A casting mold for forming a mechanical housing of a water pump

Abstract

The application relates to the technical field of casting molds, in particular to a casting mold for forming a water pump mechanical shell, which comprises a water pump shell casting mold body, a feeding port is arranged in the middle of the top outer wall of the water pump shell casting mold body, a sealing ring I is fixedly connected to the top of the inner wall of the feeding port, and a pouring pipe is movably inserted into the feeding port. The paraffin stores heat through phase change instead of directly transferring heat, so that the metal solution can keep liquid for a longer time at the pouring pipe, the cooling rate of the metal solution is reduced, the solidification time of the metal solution is delayed, the metal solution can continuously and stably flow into the cavity, the problem that pouring is interrupted or the flow is not smooth due to the premature solidification of the metal solution is solved, the metal solution can fully fill each corner of the cavity, especially the complex structure part, the shape of the casting is ensured to be complete and the size is ensured to be accurate, and the overall integrity and the quality uniformity of the water pump mechanical shell casting are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of casting molds, and particularly relates to a casting mold for forming a water pump mechanical shell. BACKGROUND

[0002] The casting mold for forming a water pump mechanical shell is a precision mold specially used for metal solution casting forming, and its core structure includes a cavity formed by a fixed mold and a movable mold, and a pouring system integrated in the fixed mold, that is, a pouring pipe serving as a "throat" for metal solution to enter the cavity, which is usually designed in a conical or streamlined shape to reduce turbulence, and is matched with a straight gate, a cross gate and an inner pouring pipe to form a gradient shunt path, and common connection modes of the pouring pipe and the mold include fixed connection, detachable connection and semi-fixed connection.

[0003] The liquid metal (such as cast iron, aluminum alloy, etc.) is precisely formed into the geometric structure of a pump body, a pump cover and the like through cavity design, and the types cover sand molds, metal molds, die casting and low-pressure casting molds, etc., which can be selected according to different material and precision requirements, and the core function is to ensure the shell size precision, surface quality and internal compactness, and at the same time, through reusability, high-efficiency batch production is realized, which is a key conversion tool connecting metal materials and final products in water pump manufacturing.

[0004] However, the following problems still exist when the traditional device is used:

[0005] The patent with the patent application publication number CN213559839U discloses a water pump body casting mold, which cools through first and second chills to eliminate the phenomenon of shrinkage holes, and further eliminates the phenomenon of shrinkage holes by adding a second riser to cooperate with the first cavity inlet close to the entire cavity inlet.

[0006] In the prior art, after the cavity is filled with metal solution through the pouring pipe, the water pump mechanical shell casting needs to be cooled, and if the metal solution in the pouring pipe coagulates too early, the distal end of the water pump mechanical shell casting is prone to shrinkage, thereby affecting the overall forming quality of the water pump mechanical shell casting.

[0007] Therefore, we need a casting mold for forming a water pump mechanical shell to solve the problem of early coagulation of the metal solution in the pouring pipe, which can delay the coagulation time of the metal solution in the pouring pipe. SUMMARY

[0008] In view of the deficiencies in the prior art, the application aims to provide a casting mold for forming a water pump mechanical shell, which has the advantage of delaying the coagulation time of the metal solution in the pouring pipe.

[0009] In order to achieve the above object, the present application provides the following technical scheme: A water pump mechanical shell forming casting mold, including water pump shell casting mold body, the position of the middle of the outer wall of the top of the water pump shell casting mold body is provided with a feeding port, the upper wall of the feeding port is fixedly connected with a sealing ring one, the inside of the feeding port is movably connected with a pouring pipe, the outer wall of the pouring pipe is fixedly connected with a fixed plate, the outer wall of the bottom of the fixed plate is flange connected with the outer wall of the top of the water pump shell casting mold body, the outer wall of the top of the pouring pipe is provided with a cavity one, the inside of the cavity one is provided with a delayed cooling mechanism, the delayed cooling mechanism includes a replacement box, the outer wall of the replacement box is movably connected with the inside of the cavity one.

[0010] Preferably, the outer wall of the replacement box is provided with a micropore one, the upper wall of the inner wall of the replacement box is fixedly connected with a fixed shell, one end of the inside of the fixed shell is provided with a placing groove, the inside of the placing groove is fixedly connected with a magnetic block two, the inside of the replacement box is provided with paraffin, the top of the outer wall of the pouring pipe is movably connected with a plugging shell.

[0011] Preferably, the inner wall of the top of the plugging shell is fixedly connected with a sealing ring two, the outer wall of the sealing ring two is movably connected with the upper wall of the inside of the replacement box, the inner wall of the top of the plugging shell is fixedly connected with an L-shaped plate, the outer wall of the L-shaped plate is movably connected with the inside of the fixed shell, the outer wall of one end of the L-shaped plate is magnetically connected with the outer wall of one end of the magnetic block two.

[0012] Preferably, the outer wall of the plugging shell is provided with a fixed hole two, the outer wall of the plugging shell is provided with a fixed hole one on one side of the fixed hole two, and a V-shaped mark is arranged on the fixed hole one.

[0013] Preferably, the outer wall of the top of the fixed plate is fixedly connected with a mounting plate one, a threaded hole is formed in the middle of one side of the mounting plate one, a plug rod is screwedly connected in the threaded hole, the outer wall of one end of the plug rod is movably connected with the inside of the fixed hole two, and the outer wall of one end of the plug rod is movably connected with the inside of the fixed hole one.

[0014] Preferably, a rotating groove is formed in the plug rod, a mounting plate two is rotatably connected in the rotating groove, a tightening spring is fixedly connected to the outer wall of one side of the mounting plate two, the outer wall of the inside of the tightening spring is movably sleeved with the outer wall of the plug rod, and the outer wall of one end of the tightening spring is fixedly connected with the outer wall of one side of the mounting plate one.

[0015] Preferably, a micropore two is formed in the position where the outer wall of the pouring pipe contacts with the feeding port, and the inner wall of one side of the micropore two is alignedly connected with the outer wall of one side of the micropore one.

[0016] Preferably, a guide column is movably connected in the inside of the pouring pipe, and a magnetic coating is fixedly connected to the outer wall of the guide column.

[0017] Preferably, a connecting rod is fixedly connected to the outer wall at the bottom of the guide column, and a ceramic foam filter is fixedly connected to the outer wall at the bottom of the connecting rod. The outer wall at the bottom of the ceramic foam filter is in movable contact with the lower part of the inside of the casting pipe.

[0018] Preferably, an installation ring is fixedly connected to the upper part of the inner wall of the casting pipe, a connecting frame is fixedly connected to the outer wall of the guide column, a groove is opened on the outer wall of the top of the installation ring, a magnetic block is fixedly connected to the lower part of the groove, the outer wall of the connecting frame is movably inserted into the inside of the groove, and the outer wall of the bottom of the connecting frame is magnetically connected to the outer wall of the top of the magnetic block.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] Paraffin stores heat through phase change rather than directly transferring heat, allowing the molten metal to remain liquid at the gating pipe for a longer period. This reduces the cooling rate of the molten metal, thus delaying its solidification. This ensures a continuous and stable flow of the molten metal into the mold cavity, preventing problems such as premature solidification that could lead to pouring interruptions or poor flow. The molten metal can fully fill every corner of the mold cavity, especially complex structural areas, ensuring the integrity and dimensional accuracy of the casting. This improves the overall integrity and uniformity of the water pump housing casting. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle.

[0023] Figure 3 This is a schematic diagram of the feed inlet structure of the present invention.

[0024] Figure 4 This is a schematic cross-sectional view of the casting pipe structure of the present invention.

[0025] Figure 5 This is a schematic diagram of the L-shaped plate structure of the present invention.

[0026] Figure 6 This is a schematic diagram of the top structure of the casting pipe of the present invention.

[0027] Figure 7 This is a schematic diagram of the groove structure of the present invention.

[0028] Figure 8 This is a schematic diagram of the cavity structure of the present invention.

[0029] Figure 9 This is a schematic diagram of the replacement box structure of the present invention.

[0030] Figure 10 It is a fixed shell structure schematic diagram of the application.

[0031] Figure 11 It is a mounting plate one structure schematic diagram of the application.

[0032] Figure 12 It is a cavity two structure schematic diagram of the application.

[0033] Figure 13 It is a plugging shell structure schematic diagram of the application.

[0034] In the figure: 1, water pump shell casting mold body; 11, feed inlet; 12, sealing ring one; 2, plugging shell; 21, fixed hole one; 22, sealing ring two; 23, L-shaped plate; 24, fixed shell; 25, magnetic block two; 26, fixed hole two; 3, fixed plate; 31, pouring pipe; 32, mounting ring; 33, material guide column; 34, connecting frame; 35, connecting rod; 36, ceramic foam filter; 37, magnetic block one; 38, groove; 39, cavity one; 310, micropore two; 4, mounting plate one; 41, plug rod; 42, tightening spring; 43, mounting plate two; 44, heat sink; 45, cavity two; 5, replacement box; 51, micropore one. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme of the application clear, complete description, and the advantages are more clear and obvious, the following will be further described in detail with the help of the attached drawings. It should be understood that the specific embodiments described here are part of the embodiments of the application, not all the embodiments, only to explain the embodiments of the application, and not to limit the embodiments of the application, all other embodiments obtained by the ordinary skill in the art without doing creative work, belong to the scope of protection of the application.

[0036] Embodiment one: please refer to Figures 1 to 13 The application provides a water pump mechanical shell forming casting mold technical scheme: including water pump shell casting mold body 1, water pump shell casting mold body 1 top outer wall middle position is provided with feed inlet 11, the upper wall of feed inlet 11 is fixedly connected with sealing ring one 12, the inside of feed inlet 11 is movably inserted with pouring pipe 31, the outer wall of pouring pipe 31 is fixedly connected with fixed plate 3, the outer wall of fixed plate 3 bottom is flange connected with the outer wall of water pump shell casting mold body 1 top, the outer wall of pouring pipe 31 top is provided with cavity one 39, the inside of cavity one 39 is provided with delayed cooling mechanism, the outer wall of replacement box 5 is movably inserted with the inside of cavity one 39.

[0037] The flange is connected through the fixed plate 3 and the top of the water pump shell casting mold body 1, so that the pouring pipe 31 is tightly fixed in the feed inlet 11, so as to complete the connection of the pouring pipe 31 and the water pump shell casting mold body 1. The detachable pouring pipe 31 increases the flexibility of itself, which is convenient for workers to disassemble and clean or replace to another water pump shell casting mold body 1.

[0038] In the embodiment two, the outer wall of the replacement box 5 is provided with a plurality of micropores one 51, the inner wall of the replacement box 5 is fixedly connected with a fixed shell 24 at the upper side, one end of the fixed shell 24 is provided with a placing groove, the placing groove is fixedly connected with a magnetic block two 25, the inside of the replacement box 5 is provided with paraffin, the outer wall of the top of the pouring pipe 31 is movably connected with a plugging shell 2, the inner wall of the top of the plugging shell 2 is fixedly connected with a sealing ring two 22, the outer wall of the sealing ring two 22 is movably inserted into the upper side of the inside of the replacement box 5, the inner wall of the top of the plugging shell 2 is fixedly connected with an L-shaped plate 23, the outer wall of the L-shaped plate 23 is movably inserted into the inside of the fixed shell 24, the outer wall of one end of the L-shaped plate 23 is magnetically connected with the outer wall of one end of the magnetic block two 25, the outer wall of the pouring pipe 31 is provided with a plurality of micropores two 310 at the position where the pouring pipe 31 contacts with the feed inlet 11, and the inner wall of one side of the micropore two 310 is alignedly connected with the outer wall of one side of the micropore one 51.

[0039] When the high-temperature metal solution flows into the pouring pipe 31, the paraffin absorbs the heat of the metal solution and melts, but the temperature of the paraffin does not rise, the paraffin stores heat through phase change instead of directly transferring heat, so that the metal solution remains liquid for a longer time at the pouring pipe 31, reduces the cooling rate of the metal solution, delays the solidification time of the metal solution, ensures that the metal solution continuously and stably flows into the cavity, prevents the pouring from being interrupted or the flow from being not smooth due to the premature solidification of the metal solution, makes the metal solution can fully fill the corners of the cavity, especially the complex structure parts, ensures the shape of the casting to be complete and the size to be accurate, and improves the overall integrity and quality uniformity of the pump mechanical shell casting.

[0040] In the embodiment three, the outer wall of the plugging shell 2 is provided with a fixed hole two 26, the outer wall of the plugging shell 2 is provided with a fixed hole one 21 at one side of the fixed hole two 26, the fixed hole one 21 is provided with a V-shaped mark, the outer wall of the top of the fixed plate 3 is fixedly connected with a mounting plate one 4, a threaded hole is formed in the middle of one side of the mounting plate one 4, a plug rod 41 is screwedly connected into the threaded hole, the outer wall of one end of the plug rod 41 is movably inserted into the inside of the fixed hole two 26, the outer wall of one end of the plug rod 41 is movably inserted into the inside of the fixed hole one 21, a rotating groove is formed in the plug rod 41, a mounting plate two 43 is rotatably connected into the rotating groove, a tightening spring 42 is fixedly connected to the outer wall of one side of the mounting plate two 43, the inside of the tightening spring 42 is movably sleeved with the outer wall of the plug rod 41, and the outer wall of one end of the tightening spring 42 is fixedly connected with the outer wall of one side of the mounting plate one 4.

[0041] By the staff counterclockwise rotating the plug 41, the plug 41 can be removed from the inside of the fixed hole 21, through the plug 41 and the mounting plate 1 between the threaded connection, the plug 41 can be inserted into the fixed hole 21 inside, increase the plug 41 to the fixed hole 21 fixed, prevent the plug 41 in the work appears to shake from the inside of the fixed hole 21 slip, the corresponding increase the fixed effect of the fixed hole 21;

[0042] By tightening the spring 42 itself elasticity, will exert a thrust on the plug 41, prevent the plug 41 and the mounting plate 1 between the threaded connection wear, tightening spring 42 can still be fixed in the plug 41 fixed hole 21 or fixed hole 26 inside, increase the stability of the plug 41 to the fixed hole 21 or fixed hole 26 fixed.

[0043] Example four: on the basis of example two, the inside of the pouring pipe 31 is movably inserted with the guide column 33, the outer wall of the guide column 33 is fixedly connected with the magnetic coating, the outer wall of the bottom of the guide column 33 is fixedly connected with the connecting rod 35, the outer wall of the bottom of the connecting rod 35 is fixedly connected with the ceramic foam filter 36, and the outer wall of the bottom of the ceramic foam filter 36 is movably contacted with the lower part inside the pouring pipe 31.

[0044] Through the guide column 33 arranged in the pouring pipe 31, because the guide column 33 is provided with a spiral track, the metal solution will rotate along the spiral track on the guide column 33 into the cavity inside the water pump shell casting mold body 1, the metal solution will generate centrifugal force in the process of rotation, and the centrifugal force is used to discharge gas, so as to reduce the bubble content in the metal solution, because the gas is discharged, the water pump mechanical shell is avoided to have more pores in the forming process, thereby reducing the porosity of the water pump mechanical shell after forming, which is helpful to improve the quality and performance of the water pump mechanical shell;

[0045] The magnetic coating has the magnetic adsorption force, which can adsorb the iron particles in the metal solution, so that the iron particles in the metal solution are prevented from entering the cavity inside the water pump shell casting mold body 1, the possibility of impurities entering the formed part is reduced from the source, the purity of the metal solution is significantly increased by effectively intercepting and adsorbing the iron particles, the metal solution with higher purity can better fill the mold cavity in the casting process, reducing the problem of uneven filling caused by impurities, laying a foundation for manufacturing high-quality water pump mechanical shell, after reducing impurities, the shell can better resist the erosion and wear of the external environment, prolong the service life, improve the overall performance and stability of the water pump.

