CN214564170U - Portable multifunctional blackboard for outdoor teaching of Chinese education - Google Patents

Portable multifunctional blackboard for outdoor teaching of Chinese education Download PDF

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Publication number
CN214564170U
CN214564170U CN202120884594.2U CN202120884594U CN214564170U CN 214564170 U CN214564170 U CN 214564170U CN 202120884594 U CN202120884594 U CN 202120884594U CN 214564170 U CN214564170 U CN 214564170U
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China
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block
blackboard
rotating
rod
box
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Expired - Fee Related
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CN202120884594.2U
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Chinese (zh)
Inventor
吴旺
曾伟群
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Individual
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Individual
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Abstract

The utility model relates to a blackboard especially relates to an outdoor teaching of chinese education is with portable multi-functional blackboard. The technical problem of the utility model is that: provided is a portable multifunctional blackboard for outdoor teaching of Chinese education, which can be folded and can help to carry chalks and books. The utility model provides a such outdoor teaching of chinese education is with portable multi-functional blackboard, including case, case lid, connecting rod, first supporting block, first axis of rotation, first slide rail, first blackboard, first fixture block, extension mechanism and buckle subassembly, case one side upper portion symmetry is equipped with first supporting block, is equipped with the connecting rod between the first supporting block, and the rotation type is equipped with the case lid on the connecting rod, case lid and case contact. The utility model can fold or unfold the blackboard at will through the matching of the extension mechanism and the buckle component, thereby being convenient for people to carry and use; through storage device, can make things convenient for people to carry the chalk and use the book for teaching, make things convenient for people to impart knowledge to students in the open air.

