Anti-overflow device for concrete mixing plant

Abstract

The utility model relates to the technical field of concrete mixing plants, in particular to an anti-overflow device of a concrete mixing plant, which comprises a material gathering hopper, a sliding sleeve is sleeved on the outer wall of the lower end of the material gathering hopper, two first cylinders are symmetrically mounted on the sliding sleeve through a mounting seat, and two connecting blocks are symmetrically and fixedly connected to the outer wall of the lower end of the material gathering hopper. A discharging assembly is arranged in the material gathering hopper, the edge of the upper end of the material gathering hopper communicates with a material overflowing pipe, the upper end of the material overflowing pipe is fixedly connected to the outer wall of the upper end of the material gathering hopper, the lower end of the material overflowing pipe is fixedly connected with a telescopic pipe, and the lower end of the telescopic pipe communicates with an inclined backflow pipe; the lower end of the inclined backflow pipe is communicated with the lower end of the sliding sleeve. The phenomenon that concrete is scattered or overflows to the outside during discharging of the material gathering hopper is reduced, the anti-overflow effect of the material gathering hopper is improved, concrete overflow caused by sudden discharging is reduced, and the discharging efficiency and effect of the material gathering hopper are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing stations, in particular to an anti-overflow device for a concrete mixing station. Background Art

[0002] During the operation of a concrete mixing station, the concrete mixed by the mixer is usually gathered by a gathering hopper and then directly flows into the feeding port of a mixer truck from the discharging port of the gathering hopper.

[0003] After retrieval, a Chinese utility model patent with the publication number of CN220219116U and the name of a discharging anti-overflow device for a concrete mixing station includes a material hopper. A discharging pipe is arranged at the bottom of the material hopper, and a blocking component is arranged on the discharging pipe. The blocking component is used for blocking the lower end of the discharging pipe, and the degree of blocking the discharging pipe by the blocking component is adjustable. A lifting component is arranged on the material hopper. The flow rate of the concrete can be adjusted by the blocking component, and the blocking component is arranged outside the discharging pipe, so that the concrete will not be blocked inside the discharging pipe. The flowing speed of the concrete can be increased through a screw conveying component, thereby improving the discharging efficiency. The screw conveying component can be driven by the lifting component to reciprocate up and down, which can improve the effect of the screw conveying component in conveying the concrete and can also avoid the blockage of the concrete at the discharging pipe.

[0004] However, it is found in the use process that when discharging through the material hopper, there is a certain gap between the material hopper and the feeding port of the mixer truck. The concrete is likely to spill or overflow to the outside from this gap during the discharging process, which not only causes waste of the concrete but also pollutes the working environment of the mixing station. Secondly, when closing the discharging valve of the material hopper or suddenly discharging, due to the limited capacity of the material hopper, the concrete is easy to overflow from the upper end of the material hopper, resulting in waste of the concrete and being not conducive to the discharging use of the concrete mixing station. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides an anti-overflow device for a concrete mixing station, which solves the technical problems that when discharging through a material hopper, there is a certain gap between the material hopper and the feeding port of the mixer truck, the concrete is likely to spill or overflow to the outside from this gap during the discharging process, which not only causes waste of the concrete but also pollutes the working environment of the mixing station. Secondly, when closing the discharging valve of the material hopper or suddenly discharging, due to the limited capacity of the material hopper, the concrete is easy to overflow from the upper end of the material hopper, resulting in waste of the concrete and being not conducive to the discharging use of the concrete mixing station.

[0006] To solve the above technical problems, the present utility model provides the following technical solution: An anti-overflow device for a concrete mixing station, comprising a material gathering hopper, wherein a sliding sleeve is sleeved on the outer wall of the lower end of the material gathering hopper, and two first cylinders are symmetrically installed on the sliding sleeve through mounting seats. Two connecting blocks are fixedly connected to the outer wall of the lower end of the material gathering hopper in a symmetrical structure, and the top surface of the piston rod of the first cylinder is fixedly connected to the bottom surface of the connecting block. A material discharging assembly is arranged inside the material gathering hopper, an overflow pipe is communicated with the edge of the upper end of the material gathering hopper, the upper end of the overflow pipe is fixedly connected to the outer wall of the upper end of the material gathering hopper, a telescopic pipe is fixedly connected to the lower end of the overflow pipe, an inclined return pipe is communicated with the lower end of the telescopic pipe, and the lower end of the inclined return pipe is communicated with the lower end of the sliding sleeve. The material gathering hopper is a discharging device of the concrete mixing station.

