A main torch system for a large-scale sports event

Abstract

The present invention relates to a main torch system for a large-scale sports event, comprising: a torch fixing device, a pressure trolley device, a posture adjustment device, and a ground device; the pressure trolley device suspends the posture adjustment device and is capable of moving on a wire rope under the action of traction; the posture adjustment device lifts the torch fixing device, which is at an acute angle to the horizontal plane, to a set height through a hoisting device and a traction wire rope, and completes rotation adjustment and pitch adjustment; the ground device supports the torch fixing device on the ground and realizes angle adjustment between the torch fixing device and the ground through a rotating shaft connecting rod mechanism. The present invention can lift the torch fixing device carrying the torch off the ground and suspend it above the venue by a lifting method, thereby reducing the space occupied on the ground and realizing various artistic display forms.

Description

Technical Field

[0001] The invention belongs to the technical field of performance devices, and in particular relates to a main torch system. Background Art

[0002] The cauldron lighting ceremony plays a significant role in the opening and closing ceremonies of major sporting events. Conventional cauldrons are typically fixed at a specific location within the opening ceremony venue, where they are lit by a torchbearer. While the cauldron creates a certain aesthetic appeal when lit, its bulky size occupies considerable space, making it difficult to incorporate diverse artistic expressions. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: the present invention provides a main torch system for a large-scale sports event, which can lift the torch fixing device carrying the torch off the ground and suspend it above the venue, reducing the space occupied on the ground while also realizing various artistic display forms.

[0004] The technical solution adopted by the present invention is: a main torch system for a large-scale sports event, comprising: a torch fixing device, a pressure trolley device, a posture adjustment device and a ground device;

[0005] The pressure trolley is equipped with a suspension posture adjustment device and can move on the wire rope under the action of traction;

[0006] The attitude adjustment device uses a winch device and a traction wire rope to lift the torch fixture, which is at an acute angle to the horizontal plane, to a set height, and completes slewing and pitching adjustments;

[0007] The ground device supports the torch fixing device on the ground and realizes the angle adjustment between the torch fixing device and the horizontal plane through the rotating shaft connecting rod mechanism.

[0008] Furthermore, the posture adjustment device includes an upper structure, a rotation drive device, an upper control box, a lower structure, a slewing bearing, a first hoisting device, a second hoisting device, a third hoisting device, an air supply device and a lower control box;

[0009] The upper structure includes an upper platform and a wire take-up frame. The upper platform is connected to the pressure trolley device through symmetrically installed upper lifting ears and wire ropes. The upper structure is equipped with a wire take-up frame to store the cables. The wire take-up frame is symmetrically provided with a righting structure, which is connected to the pressure trolley device through a righting rod. The upper structure is equipped with a rotary drive device and an upper control box.

[0010] The lower structure is connected to the upper structure through a slewing bearing, and the slewing bearing enables relative rotational movement between the upper structure and the lower structure; the gear on the main shaft of the rotary drive device meshes with the gear ring on the slewing bearing to drive the lower structure to rotate; the upper control box controls the rotary drive device.

[0011] A first hoisting device, a second hoisting device, a third hoisting device, a gas supply device, and a lower control box are installed on the lower structure.

[0012] The first hoisting device controls the synchronous retraction and extension of two first traction steel wires for hoisting the torch fixing device, and the second hoisting device controls the synchronous retraction and extension of two second traction steel wires for hoisting the torch fixing device; the third hoisting device controls the synchronous retraction and extension of the cable and the gas pipe; the gas supply device is connected to the gas pipe, the lower control box is connected to the cable, and the lower control box controls the electric equipment on the lower structure.

[0013] Further, the attitude adjustment device further includes a fixed pulley device, a movable pulley device, and a pulley translation device.

[0014] The movable pulley device is symmetrically arranged on both sides of the long side of the square frame in the middle of the lower structure, and guides the first traction steel wire through the pulley respectively, so that the first traction steel wire vertically pulls the torch fixing device; the fixed pulley device is symmetrically arranged on both sides of the other long side of the square frame in the middle of the lower structure, and guides the second traction steel wire through the pulley respectively, so that the second traction steel wire vertically pulls the torch fixing device; the pulley translation device is arranged on the short sides of both sides of the square frame in the middle of the lower structure, and controls the movable pulley device to move along the guide rail towards and away from the fixed pulley device.

[0015] Two first traction steel wires and two second traction steel wires are respectively symmetrically connected to the torch fixing device. During the hoisting process, when the torch fixing device is adjusted to the fully vertical state, the movable pulley device translates, so that the force application direction of the first traction steel wire is collinear with the center of gravity and the centroid of the torch fixing device, so that the second traction steel wire no longer bears the tension after the torch fixing device is completely vertical.

[0016] Further, the first hoisting device includes a first wire winding shaft, a first speed reducer, and a first motor. The first wire winding shaft has two wire winding shaft parts respectively winding the first traction steel wire, and respectively controls the synchronous retraction and extension of the two first traction steel wires. The two ends of the first wire winding shaft are respectively connected to the first speed reducer, the first speed reducer is connected to the first motor, and the first motor drives the first wire winding shaft to rotate through the first speed reducer.

[0017] Further, the second hoisting device includes a second wire winding shaft, a second speed reducer, and a second motor. The second wire winding shaft has two wire winding shaft parts respectively winding the second traction steel wire ropes, which respectively control the synchronous retraction and extension of the two second traction steel wire ropes. The two ends of the second wire winding shaft are respectively connected to the second speed reducer, and the second speed reducer is connected to the second motor. The second motor drives the second wire winding shaft to rotate through the second speed reducer.

[0018] Further, two groups of the third hoisting devices are symmetrically arranged, and each includes a cable drum, a gas pipe drum, a gear box, and a third motor. The cable drum and the gas pipe drum are both rotatably installed on the lower structure body. The ends of the cable drum and the gas pipe drum are jointly connected to the gear box, and the gear box is connected to the third motor. By driving the gear box with the third motor, the cable drum and the gas pipe drum are driven to rotate synchronously, so as to realize the synchronous retraction and extension of the gas pipe and the cable.

[0019] Further, the ground device includes a platform, a step mechanism, a first lifting device, a second lifting device, a third lifting device, and a fixing frame;

[0020] The platform is installed in the venue pit; the step mechanism, the first lifting device, the second lifting device, and the third lifting device are installed on the platform. The installation points of the third lifting device, the second lifting device, and the step mechanism on the platform are distributed in sequence from front to back, and the installation position of the third lifting device is at the front end; the end of the first lifting device is rotatably connected to the middle part of the step mechanism, and the ends of the second lifting device and the third lifting device are respectively rotatably connected to the fixing frame. The third lifting device is vertically arranged, and the second lifting device is obliquely arranged;

[0021] A chain transmission device is arranged on the fixing frame, and the chain transmission device is sequentially connected to a speed reduction box and a transmission motor; the transmission motor provides power for the chain transmission device. A hook is arranged on the chain of the chain transmission device, and a connecting shaft for hooking with the hook is arranged on the torch fixing device; the torch fixing device is pre-placed on the fixing frame, and the cooperation between the connecting shaft and the hook avoids downward sliding; after the fixing frame is gradually lifted to the maximum angle, the transmission motor drives the chain transmission device to operate, so that the hook drives the torch fixing device to move upward along the surface of the fixing frame, and at the same time, in cooperation with the control of the traction steel wire rope by the hoisting device, the torch fixing device is separated from the fixing frame and is lifted.

[0022] Further, the first lifting device, the second lifting device, and the third lifting device are electric push rod devices, hydraulic cylinder devices, or gear rack devices; the stroke of the second lifting device is greater than the stroke of the third lifting device, so as to realize the pitching control of the fixing frame from the horizontal to the included angle α, and α is 30° - 60°.

