Sealing connection assembly for natural gas pipeline

Abstract

The utility model belongs to the technical field of natural gas, and particularly relates to a sealing connecting assembly for a natural gas pipeline, which solves the problems of poor stability and low use precision in the prior art, and comprises a sealing connecting mechanism, an adjusting mechanism and a connecting sleeve, the inner tooth bevel gear is rotatably mounted in the connecting sleeve, three rotating shafts which are circumferentially and uniformly distributed are rotatably mounted in the connecting sleeve, one end of each rotating shaft is fixedly connected with a threaded rod, and a connecting block is arranged on the peripheral surface of each threaded rod in a threaded and sleeving manner. The connecting sleeve sleeves the connecting position of the first connecting pipe and the second connecting pipe through the connecting male head and the connecting female head and the connecting hook, then the rotating button is rotated, the connecting block extends out to be fixed, and then the plugging block is connected and fixedly sealed, so that the use stability is improved.

Description

Technical Field

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

[0002] At present, the sealing connection component for natural gas pipeline is a component specially designed for natural gas pipeline connection, and its main function is to ensure the sealing of the pipeline connection and prevent gas leakage.

[0003] The prior art has a natural gas pipeline sealing connection device with the authorization announcement number CN208090107U, which includes a natural gas pipeline, a fixed ring, an internal thread ring, an external thread ring, a double thread ring, a fixed cover and a first sealing ring. Through the engagement of the gear shaft and the gear, the gear shaft is rotated with a crank to rotate the movable pipe, the fixed cover and the double thread ring and translate to the left, and at the same time, the double thread ring is threadedly sleeved with the internal thread ring and the external thread ring. This design simplifies the connection steps of the natural gas pipeline and effectively improves the efficiency of pipeline assembly.

[0004] However, this patent uses threads for internal connection, which has poor stability during use. This patent cannot control the flow of natural gas during use and has low accuracy.

[0005] The prior art has a patent number of CN220102374U for a natural gas pipeline sealing connection assembly. The patent includes an adjustment assembly, a connection tube, a pressure diversion assembly, a threaded connection pipe, an adjustment plate, a fitting groove rail, an adjustment limit ring, a buckle plate and a threaded adjustment rod. By connecting two sections of natural gas pipelines, automatic diversion is achieved to reduce the impact of pipeline pressure. The assembly can open the connection position according to the gas pressure flow rate, which is suitable for occasions where diversion is required. The assembly simplifies the connection process of the natural gas pipeline and improves the flexibility and efficiency of the pipeline system.

[0006] However, this patent also has unstable usage. Utility Model Content

[0007] The utility model aims to provide a sealing connection assembly for a natural gas pipeline, which solves the problems of poor stability and low use precision.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sealing connection assembly for a natural gas pipeline, comprising a sealing connection mechanism, an adjustment mechanism and a connecting sleeve, the sealing connection mechanism comprising an internal bevel gear, the internal bevel gear is rotatably mounted inside the connecting sleeve, three rotating shafts with uniform circumference are rotatably mounted inside the connecting sleeve, one end of the rotating shaft is fixedly connected to a threaded rod, a connecting block is threadedly sleeved on the outer circumference of the threaded rod, an active bevel gear is fixedly sleeved on the outer circumference of the rotating shaft, and the three active bevel gears are all meshed with the internal bevel gear, a sliding block is slidably assembled inside the rotating shaft, a knob is fixedly connected to one end of the sliding block, a first connecting pipe and a second connecting pipe are slidably assembled inside the connecting sleeve, a first auxiliary block is fixedly sleeved on the outer circumference of the first connecting pipe, a connecting male joint is movably sleeved on the outer circumference of the first connecting pipe, a second auxiliary block is fixedly sleeved on the outer circumference of the second connecting pipe, a connecting female joint is movably sleeved on the outer circumference of the second auxiliary block, two symmetrically arranged threaded joints are threadedly mounted on the inner thread of the connecting sleeve, and a blocking block is fixedly connected to one end of the threaded joint.

[0009] Preferably, the adjustment mechanism includes two symmetrically arranged straight shafts, which are rotatably installed inside the first connecting pipe and the second connecting pipe respectively, one end of the straight shaft is fixedly connected to a turntable, and the other end of the straight shaft is fixedly connected to a ball valve.

[0010] Preferably, two symmetrically arranged plug-in slots are provided inside the connecting sleeve, and the two knobs are respectively slidably connected inside the two plug-in slots, and the plug-in slots are used for the sliding plugging of the knobs.

[0011] Preferably, six symmetrically arranged sliding grooves are provided inside the connecting sleeve, and the six connecting blocks are respectively slidably connected inside the six sliding grooves, and the sliding grooves are used for the sliding of the connecting blocks.

[0012] Preferably, the two rotating shafts are provided with limiting grooves inside, and the two sliding blocks are slidably connected inside the two limiting grooves respectively, and the limiting grooves are used for the sliding of the sliding blocks.

[0013] Preferably, a rotation groove is provided inside the first connecting pipe and the second connecting pipe, and the two straight shafts are rotatably installed inside the two rotation grooves respectively, and the rotation grooves are used for the rotation of the straight shafts.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model arranges the blocking block, the connecting block and other structures. The first connecting pipe and the second connecting pipe are connected by connecting the male head and the female head connecting hook, and the connecting sleeve is put on the connecting part of the first connecting pipe and the second connecting pipe. Then the knob is turned to extend the connecting block for fixing. Then the blocking block is connected to fix and seal it, thereby improving its stability in use.

[0016] 2. The utility model provides structures such as a turntable and a ball valve. When the equipment is used, the turntable can be adjusted according to demand. The rotation of the turntable drives the ball valve to rotate. The rotation of the ball valve limits the flow rate of the gas, thereby improving the accuracy of its use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a connection diagram of the first connecting pipe and the second connecting pipe of the utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure of the first connecting pipe of the utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the second connecting pipe of the utility model;

[0021] Figure 5 This is a schematic diagram of the overall structure of the connecting sleeve of the utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the connecting sleeve of the utility model;

[0023] Figure 7 It is a schematic diagram of the overall structure of the threaded joint of the utility model;

[0024] Figure 8 It is a schematic diagram of the overall structure of the adjustment mechanism of the utility model.

[0025] In the figure: 1, sealing connection mechanism; 11, first connecting pipe; 111, first auxiliary block; 112, connecting male joint; 12, second connecting pipe; 121, second auxiliary block; 122, connecting female joint; 13, connecting sleeve; 131, blocking block; 132, threaded joint; 14, rotating shaft; 141, sliding block; 142, knob; 143, active bevel gear; 144, threaded rod; 145, connecting block; 146, internal bevel gear;

[0026] 2. Adjusting mechanism; 21. Straight shaft; 211. Turntable; 212. Ball valve. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-8 A sealing connection assembly for a natural gas pipeline includes a sealing connection mechanism 1, an adjustment mechanism 2 and a connection sleeve 13. The sealing connection mechanism 1 includes an internal bevel gear 146, which is rotatably mounted inside the connection sleeve 13. Three rotating shafts 14 evenly distributed on the circumference are rotatably mounted inside the connection sleeve 13. A threaded rod 144 is fixedly connected to one end of the rotating shaft 14. A connecting block 145 is threadedly sleeved on the outer circumference of the threaded rod 144. An active bevel gear 143 is fixedly sleeved on the outer circumference of the rotating shaft 14. The three active bevel gears 143 are all meshed with the internal bevel gear 146. A sliding block 141 is slidably mounted inside the rotating shaft 14. A knob 142 is fixedly mounted at one end of the sliding block 141. A first connecting pipe 11 and a second connecting pipe 12 are slidably mounted inside the connection sleeve 13. The outer circumference of the first connecting pipe 11 is fixedly sleeved with a connecting block 145. An active bevel gear 143 is fixedly sleeved on the outer circumference of the rotating shaft 14. The three active bevel gears 143 are all meshed with the internal bevel gear 146. A sliding block 141 is slidably mounted inside the rotating shaft 14. A knob 142 is fixedly mounted at one end of the sliding block 141. A first connecting pipe 11 and a second connecting pipe 12 are slidably mounted inside the connection sleeve 13. A first auxiliary block 111 is fixedly sleeved on the surface, a connecting male joint 112 is movably sleeved on the outer circumferential surface of the first connecting pipe 11, a second auxiliary block 121 is fixedly sleeved on the outer circumferential surface of the second connecting pipe 12, a connecting female joint 122 is movably sleeved on the outer circumferential surface of the second auxiliary block 121, and two symmetrically arranged threaded joints 132 are installed on the internal thread of the connecting sleeve 13, and one end of the threaded joint 132 is fixedly connected to a blocking block 131. Through the arrangement of structures such as the blocking block 131 and the connecting block 145, the connecting sleeve 13 is sleeved on the connection between the first connecting pipe 11 and the second connecting pipe 12 through the connecting male head and the connecting female head connecting hook, and then the knob 142 is rotated to make the connecting block 145 extend out for fixing, and then the blocking block 131 is connected to fix and seal it, so as to improve its stability in use.

[0029] See also Figure 1-8 The regulating mechanism 2 includes two symmetrically arranged straight shafts 21, which are rotatably installed inside the first connecting pipe 11 and the second connecting pipe 12 respectively. A turntable 211 is fixedly connected to one end of the straight shaft 21, and a ball valve 212 is fixedly connected to the other end of the straight shaft 21. Through the arrangement of the turntable 211, the ball valve 212 and other structures, when the equipment is used, the turntable 211 can be adjusted according to demand, and the rotation of the turntable 211 drives the ball valve 212 to rotate. The rotation of the ball valve 212 limits the flow rate of the gas, thereby improving the accuracy of its use.

[0030] See also Figure 1-8Two symmetrically arranged plug-in grooves are provided inside the connecting sleeve 13, and the two knobs 142 are respectively slidably connected inside the two plug-in grooves. Six symmetrically arranged sliding grooves are provided inside the connecting sleeve 13, and the six connecting blocks 145 are respectively slidably connected inside the six sliding grooves. Limiting grooves are provided inside the two rotating shafts 14, and the two sliding blocks 141 are respectively slidably connected inside the two limiting grooves. Rotation grooves are provided inside the first connecting pipe 11 and the second connecting pipe 12, and the two straight shafts 21 are respectively rotatably installed inside the two rotating grooves.

[0031] The specific implementation process of the utility model is as follows: when connection is required, the connecting male connector 112 on the first connecting pipe 11 is connected to the connecting female connector 122 on the second connecting pipe 12. When connecting, the first auxiliary block 111 and the second auxiliary block 121 can be used to pick it up to assist in its connection. After the connection is completed, the connecting sleeve 13 is put on the connecting part of the first connecting pipe 11 and the second connecting pipe 12, and then the two knobs 142 are rotated. The rotation of the knob 142 drives the sliding block 141 to rotate, and the sliding block 141 drives the rotating shaft 14 to rotate. The outer peripheral surface of the rotating shaft 14 is provided with a sealing sleeve. The rotation of the rotating shaft 14 drives one of the active bevel gears 143 to rotate. When the active bevel gear 143 rotates, the bevel gear 146 with internal teeth rotates. The bevel gear 146 rotates to drive the other two rotating shafts 14 to rotate. The rotation of the three rotating shafts 14 drives the threaded rod 144 to rotate at the same time. The rotation of the threaded rod 144 drives the connecting block 145 to extend. When the connecting block 145 extends, the outer circumferential surface of the first connecting pipe 11 and the second connecting pipe 12 is clamped. After the clamping is completed, the sliding block 141 is pushed into the rotating shaft 14. The sliding block 141 slides and drives the knob 142 to clamp into the inside of the plug-in slot to limit it. After the connecting sleeve 13 is fixed, the blocking block 131 is connected to the connecting sleeve 13 through the threaded joint 132. The circular groove inside the blocking block 131 can be changed according to the size requirements of the first connecting pipe 11 and the second connecting pipe 12, so as to fix and seal them and improve their stability in use.

[0032] Furthermore, when the device is in use, the turntable 211 can be adjusted according to the required flow rate. When the turntable 211 rotates, it drives the straight shaft 21 to rotate. When the straight shaft 21 rotates, it drives the ball valve 212 to rotate. The rotation of the ball valve 212 can control the flow rate and improve the accuracy of its use.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing connection assembly for a natural gas pipeline, comprising a sealing connection mechanism (1), an adjustment mechanism (2) and a connection sleeve (13), characterized in that: The sealing connection mechanism (1) comprises an internal bevel gear (146), the internal bevel gear (146) being rotatably mounted inside the connecting sleeve (13), three circumferentially evenly distributed rotating shafts (14) being rotatably mounted inside the connecting sleeve (13), one end of the rotating shaft (14) being fixedly connected to a threaded rod (144), a connecting block (145) being threadedly sleeved on the outer circumference of the threaded rod (144), an active bevel gear (143) being fixedly sleeved on the outer circumference of the rotating shaft (14), the three active bevel gears (143) all being meshed with the internal bevel gear (146), a sliding block (141) being slidably mounted inside the rotating shaft (14), the sliding block (141) being One end is fixedly connected with a knob (142); the interior of the connecting sleeve (13) is slidably equipped with a first connecting pipe (11) and a second connecting pipe (12); a first auxiliary block (111) is fixedly sleeved on the outer circumference of the first connecting pipe (11); a connecting male joint (112) is movably sleeved on the outer circumference of the first connecting pipe (11); a second auxiliary block (121) is fixedly sleeved on the outer circumference of the second connecting pipe (12); a connecting female joint (122) is movably sleeved on the outer circumference of the second auxiliary block (121); the internal thread of the connecting sleeve (13) is equipped with two symmetrically arranged threaded joints (132); one end of the threaded joint (132) is fixedly connected with a blocking block (131).

2. A sealing connection assembly for a natural gas pipeline according to claim 1, characterized in that: The regulating mechanism (2) comprises two symmetrically arranged straight shafts (21), the two straight shafts (21) being rotatably mounted inside the first connecting pipe (11) and the second connecting pipe (12), respectively; one end of the straight shaft (21) is fixedly connected to a rotating disk (211), and the other end of the straight shaft (21) is fixedly connected to a ball valve (212).

3. A sealing connection assembly for a natural gas pipeline according to claim 1, characterized in that: The connection sleeve (13) has two symmetrically arranged plug-in slots disposed therein, and the two rotating knobs (142) are respectively slidably connected to the inside of the two plug-in slots.

4. A sealing connection assembly for a natural gas pipeline according to claim 1, characterized in that: The connection sleeve (13) is provided with six symmetrically arranged sliding grooves inside, and the six connection blocks (145) are respectively slidably connected inside the six sliding grooves.

5. A sealing connection assembly for a natural gas pipeline according to claim 1, characterized in that: The two rotating shafts (14) are each provided with a limiting groove inside, and the two sliding blocks (141) are respectively slidably connected inside the two limiting grooves.

6. A sealing connection assembly for a natural gas pipeline according to claim 2, characterized in that: The first connecting pipe (11) and the second connecting pipe (12) are both provided with a rotation groove inside, and the two straight shafts (21) are rotatably mounted inside the two rotation grooves respectively.

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