CN112315207A - Changeable teaching desk of desktop area - Google Patents
Changeable teaching desk of desktop area Download PDFInfo
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- CN112315207A CN112315207A CN202011293320.2A CN202011293320A CN112315207A CN 112315207 A CN112315207 A CN 112315207A CN 202011293320 A CN202011293320 A CN 202011293320A CN 112315207 A CN112315207 A CN 112315207A
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- 230000007246 mechanism Effects 0.000 claims description 40
- 230000000149 penetrating effect Effects 0.000 claims description 8
- 238000009987 spinning Methods 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 7
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B41/00—School desks or tables
- A47B41/02—Adjustable, inclinable, sliding or foldable desks tops
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B1/00—Extensible tables
- A47B1/04—Extensible tables with supplementary leaves or drop leaves arranged at the periphery
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B13/00—Details of tables or desks
- A47B13/003—Connecting table tops to underframes
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- Tables And Desks Characterized By Structural Shape (AREA)
- Toys (AREA)
Abstract
The invention relates to a teaching desk, in particular to a teaching desk with a variable desktop area. The technical problem is how to design a teaching desk with a changeable desktop area, which can change the book placing area, place more books and is more convenient. A teaching desk with a variable desktop area comprises: the frame body, the symmetrical rigid coupling of one side has supporting plates outside the said frame body; the table plate is fixedly connected to one side, far away from the support plate, of the outer side of the frame body. According to the invention, the pull wire is wound up by the winding wheel by pulling the knob to move forwards to be separated from the frame body and then twisting the knob to rotate reversely, the pull wire is wound up to drive the u-shaped guide plate to move outwards, the u-shaped guide plate drives the n-shaped push plate to move outwards, the u-shaped push plate drives the swing plate to swing upwards by ninety degrees, the knob is loosened to reset, a book can be placed on the swing plate, and thus, more books can be placed.
Description
Technical Field
The invention relates to a teaching desk, in particular to a teaching desk with a variable desktop area.
Background
The student has all placed a large amount of books on the teaching desk during at class to make things convenient for the follow-up study to different courses, at present, because in the learning process, books can be continuous to increase, and the area of teaching desk is fixed, leads to partial books can not place, influences study, and through placing books on other desks, leads to the student to need to remove and take up books, and is more troublesome.
Therefore, it is necessary to design and develop a teaching desk with a changeable desktop area, which can change the book placement area, place more books, and is more convenient.
Disclosure of Invention
In order to overcome the defects that the area of a teaching desk is fixed, so that part of books cannot be placed, and the books are placed on other desks, so that students need to move to pick up the books, which is troublesome, the invention aims to provide the teaching desk with the changeable desktop area, which can change the book placing area, place more books and is convenient.
The technical scheme is as follows: a teaching desk with a variable desktop area comprises: the frame body, the symmetrical rigid coupling of one side has supporting plates outside the said frame body; the table plate is fixedly connected to one side, far away from the support plate, of the outer side of the frame body; the L-shaped plate is fixedly connected between one side of the table plate facing the support plate and the inner side of the frame in the circumferential direction; the swinging plate is symmetrically and rotatably connected between the two sides of the table plate; the material pulling mechanism is arranged on the frame body and used for providing power; and the material pushing mechanism is arranged on one side in the L-shaped plate, is matched with the frame body and the oscillating plate, and is fixedly connected with the material pulling mechanism and used for driving the oscillating plate to oscillate.
As an improvement of the above scheme, the material pulling mechanism comprises: the wire guide wheels are fixedly connected to two sides outside the frame body at intervals, and the number of the wire guide wheels on each side is four; the rotating shaft is rotatably connected to one side, close to one of the support plates, of the outer side of the frame body, and one end of the rotating shaft is octagonal; the knob is slidably sleeved at the octagonal end part of the rotating shaft and is in contact fit with the frame body; the first spring is connected between one side in the knob and the end part of the rotating shaft; the symmetrical fixed sleeves of the reels are arranged on the rotating shaft, two pull wires are wound on the reels, every two pull wires are wound on each side of the rotating shaft respectively, and the reels penetrate through the frame body and are fixedly connected with the material pushing mechanism.
As an improvement of the scheme, the material pushing mechanism comprises: the u-shaped push plate is symmetrically and slidably arranged on one side in the L-shaped plate, and the end part of the u-shaped push plate penetrates through the frame body to be matched with the swinging plate; the u-shaped guide plate is slidably placed on one side of the u-shaped push plate, and one inner side of the u-shaped guide plate is fixedly connected with the tail end of the stay wire.
As the improvement of above-mentioned scheme, still including stop gear, stop gear is including: the swinging clamping plates are rotatably connected to two sides inside the u-shaped push plate; the gear is fixedly sleeved in the middle of one side of the swinging clamping plate far away from the swinging plate; the tooth blocks are fixedly connected to two sides in the u-shaped guide plate close to the gear at intervals and meshed with the gear; the special-shaped grooves are spaced on one side of the table plate facing the support plate, and the number of the special-shaped grooves is four; the guide block is slidably placed in the special-shaped groove, and one end of the guide block penetrates through the u-shaped push plate to be in contact fit with the u-shaped guide plate; the U-shaped plate is symmetrically and fixedly connected to the middle of one side of the swinging plate facing the frame body and matched with the swinging clamping plate.
As an improvement of the above scheme, the device further comprises a driving mechanism, and the driving mechanism comprises: the guide sleeve is fixedly connected to one side of one of the support plates; the L-shaped ratchet strip is slidably connected in the guide sleeve in a penetrating manner; the ratchet wheel is fixedly sleeved at the end part of the rotating shaft far away from the knob and is meshed with the L-shaped ratchet strip; the movable strip is slidably connected between two sides of the support plate close to the L-shaped ratchet strip in a penetrating manner, and one end of the movable strip is fixedly connected with the end part of the L-shaped ratchet strip; the second springs are fixedly connected between one side of the movable strip away from the frame body and the interior of the support plate at intervals, and the number of the second springs is three; the pedal is rotatably connected to one side of the movable strip far away from the second spring; the n-type clamping plate is slidably connected to one side of the support plate close to the pedal in a penetrating manner and is in contact fit with the pedal; and the third spring is symmetrically connected between one side of the inside of the n-shaped clamping plate facing the movable strip and one side of the support plate.
As an improvement of the above scheme, the method further comprises the following steps: the movable clamping plate is vertically and slidably connected to the middle part of the swinging plate in a penetrating manner; the L-shaped hook plate is slidably arranged at the end part of the movable clamping plate far away from the table plate; the fourth springs are fixedly connected between one side, close to the rotating shaft, of the inner side of the L-shaped hook plate and one side of the movable clamping plate at intervals; the first clamping groove is formed in one side, facing the frame body and far away from the movable clamping plate of the table plate, of the first clamping groove and is matched with the L-shaped hook plate; and the second clamping grooves are formed in two sides of the table plate and matched with the movable clamping plates.
As an improvement of the above scheme, the method further comprises the following steps: the sleeve is symmetrically and fixedly connected to one side of the swinging plate facing the frame body and far away from the table plate; the second strong magnet is slidably placed in the sleeve; the fifth spring is connected between the end part of the second strong magnet far away from the frame body and one side in the sleeve; the symmetrical fixed connection of the first strong magnet is close to the swinging plate and far away from the table plate on the two sides outside the frame body, and the first strong magnet is in contact fit with the second strong magnet.
As an improvement of the scheme, the outer circumference of the knob is made of rubber, so that the friction force between the knob and the hand is increased.
The invention has the following advantages:
1. move forward through the pulling knob and break away from with the framework, twist the knob reversal again, just also make the reel will act as go-between and roll up, the line of acting as go-between is rolled up and is driven u type baffle and outwards move, and u type baffle drives n type push pedal and outwards moves, and u type push pedal then drives swing board and upwards swings ninety degrees, loosens the knob and resets, can place books on swing board, so, can make more books place.
2. Through stop gear's effect, can be to the further spacing of swing board, so, can make the more firm book of swing board place.
3. Through the effect of actuating mechanism, can make the swing board upwards swing, so, make things convenient for operating personnel more and make the reel wind the acting as go-between.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a schematic view of a first partial body structure according to the present invention.
FIG. 3 is a schematic view of a second partial body structure according to the present invention.
Fig. 4 is a perspective view of a third embodiment of the present invention.
Fig. 5 is a perspective view of a fourth embodiment of the present invention.
Fig. 6 is an enlarged schematic view of part a of the present invention.
Fig. 7 is an enlarged view of part B of the present invention.
Fig. 8 is an enlarged schematic view of part C of the present invention.
Fig. 9 is an enlarged view of the portion D of the present invention.
Fig. 10 is an enlarged schematic view of part E of the present invention.
Number designation in the figures: 1-frame body, 2-support plate, 3-L type plate, 4-table plate, 5-swinging plate, 6-pulling mechanism, 61-knob, 62-rotating shaft, 63-reel, 64-wire guide wheel, 65-wire pulling, 66-first spring, 7-pushing mechanism, 71-u type push plate, 72-u type guide plate, 8-limiting mechanism, 81-tooth block, 82-swinging clamping plate, 83-gear, 84-special-shaped groove, 85-guide block, 86-u type plate, 9-driving mechanism, 91-movable bar, 92-second spring, 93-pedal, 94-n type clamping plate, 95-guide sleeve, 96-L type ratchet bar, 97-ratchet wheel, 98-third spring and 10-movable clamping plate, 11-L-shaped hook plate, 12-first clamping groove, 13-fourth spring, 14-second clamping groove, 15-first strong magnet, 16-sleeve, 17-second strong magnet and 18-fifth spring.
Detailed Description
The following further describes the technical solution with reference to specific embodiments, and it should be noted that: the words upper, lower, left, right, and the like used herein to indicate orientation are merely for the location of the illustrated structure in the corresponding figures. The serial numbers of the parts are themselves numbered herein, for example: first, second, etc. are used solely to distinguish one from another as to objects described herein, and do not have any sequential or technical meaning. The application states that: the connection and coupling, unless otherwise indicated, include both direct and indirect connections.
Example 1
A teaching desk with a variable desktop area is shown in figures 1, 2, 4 and 6 and comprises a frame body 1, support plates 2, L-shaped plates 3, a table plate 4, a swinging plate 5, a material pulling mechanism 6 and a material pushing mechanism 7, wherein the table plate 4 is fixedly connected to the top of the frame body 1, the swinging plate 5 is rotatably connected between the left side of the front side face and the right side of the rear side face of the table plate 4, the L-shaped plates 3 are fixedly connected between the upper circumferential direction of the inner side face of the frame body 1 and the front side of the bottom of the table plate 4, the material pushing mechanism 7 is arranged on the L-shaped plates 3 and matched with the swinging plate 5, the support plates 2 are fixedly connected to the left side and the right side of the outer top of the frame.
The material pulling mechanism 6 comprises a knob 61, a rotating shaft 62, wire guiding wheels 63, wire guiding wheels 64, pulling wires 65 and a first spring 66, four wire guiding wheels 64 are uniformly installed on the left side surface and the right side surface outside the frame body 1 at intervals, the rotating shaft 62 is rotatably connected to the left side of the outer bottom of the frame body 1, the front end of the rotating shaft 62 is octagonal, the wire guiding wheels 63 are fixedly connected to the circumferential directions of the front side and the rear side of the rotating shaft 62, two pulling wires 65 are wound on the wire guiding wheels 63, the tail end of one of the pulling wires 65 on the two wire guiding wheels 63 bypasses the left wire guiding wheel 64 and penetrates through the frame body 1 to be fixedly connected with the material pushing mechanism 7, the tail end of the other pulling wire 65 bypasses the right wire guiding wheel 64 to penetrate through the frame body 1 to be fixedly connected with the material pushing mechanism 7, the knob 61 is sleeved on the front.
The pushing mechanism 7 comprises a u-shaped push plate 71 and a u-shaped guide plate 72, the u-shaped push plate 71 is arranged on the left side and the right side of the top in the L-shaped plate 3 in a sliding mode, the u-shaped guide plate 72 is arranged on the right portion of the u-shaped push plate 71 on the left side and the left portion of the u-shaped push plate 71 in a sliding mode in a penetrating mode, the tail end of the pull wire 65 penetrates through the u-shaped push plate 71 and is fixedly connected with the inner side face of the u-shaped guide plate 72.
Firstly, the student moves the bench and sits at table 4 front side, when not placing books on table 4, the student can twist and draw material mechanism 6 to operate, draw material mechanism 6 to operate and drive pushing equipment 7 and outwards remove, pushing equipment 7 outwards removes and drives swing board 5 and upwards swings, swing board 5 upwards swings to ninety degrees after, stop twisting and draw material mechanism 6, pushing equipment 7 stops the operation, pushing equipment 7 then plays the supporting role to swing board 5, the student can place books on swing board 5, so, make the area of placing books bigger, can place more books. When the swinging plate 5 is not needed to be used, the twisting material pulling mechanism 6 operates and resets, and then the material pushing mechanism 7 is pushed to move inwards and reset, so that the swinging plate 5 also swings downwards and resets.
When more books need to be placed, the student pulls the knob 61 to move forward, the first spring 66 is stretched, when the knob 61 moves forward and is separated from the frame body 1, the pulling of the knob 61 is stopped, the twisting knob 61 is reversed, the knob 61 is reversed to drive the rotating shaft 62 to reverse, the rotating shaft 62 is reversed to drive the reel 63 to reverse, the reel 63 is reversed to roll up the pull wire 65, the pull wire 65 is rolled up to drive the pushing mechanism 7 to move outward through the wire guide wheel 64, the pushing mechanism 7 moves outward to drive the swinging plate 5 to swing upward, after the swinging plate 5 swings ninety degrees upward, the twisting of the knob 61 is stopped, the knob 61 is loosened, due to the effect of the first spring 66, the knob 61 moves backward to reset and is in contact with the frame body 1, the frame body 1 limits and fixes the knob 61, and the student can place the books on the swinging plate. When the swinging plate 5 is not needed to be used, the knob 61 is pulled again to move forwards to be separated from the frame body 1, the knob 61 is twisted to rotate forwards and reset, the reel 63 rotates forwards to loosen the pull wire 65, the pushing mechanism 7 can be pushed to move inwards to reset, the swinging plate 5 swings downwards to reset, the knob 61 is stopped being twisted, and the knob 61 is loosened to move backwards and reset.
When the operator twists the knob 61 to rotate reversely, the pull wire 65 drives the u-shaped guide plate 72 to move outwards through the wire guide wheel 64, the u-shaped guide plate 72 moves outwards to drive the u-shaped push plate 71 to move outwards, the u-shaped push plate 71 moves outwards to drive the swing plate 5 to swing upwards, when the swing plate 5 swings ninety degrees upwards, the twisting of the knob 61 is stopped, the pull wire 65 also stops driving the u-shaped guide plate 72 to move outwards, and the u-shaped push plate 71 supports the swing plate 5. When the swinging plate 5 is not needed to be used and the pull wire 65 is loosened, the u-shaped push plate 71 can be pushed to move inwards for resetting, the u-shaped push plate 71 does not support the swinging plate 5, the swinging plate 5 also swings downwards for resetting, and the u-shaped push plate 71 drives the u-shaped guide plate 72 to move inwards for resetting.
Example 2
Based on the embodiment 1, as shown in fig. 1, 2, 3, 5, 7 and 8, the present invention further comprises a limiting mechanism 8, the limiting mechanism 8 comprises a tooth block 81, a swinging snap-gauge 82, a gear 83, a guide block 85 and a u-shaped plate 86, the left and right sides of the bottom of the table 4 are symmetrically provided with a special-shaped groove 84, the guide block 85 is slidably provided in the special-shaped groove 84, the bottom end of the guide block 85 penetrates through the u-shaped push plate 71 to be in contact fit with the u-shaped guide plate 72, the left parts of the front and rear sides of the left u-shaped guide plate 72 are uniformly spaced and fixedly connected with the tooth block 81, the right parts of the front and rear sides of the right u-shaped guide plate 72 are uniformly spaced and fixedly connected with the tooth block 81, the inside of the front and rear sides of the left part of the u-shaped push plate 71 is rotatably connected with the swinging snap-gauge 82, the inside of the front and rear sides of the right part of the u-, the gear 83 is coaxially arranged with the connection part of the swinging clamping plate 82 and the u-shaped push plate 71, the gear 83 is meshed with the tooth block 81, u-shaped plates 86 are symmetrically fixedly connected to the middle parts of the inner side surfaces of the swinging plates 5 on the left side and the right side in a front-back mode, and the u-shaped plates 86 are matched with the swinging clamping plate 82.
The device also comprises a driving mechanism 9, the driving mechanism 9 comprises a movable strip 91, a second spring 92, a pedal 93, an n-type clamping plate 94, a guide sleeve 95, an L-type ratchet strip 96, a ratchet 97 and a third spring 98, the rear end of a rotating shaft 62 is fixedly connected with the ratchet 97, the middle part of the rear side surface of the left support plate 2 is fixedly connected with the guide sleeve 95, the L-type ratchet strip 96 is connected in the guide sleeve 95 in a sliding mode in a penetrating way, the L-type ratchet strip 96 is meshed with the ratchet 97, the movable strip 91 is connected between the front side and the rear side of the left support plate 2 in a sliding mode in a penetrating way, the rear end of the movable strip 91 is fixedly connected with the front end of the L-type ratchet strip 96, the bottom of the movable strip 91 and the inner bottom of the left support plate 2 are uniformly connected with three second springs 92 at intervals, the pedal 93 is rotatably connected between the front side surface and the rear side surface of the top of the movable strip 91, the lower portion of the n-type catch plate 94 is located on the right side of the pedal 93 for contact engagement therewith.
When the u-shaped guide plate 72 moves outwards, the u-shaped guide plate 72 also drives the guide block 85 to move outwards, the guide block 85 moves outwards to slide in the special-shaped groove 84, the guide block 85 moves outwards to drive the u-shaped push plate 71 to move outwards, meanwhile, the u-shaped push plate 71 moves outwards and also drives the swinging clamping plate 82 to move outwards, when the guide block 85 moves outwards to the maximum stroke, the special-shaped groove 84 enables the guide block 85 to move upwards, the guide block 85 moves upwards to be separated from the u-shaped guide plate 72, the u-shaped guide plate 72 continues to move leftwards to drive the tooth block 81 to move leftwards, the tooth block 81 moves leftwards to drive the gear 83 to rotate inwards, the gear 83 rotates inwards to drive the swinging clamping plate 82 to swing inwards, the swinging clamping plate 82 swings inwards to be in contact with the u-shaped plate 86, the twisting knob 61 is stopped, the u-shaped guide plate 72 stops moving outwards, and the swinging clamping plate 82 is matched with the u-shaped plate 86 to further support the swinging plate 5. When the u-shaped guide plate 72 moves inwards to reset, the u-shaped guide plate 72 drives the tooth block 81 to move inwards to reset, the tooth block 81 drives the gear 83 to rotate outwards to reset, the swinging clamping plate 82 swings outwards to reset and is separated from the u-shaped plate 86, and then when the u-shaped push plate 71 moves inwards to reset, the u-shaped push plate 71 drives the guide block 85 to move inwards to reset, and the special-shaped groove 84 enables the guide block 85 to move downwards to reset. In this way, the swing plate 5 can be supported more stably.
