CN204812676U - Keyboard tray's one -way locking device that can release fast with adjustable be used for - Google Patents
Keyboard tray's one -way locking device that can release fast with adjustable be used for Download PDFInfo
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- CN204812676U CN204812676U CN201520570505.1U CN201520570505U CN204812676U CN 204812676 U CN204812676 U CN 204812676U CN 201520570505 U CN201520570505 U CN 201520570505U CN 204812676 U CN204812676 U CN 204812676U
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- wedge
- plane
- slide block
- groove
- sliding rail
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Abstract
The utility model provides a keyboard tray's one -way locking device that can release fast with adjustable be used for, includes slip track, slider, slide wedge and spring. The slider is installed on the slip track to can follow the track part slides. The slider is opened has the groove of taking the inclined plane, and a slide wedge and a spring are placed to the inslot, and the inclined plane of slide wedge is parallel with the inclined plane in groove, and the spring lies in between the vertical wall in slide wedge and groove, and laminating with the inclined plane in slider groove mutually in inclined plane that the elasticity of spring made the slide wedge, makes the unable orientation along by the directional spring of slide wedge of slider move, but the slider can move to the opposite direction, form one -way locking. When the pulling or when promoting inclined plane that the slide wedge made inclined plane and the slider groove of slide wedge and separating, the locking is removed, and the slider can be followed the slip track and freely slided. The utility model discloses realize the one -way locking and the quick release of motion for adjustable keyboard tray can fast, conveniently adjust keyboard tray's height or angle.
Description
Technical field
The utility model belongs to the parts of furniture computer desk (containing desk, desk), particularly for the locking device of adjustable keyboard bracket.
Background technology
Along with popularizing of computer, a lot of people needs operating computer for a long time to carry out work or amusement.Normally be positioned on desktop by keyboard and mouse, so not only the height of keyboard and mouse is too high for the user, and cannot regulate height.Long-Time Service can make the muscular tone of wrist, elbow, shoulder, neck position, causes discomfort or even disease.The keyboard frame of adjustable-height on sale on the market and angle, can be adjusted to the pallet of holding keyboard the height making user comfortable at present, but its problem is to use inconvenience.This keyboard frame needs first to unscrew set bolt in use, after being adjusted to correct position, maintains position with hand, while tighten set bolt, cannot realize rapid adjustment, very inconvenient.
Summary of the invention
The utility model, in order to overcome the deficiency of prior art on using function, provides a kind of unidirectional automatic locking apparatus that can discharge fast for adjustable keyboard bracket.
The utility model solves the technical scheme that its technical problem uses: a kind of one-way locking device that can discharge fast for adjustable keyboard bracket, comprises sliding rail, slide block, wedge and spring.Sliding rail has one section of track for skid, and this rail portion can be arc or straight line, and sliding rail also has for sliding rail being fixed to the hole on other device.Wedge and spring are placed in slide block inside, and slide block is divided into two pieces, left and right, combines the rail portion being arranged on sliding rail, and can move along the rail portion of sliding rail.The face that sliding rail contacts with wedge is called orbit plane.Slide block is provided with the hole for merging the two, by penetrating screw or rivet makes two pieces of slide blocks cannot separate along the direction of the orbit plane perpendicular to sliding rail.Two pieces of slide blocks respectively have the identical groove of a shape, and the face of fluting is that slide block is installed to and is parallel to orbit plane after on sliding rail and the nearest face of distance orbit plane.Groove comprises an inclined-plane, is called groove inclined-plane, and this inclined-plane is perpendicular to a plane, and this plane orthogonal in the orbit plane of sliding rail, and overlaps with place, slide block movement direction straight line.When two pieces of slide blocks merge installation, the groove inclined-plane of two slide blocks intersects.One end that on slide block, groove is more shallow is called shallow end, and darker one end is called deep end.
Each placement wedge and a spring in the groove of two slide blocks, wedge can be an entirety, also can be divided into upper and lower two parts.Wedge be one overall time, it comprises two cross one another, when wedge is placed in slide block slot, and a face in these two faces is parallel with groove inclined-plane, and be called wedge inclined-plane, another face is parallel with the orbit plane of sliding rail, is called wedge bottom.When wedge is divided into upper and lower two parts, be called Split type tapered wedge, two parts to be called on wedge block under block and wedge.On wedge, block is with a protuberance, on wedge, under block and wedge, block fastens and is placed into after in the groove of slide block, under on wedge, block can drive wedge, block moves to the deep end direction of slide block, and a face of block is parallel with groove inclined-plane on wedge, be called wedge inclined-plane, under wedge, a face of block is parallel with the orbit plane of sliding rail and do not contact with block on wedge, is called wedge bottom.Wedge is provided with the hole for connecting other device.Spring is between wedge and the deep end of slide block slot, and the elastic force of spring makes together with wedge inclined-plane fits to the groove inclined-plane of slide block, together with wedge bottom fits to the orbit plane of sliding rail.The acute angle of wedge inclined-plane and orbit plane is α, coefficient of friction between wedge inclined-plane and slide block slot inclined-plane is μ 1, coefficient of friction between wedge bottom and orbit plane is μ 2, α, μ 1 and μ 2 meets tan α≤relation of (μ 2-μ 1)/(1+ μ 1 × μ 2).
When slide block is subject to pointing to the power F in deep end direction by shallow end, due to the self-locking action on wedge inclined-plane, the frictional force f between wedge bottom and orbit plane equals F, and wedge is remained static, and slide block also cannot move, and locking device is in the lock state.When slide block is subject to pointing to the power in shallow end direction by deep end, wedge inclined-plane and slide block slot inclined-plane disengage, slide block setting in motion, promote wedge and move together, therefore do not lock the motion in this direction with the spring in time slot.When applying external force and making wedge inclined-plane be separated with slide block slot inclined-plane, latch-release, slide block can be free to slide along the rail portion of sliding rail, realizes the quick release of locking.When the elastic force removing external force rear spring makes wedge inclined-plane and slide block slot inclined-plane recover laminating, fast quick-recovery locking.
The beneficial effects of the utility model are: for adjustable keyboard bracket, can automatically lock the motion that keyboard frame is downward, and can determine by quick-release lock, conveniently regulate keyboard frame, after adjustment, and fast quick-recovery locking.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the exploded view that linear slide track coordinates wedge
Fig. 2 is front view and the A--A profile that linear slide track coordinates wedge
Fig. 3 is the exploded view that linear slide track coordinates Split type tapered wedge
Fig. 4 is front view and the A--A profile that linear slide track coordinates Split type tapered wedge
Fig. 5 is the exploded view that arc sliding track coordinates wedge
Fig. 6 is front view and the A--A profile that arc sliding track coordinates wedge
Fig. 7 is the exploded view that arc sliding track coordinates Split type tapered wedge
Fig. 8 is front view and the A--A profile that arc sliding track coordinates Split type tapered wedge
1. linear slide tracks, 2. slide block 1,3. slide block 2,4. wedge, 5. spring, 6. arc sliding track, 7. slide block 3,8. slide block 4,9. block on wedge, 10. block under wedge in figure.
Detailed description of the invention
In the embodiment shown in Fig. 1 and Fig. 2, sliding rail is form of straight lines, i.e. linear slide track (1).2 planes that linear slide track (1) overlaps perpendicular to cutting plane A-A and with the track bearing of trend of linear slide track (1) are orbit plane.Slide block in the present embodiment is slide block 1 (2) and slide block 2 (3), slide block 1 (2) and slide block 2 (3) combine, in the rail portion of linear slide track (1) is wrapped in, slide block 1 (2) and slide block 2 (3) are provided with the hole for merging the two, by penetrating screw or rivet makes slide block 1 (2) and slide block 2 (3) cannot separate along the direction of the orbit plane perpendicular to linear slide track (1).Slide block 1 (2) and slide block 2 (3) can linearly slide by sliding rail (1).