[0023] Furthermore, the torch fixing device is used to fix the main torch, and a first traction lug is provided on both sides of the upper half thereof, and a second traction lug is provided on both sides of the lower half thereof, and the center thereof is hollowed out and provided with a torch seat; the first traction lug is used to connect the first traction wire rope, and the second traction lug is used to connect the second traction wire rope;

[0024] The torch holder is used to fix the main flare. The torch holder is provided with a gas interface for connecting the gas pipe and a cable interface for connecting the cable. When the main torch is placed on the torch holder, the gas interface is connected to the air inlet on the main torch to realize the delivery of gas, and the cable interface is connected to the electrical port on the main torch to realize electrical control.

[0025] Furthermore, when the pit of the venue is opened, the second and third lifting devices are operated to lift the fixing frame and the torch fixing device together to a set angle with the ground; the first lifting device is controlled to work to lift the step mechanism to the height leading to the ignition position; the pressure trolley device is moved to just above the pit; the torch is inserted into the torch holder, and the first and second traction wire ropes are connected to the corresponding lifting ears on the torch fixing device; the transmission motor drives the hook on the chain transmission device to move upward along the surface of the fixing frame, driving the torch fixing device to continue to move upward, and gradually detached from the fixing frame under the lifting of the first and second hoisting devices;

[0026] During the lifting process, the mobile pulley device moves until the torch fixing device is completely vertical, and finally the ground device is reset and the pit cover is closed.

[0027] The advantages of the present invention compared with the prior art are:

[0028] 1. The present invention adopts a wire rope trolley device and a posture adjustment device to lift the torch fixing device with the torch fixed to the air above the venue, thereby avoiding the trouble of arranging the main torch system on the ground and reducing the ground space occupied; after the ignition is completed, the ground device is re-stored into the pit, so that the ground of the venue can carry out the ground activities in a more complete way.

[0029] 2. The power devices in the hoisting device of the present invention are provided with two sets, which can avoid downtime caused by failure of one set, thereby improving the reliability of the device.

[0030] 3. The posture adjustment device of the present invention uses a movable pulley device to adjust the force point position of the traction wire rope, so that the torch fixing device is more stable when adjusting to a fully vertical state, avoiding large shaking.

[0031] 4. The attitude adjustment device of the present invention adopts a righting structure to reduce the deflection torque generated when the lower structure rotates, so that the entire attitude adjustment device can be more stable in the air.

[0032] 5. The ground device of the present invention can be stored in a pit in the unstarted state and after ignition is completed. During the ignition stage, the fixing frame and the step mechanism are gradually lifted up, thereby realizing the lifting of the torch fixing device.

[0033] 6. The ground device of the present invention can drive the torch fixing device to move upward for a certain distance before it is completely lifted, thereby reducing the large shaking when the two are separated, making the entire lifting operation more stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a left side view of the structure of an embodiment of the present invention;

[0035] Figure 2 It is a left side view of the structure of the posture adjustment device according to an embodiment of the present invention;

[0036] Figure 3 A front view of the structure of the posture adjustment device according to an embodiment of the present invention;

[0037] Figure 4 A structural perspective diagram of a first hoisting device and a second hoisting device in a posture adjustment device according to an embodiment of the present invention;

[0038] Figure 5 This is a left side view of the structure of the ground device in an embodiment of the present invention;

[0039] Figure 6 for Figure 5 A partial enlarged view of point A in the middle;

[0040] Figure 7 This is a front view of the structure of the torch fixing device in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0042] like Figures 1 to 7 As shown, a main torch system for a large-scale sports event includes: a torch fixing device 30, a pressure trolley device 100, a posture adjustment device 200 and a ground device 300.

[0043] The pressure trolley device 100 is used to suspend the posture adjustment device 200 and can move on the wire rope under the action of traction.

[0044] like Figures 2 to 4As shown, the posture adjustment device 200 is used to lift the torch fixing device 30 at a certain acute angle to the horizontal plane to a certain height through the first traction wire rope 29 and the second traction wire rope 32 and complete the rotation adjustment and pitch adjustment. Specifically, it includes an upper structure 2 and a lower structure 4.

