CN203709562U - Locking device for lifting desk and chair feet - Google Patents
Locking device for lifting desk and chair feet Download PDFInfo
- Publication number
- CN203709562U CN203709562U CN201420011391.2U CN201420011391U CN203709562U CN 203709562 U CN203709562 U CN 203709562U CN 201420011391 U CN201420011391 U CN 201420011391U CN 203709562 U CN203709562 U CN 203709562U
- Authority
- CN
- China
- Prior art keywords
- locking
- vertical tube
- chair pin
- synchromesh gear
- cross bar
- 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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- Tables And Desks Characterized By Structural Shape (AREA)
Abstract
A locking device for lifting desk and chair feet comprises vertical rods positioned on the left side and the right side of a desk foot or a chair foot, and a cross rod is connected between the vertical rods positioned on the left side and the right side of the desk foot or the chair foot. The locking device is characterized in that the vertical rods on the left side and the right side comprise outer vertical pipes and inner vertical pipes, the cross rod is connected between the two outer vertical pipes and communicated with the outer vertical pipes, the inner vertical pipes are inserted in the outer vertical pipes, and locking holes are formed in one side of the inner vertical pipes located on the cross rod. An upper locking rod, a lower locking rod and a synchronous gear are arranged in the cross rod, an upper synchronous rack is arranged at one end of the upper locking rod, a right locking plug is arranged at the other end of the upper locking rod, a lower synchronous rack is arranged at one end of the lower locking rod, and a left locking plug is arranged at the other end of the lower locking rod. The synchronous gear is meshed with the upper synchronous rack and the lower synchronous rack, and the right locking plug and the left locking plug are matched with the locking holes in the inner vertical pipes on the left side and the right side.
Description
Technical field
The utility model relates to the locking device of lifting desk chair pin, belongs to teaching equipment.
Background technology
Middle and primary schools' desk, it is unified mostly the specification of chair is generally, but the height difference of student's stature is larger, in order to meet the different stature students' of height needs, develop in recent years energy desk with adjustable, the table of chair height, chair pin, traditional table, it is by table that chair pin regulates, the both sides of chair are shaped with connecting plate, on connecting plate, open the adjustment hole of multiple differing heights, at table, on chair pin, have fixing hole, table, the both sides of chair pin are respectively fixed through nut through adjustment hole and fixing hole by two pieces of double-screw bolts, table, the lifting of chair pin is by regulating fixing hole corresponding with the adjustment hole of differing heights, reach the adjusting of lifting, this structure all will first screw down double-screw bolt and nut at every turn in the time regulating, again that fixing hole is corresponding with the adjustment hole of desired height, finally tighten double-screw bolt and nut, operation is trouble very, effort, governing speed is slow, and people's inconvenient operation.
Summary of the invention
The purpose of this utility model is the shortcoming existing in order to overcome prior art, provide a kind of to locking after desk, chair pin descending operation, locking is stable, reliable, and locking, unlocking operation conveniently, are conducive to the locking device of the lifting desk chair pin of desk, chair pin lift adjustment.
The technical scheme of the locking device of the utility model lifting desk chair pin is: the left and right sides montant that comprises a pin or chair pin, between the left and right sides montant of table pin or chair pin, connect cross bar, it is characterized in that: the montant of the described left and right sides comprises outer vertical tube and interior vertical tube, cross bar is connected between two outer vertical tubes, cross bar communicates with outer vertical tube, interior vertical tube inserts in outer vertical tube, be positioned in cross bar one side and have locking hole at interior vertical tube, in described cross bar, check lock lever is set, lower check lock lever and synchromesh gear, make synchronous tooth bar one of upper check lock lever, other end is shaped with right locking plug, make lower synchronous tooth bar one of lower check lock lever, other end is shaped with left locking plug, synchromesh gear and upper, lower synchronous tooth bar is meshed, right, left locking plug is with right, in left both sides, the locking hole of vertical tube matches.
The utility model discloses a kind of locking device of lifting desk chair pin, by check lock lever is set in cross bar, lower check lock lever and synchromesh gear, on, lower check lock lever is made respectively near of synchromesh gear, lower synchronous tooth bar, on, lower synchronous tooth bar is meshed with synchromesh gear, when will be to desk, when chair pin carries out descending operation, rotate counterclockwise synchromesh gear, on synchromesh gear drives, lower synchronous tooth bar moves inward, on, in lower synchronous rack drives, the right side of lower check lock lever, left locking plug exits the locking hole of interior vertical tube and inwardly stretches in cross bar, and now interior vertical tube does lifting moving in vertical tube outside, and after interior vertical tube adjusting puts in place, the synchromesh gear that turns clockwise, on synchromesh gear drives, lower synchronous tooth bar outwards moves, on, in lower synchronous rack drives, the right side of lower check lock lever, left locking plug outwards inserts in the locking hole of interior vertical tube, by the right side, left locking plug blocks locking hole, makes interior vertical tube obtain locking positioning, and locking is stable, reliably, avoid generation to move up and down.The locking device of this programme lifting desk chair pin, only need rotational synchronization gear can make upper and lower check lock lever deviate from or snap in outer vertical tube and interior vertical tube, a personal hand is rotatable, easy to operate, snap in rear locking stable, reliable, be conducive to desk, chair pin carries out lift adjustment.
The locking device of the utility model lifting desk chair pin, described right locking plug and left locking plug are tip.Described tip is conical tip or triangular pointed.When locking hole is during with right, left locking plug complete matching, tip is more conducive to the right side, left locking plug inserts in locking hole.Described locking hole is 3-5.Can, according to the difference of desk, chair pin institute adjusting height spacing, the locking hole of varying number be set.In described cross bar, lock core is installed, synchromesh gear inserts lock core driven rotary through key, and the synchromesh gear of rotation drives lock tight bar and lower check lock lever to move.On described synchromesh gear, be equipped with hexagon prism, synchromesh gear drives hexagon prism rotation through spanner, and the synchromesh gear of rotation drives lock tight bar and lower check lock lever to move.Left limit plate and right limit plate are set in described cross bar, have left limit hole in left limit plate, matching with left locking plug in left limit hole, has right limit hole in right limit plate, matches with right locking plug in right limit hole.Had the spacing hole of limiting plate to match with locking plug, in the time that locking plug is return in cross bar, spacing hole carries out spacing to locking plug, avoid the head of locking plug to fall under Action of Gravity Field.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the locking device of the utility model lifting desk chair pin;
Fig. 2 is the structural representation of the locking device of the utility model lifting desk chair pin.
Detailed description of the invention
The utility model relates to a kind of locking device of lifting desk chair pin, as shown in Fig. 1-Fig. 2, comprise the left and right sides montant of a pin or chair pin, between the left and right sides montant of table pin or chair pin, connect cross bar, it is characterized in that: the montant of the described left and right sides comprises outer vertical tube 1 and interior vertical tube 2, cross bar 3 is connected between two outer vertical tubes, cross bar communicates with outer vertical tube, interior vertical tube 2 inserts in outer vertical tube 1, be positioned in cross bar one side and have locking hole 4 at interior vertical tube, in described cross bar 3, check lock lever 5 is set, lower check lock lever 6 and synchromesh gear 7, make synchronous tooth bar 8 one of upper check lock lever, other end is shaped with right locking plug 9, make lower synchronous tooth bar 10 one of lower check lock lever, other end is shaped with left locking plug 11, synchromesh gear 7 is with upper, lower synchronous tooth bar is meshed, right, left locking plug 9, 11 with right, in left both sides, the locking hole 4 of vertical tube 2 matches.By check lock lever 5 is set in cross bar 3, lower check lock lever 6 and synchromesh gear 7, on, lower check lock lever is made respectively near of synchromesh gear 7, lower synchronous tooth bar 8, 10, on, lower synchronous tooth bar is meshed with synchromesh gear, when will be to desk, when chair pin carries out descending operation, rotate counterclockwise synchromesh gear 7, on synchromesh gear drives, lower synchronous tooth bar 8, 10 move inward, on, in lower synchronous rack drives, lower check lock lever 5, 6 the right side, left locking plug 9, 11 exit the locking hole 4 of interior vertical tube 2 and inwardly stretch in cross bar 3, and now interior vertical tube 2 does lifting moving in vertical tube 1 outside, and after interior vertical tube adjusts 2 joints to put in place, the synchromesh gear 7 that turns clockwise, on synchromesh gear drives, lower synchronous tooth bar 8, 10 outwards move, on, in lower synchronous rack drives, lower check lock lever 5, 6 the right side, left locking plug 9, 11 outwards insert in the locking hole 4 of interior vertical tube 2, by the right side, left locking plug blocks locking hole, makes interior vertical tube obtain locking positioning, and locking is stable, reliably, avoid generation to move up and down.The locking device of this programme lifting desk chair pin, only need rotational synchronization gear 7 can make upper and lower check lock lever 5,6 deviate from or to snap in outer vertical tube 1 and the personal hand of interior vertical tube 2, rotatable, easy to operate, snap in rear locking stable, reliable, be conducive to desk, chair pin carries out lift adjustment.Described right locking plug 9 and left locking plug 11 are tip.Described tip is conical tip or triangular pointed.When locking hole is during with right, left locking plug complete matching, tip is more conducive to the right side, left locking plug 9,11 inserts in locking holes 4.Described locking hole 4 is 3-5.Can, according to the difference of desk, chair pin institute adjusting height spacing, the locking hole 4 of varying number be set.In described cross bar 3, lock core 12 is installed, synchromesh gear 7 inserts lock core 12 driven rotary through key, and the synchromesh gear of rotation drives lock tight bar 5 and lower check lock lever 6 to move.On described synchromesh gear 7, be equipped with hexagon prism, synchromesh gear drives hexagon prism rotation through spanner, and the synchromesh gear of rotation drives lock tight bar 5 and lower check lock lever 6 to move.Left limit plate 14 and right limit plate 15 are set in described cross bar 3, have left limit hole 16 in left limit plate, matching with left locking plug 11 in left limit hole, has right limit hole 17 in right limit plate, matches with right locking plug 9 in right limit hole.Had the spacing hole of limiting plate to match with locking plug, in the time that locking plug is return in cross bar 3, spacing hole carries out spacing to locking plug, avoid the head of locking plug to fall under Action of Gravity Field.
Claims (7)
1. the locking device of lifting desk chair pin, comprise the left and right sides montant of a pin or chair pin, between the left and right sides montant of table pin or chair pin, connect cross bar, it is characterized in that: the montant of the described left and right sides comprises outer vertical tube (1) and interior vertical tube (2), cross bar (3) is connected between two outer vertical tubes, cross bar communicates with outer vertical tube, interior vertical tube (2) inserts in outer vertical tube (1), be positioned at and in cross bar one side, have locking hole (4) at interior vertical tube, check lock lever (5) is set in described cross bar (3), lower check lock lever (6) and synchromesh gear (7), make synchronous tooth bar (8) one of upper check lock lever, other end is shaped with right locking plug (9), make lower synchronous tooth bar (10) one of lower check lock lever, other end is shaped with left locking plug (11), synchromesh gear (7) is with upper, lower synchronous tooth bar is meshed, right, left locking plug (9, 11) with right, the locking hole (4) of vertical tube in left both sides (2) matches.
2. the locking device of lifting desk chair pin as claimed in claim 1, is characterized in that: described right locking plug (9) and left locking plug (11) are tip.
3. the locking device of lifting desk chair pin as claimed in claim 2, is characterized in that: described tip is conical tip or triangular pointed.
4. the locking device of lifting desk chair pin as claimed in claim 1, is characterized in that: described locking hole (4) is 3-5.
5. the locking device of lifting desk chair pin as claimed in claim 1, it is characterized in that: lock core (12) is installed in described cross bar (3), synchromesh gear (7) inserts lock core driven rotary through key, and the synchromesh gear of rotation drives lock tight bar (5) and lower check lock lever (6) movement.
6. the locking device of lifting desk chair pin as claimed in claim 1, it is characterized in that: described synchromesh gear is equipped with hexagon prism on (7), synchromesh gear drives hexagon prism rotation through spanner, and the synchromesh gear of rotation drives lock tight bar (5) and lower check lock lever (6) movement.
7. the locking device of lifting desk chair pin as claimed in claim 1, it is characterized in that: left limit plate (14) and right limit plate (15) are set in described cross bar (3), in left limit plate, have left limit hole (16), match with left locking plug (11) in left limit hole, in right limit plate, having right limit hole (17), matches with right locking plug (9) in right limit hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011391.2U CN203709562U (en) | 2014-01-09 | 2014-01-09 | Locking device for lifting desk and chair feet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420011391.2U CN203709562U (en) | 2014-01-09 | 2014-01-09 | Locking device for lifting desk and chair feet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203709562U true CN203709562U (en) | 2014-07-16 |
Family
ID=51148778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420011391.2U Expired - Fee Related CN203709562U (en) | 2014-01-09 | 2014-01-09 | Locking device for lifting desk and chair feet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203709562U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211898A (en) * | 2018-01-02 | 2018-06-29 | 林光波 | A kind of equipment for processing ink |
| CN109363353A (en) * | 2018-11-16 | 2019-02-22 | 张薇 | Adjustable computer desk |
| CN110840086A (en) * | 2019-11-15 | 2020-02-28 | 杨益民 | Press lever type lifting adjusting mechanism of student desk and chair |
-
2014
- 2014-01-09 CN CN201420011391.2U patent/CN203709562U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108211898A (en) * | 2018-01-02 | 2018-06-29 | 林光波 | A kind of equipment for processing ink |
| CN109363353A (en) * | 2018-11-16 | 2019-02-22 | 张薇 | Adjustable computer desk |
| CN110840086A (en) * | 2019-11-15 | 2020-02-28 | 杨益民 | Press lever type lifting adjusting mechanism of student desk and 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: 20140716 Termination date: 20160109 |