CN209354910U

CN209354910U - A kind of practice device of construction engineering cost

Info

Publication number: CN209354910U
Application number: CN201822173945.XU
Authority: CN
Inventors: 苏娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-24
Filing date: 2018-12-24
Publication date: 2019-09-06
Anticipated expiration: 2028-12-24

Abstract

The utility model belongs to construction engineering technical field, in particular a kind of practice device of construction engineering cost, including bottom plate, pedestal is fixedly installed at the top of the bottom plate, inner cavity is offered in the pedestal, motor is fixedly installed in the bottom interior wall of the inner cavity, square groove is offered at the top of the pedestal, circular through hole is offered in the bottom interior wall of the square groove, main shaft is rotatably equipped on the inner wall of the circular through hole, the bottom end of the main shaft extends to interior intracavitary and with motor output shaft and is fixedly connected, the top of the main shaft extends in square groove, on the outer wall of the main shaft fixing sleeve set there are two be located at square groove in the first synchronous pulley.The utility model practicability is high, easy to operate, and the height of display and keyboard body can be adjusted according to the height of operator, meets people of different heights, brings great convenience to user.

Description

A kind of practice device of construction engineering cost

Technical field

The utility model relates to construction engineering technical field more particularly to a kind of practice devices of construction engineering cost.

Background technique

Project cost, which refers to, carries out the full payment that a certain engineering construction is spent, and core content is investment estimate, sets Budgetary estimate, amendment budgetary estimate, working drawing budget, Engineering Settlement, budget needed for the completion of projects etc. are counted, construction engineering cost budget refers to by certain Calculation formula its engineering is subjected to cost estimate, in practical application, calculated using computer, only need to be in computer Internal storage in certain calculation formula is set, can be estimated over the display by microprocessor display.

A kind of construction engineering cost budget practice device of Publication No. CN206639218U in the prior art, including display Device, LCD display, stent strut, keyboard body, pedal, the knowledge of left foot marking, the knowledge of right crus of diaphragm marking, bolt one, bolt two, bolt three, Fixed plate, rotation axis, footing, power panel, left input panel, right input panel, calculates panel, support frame, fixation at cradling piece Bolt, power interface and circuit board.Although the utility model can be effectively reduced user there are the feelings to slip on pedal Condition, improves the safety in utilization of device, and is conducive to extend the service life of device, but the display and keyboard of its setting Body is fixed setting, and when use can not adjust the height of display and keyboard body according to the height of different users, this can give Some users make troubles, for this purpose, proposing a kind of practice device of construction engineering cost.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of architectural engineering proposed is made The practice device of valence.

To achieve the goals above, the utility model adopts the technical scheme that a kind of drilling for construction engineering cost Practice device, including bottom plate, is fixedly installed with pedestal at the top of the bottom plate, inner cavity is offered in the pedestal, the inner cavity It is fixedly installed with motor in bottom interior wall, offers square groove at the top of the pedestal, in the bottom interior wall of the square groove Circular through hole is offered, main shaft is rotatably equipped on the inner wall of the circular through hole, the bottom end of the main shaft extends to interior intracavitary And be fixedly connected with the output shaft of motor, the top of the main shaft extends in square groove, fixed on the outer wall of the main shaft It is arranged that there are two the first synchronous pulleys being located in square groove, is fixedly installed with fixation on the two sides inner wall of the square groove Block, in the bottom interior wall of the square groove symmetrically rotational installation there are two threaded rod, the top of two threaded rods with it is corresponding Fixed block rotation connection, be slidably fitted with the same lifter plate on the two sides inner wall of the square groove, two threaded rods pass through It wears lifter plate and is threadedly coupled with lifter plate, equal fixing sleeve is equipped with the second synchronous pulley on the outer wall of two threaded rods, and two the It is wound with synchronous belt on two synchronous pulleys and corresponding first synchronous pulley, is fixedly installed at the top of the lifter plate Stent strut extends to the top of pedestal at the top of the stent strut and is provided with display, the side outer wall of the stent strut On be provided with keyboard body above pedestal.

