Hydraulic shaping device for casing pipe

Abstract

The utility model discloses a sleeve hydraulic shaping device which comprises an installation pipe with the bottom of a plugging structure, the bottom end of the installation pipe is fixedly connected with a guide head, a supporting plate is arranged above the installation pipe, the top of the supporting plate is fixedly connected with a control reminding mechanism, and the control reminding mechanism is used for reminding personnel. The bottom of the supporting plate is fixedly connected with a multi-stage electric telescopic rod, and the bottom end of an output shaft of the multi-stage electric telescopic rod is fixedly connected with a communicating mechanism. Through the arrangement of a series of structures, accurate pressure control adjustment can be synchronously carried out on the four extrusion blocks according to the inner diameter of a sleeve in a hydraulic extrusion mode, and the situation that the sleeve is extruded to protrude outwards due to the fact that the adjustment position is large and the extrusion force is large can be effectively reduced; and four extrusion blocks and a plurality of balls can be driven to rotate and vertically move to comprehensively extrude, shape and repair the inner wall of the sleeve, the situation that the concave position is not extruded can be effectively reduced, and the shaping and repairing effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of casing hydraulic shaping equipment, in particular to a casing hydraulic shaping device. Background Art

[0002] In petroleum equipment, casing is a tool used to reinforce the well wall. It can make the underground operation channel unobstructed, the well wall smooth, and the channel size uniform, which is convenient for subsequent oil production operations. When the oil field is developed, the casing buried deep underground will gradually show different degrees of concave deformation after a long period of service. In the prior art, casing deformation repair will use casing hydraulic shaping device for repair and shaping. For example, according to the search of the new search agency, application number: 201720367210.3 discloses a variable diameter hydraulic ball shaping device, which belongs to the field of oil casing repair. It is composed of a shaping assembly, a drive assembly, a flow inlet, a housing, a piston push handle, a chamber, a ball, a flow tube, and a guide head. Its characteristics The characteristics are: a driving assembly consisting of a sleeve, a motor, a large bevel gear, a small bevel gear, a torque controller, a cam, a transmission shaft, a connecting rod, a slider, a guide rail and a handle is located at the top of the entire device, and a shaping assembly of the entire device is connected below the driving assembly. The shaping assembly is composed of three sets of shaping mechanisms, and each shaping mechanism is connected through a flow tube. An inlet is provided on the upper side of the top shaping mechanism, and four inlet pipes are evenly distributed circumferentially at the inlet. Four chambers are evenly distributed circumferentially in the outer shell, and a piston push handle is provided inside the chamber. Balls are evenly distributed on the outer side of each piston push handle, and a guide head is provided below the driving assembly. The device realizes the function of automatic diameter changing of the shaping device underground, thereby achieving the purpose of saving costs and improving efficiency.

[0003] The variable diameter hydraulic ball shaping device disclosed in the above patent can adjust the position of the piston push handle according to the inner diameter of the sleeve, so as to be suitable for shaping and repairing sleeves with different inner diameters. However, the above patent still has the following shortcomings when in use: 1. It is not possible to accurately control the pressure and adjust the moving distance of the piston push handle. When the piston push handle is placed in the sleeve for adjustment, there is a situation where the adjustment position is too large, which will produce a large extrusion force on the inner wall of the sleeve, causing the inner wall of the sleeve to be squeezed and bulge outward; 2. In the process of driving the shaping assembly to move vertically to extrude and repair the inner wall of the sleeve, the shaping assembly can only move vertically. When the concave position of the sleeve is located between two adjacent piston push handles, it will not be squeezed, thereby affecting the shaping and repair effect; Based on the above situation, we have redesigned and proposed a hydraulic shaping device for sleeve. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a casing hydraulic shaping device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A casing hydraulic shaping device comprises a mounting tube with a blocking structure at the bottom, the bottom end of the mounting tube is fixedly connected with a guide head, a support plate is provided above the mounting tube, the top of the support plate is fixedly connected with a control reminder mechanism, the control reminder mechanism is used to remind personnel, the bottom of the support plate is fixedly connected with a multi-stage electric telescopic rod, the bottom end of the output shaft of the multi-stage electric telescopic rod is fixedly connected with a connecting mechanism, the mounting tube sealing rotation sleeve is arranged on the connecting mechanism, and hydraulic pressure can be supplied to the inside of the mounting tube through the connecting mechanism, the top of the mounting tube is fixedly connected with a rotating drive mechanism, the bottom of the connecting mechanism is embedded with a driving motor fixedly connected with the output shaft and the rotating drive mechanism, the driving motor and the rotating drive mechanism cooperate and can be used to drive the mounting tube to rotate, both sides, the front side and the rear side of the mounting tube are fixedly connected with adjustable extrusion and shaping mechanisms, the adjustable extrusion and shaping mechanisms are used to extrude and shape the casing, connecting holes are opened on the inner walls of the four sides of the mounting tube, the connecting holes are connected with the corresponding adjustable extrusion and shaping mechanisms, and the control reminder mechanism is electrically connected with the four adjustable extrusion and shaping mechanisms.

[0007] Preferably, the control reminder mechanism includes a controller and an audible and visual alarm fixedly connected to the top of the support plate, and the controller is electrically connected to the audible and visual alarm.

[0008] Preferably, the connecting mechanism includes a connecting box fixedly connected to the bottom end of the output shaft of the multi-stage electric telescopic rod, a connecting pipe is fixed to the top of the connecting box, an explosion-proof telescopic hose is fixed to the top of the connecting tube, a filling valve is fixed to the top of the explosion-proof telescopic hose, and the telescopic characteristics of the explosion-proof telescopic hose are used to provide the connecting box with a vertical movement distance, the support plate is fixedly sleeved on the outlet end of the filling valve, the bottom of the connecting box is connected and fixed with a connecting pipe, the mounting pipe is seal-rotatably sleeved on the connecting pipe, the connection between the connecting box and the mounting pipe is achieved through the connecting pipe, and the driving motor is embedded and fixed at the bottom of the connecting box.

[0009] Preferably, the rotary drive mechanism includes an inner gear ring fixedly connected to the top of the mounting tube, a gear is meshed on the inner side of the inner gear ring, the inner gear ring is sleeved on the connecting tube, and the bottom end of the output shaft of the driving motor is fixedly connected to the top of the gear.

[0010] Preferably, the adjustable extrusion and shaping mechanism comprises a rectangular tube fixedly connected to the outside of the mounting tube, the rectangular tube is aligned and connected with the corresponding communicating hole, a piston is provided with a sealing movable sleeve in the rectangular tube, a guide rod is fixedly connected to the side of the piston away from the mounting tube, a pressure sensor is fixedly connected to one end of the guide rod away from the corresponding piston, a fixing rod is fixedly connected between the top inner wall and the bottom inner wall of the rectangular tube, the fixing rod is slidably sleeved on the corresponding guide rod, the guide rod has a lateral guiding effect on the corresponding piston, a spring is fixedly connected between the side of the fixing rod close to the mounting tube and the corresponding piston, the spring is movably sleeved on the corresponding guide rod, an extrusion block is provided on the side of the rectangular tube away from the mounting tube, the extrusion block is fixedly connected to the pressure sensor on the side close to the corresponding rectangular tube, the pressure sensor detects the extrusion force of the extrusion block, the four pressure sensors are all electrically connected to the controller, the side of the extrusion block away from the mounting tube is set as an arc structure and a plurality of extrusion balls are embedded therein, the extrusion block and the extrusion balls cooperate to extrude and shape the inner wall of the sleeve.

[0011] Preferably, a first groove with an opening at the bottom is provided on the rear side of the mounting tube, a drain valve is embedded and fixed on the inner wall of the bottom end of the mounting tube, the bottom of the drain valve extends into the first groove, and the drain valve is used for discharging the hydraulic pressure inside the mounting tube.

[0012] Preferably, two positioning rods are fixedly connected to one side of the extrusion block close to the mounting tube, and the rectangular tube is slidably sleeved on the two corresponding positioning rods, and the positioning rods have a lateral guiding effect on the extrusion block.

