Sealing structure of valve element and cooling valve

Abstract

The utility model provides a sealing structure of a valve element and a cooling valve, and the valve element assembly comprises a valve plate group which is rotatably installed in the cooling valve; the sealing plate is installed between the valve plate set and the connecting block, and the top of the sealing plate is attached to the valve plate set; the cooling valve comprises a connecting block and a sealing plate which is installed at the bottom of the cooling valve and used for connecting the cooling valve with a mold, the sealing plate is clamped to the connecting block and is made of a ceramic material, and it is ensured that a high-precision sealing face is formed between the valve plate set and the connecting block by means of ultrahigh smoothness and excellent abrasion resistance of the ceramic surface. And compared with a traditional sealing material, the sealing reliability of the cooling valve is greatly improved.

Description

Technical Field

[0001] This application relates to the field of mold cooling valve technology, and in particular to a valve core sealing structure and a cooling valve. Background Technology

[0002] In mold cooling systems, the cooling valve, as a core component controlling coolant flow, directly impacts the mold's cooling efficiency and lifespan due to its sealing performance and ease of maintenance. Existing cooling valves suffer from significant design flaws in their sealing structures: traditional sealing components are often made of metal or ordinary engineering plastics, whose surface finish is insufficient for high-precision sealing. Over time, wear can lead to incomplete sealing, resulting in water and air leaks. The sealing structure between the valve plate assembly and the connecting block, in particular, lacks reliable material support and structural design, becoming a major potential source of sealing failure. Furthermore, disassembling the valve core assembly of existing cooling valves often requires complete disassembly of the outer casing, a cumbersome process that can damage other components, leading to high maintenance costs and long downtime, making it unsuitable for the efficient maintenance demands of industrial production. Utility Model Content

[0003] The purpose of this invention is to solve the above-mentioned problems by providing a sealing structure for a valve core and a cooling valve.

[0004] The technical solution of this application is implemented as follows:

[0005] In a first aspect, this application provides a sealing structure for a valve core, including a valve core assembly;

[0006] The valve core assembly includes:

[0007] Valve plate assembly, rotatably mounted in the cooling valve;

[0008] A sealing plate is installed between the valve plate assembly and the connecting block, with the top of the sealing plate fitting against the valve plate assembly;

[0009] The cooling valve includes a connecting block installed at the bottom of the cooling valve for connecting the cooling valve to the mold, and the sealing plate is snapped onto the connecting block.

[0010] The advantages or beneficial effects of the above technical solutions include at least the following:

[0011] Secondly, this application also provides a cooling valve, the cooling valve comprising:

[0012] The valve core assembly adopts the valve core assembly as described above, the valve core assembly further includes a center rod, the valve plate assembly is mounted on the center rod, and the center rod passes through the middle of the valve plate assembly;

[0013] A switching mechanism is provided to rotate the valve plate assembly and change the rotation angle of the valve plate assembly to switch the working mode of the cooling valve.

[0014] The outer casing, the switching mechanism and the valve core assembly are all installed inside the outer casing, the outer casing includes a top shell, a middle shell and a bottom shell, wherein the bottom shell is detachably connected to the middle shell, the top shell is detachably connected to the middle shell, and the valve plate assembly is located inside the middle shell;

[0015] The connecting block is detachably connected to the middle shell by bolts, and the connecting end of the connecting block protrudes through the bottom shell;

[0016] The top end of the central rod passes upward through the switching mechanism and out of the top shell, while the bottom end passes through the middle of the connecting block and out of the bottom shell.

[0017] The cooling valve further includes an adjustment handle, which is mounted on the top of the top housing and is detachably connected to the top of the center rod.

[0018] The advantages or beneficial effects of the above technical solutions include at least the following:

[0019] 1. The sealing plate is made of ceramic material. The high smoothness and excellent wear resistance of the ceramic surface ensure that a high-precision sealing surface is formed between the valve plate assembly and the connecting block. This eliminates water and air leakage from the material itself and greatly improves the sealing reliability of the cooling valve compared with traditional sealing materials.

[0020] 2. A sealing gasket is added between the sealing plate and the connecting block to form a dual sealing structure of "precise fit of ceramic sealing plate + elastic compensation of sealing gasket". It can achieve the initial sealing effect through the rigid sealing of ceramic material, and can also adapt to the small displacement during long-term use by the flexible deformation of sealing gasket, further enhancing the stability of the sealing system.

[0021] 3. The valve core assembly can be independently disassembled through the detachable bolted connection between the bottom shell and the middle shell, and between the middle shell and the top shell, as well as the independent bolted fixing structure between the connecting block and the middle shell. During maintenance, there is no need to disassemble the connection between the middle shell and the top shell; simply flip the valve body and remove the bottom bolts to separate the valve core assembly. This greatly simplifies the maintenance process, shortens downtime for maintenance, and improves industrial production efficiency.

[0022] 4. The switching mechanism adopts a worm gear transmission structure. The worm gear is coaxial with the central rod and engages with the valve plate assembly through a slot, ensuring that the worm gear can stably drive the valve plate assembly to rotate precisely when the worm is rotated, thus achieving reliable switching of the cooling valve's operating mode. This transmission structure utilizes the self-locking characteristics of the worm gear to effectively prevent the valve plate assembly from shifting due to vibration or other factors during operation, ensuring the stability of the cooling valve's operating state.

[0023] 5. An anti-loosening nut is installed on the part of the center rod that protrudes from the top shell. The fit between the nut and the top of the top shell prevents the center rod from coming off during long-term reciprocating motion. The adjustment handle and the hexagonal positioning block and positioning groove on the top of the center rod cooperate to ensure accurate power transmission during operation, prevent slippage, and improve the reliability and ease of operation of the overall mechanical structure. Attached Figure Description

[0024] The accompanying drawings illustrate exemplary embodiments of the present application and, together with the description thereof, serve to explain the principles of the present application. These drawings are included to provide a further understanding of the present application and are incorporated in and constitute a part of this specification.

[0025] Figure 1 This diagram shows the structure of the cooling valve after installation according to an embodiment of the present invention.

[0026] Figure 2 The diagram illustrates the disassembly steps of the valve core assembly according to an embodiment of the present invention. Figure 1 ;

[0027] Figure 3 The diagram illustrates the disassembly steps of the valve core assembly according to an embodiment of the present invention. Figure 2 ;

[0028] Figure 4 The diagram illustrates the disassembly steps of the valve core assembly according to an embodiment of the present invention. Figure 3 ;

[0029] Figure 5 The diagram illustrates the disassembly steps of the valve core assembly according to an embodiment of the present invention. Figure 4 ;

[0030] Figure 6 The diagram illustrates the disassembly steps of the valve core assembly according to an embodiment of the present invention. Figure 5 ;

[0031] Figure 7 The diagram illustrates the disassembly steps of the valve core assembly according to an embodiment of the present invention. Figure 6 ;

[0032] Figure 8 A schematic diagram of the valve core assembly according to an embodiment of the present invention is shown;

[0033] Figure 9 A schematic diagram of the disassembly of the top shell and the middle shell according to an embodiment of the present invention is shown;

[0034] Figure 10 A schematic diagram of the switching mechanism according to an embodiment of the present invention is shown. Figure 1 ;

[0035] Figure 11 A schematic diagram of the switching mechanism according to an embodiment of the present invention is shown. Figure 2 ;

[0036] Figure 12 A schematic diagram showing the position of the anti-loosening nut according to an embodiment of the present invention is shown;

[0037] Figure 13 This diagram illustrates the connection relationship between the bracket, the middle shell, and the connecting block according to an embodiment of the present invention.

[0038] Figure 14 A schematic diagram showing the engagement of the slot and the block of the worm gear according to an embodiment of the present invention is shown;

[0039] Figure 15 The diagram shows the positions of the sealing gasket and sealing plate according to an embodiment of the present invention; reference numerals: 10, outer shell; 11, top shell; 12, middle shell; 13, bottom shell; 20, valve core assembly; 21, center rod; 211, positioning block; 212, anti-loosening nut; 22, valve plate assembly; 221, locking block; 23, sealing plate; 30, switching mechanism; 31, bracket; 32, worm gear; 321, slot; 33, worm; 34, rotating handle; 40, connecting block; 41, sealing gasket; 50, adjusting handle; 51, positioning groove; Detailed Implementation

[0040] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0041] It should be noted that, where there is no conflict, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] It should be understood that the term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this application are used only to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0043] It should be noted that the terms "one" and "more" used in this application are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0044] The names of the messages or information exchanged between multiple devices in the embodiments of this application are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0045] A sealing structure for a valve core includes a valve core assembly 20; such as Figure 15 As shown, the valve core assembly 20 includes:

[0046] Valve plate assembly 22 is rotatably mounted in the cooling valve;

[0047] The sealing plate 23 is installed between the valve plate assembly 22 and the connecting block 40. The top of the sealing plate 23 is in contact with the valve plate assembly 22. The sealing plate 23 is made of ceramic material. The smoothness of the ceramic surface can meet the predetermined requirements, so that there will be no water or air leakage between the valve plate assembly 22 and the connecting block 40, thus improving the sealing performance of the cooling valve.

[0048] The cooling valve includes a connecting block 40, which is installed at the bottom of the cooling valve to connect the cooling valve to the mold, and a sealing plate 23 is snapped onto the connecting block 40.

[0049] A sealing gasket 41 is also installed between the sealing plate 23 and the connecting block 40.

[0050] This utility model also discloses a cooling valve.

[0051] Cooling valves include:

[0052] The valve core assembly 20 is as described above. The valve core assembly 20 also includes a central rod 21. The valve plate assembly 22 is mounted on the central rod 21, and the central rod 21 passes through the middle of the valve plate assembly 22.

[0053] The switching mechanism 30 is used to rotate the valve plate assembly 22 and change the rotation angle of the valve plate assembly 22 to switch the working mode of the cooling valve.

[0054] The outer casing 10, the switching mechanism 30, and the valve core assembly 20 are all installed inside the outer casing 10. The outer casing 10 includes a top shell 11, a middle shell 12, and a bottom shell 13. The bottom shell 13 is detachably connected to the middle shell 12, and the top shell 11 is detachably connected to the middle shell 12. The valve plate assembly 22 is located inside the middle shell 12. The bottom shell 13 is detachably connected to the middle shell 12 by bolts, and the middle shell 12 is detachably connected to the top shell 11 by bolts.

[0055] The switching mechanism 30 is used to rotate the valve plate assembly 22, changing the rotation angle of the valve plate assembly 22 to switch the working mode of the cooling valve. Specifically, the switching mechanism 30 includes: a bracket 31, detachably installed in the top shell 11; a worm gear 32, rotatably installed in the bracket 31. A through hole is provided on the bracket 31 corresponding to the position of the central rod 21. The worm gear 32 is rotatably installed in the through hole. The central rod 21 passes through the through hole in the middle of the worm gear 32, so that the top end of the central rod 21 passes upward through the switching mechanism 30 and out of the top shell 11. The connecting block 40 and the bracket 31 are detachably connected to the middle shell 12 together by bolts. Figure 13 As shown;

[0056] The switching mechanism 30 further includes a worm gear 33, which is horizontally mounted in the bracket 31 and meshes with a worm wheel 32. A slot 321 is formed in the inner wall of the through hole in the middle of the worm wheel 32, and the slot 321 extends downward through the bottom of the worm wheel 32. The valve plate assembly 22 also includes a locking block 221, which can be engaged with the slot 321 from the bottom. Figure 14 As shown, this allows the worm gear 32 to drive the entire valve plate assembly 22 to rotate (e.g., Figure 10 and 11 As shown in the figure, the helical tooth grooves of the worm gear 32 and worm 33 are not drawn. The tooth grooves in the figure are only a simple illustration. The transmission relationship between the worm gear 32 and worm 33 is the prior art. Those skilled in the art can determine the transmission relationship between the worm gear 32 and worm 33 without any doubt.

[0057] Furthermore, the worm gear 32 is coaxial with the central rod 21. The worm gear 32 can be rotated by rotating the worm 33, thereby switching the working mode of the regulating valve. Based on this structure, the switching mechanism 30 also includes a rotating handle 34. One end of the worm 33 extends out of the outer side of the top shell 11 and is fixedly connected to the rotating handle 34 to facilitate the rotation of the worm 33.

[0058] Based on the above structure

[0059] The cooling valve further includes:

[0060] The connecting block 40 is installed at the bottom of the cooling valve. The connecting block 40 is detachably connected to the middle shell 12 by bolts, and the connecting end of the connecting block 40 extends out of the bottom shell 13. The bottom end of the center rod 21 passes through the middle of the connecting block 40 and extends out of the bottom shell 13.

[0061] Based on the above structure, the cooling valve further includes: an adjustment handle 50, which is installed on the top of the top shell 11 and is detachably connected to the top of the adjustment rod; specifically, the adjustment handle 50 is detachably installed on the top of the adjustment rod by bolts; at the same time, there is a hexagonal positioning block 211 on the top of the adjustment rod, and the bottom of the adjustment handle 50 has a hexagonal positioning groove 51 that matches the positioning block 211; when the adjustment handle 50 is fixedly installed on the top of the adjustment rod, the positioning block 211 is embedded in the positioning groove 51 to facilitate the rotation of the center rod 21. It should be noted that the center rod 21 does not drive the valve plate assembly 22 to rotate; the valve plate assembly 22 is rotated by the switching mechanism 30.

[0062] Furthermore, the portion of the center rod 21 that protrudes from the top shell 11 is also threaded with an anti-loosening nut 212, the bottom of which fits against the top of the top shell 11 to prevent the center rod 21 from detaching.

