Dental headrest adjusting support and dental bed

Abstract

The dental headrest adjusting support comprises a backrest connecting seat, a lifting sliding seat and a headrest connecting seat, a lifting guide part is arranged at the upper end of the backrest connecting seat, locking grooves are formed in the left side and the right side of the lifting guide part, and a plurality of height locking grooves are formed in the locking grooves; the back face of the lifting sliding seat is provided with a guide groove matched with the lifting guide part in a guiding mode and locking installation grooves located in the left side and the right side of the guide groove. A height locking assembly is arranged in the locking mounting groove; two headrest hinge parts are arranged at the upper end of the lifting sliding seat and jointly connected with a rotatable hinge rotating shaft, a hinge shaft sleeve is fixedly arranged at the lower end of the headrest connecting seat, and an angle locking assembly is arranged on the hinge rotating shaft. The medical headrest is compact in structure, reasonable in design and easy and convenient to operate, and due to the arrangement of the height locking assembly and the angle locking assembly, medical staff can easily adjust the height and the angle of the headrest, and the stability after adjustment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dental beds, in particular to a dental headrest adjustment bracket and a dental bed. Background Art

[0002] Dental beds, as professional medical equipment, are widely used during oral surgery and the examination and treatment of oral diseases. Their structural design typically includes key components such as the base, backrest, and headrest, aiming to provide convenient operating space for doctors and ensure patient comfort during treatment.

[0003] Referring to the technical solution of CN202123310214.3, the headrest part of this technical solution includes a headrest cover, a headrest cushion, a headrest fixing plate and a lifting and adjusting device. The lifting and adjusting device is installed on the left side wall of the headrest fixing plate. The lifting and adjusting device includes two parallel sliding shafts and sliding blocks installed vertically on the left side wall of the headrest fixing plate. The upper and lower ends of the sliding shaft are provided with sliding stops fixed to the headrest fixing plate. The sliding block is made with two through holes corresponding to the positions of the sliding shafts at corresponding positions, and sliding sleeves are provided in the through holes. The upper end of the backrest body of the dental bed is fixedly connected to the ear plate on the outer wall of the sliding block. The sliding shaft passes through the sliding sleeve so that the sliding block can slide between the two sliding stops, thereby realizing the overall up and down sliding of the headrest part, which is convenient for patients to self-adjust the head height during diagnosis and treatment, and improve the comfort experience during diagnosis and treatment.

[0004] However, although this technical solution has achieved certain results in adjusting the height of the headrest, it still has some shortcomings. For example, this technical solution lacks a locking structure after the headrest part is adjusted in height. In actual use, if the headrest part cannot be stably locked at the required height, it is easy to slip or shift, which not only affects the patient's experience, but may also cause unnecessary interference to the diagnosis and treatment process. In addition, the headrest part in the existing solution can only achieve height adjustment, but cannot adjust its tilt angle. During the oral treatment process, it is impossible to adjust the patient's oral angle to obtain a better field of view or operating space according to the patient's specific situation and the doctor's operating requirements, which to a certain extent affects the treatment efficiency and effect. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a dental headrest adjustment bracket and a dental bed.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A dental headrest adjustment bracket comprises a backrest connecting seat, a lifting slide and a headrest connecting seat, the upper end of the backrest connecting seat is provided with a lifting guide part, the left and right sides of the lifting guide part are provided with locking grooves, and the locking grooves are provided with a plurality of height locking grooves arranged along the sliding direction of the lifting slide; the back side of the lifting slide is provided with a guide groove that cooperates with the lifting guide part and locking mounting grooves located on the left and right sides of the guide groove, and the locking mounting groove is provided with a locking extension hole connected to the guide groove; a height locking assembly is provided in the locking mounting groove, and the height locking assembly includes a height locking pin and a height locking spring for driving the height locking pin pin head to extend from the locking extension hole and engage with one of the height locking slots;

[0008] The upper end of the lifting slide is provided with two headrest hinge parts, and the two headrest hinge parts are commonly connected to a rotatable hinge shaft. The lower end of the headrest connecting seat is fixed with a hinge sleeve that allows it to rotate synchronously with the hinge shaft. The hinge shaft is provided with an angle locking component for locking the hinge shaft so that it cannot rotate and capable of unlocking the hinge shaft after locking.

[0009] In the present invention, a limiting cover plate is installed on the back of the lifting slide and is in sliding contact with the back of the lifting guide part. The height locking component is restricted in the locking installation groove by the limiting cover plate.

[0010] In the present invention, the upper front end of the lifting guide part is provided with a first height limiting protrusion for limiting the lifting slide from continuing to slide upward when the lifting slide slides to the highest point, and the upper back end is provided with a second height limiting protrusion for limiting the limiting cover plate from continuing to slide upward when the lifting slide slides to the highest point.

[0011] In the present invention, there are at least two locking installation grooves located on the left side of the guide groove and at least two locking installation grooves located on the right side of the guide groove, and the locking installation grooves are arranged along the sliding direction of the lifting slide.

[0012] In the present invention, the articulated sleeve is provided with a synchronous drive groove extending along its axial direction, and the central protrusion of the articulated shaft is provided with a synchronous drive convex portion that matches in the synchronous drive groove so that the articulated sleeve and the articulated shaft rotate synchronously, and the cross-sectional shapes of the synchronous drive groove and the synchronous drive convex portion are both polygonal.

[0013] In the present invention, the left and right end faces of the hinge sleeve respectively slide in contact with the inner sides of the two headrest hinge parts; the axial length of the synchronous drive groove is greater than the axial length of the synchronous drive protrusion, so that the hinge shaft can be moved left and right.

[0014] In the present invention, the angle locking assembly includes an angle locking spring and two movable gear plates. The headrest hinge part is provided with a hinge shaft hole for the hinge shaft to pass through, and one end of the hinge shaft hole is provided with an angle locking groove. Each angle locking groove is provided with a movable gear plate, and the movable gear plate is fixedly sleeved on the hinge shaft and can move left and right with the hinge shaft. The angle locking groove is provided with a locking gear plate for engaging with the movable gear plate to lock the hinge shaft; one end of the synchronous drive groove is provided with a spring accommodating groove, and the angle locking spring is provided in the spring accommodating groove and elastically pushes the hinge shaft to link the two movable gear plates to move in the direction of the locking gear plate.

[0015] In the present invention, an operating head is provided at both the left and right ends of the hinged shaft for allowing medical personnel to drive the hinged shaft to move left and right.

[0016] In the present invention, both left and right ends of the articulated shaft sleeve are provided with reinforced fixing seats, the two reinforced fixing seats are fixedly connected to the two headrest hinge parts, and the articulated shaft sleeve can rotate relative to the reinforced fixing seats.

[0017] A dental bed, characterized in that it comprises a dental bed body and a dental headrest adjustment bracket according to any one of claims 1 to 3, wherein the backrest connecting seat of the dental headrest adjustment bracket is installed at the upper end of the backrest of the dental bed body, and the headrest main body is installed on the headrest connecting seat.

[0018] Beneficial effects of the present invention: The present invention provides a height locking assembly on the lifting slide. Through the cooperation of the height locking pin and the height locking spring, the headrest body can be stably locked in the position after being adjusted to the required height, effectively avoiding the headrest part from slipping or shifting due to the lack of a locking structure during use, thereby greatly improving the patient's user experience and ensuring the smooth progress of the diagnosis and treatment process. In addition, a headrest hinge part and a rotatable hinge shaft are provided on the lifting slide, as well as an angle locking assembly that cooperates therewith, so that the headrest connecting seat can swing to adjust the angle of the headrest body as needed, meeting the need to adjust the patient's oral angle to obtain a better field of view or operating space according to the patient's specific situation and the doctor's operating requirements during oral treatment, thereby improving the treatment efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a three-dimensional diagram of a dental bed;

[0021] Figure 2 A perspective view of the dental headrest adjustment bracket after installing the headrest body;

[0022] Figure 3 A perspective view of an adjustment bracket for a dental headrest;

[0023] Figure 4 This is an exploded view of some parts of the dental headrest adjustment bracket;

[0024] Figure 5 This is a schematic diagram of the installation of the height locking component;