[0045] The upper structure 2 is provided with four upper lifting lugs 2-1, and the four upper lifting lugs 2-1 are respectively connected to the four lifting lugs on the pressure trolley device 100 through a suspension wire rope 31. The lower structure 4 is connected to the upper structure 2 through a slewing bearing 3, so that the two can produce relative rotational motion. A rotation drive device 12 and an upper control box are installed on the upper structure 2. The gear on the main shaft of the rotation drive device 12 engages with the ring gear on the slewing bearing 3 to drive the lower structure 4 to rotate. The upper control box is electrically connected to the electric equipment on the upper structure 2.

[0046] To accommodate the upper wire rope, a take-up frame 1 is mounted on the upper structure 2. This frame is equipped with four righting structures 1-1, which are connected to the pressure trolley 100 via righting rods. Because the upper structure 2 is rigidly connected to the pressure trolley 100 via the four righting rods, the rotational torque generated by the lower structure 4 driving the torch fixture 20 does not cause the entire posture adjustment device 200 to rotate, improving overall stability.

[0047] The lower structure 4 is equipped with a first hoisting device 5, a second hoisting device 6, a third hoisting device 33, a fixed pulley device 8, a movable pulley device 7, a pulley translation device 11, an air supply device and a lower control box.

[0048] The first hoisting device 5 controls the synchronous retraction and extension of the first traction wire rope 29, and the second hoisting device 6 controls the synchronous retraction and extension of the second traction wire rope 32. Specifically, the first hoisting device 5 has a first winding shaft 5-1, which has two winding shaft portions for winding the first traction wire ropes 29, respectively, to control the synchronous retraction and extension of the two first traction wire ropes 29. Both ends of the first winding shaft 5-1 are connected in sequence to a first reducer 5-2 and a first motor 5-3.

[0049] Similarly, the second hoisting device 6 includes a second winding shaft 6-1, which has two winding shaft portions, each of which is wound around the second traction wire rope 32. These two shaft portions control the synchronous retraction and release of the two second traction wire ropes 32. A second speed reducer 6-2 and a second motor 6-3 are connected to each end of the second winding shaft 6-1. The first and second hoisting devices 5 and 6 are equipped with two power units to ensure normal operation of the equipment.

[0050] It should be noted that the power of the first hoisting device 5 is greater than the power of the second hoisting device 6. When the torch fixture 30 is not in a fully vertical position, the first traction wire rope 29 and the second traction wire rope 32 jointly share the weight of the torch fixture 30. After the torch fixture 30 is in a fully vertical position, the first traction wire rope 29 fully supports the weight of the torch fixture 30, and the second traction wire rope 32 no longer bears tension.

[0051] The third hoisting device 33 controls the synchronous retraction and extension of the cable and gas pipe. Two sets of third hoisting devices 33 are symmetrically arranged. They include a cable drum 9, a gas pipe drum 10, a gearbox 13, and a third motor 14. Both the cable drum 9 and the gas pipe drum 10 are rotatably mounted on the lower structure 4. Their ends are connected to the gearbox 13, which in turn is connected to the third motor 14. The third motor 14 drives the cable drum 9 and the gas pipe drum 10 to rotate synchronously, ensuring the synchronous retraction and extension of the gas pipe and cable.

[0052] The movable pulley assembly 7 is symmetrically arranged with two sets, one for guiding the first traction wire rope 29. The fixed pulley assembly 8 is equipped with two sets, one for guiding the second traction wire rope 32. The pulley translation device 11 controls the translation of the movable pulley assembly 7. The movable pulley assembly 7 is installed in a translational manner. When the torch fixture 30 is adjusted to a fully vertical position, the force direction of the first traction wire rope 29 is collinear with the center of gravity and centroid of the torch fixture 30, thereby ensuring stability during adjustment. This also ensures that the second traction wire rope 32 is no longer subjected to tension after the torch fixture 30 is fully vertical. The movable pulley assembly 7 uses a motor-screw assembly. The motor drives the screw, which drives the screw nut and slide along the axis, achieving translation of the movable pulley. It should be noted that the first traction wire rope 29 and the second traction wire rope 32 are guided horizontally through the pulley assembly, and then vertically output through the movable pulley and fixed pulley conductors. The pulley assembly guidance is existing technology and will not be described in detail.

