Sand screening machine for construction engineering

Abstract

This utility model provides a sand screening machine for construction engineering, relating to the technical field of sand screening machines. It includes a base plate, with columns uniformly fixedly installed on the top of the base plate. A ring is fixedly installed at the top of each column, and a sliding column is uniformly slidably connected inside the ring. An annular block is fixedly installed at the top of each sliding column, and a sand screening cylinder is fixedly installed on the inner wall of the annular block. In this utility model, when the screening screen needs to be replaced, a quick-release mechanism is activated. Pulling the pull plate causes the sliding plate to slide along the fixed column, causing the limiting insert on the inner side of the arc-shaped component to disengage from the limiting hole on the outer wall of the annular sleeve. At this time, the annular sleeve can be quickly removed from the sand screening cylinder, and a new annular sleeve with a screening screen can be replaced. Installation is done by reversing the operation. This quick-release mechanism greatly simplifies the screen replacement process, saves time and manpower, reduces equipment downtime and maintenance costs, and solves the problem of inconvenient maintenance and replacement of components in traditional sand screening machines.

Description

Technical Field

[0001] This utility model relates to the field of sand screening machine technology, and in particular to a sand screening machine for construction engineering. Background Technology

[0002] A sand screening machine is a device used for grading and screening sand and soil. It places the raw mixed sand and soil on a screen by vibration or rotation, and uses different sizes of screen holes to separate the sand and soil according to particle size.

[0003] Traditional sand screening machines currently have problems in practical use. Maintenance and replacement of components are very inconvenient. For example, when the screen mesh needs replacement due to wear after long-term use, the complex installation structure of traditional sand screening machines requires a significant amount of time and manpower for disassembly and installation, increasing equipment downtime and maintenance costs. Furthermore, traditional equipment lacks an effective mechanism to break up any agglomerates that may be present in the material, further reducing screening quality. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to propose a sand screening machine for construction engineering.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a sand screening machine for construction engineering, comprising a base plate, columns uniformly fixedly installed on the top of the base plate, a ring fixedly installed on the top of the columns, a sliding column uniformly slidably connected inside the ring, an annular block fixedly installed on the top of the sliding column, a sand screening cylinder fixedly installed on the inner wall of the annular block, a circular block fixedly installed on the bottom of the sliding column, a spring one sleeved on the outer wall of the sliding column, a spring two sleeved on the outer wall of the sliding column, a feed hopper fixedly installed on the top of the sand screening cylinder, and an mounting plate fixedly installed on the top of the annular block and the sand screening cylinder, with a vibrating motor fixedly installed inside the mounting plate. A fixing ring is fixedly installed on the outer wall of the sand screening cylinder. A quick-release mechanism is symmetrically installed on the outer wall of the fixing ring. An annular sleeve is slidably connected to the bottom outer wall of the sand screening cylinder. A screening screen is fixedly installed on the inner wall of the annular sleeve. Limiting holes are symmetrically opened on the outer walls of the sand screening cylinder and the annular sleeve. A dispersing mechanism is installed on the outer wall of the annular block. The quick-release mechanism includes a fixing column. A fixing block is fixedly installed at one end of the fixing column. A sliding plate is slidably connected to the outer wall of the fixing column. An arc-shaped component is fixedly installed on the inner side of the sliding plate. Limiting inserts are symmetrically fixedly installed on the inner wall of the arc-shaped component. A pull plate is fixedly installed on the side of the sliding plate away from the arc-shaped component. A spring is sleeved on the outer wall of the fixing column.

[0006] Preferably, the top end of the first spring is fixedly connected to the annular block, and the bottom end of the first spring is fixedly connected to the ring.

[0007] Preferably, the top end of the second spring is fixedly connected to the ring, and the bottom end of the second spring is fixedly connected to the circular block.

[0008] Preferably, the inner wall of the annular sleeve is uniformly fixed with positioning strips, and the bottom outer wall of the sand screening cylinder is uniformly provided with positioning grooves, and the positioning grooves are slidably connected to the positioning strips.

[0009] Preferably, the limiting pin and the limiting hole are slidably connected, the fixing pin and the fixing ring are fixedly connected, one end of the spring three is fixedly connected to the fixing block, and the other end of the spring three is fixedly connected to the sliding plate.

[0010] Preferably, the disintegration mechanism includes a rotating shaft and an L-plate. An electric telescopic rod is fixedly installed on the inner side of the L-plate. A connecting rod is fixedly installed at the output end of the electric telescopic rod. Gears are fixedly installed at both ends of the connecting rod. Disintegration rods are uniformly and symmetrically installed on the outer wall of the rotating shaft. A gear is fixedly installed at the top end of the rotating shaft.

[0011] Preferably, there are two sets of rotating shafts, gears, and racks, with the two sets of rotating shafts rotatably connected to the sand screening cylinder, and the two sets of gears meshing with the two sets of racks.

[0012] Preferably, the L-plate and the annular block are fixedly connected.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, when the screening screen needs to be replaced, the quick-release mechanism comes into play. Pulling the pull plate causes the sliding plate to slide along the fixed column, so that the limiting insert on the inner side of the arc-shaped part disengages from the limiting hole on the outer wall of the sand screening cylinder and the annular sleeve. At this time, the annular sleeve can be quickly removed from the sand screening cylinder and replaced with a new annular sleeve with a screening screen. The installation is done by reversing the operation. This quick-release mechanism greatly simplifies the replacement process of the screening screen, saves time and manpower, reduces equipment downtime and maintenance costs, and solves the problem of inconvenient maintenance and replacement of parts in traditional sand screening machines.

[0015] 2. In this utility model, if there are lumps in the material after it enters the screening cylinder, the dispersing mechanism starts to function. The electric telescopic rod inside the L-plate extends or shortens, and its output end drives the connecting rod to move, which in turn drives the toothed rods at both ends of the connecting rod to move. Since the gears on the two sets of rotating shafts mesh with the two sets of toothed rods, the movement of the toothed rods will drive the gears to rotate, thereby causing the rotating shaft to rotate. The dispersing rod fixed on the outer wall of the rotating shaft will rotate accordingly, dispersing the lumps of material in the screening cylinder. This effectively solves the problem of the lack of a material dispersing mechanism in traditional equipment and improves the screening quality. Attached Figure Description

[0016] Figure 1 This utility model provides an overall structural schematic diagram of a sand screening machine for construction engineering;

[0017] Figure 2 This utility model provides a partial exploded view of the structure of a sand screening machine for construction engineering;

[0018] Figure 3 This utility model provides a partial structural schematic diagram of a sand screening machine for construction engineering;

[0019] Figure 4 This utility model provides a schematic diagram of a quick-release mechanism for a sand screening machine used in construction engineering;

[0020] Figure 5 This utility model provides a schematic diagram of the dispersing mechanism of a sand screening machine for construction engineering.

[0021] Legend: 1. Quick-release mechanism; 101. Fixed column; 102. Fixed block; 103. Sliding plate; 104. Arc-shaped part; 105. Limiting insert; 106. Pull plate; 107. Spring three; 2. Dispersing mechanism; 201. Rotating shaft; 202. L-plate; 203. Electric telescopic rod; 204. Connecting rod; 205. Gear; 206. Dispersing rod; 207. Gear; 3. Base plate; 4. Column; 5. Ring; 6. Sliding column; 7. Annular block; 8. Sand screening cylinder; 9. Round block; 10. Spring one; 11. Spring two; 12. Feed hopper; 13. Mounting plate; 14. Vibrating motor; 15. Fixed ring; 16. Annular sleeve; 17. Screening screen; 18. Limiting hole; 19. Positioning groove; 20. Positioning strip. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figures 1-4As shown, this utility model provides a technical solution: a sand screening machine for construction engineering, including a base plate 3, with columns 4 uniformly fixedly installed on the top of the base plate 3, a ring 5 fixedly installed on the top of the column 4, a sliding column 6 uniformly slidably connected inside the ring 5, an annular block 7 fixedly installed on the top of the sliding column 6, a sand screening cylinder 8 fixedly installed on the inner wall of the annular block 7, a round block 9 fixedly installed on the bottom of the sliding column 6, a spring 10 sleeved on the outer wall of the sliding column 6, a spring 21 sleeved on the outer wall of the sliding column 6, and a sand screening cylinder 8 fixedly installed on the top of the sand screening cylinder 8. The top of the feeding hopper 12, the annular block 7, and the sand screening cylinder 8 are fixedly mounted with an installation plate 13. A vibrating motor 14 is fixedly mounted inside the installation plate 13. A fixing ring 15 is fixedly mounted on the outer wall of the sand screening cylinder 8. A quick-release mechanism 1 is symmetrically mounted on the outer wall of the fixing ring 15. An annular sleeve 16 is slidably connected to the bottom outer wall of the sand screening cylinder 8. A screening screen 17 is fixedly mounted on the inner wall of the annular sleeve 16. Limiting holes 18 are symmetrically opened on the outer walls of the sand screening cylinder 8 and the annular sleeve 16. A dispersing mechanism 2 is installed on the outer wall of the annular block 7. The quick-release mechanism 1 includes a fixing column 101. A fixing block 102 is fixedly installed at one end of the fixing column 101. A sliding plate 103 is slidably connected to the outer wall of the fixing column 101. An arc-shaped component 104 is fixedly installed on the inner side of the sliding plate 103. Limiting inserts 105 are symmetrically fixedly installed on the inner wall of the arc-shaped component 104. A pull plate 106 is fixedly installed on the side of the sliding plate 103 away from the arc-shaped component 104. A spring 107 is sleeved on the outer wall of the fixing column 101. The top end of the spring 101 is fixedly connected to the annular block 7, and the bottom end of the spring 101 is fixedly connected to the circular ring 5. Spring 107... The top end of spring 1 is fixedly connected to the ring 5, the bottom end of spring 21 is fixedly connected to the round block 9, the inner wall of the annular sleeve 16 is uniformly fixedly installed with positioning strips 20, the bottom outer wall of the sand screening cylinder 8 is uniformly provided with positioning grooves 19, the positioning grooves 19 and positioning strips 20 are slidably connected, the limiting insert 105 and the limiting hole 18 are slidably connected, the fixing column 101 and the fixing ring 15 are fixedly connected, one end of spring 3107 is fixedly connected to the fixing block 102, and the other end of spring 3107 is fixedly connected to the sliding plate 103.

[0025] In this embodiment, when the screening screen 17 needs to be replaced, the quick-release mechanism 1 comes into play, pulling the pull plate 106 and causing the sliding plate 103 to slide along the fixed column 101, so that the limiting insert 105 on the inner side of the arc-shaped part 104 disengages from the limiting hole 18 on the outer wall of the sand screening cylinder 8 and the annular sleeve 16. At this time, the annular sleeve 16 can be quickly removed from the sand screening cylinder 8 and replaced with a new annular sleeve 16 with the screening screen 17. The installation is done by reversing the operation. This quick-release mechanism 1 greatly simplifies the replacement process of the screening screen 17, saves time and manpower, reduces equipment downtime and maintenance costs, and solves the problem of inconvenient maintenance and replacement of traditional sand screening machine parts.

[0026] Example 2: As Figure 1 and Figure 5 As shown, the dispersing mechanism 2 includes a rotating shaft 201 and an L-plate 202. An electric telescopic rod 203 is fixedly installed on the inner side of the L-plate 202. A connecting rod 204 is fixedly installed at the output end of the electric telescopic rod 203. A rack 205 is fixedly installed at both ends of the connecting rod 204. Dispersing rods 206 are evenly and symmetrically fixedly installed on the outer wall of the rotating shaft 201. A gear 207 is fixedly installed at the top end of the rotating shaft 201. There are two sets of rotating shaft 201, gear 207 and rack 205. The two sets of rotating shaft 201 are rotatably connected to the sand screening cylinder 8. The two sets of gear 207 mesh with the two sets of rack 205. The L-plate 202 is fixedly connected to the annular block 7.

[0027] In this embodiment, after the material enters the screening cylinder 8, if there is agglomeration in the material, the dispersing mechanism 2 starts to function. The electric telescopic rod 203 inside the L plate 202 extends or shortens, and its output end drives the connecting rod 204 to move, which in turn drives the toothed rods 205 at both ends of the connecting rod 204 to move. Since the gears 207 on the two sets of rotating shafts 201 mesh with the two sets of toothed rods 205, the movement of the toothed rods 205 will drive the gears 207 to rotate, thereby causing the rotating shaft 201 to rotate. The dispersing rod 206 fixed on the outer wall of the rotating shaft 201 will rotate accordingly, dispersing the agglomerated material in the screening cylinder 8. This effectively solves the problem of the lack of material dispersing mechanism in traditional equipment and improves the screening quality.

[0028] The working principle of this embodiment is as follows: When sand screening is performed, construction sand enters the sand screening cylinder 8 through the feed hopper 12. At this time, the vibration motor 14 installed in the mounting plate 13 starts to work. The high-frequency vibration generated by the vibration motor 14 is transmitted to the annular block 7 and the sand screening cylinder 8 through the mounting plate 13. Since the sand screening cylinder 8 is slidably connected to the ring 5 through the sliding column 6, and the outer wall of the sliding column 6 is fitted with spring 10 and spring 21, the vibration generated by the vibration motor 14 causes the sand screening cylinder 8 to move up and down reciprocally in the vertical direction. Spring 10 and spring 21 play the role of buffering and assisting vibration, making the vibration of the sand screening cylinder 8 more stable and efficient, which helps to improve screening efficiency and avoid material accumulation in the sand screening cylinder 8. After the material enters the screening cylinder 8, if there are lumps in the material, the dispersing mechanism 2 starts to function. The electric telescopic rod 203 inside the L plate 202 extends or shortens, and its output end drives the connecting rod 204 to move, which in turn drives the toothed rods 205 at both ends of the connecting rod 204 to move. Since the gears 207 on the two sets of rotating shafts 201 mesh with the two sets of toothed rods 205, the movement of the toothed rods 205 will drive the gears 207 to rotate, thereby causing the rotating shaft 201 to rotate. The dispersing rod 206 fixed on the outer wall of the rotating shaft 201 will rotate accordingly, dispersing the lumps of material in the screening cylinder 8. This effectively solves the problem of the lack of a material dispersing mechanism in traditional equipment and improves the screening quality. As the sand screening cylinder 8 vibrates, the material moves towards the bottom of the cylinder under the action of gravity and vibration. An annular sleeve 16 is installed on the outer wall of the bottom of the sand screening cylinder 8, and a screening screen 17 is installed on its inner wall. The material is screened through the screening screen 17. When the screening screen 17 needs to be replaced, the quick-release mechanism 1 activates, pulling the pull plate 106 and causing the sliding plate 103 to slide along the fixed column 101. This causes the limiting insert 105 on the inner side of the arc-shaped part 104 to disengage from the limiting hole 18 on the outer wall of the annular sleeve 16. At this time, the annular sleeve 16 can be quickly removed from the sand screening cylinder 8 and replaced with a new annular sleeve 16 with a screening screen 17. Installation is done by reversing the operation. This quick-release mechanism 1 greatly simplifies the replacement process of the screening screen 17, saves time and manpower, reduces equipment downtime and maintenance costs, and solves the problem of inconvenient maintenance and replacement of parts in traditional sand screening machines. After screening, sand that meets the particle size requirements falls through the screening screen 17.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A sand screening machine for construction works, comprising a base plate (3), characterised in that: A column (4) is uniformly fixedly installed on the top of the base plate (3). A ring (5) is fixedly installed on the top of the column (4). A sliding column (6) is uniformly slidably connected inside the ring (5). An annular block (7) is fixedly installed on the top of the sliding column (6). A sand screening cylinder (8) is fixedly installed on the inner wall of the annular block (7). A round block (9) is fixedly installed on the bottom of the sliding column (6). A spring one (10) is sleeved on the outer wall of the sliding column (6). A spring two (11) is sleeved on the outer wall of the sliding column (6). A feed hopper (12) is fixedly installed on the top of the sand screening cylinder (8). A mounting plate (13) is fixedly installed on the top of the block (7) and the sand screening cylinder (8). A vibration motor (14) is fixedly installed inside the mounting plate (13). A fixing ring (15) is fixedly installed on the outer wall of the sand screening cylinder (8). A quick-release mechanism (1) is symmetrically installed on the outer wall of the fixing ring (15). An annular sleeve (16) is slidably connected to the bottom outer wall of the sand screening cylinder (8). A screening screen (17) is fixedly installed on the inner wall of the annular sleeve (16). Limiting holes (18) are symmetrically opened on the outer walls of the sand screening cylinder (8) and the annular sleeve (16). A dispersing mechanism (2) is installed on the outer wall of the annular block (7). The quick-release mechanism (1) includes a fixed post (101), a fixed block (102) is fixedly installed at one end of the fixed post (101), a sliding plate (103) is slidably connected to the outer wall of the fixed post (101), an arc-shaped component (104) is fixedly installed on the inner side of the sliding plate (103), limit pins (105) are symmetrically fixedly installed on the inner wall of the arc-shaped component (104), a pull plate (106) is fixedly installed on the side of the sliding plate (103) away from the arc-shaped component (104), and a spring three (107) is sleeved on the outer wall of the fixed post (101).

2. A sand screening machine for construction work as claimed in claim 1 wherein: The top end of the spring (10) is fixedly connected to the annular block (7), and the bottom end of the spring (10) is fixedly connected to the ring (5).

3. The sand screening machine for construction work according to claim 1, characterized in that: The top end of the second spring (11) is fixedly connected to the ring (5), and the bottom end of the second spring (11) is fixedly connected to the round block (9).

4. The sand screening machine for construction work according to claim 1, characterized in that: The inner wall of the annular sleeve (16) is uniformly fixed with positioning strips (20), and the bottom outer wall of the sand screening cylinder (8) is uniformly provided with positioning grooves (19), and the positioning grooves (19) and positioning strips (20) are slidably connected.

5. The sand screening machine for construction work according to claim 1, characterized in that: The limiting pin (105) is slidably connected to the limiting hole (18), the fixing pin (101) is fixedly connected to the fixing ring (15), one end of the spring three (107) is fixedly connected to the fixing block (102), and the other end of the spring three (107) is fixedly connected to the sliding plate (103).

6. The sand screening machine for construction work according to claim 1, characterized in that: The disintegration mechanism (2) includes a rotating shaft (201) and an L-plate (202). An electric telescopic rod (203) is fixedly installed on the inner side of the L-plate (202). A connecting rod (204) is fixedly installed at the output end of the electric telescopic rod (203). A rack (205) is fixedly installed at both ends of the connecting rod (204). Disintegration rods (206) are evenly and symmetrically fixedly installed on the outer wall of the rotating shaft (201). A gear (207) is fixedly installed at the top end of the rotating shaft (201).

7. A sand screening machine for construction work as claimed in claim 6 wherein: The number of the rotating shaft (201), gear (207) and rack (205) are all two sets. The two sets of rotating shafts (201) are rotatably connected to the sand screening cylinder (8), and the two sets of gears (207) mesh with the two sets of racks (205).

8. A sand screening machine for construction work as claimed in claim 6 wherein: The L plate (202) is fixedly connected to the annular block (7).

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