Loading arm and oil loading system

Abstract

The invention provides a loading arm and an oil loading system, and belongs to the technical field of fluid loading and unloading. The crane pipe comprises a crane pipe body, an oil inlet pipe, a movable crane pipe, an oil stopper, a motor and a transmission part. When oil loading operation is carried out, the oil inlet pipe is connected with the oil storage tank, the motor drives the movable crane pipe to stretch out of the crane pipe body through the transmission component, an oil inlet of the movable crane pipe is located in the oil outlet direction of the oil inlet pipe, and meanwhile an oil outlet of the movable crane pipe stretches into the oil loading tank in the oil tank truck. Due to the fact that the movable crane pipe is in sliding connection with the crane pipe body, the motor can control the extending length of the movable crane pipe according to the height of an oil tank of an oil loading point, and the crane pipe can be suitable for oil loading operation from oil loading points of different heights.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid loading and unloading, and in particular to a crane pipe and an oil loading system. Background Art

[0002] In oilfield production, when filling oil at a filling point, it is necessary to connect the oil inlet of the crane pipe with the oil storage tank at the filling point, and extend the oil outlet of the crane pipe into the oil filling tank in the tank truck, so that the oil storage tank fills oil into the oil filling tank.

[0003] However, in the related art, the heights of various oil filling points are different. If the height of the oil filling point is higher, the oil inlet of the crane pipe also needs to be raised, that is, the entire crane pipe needs to be raised, so that the oil outlet of the crane pipe is far away from the bottom of the oil storage tank, which can easily cause oil splashing, etc. Summary of the invention

[0004] The present disclosure provides a crane pipe and an oil filling system, which can solve the technical problems existing in the related technologies. The technical solution of the crane pipe is as follows:

[0005] In a first aspect, the present disclosure provides a crane pipe, the crane pipe comprising a crane pipe body, an oil inlet pipe, a movable crane pipe, an oil blocker, a motor and a transmission component;

[0006] The oil inlet pipe is connected to the side wall of the crane pipe body and communicates with the interior of the crane pipe body;

[0007] The movable lifting pipe is located inside the lifting pipe body and is slidably connected to the lifting pipe body. The upper end of the movable lifting pipe has an oil inlet, and the lower end has an oil outlet. When the lifting pipe is in an oil filling state, the oil inlet is located in the oil outlet direction of the oil inlet pipe.

[0008] The oil blocker is located between the crane pipe body and the movable crane pipe, and is located in the oil outlet direction of the oil inlet pipe, and the oil blocker is used to close the gap between the crane pipe body and the movable crane pipe;

[0009] The motor is used to drive the mobile crane tube to extend and retract through the transmission component.

[0010] In a possible implementation, the crane pipe body is made of nickel-chromium alloy.

[0011] In a possible implementation, the movable crane tube is made of an antistatic aluminum tube.

[0012] In a possible implementation, the length of the movable crane tube is smaller than the length of the crane tube body.

[0013] In a possible implementation, the length of the crane pipe body is 2.5 m, and the length of the mobile crane pipe is 2.3 m.

[0014] In a possible implementation, the outer wall of the mobile crane tube has a rack structure, and the rack structure extends along the axial direction of the mobile crane tube;

[0015] The transmission component comprises a gear, the gear is transmission-connected to the motor, and the gear is meshed with the rack structure.

[0016] In a possible implementation, the transmission component further includes a worm, a worm wheel and a transmission shaft;

[0017] The worm is transmission-connected to the motor, the worm is transmission-connected to the worm wheel, the worm wheel is connected to the transmission shaft, and the transmission shaft is connected to the gear.

[0018] In a possible implementation manner, a diameter of the gear is greater than a diameter of the worm gear.

[0019] In a possible implementation, the axis of the worm is parallel to the axis of the movable crane tube.

[0020] In a possible implementation manner, the rotation speed of the transmission shaft is lower than the rotation speed of the motor.

[0021] In a possible implementation, the gear is located below the oil inlet pipe.

[0022] In a possible implementation, the transmission component further includes a box;

[0023] The box body is connected to the crane pipe body, and the box body and the oil inlet pipe are arranged in a staggered manner;

[0024] The gear, the worm, the worm wheel and the transmission shaft are located inside the housing, and the motor is fixed outside the housing.

[0025] In a possible implementation, the crane pipe further includes a first oil scraper;

[0026] The first oil scraper is fixed to the upper end of the movable lifting pipe and surrounds the movable lifting pipe, and the outer wall of the first oil scraper abuts against the inner wall of the lifting pipe body.

[0027] In a possible implementation manner, a first sealing ring is provided on an inner wall of the first oil scraper.

[0028] In a possible implementation, the crane pipe further includes a second oil scraper;

[0029] The second oil scraper is fixed to the inner wall of the lifting pipe body and is located in the oil outlet direction of the oil inlet pipe. The second oil scraper is against the outer wall of the movable lifting pipe.

[0030] In a possible implementation manner, a second sealing ring is provided on the inner wall of the second oil scraper.

[0031] In a possible implementation, the oil blocker is fixed to the inner wall of the crane pipe body and is located below the second oil scraper.

[0032] In a possible implementation manner, a third sealing ring is provided inside the oil baffle.

[0033] In a second aspect, the present disclosure provides an oil filling system, which includes an oil storage tank, a tanker truck, and a crane pipe as described in any one of the first aspects.

[0034] The technical solution provided by the present disclosure includes at least the following beneficial effects:

[0035] The present disclosure provides a crane pipe. When performing an oil filling operation, the oil inlet pipe is connected to the oil storage tank, and the motor drives the mobile crane pipe to extend from the crane pipe body through the transmission component, so that the oil inlet of the mobile crane pipe is located in the oil outlet direction of the oil inlet pipe, and the oil outlet of the mobile crane pipe is extended into the oil tank in the tank truck. Since the mobile crane pipe is slidably connected to the crane pipe body, the motor can control the length of the mobile crane pipe extending from the crane pipe body according to the height of the oil tank at the oil filling point, so that the crane pipe can be suitable for oil filling operations from oil filling points at different heights.

[0036] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the description, are used to explain the principles of the present disclosure. In the drawings:

[0038] Figure 1 is a structural schematic diagram of a crane pipe shown in an embodiment of the present disclosure;

[0039] Figure 2 is a structural schematic diagram of a crane pipe shown in an embodiment of the present disclosure;

[0040] Figure 3 is a cross-sectional view of a crane pipe shown in an embodiment of the present disclosure;

[0041] Figure 4 is a cross-sectional view of a crane pipe shown in an embodiment of the present disclosure;

[0042] Figure 5 is a structural schematic diagram of a mobile crane pipe and a transmission mechanism shown in an embodiment of the present disclosure;

[0043] Figure 6is a structural schematic diagram of a motor and a transmission mechanism shown in an embodiment of the present disclosure;

[0044] Figure 7 It is a structural schematic diagram of a crane pipe shown in an embodiment of the present disclosure.

[0045] Legend:

[0046] 1. Crane tube body;

[0047] 2. Oil inlet pipe;

[0048] 3. Mobile crane pipe, 31. Oil inlet, 32. Oil outlet, 33. Rack structure;

[0049] 4. Oil blocker, 41. Third sealing ring;

[0050] 5. Motor;

[0051] 6. Transmission parts, 61. Gear, 62. Worm, 63. Worm wheel, 64. Transmission shaft, 65. Box;

[0052] 7. a first oil scraper, 71. a first sealing ring;

[0053] 8. Second oil scraper. 81. Second sealing ring.

[0054] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0056] The terms used in the embodiments of the present disclosure are only used to explain the embodiments of the present disclosure, and are not intended to limit the present disclosure. Unless otherwise defined, the technical terms or scientific terms used herein should be understood by people with ordinary skills in the field to which the present disclosure belongs. The words "first", "second", "third" and similar words used in the patent application specification and claims of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limit, but indicate that there is at least one. Words such as "include" or "include" mean that the elements or objects appearing in front of "include" or "include" include the elements or objects listed after "include" or "include" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0057] In oilfield production, when filling oil at a filling point, it is necessary to connect the oil inlet of the crane pipe with the oil storage tank at the filling point, and extend the oil outlet of the crane pipe into the oil filling tank in the tank truck, so that the oil storage tank fills oil into the oil filling tank.

[0058] However, in the related art, the heights of various oil filling points are different. If the height of the oil filling point is higher, the oil inlet of the crane pipe also needs to be raised, that is, the entire crane pipe needs to be raised, so that the oil outlet of the crane pipe is far away from the bottom of the oil storage tank, which can easily cause oil splashing, etc.

[0059] In addition, the crane pipe in the related technology requires the cooperation of multiple operators to complete installation and disassembly, which is labor-intensive.

[0060] In view of the above technical problems, the present disclosure provides a crane pipe, such as Figure 1 and Figure 2 As shown, the crane pipe includes a crane pipe body 1, an oil inlet pipe 2, a mobile crane pipe 3, an oil blocker 4, a motor 5 and a transmission component 6. The oil inlet pipe 2 is connected to the side wall of the crane pipe body 1, and is communicated with the interior of the crane pipe body 1. The mobile crane pipe 3 is located inside the crane pipe body 1, and is slidably connected to the crane pipe body 1. The upper end of the mobile crane pipe 3 has an oil inlet 31, and the lower end has an oil outlet 32, wherein, when the crane pipe is in an oil filling state, the oil inlet 31 is located in the oil outlet direction of the oil inlet pipe 2. The oil blocker 4 is located between the crane pipe body 1 and the mobile crane pipe 3, and is located in the oil outlet direction of the oil inlet pipe 2, and the oil blocker 4 is used to close the gap between the crane pipe body 1 and the mobile crane pipe 3. The motor 5 is used to drive the mobile crane pipe 3 to extend and retract through the transmission component 6.

[0061] Among them, Figure 1 and Figure 3 As shown, when the crane is not filling oil, the movable crane 3 is completely located inside the crane body 1. Figure 2 and Figure 4 As shown, when filling oil, the motor 5 drives the movable crane tube 3 downward, so that the movable crane tube 3 extends out of the crane tube body 1. After the oil filling is completed, the motor 5 drives the movable crane tube 3 upward, so that the movable crane tube 3 is retracted into the crane tube body 1.

[0062] The crane pipe body 1 is processed by boring the cylinder, so that the friction force of the inner wall of the crane pipe body 1 is small. The material of the crane pipe body 1 can be nickel-chromium alloy, the outer diameter can be 150mm, and the length can be 2.5m.

[0063] The material of the mobile crane pipe 3 can be a non-ferrous metal aluminum tube, and the metal aluminum tube is an anti-static aluminum tube, so as to meet the explosion-proof requirements. The outer diameter of the mobile crane pipe 3 can be 100mm and the length can be 2.3m.

[0064] There is a sealing ring between the crane pipe body 1 and the movable crane pipe 3 to ensure good sealing.

[0065] A straightening belt is provided between the crane pipe body 1 and the mobile crane pipe 3 to prevent the mobile crane pipe 3 from shaking when it is extended and retracted in the crane pipe body 1 , thereby ensuring the centering of the mobile crane pipe 3 .

[0066] According to the technical solution provided by the embodiment of the present disclosure, when performing the oil filling operation, the oil inlet pipe 2 is connected to the oil storage tank, and the motor 5 drives the mobile crane pipe 3 to extend from the crane pipe body 1 through the transmission component 6, so that the oil inlet 31 of the mobile crane pipe 3 is located in the oil outlet direction of the oil inlet pipe 2, and the oil outlet 32 ​​of the mobile crane pipe 3 is extended into the oil tank in the tank truck. Since the mobile crane pipe 3 is slidably connected to the crane pipe body 1, the motor 5 can control the extended length of the mobile crane pipe 3 according to the height of the oil pipe at the oil filling point, so that the crane pipe can be suitable for oil filling operations from oil filling points at different heights.

[0067] In addition, the structure of the crane pipe provided in the embodiment of the present disclosure is relatively simple and does not need to be disassembled before and after oil filling, thereby reducing the labor intensity of operators and the number of workers, thereby further reducing labor costs.

[0068] The following is an exemplary description of the implementation of the transmission component 6:

[0069] In some examples, such as Figure 4 As shown, the outer wall of the mobile crane tube 3 has a rack structure 33, and the rack structure 33 extends along the axial direction of the mobile crane tube 3. The transmission component 6 includes a gear 61, which is transmission-connected to the motor 5, and the gear 61 is meshed with the rack structure 33.

[0070] The motor 5 drives the gear 61 to rotate, so that the gear 61 drives the rack structure 33 to move up and down, that is, the mobile crane tube 3 moves up and down. In this way, when the operator uses the crane tube, he only needs to start the motor 5 to realize the extension and retraction of the mobile crane tube 3, so that the crane tube can be filled with oil at different heights of the oil filling points, thereby reducing the labor intensity of the operator.

[0071] In some examples, such as Figure 5 As shown, the transmission component 6 also includes a worm 62, a worm wheel 63 and a transmission shaft 64. The worm 62 is transmission-connected to the motor 5, the worm 62 is transmission-connected to the worm wheel 63, the worm wheel 63 is connected to the transmission shaft 64, and the transmission shaft 64 is connected to the gear 61.

[0072] The output shaft of the motor 5 has a relatively high rotation speed. Under a fixed output power, the higher the rotation speed of the motor 5, the smaller the output torque. However, a relatively small torque is difficult to drive the mobile crane 3. The worm 62 and the worm wheel 63 can be regarded as a reduction mechanism. The output shaft of the motor 5 is connected to the worm 62 in a transmission manner. After the worm 62 and the worm wheel 63 reduce the speed, a relatively large torque can be output and transmitted to the gear 61, so that the gear 61 can drive the mobile crane 3 through the rack structure 33.

[0073] Since the worm gear 63 is connected to the transmission shaft 64 , it can be understood that the rotation speed of the transmission shaft 64 is lower than the rotation speed of the motor 5 .

[0074] In some examples, the gear 61 and the transmission shaft 64 may be connected to each other through interference fit, or through splines and keys, etc., and the embodiments of the present disclosure do not specifically limit this.

[0075] In some examples, the worm gear 63 and the transmission shaft 64 may be connected to each other through interference fit, or through splines and keys, etc., and the embodiments of the present disclosure do not specifically limit this.

[0076] In some examples, the diameter of the gear 61 is greater than the diameter of the worm wheel 63. Since the gear 61 and the worm wheel 63 rotate coaxially, the rotation speeds of the gear 61 and the worm wheel 63 are equal, and the diameter of the gear 61 is greater than the diameter of the worm wheel 63, so that the linear velocity of the edge of the gear 61 is greater than the linear velocity of the worm wheel 63, so that the gear 61 can drive the movement of the mobile crane 3 at a faster speed and a larger torque, so that the mobile crane 3 has a faster moving speed.

[0077] In addition, the diameter of the gear 61 is larger than the diameter of the worm wheel 63 , which can also avoid interference between the worm wheel 63 and the movable lifting pipe 62 .

[0078] In some examples, such as Figure 6As shown, the axis of the worm 62 is parallel to the axis of the mobile crane tube 3. In this way, the worm 62 and the motor 5 can be arranged along the axial direction of the crane tube, so that the space occupied by the worm 62 in the direction perpendicular to the axis of the crane tube is small.

[0079] In some examples, such as Figure 1 As shown, the transmission component 6 is located below the oil inlet pipe 2, so the gear 61 is located below the oil inlet pipe 2. In this way, the gear 61 can drive the oil inlet 31 of the mobile crane pipe 3 to the oil outlet direction of the oil inlet pipe 2, that is, drive the oil inlet 31 to the bottom of the oil inlet pipe 2, so that the oil in the oil inlet pipe 2 can smoothly enter the mobile crane pipe 3 through the oil inlet 31, and then enter the oil tanker.

[0080] If the gear 61 is located above the oil inlet pipe 2, even if the gear 61 drives the movable lifting pipe 3 to move to the limit position, that is, the gear 61 contacts the uppermost end of the movable lifting pipe 3, the oil inlet port 31 cannot be located below the oil inlet pipe 2. In this way, the oil in the oil inlet pipe 2 cannot flow into the movable lifting pipe 3, and the oil filling operation cannot be completed.

[0081] In some examples, such as Figure 6 As shown, the transmission component 6 also includes a box 65. The box 65 is connected to the crane body 1, and the box 65 is staggered with the oil inlet pipe 2. The gear 61, the worm 62, the worm wheel 63 and the transmission shaft 64 are located inside the box 65, and the motor 5 is fixed outside the box 65.

[0082] The box 65 is connected to the interior of the crane body 1, so that the gear 61 located in the box 65 can mesh with the rack structure 33 on the mobile crane 3. The gear 61, the worm 62, the worm wheel 63 and the transmission shaft 64 are enclosed in the box 65, which can prevent impurities outside the crane from entering the gear 61, the worm 62, the worm wheel 63 and the transmission shaft 64, so that the transmission component 6 can operate normally, and the stability of the transmission component 6 is improved.

[0083] In some examples, the motor 5 includes a magnetic switch, and the magnetic switch and the encoder of the motor can jointly control the upper and lower limit positions of the mobile crane tube 3, thereby forming a double insurance.

[0084] Below, an exemplary method of scraping oil from the inside of the crane pipe is described:

[0085] In some examples, such as Figure 3 and Figure 4 As shown, the crane pipe also includes a first oil scraper 7. The first oil scraper 7 is fixed to the upper end of the movable crane pipe 3 and surrounds the movable crane pipe 3. The outer wall of the first oil scraper 7 abuts against the inner wall of the crane pipe body 1. Figure 6 As shown, a first sealing ring 71 is provided on the outer wall of the first oil scraper 7 .

[0086] In some examples, a groove is provided on the outer wall of the first oil scraper 7 , and the first sealing ring 71 is fixed in the groove.

[0087] When the crane pipe completes the oil filling operation, the movable crane pipe 3 moves upward in the crane pipe body 1 , which can drive the first oil scraper 7 and the first sealing ring 71 to move upward, thereby scraping off the oil on the inner wall of the crane pipe body 1 .

[0088] Among them, Figure 7 As shown, the number of the first sealing rings 71 can be two, so as to scrape off the oil on the inner wall of the crane pipe body 1 as much as possible.

[0089] In some examples, the inner wall of the first oil scraper 7 has threads, and the first oil scraper 7 is threadedly connected to the movable lifting pipe 3 .

[0090] In some other examples, the first oil scraper 7 and the movable lifting pipe 3 may also be interference fit.

[0091] In some examples, when the first oil scraper 7 falls on the top of the second oil scraper 8, the vertical distance between the top end of the first oil scraper 7 and the lower end of the oil inlet pipe 2 is less than 10 cm.

[0092] In some examples, the bottom end of the first scraper 7 has a groove, and an O-ring is installed in the groove. When the first scraper 7 falls on the top of the second scraper 8, the O-ring can play a role in sealing, buffering and preventing impact and electrostatic sparking.

[0093] In some examples, such as Figure 2 and Figure 3 As shown, the crane pipe also includes a second oil scraper 8, which is fixed on the inner wall of the crane pipe body 1 and is located in the oil outlet direction of the oil inlet pipe 2. Figure 6 As shown, the inner wall of the second oil scraper 8 has a second sealing ring 81. When the crane tube completes the oil filling operation, when the mobile crane tube 3 moves upward in the crane tube body 1, the second oil scraper 8 can scrape off the oil on the outer wall of the mobile crane tube 3 to prevent the residual oil on the outer wall of the mobile crane tube 3 from dripping to the outside of the crane tube.

[0094] Among them, Figure 6 As shown, the number of the second sealing rings 81 may be four, so as to scrape off the oil on the outer wall of the movable lifting pipe 3 as much as possible.

[0095] In some examples, the inner wall of the second oil scraper 8 has a groove, and the second sealing ring 81 is fixed in the groove.

[0096] In some examples, the outer wall of the second oil scraper 8 has a thread and is threadedly connected to the crane body 1. Of course, in other examples, the second oil scraper 8 and the crane body 1 may also be an interference fit.

[0097] In some examples, the outer diameter of the second oil scraper 8 is 125 mm.

[0098] In some examples, such as Figure 2 , Figure 3 and Figure 6 As shown, the oil blocker 4 is fixed on the inner wall of the crane body 1 and is located below the second oil scraper 8. A third sealing ring 41 is provided on the inner wall of the oil blocker 4.

[0099] When the crane pipe completes the oil filling operation, when the mobile crane pipe 3 moves upward in the crane pipe body 1, the first oil scraper 7 scrapes off the oil on the inner wall of the crane pipe body 1, and the second oil scraper 8 scrapes off the oil on the outer wall of the mobile crane pipe 3. The oil blocker 4 is provided to prevent the scraped oil from dripping directly onto the outside of the crane pipe, thereby preventing the oil from polluting the environment.

[0100] Among them, the number of the third sealing rings 41 can be four, so as to improve the sealing between the crane pipe body 1 and the mobile crane pipe 3.

[0101] In some examples, a groove is provided on the inner wall of the oil blocker 4, and the third sealing ring 41 is fixed in the groove.

[0102] In some examples, the outer wall of the oil blocker 4 has threads, and the oil blocker 4 is threadedly connected to the crane body 1 .

[0103] In other examples, the oil blocker 4 and the crane body 1 are interference fit.

[0104] In some examples, an oil filling chamber is provided between the second oil scraper 8 and the oil blocker 4, and an oil filling port is provided on the side wall of the oil filling chamber. Lubricating oil can be added to the oil filling chamber through the oil filling port, and when the movable crane tube 3 moves up and down, the crane tube body 1 and the tube wall of the movable crane tube 3 can be lubricated.

[0105] In some examples, the oil blocker 4 , the first oil scraper 7 , and the second oil scraper 8 are made of metal, such as 45# steel.

[0106] In addition, the oil blocker 4 , the first oil scraper 7 and the second oil scraper 8 can also play a role in straightening the movable crane pipe 3 .

[0107] The disclosed embodiment also provides an oil filling system, which includes an oil storage tank, an oil tanker and the above-mentioned crane pipe.

[0108] Among them, the oil storage tank is the oil tank at the oil filling point, and the crane pipe is used to load the oil in the oil tank into the oil filling tank in the tank truck.

[0109] When performing oil filling operation, the oil inlet pipe 2 of the crane pipe is connected to the oil storage tank, the oil outlet 32 ​​of the mobile crane pipe 3 is connected to the oil filling tank on the tanker, and the oil outlet 32 ​​should be less than 20 cm from the bottom of the oil filling tank.

[0110] The working process of the oil filling system is described below by way of example.

[0111] Before oil filling operation, Figure 2 As shown, the movable crane tube 3 is located inside the crane tube body 1 .