[0063] Based on the above structure, when staff need to disassemble valve plate assembly 22 for testing or replacement, they need to... Figures 1 to 2 As shown, the bolts on the adjusting handle 50 need to be removed to release the fixing between the adjusting handle 50 and the center rod 21. Then, remove the adjusting handle 50 and the anti-loosening nut 212 in sequence. Figure 3 As shown;

[0064] Then, rotate the cooling valve 180° and remove the bolts used to secure the bottom shell 13 and the middle shell 12, as follows: Figure 4 As shown, the bolts used to fix the connecting block 40 to the middle shell 12 are then removed, as follows: Figure 5 As shown, the connecting block 40 is then separated from the valve core assembly 20, as follows. Figure 7 As shown, the entire valve core assembly 20 can be disassembled without disassembling the middle shell 12 and the upper shell, which facilitates the cleaning, maintenance and testing of the valve core assembly 20.

[0065] In the description of this application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0066] Those skilled in the art should understand that the above embodiments are merely for illustrative purposes and are not intended to limit the scope of this application. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of this application.

Claims

1. A sealing structure for a valve core, characterized in that: Including valve core assembly (20); The valve core assembly (20) includes: Valve plate assembly (22) is rotatably mounted in the cooling valve; A sealing plate (23) is installed between the valve plate assembly (22) and the connecting block (40), with the top of the sealing plate (23) fitting against the valve plate assembly (22); The cooling valve includes a connecting block (40) installed at the bottom of the cooling valve for connecting the cooling valve to the mold, and the sealing plate (23) is snapped onto the connecting block (40).

2. The sealing structure of the valve core according to claim 1, characterized in that: A sealing gasket (41) is also installed between the sealing plate (23) and the connecting block (40).

3. A cooling valve, characterized in that... ； The cooling valve includes: The valve core assembly (20) is as described in claim 1 or 2, and the valve core assembly (20) further includes a center rod (21), and the valve plate assembly (22) is mounted on the center rod (21), with the center rod (21) passing through the middle of the valve plate assembly (22); A switching mechanism (30) is used to rotate the valve plate assembly (22) and change the rotation angle of the valve plate assembly (22) to switch the working mode of the cooling valve. The outer casing (10) is provided, and the switching mechanism (30) and the valve core assembly (20) are both installed inside the outer casing (10). The outer casing (10) includes a top shell (11), a middle shell (12) and a bottom shell (13). The bottom shell (13) is detachably connected to the middle shell (12), and the top shell (11) is detachably connected to the middle shell (12). The valve plate assembly (22) is located inside the middle shell (12). The connecting block (40) is detachably connected to the middle shell (12) by bolts, and the connecting end of the connecting block (40) extends out of the bottom shell (13); The top end of the central rod (21) passes upward through the switching mechanism (30) and out of the top shell (11), while the bottom end passes through the middle of the connecting block (40) and out of the bottom shell (13). The cooling valve further includes an adjustment handle (50) mounted on the top of the top shell (11) and detachably connected to the top of the center rod (21).

4. The cooling valve according to claim 3, characterized in that: The adjusting handle (50) is detachably mounted on the top of the center rod (21) by bolts; The top of the central rod (21) has a hexagonal positioning block (211), and the bottom of the adjusting handle (50) has a hexagonal positioning groove (51) that matches the positioning block (211). When the adjusting handle (50) is fixedly installed at the top of the center rod (21), the positioning block (211) is embedded in the positioning groove (51).

5. The cooling valve according to claim 4, characterized in that: The switching mechanism (30) includes: The bracket (31) is detachably installed in the top shell (11); A worm gear (32) is rotatably mounted in the bracket (31). The bracket (31) has a through hole at a position corresponding to the central rod (21). The worm gear (32) is rotatably mounted in the through hole. The central rod (21) passes through the through hole in the middle of the worm gear (32). The worm (33) is mounted laterally in the bracket (31) and meshes with the worm wheel (32).

6. The cooling valve according to claim 5, characterized in that: The worm gear (32) has a slot (321) on the inner wall of the through hole in the middle, and the slot (321) extends downward through the bottom of the worm gear (32). The valve plate assembly (22) also includes a locking block (221), which can be locked into the slot (321) from the bottom so that the worm gear (32) can drive the central rod (21) to rotate. The worm gear (32) is coaxial with the central rod (21).

7. The cooling valve according to claim 6, characterized in that: The switching mechanism (30) also includes a rotating handle (34), one end of the worm gear (33) extends out of the outer side of the top shell (11) and is fixedly connected to the rotating handle (34).

8. The cooling valve according to claim 7, characterized in that: The portion of the central rod (21) that extends out of the top shell (11) is also threaded with an anti-loosening nut (212), the bottom of which is in contact with the top of the top shell (11).

9. The cooling valve according to claim 8, characterized in that: The bottom shell (13) is detachably connected to the middle shell (12) by bolts; The middle shell (12) is detachably connected to the top shell (11) by bolts; The connecting block (40) and the bracket (31) are detachably connected to the middle shell (12) together by bolts.

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