CN215126675U - Hydraulic engineering cost analytical equipment - Google Patents

Abstract

The application discloses hydraulic engineering cost analytical equipment, including sand table brace table, supporting leg, slide rail shell, backup pad, crossbeam, engineering model, removal structure, spacing fixed knot construct and show structure, sand table brace table's bottom surface department fixedly connected with supporting leg, the supporting leg is total four, four the lower surface four corners department at sand table brace table is fixed respectively to the supporting leg, the equal fixedly connected with slide rail shell of sand table brace table's upper surface both sides department, it is provided with the slider to slide in the inner chamber of slide rail shell. This application can be comparatively convenient carry the removal to the engineering model through the removal structure, conveniently takes the engineering model and places, is convenient for carry out research and analysis to the engineering, through spacing fixed knot structure, can be fixed spacing upper surface department at the sand table brace table to the engineering model, avoids the skew, and fixed effect is better, can cooperate the removal structure to make and use more convenient.

Description

Hydraulic engineering cost analytical equipment

Technical Field

The application relates to a hydraulic engineering cost field, especially a hydraulic engineering cost analytical equipment.

Background

Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. Also known as water engineering. Water is a valuable resource essential for human production and life, but its naturally occurring state does not completely meet the needs of human beings. Only when hydraulic engineering is built, water flow can be controlled, flood disasters are prevented, and water quantity is adjusted and distributed to meet the requirements of people on water resources in life and production. Hydraulic engineering needs to build various types of hydraulic buildings such as dams, dikes, spillways, water gates, water inlets, channels, transition troughs, rafts, fishways and the like so as to achieve the aims.

During hydraulic engineering cost research analysis, need use the sand table, traditional sand table structure is comparatively simple, and the function is comparatively single, and the model on the sand table is inconvenient to be removed, and is inconvenient to be adjusted, and partial mould is bulky simultaneously, and weight is heavier, and is inconvenient to be removed. Therefore, a hydraulic engineering cost analysis device is provided to the above problem.

Disclosure of Invention

The utility model provides a hydraulic engineering cost analytical equipment is used for solving the inconvenient removal of ordinary analysis sand table among the prior art, and the inconvenient problem of removing of model in this embodiment.

According to one aspect of the application, a hydraulic engineering cost analysis device is provided, and comprises a sand table supporting table, supporting legs, a sliding rail shell, a supporting plate, a cross beam, an engineering model, a moving structure, a limiting and fixing structure and a display structure;

the utility model discloses a sand table supporting bench, including sand table supporting bench, supporting leg, sliding support piece, sand table supporting bench's bottom surface fixedly connected with supporting leg, the supporting leg is total four, four the lower surface four corners department at sand table supporting bench is fixed respectively to the supporting leg, sand table supporting bench's the equal fixedly connected with slide rail shell in upper surface both sides department, the slip is provided with the slider in the inner chamber of slide rail shell, the upper surface department fixedly connected with support piece of slider, support piece extend to the slide rail shell the upper surface department and with slide rail shell between the upper surface carry out sliding fit, support piece's upper surface department fixedly connected with backup pad, the fixedly connected with crossbeam of top department of backup pad, slidable mounting has the removal structure on the crossbeam, fixed mounting has spacing fixed knot to construct on the sand table supporting bench, one side fixedly connected with show structure of sand table supporting bench.

Further, the upper surface department fixedly connected with thin pole of engineering model's one end, the other end department fixedly connected with metal sheet of thin pole, the bottom surface department fixedly connected with metal soleplate of engineering model.

Furthermore, a servo motor is fixedly installed in the inner cavity of the slide rail shell, one end of a threaded rod is fixedly connected at the tail end of an output shaft of the servo motor, and the other end of the threaded rod extends to the position of the side wall of the inner cavity of the slide rail shell and is rotatably connected with the side wall of the inner cavity of the slide rail shell.

Further, the threaded rod penetrates through the sliding block and is in threaded fit with the sliding block.

Further, the mobile structure includes moving member, rotation motor, dwang, electric putter and electro-magnet, it is provided with the moving member to slide on the crossbeam, the inside of moving member is rotated and is connected with the dwang, the bottom department fixedly connected with electric putter's of dwang one end, electric putter's other end department fixedly connected with electro-magnet.

Further, the upper surface department fixed mounting of moving member has the rotation motor, fixed connection between the output shaft end of rotation motor and the top of dwang.

Further, two rotate between the backup pad and be connected with the hob, one side department fixed mounting of backup pad has No. two servo motor, fixed connection between No. two servo motor's the output shaft end and the one end of hob, the hob run through between the moving member and with the moving member screw cooperation.

Further, a fixed mounting is located to the bottom surface of sand table brace table has spacing fixed knot to be constructed, spacing fixed knot constructs including electric putter, connecting plate, spliced pole, cylindricality magnet and spacing piece No. two, the one end of electric putter is located No. two fixedly connected with of bottom surface of sand table brace table, No. two electric putter's other end department fixedly connected with connecting plate, fixedly connected with spliced pole on the connecting plate, the spacing piece of fixedly connected with is located at the top of spliced pole, the upper surface fixedly connected with cylindricality magnet of department of spacing piece, cylindricality magnet run through sand table brace table and with sand table brace table sliding fit.

Further, the length of the cylindrical magnet is the same as the thickness of the sand table supporting table.

Further, the sand table supporting table is fixedly mounted at the side edge of the display structure, the display structure comprises a display plate, a pressing plate, a sliding rod, a connecting sheet and a limiting spring, the sliding rod is arranged on the display plate in a penetrating mode, the pressing plate is fixedly connected to one end of the sliding rod, the connecting sheet is fixedly connected to the other end of the sliding rod, one end of the limiting spring is fixedly connected to one side of the connecting sheet, and the other end of the limiting spring extends to the side wall of the display plate and is fixedly connected with the display plate.

Through the above-mentioned embodiment of this application, can be comparatively convenient carry the removal to engineering model through moving the structure, conveniently take to engineering model and place, be convenient for carry out research and analysis to the engineering, through spacing fixed knot structure, can fix spacing upper surface department at the sand table brace table to engineering model, avoid the skew, fixed effect is better, can cooperate to move the structure and make to use more convenient, can fix the show through the engineering drawing that shows structure needs to use, the researcher of being convenient for is studied engineering model on this device with reference to the drawing, cooperation is moved structure and engineering model and is used, can be convenient for to the construction position of engineering model, position etc. carry out research and analysis.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of an internal structure of an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of a portion of the structure shown in FIG. 2B according to an embodiment of the present disclosure;

FIG. 5 is a schematic connection diagram of a first servo motor according to an embodiment of the present application;

FIG. 6 is a side connection schematic of a platen according to one embodiment of the present application.

In the figure: 1. sand table supporting table, 2, supporting legs, 3, slide rail shell, 4, a slide block, 5, a support piece, 6, a supporting plate, 7, a threaded rod, 8, a servo motor, 9, a cross beam, 10, a screw rod, 11, a moving part, 12, a rotating motor, 13, a rotating rod, 14, an electric push rod, 15, an electromagnet, 16, a second servo motor, 17, a second electric push rod, 18, a connecting plate, 19, a connecting column, 20, a cylindrical magnet, 21, a limiting sheet, 22, an engineering model, 23, a thin rod, 24, a metal plate, 25, a metal bottom plate, 26, a display plate, 27, a pressing plate, 28, a slide rod, 29, a connecting sheet, 30 and a limiting spring.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The moving structure in this embodiment may be applicable to various sand table models, for example, the following sand table model is provided in this embodiment, and the moving structure in this embodiment may be used to assist in moving the following sand table model.

The sand table model comprises a base and an outer frame, wherein an annular groove is formed in the surface of the outer ring of the outer frame in a surrounding manner, the outer frame is fixed in the annular groove in the upper end of the base in a surrounding manner, a first scale mark is arranged on the surface of the inner wall on the left side of the outer frame and is vertically arranged on the surface of the inner side of the outer frame, a second scale mark is arranged on the surface of the inner side of the rear end of the outer frame and is vertically arranged on the surface of the inner side of the outer frame, two clamping grooves are formed in two sides of the surface of the base, light transmission openings are vertically formed in the middle parts of the front side and the right side of the outer frame, the light transmission openings are vertically arranged on the surface of the outer frame, handles are vertically fixed at the upper ends of the left side and the right side of the outer frame, the annular groove is formed in the surface of the outer ring of the upper end of the base, the upper end of the base is fixed with the outer frame in a surrounding manner through the annular groove, and the sand table is fixed on the upper end of the base, can be through the convenient height of seeing out each building on the sand table of first scale mark and the second scale mark that the frame inboard surface set up, can be convenient for obtain each item data of planning, solved the problem that proposes among the background art.

Of course, the present embodiment can also be used to move sand table models of other structures. Here, no further details are given, and the hydraulic engineering cost analysis device according to the embodiment of the present application is described below.

Referring to fig. 1-6, a hydraulic engineering cost analysis device includes a sand table supporting platform 1, supporting legs 2, a sliding rail shell 3, a supporting plate 6, a beam 9, an engineering model 22, a moving structure, a limiting and fixing structure and a display structure;

the bottom surface of the sand table supporting table 1 is fixedly connected with four supporting legs 2, the four supporting legs 2 are respectively fixed at four corners of the lower surface of the sand table supporting table 1, two sides of the upper surface of the sand table supporting table 1 are fixedly connected with a sliding rail shell 3, a sliding block 4 is arranged in an inner cavity of the sliding rail shell 3 in a sliding manner, a supporting piece 5 is fixedly connected at the upper surface of the sliding block 4, the supporting piece 5 extends to the upper surface of the sliding rail shell 3 and is in sliding fit with the upper surface of the sliding rail shell 3, a supporting plate 6 is fixedly connected at the upper surface of the supporting piece 5, a cross beam 9 is fixedly connected at the top end of the supporting plate 6, a moving structure is arranged on the cross beam 9 in a sliding manner, a limiting fixed structure is fixedly arranged on the sand table supporting table 1, and a display structure is fixedly connected at the side edge of one side of the sand table 1, can be comparatively convenient carry the removal to engineering model 22 through moving the structure, conveniently take engineering model 22 and place, be convenient for carry out research and analysis to the engineering, through spacing fixed knot structure, can be fixed spacing in sand table brace table 1's upper surface department to engineering model 22, avoid the skew, fixed effect is better, can cooperate the moving structure to make and use more convenient. The engineering drawing that will use can be fixed the show through the show structure, and the researcher of being convenient for compares the drawing and studies engineering model 22 on this device, cooperates and removes structure and engineering model 22 and use, can be convenient for carry out research and analysis to building position, position etc. of engineering model 22.

One end of a thin rod 23 is fixedly connected to the upper surface of the engineering model 22, a metal plate 24 is fixedly connected to the other end of the thin rod 23, a metal bottom plate 25 is fixedly connected to the bottom surface of the engineering model 22, and by placing and fixing the engineering model 22, engineering cost analysis can be conveniently carried out by matching with engineering drawings, analysis work is intuitive, other personnel can conveniently watch and study, multiple people can conveniently match, and research and analysis effects are improved; a first servo motor 8 is fixedly installed in the inner cavity of the slide rail shell 3, one end of a threaded rod 7 is fixedly connected to the tail end of an output shaft of the first servo motor 8, the other end of the threaded rod 7 extends to the side wall of the inner cavity of the slide rail shell 3 and is rotatably connected with the side wall of the inner cavity of the slide rail shell 3, and the threaded rod 7 can be driven to rotate through the operation of the first servo motor 8; the threaded rod 7 penetrates through the sliding block 4 and is in threaded fit with the sliding block 4, the sliding block 4 can be driven to move through rotation of the threaded rod 7, the supporting plate 6 is further driven to move, the cross beam 9 is further driven to move, and the moving structure is further driven to move back and forth to adjust the position; the moving structure comprises a moving part 11, a rotating motor 12, a rotating rod 13, an electric push rod 14 and an electromagnet 15, the moving part 11 is arranged on the cross beam 9 in a sliding mode, the rotating rod 13 is rotatably connected inside the moving part 11, one end of the electric push rod 14 is fixedly connected to the bottom end of the rotating rod 13, the electromagnet 15 is fixedly connected to the other end of the electric push rod 14, and the position and the angle of the engineering model 22 can be conveniently controlled through movement, so that analysis work is facilitated; a rotating motor 12 is fixedly installed on the upper surface of the moving member 11, the tail end of an output shaft of the rotating motor 12 is fixedly connected with the top end of the rotating rod 13, the rotating rod 13 can be driven to rotate through the work of the rotating motor 12, and then the electric push rod 14 is driven to rotate, so that the angle of the electromagnet 15 can be adjusted, and the angle of the engineering model 22 fixed on the electromagnet 15 can be adjusted; a screw rod 10 is rotatably connected between the two support plates 6, a second servo motor 16 is fixedly installed at one side of each support plate 6, the tail end of an output shaft of each second servo motor 16 is fixedly connected with one end of the screw rod 10, the screw rod 10 penetrates through the moving part 11 and is in spiral fit with the moving part 11, the screw rod 10 can be driven to rotate through the work of the second servo motor 16, and the moving part 11 is driven to move left and right to adjust the position through the rotation of the screw rod 10; the bottom surface of the sand table supporting table 1 is fixedly provided with a limiting fixing structure, the limiting fixing structure comprises a second electric push rod 17, a connecting plate 18, a connecting post 19, a cylindrical magnet 20 and a limiting piece 21, one end of the second electric push rod 17 is fixedly connected to the bottom surface of the sand table supporting table 1, the other end of the second electric push rod 17 is fixedly connected to the connecting plate 18, the connecting post 19 is fixedly connected to the connecting plate 18, the top end of the connecting post 19 is fixedly connected to the limiting piece 21, the cylindrical magnet 20 is fixedly connected to the upper surface of the limiting piece 21, the cylindrical magnet 20 penetrates through the sand table supporting table 1 and is in sliding fit with the sand table supporting table 1, a fixed metal bottom plate 25 at the bottom surface of the engineering model 22 can be adsorbed and fixed through the cylindrical magnet 20, a limiting effect is achieved, and the engineering model 22 is prevented from deviating; the length of the columnar magnet 20 is the same as the thickness of the sand table supporting table 1; fixed mounting is located to sand table brace table 1's side department has the show structure, the show structure includes show board 26, clamp plate 27, slide bar 28, connection piece 29 and spacing spring 30, it is provided with slide bar 28 to run through the slip on the show board 26, the one end fixedly connected with clamp plate 27 of slide bar 28 department, the other end fixedly connected with connection piece 29 of slide bar 28 department, the one end of the spacing spring 30 of one side department fixedly connected with of connection piece 29, spacing spring 30's the other end extend to show board 26 lateral wall department and show between the board 26 fixed connection, can make clamp plate 27 compress tightly at show board 26 on the surface through spacing spring 30's elastic action, and then can compress tightly fixedly the engineering drawing, be convenient for observe.

When the application is in use, firstly, the engineering drawing to be used is placed on the surface of the display board 26, the pressing plate 27 can be pressed on the surface of the display board 26 through the elastic action of the limiting spring 30, and then the engineering drawing can be pressed and fixed, so that the observation is convenient, the engineering model 22 to be researched and used is placed on the upper surface of the sand table supporting table 1, the metal bottom plate 25 fixed on the bottom surface of the engineering model 22 can be adsorbed and fixed through the cylindrical magnet 20, the limiting effect is achieved, the deviation of the engineering model 22 is avoided, when the position and the angle of the engineering model 22 need to be adjusted, the electromagnet 15 can be driven to move downwards through the work of the electric push rod 14, so that the electromagnet 15 moves to the metal plate 24, the metal plate 24 is adsorbed and fixed through the electromagnet 15, and meanwhile, the electric push rod 17 No. two extends, so that the connecting column 19 moves downwards, further driving the cylindrical magnet 20 to move downwards to separate the cylindrical magnet 20 from the metal bottom plate 25, driving the engineering model 22 to rise by the contraction of the electric push rod 14, driving the rotating rod 13 to rotate by the operation of the rotating motor 12, further driving the electric push rod 14 to rotate, further adjusting the angle of the electromagnet 15, adjusting the angle of the engineering model 22 fixed on the electromagnet 15, driving the screw rod 10 to rotate by the operation of the second servo motor 16, further driving the moving member 11 to move leftwards and rightwards to adjust the position by the rotation of the screw rod 10, driving the threaded rod 7 to rotate by the operation of the first servo motor 8, driving the sliding block 4 to move by the rotation of the threaded rod 7, further driving the supporting plate 6 to move, further driving the beam 9 to move, further driving the moving structure to move forwards and backwards to adjust the position, and then adjusting the position of the engineering model 22, after the adjustment, the engineering model 22 can be placed on the upper surface of the sand table supporting table 1 by extending the electric push rod 14, and the electromagnet 15 stops working, so that the electromagnet 15 is separated from the metal plate 24, and the adjustment work can be completed.

The application has the advantages that:

1. the movable structure is reasonable in structure and flexible to use, the engineering model can be conveniently carried and moved through the movable structure, the engineering model can be conveniently taken and placed, and research and analysis on the engineering can be conveniently carried out;

2. the engineering model can be fixed and limited on the upper surface of the sand table supporting table through the limiting and fixing structure, so that the deviation is avoided, the fixing effect is good, and the engineering model can be matched with the moving structure to ensure that the use is more convenient;

3. the engineering drawing that needs to use can be fixed the show through the show structure, and the researcher of being convenient for compares the drawing and studies, cooperates and removes structure and engineering model use to the engineering model on this device, can be convenient for carry out research and analysis to building position, position etc. of engineering model.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a hydraulic engineering cost analytical equipment which characterized in that: the sand table comprises a sand table supporting table (1), supporting legs (2), a sliding rail shell (3), a supporting plate (6), a cross beam (9), an engineering model (22), a moving structure, a limiting and fixing structure and a display structure;

the sand table supporting platform comprises a sand table supporting platform (1), wherein the bottom surface of the sand table supporting platform (1) is fixedly connected with supporting legs (2), the number of the supporting legs (2) is four, the four supporting legs (2) are respectively fixed at four corners of the lower surface of the sand table supporting platform (1), two sides of the upper surface of the sand table supporting platform (1) are fixedly connected with sliding rail shells (3), a sliding block (4) is arranged in an inner cavity of each sliding rail shell (3) in a sliding mode, a supporting piece (5) is fixedly connected at the upper surface of each sliding rail shell (3), each supporting piece (5) extends to the upper surface of each sliding rail shell (3) and is in sliding fit with the upper surface of each sliding rail shell (3), a supporting plate (6) is fixedly connected at the upper surface of each supporting piece (5), a cross beam (9) is fixedly connected at the top end of each supporting plate (6), a moving structure is arranged on each cross beam (9), and a limiting fixing structure is arranged on the sand table supporting platform (1), and a display structure is fixedly connected to the side edge of one side of the sand table supporting table (1).

2. The hydraulic engineering cost analysis device of claim 1, characterized in that: the upper surface department fixedly connected with thin pole (23) of engineering model (22), the other end department fixedly connected with metal sheet (24) of thin pole (23), the bottom surface department fixedly connected with metal soleplate (25) of engineering model (22).

3. The hydraulic engineering cost analysis device of claim 1, characterized in that: the sliding rail shell is characterized in that a servo motor (8) is fixedly mounted in an inner cavity of the sliding rail shell (3), one end of a threaded rod (7) is fixedly connected to the tail end of an output shaft of the servo motor (8), and the other end of the threaded rod (7) extends to the inner cavity side wall of the sliding rail shell (3) and is rotatably connected with the inner cavity side wall of the sliding rail shell (3).

4. A hydraulic engineering cost analysis apparatus according to claim 3, characterized in that: the threaded rod (7) penetrates through the sliding block (4) and is in threaded fit with the sliding block (4).

5. The hydraulic engineering cost analysis device of claim 1, characterized in that: the movable structure comprises a moving part (11), a rotating motor (12), a rotating rod (13), an electric push rod (14) and an electromagnet (15), wherein the moving part (11) is arranged on the cross beam (9) in a sliding mode, the rotating rod (13) is connected to the inside of the moving part (11) in a rotating mode, one end of the electric push rod (14) is fixedly connected to the bottom end of the rotating rod (13), and the electromagnet (15) is fixedly connected to the other end of the electric push rod (14).

6. The hydraulic engineering cost analysis device of claim 5, characterized in that: the upper surface department fixed mounting of moving member (11) has rotation motor (12), fixed connection between the output shaft end of rotation motor (12) and the top of dwang (13).

7. The hydraulic engineering cost analysis device of claim 1, characterized in that: two rotate between backup pad (6) and be connected with hob (10), one side department fixed mounting of backup pad (6) has No. two servo motor (16), fixed connection between the output shaft end of No. two servo motor (16) and the one end of hob (10), hob (10) run through between moving member (11) and with moving member (11) screw cooperation.

8. The hydraulic engineering cost analysis device of claim 1, characterized in that: fixed mounting is located to the bottom surface of sand table brace table (1) has spacing fixed knot to construct, spacing fixed knot constructs including electric putter (17) No. two, connecting plate (18), spliced pole (19), cylindricality magnet (20) and spacing piece (21), the one end of electric putter (17) No. two of fixedly connected with is located to the bottom surface of sand table brace table (1), another end department fixedly connected with connecting plate (18) of electric putter (17) No. two, fixedly connected with spliced pole (19) are gone up in connecting plate (18), spacing piece (21) of fixedly connected with is located on the top of spliced pole (19), the last surface department fixedly connected with cylindricality magnet (20) of spacing piece (21), cylindricality magnet (20) run through sand table brace table (1) and with sand table brace table (1) sliding fit.

9. The hydraulic engineering cost analysis device of claim 8, wherein: the length of the cylindrical magnet (20) is the same as the thickness of the sand table supporting table (1).

10. The hydraulic engineering cost analysis device of claim 1, characterized in that: fixed mounting is located to the side of sand table brace table (1) has the show structure, the show structure is including show board (26), clamp plate (27), slide bar (28), connection piece (29) and spacing spring (30), it is provided with slide bar (28) to run through the slip on show board (26), fixedly connected with clamp plate (27) are located to the one end of slide bar (28), the other end department fixedly connected with connection piece (29) of slide bar (28), the one end of one side department fixedly connected with spacing spring (30) of connection piece (29), the other end of spacing spring (30) extend to show board (26) lateral wall department and with show between the board (26) fixed connection.

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