CN222568364U - A sand and gravel screening box - Google Patents

Abstract

The utility model discloses a sand screening box, which relates to the technical field of screening boxes and comprises a box body, wherein a push-pull opening is transversely formed in the bottom of one side surface of the box body, a bottom plate is arranged on the inner bottom surface of the box body in a sliding manner, one end of the bottom plate extends out of the push-pull opening, oscillating strip openings are formed in the upper end and the lower end of the rear end surface of the box body and the middle of the front end surface of the box body, and a connecting assembly is arranged in each oscillating strip opening. According to the utility model, the springs and the supporting plates on the inner side of the box body shake up and down through the weight of sand stones, so that the shaking of the filter screen plates is driven, the filtering efficiency is improved, the sand stones are classified according to the sizes through the three filter screen plates with different pore sizes, the screen plates can be respectively taken out through the sliding grooves of the three layers of screen plates, which screen plates can be used, the unused screen plates can be cleaned, the flexibility of the application of the screen plates is improved, the labor and time cost is reduced, and a lot of convenience is brought.

Description

Sand screening box

Technical Field

The utility model relates to the technical field of screening boxes, in particular to a sand screening box.

Background

Simple manual methods are used to screen sand. They may hold a piece of mesh material in their hands and shake it over the sand to leave larger particles behind, while smaller particles pass through the mesh. With the advent of the industrial revolution, the large-scale extraction and treatment of sand has required more efficient methods. Thus, mechanical sand screening boxes are beginning to be widely used in mines and construction sites. These mechanical devices typically consist of screens with different sized apertures through which sand passes to separate according to particle size.

Each sand screening box has its particular size range. For sand particles outside this range, the sieving effect may be poor or separation may not be accomplished. This means that in some applications screening boxes of a number of different particle size ranges are required, thereby increasing equipment costs and maintenance work. When the sand screening box is used for a long time, a certain amount of impurities and plugs are often accumulated on the screen. This results in reduced screening efficiency and requires periodic cleaning and maintenance, which can require downtime and additional labor and time costs. Therefore, improvement is required for the above problems.

Disclosure of utility model

The utility model aims to solve the defects in the prior art and provides a sand screening box.

The sand screening box comprises a box body, wherein a push-pull opening is transversely formed in the bottom of one side face of the box body, a bottom plate is arranged on the inner bottom face of the box body in a sliding mode, one end of the bottom plate extends out of the push-pull opening, a first sand falling opening is formed in the upper portion of the front end of the box body, a third sand falling opening is formed in the lower portion of the front end of the box body, a second sand falling opening is formed in the middle of the rear end of the box body, a first sieve plate with the outer end facing upwards is obliquely arranged in the first sand falling opening, a second sieve plate with the outer end facing upwards is obliquely arranged in the second sand falling opening, a third sieve plate with the outer end facing upwards is obliquely arranged in the second sand falling opening, oscillating strip openings are formed in the upper end and the lower end of the rear end of the box body and the middle of the front end of the box body, and connecting assemblies are arranged in the oscillating strip openings.

Preferably, the connecting component comprises a plurality of springs fixedly connected in the oscillating strip port at equal intervals and a supporting plate arranged in the oscillating strip port, and the top ends of the springs are fixedly connected with the bottom surface of the supporting plate.

Preferably, the lifting ends of the first sieve plate, the second sieve plate and the third sieve plate are fixedly connected with the supporting plate.

Preferably, the discharge ends of the first sieve plate, the second sieve plate and the third sieve plate are horizontally provided with a receiving plate, the inner end of the top surface of the receiving plate is provided with a fixing bolt, and the tops of the discharge ends of the first sieve plate, the second sieve plate and the third sieve plate are provided with threaded grooves in a matched mode.

Preferably, the inner walls of the two sides of the box body are provided with sliding grooves in a matched mode, wherein the sliding grooves are formed in the first sieve plate, the second sieve plate and the third sieve plate.

Preferably, the filter screen apertures of the first screen plate, the second screen plate and the third screen plate are gradually decreased from top to bottom.

Compared with the prior art, the sand filter has the beneficial effects that the spring and the supporting plate on the inner side of the box body shake up and down through the weight of sand stone, so that the shaking of the filter screen plate is driven, the filtering efficiency is improved, the sand stone is classified according to the sizes through the three filter screen plates with different pore diameters, the screen plates can be taken out respectively through the sliding grooves of the three layers of screen plates, which screen plates can be used can be selected, the unused screen plates can be cleaned, the flexibility of the application of the screen plates is improved, the labor and time cost is reduced, and a lot of convenience is brought.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of the front overall perspective structure of the present utility model;

FIG. 2 is a schematic view of the overall rear perspective of the present utility model;

FIG. 3 is a schematic rear view of the present utility model;

Fig. 4 is a schematic side sectional structure of the present utility model.

In the figure, the serial numbers are 1, the box body, 2, the bottom plate, 3, the receiving plate, 4, the fixing bolt, 5, the spring, 6, the supporting plate, 7, the first sieve plate, 8, the second sieve plate, 9, the third sieve plate, 10 and the chute.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, the sand screening box comprises a box body 1, wherein a push-pull opening is transversely formed in the bottom of one side face of the box body 1, a bottom plate 2 is arranged on the inner bottom face of the box body 1 in a sliding mode, filtered fine sand is received through the bottom plate 2, one end of the bottom plate 2 extends out of the push-pull opening, a first sand falling opening is formed in the upper portion of the front end of the box body 1, a third sand falling opening is formed in the lower portion of the front end of the box body 1, a second sand falling opening is formed in the middle of the rear end of the box body 1, the filter screen plate can be conveniently taken out through the formed sand falling openings, a first screen plate 7 with the outer end upwards is obliquely arranged in the first sand falling opening, a second screen plate 8 with the outer end upwards is obliquely arranged in the second sand falling opening, a third screen plate 9 with the outer end upwards is obliquely arranged in the second sand falling opening, different sizes of sand is conveniently filtered through the first screen plate 7, the second screen plate 8 and the third screen plate 9, vibration strip assemblies are arranged in the middle of the box body 1, and each vibration strip screen plate assembly is arranged in the middle of the box body. The connecting component comprises a plurality of springs 5 fixedly connected in the oscillating strip port at equal intervals and a supporting plate 6 arranged in the oscillating strip port, the filter screen can be conveniently and well filtered by shaking the springs 5, the filter plate can be supported by the supporting plate 6 and can be uniformly shaken, and the top ends of the springs 5 are fixedly connected with the bottom surface of the supporting plate 6.

In the utility model, the lifting ends of the first sieve plate 7, the second sieve plate 8 and the third sieve plate 9 are fixedly connected with the supporting plate 6. The sand filter comprises a box body 1, a first sieve plate 7, a second sieve plate 8 and a third sieve plate 9, wherein the discharge ends of the first sieve plate 7, the second sieve plate 8 and the third sieve plate 9 are horizontally provided with a receiving plate 3, sand filtered by different filter screens is conveniently received through the receiving plate 3, the inner end of the top surface of the receiving plate 3 is provided with a fixing bolt 4, the receiving plate 3 is fixed on the box body 1 through the fixing bolt 4, and the tops of the discharge ends of the first sieve plate 7, the second sieve plate 8 and the third sieve plate 9 are provided with threaded grooves in cooperation with the fixing bolt 4. The chute 10 has all been seted up to cooperation first sieve 7, second sieve 8 and third sieve 9 on the both sides inner wall of box 1, is convenient for spring 5 rocks the filter through chute 10. The filter screen apertures of the first sieve plate 7, the second sieve plate 8 and the third sieve plate 9 are gradually decreased from top to bottom.

When the sand and gravel box is used, sand and gravel are poured from the upper part of the box body 1 and fall onto the first sieve plate 7, pressure is generated on the first sieve plate 7 to press the spring 5, the spring 5 can shake up and down to drive the supporting plate 6 to shake up and down, so that the first sieve plate 7 shakes up and down in the sliding groove 10, the filtering efficiency is improved, sand and gravel filtered by the first sieve plate 7 falls onto the second sieve plate 8, the two-layer filtering efficiency is improved, sand and gravel filtered by the second sieve plate 8 falls onto the third sieve plate 9, the three-layer filtering efficiency is improved, finally sand and gravel which does not fall from the first sieve plate 7, the second sieve plate 8 and the third sieve plate 9 can roll onto the receiving plate 3 at the position, and fine sand filtered out falls onto the bottom plate 2.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. A sand and gravel screening box, comprising a box body (1), characterized in that: a push-pull opening is transversely opened at the bottom of one side of the box body (1), a bottom plate (2) is slidably arranged on the inner bottom surface of the box body (1), and one end of the bottom plate (2) extends out of the push-pull opening; a first sand falling opening is opened at the upper front end of the box body (1), a third sand falling opening is opened at the lower front end of the box body (1), and a second sand falling opening is opened at the middle rear end of the box body (1); a first sieve plate (7) with an outer end facing upward is obliquely arranged in the first sand falling opening, a second sieve plate (8) with an outer end facing upward is obliquely arranged in the second sand falling opening, and a third sieve plate (9) with an outer end facing upward is obliquely arranged in the second sand falling opening; oscillation strip openings are opened at the upper and lower ends of the rear end surface of the box body (1) and the middle of the front end surface of the box body (1), and a connecting component is arranged inside each of the oscillation strip openings. 2. A sand and gravel screening box according to claim 1, characterized in that: the connecting assembly comprises a plurality of springs (5) equidistantly fixed in the oscillating strip opening and a support plate (6) arranged inside the oscillating strip opening, and the top end of the spring (5) is fixed to the bottom surface of the support plate (6). 3. A sand and gravel screening box according to claim 1, characterized in that the lifting ends of the first screen plate (7), the second screen plate (8) and the third screen plate (9) are all fixedly connected to the supporting plate (6). 4. A sand and gravel screening box according to claim 3, characterized in that: the discharge ends of the first sieve plate (7), the second sieve plate (8) and the third sieve plate (9) are all horizontally installed with a receiving plate (3), the inner end of the top surface of the receiving plate (3) is provided with a fixing bolt (4), and the tops of the discharge ends of the first sieve plate (7), the second sieve plate (8) and the third sieve plate (9) are all provided with a threaded groove to cooperate with the fixing bolt (4). 5. A sand and gravel screening box according to claim 4, characterized in that: sliding grooves (10) are provided on the inner walls on both sides of the box body (1) to cooperate with the first sieve plate (7), the second sieve plate (8) and the third sieve plate (9). 6. A sand and gravel screening box according to claim 5, characterized in that the filter mesh apertures of the first sieve plate (7), the second sieve plate (8) and the third sieve plate (9) decrease successively from top to bottom.