Transmission module, pivoting drive mechanism, electronic product and motion joint

Abstract

The utility model provides a kind of transmission module, pivoted drive mechanism, electronic product and motion joint, wherein, transmission module includes: conveying structure and power output structure;Conveying structure includes: pressure supply unit and power medium;Power medium has fluidity, and one end of pressure supply unit is in contact with power medium;Power output structure includes: drive unit and transmission unit;Drive unit is hollowly set and has elasticity, and transmission unit is pivotally set;Power medium can be driven by pressure supply unit and flow into drive unit, or flow out from drive unit;When power medium flows into drive unit, drive unit can drive transmission unit to rotate by expansion.This utility model integrates conveying structure and power output structure as module, improves its versatility and adaptability, facilitates the miniaturization of volume, and reduces the cost of module.

Description

Technical Field

[0001] This utility model relates to the field of machinery, and in particular to the design of a transmission module capable of outputting rotational power, as well as a pivot drive mechanism, electronic products and motion joints having the transmission module. Background Technology

[0002] Hydraulic power mechanisms, as core devices that achieve rotary power output through hydraulic transmission, convert hydraulic energy into mechanical energy through hydraulic pumps, motors, valve groups, etc., and are widely used in various fields such as engineering machinery, medical equipment, and consumer electronics. However, existing hydraulic power mechanisms suffer from problems such as large size, leakage, and significant energy loss.

[0003] Specifically, the relatively complex structures of traditional hydraulic pumps, motors, and valve assemblies result in low integration and a large footprint for the entire mechanism. This significantly limits the application of hydraulic power mechanisms in applications with strict space constraints, such as small electronic devices, medical equipment, and precision electronic instruments, posing numerous challenges for designers when planning the overall equipment layout.

[0004] Furthermore, the sealing performance of a hydraulic system relies primarily on seals. However, during long-term, high-frequency pivoting motion, seals can experience a decline in sealing performance due to wear, aging, and pressure shocks from the hydraulic oil, leading to leakage. Leakage not only wastes hydraulic oil and increases equipment operating costs, but more seriously, it can contaminate the working environment, especially in fields with extremely high cleanliness requirements, such as medical equipment and food processing.

[0005] Therefore, it is necessary to propose further solutions to the above problems. Utility Model Content

[0006] The present invention aims to provide a transmission module, a pivot drive mechanism, an electronic product, and a motion joint to overcome the shortcomings of the prior art.

[0007] The objective of this application is achieved through the following technical solution: In a first aspect, this application provides a transmission module, which includes: a transmission structure and a power output structure; The conveying structure includes: a pressure supply unit and a power medium; the power medium has fluidity, and one end of the pressure supply unit is in contact with the power medium; The power output structure includes a drive unit and a transmission unit; the drive unit is hollow and elastic, and expands to the required volume from a very small cavity under force; the transmission unit is rotatably mounted. The power medium can be driven by the pressure supply unit to flow into the drive unit or flow out of the drive unit; when the power medium flows into the drive unit, the drive unit can drive the transmission unit to rotate by expansion.

[0008] As an improvement to the transmission module of this utility model, the pressure supply unit includes: a cylinder, a piston, and a linear unit; The power medium is located in the cylinder, one end of the piston is connected to the linear unit for transmission, and the other end is located in the cylinder; the linear unit can drive the piston to perform axial reciprocating motion.

[0009] As an improvement to the transmission module of this utility model, the linear unit is one of an electric lead screw, a linear motor, an electric synchronous belt, an oil pump, and a water pump.

[0010] As an improvement to the transmission module of this utility model, the driving unit is an elastic bladder, which abuts against the transmission unit through at least one working surface so that it can drive the transmission unit to perform pivoting motion during expansion.

[0011] As an improvement to the transmission module of this utility model, the length of the elastic bladder is L; the cross-section of the elastic bladder in the width direction is a regular / irregular shape formed by a circle, ellipse, polygon, or arc, or a regular / irregular shape formed by arcs and straight lines.

[0012] As an improvement to the transmission module of this utility model, the cross section of the elastic bladder in the width direction is fan-shaped; the plane on one side of the elastic bladder in the width direction forms the working surface.

[0013] As an improvement to the transmission module of this utility model, several folded structures arranged in a central array are formed on the two sides of the elastic bladder along its length.

[0014] As an improvement to the transmission module of this utility model, the power medium is transported or flows out of the elastic bladder through a pipeline; the cross-sectional area of ​​the pipeline is smaller than the area of ​​the working surface.

[0015] As an improvement to the transmission module of this utility model, a three-way valve is also provided on the pipeline.

[0016] As an improvement to the transmission module of this utility model, the transmission unit includes: a pivot shaft and at least one transmission component disposed on the pivot shaft; At least one end of the pivot shaft forms a power output end, and when the drive unit expands, it drives the transmission component to rotate the pivot shaft.

[0017] As an improvement to the transmission module of this utility model, the transmission component is provided with driving units on both sides; at this time, when one of the driving units on both sides expands, the other contracts synchronously.

[0018] As an improvement to the transmission module of this utility model, when the transmission component is set as one, the conveying structure is set as a group; in this group of conveying structures, the pressure supply unit includes: a cylinder, a piston, and a linear unit; The piston has two ends located in a cylinder, and both cylinders are filled with the power medium. One end of the cylinder is connected to the drive unit on one side of the transmission component, and the other end of the cylinder is connected to the drive unit on the other side of the transmission component. The piston is connected to the linear unit, which can drive the piston to perform axial reciprocating motion.

[0019] As an improvement to the transmission module of this utility model, when multiple transmission components are provided, the conveying structure is provided as a group; in this group of conveying structures, the pressure supply unit includes: a cylinder, a piston, and a linear unit; The piston has two ends located in a cylinder, and both cylinders are filled with the power medium. One end of the cylinder is connected to the drive unit on the same side of each transmission component, and the other end of the cylinder is connected to the drive unit on the other side of each transmission component. The piston is connected to the linear unit, which can drive the piston to perform axial reciprocating motion.

[0020] As an improvement to the transmission module of this utility model, when multiple transmission components are provided, the same number of conveying structures are provided accordingly; in any one set of conveying structures, the pressure supply unit includes: a cylinder, a piston, and a linear unit. The piston has two ends located in a cylinder, and both cylinders are filled with the power medium. One end of the cylinder is connected to the drive unit on one side of the corresponding transmission component, and the other end of the cylinder is connected to the drive unit on the other side of the corresponding transmission component. The piston is connected to the linear unit, which can drive the piston to perform axial reciprocating motion.

[0021] As an improvement to the transmission module of this utility model, the transmission component is a radially extending transmission plate; and when there are multiple transmission plates, each transmission plate is arranged in a central array.

[0022] As an improvement to the transmission module of this utility model, the power medium is a gas medium or a liquid medium.

[0023] Secondly, this application provides a pivot drive mechanism, which includes the transmission module as described above; the transmission module outputs rotational driving force through a pivot connection structure.

[0024] Thirdly, this application provides an electronic product, wherein the pivoting position of the electronic product is provided with the pivoting drive mechanism as described above.

[0025] Fourthly, this application provides a motion joint, wherein the pivoting position of the motion joint is provided with the pivoting drive mechanism described above.

[0026] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model integrates the conveying structure and the power output structure into a module, which improves its versatility and adaptability, while also helping to achieve miniaturization and reduce the cost of the module.

[0027] (2) The power medium in this utility model outputs power through the elastic drive unit. At this time, the power medium is sealed in the elastic drive unit, and it is not easy to leak out from the drive unit. Therefore, it has good sealing performance and overcomes the problem of easy leakage of existing hydraulic power mechanisms.

