Construction waste processing apparatus

Abstract

The application discloses a building waste treatment device for house building, which comprises a tank body, a driving mechanism arranged on the tank body, a concrete crushing device arranged on the upper portion of the inner cavity of the tank body, a concrete grinding device arranged below the concrete crushing device, a first transmission mechanism connected with the driving mechanism, a second transmission mechanism connected with the concrete crushing device and the first transmission mechanism, a crushing unit of the concrete crushing device connected with the second transmission mechanism, a third transmission mechanism connected with the second transmission mechanism, and an output end of the third transmission mechanism connected with the concrete grinding device. The driving mechanism can drive the first, second and third transmission mechanisms to drive the concrete crushing device and the concrete grinding device to work synchronously. The device has a clever structure, and the concrete crushing device, the concrete grinding device and the screening device can work synchronously through one driving mechanism, so that the concrete waste can be effectively treated.

Description

Technical Field

[0001] This invention relates to the field of construction waste treatment technology, and more particularly to a construction waste treatment device for building construction. Background Technology

[0002] Construction projects generate a large amount of construction waste. Existing construction waste processing equipment, due to its simple structure, cannot easily separate lighter construction debris before crushing. This results in construction waste being mixed with recyclable materials such as gravel after crushing, affecting recycling quality and increasing the difficulty of subsequent processing. Furthermore, the process easily generates a large amount of dust, impacting both the environment and the health of workers.

[0003] Currently, a type of construction waste processing equipment utilizes a jet of hot air to dry the crushed powder generated from construction waste within a protective enclosure. This reduces the moisture content of the powder, preventing caking during continuous compression and ensuring optimal crushing performance. It also reduces the increased cylinder load caused by powder caking, minimizing abnormal wear and resource waste. However, the concrete crushing device used in this equipment still produces relatively large concrete blocks after crushing. Furthermore, the secondary grinding device cannot be synchronized with the concrete crushing device, and the screening of the crushed concrete cannot be synchronized with the secondary grinding device either. Therefore, step-by-step control is required. This not only increases the investment in control components but also fails to automatically adjust the processing efficiency of the secondary grinding and screening devices based on the crushing speed of the concrete.

[0004] Therefore, how to design a construction waste treatment device for housing construction that can solve the above problems is a topic that the inventor has devoted himself to researching. Summary of the Invention

[0005] The purpose of this invention is to provide a construction waste treatment device for building construction. The device has an ingenious structural design, in which a drive mechanism drives multiple transmission mechanisms to enable the concrete crushing device, concrete grinding device and screening device to work synchronously, so as to effectively treat concrete waste.

[0006] In order to achieve the above object, the technical solution of the present application is: a building waste treatment equipment for house building, which comprises a tank body, a driving mechanism is arranged on the tank body, a concrete crushing device is arranged on the upper part of the inner cavity of the tank body, a concrete grinding device is arranged below the concrete crushing device, the driving mechanism is connected with a first transmission mechanism, the first transmission mechanism is connected with a second transmission mechanism of the concrete crushing device, the second transmission mechanism is connected with a crushing unit of the concrete crushing device, the second transmission mechanism is connected with a third transmission mechanism, the output end of the third transmission mechanism is connected with the concrete grinding device, and the driving mechanism can drive the first, second and third transmission mechanisms to drive the concrete crushing device and the concrete grinding device to work synchronously.

[0007] Preferably, the first transmission mechanism comprises a driving gear mounted on the output end of the driving mechanism, the driving gear is engaged with a driven gear, the second transmission mechanism comprises a transmission shaft and a driving wheel, the transmission shaft is fixedly connected with the driven gear, and the driving wheel is fixedly connected with the transmission shaft.

[0008] Preferably, the third transmission mechanism comprises a transmission wheel, the transmission wheel and the driving wheel are connected together through a track belt, the transmission wheel is connected with a first driving bevel gear located in the tank body through a first rotating shaft, the first driving bevel gear is engaged with a first driven bevel gear, and the first driven bevel gear is rotatably connected to a first support frame arranged in the inner cavity of the tank body.

[0009] Preferably, the concrete grinding device comprises a grinding ring fixed to the inner cavity wall of the tank body and a grinding column arranged in the inner cavity of the grinding ring, the upper end and the lower end of the grinding column are rotatably mounted between the first driven bevel gear and a second support frame arranged in the inner cavity of the tank body, the second support frame is located below the first driven bevel gear, and the grinding column rotates with the first driven bevel gear.

[0010] Preferably, the grinding column is a conical column with the upper end smaller in size than the lower end, and the inner cavity of the grinding ring is a conical column cavity with the upper end larger in size than the lower end.

[0011] Preferably, the second support frame comprises a hollow support frame body, a plurality of connecting ribs are arranged on the outer edge of the support frame body, the other ends of the connecting ribs are fixed to the lower part of the inner cavity wall of the tank body, and a plurality of vertical guide grooves or guide holes are arranged on the inner cavity side wall of the support frame body.

[0012] Preferably, a screening device is further included, which is arranged below the concrete grinding device, and comprises a filter screen slidably mounted in the inner cavity of the support frame body, and the lower part of the support frame body passes through the center of the filter screen.

