Sand screening device for construction engineering specialty

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a professional sand screening device for construction engineering, which comprises a screening frame, a fine sand discharge port is arranged at the bottom of the screening frame, a screening barrel is rotatably connected in the screening frame, a waste discharge port is arranged at the discharge position of the screening barrel, and a screening mechanism is arranged in the screening frame and extends into the screening barrel. An anti-blocking mechanism is arranged on the top of the screening frame. By arranging the screening mechanism, the screening barrel continuously rotates during working, sand can be fully rolled and dispersed in the screening barrel, so that good conditions are created for screening, fine sand blocks which are adhered together can be crushed by a crushing rod, the screening passing rate of the fine sand is increased, resource waste is reduced, and the production cost is reduced. And the design of reverse rotation is adopted between the screening barrel and the stirring assembly, so that the screening barrel can pass through the screening holes more quickly and uniformly. And through the arranged anti-blocking mechanism, the phenomena that materials are accumulated and blocked in the feeding hopper are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, specifically is a sand screening device for construction engineering. BACKGROUND

[0002] In the field of construction engineering, sand is an important material that cannot be dispensed with. Whether it is road construction, housing construction or various infrastructure projects, there is a large demand for sand. The traditional sand screening method is often simple and extensive, and manual tools such as shovels are often used for simple screening. This method is inefficient, labor-intensive, and the screening effect is difficult to guarantee. With the continuous expansion of construction engineering scale and the increasing requirement of engineering progress, traditional manual sand screening has been unable to meet the needs of modern construction engineering.

[0003] According to the sand screening device for construction engineering (authorized announcement number: CN 220461296U) disclosed by the patent network, it is described that "the utility model relates to the technical field of sand screening device, discloses a sand screening device for engineering construction, including support. In the utility model, the inner side of the support is provided with a fixed block, the inner side of the fixed block is provided with a sliding rail, the inner side of the sliding rail is slidably connected with a sieve plate, the inner side of the sieve plate is provided with a hole, one end of the fixed block is fixedly connected with a block, through the cooperation of the fixed block, sliding rail, sieve plate, hole, block, sliding groove one, limiting rod, spring, sliding groove two and other structures, the equipment is quickly detachable from the sieve plate, which facilitates the replacement of the sieve plate according to the screening specification, and also facilitates the disassembly and cleaning of the sieve plate, improves the application range and practicality, through the cooperation of the support, circular ring, arc guide rail, sliding block, connecting rod, shell, inlet and other structures, the equipment effectively prevents the sand from being blocked in the inlet, improves the work efficiency."

[0004] For the above description, the applicant believes that there are the following problems: on the one hand, the device mainly uses a sieve plate to perform the sieving operation of fine sand. In the sieving process, waste such as stones will be completely collected in the sieve plate. Although the device is equipped with a portable sieve plate replacement mechanism, the sieve plate can be removed for cleaning, however, in the actual process of replacing the sieve plate, a certain amount of time is inevitably consumed. At the same time, the amount of fine sand that needs to be sieved in the construction site is usually very large. Such a large amount of fine sand means that the sieve plate needs to be replaced frequently during the use of the device. This frequent replacement of the sieve plate undoubtedly causes a lot of time waste. On the other hand, during the transportation of fine sand, it is likely to encounter humid weather. In such a humid environment, fine sand is prone to clumping. The device currently only sieves through simple vibration. For these clumped fine sand blocks, the sieving effect of this method may not be ideal. Simple vibration is difficult to effectively disperse the clumped fine sand blocks and make them pass through the sieve plate smoothly, which may cause some fine sand meeting the particle size requirements to be misjudged as unqualified and treated together with waste, or make some large clumps block the sieve plate, further reducing the sieving efficiency. Practical new type content

[0005] The purpose of the present application is to provide a sand screening device for construction engineering, to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present application provides the following technical scheme: a sand screening device for construction engineering, comprising a sieving frame, a fine sand discharge port is arranged at the bottom of the sieving frame, a sieving cylinder is rotatably connected inside the sieving frame, a waste discharge port is arranged at the discharge port of the sieving cylinder, a sieving mechanism is arranged inside the sieving frame extending to the inside of the sieving cylinder, and an anti-blocking mechanism is arranged at the top of the sieving frame.

