Gas pipe sealing connector for gas stove

Abstract

The utility model relates to the technical field of gas pipeline connecting devices, and discloses a gas pipe sealing interface for a gas stove, which comprises a movable joint and a fixed joint, one end of the outer wall of the movable joint is rotatably clamped with a movable sleeve used for being in threaded sleeve connection with the fixed joint, and one end of the outer wall of the fixed joint is fixedly sleeved with a connecting pipe. A sealing gasket used for sealing the connector is arranged on the inner side of the movable sleeve. According to the gas pipe sealing connector, the first spring in the movable connector pushes the first sealing plug to plug the first sealing ring, the second spring in the fixed connector pushes the second sealing plug to plug the second sealing ring, and therefore when the gas pipe sealing connector is detached and opened, pipelines on the two sides can be plugged; and gas remaining in the pipeline is prevented from being dissipated, and when the movable connector and the fixed connector are connected through the fixing rod, the first sealing plug and the second sealing plug are pushed, so that communication of gas conveying is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of gas pipeline connection devices, in particular to a gas pipe sealing interface for a gas stove. Background Art

[0002] A gas stove is a kitchen appliance that uses gas fuels such as liquefied petroleum gas, artificial coal gas, and natural gas for direct fire heating. During the use of the gas stove, a gas pipe sealing interface is required to connect the gas stove hose and the gas stove or to connect the gas stove fuel pipe and the gas inlet pipe. The existing gas pipe sealing interface usually includes a fixed joint and a movable joint. The outer side of the movable joint is rotated through an annular groove to sleeve a threaded sleeve, so that the threaded sleeve can rotate relative to the movable joint while driving the movable joint to move. The movable joint is fixed to the fixed joint through the threaded sleeve between the threaded sleeve and the fixed joint, and the sealing ring arranged on the inner side of the threaded sleeve is used to ensure the sealing of the joint between the fixed joint and the movable joint.

[0003] When gas equipment, gas pipes or gas pipe sealing interfaces become aged or damaged after long-term use, it is necessary to remove the connection of the gas pipeline and replace the aged or damaged equipment. After shutting off the gas transmission, since there is still gas in the pipes connected at both ends of the gas pipe sealing interface, the remaining gas will dissipate from the open interface, which can easily cause damage to maintenance personnel and waste some gas. Utility Model Content

[0004] In view of the shortcomings of the existing gas pipe interface mentioned in the background technology during use, the utility model provides a gas pipe sealing interface for a gas stove, which has the advantages of preventing the escape of retained gas and convenient and accurate connection, thus solving the technical problems raised in the above background technology.

[0005] The utility model provides the following technical solutions: a gas pipe sealing interface for a gas stove, comprising a movable joint and a fixed joint, one end of the outer wall of the movable joint is rotatably clamped with a movable sleeve for threaded sleeve connection with the fixed joint, one end of the outer wall of the fixed joint is fixedly sleeved with a connecting pipe, a sealing gasket for sealing the interface is arranged on the inner side of the movable sleeve, one end of the movable joint is fixedly sleeved with an adapted No. 1 sealing ring, a No. 1 sealing plug adapted to the No. 1 sealing ring is movably arranged on the inner side of the movable joint, a No. 1 fixing ring matched with the No. 1 sealing plug is arranged on the inner side of the movable joint, and a No. 1 fixing ring matched with the No. 1 sealing plug is fixedly connected to one side of the No. 1 fixing ring for providing elastic force to the No. 1 seal.

[0006] A matching No. 2 sealing ring is fixedly sleeved on one end of the fixing joint close to the inner wall, a No. 2 sealing plug matching the No. 2 sealing ring is movably arranged on the inner side of the fixing joint, a No. 2 fixing ring is fixedly connected to the inner side of the fixing joint, a No. 2 spring for providing elastic force to the No. 2 sealing plug is fixedly connected to one side of the No. 2 fixing ring, a fixing rod matching the No. 2 sealing plug is fixedly connected to one side of the No. 1 sealing plug, and the length of the fixing rod is greater than the minimum spacing between the No. 1 sealing ring and the No. 2 sealing ring.

[0007] Preferably, two guide rods for guiding the No. 1 sealing plug are fixedly provided on the inner side of the movable joint, the two guide rods are arranged parallel to the axial direction of the movable joint, and the guide rods are slidably connected to the No. 1 sealing plug.

[0008] Preferably, one side of the No. 1 sealing plug and the No. 2 sealing plug is configured as a frustum surface respectively matching the No. 1 fixing ring and the No. 2 fixing ring.

[0009] Preferably, the No. 1 fixing ring is fixedly connected to the guide rod, and a guide hole adapted to the fixing rod is provided on one side of the No. 2 sealing plug.

[0010] Preferably, two limit plates are fixedly connected to the middle of the fixing rod, and the two limit plates are symmetrically arranged about the center line of the fixing rod. The length of the limit plates in the axial direction of the movable joint is consistent with the minimum spacing between the No. 1 sealing ring and the No. 2 sealing ring.

[0011] Preferably, the height of the limiting plate in the radial direction of the movable joint is smaller than the distance between the inner wall of the movable joint and the fixing rod, and the inner diameter of the sealing gasket is not smaller than the inner diameter of the movable joint.

[0012] Preferably, one end of the inner wall of the fixed joint is fixedly connected to two guide blocks, and the guide blocks are provided with limiting grooves adapted to the limiting plates.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model cooperates with the No. 1 spring and the No. 1 fixing ring and the guide rod, and the No. 2 spring and the No. 2 fixing ring, so that when the movable joint and the fixed joint of the gas pipeline sealing interface are separated, the No. 1 sealing plug and the No. 2 sealing plug are pushed to respectively block the No. 1 sealing ring and the No. 2 sealing ring, thereby sealing the pipeline connected to the movable joint and the fixed joint. When the movable joint and the fixed joint are connected, the fixing rod pushes the No. 1 sealing plug and the No. 2 sealing plug apart, so that the movable joint and the fixed joint are connected. Then, under the condition of ensuring the connection performance of the gas pipeline sealing interface, when the gas pipeline sealing interface is disassembled and separated, it can prevent the gas retained in the pipeline from escaping into the air, causing harm to the maintenance personnel and wasting gas.

[0015] 2. The utility model uses a limit plate to cooperate with the No. 1 fixing ring and the No. 2 fixing ring after the movable joint and the fixed joint are connected to limit the movement of the fixing rod, thereby limiting the resetting of the No. 1 sealing plug and the No. 2 sealing plug during the use of the gas pipeline sealing interface, thereby improving the reliability of the use of the gas pipeline sealing interface. At the same time, the limit plate cooperates with the guide block and the limit groove to guide the movement of the movable sleeve when the movable joint is installed, thereby ensuring the accuracy of the threaded connection between the movable sleeve and the fixed joint, and limiting the rotation of the movable joint relative to the fixed joint, so that the installation of the gas pipeline sealing interface can be operated with one hand, which is convenient for the gas pipeline sealing interface to be carried out in a small space, thereby improving the convenience of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure combination state of the utility model;

[0017] Figure 2 For this utility model Figure 1 Schematic diagram of the structure separation state;

[0018] Figure 3 For this utility model Figure 2 Schematic diagram of the structural section in ;

[0019] Figure 4 For this utility model Figure 2 Schematic diagram of some structures in .

[0020] In the figure: 1. movable joint; 2. fixed joint; 3. movable sleeve; 4. connecting pipe; 5. fixing rod; 6. limit plate; 7. No. 1 sealing ring; 8. guide rod; 9. No. 1 fixing ring; 10. No. 1 spring; 11. No. 1 sealing plug; 12. sealing gasket; 13. No. 2 sealing ring; 14. No. 2 fixing ring; 15. No. 2 spring; 16. No. 2 sealing plug; 17. guide hole; 18. guide block; 19. limit groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 3A gas pipe sealing interface for a gas stove comprises a movable joint 1 and a fixed joint 2. One end of the outer wall of the movable joint 1 is rotatably clamped with a movable sleeve 3. The outer side of the movable joint 1 is provided with an annular groove for clamping the movable sleeve 3. One end of the movable sleeve 3 is embedded in the annular groove so that the movable sleeve 3 and the movable joint 1 are rotatably clamped. The movable sleeve 3 can rotate relative to the movable joint 1 and drive the movable joint 1 to move. One end of the outer wall of the fixed joint 2 is fixedly sleeved with a connecting pipe 4. The connecting pipe 4 is fixedly arranged on the pipe to be connected. The movable joint 1 is connected to the pipe to be connected. The outer side of the fixed joint 2 is provided with an external thread, and the inner side of the movable sleeve 3 is provided with an internal thread adapted to the external thread, so that the movable sleeve 3 can be threadedly sleeved with the fixed joint 2, thereby the fixed joint 2 and the movable joint 1 can be fixedly connected.

