阅读说明：本技术 一种建筑垃圾分类处理装置 (Construction waste classification processing apparatus ) 是由 张永清 黄剑铭 秦鑫雷 于 2021-07-21 设计创作，主要内容包括：一种建筑垃圾分类处理装置,本发明涉及建筑垃圾处理技术领域,筛选凸轮活动设置在开设于设备外壳背面的凸轮让位孔中；导轨两两相对称由上至下均固定在设备外壳的左右内壁上；废砖切割盛载筛利用滑块滑动设置在最上层的左右两个导轨之间,废砖切割盛载筛的后侧壁与位于其后方的筛选凸轮活动抵触设置,废砖切割盛载筛与远离清理门一侧的滑块之间利用销轴旋接,废砖切割盛载筛的后侧壁与设备外壳之间连接有过筛缓冲弹簧。其能够将建筑废砖、砂石等进行过筛分类的同时,还能够将废砖上的混凝土残留进行有效铲除,无需人工操作,节省人工劳动力,提高分类回收效率。(The invention discloses a construction waste classification treatment device, and relates to the technical field of construction waste treatment.A screening cam is movably arranged in a cam abdicating hole formed in the back surface of an equipment shell; the guide rails are symmetrically fixed on the left inner wall and the right inner wall of the equipment shell from top to bottom; the waste brick cutting and containing sieve is arranged between the left guide rail and the right guide rail on the uppermost layer in a sliding mode through the sliding blocks, the rear side wall of the waste brick cutting and containing sieve is movably abutted to the screening cam located behind the rear side wall, the waste brick cutting and containing sieve is connected with the sliding blocks far away from one side of the cleaning door in a rotating mode through the pin shaft, and the rear side wall of the waste brick cutting and containing sieve is connected with the sieving buffer spring between the equipment shell. It can sieve categorised when can be with building waste brick, grit etc. effectively shovels away concrete residue on the waste brick, need not manual operation, saves the hand labor power, improves categorised recovery efficiency.)

1. The utility model provides a construction waste classification processing apparatus which characterized in that: the device comprises an equipment shell (1), a feed hopper (2), a cleaning door (3), a discharge pipe (4) and a support frame (5); a feed hopper (2) is connected to one side wall of the equipment shell (1) in a penetrating manner, a cleaning door (3) is hinged in an opening in the front face of the equipment shell (1), a discharge pipe (4) is connected to the bottom wall of the equipment shell (1) in a penetrating manner, and supporting frames (5) are fixed on the equipment shell (1) around the discharge pipe (4); it also includes:

the screening motor (6) is fixed on the back of the equipment shell (1) by a motor support;

the shaft (15), the said shaft (15) utilizes the shaft coupling to connect to output shaft of the screening motor (6);

the screening cams (14) are provided with a plurality of numbers and are all connected to the shaft (15), and the screening cams (14) are movably arranged in cam abdicating holes (1-1) formed in the back of the equipment shell (1);

the number of the guide rails (11) is a plurality, and every two guide rails (11) are symmetrically fixed on the left inner wall and the right inner wall of the equipment shell (1) from top to bottom;

the waste brick cutting and carrying sieve comprises a waste brick cutting and carrying sieve (12), wherein the waste brick cutting and carrying sieve (12) is arranged between a left guide rail (11) and a right guide rail (11) on the uppermost layer in a sliding mode through a sliding block (19), the rear side wall of the waste brick cutting and carrying sieve (12) is movably abutted to a screening cam (14) located behind the rear side wall of the waste brick cutting and carrying sieve (12), the waste brick cutting and carrying sieve (12) is connected with the sliding block (19) on one side far away from a cleaning door (3) in a rotating mode through a pin shaft (22), and a sieving buffer spring (21) is connected between the rear side wall of the waste brick cutting and carrying sieve (12) and an equipment shell (1);

