458 results about "Head holder" patented technology

The invention relates to a carsickness control method, a storage medium, a program product, equipment, a system and a vehicle, and relates to the technical field of vehicles. The carsickness control method comprises the steps that under the condition that it is determined that a first user is in a carsickness state based on a first electroencephalogram signal, carsickness suppression operation is executed; wherein the first user is a user using the first headrest, and the first electroencephalogram signal is an electroencephalogram signal collected by the first headrest for the first user. The carsickness state can be intelligently detected in real time and effectively relieved in time, and the carsickness state of the user can be efficiently detected and relieved.

The present invention discloses a technology for measuring brain function suitable for an infant or a moving subject who cannot be controlled easily during measurement. One embodiment of the present disclosure pertains to an ultrasound device that comprises: multiple ultrasound probes that receive / transmit ultrasound signals from / to multiple brain areas via multiple head regions and are disposed corresponding to the respective head regions; a control unit that controls the respective ultrasound probes; and an image processing unit that generates brain function network information calculated from blood flow states among the respective brain areas based on measurement results acquired from the respective ultrasound probes.

A liquid discharge system includes: a first head having a first nozzle, from which a liquid is to be discharged, on a first nozzle face oriented in a first direction; a second head having a second nozzle, from which a liquid is to be discharged, on a second nozzle face oriented in a second direction different from the first direction; a head holder holding the first head and the second head; a first sealer configured to contact and seal the first nozzle face; a second sealer configured to contact and seal the second nozzle face; a first cleaner configured to clean the first nozzle face in a state where the first sealer has contacted and sealed the first nozzle face; and a second cleaner configured to clean the second nozzle face in a state where the second sealer has contacted and sealed the second nozzle face.

The utility model relates to the field of medical instruments, in particular to an auxiliary sleep device with a sound wave hypnosis function, which comprises a base, a support block, a seat, a backrest, a headrest, an electric push rod and the like, the upper side of the middle of the base is connected with the support block, the upper side of the support block is connected with the seat, the left part of the seat is rotatably connected with the backrest, and the upper side of the backrest is connected with the headrest. The left part of the backrest is rotationally connected with an electric push rod. The window shade is put down by pushing the connecting frame to move and then reversely pulling the pull bead chain, and then sound waves are sent out by the ultrasonic sleep aiding device for hypnosis to assist sleep, so that the sound waves can be used for hypnosis of a user to assist sleep, relax the brain and accelerate falling asleep, and meanwhile, the window shade can be used for shading. A user is in a dark environment, light stimulation is avoided, the sleep quality is improved, and use is convenient.

There is provided a conveyance seat that allows speakers to be easily assembled to a headrest. A conveyance seat includes a headrest; and right and left speakers provided inside the headrest. The headrest includes a speaker assembly provided inside the headrest and configured to assemble the speakers. The speaker assembly includes right and left speaker holding portions that are provided at right and left side portions of the headrest, and that hold the right and left speakers, respectively, in a state where the right and left speakers are exposed to a seat front side, and a connecting portion that connects the right and left speaker holding portions, and that is formed integrally with the right and left speaker holding portions.

The invention relates to the technical field of automobile seat headrests, in particular to an automobile seat folding headrest mechanism, an automobile seat and a method, an arc-shaped rod is arranged to penetrate through an opening of a shielding part, when a headrest is folded and reset, the arc-shaped rod can achieve arc-shaped rotation of a headrest rod, and the headrest can be folded and reset relative to a straight rod. The opening of the shielding piece can have a small opening size, the gap between the shielding piece and the periphery of the headrest rod is small, when the headrest rotates forwards to be folded, the arc-shaped rod moves along an arc line, it is ensured that the stroke of the headrest rod is always kept within the range of the rectangular hole of the shielding piece, the appearance of the shielding mechanism is not affected while the requirement for folding movement of the headrest is met, and the shielding mechanism is convenient to use. And the protection effect on the folding mechanism is also facilitated.

