CN114960365B - Pouring vehicle device based on BIM technology - Google Patents
Pouring vehicle device based on BIM technology Download PDFInfo
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- CN114960365B CN114960365B CN202210617909.6A CN202210617909A CN114960365B CN 114960365 B CN114960365 B CN 114960365B CN 202210617909 A CN202210617909 A CN 202210617909A CN 114960365 B CN114960365 B CN 114960365B
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- 238000005516 engineering process Methods 0.000 title claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 147
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 230000001276 controlling effect Effects 0.000 claims abstract description 39
- 230000009467 reduction Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 8
- 239000007924 injection Substances 0.000 claims abstract description 8
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims description 85
- 238000005266 casting Methods 0.000 claims description 56
- 239000000203 mixture Substances 0.000 claims description 47
- 239000002994 raw material Substances 0.000 claims description 47
- 238000007790 scraping Methods 0.000 claims description 29
- 238000013019 agitation Methods 0.000 claims 4
- 238000010276 construction Methods 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4866—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
- B28C7/022—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component
- B28C7/024—Controlling the operation of the mixing by measuring the consistency or composition of the mixture, e.g. with supply of a missing component by measuring properties of the mixture, e.g. moisture, electrical resistivity, density
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
- B28C7/126—Supply means, e.g. nozzles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention relates to a pouring vehicle device based on BIM technology, which relates to the technical field of pouring vehicles and comprises a vehicle body, wherein an injection port, a stirring mechanism, a water tank and a first electromagnetic valve are arranged at the top of the vehicle body, the first electromagnetic valve is arranged in the water tank, a leveling mechanism is arranged at the tail of the vehicle body, a controller is arranged on the outer side wall of the vehicle body, the controller is used for controlling the pouring process, regulating stirring speed, stirring water adding quantity and pouring flow, a gravity sensor is arranged at the bottom of the vehicle body, a discharge port is further arranged at the bottom of the vehicle body, a second electromagnetic valve is arranged in the discharge port, and the stirring mechanism comprises a driving motor, a reduction gearbox, a fixing seat, a main frame body, an auxiliary frame body leveling mechanism, a portal frame, a hydraulic telescopic rod, a connecting frame and a scraper stabilizing mechanism. The invention effectively improves the pouring efficiency.
Description
Technical Field
The invention relates to the technical field of casting vehicles, in particular to a casting vehicle device based on BIM technology.
Background
Cement roads are very common in mountain areas, however, when cement is poured on the roads in construction, the cement which is just poured is not coagulated due to the large gradient of the roads, and the cement flows downwards from the slopes, so that the problem that the cement on the slopes is thin and the cement is thick down the slopes is caused, and reworking repair is required, so that the pouring efficiency is low.
Chinese patent publication No. CN209099119U discloses a cement road construction is with pouring device, including box and discharge gate, the lower extreme at the box is connected to the discharge gate, the discharge gate is a plurality of, and a plurality of discharge gates even distribution has all screwed the lower cover at the box lower extreme, the gyro wheel is all installed through supporting beam to the lower extreme both sides of box, the gyro wheel is four, and four gyro wheels all are arranged in the upper end of baffle, the baffle is two, and two baffles all support the upper end at the road surface through the bracing piece, the left side lower extreme fixed surface of box has driving motor. Therefore, the technical scheme solves the problems that cement is carried and poured rapidly, the method is suitable for pouring road surfaces with no gradient or very low gradient, cement which is poured immediately is not coagulated for pouring road surfaces with larger gradient, cement flows downwards from a slope, and cement on the slope is thin and cement is thick under the slope, so reworking repair is required, time and labor are wasted, and pouring efficiency is low.
Disclosure of Invention
Therefore, the invention provides a pouring truck device based on BIM technology, which is used for solving the problem of low pouring efficiency caused by large gradient of a construction site in the prior art.
In order to achieve the above object, the present invention provides a pouring truck device based on the BIM technology, comprising,
the device comprises a vehicle body, wherein an injection port, a stirring mechanism, a water tank and a first electromagnetic valve are arranged at the top of the vehicle body, the injection port is used for injecting a raw material mixture into the vehicle body, the stirring mechanism is used for stirring the raw material mixture, the first electromagnetic valve is arranged in the water tank and used for controlling stirring water adding quantity, a leveling mechanism is arranged at the tail of the vehicle body and used for leveling poured cement at the same height so as to level the poured cement, a controller is arranged on the outer side wall of the vehicle body and used for controlling the pouring process, a gravity sensor is arranged at the bottom of the vehicle body and used for detecting the weight of the raw material mixture in the vehicle body, a discharge port is further arranged at the bottom of the vehicle body, and a second electromagnetic valve is arranged in the discharge port and used for controlling the pouring flow of the cement;
when the viscosity of the cement in the vehicle body is controlled, the controller is also used for setting the viscosity of the cement in the vehicle body according to the gradient P of the target area, when the raw material mixture added into the vehicle body is stirred, the controller is also used for controlling the stirring water adding amount according to the adding amount M of the raw material mixture, regulating the stirring water adding amount according to the cement viscosity Ai, and when the stirring mechanism is controlled to stir, the controller is also used for setting the stirring speed according to the regulated stirring water adding amount;
when the pouring flow of cement is controlled, the controller is further used for controlling the pouring flow Qi according to the pouring thickness C of the target area, after the pouring flow Qi is determined, the controller is further used for adjusting the pouring flow Qi according to the gradient P of the target area, after the adjustment is completed, the controller is further used for correcting the adjusted pouring flow Qi' according to the current driving distance L, and when the distance between the scraping plate and the ground is controlled, the controller is further used for setting the distance between the scraping plate and the ground according to the corrected pouring flow Qi ".
