Efficient sand screening device for building construction

Abstract

The utility model provides an efficient sand screening device for building construction, belongs to the technical field of building construction, and aims to solve the problem that sand screening efficiency of the sand screening device is affected due to the fact that certain time needs to be consumed for sand dispersion. Comprising a positioning supporting bottom frame, a positioning transmission rotating shaft, a sand screening roller, a reciprocating self-locking driving piece, a sand feeding hopper, a limiting connecting base and a sand dispersing disc. The positioning transmission rotating shaft is rotationally connected to the middle of the positioning supporting bottom frame. The sand screening roller is fixedly connected to the outer side of the positioning transmission rotating shaft; the reciprocating self-locking driving piece is in bolted connection with the right side of the positioning supporting bottom frame; the sand feeding hopper is connected to the upper portion of the positioning supporting bottom frame through bolts. The limiting connecting bases are fixedly connected to the front side and the rear side of the sand feeding hopper. The sand dispersing disc is hinged to the inner side of the limiting connecting seat; according to the sand screening device, the sand dispersing efficiency is improved, a large amount of time is saved, and the sand screening efficiency of the sand screening device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and more specifically, it particularly relates to an efficient sand screening device for building construction. Background Technique

[0002] When constructing a building, it is mostly necessary to first screen the sand through a sand screening device, and then mix the screened sand with cement, stones, etc. in a certain proportion to form concrete, and then use the concrete to pour the walls, columns, beams, etc. of the building. Most of the existing sand screening devices are drum type. When screening sand, the sand is put into the feeding hopper, and the sand will fall from the outlet of the feeding hopper into the screening drum, and the sand is screened by the rotation of the screening drum.

[0003] For example, CN217289180U discloses an efficient sand screening device for building construction, which relates to the technical field of sand screening devices, including a frame body. A motor a is fixedly installed on the top surface of the frame body. The output end of the motor a is fixedly connected with a screening barrel. A support frame is fixedly installed on the top surface of the frame body near one side. A feeding port is opened on one side of the screening barrel. A collection box is fixedly installed at the bottom of the frame body. A screen is fixedly installed inside the collection box. A motor b is fixedly installed on one side of the collection box. The output end of the motor b is fixedly connected with a threaded rod. A limiting rod is installed inside the collection box at a position corresponding to the threaded rod. During actual use, by setting the frame body, motor a, screening barrel, support frame, feeding port, collection box, screen, motor b, threaded rod, limiting rod and scraper, the screened sand can be automatically collected, avoiding the cumbersome operation of manually recycling the sand and being beneficial to actual use.

[0004] Based on the above, when the sand enters the screening drum from the feeding hopper, it directly falls on the same position of the screening drum. It is necessary to rotate the screening drum to disperse the piled-up sand, and it takes a certain amount of time for the sand to disperse, which not only affects the screening efficiency of the sand screening device for sand but also affects the use effect of the sand screening device. Content of the Utility Model

[0005] In order to solve the above technical problems, the utility model provides an efficient sand screening device for building construction to solve the problem that when the sand enters the screening drum from the feeding hopper, it directly falls on the same position of the screening drum. It is necessary to rotate the screening drum to disperse the piled-up sand, and it takes a certain amount of time for the sand to disperse, which not only affects the screening efficiency of the sand screening device for sand but also affects the use effect of the sand screening device.

[0006] The purpose and effect of the efficient sand screening device for building construction of the utility model are achieved by the following specific technical means:

[0007] The sand screening device of claim 1, wherein the positioning support frame comprises a positioning transmission shaft, a sand screening drum, a reciprocating self-locking driving member, a sand feeding hopper, a cleaning structure, a dust collecting structure, a limiting connecting seat, a sand raising structure and a sand dispersion plate; the positioning transmission shaft is rotatably connected to the middle part of the positioning support frame; the sand screening drum is fixedly connected to the outer side of the positioning transmission shaft; the reciprocating self-locking driving member is bolted to the right side of the positioning support frame, the motor shaft of the reciprocating self-locking driving member is coaxially fixedly connected to the positioning transmission shaft; the sand feeding hopper is bolted to the upper part of the positioning support frame; the cleaning structure is arranged on the right side of the positioning support frame; the dust collecting structure is arranged on the left side of the positioning support frame; a conveyor belt is arranged in the middle part of the positioning support frame; two limiting connecting seats are provided, and the two limiting connecting seats are respectively fixedly connected to the front and rear sides of the sand feeding hopper; the sand raising structure is arranged at the lower part of the sand feeding hopper; the sand dispersion plate is hinged to the inner sides of the two limiting connecting seats by a torsion spring.

[0008] Furthermore, the sand-raising structure includes a positioning mounting plate, a transmission worm gear and a synchronous transmission structure; the positioning mounting plate is welded to the lower part of the sand feed hopper; the transmission worm gear is rotatably connected to the lower side of the positioning mounting plate; the synchronous transmission structure is a synchronous belt transmission mechanism, and the transmission worm gear and the sand dispersion disk are connected through the synchronous transmission structure.

[0009] Furthermore, the sand-raising structure also includes a transmission worm and a scroll spring; the transmission worm is rotatably connected to the lower side of the positioning mounting plate, and the transmission worm and the transmission worm wheel are engaged with each other; the transmission worm is elastically connected to the positioning mounting plate through the scroll spring.

[0010] Furthermore, the sand-raising structure also includes an incomplete gear and a transmission gear; the incomplete gear is fixedly connected to the right side of the positioning transmission shaft; and the transmission gear is fixedly connected to the right side of the transmission worm.

[0011] Furthermore, the dust collecting structure includes a dust collection box and a dust collection pipe; two dust collection boxes are provided, and the two dust collection boxes are respectively bolted to the front and rear sides of the positioning support base, and the inner sides of the two dust collection boxes are bolted to fans and filter cloths; two dust collection pipes are provided, and the two dust collection pipes are respectively fixedly connected to the upper parts of the two dust collection boxes.

[0012] Furthermore, the cleaning structure includes a limit guiding plate, a sand cleaning scraper, and a reset elastic member; the limit guiding plate is fixedly connected to the right side of the positioning support chassis; the sand cleaning scraper is slidably connected to the inside of the limit guiding plate; there are multiple reset elastic members, and the sand cleaning scraper is elastically connected to the limit guiding plate through the multiple reset elastic members.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model guides dust through a dust collection pipe, facilitating the collection of dust, effectively reducing the dust phenomenon in the sand screening site, and avoiding the situation where workers inhale a large amount of dust and affect their physical health. The sand cleaning scraper prevents the sand adhered to the conveyor belt from falling everywhere, effectively ensuring the sand conveying effect of the conveyor belt. The positive and reverse rotation of the driving worm gear drives the sand dispersion disk to swing reciprocally. Through the action of the sand dispersion disk, the sand is lifted, and the sand is dispersed in the air and falls at different positions of the sand screening drum, effectively improving the sand dispersion efficiency, saving a lot of time, improving the sand screening efficiency of the sand screening device, and further improving the use effect of the sand screening device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the utility model.

[0016] Figure 2 is the installation position schematic diagram of the reciprocating self-locking driving member of the utility model.

[0017] Figure 3 is the installation position schematic diagram of the limit guiding plate of the utility model.

[0018] Figure 4 is the disassembled structural schematic diagram of the limit guiding plate and the sand cleaning scraper of the utility model.

[0019] Figure 5 is the installation position schematic diagram of the sand dispersion disk of the utility model.

[0020] Figure 6 is the positional relationship schematic diagram of the limit connecting seat and the sand dispersion disk of the utility model.

[0021] Figure 7 is the cooperation relationship schematic diagram of the driving worm gear and the driving worm of the utility model.

[0022] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0023] 1. Positioning support chassis; 101. Dust collection box; 102. Dust collection pipe; 103. Limit guiding plate; 104. Sand cleaning scraper; 105. Reset elastic member; 2. Positioning drive rotating shaft; 201. Incomplete gear; 3. Sand screening drum; 4. Reciprocating self-locking drive member; 5. Sand feed hopper; 502. Positioning mounting plate; 503. Driving worm gear; 504. Driving worm; 505. Volute spring; 506. Driving gear; 507. Synchronous drive structure; 6. Limit connection seat; 7. Sand dispersion plate. Specific embodiments

[0024] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and embodiments.

[0025] Embodiment 1:

[0026] As shown in the attached Figure 1 to the attached Figure 4 figures:

[0027] The present utility model provides an efficient sand screening device for construction, including a positioning support chassis 1, a positioning drive rotating shaft 2, a sand screening drum 3, a reciprocating self-locking drive member 4, a sand feed hopper 5, a cleaning structure and a dust collection structure; the positioning drive rotating shaft 2 is rotatably connected to the middle of the positioning support chassis 1; the sand screening drum 3 is fixedly connected to the outside of the positioning drive rotating shaft 2; the reciprocating self-locking drive member 4 is bolted to the right side of the positioning support chassis 1, and the motor shaft of the reciprocating self-locking drive member 4 is coaxially and fixedly connected to the positioning drive rotating shaft 2; the sand feed hopper 5 is bolted to the upper part of the positioning support chassis 1; the cleaning structure is arranged on the right side of the positioning support chassis 1; the dust collection structure is arranged on the left side of the positioning support chassis 1; a conveyor belt is arranged in the middle of the positioning support chassis 1.

[0028] Among them, the dust collection structure includes a dust collection box 101 and a dust collection pipe 102; there are two dust collection boxes 101, and the two dust collection boxes 101 are respectively bolted to the front and back sides of the positioning support chassis 1, and a blower and a filter cloth are bolted to the inner sides of the two dust collection boxes 101; there are two dust collection pipes 102, and the two dust collection pipes 102 are respectively fixedly connected to the upper parts of the two dust collection boxes 101.

[0029] Among them, the cleaning structure includes a limit guiding plate 103, a sand cleaning scraper 104 and a reset elastic member 105; the limit guiding plate 103 is fixedly connected to the right side of the positioning support chassis 1; the sand cleaning scraper 104 is slidably connected to the inside of the limit guiding plate 103; there are multiple reset elastic members 105, and the sand cleaning scraper 104 is elastically connected to the limit guiding plate 103 through multiple reset elastic members 105.

[0030] The specific usage and function of this embodiment are as follows: start the reciprocating self-locking drive member 4, the conveyor belt and the fan. At this time, the reciprocating self-locking drive member 4 will drive the positioning transmission shaft 2 to rotate, so that the positioning transmission shaft 2 drives the sand screening drum 3 to rotate, and add sand into the sand feed hopper 5, so that the sand enters the sand screening drum 3 along the sand feed hopper 5. At this time, the sand screening drum 3 will screen the sand. At this time, the wind force generated by the fan will attract the dust generated in the sand screening process, so that the dust enters the dust collection box 101 along the dust collection pipe 102. During the operation of the conveyor belt, the reset elastic member 105 will push the sand cleaning scraper 104, so that the sand cleaning scraper 104 is always in close contact with the conveyor belt, thereby cleaning the sand adhered to the conveyor belt, and the limiting guide plate 103 will limit and guide the sand cleaning scraper 104.

[0031] Embodiment 2:

[0032] As attached Figure 2 To the attached Figure 7 As shown:

[0033] On the basis of Example 1, it also includes a limited connecting seat 6, a sand-raising structure and a sand dispersion plate 7; two limited connecting seats 6 are provided, and the two limited connecting seats 6 are respectively fixedly connected to the front and rear sides of the sand feed hopper 5; the sand-raising structure is arranged at the lower part of the sand feed hopper 5; the sand dispersion plate 7 is hinged to the inner side of the two limited connecting seats 6 through a torsion spring.

[0034] Among them, the sand-raising structure includes a positioning mounting plate 502, a transmission worm gear 503 and a synchronous transmission structure 507; the positioning mounting plate 502 is welded to the lower part of the sand feed hopper 5; the transmission worm gear 503 is rotatably connected to the lower side of the positioning mounting plate 502; the synchronous transmission structure 507 is a synchronous belt transmission mechanism, and the transmission worm gear 503 is connected to the sand dispersion disk 7 through the synchronous transmission structure 507.

[0035] Among them, the sand-raising structure also includes a transmission worm 504 and a scroll spring 505; the transmission worm 504 is rotatably connected to the lower side of the positioning mounting plate 502, and the transmission worm 504 and the transmission worm wheel 503 are engaged with each other; the transmission worm 504 is elastically connected to the positioning mounting plate 502 through the scroll spring 505.

[0036] The sand-raising structure further includes an incomplete gear 201 and a transmission gear 506 ; the incomplete gear 201 is fixedly connected to the right side of the positioning transmission shaft 2 ; and the transmission gear 506 is fixedly connected to the right side of the transmission worm 504 .

[0037] Specific usage method and function of this embodiment: When the sand enters the sand screening drum 3 from the sand feed hopper 5, it will first fall into the sand dispersing plate 7. When the positioning drive rotating shaft 2 rotates, it will drive the incomplete gear 201 to rotate. When the incomplete gear 201 meshes with the drive gear 506, it will push the drive gear 506 and the drive worm 504 to rotate in the positioning mounting plate 502. At this time, the drive worm 504 will drive the drive worm gear 503 to rotate. Under the action of the synchronous drive structure 507, the drive worm gear 503 drives the sand dispersing plate 7 to rotate in the limit connection seat 6. At this time, the sand dispersing plate 7 will sprinkle the sand upward, and after the sand is dispersed, it will fall into the sand screening drum 3 again. When the incomplete gear 201 no longer meshes with the drive gear 506, the volute spring 505 will drive the drive worm 504 to reverse, so that the sand dispersing plate 7 returns to its original position.

[0038] In this article, the following points need to be noted:

[0039] 1. The drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0040] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0041] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. An efficient sand screening device for building construction, comprising a positioning support chassis (1), a positioning drive rotating shaft (2), a sand screening drum (3), a reciprocating self-locking drive member (4), a sand feed hopper (5), a cleaning structure, a dust collection structure, a limit connection seat (6), a sand lifting structure, and a sand dispersion plate (7); the positioning drive rotating shaft (2) is rotatably connected to the middle of the positioning support chassis (1); the sand screening drum (3) is fixedly connected to the outside of the positioning drive rotating shaft (2); the reciprocating self-locking drive member (4) is bolted to the right side of the positioning support chassis (1), and the motor shaft of the reciprocating self-locking drive member (4) is coaxially and fixedly connected to the positioning drive rotating shaft (2); characterized in that: The sand feed hopper (5) is bolted to the upper part of the positioning support base (1); the cleaning structure is arranged on the right side of the positioning support base (1); the dust collecting structure is arranged on the left side of the positioning support base (1); a conveyor belt is arranged in the middle of the positioning support base (1); two limiting connection seats (6) are provided, and the two limiting connection seats (6) are respectively fixedly connected to the front and rear sides of the sand feed hopper (5); the sand raising structure is arranged at the lower part of the sand feed hopper (5); and the sand dispersion plate (7) is hinged to the inner sides of the two limiting connection seats (6) through a torsion spring.

2. The high-efficiency sand screening device for building construction according to claim 1, characterized in that: The dust collecting structure comprises a dust collecting box (101) and a dust collecting pipe (102); two dust collecting boxes (101) are provided, and the two dust collecting boxes (101) are respectively bolted to the front and rear sides of the positioning support base frame (1), and the inner sides of the two dust collecting boxes (101) are both bolted to a fan and a filter cloth; two dust collecting pipes (102) are provided, and the two dust collecting pipes (102) are respectively fixedly connected to the upper parts of the two dust collecting boxes (101).

3. The high-efficiency sand screening device for building construction according to claim 1, characterized in that: The cleaning structure comprises a limiting guide plate (103), a sand cleaning scraper (104) and a reset elastic member (105); the limiting guide plate (103) is fixedly connected to the right side of the positioning support base (1); the sand cleaning scraper (104) is slidably connected to the inner side of the limiting guide plate (103); a plurality of reset elastic members (105) are provided, and the sand cleaning scraper (104) is elastically connected to the limiting guide plate (103) through the plurality of reset elastic members (105).

4. The high-efficiency sand screening device for building construction according to claim 1, characterized in that: The sand-raising structure comprises a positioning mounting plate (502), a transmission worm gear (503) and a synchronous transmission structure (507); the positioning mounting plate (502) is welded to the lower part of the sand feed hopper (5); the transmission worm gear (503) is rotatably connected to the lower side of the positioning mounting plate (502); the synchronous transmission structure (507) is a synchronous belt transmission mechanism, and the transmission worm gear (503) and the sand dispersion disk (7) are transmission-connected via the synchronous transmission structure (507).

5. The high-efficiency sand screening device for building construction according to claim 4, wherein: The sand-raising structure further comprises a transmission worm (504) and a scroll spring (505); the transmission worm (504) is rotatably connected to the lower side of the positioning mounting plate (502), and the transmission worm (504) and the transmission worm wheel (503) are meshed with each other; the transmission worm (504) is elastically connected to the positioning mounting plate (502) via the scroll spring (505).

6. The high-efficiency sand screening device for building construction according to claim 5, characterized in that: The sand-raising structure further comprises an incomplete gear (201) and a transmission gear (506); the incomplete gear (201) is fixedly connected to the right side of the positioning transmission shaft (2); and the transmission gear (506) is fixedly connected to the right side of the transmission worm (504).

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