[0023] A sealing gasket 12 for sealing the interface is provided on the inner side of the movable sleeve 3. The inner diameter of the sealing gasket 12 is not less than the inner diameter of the movable joint 1. The outer diameter of the sealing gasket 12 is matched with the movable sleeve 3. As the movable sleeve 3 is screwed in, the sealing gasket 12 is squeezed by the fixed joint 2 and the movable joint 1. The sealing gasket 12 seals the joint between the movable joint 1 and the fixed joint 2. During the screwing-in process of the movable sleeve 3, it is necessary to keep the movable joint 1 from rotating with the movable sleeve 3 to ensure that the sealing gasket 12 is not deformed due to the relative rotation between the movable joint 1 and the fixed joint 2 while in contact with the sealing gasket 12, and to avoid the rotation of the pipe to be connected.

[0024] See also Figure 1-Figure 4 One end of the movable joint 1 is fixedly sleeved with an adapted No. 1 sealing ring 7, and a No. 1 sealing plug 11 adapted to the No. 1 sealing ring 7 is movably arranged on the inner side of the movable joint 1. The No. 1 sealing plug 11 can contact the No. 1 sealing ring 7 to seal the inner side of the No. 1 sealing ring 7, so as to seal one end of the movable joint 1. Two guide rods 8 for guiding the No. 1 sealing plug 11 are fixedly arranged on the inner side of the movable joint 1. The two guide rods 8 are arranged parallel to the axial direction of the movable joint 1. The guide rods 8 are slidably connected with the No. 1 sealing plug 11, and a No. 1 fixing ring 9 is fixedly connected between the two guide rods 8. A No. 1 spring 10 matching the No. 1 sealing plug 11 is fixedly connected to one side of the No. 1 fixing ring 9. The No. 1 spring 10 is fixedly connected to the No. 1 sealing plug 11, and the No. 1 spring 10 cooperates with the No. 1 fixing ring 9 to provide the No. 1 sealing plug 11 with an elastic force to move toward the No. 1 sealing ring 7.

[0025] One end of the fixed joint 2 close to the inner wall is fixedly sleeved with a matching No. 2 sealing ring 13, and a No. 2 sealing plug 16 matching the No. 2 sealing ring 13 is movably provided on the inner side of the fixed joint 2. The No. 2 sealing plug 16 can cooperate with the No. 2 sealing ring 13 to seal the inner side of the fixed joint 2. A No. 2 fixing ring 14 is fixedly connected to the inner side of the fixed joint 2, and a No. 2 spring 15 matching the No. 2 sealing plug 16 is fixedly connected to one side of the No. 2 fixing ring 14. The No. 2 spring 15 cooperates with the No. 2 fixing ring 14 to provide elastic force to the No. 2 sealing plug 16 to move toward the No. 2 sealing ring 13.

[0026] One side of the No. 1 sealing plug 11 is fixedly connected with a fixing rod 5 that cooperates with the No. 2 sealing plug 16. A guide hole 17 that is compatible with the fixing rod 5 is opened on one side of the No. 2 sealing plug 16. When the movable sleeve 3 is screwed in, it drives the movable joint 1 to move. The movable joint 1 cooperates with the No. 1 fixing ring 9, the No. 1 spring 10 and the No. 1 sealing plug 11 to drive the fixing rod 5 to move toward the No. 2 sealing plug 16, so that one end of the fixing rod 5 is embedded in the guide hole 17. The fixing rod 5 continues to move, and the distance between the No. 2 sealing plug 16 and the No. 1 sealing plug 11 continues to decrease. The No. 2 sealing plug 16 is pushed away from the No. 2 sealing ring 13 by the fixing rod 5. The fixing rod 5 drives the No. 1 sealing plug 11 to leave the No. 1 sealing ring 7 due to the reaction force until the movable sleeve 3 is completely screwed in. At this time, the movable joint 1 and the fixed joint 2 are connected.

