A device for detecting the bulk density of a building sand

Abstract

The utility model provides a kind of construction sand material bulk density detection device, including base, the top of base is provided with weigher, the top of weigher is placed with measuring cylinder, support assembly for keeping the stable work of weigher is arranged between weigher and base, the top of weigher is provided with the connecting assembly for keeping the stable of measuring cylinder;The top of base is provided with the rotation and beating assembly for allowing measuring cylinder to rotate and can be knocked to measuring cylinder to make sand material keep compact, the support assembly includes annular frame fixedly connected to the upper surface of base, the inner wall of annular frame is slidably connected with annularly arranged support block. Through the rotation and beating assembly set, measuring cylinder can be rotated, and the rotating measuring cylinder can be knocked, which can effectively destroy the bridge structure between sand material particles, so that the sand material inside measuring cylinder can reach the compact state, thereby ensuring the accuracy of sand material density value detection.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a device for detecting the bulk density of building sand. Background Technology

[0002] As the core aggregate of key materials such as concrete and masonry mortar in construction projects, sand's bulk density directly affects structural safety and construction quality. Precise density testing must be carried out before use: on the one hand, the bulk density of sand determines the amount of cement paste in the concrete mix proportion; on the other hand, the sand density of masonry mortar affects the workability and water retention of the mortar.

[0003] Patent application number 202220707437.9 discloses a sand bulk density meter for testing concrete performance, including a support frame and a bearing plate. A pressure weighing sensor is installed on the top of the support frame, and the bearing plate is installed on the top of the pressure weighing sensor. A measuring tank is installed on the top of the bearing plate. An extension plate is installed on one side of the support frame, and a ventilation fan is installed through one side of the extension plate. This invention, with its support frame, extension plate, and ventilation fan, allows electrical energy to be supplied to the ventilation fan via a control panel. The ventilation fan generates suction on the back of the extension plate and blows the air to the top of the bearing plate, cleaning dust and sand particles from the top of the bearing plate. This prevents dust and excess sand from affecting the weighing data and improves the accuracy of the device.

[0004] The above-mentioned solution has shortcomings in use. When the sand enters the metering tank, due to the irregular packing shape and particle size distribution differences between the particles, a large gap space will be formed in the fixed volume, which will lead to a large error in the weight and volume of the sand in the container, and thus further affect the detection of its density. To this end, we provide a device for detecting the bulk density of building sand. Utility Model Content

[0005] This utility model provides a device for detecting the bulk density of building sand, in order to solve the technical problems existing in the background art.

[0006] The purpose and effect of this utility model of a building sand bulk density testing device are achieved by the following specific technical means: a building sand bulk density testing device includes a base, a weighing device is arranged on the top of the base, a measuring cylinder is placed on the top of the weighing device, a support component for keeping the weighing device stable is arranged between the weighing device and the base, and a connection component for keeping the measuring cylinder stable is arranged on the top of the weighing device.

[0007] A rotating striking assembly is provided above the base to rotate the measuring cylinder and strike it to keep the sand compacted.

[0008] Preferably, the support assembly includes an annular frame fixedly connected to the upper surface of the base, and the inner wall of the annular frame is slidably connected with a ring of support blocks, the top of each support block being connected to the bottom surface of the weighing device.

[0009] Preferably, the connecting assembly includes an annular cylinder fixedly connected to the upper surface of the weighing device. The inner wall of the annular cylinder has slots arranged in a ring. Each slot has a insert bar inserted inside, and one side of each insert bar is connected to the outer surface of the weighing cylinder.

[0010] Preferably, the rotating striking assembly includes a motor mounted on the upper surface of the base, a rotating rod fixedly connected to the output end of the motor, a toothed ring fixedly connected to the upper surface of the rotating rod, a toothed disc meshing with the outside of the toothed ring, and the bottom surface of the toothed disc connected to the upper surface of the weighing device.

[0011] Preferably, a rotating plate is fixedly connected to the top of the rotating rod, and a striking plate is rotatably connected to the inner wall of the rotating plate.

[0012] Preferably, a protective pad is fixedly connected to the outer surface of each impact plate, and each protective pad is made of sponge material.

[0013] Preferably, a protective shell is rotatably connected to the outer surface of the rotating rod, and the bottom surface of the protective shell is connected to the upper surface of the base.

[0014] Preferably, a display screen is mounted on the upper surface of the base, and the display screen is connected to the weighing device via a cable.

[0015] Beneficial effects:

[0016] The rotating impact component allows the measuring cylinder to rotate and strike, effectively disrupting the bridging structure between sand particles and making the sand inside the measuring cylinder dense, thus ensuring the accuracy of sand density detection.

[0017] The combination of the ring frame and the support block can support the weighing instrument, thereby enabling it to rotate smoothly. The combination of the ring cylinder, slot and insert can stabilize the weighing instrument, effectively preventing the weighing instrument from tilting or loosening due to vibration, and ensuring the stability and repeatability of the testing process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0019] Figure 2 This is a three-dimensional structural diagram of the annular frame of this utility model.

[0020] Figure 3 This is a three-dimensional structural schematic diagram of the protective shell of this utility model, shown in a cross-sectional view.

[0021] Figure 4 This is a three-dimensional structural diagram of the annular cylinder of this utility model.

[0022] Figure 1-4 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 1. Base; 2. Weighing device; 3. Measuring cylinder; 4. Support assembly; 401. Annular frame; 402. Support block; 5. Rotary striking assembly; 501. Motor; 502. Rotating rod; 503. Gear ring; 504. Gear disc; 505. Rotating plate; 506. Striking plate; 507. Protective pad; 508. Protective shell; 6. Connecting assembly; 601. Annular cylinder; 602. Slot; 603. Insert. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] As attached Figure 1 As shown: A bulk density testing device for building sand includes a base 1, a weighing device 2 is arranged on the top of the base 1, a measuring cylinder 3 is placed on the top of the weighing device 2, a display screen is installed on the upper surface of the base 1, and the display screen is connected to the weighing device 2 through a cable. The measuring cylinder 3 can be used to hold sand, and the weighing device 2 can weigh the sand inside the measuring cylinder 3. The weighing data can be displayed on the display screen.

[0026] As attached Figure 1 and Figure 2 As shown: A support assembly 4 is provided between the weighing device 2 and the base 1 to keep the weighing device 2 working stably. The support assembly 4 includes an annular frame 401 fixedly connected to the upper surface of the base 1. The inner wall of the annular frame 401 is slidably connected to a ring of support blocks 402. The top of each support block 402 is connected to the bottom surface of the weighing device 2. By using the cooperation between the support blocks 402 and the annular frame 401, the weighing device 2 can be supported to keep it stable, and at the same time, it is convenient to rotate the measuring cylinder 3 later.

[0027] As attached Figure 1 and Figure 4As shown: A connecting component 6 for stabilizing the measuring cylinder 3 is provided above the weighing device 2. The connecting component 6 includes an annular cylinder 601 fixedly connected to the upper surface of the weighing device 2. The inner wall of the annular cylinder 601 has annularly arranged slots 602. Each slot 602 has a strip 603 inserted inside. One side of each strip 603 is connected to the outer surface of the measuring cylinder 3. By using the cooperation between the strip 603 and the slot 602, the measuring cylinder 3 can be stabilized on the weighing device 2, which can prevent the measuring cylinder 3 from tipping over and ensure the stability of the sand inside the measuring cylinder 3.

