Modular transmission structure

Abstract

The modularized transmission structure comprises at least one transmission module, any transmission module mainly comprises a frame plate, and the frame plate is provided with a front plate part, a top surface part, a first side part, a bottom surface part and a second side part; the main rod is provided with a first tooth part, one end of the main rod penetrates through the top surface part, and the other end of the main rod penetrates through the bottom surface part; one end of the first auxiliary rod is provided with a second tooth part, and the other end of the first auxiliary rod penetrates through the first side part; one end of the second auxiliary rod is provided with a third tooth part, and the other end of the second auxiliary rod penetrates through the second side part; and a first worm gear and a second worm gear are respectively pivoted with the front plate part, the first worm gear is respectively meshed with the first tooth part and the second tooth part, and the second worm gear is respectively meshed with the first tooth part and the third tooth part, so that different transmission outputs in multiple directions can be provided when the main rod rotates.

Description

Technical Field

[0001] The present invention relates to a modular transmission structure, and more particularly to a structure that can provide different transmission outputs in multiple directions and is flexibly applicable to products of various designs. Background Art

[0002] Currently, transmission structures requiring steering typically employ staggered helical gears, worms and worm wheels, or a combination of intersecting bevel gears. However, when transmission functions in three different directions are required, such a structural combination can result in an excessively large overall size.

[0003] As shown in the patent case "Flexible Screen Retractable Structure and Portable Electronic Device" with announcement number CN220248641U, a retractable transmission structure is shown, which mainly connects the second support plate through at least one first driving element, so that multiple movable guide plates and multiple fixed guide plates move relative to each other, so that when the first extension body approaches the main body, the flexible screen displays a first display area, and when the first extension body moves away from the main body, the flexible screen displays the first display area and a second display area; at the same time, the fourth support plate is connected through at least one second driving element, so that multiple movable plates and multiple fixed plates move relative to each other, so that when the second extension body moves away from the main body, the flexible screen displays the first display area and a third display area. The first driving assembly includes at least one first rack, a first connecting rod, and a co-acting rod. One end of the at least one first rack is connected to the second support plate. The first connecting rod has at least one first gear and a second gear. The at least one first gear is correspondingly engaged with the at least one first rack. One end of the co-acting rod has a third gear. The third gear is connected to the second gear. The second driving element includes at least one second rack and a second connecting rod. One end of the at least one second rack is connected to the fourth support plate. The second connecting rod has at least one fourth gear and a fifth gear. The at least one fourth gear is correspondingly engaged with the at least one second rack. The other end of the co-acting rod has a sixth gear. The sixth gear is connected to the fifth gear. In this way, a large display area can be simultaneously formed for the first, second, and third display areas. The first and third display areas can also be folded as needed to facilitate portability and reduce the space occupied.

[0004] However, the transmission structure in Patent No. CN220248641U is quite complex and customized. In actual operation, it not only increases the costs of manufacturing, assembly, and warehousing, but also has a large overall volume after assembly, which does not meet the requirements of lightweight and thin products. Utility Model Content

[0005] In view of this, in order to provide a structure different from the prior art and to improve the above-mentioned shortcomings, the inventors have accumulated many years of experience and continued research and development and improvement, thus producing the present utility model.

[0006] One object of the present invention is to provide a modular transmission structure that improves the complexity of conventional transmission structures and the fact that these customized products not only increase manufacturing, assembly, and storage costs but also make the assembled structure bulky. By providing a structure in which various gears are arranged on the same plane, a directional transmission function is achieved, thereby reducing manufacturing, assembly, and storage costs and reducing the overall size of the transmission mechanism to meet the requirements of lightweight and thin products. Furthermore, by combining multiple transmission modules in different configurations, a variety of outputs in different directions can be provided, flexibly adapting to various product designs.

[0007] In order to achieve the purpose of the above-mentioned utility model, the modular transmission structure provided by the utility model mainly includes at least one transmission module, and any transmission module includes a frame plate, a main rod, at least one auxiliary rod and a first worm gear, wherein the frame plate has a front plate portion, a top portion, a first side portion, a bottom portion and a second side portion; the main rod has a spiral first tooth portion, one end of the main rod passes through the top portion, and the other end of the main rod passes through the bottom portion; at least one auxiliary rod is accommodated in the front plate portion, at least one auxiliary rod includes a first auxiliary rod, one end of the first auxiliary rod has a spiral second tooth portion, and the other end of the first auxiliary rod passes through the first side portion; and the first worm gear is pivotally connected to the front plate portion, and the first worm gear is respectively toothed with the first tooth portion and the second tooth portion.

[0008] During implementation, the transmission module also includes a second worm gear, which is pivotally connected to the front plate portion, and the second worm gear and the first worm gear are arranged side by side on both sides of the main rod; at least one auxiliary rod also includes a second auxiliary rod, one end of the second auxiliary rod has a spiral third tooth portion, the other end of the second auxiliary rod passes through the second side portion, and the second worm gear is respectively geared to the first tooth portion and the third tooth portion; the main rod, the first auxiliary rod and the second auxiliary rod are respectively rod-shaped structures with spiral teeth.

[0009] During implementation, the front plate of the frame plate has a first accommodating groove and a second accommodating groove spaced apart and arranged in parallel. The first accommodating groove is provided with a first pivot, the first worm gear is pivotally connected to the first pivot, and the first worm gear is accommodated in the first accommodating groove; the second accommodating groove is provided with a second pivot, the second worm gear is pivotally connected to the second pivot, and the second worm gear is accommodated in the second accommodating groove.

[0010] During implementation, the utility model also includes a first cover plate and a second cover plate, one end of the first cover plate is connected to the front plate portion of the frame plate, and the other end of the first cover plate limits the first worm gear; one end of the second cover plate is connected to the front plate portion of the frame plate, and the other end of the second cover plate limits the second worm gear.

[0011] During implementation, the front plate of the frame plate also has a long groove, the two sides of the long groove are respectively connected to the first accommodating groove and the second accommodating groove, one end of the long groove is connected to the top surface, and the other end of the long groove has a positioning hole. One end of the main rod and the first tooth portion are simultaneously accommodated in the long groove, and the other end of the main rod passes through the positioning hole and the bottom surface.

[0012] During implementation, the front plate of the frame plate also has a first notch and a second notch, one end of the first notch is connected to the first accommodating groove, and the other end of the first notch is connected to the first side portion for accommodating and positioning the first sub-rod; one end of the second notch is connected to the second accommodating groove, and the other end of the second notch is connected to the second side portion for accommodating and positioning the second sub-rod.

[0013] During implementation, the utility model also includes a top positioning plate, a first side positioning plate and a second side positioning plate. The top positioning plate is connected to the top surface portion, and one end of the main rod passes through the top positioning plate; the first side positioning plate is connected to the first side portion, and the other end of the first sub-rod passes through the first side portion; the second side positioning plate is connected to the second side portion, and the other end of the second sub-rod passes through the second side portion.

[0014] During implementation, the top portion has a first positioning column for corresponding connection with the top positioning plate; the first side portion has a second positioning column for corresponding connection with the first side positioning plate; the second side portion has a third positioning column for corresponding connection with the second side positioning plate.

[0015] During implementation, at least one transmission module includes a first transmission module and a second transmission module, at least one side of the first transmission module has a first connection part, at least one side of the second transmission module has a second connection part, and the two ends of a sleeve are respectively connected to the first connection part and the second connection part in a synchronous manner.

[0016] During implementation, the first connecting portion and the second connecting portion are respectively half-split shafts.

[0017] During implementation, the transmission module of the present invention also includes a torque module, which is connected to one side of the frame plate. The torque module includes at least one long plate and at least one friction plate. The at least one friction plate is sandwiched between the at least one long plate. The main rod passes through the at least one friction plate and the at least one long plate, and the main rod is connected to the at least one friction plate in a synchronous manner. When the main rod rotates, the at least one friction plate and the at least one long plate rub against each other to generate torque.