[0025] Figure 6 This is a schematic diagram of the installation of the angle locking component. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), then the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] Reference Figure 1-6The support frame 12 is provided with a lifting guide portion 11 on the upper end of the backrest connecting seat 1, and a locking groove 12 is provided on the left and right sides of the lifting guide portion 11. The locking groove 12 is provided with a plurality of height locking grooves 121 arranged along the sliding direction of the lifting slide 2; the back of the lifting slide 2 is provided with a guide groove 21 that cooperates with the lifting guide portion 11 and a locking mounting groove 22 located on the left and right sides of the guide groove 21, and the locking mounting groove 22 is provided with a locking extension hole 23 connected to the guide groove 21; a height locking component is provided in the locking mounting groove 22, and the height locking component includes a height locking pin 4 and a height locking spring 5 for driving the pin head of the height locking pin 4 to extend from the locking extension hole 23 and engage with one of the height locking grooves 121. After the pin head of the height locking pin 4 is inserted into the height locking groove 121, the lifting slide 2 is difficult to move up and down without external force, thereby ensuring the stability after height adjustment.

[0030] Furthermore, a limiting cover plate 20 is installed on the back of the lifting slide 2, which is in sliding contact with the back of the lifting guide part 11. The height locking assembly is restricted in the locking installation groove 22 by the limiting cover plate 20, thereby realizing the installation of the lifting guide part 11 and the height locking assembly, ensuring that the lifting guide part 11 and the height locking assembly will not detach from the lifting slide 2 at will, further enhancing the stability and safety of the entire adjustment bracket.

[0031] Furthermore, the upper end of the lifting slide 2 is provided with two headrest hinge parts 24, and the two headrest hinge parts 24 are commonly connected to a rotatable hinge shaft 6. The lower end of the headrest connecting seat 3 is fixedly provided with a hinge sleeve 31 so that it rotates synchronously with the hinge shaft 6. The hinge shaft 6 is provided with an angle locking component for locking the hinge shaft 6 so that it cannot rotate and unlocking the hinge shaft 6 after locking; after the angle locking component locks the hinge shaft 6 so that it cannot rotate, the headrest connecting seat 3 cannot swing to adjust the angle of the headrest main body 200; after the angle locking component unlocks the hinge shaft 6, the hinge shaft 6 can rotate, so that the headrest connecting seat 3 can swing to adjust the angle of the headrest main body 200 with the hinge shaft 6 as the rotation center, meeting medical use requirements.

[0032] The present invention provides a height locking assembly on the lifting slide 2. Through the cooperation of the height locking pin 4 and the height locking spring 5, the headrest body 200 can be stably locked in the position after being adjusted to the desired height, effectively avoiding the headrest part from slipping or shifting due to the lack of a locking structure during use, thereby greatly improving the patient's user experience and ensuring the smooth progress of the diagnosis and treatment process. In addition, a headrest hinge 24 and a rotatable hinge shaft 6 are provided on the lifting slide 2, as well as an angle locking assembly that cooperates therewith, so that the headrest connecting seat 3 can swing and adjust the angle of the headrest body 200 as needed, meeting the need to adjust the patient's oral angle to obtain a better field of view or operating space according to the patient's specific situation and the doctor's operating requirements during oral treatment, thereby improving the treatment efficiency and effect.

[0033] As a preferred embodiment, in order to facilitate the lifting slide 2 to disengage from the lifting guide part 11 upward, the upper end of the front side of the lifting guide part 11 is provided with a first height limiting protrusion 111 for limiting the lifting slide 2 from continuing to slide upward when the lifting slide 2 slides to the highest point, and the upper end of the back side is provided with a second height limiting protrusion 112 for limiting the limiting cover plate 20 from continuing to slide upward when the lifting slide 2 slides to the highest point, thereby utilizing the first height limiting protrusion 111 and the second height limiting protrusion 112 for upper positioning.

[0034] As a preferred embodiment, there are at least two locking installation grooves 22 located on the left side of the guide groove 21 and at least two locking installation grooves 22 located on the right side of the guide groove 21 and they are arranged along the sliding direction of the lifting slide 2, so that multiple height locking components can be installed for height locking, further improving the quality of the locking height.

[0035] As a preferred embodiment, the articulated shaft sleeve 31 is provided with a synchronous drive groove 311 extending along its axial direction. The central protrusion of the articulated shaft 6 is provided with a synchronous drive protrusion 61 that matches the synchronous drive groove 311, allowing the articulated shaft sleeve 31 and the articulated shaft 6 to rotate synchronously. The cross-sectional shapes of the synchronous drive groove 311 and the synchronous drive protrusion 61 are both polygonal, thereby allowing the articulated shaft 6 and the articulated shaft sleeve 31 to rotate synchronously. Furthermore, the axial length of the synchronous drive groove 311 is greater than the axial length of the synchronous drive protrusion 61, allowing the articulated shaft 6 to be movable left and right.

