Fine sand screening device for constructional engineering

Abstract

The utility model discloses a fine sand screening device for constructional engineering, and relates to the technical field of screening devices. The device comprises a conveying pipe, the top of the conveying pipe is fixedly connected with a feeding hopper, a conveying assembly is arranged in the conveying pipe, the bottom of the conveying pipe is provided with a mounting groove, the inner wall of the mounting groove is fixedly connected with a screen, the bottom of the conveying pipe is fixedly connected with a discharging frame, and the bottom of the conveying pipe is fixedly connected with a secondary screening assembly corresponding to the screen. The bottom of the second-stage screening assembly is fixedly connected with a material guiding assembly, and a collecting assembly is arranged at the bottom of the conveying pipe. When the sand screening device is used for screening sand, the sand which does not meet the requirement can automatically fall down from the interiors of the conveying pipe and the second-stage screening assembly, so that the phenomenon that the sand is accumulated in the interiors of the conveying pipe and the second-stage screening assembly is not prone to occurring, and at the moment, an operator does not need to manually clean the sand; and therefore, labor is saved when the sand is screened through the screening device.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening devices, and in particular relates to a fine sand screening device for construction engineering. Background Art

[0002] Sand is an essential basic raw material in the construction field. The sand particles in the sand are also divided into different grades and have different uses. Therefore, the sand needs to be screened through a screening device before use.

[0003] CN216297049U on the Chinese patent website discloses a fine sand screening device for construction, including a bottom plate, an outer frame, a push block, a push rod and a first screen. The upper side of the bottom plate is connected to the outer frame, and push blocks are symmetrically connected to the left and right sides of the upper part of the outer frame in a sliding manner. Push rods are connected to the push blocks, and the first screen is connected between the push rods.

[0004] Since the screen is set horizontally, the coarse sand screened out by the screen will accumulate on the top of the screen when the sand is screened. In order to allow the subsequent sand to be screened normally, the operator is required to clean the accumulated coarse sand more frequently, which makes it more laborious to use the screening device.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] In view of the problems in the related technology, the utility model proposes a fine sand screening device for construction engineering to overcome the above technical problems existing in the existing related technology.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model discloses a fine sand screening device for construction engineering, comprising a conveying pipe, the top of the conveying pipe is fixedly connected with a feeding hopper, a transport component is arranged inside the conveying pipe, a mounting groove is opened at the bottom of the conveying pipe, a screen is fixedly connected to the inner wall of the mounting groove, a discharging frame is fixedly connected to the bottom of the conveying pipe, a secondary screening component is fixedly connected to the bottom of the conveying pipe corresponding to the screen, a material guiding component is fixedly connected to the bottom of the secondary screening component, and a collecting component is arranged at the bottom of the conveying pipe.

[0009] Furthermore, the transport component includes a rotating shaft, which is rotatably connected to the conveying pipe, and a spiral blade is fixedly connected to the outer surface of the rotating shaft. A mounting frame is fixedly installed at one end of the conveying pipe, and a motor is fixedly installed inside the mounting frame. The output end of the motor passes through the conveying pipe and is fixedly connected to the rotating shaft.

[0010] Furthermore, the secondary screening assembly includes a shielding frame, a screening plate is fixedly connected to the bottom of the shielding frame, a screening hole is opened on the top of the screening plate, the mounting groove passes through the shielding frame, and the shielding frame and the screening plate are arranged obliquely.

[0011] Furthermore, the material guiding assembly comprises a gathering frame, which covers the sieve holes on the sieve plate, and a material discharge trough is provided at the bottom of the inner wall of the gathering frame.

[0012] Furthermore, the collecting assembly includes a collecting box, which is arranged at the bottom of the discharging frame, one end of the shielding frame and the bottom of the discharging trough, and a universal wheel is fixedly installed at the bottom of the collecting box.

[0013] Furthermore, a baffle is fixedly connected to the bottom of the shielding frame, and the baffle is arranged between the shielding frame opening and the discharge chute.

[0014] Furthermore, a support leg is fixedly connected to the outer surface of the delivery pipe.

[0015] The utility model has the following beneficial effects:

[0016] 1. The utility model discloses that when screening sand, the transport component can transport the sand inside the conveying pipe, and with the assistance of the screen, the sand that meets the requirements can fall into the interior of the secondary screening component through the screen during transportation and undergo a secondary screening, while the sand that does not meet the requirements moves to the other end of the conveying pipe under the transportation of the transport component and falls from the interior of the conveying pipe through the discharging frame. At the same time, when the secondary screening component is screening the sand, the sand that meets the requirements can directly fall into the interior of the material guide component. Since the secondary screening component is inclined, the sand that does not meet the requirements can directly roll down from the interior of the secondary screening component under the guidance of the secondary screening component. In summary, when screening the sand, the sand that does not meet the requirements can automatically fall from the interior of the conveying pipe and the secondary screening component, so that the interior of the conveying pipe and the secondary screening component is not prone to sand accumulation, and at this time, there is no need for the operator to manually clean it, so that the operation of screening the sand through the screening device is relatively labor-saving.

[0017] 2. The gathering frame and the shielding frame of the utility model can guide the sand that rolls down and gather it at the same time, so that the collection box can better collect the sand that rolls down. At the same time, under the blocking of the baffle and the guidance of the discharging frame, the sand that does not meet the requirements inside the conveying pipe, the sand that does not meet the requirements on the screening plate and the sand that is finally screened can all be collected separately by the corresponding collection boxes when the sand is screened, and the collected sand of different levels will not be mixed during collection.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the utility model embodiments, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the external contour structure of the utility model;

[0021] Figure 2 For the utility model Figure 1 Rear view structure diagram;

[0022] Figure 3 This is a schematic diagram of the structure of the material guide assembly of the utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the delivery pipe of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the transport component of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the secondary screening component of the utility model.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Conveying pipe; 2. Feed hopper; 3. Transport assembly; 301. Rotating shaft; 302. Spiral blade; 303. Mounting frame; 304. Motor; 4. Mounting slot; 5. Screen; 6. Discharge frame; 7. Secondary screening assembly; 701. Shielding frame; 702. Screen plate; 703. Screen hole; 8. Material guide assembly; 801. Gathering frame; 802. Discharge slot; 9. Collection assembly; 901. Collection box; 902. Universal wheel; 10. Baffle; 11. Support leg. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the described embodiments are only part of the utility model embodiments, 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.

[0029] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements 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 utility model.

[0030] See also Figure 1-Figure 6 As shown, the utility model is a fine sand screening device for construction engineering, comprising a conveying pipe 1, a feed hopper 2 is fixedly connected to the top of the conveying pipe 1, a transport component 3 is arranged inside the conveying pipe 1, a mounting groove 4 is opened at the bottom of the conveying pipe 1, a screen 5 is fixedly connected to the inner wall of the mounting groove 4, a discharge frame 6 is fixedly connected to the bottom of the conveying pipe 1, a secondary screening component 7 is fixedly connected to the bottom of the conveying pipe 1 corresponding to the screen 5, a material guide component 8 is fixedly connected to the bottom of the secondary screening component 7, and a collecting component 9 is arranged at the bottom of the conveying pipe 1.

[0031] The sand to be screened is fed into one end of the conveying pipe 1 through the feed hopper 2. At this time, the transport component 3 starts to transport the sand inside the conveying pipe 1 and moves the sand to the other end of the conveying pipe 1. In this process, the finer sand can pass through the screen 5 and directly fall into the second-level screening component 7, while the sand that does not meet the requirements continues to move under the drive of the transport component 3 and falls from the inside of the conveying pipe 1 through the discharge frame 6. The sand that falls into the second-level screening component 7 begins to be screened for the second time, and the sand that meets the requirements will directly fall into the inside of the material guide component 8 and fall into the inside of the collecting component 9 under the guidance of the material guide component 8. At the same time, the coarser sand on the second-level screening component 7 will directly roll down under the guidance of the second-level screening component 7 and roll out from the inside of the second-level screening component 7.

[0032] When screening the sand, the transport component 3 can transport the sand inside the conveying pipe 1. At the same time, with the assistance of the screen 5, the sand that meets the requirements can fall into the interior of the secondary screening component 7 through the screen 5 during transportation and undergo secondary screening. The sand that does not meet the requirements moves to the other end of the conveying pipe 1 under the transportation of the transport component 3 and falls from the interior of the conveying pipe 1 through the discharging frame 6. At the same time, when the secondary screening component 7 screens the sand, the sand that meets the requirements can directly fall into the interior of the material guide component 8, while the sand that does not meet the requirements rolls down directly from the interior of the secondary screening component 7 under the guidance of the secondary screening component 7. In summary, when screening the sand, the sand that does not meet the requirements can automatically fall from the interior of the conveying pipe 1 and the secondary screening component 7, so that the interior of the conveying pipe 1 and the secondary screening component 7 is not prone to sand accumulation. At this time, there is no need for the operator to manually clean it, which makes the operation of screening the sand through the screening device relatively labor-saving.

