A mobile oil and gas recovery detector

Abstract

The present invention discloses a mobile oil and gas recovery detector, comprising a mobile frame and a detection body and an oil tank body arranged on both sides of the mobile frame, and also comprising a pipeline 1, wherein the pipeline 1 is arranged between the air outlet of the detection body and the air inlet of the oil tank body; a pipeline 2, wherein the pipeline is arranged between the air inlet of the detection body and the air outlet of the oil tank body; a connecting component, wherein the connecting component is arranged on the mobile frame, and a scraper, wherein a plurality of scrapers are arranged and are respectively installed inside the pipeline 1 and the pipeline 2; and a cleaning mechanism, wherein the cleaning mechanism is arranged on the mobile frame. This mobile oil and gas recovery detector is different from the prior art in that when the staff conducts oil and gas recovery detection, the connecting component can be used to connect the pipeline 1 and the pipeline 2, and the connection can be switched according to the type of the refueling gun, and the cleaning mechanism can be used to drive the scraper to shift and adjust, so as to clean the inner walls of the pipeline 1 and the pipeline 2.

Description

Technical Field

[0001] The invention relates to the technical field of oil and gas recovery detection instruments, in particular to a mobile oil and gas recovery detection instrument. Background Art

[0002] Gas stations will have oil and gas emissions in daily operations, which affects the air quality. How to maintain the reasonable operation of the oil and gas recovery system, reduce the pollution of organic emissions to the atmosphere, reduce the impact on the health of on-site employees and customers, reduce operating losses, and enhance the corporate image are the common goals pursued by everyone. Oil and gas recovery refers to the collection of volatile gasoline and gas during the process of loading and unloading gasoline and refueling vehicles. Through one or two methods such as absorption, adsorption or condensation, the pollution of oil and gas is reduced, or the oil and gas is converted from gas to liquid and then back to gasoline to achieve the purpose of recycling.

[0003] There are two ways to monitor the three indicators of the current oil and gas recovery system:

[0004] 1. The state stipulates that enterprises must hire a third party with inspection qualifications in accordance with regulations to conduct an inspection of the oil and gas recovery system once a year and issue a test report. The monitored equipment must meet the monitoring requirements. The disadvantages of this method are: first, suspension of business for inspection affects operations; second, the fees are high; third, the inspection time span is long, which affects the daily equipment management of gas stations.

[0005] 2. Following the early foreign technology, an online monitoring method is adopted. According to the invention patent application with patent number CN201310488264 and patent name: Gas Station Secondary Oil and Gas Recovery Online Monitoring System, its principle is to install an explosion-proof gas flow meter on the oil and gas circuit of each gasoline gun, and detect, record and send the oil and gas recovery gas-liquid ratio of each refueling transaction, so as to know the abnormality immediately. Disadvantages: excessive equipment configuration, expensive installation and maintenance costs, and no benefits.

[0006] Therefore, some designers have designed a mobile oil and gas recovery detection equipment, which is mainly composed of a detection host, an oil tank, accessories (toolbox, pipeline accessories and instruments) and other structures. Through the connection of pipeline accessories, the gas station can be tested for liquid resistance, tightness and gas-liquid ratio. However, we found in actual use that this oil and gas recovery detection equipment requires staff to connect the pipeline many times in actual use, and the pipelines used for oil and gas detection are mostly large in size and relatively heavy. Not only does it greatly increase the work intensity of the detection personnel, but also after the pipeline is tested, oil and gas adhere to the pipe mouth and the inner wall. During the subsequent connection, it will inevitably adhere to the hands of the staff. When they operate the host, they will adhere to the operation interface of the host, which will affect the normal operation of the staff to a certain extent. For this reason, we propose a mobile oil and gas recovery detector. Summary of the invention

[0007] The purpose of the present invention is to provide a mobile oil and gas recovery detector to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a mobile oil and gas recovery detector, comprising a mobile frame and a detection body and an oil tank body arranged on both sides of the mobile frame, and also comprising a pipeline 1, wherein the pipeline 1 is arranged between the air outlet of the detection body and the air inlet of the oil tank body; a pipeline 2, wherein the pipeline is arranged between the air inlet of the detection body and the air outlet of the oil tank body; a connecting component, wherein the connecting component is arranged on the mobile frame, and a scraper, wherein a plurality of scrapers are arranged and are respectively installed inside the pipeline 1 and the pipeline 2; a cleaning mechanism, wherein the cleaning mechanism is arranged on the mobile frame, which is different from the prior art, so that when the staff conducts oil and gas recovery detection, the connecting component can be used to connect the pipeline 1 and the pipeline 2, and the connection can be switched according to the model of the refueling gun, and the cleaning mechanism can be used to drive the scraper to shift and adjust, so as to clean the inner walls of the pipeline 1 and the pipeline 2.