Preferably, sliding slot is offered on the two sides inner wall of the square groove, the two sides of the lifter plate are fixedly mounted There is sliding block, two sliding blocks are slidably connected with corresponding sliding slot.

Preferably, the first circular trough there are two symmetrically being opened up in the bottom interior wall of the square groove, the bottom of two threaded rods Equal fixing sleeve is held to be equipped with first bearing, the outer ring of two first bearings, which is fixed with the inner wall of corresponding first circular trough, to be connected It connecing, the bottom of two fixed blocks offers the second circular trough, and the equal fixing sleeve in the top of two threaded rods is equipped with second bearing, and two The outer ring of a second bearing is fixedly connected with the inner wall of corresponding second circular trough.

Preferably, it is symmetrically opened up on the lifter plate there are two threaded hole, two threaded rods run through corresponding screw thread The inner thread of the corresponding threaded hole of Kong Bingyu connects.

Preferably, fixing sleeve is set there are two 3rd bearing on the outer wall of the main shaft, the outer ring of two 3rd bearings with The inner wall of circular through hole is fixedly connected.

Preferably, there are four the self-locking universal wheels for being in distributed rectangular for the bottom fixed installation of the bottom plate.

Compared with prior art, the utility model has the beneficial effects that the device passes through bottom plate, pedestal, inner cavity, electronic Machine, square groove, circular through hole, main shaft, the first synchronous pulley, fixed block, threaded rod, lifter plate and the second synchronous pulley match It closes, when starting the output shaft of motor and rotating forward, motor can drive main shaft to rotate forward, and main shaft can be same by two first Step belt wheel, two synchronous belts and two the second synchronous pulleys drive two threaded rods to rotate forward simultaneously, since lifter plate is logical It crosses two sliding blocks to be limited with sliding slot, so two threaded rods can drive lifter plate to move upwards；

It is matched by synchronous belt, stent strut, keyboard body, display and self-locking universal wheel, what lifter plate moved upwards When stent strut can be driven to move upwards, so as to enable display and key tray height to increase, similarly start motor it is defeated When shaft rotates backward, then display and keyboard body can be made to move downward, four self-locking universal wheels can be easy to remove and fix this Device；

The utility model practicability is high, easy to operate, and display and keyboard body can be adjusted according to the height of operator Highly, meet people of different heights, bring great convenience to user.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is enlarged drawing at the A of Fig. 1；

Fig. 3 is enlarged drawing at the B of Fig. 1；

Fig. 4 is enlarged drawing at the C of Fig. 1.

In figure: 1, bottom plate；2, pedestal；3, inner cavity；4, motor；5, square groove；6, circular through hole；7, main shaft；8, first Synchronous pulley；9, fixed block；10, threaded rod；11, lifter plate；12, the second synchronous pulley；13, synchronous belt；14, stent strut； 15, keyboard body；16, display；17, self-locking universal wheel.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It please refers to shown in Fig. 1-Fig. 4, the utility model provides a kind of technical solution: a kind of rehearsal of construction engineering cost Device, including bottom plate 1, the top of bottom plate 1 are fixedly installed with pedestal 2, and inner cavity 3, the bottom interior wall of inner cavity 3 are offered in pedestal 2 On be fixedly installed with motor 4, the top of pedestal 2 offers square groove 5, offers in the bottom interior wall of square groove 5 round logical Hole 6, main shaft 7 is rotatably equipped on the inner wall of circular through hole 6, and the bottom end of main shaft 7 extends in inner cavity 3 and defeated with motor 4 Shaft is fixedly connected, and the top of main shaft 7 extends in square groove 5, on the outer wall of main shaft 7 fixing sleeve set there are two be located at square groove The first synchronous pulley 8 in 5, is fixedly installed with fixed block 9 on the two sides inner wall of square groove 5, in the bottom interior wall of square groove 5 There are two threaded rods 10 for symmetrical rotational installation, and the top of two threaded rods 10 is rotatablely connected with corresponding fixed block 9, rectangular The same lifter plate 11 is slidably fitted on the two sides inner wall of slot 5, two threaded rods 10 are through lifter plate 11 and and lifter plate 11 are threadedly coupled, and fixing sleeve is equipped with the second synchronous pulley 12, two the second synchronous pulleys 12 on the outer wall of two threaded rods 10 With synchronous belt 13 is wound on corresponding first synchronous pulley 8, the top of lifter plate 11 is fixedly installed with stent strut 14, The top of stent strut 14 extends to the top of pedestal 2 and is provided with display 16, is provided on the side outer wall of stent strut 14 Keyboard body 15 above pedestal 2；

