A rolling plant for the processing of blooms

By designing rolling equipment for large billet processing, the billet bending is avoided by using a conveying device and a resetting mechanism, and the transport direction is changed on the left side of the device. Combined with water tank cooling, the problems of billet bending due to gravity and failure to cool down are solved, thus achieving orderly feeding and shape maintenance.

CN117123618BActive Publication Date: 2026-05-15HUNAN VALIN XIANGTAN IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HUNAN VALIN XIANGTAN IRON & STEEL CO LTD
Filing Date
2023-09-13
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In the existing technology, the billet that has just been rolled out has a problem where the temperature is not reduced in time, causing the first half to bend due to gravity and occupy a lot of space.

Method used

A rolling mill for processing large billets was designed. By setting up a conveying device and a resetting mechanism, the front half of the billet is prevented from bending due to gravity. A conveying device is set on the left side of the device to change the transport direction. At the same time, a water tank and nozzles are used for cooling.

Benefits of technology

This effectively prevents the front half of the billet from bending due to gravity, enabling orderly feeding and flexible transportation. It also maintains the shape of the billet by cooling, thus improving the transportation efficiency and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of metal processing, and disclose a kind of rolling equipment for big square billet processing, including body, the rear side of body is provided with conveying device, the front of body is provided with discharge chute, the front of body is provided with fixed box, fixed box is provided with transverse plate and cross strip between body, the front and rear sides of transverse plate and the front and rear sides of cross strip are respectively fixedly connected with fixed box and body, with square billet extruding moving strip to move forward, moving block can be driven to move forward, so that connecting plate can be driven to move forward, so that support strip can be driven to move forward, when support strip leaves the lower side of movable strip in front, long strip will lose support and rotate downward, so that square billet on movable column can slide downward along movable column, to stabilize blanking, avoid square billet bending due to gravity due to the first half of square billet, simultaneously, conveying device can be set on the left of the device to transport square billet to other direction.
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Description

Technical Field

[0001] This invention relates to the technical field of metal processing, specifically to a rolling mill for processing large square billets. Background Technology

[0002] A billet is a type of steel billet. Steel billets are mainly divided into two types in terms of shape: slabs and square billets. Slabs have a larger width-to-height ratio and are mainly used for rolling plates. Square billets have equal or similar width and height and are mainly used for rolling structural steel and wire rods. Square billets need to be heated during rolling to soften them and make them easier to roll. However, if the temperature cannot drop immediately after rolling, the front half of the billet will bend due to gravity. The conveyor system that catches the billet can only continue to transport it in the direction of billet discharge, thus occupying a large amount of space in the same direction. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this invention provides a rolling mill for processing large billets. It avoids the billet bending due to gravity caused by the first half exiting the mill first, and allows for transporting the billet in other directions via a conveyor device located on the left side of the device. This solves the problem that immediately after rolling, the temperature cannot drop quickly enough, causing the first half of the billet to bend due to gravity. Furthermore, using a conveyor device to catch the billet only allows it to continue transporting it in the direction of the billet's exit, thus occupying a large amount of space in the same direction.

[0005] (II) Technical Solution

[0006] To avoid the billet bending due to gravity because the first half exits first, and to facilitate transporting the billet in other directions by installing a conveyor on the left side of the device, this invention provides the following technical solution: A rolling mill for processing large billets, comprising a machine body, a conveyor on the rear side of the machine body, a discharge chute on the front side of the machine body, a fixed box at the front of the machine body, a horizontal plate and a horizontal bar between the fixed box and the machine body, the front and rear sides of the horizontal plate and the front and rear sides of the horizontal bar being fixedly connected to the fixed box and the machine body respectively, several movable columns being provided on the horizontal bar, and a long box being fixedly installed on the lower side of the horizontal plate. Two movable bars are movably connected to the lower side of the long box via hinges. Long strips are fixedly installed on the two movable bars. A support block is fixedly installed on the lower side of the movable bar at the front. Three blocking strips are fixedly installed on the long strip. A square tube is fixedly installed inside the fixed box. The rear end of the square tube is fixedly inserted through the inner rear wall of the fixed box. A movable strip is movably connected inside the square tube. A sliding groove is opened on the lower wall of the square tube. A movable block is movably connected in the sliding groove. A connecting plate is fixedly installed on the right side of the movable block. A support strip is fixedly installed on the right side of the connecting plate. A triangular plate is fixedly installed on the rear side of the support strip. A slot is opened on the rear wall of the fixed box. The support strip is placed in the slot. A reset mechanism is set inside the fixed box.

