CN211409981U - Spring separation and reunion formula double joint diversion headrest - Google Patents
Spring separation and reunion formula double joint diversion headrest Download PDFInfo
- Publication number
- CN211409981U CN211409981U CN201922128968.3U CN201922128968U CN211409981U CN 211409981 U CN211409981 U CN 211409981U CN 201922128968 U CN201922128968 U CN 201922128968U CN 211409981 U CN211409981 U CN 211409981U
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Abstract
The utility model belongs to the technical field of the technique of dental chair and specifically relates to a spring separation and reunion formula double joint diversion headrest, the loach carrying platform comprises a supporting bar, the top of bracing piece is equipped with the link, link rotatable coupling has the mounting box, one side that the bracing piece was kept away from to the mounting box is rotated and is connected with and bears the seat, bear and install the headrest subassembly on the seat, be equipped with first round pin axle in the mounting box, the second round pin axle, the third round pin axle, a plurality of first clamping pieces and a plurality of second clamping pieces, first round pin axle passes in proper order and bears seat and first clamping piece and arrange the mounting box internal fixation in, the one end of second round pin axle articulates in pressing down the subassembly, the other end of second round pin axle passes in proper order the overhang of first clamping piece and second clamping piece and articulates in reset assembly, press down the both sides that subassembly and reset assembly are located the mounting. Compared with the prior art, adjust the headrest subassembly through pressing the subassembly and the subassembly that resets, convenient operation is favorable to optimizing and uses experience.
Description
Technical Field
The utility model belongs to the technical field of the technique of dental chair and specifically relates to a spring separation and reunion formula double joint diversion headrest.
Background
The dental chair is used for oral surgery and examination and treatment of oral diseases, and comprises a base, a cushion, a chair back and a headrest. Due to the different statures of each individual, the headrest needs to be adjusted frequently in order to make the patient more comfortable when receiving treatment.
Traditional armchair regulation headrest adopts spiral regulation armchair headrest double joint usually, needs the manual head pillow that loosens of screwing to in the regulation of headrest, the manual headrest of screwing realizes the fixed of headrest, and this kind of mode of adjusting the head pillow wastes time and energy, and is comparatively loaded down with trivial details.
Disclosure of Invention
The utility model aims at providing a spring separation and reunion formula double joint diversion headrest, it has solved spiral regulation dental chair headrest double joint and has taken trouble and laboursome, comparatively loaded down with trivial details problem.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a spring separation and reunion formula double joint diversion headrest, includes the bracing piece, the top of bracing piece is equipped with the link, link rotatable coupling has the mounting box, one side that the bracing piece was kept away from to the mounting box is rotated and is connected with and bears the seat, bear and install the headrest subassembly on the seat, be equipped with first round pin axle, second round pin axle, third round pin axle, a plurality of first clamping piece and a plurality of second clamping piece in the mounting box, first round pin axle passes in proper order and bears seat and first clamping piece and arrange the mounting box internal fixation in, the one end of second round pin axle articulates in pressing down the subassembly, the other end of second round pin axle passes in proper order the overhang of first clamping piece and second clamping piece and articulates in reset assembly, it is located the both sides of mounting box respectively to press down subassembly and reset assembly, the third round pin axle passes the second clamping piece and is fixed with the link.
By adopting the technical scheme, the connecting frame is rotatably connected with the mounting box so as to rotate the mounting box, realize the adjustment of the mounting box and further adjust the headrest assembly; one end of a second pin shaft is connected with the pressing assembly in a low mode, the other end of the second pin shaft sequentially penetrates through protruding ends of the first clamping piece and the second clamping piece to be connected with the resetting assembly in a low mode, a third pin shaft penetrates through the second clamping piece to be fixed with the connecting frame, the second pin shaft is driven to move towards the direction of the resetting assembly through the pressing assembly, so that the angle formed by the first clamping piece and the second clamping piece can be adjusted conveniently, and the bearing seat can be adjusted; the first pin shaft sequentially penetrates through the bearing seat and the first clamping piece to be fixed in the mounting box, so that the bearing seat is hinged to the mounting box, the bearing seat is convenient to adjust, and the headrest assembly is adjusted due to the fact that the headrest assembly is installed on the bearing seat. The utility model has scientific and reasonable arrangement and simple structure, and compared with the prior art, the angle formed by the mounting box and the connecting frame can be adjusted by hinging the connecting frame and the mounting; the pressing component drives the second pin shaft to move towards the direction of the resetting component, and the pressure of the second pin shaft on the first clamping piece and the second clamping piece is released, so that the angle formed by the first clamping piece and the second clamping piece can be conveniently adjusted; because the headrest subassembly is installed on bearing the weight of the seat, realize adjusting the headrest subassembly, convenient operation is favorable to optimizing and uses experience.
The utility model discloses further set up to: the headrest assembly comprises a headrest cushion and a bearing plate, the bearing plate is mounted on the bearing seat, and the headrest cushion is fixed on one surface of the bearing plate, which deviates from the bearing seat.
Through adopting above-mentioned technical scheme, the headrest pad passes through the loading board to be installed on bearing the weight of the seat to reduce the damage of headrest pad.
The utility model discloses further set up to: the press assembly comprises a key and a fixing pin, a press groove is formed in one side of the mounting box, the key and the fixing pin are arranged in the press groove, one end of the fixing pin is fixed with the mounting box, and the other end of the fixing pin can rotate to penetrate through the protruding end of the key and is fixed with the mounting box.
Through adopting above-mentioned technical scheme, the fixed pin is rotatable to pass the button fixed with the mounting box for the button is articulated with the mounting box, so that press the button.
The utility model discloses further set up to: the button is equipped with the screw hole, press the subassembly still including pressing the ball, press the ball and arrange threaded hole in, just press the ball and offset with second round pin axle, threaded hole is equipped with spacing bolt, spacing bolt offsets with pressing the ball.
Through adopting above-mentioned technical scheme, press ball and second round pin axle and offset, and press ball and spacing bolt and offset, press the button for the button will press the ball through spacing bolt and press to second round pin axle, make second round pin axle to keep away from the button direction motion, so that adjust the angle that first preforming and second preforming formed.
The utility model discloses further set up to: the reset assembly comprises a pressure adjusting nut and a reset spring, a through hole is formed in one end of the mounting box, the pressure adjusting nut is arranged in the through hole and connected with the through hole in a threaded mode, one end of the reset spring abuts against the pressure adjusting nut, and the other end of the reset spring abuts against the second pin shaft.
Through adopting above-mentioned technical scheme, pressure adjusting nut arranges in the through-hole and with through-hole threaded connection for pressure adjusting nut can provide the support for reset spring, makes reset spring can promote the second round pin axle and reset, thereby locks first clamping piece and second clamping piece.
The utility model discloses further set up to: and a pressing plate is arranged at one end of the second pin shaft, one surface of the pressing plate is abutted against the reset spring, and the other surface of the pressing plate is abutted against the first clamping piece or the second clamping piece.
By adopting the technical scheme, the contact area between the second pin shaft and the reset spring is increased by the pressure plate, so that the reset spring can more easily push the second pin shaft to reset; the other side of the pressing plate is abutted against the first clamping piece or the second clamping piece, so that the pressing plate can push the first clamping piece or the second clamping piece to move.
The utility model discloses further set up to: and a lug is arranged at the end part of one end of the second pin shaft and extends into the return spring.
Through adopting above-mentioned technical scheme, when reset spring was compressed, the lug offseted with pressure adjusting nut to prevent that reset spring from being crushed.
The utility model discloses further set up to: the first clamping piece and the second clamping piece are arranged at intervals, and gaps exist between the first clamping piece and the mounting box and the second clamping piece.
