Quick connection structure of PE water supply pipe

Abstract

The utility model discloses a kind of PE water supply pipe quick connection structure, it is related to pipeline connecting device technical field, including connecting seat, further including connecting mechanism, fixed mechanism and auxiliary mechanism, connecting mechanism includes two locking components and two sealing components, each locking component and each sealing component are arranged in the inside of connecting seat, fixed mechanism includes two connecting rings and two anti-drop components, each connecting ring is fixedly installed on the outer surface of connecting seat, each anti-drop component is arranged between a connecting ring and a locking component, the utility model relates to a kind of PE water supply pipe quick connection structure, the connecting ring fixed by bolt provides the secondary insurance of anti-loosening for pipeline connection, enhances long-term reliability, and realizes one-way continuous tightening and reverse empty slide by the aid of ratchet, pawl type tightening mechanism, to significantly improve construction efficiency and operation convenience.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe connection devices, specifically a quick connection structure for PE water supply pipes. Background Technology

[0002] Quick-connect pipe fittings are devices used to rapidly connect or disconnect pipes. They typically achieve the connection through simple mechanical operations, eliminating the need for complex tools or traditional methods like welding and threading. These fittings often incorporate sealing elements and locking mechanisms and are widely used in domestic water supply, garden irrigation, and industrial equipment piping. Their core value lies in improving the efficiency of pipe installation and maintenance, and reducing fluid leakage during the connection process. However, existing quick-connect pipe fittings, especially in terms of long-term reliability and ease of operation, still have some shortcomings that require improvement.

[0003] Many existing quick-connect structures rely on a single threaded or elastic locking mechanism, lacking effective anti-loosening measures. When piping systems experience long-term vibration or pressure fluctuations, a single locking mechanism may gradually fail due to material fatigue or minor displacement, leading to loosening of the joint and potentially causing leakage or even detachment. This not only affects the normal operation of the system but may also result in water waste or safety hazards. Traditional structures are less adaptable to continuous mechanical vibration or pressure changes, making it difficult to guarantee the long-term stability of the connection.

[0004] When tightening some connecting structures, the operator needs to perform a wide-ranging circular rotation. During this rotation, the operator must constantly adjust their hand position, making the operation extremely inconvenient, time-consuming, and labor-intensive. More importantly, many structures lack effective unidirectional transmission or labor-saving mechanisms, resulting in high operational intensity, reduced construction efficiency, and increased workload for operators. Utility Model Content

[0005] The purpose of this utility model is to provide a quick connection structure for PE water supply pipes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A quick connection structure for PE water supply pipes includes a connector, a connection mechanism, a fixing mechanism, and an auxiliary mechanism. The connecting mechanism includes two locking components and two sealing components, each of which is located inside the connecting seat; The fixing mechanism includes two connecting rings and two anti-detachment components. Each connecting ring is fixedly installed on the outer surface of the connecting seat, and each anti-detachment component is disposed between a connecting ring and a locking component. The auxiliary mechanism includes two rotating rings and two tightening components. The two rotating rings are respectively mounted on the two locking components, and the two tightening components are respectively mounted on the two locking components.

[0007] As a further embodiment of this utility model: each sealing component includes a mounting groove and a sealing ring, the mounting groove is opened on the inner side of the connecting seat, and the sealing ring is fitted onto the outer surface of the mounting groove.

[0008] As a further embodiment of this utility model: each locking component includes an inner pressure sleeve and an outer pressure sleeve. The inner pressure sleeve is fitted onto the outer surface of the sealing ring, and the outer pressure sleeve is threaded onto one side of the outer surface of the connecting seat. The two rotating rings are rotatably connected to the outer surfaces of the two outer pressure sleeves respectively.

[0009] As a further embodiment of this utility model: the side end of the inner pressure sleeve is provided with a reverse oblique groove, and the interior of the inner pressure sleeve is provided with serrations.

[0010] As a further embodiment of this utility model: the outer pressure sleeve has a positive oblique groove inside, and the positive oblique groove of the outer pressure sleeve cooperates with the negative oblique groove of the inner pressure sleeve.

[0011] As a further embodiment of this utility model: each anti-detachment component includes several connecting grooves, several bolts and several threaded grooves. Several connecting grooves are respectively opened on the outer wall of one of the connecting rings, several bolts are respectively slidably connected to the inside of several connecting grooves, several threaded grooves are respectively opened on the outer wall of one of the outer pressure sleeves, and several bolts are respectively threadedly connected to the inside of several threaded grooves.

[0012] As a further embodiment of this utility model: each tightening assembly includes a spring coil, a pawl, and a ratchet. The spring coil is fixedly installed on the outer wall of one of the outer pressure sleeves, the pawl is fixedly installed on the outer surface of the outer pressure sleeve, and the ratchet is fixedly installed inside one of the rotating rings. The pawl and the ratchet cooperate with each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. The fixing mechanism of this structure further secures the connecting ring and the outer pressure sleeve with bolts, providing a secondary guarantee for the connection and effectively preventing the joint from loosening due to long-term vibration or pressure fluctuations, thus greatly enhancing the long-term reliability of the connection.

[0014] 2. The auxiliary mechanism of this structure significantly improves the efficiency and convenience of pipe connection construction through the tightening components. Its key lies in the unidirectional transmission system consisting of a spring coil, pawl, and ratchet. When the operator rotates the rotating ring in the tightening direction, the ratchet pushes the pawl, causing the outer pressure sleeve to rotate synchronously, completing the tightening process. If reverse rotation is required, the pawl automatically skips over the back of the ratchet teeth under the action of the spring coil, resulting in "free slip," while the outer pressure sleeve remains stationary. This "unidirectional drive, reverse free slip" characteristic allows the operator to perform continuous, rapid swinging operations from a single position, greatly reducing labor intensity. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a cross-sectional structural diagram of the connector in this utility model.

[0017] Figure 3 This is an exploded perspective view of the present invention.

[0018] Figure 4 This is a schematic diagram of the connecting seat structure in this utility model.

[0019] Figure 5 This is a schematic diagram of the connecting ring structure in this utility model.

[0020] Figure 6 This is a schematic diagram of the outer pressure sleeve structure in this utility model.

[0021] Figure 7 This is a schematic diagram of the rotating ring structure in this utility model.

[0022] The components are: 1. Connecting seat; 2. Mounting groove; 3. Sealing ring; 4. Inner pressure sleeve; 5. Outer pressure sleeve; 8. Connecting ring; 9. Connecting groove; 10. Bolt; 11. Threaded groove; 12. Rotating ring; 13. Spring coil; 14. Pawl; 15. Ratchet. Detailed Implementation

[0023] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0024] The present invention provides the following preferred embodiments: Example 1, as Figures 1-7 As shown, a quick connection structure for PE water supply pipes includes a connecting seat 1, as well as a connecting mechanism, a fixing mechanism, and an auxiliary mechanism. The connecting mechanism includes two locking components and two sealing components, each of which is disposed inside the connecting seat 1; The fixing mechanism includes two connecting rings 8 and two anti-detachment components. Each connecting ring 8 is fixedly installed on the outer surface of the connecting seat 1, and each anti-detachment component is disposed between a connecting ring 8 and a locking component. The auxiliary mechanism includes two rotating rings 12 and two tightening components. The two rotating rings 12 are respectively mounted on the two locking components, and the two tightening components are respectively mounted on the two locking components.

[0025] like Figures 1-3 As shown, each sealing component includes a mounting groove 2 and a sealing ring 3. The mounting groove 2 is opened on the inner side of the connector 1, and the sealing ring 3 is fitted to the outer surface of the mounting groove 2. After the locking component is fully screwed in, it will flatten the sealing ring 3 to fill the gap between the pipes connected inside and outside the connector 1, thereby improving the sealing performance.

[0026] like Figures 1-3 As shown, each locking assembly includes an inner pressure sleeve 4 and an outer pressure sleeve 5. The inner pressure sleeve 4 is fitted onto the outer surface of the sealing ring 3, and the outer pressure sleeve 5 is threaded onto one side of the outer surface of the connecting seat 1. Two rotating rings 12 are rotatably connected to the outer surfaces of the two outer pressure sleeves 5 respectively. The inner pressure sleeve 4 has a reverse oblique groove on its side end and serrations inside. The outer pressure sleeve 5 has a forward oblique groove inside. The forward oblique groove of the outer pressure sleeve 5 cooperates with the reverse oblique groove of the inner pressure sleeve 4. The outer pressure sleeve 5 is continuously screwed into the thread on the connecting seat 1. During this process, the forward oblique groove of the outer pressure sleeve 5 will continuously compress the reverse oblique groove of the inner pressure sleeve 4, causing the inner diameter of the inner pressure sleeve 4 to shrink, thereby embedding its own serrations into the outer wall of the externally connected pipe, thus completing the stable fixation of the externally connected pipe. When the inner pressure sleeve 4 is compressed, it will also compress the sealing ring 3 it is fitted with, causing it to deform and fill the gap.

[0027] like Figures 1-6 As shown, each anti-detachment component includes several connecting grooves 9, several bolts 10, and several threaded grooves 11. Several connecting grooves 9 are respectively opened on the outer wall of one of the connecting rings 8. Several bolts 10 are respectively slidably connected to the inside of several connecting grooves 9. Several threaded grooves 11 are respectively opened on the outer wall of one of the outer pressure sleeves 5. Several bolts 10 are respectively threadedly connected to the inside of several threaded grooves 11. When the outer pressure sleeve 5 is fully screwed into the connecting seat 1, its outer wall will fit against the outer wall of the connecting ring 8. At this time, the bolts 10 are passed through the connecting grooves 9 and screwed into the inside of the threaded grooves 11 on the outer pressure sleeve 5, so that the bolts 10 cooperate with the connecting ring 8 to fix the outer pressure sleeve 5 for a second time, avoiding the connection from shifting and loosening after a long period of use.

[0028] like Figures 1-7As shown, each tightening assembly includes a spring coil 13, a pawl 14, and a ratchet 15. The spring coil 13 is fixedly mounted on the outer wall of one of the outer pressure sleeves 5, the pawl 14 is fixedly mounted on the outer surface of the outer pressure sleeve 5, and the ratchet 15 is fixedly mounted inside one of the rotating rings 12. The pawl 14 and the ratchet 15 cooperate with each other. Under the constant pressure provided by the spring coil 13, the pawl 14 fixed to the outer pressure sleeve 5 maintains engagement with the ratchet 15 fixed inside the rotating ring 12. When the rotating ring 12 rotates in the tightening direction, the ratchet 15 drives the pawl 14, causing the outer pressure sleeve 5 to rotate synchronously to complete the tightening. When the outer pressure sleeve 5 rotates in the opposite direction, the pawl 14 overcomes the pressure of the spring coil 13 and skips a tooth, sliding back on the back of the ratchet 15 teeth to reset, preventing the outer pressure sleeve 5 from rotating in the opposite direction, thereby improving the tightening efficiency of the outer pressure sleeve 5.

