Parking sealing device for bottom stirring sealing

Abstract

The invention relates to the technical field of sealing structures, and discloses a parking sealing device for bottom stirring sealing, which comprises a connecting lantern ring, locking bolts are in threaded connection with the interiors of a plurality of threaded grooves, two rubber rings are arranged on the inner side of the connecting lantern ring, and an annular column is integrally formed on the outer side of the connecting lantern ring. The outer side of the annular column is slidably connected with a sealing gasket, and the inner side of the connecting lantern ring is rotatably connected with an annular pressing frame. According to the parking sealing device for bottom stirring sealing, a driving device stops, a mounting bolt is twisted, a connecting flange is moved downwards to be away from a container, a push ring can be away from an annular pressing frame, at the moment, a sealing gasket can make contact with an opening in the container, a first O-shaped ring at the position of the annular pressing frame and a connecting lantern ring is exposed, and a third O-shaped ring and a pressing pad can be exposed and can also be replaced; the medium leakage condition can be reduced, the medium can be replaced under the condition that the medium is not transferred, the replacement efficiency can be improved, and the problems that the workload is increased, trouble is brought to overhaul or replacement, and the replacement efficiency is reduced are solved.

Description

Technical Field

[0001] This invention relates to the field of sealing structure technology, specifically to a parking sealing device for bottom stirring sealing. Background Technology

[0002] A mechanical seal is a device that prevents fluid leakage. It consists of at least one pair of end faces perpendicular to the axis of the rotary agitator, which are kept in contact and slide relative to each other under the action of fluid pressure and the elastic force (or magnetic force) of the compensation mechanism, as well as the cooperation of auxiliary seals. It is mainly used in rotating machinery. The function of the seal is to prevent the leakage of the sealed medium, while preventing external pollutants and impurities from entering the equipment cavity and thus contaminating the medium inside the equipment cavity. It has a wide range of applications in industrial production. Bottom-in agitators (where the medium is at the top and the agitator shaft is inserted into the medium from the bottom to agitate it) are particularly important in terms of agitation effect and equipment reliability due to their special application. The connection between the agitator shaft and the agitator container requires the mechanical seal mentioned above. Mechanical seals will wear out after a period of use and require maintenance or replacement. This will cause the medium inside the container to leak, requiring the medium to be transferred. This increases the workload and takes a lot of time, making maintenance or replacement more difficult and reducing replacement efficiency. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a parking sealing device for bottom stirring seals, which solves the problems mentioned in the background art, such as the wear and tear of mechanical seals after a period of use, requiring maintenance and replacement, leakage of the medium inside the container, needing to transfer the medium inside the container, increasing the workload, causing trouble for maintenance or replacement, and reducing replacement efficiency.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a parking sealing device for bottom stirring sealing, comprising a connecting collar, an annular frame slidably connected to the outer wall of the connecting collar, a plurality of threaded grooves being provided on the inner side of the annular frame, and locking bolts being threadedly connected to the interior of each of the plurality of threaded grooves, two rubber rings being provided on the inner side of the connecting collar, an annular column being integrally formed on the outer side of the connecting collar, a sealing gasket being slidably connected to the outer side of the annular column, and an annular pressure frame being rotatably connected to the inner side of the connecting collar; An O-ring 1 is provided between the annular pressure frame and the connecting collar. A push ring is rotatably connected to the outer side of the connecting collar. An O-ring 2 is provided between the connecting collar and the push ring. A connecting flange is rotatably connected to the outer side of the connecting collar. Multiple springs are fixedly installed on the inner side of the connecting flange. A circular groove and an annular groove are opened on the outer wall of the connecting flange. An O-ring 3 is provided on the inner side of the circular groove. A pressure pad is fitted on the inner side of the annular groove. Multiple guide rods are provided on the inner side of the connecting flange. A mounting bolt is inserted through the interior of the connecting flange. A sealing ring is movably fitted on the outer side of the connecting collar.

[0005] Preferably, the outer walls of the plurality of guide rods are slidably connected to the inner side of the push ring, and the side of the push ring away from the annular pressure frame is fixedly connected to the outer walls of the plurality of springs.

[0006] Preferably, the annular pressure frame is disposed above the push ring, and the outer wall of the push ring is slidably connected to the outer side of a plurality of O-rings.

[0007] Preferably, the side of the sealing ring furthest from the axis of the connecting sleeve is slidably connected to one side of the connecting flange.

[0008] Preferably, the outer wall of the connecting collar is rotatably connected to the outer wall of the push ring, and the clamping pad is located on the outer side away from the O-ring three.

[0009] Preferably, the connecting flange has three grooves on the side near the shaft center, and the inner sides of the three grooves are respectively movably fitted with the outer walls of the three O-rings.

[0010] Preferably, the plurality of mounting bolts are disposed on the outside of the pressure pad, and the outside of the sealing gasket is provided with multiple layers of rubber gaskets, which are made of heat-resistant and wear-resistant rubber material.

[0011] Compared with the prior art, the beneficial effects of the present invention are: 1. This bottom stirring seal uses a parking seal device. When the drive device stops, the drive shaft stops rotating. Tightening the mounting bolts moves the connecting flange away from the container, and the push ring will move away from the annular pressure frame. At this time, the sealing gasket will contact the inlet inside the container, achieving a seal. Even if there is leakage, it will only be a small amount of media leakage, which will not affect the final operation of the container. Once the O-ring at the annular pressure frame and the connecting collar is exposed, it can be replaced. The O-ring and the tight pressure gasket can also be exposed and replaced. This can reduce media leakage and improve replacement efficiency without transferring the media. It solves the problem of increased workload, troublesome maintenance or replacement, and reduced replacement efficiency.

[0012] 2. This bottom stirring sealing device uses a drive shaft to rotate the connecting collar, which in turn rotates the annular pressure frame. The annular columns at the top of the connecting collar are connected together, allowing the annular columns to rotate inside the sealing gasket. Only a small amount of medium flows into the outside of the connecting collar at the connection point. This small amount of medium is blocked by O-rings 1 and 2, preventing the medium from flowing out through the gap between the connecting flanges. When the drive shaft stops rotating, the spring force moves the push ring upward, which in turn squeezes the annular pressure frame upward, causing O-ring 1 to deform and achieve a tight fit, thus achieving a secure seal. Furthermore, O-ring 2 has three layers, which can better seal the device.

[0013] 3. This bottom-stirring sealing device for parking involves first inserting the connecting collar into the bottom of the agitator, so that the connecting flange fits against the outside of the agitator. The annular pressure frame extends into the inside of the agitator, connecting the sealing gasket to the inside of the agitator. The rubber ring and annular column are then fitted against the bottom of the agitator to tighten the locking bolts, thereby compressing and fixing the connecting flange to prevent media leakage at the connection. Finally, the locking bolts are passed through the inside of the annular frame to tighten and fix the connecting collar to the drive shaft, thus securing the connecting collar and completing the assembly of the sealing device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the annular frame and related structures of the present invention; Figure 3 This is a side view of the connecting flange and its related structures of the present invention; Figure 4 This is a three-dimensional schematic diagram of the annular pressure frame and its related structures of the present invention; Figure 5 This is a front sectional view of the annular pressure frame of the present invention; Figure 6 This is a frontal sectional view of the structure of the present invention.

