A gravel sampling screen

Abstract

The utility model discloses a kind of gravel spot check screens, including screen frame, screen and weighing mechanism, the screen is provided with multiple, multiple screen is spaced distribution with screen frame on, and all with screen frame detachable connection, the mesh number and aperture in multiple screen are not all same;The weighing mechanism is installed on screen frame, for weighing and display the weight of screening material.Screen is provided with multiple, can select corresponding screen and quantity according to needs, the material on screen can be heavy by setting weighing mechanism on screen frame, so as to obtain the weight of initial material and the weight of material after screening, therefore, the utility model has the characteristics of multiple functions, convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of construction auxiliary instrument technology, and more specifically, it relates to a crushed stone sampling sieve. Background Technology

[0002] Aggregates used in highway construction must meet design requirements to ensure the durability and safety of the highway structure. Sand and crushed stone are used in large quantities in highway construction and are key materials tested in highway engineering aggregate testing regulations. Core testing items include sieve analysis of basic physical properties, requiring the use of sieves to check whether values ​​such as mud content, mud lump content, crushing value of crushed stone, and maximum particle size of sand and crushed stone meet standards. However, traditional sieves used for testing are only differentiated by sieve hole shape and mesh size, resulting in limited application and relatively simple functions. Multiple sieves are often required for testing, causing inconvenience. Therefore, there is an urgent need for a multi-functional testing sieve with a wide range of applications. Utility Model Content

[0003] The purpose of this invention is to provide a crushed stone sampling sieve to solve the above-mentioned problems.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A crushed stone sampling sieve includes a sieve frame, a sieve mesh, and a weighing mechanism. Multiple sieve meshes are provided, and the multiple sieve meshes are distributed vertically and vertically on the sieve frame, and are detachably connected to the sieve frame. The mesh count and aperture of the multiple sieve meshes are different.

[0006] The weighing mechanism is installed on the sieve frame and is used to weigh and display the weight of the sieved material.

[0007] Preferably, the weighing mechanism includes a display panel, a power supply, and a gravity sensing component. The gravity sensing component is installed at the bottom of the screen frame, and the display panel is embedded in one side of the screen frame. Both the display panel and the gravity sensing component are electrically connected to the power supply, and the display panel is electrically connected to the gravity sensing component.

[0008] Preferably, multiple gravity sensing components are provided and are evenly distributed around the perimeter of the sieve frame, and the value on the display panel is the average of the values ​​transmitted by the multiple gravity sensing components.

[0009] Preferably, the gravity sensing component includes a pressure sensor and a telescopic transmission rod, the telescopic transmission rod being connected to the screen frame, and its top end contacting the pressure sensor after being squeezed.

[0010] Preferably, the top of the sieve frame is connected to a detachable cover plate, which is made of a transparent material.

[0011] Preferably, the bottom of the sieve frame is connected to a detachable base plate.

[0012] Preferably, the screen frame has an opening on one side for the screen to be pulled out, and the screen frame has a gate plate for sealing the opening at the top or bottom of the corresponding opening.

[0013] The beneficial effects of this utility model are: multiple screens are provided, and the appropriate screens and quantities can be selected as needed; a weighing mechanism is provided on the screen frame to weigh the material placed on the screen, thereby obtaining the initial weight of the material and the weight of the material after screening. Therefore, this utility model has the characteristics of multiple functions and convenient operation. Attached Figure Description

[0014] Figure 1 This is an assembly drawing of a crushed stone sampling box;

[0015] Figure 2 An exploded view of the gravel sampling box;

[0016] Figure 3 This is a schematic diagram of a gravity sensing component;

[0017] In the diagram: 1. Screen frame; 2. Screen mesh; 3. Weighing mechanism; 31. Display panel; 32. Gravity sensing component; 321. Pressure sensor; 322. Telescopic transmission rod; 4. Cover plate; 5. Base plate; 6. Gate. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0021] according to Figure 1-3As shown, a crushed stone sampling sieve includes a sieve frame 1, a sieve screen 2, and a weighing mechanism 3. Multiple sieve screens 2 are provided, and the multiple sieve screens 2 are distributed vertically and horizontally on the sieve frame 1, and are all detachably connected to the sieve frame 1. The mesh number and aperture of the multiple sieve screens 2 are different. The weighing mechanism 3 is installed on the sieve frame 1 and is used to weigh and display the weight of the material to be screened.

[0022] according to Figure 1-3 As shown, the weighing mechanism 3 includes a display panel 31, a power supply, and gravity sensing components 32. The gravity sensing components 32 are installed at the bottom of the screen frame 1, and the display panel 31 is embedded in one side of the screen frame 1. Both the display panel 31 and the gravity sensing components 32 are electrically connected to the power supply, and the display panel 31 is also electrically connected to the gravity sensing components 32. Four gravity sensing components 32 are provided and are evenly distributed around the perimeter of the screen frame 1. The value on the display panel 31 is the average of the values ​​transmitted by the multiple gravity sensing components 32. When the screen frame 1 is suspended in the air, the display panel 31 will not display the gravity value. When testing materials, the screen frame 1 with the screen 2 installed should be placed on the ground or operating table first to obtain the weight value a before weighing. Then, the material is placed on the screen 2 and weighed again to obtain the weight value b. The weight of the material is ba. Shake the screen frame 1 to remove mud or small-diameter materials and make a final weighing. The weighing value is c. At this time, the weight of the remaining material is ca, and the weight of the material that was screened out is bac. Thus, the test value of the material is obtained.

[0023] according to Figure 1-3 As shown, the gravity sensing assembly 32 includes a pressure sensor 321 and a telescopic transmission rod 322. The telescopic transmission rod 322 is connected to the screen frame 1, and its top end contacts the pressure sensor 321 after being compressed. The telescopic transmission rod 322 includes an outer tube and an upper contact rod, a lower contact rod, a first compression spring, and a second compression spring installed in the outer tube. The first compression spring is installed between the upper contact rod and the lower contact rod, and the second compression spring is sleeved on the upper contact rod to create a gap between the upper contact rod and the pressure sensor 321 when no external force is applied. In addition, the outer tube is composed of two semi-circular tubes spliced ​​together.

[0024] according to Figure 1-3 As shown, a detachable cover plate 4 is connected to the top of the sieve frame 1, and a detachable base plate 5 is connected to the bottom of the sieve frame 1. The cover plate 4 is designed to prevent dust from being generated when the sieve frame 1 is shaken, and it works with the base plate 5 to support the material and prevent changes in the material's moisture content from affecting the test values. The cover plate 4 is made of transparent material, making it easy to observe the state of the material in the sieve frame 1.

[0025] according to Figure 1-3As shown, an opening for the screen 2 to be pulled out is provided on one side of the screen frame 1. A gate 6 for sealing the opening is slidably connected to the top or bottom of the corresponding opening of the screen frame 1. In this application, the gate 6 is preferably set at the top of the corresponding opening. The gate 6 closes the opening under its own weight. The screen frame 1 swings back and forth, left and right, or rotates circumferentially to prevent the gate 6 from jumping up. In addition, when the gate 6 is set at the bottom of the corresponding opening, friction is generated between the gate 6 and the side wall of the screen frame 1, and the friction is greater than the weight of the gate 6.

[0026] according to Figure 1-3 As shown, multiple screens 2 are provided, and the appropriate screens 2 and quantity can be selected as needed. A weighing mechanism 3 is provided on the screen frame 1 to weigh the material placed on the screens 2, thereby obtaining the initial weight of the material and the weight of the material after screening. Therefore, this utility model has the characteristics of multiple functions and convenient operation.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A crushed stone sampling sieve, characterized in that: It includes a sieve frame (1), a sieve mesh (2) and a weighing mechanism (3). Multiple sieve meshes (2) are provided, and the multiple sieve meshes (2) are distributed vertically and vertically on the sieve frame (1), and are detachably connected to the sieve frame (1). The mesh count and aperture of the multiple sieve meshes (2) are different. The weighing mechanism (3) is installed on the sieve frame (1) and is used to weigh and display the weight of the sieved material.

2. The crushed stone sampling sieve according to claim 1, characterized in that: The weighing mechanism (3) includes a display panel (31), a power supply and a gravity sensing component (32). The gravity sensing component (32) is installed at the bottom of the sieve frame (1). The display panel (31) is embedded on one side of the sieve frame (1). Both the display panel (31) and the gravity sensing component (32) are electrically connected to the power supply. The display panel (31) is electrically connected to the gravity sensing component (32).

3. The crushed stone sampling sieve according to claim 2, characterized in that: Multiple gravity sensing components (32) are provided and are distributed at equal intervals around the screen frame (1). The value on the display panel (31) is the average of the values ​​transmitted by the multiple gravity sensing components (32).

4. The crushed stone sampling sieve according to claim 3, characterized in that: The gravity sensing component (32) includes a pressure sensor (321) and a telescopic transmission rod (322). The telescopic transmission rod (322) is connected to the screen frame (1), and its top end contacts the pressure sensor (321) after being squeezed.

5. The crushed stone sampling sieve according to claim 4, characterized in that: The top of the sieve frame (1) is connected to a detachable cover plate (4), which is made of transparent material.

6. The crushed stone sampling sieve according to claim 5, characterized in that: The bottom of the sieve frame (1) is connected to a detachable base plate (5).

7. The crushed stone sampling sieve according to claim 6, characterized in that: The sieve frame (1) has an opening on one side for the sieve mesh (2) to be pulled out, and the sieve frame (1) has a gate (6) for sealing the opening at the top or bottom of the corresponding opening.

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