Sand screening device for construction

Abstract

The utility model discloses a sand screening device for construction, comprising: a main support, a mobile frame, a sand screening trough and a driving mechanism, the mobile frame is a square annular structure, the mobile frame is horizontally slidably connected between the front and rear sides of the main support, the sand screening trough is placed above the mobile frame, and the front bottom or the rear bottom of the sand screening trough is rotatably connected to the side of the mobile frame, the main support is provided with a driving mechanism for driving the mobile frame to slide back and forth, and sand screening holes are evenly distributed on the bottom of the sand screening trough; the sand screening device for construction can automatically screen sand, and the screening is sufficient.

Description

Technical Field

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

[0002] Sand is an important raw material for construction. When sand is salvaged from the river, it needs to be screened to separate the coarse and fine sand. The traditional manual sand screening is to tilt the sand net and support it on the ground, and then pour the sand on the top of the sand net. As the sand slides down the sand net, sand smaller than the diameter of the gauze net passes through the sand net, and sand larger than the diameter of the sand net is filtered and slides down to the bottom of the sand net. The traditional manual sand screening has the defects of insufficient sand screening and high labor intensity. Therefore, there are also sand screening devices that can automatically screen sand in the prior art, but some automatic sand screening devices still use sand poured on the inclined screen to screen the sand by automatically sliding, which is prone to insufficient sand screening. Utility Model Content

[0003] The utility model aims to provide a sand screening device for construction, which can automatically screen sand and screen the sand sufficiently.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] Provided is a sand screening device for construction, comprising: a main support, a mobile frame, a sand screening trough and a driving mechanism, wherein the mobile frame is a square ring structure, the mobile frame is horizontally slidably connected between the front and rear sides of the main support, the sand screening trough is placed above the mobile frame, and the front bottom or the rear bottom of the sand screening trough is rotatably connected to the side of the mobile frame, the main support is provided with a driving mechanism for driving the mobile frame to slide reciprocally, and the bottom of the sand screening trough is evenly distributed with sand screening holes.

[0006] As a preferred solution for a sand screening device for construction, the driving mechanism includes: a spring, a motor, a driving wheel and a rack. One of the left and right sides of the mobile frame is connected to the main bracket through the spring. The rack is arranged on the side of the mobile frame away from the spring. The length directions of the rack and the spring are the same as the sliding direction of the mobile frame. Driving teeth are evenly distributed on a section of the arc on the outer circumference of the driving wheel, and the arc is smaller than a semicircle. The motor is fixed to the main bracket, and the output shaft of the motor is fixedly connected to the center of the driving wheel, and the driving teeth are meshed with the rack.

[0007] As a preferred solution for a sand screening device for construction, rollers are evenly distributed on the front and rear sides of the mobile frame, horizontal slide rails are respectively provided on the front and rear sides of the main bracket, and the mobile frame is slidably connected to the slide rails of the main bracket through rollers.

[0008] As a preferred solution for the sand screening device for construction, a handle is provided on the outer wall of the sand screening trough on one side away from the rotating connection side.

[0009] As a preferred solution of the sand screening device for construction, the inner wall of the sand screening trough on the rotating connection side is provided with an inclined surface.

[0010] As a preferred solution of the sand screening device for construction, the main support is provided with a material receiving hopper below the movable frame.

[0011] As a preferred solution of the sand screening device for construction, a conical support platform is provided at the bottom of the support foot of the main support.

[0012] As a preferred solution of the sand screening device for construction, an anti-slip pad is provided at the bottom of the conical support platform.

[0013] The beneficial effects of the utility model are as follows: the sand screening device for construction proposed by the utility model connects the mobile frame with the sand screening trough to the main support by sliding, and drives the reciprocating sliding through the driving mechanism, and at the same time, the front bottom or the rear bottom of the sand screening trough is rotatably connected to the side of the mobile frame. When screening sand, the sand is poured into the sand screening trough, and the driving mechanism drives the mobile frame and the sand screening trough to slide reciprocally to screen the sand, and the sand screened through the sand screening hole falls from the middle through hole of the mobile frame to the bottom. After the sand screening is completed, the sand remaining in the sand screening trough that cannot pass through the sand screening hole is poured out by the staff by rotating the sand screening trough to complete the sand screening work; thereby, the function of automatic sand screening is realized, and the screening is sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of a sand screening device for construction according to an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a sand screening device for construction according to an embodiment of the utility model from another angle.