[0007] The sieving mechanism comprises a stirring assembly and a sieving assembly, and the stirring assembly and the sieving assembly are arranged inside the sieving frame extending to the inside of the sieving cylinder.

[0008] Preferably, the stirring assembly comprises a stirring motor, the stirring motor is arranged inside a stirring frame, a stirring shaft is fixedly connected to the output end of the stirring motor, an anti-blocking brush is fixedly connected to the surface of the stirring shaft, and a crushing rod is fixedly connected to the surface of the anti-blocking brush.

[0009] Preferably, the number of anti-blocking brushes is eight, and four anti-blocking brushes are arranged in a circle on the surface of the stirring shaft, the number of crushing rods is sixteen, and two crushing rods are fixedly connected to the surface of each anti-blocking brush, and the top of the anti-blocking brush is in contact with the inner wall of the sieving cylinder.

[0010] Preferably, the screening assembly comprises a first gear fixedly connected to the surface of the stirring shaft, a sleeve rod fixedly connected to the inner wall of the screening cylinder, a second gear fixedly connected to one end of the sleeve rod close to the first gear, and a rotating disc and a rotating shaft rotatably connected inside the screening frame, the rotating shaft having a third gear and a fourth gear fixedly connected to the left and right ends thereof.

[0011] Preferably, the sleeve rod is rotatably connected to the surface of the stirring shaft, the first gear and the third gear are internally meshed with the rotating disc, and the second gear and the fourth gear are externally meshed with each other.

[0012] Preferably, the anti-blocking mechanism comprises a vibrating spring fixedly connected to the top of the screening frame, a feeding hopper fixedly connected to one end of the vibrating spring away from the screening frame, a vibrating motor arranged at the bottom of the feeding hopper, and a centrifugal block fixedly connected to the output end of the vibrating motor.

[0013] Preferably, the number of the vibrating springs is two, and the vibrating springs are symmetrically distributed on the top of the screening frame with the center line of the screening frame as the center.

[0014] Compared with the prior art, the construction engineering professional sand screening device has the following beneficial effects:

[0015] 1. The construction engineering professional sand screening device enables the screening cylinder to continuously rotate in work through the screening mechanism, so that the sand can be fully tumbled and dispersed inside the screening cylinder, thereby creating good conditions for screening. When the stirring shaft rotates, the anti-blocking brush rotates synchronously, the bristles of the anti-blocking brush can quickly brush out the materials that may be stuck in the screen holes, and ensure that the screen holes are always unobstructed. Once the fine sand blocks are encountered, the breaking rod can break the fine sand blocks, the fine sand that cannot pass through the screen holes due to adhesion can be smoothly separated and then fall from the screen holes, thereby improving the screening pass rate of the fine sand and reducing resource waste. The screening cylinder and the stirring assembly are designed to rotate in opposite directions. This opposite rotating mode enables the sand in the screening cylinder to be subjected to forces from two different directions, further enhances the tumbling effect of the sand, and promotes the sand to pass through the screen holes more quickly and uniformly, thereby improving the overall screening efficiency.

[0016] 2. The construction engineering professional sand screening device effectively avoids the accumulation and jamming of materials in the feeding hopper through the anti-blocking mechanism. Meanwhile, the impact force generated by the vibration can also preliminarily break the fine sand blocks. Under the action of the vibration, the internal structure of the fine sand blocks gradually loosens, and the originally closely adhered sand particles begin to disperse. This not only facilitates the subsequent screening work and enables the fine sand to pass through the screen holes more smoothly, but also improves the working efficiency of the entire sand screening device. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings described in the following are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 It is a front view structural schematic diagram of the present application.

[0019] Figure 2 It is a sectional view structural schematic diagram of the present application.

[0020] Figure 3 It is a stirring assembly structural schematic diagram of the present application.

[0021] Figure 4 It is a screening assembly structural schematic diagram of the present application.

[0022] Figure 5 It is a anti-blocking mechanism structural schematic diagram of the present application.

