Connecting structure applied to gas pipe sinking

Abstract

The utility model belongs to the field of gas pipelines, and particularly relates to a connecting structure applied to gas pipe sinking, which comprises two connecting pipes, and flanges are fixedly connected to the end parts of the two connecting pipes; a pipe seat and a ball seat are arranged between the two connecting pipes, the end of the pipe seat and the end of the ball seat are fixedly connected with the two connecting pipes respectively, a spherical cavity is formed in the pipe seat, the ball seat is connected into the spherical cavity in a buckled and rolling mode, a connecting cavity is formed in the ball seat, and the connecting cavity is communicated with the spherical cavity. By rotating the ball seat, the ball seat can rotate in the spherical cavity in the pipe seat, and when the angle between the pipelines has certain deviation, a worker can adjust the angle between the two connecting pipes, so that the end parts of the connecting pipes are aligned with the gas pipelines; therefore, a worker can conveniently connect the two gas pipelines.

Description

Technical Field

[0001] The utility model relates to the field of gas pipelines, in particular to a connection structure used for sinking gas pipes. Background Art

[0002] Gas pipelines, especially natural gas pipelines, refer to pipelines that transport natural gas (including associated gas produced in oil fields) from mining sites or processing plants to urban gas distribution centers or industrial enterprise users, also known as gas transmission pipelines.

[0003] In the current existing technology, gas pipelines are generally connected by welding or flange connection. When the gas pipeline needs to be turned, the gas pipelines are connected by connecting elbows. Flanges are installed at both ends of the connecting elbow and fixed to the gas pipeline through the flanges. Flange connection has the advantages of easy installation and easy disassembly.

[0004] However, during long-term use, the gas pipes buried underground will sink to a certain extent, which will cause the angles between the gas pipes to shift. The existing connecting elbows are integrally formed and their angles cannot be adjusted, making it inconvenient for workers to repair and connect the gas pipes. Therefore, in order to solve the above problem, a connection structure for sinking gas pipes is proposed. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve at least one technical problem raised in the background art, the present invention proposes a connection structure for sinking a gas pipe.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a connection structure for sinking a gas pipe, comprising two connecting pipes, both ends of the connecting pipes being fixedly connected with flanges; a pipe seat and a ball seat are provided between the two connecting pipes, the ends of the pipe seat and the ball seat being fixedly connected to the two connecting pipes respectively, a spherical cavity is provided inside the pipe seat, the ball seat is buckled and rollingly connected inside the spherical cavity, a connecting cavity is provided inside the ball seat, and the connecting cavity and the spherical cavity are communicated.

[0007] Preferably, the connecting pipe includes an inner pipe and an outer pipe, the two inner pipes are fixed to the ends of the pipe seat and the ball seat respectively, the inner pipe is inserted into the interior of the outer pipe and slidably connected thereto, and the end of the outer pipe is fixed to the flange.

[0008] Preferably, a first rubber ring is installed on the outer tube, and the first rubber ring is sleeved on the surface of the inner tube. A pair of second rubber rings are installed on the side wall of the spherical cavity, and the second rubber rings are sleeved on the surface of the ball seat.

[0009] Preferably, an annular seat is fixedly connected to one end of the outer tube close to the inner tube, the annular seat sleeve is arranged on the inner tube, a plurality of screw sleeves are fixedly connected to the annular seat, the middle part of the screw sleeve is threadedly connected to a bolt, and the end of the bolt is inserted into the interior of the annular seat.

[0010] Preferably, an annular cavity is provided inside the tube seat, a ring body is rotatably connected in the annular cavity, a plurality of sliding holes are provided on the side of the annular cavity, the plurality of sliding holes are distributed in an annular array, a fixing pin is slidably connected in the plurality of sliding holes, a plurality of trapezoidal blocks are fixed to the side of the ring body close to the fixing pin, and a driving component that can drive the ring body to rotate is provided on the side of the annular cavity.

[0011] Preferably, the drive assembly includes a worm wheel and a worm, the worm is rotatably connected to the side of the annular cavity, the worm wheel is fixed to the outer surface of the ring body, the worm and worm wheel are meshed with each other, and the end of the worm is fixed with a hexagonal screw handle.

[0012] Preferably, a plurality of clamps are sleeved on the surfaces of the two outer tubes, and the two clamps are detachably fixed by fasteners. A rubber sealing sleeve is sleeved on the outer tube, and the clamps are sleeved on the rubber sealing sleeve.

[0013] Preferably, a glue injection tube is fixedly connected to the rubber sealing sleeve, and the glue injection tube is communicated with the interior of the rubber sealing sleeve.

