CN216460087U

CN216460087U - Standard sieve convenient to change screen cloth

Info

Publication number: CN216460087U
Application number: CN202120485791.7U
Authority: CN
Inventors: 贾宏岩; 陈卫; 李郑心; 肖文武; 姜森; 孔蕾
Original assignee: China Construction Materials Industrial Geology Reconnaissance Center Liaoning General Tea
Current assignee: China Construction Materials Industrial Geology Reconnaissance Center Liaoning General Tea
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2022-05-10
Anticipated expiration: 2031-03-08

Abstract

The utility model belongs to the technical field of standard sieves, and particularly relates to a standard sieve convenient for replacing a screen, aiming at the problem that the screen is inconvenient to disassemble and replace and poor in use effect when the standard sieve in the prior art is used, the standard sieve comprises a first fixing ring, wherein a second fixing ring is movably arranged on the inner side of the first fixing ring, the screen is fixedly arranged in the second fixing ring, an annular groove is formed in the outer side of the first fixing ring, a rectangular rod is slidably connected to the top of the first fixing ring, the bottom end of the rectangular rod extends into the annular groove and is fixedly provided with a third fixing ring, a plurality of first springs are fixedly connected to the bottom of the third fixing ring, one ends of the first springs, far away from the third fixing ring, are fixedly connected to the inner wall of the bottom of the annular groove, and trapezoidal blocks are fixedly arranged on the inner walls of two sides of the third fixing ring. The screen cloth disassembling and replacing device is reasonable in structural design, simple to operate, convenient to disassemble and replace and use.

Description

Standard sieve convenient to change screen cloth

Technical Field

The utility model relates to the technical field of standard sieves, in particular to a standard sieve convenient for replacing a sieve mesh.

Background

The standard sieve is a sieve normalized according to a legal order. There are two types of mesh screens and plate screens. Typically made of brass, phosphor bronze or stainless steel. The meshes of the mesh screen are formed by weaving metal wires in a square shape, and the mesh screen is divided into a plurality of specifications according to the opening degree of the mesh holes or the diameters of the metal wires. The screen frame is cylindrical, and screens with the same diameter can be used in combination. The sieve is used for measuring the particle size distribution of powder materials and particle materials, and the standard sieve is used for measuring the particle size of the materials. Is the main tool for screening. It is composed of a set of 200mm diameter circular sieves which have certain proportion of mesh size, mesh width and mesh wire diameter and are manufactured according to the standard. The screening machine is provided with a cover and a bottom, and can be manually operated and also installed on the machine for screening. The layers are arranged from top to bottom according to the mesh size from large to small. The method is mainly used for measuring the composition of the granularity of materials with the granularity of less than 6 mm.

However, the standard sieve in the prior art is inconvenient to detach and replace the screen when in use, and has poor use effect, so that a standard sieve convenient for replacing the screen is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that a screen mesh of a standard sieve in the prior art is inconvenient to disassemble and replace and the use effect is poor when the standard sieve is used, and provides the standard sieve with the screen mesh convenient to replace.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a standard sieve convenient for replacing a screen comprises a first fixing ring, wherein a second fixing ring is movably mounted on the inner side of the first fixing ring, a screen is fixedly mounted in the second fixing ring, a ring groove is formed in the outer side of the first fixing ring, a rectangular rod is slidably connected to the top of the first fixing ring, the bottom end of the rectangular rod extends into the ring groove, a third fixing ring is fixedly mounted in the ring groove, a plurality of first springs are fixedly connected to the bottom of the third fixing ring, one ends of the first springs, far away from the third fixing ring, are fixedly connected to the inner wall of the bottom of the ring groove, trapezoidal blocks are fixedly mounted on the inner walls of the two sides of the third fixing ring, a plurality of second springs are fixedly connected to the inner walls of the two sides of the ring groove, two L-shaped plates are slidably connected to the ring groove, the two L-shaped plates are respectively and fixedly connected with the corresponding second springs, and clamping plates are fixedly mounted on the sides, far away from each other side of the two L-shaped plates, the gyro wheel is all installed in the one side that two cardboards kept away from each other, and two gyro wheels and the hypotenuse rolling contact of corresponding trapezoidal piece, two spread grooves have been seted up to the solid fixed ring's of second bottom, and equal fixed mounting has the fixture block on the one side inner wall that two spread grooves kept away from each other, and the top of two L templates extends to in the corresponding spread groove and with the top swing joint of corresponding fixture block.

Preferably, pull rings are fixedly mounted on two sides of the top of the second fixing ring, and a pressing plate is fixedly mounted at the top end of the rectangular rod, so that the operation and the use are convenient.

Preferably, the top of the first fixing ring is provided with a rectangular hole, and the rectangular rod is connected in the rectangular hole in a sliding manner, so that the rectangular rod is connected in a sliding manner conveniently.

Preferably, the inner walls of the two sides of the annular groove are fixedly provided with limiting rods, and the two L-shaped plates are connected to the outer sides of the corresponding limiting rods in a sliding mode and play a certain limiting role in limiting the two L-shaped plates.

Preferably, an opening is formed in one side, away from each other, of each clamping plate, a fixed shaft is fixedly mounted in each opening, and the two idler wheels are rotatably mounted on the outer sides of the corresponding fixed shafts and are convenient to rotate and mount.

Preferably, two openings are formed in the inner wall of the top of the annular groove, and the two L-shaped plates are located on the inner sides of the corresponding openings, so that the two L-shaped plates can be conveniently extended into the corresponding connecting grooves.

According to the standard sieve convenient for replacing the screen cloth, the rectangular rod is driven to move downwards by the pressing plate, so that the third fixing ring can be driven to move downwards by the rectangular rod and extrude a plurality of first springs, the two trapezoidal blocks can be driven to move downwards by the third fixing ring, the two trapezoidal blocks can be in rolling contact with the corresponding idler wheels through the two trapezoidal blocks, and the elastic deformation of the plurality of second springs can drive the two L-shaped plates to move close to each other and extrude the plurality of second springs, the fixing of the second fixing ring can be released randomly, and then the second fixing ring can be taken down through the two pull rings, so that the screen cloth can be replaced, the operation is simple, and the use is convenient;

the screen cloth disassembling and replacing device is reasonable in structural design, simple to operate, convenient to disassemble and replace and convenient to use.

Drawings

FIG. 1 is a schematic diagram of a standard screen with a screen panel that is easily replaced according to the present invention;

FIG. 2 is a schematic top view of a standard screen for facilitating screen replacement according to the present invention;

fig. 3 is a schematic structural diagram of a portion a of a standard screen facilitating screen replacement according to the present invention.

In the figure: 1. a first retaining ring; 2. a second retaining ring; 3. a pull ring; 4. screening a screen; 5. an annular groove; 6. a rectangular bar; 7. pressing a plate; 8. a third fixing ring; 9. a first spring; 10. a trapezoidal block; 11. a second spring; 12. an L-shaped plate; 13. clamping a plate; 14. a roller; 15. connecting grooves; 16. and (7) clamping blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a standard sieve convenient for replacing a screen, comprising a first fixing ring 1, a second fixing ring 2 movably mounted on the inner side of the first fixing ring 1, a screen 4 fixedly mounted in the second fixing ring 2, a ring groove 5 formed on the outer side of the first fixing ring 1, a rectangular rod 6 slidably connected to the top of the first fixing ring 1, a third fixing ring 8 fixedly mounted on the bottom of the rectangular rod 6 and extending into the ring groove 5, a plurality of first springs 9 fixedly connected to the bottom of the third fixing ring 8, a plurality of first springs 9 fixedly connected to the inner wall of the bottom of the ring groove 5, a trapezoidal block 10 fixedly mounted on the inner wall of the both sides of the third fixing ring 8, a plurality of second springs 11 fixedly connected to the inner wall of the both sides of the ring groove 5, two L-shaped plates 12 slidably connected to the ring groove 5, and two L-shaped plates 12 respectively fixedly connected to the corresponding second springs 11, two equal fixed mounting in one side that L template 12 kept away from each other has cardboard 13, one side that two cardboard 13 kept away from each other all rotates and installs gyro wheel 14, the hypotenuse rolling contact of two gyro wheels 14 and corresponding trapezoidal piece 10, two spread grooves 15 have been seted up to the bottom of the solid fixed ring 2 of second, equal fixed mounting has fixture block 16 on the one side inner wall that two spread grooves 15 kept away from each other, the top of two L templates 12 extend to in the corresponding spread groove 15 and with the top movable contact of corresponding fixture block 16.

The two sides of the top of the second fixing ring 2 are both fixedly provided with pull rings 3, the top end of the rectangular rod 6 is fixedly provided with a pressing plate 7 for convenient operation and use, the top of the first fixing ring 1 is provided with a rectangular hole, the rectangular rod 6 is connected in the rectangular hole in a sliding way for convenient sliding connection with the rectangular rod 6, the inner walls of the two sides of the annular groove 5 are both fixedly provided with a limiting rod, the two L-shaped plates 12 are connected at the outer sides of the corresponding limiting rods in a sliding way, play certain limiting displacement to two L templates 12, the opening has all been seted up to one side that two cardboard 13 kept away from each other, equal fixed mounting has the fixed axle in two openings, two gyro wheels 14 rotate and install the outside at corresponding fixed axle, be convenient for rotate two gyro wheels 14 of installation, two openings have been seted up on the top inner wall of ring channel 5, two L templates 12 are located corresponding open-ended inboard, be convenient for extend two L templates 12 to corresponding spread groove 15 in.

In the utility model, when the screen cloth replacing device is used, the pressing plate 7 can be pressed downwards to drive the rectangular rod 6 to move downwards, so that the rectangular rod 6 can drive the third fixing ring 8 to move downwards and extrude a plurality of first springs 9, so that the third fixing ring 8 can drive the two trapezoidal blocks 10 to move downwards, the two trapezoidal blocks 10 can be in rolling contact with the corresponding idler wheels 14, and the elastic deformation of the second springs 11 can drive the two L-shaped plates 12 to move close to each other and extrude a plurality of second springs 11, the fixation of the second fixing ring 2 can be released randomly, then the second fixing ring 2 can be taken down through the two pull rings 3, and the screen cloth can be replaced.

Claims

1. The standard sieve convenient for replacing the screen comprises a first fixing ring (1) and is characterized in that a second fixing ring (2) is movably mounted on the inner side of the first fixing ring (1), a screen (4) is fixedly mounted in the second fixing ring (2), a ring groove (5) is formed in the outer side of the first fixing ring (1), a rectangular rod (6) is slidably connected to the top of the first fixing ring (1), the bottom end of the rectangular rod (6) extends into the ring groove (5) and is fixedly provided with a third fixing ring (8), a plurality of first springs (9) are fixedly connected to the bottom of the third fixing ring (8), one ends, far away from the third fixing ring (8), of the first springs (9) are fixedly connected to the inner wall of the bottom of the ring groove (5), trapezoidal blocks (10) are fixedly mounted on the inner walls of the two sides of the third fixing ring (8), a plurality of second springs (11) are fixedly connected to the inner walls of the two sides of the ring groove (5), sliding connection has two L templates (12) in ring channel (5), two L templates (12) respectively with corresponding second spring (11) fixed connection, the equal fixed mounting in one side of keeping away from each other of two L templates (12) has cardboard (13), one side that two cardboard (13) kept away from each other all rotates and installs gyro wheel (14), the hypotenuse rolling contact of two gyro wheels (14) and corresponding trapezoidal piece (10), two spread groove (15) have been seted up to the bottom of the solid fixed ring of second (2), equal fixed mounting has fixture block (16) on the one side inner wall that two spread groove (15) kept away from each other, the top of two L templates (12) extend to in corresponding spread groove (15) and with the top swing joint of corresponding fixture block (16).

2. The standard screen convenient for screen replacement as claimed in claim 1, wherein both sides of the top of the second fixing ring (2) are fixedly provided with pull rings (3), and the top end of the rectangular rod (6) is fixedly provided with a pressing plate (7).

3. The standard screen convenient for screen replacement as claimed in claim 1, wherein the top of the first fixing ring (1) is provided with a rectangular hole, and the rectangular rod (6) is slidably connected in the rectangular hole.

4. The standard screen convenient for screen cloth replacement as claimed in claim 1, wherein the inner walls of both sides of the annular groove (5) are fixedly provided with limit rods, and the two L-shaped plates (12) are slidably connected with the outer sides of the corresponding limit rods.

5. The standard sieve convenient for replacing the sieve mesh of claim 1, wherein one side of each of the two clamping plates (13) away from each other is provided with a notch, a fixed shaft is fixedly arranged in each notch, and the two rollers (14) are rotatably arranged on the outer sides of the corresponding fixed shafts.

6. The standard screen convenient for screen replacement as claimed in claim 1, wherein the annular groove (5) has two openings on the top inner wall, and two L-shaped plates (12) are located inside the corresponding openings.