[0027] When the movable joint 1 is removed, the No. 1 spring 10 and the No. 2 spring 15 push the No. 1 sealing plug 11 and the No. 2 sealing plug 16 to reset respectively, and respectively seal the pipeline on one side of the movable joint 1 and the pipeline on one side of the fixed joint 2 to prevent the gas retained in the pipeline from escaping. During the movement of the No. 2 sealing plug 16, the guide hole 17 cooperates with the fixing rod 5 to guide the movement of the No. 2 sealing plug 16. The length of the fixing rod 5 is greater than the minimum spacing between the No. 1 sealing ring 7 and the No. 2 sealing ring 13, ensuring that the No. 1 sealing plug 11 and the No. 2 sealing plug 16 can be pushed open. Two limit plates 6 are fixedly connected to the middle part of the fixing rod 5, and the two limit plates 6 are symmetrically arranged about the center line of the fixing rod 5.

[0028] The length of the limit plate 6 in the axial direction of the movable joint 1 is consistent with the minimum spacing between the No. 1 sealing ring 7 and the No. 2 sealing ring 13, and the height of the limit plate 6 in the radial direction of the movable joint 1 is less than the spacing between the inner wall of the movable joint 1 and the fixed rod 5, so as to ensure that the two sides of the limit plate 6 are in contact with the No. 1 sealing ring 7 and the No. 2 sealing ring 13 respectively without affecting the screwing-in of the movable sleeve 3, so as to ensure the pushing distance of the No. 1 sealing plug 11 and the No. 2 sealing plug 16, so as to avoid that one of the No. 1 sealing plug 11 and the No. 2 sealing plug 16 is pushed, while the other one does not move or moves too small due to the inconsistent retraction distance of the No. 1 spring 10 and the No. 2 spring 15, or does not move or moves too small due to the push of the gas pressure after the gas is introduced, thereby affecting the normal transportation of the gas.

[0029] One end of the inner wall of the fixed joint 2 is fixedly connected to two guide blocks 18, and the two guide blocks 18 are respectively matched with two limit plates 6. The guide block 18 is provided with a limit groove 19 adapted to the limit plate 6, and the limit plate 6 can be embedded in the limit groove 19 and slide relative to the limit plate 6. On the one hand, the movement of the movable sleeve 3 is guided and positioned to ensure the accuracy of the threaded connection between the movable sleeve 3 and the fixed joint 2. On the other hand, the limit plate 6 cooperates with the limit groove 19, the fixed rod 5, the No. 1 sealing plug 11 and the guide rod 8 to limit the rotation of the movable joint 1 relative to the fixed joint 2, so that the installation of the gas pipe sealing interface can be completed by one hand, and there is no need for the maintenance personnel to hold the movable joint 1 with one hand and screw in the movable sleeve 3 with the other hand, which is convenient for installation in a small space.

[0030] The usage (working principle) of the utility model is as follows:

[0031] When the gas pipeline sealing interface is installed, the limit plate 6 is aligned and embedded in the limit groove 19, and the guide block 18 cooperates with the limit groove 19 to guide the movement of the movable sleeve 3 to ensure the accuracy of the threaded connection between the movable sleeve 3 and the fixed joint 2. The movable sleeve 3 is rotated to drive the movable joint 1 to move, and the limit plate 6 cooperates with the limit groove 19, the fixed rod 5, the No. 1 sealing plug 11 and the guide rod 8 to limit the rotation of the movable joint 1 relative to the fixed joint 2. The movable joint 1 cooperates with the No. 1 fixing ring 9, the No. 1 spring 10 and the No. 1 sealing plug 11 to drive the fixed rod 5 to move toward the No. 2 sealing plug 16, so that the distance between the No. 1 sealing plug 11 and the No. 2 sealing plug 16 is reduced, and the No. 1 sealing plug 11 and the No. 2 sealing plug 16 move away in opposite directions.

