A multi-functional flip-type hydraulic elevating bowl

Abstract

A multifunctional flip-type hydraulic elevator, belonging to the technical field of oil elevator, is to solve the problem that it is impossible to simultaneously detect and feedback multiple signals such as the signal of the power elevator carrying the pipe string, the signal of the pipe string entering the power elevator, the signal of the power elevator opening, and the signal of the power elevator closing; the present invention detects whether the elevator body is opened through the third trigger mechanism, detects whether the elevator body is carrying the pipe string through the first trigger mechanism, detects whether the pipe string enters the elevator body through the second trigger mechanism, detects whether the elevator body is closed through the fourth trigger mechanism, and the power drive mechanism judges how to drive and control the left valve, the right valve and the latch according to the signal. Through the fifth trigger mechanism, the latch can be self-locked under the carrying state of the elevator body to prevent the accidental opening of the elevator body and further improve the safety.

Description

Technical Field

[0001] The present invention relates to the technical field of oil elevators, and particularly relates to a multi-functional flip-type hydraulic elevator. Background Art

[0002] Power elevators are important devices for suspending pipe strings such as drill pipes, tubing, casing pipes, and drill collars. Their performance directly affects the efficiency and safety of drilling and workover operations. Traditional elevators often have low automation levels and high on-site labor intensity. With the urgent need of oilfields to reduce the labor intensity of operators, improve operation safety, and improve work efficiency, the demand for high-automation and high-safety power elevators in the current market is increasing day by day.

[0003] In view of the above problems, Chinese Patent, publication number CN211397499U, discloses a power elevator, which states that "it includes an elevator body and a power device installed inside the elevator body. The elevator body includes an elevator main body, a left valve, a right valve, a lining, a latch, and an insurance mechanism. The left valve and the right valve are respectively movably connected to both ends of the elevator main body. A lining is provided inside the elevator main body, the left valve, and the right valve. A latch is movably connected to the left valve, a latch groove corresponding to the latch is provided on the right valve, and a movable insurance mechanism is provided on the right valve, and the insurance mechanism contacts the lower end surface of the lining. The insurance mechanism includes an insurance pin, an insurance lever, a safety pin, and a compression spring. The power device includes a power unit, a control cable, a control box, a control valve, a valve driving cylinder, a latch driving cylinder, and a power link mechanism".

[0004] Although the power device is integrated inside the power elevator body in this prior art, realizing the automatic control of the power elevator, and an insurance mechanism is provided to automatically prevent the accidental opening of the latch, its overall operation safety and automation level are still average. It cannot simultaneously detect and feedback multiple signals such as the signal of the pipe string carried by the power elevator, the signal of the pipe string entering the power elevator, the signal of the power elevator opening, and the signal of the power elevator closing. Moreover, the power elevator is generally hoisted by a flipping mechanism. When the power elevator is used in cooperation with wellhead equipment, the angle control and adjustment of its flipping mechanism are not precise enough, resulting in unstable docking.

[0005] To solve the above problems, a multi-functional flip-type hydraulic elevator is proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-functional flip-type hydraulic elevator, which solves the problems that the overall operation safety and automation level of the power elevator in the background art are average, and the angle control and adjustment of its flipping mechanism are not precise enough when the power elevator is used in cooperation with wellhead equipment.

[0007] To achieve the above object, the present invention provides the following technical solution: a multifunctional flip-type hydraulic elevator clamp, comprising an elevator clamp main body, a left valve, a right valve, a latch, a flipping mechanism, a lining assembly, a self-locking mechanism, a sensing assembly, a triggering device, and a power driving mechanism electrically connected to the sensing assembly. A pin is provided on the elevator clamp main body, and the elevator clamp main body is hinged to the left valve and the right valve through the pin. The lining assembly is arranged inside the elevator clamp main body, the left valve, and the right valve. The left valve is hinged with a latch through a pin, and a latching surface corresponding to the latch is provided on the right valve for engaging the latch when closed. Blocks are provided on both sides of the elevator clamp main body, and mounting shafts are provided on the blocks. Two groups of flipping mechanisms are provided, and the two groups of flipping mechanisms are arranged on both sides of the elevator clamp main body.

