Head bracket used in cooperation with wheelchair or flatcar
By designing an adjustable headrest, the difficulties faced by patients with limited mobility in receiving oral care while on a stretcher or wheelchair have been resolved. This design allows for flexible adjustment of the head position and provides comfortable support, thus meeting the needs of oral care.
Patent Information
- Application Number
- CN202520187882.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-06
AI Technical Summary
Existing dental treatment equipment is not suitable for patients with limited mobility, and cannot effectively adjust head position on stretchers or wheelchairs, making it impossible for them to receive normal oral treatment.
A headrest is designed, comprising a movable seat, a lifting mechanism, a first rotating mechanism, and a second rotating mechanism. The headrest's horizontal height, forward and backward tilt angle, and lateral tilt angle can be flexibly adjusted through casters, servo cylinders, and a drive motor. The Velcro closure facilitates cleaning and disinfection.
It enables flexible adjustment of the head position for patients with limited mobility, meets the needs of oral diagnosis and treatment, and improves the efficiency of diagnosis and treatment and the comfort of patients.
Smart Images
Figure CN223861020U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to oral cavity diagnosis and treatment equipment technical field, concretely relates to a head bracket for cooperation with wheelchair or flatcar. BACKGROUND
[0002] Stomatological department, one of medical discipline classification, main stomatological department disease includes: oral cavity jaw surface part skin sample, epidermis jaw under gap infection, jaw surface department lymphatic vessel tumor, dentiform process development deformity, maxillary sinus malignant tumor, jaw bone enameloblastoma, chronic ethmoidal sinusitis, mandibular retraction, tetracycline tooth, tongue white spot etc.
[0003] The important auxiliary medical instrument for oral cavity diagnosis and treatment is dental comprehensive treatment machine, the existing treatment machine includes dental chair and head support, the head support is directly fixed on the dental chair main body through bolt, the patient needs to lie on the dental chair when receiving oral cavity diagnosis and treatment, the head of the patient can be adjusted to the appropriate treatment position through adjusting the support angle, support size and convex arc of the head support.
[0004] However, part of the patients can only lie on the flatcar or wheelchair due to the inconvenient action, cannot normally use the dental chair to treat, therefore need to improve the existing head support, so as to adjust the head position of the flatcar or wheelchair patient. UTILITY MODEL CONTENTS
[0005] In view of the existing technical problems, the utility model provides a head bracket for cooperation with wheelchair or flatcar, which is convenient for adjusting the head position of the flatcar or wheelchair patient.
[0006] To solve the above technical problem, the utility model provides a head bracket for cooperation with wheelchair or flatcar, which comprises:
[0007] The moving seat comprises a base and universal wheels, and a plurality of universal wheels are arranged in a circumferential array on the periphery of the base.
[0008] The lifting mechanism is vertically lifted and arranged on the base.
[0009] The first rotating mechanism is forward and backward rotatable and arranged on the lifting mechanism.
[0010] The second rotating mechanism is laterally rotatable and arranged on the first rotating mechanism.
[0011] The headrest is arranged on the second rotating mechanism.
[0012] Preferably, in the above scheme, the first rotating mechanism includes a lower base plate, an ear plate, a horizontal shaft, a first bearing, and a connecting plate. The lower base plate is located at the top of the lifting mechanism, and an ear plate is provided on each of the left and right sides. The two ends of the horizontal shaft are respectively connected to an ear plate. The first bearing is sleeved on the horizontal shaft, and its upper part is connected to the lower end of the connecting plate.
[0013] Preferably, in the above scheme, the first rotating mechanism further includes a threaded hole and a bolt. The threaded hole is opened on the side of the ear plate and is threadedly connected to the bolt. When the bolt rotates, the tail end abuts against the side of the first bearing to lock or separate.
[0014] Preferably, in the above scheme, the second rotating mechanism includes an upper seat plate, a second bearing, and a longitudinal shaft. The lower surface of the upper seat plate is connected to the upper part of the second bearing, and the two ends of the longitudinal shaft are respectively fitted with a second bearing, and the middle part is connected to the upper end of the connecting plate.
[0015] Preferably, in the above scheme, the second rotating mechanism further includes a gear, a slide groove, and a limiting block. The gear is located at one end of the longitudinal shaft, and the slide groove is opened on the lower surface of the upper seat plate near the gear and is adapted to the upper end of the limiting block. When the limiting block slides back and forth on the slide groove, the limiting block and the gear are locked or separated.
[0016] Preferably, in the above scheme, the second rotating mechanism further includes a rotating rod and a handle. One end of the rotating rod is rotatably connected to the limiting block, and the other end is rotatably connected to the handle. One end of the handle is rotatably connected to the upper seat plate. When the other end of the handle rotates, it drives the rotating rod to move and causes the limiting block to slide back and forth in the slide groove.
[0017] Preferably, in the above solution, the headrest includes a U-shaped pillow and Velcro, with one side of the Velcro on the back of the U-shaped pillow and the other side on the second rotating mechanism.
[0018] Preferably, in the above solution, the omnidirectional wheel includes a wheel and a brake assembly, and the brake assembly is rotatably disposed above the wheel.
[0019] Preferably, the above solution also includes an infrared receiving module, a remote controller, and a control module, wherein the control module is electrically connected to the lifting mechanism, the first rotating mechanism, the second rotating mechanism, and the infrared receiving module, respectively.
[0020] Preferably, in the above scheme, the lifting mechanism includes a servo electric cylinder, the cylinder body of the servo electric cylinder is connected to the moving seat, the piston is connected to the first rotating mechanism, and both the first rotating mechanism and the second rotating mechanism include a drive motor.
[0021] Compared with existing technologies, this utility model has the following beneficial effects:
[0022] 1. A headrest for use with a wheelchair or flatbed cart according to the present invention includes a movable seat, a lifting mechanism, a first rotating mechanism, a second rotating mechanism, and a headrest. The movable seat includes a base and casters. Multiple casters are arranged in a circumferential array around the periphery of the base to ensure the stability and flexibility of the base during movement. The headrest's horizontal height, front-to-back tilt angle, and lateral tilt angle can be adjusted through the coordinated adjustment between the lifting mechanism, the first rotating mechanism, and the second rotating mechanism, thereby meeting the head position adjustment needs of patients in flatbed carts or wheelchairs during oral treatment.
[0023] 2. The first bearing in this utility model can be rotated and adjusted in the front and back direction. By setting a locking structure composed of threaded holes and bolts, doctors can easily fine-tune and lock the front and back tilt angle of the patient's head to obtain the best diagnosis angle and field of vision.
[0024] 3. The second rotating mechanism in this utility model includes an upper seat plate, a second bearing, a longitudinal shaft, a gear, a slide groove, and a limiting block. The lower surface of the upper seat plate is connected to the upper part of the second bearing. A second bearing is sleeved at each end of the longitudinal shaft, so that the upper seat plate can rotate smoothly to the side. The slide groove is adapted to the upper end of the limiting block. When the limiting block slides back and forth on the slide groove, the limiting block and the gear lock or separate from each other.
[0025] 4. The second rotating mechanism in this utility model also includes a rotating rod and a handle. One end of the rotating rod is rotatably connected to the limiting block, and the other end is rotatably connected to the handle. One end of the handle is rotatably connected to the upper seat plate. When the other end of the handle rotates, it drives the rotating rod to move. The two work together to generate a lever effect. Only a small force needs to be applied to generate a large torque, which can effectively push the limiting block to slide back and forth in the groove.
[0026] 5. The headrest of this utility model includes a U-shaped pillow and Velcro. One side of the Velcro is located on the back of the U-shaped pillow, and the other side is located on the second rotating mechanism. The Velcro is detachable, which facilitates the cleaning, disinfection, replacement and maintenance of the headrest. Attached Figure Description
[0027] Figure 1 This is a first-view structural diagram of a headrest for use with a wheelchair or flatbed according to the present invention.
[0028] Figure 2This is a second-view structural diagram of a headrest for use with a wheelchair or flatbed according to the present invention.
[0029] Figure 3 This is a schematic diagram of the structure of the first rotating mechanism of this utility model.
[0030] Figure 4 This is a schematic diagram of the structure of the second rotating mechanism of this utility model.
[0031] Figure 5 This utility model Figure 4 A magnified view of part A in the middle.
[0032] Figure 6 This is a schematic diagram of the headrest of this utility model.
[0033] Among them, 1-movable seat, 11-base, 12-universal wheel, 121-wheel, 122-brake assembly, 2-lifting mechanism, 3-first rotating mechanism, 31-lower seat plate, 32-ear plate, 33-horizontal shaft, 34-first bearing, 35-connecting plate, 36-threaded hole, 37-bolt, 371-anti-slip protrusion, 372-rubber block, 4-second rotating mechanism, 41-upper seat plate, 42-second bearing, 43-longitudinal shaft, 44-gear, 441-sloping surface, 45-slide groove, 46-limiting block, 461-tooth, 47-rotating rod, 48-handle, 5-headrest, 51-U-shaped pillow, 52-Hook and loop fastener, 521-Hook and loop hook surface, 522-Hook and loop rough surface. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0036] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.
[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.
[0038] like Figures 1-6 As shown, this utility model discloses a headrest for use with wheelchairs or flatbeds, including a movable seat 1, a lifting mechanism 2, a first rotating mechanism 3, a second rotating mechanism 4, and a headrest 5. The movable seat 1 includes a base 11 and casters 12. Multiple casters 12 are arranged in a circumferential array around the periphery of the base 11. The lifting mechanism 2 is vertically movable on the base 11. The first rotating mechanism 3 is rotatable on the lifting mechanism 2. The second rotating mechanism 4 is rotatable on the first rotating mechanism 3. The headrest 5 is mounted on the second rotating mechanism 4. In this embodiment, the casters 12 are arranged in a circumferential array to ensure the stability and flexibility of the base 11 during movement. Then, through the coordinated adjustment between the lifting mechanism 2, the first rotating mechanism 3, and the second rotating mechanism 4, the horizontal height, forward and backward tilt angle, and lateral tilt angle of the headrest 5 can be adjusted to meet the head position adjustment needs of patients in flatbeds or wheelchairs during oral treatment.
[0039] Continue to refer to Figure 3 , Figure 4In this embodiment, the first rotating mechanism 3 includes a lower base plate 31, an ear plate 32, a horizontal shaft 33, a first bearing 34, and a connecting plate 35. The lower base plate 31 is located at the top of the lifting mechanism 2, and an ear plate 32 is provided on each of the left and right sides. The two ends of the horizontal shaft 33 are connected to an ear plate 32 respectively. The first bearing 34 is sleeved on the horizontal shaft 33, and its upper part is connected to the lower end of the connecting plate 35. Furthermore, the first rotating mechanism 3 also includes a threaded hole 36 and a bolt 37. The threaded hole 36 is opened on the side of the ear plate 32 and is threadedly connected to the bolt 37. When the bolt 37 rotates, its tail abuts against and locks or separates from the side of the first bearing 34. It is worth noting that the first bearing 34 in this embodiment can be rotated and adjusted in the front-back direction. By setting the locking structure composed of the threaded hole 36 and the bolt 37, it is convenient for doctors to fine-tune and lock the front-back tilt angle of the patient's head to obtain the best diagnostic angle and field of vision. In addition, the head of the bolt 37 is provided with anti-slip protrusions 371, which makes it easy to grip and rotate precisely. The tail is provided with rubber blocks 372, which can improve durability, increase friction, and prevent the bolt 37 from loosening during use. This ensures the stability of the tail of the bolt 37 and the side of the first bearing 34 at different positions, avoiding equipment instability or failure due to loosening.
[0040] Furthermore, the second rotating mechanism 4 includes an upper seat plate 41, a second bearing 42, and a longitudinal shaft 43. The lower surface of the upper seat plate 41 is connected to the upper part of the second bearing 42. A second bearing 42 is sleeved at each end of the longitudinal shaft 43, and the middle part is connected to the upper end of the connecting plate 35, allowing the upper seat plate 41 to rotate smoothly laterally. (Continue to refer to...) Figure 5 The second rotating mechanism 4 also includes a gear 44, a slide groove 45, and a limiting block 46. The gear 44 is located at one end of the longitudinal shaft 43. The slide groove 45 is opened on the lower surface of the upper seat plate 41 near the gear 44 and is adapted to the upper end of the limiting block 46. When the limiting block 46 slides back and forth on the slide groove 45, the limiting block 46 and the gear 44 are locked or separated. Specifically, each tooth of the gear 44 has an inclined surface 441 on its outer side. The limiting block 46 near the outer side of the gear 44 has multiple locking teeth 461. The locking teeth 461 can mesh with the gear 44, and the sides of the locking teeth 461 also have the same inclined surface 441. By sliding the limiting block 46, the second rotating mechanism 4 can be easily locked or released, ensuring the stability of the headrest 5 in different positions.
[0041] Furthermore, the second rotating mechanism 4 also includes a rotating rod 47 and a handle 48. One end of the rotating rod 47 is rotatably connected to the limiting block 46, and the other end is rotatably connected to the handle 48. One end of the handle 48 is rotatably connected to the upper seat plate 41. When the other end of the handle 48 rotates, it drives the rotating rod 47 to move and causes the limiting block 46 to slide back and forth in the slide groove 45. Through the lever effect generated by the cooperation of the rotating rod 47 and the handle 48, only a small force needs to be applied to generate a large torque, thereby effectively pushing the limiting block 46 to move in the slide groove 45.
[0042] Continue to refer to Figure 2 , Figure 5 and Figure 6 The headrest 5 includes a U-shaped pillow 51 and Velcro 52. One side of the Velcro 52 is located on the back of the U-shaped pillow 51, and the other side is located on the second rotating mechanism 4. The Velcro 52 is designed to be detachable for easy cleaning, disinfection, replacement, and maintenance. Specifically, the back of the U-shaped pillow 51 has a Velcro hook side 521, and the upper surface of the upper seat plate 41 has a Velcro loop side 522. It is worth noting that the surface material of the headrest 5 is preferably medical-grade PVC or PU leather, which can withstand frequent use and is easy to clean and disinfect, meeting the high hygiene standards of the medical environment. The internal material is preferably high-density memory foam, which is not easily deformed and has a long service life. It can be molded according to the shape of the patient's head, providing personalized support. It is soft and elastic, effectively distributing pressure and reducing patient discomfort.
[0043] Furthermore, in this embodiment, the base 11 is provided with five casters 12 around its perimeter. Each caster 12 includes a wheel 121 and a brake assembly 122. The brake assembly 122 is rotatably disposed above the wheel 121 and can be quickly fixed in position by stepping on it, ensuring stability during the diagnosis and treatment process.
[0044] In some embodiments, an infrared receiving module, a remote controller, and a control module are also included. The control module is electrically connected to the lifting mechanism 2, the first rotating mechanism 3, the second rotating mechanism 4, and the infrared receiving module, respectively. Specifically, the lifting mechanism 2 includes a servo cylinder. The cylinder body of the servo cylinder is connected to the moving base 1, and the piston is connected to the first rotating mechanism 3. Both the first rotating mechanism 3 and the second rotating mechanism 4 include drive motors. It can be understood that the servo motor of the servo cylinder can be installed in the middle of the lower surface of the base 11, and the cylinder body of the servo cylinder can be installed in the middle of the upper surface of the base 11. By setting the drive motor near the first bearing 34 and the second bearing 41, the rotation control of the first bearing 34 and the second bearing 41 can be realized. The horizontal height, fore-aft tilt angle, and lateral tilt angle of the headrest 5 can be quickly adjusted with one hand using a remote controller.
[0045] When a patient is transferred to the dental department by stretcher, the headrest 5 is adjusted to a suitable horizontal height, forward / backward tilt angle, and lateral tilt angle according to the height of the stretcher. The headrest of this embodiment is brought close to the stretcher, and then the patient is moved forward, with the head resting on the headrest 5 while the body remains on the stretcher. The casters 12 are secured by the brake assembly 122 to further ensure patient safety, and dental treatment can then proceed. When a patient is moved to the dental department in a wheelchair, the headrest of this embodiment is moved to the rear of the wheelchair and close to it. The headrest 5 is adjusted to a suitable horizontal height, forward / backward tilt angle, and lateral tilt angle, allowing the patient's head to tilt back and be supported by the headrest 5, and dental treatment can then proceed.
[0046] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.
Claims
1. A headrest for use with a wheelchair or flatbed, characterized in that, include: A movable seat includes a base and casters, with a plurality of casters arranged in a circumferential array around the periphery of the base; A lifting mechanism is mounted vertically and can be raised and lowered on the base. The first rotating mechanism is rotatably mounted on the lifting mechanism; The second rotating mechanism is rotatably mounted on the first rotating mechanism; The headrest is mounted on the second rotating mechanism.
2. The headrest for use with a wheelchair or flatbed according to claim 1, characterized in that, The first rotating mechanism includes a lower base plate, ear plates, a horizontal shaft, a first bearing, and a connecting plate. The lower base plate is located at the top of the lifting mechanism, and an ear plate is provided on each of the left and right sides. The two ends of the horizontal shaft are respectively connected to an ear plate. The first bearing is sleeved on the horizontal shaft, and its upper part is connected to the lower end of the connecting plate.
3. A headrest for use with a wheelchair or flatbed according to claim 2, characterized in that, The first rotating mechanism further includes a threaded hole and a bolt. The threaded hole is opened on the side of the ear plate and is threadedly connected to the bolt. When the bolt rotates, the tail end abuts against the side of the first bearing to lock or separate.
4. A headrest for use with a wheelchair or flatbed according to claim 3, characterized in that, The second rotating mechanism includes an upper seat plate, a second bearing, and a longitudinal shaft. The lower surface of the upper seat plate is connected to the upper part of the second bearing. The two ends of the longitudinal shaft are respectively fitted with a second bearing, and the middle part is connected to the upper end of the connecting plate.
5. A headrest for use with a wheelchair or flatbed according to claim 4, characterized in that, The second rotating mechanism further includes a gear, a slide groove, and a limiting block. The gear is located at one end of the longitudinal shaft. The slide groove is opened on the lower surface of the upper seat plate near the gear and is adapted to the upper end of the limiting block. When the limiting block slides back and forth on the slide groove, the limiting block and the gear are locked or separated.
6. A headrest for use with a wheelchair or flatbed according to claim 5, characterized in that, The second rotating mechanism also includes a rotating rod and a handle. One end of the rotating rod is rotatably connected to the limiting block, and the other end is rotatably connected to the handle. One end of the handle is rotatably connected to the upper seat plate. When the other end of the handle rotates, it drives the rotating rod to move and causes the limiting block to slide back and forth in the groove.
7. A headrest for use with a wheelchair or flatbed according to claim 1, characterized in that, The headrest includes a U-shaped pillow and Velcro, with one side of the Velcro attached to the back of the U-shaped pillow and the other side attached to the second rotating mechanism.
8. A headrest for use with a wheelchair or flatbed according to claim 1, characterized in that, The omnidirectional wheel includes a wheel and a brake assembly, the brake assembly being rotatably disposed above the wheel.
9. A headrest for use with a wheelchair or flatbed according to claim 1, characterized in that, It also includes an infrared receiving module and a remote control and control module for use. The control module is electrically connected to the lifting mechanism, the first rotating mechanism, the second rotating mechanism and the infrared receiving module respectively.
10. A headrest for use with a wheelchair or flatbed according to claim 9, characterized in that, The lifting mechanism includes a servo electric cylinder, the cylinder body of which is connected to the movable seat, and the piston is connected to the first rotating mechanism. Both the first rotating mechanism and the second rotating mechanism include a drive motor.