Transportation device for cement stabilized gravel
By designing a cement-stabilized gravel transport device with lifting components and a scraping mechanism, the problem of sand and gravel residue during the unloading process was solved, automated cleaning was achieved, and unloading efficiency was improved.
Patent Information
- Application Number
- CN202422938060.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In existing technologies, after cement-stabilized gravel is unloaded, some gravel often remains at the bottom and corners of the truck bed, requiring manual cleaning, which results in low unloading efficiency.
A conveying device for cement-stabilized sand and gravel was designed, which includes a lifting component and a sand scraping mechanism. The device tilts the box body by a hydraulic cylinder and uses a scraper to clean up residual sand and gravel. The scraper fits tightly against the inner wall of the box to achieve automated sand unloading.
This improved sand unloading efficiency, reduced the need for manual cleaning, and ensured the efficient operation of the sand unloading process.
Smart Images

Figure CN223508161U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement-stabilized gravel technology, specifically to a transport device for cement-stabilized gravel. Background Technology
[0002] Cement-stabilized gravel is a commonly used road base material. Gravel, as the main aggregate, is typically composed of sand and gravel of varying sizes, generally ranging from 0.075 mm to 75 mm. The specific proportions and size distribution vary depending on project requirements and local material resources. Larger-sized gravel provides structural support, while smaller-sized sand fills the voids in the gravel, resulting in good gradation of the aggregate for ideal density and stability. Cement is the key component that acts as a binder. Cement reacts with water to form hydration products on the surface of the gravel particles, binding them together and improving the overall strength and stability of the material. Commonly used cement types include ordinary Portland cement, and the amount of cement used typically accounts for 3% to 8% of the total mass of the mixture. The specific dosage needs to be determined based on factors such as engineering design requirements, the properties of the gravel, and construction conditions. After reasonable proportioning, mixing, paving, and compaction, cement-stabilized gravel can form a base structure with high strength. Its compressive strength is generally between 2MPa and 7MPa (it will vary depending on different engineering requirements and maintenance conditions). It can effectively withstand vehicle loads transmitted from the road surface and provide solid support for the road surface. Because the hydration products formed after the hydration reaction of cement and water have a certain resistance to water erosion, cement-stabilized gravel can still maintain good stability in humid environments or environments affected by groundwater, and is not prone to softening or deformation due to water intrusion.
[0003] The existing technical solution has the following drawbacks: After the cement-stabilized sand and gravel is unloaded, due to the stickiness of the sand and gravel and the friction with the truck bed, some sand and gravel often remain at the bottom and corners of the truck bed. This requires manual loading and shoveling out the remaining sand and gravel with tools, which makes the unloading process very inconvenient and greatly reduces the unloading efficiency. Utility Model Content
[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a transport device for cement-stabilized gravel, which has the advantage of facilitating sand unloading. It solves the problem that after the cement-stabilized gravel is unloaded, due to the stickiness of the sand and the friction with the truck bed, some sand and gravel often remain at the bottom and corners of the truck bed. This requires manual loading and shoveling out the remaining sand and gravel, which makes the sand unloading process very inconvenient and greatly reduces the sand unloading efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a transport device for cement-stabilized gravel, comprising a frame, a mounting seat fixedly connected to the left side of the top of the frame, a box body provided on the top of the frame, a rotating seat fixedly connected to the left side of the bottom of the box body, the outer side of the mounting seat and the inner side of the rotating seat being rotatably connected by a pin, a lifting assembly provided inside the frame, and a sand scraping mechanism provided on the top of the frame.
[0006] As a preferred embodiment of this utility model, the lifting assembly includes a first reinforcing seat, the bottom of which is fixedly connected to the interior of the frame. A hydraulic cylinder is rotatably connected to the right side of the first reinforcing seat, and a connecting piece is fixedly connected to the output end of the hydraulic cylinder. A second reinforcing seat is rotatably connected to the right side of the connecting piece via a pin, and the top of the second reinforcing seat is fixedly connected to the bottom of the housing.
[0007] In a preferred embodiment of this utility model, the scraping mechanism includes a mounting plate, the left side of which is fixedly connected to the right side of the housing, a drive motor fixedly connected to the top of the mounting plate, and two mounting brackets fixedly connected to the top of the housing. A screw is rotatably connected inside each mounting bracket. The right side of one screw is fixedly connected to the output end of the drive motor. A drive wheel is fixedly sleeved on the surface of the screw, and a belt is rotatably sleeved on the surface of the drive wheel. A driven sleeve is fixedly sleeved on the surface of the other screw, and the front side of the belt is rotatably connected to the surface of the driven sleeve. A drive block is threadedly connected to the surface of the screw, and a scraper is fixedly connected to the bottom of the drive block.
[0008] In a preferred embodiment of this invention, the left side of the scraper is flush with the surface of the housing, and the scraper is located at the top of the frame.
[0009] As a preferred embodiment of this invention, rubber pads are fixedly connected to both the front and rear sides of the scraper, and the rubber pads are located at the top of the hydraulic cylinder.
[0010] As a preferred embodiment of this utility model, the front and rear sides of the scraper are both threaded with bolts, and the outer side of the bolts is threadedly connected to the inside of the drive block.
[0011] As a preferred embodiment of this invention, the mounting bracket has a sliding groove inside, and the sliding groove is located at the bottom of the hydraulic cylinder.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model uses a lifting component to lift the container for dumping cement-stabilized gravel. A scraping mechanism removes any remaining cement-stabilized gravel inside the container, solving the problem that after unloading, some gravel often remains at the bottom and corners of the container due to its stickiness and friction with the container. This requires manual shoveling of the remaining gravel, making the unloading process inconvenient and significantly reducing efficiency. This invention offers the advantage of facilitating easy unloading.
[0014] 2. This utility model, by setting up a lifting component and activating a hydraulic cylinder, causes the output end of the hydraulic cylinder to exert force with the help of the connecting parts, pushing the reinforcing seat two upwards slowly. This causes the box body to gradually tilt upwards with the connection between the mounting seat and the rotating seat as the rotation center. During this process, as the hydraulic cylinder continues to slowly extend, it itself performs corresponding tilting movements with the reinforcing seat one as the support center. This enables the dumping of cement-stabilized gravel loaded inside the box body, improving the dumping efficiency of cement-stabilized gravel. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a rear view of the housing of this utility model;
[0017] Figure 3 This is a half-sectional view of the frame of this utility model;
[0018] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle;
[0019] Figure 5 This is a perspective view of the scraper of this utility model.
[0020] In the diagram: 1. Frame; 2. Mounting seat; 3. Box body; 4. Rotating seat; 5. Lifting assembly; 51. Reinforcing seat one; 52. Hydraulic cylinder; 53. Connecting piece; 54. Reinforcing seat two; 6. Scraping mechanism; 61. Mounting plate; 62. Drive motor; 63. Mounting bracket; 64. Screw; 65. Drive wheel; 66. Belt; 67. Driven sleeve; 68. Drive block; 69. Scraper; 7. Rubber pad; 8. Bolt; 9. Sliding groove. Detailed Implementation
[0021] 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.
[0022] like Figures 1 to 5 As shown, the present invention provides a conveying device for cement-stabilized gravel, including a frame 1, a mounting seat 2 fixedly connected to the left side of the top of the frame 1, a box 3 provided on the top of the frame 1, a rotating seat 4 fixedly connected to the left side of the bottom of the box 3, the outer side of the mounting seat 2 and the inner side of the rotating seat 4 being rotatably connected by a pin, a lifting assembly 5 provided inside the frame 1, and a sand scraping mechanism 6 provided on the top of the frame 1.
[0023] refer to Figure 3 The lifting assembly 5 includes a first reinforcing seat 51, the bottom of which is fixedly connected to the interior of the frame 1. A hydraulic cylinder 52 is rotatably connected to the right side of the first reinforcing seat 51. A connector 53 is fixedly connected to the output end of the hydraulic cylinder 52. A second reinforcing seat 54 is rotatably connected to the right side of the connector 53 via a pin. The top of the second reinforcing seat 54 is fixedly connected to the bottom of the housing 3.
[0024] As a technical optimization of this utility model, by setting up the lifting component 5 and activating the hydraulic cylinder 52, the output end of the hydraulic cylinder 52 will exert force with the help of the connecting piece 53 to push the reinforcing seat 2 54 to slowly move upward, thereby causing the box body 3 to gradually tilt upward with the connection between the mounting seat 2 and the rotating seat 4 as the rotation center. During this process, as the hydraulic cylinder 52 continues to slowly extend, it itself will perform corresponding tilting movements with the reinforcing seat 1 51 as the support center, thereby realizing the dumping operation of the cement-stabilized gravel loaded inside the box body 3 and improving the dumping efficiency of the cement-stabilized gravel.
