Hydraulic pressure testing machine with lifting function for steel pipe

Abstract

The utility model relates to the technical field of hydraulic pressure testing machines, and discloses a hydraulic pressure testing machine with a lifting function for a steel pipe, which comprises a supporting device and a working table, an electric push rod is arranged in the working table, the supporting device is arranged in the working table, and the supporting device comprises a detection device, a lifting plate and a connecting assembly. The detection device is in threaded connection with the upper end of the lifting plate, and the connecting assembly is installed at the upper end of the lifting plate. According to the water pressure testing machine with the lifting function for the steel pipe, the detection device, the lifting plate and the connecting assembly are arranged, and the detection device is in threaded connection with the upper end of the lifting plate, so that the detection device can be disassembled and replaced, the detection device can be disassembled quickly and conveniently, and a large amount of time is not needed for maintenance; detection devices of different specifications are in threaded connection with the upper end of the lifting plate, and the sliding frame is pulled to slide on the surface of the sliding metal plate according to the specifications of the detection devices, so that the steel pipe can be clamped and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of water pressure testing machines, in particular to a water pressure testing machine with a lifting function for steel pipes. Background Art

[0002] After the steel pipe is produced, a hydraulic pressure testing machine is often used to test the steel pipe's pressure-bearing capacity and whether there is any water leakage in the steel pipe.

[0003] The prior art discloses an application number: CN202022865724.6, which is a pipe water pressure testing machine, comprising a frame and a pipe support frame and a pipe positioning and sealing device installed on the frame; the pipe positioning and sealing device comprises a fixing plate, a positioning device and a sealing device; the positioning device comprises a driving motor, the power output end of the driving motor is fixedly connected to a bevel gear disk, the outer surface of the bevel gear disk is meshedly connected to a bevel gear, and the center of the outer surface of the bevel gear is fixedly connected to a threaded rod. The beneficial effects of the embodiment of the utility model are as follows: when the driving motor is started, the bevel gear disk is driven to rotate, and the meshed bevel gears rotate separately, and the rotation directions of the two bevel gears are opposite. Through the threaded rod, the two positioning plates are moved toward the center of the frame, that is, the pipe is clamped and positioned by the two positioning plates, fully ensuring the stability of the pipe during sealing and subsequent water pressure testing.

[0004] The two fixing plates are fixedly connected to the upper surface of the frame. When facing steel pipes of different specifications, the fixing plates need to be cut and disassembled. When cutting, it is easy to cause damage to the connection between the fixing plates or the frame, which requires a lot of time to repair. Utility Model Content

[0005] The purpose of the utility model is to provide a hydraulic testing machine with a lifting function for steel pipes to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a hydraulic pressure testing machine with a lifting function for steel pipes, comprising a supporting device and a workbench, wherein an electric push rod is installed inside the workbench, and the supporting device is installed inside the workbench.

[0007] The supporting device includes a detection device, a lifting plate and a connecting assembly. The detection device is threadedly connected to the upper end of the lifting plate, and the connecting assembly is installed on the upper end of the lifting plate.

[0008] Preferably, the connecting assembly includes a connecting piece, a metal rod, a sliding frame, a limiting threaded rod, a sliding metal plate, a vertical threaded rod and a metal cross rod, the connecting piece is threadedly connected to the top surface of the sliding frame, the vertical threaded rod is fixedly connected to the top surface of the sliding frame, the limiting threaded rod is movably connected to the upper end of the sliding frame, the limiting threaded rod is inserted into the upper end of the sliding metal plate, the metal cross rod is slidably connected to the lower end of the sliding metal plate, and the metal rod is fixedly connected to the front end of the connecting piece.

[0009] Preferably, the number of the metal rods is four, two of the metal rods form a group, the two groups of metal rods are distributed left and right, and the two metal rods on the same side are distributed front and back, so that the metal rods can maintain the balance of the connector.

[0010] Preferably, the limiting threaded rod is threadedly connected to the lower end of the connecting piece, and the connecting piece is threadedly connected to the top surface of the sliding frame, pushing the connecting piece to move downward, and the connecting piece slides on the threaded end surface of the limiting threaded rod, which can threadably fix the connecting piece and the metal rod.

[0011] Preferably, the sliding frame is movably connected to the top surface of the workbench, the sliding metal plate is movably connected to the top surface of the workbench, and the sliding metal plate drives the metal rod to slide on the top surface of the workbench, thereby adjusting the position of the connecting piece.

[0012] Preferably, the metal cross bar is threadedly connected to the upper end of the lifting plate, and the metal rod is slidably connected to the upper end of the detection device. The metal cross bar and the metal rod can maintain the balance of the connector, the sliding frame and the sliding metal plate.

