Forward-inclined dental chair
The forward-leaning dental chair addresses the limitations of traditional chairs by enabling adjustable positioning and posture customization, enhancing patient comfort and surgical efficiency through an adjustable back cushion and rotatable workbench.
Patent Information
- Application Number
- CN202411282915.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2024-12-13
AI Technical Summary
Traditional dental chairs require patients to lie on their backs, leading to feelings of nervousness and potential swallowing of debris during surgery, which hinders effective dental work.
A forward-leaning dental chair design with an adjustable back cushion, headrest, and rotatable workbench, allowing patients to sit forward with their chest on the back cushion and face on the headrest, and enabling adjustments to accommodate different patient postures and physiques.
The design prevents accidental swallowing of debris and enhances the chair's practicality by allowing customized positioning for various patients, improving surgical comfort and efficiency.
Smart Images
Figure CN119112581A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of dental chairs, and in particular to a forward-leaning dental chair. Background Art
[0002] Dental chairs are used for oral surgery and examination and treatment of oral diseases. Most dental chairs are electric, and their main structure consists of 8 parts. The whole machine is fixed to the ground with a base plate, and the base plate is connected to the upper part of the dental chair through a bracket. The movement of the dental chair is controlled by the control switch on the back of the chair. Its working principle is: the control switch starts the motor to run and drive the transmission mechanism to move the corresponding parts of the dental chair. According to the treatment needs, the control switch button is operated, and the dental chair can complete the actions of rising, falling, tilting, supine and resetting.
[0003] Traditionally, when doctors perform dental surgery, patients can only lie on their backs on dental chairs. Although this method allows doctors to conveniently perform surgery on the patient's maxillofacial area, it is actually proven that patients will obviously feel nervous (fearful), which may affect the operation. In addition, when patients lie on their backs on a medical bed for surgery, they may swallow debris into their throats by mistake, which is not conducive to the doctor's dental work on the patient. Summary of the invention
[0004] The object of the present invention is to provide a forward-leaning dental chair to solve the above-mentioned deficiencies in the prior art.
[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a forward-leaning dental chair, comprising a connecting seat and a workbench, a water basin is arranged on the top surface of the workbench, and also comprising: a seat cushion, which is fixedly mounted on the top surface of the connecting seat, and a driving component for driving the workbench to rotate is arranged between the connecting seat and the seat cushion; a back cushion, which is rotatably arranged on the seat cushion, and an adjustment component for driving the back cushion to rotate is arranged on the seat cushion; a headrest, which is rotatably arranged on the top of the back cushion, and a cavity is opened on the headrest.
[0006] Furthermore, an adjusting rod is rotatably connected to the connecting seat, a fixing seat is rotatably mounted on the other end of the adjusting rod, and a bottom plate is fixedly mounted on the bottom surface of the fixing seat.
[0007] Furthermore, the driving assembly includes a first cylinder fixedly mounted on the bottom surface of the seat cushion, a first connecting plate fixedly mounted on the output end of the first cylinder, and a first rack fixedly mounted on the first connecting plate; a rotating drum is rotatably arranged between the connecting seat and the seat cushion, and a first gear meshing with the first rack is fixedly mounted on the top circumferential surface of the rotating drum; a fixing column is fixedly mounted on the middle circumferential surface of the rotating drum, a connecting rod is fixedly mounted on the circumferential surface of the fixing column, and the workbench is fixedly mounted on the connecting rod.
[0008] Furthermore, a slide frame is fixedly mounted on the bottom surface of the seat cushion, a slide rail is slidably arranged inside the slide frame, and the slide rail is fixedly mounted on the first rack.
[0009] Furthermore, the adjustment assembly includes a second cylinder fixedly mounted on the bottom surface of the seat cushion, a second connecting plate fixedly mounted on the output end of the second cylinder, and a second rack fixedly mounted on the second connecting plate; a rotating shaft is rotatably connected to the seat cushion, and a second gear meshing with the second rack is fixedly mounted on one end of the rotating shaft; a rotating block is fixedly mounted on the other end of the rotating shaft, a rotating plate is fixedly mounted on the rotating block, a rotating frame is provided on the surface sliding sleeve of the rotating plate, and the rotating frame is fixedly mounted on the side wall of the cushion.
[0010] Furthermore, an electric push rod is fixedly mounted on the rotating frame, an extension plate is fixedly mounted on the output end of the electric push rod, and the extension plate is fixedly mounted on the rotating block.
