CN213659752U - Teaching demonstration device for engineering cost - Google Patents
Teaching demonstration device for engineering cost Download PDFInfo
- Publication number
- CN213659752U CN213659752U CN202022646088.8U CN202022646088U CN213659752U CN 213659752 U CN213659752 U CN 213659752U CN 202022646088 U CN202022646088 U CN 202022646088U CN 213659752 U CN213659752 U CN 213659752U
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- rod
- slide bar
- fixedly connected
- wall
- adjusting
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- 238000010276 construction Methods 0.000 claims description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 4
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 4
- 241001330002 Bambuseae Species 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 241000209128 Bambusa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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Abstract
The utility model discloses an engineering cost is with teaching presentation device belongs to teaching aid technical field, and it includes two device bracing pieces, and the one side that two device bracing pieces are close to each other all has the pivot through bearing swing joint, the equal fixedly connected with articulated slab of one end that two pivots are close to each other, and the one side that two articulated slabs are close to each other has same show board through round pin axle swing joint. This teaching presentation device for engineering cost, through being provided with the accommodate slide bar, through will accommodate the slide bar promote left and make two fixed slide bars and the fixed slide bar in right side and accommodate the articulated position between the slide bar be in two show veneer middle parts, press down the show board and can accomplish foldingly, can make two fixed slide bars and the fixed slide bar in right side and accommodate the articulated position between the slide bar move to the right side to carry on spacingly through first reset spring's reaction force after the show board expandes, be convenient for fold and expand this presentation device, thereby improve this presentation device's practicality.
Description
Technical Field
The utility model belongs to the technical field of the teaching aid, specifically be a teaching presentation device for engineering cost.
Background
The project cost refers to the construction cost expected or actually paid out during the construction period of the constituent project. The comprehensive application of knowledge and skills in management, economics, engineering and the like to predict, plan, control, account, analyze, evaluate and the like the construction cost is called as construction cost management, and a demonstration device is needed to be used in teaching the construction cost profession.
Because traditional presentation device is bulky and do not have folding function, be not convenient for remove it when this presentation device is idle, need occupy great space when placing to reduced this presentation device's practicality, traditional presentation device leads to the student can't see clearly the content on the show board owing to receive the reflection of light and the unable regulation of angle of show board, thereby influence the teaching quality.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art's above-mentioned defect, the utility model provides an engineering cost is with teaching presentation device, it is great and do not have the folding function to have solved traditional presentation device volume, be not convenient for remove it when this presentation device is idle, need occupy great space when placing, thereby the practicality of this presentation device has been reduced, traditional presentation device is because the reflection that receives light and the angle of show board can't be adjusted, lead to the student can't see the content on the show board clearly, thereby influence the problem of teaching quality.
(II) technical scheme
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an engineering cost is with teaching presentation device, includes two device bracing pieces, and the one side that two device bracing pieces are close to each other all has the pivot through bearing swing joint, and the equal fixedly connected with articulated slab of one end that two pivots are close to each other, and the one side that two articulated slabs are close to each other has same show board through round pin axle swing joint, the show board comprises three show veneer, and just two adjacent show veneers pass through round pin axle swing joint, the fixed slot has been seted up to the bottom of show board, the inner wall sliding connection of fixed slot has two fixed slide bars and an adjust the slide bar, and the one end that two fixed slide bars are close to each other is through round pin axle swing joint, and the right-hand member of the fixed slide bar in right side and adjust the left end of slide bar pass.
The right-hand member fixed connection of first reset spring is at the left end of the fixed slide bar in left side, the left side of show board lower surface is connected with the last fixed surface of locking block, the adjustment tank has been seted up to the lower surface of locking block inner wall, the inner wall sliding connection of adjustment tank has the regulation pole, the top of adjusting the pole is connected with the lower fixed surface of locking lever, the upper surface of locking lever is the slope form, the surface of adjusting the pole has cup jointed second reset spring, second reset spring's upper and lower both ends difference fixed connection is at the lower surface of locking lever and the lower surface of adjustment tank inner wall, the right side of show board lower surface is connected with the last fixed surface of lockplate, the locking hole has been seted up to the lower.
As a further aspect of the present invention: the four corners of the lower surface of the device supporting rod are fixedly connected with universal wheels, and the right side surface of the right device supporting rod is fixedly connected with the left side surface of the gear box.
As a further aspect of the present invention: the upper surface of the inner wall of the gear box and the right side surface of the inner wall of the gear box are both movably connected with conical gears through bearings, the top ends of the upper conical gears penetrate through the bearings clamped on the upper surface of the inner wall of the gear box and are fixedly connected with the bottom ends of the threaded cylinders, and the outer surfaces of the two conical gears are meshed with each other.
As a further aspect of the present invention: the right flank of gear box passes through bearing and the left end swing joint who shakes the handle, the left end that shakes the handle passes the bearing of joint in the gear box right flank and the right flank fixed connection of right side conical gear.
As a further aspect of the present invention: the inner wall of the threaded cylinder is in threaded connection with the outer surface of the threaded rod, and the top end of the threaded rod is movably connected with a connecting hinge rod through a pin shaft.
As a further aspect of the present invention: the bottom of adjusting the pole is provided with the pull ring, and the right-hand member of right side pivot passes the joint at the bearing of right side device bracing piece left surface and the left surface fixed connection of connecting rod, the top of connecting the hinge bar is through round pin axle swing joint at the right flank of connecting rod.
(III) advantageous effects
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. this engineering cost is with teaching presentation device, through being provided with the fixed slot, fixed slide bar, first reset spring and accommodate the slide bar, when needs are folding to accomodate this presentation device, through promoting the articulated position that makes two fixed slide bars and right side fixed slide bar and accommodate between the slide bar left with accommodate the slide bar and be in two show veneer middle parts, press down the device bracing piece of show board both sides and remove to the middle part and can accomplish foldingly, thereby can make two fixed slide bars and the articulated position between the fixed slide bar in right side and the accommodate the slide bar move to the right side to the device bracing piece of both sides pulling when the show board is opened completely when needs expand this presentation device and carry on spacingly, be convenient for fold and expand this presentation device, thereby improve this presentation device's practicality.
2. This teaching presentation device for engineering cost through being provided with locking piece and lockplate, can drive locking piece and lockplate and be close to each other after the show board is folding, when lockplate contact locking lever, because the upper surface of locking lever can receive the extrusion and descend for the slope form, then the counter force of rethread second reset spring inserts the locking lever in the locking hole that lockplate lower surface set up, prevents that the show board is opened when removing this presentation device to be convenient for remove this presentation device.
3. This teaching presentation device for engineering cost, through being provided with the threaded rod, a screw thread section of thick bamboo, the gear box, connect hinge bar and connecting rod, it is rotatory to wave the handle through two bevel gear drive screw thread sections of thick bamboos through the rotation, the threaded rod can drive to connect the hinge bar and rise under the spacing of connecting the hinge bar, it is rotatory to utilize to connect the hinge bar to drive the connecting rod, thereby make the show board rotatory, prevent sunshine at show board surface reflection, thereby guarantee that the student can see clearly the content on the show board.
Drawings
Fig. 1 is a schematic structural view of a front view section of the present invention;
FIG. 2 is a schematic structural view of a front section of the gear box of the present invention;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1;
in the figure: the device comprises a device supporting rod 1, a rotating shaft 2, a display board 3, a hinged plate 4, a threaded rod 5, a threaded barrel 6, a gear box 7, a bevel gear 8, a shaking handle 9, a fixing groove 10, a fixing sliding rod 11, a first return spring 12, a locking block 13, a locking rod 14, a second return spring 15, an adjusting rod 16, an adjusting groove 17, a locking plate 18, an adjusting sliding rod 19, a connecting hinged rod 20, a universal wheel 21 and a connecting rod 22.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
As shown in fig. 1-3, the utility model provides a technical solution: a teaching demonstration device for engineering cost comprises two device supporting rods 1, wherein the mutually adjacent surfaces of the two device supporting rods 1 are movably connected with a rotating shaft 2 through a bearing, the mutually adjacent ends of the two rotating shafts 2 are fixedly connected with a hinged plate 4, the mutually adjacent surfaces of the two hinged plates 4 are movably connected with a same demonstration board 3 through a pin shaft, the demonstration board 3 consists of three demonstration single boards, two adjacent demonstration single boards are movably connected through the pin shaft, the bottom end of the demonstration board 3 is provided with a fixed groove 10, the inner wall of the fixed groove 10 is slidably connected with two fixed slide bars 11 and an adjusting slide bar 19, the mutually adjacent ends of the two fixed slide bars 11 are movably connected through the pin shaft, the right end of the right fixed slide bar 11 is movably connected with the left end of the adjusting slide bar 19 through the pin shaft, the left side surface of the inner wall of the, by providing the first return spring 12, when the display board 3 is completely opened, the hinge position between the fixed slide 11 and between the fixed slide 11 and the adjusting slide 19 is moved to the right by the reaction force of the first return spring 12, so as to perform a limit.
The right end of a first reset spring 12 is fixedly connected to the left end of a left fixed slide bar 11, the left side of the lower surface of the display board 3 is fixedly connected with the upper surface of a locking block 13, the lower surface of the inner wall of the locking block 13 is provided with an adjusting groove 17, the inner wall of the adjusting groove 17 is connected with an adjusting rod 16 in a sliding manner, the top end of the adjusting rod 16 is fixedly connected with the lower surface of a locking rod 14, the upper surface of the locking rod 14 is inclined and can be extruded to descend, then the locking rod 14 is inserted into a locking hole formed in the lower surface of a locking plate 18 by the reaction force of a second reset spring 15, so that the display board 3 is locked, the outer surface of the adjusting rod 16 is sleeved with the second reset spring 15, and the upper end and the lower end of the second reset spring 15 are fixedly connected to the lower surface, the right side of the lower surface of the display board 3 is fixedly connected with the upper surface of the locking plate 18, and the lower surface of the locking plate 18 is provided with a locking hole.
Specifically, as shown in fig. 1 and 2, the equal fixedly connected with universal wheel 21 in four corners department of device bracing piece 1 lower surface, through being provided with universal wheel 21, be convenient for remove this presentation device through utilizing universal wheel 21, the right flank of right side device bracing piece 1 and the left surface fixed connection of gear box 7, the upper surface of gear box 7 inner wall all has conical gear 8 through bearing swing joint with the right flank of inner wall, the top of top conical gear 8 passes the bearing of joint at gear box 7 inner wall upper surface and the bottom fixed connection of threaded cylinder 6, the surface of two conical gear 8 meshes mutually.
Specifically, as shown in fig. 2, the right side of the gear box 7 is movably connected with the left end of the rocking handle 9 through a bearing, the left end of the rocking handle 9 passes through the bearing clamped on the right side of the gear box 7 and is fixedly connected with the right side of the right bevel gear 8, the inner wall of the threaded cylinder 6 is in threaded connection with the outer surface of the threaded rod 5, the top end of the threaded rod 5 is movably connected with a connecting hinge rod 20 through a pin shaft, the bottom end of the adjusting rod 16 is provided with a pull ring, the right end of the right rotating shaft 2 passes through the bearing clamped on the left side of the right device supporting rod 1 and is fixedly connected with the left side of a connecting rod 22, the top end of the connecting hinge rod 20 is movably connected with the right side of the connecting rod 22 through a pin shaft, the threaded rod 5, the threaded cylinder 6, the gear box 7, the connecting hinge, threaded rod 5 can drive to connect articulated mast 20 and rise under the spacing of connecting articulated mast 20, utilizes to connect articulated mast 20 to drive connecting rod 22 rotatory to make show board 3 rotatory, prevent sunshine at 3 surface reflection of show board, thereby guarantee that the student can see the content on the show board 3 clearly.
The utility model discloses a theory of operation does:
s1, when the demonstration device needs to be folded and stored, the adjusting slide bar 19 is pushed leftwards to enable the hinged positions between the fixed slide bar 11 and between the fixed slide bar 11 and the adjusting slide bar 19 to be positioned in the middle of the two display single boards, the device supporting rods 1 on the two sides of the display board 3 are pressed to move towards the middle to complete folding, and when the demonstration device needs to be unfolded, the device supporting rods 1 on the two sides are pulled towards the two sides, and after the display board 3 is completely unfolded, the hinged positions between the fixed slide bar 11 and between the fixed slide bar 11 and the adjusting slide bar 19 are moved rightwards through the reaction force of the first return spring 12 to limit;
s2, when the display board 3 is folded, the locking block 13 and the locking plate 18 are driven to approach each other, when the locking plate 18 contacts the locking rod 14, the upper surface of the locking rod 14 is inclined and is pressed to descend, and then the locking rod 14 is inserted into a locking hole arranged on the lower surface of the locking plate 18 through the counterforce of the second return spring 15, so that the display board 3 is limited;
s3, when receiving the reflection of light, when leading to the student can't see the content on the show board clearly, wave handle 9 through the rotation and drive screw thread section of thick bamboo 6 rotatory through two bevel gear 8, threaded rod 5 can drive to connect articulated rod 20 and rise under the spacing of connecting articulated rod 20, utilizes to connect articulated rod 20 to drive connecting rod 22 rotatory to make show board 3 rotatory.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. The utility model provides an engineering cost is with teaching presentation device, includes two device bracing pieces (1), its characterized in that: one side of each of the two device supporting rods (1) which is close to each other is movably connected with a rotating shaft (2) through a bearing, one end of each of the two rotating shafts (2) which is close to each other is fixedly connected with a hinged plate (4), one side of each of the two hinged plates (4) which is close to each other is movably connected with a same display board (3) through a pin shaft, the display board (3) is composed of three display single boards, two adjacent display single boards are movably connected through a pin shaft, the bottom end of the display board (3) is provided with a fixed groove (10), the inner wall of the fixed groove (10) is connected with two fixed slide bars (11) and an adjusting slide bar (19) in a sliding way, one ends of the two fixed slide bars (11) which are close to each other are movably connected through a pin shaft, the right end of the right fixed slide bar (11) is movably connected with the left end of the adjusting slide bar (19) through a pin shaft, the left side surface of the inner wall of the fixing groove (10) is fixedly connected with a first return spring (12);
the right end of the first return spring (12) is fixedly connected with the left end of the left fixed slide bar (11), the left side of the lower surface of the display board (3) is fixedly connected with the upper surface of the locking block (13), the lower surface of the inner wall of the locking block (13) is provided with an adjusting groove (17), the inner wall of the adjusting groove (17) is connected with an adjusting rod (16) in a sliding way, the top end of the adjusting rod (16) is fixedly connected with the lower surface of the locking rod (14), the upper surface of the locking rod (14) is inclined, the outer surface of the adjusting rod (16) is sleeved with a second return spring (15), the upper end and the lower end of the second return spring (15) are respectively and fixedly connected with the lower surface of the locking rod (14) and the lower surface of the inner wall of the adjusting groove (17), the right side of the lower surface of the display board (3) is fixedly connected with the upper surface of the locking plate (18), and the lower surface of the locking plate (18) is provided with a locking hole.
2. A construction cost teaching demonstration apparatus according to claim 1, wherein: the four corners of the lower surface of the device supporting rod (1) are fixedly connected with universal wheels (21), and the right side surface of the right device supporting rod (1) is fixedly connected with the left side surface of the gear box (7).
3. A construction cost teaching demonstration apparatus according to claim 2, wherein: the upper surface of gear box (7) inner wall and the right flank of inner wall all have conical gear (8) through bearing swing joint, the bottom fixed connection of joint and screw thread section of thick bamboo (6) is passed on the top of top conical gear (8) at the bearing of gear box (7) inner wall upper surface, and the surface of two conical gear (8) meshes mutually.
4. A construction cost teaching demonstration apparatus according to claim 3, wherein: the right flank of gear box (7) passes through the bearing and the left end swing joint who shakes handle (9), the left end that shakes handle (9) passes the bearing of joint in gear box (7) right flank and the right flank fixed connection of right side conical gear (8).
5. The teaching demonstration device for engineering cost according to claim 4, characterized in that: the inner wall of the threaded cylinder (6) is in threaded connection with the outer surface of the threaded rod (5), and the top end of the threaded rod (5) is movably connected with a connecting hinge rod (20) through a pin shaft.
6. A construction cost teaching demonstration apparatus according to claim 5, wherein: the bottom of adjusting pole (16) is provided with the pull ring, and the right-hand member of right side pivot (2) passes the bearing of joint at right side device bracing piece (1) left surface and the left surface fixed connection of connecting rod (22), the top of connecting hinge bar (20) is through the right flank of round pin axle swing joint at connecting rod (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022646088.8U CN213659752U (en) | 2020-11-16 | 2020-11-16 | Teaching demonstration device for engineering cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022646088.8U CN213659752U (en) | 2020-11-16 | 2020-11-16 | Teaching demonstration device for engineering cost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213659752U true CN213659752U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022646088.8U Expired - Fee Related CN213659752U (en) | 2020-11-16 | 2020-11-16 | Teaching demonstration device for engineering cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213659752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115104869A (en) * | 2022-08-09 | 2022-09-27 | 广州挚道建设项目管理有限公司 | Auxiliary display device for construction cost budget |
-
2020
- 2020-11-16 CN CN202022646088.8U patent/CN213659752U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115104869A (en) * | 2022-08-09 | 2022-09-27 | 广州挚道建设项目管理有限公司 | Auxiliary display device for construction cost budget |
| CN115104869B (en) * | 2022-08-09 | 2024-03-26 | 广州挚道建设项目管理有限公司 | Auxiliary display device for budget of construction engineering cost |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210709 |
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| CF01 | Termination of patent right due to non-payment of annual fee |