Gangway test bench

Abstract

The present invention provides a tunnel test bench, which belongs to the technical field of tunnel test benches and includes a base, the upper end of which is fixedly connected to two groups of steel materials, a group of hydraulic cylinders is installed above each group of steel materials, an annular seat is installed above each group of hydraulic cylinders, a plurality of horizontal Hook's hinges are installed on the lower end of the annular seat and the upper end of the steel materials, the horizontal Hook's hinges and the annular seat, as well as the horizontal Hook's hinges and the steel materials are all connected via a plurality of connectors, a gear ring is screwed onto the inner side of the annular seat, the lower end of the annular seat is fixedly connected to a servo motor, the output end of the servo motor extends to the inner side of the gear ring and is fixedly connected to a gear, the gear and the gear ring are meshed with each other, the upper end of the gear ring is fixedly connected to a frame, and a tunnel body is installed between the two groups of frames. The present invention solves the problem that existing tunnel test benches cannot simulate vehicle driving realistically, resulting in the conclusions drawn from the tunnel test being unable to approach the performance exhibited by the tunnel under actual vehicle driving conditions, and thus the accuracy of the tunnel test cannot be guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of tunnel test benches, and in particular relates to a tunnel test bench. Background Art

[0002] As we all know, the gangway is an important component on high-speed trains, subways and other vehicles. It can connect two adjacent carriages and is a flexible and movable part of the vehicle. It is suitable for vehicles running underground, on the ground and on elevated lines, allowing passengers to safely travel between vehicles. The gangway is mainly composed of folding canopies, wall panels, transition panels and roof panels. The gangway needs to be tested for durability and other performance during production. Through relevant performance testing, problems in reliability during product design and manufacturing can be identified, so as to facilitate design improvements or improve process levels.

[0003] The existing tunnel test bench is unable to simulate the vehicle's driving realistically, resulting in the conclusions drawn from the tunnel test being unable to approach the performance demonstrated by the tunnel under actual vehicle driving conditions, and thus the accuracy of the tunnel test cannot be guaranteed. Summary of the Invention

[0004] The present invention provides a tunnel test bench, the purpose of which is to solve the problem that the existing tunnel test bench cannot truly simulate the driving of the vehicle, resulting in the conclusions drawn from the tunnel test being unable to approach the performance demonstrated by the tunnel under the actual vehicle driving state, and thus the accuracy of the tunnel test cannot be guaranteed.

[0005] An embodiment of the present invention provides a through-channel test bench, which includes a base, the upper end of the base is fixedly connected to two groups of steel materials, a group of hydraulic cylinders is installed above each group of steel materials, an annular seat is installed above each group of hydraulic cylinders, a number of horizontal Hooke's hinges are installed on the lower end of the annular seat and the upper end of the steel materials, the horizontal Hooke's hinges and the annular seat as well as the horizontal Hooke's hinges and the steel materials are connected via a number of connecting parts, a gear ring is screwed onto the inner side of the annular seat, the lower end of the annular seat is fixedly connected to a servo motor, the output end of the servo motor extends to the inner side of the gear ring and is fixedly connected to a gear, the gear and the gear ring are engaged with each other, the upper end of the gear ring is fixedly connected to a frame, and the through-channel body is installed between the two groups of frames.

[0006] Furthermore, an inclined ladder is welded to the side of the frame.

[0007] Furthermore, the connecting piece includes a cylindrical groove reserved on the horizontal Hook's hinge and the annular seat, a threaded opening is reserved on the inner circumference of the cylindrical groove, and the upper end of the cylindrical groove on the annular seat is connected to the circular opening;

[0008] The thread in the columnar groove is connected to the lead screw, and a polygonal column is installed at the lower end of the lead screw, and a prism mouth is reserved at the lower end of the polygonal column;

[0009] The upper end of the screw is equipped with a connecting unit and a vertical variable unit;

[0010] A stop unit for stopping the connecting unit is installed in the prism mouth;

[0011] An inlay unit for stopping the vertical variable unit is installed at the upper end of the prism mouth;

[0012] The coupling unit includes a connecting tube A mounted on the upper end of the lead screw. The upper end of the connecting tube A is fixedly connected to the connecting tube B. The outer diameter of the connecting tube A is smaller than the inner diameter of the connecting tube B. The inner surface of the connecting tube A is fixedly connected to the blocking platform C. The upper end of the blocking platform C is fixedly connected to the elastic member C. The side of the elastic member C farther from the blocking platform C is fixedly connected to the variable platform 2. The variable platform 2 is located inside the connecting tube B.