[0032] The limit plate 6 restricts the rebound of the No. 1 sealing plug 11 and the No. 2 sealing plug 16 when the gas pipeline sealing interface is connected. When the gas pipeline sealing interface is removed, the No. 1 spring 10 and the No. 2 spring 15 respectively push the No. 1 sealing plug 11 and the No. 2 sealing plug 16 to reset, and cooperate with the No. 1 sealing ring 7 and the No. 2 sealing ring 13 to seal the opening of the pipeline to prevent the gas retained in the pipeline from escaping into the air.

Claims

1. A gas pipe sealing interface for a gas stove, comprising a movable joint (1) and a fixed joint (2), wherein one end of the outer wall of the movable joint (1) is rotatably connected with a movable sleeve (3) for threaded sleeve connection with the fixed joint (2), one end of the outer wall of the fixed joint (2) is fixedly sleeved with a connecting pipe (4), and a sealing gasket (12) for sealing the interface is arranged on the inner side of the movable sleeve (3), characterized in that: One end of the movable joint (1) is fixedly sleeved with a matching No. 1 sealing ring (7), the inner side of the movable joint (1) is movably provided with a No. 1 sealing plug (11) matching with the No. 1 sealing ring (7), the inner side of the movable joint (1) is provided with a No. 1 fixing ring (9) matching with the No. 1 sealing plug (11), and one side of the No. 1 fixing ring (9) is fixedly connected with a No. 1 spring (10) for providing elastic force to the No. 1 sealing plug (11); A second sealing ring (13) is fixedly sleeved on one end of the fixed joint (2) close to the inner wall, and a second sealing plug (16) adapted to the second sealing ring (13) is movably arranged on the inner side of the fixed joint (2). A second fixing ring (14) is fixedly connected to the inner side of the fixed joint (2), and a second spring (15) for providing elastic force to the second sealing plug (16) is fixedly connected to one side of the second fixing ring (14). A fixing rod (5) matched with the second sealing plug (16) is fixedly connected to one side of the first sealing plug (11), and the length of the fixing rod (5) is greater than the minimum spacing between the first sealing ring (7) and the second sealing ring (13).

2. A gas pipe sealing interface for a gas stove according to claim 1, characterized in that: Two guide rods (8) for guiding the No. 1 sealing plug (11) are fixedly arranged on the inner side of the movable joint (1), and the two guide rods (8) are arranged parallel to the axial direction of the movable joint (1), and the guide rods (8) are slidably connected to the No. 1 sealing plug (11).

3. The gas pipe sealing interface for a gas stove according to claim 1, characterized in that: One side of the No. 1 sealing plug (11) and the No. 2 sealing plug (16) is configured as a round table surface respectively matching the No. 1 fixing ring (9) and the No. 2 fixing ring (14).

4. A gas pipe sealing interface for a gas stove according to claim 2, characterized in that: The first fixing ring (9) is fixedly connected to the guide rod (8), and a guide hole (17) adapted to the fixing rod (5) is provided on one side of the second sealing plug (16).

5. The gas pipe sealing interface for a gas stove according to claim 2, characterized in that: Two limit plates (6) are fixedly connected to the middle of the fixed rod (5), and the two limit plates (6) are symmetrically arranged about the center line of the fixed rod (5). The length of the limit plates (6) in the axial direction of the movable joint (1) is consistent with the minimum spacing between the first sealing ring (7) and the second sealing ring (13).

6. A gas pipe sealing interface for a gas stove according to claim 5, characterized in that: The height of the limiting plate (6) in the radial direction of the movable joint (1) is smaller than the distance between the inner wall of the movable joint (1) and the fixing rod (5), and the inner diameter of the sealing pad (12) is not smaller than the inner diameter of the movable joint (1).

7. A gas pipe sealing interface for a gas stove according to claim 5, characterized in that: Two guide blocks (18) are fixedly connected to one end of the inner wall of the fixed joint (2), and the guide blocks (18) are provided with limit grooves (19) adapted to the limit plates (6).

Images