[0007] Preferably, the reset mechanism includes a fixed plate, two inclined columns, two rotating columns, two annular wall grooves, a transmission rope, a rotating rod, a connecting strip, a connecting block, a pull strip, a baffle, a triangular strip, and the fixed plate is fixedly installed on the inner rear wall of the fixed box. The two inclined columns are respectively fixedly installed on the fixed plate and the lower inner wall of the fixed box. The two rotating columns are respectively movably sleeved on the two inclined columns. The two annular wall grooves are respectively opened on the side walls of the two rotating columns. The rotating rod movably passes through the rear wall of the fixed box and the front wall of the machine body. The connecting strip is fixedly connected to the rotating rod. The baffle is fixedly connected to the connecting strip. The triangular strip is fixedly connected to the baffle. The baffle is located below the horizontal bar. The connecting block is fixedly connected to the front end of the rotating rod. The pull strip is fixedly connected to the connecting block. The transmission rope is fixedly connected to the rear side of the moving block. The transmission rope passes over the upper rotating column and then passes under the lower rotating column. The transmission rope is fixedly connected to the pull strip.

[0008] Preferably, a support rod is fixedly installed at the upper end of each of the elongated strips, and a movable tube is movably sleeved on each support rod. Two long grooves are opened on the lower side of the movable strip, and several small rods are fixedly installed in each of the two long grooves. A small column is movably sleeved on each small rod, and each small column is in contact with the lower inner wall of the square tube.

[0009] Preferably, a water tank is fixedly installed on the horizontal plate, and two round boxes are fixedly installed on the water tank. Each round box is fixedly connected to a water inlet pipe. Several nozzles are fixedly connected to the upper side of the long box, and several small pipes are fixedly connected to the long box. Each small pipe is fixedly connected through the side wall of the water tank.

[0010] Preferably, the lower inner wall of the water tank has several short pipes that can be movably passed through it, and several fixed rods are fixedly installed on the crossbar. Each movable column has a circular groove at its lower end, and each fixed rod is movably connected to each circular groove. Each movable column has a water trough inside it.

[0011] Preferably, each of the short tubes is fixedly inserted through the upper end of each movable column, each short tube is connected to each water tank, each short tube is movably fitted with a sealing ring, each short tube movably passes through a horizontal plate, and each sealing ring is fitted with the lower inner wall of the water tank.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the present invention provides a rolling mill for processing large square billets, which has the following beneficial effects:

[0014] 1. This rolling mill for processing large billets rolls the billet through the machine body and then conveys it out through the discharge chute. The billet then moves to several movable columns. As the billet moves forward, it compresses the moving strip, which in turn moves the moving block forward, thereby moving the connecting plate forward. This in turn moves the support strip forward. When the support strip leaves the lower part of the moving strip in front, the long strip loses its support and rotates downward. The billet that has moved to the moving column slides down along the moving column, thus stabilizing the discharge. Then, the reset mechanism resets the support strip, which in turn moves the triangular plate forward, compressing the moving strip in front. This causes the moving strip to rotate upward and return to its original position. In this way, the support of the blocking strip ensures that the billet moves completely to the moving column before sliding downward, thus preventing the billet from bending due to gravity if the first half comes out first. At the same time, a conveying device can be set on the left side of this device to transport the billet in other directions.

[0015] 2. This rolling equipment for processing large billets moves the billet extrusion moving strip forward, which in turn moves the moving block forward. This pulls the transmission rope, causing the pulling strip to rotate downward. The rotating rod then rotates the connecting strip, which in turn rotates the baffle to move diagonally below the horizontal bar. When the billet slides downward, it extrudes the triangular strip on the baffle, which in turn rotates the rotating rod. This rotates the pulling strip, which pulls the transmission rope, causing the moving block to move backward and return to its original position. This process is repeated continuously to ensure the orderly feeding of subsequent billets.

