53results about How to "Reduce design" patented technology

The utility model relates to an electrocardio watch which comprises a bottom shell, a middle frame and a transparent watch cover, the bottom shell and the watch cover are arranged at the bottom end and the top end of the middle frame respectively, a control circuit board is arranged in the middle frame, a first electrode electrically connected with the control circuit board is arranged on the bottom face of the bottom shell, a second electrode is arranged on the upper surface of the watch cover, and the first electrode is electrically connected with the control circuit board. The second electrode comprises an upper electrode part located on the upper surface of the meter cover, a lower electrode part located in the middle frame and a connecting part, the two ends of the connecting part are connected with the upper electrode part and the lower electrode part respectively, and the lower electrode part is electrically connected with the control circuit board. According to the electrocardio watch, a structure used for installing the second electrode does not need to be independently arranged on the middle frame, the occupied space of the second electrode is reduced, the watch can be designed to be thinner, meanwhile, holes or protruding electrodes are prevented from being arranged on the middle frame, and the appearance integrity of the electrocardio watch is maintained.

The turbocharger comprises a turbine shaft (1), a turbine (2) is arranged at the output end of the turbine shaft (1), a middle body (3) is arranged on the side, close to the turbine shaft (1), of the turbine (2), the turbine shaft (1) is rotationally connected to the axis of the middle body (3), an air cooling air channel (3.1) is arranged at the end, close to the turbine (2), of the middle body (3), and the air cooling air channel (3.1) is communicated with the air cooling air channel (3.1). The air cooling air channel (3.1) is in a U shape and is arranged in the circumferential direction of the turbine shaft (1). The utility model provides a turbocharger with an air cooling intermediate, which is used for cooling the turbocharger in an air cooling manner so as to reduce the production cost of the turbocharger.

This utility model discloses a compact and easy-to-assemble fan light, including a hanging assembly, a drive motor, a mounting plate, several fan blades, a light source, and an outer cover fitted over the drive motor. The drive motor and the light source are both connected to the hanging assembly. The mounting plate is connected to the output end of the drive motor and rotates with it. A mounting base is provided at the end of each fan blade. A connecting structure is provided between the mounting base and the mounting plate to connect the two. The outer cover has a recessed portion, and an inwardly recessed clearance groove on the outer side of the recessed portion to expose the connecting structure. The light source is located below the mounting plate. The clearance groove on the outer cover directly exposes the connecting structure between the fan blade mounting base and the mounting plate, allowing operators to operate directly through the clearance groove. Hands and tools can easily reach in without disassembling the outer cover. This reduces the installation difficulty for consumers, significantly improves installation efficiency, and enhances the user experience.

The invention provides a display interface module and an LED display system. The LED display system comprises an LED display module, a sending box, an interface card and a display interface module. An interface unit in the display interface module can synchronously receive a power signal and an LVDS signal, and an output unit can synchronously transmit the power signal and a TTL signal, so that compatibility of signal transmission and power transmission is realized, the number of wires and operation steps for field installation are effectively reduced, and human resource investment and installation time consumption are reduced; meanwhile, the signal conversion unit can convert the LVDS signal into a TTL signal, so that the requirement of the LED display module on the TTL signal is effectively met, and the smoothness of signal transmission is ensured; besides, the display interface module comprises a storage unit, the storage unit can be used for storing correction data of the LED display module, an independent correction storage circuit does not need to be additionally arranged on the LED display module, redundant components and circuit design are omitted, hardware cost is reduced, and optimization of a product structure is facilitated.

This invention provides an angle-of-attack control device and a passive angle-of-attack airfoil sailboat, belonging to the field of passive angle-of-attack control for rigid sails. The angle-of-attack control device includes an airfoil sail and a rotating mechanism. The airfoil sail includes an airfoil sail surface, a mast, and a base matching the mast. The mast is perpendicular to the base and rotatably connected to the base. The mast is fixedly connected to the bottom of the airfoil sail surface. The rotating mechanism is located at the top of the airfoil sail surface. The rotating mechanism includes a motor and a rotating drum. The motor includes a rotation drive component, a speed-changing component, and an output shaft. The motor is located at the top of the airfoil sail surface, and the output shaft is parallel to the mast and fixedly connected to the rotating drum. This passive angle-of-attack airfoil sailboat includes a double hull and multiple angle-of-attack control devices, which are arranged in an array on the double hull. Using the angle-of-attack control device and passive angle-of-attack airfoil sailboat provided by this invention can solve the problems of excessively large airfoil sail structures, insufficient mainsail area, and insufficient propulsion in existing technologies.

The invention belongs to the technical field of metal material deformation treatment, and discloses a metal wire random reducing continuous treatment device and method.The metal wire random reducing continuous treatment device comprises a rack, a guide rail is fixedly connected to the rack, a cross-shaped guide rail sliding table is arranged on the guide rail, an objective table is arranged on the cross-shaped guide rail sliding table, and a rolling wheel unit is fixedly connected to the objective table; the rolling wheel unit is further fixedly connected with a servo motor, the output end of the servo motor is in transmission connection with the rolling wheel unit, one end of the guide rail is fixedly connected with a front guide belt wheel unit, the other end of the guide rail is fixedly connected with a rear guide belt wheel unit, and the rack is further provided with a control unit electrically connected with the cross-shaped guide rail sliding table and the rolling wheel unit. The problems that in the prior art, variable-diameter machining cannot be continuously achieved, stress concentration is difficult to avoid, and strength uniformity is insufficient are solved.

The application discloses an integrated module, an inverter module and a motor controller. The integrated module comprises a filter module and a bus capacitor module; the bus capacitor module is integrated with the filter module, the input end of the bus capacitor module is connected with the output end of the filter module, and the filter module is arranged close to the core package of the bus capacitor module. The technical scheme of the application improves the problem of complex assembly caused by a large number of parts.

A sand core mold includes an upper core box and a lower core box integrally formed. The upper core box includes a first side and a second side opposite to each other in a first direction. The first side has a sand injection hole, and the second side is recessed to form a first sand mold groove. The lower core box includes a third side and a fourth side opposite to each other in the first direction. The third side is recessed to form a second sand mold groove. The second sand mold groove and the first sand mold groove form a cavity, which communicates with the sand injection hole. Along the first direction, the size of the cavity in the second direction gradually increases from the end closer to the first side to the end closer to the fourth side. The first direction is perpendicular to the second direction. In this application, by integrally forming the upper and lower core boxes, the number of core boxes is reduced, the mold design and manufacturing cycle is shortened, thereby reducing material and processing costs. The cavity forms a draft angle with a reverse slope, so demolding can be completed simply by separating the upper and lower core boxes, reducing the breakage rate of the sand core.

This invention discloses a time amplifier with self-cancelling quantization noise and a fractional-frequency division phase-locked loop (PLL), belonging to the field of frequency synthesis technology. The self-cancelling quantization noise time amplifier of this invention is based on a resistor-discharge type time amplifier. A control signal containing quantization error information is output through a slow-slope control signal generator to control the slow-discharge path of the time amplifier. This achieves K-fold time error amplification while simultaneously canceling fractional-frequency division quantization noise. The PLL architecture built based on this amplifier eliminates the need for a large-delay loop digital-to-time converter. The phase noise of the slow-slope control signal generator is suppressed by the time amplification gain, breaking the performance trade-off of traditional architectures. This invention achieves a low-noise, low-power, and high-linearity fractional-frequency division PLL design without degrading the performance of the time amplification phase detector.

The application relates to the technical field of integrated circuits and provides a high-speed serial interface physical IP verification platform, method, device and medium. The application provides a unified design and verification platform supporting coexistence and fusion of multiple protocol types and a multi-protocol physical layer intellectual property core design and verification, is based on a modular, parameterized, multi-protocol and harmonious coexistence design idea and a top-level architecture circuit design method, can effectively reduce the circuit design and verification manpower cost of various different protocol types in project development, significantly shortens the function and performance verification period of the physical layer intellectual property core, significantly improves the full-stack and full-field research and development efficiency of the architecture design, circuit development and full-amount function / performance verification for different protocol types, improves the design and verification platform reuse degree between different protocols, and provides an excellent paradigm of unified design and verification with high platform level.

This application relates to a roof-mounted bus air conditioner base and an air conditioner base including a replacement component. The connecting support is a replacement component. By providing connecting supports of various specifications and preset angles, one can be selected to connect the fixed frame to the first evaporator module or the second evaporator module. Because the second fixing surface, the first fixing surface, and the fixed frame form a preset angle, the relative angle between the first and second evaporator modules and the fixed frame after fixation conforms to the preset angle. Therefore, when the roof-mounted bus air conditioner base of this utility model needs to be installed on the roof of different types of buses, different connecting supports can be selected according to the specific bus size to change the angle formed between the first and second fixing parts and the fixed frame after fixation. This allows for a close fit with different types of bus roofs, ensuring necessary sealing performance, improving versatility, and reducing design and modification costs.

This utility model relates to the field of elevator technology, specifically a downward-folding elevator ceiling structure. The fixed end of the side panel is hinged to the car top support, while the open end is detachably connected to the car top support. After the side panel is opened or closed, a locking component releases the movable end of the top panel. Simultaneously, when the top panel rotates open on the car top support, an elastic element connects the car top support and the movable end, allowing the top panel to open or close only at a certain angle before fully opening. This allows the top to be opened from inside the elevator car, facilitating subsequent maintenance of the car top or situations requiring top escape. This not only saves manpower and time but also reduces the workload of maintenance personnel. The two side panels and one top panel work together, simplifying the installation structure and allowing for a thinner design, thus providing more space within the elevator car.

The application discloses an engineering tire pattern structure with equal groove width, variable pitch, low noise and full wear period, and the like, and relates to the technical field of tires. The application breaks through the technical bottleneck of single performance, inconsistent performance of each pitch, uneven wear, poor structural reliability and low universality in the design of a traditional engineering tire variable pitch, and through integrated innovative design of equal groove width basic design+density differentiation matrix solid convex point+three-order universal pitch proportion, the application realizes the coordinated consideration of low noise, performance consistency, uniform wear and structural reliability, and is suitable for the use requirements of engineering tires in heavy load and multiple working conditions in all directions.

The utility model provides a kind of multi-channel high integration low-cost tile type transmitting assembly, including tile type shell, input interface, microstrip line located in tile type shell interior and input interface are sequentially connected, microwave composite multilayer board, two branch networks are connected on microwave composite multilayer board and with microstrip line output end connection, first drive power amplifier, second drive power amplifier are respectively connected with the two output ends of two branch networks, first eight branch networks are connected with the output end of first drive power amplifier, second eight branch networks are connected with the output end of second drive power amplifier, 16-way transmitting channel and radio frequency output port connected with transmitting channel output end are respectively connected with the output end of first eight branch networks, second eight branch networks, the number of radio frequency output port is 16.The utility model is X frequency band 16 channel tile type high integration, high reliability, high consistency and with power amplification, numerical control phase shift and output detection etc. The utility model discloses a kind of multi-channel high integration low-cost tile type transmitting assembly, including tile type shell, output interface, microstrip line located in tile type shell interior and output interface are sequentially connected, microwave composite multilayer board, two branch networks are connected on microwave composition multilayer board and with microstrip line output end connection, first drive power amplifier, second power amplifier are respectively connected with the two output ends of two branch networks, first eight branch networks is connected with the output end of first drive power amplifier, second eight branch networks is connected with the output end of second drive power amplifier, 16-way transmitting channel and radio frequency input port connected with transmitting channel output end are respectively connected with the output end of first eight branch networks and second eight branch networks, the number of radio frequency input port is 16.

The utility model discloses a starlight projection lamp which comprises a lamp holder, a battery bin is reserved in the middle of the bottom end of the lamp holder, a storage battery is installed in the battery bin, a cover plate is installed at the bottom end of the battery bin, a lampshade is installed on the periphery of the top end of the lamp holder, and star-shaped and moon-shaped light holes are formed in the lampshade. A projection lamp panel is mounted in the middle of the top end of the lamp holder. The projection lamp has the advantages that the battery bin is reserved at the bottom end of the lamp holder, and the storage battery and the cover plate are installed in the battery bin, so that the projection lamp can get rid of limitation of the position of an external power source when used, it is ensured that the projection lamp can be flexibly placed and used according to the actual projection requirement of a user, the use flexibility is better, and the use effect is better. And meanwhile, the lamp holder and the lampshade are assembled into a whole, so that the design of a lamp bracket is omitted, and the projection lamp is more convenient to carry when going out.

This utility model relates to a gas-fired trolley-type heater with internal denitrification, comprising a furnace body with several main burners mounted on it. The main burners are arranged in pairs facing each other, forming a group. The reversing valves of the two facing main burners are in different operating states, allowing them to operate in different states. Several environmentally friendly small burners are distributed on the furnace body wall, spaced apart from the main burners. The main burners and the environmentally friendly small burners are connected to a fuel pipe via a control valve assembly. This utility model, by incorporating environmentally friendly small burners to form small burner groups, works in conjunction with burner groups consisting of two or four burners to efficiently treat nitrogen oxides within the furnace body, significantly reducing the content of nitrogen oxides and other harmful substances in the flue gas and improving the heater's performance.

The application discloses a method for designing and controlling relative motion configuration of spacecraft formation in the Earth-Moon libration point orbit, and belongs to the technical field of spacecraft orbit dynamics and control. The method firstly constructs a double-level dynamics model composed of a circular restricted three-body problem model and a high-precision ephemeris model, and defines the orbit amplitude difference and phase difference as configuration parameters; then, according to different combinations of the orbit amplitude difference and phase difference, three types of natural relative motion configurations are set, periodic orbits are quickly generated under the circular restricted three-body problem model, and multiple turns are corrected by using the high-precision ephemeris model and two-stage multiple shooting; for the controlled tasks of fixed position, plane and space encirclement, a hierarchical constraint model is established, and a two-stage optimization strategy is adopted to solve the control pulse. The application realizes efficient design and stable control of the formation configuration in a complex dynamics environment, and is suitable for various libration point orbit tasks.

The utility model relates to a two-way transport cableway belt conveyor, and belongs to the technical field of material conveying. Comprising a conveying device, a driving device and a circulating cableway system, the conveying belt is wound on the head roller and the tail roller and is lapped end to end to form a closed loop; the driving device is arranged beside the head roller so as to drive the conveying device to transmit; the circulating cableway system comprises a head roundabout device, a tail roundabout device and a plurality of hanging brackets; the head roundabout device and the tail roundabout device are connected through two bearing cables arranged in parallel, the tops of a plurality of hanging brackets are connected to the bearing cables in a sliding mode through pulleys, and the bottoms of the hanging brackets are arranged on the lower side of the conveying belt in a hooking mode, so that the conveying belt is hung on the bearing cables through the hanging brackets and moves along the bearing cables through the hanging brackets. The characteristics of the belt type conveying technology and cableway conveying are fully combined, so that materials borne on the conveying belt are conveyed, and the belt type cableway conveying device has the advantages of being small in occupied area, low in one-time investment cost, small in conveying resistance, low in operation cost and the like.

The lifting device comprises at least one continuous anode, the periphery of the continuous anode is sleeved with a clamping frame, a plurality of anode guide rods are arranged between the clamping frame and the continuous anode, and a pressing mechanism enabling the anode guide rods to make contact with the continuous anode is installed on the clamping frame. A lifting mechanism is arranged at the upper end of the clamping frame and comprises a first driver, a second driver and a lifter, a lifter connector connected with the second driver is arranged on the upper portion of an output shaft of the lifter, an anode bus is arranged on the outer side of the anode guide rod, and a soft belt connected with the anode bus and the anode guide rod closest to the anode bus is arranged between the anode bus and the anode guide rod. According to the invention, the synchronism of the continuous anodes is ensured, the accuracy of electrode distance and cell voltage control is improved, the thermal balance of the electrolytic cell is maintained, the energy consumption is reduced, the current efficiency is improved, and the technical problems in controlling the electrode distance and regulating and controlling the distance between an anode guide rod and an aluminum oxide crust are thoroughly solved.

The utility model discloses a secondary battery, a battery pack and a power utilization device, the secondary battery has a first direction and comprises a shell, an electrode assembly and a top cover assembly, the shell has a containing cavity, the electrode assembly is arranged in the containing cavity, the electrode assembly comprises a battery cell and a tab, and the tab is connected with the battery cell; the top cover assembly comprises an electrode terminal, the electrode terminal comprises a body and a clamping part, the body is provided with a through hole, the through hole penetrates through the body along a first direction, and the tab is arranged in the through hole in a penetrating manner; and the clamping part is connected with the body, covers and seals the part of the through hole, and is propped against the tab. According to the secondary battery, the tabs penetrate through the through holes in the electrode terminals and are connected with the electrode terminals, so that the design of an adapter plate is omitted, the occupation of the tabs on the height space of the battery is effectively reduced, and the volume energy density of the secondary battery is favorably improved. Meanwhile, by arranging the clamping part, the tab can be clamped and fixed, the tab loosening and the tab insertion caused by the overlarge size of the through hole are prevented, and the welding safety of the tab and the electrode terminal is improved.

The present application relates to a design method of the vibration isolation parameters of a shield pump of a high-speed train traction converter cooling system, and belongs to the field of rail vehicle vibration isolation. The present application builds a simulation model for optimizing the vibration isolation stiffness and damping parameters of the shield pump of the high-speed train traction converter cooling system by coupling the influence of the under-vehicle equipment, takes track high-low irregularities as the input excitation, and takes the minimum root mean square value and vibration intensity of the vertical and nodding vibration acceleration of the shield pump of the traction converter cooling system as the design target, to optimize the design and obtain the vibration isolation stiffness and damping of the shield pump of the traction converter cooling system. The simulation verification by SIMPACK shows that the method can obtain accurate and reliable design values of the vibration isolation stiffness and damping parameters of the shield pump, and provides a reliable design method for the design of the vibration isolation parameters of the shield pump of the high-speed train traction converter cooling system. The method can improve the product design level and quality, the operation reliability of the high-speed train traction converter cooling system, and reduce the product design and test cost.

The utility model provides a vehicle-mounted shed body convenient to store, and relates to the field of vehicle-mounted accessories. The vehicle-mounted shed body comprises a storage box provided with an opening; the winding roller assembly comprises a winding roller drum and a curtain, the winding roller drum is rotatably arranged in the storage box, and the curtain is wound around the winding roller drum; the horizontal support comprises a cross rod and a first telescopic rod, the cross rod is connected with the outermost end, wound around the winding roller, of the curtain, one end of the first telescopic rod is hinged to the interior of the storage box, and the other end of the first telescopic rod is detachably connected with the cross rod; the number of the first telescopic rods is two, and the first telescopic rods are located at the two ends of the transverse rod respectively. The vertical support comprises a second telescopic rod, one end of the second telescopic rod is hinged to the cross rod, and the other end of the second telescopic rod is used for grounding supporting when the cross rod penetrates out of the storage box; the two second telescopic rods are located at the two ends of the transverse rod correspondingly. The first telescopic rod replaces a traditional folding arm, and the problem that the stacking size of multiple rod bodies is large is solved.

The invention provides a dynamic mapping configuration method and device for a storage and calculation fusion vector register. According to the method, for in-memory calculation, firstly, a physical storage space of an SRAM storage and calculation fusion array is mapped into a logic vector register file structure, and on this basis, a dynamic mapping device from a logic vector register to the physical storage space in a general instruction set is achieved. When a new vector calculation task is executed, only the task needs to be compiled to a general vector instruction set, and a logic vector register required by a general instruction can be directly mapped to a specific SRAM physical storage space by utilizing the method and the device, so that the storage and calculation fusion operation can be executed by utilizing a storage and calculation fusion array; and the overhead of programming design is obviously reduced. According to the method, the number and the length of the vector registers in the vector register file structure can be changed under the condition that hardware resources are not changed, so that different applications are efficiently adapted.

The utility model discloses antibody reagent refrigeration equipment, which belongs to the technical field of antibody reagent storage and comprises refrigeration tanks, a driving component is mounted on one side of each refrigeration tank, an output shaft of each driving component is fixedly connected with a rotating shaft, and each rotating shaft is rotatably connected onto the corresponding two refrigeration tanks through two bearings. A plurality of elastic structures are fixedly connected to the two sides of the outer portion of the rotating shaft, and a containing frame is connected between the two elastic structures. According to the antibody reagent refrigeration equipment, the driving assembly, the rotating shaft, the elastic structure, the concave-convex plate and the balls are arranged, the driving assembly drives the rotating shaft to rotate, so that the rotating shaft drives the elastic structure to rotate, the balls slide on the concave-convex plate, the concave-convex surface is designed on the concave-convex plate, and the elastic structure can drive the balls to move left and right; the elastic structure drives the reagent tube in the placing rack to shake, so that the reagent can be kept in an active state, and precipitation is avoided.

This application discloses a diaphragm pump, comprising: an integrated plunger rod, a motor, a worm gear, a diaphragm, a cylinder liner, a connecting rod, an eccentric block, and a slide rod, all installed within a housing. The motor, coupling, worm gear, connecting rod, eccentric block, and worm wheel are housed within the drive cavity of the housing; the diaphragm, integrated plunger rod, and cylinder liner are housed within the solution extrusion cavity of the housing. Using this pump body can effectively improve the shear stress concentration resistance of the plunger rod during operation without affecting transmission performance, thus reducing the possibility of plunger body breakage during operation. In actual use, no breakage has been observed during routine inspections for over four years.

The invention discloses a vehicle cloud protocol matching method and related equipment, and relates to the technical field of communication, and the method comprises the steps: obtaining vehicle cloud protocol version information issued by a vehicle end on a preset protocol negotiation theme; based on the vehicle cloud protocol version information, determining a target vehicle cloud protocol matched with the vehicle cloud protocol version information from a plurality of pre-deployed candidate vehicle cloud protocols; and performing data interaction with the vehicle end based on the target vehicle cloud protocol. According to the invention, the cloud uniformly subscribes to the multi-version protocol, the vehicle end releases the actual protocol version in real time, the dynamic protocol negotiation between the vehicle and the cloud is realized based on the subscription release mode, and the data interaction is carried out according to the matched version after the negotiation is consistent. Therefore, a vehicle cloud protocol synchronization mode is converted from full-amount compatibility in advance into on-demand dynamic matching, flexible management of protocol versions is realized, system implementation complexity and communication overhead are reduced, and reliability and maintainability of vehicle cloud collaboration are improved.

The utility model relates to the field of precision casting, and specifically discloses a multifunctional shell making tool for large gas turbine blades, which comprises a force-bearing flat plate, the force-bearing flat plate is provided with a sliding groove, a sliding member is slidably connected in the sliding groove, a wax mold fixing member is detachably connected to the sliding member, a mechanical hand connecting member is fixedly connected to the force-bearing flat plate, and overturning connecting members are fixedly connected to the two sides of the force-bearing flat plate; the utility model can simultaneously make shells for blades with different numbers of pieces on one shell making tool, improves production efficiency, reduces the shell making tool design and manufacturing links for different types of blades, reduces the research and production costs of the tool, simultaneously reduces the storage and management costs of the tool, realizes shell making for different types of blades, expands the application range of the tool, effectively guarantees the stability of the shell during the shell making process, significantly reduces the size deformation of the castings, ensures that the product size precision meets high standard requirements, and improves product quality.

The utility model discloses a loading and unloading unit of an automatic spindle loading and unloading device. The loading and unloading unit comprises a sliding bracket, an adjusting frame and a push-pull assembly, a plurality of supporting rods are arranged on the sliding bracket, every two supporting rods form a group to form a supporting station, the supporting rods are movably inserted into an adjusting frame, and the adjusting frame is rotatably arranged on the frame; the push-pull assembly comprises a main push cylinder, a push plate and an auxiliary push cylinder; the main push cylinder is arranged on the adjusting frame; a push rod of the main push cylinder is connected with the sliding bracket; the auxiliary pushing cylinder is arranged on the sliding bracket, the pushing plate is connected to a pushing rod of the auxiliary pushing cylinder, and the pushing plate is located above the supporting rod of the supporting station; when the spindles are loaded, the main pushing cylinder drives the sliding bracket, and the auxiliary pushing cylinder drives the pushing plate to push the spindles into the working positions of the spindle shafts in a step-by-step pushing mode. Spindles are loaded in a step-by-step propelling mode, the requirement for the length of a spindle shaft is lowered, the loading efficiency of the spindles is improved, and the spindle loading device is suitable for old machine transformation projects.

This invention relates to an integrated mandrel and a rotary transmission device with an integrated mandrel, belonging to the field of conductive slip ring technology. It solves the technical problem that the quality of electric slip rings is heavily dependent on the precision of machining and assembly processes, and that the transmission lines on the conductive ring are easily damaged, leading to reduced transmission quality. The integrated mandrel of this invention includes a mandrel base, pads, conductive pins, and transmission lines. Multiple sets of axial outlet holes, pin holes, and pads are evenly distributed circumferentially on one end face of the mandrel base. Multiple V-grooves are evenly distributed axially on the mandrel base, and each V-groove has a radial outlet hole at its bottom. The transmission line is disposed within the mandrel base, with both ends connected to the axial and radial outlet holes. The rotary transmission device with an integrated mandrel of this invention includes an integrated mandrel, a quick-connect body, a brush unit, a fixing frame unit, a mandrel connecting ring, and an external wire-connected connector. The integrated mandrel of this invention has a simple structure and can be flexibly customized; the rotary transmission device has good transmission performance.