the screen cloth (13), the number of the screen cloth (13) is not less than one, the screen cloth (13) is arranged between the guide rails (11) which are arranged on the left and right below the waste brick cutting and carrying screen (12) in a sliding mode through the sliding blocks (19), the rear side wall of the screen cloth (13) is movably abutted to the screening cam (14) which is arranged behind the screen cloth, the screen cloth (13) is connected with the sliding blocks (19) on one side far away from the cleaning door (3) in a screwing mode through the pin shafts (22), and the screening buffer springs (21) are connected between the rear side wall of the screen cloth (13) and the equipment shell (1);

the electric telescopic rod (7), the electric telescopic rod (7) is fixed on the inner top wall of the equipment shell (1);

the top plate (18), the said top plate (18) is fixed on output end of the electric telescopic rod (7);

a cutting blade fixing plate (20), the cutting blade fixing plate (20) is connected to the bottom of the top plate (18) by a plurality of cutting buffer springs (17);

the number of the guide shafts (9) is the same as that of the cutting buffer springs (17), one guide shaft (9) is inserted in each cutting buffer spring (17) in a rolling mode, the lower end of each guide shaft (9) is fixed on a cutting blade fixing plate (20), and the upper end of each guide shaft (9) is movably arranged in a top plate (18) in a penetrating mode;

the cutting motors (8) are multiple, and the cutting motors (8) are all fixed on the top plate (18);

the number of the cutting cams (10) is the same as that of the cutting motors (8), one cutting cam (10) is fixed at the output end of each cutting motor (8), and each cutting cam (10) movably penetrates through the top plate (18) and then movably abuts against the upper part of the cutting blade fixing plate (20);

the cutting blade (16), cutting blade (16) are fixed in the bottom of cutting blade fixed plate (20), and cutting blade (16) are not equidistant between them.

Preferably, the cutting blade (16) comprises a first blade (16-1) and a second blade (16-2); the first blade (16-1) and the second blade (16-2) are symmetrically arranged, and one sides of the bottom edges of the first blade (16-1) and the second blade (16-2) are inclined; it also includes:

the cutter blade sleeve shaft (23) penetrates through the first cutter blade (16-1) and the second cutter blade (16-2), the cutter blade sleeve shaft (23) is arranged in a yielding groove (20-1) formed in the bottom wall of the cutter blade fixing plate (20), and two ends of the cutter blade sleeve shaft (23) are fixed on the side wall of the yielding groove (20-1);

the blade tension springs (24) are provided with a plurality of blade tension springs (24), every two blade tension springs are in a group, and the blade tension springs are symmetrically sleeved on the same blade sleeve shaft (23) from left to right;

the cutting blade (16) is composed of two blades, so that the cutting blade (16) is suspended above adjacent waste bricks (27), when the cutting blade (16) descends, the first blade (16-1) and the second blade (16-2) move downwards and are folded under the guiding action of the inclined planes of the lower edges of the first blade and the second blade, the cutting work is realized, when the cutting blade ascends, the cutting blade separates under the action of the blade tension spring 24, and a movement margin exists between the first blade (16-1) and the second blade (16-2), so that the cutting of concrete with different thicknesses on the waste bricks is met.

2. The construction waste sorting device according to claim 1, wherein: a handle (3-1) is fixed on the outer wall of the cleaning door (3).

3. The construction waste sorting device according to claim 1, wherein: the bottom of roof (18) is fixed with several and supports pressure post (26), and supports and all the activity of pressure post (26) and wear to establish in cutting blade fixed plate (20).

4. The construction waste sorting device according to claim 1, wherein: all utilize the pivot to connect scalable bracing piece (25) soon on the inside wall of two strut frames (5) about being located clearance door (3) below, the top of scalable bracing piece (25) supports with the lateral wall of clearance door (3) and contradicts the setting.

5. The working principle of the construction waste classification device according to claim 1 is characterized in that: brick wall construction waste is thrown into the equipment shell (1) through the feed hopper (2), at the moment, the electric telescopic rod (7) is in a retraction state, namely mechanisms connected to the output end of the electric telescopic rod (7) are far away from the waste brick cutting containing sieve (12), the waste falls on the waste brick cutting containing sieve (12) through the feed hopper (2), the screening motor (6) is started to drive a plurality of screening cams (14) to rotate, the screening cams (14) touch the waste brick cutting containing sieve (12) and the screen (13), the waste brick cutting containing sieve (12) and the screen (13) reciprocate back and forth on the guide rail (11) to realize screening, broken waste in the screen hole of the waste brick cutting containing sieve (12) falls on the screen (13) below, and then is screened through the screen (13), the number of the screen (13) is multiple, and the screen hole diameters are gradually decreased, so that the broken waste is further screened in multiple stages, finally, the obtained waste is discharged from the discharge pipe (4), and the waste left on the screen (13) is manually removed by opening the cleaning door (3) and dragging out the screen (13); the waste bricks (27) left on the waste brick cutting and carrying sieve (12) are gradually spread out in the vibration screening process, if the waste bricks are spread out to be uneven, the cleaning door (3) can be opened, the waste brick cutting and carrying sieve (12) is pulled out, the waste bricks (27) are manually spread out, the waste bricks (27) are placed between two adjacent cutting blades (16), namely, the waste bricks (27) are placed between two cutting blades (16) with proper distance according to the requirement, the waste brick cutting and carrying sieve (12) is sent into the equipment shell (1), the cleaning door (3) is closed, the electric telescopic rod (7) is started, the top plate (18) is driven to descend, the cutting blade fixing plate (20) is driven to descend, the cutting blades (16) descend to the upper edge of the waste bricks (27), the cutting motor (8) is started at the moment, the cutting cam (10) is driven to rotate, and the cutting blade fixing plate (20) is continuously hit, cutting blade fixed plate (20) up-and-down reciprocating motion under guiding shaft (9) and cutting buffer spring (17)'s effect, thereby concrete to on waste brick (27) edge is amputated, then cutting motor (8) close, the concrete that drops down holds sieve (13) to sieve to flourishing through waste brick cutting, realize multistage back of sieving at last, take out, waste brick (27) of the good side of clearance overturn under manual work, make the below of cutting blade (16) is placed once more in to another side that has the concrete, restart cutting motor (8), realize excision work.

Technical Field

The invention relates to the technical field of construction waste treatment, in particular to a construction waste classification treatment device.

Background

The construction waste refers to residue, waste soil, waste material, residual mud and other wastes generated in the process of constructing, laying, dismantling and repairing various buildings, structures, pipe networks and the like by construction and construction units or individuals.

The recovery of present building rubbish adopts simple processing of sieving basically for retrieve the more complete waste brick of volume and recycle, because there is the residue of concrete on the waste brick, these remain and need artifical manual one to shovel off, have greatly increased the hand labor power.

Disclosure of Invention

The invention aims to overcome the defects and shortcomings of the prior art and provides a construction waste classifying and treating device which can effectively eradicate concrete residues on waste bricks while sieving and classifying construction waste bricks, gravels and the like, does not need manual operation, saves manual labor force and improves classifying and recycling efficiency.

In order to achieve the purpose, the invention adopts the following technical scheme: the device comprises an equipment shell, a feed hopper, a cleaning door, a discharge pipe and a support frame; a feed hopper is connected to one side wall of the equipment shell in a penetrating manner, a cleaning door is hinged in an opening in the front face of the equipment shell, a discharge pipe is connected to the bottom wall of the equipment shell in a penetrating manner, and a support frame is fixed on the equipment shell around the discharge pipe; it also includes:

the screening motor is fixed on the back of the equipment shell by using a motor bracket;

the shaft is connected to an output shaft of the screening motor by a coupler;

the screening cams are arranged in cam abdicating holes formed in the back surface of the equipment shell in a movable mode;

