Discharging splash-proof device of concrete tank truck

Abstract

The utility model discloses an unloading splash-proof device for a concrete tank truck, which belongs to the technical field of concrete tank trucks, aims to solve the problems of material waste, environmental pollution, equipment damage and the like caused by splashing of concrete grout during unloading of the concrete tank truck, and comprises a main bracket mounted at the rear part of the tank truck, and a blanking hopper, an unloading hopper and a receiving hopper are arranged on the main bracket; two sets of protective covers which are symmetrical left and right and hinged to the rear sides are detachably installed on the discharging hopper and the receiving hopper, arc-shaped limiting strips and arc-shaped limiting grooves are matched for limiting, a semi-closed space is formed through stable connection of buckle plates, butt joint lugs and limiting pieces, and meanwhile the pitching angle of the discharging hopper can be changed through an adjusting mechanism arranged on the lower portion of the main support. The design of a notch in the top of the protective cover avoids movement interference during adjustment, and the device is simple in structure, convenient to mount and dismount and good in splash-proof effect, can effectively reduce concrete splashing, improves the discharging efficiency, prolongs the service life of equipment, and has good universality and practicability.

Description

Technical Field

[0001] This utility model relates to the field of concrete mixer truck technology, and in particular to a concrete mixer truck unloading splash prevention device. Background Technology

[0002] In the construction industry, concrete mixer trucks are crucial equipment for transporting and unloading concrete. During unloading, due to the fluidity of concrete and the mechanical movement of the truck, concrete is prone to splashing or overflowing. This not only wastes concrete materials but also pollutes the construction site environment, increasing cleanup costs and safety hazards. Furthermore, splashed concrete may adhere to the truck body, tires, and surrounding equipment, causing corrosion and damage, and affecting the equipment's lifespan and performance.

[0003] Currently, while some devices exist on the market to prevent concrete from splashing during unloading from concrete mixer trucks, most are complex in structure, cumbersome to install and disassemble, and not convenient for flexible use on different types of mixer trucks. Some devices have poor splash prevention effects and cannot effectively block concrete from splashing. Others may even affect the normal unloading speed of concrete, reducing construction efficiency. Therefore, there is an urgent need for a concrete mixer truck unloading splash prevention device that is simple in structure, easy to install, has good splash prevention effects, and does not affect unloading efficiency.

[0004] Therefore, this application provides a concrete mixer truck unloading splash prevention device to meet the requirements. Utility Model Content

[0005] The purpose of this application is to provide a concrete mixer truck unloading splash prevention device, which uses a simple and easy-to-disassemble protective cover to semi-enclose the unloading process of the concrete mixer truck to prevent concrete from splashing or overflowing.

[0006] To achieve the above objectives, this application provides the following technical solution: a concrete mixer truck unloading splash prevention device, including a main support, the main support being installed at the rear of the concrete mixer truck, a hopper being provided at the upper part of the main support, a discharge cylinder being provided at the bottom of the hopper, an unloading hopper being provided at the lower part of the main support, a receiving hopper being provided at one end of the unloading hopper, and the receiving hopper being located below the discharge cylinder.

[0007] The unloading hopper and the receiving hopper are detachably equipped with protective covers. There are two sets of protective covers that are symmetrical from left to right. The rear sides of the two sets of protective covers are hinged together. The outer wall of the receiving hopper is provided with an arc-shaped limiting strip, and the inner wall of the protective cover is provided with an arc-shaped limiting groove. The arc-shaped limiting strip and the arc-shaped limiting groove cooperate to limit the receiving hopper and the protective cover in the vertical direction.

[0008] The protective cover has an extension cover on its front side, and a buckle plate is provided on the outer side of the extension cover. The buckle plate has a mating hole.

[0009] The unloading hopper is symmetrically provided with docking ears on its left and right outer walls. Each docking ear is provided with a limiting hole. The docking ear is adapted to the docking hole. After the docking ear is inserted into the docking hole, it can limit the position of the protective cover.