[0013] The second variable platform includes a conical end A, a rod C, and a conical end B. The rod C is located between the conical ends A and B. The conical end A, the rod C, and the outer surfaces of the conical end B form a ring-shaped opening. A steel ball is installed in the ring-shaped opening. A through-hole is reserved on the circumference of the connecting tube B. The steel ball and the through-hole cooperate with each other. The lower end of the variable platform is fixedly connected to the connecting rod. The side of the connecting rod farther from the variable platform is passed through the center of the blocking platform C. The lower end of the blocking platform C is fixedly connected to the inner tube.

[0014] The vertical adjustment unit includes a carrier fixedly connected to the lower end of the connecting tube A. The carrier is fixedly connected to the elastic member B. The inside of the screw is reserved for an assembly chamber, which is connected to the prism opening. The inner periphery of the assembly chamber is fixedly connected to the blocking platform B. The side of the elastic member B farther from the carrier is fixedly connected to the upper wall of the blocking platform B.

[0015] The stop unit includes a cylindrical opening B reserved inside the polygonal prism, and a rotating rod is screwed into the cylindrical opening B. The rotating rod includes a rod body A and a threaded end. A threaded end is reserved on the outer periphery of the threaded end, a connecting opening is reserved on the connecting rod, and a threaded end is reserved on the inner surface of the connecting opening. The threaded end and the connecting opening are threadedly connected to each other via the threaded end. A cylindrical opening A is reserved on the inner cylinder, and one side of the rod body A passes through the inside of the cylindrical opening A. A variable opening is reserved in the polygonal prism, and the variable opening and the prism opening are connected to each other. The rotating rod is in the variable opening, and a groove is reserved on one side of the polygonal prism, and the groove and the variable opening are connected to each other.

[0016] Furthermore, a storage chamber is reserved on the inner circumference of the connecting tube B, the outer surface of the steel ball and the inner surface of the storage chamber are in contact with each other, and the storage chamber and the through-port are connected to each other.

[0017] Furthermore, the side of the connecting cylinder A that is farther from the connecting cylinder B is located inside the assembly chamber, and one side of the connecting cylinder A is movably connected to the assembly chamber.

[0018] Furthermore, one side of the connecting rod passes through the inside of the inner cylinder, the axis of the inner cylinder coincides with the axis of the connecting rod, a cylindrical opening D is reserved in the center of the blocking platform B, and one side of the inner cylinder passes through the inside of the cylindrical opening D.

[0019] Furthermore, a blocking platform A is fixedly connected to the inner circumference of the assembly chamber, a cylindrical opening C is reserved in the center of the blocking platform A, and one side of the inner cylinder passes through the inside of the cylindrical opening C.

[0020] Furthermore, the splicing unit includes a rotating mouth reserved at the upper end of the prism mouth, and rotating bars are screwed on both sides of the inner surface of the rotating mouth. One side of the rotating bar is fixedly connected to the rotating column, and the outer circumference of the rotating column is fixedly connected to the splicing block. An splicing interface is reserved on the outer circumference of the inner tube, and one side of the splicing block is located in the splicing interface.

[0021] Furthermore, an elastic member A is fixedly connected to the inner circumferential surface of the assembly chamber, and a side of the elastic member A that is farther from the inner circumferential surface of the assembly chamber is fixedly connected to the outer surface of one side of the engaging block.

[0022] Furthermore, the rotating rod is fixedly connected to the variable platform 1 at the side of the polygonal column, and a plurality of notches arranged along the axis of the variable platform 1 are reserved on the outer peripheral surface of the variable platform 1.