[0008] Further, the lining assembly includes a first lining arranged on one side of the elevator clamp main body close to the left valve. The lining assembly further includes a second lining, a third lining, and a fourth lining. The second lining is arranged at a position on the inner side of the elevator clamp main body close to the right valve, the third lining is arranged on the inner side of the left valve, and the fourth lining is arranged on the inner side of the right valve.

[0009] Further, the triggering device includes a first triggering mechanism between the first lining and the elevator clamp main body, a second triggering mechanism between the second lining and the elevator clamp main body, a third triggering mechanism between the left valve and the elevator clamp main body, a fourth triggering mechanism between the right valve and the latch, and a fifth triggering mechanism axially on the fourth lining.

[0010] Further, the first triggering mechanism includes a first triggering pin arranged on the first lining and a first sensor, and the lower end surface of the first triggering pin contacts the upper end surface of the first sensor. A guiding hole corresponding to the first triggering pin is provided on the elevator clamp main body. The first lining is in a floating state with the elevator clamp main body through the first triggering pin. A reset pin is arranged on the lower end surface of the first lining, a compression spring is arranged on the lower single surface of the reset pin, and a guiding cavity is opened on the upper end surface of the elevator clamp main body, and the compression spring is arranged to move up and down in the guiding cavity.

[0011] Further, the second triggering mechanism is composed of a second triggering pin, a second spring, a second lining, and a fourth sensor. The elevator clamp main body is provided with a radial guiding hole. The second triggering pin is arranged in the guiding hole. The second spring is arranged at one end of the second triggering pin away from the second lining. The second triggering pin contacts the outer wall of the second lining under the action of the spring second triggering pin. The fourth sensor is arranged above the second triggering pin, and the fourth sensor is vertically installed relative to the second triggering pin, and the lower end surface of the fourth sensor contacts the upper circumferential surface of the second triggering pin.

[0012] Further, the third triggering mechanism is composed of a second sensor and a triggering block in contact with the second sensor. The second sensor is installed on one side of the elevator clamp main body close to the left valve, and the triggering block is installed on one side of the left valve close to the elevator clamp main body.

[0013] Further, the fourth triggering mechanism consists of a third sensor and a latch. The third sensor is arranged on one side of the right valve near the latch, and the latch is in contact with the third sensor.

[0014] Further, the fifth triggering mechanism and the corresponding self-locking mechanism consist of a fourth lining, a control pin, a lever, a retaining pin, and a first spring. The lever is hinged on the right valve, and the lever and the retaining pin slide axially inside the right valve respectively. The upper end of the control pin contacts the lower end face of the fourth lining, the lower end of the control pin contacts one end of the lever, and the retaining pin is installed at the other end of the lever through the first spring.

[0015] Further, the flipping mechanism includes a column and fixed disks arranged on both sides below the column. A rotating shaft is arranged inside the fixed disk, and a mounting shaft is arranged below the rotating shaft. The rotating shaft is installed on both sides of the elevator sub by means of the mounting shaft. The flipping mechanism further includes a driving component and a locking component arranged inside the column. The driving component includes a hydraulic actuator fixedly connected inside the column. A chute is arranged at the output end of the hydraulic actuator. A slider is slidably connected inside the chute. Both ends of the bottom of the slider are fixedly connected with racks. A rotating rod is rotatably connected inside the column. A spur gear is fixedly connected in the middle of the rotating rod. First sprockets are fixedly connected at both ends of the rotating rod. The driving component further includes a second sprocket rotatably connected inside the fixed disk. A chain is installed between the second sprocket and the first sprocket. A fixed rod is fixedly connected between the two second sprockets, and the fixed rod penetrates through the rotating shaft and is fixedly connected with the rotating shaft.

[0016] Further, the locking component includes a guide shaft fixedly connected to the inner wall of the column. A frame is slidably connected on the guide shaft. Telescopic cylinders are fixedly connected to both sides inside the column. A connecting plate is fixedly connected to the output end of the telescopic cylinder. The connecting plate is fixedly connected with the frame. A first fixed ratchet and a second fixed ratchet are respectively fixedly connected to both sides inside the frame. The locking component further includes a first rotating ratchet and a second rotating ratchet fixedly connected to both sides of the spur gear, and the first rotating ratchet corresponds to the first fixed ratchet, and the second rotating ratchet corresponds to the second fixed ratchet. Fixed blocks are fixedly connected to both sides of the frame through third springs. A fixing plate is fixedly connected to the fixed block. The fixing plate is slidably connected horizontally to both sides inside the column. A guiding groove penetrating up and down is arranged on the fixing plate. Guide columns are fixedly connected to the bottom of the connecting plate, and the bottom of the guide column is movably arranged inside the guiding groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. A multifunctional flip - type hydraulic elevator provided by the present invention detects whether the elevator body is opened through a third trigger mechanism, detects whether the elevator body is carrying a pipe string through a first trigger mechanism, detects whether the pipe string enters the elevator body through a second trigger mechanism, and detects whether the elevator body is closed through a fourth trigger mechanism, and transmits the detected signals to the power drive mechanism of the elevator body respectively. The power drive mechanism determines how to drive and control the left valve, right valve and latch according to the signals. Through a fifth trigger mechanism, when the elevator body is in a carrying state, the latch can be self - locked to prevent the accidental opening of the elevator body. In addition, when used on the power elevator of a one - key automatic drilling rig, after the operator remotely operates the start switch, the power elevator can automatically operate and be interlocked with other equipment to achieve unmanned operation at the wellhead.

[0019] 2. In the operation of running in the hole of the multifunctional flip - type hydraulic elevator provided by the present invention, the pipe string is sent up from the catwalk and forms a certain angle with the drill floor. When the flip mechanism needs to rotate the elevator body by a certain angle, when the telescopic cylinder extends, the ratchet principle formed between the second fixed ratchet and the second rotating ratchet enables the spur gear to rotate only in one direction. The hydraulic device can make the spur gear rotate intermittently in one direction in the state of continuous extension and retraction. When the spur gear rotates, it drives the fixed rod, the rotating shaft and the angle of the elevator body through the rotating rod, the first chain wheel, the chain and the second chain wheel. Moreover, the diameter of the first chain wheel is smaller than that of the second chain wheel, and the speed - reducing transmission is easier to control the change of the angle of the elevator body. And this mechanism has the advantage of self - locking. The flip mechanism ensures the coordinated use of the elevator body with other wellhead equipment, further improving the safety and efficiency of well drilling and workover operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the overall structure of the present invention;

[0021] Figure 2 It is the top view of the structure of the elevator body of the present invention;

[0022] Figure 3 It is the cross - sectional view of the structure at the first inner lining of the present invention;

[0023] Figure 4 It is the cross - sectional view of the structure at the second trigger pin of the present invention;

[0024] Figure 5 It is the cross - sectional view of the self - locking mechanism structure of the present invention;

[0025] Figure 6 It is the schematic diagram of the structure of the flip mechanism of the present invention;

[0026] Figure 7 It is the exploded view of the structure of the flip mechanism of the present invention;

[0027] Figure 8 Structural schematic diagram of the drive component and the locking component of the present invention;

[0028] Figure 9 Exploded view of the drive component structure of the present invention;

[0029] Figure 10 Exploded view of the locking component structure of the present invention;

[0030] Figure 11 Structural schematic diagram at the frame of the present invention;

[0031] Figure 12 Exploded view of the structure at the frame of the present invention.

[0032] In the figure: 1, elevator body; 101, compression spring; 102, return pin; 103, stop block; 1031, mounting shaft; 11, pin; 2, left valve; 21, trigger block; 3, right valve; 4, latch; 5, flipping mechanism; 51, column; 52, fixed disk; 53, rotating shaft; 54, drive component; 541, hydraulic actuator; 5411, chute; 542, slider; 543, rack; 544, rotating rod; 545, spur gear; 546, first sprocket; 547, second sprocket; 548, chain; 549, fixed rod; 55, locking component; 551, telescopic cylinder; 552, connecting plate; 553, guide shaft; 554, frame; 5541, first fixed ratchet; 5542, second fixed ratchet; 555, first rotating ratchet; 556, second rotating ratchet; 557, fixed block; 5571, third spring; 558, fixing plate; 5581, guide groove; 559, guide post; 61, first lining; 611, first trigger pin; 62, second lining; 63, third lining; 64, fourth lining; 71, control pin; 72, lever; 73, stop pin; 74, first spring; 81, first sensor; 82, second sensor; 83, third sensor; 91, second spring; 92, second trigger pin; 93, fourth sensor. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] To solve the technical problems of the general safety and automation level of the power elevator during the overall operation, as Figures 1-5 shown, the following preferred technical solutions are provided:

[0035] A multifunctional flip - type hydraulic elevating device, comprising an elevating device main body 1, a left valve 2, a right valve 3, a latch 4, a flipping mechanism 5, a lining assembly, a self - locking mechanism, a sensing assembly, a triggering device, and a power driving mechanism electrically connected to the sensing assembly. A pin 11 is provided on the elevating device main body 1. The elevating device main body 1 is hinged to the left valve 2 and the right valve 3 through the pin 11. The lining assembly is arranged inside the elevating device main body 1, the left valve 2, and the right valve 3. The left valve 2 is hinged with a latch 4 through the pin 11. A mating surface corresponding to the latch 4 is provided on the right valve 3 for engaging the latch 4 when closing. Blocks 103 are provided on both sides of the elevating device main body 1, and a mounting shaft 1031 is provided on the block 103. The power driving mechanism is used to receive signals from the sensing assembly and can drive the left valve 2, the right valve 3, and the latch 4 to act. Two sets of flipping mechanisms 5 are provided, and the two sets of flipping mechanisms 5 are arranged on both sides of the elevating device main body 1. The flipping mechanism 5 can rotate the elevating device main body 1 by a certain angle, and at the same time, when the elevating device main body 1 is closed, it can be in a floating state and can automatically reset to the horizontal by its own weight. During the operation of lowering the drill pipe, the drill pipe is sent from the catwalk and is at a certain angle with the drill floor. The flipping mechanism 5 can rotate the elevating device main body 1 by a certain angle to ensure that the axial direction is parallel to the axial direction of the drill pipe. When normally connecting the drill pipe and the drill pipe needs to be thrown from the wellhead to the catwalk, the elevating device main body 1 can slide down along the drill pipe and automatically rotate. The flipping mechanism 5 ensures the coordinated use of the power elevating device with other wellhead equipment, further improving the safety and efficiency of the drilling and workover operations.

[0036] The lining assembly includes a first lining 61 arranged on one side of the elevating device main body 1 close to the left valve 2. The lining assembly further includes a second lining 62, a third lining 63, and a fourth lining 64. The second lining 62 is arranged at a position on the inner side of the elevating device main body 1 close to the right valve 3. The third lining 63 is arranged on the inner side of the left valve 2. The fourth lining 64 is arranged on the inner side of the right valve 3.

[0037] The triggering device includes a first triggering mechanism between the first lining 61 and the elevating device main body 1, a second triggering mechanism between the second lining 62 and the elevating device main body 1, a third triggering mechanism between the left valve 2 and the elevating device main body 1, a fourth triggering mechanism between the right valve 3 and the latch 4, and a fifth triggering mechanism axially on the fourth lining 64. The fifth triggering mechanism is used to trigger the self - locking mechanism.

[0038] The first triggering mechanism includes a first trigger pin 611 provided on the first inner lining 61 and a first sensor 81, and the lower end face of the first trigger pin 611 is in contact with the upper end face of the first sensor 81. A guiding hole corresponding to the first trigger pin 611 is provided on the elevator body 1. The first inner lining 61 is in a floating state with the elevator body 1 through the first trigger pin 611. When the elevator body 1 closes and hoists the pipe string, and the first inner lining 61 is stressed, the first inner lining 61 drives the first trigger pin 611 to press down, triggering the first sensor 81, and outputting a signal that the elevator body 1 has borne the load to the power driving mechanism. A reset pin 102 is provided on the lower end face of the first inner lining 61, and a compression spring 101 is provided on the lower single face of the reset pin 102. A guiding cavity is opened on the upper end face of the elevator body 1, and the compression spring 101 is arranged to move up and down in the guiding cavity. When the elevator body 1 is in a non-bearing state, under the reset action of the compression spring 101, the first inner lining 61 is located above the reset pin 102, maintaining a floating state up and down.