[0014] The utility model is beneficial in that:

[0015] 1. The utility model is provided with a connecting pipe, a flange, a ball seat and a pipe seat. During installation, the connecting pipe is fixed to the end of the fuel pipe by the flange. Afterwards, the ball seat can be rotated to rotate inside the spherical cavity inside the pipe seat. When the angle between the pipes is offset to a certain extent, the staff can adjust the angle between the two connecting pipes so that the end of the connecting pipe is aligned with the gas pipe, thereby making it convenient for the staff to connect the two gas pipes.

[0016] 2. The utility model provides a first rubber ring and a second rubber ring. When in use, the first rubber ring can seal the connection between the outer tube and the inner tube, thereby reducing gas leakage. The second rubber ring is used to seal between the spherical cavity and the ball seat, thereby reducing gas leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the tube seat of the present utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the ring body of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of the rubber sealing sleeve of the present utility model.

[0023] In the figure: 11, pipe seat; 12, flange; 13, spherical cavity; 14, ball seat; 15, connecting cavity; 21, inner tube; 22, outer tube; 31, first rubber ring; 32, second rubber ring; 41, annular seat; 42, screw sleeve; 43, bolt; 51, annular cavity; 52, fixing pin; 53, sliding hole; 54, ring body; 55, trapezoidal block; 61, worm; 62, worm gear; 63, hexagonal screw handle; 71, clamp; 72, rubber sealing sleeve; 8, injection hose. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Specific examples are given below.

[0026] See also Figure 1-3As shown, a connection structure for sinking a gas pipe comprises two connecting pipes, the ends of the two connecting pipes are fixedly connected with flanges 12; a pipe seat 11 and a ball seat 14 are provided between the two connecting pipes, the ends of the pipe seat 11 and the ball seat 14 are fixedly connected to the two connecting pipes respectively, a spherical cavity 13 is provided inside the pipe seat 11, the ball seat 14 is buckled and rolled inside the spherical cavity 13, a connecting cavity 15 is provided inside the ball seat 14, and the connecting cavity 15 is connected to the spherical cavity 13; during installation, the connecting pipe relies on the flange 12 to connect with the gas pipe The end of the pipeline is installed and fixed, and then the ball seat 14 can be rotated to make the ball seat 14 rotate inside the spherical cavity 13 inside the pipe seat 11. When the angle between the pipelines has a certain offset, the staff can adjust the angle between the two connecting pipes so that the end of the connecting pipe is aligned with the gas pipeline. Therefore, it is convenient for the staff to connect the two gas pipelines, thereby facilitating the use of personnel. During actual installation, the end of the connecting pipe can also be connected to the gas pipeline by reconnecting the elbow to meet the requirements of the installation angle.

[0027] Further, such as Figure 1-2 As shown, the connecting pipe includes an inner tube 21 and an outer tube 22. The two inner tubes 21 are respectively fixed to the ends of the tube seat 11 and the ball seat 14. The inner tube 21 is inserted into the interior of the outer tube 22 and slidably connected thereto. The end of the outer tube 22 is fixed to the flange 12. In this embodiment, the connecting pipe is composed of an inner tube 21 and an outer tube 22. The outer tube 22 can be telescopically slid on the inner tube 21 to adjust the length, thereby facilitating connection and installation with the pipeline, thereby making it convenient for staff to use.

[0028] Further, such as Figure 2-3 As shown, a first rubber ring 31 is installed on the outer tube 22, and the first rubber ring 31 is sleeved on the surface of the inner tube 21. A pair of second rubber rings 32 are installed on the side wall of the spherical cavity 13, and the second rubber rings 32 are sleeved on the surface of the ball seat 14. When in use, the first rubber ring 31 can be used to seal the connection between the outer tube 22 and the inner tube 21, thereby reducing gas leakage. The second rubber ring 32 is used to seal between the spherical cavity 13 and the ball seat 14, thereby reducing gas leakage.

