CN202722984U - Lifting device for adjusting height of table or chair through rotation of crank - Google Patents
Lifting device for adjusting height of table or chair through rotation of crank Download PDFInfo
- Publication number
- CN202722984U CN202722984U CN 201220398074 CN201220398074U CN202722984U CN 202722984 U CN202722984 U CN 202722984U CN 201220398074 CN201220398074 CN 201220398074 CN 201220398074 U CN201220398074 U CN 201220398074U CN 202722984 U CN202722984 U CN 202722984U
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- CN
- China
- Prior art keywords
- tables
- chairs
- support leg
- turning cylinder
- crank
- 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 relates to a lifting device for adjusting the height of a table or a chair through rotation of a crank. A screw rod is mounted in an outer support leg of the table or the chair through screw threads, the screw rod penetrates into the outer support leg and an inner support leg of the table or the chair, a first cone gear is arranged above the screw rod, a second cone gear is mounted on the inner support leg of the table or the chair or on a support beam of a support surface above the inner support leg of the table or the chair through a rotating shaft, and the second cone gear and the first cone gear are meshed with each other. The rotating shaft is connected with the crank. The lifting device for adjusting the height of the table or the chair through the rotation of the crank has the advantages of being economical, practical, easy in height adjustment, high in efficiency, safe and stable.
Description
Technical field
The utility model relate to a kind of study table, computer desk, desk, learning chair or other desk and chair use can simple and convenient adjusting desk and the crank of chair height rotate the tables and chairs lowering or hoisting gear of regulating height.
Background technology
At present; study table, computer desk, desk, learning chair or other desk and chair are in use; sometimes need to regulate according to user's sitting height the height of desk or chair; especially student's height changes very fast with advancing age; therefore in the process of using desk and chair, need constantly to regulate its height; be convenient to protect student's eyesight; simultaneously in the use procedure of desk and chair; the people of different heights has different requirements to the height of desk or chair, all needs in use the height of desk or chair to be regulated.
Present desk or chair height adjusting device generally are that the double connecting plate on its interconnective two supporting legs is equipped with corresponding hole, be fixed with connecting bolt in the connecting hole between two supporting legs, when regulating height, need to turn on connecting bolt, again between the new connecting hole between two supporting legs connecting bolt is installed again by new height, this desk or chair height adjusting device exist complex operation, difficult adjusting, effort is time-consuming, cost is high, baroque defective; For this defective, a kind of device of automatic controlled height occurred in market, but the defectives such as device is high because of its cost, complex structure are difficult to be accepted by the consumer.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of crank that can regulate easily desk and chair height to rotate the tables and chairs lowering or hoisting gear of regulating height.
The purpose of this utility model be achieved in that comprise the tables and chairs outer support leg that is fixedly connected with or directly is based on ground with the tables and chairs supporting seat, be sleeved in the tables and chairs outer support leg and can be along the tables and chairs inner support leg of tables and chairs outer support leg lifting, be fixedly installed on the brace summer of the tables and chairs supporting surface on the tables and chairs inner support leg
Tables and chairs outer support leg inside is equipped with screw rod by screw thread, and screw rod is through in tables and chairs outer support leg and the tables and chairs inner support leg, is provided with the first conical gear on screw rod top,
By turning cylinder the second conical gear is being installed on the tables and chairs inner support leg or on the brace summer of the tables and chairs supporting surface on tables and chairs inner support leg top, the second conical gear is meshed with the first conical gear, and turning cylinder is connected with crank.
Described tables and chairs outer support leg inside is equipped with screw rod by screw thread and refers to be fixed with nut in tables and chairs outer support leg inside, at the nut screw rod that has been threaded.
Described tables and chairs outer support leg inside is equipped with screw rod by screw thread and refers to be fixed with in tables and chairs outer support leg inside square column with internal thread, is connected with screw rod at the internal thread of square column.
The second conical gear and the first conical gear are concurrent aces Bevel Gear Drive system, control the position of the turning cylinder of the second conical gear rotation and the screw rod that control the first conical gear rotates for mutually vertical, the second conical gear and the first conical gear engagement place are positioned at casing, on casing, by bearing turning cylinder is installed, the brace summer intersection side of tables and chairs inner support leg and tables and chairs supporting surface have circular hole and above have square hole, casing be installed on the tables and chairs inner support leg by this square hole or the brace summer of the tables and chairs supporting surface on tables and chairs inner support leg top on, the corresponding turning cylinder of this circular hole.
Described turning cylinder is the turning cylinder of hollow, and the inwall of its hollow is many prismatics inwall, the multiple edge body of the turning cylinder of crank for matching with this many prismatics inwall.
The turning cylinder of described turning cylinder for being fixedly connected with the turning cylinder of crank.
Have the oiling service hatch at casing.
The utlity model has economical and practical, the advantages such as adjusting is easy, efficient is high, safety and stability.
Description of drawings
Fig. 1 is the structural representation of the utility model outside.
Fig. 2 is the structural representation of crank in the utility model.
Fig. 3 is the brace summer of the utility model tables and chairs supporting surface and the structural representation of inner support leg intersection.
Fig. 4 is the structural representation of inner lowering or hoisting gear in the utility model.
Fig. 5 is that the utility model is the structural representation in the casing.
The specific embodiment
Embodiment 1: shown in Fig. 1,2,3,4,5, the utility model comprises the tables and chairs outer support leg 1 that is fixedly connected with or directly is based on ground with tables and chairs supporting seat 13, be sleeved in the tables and chairs outer support leg 1 and can be along the tables and chairs inner support leg 2 of tables and chairs outer support leg 1 lifting, be fixedly installed on the brace summer 3 of the tables and chairs supporting surface on the tables and chairs inner support leg 2
Be fixed with nut in tables and chairs outer support leg 1 inside, at the nut screw rod 6 that has been threaded, screw rod 6 is through in tables and chairs outer support leg 1 and the tables and chairs inner support leg 2, be provided with the first conical gear 10 on screw rod top, on tables and chairs inner support leg 2, by turning cylinder 14 the second conical gear 9 is installed, the second conical gear 9 is meshed with the first conical gear 10, and turning cylinder 14 is connected with crank 12.
The turning cylinder of turning cylinder 14 for being fixedly connected with the turning cylinder of crank 12.
Have oiling service hatch 16 at casing 5.
At last with rubber pad encapsulation square hole 15.
When raising or reduce tables and chairs, thereby shaking 14 rotations of crank 12 drive turning cylinders rotates the second conical gear 9, thereby the second conical gear 9 drives the first bevel gear 10 and drives screw rod 6 rotations, make screw rod 6 enter nut, reduce the tables and chairs height, if counter-rotating crank 12 during the rising tables and chairs rolls nut away from thereby drive screw rod 6 rotations, and then finishes the action of rising tables and chairs height.
Embodiment 2: shown in Fig. 1,2,3,4,5, the utility model comprises the tables and chairs outer support leg 1 that is fixedly connected with or directly is based on ground with tables and chairs supporting seat 13, be sleeved in the tables and chairs outer support leg 1 and can be along the tables and chairs inner support leg 2 of tables and chairs outer support leg 1 lifting, be fixedly installed on the brace summer 3 of the tables and chairs supporting surface on the tables and chairs inner support leg 2
Tables and chairs outer support leg 1 inside is equipped with screw rod 6 by screw thread and refers to be fixed with in tables and chairs outer support leg 1 inside square column 8 with internal thread 7, is connected with screw rod 6 at the internal thread 7 of square column 8.
The second conical gear 9 and the first conical gear 10 are concurrent aces Bevel Gear Drive system, control the position of the turning cylinder 14 of the second conical gear 9 rotations and the screw rod 6 that control the first conical gear 10 rotates for mutually vertical, the second conical gear 9 and the first conical gear 10 engagement places are positioned at casing 5, on casing 5, by bearing 18 turning cylinder 14 is installed, the brace summer 3 intersection sides of tables and chairs inner support leg 2 and tables and chairs supporting surface have circular hole 4 and above have square hole 15, casing 5 is installed in by this square hole 15 on the brace summer 3 of tables and chairs supporting surface on tables and chairs inner support leg 2 tops, these circular hole 4 corresponding turning cylinders 14.
Turning cylinder 14 is the turning cylinder of hollow, and the inwall 11 of its hollow is many prismatics inwall, the multiple edge body of the turning cylinder of crank 12 for matching with this many prismatics inwall.
Have oiling service hatch 16 at casing 5.
The second conical gear 9 and the first conical gear 10 are helical bevel gear.
Make complete after, inner lowering or hoisting gear is packed in the supporting leg by square hole 15,
Then at tables and chairs outer support leg 1 and tables and chairs supporting seat 13 intersection bottom surfaces fixedly square column 8 of screw 17 is set,
On the side, brace summer 3 confluce of tables and chairs inner support leg 2 and tables and chairs supporting surface screw 17 static housings 5 are set,
Add lubricating oil and can observe from here the gear operation situation from oiling service hatch 16,
At last with rubber pad encapsulation square hole 15.
When raising or reduce tables and chairs, crank 12 is interted on turning cylinder 14, thereby shaking 14 rotations of crank 12 drive turning cylinders rotates the second conical gear 9, thereby the second conical gear 9 drives the first bevel gear 10 and drives screw rod 6 rotations, make screw rod 6 enter square column 8, reduce the tables and chairs height, if counter-rotating crank 12 during the rising tables and chairs, thereby drive screw rod 6 rotations and roll square column 8 away from, and then finish the action of rising tables and chairs height.
The utility model can be regulated desk and chair height easily, have advantages of simple in structure, economical and practical, regulate easily, efficient is high, safe and reliable, cost is low.
Claims (7)
1. a crank rotates the tables and chairs lowering or hoisting gear of regulating height, comprise the tables and chairs outer support leg (1) that is fixedly connected with or directly is based on ground with tables and chairs supporting seat (13), be sleeved in the tables and chairs outer support leg (1) and can be along the tables and chairs inner support leg (2) of tables and chairs outer support leg (1) lifting, be fixedly installed on the brace summer (3) of the tables and chairs supporting surface on the tables and chairs inner support leg (2), it is characterized in that: tables and chairs outer support leg (1) is inner to be equipped with screw rod (6) by screw thread, screw rod (6) is through in tables and chairs outer support leg (1) and the tables and chairs inner support leg (2), be provided with the first conical gear (10) on screw rod top, the brace summer (3) of the tables and chairs supporting surface on or tables and chairs inner support leg (2) top upper at tables and chairs inner support leg (2) is equipped with the second conical gear (9) by turning cylinder (14), the second conical gear (9) is meshed with the first conical gear (10), and turning cylinder (14) is connected with crank (12).
2. crank according to claim 1 rotates the tables and chairs lowering or hoisting gear of regulating height, it is characterized in that: described tables and chairs outer support leg (1) is inner to be equipped with screw rod (6) by screw thread and to refer to be fixed with nut in tables and chairs outer support leg (1) inside, at the nut screw rod (6) that has been threaded.
3. crank according to claim 1 rotates the tables and chairs lowering or hoisting gear of regulating height, it is characterized in that: described tables and chairs outer support leg (1) is inner to be equipped with screw rod (6) by screw thread and to refer to be fixed with in tables and chairs outer support leg (1) inside square column (8) with internal thread (7), and the internal thread (7) in square column (8) is connected with screw rod (6).
4. crank according to claim 1 rotates the tables and chairs lowering or hoisting gear of regulating height, it is characterized in that: the second conical gear (9) is concurrent aces Bevel Gear Drive system with the first conical gear (10), control the position of the turning cylinder (14) of the second conical gear (9) rotation and the screw rod (6) that control the first conical gear (10) rotates for mutually vertical, the second conical gear (9) is positioned at casing (5) with the first conical gear (10) engagement place, by bearing (18) turning cylinder (14) is installed at casing (5), brace summer (3) the intersection side of tables and chairs inner support leg (2) and tables and chairs supporting surface have circular hole (4) and above have square hole (15), casing (5) is installed in by this square hole (15) on the brace summer (3) of tables and chairs supporting surface on upper or tables and chairs inner support leg (2) top of tables and chairs inner support leg (2), the corresponding turning cylinder of this circular hole (4) (14).
5. crank according to claim 4 rotates the tables and chairs lowering or hoisting gear of regulating height, it is characterized in that: described turning cylinder (14) is the turning cylinder of hollow, the inwall of its hollow (11) is many prismatics inwall, the multiple edge body of the turning cylinder of crank (12) for matching with this many prismatics inwall.
6. crank according to claim 4 rotates the tables and chairs lowering or hoisting gear of regulating height, it is characterized in that: the turning cylinder of described turning cylinder (14) for being fixedly connected with the turning cylinder of crank (12).
7. crank according to claim 4 rotates the tables and chairs lowering or hoisting gear of regulating height, it is characterized in that: have oiling service hatch (16) at casing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398074 CN202722984U (en) | 2012-08-13 | 2012-08-13 | Lifting device for adjusting height of table or chair through rotation of crank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220398074 CN202722984U (en) | 2012-08-13 | 2012-08-13 | Lifting device for adjusting height of table or chair through rotation of crank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202722984U true CN202722984U (en) | 2013-02-13 |
Family
ID=47648749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220398074 Expired - Fee Related CN202722984U (en) | 2012-08-13 | 2012-08-13 | Lifting device for adjusting height of table or chair through rotation of crank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202722984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984922A (en) * | 2015-06-08 | 2015-10-21 | 浙江汇力胶囊有限公司 | Multifunctional lamp inspection table for inspecting capsules |
-
2012
- 2012-08-13 CN CN 201220398074 patent/CN202722984U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104984922A (en) * | 2015-06-08 | 2015-10-21 | 浙江汇力胶囊有限公司 | Multifunctional lamp inspection table for inspecting capsules |
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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: 20130213 Termination date: 20150813 |
|
| EXPY | Termination of patent right or utility model |