By adopting the technical scheme, the first clamping piece and the second clamping piece are arranged at intervals, so that the first clamping piece and the second clamping piece are convenient to move and are more compact; the first clamping piece and the second clamping piece are in clearance with the mounting box, so that the first clamping piece and the second clamping piece can move in the mounting box conveniently.
The utility model discloses further set up to: and a gasket is arranged between the first clamping piece and the second clamping piece.
Through adopting above-mentioned technical scheme, the packing ring separates first clamping piece and second clamping piece to reduce the friction of first clamping piece and second clamping piece, so that rotate first clamping piece and second clamping piece, realize adjusting the headrest and fill up.
The utility model discloses further set up to: and a fixing plate is arranged in the mounting box and is respectively abutted against the first clamping piece and the second clamping piece.
Through adopting above-mentioned technical scheme, the fixed plate offsets with first clamping piece and second clamping piece respectively to restrict first clamping piece and second clamping piece motion range, collide with the lid with restriction first clamping piece and second clamping piece.
To sum up, the utility model discloses a beneficial technological effect does:
1. the utility model has scientific and reasonable arrangement and simple structure, and compared with the prior art, the angle formed by the mounting box and the connecting frame can be adjusted by hinging the connecting frame and the mounting; the pressing component drives the second pin shaft to move towards the direction of the resetting component, and the pressure of the second pin shaft on the first clamping piece and the second clamping piece is released, so that the angle formed by the first clamping piece and the second clamping piece can be conveniently adjusted; the headrest assembly is arranged on the bearing seat, so that the headrest assembly is adjusted, the operation is convenient, and the use experience is optimized;
2. the pressing assembly comprises a key and a fixing pin, a pressing groove is formed in one side of the mounting box, the key and the fixing pin are arranged in the pressing groove, one end of the fixing pin is fixed with the mounting box, the other end of the fixing pin can rotatably penetrate through a protruding end of the key to be fixed with the mounting box, the fixing pin can rotatably penetrate through the key to be fixed with the mounting box, so that the key is hinged with the mounting box, and the key can be pressed conveniently;
3. the pressure adjusting nut is arranged in the through hole and is in threaded connection with the through hole, so that the pressure adjusting nut can support the reset spring, the reset spring can push the second pin shaft to reset, and the first clamping piece and the second clamping piece are locked.
Drawings
Fig. 1 is an exploded view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
fig. 3 is a cross-sectional view of the present invention;
fig. 4 is an exploded view of the present invention;
fig. 5 is an enlarged view of a portion a in fig. 4.
In the figure, 1, a support rod; 11. a connecting frame; 2. mounting a box; 21. pressing the groove; 22. a through hole; 23. a box cover; 3. a bearing seat; 4. a headrest assembly; 41. a headrest pad; 42. a carrier plate; 5. a first pin shaft; 51. a second pin shaft; 511. pressing a plate; 512. a bump; 52. a third pin shaft; 6. a first clip piece; 61. a second clip; 62. a gasket; 7. a pressing assembly; 71. pressing a key; 72. a fixing pin; 73. pressing the ball; 8. a reset assembly; 81. a pressure adjusting nut; 82. a return spring; 9. a threaded hole; 91. a limit bolt; 10. and (7) fixing the plate.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the spring clutch type double-joint turning headrest disclosed by the utility model comprises a support rod 1, wherein a connecting frame 11 is arranged at the top of the support rod 1, and the connecting frame 11 is rotatably connected with a mounting box 2; in this embodiment, be equipped with the hole that is used for the installation on link 11, downthehole connecting axle that is equipped with, the both ends card of connecting axle is gone into in the mounting box 2 for mounting box 2 is articulated with link 11, so that mounting box 2 and link 11 rotation each other, mounting box 2 is equipped with lid 23, and lid 23 lid closes mounting box 2, makes mounting box 2 more pleasing to the eye and safety.
