Production device for magnesium alloy anti-corrosion rod of water heater

Abstract

The invention relates to the technical field of anti-corrosion rod production, and discloses a production device for a magnesium alloy anti-corrosion rod of a water heater, which comprises a working table, two table legs are fixedly connected to the bottom of the working table, a casting groove is formed in the working table, the production device further comprises a fixing sleeve, a fixing rod, a first screw rod and a second screw rod, and the fixing sleeve is located in the casting groove and fixedly connected with the groove wall of the casting groove; the outer surface of the annular plate is fixedly connected with the groove wall of the casting groove, the outer surface of the fixing sleeve is fixedly connected with the inner wall of the annular plate, and the top of the workbench, the top of the annular plate and the top of the fixing sleeve are located on the same horizontal plane. Wherein the vent holes are inclined, an outlet is kept in an upward state all the time after the first mold is deflected, molten metal cannot leak, gas in the cavity is conveniently exhausted through the proper vent holes, and good exhaust performance in the first mold is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of anti-corrosion rod production, in particular to a production device for magnesium alloy anti-corrosion rods for water heaters. Background Art

[0002] Magnesium alloy corrosion resistant rods are a crucial component of water heaters. Made from magnesium alloy, they leverage the chemical properties of magnesium to preferentially react with harmful substances in water, thereby protecting the water heater's inner tank. These corrosion resistant rods are easy to install and durable. They effectively slow corrosion of the inner tank, extending the life of the water heater, reducing maintenance costs, and ensuring efficient and stable operation.

[0003] Patent application number CN201921037658.4 discloses a production device for magnesium alloy anti-corrosion round bars for water heaters, including a liquid inlet device and a forming device. The liquid inlet device includes an electric furnace, a crucible is arranged inside the electric furnace, and a liquid transfer pump is arranged in the middle of the crucible; the forming device includes a platform, a mold frame is arranged at the upper end of the platform, and a ladle is arranged on one side of the upper end of the mold frame.

[0004] In the production process of magnesium alloy anti-corrosion rods for water heaters, the existing production process is to melt the magnesium alloy material and then cast it. However, during the melting and casting process, the quality and performance of the rod will be affected by casting defects such as pores, shrinkage holes, and slag inclusions inside the mold. Therefore, we proposed a production device for magnesium alloy anti-corrosion rods for water heaters. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a production device for magnesium alloy anti-corrosion rods for water heaters to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a production device for magnesium alloy anti-corrosion rods for water heaters, comprising a workbench, two legs fixedly connected to the bottom of the workbench, a casting trough provided inside the workbench, and further comprising:

[0007] A fixing sleeve, the fixing sleeve is located inside the casting trough and is fixedly connected to the wall of the casting trough;

[0008] A ring plate, wherein the outer surface of the ring plate is fixedly connected to the wall of the casting groove, and the outer surface of the fixing sleeve is fixedly connected to the inner wall of the ring plate, wherein the workbench, the ring plate and the top of the fixing sleeve are located in the same horizontal plane;

[0009] The pouring mechanism includes two fixed plates, the bottoms of the two fixed plates are fixedly connected to the top of the workbench, the surface of the fixed plate located on the back is fixedly connected to motor 1, the output end of motor 1 is fixedly connected to a rotating rod, the rotating rod is rotatably connected to the fixed plate located on the front through a bearing, the outer surface of the rotating rod is fixedly connected to a support frame, the surface of the support frame is fixedly connected to a boiler, a discharge port is provided on the top of the boiler, and the magnesium alloy smelted inside the boiler is discharged through the discharge port.

[0010] Preferably, a partition is fixedly connected to the inner wall of the boiler, a water outlet pipe is connected to the surface of the boiler, the connection between the water outlet pipe and the boiler is located at the upper end of the partition, a spiral tube is sleeved on the outer surface of the fixed sleeve, the spiral tube is connected to the water outlet pipe, the end of the spiral tube away from the water outlet pipe passes through the workbench and extends to the outside of the workbench, and a valve is provided on the surface of the extended spiral tube, the hot water on the partition flows into the spiral tube through the water outlet pipe, and the valve is used to control the discharge of hot water in the spiral tube.

