Tubing handling device

Abstract

A tubing handling device, comprising a lifting and tilting platform which comprises bases (1), tubing bearing seats (2) and a scissor support, wherein an upper sliding groove (5) horizontally arranged in a front-rear direction is provided in each tubing bearing seat, and a lower sliding groove (8) is provided in each base. Each lower sliding groove comprises a horizontal section and an ascending section, wherein each horizontal section is horizontally arranged in the front-rear direction; when a fourth hinge shaft (10) slides back and forth along a corresponding horizontal section, the tubing bearing seat performs a vertical lifting action; and when the fourth hinge shaft slides up and down along a corresponding ascending section, the tubing bearing seat performs a tilting motion. The tubing handling device is structured rationally and designed ingeniously, thereby eliminating the need for manual handling of a tubing when entering or exiting a catwalk machine, and greatly reducing the labor intensity for operators.

Description

Pipe rod taking and delivering device TECHNICAL FIELD

[0001] The present application relates to the technical field of oil well repair operation, and is a pipe rod taking and delivering device. BACKGROUND

[0002] The catwalk machine is used for completing the lifting operation of the sucker rod and the oil pipe (referred to as pipe rod) during the well repair operation. At present, the catwalk machine often needs manual lifting of the pipe rod to take out the pipe rod from the catwalk machine, and the labor intensity of the operation personnel is large.

[0003] For example, the Chinese patent document with the application number CN201720687022.9 discloses a well repair power catwalk capable of freely adjusting the angle, which comprises a moving trolley, a V-shaped groove connected to the end of the moving trolley through a rotating shaft, a drill rod arranged in the V-shaped groove, a catwalk base arranged on the moving trolley, a moving wheel arranged at the bottom of the moving trolley, a lifting hydraulic cylinder connected to the other end of the sliding trolley, the lifting hydraulic cylinder being installed at the end of the V-shaped groove, an ejection mechanism arranged on the moving trolley below both ends of the V-shaped groove and used for ejecting the drill rod, a sliding hydraulic cylinder with one end fixed in the moving trolley and the other end connected to the lifting hydraulic cylinder. For another example, the Chinese patent document with the application number CN201721270443.8 discloses a power catwalk machine for drilling and well repair, which comprises a base, a rack, an upper pipe mechanism for moving the pipe to the catwalk machine, the upper pipe mechanism comprising two upper pipe rods, two hooks, a connecting rod for connecting the two hooks, and a driving oil cylinder for driving the connecting rod to rotate, the free ends of the two upper pipe rods being opposite to each other, and the connecting ends of the two upper pipe rods being rotatably connected to the bottom of the rack; the two upper pipe rods are located on the same straight line and are parallel to the connecting rod; the two hooks are fixed to the two ends of the connecting rod, respectively, the connecting rod is arranged on the rack and located above the upper pipe rods; one end of the driving oil cylinder is fixed to the base, and the other end of the driving oil cylinder is connected to the connecting rod through a piston rod to drive the connecting rod to rotate; a transfer mechanism, the transfer mechanism comprising a front support arm, a rear support arm, a main arm, a sliding rail, a driving device for driving the main arm to move, one end of the front support arm being hingedly connected to the lower surface of the sliding rail, the other end of the front support arm being hingedly connected to the base and being driven to extend or retract by a hydraulic cylinder; one end of the rear support arm being hingedly connected to the base, the other end of the rear support arm being hingedly connected to the end of the sliding rail; the main arm being slidingly connected in the sliding rail and being connected to the driving device; and a falling pipe mechanism for receiving the pipe, the falling pipe mechanism comprising two lower pipe rods, the lower pipe rods being rotatably connected to the top of the rack, and the two lower pipe rods being located on one side of the two hooks, respectively. The above two power catwalks need manual taking out of the pipe rod from the catwalk machine, and the labor intensity of the operation personnel is large. SUMMARY

[0004] The present application provides a pipe rod taking and delivering device, which overcomes the shortcomings of the prior art and effectively solves the problem of the labor intensity of the operation personnel in the existing well repair operation.