[0039] The second triggering mechanism consists of a second trigger pin 92, a second spring 91, a second inner lining 62, and a fourth sensor 93. The elevator body 1 is provided with a radial guiding hole. The second trigger pin 92 is arranged in the guiding hole. The second spring 91 is arranged at one end of the second trigger pin 92 away from the second inner lining 62. The second trigger pin 92 is in contact with the outer wall of the second inner lining 62 under the action of the spring second trigger pin 92. The fourth sensor 93 is arranged above the second trigger pin 92, and the fourth sensor 93 is vertically installed relative to the second trigger pin 92. The lower end face of the fourth sensor 93 is in contact with the upper circumferential face of the second trigger pin 92. When the power elevator is in the open state and unhooks the pipe string, the pipe string impacts the second inner lining 62, so that the outer wall of the second inner lining 62 impacts the second trigger pin 92. The second trigger pin 92 triggers the fourth sensor 93 under the impact of the second inner lining 62, and outputs a signal that the pipe string has entered the elevator body 1 to the power driving mechanism.

[0040] The third triggering mechanism consists of a second sensor 82 and a trigger block 21 in contact with the second sensor 82. The second sensor 82 is installed on the elevator body 1 on the side close to the left valve 2, and the trigger block 21 is installed on the side of the left valve 2 close to the elevator body 1. When the left valve 2 is opened, the second sensor 82 can be triggered, and a signal that the elevator body 1 has been opened can be output to the power driving mechanism.

[0041] The fourth triggering mechanism consists of a third sensor 83 and a latch 4. The third sensor 83 is arranged on the side of the right valve 3 close to the latch 4, and the latch 4 is in contact with the third sensor 83. When the latch 4 latches the right valve 3 after the elevator body 1 is closed, the latch 4 will trigger the third sensor 83, and then output a signal that the elevator body 1 has been closed to the power driving mechanism.

[0042] The fifth triggering mechanism and the corresponding self-locking mechanism are composed of a fourth inner lining 64, a control pin 71, a lever 72, a retaining pin 73 and a first spring 74. The lever 72 is hinged to the right valve 3. The lever 72 and the retaining pin 73 slide axially within the right valve 3 respectively. The upper end of the control pin 71 contacts the lower end face of the fourth inner lining 64, and the lower end of the control pin 71 contacts one end of the lever 72. The retaining pin 73 is installed at the other end of the lever 72 through the first spring 74. After the elevator body 1 is closed and the pipe string is lifted, the fourth inner lining 64 on the right valve 3 presses down the control pin 71, causing the retaining pin 73 to slide upward through the lever 72 to block the latch 4 and prevent the elevator from accidentally opening, forming self-locking. After the elevator body 1 releases the pipe string, under the action of the first spring 74, the retaining pin 73 slides downward, the latch 4 opens and at the same time causes the control pin 71 to slide upward to push open the fourth inner lining 64 on the right valve 3, ensuring the operation safety of the latch 4.

[0043] Specifically, during operation, the third triggering mechanism is used to detect whether the elevator body 1 is opened, the first triggering mechanism is used to detect whether the elevator body 1 is carrying a pipe string, the second triggering mechanism is used to detect whether the pipe string enters the elevator body 1, and the fourth triggering mechanism is used to detect whether the elevator body 1 is closed. The signals obtained from the detections are respectively transmitted to the power driving mechanism of the elevator body 1. The power driving mechanism determines how to drive and control the left valve 2, the right valve 3 and the latch 4 according to the signals. Through the fifth triggering mechanism, it can be ensured that the latch 4 can be self-locked under the carrying state of the elevator body 1 to prevent the accidental opening of the elevator body 1.

[0044] To solve the technical problem that the angle control and adjustment of the flipping mechanism are not precise enough when the power-driven elevator is used in cooperation with the wellhead equipment, as Figures 6-12 shown, the following preferred technical solutions are provided:

