233 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.

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.

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.

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 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.

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.

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.

The embodiment of the invention discloses a multi-loudspeaker array and a sound field partition control method of a vehicle cabin. The multi-loudspeaker array comprises a plurality of bass loudspeakers, a plurality of alto loudspeakers, a plurality of treble loudspeakers, a plurality of headrest loudspeakers, one or more mega bass loudspeakers and a plurality of surround loudspeakers. The bass loudspeaker, the alto loudspeaker and the treble loudspeaker are distributed in a plurality of areas of a vehicle cabin and are used for forming a sound field covering a full frequency band; the headrest loudspeaker is arranged at the position of a seat headrest and used for making sound to a corresponding seat in a near-field mode. The mega bass loudspeaker is arranged in the rear area of the vehicle cabin and used for supplementing low-frequency signals; the surround loudspeaker is arranged in the rear area of the vehicle cabin and used for forming a sound field surrounding the vehicle cabin. According to the embodiment of the invention, through the distributed layout and function division of the high-density multi-loudspeaker array, the sound fields of different seats are independently constructed and do not interfere with each other, a hardware basis is provided for partition control, and personalized audio requirements are met.

The utility model belongs to the technical field of molds, and particularly relates to an anti-overflow exhaust position adjustable mechanism for a foaming mold of a headrest of a noon break desk and chair. The device comprises a lower headrest foaming forming die and an upper headrest foaming forming die, a forming concave part is arranged in the lower headrest foaming forming die, a forming convex part is arranged on the upper headrest foaming forming die, and the forming concave part and the forming convex part correspond to each other in position and are matched with each other in shape. According to the utility model, through the adjustable rotary connecting piece, the exhaust position can be flexibly adjusted according to different foaming processes and headrest shapes, the smooth exhaust of gas is ensured, the defects of bubbles, cavities and the like in the headrest are reduced, the product quality is improved, and a one-way valve in the anti-overflow exhaust mechanism effectively prevents the reverse flow of materials and prevents the overflow phenomenon; raw materials are saved, production cost is reduced, pollution to the die and equipment is reduced, and the service life of the die is prolonged.

The utility model relates to medical instrument technical field discloses a multifunctional eye -washing stool, including the stool main part, the back of stool main part swing joint has the folding chair back, the back of folding chair back is provided with adjusting assembly, and adjusting assembly includes fixed square tube. In the utility model, through adjusting assembly, folding chair back of stool back swing joint can realize multi -angle adjustment, both convenient storage and can satisfy different scene demand, and utilize the adjusting hole cooperation of fixed square tube and have telescopic draw -in pin adjusting column, can realize the multi -gear flexible adjustment of headrest height, adjusting column and bogie pass through locking bolt connection simultaneously, can accurately fixed headrest angle, adapt to the posture demand of different height user, headrest adopts high density memory sponge and waterproof fabric, and the comfortable support of sticking head curve provides and convenient and clean maintenance, and the whole structure is flexible and adjustable, provides individualized head support for different patients, and the comfort and convenience of eye -washing operation are improved.

The invention discloses a vehicle-mounted screen 3D simulation seat adjustment interaction method, and relates to the technical field of vehicle control, and the method comprises the steps: obtaining a 3D engine, and constructing a 3D virtual model corresponding to an automobile physical seat according to the 3D engine; displaying the 3D virtual model on a user interaction interface; establishing a dynamic binding relationship between the 3D virtual model and the seat unit, and completing initial calibration according to a spatial state; obtaining a touch operation of a user on a target adjusting part in the 3D virtual model, analyzing the type and track of the touch operation and target part information, and generating an interaction instruction; the target adjusting component comprises a headrest, a backrest and a leg support; the interaction instruction is converted into a seat motion control signal, the seat motion control signal is sent to a seat motion control module, and a physical seat is driven to execute corresponding adjusting actions; a highlight semitransparent guide rail projection is generated through the visual feedback unit, and continuous click type vibration is provided through the tactile feedback unit; the real-time state of the physical seat is obtained, and the 3D virtual model is driven to be synchronously updated.

The utility model relates to the technical field of hardware tools, and discloses a durable screwdriver with a four-claw rotating shaft ratchet wheel structure, which comprises a handle sleeve, a screwdriver body, a screwdriver head and a screwdriver head protection cylinder device consisting of a detachable sleeve piece, a screwdriver head placement piece and a spare screwdriver head, the handle sleeve is connected with the screwdriver body in a matched mode through an adaptive screw, the screwdriver head is arranged at the shaft end of the side, away from the handle sleeve, of the screwdriver body, the screwdriver head protection barrel device is arranged on the outer portion of the side, corresponding to the screwdriver head, of the screwdriver body, and the screwdriver head protection barrel device is connected with the outer portion of the screwdriver body in a matched mode through threads. According to the durable screwdriver with the four-claw rotating shaft ratchet wheel structure, the handle sleeve and the screwdriver head protection barrel are arranged on the two sides of the screwdriver body, so that the protection effect of the screwdriver body and the screwdriver head is greatly improved, and meanwhile the durability of the screwdriver is greatly improved.

The utility model relates to the technical field of medical instruments, and discloses a head fixator for patient treatment, which comprises a cross beam, an arc-shaped angle measuring plate is fixedly connected to one side of the outer wall of the cross beam, two limiting grooves are formed in the arc-shaped angle measuring plate in a penetrating manner, and a first limiting block is slidably connected to the inside of the cross beam. And the first limiting block is slidably connected to the inner wall of one limiting groove, a first limiting bolt is fixedly connected to the interior of the first limiting block, a first limiting nut is in threaded connection with the outer wall of the first limiting bolt, and a first fixing frame is fixedly connected to the lower surface of the first limiting bolt. According to the device, through cooperation of the cross beam, the arc-shaped angle measuring plate, the first limiting block, the first limiting bolt, the first limiting nut, the first fixing frame, the second limiting block, the second limiting bolt and the second limiting nut, the braking angle of the head of a patient can be positioned, and then through cooperation of the telescopic rod and the abutting block, the effect of adjusting according to the head circumference of the patient can be achieved; and the head braking accuracy is improved.

The application provides a kind of roadbed ramming device, belongs to ramming device technical field.The bottom plate is rotatably connected with symmetrically distributed transmission arms on the bottom plate, the end of the transmission arm is fixedly connected with a ram head fixed plate through a ram head holder, and an eccentric block is rotatably connected between the transmission arms, symmetrically distributed ram head movable plates are sleeved on both ends of the ram head fixed plate, the ram head movable plates are slidably connected with the ram head fixed plate, and a deformation zone is fixedly connected between the two ram head movable plates, limit arms are symmetrically installed on the top of the ram head movable plates.The application sets up a pressing assembly, cooperates with the elastic reset mechanism of the deformation zone and the spring, so that the ram head movable plates can move away from each other under the rotation of the eccentric block, expand the deformation zone into a flat ramming plane, effectively expand the single ramming area, improve the ramming efficiency, and quickly recover to the original state with the help of the elastic force of the deformation zone and the spring during the reset process, reduce the adsorption force with the ground and reduce the motor load.

A shower holder body, a shower holder, and a shower holder assembly are disclosed. The shower holder body includes a body shell including a mounting channel that can at least partially receive one of a pipe or a rod. The mounting channel includes a shell opening for the pipe or the rod to enter or withdraw from the mounting channel. The shower holder body includes a sealing cover detachably coupled to the body shell at the shell opening. The sealing cover can open or close the shell opening.

The utility model relates to the technical field of automobile seat headrests, and discloses an automobile seat headrest with loudspeakers, which comprises a first pillowcase, two sides of the first pillowcase are connected with second pillowcases, zippers are arranged between the first pillowcase and the second pillowcases, a connecting structure is arranged on the outer side of the first pillowcase, sponge is arranged in the first pillowcase, and the loudspeaker is arranged in the first pillowcase. A mounting box is embedded into one end of the sponge, a plurality of plug boards are fixedly arranged on the outer side of the mounting box and are plugged into the sponge, when the Bluetooth loudspeaker box is used, a Bluetooth loudspeaker is placed on one side of a push plate, and then the push plate and the Bluetooth loudspeaker are slidably mounted in the mounting box through a strip-shaped plate; the Bluetooth loudspeaker is arranged in the mounting box, so that the Bluetooth loudspeaker is convenient to disassemble and assemble, then the dustproof cover covers the mounting box, the mounting box and the plug board are buckled in the sponge, the first pillowcase and the second pillowcase are connected through the zipper, and then the Bluetooth loudspeaker is connected with a sound box of an automobile, so that the audio experience is improved.

A fixed-blade fixing frame, which is formed by powder metallurgy, and comprises a holder body (11), wherein the left and right ends of the holder body (11) are wide, and the middle portion thereof is narrow. On the front side and / or rear side of the holder body (11), a laterally recessed clearance slot (15) is formed between left and right wide portions (111). Sunken U-shaped steps (12) are integrally formed on the outer edges of the wide portions (111). Left and right rotating connection structures are integrally formed on the holder body (11). The rotating connection structures each comprise a rotating connection portion (13) integrally formed on the holder body. A shaft hole (131) arranged in an X-axis direction is provided on the rotating connection portion (13). The present invention also relates to a reciprocating shaver head, comprising a pivoting head holder (2) and a shaver (10). The shaver (10) comprises the fixed-blade fixing frame (1), a fixed blade (3), a movable blade (4) and a movable-blade transmission device. The fixed blade (3) comprises a skin-contact sheet (31), wherein downward-facing wrapping edges (33) are integrally formed on the left and right ends of the skin-contact sheet (31); the wrapping edges (33) are fitted and fixed with the steps (12); a rotating shaft (5) matching the shaft hole (131) is fixed on the pivoting head holder (2); and a torsion spring (6) is sleeved on the outer side of the rotating shaft (5). The reciprocating shaver head has a simple structure, and is easy to produce and assemble.

This utility model discloses a car headrest with a mobile phone holder, comprising a fixing device for snapping onto the head position of a car seat, a connecting device connecting the fixing device and the headrest body, a headrest body detachably mounted on the connecting device, and a mobile phone holder snapped onto the fixing device. The fixing device is located on one side of the connecting device, and the headrest body is located on the other side of the connecting device. The fixing device includes a snap-fit ​​component for mounting on the head position of the car seat and a first adjusting component located inside the connecting device. The snap-fit ​​component includes a left snap-fit ​​component and a right snap-fit ​​component arranged side by side. Both the left and right snap-fit ​​components have a support rod slot and a bracket slot arranged side by side. The left and right snap-fit ​​components are snapped onto the left or right support rod of the car seat headrest through the support rod slot, and the mobile phone holder is snapped onto the left or right snap-fit ​​component through the bracket slot. This utility model is convenient to use, adds a mobile phone fixing function, and is highly practical.