CN210743302U

CN210743302U - Building engineering cost teaching presentation device

Info

Publication number: CN210743302U
Application number: CN201921493910.2U
Authority: CN
Inventors: 胡敏歆
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-06-12
Anticipated expiration: 2029-09-10

Abstract

The utility model discloses a building engineering cost presentation device that imparts knowledge to students, including the support with fix the demonstration board on the support, the upper and lower side of demonstration board is fixed with draw runner and lower draw runner respectively, goes up the draw runner and is provided with two slide bars that the structure is identical down between the draw runner, the upper and lower both ends of slide bar sliding connection respectively on draw runner and lower draw runner, has cup jointed the sliding sleeve on the slide bar, and is fixed with the hold-down mechanism who is used for compressing tightly the paper on the sliding sleeve. This kind of building engineering cost teaching presentation device, be convenient for remove the demonstration board through mobilizable support, the convenient teaching is used, will adjust the interval between two slide bars according to the length of construction drawing, thereby make hold-down mechanism on two sliding sleeves can compress tightly two vertical sides of construction drawing respectively, and then make the construction drawing can fix on the demonstration board, so that the information that shows on to the construction drawing of contrast construction drawing carries out the cost calculation teaching, improve teaching effect.

Description

Building engineering cost teaching presentation device

Technical Field

The utility model relates to a teaching aid field specifically is a building engineering cost teaching presentation device.

Background

The construction cost generally refers to the cost for performing a certain project construction, i.e., the total cost from the project construction to the completion acceptance. It is composed of construction and installation engineering cost, equipment and tool purchase cost, other engineering construction cost, preparation cost and tax. The construction project cost is generally estimated by construction drawings, the construction drawings are ranked one by one according to design drawings, cost general information price, bidding documents, construction contracts and selected estimation quota, a project amount list is calculated, and finally the total price of the construction project is calculated.

The existing demonstration equipment for construction engineering cost teaching is not convenient for placing construction drawings, so that cost calculation teaching is not convenient for comparing the construction drawings.

In order to solve the problems, a building engineering cost teaching demonstration device is provided.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a building engineering cost teaching presentation device, in order to solve above-mentioned technical problem, the utility model provides a following technical scheme:

the utility model relates to a building engineering cost presentation device that imparts knowledge to students, including the support with fix the demonstration board on the support, the upper and lower side of demonstration board is fixed with draw runner and lower draw runner respectively, goes up the draw runner and is provided with two slide bars that the structure is identical down between the draw runner, the upper and lower both ends of slide bar sliding connection respectively on draw runner and lower draw runner, has cup jointed the sliding sleeve on the slide bar, and is fixed with the hold-down mechanism who is used for compressing tightly the paper on the sliding sleeve.

Preferably, hold-down mechanism includes smooth box, and smooth box one side towards the demonstration board is the opening form, and smooth box inside sliding connection has the briquetting, passes through spring coupling between briquetting and the inner wall of smooth box, and the one side relative with the opening lateral wall on the smooth box is provided with the pressure bar subassembly.

Preferably, the compression bar assembly comprises a through hole formed in the sliding box and lug plates fixed on two sides of the through hole, the lug plates are connected with eccentric wheels in a fixed-shaft rotating mode, and levers are fixed on the eccentric wheels.

Preferably, the lever is fixed at the edge of the eccentric wheel with a smaller distance from the rotating shaft, and one side of the eccentric wheel with a larger distance from the rotating shaft can pass through the through hole to be in contact with the pressing block.

Preferably, the lower end of the sliding rod is fixedly provided with a sliding block, the sliding block is connected in a sliding groove in the lower sliding strip in a sliding mode, the bottom surface of the sliding block is movably embedded with a ball, and the sliding block is connected with a bolt in a threaded mode.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: through two slide bars of installation on the demonstration board, and slidable mounting hold-down mechanism on the slide bar, mobilizable support is convenient for remove the demonstration board, the convenient teaching is used, will adjust the interval between two slide bars according to the length of construction drawing, thereby make hold-down mechanism on two sliding sleeves compress tightly two vertical sides of construction drawing respectively, and then make the construction drawing can fix on the demonstration board, so that carry out the cost calculation teaching to the information that shows on the construction drawing to the comparison construction drawing, improve teaching effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of the general assembly structure of the construction cost teaching demonstration device of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1;

fig. 3 is a schematic view of a cross-sectional structure B-B in fig. 1.

In the figure: 1-a scaffold; 2-demonstration board; 3, sliding strip mounting; 4-lower sliding strip; 5-a slide bar; 6-sliding sleeve; 7-a slide block; 8-a pressing mechanism; 9-bolt; 10-a ball bearing; 11-a slide box; 12-a through hole; 13-ear plate; 14-eccentric wheel; 15-a lever; 16-briquetting; 17-spring.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-3, a construction cost teaching demonstration device comprises a support 1 and a demonstration board 2 fixed on the support 1, wherein the upper side edge and the lower side edge of the demonstration board 2 are respectively fixed with an upper sliding strip 3 and a lower sliding strip 4, two sliding rods 5 with the same structure are arranged between the upper sliding strip 3 and the lower sliding strip 4, the upper end and the lower end of each sliding rod 5 are respectively connected to the upper sliding strip 3 and the lower sliding strip 4 in a sliding manner, a sliding sleeve 6 is sleeved on each sliding rod 5, and a pressing mechanism 8 for pressing paper is fixed on each sliding sleeve 6.

In this embodiment, the pressing mechanism 8 includes a slide box 11, one side of the slide box 11 facing the demonstration board 2 is open, a pressing block 16 is slidably connected inside the slide box 11, the pressing block 16 is connected with the inner wall of the slide box 11 through a spring 17, and a pressing rod assembly is arranged on one side of the slide box 11 opposite to the side wall of the opening.

In this embodiment, the pressing rod assembly includes a through hole 12 formed on the sliding box 11 and ear plates 13 fixed on both sides of the through hole 12, an eccentric wheel 14 is connected to the ear plates 13 in a fixed-axis rotating manner, and a lever 15 is fixed on the eccentric wheel 14.

In this embodiment, the lever 15 is fixed at the edge of the eccentric wheel 14 with a smaller distance from the rotating shaft, and the side of the eccentric wheel 14 with a larger distance from the rotating shaft can pass through the through hole 12 to contact with the pressing block 16.

In this embodiment, a sliding block 7 is fixed at the lower end of the sliding rod 5, the sliding block 7 is slidably connected in a sliding groove inside the lower sliding strip 4, a ball 10 is movably embedded in the bottom surface of the sliding block 7, and a bolt 9 is connected to the sliding block 7 in a threaded manner.

The utility model discloses a principle and advantage: this kind of building engineering cost teaching presentation device, when using, the operation is as follows: the movable support 1 is convenient to move the demonstration board 2 and is convenient for teaching, the distance between the two sliding rods 5 is adjusted according to the length of the construction drawing, so that the pressing mechanisms 8 on the two sliding sleeves 6 can respectively press two vertical side edges of the construction drawing, the construction drawing can be fixed on the demonstration board 2, the construction cost calculation teaching can be conveniently carried out on the information displayed on the construction drawing by contrasting the construction drawing, and the teaching effect is improved;

the operation of adjusting the distance between the two slide bars 5 is as follows: firstly, loosening the bolt 9 to enable the sliding block 7 to drive the sliding rod 5 to move along the trend of the lower sliding groove 4, wherein the rolling ball 10 at the bottom of the sliding block 7 is in rolling contact with the inner groove bottom of the lower sliding strip 4, so that the friction between the sliding block 7 and the lower sliding strip 4 can be reduced, the smoothness of the sliding block 7 during moving is improved, after the distance between the two sliding rods 5 is adjusted, screwing the bolt 9 to enable the sliding block 7 not to move on the lower sliding strip 4, further realizing the adjustment of the distance between the two sliding rods 5, also being capable of adjusting the positions of the two sliding rods 5 on the demonstration board 2 and adjusting the height of the pressing mechanism 8, thereby conveniently fixing the construction drawing at any position of the demonstration board 2 and being convenient to operate;

the pressing mechanism 8 performs pressing operation on the construction drawing as follows: pulling lever 15 makes eccentric wheel 14 rotate, and make eccentric wheel 14 far away end and briquetting 16 do not produce the effect of power, thereby make briquetting 16 retract in smooth box 11 under spring 17's effort, leave the clearance between briquetting 16 and the demonstration board 2 promptly, put the construction drawing between briquetting 16 and demonstration board 2, and pull lever 15 makes eccentric wheel 14 far away end to briquetting 16 exert pressure, make briquetting 16 tensile and be close to demonstration board 2 to spring 17, when lever 15 is perpendicular to demonstration board 2, eccentric wheel 14 is the biggest to the extrusion force of briquetting 16 this moment, thereby compress tightly the construction drawing, and is simple in operation convenient, time saving and labor saving, when the construction drawing need be taken off, pull lever 15 makes eccentric wheel 14 rotate, briquetting 16 keeps away from demonstration board 2 under spring 17's effort, it can to take off the construction drawing.

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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a building engineering cost teaching presentation device, includes support (1) and demonstration board (2) of fixing on support (1), its characterized in that: the demonstration board is characterized in that an upper sliding strip (3) and a lower sliding strip (4) are fixed to the upper side edge and the lower side edge of the demonstration board (2) respectively, two sliding rods (5) with the same structures are arranged between the upper sliding strip (3) and the lower sliding strip (4), the upper end and the lower end of each sliding rod (5) are connected to the upper sliding strip (3) and the lower sliding strip (4) in a sliding mode respectively, a sliding sleeve (6) is sleeved on each sliding rod (5), and a pressing mechanism (8) used for pressing paper is fixed to each sliding sleeve (6).

2. The construction cost teaching demonstration device according to claim 1, characterized in that: the pressing mechanism (8) comprises a sliding box (11), one side, facing the demonstration board (2), of the sliding box (11) is in an open shape, a pressing block (16) is connected inside the sliding box (11) in a sliding mode, the pressing block (16) is connected with the inner wall of the sliding box (11) through a spring (17), and a pressing rod assembly is arranged on one side, opposite to the side wall of the opening, of the sliding box (11).

3. The construction cost teaching demonstration device according to claim 2, wherein: the compression bar assembly comprises a through hole (12) formed in the sliding box (11) and lug plates (13) fixed to two sides of the through hole (12), eccentric wheels (14) are rotatably connected to the lug plates (13) in a dead axle mode, and levers (15) are fixed to the eccentric wheels (14).

4. The construction cost teaching demonstration device according to claim 3, wherein: the lever (15) is fixed at the edge of the eccentric wheel (14) with a smaller distance from the rotating shaft, and one side of the eccentric wheel (14) with a larger distance from the rotating shaft can pass through the through hole (12) to be in contact with the pressing block (16).

5. The construction cost teaching demonstration device according to claim 1, characterized in that: the lower extreme of slide bar (5) is fixed with slider (7), slider (7) sliding connection is in the inside spout of draw runner (4) down, and the bottom surface activity scarf joint of slider (7) has ball (10), threaded connection has bolt (9) on slider (7).