CN215918100U - Stromatolite shale shaker convenient to installation - Google Patents

Abstract

The utility model relates to the technical field of vibrating screens, and discloses a laminated vibrating screen convenient to install, which comprises a screen frame, wherein a vibrator is fixedly connected to the right side of the screen frame, a slide way is formed in the inner wall of the screen frame, a screen is connected to the inside of the slide way in a sliding manner, a damping device is arranged on the surface of the screen, teeth are arranged at the right end of the screen, the teeth are also connected to the inside of the slide way in a sliding manner, a gear penetrating through the right side of the screen frame is connected to the right side of the teeth in a meshing manner, and a connecting device is arranged on the front side of the screen. Through the arrangement of the connecting device, the worker can complete the connection of the screen mesh only by rotating the rotary table, the back-and-forth running of the worker is avoided, the labor intensity of the worker is reduced, the influence of the back-and-forth disassembly of the bolt on the device is avoided, the stability of the device during operation is improved, meanwhile, the time for installing the screen mesh is greatly saved, and the installation efficiency of the screen mesh is improved.

Description

Stromatolite shale shaker convenient to installation

Technical Field

The utility model relates to the technical field of vibrating screens, in particular to a laminated vibrating screen convenient to mount.

Background

The laminated vibrating screen adopts a high vibration frequency design, is used for closed circuit grinding classification process of ferrous and non-ferrous metal ore dressing plants such as iron ore, lead-zinc ore, tungsten ore and the like, is combined with a cyclone for classification, has high classification efficiency, can obviously reduce the circulating load and over grinding of a grinder, improves the mineral separation recovery rate, can be used for classification, desliming, dehydration and other processes of non-metallic ore dressing plants such as feldspar, quartz, kaolin and the like, however, because the laminated vibrating screen has higher price, the common small coal mine cannot directly purchase the laminated vibrating screen due to the problem of expenditure, but adopts a mode of renting the laminated vibrating screen to sieve coal blocks of the coal mine, because the laminated vibrating screen is required to sieve the coal mine, the requirements for the screen of the laminated vibrating screen are different, the manufacturer leasing the laminated vibrating screen needs to frequently replace the screen to sieve different coal mines, however, the connection mode of the screen mesh in the existing laminated vibrating screen, such as the laminated vibrating screen with the model number of HGZS, is bolt connection, so that an operator needs to screw ten bolts for dismounting and mounting, physical power and time of the operator are consumed greatly, and meanwhile, due to the fact that the bolts are frequently screwed, thread abrasion is caused, connection of the screen mesh is not firm, the screen mesh falls off in frequent vibration, and the screening quality of a coal mine is affected.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the laminated vibrating screen convenient to mount, which has the advantages of more convenient disassembly and mounting of the screen, capability of stably connecting the screen to the laminated vibrating screen and the like, and solves the problems that the screen is time-consuming and labor-consuming to disassemble frequently and the connection of the screen is unstable due to frequent disassembly of the screen.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a stromatolite shale shaker convenient to installation, includes the reel, the right side fixedly connected with vibrator of reel, the slide has been seted up to the inner wall of reel, and the equal sliding connection in inside of slide has the screen cloth, and the surface of screen cloth is provided with damping device, and the right-hand member of screen cloth is provided with tooth, and tooth is at the inside sliding connection of slide equally, and the right side meshing of tooth is connected with the gear that runs through the reel right side, and the front side of screen cloth is provided with connecting device.

Preferably, damping device includes the rolling ball, the inside sliding connection of the top of rolling ball and slide, and the bottom of rolling ball is rotated and is connected with the bracing piece, and the upper surface of screen cloth is seted up with bracing piece surface sliding connection's shock attenuation groove, and the bottom fixedly connected with of bracing piece is sealed fills up, and the outer wall that seals up is the same with the inside sliding connection in shock attenuation groove.

Preferably, connecting device includes the casing, and the casing runs through and fixed connection is in the front side of reel, and the rear end of casing is triangle-shaped, and the inside sliding connection of casing has two connecting rods that are the mirror image setting, and the equal fixedly connected with in rear end of two connecting rods is trapezoidal restriction piece, and the left and right sides of casing is run through respectively to the one end that two restriction pieces carried on the back mutually, fixedly connected with spring one between two restriction pieces.

