CN202982545U - Backrest linkage for dental seat - Google Patents
Backrest linkage for dental seat Download PDFInfo
- Publication number
- CN202982545U CN202982545U CN 201220704711 CN201220704711U CN202982545U CN 202982545 U CN202982545 U CN 202982545U CN 201220704711 CN201220704711 CN 201220704711 CN 201220704711 U CN201220704711 U CN 201220704711U CN 202982545 U CN202982545 U CN 202982545U
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- CN
- China
- Prior art keywords
- plate
- backrest
- sides
- push rod
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a backrest linkage for a dental seat. The backrest linkage comprises a base plate, a movable hinge seat of a rear sliding groove, a movable hinge seat of a front sliding groove, horizontal back sliding grooves on both sides of side plates of a seat, inclined front sliding grooves on the both sides of the side plates of the seat, a movable hinge seat of a push rod, a foot plate, a motor fixing plate and a push rod motor. The push rod motor is connected with the movable hinge seat of the push rod through the push rod, first angles of triangle connection plates are connected to the outside surfaces of the side plates of the seat, and two rear ends of the side plates of the seat are connected with a backrest connection plate through a movable hinge of a backrest. One ends of a backrest push rods are hinged with the backrest connection plate, while the other ends of the backrest push rods are connected with second angles of the triangle connection plates, and third angles of the triangle connection plates are connected in a matched manner with blocks of inclined surfaces on both sides of the base plate. By the aid of the backrest linkage for the dental seat, the problems that a structure in the prior art needs a large space, down-regulation of a cushion is limited and operation is inconvenient are solved. The backrest linkage for dental seat has the advantages of simple structure, low cost and high lifting speed, and positions of the backrest can be adjusted automatically and simultaneously with the fast lifting speed and the like.
Description
Technical field
This utility model relates to medical device technology, is a kind of back-rest linked mechanism for dentistry chair seat specifically.
Background technology
Dental chair is the important medical apparatus and instruments in dental operation, known elevating mechanism mostly is greatly the lower mode that adopts mechanical linkage of present pad at present, its structure needs larger space, and the lower adjusted position of medicated cushion is restricted, and brings inconvenience to patient and doctor's operation.Particularly special requirement crowd, for example child and people with disability's medical particularly inconvenience.In addition, the position of back of seat mostly is after the seat lifting is completed at present, then adjusts by hand, comparatively bothers in operation.
The utility model content
The purpose of this utility model is to overcome the deficiency that above prior art exists, and provides a kind of simple in structure, low cost, rising or falling speed soon and can automatically adjust simultaneously the back-rest linked mechanism that is used for dentistry chair seat of position of back when lifting.
in order to achieve the above object, this utility model is by the following technical solutions: a kind of back-rest linked mechanism for dentistry chair seat, comprise base plate, the rear end of base plate both sides is the moving free bearing of affixed rear chute respectively, the front end of base plate both sides is the moving free bearing of affixed front chute respectively, after the level of the moving free bearing of rear chute and both sides seat side plate, chute is connected, the moving free bearing of front chute is connected with the front chute of the inclination of both sides seat side plate, the affixed push rod in base plate rear end centre position moves free bearing, both sides seat side plate front end connecting pin backing plate, connect motor fixing plate between the seat side plate front end of both sides, the affixed push-rod electric machine of motor fixing plate lower surface, push-rod electric machine is connected by the moving free bearing of push rod and push rod, first angle of triangular connecting plate is connected to both sides seat side plate outer surface, seat side plate rear end, both sides is moved hinge by backrest and is connected with the backrest connecting plate, backrest push rod one end and backrest connecting plate are hinged, the backrest push rod other end is connected with second angle of triangular connecting plate, the affixed inclined-plane in the 3rd angle of triangular connecting plate and base plate both sides is connected by piece.
For proof strength, described base plate is metallic plate.
For antirust and proof strength, described metallic plate is corrosion resistant plate.
For easy to adjust, the 3rd angle of described triangular connecting plate is provided with fixed pulley, and fixed pulley and inclined-plane are connected by the inclined-plane of piece.
Preferably, one of them angle of the described backrest push rod other end and triangular connecting plate is hinged.
In order to guarantee result of use, before described inclination, the angle of inclination of chute is 30 ~ 45 °.
In order to guarantee result of use, described inclined-plane is 30 ~ 45 ° by the angle of inclination of piece.
Preferably, described both sides seat side plate is " L " shape structure.
operation principle of the present utility model: a kind of back-rest linked mechanism for dentistry chair seat, comprise base plate, the rear end of base plate both sides is the moving free bearing of affixed rear chute respectively, the front end of base plate both sides is the moving free bearing of affixed front chute respectively, after the level of the moving free bearing of rear chute and both sides seat side plate, chute is connected, the moving free bearing of front chute is connected with the front chute of the inclination of both sides seat side plate, the affixed push rod in base plate rear end centre position moves free bearing, both sides seat side plate front end connecting pin backing plate, connect motor fixing plate between the seat side plate front end of both sides, the affixed push-rod electric machine of motor fixing plate lower surface, push-rod electric machine is connected by the moving free bearing of push rod and push rod, first angle of triangular connecting plate is connected to both sides seat side plate outer surface, seat side plate rear end, both sides is moved hinge by backrest and is connected with the backrest connecting plate, backrest push rod one end and backrest connecting plate are hinged, the backrest push rod other end is connected with second angle of triangular connecting plate, the affixed inclined-plane in the 3rd angle of triangular connecting plate and base plate both sides is connected by piece.
During practical application, push-rod electric machine work, the drive push rod elongates or shortens, because push rod is hinged on the moving free bearing of push rod, the moving free bearing of push rod is fixed on base plate, and push-rod electric machine is fixed on motor fixing plate, thereby the parts on base plate move forward and backward, because chute is arranged on the moving free bearing of front chute and the moving free bearing of rear chute before and after the seat side plate of both sides, rise simultaneously when before tilting, chute makes the seat reach, after descend simultaneously when moving.
The automatic adjustment of position of back realizes by linkage, when seat moves forward, drives simultaneously triangular connecting plate and moves forward, and at this moment the 3rd of triangular connecting plate the angle point leans on the piece down sliding along the inclined-plane, and the reach of backrest push rod drives the layback of backrest connecting plate; When seat moves backward, drive simultaneously triangular connecting plate and move backward, at this moment the 3rd of triangular connecting plate the angle point leans on the piece upward sliding along the inclined-plane, moves after the backrest push rod, drives the backrest connecting plate and leans forward.The relative position of seat and backrest can be adjusted by the gradient of piece by adjusting the inclined-plane.
This utility model has following advantage and effect with respect to prior art:
1, this utility model has adopted and has comprised base plate, the rear end of base plate both sides is the moving free bearing of affixed rear chute respectively, the front end of base plate both sides is the moving free bearing of affixed front chute respectively, after the level of the moving free bearing of rear chute and both sides seat side plate, chute is connected, the moving free bearing of front chute is connected with the front chute of the inclination of both sides seat side plate, the affixed push rod in base plate rear end centre position moves free bearing, both sides seat side plate front end connecting pin backing plate, connect motor fixing plate between the seat side plate front end of both sides, the affixed push-rod electric machine of motor fixing plate lower surface, push-rod electric machine is connected by the moving free bearing of push rod and push rod, first angle of triangular connecting plate is connected to both sides seat side plate outer surface, seat side plate rear end, both sides is moved hinge by backrest and is connected with the backrest connecting plate, backrest push rod one end and backrest connecting plate are hinged, the backrest push rod other end is connected with second angle of triangular connecting plate, the affixed inclined-plane in the 3rd angle of triangular connecting plate and base plate both sides is connected by piece, have simple in structure, low cost, rising or falling speed soon and can be when lifting automatically adjust simultaneously the characteristics such as position of back.
2, the base plate in this utility model is metallic plate, and metallic plate is preferably corrosion resistant plate, has both guaranteed rigidity and requirement of strength, and is elegant in appearance again, is difficult for getting rusty.
3, the 3rd of the triangular connecting plate in this utility model the angle is provided with fixed pulley, and fixed pulley and inclined-plane are connected by the inclined-plane of piece, guaranteed the convenience of regulating, and more easily regulates.
4, the inclined-plane in this utility model is 30 ~ 45 ° by the angle of inclination of piece, can change according to actual needs or adjust the angle of inclination, is in the optimum position to guarantee backrest.
Description of drawings
Fig. 1 is a kind of front view of the back-rest linked mechanism for dentistry chair seat;
Fig. 2 is being raised to of a kind of back-rest linked mechanism for dentistry chair seat structural representation when the highest;
Fig. 3 is dropping to of a kind of back-rest linked mechanism for dentistry chair seat structural representation when minimum.
Number in the figure and title are as follows:
| 1 | |
2 | Rear chute moves free bearing |
| 3 | Front chute moves free bearing | 4 | Rear |
| 5 | |
6 | Push rod moves free bearing |
| 7 | The |
8 | |
| 9 | Push-rod |
10 | |
| 11 | |
12 | The moving hinge of |
| 13 | The |
14 | The |
| 15 | The inclined-plane is by |
16 | The |
| 17 | Fixed pulley | ? | ? |
The specific embodiment
For ease of it will be appreciated by those skilled in the art that the utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment 1:
as shown in Fig. 1 ~ 3, a kind of back-rest linked mechanism for dentistry chair seat, comprise base plate 1, the rear end of base plate 1 both sides is the moving free bearing 2 of affixed rear chute respectively, the front end of base plate 1 both sides is the moving free bearing 3 of affixed front chute respectively, after the level of the moving free bearing 2 of rear chute and both sides seat side plate 16, chute 4 is connected, the moving free bearing 3 of front chute is connected with the front chute 5 of the inclination of both sides seat side plate 16, the base plate 1 affixed push rod in centre position, rear end moves free bearing 6, both sides seat side plate 16 front end connecting pin backing plates 7, connect motor fixing plate 8 between seat side plate 16 front ends of both sides, the motor fixing plate 8 affixed push-rod electric machines 9 of lower surface, push-rod electric machine 9 is connected by the moving free bearing 6 of push rod 10 and push rod, first angle of triangular connecting plate 11 connects (hinged) at both sides seat side plate 16 outer surfaces, seat side plate 16 rear ends, both sides are moved hinge 12 by backrest and are connected (hinged) with backrest connecting plate 13, backrest push rod 14 1 ends and backrest connecting plate 13 are hinged, backrest push rod 14 other ends are connected with second angle of triangular connecting plate 11, the affixed inclined-plane in the 3rd angle of triangular connecting plate 11 and base plate 1 both sides is connected by piece 15.For easy to adjust, the 3rd angle of triangular connecting plate 11 is provided with fixed pulley 17, and fixed pulley 17 is connected with the inclined-plane of inclined-plane by piece 15, and second angle of backrest push rod 14 other ends and triangular connecting plate 11 is hinged.Both sides seat side plate 16 in the present embodiment is " L " shape structure.
In the present embodiment, base plate 1 is metallic plate, and for antirust and proof strength, metallic plate is corrosion resistant plate.
In order to guarantee result of use, before the inclination in the present embodiment, the angle of inclination of chute 5 is 30 ~ 45 °, and the inclined-plane is 30 ~ 45 ° by the angle of inclination of piece 15.
The above-mentioned specific embodiment is preferred embodiment of the present utility model; can not limit this utility model; other any change that does not deviate from the technical solution of the utility model and make or other equivalent substitute mode are within being included in protection domain of the present utility model.
Claims (8)
1. back-rest linked mechanism that is used for dentistry chair seat, it is characterized in that: comprise base plate, the rear end of base plate both sides is the moving free bearing of affixed rear chute respectively, the front end of base plate both sides is the moving free bearing of affixed front chute respectively, after the level of the moving free bearing of rear chute and both sides seat side plate, chute is connected, the moving free bearing of front chute is connected with the front chute of the inclination of both sides seat side plate, the affixed push rod in base plate rear end centre position moves free bearing, both sides seat side plate front end connecting pin backing plate, connect motor fixing plate between the seat side plate front end of both sides, the affixed push-rod electric machine of motor fixing plate lower surface, push-rod electric machine is connected by the moving free bearing of push rod and push rod, first angle of triangular connecting plate is connected to both sides seat side plate outer surface, seat side plate rear end, both sides is moved hinge by backrest and is connected with the backrest connecting plate, backrest push rod one end and backrest connecting plate are hinged, the backrest push rod other end is connected with second angle of triangular connecting plate, the affixed inclined-plane in the 3rd angle of triangular connecting plate and base plate both sides is connected by piece.
2. the back-rest linked mechanism for dentistry chair seat according to claim 1, it is characterized in that: described base plate is metallic plate.
3. the back-rest linked mechanism for dentistry chair seat according to claim 2, it is characterized in that: described metallic plate is corrosion resistant plate.
4. the back-rest linked mechanism for dentistry chair seat according to claim 1, it is characterized in that: the 3rd angle of described triangular connecting plate is provided with fixed pulley, and fixed pulley and inclined-plane are connected by the inclined-plane of piece.
5. the back-rest linked mechanism for dentistry chair seat according to claim 1, it is characterized in that: one of them angle of the described backrest push rod other end and triangular connecting plate is hinged.
6. the back-rest linked mechanism for dentistry chair seat according to claim 1 is characterized in that: before described inclination, the angle of inclination of chute is 30 ~ 45 °.
7. the back-rest linked mechanism for dentistry chair seat according to claim 1 is characterized in that: described inclined-plane is 30 ~ 45 ° by the angle of inclination of piece.
8. the back-rest linked mechanism for dentistry chair seat according to claim 1 is characterized in that: described both sides seat side plate is " L " shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704711 CN202982545U (en) | 2012-12-18 | 2012-12-18 | Backrest linkage for dental seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220704711 CN202982545U (en) | 2012-12-18 | 2012-12-18 | Backrest linkage for dental seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202982545U true CN202982545U (en) | 2013-06-12 |
Family
ID=48553779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220704711 Expired - Fee Related CN202982545U (en) | 2012-12-18 | 2012-12-18 | Backrest linkage for dental seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202982545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103735385A (en) * | 2014-01-16 | 2014-04-23 | 咸阳西北医疗器械(集团)有限公司 | Horizontal compensation mechanism used for dental chair |
-
2012
- 2012-12-18 CN CN 201220704711 patent/CN202982545U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103735385A (en) * | 2014-01-16 | 2014-04-23 | 咸阳西北医疗器械(集团)有限公司 | Horizontal compensation mechanism used for dental chair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |