Adjustable hydraulic press for steel pipe

Abstract

The invention provides an adjustable hydraulic press for a steel pipe, and relates to the technical field of steel pipe water pressure testing. The left end and the right end of the supporting base are each provided with an elastic anti-rotation mechanism. The pressure applying mechanism is mounted on the elastic anti-rotation mechanism on the left side; the sealing mechanism is mounted on the elastic anti-rotation mechanism on the right side; a multifunctional mechanism is installed at the right end of the supporting base and used for moving the sealing mechanism, and the multifunctional mechanism is further used for detecting the coaxiality of the steel pipe. A centering clamping mechanism is installed on the supporting base and used for clamping a steel pipe. According to the invention, a worker can conveniently and rapidly adjust a proper circular pressure applying head and a circular sealing head according to the diameter of a steel pipe, and test requirements of steel pipes with different sizes are met; the problem that when the diameter of a steel pipe is changed, a worker needs to fix a sealing structure of the corresponding size through a screw again, and rapid adjustment of sealing structures of different sizes cannot be achieved is solved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of steel pipe water pressure testing, more particularly, relates to an adjustable water pressure machine for steel pipe. BACKGROUND

[0002] The water pressure test of steel pipe is mainly to ensure its pressure-bearing capacity, sealing property and structural integrity; by simulating the actual working pressure or higher pressure, it detects whether there are defects such as leakage, cracks or deformation; this test can find potential safety hazards in advance.

[0003] The currently used water pressure machine for steel pipe still has the following problems: 1. When the diameter of the steel pipe is changed, the staff needs to re-fix the sealing structure of the corresponding size through screws, which cannot realize the quick adjustment of sealing structures of different sizes; 2. During the water pressure test of the steel pipe, the machine generally cannot continuously emit a prompt sound, which causes irrelevant personnel to easily approach the machine, and when the coaxiality deviation of the steel pipe to be tested is large or the diameter of the steel pipe to be tested does not match the sealing structure, the machine will still operate normally, which easily causes deformation of the machine; 3. The steel pipe cannot be guaranteed to be in a clamped and positioned state before the water pressure test, and when the steel pipe to be tested is forgotten to be clamped and positioned, the sealing structures at both ends are not convenient to insert. SUMMARY

[0004] The present application relates to an adjustable water pressure machine for steel pipe, which has an elastic anti-rotation mechanism, a pressure applying mechanism, a sealing mechanism, a multifunctional mechanism and a centering and clamping mechanism; it is convenient for the staff to quickly adjust the appropriate circular pressure head and circular sealing head according to the diameter of the steel pipe, which meets the test requirements of steel pipes of different sizes; the buzzer at the rear side continuously works and can emit a sound to prompt irrelevant personnel to stay away from the machine; it is convenient for the staff to replace the steel pipe or replace the appropriate circular pressure head and circular sealing head in time, which plays an automatic protection role for the machine; the staff cannot start the electric telescopic rod A, which ensures that the steel pipe must be in a centered and clamped state before the electric telescopic rod A works; the problems of being unable to realize the quick adjustment of sealing structures of different sizes, being unable to continuously emit a prompt sound, the machine still operating normally when the coaxiality deviation of the steel pipe to be tested is large or the diameter of the steel pipe to be tested does not match the sealing structure, and the steel pipe not being guaranteed to be in a clamped and positioned state before the water pressure test are solved.

[0005] The application provides a water pressure machine for testing steel pipes, which can be adjusted, and belongs to the field of steel pipe testing.

[0006] In at least some embodiments, the elastic anti-rotation mechanism comprises an anti-rotation support, a V-shaped mounting bracket and an elastic anti-rotation rod; the anti-rotation support is fixedly installed on the supporting base; the V-shaped mounting bracket is fixedly installed on the top of the anti-rotation support; and the elastic anti-rotation rod is slidingly installed on the V-shaped mounting bracket and the anti-rotation support, and the bottom end of the elastic anti-rotation rod is in a semispherical structure.

[0007] In at least some embodiments, the elastic anti-rotation mechanism further comprises a reset ring A and a reset spring A; the reset ring A is fixedly installed outside the elastic anti-rotation rod; and the reset spring A is sleeved outside the elastic anti-rotation rod, and is located between the V-shaped mounting bracket and the reset ring A.

[0008] In at least some embodiments, the pressure applying mechanism comprises an installation disc A, a circular pressure head, a rubber sealing ring A and a high-pressure hose; the installation disc A is rotationally installed on the left anti-rotation support, and an arc-shaped anti-rotation groove A is formed in the outer wall of the installation disc A, and the upper arc-shaped anti-rotation groove A is in contact with the bottom end of the left elastic anti-rotation rod; the circular pressure head is provided in a circle, and the circular pressure head is fixedly installed on the right side of the installation disc A; the rubber sealing ring A is provided in a circle, and the rubber sealing ring A is installed on the circular pressure head; and the high-pressure hose is provided in a circle, and the right end of the high-pressure hose is fixedly installed inside the installation disc A and the circular pressure head.

[0009] In at least some embodiments, the sealing mechanism comprises an installation disc B, a circular guide rod and a circular sealing head; the installation disc B is rotationally installed on the right anti-rotation support, and an arc-shaped anti-rotation groove B is formed in the outer wall of the installation disc B, and the upper arc-shaped anti-rotation groove B is in contact with the bottom end of the right elastic anti-rotation rod; the circular guide rod is provided in a circle, and the circular guide rod is slidingly installed on the installation disc B; and the circular sealing head is provided in a circle, and the circular sealing head is fixedly installed on the left side of the circular guide rod, and each circular sealing head is connected with two circular guide rods.

[0010] In at least some embodiments, the sealing mechanism further comprises: a rubber sealing ring B, a reset ring B, and a reset spring B; the rubber sealing ring B is provided in a ring, and a ring of rubber sealing rings B is installed on a ring of circular sealing heads; the reset ring B is provided in a ring, and a ring of reset rings B is fixedly installed on the right end of a ring of circular guide rods; the reset spring B is provided in a ring, and a ring of reset springs B is sleeved on the outside of a ring of circular guide rods, and a ring of reset springs B is located between the installation disc B and a ring of reset rings B.

[0011] In at least some embodiments, the multifunctional mechanism comprises: an L-shaped frame, an electric telescopic rod A, a limiting baffle A, and a limiting baffle B; the L-shaped frame is slidingly installed on the support base; the electric telescopic rod A is fixedly installed on the L-shaped frame; the limiting baffle A is fixedly installed on the L-shaped frame, and the left side of the limiting baffle A is in contact with the support base; the limiting baffle B is fixedly installed on the left end of the L-shaped frame.

[0012] In at least some embodiments, the multifunctional mechanism further comprises: a circular limiting tube, a reset spring C, and a control button; the circular limiting tube is fixedly installed on the right side of the limiting baffle B; the reset spring C is sleeved on the outside of the circular limiting tube, and the reset spring C is located between the support base and the limiting baffle B; the control button is fixedly installed on the inside of the circular limiting tube; when the right side of the circular limiting tube is in contact with the support base, the control button is in a pressed state.

[0013] In at least some embodiments, the centering and clamping mechanism comprises: four circular guide shafts, two centering and clamping frames, two electric telescopic rods B, and an installation bezel; the four circular guide shafts are provided in four, and the four circular guide shafts are slidingly installed on the support base; the two centering and clamping frames are provided in two, and the two centering and clamping frames are fixedly installed on the inside of the four circular guide shafts; the two electric telescopic rods B are provided in two, and the two electric telescopic rods B are fixedly installed on the support base, and the output shafts of the two electric telescopic rods B are fixedly connected with the two centering and clamping frames; the installation bezel is fixedly installed on the front centering and clamping frame.

[0014] In at least some embodiments, the centering and clamping mechanism further comprises: a control panel; the control panel is fixedly installed on the installation bezel, and the control panel is electrically connected with the electric telescopic rod A, the control button, and the two electric telescopic rods B; the top of the control panel is provided with two control keys A, and the two control keys A are used to control the two electric telescopic rods B; the top of the control panel is provided with two control keys B, and the two control keys B are used to control the electric telescopic rod A; two buzzers are provided on the control panel; when the output shaft of the electric telescopic rod A is not fully extended and the control button is in a pressed state, the front buzzer works; when the output shaft of the electric telescopic rod A is fully extended and the control button is in a pressed state, the rear buzzer works.

[0015] Compared with the prior art, the present application has the following beneficial effects: 1、The present application can quickly adjust the appropriate circular pressing head and circular sealing head according to the diameter of the steel pipe, meet the testing requirements of steel pipes of different sizes, and the adjusting mode does not require the staff to twist the screw, so that the efficiency of water pressure testing of steel pipes of different sizes is higher; the two elastic anti-rotation rods can limit the installation disc A and the installation disc B after rotation; In addition, when the staff rotates the installation disc A or the installation disc B, the corresponding elastic anti-rotation rod can automatically move upward under the action of the bottom hemispherical structure; when the installation disc A or the installation disc B is rotated to 90 degrees, 180 degrees or 270 degrees, the elastic anti-rotation rod can automatically reset downward under the action of the reset spring A.

[0016] 2、When the output shaft of the electric telescopic rod A is extended, the output shaft of the electric telescopic rod A first passes through the installation disc B and then contacts the corresponding circular sealing head; when the output shaft of the electric telescopic rod A is fully extended, the circular sealing head automatically moves to the left, so that the left end of the steel pipe is inserted into the corresponding circular pressing head and the right end of the steel pipe is inserted into the corresponding circular sealing head, thereby realizing automatic sealing of both ends of the steel pipe; when the pressure testing pump on the corresponding high-pressure hose is working, the reset spring C will be compressed under the action of water pressure, so that the control button is automatically pressed; when the reset spring C is compressed, the corresponding rubber sealing ring A and the corresponding rubber sealing ring B will always contact the steel pipe; when the control button is in the pressed state, the buzzer at the rear side continuously works and can emit a sound, prompting unrelated personnel to stay away from the machine; In addition, when the coaxiality deviation of the steel pipe to be tested is large or the diameter of the steel pipe to be tested does not match the circular pressing head and the circular sealing head, the circular pressing head and the circular sealing head cannot be accurately inserted into the steel pipe, and the reset spring C will also be compressed, so that the control button is automatically pressed; at this time, when the control button is pressed, the control panel controls the electric telescopic rod A to stop working; at the same time, the buzzer at the front side works, so that the staff can know that the coaxiality deviation of the steel pipe is large or the diameter of the steel pipe to be tested does not match the circular pressing head and the circular sealing head, and the staff can replace the steel pipe or replace the appropriate circular pressing head and circular sealing head in time, thereby automatically protecting the machine and avoiding deformation of the machine.

[0017] 3、When the output shafts of the two electric telescopic rods B are extended, the two centering clamping frames automatically clamp the steel pipe, so that the steel pipe is in a stable state and is conducive to the insertion of the circular pressing head and the circular sealing head; under the premise of ensuring the clamping effect, the friction with the steel pipe is reduced, which is conducive to the movement of the steel pipe. In addition, when the output shafts of the two electric telescopic rods B are in the retracted state, the two centering clamping frames are in the open state, facilitating the placement and removal of the steel pipe; at the same time, the support base can shield the two control buttons B, so that the staff cannot start the electric telescopic rod A, ensuring that the steel pipe must be in the centering clamping state before the electric telescopic rod A works; when the output shafts of the two electric telescopic rods B are in the extended state, the two centering clamping frames are in the closed state, realizing the centering clamping of the steel pipe; at the same time, the support base cannot continue to shield the two control buttons B, at this time, the staff can control the electric telescopic rod A through the two control buttons B. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0019] The drawings in the following description are only related to some embodiments of the present application, and are not a limitation on the present application.

[0020] In the drawings: Figure 1 A perspective structural schematic view of the present application is shown; Figure 2 A structural schematic view of the elastic anti-rotation mechanism of the present application is shown; Figure 3 A structural schematic view of the pressure applying mechanism of the present application is shown; Figure 4 A structural schematic view of the sealing mechanism of the present application is shown; Figure 5 A structural schematic view of the present application Figure 1 is shown; Figure 6 A structural schematic view of the multifunctional mechanism of the present application is shown; Figure 7 A front view structural schematic view of the present application Figure 1 is shown; Figure 8 A partial enlarged structural schematic view of the B region in the present application is shown; Figure 7 Figure 9 A structural schematic view of the centering clamping mechanism of the present application is shown; Figure 10 A partial enlarged structural schematic view of the C region in the present application is shown; Figure 7 Figure 11 A top view structural schematic view of the present application Figure 1 is shown; Figure 12 A structural schematic view of the present application Figure 11 after the output shafts of the two electric telescopic rods B are retracted is shown.​​

[0021] List of reference signs: 100, support base; 200, steel pipe; 300, elastic anti-rotation mechanism; 301, anti-rotation support; 302, V-shaped mounting bracket; 303, elastic anti-rotation rod; 304, reset ring A; 305, reset spring A; 400, pressure applying mechanism; 401, mounting disc A; 4011, arc-shaped anti-rotation groove A; 402, circular pressure applying head; 403, rubber sealing ring A; 404, high-pressure hose; 500, sealing mechanism; 501, mounting disc B; 5011, arc-shaped anti-rotation groove B; 502, circular guide rod; 503, circular sealing head; 504, rubber sealing ring B; 505, reset ring B; 506, reset spring B; 600, multifunctional mechanism; 601, L-shaped frame; 602, electric telescopic rod A; 603, limiting baffle A; 604, limiting baffle B; 605, circular limiting tube; 606, reset spring C; 607, control button; 700, centering and clamping mechanism; 701, circular guide shaft; 702, centering and clamping bracket; 703, electric telescopic rod B; 704, mounting frame; 705, control panel; 7051, control key A; 7052, control key B; 7053, buzzer. DETAILED DESCRIPTION

[0022] In order to make the purpose, scheme and advantages of the technical solutions of the present application clearer, the technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of specific embodiments of the present application. Unless otherwise specified, the terms used herein have the meanings commonly used in the art. The same reference signs in the drawings represent the same components.

[0023] Embodiment: Please refer to Figures 1 to 12 The present application provides a water pressure machine for steel pipes, which can be adjusted, for testing steel pipes 200; comprising: a support base 100; elastic anti-rotation mechanisms 300 are installed at the left and right ends of the support base 100; a pressure applying mechanism 400 is installed on the left elastic anti-rotation mechanism 300, and the pressure applying mechanism 400 is used for sealing the left end of the steel pipe 200; a sealing mechanism 500 is installed on the right elastic anti-rotation mechanism 300, and the sealing mechanism 500 is used for sealing the right end of the steel pipe 200; a multifunctional mechanism 600 is installed at the right end of the support base 100, and the multifunctional mechanism 600 is used for moving the sealing mechanism 500 and also for detecting the coaxiality of the steel pipe 200; a centering and clamping mechanism 700 is installed on the support base 100, and the centering and clamping mechanism 700 is used for clamping the steel pipe 200.

[0024] In the embodiments of the present disclosure, as shown in Figures 2 to 5 The elastic anti-rotation mechanism 300 comprises an anti-rotation support 301, a V-shaped mounting bracket 302 and an elastic anti-rotation rod 303. The anti-rotation support 301 is fixedly installed on the support base 100. The V-shaped mounting bracket 302 is fixedly installed on the top of the anti-rotation support 301. The elastic anti-rotation rod 303 is slidingly installed on the V-shaped mounting bracket 302 and the anti-rotation support 301, and the bottom end of the elastic anti-rotation rod 303 is in a semispherical structure. The elastic anti-rotation mechanism 300 further comprises a reset ring A 304 and a reset spring A 305. The reset ring A 304 is fixedly installed outside the elastic anti-rotation rod 303. The reset spring A 305 is sleeved outside the elastic anti-rotation rod 303, and is located between the V-shaped mounting bracket 302 and the reset ring A 304. The pressure applying mechanism 400 comprises a mounting disc A 401, a circular pressure head 402, a rubber sealing ring A 403 and a high-pressure hose 404. The mounting disc A 401 is rotatably installed on the left anti-rotation support 301, and an arc-shaped anti-rotation groove A 4011 is formed in the outer wall of the mounting disc A 401. The upper arc-shaped anti-rotation groove A 4011 is in contact with the bottom end of the left elastic anti-rotation rod 303. The circular pressure head 402 is provided in a circle, and one circle of the circular pressure head 402 is fixedly installed on the right side of the mounting disc A 401. The rubber sealing ring A 403 is provided in a circle, and one circle of the rubber sealing ring A 403 is installed on one circle of the circular pressure head 402. The high-pressure hose 404 is provided in a circle, and the right end of one circle of the high-pressure hose 404 is fixedly installed inside the mounting disc A 401 and one circle of the circular pressure head 402. The sealing mechanism 500 comprises a mounting disc B 501, a circular guide rod 502 and a circular sealing head 503; the mounting disc B 501 is rotationally mounted on the anti-rotation support 301 on the right side, and an arc-shaped anti-rotation groove B 5011 is formed in the outer wall of the mounting disc B 501, and the upper arc-shaped anti-rotation groove B 5011 is in contact with the bottom end of the elastic anti-rotation rod 303 on the right side; the circular guide rod 502 is provided in one circle, and one circle of the circular guide rod 502 is slidingly mounted on the mounting disc B 501; the circular sealing head 503 is provided in one circle, and one circle of the circular sealing head 503 is fixedly mounted on the left side of one circle of the circular guide rod 502, and each circular sealing head 503 is connected with two circular guide rods 502; the sealing mechanism 500 further comprises a rubber sealing ring B 504, a reset ring B 505 and a reset spring B 506; the rubber sealing ring B 504 is provided in one circle, and one circle of the rubber sealing ring B 504 is mounted on one circle of the circular sealing head 503; the reset ring B 505 is provided in one circle, and one circle of the reset ring B 505 is fixedly mounted on the right end of one circle of the circular guide rod 502; the reset spring B 506 is provided in one circle, and one circle of the reset spring B 506 is sleeved on the outside of one circle of the circular guide rod 502, and one circle of the reset spring B 506 is located between the mounting disc B 501 and one circle of the reset ring B 505; The specific role is that: since the mounting disc A 401 is rotationally mounted on the anti-rotation support 301 on the left side, and the mounting disc B 501 is rotationally mounted on the anti-rotation support 301 on the right side, it is convenient for the staff to quickly adjust the appropriate circular pressure head 402 and circular sealing head 503 according to the diameter of the steel pipe 200, so as to meet the test requirements of steel pipes 200 of different sizes; the staff does not need to twist the screw, so that the steel pipes 200 of different sizes have higher efficiency when performing water pressure test; and since the upper arc-shaped anti-rotation groove A 4011 is in contact with the bottom end of the elastic anti-rotation rod 303 on the left side, and the upper arc-shaped anti-rotation groove B 5011 is in contact with the bottom end of the elastic anti-rotation rod 303 on the right side, the mounting disc A 401 and the mounting disc B 501 after rotation have a limiting effect; In addition, since the two reset springs A 305 are sleeved on the outside of the two elastic anti-rotation rods 303, and the two reset springs A 305 are located between the two V-shaped mounting frames 302 and the two reset rings A 304, and the bottom end of the two elastic anti-rotation rods 303 is in a hemispherical structure, when the staff rotates the mounting disc A 401 or the mounting disc B 501, the corresponding elastic anti-rotation rod 303 can automatically move upward under the action of the bottom hemispherical structure; when the mounting disc A 401 or the mounting disc B 501 is rotated to ninety degrees, one hundred and eighty degrees or two hundred and seventy degrees, the elastic anti-rotation rod 303 can automatically reset downward under the action of the reset spring A 305.

[0025] In the embodiments of the present disclosure, as Figure 6 and Figure 8As shown, the multifunctional mechanism 600 comprises an L-shaped frame 601, an electric telescopic rod A 602, a limiting baffle A 603, and a limiting baffle B 604; the L-shaped frame 601 is slidingly installed on the support base 100; the electric telescopic rod A 602 is fixedly installed on the L-shaped frame 601; the limiting baffle A 603 is fixedly installed on the L-shaped frame 601, and the left side of the limiting baffle A 603 is in contact with the support base 100; the limiting baffle B 604 is fixedly installed on the left end of the L-shaped frame 601; the multifunctional mechanism 600 further comprises a circular limiting tube 605, a reset spring C 606, and a control button 607; the circular limiting tube 605 is fixedly installed on the right side of the limiting baffle B 604; the reset spring C 606 is sleeved outside the circular limiting tube 605, and the reset spring C 606 is located between the support base 100 and the limiting baffle B 604; the control button 607 is fixedly installed inside the circular limiting tube 605; when the right side of the circular limiting tube 605 is in contact with the support base 100, the control button 607 is in a pressed state; The specific action is that: because the electric telescopic rod A 602 is fixedly installed on the L-shaped frame 601, when the output shaft of the electric telescopic rod A 602 is extended, the output shaft of the electric telescopic rod A 602 first passes through the installation disc B 501 and then contacts the corresponding circular sealing head 503; when the output shaft of the electric telescopic rod A 602 is fully extended, the circular sealing head 503 automatically moves to the left, so that the left end of the steel pipe 200 is inserted into the corresponding circular pressing head 402, and the right end of the steel pipe 200 is inserted into the corresponding circular sealing head 503, thereby realizing automatic sealing of both ends of the steel pipe 200; because the reset spring C 606 is sleeved outside the circular limiting tube 605, and the reset spring C 606 is located between the support base 100 and the limiting baffle B 604, and the control button 607 is fixedly installed inside the circular limiting tube 605, when the pressure test pump on the corresponding high-pressure hose 404 is working, the reset spring C 606 will be compressed under the action of water pressure, so that the control button 607 is automatically pressed; when the reset spring C 606 is compressed, the corresponding rubber sealing ring A 403 and the corresponding rubber sealing ring B 504 will always be in contact with the steel pipe 200; when the control button 607 is in the pressed state, the rear buzzer 7053 continuously works and can emit a sound to prompt unrelated personnel to stay away from the machine; In addition, since the L-shaped frame 601 is slidingly installed on the support base 100, and the reset spring C 606 is sleeved outside the circular limiting tube 605, and the reset spring C 606 is located between the support base 100 and the limiting baffle B 604, when the coaxiality deviation of the steel pipe 200 to be tested is large or the diameter of the steel pipe 200 to be tested does not match the circular pressing head 402 and the circular sealing head 503, the circular pressing head 402 and the circular sealing head 503 cannot be accurately inserted into the steel pipe 200, and the reset spring C 606 will also be compressed, so that the control button 607 is automatically pressed; at this time, when the control button 607 is pressed, the control panel 705 controls the electric telescopic rod A 602 to stop working; at the same time, the front buzzer 7053 works, which is convenient for the worker to know that the coaxiality deviation of the steel pipe 200 is large or the diameter of the steel pipe 200 to be tested does not match the circular pressing head 402 and the circular sealing head 503, so that the worker can replace the steel pipe 200 or replace the appropriate circular pressing head 402 and circular sealing head 503 in time, which plays an automatic protection role for the machine and avoids the deformation of the machine; Wherein, the sound emitted by the front buzzer 7053 is greater than the sound emitted by the rear buzzer 7053, which is convenient for the worker to distinguish, when the sound is large, it means that the machine is not working normally, and the steel pipe 200 needs to be replaced or the appropriate circular pressing head 402 and circular sealing head 503 need to be replaced; when the sound is medium, it means that the machine is working normally, which plays a role in continuously prompting irrelevant personnel.

[0026] In the embodiments of the present disclosure, as Figures 9 to 12As shown, the centering clamping mechanism 700 includes: circular guide shafts 701, centering clamping frames 702, electric telescopic rods B703, and mounting frame 704; four circular guide shafts 701 are provided, and the four circular guide shafts 701 are slidably mounted on the support base 100; two centering clamping frames 702 are provided, and the two centering clamping frames 702 are fixedly mounted on the inner side of the four circular guide shafts 701; two electric telescopic rods B703 are provided, and the two electric telescopic rods B703 are fixedly mounted on the support base 100, and the output shafts of the two electric telescopic rods B703 are fixedly connected to the two centering clamping frames 702; the mounting frame 704 is fixedly mounted on the front centering clamping frame 702; the centering clamping mechanism 700 also includes: a control panel 705; the control panel 705 is fixedly mounted on the mounting frame 704. The control panel 705 is located on frame 704 and is electrically connected to electric telescopic rod A602, control button 607, and two electric telescopic rods B703. Two control buttons A7051 are located on the top of the control panel 705, and these buttons are used to control the two electric telescopic rods B703. Two control buttons B7052 are also located on the top of the control panel 705, and these buttons are used to control electric telescopic rod A602. Two buzzers 7053 are located on the control panel 705. The front buzzer 7053 operates when the output shaft of electric telescopic rod A602 is not fully extended and control button 607 is pressed. The rear buzzer 7053 operates when the output shaft of electric telescopic rod A602 is fully extended and control button 607 is pressed. Its specific function is as follows: Since the two centering clamps 702 are fixedly installed on the inner side of the four circular guide shafts 701, and the two electric telescopic rods B703 are fixedly installed on the support base 100, and the output shafts of the two electric telescopic rods B703 are fixedly connected to the two centering clamps 702, when the output shafts of the two electric telescopic rods B703 extend, the two centering clamps 702 automatically clamp the steel pipe 200, so that the steel pipe 200 is in a stable state, which is conducive to the insertion of the circular pressure head 402 and the circular sealing head 503; and since the inner side of the two centering clamps 702 is an arc-shaped structure, the friction with the steel pipe 200 is reduced while ensuring the clamping effect, which is conducive to the movement of the steel pipe 200. Furthermore, when the output shafts of the two electric telescopic rods B703 are in the retracted state, the two centering clamps 702 are in the open state, facilitating the placement and removal of the steel pipe 200; simultaneously, the support base 100 can cover the two control buttons B7052 (such as...). Figure 12The staff cannot start the electric telescopic rod A602, and the steel pipe 200 must be in the center clamping state before the electric telescopic rod A602 works; when the output shafts of the two electric telescopic rods B703 are in the extended state, the two center clamping frames 702 are in the closed state, and the center clamping of the steel pipe 200 is realized; at the same time, the support base 100 cannot continue to block the two control buttons B7052 (as shown in Figure 11 At this time, the staff can control the electric telescopic rod A602 through the two control buttons B7052.

[0027] The specific use mode and role of the embodiment are as follows: When the embodiment is used, four pipes on an external pressure test pump are connected with the four high-pressure hoses 404 through the pipe joints, and then a corresponding circular pressure head 402 and a circular sealing head 503 are selected according to the diameter of the steel pipe 200 to be tested, so that the testing requirements of different sizes of steel pipes 200 are met; the staff does not need to twist the screw, so that the efficiency of the water pressure test of different sizes of steel pipes 200 is higher; when the staff rotates the installation disc A401 or the installation disc B501, the corresponding elastic anti-rotation rod 303 can automatically move upward under the action of the bottom hemispherical structure; when the installation disc A401 or the installation disc B501 is rotated to 90 degrees, 180 degrees or 270 degrees, the elastic anti-rotation rod 303 can automatically reset downward under the action of the reset spring A305; The steel pipe 200 to be tested is placed between the two center clamping frames 702, and then the staff controls the output shafts of the two electric telescopic rods B703 to extend through the two control buttons A7051; when the output shafts of the two electric telescopic rods B703 extend, the two center clamping frames 702 automatically clamp the steel pipe 200, so that the steel pipe 200 is in a stable state; at the same time, the support base 100 cannot continue to block the two control buttons B7052, and the staff controls the electric telescopic rod A602 through the two control buttons B7052; when the output shaft of the electric telescopic rod A602 extends, the output shaft of the electric telescopic rod A602 first passes through the installation disc B501 and then contacts the corresponding circular sealing head 503; when the output shaft of the electric telescopic rod A602 extends completely, the circular sealing head 503 automatically moves to the left, so that the left end of the steel pipe 200 is inserted into the corresponding circular pressure head 402, and the right end of the steel pipe 200 is inserted into the corresponding circular sealing head 503, thereby realizing the automatic sealing of the two ends of the steel pipe 200; when the pressure test pump on the corresponding high-pressure hose 404 works, the reset spring C606 is compressed under the action of water pressure, so that the control button 607 is automatically pressed; when the reset spring C606 is compressed, the corresponding rubber sealing ring A403 and the corresponding rubber sealing ring B504 are always in contact with the steel pipe 200; when the control button 607 is in the pressed state, the rear buzzer 7053 continuously works and can emit a sound, prompting unrelated personnel to stay away from the machine; When the coaxiality deviation of the steel pipe 200 to be tested is large or the diameter of the steel pipe 200 to be tested does not match the circular pressing head 402 and the circular sealing head 503, the circular pressing head 402 and the circular sealing head 503 cannot be accurately inserted in the steel pipe 200, and the return spring C 606 will also be compressed, so that the control button 607 is automatically pressed; at this time, when the control button 607 is pressed, the control panel 705 controls the electric telescopic rod A 602 to stop working; at the same time, the front buzzer 7053 works, so that the worker can know that the coaxiality deviation of the steel pipe 200 is large or the diameter of the steel pipe 200 to be tested does not match the circular pressing head 402 and the circular sealing head 503, so that the worker can replace the steel pipe 200 or replace the appropriate circular pressing head 402 and circular sealing head 503 in time, which plays an automatic protection role for the machine and avoids deformation of the machine; After the water pressure test of the steel pipe 200 is completed, the worker controls the output shafts of the two electric telescopic rods B 703 to shrink through the two control buttons A 7051, and when the output shafts of the two electric telescopic rods B 703 are in the shrinking state, the two centering clamping frames 702 are in the open state, which is convenient for placing and taking out the steel pipe 200; at the same time, the supporting base 100 can block the two control buttons B 7052, so that the worker cannot start the electric telescopic rod A 602, and it is ensured that the steel pipe 200 must be in the centering clamping state before the electric telescopic rod A 602 works.

[0028] In this paper, the following points need attention: 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the usual design.

[0029] 2. In the case of no conflict, the embodiments of the present disclosure and the features in the embodiments can be combined to obtain new embodiments.

[0030] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present disclosure, which should be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An adjustable water pressure tester for testing steel pipes (200); characterized in that, The utility model relates to a sealing device for steel pipe, which comprises the following parts: A supporting base (100) is provided with elastic anti-rotation mechanisms (300) at both ends; a pressure applying mechanism (400) is installed on the left elastic anti-rotation mechanism (300) and used to seal the left end of the steel pipe (200); a sealing mechanism (500) is installed on the right elastic anti-rotation mechanism (300) and used to seal the right end of the steel pipe (200); a multifunctional mechanism (600) is installed on the right end of the supporting base (100) and used to move the sealing mechanism (500) and detect the coaxiality of the steel pipe (200); a centering and clamping mechanism (700) is installed on the supporting base (100) and used to clamp the steel pipe (200).

2. The adjustable water press for steel pipes according to claim 1, characterized in that, The elastic anti-rotation mechanism (300) comprises an anti-rotation support (301), a V-shaped mounting bracket (302), and an elastic anti-rotation rod (303); the anti-rotation support (301) is fixedly installed on the supporting base (100); the V-shaped mounting bracket (302) is fixedly installed on the top of the anti-rotation support (301); and the elastic anti-rotation rod (303) is slidingly installed on the V-shaped mounting bracket (302) and the anti-rotation support (301), and the bottom end of the elastic anti-rotation rod (303) is in a semispherical structure.

3. The adjustable water press for steel pipe according to claim 2, wherein The elastic anti-rotation mechanism (300) further comprises a reset ring A (304) and a reset spring A (305); the reset ring A (304) is fixedly installed outside the elastic anti-rotation rod (303); and the reset spring A (305) is sleeved outside the elastic anti-rotation rod (303) and located between the V-shaped mounting bracket (302) and the reset ring A (304).

4. The adjustable water press for steel pipe according to claim 2, wherein The pressure applying mechanism (400) comprises an installation disc A (401), a circular pressure head (402), a rubber sealing ring A (403), and a high-pressure hose (404); the installation disc A (401) is rotatably installed on the left anti-rotation support (301), and an arc-shaped anti-rotation groove A (4011) is formed in the outer wall of the installation disc A (401), and the upper arc-shaped anti-rotation groove A (4011) is in contact with the bottom end of the left elastic anti-rotation rod (303); one circle of the circular pressure head (402) is fixedly installed on the right side of the installation disc A (401); one circle of the rubber sealing ring A (403) is installed on one circle of the circular pressure head (402); and one circle of the high-pressure hose (404) is fixedly installed inside the installation disc A (401) and one circle of the circular pressure head (402).

5. The adjustable water press for steel pipe according to claim 2, wherein The sealing mechanism (500) comprises: a mounting disc B (501), a circular guide rod (502) and a circular sealing head (503); the mounting disc B (501) is rotatably mounted on the right anti-rotation support (301), and an arc-shaped anti-rotation groove B (5011) is formed in the outer wall of the mounting disc B (501), and the upper arc-shaped anti-rotation groove B (5011) is in contact with the bottom end of the right elastic anti-rotation rod (303); the circular guide rod (502) is provided in a circle, and the circular guide rod (502) is slidably mounted on the mounting disc B (501); the circular sealing head (503) is provided in a circle, and the circular sealing head (503) is fixedly mounted on the left side of the circular guide rod (502), and each circular sealing head (503) is connected with two circular guide rods (502).

6. The adjustable water press for steel pipe according to claim 5, wherein The sealing mechanism (500) further comprises: a rubber sealing ring B (504), a reset ring B (505) and a reset spring B (506); the rubber sealing ring B (504) is provided in a circle, and the rubber sealing ring B (504) is mounted on the circular sealing head (503); the reset ring B (505) is provided in a circle, and the reset ring B (505) is fixedly mounted on the right end of the circular guide rod (502); the reset spring B (506) is provided in a circle, and the reset spring B (506) is sleeved on the outside of the circular guide rod (502), and the reset spring B (506) is located between the mounting disc B (501) and the reset ring B (505).

7. The adjustable water press for steel pipe according to claim 1, wherein The multifunctional mechanism (600) comprises: an L-shaped frame (601), an electric telescopic rod A (602), a limiting baffle A (603) and a limiting baffle B (604); the L-shaped frame (601) is slidably mounted on the supporting base (100); the electric telescopic rod A (602) is fixedly mounted on the L-shaped frame (601); the limiting baffle A (603) is fixedly mounted on the L-shaped frame (601), and the left side of the limiting baffle A (603) is in contact with the supporting base (100); the limiting baffle B (604) is fixedly mounted on the left end of the L-shaped frame (601).

8. The adjustable water press for steel pipe according to claim 7, characterized in that, The multifunctional mechanism (600) further comprises: a circular limiting tube (605), a reset spring C (606) and a control button (607); the circular limiting tube (605) is fixedly mounted on the right side of the limiting baffle B (604); the reset spring C (606) is sleeved on the outside of the circular limiting tube (605), and the reset spring C (606) is located between the supporting base (100) and the limiting baffle B (604); the control button (607) is fixedly mounted in the inside of the circular limiting tube (605); when the right side of the circular limiting tube (605) is in contact with the supporting base (100), the control button (607) is in a pressed state.

9. The adjustable water press for steel pipe according to claim 8, wherein The centering and clamping mechanism (700) comprises a circular guide shaft (701), a centering and clamping frame (702), an electric telescopic rod B (703) and a mounting frame (704); the four circular guide shafts (701) are slidingly installed on the support base (100); the two centering and clamping frames (702) are fixedly installed on the inner sides of the four circular guide shafts (701); the two electric telescopic rod B (703) are fixedly installed on the support base (100), and the output shafts of the two electric telescopic rod B (703) are fixedly connected with the two centering and clamping frames (702); and the mounting frame (704) is fixedly installed on the front centering and clamping frame (702).

10. The adjustable water press for steel pipe according to claim 9, wherein The centering and clamping mechanism (700) further comprises a control panel (705); the control panel (705) is fixedly installed on the mounting frame (704), and the control panel (705) is electrically connected with the electric telescopic rod A (602), the control button (607) and the two electric telescopic rod B (703); the top of the control panel (705) is provided with two control keys A (7051), and the two control keys A (7051) are used for controlling the two electric telescopic rod B (703); the top of the control panel (705) is provided with two control keys B (7052), and the two control keys B (7052) are used for controlling the electric telescopic rod A (602); the control panel (705) is provided with two buzzers (7053); when the output shaft of the electric telescopic rod A (602) is not fully extended, and the control button (607) is in the pressed state, the front buzzer (7053) works; when the output shaft of the electric telescopic rod A (602) is fully extended, and the control button (607) is in the pressed state, the rear buzzer (7053) works.

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