[0017] In the figure:

[0018] 1. Main bracket; 101. Slide rail; 102. Conical support platform; 2. Mobile frame; 3. Sand screening trough; 4. Spring; 5. Motor; 6. Driving wheel; 601. Driving gear; 7. Rack; 8. Handle; 9. Inclined surface; 10. Receiving hopper. DETAILED DESCRIPTION

[0019] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0020] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0021] Reference Figure 1-2 An embodiment of the utility model provides a sand screening device for construction, comprising: a main support 1, a mobile frame 2, a sand screening trough 3 and a driving mechanism, wherein the mobile frame 2 is a square ring structure, and the mobile frame 2 is horizontally slidably connected between the front and rear sides of the main support 1, and the sand screening trough 3 is placed above the mobile frame 2, and the rear bottom of the sand screening trough 3 is rotatably connected to the side of the mobile frame 2, and the main support 1 is provided with a driving mechanism for driving the mobile frame 2 to slide back and forth, and the bottom of the sand screening trough 3 is evenly distributed with sand screening holes.

[0022] In the above technical scheme, the mobile frame 2 with the sand screening trough 3 is slidably connected to the main support 1, and driven to slide back and forth by a driving mechanism, and at the same time, the rear bottom of the sand screening trough 3 is rotatably connected to the side of the mobile frame 2. When screening sand, the sand is poured into the sand screening trough 3, and the driving mechanism drives the mobile frame 2 and the sand screening trough 3 to slide back and forth to screen the sand. The sand screened from the sand screening hole falls from the middle through hole of the mobile frame 2 to the bottom. After the sand screening is completed, the remaining sand in the sand screening trough 3 that cannot pass through the sand screening hole is poured out by the staff by rotating the sand screening trough 3 to complete the sand screening work; thereby the function of automatic sand screening is realized, and the screening is sufficient.

[0023] In some embodiments, the driving mechanism includes: a spring 4, a motor 5, a driving wheel 6 and a rack 7. The left side of the mobile frame 2 is connected to the main support 1 through the spring 4, and the rack 7 is arranged on the right side of the mobile frame 2. The length directions of both the rack 7 and the spring 4 are the same as the sliding direction of the mobile frame 2. The driving teeth 601 are evenly distributed on a section of the arc on the outer circumference of the driving wheel 6, and the arc is smaller than a semicircle. The motor 5 is fixed to the main support 1, and the output shaft of the motor 5 is fixedly connected to the center of the driving wheel 6, and the driving teeth 601 are meshed with the rack 7. During operation, the motor 5 intermittently controls the driving wheel 6 to rotate. When the driving wheel 6 rotates to the position where the driving tooth 601 is meshed with the rack 7, the driving wheel 6 drives the rack 7 to slide, thereby driving the mobile frame 2 to slide and stretching the spring 4. When the driving wheel 6 rotates to the position where the driving tooth 601 is separated from the rack 7, under the reset action of the spring 4, the spring 4 drives the mobile frame 2 to rebound and slide back and forth repeatedly until the spring 4 and the mobile frame 2 are completely reset and stationary. The motor 5 drives the wheel 6 to rotate to the position where the driving tooth 601 is meshed with the rack 7 again, and the cyclic motion is realized, thereby realizing the function of driving the mobile frame 2 to slide back and forth. The structure is simple and the design is ingenious.

[0024] In some embodiments, rollers are evenly distributed on the front and rear sides of the mobile frame 2, and horizontal slide rails 101 are respectively provided on the front and rear sides of the main support 1. The mobile frame 2 is slidably connected to the slide rails 101 of the main support 1 through rollers. This structural design makes the sliding of the mobile frame 2 smoother.

[0025] In some embodiments, a handle 8 is provided on the outer wall of the sand screening trough 3 away from the rotating connection side. The handle 8 facilitates the staff to rotate the sand screening trough 3 to pour out the remaining sand in the trough.

[0026] In some embodiments, the inner wall of the sand screening trough 3 on the rotating connection side is provided with an inclined surface 9. The inclined surface 9 facilitates pouring out all the sand in the sand screening trough 3 without completely turning over the sand screening trough 3.

[0027] In some embodiments, the main support 1 is provided with a receiving hopper 10 below the mobile frame 2. The receiving hopper 10 is used to receive the sand that falls through the screen, thereby facilitating the collection of the screened sand.

[0028] In some embodiments, a conical support platform 102 is provided at the bottom of the support foot of the main support 1. This structural design makes the support of the main support 1 more stable.

[0029] Furthermore, an anti-skid pad is provided at the bottom of the conical support platform 102. Specifically, the anti-skid pad can be made of rubber material; the protective pad plays an anti-skid role to prevent the main bracket 1 from moving during the sand screening process.

[0030] In the description of the present invention, it should be understood that the terms "middle", "length", "up", "down", "front", "back", "vertical", "horizontal", "inside", "outside", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the present invention, unless otherwise clearly specified and limited, the first feature "on" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. "Multiple" means at least two, such as two, three, etc., unless otherwise clearly and specifically limited.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above is only for explaining the implementation mode of the utility model and is not used to limit the utility model. For those skilled in the art, any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the utility model without creative work should be included in the protection scope of the utility model.

Claims

1. A sand screening device for construction, characterized in that: include: A main support (1), a mobile frame (2), a sand screening trough (3) and a driving mechanism, wherein the mobile frame (2) is a square ring structure, the mobile frame (2) is horizontally slidably connected between the front and rear sides of the main support (1), the sand screening trough (3) is placed above the mobile frame (2), and the front bottom or rear bottom of the sand screening trough (3) is rotatably connected to the side of the mobile frame (2), the main support (1) is provided with a driving mechanism for driving the mobile frame (2) to slide back and forth, and the bottom of the sand screening trough (3) is evenly distributed with sand screening holes.

2. The sand screening device for construction according to claim 1, characterized in that: The driving mechanism comprises: a spring (4), a motor (5), a driving wheel (6) and a rack (7); one of the left and right sides of the mobile frame (2) is connected to the main support (1) through the spring (4); the rack (7) is arranged on the side of the mobile frame (2) away from the spring (4); the length direction of both the rack (7) and the spring (4) is the same as the sliding direction of the mobile frame (2); driving teeth (601) are evenly distributed on a section of the circular arc on the outer circumference of the driving wheel (6); the circular arc is smaller than a semicircle; the motor (5) is fixed to the main support (1); the output shaft of the motor (5) is fixedly connected to the center of the driving wheel (6); and the driving teeth (601) are meshed with the rack (7).

3. The sand screening device for construction according to claim 1, characterized in that: Rollers are evenly distributed on the front and rear sides of the mobile frame (2), and horizontal slide rails (101) are provided on the front and rear sides of the main support (1). The mobile frame (2) is slidably connected to the slide rails (101) of the main support (1) via rollers.

4. The sand screening device for construction according to claim 1, characterized in that: A handle (8) is provided on an outer wall of the sand screening trough (3) at a side away from the rotation connection side.

5. The sand screening device for construction according to claim 1, characterized in that: The inner wall of the sand screening trough (3) located on the rotation connection side is provided with an inclined surface (9).

6. The sand screening device for construction according to claim 1, characterized in that: The main support (1) is provided with a material receiving hopper (10) below the movable frame (2).

7. The sand screening device for construction according to claim 1, characterized in that: A conical support platform (102) is provided at the bottom of the support foot of the main support (1).

8. The sand screening device for construction according to claim 7, characterized in that: The bottom of the conical support platform (102) is provided with an anti-slip pad.

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