A zoned heat dissipation transmission housing die-casting system

Abstract

This invention discloses a partitioned heat dissipation type transmission housing die-casting system, relating to the field of transmission housing die-casting technology. It includes a die-casting mold and a cooling channel formed inside the mold. Cooling pipes are distributed within the cooling channel, and these pipes are connected via female and male connectors. The female connector is located on the side wall of the cooling pipe, and the male connector is located at the end of the cooling pipe. This invention achieves automatic and stable connection between pipe one and pipe two within a small space through the cooperation of the male and female connectors. During disassembly, the movement of the drive block causes the locking mechanism to rotate and disengage from the locking slot, achieving rapid disassembly of both pipes. This improves the convenience of pipe maintenance while ensuring stable heat dissipation efficiency.

Description

Technical Field

[0001] This invention relates to the field of transmission housing die casting technology, specifically a zoned heat dissipation type transmission housing die casting system. Background Technology

[0002] In the die-casting process of a partitioned heat-dissipating transmission housing, precise temperature control of the mold (including the fixed mold and the moving mold) is crucial to ensuring the quality of the casting. A liquid cooling system is required to cool the mold cavity to prevent defects such as shrinkage cavities and warping caused by uneven cooling. To accommodate the complex cavity structure of the transmission housing, the heat dissipation pipes of the liquid cooling system must adopt a non-unidirectional layout (as shown in the attached diagram). Figure 1 The existing heat dissipation solutions (shown as branching or inclined cross-type designs) aim to cover all critical areas requiring temperature control; however, these solutions suffer from the following significant problems:

[0003] Heat dissipation channels directly embedded in the mold are prone to contamination, leading to decreased heat dissipation efficiency. When the heat dissipation channels are directly formed into the mold body, the cooling liquid directly contacts the inner wall of the channel and completes heat exchange. However, impurities and minerals contained in the cooling liquid (especially industrial circulating water) will gradually adhere to the inner wall of the channel during long-term flow, forming dirt or scale. Due to the corners of the branched channels, impurities and scale are more likely to accumulate in these areas, resulting in a reduction in the actual flow cross-sectional area of ​​the channel. This leads to uneven heat exchange performance of the inner wall and a sharp drop in heat dissipation capacity in local areas due to dirt obstruction, which widens the difference in cooling rate between different parts of the mold. This uneven heat dissipation will directly lead to inconsistent cooling and shrinkage of the gearbox housing casting, causing defects such as warping and cracks. At the same time, because the overall heat dissipation efficiency is lower than expected, the die casting cycle needs to be extended to ensure the casting is formed, which seriously affects the production rhythm.

[0004] Using independent delivery pipelines presents significant limitations in installation and maintenance. Adding independent cooling liquid delivery pipelines within the heat dissipation channel allows the cooling liquid to exchange heat indirectly with the mold through the pipeline, preventing impurities from directly adhering to the mold body. However, due to the complex branching arrangement of the heat dissipation channel, the corresponding pipelines also need to be designed with a multi-branch structure and precisely matched to the inner wall of the channel to ensure heat exchange efficiency. During installation, these multi-branch pipelines need to pass through the branching channels one by one and be fixed, making the operation cumbersome. When the pipelines need to be replaced due to blockage or aging, the branching structure makes pipeline disassembly difficult, and may even damage the heat dissipation channel of the mold body due to forced disassembly, leading to increased mold maintenance costs and extended downtime. Summary of the Invention

[0005] The purpose of this invention is to provide a partitioned heat dissipation type gearbox housing die-casting system to solve the problem of difficulty in matching heat dissipation efficiency and stability with pipeline maintenance convenience.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a partitioned heat dissipation type transmission housing die casting system, including a die casting mold and a cooling channel opened inside the die casting mold, wherein cooling pipes are distributed in the cooling channel, and the cooling pipes are connected by a female connector and a male connector, wherein the female connector is located on the side wall of the cooling pipe and the male connector is located at the end of the cooling pipe;

[0007] The female connector includes a connector, a clamp, and a drive block. The connector is fixedly connected to the side wall of the cooling pipeline and communicates with the cooling pipeline. The clamp is rotatably connected to the side wall of the cooling pipeline. The end of the clamp is wedge-shaped and parallel to the connector. A torsion spring is sleeved on the rotating shaft of the clamp. The drive block is located on one side of the clamp and is elastically slidably connected to the cooling pipeline.

[0008] The male connector includes a plug and a slot. The plug is disposed on the cooling pipe, and the slot is formed on the plug. The slot is parallel to the locking element. When the driving block slides along the cooling pipe toward the connector, it can push the locking element to rotate, thereby forcing the locking element to release the restriction on the slot.

[0009] The cooling channel where the female head is located is provided with a clearance groove for making way.

[0010] As a further aspect of the present invention, a sealing ring is provided inside the connector.

[0011] As a further embodiment of the present invention, the connector is internally elastically slidably connected with a connecting member, and the connecting member is glued and fixed to the sealing ring.

[0012] As a further aspect of the present invention, the inner cavity of the connector gradually expands from the end near the connector to the end away from the connector, and the plug gradually expands from the end near the connector to the end of the connector.

[0013] As a further embodiment of the present invention, the plug is elastically slidably connected to the cooling pipeline.

[0014] As a further embodiment of the present invention, a protective component is also included. The protective component includes a locking rod, a second torsion spring, and a driving component. The locking rod is rotatably connected to the locking piece. The second torsion spring is sleeved on the rotation shaft of the locking rod. The locking rod is inclined relative to the locking piece. A contact rod is fixedly connected to the end of the locking rod. The contact rod is located on one side of the driving block. When the driving block slides along the connector, it can push the contact rod, thereby driving the locking rod to rotate.

[0015] The drive assembly is used to enable the lever to rotate toward the connector when the card engages with the card slot, and to reset the lever after the card engages with the card slot.

[0016] As a further embodiment of the present invention, the driving assembly includes a positioning rod and a lever. The lever is rotatably connected to the inside of the clamp and is inclined. The end of the lever protrudes out of the clamp. A strip groove is formed inside the lever. The positioning rod is slidably connected to the clamp. The end of the positioning rod rotates and is slidably connected inside the strip groove. A torsion spring is sleeved on the rotating shaft of the lever.

[0017] A positioning block is fixedly connected to the cooling pipeline.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention enables automatic and stable docking of pipe one and pipe two within a small space through the cooperation of male and female connectors. During disassembly, the movement of the drive block causes the clamp to rotate and disengage from the slot, achieving rapid disassembly of both pipes. This improves the convenience of pipe maintenance while ensuring the stability of heat dissipation efficiency.

[0020] Both the connector and the plug are tapered. The tapered fit has a self-guiding function, which can automatically correct the position and improve the sealing performance when there is a slight coaxiality deviation between the plug and the connector. This improves the alignment efficiency and assembly efficiency when installing inclined pipes. The gradual contact of the tapered surface makes the compression of the sealing ring increase evenly, avoiding wear caused by local overpressure and extending the service life of the sealing ring. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a pipeline layout that is not unidirectional.

[0022] Figure 2 This is a schematic diagram of the structure of the clearance groove, the moving mold, and the fixed mold of the present invention;

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

[0024] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 This is a schematic diagram of the arrangement of pipe one and pipe two in this invention;

[0026] Figure 6 This is a schematic diagram showing the positional relationship between the drive block and the card, and between the card and the positioning rod of the present invention;

[0027] Figure 7 This is a schematic diagram showing the positional relationship between the positioning rod, the lever, and the strip groove of the present invention;

[0028] Figure 8 This is a schematic diagram showing the connection relationship between the plug and the second pipe of the present invention;

[0029] Figure 9 This is a schematic diagram of the movement of pipe two to pipe one according to the present invention;

[0030] Figure 10 This is a schematic diagram showing the rotation of the lever and the locking lever when the plug of the present invention pushes the lever;

[0031] Figure 11 This is a schematic diagram showing the rotation of the locking rod after it contacts the connector when the plug of the present invention pushes the locking component to rotate;

[0032] Figure 12 This is a schematic diagram showing the positional relationship between the locking rod and the connector after the locking slot and locking rod are engaged.

[0033] Figure 13 This is a schematic diagram of the movement trajectory of the ejector pin during disassembly of the present invention;

[0034] Figure 14 This is a schematic diagram showing the contact rod being rotated by the pushing end during disassembly of the present invention;

[0035] Figure 15 This is a schematic diagram showing the positional relationship between the positioning groove and the fixed mold in this invention;

[0036] Figure 16 This is a schematic diagram showing the connection relationship between the positioning block of the present invention and pipe one and pipe two.