[0023] The beneficial effects of the present invention are:

[0024] 1. The present invention simulates the movement of a vehicle while driving by telescoping the various hydraulic cylinders, and rotates the gears through the servo motor, which in turn rotates the gear ring, thereby stimulating the rotation of the frame to simulate the vehicle's cornering action, thereby achieving a realistic simulation of vehicle driving. This allows the gangway body to be tested to ensure its accuracy, and the installation of connectors ensures the stability of the connection between the horizontal Hooker's hinge, the annular seat, and the steel, thereby preventing the horizontal Hooker's hinge from being disassembled due to vibration during the test, thereby ensuring normal testing of the device.

[0025] 2. The present invention is provided with a connecting piece, a coupling unit and a stop unit. The user rotates the prism disassembly rod and then can pull the polygonal prism and the lead screw to rotate, thereby achieving the purpose of connecting the horizontal Hook hinge and the annular seat. When the connection is completed, the user first rotates the variable platform 1 to separate the threaded end of the rotating rod and the connecting opening on one side, and then removes the rotating rod from the prism opening, thereby canceling the stop between the inner cylinder and the connecting rod. When the stop between the inner cylinder and the connecting rod is cancelled, the elastic member C tightened in the connecting cylinder A immediately returns to its original position, and then the variable platform 2 can be pressed toward the upper end of the connecting cylinder B. With the change of the variable platform 2, the steel ball in the storage chamber can be pushed out from the through-hole, thereby extending the radial span of the connecting cylinder B, and then the screw can be stopped from changing due to shaking, thereby ensuring the connection function of the screw.

[0026] And through the installation of the vertical variable unit, after the screw is screwed through the prism disassembly rod, the user removes the prism disassembly rod inside the prism mouth. At this time, the compressive effect of the lower end of the inner tube is immediately eliminated, so the elastic part B fixed to the upper end of the blocking platform B in the extended state immediately returns to normal, and then can pull the connecting tube A to move downward. During the period of pulling the connecting tube A downward, the steel ball moves downward with the connecting tube B until the steel ball is pressed against the lower wall surface inside the circular mouth, thereby preventing the existence of a variable gap between the steel ball and the outer surface of the upper end of the annular seat, and further strengthening the stable connection function of this connecting part.

[0027] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 Schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0030] Figure 2 For the embodiment of the present invention Figure 1 A schematic diagram of the structure at E is enlarged;

[0031] Figure 3 This is a schematic diagram of the main structure of an embodiment of the present invention;

[0032] Figure 4 Schematic diagram of the three-dimensional structure of the connector according to an embodiment of the present invention Figure 1 ;

[0033] Figure 5 Schematic diagram of the three-dimensional structure of the connector according to an embodiment of the present invention Figure 2 ;

[0034] Figure 6 A schematic diagram of a polygonal prism structure according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of a polygonal prism structure viewed from above according to an embodiment of the present invention;

[0036] Figure 8 Schematic diagram of the cross-sectional structure of a connector according to an embodiment of the present invention;

[0037] Figure 9 For the embodiment of the present invention Figure 8 The enlarged structural diagram of F;

[0038] Figure 10 This is a schematic diagram of the structure of the prism disassembly rod according to an embodiment of the present invention;

[0039] Figures: 1. base; 2. steel; 3. hydraulic cylinder; 4. annular seat; 5. horizontal Hook hinge; 6. connector; 7. gear ring; 8. servo motor; 9. gear; 10. frame; 11. through-channel body; 12. inclined ladder; 61. lead screw; 62. polygonal prism; 63. prism opening; 64. connecting tube A; 65. connecting tube B; 66. through-port; 67. inner tube; 68. connecting rod; 69. rotating port; 610. rotating column; 611. splicing block; 612. threaded end; 613. rod body A; 614. variable platform 1; 615. groove; 616. rotating rod; 617 , assembly room; 618, elastic part A; 619, embedding interface; 620, connecting port; 621, cylindrical port A; 622, cylindrical port B; 623, variable port; 624, blocking platform A; 625, cylindrical port C; 626, blocking platform B; 627, cylindrical port D; 628, elastic part B; 629, supporting frame; 630, blocking platform C; 631, variable platform 2; 632, tapered end A; 633, rod C; 634, tapered end B; 635, steel ball; 636, elastic part C; 637, storage room; 638, prismatic disassembly rod; 639, cylindrical groove; 640, round port. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. The same figure marks in the drawings represent the same components. It should be noted that the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Reference Figure 1-Figure 3 The embodiment of the present invention proposes a through-channel test bench, which includes a base 1. The upper end of the base 1 is fixedly connected to two groups of steel materials 2. A group of hydraulic cylinders 3 is installed above each group of steel materials 2. An annular seat 4 is installed above each group of hydraulic cylinders 3. Several horizontal Hooke's hinges 5 are installed at the lower end of the annular seat 4 and the upper end of the steel materials 2. The horizontal Hooke's hinges 5 and the hydraulic cylinders 3 correspond to each other. The horizontal Hooke's hinges 5 and the annular seat 4, as well as the horizontal Hooke's hinges 5 and the steel materials 2, are connected via several connectors 6. A gear ring 7 is screwed onto the inner side of the annular seat 4. The lower end of the annular seat 4 is fixedly connected to a servo motor 8. The output end of the servo motor 8 extends to the inner side of the gear ring 7 and is fixedly connected to a gear 9. The gear 9 and the gear ring 7 are engaged with each other. The upper end of the gear ring 7 is fixedly connected to a frame 10. A through-channel body 11 is installed between the two groups of frames 10.

[0042] The movement of the vehicle while driving is simulated by the telescopic coordination of each hydraulic cylinder 3, and the rotation of the gear 9 is pulled by the servo motor 8, and the gear 9 pulls the gear ring 7 to rotate, and then the frame 10 is pulled to rotate, so as to simulate the movement of the vehicle while turning, thereby realizing a true simulation of the vehicle driving, thereby testing the through-tunnel body 11, ensuring the accuracy of the test of the through-tunnel body 11, and through the installation of the connecting piece 6, the stability of the connection between the horizontal Hooke's hinge 5 and the annular seat 4 and the steel 2 can be ensured to prevent the vibration generated during the test from causing the disintegration of the horizontal Hooke's hinge 5, thereby ensuring the normal test of the device.

[0043] Reference Figure 1 and Figure 3 An inclined ladder 12 is welded on the side of the frame 10 to facilitate the staff to go up to the frame 10 to perform related operations.

[0044] Reference Figures 4-10 Since the horizontal Hooke's hinge 5 and the annular seat 4 as well as the horizontal Hooke's hinge 5 and the steel 2 are connected via a plurality of connectors 6, the present embodiment takes the horizontal Hooke's hinge 5 and the annular seat 4 as an example for detailed description. The connector 6 includes a cylindrical groove 639 reserved on the horizontal Hooke's hinge 5 and the annular seat 4. A threaded opening is reserved on the inner circumference of the cylindrical groove 639. The cylindrical groove 639 on the horizontal Hooke's hinge 5 passes through the two vertical walls of the horizontal Hooke's hinge 5. The upper end of the cylindrical groove 639 on the annular seat 4 is connected to a circular opening 640. The diameter of the circular opening 640 is larger than the diameter of the cylindrical groove 639.

[0045] The thread in the columnar groove 639 is connected to the lead screw 61, and the lower end of the lead screw 61 is provided with a polygonal column 62, and the lower end of the polygonal column 62 is reserved with a prism opening 63;

[0046] The upper end of the lead screw 61 is provided with a connecting unit and a vertical variable unit;

[0047] A stop unit for stopping the coupling unit is installed in the prism opening 63;

[0048] The upper end of the prism mouth 63 is provided with an inlay unit for stopping the vertical variable unit;

[0049] The coupling unit includes a connecting cylinder A64 mounted on the upper end of the lead screw 61. The upper end of the connecting cylinder A64 is fixedly connected to the connecting cylinder B65. The outer diameter of the connecting cylinder A64 is smaller than the inner diameter of the connecting cylinder B65. The inner surface of the connecting cylinder A64 is fixedly connected to the blocking platform C630. The upper end of the blocking platform C630 is fixedly connected to the elastic member C636. The side of the elastic member C636 farther from the blocking platform C630 is fixedly connected to the second adjustable platform 631. The adjustable platform 631 is located inside the connecting cylinder B65.

[0050] The variable platform 2 631 includes a conical end A632, a rod body C633 and a conical end B634. The rod body C633 is located between the conical end A632 and the conical end B634. The outer surfaces of the conical end A632, the rod body C633 and the conical end B634 form a ring-shaped opening. A steel ball 635 is installed in the ring-shaped opening. A through-opening 66 is reserved on the circumference of the connecting tube B65. The steel ball 635 and the through-opening 66 cooperate with each other. The lower end of the variable platform 2 631 is fixedly connected to the connecting rod 68. The side of the connecting rod 68 farther from the variable platform 2 631 is passed through the middle of the blocking platform C630. When one side of the prism disassembly rod 638 is inserted into the inside of the prism opening 63, the user rotates the prism disassembly rod 638 and can then re-pull the polygonal prism 62 and the lead screw 61 to rotate, thereby achieving the horizontal Hooke's hinge 5 and the annular The purpose of connecting the seat 4 is that after the connection is completed, the user first rotates the variable platform 1 614 to separate the threaded end 612 on one side of the rotating rod 616 and the connecting port 620 from each other, and then removes the rotating rod 616 from the prism port 63, and then cancels the stop between the inner cylinder 67 and the connecting rod 68. When the stop between the inner cylinder 67 and the connecting rod 68 is canceled, the elastic member C636 tightened in the connecting cylinder A64 immediately returns to its original position, and then the variable platform 2 631 can be pressed toward the upper end of the connecting cylinder B65. With the change of the variable platform 2 631, the steel ball 635 in the storage chamber 637 can be pushed out from the through port 66, and then the radial span of the connecting cylinder B65 is extended, and then the screw 61 can be prevented from changing due to shaking, thereby ensuring the connection function of the screw 61.

[0051] A storage chamber 637 is reserved on the inner circumference of the connecting tube B65, the outer surface of the steel ball 635 and the inner surface of the storage chamber 637 fit together, and the storage chamber 637 and the through-port 66 are connected to each other.

[0052] The vertical variable unit includes a carrier frame 629 fixedly connected to the lower end of the connecting tube A64, an elastic member B628 fixedly connected to the carrier frame 629, an assembly chamber 617 is reserved inside the lead screw 61, the assembly chamber 617 and the prism mouth 63 are connected to each other, and a blocking platform B626 is fixedly connected to the inner circumference of the assembly chamber 617, and the side of the elastic member B628 farther from the carrier frame 629 is fixedly connected to the upper wall surface of the blocking platform B626, and the side of the connecting tube A64 farther from the connecting tube B65 is inside the assembly chamber 617, and one side of the connecting tube A64 is movably connected to the assembly chamber 617, and the lower end of the blocking platform C630 is fixedly connected to the inner tube 67, and one side of the connecting rod 68 passes through the inside of the inner tube 67, and the axis of the inner tube 67 coincides with the axis of the connecting rod 68, A cylindrical opening D627 is reserved in the middle of the partition B626, and the inner tube 67 passes through the inside of the cylindrical opening D627. When the prism disassembly rod 638 in the prism opening 63 is removed, the pressure on the lower end of the inner tube 67 is immediately eliminated, so the elastic member B628 fixed to the upper end of the blocking platform B626 in the extended state immediately returns to normal, and then can pull the connecting tube A64 to move downward. During the period of pulling the connecting tube A64 downward, the steel ball 635 moves downward with the connecting tube B65 until the steel ball 635 is pressed against the lower wall surface inside the circular opening 640, thereby preventing the existence of a variable gap between the steel ball 635 and the outer surface of the upper end of the annular seat 4, thereby further strengthening the stable connection function of this connecting member 6.

[0053] The inner circumference of the assembly chamber 617 is fixedly connected to a blocking platform A624, and a cylindrical opening C625 is reserved in the center of the blocking platform A624. One side of the inner cylinder 67 passes through the inside of the cylindrical opening C625. The cylindrical opening C625 can ensure the stability of the inner cylinder 67 during vertical changes, thereby achieving excellent guiding and restraining purposes.

[0054] The splicing unit includes a rotating mouth 69 reserved at the upper end of the prism mouth 63, and rotating bars are screwed on both sides of the inner surface of the rotating mouth 69. One side of the rotating bar is fixedly connected to the rotating column 610, and the outer circumference of the rotating column 610 is fixedly connected to the splicing block 611. An splicing interface 619 is reserved on the outer circumference of the inner cylinder 67. One side of the splicing block 611 is in the splicing interface 619, and the inner circumference of the assembly chamber 617 is fixedly connected to the elastic part A618. The side of the elastic part A618 farther from the inner circumference of the assembly chamber 617 is fixedly connected to the outer surface of one side of the splicing block 611. When the connecting member 6 is in the initial state where the connection is not performed, one side of the splicing block 611 is spliced in the splicing interface 619, thereby preventing the elastic part B628 in the extended state from returning to its position and pushing the inner cylinder 67 downward.

[0055] The stop unit includes a columnar opening B622 reserved in the polygonal column 62, and a rotating rod 616 is screwed into the columnar opening B622. The rotating rod 616 includes a rod body A613 and a threaded end 612. The outer peripheral surface of the threaded end 612 is reserved for a threaded opening. The connecting rod 68 is reserved for a connecting opening 620. The inner surface of the connecting opening 620 is reserved for a threaded opening. The threaded end 612 and the connecting opening 620 are connected to each other through the threaded opening. A columnar opening A621 is reserved on the inner cylinder 67. The rod body A613 penetrates from the inside of the columnar opening A621. A changing opening 623 is reserved in the polygonal prism 62, and the changing opening 623 and the prism opening 63 are connected to each other. The rotating rod 616 is in the changing opening 623, and a groove 615 is reserved on one side of the polygonal prism 62, and the groove 615 and the changing opening 623 are connected to each other. When the connection is completed, the user first rotates the changing table 614 to separate the thread end 612 and the connecting opening 620 on one side of the rotating rod 616 from each other, and then removes the rotating rod 616 from the prism opening 63, and then cancels the connection between the inner cylinder 67 and the connecting rod 68.

[0056] The rotating rod 616 is fixedly connected to the variable platform 1 614 on the outer side of the polygonal column 62. The outer surface of the variable platform 1 614 is reserved with a plurality of notches along its axis so that the user can easily rotate the rotating rod 616 to separate the thread end 612 and the connecting port 620 from each other.

[0057] Both the horizontal Hooke's hinge 5 and the annular seat 4 are provided with a cylindrical groove 639, and a threaded opening is reserved on the inner circumference of the cylindrical groove 639. The cylindrical groove 639 on the horizontal Hooke's hinge 5 passes through the two vertical walls of the horizontal Hooke's hinge 5. The upper end of the cylindrical groove 639 on the annular seat 4 is connected to a circular opening 640, and the diameter of the circular opening 640 is larger than the diameter of the cylindrical groove 639.

[0058] When the connecting piece 6 is used to connect the horizontal Hooke's hinge 5 and the annular seat 4 and the horizontal Hooke's hinge 5 and the steel material 2, the user can first twist the polygonal column 62 when connecting the horizontal Hooke's hinge 5 and the annular seat 4 through the connecting piece 6. When the polygonal column 62 rotates, the lead screw 61 can be pulled to rotate together. The lead screw 61 is threadedly connected to the cylindrical groove 639 reserved in the annular seat 4. The cylindrical groove 639 has a corresponding threaded opening. When the user twists the polygonal column 62, the threaded end 612 on the rotating rod 616 is threadedly connected to the connecting opening 620 on the connecting rod 68, thereby ensuring that the inner cylinder 67 and the connecting rod 68 always maintain stability during the rotation of the lead screw 61.

[0059] When the user can no longer twist the connector 6, the user can insert one side of the outer prism disassembly rod 638 into the prism opening 63 and press the prism disassembly rod 638 upward to make its upper end fit with the upper wall of the prism opening 63. During the upward pressure on the prism disassembly rod 638, the pressure of the prism disassembly rod 638 is transmitted to the lower end of the inner cylinder 67 and the connector rod 68, and then the inner cylinder 67 and the connector rod 68 can be pressed to a point where the upper wall is flush with the lower wall of the prism opening 63. While the connector rod 68 is under pressure, the rotating rod 616 moves upward together. The inner cylinder 67 and the connecting rod 68 are always connected. During the upward pressure of the inner cylinder 67, the splicing block 611 can be pushed open, allowing the splicing block 611 to move away from the splicing interface 619, thereby releasing some of the splicing block 611's stop on the inner cylinder 67. After the splicing block 611 is pushed open, the elastic member A618 in the extended state immediately returns to its normal state, and then can pull the splicing block 611 toward the inner surface of the assembly chamber 617. At this time, the edge of the splicing block 611 is separated from the outer circumference of the inner cylinder 67, thereby ensuring the vertical movement of the inner cylinder 67.

[0060] After one side of the prism disassembling rod 638 is inserted into the inside of the prism opening 63, the user rotates the prism disassembling rod 638 and can then re-pull the multi-prism 62 and the screw 61 to rotate, thereby achieving the purpose of connecting the horizontal Hook's hinge 5 with the annular seat 4. When the connection is completed, the user first rotates the variable stage 614 to separate the threaded end 612 of the rotating rod 616 and the connecting opening 620 from each other, and then removes the rotating rod 616 from the prism opening 63, thereby canceling the space between the inner cylinder 67 and the connecting rod 68. When the stop between the inner cylinder 67 and the connecting rod 68 is cancelled, the elastic member C636 compressed in the connecting cylinder A64 immediately returns to its original position, and then presses the second variable stage 631 toward the upper end of the connecting cylinder B65. As the variable stage 631 moves, the steel ball 635 in the storage chamber 637 is pushed out from the through-hole 66, thereby extending the radial span of the connecting cylinder B65. This can prevent the screw 61 from shaking and causing movement, thereby ensuring the connection function of the screw 61.

[0061] Then, the prism disassembly rod 638 inside the prism mouth 63 is removed. At this moment, the compressive effect of the lower end of the inner tube 67 is immediately eliminated, so the elastic member B628 fixed to the upper end of the blocking platform B626 in the extended state immediately returns to normal, and then the connecting tube A64 can be pulled to move downward. During the period of pulling the connecting tube A64 downward, the steel ball 635 moves downward with the connecting tube B65 until the steel ball 635 is pressed against the lower wall surface inside the circular mouth 640, thereby preventing a gap from changing between the steel ball 635 and the outer surface of the upper end of the annular seat 4, thereby further strengthening the stable connection function of this connecting member 6.

[0062] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. The gangway test bench is characterized by: The invention comprises a base, the upper end of which is fixedly connected to two groups of steel, a group of hydraulic cylinders is installed above each group of steel, an annular seat is installed above each group of hydraulic cylinders, a plurality of horizontal Hooker hinges are installed on the lower end of the annular seat and the upper end of the steel, the horizontal Hooker hinges and the annular seat, as well as the horizontal Hooker hinges and the steel, are connected via a plurality of connectors, a gear ring is screwed onto the inner side of the annular seat, the lower end of the annular seat is fixedly connected to a servo motor, the output end of the servo motor extends to the inner side of the gear ring and is fixedly connected to a gear, the gear and the gear ring are engaged with each other, the upper end of the gear ring is fixedly connected to a frame, and a through-channel body is installed between the two groups of frames; The connecting piece includes a cylindrical groove reserved on the horizontal Hook's hinge and the annular seat, a threaded opening is reserved on the inner circumference of the cylindrical groove, and the upper end of the cylindrical groove on the annular seat is connected to a circular opening; The thread in the columnar groove is connected to the lead screw, and a polygonal column is installed at the lower end of the lead screw, and a prism mouth is reserved at the lower end of the polygonal column; The upper end of the screw is equipped with a connecting unit and a vertical variable unit; A stop unit for stopping the connecting unit is installed in the prism mouth; An inlay unit for stopping the vertical variable unit is installed at the upper end of the prism mouth; The coupling unit includes a connecting tube A mounted on the upper end of the lead screw. The upper end of the connecting tube A is fixedly connected to the connecting tube B. The outer diameter of the connecting tube A is smaller than the inner diameter of the connecting tube B. The inner surface of the connecting tube A is fixedly connected to the blocking platform C. The upper end of the blocking platform C is fixedly connected to the elastic member C. The side of the elastic member C farther from the blocking platform C is fixedly connected to the variable platform 2. The variable platform 2 is located inside the connecting tube B. The second variable platform includes a conical end A, a rod C, and a conical end B. The rod C is located between the conical ends A and B. The conical end A, the rod C, and the outer surfaces of the conical end B form a ring-shaped opening. A steel ball is installed in the ring-shaped opening. A through-hole is reserved on the circumference of the connecting tube B. The steel ball and the through-hole cooperate with each other. The lower end of the variable platform is fixedly connected to the connecting rod. The side of the connecting rod farther from the variable platform is passed through the center of the blocking platform C. The lower end of the blocking platform C is fixedly connected to the inner tube. The vertical adjustment unit includes a carrier fixedly connected to the lower end of the connecting tube A. The carrier is fixedly connected to the elastic member B. The inside of the screw is reserved for an assembly chamber, which is connected to the prism opening. The inner periphery of the assembly chamber is fixedly connected to the blocking platform B. The side of the elastic member B farther from the carrier is fixedly connected to the upper wall of the blocking platform B. The stop unit includes a cylindrical opening B reserved inside the polygonal prism, and a rotating rod is screwed into the cylindrical opening B. The rotating rod includes a rod body A and a threaded end. A threaded end is reserved on the outer periphery of the threaded end, a connecting opening is reserved on the connecting rod, and a threaded end is reserved on the inner surface of the connecting opening. The threaded end and the connecting opening are threadedly connected to each other via the threaded end. A cylindrical opening A is reserved on the inner cylinder, and one side of the rod body A passes through the inside of the cylindrical opening A. A variable opening is reserved in the polygonal prism, and the variable opening and the prism opening are connected to each other. The rotating rod is in the variable opening, and a groove is reserved on one side of the polygonal prism, and the groove and the variable opening are connected to each other.

2. The gangway test bench according to claim 1, characterized in that: An inclined ladder is welded to the side of the frame.

3. The gangway test bench according to claim 1, characterized in that: A storage chamber is reserved on the inner circumference of the connecting tube B, the outer surface of the steel ball and the inner surface of the storage chamber fit together, and the storage chamber and the through port are connected to each other.

4. The gangway test bench according to claim 3, characterized in that: The side of the connecting cylinder A farther from the connecting cylinder B is located inside the assembly chamber, and one side of the connecting cylinder A is movably connected to the assembly chamber.

5. The gangway test bench according to claim 3, characterized in that: One side of the connecting rod passes through the inside of the inner cylinder, the axis of the inner cylinder coincides with the axis of the connecting rod, a cylindrical opening D is reserved in the center of the blocking platform B, and one side of the inner cylinder passes through the inside of the cylindrical opening D.

6. The gangway test bench according to claim 5, characterized in that: The inner circumference of the assembly chamber is fixedly connected to a blocking platform A, a cylindrical opening C is reserved in the middle of the blocking platform A, and one side of the inner tube passes through the inside of the cylindrical opening C.

7. The gangway test bench according to claim 6, characterized in that: The splicing unit includes a rotating mouth reserved at the upper end of the prism mouth, and rotating bars are screwed on both sides of the inner surface of the rotating mouth. One side of the rotating bar is fixedly connected to the rotating column, and the outer circumference of the rotating column is fixedly connected to the splicing block. An splicing interface is reserved on the outer circumference of the inner tube, and one side of the splicing block is located in the splicing interface.

8. The gangway test bench according to claim 7, characterized in that: The inner peripheral surface of the assembly chamber is fixedly connected with an elastic member A, and the side of the elastic member A farther from the inner peripheral surface of the assembly chamber is fixedly connected to the outer surface of one side of the embedding block.

9. The gangway test bench according to claim 1, characterized in that: The rotating rod is fixedly connected to the variable platform one at one side of the multi-prism, and a plurality of notches arranged along the axis of the variable platform one are reserved on the outer peripheral surface of the variable platform one.

Images