Sliding slot is offered on the two sides inner wall of square groove 5, the two sides of lifter plate 11 are fixedly installed with sliding block, two cunnings Block is slidably connected with corresponding sliding slot, is symmetrically opened up in the bottom interior wall of square groove 5 there are two the first circular trough, two spiral shells The equal fixing sleeve in the bottom end of rasp bar 10 is equipped with first bearing, and the outer ring of two first bearings is interior with corresponding first circular trough Wall is fixedly connected, and the bottom of two fixed blocks 9 offers the second circular trough, and the equal fixing sleeve in the top of two threaded rods 10 is equipped with Second bearing, the outer ring of two second bearings is fixedly connected with the inner wall of corresponding second circular trough, right on lifter plate 11 Title is opened up there are two threaded hole, and two threaded rods 10 run through corresponding threaded hole and the inner wall spiral shell with corresponding threaded hole Line connects, and fixing sleeve is set there are two 3rd bearing on the outer wall of main shaft 7, and the outer ring of two 3rd bearings is interior with circular through hole Wall is fixedly connected, and the bottom of bottom plate 1 is fixedly mounted there are four the self-locking universal wheel 17 for being in distributed rectangular, by bottom plate 1, pedestal 2, Inner cavity 3, motor 4, square groove 5, circular through hole 6, main shaft 7, the first synchronous pulley 8, fixed block 9, threaded rod 10, lifter plate 11 It is matched with the second synchronous pulley 12, when the output shaft of starting motor 4 rotates forward, motor 4 can drive main shaft 7 is positive to turn Dynamic, main shaft 7 can drive two spiral shells by two the first synchronous pulleys, 8, two synchronous belts 13 and two the second synchronous pulleys 12 Rasp bar 10 rotates forward simultaneously, since lifter plate 11 is limited by two sliding blocks with sliding slot, so two 10 energy of threaded rod Lifter plate 11 is driven to move upwards；Pass through synchronous belt 13, stent strut 14, keyboard body 15, display 16 and self-locking universal wheel 17 Match, lifter plate 11 move upwards when stent strut 14 can be driven to move upwards, so as to make display 16 and keyboard body 15 Height is increased, and when similarly the output shaft of starting motor 4 rotates backward, then display 16 and keyboard body 15 can be made to transport downwards Dynamic, four self-locking universal wheels 17 can the present apparatus easy to remove and fixed；The utility model practicability is high, easy to operate, can basis The height of operator adjusts the height of display 16 and keyboard body 15, meets people of different heights, brings greatly to user Convenience.

