CN2140654Y - Adjustable carrier for drawing-board - Google Patents
Adjustable carrier for drawing-board Download PDFInfo
- Publication number
- CN2140654Y CN2140654Y CN 91230970 CN91230970U CN2140654Y CN 2140654 Y CN2140654 Y CN 2140654Y CN 91230970 CN91230970 CN 91230970 CN 91230970 U CN91230970 U CN 91230970U CN 2140654 Y CN2140654 Y CN 2140654Y
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- China
- Prior art keywords
- right sides
- adjustable shelf
- thread piece
- fixed mount
- thread
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- 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 - Lifetime
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Abstract
The utility model relates to an adjustable supporting frame for a drawing board. Supporting members for connecting a movable frame and a fixed frame are provided with screw thread blocks which can be separated and combined, and the screw threads on both sides of the movable frame are hugged and are matched with an operating rod, a sliding block and a control member to form an operating device so that in lifting changes, the drawing board has strong locking and releasing ability. A winding elastic return rod is arranged between the movable frame and the fixed frame and by utilizing the shifting changes of a supporting rod and the movable frame, the potential energy of the lifting changes of the drawing board can be self-changed for winding deforming energy in order to make the self-gravity of the drawing board and the supporting frame in balance so that the drawing board is changed and adjusted with the advantages of labor saving, lightness and stability. An adjustable elastic fixing device arranged in a cavity body of a frame of the fixed frame has the advantages of flexible length, compact appearance and convenient and reliable fixation.
Description
The utility model provides a kind of adjustable drawing support, relates to drawing support technology field.
The present comparatively desk-top drawing support of extensive use, usually constitute by critical pieces such as adjustable shelf, strut, fixed mount, manipulation device, bascule and bracket fixing devices, as shown in Figure 1, shelve the rise and fall conversion and the adjusting of the adjustable shelf of chart board, adopt screw mandrel one nut body structure, screw mandrel is fixed in the middle of the adjustable shelf, and shake the hand and be connected the below, but nut body relative fixed frame swings up and down, there is strut to link between adjustable shelf and the fixed mount in addition, by the rotary screw rod of shaking the hand, the chart board of regulating on the adjustable shelf rises and falls.When chart board rose, length L shortened, adjustable shelf with fixed mount angle α become big, opposite length L is elongated, angle [alpha] diminishes, chart board falls, near fixed mount, therefore this drawing support has following deficiency in actual applications until chart board:
1. because the self-gravity action of chart board and support, chart board when extreme lower position transforms to the extreme higher position, will rotate tens of circles of shaking the hand arduously, and the chart board rate of climb is slow.
2. the fixture of this support, non-packed are screwed on the work edge of table in the outside of support, and its outward appearance is coarse, are awkward, and the touching hook clothing causes chart board displacement and unexpected trouble often.
The purpose of this utility model is to overcome above-mentioned drawing support and rotates to shake the hand and make rise effort and speed of chart board slow, with and the unsafe deficiency of fixture:
1. adopt in the supporting member that connects adjustable shelf and fixed mount, what slip was set can divide the thread that can close piece, and the thread on the obvolvent adjustable shelf framework lateral surface is equipped with the new manipulation device of control stick, slide block and the control piece composition of manipulation thread piece;
2. being provided with one between adjustable shelf and fixed mount can utilize strut and adjustable shelf relative displacement to change around the resilient release link of song, laborsaving in realization chart board conversion and the adjustment process, lightly requirement stably.
3. will expose fixed mount, change adjustable flexible L shaped fixed hook in the cavity body that is contained in the fixed mount framework in the support outside.Make the support outward appearance succinct, fixing back is safe and reliable.
For achieving the above object, the utility model provides the technical pattern of following new manipulation device, self-balance device and fixture:
The configuration diagram of a kind of new manipulation device with the screw thread on thread piece obvolvent adjustable shelf framework two lateral surfaces that accompanying drawing 2 provides for the utility model, it is by tight end screw 1, little spring 2, left and right sides supporting member 3, thread piece 4, trigonal slider 5, control lever 6, control stick 7, left and right sides bearing pin 8, release link 9, adjustable shelf 10 and fixed mount 12, standing screw 23 is formed.
A kind of self-balance device that accompanying drawing 3 provides for the utility model, it is made up of release link 9, strut 11, split pin 18 and connecting plate 17.
A kind of adjustable elastic fixing device of the present utility model also is provided in the accompanying drawing 2 and 3, and it is by fixed mount 12, fixed hook 13, and round nut 14, spring 15, end cap 16 form.