[0023] In the figure: 1, screening frame; 2, fine sand discharge port; 3, screening cylinder; 4, waste discharge port; 5, screening mechanism; 51, stirring assembly; 511, stirring motor; 512, stirring shaft; 513, anti-blocking brush; 514, crushing rod; 52, screening assembly; 521, first gear; 522, sleeve rod; 523, second gear; 524, rotating disc; 525, rotating shaft; 526, third gear; 527, fourth gear; 6, anti-blocking mechanism; 61, vibration spring; 62, feeding hopper; 63, vibration motor; 64, centrifugal block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0025] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0026] Embodiment one:

[0027] Please refer to Figures 1-4 The utility model provides a technical scheme: a sand screening device for construction engineering, which comprises a screening frame 1, a fine sand discharge port 2 arranged at the bottom of the screening frame 1, a screening cylinder 3 rotatably connected inside the screening frame 1, a waste discharge port 4 arranged at the discharge port of the screening cylinder 3, a screening mechanism 5 arranged inside the screening frame 1 and extending into the screening cylinder 3, and an anti-blocking mechanism 6 arranged at the top of the screening frame 1.

[0028] The screening mechanism 5 comprises a stirring assembly 51 and a screening assembly 52, and both the stirring assembly 51 and the screening assembly 52 are arranged inside the screening frame 1 extending into the screening cylinder 3.

[0029] Further, the stirring assembly 51 comprises a stirring motor 511 arranged inside a stirring frame, a stirring shaft 512 fixedly connected to the output end of the stirring motor 511, an anti-blocking brush 513 fixedly connected to the surface of the stirring shaft 512, and a crushing rod 514 fixedly connected to the surface of the anti-blocking brush 513. The stirring motor 511 can drive the stirring shaft 512, the anti-blocking brush 513 and the crushing rod 514 to rotate together, and the crushing rod 514 can break the fine sand blocks adhered together.

[0030] Further, there are eight anti-blocking brushes 513 arranged circumferentially on the surface of the stirring shaft 512 in groups of four, and there are sixteen crushing rods 514 fixedly connected to the surface of the anti-blocking brush 513 in groups of two. The top of the anti-blocking brush 513 is in contact with the inner wall of the screening cylinder 3. When the anti-blocking brush 513 rotates, it can brush out the materials stuck in the screen holes of the screening cylinder 3, thereby avoiding the blocking of the screen holes and affecting the screening efficiency.

[0031] Further, the screening assembly 52 comprises a first gear 521 fixedly connected to the surface of the stirring shaft 512, a sleeve rod 522 fixedly connected to the inner wall of the screening cylinder 3, a second gear 523 fixedly connected to the end of the sleeve rod 522 close to the first gear 521, a rotating disc 524 and a rotating shaft 525 rotatably connected inside the screening frame 1, a third gear 526 and a fourth gear 527 fixedly connected to the left and right ends of the rotating shaft 525. When the stirring shaft 512 rotates, it can drive the first gear 521 to rotate, and when the sleeve rod 522 rotates, it can drive the screening cylinder 3 to rotate.

[0032] Further, the sleeve rod 522 is rotationally connected to the surface of the stirring shaft 512, the first gear 521 and the third gear 526 are all engaged with the rotating disc 524, when the first gear 521 rotates clockwise, it can drive the third gear 526 and the rotating disc 524 to rotate clockwise, since the fourth gear 527 is fixedly connected with the third gear 526 through the rotating shaft 525, when the third gear 526 rotates clockwise, it can drive the fourth gear 527 to rotate clockwise, the second gear 523 and the fourth gear 527 are mutually engaged, so that the second gear 523 rotates counterclockwise, thereby driving the sleeve rod 522 and the screening cylinder 3 to rotate counterclockwise.

[0033] Embodiment two:

[0034] Please refer to Figure 5 And combined with embodiment one, the anti-blocking mechanism 6 includes a vibrating spring 61, the vibrating spring 61 is fixedly connected to the top of the screening frame 1, the vibrating spring 61 is fixedly connected with a feeding hopper 62 at the end away from the screening frame 1, the bottom of the feeding hopper 62 is provided with a vibrating motor 63, the output end of the vibrating motor 63 is fixedly connected with a centrifugal block 64, starting the vibrating motor 63 can drive the centrifugal block 64 to rotate, since the vibrating spring 61, the whole anti-blocking mechanism 6 makes centrifugal motion, which can avoid the to-be-screened material from being stuck in the feeding hopper 62.

[0035] Further, the number of vibrating springs 61 is two, and they are symmetrically distributed on the top of the screening frame 1 with the center line of the screening frame 1 as the center. This symmetrical layout ensures that the feeding hopper 62 can maintain a stable and uniform motion state when it is vibrated.

