A pipe quick connector

Abstract

The application relates to a pipeline quick connector, belonging to the technical field of quick connectors, which comprises a connecting structure, a communicating structure, a clamping structure and a pipeline structure, the connecting structure comprises a connector, a fixing hole, a clamping block, a positioning groove, a clamping hole and a limiting block, the communicating structure comprises a connector body, a fixing block and a positioning block, the clamping structure comprises a plastic clamping spring, a clamping plate and a clamping block, the communicating structure is internally provided with a check ring, one side of the check ring is provided with a first sealing ring, and the side, away from the first sealing ring, of the check ring is provided with a second sealing ring. The application solves the problem that when the elastic clamping ring is located in the interior of the connector, the clamping ring is in a closed space, an operator cannot intuitively observe whether the clamping ring is accurately positioned, and the phenomenon of 'false connection' caused by problems such as insufficient pipeline insertion depth, clamping ring deformation or foreign matter blockage easily occurs, thereby burying a leakage hidden danger for system operation.

Description

Technical Field

[0001] This application relates to quick-connect fittings, and more particularly to a quick-connect fitting for pipes. Background Technology

[0002] Quick-connect pipe fittings are widely used connection components in fluid transport systems, designed to enable rapid assembly and disassembly between pipes without relying on traditional connection methods such as welding and threaded fastening. Their core structure typically consists of a connector body with a hollow channel, an elastic sealing ring for sealing, and a snap-fit ​​component for fixing. They are suitable for multiple fields such as water supply and drainage, HVAC, industrial automation, and agricultural irrigation, combining ease of operation with reliable connection, greatly reducing the time and cost of pipe installation and maintenance.

[0003] However, the locking mechanism of some existing quick-connect fittings is mostly hidden inside the connector. For example, an annular groove is opened on the inner wall of the connector and an elastic retaining ring is built in. When the pipe is inserted, the retaining ring will automatically spring into the groove on the outer wall of the pipe to complete the locking. However, this process is completely in a closed space, and the operator cannot visually observe whether the retaining ring is in place. It is very easy to cause a "false connection" due to insufficient pipe insertion depth, retaining ring deformation or foreign object obstruction, which may cause leakage risks to the system operation. Utility Model Content

[0004] The purpose of this application is to provide a quick-connect pipe fitting that solves the problem that when the elastic retaining ring is located inside the connector, it is in a closed space, and the operator cannot visually observe whether the retaining ring is accurately in place. This can easily lead to a "false connection" due to insufficient pipe insertion depth, retaining ring deformation, or obstruction by foreign objects, thus creating a potential leakage hazard for system operation.

[0005] The quick-connect pipe fitting provided in this application adopts the following technical solution: it includes a connection structure, a connecting structure, a snap-fit ​​structure, and a pipeline structure. The connection structure includes a connector, a fixing hole, a snap-fit ​​block, a positioning groove, a clamping hole, and a limiting block. The connecting structure includes a connector body, a fixing block, and a positioning block. The snap-fit ​​structure includes a plastic snap ring, a clamping plate, and a clamping block. The connecting structure has a retaining ring inside, a first sealing ring on one side of the retaining ring, and a second sealing ring on the side of the retaining ring away from the first sealing ring.

[0006] By adopting the above technical solution, when using this device, simply insert the pipe body into the connector, allowing the pipe body to enter the connector body through the connector and contact the retaining ring, the first sealing ring, and the second sealing ring to complete the connection and sealing between the pipe body and the connector body. Then, the clamping plate inside the plastic snap ring can be inserted into the connector through the clamping hole, so that the clamping plate contacts the stop block and limits the stop block, thereby limiting the pipe body. When the plastic snap ring is inserted, the clamping block inside the plastic snap ring clamps the limiting block, thereby further limiting the position of the clamping plate. This solves the problem that when the elastic snap ring is located inside the connector, it is in a closed space, and the operator cannot visually observe whether the snap ring is accurately in place. This can easily lead to a "false connection" phenomenon due to insufficient pipe insertion depth, snap ring deformation, or foreign object obstruction, which may cause leakage risks to the system operation.

[0007] Preferably, there are several fixing holes, which are evenly distributed inside the connector. The number of locking blocks is equal to the number of fixing holes, and the locking blocks are located inside the several fixing holes and are fixedly connected to the connector.

[0008] By adopting the above technical solution, the fixing hole and the locking block can be used to lock the connecting structure, thereby fixing the connecting structure to the connecting structure.

[0009] Preferably, there are several positioning slots, and these positioning slots are evenly distributed inside the connector.

[0010] By adopting the above technical solution, the positioning groove can limit the connection structure, ensuring that the connection structure enters the interior of the connecting structure.

[0011] Preferably, there are several locking holes, which are evenly distributed inside the connector. The number of limiting blocks is equal to the number of locking holes, and the limiting blocks are located next to the locking holes and are fixedly connected to the connector.

[0012] By adopting the above technical solution, the clamping hole allows the clamping structure to enter the interior of the connector, facilitating the clamping structure to fix the pipeline structure. The limiting block can limit the clamping structure and avoid strengthening the fixed connection between the clamping structure and the connector.

[0013] Preferably, the number of fixing blocks is several, the number of fixing blocks is equal to the number of fixing holes, and the several fixing blocks are evenly fixedly connected to the outside of the connector body. The number of positioning blocks is equal to the number of positioning grooves, and the fixing blocks are evenly fixedly connected to the outside of the connector body.

[0014] By adopting the above technical solution, the fixing block can enter the interior of the connecting structure, thereby fixing the connecting structure and the connecting structure together. The positioning block can limit the connection position of the connecting structure and the connecting structure when the connecting structure enters the interior of the connecting structure, ensuring close contact between the two.

[0015] Preferably, the clamping plate is U-shaped, and the clamping plate is located inside the plastic retaining spring and is fixedly connected to the plastic retaining spring;

[0016] By adopting the above technical solution, the clamping plate can enter the interior of the connection structure to limit the pipeline structure.

[0017] Preferably, the plastic retaining spring is U-shaped, and there are two clamping blocks, which are respectively fixedly connected to the two ends inside the plastic retaining spring;

[0018] By adopting the above technical solution, the clamping block can contact the connecting structure, and the position of the plastic retaining ring can be further defined by the connecting structure.

[0019] Preferably, the pipeline structure includes a pipeline body and a stop block, wherein the stop block is located outside the pipeline body and is fixedly connected to the pipeline body;

[0020] By adopting the above technical solution, after the stop block enters the interior of the connecting structure, the locking structure will enter the interior of the connecting structure to limit the stop block, thereby connecting the pipe body with the connecting structure.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. This quick-connect pipe fitting, through the arrangement of a connector, fixing hole, locking block, positioning groove, clamping hole, limiting block, fitting body, fixing block, positioning block, plastic snap ring, clamping plate, clamping block, pipe body, and stop block, allows the device to achieve connection and sealing by simply inserting the pipe body into the connector, allowing the pipe body to enter the fitting body through the connector and contact the retaining ring, first sealing ring, and second sealing ring. Then, the clamping plate inside the plastic snap ring is inserted into the connector through the locking hole, contacting the stop block and limiting its position, thus limiting the pipe body. When the plastic snap ring is inserted, the clamping block inside it clamps the limiting block, further limiting the position of the clamping plate. This solves the problem that when the elastic snap ring is inside the connector, it is in a closed space, making it impossible for operators to visually observe whether the snap ring is accurately positioned. This easily leads to "false connection" due to insufficient pipe insertion depth, snap ring deformation, or obstruction by foreign objects, creating a potential leakage hazard for system operation. Attached Figure Description

[0023] Figure 1 This is an axial view schematic diagram of this application;

[0024] Figure 2 This is a schematic axial sectional view of this application;

[0025] Figure 3 This is an axial view schematic diagram of the connection structure of this application;

[0026] Figure 4 This is an axial view schematic diagram of the connected structure of this application;

[0027] Figure 5 Here is an axial view of the snap-fit ​​structure of this application:

[0028] Figure 6 This is an axial view schematic diagram of the pipeline structure of this application;

[0029] Figure 7 This is an axial view schematic diagram of the retaining ring of this application.

[0030] In the picture:

[0031] 1. Connection structure; 2. Connecting structure; 3. Snap-fit ​​structure; 4. Pipeline structure; 5. Retaining ring; 6. First sealing ring; 7. Second sealing ring; 101. Connector; 102. Fixing hole; 103. Locking block; 104. Positioning groove; 105. Clamping hole; 106. Limiting block; 201. Connector body; 202. Fixing block; 203. Positioning block; 301. Plastic snap ring; 302. Clamping plate; 303. Clamping block; 401. Pipeline body; 402. Stop block. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 7 This application will be described in further detail below.

[0033] Example 1: A quick-connect pipe fitting, as shown in the figure. Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7The system includes a connecting structure 1, a connecting structure 2, a snap-fit ​​structure 3, and a pipeline structure 4. The connecting structure 1 includes a connector 101, a fixing hole 102, a snap-fit ​​block 103, a positioning groove 104, a clamping hole 105, and a limiting block 106. The connecting structure 2 includes a connector body 201, a fixing block 202, and a positioning block 203. The snap-fit ​​structure 3 includes a plastic snap ring 301, a clamping plate 302, and a clamping block 303. A retaining ring 5 is provided inside the connecting structure 2. A first sealing ring 6 is provided on one side of the retaining ring 5, and a second sealing ring 7 is provided on the side of the retaining ring 5 away from the first sealing ring 6. There are several fixing holes 102, evenly spaced inside the connector 101. The number of snap-fit ​​blocks 103 is the same as the number of fixing holes 102. The number of locking blocks 103 is equal to the number of fixing holes 102, and they are fixedly connected to the connector 101. The number of positioning grooves 104 is also equal to the number of locking holes 105, and they are evenly distributed inside the connector 101. The number of limiting blocks 106 is equal to the number of locking holes 105, and they are located next to the locking holes 105 and fixedly connected to the connector 101. The number of fixing blocks 202 is equal to the number of fixing holes 102, and they are evenly fixedly connected to the outside of the connector body 201. The number of positioning blocks 203 is also equal to the number of fixing holes 102. The number of fixing blocks 202 is equal to the number of positioning slots 104. The fixing blocks 202 are evenly fixedly connected to the outside of the connector body 201. The clamping plate 302 is U-shaped and located inside the plastic retainer 301, which is also U-shaped. There are two clamping blocks 303, each fixedly connected to the inner ends of the plastic retainer 301. The pipeline structure 4 includes a pipe body 401 and a stop block 402. The stop block 402 is located outside the pipe body 401 and fixedly connected to it. The connection is achieved through the connector 101, fixing hole 102, clamping block 103, positioning slot 104, clamping hole 105, limiting block 106, connector body 201, and fixing block. The arrangement of components 202, 203, 301, 302, 303, 401, and 402 allows the device to be used simply by inserting the pipe body 401 into the connector 101, allowing it to enter the connector body 201 and contact the retaining ring 5, the first sealing ring 6, and the second sealing ring 7. This establishes the connection and seal between the pipe body 401 and the connector body 201. Then, the clamping plate 302 inside the plastic retaining ring 301 can be inserted into the connector 101 through the clamping hole 105, contacting the stop block 402 and limiting its position, thus restricting the movement of the pipe body 401.When the plastic retaining ring 301 is inserted, the clamping block 303 inside the plastic retaining ring 301 clamps the limiting block 106, thereby further limiting the position of the clamping plate 302. This solves the problem that when the elastic retaining ring is located inside the connector 101, it is in a closed space, and the operator cannot visually observe whether the retaining ring is accurately in place. This easily leads to a "false connection" phenomenon due to insufficient pipe insertion depth, retaining ring deformation, or obstruction by foreign objects, which poses a potential leakage hazard to the system operation.

