Gravel screening device for construction site

By designing a rotating screen and supporting structure, the problems of high noise, low efficiency, and clogging in existing sand and gravel screening devices have been solved, achieving low noise, high efficiency, and stable sand and gravel screening results.

CN223628980UActive Publication Date: 2025-12-05NANJING QINGTIAN CONSTR ENG CO LTD
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Patent Information

Application Number
CN202423153134.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-12-05
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing sand and gravel screening devices at construction sites are noisy, have high mechanical wear, low screening efficiency, are prone to clogging, and are inconvenient for sand and gravel feeding.

Method used

It adopts a rotating screen design, combined with an inner support roller, outer support roller and support wheel structure, and is equipped with a cleaning brush to achieve stable rotating screening and automatic screen cleaning, making it convenient for sand and gravel to be fed.

Benefits of technology

It reduces noise pollution, improves screening efficiency and equipment stability, prevents screen clogging, and ensures continuous and efficient screening.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223628980U_ABST
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Abstract

The utility model discloses a construction site gravel screening device which comprises a main support, moving wheels are installed below the main support, a positioning supporting rod is further fixed to the lower side of the main support, an auxiliary support is fixed to the rear side of the main support, a handle is fixed to the outer side of the auxiliary support, and a driving motor is further installed on the outer side of the auxiliary support. The output end of the driving motor is fixedly connected with a screen, and the screen is arranged on the inner side of the main support. According to the gravel screening device for the construction site, the screen capable of rotating is arranged, rapid screening of gravel is achieved in a rotating mode, large vibration noise cannot be generated, then adverse effects on the surrounding environment are avoided, meanwhile, the rotating screening state of the screening device is stable, screening work can be efficiently conducted for a long time, and the screening efficiency is improved. And a large opening is formed in the front side of the screen, gravel materials can be directly put in, continuous and rapid screening of the gravel is facilitated, and the use performance of the screening device is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field, concretely is building site sandstone screening device. BACKGROUND

[0002] In the construction process of building site, sandstone is necessary building material, at present, the sandstone raw material used in building site, because the specification is not unified, so sandstone usually needs to guarantee normal use through screening before use.

[0003] At present, the sandstone screening device in prior art, in actual use, usually adopts the way of vibrating screening, this way is noisy, has adverse effect on the surrounding environment, and is also high to the degree of mechanical wear and tear, leads to the screening device to be easy to appear damage, influences screening work efficiency, and the device of vibrating screening also needs to put sand material by lifting sandstone, is inconvenient for the progress of screening work, and for the screening of sandstone, sandstone is easy to block the screen mesh, reduces screening efficiency, so we propose building site sandstone screening device to solve the problems in the above. UTILITY MODEL CONTENTS

[0004] The utility model discloses a building site sandstone screening device to solve the low use performance of the sandstone screening device in the market, and the problem of easy to appear block.

[0005] To achieve the above object, the utility model provides the following technical scheme: a building site sandstone screening device, including main support, the mobile wheel is installed below the main support, the lower side of main support is also fixed with the positioning support rod, the rear side of main support is fixed with vice support, the outside of vice support is fixed with handle, the outside of vice support is also installed with drive motor, the output of drive motor is fixedly connected with screen mesh, the screen mesh is arranged at the inboard of main support, the guide plate is arranged below the screen mesh, the both sides of guide plate are fixedly connected with main support, the main support is provided with main support assembly for the stable rotation of screen mesh between main support and screen mesh, the upper portion of main support is also installed with vice support assembly for reinforcing the working state of screen mesh, the main support is also installed with cleaning assembly for cleaning the sandstone adhesion in screen mesh.

[0006] Preferably, the tail end of the screen mesh is connected with the vice support through a bearing.

[0007] Preferably, the main support assembly comprises an inner supporting wheel, an inner supporting wheel rail, an outer supporting wheel rail and an outer supporting wheel, the inner supporting wheel and the outer supporting wheel are installed on the inboard of the main support, the inner supporting wheel rail and the outer supporting wheel rail are fixed on the screen mesh, and the inner supporting wheel rail and the outer supporting wheel rail are connected with the inner supporting wheel and the outer supporting wheel through contact connection.

[0008] Preferably, the inner and outer supporting wheels are symmetrically arranged in two groups on both sides of the lower side of the inner and outer supporting wheel tracks, and the screen is rolled by the inner and outer supporting wheels and the inner and outer supporting wheel tracks.

[0009] Preferably, the main support is fixed with a fixing rod on the inner side, and the fixing rod is uniformly distributed on the outer side of the screen.

[0010] Preferably, the auxiliary support assembly comprises a fixing plate and a supporting wheel, the fixing plate is installed on the uppermost position of the front side of the main support by bolts, two supporting wheels are installed on the inner side of the fixing plate, and the two supporting wheels are connected to the upper position of the inner side of the outer supporting wheel track.

[0011] Preferably, the cleaning assembly comprises a cleaning brush, the cleaning brush is fixed on the upper position of the front side of the main support by bolts, the cleaning brush is symmetrically arranged in two groups, and the bristles of the cleaning brush are located on the inner upper side of the screen.

[0012] Compared with the prior art, the building site sand screening device has the beneficial effects that:

[0013] (1) The building site sand screening device is provided with a screen that can rotate, the screen realizes rapid screening of sand and gravel in a rotating manner, does not produce a large vibration noise, thereby avoiding adverse effects on the surrounding environment, the rotating screening state of the screening device is stable, the screening device can long-term and efficiently perform screening work, and the large opening is arranged on the front side of the screen, sand and gravel can be directly put in, so that the screening of sand and gravel is continuously and rapidly completed, and the use performance of the screening device is improved.

[0014] (2) The building site sand screening device is provided with an inner supporting wheel, an outer supporting wheel and a supporting wheel on the main support, and the working state of the screen is further ensured to be stable, so that the normal screening work is ensured.

[0015] (3) The building site sand screening device is provided with a cleaning brush in the screen, the sand and gravel on the screen can be automatically cleaned by the rotation of the screen, the sand and gravel is prevented from being adhered to the screen to block the mesh, and the screening efficiency is effectively ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 3 It is a main support main section structure schematic view of the utility model;

[0019] Figure 4 It is a screen internal section structure schematic view of the utility model.

[0020] In the figure: 1, main support; 2, moving wheel; 3, positioning support rod; 4, vice support; 5, inner supporting wheel; 6, inner supporting wheel rail; 7, fixed rod; 8, screen; 9, outer supporting wheel rail; 10, outer supporting wheel; 11, guide plate; 12, cleaning brush; 13, fixed sheet; 14, handle; 15, driving motor; 16, supporting wheel. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figures 1-4 The utility model provides technical scheme: a building site sandstone screening device, including main support 1, main support 1 below is installed with moving wheel 2, the downside of main support 1 is still fixed with positioning support rod 3, the rear side of main support 1 is fixed with vice support 4, the outside of vice support 4 is fixed with handle 14, the outside of vice support 4 is still installed with driving motor 15, and the output end of driving motor 15 is fixedly connected with screen 8.

[0023] Preferably, the tail end of the screen 8 is connected to the vice support 4 by a bearing, which can support the tail end of the screen 8 through the vice support 4, thereby enhancing the stability of the screen 8 in operation.

[0024] The screen 8 is arranged on the inner side of the main support 1, and the guide plate 11 is arranged below the screen 8. The guide plate 11 is fixedly connected to the main support 1 on both sides, and the main support 1 and the screen 8 are provided with a main support assembly for stable rotation of the screen 8.

[0025] Further, the main support assembly includes an inner supporting wheel 5, an inner supporting wheel rail 6, an outer supporting wheel rail 9 and an outer supporting wheel 10. The inner supporting wheel 5 and the outer supporting wheel 10 are installed on the inner side of the main support 1, the inner supporting wheel rail 6 and the outer supporting wheel rail 9 are fixed on the screen 8, and the inner supporting wheel 5 and the inner supporting wheel rail 6 are in contact connection, and the outer supporting wheel rail 9 and the outer supporting wheel 10 are in contact connection, which ensures that the screen 8 can rotate stably and efficiently on the inner side of the main support 1.

[0026] Further, the inner supporting wheel 5 and the outer supporting wheel 10 are respectively arranged in two groups on both sides of the inner supporting wheel rail 6 and the outer supporting wheel rail 9, and the screen 8 is supported by the inner supporting wheel 5 and the outer supporting wheel 10 through the inner supporting wheel rail 6 and the outer supporting wheel rail 9, so that the support effect of the screen 8 is more uniform and stable, thereby ensuring the stable and long-term rotation of the screen 8.

[0027] The upper side of the main support 1 is further provided with a vice support assembly for reinforcing the working state of the screen 8.

[0028] Further, the vice support assembly comprises a fixed sheet 13 and a support wheel 16, the fixed sheet 13 is installed on the uppermost position of the front side of the main support 1 through bolts, the inner side of the fixed sheet 13 is provided with two support wheels 16, both of which are connected to the upper position of the inner side of the outer supporting wheel rail 9, the front end of the screen 8 can be hung by the support wheel 16, which not only strengthens the stress performance of the front end of the screen 8, but also improves the state stability of the screen 8.

[0029] The main support 1 is also provided with a cleaning assembly for cleaning the sand and stone adhered inside the screen 8.

[0030] Further, the cleaning assembly comprises a cleaning brush 12, which is fixed on the upper position of the front side of the main support 1 through bolts, and the cleaning brush 12 is symmetrically provided with two groups, the bristles of the cleaning brush 12 are located at the upper position inside the screen 8, the bristles of the cleaning brush 12 can adopt metal bristles, which can fully complete the cleaning work inside the screen 8, and the sand and stone cleaned by the cleaning brush 12 can freely fall, avoiding the accumulation of sand and stone affecting the cleaning work.

[0031] Further, the inner side of the main support 1 is fixed with a fixed rod 7, which is uniformly distributed outside the screen 8, ensuring the state stability of the main support 1, and also having a protective effect on the screen 8.

[0032] Working principle: when using the building site sand and stone screening device, first lift the handle 14 on the vice support 4 to make the positioning support rod 3 off the ground, and the moving wheel 2 supports the entire device alone, so that the position of the entire device can be controlled by the handle 14 to move;

[0033] After moving the device to the working position, the positioning support rod 3 falls to the ground, and the moving wheel 2 supports the entire device, ensuring the state stability of the device, and then starting the driving motor 15 to make the screen 8 rotate in the main support 1;

[0034] At the same time, the screen 8 rolls on the inner supporting wheel 5 and the outer supporting wheel 10 through the inner supporting wheel rail 6 and the outer supporting wheel rail 9 respectively, and the support wheel 16 on the fixed sheet 13 can stabilize the upper position of the end of the screen 8, ensuring that the screen 8 can be stably rotated by the driving motor 15;

[0035] During the rotation of the screen 8, the sand and stone material is directly put into the screen 8, and the rotation of the screen 8 drives the sand and stone material to move, so that the screening work of the sand and stone material can be completed by the screen 8, and the screened sand and stone falls on the guide plate 11, which is conveyed to the rear of the device by the guide plate 11, to facilitate the use of the screened sand and stone;

[0036] The large size sand and gravel remaining after the screening will be retained in the screen 8, and since the screen 8 is in a rotating state, the large size sand and gravel will not block the mesh of the screen 8, i.e. will not affect the subsequent screening work, and when a certain amount of large size sand and gravel is retained in the screen 8, the handle 14 can be lifted to tilt the screen 8 forward to quickly dump the large size sand and gravel;

[0037] During the screening work, the rotation of the screen 8 will contact the cleaning brush 12 to automatically clean the sand and gravel mixed in the mesh inside the screen 8, so as to ensure the normal progress of the subsequent screening work;

[0038] The above is the working process of the screening device, and the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0039] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims

1. A construction site sand and stone screening device comprising a main support (1), characterized in that: The main support (1) is provided with a moving wheel (2) below, and a positioning support rod (3) is fixed to the lower side of the main support (1), a vice support (4) is fixed to the rear side of the main support (1), a handle (14) is fixed to the outer side of the vice support (4), and a driving motor (15) is installed on the outer side of the vice support (4), and the output end of the driving motor (15) is fixedly connected with a screen (8). The screen (8) is arranged on the inner side of the main support (1), and a material guide plate (11) is arranged below the screen (8), the material guide plate (11) is fixedly connected with the main support (1) on both sides, a main support assembly for stable rotation of the screen (8) is arranged between the main support (1) and the screen (8), and a vice support assembly for reinforcing the working state of the screen (8) is also installed above the main support (1). A cleaning assembly for cleaning the sand and stones adhered to the inside of the screen (8) is also installed on the main support (1).

2. A construction site aggregate screening apparatus according to claim 1, characterised in that: The tail end of the screen (8) and the vice support (4) are connected by a bearing.

3. The construction site aggregate screening apparatus of claim 1, wherein: The main support assembly comprises an inner supporting wheel (5), an inner supporting wheel rail (6), an outer supporting wheel rail (9) and an outer supporting wheel (10), the inner supporting wheel (5) and the outer supporting wheel (10) are installed on the inner side of the main support (1), the inner supporting wheel rail (6) and the outer supporting wheel rail (9) are fixed to the screen (8), and the inner supporting wheel (5) and the inner supporting wheel rail (6) are in contact connection, and the outer supporting wheel rail (9) and the outer supporting wheel (10) are also in contact connection.

4. A construction site aggregate screening apparatus according to claim 3, characterised in that: The inner supporting wheel (5) and the outer supporting wheel (10) are symmetrically arranged on both sides of the inner supporting wheel rail (6) and the outer supporting wheel rail (9) below, and the screen (8) is rolled by the inner supporting wheel (5) and the outer supporting wheel (10) through the inner supporting wheel rail (6) and the outer supporting wheel rail (9).

5. The construction site aggregate screening apparatus of claim 1, wherein: The inner side of the main support (1) is fixedly provided with a fixed rod (7), and the fixed rod (7) is uniformly distributed on the outer side of the screen (8).

6. The construction site aggregate screening apparatus of claim 3, wherein: The vice support assembly comprises a fixed sheet (13) and a supporting wheel (16), the fixed sheet (13) is installed on the uppermost position of the front side of the main support (1) by bolts, two supporting wheels (16) are installed on the inner side of the fixed sheet (13), and the two supporting wheels (16) are connected to the inner side of the outer supporting wheel rail (9) at the upper position.

7. The construction site aggregate screening apparatus of claim 1, wherein: The cleaning assembly comprises a cleaning brush (12), the cleaning brush (12) is fixed to the upper position of the front side of the main support (1) by bolts, and two groups of the cleaning brush (12) are symmetrically arranged, and the bristles of the cleaning brush (12) are located at the upper position inside the screen (8).