A quick connector for cooling water circuit of injection mold

By using the design of elastic protrusions and annular grooves to engage with the rubber sealing ring, the problems of cumbersome connection and leakage in traditional mold cooling water circuits are solved, achieving fast and reliable water circuit connection and improving production efficiency and product quality.

CN224545143UActive Publication Date: 2026-07-24DONGGUAN YIKE PRECISION MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN YIKE PRECISION MFG CO LTD
Filing Date
2025-09-03
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Traditional mold cooling water circuit connection methods are cumbersome to operate, and the reduced sealing performance leads to cooling water leakage, affecting production efficiency and product quality.

Method used

It employs an elastic protrusion and annular groove for locking and fixing, combined with a rubber sealing ring and flange structure, to achieve quick connection and tight sealing, while external threads and annular water-stop disc enhance stability.

Benefits of technology

It simplifies the installation process of the mold cooling water circuit, improves the speed and sealing of the connection, prevents cooling water leakage, and ensures the stable operation of the cooling system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to quick -operation joint technical field, concretely is a kind of injection mold cooling waterway quick -operation joint, including connector body and plug connector, the connector body is hollow tubular, the inner wall of one end of connector body is provided with elastic protrusion, the elastic protrusion is evenly distributed with several along circumference, the outer wall of the other end of connector body is provided with external thread, the plug connector end away from connector body is provided with baffle ring, the end away from connector body of baffle ring is fixedly provided with flange one;The utility model is fixed by the elastic protrusion of the inner wall of connector body and the annular groove of plug connector, need not complex tool auxiliary, just aligning insertion can be completed preliminary connection, installation process is simple and fast, simultaneously, the anti-skid line of baffle ring outside provides reliable holding point for plug operation, further facilitates the operation of staff, can effectively reduce the time required for mold cooling waterway connection.
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Description

Technical Field

[0001] This utility model relates to the field of quick coupling technology, and in particular to a quick coupling for cooling water circuits of injection molds. Background Technology

[0002] In the injection molding process, the cooling effect of the mold directly affects the product quality, molding cycle, and production efficiency. Traditional mold cooling water circuit connection methods often use threaded or flanged connections repeatedly. These connection methods not only require tools such as wrenches for installation and disassembly, making the operation cumbersome and time-consuming, but also make it difficult to meet the needs of efficient mold changing in modern production lines. Moreover, during long-term use, the sealing performance is prone to decline, often resulting in cooling water leakage. This not only affects the normal operation of the cooling system but may also lead to a series of adverse consequences such as mold rust and product defects.

[0003] To address this, we propose a quick-connect coupling for the cooling water circuit of injection molds. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-connect coupling for cooling water channels in injection molds.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quick-connector for cooling water in injection molds includes a connector body and a plug-in component. The connector body is a hollow tube. One end of the connector body has an elastic protrusion on its inner wall, and several elastic protrusions are evenly distributed along the circumference. One end of the plug-in component has an annular groove, and the elastic protrusions are engaged and fixed inside the annular groove. The other end of the connector body has an external thread on its outer wall. The end of the plug-in component away from the connector body has a retaining ring, and the end of the retaining ring away from the connector body has a flange fixedly mounted thereon. A mounting hole is provided above the flange.

[0007] As a further improvement of this utility model: the elastic protrusion of the connector body is hemispherical, the hemispherical shape and the connector body are integrally formed, and the spacing between adjacent elastic protrusions is equal.

[0008] As a further improvement of this utility model: a sealing ring is provided in the annular groove, the sealing ring is made of rubber, and the outer diameter of the sealing ring is slightly larger than the groove depth of the annular groove.

[0009] As a further embodiment of this utility model: a flange second is provided at the other end of the connector body, a mounting hole second is provided above the flange second, a plurality of mounting holes second are provided, and a bolt is fixedly provided inside the mounting hole second, and a nut is fixedly provided at the other end of the bolt.

[0010] As a further improvement of this utility model: the outer side of the retaining ring is provided with anti-slip texture, and the diameter of the retaining ring is larger than the outer diameter of the connector body.

[0011] As a further improvement of this utility model: an annular water-stop disc is provided at the end of the external thread, and the diameter of the annular water-stop disc is larger than the diameter of the external thread.

[0012] Compared with the prior art, this utility model provides a quick connector for cooling water channels in injection molds, which has the following beneficial effects:

[0013] 1. This utility model achieves engagement and fixation through the elastic protrusion on the inner wall of the connector body and the annular groove of the plug-in piece. No complicated tools are required. The initial connection can be completed simply by aligning and inserting the two parts. The installation process is simple and quick. At the same time, the anti-slip texture on the outer side of the retaining ring provides a reliable gripping point for the insertion and removal operation, which further facilitates the operation of the staff and can effectively reduce the time required for connecting the mold cooling water circuit.

[0014] 2. In this utility model, a rubber sealing ring is provided in the annular groove of the connector, and the outer diameter of the sealing ring is slightly larger than the groove depth of the annular groove. When the elastic protrusion is embedded in the annular groove, the sealing ring will be tightly pressed between the elastic protrusion and the inner wall of the annular groove, forming a tight sealing structure, which can effectively prevent cooling water leakage. In addition, the annular water-stop plate provided at the other end of the connector body can further enhance the sealing effect and improve the stability of the conveying.

[0015] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a quick connector for cooling water channels in an injection mold, as proposed in this utility model.

[0017] Figure 2 This is a front view cross-sectional structural diagram of a quick connector for cooling water channels in an injection mold according to the present invention.

[0018] Figure 3 This is a schematic diagram of the overall structure of the quick connector body for the cooling water circuit of an injection mold proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of a quick-connect fitting for cooling water channels in injection molds, as proposed in this utility model.

[0020] In the diagram: 1. Connector body; 2. Insert connector; 3. Elastic protrusion; 4. Annular groove; 5. External thread; 6. Retaining ring; 7. Flange 1; 8. Mounting hole 1; 9. Sealing ring; 10. Flange 2; 11. Mounting hole 2; 12. Bolt; 13. Nut; 14. Anti-slip texture; 15. Annular waterstop plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 utility model 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 utility model.

[0023] Example: A quick connector for cooling water channels in injection molds, such as... Figures 1-4 As shown, the connector includes a connector body 1 and a plug-in 2. The connector body 1 is a hollow tube. One end of the connector body 1 has an elastic protrusion 3 on its inner wall, and several elastic protrusions 3 are evenly distributed around the circumference. One end of the plug-in 2 has an annular groove 4, and the elastic protrusion 3 is engaged and fixed inside the annular groove 4. The other end of the connector body 1 has an external thread 5 on its outer wall. The end of the plug-in 2 away from the connector body 1 has a retaining ring 6, and the end of the retaining ring 6 away from the connector body 1 has a flange 7 fixedly installed. The flange 7 has a mounting hole 8 above it. The connector body 1 is engaged and fixed with the annular groove 4 of the plug-in 2 through the elastic protrusion 3 on its inner wall. No complicated tools are required. The initial connection can be completed simply by aligning and inserting the two parts. The installation process is simple and quick. At the same time, the anti-slip texture 14 on the outer side of the retaining ring 6 provides a reliable gripping point for the insertion and removal operation, which further facilitates the operation of the staff and can effectively reduce the time required for connecting the mold cooling water circuit.

[0024] like Figures 1-4 As shown, the elastic protrusion 3 of the connector body 1 is hemispherical. The hemispherical shape and the connector body 1 are integrally formed. The spacing between adjacent elastic protrusions 3 is equal. The integrally formed structure allows the elastic protrusion 3 and the connector body 1 to form a solid whole. During repeated insertion and removal, it is not easy to break or fall off, which greatly improves the service life and reliability of the connector.

[0025] like Figures 1-4As shown, a sealing ring 9 is provided in the annular groove 4. The sealing ring 9 is made of rubber, and the outer diameter of the sealing ring 9 is slightly larger than the groove depth of the annular groove 4. Due to the good elasticity and deformation ability of the rubber material itself, when the elastic protrusion 3 is embedded in the annular groove 4, the rubber sealing ring 9 with a slightly larger outer diameter will be subjected to double compression from the elastic protrusion 3 and the inner wall of the annular groove 4, thereby undergoing elastic deformation and tightly filling the gap between the two, which can effectively prevent cooling water from leaking from the connection part.

[0026] like Figures 1-4 As shown, a flange 2 10 is provided at the other end of the connector body 1. A mounting hole 2 11 is provided above the flange 2 10. Several mounting holes 2 11 are provided, and bolts 12 are fixedly installed inside the mounting holes 2 11. Nuts 13 are fixedly installed at the other end of the bolts 12. The flange is fixed by bolts 12 and nuts 13, thereby stabilizing the fixed plug-in 2 and connector body 1 and improving the service life of the connection.

[0027] like Figures 1-4 As shown, the outer side of the retaining ring 6 is provided with anti-slip texture 14. The diameter of the retaining ring 6 is larger than the outer diameter of the connector body 1. Because the diameter of the retaining ring 6 is larger than the outer diameter of the connector body 1, it forms a clear gripping area. When inserting or removing the connector, the staff can find the force point more easily without having to search for it.

[0028] like Figures 1-4 As shown, an annular water-stop disc 15 is provided at the end of the external thread 5. The diameter of the annular water-stop disc 15 is larger than the diameter of the external thread 5. When the connector body 1 is connected to the corresponding interface of the mold cooling water channel through the external thread 5, the larger diameter annular water-stop disc 15 will fit tightly against the end face of the interface as the thread is tightened.

[0029] Working principle: When this quick connector is used, when the connector body 1 is connected to the corresponding interface of the mold cooling water channel through the external thread 5, as the thread is tightened, the larger diameter annular water-stop disc 15 will fit tightly against the end face of the interface. The connector body 1 is a hollow tube, and several hemispherical elastic protrusions 3 are evenly distributed along the circumference on the inner wall of one end, and are integrally formed with the connector body 1, possessing a certain elastic deformation capability. One end of the plug-in 2 is provided with an annular groove 4. When connection is required, the end of the plug-in 2 with the annular groove 4 is aligned with the end of the connector body 1 with the elastic protrusion 3 and inserted. The elastic protrusion 3 undergoes elastic deformation during insertion. After insertion, the elastic protrusion 3 is locked and fixed inside the annular groove 4, realizing the initial mechanical connection between the connector body 1 and the plug-in 2. A rubber sealing ring 9 is sleeved inside the annular groove 4 of the plug-in 2, and the outer diameter of the sealing ring 9 is slightly larger than the groove depth of the annular groove 4. When the elastic protrusion 3 is locked into the annular groove At time 4, the sealing ring 9 is tightly pressed between the elastic protrusion 3 and the inner wall of the annular groove 4, forming the first seal, which effectively prevents cooling water from leaking from the gap between the two. The outer wall of the other end of the connector body 1 is provided with an external thread 5, which can be connected to the corresponding interface of the mold cooling water circuit. The diameter of the annular water-stop plate 15 at the end of the external thread 5 is larger than the diameter of the external thread 5. After the thread connection is in place, the annular water-stop plate 15 fits tightly with the interface end face, forming the second seal, which further enhances the overall sealing performance. At the same time, the outer side of the retaining ring 6 at the end of the plug 2 away from the connector body 1 is provided with anti-slip texture 14, which makes it convenient for workers to hold and apply force during installation and disassembly. The mounting holes 1 8 and 2 11 on the flange 1 7 and flange 2 10 are fitted with bolts 12 and nuts 13, which can be further fixed on the basis of the initial connection, ensuring that the connection is stable during long-term use, avoiding loosening due to vibration and other factors, and ensuring the stable operation of the cooling water circuit.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A quick connector for cooling water channels in injection molds, comprising a connector body (1) and a plug-in component (2), characterized in that... The connector body (1) is a hollow tube. One end of the connector body (1) has an elastic protrusion (3) on its inner wall. The elastic protrusion (3) is evenly distributed around the circumference. One end of the plug-in (2) has an annular groove (4). The elastic protrusion (3) is engaged and fixed inside the annular groove (4). The other end of the connector body (1) has an external thread (5). The plug-in (2) has a retaining ring (6) at the end away from the connector body (1). The retaining ring (6) has a flange (7) fixed at the end away from the connector body (1). The flange (7) has an installation hole (8) above it.

2. A quick connector for cooling water channels in injection molds according to claim 1, characterized in that... The elastic protrusion (3) of the connector body (1) is hemispherical, and the hemispherical shape and the connector body (1) are integrally formed. The spacing between adjacent elastic protrusions (3) is equal.

3. A quick connector for cooling water channels in injection molds according to claim 1, characterized in that... The annular groove (4) is provided with a sealing ring (9), which is made of rubber and the outer diameter of the sealing ring (9) is slightly larger than the groove depth of the annular groove (4).

4. A quick connector for cooling water channels in injection molds according to claim 1, characterized in that... The other end of the connector body (1) is provided with a flange (10), and a mounting hole (11) is provided above the flange (10). Several mounting holes (11) are provided, and bolts (12) are fixedly provided inside the mounting holes (11). A nut (13) is fixedly provided at the other end of the bolts (12).

5. A quick connector for cooling water channels in injection molds according to claim 1, characterized in that... The retaining ring (6) has anti-slip texture (14) on its outer side, and the diameter of the retaining ring (6) is larger than the outer diameter of the connector body (1).

6. A quick connector for cooling water channels in injection molds according to claim 1, characterized in that... The end of the external thread (5) is provided with an annular water-stop disc (15), the diameter of which is larger than the diameter of the external thread (5).