Multifunctional material metering device for engineering cost

Abstract

A multifunctional material metering device for engineering cost comprises a box body, and supporting components which are evenly distributed are arranged on the periphery of the bottom of the box body; the top wall and the bottom wall of the box body are respectively provided with two feed ports and a discharge port; the two discharging hoppers are arranged in the inner cavity of the box body and correspond to the two feeding ports one to one, and a smashing component is arranged in one discharging hopper and used for smashing large materials in advance; the metering component is arranged in the inner cavity of the box body, and the metering component is used for temporarily storing and weighing materials; the feeding end of the metering component is in butt joint with outlets of the two discharging hoppers, and the discharging end of the metering component is provided with a first electromagnetic valve and is in butt joint with the discharging port. And the buffer component is arranged in the inner cavity of the box body and connected between the metering component and the bottom of the inner cavity of the box body, and the buffer component is used for eliminating the material impact force. The material metering device can solve the problems that when an existing material metering device for engineering cost is used for weighing materials, the material impact force on a metering cylinder is large, parts such as a weighing sensor in the metering cylinder can be damaged, gaps between material blocks are large due to the fact that part of large materials are poured into the metering cylinder, the materials contained in the metering cylinder are few when the metering cylinder is used for weighing the materials each time, and the weighing efficiency is high. And the weighing efficiency is influenced.

Description

Technical Field

[0001] The invention relates to the technical field of material measurement, in particular to a multifunctional material measurement device for engineering cost. Background Art

[0002] As is known, in the process of engineering cost estimation, some materials need to be weighed, and weighing often requires the use of a metering device.

[0003] At present, in the process of measuring materials, most of the existing material measuring devices used for engineering cost directly add materials into the inside of the measuring cylinder and measure them using weighing sensors.

[0004] When using the material measuring device for engineering cost, when weighing materials, firstly, materials are poured into the measuring cylinder in batches, and the measuring cylinder will be subjected to a large impact force from the materials, resulting in damage to components such as the weighing sensor in the measuring cylinder; secondly, some material blocks are large in size, and pouring them into the measuring cylinder will cause a large gap between the material blocks, so that the measuring cylinder can accommodate less material each time it is weighed, affecting the weighing efficiency.

[0005] In addition to the above shortcomings, the existing material metering devices used for engineering cost still have the problems of single structure and function and low practicality.

[0006] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0007] The present invention aims to solve one of the technical problems in the related art to at least a certain extent. To this end, the present invention proposes a multifunctional material metering device for engineering cost, which can not only buffer and protect the metering component to avoid damage caused by the impact force of the material and prolong the service life, but also increase the material capacity of the metering component and improve the weighing efficiency.

[0008] A multifunctional material metering device for engineering cost according to the present invention comprises:

[0009] The box body has evenly distributed support members arranged around the bottom of the box body; the top wall and the bottom wall of the box body are respectively provided with two inlets and one outlet;

[0010] Two lower hoppers are both arranged in the inner cavity of the box body and are arranged one-to-one with the two feeding ports. A crushing component is arranged inside one of the lower hoppers, and the crushing component is used to pre-crush large pieces of material;

[0011] A metering member is arranged in the inner cavity of the box body, and is used for temporarily storing and weighing the material; a feeding end of the metering member is connected to the outlets of the two lower hoppers, and a discharging end of the metering member is provided with a first solenoid valve and connected to the discharging port;

[0012] The buffer component is arranged in the inner cavity of the box body and connected between the metering component and the bottom of the inner cavity of the box body. The buffer component is used to eliminate the impact force of the material.

[0013] According to some embodiments of the present invention, a stirring member is further included. The stirring member is arranged on the bottom wall of the box body and is used to stir and mix multiple materials.

[0014] According to some embodiments of the present invention, the two lower hoppers have symmetrical structures and both include an integrally formed guide hopper and guide trough. The guide hopper is fixedly connected to the feed inlet, and the guide trough is connected to the feed end of the metering component.

[0015] According to some embodiments of the present invention, the crushing member includes two rotatable crushing cylinders arranged inside corresponding guide hoppers, the outer walls of the two crushing cylinders have multiple cutters in a circular array, and the two crushing cylinders are configured to rotate synchronously in opposite directions and the cutters of the two crushing cylinders are cross-engaged with each other.

[0016] According to some embodiments of the present invention, the metering component is configured as a metering cylinder, which includes a mounting frame, a plurality of weighing sensors, a plurality of pressure plates and a material cylinder; the bottom of the mounting frame is connected to the box body through buffer components, a plurality of weighing sensors are evenly arranged on the inner side of the top of the mounting frame, and the material cylinder is entirely vertically penetrated and arranged inside the mounting frame; a plurality of pressure plates having the same number as the weighing sensors are evenly and fixedly arranged around the upper part of the material cylinder; the pressure plates and the weighing sensors are connected to the mounting frame one by one; the feeding port of the material cylinder is connected to the material guide troughs of the two lower hoppers, and the discharging port thereof is used to install the first solenoid valve.

[0017] According to some embodiments of the present invention, the buffer member includes a plurality of buffer components evenly arranged around the bottom of the installation frame, each buffer component includes a support frame, a movable plate, a first spring, a connecting plate, a connecting frame, a telescopic sleeve and a second spring, the support frame is fixedly connected to the bottom of the inner cavity of the box body, the movable plate is horizontally slidably arranged at one end of the support frame, the upper end of the connecting frame is fixedly connected to the installation frame, the connecting frame is hinged to the movable plate through the connecting plate, the lower end of the connecting frame is vertically telescopically arranged inside the telescopic sleeve, and the telescopic sleeve is connected to the other end of the support frame.

[0018] According to some embodiments of the present invention, the support frame includes two fixed plates symmetrically fixedly connected to the bottom of the inner cavity of the box body and a support rod for connecting the two fixed plates. The movable plate is slidably sleeved on the support rod. The first spring is connected to one side of the movable plate and abuts against the first fixed plate; the telescopic sleeve is fixedly connected to the support rod on the other side of the movable plate and is close to the second fixed plate.

[0019] According to some embodiments of the present invention, the stirring component includes a stirring barrel, two U-shaped frames and a stirring frame, the two U-shaped frames are symmetrically fixedly connected to the bottom of the box body, the stirring barrel is installed on the two U-shaped frames, and the stirring frame is rotatably arranged inside the stirring barrel; the stirring barrel is provided with a feed port and a discharge port, the feed port is connected to the discharge port of the material barrel, and the discharge port is provided with a second solenoid valve.

[0020] According to some embodiments of the present invention, the support member is configured as a plurality of legs fixedly connected to the bottom wall of the box.

[0021] According to some embodiments of the present invention, transparent observation windows are provided on the front and rear side walls of the box.

[0022] According to the multifunctional material metering device for engineering cost of the present invention, on the one hand, the buffering component is used to realize the buffering protection of the metering component, which can avoid various damage phenomena caused by the large impact force of the material, and achieve the purpose of extending the service life of the metering component. On the other hand, the crushing component is used to realize the pre-crushing of bulk materials, avoiding the problem of insufficient material capacity when weighing caused by pouring bulk materials into the metering component, and achieving the purpose of greatly increasing the material capacity of the metering component and improving the weighing efficiency.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of some embodiments of the multifunctional material metering device for engineering cost of the present invention.

[0026] Figure 2 It is a schematic diagram of the three-dimensional cross-section structure of some embodiments of the multifunctional material metering device for engineering cost of the present invention.

[0027] Figure 3 It is a schematic diagram of the three-dimensional cross-section structure of some embodiments of the crushing component in the multifunctional material metering device for engineering cost of the present invention.

[0028] Figure 4 It is a schematic diagram of the three-dimensional cross-section structure of some embodiments of the metering components in the multifunctional material metering device for engineering cost of the present invention.

[0029] Figure 5 It is a schematic diagram of the three-dimensional cross-section structure of some embodiments of the buffer component in the multifunctional material metering device for engineering cost of the present invention.

[0030] Figure 6 It is a schematic diagram of the three-dimensional cross-section structure of some embodiments of the stirring component in the multifunctional material metering device for engineering cost of the present invention.

[0031] Meaning of reference numerals in the figure:

[0032] 10-box; 10-1-feeding port; 10-2-discharging port; 10-3-transparent observation window;

[0033] 20-support member; 21-leg;

[0034] 30- lower hopper; 31- guide hopper; 32- guide trough;

[0035] 40-crushing member; 41-crushing cylinder; 411-cutter; 42-driving member; 421-rotating shaft; 422-transmission gear; 423-first motor;

[0036] 50-metering member; 51-metering cylinder; 511-material cylinder; 5111-first solenoid valve; 512-installation frame; 513-weighing sensor; 514-pressing plate;

[0037] 60-buffer member; 61-buffer assembly; 611-support frame; 6111-fixed plate; 6112-support rod; 612-movable plate; 613-first spring; 614-connecting plate; 615-connecting frame; 616-telescopic sleeve; 617-second spring;

[0038] 70 - stirring member; 71 - stirring barrel; 71 - 1 - feeding port; 71 - 2 - discharging port; 711 - second solenoid valve; 72 - U-shaped frame; 73 - stirring frame; 731 - stirring blade; 732 - rotating rod; 733 - second motor. DETAILED DESCRIPTION

[0039] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0040] The material measuring device for engineering cost in the related art includes a measuring cylinder with a weighing sensor, which not only has the problem of single structure and function and low practicality. In addition, when weighing materials, the existing material measuring device for engineering cost has the problem that the measuring cylinder is subjected to a large impact force from the material, which may damage the weighing sensor and other parts in the measuring cylinder, and some large pieces of material are poured into the measuring cylinder, resulting in a large gap between the material blocks, so that the measuring cylinder can accommodate less material each time it is weighed, affecting the weighing efficiency.

[0041] In view of this, the embodiments of the present invention application aim to provide a multifunctional material metering device for engineering cost. Firstly, by setting a buffer component, a buffering protection effect on the metering component is achieved, thereby avoiding the problem that when the existing material metering device for engineering cost is pouring materials into the metering cylinder in batches, the metering cylinder is subjected to a large impact force from the materials, which may cause damage to components such as the weighing sensor in the metering cylinder, thereby extending the service life of the metering component.

[0042] Secondly, by setting up a crushing component, large pieces of material can be pre-crushed, avoiding the problem of large pieces of material being poured into the metering component, which would result in less material being accommodated each time the material is weighed due to the large gaps between the material blocks. This greatly increases the material capacity of the metering component and improves the weighing efficiency.

[0043] Thirdly, by providing a stirring component, a mixing and stirring function in addition to a weighing function is realized, thereby improving the functionality of the metering device and enhancing the practicability of the device.

[0044] In summary, the above problems are solved.

[0045] According to the following Figure 1-Figure 6 The multifunctional material metering device for engineering cost of the present invention is described in detail.

[0046] Please refer to Figure 1-2 , a multifunctional material metering device for engineering cost provided by an embodiment of the present invention comprises:

[0047] The box body 10 has support members 20 evenly distributed around the bottom of the box body 10; the top wall and the bottom wall of the box body 10 are respectively provided with two inlets 10-1 and one outlet 10-2;

[0048] Two lower hoppers 30 are both disposed in the inner cavity of the box body 10 and arranged one-to-one with the two feed inlets 10-1. A crushing member 40 is disposed inside one of the lower hoppers 30, and the crushing member 40 is used to pre-crush bulk materials.

[0049] The metering member 50 is arranged in the inner cavity of the box body 10, and is used for temporarily storing and weighing the material; the feeding end of the metering member 50 is connected to the outlets of the two lower hoppers 30, and the discharging end of the metering member 50 is provided with a first solenoid valve 5111 and connected to the discharging port 10-2;

[0050] The buffer member 60 is disposed in the inner cavity of the box body 10 and connected between the metering member 50 and the bottom of the inner cavity of the box body 10 . The buffer member 60 is used to eliminate the impact force of the material.

[0051] In a specific implementation, the two feed inlets 10 - 1 are symmetrically arranged on the bottom wall of the box body 10 , and each lower hopper 30 is installed at the corresponding feed inlet 10 - 1 through a connecting groove structure on the box body 10 .

[0052] In the embodiment of the present invention, reference is also made to Figure 1 and Figure 2 The supporting member 20 is configured as a plurality of legs 21 fixedly connected to the bottom wall of the box body 10. More specifically, a leg 21 with a foot is respectively provided at the four corners of the bottom of the square box body 10.

[0053] In the embodiment of the present invention, reference is also made to Figure 1 and Figure 2 Transparent observation windows 10-3 are provided on the front and rear side walls of the box body 10. Further, the transparent observation window 10-3 can be set as a glass observation window for observing the material feeding and weighing conditions when the metering device is working, so as to understand and grasp the internal conditions of the device.

[0054] The multifunctional material metering device for engineering cost according to the embodiment of the present invention may further include a stirring member 70 . The stirring member 70 is disposed on the bottom wall of the box body 10 . The stirring member 70 is used to stir and mix a variety of materials.

[0055] According to some embodiments of the present invention, the two lower hoppers 30 have symmetrical structures and both include an integrally formed guide hopper 31 and a guide trough 32 . The guide hopper 31 is fixedly connected to the feed port 10 - 1 , and the guide trough 32 is connected to the feed end of the metering member 50 .

[0056] Please refer to Figure 3 The crushing component 40 of the embodiment of the present invention includes two crushing cylinders 41 rotatably arranged inside the corresponding guide hoppers 31, and the outer walls of the two crushing cylinders 41 are provided with a plurality of cutters 411 in a circular array. The two crushing cylinders 41 are configured to rotate synchronously in opposite directions and the cutters 411 of the two are cross-engaged with each other.

[0057] In a specific implementation, the crushing barrel 41 uses a driving member 42 as a power source for rotation inside the guide hopper 31; more specifically, the driving member 42 includes two rotating shafts 421, two transmission gears 422 and a first motor 423, the first motor 423 is installed on the outer wall of the guide hopper 31, the two rotating shafts 421 are used to be respectively installed at the axis of the two crushing barrels 41, and the two transmission gears 422 are used for meshing transmission and are respectively fixed at the ends of the two rotating shafts 421.

[0058] Exemplarily, the two crushing cylinders 41 are defined as an active crushing cylinder 41 and a driven crushing cylinder 41, and the active crushing cylinder 41 is concentrically fixed to the outside of the active rotating shaft 421, and the driven crushing cylinder 41 is concentrically fixed to the outside of the driven rotating shaft 421, and both ends of the active rotating shaft 421 and the driven rotating shaft 421 are rotatably mounted on the guide hopper 31 through bearings, one end of the active rotating shaft 421 extends to the outside of the guide hopper 31 and is fixed with a first transmission gear 422, the other end of the active rotating shaft 421 extends to the outside of the guide hopper 31 and is connected to the driving end of the first motor 423, one end of the driven rotating shaft 421 extends to the outside of the guide hopper 31 and is fixed with a second transmission gear 422, and the second transmission gear 422 is meshed with the first transmission gear 422.

[0059] When in use, the first motor 423 is turned on and drives the active rotating shaft 421 to rotate in a first direction. Under the transmission action of the first transmission gear 422 and the second transmission gear 422, the driven rotating shaft 421 rotates in a second direction opposite to the first direction, and then the two crushing barrels 41 fixed to the active rotating shaft 421 and the driven rotating shaft 421 respectively rotate synchronously in opposite directions with the corresponding cutters 411, thereby achieving the crushing of large pieces of material.

[0060] Please refer to Figure 4 The metering member 50 of the embodiment of the present invention is configured as a metering cylinder 51, which includes a mounting frame 512, a plurality of weighing sensors 513, a plurality of pressure plates 514 and a material cylinder 511; the bottom of the mounting frame 512 is connected to the box body 10 through the buffer member 60, and the plurality of weighing sensors 513 are evenly arranged on the inner side of the top of the mounting frame 512. The material cylinder 511 is integrally arranged inside the mounting frame 512 from top to bottom, and a plurality of pressure plates 514 having the same number as the weighing sensors 513 are evenly fixed around the upper part of the material cylinder 511. The pressure plates 514 and the weighing sensors 513 are connected to the mounting frame 512 one by one. The feeding port of the material cylinder 511 is connected to the material guide grooves 32 of the two lower hoppers 30, and the discharging port thereof is used to install the first solenoid valve 5111.

[0061] In a specific implementation, the mounting frame 512 is fixedly mounted on four connecting frames 615 , the four weighing sensors 513 are respectively in four grooves at four end face corners of the mounting frame 512 , and the four pressing plates 514 are mounted on the four weighing sensors 513 in a one-to-one correspondence.

[0062] Please refer to Figure 4 and Figure 5The buffer member 60 of the embodiment of the present invention includes a plurality of buffer components 61 evenly arranged around the bottom of the mounting frame 512, each buffer component 61 includes a support frame 611, a movable plate 612, a first spring 613, a connecting plate 614, a connecting frame 615, a telescopic sleeve 616 and a second spring 617, the support frame 611 is fixedly connected to the bottom of the inner cavity of the box body 10, the movable plate 612 is horizontally slidably arranged at one end of the support frame 611, the upper end of the connecting frame 615 is fixedly connected to the mounting frame 512, the connecting frame 615 is hinged to the movable plate 612 through the connecting plate 614, the lower end of the connecting frame 615 is vertically telescopically arranged inside the telescopic sleeve 616, and the telescopic sleeve 616 is connected to the other end of the support frame 611.

[0063] When in use, after receiving the impact force of the mounting frame 512, the four connecting frames 615 transmit the force to the second spring 617 and the first spring 613, thereby achieving buffer protection for the metering cylinder 51 and greatly reducing the impact force on components such as the weighing sensor 513.

[0064] See also Figure 4-5 The support frame 611 includes two fixed plates 6111 symmetrically fixedly connected to the bottom of the inner cavity of the box body 10 and a support rod 6112 for connecting the two fixed plates 6111. The movable plate 612 is slidably sleeved on the support rod 6112. The first spring 613 is connected to one side of the movable plate 612 and abuts against the first fixed plate 6111. The telescopic sleeve 616 is fixedly connected to the support rod 6112 on the other side of the movable plate 612 and is close to the second fixed plate 6111.

[0065] Exemplarily, both ends of the connecting plate 614 are hinged with the moving plate 612 and the connecting frame 615 through a fixing pin; the connecting frame 615 has a rod-shaped lower end, which is used to be inserted into the telescopic sleeve 616 to realize vertical buffering movement up and down as the second spring 617 is extended and retracted; the moving plate 612 performs horizontal buffering movement on the support rod 6112 as the first spring 613 is extended and retracted; the buffering movement in two directions acts on the connecting frame 615 together, which plays a role in synergistically eliminating the external force impact on the installation frame 512, and completes the protection of the metering member 50. In this way, through the combination of the second spring 617 and the first spring 613 in the buffer member 60, the overall buffering and vibration reduction capabilities can be greatly improved, and the protection of the components in the metering cylinder 51 can be strengthened.

[0066] Please refer to Figure 6The stirring member 70 of the embodiment of the present invention includes a stirring barrel 71, two U-shaped frames 72 and a stirring frame 73. The two U-shaped frames 72 are symmetrically fixedly connected to the bottom of the box body 10, the stirring barrel 71 is installed on the two U-shaped frames 72, and the stirring frame 73 is rotatably arranged inside the stirring barrel 71; the stirring barrel 71 is provided with a feed port 71-1 and a discharge port 71-2, the feed port 71-1 is connected to the discharge port of the material barrel 511, and the discharge port 71-2 is provided with a second solenoid valve 711.

[0067] In specific implementation, the stirring frame 73 may include stirring blades 731, a rotating rod 732 and a second motor 733. The second motor 733 is fixedly installed on the stirring barrel 71, the rotating rod 732 is installed on the driving end of the second motor 733, and a plurality of stirring blades 731 are installed on the outer wall of the rotating rod 732; the plurality of stirring blades 731 are distributed in a circular array along the rotating rod 732, which can make various materials stirred more evenly and have a better stirring effect.

[0068] During use, the metering cylinder 51 is used to accurately weigh materials such as cement, sand, gravel, etc. After various weighings, they enter the mixing barrel 71 through the feed port 71-1 in turn; the second motor 733 is started to rotate the rotating rod 732, and the rotating rod 732 carries a number of stirring blades 731 to stir the various materials in the mixing barrel 71, so that the material metering device of the embodiment of the present invention integrates weighing, measuring, crushing and stirring for materials, improves the functionality of the metering device, and also enhances the practicality of the device.

[0069] In an embodiment of the present invention, the setting of the first solenoid valve 5111 and the second solenoid valve 711 can be controlled by a control panel installed on the front wall of the box body 10 to realize automatic unloading of weighed materials and discharging of stirred mixed materials, thereby improving the automation level of the metering device.