Further, the controller obtains the gradient P of the target area when controlling the viscosity of the cement in the vehicle body, compares the gradient P with the preset gradient P0, sets the viscosity of the cement in the vehicle body according to the comparison result, wherein,
when P is less than or equal to P0, the controller sets the viscosity of cement in the vehicle body to be A1, wherein A1 is a preset value;
when P > P0, the controller sets the viscosity of cement in the vehicle body to A2, and sets a2=a1+a1× (P-P0)/P.
Further, the controller compares the detected addition amount M of the raw material mixture with the preset weight M0 of the raw material mixture when stirring the raw material mixture added into the vehicle body, and controls the stirring addition amount according to the comparison result, wherein,
when M is less than or equal to M0, the controller sets the stirring water adding amount to be E1, and E1 is a preset value;
when M > M0, the controller sets the stirring water addition amount to E2, and sets e2=e1+e1× (M-M0)/M.
Further, when the controller sets the stirring water adding amount, the set cement viscosity Ai is compared with the preset cement viscosity A0, i=1, 2 is set, the stirring water adding amount Ej is adjusted according to the comparison result, j=1, 2 is set,
when Ai is less than or equal to A0, the controller does not adjust;
when Ai is greater than A0, the controller selects the adjusting coefficient g to adjust the stirring water adding amount Ej so as to increase the stirring water adding amount Ej,1 < g is less than 1.1, the adjusted stirring water adding amount is Ej ', and Ej' =Ej×g is set.
Further, the controller compares the adjusted stirring water adding amount Ej' with a preset stirring water adding amount Ej0 when controlling the stirring mechanism to stir, and sets the stirring speed according to the comparison result,
when Ej' is less than or equal to Ej0, the controller sets the stirring speed to Y1, and Y1 is a preset value;
when Ej ' > Ej0, the controller sets the stirring speed to Y2, and sets y2=y1+y1× (Ej ' -Ej 0)/Ej '.
Further, after the stirring is completed, the controller obtains the casting thickness C of the target area when controlling the casting flow of the cement, compares the casting thickness C with the preset casting thickness C0, sets the casting flow according to the comparison result, wherein,
when C is less than or equal to C0, the controller sets the pouring flow as Q1, and sets Q1=Q0×C/C0, wherein Q0 is a preset standard pouring flow;
when C > C0, the controller sets the pouring flow to Q2, and sets q2=q1+q1× (C-C0)/C0.
Further, the controller compares the obtained gradient P of the target area with a preset gradient P0 when controlling the pouring flow of cement, adjusts the pouring flow Qi according to the comparison result, sets i=1, 2,
when P is less than or equal to P0, the controller does not regulate;
when P > P0, the controller selects a pouring flow rate adjustment coefficient k to adjust the pouring flow rate Qi to increase the pouring flow rate Qi,1 < k < 1.1, and the adjusted pouring flow rate is Qi ', and Qi' =qi×k is set.
Further, the controller obtains the current driving distance L when controlling the pouring flow of the cement, compares the current driving distance L with the total driving distance L0, corrects the pouring flow according to the comparison result, wherein,
when L is more than 1/3×L0 and less than or equal to 2/3×L0, the controller selects a first correction coefficient z1 to correct the regulated pouring flow Qi', wherein z1 is more than 0.9 and less than 1;
when L is more than 2/3×L0 and less than or equal to L0, the controller selects a second correction coefficient z2 to correct the regulated pouring flow Qi', wherein z2 is more than 0.85 and less than 0.9;
when the mth correction coefficient zm is selected to correct the adjusted pouring flow Qi ', m=1, 2 is set, the corrected pouring flow Qi "is set, and Qi" =qi' ×zm is set.
Further, the controller compares the corrected pouring flow Qi' with the preset pouring flow Qi0 when controlling the distance between the scraping plate and the ground, and sets the distance between the scraping plate and the ground according to the comparison result,
when Qi is less than or equal to Qi0, the controller sets the distance between the scraping plate and the ground to be R1, wherein R1 is a preset value;
when Qi "> Qi0, the controller sets the squeegee to ground spacing to R2, setting r2=r1+r1× (Qi" -Qi 0)/Qi.
Further, the stirring mechanism comprises a driving motor, a reduction gearbox, a fixing seat, a main frame body and auxiliary frame bodies, wherein the driving motor is installed at the top of the vehicle body through the reduction gearbox, the driving motor is used for driving stirring, the reduction gearbox is used for reducing the rotating speed of the driving motor so as to increase the rotating torque, the fixing seat is installed right below the reduction gearbox, the fixing seat is used for fixing the main frame body, one end of the main frame body penetrates through the fixing seat and is connected with an output shaft of the reduction gearbox, the auxiliary frame bodies are symmetrically installed at two sides of the main frame body in an equidistant arrangement mode, and the auxiliary frame bodies are used for fully stirring a raw material mixture;
the trowelling mechanism comprises a portal frame, a hydraulic telescopic rod, a connecting frame and a scraping plate, wherein the hydraulic telescopic rod penetrates through the portal frame to be connected with one end of the connecting frame, the other end of the connecting frame is connected with the scraping plate, the connecting frame is U-shaped, the portal frame is used for limiting the connecting ends of the connecting frame and the hydraulic telescopic rod to be vertical and stable in the connecting frame, and the hydraulic telescopic rod is used for stretching and driving the connecting frame to move up and down so as to adjust the distance between the scraping plate and the ground;
the stabilizing mechanism comprises a mounting frame, a sleeve, a supporting rod, a buffer spring and a guide wheel, wherein one end of the mounting frame is connected with the sleeve, the other end of the mounting frame is mounted on the outer side of the vehicle body, the buffer spring passes through the supporting rod and is arranged between the sleeve and the guide wheel, the sleeve is sleeved on the supporting rod and is used for moving up and down along with deformation of the buffer spring so as to adapt to the ground, the mounting frame is used for mounting and fixing the vehicle body and the sleeve together, and the guide wheel is used for rotating along with movement of the vehicle body along with the ground contact;
the car body is also provided with an alarm lamp, and the alarm lamp is used for sending out an alarm signal.
Compared with the prior art, the device has the advantages that the device is applied to cement road pouring with large gradient, the raw material mixture comprises cement, gravel and the like, the BIM technology is applied to perform information modeling and simulation construction before construction, the gradient and other information parameters of a target area are calculated to prepare for construction, the stirring speed is controlled by the stirring mechanism to improve the stirring efficiency, the weight of the raw material mixture is detected by the gravity sensor to obtain the weight of the vehicle body to improve the accuracy of stirring and water adding quantity, the pouring efficiency is improved, the poured cement is leveled at the same height by the leveling mechanism to improve the leveling accuracy of the poured cement, the pouring efficiency is improved, the supporting area of the vehicle body and the ground is increased by the stabilizing mechanism, the vehicle body is prevented from tilting, the stability of the vehicle body is improved, the pouring efficiency is improved, the stirring and water adding quantity is controlled by the first electromagnetic valve to improve the accuracy of cement viscosity, the pouring efficiency is improved, the pouring flow of the cement is controlled by the second electromagnetic valve to improve the pouring efficiency, the pouring efficiency is controlled by the controller to improve the pouring efficiency,
in particular, when controlling the viscosity of the cement in the vehicle body, the gradient of the target area is obtained and compared with the preset gradient, if the gradient of the target area is within the preset gradient, the viscosity of the cement in the vehicle body is set to be A1, A1 is set to be a preset value, if the gradient of the target area is outside the preset gradient, the viscosity of the cement in the vehicle body is set to be A2, A2 is calculated according to A1, and different cement viscosities are set through different gradients, so that the accuracy of the cement viscosity is improved, and the pouring efficiency is improved.
In particular, the controller in this embodiment effectively ensures the accuracy of the stirring water adding amount by controlling the stirring water adding amount according to the weight of the raw material mixture, so as to further improve the pouring efficiency, and compares the detected adding amount M of the raw material mixture with the preset raw material mixture weight M0 when stirring the raw material mixture added into the vehicle body, and sets the stirring water adding amount to be E1 and E1 as preset values if the detected adding amount M of the raw material mixture is within the preset raw material mixture weight M0, and sets the stirring water adding amount to be E2 if the detected adding amount M of the raw material mixture is outside the preset raw material mixture weight M0, and calculates E2 according to E1, so as to improve the accuracy of the stirring water adding amount by setting the stirring water adding amount, so as to improve the pouring efficiency.
Especially, the controller according to this embodiment adjusts the stirring water adding amount by selecting the adjustment coefficient according to the cement viscosity, so as to effectively ensure the precision of the stirring water adding amount, thereby further improving the pouring efficiency.
Especially, the controller in this embodiment effectively ensures the accuracy of the stirring speed by setting the stirring speed according to the adjusted stirring water adding amount Ej ', so as to further improve the pouring efficiency, compares the adjusted stirring water adding amount Ej' with the preset stirring water adding amount Ej0, sets the stirring speed to be Y1 if the adjusted stirring water adding amount Ej 'is within the preset stirring water adding amount Ej0, sets the stirring speed to be Y2 if the adjusted stirring water adding amount Ej' is outside the preset stirring water adding amount Ej0, and calculates Y2 according to Y1, and sets the stirring speed to improve the stirring accuracy, so as to improve the pouring efficiency.
Particularly, the controller in this embodiment sets the pouring flow according to the pouring thickness of the target area, so as to effectively ensure the accuracy of the pouring flow, thereby further improving the pouring efficiency, and when the controller controls the pouring flow of cement, obtains the pouring thickness C of the target area, compares the pouring thickness C with the preset pouring thickness C0, and if the pouring thickness C of the target area is within the preset pouring thickness C0, sets the pouring flow as Q1 and a calculation formula in which Q1 is reduced within the range of the pouring thickness, and sets Q0 as a preset standard pouring flow, and if the pouring thickness C of the target area is outside the preset pouring thickness C0, sets the pouring flow as Q2, and sets a calculation formula in which Q2 is increased according to the calculation of Q1, thereby effectively ensuring the accuracy of the pouring flow, and further improving the pouring efficiency.
Especially, the controller in this embodiment effectively ensures the accuracy of pouring flow by selecting the adjustment coefficient of pouring flow according to the gradient P of the target area, thereby further improving the pouring efficiency, when controlling the pouring flow of cement, the controller adjusts the pouring flow according to the gradient, compares the obtained gradient P of the target area with the preset gradient, if the gradient P of the target area is within the preset gradient, the controller does not adjust, if the gradient P of the target area is outside the preset gradient, the controller selects the adjustment coefficient of pouring flow to adjust the pouring flow, thereby increasing the pouring flow, effectively ensuring the accuracy of the pouring flow, and further improving the pouring efficiency.
In particular, in the pouring process of the embodiment, the vehicle body is poured from the slope to the slope, the controller corrects the regulated pouring flow Qi 'by selecting the corresponding correction coefficient according to the current running distance, so that the accuracy of the pouring flow Qi' is effectively ensured, and the pouring efficiency is further improved.
Especially, the controller in this embodiment effectively ensures the casting accuracy by controlling the gap between the scraping plate and the ground according to the corrected casting flow Qi ", so as to further improve the casting efficiency, when the controller controls the gap between the scraping plate and the ground, the controller compares the corrected casting flow Qi" with the preset casting flow Qi0, if the corrected casting flow Qi "is within the preset casting flow Qi0, the controller sets the gap between the scraping plate and the ground as R1, sets R1 as a preset value, and if the corrected casting flow Qi" is outside the preset casting flow Qi0, the controller sets the gap between the scraping plate and the ground as R2, calculates R2 according to R1, and sets the gap between the scraping plate and the ground so as to improve the casting accuracy, so as to improve the casting efficiency.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a pouring truck device based on the BIM technology in this embodiment;
FIG. 2 is a schematic structural view of the stirring mechanism of the present embodiment;
FIG. 3 is a schematic view of the trowelling mechanism of the present embodiment;
fig. 4 is a schematic structural view of the stabilizing mechanism according to the present embodiment.
In the figure: the device comprises a vehicle body 1, an observation window 2, an injection port 3, a stirring mechanism 4, a driving motor 401, a reduction gearbox 402, a fixed seat 403, a main frame 404, a secondary frame 405, an alarm lamp 5, a trowelling mechanism 6, a portal frame 601, a hydraulic telescopic rod 602, a connecting frame 603, a scraper 604, a discharge port 7, a stabilizing mechanism 8, a mounting frame 801, a sleeve 802, a supporting rod 803, a buffer spring 804, a guide wheel 805, a water tank 9, a first electromagnetic valve 10, a gravity sensor 11, a controller 12 and a second electromagnetic valve 13.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, the structure of the pouring vehicle device based on the BIM technology of the present embodiment is shown, the device includes a vehicle body 1, an injection port 3, a stirring mechanism 4, a water tank 9, a first electromagnetic valve 10 and a warning light 5 are disposed at the top of the vehicle body 1, the injection port 3 is used for injecting a raw material mixture into the vehicle body 1, the stirring mechanism 4 is used for stirring the raw material mixture, the first electromagnetic valve 10 is disposed in the water tank 9 and is used for controlling the stirring and water adding amount, the warning light 5 is used for sending a warning signal, a leveling mechanism 6 is disposed at the tail of the vehicle body 1 and is used for leveling the poured cement at the same height, a controller 12 and an observation window 2 are disposed on the outer side wall of the vehicle body 1, the controller 12 is used for controlling the pouring process and inputting control parameters, the observation window 2 is used for observing the internal condition of the vehicle body 1, a gravity sensor 11 is disposed at the bottom of the vehicle body 1, a discharge port 7 is further disposed at the bottom of the vehicle body 1, a second electromagnetic valve 13 is disposed in the discharge port 7 and is used for stabilizing the flow of the vehicle body 1, and a stable electromagnetic valve 8 is disposed at both sides of the vehicle body 1; when the viscosity of the cement in the vehicle body is controlled, the controller is also used for setting the viscosity of the cement in the vehicle body according to the gradient P of the target area, when the raw material mixture added into the vehicle body is stirred, the controller is also used for controlling the stirring water adding amount according to the adding amount M of the raw material mixture, regulating the stirring water adding amount according to the cement viscosity Ai, and when the stirring mechanism is controlled to stir, the controller is also used for setting the stirring speed according to the regulated stirring water adding amount;
when the pouring flow of cement is controlled, the controller is further used for controlling the pouring flow Qi according to the pouring thickness C of the target area, after the pouring flow Qi is determined, the controller is further used for adjusting the pouring flow Qi according to the gradient P of the target area, after the adjustment is completed, the controller is further used for correcting the adjusted pouring flow Qi' according to the current driving distance L, and when the distance between the scraping plate and the ground is controlled, the controller is further used for setting the distance between the scraping plate and the ground according to the corrected pouring flow Qi ".
Referring to fig. 2, the stirring mechanism 4 includes a driving motor 401, a reduction gearbox 402, a fixing seat 403, a main frame 404, and an auxiliary frame 405, where the driving motor 401 is installed at the top of the vehicle body 1 through the reduction gearbox 402, the driving motor 401 is used to drive and stir, the reduction gearbox 402 is used to reduce the rotation speed of the driving motor 401, so as to increase the rotating torque force, the fixing seat 403 is installed under the reduction gearbox 402, the fixing seat 403 is used to fix the main frame 404, one end of the main frame 404 penetrates through the fixing seat 403 and is connected with an output shaft of the reduction gearbox 402, the auxiliary frame 405 is symmetrically installed at two sides of the main frame 404 in an 'F' -shape and distributed in an equidistant manner, and the auxiliary frame 405 is used to sufficiently stir the raw material mixture.
Referring to fig. 3, the trowelling mechanism 6 includes a gantry 601, a hydraulic telescopic rod 602, a connecting frame 603, and a scraper 604, wherein the hydraulic telescopic rod 602 passes through the gantry 601 and is connected with one end of the connecting frame 603, the other end of the connecting frame 603 is connected with the scraper 604, the connecting frame 603 is in a "U" shape, the gantry 601 is used for limiting the connecting ends of the connecting frame 603 and the hydraulic telescopic rod 602 to be vertically stable in the interior of the connecting frame, and the hydraulic telescopic rod 602 is used for stretching and driving the connecting frame 603 to move up and down so as to adjust the distance between the scraper and the ground.
Referring to fig. 4, the stabilizing mechanism 8 includes a mounting frame 801, a sleeve 802, a support bar 803, a buffer spring 804, and a guide wheel 805, wherein one end of the mounting frame 801 is connected to the sleeve 802, the other end of the mounting frame 801 is mounted on the outer side of the vehicle body 1, the buffer spring 804 is disposed between the sleeve 802 and the guide wheel 805 through the support bar 803, the sleeve 802 is sleeved on the support bar 803, and is configured to move up and down along with deformation of the buffer spring 804 to adapt to the ground, the mounting frame 801 is configured to mount and fix the vehicle body 1 and the sleeve 802 together, and the guide wheel 805 is configured to contact with the ground and rotate along with movement of the vehicle body 1.
Specifically, the device of the embodiment is applied to the cement road casting with large gradient, the raw material mixture comprises cement, gravel and the like, the BIM technology is applied to perform information modeling, construction is simulated, the gradient and other information parameters of a target area are calculated to prepare for construction, the stirring speed is controlled by the stirring mechanism to improve the stirring efficiency, the weight of the raw material mixture is obtained by detecting the weight of the vehicle body by the gravity sensor to improve the accuracy of stirring water adding amount, the casting efficiency is improved, the cement is leveled at the same height by the leveling mechanism to improve the leveling accuracy of the cement, the casting efficiency is improved, the supporting area of the vehicle body and the ground is increased by the stabilizing mechanism, the vehicle body is prevented from tilting, the stability of the vehicle body is improved, the casting efficiency is improved, the stirring water adding amount is controlled by the first electromagnetic valve to improve the accuracy of cement viscosity, the casting efficiency is improved, the casting flow of the cement is controlled by the second electromagnetic valve to improve the casting efficiency, the casting process is controlled by the controller to improve the casting efficiency,
specifically, the controller obtains the gradient P of the target area when controlling the viscosity of the cement in the vehicle body, compares the gradient P with the preset gradient P0, sets the viscosity of the cement in the vehicle body according to the comparison result, wherein,
when P is less than or equal to P0, the controller sets the viscosity of cement in the vehicle body to be A1, wherein A1 is a preset value;
when P > P0, the controller sets the viscosity of cement in the vehicle body to A2, and sets a2=a1+a1× (P-P0)/P.
Specifically, when controlling the viscosity of the cement in the vehicle body, the gradient of the target area is obtained and compared with the preset gradient, if the gradient of the target area is within the preset gradient, the viscosity of the cement in the vehicle body is set to be A1, A1 is set to be a preset value, if the gradient of the target area is outside the preset gradient, the viscosity of the cement in the vehicle body is set to be A2, A2 is calculated according to A1, and different cement viscosities are set through different gradients, so that the accuracy of the cement viscosity is improved, and the pouring efficiency is improved. It can be understood that, in this embodiment, the method for obtaining the gradient of the target area is not specifically limited, and a person skilled in the art can freely set the method, such as a method for inputting the gradient into the controller, and the like, and can obtain the gradient in other ways, so long as the requirement is met.
Specifically, the controller compares the detected addition amount M of the raw material mixture with the weight M0 of the preset raw material mixture when stirring the raw material mixture added into the vehicle body, and controls the stirring addition amount according to the comparison result, wherein,
when M is less than or equal to M0, the controller sets the stirring water adding amount to be E1, and E1 is a preset value;
when M > M0, the controller sets the stirring water addition amount to E2, and sets e2=e1+e1× (M-M0)/M.
Specifically, the controller in this embodiment effectively ensures the accuracy of the stirring water adding amount by controlling the stirring water adding amount according to the weight of the raw material mixture, so as to further improve the pouring efficiency, compares the detected adding amount M of the raw material mixture with the preset raw material mixture weight M0 when stirring the raw material mixture added into the vehicle body, sets the stirring water adding amount to be E1 and E1 to be a preset value if the detected adding amount M of the raw material mixture is within the preset raw material mixture weight M0, sets the stirring water adding amount to be E2 if the detected adding amount M of the raw material mixture is outside the preset raw material mixture weight M0, and calculates E2 according to E1 by setting the stirring water adding amount so as to improve the accuracy of the stirring water adding amount, so as to improve the pouring efficiency.
Specifically, when the controller sets the stirring water adding amount, the set cement viscosity Ai is compared with the preset cement viscosity A0, i=1, 2 is set, the stirring water adding amount Ej is adjusted according to the comparison result, j=1, 2 is set,
when Ai is less than or equal to A0, the controller does not adjust;
when Ai is greater than A0, the controller selects the adjusting coefficient g to adjust the stirring water adding amount Ej so as to increase the stirring water adding amount Ej,1 < g is less than 1.1, the adjusted stirring water adding amount is Ej ', and Ej' =Ej×g is set.