[0018] The present invention has the following beneficial effects: after the frame plate is installed in a position and a main rod is driven manually or electrically, different transmission outputs can be provided from different sides of the frame plate. By arranging a main rod, a first auxiliary rod, a second auxiliary rod, a first worm gear, and a second worm gear on the same plane, manufacturing, assembly, and storage costs can be effectively reduced, and the overall volume of the transmission mechanism can be reduced to meet the requirements of lightweight and thin products. Furthermore, by modularizing the transmission mechanism and assembling multiple transmission modules in different directions, different outputs can be provided in a wider range of directions as needed, flexibly adapting to a variety of product designs. The presence of a torque module on at least one side of the frame plate effectively eliminates internal stress in the structure when the force is manually opened or closed, preventing the structures connected on both sides of the transmission mechanism from rebounding due to idle travel caused by tooth clearance when the applied force is removed, thereby allowing the product to be securely stopped at a predetermined position.

[0019] In order to facilitate a deeper understanding of the present invention, it is described in detail below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an exploded view of a three-dimensional element according to the first embodiment of the present invention.

[0021] Figure 2 It is a front view of the first embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the first embodiment of the present invention in use.

[0023] Figure 4 This is a schematic diagram of the second embodiment of the present invention in use.

[0024] Figure 5 This is an exploded view of some components of the second embodiment of the present invention.

[0025] Figure 6 This is an exploded view of some components of the second embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of another implementation of the second embodiment of the present invention in use.

[0027] Figure 8 This is a schematic diagram of a usage state of another implementation form of the second embodiment of the present utility model.

[0028] Figure 9 This is an exploded view of a three-dimensional element according to the third embodiment of the present invention.

[0029] Description of Reference Numerals

[0030] 1: Modular transmission structure;

[0031] 2: Transmission module;

[0032] 2': first transmission module;

[0033] 2": second transmission module;

[0034] 3: frame board;

[0035] 31: front plate;

[0036] 311: first accommodating groove;

[0037] 312: second receiving groove;

[0038] 313: long missing groove;

[0039] 314: first missing slot;

[0040] 315: Second missing slot;

[0041] 316: first pivot;

[0042] 317: second pivot;

[0043] 318: positioning hole;

[0044] 32: top face;

[0045] 321: top positioning plate;

[0046] 322: first limiting hole;

[0047] 323: first positioning column;

[0048] 33: first side portion;

[0049] 331: first side positioning plate;

[0050] 332: second limiting hole;

[0051] 333: second positioning column;

[0052] 34: bottom face;

[0053] 35: second side portion;

[0054] 351: second side positioning plate;

[0055] 352: third limiting hole;

[0056] 353: third positioning column;

[0057] 4,4',4":main pole;

[0058] 41: first tooth portion;

[0059] 5,5',5": first pair of poles;

[0060] 51: second tooth portion;

[0061] 52: first shaft hole;

[0062] 6,6',6": second rod;

[0063] 61: third tooth;

[0064] 62: second shaft hole;

[0065] 7: first worm gear;

[0066] 71: first cover plate;

[0067] 8: second worm gear;

[0068] 81; second cover plate;

[0069] 9: first connecting portion;

[0070] 91: second connecting portion;

[0071] 92,92',92": connecting rod;

[0072] 921: first half section;

[0073] 922: second half section;

[0074] 93,94: shaft sleeve;

[0075] 941: third axis hole;

[0076] 10: Torque module;

[0077] 101,101',101": long board;

[0078] 102, 102': first gasket;

[0079] 103, 103': second gasket;

[0080] 104, 104': friction plate;

[0081] 105: first friction rod;

[0082] 106: second friction rod;

[0083] 107,107': End seal. DETAILED DESCRIPTION

[0084] The modular transmission structure of the present invention mainly includes at least one transmission module, any transmission module includes a frame plate 3, a main rod 4, at least one auxiliary rod and a first worm gear 7, wherein the frame plate has a front plate portion 31, a top portion 32, a first side portion 33, a bottom portion 34 and a second side portion 35; the main rod 4 has a spiral first tooth portion 41, one end of the main rod 4 passes through the top portion 32, and the other end of the main rod 4 passes through the bottom portion 34; at least one auxiliary rod is accommodated in the front plate portion 31, at least one auxiliary rod includes a first auxiliary rod 5, one end of the first auxiliary rod 5 has a spiral second tooth portion 51, and the other end of the first auxiliary rod 5 passes through the first side portion 33; and the first worm gear 7 is pivotally connected to the front plate portion 31, and the first worm gear 7 is respectively geared to the first tooth portion 41 and the second tooth portion 52. In this way, when using a single transmission module or connecting multiple transmission modules and driving the main rod 4 manually or by a motor, different transmission outputs in multiple directions can be provided simultaneously.

[0085] See also Figure 1 、 Figure 2 As shown, it is a first embodiment of the modular transmission structure 1 of the present invention, comprising a transmission module 2, which comprises a frame plate 3, a main rod 4, at least one auxiliary rod, a first worm gear 7 and a second worm gear 8. The frame plate 3 is a square flat plate, having a front plate portion 31, a top portion 32, a first side portion 33, a bottom portion 34 and a second side portion 35. The plate surface of the front plate portion 31 is provided with a first receiving groove 311, a second receiving groove 312, a long notch 313, a first notch 314 and a second notch 315. The first receiving groove 311 and the second receiving groove 312 are spaced and arranged side by side on both sides of the long notch 313, and the first receiving groove 311 is provided with a first pivot portion 316. The first receiving groove 31 The first notch 314 and the second notch 315 are arranged on one side of the long notch 313, and the second notch 312 is provided with a second pivot portion 317. The second notch 312 is connected to the other side of the long notch 313. The long notch 313 is a straight groove, with its top end upwardly connected to the top surface portion 32, and its bottom end having a positioning hole 318. The first notch 314 and the second notch 315 are two transverse grooves arranged on the same straight line. In implementation, the first notch 314 and the second notch 315 can also be arranged in an alternating manner, not on the same straight line. One end of the first notch 314 is connected to the first outer annular groove 316, and the other end of the first notch 314 is connected to the first side portion 33. One end of the second notch 315 is connected to the second outer annular groove 317, and the other end of the second notch 315 is connected to the second side portion 35.

[0086] The top portion 32 has a first positioning column 323 for upwardly connecting to a top positioning plate 321, so that the top positioning plate 321 seals the top end of the long slot 313, and the top positioning plate 321 has a first limiting hole 322 that passes through it straightly; the first side portion 33 has a second positioning column 333 for laterally connecting to a first side positioning plate 331, so that the first side positioning plate 331 seals the other end of the first slot 314, and the first side positioning plate 331 has a second limiting hole 332 that passes through it horizontally; the second side portion 35 has a third positioning column 353 for laterally connecting to a second side positioning plate 351, so that the second side positioning plate 351 seals the other end of the second slot 315, and the second side positioning plate 351 has a third limiting hole 352 that passes through it horizontally.

[0087] At least one auxiliary rod includes a first auxiliary rod 5 and a second auxiliary rod 6. The main rod 4, the first auxiliary rod 5, and the second auxiliary rod 6 are each a rod-shaped structure with helical teeth. In implementation, the main rod 4, the first auxiliary rod 5, and the second auxiliary rod 6 can also be connected to a helical gear with a rod-shaped structure. The middle section of the main rod 4 has a spiral first tooth portion 41. The first tooth portion 41 and the upper half of the main rod 4 are simultaneously accommodated in the long notch 313. The top end of the main rod 4 sequentially passes through the top surface 32 and the first limiting hole 322 of the top positioning plate 321, then protrudes upward. The bottom end of the main rod 4 sequentially passes through the positioning hole 318 and the bottom surface 34, then protrudes downward. In implementation, when the main rod 4 and the first tooth portion 41 are integrally formed components, in order to prevent the first tooth portion 41 and the long notch 313 from interfering with each other during assembly, the long notch 313 is configured as a through-slot that passes through the top surface 32, so that the main rod 4 can be assembled into the frame plate 3. One end of the first auxiliary rod 5 has a spiral second tooth portion 51. One end of the first auxiliary rod 5 is positioned in a first shaft hole 52. The other end of the first auxiliary rod 5 sequentially passes through the first side portion 33 and the second limiting hole 332 of the first side positioning plate 331 and protrudes outward, thereby allowing the first auxiliary rod 5 to be accommodated and positioned in the first notch 314. One end of the second auxiliary rod 6 has a spiral third tooth portion 61. One end of the second auxiliary rod 6 is positioned in a second shaft hole 62. The other end of the second auxiliary rod 6 sequentially passes through the second side portion 35 and the third limiting hole 352 of the second side positioning plate 351 and protrudes outward, thereby allowing the second auxiliary rod 6 to be accommodated and positioned in the second notch 315.

[0088] The first worm gear 7 and the second worm gear 8 are respectively ring gears, and in practice, they can also be helical gears. The first worm gear 7 is pivotally connected to the first pivot portion 316 and accommodated in the first receiving groove 311. The first worm gear 7 is respectively geared to the first tooth portion 41 of the main rod 4 and the second tooth portion 51 of the first auxiliary rod 5; and the second worm gear 8 is pivotally connected to the second pivot portion 317 and accommodated in the second receiving groove 312. The second worm gear 8 is respectively geared to the first tooth portion 41 of the main rod 4 and the third tooth portion 61 of the second auxiliary rod 6, so that the first worm gear 7 and the second worm gear 8 are side by side on both sides of the main rod 4. In addition, one end of a first cover plate 71 is connected to the front plate portion 31 of the frame plate 3, and the other end of the first cover plate 71 extends to one axial side of the first worm gear 7, thereby limiting the first worm gear 7 to be located in the first accommodating groove 311; one end of a second cover plate 81 is connected to the front plate portion 31, and the other end of the second cover plate 81 extends to one axial side of the second worm gear 8, thereby limiting the second worm gear 8 to be located in the second accommodating groove 312.

[0089] By this, Figure 3 As shown, when the frame plate 3 is installed in a certain position and the main rod 4 is driven manually or electrically, three different transmission outputs can be provided. For example, when the main rod 4 is rotated in the clockwise direction, the top end of the main rod 4 can also rotate in the clockwise direction for output. When the first tooth portion 41 is respectively connected to the first worm gear 7 and the second worm gear 8, the first worm gear 7 can be rotated in the counterclockwise direction, which in turn connects to the second tooth portion 51 and causes the first auxiliary rod 5 to rotate in the counterclockwise direction for output. At the same time, the second worm gear 8 is rotated in the clockwise direction, which connects to the third tooth portion 61 and causes the second auxiliary rod 6 to rotate in the clockwise direction for output.

[0090] like Figures 4 to 6As shown, it is a second embodiment of the modular transmission structure 1 of the present invention, which is different from the first embodiment in that: the modular transmission structure 1 includes a first transmission module 2' and a second transmission module 2", the first transmission module 2' and the second transmission module 2" are spaced apart and arranged in parallel, and the first transmission module 2', the second transmission module 2" and the transmission module 2 have the same shape and structure. The top of the main rod 4' of the first transmission module 2' is a half-sectioned shaft rod with a radial section, and the half-sectioned shaft rod serves as the first connecting part 9, and the bottom of the main rod 4' of the second transmission module 2" is another half-sectioned shaft rod with another radial section, and the other half-sectioned shaft rod serves as the second connecting part 91. And a connecting rod 92 One end of the connecting rod 92 has a first half-section 921, which overlaps the first connecting part 9 and is then fixed by a sleeve 93; the other end of the connecting rod 92 has a second half-section 922, and another sleeve 94 has a D-shaped third shaft hole 941 for coaxially sleeved with the second half-section 922 and the second connecting part 91, so that the two main rods 4', 4" and the connecting rod 92 rotate synchronously, and when the main rod 4' of the first transmission module 2' rotates in the clockwise direction, the top of the main rod 4" of the second transmission module 2" rotates in the clockwise direction for output, the two first auxiliary rods 5', 5" rotate in the counterclockwise direction for output, and the two second auxiliary rods 6', 6" rotate in the clockwise direction for output.

[0091] During implementation, the first half-section 921 and the first connecting part 9 can also be in a butt-jointed form, or the second half-section 922 and the second connecting part 91 can be in an overlapping form to synchronously link the two main rods 4', 4" and the connecting rod 92; in addition, the first connecting part 9 and the second connecting part 91 can also be directly fixed by any shaft sleeve 93, 94, which can also make the two main rods 4', 4" and the connecting rod 92 rotate synchronously.

