CN111773543A - Headrest is followed automatically to support - Google Patents
Headrest is followed automatically to support Download PDFInfo
- Publication number
- CN111773543A CN111773543A CN202010511210.2A CN202010511210A CN111773543A CN 111773543 A CN111773543 A CN 111773543A CN 202010511210 A CN202010511210 A CN 202010511210A CN 111773543 A CN111773543 A CN 111773543A
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- headrest
- guide rail
- sliding block
- support
- arc guide
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/004—Magnetotherapy specially adapted for a specific therapy
- A61N2/006—Magnetotherapy specially adapted for a specific therapy for magnetic stimulation of nerve tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F11/00—Methods or devices for treatment of the ears or hearing sense; Non-electric hearing aids; Methods or devices for enabling ear patients to achieve auditory perception through physiological senses other than hearing sense; Protective devices for the ears, carried on the body or in the hand
- A61F11/06—Protective devices for the ears
- A61F11/14—Protective devices for the ears external, e.g. earcaps or earmuffs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/02—Chairs with means to adjust position of patient; Controls therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G15/00—Operating chairs; Dental chairs; Accessories specially adapted therefor, e.g. work stands
- A61G15/10—Parts, details or accessories
- A61G15/12—Rests specially adapted therefor, e.g. for the head or feet
- A61G15/125—Head-rests
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M21/02—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis for inducing sleep or relaxation, e.g. by direct nerve stimulation, hypnosis, analgesia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/10—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering
- A61G2203/22—General characteristics of devices characterised by specific control means, e.g. for adjustment or steering for automatically guiding movable devices, e.g. stretchers or wheelchairs in a hospital
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/30—General characteristics of devices characterised by sensor means
- A61G2203/42—General characteristics of devices characterised by sensor means for inclination
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2203/00—General characteristics of devices
- A61G2203/70—General characteristics of devices with special adaptations, e.g. for safety or comfort
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M21/00—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis
- A61M2021/0005—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus
- A61M2021/0027—Other devices or methods to cause a change in the state of consciousness; Devices for producing or ending sleep by mechanical, optical, or acoustical means, e.g. for hypnosis by the use of a particular sense, or stimulus by the hearing sense
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Psychology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Anesthesiology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Heart & Thoracic Surgery (AREA)
- Otolaryngology (AREA)
- Neurology (AREA)
- Biophysics (AREA)
- Vascular Medicine (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pain & Pain Management (AREA)
- Hematology (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention discloses a support automatic following headrest, which comprises two concentric circular arc guide rails, a headrest sliding block, a headrest support, a headrest, a pull rope encoder, a support sliding block, a support driving mechanism, a support and a controller, wherein the two concentric circular arc guide rails are arranged on the support; the body of the stay cord encoder is fixedly arranged relative to the arc guide rail I, and a stay cord of the stay cord encoder is arranged on the driving sliding block; the support sliding block is provided with a roller, the roller is arranged on the arc guide rail II to form a roller guide rail mechanism, and the support driving mechanism drives the support sliding block to slide along the arc guide rail II; the stay cord encoder sends the detected sliding angle of the headrest sliding block on the arc guide rail I to the controller, the controller generates a command for controlling the support driving mechanism according to the received information, and the support driving mechanism drives the support sliding block to follow the headrest sliding block according to the command to generate the following of the same angle; the support driving mechanism adopts a synchronous belt driving mechanism. The invention can effectively rotate along with the head/neck and ensure the comfort of the rotation of the head/neck.
Description
Technical Field
The invention relates to a device or an instrument which is provided with a support capable of automatically following a headrest and is suitable for transcranial magnetic stimulation devices and the like and needs head/neck rotation following.
Background
Transcranial Magnetic Stimulation (TMS) is a type of instrument suitable for the detection, assessment and treatment of central, peripheral and psycho-mental disorders. However, the transcranial magnetic therapy process generally requires two to thirty minutes, and during the therapy process, a magnetic stimulation head (hereinafter referred to as a head) needs to be aligned with a target position of the head of a patient and keep the relative position of the head and the target position immobile, that is, the head needs to synchronously rotate along with the rotation of the head of the patient.
Throughout the world, although many manufacturers have developed head navigation systems to precisely determine the treatment site, only Mag & More companies have Apollo transcranial magnetic therapy devices with such a head support that can follow the rotation of the patient's head/neck; however, the head support belongs to a pure mechanical fixing device, and is poor in stability and comfort; therefore, a head support which can be matched with the current TMS special seat, can synchronously rotate along with the head of a patient and is comfortable to use needs to be designed.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides the support automatic following headrest, which adopts two concentric circular arc-shaped tracks and a synchronous belt driving mechanism to realize the following of the support to the headrest, and improves the comfort of the rotation of the head/neck of a patient during treatment.
The technical scheme is as follows: in order to achieve the purpose, the invention adopts the technical scheme that:
a support automatic following headrest comprises two concentric circular arc guide rails, a headrest sliding block, a headrest support, a headrest, a stay cord encoder, a support sliding block, a support driving mechanism, a support and a controller; the two concentric arc guide rails are respectively called an arc guide rail I and an arc guide rail II; the headrest is arranged on a headrest sliding block through a headrest support, the headrest sliding block is arranged on an arc guide rail I, a body of the stay cord encoder is fixedly arranged relative to the arc guide rail I, and a stay cord of the stay cord encoder is arranged on an active sliding block; the bracket is arranged on the bracket sliding block, the bracket sliding block is provided with a roller, the roller is arranged on the arc guide rail II to form a roller guide rail mechanism, and the bracket driving mechanism drives the bracket sliding block to slide along the arc guide rail II; the stay cord encoder sends the detected sliding angle of the headrest sliding block on the arc guide rail I to the controller, the controller generates a command for controlling the support driving mechanism according to the received information, and the support driving mechanism drives the support sliding block to follow the headrest sliding block according to the command to generate the following of the same angle;
the bracket driving mechanism comprises a synchronous belt groove, a synchronous belt pulley, an idler pulley I, an idler pulley II and a motor which are concentric with the arc-shaped guide rail, wherein a base of the motor is fixed with a bracket sliding block, the synchronous belt pulley is installed on an output shaft of the motor, one end of the synchronous belt is fixed with one end of the synchronous belt groove, the other end of the synchronous belt extends along the synchronous belt groove, extends out of the synchronous belt groove after passing through the idler pulley I, returns into the synchronous belt groove after passing through the synchronous belt pulley and then passing through the idler pulley II, and is finally fixed with the other; and the shaft for mounting the idle wheel I and the idle wheel II is fixed with the bracket slide block.
Two circular arc tracks of present case have adopted concentric mode to set up (can design as required that the central angle is the same, the symmetry axis is on same line), can conveniently realize synchronous follow-up because the turned angle of headrest slider or the change volume of turned angle have only been confirmed, according to the motion of this turned angle or turned angle's change direct drive support slider can realize the follow-up, simple structure, it is convenient to implement.
In addition to the transcranial magnetic stimulation apparatus, the support can be used for automatically following the headrest, other devices or apparatuses which need to carry out head/neck rotation following can also use the technology provided by the scheme, such as robot equipment, VR technology, medical equipment for head diagnosis and treatment, medical supports and the like, and even some monitoring equipment can also adopt the technology provided by the scheme.
In the scheme, the circular arc-shaped track is adopted, so that the head/neck rotation rule of a human body is better met; meanwhile, the mechanical connection of the detection part and the follow-up part is separated, and signal connection is adopted, so that the head/neck of the human body is more comfortable during rotation; the scheme is suitable for various occasions needing to rotate along with the head/neck of the human body.
Meanwhile, the roller type arc-shaped guide rail and the synchronous belt transmission mechanism which are low in processing and manufacturing cost are adopted, two ends of the synchronous belt are fixed, and the design of the structure of the follow-up part is realized by adopting a simpler mode on the premise of not increasing the whole size.
Preferably, the arc guide rail II is of a V-shaped protruding structure, the roller is provided with a V-shaped groove structure, and the V-shaped groove structure is clamped on the V-shaped protruding structure to form a roller guide rail mechanism; adopt V type structure to make at the direction in-process, V type groove and the bellied two sides of V type can keep in touch, improve the stability of motion and user's comfort level.
Preferably, a supporting cross rod is fixed on the back of the headrest, a group of ear muff adjusting and locking mechanisms are respectively mounted at two ends of the supporting cross rod, and each ear muff adjusting and locking mechanism comprises an ear muff, a connecting rod, a reset torsion spring, a ratchet adjusting rod and a compression spring; the headrest is positioned on the front side of the middle part of the supporting cross rod, one ends of the two connecting rods are respectively arranged at the left end and the right end of the supporting cross rod through a pin shaft I, the resetting torsion spring is sleeved on the pin shaft I, and two feet of the resetting torsion spring respectively press the supporting cross rod and the connecting rods outwards; the two earmuffs are respectively arranged at the other ends of the two connecting rods; the two ratchet wheels are respectively arranged at the left end and the right end of the supporting cross rod; the two adjusting rods are respectively arranged on the outer side surfaces of the two connecting rods through a pin shaft II, a pawl matched with the ratchet wheel is arranged at one end of each adjusting rod, the ratchet wheel and pawl mechanism limits the connecting rods to be capable of executing inward unidirectional rotation, the position, right opposite to the adjusting rods, of the other end of each adjusting rod is connected through a compression spring, and the pawl and the compression spring are located on two sides of the pin shaft II. If the earmuff is loose, when the earmuff needs to be clamped, the connecting rod (close to one end of the earphone) is directly pressed inwards, so that the connecting rod rotates inwards to a proper position, the pawl moves on the ratchet wheel along with the connecting rod (of course, the compression spring is pressed, and the adjustment can be carried out after the ratchet wheel and the pawl are separated). If the earmuff is felt to be tight, when the earmuff needs to be opened, the compression spring is compressed, so that one end of the adjusting rod, which is provided with the compression spring, tends to approach the connecting rod, the pawl is separated from the ratchet wheel, the connecting rod (close to one end of the earphone) is stirred outwards, the connecting rod rotates inwards to a proper position, the compression spring is loosened, and the ratchet wheel and the pawl are contacted to be locked to an adjusting position. When the state of the ear muffs is finished through tightness adjustment, the compression spring is slightly compressed, the pawl is clamped on the ratchet wheel, and two feet of the reset torsion spring respectively press the support cross rod and the connecting rod outwards to fix the relative positions of the support cross rod and the connecting rod. When the ratchet wheel needs to be reset, the compression spring is pressed, the pawl is separated from the ratchet wheel, the connecting rod resets relative to the supporting cross rod under the action of the reset torsion spring, and the compression spring is loosened. The earmuffs are sound insulation earmuffs or music earmuffs.
Preferably, the two arc guide rails I are respectively positioned on the front arc side surface and the rear arc side surface of the front guide rail frame with smaller radius; the two arc guide rails II are respectively positioned on the front arc side surface and the rear arc side surface of the rear guide rail frame with larger radius; the synchronous belt groove is positioned on the rear arc side surface of the guide rail frame. The design adopts two groups of arc guide rails, so that the stability of the whole structure can be improved, the connection stability of the sliding block and the guide rails can be improved, and the sliding block is prevented from rotating around the track; is particularly suitable for the structures of V-shaped grooves and V-shaped bulges.
Preferably, the synchronous belt and the synchronous pulley set form a toothed belt mechanism, and the meshing transmission can improve the transmission accuracy.
Has the advantages that: compared with the prior art, the support automatic following headrest provided by the invention has the following advantages: 1. the electric following is adopted, the mechanical connection of the detection part and the following part is separated, the industry is initiated, and the industry blank is filled; 2. the device can be applied to all occasions needing to rotate along with the head/neck, such as transcranial magnetic seats and the like; 3. the design of the arc guide rail accords with the rotation rule of the head/neck of a human body, and the head/neck is comfortable to rotate; 4. the support follows in real time to ensure the accuracy of the relative position; 5. compared with a mechanical passive following type, the support mechanism is arranged on the rear arc guide rail and is driven by the motor, so that the head movement is not influenced, and the head/neck rotation burden is reduced; 6. the rotation angle detection is carried out by adopting the pull rope encoder, so that the burden on the rotation of the head/neck cannot be caused in the measurement process; 7. the ear muffs adopt a size-adjustable structure, so that the requirements of different head sizes can be met; 8. the sound insulation earmuffs are adopted, so that the noise generated during the treatment of the instrument can be effectively blocked while the head is clamped; if the music earmuffs are adopted, the relaxing music can be played in the treatment process, and the comfort level in the use process is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a carriage drive mechanism tooling;
FIG. 3 is a schematic structural view of an earmuff adjustment locking mechanism tool;
the figure includes: 1-a head; 2-ear muffs; 3-ear muff adjusting and locking mechanism; 4-a pull rope encoder; 5-arc guide rail I; 6-beating the head; 7-headrest; 8-a scaffold; 9-arc guide rail II; 10-a carriage drive mechanism; 11-a cradle slider; 12-a motor; 13-synchronous belt; 14-a synchronous pulley; 15-a roller; 16-an idler wheel; 17-a rear guide rail bracket; 18-a return torsion spring; 19-a ratchet wheel; 20-a pawl; 21-a compression spring; 22-ear muffs.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the support automatic following headrest comprises two concentric circular arc guide rails, a headrest slide block, a headrest support, a headrest, a pull rope encoder, a support slide block, a support driving mechanism, a support and a controller; the two concentric arc guide rails are respectively called an arc guide rail I and an arc guide rail II; the headrest is arranged on a headrest sliding block through a headrest support, the headrest sliding block is arranged on an arc guide rail I, a body of the stay cord encoder is fixedly arranged relative to the arc guide rail I, and a stay cord of the stay cord encoder is arranged on an active sliding block; the bracket is arranged on the bracket sliding block, the bracket sliding block is provided with a roller, the roller is arranged on the arc guide rail II to form a roller guide rail mechanism, and the bracket driving mechanism drives the bracket sliding block to slide along the arc guide rail II; the stay cord encoder sends the detected sliding angle of the headrest sliding block on the arc guide rail I to the controller, the controller generates an instruction for controlling the support driving mechanism according to the received information, and the support driving mechanism drives the support sliding block to follow the headrest sliding block according to the instruction to generate follow at the same angle.
The bracket driving mechanism comprises a synchronous belt groove, a synchronous belt pulley, an idler pulley I, an idler pulley II and a motor which are concentric with the arc-shaped guide rail, wherein a base of the motor is fixed with a bracket sliding block, the synchronous belt pulley is installed on an output shaft of the motor, one end of the synchronous belt is fixed with one end of the synchronous belt groove, the other end of the synchronous belt extends along the synchronous belt groove, extends out of the synchronous belt groove after passing through the idler pulley I, returns into the synchronous belt groove after passing through the synchronous belt pulley and then passing through the idler pulley II, and is finally fixed with the other; and the shaft for mounting the idle wheel I and the idle wheel II is fixed with the bracket slide block.
A supporting cross rod is fixed on the back of the headrest, a group of ear muff adjusting and locking mechanisms are respectively installed at two ends of the supporting cross rod, and each ear muff adjusting and locking mechanism comprises an ear muff, a connecting rod, a reset torsion spring, a ratchet wheel adjusting rod and a compression spring; the headrest is positioned on the front side of the middle part of the supporting cross rod, one ends of the two connecting rods are respectively arranged at the left end and the right end of the supporting cross rod through a pin shaft I, the resetting torsion spring is sleeved on the pin shaft I, and two feet of the resetting torsion spring respectively press the supporting cross rod and the connecting rods outwards; the two earmuffs are respectively arranged at the other ends of the two connecting rods; the two ratchet wheels are respectively arranged at the left end and the right end of the supporting cross rod; two adjusting rods are respectively arranged on the outer side surfaces of the two connecting rods through a pin shaft II, a pawl matched with the ratchet wheel is arranged at one end of each adjusting rod, the other end of each adjusting rod is connected with the position, right opposite to the adjusting rod, of the adjusting rod through a compression spring, and the pawl and the compression spring are located on two sides of the pin shaft II.
The two arc guide rails I are respectively positioned on the front arc side surface and the rear arc side surface of the front guide rail frame with smaller radius; the two arc guide rails II are respectively positioned on the front arc side surface and the rear arc side surface of the rear guide rail frame with larger radius; the synchronous belt groove is positioned on the rear arc side surface of the guide rail frame. The arc guide rail II is of a V-shaped protruding structure, a V-shaped groove structure is arranged on the roller, and the V-shaped groove structure is clamped on the V-shaped protruding structure to form a roller guide rail mechanism. The synchronous belt and the synchronous pulley set form a toothed belt mechanism.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (5)
1. The utility model provides a support is from moving along headrest which characterized in that: the device comprises two concentric circular arc guide rails, a headrest sliding block, a headrest bracket, a headrest, a pull rope encoder, a bracket sliding block, a bracket driving mechanism, a bracket and a controller; the two concentric arc guide rails are respectively called an arc guide rail I and an arc guide rail II; the headrest is arranged on a headrest sliding block through a headrest support, the headrest sliding block is arranged on an arc guide rail I, a body of the stay cord encoder is fixedly arranged relative to the arc guide rail I, and a stay cord of the stay cord encoder is arranged on an active sliding block; the bracket is arranged on the bracket sliding block, the bracket sliding block is provided with a roller, the roller is arranged on the arc guide rail II to form a roller guide rail mechanism, and the bracket driving mechanism drives the bracket sliding block to slide along the arc guide rail II; the stay cord encoder sends the detected sliding angle of the headrest sliding block on the arc guide rail I to the controller, the controller generates a command for controlling the support driving mechanism according to the received information, and the support driving mechanism drives the support sliding block to follow the headrest sliding block according to the command to generate the following of the same angle;
the bracket driving mechanism comprises a synchronous belt groove, a synchronous belt pulley, an idler pulley I, an idler pulley II and a motor which are concentric with the arc-shaped guide rail, wherein a base of the motor is fixed with a bracket sliding block, the synchronous belt pulley is installed on an output shaft of the motor, one end of the synchronous belt is fixed with one end of the synchronous belt groove, the other end of the synchronous belt extends along the synchronous belt groove, extends out of the synchronous belt groove after passing through the idler pulley I, returns into the synchronous belt groove after passing through the synchronous belt pulley and then passing through the idler pulley II, and is finally fixed with the other; and the shaft for mounting the idle wheel I and the idle wheel II is fixed with the bracket slide block.
2. The stand auto-following headrest according to claim 1, wherein: the arc guide rail II is of a V-shaped protruding structure, a V-shaped groove structure is arranged on the roller, and the V-shaped groove structure is clamped on the V-shaped protruding structure to form a roller guide rail mechanism.
3. The stand automatic following headrest according to claim 1 or 2, characterized in that: a supporting cross rod is fixed on the back of the headrest, a group of ear muff adjusting and locking mechanisms are respectively installed at two ends of the supporting cross rod, and each ear muff adjusting and locking mechanism comprises an ear muff, a connecting rod, a reset torsion spring, a ratchet wheel adjusting rod and a compression spring; the headrest is positioned on the front side of the middle part of the supporting cross rod, one ends of the two connecting rods are respectively arranged at the left end and the right end of the supporting cross rod through a pin shaft I, the resetting torsion spring is sleeved on the pin shaft I, and two feet of the resetting torsion spring respectively press the supporting cross rod and the connecting rods outwards; the two earmuffs are respectively arranged at the other ends of the two connecting rods; the two ratchet wheels are respectively arranged at the left end and the right end of the supporting cross rod; two adjusting rods are respectively arranged on the outer side surfaces of the two connecting rods through a pin shaft II, a pawl matched with the ratchet wheel is arranged at one end of each adjusting rod, the other end of each adjusting rod is connected with the position, right opposite to the adjusting rod, of the adjusting rod through a compression spring, and the pawl and the compression spring are located on two sides of the pin shaft II.
4. The stand automatic following headrest according to claim 1 or 2, characterized in that: the two arc guide rails I are respectively positioned on the front arc side surface and the rear arc side surface of the front guide rail frame with smaller radius; the two arc guide rails II are respectively positioned on the front arc side surface and the rear arc side surface of the rear guide rail frame with larger radius; the synchronous belt groove is positioned on the rear arc side surface of the guide rail frame.
5. The stand automatic following headrest according to claim 1 or 2, characterized in that: the synchronous belt and the synchronous pulley set form a toothed belt mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511210.2A CN111773543A (en) | 2020-06-08 | 2020-06-08 | Headrest is followed automatically to support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511210.2A CN111773543A (en) | 2020-06-08 | 2020-06-08 | Headrest is followed automatically to support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111773543A true CN111773543A (en) | 2020-10-16 |
Family
ID=72754709
Family Applications (1)
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| CN202010511210.2A Pending CN111773543A (en) | 2020-06-08 | 2020-06-08 | Headrest is followed automatically to support |
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