High-density connection photography track device

Abstract

The utility model discloses a high-density connection photographic track device, and relates to the technical field of photographic equipment. The device comprises a mounting seat, an adjusting assembly is fixedly mounted at the bottom end of the mounting seat, and a sliding assembly is fixedly mounted in the mounting seat. The driving assembly is started to be matched with the synchronous belt to move, the driving assembly drives the limiting assembly to move, when the limiting assembly moves, the limiting assembly can be matched with the idler wheels and the fixing assembly to drive the installation assembly to move, and the installation assembly drives the photographic equipment fixedly installed at the top end of the installation assembly to move. Each set of rollers comprises double rollers, the contact area between the rollers and the sliding assembly can be increased, meanwhile, the rollers are in rolling connection with the sliding assembly in an up-down clamping mode, the sliding assembly can be prevented from deforming, the stability of the high-density connection photographing track device can be improved, and the photographing effect of photographing equipment is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of photographic equipment, and in particular relates to a high-density connection photographic track device. Background Art

[0002] When shooting film and television works or promotional videos, in order to obtain the ideal picture effect, various auxiliary props are often needed. The camera track is one of them. Its usage scenarios mainly include large scenes with large spans, scenes that require high-speed movement, and scenes that require special perspectives.

[0003] When shooting a video, a camera track is often needed to shoot some special shots. However, the existing camera track is prone to shaking and has poor stability when driving the camera equipment to move, which leads to poor shooting effect of the camera equipment.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related art, the utility model proposes a high-density connection photography track device to overcome the above-mentioned technical problems existing in the existing related art.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses a high-density connection photography track device, comprising a mounting seat, an adjusting component is fixedly installed on the bottom end of the mounting seat, a sliding component is fixedly installed inside the mounting seat, a plurality of rollers are rotatably arranged on the outer surface of the sliding component, a mounting component is fixedly connected to the top end of the roller, a limiting component is fixedly connected to the bottom end of the roller, a fixing component is rotatably arranged inside the mounting component, the top end of the fixing component is engaged with the inside of the limiting component, a driving component is fixedly installed on the top end of the limiting component, a synchronous belt is arranged for transmission at the output end of the driving component, both ends of the synchronous belt are fixedly connected to a first fixing seat, and one side of the first fixing seat is fixedly installed to one side of the mounting seat.

[0008] Furthermore, the adjustment assembly includes a threaded rod, the top end of the threaded rod is fixedly mounted on the bottom end of the mounting seat, the threaded surface of the threaded rod is threadedly connected to a threaded barrel, the bottom end of the threaded barrel is fixedly connected to a rotating seat, and the bottom end of the rotating seat is rotatably provided with a base plate.

[0009] Furthermore, the sliding assembly includes two groups of tracks, and the outer surfaces of the two groups of tracks are slidably arranged inside the mounting seat. The outer surface of the track is fixedly connected to a positioning plate, one side of the positioning plate is fitted with one side of the mounting seat, one end of the track is threadedly installed with a threaded cap, one side of the threaded cap is fitted with one side of the mounting seat, and the outer surface of the track is rollingly arranged with the inner side of the roller.

[0010] Furthermore, the mounting assembly includes a mounting plate, the bottom end of the mounting plate is fixedly connected to the top end of the roller, the top end of the mounting plate is fixedly connected to a mounting frame, and the internal threads of the mounting frame are connected to fastening bolts.

[0011] Furthermore, the limiting assembly includes a limiting plate, the top of which is fixedly connected to the bottom of the roller, a connecting groove is provided at the bottom of the limiting plate, a limiting groove is provided inside the connecting groove, and the inside of the limiting groove fits with the top of the fixed assembly.

[0012] Further, the fixing assembly includes a rotation groove, the rotation groove is opened on one side of the mounting plate, a second fixing seat is rotatably arranged inside the rotation groove, a screw rod is fixedly connected to the bottom end of the second fixing seat, a fixing cylinder is threadedly connected to the threaded surface of the screw rod, and a rotating handle is fixedly connected to the bottom end of the fixing cylinder;

[0013] The outer surface of the fixing cylinder is fixedly connected to a limiting plate, and the outer surface of the limiting plate fits with the interior of the limiting groove.

[0014] Further, the driving assembly includes a mounting box, the bottom end of the mounting box is fixedly mounted on the top end of the limit plate, a connecting shaft is rotatably arranged inside the mounting box, an auxiliary wheel is fixedly connected to the outer surface of the connecting shaft, and the inner side of the auxiliary wheel is in contact with the bottom end of the synchronous belt;

[0015] A driving motor is fixedly installed on one side of the installation box, and a synchronous wheel is fixedly connected to the output end of the driving motor. The inner side of the synchronous wheel is arranged for transmission with the top end of the synchronous belt.

[0016] The utility model has the following beneficial effects:

[0017] 1. The utility model starts the driving component to move in coordination with the synchronous belt, and the driving component drives the limit component to move. When the limit component moves, it can cooperate with the roller and the fixing component to drive the installation component to move, and the installation component drives the photographic equipment fixedly installed on its top to move. Since there are multiple groups of rollers, and each group of rollers is a double roller, the contact area between the rollers and the sliding component can be increased. At the same time, the rollers are rollingly connected to the sliding component in an upper and lower clamping manner, which can prevent the sliding component from deformation, thereby improving the stability of the high-density connection photographic track device and ensuring the shooting effect of the photographic equipment.

[0018] 2. The utility model starts the driving motor to drive the synchronous wheel to rotate, and the synchronous wheel can cooperate with the synchronous belt to drive the driving motor to move, the driving motor drives the installation box to move, the installation box drives the limit plate to move, and then makes it cooperate with the roller to slide on the surface of the slide rail, the limit plate cooperates with the limit groove to drive the limit plate to move, the limit plate cooperates with the fixed cylinder to drive the screw rod to move, the screw rod cooperates with the second fixed seat to move, the second fixed seat drives the installation plate to move, the installation plate drives the roller to slide on the surface of the slide rail, and the installation plate cooperates with the installation frame to drive the photographic equipment to move. Since there are multiple groups of rollers, and each group of rollers is a double roller, the contact area between the roller and the slide rail can be increased. At the same time, the rollers are rollingly connected to the slide rail in an upper and lower clamping manner, which can prevent the slide rail from deformation, thereby improving the stability of the high-density connection photographic track device and ensuring the shooting effect of the photographic equipment.

[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the structure explosion from the front view of the present invention;

[0023] Figure 3 For the utility model Figure 2 A is an enlarged schematic diagram of the local structure;

[0024] Figure 4 It is a schematic diagram of the structure of the utility model from a rear-view perspective;

[0025] Figure 5 It is a schematic diagram of the structure of the utility model from an upward perspective;

[0026] Figure 6 For the utility model Figure 5 A magnified schematic diagram of the local structure at B in the middle;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Mounting seat; 2. Adjustment assembly; 201. Threaded rod; 202. Threaded cylinder; 203. Rotating seat; 204. Bottom plate; 3. Sliding assembly; 301. Track; 302. Positioning plate; 303. Threaded cap; 4. Roller; 5. Mounting assembly; 501. Mounting plate; 502. Mounting frame; 503. Fastening bolt; 6. Limiting assembly; 601. Limiting plate; 602. Connecting groove; 603. Limiting groove; 7. Fixing assembly; 701. Rotating groove; 702. Second fixing seat; 703. Screw rod; 704. Fixing cylinder; 705. Turning handle; 706. Limiting disk; 8. Driving assembly; 801. Mounting box; 802. Connecting shaft; 803. Auxiliary wheel; 804. Driving motor; 805. Synchronous wheel; 9. Synchronous belt; 10. First fixing seat. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0031] See also Figure 1-Figure 6As shown, the utility model is a high-density connection photography track device, including a mounting seat 1, an adjusting component 2 is fixedly installed at the bottom end of the mounting seat 1, a sliding component 3 is fixedly installed inside the mounting seat 1, a plurality of rollers 4 are rollingly arranged on the outer surface of the sliding component 3, a mounting component 5 is fixedly connected to the top end of the roller 4, a limiting component 6 is fixedly connected to the bottom end of the roller 4, a fixing component 7 is rotatably arranged inside the mounting component 5, the top end of the fixing component 7 is clamped with the inside of the limiting component 6, a driving component 8 is fixedly installed on the top end of the limiting component 6, a synchronous belt 9 is arranged for the output end transmission of the driving component 8, both ends of the synchronous belt 9 are fixedly connected to a first fixing seat 10, and one side of the first fixing seat 10 is fixedly installed with one side of the mounting seat 1.