[0025] refer to Figure 5 The scraping mechanism 6 includes a mounting plate 61, the left side of which is fixedly connected to the right side of the housing 3. A drive motor 62 is fixedly connected to the top of the mounting plate 61. A mounting bracket 63 is fixedly connected to the top of the housing 3. There are two mounting brackets 63. A screw 64 is rotatably connected inside the mounting bracket 63. The right side of one screw 64 is fixedly connected to the output end of the drive motor 62. A drive wheel 65 is fixedly sleeved on the surface of the screw 64. A belt 66 is rotatably sleeved on the surface of the drive wheel 65. A driven sleeve 67 is fixedly sleeved on the surface of the other screw 64. The front side of the belt 66 is rotatably connected to the surface of the driven sleeve 67. A drive block 68 is threadedly connected to the surface of the screw 64. A scraper 69 is fixedly connected to the bottom of the drive block 68.
[0026] As a technical optimization of this utility model, by setting up a scraping mechanism 6, when some cement-stabilized gravel remains inside the box 3, the drive motor 62 is started. The output end of the drive motor 62 then drives one of the screws 64 to rotate. The screw 64 connected to it drives the drive wheel 65 fixedly sleeved on its surface to rotate synchronously. The rotation of the drive wheel 65 drives the belt 66 tightly sleeved on it to rotate. The rotation of the belt 66 further drives the driven sleeve 67 to rotate. The rotation of the driven sleeve 67 then drives the other screw 64 to rotate synchronously. Under the coordinated rotation of the two screws 64, the drive block 68 threaded on its surface carries the scraper 69 and slowly moves towards the position of the box door. When the scraper 69 moves towards the position of the box door, it closely adheres to the bottom and corners of the inner wall of the box 3 to perform a detailed scraping operation. Through this scraping process, the cement-stabilized gravel remaining in the box 3 can be completely scraped away, improving the scraping effect of cement-stabilized gravel.
[0027] refer to Figure 5 The scraper 69 is flush with the surface of the box 3 on the left side and is located on the top of the frame 1.
[0028] As a technical optimization of this utility model, by setting the left side of the scraper 69 flush with the surface of the box 3, the scraper 69 can better fit the surface of the box 3 to perform the scraping operation, ensuring effective cleaning of residual sand and gravel on the walls and bottom of the box 3, and improving the scraping effect of the scraper 69.
[0029] refer to Figure 5 Rubber pads 7 are fixedly connected to both the front and rear sides of the scraper 69, and the rubber pads 7 are located on the top of the hydraulic cylinder 52.
[0030] As a technical optimization of this utility model, by setting the rubber pad 7, effective protection can be provided for the front and rear sides of the scraper 69. In this way, during the loading of cement-stabilized gravel, the cement-stabilized gravel can be effectively prevented from seeping into both sides of the scraper 69, thereby ensuring the normal use of the scraper 69 and maintaining its good scraping performance.
[0031] refer to Figure 5 Both the front and rear sides of the scraper 69 are threaded with bolts 8, and the outer side of the bolts 8 is threaded with the inside of the drive block 68.
[0032] As a technical optimization of this utility model, by setting bolts 8, after the scraper 69 has been used for a long time, the scraper 69 can be easily replaced by simply loosening the corresponding bolts 8. In this way, the stability of the scraper 69 during long-term use is ensured, and it can be replaced very conveniently when it is worn or malfunctions, thus ensuring the normal operation of the entire equipment.
[0033] refer to Figure 4 The mounting bracket 63 has a sliding groove 9 inside, which is located at the bottom of the hydraulic cylinder 52.
[0034] As a technical optimization of this utility model, by setting the sliding groove 9, the drive block 68 can be ensured to obtain more stable support during movement, thereby making its movement state more stable and reliable. In this way, the drive block 68 can move smoothly and steadily along the sliding groove 9 throughout the entire operation, effectively ensuring the normal operation of the relevant equipment and improving the overall work efficiency.
[0035] The working principle and usage process of this utility model are as follows: When unloading cement-stabilized gravel, the door of the box 3 must first be opened. Then, the hydraulic cylinder 52 is started. At this time, the output end of the hydraulic cylinder 52 will exert force with the help of the connecting piece 53 to push the reinforcing seat 2 54 upward slowly. This causes the box 3 to gradually tilt upward with the connection between the mounting seat 2 and the rotating seat 4 as the center of rotation. During this process, as the hydraulic cylinder 52 continues to slowly extend, it itself will perform corresponding tilting movements with the reinforcing seat 1 51 as the support center. This realizes the dumping operation of the cement-stabilized gravel loaded inside the box 3. After the dumping process is completed, some cement-stabilized gravel will still remain in the box 3. At this time, the drive motor 62 is started. The output end of the drive motor 62 will then drive one of the screws 64 to start rotating. When the screw 64 is moved, the drive wheel 65 fixedly sleeved on its surface will rotate synchronously. The rotation of the drive wheel 65 will drive the belt 66 tightly sleeved on it to rotate. The rotation of the belt 66 will further drive the driven sleeve (67) to rotate. The rotation of the driven sleeve (67) will then drive another screw 64 to rotate synchronously. Under the coordinated rotation of the two screws 64, the drive block 68 threaded on its surface will carry the scraper 69 to slowly move towards the position of the box door. When the scraper 69 moves towards the position of the box door, it will closely adhere to the bottom of the inner wall of the box 3 and various corners to perform a detailed scraping operation. Through this scraping process, the cement-stabilized gravel remaining in the box 3 can be completely scraped away, ensuring the cleanliness of the inside of the box 3 for subsequent use.
[0036] In summary, this cement-stabilized gravel transport device, through the coordinated use of the frame 1, mounting base 2, box body 3, rotating seat 4, lifting component 5, and scraping mechanism 6, solves the problem that after the cement-stabilized gravel is unloaded, some gravel often remains at the bottom and corners of the truck bed due to the stickiness of the gravel and the friction with the truck bed. This requires manual loading and shoveling out the remaining gravel, which makes the unloading process very inconvenient and greatly reduces the unloading efficiency.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A transport device for cement-stabilized gravel, comprising a frame (1), characterized in that: A mounting base (2) is fixedly connected to the left side of the top of the frame (1). A housing (3) is provided on the top of the frame (1). A rotating seat (4) is fixedly connected to the left side of the bottom of the housing (3). The outer side of the mounting base (2) and the inner side of the rotating seat (4) are rotatably connected by a pin. A lifting assembly (5) is provided inside the frame (1). A sand-scraping mechanism (6) is provided on the top of the frame (1). The sand-scraping mechanism (6) includes a mounting plate (61). The left side of the mounting plate (61) is fixedly connected to the right side of the housing (3). A drive motor (62) is fixedly connected to the top of the mounting plate (61). A mounting bracket (62) is fixedly connected to the top of the housing (3). The mounting bracket (63) consists of two units. Each mounting bracket (63) is internally connected to a screw (64). The right side of one screw (64) is fixedly connected to the output end of a drive motor (62). A drive wheel (65) is fixedly sleeved on the surface of the screw (64). A belt (66) is rotatably sleeved on the surface of the drive wheel (65). A driven sleeve (67) is fixedly sleeved on the surface of the other screw (64). The front side of the belt (66) is rotatably connected to the surface of the driven sleeve (67). A drive block (68) is threadedly connected to the surface of the screw (64). A scraper (69) is fixedly connected to the bottom of the drive block (68).
2. The conveying device for cement-stabilized gravel as described in claim 1, characterized in that: The lifting assembly (5) includes a first reinforcing seat (51), the bottom of which is fixedly connected to the interior of the frame (1). A hydraulic cylinder (52) is rotatably connected to the right side of the first reinforcing seat (51). A connector (53) is fixedly connected to the output end of the hydraulic cylinder (52). A second reinforcing seat (54) is rotatably connected to the right side of the connector (53) via a pin. The top of the second reinforcing seat (54) is fixedly connected to the bottom of the housing (3).
3. The conveying device for cement-stabilized gravel as described in claim 1, characterized in that: The scraper (69) is flush with the surface of the box (3) on the left side, and the scraper (69) is located on the top of the frame (1).
4. The conveying device for cement-stabilized gravel as described in claim 1, characterized in that: Rubber pads (7) are fixedly connected to both the front and rear sides of the scraper (69), and the rubber pads (7) are located on the top of the hydraulic cylinder (52).
5. A conveying device for cement-stabilized gravel as described in claim 1, characterized in that: The front and rear sides of the scraper (69) are threaded with bolts (8), and the outer side of the bolts (8) is threaded with the inner side of the drive block (68).
6. The conveying device for cement-stabilized gravel as described in claim 1, characterized in that: The mounting bracket (63) has a sliding groove (9) inside, which is located at the bottom of the hydraulic cylinder (52).