[0011] Furthermore, a connecting block is fixedly installed on the back of the cushion, an adjustment frame is slidably arranged on the connecting block, a fixing plate is fixedly installed on the top surface of the adjustment frame, a fixing block is rotatably connected to the top surface of the fixing plate, and the fixing block is fixedly installed on the bottom surface of the headrest; a locking assembly for limiting the sliding of the adjustment frame is arranged between the connecting block and the adjustment frame.
[0012] Furthermore, the locking assembly includes an empty slot opened on the adjustment frame, two limit blocks are slidably arranged inside the empty slot, and elastic parts are arranged between the two limit blocks and the empty slot; and a plurality of limit slots adapted to the limit blocks are arranged on the connecting block.
[0013] Furthermore, the elastic member is a spring, one end of the spring is fixedly installed in the empty slot, and the other end of the spring is fixedly installed on the limit block.
[0014] Furthermore, a slide rod is fixedly installed inside the empty slot, the two limit blocks are slidably sleeved on the slide rod along the axial direction, and the spring is sleeved on the circumferential surface of the slide rod.
[0015] In the above technical solution, the present invention provides a forward-leaning dental chair, which has the following beneficial effects: By utilizing the adjustable back cushion on the seat cushion, adjusting the headrest on the top of the back cushion, and adjusting the height and angle of the back cushion, the patient's chest can be placed on the back cushion and the face on the headrest, thereby avoiding the situation in the prior art where the patient lies on his back on the medical bed for surgery, causing foreign objects to be accidentally swallowed into the throat.
[0016] By utilizing the driving assembly, the position of the workbench and the basin on the workbench can be adjusted according to the postures of different patients, thereby improving the practicality of the dental chair. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of the back structure; Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the local structure; Figure 4 The embodiment of the present invention provides Figure 3 The structural diagram at A in the middle; Figure 5 The embodiment of the present invention provides Figure 3 Schematic diagram of the structure at B in the middle; Figure 6 The embodiment of the present invention provides Figure 2 Schematic diagram of the structure of the middle headrest; Figure 7 The embodiment of the present invention provides Figure 6 Schematic diagram of the structure at C in the middle; Figure 8 The embodiment of the present invention provides Figure 6 A partial structural diagram of Fig. 9 The embodiment of the present invention provides Figure 8 Schematic diagram of the structure at D in the figure.
[0019] Description of reference numerals: 11. Bottom plate; 12. Fixed seat; 13. Adjustment rod; 14. Connecting seat; 21. Cushion; 22. Cushion; 23. Headrest; 231. Cavity; 24. Guardrail; 301. First cylinder; 302. First connecting plate; 303. First rack; 304. Rotating drum; 305. First gear; 306. Fixed column; 307. Connecting rod; 308. Workbench; 309. Basin; 310. Slide frame; 311. Slide rail; 312. The second cylinder; 313, the second connecting plate; 314, the second rack; 315, the rotating shaft; 316, the second gear; 317, the rotating block; 318, the rotating plate; 319, the rotating frame; 320, the electric push rod; 321, the extension plate; 401, the connecting block; 402, the adjusting frame; 403, the fixing plate; 404, the fixing block; 405, the empty slot; 406, the sliding rod; 407, the limiting block; 408, the elastic member; 409, the limiting slot. DETAILED DESCRIPTION
[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0021] See also Figure 1-9 A forward-leaning dental chair provided in an embodiment of the present invention comprises a connecting seat 14 and a workbench 308, a water basin 309 is arranged on the top surface of the workbench 308, and further comprises: a seat cushion 21, which is fixedly mounted on the top surface of the connecting seat 14, and a driving component for driving the workbench 308 to rotate is arranged between the connecting seat 14 and the seat cushion 21; a back cushion 22, which is rotatably arranged on the seat cushion 21, and an adjusting component for driving the back cushion 22 to rotate is arranged on the seat cushion 21; a headrest 23, which is rotatably arranged on the top of the back cushion 22, and a cavity 231 is opened on the headrest 23.
[0022] In the above technical solution, by utilizing the adjustable back cushion 22 on the seat cushion 21 and adjusting the headrest 23 on the top of the back cushion 22, the height and angle of the back cushion 22 are adjusted, so that the patient's chest can be placed on the back cushion 22 and the face can be placed on the headrest 23, thereby avoiding the situation in the prior art that the patient lies on his back on the medical bed for surgery, causing foreign objects to be accidentally swallowed into the throat; by utilizing the drive component, the position of the workbench 308 and the basin 309 on the workbench 308 can be adjusted according to the postures of different patients, thereby improving the practicality of the dental chair.
[0023] Furthermore, guardrails 24 are rotatably provided on both sides of the seat cushion 21 corresponding to each other.
[0024] In the above technical solution, the guardrail 24 is used to protect the patient sitting on the cushion 21, thereby preventing the patient from falling off the cushion 21 as much as possible.
[0025] Specifically, the connecting seat 14 is rotatably connected to the adjusting rod 13 , the other end of the adjusting rod 13 is rotatably mounted to the fixing seat 12 , and the bottom surface of the fixing seat 12 is fixedly mounted to the bottom plate 11 .
[0026] In the above technical solution, by utilizing the fixing seat 12 on the bottom plate 11 and the adjusting rod 13 on the fixing seat 12 , the height and the tilt angle of the seat cushion 21 can be adjusted.
[0027] Specifically, the driving assembly includes a first cylinder 301 fixedly mounted on the bottom surface of the seat cushion 21, a first connecting plate 302 fixedly mounted on the output end of the first cylinder 301, and a first rack 303 fixedly mounted on the first connecting plate 302; a rotating drum 304 is rotatably arranged between the connecting seat 14 and the seat cushion 21, and a first gear 305 meshing with the first rack 303 is fixedly mounted on the top circumferential surface of the rotating drum 304; a fixing column 306 is fixedly mounted on the middle circumferential surface of the rotating drum 304, a connecting rod 307 is fixedly mounted on the circumferential surface of the fixing column 306, and a workbench 308 is fixedly mounted on the connecting rod 307.
[0028] In the above technical solution, when the position of the workbench 308 needs to be adjusted, the first rack 303 can be moved by utilizing the first cylinder 301, and the first rack 303 and the first gear 305 cooperate with each other to make the fixed column 306 on the rotating cylinder 304 rotate, so that the workbench 308 on the connecting rod 307 can rotate under the action of the fixed column 306, so that the position of the workbench 308 can be adjusted according to the patient's sitting posture.
[0029] Specifically, a slide frame 310 is fixedly installed on the bottom surface of the seat cushion 21 , a slide rail 311 is slidably provided inside the slide frame 310 , and the slide rail 311 is fixedly installed on the first rack 303 .
[0030] In the above technical solution, by utilizing the slide frame 310 on the bottom surface of the seat cushion 21 and the slide rail 311 on the first rack 303 , the sliding direction and sliding distance of the first rack 303 can be limited.
[0031] Specifically, the adjustment component includes a second cylinder 312 fixedly mounted on the bottom surface of the seat cushion 21, a second connecting plate 313 fixedly mounted on the output end of the second cylinder 312, and a second rack 314 fixedly mounted on the second connecting plate 313; a rotating shaft 315 is rotatably connected to the seat cushion 21, and a second gear 316 meshing with the second rack 314 is fixedly mounted on one end of the rotating shaft 315; a rotating block 317 is fixedly mounted on the other end of the rotating shaft 315, and a rotating plate 318 is fixedly mounted on the rotating block 317, and a rotating frame 319 is provided on the surface sliding sleeve of the rotating plate 318, and the rotating frame 319 is fixedly mounted on the side wall of the cushion 22.
[0032] In the above technical solution, when it is necessary to adjust the angle of the back cushion 22 on the seat cushion 21, the second rack 314 can be moved by the second cylinder 312, and the second rack 314 and the second gear 316 can cooperate with each other to drive the rotating shaft 315 on the seat cushion 21 to rotate, so the rotating plate 318 and the rotating frame 319 can rotate driven by the rotating shaft 315, thereby adjusting the angle between the back cushion 22 and the seat cushion 21, thereby achieving the effect of being able to conveniently adjust the surgical position of the patient.
[0033] Specifically, an electric push rod 320 is fixedly mounted on the rotating frame 319 , an extension plate 321 is fixedly mounted on the output end of the electric push rod 320 , and the extension plate 321 is fixedly mounted on the rotating block 317 .
[0034] In the above technical solution, by utilizing the electric push rod 320, the rotating plate 318 in the rotating frame 319 can slide along the length direction of the rotating frame 319, thereby achieving the effect of adjusting the gap size between the seat cushion 21 and the back cushion 22, so that the dental chair can be convenient for patients of different physiques to use.
[0035] Specifically, a connecting block 401 is fixedly installed on the back of the cushion 22, an adjusting frame 402 is slidably arranged on the connecting block 401, a fixing plate 403 is fixedly installed on the top surface of the adjusting frame 402, a fixing block 404 is rotatably connected to the top surface of the fixing plate 403, and the fixing block 404 is fixedly installed on the bottom surface of the headrest 23; a locking assembly for limiting the sliding of the adjusting frame 402 is arranged between the connecting block 401 and the adjusting frame 402.
[0036] In the above technical solution, after the patient's chest rests on the cushion 22, the headrest 23 is rotated so that the headrest 23 and the base plate 11 are in a parallel state, thereby achieving the effect of enabling the headrest 23 to support the patient's head; and by utilizing the mutual sliding between the connecting block 401 and the adjustment frame 402, the height of the headrest 23 can be adjusted.
[0037] Specifically, the locking assembly includes an empty slot 405 opened on the adjustment frame 402, two limit blocks 407 are slidingly arranged inside the empty slot 405, and elastic members 408 are arranged between the two limit blocks 407 and the empty slot 405; a plurality of limit slots 409 adapted to the limit blocks 407 are arranged on the connecting block 401.
[0038] Specifically, the elastic member 408 is a spring, one end of which is fixedly installed in the empty slot 405 , and the other end of which is fixedly installed on the limit block 407 .
[0039] In the above technical solution, by utilizing a spring, when the adjustment frame 402 slides along the connecting block 401 and slides to an appropriate position, the limit block 407 can be snapped into the limit groove 409 at the corresponding position on the connecting block 401 by the elastic force of the spring, thereby achieving the effect of limiting the height position of the headrest 23 after adjustment.
[0040] Specifically, a slide rod 406 is fixedly installed inside the empty slot 405 , two limit blocks 407 are slidably sleeved on the slide rod 406 along the axial direction, and a spring is sleeved on the circumferential surface of the slide rod 406 .
[0041] In the above technical solution, by utilizing the sliding rod 406 , the sliding direction of the limit block 407 can be limited.
[0042] Working principle: When the patient uses the dental chair with his chest resting on the pillow, the second rack 314 can be moved by the second cylinder 312, and the second rack 314 and the second gear 316 cooperate with each other to drive the rotating shaft 315 on the seat cushion 21 to rotate, so the rotating plate 318 and the rotating frame 319 can rotate under the drive of the rotating shaft 315, thereby adjusting the angle between the cushion 22 and the seat cushion 21, thereby achieving the effect of being able to conveniently adjust the surgical position of the patient; And by using the electric push rod 320, the rotating plate 318 in the rotating frame 319 can slide along the length direction of the rotating frame 319, so as to adjust the gap between the seat cushion 21 and the back cushion 22, so that the dental chair can be convenient for patients with different physiques to use; Then, when the patient's chest rests on the cushion 22, the headrest 23 is rotated so that the headrest 23 is parallel to the bottom plate 11, thereby achieving the effect of enabling the headrest 23 to support the patient's head; and by utilizing the mutual sliding between the connecting block 401 and the adjusting frame 402, the height of the headrest 23 can be adjusted; and by utilizing the spring, when the adjusting frame 402 slides along the connecting block 401 and slides to an appropriate position, the limiting block 407 can be snapped into the limiting groove 409 at the corresponding position on the connecting block 401 by the elastic force of the spring, thereby achieving the effect of limiting the height position of the headrest 23 after adjustment; Therefore, after the patient's forward posture is adjusted, the first rack 303 is able to move under the action of the first cylinder 301 by utilizing the first cylinder 301, and the cylinder 304 is rotated by the cooperation between the first rack 303 and the first gear 305, so that the fixed column 306 on the rotating cylinder 304 is rotated, and then the workbench 308 on the connecting rod 307 is able to rotate under the action of the fixed column 306, so that the position of the workbench 308 is adjusted according to the patient's sitting posture, so as to adjust the position of the basin 309 on the workbench 308 to be directly below the headrest 23 for use. The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A forward-leaning dental chair, comprising a connecting seat (14) and a workbench (308), characterized in that: A water basin (309) is arranged on the top surface of the workbench (308), and further comprises: a seat cushion (21) fixedly mounted on the top surface of the connecting seat (14), wherein a driving component for driving the workbench (308) to rotate is provided between the connecting seat (14) and the seat cushion (21); A back cushion (22) which is rotatably arranged on the seat cushion (21), and an adjustment component for driving the back cushion (22) to rotate is arranged on the seat cushion (21); A headrest (23) is rotatably arranged on the top of the back cushion (22), and a cavity (231) is provided on the headrest (23).
2. The forward-leaning dental chair according to claim 1, characterized in that: An adjusting rod (13) is rotatably connected to the connecting seat (14), a fixing seat (12) is rotatably mounted on the other end of the adjusting rod (13), and a bottom plate (11) is fixedly mounted on the bottom surface of the fixing seat (12).
3. The forward-leaning dental chair according to claim 1, characterized in that: The driving assembly comprises a first cylinder (301) fixedly mounted on the bottom surface of the seat cushion (21), a first connecting plate (302) fixedly mounted on the output end of the first cylinder (301), and a first rack (303) fixedly mounted on the first connecting plate (302); A rotating drum (304) is rotatably arranged between the connecting seat (14) and the seat cushion (21), and a first gear (305) meshing with the first rack (303) is fixedly mounted on the top peripheral surface of the rotating drum (304); A fixing column (306) is fixedly mounted on the central circumferential surface of the rotating drum (304), a connecting rod (307) is fixedly mounted on the circumferential surface of the fixing column (306), and the workbench (308) is fixedly mounted on the connecting rod (307).
4. The forward-leaning dental chair according to claim 3, characterized in that: A sliding frame (310) is fixedly mounted on the bottom surface of the seat cushion (21), a sliding rail (311) is slidably arranged inside the sliding frame (310), and the sliding rail (311) is fixedly mounted on the first rack (303).
5. The forward-leaning dental chair according to claim 1, characterized in that: The adjustment assembly comprises a second cylinder (312) fixedly mounted on the bottom surface of the seat cushion (21); a second connecting plate (313) is fixedly mounted on the output end of the second cylinder (312); and a second rack (314) is fixedly mounted on the second connecting plate (313); The seat cushion (21) is rotatably connected to a rotating shaft (315), and one end of the rotating shaft (315) is fixedly mounted with a second gear (316) meshing with the second rack (314); A rotating block (317) is fixedly mounted on the other end of the rotating shaft (315), a rotating plate (318) is fixedly mounted on the rotating block (317), a rotating frame (319) is slidably sleeved on the surface of the rotating plate (318), and the rotating frame (319) is fixedly mounted on the side wall of the back cushion (22).
6. The forward-leaning dental chair according to claim 5, characterized in that: An electric push rod (320) is fixedly mounted on the rotating frame (319), an extension plate (321) is fixedly mounted on the output end of the electric push rod (320), and the extension plate (321) is fixedly mounted on the rotating block (317).
7. The forward-leaning dental chair according to claim 1, characterized in that: A connecting block (401) is fixedly mounted on the back of the back cushion (22); an adjusting frame (402) is slidably mounted on the connecting block (401); a fixing plate (403) is fixedly mounted on the top surface of the adjusting frame (402); a fixing block (404) is rotatably connected to the top surface of the fixing plate (403); and the fixing block (404) is fixedly mounted on the bottom surface of the headrest (23); A locking component for limiting the sliding of the adjusting frame (402) is provided between the connecting block (401) and the adjusting frame (402).
8. The forward-leaning dental chair according to claim 7, characterized in that: The locking assembly comprises an empty slot (405) formed on the adjusting frame (402), two limit blocks (407) being slidably disposed inside the empty slot (405), and elastic members (408) being disposed between the two limit blocks (407) and the empty slot (405); The connection block (401) is provided with a plurality of limit grooves (409) adapted to the limit blocks (407).
9. The forward-leaning dental chair according to claim 8, characterized in that: The elastic member (408) is a spring, one end of which is fixedly mounted in the empty slot (405), and the other end of which is fixedly mounted on the limit block (407).
10. The forward-leaning dental chair according to claim 9, characterized in that: A sliding rod (406) is fixedly installed inside the empty groove (405), the two limit blocks (407) are axially slidably sleeved on the sliding rod (406), and the spring is sleeved on the circumferential surface of the sliding rod (406).