A cement detection device for building material detection

Abstract

The utility model discloses a cement detection equipment for building material detection relates to cement detection technical field, including the case and fixed installation in the negative pressure screen analysis appearance of case inside, the top of case is fixedly connected with the support disc through the support leg, and the upper surface of support disc is fixedly connected with the connecting disc through a plurality of springs, and the middle part of connecting disc is fixedly inserted with the cylinder, and the lower part penetrates support disc, and the bottom of cylinder is connected with the feed pipe of negative pressure screen analysis appearance in the case through the bellows, and the both sides of the bottom of connecting disc are fixedly connected with the vibration motor, the utility model discloses through two vibration motors, and the vibration is passed to the cylinder, makes the cylinder under the action of vibration and screens, and the cement powder on the cylinder wall is shaken and falls, and this kind of working mode cancels the setting of stirring rod, can reduce cement powder sample and the contact of instrument surface, thereby further reduce the possibility of material sticking on instrument, ensure the accuracy of detection data.

Description

Technical Field

[0001] This utility model relates to the field of cement testing technology, specifically to a cement testing device for testing building materials. Background Technology

[0002] Cement is a powdery hydraulic inorganic binder that, when mixed with water, forms a paste that hardens in air or water, and can firmly bind materials such as sand and stone together. The fineness of cement has a significant impact on the hydration and hardening rate, water requirement, workability, heat release rate, and especially on strength. Therefore, cement needs to be tested for fineness using a specialized fineness testing device before it is put into use.

[0003] Existing cement fineness testing equipment involves directly adding cement into a sieve cylinder for sieving. During the sieving process, cement powder easily adheres to the inner wall of the sieve cylinder, resulting in a lower percentage than the actual value and inaccurate test data. While patent application CN202420053641.2 uses a pneumatic hammer to shake the cement powder off the inner wall of the sieve cylinder, the spiral stirring rod also easily attracts sample during sieving, leading to inaccurate test data. Therefore, to address this issue, we propose a cement testing device for building materials. Utility Model Content

[0004] The purpose of this invention is to provide a cement testing device for testing building materials, aiming to solve the problem of inaccurate test data caused by the adhesion of cement powder samples in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cement testing device for testing building materials, comprising a chassis and a negative pressure sieve analyzer fixedly installed inside the chassis. A support leg is fixedly installed on the top of the chassis, and a support plate is fixedly connected to the support leg. A connecting plate is fixedly connected to the upper surface of the support plate by several springs. A cylinder is fixedly inserted into the middle of the connecting plate. The lower part of the cylinder penetrates the middle of the support plate. A corrugated pipe is fixedly connected to the bottom end of the cylinder. Screening holes are provided on the connecting surface of the cylinder and the corrugated pipe. The discharge end of the corrugated pipe penetrates the chassis and matches the feed end of the negative pressure sieve analyzer. Vibration motors are fixedly connected to both the front and rear sides of the bottom end of the connecting plate.

[0006] Furthermore, the chassis is equipped with a control panel, which is electrically connected to the negative pressure sieve analyzer and the vibration motor.

[0007] Furthermore, the top of the cylinder is provided with a cover plate, the bottom of the cover plate is provided with a groove, a sealing ring is slidably connected inside the groove, and the other end of the sealing ring is fixedly connected to the top of the cylinder.

[0008] Furthermore, the bottom of the cylinder is arc-shaped.

[0009] This utility model has the following beneficial effects:

[0010] This utility model provides a cement testing device for testing building materials. Two vibrating motors installed on the front and rear sides of the bottom of the connecting plate transmit vibration to the cylinder. The cylinder achieves a sieving effect under the action of vibration, and the cement powder adhering to the cylinder wall is shaken off. This working method eliminates the need for a stirring rod, which can reduce the contact between the cement powder sample and the instrument surface, thereby further reducing the possibility of material sticking to the instrument and ensuring the accuracy of the test data. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the appearance of the present utility model;

[0013] Figure 3 This is a bottom view of the inner cylinder of this utility model.

[0014] Figure 4 This is a schematic diagram of the connection of the sealing ring in this utility model;

[0015] In the diagram: 1. Chassis; 2. Negative pressure sieve analyzer; 3. Support leg; 4. Support plate; 5. Spring; 6. Connecting plate; 7. Cylinder; 8. Bellows; 9. Sieving hole; 10. Vibration motor; 11. Control panel; 12. Cover plate; 13. Sealing ring. Detailed Implementation

[0016] like Figures 1 to 4As shown, a cement testing device for building material testing includes a casing 1 and a negative pressure sieve analyzer 2 fixedly installed inside the casing 1. A support leg 3 is fixedly installed on the top of the casing 1, and a support plate 4 is fixedly connected to the support leg 3. A connecting plate 6 is fixedly connected to the upper surface of the support plate 4 via two springs 5. A cylinder 7 is fixedly inserted into the middle of the connecting plate 6. The lower part of the cylinder 7 penetrates the middle of the support plate 4. The bottom of the cylinder 7 is arc-shaped and has a fine material outlet. The fine material outlet is connected to a corrugated pipe 8. The cylinder 7 and the corrugated pipe... The corrugated pipe 8 has screening holes 9 for fine material screening on its connecting surface. The discharge end of the corrugated pipe 8 passes through the casing 1 and matches the feed end of the negative pressure sieve analyzer 2. Vibration motors 10 are fixedly connected to the front and rear sides of the bottom of the connecting plate 6. When the vibration motor 10 fixedly installed on the connecting plate 6 vibrates, the spring 5 reciprocates, and the cylinder 7 vibrates up and down, thereby allowing the cement powder to be fully screened in the cylinder 7. The negative pressure of the negative pressure sieve analyzer 2 is used to screen the cement powder inside the cylinder 7.

[0017] The chassis 1 is equipped with a control panel 11, which is electrically connected to the vibration motor 10 and the negative pressure sieve analyzer 2.

[0018] The top of the cylinder 7 is provided with a cover plate 12, and the bottom of the cover plate 12 is provided with a groove. A sealing ring 13 is slidably connected inside the groove, and the other end of the sealing ring 13 is fixedly connected to the top of the cylinder 7.

[0019] The specific operation process of this utility model is as follows:

[0020] Remove the cover plate 12 from the top of the cylinder 7, then pour the cement to be screened into the cylinder 7, and start the negative pressure sieve analyzer 2 through the control panel 11 to create negative pressure inside the cylinder 7. Start the vibration motor 10 to drive the cylinder 7 to vibrate up and down. At the same time, the corrugated pipe 8 is used to adsorb the cement inside the cylinder 7 to the bottom of the cylinder 7 and filter the cement. During the process, the operator taps the cover plate 12 appropriately to make the sample adhering to the end cover fall off. The filtered cement particles fall into the negative pressure sieve analyzer 2 and are screened.

Claims

1. A cement testing device for testing building materials, comprising a casing (1) and a negative pressure sieve analyzer (2) fixedly installed inside the casing (1), characterized in that: The top of the casing (1) is fixedly installed with a support leg (3), and a support plate (4) is fixedly connected to the support leg (3). The upper surface of the support plate (4) is fixedly connected to a connecting plate (6) by several springs (5). A cylinder (7) is fixedly inserted into the middle of the connecting plate (6). The lower part of the cylinder (7) passes through the middle of the support plate (4). A corrugated pipe (8) is fixedly connected to the bottom of the cylinder (7). Screening holes (9) are provided on the connecting surface of the cylinder (7) and the corrugated pipe (8). The discharge end of the corrugated pipe (8) passes through the casing (1) and matches the feed end of the negative pressure sieve analyzer (2). Vibration motors (10) are fixedly connected to both the front and rear sides of the bottom of the connecting plate (6).

2. The cement testing equipment according to claim 1, characterized in that, The chassis (1) is equipped with a control panel (11), which is electrically connected to the negative pressure sieve analyzer (2) and the vibration motor (10).

3. The cement testing equipment according to claim 1, characterized in that, The top of the cylinder (7) is provided with a cover plate (12), and the bottom of the cover plate (12) is provided with a groove. A sealing ring (13) is slidably connected inside the groove, and the other end of the sealing ring (13) is fixedly connected to the top of the cylinder (7).

4. The cement testing equipment according to claim 1, characterized in that, The bottom of the cylinder (7) is arc-shaped.

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