Description

Portable multifunctional blackboard for outdoor teaching of Chinese education
Technical Field
The utility model relates to a blackboard especially relates to an outdoor teaching of chinese education is with portable multi-functional blackboard.
Background
The blackboard is a plane which can be repeatedly written by chalk, has a hard board surface, is commonly used for teaching, and is generally made of wood boards or ground glass.
But common blackboard shape simple structure can not fold and carry, and inconvenient people are in outdoor teaching, and people need carry chalk and books when teaching in the open air moreover, and the thing is more, and people are inconvenient to carry, and still waste time and energy, to above-mentioned problem, designed one kind can fold and can help carrying the portable multi-functional blackboard for the outdoor teaching of chinese education of chalk and books.
SUMMERY OF THE UTILITY MODEL
In order to overcome current blackboard shape simple structure, can not fold and carry, people need carry chalk and books when teaching in the open air moreover, comparatively waste time and energy's shortcoming, the technical problem of the utility model is: provided is a portable multifunctional blackboard for outdoor teaching of Chinese education, which can be folded and can help to carry chalks and books.
The technical scheme is as follows: the utility model provides an outdoor teaching of chinese education is with portable multi-functional blackboard, including the case, the case lid, the connecting rod, first supporting block, first axis of rotation, first slide rail, first blackboard, first fixture block, extension mechanism and buckle subassembly, case one side upper portion symmetry is equipped with first supporting block, be equipped with the connecting rod between the first supporting block, the rotation type is equipped with the case lid on the connecting rod, case lid and case contact, case upper portion one side rotary type is equipped with first axis of rotation, be equipped with first slide rail in the first axis of rotation, be equipped with first blackboard on the first slide rail, first blackboard one side upper portion symmetry is equipped with first fixture block, be equipped with extension mechanism between first blackboard and the case, be equipped with the buckle subassembly between case and the case lid.
In addition, it is particularly preferred that the extension mechanism is including the second blackboard, the bracing piece, first fixed block, first dead lever, fixed sleeve and first spring, first slide rail one side symmetry slidingtype is equipped with the bracing piece, bracing piece upper portion all is equipped with first fixed block, first fixed block one side all is equipped with first dead lever, first dead lever one side all is slidingtype and is equipped with fixed sleeve, fixed sleeve one side all is equipped with the second blackboard, the second blackboard is located first blackboard one side, second blackboard and first slide rail sliding connection, all be equipped with first spring between the fixed sleeve of homonymy and the first fixed block.
In addition, especially preferred, buckle subassembly includes handle, second slide rail, second fixture block and second spring, and the middle of case bottom and the middle of case lid bottom all are equipped with the handle, and the inside middle of handle of one side is equipped with the second slide rail, and second slide rail one side slidingtype is equipped with the second fixture block, and the second fixture block is connected with the handle slidingtype of one side, and the symmetry is equipped with the second spring between second fixture block and the second slide rail.
In addition, particularly preferably, the chalk box comprises a containing device which comprises a chalk containing box, a fixing frame, a guide rod, a first limiting plate, a third spring, a second fixing block, a first rotating rod, rotating blocks, a first connecting block, a third sliding rail and a pushing block, wherein the chalk containing box is arranged at the lower part of one side of the box, the fixing frame is arranged in the middle of the lower part of one side of the box cover, the guide rods are symmetrically arranged at two sides in the fixing frame, four first limiting plates are arranged between the guide rods in a sliding manner at uniform intervals, the third spring is arranged between the corner of the first limiting plate and the guide rod, two second fixing blocks are arranged in the middle parts of two sides of the fixing frame, the first rotating rod is arranged between the second fixing blocks at the same side in a rotating manner, the rotating blocks are arranged at one side of the first rotating rod, the rotating blocks are matched with the first limiting plate, the first connecting block is arranged at one side of the first rotating rod, the third sliding rail is arranged in the middle part of one side of the fixing frame, the third slide rail is provided with a pushing block in a sliding way, and the other end of the first connecting block is connected with the pushing block in a sliding way.