[0015] In the diagram: 1. Connecting collar; 2. Annular frame; 3. Locking bolt; 4. Rubber ring; 5. Annular post; 6. Sealing gasket; 7. Annular pressure frame; 8. O-ring one; 9. Push ring; 10. O-ring two; 11. Mounting bolt; 12. Sealing ring; 13. Connecting flange; 14. Spring; 15. Circular groove; 16. Annular groove; 17. O-ring three; 18. Tightening pad; 19. Guide rod. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example: Please refer to Figures 1-6. A parking sealing device for bottom stirring includes a connecting collar 1, an annular frame 2 slidably connected to the outer wall of the connecting collar 1, multiple threaded grooves are opened on the inner side of the annular frame 2, and locking bolts 3 are threadedly connected to the interior of each of the multiple threaded grooves. Two rubber rings 4 are provided on the inner side of the connecting collar 1. An annular column 5 is integrally formed on the outer side of the connecting collar 1. A sealing gasket 6 is slidably connected to the outer side of the annular column 5. An annular pressure frame 7 is rotatably connected to the inner side of the connecting collar 1. An O-ring 8 is provided between the annular pressure frame 7 and the connecting sleeve 1. A push ring 9 is rotatably connected to the outside of the connecting sleeve 1. An O-ring 10 is provided between the connecting sleeve 1 and the push ring 9. A connecting flange 13 is rotatably connected to the outside of the connecting sleeve 1. Multiple springs 14 are fixedly installed on the inside of the connecting flange 13. A circular groove 15 and an annular groove 16 are opened on the outer wall of the connecting flange 13. An O-ring 17 is provided on the inside of the circular groove 15. A pressure pad 18 is fitted on the inside of the annular groove 16. Multiple guide rods 19 are provided on the inside of the connecting flange 13. A mounting bolt 11 is passed through the inside of the connecting flange 13. A sealing ring 12 is movably sleeved on the outside of the connecting sleeve 1. Specifically, when the device is to be used, first insert the connecting collar 1 into the bottom of the agitator, then make the connecting flange 13 fit against the outside of the agitator, and the connecting collar 1 connects to the annular pressure frame 7 and extends into the inside of the agitator, so that the sealing gasket 6 is connected to the inside of the agitator. Then, fit the rubber ring 4 and the annular column 5 against the bottom of the agitator to tighten the locking bolt 3, thereby achieving the effect of squeezing and fixing the connecting flange 13, so as to prevent the medium from leaking out at the connection. Then, pass the locking bolt 3 through the inside of the annular frame 2 to tighten and fix the connecting collar 1 and the drive shaft, thereby achieving the effect of fastening the connecting collar 1 and completing the assembly of the sealing device. When the device is running, the drive shaft drives the connecting collar 1 to rotate, which in turn drives the annular pressure frame 7 to rotate. The annular post 5 at the top of the connecting collar 1 is connected together, allowing the annular post 5 to rotate inside the sealing gasket 6. This ensures that the device does not affect the rotation of the connecting collar 1, and only a small amount of medium flows into the outside of the connecting collar 1 at the connection point. This small amount of medium is blocked by O-ring 1 8 and O-ring 2 10 to prevent the medium from flowing out through the gap between the connecting flanges 13. When the drive shaft stops rotating, the spring 14 will cause the push ring 9 to move upward. The push ring 9 will squeeze the annular pressure frame 7 upward, causing O-ring 1 8 to deform, achieving a tight fit and a tight seal. Furthermore, O-ring 2 10 has three layers, which can better seal the device. In the event of a leak, the drive unit is stopped, the drive shaft stops rotating, the mounting bolt 11 is turned, and the connecting flange 13 is moved down. The connecting flange 13 will move away from the container. At this time, the push ring 9 moves down under the action of the spring 14. The push ring 9 will move away from the annular pressure frame 7. At this time, the sealing gasket 6 will contact the opening inside the container, which can achieve a seal. If there is a leak, it will be a small amount of medium leakage, which will not affect the final operation of the container. Then, the O-ring 1 8 at the annular pressure frame 7 and the connecting collar 1 will be exposed and can be replaced. The O-ring 3 17 and the pressure gasket 18 can also be exposed and replaced. This can reduce the leakage of medium and can be replaced without transferring the medium, which can improve the replacement efficiency. Another implementation method: The rubber ring 4, sealing ring 12 and O-ring 2 10 in the device need to be disassembled and replaced. After the O-ring 1 8, O-ring 3 17 and pressure pad 18 are replaced, the leakage can be reduced. In the embodiment: the outer walls of the multiple guide rods 19 are slidably connected to the inner side of the push ring 9, and the side of the push ring 9 away from the annular pressure frame 7 is fixedly connected to the outer wall of the multiple springs 14. Specifically, the guide rod 19 is slidably connected to the inner side of the push ring 9 to achieve the effect of stable movement of the guide rod 19 inside the push ring 9. The side of the push ring 9 away from the annular pressure frame 7 is fixedly connected to multiple springs 14 to achieve the effect of squeezing and pushing the push ring 9. This can squeeze the annular pressure frame 7 to move upward, thereby squeezing the O-ring 8 and achieving a sealing effect, reducing the entry of medium into the push ring 9 and the inner side of the connecting flange 13, thus preventing medium leakage. In the embodiment: the annular pressure frame 7 is disposed above the push ring 9, and the outer wall of the push ring 9 is slidably connected to the outer side of a plurality of O-rings 10; Specifically, the annular pressure frame 7 is positioned above the push ring 9, which can achieve the effect of squeezing the annular pressure frame 7. The push ring 9 is slidably connected with multiple O-rings 10, which can achieve a sealing effect, prevent the medium from leaking out between the push ring 9 and the connecting flange 13, and effectively prevent the medium from leaking out. In this embodiment: the side of the sealing ring 12 away from the axis of the connecting collar 1 is slidably connected to the side of the connecting flange 13; Specifically, the side of the sealing ring 12 away from the axis of the connecting collar 1 slides to connect with the side of the connecting flange 13, which can achieve a stable sealing effect between the connecting collar 1 and the connecting flange 13, and can also achieve a sealing effect between the connecting flange 13. In the embodiment: the outer wall of the connecting collar 1 is rotatably connected to the outer wall of the push ring 9, and the pressure pad is located on the outside away from the O-ring 3 17; Specifically, the outer wall of the connecting collar 1 is rotatably connected to the outer wall of the push ring 9 to achieve the effect of stable rotation of the push ring 9, and the pressure pad is set on the outside away from the O-ring 17 to achieve the effect of pressure, fixation and sealing. In the embodiment: the connecting flange 13 has three grooves on the side near the shaft center, and the inner sides of the three grooves are respectively movably fitted with the outer walls of the three O-rings 10. Specifically, the connecting flange 13 has three grooves on the side near the shaft. These three grooves are used to hide the O-ring 2 10, which can achieve the effect of tightening and pressing the O-ring 2 10 and prevent the O-ring 2 10 from moving up and down. In the embodiment: multiple mounting bolts 11 are arranged on the outside of the pressure pad 18, and multiple layers of rubber pads are arranged on the outside of the sealing gasket 6, and the multiple layers of rubber pads are made of heat-resistant and wear-resistant rubber material. Specifically, multiple mounting bolts 11 are set on the outside of the pressure pad 18 to facilitate the fastening of the connecting flange 13, and to achieve the effect of fastening the connecting flange. Multiple rubber gaskets are set on the outside of the sealing gasket 6 to facilitate the sealing effect. The multi-layer rubber gaskets are made of heat-resistant and wear-resistant rubber material, which can resist heat and corrosion. Working principle: When the drive device stops, the drive shaft stops rotating. Twist the mounting bolt 11, and the connecting flange 13 moves away from the container. The push ring 9 will move away from the annular pressure frame 7. At this time, the sealing gasket 6 will contact the inlet inside the container, achieving a seal. If leakage occurs, it will be a small amount of medium leakage, which will not affect the final operation of the container. The O-ring 8 at the annular pressure frame 7 and the connecting collar 1 will be exposed and can be replaced. The O-ring 17 and the pressure gasket 18 can also be exposed and replaced. This reduces medium leakage. Compared with related technologies, the parking sealing device for bottom stirring provided by this invention has the following beneficial effects: it can reduce medium leakage, can be replaced without transferring the medium, can improve replacement efficiency, and solves the problem of increased workload, troublesome maintenance or replacement, and reduced replacement efficiency.

