Gas pipeline pressure detection device and detection method

Abstract

The invention belongs to the field of pressure detection equipment, and particularly relates to a gas pipeline pressure detection device and method.The gas pipeline pressure detection device comprises a first base and a second base, the second base is located on the left side of the first base, and a rotating mechanism is arranged between the second base and the first base; sliding plates are slidably mounted at the tops of the first base and the second base, gas pipeline placement seats are fixedly mounted at the tops of the sliding plates, placement holes used for placement of gas pipelines and provided with openings in the tops are formed in one sides of the gas pipeline placement seats, guide grooves are formed in the tops of the sliding plates, and pressing plates are slidably mounted in the guide grooves; a round hole is formed in one side of the pressing plate. The device is reasonable in design, the angle and the distance between the two gas pipeline containing bases can be adjusted, the device can flexibly adapt to gas pipelines of different shapes and gas pipelines of different specifications, and the universality and the applicability of the device are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure detection equipment, and in particular to a gas pipeline pressure detection device and a detection method. Background Art

[0002] Gas pipelines play a vital role in energy transportation and other fields. Their safe and reliable operation is of great significance to ensuring the normal production and life. During the installation, maintenance and regular inspection of gas pipelines, it is necessary to accurately test the pressure of gas pipelines to ensure that the sealing and pressure bearing capacity of the pipelines meet the requirements.

[0003] However, existing gas pipeline pressure detection devices often have some shortcomings, such as the inconvenience of placing gas pipelines of different shapes such as bends, difficulty in flexibly adjusting to adapt to gas pipelines of different specifications, and the operation is not convenient and efficient when sealing and fixing gas pipelines for pressure detection. Therefore, we propose a gas pipeline pressure detection device and detection method to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a gas pipeline pressure detection device and detection method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A gas pipeline pressure detection device comprises a base 1 and a base 2, wherein the base 2 is located on the left side of the base 1, and a rotating mechanism is provided between the base 2 and the base 1, a sliding plate is slidably installed on the top of each of the bases 1 and 2, a gas pipeline placement seat is fixedly installed on the top of the sliding plate, a placement hole with an open top for placing the gas pipeline is provided on one side of the gas pipeline placement seat, a guide groove is provided on the top of the sliding plate, a pressing plate is slidably installed in the guide groove, a circular hole is provided on one side of the pressing plate, a conical sealing seat is fixedly installed on the side where the two pressing plates are close to each other, a sealing pad is fixedly installed on the outer side of the conical sealing seat, an air pipe is installed on the conical sealing seat, and a barometer for pressure detection is installed on the right end of the air pipe located on the right side;

[0007] A vertical plate is fixedly installed on the top of the sliding plate, and a threaded hole two is opened on one side of the vertical plate, and an extrusion screw is installed on the inner thread of the threaded hole two, one end of the extrusion screw is rotatably installed on the clamping plate, and the other end of the extrusion screw is fixedly installed with a handle. The rotating mechanism includes a rotating hole, a rotating rod, a rotating seat and a rotating plate. A rotating hole with an open side is opened on the front side of the base one, and the same rotating rod is rotatably installed on the top and bottom inner walls of the rotating hole. The top end of the rotating rod extends to the top of the base one and is fixedly installed with a rotating plate, and a rotating seat is fixedly installed on the rotating rod, and the rotating seat is fixedly connected to the base two.

[0008] Preferably, a rotation groove is formed on the pressing plate, an annular groove is formed on the inner wall of the rotation groove, an annular seat is fixedly mounted on the extrusion screw, and the annular seat is rotationally connected to the annular groove.

[0009] Preferably, a limiting hole is provided on the clamping plate, a limiting rod is fixedly installed on one side of the vertical plate, one end of the limiting rod is fixedly installed on the corresponding gas pipeline placement seat, and the limiting rod is slidably connected to the corresponding limiting hole.

[0010] Preferably, the top of the base is provided with a plurality of fixing grooves at equal intervals in a circular shape, the top of the rotating plate is provided with a threaded hole, the inner thread of the threaded hole is provided with a fixing screw matched with the fixing groove, and a knob is fixedly provided at the top of the fixing screw.

[0011] Preferably, a sliding groove is provided on the top of the sliding plate, a sliding seat is slidably installed in the sliding groove, and the sliding seat is fixedly connected to the corresponding sliding plate.

[0012] Preferably, a rectangular hole is opened on one side of the sliding seat, and the same rack plate is fixedly installed on the inner walls of both sides of the sliding groove, and the rack plate is slidably connected to the rectangular hole.

[0013] Preferably, a guide hole is opened on the top inner wall of the rectangular hole, a rotating shaft is rotatably installed on the front and rear inner walls of the guide hole, a rotating gear is fixedly installed on the rotating shaft, a spur rack is fixedly installed on the top of the rack plate, and the rotating gear is meshed with the spur rack.

[0014] Preferably, a rotating hole is opened on the top of the sliding plate, a driving shaft is rotatably installed in the rotating hole, a worm is fixedly installed on the bottom end of the driving shaft, a worm wheel meshing with the worm is fixedly installed on the rotating shaft, and a rotating plate is fixedly installed on the top end of the driving shaft.

[0015] Preferably, a fixing plate is fixedly installed on the top of the gas pipeline placement seat, a plurality of spring grooves are provided at the bottom of the fixing plate, a return spring is fixedly installed on the top inner wall of the spring groove, a same arc-shaped pressure plate is fixedly installed at the bottom ends of the plurality of return springs located on the same side, a threaded hole three is provided at the top of the fixing plate, a pushing screw for extruding the arc-shaped pressure plate is installed in the inner thread of the threaded hole three, the bottom end of the pushing screw is in contact with the arc-shaped pressure plate, and a hand wheel is fixedly installed on the top of the pushing screw.

[0016] A detection method for a gas pipeline pressure detection device comprises the following steps:

[0017] S1: When the gas pipeline is a curved pipe, by rotating the knob and the fixing screw, the fixing screw can be rotated and moved under the action of the threaded hole 1, and the fixing screw can be inserted into or disengaged from the corresponding fixing groove, so as to achieve the purpose of fixing and releasing the rotating plate. By rotating the rotating plate, the rotating plate can drive the rotating seat and the base 2 to rotate through the rotating rod, so as to adjust the angle between the two gas pipeline placement seats, so as to achieve the purpose of placing the curved pipe of the gas pipeline;

[0018] S2: By rotating the rotating plate, the rotating plate can drive the worm to rotate through the driving shaft, the worm can drive the rotating shaft to rotate through the worm gear, the rotating shaft can drive the rotating gear to rotate, and under the action of the spur rack, the rotating gear can move along the spur rack when rotating, the rotating gear drives the driving seat to move through the rotating shaft, and the driving seat can drive the sliding plate and the conical sealing seat to move, so that the distance between the two conical sealing seats can be adjusted, and different gas pipelines can be placed;

[0019] S3: Place the gas pipeline into the placement holes of the two gas pipeline placement seats. By turning the hand wheel and pushing the screw, the screw can be pushed and moved downward while rotating under the action of the threaded hole three. The pushing screw can drive the arc-shaped pressing plate to move downward. The arc-shaped pressing plate can press the placed gas pipeline, thereby achieving the purpose of pressing and fixing the gas pipeline;

[0020] S4: By rotating the handle and the extrusion screw, under the action of the second threaded hole, the extrusion screw can rotate and move, the extrusion screw can drive the clamping plate to move, the clamping plate can drive the conical sealing seat to insert into the gas pipe, and the two end openings of the gas pipe can be sealed through the two conical sealing seats. The air pump is connected to the air pipe on the left and gas is injected into the gas pipe. The pressure in the gas pipe can be displayed through the pressure gauge. When the gas pipeline is pressure-maintained, the purpose of pressure testing the gas pipeline is achieved through the value change of the pressure gauge.

[0021] Beneficial effects of the present invention:

[0022] 1. When the gas pipeline is a curved pipe, the fixing screw and the fixing groove cooperate to fix and release the rotating plate, and the rotating plate can drive the second base to rotate, thereby adjusting the angle between the two gas pipeline placement seats, thereby achieving the purpose of placing the curved pipe of the gas pipeline;

[0023] 2. Through the cooperation of the rotating plate, the driving shaft, the worm and the worm wheel, the rotating shaft can drive the rotating gear to rotate. Under the action of the spur rack, the rotating gear can move along the spur rack when rotating, so as to adjust the distance between the two conical sealing seats and place different gas pipelines;

[0024] 3. Place the gas pipeline into the placement holes of the two gas pipeline placement seats. By turning the hand wheel and pushing the screw, the pushing screw can drive the arc-shaped pressing plate to move downward, and the arc-shaped pressing plate can press the placed gas pipeline, thereby achieving the purpose of pressing and fixing the gas pipeline;

[0025] 4. The handle can be used to drive the conical sealing seat to be inserted into the gas pipe. The two conical sealing seats can be used to seal the openings at both ends of the gas pipe. The air pump is connected to the air pipe on the left and gas is injected into the gas pipe. The pressure in the gas pipe can be displayed by the pressure gauge. The pressure test of the gas pipe can be achieved by changing the value of the pressure gauge while the gas pipeline is under pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the three-dimensional structure of a gas pipeline pressure detection device proposed by the present invention;

[0027] Figure 2 A schematic diagram of a cross-sectional three-dimensional structure of a gas pipeline pressure detection device proposed by the present invention;

[0028] Figure 3 This is a schematic structural diagram of part A of a gas pipeline pressure detection device proposed by the present invention;

[0029] Figure 4 This is a schematic structural diagram of part B of a gas pipeline pressure detection device proposed by the present invention;

[0030] Figure 5 This is a schematic structural diagram of part C of a gas pipeline pressure detection device proposed by the present invention;

[0031] Figure 6 This is a structural schematic diagram of part D of a gas pipeline pressure detection device proposed by the present invention.

[0032] In the figure: 101, base 1; 102, base 2; 2, sliding plate; 3, gas pipe placement seat; 301, placement hole; 401, rotation hole; 402, rotation rod; 403, rotation seat; 404, rotation plate; 5, fixing groove; 502, threaded hole 1; 503, fixing screw; 504, knob; 601, guide groove; 602, pressing plate; 603, round hole; 604, conical sealing seat; 605, air pipe; 606, sealing pad; 607, barometer; 701, vertical plate; 702, limit rod; 801, Threaded hole two; 802, extrusion screw; 803, handle; 901, sliding groove; 902, sliding seat; 10, rectangular hole; 111, rack plate; 112, spur rack; 113, guide hole; 114, rotating shaft; 115, rotating gear; 121, rotating hole; 122, driving shaft; 123, worm; 124, worm wheel; 125, rotating plate; 13, fixed plate; 141, spring groove; 142, return spring; 143, arc pressure plate; 151, threaded hole three; 152, push screw; 153, handwheel. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. "Disposed" indicates a way of existence, which can be a connection method such as connection, installation, fixed connection, active connection, etc. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be an intermediate component at the same time.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] Reference Figure 1-6A gas pipeline pressure detection device includes a base 101 and a base 2 102, the base 2 102 is located on the left side of the base 101, and a rotating mechanism is provided between the base 2 102 and the base 101, a sliding plate 2 is slidably installed on the top of the base 101 and the base 2 102, a gas pipeline placement seat 3 is fixedly installed on the top of the sliding plate 2, a placement hole 301 with an open top for placing the gas pipeline is opened on one side of the gas pipeline placement seat 3, a guide groove 601 is opened on the top of the sliding plate 2, and a pressing plate is slidably installed in the guide groove 601 602, a circular hole 603 is opened on one side of the pressing plate 602, a conical sealing seat 604 is fixedly installed on the side where the two pressing plates 602 are close to each other, a sealing pad 606 is fixedly installed on the outer side of the conical sealing seat 604, a gas pipe 605 is installed on the conical sealing seat 604, and a barometer 607 for pressure detection is installed on the right end of the gas pipe 605 on the right side, and the pressure in the gas pipe 605 can be displayed through the barometer 607, and the pressure test of the gas pipe 605 can be achieved by changing the value of the pressure gauge when the gas pipe 605 is maintained;

