside it to slide. However, the sliding rod 217 is fixedly connected to the slider 25. At the same time, the slider 25 is slidably connected to the movable groove 23 and the positioning rod 24. So when the sliding rod 217 is moved by the moving groove 214, the sliding rod 217 will drive the slider 25 to slide along the movable groove 23.A lever 215 is fixedly connected to the surface of the turntable 213. During connection, the nut connected to the ferrule ball valve 3 is pre-placed into the nut groove 28. Then, the lever 215 passing through the arc groove 216 is moved in the direction of the arc groove 216, causing the lever 215 to rotate along the direction of the arc groove 216, thereby causing the lever 215 to drive the turntable 213 to rotate. The surface of the fixed box 21 is provided with an arc groove 216, and the lever 215 passes through the arc groove 216.

[0023] Based on the above implementation method, when using this high-temperature sealing structure, it is first necessary to connect the ferrule ball valve 3 to the sealing tube 1. During connection, the nut connected to the ferrule ball valve 3 is pre-placed into the nut groove 28. Then, the actuating rod 215 passing through the arc groove 216 is moved along the direction of the arc groove 216, causing the actuating rod 215 to rotate along the direction of the arc groove 216. This causes the actuating rod 215 to drive the turntable 213 to rotate. When the turntable 213 rotates, the actuating groove 214 on its surface will rotate along with the turntable 213. The actuating groove 214 will then move the sliding rod 217 inserted inside it to slide. However, the sliding rod 217 is fixedly connected to the slider 25, while the slider 25 is slidably connected to the movable groove 23 and the positioning rod 24. This allows the sliding rod 217 to be moved by the actuating groove 214, causing the slider 217 to move along the movable groove 23. The moving groove 23 slides, and the slider 25 compresses the spring 26 when it slides. At the same time, the slider 25 drives the connecting plate 27 away from the axis of the sealing tube 1. The rotation of the turntable 213 causes the six sets of circumferentially arrayed connecting plates 27 to expand away from the axis of the sealing tube 1. Then, the flange of the ferrule ball valve 3 is brought into contact with the fixed plate 22. Then, the actuating rod 215 is released, so that the spring 26 pushes the slider 25 to return to its original position, and the flange of the ferrule ball valve 3 is locked between the connecting plate 27 and the pressure plate 29. Finally, the bolts are tightened by passing through the holes on the pressure plate 29 and the nuts in the nut groove 28. Through the length of the nut groove 28 and the six sets of connecting plates 27 that can be driven by the slider 25 to expand proportionally, flanges of different sizes can be fixed and installed, avoiding the inability to install due to positional deviation or wear of the mounting holes on the flange of the ferrule ball valve 3.

[0024] Furthermore, during the installation of the ferrule ball valve 3, if the flange thickness of the ferrule ball valve 3 is different, the anti-detachment plate 211 can be pushed, causing the anti-detachment plate 211 to compress the second spring 212, which in turn pushes the pressure plate 29. After the flange is placed between the anti-detachment plate 211 and the pressure plate 29, the anti-detachment plate 211 is released, and the compressed second spring 212 will push back the anti-detachment plate 211, causing the pressure plate 29 to press the flange tightly, thus improving the stability of the ferrule ball valve 3 during installation. In addition, the symmetrical ferrule ball valve 3 can be connected to the vacuum tube and the inflation tube respectively. After opening one end of the ferrule ball valve 3, the sealing tube 1 can be evacuated. After evacuation, the ferrule ball valve 3 can be closed, and then the multifunctional sealing tube 1 can be placed in the heating furnace for heat treatment of the sample. Alternatively, the ferrule ball valve 3 can be opened to inflate the inside of the sealing tube 1, and then the multifunctional sealing tube 1 can be placed in the ultrasonic bath for ultrasonic treatment of the sample.

[0025] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A high-temperature sealing structure, comprising a sealing tube (1) and a ferrule ball valve (3), characterized in that: A control unit (2) is provided between the sealing tube (1) and the ferrule ball valve (3) for easy positioning and installation. The control unit (2) includes: a fixed box (21), through which both ends of the sealing tube (1) pass, and the fixed box (21) is fixedly connected to the sealing tube (1). A fixed plate (22) passes through and is fixedly connected to the inner side of the fixed box (21). A movable groove (23) is provided on the surface of the fixed plate (22). A positioning rod (24) passes through and is fixedly connected to the inner side of the movable groove (23). A slider (25) passes through the positioning rod (24) and is slidably connected. The slider (25) is located inside the movable groove (23) and is slidably connected to the movable groove (23).

2. The high-temperature sealing structure according to claim 1, characterized in that: A spring (26) is fixedly connected between the surface of the slider (25) and the inner side of the movable groove (23). A connecting plate (27) is fixedly connected to the surface of the slider (25), and a nut groove (28) is provided on the surface of the connecting plate (27).

3. The high-temperature sealing structure according to claim 2, characterized in that: A support rod (210) runs through the surface of the connecting plate (27), the support rod (210) runs through the connecting plate (27) and is slidably connected, and a sliding rod (217) is fixedly connected to the surface of the slider (25).

4. The high-temperature sealing structure according to claim 3, characterized in that: A pressure plate (29) is fixedly connected to the right side of the support rod (210), and an anti-detachment plate (211) is fixedly connected to the left side of the support rod (210).

5. A high-temperature sealing structure according to claim 4, characterized in that: A second spring (212) is fixedly connected to the surface of the anti-detachment plate (211), and the end of the second spring (212) away from the anti-detachment plate (211) is fixedly connected to the surface of the connecting plate (27).

6. A high-temperature sealing structure according to claim 3, characterized in that: The inner side of the fixed box (21) is connected to a turntable (213) that is rotatably connected. The surface of the turntable (213) is provided with a toggle groove (214), and the slide rod (217) passes through the toggle groove (214).

7. A high-temperature sealing structure according to claim 6, characterized in that: A lever (215) is fixedly connected to the surface of the turntable (213), and an arc-shaped groove (216) is opened on the surface of the fixed box (21), through which the lever (215) passes.

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