Specifically, the controller in this embodiment adjusts the stirring water adding amount by selecting the adjustment coefficient according to the cement viscosity, so that the precision of the stirring water adding amount is effectively ensured, and the pouring efficiency is further improved.
Specifically, the controller compares the adjusted stirring water adding amount Ej' with a preset stirring water adding amount Ej0 when controlling the stirring mechanism to stir, and sets the stirring speed according to the comparison result,
when Ej' is less than or equal to Ej0, the controller sets the stirring speed to Y1, and Y1 is a preset value;
when Ej ' > Ej0, the controller sets the stirring speed to Y2, and sets y2=y1+y1× (Ej ' -Ej 0)/Ej '.
Specifically, the controller in this embodiment effectively ensures the accuracy of the stirring speed by setting the stirring speed according to the adjusted stirring water adding amount Ej ', so as to further improve the pouring efficiency, compares the adjusted stirring water adding amount Ej' with the preset stirring water adding amount Ej0, sets the stirring speed to be Y1 if the adjusted stirring water adding amount Ej 'is within the preset stirring water adding amount Ej0, sets the stirring speed to be Y2 if the adjusted stirring water adding amount Ej' is outside the preset stirring water adding amount Ej0, and calculates Y2 according to Y1, and sets the stirring speed to improve the stirring accuracy, so as to improve the pouring efficiency. It will be appreciated that the pre-stirring time is not limited in this embodiment, and one skilled in the art may set the pre-stirring time according to the weight of the raw material mixture in the vehicle body, and may set other modes, and only needs to meet the requirements.
Specifically, after the stirring is completed, the controller obtains the casting thickness C of the target area when controlling the casting flow of the cement, compares the casting thickness C with the preset casting thickness C0, sets the casting flow according to the comparison result, wherein,
when C is less than or equal to C0, the controller sets the pouring flow as Q1, and sets Q1=Q0×C/C0, wherein Q0 is a preset standard pouring flow;
when C > C0, the controller sets the pouring flow to Q2, and sets q2=q1+q1× (C-C0)/C0.
Specifically, the controller in this embodiment sets the pouring flow according to the pouring thickness of the target area, so as to effectively ensure the accuracy of the pouring flow, thereby further improving the pouring efficiency, and when the controller controls the pouring flow of cement, obtains the pouring thickness C of the target area, compares the pouring thickness C with the preset pouring thickness C0, and if the pouring thickness C of the target area is within the preset pouring thickness C0, sets the pouring flow as Q1 and a calculation formula in which Q1 is reduced within the range of the pouring thickness, and sets Q0 as a preset standard pouring flow, and if the pouring thickness C of the target area is outside the preset pouring thickness C0, sets the pouring flow as Q2, and sets a calculation formula in which Q2 is increased according to the calculation of Q1, thereby effectively ensuring the accuracy of the pouring flow, and further improving the pouring efficiency.
Specifically, the controller compares the obtained gradient P of the target area with a preset gradient P0 when controlling the pouring flow of cement, and adjusts the pouring flow Qi according to the comparison result, setting i=1, 2,
when P is less than or equal to P0, the controller does not regulate;
when P > P0, the controller selects a pouring flow rate adjustment coefficient k to adjust the pouring flow rate Qi to increase the pouring flow rate Qi,1 < k < 1.1, and the adjusted pouring flow rate is Qi ', and Qi' =qi×k is set.
Specifically, the controller in this embodiment effectively ensures the accuracy of pouring flow by selecting the adjustment coefficient of pouring flow according to the gradient P of the target area, thereby further improving the pouring efficiency, when controlling the pouring flow of cement, the controller adjusts the pouring flow according to the gradient, compares the obtained gradient P of the target area with the preset gradient, if the gradient P of the target area is within the preset gradient, does not adjust, and if the gradient P of the target area is outside the preset gradient, the controller selects the adjustment coefficient of pouring flow to adjust the pouring flow, thereby increasing the pouring flow, effectively ensuring the accuracy of the pouring flow, and further improving the pouring efficiency.
Specifically, the controller obtains the current driving distance L when controlling the pouring flow of cement, compares the current driving distance L with the total driving distance L0, corrects the pouring flow according to the comparison result, wherein,
when L is more than 1/3×L0 and less than or equal to 2/3×L0, the controller selects a first correction coefficient z1 to correct the regulated pouring flow Qi', wherein z1 is more than 0.9 and less than 1;
when L is more than 2/3×L0 and less than or equal to L0, the controller selects a second correction coefficient z2 to correct the regulated pouring flow Qi', wherein z2 is more than 0.85 and less than 0.9;
when the mth correction coefficient zm is selected to correct the adjusted pouring flow Qi ', m=1, 2 is set, the corrected pouring flow Qi "is set, and Qi" =qi' ×zm is set.
Specifically, the pouring process of the embodiment is to pour the vehicle body from the slope to the slope, the controller corrects the adjusted pouring flow Qi 'by selecting the corresponding correction coefficient according to the current running distance, the accuracy of the pouring flow Qi' is effectively guaranteed, and the pouring efficiency is further improved.
Specifically, when the controller controls the distance between the scraping plate and the ground, the corrected pouring flow Qi' is compared with the preset pouring flow Qi0, and the distance between the scraping plate and the ground is set according to the comparison result,
when Qi is less than or equal to Qi0, the controller sets the distance between the scraping plate and the ground to be R1, wherein R1 is a preset value;
when Qi "> Qi0, the controller sets the squeegee to ground spacing to R2, setting r2=r1+r1× (Qi" -Qi 0)/Qi.
Specifically, the controller in this embodiment effectively ensures the casting accuracy by controlling the gap between the scraping plate and the ground according to the corrected casting flow Qi ", so as to further improve the casting efficiency, when the controller controls the gap between the scraping plate and the ground, the controller compares the corrected casting flow Qi" with the preset casting flow Qi0, if the corrected casting flow Qi "is within the preset casting flow Qi0, the controller sets the gap between the scraping plate and the ground as R1, sets R1 as a preset value, and if the corrected casting flow Qi" is outside the preset casting flow Qi0, the controller sets the gap between the scraping plate and the ground as R2, calculates R2 according to R1, and sets the gap between the scraping plate and the ground so as to improve the casting accuracy, so as to improve the casting efficiency.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
Claims (7)
1. A pouring truck device based on BIM technology is characterized by comprising,
the device comprises a vehicle body, wherein an injection port, a stirring mechanism, a water tank and a first electromagnetic valve are arranged at the top of the vehicle body, the injection port is used for injecting a raw material mixture into the vehicle body, the stirring mechanism is used for stirring the raw material mixture, the first electromagnetic valve is arranged in the water tank and used for controlling stirring water adding quantity, a leveling mechanism is arranged at the tail of the vehicle body and used for leveling poured cement at the same height so as to level the poured cement, a controller is arranged on the outer side wall of the vehicle body and used for controlling the pouring process, a gravity sensor is arranged at the bottom of the vehicle body and used for detecting the weight of the raw material mixture in the vehicle body, a discharge port is further arranged at the bottom of the vehicle body, and a second electromagnetic valve is arranged in the discharge port and used for controlling the pouring flow of the cement;
when the viscosity of the cement in the vehicle body is controlled, the controller is also used for setting the viscosity of the cement in the vehicle body according to the gradient P of the target area, when the raw material mixture added into the vehicle body is stirred, the controller is also used for controlling the stirring water adding amount according to the adding amount M of the raw material mixture, regulating the stirring water adding amount according to the cement viscosity Ai, and when the stirring mechanism is controlled to stir, the controller is also used for setting the stirring speed according to the regulated stirring water adding amount;
when the pouring flow of cement is controlled, the controller is further used for controlling the pouring flow Qi according to the pouring thickness C of the target area, after the pouring flow Qi is determined, the controller is further used for adjusting the pouring flow Qi according to the gradient P of the target area, after the adjustment is completed, the controller is further used for correcting the adjusted pouring flow Qi 'according to the current driving distance L, and when the distance between the scraping plate and the ground is controlled, the controller is further used for setting the distance between the scraping plate and the ground according to the corrected pouring flow Qi';
the controller obtains the gradient P of the target area when controlling the viscosity of the cement in the vehicle body, compares the gradient P with the preset gradient P0, and sets the viscosity of the cement in the vehicle body according to the comparison result,
when P is less than or equal to P0, the controller sets the viscosity of cement in the vehicle body to be A1, wherein A1 is a preset value;
when P > P0, the controller sets the viscosity of cement in the vehicle body to A2, and sets a2=a1+a1× (P-P0)/P;
the controller compares the detected adding amount M of the raw material mixture with the weight M0 of the preset raw material mixture when stirring the raw material mixture added into the vehicle body, and controls the stirring adding amount according to the comparison result, wherein,
when M is less than or equal to M0, the controller sets the stirring water adding amount to be E1, and E1 is a preset value;
when M > M0, the controller sets the stirring water addition amount to E2, and sets e2=e1+e1× (M-M0)/M;
when the controller sets the stirring water adding amount, the set cement viscosity Ai is compared with the preset cement viscosity A0, i=1, 2 is set, the stirring water adding amount Ej is adjusted according to the comparison result, j=1, 2 is set,
when Ai is less than or equal to A0, the controller does not adjust;
when Ai is greater than A0, the controller selects the adjusting coefficient g to adjust the stirring water adding amount Ej so as to increase the stirring water adding amount Ej,1 < g is less than 1.1, the adjusted stirring water adding amount is Ej ', and Ej' =Ej×g is set.
2. The BIM technique-based pouring truck device according to claim 1, wherein the controller compares the adjusted agitation water addition amount Ej' with a preset agitation water addition amount Ej0 when controlling the agitation mechanism to agitate, and sets an agitation speed according to the comparison result,
when Ej' is less than or equal to Ej0, the controller sets the stirring speed to Y1, and Y1 is a preset value;
when Ej ' > Ej0, the controller sets the stirring speed to Y2, and sets y2=y1+y1× (Ej ' -Ej 0)/Ej '.
3. The BIM technique-based casting vehicle device according to claim 1, wherein the controller obtains a casting thickness C of the target area and compares it with a preset casting thickness C0 when controlling the casting flow of cement after the completion of the stirring, and sets the casting flow according to the comparison result,
when C is less than or equal to C0, the controller sets the pouring flow as Q1, and sets Q1=Q0×C/C0, wherein Q0 is a preset standard pouring flow;
when C > C0, the controller sets the pouring flow to Q2, and sets q2=q1+q1× (C-C0)/C0.
4. The BIM technique-based casting vehicle apparatus according to claim 3, wherein the controller compares the obtained target area gradient P with a preset gradient P0 and adjusts the casting flow Qi according to the comparison result, setting i=1, 2, wherein,
when P is less than or equal to P0, the controller does not regulate;
when P > P0, the controller selects a pouring flow rate adjustment coefficient k to adjust the pouring flow rate Qi to increase the pouring flow rate Qi,1 < k < 1.1, and the adjusted pouring flow rate is Qi ', and Qi' =qi×k is set.
5. The Building Information Modeling (BIM) technology-based casting vehicle device according to claim 4, wherein the controller obtains a current traveling distance L and compares the current traveling distance L with a total traveling distance L0 when controlling the casting flow of cement, and corrects the casting flow according to the comparison result,
when L is more than 1/3 xL 0 and less than or equal to 2/3 xL 0, the controller selects a first correction coefficient z1 to correct the regulated pouring flow Q i', wherein z1 is more than 0.9 and less than 1;
when L is more than 2/3×L0 and less than or equal to L0, the controller selects a second correction coefficient z2 to correct the regulated pouring flow Qi', wherein z2 is more than 0.85 and less than 0.9;
when the mth correction coefficient zm is selected to correct the adjusted pouring flow Qi ', m=1, 2 is set, the corrected pouring flow Qi "is set, and Qi" =qi' ×zm is set.
6. The BIM technique-based casting vehicle apparatus according to claim 5, wherein the controller compares the corrected casting flow qi″ with a preset casting flow Qi0 and sets a squeegee-to-ground distance according to the comparison result when controlling the squeegee-to-ground distance, wherein,
when Qi is less than or equal to Qi0, the controller sets the distance between the scraping plate and the ground to be R1, wherein R1 is a preset value;
when Qi "> Qi0, the controller sets the squeegee to ground spacing to R2, setting r2=r1+r1× (Qi" -Qi 0)/Qi.
7. The BIM technology-based pouring vehicle device according to claim 1, wherein the stirring mechanism comprises a driving motor, a reduction gearbox, a fixed seat, a main frame body and an auxiliary frame body, wherein the driving motor is installed at the top of the vehicle body through the reduction gearbox, the driving motor is used for driving stirring, the reduction gearbox is used for reducing the rotating speed of the driving motor so as to increase the rotating torque, the fixed seat is installed under the reduction gearbox, the fixed seat is used for fixing the main frame body, one end of the main frame body penetrates through the fixed seat and is connected with an output shaft of the reduction gearbox, the auxiliary frame body is symmetrically installed at two sides of the main frame body in an F-shaped manner and distributed at equal intervals, and the auxiliary frame body is used for fully stirring a raw material mixture;
the trowelling mechanism comprises a portal frame, a hydraulic telescopic rod, a connecting frame and a scraping plate, wherein the hydraulic telescopic rod penetrates through the portal frame to be connected with one end of the connecting frame, the other end of the connecting frame is connected with the scraping plate, the connecting frame is U-shaped, the portal frame is used for limiting the connecting ends of the connecting frame and the hydraulic telescopic rod to be vertical and stable in the connecting frame, and the hydraulic telescopic rod is used for stretching and driving the connecting frame to move up and down so as to adjust the distance between the scraping plate and the ground;
the pouring vehicle device further comprises a stabilizing mechanism, wherein the stabilizing mechanism comprises a mounting frame, a sleeve, a supporting rod, a buffer spring and a guide wheel, one end of the mounting frame is connected with the sleeve, the other end of the mounting frame is installed outside the vehicle body, the buffer spring passes through the supporting rod and is arranged between the sleeve and the guide wheel, the sleeve is sleeved on the supporting rod and is used for moving up and down along with deformation of the buffer spring so as to adapt to the ground, the mounting frame is used for fixing the vehicle body and the sleeve together, and the guide wheel is used for contacting the ground and rotating along with movement of the vehicle body;
the car body is also provided with an alarm lamp, and the alarm lamp is used for sending out an alarm signal.
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| JPH04319105A (en) * | 1991-04-19 | 1992-11-10 | Niigata Eng Co Ltd | Control on sending amount mixture in paving machine |
| CN111719388A (en) * | 2020-07-06 | 2020-09-29 | 赵燕虎 | Working method of concrete pouring device with uniform smoothing effect |
| CN216329123U (en) * | 2021-01-26 | 2022-04-19 | 陈甜 | Cement agitating unit that pours after for building |
| CN216379029U (en) * | 2021-11-27 | 2022-04-26 | 济宁市腾祥路桥有限公司 | Highway is concrete device of pouring fast for engineering |
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2022
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Patent Citations (4)
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| JPH04319105A (en) * | 1991-04-19 | 1992-11-10 | Niigata Eng Co Ltd | Control on sending amount mixture in paving machine |
| CN111719388A (en) * | 2020-07-06 | 2020-09-29 | 赵燕虎 | Working method of concrete pouring device with uniform smoothing effect |
| CN216329123U (en) * | 2021-01-26 | 2022-04-19 | 陈甜 | Cement agitating unit that pours after for building |
| CN216379029U (en) * | 2021-11-27 | 2022-04-26 | 济宁市腾祥路桥有限公司 | Highway is concrete device of pouring fast for engineering |
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