[0070] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0071] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0072] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications and equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A multifunctional material metering device for engineering cost, characterized in that: include: A box body, wherein evenly distributed support members are arranged around the bottom of the box body; the top wall and the bottom wall of the box body are respectively provided with two inlets and one outlet; Two lower hoppers are both arranged in the inner cavity of the box body and are arranged one-to-one with the two feeding ports, and a crushing component is arranged inside one of the lower hoppers, and the crushing component is used to pre-crush large pieces of material; A metering member is arranged in the inner cavity of the box body, and is used for temporarily storing and weighing the material; a feeding end of the metering member is connected to the outlets of the two lower hoppers, and a discharging end of the metering member is provided with a first solenoid valve and connected to the discharging port; The buffer component is arranged in the inner cavity of the box body and connected between the metering component and the bottom of the inner cavity of the box body. The buffer component is used to eliminate the impact force of the material.

2. A multifunctional material metering device for engineering cost according to claim 1, characterized in that: It also includes a stirring component, which is arranged on the bottom wall of the box body and is used for stirring and mixing multiple materials.

3. A multifunctional material metering device for engineering cost according to claim 2, characterized in that: The two lower hoppers have symmetrical structures and both include an integrally formed guide hopper and a guide trough. The guide hopper is fixedly connected to the feed inlet, and the guide trough is connected to the feed end of the metering member.

4. A multifunctional material metering device for engineering cost according to claim 3, characterized in that: The pulverizing member comprises two rotatable pulverizing cylinders disposed inside corresponding guide hoppers, the outer walls of the two pulverizing cylinders are provided with a plurality of cutters in a circular array, the two pulverizing cylinders are configured to rotate synchronously in opposite directions and the cutters of the two cylinders are cross-engaged with each other.

5. A multifunctional material metering device for engineering cost according to claim 3 or 4, characterized in that: The metering component is configured as a metering cylinder, which includes a mounting frame, a plurality of weighing sensors, a plurality of pressure plates and a material cylinder; the bottom of the mounting frame is connected to the box body through the buffer components, and the plurality of weighing sensors are evenly arranged on the inner side of the top of the mounting frame. The material cylinder is arranged inside the mounting frame as a whole from top to bottom, and a plurality of pressure plates with the same number as the weighing sensors are evenly fixed around the upper part of the material cylinder. The pressure plates and the weighing sensors are connected to the mounting frame one by one, and the feeding port of the material cylinder is connected to the material guide grooves of the two lower hoppers, and the discharging port is used to install the first solenoid valve.

6. A multifunctional material metering device for engineering cost according to claim 5, characterized in that: The buffer member includes a plurality of buffer components evenly arranged around the bottom of the installation frame, each buffer component includes a support frame, a movable plate, a first spring, a connecting plate, a connecting frame, a telescopic sleeve and a second spring, the support frame is fixedly connected to the bottom of the inner cavity of the box body, the movable plate is horizontally slidably arranged at one end of the support frame, the upper end of the connecting frame is fixedly connected to the installation frame, the connecting frame is hinged to the movable plate through the connecting plate, the lower end of the connecting frame is vertically telescopically arranged inside the telescopic sleeve, and the telescopic sleeve is connected to the other end of the support frame.

7. A multifunctional material metering device for engineering cost according to claim 6, characterized in that: The support frame includes two fixed plates symmetrically fixedly connected to the bottom of the inner cavity of the box body and a support rod for connecting the two fixed plates. The movable plate is slidably sleeved on the support rod. The first spring is connected to one side of the movable plate and abuts against the first fixed plate. The telescopic sleeve is fixedly connected to the support rod on the other side of the movable plate and is close to the second fixed plate.

8. The multifunctional material metering device for engineering cost according to claim 7 is characterized in that: The stirring component includes a stirring barrel, two U-shaped frames and a stirring frame, the two U-shaped frames are symmetrically fixedly connected to the bottom of the box body, the stirring barrel is installed on the two U-shaped frames, and the stirring frame is rotatably arranged inside the stirring barrel; the stirring barrel is provided with a feed port and a discharge port, the feed port is connected to the discharge port of the material barrel, and the discharge port is provided with a second solenoid valve.

9. A multifunctional material metering device for engineering cost according to claim 1, 2, 3 or 4, characterized in that: The supporting member is configured as a plurality of legs fixedly connected to the bottom wall of the box body.

10. A multifunctional material metering device for engineering cost according to claim 1, 2, 3 or 4, characterized in that: Transparent observation windows are arranged on the front and rear side walls of the box.

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