[0033] In one embodiment, for the above-mentioned transport component 3, the transport component 3 includes a rotating shaft 301, the rotating shaft 301 is rotatably connected to the conveying pipe 1, the outer surface of the rotating shaft 301 is fixedly connected with a spiral blade 302, one end of the conveying pipe 1 is fixedly installed with a mounting frame 303, the interior of the mounting frame 303 is fixedly installed with a motor 304, and the output end of the motor 304 passes through the conveying pipe 1 and is fixedly connected to the rotating shaft 301.

[0034] The motor 304 can drive the spiral blade 302 to rotate inside the conveying pipe 1 through the rotating shaft 301, so that the spiral blade 302 can push the sand at one end of the conveying pipe 1 to the other end of the conveying pipe 1. The above arrangement allows the sand to move normally inside the conveying pipe 1. At the same time, the sand that does not meet the requirements can be directly moved to the other end of the conveying pipe 1 under the push of the spiral blade 302, thereby avoiding the accumulation of sand that does not meet the requirements inside the conveying pipe 1.

[0035] In one embodiment, for the above-mentioned secondary screening component 7, the secondary screening component 7 includes a shielding frame 701, the bottom of the shielding frame 701 is fixedly connected with a screening plate 702, the top of the screening plate 702 is provided with a sieve hole 703, the mounting groove 4 passes through the shielding frame 701, and the shielding frame 701 and the screening plate 702 are inclined.

[0036] The sand falling from the screen 5 can fall to the top of the screen plate 702 through the mounting groove 4. Since the screen plate 702 is tilted, the sand on the top of the screen plate 702 can automatically roll down. At the same time, the finer sand in the rolled sand can directly fall into the interior of the material guide assembly 8 through the screen hole 703 and complete the secondary screening. The tilted setting allows the shielding frame 701 and the screen plate 702 to allow the sand to automatically roll down under the influence of its own gravity, so that the sand will not accumulate on the top of the screen plate 702.

[0037] In one embodiment, for the above-mentioned material guiding component 8, the material guiding component 8 includes a gathering frame 801, and the gathering frame 801 covers the sieve holes 703 on the sieve plate 702, and a discharge trough 802 is opened at the bottom of the inner wall of the gathering frame 801.

[0038] The gathering frame 801 can gather the sand that falls from the sieve hole 703. When the sand inside the gathering frame 801 rolls to the discharge trough 802 under the guidance of the gathering frame 801, the sand can be gathered together. This arrangement makes it more convenient to collect the sand. At the same time, the screening plate 702 and the shielding frame 701 also have the function of the gathering frame 801.

[0039] In one embodiment, for the above-mentioned collecting component 9, the collecting component 9 includes a collecting box 901, and the collecting box 901 is arranged at the bottom of the discharging frame 6, one end of the shielding frame 701 and the bottom of the discharging trough 802, and a universal wheel 902 is fixedly installed at the bottom of the collecting box 901.

[0040] The sand falling from the inside of the discharge frame 6 can directly fall into the corresponding collecting box 901, the sand rolling down under the guidance of the screening plate 702 can directly fall into the corresponding collecting box 901, and the sand falling from the inside of the discharge trough 802 can directly fall into the corresponding collecting box 901. In summary, when the sand is screened, the sand that does not meet the requirements inside the conveying pipe 1, the sand that does not meet the requirements on the screening plate 702, and the sand that is finally screened can all be collected separately by the corresponding collecting box 901, so that the screened sand will not be mixed. At the same time, the setting of the universal wheel 902 makes it more convenient to move the collecting box 901.

[0041] In one embodiment, for the above-mentioned shielding frame 701 , a baffle 10 is fixedly connected to the bottom of the shielding frame 701 , and the baffle 10 is arranged between the frame opening of the shielding frame 701 and the discharge chute 802 .

[0042] The baffle 10 can position the collecting box 901 at the bottom of the shielding frame 701 and the discharge trough 802, so that the collecting box 901 can better collect the sand. At the same time, under the shielding of the baffle 10, the sand falling from the shielding frame 701 and the discharge trough 802 is not easy to mix.

[0043] In one embodiment, for the above-mentioned delivery pipe 1 , a support leg 11 is fixedly connected to the outer surface of the delivery pipe 1 .

[0044] The support legs 11 can support the conveying pipe 1 so that the conveying pipe 1 is at a certain distance from the ground, so that the secondary screening component 7, the material guiding component 8 and the collecting component 9 at the bottom of the conveying pipe 1 can work normally. At the same time, the setting of the support legs 11 ensures the overall stability of the conveying pipe 1.

[0045] Through the above technical scheme, 1. When screening the sand, the transport component 3 can transport the sand inside the conveying pipe 1. At the same time, with the assistance of the screen 5, the sand that meets the requirements can fall into the interior of the secondary screening component 7 through the screen 5 during transportation and undergo secondary screening. The sand that does not meet the requirements moves to the other end of the conveying pipe 1 under the transportation of the transport component 3 and falls from the interior of the conveying pipe 1 through the discharge frame 6. At the same time, when the secondary screening component 7 screens the sand, the sand that meets the requirements can directly fall into the interior of the guide component 8. Since the secondary screening component 7 is inclined, the sand that does not meet the requirements can directly roll down from the interior of the secondary screening component 7 under the guidance of the secondary screening component 7. In summary, when screening the sand, the sand that does not meet the requirements can automatically roll out of the conveying pipe 1 and the secondary screening component 7. 1. The sand that rolls down is guided by the baffle 10 and guided by the discharging frame 6. When the sand is screened, the sand that does not meet the requirements in the conveying pipe 1, the sand that does not meet the requirements on the screening plate 702, and the sand that is finally screened can all be collected by the corresponding collecting boxes 901 separately, and the sand of different levels collected will not be mixed when being collected.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A fine sand screening device for construction engineering, comprising a conveying pipe (1), characterized in that: The top of the conveying pipe (1) is fixedly connected to a feed hopper (2), a transport assembly (3) is arranged inside the conveying pipe (1), a mounting groove (4) is provided at the bottom of the conveying pipe (1), a screen (5) is fixedly connected to the inner wall of the mounting groove (4), a discharge frame (6) is fixedly connected to the bottom of the conveying pipe (1), a secondary screening assembly (7) is fixedly connected to the bottom of the conveying pipe (1) corresponding to the screen (5), a material guide assembly (8) is fixedly connected to the bottom of the secondary screening assembly (7), and a collecting assembly (9) is arranged at the bottom of the conveying pipe (1).

2. A fine sand screening device for construction engineering according to claim 1, characterized in that: The transport component (3) comprises a rotating shaft (301), the rotating shaft (301) being rotatably connected to the conveying pipe (1), a spiral blade (302) being fixedly connected to the outer surface of the rotating shaft (301), a mounting frame (303) being fixedly mounted on one end of the conveying pipe (1), a motor (304) being fixedly mounted inside the mounting frame (303), and an output end of the motor (304) passing through the conveying pipe (1) and being fixedly connected to the rotating shaft (301).

3. A fine sand screening device for construction engineering according to claim 2, characterized in that: The secondary screening assembly (7) comprises a shielding frame (701), a screening plate (702) is fixedly connected to the bottom of the shielding frame (701), a screening hole (703) is provided on the top of the screening plate (702), the mounting groove (4) passes through the shielding frame (701), and the shielding frame (701) and the screening plate (702) are arranged obliquely.

4. A fine sand screening device for construction engineering according to claim 3, characterized in that: The material guiding assembly (8) comprises a gathering frame (801), the gathering frame (801) covers the sieve holes (703) on the sieve plate (702), and a material discharge trough (802) is provided at the bottom of the inner wall of the gathering frame (801).

5. A fine sand screening device for construction engineering according to claim 4, characterized in that: The collecting assembly (9) comprises a collecting box (901), and the collecting box (901) is arranged at the bottom of the discharging frame (6), one end of the shielding frame (701) and the bottom of the discharging trough (802), and a universal wheel (902) is fixedly mounted at the bottom of the collecting box (901).

6. A fine sand screening device for construction engineering according to claim 5, characterized in that: A baffle (10) is fixedly connected to the bottom of the shielding frame (701), and the baffle (10) is arranged between the frame opening of the shielding frame (701) and the discharge chute (802).

7. A fine sand screening device for construction engineering according to claim 6, characterized in that: The outer surface of the delivery pipe (1) is fixedly connected with a support leg (11).

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