When a student pulls the knob 61 to move forwards to be separated from the frame 1, the student pulls the n-type clamping plate 94 to move upwards, the third spring 98 is stretched, when the n-type clamping plate 94 moves upwards to be separated from the pedal 93, the pedal 93 swings downwards to be in a horizontal state, the n-type clamping plate 94 is loosened, the n-type clamping plate 94 moves downwards to be reset under the action of the third spring 98, the student steps on the pedal 93 to move downwards, the pedal 93 moves downwards to drive the movable strip 91 to move downwards, the second spring 92 is compressed, the movable strip 91 moves downwards to drive the L-type ratchet strip 96 to move downwards, the L-type ratchet strip 96 moves downwards to drive the ratchet 97 to rotate reversely, the ratchet 97 rotates reversely to drive the rotating shaft 62 to rotate reversely, the swinging plate 5 swings ninety degrees upwards, the pedal 93 is loosened, the movable strip 91 moves upwards to drive the pedal 93 to move upwards to be reset under the action of the second spring 92, the movable strip 91 also drives the L-type, the L-shaped ratchet 96 moves upward to slide on the ratchet 97, and then pulls the pedal 93 to swing upward, and the pedal 93 swings upward to slide over and return from the n-shaped catch plate 94 due to the action of the third spring 98. In this way, it is more convenient for the operator to make the reel 63 wind up the wire 65.
Example 3
On the basis of the embodiment 1 and the embodiment 2, as shown in fig. 1, fig. 2, fig. 4, fig. 9 and fig. 10, the table further includes a movable clamping plate 10, an L-shaped hook plate 11 and a fourth spring 13, the movable clamping plate 10 vertically penetrates through the middle of the swinging plate 5 in a sliding manner, the L-shaped hook plate 11 is slidably arranged at the bottom end of the movable clamping plate 10, three fourth springs 13 are uniformly connected between the lower part of the inner right side surface of the L-shaped hook plate 11 on the left side and the lower part of the right side surface of the movable clamping plate 10 on the left side at intervals, the lower parts of the inner side surfaces of the movable clamping plates 10 on the left side and the right side are both provided with first clamping grooves 12, the first clamping grooves 12 are matched with the L-shaped hook plate 11, the middle parts of the left side.
Still including first strong magnet 15, sleeve 16, second strong magnet 17 and second spring 92, the rigid coupling of the outside left and right sides face lower part of framework 1 all symmetry formula has first strong magnet 15, the rigid coupling of the 5 medial surface lower part symmetry formula of left and right sides swing plate has sleeve 16, sleeve 16 corresponds with first strong magnet 15, sleeve 16 internal sliding formula is equipped with second strong magnet 17, second strong magnet 17 and the cooperation of first strong magnet 15, be connected with second spring 92 between second strong magnet 17 outer end and the 16 medial surfaces of sleeve.
After swing board 5 swung ninety degrees, the student can promote L type hook plate 11 inward movement, L type hook plate 11 inward movement drives movable catch plate 10 inward movement, movable catch plate 10 inward movement inserts in second draw-in groove 14, L type hook plate 11 inward movement and swing board 5 contact, swing board 5 makes L type hook plate 11 move down, fourth spring 13 is tensile, L type hook plate 11 inward movement corresponds with first draw-in groove 12, because of the effect of fourth spring 13, L type hook plate 11 upward movement inserts in first draw-in groove 12, L type hook plate 11 and first draw-in groove 12 cooperation are fixed movable catch plate 10, loosen L type hook plate 11, movable catch plate 10 and second draw-in groove 14 cooperation are fixed swing board 5. When the swinging plate 5 is not needed, the L-shaped hook plate 11 is pushed to move downwards to be separated from the first clamping groove 12, the fourth spring 13 is stretched, the L-shaped hook plate 11 is pulled to drive the movable clamping plate 10 to move outwards to be separated from the second clamping groove 14, the L-shaped hook plate 11 is loosened to move upwards to reset, and then when the swinging plate 5 swings downwards, the swinging plate 5 drives the movable clamping plate 10 to swing downwards to reset. Therefore, the phenomenon that the swinging plate 5 moves to influence the placement of the books can be avoided.
When the swing plate 5 swings upwards, the swing plate 5 drives the sleeve 16 to swing upwards, the sleeve 16 swings upwards to drive the second strong magnet 17 to swing upwards, the second strong magnet 17 swings upwards to be separated from the first strong magnet 15, and when the swing plate 5 swings downwards to reset, the swing plate 5 drives the second strong magnet 17 to swing downwards to reset through the sleeve 16, the second strong magnet 17 is contacted with the first strong magnet 15 to attract each other, and the swing plate 5 can be buffered due to the action of the fifth spring 18. Thus, when the swing plate 5 is not used, the swing plate 5 can be prevented from swinging freely.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a changeable teaching desk of desktop area, characterized by, including:
the device comprises a frame body (1), wherein a support plate (2) is symmetrically and fixedly connected to one side of the outer side of the frame body (1);
the table plate (4) is fixedly connected to one side, far away from the support plate (2), of the outer side of the frame body (1);
the L-shaped plate (3) is fixedly connected between one side of the table plate (4) facing the support plate (2) and the circumferential direction of one side in the frame body (1);
the swinging plate (5) is symmetrically and rotatably connected between the two sides of the table plate (4);
the material pulling mechanism (6) is arranged on the frame body (1) and used for providing power;
the pushing mechanism (7) is installed on one side in the L-shaped plate (3), matched with the frame body (1) and the swinging plate (5), and fixedly connected with the pulling mechanism (6) and used for driving the swinging plate (5) to swing.
2. An instructional desk with a variable desktop area as claimed in claim 1 wherein the drawing mechanism (6) comprises:
the wire guide wheels (64) are fixedly connected to two outer sides of the frame body (1) at intervals, and the number of the wire guide wheels (64) on each side is four;
the rotating shaft (62) is rotatably connected to one side, close to one of the support plates (2), of the outer side of the frame body (1), and one end of the rotating shaft (62) is octagonal;
the knob (61) is slidably sleeved at the octagonal end part of the rotating shaft (62), and the knob (61) is in contact fit with the frame body (1);
a first spring (66), wherein the first spring (66) is connected between the inner side of the knob (61) and the end part of the rotating shaft (62);
the spinning reel (63), the fixed suit of reel (63) symmetry formula is in on the pivot (62), it has two acting as go-between (65) to wind on it, per two acting as go-between (65) are walked around every side respectively reel (63) run through framework (1) with pushing equipment (7) fixed connection.
3. Teaching desk with a variable desk surface area according to claim 2, characterised in that the pushing means (7) comprise:
the u-shaped push plate (71), the u-shaped push plate (71) is symmetrically and slidably placed on one side in the L-shaped plate (3), and the end part of the u-shaped push plate penetrates through the frame body (1) to be matched with the swinging plate (5);
the u-shaped guide plate (72) is slidably arranged on one side of the u-shaped push plate (71), and one inner side of the u-shaped guide plate (72) is fixedly connected with the tail end of the pull wire (65).
4. A variable-area teaching desk as claimed in claim 3, further comprising a limiting mechanism (8), wherein the limiting mechanism (8) comprises:
the swinging clamping plates (82) are rotatably connected to two sides inside the u-shaped push plate (71);
the gear (83) is fixedly sleeved in the middle of one side of the swinging clamping plate (82) far away from the swinging plate (5);
the tooth blocks (81) are fixedly connected to two inner sides of the u-shaped guide plate (72) close to the gear (83) at intervals, and are meshed with the gear (83);
-profiled slots (84), the profiled slots (84) being spaced apart on the side of the table (4) facing the fulcrum plate (2), by a number of four;
the guide block (85) is slidably placed in the special-shaped groove (84), and one end of the guide block penetrates through the u-shaped push plate (71) to be in contact fit with the u-shaped guide plate (72);
the U-shaped plate (86) is symmetrically and fixedly connected to the middle of one side of the swinging plate (5) facing the frame body (1) and matched with the swinging clamping plate (82).
5. An instructional desk with a variable desktop area as claimed in claim 4 further comprising a drive mechanism (9), the drive mechanism (9) comprising:
the guide sleeve (95), the said guide sleeve (95) is affixed to one of the said support plate (2) one side;
the L-shaped ratchet strip (96) is slidably connected into the guide sleeve (95);
the ratchet wheel (97) is fixedly sleeved at the end part of the rotating shaft (62) far away from the knob (61) and is meshed with the L-shaped ratchet strip (96);
the movable strip (91) is slidably penetrated between two sides of the support plate (2) close to the L-shaped ratchet strip (96), and one end of the movable strip (91) is fixedly connected with the end part of the L-shaped ratchet strip (96);
the second springs (92) are fixedly connected between one side of the movable strip (91) far away from the frame body (1) and the interior of the support plate (2) at intervals, and the number of the second springs (92) is three;
a pedal (93), wherein the pedal (93) is rotatably connected to one side of the movable strip (91) far away from the second spring (92);
the n-type clamping plate (94), the n-type clamping plate (94) is slidably penetrated and connected to one side of the support plate (2) close to the pedal (93), and is in contact fit with the pedal (93);
and the third spring (98) is symmetrically connected between the inner side of the n-shaped clamping plate (94) facing the movable strip (91) and one side of the support plate (2).
6. The teaching desk with the variable desktop area as claimed in claim 5, further comprising: the movable clamping plate (10) is vertically and slidably connected to the middle part of the swinging plate (5) in a penetrating manner;
the L-shaped hook plate (11) is slidably placed at the end part of the movable clamping plate (10) far away from the table plate (4);
the fourth spring (13) is fixedly connected between one side of the inner part of the L-shaped hook plate (11) close to the rotating shaft (62) and one side of the movable clamping plate (10) at intervals;
the first clamping groove (12) is formed in one side, facing the frame body (1) and far away from the table board (4), of the movable clamping board (10), and the first clamping groove (12) is matched with the L-shaped hook board (11);
the second clamping grooves (14) are formed in two sides of the table plate (4) and matched with the movable clamping plates (10).
7. The teaching desk with the variable desktop area as claimed in claim 6, further comprising: the sleeve (16) is symmetrically and fixedly connected to one side of the swinging plate (5) which faces the frame body (1) and is far away from the table plate (4);
the second strong magnet (17), the said second strong magnet (17) is placed in the said bush (16) slidably;
a fifth spring (18), wherein the fifth spring (18) is connected between the end part of the second strong magnet (17) far away from the frame body (1) and one side in the sleeve (16);
first strong magnet (15), the rigid coupling of first strong magnet (15) symmetry formula in being close to swing board (5) just keep away from table (4) both sides outside framework (1), its with second strong magnet (17) contact cooperation.
8. The teaching desk with the variable desktop area as claimed in claim 7, wherein the outer circumference of the knob (61) is made of rubber to increase friction force with hands.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011293320.2A CN112315207B (en) | 2020-11-18 | 2020-11-18 | Changeable teaching desk of desktop area |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011293320.2A CN112315207B (en) | 2020-11-18 | 2020-11-18 | Changeable teaching desk of desktop area |
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| CN112315207A true CN112315207A (en) | 2021-02-05 |
| CN112315207B CN112315207B (en) | 2023-03-31 |
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| CN113349560A (en) * | 2021-06-18 | 2021-09-07 | 江西省南城县发华实业有限公司 | Student desk with folding function |
| CN114209157A (en) * | 2021-12-17 | 2022-03-22 | 江西星亮校具有限公司 | Sanitary desk for public classroom |
| CN114431617A (en) * | 2022-01-10 | 2022-05-06 | 曾陆军 | A desk with adjustable desktop size |
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| Publication number | Publication date |
|---|---|
| CN112315207B (en) | 2023-03-31 |
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