[0032] When in use, the flatness of the mounting seat 1 is adjusted by rotating the adjusting component 2, and then the mounting component 5 drives the roller 4 to be placed on the top of the sliding component 3, and the limiting component 6 drives the roller 4 to be placed on the bottom end of the sliding component 3, and its length is adjusted by rotating the fixing component 7, and then the limiting component 6 is placed on the top of the fixing component 7, and the fixing component 7 is rotated to shorten its length, thereby driving the limiting component 6 to move upward. When the limiting component 6 moves upward, it can drive the roller 4 fixedly connected to its top end to fit with the bottom end of the sliding component 3, thereby completing the fixed installation of the mounting component 5 and the limiting component 6 and the sliding component 3, so that the matching roller 4 can slide on the outer surface of the sliding component 3, and then the photographic equipment is fixedly installed on the top of the mounting component 5, and by starting the driving component 8, since both ends of the synchronous belt 9 are fixedly connected to the first fixing seat 10, and the first One side of the fixed seat 10 is fixedly installed with one side of the mounting seat 1, so that when the driving component 8 is started, it can cooperate with the synchronous belt 9 to move. When the driving component 8 moves, it can drive the limiting component 6 fixedly installed at its bottom to move. Since the limiting component 6 and the mounting component 5 are fixedly installed through the fixing component 7, and the top of the limiting component 6 and the bottom of the mounting component 5 are fixedly connected with the roller 4, when the limiting component 6 moves, it can cooperate with the roller 4 and the fixing component 7 to drive the mounting component 5 to move. When the mounting component 5 moves, it can drive the photographic equipment fixedly installed at its top to move. Since there are multiple groups of rollers 4, and each group of rollers 4 is a double roller, the contact area between the rollers 4 and the sliding component 3 can be increased. At the same time, the rollers 4 are rollingly connected to the sliding component 3 in an upper and lower clamping manner, thereby improving the stability of the high-density connection photographic track device.

[0033] The utility model starts the driving component 8 to cooperate with the synchronous belt 9 to move, and the driving component 8 drives the limit component 6 to move. When the limit component 6 moves, it can cooperate with the roller 4 and the fixing component 7 to drive the installation component 5 to move, and the installation component 5 drives the photographic equipment fixedly installed on its top to move. Since there are multiple groups of rollers 4, and each group of rollers 4 is a double roller, the contact area between the rollers 4 and the sliding component 3 can be increased. At the same time, the rollers 4 are rollingly connected to the sliding component 3 in an upper and lower clamping manner, which can prevent the sliding component 3 from deformation, thereby improving the stability of the high-density connection photography track device and ensuring the shooting effect of the photographic equipment.

[0034] In one embodiment, for the above-mentioned adjustment component 2, the adjustment component 2 includes a threaded rod 201, the top end of the threaded rod 201 is fixedly installed with the bottom end of the mounting seat 1, the threaded surface of the threaded rod 201 is threadedly connected with a threaded barrel 202, the bottom end of the threaded barrel 202 is fixedly connected with a rotating seat 203, and the bottom end of the rotating seat 203 is rotatably provided with a bottom plate 204.

[0035] By rotating the threaded barrel 202, the threaded surface of the threaded rod 201 can be coordinated to move up and down. When the threaded barrel 202 moves, it can drive the rotating seat 203 fixed at its bottom end to move and rotate at the same time. When the rotating seat 203 moves, it can drive the bottom plate 204 rotatably set at its bottom end to move. Since the bottom end of the bottom plate 204 is in contact with the ground or the top of the platform, when the bottom plate 204 moves, the mounting seat 1 can be moved away from or close to the ground and the platform, and the parallelism of the mounting seat 1 can be adjusted.

[0036] In one embodiment, for the above-mentioned sliding component 3, the sliding component 3 includes two groups of rails 301, and the outer surfaces of the two groups of rails 301 are set to slide inside the mounting seat 1. The outer surface of the rail 301 is fixedly connected with a positioning plate 302, and one side of the positioning plate 302 is in contact with one side of the mounting seat 1. A threaded cap 303 is threadedly installed at one end of the rail 301, and one side of the threaded cap 303 is in contact with one side of the mounting seat 1. The outer surface of the rail 301 is set to roll with the inner side of the roller 4.

[0037] By inserting one end of the track 301 into the interior of the mounting seat 1, and making one side of the positioning plate 302 fixedly connected to its outer surface fit with one side of the mounting seat 1, and then threading the inside of the threaded cap 303 with the outer surface of one end of the track 301, the fixed installation of the mounting seat 1 and the track 301 is completed, which is convenient for disassembly and installation.

[0038] In one embodiment, for the above-mentioned mounting component 5, the mounting component 5 includes a mounting plate 501, the bottom end of the mounting plate 501 is fixedly connected to the top end of the roller 4, the top end of the mounting plate 501 is fixedly connected to a mounting frame 502, and the internal thread of the mounting frame 502 is connected to a fastening bolt 503.

[0039] The fixed installation of the photographic device is completed conveniently by inserting the base of the photographic device into the interior of the installation frame 502 and then fixing the base of the photographic device by rotating the fastening bolts 503 .

[0040] In one embodiment, for the above-mentioned limiting component 6, the limiting component 6 includes a limiting plate 601, the top of the limiting plate 601 is fixedly connected to the bottom of the roller 4, the bottom of the limiting plate 601 is provided with a connecting groove 602, the interior of the connecting groove 602 is provided with a limiting groove 603, and the interior of the limiting groove 603 is in contact with the top of the fixing component 7.

[0041] By lifting the limit plate 601, the fixing component 7 is passed through the connecting groove 602 and entered into the interior of the connecting groove 602, and then the limit plate 601 is lowered so that the interior of the limit groove 603 opened at the bottom is fitted with the top of the fixing component 7, so that it is convenient to drive the limit plate 601 to move upward by rotating the fixing component 7.

[0042] In one embodiment, for the above-mentioned fixing assembly 7, the fixing assembly 7 includes a rotation groove 701, the rotation groove 701 is opened on one side of the mounting plate 501, a second fixing seat 702 is rotatably arranged inside the rotation groove 701, a screw rod 703 is fixedly connected to the bottom end of the second fixing seat 702, a fixing cylinder 704 is threadedly connected to the threaded surface of the screw rod 703, and a rotating handle 705 is fixedly connected to the bottom end of the fixing cylinder 704;

[0043] The outer surface of the fixing tube 704 is fixedly connected to the limiting plate 706 , and the outer surface of the limiting plate 706 fits with the inner part of the limiting groove 603 .

[0044] By rotating the handle 705, the fixed cylinder 704 fixedly connected to its top is driven to rotate, and then the external thread of the screw rod 703 is cooperated to move up and down. When the fixed cylinder 704 moves, it can drive the limiting plate 706 fixedly connected to its outer surface to move. When the limiting plate 706 enters the interior of the limiting groove 603, the limiting plate 601 can be limited and fixed, and at the same time, the installation stability between the limiting component 6 and the mounting component 5 can be improved.