[0046] The upper wall of the pouring pipe 31 is fixedly connected with a mounting ring 32, the outer wall of a material guiding column 33 is fixedly connected with a connecting frame 34, a groove 38 is formed in the outer wall of the top of the mounting ring 32, a magnetic block 37 is fixedly connected to the inside of the groove 38, the outer wall of the connecting frame 34 is movably inserted into the inside of the groove 38, and the outer wall of the bottom of the connecting frame 34 is magnetically connected with the outer wall of the top of the magnetic block 37.

[0047] The connecting frame 34 is pulled upward by a worker, so that the connecting frame 34 is separated from the magnetic block 37, the material guiding column 33 is driven to move upward in the pouring pipe 31, the material guiding column 33 drives the ceramic foam filter 36 to move out of the pouring pipe 31, and the material guiding column 33 and the ceramic foam filter 36 are cleaned.

[0048] The inside of the plug rod 41 is provided with a cavity 45, the inner wall of one end of the cavity 45 is fixedly connected with a heat dissipation plate 44, and the cavity 45 is filled with copper powder.

[0049] The cavity 45 in the plug rod 41 is filled with copper powder, the copper powder absorbs heat of the fixed hole 21, the heat deformation of the fixed hole 21 is reduced, and the fixing effect of the plug rod 41 on the fixed hole 21 is improved.

[0050] The working principle and use process of the application are as follows: in working, the pouring pipe 31 drives the fixed plate 3 to be inserted into the inside of the feeding port 11, the outer wall of the pouring pipe 31 is tightly attached to the sealing ring 12, the sealing effect of the sealing ring 12 enhances the sealing between the feeding port 11 and the pouring pipe 31, the connection between the pouring pipe 31 and the feeding port 11 is more tightly, the fixed plate 3 is flange-connected with the top of the water pump shell casting mold body 1, the pouring pipe 31 is tightly fixed in the feeding port 11, the connection between the pouring pipe 31 and the water pump shell casting mold body 1 is completed, the detachable pouring pipe 31 increases the flexibility of itself, and workers can easily disassemble and clean or replace the pouring pipe 31 to another water pump shell casting mold body 1.

[0051] When the metal solution enters the cavity inside the water pump shell casting mold body 1 through the inside of the pouring pipe 31, the metal solution will rotate along the spiral track on the guide column 33 due to the spiral track provided on the guide column 33, and enter the cavity inside the water pump shell casting mold body 1. The metal solution will generate centrifugal force in the process of rotation, and the gas will be discharged by the centrifugal force, reducing the bubble content inside the metal solution. Since the gas is discharged, the water pump mechanical shell is prevented from having many pores inside when it is formed, thereby reducing the porosity of the water pump mechanical shell after forming, which helps to improve the quality and performance of the water pump mechanical shell.

[0052] The magnetic coating provided on the outer wall of the spiral track of the guide column 33 is a composite coating mixed from neodymium iron boron magnetic powder and high-temperature resistant resin, which has magnetic adsorption effect and high-temperature resistance. When the metal solution rotates and flows downward on the outer wall of the spiral track, the magnetic adsorption force of the magnetic coating will adsorb the iron particles inside the metal solution, preventing the iron particles in the metal solution from entering the cavity inside the water pump shell casting mold body 1. By intercepting the iron particles in the metal solution, the possibility of impurities entering the formed parts is reduced from the source. By effectively intercepting and adsorbing the iron particles, the purity of the metal solution is significantly increased. The metal solution with higher purity can better fill the mold cavity during casting, reducing problems such as uneven filling caused by impurities. This lays the foundation for manufacturing high-quality water pump mechanical shells, and after reducing impurities, the shell can better resist external environmental erosion and wear, prolonging the service life and improving the overall performance and stability of the water pump.

