A pressure testing platform for cantilever basket test

Abstract

The present application relates to cantilever hanging basket test technical field, specifically, it is a kind of pressure test platform for cantilever hanging basket test.It includes base, and pressure assembly is slidably arranged on the base, and pressure test platform is fixedly installed on the upper end of pressure assembly.In the present application, the pressure test platform fixedly connected with pressure assembly is driven to contract and carry out pressure test on the lower end of the inside of hanging basket;by moving the first power assembly to the outside of main pressure part, the length of main pressure part can be expanded, the two auxiliary pressure parts are moved to the two sides of main pressure part respectively, the pressing width of pressure test platform can be expanded, so that pressure test platform can test different sizes of cantilever hanging basket according to needs;the two sides of auxiliary pressure part are expanded to the two sides of main pressure part, the strength of the inner formwork on the two sides of the inside of cantilever hanging basket can be analyzed;the rotating of transmission assembly drives the rotation of push rod and the turning of rotating plate to vertical state, the rotating plate can carry out strength pressure test on single scattered part of the tension platform in the inside of cantilever hanging basket.

Description

Technical Field

[0001] This invention relates to the field of cantilever basket testing technology, and more specifically, to a pressure test bench for cantilever basket testing. Background Technology

[0002] The hanging basket is a key piece of equipment in cantilever construction, typically used in the construction of cantilevered sections of viaducts and bridges. The cantilever hanging basket method is employed for the cantilevered sections. It consists of a triangular truss, lifting system, traveling system, inner and outer formwork, and a tensioning platform. After the zero-block construction is completed, the hanging basket is assembled on top and pressure tested. The cantilevered sections are then constructed sequentially using the hanging basket equipment. The hanging basket equipment requires specialized design and calculation. Before arrival on site, the hanging basket undergoes trial assembly and acceptance, and a certificate of conformity is issued. The hanging basket is assembled piece by piece under the manufacturer's guidance, and after completion, it is inspected and pre-stressed. The hanging basket equipment is inspected after each travel to eliminate inelastic deformation of the structure and ensure construction safety. The maximum load of the hanging basket is generally considered to be 1.3 times the weight of the largest cantilevered section.

[0003] In existing technologies, pressure testing of cantilever baskets typically employs methods such as water tank pressurization, test bench pressurization, and sandbag testing. Multiple weights of a certain amount are placed on the tensioning platform of the basket, and pressure is tested in stages, usually at 60%, 100%, and 110% loads. Loading continues only after two consecutive settlement differences are less than 2 mm. However, this current method cannot guarantee uniform weight distribution on both sides of the basket during the weight placement process. Typically, a certain weight is placed on one side before the same weight is placed on the other side. This not only fails to ensure consistent placement but also easily leads to uneven stress on both sides of the basket, affecting the test results.

[0004] A pre-compression device for a cantilever bridge support and hanging basket, disclosed in Chinese Patent No. CN 114908683 B, includes two mounting frames. A cantilever is connected to the lower end of both mounting frames. A hanging basket is fitted and fixedly connected to one side of the cantilever. A connecting frame is fixedly connected to the lower side of the hanging basket. A second limiting groove is laterally opened on the upper end of the two mounting frames on their adjacent sides. A compression mechanism is installed between one side of the two mounting frames. The two mounting frames are connected to the compression mechanism via a drive mechanism. The drive mechanism is connected to a pressing mechanism via a first connecting mechanism and a second connecting mechanism. In use, the drive mechanism moves the pressure plate of the compression mechanism to directly above the hanging basket, while the pressing mechanism presses down on the main plate. Then, the pressure plate compresses the lower end of the hanging basket, achieving pre-compression. This eliminates the need to place heavy objects inside the hanging basket for pre-compression, does not require hoisting equipment, requires little operating space, and is relatively simple to operate.

[0005] As mentioned above, the pre-stressing device for cantilever bridge supports and hanging baskets in the prior art can achieve the purpose of pressure testing by pressing the lower end of the hanging basket through the pressing mechanism; however, in actual use, the size of the viaduct and the bridge are different, and the size of the hanging basket inside will also be different. The pressure testing device in the prior art cannot adjust the pressure testing area as needed; moreover, the pressure testing device in the prior art cannot perform compression tests on the inner and outer templates on both sides of the hanging basket; and it cannot perform pressure tests on individual components of the tensioning platform inside the hanging basket.

[0006] In view of this, we propose a pressure test table for cantilever basket testing. Summary of the Invention

[0007] The purpose of this invention is to provide a pressure test bench for cantilever basket testing, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides a pressure testing platform for a cantilever hanging basket test, comprising a base, a pressure applying component slidably disposed on the base, a pressure testing platform fixedly mounted on the upper end of the pressure applying component, the pressure testing platform being fixedly connected to the pressure applying component via a support portion, the pressure testing platform comprising a main pressure portion, the main pressure portion being fixedly connected to the opposite end of the support portion, secondary pressure portions symmetrically disposed on both sides of the main pressure portion for adjusting its pressing width, a first power component movably disposed inside the main pressure portion for adjusting its pressing depth, and multiple transmission components symmetrically disposed on both sides of the first power component for controlling the contraction or expansion of the secondary pressure portions.

[0009] As a further improvement to this technical solution, the pressure application component includes a base, the lower surface of which is slidably connected to the upper surface of the base, a first electric push rod is fixedly provided on the upper surface of the base near one end, the upper end of the first electric push rod is fixedly connected to the lower surface of the support, and a balance frame for ensuring the stability of the support is fixedly provided on the upper surface of the base near the other end, and a pressure scale is fixedly installed on the outer surface of the outer wall of the balance frame.

[0010] As a further improvement to this technical solution, the first power component includes a counterweight block. The lower surface of the counterweight block is in movable engagement with the bottom surface of the main pressure part. Multiple transmission components are symmetrically arranged on both sides of the counterweight block. A second electric push rod is provided at one end of the counterweight block. One end of the counterweight block is fixedly connected to the movable end of the second electric push rod. The fixed end of the second electric push rod extends into the interior of the support part and is fixedly connected to the support part.

[0011] As a further improvement to this technical solution, the multiple transmission components include racks, with the opposite sides of the two racks fixedly connected to the two sides of the counterweight, one end of each rack passing through the main pressure part and extending into the interior of the support part, and the other end of each rack being flush with the other end of the counterweight. Multiple gears that mesh with the two racks are symmetrically arranged on both sides of the counterweight, and rotating tubes are fixedly provided on the outer surfaces of the multiple gears. The outer ends of the multiple rotating tubes located on both sides of the counterweight extend out of the main pressure part, and the outer ends of the multiple rotating tubes are rotatably connected to the two sides of the main pressure part. Screws are threadedly connected to the interior of the multiple rotating tubes, and the outer ends of the multiple screws are fixedly connected to the inner surfaces of the two secondary pressure parts.

[0012] As a further improvement to this technical solution, multiple first notches are symmetrically opened on both sides of the bottom of the main pressure part. Each of the multiple first notches is fixedly provided with a connecting rod. Each of the multiple connecting rods is a telescopic structure. The outer ends of the multiple connecting rods located on both sides of the main pressure part are fixedly connected to the secondary pressure parts on both sides of the main pressure part.

[0013] As a further improvement to this technical solution, each of the multiple connecting rods includes an inner rod, the inner ends of the multiple inner rods are respectively fixedly connected to the multiple first notches on both sides of the main pressure part, and the outer walls of the multiple inner rods are slidably connected to outer rods. The outer ends of the multiple outer rods located on both sides of the main pressure part are fixedly connected to the inner surfaces of the secondary pressure parts on both sides of the main pressure part near the lower edge.

