Convenient-to-assemble sealing mechanism for reaction kettle

Abstract

The invention discloses a convenient-to-assemble sealing mechanism for a reaction kettle. The convenient-to-assemble sealing mechanism comprises a positioning disc, a driving shaft, an upper-layer sealing ring, a lower-layer sealing ring, an annular gland and a jacking assembly, the lower-layer sealing ring can be installed in a lateral butt joint mode and does not need to be sleeved from the upper end of the driving shaft, the upper-layer sealing ring can be installed in a lateral butt joint mode and does not need to be sleeved from the upper end of the driving shaft, and therefore the lower-layer sealing ring and the upper-layer sealing ring are convenient to install, and meanwhile butt joints of the lower-layer sealing ring are distributed front and back. Butt joints of the upper-layer sealing ring are distributed left and right, so that the butt joints of the lower-layer sealing ring can be reinforced and sealed through the upper-layer sealing ring, and stable sealing installation of the sealing device can be achieved.

Description

Technical Field

[0001] The present invention belongs to the field of manufacturing reaction kettle sealing devices, and particularly relates to a sealing mechanism for an assembly-convenient reaction kettle. Background Art

[0002] In the modern production process, reaction kettles are widely used in petroleum, chemical industry, rubber, pesticides, dyes, medicine, and food to complete processes such as vulcanization, nitrification, hydrogenation, alkylation, polymerization, and condensation. Once a reaction kettle leaks, it will affect product quality, pollute the environment, and even cause personal injury to operators. Therefore, the sealing performance of the reaction kettle is one of the most important links in the entire research and development process of the reaction kettle. Currently, reaction kettles generally match with stirring drive shafts, and the stirring drive shafts are generally sleeved and sealed through sealing rings and pressed and sealed through gland covers. After using for a period of time, the sealing rings need to be replaced. However, when replacing, first, the gland cover needs to be disassembled, and then the sealing ring needs to be pulled out upward from the stirring drive shaft. The upper end of the stirring drive shaft often has external structures such as drive mechanisms, making it very inconvenient to pull out the sealing ring upward for disassembly. It is necessary to disassemble the external structures above the stirring drive shaft, which is rather cumbersome. Moreover, the sealing ring is pressed inside the positioning disk, making it inconvenient to extract. Therefore, it is necessary to upgrade and transform the structure. Summary of the Invention

[0003] Aiming at the deficiencies of the above-mentioned prior art, the problem solved by the present invention is to provide a sealing mechanism for an assembly-convenient reaction kettle that is convenient for disassembly and installation.

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows: A sealing mechanism for an assembly-convenient reaction kettle, including a positioning disk, a drive shaft, an upper sealing ring, a lower sealing ring, an annular gland cover, and a top pressing assembly; an annular step surface is provided at the upper end inside the positioning disk; the upper sealing ring and the lower sealing ring are installed on the annular step surface; the upper sealing ring is distributed above the lower sealing ring; the drive shaft rotates through the positioning disk, and the outer circumference of the drive shaft is in sealing contact with the inner circumferences of the upper sealing ring and the lower sealing ring; the annular gland cover is installed at the upper end of the positioning disk, and the lower side of the annular gland cover presses against the upper end of the upper sealing ring; the lower sealing ring includes a left arc-shaped member and a right arc-shaped member; the left arc-shaped member and the right arc-shaped member are butted and clamped around the outer circumference of the drive shaft, and a butt joint seam is formed between the left arc-shaped member and the right arc-shaped member in the front and rear distribution; the upper sealing ring includes a front arc-shaped member and a rear arc-shaped member; the front arc-shaped member and the rear arc-shaped member are butted and clamped around the outer circumference of the drive shaft, and a butt joint seam is formed between the front arc-shaped member and the rear arc-shaped member in the left and right distribution; a top pressing assembly is installed on each side of the positioning disk; the top pressing assembly pushes the lower sealing ring and the upper sealing ring upward.

[0005] Furthermore, the pressing assembly includes an ejecting column, a driving rod, and an extension rod; pressing channels are respectively arranged on both sides of the positioning disk, and driving grooves are respectively opened on the outer sides of the pressing channels; the upper ends of the pressing channels extend to the annular step surface; an ejecting column is respectively installed in each of the pressing channels; a driving rod is respectively installed in each of the driving grooves; an extension rod is installed on one side of the ejecting column; the outer end of the extension rod extends outward and enters the driving groove; the outer end of the extension rod is slidably clamped up and down in the driving groove; the driving rod rotates to drive the extension rod to move up and down, and the extension rod drives the ejecting column to move up and down.

[0006] Furthermore, a floating threaded cylinder is arranged on the extension rod; the driving rod is threadedly connected with the floating threaded cylinder.

[0007] Furthermore, a moving clamping block is arranged at the outer end of the extension rod; a longitudinal limiting groove is arranged on the outer side wall of the driving groove; the moving clamping block is slidably clamped up and down on the longitudinal limiting groove.

[0008] Furthermore, adjusting openings are respectively opened on both sides of the positioning disk; the upper end of the driving rod extends into the adjusting opening.

[0009] Furthermore, both the upper sealing ring and the lower sealing ring are made of elastic rubber material.

[0010] Furthermore, a pressing ring convex is arranged around the lower side of the annular pressing cover; the pressing ring convex is inserted into the annular step surface and presses against the upper end of the upper sealing ring.

[0011] Furthermore, the periphery of the annular pressing cover is rotationally and tightly connected to the upper end of the positioning disk through a screw.

[0012] The beneficial effects of the present invention are as follows: 1. The lower sealing ring of the present invention includes a left arc-shaped member and a right arc-shaped member. The left arc-shaped member and the right arc-shaped member are butted left and right to hoop around the outer periphery of the driving shaft. The left arc-shaped member and the right arc-shaped member are butted to form a butt joint seam distributed front and back. In this way, the lower sealing ring can be installed by side butt joint without being sleeved from the upper end of the driving shaft. The upper sealing ring of the present invention includes a front arc-shaped member and a rear arc-shaped member. The front arc-shaped member and the rear arc-shaped member are butted front and back to hoop around the outer periphery of the driving shaft. The front arc-shaped member and the rear arc-shaped member are butted to form a butt joint seam distributed left and right. In this way, the upper sealing ring can be installed by side butt joint without being sleeved from the upper end of the driving shaft. In this way, the installation of the lower sealing ring and the upper sealing ring is convenient. At the same time, the butt joint seam of the lower sealing ring is distributed front and back, and the butt joint seam of the upper sealing ring is distributed left and right. In this way, the butt joint seam of the lower sealing ring can be reinforced and sealed by the upper sealing ring, so as to realize the stable sealing installation of the present invention.

[0013] 2. The present invention is additionally provided with a top pressing component for convenient disassembly. The present invention rotates the driving rod to drive the extension rod to move upward. The upward movement of the extension rod drives the ejector post to move upward, so that the ejector post pushes the lower sealing ring upward. In this way, the lower sealing ring and the upper sealing ring can be conveniently pushed upward, facilitating disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention.

[0015] Figure 2 For the present invention Figure 1 is a schematic structural diagram of one side.

[0016] Figure 3 is a schematic structural diagram of the ejector post of the present invention pushing the lower sealing ring and the upper sealing ring upward.

[0017] Figure 4 is a schematic top view structural diagram of the upper sealing ring and the lower sealing ring of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following further details the content of the present invention with reference to the accompanying drawings.

