A mortar water retention testing device

Abstract

The utility model relates to mortar water retention testing technical field discloses a mortar water retention testing arrangement, including test frame, the test frame top fixedly connected with the guide frame, the guide frame top is provided with the sealing cover, the sealing cover bottom with the guide frame top is inlaying, the sealing cover top fixedly connected with the column of taking, be provided with the lock between the guide frame with the sealing cover, the sealing cover inside is provided with pressure assembly, the pressure assembly includes guide rod and pressure disc, the guide rod sliding connection in the sealing cover inside, the pressure disc top fixedly connected in the guide rod bottom, in the utility model, through the column of taking the sealing cover and the guide frame inlaying, subsequently through the lock and fix the sealing cover, make pressure disc under the spring two elasticity and mortar inlaying, thereby reached the inlaying mortar control pressure degree's effect, solved the problem that the traditional device does not press evenly, improved the accuracy of test data.

Description

Technical Field

[0001] This utility model relates to the field of mortar water retention testing technology, and in particular to a mortar water retention testing device. Background Technology

[0002] Mortar water retention is one of the important indicators for evaluating mortar performance, directly affecting construction quality and project durability. In actual construction, water loss in mortar can lead to problems such as decreased bond strength and cracking. Therefore, accurate testing of mortar water retention is of great significance for optimizing mix proportions and construction processes. Traditional testing methods mostly rely on manual operation or simple equipment, which are difficult to simulate the pressure conditions in real construction environments, resulting in deviations between test results and actual working conditions. With the increasing requirements of the construction industry for material performance, the development of a device that can accurately simulate construction pressure and stably test mortar water retention has become an urgent need.

[0003] In existing technologies, the water retention of mortar is usually tested using the filter paper water absorption method or the vacuum filtration method. The filter paper water absorption method involves placing the mortar on filter paper, using the filter paper to absorb the water released from the mortar, and then calculating the water retention rate by weighing.

[0004] However, existing technologies suffer from uneven pressure application. Traditional devices often use fixed weights, making it difficult to ensure uniform contact between the pressure plate and the mortar surface. This results in excessive or insufficient local pressure, affecting the accuracy of test data. In particular, when simulating different construction conditions, traditional devices cannot dynamically adjust the pressure to match the actual working conditions, leading to significant differences between the test results and the actual performance. To address this issue, a mortar water retention testing device is proposed. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a mortar water retention testing device, which aims to improve the problem that the existing technology often uses fixed weights, which makes it difficult to ensure uniform contact between the pressure plate and the mortar surface, resulting in excessive or insufficient local pressure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A mortar water retention testing device includes a test frame, a guide frame fixedly connected to the top of the test frame, a sealing cover provided on the top of the guide frame, the bottom of the sealing cover fitting against the top of the guide frame, a lifting column fixedly connected to the top of the sealing cover, a locking buckle provided between the guide frame and the sealing cover, and a pressure component provided inside the sealing cover. The pressure assembly includes a guide rod and a pressure plate. The guide rod is slidably connected inside the sealing cover. The top of the pressure plate is fixedly connected to the bottom of the guide rod. A connecting frame is fixedly connected to the top of the guide rod. A pressure assembly is provided on the outer wall of the guide rod. The pressure plate is slidably connected inside the test frame. A water absorption frame is fixedly connected to the bottom of the test frame. An adsorption assembly is provided inside the water absorption frame. A positioning assembly is provided on the outer wall of the water absorption frame.

[0007] As a further description of the above technical solution: The pressure assembly includes a second spring, which is sleeved on the outer wall of the guide rod. One end of the second spring is fixedly connected to the bottom of the sealing cover, and the other end of the second spring is fixedly connected to the top of the pressure plate.

[0008] As a further description of the above technical solution: The adsorption assembly includes a sliding frame and absorbent paper. The sliding frame is slidably connected to the inner wall of the absorbent frame, and the absorbent paper is disposed inside the sliding frame. A permeable plate is fixedly connected inside the test frame.

[0009] As a further description of the above technical solution: The positioning component includes a locking post and a sliding post. The locking post is slidably connected inside the water absorption frame, and one end of the sliding post is fixedly connected to the side wall of the locking post. The sliding post is slidably connected inside the water absorption frame.

[0010] As a further description of the above technical solution: The sliding frame has a slot on its side wall, and the locking post engages with the slot.

[0011] As a further description of the above technical solution: A hollow frame is fixedly connected to the outer wall of the water-absorbing frame, and the sliding column is slidably connected inside the hollow frame.

[0012] As a further description of the above technical solution: The other end of the sliding column is rotatably connected to a handle, and the outer wall of the handle is slidably connected to the outer wall of the hollow frame.

[0013] As a further description of the above technical solution: A spring is fitted on the outer wall of the sliding column. One end of the spring is fixedly connected to the side wall of the locking column, and the other end of the sliding column is fixedly connected to the inner wall of the hollow frame.

[0014] This utility model has the following beneficial effects: 1. In this utility model, the sealing cover is brought into contact with the guide frame by lifting the column, and then the sealing cover is fixed by the buckle, so that the pressure plate is in contact with the mortar under the elastic force of the second spring. This allows the pressure plate to always apply stable pressure to the mortar, simulating the pressure environment in actual construction, thereby achieving the effect of controlling the pressure intensity by contacting the mortar. This solves the problem of uneven pressure application in traditional devices and improves the accuracy of test data.

[0015] 2. In this utility model, the sliding column is moved by the rotating handle, and then the sliding column drives the locking column to disengage from the slot, so that the sliding frame can be pulled out from the absorbent frame, thereby making it convenient to replace and check the absorbent paper. After completion, the reverse operation is performed to make the locking column lock into the slot to fix the sliding frame, thereby achieving the effect of quickly replacing the absorbent paper, solving the problem of cumbersome replacement of absorbent paper in traditional devices, and improving the ease of operation of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a mortar water retention testing device proposed in this utility model; Figure 2 This is an exploded structural diagram of the sealing cover of a mortar water retention testing device proposed in this utility model; Figure 3 This is an exploded structural diagram of the pressure plate of a mortar water retention testing device proposed in this utility model. Figure 4 This is an exploded structural diagram of the sliding frame of a mortar water retention testing device proposed in this utility model. Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0017] Legend: 1. Test frame; 2. Guide frame; 3. Sealing cover; 4. Lifting column; 5. Water absorption frame; 6. Lock; 7. Sliding frame; 8. Water-absorbing paper; 9. Slot; 10. Water-permeable plate; 11. Hollow frame; 12. Locking column; 13. Sliding column; 14. Spring 1; 15. Rotating handle; 16. Connecting frame; 17. Guide rod; 18. Spring 2; 19. Pressure plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-5An embodiment of this utility model provides a mortar water retention testing device, including a test frame 1, which is used to contain the mortar to be tested and provide a testing space. A guide frame 2 is fixedly connected to the top of the test frame 1. The guide frame 2 is used to guide the movement of the sealing cover 3 and ensure its alignment with the test frame 1. The top of the guide frame 2 is provided with a sealing cover 3, which is used to close the test frame 1 to prevent moisture evaporation from interfering with the test results. The bottom of the sealing cover 3 is in contact with the top of the guide frame 2 to ensure sealing. A lifting column 4 is fixedly connected to the top of the sealing cover 3, which facilitates the operator to lift and move the sealing cover 3. A locking buckle 6 is provided between the guide frame 2 and the sealing cover 3, which is used to fix the sealing cover 3 to prevent it from loosening during the test. A pressure component is provided inside the sealing cover 3, which is used to apply stable pressure to the mortar to simulate actual construction conditions. The pressure assembly includes a guide rod 17 and a pressure plate 19. The guide rod 17 is slidably connected inside the sealing cover 3 to provide stable vertical movement guidance. The top of the pressure plate 19 is fixedly connected to the bottom of the guide rod 17 to transmit pressure to the mortar surface. A connecting frame 16 is fixedly connected to the top of the guide rod 17. The connecting frame 16 is used to connect a spring or other force-applying mechanism to provide uniform pressure. A pressure assembly is provided on the outer wall of the guide rod 17. The pressure assembly provides adjustable pressure through a spring or similar structure. The pressure plate 19 is slidably connected inside the test frame 1 to ensure close contact with the mortar surface. A water-absorbing frame 5 is fixedly connected to the bottom of the test frame 1. The water-absorbing frame 5 is used to hold absorbent paper 8 to absorb moisture released from the mortar. An adsorption assembly is provided inside the water-absorbing frame 5. The adsorption assembly is used to fix the absorbent paper 8 and ensure that it is in full contact with the bottom of the mortar. A positioning assembly is provided on the outer wall of the water-absorbing frame 5. The positioning assembly is used to quickly install and remove the water-absorbing frame 5 to replace the absorbent paper 8.

[0020] Reference Figures 1-5The pressure assembly includes a second spring 18, which is sleeved on the outer wall of the guide rod 17 to provide stable elastic support. One end of the second spring 18 is fixedly connected to the bottom of the sealing cover 3 as a force fixing point, and the other end of the second spring 18 is fixedly connected to the top of the pressure plate 19 to transfer the elastic force to the mortar surface. The adsorption assembly includes a sliding frame 7 and absorbent paper 8. The sliding frame 7 is slidably connected to the inner wall of the absorbent frame 5 for easy pull-out replacement. The absorbent paper 8 is placed inside the sliding frame 7 to absorb the water released from the mortar. A permeable plate 10 is fixedly connected inside the test frame 1. The permeable plate 10 supports the mortar sample while allowing water to permeate to the absorbent paper 8. The positioning assembly includes a locking post 12 and a sliding post 13. The locking post 12 is slidably connected inside the absorbent frame 5 to achieve a locking function, and one end of the sliding post 13 is fixedly connected to the side of the locking post 12. The wall transmits operating force. The sliding column 13 is slidably connected inside the water-absorbing frame 5 to provide guidance. The side wall of the sliding frame 7 has a slot 9, which engages with the slot 12 to fix the sliding frame 7. The outer wall of the water-absorbing frame 5 is fixedly connected to a hollow frame 11, which provides installation and movement space for the sliding column 13. The sliding column 13 is slidably connected inside the hollow frame 11 to ensure movement stability. The other end of the sliding column 13 is rotatably connected to a handle 15, which is slidably connected to the outer wall of the hollow frame 11 for easy operation. The handle 15 is used to drive the sliding column 13 to move and release the slot 12. The outer wall of the sliding column 13 is fitted with a spring 14. One end of the spring 14 is fixedly connected to the side wall of the slot 12 to provide a reset elastic force, and the other end of the spring 14 is fixedly connected to the inner wall of the hollow frame 11 as a fixed support point.

[0021] Working principle: When testing the water retention of mortar, absorbent paper 8 is first placed into the sliding frame 7. The sliding column 13 is moved by the rotating handle 15, which in turn moves the locking column 12 to compress the spring 14. Then, the sliding frame 7 is pushed into the absorbent frame 5. The rotating handle 15 is released, and the spring 14 returns to its original position, causing the locking column 12 to engage with the slot 9, thus fixing the sliding frame 7. Next, the mortar is poured into the test frame 1, positioning it above the permeable plate 10. The lifting column 4 moves the sealing cover 3 to fit against the guide frame 2, and the locking buckle 6 secures the sealing cover 3. At this point, the pressure plate 19 is in contact with the mortar, and the guide rod 17... Under pressure, the frame moves upward, causing the connecting frame 16 to move upward. At the same time, the second spring 18 is compressed. The elastic force of the second spring 18 is transmitted to the mortar through the pressure plate 19, so that the pressure plate 19 is always in close contact with the mortar. The water in the mortar permeates into the absorbent paper 8 through the permeable plate 10. After the test is completed, the lock 6 is released, and the sealing cover 3 is disengaged from the guide frame 2 by lifting column 4. Then, the sliding column 13 and the locking column 12 are moved by rotating handle 15, so that the locking column 12 is disengaged from the locking groove 9. The sliding frame 7 is pulled out from the absorbent frame 5, and the absorbent paper 8 can be taken out to measure the water absorption, thus completing the test of the water retention of the mortar.

[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Images