[0009] Preferably, the communication component comprises a support seat arranged on the mobile frame, an adapter is installed on the support seat, a plurality of adapters are provided to adapt to different types of fueling guns, and a switching member is provided on the support seat, and the switching member is used to drive the designated adapter to cooperate with the fueling gun;

[0010] The air outlet of the detection body is provided with a valve, and the pipeline 1 is connected with the air outlet of the detection body through the valve.

[0011] Preferably, the switching member includes a fixed frame rotatably set on a support seat, and multiple adapters are respectively arranged on the fixed frame. The pipeline is connected to the air inlet of the oil tank body through the adapter. A first motor is arranged on the support seat, and the output end of the first motor is connected to the fixed frame.

[0012] Preferably, a hard tube is provided on one side of the pipeline one and the pipeline two close to the detection body, the cleaning mechanism includes two cleaning parts respectively arranged in the hard tube, the scrapers are respectively arranged on the cleaning parts, and the oil and gas inside the pipeline one and the pipeline two can be scraped by shifting the cleaning parts, a fixed plate is provided on the movable frame, a shifting assembly is provided on the fixed plate, the shifting assembly is respectively connected to the two cleaning parts, and the two cleaning parts are driven to shift by the shifting assembly.

[0013] Preferably, the cleaning part comprises a positioning plate arranged on the hard tube, a plurality of adjusting members installed in the hard tube are arranged in the hard tube, the scrapers are respectively arranged on the adjusting members, and the adjusting members are used to drive the plurality of scrapers to adjust synchronously;

[0014] Functional parts are arranged on the plurality of adjusting parts, and the plurality of adjusting parts can be connected and adjusted synchronously by using the functional parts.

[0015] Preferably, the adjusting member includes a bidirectional screw rod movably arranged in a hard tube, both ends of the bidirectional screw rod are respectively threadedly connected with a fixing ring, a plurality of rotating rods are rotatably arranged on the fixing rings, and the rotating rods located on different fixing rings are grouped in pairs, and an arc seat is rotatably arranged on each group of rotating rods, and the scraper is arranged on the arc seat.

[0016] Preferably, polygonal grooves are respectively provided at both ends of the bidirectional screw rod, and the functional parts include a plurality of connecting sleeves respectively arranged between two adjacent bidirectional screw rods, locking bolts are provided on the connecting sleeves, and a functional knob used in conjunction with the polygonal groove is provided on the bidirectional screw rod at the end.

[0017] Preferably, the displacement assembly comprises a screw rod disposed on a fixed plate, a displacement rod is threadedly connected to the screw rod, a second motor is disposed on the movable frame, an output end of the second motor is connected to the screw rod, a first driving member is disposed near the first pipe on the displacement rod, and the first driving member is used to drive the scraper in the first pipe to shift;

[0018] The shift rod is provided with a second driving member near the second pipeline, and the second driving member is used to drive the scraper in the second pipeline to shift.

[0019] Preferably, the first driving member includes a magnet 1 arranged on the shift rod, a magnet 2 used in conjunction with the magnet 1 is arranged on the magnet 1, the magnet 1 and the magnet 2 are movably sleeved on the outside of the pipe 1, and an inner magnet used in conjunction with the magnet 1 and the magnet 2 is arranged in the arc seat.

[0020] Preferably, the second driving member comprises a sliding frame arranged between the detection body and the oil tank body, the sliding frame is provided with a lifting plate, the lifting plate is slidably provided with a structure identical to the first magnet and the second magnet, the first magnet and the second magnet are movably sleeved on the outside of the second pipe, the arc seat is provided with a structure identical to the inner magnet, the shift rod is provided with an elastic toggle member, and the lifting plate is driven to shift by the elastic toggle member;

[0021] The elastic toggle member comprises a spring arranged at the end of the shift rod, and a push rod is arranged at the end of the spring.

[0022] The present invention has at least the following beneficial effects:

[0023] Different from the prior art, when the staff conducts oil and gas recovery inspection, they can use the connecting component to connect pipeline one and pipeline two, and switch according to the model of the refueling gun, and use the cleaning mechanism to drive the scraper to shift and adjust, so as to clean the inner walls of pipeline one and pipeline two, which reduces the pipeline connection in the gas-liquid ratio detection process to a certain extent, thereby reducing the work intensity of the inspection personnel. At the same time, it avoids the situation where the staff's hands are adhered to oil and gas impurities and pollute the equipment, ensuring that the staff can operate in a clean and tidy environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 For the present invention Figure 1 Another structural diagram;

[0026] Figure 3 For the present invention Figure 1 Schematic diagram of the local cross-section structure;

[0027] Figure 4 This is a schematic diagram of the enlarged structure of the A area of ​​the present invention;

[0028] Figure 5 For the present invention Figure 3 Schematic diagram of the local cross-section structure;

[0029] Figure 6 For the present invention Figure 2 Schematic diagram of the structure in another direction.

[0030] Figure 7 This is a schematic diagram of the enlarged structure of area B of the present invention;

[0031] Figure 8 For the present invention Figure 7 Schematic diagram of the local cross-section structure;

[0032] Fig. 9 It is a schematic diagram of the structure of the cleaning part of the present invention;

[0033] Fig.10 For the present invention Fig. 9 Explosion diagram of some structures;

[0034] Fig.11 It is a schematic diagram of the enlarged structure of region C of the present invention.

[0035] In the figure: 1-mobile frame; 2-detection body; 3-tank body; 4-connection assembly; 41-support seat; 42-adapter; 43-valve; 5-switching member; 51-fixed frame; 52-first motor; 6-cleaning mechanism; 61-hard pipe; 62-fixed plate; 7-cleaning part; 71-positioning plate; 8-adjusting member; 81-bidirectional screw rod; 82-fixed ring; 83-rotating rod; 84-arc seat; 9-functional member; 91-polygonal groove; 92-connecting sleeve; 93-locking bolt; 94-function knob; 10-shift assembly; 101-screw; 102-shift rod; 103-second motor; 11-first drive member; 111-magnet one; 112-magnet two; 113-inner magnet; 12-second drive member; 121-sliding frame; 122-lifting plate; 13-pipeline one; 14-pipeline two; 15-scraper; 16-elastic toggle member; 161-spring; 162-top rod. DETAILED DESCRIPTION

[0036] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0037] Example 1

[0038] See also Figure 1-11 , the present invention provides a technical solution:

[0039] A mobile oil and gas recovery detector comprises a mobile frame 1 and a detection body 2 and an oil tank body 3 arranged on both sides of the mobile frame 1. The detection body 2 and the oil tank body 3 are existing common structures and will not be described in detail herein.

[0040] It also includes a pipeline 13, which is arranged between the air outlet of the detection body 2 and the air inlet of the oil tank body 3;

[0041] Pipeline 2 14, the pipeline is arranged between the air inlet of the detection body 2 and the air outlet of the oil tank body 3;

[0042] The connecting component 4 is arranged on the mobile frame 1, and the connecting component 4 can be used to connect the pipeline 13 and the pipeline 2 14, and switch according to the fueling gun model;

[0043] The connecting component 4 includes a support base 41 disposed on the mobile frame 1, an adapter 42 is installed on the support base 41, and multiple adapters 42 are provided to adapt to different types of fueling guns. A switching member 5 is provided on the support base 41, and the switching member 5 is used to drive the designated adapter 42 to cooperate with the fueling gun;

[0044] The switching member 5 includes a fixing frame 51 rotatably mounted on the support seat 41, a plurality of adapters 42 are respectively mounted on the fixing frame 51, a pipeline 13 is connected to the air inlet of the oil tank body 3 through the adapter 42, a first motor 52 is mounted on the support seat 41, and an output end of the first motor 52 is connected to the fixing frame 51;

[0045] The air outlet of the detection body 2 is provided with a valve 43, and the pipeline 13 is connected to the air outlet of the detection body 2 through the valve 43;

[0046] A scraper 15, wherein a plurality of scrapers 15 are provided and are installed inside the pipe 1 13 and the pipe 2 14 respectively;

[0047] The cleaning mechanism 6 is arranged on the movable frame 1, and the cleaning mechanism 6 is used in conjunction with the pipe 1 13 and the pipe 2 14. The cleaning mechanism 6 is used to drive the scraper 15 to shift and adjust, thereby cleaning the inner walls of the pipe 1 13 and the pipe 2 14;

[0048] A hard tube 61 is provided on one side of the pipeline 13 and the pipeline 2 14 close to the detection body 2. The cleaning mechanism 6 includes two cleaning parts 7 respectively arranged in the hard tube 61. The scrapers 15 are respectively arranged on the cleaning parts 7. The oil and gas inside the pipeline 13 and the pipeline 2 14 can be scraped by shifting the cleaning parts 7. A fixed plate 62 is provided on the mobile frame 1. A shifting assembly 10 is provided on the fixed plate 62. The shifting assembly 10 is respectively connected to the two cleaning parts 7. The two cleaning parts 7 are shifted by the shifting assembly 10.

[0049] The cleaning part 7 includes a positioning plate 71 arranged on the hard tube 61. A plurality of adjusting members 8 installed in the hard tube 61 are arranged in the hard tube 61. The scrapers 15 are respectively arranged on the adjusting members 8. The adjusting members 8 are used to drive the plurality of scrapers 15 to adjust synchronously. The plurality of adjusting members 8 are staggered to achieve a better cleaning effect.

[0050] Functional parts 9 are provided on the multiple adjusting parts 8, and the multiple adjusting parts 8 can be connected and adjusted synchronously by using the functional parts 9;

[0051] A polygonal groove 91 is respectively formed at both ends of the bidirectional screw rod 81, and the functional part 9 includes a plurality of connecting sleeves 92 respectively disposed between two adjacent bidirectional screw rods 81, a locking bolt 93 is disposed on the connecting sleeve 92, and a functional knob 94 used in conjunction with the polygonal groove 91 is disposed on the bidirectional screw rod 81 at the end;

[0052] The adjusting member 8 includes a bidirectional screw rod 81 movably arranged in the hard tube 61, and both ends of the bidirectional screw rod 81 are respectively threadedly connected with a fixing ring 82, and a plurality of rotating rods 83 are rotatably arranged on the fixing ring 82, and the rotating rods 83 located on different fixing rings 82 are grouped in pairs, and an arc seat 84 is rotatably arranged on each group of rotating rods 83, and the scraper 15 is arranged on the arc seat 84;

[0053] The shift assembly 10 includes a screw rod 101 disposed on the fixed plate 62, a shift rod 102 is threadedly connected to the screw rod 101, a second motor 103 is disposed on the mobile frame 1, an output end of the second motor 103 is connected to the screw rod 101, and a first driving member 11 is disposed near the pipe 13 on the shift rod 102, and the first driving member 11 is used to drive the scraper 15 in the pipe 13 to shift;

[0054] The first driving member 11 includes a magnet 111 disposed on the shift rod 102, and a magnet 112 used in conjunction with the magnet 111 is disposed on the magnet 111. The magnet 111 and the magnet 112 are movably sleeved on the outside of the pipe 13, and an inner magnet 113 used in conjunction with the magnet 111 and the magnet 112 is disposed in the arc seat 84. The middle part of the magnet 111 on the shift rod 102 is rotatably connected so that it can move normally.

[0055] The displacement rod 102 is provided with a second driving member 12 near the second pipe 14, and the second driving member 12 is used to drive the scraper 15 in the second pipe 14 to shift;

[0056] The second driving member 12 includes a sliding frame 121 arranged between the detection body 2 and the oil tank body 3, and a lifting plate 122 is arranged on the sliding frame 121. The lifting plate 122 is slidably provided with the same structure as the magnet 1 111 and the magnet 2 112. The magnet 1 111 and the magnet 2 112 are movably sleeved on the outer side of the pipe 2 14, and the arc seat 84 is provided with the same structure as the inner magnet 113. The shift rod 102 is provided with an elastic toggle member 16, and the elastic toggle member 16 is used to drive the lifting plate 122 to shift, wherein the middle part of the magnet 1 111 slidably arranged on the lifting plate 122 is rotatably connected so that it can move normally;

[0057] The elastic toggle member 16 includes a spring 161 disposed at the end of the shift rod 102 , and a push rod 162 is disposed at the end of the spring 161 .

[0058] When in use, the staff pushes the mobile frame 1 to the gas station, and first performs a self-tightness test on the detection body 2. The test process is as follows: close the valve 43 of the air outlet of the detection body 2, close the valve 3 on the detection body 2, open the valve 2 and valve 4 on the detection body 2, adjust the pressure generator to the maximum, adjust the system pressure to "0", then close the valve 4, start pressurizing to more than 1250Pa, and after closing the valve 2, test for three minutes, and judge the tightness by the results;

[0059] Then, the sealing of the gas station system is tested. Specifically, the pipe 13 is disconnected near the adapter 42 and connected to the pipe of the gas station. The valve 43 is opened. The other valves are adjusted to test the sealing. The sealing condition is determined by the results.

[0060] Detect the gas-liquid ratio. Specifically, disconnect the pipe 13 to connect it to the adapter 42. When the adapter 42 is connected, start the first motor 52 to drive the fixing frame 51 to rotate, so that the adapter 42 adapted to the refueling gun is transferred to the oil tank body 3 for connection. After applying vaseline, connect the refueling gun, enter the information of the gas station and the refueling gun, open the valve 3, close the valve 2 and the valve 4, and refuel the specified amount of 20L or 30L with the refueling gun. The gas-liquid ratio information is obtained through the test results. The liquid resistance test is the same as the existing test method, and no further details are given here.

[0061] During the detection process, the second motor 103 is started to drive the screw 101 to rotate, and the screw 101 drives the shift rod 102 to shift horizontally, thereby driving the first driving member 11 to work. Specifically, when the magnet 111 and the magnet 2 112 are shifted, they will drive the internal inner magnet 113 to shift, thereby realizing the need for cleaning the inner wall of the pipe 13. When the top rod 162 at the end of the shift rod 102 contacts the lifting plate 122, it will drive it to shift synchronously. At this time, the magnet 111 and the magnet 2 112 arranged thereon will drive the internal inner magnet 113 to shift, thereby realizing the need for cleaning the inner wall of the pipe 2 14. Under the action of the lifting plate 122, it can adapt to When the adjustment angle is adjusted to adapt to the change of pipeline 2 14, when it reaches the end of pipeline 2 14, the setting of the oil tank body 3 affects the displacement of the lifting plate 122, and then the push rod 162 squeezes the spring 161 and is adjusted to the other side of the lifting plate 122, so that the pipeline 13 can continue to be cleaned. At the same time, when resetting, the second motor 103 magnet 111 and magnet 2 112 are rotated in the opposite direction. When the lifting plate 122 contacts the detection body 2, the push rod 162 squeezes the spring 161 and is reset to one side of the lifting plate 122. The positioning plate 71 is removed, and the internal cleaning part 7 can be removed. The number of adjustment parts 8 is determined according to the actual situation and is adjusted by the function knob 94.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] 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 mobile oil and gas recovery detector, comprising a mobile frame (1) and a detection body (2) and an oil tank body (3) arranged on both sides of the mobile frame (1), characterized in that: Also includes Pipeline 1 (13), the pipeline 1 (13) is arranged between the air outlet of the detection body (2) and the air inlet of the oil tank body (3); A second pipeline (14), the pipeline being arranged between the air inlet of the detection body (2) and the air outlet of the oil tank body (3); A connecting component (4), the connecting component (4) being arranged on the mobile frame (1), and being used to connect the first pipeline (13) and the second pipeline (14), and being switched according to the type of the fueling gun; A scraper (15), wherein a plurality of scrapers (15) are provided and are installed inside the first pipe (13) and the second pipe (14) respectively; A cleaning mechanism (6), the cleaning mechanism (6) being arranged on the movable frame (1), the cleaning mechanism (6) being used in conjunction with the first pipe (13) and the second pipe (14), and the cleaning mechanism (6) being used to drive the scraper (15) to shift and adjust, thereby cleaning the inner walls of the first pipe (13) and the second pipe (14); The connecting assembly (4) comprises a support seat (41) arranged on the mobile frame (1), an adapter (42) is installed on the support seat (41), a plurality of adapters (42) are provided to adapt to different types of fueling guns, and a switching member (5) is provided on the support seat (41), and the switching member (5) is used to drive the designated adapter (42) to cooperate with the fueling gun for use; The air outlet of the detection body (2) is provided with a valve (43), and the pipeline 1 (13) is connected to the air outlet of the detection body (2) through the valve (43); The switching member (5) comprises a fixing frame (51) rotatably mounted on a supporting seat (41); a plurality of adapters (42) are respectively mounted on the fixing frame (51); the pipeline 1 (13) is connected to an air inlet of the oil tank body (3) through the adapter (42); a first motor (52) is mounted on the supporting seat (41); an output end of the first motor (52) is connected to the fixing frame (51).