[0019] As Figures 1 to 4 shown, a sealing mechanism for an assembly - convenient reaction kettle includes a positioning disk 1, a driving shaft 2, an upper sealing ring 3, a lower sealing ring 4, an annular gland 5, and a top - pressing component 6; an annular step surface 11 is provided at the upper end inside the positioning disk 1; the upper sealing ring 3 and the lower sealing ring 4 are installed on the annular step surface 11; the upper sealing ring 3 is distributed above the lower sealing ring 4; the driving shaft 2 rotates and penetrates through the positioning disk 1, and the outer periphery of the driving shaft 2 is in sealed contact with the inner peripheries of the upper sealing ring 3 and the lower sealing ring 4; the annular gland 5 is installed at the upper end of the positioning disk 1, and the lower side of the annular gland 5 presses against the upper end of the upper sealing ring 3; the lower sealing ring 4 includes a left - hand arc - shaped part 41 and a right - hand arc - shaped part 42; the left - hand arc - shaped part 41 and the right - hand arc - shaped part 42 are butted and clamped around the outer periphery of the driving shaft 2, and a butt joint seam distributed front - to - back is formed at the butt joint of the left - hand arc - shaped part 41 and the right - hand arc - shaped part 42; the upper sealing ring 3 includes a front - side arc - shaped part 31 and a rear - side arc - shaped part 32; the front - side arc - shaped part 31 and the rear - side arc - shaped part 32 are butted and clamped around the outer periphery of the driving shaft 2, and a butt joint seam distributed left - to - right is formed at the butt joint of the front - side arc - shaped part 31 and the rear - side arc - shaped part 32; one top - pressing component 6 is installed on each side of the positioning disk 1; the top - pressing component 6 pushes the lower sealing ring 4 and the upper sealing ring 3 upward.

[0020] As Figures 1 to 4As shown, in order to facilitate the ejection and disassembly of the lower sealing ring 4 and the upper sealing ring 3, further, the pressing assembly 6 includes an ejection post 61, a driving rod 62, and an extension rod 63; pressing channels 12 are respectively provided on both sides of the positioning disk 1, and driving grooves 13 are respectively opened on the outer sides of the pressing channels 12; the upper ends of the pressing channels 12 extend to the annular step surface 11; an ejection post 61 is respectively installed in each of the pressing channels 12; a driving rod 62 is respectively installed in each of the driving grooves 13; an extension rod 63 is installed on one side of the ejection post 61; the outer end of the extension rod 63 extends outward and enters the driving groove 13; the outer end of the extension rod 63 is slidably clamped up and down in the driving groove 13; the driving rod 62 rotates to drive the extension rod 63 to move up and down, and the extension rod 63 drives the ejection post 61 to move up and down. Further, a floating threaded cylinder 64 is provided on the extension rod 63; the driving rod 62 is threadedly connected to the floating threaded cylinder 64. Further, a moving clamping block 631 is provided at the outer end of the extension rod 63; a longitudinal limiting groove 131 is provided on the outer side wall of the driving groove 13; the moving clamping block 631 is slidably clamped up and down on the longitudinal limiting groove 131. Further, adjusting openings 14 are respectively opened on both sides of the positioning disk 1; the upper end of the driving rod 62 extends into the adjusting opening 14. Thus, by rotating the driving rod 62, the floating threaded cylinder 64 is driven to move, and the floating threaded cylinder 64 drives the extension rod 63 to move up and down.

[0021] As Figures 1 to 4 shown, further, both the upper sealing ring 3 and the lower sealing ring 4 are made of elastic rubber material. Further, a pressing ring convex 51 is provided around the lower side of the annular pressing cover 5; the pressing ring convex 51 is inserted into the annular step surface 11 and presses against the upper end of the upper sealing ring 3. Further, the periphery of the annular pressing cover 5 is rotationally and tightly connected to the upper end of the positioning disk 1 through a screw 52.

[0022] The lower sealing ring 4 of the present invention includes a left-side arc-shaped member 41 and a right-side arc-shaped member 42, and the left-side arc-shaped member 41 and the right-side arc-shaped member 42 are butt-jointed with each other on the outside of the driving shaft 2. The left-side arc-shaped member 41 and the right-side arc-shaped member 42 are butt-jointed with each other to form a butt joint distributed front and back. In this way, the lower sealing ring 4 can be butt-jointed and installed sideways without sleeve-jointing from the upper end of the driving shaft 2. The upper sealing ring 3 of the present invention includes a front-side arc-shaped member 31 and a rear-side arc-shaped member 32, and the front-side arc-shaped member 31 and the rear-side arc-shaped member 32 are butt-jointed with each other front and back at On the outside of the driving shaft 2, the front arc-shaped part 31 and the rear arc-shaped part 32 are butted to form a butt joint distributed on the left and right, so that the upper sealing ring 3 can be installed by side butt joint without being sleeved from the upper end of the driving shaft 2, so that the lower sealing ring 4 and the upper sealing ring 3 are convenient to install. At the same time, the butt joint of the lower sealing ring 4 is distributed front to back, and the butt joint of the upper sealing ring 3 is distributed left to right, so that the butt joint of the lower sealing ring 4 can be reinforced and sealed by the upper sealing ring 3, so that the stable sealing installation of the present invention can be achieved.

[0023] The present invention adds a pressing assembly 6 for convenient disassembly. The present invention rotates the driving rod 62 and drives the extension rod 63 to move upward. The extension rod 63 moves upward and drives the ejection column 61 to move upward, so that the ejection column 61 ejects the lower sealing ring 4 upward. In this way, the lower sealing ring 4 and the upper sealing ring 3 can be easily ejected upward. After ejection, they can be directly disassembled left and right and front and back, which is convenient for disassembly and replacement.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing mechanism for an assembly - convenient reactor, characterized in that It includes a positioning disk, a driving shaft, an upper sealing ring, a lower sealing ring, an annular gland, and a top pressing assembly; an annular step surface is provided at the upper end inside the positioning disk; the upper sealing ring and the lower sealing ring are installed on the annular step surface; the upper sealing ring is distributed above the lower sealing ring; the driving shaft rotatably penetrates through the positioning disk, and the outer periphery of the driving shaft is in sealing contact with the inner peripheries of the upper sealing ring and the lower sealing ring; the annular gland is installed at the upper end of the positioning disk, and the lower side of the annular gland presses against the upper end of the upper sealing ring; the lower sealing ring includes a left arc-shaped member and a right arc-shaped member; the left arc-shaped member and the right arc-shaped member are butted left and right to hoop around the outer periphery of the driving shaft, and a butt joint seam is formed between the left arc-shaped member and the right arc-shaped member in the front and rear distribution; the upper sealing ring includes a front arc-shaped member and a rear arc-shaped member; The front arc-shaped member and the rear arc-shaped member are butted front and rear to hoop around the outer periphery of the driving shaft, and a butt joint seam is formed between the front arc-shaped member and the rear arc-shaped member in the left and right distribution; a top pressing assembly is installed on each side of the positioning disk; the top pressing assembly pushes out the lower sealing ring and the upper sealing ring upward.

2. The sealing mechanism for the conveniently assembled reactor according to claim 1, characterized in that, The top pressing assembly includes a top-out column, a driving rod, and an extension rod; top pressing channels are respectively provided on both sides of the positioning disk, and driving grooves are respectively opened on the outer sides of the top pressing channels; the upper ends of the top pressing channels extend to the annular step surface; a top-out column is respectively installed in each of the top pressing channels; a driving rod is respectively installed in each of the driving grooves; an extension rod is installed on one side of the top-out column; the outer end of the extension rod extends outward and enters the driving groove; the outer end of the extension rod is slidably clamped up and down in the driving groove; the driving rod rotates to drive the extension rod to move up and down, and the extension rod drives the top-out column to move up and down.

3. The sealing mechanism for the assembly - convenient reactor according to claim 2, characterized in that, A floating threaded cylinder is provided on the extension rod; the driving rod is threadedly connected with the floating threaded cylinder.

4. The sealing mechanism for the assembly-convenient reactor according to claim 2, wherein, A moving clamping block is provided at the outer end of the extension rod; a longitudinal limiting groove is provided on the outer side wall of the driving groove; the moving clamping block is slidably clamped up and down on the longitudinal limiting groove.

5. The sealing mechanism for the assembly-convenient reactor according to claim 2, characterized in that, Adjusting openings are respectively opened on both sides of the positioning disk; the upper end of the driving rod extends into the adjusting opening.

6. The sealing mechanism for the assembly - convenient reaction kettle according to claim 1, characterized in that, Both the upper sealing ring and the lower sealing ring are made of elastic rubber material.

7. The sealing mechanism for the assembly-convenient reactor according to claim 1, wherein, A pressing ring convex is provided around the lower side of the annular gland; the pressing ring convex is inserted into the annular step surface and presses against the upper end of the upper sealing ring.

8. The sealing mechanism for an assembly - convenient reaction kettle according to claim 1, characterized in that, The periphery of the annular gland is rotationally and tightly connected to the upper end of the positioning disk through a screw.

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