[0018] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A parking sealing device for bottom stirring sealing, comprising a connecting collar (1), characterized in that: The outer wall of the connecting collar (1) is slidably connected to an annular frame (2). Multiple threaded grooves are opened on the inner side of the annular frame (2), and locking bolts (3) are threadedly connected inside the multiple threaded grooves. Two rubber rings (4) are provided on the inner side of the connecting collar (1). An annular column (5) is integrally formed on the outer side of the connecting collar (1). A sealing gasket (6) is slidably connected to the outer side of the annular column (5). An annular pressure frame (7) is rotatably connected to the inner side of the connecting collar (1). An O-ring 1 (8) is provided between the annular pressure frame (7) and the connecting sleeve (1). A push ring (9) is rotatably connected to the outside of the connecting sleeve (1). An O-ring 2 (10) is provided between the connecting sleeve (1) and the push ring (9). A connecting flange (13) is rotatably connected to the outside of the connecting sleeve (1). Multiple springs (14) are fixedly installed on the inside of the connecting flange (13). A circular groove (15) and an annular groove (16) are provided on the outer wall of the connecting flange (13). An O-ring 3 (17) is provided on the inside of the circular groove (15). A pressure pad (18) is fitted on the inside of the annular groove (16). Multiple guide rods (19) are provided on the inside of the connecting flange (13). An installation bolt (11) is provided through the inside of the connecting flange (13). A sealing ring (12) is movably sleeved on the outside of the connecting sleeve (1).

2. The parking sealing device for bottom stirring sealing according to claim 1, characterized in that: The outer walls of the multiple guide rods (19) are slidably connected to the inner side of the push ring (9), and the side of the push ring (9) away from the annular pressure frame (7) is fixedly connected to the outer walls of the multiple springs (14).

3. The parking sealing device for bottom stirring sealing according to claim 1, characterized in that: The annular pressure frame (7) is positioned above the push ring (9), and the outer wall of the push ring (9) is slidably connected to the outer side of a plurality of O-rings (10).

4. The parking sealing device for bottom stirring sealing according to claim 1, characterized in that: The side of the sealing ring (12) away from the axis of the connecting collar (1) is slidably connected to one side of the connecting flange (13).

5. A parking sealing device for bottom stirring sealing according to claim 1, characterized in that: The outer wall of the connecting collar (1) is rotatably connected to the outer wall of the push ring (9), and the pressing pad is located on the outside away from the O-ring three (17).

6. A parking sealing device for bottom stirring sealing according to claim 1, characterized in that: The connecting flange (13) has three grooves on the side near the shaft, and the inner sides of the three grooves are respectively movably fitted with the outer walls of the three O-rings (10).

7. A parking sealing device for bottom stirring sealing according to claim 1, characterized in that: Multiple mounting bolts (11) are provided on the outside of the pressure pad (18), and the outside of the sealing gasket (6) is provided with multiple layers of rubber pads, which are made of heat-resistant and wear-resistant rubber material.

Images