[0029] The specific working process of this utility model is as follows: After the operator inserts the external PE water supply pipe into both ends of the connector 1, they rotate the rotating ring 12 of the auxiliary mechanism. The rotating ring 12 drives the outer pressure sleeve 5 of the locking assembly to screw into the thread on the connector 1. During this process, the positive oblique groove inside the outer pressure sleeve 5 continuously presses the negative oblique groove of the inner pressure sleeve 4, forcing the inner pressure sleeve 4 to contract radially, so that its inner serrations embed into the outer wall of the PE pipe to achieve initial fixation. At the same time, the contracting inner pressure sleeve 4 squeezes the sealing ring 3 of the sealing assembly, causing it to deform in the installation groove 2, filling the gap between the connector 1 and the pipe, and achieving a seal. To ensure a reliable connection, the operator then uses the anti-loosening component of the fixing mechanism to pass the bolt 10 through the connecting groove 9 on the connecting ring 8 and screw it into the threaded groove 11 of the outer pressure sleeve 5, performing a secondary mechanical lock on the outer pressure sleeve 5 to prevent it from loosening due to vibration or other reasons. Throughout the tightening process, the pawl 14 of the auxiliary mechanism remains engaged with the ratchet 15 under the constant force of the spring coil 13, allowing the rotating ring 12 to rotate in one direction only to tighten the outer pressure sleeve 5. When rotating in the opposite direction, it slips freely, thereby improving assembly efficiency.

[0030] The beneficial effects of this utility model are specifically reflected in the fact that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A quick-connect structure for PE water supply pipes, comprising a connecting base (1), characterized in that: It also includes connecting mechanisms, fixing mechanisms, and auxiliary mechanisms; The connecting mechanism includes two locking components and two sealing components, each of which is disposed inside the connecting seat (1); The fixing mechanism includes two connecting rings (8) and two anti-detachment components. Each connecting ring (8) is fixedly installed on the outer surface of the connecting seat (1), and each anti-detachment component is disposed between a connecting ring (8) and a locking component. The auxiliary mechanism includes two rotating rings (12) and two tightening components. The two rotating rings (12) are respectively mounted on the two locking components, and the two tightening components are respectively mounted on the two locking components.

2. The quick-connect structure for PE water supply pipes according to claim 1, characterized in that, Each sealing assembly includes a mounting groove (2) and a sealing ring (3). The mounting groove (2) is opened on the inner side of the connector (1), and the sealing ring (3) is fitted onto the outer surface of the mounting groove (2).

3. The quick connection structure for PE water supply pipes according to claim 2, characterized in that, Each locking assembly includes an inner pressure sleeve (4) and an outer pressure sleeve (5). The inner pressure sleeve (4) is fitted onto the outer surface of the sealing ring (3), and the outer pressure sleeve (5) is threaded onto one side of the outer surface of the connecting seat (1). Two rotating rings (12) are rotatably connected to the outer surfaces of the two outer pressure sleeves (5) respectively.

4. The quick-connect structure for PE water supply pipes according to claim 3, characterized in that, The inner pressure sleeve (4) has a reverse oblique groove on its side end, and the inner pressure sleeve (4) has serrations inside.

5. The quick connection structure for PE water supply pipes according to claim 4, characterized in that, The outer pressure sleeve (5) has a positive oblique groove inside, and the positive oblique groove of the outer pressure sleeve (5) cooperates with the negative oblique groove of the inner pressure sleeve (4).

6. The quick connection structure for PE water supply pipes according to claim 3, characterized in that, Each anti-detachment component includes several connecting grooves (9), several bolts (10) and several threaded grooves (11). Several connecting grooves (9) are respectively opened on the outer wall of one of the connecting rings (8), several bolts (10) are respectively slidably connected to the inside of several connecting grooves (9), several threaded grooves (11) are respectively opened on the outer wall of one of the outer pressure sleeves (5), and several bolts (10) are respectively threadedly connected to the inside of several threaded grooves (11).

7. The quick-connect structure for PE water supply pipes according to claim 1, characterized in that, Each tightening assembly includes a spring coil (13), a pawl (14), and a ratchet (15). The spring coil (13) is fixedly mounted on the outer wall of one of the outer pressure sleeves (5), the pawl (14) is fixedly mounted on the outer surface of the outer pressure sleeve (5), and the ratchet (15) is fixedly mounted inside one of the rotating rings (12). The pawl (14) and the ratchet (15) cooperate with each other.

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