Referring to fig. 1 and 4, a bearing seat 3 is rotatably connected to one side of the mounting box 2 away from the support rod 1, and a headrest assembly 4 is mounted on the bearing seat 3; in this embodiment, the headrest assembly 4 includes a headrest pad 41 and a bearing plate 42, and the bearing plate 42 is installed on the bearing seat 3, so that the bearing plate 42 moves synchronously on the bearing seat 3, and the headrest pad 41 is fixed on the surface of the bearing plate 42 deviating from the bearing seat 3, thereby reducing the damage of the headrest pad 41 during installation.
Referring to fig. 2, 3, 4 and 5, a first pin 5, a second pin 51, a third pin 52, a plurality of first clamping pieces 6 and a plurality of second clamping pieces 61 are arranged in the mounting box 2, the first pin 5 sequentially penetrates through the bearing seat 3 and the first clamping pieces 6 and is fixed in the mounting box 2, one end of the second pin 51 is connected to the pressing component 7 in a low mode, the other end of the second pin 51 sequentially penetrates through protruding ends of the first clamping pieces 6 and the second clamping pieces 61 and is connected to the reset component 8 in a low mode, the pressing component 7 and the reset component 8 are respectively located on two sides of the mounting box 2, the third pin 52 penetrates through the second clamping pieces 61 and is fixed with the connecting frame 11, and the connecting frame 11 is arranged in the mounting box 2;
referring to fig. 2 and 3, in the present embodiment, the pressing assembly 7 includes a pressing ball 73, a button 71 and a fixing pin 72, a pressing groove 21 is formed in one side of the mounting box 2, the button 71 and the fixing pin 72 are disposed in the pressing groove 21, one end of the fixing pin 72 is fixed to the mounting box 2, and the other end of the fixing pin 72 rotatably penetrates through a protruding end of the button 71 to be fixed to the mounting box 2, so that the button 71 is hinged to the mounting box 2; the key 71 is provided with a threaded hole 9, the threaded hole 9 is arranged corresponding to the second pin shaft 51, the pressing ball 73 is arranged in the threaded hole 9, the pressing ball 73 protrudes out of the threaded hole 9 and abuts against the second pin shaft 51, a limiting bolt 91 is arranged in the threaded hole 9, and the limiting bolt 91 abuts against the pressing ball 73 so as to limit the pressing ball 73 from falling out of the threaded hole 9; the key 71 is pressed, so that the key 71 moves towards the bottom of the pressing groove 21, the key 71 drives the pressing ball 73 to press the second pin shaft 51, and the second pin shaft 51 moves towards the direction far away from the key 71, so as to adjust the angle formed by the first clamping piece 6 and the second clamping piece 61, the angle formed by the first clamping piece 6 and the bearing seat 3, and the angle formed by the second clamping piece 61 and the connecting frame 11;
referring to fig. 4 and 5, the reset assembly 8 includes a pressure adjusting nut 81 and a reset spring 82, one end of the mounting box 2 is provided with a through hole 22, the pressure adjusting nut 81 is disposed in the through hole 22, the pressure adjusting nut 81 is in threaded connection with the through hole 22, one end of the reset spring 82 abuts against the pressure adjusting nut 81, the other end of the reset spring 82 abuts against the second pin shaft 51, and a gap exists between the second pin shaft 51 and the pressure adjusting nut 81; when the return spring 82 is pressed by the second pin 51, the return spring 82 always has a force away from the pressure-adjusting nut 81, so that the return spring 82 always has a tendency to move away from the pressure-adjusting nut 81, so as to drive the second pin 51 to return;
referring to fig. 2 and 3, a pressing plate 511 is disposed at one end of the second pin 51, one surface of the pressing plate 511 abuts against the return spring 82, the cross section of the pressing plate 511 is larger than that of the second pin 51, and the pressing plate 511 plays a role in increasing the contact area between the second pin 51 and the return spring 82; the other side of the pressing plate 511 is against the first clamping piece 6 or the second clamping piece 61, so that the pressing plate 511 can drive the first clamping piece 6 and the second clamping piece 61 to reset. A lug 512 is arranged at the end part of one end of the second pin shaft 51, the lug 512 extends into the return spring 82, and a gap exists between the lug 512 and the pressure adjusting nut 81; when the second pin 51 moves toward the pressure adjustment nut 81, the pressure plate 511 presses the return spring 82, and the protrusion 512 abuts against the pressure adjustment nut 81, thereby limiting the return spring 82 from being crushed. The first clamping piece 6 and the second clamping piece 61 are arranged at intervals, so that the first clamping piece 6 and the second clamping piece 61 are more regular, and gaps exist between the first clamping piece 6 and the mounting box 2 and between the first clamping piece 61 and the mounting box 2, so that the first clamping piece 6 and the second clamping piece 61 can move in the mounting box 2;