[0036] In actual operation, when the device is used, the to-be-screened material is poured into the feeding hopper 62, the vibrating motor 63 is started, which drives the feeding hopper 62 to make centrifugal motion, so that the to-be-screened material will not be blocked in the feeding hopper 62, the to-be-screened material enters the inside of the screening cylinder 3 from the feeding hopper 62, fine sand will enter the fine sand discharge port 2 from the screen holes on the surface of the screening cylinder 3, the stirring motor 511 is started, which drives the anti-blocking brush 513 and the screening cylinder 3 to rotate in opposite directions, the anti-blocking brush 513 can clean the material stuck in the screen holes, at the same time, the crushing rod 514 can break the fine sand blocks adhered together, the broken fine sand will be discharged from the fine sand discharge port 2, avoiding waste, and other waste will be discharged from the waste discharge port 4.

[0037] It is to be noted that, as used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component" can include a combination of two or more components. Additionally, the terms "comprise," "comprises," and "comprising," or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Furthermore, unless otherwise indicated herein, the terms "first," "second," "third," etc., are not intended to denote a physical order, quantity, or importance, but rather are used for the purpose of nomenclature.

Claims

1. A sand screening device for construction engineering, comprising a screening frame (1), characterized in that: The bottom of the screening frame (1) is provided with a fine sand discharge port (2), the interior of the screening frame (1) is rotatably connected to a screening drum (3), a waste material discharge port (4) is provided at the discharge of the screening drum (3), the interior of the screening frame (1) is provided with a screening mechanism (5) extending to the interior of the screening drum (3), and the top of the screening frame (1) is provided with an anti-blocking mechanism (6); The screening mechanism (5) comprises a stirring assembly (51) and a screening assembly (52), and the stirring assembly (51) and the screening assembly (52) are both arranged on the screening frame (1) and extend to the interior of the screening cylinder (3).

2. The sand screening device for construction engineering according to claim 1, characterized in that: The stirring assembly (51) comprises a stirring motor (511), the stirring motor (511) being arranged inside a stirring frame, the output end of the stirring motor (511) being fixedly connected to a stirring shaft (512), the surface of the stirring shaft (512) being fixedly connected to an anti-blocking brush (513), and the surface of the anti-blocking brush (513) being fixedly connected to a breaking rod (514).

3. The sand screening device for construction engineering according to claim 2, characterized in that: The number of the anti-blocking brushes (513) is eight and they are arranged in a circle on the surface of the stirring shaft (512) in groups of four. The number of the crushing rods (514) is sixteen and they are fixedly connected to the surface of the anti-blocking brushes (513) in groups of two. The top of the anti-blocking brushes (513) contacts the inner wall of the screening cylinder (3).

4. The sand screening device for construction engineering according to claim 2, characterized in that: The screening assembly (52) comprises a first gear (521) and a sleeve rod (522). The first gear (521) is fixedly connected to the surface of the stirring shaft (512). The sleeve rod (522) is fixedly connected to the inner wall of the screening cylinder (3). One end of the sleeve rod (522) close to the first gear (521) is fixedly connected to a second gear (523). A rotating disk (524) and a rotating shaft (525) are rotatably connected inside the screening frame (1). The left and right ends of the rotating shaft (525) are fixedly connected to a third gear (526) and a fourth gear (527).

5. The sand screening device for construction engineering according to claim 4, characterized in that: The sleeve rod (522) is rotatably connected to the surface of the stirring shaft (512), the first gear (521) and the third gear (526) are both internally meshed with the rotating disk (524), and the second gear (523) and the fourth gear (527) are externally meshed with each other.

6. The sand screening device for construction engineering according to claim 1, characterized in that: The anti-blocking mechanism (6) comprises a vibration spring (61), the vibration spring (61) is fixedly connected to the top of the screening frame (1), the end of the vibration spring (61) away from the screening frame (1) is fixedly connected to a feed hopper (62), a vibration motor (63) is provided at the bottom of the feed hopper (62), and the output end of the vibration motor (63) is fixedly connected to a centrifugal block (64).

7. The sand screening device for construction engineering according to claim 6, characterized in that: There are two vibration springs (61), which are symmetrically distributed on the top of the screening frame (1) with the center line of the screening frame (1) as the center.

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