Multi-air-channel plug rod
By designing exhaust holes, support blocks, support rods and reset components on the plug rod body, the problem of gas return of the plug rod is solved, the gas check function is realized, and the use effect of the plug rod is improved.
Patent Information
- Application Number
- CN202422869995.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The existing plug rod has a single function and does not have a gas check function, which causes argon to easily return and affects the use effect.
A multi-airway plug rod is designed, including a plug rod body and a plug rod head. The plug rod body is equipped with an exhaust hole, and there is a support block and a support rod inside. The support rod is slidingly connected to the circular plate, and the support block is equipped with a limiting block and a reset component, which uses a spring and a rubber ring to realize the gas check function.
It effectively avoids gas return, realizes the gas check function, and can flexibly use argon, which improves the use effect of the plug rod.
Smart Images
Figure CN223257616U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stopper rods, in particular to a multi-airway stopper rod. Background Art
[0002] With the continuous development of society and the continuous advancement of science and technology, the technology related to the stopper rod is also constantly improving. The stopper rod is a refractory rod installed in the steel ladle that controls the opening and closing of the water nozzle and the flow of molten steel by lifting and lowering displacement. It is also called a ceramic stopper rod.
[0003] The stopper rod currently used has a relatively simple function, does not have a gas check function, cannot flexibly use argon, and is prone to gas backflow during use, which is not conducive to the use of the stopper rod. Utility Model Content
[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: the function of the currently used stopper rod is relatively simple, it does not have the function of gas non-return, cannot flexibly use argon gas, and is prone to gas backflow during use, which is not conducive to the use of the stopper rod. A multi-airway stopper rod is proposed.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A multi-airway plug rod comprises an integrally connected plug rod body and a plug rod head, the plug rod body being provided with a plurality of symmetrically arranged exhaust holes, a support block being fixedly mounted inside the plug rod body, two support rods being fixedly mounted on the upper surface of the support block, and circular plates being slidably connected to the two support rods;
[0007] A limiting block is fixedly connected to the support block, and the cross-section of the limiting block is an isosceles trapezoid. The upper end of the limiting block is fixedly connected to a cylinder, and a circular hole for connecting the cylinder is opened on the circular plate. A reset assembly is provided on each of the support rods, and the reset assembly includes a spring fixedly mounted on the support rod, and the spring is fixedly connected to the lower surface of the circular plate.
[0008] Preferably, a first rubber ring is fixedly connected to the outer side of the cylinder, and the surface of the first rubber ring is in contact with the inner wall of the circular hole.
[0009] Preferably, a second rubber ring is fixedly connected to the outer surface of the circular plate, and the surface of the second rubber ring is in close contact with the inner wall of the plug rod body.
[0010] Preferably, the circular plate is provided with two through holes for connecting the support rods, and the inner wall of each through hole is fixedly connected to a third rubber ring.
[0011] Preferably, both inner walls of the plug rod body are provided with sliding grooves, and a limiting strip with an L-shaped cross section is slidably connected in each of the sliding grooves, and the limiting strip is fixedly connected to the upper surface of the circular plate.
[0012] Preferably, two obliquely arranged reinforcing rods are fixedly connected to the lower surface of the support block, and each of the reinforcing rods is fixedly connected to the inner wall of the plug rod body.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] When the gas pressure is high, the gas will squeeze the circular plate, causing it to move downward along the support rod, and the two springs will deform at the same time. After the circular plate moves downward, it will gradually fit on the outside of the limit block, and there will be a gap between the circular hole and the surface of the limit block. The gas can pass through the gap and be discharged through multiple exhaust holes. When the gas pressure is low, under the resetting action of the two springs, the circular plate will be driven to move up to the initial height, that is, the first rubber ring will be tightly attached to the inside of the circular hole again, and the circular hole can be fully sealed and blocked, which can effectively prevent the gas from flowing back, so that the plug rod body has the function of gas check, can flexibly use argon gas, and can effectively prevent the gas from flowing back during use, which is beneficial to the use of the plug rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front structural diagram of a multi-airway plug rod proposed in the utility model;
[0016] Figure 2 This is a schematic diagram of the front internal structure of a multi-airway plug rod proposed in the present invention;
[0017] Figure 3 This is a schematic diagram of the internal top view of a multi-airway plug rod proposed in the utility model;
[0018] Figure 4 This is a schematic diagram of the partial internal structure of a multi-airway plug rod proposed in the present invention.
[0019] In the figure: 1 plug rod body, 2 plug rod head, 3 exhaust hole, 4 reinforcement rod, 5 cylinder, 6 spring, 7 support block, 8 limit strip, 9 circular plate, 10 slide groove, 11 first rubber ring, 12 third rubber ring, 13 support rod, 14 limit block, 15 second rubber ring. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0021] The terms "upper", "lower", "left", "right", "middle" and "one" used in the present invention are only for the convenience of description and are not intended to limit the scope of application of the present invention. Changes or adjustments to their relative relationships shall be deemed to be within the scope of application of the present invention without substantially changing the technical content.
[0022] Reference Figure 1-Figure 4 A multi-airway plug rod comprises an integrally connected plug rod body 1 and a plug rod head 2. The plug rod body 1 is provided with a plurality of symmetrically arranged exhaust holes 3. A support block 7 is fixedly installed inside the plug rod body 1. Two support rods 13 are fixedly installed on the upper surface of the support block 7. A circular plate 9 is slidably connected to the two support rods 13. A limiting block 14 is fixedly connected to the support block 7. The cross-section of the limiting block 14 is an isosceles trapezoid. The upper end of the limiting block 14 is fixedly connected to a cylinder 5. A circular hole for connecting the cylinder 5 is opened on the circular plate 9. A reset assembly is provided on each support rod 13. The reset assembly includes a spring 6 fixedly mounted on the support rod 13. The spring 6 is fixedly connected to the lower surface of the circular plate 9.
[0023] A first rubber ring 11 is fixedly connected to the outside of the cylinder 5, and the surface of the first rubber ring 11 is in contact with the inner wall of the circular hole. A second rubber ring 15 is fixedly connected to the outer surface of the circular plate 9, and the surface of the second rubber ring 15 is in contact with the inner wall of the plug rod body 1. Two through holes are provided on the circular plate 9 for connecting the support rod 13, and the inner wall of each through hole is fixedly connected to the third rubber ring 12. In the initial state, the circular plate 9 is sleeved on the outside of the cylinder 5, and the surface of the first rubber ring 11 is in contact with the inner wall of the circular hole. The sealing performance of the connection between the circular plate 9 and the cylinder 5 is good, the surface of the second rubber ring 15 is in contact with the inner wall of the plug rod body 1, and each third rubber ring 12 is also in contact with the surface of the corresponding support rod 13. During the movement of the circular plate 9 along the support rod 13, the sealing performance of the connection between the circular plate 9 and the inner wall of the plug rod body 1 is good, and the sealing performance of the connection between the circular plate 9 and the support rod 13 is also good.
[0024] Slide grooves 10 are provided on the inner walls of both sides of the plug rod body 1, and a limit bar 8 with an L-shaped cross-section is slidably connected in each slide groove 10. The limit bar 8 is fixedly connected to the upper surface of the circular plate 9. During the movement of the circular plate 9 along the support rod 13, each limit bar 8 will slide along the corresponding slide groove 10. The slide groove 10 can limit the moving trajectory of the limit bar 8, which is conducive to the stable vertical movement of the circular plate 9. Two inclined reinforcement rods 4 are fixedly connected to the lower surface of the support block 7. Each reinforcement rod 4 is fixedly connected to the inner wall of the plug rod body 1. The two inclined reinforcement rods 4 have a good supporting effect on the support block 7, so that the support block 7 is firmly connected to the inner wall of the plug rod body 1.
[0025] In the present invention, in the initial state, the circular plate 9 is sleeved on the outside of the cylinder 5, and the surface of the first rubber ring 11 is in close contact with the inner wall of the circular hole. When in use, the gas is blown to the inside of the plug rod body 1. When the gas pressure is large, the gas will squeeze the circular plate 9, causing it to move downward along the support rod 13. The two springs 6 are deformed at the same time. After the circular plate 9 moves downward, it will gradually sleeve on the outside of the limit block 14. The cross section of the limit block 14 is isosceles trapezoidal, and the diameter of the upper end of the limit block 14 is larger than that of the lower end. The diameter of the upper end of the limit block 14 is the same as the diameter of the cylinder 5. The circular plate 9 moves. When it reaches the bottom of the upper end of the limit block 14, there will be a gap between the circular hole and the surface of the limit block 14, and the gas can pass through the gap and be discharged through the multiple exhaust holes 3. When the gas pressure is relatively low, under the reset action of the two springs 6, the circular plate 9 will be driven to move up to the initial height, that is, the first rubber ring 11 will be tightly attached to the inside of the circular hole again, and the circular hole can be fully sealed and blocked, which can effectively prevent the gas from flowing back, so that the plug rod body 1 has the function of gas check, can flexibly use argon gas, and can effectively prevent the gas from flowing back during use, which is beneficial to the use of the plug rod.
[0026] In the present invention, unless otherwise clearly specified or limited, the terms “installed”, “connected”, “connected”, “fixed” and the like should be understood in a broad sense.
[0027] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A multi-airway plug rod, comprising a plug rod body (1) and a plug rod head (2) connected in one piece, characterized in that: The plug rod body (1) is provided with a plurality of symmetrically arranged exhaust holes (3); a support block (7) is fixedly mounted inside the plug rod body (1); two support rods (13) are fixedly mounted on the upper surface of the support block (7); and circular plates (9) are slidably connected to the two support rods (13); A limit block (14) is fixedly connected to the support block (7), and the cross section of the limit block (14) is arranged in an isosceles trapezoidal shape. The upper end of the limit block (14) is fixedly connected to a cylinder (5), and a circular hole for connecting the cylinder (5) is opened on the circular plate (9). A reset assembly is provided on each of the support rods (13), and the reset assembly includes a spring (6) fixedly mounted on the support rod (13), and the spring (6) is fixedly connected to the lower surface of the circular plate (9).
2. A multi-airway stopper rod according to claim 1, characterized in that A first rubber ring (11) is fixedly connected to the outer side of the cylinder (5), and the surface of the first rubber ring (11) is in contact with the inner wall of the circular hole.
3. The multi-airway stopper rod according to claim 1, characterized in that: A second rubber ring (15) is fixedly connected to the outer surface of the circular plate (9), and the surface of the second rubber ring (15) is in close contact with the inner wall of the plug rod body (1).
4. The multi-airway stopper rod according to claim 1, characterized in that: The circular plate (9) is provided with two through holes for connecting the support rod (13), and the inner wall of each through hole is fixedly connected to a third rubber ring (12).
5. The multi-airway stopper rod according to claim 1, characterized in that: Slide grooves (10) are provided on both inner walls of the plug rod body (1), and a limit bar (8) having an L-shaped cross section is slidably connected in each of the slide grooves (10). The limit bar (8) is fixedly connected to the upper surface of the circular plate (9).
6. The multi-airway stopper rod according to claim 1, characterized in that: Two inclined reinforcement rods (4) are fixedly connected to the lower surface of the support block (7), and each reinforcement rod (4) is fixedly connected to the inner wall of the plug rod body (1).