Multi-hole annular blowing sealing device capable of being leveled

Abstract

The utility model discloses a multi-hole annular blowing sealing device capable of being leveled. The multi-hole annular blowing sealing device comprises an air-tight sealing platform deck, a sealing ring, an air-tight sealing back plate, a horizontal adjusting plate and a fixing plate. The fixing plate is located at the bottommost layer; the horizontal adjusting plate is arranged on the fixing plate, and the fixing plate is provided with a limiting piece and an eccentric wheel which are used for limiting the horizontal adjusting plate. The air-tight sealing back plate is arranged above the fixing plate; the sealing ring is arranged above the air-tight sealing back plate; the air-tight sealing platform deck is arranged above the sealing ring; the air-tight sealing platform deck is used for loading a workpiece; the air-tight sealing platform deck, the air-tight sealing back plate and the horizontal adjusting plate are sequentially connected through fastening bolts; a pneumatic connector is arranged below the air-tight sealing platform deck and used for being connected with an air pump, and air-tight sealing of the back face of the workpiece is achieved by controlling positive air pressure and negative air pressure of the air pump. The utility model provides a leveling-adjustable porous annular blowing sealing device, which can realize air-tight sealing of the back surface of a workpiece in a liquid environment by adjusting positive and negative pressure values of air, prevent liquid from entering the back surface of the workpiece and realize single-sided liquid contact.

Description

Technical Field

[0001] The utility model relates to the technical field of air sealing devices, in particular to a levelable multi-hole annular air blowing sealing device. Background Art

[0002] With the continuous development and progress of industrial technology, the sealing requirements of various precision machinery and equipment are also increasing. Especially in harsh environments such as high temperature, high pressure or corrosiveness, the sealing performance of the equipment is directly related to the safe operation and service life of the equipment. Although traditional sealing methods, such as mechanical seals, can meet the sealing requirements to a certain extent, their sealing effect is not ideal under certain extreme working conditions. For example, in an acidic environment, traditional sealing materials are prone to aging, resulting in a decrease in sealing performance. Therefore, traditional sealing methods have been unable to meet the high requirements of modern industry for sealing performance. Based on the above reasons, a leveling porous annular air blowing sealing device is of great significance. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a levelable porous annular air blowing sealing device, which achieves air sealing on the back of the workpiece in a liquid environment by adjusting the positive and negative pressure values ​​of the gas, thereby preventing liquid from entering the back of the workpiece and achieving single-sided liquid contact.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a levelable porous annular air blowing sealing device, the sealing device comprising an air-sealing platform, a sealing ring, an air-sealing back plate, a horizontal adjustment plate and a fixed plate; the fixed plate is located at the bottom layer; the horizontal adjustment plate is arranged on the fixed plate, and the fixed plate is also provided with a limit plate and an eccentric wheel for limiting the position of the horizontal adjustment plate; the air-sealing back plate is arranged above the fixed plate; the sealing ring is arranged above the air-sealing back plate; the air-sealing platform is arranged above the sealing ring; the air-sealing platform is used to load workpieces; the air-sealing platform, the air-sealing back plate and the horizontal adjustment plate are connected in sequence by fastening bolts; a pneumatic joint is provided under the air-sealing platform, and the pneumatic joint is used to connect to an air pump, and the air sealing of the back of the workpiece is achieved by controlling the positive and negative air pressure of the air pump.

[0005] Furthermore, an air cavity is formed between the air-sealed carrier and the air-sealed back plate, and the pneumatic joint is connected to the air cavity; at least one circle of annular air groove is provided on the outside of the air-sealed carrier, and a plurality of blowing holes are evenly distributed in the air groove, and the blowing holes are connected to the air cavity.

[0006] Furthermore, the air cavity is divided into two inner and outer air cavities, the two air cavities are not connected to each other, the outer air cavity is connected to the positive-pressure gas, and the inner air cavity is connected to the negative-pressure gas; the negative-pressure gas is passed through the blowing hole to realize the adsorption and fixation of the workpiece on the air-sealed carrier; the positive-pressure gas acts on the edge of the workpiece through the blowing hole, and the liquid close to the side of the workpiece is blown away by positive-pressure blowing, thereby realizing the air seal on the back of the workpiece.

[0007] Furthermore, the sealing device also includes a leveling screw, which is passed through the airtight sealing platform and the airtight sealing back plate; the leveling screw is used to level the airtight sealing platform in a direction perpendicular to the fixing plate.

[0008] Furthermore, the leveling screws are respectively arranged above and below the airtight sealing platform; the fastening bolts are respectively arranged above and below the airtight sealing platform; and the fastening bolts are passed through the leveling screws.

[0009] Furthermore, the limiting plate includes a transverse limiting plate located above the horizontal adjustment plate and a longitudinal limiting plate located on the left side of the horizontal adjustment plate; the transverse limiting plate and the longitudinal limiting plate are in a vertical relationship; and the eccentric wheel is arranged at the lower right side of the horizontal adjustment plate.