[0011] Preferably, a fixing mechanism is provided inside the fixing sleeve, and a plurality of heat dissipation holes are provided on the surface of the fixing sleeve. Heat emitted from the surface of the spiral tube enters the interior of the fixing sleeve through the heat dissipation holes after being blocked by the surface of the ring plate.

[0012] Preferably, the fixing mechanism includes a base plate and motor 2, the motor 2 is fixedly connected to the bottom of the workbench, the output end of the motor 2 is fixedly connected to the central axis of the base plate, the base plate is located inside the fixed sleeve, a slot 1 is provided on the surface of the base plate, a push rod is fixedly connected to the central axis of the top of the base plate, the outer surface of the upper end of the push rod is fixedly connected to a fixing frame, four groups of convex plates are fixedly connected to the inner wall of the fixing sleeve, a mold assembly is provided inside the fixing frame, and after motor 2 is started, it is used to drive the base plate and the push rod to rotate.

[0013] Preferably, the mold assembly includes a mold 1, wherein two groups of protruding rods are rotatably connected to the concave hole on the surface of the mold 1 via a rotating shaft, the fixing frame is fixedly connected to the two groups of protruding rods, and is rotatably connected to the mold 1 via the two groups of protruding rods, the bottom of the mold 1 is located inside the slot 1, and two groups of jacks are opened on the surface of the mold 1;

[0014] The mold assembly also includes mold 2, which is in contact with mold 1 and has a shape and size that matches mold 1. Two plug rods are fixedly connected to the bottom of mold 2, and the bottoms of the two plug rods pass through two sockets respectively. The two plug rods are used to assist mold 2 and mold 1 in fitting together under the cooperation of the two sockets.

[0015] Preferably, two connecting sleeves 1 are fixedly connected to the outer surface of mold 2, and the inner walls of the two connecting sleeves 1 are in contact with the surface of mold 1. A protrusion is fixedly connected to the surface of mold 1, and an air vent is opened inside the protrusion. The air vent is connected to the interior of mold 1, and the air vent is used to discharge the gas inside after mold 2 and mold 1 are combined.

[0016] Preferably, the outer surface of the mold 1 is covered with two groups of connecting sleeves 2, and the two groups of connecting sleeves 2 are fixedly connected to one end close to each other with two groups of vertical rods. The two groups of connecting sleeves 2 are respectively in contact with the top of the two groups of connecting sleeves 1, and the bottom of the two groups of connecting sleeves 2 are fixedly connected with two plug-in blocks. The top of the two connecting sleeves 1 are respectively provided with two slots, and the four plug-in blocks are respectively located in the four slots and are respectively slidably engaged with the four slots. The restriction of the connecting sleeve 2 is achieved by matching the four groups of plug-in blocks with the slots.

[0017] Preferably, a second groove is provided on the surface of the mold, a connecting block is provided inside the second groove, a bracket is fixedly connected to the surface of the connecting block, two arc-shaped plates are inserted inside the bracket, both of the two arc-shaped plates are in contact with the outer surfaces of the two vertical rods, and the two arc-shaped plates are used to fit the connecting block into the second groove under the restriction of the vertical rods.

[0018] Compared with the prior art, the present invention provides a production device for magnesium alloy anti-corrosion rods for water heaters, which has the following beneficial effects:

[0019] 1. The present invention provides a convex plate. After starting motor 2, mold 1 approaches the convex plate, thereby making mold 1 tilted. Then, the molten magnesium alloy is poured into mold 1. By designing a reasonable pouring system, it is ensured that the molten metal can fill the mold cavity smoothly and evenly, avoiding turbulence and splashing.

[0020] 2. The present invention provides a convex block and opens an inclined vent hole inside the convex block so that the vent hole is connected to the interior of the mold. The vent hole is inclined and the outlet is kept in an upward state even after the mold is deflected, which does not cause the metal liquid to drip. The gas in the cavity is easily discharged through the appropriate vent hole, thereby ensuring good exhaust performance in the mold.

[0021] 3. The present invention provides a spiral tube, and the heat emitted by the hot water in the spiral tube enters the interior of the fixed sleeve through the heat dissipation holes opened on the surface of the fixed sleeve, preheating the mold 1 and the mold 2, reducing the temperature difference between the metal liquid and the mold 1 and the mold 2. At the same time, the hot water in the spiral tube can be discharged through the valve, avoiding defects of the magnesium alloy anti-corrosion rod due to excessive cooling speed.