In addition, it is particularly preferred, still including fixing device, fixing device is including the second axis of rotation, the second dead lever, the rotor plate, the third dead lever, the second limiting plate, the second connecting block, second supporting shoe and fourth spring, the equal rotary type in upper portion of case both sides is equipped with the second axis of rotation, the lower part of case both sides all is equipped with the second dead lever, all be equipped with the rotor plate in the second axis of rotation, the upper portion of case lid both sides all is equipped with the third dead lever, rotor plate one side all slidingtype is equipped with the second limiting plate, rotor plate one side longitudinal symmetry slidingtype is equipped with the second connecting block, second connecting block and second limiting plate cooperation, rotor plate one side longitudinal symmetry is equipped with the second supporting shoe, all be equipped with the fourth spring between second supporting shoe and the second connecting block of rotor plate homonymy.
In addition, it is particularly preferred, still including supporting mechanism, supporting mechanism is including the third fixed block, the second dwang, the third supporting shoe, the gag lever post, elastic component and connecting plate, case bottom both sides all are equipped with the third fixed block, equal rotary type is equipped with the second dwang on the third fixed block, the second dwang all is connected with the case rotary type, all be equipped with the third supporting shoe on the second dwang, the gliding style is equipped with two gag lever posts on the third fixed block, gag lever post and third supporting shoe cooperation, all be equipped with the elastic component between gag lever post upper portion and the third fixed block, be equipped with the connecting plate between gag lever post one side.
Compared with the prior art, the utility model has the advantages of it is following: 1. the utility model discloses a cooperation of extension mechanism and buckle subassembly, can be random fold the blackboard or expand, make things convenient for people's carrying and use.
2. Through storage device, can make things convenient for people to carry the chalk and use the book for teaching, make things convenient for people to impart knowledge to students in the open air.
3. Through fixing device, can fix the position of case and case lid when people use this blackboard, avoid case and case lid to slide.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of a first partial body structure of the extension mechanism of the present invention.
Fig. 3 is a schematic diagram of a second partial body structure of the extension mechanism of the present invention.
Fig. 4 is a schematic view of the three-dimensional structure of the buckle assembly of the present invention.
Fig. 5 is a schematic view of a first partial body structure of the storage device of the present invention.
Fig. 6 is a schematic view of a second partial body structure of the storage device of the present invention.
Fig. 7 is a schematic view of the three-dimensional structure of the fixing device of the present invention.
Fig. 8 is a schematic view of a part a of the three-dimensional structure of the present invention.
Fig. 9 is a schematic view of a three-dimensional structure of the supporting mechanism of the present invention.
Wherein the figures include the following reference numerals: 1. a case, 2, a case cover, 3, a connecting rod, 4, a first supporting block, 5, a first rotating shaft, 6, a first sliding rail, 7, a first blackboard, 8, a first clamping block, 9, an extension mechanism, 90, a second blackboard, 91, a supporting rod, 92, a first fixing block, 93, a first fixing rod, 94, a fixing sleeve, 95, a first spring, 10, a buckle component, 100, a handle, 101, a second sliding rail, 102, a second clamping block, 103, a second spring, 11, a storage device, 110, a chalk storage box, 111, a fixing frame, 112, a guide rod, 113, a first limiting plate, 114, a third spring, 115, a second fixing block, 116, a first rotating rod, 117, a rotating block, 118, a first connecting block, 119, a third sliding rail, 1110, a pushing block, 12, a fixing device, 120, a second rotating shaft, 121, a second fixing rod, 122, a rotating plate, 123, a third fixing rod, 124. the second limiting plate 125, the second connecting block 126, the second supporting block 127, the fourth spring 13, the supporting mechanism 130, the third fixing block 131, the second rotating rod 132, the third supporting block 133, the limiting rod 134, the elastic element 135 and the connecting plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Example 1
A portable multifunctional blackboard for outdoor teaching of Chinese education is shown in figure 1, figure 2, figure 3 and figure 4, and comprises a box 1, a box cover 2, a connecting rod 3 and a first supporting block 4, first axis of rotation 5, first slide rail 6, first blackboard 7, first fixture block 8, extension mechanism 9 and buckle subassembly 10, the symmetry is equipped with first supporting block 4 around 1 right side upper portion of case, be equipped with connecting rod 3 between the first supporting block 4, the last rotation type of connecting rod 3 is equipped with case lid 2, case lid 2 and the contact of case 1, 1 upper portion left side rotary type of case is equipped with first axis of rotation 5, be equipped with first slide rail 6 on the first axis of rotation 5, be equipped with first blackboard 7 on the first slide rail 6, the symmetry is equipped with first fixture block 8 around 7 left side upper portions of first blackboard, be equipped with extension mechanism 9 between first blackboard 7 and the case 1, be equipped with buckle subassembly 10 between case 1 and the case lid 2.
Extension mechanism 9 is including second blackboard 90, bracing piece 91, first fixed block 92, first dead lever 93, fixed sleeve 94 and first spring 95, the symmetry is slided around first slide rail 6 right side and is equipped with bracing piece 91, bracing piece 91 upper portion all is equipped with first fixed block 92, first fixed block 92 left side all is equipped with first dead lever 93, first dead lever 93 left side all is slided and is equipped with fixed sleeve 94, fixed sleeve 94 left side all is equipped with second blackboard 90, second blackboard 90 is located first blackboard 7 right side, second blackboard 90 and first blackboard 7 and first slide rail 6 sliding type connection, all be equipped with first spring 95 between the fixed sleeve 94 of homonymy and the first fixed block 92.
The buckle assembly 10 comprises a handle 100, a second slide rail 101, a second clamping block 102 and a second spring 103, the handle 100 is arranged in the middle of the bottom of the box 1 and the middle of the bottom of the box cover 2, the second slide rail 101 is arranged in the middle of the inside of the left handle 100, the second clamping block 102 is arranged on the left side of the second slide rail 101 in a sliding manner, the second clamping block 102 is connected with the left handle 100 in a sliding manner, and the second spring 103 is symmetrically arranged between the second clamping block 102 and the second slide rail 101 in a front-back manner.
When people need to use the blackboard, the second fixture block 102 is pushed upwards, the second spring 103 is compressed, the handle 100 on the box cover 2 is loosened by the second fixture block 102, then the box cover 2 can be rotated rightwards to be opened, then the second fixture block 102 is loosened, the second spring 103 is restored to the original state to drive the second fixture block 102 to move and reset, then the box 1 and the box cover 2 can be placed on the ground at a certain angle, the first blackboard 7 is rotated rightwards to drive the first rotating shaft 5 and the first sliding rail 6 to rotate rightwards, the first sliding rail 6 drives all the components on the first sliding rail to rotate rightwards, then the supporting rod 91 is pulled outwards to drive all the components on the supporting rod 91 to move outwards, so that the second blackboard 90 is unfolded, meanwhile, the first sliding rail 6 drives the second blackboard 90 and the fixed sleeve 94 to move leftwards, the first spring 95 is stretched, and the second blackboard 90 is positioned at the front side and the back side of the first blackboard 7, at this moment, the supporting rod 91 supports the inner wall of the box 1 to support the first sliding rail 6, at this moment, chalk can be used for writing on the second blackboard 90 and the first blackboard 7 for teaching, when people do not need to use the blackboard, the supporting rod 91 is pushed inwards to reset at first, the supporting rod 91 drives all the components on the supporting rod to move inwards to reset, meanwhile, the first sliding rail 6 drives the second blackboard 90 and the fixed sleeve 94 to move rightwards to reset, the first spring 95 restores the original state, then the first blackboard 7 rotates leftwards to reset, so that the first blackboard 7 is positioned in the box 1, the first blackboard 7 drives the first rotating shaft 5 and the first sliding rail 6 to rotate to reset, the first sliding rail 6 drives all the components on the first sliding rail to rotate leftwards to reset, then the box cover 2 rotates leftwards to close, when the handle 100 on the box cover 2 contacts with the second clamping block 102, the second clamping block 102 is driven to move upwards, the second spring 103 is compressed, when the handle 100 on the case cover 2 passes over the second clamping block 102, the second spring 103 returns to the original state to drive the second clamping block 102 to move and reset to clamp the handle 100 on the case cover 2, and at the moment, people can hold the handle 100 by hands and lift the whole blackboard to go out for teaching.
Example 2
Based on the embodiment 1, as shown in fig. 5, 6, 7, 8 and 9, the chalk box comprises a chalk storage box 110, a fixed frame 111, a guide rod 112, a first limiting plate 113, a third spring 114, a second fixed block 115, a first rotating rod 116, a rotating block 117, a first connecting block 118, a third slide rail 119 and a pushing block 1110, the chalk storage box 110 is arranged at the lower part of the left side of the box 1, the fixed frame 111 is arranged at the middle of the lower part of the right side of the box cover 2, the guide rods 112 are symmetrically arranged at the front and rear sides in the fixed frame 111, four sliding first limiting plates 113 are arranged between the guide rods 112 at uniform intervals, the third spring 114 is arranged between the corner of the first limiting plate 113 and the guide rod 112, two second fixed blocks 115 are arranged at the middle parts of the front and rear sides of the fixed frame 111, the first rotating rod 116 is rotatably arranged between the second fixed blocks 115 at the same side, first pivot pole 116 left side all is equipped with turning block 117, and turning block 117 and the cooperation of first limiting plate 113 all are equipped with first connecting block 118 on first pivot pole 116 right side, and fixed frame 111 right side middle part is equipped with third slide rail 119, and the gliding style is equipped with on third slide rail 119 and promotes piece 1110, and the first connecting block 118 other end all with promote piece 1110 sliding connection.
When people need to lift the whole blackboard for teaching, firstly, the cover of the chalk containing box 110 is rotated leftwards to be opened, then the chalk is placed into the chalk containing box 110, then the cover of the chalk containing box 110 is rotated rightwards to be closed, then the teaching book can be placed into the fixing frame 111, so that the teaching book is separated by the first limiting plate 113, then the pushing block 1110 is pulled downwards, the pushing block 1110 drives the first rotating rod 116 to rotate through the first connecting block 118, so that the rotating block 117 is driven to rotate inwards, the rotating block 117 drives the rightmost first limiting plate 113 to move leftwards, the teaching book drives other first limiting plates 113 to move leftwards, the third spring 114 is compressed, at the moment, the first limiting plate 113 can compress the teaching book to prevent the teaching book from falling off, then the box cover 2 can be closed, at the moment, the first clamping block 8 is used for supporting the cover of the chalk containing box 110 to avoid the chalk from falling off, after people open case lid 2, upwards stimulate and promote piece 1110 to drive turning block 117 and rotate the reset towards the outside, third spring 114 reconversion this moment drives first limiting plate 113 and moves the reset towards the right side, thereby loosens the books for teaching, and people can take out the books for teaching, then turns left the lid of chalk receiver 110 and opens, makes things convenient for people's use.
Still including fixing device 12, fixing device 12 is including second axis of rotation 120, second dead lever 121, rotor plate 122, third dead lever 123, second limiting plate 124, second connecting block 125, second supporting shoe 126 and fourth spring 127, the equal rotary type in upper portion of both sides is equipped with second axis of rotation 120 around case 1, the lower part of both sides all is equipped with second dead lever 121 around case 1, all be equipped with rotor plate 122 on the second axis of rotation 120, the upper portion of both sides all is equipped with third dead lever 123 around case lid 2, rotor plate 122 right side all is slided and is equipped with second limiting plate 124, rotor plate 122 right side longitudinal symmetry slidingtype is equipped with second connecting block 125, second connecting block 125 and the cooperation of second limiting plate 124, rotor plate 122 right side longitudinal symmetry is equipped with second supporting block 126, all be equipped with fourth spring 127 between the second supporting block 126 of homonymy and the second connecting block 125.
When people rotate and open the box cover 2, the box 1 and the box cover 2 are placed on the ground at a certain angle, then the second connecting block 125 is pulled outwards, the second limiting plate 124 is loosened by the second connecting block 125, then the second connecting block 125 is loosened, the fourth spring 127 is restored to the original state, the second connecting block 125 is driven to move and reset, then the second limiting plate 124 can be pulled outwards, the second fixing rod 121 is loosened by the second limiting plate 124 and the rotating plate 122, then the rotating plate 122 is rotated to one side of the third fixing rod 123, then the second limiting plate 124 is inserted back to the original position, the third fixing rod 123 is clamped by the second limiting plate 124 and the rotating plate 122, the angle between the box 1 and the box cover 2 is fixed, the box 1 and the box cover 2 are prevented from sliding, then the second connecting block 125 is pulled back to the original position, the fourth spring 127 is stretched, and the second connecting block 125 fixes the position of the second limiting plate 124, then can use this blackboard to teach, when people need not use this blackboard, repeat above-mentioned operation, reset second limiting plate 124 and rotor plate 122 and block second dead lever 121, then can rotate lid 2 and close.
Still including supporting mechanism 13, supporting mechanism 13 is including third fixed block 130, second dwang 131, third supporting shoe 132, gag lever post 133, elastic component 134 and connecting plate 135, both sides all are equipped with third fixed block 130 around case 1 bottom, the equal rotary type is equipped with second dwang 131 on the third fixed block 130, second dwang 131 all is connected with case 1 rotary type, all be equipped with third supporting shoe 132 on the second dwang 131, the gliding style is equipped with two gag lever posts 133 on the third fixed block 130, gag lever post 133 and the cooperation of third supporting shoe 132, all be equipped with elastic component 134 between gag lever post 133 upper portion and the third fixed block 130, be equipped with connecting plate 135 between the gag lever post 133 left side.
After people rotate the case lid 2 and open, place case 1 and case lid 2 at a certain angle subaerial, turn left pulling connecting plate 135, drive gag lever post 133 and turn left the motion, elastic component 134 is tensile, make gag lever post 133 loosen third supporting shoe 132, then down rotate third supporting shoe 132, make third supporting shoe 132 and ground contact, play the supporting role, then loosen connecting plate 135, elastic component 134 reconversion, it resets to drive connecting plate 135 and gag lever post 133 to turn right the motion, make gag lever post 133 block third supporting shoe 132 again, when people need not use this blackboard, turn left pulling connecting plate 135 once more, then up rotate third supporting shoe 132 and reset, then loosen connecting plate 135 can.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (6)