[0013] Preferably, there are two lifting plates, which are distributed on the left and right. The two lifting plates are slidably connected to the outward end of the workbench. The lifting plates are threadedly connected to the lower end of the internal piston rod of the electric push rod. The electric push rod can push the lifting plates up and down, and the lifting plates slide on the internal surface of the workbench, so that the position of the lifting plates can be adjusted.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The hydraulic testing machine for steel pipes with a lifting function is provided with a detection device, a lifting plate and a connecting assembly. The upper ends of the detection device and the lifting plate are threadedly connected, so that the detection device can be disassembled and replaced, making the disassembly of the detection device quick and convenient, and does not require a lot of time for maintenance, thereby increasing the service life of the device.

[0016] 2. The hydraulic pressure testing machine for the steel pipe has a lifting function. By setting a limit threaded rod, a sliding frame and a connecting piece, the upper ends of the detection devices and the lifting plate of different specifications are threadedly connected. According to the specifications of the detection device, the sliding frame is pulled to a sliding position on the surface of the sliding metal plate, so that the steel pipe can be clamped and fixed, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall three-dimensional schematic diagram of the utility model;

[0018] Figure 2 For this utility model Figure 1 A local enlarged schematic diagram of the structure at point A;

[0019] Figure 3 This is a front view schematic diagram of the support device of the utility model;

[0020] Figure 4 For this utility model Figure 3 Schematic diagram of the cross section at AA in the middle.

[0021] In the figure: 1. Support device; 11. Detection device; 12. Lifting plate; 13. Connecting assembly; 131. Connecting piece; 132. Metal rod; 133. Sliding frame; 134. Limiting threaded rod; 135. Sliding metal plate; 136. Vertical threaded rod; 137. Metal cross bar; 2. Workbench; 3. Electric push rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 , the utility model provides the following technical solutions:

[0024] The hydraulic testing machine for steel pipes with a lifting function comprises a supporting device 1 and a workbench 2. An electric push rod 3 is installed inside the workbench 2, and the supporting device 1 is installed inside the workbench 2.

[0025] The supporting device 1 includes a detection device 11, a lifting plate 12 and a connecting assembly 13. The detection device 11 is threadedly connected to the upper end of the lifting plate 12. There are two lifting plates 12, and the two lifting plates 12 are distributed on the left and right. The two lifting plates 12 are slidably connected to the outward end of the workbench 2. The lifting plate 12 is threadedly connected to the lower end of the internal piston rod of the electric push rod 3. The electric push rod 3 can push the lifting plate 12 up and down. The lifting plate 12 slides on the inner surface of the workbench 2, so that the position of the lifting plate 12 can be adjusted. The connecting assembly 13 is installed at the upper end of the lifting plate 12.

[0026] The connecting assembly 13 includes a connecting piece 131, a metal rod 132, a sliding frame 133, a limiting threaded rod 134, a sliding metal plate 135, a vertical threaded rod 136 and a metal cross bar 137. The connecting piece 131 is threadedly connected to the top surface of the sliding frame 133, the sliding frame 133 is movably connected to the top surface of the workbench 2, the sliding metal plate 135 is movably connected to the top surface of the workbench 2, the sliding metal plate 135 drives the metal rod 132 to slide on the top surface of the workbench 2, and can adjust the position of the connecting piece 131. The vertical threaded rod 136 is fixedly connected to the top surface of the sliding frame 133, the limiting threaded rod 134 is movably connected to the upper end of the sliding frame 133, the limiting threaded rod 134 is inserted into the upper end of the sliding metal plate 135, the limiting threaded rod 134 is threadedly connected to the lower end of the connecting piece 131, and the connecting piece 131 is threadedly connected to the top of the sliding frame 133 The surface pushes the connecting piece 131 to move downward, and the connecting piece 131 slides on the threaded end surface of the limiting threaded rod 134, which can threadably fix the connecting piece 131 and the metal rod 132. The metal cross bar 137 is slidably connected to the lower end of the sliding metal plate 135. The metal cross bar 137 is threadedly connected to the upper end of the lifting plate 12, and the metal rod 132 is slidably connected to the upper end of the detection device 11. The metal cross bar 137 and the metal rod 132 can maintain the balance of the connecting piece 131, the sliding frame 133 and the sliding metal plate 135. The metal rod 132 is fixedly connected to the front end of the connecting piece 131. There are four metal rods 132, two metal rods 132 in a group, and the two groups of metal rods 132 are distributed left and right. The two metal rods 132 on the same side are distributed front and back. The metal rods 132 can maintain the balance of the connecting piece 131.

[0027] When in use, push the metal cross bar 137 into the upper end of the lifting plate 12 so that the metal cross bar 137 passes through the lower end of the sliding metal plate 135, and then turn the nut, which rotates on the threaded end surface of the metal cross bar 137, so that the position between the metal cross bar 137, the lifting plate 12 and the sliding metal plate 135 can be determined.

[0028] The detection device 11 is pushed to move downward, and the detection device 11 and the upper end of the lifting plate 12 are fixed with threads, so that the position of the detection device 11 can be determined.

[0029] Hold the upper end of the connecting piece 131 and push the connecting piece 131 and the top surface of the sliding frame 133 to flexibly connect. At the same time, the connecting piece 131 slides on the threaded end surface of the limiting threaded rod 134, and then turn the nut. The nut can threadably fix the sliding frame 133 and the connecting piece 131.

[0030] Push the sliding frame 133 to move toward each other, and the sliding frame 133 slides on the surface of the sliding metal plate 135. Then push the limiting threaded rod 134 to pass through the connection between the sliding frame 133 and the sliding metal plate 135, and then turn the nut. The nut can threadably fix the sliding frame 133 and the sliding metal plate 135.

[0031] Push the sliding metal plate 135 to slide on the surface of the metal cross bar 137, the sliding metal plate 135 can drive the sliding frame 133 to move, the sliding frame 133 can drive the connecting parts 131 to slide, and the connecting parts 131 can push the metal rod 132 to be inserted into the interior of the detection device 11.

[0032] When the metal rod 132 is inserted into the interior of the detection device 11, the connecting piece 131 is pulled upward, and the connecting piece 131 can drive the sliding frame 133 to move upward, so that the sliding frame 133 slides on the surface of the sliding metal plate 135, and the sliding frame 133 slides on the surface of the limiting threaded rod 134, thereby being able to adjust the position of the sliding frame 133.

[0033] Then, steel pipes of different specifications are inserted into the upper end of the detection device 11, and the surface of the steel pipe and the upper end of the connector 131 are movably connected, so that the position of the steel pipe can be determined, which facilitates the water pressure detection operation on the steel pipe.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic testing machine for steel pipes with a lifting function, comprising a supporting device (1) and a workbench (2), characterized in that: An electric push rod (3) is installed inside the workbench (2), and the supporting device (1) is installed inside the workbench (2); The supporting device (1) comprises a detection device (11), a lifting plate (12) and a connecting assembly (13), wherein the detection device (11) is threadedly connected to the upper end of the lifting plate (12), and the connecting assembly (13) is installed on the upper end of the lifting plate (12).

2. The hydraulic testing machine with lifting function for steel pipes according to claim 1, characterized in that: The connecting assembly (13) includes a connecting piece (131), a metal rod (132), a sliding frame (133), a limiting threaded rod (134), a sliding metal plate (135), a vertical threaded rod (136) and a metal cross bar (137), wherein the connecting piece (131) is threadedly connected to the top surface of the sliding frame (133), the vertical threaded rod (136) is fixedly connected to the top surface of the sliding frame (133), the limiting threaded rod (134) is movably connected to the upper end of the sliding frame (133), the limiting threaded rod (134) is plugged into the upper end of the sliding metal plate (135), the metal cross bar (137) is slidably connected to the lower end of the sliding metal plate (135), and the metal rod (132) is fixedly connected to the front end of the connecting piece (131).

3. The hydraulic testing machine with lifting function for steel pipes according to claim 2, characterized in that: The number of the metal rods (132) is four, two metal rods (132) form a group, the two groups of metal rods (132) are distributed left and right, and the two metal rods (132) on the same side are distributed front and back.

4. The hydraulic testing machine with lifting function for steel pipes according to claim 3, characterized in that: The limiting threaded rod (134) is threadedly connected to the lower end of the connecting member (131), and the connecting member (131) is threadedly connected to the top surface of the sliding frame (133).

5. The hydraulic testing machine with lifting function for steel pipes according to claim 4, characterized in that: The sliding frame (133) is movably connected to the top surface of the workbench (2), and the sliding metal plate (135) is movably connected to the top surface of the workbench (2).

6. The hydraulic testing machine with lifting function for steel pipes according to claim 5, characterized in that: The metal crossbar (137) is threadedly connected to the upper end of the lifting plate (12), and the metal rod (132) is slidably connected to the upper end of the detection device (11).

7. The hydraulic testing machine with lifting function for steel pipes according to claim 6, characterized in that: There are two lifting plates (12), which are distributed on the left and right. The two lifting plates (12) are slidably connected to the outward end of the workbench (2), and the lifting plates (12) are threadedly connected to the lower end of the internal piston rod of the electric push rod (3).

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