The present disclosure discloses a vehicle headrest including a main body having a receiving chamber and a first sound hole, and a speaker module including a housing fixed to the main body and including a sound outlet, a speaker unit including a diaphragm, and an acoustic inverting tube. The housing further comprises a back sound hole communicated with the coupling back cavity; the acoustic inverting tube is received in the coupling back cavity. The sound wave output from the back sound hole has a first sound phase, the sound wave output from the sound outlet has a second sound phase, a difference between the first sound phase and the second sound phase is in a range of 2π / 3-4π / 3. The vehicle headrest in the present disclosure has better sound quality and higher acoustic privacy.

A seat assembly is provided. The seatback for a first seat is configured to receive an occupant in a vehicle. A headrest is coupled to the seatback and includes at least one loudspeaker and a lattice structure. At least one loudspeaker is positioned in the headrest and is configured to transmit an audio output signal from the headrest. The lattice structure includes a first section positioned proximate to the at least one loudspeaker to enable the audio output signal to pass therethrough and a second section to prevent the audio output signal from leaking to a second seat. The first section is formed at a first density and the second section is formed at a second density. The first density of the first section is less than the second density of the second section to increase an acoustic transparency of the audio output signal.

Described herein are methods and systems for a vehicle system which provide inbuilt road noise cancellation in the vehicle. In one or more embodiments, a method for road noise cancellation comprises using a head-tracking device to monitor an occupant ear position, capturing airborne noise using a feedforward microphone and a headrest microphone of a zone in which the occupant ear is positioned, updating acoustic path information according to the occupant ear position(s) and speaker position(s) within the zone, generating a noise cancellation signal using sampling rate greater than 2 kHz, and outputting the noise cancellation signal via a headrest speaker located near the zone in which the occupant ear is positioned to at least partially reduce a road noise sound level in the zone.

A system for positioning and monitoring an animal during microscopy may include a base supporting the animal, a head holder attached to the base and securing the animal's head, a body holder attached to the base and restraining the animal's body, at least one sensor measuring a physiological parameter of the animal, and a controller receiving and processing data from the at least one sensor. The base may comprise a scissor lifting jack for height adjustment. The head holder may include a ball joint for angular adjustment. The body holder may comprise a swaddle. Sensors may include an accelerometer to detect motion and a thermocouple to measure cranial window temperature. The system may also include a camera to capture images during microscopy.

The invention discloses a transmission path grading detection and reference sensor selection method based on in-vehicle active noise control, and belongs to the field of active noise control. The method comprises the steps that sensors are arranged at suspension rod pieces of a to-be-tested automobile, and microphones are arranged at seat headrests of the to-be-tested automobile; obtaining an error noise signal collected by the microphone and a reference vibration signal collected by the sensor when the to-be-tested automobile runs under the test working condition; a main control area and a reference vibration signal group are selected, and sensors corresponding to reference vibration signals which are not selected into the reference vibration signal group are removed; according to the method, sensors are arranged at wheel centers, a front auxiliary frame and a rear auxiliary frame of a to-be-detected automobile, error noise signals and reference vibration signals are obtained, L reference vibration signals with the highest multi-coherence are obtained through traversal optimization, and finally active noise control is conducted through a road noise active control system on the basis of the L reference vibration signals. According to the invention, the integrity and the feasibility of transmission path detection are improved, and the test cost is also saved.

This invention discloses a centerless cylindrical grinding machine device for valve guides, belonging to the field of valve guide grinding. The device is used for infeed grinding of valve guides and includes a machine table, an adjusting frame and a grinding head holder respectively disposed on both sides of the machine table, and a workpiece support frame disposed between the adjusting frame and the grinding head holder and fixedly mounted above the machine table. This invention achieves axial elastic limiting of the valve guide through a clamping assembly and a reversing assembly, and, in conjunction with radial support from the workpiece support frame, effectively suppresses grinding movement and wobble of slender workpieces, improving grinding stability, coaxiality, and dimensional accuracy. After processing, it can automatically switch to a clamping and transfer mode for automatic unloading, achieving a high degree of automation. Simultaneously, cutting fluid can be directionally introduced into the inner hole of the valve guide and overflowed from a high position, forming internal convection heat transfer and significantly improving the cooling effect. After grinding, by flipping the drain hole, residual fluid in the inner hole is quickly drained by gravity, further stabilizing machining accuracy.