[0022] 4. The present invention sets the mold 1 and the mold 2 as an assembled design, which can thoroughly clean the oxide scale, slag, etc. remaining in the mold 1 and the mold 2 before pouring. Then, through the provided connecting block, the bracket drives the connecting block to assist in processing the residue in the mold 1, further ensuring the production quality of the magnesium alloy anti-corrosion rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional diagram of the present invention;

[0024] Figure 2 It is a cross-sectional view of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the pouring mechanism of the present invention;

[0026] Figure 4 is a cross-sectional view of the workbench of the present invention;

[0027] Figure 5 is a motion state diagram of the fixing mechanism of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the mold assembly of the present invention;

[0029] Figure 7 An exploded view of the mold assembly of the present invention;

[0030] Figure 8 Exploded view of the mold 1 and the connecting block of the present invention;

[0031] Figure 9 For the present invention Figure 8 A is an enlarged schematic diagram;

[0032] Figure 10 This is an exploded view of the plug block and the connecting sleeve of the present invention.

[0033] Figure: 1. Workbench; 2. Table legs; 3. Casting trough; 4. Ring plate; 6. Casting mechanism; 601. Fixing plate; 602. Motor 1; 603. Rotating rod; 604. Support frame; 605. Boiler; 606. Discharge port; 607. Partition plate; 608. Water outlet pipe; 609. Spiral pipe; 610. Valve; 7. Fixing sleeve; 8. Fixing mechanism; 81. Bottom plate; 82. Motor 2; 83. Slot 1; 84. Ejector rod; 85 , fixing frame; 86, convex plate; 87, mold assembly; 871, mold one; 8711, convex rod; 8712, socket; 8713, slot two; 872, mold two; 8721, connecting sleeve one; 8722, plug rod; 8723, slot; 873, convex block; 8731, vent hole; 874, connecting sleeve two; 8741, plug block; 875, vertical rod; 876, connecting block; 877, bracket; 878, curved plate. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0035] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0036] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] For example 1, please refer to Figure 1-4 The present invention provides a technical solution: a production device for magnesium alloy anti-corrosion rods for water heaters, comprising a workbench 1, two legs 2 fixedly connected to the bottom of the workbench 1, a casting trough 3 provided inside the workbench 1, and further comprising:

[0038] The fixing sleeve 7 is located inside the casting tank 3 and is fixedly connected to the wall of the casting tank 3;

[0039] The ring plate 4, the outer surface of the ring plate 4 is fixedly connected to the wall of the casting trough 3, and the outer surface of the fixing sleeve 7 is fixedly connected to the inner wall of the ring plate 4, wherein the workbench 1, the ring plate 4 and the top of the fixing sleeve 7 are located in the same horizontal plane;

[0040] The pouring mechanism 6 includes two fixed plates 601, the bottoms of the two fixed plates 601 are fixedly connected to the top of the workbench 1, a motor 602 is fixedly connected to the surface of the fixed plate 601 at the back, the output end of the motor 602 is fixedly connected to a rotating rod 603, the rotating rod 603 is rotatably connected to the fixed plate 601 at the front through a bearing, the outer surface of the rotating rod 603 is fixedly connected to a support frame 604, the surface of the support frame 604 is fixedly connected to a boiler 605, a discharge port 606 is provided on the top of the boiler 605, the magnesium alloy melted inside the boiler 605 is discharged through the discharge port 606, after the magnesium alloy raw material is placed in the boiler 605 for heating, by starting the motor 602, the motor 602 drives the boiler 605 at the upper end of the support frame 604 to deflect through the rotating rod 603, and after the boiler 605 deflects to a certain angle, the magnesium alloy liquid in the boiler 605 flows out from the discharge port 606.