[0034] The implementation principle of this application embodiment is as follows: In use, the connector 101 and the connector body 201 are fixedly connected to each other. During connection, the fixing block 202 is located inside the fixing hole 102. At this time, the locking block 103 contacts the fixing block 202, thereby limiting the fixing block 202 and preventing it from moving. The positioning block 203 is located inside the positioning groove 104, thereby limiting the connector body 201 again and preventing the connector body 201 from moving inside the connector 101. Then, the first sealing ring 6 can be inserted into the connector 101. When inserted, the first sealing ring 6 enters the connector body 201 through the connector 101. Then, the retaining ring 5 is inserted into the connector 101. Inside connector 101, during insertion, the retaining ring 5 enters the connector body 201 through connector 101 and contacts the first sealing ring 6. Then, the second sealing ring 7 is inserted into connector 101, entering the connector body 201 through connector 101 and contacting the retaining ring 5. At this time, the first sealing ring 6 and the second sealing ring 7 clamp the retaining ring 5. Next, the pipe body 401 is placed inside connector 101, entering the connector body 201. At this time, the first sealing ring 6, the retaining ring 5, and the second sealing ring 7 are located on the outside of the pipe body 401, thus sealing the pipe body 401. When the pipe body 401 can no longer move inside the connector body 201, the user holds the plastic retaining ring 301 and places it on the outside of the connector 101. During placement, the clamping plate 302 enters the connector 101 through the clamping hole 105. After entering, the clamping plate 302 contacts the side of the stop block 402 away from the connector body 201, thus limiting the stop block 402 and consequently limiting the pipe body 401, preventing it from moving. At this time, the clamping block 303 contacts the limiting block 106, and the limiting block 106 engages with the clamping block 303, thus limiting the plastic retaining ring 301. After this, the process is complete. The connection between the pipe body 401 and the connector body 201 is established, and then the connector body 201 can be used from the end away from the pipe body 401. When it is necessary to disassemble the pipe body 401, the user only needs to pull the plastic retaining ring 301 to deform the plastic retaining ring 301. After deformation, the clamping block 303 is released from the limiting block 106, and then the plastic retaining ring 301 can be pulled out, so that the clamping plate 302 is released from the clamping hole 105 from the connector 101, and the plastic retaining ring 301 can be disassembled. After disassembly, simply pull the connector 101 to separate the connector 101 from the pipe body 401, thereby canceling the connection between the connector body 201 and the pipe body 401.

Claims

1. A quick-connect pipe fitting, comprising a connecting structure (1), a connecting structure (2), a snap-fit ​​structure (3), and a pipe structure (4), characterized in that: The connection structure (1) includes a connector (101), a fixing hole (102), a locking block (103), a positioning groove (104), a clamping hole (105), and a limiting block (106). The communication structure (2) includes a connector body (201), a fixing block (202), and a positioning block (203). The snap-fit ​​structure (3) includes a plastic snap ring (301), a clamping plate (302), and a clamping block (303). The communication structure (2) is provided with a retaining ring (5) inside. A first sealing ring (6) is provided on one side of the retaining ring (5), and a second sealing ring (7) is provided on the side of the retaining ring (5) away from the first sealing ring (6).

2. A quick-connect pipe fitting according to claim 1, characterized in that: The number of fixing holes (102) is several, and the several fixing holes (102) are evenly opened inside the connector (101). The number of locking blocks (103) is equal to the number of fixing holes (102). The several locking blocks (103) are respectively located inside the several fixing holes (102) and are fixedly connected to the connector (101).

3. A quick-connect pipe fitting according to claim 1, characterized in that: The number of positioning grooves (104) is several, and the several positioning grooves (104) are evenly opened inside the connector (101).

4. A quick-connect pipe fitting according to claim 1, characterized in that: The number of clamping holes (105) is several, and the several clamping holes (105) are evenly opened inside the connector (101). The number of limiting blocks (106) is equal to the number of clamping holes (105). The several limiting blocks (106) are respectively located next to the several clamping holes (105) and are fixedly connected to the connector (101).

5. A quick-connect pipe fitting according to claim 1, characterized in that: The number of fixing blocks (202) is several, and the number of fixing blocks (202) is equal to the number of fixing holes (102). Several fixing blocks (202) are evenly fixedly connected to the outside of the connector body (201). The number of positioning blocks (203) is equal to the number of positioning grooves (104). The fixing blocks (202) are evenly fixedly connected to the outside of the connector body (201).

6. A quick-connect pipe fitting according to claim 1, characterized in that: The clamping plate (302) is U-shaped and is located inside the plastic retaining ring (301) and is fixedly connected to the plastic retaining ring (301).

7. A quick-connect pipe fitting according to claim 1, characterized in that: The plastic retaining ring (301) is U-shaped, and there are two clamping blocks (303). The two clamping blocks (303) are respectively fixedly connected to the two inner ends of the plastic retaining ring (301).

8. A quick-connect pipe fitting according to claim 1, characterized in that: The pipeline structure (4) includes a pipeline body (401) and a stop (402), the stop (402) being located outside the pipeline body (401) and fixedly connected to the pipeline body (401).

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