Slide block 1 (2) respectively has the identical groove of a shape with slide block 2 (3), the face of fluting be slide block 1 (2) and slide block 2 (3) be installed to linear slide track (1) upper after be parallel to orbit plane and the nearest face of distance orbit plane.This groove comprises an inclined-plane, is called groove inclined-plane, and this inclined-plane is perpendicular to cutting plane A-A.When slide block 1 (2) and slide block 2 (3) merge installation, place, two the groove inclined-planes Plane intersects of the two.One end that on slide block, the bottom surface distance orbit plane of groove is nearer is called shallow end, and one end far away apart from orbit plane is called deep end.
Wedge in the present embodiment is wedge (4), each placement wedge (4) and a spring (5) in the groove of slide block 1 (2) and slide block 2 (3).Wedge (4) comprises two and mutually intersects and acutangulate, these two faces intersect the angle of formed acute angles equal groove inclined-plane intersect with orbit plane formed by sharp angle, when wedge (4) is placed in the groove of slide block 1 (2) and slide block 2 (3), a face in these two faces is parallel with groove inclined-plane, be called wedge inclined-plane, another face is parallel with the orbit plane of linear slide track (1), is called wedge bottom.Wedge (4) is provided with the hole for connecting other device.
In the embodiment shown in Fig. 3 and Fig. 4, sliding rail is form of straight lines, i.e. linear slide track (1).2 planes that linear slide track (1) overlaps perpendicular to cutting plane A-A and with the track bearing of trend of linear slide track (1) are orbit plane.Slide block in the present embodiment is slide block 1 (2) and slide block 2 (3), slide block 1 (2) and slide block 2 (3) combine, in the rail portion of linear slide track (1) is wrapped in, slide block 1 (2) and slide block 2 (3) are provided with the hole for merging the two, by penetrating screw or rivet makes slide block 1 (2) and slide block 2 (3) cannot separate along the direction of the orbit plane perpendicular to linear slide track (1).Slide block 1 (2) and slide block 2 (3) can linearly slide by sliding rail (1).
Slide block 1 (2) respectively has the identical groove of a shape with slide block 2 (3), the face of fluting be slide block 1 (2) and slide block 2 (3) be installed to linear slide track (1) upper after be parallel to orbit plane and the nearest face of distance orbit plane.This groove comprises an inclined-plane, is called groove inclined-plane, and this inclined-plane is perpendicular to cutting plane A-A.When slide block 1 (2) and slide block 2 (3) merge installation, place, two groove inclined-planes Plane intersects.One end that on slide block, the bottom surface distance orbit plane of groove is nearer is called shallow end, and one end far away apart from orbit plane is called deep end.
Wedge in the present embodiment is Split type tapered wedge, is divided into block (10) under block on wedge (9) and wedge.Block (9) on each placement wedge in the groove of slide block 1 (2) and slide block 2 (3), block (10) and a spring (5) under a wedge, on wedge, block (9) is with a protuberance, on wedge, under block (9) and wedge, block (10) fastens and is placed into after in the groove of slide block, under on wedge, block (9) can drive wedge, block (10) moves to the direction of deep end, and a face of block (9) is parallel with groove inclined-plane on wedge, be called wedge inclined-plane, under wedge, a face of block (10) is parallel with the orbit plane of linear slide track (1) and do not contact with block on wedge (9), be called wedge bottom.On wedge, under block (9) or wedge, block (10) is provided with the hole for connecting other device.
In the embodiment shown in Fig. 5 and Fig. 6, sliding rail is arc, i.e. arc sliding track (6).2 planes that arc sliding track (6) overlaps perpendicular to cutting plane A-A and with the camber line tangential direction of arc sliding track (6) are orbit plane.Slide block in the present embodiment is slide block 3 (7) and slide block 4 (8), slide block 3 (7) and slide block 4 (8) combine, in the rail portion of arc sliding track (6) is wrapped in, slide block 3 (7) and slide block 4 (8) are provided with the hole for merging the two, by penetrating screw or rivet makes slide block 3 (7) and slide block 4 (8) cannot separate along the direction of the orbit plane perpendicular to arc sliding track (6).Slide block 3 (7) and slide block 4 (8) can the tangential direction of arcuately sliding rail (6) arch section slide.
