Sand screening equipment for building construction

Abstract

The utility model relates to the technical field of building construction, in particular to building construction sand screening equipment which comprises a supporting frame, a lower screen plate arranged on the supporting frame and an upper screen frame arranged on the lower screen plate. The upper screen frame and the lower screen plate are installed in a turnover mode and are in point butt joint through a middle fulcrum shaft, a first screening end is arranged at the tail end of the lower screen plate, and a second screening temporary storage cavity is formed in the upper screen frame. A pusher is arranged on the side edge of the lower screen plate, and the pushing end of the pusher is supported on the outer edge of the upper screen frame. The double-layer sand screening treatment procedure is set, the upper screen frame turns over in a reciprocating mode with the middle fulcrum point as the fulcrum relative to the lower screen plate, and therefore the grit screen is driven to fall into the lower screen plate, and meanwhile, due to the fact that the upper screen frame has the downward pressing trend on the falling grit relative to the lower screen plate, the grit screening efficiency is improved. And therefore, gravels with smaller size particles are pushed to penetrate through the lower sieve plate and fall into the second sieved material temporary storage cavity, and then the operation effect of rapid double sand sieving is achieved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically a sand screening device for building construction. Background Technology

[0002] Construction is a production activity carried out by people using various building materials and machinery according to specific design blueprints within a certain space and time to build various types of architectural products. In construction, sand needs to be screened to remove large particles and other impurities, ensuring the quality of the sand used. With the advancement of technology, various sand screening machines have been developed, which has greatly improved production efficiency and saved production costs.

[0003] Existing sand screening equipment includes a frame, a support fixedly connected to one side of the upper surface of the frame, a second motor fixedly installed on the upper surface of the support, a first fixed rod fixedly installed on one side of the lower surface of the frame, a bearing movably sleeved at the bottom of the first fixed rod, a second fixed rod movably sleeved inside the bearing, and a screen plate fixedly connected to the other side of the second fixed rod, with a second screen placed inside the screen plate. However, the above screen structure has certain defects. The screen itself is fixedly installed, and sand and gravel tend to accumulate together, resulting in a limited screening rate. Utility Model Content

[0004] The purpose of this utility model is to provide a sand screening device for building construction to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sand screening device for construction includes a support frame, a lower screen plate disposed on the support frame, and an upper screen frame disposed on the lower screen plate.

[0007] The upper screen frame and the lower screen plate are installed in a folded manner and are connected to each other through the central support shaft. The lower screen plate has a first screening end at its end, and the upper screen frame has a second screening temporary storage cavity inside.

[0008] A pusher is provided on the side edge of the lower screen plate, and the pushing end of the pusher is supported on the outer edge of the upper screen frame.

[0009] As a further embodiment of this utility model: the upper screen frame includes a support frame, a positioning block disposed on the support frame, and an extension frame disposed on both sides of the positioning block. The frame edge of the extension frame is connected to a fixed end, and an outer support frame plate is installed on the fixed end. The other end of the outer support frame plate is connected through a side wing support frame.

[0010] As a further embodiment of this utility model: an offset support column is provided between the outer support frame plate and the side wing support frame, the central support axis is installed on the offset support column, and a screen mesh is provided at the bottom of the outer support frame plate and the side wing support frame.

[0011] As a further embodiment of this utility model: the central support point includes a support kit installed on the upper edge of the lower screen plate, an inner through shaft set on the offset support column, and positioning plates installed at both ends of the inner through shaft. The positioning plates are used to connect the inner through shaft and the support kit.

[0012] As a further embodiment of this utility model: the pusher includes a mounting base block installed on the side edge of the lower screen plate, a support block set on the mounting base block, a swing bolt set on the support block, and a pusher cylinder installed on the swing bolt. The pusher cylinder is equipped with a piston rod at its push end, and the rod end of the piston rod is connected to the upper screen frame through a connecting bolt.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This application includes a double-layer sand screening process. The upper screen frame is the first sand screening process, and the lower screen plate is the second sand screening process. The upper screen frame is the container for sand screening, and the pusher is the driving tool. The pusher is the power end that drives the upper screen frame to reciprocate relative to the lower screen plate with the central support point as the fulcrum. This causes the sand and gravel to fall into the lower screen plate. At the same time, because the upper screen frame itself has a downward pressure on the falling sand and gravel relative to the lower screen plate, it pushes the smaller sand and gravel through the lower screen plate and into the second screening temporary storage chamber, thereby achieving the effect of rapid double sand screening.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0017] Figure 1 A schematic diagram of the overall structure of a sand screening device for building construction provided in an embodiment of this utility model.

[0018] Figure 2 A schematic diagram of the structure of the upper screen frame provided for an embodiment of this utility model.

[0019] Figure 3 This utility model Figure 1 A schematic diagram of the structure of region A in the middle.

[0020] Figure 4 This utility model Figure 1 A structural diagram of region B.

[0021] In the diagram: 11. Support frame; 12. Lower screen plate; 13. Upper screen frame; 14. Second screen material storage chamber; 15. Central support shaft point; 16. First screen material end; 17. Pusher; 21. Support frame; 22. Positioning block; 23. Extension frame; 24. Fixed end; 25. Outer support frame plate; 26. Side wing support frame; 27. Screen material mesh surface; 28. Offset support column; 31. Support kit; 32. Inner through shaft; 33. Positioning piece; 41. Mounting base block; 42. Support block; 43. Swing bolt; 44. Pushing cylinder; 45. Piston rod; 46. Connecting bolt. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, examples of which are shown in the drawings. In the following description relating to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or identical elements.

[0023] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] In one embodiment:

[0026] Please see Figure 1 A sand screening device for building construction is provided, including a support frame 11, a lower screen plate 12 disposed on the support frame 11, and an upper screen frame 13 disposed on the lower screen plate 12.

[0027] The upper screen frame 13 and the lower screen plate 12 are installed in a folding manner and are connected to each other through the central support point 15. The lower screen plate 12 is provided with a first screening end 16 at its end, and the upper screen frame 13 has a second screening temporary storage cavity 14 inside.

[0028] A pusher 17 is provided on the side edge of the lower screen plate 12, and the pushing end of the pusher 17 is supported on the outer edge of the upper screen frame 13.

[0029] This embodiment is used for sand screening in construction. It has a double-layer sand screening process. The upper screen frame 13 is the first sand screening process, and the lower screen plate 12 is the second sand screening process. The upper screen frame 13 is the container for sand screening, and the pusher 17 is the driving tool. The pusher 17 is the power end that drives the upper screen frame 13 to reciprocate relative to the lower screen plate 12 with the central support point 15 as the fulcrum. This causes the sand and gravel to fall into the lower screen plate 12. At the same time, since the upper screen frame 13 has a downward pressure on the falling sand and gravel relative to the lower screen plate 12, it pushes the smaller sand and gravel through the lower screen plate 12 and into the second screening material storage chamber 14, thereby achieving the effect of rapid double sand screening.

[0030] In one embodiment:

[0031] Please see Figure 2 The upper screen frame 13 includes a support frame 21, a positioning block 22 disposed on the support frame 21, and an extension frame 23 disposed on both sides of the positioning block 22. A fixed end 24 is connected to the outer edge of the extension frame 23, and an outer support frame plate 25 is installed on the fixed end 24. The other end of the outer support frame plate 25 is connected via a side wing support frame 26. An offset support column 28 is also disposed between the outer support frame plate 25 and the side wing support frame 26. The central support axis 15 is installed on the offset support column 28. A screen mesh surface 27 is disposed at the bottom of the outer support frame plate 25 and the side wing support frame 26.

[0032] In this embodiment, the support frame 21, the extension frame 23, the side wing support frame 26 and the screen surface 27 are combined to form a concave sand screening frame. The central support point 15 is installed on the offset support column 28. The bottom of the outer support frame plate 25 and the side wing support frame 26 is provided with the screen surface 27, which facilitates the screening of sand and gravel from the screen surface 27.

[0033] In one embodiment:

[0034] Please see Figure 3 The central support point 15 includes a support kit 31 mounted on the upper edge of the lower screen plate 12, an inner through shaft 32 disposed on the offset support column 28, and positioning plates 33 mounted on both ends of the inner through shaft 32. The positioning plates 33 are used to connect the inner through shaft 32 and the support kit 31. A stable shaft connection fulcrum is formed between the positioning plates 33, the support kit 31 and the inner through shaft 32, and the upper screen frame 13 swings with the inner through shaft 32 as the rotation support axis.

[0035] In one embodiment:

[0036] Please see Figure 4The pusher 17 includes a mounting base 41 installed on the side edge of the lower screen plate 12, a support block 42 set on the mounting base 41, a swing bolt 43 set on the support block 42, and a pusher cylinder 44 installed on the swing bolt 43. The pusher end of the pusher cylinder 44 is equipped with a piston rod 45, and the rod end of the piston rod 45 is connected to the upper screen frame 13 through a connecting bolt 46.

[0037] The pusher cylinder 44 is the power implementation structure, and the external cylinder is the power supply component. The pusher cylinder 44 pushes the piston rod 45 to move. The rod end of the piston rod 45 is connected to the upper screen frame 13 through the connecting bolt 46, thereby driving the upper screen frame 13 to move, so that the upper screen frame 13 periodically reciprocates and flips the screened material.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A construction site sand screening device, comprising a support frame, a lower sieve plate arranged on the support frame, and an upper sieve frame arranged on the lower sieve plate; characterized in that, the upper sieve frame is installed in a folding manner with the lower sieve plate and is connected through a middle shaft point, the end of the lower sieve plate is provided with a first sieve material end, and the upper sieve frame is internally provided with a second sieve material temporary storage cavity; the side edge of the lower sieve plate is provided with a pusher, and the pushing end of the pusher is supported on the outer edge of the upper sieve frame.

2. The construction screed sanding device of claim 1, wherein, The upper sieve frame comprises a support frame, a positioning block arranged on the support frame, and an extension frame arranged on both sides of the positioning block, the frame edge of the extension frame is externally connected with a fixed end, the fixed end is provided with an outer support frame plate, and the other end of the outer support frame plate is connected through a side wing support frame.

3. The construction screed sanding device of claim 2, wherein, A biasing support column is further arranged between the outer support frame plate and the side wing support frame, the middle shaft point is installed on the biasing support column, and the bottom of the outer support frame plate and the side wing support frame is provided with a sieve material mesh surface.

4. The construction screed sanding device of claim 3, wherein, The middle shaft point comprises a support sleeve installed on the side edge of the lower sieve plate, an internal penetrating shaft arranged on the biasing support column, and a positioning sheet installed on both ends of the internal penetrating shaft, and the positioning sheet is used to connect the internal penetrating shaft and the support sleeve.

5. The construction screed sanding device of claim 4, wherein, The pusher comprises a mounting base block installed on the side edge of the lower sieve plate, a support block arranged on the mounting base block, a swing bolt arranged on the support block, and a pusher cylinder installed on the swing bolt, a piston rod is installed on the pushing end of the pusher cylinder, and the rod end of the piston rod is connected with the upper sieve frame through a connecting bolt.

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