the device comprises a device shell, a plurality of guide rails and a plurality of guide rails, wherein every two guide rails are symmetrically fixed on the left inner wall and the right inner wall of the device shell from top to bottom;

the waste brick cutting and carrying sieve is arranged between the left guide rail and the right guide rail on the uppermost layer in a sliding mode through a sliding block, the rear side wall of the waste brick cutting and carrying sieve is movably abutted against a screening cam positioned behind the waste brick cutting and carrying sieve, the waste brick cutting and carrying sieve is connected with the sliding block on one side far away from the cleaning door in a rotating mode through a pin shaft, and a sieving buffer spring is connected between the rear side wall of the waste brick cutting and carrying sieve and an equipment shell;

the screen cloth, the quantity of the said screen cloth is no less than one, and utilize the slide block to slip and set up between the guide rail set up left and right that locates below the waste brick cutting and holds the screen cloth, the rear sidewall of the screen cloth and locating at its rear screening cam activity are supported and set up, utilize the axis pin to connect with the rotary joint between slide block far away from one side of the cleaning door, connect with and sieve the buffer spring between apparatus outer casing and the rear sidewall of the screen cloth;

the electric telescopic rod is fixed on the inner top wall of the equipment shell;

the top plate is fixed on the output end of the electric telescopic rod;

a cutting blade fixing plate connected to the bottom of the top plate by a plurality of cutting buffer springs;

the number of the guide shafts is the same as that of the cutting buffer springs, one guide shaft is inserted in each cutting buffer spring in a rolling mode, the lower end of each guide shaft is fixed on the cutting blade fixing plate, and the upper end of each guide shaft movably penetrates through the top plate;

the cutting motors are multiple and are all fixed on the top plate;

the number of the cutting cams is the same as that of the cutting motors, one cutting cam is fixed on the output end of each cutting motor, and each cutting cam movably penetrates through the top plate and then movably abuts against the upper part of the cutting blade fixing plate;

and the cutting blades are fixed at the bottom of the cutting blade fixing plate, and are arranged at different intervals.

Preferably, the cutting blade comprises a blade number one and a blade number two; the first blade and the second blade are symmetrically arranged, and one sides of the bottom edges of the first blade and the second blade are inclined; it also includes:

the blade sleeve shaft penetrates through the first blade and the second blade and is arranged in a yielding groove formed in the bottom wall of the blade fixing plate 20, and two ends of the blade sleeve shaft are fixed on the side wall of the yielding groove;

the blade extension springs, the quantity of blade extension spring is the several, and two liang become a set of, and bilateral symmetry cover is established on same root blade sleeve axle.

Preferably, a handle is fixed on the outer wall of the cleaning door.

Preferably, the bottom of roof is fixed with several and supports the post of pressing, and supports to press the equal activity of post to wear to establish in the cutting blade fixed plate.

Preferably, all utilize the pivot to connect scalable bracing piece soon on the inside wall of two strut frames about being located the clearance door below, scalable bracing piece's top supports with the lateral wall of clearance door and contradicts the setting.

The working principle of the invention is as follows: the method comprises the steps that brick wall building waste is thrown into an equipment shell through a feed hopper, an electric telescopic rod is in a retraction state at the moment, namely mechanisms connected to the output end of the electric telescopic rod are far away from a waste brick cutting and carrying sieve, the waste falls on the waste brick cutting and carrying sieve through the feed hopper, a screening motor is started to drive a plurality of screening cams to rotate, the screening cams touch the waste brick cutting and carrying sieve and a screen mesh, the waste brick cutting and carrying sieve and the screen mesh reciprocate back and forth on a guide rail to realize screening, broken waste of screen holes of the waste brick cutting and carrying sieve falls into the screen mesh below the screen mesh, the screen mesh is screened, the number of the screen meshes is multiple, the aperture of the screen mesh is arranged in a descending mode, further multi-stage screening of the broken waste is realized, finally obtained waste is discharged through a discharge pipe, the waste remained on the screen mesh is manually cleared through opening a clearing door and dragging out of the screen mesh; the waste bricks left on the waste brick cutting and loading sieve are gradually spread out in the vibration screening process, if the waste bricks are not flat, a cleaning door can be opened, the waste brick cutting and loading sieve is pulled out, the waste bricks are manually spread out and placed between two adjacent cutting blades, namely, the waste bricks are placed between two cutting blades with proper space as required, the waste brick cutting and loading sieve is sent into the equipment shell, the cleaning door is closed, an electric telescopic rod is started to drive a top plate to descend and simultaneously drive a cutting blade fixing plate to descend, so that the cutting blades descend to the upper edge of the waste bricks, a cutting motor is started at the moment to drive a cutting cam to rotate, the cutting blade fixing plate is continuously hit, the cutting blade fixing plate reciprocates up and down under the action of a guide shaft and a cutting buffer spring, so that concrete on the edge of the waste bricks is cut off, then the cutting motor is closed, the fallen concrete is sieved to a screen mesh through the waste brick cutting and loading sieve, and finally, after multi-stage sieving is realized, the waste bricks are taken out, the cleaned waste bricks on one side surface are turned over under manual operation, so that the other side surface with concrete is placed below the cutting blade again, the cutting motor is started again, and the cutting work is realized.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a construction waste classification treatment device which can effectively remove concrete residues on waste bricks while sieving and classifying construction waste bricks, gravels and the like, does not need manual operation, saves manual labor force and improves the classification and recovery efficiency.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a sectional view taken along line a-a in fig. 1.

Fig. 4 is a sectional view taken along line B-B in fig. 2.

FIG. 5 is a schematic structural view of a waste brick cutting and carrying screen according to the present invention.

Fig. 6 is an enlarged view of the portion C in fig. 4.

Description of reference numerals:

the device comprises a device shell 1, cam abdicating holes 1-1, a feed hopper 2, a cleaning door 3, a handle 3-1, a discharge pipe 4, a support frame 5, a screening motor 6, an electric telescopic rod 7, a cutting motor 8, a guide shaft 9, a cutting cam 10, a guide rail 11, a waste brick cutting containing sieve 12, a screen 13, a screening cam 14, a shaft 15, a cutting blade 16, a first blade 16-1, a second blade 16-2, a cutting buffer spring 17, a top plate 18, a slide block 19, a cutting blade fixing plate 20, an abdicating groove 20-1, a screening buffer spring 21, a shaft 22, a blade sleeve shaft 23, a blade tension spring 24, a telescopic support rod 25, a pressing column 26 and waste bricks 27.

The specific implementation mode is as follows:

the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and the preferred embodiments in the description are only examples, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.

As shown in fig. 1 to fig. 6, the following technical solutions are adopted in the present embodiment: the device comprises an equipment shell 1, a feed hopper 2, a cleaning door 3, a discharge pipe 4 and a support frame 5; a feed hopper 2 is connected to one side wall of the equipment shell 1 in a penetrating manner, a cleaning door 3 is hinged in an opening in the front face of the equipment shell 1, a discharge pipe 4 is connected to the bottom wall of the equipment shell 1 in a penetrating manner, and a support frame 5 is fixedly welded on the equipment shell 1 around the discharge pipe 4; it also includes:

the screening motor 6 is fixed on the back of the equipment shell 1 by a motor bracket;

the shaft 15 is connected to an output shaft of the screening motor 6 by a coupler;

the screening cams 14 are arranged, the number of the screening cams 14 is two, the screening cams 14 are connected to the shaft 15, and the screening cams 14 are movably arranged in cam abdicating holes 1-1 formed in the back face of the equipment shell 1;

the number of the guide rails 11 is four, and every two guide rails 11 are symmetrically fixed on the left inner wall and the right inner wall of the equipment shell 1 from top to bottom by utilizing screw connection;

the waste brick cutting and carrying sieve 12 is arranged between the left guide rail 11 and the right guide rail 11 on the uppermost layer in a sliding mode through a sliding block 19, the rear side wall of the waste brick cutting and carrying sieve 12 is movably abutted to a screening cam 14 located behind the rear side wall, the waste brick cutting and carrying sieve 12 is rotatably connected with the sliding block 19 on one side far away from the cleaning door 3 through a pin shaft 22, and a screening buffer spring 21 is connected between the rear side wall of the waste brick cutting and carrying sieve 12 and the equipment shell 1;

the screen 13, the number of the said screen 13 is one, and utilize the slide block 19 to slip and set up between the guide rail 11 set up left and right below the waste brick cutting and carrying sieve 12, the back sidewall of the screen 13 and locating at its rear screening cam 14 activity to support and set up, screen 13 and keeping away from the slide block 19 of the side of the cleaning door 3 and utilizing the axis pin 22 to connect with rotating, connect with the buffer spring 21 that sieves between back sidewall of the screen 13 and apparatus casing 1;

the electric telescopic rod 7 is fixedly riveted on the inner top wall of the equipment shell 1 by using a bolt;

the top plate 18 is fixedly connected to the output end of the electric telescopic rod 7 through a screw;

a cutting blade fixing plate 20, the cutting blade fixing plate 20 being attached to the bottom of the top plate 18 by four cutting buffer springs 17;

the guide shafts 9 are inserted into the cutting buffer springs 17 in an inward rolling manner, the lower end of each guide shaft 9 is fixedly welded on the cutting blade fixing plate 20, and the upper end of each guide shaft 9 movably penetrates through the top plate 18;

two cutting motors 8 are arranged, and the two cutting motors 8 are fixed on the top plate 18 by using motor supports;

the cutting device comprises cutting cams 10, wherein the output end of each cutting motor 8 is fixedly provided with one cutting cam 10, and each cutting cam 10 movably penetrates through a top plate 18 and then movably abuts against the upper part of a cutting blade fixing plate 20;

the cutting blades 16 are riveted and fixed at the bottom of the cutting blade fixing plate 20 by using screws, and the cutting blades 16 are arranged at different intervals, namely the intervals are arranged according to the length, the width and the height of bricks and are slightly larger than the length, the width and the height of the bricks;

the cutting motor 8, the electric telescopic rod 7 and the screening motor 6 are externally connected with a power supply, and the models are purchased and used according to needs.

Preferably, a handle 3-1 with an arc-shaped groove on the lower side surface is welded and fixed on the outer wall of the cleaning door 3.

Preferably, a plurality of pressing columns 26 are fixed at the bottom of the top plate 18, so that the descending of the top plate 18 is limited, and meanwhile, the waste bricks 27 are positioned in the cutting process.

Preferably, the inside walls of the left and right brackets 5 located below the cleaning door 3 are both screwed with retractable support rods 25 by using a rotating shaft (the retractable structure is the same as that of a retractable umbrella handle in the prior art), and the top ends of the retractable support rods 25 are supported and abutted to the outside walls of the cleaning door 3.

The working principle of the specific embodiment is as follows: brick wall building waste is thrown into the equipment shell 1 through the feed hopper 2, at the moment, the electric telescopic rod 7 is in a retraction state, namely mechanisms connected to the output end of the electric telescopic rod 7 are far away from the waste brick cutting and carrying sieve 12, the waste falls on the waste brick cutting and carrying sieve 12 through the feed hopper 2, the screening motor 6 is started to drive the screening cams 14 to rotate, the screening cams 14 touch the waste brick cutting and carrying sieve 12 and the screen 13, the waste brick cutting and carrying sieve 12 and the screen 13 reciprocate back and forth on the guide rail 11 to realize screening, broken waste of the sieve pores of the waste brick cutting and carrying sieve 12 falls on the screen 13 below, the broken waste is further screened through the screen 13, finally obtained waste is discharged through the discharge pipe 4, the waste left on the screen 13 is pulled out of the screen 13 through the opening of the cleaning door 3 to realize manual cleaning; the waste bricks 27 left on the waste brick cutting and carrying sieve 12 are gradually spread out in the vibration screening process, if the waste bricks are not flat, the cleaning door 3 can be opened, the waste brick cutting and carrying sieve 12 is pulled out, the waste bricks 27 are manually spread out and are placed between two adjacent cutting blades 16, namely, the waste bricks 27 are placed between two cutting blades 16 with proper distance as required, the waste brick cutting and carrying sieve 12 is sent into the equipment shell 1, the cleaning door 3 is closed, the electric telescopic rod 7 is started to drive the top plate 18 to descend and simultaneously drive the cutting blade fixing plate 20 to descend, so that the cutting blades 16 descend to the upper edge of the waste bricks 27, the cutting motor 8 is started at the moment to drive the cutting cam 10 to rotate, the cutting blade fixing plate 20 is continuously hit, the cutting blade fixing plate 20 reciprocates up and down under the action of the guide shaft 9 and the cutting buffer spring 17, so as to cut off the concrete on the edge of the waste bricks 27, then the cutting motor 8 is turned off, the dropped concrete is sieved to the screen 13 through the waste brick cutting containing sieve 12, and finally after multi-stage sieving is realized, the concrete is taken out, the waste bricks 27 on one side surface which are cleaned are turned over under manual operation, so that the other side surface with the concrete is placed below the cutting blade 16 again, the cutting motor 8 is started again, and the cutting work is realized.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:

1. the cutting blade is adopted, and the cutting motor, the cutting buffer spring and the cutting cam are matched, so that the concrete on the waste bricks is cut, manual cutting is omitted, and the recovery efficiency of the waste bricks is improved;

2. multi-stage screening is carried out by adopting a screen mesh, so that multi-stage classified collection of the construction waste is realized;

3. adopt scalable bracing piece, cooperation clearance door can support the screen cloth and the useless brick cutting that drag out and carry the sieve greatly, and adjustable support angle satisfies and puts the useless brick and the discharge to the useless brick after the clearance and waste material, improves discharging efficiency.

The second embodiment is as follows:

the present embodiment differs from the first embodiment in that: the cutting blade 16 comprises a first blade 16-1 and a second blade 16-2; the first blade 16-1 and the second blade 16-2 are symmetrically arranged, and one sides of the bottom edges of the first blade 16-1 and the second blade 16-2 are inclined; it also includes:

the blade sleeve shaft 23 penetrates through the first blade 16-1 and the second blade 16-2, the blade sleeve shaft 23 is arranged in an abdicating groove 20-1 formed in the bottom wall of the cutting blade fixing plate 20, and two ends of the blade sleeve shaft 23 are fixed on the side wall of the abdicating groove 20-1;

blade extension springs 24, blade extension springs 24's quantity is a plurality of, and two liang are a set of, and bilateral symmetry cover is established on same root blade sleeve axle 23.

The rest of the components and the connection relation are the same as those of the first embodiment.

The working principle of the specific embodiment is as follows: the cutting blade 16 is composed of two blades, so that the cutting blade 16 is suspended above the adjacent waste bricks 27, when the cutting blade 16 descends, the first blade 16-1 and the second blade 16-2 move downwards and are folded under the guiding action of the inclined surface of the lower edge of the first blade 16-1 and the second blade 16-2, the cutting work is realized, when the cutting blade ascends, the cutting blade separates under the action of the blade tension spring 24, and a movement margin exists between the first blade 16-1 and the second blade 16-2, so that the cutting of concrete with different thicknesses on the waste bricks is met.

It will be appreciated by those skilled in the art that modifications and equivalents may be made to the embodiments described above, and that various modifications, equivalents, improvements and the like may be made without departing from the spirit and scope of the invention.