[0014] As a further improvement to this technical solution, a second notch is provided on both sides of the bottom of the main pressure part near the multiple first notches. A rotating shaft is fixedly provided inside each of the multiple second notches. A spring is provided on the outer wall of each of the multiple rotating shafts near the inner end. The inner ends of the multiple springs are fixedly connected to the multiple second notches respectively. A rotating plate is rotatably provided on the outer wall of each of the multiple rotating shafts. The outer ends of the multiple springs are movably connected to the inner ends of the multiple rotating plates respectively. The outer ends of the multiple rotating plates are movably engaged with the inner sides of the two secondary pressure parts. A lever is fixedly provided on the outer ends of each of the multiple rotating shafts. The outer ends of the multiple levers are movably engaged with the multiple rotating plates respectively.

[0015] As a further improvement to this technical solution, each of the two secondary pressure parts is provided with a telescopic rod near its outer end. The telescopic rod includes a fixed rod. The four fixed rods are respectively fixedly connected to the two sides of the main pressure part near its outer end. Each of the four fixed rods has a movable rod movably connected inside. The outer ends of the four movable rods are respectively fixedly connected to the inner side of the two secondary pressure parts near their outer ends.

[0016] As a further improvement to this technical solution, the base includes a base body, and the lower surface of the base body is fixedly provided with feet at both ends.

[0017] As a further improvement to this technical solution, a second power assembly is rotatably provided inside the base. The second power assembly includes a lead screw rotatably installed inside the base. One end of the lead screw extends to the outside of one end of the base and is connected to the output shaft of a drive motor. A nut pair is fixedly provided on the lower surface of the base. The nut pair is located inside the base and is connected to the lead screw in a transmission manner.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. In this cantilever hanging basket test pressure table, the pressure application component is contracted to drive the pressure test platform fixedly connected to it to press the lower end of the hanging basket inside, and the segmented pressure test is carried out. Different loads are gradually increased to eliminate the inelastic deformation of the structure and ensure construction safety. In addition, the position of the pressure application platform inside the cantilever hanging basket is adjusted to carry out multi-position pressure test.

[0020] 2. In this cantilever basket test pressure table, by moving the first power component to the outside of the main pressure section until it extends to the outside of the main pressure section, the length of the main pressure section can be expanded, thereby increasing the depth of the pressure test platform pressing the inside of the cantilever basket as needed.

[0021] 3. In the test pressure table for the cantilever hanging basket test, while the first power component moves outward to the main pressure part, it can drive the transmission component to engage and drive. While the transmission component engages and drives, it can drive the two secondary pressure parts to move to both sides of the main pressure part, thereby expanding the pressing width of the test pressure platform as needed, so that the test pressure platform can test cantilever hanging baskets of different sizes as needed.

[0022] 4. In the test bench for the cantilever hanging basket test, the two secondary pressure parts extend to both sides of the main pressure part until the outer sides of the two secondary pressure parts squeeze the inner membrane plates located on both sides inside the cantilever hanging basket, so that the strength of the two inner templates can be experimentally analyzed.

[0023] 5. In this cantilever hanging basket test pressure table, by rotating the rotating tube in the transmission assembly, the lever fixedly installed at the outer end of the rotating tube rotates with the rotating tube and moves the rotating plate until the rotating plate is flipped to a vertical state. At this time, the side edge of the vertical rotating plate protrudes from the lower surface of the main pressure part and the secondary pressure part, and the first electric push rod retracts to drive the test pressure platform to press down, thereby driving the protruding rotating plate to press down onto the surface of the individual components of the tensioning platform inside the cantilever hanging basket, so that the strength pressure test can be carried out on the individual components of the tensioning platform inside the cantilever hanging basket. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the pressure testing platform of the present invention when it is pressed into the cantilever basket for pressure testing;

[0025] Figure 2 This is a schematic diagram of the overall structure of the base, pressure application components, and pressure testing platform of the present invention;

[0026] Figure 3 This is an exploded view of the overall structure of the base, pressure application components, and pressure testing platform of the present invention;

[0027] Figure 4 This is a cross-sectional view of the overall structure of the base, the second power component, and the pressure application component of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall structure of the pressure testing platform and support of the present invention;

[0029] Figure 6 This is a schematic diagram of the overall structure of the pressure testing platform of the present invention;

[0030] Figure 7 This is an exploded view of the overall structure of the pressure testing platform of the present invention;

[0031] Figure 8 This is an exploded view of the overall structure of the first power component and multiple transmission components on both sides of the present invention;

[0032] Figure 9 This is an exploded view of the overall structure of the main pressure section and the auxiliary pressure section of the present invention;

[0033] Figure 10 This is a schematic diagram of the overall structure of the main pressure section and multiple rotating plates on both sides of the present invention.

