A concrete setting time detection device
By introducing a snap-fit component into the concrete setting time testing device, the problem of low probe replacement efficiency under threaded connection is solved, enabling convenient installation and disassembly of the probe, and improving testing efficiency and data reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG TIANHENG ENG CONSTR CONSULTING MANAGEMENT CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-14
AI Technical Summary
In existing concrete setting time testing devices, the threaded connection method results in low probe replacement efficiency, which affects testing efficiency.
The stylus is conveniently installed and removed by means of a snap-fit assembly, which uses a slot and a block. The design of the slot, housing, spring and connecting rod simplifies the stylus replacement process.
It improves the installation efficiency of probes, simplifies the operation process, ensures the convenience and stability of the replacement process, and adapts to the testing needs of different concrete conditions.
Smart Images
Figure CN224500628U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of detection devices, and in particular to a concrete setting time detection device. Background Technology
[0002] Currently, in concrete production, it is necessary to determine the setting time of concrete mixtures under different cement types, admixtures, mix proportions, and temperature conditions. Therefore, a concrete setting time testing device is required. The concrete penetration resistance meter is an instrument used to detect the setting time of concrete mixtures. It uses the lever principle and the penetration resistance method to determine the setting time of concrete.
[0003] Existing devices indirectly reflect the compressive strength or setting state of concrete by measuring the resistance of a penetrating needle perpendicularly pressed into a concrete sample under a certain mass or force. Greater resistance indicates higher concrete strength or a more advanced setting stage. During testing, the probe needs to be replaced. Current methods use a threaded connection to directly attach the probe to the resistance meter, but this method is inefficient due to the time required for rotation. Therefore, a snap-fit installation method was designed to address these issues and improve installation efficiency. Utility Model Content
[0004] The purpose of this invention is to provide a concrete setting time detection device to solve the problems mentioned in the background art.
[0005] The technical solution adopted in this utility model is:
[0006] A concrete setting time testing device includes: a pressure frame disposed on the top of a resistance meter body; a barrel disposed on the resistance meter body; a probe disposed at the bottom end of the pressure frame; a locking assembly disposed inside the pressure frame, the locking assembly including: a slot formed on the outer side wall of the probe; a housing rotatably disposed on the outer side wall of the pressure frame; a rectangular shell fixedly disposed on the outer side wall of the pressure frame; a spring disposed inside the rectangular shell; a slider slidably disposed inside the rectangular shell and connected to the spring; both ends of a connecting rod are rotatably connected to the inner side wall of the housing and one end of the slider; one end of a locking block penetrates the inner side wall of the pressure frame and is inserted into the interior of the rectangular shell and connected to the slider.
[0007] In some embodiments, one end of the card block is designed with a bevel.
[0008] In some embodiments, the rectangular shell and internal components are provided in four groups.
[0009] In some embodiments, the snap-fit assembly further includes a protrusion disposed on the outer side wall of the housing.
[0010] In some embodiments, the snap-fit assembly further includes an arc-shaped block disposed on the top of the probe.
[0011] In some embodiments, a limiting component is provided on the arc-shaped block, the limiting component further comprising: a rectangular groove formed on the top of the arc-shaped block; and a rectangular block disposed on the inner sidewall of the pressure frame.
[0012] In some embodiments, the snap-fit assembly further includes a four-sided pyramid disposed at the bottom of the rectangular block.
[0013] In some embodiments, the limiting component further includes: a groove formed at the bottom of the quadrangular pyramid and the rectangular block; a second spring disposed inside the groove and connected at its top end to the inner sidewall of the pressure frame; and a push rod disposed inside the groove and connected at its top end to the second spring.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This testing device uses a snap-fit assembly to control the extension and retraction of the snap-fit block, which engages with the snap-fit slot to restrict one end of the side rod into the interior of the pressure frame, thus completing the installation of the probe. Compared with the existing threaded connection method, this method is easier to operate and has higher installation efficiency. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure in this application;
[0018] Figure 2 This is a schematic diagram of the structure in this application where the pressure frame is detached from the probe;
[0019] Figure 3 This is a schematic diagram of the snap-fit assembly in this application;
[0020] Figure 4 This is a schematic diagram of the structure of the limiting component in this application.
[0021] Attached reference numerals: 11. Main body of the resistance meter; 12. Pressure frame; 13. Barrel; 14. Probe;
[0022] 2. Buckle assembly; 21. Buckle slot; 22. Housing; 23. Rectangular shell; 24. Spring 1; 25. Slider; 26. Connecting rod; 27. Buckle block; 28. Protruding strip; 29. Arc-shaped block;
[0023] 3. Restriction component; 31. Rectangular groove; 32. Rectangular block; 33. Four-sided pyramid; 34. Groove; 35. Spring II; 36. Push rod. Detailed Implementation
[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0026] Given that the probe needs to be replaced during the testing process in the current technology, the existing method of using a threaded connection to directly connect the probe to the resistance meter is inefficient because the existing threaded connection requires a certain amount of time to rotate.
[0027] As shown in the attached figures, this utility model provides a device for detecting the setting time of concrete.
[0028] The device includes: a pressure frame 12 on the top of the resistance meter body 11; a barrel 13 on the resistance meter body 11; a probe 14 on the bottom of the pressure frame 12; a latching assembly 2 inside the pressure frame 12, the latching assembly 2 including: a slot 21 on the outer side wall of the probe 14; a housing 22 rotatably mounted on the outer side wall of the pressure frame 12; a rectangular shell 23 fixedly mounted on the outer side wall of the pressure frame 12; a spring 24 fixedly mounted inside the rectangular shell 23; a slider 25 slidably mounted inside the rectangular shell 23 and fixedly connected to the spring 24; a connecting rod 26 with both ends rotatably connected to the inner side wall of the housing 22 and one end of the slider 25; a locking block 27 penetrating the inner side wall of the pressure frame 12 and inserted into the interior of the rectangular shell 23 to connect with the slider 25.
[0029] Specifically, the resistance meter body 11, the pressure frame 12, and the probe 14 constitute a concrete setting time detection device. Its working principle is to determine the setting time by measuring the change in the penetration resistance (penetration strength) of the concrete during the setting process. Specifically, the device controls the probe 14 to move vertically downwards by pressing the handle on the pressure frame 12, penetrating into the concrete grout inside the container. The grout generates resistance against the penetration needle, and this force is transmitted through a pressure sensor and displayed on an electronic digital display. As time increases, the penetration resistance of the concrete increases accordingly. By measuring the corresponding penetration resistance at different measuring points, the setting time data of the concrete is obtained.
[0030] When replacing the probe 14, first grasp the housing 22 and rotate it. As the housing 22 rotates, it pulls the connecting rod 26 on the inner wall, causing one end of the connecting rod 26 to pull the slider 25 inside the rectangular housing 23, compressing the spring 24. Simultaneously, this causes the locking block 27 to retract inside the rectangular housing 23, disengaging from the slot 21 and releasing the restriction on the probe 14. Then, pull the probe 14 out from inside the pressure frame 12. Replace it with a new probe 14, inserting its tip into the pressure frame 12 so that the slot 21 on the probe 14 aligns with the locking block 27. Then, release the housing 22. The spring 24 rebounds, pushing the slider 25 to slide inside the rectangular housing 23, pushing the locking block 27 into the slot 21, completing the replacement of the probe 14. The core purpose of replacing the probe 14 is to match the physical state of the concrete, meet standard requirements, and improve data reliability. In practical applications, it is necessary to scientifically select the probe model based on engineering needs, concrete mix proportions, and testing stages, and strictly follow the calibration process to ensure the validity of the test results.
[0031] In some embodiments, one end of the card block 27 is designed with a bevel.
[0032] The design of the beveled end of the locking block 27 can directly control the tip of the probe 14 to be inserted into the inside of the pressure frame 12 to squeeze the locking block 27 back until one end of the locking block 27 is aligned with the slot 21. Then, the spring 24 rebounds and pushes the slider 25 to move so that one end of the locking block 27 engages with the slot 21. This reduces the operation and makes the installation more convenient.
[0033] In some embodiments, the rectangular shell 23 and its internal components are provided in four groups.
[0034] The device is equipped with four sets of four locking blocks 27 that can engage with the slots 21, which better stabilizes the probe 14 and makes its installation more secure.
[0035] In some embodiments, the snap-fit assembly 2 further includes a protrusion 28 disposed on the outer side wall of the housing 22.
[0036] The design of the raised strip 28 can increase friction when gripping the housing 22, thereby reducing slippage.
[0037] In some embodiments, the latching assembly 2 further includes an arc-shaped block 29 disposed on the top of the probe 14.
[0038] The design of the arc-shaped block 29 can reduce friction with the block 27 when it is squeezed.
[0039] In some embodiments, a limiting component 3 is provided on the arc-shaped block 29, and the limiting component 3 further includes: a rectangular groove 31 formed on the top of the arc-shaped block 29; and a rectangular block 32 disposed on the inner sidewall of the pressure frame 12.
[0040] After the probe 14 is installed, the rectangular block 32 is inserted into the rectangular groove 31 on the arc block 29, which can restrict the rotation of the probe 14 and keep it stable.
[0041] In some embodiments, the snap-fit assembly 2 further includes a quadrangular pyramid 33 disposed at the bottom of the rectangular block 32.
[0042] The pointed design at the bottom of the square pyramid 33 makes it relatively easier to insert into the rectangular slot 31.
[0043] In some embodiments, the limiting component 3 further includes: a groove 34 formed at the bottom of the quadrangular pyramid 33 and the rectangular block 32; a second spring 35 disposed inside the groove 34 and connected at its top end to the inner sidewall of the pressure frame 12; and a push rod 36 disposed inside the groove 34 and connected at its top end to the second spring 35.
[0044] When the probe 14 is installed, the push rod 36 is pushed back into the groove 34 and the spring 2 35 is compressed. After the restriction on the probe 14 is released, the spring 2 35 rebounds and pushes the push rod 36 downward, which can push the probe out of the pressure frame 12 for easy disassembly.
[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A device for detecting the setting time of concrete, comprising: A pressure frame (12) is provided on the top of the resistance meter body (11); a barrel (13) is provided on the resistance meter body (11); a probe (14) is provided at the bottom of the pressure frame (12); characterized in that a buckling assembly (2) is provided inside the pressure frame (12), the buckling assembly (2) includes: a slot (21) opened on the outer side wall of the probe (14); a housing (22) rotatably disposed on the outer side wall of the pressure frame (12); a rectangular shell (23) fixedly disposed on the outer side wall of the pressure frame (12); a spring (24) disposed inside the rectangular shell (23); and a slider (25) slidably disposed inside the rectangular shell (23) and connected to the spring (24); The connecting rod (26) has two ends that are rotatably connected to the inner wall of the housing (22) and one end of the slider (25) by a locking block (27). One end of the rod passes through the inner wall of the pressure frame (12) and is inserted into the interior of the rectangular shell (23) to connect with the slider (25).
2. The concrete setting time detection device according to claim 1, characterized in that, One end of the card block (27) is designed with a bevel.
3. The concrete setting time detection device according to claim 1, characterized in that, The rectangular shell (23) and its internal components are provided in four sets.
4. The concrete setting time detection device according to claim 1, characterized in that, The buckle assembly (2) further includes a protrusion (28) disposed on the outer side wall of the housing (22).
5. A concrete setting time testing device according to claim 2, characterized in that, The buckle assembly (2) further includes an arc-shaped block (29) disposed on the top of the probe (14).
6. The concrete setting time detection device according to claim 5, characterized in that, The arc-shaped block (29) is provided with a limiting component (3), which further includes: a rectangular groove (31) opened on the top of the arc-shaped block (29); and a rectangular block (32) disposed on the inner side wall of the pressure frame (12).
7. A concrete setting time testing device according to claim 6, characterized in that, The buckle assembly (2) further includes a quadrangular pyramid (33) disposed at the bottom of the rectangular block (32).
8. The concrete setting time detection device according to claim 7, characterized in that, The limiting component (3) further includes: a groove (34) formed at the bottom of the quadrangular pyramid (33) and the rectangular block (32); a second spring (35) disposed inside the groove (34) and connected at its top to the inner sidewall of the pressure frame (12); and a push rod (36) disposed inside the groove (34) and connected at its top to the second spring (35).