[0053] Since the ceramic foam filter 36 is fixedly connected to the bottom of the guide column 33 through the connecting rod 35, the metal solution can only enter the cavity after passing through the ceramic foam filter 36 after passing through the guide column 33. The ceramic foam filter 36 has a complex three-dimensional network structure with small pores that are interconnected. When the metal solution flows through, the oxidized inclusions will be intercepted and adsorbed on the surface of the pores or retained inside the pores, thereby significantly reducing the content of oxidized inclusions in the metal solution, further purifying the metal solution, and ensuring that the metal solution entering the cavity has higher quality.

[0054] When the metal solution moves downward through the guide column 33, it will transfer the internal heat to the paraffin filled in the replacement box 5 through the inner wall of the pouring pipe 31, and the solid paraffin becomes liquid after absorbing the heat of the metal solution, thereby delaying the solidification time of the metal solution at the pouring pipe 31 and preventing the cavity from overheating. When the paraffin changes from solid to liquid, it will absorb a large amount of heat, but the temperature remains constant. When the high-temperature metal solution flows into the pouring pipe 31, the paraffin absorbs the heat of the metal solution and melts, but the temperature does not rise. The paraffin stores heat through phase change rather than directly transferring heat, so that the metal solution remains liquid at the pouring pipe 31 for a longer time, reduces the cooling rate of the metal solution, thereby delaying the solidification time of the metal solution, ensuring that the metal solution continuously and stably flows into the cavity, preventing the problem of interrupted pouring or poor flow caused by premature solidification of the metal solution, and enabling the metal solution to fully fill the corners of the cavity, especially complex structure parts, ensuring the complete shape and accurate size of the casting, and improving the overall integrity and quality uniformity of the pump mechanical shell casting.

[0055] When the plug rod 41 is inserted into the fixed hole one 21, the micro hole one 51 on the replacement box 5 will be aligned with the micro hole two 310 on the pouring pipe 31, and the V-shaped structure on the fixed hole one 21 can quickly and accurately distinguish the fixed hole one 21 and the fixed hole two 26, and determine which one is used for paraffin outflow and which one is used for paraffin closing. The melted paraffin in the replacement box 5 seeps out through the micro hole one 51 and the micro hole two 310 to the contact surface of the pouring pipe 31 and the feed inlet 11, increasing the lubrication of the contact position of the pouring pipe 31 and the feed inlet 11, avoiding wear between the pouring pipe 31 and the feed inlet 11 during work, accordingly prolonging the service life of the pouring pipe 31 and reducing the equipment replacement cost. The paraffin has good chemical stability and oxidation resistance, and the lubricating film formed on the contact surface not only reduces wear, but also prevents rust and corrosion of the contact surface.

[0056] Through the cavity two 45 inside the plug rod 41, and the copper powder filled in the cavity two 45, the copper powder can absorb the heat of the fixed hole one 21 through the contact surface when the plug rod 41 is inserted into the fixed hole one 21 and the fixed hole two 26, avoiding excessive heat inside the fixed hole one 21, causing thermal deformation of the fixed hole one 21, affecting the fixing effect of the plug rod 41 on the fixed hole one 21. Accordingly, the heat of the fixed hole one 21 is absorbed by the copper powder and then dissipated by the heat sink 44, thereby reducing the thermal deformation of the fixed hole one 21 and increasing the fixing effect of the plug rod 41 on the fixed hole one 21.

[0057] By the staff counterclockwise rotating plug rod 41, can make plug rod 41 from the fixed hole one 21 inside move out, through the thread connection between plug rod 41 and mounting plate one 4, can increase the fixation of plug rod 41 to fixed hole one 21 when plug rod 41 inserts inside fixed hole one 21, prevent the plug rod 41 from shaking and falling from the inside of fixed hole one 21 when working, correspondingly increase the fixed effect to fixed hole one 21.

[0058] Again through the cooperation between mounting plate two 43 and tightening spring 42, when plug rod 41 rotates, make tightening spring 42 keep static on plug rod 41 and not follow plug rod 41 to rotate, when plug rod 41 inserts inside fixed hole one 21 or fixed hole two 26, through the elasticity of tightening spring 42 itself, will exert a thrust on plug rod 41, prevent the thread connection between plug rod 41 and mounting plate one 4 from wearing, tightening spring 42 can still fix plug rod 41 inside fixed hole one 21 or fixed hole two 26, increase the stability of plug rod 41 to fixed hole one 21 or fixed hole two 26.

[0059] When plug rod 41 is taken out from inside fixed hole one 21, the fixation between plug rod 41 and fixed hole one 21 can be released, at this time the staff rotates the sealing shell 2, because the plug connection between the L-shaped plate 23 on the sealing shell 2 and the fixed shell 24 on the replacement box 5, when the sealing shell 2 rotates, the fixed hole one 21 can drive the replacement box 5 to rotate, when the fixed hole two 26 on the sealing shell 2 is aligned with the plug rod 41, stop rotating the sealing shell 2, then insert the plug rod 41 into the inside of fixed hole two 26 to fix the sealing shell 2, at this time, the micropore one 51 on the replacement box 5 is staggered with the micropore two 310, the paraffin in the replacement box 5 can not continue to seep out, so as to increase the flexibility of paraffin outflow, so that the staff can decide whether to lubricate the pouring pipe 31 according to the situation on the spot, improve the pertinence and effectiveness of lubrication.

[0060] When the plugging shell 2 is removed from the pouring pipe 31 by releasing the fixation of the plugging shell 2, the L-shaped plate 23 pulls the fixing shell 24 to move upward due to the L-shaped structure of the L-shaped plate 23. Since the fixing shell 24 is fixedly connected with the replacement box 5, the replacement box 5 is driven to move upward in the cavity one 39 along with the upward movement of the fixing shell 24, so as to move away from the inside of the cavity one 39. Then, the worker holds the plugging shell 2 with one hand and rotates the replacement box 5 with the other hand, so that the replacement box 5 drives the fixing shell 24 to rotate on the plugging shell 2, thereby separating the L-shaped plate 23 from the magnetic block two 25, moving the L-shaped plate 23 to one side of the fixing shell 24, and then pulling the replacement box 5 downward to separate the replacement box 5 from the plugging shell 2, so as to facilitate the worker to clean or replace the paraffin in the replacement box 5. Thus, the residue generated in the paraffin after reaction is avoided when the paraffin deforms due to repeated heat absorption, and the melted paraffin is prevented from seeping out from the micro hole one 51.

[0061] It should be noted that the sealing ring two 22 arranged on the top of the plugging shell 2 increases the sealing between the plugging shell 2 and the replacement box 5 to prevent the paraffin from flowing out from the contact surface between the replacement box 5 and the plugging shell 2. The magnetic connection between the magnetic block two 25 and the L-shaped plate 23 increases the stability of the L-shaped plate 23 in the inside of the fixing shell 24, so that the replacement box 5 does not move away from the inside of the fixing shell 24 when the plugging shell 2 drives the replacement box 5 to rotate in the cavity one 39 to adjust the position of the micro hole one 51.

[0062] Since the guide column 33 is inserted into the groove 38 of the mounting ring 32 through the connecting frame 34, and is fixed in the pouring pipe 31 through the magnetic connection between the connecting frame 34 and the magnetic block one 37, the rotation of the guide column 33 is avoided when the guide column 33 is impacted by the metal solution, and the stability of the guide column 33 in the pouring pipe 31 is increased. Since the metal solution impacts downward, the connecting frame 34 is pressed more tightly into the groove 38, and the risk that the connecting frame 34 falls off from the groove 38 is further prevented through the magnetic connection between the magnetic block one 37 and the connecting frame 34.

[0063] The connecting frame 34 is separated from the magnetic block one 37 by pulling the connecting frame 34 upward with the hand of the worker, and the guide column 33 is driven to move upward in the pouring pipe 31. Since the guide column 33 is fixedly connected with the ceramic foam filter 36 through the connecting rod 35, the guide column 33 drives the ceramic foam filter 36 to move from the inside of the pouring pipe 31, so as to facilitate the worker to clean the guide column 33 and the ceramic foam filter 36.

[0064] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A casting mold for forming a mechanical housing of a water pump, comprising a water pump housing casting mold body (1), characterized in that: The water pump shell casting mold body (1) top outer wall middle position is provided with feeding port (11), the feeding port (11) inner wall upper fixedly connected with sealing ring one (12), the feeding port (11) inside movablely inserted with pouring pipe (31), the pouring pipe (31) outer wall fixedly connected with fixed plate (3), the fixed plate (3) bottom outer wall and water pump shell casting mold body (1) top outer wall flange connection, the pouring pipe (31) top outer wall is provided with cavity one (39), the cavity one (39) inside is provided with delaying cooling mechanism; The delaying cooling mechanism, including replacement box (5), the replacement box (5) outer wall and cavity one (39) inside movablely inserted, the replacement box (5) outer wall is provided with micropore one (51), the replacement box (5) inner wall upper fixedly connected with fixed shell (24), the fixed shell (24) inside one end is provided with placing groove, the placing groove inside fixedly connected with magnetic block two (25), the replacement box (5) inside is provided with paraffin, the pouring pipe (31) top outer wall movablely contacted with blocking shell (2); The pouring pipe (31) inside movablely inserted with guide column (33), the guide column (33) outer wall fixedly connected with magnetic coating, the guide column (33) bottom outer wall fixedly connected with connecting rod (35), the connecting rod (35) bottom outer wall fixedly connected with ceramic foam filter (36), the ceramic foam filter (36) bottom outer wall and pouring pipe (31) inside lower movable contact.

2. A casting mold for forming a water pump mechanical housing according to claim 1, characterized in that: The blocking shell (2) top inner wall fixedly connected with sealing ring two (22), the sealing ring two (22) outer wall and replacement box (5) inside upper movablely inserted, the blocking shell (2) top inner wall fixedly connected with L-shaped plate (23), the L-shaped plate (23) outer wall and fixed shell (24) inside movablely inserted, the L-shaped plate (23) one end outer wall and magnetic block two (25) one end outer wall magnetic connection.

3. A casting mold for forming a water pump mechanical housing according to claim 1, characterized in that: The outer wall of the blocking shell (2) is provided with a fixing hole two (26), and the outer wall of the blocking shell (2) is provided with a fixing hole one (21) on one side of the fixing hole two (26). A V-shaped mark is arranged on the fixing hole one (21).

4. A casting mold for forming a water pump mechanical housing according to claim 3, characterized in that: The outer wall of the fixed plate (3) is fixedly connected with the mounting plate one (4), and a threaded hole is formed in the middle of one side of the mounting plate one (4). A plug rod (41) is screwed into the threaded hole. The outer wall of one end of the plug rod (41) is movably inserted into the inside of the fixing hole two (26), and the outer wall of one end of the plug rod (41) is movably inserted into the inside of the fixing hole one (21).

5. A casting mold for forming a water pump mechanical housing according to claim 4, characterized in that: A rotating groove is formed in the plug rod (41), and a mounting plate two (43) is rotatably connected in the rotating groove. The outer wall of one side of the mounting plate two (43) is fixedly connected with a tightening spring (42). The outer wall of one end of the tightening spring (42) is fixedly connected with the outer wall of one side of the mounting plate one (4).

6. A casting mold for forming a water pump mechanical housing according to claim 1, characterized in that: The position, which is contacted by the outer wall of the pouring pipe (31) and the feeding port (11), is provided with micro holes two (310), and the inner wall of one side of the micro holes two (310) is connected with the outer wall of one side of the micro holes one (51).

7. A casting mold for forming a water pump mechanical housing according to claim 1, characterized in that: The outer wall of the top of the mounting ring (32) is provided with a groove (38), the lower part of the inside of the groove (38) is fixedly connected with a magnetic block one (37), the outer wall of the connecting frame (34) is movably inserted into the inside of the groove (38), and the outer wall of the bottom of the connecting frame (34) is magnetically connected with the outer wall of the top of the magnetic block one (37).

Images