The invention relates to the technical field of circuit testing, in particular to a music headrest production testing tool which comprises a testing table, the upper end of the testing table is fixedly connected with a supporting frame, the middle of the supporting frame is fixedly connected with a display screen, the upper end of the testing table is fixedly connected with a positioning block, and the side end of the positioning block is fixedly connected with a clamping block. An arc-shaped concave surface is arranged at the upper end of the positioning block, a clamping groove is formed in the upper end of the clamping block, the positioning block and the clamping block are matched with each other to be used for positioning and fixing the headrest, a communicating column is fixedly connected to the side end of the headrest, a clamping groove is formed in the outer side wall of the communicating column, a conductive column is fixedly connected to the interior of the communicating column, and the conductive column is connected with a sound box in the headrest. According to the invention, the connection between the test structure and the conductive column can be tighter, the repeated resistance of the conductive column is more convenient, and the detection efficiency is improved.

1. Name of the product in this design: Chair headrest (801). 2. Purpose of this design: For use as a headrest for a chair. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.

The utility model relates to the technical field of medical appliances, and discloses an auxiliary fixing base for installing a head frame of a brain stereotactic apparatus, which comprises a base body, and a fixing groove for clamping and fixing the head frame of the brain stereotactic apparatus and a headrest part for supporting the head of a patient are arranged on the top surface of the base body. The utility model provides an auxiliary fixing base for installing a head frame of a brain stereotactic instrument, which comprises a base body, a fixing groove which is arranged on the top surface of the base body and can be used for clamping and fixing the head frame of the brain stereotactic instrument, and a headrest part which is used for supporting the head of a patient, therefore, the problem that the head frame is deflected to influence the operation effect due to shaking when the head frame of the brain stereotactic instrument is installed can be fundamentally solved, absolute stability and safety in the operation process are ensured, more comfortable treatment experience is brought to a patient, and the success rate and the treatment effect of the operation are remarkably improved.

The utility model discloses a chair back and a seat. The chair back comprises a back frame, an elastic belt and a physiotherapy bag. Two ends of the elastic band are fixedly connected to the back frame. The physical therapy bag has flexibility and is installed on the elastic band, and the elastic band can be bent after being subjected to external force so that the physical therapy bag can be bent. Head contours and sizes of different users are different, a headrest structure in the prior art is fixed, a physical therapy bag in the headrest structure is also fixed in shape, only the fixed part can be subjected to physical therapy, and the headrest cannot be adaptively attached to the heads of different sizes and shapes for physical therapy. According to the chair back disclosed by the embodiment of the utility model, the elastic band is arranged at the upper end of the back frame, and the flexible physiotherapy bag is arranged on the elastic band, so that when the head of a user leans on the elastic band, the elastic band deforms to drive the physiotherapy bag to deform together, the physiotherapy bag can be bent and better attached to the head, and the physiotherapy effect is improved.

The utility model relates to the technical field of office chairs, in particular to a connecting rod linkage folding type headrest office chair adjusting mechanism which comprises an office chair adjusting mechanism body and an office chair, the office chair adjusting mechanism body is arranged on the office chair, a positioning headrest plate is arranged on the office chair adjusting mechanism body, and the connecting rod linkage folding type headrest office chair adjusting mechanism is arranged on the office chair adjusting mechanism body. The two sides of the positioning headrest plate are connected with folding headrest plates respectively, hinge shafts are installed between the folding headrest plates and the positioning headrest plate, the positioning headrest plate is of a U-shaped structure, an adjusting positioning seat is integrally arranged on the portion, on the inner side of the U-shaped structure, of the back of the positioning headrest plate, and the interior of the adjusting positioning seat is of a transverse through structure. According to the connecting rod linked folding headrest office chair adjusting mechanism, a basic positioning structure is formed through the positioning headrest plate, the rotatable folding headrest plates are arranged on the two sides of the positioning headrest plate, the neck supporting part can be limited, meanwhile, adjusting treatment is conducted in a connecting rod linkage mode, operation is convenient, and use is easy.

