Concrete feeding device for building construction

Abstract

The utility model relates to the technical field of concrete feeding devices, in particular to a concrete feeding device for building construction, which comprises a hopper and a conveying mechanism, first hollow scrapers are arranged on four inner surfaces of the hopper, two ends of each first hollow scraper are elastically connected with second hollow scrapers, and the second hollow scrapers are elastically connected with the conveying mechanism. And one ends of the eight second hollow scraping plates are elastically connected with mounting scraping plates, the eight mounting scraping plates make contact with the four inner surfaces of the hopper correspondingly, one ends of every two adjacent mounting scraping plates are fixedly connected, and every two first hollow scraping plates corresponding in position are connected with first electric cylinders correspondingly. According to the scheme, concrete adhered to the inner wall of the hopper is pushed through the first hollow scraping plate, the second hollow scraping plate and the mounting scraping plate, the concrete can be gradually stacked together, the stacking volume of the concrete is gradually increased, the concrete with the increased volume falls off from the hopper in a gravity mode, and the concrete in the hopper is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete feeding devices, in particular to a concrete feeding device for building construction. Background Art

[0002] During the construction of a building, it is necessary to transport concrete to a designated location. When the travel of concrete feeding is long, a concrete transport vehicle is needed. When the travel of concrete feeding is short, the concrete is picked up by a hopper and then transported through a conveying device. In the prior art, during the process of discharging concrete from the hopper by gravity, due to the viscosity of the concrete itself, a small part of the concrete will adhere to the inner wall of the hopper. As the concrete dries and hardens, it is necessary for the staff to vibrate the surface of the hopper by knocking, so that the concrete falls from the inner wall of the hopper, or to scrape and clean it when the concrete is in an undried state. All of these are completed by personnel, which increases the labor burden and cost and reduces the efficiency of cleaning the concrete on the inner wall of the hopper. Content of the Utility Model

[0003] The purpose of the utility model is to solve the disadvantages existing in the prior art, and to propose a concrete feeding device for building construction.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is: a concrete feeding device for building construction, including a hopper and a conveying mechanism. First hollow scrapers are provided on four inner surfaces of the hopper. Elastic connections are provided at both ends of the four first hollow scrapers with second hollow scrapers. Elastic connections are provided at one ends of the eight second hollow scrapers with mounting scrapers. The eight mounting scrapers are respectively in contact with the four inner surfaces of the hopper. A fixed connection is provided between one ends of two adjacent mounting scrapers. First electric cylinders are connected to two first hollow scrapers corresponding in position.

[0005] Preferably, a fixing block is installed inside the first hollow scraper. A plurality of first mounting rods are installed on two symmetrical surfaces of the fixing block. One ends of the plurality of first mounting rods penetrate through ends of the two second hollow scrapers and extend into their interiors. Blocks are installed at one ends of the plurality of first mounting rods. First compression springs are movably sleeved on surfaces of the plurality of first mounting rods. Two ends of the first compression spring are respectively installed on ends of the two second hollow scrapers and two symmetrical surfaces of the fixing block.

[0006] Preferably, a second mounting rod is installed on the inner surface of the second hollow scraper. A deep hole is formed at the end of the mounting scraper. One end of the second mounting rod extends into the interior of the deep hole. A second compression spring is movably sleeved on the surface of the second mounting rod. Two ends of the second compression spring are respectively installed on the end of the mounting scraper and the inner surface of the second hollow scraper.

[0007] Preferably, a first connecting rod is installed at the movable end of each of the first electric cylinders. One end of the first connecting rod is provided with a bent connecting rod, the top end of the bent connecting rod extends above the hopper, and the other end of the bent connecting rod is installed on the surface of the first hollow scraper.

[0008] Preferably, a discharge port is formed at the bottom end of the hopper. A baffle plate corresponding to the position of the discharge port is provided at the bottom of the hopper. A second connecting rod is installed on the side surface of the baffle plate. One end of the second connecting rod is provided with a second electric cylinder, and the housing of the second electric cylinder is installed outside the hopper.

[0009] Preferably, ball screw rods are installed on the two symmetrical outer side surfaces of the hopper. Both ends of the two ball screw rods are connected to brackets through bearings, and one end of each of the two ball screw rods is connected to a driving motor through a coupling.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] In this solution, two first electric cylinders and four groups of first hollow scrapers, second hollow scrapers and installation scrapers are arranged on the hopper. The two first electric cylinders drive the four groups of first hollow scrapers, second hollow scrapers and installation scrapers to move synchronously. The first hollow scraper, the second hollow scraper and the installation scraper push the concrete adhering to the inner wall of the hopper, and the concrete will gradually accumulate together, so that the volume of the accumulated concrete gradually increases. The concrete with an increased volume falls from the hopper by gravity, which is convenient for cleaning the concrete in the hopper.

[0012] In this solution, the inner side surface of the hopper is conical. As the first hollow scraper moves down along the inner wall of the hopper from top to bottom, since the horizontal lateral dimension gradually shortens, the installation scraper gradually contracts into the second hollow scraper, and the second hollow scraper gradually contracts into the first hollow scraper, which is convenient for the first hollow scraper, the second hollow scraper and the installation scraper to clean the inner side surface of the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is an axonometric view of a concrete feeding device for building construction of the utility model;

[0014] Figure 2 is a schematic connection structure diagram of the first hollow scraper, the second hollow scraper and the installation scraper of a concrete feeding device for building construction of the utility model;

[0015] Figure 3 is a schematic connection structure diagram of the hopper and the baffle plate of a concrete feeding device for building construction of the utility model;

[0016] Figure 4Schematic diagram of the connection structure between the first hollow scraper and the first electric cylinder of a concrete feeding device for building construction of the present utility model.

[0017] In the figure: drive motor 1, ball screw 2, bracket 3, hopper 4, first hollow scraper 5, bent connecting rod 6, fixed block 7, first mounting rod 8, first compression spring 9, stop block 10, second mounting rod 11, second hollow scraper 12, second compression spring 13, mounting scraper 14, baffle plate 15, second electric cylinder 16, second connecting rod 17, first connecting rod 18, first electric cylinder 19. Specific implementation mode

[0018] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0019] As Figures 1-4 shown, a concrete feeding device for building construction includes a hopper 4 and a conveying mechanism. The four inner surfaces of the hopper 4 are all provided with first hollow scrapers 5. Both ends of the four first hollow scrapers 5 are elastically connected with second hollow scrapers 12. One ends of the eight second hollow scrapers 12 are all elastically connected with mounting scrapers 14. The eight mounting scrapers 14 are respectively in contact with the four inner surfaces of the hopper 4. One ends between adjacent two mounting scrapers 14 are fixedly connected. Two first hollow scrapers 5 corresponding in position are both connected with first electric cylinders 19. The two first electric cylinders 19 are powered on to work, and the movable ends of the first electric cylinders 19 extend, so that the movable ends of the two first electric cylinders 19 synchronously push the four first hollow scrapers 5 to move downward synchronously. After the four first hollow scrapers 5 are stressed, they synchronously drive the eight second hollow scrapers 12 and the eight mounting scrapers 14 to move downward along the four inner side surfaces of the hopper 4, which is convenient for the four first hollow scrapers 5, the eight second hollow scrapers 12 and the eight mounting scrapers 14 to synchronously push the concrete adhering to the inside of the hopper 4. As the volume of the accumulated concrete gradually increases, the weight of the accumulated part of the concrete increases, so that the concrete falls from the hopper 4 by gravity. After the four first hollow scrapers 5 are stressed and synchronously drive the eight second hollow scrapers 12 and the eight mounting scrapers 14 to move to the bottom end of the hopper 4, the concrete adhering to the four inner side surfaces in the hopper 4 is cleaned.

[0020] A fixing block 7 is installed inside the first hollow scraping plate 5 through screws. A plurality of first mounting rods 8 are installed on both symmetrical surfaces of the fixing block 7 through screws. One ends of the plurality of first mounting rods 8 penetrate through the ends of the two second hollow scraping plates 12 and extend into their interiors. One ends of the plurality of first mounting rods 8 are installed with stoppers 10 through screws. The surfaces of the plurality of first mounting rods 8 are movably sleeved with first compression springs 9. The two ends of the first compression springs 9 are installed on the ends of the two second hollow scraping plates 12 and the two symmetrical surfaces of the fixing block 7 through screws respectively. The inner surface of the second hollow scraping plate 12 is installed with a second mounting rod 11 through screws. A deep hole is formed at the end of the mounting scraping plate 14. One end of the second mounting rod 11 extends into the interior of the deep hole. The surface of the second mounting rod 11 is movably sleeved with a second compression spring 13. The two ends of the second compression spring 13 are installed on the end of the mounting scraping plate 14 and the inner surface of the second hollow scraping plate 12 through screws respectively. As the first hollow scraping plate 5 slides along the inner surface of the hopper 4, the horizontal transverse dimension of the hopper 4 gradually shortens from top to bottom. The mounting scraping plate 14 will move in the second hollow scraping plate 12, and the second hollow scraping plate 12 will move into the first hollow scraping plate 5, which is convenient for self-adjustment according to the moving depth, improving the operation convenience. At the same time, both the second compression spring 13 and the first compression spring 9 are in a contracted state after being stressed. During the upward movement of the first hollow scraping plate 5, the stress state decreases at this time. The second compression spring 13 pushes the mounting scraping plate 14 out, and the first compression spring 9 pushes the second hollow scraping plate 12 out, which facilitates the adjustment of the first hollow scraping plate 5, the second hollow scraping plate 12 and the mounting scraping plate 14 according to the horizontal transverse dimension of the inner surface of the hopper 4.

[0021] The movable ends of the first electric cylinders 19 are all installed with first connecting rods 18 through screws. One end of the first connecting rod 18 is installed with a bent connecting rod 6 through screws. The top end of the bent connecting rod 6 extends above the hopper 4. The other end of the bent connecting rod 6 is installed on the surface of the first hollow scraping plate 5 through screws. The length of the bent connecting rod 6 is greater than the height of the hopper 4, which is convenient for the first hollow scraping plate 5 to move to the bottom position of the hopper 4.

[0022] The bottom end of the hopper 4 is provided with a discharge port. A baffle plate 15 corresponding to the position of the discharge port is arranged at the bottom of the hopper 4. A second connecting rod 17 is installed on the side surface of the baffle plate 15 through screws. One end of the second connecting rod 17 is installed with a second electric cylinder 16 through screws. The housing of the second electric cylinder 16 is installed outside the hopper 4 through screws. The baffle plate 15 is used to block the discharge port of the hopper 4 to prevent the concrete in the hopper 4 from falling; the movable end of the second electric cylinder 16 extends out, and the movable end of the second electric cylinder 16 drives the baffle plate 15 to move out from the bottom end of the hopper 4 through the second connecting rod 17, facilitating the concrete to fall from the discharge port of the hopper 4.

[0023] On both symmetric outer sides of the hopper 4, ball screws 2 are installed by screws. Both ends of the two ball screws 2 are connected to brackets 3 through bearings. One end of each of the two ball screws 2 is connected to a drive motor 1 through a coupling. The two drive motors 1 synchronously control the rotation of the two ball screws 2. The nuts of the two ball screws 2 drive the hopper 4 to move synchronously, which is convenient for driving the hopper 4 to move in a short distance and plays a role in concrete feeding.

[0024] In this solution, the drive motor 1, the first electric cylinder 19 and the second electric cylinder 16 are all connected to the PLC controller or the motor forward and reverse switch through wires. The PLC controller or the motor forward and reverse switch is connected to an external power supply through wires.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A concrete feeding device for building construction, comprising a hopper (4) and a conveying mechanism, characterized in that, Four inner surfaces of the hopper (4) are each provided with a first hollow scraper (5). Elastic connections are provided at both ends of the four first hollow scrapers (5) with second hollow scrapers (12). Elastic connections are provided at one end of each of the eight second hollow scrapers (12) with mounting scrapers (14). The eight mounting scrapers (14) are respectively in contact with the four inner surfaces of the hopper (4). A fixed connection is provided between one ends of two adjacent mounting scrapers (14). First electric cylinders (19) are connected to two first hollow scrapers (5) corresponding in position.

2. The concrete feeding device for building construction according to claim 1, wherein, A fixed block (7) is installed inside the first hollow scraper (5). Multiple first mounting rods (8) are installed on two symmetrical surfaces of the fixed block (7). One ends of the multiple first mounting rods (8) penetrate through ends of the two second hollow scrapers (12) and extend into their interiors. Blocks (10) are installed at one ends of the multiple first mounting rods (8). First compression springs (9) are movably sleeved on surfaces of the multiple first mounting rods (8). Two ends of the first compression spring (9) are respectively installed on ends of the two second hollow scrapers (12) and two symmetrical surfaces of the fixed block (7).

3. A concrete feeding device for building construction according to claim 1, characterized in that, A second mounting rod (11) is installed on an inner surface of the second hollow scraper (12). A deep hole is provided at an end of the mounting scraper (14). One end of the second mounting rod (11) extends into the interior of the deep hole. A second compression spring (13) is movably sleeved on the surface of the second mounting rod (11). Two ends of the second compression spring (13) are respectively installed on an end of the mounting scraper (14) and the inner surface of the second hollow scraper (12).

4. A concrete feeding device for building construction according to claim 1, characterized in that, First connecting rods (18) are installed at movable ends of the first electric cylinders (19). A bent connecting rod (6) is installed at one end of the first connecting rod (18). The top end of the bent connecting rod (6) extends above the hopper (4). The other end of the bent connecting rod (6) is installed on the surface of the first hollow scraper (5).

5. A concrete feeding device for building construction according to claim 1, characterized in that, A discharge port is provided at the bottom end of the hopper (4). A baffle plate (15) corresponding to the position of the discharge port is provided at the bottom of the hopper (4). A second connecting rod (17) is installed on a side surface of the baffle plate (15). A second electric cylinder (16) is installed at one end of the second connecting rod (17). The housing of the second electric cylinder (16) is installed outside the hopper (4).

6. The concrete feeding device for building construction according to claim 1, characterized in that, Ball screw rods (2) are installed on two symmetrical outer side surfaces of the hopper (4). Both ends of the two ball screw rods (2) are connected to a bracket (3) through bearings. One ends of the two ball screw rods (2) are connected to a driving motor (1) through couplings.

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