[0005] The technical scheme of the present application is realized by the following measures: a pipe rod taking and delivering device, comprising a lifting and overturning table, the lifting and overturning table comprising a base, a pipe rod supporting seat and a scissor support, the scissor support comprising a first scissor arm and a second scissor arm which are hingedly connected in the middle, the pipe rod supporting seat being provided with an upper sliding groove arranged horizontally along the front-rear direction, the top of the first scissor arm and the top of the second scissor arm being hingedly connected with the pipe rod supporting seat through a first hinged shaft and a second hinged shaft respectively, and the first hinged shaft being slidably arranged in the upper sliding groove, the base being provided with a lower sliding groove, the bottom of the first scissor arm and the bottom of the second scissor arm being hingedly connected with the base through a third hinged shaft and a fourth hinged shaft respectively, and the fourth hinged shaft being slidably arranged in the lower sliding groove, the lower sliding groove comprising a horizontal section and a rising section, the horizontal section being arranged horizontally along the front-rear direction, and the pipe rod supporting seat performing a vertical lifting action when the fourth hinged shaft slides along the horizontal section, and the pipe rod supporting seat performing an overturning action when the fourth hinged shaft slides along the rising section.

[0006] The following is a further optimization or / and improvement of the above-mentioned application scheme:

[0007] The above-mentioned rising section is in the shape of a circular arc, and the center of the circular arc is collinear with the central axis of the third hinged shaft.

[0008] The above-mentioned pipe rod taking and delivering device further comprises a driving mechanism for driving the fourth hinged shaft to slide along the lower sliding groove.

[0009] The above-mentioned driving mechanism comprises a transmission shaft and a driving component for driving the transmission shaft to rotate around its central axis, the first scissor arm and the third hinged shaft being fixedly connected, the transmission shaft and the third hinged shaft being fixedly connected and the central axes of the two being collinear.

[0010] The above-mentioned lifting and overturning table is at least two, and the lifting and overturning tables are arranged at intervals left and right; a transmission shaft is fixedly connected between the third hinged shafts of the adjacent two lifting and overturning tables, the driving component comprising a linear push rod and a connecting rod, the linear push rod being hingedly connected at a fixed position, one end of the connecting rod being hingedly connected with the piston rod of the linear push rod, and the other end of the connecting rod being fixedly connected with one of the transmission shafts.

[0011] The top surface of the rear part of the above-mentioned pipe rod supporting seat is a concave circular arc surface for supporting the pipe rod, and the top surface of the front part of the pipe rod supporting seat is an inclined surface which is inclined from the rear to the front and from the bottom to the top, and the front end of the circular arc surface and the rear end of the inclined surface are smoothly and transitionally connected.

[0012] The pipe rod taking and conveying device further comprises a lifting adjusting frame and a lifting platform arranged in sequence from back to front on the front side of the lifting and overturning table, the lifting adjusting frame comprises at least two pipe rod supporting rods arranged in interval from left to right, the rear end of the pipe rod supporting rod is located on the front side of the front end of the pipe rod supporting seat, the top of the rear end of the pipe rod supporting rod is provided with a pipe rod stop block, and the front and rear ends of each pipe rod supporting rod are respectively hingedly connected with lifting driving devices for driving the pipe rod supporting rod to lift up and down.

[0013] The present application has reasonable structure and ingenious design, when the fourth hinge shaft slides along the horizontal segment of the lower sliding groove, the pipe rod supporting seat vertically lifts to realize vertical transportation of the pipe rod, when the fourth hinge shaft slides along the ascending segment of the lower sliding groove, the pipe rod supporting seat performs overturning action, the pipe rod rolls along the top surface of the pipe rod supporting seat to realize horizontal transportation of the pipe rod, and manual taking out or putting into of the pipe rod from the catwalk machine is not needed, so that the labor intensity of the operating personnel is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 is a perspective view of the best embodiment of the present application.

[0015] Fig. 2 is a front view of the best embodiment of the present application when the pipe rod is supported.

[0016] Fig. 3 is a left view of the best embodiment of the present application when the lifting and overturning table is not vertically lifted.

[0017] Fig. 4 is a left view of the best embodiment of the present application after the lifting and overturning table is vertically lifted.

[0018] Fig. 5 is a left view of the best embodiment of the present application after the lifting and overturning table is upward overturned.

[0019] Fig. 6 is a left view of the best embodiment of the present application when the pipe rod supported on the pipe rod supporting rod.

[0020] The codes in the drawings are as follows: 1 is a base, 2 is a pipe rod supporting seat, 3 is a first scissor arm, 4 is a second scissor arm, 5 is an upper sliding groove, 6 is a first hinge shaft, 7 is a second hinge shaft, 8 is a lower sliding groove, 9 is a third hinge shaft, 10 is a fourth hinge shaft, 11 is a transmission shaft, 12 is a circular arc surface, 13 is an inclined surface, 14 is a pipe rod supporting rod, 15 is a lifting driving device, 16 is a lifting platform, 17 is a first track, 18 is a second track, 19 is a first pipe rod moving trolley, 20 is a second pipe rod moving trolley, 21 is a first pipe rod supporting seat, 22 is a second pipe rod supporting seat, 23 is a pipe rod, 24 is a pipe rack, and 25 is a pipe rod stop block. DETAILED DESCRIPTION

[0021] The present application is not limited by the following embodiments, and the specific implementation manners can be determined according to the technical scheme of the present application and the actual situation.

[0022] In the present application, for the convenience of description, the relative position relationship of each component is described according to the layout mode of the accompanying drawings 2, such as the position relationship of front, back, top, bottom, left, right and the like is determined according to the layout direction of the accompanying drawings.

[0023] The present application will be further described below in conjunction with the embodiments and the accompanying drawings:

[0024] As shown in the accompanying drawings 1-6, the pipe rod taking and placing device comprises a lifting and overturning table, the lifting and overturning table comprises a base 1, a pipe rod supporting seat 2 and a scissor support, the scissor support comprises a first scissor arm 3 and a second scissor arm 4 which are hingedly connected in the middle, the pipe rod supporting seat 2 is provided with an upper sliding groove 5 which is horizontally arranged along the front-back direction, the top of the first scissor arm 3 and the top of the second scissor arm 4 are respectively hingedly connected with the pipe rod supporting seat 2 through a first hinged shaft 6 and a second hinged shaft 7, and the first hinged shaft 6 is slidably arranged in the upper sliding groove 5, the base 1 is provided with a lower sliding groove 8, the bottom of the first scissor arm 3 and the bottom of the second scissor arm 4 are respectively hingedly connected with the base 1 through a third hinged shaft 9 and a fourth hinged shaft 10, and the fourth hinged shaft 10 is slidably arranged in the lower sliding groove 8, the lower sliding groove 8 comprises a horizontal segment and a rising segment, the horizontal segment is horizontally arranged along the front-back direction, and when the fourth hinged shaft 10 slides along the horizontal segment forward and backward, the pipe rod supporting seat 2 performs a vertical lifting action, and when the fourth hinged shaft 10 slides along the rising segment up and down, the pipe rod supporting seat 2 performs an overturning action.

[0025] Specifically, the bottom of the second scissor arm 4 is located at the rear side of the bottom of the first scissor arm 3, and the front end of the horizontal segment and the lower end of the rising segment are connected; when the fourth hinged shaft 10 slides along the horizontal segment forward, the pipe rod supporting seat 2 vertically rises, and when the fourth hinged shaft 10 slides along the horizontal segment backward, the pipe rod supporting seat 2 vertically descends; when the fourth hinged shaft 10 slides along the rising segment upward, the rear end of the pipe rod supporting seat 2 is lifted relative to the front end of the pipe rod supporting seat 2, and when the fourth hinged shaft 10 slides along the rising segment downward, the rear end of the pipe rod supporting seat 2 is lowered relative to the front end of the pipe rod supporting seat 2.

[0026] The application is used in cooperation with a power catwalk, which comprises a first track 17, a second track 18, a first pipe moving trolley 19, a second pipe moving trolley 20, a first trolley driving mechanism and a second trolley driving mechanism; the first track 17 and the second track 18 are both inclined from left to right and from bottom to top, and the slope of the second track 18 is greater than that of the first track 17, the second track 18 is located at the lower side of the first track 17, the first pipe moving trolley 19, which can move between a first highest point position and a first lowest point position, is slidably installed on the first track 17 by the first trolley driving mechanism, the first pipe moving trolley 19 is provided with a first pipe pole receiving seat 21 located at the front side of the first track 17 for receiving one end of a pipe pole, the second pipe moving trolley 20, which can move between a second highest point position and a second lowest point position, is slidably installed on the second track 18 by the second trolley driving mechanism, the second pipe moving trolley 20 is provided with a second pipe pole receiving seat 22 located at the front side of the second track 18 for receiving the body of the pipe pole, when the first pipe moving trolley 19 moves from the first highest point to the first lowest point position and the second pipe moving trolley 20 moves from the second highest point position to the second lowest point position, the received pipe pole is tilted from an inclined state to a horizontal state, and the pipe pole can be pulled out of the first pipe pole receiving seat 21 and the second pipe pole receiving seat 22 upward.

[0027] When in use, the lifting and overturning table is installed between the first lowest point position and the second lowest point position, and the lifting and overturning table is connected with a driving mechanism for driving the fourth hinge shaft 10 to slide along the lower sliding groove 8.

[0028] When the pipe rod is operated, initially, the fourth hinge shaft 10 is located at the rear end of the horizontal section, the pipe rod supporting seat 2 is located at the lowest position of the stroke, the first pipe moving trolley 19 and the second pipe moving trolley 20 are respectively located at the first highest position and the second highest position, the upper end of the pipe rod 23 is lifted by the lifting clamp, and the lower end of the pipe rod is placed on the first pipe rod supporting seat 21. The first pipe moving trolley 19 moves downward along the first track 17 under the action of the gravity of the pipe rod or under the driving action of the first trolley driving mechanism. The first pipe rod supporting seat 21 moves downward with the first pipe moving trolley 19. The pipe rod 23 is gradually tilted and placed flat. When the pipe rod 23 is tilted to the second pipe rod supporting seat 22, the lifting clamp is released from the upper end of the pipe rod 23. The first pipe moving trolley 19 continues to move downward along the first track 17. The second pipe moving trolley 20 moves downward along the second track 18. With the continuous downward movement of the first pipe moving trolley 19 and the second pipe moving trolley 20, the pipe rod 23 is continuously tilted and placed flat. When the first pipe moving trolley 19 and the second pipe moving trolley 20 move to the first lowest position and the second lowest position respectively, the pipe rod 23 is just supported on the pipe rod supporting seat 2. Then the driving mechanism is started to drive the fourth hinge shaft 10 to move from the rear end of the horizontal section to the front end of the horizontal section. The pipe rod supporting seat 2 starts to be vertically lifted from the lowest position of the stroke, and then the pipe rod is lifted upward. When the fourth hinge shaft 10 moves to the front end of the horizontal section, the pipe rod has exited the first pipe rod supporting seat 21 and the second pipe rod supporting seat 22 upward. Then the driving mechanism continues to drive the fourth hinge shaft 10 to slide upward along the rising section from the bottom to the top. The pipe rod supporting seat 2 is turned over to make the pipe rod 23 roll off from the pipe rod supporting seat 2.

[0029] When the pipe rod is operated, initially, the first pipe moving trolley 19 and the second pipe moving trolley 20 are respectively located at the first lowest position and the second lowest position. The fourth hinge shaft 10 is located at the rear end of the horizontal section. Then the driving mechanism is started to drive the fourth hinge shaft 10 to move from the rear end of the horizontal section to the front end of the horizontal section. The pipe rod supporting seat 2 starts to be vertically lifted from the lowest position of the stroke. When the pipe rod supporting seat 2 is vertically lifted to the highest position, the pipe rod 23 is placed on the pipe rod supporting seat 2. Then the rear driving mechanism is started to drive the fourth hinge shaft 10 to move from the front to the rear along the horizontal section. The pipe rod supporting seat 2 is vertically lowered to place the pipe rod 23 on the first pipe rod supporting seat 21 and the second pipe rod supporting seat 22.

[0030] Therefore, the pipe rod does not need to be taken out and sent into the catwalk machine by manual operation, which greatly reduces the labor intensity of the operating personnel.

[0031] The above embodiments can be further optimized or / and improved according to actual needs.

[0032] Specifically, the rising section is in the shape of a circular arc, and the center of the circular arc is collinear with the central axis of the third hinge shaft 9. Therefore, when the fourth hinge shaft 10 slides upward and downward along the rising section, the pipe rod supporting seat 2 performs upward and downward turning action around the central axis of the third hinge shaft 9.

[0033] As shown in the accompanying drawings 1-5, the pipe rod taking and transferring device further comprises a driving mechanism for driving the fourth articulated shaft 10 to slide along the lower sliding groove 8; the driving mechanism comprises a transmission shaft 11 and a driving component for driving the transmission shaft 11 to rotate around its central axis, the first scissor arm 3 and the third articulated shaft 9 are fixedly connected, the transmission shaft 11 and the third articulated shaft 9 are fixedly connected and the central axes of the two are collinear; the lifting and overturning tables are at least two, the lifting and overturning tables are arranged at intervals left and right; a transmission shaft 11 is fixedly connected between the third articulated shafts 9 of the two adjacent lifting and overturning tables, the driving component comprises a linear push rod and a connecting rod, the linear push rod is hinged at a fixed position, one end of the connecting rod is hingedly connected with the piston rod of the linear push rod, and the other end of the connecting rod is fixedly connected with one of the transmission shafts 11. Thus, a group of linear push rods can drive multiple lifting and overturning tables to act synchronously, saving energy consumption, and according to the needs, the linear push rod can be an electric push rod or a cylinder or a hydraulic cylinder. In other embodiments, the driving component can be a motor and a reduction gear box, the output shaft of the motor is in transmission connection with the output shaft of the reduction gear box, and the output shaft of the reduction gear box is in transmission connection with the transmission shaft 11.

[0034] As shown in the accompanying drawings 1-5, the rear top surface of the pipe rod supporting seat 2 is a concave circular arc surface 12 for supporting the pipe rod, and the front top surface of the pipe rod supporting seat 2 is an inclined surface 13 inclined from back to front and from bottom to top, and the front end of the circular arc surface 12 and the rear end of the inclined surface 13 are smoothly connected. When the first pipe moving trolley 19 and the second pipe moving trolley 20 move to the first lowest point position and the second lowest point position respectively, the pipe rod 23 is just supported on the bottom of the circular arc surface 12, the rear side of the pipe rod 23 is blocked by the circular arc surface 12, and the front side of the pipe rod 23 is blocked by the inclined surface 13, so that the pipe rod 23 will not roll on the pipe rod supporting seat 2 when vertically lifting. When the fourth articulated shaft 10 slides upward along the rising section, the pipe rod supporting seat 2 overturns upward, so that the inclined surface 13 changes from being inclined from back to front and from bottom to top to being inclined from back to front and from top to bottom, thereby removing the blocking effect on the pipe rod 23, and the pipe rod 23 can roll forward off the pipe rod supporting seat 2.

[0035] In addition, through the arrangement of the circular arc surface 12 and the inclined surface 13, two support rods arranged in the front and rear directions can be arranged at a distance higher than the pipe rod supporting seat 2 when the pipe rod is lowered, the two support rods are arranged at intervals left and right, and the pipe rods are arranged in front and back on the support rods. When the driving mechanism drives the pipe rod supporting seat 2 to lift upward, the inclined surface contacts the pipe rod, and the pipe rod rolls along the inclined surface to the bottom of the circular arc surface while being lifted upward, thereby being separated from the support rods. The rear driving mechanism drives the pipe rod supporting seat 2 to descend, and the pipe rod 23 is placed on the first pipe rod supporting seat 21 and the second pipe rod supporting seat 22.

[0036] As shown in FIGS. 1-2 and 6, the pipe rod taking and conveying device further comprises a lifting adjusting frame and a lifting platform 16 arranged in sequence from back to front on the front side of the lifting and overturning table. The lifting adjusting frame comprises at least two pipe rod supporting rods 14 arranged at intervals left and right. The rear ends of the pipe rod supporting rods 14 are located on the rear side of the front end of the pipe rod supporting seat 2. The top of the rear end of each pipe rod supporting rod 14 is provided with a pipe rod stop block 25. The bottom of each pipe rod supporting rod 14 is hingedly connected with a lifting driving device 15 for driving the pipe rod supporting rod 14 to lift up and down. In use, a pipe rack 24 is arranged on the front side of the lifting platform 16. When the pipe rod is operated, the pipe rod supporting rod 14 is made to be low in front and high in back by the lifting driving device 15, and the rear end of the pipe rod supporting rod 14 is lower than the pipe rod supporting seat 2, and the front end of the pipe rod supporting rod 14 is higher than the lifting platform 16. The pipe rod 23 is rolled from the pipe rod supporting table to the pipe rod supporting rod 14, the lifting platform 16, and finally to the pipe rack 24. When the pipe rod is operated, the pipe rod is taken from the pipe rack 24 and placed on the lifting platform 16 by making the pipe rod supporting rod 14 high in front and low in back by the lifting driving device 15. The lifting platform 16 lifts the pipe rod upward and rolls the pipe rod to the pipe rod supporting rod 14. The pipe rod 23 is blocked by the pipe rod stop block 25 and is arranged in sequence on the pipe rod supporting rod 14. The rear driving mechanism drives the pipe rod supporting seat 2 to vertically lift. The inclined surface contacts the last pipe rod, which is rolled to the bottom of the arc surface along the inclined surface while being lifted upward, so as to be separated from the pipe rod supporting rod 14. The pipe rod adjacent to the last pipe rod is still located on the pipe rod supporting rod 14 due to being blocked by the front end surface of the pipe rod supporting seat 2. The rear driving mechanism drives the pipe rod supporting seat 2 to descend, and the last pipe rod 23 is placed on the first pipe rod supporting seat 21 and the second pipe rod supporting seat 22. Thus, the pipe rod 23 is conveyed between the power catwalk and the pipe rack 24, and the labor intensity of the operator is further reduced. According to the needs, the lifting driving device 15 can be a hydraulic cylinder or a gas cylinder.

[0037] The above technical features constitute the best embodiment of the present application, which has strong adaptability and best implementation effect. Non-essential technical features can be added or reduced according to actual needs to meet the needs of different situations.

Claims

1. A pipe rod handling device, characterized in that The lifting turnover table comprises a base, a pipe rod supporting seat and a scissor support, the scissor support comprises a first scissor arm and a second scissor arm which are hingedly connected in the middle, the pipe rod supporting seat is provided with an upper sliding groove arranged horizontally along the front-rear direction, the top of the first scissor arm and the top of the second scissor arm are hingedly connected with the pipe rod supporting seat through a first hinged shaft and a second hinged shaft respectively, and the first hinged shaft is slidably arranged in the upper sliding groove, the base is provided with a lower sliding groove, the bottom of the first scissor arm and the bottom of the second scissor arm are hingedly connected with the base through a third hinged shaft and a fourth hinged shaft respectively, and the fourth hinged shaft is slidably arranged in the lower sliding groove, the lower sliding groove comprises a horizontal section and a rising section, the horizontal section is arranged horizontally along the front-rear direction, and when the fourth hinged shaft slides along the horizontal section, the pipe rod supporting seat performs a vertical lifting action, and when the fourth hinged shaft slides along the rising section, the pipe rod supporting seat performs a turnover action.

2. The pipe stem handling device of claim 1, wherein The rising section is in the shape of a circular arc, and the center of the circular arc is collinear with the central axis of the third hinged shaft.

3. A pipe stem handling device according to claim 1 or 2, characterized in that The lifting turnover table further comprises a driving mechanism for driving the fourth hinged shaft to slide along the lower sliding groove.

4. The pipe stem handling device of claim 3, wherein The driving mechanism comprises a transmission shaft and a driving component for driving the transmission shaft to rotate about the central axis thereof, the first scissor arm and the third hinged shaft are fixedly connected, and the transmission shaft and the third hinged shaft are fixedly connected and collinear in the central axis.

5. The pipe stem handling device of claim 4, wherein The lifting turnover table comprises at least two lifting turnover tables which are arranged at intervals left and right, and a transmission shaft is fixedly connected between the third hinged shafts of the two adjacent lifting turnover tables, the driving component comprises a linear push rod and a connecting rod, the linear push rod is hingedly connected at a fixed position, one end of the connecting rod is hingedly connected with the piston rod of the linear push rod, and the other end of the connecting rod is fixedly connected with one of the transmission shafts.

6. A pipe stem handling device according to claim 1 or 2 or 4 or 5, characterized in that The top surface of the rear part of the pipe rod supporting seat is a concave circular arc surface for supporting the pipe rod, and the top surface of the front part of the pipe rod supporting seat is an inclined surface which is inclined from back to front and from bottom to top, and the front end of the circular arc surface and the rear end of the inclined surface are smoothly connected.

7. The pipe stem handling device of claim 3, wherein The top surface of the rear part of the pipe rod supporting seat is a concave circular arc surface for supporting the pipe rod, and the top surface of the front part of the pipe rod supporting seat is an inclined surface which is inclined from back to front and from bottom to top, and the front end of the circular arc surface and the rear end of the inclined surface are smoothly connected.

8. A pipe stem handling device according to claim 1 or 2 or 4 or 5 or 7, characterized in that The lifting turnover table further comprises a lifting adjusting frame and a lifting platform which are arranged in sequence from back to front on the front side of the lifting turnover table, the lifting adjusting frame comprises at least two pipe rod supporting rods which are arranged at intervals left and right, the rear end of each pipe rod supporting rod is located on the rear side of the front end of the pipe rod supporting seat, the top of the rear end of each pipe rod supporting rod is provided with a pipe rod stop block, and the bottom of each pipe rod supporting rod is hingedly connected with a lifting driving device for driving the pipe rod supporting rod to lift up and down.

9. The pipe stem handling device of claim 3, wherein The lifting turnover table further comprises a lifting adjusting frame and a lifting platform which are arranged in sequence from back to front on the front side of the lifting turnover table, the lifting adjusting frame comprises at least two pipe rod supporting rods which are arranged at intervals left and right, the rear end of each pipe rod supporting rod is located on the rear side of the front end of the pipe rod supporting seat, the top of the rear end of each pipe rod supporting rod is provided with a pipe rod stop block, and the bottom of each pipe rod supporting rod is hingedly connected with a lifting driving device for driving the pipe rod supporting rod to lift up and down.

10. The pipe stem handling device of claim 6, wherein The lifting adjusting frame comprises at least two pipe rod supporting rods arranged at intervals leftward and rightward, the rear end of the pipe rod supporting rod is located at the front end rear side of the pipe rod supporting seat, the top of the rear end of the pipe rod supporting rod is provided with a pipe rod stop block, and the front and rear ends of each pipe rod supporting rod are respectively hingedly connected with lifting driving devices for driving the pipe rod supporting rod to lift up and down.

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