A construction waste crushing and sand making device with dust-proof function

Abstract

The invention discloses a construction waste crushing and sand-making device with a dust-proof function, relating to the technical field of sand-making devices, comprising a dust-proof mechanism and dust collectors installed on both sides of the top of the dust-proof mechanism, wherein a crushing and sand-making mechanism is arranged at the bottom of the dust-proof mechanism, and a sand-making motor is fixedly installed on one side of the crushing and sand-making mechanism, the dust-proof mechanism comprises a dust-proof box, connecting hinges are symmetrically installed on both sides of the top of the dust-proof box, a dust-proof rotating plate is rotatably connected to the outer side of the connecting hinge, and the dust collector is fixedly installed on one side of the top of the dust-proof rotating plate, wherein lifting sliding rods are symmetrically installed on both sides of the interior of the dust-proof box, and a lifting sliding sleeve is slidably connected to the middle part of the lifting sliding rod, by arranging the dust-proof mechanism, not only the elastic force of the lifting spring can be utilized to drive the lifting sliding sleeve to lift and slide on the outer side of the lifting sliding rod, but also the closing rotating rod can be driven to rotate, thereby realizing the automatic expansion and closing of the dust-proof rotating plate.

Description

Technical Field

[0001] The invention relates to the technical field of sand making devices, in particular to a construction waste crushing and sand making device with a dustproof function. Background Art

[0002] Construction waste enters the sand making machine from the feed hopper and is divided into two parts by the divider. One part enters the high-speed rotating impeller from the middle of the divider and is rapidly accelerated in the impeller. First, a part of the material falling around the divider is impacted and crushed, and then it impacts the material lining in the vortex branch cavity together, is rebounded by the material lining, and impacts obliquely upward to the top of the vortex cavity, and then changes its movement direction, deflects and moves downward, and the material emitted from the impeller flow channel forms a continuous material curtain. In this way, a piece of material is subjected to two or more collisions, friction, grinding and crushing effects in the vortex crushing cavity, and the crushed material is discharged from the lower discharge port. At present, when the construction waste crushing and sand making machine is in use, a large amount of dust will fly out of the feed port, which will cause certain damage to the environment and put the surrounding staff in a harsh working environment.

[0003] Publication No. CN 215353942 U discloses a construction waste crushing and sand making device with dustproof function. By setting a dustproof film, the feed port of the feed hopper can be sealed to prevent the dust in the sand making machine body from floating around through the feed port, thereby improving the working environment of the operator. By setting a rotating shaft and a connecting shaft, the dustproof film can be wound and fixed, so that the dustproof film can better seal the feed port. The device has the characteristics of safety, labor saving, simplicity and high efficiency. However, the patent still has the following problems in actual use:

[0004] Although the construction waste crushing and sand-making device with dust-proof function seals the feed port of the feed hopper with a dust-proof film, when the construction waste is crushed, the material will splash, which can easily cause the dust-proof film to break, which not only reduces the dust-proof effect of the construction waste crushing and sand-making device, but also increases the consumption of the dust-proof film, thereby increasing the sand-making cost of the construction waste crushing and sand-making device.

[0005] The present invention proposes a construction waste crushing and sand making device with dust prevention function, so as to solve the above-mentioned problems. Summary of the invention

[0006] The purpose of the present invention is to provide a construction waste crushing and sand-making device with a dust-proof function, so as to solve the problem that although the construction waste crushing and sand-making device with a dust-proof function proposed in the above background technology seals the feed port of the feed hopper through a dust-proof film, when the construction waste is crushed, the material will splash, which can easily cause the dust-proof film to break, which not only reduces the dust-proof effect of the construction waste crushing and sand-making device, but also increases the consumption of the dust-proof film, thereby increasing the sand-making cost of the construction waste crushing and sand-making device.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a construction waste crushing and sand making device with dustproof function, comprising a dustproof mechanism, and dust collectors installed on both sides of the top of the dustproof mechanism;

[0008] A crushing and sand-making mechanism is provided at the bottom of the dust-proof mechanism, and a sand-making motor is fixedly installed on one side of the crushing and sand-making mechanism;

[0009] The dustproof mechanism comprises a dustproof box, and connecting hinges are symmetrically installed on both sides of the top of the dustproof box, and the outer side of the connecting hinge is rotatably connected to a dustproof rotating plate, and the vacuum cleaner is fixedly installed on one side of the top of the dustproof rotating plate;

[0010] Among them, lifting sliding rods are symmetrically installed on both sides of the interior of the dustproof box, the middle of the lifting sliding rods is slidably connected with a lifting sliding sleeve, and the top of the lifting sliding sleeve is fixedly installed with a lifting spring;

[0011] Among them, the outer side of the lifting sliding sleeve is rotatably connected to a closed rotating rod, the end of the closed rotating rod is rotatably connected to a closed rotating support, and an arc-shaped protective plate is fixedly installed on the top of the closed rotating support.

[0012] Preferably, the bottom of the lifting sliding sleeve is fixedly connected with a connecting rope, the end of the connecting rope is fixedly connected with a dust suppression plate, a counterweight is fixedly installed on the side close to the bottom of the two dust suppression plates, the middle parts of the two dust suppression plates are rotatably connected with a connecting shaft, the outer side of the connecting shaft is rotatably connected with a first guide tube, and the first guide tube is fixedly installed at the bottom of the dustproof box.

[0013] Preferably, the crushing and sand making mechanism includes a crushing box, a plurality of first crushing blocks are fixedly installed inside the crushing box, a plurality of spiral crushing blocks are fixedly installed at the bottom of the crushing box near the first crushing blocks, a second guide tube is fixedly installed at the bottom of the crushing box, a fixed bracket is fixedly installed on the inner side of the top of the second guide tube, and a crushing motor is fixedly installed at the bottom center of the fixed bracket.

[0014] Preferably, a fixed sleeve is fixedly installed on the top of the fixed bracket, a crushing tooth is fixedly installed on the outside of the fixed sleeve, a driving gear is fixedly connected to the output end of the crushing motor, a plurality of driven gears are meshedly connected to the outside of the driving gear, a meshing toothed disk is meshedly connected to the outside of the driven gear, the meshing toothed disk is fixedly installed inside the fixed sleeve, and a rotating disk is rotatably connected to the top of the fixed sleeve.

[0015] Preferably, a crushing rotating rod is fixedly connected to the top of the driven gear, the crushing rotating rod is rotatably connected to the rotating disk, the outer side of the crushing rotating rod is rotatably connected to a rotating sleeve, a plurality of crushing sleeves are fixedly installed on the outer side of the rotating sleeve, a telescopic spring is provided inside the crushing sleeve, the end of the telescopic spring is fixedly connected to a crushing sliding rod, and the end of the crushing sliding rod is fixedly connected to a crushing ball.

[0016] Preferably, a fixed turntable is fixedly connected to the top of the driving gear, a plurality of vibration springs are fixedly installed on the top of the fixed turntable, and a conical crushing roller is fixedly connected to the top of the vibration spring.

[0017] Preferably, a sand making box is fixedly installed on one side of the second guide tube, a maintenance cover is snap-connected to the top of the sand making box, the sand making motor is fixedly installed on one side of the middle part of the sand making box, a sand making roller is fixedly connected to the output end of the sand making motor, and a filter is fixedly installed on the bottom of the sand making box near the sand making roller.

[0018] Preferably, a motor protective cover is fixedly installed on one side of the bottom of the sand making box, a cleaning motor is fixedly installed on one side of the inner side of the motor protective cover, the output end of the cleaning motor is fixedly connected to a sprocket transmission assembly, one side of the sprocket transmission assembly is symmetrically connected to a cleaning threaded rod, the middle parts of the two cleaning threaded rods are threadedly connected to a cleaning threaded sleeve, a cleaning brush is fixedly connected between the two cleaning threaded sleeves, and the cleaning brush is fit-connected to the bottom of the filter.