[0010] The extension cover is fitted with a limiting component, and each end of the limiting component is provided with a limiting block. The limiting block limits the buckle plate from the outside. The bottom of the limiting block is provided with a limiting post that cooperates with the limiting hole, which can limit the opening and closing of the protective cover and prevent the protective cover from opening outward.

[0011] Preferably, the lower part of the main support is provided with a horizontal support, and a reversing shaft is vertically rotatably connected to the horizontal support. The reversing shaft is coaxially arranged with the discharge cylinder. The top of the reversing shaft is provided with a bent part, and the end of the bent part is hinged to the bottom of the receiving hopper. An adjusting sleeve is hinged to the bottom of the reversing shaft. A support rod is provided inside the adjusting sleeve. The extension and retraction length of the support rod in the adjusting sleeve is adjustable. The end of the support rod is hinged to the front of the bottom of the discharge hopper, so that the pitch angle of the discharge hopper can be adjusted.

[0012] Preferably, the top of the protective cover is provided with a shell, and the shell has a notch. The notch is matched and corresponds to the size of the discharge cylinder. The notch allows the discharge cylinder to move relative to the protective cover when it is tilted, which can avoid interference when the discharge hopper is tilted.

[0013] Preferably, the other end of the adjusting sleeve is rotatably connected to a handle, and one end of the handle located inside the adjusting sleeve is connected to a screw. The end of the support rod located inside the adjusting sleeve is provided with a threaded hole, and the threaded hole is threadedly connected to the screw, so as to adjust the extension length of the support rod, thereby changing the pitch angle of the unloading hopper.

[0014] Preferably, the top edge of the rear side of the receiving hopper is provided with the arc-shaped limiting strip, and the bottom rear side of the protective cover is provided with the arc-shaped limiting groove, which facilitates the installation and positioning of the protective cover and plays a role in limiting the vertical direction.

[0015] Preferably, there are two sets of docking ears on both the left and right sides of the unloading hopper, and a positioning block is provided at the bottom of the limiting block. The positioning block is adapted to the spacing between the two sets of docking ears on the same side. The bottom of the limiting post and the positioning block are both chamfered so that the limiting post on the limiting block can dock with the limiting hole.

[0016] Preferably, the unloading hopper, the protective cover, and the limiting member are all equipped with handles to improve the convenience of loading and unloading the protective cover.

[0017] In summary, the technical effects and advantages of this utility model are as follows:

[0018] 1. This utility model utilizes a combination design of two sets of symmetrical, rear-hinged protective covers with receiving and unloading hoppers. Vertical positioning is achieved through the cooperation of arc-shaped limiting strips and arc-shaped limiting grooves, and further secured by fasteners, connecting ears, and limiting components, forming a semi-enclosed space that effectively prevents concrete from splashing during unloading. This not only reduces concrete waste but also prevents splashed concrete from polluting the construction site environment, lowering cleanup costs. Simultaneously, it reduces corrosion and damage to the concrete on the truck body, tires, and surrounding equipment, extending the equipment's service life.

[0019] 2. The protective cover in this utility model adopts a detachable structure. During installation, simply lower the arc-shaped limiting groove along the arc-shaped limiting strip to engage, and then connect the buckle plate and the docking ear, and fasten the limiting component to complete the installation. During disassembly, remove the limiting component, flip the protective cover to disengage the arc-shaped limiting groove from the arc-shaped limiting strip, and the entire cover can be removed. The bottom of the limiting post and the positioning block are chamfered to facilitate quick and accurate installation of the limiting component. Compared with the complex structure and cumbersome installation and disassembly of devices on the market, this design is more convenient to use flexibly on different models of tank trucks, significantly improving the convenience and versatility of the device.

[0020] 3. The notch design on the top cover of the protective cover in this utility model avoids interference with the discharge cylinder when the angle of the discharge hopper is adjusted, ensuring the smooth progress of the discharge process, effectively guaranteeing the discharge efficiency when the discharge hopper adjusts its pitch angle, and facilitating the normal discharge speed of concrete slurry. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the right-side structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the unloading hopper structure of this utility model;

[0025] Figure 4This is a schematic diagram of the protective cover structure of this utility model;

[0026] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0027] In the diagram: 1. Main support; 2. Unloading hopper; 3. Protective cover; 4. Limiting component; 10. Feeding hopper; 11. Horizontal support; 12. Directional shaft; 13. Adjusting sleeve; 14. Support rod; 15. Rotary handle; 20. Receiving hopper; 21. Arc-shaped limiting strip; 22. Docking lug; 30. Cover; 31. Arc-shaped limiting groove; 32. Buckle plate; 33. Docking hole; 40. Limiting block; 41. Limiting post; 42. Positioning block. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example: Reference Figure 1-5 The concrete mixer truck unloading splash prevention device shown includes a main support 1, which is installed at the rear of the concrete mixer truck. The upper part of the main support 1 is provided with a discharge hopper 10, and the bottom of the discharge hopper 10 is provided with a discharge cylinder. The lower part of the main support 1 is provided with a discharge hopper 2, and one end of the discharge hopper 2 is provided with a receiving hopper 20, which is located below the discharge cylinder.

[0030] Two sets of symmetrical protective covers 3 are detachably installed on the unloading hopper 2 and the receiving hopper 20. The rear sides of the two sets of protective covers 3 are hinged. The outer wall of the receiving hopper 20 is provided with an arc-shaped limiting strip 21, and the inner wall of the protective cover 3 is provided with an arc-shaped limiting groove 31. The arc-shaped limiting strip 21 and the arc-shaped limiting groove 31 cooperate to limit the receiving hopper 20 and the protective cover 3 in the vertical direction.

[0031] The front of the protective cover 3 is provided with an extension cover, and the outer side of the extension cover is provided with a buckle plate 32, and the buckle plate 32 is provided with a docking hole 33.

[0032] The left and right outer walls of the unloading hopper 2 are symmetrically provided with docking ears 22, and the docking ears 22 are provided with limiting holes. The docking ears 22 can be inserted into the docking holes 33.

[0033] The extension cover is fastened with a limiting component 4. Both ends of the limiting component 4 are provided with limiting blocks 40. The limiting blocks 40 limit the buckle plate 32 from the outside. The bottom of the limiting blocks 40 is provided with a limiting post 41 that cooperates with the limiting hole.

[0034] As one implementation method in this embodiment, to achieve the pitch adjustment function of the unloading hopper 2, such as... Figure 1 , Figure 2 As shown, the lower part of the main support 1 is provided with a horizontal support 11, and a reversing shaft 12 is vertically rotatably connected to the horizontal support 11. The reversing shaft 12 is coaxially arranged with the discharge cylinder. The top of the reversing shaft 12 is provided with a bent part, and the end of the bent part is hinged to the bottom of the receiving hopper 20. The bottom of the reversing shaft 12 is hinged with an adjusting sleeve 13. The adjusting sleeve 13 is provided with a support rod 14. The extension and retraction length of the support rod 14 in the adjusting sleeve 13 is adjustable. The end of the support rod 14 is hinged to the front of the bottom of the discharge hopper 2.

[0035] As one implementation method in this embodiment, to improve the practicality of the unloading hopper 2, such as... Figure 1 , Figure 4 As shown, the top of the protective cover 3 is provided with a cover 30, and the cover 30 is provided with a notch, which allows the feed cylinder to move relative to the protective cover 3 when it is tilted and flipped.

[0036] As one implementation method in this embodiment, to improve the convenience of adjusting the support rod 14, such as Figure 1 , Figure 2 As shown, the other end of the adjusting sleeve 13 is rotatably connected to a handle 15. One end of the handle 15 located inside the adjusting sleeve 13 is connected to a screw. One end of the support rod 14 located inside the adjusting sleeve 13 is provided with a threaded hole, which is threadedly connected to the screw.

[0037] As one implementation method in this embodiment, to facilitate loading and unloading of the receiving hopper 20 and the protective cover 3, such as Figure 1 , Figure 3 , Figure 4 As shown, the top edge of the rear side of the receiving hopper 20 is provided with an arc-shaped limiting strip 21, and the bottom of the rear side of the protective cover 3 is provided with an arc-shaped limiting groove 31.

[0038] As one implementation method in this embodiment, to facilitate the positioning and installation of the limiting component 4, such as Figure 1 , Figure 3 , Figure 5 As shown, there are two sets of docking ears 22 on both the left and right sides of the unloading hopper 2. The bottom of the limiting block 40 is provided with a positioning block 42. The positioning block 42 can be inserted into the gap between the two sets of docking ears 22 on the same side. The bottom of the limiting post 41 and the positioning block 42 are both provided with chamfers.

[0039] As one implementation method in this embodiment, to facilitate the installation and removal of the protective cover 3, such as Figure 1 , Figure 4 , Figure 5 As shown, handles are provided on the unloading hopper 2, the protective cover 3, and the limiting component 4.

[0040] The working principle of this practical device is as follows: When the concrete mixer truck unloading splash prevention device is in operation, the main support 1 is installed at the rear of the concrete mixer truck, serving as the supporting foundation for the entire device. Components such as the discharge hopper 10 and the unloading hopper 2 are all installed on the main support 1. Concrete slurry flows out of the mixer truck into the discharge hopper 10, falls through the discharge cylinder to the receiving hopper 20, and then flows out along the unloading hopper 2 to complete the unloading process.

[0041] In terms of splash protection, two sets of symmetrical protective covers 3 hinged at the rear are positioned vertically by the cooperation of the arc-shaped limiting strip 21 on the outer wall of the receiving hopper 20 and the arc-shaped limiting groove 31 on the inner wall of the protective cover 3. During installation, the two sets of hinged protective covers 3 are opened, and then the arc-shaped limiting groove 31 is lowered along the arc-shaped limiting strip 21 to make the two engage. The extension cover on the front side of the protective cover 3 is inserted into the docking ears 22 on both sides of the outer wall of the unloading hopper 2 through the docking hole 33 of the buckle plate 32, so that the limiting hole on the docking ear 22 is located on the outside of the buckle plate 32. Then the limiting member 4 is fastened on the extension cover. The limiting blocks 40 at both ends of the limiting member 4 limit the buckle plate 32 from the outside. The limiting post 41 at the bottom of the limiting block 40 is inserted into the limiting hole of the docking ear 22, so as to realize the stable connection between the protective cover 3, the unloading hopper 2, and the receiving hopper 20, forming a closed space, effectively blocking the splashing of concrete during unloading. The positioning block 42 at the bottom of the limiting block 40 can facilitate the docking of the limiting post 41 with the limiting hole.

[0042] Regarding the adjustment of the unloading angle, a reversing shaft 12 rotatably connected to the horizontal support 11 at the lower part of the main support 1 is coaxially arranged with the unloading cylinder. The bent part at the top of the reversing shaft 12 is hinged to the bottom of the receiving hopper 20, and the bottom of the reversing shaft 12 is hinged to the adjusting sleeve 13. Rotating the handle 15 on the adjusting sleeve 13 drives the internal screw to rotate. Since the support rod 14 is threadedly connected to the screw, the rotation of the screw causes the support rod 14 to extend and retract within the adjusting sleeve 13, thereby changing the extension length of the support rod 14 in the adjusting sleeve 13. This causes the receiving hopper 20, unloading hopper 2, and other components to change the unloading angle together to adapt to different unloading requirements. At the same time, the cover 30 at the top of the protective cover 3 is provided with a notch that matches the size of the unloading cylinder. When the protective cover 3 tilts and flips with the unloading hopper 2 to adjust the angle, the cover 30 will not collide with or interfere with the unloading cylinder, ensuring a smooth unloading process. After unloading, the limiting component 4 can be removed from the extension cover to release the limiting of the buckle plate 32. Then, the extension cover and the protective cover 3 can be flipped outward along the arc-shaped limiting strip 21 to disengage the arc-shaped limiting groove 31 from the arc-shaped limiting strip 21 and release the limiting. The protective cover 3 can then be removed as a whole, which facilitates the cleaning, maintenance and transportation of components such as the unloading hopper 2 and the protective cover 3.

[0043] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0044] Components not described in detail in this article are existing technologies.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A concrete mixer truck unloading splash prevention device, comprising a main support (1), the main support (1) being installed at the rear of the concrete mixer truck, a discharge hopper (10) being provided at the upper part of the main support (1), a discharge cylinder being provided at the bottom of the discharge hopper (10), a discharge hopper (2) being provided at the lower part of the main support (1), a receiving hopper (20) being provided at one end of the discharge hopper (2), the receiving hopper (20) being located below the discharge cylinder, characterized in that: The unloading hopper (2) and the receiving hopper (20) are detachably equipped with protective covers (3). There are two sets of protective covers (3) that are symmetrical from left to right. The two sets of protective covers (3) are hinged to each other at the rear. The outer wall of the receiving hopper (20) is provided with an arc-shaped limiting strip (21), and the inner wall of the protective cover (3) is provided with an arc-shaped limiting groove (31). The arc-shaped limiting strip (21) and the arc-shaped limiting groove (31) cooperate to limit the receiving hopper (20) and the protective cover (3) in the vertical direction. The protective cover (3) has an extension cover on its front side, and a buckle plate (32) is provided on the outer side of the extension cover. The buckle plate (32) has a docking hole (33). The unloading hopper (2) has symmetrically arranged docking ears (22) on its left and right outer walls. The docking ears (22) are provided with limiting holes, and the docking ears (22) are adapted to the docking holes (33). The extension cover is fitted with a limiting component (4), and each end of the limiting component (4) is provided with a limiting block (40). The limiting block (40) limits the buckle plate (32) from the outside. The bottom of the limiting block (40) is provided with a limiting post (41) that cooperates with the limiting hole.

2. The anti-splash device for unloading concrete mixer trucks according to claim 1, characterized in that: The lower part of the main support (1) is provided with a horizontal support (11), and a reversing shaft (12) is vertically rotatably connected to the horizontal support (11). The reversing shaft (12) is coaxially arranged with the discharge cylinder. The top of the reversing shaft (12) is provided with a bent part. The end of the bent part is hinged to the bottom of the receiving hopper (20). The bottom of the reversing shaft (12) is hinged with an adjusting sleeve (13). The adjusting sleeve (13) is provided with a support rod (14). The extension length of the support rod (14) in the adjusting sleeve (13) is adjustable. The end of the support rod (14) is hinged to the front of the bottom of the discharge hopper (2).

3. The concrete mixer truck unloading splash prevention device according to claim 2, characterized in that: The top of the protective cover (3) is provided with a cover (30), and the cover (30) is provided with a notch. The notch is matched with the size of the feed cylinder and the position is corresponding. The notch allows the feed cylinder to move relative to the protective cover (3) when it is tilted and flipped.

4. The anti-splash device for unloading concrete mixer trucks according to claim 2, characterized in that: The other end of the adjusting sleeve (13) is rotatably connected to a handle (15). One end of the handle (15) located inside the adjusting sleeve (13) is connected to a screw. One end of the support rod (14) located inside the adjusting sleeve (13) is provided with a threaded hole, and the threaded hole is threadedly connected to the screw.

5. A concrete mixer truck unloading splash prevention device according to claim 1, characterized in that: The top edge of the rear side of the receiving hopper (20) is provided with the arc-shaped limiting strip (21), and the bottom of the rear side of the protective cover (3) is provided with the arc-shaped limiting groove (31).

6. The anti-splash device for unloading concrete mixer trucks according to claim 1, characterized in that: The unloading hopper (2) has two sets of docking ears (22) on both the left and right sides. The bottom of the limiting block (40) is provided with a positioning block (42). The positioning block (42) is adapted to the spacing between the two sets of docking ears (22) on the same side. The bottom of the limiting post (41) and the positioning block (42) are both provided with chamfers.

7. A concrete mixer truck unloading splash prevention device according to claim 1, characterized in that: The unloading hopper (2), the protective cover (3), and the limiting member (4) are all equipped with handles.

Images