[0013] Compared with the existing technology, the beneficial effects of the utility model are:

[0014] 1. By controlling the reminder mechanism, the connecting mechanism and the adjustable extrusion shaping mechanism, the four extrusion blocks can be precisely controlled and adjusted synchronously by hydraulic extrusion according to the inner diameter of the casing, which can effectively reduce the situation where the casing is squeezed outward due to the large extrusion force caused by the large adjustment position;

[0015] 2. Through the cooperation of multi-stage electric telescopic rods, drive motors and rotary drive mechanisms, four extrusion blocks and multiple balls can be driven to rotate and move vertically to extrude and reshape the inner wall of the casing. The inner wall of the casing can be fully extruded and repaired by rotating and extruding, which can effectively reduce the situation where the inner concave part is not squeezed and improve the reshaping and repair effect;

[0016] The utility model, through the arrangement of a series of structures, can synchronously and precisely control the pressure of the four extrusion blocks according to the inner diameter of the sleeve by means of hydraulic extrusion, which can effectively reduce the situation in which the sleeve is squeezed convexly due to the large extrusion force caused by the large adjustment position, and can drive the four extrusion blocks and multiple balls to rotate and move vertically to perform comprehensive extrusion and shaping repair on the inner wall of the sleeve, which can effectively reduce the situation in which the inner concave part is not squeezed and improve the shaping and repair effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a casing hydraulic shaping device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the main cross-sectional structure of a casing hydraulic shaping device proposed by the utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of part A;

[0020] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B.

[0021] In the figure: 100, mounting tube; 101, guide head; 1, support plate; 2, multi-stage electric telescopic rod; 3, connecting box; 4, explosion-proof telescopic hose; 5, controller; 6, sound and light alarm; 7, connecting pipe; 8, connecting pipe; 9, inner ring; 10, gear; 11, driving motor; 12, extrusion block; 13, connecting hole; 14, rectangular tube; 15, piston; 16, fixing rod; 17, guide rod; 18, pressure sensor; 19, spring; 20, positioning rod. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 A casing hydraulic shaping device comprises a mounting tube 100 with a plugging structure at the bottom, a first groove with an opening at the bottom is provided at the rear side of the mounting tube 100, a drain valve is fixedly mounted on the inner wall of the bottom end of the mounting tube 100, the bottom of the drain valve extends into the first groove, the drain valve is used for discharging the hydraulic pressure inside the mounting tube 100, a guide head 101 is fixedly connected to the bottom end of the mounting tube 100, a support plate 1 is provided above the mounting tube 100, a control reminder mechanism is fixedly connected to the top of the support plate 1, wherein the control reminder mechanism comprises a controller 5 and an audible and visual alarm 6 fixedly connected to the top of the support plate 1, and the controller 5 is electrically connected to the audible and visual alarm 6;

[0024] The bottom of the support plate 1 is fixedly connected to a multi-stage electric telescopic rod 2, the bottom end of the output shaft of the multi-stage electric telescopic rod 2 is fixedly connected to a connecting mechanism, the mounting tube 100 is sealingly and rotatably sleeved on the connecting mechanism, the connecting mechanism includes a connecting box 3 fixedly connected to the bottom end of the output shaft of the multi-stage electric telescopic rod 2, the top of the connecting box 3 is connected and fixed with a connecting pipe 7, the top of the connecting pipe 7 is connected and fixed with an explosion-proof telescopic hose 4, the top of the explosion-proof telescopic hose 4 is connected and fixed with a filling valve, the telescopic characteristics of the explosion-proof telescopic hose 4 are used to provide the connecting box 3 with a vertical moving distance, and the support plate 1 is fixed to the bottom of the output shaft of the multi-stage electric telescopic rod 2. The support plate 1 is fixedly sleeved on the outlet end of the liquid-adding valve, and the liquid-adding valve is connected with the external hydraulic supply pipe. The hydraulic pressure is added to the inside of the connecting box 3 through the liquid-adding valve and the explosion-proof telescopic hose 4. The bottom of the connecting box 3 is connected and fixed with a connecting pipe 8. The mounting pipe 100 is sealed and rotatably sleeved on the connecting pipe 8, wherein two sealing bearings are fixedly sleeved inside the mounting pipe 100, and the inner side of the inner ring of the sealing bearing is fixedly connected with the outer side of the connecting pipe 8. The sealing bearing plays the role of providing the connecting pipe 8 with a rotatable installation effect, and the connection between the connecting box 3 and the mounting pipe 100 is realized through the connecting pipe 8;

[0025] The top of the mounting tube 100 is fixedly connected with a rotation drive mechanism, and the bottom of the connecting box 3 is embedded and fixed with a driving motor 11 whose output shaft is fixedly connected with the rotation drive mechanism. The rotation drive mechanism includes an inner gear ring 9 fixedly connected to the top of the mounting tube 100, and a gear 10 is meshed on the inner side of the inner gear ring 9. The inner gear ring 9 is sleeved on the connecting tube 8. The bottom end of the output shaft of the driving motor 11 is fixedly connected with the top of the gear 10. The bottom of the connecting box 3 is provided with an embedding groove, and the rear inner wall of the embedding groove is fixedly connected with the rear side of the driving motor 11. The front side of the driving motor 11 is fixed and electrically connected with a wireless remote control switch, and the wireless remote control switch is matched with an external remote control;

[0026] The two sides, front side and rear side of the mounting tube 100 are fixedly connected with an adjustable extrusion shaping mechanism. The inner walls of the four sides of the mounting tube 100 are provided with connecting holes 13, which are connected to the inside of the corresponding adjustable extrusion shaping mechanism. The adjustable extrusion shaping mechanism includes a rectangular tube 14 fixedly connected to the outside of the mounting tube 100, the rectangular tube 14 is aligned and connected with the corresponding connecting holes 13, a piston 15 is provided in a sealing sleeve inside the rectangular tube 14, wherein a sealing ring is fixedly provided on the piston 15, the outer side of the sealing ring is in active contact with the inner wall of the corresponding rectangular tube 14, and the sealing between the piston 15 and the rectangular tube 14 is achieved by the sealing ring. A guide rod 17 is fixedly connected to the side of the piston 15 away from the mounting tube 100, and a pressure sensor 18 is fixedly connected to the end of the guide rod 17 away from the corresponding piston 15. A fixing rod 16 is fixedly connected between the top inner wall and the bottom inner wall of the rectangular tube 14. The fixing rod 16 is slidably sleeved on the corresponding guide rod 17, wherein a guide hole is opened on the right side of the fixing rod 16, and the inner wall of the guide hole is in active contact with the outer side of the corresponding guide rod 17. The guide rod 17 plays a lateral guiding effect on the corresponding piston 15. A spring 19 is fixedly connected between the side of the fixing rod 16 close to the mounting tube 100 and the corresponding piston 15, and the spring 19 is movable. The movable sleeve is arranged on the corresponding guide rod 17. When the spring 19 is in a compressed state and the hydraulic pressure inside the rectangular tube 14 flows out, the spring 19 in a compressed state can drive the corresponding piston 15 to move and reset. The side of the rectangular tube 14 away from the mounting tube 100 is provided with an extrusion block 12. The side of the extrusion block 12 close to the corresponding rectangular tube 14 is fixedly connected to the pressure sensor 18. The pressure sensor 18 detects the extrusion force of the extrusion block 12. The four pressure sensors 18 are electrically connected to the controller 5. The side of the extrusion block 12 away from the mounting tube 100 is set as an arc structure and embedded with a plurality of extrusion balls. The extrusion block 12 and the extrusion balls In cooperation, the inner wall of the sleeve can be extruded and shaped. The extrusion block 12 is fixedly connected to one side close to the mounting tube 100 with two positioning rods 20. The rectangular tube 14 is slidably sleeved on the corresponding two positioning rods 20. One side of the rectangular tube 14 is provided with two positioning holes. The inner walls of the positioning holes are in active contact with the outer sides of the corresponding positioning rods 20. A limiting hole is provided on the inner wall of the top of the positioning hole located above. The top of the positioning rod 20 is fixedly connected with a limiting block slidably connected to the corresponding limiting hole. The limiting block cooperates with the limiting hole to limit and prevent the positioning rod 20 from falling off. The positioning rod 20 has a lateral guiding effect on the extrusion block 12.

[0027] A battery is fixedly connected to the top of the support plate 1, and the battery is electrically connected to the controller 5, the sound and light alarm 6, the multi-stage electric telescopic rod 2 and the drive motor 11, and the battery supplies power to the controller 5, the sound and light alarm 6, the multi-stage electric telescopic rod 2 and the drive motor 11; the utility model, through a series of structural settings, can synchronously and accurately control the pressure of the four extrusion blocks 12 according to the inner diameter of the sleeve by hydraulic extrusion, which can effectively reduce the situation in which the sleeve is squeezed convexly due to the large extrusion force caused by the large adjustment position, and can drive the four extrusion blocks 12 and multiple balls to rotate and move vertically to perform comprehensive extrusion and shaping repair on the inner wall of the sleeve, which can effectively reduce the situation in which the concave part is not squeezed and improve the shaping and repair effect.

[0028] Working principle: When in use, when shaping and adjusting the casing, the pressure value of the sound and light alarm 6 is set in advance through the controller 5, and the guide head 101 and the installation tube 100 are inserted into the casing to be shaped. When the four extrusion blocks 12 are located in the undeformed position above the inner part of the casing, the movement of the installation tube 100 can be stopped, and then the positions of the four extrusion blocks 12 are adjusted according to the inner diameter of the installation tube 100, and the filling valve is connected to the external hydraulic supply device. The hydraulic pressure is added to the explosion-proof telescopic hose 4 through the filling valve, and the hydraulic pressure enters the connecting box 3 through the connecting pipe 7. The hydraulic pressure inside the connecting box 3 enters the installation tube 100 through the connecting pipe 8. The hydraulic pressure inside the installation tube 100 enters the rectangular tube 14 through the four connecting holes 13. The hydraulic pressure inside the rectangular tube 14 squeezes the corresponding piston 15, and the piston 15 drives the corresponding guide rod 17 to move. The guide rod 17 passes through the corresponding pressure sensor 1 8 drives the extrusion block 12 to move, and the extrusion block 12 drives the corresponding positioning rod 20 to move horizontally. The piston 15 moves and compresses the corresponding spring 19. When the extrusion block 12 drives the corresponding extrusion ball to move to contact the inner wall of the sleeve, the extrusion block 12 and the extrusion ball are restricted from continuing to move. The pressure sensor 18 that continues to move squeezes the corresponding extrusion block 12. The pressure sensor 18 detects the extrusion force and transmits the detected pressure value to the controller 5. When its pressure value reaches the preset value, the extrusion ball is in close contact with the inner wall of the sleeve. The controller 5 controls the corresponding sound and light alarm 6 to start to remind the personnel. After hearing the alarm, the personnel can stop adding hydraulic pressure, thereby completing the precise adjustment of the four extrusion blocks 12. In addition, the extrusion block 12 can be precisely adjusted according to the inner diameter of the sleeve through pressure control adjustment, which can effectively reduce the situation where the sleeve is squeezed outward by the large extrusion force caused by the large adjustment position;

[0029] After adjustment, the multi-stage electric telescopic rod 2 and the driving motor 11 are started forward, the output shaft of the multi-stage electric telescopic rod 2 drives the connecting box 3 to move vertically, the connecting box 3 drives the mounting tube 100 to move vertically through the connecting tube 8, the mounting tube 100 drives the extrusion block 12 to move vertically through the four rectangular tubes 14 and the plurality of positioning rods 20, the extrusion block 12 drives the corresponding plurality of balls to move downward along the inner wall of the sleeve, and at the same time, the output shaft of the driving motor 11 drives the gear 10 to rotate, the gear 10 drives the inner gear ring 9 meshing therewith to rotate, the inner gear ring 9 drives the mounting tube 100 to rotate, and the mounting tube 10 The four rectangular tubes 14 and the plurality of positioning rods 20 are used to drive the four extrusion blocks 12 to rotate in sequence, and the extrusion blocks 12 drive the corresponding plurality of balls to rotate around the inner wall of the sleeve, so that the extrusion blocks 12 and the plurality of balls move downward and rotate at the same time. When the extrusion blocks 12 and the plurality of balls move to the concave position, the plurality of balls moving downward squeeze the concave part to achieve the effect of plastic repair of the sleeve. Moreover, the inner wall of the sleeve can be fully extruded and repaired by the way that the extrusion blocks 12 and the plurality of balls rotate and move downward to squeeze the inner wall of the sleeve, which can effectively reduce the situation that the concave part is not squeezed and improve the plastic repair effect.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A casing hydraulic shaping device, comprising a mounting tube (100) with a plugging structure at the bottom, a guide head (101) fixedly connected to the bottom end of the mounting tube (100), characterized in that: A support plate (1) is provided above the mounting tube (100), the top of the support plate (1) is fixedly connected to a control reminder mechanism, the bottom of the support plate (1) is fixedly connected to a multi-stage electric telescopic rod (2), the bottom end of the output shaft of the multi-stage electric telescopic rod (2) is fixedly connected to a connecting mechanism, the mounting tube (100) is sealingly and rotatably sleeved on the connecting mechanism, the top of the mounting tube (100) is fixedly connected to a rotary drive mechanism, the bottom of the connecting mechanism is embedded and fixed with a drive motor (11) whose output shaft is fixedly connected to the rotary drive mechanism, both sides, the front side and the rear side of the mounting tube (100) are fixedly connected to adjustable extrusion and shaping mechanisms, the inner walls of the four sides of the mounting tube (100) are provided with connecting holes (13), the connecting holes (13) are connected to the inside of the corresponding adjustable extrusion and shaping mechanisms, and the control reminder mechanism is electrically connected to the four adjustable extrusion and shaping mechanisms.

2. A casing hydraulic shaping device according to claim 1, characterized in that: The control reminder mechanism comprises a controller (5) and an audible and visual alarm (6) fixedly connected to the top of the support plate (1); the controller (5) is electrically connected to the audible and visual alarm (6).

3. The casing hydraulic shaping device according to claim 1, characterized in that: The communication mechanism comprises a communication box (3) fixedly connected to the bottom end of the output shaft of the multi-stage electric telescopic rod (2); a connection pipe (7) is connected and fixed to the top of the communication box (3); an explosion-proof telescopic hose (4) is connected and fixed to the top of the connection pipe (7); a liquid filling valve is connected and fixed to the top of the explosion-proof telescopic hose (4); a support plate (1) is fixedly sleeved on the outlet end of the liquid filling valve; a communication pipe (8) is connected and fixed to the bottom of the communication box (3); a mounting pipe (100) is sealingly and rotatably sleeved on the communication pipe (8); and a drive motor (11) is embedded and fixed to the bottom of the communication box (3).

4. A casing hydraulic shaping device according to claim 3, characterized in that: The rotary drive mechanism comprises an inner gear ring (9) fixedly connected to the top of the mounting tube (100), a gear (10) meshing inside the inner gear ring (9), the inner gear ring (9) being sleeved on the connecting tube (8), and the bottom end of the output shaft of the driving motor (11) being fixedly connected to the top of the gear (10).

5. The casing hydraulic shaping device according to claim 2, characterized in that: The adjustable extrusion shaping mechanism comprises a rectangular tube (14) fixedly connected to the outside of the mounting tube (100), the rectangular tube (14) being aligned and connected to the corresponding connecting hole (13), a piston (15) being provided in a sealing sleeve inside the rectangular tube (14), a guide rod (17) being fixedly connected to the side of the piston (15) away from the mounting tube (100), a pressure sensor (18) being fixedly connected to the end of the guide rod (17) away from the corresponding piston (15), a fixing rod (16) being fixedly connected between the top inner wall and the bottom inner wall of the rectangular tube (14), the fixing rod (16) being slidably sleeved on the corresponding guide rod (17), a spring (19) is fixedly connected between the side of the fixed rod (16) close to the mounting tube (100) and the corresponding piston (15), and the spring (19) is movably sleeved on the corresponding guide rod (17). An extrusion block (12) is provided on the side of the rectangular tube (14) away from the mounting tube (100), and the side of the extrusion block (12) close to the corresponding rectangular tube (14) is fixedly connected to the pressure sensor (18). The four pressure sensors (18) are all electrically connected to the controller (5), and the side of the extrusion block (12) away from the mounting tube (100) is set as an arc structure and embedded with a plurality of extrusion balls.

6. The casing hydraulic shaping device according to claim 1, characterized in that: A first groove with an open bottom is provided on the rear side of the installation tube (100), and a drain valve is embedded and fixed on the inner wall of the bottom end of the installation tube (100), and the bottom of the drain valve extends into the first groove.

7. The casing hydraulic shaping device according to claim 5, characterized in that: Two positioning rods (20) are fixedly connected to one side of the extrusion block (12) close to the installation tube (100), and the rectangular tube (14) is slidably sleeved on the corresponding two positioning rods (20).

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