2. A mobile oil and gas recovery detector according to claim 1, characterized in that: The pipeline 1 (13) and the pipeline 2 (14) are both provided with a hard tube (61) on one side close to the detection body (2); the cleaning mechanism (6) comprises two cleaning parts (7) respectively arranged in the hard tube (61); the scrapers (15) are respectively arranged on the cleaning parts (7); the oil and gas inside the pipeline 1 (13) and the pipeline 2 (14) can be scraped by shifting the cleaning parts (7); the movable frame (1) is provided with a fixed plate (62); the fixed plate (62) is provided with a displacement assembly (10); the displacement assembly (10) is respectively connected to the two cleaning parts (7); the two cleaning parts (7) are driven to shift by the displacement assembly (10).

3. A mobile oil and gas recovery detector according to claim 2, characterized in that: The cleaning portion (7) comprises a positioning plate (71) arranged on the hard tube (61), a plurality of adjusting members (8) installed in the hard tube (61) are arranged in the hard tube (61), the scrapers (15) are respectively arranged on the adjusting members (8), and the adjusting members (8) are used to drive the plurality of scrapers (15) to adjust synchronously; Functional parts (9) are arranged on the plurality of adjusting parts (8), and the plurality of adjusting parts (8) can be connected and adjusted synchronously by means of the functional parts (9).

4. A mobile oil and gas recovery detector according to claim 3, characterized in that: The adjusting member (8) comprises a bidirectional screw rod (81) movably arranged in a hard tube (61), and both ends of the bidirectional screw rod (81) are respectively threadedly connected with a fixing ring (82), and a plurality of rotating rods (83) are rotatably arranged on the fixing ring (82), and the rotating rods (83) located on different fixing rings (82) are grouped in pairs, and an arc seat (84) is rotatably arranged on each group of rotating rods (83), and the scraper (15) is arranged on the arc seat (84).

5. A mobile oil and gas recovery detector according to claim 4, characterized in that: The two ends of the bidirectional screw rod (81) are respectively provided with polygonal grooves (91); the functional part (9) comprises a plurality of connecting sleeves (92) respectively arranged between two adjacent bidirectional screw rods (81); the connecting sleeves (92) are provided with locking bolts (93); and the bidirectional screw rod (81) at the end is provided with a functional knob (94) used in conjunction with the polygonal groove (91).

6. A mobile oil and gas recovery detector according to claim 5, characterized in that: The displacement assembly (10) comprises a screw rod (101) arranged on a fixed plate (62), a displacement rod (102) being threadedly connected to the screw rod (101), a second motor (103) being arranged on the movable frame (1), an output end of the second motor (103) being connected to the screw rod (101), a first driving member (11) being arranged on the displacement rod (102) near the pipe one (13), and the first driving member (11) is used to drive the scraper (15) in the pipe one (13) to shift; The displacement rod (102) is provided with a second driving member (12) near the second pipe (14), and the second driving member (12) is used to drive the scraper (15) in the second pipe (14) to shift.

7. A mobile oil and gas recovery detector according to claim 6, characterized in that: The first driving member (11) comprises a magnet 1 (111) arranged on the shift rod (102), a magnet 2 (112) for use in conjunction with the magnet 1 (111) being arranged on the magnet 1 (111), the magnet 1 (111) and the magnet 2 (112) being movably sleeved on the outside of the pipe 1 (13), and an inner magnet (113) for use in conjunction with the magnet 1 (111) and the magnet 2 (112) being arranged in the arc seat (84).

8. The mobile oil and gas recovery detector according to claim 7, characterized in that: The second driving member (12) comprises a sliding frame (121) arranged between the detection body (2) and the oil tank body (3); a lifting plate (122) is arranged on the sliding frame (121); a structure identical to the first magnet (111) and the second magnet (112) is slidably arranged on the lifting plate (122); the first magnet (111) and the second magnet (112) are movably sleeved on the outside of the second pipe (14); a structure identical to the inner magnet (113) is arranged in the arc seat (84); an elastic toggle member (16) is arranged on the shift rod (102); and the lifting plate (122) is shifted by using the elastic toggle member (16); The elastic toggle member (16) comprises a spring (161) arranged at the end of the shift rod (102), and a push rod (162) is arranged at the end of the spring (161).

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