[0037] A vertical plate 701 is fixedly installed on the top of the sliding plate 2, a threaded hole 801 is opened on one side of the vertical plate 701, an extrusion screw 802 is installed in the thread of the threaded hole 801, one end of the extrusion screw 802 is rotatably installed on the pressing plate 602, and a handle 803 is fixedly installed on the other end of the extrusion screw 802. The rotating mechanism includes a rotating hole 401, a rotating rod 402, a rotating seat 403 and a rotating plate 404. A rotating hole 401 with an opening on one side is opened on the front side of the base 101, and a rotating hole 401 is rotatably installed on the top and bottom inner walls of the rotating hole 401. There is a same rotating rod 402, the top end of the rotating rod 402 extends to the top of the base 101 and is fixedly installed with a rotating plate 404, a rotating seat 403 is fixedly installed on the rotating rod 402, and the rotating seat 403 is fixedly connected to the base 102, a rotating groove is opened on the clamping plate 602, an annular groove is opened on the inner wall of the rotating groove, an annular seat is fixedly installed on the extrusion screw 802, and the annular seat is rotatably connected to the annular groove, by providing the annular groove and the annular seat, the purpose of rotatably installing the extrusion screw 802 on the clamping plate 602 can be achieved.

[0038] In this embodiment, a limiting hole is provided on the clamping plate 602, a limiting rod 702 is fixedly installed on one side of the vertical plate 701, one end of the limiting rod 702 is fixedly installed on the corresponding gas pipe placement seat 3, and the limiting rod 702 is slidably connected to the corresponding limiting hole. By setting the limiting rod 702, the clamping plate 602 can be guided, thereby achieving the purpose of stable movement of the clamping plate 602.

[0039] In this embodiment, a plurality of fixing grooves 5 are provided at equal intervals in a circular shape on the top of the base 101, a threaded hole 502 is provided on the top of the rotating plate 404, a fixing screw 503 matching the fixing groove 5 is installed in the inner thread of the threaded hole 502, and a knob 504 is fixedly installed on the top of the fixing screw 503. Through the cooperation of the fixing screw 503 and the fixing groove 5, the purpose of fixing and releasing the fixing of the rotating plate 404 can be achieved.

[0040] In this embodiment, a sliding groove 901 is provided at the top of the sliding plate 2, a sliding seat 902 is slidably installed in the sliding groove 901, and the sliding seat 902 is fixedly connected to the corresponding sliding plate 2, a rectangular hole 10 is provided on one side of the sliding seat 902, and the same rack plate 111 is fixedly installed on the inner walls of both sides of the sliding groove 901, and the rack plate 111 is slidably connected to the rectangular hole 10, a guide hole 113 is provided on the top inner wall of the rectangular hole 10, a rotating shaft 114 is rotatably installed on the front and rear inner walls of the guide hole 113, a rotating gear 115 is fixedly installed on the rotating shaft 114, a spur rack 112 is fixedly installed on the top of the rack plate 111, and the rotating gear 115 is meshed with the spur rack 112, and the top of the sliding plate 2 is provided with a There is a rotating hole 121, in which a driving shaft 122 is rotatably installed, a worm 123 is fixedly installed at the bottom end of the driving shaft 122, a worm wheel 124 meshing with the worm 123 is fixedly installed on the rotating shaft 114, and a rotating plate 125 is fixedly installed on the top of the driving shaft 122. Through the cooperation of the rotating plate 125, the driving shaft 122, the worm 123 and the worm wheel 124, the rotating shaft 114 can drive the rotating gear 115 to rotate, and under the action of the spur rack 112, the rotating gear 115 can move along the spur rack 112 when rotating, so that the distance between the two conical sealing seats 604 can be adjusted, and different gas pipes 605 can be placed.

[0041] In this embodiment, a fixing plate 13 is fixedly installed on the top of the gas pipeline placement seat 3, a plurality of spring grooves 141 are provided at the bottom of the fixing plate 13, a reset spring 142 is fixedly installed on the top inner wall of the spring groove 141, and a plurality of reset springs 142 located on the same side are fixedly installed with the same arc-shaped pressing plate 143 at the bottom ends thereof, a threaded hole 3 151 is provided at the top of the fixing plate 13, a pushing screw 152 for squeezing the arc-shaped pressing plate 143 is installed in the inner thread of the threaded hole 3 151, and the bottom end of the pushing screw 152 is connected to the arc-shaped pressing plate 143. The hand wheel 153 is fixedly installed on the top of the pushing screw 152, and the gas pipe 605 is placed in the placement hole 301 of the two gas pipe placement seats 3. By rotating the hand wheel 153 and the pushing screw 152, under the action of the threaded hole three 151, the pushing screw 152 can be moved downward while rotating, and the pushing screw 152 can drive the arc pressure plate 143 to move downward, and the arc pressure plate 143 can press the placed gas pipe 605, so as to achieve the purpose of pressing and fixing the gas pipe 605.

[0042] A detection method for a gas pipeline pressure detection device comprises the following steps:

[0043] S1: When the gas pipe 605 is a curved pipe, by rotating the knob 504 and the fixing screw 503, under the action of the threaded hole 1 502, the fixing screw 503 can be rotated and moved, and the fixing screw 503 can be inserted into or disengaged from the corresponding fixing groove 5, so as to achieve the purpose of fixing and releasing the rotating plate 404. By rotating the rotating plate 404, the rotating plate 404 can drive the rotating seat 403 and the base 2 102 to rotate through the rotating rod 402, so as to adjust the angle between the two gas pipe placement seats 3, so as to achieve the purpose of placing the curved pipe of the gas pipe 605;

[0044] S2: By rotating the rotating plate 125, the rotating plate 125 can drive the worm 123 to rotate through the driving shaft 122, the worm 123 can drive the rotating shaft 114 to rotate through the worm gear 124, the rotating shaft 114 can drive the rotating gear 115 to rotate, under the action of the spur rack 112, the rotating gear 115 can move along the spur rack 112 when rotating, the rotating gear 115 drives the driving seat to move through the rotating shaft 114, and the driving seat can drive the sliding plate 2 and the conical sealing seat 604 to move, so as to adjust the distance between the two conical sealing seats 604, and to place different gas pipes 605;

[0045] S3: Place the gas pipe 605 into the placement holes 301 of the two gas pipe placement seats 3, and by turning the hand wheel 153 and pushing the screw 152, the screw 152 can be pushed and moved downwards under the action of the threaded hole 151, and the pushing screw 152 can drive the arc-shaped pressing plate 143 to move downwards, and the arc-shaped pressing plate 143 can press the placed gas pipe 605, so as to achieve the purpose of pressing and fixing the gas pipe 605;

[0046] S4: By rotating the handle 803 and the extrusion screw 802, under the action of the second threaded hole 801, the extrusion screw 802 can rotate and move, and the extrusion screw 802 can drive the clamping plate 602 to move, and the clamping plate 602 can drive the conical sealing seat 604 to insert into the gas pipe 605. The two end openings of the gas pipe 605 can be sealed through the two conical sealing seats 604. The air pump is connected to the gas pipe 605 on the left and gas is injected into the gas pipe 605. The pressure in the gas pipe 605 can be displayed through the pressure gauge 607. The pressure in the gas pipe 605 is maintained through the value change of the pressure gauge to achieve the purpose of pressure testing the gas pipe 605.

[0047] The above is a detailed introduction to a gas pipeline pressure detection device and detection method provided by the present invention. Specific embodiments are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A gas pipeline pressure detection device, characterized in that: The utility model comprises a base 1 (101) and a base 2 (102), wherein the base 2 (102) is located on the left side of the base 1 (101), and a rotating mechanism is provided between the base 2 (102) and the base 1 (101), and a sliding plate (2) is slidably installed on the top of each of the bases 1 (101) and 2 (102), and a gas pipeline placement seat (3) is fixedly installed on the top of the sliding plate (2), and a placement hole (301) with an open top for placing a gas pipeline is provided on one side of the gas pipeline placement seat (3); A guide groove (601) is provided on the top of the sliding plate (2), a pressing plate (602) is slidably installed in the guide groove (601), a circular hole (603) is provided on one side of the pressing plate (602), a conical sealing seat (604) is fixedly installed on the side where the two pressing plates (602) are close to each other, a sealing gasket (606) is fixedly installed on the outer side of the conical sealing seat (604), an air pipe (605) is installed on the conical sealing seat (604), and a pressure gauge (607) for pressure detection is installed on the right end of the air pipe (605) on the right side; A vertical plate (701) is fixedly mounted on the top of the sliding plate (2), a second threaded hole (801) is provided on one side of the vertical plate (701), an extrusion screw rod (802) is internally threadedly mounted in the second threaded hole (801), one end of the extrusion screw rod (802) is rotatably mounted on the pressing plate (602), and a handle (803) is fixedly mounted on the other end of the extrusion screw rod (802); The rotating mechanism comprises a rotating hole (401), a rotating rod (402), a rotating seat (403) and a rotating plate (404); a rotating hole (401) with one side being open is provided on the front side of the first base (101); a rotating rod (402) is rotatably mounted on the top and bottom inner walls of the rotating hole (401); a top end of the rotating rod (402) extends to the top of the first base (101) and is fixedly mounted with a rotating plate (404); a rotating seat (403) is fixedly mounted on the rotating rod (402), and the rotating seat (403) is fixedly connected to the second base (102).

2. A gas pipeline pressure detection device according to claim 1, characterized in that: The pressing plate (602) is provided with a rotation groove, the inner wall of the rotation groove is provided with an annular groove, an annular seat is fixedly mounted on the extrusion screw (802), and the annular seat is rotationally connected to the annular groove.

3. A gas pipeline pressure detection device according to claim 1, characterized in that: The clamping plate (602) is provided with a limiting hole, a limiting rod (702) is fixedly mounted on one side of the vertical plate (701), one end of the limiting rod (702) is fixedly mounted on a corresponding gas pipeline placement seat (3), and the limiting rod (702) is slidably connected to the corresponding limiting hole.

4. A gas pipeline pressure detection device according to claim 1, characterized in that: The top of the base (101) is provided with a plurality of fixing grooves (5) at equal intervals in a circular shape, the top of the rotating plate (404) is provided with a threaded hole (502), a fixing screw (503) matching the fixing groove (5) is installed in the inner thread of the threaded hole (502), and a knob (504) is fixedly installed at the top of the fixing screw (503).

5. A gas pipeline pressure detection device according to claim 1, characterized in that: A sliding groove (901) is provided on the top of the sliding plate (2), a sliding seat (902) is slidably installed in the sliding groove (901), and the sliding seat (902) is fixedly connected to the corresponding sliding plate (2).

6. A gas pipeline pressure detection device according to claim 5, characterized in that: A rectangular hole (10) is provided on one side of the sliding seat (902), and a same rack plate (111) is fixedly mounted on the inner walls of both sides of the sliding groove (901), and the rack plate (111) is slidably connected to the rectangular hole (10).

7. A gas pipeline pressure detection device according to claim 6, characterized in that: A guide hole (113) is provided on the top inner wall of the rectangular hole (10); a rotating shaft (114) is rotatably mounted on the front and rear inner walls of the guide hole (113); a rotating gear (115) is fixedly mounted on the rotating shaft (114); a spur rack (112) is fixedly mounted on the top of the rack plate (111), and the rotating gear (115) meshes with the spur rack (112).

8. A gas pipeline pressure detection device according to claim 7, characterized in that: A rotating hole (121) is provided at the top of the sliding plate (2), a driving shaft (122) is rotatably mounted in the rotating hole (121), a worm (123) is fixedly mounted at the bottom end of the driving shaft (122), a worm wheel (124) meshing with the worm (123) is fixedly mounted on the rotating shaft (114), and a rotating plate (125) is fixedly mounted at the top end of the driving shaft (122).

9. A gas pipeline pressure detection device according to claim 1, characterized in that: A fixing plate (13) is fixedly mounted on the top of the gas pipe placement seat (3), a plurality of spring grooves (141) are provided at the bottom of the fixing plate (13), a return spring (142) is fixedly mounted on the inner wall of the top of the spring groove (141), a same arc-shaped pressing plate (143) is fixedly mounted at the bottom ends of the plurality of return springs (142) located on the same side, a threaded hole three (151) is provided at the top of the fixing plate (13), a pushing screw (152) for squeezing the arc-shaped pressing plate (143) is installed in the inner thread of the threaded hole three (151), the bottom end of the pushing screw (152) is in contact with the arc-shaped pressing plate (143), and a hand wheel (153) is fixedly mounted on the top end of the pushing screw (152).

10. The detection method of a gas pipeline pressure detection device according to claim 1, characterized in that: The following steps are involved: S1: When the gas pipe (605) is a curved pipe, the knob (504) and the fixing screw (503) are rotated, and under the action of the threaded hole (502), the fixing screw (503) can be rotated and moved at the same time, and the fixing screw (503) can be inserted into or separated from the corresponding fixing groove (5), so as to achieve the purpose of fixing and releasing the rotating plate (404). By rotating the rotating plate (404), the rotating plate (404) can drive the rotating seat (403) and the second base (102) to rotate through the rotating rod (402), so as to achieve the angle between the two gas pipe placement seats (3), so as to achieve the purpose of placing the curved pipe of the gas pipe (605); S2: By rotating the rotating plate (125), the rotating plate (125) can drive the worm (123) to rotate through the driving shaft (122), the worm (123) can drive the rotating shaft (114) to rotate through the worm gear (124), the rotating shaft (114) can drive the rotating gear (115) to rotate, and under the action of the spur rack (112), the rotating gear (115) can move along the spur rack (112) when rotating, the rotating gear (115) drives the driving seat to move through the rotating shaft (114), and the driving seat can drive the sliding plate (2) and the conical sealing seat (604) to move, so that the distance between the two conical sealing seats (604) can be adjusted, and different gas pipes (605) can be placed; S3: placing the gas pipe (605) into the placement holes (301) of the two gas pipe placement seats (3), and by rotating the hand wheel (153) and pushing the screw rod (152), the screw rod (152) can be pushed downward while rotating under the action of the threaded hole (151), and the pushing screw rod (152) can drive the arc-shaped pressing plate (143) to move downward, and the arc-shaped pressing plate (143) can press the placed gas pipe (605), thereby achieving the purpose of pressing and fixing the gas pipe (605); S4: By rotating the handle (803) and the extrusion screw (802), the extrusion screw (802) can be rotated and moved under the action of the second threaded hole (801), and the extrusion screw (802) can drive the pressing plate (602) to move, and the pressing plate (602) can drive the conical sealing seat (604) to insert into the gas pipe (605). The two conical sealing seats (604) can seal the openings at both ends of the gas pipe (605). The air pump is connected to the gas pipe (605) on the left side and gas is injected into the gas pipe (605). The pressure in the gas pipe (605) can be displayed through the pressure gauge (607). The pressure in the gas pipe (605) is maintained through the value change of the pressure gauge to achieve the purpose of pressure testing the gas pipe (605).

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