1. manipulation device:
As shown in Figure 2, one of key that the utility model provides, be that described manipulation device is by the left and right sides supporting member 3 that connects adjustable shelf 10 and fixed mount 12, be configured in the left and right sides thread piece 4 in the supporting member 3, with the thread on two lateral surfaces about adjustable shelf by 4 obvolvents of thread piece, be equipped with that control stick 7, slide block 5 and the control lever 6 of handling thread piece 4 be combined into, wherein:
A. described left and right sides supporting member 3, and the framework lower end with adjustable shelf about 10 two sides is slidingly matched respectively, consist of with the frame ends of fixed mount 12 the insides to be rotationally connected, at adjustable shelf 10 Be shaped with thread on the lateral surface of the framework lower semisection of two sides, and the left and right sides thread piece 4 with described thread obvolvent is arranged;
B. described left and right sides thread piece 4 two cylindrical little springs 2 adjacent with it are contained in respectively to be in the groove of left and right sides supporting member 3 and are slidingly matched, and two ends of left thread piece 4 are fastened on respectively the left end that cover has two one control levers 7 of described little spring 2. The right that two ends of the right thread piece 4 in right support part 3 grooves are enclosed within respectively described control stick 7 is and is slidingly matched;
C. have a trigonal slider 5 adjacent on the right side of right thread piece 4, slide block 5 connects with same control lever of hinging manner 6 again.The right-hand member of two one control levers 7, the groove by the slide block two sides are and are slidingly matched, and fixedly connected with the two ends of the bearing pin on the control lever 68, slide block 5 can swing up and down along the control stick move left and right, and control lever 6 can swing up and down around bearing pin;
2. self-balance device:
As shown in Figure 3, two of the key that the utility model provides, be described self-balance device, it is flexible release link 9 by a deflection, it is that a circular hole of two ends and two strut 11 upper ends is and is slidingly matched, and its two ends that stretch out the strut hole are located with split pin, and there is a connecting plate 17 at its middle part, its two ends connect the framework of release link 9 and adjustable shelf 10 outsides respectively, and formation is slidingly matched.In whisker boom 11 upper ends a circular hole is arranged respectively, connect adjustable shelfs by positioning screw 24 and constitute and be slidingly matched, there is a circular hole lower end of whisker boom 11, and cover hangs over to constitute on the standing screw 23 of left and right sides framework of fixed mount 12 and is slidingly connected respectively.
3. bracket fixing device:
Shown in accompanying drawing 2 and 3, three of the key that the utility model provides, be that described fixture is a kind of flexible adjustable fixator, it is accommodated in the cavity body of framework outer end, fixed mount 12 left and right sides, a cylindrical end cap 16 that centre bore is arranged that is fixed on the frame end inwall is arranged, the inner end of end cap 16 and a spring join, and spring 15 other ends join with a round nut 14 again.It processes a threaded end L shaped fixed hook 13, runs through end cap 16 centre bores and spring 15, the screwed hole of precession round nut 14.
Below be described in detail the embodiment of three kinds of new equipments that the utility model provides:
Drawing support by the utility model provides comprises adjustable shelf, strut, fixed mount, manipulation device, bascule and fixture, and is wherein said:
1. manipulation device:
Junction at adjustable shelf 10 and fixed mount 12 is furnished with described manipulation device, it is to be combined into by the parts shown in the accompanying drawing 2: adjustable shelf 10 and fixed mount 12 all are the rectangular frames that is welded into circular common seamless steel pipe, about two supporting members 3 constitute with the framework lower end of adjustable shelf about 10 two sides respectively and be slidingly connected, constitute with the frame ends of fixed mount 12 the insides and be rotationally connected.On the face of cylinder, the outside of the framework lower semisection of adjustable shelf 10 2 sides, be shaped on the part thread of metric system, described thread, it only is four/part at periphery, it is not the continuous screw thread of formation on the whole circumference face, but on the face of cylinder, two outsides part thread of processing one segment length 350mm * φ 7mm, what match with described thread is to be processed with the thread piece 4 that matches, a pair of thread piece 4 that matches with thread respectively obvolvents about on the thread of two sides.
Two ends at described left and right sides thread piece 4 are processed with M5mm screwed hole or φ 5mm circular hole, adjacent with it have two cylindrical little spring 2 L10 ' mm * φ 7mm, and thread piece 4 and little spring 2 are contained in respectively to constitute in the groove of left and right sides supporting member 3 and are slidingly matched.The screwed hole of left side thread piece 4 is fastened on the screw thread place of control stick 7 left ends that are with above-mentioned little spring 2 respectively.The circular hole of two ends of the right thread piece in right support part 3 grooves, the right formation that is enclosed within described two one control levers 7 respectively is slidingly matched.
Have a trigonal slider 5 adjacent on the right side of right thread piece 4, slide block 5 connects with same control lever of hinging manner 6 again.Slide block 5 and control lever 6 all are processed into nylon.The right-hand member of two one control levers made from φ 6mm light round iron bar, groove by 5 two sides of slide block is and is slidingly matched, and fixedly connected with the two ends of the bearing pin 8 in the middle of the control lever 6, slide block 5 can be along control stick 7 move left and right, swing up and down, control lever 6 can swing up and down around bearing pin 8.
The front and back two side faces of above-mentioned trigonal slider 5 is processed with * groove of shape, two one control levers 7 are contained in the groove of two sides, because the Z axial freedom of slide block 5 is subjected to respectively the restriction at two one control levers 7 of two side clampings, only can axially swing up and down along the X axis move left and right with around Z.
When so the manipulation device of being made up of above-mentioned thread piece 4, supporting member 3, control stick 7, slide block 5 and control lever 6 uses; as long as the moving control lever 6 of plate; just can make slide block swing displacement; thereby the length of control right-hand member control stick 7 changes; the thread piece 4 of two sides about driving on the control stick; thread on the travelling carriage two side faces closes up or separately, realizes the status requirement that rises and falls of locking and control adjustable shelf.
Meanwhile, the left and right sides supporting member 3 that connects adjustable shelf 10 and fixed mount 12 rotates around fixed mount 12, and the slippage up and down in described supporting member 3 of two body side frames of adjustable shelf 10, so constitute the variation of rising and falling up and down of adjustable shelf 10.
2. self-balance device:
Self-balance device as shown in Figure 3, it is the resilient release link 9 by a deflection between adjustable shelf 10 and fixed mount 12, with long 600mm * φ 12mm, 65Si
2The Mn spring steel forms through hot-working.Its two ends respectively with about the circular hole of each strut 11 1 end processing becomes to be slidingly connected, its two ends that stretch out strut 11 are located with split pin 18.Place in the middle of the release link 9, the connecting plate 17 that has a punching out to become, two ends of connecting plate 17 respectively process a circular hole, and an one circle hole sleeve becomes to be slidingly connected in the middle of the pipe framework of adjustable shelf 10 outsides, and the circle hole sleeve of the other end also becomes to be slidingly connected in the middle of release link 9.
In the upper end of whisker boom 11 circular hole is arranged respectively, it connects adjustable shelf 10 in the inboard of the connecting hole of release link 9 and strut 11 by positioning screw 24, and formation is slidingly matched.Respectively process a circular hole in the lower end of whisker boom 11, be slidingly connected for 23 one-tenth with the positioning screw that is fixed on the fixed mount respectively, and locate by nut.Left and right sides standing screw 23M8mm * long 35mm on the fixed mount 12 is positioned at 1/3rd places of two body side frames of fixed mount.
Balanced controls of Zu Chenging thus, when drawing board was in the dead angle, the deadweight effect of chart board more correspondingly needed the deflection deformation amount of release link to increase synchronously, with this Gravity changer of balance.The utility model utilizes in this potential energy change procedure just, and the characteristic that certain some distance enlarges synchronously on certain point and the adjustable shelf on the strut converts the falling gravity potential energy to the deflection energy, reaches the reset purpose of balance deadweight of flexible member.
3. bracket fixing device:
Bracket fixing device as shown in Figure 3, it is accommodated in respectively in the round seamless steel pipe of framework outer end, fixed mount 12 left and right sides, it is 16mm that an external diameter is arranged in the framework port, center-hole diameter is the cylindrical end cap of 6.5mm, the compression spring 15 of the inner end of end cap 16 and a long 75mm * middle footpath 12mm joins, and the other end of spring 15 joins with a round nut 14 long 8mm * diameter 14mm again.The light circle of a long 200mm * φ 6mm, one end is become L shaped fixed hook 13, its other end is processed with one section screw thread of long 100mm, with fixed hook 13 threaded ends, run through end cap 16 centre bores and spring 15, the screwed hole of precession round nut is so form described adjustable elastic fixing device.When the rotation fixed hook, the length that can regulate fixed hook with pulling out L shaped fixed hook, can be colluded it on the workbench edge.Corresponding with two fixtures about fixed mount framework outer end, also have two with the identical L shaped fixed hook of above-mentioned fixed hook, be positioned near the inner end of fixing left and right sides framework, it only is that one one end is processed threaded fixed hook, it is pierced in the hole of framework, with corresponding nut 25 and packing ring location, but fixed hook can rotate in frame aperture.
So far three new equipments are finished on the drawing support that provides of the utility model.
