Gravel screening device for concrete production
By introducing screening and vibration damping devices into the sand and gravel screening equipment, the problems of low screening efficiency and clogging are solved, achieving high-efficiency screening and protection of the screen plate, thereby improving working efficiency and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-14
AI Technical Summary
Existing sand and gravel screening devices have low screening efficiency and are prone to clogging, making screening difficult.
A sand and gravel screening device is adopted, which includes a screening mechanism and a shock absorption device. The screening mechanism performs screening through the screening device and a fixed screen plate, while the shock absorption device protects the screen plate through shock absorption springs and a fixed plate to prevent clogging and damage.
It achieves efficient screening of sand and gravel of different sizes, prevents clogging, extends the service life of the screen plate, and improves work efficiency.
Smart Images
Figure CN224114516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete production technology, and in particular to a sand and gravel screening device for concrete production. Background Technology
[0002] In the field of sand and gravel screening, sand and gravel screening equipment is a type of sand and gravel screening device used in concrete production. It is mainly used to screen sand and gravel of different diameters. Sand and gravel refer to a loose mixture of sand particles and gravel. Geologically, mineral or rock particles with a diameter of 0.074–2 mm are called sand, while those with a diameter greater than 2 mm are called gravel or angular gravel. If the gravel in the sand and gravel is mostly gravel, it is called sand and gravel. In everyday life, some people also refer to sandstone as sand and gravel. However, current screening mechanisms have low screening efficiency and are prone to clogging during screening, which makes the screening process difficult. Therefore, improvements are needed. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a sand and gravel screening device for concrete production, which aims to solve the above-mentioned technical problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A sand and gravel screening device for concrete production includes a screen box and a storage box, wherein there are two storage boxes, and further includes:
[0006] The support legs are multiple, and the multiple support legs are disposed on the screen box and fixedly connected to the screen box;
[0007] A feed hopper is provided on the screen box and is fixedly connected to the screen box;
[0008] The discharge channel is provided on the screen box and is fixedly connected to the screen box;
[0009] A control valve is installed inside the discharge channel and is fixedly connected to the discharge channel;
[0010] The screening mechanism has two parts, and the two screening mechanisms are arranged inside the screen box for screening sand and gravel.
[0011] Preferably, the screening mechanism includes:
[0012] A screening device is installed inside the screen box for screening sand and gravel;
[0013] A shock-absorbing device is installed inside the screen box for further screening of sand and gravel.
[0014] Preferably, the screening device includes:
[0015] A fixing part is provided inside the sieve box for fixing the component;
[0016] A drive unit, disposed on the fixed unit, is used to provide power to the screening device.
[0017] Preferably, the fixing part includes:
[0018] A fixed sieve plate is disposed inside the sieve box and is rotatably connected to the sieve box;
[0019] A fixed base is provided on the screen box and is fixedly connected to the screen box;
[0020] A fixing component is installed inside the screen box and is fixedly connected to the screen box.
[0021] Preferably, the driving unit includes:
[0022] A connecting shaft is disposed within the fixing member and is rotatably connected to the fixing member;
[0023] The device has two rotating parts, which are mounted on the connecting shaft and fixedly connected to it.
[0024] A connecting column is disposed on the rotating component and is fixedly connected to the rotating component;
[0025] A pulley is mounted on the connecting post and is fixedly connected to the connecting post.
[0026] A drive motor is mounted on the fixed base and is fixedly connected to the fixed base.
[0027] Preferably, the shock absorption device includes:
[0028] The fixing plate is provided in multiple ways, and the multiple fixing plates are disposed on the fixing member and fixedly connected to the fixing member;
[0029] Multiple shock-absorbing springs are provided and fixedly connected to the fixed plate.
[0030] A connecting plate is mounted on the shock-absorbing spring and is fixedly connected to the shock-absorbing spring.
[0031] Preferably, the fixed screen plate is made of polyurethane, and the fixed screen plates in the two screening devices have different aperture sizes.
[0032] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0033] 1. This device is equipped with a screening mechanism, which can screen sand and gravel mixtures to separate sand and gravel of various sizes. At the same time, it can quickly screen the mixture during the screening process and prevent sand and gravel from clogging the fixed screen plate, thus ensuring work efficiency.
[0034] 2. This device, by setting up a screening mechanism, and through the shock absorption mechanism in the screening mechanism, can provide a certain degree of protection for the fixed screen plate when it is working, and prevent the fixed screen plate from being damaged too quickly. Attached Figure Description
[0035] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0036] Figure 1 A three-dimensional structural schematic diagram of a sand and gravel screening device for concrete production is shown.
[0037] Figure 2 A front view schematic diagram of a sand and gravel screening device for concrete production is shown.
[0038] Figure 3 A top view schematic diagram of a sand and gravel screening device for concrete production is shown.
[0039] Figure 4 It shows Figure 3 Schematic diagram of the cross-sectional structure of AA.
[0040] Figure 5 An exploded three-dimensional structural diagram of a portion of the screening mechanism in a sand and gravel screening device for concrete production is shown.
[0041] Legend:
[0042] 1. Screen box; 2. Storage box; 3. Support leg; 4. Feed hopper; 5. Discharge channel; 6. Control valve; 7. Fixed screen plate; 8. Fixed seat; 9. Fixing component; 10. Connecting shaft; 11. Rotating component; 12. Connecting column; 13. Pulley; 14. Drive motor; 15. Fixing plate; 16. Shock-absorbing spring; 17. Connecting plate. Detailed Implementation
[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0044] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0045] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0047] Reference Figures 1 to 5 The present invention provides a further description of an embodiment of a sand and gravel screening device for concrete production.
[0048] A sand and gravel screening device for concrete production includes a screen box 1 and a storage box 2, wherein there are two storage boxes 2, and further includes:
[0049] Multiple support legs 3 are provided and fixedly connected to the screen box 1; a feed hopper 4 is provided and fixedly connected to the screen box 1; a discharge channel 5 is provided and fixedly connected to the screen box 1; a control valve 6 is provided and fixedly connected to the discharge channel 5; and two screening mechanisms are provided and fixedly connected to the screen box 1 for screening sand and gravel.
[0050] refer to Figure 1 In a preferred embodiment, the screening mechanism includes: a screening device disposed in the screen box 1 for screening sand and gravel; and a shock-absorbing device disposed in the screen box 1 for further screening of sand and gravel.
[0051] refer to Figure 1 and Figure 2 In a preferred embodiment, the screening device includes: a fixing part disposed inside the screen box 1 for fixing the components; and a driving part disposed on the fixing part for providing power to the screening device.
[0052] refer to Figure 3 and Figure 4 as well as Figure 5 In a preferred embodiment, the fixing part includes: a fixing sieve plate 7, which is disposed inside the sieve box 1 and rotatably connected to the sieve box 1; a fixing seat 8, which is disposed on the sieve box 1 and fixedly connected to the sieve box 1; and a fixing member 9, which is disposed inside the sieve box 1 and fixedly connected to the sieve box 1.
[0053] refer to Figure 5 In a preferred embodiment, the driving unit includes: a connecting shaft 10 disposed within the fixing member 9 and rotatably connected to the fixing member 9; two rotating members 11 disposed on the connecting shaft 10 and fixedly connected to the connecting shaft 10; a connecting column 12 disposed on the rotating member 11 and fixedly connected to the rotating member 11; a pulley 13 disposed on the connecting column 12 and fixedly connected to the connecting column 12; and a drive motor 14 disposed on the fixing seat 8 and fixedly connected to the fixing seat 8.
[0054] refer to Figure 5 In a preferred embodiment, the shock absorption device includes: a plurality of fixing plates 15, which are disposed on the fixing member 9 and fixedly connected to the fixing member 9; a plurality of shock absorption springs 16, which are disposed on the fixing plates 15 and fixedly connected to the fixing plates 15; and a connecting plate 17, which is disposed on the shock absorption springs 16 and fixedly connected to the shock absorption springs 16.
[0055] In this configuration, the fixed screen plate 7 is made of polyurethane, which has good wear resistance, long service life, and low noise. The fixed screen plates 7 in the two screening devices have different aperture sizes, with the fixed screen plate 7 located near the feed hopper 4 having a larger aperture. The pulley 13 is used to drive the connecting column 12 to rotate, and one of the pulleys 13 is fixedly connected to the output end of the drive motor 14. The two pulleys 13 are connected by a belt. The rotating component 11 is triangular in shape and can continuously contact the fixed screen plate 7, causing the fixed screen plate 7 to vibrate. The rotating components 11 on both sides are connected by a rotating shaft.
[0056] This device, by incorporating a screening mechanism, can screen sand and gravel mixtures to separate sand and gravel of various sizes. During the screening process, it can quickly separate the mixture and prevent sand and gravel from clogging the fixed screen plate 7, ensuring work efficiency. Furthermore, the screening mechanism, through its shock-absorbing mechanism, provides protection for the fixed screen plate 7 during operation, preventing premature damage.
[0057] Working principle: When this device is working, the sand and gravel mixture is poured into the screen box 1 through the feed hopper 4. The mixture enters the screen box 1 and comes into contact with the fixed screen plates 7. The two fixed screen plates 7 are driven by the drive motor 14 to drive the pulley 13 to rotate. The pulley 13 then drives the connecting column 12 to rotate. When the connecting column 12 rotates, it drives the rotating component 11 to rotate. The rotating components 11 on both sides are connected by the connecting shaft 10, so that the rotating components 11 on both sides rotate synchronously. When the rotating component 11 rotates, it will continuously contact the fixed screen plates 7, causing the fixed screen plates 7 to rotate in the screen box 1, thereby causing the fixed screen plates 7 to vibrate. The vibration can accelerate the passage of some of the mixture through the fixed screen plates 7. The sand and gravel that cannot pass through the fixed screen plates 7 enter the storage box 2. At the same time, the vibration can also prevent the aperture of the fixed screen plates 7 from being blocked. The vibration can apply force to the blocked mixture, thereby causing the blockage to be removed from the fixed screen plates 7. Furthermore, when the fixed screen plate 7 vibrates, it will continuously impact the connecting plate 17, which in turn applies pressure to the damping spring 16. The damping spring 16 absorbs external force and protects the fixed screen plate 7.
[0058] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A sand and gravel screening device for concrete production, comprising a screen box (1) and a storage box (2), wherein the storage box (2) has two parts, characterized in that, Also includes: Support legs (3) are provided in multiples, and multiple support legs (3) are provided on the screen box (1) and fixedly connected to the screen box (1); A feed hopper (4) is provided on the screen box (1) and is fixedly connected to the screen box (1); The discharge channel (5) is set on the screen box (1) and fixedly connected to the screen box (1); A control valve (6) is installed in the discharge channel (5) and is fixedly connected to the discharge channel (5); The screening mechanism has two parts, and the two screening mechanisms are set in the screen box (1) for screening sand and gravel.
2. The sand and gravel screening device for concrete production according to claim 1, characterized in that, The screening mechanism includes: A screening device is installed inside the screen box (1) for screening sand and gravel; A shock-absorbing device is installed inside the screen box (1) for further screening of sand and gravel.
3. The sand and gravel screening device for concrete production according to claim 2, characterized in that, The screening device includes: A fixing part is provided inside the sieve box (1) for fixing the component; A drive unit, disposed on the fixed unit, is used to provide power to the screening device.
4. The sand and gravel screening device for concrete production according to claim 3, characterized in that, The fixing part includes: A fixed sieve plate (7) is set inside the sieve box (1) and is rotatably connected to the sieve box (1); A fixed base (8) is provided on the sieve box (1) and is fixedly connected to the sieve box (1); The fixing member (9) is set inside the sieve box (1) and is fixedly connected to the sieve box (1).
5. A sand and gravel screening device for concrete production according to claim 4, characterized in that, The drive unit includes: A connecting shaft (10) is disposed within the fixing member (9) and is rotatably connected to the fixing member (9); Two rotating parts (11) are provided, and the two rotating parts (11) are disposed on the connecting shaft (10) and fixedly connected to the connecting shaft (10); A connecting column (12) is disposed on the rotating part (11) and fixedly connected to the rotating part (11); A pulley (13) is disposed on the connecting post (12) and is fixedly connected to the connecting post (12); A drive motor (14) is mounted on the fixed base (8) and is fixedly connected to the fixed base (8).
6. A sand and gravel screening device for concrete production according to claim 5, characterized in that, The shock absorption device includes: The fixing plate (15) is multiple, and the multiple fixing plates (15) are disposed on the fixing member (9) and fixedly connected to the fixing member (9); Multiple shock-absorbing springs (16) are provided on the fixed plate (15) and are fixedly connected to the fixed plate (15); A connecting plate (17) is disposed on the shock-absorbing spring (16) and is fixedly connected to the shock-absorbing spring (16).
7. A sand and gravel screening device for concrete production according to claim 6, characterized in that, The fixed sieve plate (7) is made of polyurethane, and the aperture size of the fixed sieve plate (7) in the two screening devices is different.