CN210080052U - Miniature multi-diameter screening sample separating sieve - Google Patents

Abstract

The utility model discloses a miniature many diameters screening divides appearance sieve, the power distribution screen comprises a screen cloth, the screen cloth is including containing more than 2, and every screen cloth aperture is not of uniform size, the screen cloth passes through connecting device from the top down and links together, and screen cloth aperture from the top down reduces in proper order, and two adjacent screen cloth intercommunication, the solid sample that falls out from upper portion screen cloth mesh are owing to receive on the gravity energy directly falls adjacent lower part screen cloth. The problem that different diameter samples can not be screened simultaneously in screening samples in the existing laboratory is solved.

Description

Miniature multi-diameter screening sample separating sieve

Technical Field

The utility model relates to the field of mechanical equipment, especially, relate to a miniature many diameters screening divides appearance sieve.

Background

Most of the existing miniature multi-diameter screening and sample separating sieves belong to large instruments used in large-scale factories, have large occupied area and are expensive, and are not suitable for screening small-batch samples. The miniature multi-diameter screening and sample separating sieve suitable for laboratories adopts original manual grinding, and then is suitable for a sieve to screen samples with suitable diameters. Many times, the laboratory need gather the sample screening thing of same sample different diameters simultaneously, work is fairly loaded down with trivial details in this time, the work flow is the grinding sample earlier, then be suitable for major diameter sieve screening sample and obtain the major diameter sample, then use the sieve screening sample of a little bit less than the diameter, so on and so on through using the more and more samples of different diameters of sieve acquisition that the diameter is littleer in proper order, but this work is not going on simultaneously, need screen the sample of major diameter earlier and just can carry out the screening of minor diameter sample, with this waste time and energy considerably.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the utility model provides a miniature many diameters screening divides appearance sieve to solve the problem that current laboratory screening sample can not carry out the screening of different diameter samples simultaneously.

The technical scheme of the utility model is that: the utility model provides a miniature many diameters screening divides appearance sieve, includes the screen cloth, the screen cloth is including containing more than 2, and every screen cloth aperture size is different, the screen cloth passes through connecting device from the top down and links together, and screen cloth aperture from the top down reduces in proper order, and intercommunication between two adjacent screen cloths, the solid sample that falls out from the mesh of upper portion screen cloth owing to receive the gravitational energy directly on falling adjacent lower part screen cloth.

The connecting device is a cylinder.

The outer surface is equipped with the external screw thread about the connecting device, and screen cloth outward flange fixed connection is at installation cover internal surface middle part, and the installation cover is cylindric, and the internal surface is equipped with the internal thread that matches with connecting device surface external screw thread about the installation cover.

And sealing rings are arranged on the edges of the upper surface and the lower surface of the screen.

The upper part of the uppermost layer of the screen mesh is provided with a grinder, the outlet of the grinder is communicated with the uppermost layer of the screen mesh, and a sample falling from the outlet of the grinder can directly fall on the uppermost layer of the screen mesh due to the gravity.

The miniature multi-diameter screening and sample separating sieve further comprises a base, the base is an iron plate with the length and width larger than the diameter of the mounting sleeve, and the base is fixedly connected to the lower portion of the lowest layer of the sieve screen through the mounting sleeve.

The base is fixedly connected with a vibrator.

The miniature multi-diameter screening and sample separating sieve further comprises a resonator, the resonator comprises a resonance disc and a spring, the resonance disc is a rectangular iron plate matched with the base in size, one end of the spring is fixedly connected with the upper portion of the resonance disc, the other end of the spring is fixedly connected to the lower surface of the base, and the natural frequency of the spring is the same as that of the vibrator.

The number of the springs is at least 4, and the springs are symmetrically distributed on 4 corners of the resonance disc.

The utility model has the advantages that:

compared with the prior art, the utility model discloses passing through connecting device from the top down with the screen cloth and linking together, screen cloth aperture from the top down reduces in proper order, and intercommunication between two adjacent screen cloths makes on the solid sample that falls out from upper portion screen cloth mesh directly falls to adjacent lower part screen cloth owing to receiving the gravitational energy the utility model discloses can filter the sample of different diameters simultaneously, the screening efficiency is high, labour saving and time saving.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a perspective view of the screening device of the present invention;

fig. 3 is a perspective view of the connecting device of the present invention;

fig. 4 is a perspective view of a resonator of the present invention;

in the figure: 1 screener, 101 screen, 102 mounting sleeve, 103 sealing ring, 2 attachment, 3 grinder, 4 base, 5 resonator, 501 resonator disc, 502 spring, 6 vibrator.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

referring to fig. 1 to 4, a miniature multi-diameter screening and sample classifying screen comprises screen meshes 101, wherein the screen meshes 101 comprise more than 2 screen meshes, the size of each screen mesh 101 is different, the screen meshes 101 are connected together from top to bottom through a connecting device 2, the size of each screen mesh 101 is reduced from top to bottom, two adjacent screen meshes 101 are communicated, and a solid sample falling from the mesh of the upper screen mesh 101 can directly fall on the lower screen mesh 101 due to the gravity. When the screening machine is used, a sample is ground, the sample with the largest diameter is screened out through the large-diameter screen 101 on the uppermost layer, then the sample leaked from the mesh of the large-diameter screen 101 is mechanically screened by the small-diameter screen 101, the sample with the small diameter is screened out, and by analogy, the samples with different diameters can be simultaneously screened out, so that the screening efficiency is improved, and the samples can be screened on the screen 101 by shaking hands or other modes during screening.

The connecting device 2 is a cylinder. The cylinder can shield the sample therein, and prevent the sample from falling to the outside.

The upper and lower outer surfaces of the connecting device 2 are provided with external threads, the outer edge of the screen 101 is fixedly connected to the middle part of the inner surface of the mounting sleeve 102, the mounting sleeve 102 is cylindrical, and the upper and lower inner surfaces of the mounting sleeve 102 are provided with internal threads matched with the external threads on the outer surface of the connecting device 2. Through the screw thread installation for screen cloth 101 is dismantled conveniently, directly rotates connecting device 2 and installation cover 102 and takes out screen cloth 101 after the screening, and the good sample of screening can be conveniently taken.

The edge of the upper surface and the lower surface of the screen 101 is provided with a sealing ring 103. Sealing ring 103 can be elastic substance such as rubber circle, plays sealed effect and avoids the sample to leak, simultaneously because the elasticity of sealing ring 103 makes the internal thread on sealing ring 103 and the contact force between the external screw thread on connecting device 2 bigger for frictional force increases, avoids sealing ring 103 to drop with connecting device 2 easily. The screen 101, the mounting sleeve 102 and the sealing ring 103 together constitute the screen 1.

The upper part of the uppermost layer of the screen 101 is provided with a grinder 3, the outlet of the grinder 3 is communicated with the uppermost layer of the screen 101, and the sample falling from the outlet of the grinder 3 can directly fall on the uppermost layer of the screen 101 due to the gravity. The grinder 3 can be electric or manual, and the feeding is automatic and the grinding is more convenient and rapid by adding the grinder 3. The specific structure of the grinding mill 3 can adopt the prior art with patent number CN 108097426 a.

The miniature multi-diameter screening and sample separating sieve also comprises a base 4, wherein the base 4 is an iron plate with the length and width larger than the diameter of the mounting sleeve 102, and the base 4 is fixedly connected to the lower part of the lowest layer of the sieve cloth 101 through the mounting sleeve 102. The base 4 can stabilize the screen 101 due to its own weight.

The base 4 is fixedly connected with a vibrator 6. The vibration of during operation vibrator 6 drives the base vibration, and base 4 vibration makes screen cloth 101 vibrate, from avoiding using manual rocking screen cloth 101, and is more laborsaving. The vibrator 6 may be an electromagnetic vibrator, a mechanical vibrator, or an ultrasonic vibrator.

The miniature multi-diameter screening and sample-separating screen further comprises a resonator 5, wherein the resonator 5 comprises a resonance disc 501 and a spring 502, the resonance disc 501 is a rectangular iron plate matched with the base 4 in size, one end of the spring 502 is fixedly connected with the upper part of the resonance disc 501, the other end of the spring 502 is fixedly connected with the lower surface of the base 4, and the natural frequency of the spring 502 is the same as that of the vibrator 6. In operation, when the vibration frequency of the vibrator 6 is consistent with the natural frequency of the spring 502, the amplitude of the spring is maximized, and the vibration effect is optimized.

At least 4 of the springs 502 are provided, and the springs 502 are symmetrically disposed at the corners of the resonator plate 5014. The 4 springs 502 make the base 4 thereon more stable and less prone to toppling.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (2)

1. The utility model provides a miniature many diameters screening divides appearance sieve, includes screen cloth (101), screen cloth (101) are including containing more than 2, and every screen cloth (101) aperture size differs, its characterized in that: the screens (101) are connected together from top to bottom through the connecting device (2), the apertures of the screens (101) are sequentially reduced from top to bottom, two adjacent screens (101) are communicated, and a solid sample falling from the mesh of the upper screen (101) can directly fall onto the lower screen (101) adjacent to the upper screen due to the gravity; the connecting device (2) is a cylinder; external threads are arranged on the upper outer surface and the lower outer surface of the connecting device (2), the outer edge of the screen (101) is fixedly connected to the middle of the inner surface of the mounting sleeve (102), the mounting sleeve (102) is cylindrical, and internal threads matched with the external threads on the outer surface of the connecting device (2) are arranged on the upper inner surface and the lower inner surface of the mounting sleeve (102); sealing rings (103) are arranged on the edges of the upper surface and the lower surface of the screen (101); a grinder (3) is arranged above the uppermost layer of the screen mesh (101), the outlet of the grinder (3) is communicated with the uppermost layer of the screen mesh (101), and a sample falling from the outlet of the grinder (3) can directly fall on the uppermost layer of the screen mesh (101) due to the gravity; the miniature multi-diameter screening and sample separating sieve also comprises a base (4), wherein the base (4) is an iron plate with the length and width larger than the diameter of the mounting sleeve (102), and the base (4) is fixedly connected to the lower part of the lowest layer of the sieve mesh (101) through the mounting sleeve (102); the base (4) is fixedly connected with a vibrator (6); the miniature multi-diameter screening and sample separating sieve further comprises a resonator (5), the resonator (5) comprises a resonance disc (501) and a spring (502), the resonance disc (501) is a rectangular iron plate matched with the size of the base (4), one end of the spring (502) is fixedly connected with the upper part of the resonance disc (501), the other end of the spring (502) is fixedly connected to the lower surface of the base (4), and the natural frequency of the spring (502) is the same as that of the vibrator (6).

2. The micro multi-diameter sizing screen of claim 1, wherein: at least 4 springs (502) are arranged, and the springs (502) are symmetrically distributed on 4 corners of the resonance disc (501).

Images