[0045] The flipping mechanism 5 includes a column 51 and fixed disks 52 arranged on both sides below the column 51. A rotating shaft 53 is rotatably connected to the inner side of the fixed disk 52. The lower part of the rotating shaft 53 is rotatably connected to the lifting clamp main body 1 through a mounting shaft 1031. The flipping mechanism 5 further includes a driving component 54 and a locking component 55 arranged inside the column 51. The driving component 54 includes a hydraulic device 541 fixedly connected inside the column 51. A chute 5411 is arranged at the output end of the hydraulic device 541. A slider 542 is slidably connected in the chute 5411. Both ends of the bottom of the slider 542 are fixedly connected with racks 543. A rotating rod 544 is rotatably connected inside the column 51. A spur gear 545 is fixedly connected in the middle of the rotating rod 544. First chain sprockets 546 are fixedly connected to both ends of the rotating rod 544. The driving component 54 further includes a second chain sprocket 547 rotatably connected in the fixed disk 52. A chain 548 is installed between the second chain sprocket 547 and the first chain sprocket 546. A fixing rod 549 is fixedly connected between the two groups of second chain sprockets 547, and the fixing rod 549 penetrates through the rotating shaft 53 and is fixedly connected to the rotating shaft 53. When the rack 543 is meshed with the spur gear 545, the rotation of the rotating rod 544 can be driven during the telescopic process of the hydraulic device 541, and then the first chain sprocket 546 can be rotated. The rotation of the first chain sprocket 546 can drive the angle of the rotating shaft 53 and the lifting clamp main body 1 to be adjusted through the chain 548, the second chain sprocket 547 and the fixing rod 549.

[0046] The locking assembly 55 includes a guide shaft 553 fixedly connected to the inner wall of the column 51. A frame 554 is slidably connected to the guide shaft 553. On both sides inside the column 51, telescopic cylinders 551 are fixedly connected. The output end of the telescopic cylinder 551 is fixedly connected to a connecting plate 552, and the connecting plate 552 is fixedly connected to the frame 554. On both sides inside the frame 554, a first fixed ratchet wheel 5541 and a second fixed ratchet wheel 5542 are respectively fixedly connected. The locking assembly 55 further includes a first rotating ratchet wheel 555 and a second rotating ratchet wheel 556 fixedly connected to both sides of the spur gear 545, and the first rotating ratchet wheel 555 corresponds to the first fixed ratchet wheel 5541, and the second rotating ratchet wheel 556 corresponds to the second fixed ratchet wheel 5542. On both sides of the frame 554, fixed blocks 557 are fixedly connected through third springs 5571. A fixing plate 558 is fixedly connected to the fixed block 557. The fixing plate 558 is horizontally slidably connected to both sides inside the column 51. A guiding groove 5581 penetrating up and down is provided on the fixing plate 558. Guide posts 559 are fixedly connected to the bottom of the connecting plate 552. The bottom of the guide post 559 is movably arranged in the guiding groove 5581. When the telescopic cylinder 551 extends, the slider 542 slides backward in the chute 5411, and one set of racks 543 is meshed with the spur gear 545. When the telescopic cylinder 551 extends, its guide post 559 moves in the guiding groove 5581 and causes the two fixing plates 558 to slide inside the column 51, so that the second fixed ratchet wheel 5542 is meshed with the second rotating ratchet wheel 556 to form the ratchet principle. Subsequently, the hydraulic actuator 541 continuously extends and retracts and cooperates with the second fixed ratchet wheel 5542 and the second rotating ratchet wheel 556 to form the ratchet principle, which can make the rotating shaft 53 continuously rotate. When resetting is required, the telescopic cylinder 551 retracts, so that the other set of racks 543 is meshed with the spur gear 545. When the telescopic cylinder 551 retracts, the first fixed ratchet wheel 5541 is meshed with the first rotating ratchet wheel 555 to form the ratchet principle, and the rotating shaft 53 can rotate reversely during the continuous extension and retraction of the hydraulic actuator 541. When the telescopic cylinder 551 is in the middle position of extension and retraction, the rack 543 is not meshed with the spur gear 545, and at this time, the rotation of the angle between the rotating shaft 53 and the elevator sub 1 is not affected.

[0047] Specifically, during the tripping operation, the pipe string is sent up from the catwalk at a certain angle with the drill floor. When the flipping mechanism 5 needs to rotate the elevator body 1 by a certain angle, the telescopic cylinder 551 is activated. When the telescopic cylinder 551 extends, one set of the rack bars 543 is meshed and connected with the spur gear 545. When the telescopic cylinder 551 extends, it drives the guide post 559 to move backward through the connecting plate 552. Since the fixed plates 558 are slidably connected to the inside of the column 51 in the left-right direction, when the guide post 559 moves backward, the two sets of fixed plates 558 will move to one side, finally causing the second fixed ratchet wheel 5542 to mesh with the second rotating ratchet wheel 556. At this time, the ratchet principle formed between the second fixed ratchet wheel 5542 and the second rotating ratchet wheel 556 makes the spur gear 545 can only rotate in one direction. The hydraulic actuator 541 can make the spur gear 545 rotate intermittently in one direction in the continuously extending and retracting states. When the spur gear 545 rotates, it drives the fixed rod 549, the rotating shaft 53, and the angle of the elevator body 1 through the rotating rod 544, the first sprocket 546, the chain 548, and the second sprocket 547. Moreover, the diameter of the first sprocket 546 is smaller than that of the second sprocket 547, and the decelerating transmission is easier to control the change of the angle of the elevator body 1. And this mechanism has the advantage of self-locking. By retracting the telescopic cylinder 551, the elevator body 1 can be adjusted in the reverse direction. The flipping mechanism 5 ensures the coordinated use of the elevator body 1 and other wellhead equipment, further improving the safety and efficiency of the overall drilling and workover operations.

[0048] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0049] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A multifunctional flip-type hydraulic elevator clamp, comprising an elevator clamp main body (1), a left valve (2), a right valve (3), a latch (4), a flip mechanism (5), a lining assembly, a self-locking mechanism, a sensing assembly, a triggering device, and a power driving mechanism electrically connected to the sensing assembly, characterized in that: A shaft pin (11) is provided on the elevator body (1). The elevator body (1) is hinged to the left flap (2) and the right flap (3) through the shaft pin (11). The lining assembly is arranged inside the elevator body (1), the left flap (2) and the right flap (3). A latch (4) is hinged to the left flap (2) through the shaft pin (11). A latching surface corresponding to the latch (4) is provided on the right flap (3) for engaging the latch (4) when closing. Stopper blocks (103) are provided on both sides of the elevator body (1), and mounting shafts (1031) are provided on the stopper blocks (103). Two sets of flipping mechanisms (5) are provided, and the two sets of flipping mechanisms (5) are arranged on both sides of the elevator body (1); The lining assembly includes a first lining (61) arranged on one side of the elevator body (1) close to the left flap (2). The lining assembly further includes a second lining (62), a third lining (63) and a fourth lining (64). The second lining (62) is arranged at a position on the inner side of the elevator body (1) close to the right flap (3). The third lining (63) is arranged on the inner side of the left flap (2). The fourth lining (64) is arranged on the inner side of the right flap (3); The triggering device includes a first triggering mechanism between the first lining (61) and the elevator body (1), a second triggering mechanism between the second lining (62) and the elevator body (1), a third triggering mechanism between the left flap (2) and the elevator body (1), a fourth triggering mechanism between the right flap (3) and the latch (4), and a fifth triggering mechanism in the axial direction of the fourth lining (64); The first triggering mechanism includes a first triggering pin (611) and a first sensor (81) arranged on the first lining (61), and the lower end surface of the first triggering pin (611) contacts the upper end surface of the first sensor (81). A guiding hole corresponding to the first triggering pin (611) is provided on the elevator body (1). The first lining (61) is in a floating state with the elevator body (1) through the first triggering pin (611). A reset pin (102) is provided on the lower end surface of the first lining (61), and a compression spring (101) is provided on the lower single surface of the reset pin (102). A guiding cavity is opened on the upper end surface of the elevator body (1), and the compression spring (101) is arranged to move up and down in the guiding cavity.

2. The multifunctional flip-type hydraulic elevator clamp according to claim 1, characterized in that: The second triggering mechanism is composed of a second triggering pin (92), a second spring (91), a second lining (62) and a fourth sensor (93). The elevator body (1) is provided with a radial guiding hole. The second triggering pin (92) is arranged in the guiding hole. The second spring (91) is arranged at one end of the second triggering pin (92) away from the second lining (62). The second triggering pin (92) contacts the outer wall of the second lining (62) under the action of the spring second triggering pin (92). The fourth sensor (93) is arranged above the second triggering pin (92), and the fourth sensor (93) is vertically installed relative to the second triggering pin (92). The lower end surface of the fourth sensor (93) contacts the upper circumferential surface of the second triggering pin (92).

3. The multifunctional flip-type hydraulic elevator clamp according to claim 2, characterized in that: The third triggering mechanism consists of a second sensor (82) and a triggering block (21) in contact with the second sensor (82). The second sensor (82) is installed on the side of the elevator body (1) near the left valve (2), and the triggering block (21) is installed on the side of the left valve (2) close to the elevator body (1).

4. The multifunctional flip-type hydraulic elevator clamp according to claim 3, characterized in that: The fourth triggering mechanism consists of a third sensor (83) and a latch (4). The third sensor (83) is arranged on the side of the right valve (3) near the latch (4), and the latch (4) is in contact with the third sensor (83).

5. The multifunctional flip-type hydraulic elevator clamp according to claim 4, characterized in that: The fifth triggering mechanism and the corresponding self-locking mechanism consist of a fourth lining (64), a control pin (71), a lever (72), a retaining pin (73), and a first spring (74). The lever (72) is hinged on the right valve (3), and the lever (72) and the retaining pin (73) slide axially within the right valve (3) respectively. The upper end of the control pin (71) contacts the lower end face of the fourth lining (64), the lower end of the control pin (71) contacts one end of the lever (72), and the retaining pin (73) is installed at the other end of the lever (72) through the first spring (74).

6. The multifunctional flip-type hydraulic elevator clamp according to claim 5, characterized in that: The flipping mechanism (5) includes a column (51) and fixed disks (52) arranged on both sides below the column (51). A rotating shaft (53) is arranged inside the fixed disk (52), and a mounting shaft (1031) is arranged below the rotating shaft (53). The rotating shaft (53) is installed on both sides of the elevator body (1) through the mounting shaft (1031).

7. The multifunctional flip-type hydraulic elevator clamp according to claim 6, characterized in that: The flipping mechanism (5) further includes a driving component (54) and a locking component (55) arranged inside the column (51). The driving component (54) includes a hydraulic actuator (541) fixedly connected inside the column (51). A chute (5411) is arranged at the output end of the hydraulic actuator (541). A slider (542) is slidably connected inside the chute (5411). Rack bars (543) are fixedly connected to both ends of the bottom of the slider (542). A rotating rod (544) is rotatably connected inside the column (51). A spur gear (545) is fixedly connected in the middle of the rotating rod (544). First sprocket wheels (546) are fixedly connected to both ends of the rotating rod (544).

8. The multifunctional flip-type hydraulic elevator clamp according to claim 7, characterized in that: The driving component (54) further includes a second sprocket wheel (547) rotatably connected inside the fixed disk (52). A chain (548) is installed between the second sprocket wheel (547) and the first sprocket wheel (546). A fixed rod (549) is fixedly connected between the two second sprocket wheels (547), and the fixed rod (549) penetrates through the rotating shaft (53) and is fixedly connected to the rotating shaft (53).

9. The multifunctional flip-type hydraulic elevator clamp according to claim 8, characterized in that: The locking component (55) includes a guide shaft (553) fixedly connected to the inner wall of the column (51). A frame (554) is slidably connected on the guide shaft (553). Telescopic cylinders (551) are fixedly connected to both sides inside the column (51). A connecting plate (552) is fixedly connected to the output end of the telescopic cylinder (551). The connecting plate (552) is fixedly connected to the frame (554). A first fixed ratchet wheel (5541) and a second fixed ratchet wheel (5542) are respectively fixedly connected to both sides inside the frame (554).

10. The multifunctional flip-type hydraulic elevator clamp according to claim 9, characterized in that: The locking assembly (55) further includes a first rotating ratchet wheel (555) and a second rotating ratchet wheel (556) fixedly connected to both sides of the spur gear (545). The first rotating ratchet wheel (555) corresponds to the first fixed ratchet wheel (5541), and the second rotating ratchet wheel (556) corresponds to the second fixed ratchet wheel (5542). Fixed blocks (557) are fixedly connected to both sides of the frame (554) through third springs (5571). A fixing plate (558) is fixedly connected to the fixed block (557). The fixing plate (558) is horizontally slidably connected to both inner sides of the column (51). A guiding groove (5581) penetrating vertically is provided on the fixing plate (558). Guide posts (559) are fixedly connected to the bottoms of the connecting plates (552). The bottoms of the guide posts (559) are movably arranged in the guiding groove (5581).

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