[0028] As attached Figure 1 and Figure 3 As shown: A rotating striking assembly 5 is provided above the base 1 to rotate the measuring cylinder 3 and strike it to keep the sand compacted. The rotating striking assembly 5 includes a motor 501 mounted on the upper surface of the base 1. A rotating rod 502 is fixedly connected to the output end of the motor 501. A gear ring 503 is fixedly connected to the upper surface of the rotating rod 502. A gear disc 504 meshes with the outside of the gear ring 503. The bottom surface of the gear disc 504 is connected to the upper surface of the weighing device 2. When the motor 501 is working, the rotating rod 502 will rotate. Through the gear meshing of the gear ring 503 and the gear disc 504, the weighing device 2 drives the measuring cylinder 3 to rotate. A protective shell 508 is rotatably connected to the outer surface of the rotating rod 502. The bottom surface of the protective shell 508 is connected to the upper surface of the base 1. The protective shell 508 can protect the motor 501 and ensure that the motor 501 works normally.

[0029] As attached Figure 3 As shown: A rotating plate 505 is fixedly connected to the top of the rotating rod 502. A striking plate 506 is rotatably connected to the inner wall of the rotating plate 505. When the rotating rod 502 rotates, it will drive the striking plate 506 to rotate synchronously. The striking plate 506 will periodically hammer the outer wall of the metering cylinder 3, so that the metering cylinder 3 is vibrated while rotating. This dual force can further improve the compaction of the sand. A protective pad 507 is fixedly connected to the outer surface of each striking plate 506. Each protective pad 507 is made of sponge material. The protective pad 507 can protect the metering cylinder 3 to prevent damage to the metering cylinder 3 caused by long-term impact.

[0030] Working principle: First, the sand is loaded into the measuring cylinder 3. Then, the motor 501 is started to drive the rotating rod 502 to rotate. Through the gear meshing of the gear ring 503 and the gear plate 504, the weighing device 2 drives the measuring cylinder 3 to rotate. At the same time, the rotating rod 502 drives the top rotating plate 505 to rotate synchronously. The striking plate 506 on the rotating plate 505 will periodically hammer the outer wall of the measuring cylinder 3, so that the measuring cylinder 3 is vibrated while rotating. This dual force can further improve the density of the sand. Finally, the density value is obtained by combining the weighing value of the weighing device 2 and the scale value on the measuring cylinder 3, which further improves the accuracy of its density detection.

Claims

1. A device for detecting the bulk density of building sand, comprising a base, characterized in that: A weighing device is provided above the base, a measuring cylinder is placed above the weighing device, a support component is provided between the weighing device and the base, and a connecting component is provided above the weighing device. An assembly for rotating and striking the measuring cylinder is provided above the base.

2. The building sand bulk density testing device according to claim 1, characterized in that: The support assembly includes an annular frame fixedly connected to the upper surface of the base, and the inner wall of the annular frame is slidably connected with a ring of support blocks, the top of each support block being connected to the bottom surface of the weighing device.

3. The building sand bulk density testing device according to claim 1, characterized in that: The connecting assembly includes an annular cylinder fixedly connected to the upper surface of the weighing device. The inner wall of the annular cylinder has slots arranged in a ring. Each slot has a insert bar inserted inside, and one side of each insert bar is connected to the outer surface of the weighing cylinder.

4. The building sand bulk density testing device according to claim 1, characterized in that: The rotating striking assembly includes a motor mounted on the upper surface of the base. A rotating rod is fixedly connected to the output end of the motor. A toothed ring is fixedly connected to the upper surface of the rotating rod. A toothed disc meshes with the outside of the toothed ring. The bottom surface of the toothed disc is connected to the upper surface of the weighing device.

5. The building sand bulk density testing device according to claim 4, characterized in that: A rotating plate is fixedly connected to the top of the rotating rod, and a striking plate is rotatably connected to the inner wall of the rotating plate.

6. The building sand bulk density testing device according to claim 5, characterized in that: Each of the impact plates has a protective pad fixedly attached to its outer surface, and each of the protective pads is made of sponge material.

7. The building sand bulk density testing device according to claim 4, characterized in that: The outer surface of the rotating rod is rotatably connected to a protective shell, and the bottom surface of the protective shell is connected to the upper surface of the base.

8. The building sand bulk density testing device according to claim 1, characterized in that: A display screen is mounted on the upper surface of the base, and the display screen is connected to the weighing device via a cable.

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