CN114312112B - writing blackboard for english teaching - Google Patents

writing blackboard for english teaching Download PDF

Info

Publication number
CN114312112B
CN114312112B CN202210105058.7A CN202210105058A CN114312112B CN 114312112 B CN114312112 B CN 114312112B CN 202210105058 A CN202210105058 A CN 202210105058A CN 114312112 B CN114312112 B CN 114312112B
Authority
CN
China
Prior art keywords
fixing
seat
side panel
holes
main panel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202210105058.7A
Other languages
Chinese (zh)
Other versions
CN114312112A (en
Inventor
于霞
鞠桂红
李晓超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Vocational College of Science and Technology
Original Assignee
Shandong Vocational College of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shandong Vocational College of Science and Technology filed Critical Shandong Vocational College of Science and Technology
Priority to CN202210105058.7A priority Critical patent/CN114312112B/en
Publication of CN114312112A publication Critical patent/CN114312112A/en
Application granted granted Critical
Publication of CN114312112B publication Critical patent/CN114312112B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Drawing Aids And Blackboards (AREA)

Abstract

The application discloses a writing blackboard for English teaching, wherein a fixing seat is provided with fixing blocks which are matched with four corners of a mounting seat, the left side and the right side of a main panel are respectively provided with a plurality of left sliding grooves and right sliding grooves, the left sliding grooves are correspondingly provided with left side panels in a sliding manner, and the right sliding grooves are correspondingly provided with right side panels in a sliding manner. The bull stick can play the effect of supporting the main panel, can overturn it through rotating the main panel when the horizontal usage space of blackboard is less, makes its horizontal narrower face vertical setting and can realize the fixed of main panel with fixed block and mount pad are fixed, use in a flexible way. Simultaneously can pull out left side board and right side board and use, the left side board is equipped with a plurality ofly, can push into the main panel that will use up at every turn, greatly increased the writing space of blackboard, can pull out corresponding left side board or right side board when needing to review or explain once more the knowledge point before can, improved teaching efficiency.

