Dental headrest frame structure with pressing transmission locking function

Abstract

The invention is applicable to the technical field of dental headrests, and provides a dental headrest frame structure with a pressing transmission locking function, which comprises a headrest lifting one-way locking mechanism module, a headrest lower joint module and a headrest upper joint module, the headrest lifting one-way locking mechanism module, the headrest lower joint module and the headrest upper joint module are sequentially arranged from right to left; the headrest upper joint module comprises a box body, a lifting aluminum pipe body is arranged in the box body in a penetrating mode, a transmission aluminum pipe is arranged in the lifting aluminum pipe body, insections are arranged on the side walls of the two sides of the transmission aluminum pipe, the transmission aluminum pipe is symmetrically connected with racks, and a locking adjusting block is arranged at the end, away from the headrest lower joint module, of the transmission aluminum pipe in a penetrating mode. According to the dental headrest frame structure, when a doctor uses a headrest to adjust the angle of the head of a patient, independent pressing and height adjustment are facilitated; in addition, a prompt sound is given when the head rises, a prompt function is given when the head of the patient moves, and use is greatly facilitated.

Description

Technical Field

[0001] This invention belongs to the field of dental headrest technology, and particularly relates to a dental headrest frame structure with a press-driven locking function. Background Technology

[0002] Dental headrests are typically used in dental procedures to support and protect the patient's head, especially during oral treatments. They help patients maintain a stable posture while reducing discomfort during the procedure. Their design considers both patient comfort and treatment precision, while also facilitating the dentist's procedures. For example:

[0003] Chinese patent application number 201720977027.5 and publication number CN208942741U discloses a dental chair headrest positioning and locking mechanism, including a support and baffles. The support has baffles on both sides of its upper surface, and each baffle has a bearing inside. A metal plate is located at the lower end of a connecting rod, and a rubber pad is located on the upper surface of the metal plate. A washer is located at the top of the connecting rod, and a first spring is located on the lower surface of the washer. The lower end of the first spring is connected to the upper surface of the washer. A top plate is located at the upper end of the support rod. This dental headrest positioning and locking device works by pressing down on the washer, which moves the connecting rod downwards. The connecting rod then pushes the metal plate downwards. After the angle adjustment is completed, releasing the washer and the first spring resets the connecting rod, allowing the rubber pad to continue rubbing against the inner wall of the cylinder. This simple structure allows for easy adjustment of the headrest, facilitating production and use.

[0004] Currently, there is no headrest on the market that can lock the headrest height and has an audible alert when it rises. In response, this application proposes a dental headrest structure with a press-driven locking function. Summary of the Invention

[0005] The purpose of this invention is to provide a dental headrest structure with a press-driven locking function, in order to solve the problem that there is no headrest structure on the market that can lock the headrest height and has an audible prompt when it rises.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dental headrest frame structure with a pressing transmission locking function, comprising a headrest lifting one-way locking mechanism module, a headrest lower joint module and a headrest upper joint module, wherein the headrest lifting one-way locking mechanism module, the headrest lower joint module and the headrest upper joint module are arranged sequentially from right to left;

[0007] The headrest upper joint module includes a box body through which a lifting aluminum tube body passes. Inside the lifting aluminum tube body is a transmission aluminum tube. The two side walls of the transmission aluminum tube are provided with teeth and are symmetrically connected with racks. A locking adjustment block passes through the end of the transmission aluminum tube opposite to the headrest lower joint module. One end of the locking adjustment block is connected to a headrest fixing block end cap. A headrest lifting button is provided at the end of the transmission aluminum tube located in the headrest lower joint module.

[0008] The lower joint module of the headrest is rotatably connected to the box body, and a connecting plate is provided between the lower joint module of the headrest and the upper joint module of the headrest. The upper joint module of the headrest is rotatably connected to the connecting plate.

[0009] Preferably, the lower joint module of the headrest includes a lower joint fixing block, which is adapted to the main body of the lifting aluminum tube and passes through the interior of the main body of the lifting aluminum tube.

[0010] Preferably, a lifting sliding sleeve is provided between the transmission aluminum tube and the box body, and a pressing end cover is provided between the transmission aluminum tube and the headrest lifting button.

[0011] Preferably, a lifting aluminum tube end cap is provided between the headrest fixing block end cap and the transmission aluminum tube, and a locking piece is provided between the locking adjustment block and the transmission aluminum tube.

[0012] Preferably, the locking plate is fitted with an unlocking push block, the end of which is inserted into the interior of the transmission aluminum tube, and a return spring is provided between the outer side of the locking plate and the inner layer of the unlocking push block, the return spring being fitted onto the locking plate.

[0013] Preferably, the box body is provided with headrest bracket fixing blocks on both sides, and the transmission aluminum tube is provided with a fixing limit block, which abuts against the inner wall of the lifting aluminum tube body.

[0014] The present invention has at least the following beneficial effects:

[0015] The dental headrest structure proposed in this invention effectively solves the problem of doctors being able to press and adjust the height individually when using the headrest to adjust the angle of the patient's head; in addition, there is an audible prompt when it rises, which serves as a reminder if the patient's head moves, greatly facilitating its use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure at the positions of the lifting one-way locking mechanism module and the headrest lower joint module of the present invention;

[0019] Figure 4 This is a schematic diagram of the end structure of the lifting one-way locking mechanism module of the present invention.

[0020] In the attached diagram, the following are the reference numerals: 1. Headrest lifting one-way locking mechanism module; 2. Lower headrest joint module; 3. Upper headrest joint module; 4. Headrest lifting button; 5. Lower joint fixing block; 6. Press end cap; 7. Lifting sliding sleeve; 8. Connecting plate; 9. Headrest bracket fixing block; 10. Fixed limit block; 11. Rack; 12. Transmission aluminum tube; 13. Headrest fixing block end cap; 14. Locking adjustment block; 15. Lifting aluminum tube end cap; 16. Locking plate; 17. Return spring; 18. Unlocking push block; 19. Lifting aluminum tube body. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Example

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 The present invention provides a technical solution: a dental headrest frame structure with a pressing transmission locking function, including a headrest lifting one-way locking mechanism module 1, a headrest lower joint module 2 and a headrest upper joint module 3, which are arranged from right to left.

[0024] The headrest upper joint module 3 includes a box body through which a lifting aluminum tube body 19 passes. Inside the lifting aluminum tube body 19, there is a transmission aluminum tube 12. The two side walls of the transmission aluminum tube 12 are provided with teeth and are symmetrically connected with racks 11. A locking adjustment block 14 passes through the end of the transmission aluminum tube 12 away from the headrest lower joint module 2. One end of the locking adjustment block 14 is connected to the headrest fixing block end cap 13. A headrest lifting button 4 is provided at the end of the transmission aluminum tube 12 located in the headrest lower joint module 2.

[0025] The lower joint module 2 of the headrest is rotatably connected to the box body. A connecting plate 8 is provided between the lower joint module 2 of the headrest and the upper joint module 3 of the headrest. The upper joint module 3 of the headrest is rotatably connected to the connecting plate 8.

[0026] The headrest lower joint module 2 includes a lower joint fixing block 5, which is adapted to the lifting aluminum tube body 19 and passes through the lifting aluminum tube body 19.

[0027] A lifting sliding sleeve 7 is provided between the transmission aluminum tube 12 and the box body, and a pressing end cover 6 is provided between the transmission aluminum tube 12 and the headrest lifting button 4.

[0028] A lifting aluminum tube end cap 15 is provided between the headrest fixing block end cap 13 and the transmission aluminum tube 12, and a locking piece 16 is provided between the locking adjustment block 14 and the transmission aluminum tube 12.

[0029] The locking plate 16 is fitted with an unlocking push block 18. The end of the unlocking push block 18 is inserted into the interior of the transmission aluminum tube 12. A return spring 17 is provided between the outer side of the locking plate 16 and the inner layer of the unlocking push block 18. The return spring 17 is fitted on the locking plate 16.

[0030] The box body is provided with headrest bracket fixing blocks 9 on both sides, and the transmission aluminum tube 12 is provided with fixing limit blocks 10. The fixing limit blocks 10 abut against the inner wall of the lifting aluminum tube body 19.

[0031] In this embodiment, when the headrest frame is pulled upwards and raised, the locking plate 16 collides with the rack 11, producing a "click, click, click..." sound, which effectively solves the problem of the current headrest frame having no prompt.

[0032] When the headrest frame descends, you need to press the headrest lifting button 4 first. The lever presses down the pressing end 6, which transmits the transmission aluminum tube 12 to the unlocking push block 18 below the transmission aluminum tube 12. This pushes the locking piece 16 on the lifting aluminum tube end cover 15 to deform, and the locking piece 16 disengages from the rack 11 to unlock, allowing the headrest to descend.

[0033] This invention addresses the current market lack of headrests that can lock headrest height and provide an audible alert when raising the head. It effectively solves the problem of doctors easily adjusting the headrest by pressing the button (designed to allow for individual adjustment) and raising the headrest height when adjusting the patient's head angle. The audible alert indicates when the head moves.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of the equivalents of the claims be included within the present invention, and no reference numerals in the claims should be regarded as limiting the scope of the claims.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dental headrest frame structure with a press-driven locking function, characterized in that, It includes a headrest lifting one-way locking mechanism module (1), a headrest lower joint module (2) and a headrest upper joint module (3), which are arranged from right to left. The headrest upper joint module (3) includes a box body, through which a lifting aluminum tube body (19) is inserted. Inside the lifting aluminum tube body (19) is a transmission aluminum tube (12). The two side walls of the transmission aluminum tube (12) are provided with teeth and are symmetrically connected with racks (11). A locking adjustment block (14) is inserted through the end of the transmission aluminum tube (12) away from the headrest lower joint module (2). One end of the locking adjustment block (14) is connected to a headrest fixing block end cap (13). A headrest lifting button (4) is provided at the end of the transmission aluminum tube (12) located in the headrest lower joint module (2). The lower joint module (2) of the headrest is rotatably connected to the box body, and a connecting plate (8) is provided between the lower joint module (2) of the headrest and the upper joint module (3) of the headrest. The upper joint module (3) of the headrest is rotatably connected to the connecting plate (8).

2. The dental headrest frame structure with press-driven locking function according to claim 1, characterized in that: The headrest lower joint module (2) includes a lower joint fixing block (5), which is adapted to the lifting aluminum tube body (19) and passes through the lifting aluminum tube body (19).

3. The dental headrest frame structure with press-driven locking function according to claim 1, characterized in that: A lifting sliding sleeve (7) is provided between the transmission aluminum tube (12) and the box body, and a pressing end cap (6) is provided between the transmission aluminum tube (12) and the headrest lifting button (4).

4. A dental headrest frame structure with a press-driven locking function according to claim 1, characterized in that: A lifting aluminum tube end cap (15) is provided between the headrest fixing block end cap (13) and the transmission aluminum tube (12), and a locking piece (16) is provided between the locking adjustment block (14) and the transmission aluminum tube (12).

5. A dental headrest frame structure with a press-driven locking function according to claim 4, characterized in that: The locking plate (16) is fitted with an unlocking push block (18), the end of which is inserted into the interior of the transmission aluminum tube (12). A return spring (17) is provided between the outer side of the locking plate (16) and the inner layer of the unlocking push block (18), and the return spring (17) is fitted on the locking plate (16).

6. A dental headrest frame structure with a press-driven locking function according to claim 1, characterized in that: The box body is provided with headrest bracket fixing blocks (9) on both sides, and the transmission aluminum tube (12) is fitted with a fixing limit block (10), and the fixing limit block (10) abuts against the inner wall of the lifting aluminum tube body (19).

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