[0028] (3) This utility model delivers the power medium through a narrower pipe and outputs power through an elastic drive unit with a larger working area. Since the cross-sectional area of ​​the pipe is smaller than the area of ​​the working surface, the rotational driving force is increased by increasing the working area under a certain pressure, thereby obtaining a larger rotational torque.

[0029] (4) This utility model provides drive units on both sides of the transmission component. When one drive unit expands, the other contracts synchronously. Thus, the two drive units can act synchronously on the transmission component in the middle, achieving good symmetry and outputting a stable rotational force.

[0030] Furthermore, even if the drive units on both sides are affected by external and / or internal conditions, the impact is synchronized because the drive units are symmetrically arranged, thereby further ensuring a stable output of rotational force over time. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1This is a three-dimensional schematic diagram of the transmission module in Embodiment 1; Figure 2 This is an exploded perspective view of the transmission module in Embodiment 1. Figure 2 Only a portion of the drive units are shown in the image; Figure 3 This is an exploded perspective view of the shell and cover plate in Embodiment 1; Figure 4 This is a three-dimensional schematic diagram of the driving unit in Embodiment 2; Figure 5 This is a three-dimensional enlarged schematic diagram of the transmission unit in Embodiment 3, which has a transmission component; Figure 6 This is a three-dimensional enlarged schematic diagram of the transmission unit in Embodiment 3, which has two transmission components; Figure 7 This is a three-dimensional enlarged schematic diagram of the transmission unit in Embodiment 3, which has three transmission components; Figure 8 This is a three-dimensional enlarged schematic diagram of the transmission unit in Embodiment 3, which has four transmission components; Figure 9 This is a schematic diagram illustrating the working principle when the transmission component is set to a single unit in Example 3. Figure 10 This is a working principle diagram when two transmission components are set in Example 3. Each transmission component shares the same set of conveying structures. The red line represents the inflow of the power medium, which causes the elastic bladder to expand, and the green line represents the outflow of the power medium, which causes the elastic bladder to contract. Figure 11 This is a working principle diagram when the transmission components are set to three in Example 3. Each transmission component shares the same set of conveying structures. The red line represents the inflow of the power medium, which causes the elastic bladder to expand, and the green line represents the outflow of the power medium, which causes the elastic bladder to contract. Figure 12 This is a working principle diagram when four transmission components are set in Example 3. Each transmission component shares the same set of conveying structures. The red line represents the inflow of the power medium, which causes the elastic bladder to expand, and the green line represents the outflow of the power medium, which causes the elastic bladder to contract. Figure 13 This is a schematic diagram illustrating the working principle when two transmission components are set in Example 3, where each transmission component corresponds to multiple sets of conveying structures; Figure 14 This is a schematic diagram illustrating the working principle when three transmission components are set in Example 3, where each transmission component corresponds to multiple sets of conveying structures; Figure 15 This is a schematic diagram of the working principle when four transmission components are set in Example 3, where each transmission component corresponds to multiple sets of conveying structures. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Example 1 This embodiment provides an overall overview of the technical solution for the transmission module. The transmission module provided in this embodiment can be used as a general-purpose accessory in products that require rotary driving force.

[0035] like Figure 1 , 2 As shown, the transmission module 100 of this embodiment includes a conveying structure 11 and a power output structure 12. Since the conveying structure 11 and the power output structure 12 are integrated into a module, its versatility and adaptability are improved, while also achieving miniaturization and reducing module cost.

[0036] The conveying structure 11 includes a pressure supply unit 111 and a power medium 112. The power medium 112 is fluid, and one end of the pressure supply unit 111 is in contact with the power medium 112. Therefore, when the pressure supply unit 111 outputs pressure, it can convey the power medium 112 to the power output structure 12, which operates under the pressure of the power medium 112. Correspondingly, a pipeline 13 for conveying the power medium 112 is provided between the conveying structure 11 and the power output structure 12.

[0037] In order for the pressure supply unit 111 to provide pressure for the conveying power medium 112, it includes: a cylinder 1111, a piston 1112, and a linear unit 1113.

[0038] The power medium 112 is located in the cylinder 1111, and one end of the piston 1112 is located in the cylinder 1111, with the side of the piston 1112 sealed to the inner wall of the cylinder 1111. Correspondingly, one end of the cylinder 1111 has an opening for the power medium 112 to flow out. The other end of the piston 1112 is connected to a linear unit 1113. The linear unit 1113 can drive the piston 1112 to perform axial reciprocating motion.

[0039] The linear unit 1113 in this embodiment is a mechanism that provides linear reciprocating power, such as an electric lead screw, a linear motor, an electric synchronous belt, an oil pump, or a water pump. To adapt to different types of linear units 1113, the other end of the piston 1112 is adaptively designed. For example, when the linear unit 1113 is an electric lead screw, the other end of the piston 1112 has meshing teeth 1114 that cooperate with the electric lead screw. When the linear unit 1113 is a linear motor or an electric synchronous belt, the other end of the piston 1112 can be connected to the linear motor or electric synchronous belt via a connector. When the linear unit 1113 is an oil pump or a water pump, the other end of the piston 1112 can be connected to it via a cam or connecting rod structure.

[0040] Therefore, when the linear unit 1113 pushes the piston 1112, the piston 1112 can push the power medium 112 in the cylinder 1111 out of the opening and deliver it to the power output structure 12; while when the linear unit 1113 pushes and pulls the piston 1112, due to the negative pressure, the piston 1112 can draw the power medium 112 in the power output structure 12 back into the cylinder 1111.

[0041] like Figure 3 As shown, to achieve a modular design for the conveying structure 11, the conveying structure 11 also includes a housing 113 and a cover plate 114. The conveying structure 11 is then housed within the space enclosed by the housing 113 and the cover plate 114. The housing 113 also has a pressure rib 115 that fits against the cylinder 1111 to aid in its fixation. Correspondingly, the pressure rib 115 has a limiting groove 1151 that mates with the cylinder 1111. Multiple pressure ribs 115 can be arranged side-by-side as needed. To facilitate the transmission connection between the piston 1112 and the linear unit 1113, the cover plate 114 also has a channel 1141 to allow the other end of the piston 1112 to extend.

[0042] The power output structure 12 is capable of outputting a pivoting force under the pressure of the power medium 112. Specifically, the power output structure 12 includes a drive unit 121 and a transmission unit 122. The drive unit 121 is hollow and elastic, and is connected to the conveying structure 11 via a pipe 13 to receive the power medium 112 conveyed by the pressure supply unit 111.

[0043] As can be seen, when the linear unit 1113 pushes the piston 1112, the power medium 112 continuously flows into the elastic drive unit 121, and the elastic drive unit 121 gradually expands; while when the linear unit 1113 pulls the piston 1112, the power medium 112 continuously flows out of the drive unit 121, and due to the negative pressure, the elastic drive unit 121 gradually contracts.

[0044] The transmission unit 122 is pivotally mounted, and the drive unit 121 is located on one side of the transmission unit 122. Thus, when the power medium 112 flows into the drive unit 121, the drive unit 121 can drive the transmission unit 122 to pivot through expansion. At this time, the power medium 112 is sealed within the elastic drive unit 121, making it difficult for it to leak out of the drive unit 121, thus providing excellent sealing and overcoming the problem of easy leakage in existing hydraulic power mechanisms.

[0045] To enable a modular design for the power output structure 12, the output structure 12 also includes a housing 123. In this case, the drive unit 121 and the transmission unit 122 are housed within the housing 123.

[0046] The power medium 112 is either a gaseous medium or a liquid medium. The gaseous or liquid medium selected is non-corrosive and has good safety characteristics. For example, the selection range for gaseous media includes air, nitrogen, inert gases, carbon dioxide, etc.; the selection range for liquid media includes water, hydraulic oil, food-grade liquids, etc.

[0047] Considering that gaseous media are more compressible than liquid media, liquid media are preferred as the power medium 112, as liquid media power medium 112 is advantageous for outputting larger and more stable forces. However, in certain situations, gaseous media can also be selected as the power medium 112.

[0048] Furthermore, to facilitate the injection of the aforementioned power medium 112, a three-way valve 14 is also provided on the pipeline 13 between the conveying structure 11 and the power output structure 12. Thus, the power medium 112 can be injected into the pipeline 13 by means of the three-way valve 14.

[0049] Example 2 This embodiment focuses on introducing the technical solution of the drive unit for the transmission module, and the relevant content in Embodiment 1 is also used in this embodiment.

[0050] like Figure 4 As shown, in order for the drive unit 121 to form a good contact with the transmission unit 122, the drive unit 121 is an elastic bladder. The elastic bladder abuts against the transmission unit 122 through at least one working surface 1211 so that it can drive the transmission unit 122 to perform pivoting motion during the expansion process.

[0051] As described in Embodiment 1, a pipeline 13 for conveying the power medium is provided between the conveying structure 11 and the power output structure 12. Thus, the power medium is conveyed through the narrower pipeline 13, and power is output through the elastic drive unit 121 with a larger working surface area. Since the cross-sectional area of ​​the pipeline 13 is smaller than the area of ​​the working surface 1211, the rotational driving force is increased by increasing the working surface area 1211 under a certain pressure, thereby obtaining a larger rotational torque.

[0052] That is, by using an elastic bladder with a larger effective surface area, it is beneficial to provide a greater rotational driving force. Based on this technical concept and taking into account the simplicity of the structure, an independent elastic bladder can be set up, and this elastic bladder has a large area after expansion.

[0053] Based on this, the length of the elastic bladder is L; the cross-section of the elastic bladder in the width direction is a regular / irregular shape formed by a circle, ellipse, polygon, or arc, or a regular / irregular shape formed by arcs and straight lines. Thus, the elastic bladder has a certain length and width, and after expansion, the surface of one side of the elastic bladder with this shape forms a large-area working surface 1211.

[0054] It needs to be explained that regular / irregular shapes formed by arcs are closed shapes formed by connecting multiple identical or different curved sides in sequence. Examples include "cloud" shapes and "leaf" shapes. Regular / irregular shapes formed by arcs and straight lines are closed shapes formed by connecting multiple curved sides and straight sides in sequence. Examples include rounded rectangles.

[0055] In a preferred embodiment, the cross-section 1212 of the elastic bladder in the width direction is fan-shaped. In this case, the plane on one side of the elastic bladder in the width direction forms the working surface 1211. In this embodiment, using an elastic bladder with a fan-shaped cross-section is beneficial for both rapid expansion of the elastic bladder and obtaining a larger working surface 1211. Based on this design, several folded structures 1213 arranged in a central array are formed on the two sides of the elastic bladder in the length direction (i.e., the cross-section in the width direction). Thus, by providing several folded structures 1213 on both sides of the elastic bladder in the length direction, rapid expansion of the elastic bladder is further facilitated, thereby achieving a better response speed.

[0056] Furthermore, the fan-shaped cross-section in the width direction is beneficial for the elastic bladder to expand at the required angle, thereby enabling the transmission unit 122 to rotate within a preset angle range.

[0057] Example 3 This embodiment focuses on introducing the technical solution of the transmission module in the transmission unit. The relevant content in Embodiments 1 and 2 is also used in this embodiment.

[0058] like Figure 5 ,6 As shown in Figures 7 and 8, the transmission unit 122 includes a pivot shaft 1221 and at least one transmission component 1222 disposed on the pivot shaft 1221.

[0059] At least one end of the pivot shaft 1221 forms a power output end 1223, meaning that one end of the pivot shaft 1221 can be connected to an external component that needs to rotate. The transmission component can be integrally connected to the pivot shaft 1221 or detachably connected. When the drive unit expands, it drives the pivot shaft 1221 to rotate via the drive transmission component 1222, thereby outputting rotational driving force.

[0060] Drive units 121 are provided on both sides of the transmission component 1222; when one of the drive units 121 expands, the other contracts synchronously. Thus, the two drive units 121 act synchronously on the transmission component 1222 in the middle, exhibiting good symmetry and enabling the output of a stable rotational force. Furthermore, the symmetrical arrangement has the advantage that even if the drive units 121 on both sides are affected by external and / or internal conditions, the impact is synchronous because the drive units 121 are symmetrically arranged, further ensuring a sustained and stable output of rotational force.

[0061] like Figure 9 As shown, in one embodiment, when the transmission member 1222 is configured as one, the conveying structure 11 is configured as a group. In this embodiment, the conveying structure 11 can convey the power medium 112 to the fan-shaped elastic bladder that serves as the drive unit 121, so as to drive the transmission member 1222 to rotate within an angular range of 0 to 180°.

[0062] For example, when the pressure supply unit 111 adopts a piston 1112 structure, it includes: a cylinder 1111, a piston 1112, and a linear unit 1113. In this case, both ends of the piston 1112 are located in a cylinder 1111, and both ends of the cylinder 1111 are filled with the power medium 112; one end of the cylinder 1111 is connected to the drive unit 121 on one side of the transmission member 1222, and the other end of the cylinder 1111 is connected to the drive unit 121 on the other side of the transmission member 1222; the piston 1112 is connected to the linear unit 1113, and the linear unit 1113 can drive the piston 1112 to perform axial reciprocating motion.

[0063] Thus, when the linear unit 1113 pushes the piston 1112 to one side, the piston 1112 can push the power medium 112 in the cylinder 1111 out of the opening and transport it to the fan-shaped elastic bladder on one side. The elastic bladder expands and drives the transmission member 1222 to pivot. Simultaneously, due to the negative pressure, the piston 1112 draws out the power medium 112 from the fan-shaped elastic bladder on the other side. The fan-shaped elastic bladder on the other side contracts while resisting the transmission member 1222, and then drives the pivot shaft 1221 to rotate stably through the transmission member 1222.

[0064] like Figure 6 , 7 As shown in Figure 8, in one embodiment, when multiple transmission members 1222 are provided, "multiple" in this embodiment specifically refers to two or more. In this case, the elastic bladders on the same side of the multiple transmission members 1222 are connected in series.

[0065] like Figure 10 , 11 As shown in Figures 1 and 12, specifically, the conveying structure 11 is configured as a group; in this group of conveying structures 11, the pressure supply unit 111 includes: a cylinder 1111, a piston 1112, and a linear unit 1113.

[0066] At this time, the two ends of the piston 1112 are respectively located in a cylinder 1111, and both cylinders 1111 are filled with power medium 112; one end of the cylinder 1111 is connected to the drive unit 121 on the same side of each transmission component 1222, and the other end of the cylinder 1111 is connected to the drive unit 121 on the other side of each transmission component 1222; the piston 1112 is connected to the linear unit 1113, and the linear unit 1113 can drive the piston 1112 to perform axial reciprocating motion.

[0067] That is, the same set of conveying structures 11 simultaneously drives the elastic bladders on the same side to expand or contract. Correspondingly, multiple branch pipes can be branched off from a main pipe and connected to the respective elastic bladders.

[0068] In an alternative embodiment, when multiple transmission members 1222 are provided, "multiple" in this embodiment specifically refers to two or more. In this case, the elastic bladders on the same side of the multiple transmission members 1222 are connected in parallel.

[0069] like Figure 13 , 14 As shown in Figures 1 and 15, specifically, the conveying structure 11 is configured in multiple sets of the same number; in any set of conveying structures 11, the pressure supply unit 111 includes: a cylinder 1111, a piston 1112, and a linear unit 1113.

[0070] The piston 1112 has two ends located in a cylinder 1111, and both cylinders 1111 are filled with a power medium 112. One end of the cylinder 1111 is connected to the drive unit 121 on one side of the corresponding transmission component 1222, and the other end of the cylinder 1111 is connected to the drive unit 121 on the other side of the corresponding transmission component 1222. The piston 1112 is connected to the linear unit 1113, which can drive the piston 1112 to perform axial reciprocating motion.

[0071] That is, multiple sets of delivery structures 11 drive the elastic bladder on the same side to expand or contract.

[0072] In order to ensure good contact between the elastic bladder and the transmission component 1222, that is, to make the interaction area between the two sufficiently large, the transmission component 1222 is a transmission plate that extends radially; and when there are multiple transmission plates, the transmission plates are arranged in a central array.

[0073] Example 4 This embodiment provides a rotary drive mechanism. The rotary drive mechanism of this embodiment includes a transmission module as described in Embodiment 1, Embodiment 2, or Embodiment 3. This transmission module outputs rotary driving force through a rotary connection structure. The pivot connection structure referred to in this embodiment is any structure capable of achieving a pivotal transmission connection, such as a slot, protrusion, bolt, screw, or connecting rod.

[0074] Example 5 This embodiment provides an electronic product. The electronic product of this embodiment includes the rotation drive mechanism as described in Embodiment 4. For example, when the electronic product is a laptop computer, the pivot drive mechanism may be located at its screen hinge or at the rotation position of the camera.

[0075] Example 6 This embodiment provides a motion joint. The motion joint of this embodiment includes the pivot drive mechanism as described in Embodiment 4. For example, when the motion joint is a joint of a human exoskeleton, the pivot drive mechanism can be located at positions such as finger joints, wrist joints, elbow joints, knee joints, and ankle joints to drive these joints to bend, straighten, and rotate.

[0076] In summary, this utility model integrates the conveying structure and the power output structure into a module, which improves its versatility and adaptability, facilitates miniaturization, and reduces the cost of the module.

[0077] In this invention, the power medium outputs power through an elastic drive unit. At this time, the power medium is sealed in the elastic drive unit, making it difficult for it to leak out of the drive unit. Therefore, it has good sealing performance and overcomes the problem of easy leakage in existing hydraulic power mechanisms.

[0078] This invention delivers the power medium through a narrower pipeline and outputs power through an elastic drive unit with a larger working area. Since the cross-sectional area of ​​the pipeline is smaller than the area of ​​the working surface, the rotational driving force is increased by increasing the working area under a certain pressure, thereby obtaining a larger rotational torque.

[0079] This invention features drive units on both sides of the transmission component. When one drive unit expands, the other contracts synchronously. This allows the two drive units to act synchronously on the central transmission component, achieving good symmetry and thus enabling the output of a stable rotational force.

[0080] Furthermore, even if the drive units on both sides are affected by external and / or internal conditions, the impact is synchronized because the drive units are symmetrically arranged, thereby further ensuring a stable output of rotational force over time.

[0081] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0082] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A transmission module, characterized in that, The transmission module includes: a conveying structure and a power output structure; The conveying structure includes: a pressure supply unit and a power medium; the power medium has fluidity, and one end of the pressure supply unit is in contact with the power medium; The power output structure includes: a drive unit and a transmission unit; the drive unit is hollow and elastic, and the transmission unit is pivotally mounted. The power medium can be driven by the pressure supply unit to flow into the drive unit or flow out of the drive unit; when the power medium flows into the drive unit, the drive unit can drive the transmission unit to perform pivoting motion through expansion.

2. Transmission module according to claim 1, characterized in that The pressure supply unit includes: a cylinder, a piston, and a linear unit; The power medium is located in the cylinder, one end of the piston is connected to the linear unit for transmission, and the other end is located in the cylinder; the linear unit can drive the piston to perform axial reciprocating motion.

3. Transmission module according to claim 2, characterized in that The linear unit is one of the following: electric lead screw, linear motor, electric synchronous belt, oil pump, and water pump.

4. Transmission module according to claim 1, characterized in that The driving unit is an elastic bladder, which abuts against the transmission unit through at least one working surface so that it can drive the transmission unit to rotate during expansion.

5. Transmission module according to claim 4, characterized in that The length of the elastic bladder is L; the cross-section of the elastic bladder in the width direction is a regular / irregular shape formed by a circle, ellipse, polygon, or arc, or a regular / irregular shape formed by arcs and straight lines.

6. The transmission module according to claim 5, characterized in that, The cross-section of the elastic bladder in the width direction is fan-shaped; the plane on one side of the elastic bladder in the width direction forms the working surface.

7. Transmission module according to claim 6, characterized in that Several folded structures are formed on both sides of the elastic capsule along its length, arranged in a central array.

8. Transmission module according to any one of claims 4 to 7, characterized in that The power medium is transported or flows out of the elastic bladder through a pipeline; the cross-sectional area of ​​the pipeline is smaller than the area of ​​the working surface.

9. Transmission module according to claim 8, characterized in that A three-way valve is also installed on the pipeline.

10. Transmission module according to claim 1, characterized in that The transmission unit includes: a pivot shaft and at least one transmission component disposed on the pivot shaft; At least one end of the pivot shaft forms a power output end, and when the drive unit expands, it drives the transmission component to rotate the pivot shaft.

11. Transmission module according to claim 10, characterized in that The drive unit is provided on both sides of the transmission component; when one of the drive units on both sides expands, the other contracts synchronously.

12. Transmission module according to claim 11, characterized in that When the transmission component is configured as one, the conveying structure is configured as a group; In this conveying structure, the pressure supply unit includes: a cylinder, a piston, and a linear unit; The piston has two ends located in a cylinder, and both cylinders are filled with the power medium. One end of the cylinder is connected to the drive unit on one side of the transmission component, and the other end of the cylinder is connected to the drive unit on the other side of the transmission component. The piston is connected to the linear unit, which can drive the piston to perform axial reciprocating motion.

13. Transmission module according to claim 11, characterized in that When multiple transmission components are provided, the conveying structure is provided as a group; In this conveying structure, the pressure supply unit includes: a cylinder, a piston, and a linear unit; The piston has two ends located in a cylinder, and both cylinders are filled with the power medium. One end of the cylinder is connected to the drive unit on the same side of each transmission component, and the other end of the cylinder is connected to the drive unit on the other side of each transmission component. The piston is connected to the linear unit, which can drive the piston to perform axial reciprocating motion.

14. Transmission module according to claim 11, characterized in that When multiple transmission components are provided, the same number of conveying structures are provided accordingly; in any one set of conveying structures, the pressure supply unit includes: a cylinder, a piston, and a linear unit; The piston has two ends located in a cylinder, and both cylinders are filled with the power medium. One end of the cylinder is connected to the drive unit on one side of the corresponding transmission component, and the other end of the cylinder is connected to the drive unit on the other side of the corresponding transmission component. The piston is connected to the linear unit, which can drive the piston to perform axial reciprocating motion.

15. Transmission module according to any of claims 11 to 14, characterized in that The transmission component is a radially extending transmission plate; and when there are multiple transmission plates, they are arranged in a central array.

16. Transmission module according to any of claims 1 to 7, 9 to 14, characterized in that The power medium is a gaseous medium or a liquid medium.

17. A pivot drive mechanism characterized by, The pivot drive mechanism includes a transmission module as described in any one of claims 1 to 16; the transmission module outputs rotational driving force through a rotary connection structure.

18. An electronic product, characterized by The electronic product is provided with a pivot drive mechanism as described in claim 17 at its rotation position.

19. A kinematic joint, characterized by, The pivot drive mechanism as described in claim 17 is provided at the rotation position of the motion joint.

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