This invention provides a car seat headrest speaker, including a microcontroller, a digital signal processor, a power amplifier chip, and two pins. The power amplifier chip is connected to a speaker and the digital signal processor; the digital signal processor is connected to the microcontroller; and the microcontroller has a Bluetooth transceiver. The speaker is detachably connected to the car seat headrest. The two pins connect to the vehicle's infotainment system, through which the microcontroller receives CAN protocol signals and controls the Bluetooth transceiver to enter TWS pairing mode based on the CAN protocol signals. This invention achieves multi-scenario speaker use through a detachable design and utilizes physical pins to transmit CAN bus signals to activate TWS pairing, solving the problems of existing car audio systems being non-detachable and limited in use scenarios. While ensuring driving safety, it enhances the auditory immersion and interactive experience for drivers and passengers.

The utility model provides an anti-stirring cotton massage structure which comprises a motor and more than one massage head driven by the motor, the output end of the motor is connected with the massage head through a rotating shaft, the massage head comprises a base connected with the rotating shaft and a plurality of massage blocks which are installed on the base and are different in size, and the massage blocks are connected with the rotating shaft. One end, far away from the base, of the massage block is a planar contact surface; a shield is installed outside the rotating shaft, one end of the shield is connected to the face, close to the motor, of the base and the face, close to the motor, of the massage block, the other end of the shield is connected to the end, close to the motor, of the rotating shaft, and the cotton stirring phenomenon can be effectively prevented. The utility model further provides a massage electronic sports chair with the anti-stirring cotton massage structure, the positions and the forward and reverse directions of the massage headrest and the massage waist bag can be conveniently adjusted, and the use comfort is higher.

1. Name of the design product: Shower head holder (3). 2. Use of the design product: This design product is used for a shower head holder. 3. Design key points of the design product: lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view 1.

The utility model discloses a double sleeping bag convenient to fix, and belongs to the technical field of sleeping bags. Comprising a double sleeping bag body, a partition sewn on the inner side of the double sleeping bag body, a sleeping bag cap connected to a bag opening of the double sleeping bag body in a sewn mode, a headrest arranged on the sleeping bag cap and a zipper installed on the side wall of the bag opening of the double sleeping bag body. A first nylon belt and a second nylon belt are symmetrically connected to the edge of the lower surface of the double sleeping bag body in a sewn mode, through holes are formed in the end of the first nylon belt and the end of the second nylon belt, and metal retaining rings are installed on the inner sides of the through holes. When the double sleeping bag is used outdoors, a tool is matched with the screwing grooves to enable the ground nails to be nailed into the ground through the threads, and the double sleeping bag body can be conveniently fixed.

The invention relates to the field of medical treatment, and discloses a stem cell injection structure and a neurosurgery operation head frame. The device comprises an injection support, a lifting part, an injection pressing assembly, an injection driving assembly and an injector, and the lifting part and the injection pressing assembly are both in sliding connection with the injection support and are arranged at intervals; a needle cylinder of an injector is detachably fixed to the lifting piece, and a piston rod of the injector abuts against the injection downward-pressing assembly. The injection driving assembly is movably connected with the injection support, and the lifting piece and the injection pressing assembly are both connected with the injection driving assembly. When the injection driving assembly operates, the injection driving assembly drives the lifting piece and a needle cylinder of the injector to move in the direction close to the injection pressing assembly, and meanwhile drives a piston rod of the injector to synchronously move in the direction close to the lifting piece. The effect that constant-speed injection and constant-speed lifting quit are achieved at the same time is achieved, and the overall density of an injected object is uniform; the precision of the injection content is improved; the injection content can be more easily and accurately controlled; and the treatment effect is improved.

The application belongs to the technical field of mechanical equipment, and particularly relates to a driving device and a control method of a sliding cutter holder of a bar cutting machine, wherein the driving device comprises a machine head holder, a cutter holder oil cylinder, a reset oil cylinder and a sliding cutter holder sliding on the machine head holder, the cutter holder oil cylinder and the reset oil cylinder are arranged on the machine head holder, the cutter holder oil cylinder and the reset oil cylinder are single-acting oil cylinders, the cutter holder oil cylinder and the reset oil cylinder directly or indirectly act on the sliding cutter holder to realize the reciprocating movement of the sliding cutter holder, the cutter holder oil cylinder and the reset oil cylinder of the application are single-acting oil cylinders, only the advance is considered, that is, when the telescopic rod of the cutter holder oil cylinder is extended to drive the sliding cutter holder to move, the telescopic rod of the reset oil cylinder is also retracted, vice versa, that is, when the telescopic rod of the reset oil cylinder is extended to drive the sliding cutter holder to move, the telescopic rod of the cutter holder oil cylinder is also retracted, the oil consumption in single action is reduced, the action speed of the oil cylinder is fast, the shearing times are increased, the cost is effectively reduced, and the work efficiency is improved.

The utility model relates to the technical field of wig head supports, and discloses a wig head support and a head support box, which comprise a wig head support, a wig head support groove and a head support box, the wig head support and the wig head support groove are integrally formed by injection molding, the wig head support and the wig head support groove are made of foaming materials, the wig head support is placed in the head support box, a groove is arranged in the head support box, and the wig head support is arranged in the groove. The head support box is divided into an upper cover and a lower bottom, and a fixing assembly is arranged in the head support box; wherein the fixing assembly comprises a fixing rod, the fixing rod is fixedly connected to the interior of the groove, a connecting groove is formed in the outer surface of the head support box, and a rotary knob is rotationally connected to the interior of the connecting groove, so that the groove and the rubber plate are matched with each other, and the wig head support is further fixed. The situation that the wig head support shakes to move out of the groove and collides with the head support box due to jolting on the road, and consequently the wig is unnatural and messy is avoided, and practicability is improved.

1. The name of the design product: chair clothes hanger. 2. The use of the design product: installed on the headrest of the chair, the backrest of the chair or the support of the backrest of the chair, as a chair clothes hanger, used for hanging clothes, handbags, bags and other articles. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model discloses a quick locking structure of a ball bowl holder and a support frame. The quick locking structure comprises a mounting seat, a locking block and a driving assembly, a through groove arranged in the height direction and a locking groove communicated with the through groove are formed in the mounting seat; the locking block is movably arranged in the locking groove, and a threaded groove is formed in the locking block in the height direction; the driving assembly is arranged on the mounting seat and is connected with the locking block; the locking block can move towards the screw rod when the driving assembly is in the locking position, so that the threaded groove is meshed with the screw rod to limit the relative movement between the screw rod and the locking block; or the locking block can move back to the screw rod when the driving assembly is located at the unlocking position, so that the threaded groove is separated from the screw rod, and the screw rod can move relative to the locking block; through the structure, the screw rod can be quickly locked, so that the ball bowl holder can be quickly disassembled and assembled, and the ball bowl holder has very good practicability.

1. Name of the product in this design: Car headrest speaker (VM-244). 2. Purpose of this design: For use as a headrest in a car seat, and it can play audio. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: 3D image of component 1. 5. Other situations requiring explanation: Component 1 is the headrest speaker, and component 2 is the controller for the headrest speaker.

1. Name of the designed product: shower holder (goldfish). 2. Use of the designed product: fixing shower. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The utility model discloses a kind of child used radiology department CT head fixator, including support body, fixed helmet, support body is inclined T-shaped structure, support body lower end is equipped with connecting plug, the T-shaped head of support body is equipped with inward recessed installation area, fixed helmet is fixed in installation area, fixed helmet is half-enclosed sphere, fixed helmet is set through front and rear, air bag is symmetrically equipped in fixed helmet inside two sides, sponge pad is covered in fixed helmet body interior and outer edge chamfer and soft package processing, the utility model has the advantages of: improve fixing effect, convenient to use, improve the comfort in the process of children examination.