referring to fig. 3 and 4, a washer 62 is disposed between the first jaw 6 and the second jaw 61, and the washer 62 spaces the first jaw 6 from the second jaw 61, thereby reducing friction between the first jaw 6 and the second jaw 61 to rotate the first jaw 6 and the second jaw 61.
Referring to fig. 1 and 4, a fixing plate 10 is installed in the mounting box 2, and the fixing plate 10 abuts against the first clamping piece 6 and the second clamping piece 61 respectively to limit the movement range of the first clamping piece 6 and the second clamping piece 61.
The implementation principle of the embodiment is as follows: the connecting frame 11 is rotatably connected with the mounting box 2 so as to rotate the mounting box 2 to adjust the mounting box 2 and thus the headrest assembly 4; one end of the second pin shaft 51 is connected with the pressing component 7 in a low mode, the other end of the second pin shaft 51 sequentially penetrates through the protruding ends of the first clamping piece 6 and the second clamping piece 61 and is connected with the resetting component 8 in a low mode, the third pin shaft 52 penetrates through the second clamping piece 61 and is fixed with the connecting frame 11, and the pressing component 7 drives the second pin shaft 51 to move towards the resetting component 8 so as to adjust the angle formed by the first clamping piece 6 and the second clamping piece 61 and further adjust the bearing seat 3; first round pin axle 5 passes in proper order and bears seat 3 and first clamping piece 6 and arranges the mounting box 2 internal fixation in for bear seat 3 and mounting box 2 articulated, so that adjust and bear seat 3, owing to bear and install headrest subassembly 4 on the seat 3, realize adjusting headrest subassembly 4. The utility model has scientific and reasonable arrangement and simple structure, compared with the prior art, the angle formed by the mounting box 2 and the connecting frame 11 is adjusted by hinging the connecting frame 11 with the mounting; the pressing component 7 drives the second pin shaft 51 to move towards the direction of the resetting component 8, the pressure of the second pin shaft 51 on the first clamping piece 6 and the second clamping piece 61 is released, so that the angle formed by the first clamping piece 6 and the second clamping piece 61 can be conveniently adjusted, and the bearing seat 3 is adjusted because the bearing seat 3 is hinged with the mounting box 2; because headrest subassembly 4 installs on bearing seat 3, realize adjusting headrest subassembly 4, convenient operation is favorable to optimizing and uses experience.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides a spring separation and reunion formula double joint diversion headrest which characterized in that: comprises a supporting rod (1), wherein a connecting frame (11) is arranged at the top of the supporting rod (1), the connecting frame (11) is rotatably connected with a mounting box (2), one side of the mounting box (2), which is far away from the supporting rod (1), is rotatably connected with a bearing seat (3), a headrest assembly (4) is installed on the bearing seat (3), a first pin shaft (5), a second pin shaft (51), a third pin shaft (52), a plurality of first clamping pieces (6) and a plurality of second clamping pieces (61) are arranged in the mounting box (2), the first pin shaft (5) sequentially penetrates through the bearing seat (3) and the first clamping pieces (6) and is arranged in the mounting box (2) for fixation, one end of the second pin shaft (51) is connected with a pressing assembly (7) in a low mode, the other end of the second pin shaft (51) sequentially penetrates through protruding ends of the first clamping pieces (6) and the second clamping pieces (61) and is connected with a resetting, the pressing component (7) and the resetting component (8) are respectively located on two sides of the mounting box (2), the third pin shaft (52) penetrates through the second clamping piece (61) to be fixed with the connecting frame (11), and the connecting frame (11) is arranged in the mounting box (2).
2. The spring clutch type double-joint turning headrest according to claim 1, characterized in that: the headrest assembly (4) comprises a headrest cushion (41) and a bearing plate (42), the bearing plate (42) is installed on the bearing seat (3), and the headrest cushion (41) is fixed on one surface of the bearing plate (42) deviating from the bearing seat (3).
3. The spring clutch type double-joint turning headrest according to claim 1, characterized in that: the pressing assembly (7) comprises a key (71) and a fixing pin (72), a pressing groove (21) is formed in one side of the mounting box (2), the key (71) and the fixing pin (72) are arranged in the pressing groove (21), one end of the fixing pin (72) is fixed to the mounting box (2), and the other end of the fixing pin (72) can rotatably penetrate through a protruding end of the key (71) to be fixed to the mounting box (2).
4. The spring clutch type double-joint turning headrest according to claim 3, characterized in that: the button (71) is equipped with screw hole (9), press subassembly (7) still include and press ball (73), press ball (73) and arrange screw hole (9) in, just press ball (73) and offset with second round pin axle (51), be equipped with spacing bolt (91) in screw hole (9), spacing bolt (91) offset with pressing ball (73).
5. The spring clutch type double-joint turning headrest according to claim 1, characterized in that: reset assembly (8) include pressure adjusting nut (81) and reset spring (82), through-hole (22) have been seted up to the one end of mounting box (2), through-hole (22) internal thread connection is arranged in pressure adjusting nut (81), the one end and the pressure adjusting nut (81) counterbalance of reset spring (82), the other end and the second round pin axle (51) counterbalance of reset spring (82).
6. The spring clutch type double-joint turning headrest according to claim 5, characterized in that: one end of the second pin shaft (51) is provided with a pressing plate (511), one surface of the pressing plate (511) is abutted against the return spring (82), and the other surface of the pressing plate (511) is abutted against the first clamping piece (6) or the second clamping piece (61).
7. The spring clutch type double-joint turning headrest according to claim 6, characterized in that: the end part of one end of the second pin shaft (51) is provided with a lug (512), and the lug (512) extends into the return spring (82).
8. The spring clutch type double-joint turning headrest according to claim 1, characterized in that: first clamping piece (6) and second clamping piece (61) interval set up, there is the clearance first clamping piece (6) and second clamping piece (61) all with mounting box (2).
9. The spring clutch type double-joint turning headrest according to claim 1, characterized in that: a gasket (62) is arranged between the first clamping piece (6) and the second clamping piece (61).
10. The spring clutch type double-joint turning headrest according to claim 1, characterized in that: install fixed plate (10) in mounting box (2), fixed plate (10) offset with first clamping piece (6) and second clamping piece (61) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922128968.3U CN211409981U (en) | 2019-11-29 | 2019-11-29 | Spring separation and reunion formula double joint diversion headrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922128968.3U CN211409981U (en) | 2019-11-29 | 2019-11-29 | Spring separation and reunion formula double joint diversion headrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211409981U true CN211409981U (en) | 2020-09-04 |
Family
ID=72284921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922128968.3U Active CN211409981U (en) | 2019-11-29 | 2019-11-29 | Spring separation and reunion formula double joint diversion headrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211409981U (en) |
-
2019
- 2019-11-29 CN CN201922128968.3U patent/CN211409981U/en active Active
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