[0019] Preferably, a workbench is fixedly installed at the bottom of the sand making box, a collecting box is provided at the center position of the bottom of the workbench, and the crushing box is fixedly installed at the bottom of the dustproof box.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the construction waste crushing and sand making device with dust-proof function can not only utilize the elastic force of the lifting spring to drive the lifting sliding sleeve to lift and slide on the outside of the lifting sliding rod, but also drive the closing rotating rod to rotate, so as to realize the automatic expansion and closing of the dust-proof rotating plate, but also can utilize the crushing motor to realize the rotation of the fixed turntable by arranging the crushing sand making mechanism, and utilize the driven gear to drive the crushing rotating rod and the rotating sleeve to rotate and realize the revolution at the same time, and can realize the telescopic function of the crushing sliding rod and the crushing ball by the telescopic spring, and continuously knock the construction waste, so as to achieve the effect of uniform crushing, and the specific contents are as follows:

[0021] 1. By setting the dust-proof mechanism, not only can the elastic force of the lifting spring be utilized to drive the lifting sliding sleeve to lift and slide on the outer side of the lifting sliding rod, but also the closing rotating rod can be driven to rotate, so as to realize the automatic expansion and closing of the dust-proof rotating plate. The expansion angle of the dust-proof rotating plate can be controlled according to the amount of construction waste put in, so as to control the size of the opening of the dust-proof rotating plate, so as to control the speed of material feeding and prevent dust from overflowing from the opening of the dust-proof rotating plate, so as to achieve the effect of controlling dust. At the same time, the dust-suppression plate can be driven to rotate by the connecting rope to have the same expansion angle as the dust-proof rotating plate, so as to achieve the effect of dust suppression and diversion, so as to prevent construction waste from falling directly onto the top of the conical crushing roller and causing damage to the conical crushing roller and causing a large amount of dust. The automatic closing of the dust-suppression plate can be realized by the counterweight block, and the overflowing dust can be absorbed by the vacuum cleaner, so as to achieve the effect of dust prevention and prevent dust from polluting the environment.

[0022] 2. By setting up the crushing and sand making mechanism, not only can the crushing motor be used to drive the driving gear to rotate, but also the meshing action between the driving gear, the driven gear and the meshing gear disc can be used to realize the rotation of the fixed turntable, thereby driving the conical crushing roller to rotate and crush the construction waste. The driven gear is used to drive the crushing rotating rod and the rotating sleeve to rotate and realize the revolution. The telescopic spring can realize the telescopic function of the crushing sliding rod and the crushing ball, and the construction waste is continuously knocked, so as to achieve the effect of uniform crushing. The length of the crushing sliding rod increases from top to bottom, so as to fully crush the construction waste. The sand making motor drives the sand making roller to rotate, so that the preliminarily crushed construction waste can be ground and made of sand. The cleaning motor drives the sprocket drive assembly and the cleaning threaded rod to rotate, so that the cleaning threaded sleeve drives the cleaning brush to clean the bottom of the filter, thereby improving the filtering effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2It is a schematic diagram of the three-dimensional structure of the dustproof mechanism in the present invention;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the dust suppression plate and the counterweight block in the present invention;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the crushing and sand making mechanism in the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the crushing box section in the present invention;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixed sleeve and the crushing teeth in the present invention;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of the driving gear and the driven gear in the present invention;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating sleeve in the crushing rotating rod of the present invention;

[0031] Fig. 9 It is a schematic diagram of the three-dimensional structure of the cross section of the crushing sleeve in the present invention;

[0032] Fig.10 It is a schematic diagram of the three-dimensional structure of the cross section of the sand making box in the present invention;

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the cleaning brush in the present invention.

[0034] In the figure: 1. dust-proof mechanism; 101. dust-proof box; 102. connecting hinge; 103. dust-proof rotating plate; 104. dust collector; 105. lifting sliding rod; 106. lifting sliding sleeve; 107. lifting spring; 108. closing rotating rod; 109. closing rotating support; 110. arc-shaped protective plate; 111. connecting rope; 112. dust suppression plate; 113. counterweight; 114. connecting shaft; 115. first guide tube; 2. crushing and sand-making mechanism; 201. crushing box; 202. first crushing block; 203. spiral crushing block; 204. second guide tube; 205. fixed bracket; 206. crushing motor; 207. fixed sleeve; 208. crushing teeth; 2 09. Driving gear; 210. Driven gear; 211. Meshing gear disc; 212. Rotating disc; 213. Crushing rotating rod; 214. Rotating sleeve; 215. Crushing sleeve; 216. Telescopic spring; 217. Crushing sliding rod; 218. Crushing ball; 219. Fixed turntable; 220. Vibration spring; 221. Sand making box; 222. Maintenance cover; 223. Sand making motor; 224. Sand making roller; 225. Filter; 226. Motor protection cover; 227. Cleaning motor; 228. Sprocket drive assembly; 229. Cleaning threaded rod; 230. Cleaning threaded sleeve; 231. Cleaning brush; 232. Workbench; 233. Collecting box; 234. Conical crushing roller. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1-11The present invention provides a technical solution: a construction waste crushing and sand making device with dust prevention function, comprising a dust prevention mechanism 1, and dust collectors 104 installed on both sides of the top of the dust prevention mechanism 1, a crushing and sand making mechanism 2 is arranged at the bottom of the dust prevention mechanism 1, and a sand making motor 223 is fixedly installed on one side of the crushing and sand making mechanism 2, the dust prevention mechanism 1 comprises a dust prevention box 101, and connecting hinges 102 are symmetrically installed on both sides of the top of the dust prevention box 101, and a dust prevention rotating plate 103 is rotatably connected to the outer side of the connecting hinge 102, and the dust collector 104 is fixedly installed on one side of the top of the dust prevention rotating plate 103, wherein the inner sides of the dust prevention box 101 are symmetrically arranged A lifting sliding rod 105 is provided, the middle part of the lifting sliding rod 105 is slidably connected with a lifting sliding sleeve 106, the top of the lifting sliding sleeve 106 is fixedly installed with a lifting spring 107, wherein the outer side of the lifting sliding sleeve 106 is rotatably connected with a closing rotating rod 108, the end of the closing rotating rod 108 is rotatably connected with a closing rotating support 109, the top of the closing rotating support 109 is fixedly installed with an arc-shaped protective plate 110, the bottom of the lifting sliding sleeve 106 is fixedly connected with a connecting rope 111, the end of the connecting rope 111 is fixedly connected with a dust suppression plate 112, and a counterweight block 113 is fixedly installed on the side close to the bottom of the two dust suppression plates 112 The middle parts of the two dust suppression plates 112 are rotatably connected with a connecting shaft 114, and the outer side of the connecting shaft 114 is rotatably connected with a first guide tube 115, and the first guide tube 115 is fixedly installed at the bottom of the dustproof box 101. By setting the dustproof mechanism 1, not only can the elastic force of the lifting spring 107 be utilized to drive the lifting sliding sleeve 106 to lift and slide on the outer side of the lifting sliding rod 105, but also the closing rotating rod 108 is driven to rotate, so as to realize the automatic expansion and closing of the dustproof rotating plate 103. The expansion angle of the dustproof rotating plate 103 is controlled according to the amount of construction waste put in, so as to control the size of the opening of the dustproof rotating plate 103, and the dustproof rotating plate 103 can be controlled. The speed of material discharge can be controlled, and at the same time, dust can be prevented from overflowing from the opening of the dust-proof rotating plate 103, thereby achieving the effect of controlling dust. At the same time, the connecting rope 111 can be used to drive the dust suppression plate 112 to rotate, and can be opened at the same angle as the dust-proof rotating plate 103, so as to achieve dust suppression and diversion, thereby preventing construction waste from falling directly onto the top of the conical crushing roller 234, causing damage to the conical crushing roller 234 and causing a large amount of dust. The counterweight block 113 can realize the automatic closing of the dust suppression plate 112, and the vacuum cleaner 104 can absorb the overflowing dust, thereby achieving the effect of dust prevention and preventing dust from polluting the environment.

[0037] The crushing and sand making mechanism 2 includes a crushing box 201, a plurality of first crushing blocks 202 are fixedly installed inside the crushing box 201, a plurality of spiral crushing blocks 203 are fixedly installed at the bottom of the crushing box 201 near the first crushing blocks 202, a second guide tube 204 is fixedly installed at the bottom of the crushing box 201, a fixed bracket 205 is fixedly installed on the inner side of the top of the second guide tube 204, a crushing motor 206 is fixedly installed at the bottom center of the fixed bracket 205, a fixed sleeve 207 is fixedly installed on the top of the fixed bracket 205, and a crushing tooth 208 is fixedly installed on the outer side of the fixed sleeve 207 The output end of the crushing motor 206 is fixedly connected to a driving gear 209, and the outer side of the driving gear 209 is meshedly connected to a plurality of driven gears 210, and the outer side of the driven gear 210 is meshedly connected to a meshing toothed disc 211, and the meshing toothed disc 211 is fixedly installed inside the fixed sleeve 207, and the top of the fixed sleeve 207 is rotatably connected to a rotating disc 212, and the top of the driven gear 210 is fixedly connected to a crushing rotating rod 213, and the crushing rotating rod 213 is rotatably connected to the rotating disc 212, and the outer side of the crushing rotating rod 213 is rotatably connected to a rotating sleeve 214, and the outer side of the rotating sleeve 214 is fixedly connected to the rotating disc 212. A plurality of crushing sleeves 215 are fixedly installed, and a telescopic spring 216 is arranged inside the crushing sleeve 215. The end of the telescopic spring 216 is fixedly connected to a crushing sliding rod 217, and the end of the crushing sliding rod 217 is fixedly connected to a crushing ball 218. The top of the driving gear 209 is fixedly connected to a fixed turntable 219, and a plurality of vibration springs 220 are fixedly installed on the top of the fixed turntable 219. The top of the vibration spring 220 is fixedly connected to a conical crushing roller 234. By setting the crushing sand making mechanism 2, not only can the crushing motor 206 be used to drive the driving gear 209 to rotate, but also the driving gear 2 09. The meshing action between the driven gear 210 and the meshing toothed disc 211 realizes the rotation of the fixed turntable 219, thereby driving the conical crushing roller 234 to rotate and crush the construction waste. The driven gear 210 drives the crushing rotating rod 213 and the rotating sleeve 214 to rotate and realize orbital revolution. The telescopic spring 216 can realize the telescopic function of the crushing sliding rod 217 and the crushing ball 218, and continuously strike the construction waste to achieve a uniform crushing effect. The length of the crushing sliding rod 217 increases from top to bottom, so that the construction waste is fully crushed.

[0038] A sand making box 221 is fixedly installed on one side of the second guide tube 204, and a maintenance cover 222 is snap-connected to the top of the sand making box 221. A sand making motor 223 is fixedly installed on one side of the middle part of the sand making box 221, and a sand making roller 224 is fixedly connected to the output end of the sand making motor 223. A filter screen 225 is fixedly installed on the bottom of the sand making box 221 near the sand making roller 224, and a motor protective cover 226 is fixedly installed on one side of the bottom of the sand making box 221. A cleaning motor 227 is fixedly installed on one side of the inner part of the motor protective cover 226, and a sprocket drive assembly 228 is fixedly connected to the output end of the cleaning motor 227. A cleaning threaded rod 229 is symmetrically connected to one side of the sprocket drive assembly 228, and the middle parts of the two cleaning threaded rods 229 are threadedly connected. There are cleaning threaded sleeves 230, and a cleaning brush 231 is fixedly connected between the two cleaning threaded sleeves 230. The cleaning brush 231 is fitted and connected to the bottom of the filter 225. A workbench 232 is fixedly installed at the bottom of the sand making box 221, and a collecting box 233 is arranged at the bottom center of the workbench 232. The crushing box 201 is fixedly installed at the bottom of the dustproof box 101. The sand making motor 223 drives the sand making roller 224 to rotate, so that the initially crushed construction waste can be ground and made into sand. The cleaning motor 227 drives the sprocket drive assembly 228 and the cleaning threaded rod 229 to rotate, so that the cleaning threaded sleeve 230 drives the cleaning brush 231 to clean the bottom of the filter 225, thereby improving the filtering effect of the filter 225.