[0013] Preferably, the screening device further comprises a fourth transmission mechanism capable of vibrating the filter screen up and down, which comprises a second rotating shaft connected with the lower end of the roller, a second driving bevel gear mounted at the lower end of the second rotating shaft, a second driven bevel gear engaged with the second driving bevel gear, a third rotating shaft mounted on the second driven bevel gear, the second driving bevel gear and the second driven bevel gear are located in the inner cavity of the support frame body, one end of the pressure rod is rotatably connected with the third rotating shaft, the other end of the pressure rod abuts against the upper surface of a sliding plate slidably mounted in the inner cavity of the support frame body, a first elastic element is arranged between the sliding plate and the bottom of the inner cavity of the support frame body, and the sliding plate is connected with the filter screen.

[0014] Preferably, the outer edge of the sliding plate is provided with at least one slide rod, each of the slide rods is slidably arranged on a guide groove or a guide hole, the filter screen is connected with the slide rods, when the second rotating shaft rotates with the roller, the pressure rod rotates with the third rotating shaft and presses the sliding plate downward, the sliding plate drives the filter screen to move downward along the slide rods along the guide groove or the guide hole, when the pressure rod no longer presses the sliding plate, the sliding plate is reset under the rebounding action of the first elastic element, so that the filter screen vibrates up and down.

[0015] Preferably, a limiting mechanism is arranged on the third rotating shaft to limit the movement track of the pressure rod, the limiting mechanism comprises a push ring mounted on the third rotating shaft, a first limiting unit limiting the rotation of the pressure rod, a second limiting unit limiting the rotation of the push ring, a locking unit allowing the pressure rod to be fixedly connected with the third rotating shaft, and a reset unit allowing the pressure rod to be translated and reset, the push ring abuts against the outer side of the pressure rod, the push ring is connected with the first limiting unit, when the third rotating shaft drives the other end of the pressure rod to move downward to a predetermined position, the first limiting unit limits the further rotation of the pressure rod, and drives the push ring to push the pressure rod to translate along the axis direction of the third rotating shaft, when the translation reaches a predetermined position, the pressure rod is fixed with the third rotating shaft through the locking unit, and rotates to a predetermined angle together with the third rotating shaft, then the locking unit is unlocked, the connecting rod, the push ring and the pressure rod are reset, and the cycle is repeated.

[0016] Preferably, the first limiting unit comprises a ring groove arranged on the outer surface of the third rotating shaft, the ring groove is located at the outer side of the second driven bevel gear, a transmission sleeve is arranged on the ring groove, the outer surface of the transmission sleeve is provided with a first embedding groove and a second embedding groove which are connected in series, one end of a connecting rod is slidably connected in the first embedding groove, the other end of the connecting rod is connected with the inner side of a push ring sleeved on the transmission sleeve, a pressing rod is arranged on the transmission sleeve, the push ring abuts against the outer side of the pressing rod, when the third rotating shaft rotates, the push ring pushes the pressing rod to translate along the outer surface of the transmission sleeve.

[0017] Preferably, the locking unit comprises a plurality of fixed embedding rods arranged on the ring groove in a circumferential direction and a plurality of movable embedding rods arranged on the inner side of the pressing rod in a circumferential direction, the plurality of fixed embedding rods are arranged on the inner side of the transmission sleeve, and the plurality of movable embedding rods can be inserted and fixed with the plurality of fixed embedding rods when the pressing rod translates.

[0018] Preferably, the embedding groove is a special-shaped ring groove with a curved structure, the overall width of the embedding groove is greater than the cross-sectional width of the embedding groove itself, and the connecting rod and the push ring are reset when the connecting rod moves to a predetermined position of the embedding groove.

[0019] Preferably, the second limiting unit comprises a plurality of telescopic rods arranged in a circumferential direction and arranged on the outer side of the push ring, the other end of each telescopic rod is fixed in the inner cavity of the support frame body, and a second elastic element is arranged on each telescopic rod.

[0020] Preferably, the reset unit comprises a fixed ring arranged on the third rotating shaft and close to the second driven bevel gear, and a third elastic element is arranged between the fixed ring and the pressing rod.

[0021] Preferably, a sealing door is arranged on the lower part of the sidewall of the tank body.

[0022] After the above scheme is adopted, the building waste treatment equipment for house building has the following beneficial effects:

[0023] 1. The concrete crushing device preliminarily crushes the concrete to obtain concrete particles, and the concrete grinding device further grinds the concrete particles to obtain concrete powder, so that the treated building waste can be directly used for the reproduction of concrete, and the crushing of the concrete crushing device and the grinding of the concrete grinding device are synchronously controlled, the speed and efficiency of the two devices for treating the concrete particles are improved, the building waste treated by the concrete crushing device is prevented from blocking the equipment, the treatment speed of the concrete grinding device is reduced when the treatment speed of the concrete crushing device is reduced, the concrete grinding device is prevented from doing useless work, and the concrete grinding device does not need to be controlled by an additional control element.

[0024] 2. The concrete crushing device preliminarily crushes the concrete to obtain concrete particles, and the concrete grinding device further grinds the concrete particles to obtain concrete powder, so that the treated building waste can be directly used for the reproduction of concrete, and the crushing of the concrete crushing device and the grinding of the concrete grinding device are synchronously controlled, the speed and efficiency of the two devices for treating the concrete particles are improved, the building waste treated by the concrete crushing device is prevented from blocking the equipment, the treatment speed of the concrete grinding device is reduced when the treatment speed of the concrete crushing device is reduced, the concrete grinding device is prevented from doing useless work, and the concrete grinding device does not need to be controlled by an additional control element.

[0025] 3. The fourth transmission mechanism is provided with a limiting mechanism on the third rotating shaft, when the third rotating shaft drives the other end of the pressing rod to move downward to a predetermined position, the first limiting unit of the limiting mechanism limits the further rotation of the pressing rod, and drives the push ring to push the pressing rod to translate along the third rotating shaft axis direction, when the pressing rod translates to a predetermined position, the pressing rod is fixed with the third rotating shaft through the locking unit and rotates to a predetermined angle together with the third rotating shaft, at this time, the locking unit is unlocked, the connecting rod, the push ring and the pressing rod are reset, so that the pressing rod can only repeatedly rotate a predetermined angle, the second driving bevel gear of the fourth transmission mechanism is prevented from interfering with the movement of the pressing rod, the sliding plate and the filter screen can be fully expanded in a small space, and the screening efficiency and effect of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a front view of an embodiment of the building waste treatment equipment for house building of the application;

[0027] Figure 2 is a right view of an embodiment of the building waste treatment equipment for house building of the application;

[0028] Figure 3 is a sectional view of an embodiment of the building waste treatment equipment for house building of the application;

[0029] Figure 4 This is a three-dimensional structural diagram of the first and second support frames of a construction waste treatment device for building construction according to an embodiment of the present invention, cut open from the tank body;

[0030] Figure 5 This is a schematic diagram of the three-dimensional structure of a filter screen according to an embodiment of the present invention;

[0031] Figure 6 This is a three-dimensional structural diagram of the second support frame cut open according to another embodiment of the present invention;

[0032] Figure 7 This is a three-dimensional structural schematic diagram of the fourth transmission mechanism according to another embodiment of the present invention;

[0033] Figure 8 This is a three-dimensional structural schematic diagram of a limiting mechanism according to another embodiment of the present invention;

[0034] Figure 9 This is a three-dimensional structural diagram of the limiting mechanism without the pressure bar, according to another embodiment of the present invention;

[0035] Figure 10 This is a three-dimensional structural schematic diagram of the transmission sleeve according to another embodiment of the present invention.

[0036] Numbering Explanation:

[0037] 1-Tank body 2-Sealed door

[0038] 3-Concrete crushing device 4-Electric motor

[0039] 5-Driving gear; 6-Driven gear

[0040] 7-Drive shaft 8-Drive wheel

[0041] 9-Drive wheel 10-Track

[0042] 11-First rotating shaft 12-First driving bevel gear

[0043] 13-First driven bevel gear 14-First support frame

[0044] 15-First support frame body 16-First connecting rib

[0045] 17-Grinding ring 18-Grinding column

[0046] 19-Second support frame 20-Second support frame body

[0047] 21-Second connecting rib 22-Guide hole

[0048] 23-Filter screen 24-Second rotating shaft

[0049] 25 - second driving bevel gear 26 - second driven bevel gear

[0050] 27 - third rotating shaft 28 - pressing rod

[0051] 29 - sliding plate 30 - spring

[0052] 31 - sliding rod 32 - pushing ring

[0053] 33 - ring groove 34 - transmission sleeve

[0054] 35 - embedding groove 36 - connecting rod

[0055] 37 - telescopic rod 38 - spring

[0056] 39 - fixed embedding rod 40 - moving embedding rod

[0057] 41 - fixed ring 42 - disc spring DETAILED DESCRIPTION

[0058] The present application will be illustrated below according to the embodiments shown in the drawings. The embodiments disclosed this time can be considered as exemplary in all aspects and are not limited. The scope of the present application is not limited by the description of the embodiments below, but is only shown by the scope of the claims, and includes all modifications within the same meaning and within the scope of the claims.

[0059] The structure of the building waste treatment equipment for housing construction will be described below in combination with specific embodiments.

[0060] As shown in Figures 1-5 , an embodiment of the building waste treatment equipment for housing construction includes a cylindrical tank body 1, a sealing door 2 is installed at the lower part of the side wall of the tank body 1, which is used to unload the final treated concrete powder. A concrete crushing device 3 is arranged at the upper part of the inner cavity of the tank body 1, and a concrete grinding device is arranged below the concrete crushing device 3. A driving mechanism is installed at the upper end of the tank body 1, and the driving mechanism of the embodiment adopts a motor 4.

[0061] The motor 4 is connected with a first transmission mechanism. The first transmission mechanism of the embodiment includes a driving gear 5 installed on the output shaft of the motor 4 and a driven gear 6 engaged with the driving gear 5. The first transmission mechanism is connected with a second transmission mechanism of the concrete crushing device 3. The second transmission mechanism includes a transmission shaft 7 and a driving wheel 8, the transmission shaft 7 is fixedly connected to the center of the driven gear 6, and the driving wheel 8 is fixedly connected to the transmission shaft 7. Referring to Figure 2 and Figure 4 , the transmission shaft 7 can rotate through the side wall of the tank body 1. The second transmission mechanism is connected with a crushing unit of the concrete crushing device, specifically, the crushing unit includes a groove wheel installed on the transmission shaft 7, and an eccentric shaft for crushing concrete is installed on the groove wheel.

[0062] The second transmission mechanism is connected with the third transmission mechanism. Specifically, the third transmission mechanism comprises a transmission wheel 9, which is connected with the belt drive wheel 8 of the second transmission mechanism through a track 10. Referring to Figure 4 As shown, the transmission wheel 9 is connected with the center of a first driving bevel gear 12 located in the inner cavity of the tank body 1 through a first rotating shaft 11. The first rotating shaft 11 is rotatable through the side wall of the tank body 1. The first driving bevel gear 12 is engaged with a first driven bevel gear 13, which is rotatably connected to a first support frame 14 arranged in the inner cavity of the tank body 1, and the first support frame 14 is located below the concrete crushing device. The first support frame 14 comprises a circular annular first support frame body 15, and the first driven bevel gear 13 is rotatably mounted in the inner cavity of the first support frame body 15, and the first support frame body 15 is connected to the upper part of the inner cavity of the tank body 1 through a plurality of first connecting ribs 16.

[0063] The output end of the third transmission mechanism, i.e. the first driven bevel gear 13, is connected with the concrete grinding device. The concrete grinding device in this embodiment comprises a grinding ring 17 fixed to the middle part of the inner cavity wall of the tank body 1 and a grinding column 18 arranged in the inner cavity of the grinding ring 17, and the upper and lower ends of the grinding column 18 are rotatably mounted between the first driven bevel gear 13 and a second support frame 19 fixed to the lower part of the inner cavity of the tank body 1. Referring to Figure 3 As shown, the grinding column 18 is a conical column with the upper end smaller in size than the lower end, and the inner cavity of the grinding ring 17 is a conical column cavity with the upper end larger in size than the lower end.

[0064] The second support frame 19 is located below the first driven bevel gear 13, and the grinding column 18 rotates with the first driven bevel gear 13. When the preliminarily crushed concrete enters the area between the grinding ring 17 and the grinding column 18, the grinding ring 17 and the grinding column 18 cooperate to grind the preliminarily crushed concrete.

[0065] The second support frame 19 comprises a hollow cylindrical second support frame body 20, and a plurality of second connecting ribs 21 are arranged on the outer edge of the second support frame body 20, and the second support frame body 20 is fixed to the lower part of the inner cavity of the tank body 1 through the plurality of second connecting ribs 21. A plurality of vertical guide grooves or guide holes are arranged on the circumferential side wall of the inner cavity of the support frame body 21, and a plurality of guide holes 22 are arranged in this embodiment.

[0066] The embodiment is used to finely grind the construction waste. The construction waste is conveyed to the concrete crushing device 3 by the belt conveyor, and the motor 4 is started. The motor 4 drives the driving gear 5 to rotate, the driving gear 5 drives the driven gear 6 to rotate, the transmission shaft 7 on the driven gear 6 drives the groove wheel driving eccentric shaft of the concrete crushing device 3 to rotate, so that the concrete crushing device 3 preliminarily crushes the concrete to obtain concrete particles. At the same time, the transmission shaft 7 drives the driving wheel 8 on it to rotate, the driving wheel 8 drives the transmission wheel 9 through the track 10, the first transmission shaft 11 on the transmission wheel 9 drives the first driving bevel gear 12 to rotate, the first driving bevel gear 12 drives the first driven bevel gear 13 to rotate, so that the first driven bevel gear 13 drives the roller 18 to rotate, the roller 18 grinds the concrete particles together with the grinding ring 17, so that the concrete particles are further finely ground to obtain concrete powder, so that the purpose of finely grinding the concrete is achieved, and the treated construction waste can be directly used for the reproduction of the concrete. In this process, the rotation of the roller 18 can be controlled synchronously with the concrete crushing device 3, that is, when the processing speed of the concrete crushing device 3 is increased, the rotation speed of the roller 18 and the efficiency of grinding the concrete particles are also increased, so that the treated construction waste after the concrete crushing device 3 is prevented from blocking the equipment, and when the processing speed of the concrete crushing device 3 is reduced, the rotation speed of the roller 18 is also reduced, so that the roller 18 is prevented from doing useless work, and the rotation and rotation speed of the roller 18 are controlled without additional control elements.

[0067] In combination Figures 4-10 As shown in another embodiment, the building waste treatment equipment for house building of the present application further comprises a screening device, which is arranged below the concrete grinding device. The screening device comprises a filter screen 23 and a fourth transmission mechanism capable of driving the filter screen 23 to vibrate up and down. The filter screen 23 is circular and matches the cross-sectional shape of the inner cavity of the tank body 1. It is slidably installed at the lower part of the inner cavity of the tank body 1, and the lower part of the second support frame 19 passes through the center of the filter screen 23.

[0068] The fourth transmission mechanism comprises a second transmission shaft 24 connected with the lower end of the roller 18. The lower end of the second transmission shaft 24 is provided with a second driving bevel gear 25. The second driving bevel gear 25 is engaged with a second driven bevel gear 26. The center of the second driven bevel gear 26 is fixedly connected with a third transmission shaft 27 arranged horizontally. The second driving bevel gear 25 and the second driven bevel gear 26 are located in the inner cavity of the second support frame body 20. Figure 6 As shown in the figure, the two ends of the third transmission shaft 27 can rotate through the second support frame body 20.

[0069] The third rotating shaft 27 is rotatably connected with one end of the pressing rod 28, and the third rotating shaft 27 and the pressing rod 28 are cross arranged. The other end of the pressing rod 28 abuts against the upper surface of the sliding plate 29, the sliding plate 29 is slidingly installed in the inner cavity of the second support frame body 20, and a first elastic element is arranged between the sliding plate 29 and the bottom of the inner cavity of the second support frame body 20. In the embodiment, the first elastic element is a spring 30.

[0070] Referring to Figure 5 , Figure 6 As shown in the figure, the outer edge of the sliding plate 29 is provided with a plurality of slide rods 31, each of which is slidingly arranged on a guide hole 22 of the second support frame body 20, and the filter screen 23 is connected with the plurality of slide rods 31.

[0071] In the working process of vibrating the filter screen 23, when the second rotating shaft 24 rotates with the roller 18, the pressing rod 28 is pressed downward with the rotation of the third rotating shaft 27, the sliding plate 29 drives the filter screen 23 to move downward along the guide hole 22 with the plurality of slide rods 31, and when the pressing rod 28 no longer presses the sliding plate 29, the sliding plate 29 is reset under the rebounding action of the spring 30, so that the filter screen 23 vibrates up and down. Further, the concrete powder on the filter screen 23 is scattered, the efficiency of screening the concrete powder by the filter screen 23 is improved, the grinding of the roller 18 and the screening of the concrete powder are synchronously controlled, without step-by-step control, further avoiding the investment of control elements, and avoiding the blockage of the filter screen 23 by the concrete powder, further avoiding the blockage of the equipment.

[0072] In combination with Figures 7-10 As shown in the figure, in another embodiment, a limiting mechanism for limiting the movement track of the pressing rod 28 is arranged on the third rotating shaft 27. The limiting mechanism includes a pushing ring 32 installed on the third rotating shaft 27, a first limiting unit for limiting the rotation of the pressing rod 28, a second limiting unit for limiting the rotation of the pushing ring 32, a locking unit for fixing the connection between the pressing rod 28 and the third rotating shaft 27, and a resetting unit for resetting the translation of the pressing rod 28. The pushing ring 32 abuts against the outer side surface of the pressing rod 28, and the pushing ring 32 is connected with the first limiting unit.

[0073] The first limiting unit includes a ring groove 33 arranged on the outer surface of the third rotating shaft 27, the ring groove 33 is located on the outer side of the second driven bevel gear 26, a transmission sleeve 34 is arranged on the outer side of the ring groove 33, the outer surface of the transmission sleeve 34 is provided with a first and second continuous embedding groove 35, in combination with Figure 10As shown, the embedding slot 35 is a special-shaped ring slot with a curved structure, and the curved structure of the embodiment is a Z-shaped structure. The overall width W1 of the embedding slot 35 is much larger than the cross-sectional width W2 thereof. The embedding slot 35 is in sliding connection with one end of the connecting rod 36, and the other end of the connecting rod 36 is connected to the inner side of the push ring 32 sleeved on the transmission sleeve 34. The pressing rod 28 is sleeved on the transmission sleeve 34, and the push ring 32 abuts against the outer side of the pressing rod 28. When the third rotating shaft 27 rotates, the push ring 32 will push the pressing rod 28 to translate along the outer surface of the transmission sleeve 34.

[0074] The second limiting unit includes a plurality of telescopic rods 37 arranged in a circumferential direction on the outer side of the push ring 32, and the other end of each telescopic rod 37 is fixed to the inner cavity of the second support frame body 20. A second elastic element is respectively mounted on each telescopic rod 37, and the second elastic element of the embodiment is a spring 38.

[0075] The locking unit includes a plurality of fixed embedding rods 39 arranged in a circumferential direction on the ring slot 33 close to the inner side, and a plurality of moving embedding rods 40 arranged in a circumferential direction on the inner side of the pressing rod 28. The plurality of fixed embedding rods 39 are arranged in a spaced manner with the transmission sleeve 34. The length of the fixed embedding rod 39 is one fourth of the width W1 of the embedding slot 28. When the plurality of moving embedding rods 40 translate with the pressing rod 28, the plurality of moving embedding rods 40 can be inserted and fixed with the plurality of fixed embedding rods 39.

[0076] The reset unit includes a fixed ring 41 arranged on the third rotating shaft 27 close to the second driven bevel gear 26. The third elastic element is arranged between the fixed ring 41 and the pressing rod 28, and the third elastic element of the embodiment is a disc spring 42. When the connecting rod 36 moves to the predetermined position of the embedding slot 35, the connecting rod 36 and the push ring 32 will be directly reset by the rebounding action of the disc spring 42 of the reset unit.

[0077] Specifically, in the process of limiting the movement track of the pressing rod 28, the rotation of the third rotating shaft 27 drives the synchronous rotation of the transmission sleeve 34 in the embedded groove 35, so that the side wall of the embedded groove 35 on the transmission sleeve 34 extrudes the connecting rod 36, and the push ring 32 connected by the connecting rod 36 cannot rotate due to the limiting of the plurality of telescopic rods 37, thereby indirectly making the connecting rod 36 unable to rotate. The extrusion force of the Z-shaped structure of the side wall of the embedded groove 35 on the connecting rod 36 makes the connecting rod 36 bear an axial component force along the third rotating shaft 27, so that the connecting rod 36 is extruded and translated by the embedded groove 35, and drives the push ring 32 to translate and stretch the plurality of springs 38, thereby making the push ring 32 push the pressing rod 28 to translate in the axial direction of the third rotating shaft 27. When the translation distance of the pressing rod 28 is three quarters of the overall width W1 of the embedded groove 35, with the further movement of the push ring 32 to push the pressing rod 28, the moving embedded rods 40 on the inner surface of the pressing rod 28 will be inserted and fixed with the plurality of fixed embedded rods 39 on the embedded groove 35, so that the pressing rod 28 rotates synchronously with the third rotating shaft 27. However, when the connecting rod 36 moves to the edge of the Z-shaped structure of the embedded groove 35, since the embedded groove 35 is connected at the beginning and the end, the connecting rod 36 and the push ring 32 will be directly reset by the plurality of springs 38. At this time, the restriction of the pressing rod 28 and the disc spring 42 is released, so that the pressing rod 28 is reset under the rebound of the disc spring 42, and the plurality of moving embedded rods 40 are separated from the plurality of fixed embedded rods 39, so that the pressing rod 28 is no longer rotated synchronously with the third rotating shaft 27. Thus, the pressing rod 28 can only rotate repeatedly by 90°, avoiding the interference of the second driving helical gear 25 with the movement of the pressing rod 28, achieving the purpose of fully expanding the moving range of the sliding plate 29 and the filter screen 23 in a small space, and improving the screening efficiency and effect of the equipment.

[0078] The application is used for treating the building waste produced by the house building. The building waste is transported to the concrete crushing device 3 by the belt conveyor, and the motor 4 is started. The motor 4 drives the driving gear 5 to rotate, the driving gear 5 drives the driven gear 6 to rotate, the transmission shaft 7 on the driven gear 6 drives the groove wheel driving eccentric shaft of the concrete crushing device 3 to rotate, so that the concrete crushing device 3 preliminarily crushes the concrete, and the concrete particles are obtained. At the same time, the transmission shaft 7 drives the driving wheel 8 on it to rotate, the driving wheel 8 drives the transmission wheel 9 through the track 10, the first transmission shaft 11 on the transmission wheel 9 drives the first driving bevel gear 12 to rotate, the first driving bevel gear 12 drives the first driven bevel gear 13 to rotate, so that the first driven bevel gear 13 drives the roller 18 to rotate, the roller 18 grinds the concrete particles with the grinding ring 17, so that the concrete particles are further crushed, the concrete powder is obtained, the purpose of sufficiently refining the concrete is achieved, the treated building waste can be directly used for the reproduction of the concrete, and the rotation of the roller 18 can be controlled synchronously with the concrete crushing device 3. That is, when the treatment speed of the concrete crushing device 3 is increased, the rotation speed of the roller 18 and the grinding efficiency of the concrete particles are also increased, so that the building waste treated by the concrete crushing device 3 is prevented from blocking the equipment. When the treatment speed of the concrete crushing device 3 is reduced, the rotation speed of the roller 18 is also reduced, so that the roller 18 is prevented from doing useless work, and the rotation and rotation speed of the roller 18 are controlled without additional control elements.

[0079] In the process of generating the concrete powder, the concrete powder falls through the gap between the grinding ring 17 and the roller 18 to the filter screen 23, and the rotation of the roller 18 drives the second transmission shaft 24 to rotate synchronously, so that the second driving bevel gear 25 on the second transmission shaft 24 drives the second driven bevel gear 26 to rotate, the third transmission shaft 27 on the second driven bevel gear 26 drives the pressing rod 28 to rotate indirectly, one end of the pressing rod 28 presses the top surface of the sliding plate 29, the sliding plate 29 is lowered and presses the spring 30, and the sliding plate 29 drives the filter screen 23 to descend through the slide rod 31. When the pressing rod 28 no longer presses the sliding plate 29, the sliding plate 29 is reset under the rebounding action of the spring 30, the filter screen 23 is vibrated up and down, the concrete powder on the filter screen 23 is scattered, the efficiency of screening the concrete powder by the filter screen 23 is improved, the grinding of the roller 18 and the screening of the concrete powder are synchronously controlled, the step-by-step control is not needed, the investment of the control elements is further avoided, the concrete powder is prevented from blocking the filter screen 23, and the equipment is further prevented from being blocked.

[0080] In the process of rotating the pressure bar 28 driven by the third rotating shaft 27, the rotation of the third rotating shaft 27 will drive the transmission sleeve 34 in the ring groove 33 to rotate synchronously, so that the side wall of the embedded groove 35 on the transmission sleeve 34 extrudes the connecting rod 36, and the push ring 32 connected by the connecting rod 36 cannot rotate due to the limiting of the telescopic rod 37, thereby indirectly making the connecting rod 36 unable to rotate. The extrusion force of the Z-shaped structure of the side wall of the embedded groove 35 on the connecting rod 36 makes the connecting rod 36 receive an axial component force along the third rotating shaft 27, so that the connecting rod 36 is extruded and translated by the embedded groove 35 and pushes the push ring 32 to translate and stretch the spring 38, thereby making the push ring 32 push the pressure bar 28 to translate, until the translation distance of the pressure bar 28 is three quarters of the overall width W1 of the embedded groove 35, and with the further movement of the push ring 32 to push the pressure bar 28, the plurality of moving embedded rods 40 on the inner surface of the pressure bar 28 will be inserted with the fixed embedded rods 39 on the ring groove 33. At this time, since the plurality of moving embedded rods 40 are inserted and fixed with the plurality of fixed embedded rods 39, the pressure bar 28 will rotate synchronously with the third rotating shaft 27, and when the connecting rod 36 moves to the edge of the width of the embedded groove 35, since the embedded groove 35 is connected at the beginning and the end, the connecting rod 36 and the push ring 32 will be directly reset by the spring 38. At this time, the restriction of the pressure bar 28 and the disc spring 42 is released, so that the pressure bar 28 is reset under the rebound of the disc spring 42, and the moving embedded rod 40 is separated from the fixed embedded rod 39, so that the pressure bar 28 is no longer rotated synchronously with the third rotating shaft 27. Thus, the pressure bar 28 can only be repeatedly rotated by 90°, avoiding the interference of the second driving helical gear 25 with the movement of the pressure bar 28, achieving the purpose of fully expanding the moving range of the sliding plate 29 and the filter screen 23 in a small space, improving the screening efficiency and effect of the equipment, and completing the operation.

[0081] The above-described embodiments are merely preferred embodiments of the present application and are not intended to limit the scope of the present application. Various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art without departing from the design spirit of the present application shall fall within the protection scope of the claims of the present application.

Claims

1. A construction waste treatment device for building construction, characterized in that, The device includes a tank body, a drive mechanism on the tank body, a concrete crushing device on the upper part of the inner cavity of the tank body, a concrete grinding device below the concrete crushing device, a drive mechanism connected to a first transmission mechanism, a first transmission mechanism connected to a second transmission mechanism of the concrete crushing device, a second transmission mechanism connected to a crushing unit of the concrete crushing device, a second transmission mechanism connected to a third transmission mechanism, and an output end of the third transmission mechanism connected to the concrete grinding device. The drive mechanism can drive the first, second, and third transmission mechanisms to make the concrete crushing device and the concrete grinding device work synchronously. The second transmission mechanism includes a drive wheel, and the third transmission mechanism includes a transmission wheel. The transmission wheel and the drive wheel are connected together by a track. The transmission wheel is connected to a first driving bevel gear located inside the tank through a first rotating shaft. The first driving bevel gear meshes with a first driven bevel gear. The concrete grinding device includes a grinding ring fixed to the inner wall of the tank and a grinding column disposed in the inner cavity of the grinding ring. The upper and lower ends of the grinding column are rotatably installed between the first driven bevel gear and the second support frame disposed in the inner cavity of the tank. The second support frame includes a hollow support frame body. It also includes a screening device, which is disposed below the concrete grinding device, and the screening device includes a filter screen; The screening device further includes a fourth transmission mechanism that can drive the filter screen to vibrate up and down. The fourth transmission mechanism includes a second rotating shaft connected to the lower end of the grinding column. A second driving bevel gear is installed at the lower end of the second rotating shaft. The second driving bevel gear meshes with a second driven bevel gear. A third rotating shaft is installed on the second driven bevel gear. The second driving bevel gear and the second driven bevel gear are located in the inner cavity of the support frame body. The third rotating shaft is rotatably connected to one end of the pressure rod. The other end of the pressure rod abuts against the top of the sliding plate. The sliding plate is slidably installed in the inner cavity of the support frame body. A first elastic element is provided between the sliding plate and the bottom of the inner cavity of the support frame body. The sliding plate is connected to the filter screen. The third rotating shaft is provided with a limiting mechanism to restrict the movement trajectory of the pressure rod. The limiting mechanism includes a push ring installed on the third rotating shaft, a first limiting unit to restrict the rotation of the pressure rod, a second limiting unit to restrict the rotation of the push ring, a locking unit to connect and fix the pressure rod to the third rotating shaft, and a reset unit to allow the pressure rod to be translated and reset. The first limiting unit includes an annular groove disposed on the outer surface of the third rotating shaft. The annular groove is located outside the second driven bevel gear. A transmission sleeve is disposed on the annular groove. The outer surface of the transmission sleeve has a slot that is open from end to end. One end of the connecting rod is slidably connected to the slot. The other end of the connecting rod is connected to the inner side of a push ring sleeved on the transmission sleeve. The pressure rod is located on the transmission sleeve. The push ring abuts against the outer side of the pressure rod. When the third rotating shaft rotates, the push ring will push the pressure rod to translate along the outer surface of the transmission sleeve.

2. The construction waste treatment equipment for building construction as described in claim 1, characterized in that, The first transmission mechanism includes a drive gear mounted on the output end of the drive mechanism, the drive gear meshing with a driven gear. The second transmission mechanism also includes a transmission shaft fixedly connected to the driven gear, the drive wheel fixedly connected to the transmission shaft, and the crushing unit includes a grooved wheel mounted on the transmission shaft, with an eccentric shaft for crushing concrete mounted on the grooved wheel.

3. The construction waste treatment equipment for building construction as described in claim 2, characterized in that, The first driven bevel gear is rotatably connected to a first support frame disposed in the inner cavity of the tank.

4. The construction waste treatment equipment for building construction as described in claim 3, characterized in that, The second support frame is located below the first driven bevel gear. The roller rotates with the first driven bevel gear. When the initially crushed concrete enters between the roller ring and the roller, the roller ring and the roller cooperate to grind the initially crushed concrete.

5. The construction waste treatment equipment for building construction as described in claim 4, characterized in that, The grinding column is a conical column with an upper end dimension smaller than the lower end dimension, and the inner cavity of the grinding ring is a conical cylindrical cavity with an upper end dimension larger than the lower end dimension.

6. The construction waste treatment equipment for building construction as described in claim 4, characterized in that, The outer edge of the support frame body is provided with multiple connecting ribs, and the other end of the multiple connecting ribs is fixed to the lower part of the inner cavity wall of the tank. The inner cavity side wall of the support frame body is provided with multiple vertical guide grooves or guide holes.

7. The construction waste treatment equipment for building construction as described in claim 6, characterized in that, The filter screen is slidably installed in the inner cavity of the tank, and the lower part of the support frame body passes through the center of the filter screen.

8. The construction waste treatment equipment for building construction as described in claim 6, characterized in that, The outer edge of the sliding plate is provided with at least one sliding rod, and each sliding rod is slidably disposed on a guide groove or guide hole. The filter screen is connected to the sliding rod. When the second rotating shaft rotates with the rolling column, it drives the pressure rod to rotate with the third rotating shaft and press down on the sliding plate. The sliding plate drives the filter screen to move downward along the guide groove or guide hole with the sliding rod. When the pressure rod stops pressing the sliding plate, the sliding plate resets under the rebound action of the first elastic element, causing the filter screen to vibrate up and down.

9. The construction waste treatment equipment for building construction as described in claim 1, characterized in that, The push ring abuts against the outside of the pressure rod and is connected to the first limiting unit. When the third rotating shaft drives the other end of the pressure rod to move down to a predetermined position, the first limiting unit restricts the pressure rod from rotating further and drives the push ring to push the pressure rod to translate along the axis of the third rotating shaft. When it translates to the predetermined position, the pressure rod is fixed together with the third rotating shaft by the locking unit and rotates together with the third rotating shaft to a predetermined angle. Then the locking unit unlocks, and the connecting rod, the push ring, and the pressure rod are reset. This cycle repeats.

10. The construction waste treatment equipment for building construction as described in claim 1, characterized in that, The locking unit includes a plurality of fixed inserts spaced circumferentially on the annular groove and a plurality of movable inserts spaced circumferentially on the inner side of the pressure rod. The plurality of fixed inserts are disposed on the inner side of the transmission sleeve. When the plurality of movable inserts move with the pressure rod, they can be inserted and fixed to each other with the plurality of fixed inserts.

11. The construction waste treatment equipment for building construction as described in claim 1, characterized in that, The groove is an irregularly shaped annular groove with a curved structure. The overall width of the groove is greater than its cross-sectional width. When the connecting rod moves to the predetermined position of the groove, the connecting rod and the push ring are reset.

12. The construction waste treatment equipment for building construction as described in claim 6, characterized in that, The second limiting unit includes a plurality of telescopic rods arranged circumferentially at intervals on the outside of the push ring, the other end of each telescopic rod being fixed to the inner cavity of the support frame body, and a second elastic element being installed on each telescopic rod.

13. The construction waste treatment equipment for building construction as described in claim 1, characterized in that, The reset unit includes a fixed ring disposed on the third rotating shaft near the second driven bevel gear, and a third elastic element is disposed between the fixed ring and the pressure rod.

14. The construction waste treatment equipment for building construction as described in claim 1, characterized in that, A sealing door is installed on the lower part of the side wall of the tank.

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