[0034] The meanings of the labels in the diagram are as follows:

[0035] 1. Base; 10. Seat body; 11. Seat legs

[0036] 2. Pressure application assembly; 20. Base; 200. Nut pair; 21. First electric push rod; 22. Balance frame; 220. Pressure scale;

[0037] 3. Pressure testing platform; 30. Main pressure section; 300. First notch; 301. Second notch; 31. Secondary pressure section; 32. Connecting rod; 320. Inner rod; 321. Outer rod; 33. Rotating shaft; 330. Spring; 331. Rotating plate; 34. Telescopic rod; 340. Fixed rod; 341. Movable rod;

[0038] 4. Support section;

[0039] 5. First power assembly; 50. Counterweight; 51. Second electric actuator;

[0040] 6. Transmission assembly; 60. Rack; 61. Gear; 610. Rotary tube; 611. Lever; 62. Screw;

[0041] 7. Second power assembly; 70. Lead screw. Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0044] Please see Figures 1-10As shown, this embodiment provides a pressure testing table for a cantilever basket test, including a base 1, a pressure applying component 2 slidably mounted on the base 1, and a pressure testing platform 3 fixedly mounted on the upper end of the pressure applying component 2. Before testing the cantilever basket, by placing the base 1 at the cantilever basket to be tested, the pressure applying component 2 lifts the pressure testing platform 3, which extends into the cantilever basket to be tested, facilitating the pressure testing work. The pressure testing platform 3 and the pressure applying component 2 are fixedly connected by a support part 4, and the lower surface of the support part 4 is fixedly connected to the upper surface of the pressure applying component 2. The support part 4 is fixedly connected to the end opposite to the pressure testing platform 3. After the pressure testing platform 3 is located inside the cantilever basket, the subsequent pressure testing work can begin. When testing the cantilever basket, the pressure applying component 2 is contracted, and at the same time, the pressure applying component 2 drives the pressure testing platform 3 fixedly connected to it to press the lower end of the basket. The pressure test is conducted in stages, gradually increasing the load of different magnitudes to eliminate the inelastic deformation of the structure and ensure construction safety. The pressure testing platform 3 includes a main pressure part 30, which is fixedly connected to the end opposite to the support part 4. The main pressure part 30 has two sides facing... The system includes a secondary pressure section 31 for adjusting the pressing width, and a primary pressure section 30 with a movable primary power assembly 5 for adjusting the pressing depth. During the pressure test, activating the primary power assembly 5 moves it outward from the primary pressure section 30 until it extends beyond its boundaries. This expands the length of the primary pressure section 30, allowing the pressure test platform 3 to press deeper into the cantilever basket as needed. Multiple transmission assemblies 6 are symmetrically arranged on both sides of the primary power assembly 5 to control the contraction or expansion of the secondary pressure section 31. While moving outward from the main pressure section 30, the transmission component 6 can be engaged and driven. Simultaneously, the transmission component 6 can drive the two secondary pressure sections 31 to move to both sides of the main pressure section 30, thereby expanding the pressing width of the test platform 3 as needed. This allows the test platform 3 to test cantilever baskets of different sizes as required. Furthermore, the two secondary pressure sections 31 extend to both sides of the main pressure section 30 until the outer sides of the two secondary pressure sections 31 press against the inner membrane plates located on both sides inside the cantilever basket, allowing for experimental analysis of the strength of the two inner templates.

[0045] Based on the above, the structure and working process of the pressure application component 2 need to be described. The pressure application component 2 includes a base 20, the lower surface of which is slidably connected to the upper surface of the base 1. A first electric push rod 21 is fixedly installed on the upper surface of the base 20 near one end. The upper end of the first electric push rod 21 is fixedly connected to the lower surface of the support part 4. A balance frame 22 for ensuring the stability of the support part 4 is fixedly installed on the upper surface of the base 20 near the other end. A pressure scale 220 is fixedly installed on the outer surface of the outer wall of the balance frame 22. When the base 1 is placed on the surface to be pressurized... When the cantilever basket is being pressure tested, the first electric push rod 21 in the pressure application component 2 is activated, causing the movable end of the first electric push rod 21 to extend. At the same time, the pressure test platform 3 is lifted to the upper part of the tensioning platform of the cantilever basket. The position of the base 1 is then adjusted until the pressure test platform 3 is adjusted to the middle of the cantilever basket. At this time, the movable end of the first electric push rod 21 is retracted, and the pressure test platform 3 is pressed down onto the tensioning platform of the cantilever basket. By adjusting the retraction amount of the first electric push rod 21 in stages, the cantilever basket can be pressure tested.

[0046] The balance frame 22 is a telescopic structure, consisting of a fixed frame and a movable frame. The fixed frame is fixedly connected to the base 20, and the movable frame is fixedly connected to the support part 4. The movable end of the first electric push rod 21 extends or retracts, driving the test pressure platform 3 to rise or fall. At the same time, it can drive the movable frame in the balance frame 22 inside the fixed frame to extend and retract in equal amounts. This can drive the balance frame 22 at the other end of the support part 4 to extend and retract in equal amounts. The balance frame 22 and the first electric push rod 21 work together to ensure the stability of the movement of the test pressure platform 3, which is fixedly connected to the support part 4. At the same time, the extension and retraction of the movable frame in the balance frame 22 can drive the pressure scale 220 (a type of balancer that uses Hooke's law or the lever balance principle of force to measure the mass of an object) fixedly installed on the outer wall of the fixed frame to display the pressure value. This allows people to intuitively observe the weight value applied to the cantilever basket by the test pressure platform 3 each time, which helps to ensure the accuracy of segmented pressure testing.

[0047] Specifically, the first power assembly 5 includes a counterweight 50. The lower surface of the counterweight 50 is in movable engagement with the bottom surface of the main pressure section 30. Multiple transmission assemblies 6 are symmetrically arranged on both sides of the counterweight 50. A second electric push rod 51 is provided at one end of the counterweight 50. One end of the counterweight 50 is fixedly connected to the movable end of the second electric push rod 51. The fixed end of the second electric push rod 51 extends into the interior of the support section 4 and is fixedly connected to the support section 4. When adjustment is required, the second electric push rod 51 in the first power assembly 5 is activated, causing the movable end of the second electric push rod 51 to extend out, while simultaneously driving the counterweight 50 fixedly connected to it to move outward of the main pressure section 30 until it extends outward of the main pressure section 30. At this time, the counterweight 50 can expand the length of the main pressure section 30, thereby expanding the depth of the pressure test platform 3 pressing the cantilever basket as needed.

[0048] It is necessary to explain the multiple transmission components 6. Each transmission component 6 includes a rack 60. The opposing sides of two racks 60 are fixedly connected to both sides of the counterweight 50. One end of each rack 60 passes through the main pressure section 30 and extends into the interior of the support section 4. The other ends of each rack 60 are flush with the other end of the counterweight 50. Multiple gears 61, meshing with the racks 60, are symmetrically arranged on both sides of the counterweight 50. Rotary tubes 610 are fixedly mounted on the outer surfaces of each gear 61. The outer ends of the multiple rotary tubes 610 located on both sides of the counterweight 50 extend outside the main pressure section 30, and are rotatably connected to both sides of the main pressure section 30. The interiors of the multiple rotary tubes 610 are all threaded. The main pressure section 3 is connected to screws 62, and the outer ends of the screws 62 are fixedly connected to the inner surfaces of the two auxiliary pressure sections 31. When the counterweight 50 moves to the outside of the main pressure section 30, it can drive the two racks 60 to move to the outside of the main pressure section 30. When the two racks 60 move to the outside of the main pressure section 30, they can drive the gears 61 meshing with them to rotate. The rotation of the gears 61 drives the rotating tube 610 to rotate. When the rotating tube 610 rotates, it drives the screws 62 to move to the outer ends of the rotating tube 610, thereby driving the two auxiliary pressure sections 31 to move to both sides of the main pressure section 30. This allows the pressing width of the main pressure section 30 to be expanded as needed, so that the pressure testing platform 3 can test cantilever baskets of different sizes as needed.

[0049] Furthermore, to ensure the stability of the connection between the secondary pressure part 31 and the main pressure part 30, multiple first notches 300 are symmetrically provided on both sides of the bottom of the main pressure part 30. Each of the multiple first notches 300 is fixedly provided with a connecting rod 32. The multiple connecting rods 32 are all telescopic structures. The outer ends of the multiple connecting rods 32 located on both sides of the main pressure part 30 are fixedly connected to the secondary pressure parts 31 on both sides of the main pressure part 30. When the transmission assembly 6 drives the secondary pressure part 31 to move towards both sides of the main pressure part 30, it can drive the connecting rods 32 inside the first notches 300 to extend and retract with the secondary pressure part 31. The connecting rods 32 play the role of connecting the main pressure part 30 and the secondary pressure part 31, which helps to ensure the stability of the connection between the secondary pressure part 31 and the main pressure part 30.

[0050] Furthermore, each of the multiple connecting rods 32 includes an inner rod 320. The inner ends of the multiple inner rods 320 are fixedly connected to the multiple first notches 300 on both sides of the main pressure part 30. The outer walls of the multiple inner rods 320 are slidably connected to outer rods 321. The outer ends of the multiple outer rods 321 located on both sides of the main pressure part 30 are fixedly connected to the inner surfaces of the secondary pressure parts 31 on both sides of the main pressure part 30 near the lower edge. When the secondary pressure parts 31 move towards both sides of the main pressure part 30, they can drive the inner rods 320 fixedly connected to the secondary pressure parts 31 to move along the inner walls of the outer rods 321 fixedly connected to the first notches 300, which can ensure the trajectory of the movement of the secondary pressure parts 31 and the stability of the structure.

[0051] It is worth noting that, in actual use, when hoisting construction tools and materials into the cantilever basket, these tools are placed individually on individual components of the tensioning platform inside the cantilever basket. Therefore, the strength of these individual components is also a crucial factor for construction safety. On both sides of the bottom of the main pressure section 30, near the multiple first notches 300, there are second notches 301. Each of the multiple second notches 301 has a fixed rotating shaft 33 inside. Each of the multiple rotating shafts 33 has a spring 330 near its inner end on its outer wall. The inner ends of the multiple springs 330 are fixedly connected to the multiple second notches 301. Each of the multiple rotating shafts 33 has a rotating plate 331 rotatably mounted on its outer wall. The outer ends of the multiple springs 330 are movably connected to the inner ends of the multiple rotating plates 331. The outer ends of the multiple rotating plates 331 are movably engaged with the inner sides of the two secondary pressure sections 31. Each of the multiple rotating shafts 33 has a lever 611 fixedly mounted on its outer end. The outer ends of the multiple levers 611 are movably engaged with the multiple rotating plates 331. When tensioning is required inside the basket… When a single component of the platform undergoes a pressure test, the movable end of the first electric push rod 21 in the pressure application assembly 2 extends to raise the pressure test platform 3 a certain distance. This causes the transmission assembly 6 to move the two secondary pressure sections 31 to the sides. Simultaneously, the spring 330 relaxes, releasing the pressure from the secondary pressure sections 31. As the spring 330 relaxes, it drives the rotating plate 331 to move towards the outer end of the rotating shaft 33 until the rotating plate 331 is completely moved to the outside of the main pressure plate 30. The lever 611 fixedly installed at the outer end of the rotating tube 610 rotates with the rotating tube 610 and moves the rotating plate 331 until the rotating plate 331 is flipped to a vertical state. At this time, the side edge of the vertical rotating plate 331 protrudes from the lower surface of the main pressure part 30 and the secondary pressure part 31, and causes the first electric push rod 21 to retract and drive the test pressure platform 3 to press down, thereby driving the protruding rotating plate 331 to press down onto the surface of the individual component of the tensioning platform inside the cantilever hanging basket, so that the individual component of the tensioning platform can be subjected to a strength test.

[0052] In addition, each of the two secondary pressure parts 31 is provided with a telescopic rod 34 near its outer end. The telescopic rod 34 includes a fixed rod 340. The four fixed rods 340 are fixedly connected to the two sides of the main pressure part 30 near its outer end. The four fixed rods 340 are movably connected to the movable rods 341 inside. The outer ends of the four movable rods 341 are fixedly connected to the inner side of the two secondary pressure parts 31 near their outer ends. When the two secondary pressure parts 31 move to the sides of the main pressure part, they can drive the movable rods 341 in the telescopic rod 34 to move back and forth along the inner wall of the fixed rods 340, thereby ensuring the smooth movement of the secondary pressure parts 31.

[0053] Secondly, to facilitate the adjustment of the position of the pressure testing platform 3 inside the cantilever basket, the base 1 includes a seat body 10. Seat feet 11 are fixedly installed at both ends of the lower surface of the seat body 10. A second power assembly 7 is rotatably installed inside the seat body 10. The second power assembly 7 includes a lead screw 70 rotatably installed inside the seat body 10. One end of the lead screw 70 extends to the outside of one end of the seat body 10, and one end of the lead screw 70 is connected to the output shaft of the drive motor. A nut pair 200 is fixedly installed on the lower surface of the base 20. The nut pair 200 is located inside the seat body 10 and is connected to the lead screw 70 via a transmission connection. By starting the drive motor, the output shaft of the drive motor rotates, transmitting power to the lead screw 70. Simultaneously, the lead screw 70 rotates, causing the nut pair 200 to move back and forth along the lead screw 70, thereby enabling the pressure testing platform 3 to move inside the cantilever basket. This facilitates the adjustment of the position of the pressure testing platform 3 inside the cantilever basket for multi-position pressure testing experiments.

[0054] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure testing platform for a cantilever basket test, comprising a base (1), wherein a pressure applying component (2) is slidably disposed on the base (1), and a pressure testing platform (3) is fixedly installed on the upper end of the pressure applying component (2), characterized in that: The pressure testing platform (3) and the pressure application component (2) are fixedly connected by a support (4). The pressure testing platform (3) includes a main pressure part (30). The main pressure part (30) is fixedly connected to the opposite end of the support (4). The main pressure part (30) is symmetrically provided with secondary pressure parts (31) on both sides for adjusting its pressing width. The main pressure part (30) is movably provided with a first power component (5) for adjusting its pressing depth. The first power component (5) is symmetrically provided with multiple transmission components (6) on both sides for controlling the contraction or expansion of the secondary pressure parts (31). The bottom sides of the main pressure part (30) are symmetrically provided with a plurality of first notches (300), and a connecting rod (32) is fixedly provided inside each of the plurality of first notches (300). The plurality of connecting rods (32) are all telescopic structures. The outer ends of the plurality of connecting rods (32) located on both sides of the main pressure part (30) are fixedly connected to the secondary pressure parts (31) on both sides of the main pressure part (30). Each of the multiple connecting rods (32) includes an inner rod (320). The inner ends of the multiple inner rods (320) are respectively fixedly connected to the multiple first notches (300) on both sides of the main pressure part (30). The outer walls of the multiple inner rods (320) are slidably connected to outer rods (321). The outer ends of the multiple outer rods (321) located on both sides of the main pressure part (30) are fixedly connected to the inner surface of the secondary pressure part (31) on both sides of the main pressure part (30) near the lower edge. On both sides of the bottom of the main pressure part (30), a second notch (301) is provided near the multiple first notches (300). A rotating shaft (33) is fixedly provided inside the multiple second notches (301). A spring (330) is provided on the outer wall of the multiple rotating shafts (33) near the inner end. The inner end of the multiple springs (330) is fixedly connected to the multiple second notches (301). A rotating plate (331) is rotatably provided on the outer wall of the multiple rotating shafts (33). The outer end of the multiple springs (330) is movably connected to the inner end of the multiple rotating plates (331). The outer end of the multiple rotating plates (331) is movably engaged with the inner side of the two secondary pressure parts (31). A lever (611) is fixedly provided on the outer end of the multiple rotating shafts (33). The outer end of the multiple levers (611) is movably engaged with the multiple rotating plates (331).

2. The test bench for cantilever basket testing according to claim 1, characterized in that: The pressure application component (2) includes a base (20), the lower surface of the base (20) is slidably connected to the upper surface of the base (1), a first electric push rod (21) is fixedly provided on the upper surface of the base (20) near one end, the upper end of the first electric push rod (21) is fixedly connected to the lower surface of the support (4), and a balance frame (22) for ensuring the stability of the support (4) is fixedly provided on the upper surface of the base (20) near the other end, and a pressure scale (220) is fixedly installed on the outer surface of the outer wall of the balance frame (22).

3. The test bench for cantilever basket testing according to claim 1, characterized in that: The first power assembly (5) includes a counterweight (50). The lower surface of the counterweight (50) is in movable engagement with the bottom surface of the main pressure part (30). Multiple transmission assemblies (6) are symmetrically arranged on both sides of the counterweight (50). A second electric push rod (51) is provided at one end of the counterweight (50). One end of the counterweight (50) is fixedly connected to the movable end of the second electric push rod (51). The fixed end of the second electric push rod (51) extends into the interior of the support part (4), and the fixed end of the second electric push rod (51) is fixedly connected to the support part (4).

4. The test bench for cantilever basket testing according to claim 3, characterized in that: The multiple transmission components (6) include two racks (60), the opposite sides of the two racks (60) are fixedly connected to the two sides of the counterweight (50), one end of the two racks (60) passes through the main pressure part (30) and extends into the interior of the support part (4), and the other end of the two racks (60) is flush with the other end of the counterweight (50). Multiple gears (61) that mesh with the two racks (60) are symmetrically arranged on both sides of the counterweight (50). The outer surfaces of the multiple gears (61) are all fixedly provided with rotating tubes (610). The outer ends of the multiple rotating tubes (610) located on both sides of the counterweight (50) extend to the outside of the main pressure part (30). The outer ends of the multiple rotating tubes (610) are rotatably connected to both sides of the main pressure part (30). The interior of the multiple rotating tubes (610) is threaded with screws (62). The outer ends of the multiple screws (62) are fixedly connected to the inner surfaces of the two auxiliary pressure parts (31).

5. The test bench for cantilever basket testing according to claim 1, characterized in that: Both of the secondary pressure parts (31) are provided with telescopic rods (34) near their outer ends. Each telescopic rod (34) includes a fixed rod (340). The four fixed rods (340) are respectively fixedly connected to the two sides of the main pressure part (30) near their outer ends. Each of the four fixed rods (340) is movably connected to a movable rod (341). The outer ends of the four movable rods (341) are respectively fixedly connected to the inner side of the two secondary pressure parts (31) near their outer ends.

6. The test bench for cantilever basket testing according to claim 2, characterized in that: The base (1) includes a seat body (10), and the lower surface of the seat body (10) is fixedly provided with seat feet (11) at both ends.

7. The test bench for cantilever basket testing according to claim 6, characterized in that: The seat (10) is rotatably provided with a second power assembly (7). The second power assembly (7) includes a lead screw (70) rotatably installed inside the seat (10). One end of the lead screw (70) extends to the outside of one end of the seat (10), and one end of the lead screw (70) is connected to the output shaft of the drive motor. A nut pair (200) is fixedly provided on the lower surface of the base (20). The nut pair (200) is located inside the seat (10) and is throttle-connected to the lead screw (70).

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