[0016] 3. The rolling equipment used for processing large square billets can reduce friction when the billet moves forward by means of the movable tube on the support rod, and can reduce the friction between the moving bar and the inner wall of the square tube by means of the small rod and small column, thereby improving the sensitivity of the device.

[0017] 4. This rolling equipment for processing large billets connects a water source to two water inlet pipes, allowing water to be continuously injected into two round boxes. The water then enters the water tank and is sprayed out through several nozzles, thus spraying the water onto the billet to cool it down and further maintain its shape.

[0018] 5. The rolling equipment used for processing large billets can allow water to enter each water tank from the water tank through several short pipes, so that water can be injected into each water tank. This allows the billet to be cooled as it moves forward or downward along the moving column, thus further improving the cooling effect. Attached Figure Description

[0019] Figure 1 This is a frontal perspective view of the present invention;

[0020] Figure 2 For the present invention Figure 1 A cross-sectional three-dimensional structural diagram of the central fixed box;

[0021] Figure 3 For the present invention Figure 2 A cross-sectional three-dimensional structural diagram of the Chinese-style tube;

[0022] Figure 4 For the present invention Figure 2 A schematic diagram of the three-dimensional structure of the moving block;

[0023] Figure 5 For the present invention Figure 1 A schematic diagram of the three-dimensional structure of the medium-length box;

[0024] Figure 6 For the present invention Figure 1 A schematic diagram of the three-dimensional structure of the central triangular strip;

[0025] Figure 7 For the present invention Figure 1 A schematic diagram of the three-dimensional structure of the horizontal bar;

[0026] Figure 8 For the present invention Figure 1 A cross-sectional three-dimensional structural diagram of the central movable column.

[0027] In the diagram: 1. Machine body; 2. Conveying device; 3. Horizontal bar; 4. Triangular bar; 5. Discharge chute; 6. Support rod; 7. Movable tube; 8. Blocking bar; 9. Long strip; 10. Fixed box; 11. Long box; 12. Movable column; 13. Horizontal plate; 14. Water tank; 15. Round box; 16. Water inlet pipe; 17. Fixed rod; 18. Round groove; 19. Water trough; 20. Short pipe; 21. Square tube; 22. Groove opening; 23. Moving block; 24. Fixed 25. Plate; 26. Connecting block; 27. Pulling strip; 28. Transmission rope; 29. ​​Inclined column; 30. Rotating column; 31. Annular wall groove; 32. Small rod; 33. Small column; 34. Long groove; 35. Sliding groove; 36. Moving strip; 37. Rotating rod; 38. Movable strip; 39. Connecting strip; 40. Baffle; 41. Triangular plate; 42. Support strip; 43. Connecting plate; 44. Small pipe; 45. Nozzle; 46. Support block; 47. Sealing ring. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings, wherein the same parts are indicated by the same reference numerals. It should be noted that the terms “front”, “rear”, “left”, “right”, “upper” and “lower”, “bottom surface” and “top surface” used in the following description refer to the directions in the drawings, and the terms “inner” and “outer” refer to the directions toward or away from the geometric center of a specific part, respectively.

[0029] 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.

[0030] Please see Figures 1-8The present invention provides a technical solution: a rolling mill for processing large billets, comprising a machine body 1, the machine body 1 being a rolling mill, a conveying device 2 disposed on the rear side of the machine body 1, a discharge chute 5 disposed on the front side of the machine body 1, a fixed box 10 disposed at the front of the machine body 1, a horizontal plate 13 and a horizontal bar 3 disposed between the fixed box 10 and the machine body 1, the front and rear sides of the horizontal plate 13 and the front and rear sides of the horizontal bar 3 being fixedly connected to the fixed box 10 and the machine body 1 respectively, a plurality of movable columns 12 disposed on the horizontal bar 3, a long box 11 fixedly installed on the lower side of the horizontal plate 13, two movable bars 37 being movably connected to the lower side of the long box 11 via hinges, a long bar 9 fixedly installed on the two movable bars 37, a support block 45 fixedly installed on the lower side of the movable bar 37 at the front, and three blocking bars 8 fixedly installed on the long bar 9. A square tube 21 is fixedly installed inside the fixed box 10. The rear end of the square tube 21 is fixedly inserted through the rear inner wall of the fixed box 10. A moving strip 35 is movably connected inside the square tube 21. A groove 34 is opened on the lower wall of the square tube 21. A moving block 23 is movably connected inside the groove 34. A connecting plate 42 is fixedly installed on the right side of the moving block 23. A support strip 41 is fixedly installed on the right side of the connecting plate 42. A triangular plate 40 is fixedly installed on the rear side of the support strip 41. A slot 22 is opened on the rear wall of the fixed box 10. The support strip 41 is placed in the slot 22. A reset mechanism is provided inside the fixed box 10. After the billet is rolled by the machine body 1, it is conveyed out through the discharge chute 5. Then the billet will move to several moving columns 12. As the billet moves forward and squeezes the moving strip 35, it will drive the moving block 23 to move forward. The movement of the support bar 41 causes the connecting plate 42 to move forward, which in turn moves the support bar 41 forward. Once the support bar 41 is below the movable bar 37, the long bar 9 loses its support and rotates downwards. This causes the billet on the movable column 12 to slide downwards along the column, stabilizing the feeding process. Then, the reset mechanism resets the support bar 41, causing the triangular plate 40 to move forward and press against the movable bar 37. This causes the movable bar 37 to rotate upwards and return to its original position. Thus, the support of the blocking bar 8 ensures that the billet moves completely onto the movable column 12 before sliding downwards, preventing the billet from bending due to gravity if the first half comes out first. A conveyor device can also be installed on the left side of this device. The billet can then be transported and moved in other directions. The reset mechanism includes a fixed plate 24, two inclined columns 28, two rotating columns 29, two annular wall grooves 30, a transmission rope 27, a rotating rod 36, a connecting strip 38, a connecting block 25, a tension strip 26, a baffle 39, and a triangular strip 4. The fixed plate 24 is fixedly installed on the rear inner wall of the fixed box 10. The two inclined columns 28 are respectively fixedly installed on the fixed plate 24 and the lower inner wall of the fixed box 10. The two rotating columns 29 are respectively movably sleeved on the two inclined columns 28. The two annular wall grooves 30 are respectively opened on the side walls of the two rotating columns 29. The rotating rod 36 movably passes through the rear wall of the fixed box 10 and the front wall of the machine body 1. The connecting strip 38 is fixedly connected to the rotating rod 36, and the baffle 39 is fixedly connected to the connecting strip 38.Triangular bar 4 is fixedly connected to baffle 39, which is located below horizontal bar 3. Connecting block 25 is fixedly connected to the front end of rotating rod 36. Pulling bar 26 is fixedly connected to connecting block 25. Transmission rope 27 is fixedly connected to the rear side of moving block 23. Transmission rope 27 passes over the upper rotating column 29 and then over the lower rotating column 29. Transmission rope 27 is fixedly connected to pulling bar 26. As billet extrusion moving bar 35 moves forward, it drives moving block 23 forward, which pulls transmission rope 27. This causes pulling bar 26 to rotate downward, allowing connecting bar 38 to rotate via rotating rod 36. This causes baffle 39 to rotate and move diagonally below horizontal bar 3. When billet slides downward, it extrudes onto baffle 39. The triangular bar 4 drives the rotating rod 36 to rotate, which in turn drives the pulling bar 26 to rotate and pull the transmission rope 27. This pulls the moving block 23 to move backward and return to its original position. This process is repeated to ensure the orderly feeding of subsequent billets. Each long bar 9 has a support rod 6 fixedly installed at its upper end, and each support rod 6 has a movable tube 7 movably sleeved on it. The lower side of the moving bar 35 has two long grooves 33, and several small rods 31 are fixedly installed in each of the two long grooves 33. Each small rod 31 has a small column 32 movably sleeved on it, and each small column 32 is in contact with the lower inner wall of the square tube 21. The movable tube 7 on the support rod 6 can reduce friction when the billet moves forward, and the small rods 31 and small columns 32 can reduce friction between the moving bar 35 and the inner wall of the square tube. Force, thereby improving the sensitivity of the device. A water tank 14 is fixedly installed on the horizontal plate 13. Two round boxes 15 are fixedly installed on the water tank 14. Water inlet pipes 16 are fixedly connected to both round boxes 15. Several nozzles 44 are fixedly connected to the upper side of the long box 11. Several small pipes 43 are fixedly connected to the long box 11. Each small pipe 43 is fixedly penetrated through the side wall of the water tank 14. By connecting the water source to the two water inlet pipes 16, water can be continuously injected into the two round boxes 15, so that the water will enter the water tank 14. Then the water will be sprayed out through the several nozzles 44, so that the water can be sprayed onto the billet, thereby cooling the billet and further maintaining the shape of the billet. Several short pipes 20 are movable through the lower inner wall of the water tank 14. Several fixed rods 17 are fixedly installed. Each movable column 12 has a circular groove 18 at its lower end. Each fixed rod 17 is movably connected to each circular groove 18. A water tank 19 is opened inside each movable column 12. Each short pipe 20 is fixedly inserted through the upper end of each movable column 12 and is connected to each water tank 19. Each short pipe 20 is movably fitted with a sealing ring 46. Each short pipe 20 movably passes through a horizontal plate 13. Each sealing ring 46 is fitted against the lower inner wall of the water tank 14. Water can enter each water tank 19 from the water tank 14 through the several short pipes 20, so that water can be injected into each water tank 19. This allows the billet to be cooled as it moves forward or downward along the movable column 12.This can further improve the cooling effect.

[0031] In operation, the first step is as follows: After the billet is rolled by the machine body 1, it is conveyed out through the discharge chute 5. Then the billet moves to several movable columns 12. As the billet moves forward, it presses the moving strip 35, which drives the moving block 23 to move forward. This drives the connecting plate 42 to move forward, which in turn drives the support strip 41 to move forward. When the support strip 41 leaves the front movable strip 37, the long strip 9 loses its support and rotates downward. The billet that has moved to the movable column 12 will slide down along the movable column 12, thus stabilizing the feeding. Then the reset mechanism resets the support strip 41, which drives the triangular plate 40 to move forward and press the front movable strip 37. This drives the movable strip 37 to rotate upward and return to its original position. With the support of the blocking strip 8, the billet can be completely moved to the movable column 12 before sliding downward, thus preventing the billet from bending due to gravity because the first half comes out first. At the same time, a conveying device can be set on the left side of this device to transport the billet in other directions.

[0032] Step 2: The billet pressing moving strip 35 moves forward, which in turn moves the moving block 23 forward. This pulls the transmission rope 27, which in turn moves the pulling strip 26 downward. This allows the connecting strip 38 to rotate via the rotating rod 36, which in turn moves the baffle 39 to rotate and move diagonally below the horizontal bar 3. When the billet slides downward, it presses the triangular strip 4 on the baffle 39, which in turn rotates the rotating rod 36. This causes the pulling strip 26 to rotate and pull the transmission rope 27, which in turn pulls the moving block 23 backward to return to its original position. This process is repeated to ensure that subsequent billets are fed in an orderly manner.

[0033] Step 3: The movable tube 7 on the support rod 6 can reduce friction when the billet moves forward, and the small rod 31 and small column 32 can reduce the friction between the moving strip 35 and the inner wall of the square tube, thereby improving the sensitivity of the device.

[0034] Step 4: By connecting the water source to the two water inlet pipes 16, water can be continuously injected into the two round boxes 15, so that the water will enter the water tank 14, and then the water will be sprayed out through several nozzles 44, so that the water can be sprayed onto the billet, thereby cooling the billet and further maintaining the shape of the billet.

[0035] Step 5: Water can be introduced from the water tank 14 into each water tank 19 through several short pipes 20, so that water can be injected into each water tank 19, thereby cooling the billet as it moves forward or downward along the movable column 12, thus further improving the cooling effect.

[0036] 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 rolling mill for processing large billets, comprising a machine body (1), wherein a conveying device (2) is provided on the rear side of the machine body (1), characterized in that: The machine body (1) has a discharge chute (5) on the front and a fixed box (10) in front of the machine body (1). A horizontal plate (13) and a horizontal bar (3) are provided between the fixed box (10) and the machine body (1). The front and rear sides of the horizontal plate (13) and the front and rear sides of the horizontal bar (3) are respectively fixedly connected to the fixed box (10) and the machine body (1). Several movable columns (12) are provided on the horizontal bar (3). A long box (11) is fixedly installed on the lower side of the horizontal plate (13). Two movable bars (37) are movably connected to the lower side of the long box (11) by hinges. Long bars (9) are fixedly installed on the two movable bars (37). The movable bars (37) in front are... A support block (45) is fixedly installed on the lower side. Three blocking strips (8) are fixedly installed on the long strip (9). A square tube (21) is fixedly installed inside the fixed box (10). The rear end of the square tube (21) is fixedly inserted through the inner wall of the fixed box (10). A movable strip (35) is movably connected inside the square tube (21). A sliding groove (34) is opened on the lower wall of the square tube (21). A movable block (23) is movably connected inside the sliding groove (34). A connecting plate (42) is fixedly installed on the right side of the movable block (23). A support strip (41) is fixedly installed on the right side of the connecting plate (42). A triangular plate (40) is fixedly installed on the rear side of the support strip (41). 10) A slot (22) is provided on the rear wall, and a support bar (41) is set in the slot (22). A reset mechanism is provided in the fixed box (10). The reset mechanism includes a fixed plate (24), which is fixedly installed on the rear inner wall of the fixed box (10). Two inclined columns (28) are fixedly installed on the fixed plate (24) and the lower inner wall of the fixed box (10), respectively. Two rotating columns (29) are movably sleeved on the two inclined columns (28), and two annular wall grooves (30) are respectively opened on the side walls of the two rotating columns (29). A rotating rod (36) movably penetrates the rear wall of the fixed box (10). The connecting strip (38) is fixedly connected to the rotating rod (36) through the front wall of the machine body (1), the baffle (39) is fixedly connected to the connecting strip (38), the triangular strip (4) is fixedly connected to the baffle (39), the baffle (39) is set below the horizontal bar (3), the connecting block (25) is fixedly connected to the front end of the rotating rod (36), the pulling strip (26) is fixedly connected to the connecting block (25), the transmission rope (27) is fixedly connected to the rear side of the moving block (23), the transmission rope (27) passes over the rotating column (29) above and then passes over the rotating column (29) below, and the transmission rope (27) is fixedly connected to the pulling strip (26).

2. The rolling equipment for processing large square billets according to claim 1, characterized in that: A water tank (14) is fixedly installed on the horizontal plate (13). Two round boxes (15) are fixedly installed on the water tank (14). A water inlet pipe (16) is fixedly connected to each of the two round boxes (15). Several nozzles (44) are fixedly connected to the upper side of the long box (11). Several small pipes (43) are fixedly connected to the long box (11). Each small pipe (43) is fixedly connected through the side wall of the water tank (14).

3. A rolling mill for processing large square billets according to claim 2, characterized in that: The water tank (14) has several short pipes (20) that can be moved through the lower inner wall. Several fixed rods (17) are fixedly installed on the horizontal bar (3). Each movable column (12) has a circular groove (18) at its lower end. Each fixed rod (17) is movably connected to each circular groove (18). Each movable column (12) has a water trough (19).

4. A rolling mill for processing large square billets according to claim 3, characterized in that: Each of the short tubes (20) is fixedly inserted through the upper end of each movable column (12), each short tube (20) is connected to each water tank (19), each short tube (20) is movably fitted with a sealing ring (46), each short tube (20) is movably inserted through the horizontal plate (13), and each sealing ring (46) is attached to the lower inner wall of the water tank (14).