[0029] Further, such as Figure 2-4As shown, the outer tube 22 is fixedly connected to an annular seat 41 at one end close to the inner tube 21, and the annular seat 41 is sleeved on the inner tube 21. A plurality of screw sleeves 42 are fixedly connected to the annular seat 41. The middle part of the screw sleeve 42 is threadedly connected to a bolt 43, and the end of the bolt 43 is inserted into the interior of the annular seat 41; an annular cavity 51 is opened inside the tube seat 11, and a ring body 54 is rotatably connected to the annular cavity 51. A plurality of sliding holes 53 are opened on the side of the annular cavity 51, and the plurality of sliding holes 53 are arranged in an annular array. Distribution, multiple sliding holes 53 are slidably connected with fixed pins 52, and a plurality of trapezoidal blocks 55 are fixedly connected to the side of the ring body 54 close to the fixed pin 52. A driving assembly that can drive the ring body 54 to rotate is provided on the side of the annular cavity 51; the driving assembly includes a worm wheel 62 and a worm 61, the worm 61 is rotatably connected to the side of the annular cavity 51, the worm wheel 62 is fixed to the outer surface of the ring body 54, the worm 61 and the worm wheel 62 are meshed with each other, and the end of the worm 61 is fixed with a hexagonal screw handle 63;

[0030] In this embodiment, the staff can rotate the bolt 43 so that the end of the bolt 43 rests on the surface of the inner tube 21, thereby fixing the outer tube 22 and the inner tube 21. Then the staff rotates the hexagonal screw handle 63 with a wrench, thereby driving the worm 61 to rotate. The rotation of the worm 61 drives the worm gear 62 and the ring body 54 to rotate inside the annular cavity 51, and then the ring body 54 drives the multiple trapezoidal blocks 55 to move. Then the trapezoidal blocks 55 squeeze the fixing pin 52, so that the end of the fixing pin 52 rests on the surface of the ball seat 14, thereby fixing the ball seat 14, thereby reducing the shaking between the tube seat 11 and the ball seat 14 caused by the vibration generated when the upper vehicle is running, thereby improving the stability of the connection.

[0031] Further, such as Figure 1 and 5 As shown, a plurality of clamps 71 are sleeved on the surfaces of the two outer tubes 22. The two clamps 71 are detachably fixedly connected by fasteners. A rubber sealing sleeve 72 is sleeved on the outer tube 22. The clamps 71 are sleeved on the rubber sealing sleeve 72. A glue injection tube 8 is fixedly connected to the rubber sealing sleeve 72. The glue injection tube 8 and the interior of the rubber sealing sleeve 72 are connected.

[0032] In this embodiment, a rubber sealing sleeve 72 is also provided on the outer tube 22. After the gas pipeline is installed and fixed to the flange 12 of the outer tube 22, the rubber sealing sleeve 72 is pulled to wrap it around the tube seat 11. Then, the two ends of the rubber sealing sleeve 72 are fixed to the outer tube 22 by clamps 71. The clamps 71 are fixed with fasteners. Relying on the above arrangement, the connection between the outer tube 22, the inner tube 21, the tube seat 11 and the ball seat 14 can be isolated from the outside, thereby isolating it from the external environment, thereby reducing the leakage of the connection caused by rain corrosion. Furthermore, the staff can use a glue gun to inject glue from the glue injection tube 8 into the inside, and rely on the glue to solidify inside the rubber sealing sleeve 72, which can improve the sealing effect and ensure the sealing effect of the connection.

[0033] Working principle: During installation, the connecting pipe is fixed to the end of the fuel pipe by the flange 12, and then the ball seat 14 can be rotated to make the ball seat 14 rotate inside the spherical cavity 13 inside the pipe seat 11. When the angle between the pipes has a certain offset, the staff can adjust the angle between the two connecting pipes so that the end of the connecting pipe is aligned with the gas pipe, so that it is convenient for the staff to connect the two gas pipes, thereby facilitating the use of the staff. During actual installation, the end of the connecting pipe can also be connected to the gas pipe by reconnecting the elbow to meet the installation angle requirements. The connecting pipe is composed of an inner pipe 21 and an outer pipe 22. The outer pipe 22 can be telescopically slid on the inner pipe 21 to adjust the length, thereby facilitating connection and installation with the pipe, thereby facilitating the use of the staff. The first rubber ring 31 can be provided to seal the connection between the outer pipe 22 and the inner pipe 21, thereby reducing gas leakage. The second rubber ring 32 is used to seal between the spherical cavity 13 and the ball seat 14, thereby reducing gas leakage.

