CN114393707A

CN114393707A - Device for preparing mortar by using waste concrete

Info

Publication number: CN114393707A
Application number: CN202111516038.0A
Authority: CN
Inventors: 周连花
Original assignee: Individual
Current assignee: Shantou Hongji Concrete Components Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-26
Anticipated expiration: 2041-12-13
Also published as: CN114393707B

Abstract

The invention relates to a mortar making device, in particular to a mortar making device utilizing waste concrete. The invention provides a mortar making device which is simple in operation and can further filter crushed sand and stone and utilize waste concrete to make mortar. An apparatus for manufacturing mortar using waste concrete, comprising: a base plate; the charging frame is arranged in the middle of the top of the bottom plate, and one side of the lower part of the charging frame is provided with a discharge outlet; the middle inside the bottom plate is provided with a first motor; the puddler, first motor output shaft downside are equipped with the puddler that is used for stirring the muddy earth that smashes finishing, and the puddler is located the material loading frame inside, and first motor output shaft links to each other with the material loading frame rotary type. Motor work makes connecting rod intermittent type and wedge contact, and then makes reciprocating of filter screen intermittent type shake, can further filter the sand and soil after smashing, and the sand and soil filters more fully, and the mortar of preparation is enough to satisfy the construction demand.

Description

Device for preparing mortar by using waste concrete

Technical Field

The invention relates to a mortar making device, in particular to a mortar making device utilizing waste concrete.

Background

The mortar is the mortar which bonds the masonry block materials into a whole, along with the increasing of construction engineering, silt resources are continuously exploited to cause the serious damage of human ecological resources, the waste concrete is widely existed in construction waste, so people can recycle the waste concrete and make the waste concrete into mortar, which can solve the problem of environmental pollution caused by the waste concrete, in the mortar making device, the waste concrete is generally directly crushed, then is mixed with other raw materials, is added with clear water and is stirred to prepare the mortar, in the working step, the sand and stone to be stirred are not fully crushed and filtered, only once crushing is carried out, and more large-particle sand and soil exist, so that the manufactured mortar cannot meet the construction requirement, meanwhile, the larger grains of sand and stone are manually fished out by using a screen during stirring, so that the working efficiency is influenced.

Therefore, it is necessary to design a mortar manufacturing apparatus using waste concrete, which is easy to operate and can further filter crushed sand.

Disclosure of Invention

In order to overcome the direct crushing processing mortar that once carries out waste concrete, the mortar that easily leads to the preparation still has large granule sand and soil, can't satisfy the shortcoming of construction demand, the technical problem is: provided is a mortar making device using waste concrete, which is simple in operation and can further filter crushed sand.

The technical implementation scheme of the invention is as follows: an apparatus for manufacturing mortar using waste concrete, comprising: a base plate; the charging frame is arranged in the middle of the top of the bottom plate, and one side of the lower part of the charging frame is provided with a discharge outlet; the middle inside the bottom plate is provided with a first motor; the lower side of the output shaft of the first motor is provided with a stirring rod for stirring the crushed concrete, the stirring rod is positioned in the charging frame, and the output shaft of the first motor is rotatably connected with the charging frame; the baffle is arranged on the discharge port in a sliding manner; the handle is arranged on one side of the baffle; the upper part in the charging frame is slidably provided with a filter screen for further filtering sand; the top of the bottom plate is provided with a crushing mechanism for crushing the concrete; and the middle in the loading frame of the shaking mechanism is provided with the shaking mechanism used for shaking the filter screen.

Further, the crushing mechanism includes: the top of the bottom plate is symmetrically provided with support frames, and the two support frames are connected with the charging frame; the collecting frame is connected between the upper sides of the supporting frames; the collecting frame is symmetrically and rotatably provided with a first rotating shaft; one side of the collecting frame is provided with a first supporting block; the second motor is arranged at the top of the first supporting block, and an output shaft of the second motor is connected with the first rotating shaft on one side; gears are arranged on one sides of the two first rotating shafts and are meshed with each other; the two first rotating shafts are respectively provided with a rolling block for crushing concrete, and the two rolling blocks are positioned inside the collecting frame; the blanking pipe is arranged at the bottom of the collecting frame and used for conveying sandy soil.

Further, the shaking mechanism includes: the top of the output shaft of the first motor is provided with a rotating block; the lower side in the loading frame is provided with a first limiting block, and the rotating block is rotatably connected with the first limiting block; the bottom of the filter screen is annularly connected with a plurality of wedge blocks along the circumferential direction; the rotating block is circumferentially and annularly connected with three connecting rods, and the three connecting rods are all contacted with the wedge-shaped block; and the buffer springs are connected between the two sides of the bottom of the filter screen and the material loading frame.

Further, still including adding water mechanism, it includes to add water mechanism: the middle of one side of each of the two support frames is provided with a connecting block; the water collecting frame is connected between one sides of the two connecting blocks and used for storing clear water; the middle of one side of the water collecting frame is provided with a water pump; the bottom of the water pump is connected with a water outlet pipe used for conveying clean water, and the tail end of the water outlet pipe is communicated with the material loading frame; the water valve is arranged on the lower side of the water outlet pipe in a rotating mode.

Further, still including dust removal mechanism, dust removal mechanism includes: the upper part of the charging frame is symmetrically provided with second supporting blocks; the annular pipe is connected between the two second supporting blocks; a plurality of spray heads for spraying clear water are uniformly arranged on the annular pipe; and one side of the annular pipe is provided with a connecting pipe which is communicated with the water pump.

Further, still including control mechanism, control mechanism is including: the other sides of the two supporting frames are provided with third supporting blocks; a second rotating shaft is rotatably arranged between the two third supporting blocks; the top of the blanking tube is provided with a limiting rod; the limiting rod is slidably provided with a limiting block used for limiting the blanking pipe; the return spring is connected between the material blocking block and the limiting rod; the inner sides of the two third supporting blocks are respectively provided with a fourth supporting block; a third rotating shaft is rotatably arranged between one sides of the two fourth supporting blocks; the middle of the second rotating shaft and the middle of the third rotating shaft are provided with the reels; the stay cord is connected with the stay cord between the middle of the filter screen top and the upside of the material blocking block, and the stay cord is connected with the two reel in a sliding manner.

Further, still including coupling mechanism, coupling mechanism includes: a second limiting block is arranged at the position, located at the top of the baffle, of one side of the loading frame; the sliding block is arranged in the second limiting block in a sliding mode, and the baffle is connected with the sliding block in a sliding mode; and the annular spring is connected between the sliding block and the second limiting block.

Furthermore, a plurality of dust exhaust ports are formed in the outer side of the upper portion of the charging frame.

Has the advantages that: 1. the motor works to enable the connecting rod to be intermittently contacted with the wedge-shaped block, so that the filter screen is intermittently moved up and down to shake, the crushed sandy soil can be further filtered, the sandy soil is more sufficiently filtered, and the manufactured mortar can meet the construction requirement;

2. waste concrete is poured into the collecting frame, the second motor is started to work, so that the rolling block rotates to crush the waste concrete, and the waste concrete is crushed into sandy soil, so that mortar can be conveniently processed, manual operation is not needed, and the waste concrete and the sandy soil are integrated;

3. the motor output shaft rotates to drive the stirring rod to rotate, so that sandy soil can be stirred without manual stirring, and the consistency of the prepared mortar is more uniform;

4. the water pump is started to work, so that clear water can be conveyed into the charging frame through the water outlet pipe, clear water is added into sandy soil, the sandy soil is stirred into mortar, manual spraying is not needed, and labor is saved;

5. the water pump works to convey clean water to the annular pipe, and the clean water is sprayed out of the spray head to play a role in dust falling on the periphery of the loading frame, so that the working personnel are prevented from being influenced by overlarge dust;

6. the feeding pipe can be fed intermittently under the action of the control mechanism, so that the sand and soil are prevented from being accumulated on the filter screen to influence the normal work order;

7. can play limiting displacement to the baffle under slider and annular spring complex effect, need not directly to take off the baffle, can prevent that the baffle from losing, it is safer.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a partial cross-sectional view of the present invention.

Fig. 3 is a schematic perspective view of the crushing mechanism of the present invention.

Fig. 4 is a partial cross-sectional view of the dithering mechanism of the present invention.

Fig. 5 is a schematic perspective view of a part of the shaking mechanism of the present invention.

Fig. 6 is a schematic perspective view of the water adding mechanism of the present invention.

Fig. 7 is a schematic perspective view of the dust removing mechanism of the present invention.

Fig. 8 is a partial cross-sectional view of the control mechanism of the present invention.

Fig. 9 is an enlarged view of the invention at a.

Fig. 10 is a partial cross-sectional view of the coupling mechanism of the present invention.

Fig. 11 is an enlarged view of the invention at B.

Reference numerals: 1. the device comprises a base plate, 2, a loading frame, 3, a first motor, 4, a stirring rod, 5, a baffle, 6, a handle, 7, a filter screen, 8, a crushing mechanism, 80, a support frame, 81, a collection frame, 82, a first rotating shaft, 83, a first support block, 84, a second motor, 85, a gear, 86, a grinding block, 87, a blanking pipe, 9, a shaking mechanism, 90, a first limit block, 91, a rotating block, 92, a wedge-shaped block, 93, a connecting rod, 94, a buffer spring, 10, a water adding mechanism, 100, a connecting block, 101, a water collecting frame, 102, a water pump, 103, a water outlet pipe, 104, a water valve, 11, a dust removing mechanism, 110, a second support block, 111, a ring pipe, 112, a spray head, 113, a connecting pipe, 12, a control mechanism, 120, a third support block, 121, a limit rod, 122, a material blocking block, 123, a return spring, 124, a second rotating shaft, 125, a fourth support block, 126, a support block, Third rotating shaft 127, reel 128, pull rope 13, connecting mechanism 130, second limiting block 131, sliding block 132 and annular spring.

Detailed Description

The present invention now will be described more fully hereinafter with reference to the accompanying drawings, in which presently preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for completeness and fully convey the scope of the invention to the skilled person.

Example 1

A device for preparing mortar by using waste concrete, which comprises a bottom plate 1, a charging frame 2, a first motor 3 and a stirring rod 4 as shown in figures 1-5, baffle 5, handle 6, filter screen 7, rubbing crusher constructs 8 and shake mechanism 9, be equipped with material loading frame 2 in the middle of the 1 top of bottom plate, be equipped with first motor 3 in the middle of the 1 inside bottom plate, 3 output shaft downside of first motor is equipped with puddler 4, puddler 4 is located material loading frame 2 inside, 3 output shaft of first motor links to each other with material loading frame 2 rotary type, the bin outlet is seted up to 2 lower part front sides of material loading frame, the gliding style is equipped with baffle 5 on the bin outlet, 5 anterior left sides of baffle are equipped with handle 6, the upper portion slidingtype is equipped with filter screen 7 in the

material loading frame

2, 1 top of bottom plate is equipped with rubbing crusher constructs 8, the middle shake mechanism 9 that is equipped with in the material loading frame 2, it has a plurality of dust exhaust mouths to open in the 2 upper portion outsides of material loading frame, can prevent that more dust can't be discharged to pile up in material loading frame 2 inside.

When people need to use the waste concrete to make mortar, people can firstly place the waste concrete on the crushing mechanism 8, start the crushing mechanism 8 to work, so that the crushing mechanism 8 crushes the waste concrete into powder, the crushed sandy soil falls into the loading frame 2 and falls onto the filter screen 7, then people start the first motor 3 to work, the output shaft of the first motor 3 rotates to drive the shaking mechanism 9 to work, so that the shaking mechanism 9 drives the filter screen 7 to intermittently move up and down to form shaking, the sandy soil on the filter screen 7 can be uniformly filtered, the small-particle sandy soil after being filtered falls onto the stirring rod 4, the output shaft of the first motor 3 rotates to drive the stirring rod 4 to rotate, so that the stirring rod 4 rotates to stir the sandy soil, people can add clear water and raw materials into the loading frame 2 to stir the sandy soil into mortar, people can also use tools to take out the large-particle sandy soil remained on the filter screen 7, the mortar is put on the crushing mechanism 8 again for crushing again, after the mortar is manufactured, people can close the crushing mechanism 8 and the first motor 3, then move the handle 6 to the front side to drive the baffle 5 to move to the front side, and then can take the baffle 5 down to enable the baffle 5 not to block the discharge hole any more, then the mortar in the charging frame 2 can be scraped out by using a scraper for collection, after the mortar is collected, people can put the baffle 5 back on the discharge hole to enable the baffle 5 to block the discharge hole, the next round of mortar manufacturing work can be carried out, after the mortar is not manufactured, people can take the baffle 5 down, clean water is used for washing the inside of the charging frame 2, sewage is discharged from the discharge hole, the baffle 5 is put back after the cleaning, therefore, the operation does not need manual excessive operation during the mortar manufacturing, the sand is not needed to be stirred manually, the operation is more automatic, and simultaneously, the sand can be further filtered, the manufactured mortar can better meet the construction requirement.

The crushing mechanism 8 comprises a support frame 80, a collecting frame 81, a first rotating shaft 82, a first support block 83, a second motor 84, a gear 85, a rolling block 86 and a discharging pipe 87, the support frame 80 is arranged on the left and right of the top of the bottom plate 1, the two support frames 80 are connected with the charging frame 2, the collecting frame 81 is connected between the upper sides of the support frames 80, the first rotating shaft 82 is arranged on the collecting frame 81 in a left-right rotating mode, the first support block 83 is arranged on the left of the rear portion of the collecting frame 81, the second motor 84 is arranged on the top of the first support block 83, an output shaft of the second motor 84 is connected with the first rotating shaft 82 on the left, the gears 85 are arranged on the rear sides of the two first rotating shafts 82, the two gears 85 are meshed with each other, the rolling blocks 86 are arranged on the two first rotating shafts 82, the two rolling blocks 86 are located inside the collecting frame 81, and the discharging pipe 87 is arranged at the bottom of the collecting frame 81.

When people need to use the waste concrete to make mortar, people firstly pour the waste concrete into the collection frame 81, the waste concrete is in contact with the grinding block 86, the second motor 84 can be started to work, the output shaft of the second motor 84 rotates to drive the first rotating shaft 82 on the left side to rotate, and further drive the rear side gear 85 to rotate, the right side gear 85 rotates to drive the first rotating shaft 82 on the right side to rotate, the first rotating shaft 82 rotates to drive the grinding block 86 to rotate, the grinding block 86 rotates to grind the waste concrete, so that the waste concrete can be uniformly ground into powder, the ground sand falls into the loading frame 2 through the discharging pipe 87 to be filtered and stirred, the mortar can be made, people can intermittently add the waste concrete into the collection frame 81 without adding too much waste concrete at one time, the waste concrete is prevented from being crushed unevenly, and other devices are not needed to crush the waste concrete in the operation, the integration is more labor-saving, and the second motor 84 is turned off when not in use.

Tremble mechanism 9 including first stopper 90, turning block 91, wedge 92, connecting rod 93 and

buffer spring

94, 3 output shaft tops of first motor are equipped with turning block 91, the downside is equipped with first stopper 90 in the frame 2 of feeding, turning block 91 links to each other with first stopper 90 rotary type, 7 bottoms of filter screen are connected with a plurality of wedges 92 along circumference annular, be connected with three connecting rod 93 along circumference annular on the turning block 91, three connecting rod 93 all contacts with wedge 92, all be connected with buffer spring 94 between 7 bottom front and back both sides of filter screen and the frame 2 of feeding.

The sandy soil that finishes of smashing will drop to filter screen 7 on, first motor 3 output shaft rotates and drives turning block 91 and rotate, and then drive connecting rod 93 and rotate, connecting rod 93 rotates will with the contact of wedge 92 inclined plane, will drive wedge 92 downstream, and then drive filter screen 7 downstream, buffer spring 94 is compressed, when connecting rod 93 no longer with the contact of wedge 92 inclined plane, filter screen 7 will drive wedge 92 rebound under buffer spring 94's effect and reset, so move repeatedly alright make filter screen 7 form the shake, make the sandy soil that the sandy soil on filter screen 7 can even filter, the sandy soil of tiny granule just can drop, so the operation can filter sandy soil automatically, make the mortar consistency of making out more suitable.

Example 2

On the basis of the embodiment 1, as shown in fig. 1, 6, 7, 8, 9, 10 and 11, the water adding device further comprises a water adding mechanism 10, wherein the water adding mechanism 10 comprises connecting blocks 100, a water collecting frame 101, a water pump 102, a water outlet pipe 103 and a water valve 104, the connecting blocks 100 are arranged in the middle of the rear parts of the two support frames 80, the water collecting frame 101 is connected between the rear sides of the two connecting blocks 100, the water pump 102 is arranged in the middle of the rear part of the water collecting frame 101, the bottom of the water pump 102 is connected with a water outlet pipe 103, the tail end of the water outlet pipe 103 is communicated with the charging frame 2, and the water valve 104 is rotatably arranged on the lower side of the water outlet pipe 103.

Sandy soil is when filtering the stirring, people can pour clear water into the frame 101 that catchments, alright start water pump 102, make water pump 102 work will catchment the clear water pump pumping in the frame 101 to the outlet pipe 103 in, people can rotate water valve 104 and open, make clear water flow to in the frame 2 of feeding, after adding the clear water of suitable volume in the frame 2 of feeding, people can the antiport water valve 104 and close, puddler 4 rotates alright stir sandy soil, make sandy soil stir into the mortar, when people need continue to add the clear water, only need rotate water valve 104 and open can, after the mortar preparation finishes, close water pump 102 and water valve 104, it is more convenient when adding the clear water so operate, need not artifical spraying, and is more labor-saving.

The automatic feeding device is characterized by further comprising a dust removing mechanism 11, wherein the dust removing mechanism 11 comprises second supporting blocks 110, annular pipes 111, nozzles 112 and connecting pipes 113, the second supporting blocks 110 are symmetrically arranged on the upper portion of the loading frame 2 in the left-right direction, the annular pipes 111 are connected between the two second supporting blocks 110, the nozzles 112 are uniformly arranged on the annular pipes 111, the connecting pipes 113 are arranged on the rear sides of the annular pipes 111, and the connecting pipes 113 are communicated with the water pump 102.

Water pump 102 work still can be with the clear water pump send to connecting pipe 113 on, make the clear water flow to on the ring pipe 111 through connecting pipe 113, will follow shower nozzle 112 blowout, can play the effect of dust fall to the frame 2 outside of feeding, prevent that the dust scattered in the frame 2 of feeding from influencing the worker on next door, it is more sanitary, people close water valve 104 will not influence water pump 102, water pump 102 still can continue to pump the clear water to connecting pipe 113 on, after the mortar preparation finishes, people close water pump 102, the clear water will no longer be from shower nozzle 112 blowout.

The filter screen is characterized by further comprising a control mechanism 12, the control mechanism 12 comprises a third supporting block 120, a limiting rod 121, a material blocking block 122, a return spring 123, a second rotating shaft 124, a fourth supporting block 125, a third rotating shaft 126 and a reel 127, the upper sides of the front parts of the two supporting frames 80 are respectively provided with the third supporting block 120, the second rotating shaft 124 is rotatably arranged between the two third supporting blocks 120, the top of the blanking pipe 87 is provided with the limiting rod 121, the material blocking block 122 is slidably arranged on the limiting rod 121, the material blocking block 122 is slidably connected with the blanking pipe 87, the return spring 123 is connected between the material blocking block 122 and the limiting rod 121, the inner sides of the two third supporting blocks 120 are respectively provided with the fourth supporting block 125, the third rotating shaft 126 is rotatably arranged between the front parts of the two fourth supporting blocks 125, a reel 127 is arranged between the middle of the second rotating shaft 124 and the middle of the third rotating shaft 126, a pull rope 128 is connected between the top middle of the filter screen 7 and the upper side of the material blocking block 122, the pull cord 128 is slidably connected to two reels 127.

When more sandy soil is pushed on the filter screen 7, the sandy soil is not filtered immediately, so that the filter screen 7 moves downwards under the action of gravity, the pull rope 128 is pulled to move downwards, the reel 127, the second rotating shaft 124 and the third rotating shaft 126 are driven to rotate, the pull rope 128 further pulls the material blocking block 122 to move downwards, the return spring 123 is compressed, the material blocking block 122 blocks the blanking pipe 87, the sandy soil on the blanking pipe 87 does not slide off any more, when the filter screen 7 moves upwards and returns, the pull rope 128 is not pulled any more, the pull rope 128 is loosened, the material blocking block 122 moves upwards and returns under the action of the return spring 123, the pull rope 128 moves upwards and returns, the reel 127, the second rotating shaft 124 and the third rotating shaft 126 rotate reversely to return, the pull rope 128 moves upwards or downwards along with the movement of the filter screen 7, and the material blocking block 122 can move upwards and downwards intermittently, the phenomenon of accumulation caused by excessive sandy soil falling into the loading frame 2 can be prevented.

The material loading frame is characterized by further comprising a connecting mechanism 13, wherein the connecting mechanism 13 comprises a second limiting block 130, a sliding block 131 and an annular spring 132, the second limiting block 130 is arranged at the position, located at the top of the baffle 5, of the lower side of the front portion of the material loading frame 2, the sliding block 131 is arranged in the second limiting block 130 in a sliding mode, the annular spring 132 is connected between the sliding block 131 and the second limiting block 130, and the baffle 5 is connected with the sliding block 131 in a sliding mode.

After the mortar is manufactured, people can firstly move the baffle 5 to the front side to enable the baffle 5 not to be clamped with the charging frame 2 any more, then move the handle 6 to the right side to drive the baffle 5 to move to the right side so as to drive the slide block 131 to move to the right side, the annular spring 132 is compressed, people can firstly use a tool to clamp the baffle 5 to collect the mortar in the charging frame 2, after the mortar is collected, people take the tool down to enable the slide block 131 to drive the baffle 5 and the handle 6 to move to the left side for resetting under the action of the annular spring 132 so as to enable the baffle 5 to be aligned with the discharge hole, people can move the handle 6 to the rear side to drive the baffle 5 to move to the rear side so that the baffle 5 clamps the discharge hole to close the baffle 5, the annular spring 132 can play a limiting role on the baffle 5 under the matching action of the slide block 131, and the baffle 5 is prevented from being lost when the baffle 5 is taken out, and is safer.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides an utilize waste concrete preparation mortar device which characterized in that includes:

a base plate (1);

the charging frame (2) is arranged in the middle of the top of the bottom plate (1), and one side of the lower part of the charging frame (2) is provided with a discharge outlet;

the middle inside the bottom plate (1) is provided with the first motor (3);

the lower side of an output shaft of the first motor (3) is provided with a stirring rod (4) used for stirring crushed concrete, the stirring rod (4) is positioned inside the loading frame (2), and the output shaft of the first motor (3) is rotatably connected with the loading frame (2);

the baffle (5) is arranged on the discharge port in a sliding manner;

the handle (6) is arranged on one side of the baffle (5);

the upper part in the charging frame (2) is provided with a filter screen (7) in a sliding way for further filtering sand;

the top of the bottom plate (1) is provided with a crushing mechanism (8) for crushing concrete;

and the middle in the loading frame (2) is provided with a shaking mechanism (9) for shaking the filter screen (7).

2. An apparatus for making mortar using waste concrete according to claim 1, wherein the crushing means (8) comprises:

the top of the bottom plate (1) is symmetrically provided with the support frames (80), and the two support frames (80) are connected with the charging frame (2);

a collecting frame (81), wherein the collecting frame (81) is connected between the upper sides of the supporting frames (80);

the first rotating shaft (82) is symmetrically and rotatably arranged on the collecting frame (81);

the first supporting block (83) is arranged on one side of the collecting frame (81);

the second motor (84) is arranged at the top of the first supporting block (83), and the output shaft of the second motor (84) is connected with the first rotating shaft (82) on one side;

the gears (85) are arranged on one sides of the two first rotating shafts (82), and the two gears (85) are meshed;

the two first rotating shafts (82) are respectively provided with a grinding block (86) for grinding concrete, and the two grinding blocks (86) are positioned inside the collecting frame (81);

a blanking pipe (87), and the bottom of the collecting frame (81) is provided with the blanking pipe (87) used for conveying sand.

3. An apparatus for making mortar using waste concrete according to claim 2, wherein the shaking mechanism (9) comprises:

the top of an output shaft of the first motor (3) is provided with a rotating block (91);

the first limiting block (90) is arranged on the inner lower side of the loading frame (2), and the rotating block (91) is rotatably connected with the first limiting block (90);

the bottom of the filter screen (7) is annularly connected with a plurality of wedge blocks (92) along the circumferential direction;

the rotating block (91) is circumferentially and annularly connected with three connecting rods (93), and the three connecting rods (93) are all in contact with the wedge-shaped block (92);

the buffer springs (94) are connected between the two sides of the bottom of the filter screen (7) and the charging frame (2).

4. The apparatus for preparing mortar using waste concrete according to claim 3, further comprising a water adding mechanism (10), wherein the water adding mechanism (10) comprises:

the middle of one side of each of the two support frames (80) is provided with a connecting block (100);

the water collecting frame (101) is connected between one sides of the two connecting blocks (100) and used for storing clear water;

the middle of one side of the water collecting frame (101) is provided with the water pump (102);

the bottom of the water pump (102) is connected with a water outlet pipe (103) used for conveying clean water, and the tail end of the water outlet pipe (103) is communicated with the loading frame (2);

the water valve (104) is arranged on the lower side of the water outlet pipe (103) in a rotating mode.

5. The apparatus for preparing mortar from waste concrete according to claim 4, further comprising a dust removing mechanism (11), wherein the dust removing mechanism (11) comprises:

the second supporting block (110) is symmetrically arranged at the upper part of the charging frame (2);

the annular pipe (111) is connected between the two second supporting blocks (110);

a plurality of spray heads (112) for spraying clear water are uniformly arranged on the annular pipe (111);

a connecting pipe (113) is arranged on one side of the annular pipe (111), and the connecting pipe (113) is communicated with the water pump (102).

6. The apparatus for manufacturing mortar using waste concrete according to claim 5, further comprising a control means (12), wherein the control means (12) comprises:

the other sides of the two support frames (80) are provided with third support blocks (120);

a second rotating shaft (124), wherein the second rotating shaft (124) is rotatably arranged between the two third supporting blocks (120);

the top of the blanking pipe (87) is provided with a limiting rod (121);

the stop block (122) used for stopping the blanking pipe (87) is arranged on the limiting rod (121) in a sliding mode, and the stop block (122) is connected with the blanking pipe (87) in a sliding mode;

the return spring (123) is connected between the material blocking block (122) and the limiting rod (121);

the inner sides of the two third supporting blocks (120) are respectively provided with a fourth supporting block (125);

a third rotating shaft (126) is rotatably arranged between one sides of the two fourth supporting blocks (125);

a reel (127), wherein the reel (127) is arranged in the middle of the second rotating shaft (124) and the middle of the third rotating shaft (126);

the pull rope (128) is connected between the middle of the top of the filter screen (7) and the upper side of the material blocking block (122), and the pull rope (128) is connected with the two reels (127) in a sliding mode.

7. An apparatus for making mortar using waste concrete according to claim 6, further comprising a connecting mechanism (13), wherein the connecting mechanism (13) comprises:

a second limiting block (130), wherein the second limiting block (130) is arranged at the position, located at the top of the baffle (5), of one side of the charging frame (2);

the sliding block (131) is arranged in the second limiting block (130) in a sliding mode, and the baffle (5) is connected with the sliding block (131) in a sliding mode;

and the annular spring (132) is connected between the sliding block (131) and the second limiting block (130).

8. The apparatus for manufacturing mortar using waste concrete according to claim 1, wherein a plurality of dust discharge ports are formed at the outer side of the upper portion of the charging frame (2).