Oil pipe joint structure of integrated die-casting injection chamber

Abstract

The utility model discloses an oil pipe joint structure of an integrated die-casting injection chamber, which comprises a joint, the outer wall of the joint is in threaded connection with a fixed pipe, the back of the fixed pipe is rotatably connected with a sleeve, an oil pipe joint is inserted in the sleeve, a cavity is formed in the oil pipe joint, a sealing element is arranged in the cavity, and the sealing element is connected with the oil pipe joint. An upper buckle plate is fixed to the back of the oil pipe connector, a lower buckle plate is attached to the back of the upper buckle plate, and fixing rods are fixed to the four corners of the outer wall of the lower buckle plate. According to the combined structure of the spring, the ejector block and the sealing ring, when the oil pipe connector is connected and attached to the connector, elastic force generated by extrusion of the spring pushes the ejector block to apply pressure to the sealing ring, the sealing ring is tightly attached to the connecting portion, hydraulic oil leakage is effectively prevented, and compared with a traditional sealing mode, sealing reliability is greatly improved; stable operation of the hydraulic system of the integrated die-casting injection chamber is guaranteed, and equipment faults and maintenance cost caused by oil leakage are reduced.

Description

Technical Field

[0001] This utility model relates to the field of oil pipe technology for die casting machines, specifically to an oil pipe joint structure for an integrated die casting injection chamber. Background Technology

[0002] In the practical application of integrated die casting technology, the injection chamber is a core component, and the performance of its oil pipe joints directly affects the stability of equipment operation and production efficiency. As the integrated die casting process develops towards large-scale and precision, higher requirements are placed on the sealing, filtration, and visual monitoring functions of the oil pipe joints.

[0003] Currently, the common oil pipe joints on the market have many defects in structural design. Firstly, the sealing structure mostly uses a single sealing ring or a simple gasket, relying solely on static extrusion to achieve sealing. Under the conditions of high-frequency impact load and severe vibration in the injection chamber, the sealing ring is prone to loosening and deformation, leading to hydraulic oil leakage. This not only wastes resources but may also cause equipment failure due to unstable hydraulic system pressure, increasing downtime maintenance costs.

[0004] Secondly, existing oil pipe joints generally lack visual observation design, making it difficult for staff to intuitively grasp the real-time flow status and flow rate changes of hydraulic oil. When problems such as abnormal pressure or flow rate fluctuations occur in the hydraulic system, it is impossible to quickly locate the fault point, resulting in low fault diagnosis efficiency and seriously affecting production continuity.

[0005] Furthermore, during the operation of the die-casting machine, factors such as mold wear and high-temperature oxidation will generate a large number of metal shavings, oxides and other impurities. These impurities can easily enter the hydraulic system through the oil pipe joints. Traditional oil pipe joints usually do not have a filter device. The hydraulic oil mixed with impurities will accelerate the wear of precision components such as hydraulic pumps and valve groups, causing system pressure loss, reduced control accuracy, and even equipment failure, significantly shortening the service life of the equipment and increasing maintenance costs and production safety hazards. Utility Model Content

[0006] The purpose of this invention is to provide an oil pipe joint structure for an integrated die-casting injection chamber to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an oil pipe joint structure for an integrated die-casting injection chamber, comprising a joint, a fixed pipe threadedly connected to the outer wall of the joint, a sleeve rotatably connected to the back of the fixed pipe, an oil pipe joint inserted into the inside of the sleeve, a cavity formed inside the oil pipe joint, and a sealing element provided inside the cavity, an upper buckle plate fixed to the back of the oil pipe joint, a lower buckle plate attached to the back of the upper buckle plate, fixing rods fixed to the four corners of the outer wall of the lower buckle plate, a fixing element provided on the outer wall of the upper buckle plate, and a filter screen fixed inside the lower buckle plate.

[0008] Preferably, the inner wall of the fixing tube and the outer wall of the joint are both threaded.

[0009] Preferably, the sealing element includes a spring, the spring being fixed inside the oil pipe joint, a top block being fixed to the front surface of the spring, and a sealing ring being fitted to the front surface of the top block.

[0010] Preferably, the cavity formed inside the oil pipe joint is sized to match the sealing ring, and the sealing ring is made of corrosion-resistant rubber.

[0011] Preferably, the fastener includes a groove block, which is fixed to the outer wall of the upper buckle plate. The front surface of the groove block is provided with a threaded block, and the threaded block is threadedly connected to the outer wall of the fixing rod.

[0012] Preferably, the upper and lower snap-on panels are made of transparent acrylic material.