[0036] As a preferred embodiment, the angle locking assembly includes an angle locking spring 7 and two movable toothed discs 8. The headrest hinge part 24 is provided with a hinge shaft hole 241 for the hinge shaft 6 to pass through. One end of the hinge shaft hole 241 is provided with an angle locking groove 242. Each angle locking groove 242 is provided with a movable toothed disc 8. The movable toothed disc 8 is fixedly mounted on the hinge shaft 6 and can move left and right with the hinge shaft 6. The angle locking groove 242 is provided with a locking toothed disc 9 for engaging with the movable toothed disc 8 to lock the hinge shaft 6; one end of the synchronous drive groove 311 is provided with a spring accommodating groove 312, and the angle locking spring 7 is arranged in the spring accommodating groove 312 and elastically pushes the hinge shaft 6 to link the two movable toothed discs 8 to move toward the locking toothed disc 9.

[0037] Furthermore, one end of the angle locking spring 7 abuts against the end face of the spring receiving groove 312, and the other end abuts against the axial end face of one of the movable toothed discs 8, thereby pushing the hinge shaft 6 to move in the direction of the locking toothed disc 9. In this embodiment, the spring receiving groove 312 is located at the right end of the hinge sleeve 31, that is, the other end of the angle locking spring 7 abuts against the right side of the movable toothed disc 8. When locking, the angle locking spring 7 pushes the movable toothed disc 8 to the left, so that the movable toothed disc 8 engages with the locking toothed disc 9 to lock the hinge shaft 6; when unlocking, the hinge shaft 6 is pushed to the right, so that the movable toothed disc 8 separates from the locking toothed disc 9, thereby realizing the rotation of the hinge shaft 6 and adjusting the angle of the headrest body 200.

[0038] As a preferred embodiment, in order to facilitate medical personnel to operate the angle locking assembly, an operating head 62 is provided at both ends of the hinge shaft 6 for allowing medical personnel to move the hinge shaft 6 left and right.

[0039] As a preferred embodiment, the left and right end surfaces of the hinge sleeve 31 slide in contact with the inner sides of the two headrest hinges 24, thereby limiting the left and right movement of the hinge sleeve 31. Reinforced mounting brackets 10 are mounted on both ends of the hinge sleeve 31. The two reinforcing mounting brackets 10 are fixedly connected to the two headrest hinges 24. The hinge sleeve 31 can rotate relative to the reinforcing mounting brackets 10, further enhancing the rotational stability of the hinge sleeve 31.

[0040] This embodiment also discloses a dental bed, including a dental bed body 100 and the above-mentioned dental headrest adjustment bracket. The backrest connecting seat 1 of the dental headrest adjustment bracket is installed on the upper end of the backrest of the dental bed body 100, thereby realizing the installation of the dental headrest adjustment bracket and the dental bed body 100. The headrest connecting seat 3 is installed with a headrest body 200, thereby realizing the installation of the headrest body 200, so that the headrest body 200 can be adjusted in height and tilt angle using the dental headrest adjustment bracket to meet medical use requirements.

[0041] The above description is only a preferred embodiment of the present invention. Any technical solution that achieves the purpose of the present invention by substantially the same means shall fall within the scope of protection of the present invention.

Claims

1. A dental headrest adjustment bracket, comprising a backrest connecting seat (1), a lifting slide (2) and a headrest connecting seat (3), characterized in that: The upper end of the backrest connecting seat (1) is provided with a lifting guide part (11), and the left and right sides of the lifting guide part (11) are provided with locking grooves (12), and the locking grooves (12) are provided with a plurality of height locking grooves (121) arranged along the sliding direction of the lifting slide (2); the back of the lifting slide (2) is provided with a guide groove (21) that cooperates with the lifting guide part (11) and a locking installation groove (22) located on the left and right sides of the guide groove (21), and the locking installation groove (22) is provided with a locking extension hole (23) connected to the guide groove (21); the locking installation groove (22) is provided with a height locking component, and the height locking component includes a height locking pin (4) and a height locking spring (5) for driving the pin head of the height locking pin (4) to extend from the locking extension hole (23) and cooperate with one of the height locking slots (121); The upper end of the lifting slide (2) is provided with two headrest hinge parts (24), and the two headrest hinge parts (24) are commonly connected to a rotatable hinge shaft (6). The lower end of the headrest connecting seat (3) is fixedly provided with a hinge sleeve (31) that rotates synchronously with the hinge shaft (6). The hinge shaft (6) is provided with an angle locking component for locking the hinge shaft (6) so that it cannot rotate and can unlock the hinge shaft (6) after locking.

2. The dental headrest adjustment bracket according to claim 1, characterized in that: A limiting cover plate (20) is installed on the back of the lifting slide (2) and is in sliding contact with the back of the lifting guide portion (11). The height locking component is restricted in the locking installation groove (22) by the limiting cover plate (20).

3. The dental headrest adjustment bracket according to claim 2, characterized in that: The upper front end of the lifting guide portion (11) is provided with a first height limiting protrusion (111) for limiting the lifting slide (2) from sliding further upward when the lifting slide (2) slides to the highest point, and the upper back end is provided with a second height limiting protrusion (112) for limiting the limiting cover plate (20) from sliding further upward when the lifting slide (2) slides to the highest point.

4. The dental headrest adjustment bracket according to claim 1, characterized in that: There are at least two locking installation grooves (22) located on the left side of the guide groove (21) and at least two locking installation grooves (22) located on the right side of the guide groove (21), and the two locking installation grooves (22) are arranged along the sliding direction of the lifting slide (2).

5. The dental headrest adjustment bracket according to claim 1, characterized in that: The hinge sleeve (31) is provided with a synchronous drive groove (311) extending along its axial direction, and the central protrusion of the hinge shaft (6) is provided with a synchronous drive convex portion (61) that matches in the synchronous drive groove (311) so that the hinge sleeve (31) and the hinge shaft (6) rotate synchronously, and the cross-sectional shapes of the synchronous drive groove (311) and the synchronous drive convex portion (61) are both polygonal.

6. The dental headrest adjustment bracket according to claim 5, characterized in that: The left and right end surfaces of the hinge sleeve (31) are in sliding contact with the inner sides of the two headrest hinge parts (24), respectively; the axial length of the synchronous drive groove (311) is greater than the axial length of the synchronous drive protrusion (61), so that the hinge shaft (6) can be moved left and right.

7. The dental headrest adjustment bracket according to claim 6, characterized in that: The angle locking assembly comprises an angle locking spring (7) and two movable toothed discs (8); the headrest hinge portion (24) is provided with a hinge shaft hole (241) for the hinge shaft (6) to pass through; one end of the hinge shaft hole (241) is provided with an angle locking groove (242); one movable toothed disc (8) is provided in each angle locking groove (242); the movable toothed disc (8) is fixedly sleeved on the hinge shaft (6) and can move left and right with the hinge shaft (6); the angle locking groove (242) is provided with a locking toothed disc (9) for engaging with the movable toothed disc (8) to lock the hinge shaft (6); one end of the synchronous drive groove (311) is provided with a spring receiving groove (312); the angle locking spring (7) is provided in the spring receiving groove (312) and elastically pushes the hinge shaft (6) to link the two movable toothed discs (8) to move toward the locking toothed disc (9).

8. The dental headrest adjustment bracket according to claim 7, characterized in that: An operating head (62) is provided at both the left and right ends of the hinged shaft (6) for allowing medical personnel to drive the hinged shaft (6) to move left and right.

9. The dental headrest adjustment bracket according to claim 1, characterized in that: The left and right ends of the hinged shaft sleeve (31) are both provided with a reinforced fixing seat (10), the two reinforced fixing seats (10) are fixedly connected to the two headrest hinged parts (24), and the hinged shaft sleeve (31) can rotate relative to the reinforced fixing seat (10).

10. A dental bed, characterized in that: The invention comprises a dental bed body (100) and a dental headrest adjustment bracket according to any one of claims 1 to 9, wherein the backrest connecting seat (1) of the dental headrest adjustment bracket is installed on the upper end of the backrest of the dental bed body (100), and the headrest main body (200) is installed on the headrest connecting seat (3).

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