By aforementioned three new equipments that the utility model provides, be assembled into the drawing support after, can realize each function effectively, functional.With the thread of thread piece obvolvent fixed mount framework two sides, be equipped with the operating mechanism that control stick, slide block and control piece are formed, can be reliably fixedly chart board handle light and flexible freely in any angle; Self-balance device from start to finish balance chart board angle constantly change from the gravity state, the operator is laborsaving steadily light and handy in chart board conversion and adjustment process; And adjustable elastic fixing device, outward appearance is succinct, and is fixing reliable convenient.
Claims (3)
1, a kind of adjustable drawing support, comprise adjustable shelf, strut, fixed mount, manipulation device, bascule and fixture, it is characterized in that described manipulation device is by the left and right sides supporting member 3 that connects adjustable shelf 10 and fixed mount 12, be configured in the left and right sides thread piece 4 in the supporting member 3, with the thread on the framework lateral surface of the left and right sides of adjustable shelf by 4 obvolvents of thread piece, be equipped with that the control stick 7, slide block 5 and the control lever 6 that connect thread piece 4 be combined into, wherein:
A. described left and right sides supporting member 3 constitutes with the framework lower end of two sides about adjustable shelf 10 respectively and is slidingly matched, and constitutes with the frame ends of fixed mount 12 the insides to be rotationally connected.On the lateral surface of adjustable shelf 10 left and right sides framework lower semisections, thread is arranged; And the left and right sides thread piece 4 with described thread obvolvent is arranged;
B. described left and right sides thread piece 4, two the cylindrical little springs 2 adjacent with it are contained in respectively to constitute in the groove of left and right sides supporting member 3 and are slidingly matched, two ends of left side thread piece 4 are fastened on the left end of two one control levers 7 that are with described little spring 2 respectively, and the right formation that two ends of the right thread piece 4 in right support part 3 grooves are enclosed within described control stick 7 respectively is slidingly matched;
C. there is a trigonal slider 5 adjacent on the right side of right thread piece 4, slide block 5 connects with same control lever of hinging manner 6 again, the right-hand member of two one control levers 7 is slidingly matched by the groove formation of the two sides of described slide block 5, slide block 5 is fixedly connected with the two ends of the bearing pin on the control lever 68, slide block 5 can be along control stick 7 move left and right, swing up and down, control lever 6 can swing up and down around bearing pin 8.
2, by the described drawing support of claim 1, it is characterized in that described bascule is the flexible release link 9 by a deflection, two ends of release link 9 with about the circular hole of upper end of two struts 11 be and be slidingly matched, its two ends that stretch out the strut hole are located by split pin, there is a connecting plate 17 at its middle part, the two ends of connecting plate 17 connect the framework of release link 9 and adjustable shelf 10 outsides respectively, formation is slidingly matched, in the upper end of whisker boom 11 circular hole is arranged respectively, connect adjustable shelf 10 by positioning screw 24, formation is slidingly matched, the lower end of whisker boom 11 respectively has a circular hole to overlap respectively on the standing screw that hangs over fixed mount 12 left and right sides frameworks, and formation is slidingly connected.
3, by the described drawing support of claim 1, it is characterized in that described fixture is a kind of flexible adjustable fixator, it is accommodated in the cavity body of framework outer end, fixed mount 12 left and right sides, a cylindrical end cap 16 that centre bore is arranged that is fixed on the frame end inwall is arranged, the inner end of end cap 16 and a spring 15 join, the other end of spring 15 joins with a round nut 14 again, a L shaped fixed hook 13, it processes a threaded end, run through end cap 16 centre bores and spring 15, the screwed hole of precession round nut 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230970 CN2140654Y (en) | 1991-11-27 | 1991-11-27 | Adjustable carrier for drawing-board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91230970 CN2140654Y (en) | 1991-11-27 | 1991-11-27 | Adjustable carrier for drawing-board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2140654Y true CN2140654Y (en) | 1993-08-25 |
Family
ID=33760791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91230970 Expired - Lifetime CN2140654Y (en) | 1991-11-27 | 1991-11-27 | Adjustable carrier for drawing-board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2140654Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757785A (en) * | 2015-04-27 | 2015-07-08 | 广西大学 | Adjustable drawing board frame |
| CN110973834A (en) * | 2019-12-23 | 2020-04-10 | 九江学院 | Multifunctional drawing table for indoor design of environment art design professional building |
-
1991
- 1991-11-27 CN CN 91230970 patent/CN2140654Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104757785A (en) * | 2015-04-27 | 2015-07-08 | 广西大学 | Adjustable drawing board frame |
| CN110973834A (en) * | 2019-12-23 | 2020-04-10 | 九江学院 | Multifunctional drawing table for indoor design of environment art design professional building |
| CN110973834B (en) * | 2019-12-23 | 2021-05-18 | 九江学院 | Multifunctional drawing table for indoor design of environment art design professional building |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |