Ball collecting equipment for crude oil transportation

Abstract

The invention belongs to the technical field of oil delivery, and particularly relates to crude oil delivery ball collecting equipment which comprises a connecting shell, an oil inlet pipe is fixed to one end of the connecting shell, an oil outlet pipe is fixed to the other end of the connecting shell, a ball collecting shell is fixed to one side of the connecting shell, and a direct drive motor is arranged in the ball collecting shell. A rotating cylinder is fixed to the end of a rotating shaft of the direct drive motor, a plurality of ball blocking plates are fixed to the outer portion of the rotating cylinder at equal intervals, a pushing assembly is arranged in the ball collecting shell, a connecting pipe is fixed to the top end of the ball collecting shell, a cleaning box is fixed to the other side of the connecting pipe, a ball distributing box is fixed to one side of the cleaning box, and a camera is installed on one side in the ball distributing box. A material distributing assembly is arranged in the ball distributing box. The surfaces of the cleaned paraffin removal balls are detected through a camera, the abraded paraffin removal balls can be recognized, a second motor drives a second rotating plate to rotate to discharge the abraded and completed paraffin removal balls from ball discharging openings in different directions, and therefore the abraded paraffin removal balls are automatically separated.

Description

Technical Field

[0001] This invention belongs to the field of petroleum transportation technology, specifically a crude oil transportation ball receiving device. Background Technology

[0002] Crude oil transportation is a crucial link in transporting crude oil from the extraction site to the refinery or storage facility. Long-distance, large-scale crude oil transportation over land usually uses pipelines, which have advantages such as low energy consumption, low cost, and high safety. However, crude oil contains a certain amount of paraffinic hydrocarbons. During transportation, paraffin crystals precipitate from the crude oil, causing wax to accumulate inside the pipeline and form a wax layer. To address this, dewaxing balls are used. The dewaxing balls move inside the pipeline and are recovered by ball collection equipment.

[0003] A patent application with publication number CN118719732A discloses an intelligent automatic ball collection device for dewaxing balls in oil pipelines, including a first pressure-reducing ball guide assembly, a second pressure-reducing ball guide assembly, and a third pressure-reducing ball guide assembly. Through the design of the first, second, and third pressure-reducing ball guide assemblies, the pressure inside the conveying assembly is gradually reduced, ensuring a smooth transition of the dewaxing balls from high pressure to low pressure and to a pressure-free state.

[0004] The above-mentioned technical solution involves the recovery of the dewaxing balls through the ball guide assembly and manual collection and cleaning during use. The operation is relatively cumbersome. In addition, the diameter of the dewaxing balls is slightly larger than the inner diameter of the pipe during use. Therefore, the dewaxing balls will wear down during the sliding dewaxing process in the pipe, making them unusable. However, it is difficult for the staff to know the condition of the dewaxing balls, which affects the dewaxing work.

[0005] Therefore, the present invention provides a ball receiving device for crude oil transportation. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: A ball receiving device for crude oil transportation according to the present invention includes a connecting shell, an oil inlet pipe fixed at one end of the connecting shell, an oil outlet pipe fixed at the other end of the connecting shell, a ball receiving shell fixed on one side of the connecting shell, a direct drive motor installed inside the ball receiving shell, a rotating cylinder fixed at the end of the rotating shaft of the direct drive motor, a plurality of ball baffles fixed at equal intervals outside the rotating cylinder, a pressure sensor installed at the connection between the rotating cylinder and the ball baffles, a material pushing assembly installed inside the ball receiving shell, a connecting pipe fixed at the top of the ball receiving shell, a cleaning box fixed on the other side of the connecting pipe, a ball separating box fixed on one side of the cleaning box, a camera installed on one side inside the ball separating box, and a material separating assembly installed inside the ball separating box. When a sphere enters the ball-separating box, its exterior is detected by a camera, and the ball-separating components separate spheres of different appearances into different positions.

[0008] Preferably, the material distribution assembly includes a second rotating plate rotatably connected to the lower part of the ball distribution box, a second motor is installed on one side of the ball distribution box, the end of the rotating shaft of the second motor is fixedly connected to the second rotating plate, and ball distribution boxes are provided on both sides of the ball distribution box.

[0009] Preferably, a through hole is provided in the middle of the second rotating plate, and a rotating roller is rotatably connected to the inner side of the through hole. A third motor is installed inside the second rotating plate, and the end of the rotating shaft of the third motor is fixedly connected to one end of the rotating roller. The system uses multiple rotating rollers to drive the ball to rotate in different directions, enabling the camera to detect the ball at multiple locations.

[0010] Preferably, a first motor is installed at the bottom of the cleaning tank, a rotating frame is fixed at the end of the shaft of the first motor, and a feeding port is opened on one side of the cleaning tank, which is connected to the inside of the ball-separating box.

[0011] Preferably, a water spray plate is installed at the top of the ball-distributing box, and a guide bucket is fixed at the bottom of the ball-distributing box.

[0012] Preferably, the ball receiving shell has a movable frame inside, and a semi-annular plate is fixed inside the movable frame. The two sides of the semi-annular plate are in contact with the inside of the ball receiving shell. A first hydraulic telescopic rod is installed on one side of the ball receiving shell. The output shaft end of the first hydraulic telescopic rod is fixedly connected to the movable frame. The direct drive motor is installed at the top of the movable frame. The rotating cylinder is rotatably connected inside the movable frame. The ball baffle has multiple rotating holes inside, and a first rotating plate is rotatably connected inside the rotating holes.

[0013] Preferably, a baffle is fixed on the side of the movable frame near the connecting housing, and the outer diameter of the baffle matches the inner diameter of the connection between the ball receiving shell and the connecting housing; When the first hydraulic telescopic rod pulls the ball-receiving plate completely into the ball-receiving shell, the plate fills the connection between the ball-receiving shell and the connecting shell.

[0014] Preferably, a connecting rod is fixed to one end of the first rotating plate, a gear is fixed to the other end of the connecting rod, a rack is meshed with one side of the multiple gears, a connector is fixed to one end of the rack, a top block is fixed to the top inside the movable frame, and a guide slope is provided at one end of the top block.

[0015] Preferably, a coil spring is fixed to the outside of the connecting rod, and the outer side of the coil spring is fixedly connected to the ball-blocking plate.

[0016] Preferably, the pushing assembly includes a second hydraulic telescopic rod installed at the bottom of the ball receiving shell, and a top plate is fixed to the output shaft end of the second hydraulic telescopic rod. The top plate is located below the connection port between the connecting pipe and the ball receiving shell.

[0017] The beneficial effects of this invention are as follows: 1. The crude oil conveying ball receiving device of the present invention uses a camera to detect the surface of the cleaned wax balls, which can identify worn wax balls. The second motor drives the second rotating plate to rotate and discharge the worn and finished wax balls from the ball discharge port in different directions, thereby realizing the automatic separation of worn wax balls.

[0018] 2. The crude oil conveying ball receiving device of the present invention separates the wax-removing balls from the crude oil through ball baffles. Multiple ball baffles can send the wax-removing balls into the ball receiving shell without affecting the flow of crude oil, and the wax-removing balls are cleaned by a cleaning box to realize automatic ball receiving. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the connecting shell in this invention; Figure 4 This is a schematic diagram of the rotating cylinder structure in this invention; Figure 5 This is a schematic diagram of the ball-blocking plate structure in this invention; Figure 6 yes Figure 5 Enlarged view of a portion of point A in the middle; Figure 7 This is a schematic diagram of the internal structure of the cleaning tank in this invention; Figure 8 This is a schematic diagram of the internal structure of the ball-distributing box in this invention.

