Self-sealing pipeline connector

Abstract

The utility model discloses a self-sealing pipeline connector, which relates to the technical field of pipeline connectors and comprises a connector and two symmetrically arranged fixing rings fixedly arranged on the inner wall of the connector, annular baffles are fixedly arranged on the sides, close to each other, of the two fixing rings, and sealing air bags are fixedly arranged on the sides, away from each other, of the two annular baffles. A connecting cavity is formed between the sealing air bag and the fixing ring, an inflation assembly is fixedly arranged on the outer wall of the connector, a three-way pipe is connected through the inflation assembly, the two ends of the three-way pipe are both communicated with inflation pipes, and pipe openings of the inflation pipes penetrate into the connector and are communicated with the sealing air bag. According to the pipeline connector, after a pipeline is inserted into the pipeline connector, the side portion of the pipeline can be extruded through expansion of the air bag, the pipeline connector is connected with the connector in a sealed mode, and connection convenience of the pipeline connector and the pipeline is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe connector technology, specifically to a self-sealing pipe connector. Background Technology

[0002] Pipe connectors are devices used to connect two pipes or fittings to enable the transmission of fluid or powder media. In order to ensure the sealing during the pipe connection process, the connection points need to be quickly sealed after the pipe connector is connected to the pipe.

[0003] A search revealed a patent document with publication number CN222746794U that discloses a self-sealing pipe connector. This connector achieves pipe fixation and sealing by rotating the extrusion sleeve to compress the sealing rubber, without the need for external tools or equipment. The locking mechanism achieves a tight fit and seal between the pipe and the connector through the combined action of the threaded structure and the clamping device.

[0004] However, the aforementioned pipe connector requires threading the outer wall of the pipe and rotating the sleeve to complete the thread engagement before the pipe can be locked. This increases the number of steps in the pipe connection process and reduces the efficiency of the pipe connection. Utility Model Content

[0005] In view of the problems existing in the above-mentioned self-sealing pipe connectors, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a self-sealing pipe connector, which solves the problems of the cumbersome connection steps and poor sealing performance of existing pipe connectors.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A self-sealing pipe connector includes a connector and two symmetrically arranged fixing rings fixedly disposed on the inner wall of the connector. An annular baffle is fixedly disposed on the side of the two fixing rings that are close to each other, and a sealing airbag is fixedly disposed on the side of the two annular baffles that are far apart from each other. A connecting cavity is provided between the sealing airbag and the fixing ring.

[0009] An inflation component is fixedly provided on the outer wall of the connector, and a three-way tube is connected to the inflation component. Both ends of the three-way tube are connected to inflation tubes, and the openings of the inflation tubes are inserted into the connector and connected to the sealing airbag.

[0010] Preferably, the inflation assembly includes a syringe tube, which is fixedly disposed on the outer wall of the connector and has its air outlet end connected to a three-way pipe. A piston is slidably embedded in the inner wall of the syringe tube, and a push rod is fixedly disposed at the end of the piston. A push plate is fixedly disposed at the end of the push rod, and a push limiting mechanism is provided between the push plate and the outer wall of the syringe tube.

[0011] Preferably, the pushing and limiting mechanism includes a locking rod, a crossbar is fixedly inserted inside the push plate, the locking rod is slidably disposed inside the crossbar, a spring is sleeved on the upper end of the locking rod, the two ends of the spring are fixedly connected to the locking rod and the crossbar respectively, and a plurality of spaced slots are opened on the outer wall of the syringe tube, and the lower end of the locking rod is inserted into the slot.

[0012] Preferably, the lower end of the lever is provided with a pushing slope, which is positioned towards the slot.

[0013] Furthermore, both of the aforementioned inflation tubes are high-pressure hoses.

[0014] Preferably, the sealing airbag is an annular airbag.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. This utility model, through the provided connector, fixing ring, annular baffle, sealing airbag, inflation component and inflation tube, can compress the side of the pipe and complete the sealing connection with the connector by the inflation of the airbag after the pipe is inserted into the pipe connector, thereby improving the convenience of connecting the pipe connector and the pipe.

[0017] 2. This utility model, through its inflation component and push limiting mechanism, can fix the mating position of the syringe tube and piston after the sealing airbag is inflated, ensuring that the sealing airbag always maintains a stable inflation and sealing state. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a sectional perspective view of the present invention;

[0021] Figure 3This is a schematic diagram of the structure of the inflatable component of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Connector; 2. Retaining ring; 3. Annular baffle; 4. Sealing airbag; 5. T-connector; 6. Inflation tube; 7. Syringe tube; 8. Piston; 9. Push rod; 10. Push plate; 11. Locking rod; 12. Crossbar; 13. Spring; 14. Slot; 15. Pushing ramp. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model discloses a self-sealing pipe connector.

[0026] This utility model provides, for example Figure 1-3 The self-sealing pipe connector shown includes a connector 1 and two symmetrically arranged fixing rings 2 fixedly disposed on the inner wall of the connector 1. An annular baffle 3 is fixedly disposed on the side of the two fixing rings 2 that are close to each other, and a sealing airbag 4 is fixedly disposed on the side of the two annular baffles 3 that are far apart from each other. The sealing airbag 4 is an annular airbag, and a connecting cavity is provided between the sealing airbag 4 and the fixing rings 2.

[0027] An inflation assembly is fixedly provided on the outer wall of connector 1, and a three-way pipe 5 is connected to the inflation assembly. Both ends of the three-way pipe 5 are connected to inflation pipes 6. Both inflation pipes 6 are high-pressure hoses. The inlet of the inflation pipe 6 passes through connector 1 and is connected to the sealing airbag 4. The inflation assembly includes a syringe tube 7. The syringe tube 7 is fixedly provided on the outer wall of connector 1, and the air outlet is connected to the three-way pipe 5. A piston 8 is slidably embedded in the inner wall of syringe tube 7. A push rod 9 is fixedly provided at the end of piston 8, and a push plate 10 is fixedly provided at the end of push rod 9.

[0028] In order to fix the mating position of the syringe tubing and piston after the sealing bladder is inflated, and to ensure that the sealing bladder always maintains a stable inflated and sealed state, such as Figure 3 As shown, a pushing and limiting mechanism is provided between the push plate 10 and the outer wall of the syringe tube 7. The pushing and limiting mechanism includes a locking rod 11. A crossbar 12 is fixedly inserted inside the push plate 10. The locking rod 11 is slidably disposed inside the crossbar 12. A spring 13 is sleeved on the upper end of the locking rod 11. The two ends of the spring 13 are fixedly connected to the locking rod 11 and the crossbar 12, respectively. A pushing inclined surface 15 is opened at the lower end of the locking rod 11. The pushing inclined surface 15 is set towards the slot 14. A plurality of slots 14 are opened on the outer wall of the syringe tube 7 at intervals. The lower end of the locking rod 11 is inserted into the slot 14.

[0029] Working principle: Insert the two sections of pipe to be connected into the connector 1 from both ends until the pipe ends abut against the annular baffle 3. At this point, the pipe is positioned between two symmetrical fixing rings 2. The annular baffle 3 restricts the axial movement of the pipe, providing precise positioning for sealing and ensuring that the center line of the pipe is aligned with the connector axis. Then, push the push plate 10, which drives the piston 8 to slide forward inside the syringe tube 7 via the push rod 9. The piston's squeezing action diverts the air inside the syringe tube through the three-way tube 5 to the two inflation tubes 6. The inflation tubes 6 deliver the gas to the annular structure of the sealing airbag 4. Under the action of air pressure, the airbag expands uniformly towards the outer wall of the pipe. Due to the fixing rings 2... Supported by the annular baffle 3, the airbag generates radial extrusion force when it inflates, tightly fitting the outer circumference of the pipe and filling the gap between the connector 1 and the pipe, forming a double sealing interface. The inner side of the airbag contacts the pipe, and the outer side contacts the inner wall of the connector. During the forward movement of the push plate 10, the pushing inclined surface 15 at the lower end of the locking rod 11 contacts the slot 14 on the outer wall of the syringe tube 7 and is pressed upward, compressing the spring 13. When the push plate 10 reaches the target position and the airbag inflates to the required pressure, the locking rod 11 aligns with the corresponding slot 14, and the spring 13 resets, pushing the lower end of the locking rod 11 into the slot 14, forming a mechanical lock to prevent the piston 8 from rebounding and causing the airbag to deflate.

[0030] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A self-sealing pipe connector comprising a connector (1) and two symmetrically arranged securing rings (2) fixed to the inner wall of the connector (1), characterized in that An annular baffle (3) is fixedly provided on the side of the two fixed rings (2) that are close to each other, and a sealing airbag (4) is fixedly provided on the side of the two annular baffles (3) that are far apart from each other. A connecting cavity is provided between the sealing airbag (4) and the fixed ring (2). An inflation component is fixedly provided on the outer wall of the connector (1), and a three-way pipe (5) is connected to the inflation component. Both ends of the three-way pipe (5) are connected to an inflation pipe (6). The inlet of the inflation pipe (6) passes through the connector (1) and is connected to the sealing airbag (4).

2. The self-sealing pipe connector of claim 1, wherein, The inflation assembly includes a syringe tube (7), which is fixedly disposed on the outer wall of the connector (1) and the air outlet is connected to the three-way pipe (5). A piston (8) is slidably embedded in the inner wall of the syringe tube (7). A push rod (9) is fixedly disposed at the end of the piston (8). A push plate (10) is fixedly disposed at the end of the push rod (9). A push limiting mechanism is provided between the push plate (10) and the outer wall of the syringe tube (7).

3. The self-sealing pipe connector of claim 2, wherein, The pushing and limiting mechanism includes a locking rod (11), a crossbar (12) is fixedly inserted inside the push plate (10), the locking rod (11) is slidably disposed inside the crossbar (12), a spring (13) is sleeved on the upper end of the locking rod (11), the two ends of the spring (13) are fixedly connected to the locking rod (11) and the crossbar (12) respectively, and a plurality of spaced slots (14) are opened on the outer wall of the syringe tube (7), and the lower end of the locking rod (11) is inserted into the slots (14).

4. The self-sealing pipe connector of claim 3, wherein, The lower end of the lever (11) is provided with a pushing inclined surface (15), which is set towards the slot (14).

5. The self-sealing pipe connector of claim 1, wherein, Both of the aforementioned air inflators (6) are high-pressure hoses.

6. The self-sealing pipe connector of claim 1, wherein, The sealing airbag (4) is an annular airbag.

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