[0041] The inner wall of the boiler 605 is fixedly connected to a partition 607, and the surface of the boiler 605 is connected to a water outlet pipe 608. The water outlet pipe 608 is a hose. The connection between the water outlet pipe 608 and the boiler 605 is located at the upper end of the partition 607. The outer surface of the fixed sleeve 7 is covered with a spiral tube 609. The spiral tube 609 is connected to the water outlet pipe 608. The end of the spiral tube 609 away from the water outlet pipe 608 passes through the workbench 1 and extends to the outside of the workbench 1. A valve 610 is provided on the surface of the extended spiral tube 609. The hot water on the partition 607 flows into the spiral tube 609 through the outlet pipe 608. A fixing mechanism 8 is provided inside the fixed sleeve 7. A plurality of heat dissipation holes are provided on the surface of the fixed sleeve 7. The heat emitted from the surface of the spiral tube 609 enters the interior of the fixed sleeve 7 through the heat dissipation holes after being blocked on the surface of the ring plate 4. The valve 610 is used to control the discharge of the hot water in the spiral tube 609. The water poured on the partition 607 flows into the interior of the spiral tube 609 through the outlet pipe 608 after being heated by the boiler 605.

[0042] Example 2, based on Example 1, please refer to Figure 5 The present invention provides a technical solution: the fixing mechanism 8 includes a base plate 81 and a second motor 82. The second motor 82 is fixedly connected to the bottom of the workbench 1. The output end of the second motor 82 is fixedly connected to the central axis of the base plate 81. The base plate 81 is located inside the fixed sleeve 7. A slot 83 is provided on the surface of the base plate 81. A top rod 84 is fixedly connected to the central axis of the top of the base plate 81. The outer surface of the upper end of the top rod 84 is fixedly connected to a fixing frame 85. Four groups of convex plates 86 are fixedly connected to the inner wall of the fixed sleeve 7. A mold assembly 87 is arranged inside the fixing frame 85. By starting the second motor 82, the base plate 81 and the top rod 84 are driven to rotate by the second motor 82. After the top rod 84 rotates, the mold assembly 87 is driven to rotate through the fixing frame 85.

[0043] Example 3, based on Example 1 and Example 2, please refer to Figure 6-10The present invention provides a technical solution: the mold assembly 87 includes a mold 1 871, two sets of protruding rods 8711 are rotatably connected to the concave hole on the surface of the mold 1 871 via a rotating shaft, the fixing frame 85 is fixedly connected to the two sets of protruding rods 8711, and is rotatably connected to the mold 1 871 via the two sets of protruding rods 8711, the bottom of the mold 1 871 is located inside the slot 1 83, and two sets of sockets 8712 are opened on the surface of the mold 1 871;

[0044] The mold assembly 87 also includes a mold 2 872, which contacts the mold 1 871 and has the same shape and size. The bottom of the mold 2 872 is fixedly connected to two plug rods 8722, and the bottoms of the two plug rods 8722 respectively pass through two sockets 8712. The two plug rods 8722 are used to assist the mold 2 872 and the mold 1 871 in fitting together under the cooperation of the two sockets 8712. The mold 2 872 and the mold 1 871 can be divided into four groups for the production of magnesium alloy anti-corrosion rods with different diameters or multiple groups. The outer surface of the mold 2 872 is fixedly connected to two connecting sleeves 1 8721, two connecting sleeves 8722, and two connecting sleeves 8721. The inner wall of sleeve 1 8721 is in contact with the surface of mold 1 871. A protrusion 873 is fixedly connected to the surface of mold 1 871. An air vent 8731 is provided inside the protrusion 873. The air vent 8731 is connected to the interior of mold 1 871. The air vent 8731 is used to discharge the internal gas after mold 2 872 is combined with mold 1 871. When mold 1 871 and mold 2 872 are combined, mold 2 872 is fitted with mold 1 871 and moves vertically downward. Mold 2 872 drives connecting sleeve 1 8721 to slide down along mold 1 871 until the insertion rod 8722 is completely stuck in the insertion hole 8712.

[0045] The outer surface of the mold 1 871 is covered with two groups of connecting sleeves 2 874, and two groups of vertical rods 875 are fixedly connected to the ends of the two groups of connecting sleeves 2 874 that are close to each other. The two groups of connecting sleeves 2 874 are respectively in contact with the tops of the two groups of connecting sleeves 1 8721. The bottoms of the two groups of connecting sleeves 2 874 are fixedly connected with two plug-in blocks 8741. The tops of the two connecting sleeves 1 8721 are respectively provided with two slots 8723. The four plug-in blocks 8741 are respectively located in the four slots 8723 and are respectively slidably engaged with the four slots 8723. The connection sleeve 2 874 is restricted by the combination of the four groups of plug-in blocks 8741 and the slots 8723. A second slot 8713 is provided on the surface of the mold 1 871, and a connecting block 876 is provided inside the second slot 8713. A bracket 877 is fixedly connected to the surface of the connecting block 876. Two arc plates 878 are inserted into the bracket 877. The two arc plates 878 are in contact with the outer surfaces of the two vertical rods 875. The two arc plates 878 are used to fit the connecting block 876 into the second slot 8713 under the restriction of the vertical rods 875. The vertical rods 875 drive the second connecting sleeve 874 and the inserting block 8741 to move horizontally toward the first connecting sleeve 8721 until the inserting block 8741 is completely inserted into the slot 8723. The arc plate 878 is then placed by fitting the vertical rod 875, and the arc plate 878 is slid down along the vertical rod 875 until the arc plate 878 is inserted into the bracket 877, so that the bracket 877 drives the connecting block 876 to fit closely into the second slot 8713.

[0046] When the motor 2 82 drives the mold 1 871 to rotate, the mold 1 871 synchronously drives the bracket 877 to rotate through the connecting block 876. After the bracket 877 is driven to rotate, it gradually approaches the convex plate 86. Under the restriction of the convex plate 86, the bracket 877 is squeezed and drives the mold 1 871 to deflect along the slot 1 83 with the assistance of the convex rod 8711. When the deflection angle is maximum, the boiler 605 is driven to deflect and pour the molten magnesium alloy into the mold 1 871. After pouring a certain amount, the boiler 605 resets, and the motor 2 82 continues to start to drive the mold 1 871 to move continuously away from the convex plate 86 until the mold 1 871 returns to a vertical state.

[0047] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A production device for magnesium alloy anti-corrosion rods for water heaters, comprising a workbench (1), wherein two legs (2) are fixedly connected to the bottom of the workbench (1), and a casting groove (3) is provided inside the workbench (1), characterized in that: Also includes: A fixed sleeve (7), the fixed sleeve (7) being located inside the casting trough (3) and fixedly connected to the wall of the casting trough (3); A ring plate (4), wherein the outer surface of the ring plate (4) is fixedly connected to the wall of the casting trough (3), and the outer surface of the fixing sleeve (7) is fixedly connected to the inner wall of the ring plate (4), wherein the workbench (1), the ring plate (4) and the top of the fixing sleeve (7) are located in the same horizontal plane; A pouring mechanism (6), the pouring mechanism (6) comprising two fixed plates (601), the bottoms of the two fixed plates (601) being fixedly connected to the top of the workbench (1), the surface of the fixed plate (601) located at the back being fixedly connected to a motor 1 (602), the output end of the motor 1 (602) being fixedly connected to a rotating rod (603), the rotating rod (603) being rotatably connected to the fixed plate (601) located at the front via a bearing, the outer surface of the rotating rod (603) being fixedly connected to a support frame (604), the surface of the support frame (604) being fixedly connected to a boiler (605), the top of the boiler (605) being provided with a discharge port (606), and the magnesium alloy melted inside the boiler (605) being discharged through the discharge port (606).

2. The production device for magnesium alloy anti-corrosion rods for water heaters according to claim 1, characterized in that: The inner wall of the boiler (605) is fixedly connected to a partition (607), and the surface of the boiler (605) is connected to a water outlet pipe (608). The connection between the water outlet pipe (608) and the boiler (605) is located at the upper end of the partition (607). The outer surface of the fixed sleeve (7) is covered with a spiral tube (609). The spiral tube (609) is connected to the water outlet pipe (608). The end of the spiral tube (609) away from the water outlet pipe (608) passes through the workbench (1) and extends to the outside of the workbench (1). A valve (610) is provided on the surface of the extended spiral tube (609). The hot water on the partition (607) flows into the spiral tube (609) through the water outlet pipe (608). The valve (610) is used to control the discharge of the hot water in the spiral tube (609).

3. The production device for magnesium alloy anti-corrosion rods for water heaters according to claim 1, characterized in that: A fixing mechanism (8) is provided inside the fixing sleeve (7), and a plurality of heat dissipation holes are provided on the surface of the fixing sleeve (7). Heat emitted from the surface of the spiral tube (609) enters the interior of the fixing sleeve (7) through the heat dissipation holes after being blocked by the surface of the ring plate (4).

4. The production device for magnesium alloy anti-corrosion rods for water heaters according to claim 3, characterized in that: The fixing mechanism (8) includes a base plate (81) and a second motor (82), wherein the second motor (82) is fixedly connected to the bottom of the workbench (1), and the output end of the second motor (82) is fixedly connected to the central axis of the base plate (81). The base plate (81) is located inside the fixing sleeve (7), and a first slot (83) is provided on the surface of the base plate (81). A top rod (84) is fixedly connected to the central axis of the top of the base plate (81), and a fixing frame (85) is fixedly connected to the outer surface of the upper end of the top rod (84). Four groups of convex plates (86) are fixedly connected to the inner wall of the fixing sleeve (7), and a mold assembly (87) is provided inside the fixing frame (85). After the second motor (82) is started, it is used to drive the base plate (81) and the top rod (84) to rotate.

5. The production device for magnesium alloy anti-corrosion rods for water heaters according to claim 4, characterized in that: The mold assembly (87) includes a mold 1 (871), two groups of protruding rods (8711) are rotatably connected to the concave holes on the surface of the mold 1 (871) via a rotating shaft, the fixing frame (85) is fixedly connected to the two groups of protruding rods (8711), and is rotatably connected to the mold 1 (871) via the two groups of protruding rods (8711), the bottom of the mold 1 (871) is located inside the slot 1 (83), and two groups of jacks (8712) are opened on the surface of the mold 1 (871); The mold assembly (87) further includes a second mold (872), the second mold (872) contacts the first mold (871), and the shapes and sizes thereof are adapted to each other. The bottom of the second mold (872) is fixedly connected to two insertion rods (8722), and the bottoms of the two insertion rods (8722) respectively pass through two insertion holes (8712). The two insertion rods (8722) are used to assist the second mold (872) and the first mold (871) in fitting together in the two insertion holes (8712).

6. The production device for magnesium alloy anti-corrosion rods for water heaters according to claim 5, characterized in that: The outer surface of the mold 2 (872) is fixedly connected to two connecting sleeves 1 (8721), and the inner walls of the two connecting sleeves 1 (8721) are in contact with the surface of the mold 1 (871). The surface of the mold 1 (871) is fixedly connected to a protrusion (873), and the protrusion (873) is provided with an air vent (8731) inside. The air vent (8731) is connected to the inside of the mold 1 (871), and the air vent (8731) is used to discharge the gas inside after the mold 2 (872) and the mold 1 (871) are combined.

7. The production device for magnesium alloy anti-corrosion rods for water heaters according to claim 6, characterized in that: The outer surface of the mold 1 (871) is covered with two groups of connecting sleeves 2 (874), and the two groups of connecting sleeves 2 (874) are fixedly connected to one end close to each other with two groups of vertical rods (875). The two groups of connecting sleeves 2 (874) are respectively in contact with the tops of the two groups of connecting sleeves 1 (8721). The bottoms of the two groups of connecting sleeves 2 (874) are fixedly connected with two plug-in blocks (8741). The tops of the two connecting sleeves 1 (8721) are respectively provided with two slots (8723). The four plug-in blocks (8741) are respectively located in the four slots (8723) and are respectively slidably engaged with the four slots (8723). The four groups of plug-in blocks (8741) are matched with the slots (8723) to realize the restriction of the connecting sleeve 2 (874).

8. The production device for magnesium alloy anti-corrosion rods for water heaters according to claim 7, characterized in that: The surface of the mold 1 (871) is provided with a second slot (8713), the second slot (8713) is provided with a connecting block (876) inside, the surface of the connecting block (876) is fixedly connected with a bracket (877), the bracket (877) is internally plugged with two arc-shaped plates (878), the two arc-shaped plates (878) are in contact with the outer surfaces of the two vertical rods (875), and the two arc-shaped plates (878) are used to fit the connecting block (876) to the second slot (8713) under the restriction of the vertical rods (875).

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