[0021] In the diagram: 1. Connecting housing; 11. Oil inlet pipe; 12. Oil outlet pipe; 13. Ball receiving housing; 131. First hydraulic telescopic rod; 132. Moving frame; 133. Baffle; 134. Semi-circular plate; 135. Direct drive motor; 136. Rotating cylinder; 137. Ball baffle plate; 138. Rotating hole; 14. Cleaning tank; 141. Ball distribution box; 142. Connecting pipe; 143. Ball discharge port; 144. Guide bucket; 145. First motor; 146. Rotating frame; 147. Feeding port; 148. Second motor; 149. Water spray plate; 15. Top plate; 151. Second hydraulic telescopic rod; 16. First rotating plate; 161. Connecting rod; 162. Coil spring; 163. Gear; 164. Tooth rack; 165. Connector; 166. Top block; 167. Guide slope; 17. Camera; 171. Second rotating plate; 172. Rotating roller; 173. Third motor. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0023] like Figures 1 to 8 As shown in the embodiment of the present invention, a crude oil conveying ball receiving device includes a connecting shell 1, an oil inlet pipe 11 fixed at one end of the connecting shell 1, an oil outlet pipe 12 fixed at the other end of the connecting shell 1, a ball receiving shell 13 fixed on one side of the connecting shell 1, a direct drive motor 135 disposed inside the ball receiving shell 13, a rotating cylinder 136 fixed at the end of the rotating shaft of the direct drive motor 135, a plurality of ball baffles 137 fixed at equal intervals on the outside of the rotating cylinder 136, a pressure sensor disposed at the connection between the rotating cylinder 136 and the ball baffles 137, a material pushing assembly disposed inside the ball receiving shell 13, a connecting pipe 142 fixed at the top of the ball receiving shell 13, a cleaning box 14 fixed on the other side of the connecting pipe 142, a ball separating box 141 fixed on one side of the cleaning box 14, a camera 17 installed on one side inside the ball separating box 141, and a material separating assembly disposed inside the ball separating box 141. When a ball enters the ball distribution box 141, its exterior is detected by the camera 17, and the ball distribution component separates balls of different appearances into different positions. After crude oil is extracted, it needs to be transported. Land transportation uses pipelines. During transportation, the crude oil flows through the pipeline. Because crude oil contains a certain amount of paraffinic hydrocarbons, the wax will condense on the inner wall of the pipeline due to temperature changes. Therefore, it is necessary to regularly clean the inner wall of the pipeline using wax-removing balls. The wax-removing balls are inserted into the pipeline from the upstream. Under the pressure of the crude oil inside the pipeline, the wax-removing balls flow downstream. After the wax-removing balls have cleaned the inside of the pipeline, they need to be retrieved. The inlet pipe 11 and outlet pipe 12 are connected to the ends of two different pipeline sections, respectively. When the crude oil flows... At the same time, the oil flows into the interior of the connecting housing 1 through the inlet pipe 11, and is then transported to the interior of the outlet pipe 12 through the connecting housing 1. The oil is then transported to the interior of the second section of the pipeline through the outlet pipe 12. Simultaneously, the dewaxing ball enters the interior of the inlet pipe 11 from the pipeline and moves to the interior of the connecting housing 1. The baffle plate 137 is located inside the connecting housing 1. When the dewaxing ball contacts the baffle plate 137, the pressure sensor value of the baffle plate 137 increases. At this time, the direct drive motor 135 drives the rotating cylinder 136 to rotate. The rotating cylinder 136 drives the baffle plate 137, which is located inside the connecting housing 1, to move towards the inlet pipe 11. The direction is rotated, at which point the wax-removing ball can be pushed into the ball receiving shell 13. When the next set of ball baffles 137 rotates into the connecting shell 1, the pushing assembly pushes the wax-removing ball into the connecting pipe 142. Guided by the connecting pipe 142, the wax-removing ball slides into the cleaning tank 14. The cleaning tank 14 is equipped with water at a constant temperature of about 70°C. When the wax-removing ball enters the cleaning tank 14, the wax on its surface melts due to the water temperature. When the bottom of the wax-removing ball melts, its weight decreases, and the unmelted top rotates into the water to continue melting. Then, the cleaned wax-removing ball enters the ball separating box 141 through the cleaning tank 14. Inside, the camera 17 inspects the exterior of the wax cleaning balls, and the sorting component classifies the wax cleaning balls with worn appearance and those with normal appearance, storing them in different containers. When a worn wax cleaning ball is found, the corresponding number of wax cleaning balls need to be added to the container of normal wax cleaning balls, and the recycled wax cleaning balls are uniformly placed for subsequent use. During this process, which is within the ball collection interval, the above process is repeated once every time the ball baffle 137 takes a wax cleaning ball into the ball collection shell 13, thereby achieving the screening and classification of wax cleaning balls, thus preventing worn wax cleaning balls from affecting the cleaning effect.

[0024] like Figures 1 to 8 As shown, the material distribution assembly includes a second rotating plate 171 rotatably connected to the lower part of the ball distribution box 141. A second motor 148 is installed on one side of the ball distribution box 141. The end of the rotating shaft of the second motor 148 is fixedly connected to the second rotating plate 171. Ball distribution boxes 141 have ball volleying ports 143 on both sides. After the wax-removing balls enter the ball-sorting box 141, they stop at the top of the second rotating plate 171. When the camera 17 detects the wax-removing balls, the balls may be worn. At this time, the worn wax-removing balls will be detected. After detection, the wax-removing balls need to be sorted and discharged. At this time, the second motor 148 is started to drive the second rotating plate 171 to rotate. According to the detection result of the camera 17, the second motor 148 rotates in different directions. At this time, the second rotating plate 171 can discharge the wax-removing balls to the ball discharge port 143 in different directions, thereby realizing the sorting of materials according to the appearance of the wax-removing balls.

[0025] like Figures 1 to 8 As shown, a through hole is provided in the middle of the second rotating plate 171, and a rotating roller 172 is rotatably connected to the inside of the through hole. A third motor 173 is installed inside the second rotating plate 171, and the end of the rotating shaft of the third motor 173 is fixedly connected to one end of the rotating roller 172. Among them, multiple rotating rollers 172 drive the ball to rotate in different directions, enabling the camera 17 to detect multiple positions of the ball; When the camera 17 inspects the surface of the wax ball, it can only inspect in one direction. Therefore, a third motor 173 is set up to drive the rotating roller 172 to rotate. The rotating roller 172 can drive the wax ball to rotate in the through hole. At this time, the camera 17 can inspect more positions of the wax ball. The rotating roller 172 is divided into two groups, with each group consisting of two parallel rotating rollers 172. Each group of rotating rollers 172 rotates in the same direction, which allows the wax ball to rotate in multiple directions, thereby improving the inspection accuracy of the camera 17.

[0026] like Figures 1 to 7 As shown, a first motor 145 is installed at the bottom of the inside of the cleaning tank 14, and a rotating frame 146 is fixed at the end of the rotating shaft of the first motor 145. A feeding port 147 is opened on one side of the cleaning tank 14, and the feeding port 147 is connected to the inside of the ball-separating box 141. When the wax cleaning balls are being cleaned inside the cleaning tank 14, the first motor 145 drives the rotating frame 146 to rotate back and forth. At this time, the rotating frame 146 can drive the wax cleaning balls to roll inside the cleaning tank 14, making it easier to clean the outside of the wax cleaning balls. After the wax cleaning balls are cleaned, the rotating frame 146 drives them to be discharged from the feed port 147 into the ball distribution box 141 for further processing, thus achieving better cleaning of the wax cleaning balls.

[0027] like Figures 1 to 8 As shown, a water spray plate 149 is installed at the top of the ball distribution box 141, and a guide bucket 144 is fixed at the bottom of the ball distribution box 141. When the wax cleaning ball is moved from the inside of the cleaning tank 14 into the ball sorting tank 141, the water surface of the cleaning tank 14 is covered with melted wax, which causes some wax to adhere to the surface of the wax cleaning ball. Therefore, after the wax cleaning ball enters the ball sorting tank 141, water is sprayed by the water spray plate 149 to wash the wax off the surface of the wax cleaning ball, so that the camera 17 can detect the surface of the wax cleaning ball more accurately.

[0028] like Figures 1 to 6 As shown, a movable frame 132 is provided inside the ball receiving shell 13. A semi-annular plate 134 is fixed inside the movable frame 132. The two sides of the semi-annular plate 134 are in contact with the inside of the ball receiving shell 13. A first hydraulic telescopic rod 131 is installed on one side of the ball receiving shell 13. The output shaft end of the first hydraulic telescopic rod 131 is fixedly connected to the movable frame 132. A direct drive motor 135 is installed at the top of the movable frame 132. A rotating cylinder 136 is rotatably connected inside the movable frame 132. A plurality of rotating holes 138 are opened inside the ball blocking plate 137. A first rotating plate 16 is rotatably connected inside the rotating holes 138. When the dewaxing ball is delivered into the connecting housing 1 through the inlet pipe 11, crude oil will also enter the connecting housing 1. When the ball baffle 137 rotates, it will drive the crude oil into the receiving housing 13. To solve this problem, a rotating hole 138 is opened inside the ball baffle 137. When crude oil enters the connecting housing 1, it will flow towards the outlet pipe 12 through the rotating hole 138, while keeping the dewaxing ball inside the connecting housing 1. A first rotating plate 16 is set inside the rotating hole 138. The rotating hole 138 inside the connecting housing 1 is perpendicular to the first rotating plate 16. The first rotating plate 16 inside the receiving housing 13 is parallel to and coincides with the rotating hole 138. At this time, the inside of the rotating hole 138 can be closed, thereby isolating the receiving housing 13 from the connecting housing 1. This separates the internal spaces of the connecting housing 1 and the receiving housing 13 during use, preventing excessive crude oil from flowing into the receiving housing 13.

[0029] like Figures 1 to 3 As shown, a baffle 133 is fixed on the side of the movable frame 132 near the connecting housing 1. The outer diameter of the baffle 133 matches the inner diameter of the connection between the ball receiving shell 13 and the connecting housing 1. When the first hydraulic telescopic rod 131 pulls the ball-blocking plate 137 completely into the ball-collecting shell 13, the baffle plate 133 fills the connection between the ball-collecting shell 13 and the connecting shell 1. During use, the first hydraulic telescopic rod 131 pushes the moving frame 132 and the semi-circular plate 134 toward the connecting housing 1. During daily transportation, the ball baffle 137 will affect the flow rate of crude oil. At this time, the first hydraulic telescopic rod 131 is activated to pull the moving frame 132. The moving frame 132 drives the baffle 133 to retract toward the inside of the ball receiving shell 13. When the first hydraulic telescopic rod 131 is retracted to its shortest length, the baffle 133 is placed at the connection between the connecting housing 1 and the ball receiving shell 13, which can completely separate the inside of the connecting housing 1 from the inside of the ball receiving shell 13, thus making it easier to transport crude oil inside the connecting housing 1.

[0030] like Figures 1 to 6 As shown, a connecting rod 161 is fixed to one end of the first rotating plate 16, and a gear 163 is fixed to the other end of the connecting rod 161. A rack 164 is meshed with one side of the multiple gears 163. A connector 165 is fixed to one end of the rack 164. A top block 166 is fixed to the top of the inside of the movable frame 132. A guide slope 167 is provided at one end of the top block 166. When the ball baffle 137 rotates, the rotating hole 138 and the first rotating plate 16 only need to be opened inside the connecting housing 1. Therefore, a top block 166 is provided on the inner side of the moving frame 132. When the connector 165 rotates to the position of the guide slope 167, the connector 165 will drive the rack 164 to move under the guidance of the guide slope 167. When the connector 165 slides to the bottom of the top block 166, the rack 164 drives the gear 163 to rotate 90°. At this time, the gear 163 can drive the first rotating plate 16 to rotate 90° inside the rotating hole 138 through the connecting rod 161. At this time, the first rotating plate 16 and the rotating hole 138 will open, which can open the first rotating plate 16 inside the connecting housing 1 and the rotating hole 138, making it easier for the crude oil inside the connecting housing 1 to flow.

[0031] like Figures 1 to 6 As shown, a coil spring 162 is fixed to the outside of the connecting rod 161, and the outer side of the coil spring 162 is fixedly connected to the ball baffle 137. When the connector 165 is removed from the surface of the top block 166, the spring force of the coil spring 162 drives the connecting rod 161 to automatically reset the first rotating plate 16. The connecting rod 161 drives the rack 164 and the connector 165 to automatically reset through the gear 163, thereby closing the rotating hole 138 of the ball baffle 137 and the first rotating plate 16 inside the ball receiving shell 13. The ball baffle 137 can push the crude oil inside the ball receiving shell 13 back into the connecting shell 1 during rotation, thus automatically closing the rotating hole 138 and the first rotating plate 16.

[0032] like Figures 1 to 4As shown, the pushing assembly includes a second hydraulic telescopic rod 151 installed at the bottom of the ball receiving shell 13. The output shaft end of the second hydraulic telescopic rod 151 is fixed with a top plate 15, which is located below the connection port between the connecting pipe 142 and the ball receiving shell 13. When it is necessary to push the dewaxing ball from inside the ball receiving shell 13 into the connecting pipe 142, the second hydraulic telescopic rod 151 is activated to push the top plate 15 upward. At this time, the top plate 15 pushes the dewaxing ball into the connecting pipe 142. When the dewaxing ball enters the connecting pipe 142, it is guided into the cleaning tank 14 by the connecting pipe 142. At the same time, the connecting pipe 142 will guide the crude oil brought out when the dewaxing ball is removed from the ball receiving shell 13 back into the ball receiving shell 13, thereby facilitating the sending of the dewaxing ball into the connecting pipe 142.

[0033] The foregoing has shown and described 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 embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crude oil conveying ball receiving device, characterized in that: The device includes a connecting housing, one end of which is fixed with an oil inlet pipe, and the other end of which is fixed with an oil outlet pipe. A ball receiving shell is fixed to one side of the connecting housing. A direct drive motor is installed inside the ball receiving shell. A rotating cylinder is fixed to the end of the shaft of the direct drive motor. Multiple ball baffles are fixed at equal intervals outside the rotating cylinder. A pressure sensor is installed at the connection between the rotating cylinder and the ball baffles. A material pushing assembly is installed inside the ball receiving shell. A connecting pipe is fixed to the top of the ball receiving shell. A cleaning box is fixed to the other side of the connecting pipe. A ball separating box is fixed to one side of the cleaning box. A camera is installed on one side inside the ball separating box. A material separating assembly is installed inside the ball separating box. When a sphere enters the ball-separating box, its exterior is detected by a camera, and the ball-separating components separate spheres of different appearances into different positions.

2. The crude oil conveying ball receiving device according to claim 1, characterized in that: The material distribution assembly includes a second rotating plate rotatably connected to the lower part of the ball distribution box. A second motor is installed on one side of the ball distribution box, and the end of the rotating shaft of the second motor is fixedly connected to the second rotating plate. Ball distribution boxes are provided on both sides.

3. The crude oil conveying ball receiving device according to claim 2, characterized in that: The second rotating plate has a through hole in the middle, and a rotating roller is rotatably connected to the inside of the through hole. A third motor is installed inside the second rotating plate, and the end of the rotating shaft of the third motor is fixedly connected to one end of the rotating roller. The system uses multiple rotating rollers to drive the ball to rotate in different directions, enabling the camera to detect the ball at multiple locations.

4. A crude oil conveying ball receiving device according to claim 3, characterized in that: A first motor is installed at the bottom of the cleaning tank, and a rotating frame is fixed to the end of the shaft of the first motor. A feeding port is opened on one side of the cleaning tank, and the feeding port is connected to the inside of the ball-separating box.

5. A crude oil conveying ball receiving device according to claim 4, characterized in that: A water spray plate is installed at the top of the ball-distributing box, and a flow guide bucket is fixed at the bottom of the ball-distributing box.

6. The crude oil conveying ball receiving device according to claim 1, characterized in that: The ball receiving shell has a movable frame inside, and a semi-annular plate is fixed inside the movable frame. The two sides of the semi-annular plate are in contact with the inside of the ball receiving shell. A first hydraulic telescopic rod is installed on one side of the ball receiving shell. The output shaft end of the first hydraulic telescopic rod is fixedly connected to the movable frame. The direct drive motor is installed at the top of the movable frame. The rotating cylinder is rotatably connected inside the movable frame. The ball-blocking plate has multiple rotating holes inside, and a first rotating plate is rotatably connected inside the rotating holes.

7. A crude oil conveying ball receiving device according to claim 6, characterized in that: A baffle is fixed on the side of the movable frame near the connecting housing, and the outer diameter of the baffle matches the inner diameter of the connection between the ball receiving shell and the connecting housing. When the first hydraulic telescopic rod pulls the ball-receiving plate completely into the ball-receiving shell, the plate fills the connection between the ball-receiving shell and the connecting shell.

8. A crude oil conveying ball receiving device according to claim 7, characterized in that: A connecting rod is fixed to one end of the first rotating plate, and a gear is fixed to the other end of the connecting rod. A toothed bar is meshed with one side of the multiple gears, and a connecting head is fixed to one end of the toothed bar. A top block is fixed to the top of the inside of the movable frame, and a guide slope is provided at one end of the top block.

9. A crude oil conveying ball receiving device according to claim 8, characterized in that: A coil spring is fixed to the outside of the connecting rod, and the outer side of the coil spring is fixedly connected to the ball-blocking plate.

10. A crude oil conveying ball receiving device according to claim 1, characterized in that: The pushing assembly includes a second hydraulic telescopic rod installed at the bottom of the ball receiving shell. The output shaft end of the second hydraulic telescopic rod is fixed with a top plate, which is located below the connection port between the connecting pipe and the ball receiving shell.

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