[0013] Preferably, the filter screen is made of polypropylene, which has corrosion resistance and high temperature resistance.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The combination structure of spring, top block and sealing ring, when the oil pipe joint is connected and fitted, the spring is compressed and the elastic force generated pushes the top block to apply pressure to the sealing ring, so that the sealing ring fits tightly against the connection part, effectively preventing hydraulic oil leakage. Compared with the traditional sealing method, the sealing reliability is greatly improved, ensuring the stable operation of the hydraulic system of the integrated die-casting injection chamber and reducing equipment failure and maintenance costs caused by oil leakage.

[0016] The innovative combination of upper and lower clamping plates with a filter screen effectively filters hydraulic oil. When hydraulic oil flows through the connector, the filter screen intercepts impurities in the oil, preventing them from entering the hydraulic system, thus preventing wear and blockage of hydraulic components, extending equipment lifespan, improving product quality and production efficiency in integrated die casting, and reducing equipment failures and downtime caused by impurities.

[0017] The use of threaded connections for the fixed pipes and fittings, along with the upper and lower retaining plates secured by fixing rods, grooves, and threaded blocks, makes the installation and disassembly of the oil pipe fittings simple and convenient. Workers can complete installation and maintenance without complex tools, significantly reducing installation and maintenance difficulty and time costs. Furthermore, the upper and lower retaining plates are made of transparent acrylic, allowing workers to easily observe the flow of hydraulic oil and the clogging of the filter screen in real time, enabling timely cleaning and maintenance to ensure consistent filtration effectiveness. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 for Figure 1 Detailed diagram of the exploded connection structure of the upper and middle panels, filter screen, and lower panel;

[0020] Figure 3 for Figure 1 Detailed view of the connection structure in a side cross-section;

[0021] Figure 4 for Figure 3 Enlarged detail of the connection structure of the central sealing component;

[0022] Figure 5 for Figure 3 Detailed diagram of the connection structure viewed from above.

[0023] In the diagram: 1. Connector, 2. Fixed pipe, 3. Sleeve, 4. Oil pipe connector, 5. Spring, 6. Top block, 7. Sealing ring, 8. Upper buckle plate, 9. Lower buckle plate, 10. Fixed rod, 11. Groove block, 12. Threaded block, 13. Filter screen. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5This utility model provides a technical solution for an integrated die-casting injection chamber oil pipe joint structure: An integrated die-casting injection chamber oil pipe joint structure includes a joint 1, which serves as the core connecting component to ensure hydraulic oil transmission. A fixed pipe 2 is threaded onto the outer wall of the joint 1. The fixed pipe 2 adapts to the complex working environment of the die-casting workshop, effectively preventing loosening due to corrosion. A sleeve 3 is rotatably connected to the back of the fixed pipe 2. An oil pipe joint 4 is inserted into the sleeve 3. A positioning protrusion is provided on the outer wall of the oil pipe joint 4, which cooperates with a positioning groove on the inner wall of the sleeve 3. When the oil pipe joint 4 is inserted into the sleeve 3, the positioning protrusion can embed into the positioning groove, preventing circumferential movement of the oil pipe joint 4 within the sleeve 3 and ensuring connection stability. A cavity is formed inside the oil pipe joint 4, and a sealing element is provided inside the cavity. The sealing element is used to seal the connection between the oil pipe joint 4 and the joint 1, preventing hydraulic oil leakage at the connection point. An upper buckle plate 8 is fixed to the back of the oil pipe joint 4. At the edge, a sealing groove is machined, and a sealing strip is installed in the sealing groove. When it is fastened with the lower buckle plate 9, the sealing strip can prevent external dust and impurities from entering the filter screen 13 area, ensuring the filtration effect of the filter screen 13. The lower buckle plate 9 is attached to the back of the upper buckle plate 8. The lower buckle plate 9 is made of transparent acrylic material and has a support column inside. The support column contacts the filter screen 13 and provides support for the filter screen 13. Fixing rods 10 are fixed at the four corners of the outer wall of the lower buckle plate 9. The two ends of the fixing rods 10 are machined with external threads. One end is connected to the threaded block 12, and the other end is fixedly connected to the lower buckle plate 9. The outer wall of the upper buckle plate 8 is provided with a fixing component, which is used to connect and fix the upper buckle plate 8 and the lower buckle plate 9 after they are fastened. The filter screen 13 is fixed inside the lower buckle plate 9, which can filter impurities and ensure smooth flow of hydraulic oil, keeping the flow loss of hydraulic oil to a minimum. The inner wall of the fixing pipe 2 and the outer wall of the connector 1 are both machined with threads.

[0026] The sealing element includes a spring 5, which is fixed inside the oil pipe connector 4. This ensures that after the connector 1 is connected to the oil pipe connector 4, it can provide a suitable thrust to the top block 8, so that the sealing ring 7 can achieve the best sealing effect. The front surface of the spring 5 is fixed with a top block 6, which cooperates with the front end of the spring 5 to ensure that the thrust of the spring 5 can be accurately transmitted to the top block 8, preventing the spring 5 from shifting during operation. The front surface of the top block 6 is fitted with a sealing ring 7. The gap between the sealing ring 7 and the internal cavity of the oil pipe connector 4 is extremely small, ensuring that the sealing ring 7 can fit tightly after installation and play the best sealing role. The cavity formed inside the oil pipe connector 4 is matched with the sealing ring 7, and the sealing ring 7 is made of corrosion-resistant rubber.

[0027] The fastener includes a groove block 11, which is fixed to the outer wall of the upper buckle plate 8. The groove block ensures that the fixing rod 11 can be accurately aligned during installation, thereby improving the fixing effect. The front surface of the groove block 11 is provided with a threaded block 12, which can fix the fixing rod 10 that passes through the groove block 11. The threaded block 12 is threadedly connected to the outer wall of the fixing rod 10. The upper buckle plate 8 and the lower buckle plate 9 are made of transparent acrylic material, and the filter screen 13 is made of polypropylene material, which has corrosion resistance and high temperature resistance.

[0028] Working Principle: When using the oil pipe joint structure of an integrated die-casting injection chamber, during the installation of the oil pipe joint 4, the user first attaches the fixing pipe 2 to the connection point of the joint 1 and rotates it. The fixing pipe 2 engages with the threaded connection of the joint 1. As the fixing pipe 2 rotates, it drives the oil pipe joint 4 forward through the sleeve 3 to connect and fit with the joint 1. During this connection, the spring 5 is compressed, and the elastic force pushes forward, compressing the sealing ring 7 through the top block 6, thereby increasing the sealing effect. Then, the user fastens the lower buckle 9 to the connection point of the upper buckle 8. During this connection, the fixing rod 10 passes through the groove block 11. The user then attaches the threaded block 12 to the outer wall of the fixing rod 10 and rotates it. After the action is completed, the fixing rod 10 can be fixed to the upper buckle plate 8 and the lower buckle plate 9. When the hydraulic oil flows out through the connector 1, the hydraulic rod enters the interior of the upper buckle plate 8 and the lower buckle plate 9. When the hydraulic oil passes through the filter screen 13, the filter screen 13 can effectively filter the impurities in the hydraulic oil. During use, the operator can pass through the transparent upper buckle plate 8 and the lower buckle plate 9 to allow the oil to enter. When it is necessary to clean the impurities, the operator rotates the threaded block 12 to remove it and pulls the lower buckle plate 9 down. When pulling, the fixing rod 10 is taken out from the interior of the groove block 11. Then, after the lower buckle plate 9 is removed, the impurities on the surface of the filter screen 13 can be cleaned.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe joint structure for an integrated die-casting injection chamber, comprising a joint (1), characterized in that, The outer wall of the connector (1) is threaded with a fixing tube (2), and the back of the fixing tube (2) is rotatably connected with a sleeve (3). An oil pipe connector (4) is inserted into the inside of the sleeve (3). The inside of the oil pipe connector (4) forms a cavity, and a sealing element is provided inside the cavity. An upper buckle plate (8) is fixed to the back of the oil pipe connector (4). A lower buckle plate (9) is attached to the back of the upper buckle plate (8). Fixing rods (10) are fixed at the four corners of the outer wall of the lower buckle plate (9). A fixing element is provided on the outer wall of the upper buckle plate (8). A filter screen (13) is fixed inside the lower buckle plate (9).

2. The oil pipe joint structure of the integrated die-casting injection chamber according to claim 1, characterized in that, The inner wall of the fixed tube (2) and the outer wall of the joint (1) are both threaded.

3. The oil pipe joint structure of the integrated die-casting injection chamber according to claim 1, characterized in that, The sealing element includes a spring (5), which is fixed inside the oil pipe joint (4). A top block (6) is fixed on the front surface of the spring (5), and a sealing ring (7) is attached to the front surface of the top block (6).

4. The oil pipe joint structure of the integrated die-casting injection chamber according to claim 1, characterized in that, The cavity formed inside the oil pipe joint (4) is matched with the sealing ring (7), and the sealing ring (7) is made of corrosion-resistant rubber.

5. The oil pipe joint structure of the integrated die-casting injection chamber according to claim 1, characterized in that, The fastener includes a groove block (11), which is fixed to the outer wall of the upper buckle plate (8). The front surface of the groove block (11) is provided with a threaded block (12), and the threaded block (12) is threadedly connected to the outer wall of the fixing rod (10).

6. The oil pipe joint structure of the integrated die-casting injection chamber according to claim 1, characterized in that, The upper buckle plate (8) and the lower buckle plate (9) are made of transparent acrylic material.

7. The oil pipe joint structure of the integrated die-casting injection chamber according to claim 1, characterized in that, The filter screen (13) is made of polypropylene, which has corrosion resistance and high temperature resistance.

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