[0034] The staff can rotate the bolt 43 so that the end of the bolt 43 rests on the surface of the inner tube 21, thereby fixing the outer tube 22 and the inner tube 21. Then the staff rotates the hexagonal screw handle 63 with a wrench, thereby driving the worm 61 to rotate. The rotation of the worm 61 drives the worm gear 62 and the ring body 54 to rotate inside the annular cavity 51, and then the ring body 54 drives the multiple trapezoidal blocks 55 to move. Then the trapezoidal blocks 55 squeeze the fixing pin 52, so that the end of the fixing pin 52 rests on the surface of the ball seat 14, thereby fixing the ball seat 14, thereby reducing the shaking between the tube seat 11 and the ball seat 14 caused by the vibration generated when the upper vehicle is running, thereby improving the stability of the connection. A rubber sealing sleeve 72 is also provided on the outer tube 22. After the gas pipeline is installed and fixed to the flange 12 of the outer tube 22, the rubber sealing sleeve 72 is pulled to wrap it around the tube seat 11. Then the two ends of the rubber sealing sleeve 72 are fixed to the outer tube 22 by clamps 71. The clamps 71 are fixed with fasteners. Relying on the above arrangement, the connection between the outer tube 22, the inner tube 21, the tube seat 11 and the ball seat 14 can be isolated from the outside, thereby isolating it from the external environment, thereby reducing the leakage of the connection caused by rain corrosion. Furthermore, the staff can use a glue gun to inject glue from the glue injection tube 8 into the inside, and rely on the glue to solidify inside the rubber sealing sleeve 72, which can improve the sealing effect and ensure the sealing effect of the connection.

[0035] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A connection structure for sinking a gas pipe, comprising two connecting pipes, both ends of the connecting pipes being fixedly connected with flanges (12); characterized in that: A tube seat (11) and a ball seat (14) are provided between the two connecting tubes. The ends of the tube seat (11) and the ball seat (14) are fixedly connected to the two connecting tubes respectively. A spherical cavity (13) is provided inside the tube seat (11). The ball seat (14) is buckled and rollingly connected inside the spherical cavity (13). A connecting cavity (15) is provided inside the ball seat (14). The connecting cavity (15) and the spherical cavity (13) are communicated.

2. The connection structure for sinking a gas pipe according to claim 1, characterized in that: The connecting pipe comprises an inner pipe (21) and an outer pipe (22), the two inner pipes (21) are respectively fixed to the ends of the pipe seat (11) and the ball seat (14), the inner pipe (21) is inserted into the interior of the outer pipe (22) and is slidably connected thereto, and the end of the outer pipe (22) is fixed to the flange (12).

3. The connection structure for sinking a gas pipe according to claim 2, characterized in that: A first rubber ring (31) is installed on the outer tube (22), and the first rubber ring (31) is sleeved on the surface of the inner tube (21). A pair of second rubber rings (32) are installed on the side wall of the spherical cavity (13), and the second rubber rings (32) are sleeved on the surface of the ball seat (14).

4. The connection structure for sinking a gas pipe according to claim 3, characterized in that: An annular seat (41) is fixedly connected to one end of the outer tube (22) close to the inner tube (21). The annular seat (41) is sleeved on the inner tube (21). A plurality of screw sleeves (42) are fixedly connected to the annular seat (41). The middle part of the screw sleeve (42) is threadedly connected to a bolt (43). The end of the bolt (43) is inserted into the interior of the annular seat (41).

5. The connection structure for sinking a gas pipe according to claim 4, characterized in that: An annular cavity (51) is provided inside the tube seat (11), a ring body (54) is rotatably connected inside the annular cavity (51), a plurality of sliding holes (53) are provided on the side of the annular cavity (51), the plurality of sliding holes (53) are distributed in an annular array, a fixing pin (52) is slidably connected inside the plurality of sliding holes (53), a plurality of trapezoidal blocks (55) are fixedly connected to one side of the annular body (54) close to the fixing pin (52), and a driving component capable of driving the ring body (54) to rotate is provided on the side of the annular cavity (51).

6. The connection structure for sinking a gas pipe according to claim 5, characterized in that: The drive assembly comprises a worm wheel (62) and a worm (61), wherein the worm (61) is rotatably connected to the side of the annular cavity (51), and the worm wheel (62) is fixed to the outer surface of the ring body (54). The worm (61) and the worm wheel (62) are meshed with each other, and the end of the worm (61) is fixed with a hexagonal screw shank (63).

7. The connection structure for sinking a gas pipe according to claim 4, characterized in that: A plurality of clamps (71) are sleeved on the surfaces of the two outer tubes (22), and the two clamps (71) are detachably fixedly connected via fasteners. A rubber sealing sleeve (72) is sleeved on the outer tube (22), and the clamps (71) are sleeved on the rubber sealing sleeve (72).

8. The connection structure for sinking a gas pipe according to claim 7, characterized in that: A glue injection tube (8) is fixedly connected to the rubber sealing sleeve (72), and the glue injection tube (8) and the interior of the rubber sealing sleeve (72) are communicated.

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