A sand making device for building construction
By designing a sand-making device with crushing, screening, and impact mechanisms, the problems of existing devices being unable to adjust sand particle size and having low screening efficiency have been solved, achieving efficient and automated sand particle size adjustment and continuous production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI CANGMAO CONSTR ENG CO LTD
- Filing Date
- 2025-07-02
- Publication Date
- 2026-06-30
AI Technical Summary
Existing construction sand making equipment cannot flexibly adjust sand particle size, and the screening process is inefficient in handling unqualified sand particles, leading to production interruptions and increased labor costs.
A sand making device including crushing, screening and impact mechanisms was designed. It can automatically adjust the crushing particle size and automatically transport unqualified materials back to the crushing unit through the screening and impact mechanisms, achieving high-efficiency production without human intervention.
It enables precise adjustment of sand particle size according to different building requirements, improves production adaptability and automation, reduces labor costs, avoids production interruptions, and enhances production continuity.
Smart Images
Figure CN224422980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, and in particular to a sand making device for building construction. Background Technology
[0002] In the construction industry, sand is an indispensable basic material, and its quality and production efficiency directly affect the quality and progress of construction projects. As the core equipment for sand production, the performance of sand-making equipment is crucial. However, existing sand-making equipment for construction faces many problems that urgently need to be addressed in practical applications.
[0003] Traditional sand making equipment can only provide a fixed crushing particle size, making it difficult to flexibly adjust to the diverse particle size requirements of different construction projects. In actual construction, different building parts, such as concrete pouring and wall plastering, have significantly different requirements for sand particle size, but existing sand making equipment cannot accurately meet these diverse needs due to the lack of an effective particle size adjustment mechanism.
[0004] Existing sand-making equipment is inefficient in handling substandard sand particles during the screening stage. When the particle size of the sand particles does not meet the requirements after screening, manual intervention is usually required to collect and re-transport these substandard materials to the crushing mechanism for further crushing. This manual operation not only increases labor costs but also easily leads to production interruptions and reduces production efficiency.
[0005] Therefore, a sand-making device for building construction is needed. Utility Model Content
[0006] The main objective of this invention is to provide a sand-making device for building construction, which can effectively solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0008] A sand-making device for building construction includes several support legs, a screening mechanism fixedly connected inside the support legs, a crushing mechanism fixedly connected to the upper end of the screening mechanism, a striking mechanism fixedly connected to the left end of the screening mechanism, and a feed cylinder fixedly connected to the upper end of the crushing mechanism.
[0009] Preferably, the crushing mechanism includes a protective box, which is fixedly connected to the upper end of the screening mechanism. Two crushing rollers are rotatably connected inside the protective box. A support plate is fixedly connected to the lower right side of the protective box. A dual-shaft motor is fixedly connected to the upper middle part of the support plate. Fixed blocks are fixedly connected to the front and rear sides of the upper end of the support plate. Rotating rods are rotatably connected inside the two fixed blocks. Gear sets are fixedly connected to the ends of the two rotating rods that are far apart from each other. Each gear set consists of two meshing bevel gears. A transmission assembly is fixedly connected to the front end of the protective box. Adjustment assemblies are provided on the right side of the middle part of the front and rear ends of the protective box. A tension assembly is provided on the upper left side of the front end of the protective box.
[0010] Preferably, the adjustment assembly includes two slide grooves, which are respectively located on the front and rear right sides of the support leg. Each slide groove has a slider slidably connected to its inner cavity. Each slider has a threaded rod threadedly connected to its lower middle side. The front ends of the two threaded rods extend through the inner wall of the slide groove on the same side to the outside and are fixedly connected to the middle of two vertical bevel gears on the same side. The two output ends of the dual-shaft motor are fixedly connected to the two rotating rods at their close ends via couplings. The front and rear shafts of the crushing roller on the right side are rotatably connected to the two sliders at their close ends.
[0011] Preferably, the tension assembly includes a second spring, which is located on the upper left side of the front end of the support leg. A second slider is slidably connected to the inner cavity of the second spring, and two grooves are fixedly connected to the right end of the second slider.
[0012] Preferably, the screening mechanism includes a discharge cylinder, which is fixedly connected to the lower end of the protective box. Two support blocks are fixedly connected to the front and rear walls of the inner cavity of the discharge cylinder. A spring is fixedly connected to the upper end of each of the support blocks. A screening plate is fixedly connected to the upper end of each of the springs. A discharge pipe is fixedly connected to the middle of the left end of the discharge cylinder. The screening plate is inclined.
[0013] Preferably, the striking mechanism includes a second support plate, a first fixed plate, and a spiral conveying pipe. The second support plate is fixedly connected to the lower left side of the discharge cylinder. A second motor is fixedly connected to the upper left side of the second support plate. The output end of the second motor is fixedly connected to a rotating shaft via a coupling. A second gear set is fixedly connected to the outer surface of the rotating shaft. The second gear set consists of two meshing bevel gears. The first fixed plate is fixedly connected to the lower middle part of the left wall of the discharge cylinder. A turntable is rotatably connected to the lower right side of the first fixed plate. A rotating plate is rotatably connected to the right side of the turntable away from its axis. Two second fixed plates are fixedly connected to the upper right side of the first fixed plate. A top rod is slidably connected to the middle of the two second fixed plates. The end of the rotating plate away from the turntable is rotatably connected to the lower end of the top rod. The spiral conveying pipe is fixedly connected to the left end of the discharge pipe.
[0014] Preferably, the axis of the spiral conveying tube extends through the lower wall of the spiral conveying tube to the outside and is fixedly connected to the middle of the horizontal bevel gear.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] 1. During use, this utility model can quickly and accurately adjust the crushing particle size through its set crushing mechanism. Whether it is the fine-grained sand required for high-strength concrete pouring or construction scenarios with relatively relaxed particle size requirements such as wall plastering, it can produce sand on demand, greatly improving the adaptability of the produced sand, effectively meeting the diverse needs of construction projects, and providing a reliable guarantee for building quality.
[0017] 2. During use, the screening and striking mechanisms of this utility model can automatically and accurately transport unqualified materials to the crushing mechanism for re-crushing without manual intervention, effectively reducing manpower input and labor costs. At the same time, it avoids production delays caused by untimely manual operation, and greatly improves the automation and continuity of sand making production. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0019] Figure 2 This is a schematic cross-sectional view of the crushing mechanism of this utility model;
[0020] Figure 3 This is a schematic cross-sectional view of the adjustment component of this utility model;
[0021] Figure 4 This is a schematic cross-sectional view of the screening mechanism of this utility model;
[0022] Figure 5 This is a cross-sectional structural diagram of the striking mechanism of this utility model;
[0023] Figure 6 This is a schematic diagram of the overall structure of this utility model from another perspective.
[0024] In the diagram: 1. Support leg; 2. Screening mechanism; 21. Discharge cylinder; 22. Support block; 23. Spring 1; 24. Screening plate; 25. Discharge pipe; 3. Striking mechanism; 31. Support plate 2; 32. Motor 2; 33. Gear set 2; 34. Rotating shaft; 35. Fixed plate 1; 36. Turntable; 37. Fixed plate 2; 38. Top rod; 39. Rotating plate; 311. Spiral conveyor pipe; 4. Crushing mechanism; 41. Protective box; 42. Crushing roller; 43. Support plate 1; 44. Dual-shaft motor 1; 45. Fixed block; 46. Gear set 1; 47. Transmission assembly; 48. Adjustment assembly; 481. Slider 1; 482. Threaded rod; 483. Slide groove; 49. Tension assembly; 491. Groove; 492. Slider 2; 493. Spring 2; 5. Feed cylinder. Detailed Implementation
[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0026] Example 1, as Figures 1 to 6 As shown, a sand making device for building construction includes several support legs 1, a screening mechanism 2 is fixedly connected inside the support legs 1, a crushing mechanism 4 is fixedly connected to the upper end of the screening mechanism 2, a striking mechanism 3 is fixedly connected to the left end of the screening mechanism 2, and a feed cylinder 5 is fixedly connected to the upper end of the crushing mechanism 4.
[0027] In the specific implementation process of this utility model, firstly, the drive component inside the crushing mechanism 4 is started to drive the internal structure of the crushing mechanism 4 to start running. Then, the internal structure of the crushing mechanism 4 is adjusted according to the required sand particle size. Then, the material is fed into the inner cavity of the crushing mechanism 4 from the feed cylinder 5 by the worker for crushing. After being crushed by the crushing mechanism 4, the material falls downward into the inner cavity of the screening mechanism 2. At the same time, the internal structure of the striking mechanism 3 is started to drive the internal structure of the screening mechanism 2 to vibrate. Under the action of the screening mechanism 2, qualified material is screened out and falls from below the screening mechanism 2. Then, unqualified material is sent into the striking mechanism 3. Under the action of the striking mechanism 3, the unqualified material is sent back upward to the inner cavity of the feed cylinder 5 for crushing again.
[0028] Example 2: In order to achieve the goal of adjusting the crushed particle size, refer to... Figure 2 and Figure 3In this scheme, the crushing mechanism 4 includes a protective box 41, which is fixedly connected to the upper end of the screening mechanism 2. Two crushing rollers 42 are rotatably connected inside the protective box 41. A support plate 43 is fixedly connected to the lower right side of the protective box 41. A dual-shaft motor 44 is fixedly connected to the middle of the upper end of the support plate 43. Fixed blocks 45 are fixedly connected to the front and rear sides of the upper end of the support plate 43. Rotating rods are rotatably connected inside the two fixed blocks 45. Gear sets 46 are fixedly connected to the ends of the two rotating rods that are far apart from each other. Both gear sets 46 are composed of two meshing bevel gears. A transmission component 47 is fixedly connected to the front end of the protective box 41. Adjustment components 48 are provided on the right side of the middle of the front and rear ends of the protective box 41. A tension component 49 is provided on the upper left side of the front end of the protective box 41.
[0029] The aforementioned transmission assembly 47 consists of four pulleys, a belt, and a motor.
[0030] First, the motor is started to drive the pulley to rotate. Then, the belt drives the two crushing rollers 42 to rotate. When it is necessary to adjust the distance between the two crushing rollers 42 to adjust the crushing particle size, the dual-shaft motor 44 is started to drive the two rotating rods to rotate. The two rotating rods drive the bevel gear 1 to rotate. Then, the bevel gear 1 on both sides drives the internal components of the adjustment component 48 to move. The internal components of the adjustment component 48 drive the crushing roller 42 on the right side to move left and right in the inner cavity of the protective box 41 to achieve the purpose of adjusting the crushing particle size.
[0031] Specifically, in order to achieve the goal of adjusting the gap of the crushing rollers 42, refer to Figure 3 In this scheme, the adjustment component 48 includes two slide grooves 483, which are respectively opened at the front end and the right side of the rear end of the support leg 1. The inner cavity of each slide groove 483 is slidably connected to a slider 481. The lower side of the middle of each slider 481 is threadedly connected to a threaded rod 482. The front ends of each threaded rod 482 extend through the inner wall of the slide groove 483 on the same side to the outside and are fixedly connected to the middle of two vertical bevel gears on the same side. The two output ends of the dual-shaft motor 44 are fixedly connected to the two rotating rods at their close ends via couplings. The front and rear shafts of the crushing roller 42 on the right side are rotatably connected to the two sliders 481 at their close ends.
[0032] In the above, the rotation of the bevel gears on both sides simultaneously drives the two threaded rods 482 to rotate, which in turn drives the two sliders 481 to move left and right in the inner cavity of the groove 483. This causes the sliders 481 to move the crushing roller 42 left and right, thereby achieving the purpose of adjusting the spacing.
[0033] Furthermore, in order to prevent the belt inside the transmission assembly 47 from loosening while adjusting the gap of the crushing rollers 42, refer to Figure 3 In this scheme, the tension component 49 includes a second spring 493, which is located on the upper left side of the front end of the support leg 1. A second slider 492 is slidably connected to the inner cavity of the second spring 493, and two grooves 491 are fixedly connected to the right end of the second slider 492.
