Gas pipe insulation quick connector

Abstract

The utility model relates to the technical field of gas pipes, in particular to a gas pipe insulation quick connector. The gas pipe insulation quick connector comprises a connector A copper pipe and a connector B copper pipe, the connector A copper pipe is fixedly sleeved with an insulation A sleeve, the connector B copper pipe is fixedly sleeved with an insulation B sleeve, the end face, close to the external thread part, of the insulation A sleeve is fixedly embedded with a covering sleeve, and an annular telescopic rubber air cushion is arranged in the covering sleeve. The outer sleeve wall of the insulation A sleeve is provided with a plurality of mounting grooves which are axially distributed, and each mounting groove is internally provided with a hook lock part. According to the gas pipe insulation quick connector, automatic sealing is achieved when the connector A copper pipe and the connector B copper pipe are in butt joint, the sealing effect is far better than that of traditional gasket sealing, gas leakage is effectively avoided, the hook lock component is matched with threaded connection of the connector A copper pipe and the connector B copper pipe for double fixing, and the sealing effect is good. The anti-vibration and anti-loosening capabilities are obviously improved, and the long-term use stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of gas pipe technology, and in particular to a gas pipe insulating quick connector. Background Technology

[0002] In the use of gas pipes, the connection between pipes and equipment, and between pipes themselves, is a critical link. It is necessary not only to ensure the ease of connection, but also to meet core requirements such as sealing, insulation, and robustness. Most existing gas pipe fittings use a simple threaded connection structure, which, while achieving basic alignment, has many limitations in practical applications. For example, after threading, vibration can easily cause the fitting to reverse, leading to loosening and affecting connection stability.

[0003] Therefore, it is necessary to provide a new quick-connect insulated gas pipe to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a quick-connect insulated gas pipe connector.

[0005] The gas pipe insulating quick connector provided by this utility model includes a connector A copper pipe and a connector B copper pipe. An insulating A sleeve is fixedly sleeved on the connector A copper pipe, and the connecting end of the connector A copper pipe is provided with an external thread. An insulating B sleeve is fixedly sleeved on the connector B copper pipe, and the connecting end of the connector B copper pipe is provided with an internal thread.

[0006] The insulating sleeve A is fixedly fitted with a cover sleeve near the end face of the external thread, and the cover sleeve is provided with an annular telescopic rubber air cushion. The insulating sleeve A is provided with an annular air storage cavity for supplying gas to the annular telescopic rubber air cushion.

[0007] The outer wall of the insulating sleeve A has multiple axially distributed mounting grooves, and each mounting groove is provided with a hook locking component. The hook locking component includes a sliding rod, which is fixedly installed in the mounting groove. The sliding rod is provided with a hook plate and a spring is sleeved on the sliding rod.

[0008] The insulating sleeve A has an integrally formed annular protrusion on the side near the internal thread.

[0009] Preferably, the hook lock component further includes a sliding seat, which is sleeved on the sliding rod and slidably connected to the sliding rod. The sliding seat is rotatably connected to one end of the hook plate through a rotating bracket, and the other end of the hook plate is fixedly fitted with a U-shaped hook for hooking the annular protrusion.

[0010] Preferably, one end of the spring is fixedly connected to the end of the sliding seat opposite to the external thread, and the other end of the spring is fixedly connected to the inner wall of the mounting groove opposite to the external thread.

[0011] Preferably, the insulating sleeve A has a snap-fit ​​groove on the sleeve wall near the cover sleeve.

[0012] Preferably, the outer ring wall of the annular telescopic rubber air cushion is fixedly fitted into the annular groove of the cover sleeve, and an air guide pipe for ventilation is installed between the annular telescopic rubber air cushion and the annular air storage cavity.

[0013] Preferably, a slidingly connected annular piston is installed inside the annular gas storage cavity, and a central connecting pipe is fixedly installed on the annular piston. The central connecting pipe extends out of the annular gas storage cavity and is fixedly installed with a pressure ring.

[0014] Compared with related technologies, the gas pipe insulating quick connector provided by this utility model has the following beneficial effects:

[0015] In this invention, the annular telescopic rubber air cushion achieves automatic sealing when the copper tubes of connector A and connector B are connected. Its sealing effect is far superior to that of traditional gasket seals, effectively preventing gas leakage. The hook and lock components, together with the threaded connection of the copper tubes of connector A and connector B, provide double fixation, significantly improving vibration resistance and anti-loosening ability, and ensuring long-term stability. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the gas pipe insulating quick connector provided by this utility model;

[0017] Figure 2 for Figure 1 A cross-sectional view of the copper pipe at connector A shown.

[0018] Figure 3 for Figure 2 A magnified structural diagram of point A is shown below;

[0019] Figure 4 for Figure 1 A cross-sectional view of the copper pipe at connector B is shown.

