CN211937799U - Multistage screening plant of sand for municipal construction - Google Patents

Abstract

The utility model discloses a municipal construction field's a multistage screening plant of sand for municipal construction, including the screening case, the opening has all been seted up at screening case top center and bottom center, square annular has been seted up on the screening incasement wall, be fixed with the spring on the square annular inslot wall top, square annular inslot wall bottom fixed has lower spring, the last spring bottom fixed has the top board, the spring top is fixed with down the roof down, it is connected with the gag lever post to rotate on the screening case lateral wall, install screening mechanism between top board and the roof down, screening mechanism is including deckle board and sieve, the mounting groove has been seted up at deckle board medial surface center, mounting groove internally mounted has the vibrator, the edge is provided with the piston plate in square annular top and the bottom, the flexible swing joint of piston plate has the mainboard.

Description

Multistage screening plant of sand for municipal construction

Technical Field

The utility model relates to a municipal administration construction field specifically is a multistage screening plant of sand for municipal construction.

Background

The municipal engineering refers to municipal facility construction engineering. In China, municipal facilities refer to various buildings, structures, equipment and the like which are arranged in planning and construction ranges of urban areas and towns and provide paid or unpaid public products and services for residents based on government responsibilities and obligations. The supporting various public infrastructure construction of city life all belongs to the municipal works category, in the municipal works work progress, the sand is one of the most commonly used building material, because municipal construction technical specification's requirement, different construction process needs the sand of different particle sizes, consequently, need sieve the processing to the sand, current sand screening mode adopts artifical screening mostly, sieve husky process amount of labour is big, intensity of labour is higher, the screening effect of sieve is relatively poor simultaneously, efficiency is lower, can not satisfy actual construction requirement.

At present, Chinese patent with application number CN201721177194.8 discloses a sand multistage screening device for municipal construction, which comprises a box body, wherein a collecting basket is fixedly arranged at the bottom of the inner side of the box body, and return springs are connected between the right end of an upper screen plate and the inner side wall of the box body and between a lower screen plate and the inner side wall of the box body; a sliding rod penetrates through the extension plate in a vertical sliding manner, a roller is rotatably arranged at the top end of the sliding rod, a screening barrel is arranged on the rotating shaft, and a plurality of comb teeth are arranged on the surface of the rotating shaft at equal intervals; the surface of the screening barrel is of a net structure, a first sector gear matched with the first outer gear ring is arranged on the first driven shaft, and a second sector gear matched with the second outer gear ring is arranged on the second driven shaft; the utility model relates to a rationally, the sand has passed through screening bucket, upper screen plate and lower sieve plate, finally realizes the tertiary screening of sand, obtains the sand of three kinds of different particle diameters, and the broach is combed the sand in the screening bucket along with rotation of rotation, has improved the loose degree of sand, has improved the screening effect, and sand screening efficiency is higher. However, when the device is used for municipal engineering sand multi-stage screening, the screened sand is inconvenient to discharge, the mounting and replacement of the screen plate are inconvenient, and the grade of screening cannot be adjusted. Based on this, the utility model designs a sand multi-stage screening device for municipal construction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sand multi-stage screening device for municipal construction to when solving the use the device that provides in the above-mentioned background and carrying out municipal works sand multi-stage screening, the discharge of the sand after the screening is not convenient for, the installation and the change of the sieve of being not convenient for simultaneously, can't carry out the problem of adjusting to the grade of screening moreover.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a multistage screening plant of sand for municipal construction, includes the screening case, the opening has all been seted up at screening case top center and bottom center, square annular has been seted up on the screening incasement wall, be fixed with the spring on the square annular inner wall top, square annular inner wall bottom mounting has down the spring, it has the top board to go up the spring bottom mounting, the spring top is fixed with down the roof down, it is connected with the gag lever post to rotate on the screening case lateral wall, install screening mechanism between top board and the roof down, screening mechanism is including deckle board and sieve, the mounting groove has been seted up at deckle board medial surface center, mounting groove internally mounted has the vibrator, the inboard edge in square annular top and bottom is provided with the piston plate, the flexible swing joint of piston plate has the mainboard.

Preferably, two opposite surfaces of the square ring grooves penetrate through two opposite side walls of the screening box, the depth of the other two opposite surfaces of the square ring grooves is smaller than the thickness of the other two opposite side walls of the screening box, and the square ring grooves are arranged in the center of the screening box at three groups at equal intervals.

Preferably, go up the total three groups of and equidistant setting of spring and run through the inner wall top center department of screening case lateral wall at square ring groove, the total three groups of and equidistant setting of spring is in the inner wall bottom center department of square ring groove through screening case lateral wall down, the size of a dimension of going up spring and spring down is the same.

Preferably, the length of the upper pressing plate and the lower top plate is equal to the length of the square ring groove penetrating through the side wall part of the screening box, and the heights of the upper pressing plate and the lower top plate are the same.

Preferably, the length of gag lever post is greater than the degree of depth of square annular, gag lever post table wall is the friction surface, gag lever post table wall and screening case lateral wall contact, the horizontal cross-section shape size of deckle board equals the shape size of the horizontal cross-section of square annular.

Preferably, the length of mainboard equals the width of square annular groove, the length of piston plate slightly is less than the width of square annular groove, the piston plate top is fixed on square annular groove top, mainboard and square annular inner wall sliding contact.

Compared with the prior art, the beneficial effects of the utility model are that: the screening mechanism can be inserted and fixed in the square ring groove by arranging the square ring groove, the upper spring, the lower spring, the upper pressing plate and the lower top plate, and is elastically fixed by utilizing the upper spring, the lower spring, the upper pressing plate and the lower top plate, so that when sieve plates with different apertures need to be replaced, the screening mechanism is convenient to replace and adjust, the screening grade is convenient to adjust, and meanwhile, after screening is completed, only the screening mechanism needs to be drawn out, and unqualified sand is convenient to discharge; by arranging the piston plate and the main plate, the sand can be effectively prevented from leaking from the square ring groove gap in the screening process.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings described below are only examples of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the screening box of the present invention;

FIG. 3 is an enlarged schematic view of part A of the present invention;

FIG. 4 is a schematic sectional view of the present invention;

fig. 5 is an enlarged schematic view of the part B of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-screening box, 2-port, 3-square ring groove, 40-upper spring, 41-lower spring, 50-upper pressing plate, 51-lower top plate, 6-limiting rod, 7-frame plate, 8-mounting groove, 9-vibrator, 10-screen plate, 11-piston plate and 12-main plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the examples of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

as shown in figures 1, 2 and 3, the sand multistage screening device for municipal construction comprises a screening box 1, wherein the top center and the bottom center of the screening box 1 are both provided with through holes 2, the inner wall of the screening box 1 is provided with square ring grooves 3, two opposite sides of the square ring grooves 3 penetrate through two opposite side walls of the screening box 1, the depth of the other two opposite sides of the square ring grooves 3 is smaller than the thickness of the other two opposite side walls of the screening box 1, three groups of square ring grooves 3 are arranged at the center of the screening box 1 at equal intervals, the top ends of the inner walls of the square ring grooves 3 are fixedly provided with upper springs 40, the bottom ends of the inner walls of the square ring grooves 3 are fixedly provided with lower springs 41, the three groups of the upper springs 40 are arranged at the top center of the inner walls of the square ring grooves 3 penetrating through the side walls of the screening box 1, the three groups of the lower springs 41 are arranged at the bottom center of the inner walls of the square ring grooves 3 penetrating through, an upper pressing plate 50 is fixed at the bottom end of the upper spring 40, a lower top plate 51 is fixed at the top end of the lower spring 41, the lengths of the upper pressing plate 50 and the lower top plate 51 are equal to the length of the square ring groove 3 penetrating through the side wall part of the screening box 1, the heights of the upper pressing plate 50 and the lower top plate 51 are the same, a limiting rod 6 is rotatably connected to the side wall of the screening box 1, the length of the limiting rod 6 is larger than the depth of the square ring groove 3, the surface wall of the limiting rod 6 is a friction surface, the surface wall of the limiting rod 6 is in contact with the side wall of the screening box 1, the screening mechanism can be inserted and fixed in the square ring groove 3 by arranging the square ring groove 3, the upper spring 40, the lower spring 41, the upper pressing plate 50 and the lower top plate 51 for elastic fixation, when the screening plates 10 with different apertures need to be replaced, the screening mechanism is convenient to replace;

as shown in fig. 4 and 5, a screening mechanism is installed between the upper pressing plate 50 and the lower top plate 51, the screening mechanism includes a frame plate 7 and a sieve plate 10, the horizontal cross section of the frame plate 7 is equal to the horizontal cross section of the square ring groove 3, a mounting groove 8 is formed in the center of the inner side surface of the frame plate 7, a vibrator 9 is installed inside the mounting groove 8, piston plates 11 are arranged on the top end and the inner side edge of the bottom end of the square ring groove 3, the piston plates 11 are telescopically and movably connected with a main plate 12, the length of the main plate 12 is equal to the width of the square ring groove 3, the length of the piston plate 11 is slightly smaller than the width of the square ring groove 3, the top end of the piston plate 11 is fixed on; by arranging the piston plate 11 and the main plate 12, the sand can be effectively prevented from leaking from the square ring groove gap in the screening process.

One specific application of this embodiment is: the sand that treats to sieve gets into screening case 1 from opening 2 above screening case 1 and sieves, sieve through the screening mechanism in screening case 1, sieve through the screening mechanism that three group's bore difference sieve 10 constitutes in proper order and carry out multistage screening, in-process vibrator 9 vibrates sieve 10, improve the screening effect, the existence of going up spring 40 and lower spring 41 can cushion screening mechanism simultaneously, cause great impact to sieve 10 when avoiding the sand to fall down, discharge through hole 2 below at last, when needing to adjust the screening grade, only need change gag lever post 6 to the horizontality, release screening mechanism, change the screening mechanism that sieve 10 of corresponding bore constitute can, the operation of being convenient for, after the screening is accomplished, release screening mechanism from bottom to top in proper order, collect the sand of different grades respectively.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (6)

1. The utility model provides a multistage screening plant of sand for municipal construction, includes screening case (1), its characterized in that: the screening box is characterized in that the top end center and the bottom end center of the screening box (1) are respectively provided with a through hole (2), a square ring groove (3) is formed in the inner wall of the screening box (1), an upper spring (40) is fixed on the top end of the inner wall of the square ring groove (3), a lower spring (41) is fixed on the bottom end of the inner wall of the square ring groove (3), an upper pressing plate (50) is fixed at the bottom end of the upper spring (40), a lower top plate (51) is fixed at the top end of the lower spring (41), a limiting rod (6) is rotatably connected to the side wall of the screening box (1), a screening mechanism is installed between the upper pressing plate (50) and the lower top plate (51) and comprises a frame plate (7) and a sieve plate (10), a mounting groove (8) is formed in the center of the inner side surface of the frame plate (7), a vibrator (9) is installed inside the mounting groove (8), the piston plate (11) is flexibly connected with a main plate (12).

2. The sand multistage screening device for municipal construction according to claim 1, wherein: the two opposite surfaces of the square ring grooves (3) penetrate through two opposite side walls of the screening box (1), the depth of the other two opposite surfaces of the square ring grooves (3) is smaller than the thickness of the other two opposite side walls of the screening box (1), and the square ring grooves (3) are arranged in the center of the screening box (1) in three groups at equal intervals.

3. The sand multistage screening device for municipal construction according to claim 2, wherein: go up total three groups of and equidistant setting of spring (40) and run through the inner wall top center department of screening case (1) lateral wall in square ring groove (3), the total three groups of and equidistant setting of lower spring (41) runs through the inner wall bottom center department of screening case (1) lateral wall in square ring groove (3), it is the same with the size of a dimension of lower spring (41) to go up spring (40).

4. The sand multistage screening device for municipal construction according to claim 2, wherein: the length of the upper pressing plate (50) and the length of the lower top plate (51) are equal to the length of the square ring groove (3) penetrating through the side wall part of the screening box (1), and the heights of the upper pressing plate (50) and the lower top plate (51) are the same.

5. The sand multistage screening device for municipal construction according to claim 1, wherein: the length of gag lever post (6) is greater than the degree of depth of square annular groove (3), gag lever post (6) table wall is the friction surface, gag lever post (6) table wall and screening case (1) lateral wall contact, the horizontal cross-section shape size of framed lamella (7) equals the horizontal cross-section's of square annular groove (3) shape size.

6. The sand multistage screening device for municipal construction according to claim 2, wherein: the length of mainboard (12) equals the width of square annular groove (3), the length of piston board (11) slightly is less than the width of square annular groove (3), piston board (11) top is fixed on square annular groove (3) top, mainboard (12) and square annular groove (3) inner wall sliding contact.

Images