CN219595123U - Omnibearing anti-pinch chair frame - Google Patents
Omnibearing anti-pinch chair frame Download PDFInfo
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- CN219595123U CN219595123U CN202320278897.9U CN202320278897U CN219595123U CN 219595123 U CN219595123 U CN 219595123U CN 202320278897 U CN202320278897 U CN 202320278897U CN 219595123 U CN219595123 U CN 219595123U
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- frame
- backrest
- frame body
- cushion
- pressure
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Abstract
The utility model provides an omnibearing anti-pinch chair frame, which relates to the technical field of dental chairs and comprises a frame body, a parallel frame anti-compression part, a frame body anti-compression part, a backrest anti-compression part and a cushion anti-compression part, wherein the parallel frame anti-compression part, the frame body anti-compression part, the backrest anti-compression part and the cushion anti-compression part are arranged on the frame body; the parallel frame anti-pressing component comprises a lower parallel frame, a lower parallel cover, a supporting spring and an anti-pressing switch I, wherein the lower parallel cover is hinged to the inner side of the lower parallel frame; the frame body pressure-proof component comprises a cushion support, a waistline lower shell and a pressure-proof switch II, wherein the cushion support is positioned in the waistline lower shell, and the pressure-proof switch II is arranged on the cushion support; the utility model has the beneficial effects that: the collision can be sensed in the movement process of each part of the frame body, so that the phenomenon that the personnel are crushed due to the fact that the frame body is pressed against an obstacle and then moves continuously when each part moves is avoided.
Description
Technical Field
The utility model relates to the technical field of dental chairs, in particular to an omnibearing anti-pinch chair frame.
Background
The dental chair is a necessary medical instrument in the current dental treatment, the frame body can be lifted up and down, the backrest can be laid down and raised, the cushion can swing at a certain angle, the driving force is from an internal driving motor, the movement is sometimes executed by a doctor by always pressing a control button, and sometimes is executed by an internal set program, for example, after the entering position is pressed, the frame body can be automatically lowered to the lowest, the backrest can be raised to the highest, and the button is not required to be pressed all the time.
If a patient or doctor mistakenly places a hand or a foot at a position where the chair moves and collides with the hand or the foot in the motor movement process, if no anti-compression device is designed, the chair still can continue to move, and the risk of injuring a person is also provided, because the motor driven by the chair only encounters larger resistance, the system can increase the power to continuously push the motor customer service resistance to continue to move, and medical accidents can be caused.
The design of the safety and pressure protection device is a point of consideration in the current dental chairs. However, the current safety anti-compression only considers the anti-compression of partial movement parts, such as the lower parallel cover and the backrest, but some positions which follow the movement and still have the risk of being injured by compression are ignored, such as the upper part of the parallel mechanism of the chair and the swinging part of the cushion.
Disclosure of Invention
Aiming at the technical problems in the prior art, the omnibearing anti-pinch chair frame is provided, collision can be perceived in the movement process of each part of the frame body, and the phenomenon that people are crushed due to continuous movement after the frame body presses an obstacle when each part moves is avoided.
The aim and the effect of the utility model are achieved by the following specific technical means:
an omnibearing anti-pinch chair frame comprises a frame body, a parallel frame anti-compression part, a frame body anti-compression part, a backrest anti-compression part and a cushion anti-compression part, wherein the parallel frame anti-compression part, the frame body anti-compression part, the backrest anti-compression part and the cushion anti-compression part are arranged on the frame body;
the parallel frame anti-pressing component comprises a lower parallel frame, a lower parallel cover, a supporting spring and an anti-pressing switch I, wherein the lower parallel cover is hinged to the inner side of the lower parallel frame;
the frame body pressure-proof component comprises a cushion support, a waistline lower shell and a pressure-proof switch II, wherein the cushion support is positioned in the waistline lower shell, and the pressure-proof switch II is arranged on the cushion support;
the backrest pressure-proof component comprises a bending plate, a backrest fixing plate, a backrest pressure spring, a pressure-proof switch III and a backrest rotating shaft, wherein the pressure-proof switch III is fixed at the top end of the bending plate, the backrest fixing plate is hinged on the bending plate through the backrest rotating shaft, and the backrest pressure spring is fixed on the bending plate through a plug-in screw;
the cushion pressure-proof component comprises a support frame, a support pipe rotating shaft and a pressure-proof switch IV, wherein the support pipe is rotatably connected to the support frame through the support pipe rotating shaft, and the pressure-proof switch IV is arranged on the support frame.
