CN212799966U

CN212799966U - Environment-friendly treatment equipment convenient for filter screen disassembly for rare earth processing

Info

Publication number: CN212799966U
Application number: CN202021557748.9U
Authority: CN
Inventors: 刘海晨; 杨小爱
Original assignee: Baotou Pingao Permanent Magnet Material Co ltd
Current assignee: Baotou Pingao Permanent Magnet Material Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-26
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses an environmental protection treatment facility that filter screen dismantled for tombarthite processing is convenient for, including the rose box, be equipped with the stirring subassembly in the rose box, a side rigid coupling of rose box has the oral siphon, it has first filter screen to peg graft in the first rectangular channel, the bottom rigid coupling of first filter screen has the fixed plate, the bottom rigid coupling of first rectangular channel has the fourth spring, the second bar groove is equipped with the joint subassembly, another side rigid coupling of rose box has the outlet pipe, second filter screen and baffle are connected to the joint respectively in second rectangular channel and the third rectangular channel, top surface one side edge rigid coupling of rose box has the explosive storage box, the bottom surface rigid coupling of explosive storage box has the medicine guide pipe, the slag notch has been seted up at the bottom surface middle part of rose box, be equipped with fixed establishment in the slag notch, be equipped with; the utility model is convenient for fully mixing the medicine with the wastewater, thereby separating the heavy metal in the wastewater, improving the working efficiency and protecting the environment from being polluted; and meanwhile, the first filter screen and the second filter screen are convenient to detach and install.

Description

Environment-friendly treatment equipment convenient for filter screen disassembly for rare earth processing

Technical Field

The utility model relates to a technical field of environmental protection treatment facility especially relates to tombarthite processing is with environmental protection treatment facility of being convenient for filter screen dismantlement.

Background

The existing rare earth can be used only after being filtered, but the filtered wastewater contains a large amount of heavy metals, and the direct discharge of the wastewater can cause the pollution of the surrounding land by the heavy metals; the existing wastewater treatment equipment cannot well remove heavy metals in wastewater; meanwhile, a large amount of time is consumed to remove heavy metals, so that the working efficiency is low; the filter screen of the existing wastewater filtering equipment is not convenient to disassemble and replace.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing the environment-friendly treatment equipment convenient for the disassembly of the filter screen for the processing of rare earth.

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

the environment-friendly treatment equipment convenient for disassembling the filter screen for processing the rare earth comprises a filter box, wherein the filter box is a rectangular box body horizontally placed, a stirring assembly is arranged in the filter box, a water inlet pipe is fixedly connected to one side face of the filter box and is communicated with one side face of the filter box, a first rectangular groove is formed in the top face of the water inlet pipe, a first filter screen is inserted in the first rectangular groove, a fixed plate is fixedly connected to the bottom of the first filter screen, a fourth spring is fixedly connected to the bottom of the first rectangular groove, the other end of the fourth spring is contacted with the fixed plate, a first strip-shaped groove is formed in the bottom face of the water inlet pipe, a second strip-shaped groove and a third strip-shaped groove are formed in the two side faces of the first strip-shaped groove, the third strip-shaped groove is communicated with the first rectangular groove, a clamping assembly is arranged in the second strip-shaped groove, and, the water outlet pipe is communicated with the filter box, a second rectangular groove and a third rectangular groove are formed in the top surface of the water outlet pipe respectively, a second filter screen and a baffle are clamped in the second rectangular groove and the third rectangular groove respectively, and a first handle and a second handle are fixedly connected to the top surfaces of the second filter screen and the baffle respectively;

the utility model discloses a medicine storage box, including rose box, medicine storage box, medicine guide pipe, inlet, outlet, the rigid coupling of top surface one side edge rigid coupling of rose box has the medicine storage box, medicine storage box side top has been seted up into medicine mouth, medicine guide pipe has the medicine guide pipe, medicine guide pipe runs through the medicine storage box, and medicine guide pipe and medicine storage box intercommunication, the other end of medicine guide pipe passes through the bayonet socket rigid coupling inside the top surface of rose box, a plurality of goes out the medicine mouth, every seted up on the medicine guide pipe the medicine mouth all with medicine guide pipe intercommunication, the slag notch has been seted up at the bottom surface middle part of rose box, and slag notch and rose box intercommunication, be equipped with fixed establishment in the slag notch, the bottom surface rigid.

Preferably, the stirring subassembly includes motor, pivot, stirring leaf, the top surface middle part of rose box runs through there is the pivot, just the pivot rotates the top surface middle part of connecting at the rose box, the rigid coupling has a plurality of stirring leaves of pole on the outer wall of the pivot in the rose box, pivot one end tip rigid coupling is on the output shaft of motor.

Preferably, the joint subassembly includes first pull rod, first spring, fixed block, a side rigid coupling in second bar groove has the one end of first spring, the other end rigid coupling of first spring is on a side of fixed block, just fixed block sliding connection is at second bar inslot, the bottom surface rigid coupling of fixed block has first pull rod, first pull rod and the cooperation of first bar groove, first spring is under natural state, and the fixed block is located fixed plate upper portion.

Preferably, the fixing mechanism comprises a second spring, a cover plate, a second pull rod and a limiting hole, wherein a second rectangular groove and a third rectangular groove are symmetrically formed in two side surfaces of the slag hole, the second rectangular groove and the third rectangular groove penetrate through the slag hole, a first placing groove and a second placing groove are formed in the bottom surfaces of the second rectangular groove and the third rectangular groove, the first placing groove and the second placing groove are respectively communicated with the second rectangular groove and the third rectangular groove, one end of the second spring is fixedly connected to the middle of one side surface of the second rectangular groove, the other end of the second spring is fixedly connected to one side surface of the cover plate, the cover plate is slidably connected to the second rectangular groove and matched with the third rectangular groove, the second pull rod is fixedly connected to the bottom surface of the cover plate and matched with the first placing groove and the second placing groove respectively, the edge of one side of the top surface of the cover plate is provided with the limiting hole, and the limiting hole penetrates through the cover plate.

Preferably, fixed subassembly includes third pull rod, third spring, spacing post, second limiting plate, first limiting plate, the cylinder hole has been seted up to a side of square piece, the cylinder hole runs through the bottom surface of square piece and rose box, the downthehole third pull rod that is equipped with of cylinder, be equipped with first limiting plate and second limiting plate on the outer wall of third pull rod, the one end tip rigid coupling of second limiting plate has spacing post, spacing post and spacing hole cooperation, be equipped with the third spring on the outer wall of the third pull rod between first limiting plate and the second limiting plate.

Preferably, the one end sliding connection of third pull rod has first limiting plate, and first limiting plate rigid coupling is in the outside of cylinder hole, the other end rigid coupling of third pull rod has the second limiting plate, second limiting plate sliding connection is in the cylinder hole, the one end rigid coupling of third spring is in a side of first limiting plate, the other end rigid coupling of third spring is at the other end of second limiting plate, the third spring is in original length under natural state.

Preferably, the equal vertical rigid coupling in bottom surface four corners department of rose box has the supporting leg, every the equal rigid coupling in bottom of supporting leg has the slipmat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a medicine storage tank, medicine guide tube, motor, pivot, stirring leaf mutually support, are convenient for fully mix medicine and waste water, and the heavy metal in medicine and the waste water takes place chemical reaction to separate out the heavy metal in the waste water, improve work efficiency, the environmental protection is not polluted;

2. through the fixing plate and the fixing block. The first spring, the fourth spring and the first pull rod are matched for use, so that the first filter screen is convenient to detach and mount; meanwhile, the second rectangular groove and the first handle are used, so that the second filter screen is convenient to detach and mount;

3. through mutually supporting of fixed subassembly, apron, second spring, spacing hole, second pull rod, the heavy metal compound that produces in the rose box of being convenient for separates out from the rose box.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limitation. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the bottom view structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 3 at A;

FIG. 4 is a schematic view of a front view angle horizontal cut structure of the present invention;

fig. 5 is a cross-sectional view of the outlet pipe of the present invention;

FIG. 6 is a partial enlarged view of FIG. 5 at B;

FIG. 7 is a schematic view of the engagement assembly of the present invention with the first filter screen;

FIG. 8 is a schematic structural view of the slag hole of the present invention;

fig. 9 is a schematic structural diagram of the fixing assembly of the present invention.

Number in the figure: the filter box comprises a filter box 1, a water inlet pipe 2, a first filter screen 3, a medicine storage box 4, a motor 5, a water outlet pipe 6, a first pull rod 7, a second pull rod 8, a square block 9, a cover plate 10, a rotating shaft 11, a stirring blade 12, a medicine guide pipe 13, a second filter screen 14, a baffle 15, a first spring 16, a fixing block 17, a fixing plate 18, a second spring 19, a limiting hole 20, a third pull rod 21, a third spring 22, a limiting column 23, a second limiting plate 24, a first limiting plate 25 and a fourth spring 26.

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 embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-9, the environment-friendly treatment equipment for rare earth processing, which is convenient for disassembling a filter screen, comprises a filter box 1, wherein the filter box 1 is a horizontally placed rectangular box body, and a stirring assembly is arranged in the filter box 1, so that medicines and rare earth wastewater can be uniformly mixed, and heavy metals in the rare earth wastewater can be conveniently separated; a water inlet pipe 2 is fixedly connected to one side face of the filter box 1, the water inlet pipe 2 is communicated with one side face of the filter box 1, a first rectangular groove is formed in the top face of the water inlet pipe 2, and a first filter screen 3 is inserted into the first rectangular groove, so that impurities in the rare earth wastewater can be filtered conveniently; the bottom of the first filter screen 3 is fixedly connected with a fixing plate 18, so that the first filter screen 3 is convenient to fix; a fourth spring 26 is fixedly connected to the bottom of the first rectangular groove, the other end of the fourth spring 26 is in contact with the fixing plate 18, and the fourth spring 26 is compressed to facilitate the bouncing of the first filter screen 3; the bottom surface of the water inlet pipe 2 is provided with a first strip-shaped groove, two side surfaces of the first strip-shaped groove are provided with a second strip-shaped groove and a third strip-shaped groove, the third strip-shaped groove is communicated with the first rectangular groove, and the second strip-shaped groove is provided with a clamping assembly, so that the first filter screen 3 can be fixed conveniently; the another side rigid coupling of rose box 1 has outlet pipe 6, outlet pipe 6 and rose box 1 intercommunication, second rectangular channel and third rectangular channel have been seted up respectively to the top surface of outlet pipe 6, the joint has second filter screen 14 and baffle 15 respectively in second rectangular channel and the third rectangular channel, the top surface of second filter screen 14 and baffle 15 rigid coupling respectively has the first in command and the second in command, is convenient for with the dismantlement and the installation of second filter screen 14 and baffle 15.

A medicine storage box 4 is fixedly connected to one side edge of the top surface of the filter box 1, a medicine inlet is formed in the top of one side surface of the medicine storage box 4, a medicine guide pipe 13 is fixedly connected to the bottom surface of the medicine storage box 4, the medicine guide pipe 13 penetrates through the medicine storage box 4, the medicine guide pipe 13 is communicated with the medicine storage box 4, the other end of the medicine guide pipe 13 is fixedly connected to the inside of the top surface of the filter box 1 through a bayonet, a plurality of medicine outlets are formed in the medicine guide pipe 13, and each medicine outlet is communicated with the medicine guide pipe 13 so as to enable medicines to be uniformly scattered in the filter box 1; the slag notch has been seted up at the bottom surface middle part of rose box 1, and slag notch and 1 intercommunication of rose box, be equipped with fixed establishment in the slag notch, be convenient for cover apron 10 in the slag notch, the bottom surface rigid coupling of rose box 1 has square 9, be equipped with fixed subassembly in the square 9, be convenient for fix apron 10.

The utility model discloses in, the stirring subassembly includes motor 5, pivot 11, stirring leaf 12, the top surface middle part of rose box 1 runs through there is pivot 11, just pivot 11 rotates the top surface middle part of connecting at rose box 1, the rigid coupling has a if a pole stirring leaf 12 on the outer wall of pivot 11 in the

rose box

1, 11 one end tip rigid couplings of pivot are on motor 5's output shaft, and motor 5's model is W21.

The utility model discloses in, the joint subassembly includes first pull rod 7, first spring 16, fixed block 17, a side rigid coupling in second bar groove has the one end of first spring 16, the other end rigid coupling of first spring 16 is on a side of fixed block 17, just fixed block 17 sliding connection is at second bar inslot, the bottom surface rigid coupling of fixed block 17 has first pull rod 7, first pull rod 7 and the cooperation of first bar groove, first spring 16 is under natural state, and fixed block 17 is located 18 upper portions of fixed plate.

In the utility model, the fixing mechanism comprises a second spring 19, a cover plate 10, a second pull rod 8 and a limiting hole 20, wherein the two side surfaces of the slag hole are symmetrically provided with a second rectangular groove and a third rectangular groove which both run through the slag hole, the bottom surfaces of the second rectangular groove and the third rectangular groove are respectively provided with a first placing groove and a second placing groove which are respectively communicated with the second rectangular groove and the third rectangular groove, the middle part of one side surface of the second rectangular groove is fixedly connected with one end of the second spring 19, the other end of the second spring 19 is fixedly connected with one side surface of the cover plate 10, the cover plate 10 is slidably connected with the second rectangular groove, the cover plate 10 is matched with the third rectangular groove, the bottom surface of the cover plate 10 is fixedly connected with the second pull rod 8, the second pull rod 8 is respectively matched with the first placing groove and the second placing groove, a limiting hole 20 is formed at an edge of a top side of the cover plate 10, and the limiting hole 20 penetrates through the cover plate 10.

The utility model discloses in, fixed subassembly includes third pull rod 21, third spring 22, spacing post 23, second limiting plate 24, first limiting plate 25, the cylinder hole has been seted up to square 9's a side, the cylinder hole runs through square 9 and rose box 1's bottom surface, the downthehole third pull rod 21 that is equipped with of cylinder, be equipped with first limiting plate 25 and second limiting plate 24 on the outer wall of third pull rod 21, the one end tip rigid coupling of second limiting plate 24 has spacing post 23, spacing post 23 and the cooperation of spacing hole 20, be equipped with third spring 22 on the outer wall of third pull rod 21 between first limiting plate 25 and the second limiting plate 24.

The utility model discloses in, the one end sliding connection of third pull rod 21 has first limiting plate 25, and the outside of first limiting plate 25 rigid coupling in the cylinder hole, the other end rigid coupling of third pull rod 21 has second

limiting plate

24, 24 sliding connection of second limiting plate are downthehole at the cylinder, the one end rigid coupling of third spring 22 is in a side of first limiting plate 25, the other end rigid coupling of third spring 22 is at the other end of second limiting plate 24, third spring 22 is in the original length under natural state.

In the utility model, the four corners of the bottom surface of the filter box 1 are all vertically and fixedly connected with supporting legs, which is convenient for supporting the environmental protection treatment equipment; the bottom of each supporting leg is fixedly connected with an anti-skid pad.

The utility model discloses before the use, pass through wire and external power source electric connection with motor 5 earlier.

Leading-in the rose box 1 with tombarthite waste water through oral siphon 2, through the impurity filtration of the first filter screen 3 in the oral siphon 2 in with tombarthite waste water. And then required medicines are mixed and poured into the medicine storage box 4 through the medicine inlet, the medicines enter the filter box 1 through the medicine guide pipe 13, finally the motor 5 is started, the output shaft of the motor 5 drives the rotating shaft 11 to rotate, the rotating shaft 11 drives the stirring blades 12 to rotate, and the stirring blades 12 stir the wastewater in the filter box 1, so that the medicines and the rare earth wastewater are mixed more uniformly, and the medicines and the heavy metals of the rare earth wastewater are subjected to chemical reaction, so that the heavy metals in the rare earth wastewater are separated.

After the heavy metal is separated, the baffle 15 is separated from the water outlet pipe 6 through the second handle, the separated rare earth wastewater in the filter box 1 flows out of the filter box 1 through the second filter screen 14 in the water outlet pipe 6, and the separated heavy metal is prevented from being discharged out of the filter box 1 by the separated rare earth wastewater.

After all the separated rare earth wastewater flows out of the filter box 1, the third pull rod 21 is pulled outwards, the third pull rod 21 drives the second limiting plate 24 to move towards the cylindrical hole, the second limiting plate 24 compresses the third spring 22, and meanwhile, the third pull rod 21 drives the limiting column 23 to move towards the cylindrical hole, so that the limiting column 23 is separated from the limiting hole 20; meanwhile, the cover plate 10 is moved into the second rectangular groove through the second pull rod 8, so that a slag hole is leaked, and separated heavy metal is conveniently leaked from the filter box 1; meanwhile, the cover plate 10 compresses the second spring 19, after the heavy metals in the filter box 1 are completely leaked out, the second pull rod 8 is loosened, the second spring 19 recovers elastic deformation, and the cover plate 10 is moved into the third rectangular groove; meanwhile, the third pull rod 21 is released, the third spring 22 recovers elastic deformation, and the limit column 23 is moved into the limit hole, so that the cover plate 10 is fixed.

When first filter screen 3 needs to be changed, through removing first pull rod 7, first pull rod 7 drives fixed block 17 and removes to the second bar-shaped groove, and fixed block 17 compresses first spring 16 simultaneously, and fixed block 17 and fixed plate 18 separation back, fourth spring 26 will bounce fixed plate 18 to bounce first filter screen 3, take off first filter screen 3. A new first filter 3 is pressed down from the first rectangular groove, and when the first filter 3 is pressed to the bottom of the first rectangular groove, the first pull rod 7 is released, the first spring 16 is restored to be elastically deformed, the fixing block 17 is moved in the third rectangular groove, and the fixing block 17 is positioned at the upper portion of the fixing plate 18.

After the environment-friendly treatment equipment is used up, the external power supply of the motor 5 is turned off.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Tombarthite processing is with environmental protection treatment facility of filter screen dismantlement of being convenient for, including rose box (1), its characterized in that: the filter box (1) is a rectangular box body horizontally placed, a stirring assembly is arranged in the filter box (1), a water inlet pipe (2) is fixedly connected to one side face of the filter box (1), the water inlet pipe (2) is communicated with one side face of the filter box (1), a first rectangular groove is formed in the top face of the water inlet pipe (2), a first filter screen (3) is inserted in the first rectangular groove, a fixing plate (18) is fixedly connected to the bottom of the first filter screen (3), a fourth spring (26) is fixedly connected to the bottom of the first rectangular groove, the other end of the fourth spring (26) is in contact with the fixing plate (18), a first strip-shaped groove is formed in the bottom face of the water inlet pipe (2), a second strip-shaped groove and a third strip-shaped groove are formed in both side faces of the first strip-shaped groove and communicated with the first rectangular groove, and a clamping assembly is arranged in the second strip-shaped groove, a water outlet pipe (6) is fixedly connected to the other side face of the filter box (1), the water outlet pipe (6) is communicated with the filter box (1), a second rectangular groove and a third rectangular groove are formed in the top face of the water outlet pipe (6) respectively, a second filter screen (14) and a baffle (15) are clamped in the second rectangular groove and the third rectangular groove respectively, and a first handle and a second handle are fixedly connected to the top faces of the second filter screen (14) and the baffle (15) respectively;

the utility model discloses a medicine storage box, including rose box (1), top surface one side edge rigid coupling of rose box (1) has explosive box (4), the medicine mouth has been seted up into at explosive box (4) side top, the bottom surface rigid coupling of explosive box (4) has drug guide tube (13), drug guide tube (13) run through explosive box (4), and drug guide tube (13) and explosive box (4) intercommunication, the other end of drug guide tube (13) passes through the bayonet socket rigid coupling inside the top surface of rose box (1), a plurality of goes out the medicine mouth, every seted up on drug guide tube (13) the medicine mouth all with drug guide tube (13) intercommunication, the slag notch has been seted up at the bottom surface middle part of rose box (1), and slag notch and rose box (1) intercommunication, be equipped with fixed establishment in the slag notch, the bottom surface rigid coupling of rose box (1) has square piece (9), be equipped with fixed subassembly in square piece (9).

2. The environmental protection treatment equipment for the rare earth processing convenient for the disassembly of a filter screen according to claim 1, which is characterized in that: the stirring subassembly includes motor (5), pivot (11), stirring leaf (12), the top surface middle part of rose box (1) runs through pivot (11), just pivot (11) rotate the top surface middle part of connecting in rose box (1), the rigid coupling has a stirring leaf (12) if a pole on the outer wall of pivot (11) in rose box (1), pivot (11) one end tip rigid coupling is on the output shaft of motor (5).

3. The environmental protection treatment equipment for the rare earth processing convenient for the disassembly of a filter screen according to claim 1, which is characterized in that: the joint subassembly includes first pull rod (7), first spring (16), fixed block (17), a side rigid coupling in second bar groove has the one end of first spring (16), the other end rigid coupling of first spring (16) is on a side of fixed block (17), just fixed block (17) sliding connection is in second bar inslot, the bottom surface rigid coupling of fixed block (17) has first pull rod (7), first pull rod (7) and the cooperation of first bar groove, first spring (16) are under natural state, and fixed block (17) are located fixed plate (18) upper portion.

4. The environmental protection treatment equipment for the rare earth processing convenient for the disassembly of a filter screen according to claim 1, which is characterized in that: the fixing mechanism comprises a second spring (19), a cover plate (10), a second pull rod (8) and a limiting hole (20), wherein a second rectangular groove and a third rectangular groove are symmetrically formed in two side faces of the slag hole and penetrate through the slag hole, a first placing groove and a second placing groove are formed in the bottom faces of the second rectangular groove and the third rectangular groove and are respectively communicated with the second rectangular groove and the third rectangular groove, one end of the second spring (19) is fixedly connected to the middle of one side face of the second rectangular groove, the other end of the second spring (19) is fixedly connected to one side face of the cover plate (10), the cover plate (10) is slidably connected to the second rectangular groove and is matched with the third rectangular groove, the second pull rod (8) is fixedly connected to the bottom face of the cover plate (10), and the second pull rod (8) is respectively matched with the first placing groove and the second placing groove, a limiting hole (20) is formed in the edge of one side of the top face of the cover plate (10), and the limiting hole (20) penetrates through the cover plate (10).

5. The environmental protection treatment equipment for the rare earth processing convenient for the disassembly of a filter screen according to claim 1, which is characterized in that: the fixed subassembly includes third pull rod (21), third spring (22), spacing post (23), second limiting plate (24), first limiting plate (25), the cylinder hole has been seted up to a side of square piece (9), the cylinder hole runs through the bottom surface of square piece (9) and rose box (1), the downthehole third pull rod (21) that is equipped with of cylinder, be equipped with first limiting plate (25) and second limiting plate (24) on the outer wall of third pull rod (21), the one end tip rigid coupling of second limiting plate (24) has spacing post (23), spacing post (23) and spacing hole (20) cooperation, be equipped with third spring (22) on the outer wall of third pull rod (21) between first limiting plate (25) and second limiting plate (24).

6. The environmental protection treatment equipment for the rare earth processing convenient for the disassembly of a filter screen, according to claim 5, is characterized in that: the one end sliding connection of third pull rod (21) has first limiting plate (25), and first limiting plate (25) rigid coupling is in the outside in cylinder hole, the other end rigid coupling of third pull rod (21) has second limiting plate (24), second limiting plate (24) sliding connection is in the cylinder hole, the one end rigid coupling of third spring (22) is in the side of first limiting plate (25), the other end rigid coupling of third spring (22) is at the other end of second limiting plate (24), third spring (22) are in original length under natural state.

7. The environmental protection treatment equipment for the rare earth processing convenient for the disassembly of a filter screen according to claim 1, which is characterized in that: the bottom surface four corners department of rose box (1) all vertical rigid coupling has the supporting leg, every the equal rigid coupling in bottom of supporting leg has the slipmat.