Slide block 3 (7) respectively has the identical groove of a shape with slide block 4 (8), the face of fluting be slide block 3 (7) and slide block 4 (8) be installed to arc sliding track (6) upper after be parallel to orbit plane and the nearest face of distance orbit plane.This groove comprises an inclined-plane, is called groove inclined-plane, and this inclined-plane is perpendicular to cutting plane A-A.When slide block 3 (7) and slide block 4 (8) merge installation, place, two groove inclined-planes Plane intersects.One end that on slide block, the bottom surface distance orbit plane of groove is nearer is called shallow end, and one end far away apart from orbit plane is called deep end.
Wedge in the present embodiment is wedge (4), each placement wedge (4) and a spring (5) in the groove of slide block 3 (7) and slide block 4 (8).Wedge (4) comprises two and mutually intersects and acutangulate, these two faces intersect the angle of formed acute angles equal groove inclined-plane intersect with orbit plane formed by sharp angle, when wedge (4) is placed in the groove of slide block 3 (7) and slide block 4 (8), a face in these two faces is parallel with groove inclined-plane, be called wedge inclined-plane, another face is parallel with the orbit plane of arc sliding track (6), is called wedge bottom.Wedge (4) is provided with the hole for connecting other device.
In the embodiment shown in Fig. 7 and Fig. 8, sliding rail is arc, i.e. arc sliding track (6).2 planes that arc sliding track (6) overlaps perpendicular to cutting plane A-A and with the camber line tangential direction of arc sliding track (6) are orbit plane.Slide block in the present embodiment is slide block 3 (7) and slide block 4 (8), slide block 3 (7) and slide block 4 (8) combine, in the rail portion of arc sliding track (6) is wrapped in, slide block 3 (7) and slide block 4 (8) are provided with the hole for merging the two, by penetrating screw or rivet makes slide block 3 (7) and slide block 4 (8) cannot separate along the direction of the orbit plane perpendicular to arc sliding track (6).Slide block 3 (7) and slide block 4 (8) can the tangential direction of arcuately sliding rail (6) arch section slide.
Slide block 3 (7) respectively has the identical groove of a shape with slide block 4 (8), the face of fluting be slide block 3 (7) and slide block 4 (8) be installed to arc sliding track (6) upper after be parallel to orbit plane and the nearest face of distance orbit plane.This groove comprises an inclined-plane, is called groove inclined-plane, and this inclined-plane is perpendicular to cutting plane A-A.When slide block 3 (7) and slide block 4 (8) merge installation, place, two groove inclined-planes Plane intersects.One end that on slide block, the bottom surface distance orbit plane of groove is nearer is called shallow end, and one end far away apart from orbit plane is called deep end.
Wedge in the present embodiment is Split type tapered wedge, is divided into block (10) under block on wedge (9) and wedge.Block (9) on each placement wedge in the groove of slide block 3 (7) and slide block 4 (8), block (10) and a spring (5) under a wedge, on wedge, block (9) is with a protuberance, on wedge, under block (9) and wedge, block (10) fastens and is placed into after in the groove of slide block, under on wedge, block (9) can drive wedge, block (10) moves to the direction of deep end, and a face of block (9) is parallel with groove inclined-plane on wedge, be called wedge inclined-plane, under wedge, a face of block (10) is parallel with the orbit plane of arc sliding track (6) and do not contact with block on wedge (9), be called wedge bottom.On wedge, under block (9) or wedge, block (10) is provided with the hole for connecting other device.
In the various embodiments described above, spring (5) is all positioned at block (9) on wedge (4) or the wedge after fastening, under wedge between block (10) and the deep end of slide block slot, the elastic force of spring (5) makes together with wedge inclined-plane fits to groove inclined-plane, together with wedge bottom fits to orbit plane.
When slide block is subject to pointing to the power F in deep end direction by shallow end, due to the self-locking action on wedge inclined-plane, the frictional force f between wedge bottom and orbit plane equals F, and wedge is remained static, and slide block also cannot move, and locking device is in the lock state.When slide block is subject to pointing to the power in shallow end direction by deep end, wedge inclined-plane and groove inclined-plane disengage, slide block setting in motion, promote wedge and move together, therefore do not lock the motion in this direction with the spring (5) in time slot.
