Exothermic and insulated riser convenient to disassemble and assemble

Abstract

The utility model discloses an exothermic insulated riser convenient to disassemble and assemble, and particularly relates to the related technical field of insulated risers, the exothermic insulated riser comprises a riser body and a flow guide bin in threaded connection below the riser body, the side surface of the flow guide bin is fixedly communicated with a flow guide pipe, one end of the flow guide pipe is movably communicated with a flowing port, and the other end of the flow guide pipe is communicated with a valve. An auxiliary mechanism used for assisting the riser body in quick disassembly is arranged in the flow guide bin and comprises a top plate arranged in the riser body, a pull rod is fixedly connected to the lower portion of the top plate, and a wedge block is fixedly connected to the lower end of the pull rod; the wedge-shaped block is obliquely arranged front and back and left and right at a certain angle; a plurality of sets of inserting rods and a set of sliding columns are arranged on the periphery of the wedge-shaped block respectively, the inserting rods are in sliding connection with the flow guide bin, and the technical effects that workers can conveniently disassemble the heat preservation riser and a casting, the connection stability between the heat preservation riser and the casting can be improved, and the casting quality of the casting can be improved are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to heat preservation risers, and particularly relates to a heat preservation riser that is convenient for disassembly and assembly. Background Technique

[0002] The casting heat preservation riser is a commonly used technical component in the casting process. Its main function is to provide additional molten metal for the casting during the casting process to compensate for the shrinkage generated by the casting during solidification, and prevent casting defects such as shrinkage cavities and shrinkage porosity in the casting. The ceramic casting heat preservation riser is designed according to the special properties of ceramic materials. Because ceramics have good thermal stability at high temperatures, but may experience large volume shrinkage during the cooling process, resulting in defects inside the casting. The heat preservation riser for ceramic castings usually pays more attention to heat preservation and uniform heat dissipation to reduce the shrinkage stress during the cooling process.

[0003] The existing heat preservation risers are generally directly connected to the casting by welding or other means. After the casting work is completed, the heat preservation riser cannot be quickly removed, which will cause the cooling rate of the ceramic casting to be uneven, thus causing internal stress and even cracks. Therefore, a heat preservation riser that is convenient for disassembly and assembly is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a heat preservation riser that is convenient for disassembly and assembly, aiming to solve the technical problem that after the heat preservation riser is directly connected to the ceramic casting, the heat preservation riser cannot be quickly removed from the ceramic casting, which affects the casting quality of the ceramic casting.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heat preservation riser that is convenient for disassembly and assembly, including a riser body and a diversion chamber threadedly connected below the riser body. A diversion pipe is fixedly communicated with the side surface of the diversion chamber. One end of the diversion pipe is movably communicated with a flow port. An auxiliary mechanism for assisting the riser body to be quickly disassembled is arranged inside the diversion chamber;

[0006] Auxiliary mechanism: The auxiliary mechanism includes a top plate arranged inside the riser body. A pulling rod is fixedly connected below the top plate. A wedge block is fixedly connected to the lower end of the pulling rod. The wedge block is inclined at a certain angle in the front, back, left, and right directions;

[0007] A plurality of groups of insertion rods and a group of sliding columns are respectively arranged around the wedge block. The insertion rods are slidably connected with the diversion chamber. One end of the sliding column is fixedly connected with a group of connecting rods. An inclined plate is fixedly connected to the surface of the connecting rod. The inclined plate is arranged directly below the flow port.

[0008] In this solution, after the ceramic casting liquid flowing into the diversion chamber through the diversion pipe generates a certain amount of hot air, the volume of the gas will expand and the density will decrease. Therefore, the gas will rise. At this time, the gas will move upward through the cavity inside the riser body that is threadedly connected to the diversion chamber. When the gas accumulates to a certain extent, under the action of air pressure, the high-temperature gas will push the top plate to move upward in the thinner pipe-shaped cavity inside the riser body. When the top plate moves upward to the bottom of the conical cavity opened inside the riser body, the gas will be released, thereby discharging the high-temperature gas, which can improve the quality of ceramic casting.

[0009] In a preferred solution, a return spring is arranged at the sliding position of the insertion rod and the diversion chamber. Both ends of the connecting rod are fixedly connected with baffles, and the baffles are slidably connected to the diversion chamber.

[0010] Through the sliding of the baffle, when the accumulated ceramic liquid inside reaches a certain level, it can evenly supplement the casting liquid required later in the casting, and can make full use of the casting liquid.

[0011] In a preferred solution, a number of groups of perfusion ports are opened at the bottom of the diversion chamber. A leak-proof ring is arranged between the baffle and the perfusion port, and a return element is arranged between the inclined plate and the diversion chamber.

[0012] By arranging a baffle at the position of the perfusion port, it can prevent the casting liquid from leaking into the casting being poured, preventing it from affecting the subsequent liquid supplement work for the casting.

[0013] In a preferred solution, the flow port is movably connected to the diversion chamber. A number of groups of threaded holes are opened at the bottom of the diversion chamber, and a number of groups of screws are threadedly connected inside the threaded holes.

[0014] By connecting the screws to the reserved connection position above the casting, it can improve the connection stability between the casting and the riser body, and is also convenient for the staff to disassemble.

[0015] In a preferred solution, a filter screen is installed inside the riser body. The filter screen is made of a material that can withstand high temperatures. The top plate is slidably connected to the riser body, and a sealing gasket is arranged between the top plate and the riser body.

[0016] Through the setting of the filter screen, it can filter the high-temperature gas generated by the casting liquid, and can prevent the generated dust particles, etc. from being directly discharged and causing harm to the human body.

[0017] In a preferred solution, the wedge-shaped block is made of a material with light weight and good high-temperature resistance, and the insertion rod is made of a material with high hardness and good high-temperature resistance.

[0018] By moving the inclined plate, the flow port can be pushed to swing. When the inclined plate pushes the flow port upward through the inclined surface, the speed of the casting liquid flowing into the diversion chamber can be slowed down, so that the casting liquid inside the diversion chamber can slowly supplement the casting through the perfusion port, and the rapid flow of the casting liquid to the casting can be avoided, thereby preventing a large number of bubbles from being generated inside the casting.

[0019] In a preferred embodiment, a plurality of groups of through holes are formed on the surface of the riser body, and a tension spring is arranged between the bottom of the wedge block and the inside of the diversion chamber.

[0020] As can be seen from the above, a detachable heat-insulating riser includes a riser body and a diversion chamber threadedly connected below the riser body. A diversion pipe is fixedly connected to the side of the diversion chamber, and one end of the diversion pipe is movably connected to a flow port. An auxiliary mechanism is arranged inside the diversion chamber to assist in the rapid disassembly of the riser body; Auxiliary mechanism: The auxiliary mechanism includes a top plate arranged inside the riser body. A pull rod is fixedly connected below the top plate, and a wedge block is fixedly connected to the lower end of the pull rod. The wedge block is inclined at a certain angle in the front, back, left, and right directions; A plurality of groups of insertion rods and a group of sliding columns are respectively arranged around the wedge block. The insertion rods are slidably connected to the diversion chamber. One end of the sliding column is fixedly connected to a group of connecting rods, and an inclined plate is fixedly connected to the surface of the connecting rods. The inclined plate is arranged directly below the flow port. The detachable heat-insulating riser provided by the present invention has the technical effects of facilitating disassembly by workers, improving the connection stability between the heat-insulating riser and the casting, and improving the casting quality of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a schematic diagram of the internal structure of the riser body of the present invention;

[0023] Figure 3 is a schematic diagram of the internal structure of the present invention;

[0024] Figure 4 is a sectional view of the present invention;

[0025] In the figure: 1, riser body; 2, diversion chamber; 3, diversion pipe; 4, pull rod; 5, wedge block; 6, insertion rod; 7, sliding column; 8, inclined plate; 9, flow port; 10, filter screen; 11, top plate; 12, baffle; 13, connecting rod; 14, perfusion port. DETAILED DESCRIPTION OF THE INVENTION

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] A heat-generating and heat-preserving riser that is easy to disassemble and assemble disclosed by the present utility model is mainly applied to the scenario where after the heat-preserving riser is directly connected to the ceramic casting, it is impossible to quickly remove the heat-preserving riser from the ceramic casting, which affects the casting quality of the ceramic casting.

[0028] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 A heat-generating and heat-preserving riser that is easy to disassemble and assemble, including a riser body 1 and a flow guide chamber 2 threadedly connected below the riser body 1. A flow guide pipe 3 is fixedly communicated with the side of the flow guide chamber 2. One end of the flow guide pipe 3 is movably communicated with a flow port 9. An auxiliary mechanism for assisting the quick disassembly of the riser body 1 is arranged inside the flow guide chamber 2; Auxiliary mechanism: The auxiliary mechanism includes a top plate 11 arranged inside the riser body 1. A pulling rod 4 is fixedly connected below the top plate 11. A wedge block 5 is fixedly connected to the lower end of the pulling rod 4. The wedge block 5 is inclined at a certain angle in the front, back, left and right directions; A plurality of groups of insertion rods 6 and a group of sliding columns 7 are respectively arranged around the wedge block 5. The insertion rods 6 are slidably connected to the flow guide chamber 2. One end of the sliding column 7 is fixedly connected to a group of connecting rods 13. An inclined plate 8 is fixedly connected to the surface of the connecting rod 13. The inclined plate 8 is arranged directly below the flow port 9.

[0029] In this solution, after the ceramic casting liquid flowing into the flow guide chamber 2 through the flow guide pipe 3 generates a certain amount of hot air, the volume of the gas will expand and the density will decrease. Therefore, the gas will rise. At this time, the gas will move upward through the cavity inside the riser body 1 that is threadedly communicated with the flow guide chamber 2. When the gas accumulates to a certain extent, at this time, under the action of air pressure, the high-temperature gas will push the top plate 11 to move upward in the thinner pipe-shaped cavity inside the riser body 1. When the top plate 11 moves upward to the bottom of the conical cavity opened inside the riser body 1, the gas will be released, thereby discharging the high-temperature gas, which can improve the casting quality of the ceramic casting.

[0030] Among them, by respectively opening a cylindrical and a conical cavity inside the riser body 1, it is convenient for the high-temperature gas to be discharged, and at the same time, it can provide power for this device, effectively improving the stability between the heat-preserving riser and the casting, and also facilitating the operator to disassemble it.

[0031] Refer to Figure 2 andFigure 3 A return spring is arranged at the sliding position of the insertion rod 6 and the diversion chamber 2. Baffles 12 are fixedly connected to both ends of the connecting rod 13, and the baffles 12 are slidably connected to the diversion chamber 2.

[0032] Among them, through the sliding of the baffle 12, when the accumulated ceramic liquid reaches a certain level inside, it can evenly supplement the casting liquid required later in the casting, and can make full use of the casting liquid.

[0033] Refer to Figure 3 and Figure 4 A number of groups of perfusion ports 14 are opened at the bottom of the diversion chamber 2. A leak-proof ring is arranged between the baffle 12 and the perfusion ports 14, and a reset element is arranged between the inclined plate 8 and the diversion chamber 2.

[0034] Among them, by arranging the baffle 12 at the position of the perfusion port 14, it can prevent the casting liquid from leaking into the casting being cast, and prevent it from affecting the subsequent liquid supplement work for the casting.

[0035] Refer to Figure 1 、 Figure 2 and Figure 3 The flow port 9 is movably connected to the diversion chamber 2. A number of groups of threaded holes are opened at the bottom of the diversion chamber 2, and a number of groups of screws are threadedly connected inside the threaded holes.

[0036] Among them, by connecting the screw to the reserved connection position above the casting, it can improve the connection stability between the casting and the riser body 1, and is also convenient for the staff to disassemble.

[0037] Refer to Figure 2 and Figure 3 A filter screen 10 is installed inside the riser body 1. The filter screen 10 is made of a material with high temperature resistance. The top plate 11 is slidably connected to the riser body 1, and a sealing gasket is arranged between the top plate 11 and the riser body 1.

[0038] Through the setting of the filter screen 10, it can filter the high-temperature gas generated by the casting liquid, and can prevent the generated dust particles, etc. from being directly discharged and causing harm to the human body.

[0039] Furthermore, the wedge-shaped block 5 is made of a material with light weight and good high-temperature resistance, and the insertion rod 6 is made of a material with high hardness and good high-temperature resistance.

[0040] Through the movement of the inclined plate 8, it can push the flow port 9 to swing. When the inclined plate 8 pushes the flow port 9 to move upward through the inclined plane, it can slow down the speed of the casting liquid flowing into the diversion chamber 2, and can make the casting liquid inside the diversion chamber 2 slowly supplement the casting through the perfusion port 14, and can avoid the casting liquid flowing rapidly towards the casting, thereby causing a large number of bubbles to be generated inside the casting.

[0041] Referring to Figure 1 , a plurality of groups of through holes are formed on the surface of the riser body 1, and a tension spring is arranged between the bottom of the wedge block 5 and the inside of the diversion chamber 2.

[0042] Working principle: After the utility model is installed, when the casting liquid flows into the diversion pipe 3, the casting liquid will flow along the diversion pipe 3 to the flow port 9 and then flow into the inside of the diversion chamber 2 through the flow port 9. When the casting liquid is inside the diversion chamber 2, the high-temperature gas will push the top plate 11 to move upward inside the riser body 1. When the top plate 11 moves to the bottom of the conical cavity, it is convenient for the gas to be discharged. At the same time, the movement of the top plate 11 will pull the pull rod 4 to move upward, and the movement of the pull rod 4 will drive the wedge block 5 to move upward. When the wedge block 5 moves upward, it will push a plurality of insertion rods 6 to slide inside the diversion chamber 2 through the inclined surface, so that the insertion rods 6 can be inserted into the molding sand for casting, which can improve the stability of the riser body 1 during use;

[0043] At the same time, when the wedge block 5 moves, it will also push the sliding column 7 to move through the inclined surface. The movement of the sliding column 7 can drive the inclined plate 8 and the connecting rod 13 to slide inside the diversion chamber 2. At this time, the movement of the inclined plate 8 will push the flow port 9 to swing at one end of the diversion pipe 3 through the inclined surface, which can slow down the speed of the casting liquid flowing into the inside of the diversion chamber 2, thereby avoiding the phenomenon that the casting liquid quickly flows through the pouring port 14 opened at the bottom of the diversion chamber 2 to the casting, causing bubbles in the casting during the casting process, and improving the quality of the casting;

[0044] At the same time, when the connecting rod 13 moves, it can open the pouring port 14, and the casting liquid can be stored at the bottom of the diversion chamber 2 first, which can avoid the casting liquid flowing out directly through the pouring port 14 and affecting the subsequent effect of replenishing the casting;

[0045] At the same time, the bottom of the diversion chamber 2 is installed at the reserved connection position on the casting through screws, which can assist the staff to install it quickly. After the diversion chamber 2 and the casting are used for a long time, it is inevitable that the diversion chamber 2 is difficult to be removed from the casting. At this time, the staff can remove the riser body 1 from the diversion chamber 2 by rotating the riser body 1, which can protect the riser body 1 and facilitate subsequent reuse.

[0046] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A heat-insulating riser that is easy to disassemble and assemble, comprising a riser body (1) and a guide chamber (2) threadedly connected to the bottom of the riser body (1), a guide pipe (3) fixedly connected to the side of the guide chamber (2), and a flow port (9) movably connected to one end of the guide pipe (3), characterized in that: An auxiliary mechanism for assisting the riser body (1) in rapid disassembly is arranged inside the guide chamber (2); Auxiliary mechanism: the auxiliary mechanism comprises a top plate (11) arranged inside the riser body (1), a pull rod (4) is fixedly connected to the bottom of the top plate (11), a wedge block (5) is fixedly connected to the lower end of the pull rod (4), and the wedge block (5) is arranged to be inclined at a certain angle in front, back, left and right directions; A plurality of groups of insertion rods (6) and a group of sliding columns (7) are respectively arranged around the wedge block (5); the insertion rods (6) are slidably connected to the guide bin (2); one end of the sliding column (7) is fixedly connected to a group of connecting rods (13); a surface of the connecting rod (13) is fixedly connected to an inclined plate (8); and the inclined plate (8) is arranged directly below the flow port (9).

2. The heat-insulating riser that is easy to disassemble and assemble according to claim 1, characterized in that: A return spring is provided at the sliding position of the insertion rod (6) and the guide bin (2); baffles (12) are fixedly connected to both ends of the connecting rod (13); and the baffles (12) and the guide bin (2) are slidably connected.

3. The heat-insulating riser that is easy to disassemble and assemble according to claim 2, characterized in that: A plurality of groups of filling ports (14) are provided at the bottom of the flow guide bin (2), a leak-proof ring is provided between the baffle plate (12) and the filling port (14), and a reset element is provided between the inclined plate (8) and the flow guide bin (2).

4. The heat-insulating riser that is easy to disassemble and assemble according to claim 3, characterized in that: The flow port (9) is movably connected to the flow guide chamber (2); a plurality of threaded holes are provided at the bottom of the flow guide chamber (2); and a plurality of screws are threadedly connected inside the threaded holes.

5. The heat-insulating riser that is easy to disassemble and assemble according to claim 4, characterized in that: A filter screen (10) is arranged inside the riser body (1), and the filter screen (10) is made of a high temperature resistant material. The top plate (11) is slidably connected to the riser body (1), and a sealing gasket is arranged between the top plate (11) and the riser body (1).

6. The heat-insulating riser that is easy to disassemble and assemble according to claim 5, characterized in that: A plurality of groups of through holes are provided on the surface of the riser body (1), and tension springs are provided at the bottom of the wedge-shaped block (5) and inside the guide chamber (2).

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