Gravel screening device for civil engineering

Abstract

The utility model relates to the technical field of gravel screening devices, and discloses a civil engineering gravel screening device which comprises a main body, the left side of the main body is provided with a three-stage discharge port, the right side of the main body is fixedly connected with a connecting plate, and the top of the connecting plate is provided with a spiral conveying device. The first sliding block is slidably connected to the fixing frame, so that relative movement of the first sliding block and the sliding frame is achieved, the first sliding block and the sliding frame drive the first supporting plate and the second supporting plate to move relative to each other, and the first supporting plate and the second supporting plate drive the second-stage screening frame and the first-stage screening frame to move relative to each other. And the first-stage screening frame and the second-stage screening frame can be driven at the same time to conduct secondary screening on dust and soil in the broken stones, so that the soil, fine powder and the broken stones can be rapidly separated, the use effect of follow-up broken stones is prevented from being affected, and the overall screening effect and the broken stone quality of the device are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gravel screening devices, and specifically relates to a gravel screening device for civil engineering. Background Technique

[0002] The gravel screening device for civil engineering can reduce the screening workload at the construction site and improve the construction efficiency through pre-screening the gravel. At the same time, the uniform gravel particle size also helps to reduce waste and rework phenomena during the construction process.

[0003] In a gravel screening device disclosed according to the patent network (the authorization announcement is CN 220239262 U), it is described that "a gravel screening device includes a bottom plate and a frame. The frame is located directly above the bottom plate, and the bottom surface of the frame is fixedly connected to the bottom plate. The frame is a hollow structure inside, and a screen is fixedly connected inside the frame. A vibrator is fixedly installed at the bottom end of the screen. A conveying device is arranged on the top surface of the bottom plate, and a cleaning device is arranged inside the frame."

[0004] Regarding the above description content, the applicant believes that the following problems exist:

[0005] During the use of this utility model, the device conveys gravel into the device through a screw conveyor device, and drives the screen to vibrate through a vibrator, thereby realizing the screening of gravel. The large gravel on the screen is driven by an electric push rod to drive a scraper, which scrapes it into the storage box. However, during actual use, the device uses a single-layer screen for screening gravel. Since there are often a large amount of dust and soil in the gravel, the single-layer screen cannot effectively remove impurities such as soil and fine powder in the gravel, resulting in a high impurity content in the screened gravel. These impurities will not only affect the appearance quality of the gravel, but may also have an adverse impact on subsequent use, thereby further affecting the screening effect. Therefore, a gravel screening device for civil engineering needs to be improved. Content of the Utility Model

[0006] The purpose of the utility model is to provide a gravel screening device for civil engineering to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A gravel screening device for civil engineering includes a main body. A three-stage discharge port is arranged on the left side of the main body. A connecting plate is fixedly connected to the right side of the main body. A screw conveyor device is arranged on the top of the connecting plate. A dispersing mechanism is arranged on the front and inside of the main body. A multi-stage screening mechanism is arranged inside the main body. A second discharge port is arranged on the right side of the main body. A first discharge port is arranged on the right side of the main body;

[0008] The multi-stage screening mechanism includes a swinging assembly and a screening assembly. The screening assembly is arranged on the top of the swinging assembly to facilitate multi-stage screening of gravel and further improve the screening effect.

[0009] Preferably, the swing assembly includes a fixed frame, the fixed frame is fixedly connected to the front and rear inner sides of the main body, a slider No. 1 is slidably connected inside the fixed frame, a motor No. 1 is fixedly connected to the back of the slider No. 1, a rotating shaft is fixedly connected to the output end of the motor No. 1, a spring No. 1 is fixedly connected between the left side of the slider No. 1 and the fixed frame, a spring No. 2 is fixedly connected between the right side of the slider No. 1 and the fixed frame, a rotating rod is fixedly connected to the front of the rotating shaft, a connecting rod is fixedly connected to the end of the rotating rod away from the rotating shaft, and a slide is rotatably connected to the end of the connecting rod away from the rotating shaft, so as to drive the primary screening frame and the secondary screening frame to swing back and forth at the same time.

[0010] Preferably, the slide is fixedly connected between the No. 1 spring and the No. 2 spring, and the slide is slidably connected inside the fixed frame to facilitate pulling the slide to move.

[0011] Preferably, the screening material assembly includes a No. 1 support plate, the No. 1 support plate is fixedly connected to the back of a No. 1 slider, a secondary screening frame is fixedly connected to the top of the No. 1 support plate, a No. 2 support plate is fixedly connected to the inner side of the slide, a fixed suspension is fixedly connected to the top of the No. 2 support plate, and a primary screening frame is fixedly connected to the top of the fixed suspension, so as to facilitate multi-layer screening of gravel.

[0012] Preferably, the primary screening frame and the secondary screening frame are in contact with each other, and the aperture of the primary screening frame is larger than that of the secondary screening frame, so that dust and small particles in the gravel can be screened out of the outside of the gravel.

[0013] Preferably, the dispersion mechanism includes a pull plate, the pull plate is fixedly connected to the front side of the main body, a No. 2 motor is fixedly connected to the front side of the pull plate, a No. 1 pulley is fixedly connected to the output end of the No. 2 motor, a No. 1 pulley is externally connected to a synchronous belt, an end of the synchronous belt away from the No. 1 pulley is transmission-connected to the No. 2 pulley, and a dispersion plate is fixedly connected to the back of the pulley, so as to disperse the gravel entering the device and achieve a better screening effect.

[0014] Preferably, the dispersion plate is rotatably connected inside the main body, and the second pulley is rotatably connected to the front side of the main body, so as to drive the dispersion plate to rotate stably.

[0015] Compared with the prior art, the utility model provides a crushed stone screening device for civil engineering, which has the following beneficial effects:

[0016] 1. For this gravel screening device used in civil engineering, by means of the multi-stage screening mechanism set, start the first motor. The first slider is slidably connected to the fixed frame, thereby realizing the relative movement between the first slider and the carriage. As a result, the first slider and the carriage drive the first support plate and the second support plate to move relatively respectively, and the first support plate and the second support plate drive the secondary screening frame and the primary screening frame to move relatively respectively. Thus, it can simultaneously drive the primary screening frame to screen large gravel and the secondary screening frame to conduct secondary screening on the dust and soil in the gravel, so as to quickly separate the soil, fine powder and gravel, avoid affecting the subsequent use effect of the gravel, and further improve the overall screening effect and gravel quality of the device.

[0017] 2. For this gravel screening device used in civil engineering, by means of the dispersion mechanism set, start the second motor. The second motor drives the first belt pulley to rotate, and then the first belt pulley drives the synchronous belt to rotate. Thus, the synchronous belt drives the second belt pulley to rotate, and then the second belt pulley drives the dispersion plate to rotate, and it can disperse the gravel entering the main body, so as to further improve the subsequent screening effect. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings:

[0019] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the structure of the front cross-section of the present invention;

[0021] Figure 3 It is a schematic diagram of the external structure of the multi-stage screening mechanism of the present invention;

[0022] Figure 4 It is a schematic diagram of the external structure of the swing assembly of the present invention;

[0023] Figure 5 It is a schematic diagram of the external structure of the material screening assembly of the present invention;

[0024] Figure 6 It is a schematic diagram of the unfolded structure of the dispersion mechanism of the present invention.

[0025] In the figure: 1. Main body; 2. Tertiary discharge port; 3. Connecting plate; 4. Screw conveyor device; 5. Dispersion mechanism; 6. Multi-stage screening mechanism; 7. Secondary discharge port; 8. Primary discharge port; 61. Oscillation assembly; 62. Screening component; 611. Fixed frame; 612. First slider; 613. First motor; 614. Rotating shaft; 615. First spring; 616. Rotating rod; 617. Second spring; 618. Connecting rod; 619. Sliding frame; 621. First support plate; 622. Secondary screening frame; 623. Second support plate; 624. Fixed suspension; 625. Primary screening frame; 51. Pulling plate; 52. Second motor; 53. First pulley; 54. Synchronous belt; 55. Second pulley; 56. Dispersion plate. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0028] Embodiment 1:

[0029] Please refer to Figure 1-6 , the present invention provides a technical solution: a gravel screening device for civil engineering, including a main body 1, a tertiary discharge port 2 is arranged on the left side of the main body 1, a connecting plate 3 is fixedly connected to the right side of the main body 1, a screw conveyor device 4 is arranged on the top of the connecting plate 3, a dispersion mechanism 5 is arranged on the front and inside of the main body 1, a multi-stage screening mechanism 6 is arranged inside the main body 1, a secondary discharge port 7 is arranged on the right side of the main body 1, and a primary discharge port 8 is arranged on the right side of the main body 1;

[0030] The multi-stage screening mechanism 6 includes an oscillation assembly 61 and a screening component 62. The screening component 62 is arranged on the top of the oscillation assembly 61 to facilitate multi-stage screening of gravel and further improve the screening effect.

[0031] Furthermore, the swing assembly 61 includes a fixed frame 611, which is fixedly connected to the front and rear inner sides of the main body 1. A slider 612 is slidably connected inside the fixed frame 611. A motor 613 is fixedly connected to the back of the slider 612. A rotating shaft 614 is fixedly connected to the output end of the motor 613. A spring 615 is fixedly connected between the left side of the slider 612 and the fixed frame 611. A spring 617 is fixedly connected between the right side of the slider 612 and the fixed frame 611. A rotating rod 616 is fixedly connected to the front of the rotating shaft 614. A connecting rod 618 is fixedly connected to the end of the connecting rod 618 away from the rotating shaft 614. A slide 619 is rotatably connected to the end of the connecting rod 618 away from the rotating shaft 614, so that the primary screening frame 625 and the secondary screening frame 622 can be driven to swing back and forth at the same time.

[0032] Furthermore, the slide 619 is fixedly connected between the No. 1 spring 615 and the No. 2 spring 617, and the slide 619 is slidably connected inside the fixed frame 611, so as to facilitate pulling the slide 619 to move.

[0033] Furthermore, the screening assembly 62 includes a No. 1 support plate 621, which is fixedly connected to the back of the No. 1 slider 612, a secondary screening frame 622 is fixedly connected to the top of the No. 1 support plate 621, a No. 2 support plate 623 is fixedly connected to the inner side of the slide 619, a fixed suspension 624 is fixedly connected to the top of the No. 2 support plate 623, and a primary screening frame 625 is fixedly connected to the top of the fixed suspension 624, so as to facilitate multi-layer screening of gravel.

[0034] Furthermore, the primary screening frame 625 and the secondary screening frame 622 are in contact with each other, and the aperture of the primary screening frame 625 is larger than that of the secondary screening frame 622, so that dust and small particles in the gravel can be screened out of the gravel.

[0035] Embodiment 2:

[0036] See also Figure 6 In combination with the first embodiment, it is further obtained that the dispersion mechanism 5 includes a pull plate 51, the pull plate 51 is fixedly connected to the front of the main body 1, a No. 2 motor 52 is fixedly connected to the front of the pull plate 51, a No. 1 pulley 53 is fixedly connected to the output end of the No. 2 motor 52, the No. 1 pulley 53 is externally connected to a synchronous belt 54, the end of the synchronous belt 54 away from the No. 1 pulley 53 is connected to the No. 2 pulley 55, and a dispersion plate 56 is fixedly connected to the back of the pulley, so that the gravel entering the device can be dispersed, so that the screening effect is better.

[0037] Furthermore, the dispersion plate 56 is rotatably connected inside the main body 1 , and the second pulley 55 is rotatably connected to the front side of the main body 1 , so as to drive the dispersion plate 56 to rotate stably.

[0038] In the actual operation process, when the device is in use, first, the crushed stones are conveyed into the main body 1 through the screw conveyor device 4. And during the entry process, through the arranged dispersion mechanism 5, the second motor 52 is started. The second motor 52 drives the first belt pulley 53 to rotate, and then the first belt pulley 53 drives the synchronous belt 54 to rotate. Thus, the synchronous belt 54 drives the second belt pulley 55 to rotate, and then the second belt pulley 55 drives the dispersion plate 56 to rotate, and it can disperse the crushed stones entering the main body 1. At the same time, through the arranged multi-stage screening mechanism 6, the first motor 613 is started. The first motor 613 drives the rotating shaft 614 to rotate, and then the rotating shaft 614 drives the rotating rod 616 to rotate. Thus, the rotating rod 616 drives the connecting rod 618 to rotate, so that the connecting rod 618 pulls the carriage 619 to move leftward. Since the first motor 613 is fixed on the first slider 612, and the first slider 612 is slidably connected to the fixed frame 611. And during the process that the connecting rod 618 pulls the carriage 619 to move leftward, and because the first spring 615 and the second spring 617 are respectively arranged on both sides of the first slider 612 and the carriage 619, the relative movement between the first slider 612 and the carriage 619 is realized, so that the first slider 612 and the carriage 619 respectively drive the first support plate 621 and the second support plate 623 to move relatively. And the first support plate 621 and the second support plate 623 respectively drive the secondary screening frame 622 and the primary screening frame 625 to move relatively, so that it can simultaneously drive the primary screening frame 625 to screen out large crushed stones and the secondary screening frame 622 to conduct secondary screening on the dust and soil in the crushed stones. And the screened dust and soil are discharged out of the device through the tertiary discharge port 2. And because the primary screening frame 625 and the secondary screening frame 622 have a certain slope, the large crushed stones are discharged out of the device through the primary discharge port 8, and the screened crushed stones are discharged out of the device through the secondary discharge port.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

Claims

1. A crushed stone screening device for civil engineering, comprising a main body (1), characterized in that: The left side of the main body (1) is provided with a three-stage discharge port (2), the right side of the main body (1) is fixedly connected with a connecting plate (3), the top of the connecting plate (3) is provided with a screw conveying device (4), the front and interior of the main body (1) are provided with a dispersion mechanism (5), the interior of the main body (1) is provided with a multi-stage screening mechanism (6), the right side of the main body (1) is provided with a No. 2 discharge port (7), and the right side of the main body (1) is provided with a first-stage discharge port (8); The multi-stage screening mechanism (6) comprises a swing assembly (61) and a screening assembly (62), wherein the screening assembly (62) is arranged on the top of the swing assembly (61).

2. A crushed stone screening device for civil engineering according to claim 1, characterized in that: The swing assembly (61) comprises a fixed frame (611), the fixed frame (611) is fixedly connected to the front and rear inner sides of the main body (1), a first slider (612) is slidably connected inside the fixed frame (611), a first motor (613) is fixedly connected to the back of the first slider (612), a rotating shaft (614) is fixedly connected to the output end of the first motor (613), a first spring (615) is fixedly connected between the left side of the first slider (612) and the fixed frame (611), a second spring (617) is fixedly connected between the right side of the first slider (612) and the fixed frame (611), a rotating rod (616) is fixedly connected to the front side of the rotating shaft (614), an end of the rotating rod (616) away from the rotating shaft (614) is fixedly connected to a connecting rod (618), and an end of the connecting rod (618) away from the rotating shaft (614) is rotatably connected to a slide (619).

3. A crushed stone screening device for civil engineering according to claim 2, characterized in that: The slide (619) is fixedly connected between the No. 1 spring (615) and the No. 2 spring (617), and the slide (619) is slidably connected inside the fixed frame (611).

4. A crushed stone screening device for civil engineering according to claim 2, characterized in that: The screening material assembly (62) comprises a No. 1 support plate (621), wherein the No. 1 support plate (621) is fixedly connected to the back of a No. 1 slide block (612), a secondary screening frame (622) is fixedly connected to the top of the No. 1 support plate (621), a No. 2 support plate (623) is fixedly connected to the inner side of the slide block (619), a fixed suspension (624) is fixedly connected to the top of the No. 2 support plate (623), and a primary screening frame (625) is fixedly connected to the top of the fixed suspension (624).

5. A crushed stone screening device for civil engineering according to claim 4, characterized in that: The primary screening frame (625) and the secondary screening frame (622) are in contact with each other, and the aperture of the primary screening frame (625) is larger than the aperture of the secondary screening frame (622).

6. The crushed stone screening device for civil engineering according to claim 1, characterized in that: The dispersion mechanism (5) comprises a pull plate (51), the pull plate (51) is fixedly connected to the front of the main body (1), a No. 2 motor (52) is fixedly connected to the front of the pull plate (51), an output end of the No. 2 motor (52) is fixedly connected to a No. 1 pulley (53), an external transmission connection of the No. 1 pulley (53) is connected to a synchronous belt (54), an end of the synchronous belt (54) away from the No. 1 pulley (53) is transmission connected to a No. 2 pulley (55), and a dispersion plate (56) is fixedly connected to the back of the pulley.

7. A crushed stone screening device for civil engineering according to claim 6, characterized in that: The dispersion plate (56) is rotatably connected inside the main body (1), and the second pulley (55) is rotatably connected to the front side of the main body (1).

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