[0010] Furthermore, there are two pneumatic joints, namely a positive pressure pneumatic joint and a negative pressure pneumatic joint. Both the positive pressure pneumatic joint and the negative pressure pneumatic joint are externally connected to an air pump, and an air seal is achieved on the back of the workpiece through a combination of positive pressure and negative pressure.

[0011] The beneficial effects of the utility model are as follows: compared with the prior art, the leveling porous annular air blowing sealing device provided by the utility model has the following advantages:

[0012] 1) The back of the workpiece is sealed by combining positive and negative pressure of gas, and the sealing effect is remarkable; and the positive and negative pressure values ​​can be adjusted according to the liquid pressure and flow rate to achieve a good sealing effect;

[0013] 2) The device is adjusted in the horizontal direction through the horizontal adjustment plate, and the device is adjusted in the vertical direction through the leveling screws; the dynamic leveling of the sealing device is achieved through the mutual cooperation between the horizontal adjustment plate and the leveling screws; the device structure is simple in design and the leveling operation is simple;

[0014] 3) The equipment adopts modular design, which is convenient for fixing and disassembling, and easy for adjustment, installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the sealing device provided by the utility model.

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the sealing device provided by the utility model.

[0017] Figure 3 This is a structural schematic diagram of the main structure of the sealing device provided by the utility model.

[0018] Figure 4 This is a schematic cross-sectional view of the main structure of the sealing device provided by the utility model.

[0019] Among them, 1-workpiece; 2-air-sealed carrier; 3-fastening bolt; 4-leveling screw; 5-sealing ring; 6-air-sealed back plate; 7-horizontal adjustment plate; 8-limiting plate; 9-fixing plate; 10-eccentric wheel; 11-pneumatic joint; 12-blowing hole; 13-air groove; 14-air cavity. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the contents disclosed in the present invention.

[0021] Example

[0022] like Figure 1-4 As shown, a levelable porous annular air blowing sealing device comprises an air-sealing platform 2, a sealing ring 5, an air-sealing back plate 6, a horizontal adjustment plate 7 and a fixed plate 9; the fixed plate 9 is located at the bottom layer; the horizontal adjustment plate 7 is arranged on the fixed plate 9, and the fixed plate 9 is also provided with a limit plate 8 and an eccentric wheel 10 for limiting the position of the horizontal adjustment plate 7; the air-sealing back plate 6 is arranged above the fixed plate 9; the sealing ring 5 is arranged above the air-sealing back plate 6; the air-sealing platform 2 is arranged above the sealing ring 5; the air-sealing platform 2 is used to load the workpiece 1; the air-sealing platform 2, the air-sealing back plate 6 and the horizontal adjustment plate 7 are connected in sequence by fastening bolts 3; a pneumatic joint 11 is provided under the air-sealing platform 2, and the pneumatic joint 11 is used to connect to an air pump, and the air sealing of the back of the workpiece 1 is achieved by controlling the positive and negative air pressure of the air pump.

[0023] In one embodiment, an air cavity 14 is formed between the airtight carrier 2 and the airtight back plate 6, and the pneumatic joint 11 is connected to the air cavity 14; at least one annular air groove 13 is provided on the outside of the airtight carrier 2, and a plurality of air blowing holes 12 are evenly distributed in the air groove 13, and the air blowing holes 12 are connected to the air cavity 14. When the pneumatic joint 11 is connected to an external air pump, the gas enters the air cavity 14 from the pneumatic joint 11, and then blows toward the back of the workpiece 1 from the air blowing holes 12. The design of the air groove 13 can make the blowing more uniform. Furthermore, the air cavity 14 is divided into two inner and outer air cavities, which are not connected to each other. The outer air cavity is connected to the positive-pressure gas, and the inner air cavity is connected to the negative-pressure gas. The negative-pressure gas is passed through the blowing hole 12 to achieve the adsorption and fixation of the workpiece 1 on the air-sealed carrier 2. The positive-pressure gas acts on the edge of the workpiece 1 through the blowing hole 12, and the liquid close to the side of the workpiece 1 is blown away by positive-pressure blowing, thereby achieving air sealing on the back of the workpiece 1.

[0024] In one embodiment, the sealing device further includes a leveling screw 4, which is passed through the airtight sealing platform 2 and the airtight sealing back plate 6; the leveling screw 4 is used to level the airtight sealing platform 2 in a direction perpendicular to the fixing plate 9. During adjustment, by rotating the leveling screw 4, a relative displacement occurs between the leveling screw 4 and the airtight sealing platform 2 in the vertical direction, thereby achieving a leveling effect in the vertical direction.

[0025] In one embodiment, the leveling screws 4 are respectively arranged above and below the airtight platform 2, so as to facilitate the adjustment of different tilt angles. The fastening bolts 3 are respectively arranged above and below the airtight platform 2, and the fastening bolts 3 are inserted into the leveling screws 4.

[0026] In one embodiment, the limit piece 8 includes a transverse limit piece located above the horizontal adjustment plate 7 and a longitudinal limit piece located on the left side of the horizontal adjustment plate 7; the transverse limit piece and the longitudinal limit piece are in a vertical relationship; the eccentric wheel 10 is arranged at the lower right side of the horizontal adjustment plate 7. Through the transverse limit piece, the longitudinal limit piece and the eccentric wheel 10, the horizontal adjustment plate 7 can be adjusted in the horizontal direction, the longitudinal direction and the angle on the horizontal plane, thereby driving the airtight sealing platform 2 to achieve the corresponding leveling effect.

[0027] In one of the embodiments, there are two pneumatic connectors 11, namely a positive-pressure pneumatic connector and a negative-pressure pneumatic connector, both of which are externally connected to an air pump; the positive-pressure pneumatic connector is connected to the outer air cavity, and positive-pressure gas is input into the outer air cavity; the negative-pressure pneumatic connector is connected to the inner air cavity, and negative-pressure gas is input into the inner air cavity; the air seal on the back of the workpiece 1 is achieved by the combination of positive pressure and negative pressure.

[0028] The sealing device works as follows:

[0029] A. Prepare for the experiment, check whether the device is installed firmly, fix the bottom end of the horizontal adjustment plate 7 by the limit plate 8 and the eccentric wheel 10, then install the airtight back plate 6 and the airtight carrier 2 in sequence, adjust the fastening bolts 3, check the sealing ring 5, level the device by the horizontal adjustment plate 7 and the leveling screws 4, connect the pneumatic joint 11 to the air pump (not shown), and adjust the air pressure.

[0030] B. Start the experiment, place the workpiece 1 on the airtight carrier 2, turn on the adjusted air pump according to the liquid environment of the workpiece 1, and seal the back of the workpiece 1 by combining positive and negative pressure.

[0031] C. After sealing is completed, turn off the air pump and remove workpiece 1.

[0032] D. The above two steps can be repeated. After the current set of experiments is completed, proceed to the next set of experimental operations.

[0033] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A levelable porous annular air blowing sealing device, characterized in that: The sealing device includes an airtight carrier, a sealing ring, an airtight back plate, a horizontal adjustment plate and a fixed plate; the fixed plate is located at the bottom layer; the horizontal adjustment plate is arranged on the fixed plate, and the fixed plate is also provided with a limit plate and an eccentric wheel for limiting the position of the horizontal adjustment plate; the airtight back plate is arranged above the fixed plate; the sealing ring is arranged above the airtight back plate; the airtight carrier is arranged above the sealing ring; the airtight carrier is used to load the workpiece; the airtight carrier, the airtight back plate and the horizontal adjustment plate are connected in sequence by fastening bolts; a pneumatic joint is provided under the airtight carrier, and the pneumatic joint is used to connect to an air pump, and the air sealing of the back of the workpiece is achieved by controlling the positive and negative air pressure of the air pump.

2. A levelable porous annular air blowing sealing device as claimed in claim 1, characterized in that: An air cavity is formed between the airtight carrier and the airtight back plate, and the pneumatic joint is connected to the air cavity; at least one annular air groove is provided on the outside of the airtight carrier, and a plurality of blowing holes are evenly distributed in the air groove, and the blowing holes are connected to the air cavity.

3. A levelable porous annular air blowing sealing device as claimed in claim 2, characterized in that: The air cavity is divided into two inner and outer air cavities, which are not connected to each other. The outer air cavity is connected to positive-pressure gas, and the inner air cavity is connected to negative-pressure gas. The negative-pressure gas adsorbs and fixes the workpiece on the air-sealed carrier through the blowing hole. The positive-pressure gas acts on the edge of the workpiece through the blowing hole, and blows away the liquid close to the side of the workpiece through positive-pressure blowing, thereby achieving air sealing on the back of the workpiece.

4. A levelable porous annular air blowing sealing device as claimed in claim 1, characterized in that: The sealing device also includes a leveling screw, which is penetrated through the airtight sealing platform and the airtight sealing back plate; the leveling screw is used to level the airtight sealing platform in a direction perpendicular to the fixing plate.

5. A levelable porous annular air blowing sealing device as claimed in claim 4, characterized in that: The leveling screws are respectively arranged above and below the airtight sealing platform; the fastening bolts are respectively arranged above and below the airtight sealing platform; and the fastening bolts are passed through the leveling screws.

6. A levelable porous annular air blowing sealing device as claimed in claim 1, characterized in that: The limiting piece includes a transverse limiting piece located above the horizontal adjustment plate and a longitudinal limiting piece located on the left side of the horizontal adjustment plate; the transverse limiting piece and the longitudinal limiting piece are in a vertical relationship; the eccentric wheel is arranged at the lower right side of the horizontal adjustment plate.

7. A levelable porous annular air blowing sealing device as claimed in claim 1, characterized in that: There are two pneumatic joints, namely a positive pressure pneumatic joint and a negative pressure pneumatic joint. Both the positive pressure pneumatic joint and the negative pressure pneumatic joint are externally connected to an air pump, and an air seal is achieved on the back of the workpiece through a combination of positive pressure and negative pressure.

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