[0007] As a preferred scheme of the anti-overflow device for the concrete mixing station of the present utility model, wherein: the material discharging assembly includes discharging blocks, two discharging blocks are provided in a symmetrical structure, the inner walls of the two discharging blocks are in frictional contact, the discharging blocks are located inside the material gathering hopper, the outer ends of the discharging blocks are fixedly connected with rotating shafts, and both ends of the rotating shafts are rotatably connected to the material gathering hopper.

[0008] Through the above technical solution, the rotating shaft rotates along the material gathering hopper, pushing the discharging block to rotate.

[0009] As a preferred scheme of the anti-overflow device for the concrete mixing station of the present utility model, wherein: a triangular blocking block is arranged at the upper end of the outer side of the discharging block, the bottom surface of the triangular blocking block is in frictional contact with the outer end of the top surface of the discharging block, and the outer wall of the triangular blocking block is fixedly connected to the inner wall of the material gathering hopper.

[0010] Through the above technical solution, the concrete at the outer end of the discharging block is blocked by the triangular blocking block, reducing the occurrence of concrete leakage.

[0011] As a preferred scheme of the anti-overflow device for the concrete mixing station of the present utility model, wherein: one end of the rotating shaft penetrates through the inner wall of the material gathering hopper and extends to the outside, and a first bevel gear is sleeved on the rotating shaft extending to the outside.

[0012] Through the above technical solution, the first bevel gear drives the rotating shaft to rotate along the material gathering hopper.

[0013] As a preferred scheme of the anti-overflow device for the concrete mixing station of the present utility model, wherein: a fixed block is fixedly connected to the outer wall of the material gathering hopper, a rotating rod is rotatably connected to the fixed block, and second bevel gears are symmetrically rotatably connected to the rotating rod, and the second bevel gears are meshed with the first bevel gear.

[0014] As a preferred scheme of the anti-overflow device for the concrete mixing station of the present utility model, wherein: a servo motor is installed on the outer wall of the material gathering hopper through a mounting seat, and the output shaft of the servo motor is coaxially connected to the rotating rod.

[0015] Through the above technical solution, the output shaft of the servo motor drives the rotating rod to rotate along the fixed block, and the rotating rod drives the second bevel gear to rotate synchronously. The rotating second bevel gear is meshed and transmitted to drive the first bevel gear to rotate.

[0016] As a preferred solution of the anti-overflow device for the concrete mixing station of the present utility model, wherein: a slot is opened at the lower end of the overflow pipe, a baffle is inserted inside the slot, the baffle is slidably connected to the overflow pipe through the slot, and a push block is fixedly connected to the baffle.

[0017] As a preferred solution of the anti-overflow device for the concrete mixing station of the present utility model, wherein: a second cylinder is installed on the outer wall of the overflow pipe through a mounting seat, and the piston rod of the second cylinder is fixedly connected to the push block.

[0018] Through the above technical solution, the piston rod of the second cylinder pushes the push block to move outward, so that the push block drives the baffle to slide outward along the overflow pipe through the slot, and the concrete temporarily stored inside the overflow pipe falls downward.

[0019] The beneficial effects of the present utility model:

[0020] 1. After the feed hopper of the external concrete vehicle moves to the lower part of the material gathering hopper, the piston rod of the first cylinder is jacked upward, and the first cylinder drives the sliding sleeve to slide downward along the material gathering hopper through the connecting block, adjusting the bottom surface of the material gathering hopper and the top surface of the feed hopper of the external concrete vehicle to a suitable unloading gap. At this time, the sliding sleeve drives the inclined return pipe to move synchronously, so that the telescopic pipe is stretched. By adjusting the position of the sliding sleeve, the phenomenon that concrete spills or overflows to the outside during the unloading of the material gathering hopper is reduced, and the anti-overflow effect of the material gathering hopper is improved.

[0021] 2. The output shaft of the servo motor drives the rotating rod to rotate along the fixed block, and the rotating rod drives the second bevel gear to rotate synchronously. The rotating second bevel gear is meshed and transmitted to drive the first bevel gear to rotate, so that the first bevel gear drives the rotating shaft to rotate along the material gathering hopper, pushing the discharging block to rotate, adjusting the two discharging blocks to a suitable inclination angle, blocking the concrete at the outer end of the discharging block through the triangular stopper, reducing the occurrence of concrete leakage, and enabling the concrete inside the material gathering hopper to fall through between the two discharging blocks for unloading. By adjusting the gap between the two discharging blocks, the unloading amount of the concrete inside the material gathering hopper is adjusted, making the control of the unloading amount of the concrete inside the material gathering hopper more accurate, reducing the concrete overflow caused by sudden discharging, making the concrete discharging more uniform, reducing the occurrence of blockage, and improving the unloading efficiency and effect of the material gathering hopper.

[0022] 3. When the feeding hopper is closed by the discharging assembly, the concrete with normal flow rate suddenly stops, causing some of the concrete accumulated inside the feeding hopper to exceed the capacity inside the feeding hopper. The increased concrete flows into the overflow pipe. The overflowing concrete is temporarily stored inside the overflow pipe through the baffle, reducing the occurrence of waste caused by the concrete overflowing outside. When the feeding hopper discharges again, the piston rod of the second cylinder pushes the push block to move outward, causing the push block to drive the baffle to slide outward along the overflow pipe through the slot, so that the concrete temporarily stored inside the overflow pipe falls downward. The overflowing concrete is conveyed into the sliding sleeve through the telescopic pipe and the inclined return pipe for discharge, facilitating the recovery of the overflowing concrete, reducing the waste of concrete, and improving the anti-overflow effect of the concrete mixing station. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 is a sectional perspective view of the sliding sleeve structure of the present invention;

[0025] Figure 3 is a schematic diagram of the discharging assembly structure of the present invention;

[0026] Figure 4 is a sectional rear view of the overflow pipe structure of the present invention.

[0027] In the figure: 1, feeding hopper; 2, sliding sleeve; 3, first cylinder; 4, connecting block; 5, discharging assembly; 501, discharging block; 502, rotating shaft; 503, triangular stop block; 504, first bevel gear; 505, fixed block; 506, rotating rod; 507, second bevel gear; 508, servo motor; 6, overflow pipe; 601, slot; 602, baffle; 603, push block; 604, second cylinder; 7, telescopic pipe; 8, inclined return pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be made with reference to the accompanying drawings of the specification.

[0029] Embodiment 1

[0030] As Figure 1 , Figure 2 and Figure 3As shown in the figure, this embodiment provides an anti-overflow device for a concrete mixing plant, which includes a material collecting hopper 1. A sliding sleeve 2 is sleeved on the outer wall of the lower end of the material collecting hopper 1. Two first cylinders 3 are symmetrically installed on the sliding sleeve 2 through mounting seats. Two connecting blocks 4 are symmetrically and fixedly connected to the outer wall of the lower end of the material collecting hopper 1. The top surface of the piston rod of the first cylinder 3 is fixedly connected to the bottom surface of the connecting block 4. A discharging assembly 5 is arranged inside the material collecting hopper 1. An overflow pipe 6 is communicated with the edge of the upper end of the material collecting hopper 1. The upper end of the overflow pipe 6 is fixedly connected to the outer wall of the upper end of the material collecting hopper 1. The lower end of the overflow pipe 6 is fixedly connected to a telescopic pipe 7. The lower end of the telescopic pipe 7 is communicated with an inclined return pipe 8. The lower end of the inclined return pipe 8 is communicated with the lower end of the sliding sleeve 2. The material collecting hopper 1 is a discharging device of the concrete mixing plant.

[0031] The discharging assembly 5 includes discharging blocks 501. There are two discharging blocks 501 which are symmetrically arranged. The inner walls of the two discharging blocks 501 are in frictional contact. The discharging blocks 501 are located inside the material collecting hopper 1. The outer ends of the discharging blocks 501 are fixedly connected with rotating shafts 502. Both ends of the rotating shafts 502 are rotatably connected to the material collecting hopper 1. The rotating shafts 502 rotate along the material collecting hopper 1 to push the discharging blocks 501 to rotate.

[0032] Triangular stoppers 503 are arranged at the upper outer sides of the discharging blocks 501. The bottom surface of the triangular stoppers 503 is in frictional contact with the outer end of the top surface of the discharging blocks 501. The outer walls of the triangular stoppers 503 are fixedly connected to the inner wall of the material collecting hopper 1. The concrete at the outer ends of the discharging blocks 501 is blocked by the triangular stoppers 503, reducing the occurrence of concrete leakage.

[0033] One end of the rotating shaft 502 penetrates through the inner wall of the material collecting hopper 1 and extends to the outside. A first bevel gear 504 is sleeved on the rotating shaft 502 extending to the outside. The first bevel gear 504 drives the rotating shaft 502 to rotate along the material collecting hopper 1.

[0034] A fixed block 505 is fixedly connected to the outer wall of the material collecting hopper 1. A rotating rod 506 is rotatably connected to the fixed block 505. Second bevel gears 507 are symmetrically and rotatably connected to the rotating rod 506. The second bevel gears 507 are meshed with the first bevel gear 504. A servo motor 508 is installed on the outer wall of the material collecting hopper 1 through a mounting seat. The output shaft of the servo motor 508 is coaxially connected to the rotating rod 506. The output shaft of the servo motor 508 drives the rotating rod 506 to rotate along the fixed block 505. The rotating rod 506 drives the second bevel gears 507 to rotate synchronously. The rotating second bevel gears 507 are meshed and transmitted to drive the first bevel gear 504 to rotate.

[0035] During use, after moving to the lower part of the material gathering hopper 1 through the feeding hopper of an external concrete vehicle, it is jacked upward by the piston rod of the first cylinder 3. The first cylinder 3 drives the sliding sleeve 2 to slide downward along the material gathering hopper 1 through the connecting block 4, adjusting the discharging gap between the bottom surface of the material gathering hopper 1 and the top surface of the feeding hopper of the external concrete vehicle to an appropriate value. At this time, the sliding sleeve 2 drives the inclined return pipe 8 to move synchronously, stretching the telescopic pipe 7. By adjusting the position of the sliding sleeve 2, the phenomenon of concrete spilling or overflowing outside during the discharging of the material gathering hopper 1 is reduced, improving the anti-overflow effect of the material gathering hopper 1;

[0036] During discharging, the output shaft of the servo motor 508 drives the rotating rod 506 to rotate along the fixed block 505. The rotating rod 506 drives the second bevel gear 507 to rotate synchronously. The rotating second bevel gear 507 is meshed and transmitted to drive the first bevel gear 504 to rotate, so that the first bevel gear 504 drives the rotating shaft 502 to rotate along the material gathering hopper 1, pushing the discharging block 501 to rotate, adjusting the two discharging blocks 501 to an appropriate inclination angle. The concrete at the outer end of the discharging block 501 is blocked by the triangular stop block 503, reducing the occurrence of concrete leakage. The concrete inside the material gathering hopper 1 falls through between the two discharging blocks 501 for discharging. By adjusting the gap between the two discharging blocks 501, the discharging amount of the concrete inside the material gathering hopper 1 is adjusted, making the control of the discharging amount of the concrete inside the material gathering hopper 1 more accurate, reducing the concrete overflow caused by sudden discharging, making the concrete discharging more uniform, reducing the occurrence of blockage, and improving the discharging efficiency and effect of the material gathering hopper 1.

[0037] Embodiment 2

[0038] As Figure 1 , Figure 2 and Figure 4 shown, on the basis of Embodiment 1, a slot 601 is opened at the lower end of the overflow pipe 6. A baffle 602 is inserted inside the slot 601. The baffle 602 is slidably connected to the overflow pipe 6 through the slot 601. A push block 603 is fixedly connected to the baffle 602. A second cylinder 604 is installed on the outer wall of the overflow pipe 6 through a mounting seat. The piston rod of the second cylinder 604 is fixedly connected to the push block 603; the piston rod of the second cylinder 604 is pushed to move outward, so that the push block 603 drives the baffle 602 to slide outward along the overflow pipe 6 through the slot 601, causing the temporarily stored concrete inside the overflow pipe 6 to fall downward.

[0039] During use, when the feeding hopper 1 is closed by the discharging assembly 5, the concrete with normal flow rate suddenly stops, causing some of the concrete accumulated inside the feeding hopper 1 to exceed the capacity inside the feeding hopper 1. The increased concrete flows into the overflow pipe 6. The overflowing concrete is temporarily stored inside the overflow pipe 6 through the baffle 602, reducing the occurrence of waste caused by concrete overflowing outside. When the feeding hopper 1 discharges materials again, the piston rod of the second cylinder 604 pushes the push block 603 to move outward, causing the push block 603 to drive the baffle 602 to slide outward along the overflow pipe 6 through the slot 601, so that the concrete temporarily stored inside the overflow pipe 6 falls downward. The overflowing concrete is conveyed to the inside of the sliding sleeve 2 through the telescopic pipe 7 and the inclined return pipe 8 for discharge, facilitating the recovery of the overflowing concrete, reducing the waste of concrete, and improving the anti-overflow effect of the concrete mixing station.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A device for preventing overflow of a concrete mixing plant, comprising a hopper (1), characterized in that: The outer wall at the lower end of the collecting hopper (1) is sleeved with a sliding sleeve (2), and two first cylinders (3) are symmetrically installed on the sliding sleeve (2) through a mounting seat. The outer wall at the lower end of the collecting hopper (1) is symmetrically fixedly connected to two connecting blocks (4), and the top surface of the piston rod of the first cylinder (3) is fixedly connected to the bottom surface of the connecting block (4). A discharge assembly (5) is provided inside the collecting hopper (1), and an overflow pipe (6) is connected to the upper edge of the collecting hopper (1). The upper end of the overflow pipe (6) is fixedly connected to the outer wall at the upper end of the collecting hopper (1), and the lower end of the overflow pipe (6) is fixedly connected to a telescopic pipe (7), and the lower end of the telescopic pipe (7) is connected to an inclined return pipe (8), and the lower end of the inclined return pipe (8) is connected to the lower end of the sliding sleeve (2).

2. The anti-overflow device for a concrete mixing station according to claim 1, characterized in that: The material discharge assembly (5) comprises a material discharge block (501), wherein two material discharge blocks (501) are symmetrically structured, and the inner walls of the two material discharge blocks (501) are in frictional contact with each other. The material discharge block (501) is located inside the material collecting hopper (1), and the outer end of the material discharge block (501) is fixedly connected to a rotating shaft (502), and both ends of the rotating shaft (502) are rotatably connected to the material collecting hopper (1).

3. The anti-overflow device for a concrete mixing station according to claim 2, characterized in that: A triangular stopper (503) is provided at the upper outer end of the discharge block (501), the bottom surface of the triangular stopper (503) is in frictional contact with the outer end of the top surface of the discharge block (501), and the outer wall of the triangular stopper (503) is fixedly connected to the inner wall of the collecting hopper (1).

4. The anti-overflow device for a concrete mixing station as claimed in claim 3, characterized in that: One end of the rotating shaft (502) passes through the inner wall of the collecting hopper (1) and extends to the outside. The rotating shaft (502) extending to the outside is sleeved with a first bevel gear (504).

5. The anti-overflow device for a concrete mixing station as claimed in claim 4, characterized in that: The outer wall of the collecting hopper (1) is fixedly connected with a fixing block (505), the fixing block (505) is rotatably connected with a rotating rod (506), the rotating rod (506) is rotatably connected with a second bevel gear (507) in a symmetrical structure, and the second bevel gear (507) is meshedly connected with the first bevel gear (504).

6. The anti-overflow device for a concrete mixing station as claimed in claim 5, characterized in that: A servo motor (508) is mounted on the outer wall of the material collecting hopper (1) via a mounting seat, and an output shaft of the servo motor (508) is coaxially connected to a rotating rod (506).

7. The anti-overflow device for a concrete mixing station according to claim 1, characterized in that: A slot (601) is provided at the lower end of the overflow pipe (6), a baffle (602) is inserted into the slot (601), the baffle (602) is slidably connected to the overflow pipe (6) via the slot (601), and a push block (603) is fixedly connected to the baffle (602).

8. The anti-overflow device for a concrete mixing station according to claim 7, characterized in that: A second cylinder (604) is mounted on the outer wall of the overflow pipe (6) via a mounting seat, and a piston rod of the second cylinder (604) is fixedly connected to the push block (603).

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