Description

Writing blackboard for English teaching
Technical Field
The application relates to the technical field of English teaching aids, in particular to a writing blackboard for English teaching.
Background
The blackboard is not a black board surface, is a plane which can be repeatedly written by chalk in the traditional sense, is hard and is mostly used for teaching. The blackboard is generally made of wood board, ground glass or the like, and can be written on by using specific writing materials such as chalks and the like, and most of the blackboard is black, dark green, white or beige.
The blackboard that present english teaching was used is commonly influenced by panel size and use place, and the panel is too big then remove inconvenient, if use place space is little even put and all becomes the problem, if the panel is too little then the space that can write is too little, needs frequent clearance to writing the content on the panel, need write many times to some key, difficult points like this, seriously has wasted teaching time.
Disclosure of Invention
The technical problems to be solved by the application are as follows: to the not enough that prior art exists, provide a blackboard is write to english teaching, can adjust horizontal width through rotatory panel to adapt to the demand in use place, a plurality of left side boards and right side boards have in addition to have increased the writing space, have reduced the frequency of clearance.
In order to solve the technical problems, the technical scheme of the application is as follows:
the writing blackboard for English teaching comprises a main panel, wherein an installation seat is fixedly arranged on the back side of the main panel, a fixing seat is arranged on the installation seat, the lower part of the fixing seat is connected with a supporting rod, a supporting seat is arranged at the lower part of the supporting rod, and a plurality of universal wheels are arranged at the lower part of the supporting seat;
the fixing seat is a square mounting seat, fixing blocks corresponding to four corners of the mounting seat are arranged on the fixing seat, and the fixing blocks are connected with the mounting seat through bolts;
the left and right sides of main panel are equipped with a plurality of left spouts and right spout respectively, and a plurality of correspond the slip in the left spout and be equipped with the left side board, a plurality of correspond the slip in the right spout and be equipped with the right side board, a plurality of with left side board with the first fixed orifices that the right side board suited are seted up to the up end of main panel, left side board with the up end both sides of right side board are equipped with respectively with first fixed orifices suited second fixed orifices and third fixed orifices, works as left side board or when the right side board is expanded, first fixed orifices with the second fixed orifices corresponds, works as left side board or when the right side board is folded, first fixed orifices with the third fixed orifices corresponds.
Preferably, the free end symmetry of bull stick is equipped with two stoppers, the inboard of changeing the groove be equipped with the spacing groove that the stopper suited, the changeing the groove and offered and hold the stopper stretches into the passageway of spacing groove.
Preferably, the fixing base circumference is equipped with a plurality of slots, the top of bracing piece be equipped with a plurality of the inserted block that the slot suited, the fixing base is equipped with a plurality of runs through the first jack of slot, the inserted block be equipped with a plurality of with the second jack that first jack suited, the inserted block with fixing base bolted connection.
Preferably, pull handles are arranged at one ends of the outer sides of the left side panel and the right side panel.
Preferably, the back sides of the left side panel and the right side panel are respectively provided with a guide block, and one sides of the left sliding groove and the right sliding groove are respectively provided with a guide groove which is matched with the guide blocks.
Preferably, a sleeve is arranged between the supporting rod and the supporting seat, the sleeve is sleeved on the outer side of the supporting rod, the supporting rod is axially provided with a plurality of first limiting holes, the sleeve is axially provided with a plurality of second limiting holes adaptive to the first limiting holes, and the first limiting holes are connected with the second limiting holes through bolts.
Preferably, the upper part of the sleeve is hollow, and the bottom of the sleeve is connected with the supporting seat through a screw bolt.
Preferably, the universal wheel comprises two symmetrically arranged guard plates and a rotating wheel arranged between the two guard plates, a brake block is rotationally arranged on the guard plates, and a plurality of brake saw teeth which are adaptive to the rotating wheel are arranged at the free ends of the brake block.
Due to the adoption of the technical scheme, the application has the beneficial effects that:
the application relates to a writing blackboard for English teaching, which comprises a main panel, wherein an installation seat is fixedly arranged on the back side of the main panel, a fixed seat is arranged on the installation seat, the lower part of the fixed seat is connected with a supporting rod, the lower part of the supporting rod is provided with a supporting seat, and the lower part of the supporting seat is provided with a plurality of universal wheels; the fixing seat is a square mounting seat, fixing blocks corresponding to four corners of the mounting seat are arranged on the fixing seat, and the fixing blocks are connected with the mounting seat through bolts; the left and right sides of main panel are equipped with a plurality of left spouts and right spout respectively, and a plurality of correspond the slip in the left spout and be equipped with the left side board, a plurality of correspond the slip in the right spout and be equipped with the right side board, a plurality of with left side board with the first fixed orifices that the right side board suited are seted up to the up end of main panel, left side board with the up end both sides of right side board are equipped with respectively with first fixed orifices suited second fixed orifices and third fixed orifices, works as left side board or when the right side board is expanded, first fixed orifices with the second fixed orifices corresponds, works as left side board or when the right side board is folded, first fixed orifices with the third fixed orifices corresponds. The bull stick can play the effect of supporting the main panel, can overturn it through rotating the main panel when the horizontal usage space of blackboard is less, makes its horizontal narrower face vertical setting and can realize the fixed of main panel with fixed block and mount pad are fixed, use in a flexible way. Simultaneously can pull out left side board and right side board and use, the left side board is equipped with a plurality ofly, can push into the main panel that will use up at every turn, greatly increased the writing space of blackboard, can pull out corresponding left side board or right side board when need review or the person explain once more to the knowledge point before can, improved teaching efficiency.
The free end of the rotating rod is symmetrically provided with two limiting blocks, the inner side of the rotating groove is provided with a limiting groove which is matched with the limiting blocks, and the rotating groove is provided with a channel which is used for accommodating the limiting blocks to extend into the limiting groove. The cooperation of stopper and spacing groove can guarantee that pivoted in-process main panel can not deviate from the bull stick, has guaranteed safe in utilization, and the bull stick plays the effect of rotation fulcrum to the main panel simultaneously, has practiced thrift the strength.
The fixing base circumference is equipped with a plurality of slots, the top of bracing piece be equipped with a plurality of the inserted block that the slot suited, the fixing base is equipped with a plurality of runs through the first jack of slot, the inserted block be equipped with a plurality of with the second jack that first jack suited, the inserted block with fixing base bolted connection. Through the inclination that can adjust the main panel with the cooperation of inserted block and different slot, effectual reflection of light scheduling problem of avoiding, first jack and second jack can guarantee that jack and fixing base installation are firm simultaneously, have increased the security of use.
The left side panel with the outside one end of right side panel all is equipped with the pull handle, can be convenient fold left side panel and right side panel with expand, convenient to use.
The left side board with the dorsal part of right side board all is equipped with the guide block, left spout with one side of right spout respectively be equipped with the guide slot that the guide block suited. The guide block can ensure that the left side panel and the right side panel move smoothly in the left sliding groove and the right sliding groove, and simultaneously play a limiting function, prevent that the left side panel and the right side panel from deviating from in the left sliding groove and the right sliding groove, and for convenience in fixing, when the guide block is abutted with the two ends of the left sliding groove or the right sliding groove, the first fixing hole and the second fixing hole are aligned or the first fixing hole and the third fixing hole are aligned.
The support rod with be equipped with the sleeve pipe between the supporting seat, the sleeve pipe cover is established the outside of support rod, the support rod is equipped with a plurality of first spacing holes along the axial, the sleeve pipe along the axial be equipped with a plurality of with the second spacing hole that first spacing hole suited, first spacing hole with the second spacing hole passes through bolted connection, cooperates through first spacing hole and the second spacing hole of co-altitude, can realize the support rod and reciprocate in the sleeve pipe to adjust the height of main panel, convenient to use.
The upper part of the sleeve is hollow, and the bottom of the sleeve is connected with the supporting seat through bolts. The sleeve can be conveniently disassembled, so that the sleeve is convenient to replace or overhaul.
The universal wheel comprises two guard plates which are symmetrically arranged and a rotating wheel which is arranged between the two guard plates, wherein a brake block is rotationally arranged on the guard plates, and a plurality of brake saw teeth which are adaptive to the rotating wheel are arranged at the free ends of the brake block. The brake saw teeth can firmly clamp and fix the rotating wheel, so that the universal wheel is prevented from rotating in the using process.
Drawings
FIG. 1 is a perspective view of an embodiment of the present application;
FIG. 2 is a front view of an embodiment of the present application;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a cross-sectional view taken along the direction B-B of FIG. 2;
FIG. 5 is a right side view of an embodiment of the present application;
FIG. 6 is a cross-sectional view of FIG. 5 taken along the direction C-C;
fig. 7 is an enlarged view at D in fig. 5;
fig. 8 is a schematic structural view of the main panel of fig. 1;
fig. 9 is an enlarged view at E in fig. 8;
FIG. 10 is a schematic view of the structure of the left side panel of FIG. 1;
FIG. 11 is a schematic view of the fixing base in FIG. 1;
wherein: 1. a main panel; 2. a mounting base; 3. a fixing seat; 4. a support rod; 5. a support base; 6. a universal wheel; 7. a rotating rod; 8. a rotary groove; 9. a fixed block; 10. a left chute; 11. a right chute; 12. a left side panel; 13. a right side panel; 14. a first fixing hole; 15. a second fixing hole; 16. a third fixing hole; 17. A limiting block; 18. a limit groove; 19. a channel; 20. a slot; 21. inserting blocks; 22. a first jack; 23. A second jack; 24. a pull handle; 25. a guide block; 26. a guide groove; 27. a sleeve; 28. a first limiting hole; 29. a second limiting hole; 30. a rotating wheel; 31. a guard board; 32. a brake pad; 33. brake saw teeth.
Detailed Description
The application is further illustrated by the following examples.
As shown in fig. 1-11, a writing blackboard for English teaching comprises a main panel 1, wherein an installation seat 2 is fixedly arranged on the back side of the main panel 1, a fixed seat 3 is arranged on the installation seat 2, the lower part of the fixed seat 3 is connected with a supporting rod 4, the lower part of the supporting rod 4 is provided with a supporting seat 5, and the lower part of the supporting seat 5 is provided with a plurality of universal wheels 6; the fixing seat 3 is provided with a cylindrical rotating rod 7 at one side close to the mounting seat 2, one end of the rotating rod 7 is fixedly connected with the fixing seat 3, the other end of the rotating rod extends out of the fixing seat 3, the mounting seat 2 is provided with a rotating groove 8 which is adaptive to the rotating rod 7, so that the fixing seat 3 can rotate around the rotating groove 8, in the embodiment, the mounting seat 2 is a square mounting seat 2, the fixing seat 3 is provided with fixing blocks 9 which are adaptive to four corners of the mounting seat 2, and the fixing blocks 9 are connected with the mounting seat 2 through bolts; the left and right sides of main panel 1 are equipped with a plurality of left spout 10 and right spout 11 respectively, and a plurality of correspond the slip in the left spout 10 and be equipped with left side board 12, a plurality of correspond the slip in the right spout 11 and be equipped with right side board 13, left side board 12 and right side board 13 all are equipped with two in this embodiment, and two left side board 12 and two right side boards 13 symmetry set up respectively, and left side board 12 and right side board 13 shape structure are unanimous, four with left side board 12 with first fixed orifices 14 that right side board 13 suited are seted up to the up end of main panel 1, left side board 12 with the up end both sides of right side board 13 are equipped with respectively with second fixed orifices 15 and third fixed orifices 16 that suits with first fixed orifices 14, when left side board 12 or right side board 13 expands, first fixed orifices 14 with second fixed orifices 15 are to it and pass through the bolt fastening, when left side board 12 or right side board 13 folds, first fixed orifices 14 with third fixed orifices 16 are to it through the bolt fastening. In this embodiment, the transverse dimension and the longitudinal dimension of the main panel 1 are inconsistent, the rotating rod 7 can play a role in supporting the main panel 1, when the transverse use space of the blackboard is smaller, the blackboard can be overturned through rotating the main panel 1, so that the transverse narrower surface of the blackboard is vertically arranged, the fixing block 9 and the mounting seat 2 are fixed, the main panel 1 can be fixed, the use is flexible, and the use environment is fully considered. Simultaneously can pull out left side board 12 and right side board 13 and use, left side board 12 is equipped with a plurality ofly, can be at every turn with the push-in main board 1 that finishes, greatly increased the writing space of blackboard, can pull out corresponding left side board 12 or right side board 13 when needing to review or explain once more the knowledge point before can, improved teaching efficiency.
The free end symmetry of bull stick 7 is equipped with two stopper 17, the inboard of changeing the groove 8 be equipped with limit block 17 suited spacing groove 18, changeing the groove 8 and having offered the holding stopper 17 stretches into to the passageway 19 of spacing groove 18. The cooperation of stopper 17 and spacing groove 18 can guarantee that pivoted in-process main panel 1 can not deviate from bull stick 7, has guaranteed safe in utilization, and bull stick 7 plays the effect of rotation fulcrum to main panel 1 simultaneously, has practiced thrift the strength.
The fixing seat 3 is circumferentially provided with a plurality of slots 20, the top end of the supporting rod 4 is provided with a plurality of inserting blocks 21 which are adaptive to the slots 20, the fixing seat 3 is provided with a plurality of first inserting holes 22 which penetrate through the slots 20, the inserting blocks 21 are provided with a plurality of second inserting holes 23 which are adaptive to the first inserting holes 22, and the inserting blocks 21 are in bolt connection with the fixing seat 3. Through the inclination that can adjust main panel 1 with the cooperation of inserted block 21 and different slot 20, effectual reflection of light scheduling problem of avoiding, first jack 22 and second jack 23 can guarantee that the jack is firm with fixing base 3 installation simultaneously, have increased the security of use, for fixed firm, second jack 23 is equipped with two in this embodiment, and every slot 20 corresponds to set up two first jacks 22.
The pull handles 24 are arranged at the outer side ends of the left side panel 12 and the right side panel 13, so that the left side panel 12 and the right side panel 13 can be conveniently folded and unfolded, and the use is convenient.
The back sides of the left side panel 12 and the right side panel 13 are respectively provided with a guide block 25, and one sides of the left chute 10 and the right chute 11 are respectively provided with a guide groove 26 which is matched with the guide blocks 25. The guide block 25 can ensure that the left side panel 12 and the right side panel 13 move smoothly in the left chute 10 and the right chute 11, and simultaneously play a limiting role to prevent the left side panel 12 and the right side panel 13 from falling out of the left chute 10 and the right chute 11, and for convenience in fixing, when the guide block 25 abuts against two ends of the left chute 10 or the right chute 11, the first fixing hole 14 and the second fixing hole 15 are aligned or the first fixing hole 14 and the third fixing hole 16 are aligned.
Be equipped with sleeve pipe 27 between bracing piece 4 with supporting seat 5, sleeve pipe 27 cover is established the outside of supporting rod 4, bracing piece 4 is equipped with a plurality of first spacing holes 28 along the axial, sleeve pipe 27 along the axial be equipped with a plurality of with the second spacing hole 29 that first spacing hole 28 suited, first spacing hole 28 with second spacing hole 29 passes through bolted connection, through the cooperation of first spacing hole 28 and the second spacing hole 29 of co-altitude, can realize that bracing piece 4 reciprocates in sleeve pipe 27 to adjust the height of main panel 1, convenient to use.
The upper part of the sleeve 27 is hollow, and the bottom of the sleeve 27 is connected with the supporting seat 5 through bolts. The sleeve 27 can be conveniently disassembled, so that the sleeve 27 is convenient to replace or repair.
The universal wheel 6 comprises two symmetrically arranged guard plates 31 and a rotating wheel 30 arranged between the two guard plates 31, a brake block 32 is rotatably arranged on the guard plates 31, and a plurality of brake saw teeth 33 which are adaptive to the rotating wheel 30 are arranged at the free ends of the brake block 32. The brake saw teeth 33 can firmly clamp and fix the rotating wheel 30, so that the universal wheel 6 is prevented from rotating in the use process.
It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Furthermore, it should be understood that various changes and modifications can be made by one skilled in the art after reading the teachings of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.

Claims (3)

1. English teaching is with writing blackboard, including main panel, its characterized in that: the back side of the main panel is fixedly provided with a mounting seat, a fixing seat is arranged on the mounting seat, the lower part of the fixing seat is connected with a supporting rod, the lower part of the supporting rod is provided with a supporting seat, and the lower part of the supporting seat is provided with a plurality of universal wheels;
the fixing seat is a square mounting seat, fixing blocks corresponding to four corners of the mounting seat are arranged on the fixing seat, and the fixing blocks are connected with the mounting seat through bolts;
the left side and the right side of the main panel are respectively provided with a plurality of left sliding grooves and right sliding grooves, a left side panel is correspondingly arranged in the left sliding grooves, a right side panel is correspondingly arranged in the right sliding grooves, a plurality of first fixing holes which are matched with the left side panel and the right side panel are formed in the upper end face of the main panel, a second fixing hole and a third fixing hole which are matched with the first fixing holes are respectively formed in the two sides of the upper end face of the left side panel and the two sides of the upper end face of the right side panel, when the left side panel or the right side panel is unfolded, the first fixing holes are corresponding to the second fixing holes, and when the left side panel or the right side panel is folded, the first fixing holes are corresponding to the third fixing holes;
two limiting blocks are symmetrically arranged at the free end of the rotating rod, a limiting groove which is adaptive to the limiting block is arranged at the inner side of the rotating groove, and a channel which is used for accommodating the limiting block and extends into the limiting groove is formed in the rotating groove;
the fixing seat is circumferentially provided with a plurality of slots, the top end of the supporting rod is provided with a plurality of inserting blocks which are matched with the slots, the fixing seat is provided with a plurality of first inserting holes which penetrate through the slots, the inserting blocks are provided with a plurality of second inserting holes which are matched with the first inserting holes, and the inserting blocks are connected with the fixing seat through bolts;
the back sides of the left side panel and the right side panel are respectively provided with a guide block, and one sides of the left sliding chute and the right sliding chute are respectively provided with a guide groove which is matched with the guide blocks;
a sleeve is arranged between the support rod and the support seat, the sleeve is sleeved on the outer side of the support rod, the support rod is axially provided with a plurality of first limiting holes, the sleeve is axially provided with a plurality of second limiting holes which are adaptive to the first limiting holes, and the first limiting holes and the second limiting holes are connected through bolts;
the upper part of the sleeve is hollow, and the bottom of the sleeve is connected with the supporting seat through bolts.
2. The writing blackboard for english teaching according to claim 1, wherein: the outside one end of left side board with the right side board all is equipped with the pull handle.
3. The writing blackboard for english teaching according to claim 1, wherein: the universal wheel comprises two guard plates which are symmetrically arranged and a rotating wheel which is arranged between the two guard plates, wherein a brake block is rotationally arranged on the guard plates, and a plurality of brake saw teeth which are adaptive to the rotating wheel are arranged at the free ends of the brake block.
CN202210105058.7A 2022-01-28 2022-01-28 writing blackboard for english teaching Active CN114312112B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210105058.7A CN114312112B (en) 2022-01-28 2022-01-28 writing blackboard for english teaching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210105058.7A CN114312112B (en) 2022-01-28 2022-01-28 writing blackboard for english teaching

Publications (2)

Publication Number Publication Date
CN114312112A CN114312112A (en) 2022-04-12
CN114312112B true CN114312112B (en) 2023-08-22

Family

ID=81031126

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210105058.7A Active CN114312112B (en) 2022-01-28 2022-01-28 writing blackboard for english teaching

Country Status (1)

Country Link
CN (1) CN114312112B (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075789U (en) * 1993-06-30 1995-01-27 さくら精機株式会社 Writing board equipment
CN106564332A (en) * 2016-11-10 2017-04-19 成都秉德科技有限公司 Teaching question board
CN208530081U (en) * 2018-02-06 2019-02-22 华东交通大学理工学院 Multi-functional blackboard suitable for English teaching
CN109733095A (en) * 2019-01-17 2019-05-10 德州学院 Multifunctional mathmatical drawing auxiliary device
CN208985462U (en) * 2018-08-15 2019-06-14 西安医学院 A kind of English teaching vocabulary displaying device
CN211641603U (en) * 2020-02-27 2020-10-09 燕山大学 Teaching blackboard
CN212353384U (en) * 2020-04-07 2021-01-15 渤海大学 English teaching board convenient to operation demonstration
CN113611162A (en) * 2021-07-22 2021-11-05 江苏经贸职业技术学院 Multimode english teaching device of english teaching

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH075789U (en) * 1993-06-30 1995-01-27 さくら精機株式会社 Writing board equipment
CN106564332A (en) * 2016-11-10 2017-04-19 成都秉德科技有限公司 Teaching question board
CN208530081U (en) * 2018-02-06 2019-02-22 华东交通大学理工学院 Multi-functional blackboard suitable for English teaching
CN208985462U (en) * 2018-08-15 2019-06-14 西安医学院 A kind of English teaching vocabulary displaying device
CN109733095A (en) * 2019-01-17 2019-05-10 德州学院 Multifunctional mathmatical drawing auxiliary device
CN211641603U (en) * 2020-02-27 2020-10-09 燕山大学 Teaching blackboard
CN212353384U (en) * 2020-04-07 2021-01-15 渤海大学 English teaching board convenient to operation demonstration
CN113611162A (en) * 2021-07-22 2021-11-05 江苏经贸职业技术学院 Multimode english teaching device of english teaching

Also Published As

Publication number Publication date
CN114312112A (en) 2022-04-12

Similar Documents

Publication Publication Date Title
CN114312112B (en) writing blackboard for english teaching
CN101234580A (en) Multifunctional painting table for easelback
CN218170279U (en) High altitude bar planting drilling support
CN111208004A (en) Dual-purpose instrument for static sounding cross plate test
CN215978356U (en) Scaffold frame supporting platform for building
CN207725109U (en) English teaching auxiliary device
CN214759810U (en) Draft holder for engineering management personnel
CN211029965U (en) Board marking tool
CN212415351U (en) Screen convenient to remove
CN208884525U (en) Grey frame is played for bored concrete pile
CN210631654U (en) Table hitting angle of right-angle billiard table
CN113142805A (en) Draft holder for engineering management personnel
CN201624307U (en) Art designing and laptop desk
CN220269143U (en) Air bag type nitrogen buffer tank
CN209846338U (en) Foldable tool bag
CN218843666U (en) Construction support that can install fast
CN220539294U (en) Anti-cracking structure of building wood component
CN215532607U (en) A folding desk for noon break
CN214195865U (en) Ground support box
CN212280253U (en) Umbrella with residual rainwater is collected
CN220868049U (en) Foldable and portable railing
CN219261687U (en) Building construction frame
CN219573816U (en) Rebound instrument for municipal road supervision
CN211354195U (en) Device is used in design of view guardrail
CN221083148U (en) Indoor design drawing operation frame

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant