Cement setting time measuring device

Abstract

The utility model discloses a cement setting time measuring device which comprises a base, a cleaning container is arranged above the base, the side face of the cleaning container is provided with a water inlet and an air inlet, and the bottom of the cleaning container is provided with a drainage channel. According to the utility model, the water inlet is formed in the cleaning container, residual cement on the measuring probe is cleaned by water flow, and after water flow cleaning, flowing air is fed through the air inlet to dry residual water spots on the measuring probe, so that the water spots are prevented from influencing the measuring effect of the next test block; cleaned cement can be discharged through the drainage channel, and the cleaning container is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of cement setting time measurement, and particularly relates to a cement setting time measuring device. Background Art

[0002] Cement plays a key role in various construction and industrial fields. The physical and chemical properties of cement directly affect the strength of buildings and are related to the use safety of buildings. The cement setting time is important information about the quality and performance of cement and has an important impact on aspects such as concrete construction, quality control, and engineering safety.

[0003] The initial setting time and final setting time of cement are important indicators for judging the cement setting time. The initial setting time refers to the time required for the cement paste to start losing plasticity from the moment when the cement is mixed with water. This marks the initial completion of the cement hydration reaction, and the cement paste gradually changes from a flowing state to a solid state. The initial setting time of Portland cement and ordinary Portland cement shall not be earlier than 45 minutes. The final setting time refers to the time required for the cement paste to completely lose plasticity and start to generate strength from the moment when the cement is mixed with water. This marks the basic completion of the cement hydration reaction, and the cement paste completely changes to a solid state. The final setting time of Portland cement shall not be later than 390 minutes (6.5 hours), and the final setting time of ordinary Portland cement shall not be later than 10 hours.

[0004] Commonly used cement setting time measurements are usually carried out using a measuring device with manual reading. By releasing the test needle at intervals for reading, the initial setting and final setting times of the cement are obtained according to relevant specifications. In the prior art, as disclosed in patent CN211086013U, a cement setting time measuring device includes a constant temperature box, a cleaning device, etc., which can automatically measure the cement setting time and can clean the probe after the test.

[0005] After measuring a test piece once on the measuring probe, cement will remain on the probe. If it is not cleaned thoroughly and the next test piece is measured directly, it will affect the measurement accuracy. At the same time, the existing cement setting time measuring device uses a brush to clean the probe, and some cement will remain on the brush during the cleaning process. After the cement solidifies, it will affect the cleaning effect, and the solidified cement on the brush contacting the probe will damage the probe. Summary of the Invention

[0006] The purpose of the utility model is to solve the problems existing in the prior art and provide a cement setting time measuring device. This device uses water flow to clean the cement remaining on the measuring probe and dries it after flushing, solving problems such as the large workload of manual cleaning of the measuring probe or the incomplete automatic cleaning by the brush, and improving the work efficiency and measurement accuracy.

[0007] To achieve the above object, the technical solution adopted by the present utility model is as follows:

[0008] The present utility model provides a device for measuring the setting time of cement, which comprises a base. A constant temperature box is arranged inside the base. A measurement port is provided in the constant temperature box. A lifting rod is arranged on the base. A cross beam is arranged at the upper end of the lifting rod. A movable sliding seat is arranged on the cross beam. An electric gripper is arranged on the sliding seat. A measurement probe is arranged on the electric gripper. A cleaning container is further arranged on the base below the cross beam. An inlet and an air inlet are arranged inside the cleaning container. The cleaning container is used for cleaning the measurement probe.

[0009] Through the lifting rod and the sliding seat, the lifting and translation of the measurement probe can be realized. After measurement, the measurement probe is moved into the cleaning container for cleaning, avoiding the influence of the residual cement on the measurement probe on subsequent measurements. Through the water inlet, the residual cement on the measurement probe is cleaned by water flow. After the water flow cleaning, flowing air is sent through the air inlet to dry the residual water stains on the measurement probe, preventing the water stains from affecting the measurement effect of the next specimen.

[0010] Further, the cleaning container comprises an inner wall and an outer wall. A cavity is formed between the inner wall and the outer wall. The water inlet and the air inlet are both located on the outer wall. A plurality of cleaning holes are further arranged on the side surface of the inner wall.

[0011] Water flow and gas fill the cleaning container through the cavity. The water flow can clean the periphery of the measurement probe through a plurality of the cleaning holes, preventing incomplete cleaning. At the same time, through the plurality of cleaning holes, air flow is used to dry the periphery of the measurement probe, ensuring the effect of drying the water stains.

[0012] Further, a sewage discharge channel is arranged at the bottom end of the cleaning container. The sewage discharge channel is communicated with the bottom end of the inner wall. The sewage discharge channel can discharge the cleaned cement, avoiding the blockage of the cleaning container by the cement.

[0013] Further, the water inlet is connected to a water pump through a water inlet pipe, and the air inlet is connected to a blower through an air inlet pipe. The water pump and the blower are placed in a storage room arranged inside the base. The water flow flushing process can be automatically controlled through the water pump, and the air supply process can be automatically set through the blower, improving the automation degree of the measuring device. The storage room can play a role in dust prevention.

[0014] Further, a guiding frame is arranged on the sliding seat. The measurement probe is located inside the guiding frame. The guiding frame can prevent the measurement probe from being displaced.

[0015] Furthermore, a tray is provided inside the thermostat. The tray facilitates the placement and retrieval of specimens.

[0016] Furthermore, a limit block is provided on the measuring probe, and a ranging sensor is provided on the limit block. By contacting the upper surface of the base with the limit block, it is avoided that when the measuring probe enters the specimen, due to insufficient hardness of the cement, it directly impacts the bottom of the specimen mold, resulting in damage to the measuring probe; through the ranging sensor, the depth of the measuring probe entering the cement specimen can be read, so as to obtain the initial setting and final setting times of the cement.

[0017] Furthermore, the lifting rod is any one of an electric push rod, a pneumatic push rod, and a hydraulic push rod.

[0018] Furthermore, an electric slide rail is provided on the cross beam, and the sliding seat is connected to the electric slide rail. The horizontal movement of the sliding seat is realized through the electric slide rail.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. The lifting and translation of the measuring probe can be realized through the lifting rod and the sliding seat. After measurement, the measuring probe is moved to the cleaning container for cleaning, avoiding the influence of the residual cement on the measuring probe on subsequent measurements.

[0021] 2. Through the water inlet, the residual cement on the measuring probe is cleaned by using water flow. After the water flow cleaning, flowing air is sent through the air inlet to dry the residual water stains on the measuring probe, preventing the water stains from affecting the measurement effect of the next specimen.

[0022] 3. By the limit block, it is avoided that when the measuring probe enters the specimen, due to insufficient hardness of the cement, it directly impacts the bottom of the specimen mold, avoiding damage to the measuring probe; through the ranging sensor, the depth of the measuring probe entering the cement specimen can be read, so as to obtain the initial setting and final setting times of the cement, improving the working efficiency of the measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a side view of a device for measuring the setting time of cement according to the present utility model;

[0024] Figure 2 is a Figure 1 partial enlarged view of part A of a device for measuring the setting time of cement according to the present utility model;

[0025] Figure 3 is a first measurement state diagram of a device for measuring the setting time of cement according to the present utility model;

[0026] Figure 4 is a second measurement state diagram of a device for measuring the setting time of cement according to the present utility model;

[0027] Figure 5 This is the cleaning diagram of the measuring probe of a device for measuring the setting time of cement according to the present utility model;

[0028] Figure 6 This is the front view of a device for measuring the setting time of cement according to the present utility model;

[0029] Figure 7 This is the rear view of a device for measuring the setting time of cement according to the present utility model.

[0030] In the figure: 1. Base; 101. Thermostatic chamber; 102. Storage room; 103. Measuring port; 2. Cleaning container; 201. Inner wall; 202. Outer wall; 203. Cleaning chamber; 204. Channel; 3. Water inlet; 4. Air inlet; 5. Cleaning hole; 6. Drainage channel; 7. Water pump; 8. Blower; 9. Lifting rod; 10. Cross beam; 11. Measuring probe; 12. Slide base; 13. Electric gripper; 14. Guide frame; 15. Limit block; 16. Drainage channel; 17. Distance measuring sensor; 18. Specimen; 19. Tray; 20. Water supply connection port. Detailed implementation manners

[0031] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention 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 thus should not be construed as a limitation to the present invention.

[0033] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] Next, in combination with Figures 1 to 7, through specific embodiments and their application scenarios, a device for measuring the setting time of cement provided by the embodiments of the present utility model will be described in detail.

[0035] The present utility model provides a device for measuring the setting time of cement, including a base 1. A constant temperature box 101 is arranged inside the base 1. A measurement opening 103 is provided in the constant temperature box 101. A lifting rod 9 is arranged on the base 1. The upper end of the lifting rod 9 is provided with a cross beam 10. A movable sliding seat 12 is arranged on the cross beam 10. An electric gripper 13 is arranged on the sliding seat 12. A measurement probe 11 is arranged on the electric gripper 13. A cleaning container 2 is also arranged on the base 1 below the cross beam 10. An inlet 3 and an air inlet 4 are arranged inside the cleaning container 2. The cleaning container 2 is used to clean the measurement probe 11.

[0036] Specifically, as Figure 1 and Figure 5 shown, the base 1 is a box-shaped structure with a hollow interior. A constant temperature box 101 is arranged inside the base 1. The test piece 18 to be measured is placed inside the constant temperature box 101. The constant temperature box 101 can ensure the temperature and humidity during the curing process of the test piece, so that the test piece 18 is formed to meet the specification requirements, improving the accuracy of the test. A measurement opening 103 is left above the constant temperature box 101, facilitating the measurement probe 11 to extend in for measurement. A lifting rod 9 is also fixedly connected to the base 1. The upper end of the lifting rod 9 is fixedly connected to a cross beam 10. A horizontally movable sliding seat 12 is arranged on the cross beam 10. The sliding seat 12 is connected to an electric gripper 13. The measurement probe 11 is connected to the electric gripper 13. The translation and lifting of the measurement probe 11 can be realized through the sliding seat 12 and the lifting rod 9. The electric gripper 13 is electrically connected to the controller. Preferably, the electric gripper 13 is an electromagnet. A magnet is arranged at the upper end of the measurement probe 11. During use, the controller is used to control the electric gripper 13 to obtain or lose magnetism, thereby realizing the grasping and releasing of the measurement probe 11. A cleaning container 2 is also fixedly connected to the base 1. An inlet 3 and an air inlet 4 are also arranged inside the cleaning container 2. By adjusting the lifting of the lifting rod 9 and the translation of the sliding seat 12, the measurement probe 11 is moved to the cleaning container 2 for cleaning after measuring the test piece 18, avoiding the influence of the residual cement on the measurement probe 11 on subsequent measurements. Water flow is input through the inlet 3 to clean the residual cement on the measurement probe 11. After the water flow cleaning, flowing air is sent through the air inlet 4 to dry the residual water stains on the measurement probe 11, preventing the water stains from affecting the measurement effect of the next test piece 18.

[0037] Furthermore, as Figure 2As shown, the cleaning container 2 includes an inner wall 201 and an outer wall 202. A cavity 204 is formed between the inner wall 201 and the outer wall 202. The water inlet 3 and the air inlet 4 are both located on the outer wall 202. A number of cleaning holes 5 are also provided on the side surface of the inner wall 201. Water flow and gas fill the cleaning container 2 through the cavity 204. The water flow can clean the periphery of the measurement probe 11 through the number of cleaning holes 5, preventing incomplete cleaning. At the same time, through the number of cleaning holes 5, air flow is used to dry the periphery of the measurement probe 11, ensuring the effect of drying the water stains.

[0038] Further, as Figure 2 shown, a sewage discharge channel 16 is provided at the bottom end of the cleaning container 2. The sewage discharge channel 16 is communicated with the bottom end of the inner wall 201. The cement for cleaning can be discharged through the sewage discharge channel 16, avoiding sludge blockage of the cleaning container 2.

[0039] Further, as Figure 1 and Figure 7 shown, the water inlet 3 is connected to a water pump 7 through a water inlet pipe. External water source supplies water through the water supply connection port 20 provided on the base 1. The water supply connection port 20 is connected to the water pump 7 through a pipe. The water flow into the cleaning container 2 can be controlled through the water pump 7. The air inlet 4 is connected to a blower 8 through an air inlet pipe. The air entering the cleaning container 2 for drying the water stains is controlled through the blower 8. A storage room 102 is provided inside the base 1. The water pump 7 and the blower 8 are placed in the storage room 102 provided inside the base 1. The storage room 102 can play a role in dust prevention.

[0040] Further, as Figure 1 shown, a guide frame 14 is provided on the sliding seat 12. One end of the guide frame 14 is fixedly connected to the sliding seat 12. A round hole is provided at the bottom of the guide frame 14. The measurement probe 11 passes through the round hole, preventing the measurement probe 11 from being displaced during movement.

[0041] Further, as Figure 1 shown, a tray 19 is provided inside the constant temperature box 101. The specimen 18 is located on the tray 19. The tray 19 can slide horizontally. It is convenient to place and take the specimen 18 through the tray 19.

[0042] Further, as Figure 1 and Figure 6As shown in the figure, a limit block 15 is provided on the measuring probe 11, and a ranging sensor 17 is provided on the limit block 15. The area of the limit block 15 is slightly larger than the area of the measuring port 103. By means of the limit block 15, when the measuring probe 11 enters the test piece 18, it can be avoided that the measuring probe 11 directly hits the bottom of the mold due to insufficient cement hardness, resulting in damage to the measuring probe 11. The depth of the measuring probe 11 entering the test piece 18 can be read through the ranging sensor 17, so as to obtain the initial setting time and final setting time of the test piece 18. The ranging sensor 17 is electrically connected to an external control platform, and measurement data can be obtained in the control platform.

[0043] Furthermore, the lifting rod 9 is any one of an electric push rod, a pneumatic push rod and a hydraulic push rod. Preferably, the lifting rod 9 is an electric push rod, and the lifting of the lifting rod 9 can be controlled through the control platform.

[0044] Furthermore, an electric slide rail is provided on the cross beam 10, and the sliding seat 12 is connected to the electric slide rail. The horizontal movement of the sliding seat 12 is realized through the electric slide rail, and the movement of the electric slide rail can be controlled through the control platform.

[0045] When using the measuring device of the present utility model, as Figure 3 shown, by adjusting the lifting rod 9 and the electric slide rail, the measuring probe 11 is adjusted to be directly above the test piece 18, and the needle tip of the measuring probe 11 is just in contact with the upper surface of the test piece 18. Since the ranging sensors 17 are arranged on both sides of the limit block 15, the ranging sensors 17 can measure the distance from the ranging sensors to the upper surface of the base 1. When adjusting the needle tip of the measuring probe 11 to be just in contact with the test piece, the value measured by the ranging sensor is recorded for the first time. Then, through the control platform, the electric gripper 13 is controlled to lose magnetism. As Figure 4 shown, the measuring probe 11 freely falls into the test piece 18. After the measuring probe 11 is stable, the value measured by the ranging sensor is recorded for the second time. The depth of the measuring probe 11 entering the test piece 18 can be obtained through the difference between the two values, and then the initial setting time can be judged. After curing for a period of time, the above operations are repeated to obtain the final setting time.

[0046] Among them, as Figure 5 shown, after one measurement, the electric gripper 13 is controlled to obtain magnetism and grab the measuring probe 11, and the lifting rod 9 and the electric slide rail are adjusted to make the measuring probe 11 enter the cleaning container 2. Water flow is sent into the cavity 204 through the water pump 7. The water flow fills the cavity 204 and enters the cleaning cavity 203 when flowing through the cleaning holes 5, so as to clean the periphery of the measuring probe 11. After 15 to 20 seconds, the water pump 7 is turned off, and the air blower 8 is turned on. The air flow delivered by the air blower 8 dries the water stains remaining on the measuring probe 11 through the cleaning holes 5, ensuring the dryness of the measuring probe 11 and avoiding affecting the next measurement.

[0047] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the setting time of cement, comprising a base (1), wherein a thermostat (101) is arranged inside the base (1), and a measuring port (103) is provided on the thermostat (101), characterized in that, A lifting rod (9) is arranged on the base (1). A cross beam (10) is arranged at the upper end of the lifting rod (9). A movable sliding seat (12) is arranged on the cross beam (10). An electric gripper (13) is arranged on the sliding seat (12). A measuring probe (11) is arranged on the electric gripper (13). A cleaning container (2) is further arranged on the base (1) below the cross beam (10). An inlet (3) and an air inlet (4) are arranged in the cleaning container (2). The cleaning container (2) is used for cleaning the measuring probe (11).

2. The cement setting time measuring device according to claim 1, characterized in that, The cleaning container (2) includes an inner wall (201) and an outer wall (202). A cavity (204) is formed between the inner wall (201) and the outer wall (202). The inlet (3) and the air inlet (4) are both located on the outer wall (202). A plurality of cleaning holes (5) are further arranged on the side surface of the inner wall (201).

3. The cement setting time measuring device according to claim 2, characterized in that, A sewage discharge channel (6) is arranged at the bottom end of the cleaning container (2). The sewage discharge channel (6) is communicated with the bottom end of the inner wall (201).

4. A cement setting time measuring device according to claim 1, characterized in that, The inlet (3) is connected to a water pump (7) through a water inlet pipe. The air inlet (4) is connected to a blower (8) through an air inlet pipe. The water pump (7) and the blower (8) are both placed in a storage room (102) arranged in the base (1).

5. The cement setting time measuring device according to claim 1, characterized in that, A guiding frame (14) is arranged on the sliding seat (12). The measuring probe (11) is located inside the guiding frame (14).

6. The cement setting time measuring device according to claim 1, characterized in that, A tray (19) is arranged in the constant temperature box (101).

7. A device for measuring the setting time of cement according to claim 1, characterized in that, A limiting block (15) is arranged on the measuring probe (11). A distance measuring sensor (17) is arranged on the limiting block (15).

8. A device for measuring the setting time of cement according to claim 1, characterized in that, The lifting rod (9) is any one of an electric push rod, a pneumatic push rod and a hydraulic push rod.

9. A device for measuring the setting time of cement according to claim 1, characterized in that, An electric slide rail is arranged on the cross beam (10). The sliding seat (12) is connected to the electric slide rail.

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