A high-pressure resistant plastic hose connector

Abstract

This utility model discloses a high-pressure resistant plastic hose connector, relating to the field of hose connector technology. It includes a cylindrical body with externally threaded cylinders fixedly installed at both ends. A fixing mechanism is provided on the outer wall of the externally threaded cylinders. The fixing mechanism includes an internally threaded cylinder, a mounting ring, a mounting block, a fixing plate, a locking block, and a fixing hole. The internally threaded cylinder is threadedly connected to the corresponding outer wall of the externally threaded cylinder. The mounting ring is rotatably installed on the outer wall of the internally threaded cylinder, and the outer wall of the mounting ring has several mounting grooves. In the technical solution provided by this utility model, by setting up the fixing mechanism, rotating the fixing plate causes the fixing hole at one end of the fixing plate to engage with the fixing post. Then, the mounting block slides, causing the locking groove on the mounting block to engage with the locking block at one end of the fixing plate, limiting the fixing plate and preventing it from rotating. By setting up the fixing plate, the connection strength between the internally and externally threaded cylinders is enhanced, improving pressure resistance and reducing the likelihood of fluid leakage due to loosening at the threaded connection caused by pressure impact.

Description

Technical Field

[0001] This utility model relates to the field of hose connector technology, and in particular to a high-pressure resistant plastic hose connector. Background Technology

[0002] In industrial production, agricultural irrigation, municipal water supply, and household fluid transportation, plastic hoses are widely used for various fluid transfer operations due to their advantages such as light weight, corrosion resistance, and low cost. As the core component for connecting hoses to equipment and hoses to each other, the connection stability, sealing performance, and high-pressure resistance of plastic hose connectors directly determine the safety and reliability of the fluid transfer system. Most existing connectors use a threaded connection structure to fix the hose to the hose. When transferring high-pressure fluids, the threaded connection is prone to loosening due to pressure impact, leading to fluid leakage and resource waste. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a high-pressure resistant plastic hose connector to solve the problem that the threaded connection is prone to loosening due to pressure impact when transmitting high-pressure fluid, resulting in fluid leakage.

[0004] In view of this, the present invention provides a high-pressure resistant plastic hose connector, including a cylindrical body, wherein external threaded cylinders are fixedly installed at both ends of the cylindrical body, and a fixing mechanism is provided on the outer wall of the external threaded cylinder;

[0005] The fixing mechanism includes an internally threaded cylinder, a mounting ring, a mounting block, a fixing plate, a locking block, and a fixing hole. The internally threaded cylinder is threadedly connected to the outer wall of the corresponding externally threaded cylinder. The mounting ring is rotatably mounted on the outer wall of the internally threaded cylinder. The outer wall of the mounting ring has several mounting grooves. The mounting block is slidably mounted on the wall of the corresponding mounting groove. The fixing plate is rotatably mounted on the wall of the mounting groove. The locking block is fixedly mounted on one side of the top of the fixing plate. The fixing hole is located on the other side of the top of the fixing plate.

[0006] Optionally, the mounting block has a slot at its bottom, and the mounting block engages with the corresponding slot.

[0007] Optionally, the inner wall of the mounting groove is provided with sliding grooves on both sides, and the bottom of the mounting block is slidably mounted on the sliding groove wall.

[0008] Optionally, first protrusions are fixedly installed at both ends of the outer wall of the cylinder, and a plurality of fixing posts are fixedly installed on the outer wall of the cylinder, with the fixing holes on the fixing plate engaging with the corresponding fixing posts.

[0009] Optionally, a sealing ring and a second protrusion are fixedly installed on the inner wall of the external threaded cylinder, and several rubber pads are fixedly installed at one end of the external threaded cylinder.

[0010] Optionally, the outer wall of the internally threaded cylinder is provided with several annular grooves.

[0011] Optionally, the outer wall of the mounting ring is provided with a plurality of connecting holes, the connecting holes communicating with the corresponding mounting grooves, the mounting groove wall is fixedly mounted with a mounting plate, a plurality of limiting blocks are fixedly mounted on one side of the mounting plate, and one end of the limiting block is slidably mounted in the corresponding annular groove.

[0012] As can be seen from the above technical solutions, the embodiments of this utility model have the following advantages:

[0013] 1. This utility model discloses a high-pressure resistant plastic hose connector. By setting a fixing mechanism, when one end of the hose is fixed to the cylinder body through the internal threaded cylinder, the fixing plate is rotated by hand to make the fixing hole at one end of the fixing plate engage with the fixing post. Then, the mounting block is slid to make the groove on the mounting block engage with the locking block at one end of the fixing plate, thereby limiting the fixing plate and preventing it from rotating. By setting the fixing plate, the connection strength between the internal threaded cylinder and the external threaded cylinder is enhanced, the pressure resistance is improved, and the possibility of fluid leakage due to loosening caused by pressure impact at the threaded connection is reduced.

[0014] 2. In this utility model, a high-pressure resistant plastic hose connector has a mounting plate fixedly mounted on a mounting ring by screws. When the mounting ring or the fixing plate is damaged, the mounting plate can be removed so that the mounting ring can be directly removed from the internal threaded cylinder, making it convenient to replace the mounting ring or the fixing plate.

[0015] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a diagram showing the position of the external threaded cylinder of this utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0021] Explanation of reference numerals in the attached drawings: 1. Cylinder body; 2. First protrusion; 3. External threaded cylinder; 4. Sealing ring; 5. Second protrusion; 6. Internal threaded cylinder; 7. Annular groove; 8. Mounting ring; 9. Mounting plate; 10. Limiting block; 11. Mounting block; 12. Fixing plate; 13. Clamping block; 14. Fixing hole; 15. Fixing post; 16. Rubber pad. Detailed Implementation

[0022] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.

[0023] The following describes a high-pressure resistant plastic hose connector according to an embodiment of the present invention in detail with reference to the accompanying drawings. Example

[0024] For easier understanding, please refer to Figures 1 to 4 An embodiment of a high-pressure resistant plastic hose connector provided by this utility model includes a cylindrical body 1, with externally threaded cylinders 3 fixedly installed at both ends of the cylindrical body 1. A fixing mechanism is provided on the outer wall of the externally threaded cylinder 3. The fixing mechanism includes an internally threaded cylinder 6, a mounting ring 8, a mounting block 11, a fixing plate 12, a locking block 13, and a fixing hole 14. The internally threaded cylinder 6 is threadedly connected to the corresponding outer wall of the externally threaded cylinder 3. The mounting ring 8 is rotatably installed on the outer wall of the internally threaded cylinder 6. Several mounting grooves are opened on the outer wall of the mounting ring 8. The mounting block 11 is slidably installed on the corresponding groove wall. The fixing plate 12 is rotatably installed on the groove wall. The locking block 13 is fixedly installed on one side of the top of the fixing plate 12. The fixing hole 14 is opened on the other side of the top of the fixing plate 12.

[0025] It should be noted that by setting a fixing mechanism, when one end of the hose is fixed to the cylinder 1 via the internal threaded cylinder 6, the fixing plate 12 is rotated by hand so that the fixing hole 14 at one end of the fixing plate 12 engages with the fixing post 15. Then, the mounting block 11 is slid so that the slot on the mounting block 11 engages with the locking block 13 at one end of the fixing plate 12, thereby limiting the fixing plate 12 and preventing it from rotating. By setting the fixing plate 12, the connection strength between the internal threaded cylinder 6 and the external threaded cylinder 3 is enhanced, the pressure resistance is improved, and the possibility of fluid leakage due to loosening caused by pressure impact at the threaded connection is reduced.

[0026] In this example, the cylinder 1 is made of plastic, such as polyamide 66, which has excellent high pressure resistance and corrosion resistance. Both ends of the cylinder are fixedly installed with external threaded cylinders 3 through injection molding. The inner diameter of the external threaded cylinder 3 is matched with the outer diameter of the hose to be connected, ensuring that the hose can be stably inserted.

[0027] In some embodiments, such as Figure 4 As shown, the bottom of the mounting block 11 is provided with a slot, the locking block 13 engages with the corresponding slot, and the inner walls of the mounting slot are provided with sliding grooves on both sides, and the bottom of the mounting block 11 is slidably mounted on the sliding groove wall.

[0028] It should be noted that the fixing plate 12 is mounted on the wall of the mounting groove by rotating around the shaft, and can be flipped around the shaft. The mounting block 11 can slide above the center of rotation of the fixing plate 12 to limit the fixing plate 12.

[0029] In some embodiments, such as Figure 2 , Figure 3 As shown, first protrusions 2 are fixedly installed at both ends of the outer wall of the cylinder 1, and several fixing posts 15 are fixedly installed on the outer wall of the cylinder 1. The fixing holes 14 on the fixing plate 12 are engaged with the corresponding fixing posts 15. A sealing ring 4 and a second protrusion 5 are fixedly installed on the inner wall of the external threaded cylinder 3, and several rubber pads 16 are fixedly installed at one end of the external threaded cylinder 3.

[0030] It should be noted that the sealing ring 4 is made of nitrile rubber. When the hose is inserted into the external threaded cylinder 3, the sealing ring 4 fits tightly against the outer wall of the hose and the inner wall of the external threaded cylinder 3, effectively preventing high-pressure fluid leakage. When the hose is inserted, the second protrusion 5 can be embedded in the outer wall of the hose, enhancing the connection friction between the hose and the external threaded cylinder 3, and preventing the hose from coming out of the external threaded cylinder 3 under high-pressure conditions.

[0031] In this example, after the hose is inserted into the outer wall of one end of the cylinder 1, the first protrusion 2 can be embedded in the inner wall of the hose to enhance the connection friction between the hose and one end of the cylinder 1.

[0032] In this example, the inner wall of the internal threaded cylinder 6 is provided with an internal thread that matches the outer wall of the external threaded cylinder 3. It is fitted onto the outer wall of the corresponding external threaded cylinder 3 through a threaded connection. When the internal threaded cylinder 6 is tightened onto the external threaded cylinder 3, the inner wall of one end of the internal threaded cylinder 6 presses the hose tightly against the outer wall of the cylinder 1 through the rubber pad 16 to fix the hose.

[0033] In this example, the outer wall of the internal threaded cylinder 6 is provided with several annular grooves 7. The annular grooves 7 are evenly distributed along the axial direction of the internal threaded cylinder 6. They are mainly used to cooperate with the limiting block 10 of the mounting ring 8 to realize the rotation limit of the mounting ring 8. Example

[0034] In some embodiments, such as Figure 4 As shown, the outer wall of the internally threaded cylinder 6 is provided with several annular grooves 7, and the outer wall of the mounting ring 8 is provided with several connecting holes. The connecting holes are connected to the corresponding mounting grooves. The mounting plate 9 is fixedly installed on the groove wall of the mounting groove. Several limiting blocks 10 are fixedly installed on one side of the mounting plate 9. One end of the limiting block 10 is slidably installed in the corresponding annular groove 7.

[0035] It should be noted that the mounting plate 9 is fixedly mounted on the mounting ring 8 with screws. When the mounting ring 8 or the fixing plate 12 is damaged, the mounting plate 9 can be removed so that the mounting ring 8 can be directly removed from the internal threaded cylinder 6, making it convenient to replace the mounting ring 8 or the fixing plate 12.

[0036] Working principle: When installing the connector, the internal threaded cylinder 6 is fitted onto the outer wall of the hose, and one end of the hose is inserted between the external threaded cylinder 3 and the outer wall of one end of the cylinder 1. The internal threaded cylinder 6 is fitted onto the outer wall of the external threaded cylinder 3. The internal threaded cylinder 6 is turned until the end face of the internal threaded cylinder 6 is in close contact with the rubber pad 16 at the end of the external threaded cylinder 3, thereby forming a radial compression fixation on the hose.

[0037] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A high-pressure resistant plastic flexible hose connector, characterized in that: Includes a cylindrical body (1), with external threaded cylinders (3) fixedly installed at both ends of the cylindrical body (1), and a fixing mechanism provided on the outer wall of the external threaded cylinders (3); The fixing mechanism includes an internal threaded cylinder (6), a mounting ring (8), a mounting block (11), a fixing plate (12), a locking block (13), and a fixing hole (14). The internal threaded cylinder (6) is threadedly connected to the outer wall of the corresponding external threaded cylinder (3). The mounting ring (8) is rotatably mounted on the outer wall of the internal threaded cylinder (6). The outer wall of the mounting ring (8) has several mounting grooves. The mounting block (11) is slidably mounted on the wall of the corresponding mounting groove. The fixing plate (12) is rotatably mounted on the wall of the mounting groove. The locking block (13) is fixedly mounted on one side of the top of the fixing plate (12). The fixing hole (14) is opened on the other side of the top of the fixing plate (12).

2. The high-pressure resistant plastic flexible hose connector according to claim 1, characterized in that: The mounting block (11) has a slot at its bottom, and the locking block (13) engages with the corresponding slot.

3. The high-pressure resistant plastic flexible hose connector according to claim 1, characterized in that: The inner wall of the mounting groove is provided with sliding grooves on both sides, and the bottom of the mounting block (11) is slidably installed on the sliding groove wall.

4. The high-pressure resistant plastic flexible hose connector according to claim 1, characterized in that: The outer walls of the cylinder (1) are fixedly installed with first protrusions (2) at both ends, and a number of fixing posts (15) are fixedly installed on the outer walls of the cylinder (1). The fixing holes (14) on the fixing plate (12) are engaged with the corresponding fixing posts (15).

5. A high-pressure resistant plastic flexible hose connector according to claim 1, characterized in that: A sealing ring (4) and a second protrusion (5) are fixedly installed on the inner wall of the external threaded cylinder (3), and several rubber pads (16) are fixedly installed on one end of the external threaded cylinder (3).

6. A high-pressure resistant plastic flexible hose connector according to claim 1, characterized in that: The outer wall of the internally threaded cylinder (6) is provided with several annular grooves (7).

7. A high-pressure resistant plastic flexible hose connector according to claim 6, characterized in that: The outer wall of the mounting ring (8) is provided with several connecting holes, which are connected to the corresponding mounting groove. The mounting groove wall is fixedly installed with a mounting plate (9), and several limiting blocks (10) are fixedly installed on one side of the mounting plate (9). One end of the limiting block (10) is slidably installed in the corresponding annular groove (7).

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