Mold runner structure of motorcycle water pump cover

By introducing an L-shaped arc-shaped sleeve into the flow channel of the motorcycle water pump cover mold to engage with the grouting hole, the problem of molten metal spillage was solved, achieving efficient molten metal pouring and improving production efficiency and practicality.

CN224182062UActive Publication Date: 2026-05-01RUIAN KECHUANG AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
RUIAN KECHUANG AUTO PARTS CO LTD
Filing Date
2025-04-23
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

The existing flow channel structure of motorcycle water pump cover molds is prone to spillage during the pouring of molten metal, resulting in waste of molten metal and insufficient practicality.

Method used

A mold flow channel structure was designed, which includes a grouting hole, a main channel, a branch channel, a grouting hopper, and a U-shaped handle. The grouting hopper is securely connected to the grouting hole by an L-shaped arc sleeve, which increases the diameter of the pouring opening and prevents molten metal from spilling.

Benefits of technology

It effectively prevents molten metal from spilling, avoids waste, and improves the practicality and production efficiency of the mold flow channel.

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Abstract

The utility model relates to the technical field of die-casting dies, in particular to a die runner structure of a motorcycle water pump cover, which can prevent molten metal from scattering, avoid waste of the molten metal and improve practicability. Comprising a grouting hole, the bottom of the grouting hole is communicated with a main runner, the tail end of the main runner is communicated with a first branch runner and a second branch runner, the pouring assembly comprises a grouting hopper and a U-shaped handle, the bottom end of the grouting hopper is fixedly communicated with a butt joint pipe, and a butt joint groove is formed in the top end of the grouting hole. The butt joint pipe is inserted into the grouting hole through cooperation with the butt joint groove, three sets of L-shaped arc-shaped clamping sleeves are fixedly arranged on the outer wall of the circumference of the butt joint pipe in an annular array mode, the three sets of L-shaped arc-shaped clamping sleeves are clamped to the top end of the grouting hole in a sleeving mode, and two sets of connecting bases are fixedly arranged at the position, close to the upper portion, of the outer wall of the grouting hopper in a bilateral symmetry mode. The two ends of the U-shaped carrying handle are rotationally connected to the two sets of connecting bases respectively.
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Description

A mold flow channel structure for a motorcycle water pump cover Technical Field

[0001] This utility model relates to the technical field of die-casting molds, and in particular to a mold flow channel structure for a motorcycle water pump cover. Background Technology

[0002] The motorcycle water pump is an important component of the motorcycle water cooling system, and the motorcycle water pump cover, as an important component of the motorcycle water pump, is key to ensuring the sealing of the water cooling system due to its high machining precision.

[0003] The production of motorcycle water pump covers by die casting is a highly efficient production process. In the production of motorcycle water pump covers by die casting, it is necessary to design a corresponding die casting mold. In the design of the die casting mold, the design of the runner and slag trap, as well as the distribution design of the cavity, are particularly important. It is necessary to consider the uniformity of molten metal injection, venting and cooling in the cavity, as well as the efficiency of demolding and removing slag traps from the runner, and the overall production efficiency.

[0004] In the prior art, the utility model patent with patent publication number CN217617657U discloses a mold flow channel structure for a motorcycle water pump cover. This structure improves the mold flow channel structure of the motorcycle water pump cover, which can ensure the uniformity of molten metal injection, exhaust and cooling in the cavity, as well as the efficiency of demolding and removal of flow channel slag, and the overall production efficiency.

[0005] The mold flow channel structure of the motorcycle water pump cover in the above patent has the following drawbacks when in use: when pouring molten metal into the main channel through the grouting hole, the molten metal is prone to spillage when pouring because the inlet of the grouting hole is cylindrical, resulting in waste of molten metal and insufficient practicality. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this utility model provides a mold flow channel structure for a motorcycle water pump cover that can prevent molten metal from spilling, avoid waste of molten metal, and improve practicality.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a mold flow channel structure for a motorcycle water pump cover, including a grouting hole and a casting assembly. The bottom of the grouting hole is connected to a main flow channel, and the end of the main flow channel is connected to a first branch flow channel and a second branch flow channel. The casting assembly includes a grouting hopper and a U-shaped handle. The bottom end of the grouting hopper is fixedly connected to a connecting pipe. The top end of the grouting hole is provided with a docking groove. The connecting pipe is inserted into the grouting hole by cooperating with the docking groove. Three sets of L-shaped arc-shaped sleeves are fixedly arranged in a ring array on the outer circumference of the connecting pipe. The three sets of L-shaped arc-shaped sleeves are all fitted onto the top end of the grouting hole. Two sets of connecting seats are symmetrically fixed on the upper part of the outer wall of the grouting hopper. The two ends of the U-shaped handle are respectively rotatably connected to the two sets of connecting seats.

[0009] Preferably, a handle sleeve is fixedly fitted in the middle of the outer wall of the U-shaped handle, and an arc-shaped concave surface is opened at the bottom end of the handle sleeve.

[0010] Preferably, L-shaped support plates are fixedly connected to both the front and rear sides of the outer wall of the grouting hopper, and the two sets of L-shaped support plates are symmetrically distributed.

[0011] Preferably, the inner edge of the bottom end of each of the three sets of L-shaped arc-shaped sleeves is provided with an inner chamfer.

[0012] Preferably, the outer edge of the bottom end of the connecting pipe is provided with an outer chamfer.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When using it, when pouring molten metal into the main channel through the grouting hole, first hold the U-shaped handle and insert the connecting pipe into the docking groove to align the connecting pipe with the grouting hole. The L-shaped arc-shaped clamp is then secured to the top of the grouting hole. The L-shaped arc-shaped clamp's engagement with the grouting hole ensures the grouting bucket is firmly placed. Then, turn the U-shaped handle to one side of the grouting bucket, and molten metal can be poured into the grouting hole through the grouting bucket. The grouting bucket enlarges the diameter of the pouring opening, preventing spillage of molten metal during pouring and avoiding waste. After pouring and cooling, turn the U-shaped handle to the top of the grouting bucket and lift it away, improving practicality. Attached Figure Description

[0014] Figure 1 is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 is an isometric structural diagram of the present invention after the grouting bucket has been removed.

[0016] Figure 3 is an isometric structural diagram of the casting component in this utility model;

[0017] Figure 4 is a bottom-view axonometric structural schematic diagram of the present invention as shown in Figure 3;

[0018] The following markings are used in the attached diagram: 1. Grouting hole; 2. Main channel; 3. First branch channel; 4. Second branch channel; 5. Grouting hopper; 6. Connecting pipe; 7. Connecting groove; 8. L-shaped arc-shaped sleeve; 9. U-shaped handle; 10. Connecting seat; 11. Handle cover; 12. Arc-shaped concave surface; 13. L-shaped support plate; 14. Inner chamfer; 15. Outer chamfer. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope. Examples

[0020] Please refer to Figures 1-4. The present invention discloses a mold flow channel structure for a motorcycle water pump cover, including a grouting hole 1, a grouting hopper 5, and a U-shaped handle 9. The bottom of the grouting hole 1 is connected to a main flow channel 2, and the end of the main flow channel 2 is connected to a first branch channel 3 and a second branch channel 4. A connecting pipe 6 is fixedly connected to the bottom of the grouting hopper 5. A connecting groove 7 is provided at the top of the grouting hole 1. The connecting pipe 6 is inserted into the grouting hole 1 through the mating groove 7. Three sets of L-shaped arc-shaped sleeves 8 are fixedly arranged in a ring array on the outer circumference of the connecting pipe 6, and all three sets of L-shaped arc-shaped sleeves 8 are fitted onto the top of the grouting hole 1. Two sets of connecting seats 10 are symmetrically fixed at the upper part of the outer wall of the grouting hopper 5. The two ends of the U-shaped handle 9 are rotatably connected to the two sets of connecting seats 10 respectively. 0. When using the grouting hopper 5, first, by holding the U-shaped handle 9, insert the connecting pipe 6 into the docking groove 7 to align the connecting pipe 6 with the grouting hole 1. The L-shaped arc-shaped clamp 8 is then secured to the top of the grouting hole 1. This secure connection ensures the grouting hopper 5 is firmly placed. Next, rotate the U-shaped handle 9 to one side of the grouting hopper 5, allowing the molten metal to be poured into the grouting hole 1. The grouting hopper 5 enlarges the diameter of the pouring opening, preventing spillage and waste during pouring. After pouring and cooling, rotate the U-shaped handle 9 to the top of the grouting hopper 5 and lift it away, improving practicality.

[0021] The U-shaped handle 9 has a handle sleeve 11 fixedly fitted in the middle of its outer wall, and the bottom end of the handle sleeve 11 has an arc-shaped concave surface 12. When using it, when picking up or putting down the grouting bucket 5, the hand can hold the handle sleeve 11 and the fingers are in the arc-shaped concave surface 12, which can effectively prevent the hand from slipping and falling out.

[0022] L-shaped support plates 13 are fixedly connected to both the front and rear sides of the outer wall of the grouting hopper 5, and the two sets of L-shaped support plates 13 are symmetrically distributed. By setting the L-shaped support plates 13, when the U-shaped handle 9 is turned to the side of the grouting hopper 5, the U-shaped handle 9 can be placed on the L-shaped support plates 13, which makes it convenient to place the U-shaped handle 9.

[0023] The inner edge of the bottom of each of the three sets of L-shaped arc-shaped sleeves 8 is provided with an inner chamfer 14; by providing the inner chamfer 14, the L-shaped arc-shaped sleeve 8 can be more easily fitted onto the top of the grouting hole 1.

[0024] The bottom outer edge of the connecting pipe 6 is provided with an outer chamfer 15; by providing the outer chamfer 15, the connecting pipe 6 can be more easily inserted into the mating groove 7.

[0025] This utility model discloses a mold flow channel structure for a motorcycle water pump cover. Its working principle is as follows: When pouring molten metal into the main flow channel 2 through the injection hole 1, first, by holding the U-shaped handle 9, insert the connecting pipe 6 into the docking groove 7, aligning the connecting pipe 6 with the injection hole 1. The L-shaped arc-shaped retaining sleeve 8 is then secured to the top of the injection hole 1. The engagement of the L-shaped arc-shaped retaining sleeve 8 with the injection hole 1 ensures the injection hopper 5 is securely placed. Then, the U-shaped handle 9 is rotated to one side of the injection hopper 5 and placed on the L-shaped support plate 13. Molten metal can then be poured into the injection hole 1 through the injection hopper 5. After pouring... After cooling, rotate the U-shaped handle 9 to the top of the grouting hopper 5, lift the grouting hopper 5 using the U-shaped handle 9, so that the L-shaped arc-shaped sleeve 8 disengages from the top of the grouting hole 1, and the grouting hopper 5 can be removed. It should be noted that the grouting hole 1, main channel 2, first branch channel 3 and second branch channel 4 in this utility model are all referenced from the mold flow channel structure of a motorcycle water pump cover with patent publication number CN217617657U, which belongs to the disclosed prior art. The other specific structures and working principles have been described in detail in the disclosed patent, so they will not be elaborated here.

[0026] The present invention relates to a mold flow channel structure for a motorcycle water pump cover. Its installation method, connection method, or setting method are all common mechanical methods, and any method that can achieve its beneficial effect can be implemented.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A mold flow channel structure for a motorcycle water pump cover, comprising an injection hole (1), wherein a main flow channel (2) is connected to the bottom of the injection hole (1), and a first branch flow channel (3) and a second branch flow channel (4) are connected to the end of the main flow channel (2), characterized in that, It also includes a casting assembly; the casting assembly includes a grouting hopper (5) and a U-shaped handle (9). The bottom end of the grouting hopper (5) is fixedly connected to a connecting pipe (6). The top end of the grouting hole (1) is provided with a docking groove (7). The connecting pipe (6) is inserted into the grouting hole (1) by cooperating with the docking groove (7). Three sets of L-shaped arc-shaped sleeves (8) are fixedly arranged in a ring array on the outer circumference of the connecting pipe (6). The three sets of L-shaped arc-shaped sleeves (8) are all fitted into the top end of the grouting hole (1). Two sets of connecting seats (10) are fixedly arranged symmetrically on the upper part of the outer wall of the grouting hopper (5). The two ends of the U-shaped handle (9) are respectively rotatably connected to the two sets of connecting seats (10).

2. The mold flow channel structure for a motorcycle water pump cover as described in claim 1, characterized in that, The U-shaped handle (9) has a handle sleeve (11) fixedly fitted in the middle of its outer wall, and the bottom end of the handle sleeve (11) has an arc-shaped concave surface (12).

3. The mold flow channel structure for a motorcycle water pump cover as described in claim 2, characterized in that, The grouting bucket (5) has L-shaped support plates (13) fixedly connected to both the front and rear sides of its outer wall, and the two sets of L-shaped support plates (13) are symmetrically distributed.

4. The mold flow channel structure for a motorcycle water pump cover as described in claim 3, characterized in that, The inner edge of the bottom of each of the three sets of L-shaped arc sleeves (8) is provided with an inner chamfer (14).

5. The mold flow channel structure for a motorcycle water pump cover as described in claim 4, characterized in that, The bottom edge of the connecting pipe (6) is provided with an outer chamfer (15).

Citation Information

Patent Citations

  • Mold runner structure of motorcycle water pump cover

    CN217617657U