[0020] Figure 5 for Figure 1 The diagram shows the structure of the hook and lock component.

[0021] The following are the labels in the diagram: 1. Copper pipe A, connector; 11. External thread; 2. Copper pipe B, connector; 21. Internal thread; 3. Insulating sleeve A; 3a. Annular air storage chamber; 3b. Mounting groove; 3c. Snap-fit ​​groove; 31. Cover sleeve; 32. Air guide pipe; 4. Annular telescopic rubber air cushion; 5. Annular piston; 51. Central connecting pipe; 52. Press ring; 6. Insulating sleeve B; 61. Annular protrusion; 7. Hook and lock component; 71. Sliding rod; 72. Sliding seat; 73. Hook hanging plate; 731. U-hook; 74. Spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0024] Please see Figures 1 to 5 This utility model provides a quick-connect insulated gas pipe coupling, which includes a copper pipe A (1), a copper pipe B (2), an insulating sleeve A (3), and an insulating sleeve B (6). The insulating sleeve A (3) is fixedly fitted onto the copper pipe A (1), and the connecting end of the copper pipe A (1) is provided with an external thread 11. The insulating sleeve B (6) is fixedly fitted onto the copper pipe B (2), and the connecting end of the copper pipe B (2) is provided with an internal thread 21. The copper pipe A (1) and the copper pipe B (2) are quickly connected through the external thread 11 and the internal thread 21. The copper pipe A (1) (or the copper pipe B (2)) is installed on the gas pipeline, while the copper pipe B (2) (or the copper pipe A (1)) is installed on the gas equipment pipeline. The insulating sleeve A (3) and the insulating sleeve B (6) are respectively fitted onto the outside of the copper pipe A (1) and the copper pipe B (2), respectively, to isolate the metal pipe body from the outside environment, avoid electrochemical corrosion and static electricity accumulation, extend the service life of the coupling, and improve the safety of use.

[0025] In the embodiments of this utility model, please refer to Figures 1 to 5 An insulating sleeve A 3 is fixedly fitted with a cover sleeve 31 near the end face of the external thread 11, and an annular telescopic rubber air cushion 4 is provided inside the cover sleeve 31. An annular air storage cavity 3a for supplying gas to the annular telescopic rubber air cushion 4 is opened inside the insulating sleeve A 3. Specifically, the outer ring wall of the annular telescopic rubber air cushion 4 is fixedly fitted into the annular groove opened in the cover sleeve 31, and a venting pipe 32 for ventilation is installed between the annular telescopic rubber air cushion 4 and the annular air storage cavity 3a. An annular piston 5 is installed in the annular air storage cavity 3a, and a central connecting pipe 51 is fixedly installed on the annular piston 5. The central connecting pipe 51 extends out of the annular air storage cavity 3a and a pressure ring 52 is fixedly installed thereon.

[0026] It should be noted that when connecting copper pipe 1 (connector A) and copper pipe 2 (connector B), copper pipe 2 (connector B) is inserted into the cover sleeve 31. Then, copper pipe 2 (connector B) is rotated so that the internal thread 21 is screwed along the external thread 11 on copper pipe 1 (connector A). Thus, the internal thread 21 abuts against the pressure ring 52 and pushes the annular piston 5 towards the tail of the annular gas storage chamber 3a through the central abutment pipe 5. As a result, the gas in the annular gas storage chamber 3a enters the annular telescopic rubber gas cushion 4 through the gas guide pipe 32. Therefore, the annular telescopic rubber gas cushion 4 expands and quickly fills the gap between the internal thread 21 and the cover sleeve 31, which greatly improves the sealing performance of the connection between copper pipe 1 (connector A) and copper pipe 2 (connector B). The annular telescopic rubber gas cushion 4 achieves automatic sealing when copper pipe 1 (connector A) and copper pipe 2 (connector B), and its sealing effect is far superior to that of traditional gasket sealing, effectively preventing gas leakage.

[0027] In the embodiments of this utility model, please refer to Figures 1 to 5 An integrally formed annular protrusion 61 is provided on the side of the insulating sleeve A 3 near the internal thread 21. The outer wall of the insulating sleeve A 3 has multiple axially distributed mounting grooves 3b, and each mounting groove 3b is provided with a hook locking component 7. The hook locking component 7 includes a sliding rod 71, which is fixedly installed in the mounting groove 3b, and a hook plate 73 is provided on the sliding rod 71. The hook locking component 7 also includes a sliding seat 72, which is sleeved on the sliding rod 71 and slidably connected to the sliding rod 71. The sliding seat 72 is rotatably connected to one end of the hook plate 73 through a rotating bracket, and the other end of the hook plate 73 is fixedly fitted with a U-shaped hook 731 for hooking the annular protrusion 61. A spring 74 is sleeved on the sliding rod 71, and one end of the spring 74 is fixedly connected to the end of the sliding seat 72 away from the external thread 11, and the other end of the spring 74 is fixedly connected to the inner wall of the mounting groove 3b away from the external thread 11.

[0028] It should be noted that after copper pipe 1 (connector A) and copper pipe 2 (connector B) are installed, the hook plate 73 is pulled and slid towards the annular protrusion 61, thereby stretching the spring 74. Then, the U-shaped hook 731 on the hook plate 73 is hooked onto the annular protrusion 61. At this time, under the action of the spring 74, the U-shaped hook 731 on the hook plate 73 can firmly bite the annular protrusion 61, thus improving the firmness of the connection between copper pipe 1 (connector A) and copper pipe 2 (connector B). Combined with the threaded connection of copper pipe 1 (connector A) and copper pipe 2 (connector B), double fixation is achieved, significantly improving the vibration resistance and anti-loosening ability, and ensuring long-term stability.

[0029] Furthermore, an engaging groove 3c is provided on the sleeve wall of the insulating sleeve A 3 near the cover sleeve 31. When the U-shaped hook 731 does not engage with the annular protrusion 61, the hook plate 73 can be pulled to drive the U-shaped hook 731 to hook into the engaging groove 3c, thus preventing the hook plate 73 from deflecting arbitrarily.

[0030] In addition, the spring 74 is made of high-strength alloy spring 74 to improve fatigue resistance, and a buffer pad is added at the connection between the sliding seat 72 and the spring 74 to reduce the concentration of spring force, while the annular telescopic rubber air cushion 4 is made of fluororubber or silicone rubber material with excellent resistance to gas corrosion and aging resistance.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A gas pipe insulation quick connector, comprising a connector A copper pipe (1) and a connector B copper pipe (2), an insulation A sleeve (3) is fixedly sleeved on the connector A copper pipe (1), and an outer threaded portion (11) is arranged on the connecting end of the connector A copper pipe (1); an insulation B sleeve (6) is fixedly sleeved on the connector B copper pipe (2), and an inner threaded portion (21) is arranged on the connecting end of the connector B copper pipe (2), characterized in that: a cover sleeve (31) is fixedly embedded on the end face of the insulation A sleeve (3) close to the outer threaded portion (11), and an annular elastic rubber air cushion (4) is arranged in the cover sleeve (31); an annular gas storage cavity (3a) for supplying gas to the annular elastic rubber air cushion (4) is formed in the insulation A sleeve (3); a plurality of axially distributed installation grooves (3b) are formed in the outer sleeve wall of the insulation A sleeve (3), and a hook locking component (7) is arranged in each installation groove (3b); the hook locking component (7) comprises a sliding rod (71) fixedly installed in the installation groove (3b), and a hooking plate (73) is arranged on the sliding rod (71); a spring (74) is sleeved on the sliding rod (71); an annular protrusion (61) is arranged on one side of the insulation A sleeve (3) close to the inner threaded portion (21). The hook locking component (7) further comprises a sliding seat (72) sleeved on the sliding rod (71) and in sliding connection with the sliding rod (71); one end of the hooking plate (73) is in rotary connection with the sliding seat (72) through a rotary support, and the other end of the hooking plate (73) is fixedly embedded with a U-shaped hook (731) for hooking the annular protrusion (61).

2. The gas pipe insulating quick connector according to claim 1, characterized in that, One end of the spring (74) is fixedly connected with the end of the sliding seat (72) away from the outer threaded portion (11), and the other end of the spring (74) is fixedly connected with the inner wall of the installation groove (3b) away from the outer threaded portion (11).

3. A gas pipe insulating quick connector according to claim 2, characterised in that, A clamping groove (3c) is formed in the sleeve wall of the insulation A sleeve (3) close to the cover sleeve (31).

4. The gas pipe insulating quick connector according to claim 3, characterized in that, The outer ring wall of the annular elastic rubber air cushion (4) is fixedly embedded in the annular groove formed in the cover sleeve (31), and a gas guide pipe (32) for gas passage is arranged between the annular elastic rubber air cushion (4) and the annular gas storage cavity (3a).

5. The gas pipe insulating quick connector of claim 1, wherein, An annular piston (5) in sliding connection is arranged in the annular gas storage cavity (3a), and a middle connecting abutting pipe (51) is fixedly installed on the annular piston (5); the middle connecting abutting pipe (51) extends out of the annular gas storage cavity (3a) and is fixedly installed with a compression ring (52).

6. The gas pipe insulating quick connector according to claim 5, characterized in that, ​

Images