[0037] In the attached diagram, the components represented by each number are as follows:

[0038] 1. Fixed mold; 2. Moving mold; 3. Pipe 1; 4. Pipe 2; 5. Slide 1; 501. Relief groove; 6. Slide 2; 7. Connector; 8. Plug; 801. Third spring; 9. Slot; 10. Clip; 11. Torsion spring 1; 12. Drive block; 1201. First spring; 1202. Push end; 13. Sealing ring; 14. Connector; 1401. Second spring; 15. Clip rod; 16. Torsion spring 2; 17. Contact rod; 18. Positioning rod; 19. Toggle rod; 20. Strip groove; 21. Torsion spring 3; 22. Positioning block; 23. Positioning groove; 24. Cooling pipeline. Detailed Implementation

[0039] Please see Figures 1-16This invention provides a technical solution: a partitioned heat dissipation type transmission housing die casting system, including a die casting mold and a cooling channel formed inside the die casting mold. The die casting mold can be composed of a fixed mold 1 and a moving mold 2 as shown in the figure (which is common knowledge to those skilled in the art and will not be described in detail here). The cooling channel can be formed on either the fixed mold 1 or the moving mold 2, or on both simultaneously (shown in the figure as formed on the fixed mold 1). Cooling pipes 24 are distributed in the cooling channel. The cooling pipes 24 can be composed of a slide groove 5 as shown in the figure and at least one slide groove 6 in actual use (shown in the figure as a slide groove 6).

[0040] The cooling pipe 24 is connected through a female connector and a male connector. For ease of understanding, the cooling pipe 24 is distinguished as pipe 3 and pipe 4 as shown in the figure, and the connection relationship between each structure in the female connector and the male connector and pipe 3 and pipe 4 is introduced.

[0041] The female connector includes a pipe 3, a connector 7, a clamp 10, and a drive block 12. The connector 7 is fixedly connected to the side wall of the pipe 3 and communicates with the pipe 3. The connector 7 is inclined. The clamp 10 is rotatably connected to the side wall of the pipe 3. The end of the clamp 10 is wedge-shaped. The clamp 10 is inclined relative to the pipe 3. A torsion spring 11 is sleeved on the rotating shaft of the clamp 10. The drive block 12 is located on one side of the clamp 10 and is elastically slidably connected to the pipe 3.

[0042] The male connector includes a second pipe 4, a plug 8, and a slot 9. The plug 8 is located at the end of the second pipe 4, and the slot 9 is opened on the plug 8. The second pipe 4 is parallel to the locking member 10. When the driving block 12 slides outward along the first pipe 3, it can push the locking member 10 to rotate, thereby forcing the locking member 10 to release the restriction on the slot 9.

[0043] The slide 5 is provided with a clearance groove 501 for clearance.

[0044] like Figures 1-4 , Figure 9 , Figure 12-14 As shown:

[0045] Figure 3 The image shows the connection between pipe 3 and a single pipe 4. In actual use, there can be multiple pipes 4, and their tilt angle can be adjusted according to requirements (e.g., ...). Figure 5 (as shown)

[0046] Slide 5 and slide 6 are opened according to a preset trajectory to provide precise guidance for pipe installation, reduce the problem of positioning difficulties when installing inclined pipes, and the clearance fit ensures that pipe 3 and pipe 4 can slide smoothly, while limiting the radial sway of pipe 3 and pipe 4, and avoiding direct collision between plug 8 and connector 7 during connection.

[0047] Installation work:

[0048] First, insert pipe 3 into the slide groove 5. The connector 7 slides along the relief groove 501. After pipe 3 stops being inserted, the inclined connector 7 is collinear with the axis of pipe 4. Torsion spring 11 is used to keep the clamp 10 horizontal with slide groove 6.

[0049] Then, pipe 24 is inserted into the slide groove 26 and pushed. When the wedge-shaped right end of the locking piece 10 contacts the left side wall of the plug 8, it will force the locking piece 10 to rotate around the rotating axis and compress the torsion spring 11, and force the right end of the locking piece 10 to make way for the plug 8. As pipe 24 continues to be inserted, the locking piece 10 enters the slot 9 under the action of the torsion spring 11 to lock, thereby locking pipe 13 and pipe 24 together. At this time, the plug 8 will be inserted into the connector 7 to connect pipe 13 and pipe 24. The sealing ring 13 seals the plug 8 and the connector 7.

[0050] Disassembly work:

[0051] By using a pin that matches the inner diameter of pipe 3 ( Figure 13 The drive block 12 (represented by A1) is inserted into the interior of pipe 3 and pushes it outward along pipe 3. At this time, the first spring 1201 is compressed. Figure 14 As shown, when the drive block 12 slides outward, the push end 1202, which is integrally formed at its end, will contact the left end of the card 10 and push the card 10 to rotate around the rotating shaft so that the right end of the card 10 slides out from inside the card slot 9, thereby releasing the lock between the card 10 and the card slot 9. Then, the pipe 2 4 and the ejector pin A1 can be pulled outward to complete the disassembly.

[0052] In this invention, when pipe 2 4 is inserted into pipe 1 3, it can automatically lock pipe 1 3 and pipe 2 4 together, and achieve connection through the cooperation of connector 7 and plug 8, completing automatic and stable docking in a small space. The clamp 10 is set parallel to pipe 2 4, and with the pre-tightening force of torsion spring 1 11, it adapts to the force direction of the tilt angle of pipe 1 3 and pipe 2 4. When locked, the clamp 10 fits tightly with the slot 9 to prevent the tilted pipe from loosening due to axial force. When disassembling, the movement of drive block 12 causes the clamp 10 to rotate and disengage from the slot 9, realizing quick disassembly of pipe 1 3 and pipe 2 4, improving maintenance convenience, and improving the convenience of pipe maintenance while ensuring heat dissipation efficiency and stability.

[0053] The connector 7 has a sliding connection to the connector 14, and a second spring 1401 is fixedly connected between the connector 14 and the outer wall of the connector 7. The connector 14 is glued to the sealing ring 13.

[0054] like Figure 4 , Figure 12-14 As shown:

[0055] When plug 8 is inserted, it first contacts connector 14 and pushes it to the left to compress the second spring 1401 until plug 8 is fully inserted. At this time, the reaction force of the second spring 1401 makes the sealing ring 13 fit tightly against plug 8. The elastic sliding of connector 14 can compensate for the insertion depth deviation of plug 8 (such as ±0.3mm), avoid uneven compression of sealing ring 13 due to axial misalignment during inclined pipe installation, improve the sealing performance after insertion, so that pipe 1 3 and pipe 2 4 will not leak when connected.

[0056] The connector 14 can be made of copper. Copper has a high thermal conductivity, which can transfer the heat of the pipe 3 to the vicinity of the sealing ring 13, preventing the sealing ring 13 from hardening due to low temperature coolant and extending its service life.

[0057] The inner cavity of connector 14 gradually expands from the end near pipe 3 to the end away from pipe 3, and plug 8 gradually expands from the end near connector 7 to the end of pipe 4.

[0058] like Figure 4 , Figure 12-14 As shown:

[0059] The inner cavity of connector 14 is conical (the diameter of the left end is less than the diameter of the right end), and the outer wall of plug 8 is a matching conical (the diameter of the left end is less than the diameter of the right end). When plug 8 is inserted, the conical surface gradually fits into the conical inner cavity of connector 14, pushing connector 14 to slide to the left and compressing the spring until the sealing ring 13 is completely pressed.

[0060] Furthermore, the tapered fit has a self-guiding function, which can automatically correct the position when there is a slight coaxiality deviation (such as ±1°) between the plug 8 and the connector 7, thereby improving the alignment efficiency and assembly efficiency when installing inclined pipes. The gradual contact of the tapered surface makes the compression of the sealing ring 13 increase uniformly, avoiding wear caused by local overpressure and extending the service life of the sealing ring 13.

[0061] Furthermore, the tapered connector 14 and plug 8 can also block the flow of internal coolant when they are disconnected (i.e. when the coolant supply stops), so that the coolant will not flow out when they are disconnected.

[0062] The plug 8 is slidably connected to the pipe 2 4, and a third spring 801 is fixedly connected between the plug 8 and the inner wall of the pipe 2 4.

[0063] like Figure 8 As shown:

[0064] Insert work:

[0065] When pipe 24 is not inserted into slide groove 26, plug 8 is at the innermost position. During insertion, pipe 24 is first inserted into slide groove 26 to its maximum extent, but at this time plug 8 is at the innermost position and will not contact connector 7 or sealing ring 13. At this time, the ejector pin ( Figure 13 (A1) or other rods push the plug 8 toward the connector 14 and the sealing ring 13, causing the plug 8 to slide along the pipe 2 4 and compress the third spring 801. Then it is inserted into the interior of the connector 14 and contacts the inclined surface of the right end of the clip 10 when the plug 8 is pushed further. When the right end of the clip 10 enters the slot 9, the clip 10 is reset to be parallel to the pipe 2 4 under the action of the torsion spring 11, thus achieving locking (at this time, when the push on the plug 8 stops, even if the plug 8 moves slightly to the right under the elastic action of the third spring 801, it will directly contact the clip 10 after the movement, without affecting the locking of the two and the contact between the sealing ring 13 and the plug 8), while the third spring 801 remains in a compressed state.

[0066] Disassembly work:

[0067] Push the drive block 12 to slide outward and make the push end 1202 contact the left end of the card 10, thereby pushing the card 10 to rotate and thus releasing the lock. At this time, the third spring 801 drives the plug 8 to actively disengage from the sealing ring 13.

[0068] When the lock is released, the process of the plug 8 sliding to the right can accommodate minor installation misalignments, such as when there is a deviation between the axis of the plug 8 and the connector 7 or between the axis of pipe 1 3 and pipe 2 4. The active disengagement of the plug 8 relative to the sealing ring 13 can make the plug 8 and the connector 7 two independent units. This makes it impossible to consider the misalignment between the connector 7 and the plug 8 or between pipe 1 3 and pipe 2 4 when pipe 2 4 is pulled out. Therefore, when pipe 2 4 is pulled out, it is only necessary to overcome the friction between pipe 2 4 itself and the slide groove 2 6. The resistance is significantly reduced and the disassembly is smoother.

[0069] It also includes a protective component, which includes a locking rod 15, a torsion spring 16, and a drive component. The locking rod 15 is rotatably connected to the locking piece 10, and the torsion spring 16 is sleeved on the rotating shaft of the locking rod 15. The locking rod 15 is inclined relative to the locking piece 10. A contact rod 17 is fixedly connected to the end of the locking rod 15. The contact rod 17 is located on one side of the drive block 12. When the drive block 12 slides outward along the pipe 3, it can push the contact rod 17, thereby driving the locking rod 15 to rotate.

[0070] The drive assembly is used to enable the lever 15 to rotate in the direction of pipe 3 when the lever 10 engages with the slot 9, and to reset the lever 15 after the lever 10 engages with the slot 9.

[0071] The drive assembly includes a positioning rod 18 and a lever 19. The lever 19 is rotatably connected to the inside of the clamp 10 and is inclined. The end of the lever 19 protrudes out of the clamp 10. A strip groove 20 is provided inside the lever 19. The positioning rod 18 is slidably connected to the clamp 10. The end of the positioning rod 18 rotates and is slidably connected inside the strip groove 20. A torsion spring 21 is sleeved on the rotating shaft of the lever 19.

[0072] like Figures 9-14 As shown:

[0073] The right end of lever 19 protrudes beyond the right end of clamp 10. When clamp 10 is parallel to plug 8 and pipe 2 4, plug 8 will first contact lever 19 during its movement towards pipe 1 3, pushing lever 19 to rotate to the left and compressing torsion spring 3 21. During the leftward rotation of lever 19, it pushes positioning rod 18 to slide to the left through slot 20, and pushes clamp 15 to rotate to the left (e.g., Figure 10 As shown, rotate to the left and compress the torsion spring 16, because the contact rod 17 is located above and below the positioning rod 18 (as shown). Figure 6 and Figure 7 As shown), the positioning rod 18 will not obstruct the rotation of the contact rod 17;

[0074] Before the locking lever 15 rotates, its end tilts to the right and is a small distance from the connector 7. As the plug 8 continues to move, it contacts the right end of the locking piece 10 and pushes the locking piece 10 to rotate around the axis of rotation. During the rotation of the locking piece 10, the locking lever 15 contacts the connector 7 and continues to rotate around the axis of rotation (e.g., ...). Figure 11 As shown), then the card slot 9 and the card piece 10 lock together (as shown). Figure 12 (as shown)

[0075] After the slot 9 and the clip 10 are locked, the end of the clip rod 15 is tilted towards the pipe 4, while the positioning rod 18 restricts the rightward rotation of the clip rod 15. It can limit the rotation of the clip 10 by the small distance between the clip rod 15 and the connector 7, so as to ensure that the clip 10 does not rotate accidentally (such as vibration or other non-human factors) when it is not actively disassembled by non-staff members, thereby ensuring the stability of the locking assembly when locking and ensuring the stability of the gearbox housing during the molding process.

[0076] During disassembly, such as Figure 14 As shown, the push end 1202 first pushes the contact rod 17 to make the locking rod 15 rotate to the right around the rotation axis. Then the push end 1202 contacts the locking piece 10 and pushes the locking piece 10 to rotate around the rotation axis. During this process, the locking rod 15 will contact the connector 7 and continue to rotate to the left, so that the locking between the locking groove 9 and the locking piece 10 can be released.

[0077] Positioning blocks 22 are fixedly connected to both pipe 3 and pipe 4, and positioning grooves 23 are respectively opened inside slide 5 and slide 6.

[0078] like Figures 15-16 As shown:

[0079] The cooperation between the positioning block 22 and the positioning groove 23 enables the axial positioning of the pipeline, reducing the risk of sealing failure or unstable locking caused by excessive error in the insertion depth of the plug 8 and the connector 7.

Claims

1. A partitioned heat dissipation type transmission housing die-casting system, comprising a die-casting mold and a cooling channel formed inside the die-casting mold, wherein cooling pipes (24) are distributed within the cooling channel, characterized in that, The cooling pipe (24) is connected to the male connector via a female connector. The female connector is located on the side wall of the cooling pipe (24), and the male connector is located at the end of the cooling pipe (24). The female head includes a connector (7), a clamp (10), and a drive block (12). The connector (7) is fixedly connected to the side wall of the cooling pipe (24) and communicates with the cooling pipe (24). The clamp (10) is rotatably connected to the side wall of the cooling pipe (24). The end of the clamp (10) is wedge-shaped. The clamp (10) is parallel to the connector (7). A torsion spring (11) is sleeved on the rotating shaft of the clamp (10). The drive block (12) is located on one side of the clamp (10) and is elastically slidably connected to the cooling pipe (24). The male connector includes a plug (8) and a slot (9). The plug (8) is disposed on the cooling pipe (24), and the slot (9) is opened on the plug (8). The slot (9) is parallel to the card (10). When the driving block (12) slides along the cooling pipe (24) toward the connector (7), it can push the card (10) to rotate, so as to force the card (10) to release the restriction on the slot (9). The cooling channel where the female head is located is provided with a clearance groove (501) for clearance. It also includes a protective component, which includes a locking rod (15), a second torsion spring (16), and a drive component. The locking rod (15) is rotatably connected to the locking piece (10), and the second torsion spring (16) is sleeved on the rotating shaft of the locking rod (15). The locking rod (15) is inclined relative to the locking piece (10). A contact rod (17) is fixedly connected to the end of the locking rod (15). The contact rod (17) is located on one side of the drive block (12). When the drive block (12) slides along the connector (7), it can push the contact rod (17), thereby driving the locking rod (15) to rotate. The drive assembly is used to enable the lever (15) to rotate toward the connector (7) when the card (10) engages with the card slot (9), and to reset the lever (15) after the card (10) engages with the card slot (9). The drive assembly includes a positioning rod (18) and a lever (19). The lever (19) is rotatably connected to the inside of the clamp (10) and is inclined. The end of the lever (19) protrudes out of the clamp (10). A strip groove (20) is provided inside the lever (19). The positioning rod (18) is slidably connected to the clamp (10). The end of the positioning rod (18) rotates and is slidably connected inside the strip groove (20). A torsion spring (21) is sleeved on the rotating shaft of the lever (19).

2. The partitioned heat dissipation type transmission housing die-casting system according to claim 1, characterized in that: The connector (7) is provided with a sealing ring (13).

3. The partitioned heat dissipation type transmission housing die-casting system according to claim 2, characterized in that: The connector (7) has a connector (14) that is elastically slidably connected inside, and the connector (14) is glued and fixed to the sealing ring (13).

4. The partitioned heat dissipation type transmission housing die-casting system according to claim 3, characterized in that: The inner cavity of the connector (14) gradually expands from the end near the connector (7) to the end away from the connector (7), and the plug (8) gradually expands from the end near the connector (7) to the end of the connector (7).

5. The partitioned heat dissipation type transmission housing die-casting system according to claim 4, characterized in that: The plug (8) is elastically slidably connected to the cooling pipe (24).

6. The partitioned heat dissipation type transmission housing die-casting system according to claim 1, characterized in that: A positioning block (22) is fixedly connected to the cooling pipeline (24).

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