Optionally, the lower parallel frame is connected with a lower parallel frame shaft in a rotating way, and the lower parallel frame shaft is arranged at the bottom of the cushion of the frame body.
Optionally, the cushion support both sides limit all is fixed with the mounting panel, all install waistline lid pivot on the mounting panel, waistline lid pivot articulates on waistline inferior valve inner wall, waistline inferior valve installs in the cushion inner bottom of support body.
Optionally, the bent plate is installed on the back outside of the frame body, one end of the back pressure spring is propped against the screw, and the other end is propped against the back fixing plate.
Optionally, the support frame is installed at the top in the cushion of support body.
Compared with the prior art, the utility model has the beneficial effects that:
the all-dimensional anti-pinch chair frame is characterized in that the anti-pinch chair frame is provided with the anti-pinch component, the frame body anti-pinch component, the backrest anti-pinch component and the cushion anti-pinch component, and the anti-pinch chair frame is characterized in that the anti-pinch chair frame is provided with the anti-pinch component, the backrest anti-pinch component and the cushion anti-pinch component.
Drawings
FIG. 1 is a schematic diagram of the overall side view of the present utility model;
FIG. 2 is an exploded view of the parallel frame compression block of the present utility model;
FIG. 3 is a schematic perspective view of a parallel frame compression-resistant member of the present utility model;
FIG. 4 is an exploded view of the frame body pressure resistant member of the present utility model;
FIG. 5 is a schematic side view of a cross-sectional structure of a frame body pressure-proof member of the present utility model;
FIG. 6 is an exploded view of the back pressure resistant component of the present utility model;
FIG. 7 is a schematic side view of the pressure-proof component of the frame of the present utility model;
FIG. 8 is an exploded view of the cushion pressure guard of the present utility model;
fig. 9 is a schematic side view of the cushion pressure-preventing member of the present utility model.
The marks in the figure:
the parallel frame anti-pressing component 1, the lower parallel frame 11, the lower parallel cover 12, the supporting spring 13, the lower parallel frame shaft 14 and the anti-pressing switch I15;
the seat cushion comprises a frame body anti-compression component 2, a seat cushion bracket 21, a waistline lower shell 22, a mounting plate 23, a waistline cover rotating shaft 24 and an anti-compression switch II 25;
the backrest compression-proof component 3, the bending plate 31, the backrest fixing plate 32, the backrest compression spring shaft 33, the compression-proof switch III 34 and the backrest rotating shaft 35;
the cushion pressure-proof component 4, the support frame 41, the support pipe 42, the support pipe rotating shaft 43 and the pressure-proof switch IV 44;
and a frame body 5.
Detailed Description
Referring to fig. 1-9, embodiments of the present utility model are further described;
an omnibearing anti-pinch chair frame comprises a frame body 5, a parallel frame anti-compression part 1, a frame body anti-compression part 2, a backrest anti-compression part 3 and a cushion anti-compression part 4 which are arranged on the frame body 5;
the parallel frame anti-pressing component 1 comprises a lower parallel frame 11, a lower parallel cover 12, a supporting spring 13 and an anti-pressing switch I15, wherein the lower parallel cover 12 is hinged to the inner side of the lower parallel frame 11, the supporting spring 13 is arranged between the lower parallel frame 11 and the lower parallel cover 12, the anti-pressing switch I15 is fixed on the lower parallel frame 11, a lower parallel frame shaft 14 is rotatably connected to the lower parallel frame 11, and the lower parallel frame shaft 14 is arranged at the bottom of a cushion of the frame body 5;
the motor for providing power for the movement of the movable part and the movable part of the frame body 5 is arranged between the movable part and the movable part, the motor at the bottom of the cushion of the frame body 5 is electrically connected with the first pressure-proof switch 15, when the frame body 5 is normally used, the first pressure-proof switch 15 is in a closed state, when the barrier bumps against the lower parallel cover 12 to prevent the downward movement of the frame body 5, the lower parallel cover 12 overcomes the elasticity of the supporting spring 13, the supporting spring 13 is elastically deformed, the lower parallel cover 12 triggers the first pressure-proof switch 15, the first pressure-proof switch 15 closes the motor at the bottom of the cushion, and the frame body 5 is prevented from being continuously pressed down to cause personnel to be injured.
The frame body anti-compression component 2 comprises a cushion support 21, a waistline lower shell 22 and an anti-compression switch II 25, wherein the cushion support 21 is positioned in the waistline lower shell 22, the anti-compression switch II 25 is arranged on the cushion support 21, mounting plates 23 are fixed on two side edges of the cushion support 21, waistline cover rotating shafts 24 are arranged on the mounting plates 23, the waistline cover rotating shafts 24 are hinged to the inner wall of the waistline lower shell 22, and the waistline lower shell 22 is arranged at the bottom of the cushion of the frame body 5;
the motor at the bottom in the cushion of the frame body 5 is electrically connected with a second anti-press switch 25, and after the second anti-press switch 25 is arranged on the cushion bracket 21, a trigger rod on the second anti-press switch 25 is pressed by the waistline lower shell 22 to be in a triggered state; when the downward movement of the frame body 5 is blocked, if an obstacle touches the waistline lower shell 22, the waistline lower shell 22 is lifted, and swings upwards around the waistline cover rotating shaft 24, the trigger points of the two anti-pressing switches 25 are loosened, so that the motor at the bottom in the cushion is powered off, and the frame body 5 can be prevented from continuing to downwards to cause the personnel to be pressed.
The backrest compression-preventing component 3 comprises a bending plate 31, a backrest fixing plate 32, a backrest pressure spring 33, a compression-preventing switch III 34 and a backrest rotating shaft 35, wherein the compression-preventing switch III 34 is fixed at the top end of the bending plate 31, the backrest fixing plate 32 is hinged to the bending plate 31 through the backrest rotating shaft 35, the backrest pressure spring 33 is fixed on the bending plate 31 through a plug-in screw, the bending plate 31 is arranged on the outer side of the backrest of the frame body 5, one end of the backrest pressure spring 33 is propped against the screw, and the other end of the backrest pressure spring 33 is propped against the backrest fixing plate 32;
the motor on the outer side of the backrest of the frame body 5 is electrically connected with the third anti-pressing switch 34, when the backrest fixing plate 32 is attached to the bent plate 31, the trigger point of the third anti-pressing switch 34 is pressed, the backrest pressure spring 33 is fixed on the bent plate 31 through the inserting screw, the bent plate 31 is arranged on the outer side of the backrest of the frame body 5, one end of the backrest pressure spring 33 is propped against the screw, the other end of the backrest pressure spring 33 is propped against the backrest fixing plate 32, and the backrest fixing plate 32 can keep pressing the trigger point of the third anti-pressing switch 34; when the downward movement of the backrest of the frame body 5 is blocked, the backrest fixing plate 32 can be lifted, the backrest fixing plate swings upwards around the backrest rotating shaft 35, the trigger point of the pressure-proof switch III 34 is loosened, the motor on the outer side of the backrest of the frame body 5 can be closed, the frame body 5 is stopped, and further the frame body 5 can be prevented from continuing to move downwards to cause the personnel to be injured by pressure.
The cushion pressure-proof component 4 comprises a support frame 41, a support pipe 42, a support pipe rotating shaft 43 and a pressure-proof switch IV 44, wherein the support pipe 42 is rotatably connected to the support frame 41 through the support pipe rotating shaft 43, the pressure-proof switch IV 44 is arranged on the support frame 41, and the support frame 41 is arranged at the top of the cushion of the frame body 5;
the motor at the top in the cushion of the frame body 5 is electrically connected with the fourth anti-press switch 44, and the supporting tube 42 is directly pressed on the supporting frame 41 due to dead weight and load at ordinary times and is pressed on the trigger point of the fourth anti-press switch 44, so that the fourth anti-press switch 44 keeps a trigger state; when the downward movement of the frame body 5 is blocked due to the fact that an obstacle collides with the support frame 41, the support frame 41 is lifted, swings around the support pipe rotating shaft 43, the trigger point of the anti-pressing switch IV 44 is loosened, the motor at the top in the cushion of the frame body 5 is closed, the frame body 5 stops moving, and the frame body 5 is prevented from continuing to move downwards to cause the personnel to be pressed.
In summary, through the arrangement of the parallel frame anti-pressing component 1, the frame body anti-pressing component 2, the backrest anti-pressing component 3 and the cushion anti-pressing component 4, collision can be perceived in the moving process of each component of the frame body 5, and the situation that people are pressed and injured due to continuous movement after the frame body 5 presses an obstacle when each component moves is avoided.
Claims (5)
1. The omnibearing anti-pinch chair frame is characterized by comprising a frame body (5), a parallel frame anti-compression component (1), a frame body anti-compression component (2), a backrest anti-compression component (3) and a cushion anti-compression component (4), wherein the parallel frame anti-compression component (1), the frame body anti-compression component (2), the backrest anti-compression component (3) and the cushion anti-compression component (4) are arranged on the frame body (5);
the parallel frame anti-pressing component (1) comprises a lower parallel frame (11), a lower parallel cover (12), a supporting spring (13) and an anti-pressing switch I (15), wherein the lower parallel cover (12) is hinged to the inner side of the lower parallel frame (11), the supporting spring (13) is arranged between the lower parallel frame (11) and the lower parallel cover (12), and the anti-pressing switch I (15) is fixed on the lower parallel frame (11);
the frame body pressure-proof component (2) comprises a cushion bracket (21), a waistline lower shell (22) and a pressure-proof switch II (25), wherein the cushion bracket (21) is positioned in the waistline lower shell (22), and the pressure-proof switch II (25) is arranged on the cushion bracket (21);
the backrest compression-preventing component (3) comprises a bending plate (31), a backrest fixing plate (32), a backrest pressure spring (33), a compression-preventing switch III (34) and a backrest rotating shaft (35), wherein the compression-preventing switch III (34) is fixed at the top end of the bending plate (31), the backrest fixing plate (32) is hinged to the bending plate (31) through the backrest rotating shaft (35), and the backrest pressure spring (33) is fixed on the bending plate (31) through a plug-in screw;
the cushion pressure-proof component (4) comprises a support frame (41), a support tube (42), a support tube rotating shaft (43) and a pressure-proof switch IV (44), wherein the support tube (42) is rotatably connected to the support frame (41) through the support tube rotating shaft (43), and the pressure-proof switch IV (44) is arranged on the support frame (41).
2. An all-round anti-pinch chair frame according to claim 1, wherein: the lower parallel frame (11) is rotatably connected with a lower parallel frame shaft (14), and the lower parallel frame shaft (14) is arranged at the bottom of the cushion of the frame body (5).
3. An all-round anti-pinch chair frame according to claim 1, wherein: the seat cushion is characterized in that mounting plates (23) are fixed on two sides of the seat cushion support (21), waistline cover rotating shafts (24) are mounted on the mounting plates (23), the waistline cover rotating shafts (24) are hinged to the inner wall of a waistline lower shell (22), and the waistline lower shell (22) is mounted at the bottom in the seat cushion of the frame body (5).
4. An all-round anti-pinch chair frame according to claim 1, wherein: the bending plate (31) is arranged on the outer side of the backrest of the frame body (5), one end of the backrest pressure spring (33) is propped against the screw, and the other end is propped against the backrest fixing plate (32).
5. An all-round anti-pinch chair frame according to claim 1, wherein: the support frame (41) is arranged at the inner top of the cushion of the frame body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320278897.9U CN219595123U (en) | 2023-02-22 | 2023-02-22 | Omnibearing anti-pinch chair frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320278897.9U CN219595123U (en) | 2023-02-22 | 2023-02-22 | Omnibearing anti-pinch chair frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219595123U true CN219595123U (en) | 2023-08-29 |
Family
ID=87743019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320278897.9U Active CN219595123U (en) | 2023-02-22 | 2023-02-22 | Omnibearing anti-pinch chair frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219595123U (en) |
-
2023
- 2023-02-22 CN CN202320278897.9U patent/CN219595123U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |