Suspended weight test method and suspended weight test equipment

Abstract

The present application discloses a hanging weight test method and a hanging weight test device, which relate to the field of oil and gas equipment. A hanging weight test method, comprising: clamping a hanging weight part by a clamping device; arranging the driving end of a hanging weight drive device relative to the hanging weight part or connecting it to the hanging weight part, marking the position of the driving end; applying a first preset driving force to the hanging weight part by the driving end, and observing the movement of the driving end. A hanging weight test device, applying the above-mentioned hanging weight test method. The present application can at least solve the problem of failure of the cava suspension capacity.

Description

Technical Field

[0001] The present application belongs to the technical field of oil and gas equipment, and specifically relates to a suspended weight test method and a suspended weight test device. Background Art

[0002] At present, in the production process of continuous tubing in oil and gas wells, the composite gate blowout preventer is one of the more critical equipment. Its main function is that when a blowout occurs, the two gates move in sequence, specifically as follows: Step 1: The slip semi-sealed gate is closed, and the rubber core of the slip gate is deformed by squeezing, thereby sealing the continuous tubing and the cavity around the well wall. At the same time, the slip is embedded in the surface of the tubing under the thrust of the gate to suspend the tubing, and sealing and suspension are achieved under the simultaneous action of the slip and the rubber core; Step 2: The shear full-sealed gate is closed, and the wellhead is sealed while cutting the tubing, thereby preventing the high-pressure medium in the oil and gas wells from being released to the outside.

[0003] However, when the suspension ability of the slip fails, the cut oil pipe will fall into the oil and gas wells, which will bring great difficulties to the subsequent well repair operations; when the seal fails, it will cause a blowout, affecting the safety of personnel and operations. Therefore, it is particularly important for the slip semi-sealed gate to achieve the suspension ability of the slip while ensuring the sealing. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a suspended weight test method and a suspended weight test device, which can at least solve the problem of failure of the cava suspension capacity.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] The present application embodiment provides a hanging weight test method, comprising:

[0007] Clamp the hanging weight by means of a clamping device;

[0008] The driving end of the suspended weight driving device is arranged opposite to the suspended weight member or connected to the suspended weight member, and the position of the driving end is marked;

[0009] A first preset driving force is applied to the suspended weight by the driving end, and the movement of the driving end is observed.

[0010] The embodiment of the present application also provides a suspended weight test device, which comprises: a suspended weight driving device, a clamping device and a suspended weight member;

[0011] The clamping device comprises a clamping seat and a clamping assembly, wherein the clamping seat has a housing cavity extending in a first direction, a side wall of the housing cavity is provided with a slideway extending in a second direction perpendicular to the first direction, the slideway is communicated with the housing cavity, the clamping assembly has a clamping end, the clamping end is movably arranged in the slideway, and the suspending weight is at least partially arranged in the housing cavity;

[0012] The suspended weight driving device has a driving end, which is movable along the first direction and connected to the suspended weight member.

[0013] In the embodiment of the present application, the hanging weight can be clamped by the clamping device, and the driving force can be applied to the hanging weight by the hanging weight driving device. During the hanging weight test, the hanging weight is clamped by the clamping end, and the driving force (such as pressure or tension) is gradually applied to the hanging weight by the driving end. When the driving force reaches the preset hanging weight value (i.e., the first preset driving force), the driving force is kept constant. At this time, it is observed whether the driving end moves, and different hanging weight capacities can be tested by adjusting different hanging weight values ​​to meet the test requirements. Based on the above settings, the embodiment of the present application can test the hanging capacity of the clamping device to ensure that the clamping device can realize the hanging capacity of the hanging weight under different working conditions, so as to prevent the subsequent well repairing operation from being difficult due to the failure of the hanging capacity of the clamping device. Therefore, by testing the hanging capacity of the clamping device, it can be ensured that the hanging capacity of the clamping device will not fail, and the smooth progress of the well repairing operation is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a first flow chart of the hanging weight test method disclosed in the embodiment of the present application;

[0015] Figure 2 A second flow chart of the hanging weight test method disclosed in the embodiment of the present application;

[0016] Figure 3 The third flow chart of the hanging weight test method disclosed in the embodiment of the present application;

[0017] Figure 4 It is a first structural schematic diagram of the suspended weight testing device disclosed in the embodiment of the present application;

[0018] Figure 5 A second structural schematic diagram of the suspended weight testing device disclosed in an embodiment of the present application;

[0019] Figure 6 It is a first cross-sectional schematic diagram of a suspended weight testing device disclosed in an embodiment of the present application;

[0020] Figure 7A second cross-sectional schematic diagram of a suspended weight testing device disclosed in an embodiment of the present application;

[0021] Figure 8 It is a cross-sectional schematic diagram of another suspended weight testing device disclosed in an embodiment of the present application;

[0022] Fig. 9 It is a structural schematic diagram of the clamping device disclosed in the embodiment of the present application;

[0023] Fig.10 It is a cross-sectional schematic diagram of the suspended weight driving device disclosed in the embodiment of the present application;

[0024] Fig.11 It is a schematic diagram of the structure of the suspension weight disclosed in the embodiment of the present application;

[0025] Fig.12 It is a cross-sectional schematic diagram of the suspended weight disclosed in the embodiment of the present application;

[0026] Fig.13 This is a schematic diagram of the structure of the base bracket disclosed in the embodiment of the present application;

[0027] Fig.14 This is a schematic diagram of the structure of the universal fixing seat disclosed in the embodiment of the present application.

[0028] Description of reference numerals:

[0029] 100-weight suspension drive device; 110-device body; 111-first interface; 112-second interface; 113-third slideway; 120-hydraulic drive rod; 121-first connecting structure; 122-connecting member; 130-third locking member;

[0030] 200-clamping device; 210-clamping seat; 211-accommodating cavity; 212-first slideway; 213-second slideway; 220-clamping assembly; 221-first telescopic member; 2211-third interface; 2212-fourth interface; 222-second telescopic member; 223-first slip; 224-second slip; 225-first locking member; 226-second locking member; 230-cover; 231-opening; 232-pressing port;

[0031] 300-suspended weight; 310-tube body; 320-first plug; 321-second connecting structure; 330-second plug; 340-liquid injection cavity;

[0032] 400-universal fixing seat; 410-avoidance hole; 420-first mounting hole;

[0033] 500-Hydraulic station;

[0034] 600-suppression station;

[0035] 700-base bracket; 710-first layer bracket; 720-second layer bracket; 730-support beam;

[0036] 810 - first pipeline; 820 - second pipeline; 830 - third pipeline; 840 - fourth pipeline; 850 - fifth pipeline. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0039] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0040] refer to Figures 1 to 14 The embodiment of the present application also discloses a hanging weight test method, which is applied to a hanging weight test device, and is at least used to test the hanging weight capacity of the hanging weight test device to ensure the normal operation of the hanging weight test device. The disclosed hanging weight test method includes:

[0041] Clamp the hanging weight 300 by the clamping device 200;

[0042] The driving end of the suspended weight driving device 100 is arranged opposite to the suspended weight member 300 or connected to the suspended weight member 300, and the position of the driving end is marked;

[0043] A first preset driving force is applied to the suspended weight 300 through the driving end, and the movement of the driving end is observed.

[0044] In the embodiment of the present application, the hanging weight 300 can be clamped by the clamping device 200, and the driving force can be applied to the hanging weight 300 by the hanging weight driving device 100. During the hanging weight test, the hanging weight 300 is clamped by the clamping end, and the driving force (such as pressure or tension) is gradually applied to the hanging weight 300 by the driving end. When the driving force reaches a preset hanging weight value (i.e., a first preset driving force), the driving force is kept constant. At this time, it is observed whether the driving end moves, and different hanging weight capacities can be tested by adjusting different hanging weight values ​​to meet the test requirements. Based on the above settings, the embodiment of the present application can test the suspension capacity of the clamping device 200 to ensure that the clamping device 200 can achieve the suspension capacity of the suspended weight 300 under different working conditions, so as to prevent the subsequent well repair operation from being difficult due to the failure of the suspension capacity of the clamping device 200. Therefore, by testing the suspension capacity of the clamping device 200, it can be ensured that the suspension capacity of the clamping device 200 will not fail, thereby ensuring the smooth progress of the well repair operation.

[0045] In some embodiments, when the driving end and the suspension weight 300 are arranged relative to each other, the driving end and the suspension weight 300 are spaced apart from each other. In order to prevent the driving end and the suspension weight 300 from moving out of sync and affecting the test results, it is necessary to first move the suspension weight 300 and make the end of the suspension weight 300 contact with the driving end, so that the driving end and the suspension weight 300 move synchronously.

[0046] Among them, clamping the hanging weight 300 by the clamping device 200 includes: clamping the hanging weight 300 by the clamping device 200 with a first clamping force; applying a first driving force toward the driving end to the hanging weight 300 so that the end of the hanging weight 300 contacts the driving end; and removing the first driving force.

[0047] Based on the above operation, the end of the suspending weight 300 can be made to fit tightly with the driving part. In this way, when the driving end applies a force to the suspending weight 300, under normal circumstances, the suspending weight 300 is clamped by the clamping device 200 and remains stationary. At this time, the driving end will not move, indicating that the clamping device 200 has a good clamping effect and thus has a better suspending capacity; when the suspending weight 300 under the clamping effect cannot withstand the first driving force applied by the driving end, the driving end and the suspending weight 300 will move synchronously, indicating that the clamping device 200 does not have a good clamping effect and thus does not have a better suspending capacity and cannot meet the suspending requirements.

[0048] It should be noted here that when the clamping device 200 clamps the hanging weight 300 with the first clamping force, it can just hold the hanging weight 300, and when the hanging weight 300 is subjected to an axial force, it can also move relative to the clamping device 200 to facilitate adjusting the position of the hanging weight 300.

[0049] In addition, after the end of the hanging weight 300 is tightly fitted with the driving end, the first driving force needs to be removed, that is, the pressure is released to zero to avoid the first driving force interfering with the hanging weight test process.

[0050] Furthermore, the hanging weight 300 is clamped by the clamping device 200 with a second clamping force, and the second clamping force is greater than the first clamping force; a driving force is applied to the hanging weight 300 through the driving end, and the driving force is gradually increased; when the driving force reaches the first preset driving force, the movement of the driving end is observed.

[0051] Based on the above steps, the suspending weight 300 is subjected to the driving force and the clamping force at the same time. When the driving force reaches the suspending weight value specified by the suspending weight 300, the driving force remains unchanged. At this time, if the driving end does not move, it indicates that the clamping device 200 has a better suspending weight capacity; on the contrary, if the driving end moves, it indicates that the clamping device 200 does not have a better suspending weight capacity.

[0052] Furthermore, when the driving end does not move, the suspension weight driving device 100 is locked to prevent it from moving unexpectedly and affecting the test results. Then, a second driving force is applied to the suspension weight 300 in the direction of the driving end to offset a part of the driving force of the driving end on the suspension weight 300; then the lock is released, and the driving force applied by the driving end to the suspension weight 300 is continuously increased; when the driving force reaches the second preset driving force, the movement of the driving end is observed.

[0053] In some embodiments, the clamping device 200 has a housing cavity 211, and the suspending weight 300 is at least partially disposed in the housing cavity 211. At this time, the driving force can be applied to the suspending weight 300 by injecting a high-pressure medium into the housing cavity 211. Optionally, high-pressure air or high-pressure water can be injected into the housing cavity 211 through a pressurizing station to form a first driving force or a second driving force on the suspending weight 300.

[0054] At the same time, after injecting high-pressure medium into the accommodating cavity 211, the pressure drop value in the accommodating cavity 211 can also be monitored. By monitoring the pressure drop value, it can be determined whether the clamping device 200 has leakage, and then the sealing performance of the clamping device 200 can be determined.

[0055] In other embodiments, different from the above-mentioned method in which the driving end and the hanging weight 300 are arranged relative to each other so that the driving end applies a squeezing force to the hanging weight 300, the driving end and the hanging weight 300 can also be directly connected, and a pulling force is applied to the hanging weight 300 through the driving end. This method can also realize the hanging weight test process.

[0056] In the embodiment of the present application, the hanging weight test method may further include: injecting an incompressible medium into the hanging weight 300. It should be noted here that this step is performed before the step of clamping the hanging weight 300 by the clamping device 200, so as to improve the bearing capacity of the hanging weight 300 and ensure that the hanging weight 300 is not easily deformed when it is subsequently subjected to clamping and squeezing, thereby ensuring the authenticity and accuracy of the test results. Optionally, the incompressible medium may be water or the like.

[0057] refer to Figures 4 to 14 The embodiment of the present application discloses a hanging weight test device for testing the hanging capacity. Optionally, the hanging weight test device can be used to test the ability of the slip semi-sealed valve plate of the composite gate blowout preventer to hang the oil pipe to ensure that the hanging capacity of the slip semi-sealed valve plate will not fail. In the embodiment of the present application, the clamping device 200 can be a slip semi-sealed valve plate and the hanging weight 300 can be an oil pipe. Of course, other methods can also be used, and the embodiment of the present application does not specifically limit this.

[0058] The disclosed hanging weight test device includes a hanging weight driving device 100, a clamping device 200 and a hanging weight 300. The clamping device 200 has a clamping function, which is used to clamp the hanging weight 300 so that the hanging weight 300 can bear the load without moving. In some embodiments, the clamping device 200 includes a clamping seat 210 and a clamping assembly 220, the clamping seat 210 has a receiving cavity 211 extending along a first direction, the side wall of the receiving cavity 211 is provided with a slideway extending along a second direction, and the slideway is connected to the receiving cavity 211, the clamping assembly 220 has a clamping end, the clamping end is movably arranged in the slideway, and the hanging weight 300 is at least partially arranged in the receiving cavity 211.

[0059] When the suspended weight test equipment is in normal use, the first direction can be a vertical direction, and the second direction is perpendicular to the first direction, that is, the second direction is a horizontal direction. At this time, the slide extends in the horizontal direction, and the clamping end can move along the slide in the horizontal direction.

[0060] When a hanging weight test is required, all or part (i.e., at least part) of the hanging weight 300 is inserted into the accommodating cavity 211, and then the clamping end moves along the slide toward the accommodating cavity 211 until the clamping end is pressed against the side wall of the hanging weight 300 to clamp and fix the hanging weight 300, thereby effectively preventing the hanging weight 300 from moving along the first direction.

[0061] Optionally, a slideway can be provided on the side wall of the accommodating cavity 211, and accordingly, the clamping assembly 220 has a clamping end. At this time, when the clamping end squeezes the suspending weight 300, the side wall of the suspending weight 300 is pressed against the side wall of the accommodating cavity 211, so that the suspending weight 300 can be clamped through the joint action of the clamping end and the side wall of the accommodating cavity 211 to prevent it from moving at will when bearing load, thereby realizing the suspension test.

[0062] Of course, the side wall of the accommodating cavity 211 can also be provided with multiple slides, specifically two slides. In this case, the two slides are arranged opposite to each other. Accordingly, the clamping assembly 220 has two clamping ends. In this case, the two clamping ends are respectively located on the opposite sides of the suspension weight 300, so that the suspension weight 300 can be squeezed from the opposite sides. Under the action of the two clamping ends, the suspension weight 300 is clamped to prevent it from moving at will when bearing load, thereby realizing the suspension test.

[0063] In addition, the side wall of the accommodating cavity 211 may be provided with more slideways, such as three, four, five, etc. Correspondingly, the clamping assembly 220 has clamping ends corresponding to the more slideways, and the multiple clamping ends are distributed in various directions on the side of the suspending weight 300, so that the suspending weight 300 can be squeezed from multiple directions to achieve the clamping of the suspending weight 300, thereby improving the load-bearing capacity of the suspending weight 300.

[0064] Optionally, the clamping end may be a slip, through which the side wall of the suspending weight 300 can be tightly embraced, thereby increasing the contact area with the suspending weight 300 and further improving the clamping effect.

[0065] In order to apply the force required for the test to the hanging weight 300, the hanging weight driving device 100 has a driving end, which is movable along the first direction and connected to the hanging weight 300. Based on this, when a hanging weight test is required, the hanging weight 300 is first clamped and fixed by the clamping device 200, and then the driving end is used to apply a driving force to the hanging weight 300, and the driving force is gradually increased to reach a preset hanging weight value, and whether the driving end moves is observed, so as to realize the hanging weight test process.

[0066] In the embodiment of the present application, the hanging weight 300 can be clamped by the clamping device 200, and the driving force can be applied to the hanging weight 300 by the hanging weight driving device 100. During the hanging weight test, the hanging weight 300 is clamped by the clamping end, and the driving force (such as pressure or tension) is gradually applied to the hanging weight 300 by the driving end. When the driving force reaches the preset hanging weight value, the driving force is kept constant. At this time, it is observed whether the driving end moves, and different hanging weight capacities are tested by adjusting different hanging weight values ​​to meet the test requirements. Based on the above settings, the hanging weight test equipment in the embodiment of the present application can test the hanging capacity of the clamping device 200 to ensure that the clamping device 200 can realize the hanging capacity of the hanging weight 300 under different working conditions, so as to prevent the subsequent well repair operation from being difficult due to the failure of the hanging capacity of the clamping device 200. Therefore, the hanging capacity of the clamping device 200 can be tested by the hanging weight test equipment to ensure that the hanging capacity of the clamping device 200 will not fail, thereby ensuring the smooth progress of the well repair operation.

[0067] In some embodiments, the clamping assembly 220 may include a first telescopic member 221, a second telescopic member 222, a first cava 223, and a second cava 224, wherein the first telescopic member 221 and the second telescopic member 222 are respectively connected to two opposite sides of the clamping seat 210 along the second direction, and the telescopic direction of the first telescopic member 221 is the same as the telescopic direction of the second telescopic member 222, and the first cava 223 is connected to the first telescopic member 221, and the second cava 224 is connected to the second telescopic member 222. Based on this, the first telescopic member 221 can drive the first cava 223 to telescopically move, so that the first cava 223 moves toward the hanging weight member 300 and presses against the side wall of the hanging weight member 300. The second telescopic member 222 can drive the second cava 224 to telescopically move, so that the second cava 224 moves toward the hanging weight member 300 and presses against the side wall of the hanging weight member 300. In this way, the first cava 223 and the second cava 224 respectively press against the opposite sides of the hanging weight member 300 to achieve the clamping and fixation of the hanging weight member 300 to prevent the hanging weight member 300 from moving at will.

[0068] Optionally, the first telescopic member 221 may be a hydraulic telescopic member, an electric telescopic member, a pneumatic telescopic member, etc. Similarly, the second telescopic member 222 may be a hydraulic telescopic member, an electric telescopic member, a pneumatic telescopic member, etc. Of course, the first telescopic member 221 and the second telescopic member 222 may also be in other forms, which are not specifically limited in the present embodiment of the application.

[0069] When the first telescopic member 221 and the second telescopic member 222 are both hydraulic telescopic members, they are respectively provided with a third interface 2211 and a fourth interface 2212, wherein the third interface 2211 is connected to the hydraulic station 500 via the fourth pipeline 840, and the fourth interface 2212 is connected to the hydraulic station 500 via the fifth pipeline 850. In this way, the hydraulic station 500 can supply hydraulic oil to the third interface 2211 and the fourth interface 2212 via the fourth pipeline 840 and the fifth pipeline 850, respectively, so as to realize the telescopic movement of the first telescopic member 221 and / or the telescopic movement of the second telescopic member 222, and further realize the first slip 223 and the second slip 224 to hold the suspending weight 300 from both sides, or to detach from the suspending weight 300 from both sides.

[0070] In addition, the first slip 223 and the second slip 224 may also have concave surfaces, and the concave surfaces are used to hold the suspending weight 300 from opposite sides to increase the contact area and improve the holding effect. In a more specific embodiment, the suspending weight 300 is an oil pipe, which is a round pipe structure. In this case, the first slip 223 and the second slip 224 may have arc surfaces to adapt to the outer wall of the oil pipe and improve the holding effect.

[0071] Correspondingly, the side wall of the clamping seat 210 is provided with a first slideway 212 and a second slideway 213, and the first slideway 212 and the second slideway 213 are respectively located on opposite sides of the accommodating cavity 211, and the first slip 223 is slidably connected to the first slideway 212, and the second slip 224 is slidably connected to the second slideway 213. Based on this, the movement of the first slip 223 can be limited and guided by the first slideway 212 to ensure that the first slip 223 can move in a preset direction without deviation, thereby ensuring that the first slip 223 can better clamp the hanging weight 300, and similarly, the second slideway 213 can limit and guide the movement of the second slip 224 to ensure that the second slip 224 can move in a preset direction without deviation, thereby ensuring that the second slip 224 can better clamp the hanging weight 300.

[0072] Furthermore, the first slideway 212 and the second slideway 213 are both in a sealed state to prevent the accommodating cavity 211 from communicating with the outside, thereby ensuring the sealing of the accommodating cavity 211 .

[0073] In order to prevent the first cava 223 and the second cava 224 from accidentally becoming unstuck when they are in a clamped state, in an embodiment of the present application, the clamping assembly 220 may further include a first locking member 225 and a second locking member 226, wherein the first locking member 225 is threadedly connected to the first slide 212, and one end of the first locking member 225 located in the first slide 212 is contactable with the first cava 223, and the second locking member 226 is threadedly connected to the second slide 213, and one end of the second locking member 226 located in the second slide 213 is contactable with the second cava 224.

[0074] Optionally, an end of the first slide 212 away from the accommodating chamber 211 is provided with an internal thread, and the first locking member 225 is provided with an external thread, so that the first locking member 225 is connected to the first slide 212 by a threaded connection, so that the first locking member 225 can be moved toward or away from the first slip 223 by screwing, and when it moves toward the first slip 223 and abuts against the first slip 223, it can prevent the first slip 223 from moving away from the hanging weight. The first cava 223 can be locked by moving in the direction of the hanging weight part 300 to ensure that the first cava 223 will not accidentally detach from the hanging weight part 300 during the hanging weight test; when the first locking member 225 moves away from the first cava 223 and detaches from the first cava 223, the locking effect on the first cava 223 can be released to prevent the first locking member 225 from interfering with the movement of the first cava 223 when the first cava 223 detaches from the hanging weight part 300.

[0075] Further, when the first telescopic member 221 is a hydraulic cylinder, the piston rod of the hydraulic cylinder is connected to the first slip 223, and the first locking member 225 can abut against or disengage from the piston of the hydraulic cylinder to lock or unlock the piston.

[0076] Similarly, an end of the second slide 213 away from the accommodating chamber 211 is provided with an internal thread, and the second locking member 226 is provided with an external thread, so that the second locking member 226 is connected to the second slide 213 by a threaded connection. In this way, the second locking member 226 can be moved toward the second slip 224 or away from the second slip 224 by screwing. When moving toward the second slip 224 and abutting against the second slip 224, the second slip 224 can be prevented from moving away from the suspension weight. 300, thereby realizing the locking effect on the second cava 224, so as to ensure that the second cava 224 will not accidentally detach from the hanging weight part 300 during the hanging weight test; when the second locking member 226 moves away from the second cava 224 and detaches from the second cava 224, the locking effect on the second cava 224 can be released, so as to prevent the second locking member 226 from interfering with the movement of the second cava 224 when the second cava 224 detaches from the hanging weight part 300.

[0077] Furthermore, when the second telescopic member 222 is a hydraulic cylinder, the piston rod of the hydraulic cylinder is connected to the second slip 224, and the second locking member 226 can abut against or disengage from the piston of the hydraulic cylinder to lock or unlock the piston.

[0078] In order to install the suspended weight drive component, the suspended weight testing equipment can also include a universal fixing seat 400, which is connected to the suspended weight drive device 100. In this way, the suspended weight drive device 100 can be installed on the clamping seat 210 through the universal fixing seat 400 to ensure that the driving end can generate a driving force on the suspended weight component 300 arranged in the accommodating cavity 211.

[0079] In some embodiments, the universal fixing seat 400 is provided with an avoidance hole 410 and a plurality of first mounting holes 420, the avoidance hole 410 is arranged opposite to the accommodating cavity 211, and correspondingly, the clamping seat 210 is provided with a plurality of second mounting holes (not shown in the figure), the plurality of second mounting holes are respectively coaxially arranged with at least some of the plurality of first mounting holes 420, and fasteners (not shown in the figure) are arranged in the coaxially arranged first mounting holes 420 and second mounting holes. Based on this, by providing the avoidance hole 410, the driving end of the suspended weight driving device 100 can pass through the avoidance hole 410 and connect with the suspended weight 300 arranged in the accommodating cavity 211, and generate a driving force on the suspended weight 300, so as to facilitate the suspended weight test. The plurality of second mounting holes are aligned with at least a portion of the first mounting holes 420 , and the universal fixing seat 400 is fastened to the clamping seat 210 by inserting fasteners. Thus, during the hanging weight test, the hanging weight driving device 100 can withstand the reaction force from the hanging weight member 300 through the universal fixing seat 400 .

[0080] In addition, since the number and arrangement of the multiple second mounting holes of the clamping base 210 of different specifications are different, in order to adapt to the installation of clamping bases 210 of various specifications, the number of the first mounting holes 420 is greater than the second mounting holes, and the first mounting holes 420 are arranged in various forms, such as annular arrangements of different radii, rectangular arrangements of different lengths and widths, hexagonal arrangements of different side lengths, etc. Therefore, according to the arrangement of the multiple second mounting holes of the clamping bases 210 of various specifications, multiple first mounting holes 420 that are adapted can be selected and arranged accordingly, and then, the fixed installation of the clamping bases 210 of various specifications can be realized to improve the adaptability of equipment installation.

[0081] It should be noted here that when the clamping device 200 is a clamping component included in the blowout preventer, the universal fixing seat 400 can adapt to blowout preventers of different specifications to achieve the connection between the suspended weight drive device 100 and blowout preventers of different specifications, thereby improving the applicability of equipment connection.

[0082] In some embodiments, the suspension weight driving device 100 may include a device body 110 and a hydraulic driving rod 120, wherein the hydraulic driving rod 120 is movably disposed on the device body 110, so that the hydraulic driving rod 120 can move relative to the device body 110, and the hydraulic driving rod 120 is connected to the suspension weight 300, so as to apply a driving force to the suspension weight 300 through the driving end of the hydraulic driving rod 120 to perform a suspension weight test. Among them, the hydraulic driving rod 120 and the suspension weight 300 may be in an abutting relationship, in which case the hydraulic driving rod 120 can apply a squeezing force to the suspension weight 300 but cannot apply a pulling force, so as to achieve a unidirectional test; of course, the hydraulic driving rod 120 and the suspension weight 300 may also be connected, in which case the hydraulic driving rod 120 can apply a squeezing force or a pulling force to the suspension weight 300, so as to achieve a bidirectional test.

[0083] Optionally, the suspended weight driving device 100 can be a hydraulic driving device. In this case, the device body 110 is provided with a first interface 111 and a second interface 112, wherein the first interface 111 can be a starting clamping interface, and the second interface 112 can be a releasing clamping interface, and hydraulic oil is transported to the hydraulic driving device through the first interface 111 and the second interface 112.

[0084] Furthermore, the hanging weight test equipment may also include a hydraulic station 500, a first pipeline 810 and a second pipeline 820, wherein one end of the first pipeline 810 is connected to the hydraulic station 500, and the other end is connected to the first interface 111, and one end of the second pipeline 820 is connected to the hydraulic station 500, and the other end is connected to the second interface 112. Based on this, when it is necessary to apply a driving force to the hanging weight 300 to perform a hanging weight test, the hydraulic station 500 delivers hydraulic oil to the first interface 111 through the first pipeline 810, and under the action of the hydraulic oil, the hydraulic drive rod 120 squeezes the hanging weight 300, and at the same time, the hanging weight 300 is clamped by the clamping device 200, thereby, by adjusting the squeezing effect of the hydraulic drive rod 120 on the hanging weight 300, the squeezing force reaches the preset hanging weight value, and observe whether the hanging weight 300 and the hydraulic drive rod 120 move, so as to determine whether the hanging weight test requirements are met. On the contrary, the hydraulic station 500 can also transport hydraulic oil to the second interface 112 through the second pipeline 820. Under the action of the hydraulic oil, the hydraulic drive rod 120 applies a pulling force to the suspended weight 300, and the suspended weight 300 is clamped by the clamping device 200. Therefore, the pulling effect of the hydraulic drive rod 120 on the suspended weight 300 can be adjusted to make the pulling force reach the preset suspended weight value, and observe whether the suspended weight 300 and the hydraulic drive rod 120 move, so as to judge whether the suspended weight test requirements are met.

[0085] It should be noted here that the flow and pressure of the hydraulic oil can be controlled by setting valve bodies in the first pipeline 810 and the second pipeline 820 respectively, thereby controlling the moving speed and displacement of the hydraulic drive rod 120, thereby achieving high-precision control.

[0086] To prevent the hydraulic drive rod 120 from moving randomly during the hanging weight test, the hanging weight drive device 100 may further include a third locking member 130, by which the hydraulic drive rod 120 may be locked to ensure that the hydraulic drive rod 120 does not move randomly during the hanging weight test.

[0087] Furthermore, the device body 110 is provided with a third slide 113 extending along the first direction, and the hydraulic drive rod 120 is slidably connected to the third slide 113, so that the hydraulic drive rod 120 can move in the third slide 113 along the first direction to apply the driving force required for the test to the suspended weight 300.

[0088] In some embodiments, the third locking member 130 is threadedly connected to the third slideway 113, and one end of the third locking member 130 located in the third slideway 113 can contact the hydraulic drive rod 120. Optionally, one end of the third slideway 113 away from the suspending weight 300 is provided with an internal thread, and the third locking member 130 is provided with an external thread, so that the third locking member 130 is connected to the third slideway 113 by threaded connection, so that the third locking member 130 can be moved toward or away from the hydraulic drive rod 120 by screwing. When the third locking member 130 moves toward the hydraulic drive rod 120 and abuts against the hydraulic drive rod 120, the hydraulic drive rod 120 can be prevented from moving at will, thereby achieving the locking effect on the hydraulic drive rod 120; when the third locking member 130 moves away from the hydraulic drive rod 120 and is separated from the hydraulic drive rod 120, the locking effect on the hydraulic drive rod 120 can be released to prevent the third locking member 130 from interfering with the movement of the driving member.

[0089] Optionally, the suspended weight driving device 100 may be a hydraulic driving device. In this case, the third locking member 130 may abut against or disengage from a piston of the hydraulic driving device to lock or unlock the piston.

[0090] When the driving end of the suspending weight driving device 100 is in abutment with the suspending weight piece 300, in order to make the suspending weight piece 300 fit tightly with the driving end of the suspending weight driving device 100, in the embodiment of the present application, a high-pressure medium can be used to impact the end of the suspending weight piece 300 that is away from the driving end, so that the suspending weight piece 300 can move toward the driving end and fit tightly to the driving end, thereby effectively preventing the presence of a gap between the driving end and the suspending weight piece 300 in the initial state and affecting the suspending weight test results or accuracy.

[0091] Based on the above situation, in some embodiments, the clamping device 200 may further include a cover 230, which is connected to the end of the clamping seat 210 away from the suspended weight driving device 100, wherein the cover 230 is provided with an opening 231 and a pressure port 232, the opening 231 is communicated with the accommodating cavity 211, and the pressure port 232 is connected to the pressure station 600 through the third pipeline 830. Based on this, the pressure station 600 transports high-pressure medium to the pressure port 232 through the third pipeline 830, and the high-pressure medium enters the inner cavity of the cover 230 through the pressure port 232, and produces an impact on the suspended weight 300, so that the suspended weight 300 can be moved toward the driving end, and then the suspended weight 300 is closely fitted with the driving end to prevent the gap between the two from affecting the test results or test accuracy.

[0092] Optionally, the pressure-pressing station 600 may be a high-pressure liquid pressure-pressing station or a high-pressure gas pressure-pressing station, and the specific one may be selected according to actual working conditions.

[0093] Furthermore, at least a portion of the suspending weight 300 extends into the inner cavity of the housing 230 through the opening 231, and a preset distance is formed between the end surface of the suspending weight 300 and the bottom surface of the housing 230 facing away from the opening 231. Based on this, the high-pressure medium entering the housing 230 can have an impact on the end surface of the suspending weight 300, so as to push the suspending weight 300 to move and fit closely to the driving end, so as to ensure the authenticity and accuracy of the test results.

[0094] Taking into account that the suspended weight 300 is subjected to the clamping effect of the clamping device 200 and the squeezing effect of the suspended weight driving device 100, in order to prevent the suspended weight 300 from being deformed and affecting the test results or test accuracy, the suspended weight 300 may include a tube body 310, a first plug 320 and a second plug 330, wherein the first plug 320 is arranged at the first end of the tube body 310, the second plug 330 is arranged at the second end of the tube body 310, and the first plug 320, the second plug 330 and the inner wall of the tube body 310 together form a liquid injection cavity 340.

[0095] Based on the above settings, an incompressible medium, such as water, can be injected into the liquid injection cavity 340, so that the side wall of the tube body 310 can be supported by the incompressible medium, thereby ensuring that the suspended weight 300 is not easily deformed when clamped and squeezed, thereby ensuring the authenticity and accuracy of the test results.

[0096] Optionally, the first plug 320 and the second plug 330 may be installed to the first end and the second end of the tube body 310 by threaded connection, so as to facilitate liquid injection or liquid discharge.

[0097] In other embodiments, the driving end of the suspension weight driving device 100 is connected to the suspension weight 300. In this case, the end of the hydraulic driving rod 120 adjacent to the suspension weight 300 is provided with a first connecting structure 121, and correspondingly, the first plug 320 is provided with a second connecting structure 321, and the second connecting structure 321 is connected to the first connecting structure 121 through a connecting member 122. In this way, the suspension weight 300 and the hydraulic driving rod 120 can be moved synchronously to avoid the suspension weight 300 and the hydraulic driving rod 120 being separated to form a certain gap and affect the test results or test accuracy.

[0098] Optionally, the first connecting structure 121 may be a lifting ring having a first through hole, and the first plug 320 is provided with a connecting ear, and the connecting ear is provided with a second through hole, and the connecting member 122 may be a pin, a pin shaft, etc. When the lifting ring and the connecting ear are installed, the first through hole is aligned with the second through hole, and the connecting member 122 is inserted into the first through hole and the second through hole to achieve connection between the hydraulic drive rod 120 and the suspending weight 300, so as to facilitate synchronous movement of the hydraulic drive rod 120 and the suspending weight 300.

[0099] In order to improve the stability of the suspended weight test equipment, the suspended weight test equipment may further include a base bracket 700, through which the base bracket 700 may provide an installation basis for the clamping device 200, etc., so as to achieve stable installation of the clamping device 200, thereby ensuring the stability of the entire suspended weight test equipment during the test, and avoiding shaking that affects the test process.

[0100] In some embodiments, the base support 700 may include a first-layer support 710, a second-layer support 720, and a plurality of support beams 730, wherein the plurality of support beams 730 are all fixedly connected to the first-layer support 710 and are all extended along the first direction, the second-layer support 720 is spaced apart from the first-layer support 710, and is respectively fixedly connected to the plurality of support beams 730, and the clamping device 200 is disposed on the second-layer support 720. During application, the first-layer support 710 may be placed on a plane, such as a flat ground, to ensure the stability of the base support 700, the second-layer support 720 may be supported and fixed by the plurality of support beams 730, the stability of the second-layer support 720 may be improved, and the clamping device 200 may be installed and fixed by the second-layer support 720 to ensure the stability of the clamping device 200.

[0101] Based on the above settings, by setting up a base bracket 700, the clamping device 200 can be suspended on the base bracket 700 by its own gravity, and can effectively alleviate the shaking of the clamping assembly 220 during pressure, thereby ensuring the stability of the hanging weight test equipment during the hanging weight test.

[0102] Of course, the clamping device 200 may also be fixed by a bracket of other structural forms, or the clamping device 200 may be placed naturally on the ground. The fixing form of the clamping device 200 is not specifically limited in the embodiment of the present application.

[0103] In the embodiment of the present application, when the hanging weight driving device 100 applies a squeezing force to the hanging weight member 300, the specific steps of the hanging weight test are as follows:

[0104] 1) The first telescopic member 221 and the second telescopic member 222 are respectively pressed by the hydraulic station 500, and the first telescopic member 221 and the second telescopic member 222 respectively drive the first slip 223 and the second slip 224 to move toward the suspension weight 300 placed in the accommodating cavity 211, and clamp the suspension weight 300 with a small clamping force, and mark the driving end of the suspension weight driving device 100 (or, when the suspension weight driving device 100 is a hydraulic driving device, mark the position of the piston). In this case, the clamping effect on the suspension weight 300 can be guaranteed, and the suspension weight 300 can be moved after bearing the load to adjust the position of the suspension weight 300.

[0105] 2) High-pressure medium is injected into the housing 230 and the accommodating cavity 211 through the pressure station 600, so as to apply a pushing force to the suspending weight 300 through the high-pressure medium, so that the suspending weight 300 can move toward the suspending weight driving device 100, and then the end of the suspending weight 300 can fit tightly with the driving part, so as to prevent the gap between the suspending weight 300 and the driving part from affecting the suspending weight test result or the suspending weight test accuracy. After the end of the suspending weight 300 fits tightly with the driving part, stop the pressure, that is, release the pressure in the housing 230 and the accommodating cavity 211 to zero.

[0106] 3) The hydraulic control force of the first telescopic member 221 and the second telescopic member 222 is increased by the hydraulic station 500 to increase the clamping force of the first slip 223 and the second slip 224 on the hanging weight 300, thereby ensuring that the first slip 223 and the second slip 224 on both sides can completely clamp the hanging weight 300.

[0107] 4) Pressurize the suspension weight drive device 100 through the hydraulic station 500 to apply a squeezing force to the suspension weight member 300 through the hydraulic drive rod 120 of the suspension weight drive device 100, and gradually increase the hydraulic control force so that the squeezing force reaches the preset suspension weight value, and then keep the squeezing force unchanged to observe whether the driving end moves.

[0108] 5) When the driving end does not move, the hydraulic drive rod 120 is squeezed by the third locking member 130 so that the third locking member 130 and the hydraulic drive rod 120 are mechanically locked, thereby preventing the hydraulic drive rod 120 from moving arbitrarily and detaching from the suspending weight 300. It should be noted here that when the pressure station 600 presses the housing 230 and the accommodating cavity 211 to a preset pressure, the high-pressure medium will generate a thrust on the suspending weight 300, which will offset a part of the squeezing force of the suspending weight driving device 100. In this way, the squeezing force of the suspending weight driving device 100 can be further increased to achieve a larger suspending weight load.

[0109] 6) After the pressure is applied by the pressure station 600, the pressure is maintained for a preset time, and the driving end is observed to see if it moves. If it does not move, it indicates that the hanging weight test equipment can meet the hanging weight requirement. At the same time, the pressure drop value in the accommodating cavity 211 can also be monitored. If the pressure drop value does not decrease, it indicates that the cover 230 and the accommodating cavity 211 will not leak and have good sealing. Therefore, both the hanging weight requirement and good sealing can be ensured.

[0110] In the embodiment of the present application, when the suspending weight driving device 100 applies a pulling force to the suspending weight member 300, the specific steps of the suspending weight test are as follows:

[0111] 1) The first telescopic member 221 and the second telescopic member 222 are respectively pressed by the hydraulic station 500, and the first telescopic member 221 and the second telescopic member 222 respectively drive the first slip 223 and the second slip 224 to move toward the suspending weight 300, and clamp the suspending weight 300 with a small clamping force, and mark the driving end of the suspending weight driving device 100 (or, when the suspending weight driving device 100 is a hydraulic driving device, mark the position of the piston). In this case, the clamping effect on the suspending weight 300 can be ensured, and the suspending weight 300 can be moved after bearing the load to adjust the position of the suspending weight 300.

[0112] 2) The first connection structure 121 and the second connection structure 321 are connected via the connection member 122 to achieve the connection between the hydraulic drive rod 120 and the suspension weight 300, so that the two can move synchronously.

[0113] 3) The hydraulic control force of the first telescopic member 221 and the second telescopic member 222 is increased by the hydraulic station 500 to increase the clamping force of the first slip 223 and the second slip 224 on the hanging weight 300, thereby ensuring that the first slip 223 and the second slip 224 on both sides can completely clamp the hanging weight 300.

[0114] 4) The suspension weight driving device 100 is pressed by the hydraulic station 500 to apply a pulling force to the suspension weight 300 through the hydraulic driving rod 120 of the suspension weight driving device 100, and the hydraulic control force is gradually increased to make the pulling force reach the preset suspension weight value, and then the pulling force is kept unchanged to observe whether the driving end moves.

[0115] 5) When there is no movement at the driving end, the hydraulic drive rod 120 is squeezed by the third locking member 130. At this time, the squeezing force of the third locking member 130 on the hydraulic drive rod 120 is in the direction away from the suspension weight 300, so that the third locking member 130 and the hydraulic drive rod 120 are mechanically locked, thereby preventing the hydraulic drive rod 120 from moving at will.

[0116] 6) After the pressure is applied by the pressure station 600, the pressure is maintained for a preset time, and the driving end is observed to see if it moves. If it does not move, it indicates that the hanging weight test equipment can meet the hanging weight requirement. At the same time, the pressure drop value in the accommodating cavity 211 can also be detected. If the pressure drop value does not decrease, it indicates that the cover 230 and the accommodating cavity 211 will not leak and have good sealing. Therefore, both the hanging weight requirement and good sealing can be ensured.

[0117] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A hanging weight test method, characterized in that: The hanging weight test method comprises: Clamping the hanging weight (300) by means of the clamping device (200); The driving end of the suspended weight driving device (100) is arranged opposite to the suspended weight member (300) or connected to the suspended weight member (300), and the position of the driving end is marked; Applying a first preset driving force to the suspended weight (300) via the driving end, and observing the movement of the driving end; When the driving end and the suspending weight (300) are arranged relative to each other, the driving end and the suspending weight (300) are spaced apart from each other; The method of clamping the hanging weight (300) by means of the clamping device (200) comprises: The clamping device (200) clamps the suspended weight (300) with a first clamping force; Applying a first driving force towards the driving end to the suspending weight (300), so that the end of the suspending weight (300) is in contact with the driving end; The first driving force is removed.

2. The hanging weight test method according to claim 1, characterized in that: The clamping device (200) clamps the suspended weight (300) with a second clamping force greater than the first clamping force; Applying a driving force to the suspended weight (300) through the driving end, and gradually increasing the driving force; When the driving force reaches the first preset driving force, the movement of the driving end is observed.

3. The hanging weight test method according to claim 2, characterized in that: When the driving end does not move, locking the suspended weight driving device (100); Applying a second driving force towards the driving end to the suspended weight (300); Unlocking and continuing to increase the driving force applied by the driving end to the hanging weight (300); When the driving force increases to a second preset driving force, the movement of the driving end is observed.

4. The hanging weight test method according to claim 1 or 3, characterized in that: The clamping device (200) has a containing cavity (211), and the hanging weight (300) is at least partially arranged in the containing cavity (211); The suspended weight test method further comprises: injecting a high-pressure medium into the accommodating cavity (211), and applying a first driving force or a second driving force to the suspended weight component (300) through the high-pressure medium.

5. The hanging weight test method according to claim 1, characterized in that: The clamping device (200) has a containing cavity (211), and the hanging weight (300) is at least partially arranged in the containing cavity (211); The hanging weight test method further comprises: injecting a high-pressure medium into the containing cavity (211); The pressure drop value in the accommodating cavity (211) is monitored to determine the sealing performance of the clamping device (200).

6. The hanging weight test method according to claim 1, characterized in that: Before clamping the hanging weight member (300) by the clamping device (200), the hanging weight test method further comprises: Inject an incompressible medium into the suspended weight (300).

7. A hanging weight test device, using the hanging weight test method according to any one of claims 1 to 6, characterized in that: The suspended weight test device comprises: a suspended weight driving device (100), a clamping device (200) and a suspended weight component (300); The clamping device (200) comprises a clamping seat (210) and a clamping assembly (220); the clamping seat (210) has a housing cavity (211) extending along a first direction; a side wall of the housing cavity (211) is provided with a slideway extending along a second direction perpendicular to the first direction; the slideway is in communication with the housing cavity (211); the clamping assembly (220) has a clamping end, the clamping end is movably disposed in the slideway; and the suspending weight (300) is at least partially disposed in the housing cavity (211); The suspended weight driving device (100) has a driving end, the driving end is movable along the first direction and is connected to the suspended weight component (300).

8. The hanging weight test equipment according to claim 7, characterized in that: The clamping assembly (220) comprises a first telescopic member (221), a second telescopic member (222), a first slip (223) and a second slip (224); The first telescopic member (221) and the second telescopic member (222) are respectively connected to two opposite sides of the clamping seat (210) along the second direction, and the telescopic direction of the first telescopic member (221) is the same as the telescopic direction of the second telescopic member (222); The side walls of the clamping seat (210) are provided with a first slideway (212) and a second slideway (213) respectively located on both sides of the accommodating cavity (211); the first cava (223) is slidably connected to the first slideway (212) and connected to the first telescopic member (221); the second cava (224) is slidably connected to the second slideway (213) and connected to the second telescopic member (222).

9. The hanging weight test equipment according to claim 8, characterized in that: The clamping assembly (220) further comprises a first locking member (225) and a second locking member (226); The first locking member (225) is threadedly connected to the first slideway (212), and one end of the first locking member (225) located in the first slideway (212) is contactable with the first cava (223); the second locking member (226) is threadedly connected to the second slideway (213), and one end of the second locking member (226) located in the second slideway (213) is contactable with the second cava (224).

10. The hanging weight test equipment according to claim 7, characterized in that: The suspended weight test device further comprises a universal fixing seat (400), wherein the universal fixing seat (400) is connected to the suspended weight driving device (100); The universal fixing seat (400) is provided with an avoidance hole (410) and a plurality of first mounting holes (420), and the avoidance hole (410) is arranged opposite to the accommodating cavity (211); The clamping seat (210) is provided with a plurality of second mounting holes, the plurality of second mounting holes are respectively coaxially arranged with at least some of the first mounting holes (420) among the plurality of first mounting holes (420), and fasteners are provided in the coaxially arranged first mounting holes (420) and the second mounting holes.

11. The hanging weight test equipment according to claim 7, characterized in that: The suspended weight driving device (100) comprises a device body (110) and a hydraulic driving rod (120), wherein the hydraulic driving rod (120) is movably arranged on the device body (110), and the hydraulic driving rod (120) is connected to the suspended weight member (300); The device body (110) is provided with a first interface (111) and a second interface (112); The suspended weight test device further comprises a hydraulic station (500) and a first pipeline (810) and a second pipeline (820) respectively connected to the hydraulic station (500), wherein the first pipeline (810) is connected to the first interface (111), and the second pipeline (820) is connected to the second interface (112).

12. The hanging weight test equipment according to claim 11, characterized in that: The device body (110) is provided with a third slideway (113) extending along the first direction, and the hydraulic drive rod (120) is slidably connected to the third slideway (113); The suspended weight driving device (100) further comprises a third locking member (130), wherein the third locking member (130) is threadedly connected to the third slideway (113), and one end of the third locking member (130) located in the third slideway (113) is contactable with the hydraulic driving rod (120).

13. The hanging weight test equipment according to claim 7, characterized in that: The clamping device (200) further comprises a cover shell (230), wherein the cover shell (230) is connected to an end of the clamping seat (210) facing away from the suspended weight driving device (100); The cover shell (230) is provided with an opening (231) and a pressing port (232), the opening (231) is in communication with the accommodating cavity (211), and the pressing port (232) is connected to the pressing station (600) via a third pipeline (830); At least part of the suspending weight (300) extends into the inner cavity of the housing (230) via the opening (231), and a preset distance is formed between the end surface of the suspending weight (300) and the bottom surface of the housing (230) facing away from the opening (231).

14. The hanging weight test equipment according to claim 7, characterized in that: The hanging weight (300) comprises a tube body (310), a first plug (320) and a second plug (330); The first plug (320) is arranged at the first end of the tube body (310), and the second plug (330) is arranged at the second end of the tube body (310); the first plug (320), the second plug (330) and the inner wall of the tube body (310) together form a liquid injection cavity (340).

15. The hanging weight test equipment according to claim 14, characterized in that: The suspended weight driving device (100) comprises a device body (110) and a hydraulic driving rod (120); the hydraulic driving rod (120) is movably arranged on the device body (110); and a first connecting structure (121) is provided at one end of the hydraulic driving rod (120) adjacent to the suspended weight member (300); The first plug (320) is provided with a second connection structure (321), and the second connection structure (321) is connected to the first connection structure (121) via a connection piece (122).

16. The hanging weight test equipment according to claim 7, characterized in that: The suspended weight test device further comprises a base support (700); The base support (700) comprises a first layer support (710), a second layer support (720) and a plurality of support beams (730); the plurality of support beams (730) are all fixedly connected to the first layer support (710) and are all extended along the first direction; the second layer support (720) is spaced apart from the first layer support (710) and is respectively fixedly connected to the plurality of support beams (730); The clamping device (200) is arranged on the second layer bracket (720).

Images