阅读说明：本技术 一种建筑工程造价预算演练装置 (Building engineering cost budget rehearsal device ) 是由 贾文振 冯华 于 2019-03-21 设计创作，主要内容包括：本发明公开了一种建筑工程造价预算演练装置,包括壳体,壳体的前后两端均设有放置腔,放置腔上端相对应的位置开设有横孔,两个放置腔内均放置有套管,书写纸的两端分别缠绕在两个套管上,书写纸穿过两个横孔,壳体的左端设有左侧固定板,壳体的右侧固定有右侧固定板,两个套管的左端均同轴固定有转动杆,两个转动杆的右端均贯穿并延伸至左侧固定板的左侧,右侧固定板的外侧固定有弹性弧形板,当外露的书写纸写满数据时,用户旋转其中一个转动块,转动块通过转动杆带动对应的套管旋转,套管带动书写纸移动,实现书写纸的更换,书写纸不容易被风吹动,便于用户在书写纸上记录东西；弹性弧形板卡接记录笔,记录笔固定方便。(The invention discloses a building engineering cost budget practicing device, which comprises a shell, wherein the front end and the rear end of the shell are respectively provided with a placing cavity, the upper end of each placing cavity is provided with a transverse hole, the two placing cavities are respectively provided with a sleeve, the two ends of writing paper are respectively wound on the two sleeves, the writing paper passes through the two transverse holes, the left end of the shell is provided with a left fixing plate, the right side of the shell is fixedly provided with a right fixing plate, the left ends of the two sleeves are coaxially fixedly provided with rotating rods, the right ends of the two rotating rods respectively penetrate through and extend to the left side of the left fixing plate, the outer side of the right fixing plate is fixedly provided with an, when the exposed writing paper is full of data, a user rotates one of the rotating blocks, the rotating block drives the corresponding sleeve to rotate through the rotating rod, the sleeve drives the writing paper to move, the writing paper is replaced, the writing paper is not easily blown by wind, and the user can record things on the writing paper conveniently; the elastic arc-shaped plate is clamped with the recording pen, and the recording pen is convenient to fix.)

1. The utility model provides a building engineering cost budget rehearsal device, includes casing (2), its characterized in that: both ends all are equipped with around casing (2) and place the chamber, place the corresponding position in chamber upper end and seted up the cross bore, two place the intracavity and all placed sleeve pipe (10), the both ends of writing paper (3) twine respectively on two sleeve pipes (10), write paper (3) and pass two cross bores, the left end of casing (2) is equipped with left side fixed plate (9), the right side of casing (2) is fixed with right side fixed plate (4), the outside of right side fixed plate (4) is fixed with flexible arc (5), the equal coaxial dwang (8) that is fixed with in left end of two sleeve pipes (10), the right-hand member of two dwang (8) all runs through and extends to the left side of left side fixed plate (9).

2. The construction cost budget practicing device according to claim 1, characterized in that: the left end of dwang (8) is fixed with turning block (11), and turning block (11) are cylindrical, and columniform turning block (11) and dwang (8) coaxial fixation.

3. The construction cost budget practicing device according to claim 1, characterized in that: the front end of the shell (2) is fixed with a placing box (6), and the upper end of the placing box (6) is provided with an opening.

4. The construction cost budget practicing device according to claim 1, characterized in that: a rubber strip (1) is fixed at a transverse hole at the upper end of the placing cavity, and the lower surface of the rubber strip (1) is in sliding connection with the upper surface of the writing paper (3).

5. The construction cost budget practicing device according to claim 1, characterized in that: the lower end of the shell (2) is fixedly connected with the two ends of the binding belt (12), and the length direction of the binding belt (12) is parallel to the length direction of the shell (2).

6. The construction cost budget practicing device according to claim 1, characterized in that: the left end of casing (2) is fixed with joint post (7), and the draw-in groove has been seted up to the position that the left side fixed plate (9) side corresponds joint post (7), draw-in groove and joint post (7) joint.

Technical Field

The invention relates to the technical field of engineering teaching instruments, in particular to a construction cost budget practicing device for construction engineering.

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. When a student just starts to learn the project cost budget, the student generally performs on-site investigation and learns from practice, but when the budget is estimated, a lot of things need to be recorded, and when the on-site wind is strong, paper on the existing writing board is easily blown by wind, and the things are difficult to be recorded on the paper.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a building engineering cost budget practicing device, writing paper is not easy to be blown by wind, a user can conveniently record things on the writing paper, and the problems in the background technology can be effectively solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a building engineering cost budget rehearsal device, which comprises a housin, both ends all are equipped with around the casing and place the chamber, place the corresponding position in chamber upper end and seted up the cross bore, two are placed the intracavity and have all been placed the sleeve pipe, the both ends of writing paper twine respectively on two sleeve pipes, writing paper passes two cross bores, the left end of casing is equipped with the left side fixed plate, the right side of casing is fixed with the right side fixed plate, two sheathed tube left ends all coaxial be fixed with the dwang, the right-hand member of two dwangs all runs through and extends to the left side of left side fixed plate, the outside of right side fixed plate is fixed with.

As a preferred technical scheme of the invention, a rotating block is fixed at the left end of the rotating rod, the rotating block is cylindrical, and the cylindrical rotating block and the rotating rod are coaxially fixed.

As a preferable technical scheme of the invention, the front end of the shell is fixed with a placing box, and the upper end of the placing box is provided with an opening.

As a preferable technical scheme of the invention, a rubber strip is fixed at a transverse hole at the upper end of the placing cavity, and the lower surface of the rubber strip is in sliding connection with the upper surface of the writing paper.

As a preferable technical scheme of the invention, the lower end of the shell is fixedly connected with two ends of the binding belt, and the length direction of the binding belt is parallel to the length direction of the shell.

As a preferred technical scheme of the invention, a clamping column is fixed at the left end of the shell, a clamping groove is formed in the side surface of the left fixing plate corresponding to the clamping column, and the clamping groove is clamped with the clamping column.

Compared with the prior art, the invention has the beneficial effects that: according to the building engineering cost budget practicing device, when the exposed writing paper is full of data, a user rotates one of the rotating blocks, the rotating block drives the corresponding sleeve to rotate through the rotating rod, the sleeve drives the writing paper to move, the writing paper is replaced, the writing paper is not easily blown by wind, and the user can conveniently record things on the writing paper; the elastic arc-shaped plate is clamped with the recording pen, and the recording pen is convenient to fix.

Drawings

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

FIG. 2 is a schematic bottom view of the present invention.

In the figure: the device comprises a rubber strip 1, a shell 2, writing paper 3, a right side fixing plate 4, an elastic arc plate 5, a placing box 6, a clamping column 7, a rotating rod 8, a left side fixing plate 9, a sleeve 10, a rotating block 11 and a binding belt 12.

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. 1-2, the present invention provides a technical solution: a building engineering cost budget practicing device comprises a shell 2, wherein the front end and the rear end of the shell 2 are respectively provided with a placing cavity, the upper end of the placing cavity is provided with a transverse hole at a corresponding position, a rubber strip 1 is fixed at the transverse hole at the upper end of the placing cavity, the lower surface of the rubber strip 1 is in sliding connection with the upper surface of writing paper 3, sleeves 10 are respectively placed in the two placing cavities, the two ends of the writing paper 3 are respectively wound on the two sleeves 10, the writing paper 3 passes through the two transverse holes, the rubber strip 1 prevents the writing paper 3 from bringing dust into the placing cavity, the left end of the shell 2 is provided with a left fixing plate 9, the left end of the shell 2 is fixed with a clamping column 7, the side surface of the left fixing plate 9 is provided with a clamping groove corresponding to the clamping column 7, the clamping groove is clamped with the clamping column 7, the left fixing plate 9 is convenient to mount and dismount, the outside of right side fixed plate 4 is fixed with flexible arc 5, the equal coaxial dwang 8 that is fixed with in left end of two sleeve pipes 10, the right-hand member of two dwang 8 all runs through and extends to the left side of left side fixed plate 9, the left end of dwang 8 is fixed with turning block 11, turning block 11 is cylindrical, columniform turning block 11 and dwang 8 are coaxial fixed, when the exposed paper 3 of writing is full of data, rotatory one of them turning block 11 of user, turning block 11 drives the sleeve pipe 10 that corresponds through dwang 8 and rotates, sleeve pipe 10 drives the paper 3 of writing and removes, the change of paper 3 is written in the realization, it is difficult to blown by wind to write paper 3, be convenient for the user to write the record thing on paper 3

The front end of casing 2 is fixed with places case 6, and the opening has been seted up to the upper end of placing case 6, and the lower extreme of casing 2 and the both ends fixed connection of constraint area 12, the length direction of constraint area 12 and the length direction of casing 2 are parallel, and user's a hand passes the clearance of constraint area 12 and casing 2 lower surface, and this building engineering cost budget rehearsal device is taken conveniently.

When in use: one hand of a user penetrates through a gap between the binding belt 12 and the lower surface of the shell 2, the user writes on the exposed writing paper 3, when the exposed writing paper 3 is full of data, the user rotates one of the rotating blocks 11, the rotating block 11 drives the corresponding sleeve 10 to rotate through the rotating rod 8, and the sleeve 10 drives the writing paper 3 to move, so that the movement of the paper is realized. The elastic arc-shaped plate 5 is clamped with the recording pen. The user clips the lower end of the calculator or the mobile phone in the placing box 6.

According to the invention, when the exposed writing paper 3 is full of data, a user rotates one of the rotating blocks 11, the rotating block 11 drives the corresponding sleeve 10 to rotate through the rotating rod 8, the sleeve 10 drives the writing paper 3 to move, so that the writing paper 3 is replaced, the writing paper 3 is not easily blown by wind, and the user can record things on the writing paper 3 conveniently; the elastic arc-shaped plate 5 is connected with the recording pen in a clamping mode, and the recording pen is convenient to fix.

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 invention, the scope of which is defined in the appended claims and their equivalents.