Working principle: being additionally provided with two-direction switch on the side outer wall of pedestal 2, the model HY2-15 of two-direction switch, Clockwise switch, motor 4 and external power supply are sequentially connected composition closed circuit by conducting wire, and when in use, operator can be according to certainly Display 16 and keyboard body 15 are adjusted to suitable position by the height of body, when adjustment, are passed through two-direction switch and are started motor 4 When output shaft rotates forward, motor 4 can drive main shaft 7 to rotate forward, and main shaft 7 can drive two the first synchronous pulleys 8 positive Rotation, two the first synchronous pulleys 8 can drive corresponding second synchronous pulley 12 to rotate forward by synchronous belt 13, thus Two threaded rods 10 can be driven while being rotated forward, since lifter plate 11 is limited by two sliding blocks with sliding slot, so two A threaded rod 10 can drive lifter plate 11 to move upwards, and lifter plate 11 can drive stent strut 14 to move upwards, so as to make to show Device 16 and 15 height of keyboard body are increased, when two sliding block upward slidings are extremely in contact with the top inner wall of corresponding sliding slot When, then display 16 and keyboard body 15 can rise to highest point, and similarly, the output shaft for starting motor 4 by two-direction switch is anti- To when rotation, then display 16 and keyboard body 15 can be made to move downward, when bottom and the bottom of corresponding sliding slot of two sliding blocks When portion is in contact, then display 16 and keyboard body 15 can drop to lowest part, and four self-locking universal wheels 17 can be easy to remove and solid Determine the present apparatus.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. a kind of practice device of construction engineering cost, including bottom plate (1), it is characterised in that: the top of the bottom plate (1) is solid Dingan County is equipped with pedestal (2), offers inner cavity (3) in the pedestal (2), is fixedly installed in the bottom interior wall of the inner cavity (3) Motor (4) offers square groove (5) at the top of the pedestal (2), offers circle in the bottom interior wall of the square groove (5) Shape through-hole (6) is rotatably equipped with main shaft (7) on the inner wall of the circular through hole (6), in the bottom end of the main shaft (7) extends to It is fixedly connected in chamber (3) and with the output shaft of motor (4), the top of the main shaft (7) extends in square groove (5), described Fixing sleeve is set there are two the first synchronous pulley (8) being located in square groove (5) on the outer wall of main shaft (7), the square groove (5) It is fixedly installed on the inner wall of two sides fixed block (9), symmetrically there are two spiral shells for rotational installation in the bottom interior wall of the square groove (5) Rasp bar (10), the top of two threaded rods (10) are rotatablely connected with corresponding fixed block (9), and the two of the square groove (5) It is slidably fitted on the inner wall of side the same lifter plate (11), two threaded rods (10) are through lifter plate (11) and and lifter plate (11) it is threadedly coupled, fixing sleeve is equipped with the second synchronous pulley (12) on the outer wall of two threaded rods (10), two second synchronizations It is wound with synchronous belt (13) on belt wheel (12) and corresponding first synchronous pulley (8), the top of the lifter plate (11) It is fixedly installed with stent strut (14), the top of pedestal (2) is extended at the top of the stent strut (14) and is provided with display (16), the keyboard body (15) being provided on the side outer wall of the stent strut (14) above pedestal (2).

2. a kind of practice device of construction engineering cost according to claim 1, it is characterised in that: the square groove (5) offer sliding slot on two sides inner wall, the two sides of the lifter plate (11) are fixedly installed with sliding block, two sliding blocks with Corresponding sliding slot is slidably connected.

3. a kind of practice device of construction engineering cost according to claim 1, it is characterised in that: the square groove (5) it is symmetrically opened up in bottom interior wall there are two the first circular trough, the equal fixing sleeve in bottom end of two threaded rods (10) is equipped with first Bearing, the outer ring of two first bearings are fixedly connected with the inner wall of corresponding first circular trough, the bottom of two fixed blocks (9) Portion offers the second circular trough, and the equal fixing sleeve in top of two threaded rods (10) is equipped with second bearing, two second bearings Outer ring is fixedly connected with the inner wall of corresponding second circular trough.

4. a kind of practice device of construction engineering cost according to claim 1, it is characterised in that: the lifter plate (11) symmetrically opened up on there are two threaded hole, two threaded rods (10) through corresponding threaded hole and with corresponding screw thread The inner thread in hole connects.

5. a kind of practice device of construction engineering cost according to claim 1, it is characterised in that: the main shaft (7) Outer wall on fixing sleeve set there are two 3rd bearing, the outer ring of two 3rd bearings is fixedly connected with the inner wall of circular through hole.

6. a kind of practice device of construction engineering cost according to claim 1, it is characterised in that: the bottom plate (1) Bottom be fixedly mounted there are four be in distributed rectangular self-locking universal wheel (17).