[0034] In the above, the two sliders 481 move while driving the pulley on the right side to move. As the pulley on the right side moves, it causes the belt to tighten or contract. Then, under the action of the slider 492, it drives the pulley on the left side to move simultaneously. Under the action of the groove 491, the pushing force on the slider 492 is always maintained, thereby ensuring that the belt inside the transmission assembly 47 will not loosen.
[0035] Specifically, in order to achieve the purpose of screening the crushed material, refer to Figure 4 In this scheme, the screening mechanism 2 includes a discharge cylinder 21, which is fixedly connected to the lower end of the protective box 41. Two support blocks 22 are fixedly connected to the front and rear walls of the inner cavity of the discharge cylinder 21. Springs 23 are fixedly connected to the upper ends of several support blocks 22. Screening plate 24 is fixedly connected to the upper ends of several springs 23. A discharge pipe 25 is fixedly connected to the middle of the left end of the discharge cylinder 21. The screening plate 24 is inclined.
[0036] In the above process, the internal structure of the striking mechanism 3 is activated to strike the bottom of the screening plate 24. Then, under the action of the spring 23, the screening plate 24 vibrates. As the material falls onto the surface of the screening plate 24, it vibrates on the surface of the screening plate 24. Qualified material is discharged directly downwards through the screening plate 24, while unqualified material is conveyed upwards through the discharge pipe 25 into the internal structure of the striking mechanism 3.
[0037] Specifically, in order to achieve the purpose of striking the screening plate 24 and conveying materials, refer to Figure 5In this scheme, the striking mechanism 3 includes a second support plate 31, a first fixing plate 35, and a spiral conveying pipe 311. The second support plate 31 is fixedly connected to the lower left side of the discharge cylinder 21. The upper left side of the second support plate 31 is fixedly connected to a second motor 32. The output end of the second motor 32 is fixedly connected to a rotating shaft 34 through a coupling. The outer surface of the rotating shaft 34 is fixedly connected to a second gear set 33, which consists of two meshing bevel gears. The first fixing plate 35 is fixedly connected to the lower middle part of the left wall of the inner cavity of the discharge cylinder 21. The lower right side of the first fixing plate 35 is rotatably connected to a turntable 36. The right side of the turntable 36 away from its axis is rotatably connected to a rotating plate 39. The upper right side of the first fixing plate 35 is fixedly connected to two second fixing plates 37. The middle of the two second fixing plates 37 is slidably connected to a top rod 38. The end of the rotating plate 39 away from the turntable 36 is rotatably connected to the lower end of the top rod 38. The spiral conveying pipe 311 is fixedly connected to the left end of the discharge pipe 25.
[0038] Furthermore, the spiral conveying pipe 311 extends through the lower wall of the spiral conveying pipe 311 to the outside and is fixedly connected to the middle of the horizontal bevel gear 2.
[0039] In the above process, the starting motor 32 drives the rotating shaft 34 to rotate, which in turn drives the bevel gear 2 to rotate. The rotation of the bevel gear 2 then drives the spiral conveyor pipe 311 to rotate, causing the material entering the inner cavity of the discharge pipe 25 to slide into the inner cavity of the spiral conveyor pipe 311. Then, the spiral conveyor pipe 311 transports the unqualified material back upwards into the inner cavity of the feed cylinder 5. At the same time, the rotating shaft 34 drives the turntable 36 to rotate, which in turn drives the rotating plate 39 to rotate around the axis of the turntable 36. As the rotating plate 39 rotates, it drives the top rod 38 to move up and down in the middle of the fixed plate 37 to strike the screening plate 24, thereby achieving the purpose of making the screening plate 24 vibrate.
[0040] It should be noted that the specific installation method, circuit connection method and control method of the dual-axis motor 44 and motor 32 used in this utility model are all conventional designs, and will not be described in detail in this utility model.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A sand-making device for building construction, comprising a plurality of support legs (1), characterized in that: A screening mechanism (2) is fixedly connected inside several of the support legs (1). A crushing mechanism (4) is fixedly connected to the upper end of the screening mechanism (2). A striking mechanism (3) is fixedly connected to the left end of the screening mechanism (2). A feed cylinder (5) is fixedly connected to the upper end of the crushing mechanism (4).
2. The sand-making device for building construction according to claim 1, characterized in that: The crushing mechanism (4) includes a protective box (41), which is fixedly connected to the upper end of the screening mechanism (2). Two crushing rollers (42) are rotatably connected inside the protective box (41). A support plate (43) is fixedly connected to the lower right side of the protective box (41). A dual-shaft motor (44) is fixedly connected to the middle of the upper end of the support plate (43). Fixed blocks (45) are fixedly connected to the front and rear sides of the upper end of the support plate (43). Rotating rods are rotatably connected inside the two fixed blocks (45). Gear sets (46) are fixedly connected to the ends of the two rotating rods that are far apart from each other. The two gear sets (46) are composed of two meshing bevel gears. A transmission component (47) is fixedly connected to the front end of the protective box (41). Adjustment components (48) are opened on the right side of the middle of the front and rear ends of the protective box (41). A tension component (49) is opened on the upper left side of the front end of the protective box (41).
3. A sand-making device for building construction according to claim 2, characterized in that: The adjustment assembly (48) includes two slides (483), which are respectively opened at the front end and the rear end right side of the support leg (1). The inner cavity of each slide (483) is slidably connected to a slider (481). The lower middle part of each slider (481) is threadedly connected to a threaded rod (482). The front end of each threaded rod (482) extends through the inner wall of the slide (483) on the same side to the outside and is fixedly connected to the middle of two vertical bevel gears on the same side. The two output ends of the dual-shaft motor (44) are respectively fixedly connected to the two rotating rods at their close ends through couplings. The front end and rear end shafts of the crushing roller (42) on the right side are respectively rotatably connected to the two sliders (481) at their close ends.
4. A sand-making device for building construction according to claim 2, characterized in that: The tension assembly (49) includes a second spring (493), which is located on the upper left side of the front end of the support leg (1). A second slider (492) is slidably connected to the inner cavity of the second spring (493), and two grooves (491) are fixedly connected to the right end of the second slider (492).
5. A sand-making device for building construction according to claim 2, characterized in that: The screening mechanism (2) includes a discharge cylinder (21), which is fixedly connected to the lower end of the protective box (41). The front and rear walls of the inner cavity of the discharge cylinder (21) are fixedly connected to two support blocks (22). The upper ends of several support blocks (22) are fixedly connected to springs (23). The upper ends of several springs (23) are fixedly connected to a screening plate (24). The middle left end of the discharge cylinder (21) is fixedly connected to a discharge pipe (25). The screening plate (24) is inclined.
6. A sand-making device for building construction according to claim 5, characterized in that: The striking mechanism (3) includes a second support plate (31), a first fixing plate (35), and a spiral conveying pipe (311). The second support plate (31) is fixedly connected to the lower left side of the discharge cylinder (21). A second motor (32) is fixedly connected to the upper left side of the second support plate (31). The output end of the second motor (32) is fixedly connected to a rotating shaft (34) via a coupling. A gear set (33) is fixedly connected to the outer surface of the rotating shaft (34). The gear set (33) consists of two meshing bevel gears. The first fixing plate (35) is fixedly connected to the discharge cylinder (21). On the lower left side of the inner wall of the material cylinder (21), a turntable (36) is rotatably connected to the lower right side of the fixed plate (35). A rotating plate (39) is rotatably connected to the right side of the turntable (36) away from its axis. Two fixed plates (37) are fixedly connected to the upper right side of the fixed plate (35). A top rod (38) is slidably connected to the middle of the two fixed plates (37). The end of the rotating plate (39) away from the turntable (36) is rotatably connected to the lower end of the top rod (38). The spiral conveying pipe (311) is fixedly connected to the left end of the discharge pipe (25).
7. A sand-making device for building construction according to claim 6, characterized in that: The spiral conveying pipe (311) extends through the lower wall of the spiral conveying pipe (311) to the outside and is fixedly connected to the middle of the horizontal bevel gear.