[0053] The gas supply device is connected to the gas pipe, and the lower control box is connected to the cable. The lower control box is electrically connected to the electric device on the lower structure 4.

[0054] like Figure 5 and 6As shown, the ground device 300 includes a platform 15, and the entire platform 15 is installed in the venue pit. A step mechanism 16, a first lifting device 17, a second lifting device 20, and a third lifting device 23 are installed on the platform 15. The first lifting device 17 is connected to the step mechanism 16, and the second lifting device 20 and the third lifting device 23 are jointly connected to a fixing frame 25. The third lifting device 23 is vertically arranged, and the second lifting device 20 is obliquely arranged. The step mechanism 16, the second lifting device 20, and the third lifting device 23 are arranged in sequence from the rear to the front.

[0055] The fixing method of the torch fixing device 30 on the fixing frame 25 is separable connection. Specifically: A chain transmission device 26, a reduction gearbox 34, and a transmission motor 24 are sequentially arranged on the fixing frame 25. The transmission motor 24 provides power for the chain transmission device 26. A hook 28 is arranged on the chain of the chain transmission device 26, and a connecting shaft 30-1 for hooking with the hook 28 is arranged on the torch fixing device 30. The torch fixing device 30 is pre-placed on the fixing frame 25, and its downward sliding is prevented through the cooperation of the connecting shaft 30-1 and the hook 28. After the fixing frame 25 is gradually lifted to the maximum angle, the transmission motor 24 drives the chain transmission device 26 to operate, so that the hook 28 drives the torch fixing device 30 to move upward along the surface of the fixing frame 25. At the same time, in cooperation with the control of the traction steel wire rope by the winch device, the torch fixing device 30 is separated from the fixing frame 25 and is hoisted.

[0056] The first lifting device 17, the second lifting device 20, and the third lifting device 23 are electric push rod devices, hydraulic cylinder devices, or gear rack devices.

[0057] Specifically, the first lifting device 17 is a hydraulic cylinder.

[0058] The second lifting device 20 is a gear rack device, including a second mounting seat, a second slide rail, a second rack 19, a second gear 18, and a second lifting motor. The second mounting seat is hingedly installed on the platform 15. The second gear 18 is installed on the main shaft of the second lifting motor. The second slide rail is installed on the second mounting seat. The second rack 19 is installed on the sliding rod of the second slide rail. The second rack 19 meshes with the second gear 18. The top of the sliding rod of the second slide rail is hinged to the fixing seat 25. The second slide rail is telescoped by the power provided by the second lifting motor.

[0059] Similarly, the third lifting device 23 is a rack and pinion device, including a third mounting base, a third slide rail, a third rack 22, a third gear 21 and a third lifting motor. The third mounting base is fixedly installed on the platform 15. The third gear 21 is installed on the main shaft of the third lifting motor. The third slide rail is installed on the third mounting base. The third rack 22 is installed on the sliding rod of the third slide rail. The third rack 22 meshes with the third gear 21. The top of the sliding rod of the third slide rail is hinged to the fixing seat 25. The third rack 22 is telescoped by the power provided by the third lifting motor. The telescoping distance of the second slide rail is greater than that of the third slide rail, so as to realize the pitching control of the fixing frame 25 from horizontal to the included angle α, where α is 30° - 60°. In this embodiment, the maximum pitching angle of the fixing frame 25 is 45°.

[0060] As Figure 7 shown, the torch fixing device 30 is used to fix the main torch. The torch fixing device 30 is in an overall "snowflake" shape. On both sides of its upper half, a first traction lug 30-2 is respectively arranged. On both sides of its lower half, a second traction lug 30-3 is respectively arranged. Its center is hollowed out and a torch base 30-4 is arranged. The first traction lug 30-2 is used to connect a first traction steel wire rope 29. The second traction lug 30-3 is used to connect a second traction steel wire rope 32.

