CN218902550U - Portable grit material screening instrument - Google Patents

Abstract

The utility model relates to the field of highway construction auxiliary tools, in particular to a portable sand and stone screening tool. The portable sand and stone screening tool comprises a grip and a shovel head arranged at one end of the grip, wherein the shovel head comprises a frame and a screen, the frame is a door with an opening at the lower end, a sleeve is fixed at the top of the frame and used for connecting the grip, and the bottom of the grip is inserted into the sleeve; the screen cloth is provided with the frame all around, and the screen cloth can be dismantled and connect in the frame of door type, and the inboard of the left and right sides limit of frame has the card rail, and the left and right sides limit joint of screen cloth is on the card rail, and different mesh sizes can be changed to the screen cloth on the frame.

Description

Portable grit material screening instrument

Technical Field

The utility model relates to the field of highway construction auxiliary tools, in particular to a portable sand and stone screening tool.

Background

The grit material that uses in the building site construction need carry out simple screening before using, screen out the massive grit piece that the particle diameter exceeds standard, then can only be used for making concrete. The sand and stone screening is generally carried out by supporting a large screen beside a material pile, then a worker shovels the sand and stone on the screen, the leaked part is qualified in particle size, and the part left by the screen is unqualified. The working mode is high in efficiency and suitable for larger stockpiles.

However, in highway construction, the sand material is a plurality of small piles disposed along the way along the highway. When the material pile is screened, the screen is required to be newly supported every time, and the material pile is required to be transported to the next material pile after the material pile is used, so that the operation is very complicated.

Disclosure of Invention

The utility model discloses a portable sand and stone screening tool.

The technical problems to be solved are as follows: in road construction, a large number of smaller sand and stone piles disposed along the road are rapidly screened.

In order to solve the technical problems, the portable sand and stone screening tool provided by the utility model adopts the following scheme.

The portable sand and stone screening tool is characterized by comprising a handle and a shovel head arranged at one end of the handle, wherein the shovel head comprises a frame and a screen, the frame is a door-shaped structure with an opening at the lower end, a sleeve is fixed at the top of the frame and used for connecting the handle, and the bottom of the handle is inserted into the sleeve; the screen cloth is provided with the frame all around, and the screen cloth can be dismantled and connect in the frame of door type, and the inboard of the left and right sides limit of frame has the card rail, and the left and right sides limit joint of screen cloth is on the card rail, and different mesh sizes can be changed to the screen cloth on the frame.

Preferably, the frame has baffles perpendicular to the plane of the screen on the left and right sides and the periphery of the top.

Preferably, the top edge of the screen frame is provided with a screw which is fixedly connected with the frame.

Preferably, the screen is rectangular, and the left side and the right side of the frame of the screen are parallel to each other.

Preferably, the frame is a shovel head, and the middle part of the catalpa bungei is removed to form the frame.

Preferably, the bottom edge of the frame of the screen is flush with the bottom of the frame, and the bottom edge of the frame of the screen is edged.

Preferably, the grip is made of wood, and the frame is made of metal; the frame of the screen is rectangular and is a metal plate, and the metal plate is parallel to the screen.

Compared with the prior art, the portable sand and stone screening tool has the following beneficial effects: the screen cloth that the previous construction was used to sieve sand stone material heap is heavier, and he is fixed subaerial with the support slope, then the workman directly throws the sand stone material back on the screen cloth. But the piles in highway construction are very small, and the screen needs to be re-supported every time, which is troublesome.

The technical scheme of the utility model can be easily carried by hand like a common spade, when the spade is used, the spade head is directly used for scooping the materials on the material pile, then a worker shakes the whole screening tool, so that the materials meeting the requirements can leak from the screen, and the unqualified materials can be left in the spade head and then are directly thrown aside. The tool is simple to use and convenient to carry, and is suitable for sieving a large number of small sand and stone piles.

Drawings

FIG. 1 is an elevation view of a portable sand screening tool of the present utility model in a vertical position;

FIG. 2 isbase:Sub>A cross-sectional view of A-A of FIG. 1;

fig. 3 is an enlarged view at a in fig. 2.

Reference numerals illustrate: 1-handle, 2-frame, 2 a-baffle, 3-screen, 3 a-frame, 4-screw and 5-sleeve.

Detailed Description

The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.

In the present utility model, unless otherwise indicated, terms of orientation such as "up, down, left, right" are used to refer generally to up, down, left, right as shown with reference to fig. 1; "inner and outer" means inner and outer relative to the contour of the respective parts themselves. The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to solve the problem of how to screen a large number of small sand and stone piles arranged along a road quickly during road construction, the present utility model proposes a portable sand and stone screening tool as shown in figures 1 and 2,

the portable sand and stone screening tool comprises a handle 1 and a shovel head arranged at one end of the handle 1, wherein the shovel head comprises a frame 2 and a screen 3, the frame 2 is a door-shaped structure with an opening at the lower end, a sleeve 5 is fixed at the top of the frame 2 and used for connecting the handle 1, and the bottom of the handle 1 is inserted into the sleeve 5; the screen cloth 3 is provided with frame 3a all around, and screen cloth 3 can dismantle the connection in the frame 2 of door type, and the inboard of the left and right sides limit of frame 2 has the card rail, and the left and right sides limit joint of screen cloth 3 is on the card rail, and the screen cloth 3 on the frame 2 can change different mesh sizes.

The grip 1 is a rod for gripping, and only needs to have enough strength, the material can be determined according to practical situations, and can be a steel pipe or a wood, and the grip 1 is preferably made of wood. The frame 2 of the shovel head, as shown in figure 1, has the main function of supporting the screen 3 while connecting the grip 1, and can be made of sheet metal welded, the frame 2 comprising left and right sides and a top side, the frame 2 surrounding the screen 3 from the top and left and right halves. The screen 3 is provided with a frame 3a around the screen 3 in order to maintain the shape, the screen 3 itself is relatively free in appearance, the preferred screen 3 is provided along the frame 2 according to the shape of the frame 2, and the bottom edge of the screen 3 needs to be horizontal to facilitate insertion of the bottom of the screen 3 into the sand. And the screen 3 is detachably mounted on the frame 2, and the screen 3 can be replaced differently according to circumstances or quickly after the screen 3 is damaged.

Specifically, as shown in fig. 3, the left and right sides of the frame 3a are provided with clamping grooves, and then the side edges of the screen 3 are clamped into the clamping grooves. Meanwhile, a screw 4 is arranged at the top edge of the frame 3a of the screen 3, and the screw 4 is fixedly connected with the frame 3 a. The screen 3 can be firmly mounted on the frame 2 by the screws 4, and the screws 4 can be unscrewed to facilitate replacement of the screen 3. The screen 3 is rectangular, and the left side and the right side of the frame 3a of the screen 3 are parallel to each other. This facilitates the mounting of the screen 3 into the clamping rail of the frame 2 while simplifying the manufacture of the screen 3.

As shown in fig. 1, the outer circumferences of the left and right sides and the top of the frame 2 have baffles 2a perpendicular to the plane of the screen 3. The baffle plate 2a can be used for holding the sand and stones in the shovel head, so that the sand and stones are prevented from falling from the side edges.

Preferably, the frame 2 of the screening tool of the present utility model is a shovel head, and the middle part of the catalpa bungei is removed to form the frame 2. Thus, the shovel can be manufactured by simple modification. Meanwhile, if the frame 2 is a shovel head, the clamping rail can be changed to the outer sides of the left side edge and the right side edge of the frame 3a of the screen 3, and then the inner edge of the shovel is clamped on the frame 3a of the screen 3.

The bottom edge of the frame 3a of the screen 3 is flush with the bottom of the frame 2, and the bottom edge of the frame 3a of the screen 3 is edged. Facilitating the insertion of the screen 3 into the sand.

The handle 1 is made of wood, and the frame 2 is made of metal; the frame 3a of the screen 3 is rectangular and is a metal plate, and the metal plate is parallel to the screen 3.

The above examples are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.

Claims (7)

1. The portable sand and stone screening tool is characterized by comprising a grip (1) and a shovel head arranged at one end of the grip (1), wherein the shovel head comprises a frame (2) and a screen (3), the frame (2) is a door-shaped structure with an opening at the lower end, a sleeve (5) is fixed at the top of the frame (2) and used for connecting the grip (1), and the bottom of the grip (1) is inserted into the sleeve (5);

the screen cloth (3) is provided with frame (3 a) all around, and in frame (2) of door-type was connected can be dismantled to screen cloth (3), the inboard of the left and right sides limit of frame (2) had the card rail, and the left and right sides limit joint of screen cloth (3) is on the card rail, and different mesh sizes can be changed to screen cloth (3) on frame (2).

2. A portable sand screening tool according to claim 1, characterized in that the outer periphery of the left and right sides and the top of the frame (2) has baffles (2 a) perpendicular to the plane of the screen (3).

3. The portable sand screening tool according to claim 1, wherein the top edge of the frame (3 a) of the screen (3) is provided with a screw (4), and the screw (4) is fixedly connected with the frame (3 a).

4. A portable sand screening tool according to claim 1, characterized in that the screen (3) is rectangular, the left and right sides of the rim (3 a) of the screen (3) being parallel to each other.

5. A portable sand screening tool according to claim 1, characterized in that the frame (2) is a shovel head and that the middle part of the choker is removed to form the frame (2).

6. A portable sand screening tool according to claim 1, wherein the bottom edge of the rim (3 a) of the screen (3) is flush with the bottom of the frame (2), and the bottom edge of the rim (3 a) of the screen (3) is sharpened.

7. The portable sand screening tool according to claim 1, wherein the grip (1) is made of wood and the frame (2) is made of metal;

the frame (3 a) of the screen (3) is rectangular and is a metal plate, and the metal plate is parallel to the screen (3).

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