CN215730381U

CN215730381U - Demonstration device of building engineering cost teaching ideal

Info

Publication number: CN215730381U
Application number: CN202122012442.6U
Authority: CN
Inventors: 尹红梅
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-25
Filing date: 2021-08-25
Publication date: 2022-02-01
Anticipated expiration: 2031-08-25

Abstract

The utility model relates to the technical field of construction engineering cost, in particular to an ideal demonstration device for construction engineering cost teaching, which comprises a demonstration device body, wherein the demonstration device body comprises a moving structure, a demonstration board A, a demonstration board B and a demonstration board C, the rear end of the demonstration board A is provided with a sliding groove and two fixing grooves, the left end and the right end of the demonstration board B are respectively provided with a fixing plate, the left end and the right end of the two fixing plates are respectively provided with two convex blocks, the rear ends of the two fixing plates are respectively provided with a telescopic block, the front ends of the two telescopic blocks are respectively provided with a sliding block, the top ends and the bottom ends of the two telescopic blocks are respectively welded with a telescopic rod, the material through demonstration board B is soft material for the device conveniently observes, drives demonstration board B through the telescopic link and removes, and the plane and demonstration board A and the demonstration board C that reach demonstration board B flush, make the device conveniently draw the calculus.

Description

Demonstration device of building engineering cost teaching ideal

Technical Field

The utility model relates to the technical field of construction engineering cost, in particular to an ideal demonstration device for construction engineering cost teaching.

Background

As is well known, the construction cost is divided into unit construction cost, single project comprehensive cost and total construction project cost, and the construction project is calculated in three steps: the construction plan budget is listed according to design drawings, construction plan information price, bidding documents, construction contracts and selected budget quota one by one, a finished construction amount list is calculated, and finally the total price of the construction project is calculated.

Through retrieval, the utility model patent with Chinese patent publication No. CN210837019U discloses a construction engineering cost demonstration device, which comprises a demonstration block; the two pull rods are respectively and fixedly arranged on the side wall of the demonstration block; the fixing mechanisms are respectively arranged on the left side wall and the right side wall of the two demonstration blocks and comprise a first fixing plate, a second fixing plate and a third fixing plate, one end of the first fixing plate is arranged on the right side wall of the demonstration block on the left side, the third fixing plate is arranged on the left side wall of the demonstration block on the right side, and the second fixing plate is respectively in sliding connection with the first fixing plate and the third fixing plate; the two telescopic mechanisms are respectively arranged at the bottom ends of the two demonstration blocks; a base; a universal wheel; the construction cost demonstration device provided by the utility model has the functions of conveniently transferring, adjusting the visual angle and the like.

However, the above patents have the following drawbacks: 1. the positions of the three fixing plates cannot be adjusted, so that an operator cannot calculate the positions conveniently; 2. three fixed plates can only be stretched along a straight line, so that the fixed plates are too long, and workers in the middle of the fixed plates cannot observe the two ends of the fixed plates conveniently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the ideal demonstration device for the building engineering cost teaching, which is convenient for calculation and observation.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a demonstration device for building engineering cost teaching ideal comprises a demonstration device body, wherein the demonstration device body comprises a moving structure, a demonstration board A, a demonstration board B and a demonstration board C, the demonstration board B is positioned between the demonstration board A and the demonstration board C, the demonstration board A is positioned at the left part of the demonstration board C, the moving structure is installed at the bottom ends of the demonstration board A and the demonstration board C, the rear end of the demonstration board A is provided with a sliding groove and two fixing grooves, the sliding groove is positioned between the two fixing grooves, the structure of the demonstration board A is the same as that of the demonstration board C, the demonstration board B is made of soft materials, the left end and the right end of the demonstration board B are respectively provided with a fixing plate, the left end and the right end of the two fixing plates are respectively provided with two convex blocks, the front end of each convex block is provided with a magnet A, the rear end of each groove is provided with a magnet B, and every two corresponding magnets A and B attract each other, the rear end of two fixed plates all is provided with flexible piece, and the front end of two flexible pieces all is provided with the sliding block to two sliding blocks carry out sliding fit with the sliding tray respectively, and the telescopic link has all been welded to the top and the bottom of two flexible pieces, and per two adjacent telescopic links are connected with two fixed plates respectively.

Further, both ends all are provided with trapezoidal fixture block about demonstration board B, and the relative terminal surface of two fixed plates all is provided with the draw-in groove to two trapezoidal fixture blocks cooperate with the draw-in groove respectively, and the material of two trapezoidal fixture blocks is rubber materials, and the fit relation between trapezoidal fixture block and the draw-in groove is interference fit.

Still further, every the front end of lug (6) all is provided with magnet A (7), every the rear end of recess all is provided with magnet B (8), every two corresponding magnet A (7) and magnet B (8) inter attraction.

It should be noted that the length of demonstration board a plus the length of demonstration board C is equal to the length of demonstration board B plus the length of two fixing boards.

On preceding basis, every lug all is trapezoidal shape setting, and two sliding blocks all are the shape of invering T word to the shape of sliding tray and the shape phase-match of sliding block.

Furthermore, the sliding block is fixed with the telescopic block through welding.

(III) advantageous effects

Compared with the prior art, the utility model provides an ideal demonstration device for building engineering cost teaching, which has the following beneficial effects:

this presentation device of building engineering cost teaching ideal, the material through demonstration board B is soft material, make demonstration board B can be crooked, the workman that conveniently is located in the middle of the fixed plate observes the both ends of fixed plate, further make the device conveniently observe, top and the bottom through two flexible pieces all weld the telescopic link, make the telescopic link drive demonstration board B remove, the plane and demonstration board A and the demonstration board C that are up to demonstration board B flush, further make the device conveniently draw the calculus.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a rear view of demonstration board A, demonstration board B and demonstration board C of FIG. 1 according to the present invention;

FIG. 4 is a schematic top view of the present invention showing the bend of the demonstration board B shown in FIG. 1;

FIG. 5 is a schematic bottom view of the telescoping block of FIG. 1 in accordance with the present invention;

FIG. 6 is a schematic cross-sectional view of magnet A and magnet B of FIG. 1 in accordance with the present invention;

fig. 7 is a partially enlarged structural view of a portion a shown in fig. 2 according to the present invention.

In the figure: 1. a moving structure; 2. a demonstration board A; 3. a demonstration board B; 4. a demonstration board C; 5. a fixing plate; 6. a bump; 7. a magnet A; 8. a magnet B; 9. a slider; 10. a trapezoidal fixture block; 11. a telescopic block; 12. a telescopic rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the demonstration apparatus for teaching construction cost of building engineering of the present invention comprises a demonstration apparatus body, the demonstration apparatus body comprises a movable structure 1, a demonstration board a2, a demonstration board B3 and a demonstration board C4, the demonstration board B3 is located between the demonstration board a2 and the demonstration board C4, the demonstration board a2 is located at the left portion of the demonstration board C4, the movable structure 1 is installed at the bottom ends of the demonstration board a2 and the demonstration board C4, the length of the demonstration board a2 and the length of the demonstration board C4 are equal to the length of the demonstration board B3 and the two fixing boards 5, so that the apparatus is convenient to move, the rear end of the demonstration board a2 is provided with a sliding groove and two fixing grooves, the sliding groove is located between the two fixing grooves, the structure of the demonstration board a2 and the structure of the demonstration board C4 are the same, the demonstration board B3 is made of soft fixture block, the left and right ends of the demonstration board B3 are both provided with trapezoidal fixing boards B10, and the left and right ends of the demonstration board C3 are provided with trapezoidal fixing boards, the opposite end surfaces of the two fixing plates 5 are respectively provided with a clamping groove, the two trapezoidal clamping blocks 10 are respectively matched with the clamping grooves, so that the demonstration plate B3 is convenient to disassemble, the two trapezoidal clamping blocks 10 are made of rubber materials, the matching relationship between the trapezoidal clamping blocks 10 and the clamping grooves is interference fit, so that the demonstration plate B3 is firmer when being fixed with the two fixing plates 5, the left end and the right end of each fixing plate 5 are respectively provided with two convex blocks 6, each convex block 6 is arranged in a trapezoidal shape, so that the matching between the convex block 6 and the fixing groove is smoother, the front end of each convex block 6 is provided with a magnet A7, the rear end of each groove is provided with a magnet B8, each two corresponding magnets A7 and a magnet B8 are mutually attracted, the rear ends of the two fixing plates 5 are respectively provided with a telescopic block 11, the front ends of the two telescopic blocks 11 are respectively provided with a sliding block 9, and the sliding block 9 is fixed with the telescopic blocks 11 through welding, make sliding block 9 more firm when being connected with flexible piece 11, two sliding blocks 9 carry out sliding fit with the sliding tray respectively, two sliding blocks 9 all are the form of invering the T word, and the shape of sliding tray and sliding block 9's shape phase-match, make sliding block 9 more stable when the sliding tray is inside to be removed, telescopic link 12 has all been welded to the top and the bottom of two flexible pieces 11, per two adjacent telescopic links 12 are connected with two fixed plates 5 respectively, the material through demonstration board B3 is soft material, make the device conveniently observe, it removes to drive demonstration board B3 through telescopic link 12, plane and demonstration board A2 and demonstration board C4 calculation until demonstration board B3, make the device conveniently draw and flush.

To sum up, this ideal presentation device of building engineering cost teaching, when using, with demonstration board A2 and demonstration board C4 left end and right-hand member extension respectively, until demonstration board B3 is located between demonstration board A2 and demonstration board C4 completely, promote demonstration board B3 forward, because telescopic link 12 is connected with demonstration board B3, so demonstration board B3 can produce the removal, demonstration board B3 fixes through the attraction that magnet A7 and magnet B8 produced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a presentation device of building engineering cost teaching ideal, includes the presentation device body, its characterized in that: the demonstration device comprises a demonstration device body, a demonstration board A (2), a demonstration board B (3) and a demonstration board C (4), wherein the demonstration board B (3) is arranged between the demonstration board A (2) and the demonstration board C (4), the demonstration board A (2) is arranged at the left part of the demonstration board C (4), the movable structure (1) is arranged at the bottom ends of the demonstration board A (2) and the demonstration board C (4), the rear end of the demonstration board A (2) is provided with a sliding groove and two fixed grooves, the sliding groove is arranged between the two fixed grooves, the structure of the demonstration board A (2) is the same as that of the demonstration board C (4), the demonstration board B (3) is made of soft materials, the left end and the right end of the demonstration board B (3) are both provided with fixed plates (5), and the left end and the right end of the two fixed plates (5) are respectively provided with two convex blocks (6), two the rear end of fixed plate (5) all is provided with flexible piece (11), two the front end of flexible piece (11) all is provided with sliding block (9) to two sliding blocks (9) carry out sliding fit, two with the sliding tray respectively the top and the bottom of flexible piece (11) all weld telescopic link (12), and per two adjacent telescopic links (12) are connected with two fixed plates (5) respectively.

2. The demonstration device for teaching construction cost according to claim 1, wherein: both ends all are provided with trapezoidal fixture block (10), two about demonstration board B (3) the relative terminal surface of fixed plate (5) all is provided with the draw-in groove to two trapezoidal fixture block (10) cooperate with the draw-in groove respectively, two the material of trapezoidal fixture block (10) is rubber materials, and trapezoidal fixture block (10) and the cooperation between the draw-in groove are interference fit.

3. The demonstration device for teaching the construction cost according to claim 1, wherein: every the front end of lug (6) all is provided with magnet A (7), every the rear end of recess all is provided with magnet B (8), every two corresponding magnet A (7) and magnet B (8) inter attraction.

4. The demonstration device for teaching construction cost according to claim 1, wherein: the length of demonstration board A (2) plus the length of demonstration board C (4) is equal to the length of demonstration board B (3) plus two fixed plates (5).

5. The demonstration device for teaching construction cost according to claim 1, wherein: every lug (6) all is trapezoidal shape setting, two sliding block (9) all are the shape of invering T word to the shape of sliding tray matches with the shape of sliding block (9).

6. The demonstration device for teaching construction cost according to claim 5, wherein: the sliding block (9) is fixed with the telescopic block (11) through welding.