[0061] The torch base 30-4 is used to fix the main torch. The torch base 30-4 is provided with a gas interface for connecting a gas pipe and a cable interface for connecting a cable. After the main torch is placed on the torch base 30-4, the gas interface is communicated with the air inlet on the main torch to realize the transmission of gas. The cable interface is connected to the electrical port on the main torch to realize electrical control.

[0062] It should be noted that for the powered devices in the present invention, two sets of motors are equipped for the power part to avoid failure and ensure the smooth operation of the whole device.

[0063] The working principle and process of the present invention:

[0064] After the torchbearer holds the torch and arrives at the venue, the cover plate of the pit in the center of the venue is opened. Then the second lifting device 20 and the third lifting device 23 work to lift the fixing frame 25 and the torch fixing device 30 together to a height of 45° with the ground. Then the first lifting device 17 works to lift the step mechanism 16 to the height leading to the ignition position. The pressure reduction trolley device 100 moves to directly above the pit. When the torchbearer climbs to the highest point of the step mechanism 16, the torch is inserted into the torch base 30-4.

[0065] Subsequently, the first towing steel wire rope 29 and the second towing steel wire rope 32 are connected to the corresponding lifting lugs on the torch fixing device 30. Then, the driving motor 24 drives the hook 28 on the chain drive device 26 to move upward along the surface of the fixing frame 25, thereby driving the torch fixing device 30 to continue moving upward by 1-2 m, and then gradually separating from the fixing frame 25 under the lifting of the first hoisting device 5 and the second hoisting device 6.

[0066] During the hoisting process, the moving pulley device 7 gradually moves towards the center and finally moves to the center position. At this time, the torch fixing device 30 is completely vertical. Finally, the ground device 300 resets and the pit cover plate closes. Thus, the entire ignition process ends.

[0067] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, as well as a specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present invention.

[0068] In addition, "first" and "second" are only for the purpose of description, and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0069] Therefore, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0070] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0071] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two elements.

[0072] For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and deformations can be made, and these improvements and deformations should also be regarded as the protection scope of the present invention.

[0074] The parts not detailed in the present invention belong to the well-known technology in the art.

Claims

1. A main torch system for a large-scale sports event, characterized in that, Comprising: A torch fixing device (30), a pressure trolley device (100), an attitude adjusting device (200) and a ground device (300); The pressure trolley device (100) suspends the attitude adjusting device (200) and can move on the wire rope under the action of traction force; The attitude adjusting device (200) hoists the torch fixing device (30) at an acute angle to the horizontal plane to a set height through a winch device and a traction wire rope, and completes slewing adjustment and pitching adjustment; The attitude adjusting device (200) further includes a fixed pulley device (8), a moving pulley device (7), a pulley translation device (11), an upper structure (2), and a lower structure (4); The lower structure (4) is connected to the upper structure (2) through a slewing bearing (3). The moving pulley device (7) is symmetrically arranged on both sides of the long side of the square frame in the middle of the lower structure (4), and guides the first traction wire rope (29) through pulleys respectively, so that the first traction wire rope (29) vertically pulls the torch fixing device (30); The fixed pulley device (8) is symmetrically arranged on both sides of the other long side of the square frame in the middle of the lower structure (4), and guides the second traction wire rope (32) through pulleys respectively, so that the second traction wire rope (32) vertically pulls the torch fixing device (30); The pulley translation device (11) is arranged on the short sides of both sides of the square frame in the middle of the lower structure (4), and controls the moving pulley device (7) to move along the guide rail in a direction close to or away from the fixed pulley device (8); Two first traction wire ropes (29) and two second traction wire ropes (32) are symmetrically connected to the torch fixing device (30) respectively. During the hoisting process, when the torch fixing device (30) is adjusted to the fully vertical state, the moving pulley device (7) translates, so that the force direction of the first traction wire rope (29) is collinear with the center of gravity and the centroid of the torch fixing device (30), so that the second traction wire rope (32) no longer bears the tension after the torch fixing device (30) is fully vertical; The ground device (300) supports the torch fixing device (30) on the ground and realizes the angle adjustment between the torch fixing device (30) and the horizontal plane through a rotating shaft link mechanism; The ground device (300) includes a fixed frame (25); A chain transmission device (26) is arranged on the fixed frame (25), and the chain transmission device (26) is sequentially connected to a reduction box (34) and a drive motor (24); The drive motor (24) provides power for the chain transmission device (26), and a hook (28) is arranged on the chain of the chain transmission device (26), and a connecting shaft (30-1) hooked to the hook (28) is arranged on the torch fixing device (30).

2. The main torch system for a large-scale sports event according to claim 1, characterized in that The attitude adjusting device (200) includes a rotation drive device (12), an upper control box, a slewing bearing (3), a first winch device (5), a second winch device (6), a third winch device (33), a gas supply device and a lower control box; The upper structure (2) includes an upper platform and a wire take-up frame (1), and the upper platform is connected to the pressure trolley device (100) through symmetrically installed upper lifting ears (2-1) and wire ropes (31); the upper structure (2) is equipped with a wire take-up frame (1) to accommodate the energized cable; the wire take-up frame (1) is symmetrically provided with a righting structure (1-1), and the righting structure (1-1) is connected to the pressure trolley device (100) through a righting rod; the upper structure (2) is equipped with a rotation drive device (12) and an upper control box; The slewing bearing (3) generates relative slewing motion between the upper structure (2) and the lower structure (4); the gear on the main shaft of the rotation drive device (12) meshes with the gear ring on the slewing bearing (3), driving the lower structure (4) to rotate; the upper control box controls the rotation drive device (12); A first hoisting device (5), a second hoisting device (6), a third hoisting device (33), an air supply device and a lower control box are installed on the lower structure (4); The first hoisting device (5) controls the synchronous retraction and extension of two first traction steel wires (29) for hoisting the torch fixing device (30); the second hoisting device (6) controls the synchronous retraction and extension of two second traction steel wires (32) for hoisting the torch fixing device (30); and the third hoisting device (33) controls the synchronous retraction and extension of the cables and the gas pipe. The gas supply device is connected to the gas pipe, the lower control box is connected to the cable, and the lower control box controls the electric equipment on the lower structure (4).

3. The main torch system for a large-scale sports event according to claim 2, characterized in that, The first hoisting device (5) comprises a first winding shaft (5-1), a first reducer (5-2) and a first motor (5-3). The first winding shaft (5-1) has two winding shaft parts for winding first traction steel ropes (29) respectively, and respectively controls the synchronous retraction and release of the two first traction steel ropes (29). The two ends of the first winding shaft (5-1) are respectively connected to the first reducer (5-2). The first reducer (5-2) is connected to the first motor (5-3). The first motor (5-3) drives the first winding shaft (5-1) to rotate through the first reducer (5-2).

4. The main torch system for a large-scale sports event according to claim 2, characterized in that, The second hoisting device (6) includes a second winding shaft (6-1), a second reducer (6-2) and a second motor (6-3). The second winding shaft (6-1) has two winding shaft parts for winding the second traction wire ropes (32) respectively, and respectively controls the synchronous retraction and release of the two second traction wire ropes (32). The two ends of the second winding shaft (6-1) are respectively connected to the second reducer (6-2). The second reducer (6-2) is connected to the second motor (6-3). The second motor (6-3) drives the second winding shaft (6-1) to rotate through the second reducer (6-2).

5. The main torch system for a large-scale sports event according to claim 2, characterized in that, The third hoisting device (33) is provided with two groups and is symmetrically arranged, including a cable drum (9), a gas pipe drum (10), a gearbox (13) and a third motor (14). The cable drum (9) and the gas pipe drum (10) are both rotatably installed on the lower structure (4). The ends of the cable drum (9) and the gas pipe drum (10) are jointly connected to the gearbox (13), and the gearbox (13) is connected to the third motor (14). By driving the gearbox (13) with the third motor (14), the cable drum (9) and the gas pipe drum (10) are driven to rotate synchronously, so as to realize the synchronous winding and unwinding of the gas pipe and the cable.

6. The main torch system for a large-scale sports event according to claim 1, characterized in that, The ground device (300) further includes a platform (15), a step mechanism (16), a first lifting device (17), a second lifting device (20) and a third lifting device (23); The platform (15) is installed in the stadium pit; the step mechanism (16), the first lifting device (17), the second lifting device (20) and the third lifting device (23) are installed on the platform (15). The installation points of the third lifting device (23), the second lifting device (20) and the step mechanism (16) on the platform (15) are distributed in sequence from front to back, and the installation position of the third lifting device (23) is at the front end; the end of the first lifting device (17) is rotatably connected to the middle of the step mechanism (16), and the ends of the second lifting device (20) and the third lifting device (23) are respectively rotatably connected to the fixed frame (25). The third lifting device (23) is vertically arranged, and the second lifting device (20) is inclined; The torch fixing device (30) is pre-placed on the fixed frame (25), and is prevented from sliding down by the cooperation of the connecting shaft (30-1) and the hook (28); after the fixed frame (25) is gradually lifted to the maximum angle, the driving motor (24) drives the chain transmission device (26) to operate, so that the hook (28) drives the torch fixing device (30) to move upward along the surface of the fixed frame (25). At the same time, in cooperation with the control of the traction steel wire rope by the hoisting device, the torch fixing device (30) is separated from the fixed frame (25) and is hoisted.

7. The main torch system for a large-scale sports event according to claim 6, characterized in that, The first lifting device (17), the second lifting device (20) and the third lifting device (23) are electric push rod devices, hydraulic cylinder devices or gear and rack devices; the stroke of the second lifting device (20) is greater than the stroke of the third lifting device (23), so as to realize the pitching control of the fixed frame (25) from horizontal to the included angle α, and α is 30° to 60°.

8. The main torch system for a large-scale sports event according to claim 1, characterized in that The torch fixing device (30) is used to fix the main torch. A first traction lug (30-2) is respectively arranged on both sides of the upper half part thereof, and a second traction lug (30-3) is respectively arranged on both sides of the lower half part thereof. The middle part is hollowed out and provided with a torch base (30-4); the first traction lug (30-2) is used to connect the first traction steel wire rope (29), and the second traction lug (30-3) is used to connect the second traction steel wire rope (32); The torch base (30 - 4) is used to fix the main torch. The torch base (30 - 4) is provided with a gas interface for connecting the gas pipeline and a cable interface for connecting the cable. After the main torch is placed on the torch base (30 - 4), the gas interface is communicated with the air inlet on the main torch to realize the transmission of gas, and the cable interface is connected to the electrical port on the main torch to realize electrical control.

9. A main torch system for a large-scale sports event according to any one of claims 1 to 8, characterized in that When the stadium pit is opened, the second lifting device (20) and the third lifting device (23) work to lift the fixing frame (25) and the torch fixing device (30) together to a set angle with the ground. Control the first lifting device (17) to work to lift the step mechanism (16) to the height leading to the ignition position. The pressure vehicle device (100) moves to directly above the pit. Insert the torch into the torch base (30 - 4), and connect the first traction wire rope (29) and the second traction wire rope (32) to the corresponding lifting lugs on the torch fixing device (30). The drive motor (24) drives the hook (28) on the chain drive device (26) to move upward along the surface of the fixing frame (25), driving the torch fixing device (30) to continue moving upward, and gradually disengaging from the fixing frame (25) under the lifting of the first hoisting device (5) and the second hoisting device (6); During the hoisting process, the moving pulley device (7) moves until the torch fixing device (30) is completely vertical, and finally the ground device (300) resets and the pit cover is closed.

Images