Preferably, the shape of slide is for falling "U" shape, and the quantity of slide is two, and two slide inner structure are the same and are the upper and lower setting at the inner wall of reel.

Preferably, the bottom of the gear is rotatably connected with a fixed plate fixedly connected with the right side of the screen frame, and the inner ring of the gear is fixedly connected with a turntable.

Preferably, the bottom fixedly connected with damping spring of bracing piece, damping spring keep away from the one end fixed connection of bracing piece in the inside bottom of shock attenuation groove, and the shock attenuation groove has equally been seted up to the lower surface of screen cloth, and two shock attenuation grooves on the surface all are the mirror image setting about the screen cloth, and the inner structure homogeneous phase in two shock attenuation grooves is the same.

Preferably, the spout has been seted up to the front end of screen cloth, the inside of spout and the surface sliding connection of casing, the standing groove has been seted up to the inside left side of spout, the inside sliding connection of standing groove has trapezoidal flexible piece, the inclined plane of flexible piece and the inclined plane sliding connection of restriction piece, the left end fixedly connected with spring two of flexible piece, the one end fixed connection that flexible piece was kept away from to spring two is in the inside left side of standing groove, the standing groove has equally been seted up on the inside right side of spout, the inner structure of two standing grooves is the same and is the mirror image setting.

Preferably, the rear end of the sliding groove is triangular, and the triangle at the rear end of the sliding groove is matched with the triangle formed between the shell and the two limiting blocks.

(III) advantageous effects

Compared with the prior art, the utility model provides the laminated vibrating screen convenient to install, which has the following beneficial effects:

1. this stromatolite shale shaker convenient to installation, setting through connecting device, make the staff only need rotate the carousel and just can accomplish the connection to the screen cloth, avoided the staff's the running of making a round trip, avoided making a round trip to dismantle the influence that the bolt led to the fact the device, and then improved the stability when the device moves, the time-consuming of installation screen cloth has been saved greatly simultaneously, the installation effectiveness of screen cloth has been improved, the installation to different grade type screen cloth has been made things convenient for, and then made things convenient for and required different colliery to sieve and sieve, and then the sorting efficiency in colliery has been improved.

2. This stromatolite shale shaker convenient to installation through damping device's setting, makes the screen cloth when carrying out the sieve material, carries out atmospheric pressure shock attenuation and spring shock attenuation to screen cloth when all around, comes to consume screen cloth vibration power all around, makes the screen cloth consume the inside impact of slide, and then makes the screen cloth reduce the inside wearing and tearing of slide all around, has improved the suitability of screen cloth with the slide, and then makes the screen cloth more stable when the sieve material.

3. This stromatolite shale shaker convenient to installation through the setting of tooth and gear, the strength that uses when having equally significantly reduced the staff and installing the screen cloth has alleviateed staff's intensity of labour, improves the installation rate of screen cloth, has improved staff's efficiency.

4. This stromatolite shale shaker convenient to installation through the setting of rolling ball, has made things convenient for the screen cloth at the inside slip of slide, has reduced the strength that uses when the staff installs the screen cloth, and then has improved the installation rate of screen cloth, has improved staff's installation effectiveness.

Drawings

FIG. 1 is a schematic illustration of a stacked shaker screen of the present invention that is easy to install;

FIG. 2 is a schematic view of the surface structure of a screen according to the present invention;

FIG. 3 is a schematic view showing the inner structure of the shock-absorbing groove of the present invention;

FIG. 4 is a schematic view of the internal connection structure of the chute according to the present invention;

FIG. 5 is a schematic view of the internal structure of the casing of the present invention;

FIG. 6 is an enlarged view taken at A in FIG. 1;

fig. 7 is an enlarged view of fig. 4 at B.

In the figure: 1 screen frame, 2 screens, 3 turntables, 4 teeth, 5 gears, 6 vibrators, 7 slideways, 8 fixing plates, 9 placing grooves, 10 rotating balls, 11 damping grooves, 12 supporting rods, 13 sealing gaskets, 14 damping springs, 15 connecting rods, 16 shells, 17 spring I, 18 spring II, 19 telescopic blocks, 20 sliding grooves and 21 limiting 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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a new technical solution: a laminated vibrating screen convenient to install comprises a screen frame 1, a vibrator 6 is fixedly connected to the right side of the screen frame 1, a slide 7 is arranged on the inner wall of the screen frame 1, the slide 7 is inverted U-shaped, the number of the slide 7 is two, the inner structures of the two slides 7 are the same and are arranged on the inner wall of the screen frame 1 from top to bottom, a screen 2 is connected to the inner portion of the slide 7 in a sliding mode, a damping device is arranged on the surface of the screen 2 and comprises a rotating ball 10, the top of the rotating ball 10 is connected with the inner portion of the slide 7 in a sliding mode, a supporting rod 12 is rotatably connected to the bottom of the rotating ball 10, a damping groove 11 connected with the surface of the supporting rod 12 in a sliding mode is formed in the upper surface of the screen 2, a sealing gasket 13 is fixedly connected to the bottom of the supporting rod 12, the outer wall of the sealing gasket 13 is also connected with the inner portion of the damping groove 11 in a sliding mode, and the sealing gasket 13 is arranged to enable the damping groove 11 to form a closed space, the gas loss in the damping groove 11 is avoided when the supporting rod 12 slides in the damping groove 11, the gas pressure in the damping groove 11 cannot change, the damping effect of the device is improved, the abrasion of the screen 2 to the slideway 7 is reduced, the damping spring 14 is fixedly connected to the bottom of the supporting rod 12, one end of the damping spring 14, far away from the supporting rod 12, is fixedly connected to the bottom of the damping groove 11, the upper surface of the screen 2 is provided with a plurality of damping grooves 11 which are arranged at equal intervals, the lower surface of the screen 2 is also provided with a plurality of damping grooves 11, the damping grooves 11 on the upper surface and the lower surface of the screen 2 are arranged in a mirror image manner, the internal structure of each damping groove 11 is the same, the arrangement shape of the damping grooves 11 is the same as that of the slideway 7, the device can comprehensively protect the slideway 7 when in operation, when the vibrator 6 is started, the vibrator 6 drives the screen frame 1 to vibrate up and down, and then the screen 2 is driven to simultaneously vibrate up and down along with the screen frame 1, and then the purpose of screening the mineral aggregate on the surface of the screen 2 is realized, because a gap exists between the screen 2 and the slideway 7, and further when the screen 2 vibrates up and down along with the screen frame 1, the screen 2 also vibrates in the slideway 7, when the screen 2 vibrates in the slideway 7, because the screen 2 moves upwards, the top of the rotating ball 10 on the upper surface of the screen 2 is contacted with the upper side of the inside of the slideway 7, and further the slideway 7 extrudes the rotating ball 10 on the upper surface of the screen 2, the screen 2 moves upwards in the slideway 7, and further the support rod 12 slides with the damping groove 11 on the upper surface of the screen 2, and simultaneously the sealing gasket 13 slides downwards in the damping groove 11, and extrudes the air in the damping groove 11 on the upper surface of the screen 2, so that the air pressure in the damping groove 11 is increased, meanwhile, the damping springs 14 are extruded to enable the damping springs 14 to be in a compressed state, the force of upward vibration of the screen 2 is consumed by the increase of the air pressure in the damping grooves 11 and the compression of the damping springs 14, so that the vibration of the screen 2 in the slide 7 is reduced, when the screen 2 vibrates downwards, the support rods 12 on the upper surface of the screen 2 slide and move upwards in the damping grooves 11 under the elastic force of the damping springs 14 and the elastic force of the air pressure in the damping grooves 11 to recover the original position, meanwhile, the rotating balls 10 are driven to move upwards to recover the original position, the damping devices on the upper surface of the screen 2 recover the original position, meanwhile, the damping devices on the lower surface of the screen 2 repeat the steps to work, the downward vibration force of the screen 2 is consumed, and further, when the screen 2 screens are used for screening materials, the vibration force around the screen 2 is simultaneously subjected to the air pressure damping and the spring damping, so that the vibration force around the screen 2 is consumed, the collision force of the screen 2 to the inside of the slideway 7 is consumed, so that the abrasion of the periphery of the screen 2 to the inside of the slideway 7 is reduced, the adaptability of the screen 2 and the slideway 7 is improved, and the screen 2 is more stable in material sieving;

the right end of the screen 2 is provided with teeth 4, the teeth 4 are also connected in a sliding way in the slide way 7, the right side of the teeth 4 is meshed and connected with a gear 5 penetrating through the right side of the screen frame 1, the bottom of the gear 5 is rotatably connected with a fixed plate 8 fixedly connected with the right side of the screen frame 1, the inner ring of the gear 5 is fixedly connected with a turntable 3, when the screen 2 is installed, the left side and the right side of the screen 2 are aligned with the left side and the right side of the slide way 7 and then inserted into the slide way 7, and the teeth on the right side of the screen 2 are meshed with the gear 5, at the moment, the turntable 3 can be rotated by manpower or an external motor, so as to drive the gear 5 to rotate on the upper surface of the fixed plate 8, further, the mesh connection of the teeth 4 drives the screen 2 to slide forwards in the slide way 7, meanwhile, the rotating ball 10 on the inner surface of the screen 2 rotates in the slide way 7, so as to reduce the friction force between the screen 2 and the slide way 7, the screen 2 can conveniently slide in the slideway 7, the force used by workers for installing the screen 2 is reduced, the installation speed of the screen 2 is further improved, the installation efficiency of the workers is improved, the force used by the workers for installing the screen 2 is also greatly reduced through the arrangement of the teeth 4 and the gears 5, the installation speed of the screen 2 is improved, the labor intensity of the workers is reduced, and the efficiency of the workers is improved;

the front side of the screen 2 is provided with a connecting device, the connecting device comprises a shell 16, the shell 16 penetrates through and is fixedly connected with the front side of the screen frame 1, the shell 16 is inserted into the front side of the slideway 7, the rear end of the shell 16 is triangular, two connecting rods 15 arranged in a mirror image mode are slidably connected inside the shell 16, the rear ends of the two connecting rods 15 are fixedly connected with trapezoidal limiting blocks 21, the back ends of the two limiting blocks 21 are respectively penetrated through the left side and the right side of the shell 16, meanwhile, the bevel edges of the two limiting blocks 21 are extended to be triangular at the rear end of the shell 16, the screen 2 is clamped twice through the arrangement of the two connecting rods 15 and the two limiting blocks 21, the device can finish the disassembly of the screen 2 only when the two connecting rods 15 are simultaneously extruded, the connection of the screen 2 is protected, the possibility of the sudden disconnection of the screen 2 is reduced, and the safety of the device is improved, a first spring 17 is fixedly connected between the two limiting blocks 21, a sliding chute 20 is formed in the front end of the screen 2, the rear end of the sliding chute 20 is triangular, the interior of the sliding chute 20 is slidably connected with the surface of the shell 16, the triangle in the rear end of the sliding chute 20 is matched with the triangle formed between the shell 16 and the two limiting blocks 21, a placing groove 9 is formed in the left side of the interior of the sliding chute 20, a trapezoidal expansion block 19 is slidably connected with the interior of the placing groove 9, the inclined plane of the expansion block 19 is slidably connected with the inclined plane of the limiting blocks 21, a second spring 18 is fixedly connected with the left side of the expansion block 19, one end of the second spring 18 far away from the expansion block 19 is fixedly connected with the left side of the interior of the placing groove 9, the placing grooves 9 are also formed in the right side of the interior of the sliding chute 20, the internal structures of the two placing grooves 9 are identical and arranged in a mirror image, when the screen 2 slides to the front end of the slideway 7 in the interior of the slideway 7, the chute 20 in the front side of the screen 2 is in contact with the shell 16, with the forward movement of the screen 2 in the slideway 7, the housing 16 extends into the chute 20 but is not in contact with the two telescopic blocks 19, with the forward movement of the screen 2, the housing 16 continues to extend into the chute 20, when the inclined surfaces of the two telescopic blocks 19 slide on the inclined surfaces of the two limiting blocks 21 respectively, the inclined surfaces of the two telescopic blocks 19 generate extrusion forces on the inclined surfaces of the two limiting blocks 21 respectively, and simultaneously the inclined surfaces of the two limiting blocks 21 also generate extrusion forces on the inclined surfaces of the two telescopic blocks 19, so that the two limiting blocks 21 slide relatively in the housing 16, the two limiting blocks 21 enter the housing 16, the spring I17 between the two limiting blocks 21 is in a compressed state, the same two telescopic blocks 19 slide in the two placing grooves 9 respectively and extrude the two springs II 18 respectively, and the two springs II 18 are in a compressed state, the relative sliding between the two limiting blocks 21 drives the two connecting rods 15 to also relatively slide in the casing 16, along with the forward movement of the screen 2, when the inclined surfaces of the two telescopic blocks 19 are respectively separated from the inclined surfaces of the two limiting blocks 21, the two telescopic blocks 19 lose the extrusion force, the two telescopic blocks 19 respectively slide in the two placing grooves 9 and restore the original positions under the elastic force of the two springs 18, the inclined surfaces of the two limiting blocks 21 also lose the extrusion force, the two limiting blocks 21 slide back to back in the casing under the elastic force of the spring I17 and restore the original positions, the two connecting rods 15 are simultaneously driven to also slide back to back in the casing 16 and restore the original positions, at the moment, the triangle at the rear end of the sliding groove 20 is matched with the triangle formed between the casing 16 and the two limiting blocks 21, the connection of the screen 2 is completed, and the rotation of the rotary disc 3 is stopped, by arranging the connecting device, the worker can complete the connection of the screen 2 only by rotating the rotary disc 3, the back-and-forth running of the worker is avoided, the influence of back-and-forth disassembly of bolts on the device is avoided, the stability of the device in operation is further improved, meanwhile, the time for installing the screen 2 is greatly saved, the installation efficiency of the screen 2 is improved, the installation of different types of screens is further facilitated, the screening of coal mines with different screening requirements is further facilitated, and the sorting efficiency of the coal mines is further improved;

when the screen 2 needs to be disassembled, the two connecting rods 15 are pressed, so that the two connecting rods 15 slide relatively in the shell 16, the two connecting rods 15 slide relatively, and then the two limiting blocks 21 are driven to relatively slide in the shell 16, so that the two limiting blocks 21 enter the shell 16, at the same time, the first spring 17 between the two limiting blocks 21 is in a compressed state, and the rotating disc 3 is reversely rotated at the moment, so that the screen 2 is pulled out from the inner part of the slideway 7, since both of the restricting pieces 21 enter the inside of the housing 16, and the inclined surfaces of the housing 16 do not contact the inclined surfaces of the two telescopic pieces 19, and the screen 2 can be directly pulled out by rotating the rotary disc 3 counterclockwise, so that by the arrangement of the connecting device, the purpose of dismantling the screen 2 at a high speed can be realized, the time for dismantling the screen 2 is greatly saved, and the dismantling efficiency of the screen 2 by workers is improved.

The working principle is as follows: when the device is used, when the screen 2 is installed, the left side and the right side of the screen 2 are aligned with the left side and the right side of the slideway 7 and then inserted into the slideway 7, and the right teeth of the screen 2 are meshed with the gear 5, at this time, the rotary disc 3 can be rotated by manpower or an external motor, so as to drive the gear 5 to rotate on the upper surface of the fixed plate 8, so as to drive the screen 2 to slide forwards in the slideway 7, when the screen 2 slides to the front end of the slideway 7 in the slideway 7, the chute 20 at the front side of the screen 2 is contacted with the shell 16, along with the forward movement of the screen 2 in the slideway 7, the shell 16 extends into the chute 20 but is not contacted with the two telescopic blocks 19, along with the forward movement of the screen 2, the shell 16 continues to go deep into the chute 20, when the inclined surfaces of the two telescopic blocks 19 respectively slide on the inclined surfaces of the two limiting blocks 21, the inclined surfaces of the two telescopic blocks 19 respectively generate extrusion force on the inclined surfaces of the two limiting blocks 21, meanwhile, the inclined planes of the two limiting blocks 21 also generate extrusion force on the inclined planes of the two telescopic blocks 19, so that the two limiting blocks 21 both enter the shell 16, the spring I17 between the two limiting blocks 21 is in a compressed state, the same two telescopic blocks 19 respectively slide in the two placing grooves 9, so that the two springs II 18 are in a compressed state, along with the forward movement of the screen 2, when the inclined planes of the two telescopic blocks 19 are respectively separated from the inclined planes of the two limiting blocks 21, the two telescopic blocks 19 lose the extrusion force, so that the two telescopic blocks 19 respectively slide in the two placing grooves 9 under the elastic force of the two springs II 18 and return to the original positions, meanwhile, the inclined planes of the two limiting blocks 21 also lose the extrusion force, so that the two limiting blocks 21 slide back to back in the shell under the elastic force of the spring I17 and return to the original positions, and simultaneously, the two connecting rods 15 are also driven to slide back to back in the shell 16 and return to the original positions, the triangle-shaped of 20 rear ends of spout this moment coincide with the triangle-shaped of constituteing between casing 16 and two restriction pieces 21, the connection to screen cloth 2 has been accomplished, stop the rotation to carousel 3, and then the setting through connecting device, make the staff only need rotate carousel 3 and just can accomplish the connection to screen cloth 2, avoided the round trip of staff to run, the influence of the dismantlement bolt that makes a round trip to cause the device has been avoided, and then the stability when having improved the device operation, simultaneously saved the time spent of installation screen cloth 2 greatly, the installation effectiveness of screen cloth 2 has been improved, and then made things convenient for the installation to different grade type screen cloth, and then made things convenient for and sieved the different colliery that requires to sieve, and then improved the sorting efficiency in colliery.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A stromatolite shale shaker convenient to installation includes reel (1), its characterized in that: the utility model discloses a screen frame, including screen frame (1), slide (7), the equal sliding connection in inside of slide (7) has screen cloth (2), the surface of screen cloth (2) is provided with damping device, the right-hand member of screen cloth (2) is provided with tooth (4), tooth (4) are at the internal sliding connection of slide (7) equally, the right side meshing of tooth (4) is connected with gear (5) that run through screen frame (1) right side, the front side of screen cloth (2) is provided with connecting device.

2. A stack shaker screen for ease of installation as set forth in claim 1, wherein: damping device includes rolling ball (10), the inside sliding connection of the top of rolling ball (10) and slide (7), and the bottom of rolling ball (10) is rotated and is connected with bracing piece (12), and damping groove (11) with bracing piece (12) surface sliding connection are seted up to the upper surface of screen cloth (2), and the bottom fixedly connected with of bracing piece (12) seals up pad (13), seals up the outer wall of pad (13) and the inside sliding connection of damping groove (11) equally.

3. A stack shaker screen for ease of installation as set forth in claim 1, wherein: connecting device includes casing (16), and casing (16) run through and fixed connection is in the front side of reel (1), and the rear end of casing (16) is triangle-shaped, and the inside sliding connection of casing (16) has two connecting rods (15) that are the mirror image setting, and the equal fixedly connected with in rear end of two connecting rods (15) is trapezoidal restriction piece (21), and the left and right sides of casing (16) is run through respectively to the one end that two restriction piece (21) carried on the back mutually, fixedly connected with spring (17) between two restriction piece (21).

4. A stack shaker screen for ease of installation as set forth in claim 1, wherein: the shape of slide (7) is for "U" shape, and the quantity of slide (7) is two, and two slides (7) inner structure are the same and are the upper and lower setting at the inner wall of reel (1).

5. A stack shaker screen for ease of installation as set forth in claim 1, wherein: the bottom of gear (5) rotates and is connected with fixed plate (8) with reel (1) right side fixed connection, and the inner circle fixed connection of gear (5) has carousel (3).

6. A stack shaker screen for easy installation as claimed in claim 2, wherein: the bottom fixedly connected with damping spring (14) of bracing piece (12), the one end fixed connection that bracing piece (12) were kept away from in damping spring (14) is in the inside bottom of shock attenuation groove (11), and shock attenuation groove (11) have been seted up equally to the lower surface of screen cloth (2), and two shock attenuation grooves (11) on the surface all are the mirror image setting about screen cloth (2), and the inner structure homogeneous phase of two shock attenuation grooves (11) is the same.

7. A stack shaker screen for easy installation as claimed in claim 3, wherein: spout (20) have been seted up to the front end of screen cloth (2), the inside of spout (20) and the surface sliding connection of casing (16), standing groove (9) have been seted up to the inside left side of spout (20), the inside sliding connection of standing groove (9) has trapezoidal flexible piece (19), the inclined plane of flexible piece (19) and the inclined plane sliding connection of restriction piece (21), the left end fixedly connected with spring two (18) of flexible piece (19), the one end fixed connection that flexible piece (19) were kept away from in spring two (18) is in the inside left side of standing groove (9), standing groove (9) have been seted up equally on the inside right side of spout (20), the inner structure of two standing grooves (9) is the same and is the mirror image setting.

8. A stack shaker screen for easy installation as claimed in claim 7, wherein: the rear end of the sliding groove (20) is triangular, and the triangle at the rear end of the sliding groove (20) is matched with the triangle formed between the shell (16) and the two limiting blocks (21).

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