Hand screening auxiliary tool for screening gravel aggregate
By designing a screening auxiliary tool that includes a fixed frame, a rotating rod, a collection hopper, and a collection tray, the problems of laborious hand-cranked sieves and dust spillage were solved, achieving time-saving, labor-saving, and improved accuracy in sand and gravel quality testing.
Patent Information
- Application Number
- CN202422929025.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Hand-cranking a sieve is laborious and inconvenient, and dust and material spillage during the hand-sieving process affect the accuracy of the test.
Design a screening auxiliary tool that includes a fixed frame, a rotating rod, a receiving hopper, a receiving tray, and an electronic scale. The rotating rod moves the sieve back and forth, reducing manual shaking. The receiving hopper and receiving tray collect the screened material, and the electronic scale and stopwatch record the time and weight.
It saves time and effort, reduces dust and material spillage, and improves the accuracy and efficiency of sand and gravel quality testing.
Smart Images
Figure CN223669619U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ordinary concrete sand and stone quality detection technical field, especially sand and stone aggregate screening hand screening auxiliary tool. BACKGROUND
[0002] In the production process of ordinary concrete, the sand and stone aggregate used is usually subjected to screening test and detection to verify the quality of the sand and stone aggregate for ordinary concrete. According to the requirements of relevant standards such as "Standard for Quality and Detection Method of Sand and Stone for Ordinary Concrete" (JGJ 52-2006), further hand screening is required after the machine screening process is completed in the sand and stone aggregate screening analysis, crushing value and needle flake particle content tests to ensure that the throughput per minute meets the specification requirements and the test data is accurate. Currently, a hand-operated sieve is usually used for sand and stone screening during the hand screening process. When there is a large amount of material, it is very laborious to use the hand-operated sieve, causing inconvenience in the test. Meanwhile, a large amount of dust and material is scattered during the sand and stone screening, affecting the accuracy of the test. SUMMARY
[0003] The utility model aims to provide a sand and stone aggregate screening hand screening auxiliary tool to save time and labor, reduce dust generation and material scattering and improve the accuracy of sand and stone quality detection.
[0004] The sand and stone aggregate screening hand screening auxiliary tool provided by the utility model comprises a fixed frame, a material collecting hopper is arranged at the lower end of the fixed frame, rotating rods are arranged at the two sides of the fixed frame through fixing holes, limit blocks are arranged at the two ends of the fixed frame and the height of the limit blocks is higher than the height of the rotating rods; a supporting frame is arranged at the bottom of the material collecting hopper; a material collecting disc is arranged in the supporting frame and the bottom of the material collecting disc is correspondingly arranged with the bottom of the material collecting hopper.
[0005] Further, a base is arranged at the bottom of the supporting frame; an electronic scale is arranged in the base and the bottom of the material collecting disc is placed on the electronic scale; a reading window is arranged on the base and the reading window is correspondingly arranged with the display screen of the electronic scale.
[0006] Further, material collecting clamping edges are arranged around the material collecting disc and the material collecting disc is connected with the inner wall of the material collecting hopper in contact through the material collecting clamping edges.
[0007] Further, an electronic stopwatch is arranged at the outside of the fixed frame.
[0008] Further, the number of the rotating rods is 2-10 and the 2-10 rotating rods are uniformly arranged on the fixed frame.
[0009] Compared with the prior art, the sand and stone aggregate screening hand screening auxiliary tool provided by the utility model has the following beneficial effects:
[0010] 1. The utility model discloses a rotating rod back and forth moves the sieve, does not need to shake the sieve with both hands, reduces the physical consumption in the process of shaking the sieve, saves time and energy.
[0011] 2. The utility model discloses a collecting hopper collects the sand screened to the collecting tray, can effectively reduce the dust generated in the process of screening, prevents the material from spilling in the process of screening, improves the accuracy of test. Meanwhile, improve the working environment, guarantee the health of test personnel.
[0012] Therefore, the utility model has the positive effect of saving time and energy, reducing the generation of dust and the spilling of material, and improving the accuracy of gravel quality detection. BRIEF DESCRIPTION OF DRAWINGS
[0013] The drawings disclose the specific embodiments of the utility model, wherein,
[0014] Figure 1 It is the structure schematic diagram of the utility model;
[0015] Figure 2 It is the structure schematic diagram of the collecting tray of the utility model;
[0016] Figure 3 It is the use process diagram of the utility model;
[0017] Reference signs:
[0018] 1. Fixed frame;11, rotating rod;12, limit block;13, electronic stopwatch;
[0019] 2. Collecting hopper;21, support frame;
[0020] 3. Collecting tray;31, collecting card edge;
[0021] 4. Base;41, reading window;
[0022] 5. Sieve. DETAILED DESCRIPTION
[0023] As Figures 1-2 The sand and gravel aggregate screening hand sieve auxiliary tool provided by the utility model, including fixed frame 1, the lower end of fixed frame 1 is provided with collecting hopper 2, the both sides of fixed frame 1 are provided with rotating rod 11 through fixed hole, the both ends of fixed frame 1 are provided with limit block 12, and the height of limit block 12 is higher than the height of rotating rod 11;The bottom of collecting hopper 2 is provided with support frame 21;Support frame 21 is provided with collecting tray 3 in, and collecting tray 3 and the bottom of collecting hopper 2 are correspondingly provided.
[0024] As Figure 3As shown, the utility model discloses in use, first, the sieve 5 is placed in the rotating rod 11 of fixed frame 1. Then, the sieve 5 is moved back and forth on the rotating rod 11 by hand, and the limit block 12 can prevent the sieve 5 from moving back and forth beyond the two ends of the fixed frame 1. The screened sand falls into the receiving tray 3 through the receiving hopper 2. Finally, the weight of the sand in the receiving tray 3 is weighed, and the sand aggregate screening is completed.
[0025] The bottom of the support frame 21 is provided with a base 4, and an electronic scale is arranged in the base 4, and the bottom of the receiving tray 3 is placed on the electronic scale. A reading window 41 is arranged on the base 4, and the reading window 41 is correspondingly arranged with the display screen of the electronic scale. When the screened sand falls into the receiving tray 3 through the receiving hopper 2, the weight of the sand can be directly weighed by the electronic scale. The reading window 41 facilitates direct reading of the weighing value of the electronic scale.
[0026] The periphery of the receiving tray 3 is provided with a receiving card edge 31, and the receiving tray 3 is connected with the inner wall of the receiving hopper 2 through the receiving card edge 31. The receiving card edge 31 can make the screened sand of the sieve 5 fall into the receiving tray 3, avoid the screened sand falling into the support frame 21, reduce the spilling of the material, and improve the accuracy of the quality detection of the sand and stone.
[0027] The outer side of the fixed frame 1 is provided with an electronic stopwatch 13. The electronic stopwatch 13 is pasted on the outer side of the fixed frame 1 through double-sided adhesive tape, and the electronic stopwatch 13 can time and record the screening time of the sand and stone aggregate, which is convenient to use.
[0028] The number of the rotating rods 11 is 2-10, and the 2-10 rotating rods 11 are evenly arranged on the fixed frame 1. The rotating rod 11 can make the sieve 5 move back and forth above the receiving hopper 2 for screening the sand and stone aggregate, without the need of shaking the sieve with both hands, saving time and effort.
[0029] The mounting mode, connection mode or setting mode of all the components are common mechanical modes, such as welding, threaded connection, screw connection, etc., and the specific structure, model and coefficient index of all the components are self-owned technology, as long as the beneficial effects can be achieved. The electronic stopwatch 13 and the electronic scale used above are common devices on the market, and when bought and used, they only need to be connected according to the instruction manual purchased together, so the description is not repeated here.
[0030] The technical scheme of the utility model is not limited to the scope of the embodiments of the utility model, and the technical content not described in detail in the utility model is known technology.
Claims
1. A hand sieving aid for screening sand and gravel aggregates, including a fixed frame (1), characterized in that, The lower end of the fixed frame (1) is provided with a receiving hopper (2), and the two sides of the fixed frame (1) are provided with rotating rods (11) through fixing holes. The two ends of the fixed frame (1) are provided with limit blocks (12), and the height of the limit blocks (12) is higher than the height of the rotating rods (11). The bottom of the receiving hopper (2) is provided with a support frame (21). The support frame (21) is provided with a receiving tray (3), and the receiving tray (3) is correspondingly provided with the bottom of the receiving hopper (2).
2. The hand sieving auxiliary tool for screening sand and gravel aggregates according to claim 1, characterized in that, The support frame (21) has a base (4) at its bottom; an electronic scale is installed inside the base (4), and the bottom of the receiving tray (3) is placed on the electronic scale; a reading window (41) is installed on the base (4), and the reading window (41) is correspondingly set with the display screen of the electronic scale.
3. The hand sieving auxiliary tool for screening sand and gravel aggregates according to claim 1, characterized in that, The receiving tray (3) is provided with receiving edge (31) around its perimeter, and the receiving tray (3) is connected to the inner wall of the receiving hopper (2) through the receiving edge (31).
4. The hand sieving auxiliary tool for screening sand and gravel aggregates according to claim 1, characterized in that, An electronic stopwatch (13) is provided on the outside of the fixed frame (1).
5. The hand sieving auxiliary tool for screening sand and gravel aggregates according to claim 1, characterized in that, The number of rotating rods (11) is 2-10, and the 2-10 rotating rods (11) are evenly arranged on the fixed frame (1).