[0045] In one embodiment, for the above-mentioned driving assembly 8, the driving assembly 8 includes a mounting box 801, the bottom end of the mounting box 801 is fixedly mounted on the top end of the limiting plate 601, a connecting shaft 802 is rotatably arranged inside the mounting box 801, an auxiliary wheel 803 is fixedly connected to the outer surface of the connecting shaft 802, and the inner side of the auxiliary wheel 803 is in contact with the bottom end of the synchronous belt 9;

[0046] A driving motor 804 is fixedly installed on one side of the installation box 801 , and a synchronous wheel 805 is fixedly connected to the output end of the driving motor 804 . The inner side of the synchronous wheel 805 is arranged for transmission with the top end of the synchronous belt 9 .

[0047] By starting the driving motor 804, the synchronous wheel 805 fixedly connected to its output end is driven to rotate. Since the inner side of the synchronous wheel 805 is arranged for transmission with the top end of the synchronous belt 9, and the two ends of the synchronous belt 9 are fixed, when the synchronous wheel 805 rotates, it can cooperate with the synchronous belt 9 to drive the driving motor 804 to move. When the driving motor 804 moves, it can drive the installation box 801 fixedly installed on one side to move. When the installation box 801 moves, it can drive the limit plate 601 fixedly installed on the bottom end to move, thereby driving the limit assembly 6 to move. The auxiliary wheels 803 and the connecting shaft 802 are both provided with two groups, which are symmetrical, and can tighten the synchronous belt 9. At the same time, the contact area between the synchronous wheel 805 and the synchronous belt 9 is increased, thereby improving the stability of the high-density connection photography track device.

[0048] Through the above technical scheme, 1. By starting the driving component 8 to move in coordination with the synchronous belt 9, the driving component 8 drives the limit component 6 to move. When the limit component 6 moves, it can cooperate with the roller 4 and the fixing component 7 to drive the installation component 5 to move. The installation component 5 drives the photographic equipment fixedly installed on its top to move. Since there are multiple groups of rollers 4, and each group of rollers 4 is a double roller, the contact area between the rollers 4 and the sliding component 3 can be increased. At the same time, the rollers 4 are rollingly connected with the sliding component 3 in an upper and lower clamping manner, which can prevent the sliding component 3 from deforming, thereby improving the stability of the high-density connection photographic track device and ensuring the shooting effect of the photographic equipment; 2. By starting the driving motor 804 to drive the synchronous wheel 805 to rotate, the synchronous wheel 805 can cooperate with the synchronous belt 9 to drive the driving motor 804 to move, and the driving motor 804 drives the installation box 801 to move, and the installation The box 801 drives the limit plate 601 to move, and then cooperates with the roller 4 to slide on the surface of the slide rail 301. The limit plate 601 cooperates with the limit groove 603 to drive the limit plate 706 to move. The limit plate 706 cooperates with the fixed tube 704 to drive the screw rod 703 to move. The screw rod 703 cooperates with the second fixed seat 702 to move. The second fixed seat 702 drives the mounting plate 501 to move. The mounting plate 501 drives the roller 4 to slide on the surface of the slide rail 301. At the same time, the mounting plate 501 cooperates with the mounting frame 502 to drive the photographic equipment to move. Since there are multiple groups of rollers 4, and each group of rollers 4 is a double roller, the contact area between the roller 4 and the slide rail 301 can be increased. At the same time, the roller 4 is rollingly connected to the slide rail 301 in an upper and lower clamping manner, which can prevent the slide rail 301 from deformation, thereby improving the stability of the high-density connection photographic track device and ensuring the shooting effect of the photographic equipment.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0050] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-density connection photography track device, comprising a mounting seat (1), characterized in that: An adjusting component (2) is fixedly mounted on the bottom end of the mounting seat (1), a sliding component (3) is fixedly mounted inside the mounting seat (1), a plurality of rollers (4) are rotatably mounted on the outer surface of the sliding component (3), a mounting component (5) is fixedly connected to the top end of the roller (4), a limiting component (6) is fixedly connected to the bottom end of the roller (4), a fixing component (7) is rotatably mounted inside the mounting component (5), the top end of the fixing component (7) is engaged with the inside of the limiting component (6), a driving component (8) is fixedly mounted on the top end of the limiting component (6), a synchronous belt (9) is arranged at the output end of the driving component (8), both ends of the synchronous belt (9) are fixedly connected to a first fixing seat (10), and one side of the first fixing seat (10) is fixedly mounted to one side of the mounting seat (1).

2. A high-density connection photography track device according to claim 1, characterized in that: The adjustment assembly (2) comprises a threaded rod (201), the top end of the threaded rod (201) being fixedly mounted to the bottom end of the mounting seat (1), the threaded surface of the threaded rod (201) being threadedly connected to a threaded barrel (202), the bottom end of the threaded barrel (202) being fixedly connected to a rotating seat (203), and the bottom end of the rotating seat (203) being rotatably provided with a bottom plate (204).

3. A high-density connection photography track device according to claim 1, characterized in that: The sliding assembly (3) comprises two groups of tracks (301), the outer surfaces of the two groups of tracks (301) are slidably arranged inside the mounting seat (1), the outer surfaces of the tracks (301) are fixedly connected to positioning plates (302), one side of the positioning plates (302) is fitted with one side of the mounting seat (1), one end of the tracks (301) is threadedly mounted with a threaded cap (303), one side of the threaded cap (303) is fitted with one side of the mounting seat (1), and the outer surface of the tracks (301) is rollingly arranged with the inner side of the roller (4).

4. The high-density connection photography track device according to claim 1, characterized in that: The mounting assembly (5) comprises a mounting plate (501), the bottom end of the mounting plate (501) being fixedly connected to the top end of the roller (4), the top end of the mounting plate (501) being fixedly connected to a mounting frame (502), and the internal thread of the mounting frame (502) being connected to a fastening bolt (503).

5. A high-density connection photography track device according to claim 4, characterized in that: The limiting assembly (6) comprises a limiting plate (601), the top end of the limiting plate (601) is fixedly connected to the bottom end of the roller (4), the bottom end of the limiting plate (601) is provided with a connecting groove (602), the interior of the connecting groove (602) is provided with a limiting groove (603), and the interior of the limiting groove (603) is in contact with the top end of the fixed assembly (7).

6. A high-density connection photography track device according to claim 5, characterized in that: The fixing assembly (7) comprises a rotation groove (701), the rotation groove (701) being opened on one side of the mounting plate (501), a second fixing seat (702) being rotatably arranged inside the rotation groove (701), a screw rod (703) being fixedly connected to the bottom end of the second fixing seat (702), a fixing cylinder (704) being threadedly connected to the threaded surface of the screw rod (703), and a rotating handle (705) being fixedly connected to the bottom end of the fixing cylinder (704); The outer surface of the fixed cylinder (704) is fixedly connected to a limiting plate (706), and the outer surface of the limiting plate (706) fits the inside of the limiting groove (603).

7. The high-density connection photography track device according to claim 5, characterized in that: The driving assembly (8) comprises a mounting box (801), the bottom end of the mounting box (801) is fixedly mounted to the top end of the limit plate (601), a connecting shaft (802) is rotatably arranged inside the mounting box (801), an auxiliary wheel (803) is fixedly connected to the outer surface of the connecting shaft (802), and the inner side of the auxiliary wheel (803) is in contact with the bottom end of the synchronous belt (9); A driving motor (804) is fixedly mounted on one side of the installation box (801), and a synchronous wheel (805) is fixedly connected to the output end of the driving motor (804), and the inner side of the synchronous wheel (805) is arranged for transmission with the top end of the synchronous belt (9).

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