Coarse aggregate mesh basket method measuring device

Abstract

The utility model discloses a mesh basket method measuring device for coarse aggregate. The mesh basket method measuring device comprises a water circulation constant temperature device, an overflow water tank, a balance support, a hydrostatic balance and a mesh basket, a first water inlet and a first water outlet are formed in the water circulation constant temperature device; a partition plate is arranged in the overflow water tank, the top of the partition plate is lower than the outer wall of the overflow water tank, and the partition plate divides the interior of the overflow water tank into a working area and an overflow area. A second water inlet and a second water outlet are formed in the outer wall of the working area, the first water inlet is connected with the second water outlet through a pipeline, and the first water outlet is connected with the second water inlet through a pipeline; the overflow water tank is arranged in the balance bracket; the hydrostatic balance is arranged at the top of the balance bracket and is arranged above the overflow water tank; coarse aggregate is placed in the mesh basket, and the mesh basket is hung in the middle of the hydrostatic balance and placed in a working area of the overflow water tank; the water circulation constant temperature device is adopted to ensure that the water temperature is always kept constant in the measurement process, and the accuracy of the measurement result of the apparent density of the coarse aggregate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of test detection of the apparent density of coarse aggregates in highway engineering, and particularly relates to a measuring device for the basket method of coarse aggregates. Background Technique

[0002] According to the relevant regulations of the current technical standard JTG / T 3650-2020 for highway engineering, the apparent density of coarse aggregates is one of the important bases for judging whether the coarse aggregates are qualified. The test method for the apparent density of coarse aggregates generally follows JTG 3432-2024, and this method standard puts forward more specific new requirements for test equipment. However, the existing measuring devices for coarse aggregates have insufficient measurement accuracy because they cannot keep the water temperature constant.

[0003] Therefore, it is necessary to develop a measuring device for the basket method of coarse aggregates to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to design a measuring device for the basket method of coarse aggregates to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A measuring device for the basket method of coarse aggregates, comprising:

[0007] A water circulation constant temperature device; a first water inlet and a first water outlet are arranged on the water circulation constant temperature device;

[0008] An overflow water tank; a partition is arranged in the overflow water tank, the top of the partition is lower than the outer wall height of the overflow water tank, and the partition divides the inside of the overflow water tank into a working area and an overflow area; a second water inlet and a second water outlet are arranged on the outer wall of the working area, the first water inlet is connected to the second water outlet through a pipeline, the first water outlet is connected to the second water inlet through a pipeline, and a third water outlet is arranged on the outside of the overflow area;

[0009] A balance support; the overflow water tank is placed inside the balance support;

[0010] A hydrostatic balance; the hydrostatic balance is installed on the top of the balance support and is placed above the overflow water tank;

[0011] A basket; the coarse aggregates are placed in the basket, and the basket is hoisted in the middle of the hydrostatic balance and placed in the working area of the overflow water tank.

[0012] The beneficial effects of the utility model are as follows:

[0013] In this application, a water circulation constant temperature device is adopted to ensure that the water temperature remains constant during the measurement process, improving the accuracy of the measurement result of the apparent density of coarse aggregates. Description of the Drawings

[0014] Figure 1 Schematic diagram of the connection structure between the water circulation constant temperature device and the overflow water tank in this application;

[0015] Figure 2 Schematic diagram of the structure of the balance support in this application;

[0016] Figure 3 Schematic diagram of the structure of the hydrostatic balance in this application.

[0017] In the figure: 1 - water circulation constant temperature device; 2 - first water inlet; 3 - first water outlet; 4 - overflow water tank; 5 - second water outlet; 6 - second water inlet; 7 - third water outlet; 8 - partition; 9 - hydrostatic balance; 10 - balance fulcrum; 11 - screw hole; 12 - fixed frame; 13 - connecting rod. Detailed implementation manners

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the protection scope of the present utility model.

[0020] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of this utility model is usually placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] In addition, terms such as "first" and "second" are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0023] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, terms such as "arrangement" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] The following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings.

[0025] As Figures 1-3 shown, a measuring device for coarse aggregate basket method includes:

[0026] A water circulation constant temperature device 1 (preferably the T1 constant temperature machine produced by Ledi Star Technology Co., Ltd., Yannan High-tech Zone, Yancheng City); a first water inlet 2 and a first water outlet 3 are arranged on the water circulation constant temperature device 1;

[0027] An overflow water tank 4; a partition 8 is arranged in the overflow water tank 4, the top of the partition 8 is set to be lower than the outer wall height of the overflow water tank 4, and the partition 8 divides the inside of the overflow water tank 4 into a working area and an overflow area; a second water inlet 6 and a second water outlet 5 are arranged on the outer wall of the working area, the first water inlet 2 is connected to the second water outlet 5 through a pipeline, the first water outlet 3 is connected to the second water inlet 6 through a pipeline, and a third water outlet 7 is arranged on the outside of the overflow area;

[0028] A balance support; the overflow water tank 4 is placed inside the balance support;

[0029] A hydrostatic balance 9; the hydrostatic balance 9 is installed on the top of the balance support and placed above the overflow water tank 4;

[0030] A basket; the coarse aggregate is placed in the basket, and the basket is hoisted in the middle of the hydrostatic balance 9 and placed in the working area of the overflow water tank 4.

[0031] As Figures 2-3 shown, in some embodiments, the balance support includes a fixed frame 12 and four connecting rods 13. Four mounting grooves are arranged at the four corners of the fixed frame 12, four screw holes 11 are arranged at the four corners of the hydrostatic balance 9, external threads are arranged at the tops of the four connecting rods 13, the tops of the four connecting rods 13 are respectively threadedly connected to the four screw holes 11 of the hydrostatic balance 9, and the bottoms of the four connecting rods 13 are respectively placed in the four mounting grooves of the fixed frame 12.

[0032] As Figure 3As shown, in some embodiments, the hydrostatic balance 9 is formed into an X-shaped structure. Four balance fulcrums 10 are provided in the middle of the hydrostatic balance 9. The four balance fulcrums 10 enclose a rectangle. The four main ropes of the wire basket are respectively connected to the four balance fulcrums 10. The four balance fulcrums 10 can be selected as four mounting holes, and the four main ropes are respectively tied to the four mounting holes.

[0033] In some embodiments, the main body shape of the water circulation constant temperature device 1 is not limited. Its volume is 36L, and it has the functions of water circulation and temperature rise and fall. It can keep the temperature of 36L of room temperature water constant at 23 ± 2°C. The interface ends of the first water inlet 2 and the first water outlet 3 are Φ8mm tower-type interfaces.

[0034] The overflow water tank is made of 5mm thick acrylic board, with a length and width of 350mm * 450mm and a height of 320mm. A partition 8 is provided in the water tank at a position about 100mm away from one end along the length direction. The height of the partition 8 is 300mm, which is used to control the water level height.

[0035] The hydrostatic balance 9 is made of metal material, which is convenient for taking out and putting in the wire basket.

[0036] The wire basket is made of rust-resistant material, with a height of 150mm, a diameter of 200mm, and a pore diameter not greater than 1.18mm.

[0037] When measuring, after treating the coarse aggregate material according to the specification requirements, turn on the main machine of the water circulation constant temperature device 1 to make the water temperature in the overflow water tank 4 constant at 23 ± 2°C. Place the hydrostatic balance 9 on the water tank, hang the wire basket, and make the wire basket located at the center position in the working area, and then measure the apparent density.

[0038] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A measuring device for the basket method of coarse aggregate, characterized in that Comprising: A water circulation constant temperature device; The water circulation constant temperature device is provided with a first water inlet and a first water outlet; An overflow water tank; a partition is arranged in the overflow water tank, the top of the partition is set to be lower than the outer wall height of the overflow water tank, and the partition divides the inside of the overflow water tank into a working area and an overflow area; a second water inlet and a second water outlet are arranged on the outer wall of the working area, the first water inlet is connected to the second water outlet through a pipeline, the first water outlet is connected to the second water inlet through a pipeline, and a third water outlet is arranged on the outside of the overflow area; A fixing bracket; the overflow water tank is placed inside the fixing bracket; A hydrostatic balance; the hydrostatic balance is installed on the top of the fixing bracket and is placed above the overflow water tank; A wire basket; coarse aggregates are placed in the wire basket, and the wire basket is hoisted in the middle of the hydrostatic balance and placed in the working area of the overflow water tank.

2. The measuring device for coarse aggregate basket method according to claim 1, characterized in that, The fixing bracket includes a fixing frame and four connecting rods. Four mounting grooves are arranged at the four corners of the fixing frame, four screw holes are arranged at the four corners of the hydrostatic balance, external threads are arranged at the tops of the connecting rods, the tops of the four connecting rods are respectively threadedly connected to the four screw holes of the hydrostatic balance, and the bottoms of the four connecting rods are respectively placed in the four mounting grooves of the fixing frame.

3. The measuring device for coarse aggregate basket method according to claim 2, characterized in that, The hydrostatic balance is formed into an X-shaped structure.

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