CN204071276U - A kind of back lifting gearing - Google Patents
A kind of back lifting gearing Download PDFInfo
- Publication number
- CN204071276U CN204071276U CN201420464836.2U CN201420464836U CN204071276U CN 204071276 U CN204071276 U CN 204071276U CN 201420464836 U CN201420464836 U CN 201420464836U CN 204071276 U CN204071276 U CN 204071276U
- Authority
- CN
- China
- Prior art keywords
- slide block
- tooth
- substrate
- steel plate
- back lifting
- 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 kind of back lifting gearing, comprise steel plate, substrate and slide block, described substrate is fixed on steel plate by screw, substrate center has the first tooth, and described substrate both sides have side groove; Slide block is arranged two roller bearings, roller bearing inserts the side groove of substrate, and described slide block is provided with the second tooth, the second tooth and the engagement of the first tooth; Spring screw assembly is through slide block and steel plate, and install stop nut at the steel plate back side by fixing for spring screw assembly location, spring end face is stuck in the hole of slide block, and when pulling forward slide block, the second tooth on slide block is separated with the first tooth on substrate.Back lifting gearing structure of the present utility model is simple, easy to operate, low cost of manufacture.
Description
Technical field
The utility model relates to household goods field, specifically a kind of back lifting gearing.
Background technology
In order to adapt to the difference person of being seated, back can be designed to lift, and back lifting gearing structure of the prior art often more complicated, manufacturing cost is higher.
Utility model content
In order to solve the above-mentioned technical problem existed in prior art, the utility model provides a kind of back lifting gearing, comprises steel plate, substrate and slide block, and described substrate is fixed on steel plate by screw, substrate center has the first tooth, described substrate both sides have side groove; Slide block is arranged two roller bearings, roller bearing inserts the side groove of substrate, and described slide block is provided with the second tooth, the second tooth and the engagement of the first tooth; Spring screw assembly is through slide block and steel plate, install stop nut at the steel plate back side by fixing for spring screw assembly location, spring end face is stuck in the hole of slide block, when pulling forward slide block, slide block lower end is located by roller bearing, and the second tooth in upper end of slide block is separated with the first tooth on substrate.
Further, described Interal fixation is on chair cushion, and slide block is fixed on back.
Further, described roller bearing inserts in the hole on slide block, flushes with the outside of slide block.
Back lifting gearing structure of the present utility model is simple, easy to operate, low cost of manufacture.
Accompanying drawing explanation
Fig. 1,2 is back lifting gearing jacking condition schematic diagrames of the present utility model;
Fig. 3 is the explosive view of this back lifting gearing.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As Figure 1-3, back lifting gearing of the present utility model, comprise steel plate 1, substrate 2 and slide block 3, steel plate 1 is fixed on chair cushion, and slide block 3 is fixed on back, and slide block 3 can be free to slide relative to steel plate 1, thus realizes freely being elevated of backrest.
Substrate 2 is fixed on steel plate 1 by screw 4, has the first tooth 5 in substrate 2 in the heart, and substrate 2 both sides have side groove 6; Slide block 3 is arranged two roller bearings 7, roller bearing 7 inserts the side groove 6 of substrate 2, and roller bearing 7 inserts in the hole 11 on slide block 3, and flushes with the outside of slide block 3, and slide block 3 is provided with the second tooth 8, second tooth 8 and the first tooth engagement 5; Spring screw assembly 9, through slide block 3 and steel plate 1, is installed stop nut 10 and is located fixing by spring screw assembly 9 at steel plate 1 back side.Spring end face is stuck in the hole of slide block, and when pulling forward slide block 3, under the action of the spring, slide block 3 lower end is spacing by roller bearing 7, and the second tooth 8 of slide block 3 upper end is separated with the first tooth 5 on substrate 2.
When back lifting gearing of the present utility model uses, pull forward slide block 3, spring-compressed, slide block 3 lower end is spacing by roller bearing 7, and the second tooth 8 of slide block 3 upper end separates with the first tooth 5 on substrate 2, and now slide block 3 can slide up and down along substrate 2 lateral groove; Loose one's grip rear slider 3 resilience under the action of the spring, the first tooth 8 and the second tooth 5 engage, and slide block 2 is locked again.
Claims (3)
1. a back lifting gearing, comprise steel plate (1), substrate (2) and slide block (3), it is characterized in that: described substrate (2) is fixed on steel plate (1) by screw (4), has the first tooth (5) in substrate (2) in the heart, and described substrate (2) both sides have side groove (6); Slide block (3) is arranged two roller bearings (7), roller bearing (7) inserts the side groove (6) of substrate, and described slide block (3) is provided with the second tooth (8), the second tooth (8) and the first tooth engagement (5); Spring screw assembly (9) is through slide block (3) and steel plate (1), stop nut is installed by fixing for spring screw assembly (9) location at steel plate (1) back side, spring end face is stuck in the hole of slide block, when pulling forward slide block (3), slide block lower end is by roller bearing (7) location, and the second tooth (8) in upper end of slide block is separated with the first tooth (5) on substrate (2).
2. back lifting gearing as claimed in claim 1, it is characterized in that: described steel plate (1) is fixed on chair cushion, slide block (3) is fixed on back.
3. back lifting gearing as claimed in claim 1, is characterized in that: described roller bearing (7) inserts in the hole (11) on slide block (3), and flushes with the outside of slide block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464836.2U CN204071276U (en) | 2014-08-18 | 2014-08-18 | A kind of back lifting gearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420464836.2U CN204071276U (en) | 2014-08-18 | 2014-08-18 | A kind of back lifting gearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204071276U true CN204071276U (en) | 2015-01-07 |
Family
ID=52164058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420464836.2U Expired - Fee Related CN204071276U (en) | 2014-08-18 | 2014-08-18 | A kind of back lifting gearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204071276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108968466A (en) * | 2018-09-27 | 2018-12-11 | 浙江粤强家具科技有限公司 | Swivel chair |
| DE102020133699B4 (en) | 2019-12-31 | 2022-09-08 | Yi-Ru Chen | QUICKLY INSTALLABLE HEADREST ADJUSTMENT DEVICE |
-
2014
- 2014-08-18 CN CN201420464836.2U patent/CN204071276U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108968466A (en) * | 2018-09-27 | 2018-12-11 | 浙江粤强家具科技有限公司 | Swivel chair |
| DE102020133699B4 (en) | 2019-12-31 | 2022-09-08 | Yi-Ru Chen | QUICKLY INSTALLABLE HEADREST ADJUSTMENT DEVICE |
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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: 20150107 Termination date: 20170818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |