Building aggregate multi-stage screening equipment for building

Abstract

The utility model relates to the field of constructional engineering, and discloses building aggregate multi-stage screening equipment for buildings, which comprises a multi-stage screening equipment main body, the right end of the upper surface of the multi-stage screening equipment main body is fixedly connected with a feeding shell, and the bottom end of the front surface of the multi-stage screening equipment main body is provided with a threaded hole. A dismounting and mounting assembly is arranged on the front surface of the multi-stage screening equipment body, a second through groove is formed in the front surface of the feeding shell, a discharging assembly is arranged on the front surface of the feeding shell, the discharging assembly comprises a reciprocating electric telescopic rod, and the reciprocating electric telescopic rod is fixedly connected to the front surface of the feeding shell; the lower surface of the reciprocating electric telescopic rod is fixedly connected with a rectangular plate. According to the feeding device, when materials are put into the feeding shell, the materials can intermittently enter the equipment through cooperation of structures in the arranged discharging assembly, the materials are prevented from being accumulated on the inner wall of the feeding opening, and the screening efficiency and accuracy of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a multi-stage screening device for building aggregates used in construction. Background Art

[0002] Construction aggregate refers to a granular material used as one of the main components of concrete, asphalt mixtures, roadbed engineering and other materials in construction projects. Due to the size differences of construction aggregates, in order to ensure the quality of concrete, the aggregates need to be screened before use. Therefore, multi-stage screening equipment has become an indispensable tool. When some multi-stage screening equipment is in use, workers will put a large amount of material into the feed port, which may cause the material to accumulate at the feed port, resulting in uneven screening and increasing the load on the equipment.

[0003] After searching, Chinese patent announcement number: CN220295143U discloses a multi-stage screening device for building aggregates, including a screening component and a loading component detachably mounted on the top of the screening component for loading materials, the loading component including a dust cover, the top of the dust cover is constructed with a frame, and a plurality of through holes are equidistantly opened on both sides of the frame away from the dust cover, a support shaft is installed in the two opposite through holes for common rotation, and a servo motor fixedly mounted on one side of the frame is connected to one end of the support shaft extending out of the through hole, a conveyor belt is installed on the outer edge surface of the plurality of support shafts, and a dust cover is welded and fixedly mounted on the top of the frame. The multi-stage screening device for building aggregates adopts a multi-stage screening method to complete the screening of materials, can automatically load materials during screening, and can also block smoke and dust, which can prevent dust from being raised, greatly improving the air quality in the working environment, and has strong practicality.

[0004] In the above technology, although there are certain improvements through the structure set up, it still has certain defects. When it is in use, the material is discharged into the interior of the equipment through a conveyor belt. Since the conveyor belt feeds continuously, if the worker feeds the material too fast, a large amount of material may accumulate at the feed port, and the practicality is too low. Therefore, a multi-stage screening equipment for building aggregates is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a multi-stage screening equipment for building aggregates, aiming to improve the problem in the prior art that a large amount of material may accumulate at the feed port of some multi-stage screening equipment when in use, resulting in increased equipment load and low practicality.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-stage screening equipment for building aggregates, comprising a multi-stage screening equipment body, a feed shell is fixedly connected to the right end of the upper surface of the multi-stage screening equipment body, a threaded hole is provided at the bottom end of the front surface of the multi-stage screening equipment body, a disassembly and assembly component is provided on the front surface of the multi-stage screening equipment body, a through groove 2 is provided on the front surface of the feed shell, a unloading component is provided on the front surface of the feed shell, the unloading component comprises a reciprocating electric telescopic rod, the reciprocating electric telescopic rod is fixedly connected to the front surface of the feed shell, a rectangular plate is fixedly connected to the lower surface of the reciprocating electric telescopic rod, the rectangular plate is slidably connected to the lower side of the front surface of the feed shell adjacent to the reciprocating electric telescopic rod, and a through groove 1 is provided on the front surface of the rectangular plate.

[0007] As a further description of the above technical solution:

[0008] The disassembly and assembly component includes a filter plate, which slides through the front surface of the multi-stage screening equipment body, a rectangular groove is opened on the right surface of the filter plate end, the front surface of the filter plate contacts with a fixed shell, the front surface of the fixed shell is fixedly connected to a movable frame, the front surface of the bottom end of the movable frame is threadedly connected with a bolt, and the outer wall of the rear end of the bolt is threadedly connected to the inner wall of the threaded hole.

[0009] As a further description of the above technical solution:

[0010] The unloading assembly also includes a stopper, which penetrates and slides through the left surface of the feed shell, and a sliding rod is fixedly connected to the front surface of the stopper, and the sliding rod is slidably connected to the inner wall of the second through groove, and the outer wall of the front end of the sliding rod is slidably connected to the inner wall of the first through groove.

[0011] As a further description of the above technical solution:

[0012] The unloading assembly also includes a rotating rod, which penetrates and is rotatably connected to the bottom end of the front surface of the feed shell, and the rear surface of the rotating rod is fixedly connected to an opening and closing door, which slides on the bottom end of the inner wall of the feed shell.

[0013] As a further description of the above technical solution:

[0014] The front surface of the rotating rod is fixedly connected to a connecting slide rail, the inner wall of the connecting slide rail is slidably connected to a round rod, the front surface of the round rod is rotatably connected to an L-shaped connecting plate, and the rear surface of the top end of the L-shaped connecting plate is fixedly connected to the bottom end of the front surface of the through groove.

[0015] As a further description of the above technical solution:

[0016] A pull rod is slidably connected through the right surface of the fixed shell, a clamping block is fixedly connected to the left surface of the pull rod, the clamping block is slidably connected to the inner wall of the right end of the fixed shell, and the clamping block contacts the inner wall of the rectangular groove.

[0017] As a further description of the above technical solution:

[0018] A spring is sleeved on the outer wall of the pull rod, one end of the spring is fixedly connected to the right surface of the clamping block, and the other end of the spring is fixedly connected to the inner wall of the right end of the fixed shell.

[0019] As a further description of the above technical solution:

[0020] The block is in a trapezoidal shape, and the left surface is arranged as an inclined surface.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, when the material is placed into the feed shell, the material can intermittently enter the interior of the equipment through the cooperation between the structures in the set feeding assembly, thereby avoiding the accumulation of the material on the inner wall of the feed port, thereby improving the screening efficiency and accuracy of the equipment.

[0023] 2. In the utility model, multiple groups of filter plates on the inner wall of the equipment can be removed together through the disassembly and assembly components, which does not require workers to disassemble them one by one, thereby improving work efficiency. At the same time, the mobile rack can increase the space for disassembling the filter plates, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 It is a schematic diagram of the split cross section of the three-dimensional structure of the feed shell and the stopper in the utility model;

[0026] Figure 3 It is a schematic diagram of the split cross section of the three-dimensional structure of the mobile frame and the filter plate in the utility model;

[0027] Figure 4 For the utility model Figure 3 An enlarged schematic diagram of the three-dimensional structure of the A region.

[0028] Legend:

[0029] 1. Multi-stage screening equipment body; 2. Feed shell; 3. Unloading assembly; 31. Reciprocating electric telescopic rod; 32. Rectangular plate; 33. L-shaped connecting plate; 34. Through slot one; 35. Slide rod; 36. Block; 37. Round rod; 38. Connecting slide rail; 39. Rotating rod; 310. Opening and closing door; 4. Disassembly and assembly assembly; 41. Moving frame; 42. Fixed shell; 43. Bolt; 44. Filter plate; 45. Rectangular slot; 46. Block; 47. Pull rod; 48. Spring; 5. Through slot two; 6. Threaded hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a multi-stage screening device for building aggregates, including a multi-stage screening device body 1, a feed shell 2 is fixedly connected to the right end of the upper surface of the multi-stage screening device body 1, a threaded hole 6 is provided at the bottom end of the front surface of the multi-stage screening device body 1, a disassembly assembly 4 is provided on the front surface of the multi-stage screening device body 1, a through groove 2 5 is provided on the front surface of the feed shell 2, a feed discharge assembly 3 is provided on the front surface of the feed shell 2, and the feed discharge assembly 3 includes a reciprocating electric telescopic rod 31, and the reciprocating electric telescopic rod 31 is a prior art and can be implemented by technicians in this field. Since it is a prior art, it is used in this case. Without further description, the reciprocating electric telescopic rod 31 is fixedly connected to the front surface of the feed shell 2, and a rectangular plate 32 is fixedly connected to the lower surface of the reciprocating electric telescopic rod 31. The reciprocating electric telescopic rod 31 can drive the rectangular plate 32 to reciprocate up and down, so that the material can intermittently enter the interior of the multi-stage screening equipment body 1 to avoid material accumulation. The rectangular plate 32 is slidably connected to the lower side of the reciprocating electric telescopic rod 31 near the front surface of the feed shell 2, and a through groove 34 is provided on the front surface of the rectangular plate 32. The through groove 34 has a certain inclination to ensure that the slide bar 35 can move along the inclination when the rectangular plate 32 moves.

[0032] Reference Figure 1 , Figure 3 - Figure 4The disassembly and assembly component 4 includes a filter plate 44. There are multiple groups of filter plates 44, which can classify materials of different sizes for a batch of products, thereby improving practicality. The filter plate 44 penetrates and slides on the front surface of the multi-stage screening equipment body 1. A rectangular groove 45 is provided on the right surface of the filter plate 44 end. The front surface of the filter plate 44 contacts with a fixed shell 42. The front surface of the fixed shell 42 is fixedly connected with a movable frame 41. A roller is provided at the bottom of the movable frame 41, which can drive multiple groups of filter plates 44 to move to an open position for disassembly, thereby increasing the comfort of disassembling the filter plate 44. The front surface of the bottom end of the movable frame 41 penetrates and is threadedly connected with a bolt 43. The bolt 43 is adapted to the threaded hole 6 to ensure the stability of the fixing of the movable frame 41. The outer wall of the rear end of the bolt 43 is threadedly connected to the inner wall of the threaded hole 6.

[0033] Reference Figure 1 - Figure 3 The unloading assembly 3 also includes a stopper 36. The right side of the upper surface of the stopper 36 is set as an inclined surface to ensure that the material can smoothly fall between the opening and closing doors 310. The stopper 36 penetrates and slides through the left surface of the feed shell 2. The front surface of the stopper 36 is fixedly connected with a slide rod 35. The slide rod 35 is slidably connected to the inner wall of the through groove 2 5, and the outer wall of the front end of the slide rod 35 is slidably connected to the inner wall of the through groove 1 34.

[0034] Reference Figure 1 - Figure 3 The unloading assembly 3 also includes a rotating rod 39, which is rotatably connected to the bottom end of the front surface of the feed shell 2. The rear surface of the rotating rod 39 is fixedly connected to an opening and closing door 310. The opening and closing doors 310 are arranged in multiple groups and are symmetrically arranged with the center line of the feed shell 2. The contact points of the multiple groups of opening and closing doors 310 are made of rubber material to ensure the sealing when closed. The opening and closing doors 310 slide on the bottom end of the inner wall of the feed shell 2. The front surface of the rotating rod 39 is fixedly connected to a connecting slide rail 38. The inner wall of the connecting slide rail 38 is slidably connected to a round rod 37. The front surface of the round rod 37 The surface is rotatably connected with an L-shaped connecting plate 33, and the rear surface of the top of the L-shaped connecting plate 33 is fixedly connected to the bottom end of the front surface of the through groove 1 34. When the reciprocating electric telescopic rod 31 drives the rectangular plate 32 to move downward, the slide bar 35 will drive the stopper 36 to close along the slope of the through groove 1 34, and at the same time, the rectangular plate 32 will open the opening and closing door 310 through the cooperation of the L-shaped connecting plate 33 and the connecting slide rail 38. When the rectangular plate 32 moves upward, the above structure moves in the opposite direction, so that intermittent movement can be achieved to avoid material accumulation.

[0035] Reference Figure 3 - Figure 4A pull rod 47 is slidably connected to the right surface of the fixed shell 42, and a block 46 is fixedly connected to the left surface of the pull rod 47. The block 46 is trapezoidal in shape, and the left surface is set as an inclined surface. Setting it as an inclined surface can improve the efficiency of installing the filter plate 44. The block 46 is slidably connected to the inner wall of the right end of the fixed shell 42, and the block 46 contacts the inner wall of the rectangular groove 45. A spring 48 is sleeved on the outer wall of the pull rod 47. The spring 48 always pushes the block 46 to move to the left through its own elasticity to ensure the stability of its limit. One end of the spring 48 is fixedly connected to the right surface of the block 46, and the other end of the spring 48 is fixedly connected to the inner wall of the right end of the fixed shell 42.

[0036] Working principle: When the worker puts the material into the feed shell 2, the reciprocating electric telescopic rod 31 can be started, and the reciprocating electric telescopic rod 31 will drive the rectangular plate 32 to reciprocate up and down. At this time, the slide bar 35 will slide back and forth on the inner wall of the through groove 1 34, and slide back and forth on the inner wall of the through groove 2 5 along the slope of the through groove 1 34. The slide bar 35 will drive the block 36 to move back and forth, and multiple groups of blocks 36 will close and open. At the same time, the rectangular plate 32 will drive the L-shaped connecting plate 33 to move, and the L-shaped connecting plate 33 will drive the round rod 37 to connect the slide rail. The inner wall of 38 slides, and the connecting slide rail 38 will rotate about the center of the rotating rod 39. At the same time, the connecting slide rail 38 will also drive the rotating rod 39 to rotate, and the rotating rod 39 will drive the reciprocating electric telescopic rod 31 to rotate. Under the action of the reciprocating electric telescopic rod 31 driving the rectangular plate 32 to reciprocate, the opening and closing door 310 is repeatedly closed and opened. It should be noted that when the multiple groups of blocks 36 are opened, the multiple groups of opening and closing doors 310 are in a closed state, and vice versa, the multiple groups of opening and closing doors 310 are in an open state, so that intermittent material unloading can be achieved, material accumulation can be avoided, and the screening efficiency is improved.

[0037] When it is necessary to remove the filter plate 44, it is only necessary to use a tool to rotate the bolt 43 until the bolt 43 is disengaged from the inner wall of the threaded hole 6. At this time, the movable frame 41 can be pulled, and the movable frame 41 will move through the rollers arranged at the bottom thereof. At the same time, the movable frame 41 will drive the multiple groups of fixed shells 42 to move, and the multiple groups of fixed shells 42 will bring the multiple groups of filter plates 44 out of the inner wall of the multi-stage screening device body 1 together. At this time, the filter plate 44 can be moved to an open position for disassembly, which improves convenience. Subsequently, the pull rod 47 is pulled to disengage the block 46 from the inner wall of the rectangular groove 45, and then Remove the filter plate 44. When installing, insert the filter plate 44 into the inner wall of the fixed shell 42. During the insertion process, the filter plate 44 will be pushed to move along the inclined surface of the block 46, and the block 46 will squeeze the spring 48 until the block 46 completely overlaps with the rectangular groove 45. At this time, the spring 48 will push the block 46 to move in the opposite direction and insert it into the inner wall of the rectangular groove 45 through its own elasticity. In this way, the filter plate 44 can be fixed. Subsequently, the movable frame 41 is pushed to insert the filter plate 44 into the inner wall of the multi-stage screening equipment body 1, and then the movable frame 41 is fixed by the bolts 43.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 multi-stage screening device for building aggregates, comprising a multi-stage screening device body (1), characterized in that: A feed shell (2) is fixedly connected to the right end of the upper surface of the multi-stage screening device body (1); a threaded hole (6) is provided at the bottom end of the front surface of the multi-stage screening device body (1); a disassembly assembly (4) is provided on the front surface of the multi-stage screening device body (1); a second through slot (5) is provided on the front surface of the feed shell (2); a material discharge assembly (3) is provided on the front surface of the feed shell (2); the material discharge assembly (3) comprises a reciprocating electric telescopic rod (31); the reciprocating electric telescopic rod (31) is fixedly connected to the front surface of the feed shell (2); a rectangular plate (32) is fixedly connected to the lower surface of the reciprocating electric telescopic rod (31); the rectangular plate (32) is slidably connected to the lower side of the front surface of the feed shell (2) adjacent to the reciprocating electric telescopic rod (31); and a first through slot (34) is provided on the front surface of the rectangular plate (32).

2. A multi-stage screening device for building aggregates according to claim 1, characterized in that: The disassembly assembly (4) comprises a filter plate (44), the filter plate (44) penetrates and slides on the front surface of the multi-stage screening device body (1), a rectangular groove (45) is provided on the right surface of the end of the filter plate (44), the front surface of the filter plate (44) contacts a fixed shell (42), the front surface of the fixed shell (42) is fixedly connected to a movable frame (41), the front surface of the bottom end of the movable frame (41) penetrates and is threadedly connected to a bolt (43), and the rear end outer wall of the bolt (43) is threadedly connected to the inner wall of the threaded hole (6).

3. The multi-stage screening equipment for building aggregates according to claim 1 is characterized in that: The material discharge assembly (3) further comprises a stopper (36), the stopper (36) passing through and slidably connected to the left surface of the feed shell (2), a sliding rod (35) being fixedly connected to the front surface of the stopper (36), the sliding rod (35) being slidably connected to the inner wall of the second through groove (5), and the outer wall of the front end of the sliding rod (35) being slidably connected to the inner wall of the first through groove (34).

4. The multi-stage screening equipment for building aggregates according to claim 1 is characterized in that: The material discharge assembly (3) further comprises a rotating rod (39), the rotating rod (39) being rotatably connected to the bottom end of the front surface of the material feed shell (2), the rear surface of the rotating rod (39) being fixedly connected to an opening and closing door (310), the opening and closing door (310) sliding on the bottom end of the inner wall of the material feed shell (2).

5. The multi-stage screening equipment for building aggregates according to claim 4 is characterized in that: The front surface of the rotating rod (39) is fixedly connected to a connecting slide rail (38), the inner wall of the connecting slide rail (38) is slidably connected to a round rod (37), the front surface of the round rod (37) is rotatably connected to an L-shaped connecting plate (33), and the rear surface of the top end of the L-shaped connecting plate (33) is fixedly connected to the bottom end of the front surface of the through groove 1 (34).

6. The multi-stage screening equipment for building aggregates according to claim 2, characterized in that: A pull rod (47) is slidably connected to the right surface of the fixed shell (42), and a clamping block (46) is fixedly connected to the left surface of the pull rod (47). The clamping block (46) is slidably connected to the inner wall of the right end of the fixed shell (42), and the clamping block (46) contacts the inner wall of the rectangular groove (45).

7. The multi-stage screening equipment for building aggregates according to claim 6, characterized in that: A spring (48) is sleeved on the outer wall of the pull rod (47), one end of the spring (48) is fixedly connected to the right surface of the clamping block (46), and the other end of the spring (48) is fixedly connected to the inner wall of the right end of the fixed shell (42).

8. The multi-stage screening equipment for building aggregates according to claim 6, characterized in that: The clamping block (46) is in a trapezoidal shape, and the left surface is arranged as an inclined surface.

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