[0092] See also Figure 7 As shown, it is another implementation form of the second embodiment of the modular transmission structure 1 of the present invention, wherein the first sub-rod 5' of the first transmission module 2' has a first connecting portion 9, and the first sub-rod 5" of the second transmission module 2" has a second connecting portion 91. The first connecting portion 9 and the second connecting portion 91 are fixed by a connecting rod 92' and two shaft sleeves 93, 94 respectively, so that the two first sub-rods 5', 5" rotate synchronously, and the two ends of the two main rods 4', 4" and the two second sub-rods 6', 6" rotate and output in different directions respectively.

[0093] and Figure 8This is another implementation form of the second embodiment of the modular transmission structure 1 of the present invention, in which the first auxiliary rod 5' of the first transmission module 2' has a first connecting portion 9, and the bottom end of the main rod 4" of the second transmission module 2" has a second connecting portion 91. The first connecting portion 9 and the second connecting portion 91 are fixed by a connecting rod 92" and two shaft sleeves 93, 94 respectively, so that the first auxiliary rod 5' and the main rod 4" rotate synchronously, and the main rod 4', the first auxiliary rod 5" and the two second auxiliary rods 6', 6" are rotated and output in different directions respectively.

[0094] See also Figure 9 As shown, it is a third embodiment of the modular transmission structure 1 of the present invention, which is different from the first embodiment in that: it also includes a torsion module 10, including three long plates 101, 101', 101", two first gaskets 102, 102', two second gaskets 103, 103', two friction plates 104, 104', a first friction rod 105 and a second friction rod 106, wherein the first gasket 102, the second gasket 103 and the friction plate 104 are simultaneously sandwiched between the two long plates 101, 101', the first gasket 102', the second gasket 103 and the friction plate 104 are sandwiched between the two long plates 101, 101', and the first gasket 102', the second gasket 103 and the friction plate 104 are sandwiched between the two long plates 101, 101'. The two washers 103' and the friction plate 104' are simultaneously sandwiched between the two long plates 101', 101". The first friction rod 105 simultaneously penetrates the three long plates 101, 101', 101" and the two first washers 102, 102', and then is locked to the bottom portion 34 of the frame plate 3 with an end seal 107. The second friction rod 106 simultaneously penetrates the three long plates 101, 101', 101" and the two second washers 103, 103', and then is locked to the bottom portion 34 with the other end seal 107', thereby connecting the torque module 10 to one side of the frame plate 3.

[0095] The first auxiliary rod 5 passes through the two friction plates 104, 104' and the three long plates 101, 101', 101", and the first auxiliary rod 5 is connected to the two friction plates 104, 104' in a synchronous manner. When the first auxiliary rod 5 rotates, each friction plate 104, 104' rubs against each long plate 101, 101', 101" to generate torque. During implementation, the torque module 10 can also be installed on the top surface portion 32 or the second side surface portion 35.

[0096] In summary, the frame plate of the present invention, after being installed in a position and manually or electrically driven by a main rod, can provide different transmission outputs from each side of the frame plate. By arranging a main rod, a first auxiliary rod, a second auxiliary rod, a first worm gear, and a second worm gear on the same plane, manufacturing, assembly, and storage costs can be effectively reduced, and the overall volume of the transmission mechanism can be reduced to meet the requirements of lightweight and thin products. Furthermore, by modularizing the transmission mechanism and assembling multiple transmission modules in different directions, it can provide different outputs in a wider range of directions as needed, flexibly adapting to a variety of product designs. The presence of a torque module on at least one side of the frame plate can effectively eliminate internal stress in the structure when manually opened or closed, preventing the structures connected on both sides of the transmission mechanism from rebounding due to idle travel caused by tooth clearance when the applied force is removed, thereby ensuring that the product is securely stopped at a predetermined position.

[0097] Although the present invention discloses preferred specific embodiments to achieve the above-mentioned objectives, they are not intended to limit the structural features of the present invention. Any technician in this technical field should know that within the technical spirit of the present invention, any easily conceivable changes or modifications are possible and are all covered by the scope of the patent application of the present invention.

Claims

1. A modular transmission structure, characterized in that: The invention comprises at least one transmission module, wherein any of the transmission modules comprises: a frame plate having a front plate portion, a top portion, a first side portion, a bottom portion, and a second side portion; a main rod having a first spiral tooth portion, one end of the main rod passing through the top surface portion, and the other end of the main rod passing through the bottom surface portion; At least one auxiliary rod is accommodated in the front plate portion, the at least one auxiliary rod includes a first auxiliary rod, one end of the first auxiliary rod has a spiral second tooth portion, and the other end of the first auxiliary rod passes through the first side portion; and A first worm gear is pivotally connected to the front plate portion. The first worm gear is respectively gear-connected to the first tooth portion and the second tooth portion.

2. The modular transmission structure according to claim 1, wherein: The transmission module also includes a second worm gear, which is pivotally connected to the front plate portion, and the second worm gear and the first worm gear are arranged side by side on both sides of the main rod; the at least one auxiliary rod also includes a second auxiliary rod, one end of the second auxiliary rod has a spiral third tooth portion, the other end of the second auxiliary rod passes through the second side portion, and the second worm gear is respectively geared with the first tooth portion and the third tooth portion; the main rod, the first auxiliary rod and the second auxiliary rod are respectively rod-shaped structures with spiral teeth.

3. The modular transmission structure according to claim 2, wherein: The front plate portion of the frame plate has a first accommodating groove and a second accommodating groove spaced apart and arranged in parallel. The first accommodating groove is provided with a first pivot portion, the first worm gear is pivotally connected to the first pivot portion, and the first worm gear is accommodated in the first accommodating groove; the second accommodating groove is provided with a second pivot portion, the second worm gear is pivotally connected to the second pivot portion, and the second worm gear is accommodated in the second accommodating groove.

4. The modular transmission structure according to claim 3, wherein: It also includes a first cover plate and a second cover plate, one end of the first cover plate is connected to the front plate portion of the frame plate, and the other end of the first cover plate limits the first worm gear; one end of the second cover plate is connected to the front plate portion of the frame plate, and the other end of the second cover plate limits the second worm gear.

5. The modular transmission structure according to claim 3, wherein: The front plate portion of the frame plate also has a long notch, the two sides of the long notch are respectively connected to the first accommodating groove and the second accommodating groove, one end of the long notch is connected to the top surface portion, and the other end of the long notch has a positioning hole, the one end of the main rod and the first tooth portion are simultaneously accommodated in the long notch, and the other end of the main rod passes through the positioning hole and the bottom surface portion.

6. The modular transmission structure according to claim 3, wherein: The front plate portion of the frame plate also has a first notch and a second notch, one end of the first notch is connected to the first accommodating groove, and the other end of the first notch is connected to the first side portion for accommodating and positioning the first sub-rod; one end of the second notch is connected to the second accommodating groove, and the other end of the second notch is connected to the second side portion for accommodating and positioning the second sub-rod.

7. The modular transmission structure according to claim 2, wherein: It also includes a top positioning plate, a first side positioning plate and a second side positioning plate, the top positioning plate is connected to the top portion, and the one end of the main rod passes through the top positioning plate; the first side positioning plate is connected to the first side portion, and the other end of the first sub-rod passes through the first side portion; the second side positioning plate is connected to the second side portion, and the other end of the second sub-rod passes through the second side portion.

8. The modular transmission structure according to claim 7, wherein: The top portion has a first positioning column for corresponding connection with the top positioning plate; the first side portion has a second positioning column for corresponding connection with the first side positioning plate; the second side portion has a third positioning column for corresponding connection with the second side positioning plate.

9. The modular transmission structure according to claim 1 or 2, wherein: The at least one transmission module includes a first transmission module and a second transmission module, at least one side of the first transmission module has a first connection part, at least one side of the second transmission module has a second connection part, and the two ends of a shaft sleeve are respectively connected to the first connection part and the second connection part in a synchronous manner.

10. The modular transmission structure according to claim 9, wherein: The first connecting portion and the second connecting portion are respectively half-split shafts.

11. The modular transmission structure according to claim 1 or 2, wherein: The transmission module also includes a torsion module, which is connected to one side of the frame plate. The torsion module includes at least one long plate and at least one friction plate. The at least one friction plate is sandwiched between the at least one long plate. The main rod passes through the at least one friction plate and the at least one long plate, and the main rod is connected to the at least one friction plate in a synchronous manner. When the main rod rotates, the at least one friction plate and the at least one long plate rub against each other to generate torque.

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