[0112] When performing the oil filling operation, the oil inlet pipe 2 is connected to the oil storage tank, and then the motor 5 is used to control the length of the mobile crane pipe 3 extending from the crane pipe body 1 according to the height of the oil storage tank and the distance between the oil storage tank and the tanker truck, until the first oil scraper 7 on the mobile crane pipe 3 falls on the second oil scraper 8, and then the oil filling operation is performed.

[0113] After the oil filling is completed, the motor 5 is used to control the movable crane tube 3 to retract into the crane tube body 1.

[0114] The oil filling system provided by the embodiment of the present disclosure has a crane pipe comprising a crane pipe body 1 and a mobile crane pipe 3, and the mobile crane pipe 3 can be retracted in the crane pipe body 1. Therefore, the motor 5 can control the extended length of the mobile crane pipe 3 according to the height of the oil storage tank at the oil filling point, so that the crane pipe can be suitable for oil filling operations from oil filling points at different heights.

[0115] The above description is only an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A crane pipe, characterized in that: The crane pipe comprises a crane pipe body (1), an oil inlet pipe (2), a movable crane pipe (3), an oil blocker (4), a motor (5) and a transmission component (6); The oil inlet pipe (2) is connected to the side wall of the crane pipe body (1) and is communicated with the interior of the crane pipe body (1); The movable lifting pipe (3) is located inside the lifting pipe body (1) and is slidably connected to the lifting pipe body (1). The upper end of the movable lifting pipe (3) has an oil inlet (31) and the lower end has an oil outlet (32). When the lifting pipe is in an oil filling state, the oil inlet (31) is located in the oil outlet direction of the oil inlet pipe (2); The oil blocker (4) is located between the crane pipe body (1) and the movable crane pipe (3), and is located in the oil outlet direction of the oil inlet pipe (2). The oil blocker (4) is used to close the gap between the crane pipe body (1) and the movable crane pipe (3); The motor (5) is used to drive the movable crane tube (3) to extend and retract via the transmission component (6).

2. The crane pipe according to claim 1, characterized in that: The outer wall of the movable crane tube (3) has a rack structure (33), and the rack structure (33) extends along the axial direction of the movable crane tube (3); The transmission component (6) comprises a gear (61), the gear (61) is transmission-connected to the motor (5), and the gear (61) is meshed with the rack structure (33).

3. The crane pipe according to claim 2, characterized in that: The transmission component (6) further comprises a worm (62), a worm wheel (63) and a transmission shaft (64); The worm (62) is connected to the motor (5) in a transmission manner, the worm (62) is connected to the worm wheel (63) in a transmission manner, the worm wheel (63) is connected to the transmission shaft (64), and the transmission shaft (64) is connected to the gear (61).

4. The crane pipe according to claim 3, characterized in that: The diameter of the gear (61) is greater than the diameter of the worm wheel (63).

5. The crane pipe according to claim 3, characterized in that: The axis of the worm (62) is parallel to the axis of the movable crane tube (3).

6. The crane pipe according to claim 3, characterized in that: The rotation speed of the transmission shaft (64) is lower than the rotation speed of the motor (5).

7. The crane pipe according to any one of claims 2 to 6, characterized in that: The gear (61) is located below the oil inlet pipe (2).

8. The crane pipe according to any one of claims 2 to 6, characterized in that: The transmission component (6) further includes a box (65); The box body (65) is connected to the crane pipe body (1), and the box body (65) and the oil inlet pipe (2) are arranged in a staggered manner; The gear (61), the worm (62), the worm wheel (63) and the transmission shaft (64) are located inside the box (65), and the motor (5) is fixed outside the box (65).

9. The crane pipe according to claim 1, characterized in that: The crane pipe further comprises a first oil scraper (7); The first oil scraper (7) is fixed to the upper end of the movable lifting pipe (3) and surrounds the movable lifting pipe (3), and the outer wall of the first oil scraper (7) abuts against the inner wall of the lifting pipe body (1).

10. An oil filling system, characterized in that: The oil loading system comprises an oil storage tank, a tanker truck and a crane pipe as described in any one of claims 1-9.

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