Adjustable hydraulic press for steel pipe

Abstract

The invention discloses an adjustable hydraulic press for a steel pipe, and relates to the technical field of hydraulic presses, the adjustable hydraulic press comprises a base, an assembly shell, a limiting workpiece, a locking plate and a sealing gasket, before detection, adjustment is carried out according to the size of the steel pipe, that is, a second shell moves through an electric sliding rail; the distance between the first shell and the second shell is slightly larger than the length of a steel pipe, meanwhile, a first electric telescopic rod pushes an adjusting plate to move through an assembling plate, gets close to or away from a lifting plate through a transmission plate and adjusts the distance between three rolling shafts, and therefore the device adapts to various steel pipes of different sizes, and the application range of the device is widened; the multiple steel pipes are supported and limited by the multiple limiting workpieces, the multiple steel pipes are detected at the same time, and therefore the multiple steel pipes can be detected at a time, and the production progress of the steel pipes is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water pressure machine, and particularly relates to an adjustable water pressure machine for steel pipes. BACKGROUND

[0002] As a key component in industrial production, the sealing property and pressure-bearing capacity of a steel pipe directly affect the use safety, so in the production process, the finished steel pipe needs to be subjected to hydrostatic pressure detection by means of a water pressure machine.

[0003] However, the existing water pressure machine has two obvious limitations in actual application: one is poor adaptability, which is difficult to flexibly cope with the detection requirements of steel pipes of different lengths and different diameters, resulting in limited application range of the equipment and poor flexibility; the other is low detection efficiency, only one steel pipe can be detected at a time, and when a large number of steel pipes need to be detected, the overall production progress is easily affected due to the long detection period.

[0004] Therefore, we design an adjustable water pressure machine for steel pipes to solve the above problems. SUMMARY

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present application provides an adjustable water pressure machine for steel pipes, which has the following advantages: first, by adjusting the internal space of the limiting workpiece, the diameters of various steel pipes can be adapted, so that the axis of the steel pipe and the sealing pad is kept in the same straight line, and then the movable second shell is used to push the steel pipe to abut against the sealing pads at both ends, so as to adapt to the lengths of various steel pipes; second, by using multiple vertically arranged limiting workpieces to support multiple steel pipes, the water pressure machine can detect multiple steel pipes at the same time.

[0006] To achieve the above purpose, the technical scheme adopted by the present application is as follows: An adjustable water pressure machine for steel pipes, comprising: a base, an assembly shell, a limiting workpiece, a locking plate, and a sealing pad. Two assembly shells are arranged on the base, one assembly shell is fixed at one end of the base, and the other assembly shell is slidably arranged at the other end of the base. The number of the limiting workpieces is multiple, and multiple limiting workpieces are vertically symmetrically arranged on the two assembly housings; the limiting workpiece comprises a lifting plate, a roller, a transmission plate, and a rotating shaft; the lifting plate is in the shape of "U"; three rollers are slidingly arranged on the lifting plate; the transmission plate is slidingly arranged below the lifting plate, and wedge-shaped blocks are arranged at the two ends of the transmission plate respectively, the transmission plate being used for controlling the spacing between the three rollers; the rotating shaft is arranged at the lower end of one side of the lifting plate, and a torsion spring is arranged between the rotating shaft and the assembly housing, so that the lifting plate is in an inclined state; by limiting the limiting workpieces, the inclination angle of the lower limiting workpieces is greater than that of the middle limiting workpieces and the upper limiting workpieces; after the steel pipe enters the lower limiting workpieces, the lower limiting workpieces are pressed downward by the weight of the steel pipe, so that they are turned to be vertical; then the middle limiting workpieces turn to guide the steel pipe falling again, and so on; the transmission plate is slidingly connected with an adjusting plate, the adjusting plate is triangular, and the spacing between the transmission plate and the lifting plate is adjusted by moving the adjusting plate; The locking plate is attached to the bottom surface of the lower limiting workpieces, multiple limiting workpieces are limited by the "U" structure of the lifting plate, and the multiple limiting workpieces guide the steel pipe after turning to one side and turn to arrange the pipe to the other side, and the turning angle is limited by the limiting column; Multiple sealing gaskets are respectively abutted with the two ends of multiple steel pipes, one side of the sealing gasket being used for water inlet, and the other side of the sealing gasket being used for air exhaust and water discharge.

[0007] In one embodiment, the opposite faces of the two assembly housings are respectively vertically provided with a first baffle and a second baffle, and the second baffle has a certain spacing between the lower end and the base, the spacing being the pipe outlet.

[0008] In one embodiment, according to the length of different steel pipes, the assembly housing moves horizontally along the base through the electric sliding rail, so that the spacing between the two assembly housings is slightly greater than the length of the steel pipe.

[0009] In one embodiment, one end of the lifting plate is a guide end, and the other end is a supporting end; the lower end of the lifting plate is provided with a protrusion; the supporting end and the protrusion are staggered with the lifting plate; the supporting end of the lower limiting workpiece is attached to the protrusion of the middle limiting workpiece, and the supporting end of the middle limiting workpiece is attached to the protrusion of the upper limiting workpiece, so as to limit each other.

[0010] In one embodiment, the workpiece is limited in the following way: one end of the rotating shaft extends into the assembly housing, the lower end of the rotating shaft is provided with a push gear, the middle part of the rotating shaft is provided with a push gear and a limiting gear, the push gear and the limiting gear are staggered at a certain angle around the rotating shaft, and the upper end of the rotating shaft is provided with a limiting gear; the number of positioning plates is two, the two positioning plates are staggered and arranged in the assembly housing, and springs are arranged at the sliding connection between the positioning plates and the assembly housing; the upper end of the positioning plate is provided with a limiting plate, and the lower end is provided with a push block; the upper and lower surfaces of the push block are respectively inclined surfaces; the limiting plate, the push block and the positioning plate form a 90-degree angle; the limiting gears of the middle limiting workpiece and the upper limiting workpiece are in close contact with the limiting plates of the two positioning plates, preventing the middle limiting workpiece and the upper limiting workpiece from continuing to overturn.

[0011] In one embodiment, the number of adjusting plates is the same as that of the limiting workpieces, the sharp corners of the adjusting plates are inserted into the clamping grooves of the transmission plates, and a plurality of adjusting plates are rotationally connected to the assembly plate, so that the adjusting plates rotate synchronously when the limiting workpieces overturn; the assembly plate is connected to the first electric telescopic rod; when adjusting, the first electric telescopic rod moves the adjusting plate through the assembly plate, and the transmission plate is close to or away from the lifting plate through the inclined surface of the adjusting plate, so as to adjust the distance between the three rollers.

[0012] In one embodiment, the sealing pad is cylindrical, the middle part is through, and the sealing pad is made of rubber material; the number of sealing pads is the same as that of limiting workpieces; a plurality of sealing pads are rotationally arranged on the opposite surfaces of the two assembly housings; one end of the sealing pad is provided with a box; the box extends into the through hole of the sealing pad through a pipe; the box in one of the assembly housings is connected with a water inlet pipe and a pressurizing pipe; the box in one of the assembly housings is provided with a pressure gauge and an electromagnetic valve; the electromagnetic valve is arranged on the exhaust port of the box.

[0013] In one embodiment, water is supplied to the inside of the steel pipe through the water inlet pipe, the air in the steel pipe is discharged through the exhaust port, and after water flows out of the electromagnetic valve, the electromagnetic valve is closed; the steel pipe is pressurized through the pressurizing pipe; the water pressure in the steel pipe is displayed through the pressure gauge; when the pressure gauge value stabilizes at the required pressure value, the pressurization is stopped, and the steel pipe is detected.

[0014] In one embodiment, a plurality of sealing pads are connected with a belt, the belt is driven by a motor, that is, the rotation of the belt drives the rotation of a plurality of sealing pads, and a plurality of sealing pads drive a plurality of steel pipes to rotate.

[0015] The beneficial effects of the present application are as follows: (1), the present application is detected before, according to the size of the steel pipe is adjusted, namely the second shell moves through the electric slide rail, let the first shell and the second shell between the spacing slightly greater than the length of the steel pipe, at the same time, the first electric telescopic rod is pushed through the assembly plate adjusting plate moves, through the transmission plate close to or away from the lifting plate, so as to adjust the spacing between the three said roller, comprehensive above to adapt to a variety of different size of steel pipe, to improve the scope of application of equipment.