[0039] Working principle: Before using this construction waste crushing and sand making device with dustproof function, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Fig.11 As shown, first, put the construction waste into the top of the dust-proof rotating plate 103, and under the action of gravity, the dust-proof rotating plate 103 is rotated, and the lifting sliding sleeve 106 is driven to lift and slide on the outside of the lifting sliding rod 105. The opening angle of the dust-proof rotating plate 103 is controlled according to the amount of construction waste put in, which is convenient for controlling the size of the opening of the dust-proof rotating plate 103, so as to control the speed of material discharge and prevent dust from overflowing from the opening of the dust-proof rotating plate 103, thereby achieving the effect of controlling dust. At the same time, the connecting rope 111 can be used to drive the dust suppression plate 112 to rotate, which can The same angle as the dust-proof rotating plate 103 can be opened to achieve dust suppression and diversion at the same time, preventing construction waste from falling directly onto the top of the conical crushing roller 234, causing damage to the conical crushing roller 234 and generating a large amount of dust. The dust-proof plate 112 can be automatically closed by the counterweight block 113, and the overflowing dust can be absorbed by the vacuum cleaner 104, thereby achieving the dust-proof effect and preventing dust from polluting the environment. The elastic force of the lifting spring 107 can be used to automatically close the dust-proof rotating plate 103, thereby preventing dust from overflowing.

[0040] Secondly, when the construction waste falls into the crushing box 201, the crushing motor 206 is started to drive the driving gear 209 to rotate, and the meshing action between the driving gear 209, the driven gear 210 and the meshing toothed disc 211 is utilized to realize the rotation of the fixed turntable 219, thereby driving the conical crushing roller 234 to rotate and crush the construction waste. The driven gear 210 is utilized to drive the crushing rotating rod 213 and the rotating sleeve 214 to rotate and realize the revolution. The telescopic function of the crushing sliding rod 217 and the crushing ball 218 can be realized by the telescopic spring 216, and the construction waste is continuously struck, thereby achieving the effect of uniform crushing, and the length of the crushing sliding rod 217 increases from top to bottom, thereby fully crushing the construction waste.

[0041] Finally, the construction waste that has been initially crushed falls into the sand making box 221 through the second guide tube 204, and the sand making motor 223 is started to drive the sand making roller 224 to rotate, so that the initially crushed construction waste can be ground and sanded. The cleaning motor 227 is used to drive the sprocket drive assembly 228 and the cleaning threaded rod 229 to rotate, so that the cleaning threaded sleeve 230 drives the cleaning brush 231 to clean the bottom of the filter screen 225, thereby improving the filtering effect of the filter screen 225.

[0042] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction waste crushing and sand making device with a dust prevention function, comprising a dust prevention mechanism (1), and dust collectors (104) installed on both sides of the top of the dust prevention mechanism (1); A crushing and sand-making mechanism (2) is provided at the bottom of the dust-proof mechanism (1), and a sand-making motor (223) is fixedly mounted on one side of the crushing and sand-making mechanism (2); It is characterized in that The dustproof mechanism (1) comprises a dustproof box (101), connecting hinges (102) are symmetrically mounted on both sides of the top of the dustproof box (101), the outer side of the connecting hinge (102) is rotatably connected to a dustproof rotating plate (103), and the dust collector (104) is fixedly mounted on one side of the top of the dustproof rotating plate (103); Wherein, lifting sliding rods (105) are symmetrically installed on both sides of the interior of the dustproof box (101), a lifting sliding sleeve (106) is slidably connected to the middle of the lifting sliding rod (105), and a lifting spring (107) is fixedly installed on the top of the lifting sliding sleeve (106); The outer side of the lifting sliding sleeve (106) is rotatably connected to a closed rotating rod (108), the end of the closed rotating rod (108) is rotatably connected to a closed rotating support (109), and a curved protective plate (110) is fixedly mounted on the top of the closed rotating support (109); The bottom of the lifting sliding sleeve (106) is fixedly connected to a connecting rope (111), the end of the connecting rope (111) is fixedly connected to a dust suppression plate (112), a counterweight (113) is fixedly installed on the side close to the bottom of the two dust suppression plates (112), the middle of the two dust suppression plates (112) is rotatably connected to a connecting shaft (114), the outer side of the connecting shaft (114) is rotatably connected to a first guide tube (115), and the first guide tube (115) is fixedly installed on the bottom of the dustproof box (101).

2. The construction waste crushing and sand making device with dust-proof function according to claim 1 is characterized by: The crushing and sand making mechanism (2) comprises a crushing box (201), a plurality of first crushing blocks (202) are fixedly installed inside the crushing box (201), a plurality of spiral crushing blocks (203) are fixedly installed at the bottom of the crushing box (201) close to the first crushing blocks (202), a second guide tube (204) is fixedly installed at the bottom of the crushing box (201), a fixed bracket (205) is fixedly installed on the inner side of the top of the second guide tube (204), and a crushing motor (206) is fixedly installed at the center position of the bottom of the fixed bracket (205).

3. The construction waste crushing and sand making device with dust-proof function according to claim 2 is characterized by: A fixed sleeve (207) is fixedly mounted on the top of the fixed bracket (205), a crushing tooth (208) is fixedly mounted on the outside of the fixed sleeve (207), a driving gear (209) is fixedly connected to the output end of the crushing motor (206), a plurality of driven gears (210) are meshingly connected to the outside of the driving gear (209), a meshing toothed disc (211) is meshingly connected to the outside of the driven gear (210), the meshing toothed disc (211) is fixedly mounted inside the fixed sleeve (207), and a rotating disc (212) is rotatably connected to the top of the fixed sleeve (207).

4. The construction waste crushing and sand making device with dust-proof function according to claim 3 is characterized by: A crushing rotating rod (213) is fixedly connected to the top of the driven gear (210), and the crushing rotating rod (213) is rotatably connected to the rotating disk (212). A rotating sleeve (214) is rotatably connected to the outer side of the crushing rotating rod (213), and a plurality of crushing sleeves (215) are fixedly installed on the outer side of the rotating sleeve (214). A telescopic spring (216) is arranged inside the crushing sleeve (215), and a crushing sliding rod (217) is fixedly connected to the end of the telescopic spring (216), and a crushing ball (218) is fixedly connected to the end of the crushing sliding rod (217).

5. The construction waste crushing and sand making device with dust-proof function according to claim 4 is characterized by: A fixed rotating disk (219) is fixedly connected to the top of the driving gear (209), a plurality of vibration springs (220) are fixedly installed on the top of the fixed rotating disk (219), and a conical crushing roller (234) is fixedly connected to the top of the vibration spring (220).

6. The construction waste crushing and sand making device with dust-proof function according to claim 2 is characterized by: A sand making box (221) is fixedly mounted on one side of the second guide tube (204); a maintenance cover (222) is snap-connected to the top of the sand making box (221); the sand making motor (223) is fixedly mounted on one side of the middle of the sand making box (221); a sand making roller (224) is fixedly connected to the output end of the sand making motor (223); and a filter screen (225) is fixedly mounted on the bottom of the sand making box (221) near the sand making roller (224).

7. The construction waste crushing and sand making device with dust-proof function according to claim 6 is characterized by: A motor protection cover (226) is fixedly mounted on one side of the bottom of the sand making box (221), a cleaning motor (227) is fixedly mounted on one side of the interior of the motor protection cover (226), an output end of the cleaning motor (227) is fixedly connected to a sprocket transmission assembly (228), one side of the sprocket transmission assembly (228) is symmetrically connected to a cleaning threaded rod (229), the middle parts of two cleaning threaded rods (229) are threadedly connected to cleaning threaded sleeves (230), a cleaning brush (231) is fixedly connected between the two cleaning threaded sleeves (230), and the cleaning brush (231) is fitted and connected to the bottom of the filter screen (225).

8. The construction waste crushing and sand making device with dust-proof function according to claim 6, characterized in that: A workbench (232) is fixedly mounted on the bottom of the sand making box (221), a collecting box (233) is provided at the center of the bottom of the workbench (232), and the crushing box (201) is fixedly mounted on the bottom of the dustproof box (101).

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