Garbage crusher for construction site

Abstract

The garbage crusher for the construction site comprises a support, a crushing mechanism, a filter screen and a shell connected to the support, a feeding port is formed in the upper side wall of the shell, and a discharging port is formed in the bottom of the shell; the crushing mechanism comprises a rotating shaft, a knife rest, a knife disc, a plurality of knife shafts, a plurality of fine cutting knives and a plurality of rough cutting knives, the rotating shaft is rotationally arranged in the shell, the knife rest and the knife disc are connected to the rotating shaft in parallel at intervals, the knife shafts are arranged around the rotating shaft at intervals, the two ends of each knife shaft are fixedly connected with the knife rest and the knife disc correspondingly, and the fine cutting knives are connected to the knife shafts at intervals; a plurality of mounting positions are arranged on the cutter head at intervals, and the rough cutters are fixedly connected to the mounting positions; and the filter screen is fixedly connected in the shell and is arranged close to the discharge hole. Waste plastic pipes are roughly cut into small sections through the rough cutter, then the small sections are further crushed through the fine cutter, meanwhile, the waste plastic pipes can be prevented from flying out in the crushing process through the feeding port formed in the side face, and safety is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of construction waste treatment, in particular to a garbage crusher used in construction sites. Background Art

[0002] Plastic pipes are generally made of synthetic resin, that is, polyester as raw material, with the addition of stabilizers, lubricants, plasticizers, etc., and are extruded in a pipe making machine by the "plastic" method. Due to its light weight, corrosion resistance, beautiful appearance, no bad smell, easy processing, and convenient construction, its use in the field of construction engineering has become more and more widespread. However, plastic pipes are of fixed length when transported to construction sites, and workers are required to lengthen or cut the plastic pipes at the construction site to meet time requirements. When cutting the pipes, a large amount of waste plastic pipes will be generated. At present, the equipment used to crush garbage mainly includes jaw crushers and impact crushers. Jaw crushers and impact crushers are mainly used to crush high-strength garbage such as stones. For example, the application number is CN202322738 253.6 discloses a crushing mechanism and a jaw crusher, comprising a supporting component, including a base, a supporting frame arranged on the base, a motor arranged on the supporting frame, and a fixed plate arranged in the supporting frame. The utility model drives the limiting slide bar in the sliding assembly to move inside the vertical groove through the limiting slide plate in the limiting assembly, so that the limiting slide bar slides inside the arc groove and the arc slide groove, and changes the angle of the extrusion arc plate through the arc slide groove. The arc pull rod and the sliding teeth in the extrusion assembly cooperate with each other, so that the extrusion spring squeezes the two groups of sliding teeth, and the two groups of sliding teeth mesh with the limiting teeth, so that the angle of the extrusion arc plate is fixed, and the extrusion arc plate is driven to extrude the material by pulling the limiting slide plate downward, so that the material moves downward during the crushing process, thereby improving the crushing efficiency.

[0003] The above equipment has poor crushing effect for relatively flexible plastic pipes, so it needs to be improved. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a garbage crusher for construction sites, which can effectively crush the discarded plastic pipes at the construction site.

[0005] According to the first embodiment of the utility model, the construction site garbage crusher comprises a bracket, a crushing mechanism, a filter screen and a shell connected to the bracket, wherein a feed inlet is provided on the upper side wall of the shell, and a discharge port is provided at the bottom of the shell;

[0006] The crushing mechanism comprises a rotating shaft, a knife holder, a knife disc, a plurality of knife shafts, a plurality of fine cutting knives and a plurality of rough cutting knives, the rotating shaft is rotatably arranged in the housing, the knife holder and the knife disc are connected to the rotating shaft in parallel and at intervals, and the knife disc is arranged close to the feed inlet, a plurality of knife shafts are arranged around the rotating shaft at intervals, and the two ends of the knife shafts are respectively fixedly connected to the knife holder and the knife disc, a plurality of the fine cutting knives are connected to the knife shaft at intervals, a plurality of installation positions are arranged at intervals on the knife disc, and a plurality of the rough cutting knives are respectively fixedly connected to the installation positions one by one;

[0007] The filter screen is fixedly connected in the shell and arranged close to the discharge port.

[0008] The garbage crusher for construction sites according to the embodiment of the utility model has at least the following beneficial effects: the discarded plastic pipes are roughly cut into small sections by a rough cutting knife, and the small sections are further crushed by a fine cutting knife, and at the same time, the feed port arranged on the side can prevent the discarded plastic pipes from flying out during the crushing process, thereby ensuring safety.

[0009] According to some embodiments of the utility model, the garbage crusher also includes a motor fixedly connected to the bracket, both ends of the rotating shaft extend out of the shell, both ends of the rotating shaft are connected to the bracket through a first rotating seat, one end of the rotating shaft is connected to a driven pulley, the output shaft of the motor is connected to a driving pulley, and the driving pulley is connected to the driven pulley through a transmission belt.

[0010] According to some embodiments of the present invention, the mounting positions are evenly arranged on the cutter disc around the central axis of the rotating shaft.

[0011] According to some embodiments of the utility model, the plurality of knife shafts are evenly spaced around the central axis of the rotating shaft, and the central axes of the plurality of knife shafts are parallel to the central axis of the rotating shaft.

[0012] According to some embodiments of the present utility model, the fine cutting knives on the same knife shaft are arranged in parallel and evenly spaced.

[0013] According to some embodiments of the present invention, the blade of the rough cutting knife and the blade of the fine cutting knife are both facing the same side.

[0014] According to some embodiments of the present invention, the rough cutting knife is arranged on a side of the knife disc away from the knife holder.

[0015] According to some embodiments of the present utility model, the shell includes an upper shell and a lower shell connected to the bottom of the upper shell, the feed port is connected to the upper shell, and the discharge port and the filter are both connected to the lower shell.

[0016] According to some embodiments of the present invention, the upper shell and the lower shell are detachably connected to the bracket.

[0017] According to some embodiments of the utility model, a second rotating seat is fixedly connected to the side wall of the lower shell, a rotating rod is rotatably connected in the second rotating seat, a threaded hole is opened on the rotating rod, a screw is threadedly connected in the threaded hole, a handwheel is connected to the end of the screw away from the rotating rod, and a clamping seat is provided on the side wall of the upper shell corresponding to the second rotating seat, a clamping slot with an opening is provided on the clamping seat, the open end of the clamping slot is warped upward, and the screw is detachably clamped in the clamping slot.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 The utility model is a schematic structural diagram of a garbage crusher for use on construction sites according to an embodiment of the utility model.

[0021] Figure 2 It is a front view structural schematic diagram of a garbage crusher for use on a construction site according to an embodiment of the utility model.

[0022] Figure 3 It is a rear structural schematic diagram of a garbage crusher for use on a construction site according to an embodiment of the utility model.

[0023] Figure 4 It is a partial structural schematic diagram of a garbage crusher for use on construction sites according to an embodiment of the utility model.

[0024] Figure 5 The present invention is a schematic structural diagram of a crushing mechanism of a garbage crusher for use on construction sites according to an embodiment of the present invention.

[0025] Figure 6 It is a partial structural schematic diagram of the crushing mechanism of the garbage crusher for construction sites according to an embodiment of the utility model.

[0026] Figure 7 The utility model is a schematic structural diagram of a tool holder of a garbage crusher for use on a construction site according to an embodiment of the utility model.

[0027] Figure 8 The utility model is a schematic structural diagram of a cutter disc of a garbage crusher for use on a construction site according to an embodiment of the utility model.

[0028] Fig. 9 for Figure 1Schematic diagram of the enlarged structure of part A in the middle.

[0029] 100, bracket; 210, rotating shaft; 220, knife holder; 230, knife disc; 231, mounting position; 240, knife shaft; 250, fine cutting knife; 260, rough cutting knife; 261, mounting part; 262, knife head part; 300, filter screen; 410, upper shell; 411, feed port; 420, lower shell; 421, discharge port; 430, second rotating seat; 440, rotating rod; 450, screw rod; 460, hand wheel; 470, card seat; 471, card slot; 510, motor; 520, first rotating seat; 530, driving pulley; 540, driven pulley; 550, transmission belt. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 as well as Figure 8As shown, according to the embodiment of the utility model, the garbage crusher for construction sites includes a bracket 100, a crushing mechanism, a filter screen 300 and a shell connected to the bracket 100, a feed inlet 411 is opened on the upper side wall of the shell, and a discharge port 421 is opened at the bottom of the shell; the crushing mechanism includes a rotating shaft 210, a knife holder 220, a knife disc 230, a plurality of knife shafts 240, a plurality of fine cutting knives 250 and a plurality of rough cutting knives 260, the rotating shaft 210 is rotatably arranged in the shell, the knife holder 220 and the knife disc 230 are parallel to each other, and the crushing mechanism includes a rotating shaft 210, a knife holder 220, a knife disc 230, a plurality of knife shafts 240, a plurality of fine cutting knives 250 and a plurality of rough cutting knives 260, the rotating shaft 210 is rotatably arranged in the shell, and the knife holder 220 and the knife disc 230 are parallel to each other. It is connected to the rotating shaft 210 at intervals, and the knife disc 230 is arranged near the feed port 411, multiple knife shafts 240 are arranged around the rotating shaft 210 at intervals, and the two ends of the knife shaft 240 are respectively fixedly connected to the knife holder 220 and the knife disc 230, multiple fine cutting knives 250 are connected to the knife shaft 240 at intervals, and multiple mounting positions 231 are spaced apart on the knife disc 230, and multiple rough cutting knives 260 are fixedly connected to the mounting positions 231 one by one; the filter screen 300 is fixedly connected in the shell and arranged near the discharge port 421.

[0035] During actual use, the cutter disc 230 and the cutter holder 220 rotate with the rotating shaft 210. At this time, the rough cutting knife 260 on the cutter disc 230 is used to cut the waste plastic tubes entering from the feed port 411 when passing through the installation position 231. The waste plastic tubes are roughly cut into small sections of waste plastic tubes by the rough cutting knife 260 or the small sections of waste plastic tubes are directly put into the shell, and then the small sections are further crushed by the fine cutting knife 250. At the same time, the feed port 411 arranged on the side can prevent the waste plastic tubes from flying out during the crushing process, thereby ensuring safety. At the same time, the filter screen 300 is used to ensure the sufficiency of the crushing and the degree of the crushing. After the crushing is completed, the crushed waste plastic tubes can be collected through bags for easy transportation and secondary utilization.

[0036] In some specific embodiments of the utility model, it may also have the following additional technical features: the garbage crusher also includes a motor 510 fixedly connected to the bracket 100, both ends of the rotating shaft 210 extend out of the shell, both ends of the rotating shaft 210 are connected to the bracket 100 through a first rotating seat 520, one end of the rotating shaft 210 is connected to a driven pulley 540, and the output shaft of the motor 510 is connected to a driving pulley 530, and the driving pulley 530 is connected to the driven pulley 540 through a transmission belt 550.

[0037] In some specific embodiments of the present invention, the following additional technical features may be provided: the mounting position 231 is evenly arranged on the cutter disc 230 around the central axis of the rotating shaft 210. Preferably, the plurality of cutter shafts 240 are evenly spaced around the central axis of the rotating shaft 210, and the central axes of the plurality of cutter shafts 240 are arranged parallel to the central axis of the rotating shaft 210. More preferably, the fine cutters 250 on the same cutter shaft 240 are evenly spaced in parallel. Specifically, the blade of the rough cutter 260 and the blade of the fine cutter 250 are facing the same side.

[0038] In some specific embodiments of the utility model, it may also have the following additional technical features: the rough cutting knife 260 is arranged on the side of the knife disc 230 away from the knife holder 220. Specifically, the rough cutting knife 260 includes a mounting portion 261 and a cutter head portion 262 connected to the mounting portion 261, wherein the mounting portion 261 is used to fix the cutter head portion 262 to the knife disc 230, and the cutter head portion 262 has a blade for cutting and crushing. Through this design, it is possible to avoid the rough cutting knife 260 being arranged between the knife disc 230 and the knife holder 220, which causes the rough cutting knife 260 to collide with the materials between the knife disc 230 and the knife holder 220, so that the fixing portion does not need to use the same material as the cutter head, thereby reducing costs.

[0039] In some specific embodiments of the utility model, it may also have the following additional technical features: the shell includes an upper shell 410 and a lower shell 420 connected to the bottom of the upper shell 410, the feed port 411 is connected to the upper shell 410, and the discharge port 421 and the filter 300 are both connected to the lower shell 420.

[0040] In some specific embodiments of the present invention, the following additional technical features may be provided: the upper shell 410 and the lower shell 420 are detachably connected to the bracket 100 .

[0041] refer to Fig. 9 As shown, in some specific embodiments of the utility model, it may also have the following additional technical features: a second rotating seat 430 is fixedly connected to the side wall of the lower shell 420, a rotating rod 440 is rotatably connected inside the second rotating seat 430, a threaded hole is opened on the rotating rod 440, a screw 450 is threadedly connected in the threaded hole, a hand wheel 460 is connected to one end of the screw 450 away from the rotating rod 440, a clamping seat 470 is arranged on the side wall of the upper shell 410 corresponding to the second rotating seat 430, a clamping slot 471 with an opening is arranged on the clamping seat 470, the open end of the clamping slot 471 is warped upward, and the screw 450 is detachably clamped in the clamping slot 471. Specifically, the side wall of the lower shell 420 is hinged to the side wall of the upper shell 410, and the hinge between the lower shell 420 and the upper shell 410 is arranged opposite to the second rotating seat 430.

[0042] When closing is required, the screw 450 is clamped in the slot 471 after passing through the open end and the hand wheel 460 is turned to deepen the threaded connection between the screw 450 and the threaded hole. At this time, the upward warping of the open end of the slot 471 prevents the screw 450 from escaping from the socket 470, thereby completing the fixed connection between the upper shell 410 and the lower shell 420; and when separation is required, the threaded connection between the screw 450 and the threaded hole is reduced by turning the hand wheel 460, so that the screw 450 moves outward as a whole. At this time, the lowest point of the hand wheel 460 is higher than the highest point of the upward warping of the open end, so that the screw 450 can rotate around the rotating rod 440, and the upper shell 410 and the lower shell 420 can be separated to facilitate the user to inspect and repair the equipment.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A garbage crusher for construction sites, characterized in that: It comprises a support (100), a crushing mechanism, a filter screen (300), and a shell connected to the support (100); a feed port (411) is provided on the upper side wall of the shell, and a discharge port (421) is provided at the bottom of the shell; The crushing mechanism comprises a rotating shaft (210), a knife holder (220), a knife disc (230), a plurality of knife shafts (240), a plurality of fine cutting knives (250) and a plurality of rough cutting knives (260), wherein the rotating shaft (210) is rotatably arranged in the housing, the knife holder (220) and the knife disc (230) are connected to the rotating shaft (210) in parallel and at intervals, and the knife disc (230) is arranged close to the feed port (411), and the plurality of knife shafts (240) are arranged in parallel and at intervals. The knife shaft (240) is arranged around the rotating shaft (210) at intervals, and the two ends of the knife shaft (240) are respectively fixedly connected to the knife holder (220) and the knife disc (230), a plurality of the fine cutting knives (250) are connected to the knife shaft (240) at intervals, a plurality of installation positions (231) are arranged at intervals on the knife disc (230), and a plurality of the rough cutting knives (260) are respectively fixedly connected to the installation positions (231) in a one-to-one correspondence; The filter screen (300) is fixedly connected inside the housing and is disposed close to the discharge port (421).

2. The construction site garbage crusher according to claim 1, characterized in that: The garbage crusher also includes a motor (510) fixedly connected to the bracket (100), the two ends of the rotating shaft (210) extend out of the shell, the two ends of the rotating shaft (210) are connected to the bracket (100) through a first rotating seat (520), one end of the rotating shaft (210) is connected to a driven pulley (540), the output shaft of the motor (510) is connected to a driving pulley (530), and the driving pulley (530) is connected to the driven pulley (540) through a transmission belt (550).

3. The construction site garbage crusher according to claim 1, characterized in that: The mounting positions (231) are evenly arranged on the cutter disc (230) around the central axis of the rotating shaft (210).

4. The construction site garbage crusher according to claim 3, characterized in that: The plurality of knife shafts (240) are evenly spaced around the central axis of the rotating shaft (210), and the central axes of the plurality of knife shafts (240) are arranged parallel to the central axis of the rotating shaft (210).

5. The garbage crusher for construction sites according to claim 4, characterized in that: The fine cutting knives (250) on the same knife shaft (240) are arranged in parallel and evenly spaced.

6. The garbage crusher for construction sites according to claim 5, characterized in that: The blade of the rough cutting knife (260) and the blade of the fine cutting knife (250) are both facing the same side.

7. The garbage crusher for construction sites according to claim 1, characterized in that: The rough cutting knife (260) is arranged on a side of the knife disc (230) away from the knife holder (220).

8. The garbage crusher for construction sites according to claim 1, characterized in that: The shell comprises an upper shell (410) and a lower shell (420) connected to the bottom of the upper shell (410), the feed port (411) is connected to the upper shell (410), and the discharge port (421) and the filter (300) are both connected to the lower shell (420).

9. The garbage crusher for construction sites according to claim 8, characterized in that: The upper shell (410) and the lower shell (420) are detachably connected to the bracket (100).

10. The garbage crusher for construction sites according to claim 9, characterized in that: A second rotating seat (430) is fixedly connected to the side wall of the lower shell (420), and a rotating rod (440) is rotatably connected inside the second rotating seat (430). A threaded hole is opened on the rotating rod (440), and a screw rod (450) is threadedly connected in the threaded hole. A hand wheel (460) is connected to the end of the screw rod (450) away from the rotating rod (440). A clamping seat (470) is arranged on the side wall of the upper shell (410) corresponding to the second rotating seat (430), and a clamping slot (471) with an opening is arranged on the clamping seat (470), and the open end of the clamping slot (471) is warped upward, and the screw rod (450) is detachably clamped in the clamping slot (471).

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