When applying external force and making wedge inclined-plane be separated with groove inclined-plane, latch-release, slide block can be free to slide along sliding rail, realizes the quick release of locking.The elastic force removing external force rear spring (5) makes wedge inclined-plane and groove inclined-plane recover laminating, locks fast quick-recovery.
Claims (3)
1. for the one-way locking device that can discharge fast of adjustable keyboard bracket, it is characterized in that: comprise sliding rail, slide block, wedge and spring; Sliding rail has one section of track for skid; Wedge and spring are placed in slide block inside, and the face that sliding rail contacts with wedge is called orbit plane; Slide block is divided into two pieces, left and right, combines the rail portion being arranged on sliding rail, and can move along the rail portion of sliding rail; Slide block is provided with the hole for merging the two, by penetrating screw or rivet makes two pieces of slide blocks cannot separate along the direction of the orbit plane perpendicular to sliding rail; Two pieces of slide blocks respectively have the identical groove of a shape, and the face of fluting is that slide block is installed to and is parallel to orbit plane after on sliding rail and the nearest face of distance orbit plane; Groove comprises an inclined-plane, is called groove inclined-plane, and this inclined-plane is perpendicular to a plane, and this plane orthogonal in the orbit plane of sliding rail, and overlaps with place, slide block movement direction straight line; When two pieces of slide blocks merge installation, the groove inclined-plane of two slide blocks intersects; One end that on slide block, groove is more shallow is called shallow end, and darker one end is called deep end; Each placement wedge and a spring in the groove of two slide blocks, wedge can be an entirety, also can be divided into upper and lower two parts; Wedge be one overall time, it comprises two cross one another, when wedge is placed in slide block slot, and a face in these two faces is parallel with groove inclined-plane, and be called wedge inclined-plane, another face is parallel with the orbit plane of sliding rail, is called wedge bottom; When wedge is divided into upper and lower two parts, be called Split type tapered wedge, two parts to be called on wedge block under block and wedge; On wedge, block is with a protuberance, and on wedge, a face of block is parallel with groove inclined-plane, is called wedge inclined-plane, and under wedge, a face of block is parallel with the orbit plane of sliding rail and do not contact with block on wedge, is called wedge bottom; The acute angle of wedge inclined-plane and orbit plane is α, coefficient of friction between wedge inclined-plane and slide block slot inclined-plane is μ 1, coefficient of friction between wedge bottom and orbit plane is μ 2, α, μ 1 and μ 2 meets tan α≤relation of (μ 2-μ 1)/(1+ μ 1 × μ 2); Spring is between wedge and the deep end of slide block slot.
2. the one-way locking device that can discharge fast for adjustable keyboard bracket according to claim 1, it is characterized in that: the rail portion of sliding rail can be arc or straight line that sliding rail also has for sliding rail being fixed to the hole on other device.
3. the one-way locking device that can discharge fast for adjustable keyboard bracket according to claim 1, is characterized in that: wedge is provided with the hole for connecting other device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520570505.1U CN204812676U (en) | 2015-08-03 | 2015-08-03 | Keyboard tray's one -way locking device that can release fast with adjustable be used for |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520570505.1U CN204812676U (en) | 2015-08-03 | 2015-08-03 | Keyboard tray's one -way locking device that can release fast with adjustable be used for |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204812676U true CN204812676U (en) | 2015-12-02 |
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ID=54670337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520570505.1U Expired - Fee Related CN204812676U (en) | 2015-08-03 | 2015-08-03 | Keyboard tray's one -way locking device that can release fast with adjustable be used for |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204812676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105011561A (en) * | 2015-08-03 | 2015-11-04 | 贾宁 | Rapid-releasing one-way locking device for adjustable keyboard rack |
-
2015
- 2015-08-03 CN CN201520570505.1U patent/CN204812676U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105011561A (en) * | 2015-08-03 | 2015-11-04 | 贾宁 | Rapid-releasing one-way locking device for adjustable keyboard rack |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180803 |