[0016] (2), the present application is provided with a plurality of limiting workpiece, when placing a plurality of steel pipe, the limiting workpiece is turned to one side, guide the steel pipe in its internal, and then a plurality of limiting workpiece supports and limits a plurality of steel pipe, so that a plurality of steel pipe is detected, when a plurality of steel pipe is discharged, the limiting workpiece is turned to the other side, guide a plurality of steel pipe to roll down and discharge, so that a plurality of steel pipe can be checked at a time, improve the production progress of steel pipe. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 for the overall structure of the present application schematic diagram; Figure 2 for the first shell one side internal structure schematic diagram of the present application; Figure 3 for the first shell the other side internal structure schematic diagram of the present application; Figure 4 for the limiting workpiece one side structure schematic diagram of the present application; Figure 5 for the limiting workpiece the other side structure schematic diagram of the present application; Figure 6 for the adjusting mechanism structure schematic diagram of the present application; Figure 7 for the adjusting mechanism and limiting workpiece connection schematic diagram of the present application; Figure 8 for the positioning plate structure schematic diagram of the present application; Figure 9 for the sealing gasket structure schematic diagram of the present application; Figure 10 for the limiting workpiece limiting positioning plate schematic diagram of the present application; Figure 11 for the present application is placed in a plurality of limiting workpiece steel pipe schematic diagram; Figure 12 for the present application is turned to a plurality of limiting workpiece vertical schematic diagram; Figure 13 for the present application is discharged from a plurality of limiting workpiece steel pipe schematic diagram.

[0018] In the figure: 1, base; 11, electric sliding rail; 2, assembly shell; 201, first shell; 202, second shell; 21, first baffle; 22, second baffle; 23, limiting column; 3, limiting workpiece; 31, lifting plate; 32, roller; 33, transmission plate; 34, rotating shaft; 311, leading end; 312, supporting end; 313, protruding block; 321, transmission column; 331, wedge-shaped block; 332, clamping groove; 341, push gear; 342, limiting gear; 4, adjusting mechanism; 41, adjusting plate; 42, assembly plate; 43, first electric telescopic rod; 5, locking plate; 51, second electric telescopic rod; 6, positioning plate; 61, limiting plate; 62, pushing block; 7, sealing gasket; 71, box body; 72, pressure gauge; 73, electromagnetic valve; 70, belt; 711, water inlet pipe; 712, pressurizing pipe; 100, steel pipe. DETAILED DESCRIPTION

[0019] The application will be further described in connection with the accompanying drawings and examples, and the modes of the application include but are not limited to the following examples.

[0020] Referring to Figures 1-3 , the application provides an adjustable water pressure machine for steel pipes, comprising a base 1, an assembly shell 2, a limiting workpiece 3, an adjusting mechanism 4, a locking plate 5, a positioning plate 6, and a sealing gasket 7. Referring to Figure 1 , two assembly shells 2 are arranged on the base 1, and first baffles 21 and second baffles 22 are vertically arranged on opposite surfaces of the two assembly shells 2, respectively. The second baffle 22 is spaced apart from the base 1 at the lower end, and the space is the outlet of the pipe. The two assembly shells 2 are a first shell 201 and a second shell 202. The first shell 201 is fixed on one end of the top surface of the base 1 by screws, and the second shell 202 is slidably arranged on the other end of the top surface of the base 1 by an electric sliding rail 11. According to the length of different steel pipes 100, the second shell 202 is moved by the electric sliding rail 11, so that the distance between the first shell 201 and the second shell 202 is slightly larger than the length of the steel pipe 100. Referring to Figures 1-3 , the limiting workpieces 3 are multiple, and the multiple limiting workpieces 3 are symmetrically arranged on the opposite wall surfaces of the first shell 201 and the second shell 202 in the vertical direction and located between the first baffles 21 and the second baffles 22. The limiting workpieces 3 on both sides are used for supporting the two ends of the steel pipe 100. For the convenience of later description, the number of limiting workpieces 3 on the first shell 201 and the second shell 202 is three, respectively. The three limiting workpieces 3 are divided into lower limiting workpieces 3, middle limiting workpieces 3, and upper limiting workpieces 3. Referring to Figure 4 , Figure 5 , Figure 8The limiting workpiece 3 comprises a lifting plate 31, a roller shaft 32, a transmission plate 33, and a rotating shaft 34. The lifting plate 31 is in a "U" shape, one end of the lifting plate 31 is a leading end 311, the other end is a supporting end 312, the lifting plate 31 is close to the first baffle 21, the supporting end 312 is close to the second baffle 22, the lower end of the lifting plate 31 is provided with a protrusion 313, the supporting end 312 and the protrusion 313 are on the same straight line, and the supporting end 312 and the protrusion 313 are staggered with the lifting plate 31, the purpose of the stagger of the supporting end 312, the protrusion 313 and the lifting plate 31 is to avoid mutual blocking when the three lifting plates 31 are turned over; the number of the roller shaft 32 is three, the three roller shafts 32 are slidingly arranged on the lifting plate 31, the lower end of the roller shaft 32 is provided with a transmission column 321, the three roller shafts 32 are used for limiting and supporting the steel pipe 100; the transmission plate 33 is in a "C" shape turned over by 90 degrees, is located below the lifting plate 31 and is slidingly connected with the lifting plate 31, the two ends of the transmission plate 33 are respectively provided with wedge-shaped blocks 331, the two wedge-shaped blocks 331 are reversely arranged, the purpose of arranging the two wedge-shaped blocks 331 is that when the lifting plate 31 approaches the lifting plate 31, the two wedge-shaped blocks 331 and the middle part of the transmission plate 33 synchronously push the three transmission columns 321, so that the three roller shafts 32 synchronously move to reduce the spacing between the three roller shafts 32, so that the three roller shafts 32 can adapt to steel pipes 100 of different diameters, the transmission plate 33 is provided with a clamping groove 332; the rotating shaft 34 is arranged at the lower end of the side close to the first baffle 21 of the lifting plate 31, the rotating shaft 34 is connected with the assembly shell 2 and extends into the inside of the assembly shell 2, wherein a torsion spring is arranged between the rotating shaft 34 and the assembly shell 2, the lifting plate 31 is inclined through the torsion spring, so that the leading end 311 of the lifting plate 31 is attached to the first baffle 21, and the falling steel pipe 100 is guided to enter the inside of the lifting plate 31; through limiting of the limiting workpiece 3, the inclination angle of the lower limiting workpiece 3 is greater than that of the middle limiting workpiece 3 and the upper limiting workpiece 3, after the steel pipe 100 enters the lower limiting workpiece 3, the lower limiting workpiece 3 is turned over to be perpendicular through the weight of the steel pipe 100, and then the middle limiting workpiece 3 turns over to guide the falling steel pipe 100 again, and so on; Please refer to Figure 2 、 Figure 3 、 Figure 6 、 Figure 7The number of the adjusting mechanism 4 is two, and the two adjusting mechanisms 4 are respectively located in the first shell 201 and the second shell 202. The adjusting mechanism 4 comprises an adjusting plate 41, an assembling plate 42 and a first electric telescopic rod 43. The adjusting plate 41 is triangular, and the number of the adjusting plate 41 is the same as that of the limiting workpiece 3. The adjusting plate 41 is inserted into the clamping groove 332 of the transmission plate 33, and a plurality of adjusting plates 41 are rotationally connected to the assembling plate 42. When the limiting workpiece 3 is overturned, the adjusting plate 41 is synchronously rotated. The assembling plate 42 is connected to the first electric telescopic rod 43. When adjusting, the first electric telescopic rod 43 pushes the adjusting plate 41 to move through the assembling plate 42. The transmission plate 33 is close to or away from the lifting plate 31 through the slope surface of the adjusting plate 41, so as to adjust the distance between the three rollers 32. Please refer to Figure 8 、 Figure 10 The limiting workpiece 3 is limited in the following manner. The end of the rotating shaft 34 of the lower limiting workpiece 3 is provided with a pushing tooth 341. The middle rotating shaft 34 of the limiting workpiece 3 is provided with a pushing tooth 341 and a limiting tooth 342. The pushing tooth 341 and the limiting tooth 342 are staggered at a certain angle with the rotating shaft 34 as the axis. The end of the rotating shaft 34 of the upper limiting workpiece 3 is provided with a limiting tooth 342. The number of the positioning plate 6 is two. The two positioning plates 6 are staggered and arranged in an up-down manner, and are slidably arranged in the assembling shell 2. The sliding connection between the positioning plate 6 and the assembling shell 2 is provided with a spring. The upper end of the positioning plate 6 is provided with a limiting plate 61, and the lower end is provided with a pushing block 62. The upper and lower surfaces of the pushing block 62 are respectively slope surfaces. The limiting plate 61, the pushing block 62 and the positioning plate 6 are at a ninety-degree angle. The limiting tooth 342 of the middle limiting workpiece 3 and the upper limiting workpiece 3 is attached to the limiting plate 61 of the two positioning plates 6, so as to prevent the middle limiting workpiece 3 and the upper limiting workpiece 3 from overturning. The inclination angle of the middle limiting workpiece 3 and the upper limiting workpiece 3 is less than that of the lower limiting workpiece 3. When the lower limiting workpiece 3 is overturned to be vertical, the pushing tooth 341 pushes the pushing block 62, so as to horizontally move the lower positioning plate 6. Thus, the limiting tooth 342 of the middle limiting workpiece 3 is separated from the limiting plate 61. The middle limiting workpiece 3 is overturned, the leading end 311 is attached to the first baffle 21, and the falling steel pipe 100 is guided to enter the middle limiting workpiece 3. A plurality of steel pipes 100 are sequentially placed. Please refer to Figures 2-3The locking plate 5 is arranged below the lower limiting workpiece 3, and is attached to the bottom surface of the lower limiting workpiece 3, so as to prevent the lower limiting workpiece 3 from being turned over to the second baffle plate 22 due to the weight of the steel pipe 100, wherein the supporting end 312 of the lower limiting workpiece 3 is attached to the protrusion 313 of the middle limiting workpiece 3, and the supporting end 312 of the middle limiting workpiece 3 is attached to the protrusion 313 of the upper limiting workpiece 3, so as to limit each other and prevent the middle limiting workpiece 3, the upper limiting workpiece 3 and the second baffle plate 22 from being turned over, and in this state, the plurality of steel pipes 100 are detected; when the plurality of steel pipes 100 are discharged, the locking plate 5 is horizontally moved by the second electric telescopic rod 51 and separated from the lower limiting workpiece 3, the lower limiting workpiece 3 is limited by the limiting column 23 and turned over to the second baffle plate 22 by a certain angle, and at the same time, the middle limiting workpiece 3 and the upper limiting workpiece 3 are sequentially turned over by a certain angle, and the plurality of steel pipes 100 are sequentially moved downward and finally discharged along the pipe discharge outlet. Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 9 The sealing gasket 7 is in a cylindrical shape and has a through hole in the middle and is made of rubber material, the number of the sealing gaskets 7 is the same as that of the limiting workpieces 3, the plurality of sealing gaskets 7 are rotationally arranged on the opposite surfaces of the first shell 201 and the second shell 202, one end of the sealing gasket 7 is provided with a box 71, the box 71 extends into the through hole of the sealing gasket 7 through a pipe, the box 71 located in the first shell 201 is connected with a water inlet pipe 711 and a pressurizing pipe 712, the box 71 located in the second shell 202 is provided with a pressure gauge 72 and an electromagnetic valve 73, the electromagnetic valve 73 is arranged on the exhaust port of the box 71; water is supplied to the inside of the steel pipe 100 through the water inlet pipe 711, the air in the steel pipe 100 is discharged through the exhaust port, after water flows out from the inside of the electromagnetic valve 73, the electromagnetic valve 73 is closed, the inside of the steel pipe 100 is pressurized through the pressurizing pipe 712, the water pressure in the steel pipe 100 is displayed through the pressure gauge 72, when the value of the pressure gauge 72 is stable at the required pressure value, the pressurization is stopped, and the steel pipe 100 is detected; the plurality of sealing gaskets 7 located on the first shell 201 are connected with a belt 70, the belt 70 is driven by a motor, that is, the rotation of the belt 70 drives the rotation of the plurality of sealing gaskets 7, and the plurality of sealing gaskets 7 drive the rotation of the plurality of steel pipes 100, so as to eliminate the detection blind area and uniformly apply pressure.

[0021] The working principle of the present application is as follows: Before detection, according to the size of the steel pipe 100, step one, the second shell 202 moves through the electric slide rail 11, so that the distance between the first shell 201 and the second shell 202 is slightly larger than the length of the steel pipe 100, step two, the first electric telescopic rod 43 pushes the adjusting plate 41 to move through the assembly plate 42, and the slope surface of the adjusting plate 41 allows the transmission plate 33 to approach or move away from the lifting plate 31, so as to adjust the distance between the three said rollers 32, after the adjustment is completed, the steel pipe 100 is sequentially put in; Please refer to Figures 11-12 The guide end 311 guides the falling steel pipe 100 into the lower said limiting workpiece 3, and through the weight of the steel pipe 100, the lower said limiting workpiece 3 is turned to vertical, at this time the pushing tooth 341 pushes the pushing block 62, so that the lower said positioning plate 6 moves horizontally, so that the limiting tooth 342 of the middle said limiting workpiece 3 is separated from the limiting plate 61, the middle said limiting workpiece 3 is turned over, the guide end 311 guides the falling steel pipe 100 into its interior again, and the same is true for the subsequent multiple said steel pipes 100, the second shell 202 is further moved, the two ends of the multiple said steel pipes 100 abut against the sealing gasket 7 on both sides, and the detection of the multiple said steel pipes 100 is started, and at the same time the multiple said steel pipes 100 are rotated through the belt 70; Please refer to Figure 13 After detection, the locking plate 5 moves horizontally through the second electric telescopic rod 51, and is separated from the lower said limiting workpiece 3, the lower said limiting workpiece 3 is limited through the limiting column 23, and is turned over by the second baffle 22 by a certain angle, at the same time, the middle said limiting workpiece 3, the upper said limiting workpiece 3 is turned over by a certain angle in turn, and the multiple said steel pipes 100 are sequentially moved downward, and finally are discharged along the pipe outlet.

[0022] The above embodiment is only one of the preferred embodiments of the present application, and should not be used to limit the protection scope of the present application, but any modification or polishing without substantial meaning made within the main design idea and spirit of the present application, the technical problems solved are still consistent with the present application, and should be included in the protection scope of the present application.

Claims

1. An adjustable hydraulic press for steel pipes, comprising: A base (1), an assembly shell (2), a limiting workpiece (3), a locking plate (5), and a sealing gasket (7); characterized in that two assembly shells (2) are provided on the base (1), and one of the assembly shells (2) is slidably provided on the base (1); The number of the limiting workpieces (3) is multiple, and the multiple limiting workpieces (3) are symmetrically arranged on the two assembly shells (2); the limiting workpiece (3) includes: a lifting plate (31), a roller (32), a transmission plate (33), and a rotating shaft (34), and the lifting plate (31) is "U"-shaped; the three rollers (32) are slidably arranged on the lifting plate (31); the transmission plate (33) and the lifting plate (31) are slidably arranged, and wedge blocks (331) are respectively provided at both ends of the transmission plate (33), and the transmission plate (33) is used to control the distance between the three rollers (32); the rotating shaft (34) is provided at the lower end of one side of the lifting plate (31), and a torsion spring is provided between the rotating shaft (34) and the assembly shell (2), so that the lifting plate (31) is Inclined; by limiting the limiting workpiece (3), the initial inclination angle of the lower limiting workpiece (3) is greater than that of the middle limiting workpiece (3) and the upper limiting workpiece (3); after the steel pipe (100) enters the lower limiting workpiece (3), the weight of the steel pipe (100) presses down the lower limiting workpiece (3) to make it flip to a vertical shape, and then the middle limiting workpiece (3) flips to one side to receive the steel pipe (100) that falls again, and so on, when flipping the pipe to the other side, the limiting column (23) limits its flipping angle; the transmission plate (33) is slidably connected to the adjustment plate (41), the adjustment plate (41) is triangular, and the adjustment plate (41) is moved to adjust the distance between the transmission plate (33) and the lifting plate (31); The locking plate (5) is in contact with the bottom surface of the limiting workpiece (3) below, and the plurality of limiting workpieces (3) limit each other and remain vertical after entering the steel pipe (100); the plurality of sealing pads (7) are respectively in contact with both ends of the plurality of steel pipes (100).

2. The adjustable hydraulic press for steel pipes according to claim 1, characterized in that: A first baffle (21) and a second baffle (22) are respectively vertically arranged on opposite surfaces of the two assembly shells (2), wherein a certain distance exists between the lower end of the second baffle (22) and the base (1), and the distance is the outlet of the discharge pipe.

3. The adjustable hydraulic press for steel pipes according to claim 1, characterized in that: According to the length of different steel pipes (100), the assembly shell (2) moves horizontally along the base (1) via the electric slide rail (11), so that the distance between the two assembly shells (2) is slightly larger than the length of the steel pipe (100).

4. The adjustable hydraulic press for steel pipes according to claim 1, characterized in that: One end of the lifting plate (31) is a guide end (311), and the other end is a support end (312). A protrusion (313) is provided at the lower end of the lifting plate (31). The support end (312), the protrusion (313) and the lifting plate (31) are interlaced. The support end (312) of the lower limiting workpiece (3) fits in with the protrusion (313) of the middle limiting workpiece (3), and the support end (312) of the middle limiting workpiece (3) fits in with the protrusion (313) of the upper limiting workpiece (3).

5. The adjustable hydraulic press for steel pipes according to claim 1, characterized in that: The limiting method for the limiting workpiece (3) is as follows: one end of the rotating shaft (34) extends into the interior of the assembly shell (2); the end of the rotating shaft (34) of the lower limiting workpiece (3) is provided with a push tooth (341); the end of the rotating shaft (34) of the middle limiting workpiece (3) is provided with a push tooth (341) and a limiting tooth (342); the pushing tooth (341) and the limiting tooth (342) are staggered at a certain angle with the rotating shaft (34) as the axis; the end of the rotating shaft (34) of the upper limiting workpiece (3) is provided with a limiting tooth (342); and two positioning plates are provided on one side of the plurality of limiting workpieces (3). (6), the two positioning plates (6) are staggered up and down and slidably arranged in the assembly shell (2), and a spring is provided at the sliding connection between the positioning plate (6) and the assembly shell (2), the upper end of the positioning plate (6) is provided with a limit plate (61), and the lower end is provided with a push block (62), the upper and lower surfaces of the push block (62) are slopes respectively, the limit plate (61), the push block (62) and the positioning plate (6) are at a ninety-degree angle, and the limit teeth (342) of the middle limit workpiece (3) and the upper limit workpiece (3) are in contact with the limit plates (61) in the two positioning plates (6).

6. The adjustable hydraulic press for steel pipes according to claim 1, characterized in that: The number of the adjustment plates (41) is the same as that of the limiting workpiece (3). The sharp corners of the adjustment plates (41) are inserted into the slots (332) of the transmission plate (33). The plurality of adjustment plates (41) are rotatably connected to the assembly plate (42). The purpose is that when the limiting workpiece (3) is turned over, the adjustment plates (41) rotate synchronously. The assembly plate (42) is connected to the first electric telescopic rod (43); during adjustment, the first electric telescopic rod (43) pushes the adjustment plate (41) to move through the assembly plate (42), and the transmission plate (33) is moved closer to or away from the lifting plate (31) through the slope of the adjustment plate (41).

7. The adjustable hydraulic press for steel pipes according to claim 1, characterized in that: The sealing gasket (7) is cylindrical, with a through-hole in the middle, and is made of rubber. The number of the sealing gaskets (7) is the same as that of the limiting workpiece (3). The plurality of sealing gaskets (7) are rotatably arranged on the opposite surfaces of the two assembly shells (2). A box body (71) is provided at one end of the sealing gasket (7). The box body (71) extends into the through-hole of the sealing gasket (7) through a tube. The box body (71) inside the assembly shell (2) is connected to a water inlet pipe (711) and a pressurizing pipe (712). The box body (71) inside the assembly shell (2) is provided with a pressure gauge (72) and a solenoid valve (73). The solenoid valve (73) is arranged on the exhaust port of the box body (71).

8. The adjustable hydraulic press for steel pipes according to claim 7, characterized in that: Water is passed into the interior of the steel pipe (100) through the water inlet pipe (711), and the air inside the steel pipe (100) is discharged through the exhaust port until water flows out from the interior of the solenoid valve (73). The solenoid valve (73) is closed, and the interior of the steel pipe (100) is pressurized through the pressure pipe (712). The water pressure inside the steel pipe (100) is displayed by the pressure gauge (72). When the value of the pressure gauge (72) stabilizes at the pressure value required for detection, the pressurization is stopped and the steel pipe (100) is tested.

9. The adjustable hydraulic press for steel pipes according to claim 8, characterized in that: The plurality of sealing pads (7) are connected to a belt (70), and the belt (70) is driven by a motor, that is, the belt (70) rotates to drive the plurality of sealing pads (7), and the plurality of sealing pads (7) drive the plurality of steel pipes (100) to rotate.

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