Gravel screening device for constructional engineering

Through the coordination of scraping column and extrusion plate, the problem of low screening efficiency of sand and gravel with high humidity is solved, and efficient separation of sand and gravel with high humidity is achieved.

CN223184939UActive Publication Date: 2025-08-05HUBEI YANGHE CONSTRUCTION ENGINEERING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422237938.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-08-05
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

When existing sand and gravel screening devices for construction projects screen sand and gravel with excessive humidity, the screening efficiency is extremely low. Sand and gravel with high humidity are easily adhered to each other, resulting in the inability to quickly separate.

Method used

The scraper column structure is adopted, and the combination of the scraper and the extrusion plate and the spring reset mechanism are used to achieve detailed separation of sand and gravel with high humidity.

Benefits of technology

It effectively improves the screening efficiency of sand and gravel with high humidity, and avoids the problem of low screening efficiency caused by adhesion of sand and gravel with excessive humidity.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223184939U_ABST
    Figure CN223184939U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of screening devices, and discloses a gravel screening device for constructional engineering, which comprises a base, two sliding plates are symmetrically and fixedly connected in the base, the same outer frame is slidably connected between the two sliding plates, and two supporting plates are symmetrically and fixedly connected in one side, close to the sliding plates, of the base. Adjusting mechanisms used for adjusting the scraping plate are arranged in the two supporting plates, two baffles are fixedly connected to the interior of the side, close to the supporting plates, of the base, a plurality of sliding columns are slidably connected to one sides of the two baffles, a plurality of scraping columns are fixedly connected to the bottoms of the sliding columns, and adjusting mechanisms used for adjusting the scraping columns are arranged on the surfaces of the sides, close to the scraping plate, of the sliding columns. Through the arrangement of the scraping column, gravel with high humidity can be successfully separated, and when the extrusion disc does not extrude the top plate and the top plate is reset, the scraping column can more finely separate the gravel, so that the phenomenon that the screening efficiency of the gravel with high humidity is low is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a sand and gravel screening device for construction engineering. Background Art

[0002] The sand and gravel screening device for construction projects is a device specifically used for grading and screening sand and gravel materials. In construction, sand and gravel are important basic materials, and their quality directly affects the safety and durability of the project. The sand and gravel screening device generally separates sand and gravel of different particle sizes through vibration, rotation, or airflow. Its main function is to remove impurities, fine particles, and unqualified materials from the sand and gravel, thereby obtaining standard construction sand and stone. In actual application, the sand and gravel screening device not only improves the utilization rate of sand and gravel, but also saves labor costs and time. The sand and gravel screening device for construction projects plays an important role in the modern construction industry. It not only improves the quality of materials, but also provides strong support for the smooth progress of construction projects.

[0003] Some existing sand and gravel screening devices used in construction projects can screen sand and gravel with different humidity when in use. However, when encountering sand and gravel with excessive humidity, the screening efficiency will be extremely low. This is because the sand and gravel with excessive humidity will stick together tightly, so simple vibration cannot separate them in the first time. Therefore, this problem needs to be solved. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a sand and gravel screening device for construction engineering.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The cam is provided with a plurality of sliding plates, each of which is connected to the bottom surface of the base and a plurality of scraping plates are connected to the bottom surface of the base, and the plurality of scraping plates are connected to the bottom surface of the base and a plurality of scraping plates are connected to the bottom surface of the base.

[0007] As a further solution of the present invention, the moving mechanism includes a first motor, the first motor is fixedly connected to the inside of the base, the output shaft of the first motor is fixedly connected to an adjusting disk, the surface of the adjusting disk close to the adjusting groove is fixedly connected to an adjusting column, the adjusting column is set off the center of the circle, and the adjusting column is slidably connected to the inside of the adjusting groove. The screen can be moved by setting the adjusting column.

[0008] As a further solution of the present invention, the adjustment mechanism includes a second motor, the second motor is fixedly connected to one side of the base, the output shaft of the second motor is fixedly connected to a worm, the support plate is internally rotatably connected to a lead screw, the scraper is sleeved on the surface of the lead screw, and a worm wheel is sleeved on the surface of the lead screw close to the worm, and the worm wheel and the worm are arranged to cooperate with each other. The scraper can be adjusted by setting the lead screw.

[0009] As a further solution of the present invention, the adjustment mechanism includes a top plate, which is fixedly connected to one end of the sliding column, and a spring is provided on the surface of the sliding column close to the top plate. One end of the spring is fixedly connected to one side of the top plate, and the other end of the spring is fixedly connected to one side of the baffle. The surface of the worm gear close to the top plate is provided with an extrusion disk, and the extrusion disk and the top plate are arranged to cooperate with each other. A blanking plate is fixedly connected to the inner surface of the base, and the scraper column can be adjusted by setting the extrusion disk.

[0010] The beneficial effects of the utility model are:

[0011] 1. The utility model adopts the technical solution of separating sand and gravel by scraping columns, so that sand and gravel with high humidity can be successfully separated, thereby effectively solving the problem that when encountering some sand and gravel with excessive humidity, the screening efficiency will be extremely low, because the sand and gravel with excessive humidity will stick together tightly, so simple vibration cannot separate them in the first time. Because the extrusion disk is a convex shape, when the extrusion disk rotates, it will squeeze the top plate, so that the top plate drives the scraping column to move, and the top plate and the baffle are connected by a spring, so when the extrusion disk no longer squeezes the top plate, the top plate will also reset, so that the scraping column can separate the sand and gravel more finely, so as to avoid the phenomenon of low screening efficiency of sand and gravel with excessive humidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a sand and gravel screening device for construction engineering proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of a sand and gravel screening device for construction engineering proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of the bottom structure of a sand and gravel screening device for construction engineering proposed by the utility model;

[0015] Figure 4 This is a schematic diagram of the moving mechanism of a sand and gravel screening device for construction engineering proposed by the present utility model;

[0016] Figure 5 This is a schematic diagram of the adjustment mechanism of a sand and gravel screening device for construction engineering proposed by the utility model;

[0017] Figure 6 for Figure 5 A in the figure is an enlarged structural diagram.

[0018] In the figure: 1. Base; 2. Outer frame; 3. Support plate; 101. Slide plate; 102. Blanking plate; 201. Screen; 202. First motor; 203. Adjusting disk; 204. Adjusting column; 205. Adjusting slot; 301. Screw; 302. Scraper; 303. Worm gear; 304. Worm; 305. Extrusion disk; 306. Sliding column; 307. Top plate; 308. Spring; 309. Second motor; 310. Baffle; 311. Scraper. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figures 1-6 , including a base 1, two slides 101 are symmetrically fixedly connected inside the base 1, and the two slides 101 are slidably connected to the same outer frame 2, and a screen 201 is installed on one side of the outer frame 2. An adjusting slot 205 is opened on the surface of the outer frame 2 away from the screen 201, and a moving mechanism for moving the screen 201 is provided inside the adjusting slot 205. The base 1 is symmetrically fixedly connected to the inside of the side near the slide 101, and the bottom of the two support plates 3 is slidably connected to the same scraper 302, and the inside of the two support plates 3 is provided with an adjustment mechanism for adjusting the scraper 302. Two baffles 310 are fixedly connected to the inside of the base 1 near the support plate 3, and a plurality of sliding columns 306 are slidably connected to one side of the two baffles 310. The bottom of the plurality of sliding columns 306 are fixedly connected to a plurality of scraping columns 311, and the surface of the plurality of sliding columns 306 near the scraper 302 is provided with an adjustment mechanism for adjusting the scraping columns 311. Through the arrangement of the scraping columns 311, sand and gravel with high humidity can be successfully separated.

[0021] Reference Figure 2-Figure 4In a preferred embodiment, the moving mechanism includes a first motor 202, the first motor 202 is fixedly connected to the inside of the base 1, the output shaft of the first motor 202 is fixedly connected to an adjusting disk 203, and the surface of the adjusting disk 203 close to the adjusting groove 205 is fixedly connected to an adjusting column 204, the adjusting column 204 is set to deviate from the center of the circle, and the adjusting column 204 is slidably connected to the inside of the adjusting groove 205. The screen 201 can be moved by the setting of the adjusting column 204.

[0022] Reference Figure 1 and Figure 5 In a preferred embodiment, the adjustment mechanism includes a second motor 309, which is fixedly connected to one side of the base 1. The output shaft of the second motor 309 is fixedly connected to a worm 304. The support plate 3 is internally rotatably connected to a screw rod 301. The scraper 302 is sleeved on the surface of the screw rod 301. A worm wheel 303 is sleeved on the surface of the screw rod 301 close to the worm 304. The worm wheel 303 and the worm 304 are arranged to cooperate with each other. The scraper 302 can be adjusted by setting the screw rod 301.

[0023] Reference Figure 5 and Figure 6 In a preferred embodiment, the adjustment mechanism includes a top plate 307, which is fixedly connected to one end of the sliding column 306, and a spring 308 is provided on the surface of the sliding column 306 close to the top plate 307. One end of the spring 308 is fixedly connected to one side of the top plate 307, and the other end of the spring 308 is fixedly connected to one side of the baffle 310. The surface of the worm 304 close to the top plate 307 is provided with an extrusion disk 305, and the extrusion disk 305 and the top plate 307 are arranged to cooperate with each other. The inner surface of the base 1 is fixedly connected to the blanking plate 102, and the scraper 311 can be adjusted by setting the extrusion disk 305.

[0024] From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects: when in use, the device is placed in an appropriate position and then can be used. When in use, the first motor 202 and the second motor 309 will start accordingly. An adjusting disk 203 is installed on the output shaft of the first motor 202, and an adjusting column 204 is installed on one side of the adjusting disk 203. A screen 201 is installed inside the base 1, and sand and gravel can be screened through the screen 201. An adjusting slot 205 is opened on one side of the screen 201, and the adjusting column 20 4 is slidable inside the adjusting slot 205. Since the adjusting column 204 is installed off-center, when the adjusting disk 203 drives the adjusting column 204 to move, the adjusting column 204 can drive the screen 201 to move back and forth, so that the screen 201 can screen the sand and gravel. A worm 304 is installed on the output shaft of the second motor 309, and the worm 304 cooperates with the worm wheel 303 on one side of the screw rod 301. When the second motor 309 is started, the screw rod 301 will rotate accordingly. A scraper 303 is installed on the surface of the screw rod 301. 02, and the scraper 302 is restricted by the support plate 3, so that when the screw 301 rotates, the scraper 302 can move, and the distance between the scraper 302 and the screen 201 is adjusted, so that the sand and gravel can be scraped flat by the scraper 302 to avoid the phenomenon of sand and gravel stacking. A sliding column 306 is also installed on one side of the scraper 302, and a plurality of scraping columns 311 are installed at the bottom of the sliding column 306, and the plurality of scraping columns 311 are in contact with the sand and gravel. A top plate 307 is installed on one side of the sliding column 306, and the worm 304 is installed at the bottom of the sliding column 306. An extrusion disc 305 is installed on the side close to the top plate 307. Because the extrusion disc 305 is a convex shape, when the extrusion disc 305 rotates, it will squeeze the top plate 307, so that the top plate 307 drives the scraper 311 to move, and the top plate 307 and the baffle 310 are connected by a spring 308. Therefore, when the extrusion disc 305 is no longer squeezing the top plate 307, the top plate 307 will also reset, so that the scraper 311 can separate the sand and gravel more finely, so as to avoid the low screening efficiency of sand and gravel with excessive humidity.

[0025] For ease of description, spatially relative terms such as "above," "above," "on the upper surface of," and "upper" may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in a drawing is inverted, a device described as "above" or "on top of" another device or structure would then be positioned as "below" or "beneath" the other device or structure. Thus, the exemplary term "above" could include both the "above" and "below" orientations. The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein should be interpreted accordingly.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sand and gravel screening device for construction engineering, comprising a base (1), characterized in that: Two slides (101) are symmetrically fixedly connected inside the base (1), and the two slides (101) are slidably connected to the same outer frame (2). A screen (201) is installed on one side of the outer frame (2), and an adjustment groove (205) is provided on the surface of the side of the outer frame (2) away from the screen (201). A moving mechanism for moving the screen (201) is provided inside the adjustment groove (205). Two support plates (3) are symmetrically fixedly connected inside the side of the base (1) close to the slide (101), and the bottoms of the two support plates (3) are fixedly connected. The support plates (3) are slidably connected to the same scraper (302), and an adjustment mechanism for adjusting the scraper (302) is provided inside the two support plates (3). Two baffles (310) are fixedly connected inside the base (1) close to the support plate (3), and a plurality of sliding columns (306) are slidably connected to one side of the two baffles (310). The bottoms of the plurality of sliding columns (306) are fixedly connected to a plurality of scraper columns (311), and the surfaces of the plurality of sliding columns (306) close to the scraper (302) are provided with an adjustment mechanism for adjusting the scraper columns (311).

2. The sand and gravel screening device for construction engineering according to claim 1, characterized in that: The moving mechanism comprises a first motor (202), the first motor (202) being fixedly connected to the inside of the base (1), an output shaft of the first motor (202) being fixedly connected to an adjusting disk (203), a surface of the adjusting disk (203) close to the adjusting slot (205) being fixedly connected to an adjusting column (204), the adjusting column (204) being arranged to deviate from the center of a circle, and the adjusting column (204) being slidably connected to the inside of the adjusting slot (205).

3. The sand and gravel screening device for construction engineering according to claim 2, characterized in that: The adjustment mechanism comprises a second motor (309), the second motor (309) is fixedly connected to one side of the base (1), the output shaft of the second motor (309) is fixedly connected to a worm (304), and the support plate (3) is internally rotatably connected to a lead screw (301).

4. The sand and gravel screening device for construction engineering according to claim 3, characterized in that: The scraper (302) is sleeved on the surface of the screw (301), and a worm wheel (303) is sleeved on the surface of the screw (301) on one side close to the worm (304), and the worm wheel (303) and the worm (304) are arranged in a mutually coordinated manner.

5. The sand and gravel screening device for construction engineering according to claim 4, characterized in that: The adjustment mechanism includes a top plate (307), the top plate (307) is fixedly connected to one end of a sliding column (306), a spring (308) is sleeved on the surface of the sliding column (306) close to the top plate (307), and one end of the spring (308) is fixedly connected to one side of the top plate (307).

6. The sand and gravel screening device for construction engineering according to claim 5, characterized in that: The other end of the spring (308) is fixedly connected to one side of the baffle (310), and a squeeze disc (305) is sleeved on the surface of the worm (304) near the top plate (307). The squeeze disc (305) and the top plate (307) are arranged to cooperate with each other, and a blanking plate (102) is fixedly connected to the inner surface of the base (1).