1. A portable multifunctional blackboard for outdoor teaching of Chinese education comprises a box (1), a box cover (2), connecting rods (3), first supporting blocks (4), first rotating shafts (5), first sliding rails (6), a first blackboard (7) and first clamping blocks (8), wherein the first supporting blocks (4) are symmetrically arranged on the upper portion of one side of the box (1), the connecting rods (3) are arranged between the first supporting blocks (4), the box cover (2) is rotatably arranged on the connecting rods (3), the box cover (2) is in contact with the box (1), the first rotating shaft (5) is rotatably arranged on one side of the upper portion of the box (1), the first sliding rails (6) are arranged on the first rotating shafts (5), the first blackboard (7) is arranged on the first sliding rails (6), the first clamping blocks (8) are symmetrically arranged on the upper portion of one side of the first blackboard (7), and is characterized by further comprising an extension mechanism (9) and a clamping assembly (10), an extension mechanism (9) is arranged between the first blackboard (7) and the box (1), and a buckle component (10) is arranged between the box (1) and the box cover (2).
2. A portable multi-functional blackboard for outdoor teaching of Chinese education as claimed in claim 1, the novel extension mechanism is characterized in that the extension mechanism (9) comprises a second blackboard (90), a support rod (91), a first fixing block (92), a first fixing rod (93), a fixing sleeve (94) and a first spring (95), the support rod (91) is symmetrically and slidably arranged on one side of a first sliding rail (6), the first fixing block (92) is arranged on the upper portion of the support rod (91), the first fixing rod (93) is arranged on one side of the first fixing block (92), the fixing sleeve (94) is slidably arranged on one side of the first fixing rod (93), the second blackboard (90) is arranged on one side of the first blackboard (7), the second blackboard (90) is slidably connected with the first blackboard (7) and the first sliding rail (6), and the first spring (95) is arranged between the fixing sleeve (94) and the first fixing block (92) on the same side.
3. The portable multifunctional blackboard for outdoor teaching of Chinese education as claimed in claim 2 wherein the buckle assembly (10) includes a handle (100), a second slide rail (101), a second block (102) and a second spring (103), the handle (100) is disposed at the middle of the bottom of the case (1) and the middle of the bottom of the case cover (2), the second slide rail (101) is disposed at the middle of the inside of the handle (100) at one side, the second block (102) is slidably disposed at one side of the second slide rail (101), the second block (102) is slidably connected with the handle (100) at one side, and the second spring (103) is symmetrically disposed between the second block (102) and the second slide rail (101).
4. The portable multifunctional blackboard for outdoor teaching of Chinese education according to claim 3, characterized in that it further comprises a receiving device (11), the receiving device (11) comprises a chalk storage box (110), a fixed frame (111), a guide rod (112), a first limit plate (113), a third spring (114), a second fixed block (115), a first rotating rod (116), a rotating block (117), a first connecting block (118), a third sliding rail (119) and a pushing block (1110), the chalk storage box (110) is arranged at the lower part of one side of the case (1), the fixed frame (111) is arranged in the middle of the lower part of one side of the case cover (2), the guide rods (112) are symmetrically arranged at both sides inside the fixed frame (111), four first limit plates (113) are arranged between the guide rods (112) in a sliding manner at even intervals, the third spring (114) is arranged between the corner of the first limit plate (113) and the guide rods (112), two second fixed blocks (115) are arranged in the middle of two sides of a fixed frame (111), a first rotating rod (116) is arranged between the second fixed blocks (115) on the same side in a rotating mode, a rotating block (117) is arranged on one side of the first rotating rod (116), the rotating block (117) is matched with a first limiting plate (113), a first connecting block (118) is arranged on one side of the first rotating rod (116), a third sliding rail (119) is arranged in the middle of one side of the fixed frame (111), a pushing block (1110) is arranged on the third sliding rail (119) in a sliding mode, and the other end of the first connecting block (118) is connected with the pushing block (1110) in a sliding mode.
5. The portable multifunctional blackboard for outdoor teaching of Chinese education as claimed in claim 4, which further comprises a fixing device (12), the fixing device (12) comprises a second rotating shaft (120), a second fixing rod (121), a rotating plate (122), a third fixing rod (123), a second limiting plate (124), a second connecting block (125), a second supporting block (126) and a fourth spring (127), the second rotating shaft (120) is rotatably arranged on the upper portion of both sides of the case (1), the second fixing rod (121) is arranged on the lower portion of both sides of the case (1), the rotating plate (122) is arranged on the second rotating shaft (120), the third fixing rod (123) is arranged on the upper portion of both sides of the case cover (2), the second limiting plate (124) is slidably arranged on one side of the rotating plate (122), the second connecting block (125) is slidably arranged on one side of the rotating plate (122) in an up-down symmetric manner, the second connecting block (125) is matched with the second limiting plate (124), the second supporting blocks (126) are symmetrically arranged on one side of the rotating plate (122) up and down, and fourth springs (127) are arranged between the second supporting blocks (126) and the second connecting block (125) on the same side.
6. The portable multifunctional blackboard for outdoor teaching of Chinese education according to claim 5, characterized in that it further comprises a support mechanism (13), the support mechanism (13) comprises a third fixed block (130), a second rotating rod (131), a third supporting block (132), a limiting rod (133), an elastic member (134) and a connecting plate (135), the third fixed block (130) is arranged on both sides of the bottom of the box (1), the second rotating rod (131) is arranged on the third fixed block (130) in a rotating manner, the second rotating rod (131) is connected with the box (1) in a rotating manner, the third supporting block (132) is arranged on the second rotating rod (131), two limiting rods (133) are slidably arranged on the third fixed block (130), the limiting rods (133) are matched with the third supporting block (132), the elastic member (134) is arranged between the upper parts of the limiting rods (133) and the third fixed block (130), a connecting plate (135) is arranged between one sides of the limiting rods (133).
CN202120884594.2U 2021-04-27 2021-04-27 Portable multifunctional blackboard for outdoor teaching of Chinese education Expired - Fee Related CN214564170U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120884594.2U CN214564170U (en) 2021-04-27 2021-04-27 Portable multifunctional blackboard for outdoor teaching of Chinese education

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120884594.2U CN214564170U (en) 2021-04-27 2021-04-27 Portable multifunctional blackboard for outdoor teaching of Chinese education

Publications (1)

Publication Number Publication Date
CN214564170U true CN214564170U (en) 2021-11-02

Family

ID=78361541

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120884594.2U Expired - Fee Related CN214564170U (en) 2021-04-27 2021-04-27 Portable multifunctional blackboard for outdoor teaching of Chinese education

Country Status (1)

Country Link
CN (1) CN214564170U (en)

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Granted publication date: 20211102

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